JP7290452B2 - Grinding program generation device and grinding program generation method - Google Patents

Description

The present invention relates to a grinding program generation device, a grinding program processing device, and a grinding program generation method, and more particularly to a grinding program generation device and the like for generating a grinding program for a grinding machine.

Conventionally, in a grinding process, first, the shape of an object to be processed is specified using CAD or the like, and then an NC program for processing is generated (see Patent Document 1).

JP 2009-226562 A

Programs for grinders involve multiple tools and machining procedures in a complex manner. Unlike wire electric discharge machines, for example, where tools are fixed, programs for grinders are generally difficult to generate automatically. is being checked for operation. Certainly, it is possible to program the grinding process by entering the instructions manually. However, it is difficult to manually create even a complicated shape.

In the method described in Patent Document 1, etc., the user can freely design the shape of the object to be processed. cannot be checked at design time.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a grinding program generation apparatus or the like that allows a user to confirm in real time when specifying a machining shape.

A first aspect of the present invention is a grinding program generation device for generating a grinding program for a grinding machine, comprising a section information input section and a machining trajectory processing section, wherein the section information input section inputs a machining trajectory. Start point information specifying a start point and section end point information specifying a section end point in one or more sections constituting the machining trajectory are input, the start point information includes a start point position, and the section end point information is The machining trajectory includes a connecting shape, a section end point position, and chamfering, and the machining trajectory includes, for each section that does not include at least the end point of the machining trajectory, the section as a connecting shape specified by the section end point information of the section Chamfering is performed at the end point, and the machining trajectory processing unit checks whether or not the machining trajectory can be realized at least when the section end point information is added, deleted, or changed, and if the machining trajectory can be realized, generating drawing information for displaying the machining trajectory, generating a subprogram for realizing the machining trajectory, and if the machining trajectory cannot be realized, specifying an unachievable section end point;

A second aspect of the present invention is the grinding program generation device according to the first aspect, wherein the connecting shape includes a curved shape, and the machining trajectory processing unit, when the curved shape is specified in a certain section, and if it is specified by the section end point information of the immediately preceding section near the start point in the machining locus that chamfering is to be performed, the section end point of the immediately preceding section is specified as one that cannot be chamfered.

A third aspect of the present invention is the grinding program generating apparatus according to the first or second aspect, comprising: a main program generating unit for setting machining conditions and generating a main program for calling the subprogram; , a storage processing unit that stores the combination of the subprogram and the drawing information, and a reading processing unit that reads out the combination of the main program, the subprogram, and the drawing information after displaying the saved drawing information.

A fourth aspect of the present invention is the grinding program generating apparatus according to any one of the first to third aspects, wherein the display means displays the Display one of the drawing information and the subprogram.

A fifth aspect of the present invention is a grinding program processing device that generates a program for a grinding machine, and specifies a machining trajectory based on machining trajectory specifying information and/or an analysis target program input by a user. A machining locus processing unit, a tool information setting unit for setting tool information, and a tool information display unit for displaying a tool shape specified by the tool information for part or all of the machining locus on display means. and the tool information display unit displays the shape of the tool on the left or right side with respect to the machining direction in the machining locus.

A sixth aspect of the present invention is the grinding program processing apparatus according to the fifth aspect, wherein the machining trajectory specifying information is information specifying one or more sections constituting the machining trajectory, and the tool The information display unit displays the shape of the tool at the end point of at least one section for the machining trajectory specified based on the machining trajectory specifying information, and displays the shape of the tool at the end point of at least one section for the machining trajectory specified based on the analysis target program , to display the shape of the tool at the end point of the section corresponding to at least one block information.

A seventh aspect of the present invention is a grinding program generation method for generating a grinding program for a grinding machine, in which a machining locus processing unit provided in a grinding program generation device includes a sub for performing machining processing according to the machining locus. A program generation step of generating a program and a drawing image for displaying the machining trajectory, and generating a main program in which a main program generation unit provided in the grinding program generation device sets processing conditions and calls the subprogram. include.

According to each aspect of the present invention, when the user specifies each section constituting the machining trajectory and specifies the entire machining trajectory, the machining trajectory processing unit draws the drawing information of the machining trajectory and the subprogram in real time. , the user can visually confirm the shape using the drawing information, and can also specifically confirm the shape using the generated subprogram.

Furthermore, as in the third aspect, a subprogram for processing and a main program that calls the subprogram can be designed at the same time. can be visually confirmed in advance by drawing information.

FIG. 2A is a block diagram showing an example of the configuration of the grinder according to the embodiment of the present invention, and (b) to (d) is a flow chart showing an example of operations. It is a figure which shows a concrete example of the grinder 1 of FIG. 2 is a diagram showing an example of processing for specifying a machining trajectory by a machining trajectory processing unit 7 of FIG. 1; FIG. FIG. 1 is a first diagram showing an example of a specific display screen of a display unit 13 of FIG. 1; FIG. 2 is a second diagram showing an example of a specific display screen of the display unit 13 of FIG. 1; FIG. 3 is a third diagram showing an example of a specific display screen of the display section 13 of FIG. 1; (a) A block diagram showing an example of a configuration of a grinding machine according to another embodiment of the present invention, (b) a flow chart showing an example of an operation, and (c) a diagram showing an example of a tool information input screen is. 8 is a first diagram showing an example of a specific display screen of a display section 73 of FIG. 7; FIG. 8 is a second diagram showing an example of a specific display screen of the display section 73 of FIG. 7; FIG. 8 is a third diagram showing an example of a specific display screen of the display section 73 of FIG. 7; FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, embodiment of this invention is not limited to the following examples.

FIG. 1 is a block diagram showing (a) an example of the configuration of a grinder according to an embodiment of the present invention, and (b) to (d) a flow chart showing an example of operations.

Referring to FIG. 1( a ), grinding machine 1 includes a grinding program generation device 2 . FIG. 2 shows a specific example of the grinding machine 1 of FIG. As shown in FIG. 2(b), the grinder in FIG. 2 rotates the workpiece and brings it into contact with the grindstone to perform outer diameter machining, end face machining, straight machining, taper machining, and R machining (surface processing) can be realized. Conventionally, a computer incorporated in a grinder was used for control, and did not have sufficient processing power to generate a program, so a separate computer was used to generate the program. Therefore, as in Patent Document 1, CAD or the like that is distributed separately from the grinding machine is used to generate data for the grinding machine. At present, the grinder 1 incorporates a computer having processing power equivalent to that of a general PC or the like, and the computer incorporated in the grinder 1 can perform processing such as processing program generation. The grinding program generation device 2 can be implemented using a computer incorporated in the grinder 1 .

The grinding program generation device 2 includes a section information input unit 3, a point information storage unit 5, a machining trajectory processing unit 7, a main program generation unit 9, a processing information storage unit 11, a display unit 13, and a storage processing unit. 17 , a read processing unit 19 , and a saved information storage unit 21 .

The grinding program generator 2 generates a main program, subprograms, and drawing information.

The drawing information is for displaying the machining trajectory processed by the grinding machine 1 . A subprogram is a program for a machining shape based on a machining trajectory. In this embodiment, the grinder 1 performs machining by rotating the workpiece and bringing the cutting tool into contact with the workpiece. The machining trajectory is assumed to be on a cross section including the rotation axis of the object to be machined. A machining locus is composed of one or a plurality of sections. The start point of each section is called the "section start point", and the end point is called the "section end point".

The main program is a program that sets machining conditions and calls subprograms. The machining condition is, for example, an offset value. A workpiece is typically machined multiple times, for example, roughing and finishing. The main program is implemented by setting machining conditions and calling subprograms for each of a plurality of machining operations.

The section information input unit 3 allows the user to input information about the section start point and the section end point of each section forming the machining locus. The point information storage unit 5 stores information about the section start point and the section end point of each section.

The user inputs starting point information about the starting point of the machining locus, and sequentially designates section end point information about the section ending point of each section. Information about the section end point in a certain section becomes information about the section start point of the subsequent section. Therefore, the user can input information about the section start point and the section end point of each section by inputting the start point information regarding the start point of the machining trajectory and specifying the section end point information regarding the section end point of each section in order. .

The information about the section start point is the section start point position indicating the position of the section start point.

The information about the section end point includes the joint shape, section end point position, and chamfering. The connecting shape specifies the shape between the section start point and the section end point in the section. In this embodiment, they are a straight line (straight processing), a taper (taper processing), and an arc. The section end point position indicates the position of the section end point. If the connection shape is "straight line", specify the position of the end point of the section on the cross section. When the connecting shape is "tapered", since the angle of the surface is specified, the position of the section end point on the cross section is specified in a predetermined direction (horizontal direction, vertical direction, etc.). If the connecting shape is "arc", for example, clockwise or counterclockwise rotation, section end point and radius are specified. The chamfering process specifies the shape of the chamfering process at the end point of the section, and the user specifies not to perform chamfering process, to perform C surface process, to perform R surface process, etc. .

The machining locus processor 7 generates subprograms and drawing information. The main program generator 9 generates a main program. The processing information storage unit 11 is, for example, a main memory, and holds a main program, subprograms, and drawing information so that the processing locus processing unit 7 and the main program generation unit 9 can use them for processing.

The display unit 13 displays input information, a main program, subprograms, drawing information, and the like.

The saving processing unit 17 stores a combination of the main program, the sub-program, and the drawing information (hereinafter referred to as " (hereinafter referred to as "save information"). The reading processing unit 19 reads a combination of the main program, the sub-programs, the drawing information, and the like from the saved information storage unit 21 .

An example of the processing of the main program generator 9 will be described with reference to FIG. 1(b). The user inputs information specifying the subprogram to be called (step STM1). Subsequently, the user sets processing conditions for each of a plurality of times of processing (step STM2). The main program generator 9 generates a program for calling the identified subprogram under the machining conditions set for each number of machining (step STM3).

An example of the processing of the machining locus processor 7 will be described with reference to FIG. 1(c). In the present embodiment, drawing information for displaying the machining trajectory and a subprogram of the shape to be machined are generated in real time using information about the section start point and the section end point for each section constituting the machining trajectory. As a result, when the user inputs information about points, the user can visually check the drawing information and specifically check the subprogram.

The user inputs starting point information regarding the starting point of the machining trajectory (step STS1). The section information input unit 3 stores start point information in the point information storage unit 5 .

The section information input unit 3 stores section end point information regarding the section end point of each section in the machining trajectory edited (added, deleted, changed, etc.) by the user in the point information storage unit 5 . The machining trajectory processing unit 7 determines whether or not the section end point information has been edited (step STS2). It waits until the section end point information is edited, and when the section end point information is edited, based on the section end point information after editing, draw information and subprograms are generated in real time and stored in the processing information storage unit 11.例文帳に追加(Step STS3). The machining trajectory processing unit 7 determines whether or not to end the processing (step STS4), returns to step STS2 if not to end, and ends the processing if to end.

Referring to FIG. 1(d), the process of reading out the stored information stored in the stored information storage unit 21 by the read processing unit 19 will be described. When the user instructs to read the stored information stored in the stored information storage unit 21, the reading processing unit 19 displays a list of stored information stored in the stored information storage unit 21 (step STR1). It is determined whether or not one of the stored information has been specified (step STR2). It waits until the user specifies one of the stored information, and when one of the stored information is specified, displays the machining trajectory based on the drawing information included in the stored information (step STR3) (FIG. 6B). reference). The reading processing unit 19 determines whether or not the user has given an instruction to read out the specified stored information (step STR4). If the user specifies different stored information, the process returns to step STR3. When the user gives an instruction to read out the specified stored information, the reading processing unit 19 reads out the specified stored information to the processing information storage unit 11 (step STR5).

An example of specifying the machining trajectory will be described with reference to FIG. In this example, the workpiece is a cylinder with a height of 20 mm and a bottom diameter of 36 mm. In cross-section, the left and right faces are circles. The axis of rotation passes through the center of the circle of the cylinder. The X-axis points upwards, the Z-axis points to the right, and their origin is the center of the right side of the cross-sectional view. For simplicity, only the upper half of the cross section is shown. In the actual cross-sectional view, the lower half also displays a shape symmetrical about the axis of rotation (see FIG. 4(a)).

The starting position S ₁ of the machining locus is the center of the circle on the left side, X is 0 mm, and Z is -20 mm.

The user first inputs information about the section end point _E1 of the first section (the section including the starting point). The joint shape is "straight" and the coordinates of E ₁ are 13.8 mm in X and -20 mm in Z. Chamfering is "R" (R surface processing). As shown in FIG. 3(b), at this point, the machining locus processor 7 generates drawing information and a subprogram indicating a machining locus connecting _S1 and _E1 with a straight line.

Subsequently, the user inputs information about the section end point _E2 of the second section (the section starting from _E1 ). The joint shape is "straight" and the coordinates of E ₂ are 13.8 mm for X and -13 mm for Z. Chamfering is "C" (C face machining). As shown in FIG. 3(c), the machining trajectory processing unit 7 connects _E1 and _E2 with a straight line, and generates drawing information and a subprogram indicating a machining trajectory in which _E1 is R-machined.

Subsequently, the user inputs information about the section end point _E3 of the third section (the section starting at _E2 ). The joint shape is "straight" and the coordinates of E ₃ are 9 mm for X and -13 mm for Z. Chamfering is "none". As shown in FIG. 3D, the machining trajectory processing unit 7 connects _E2 and _E3 with a straight line, and generates drawing information and a subprogram indicating a machining trajectory obtained by machining _E2 on the C surface.

Subsequently, the user inputs information about the section end point _E6 of the fourth section (the section starting at _E3 ). The joint shape is a "straight line" and the coordinates of _E6 are 9 mm for X and 0 mm for Z. Chamfering is "none". As shown in FIG. 3(e), the machining trajectory processing unit 7 generates drawing information and a subprogram indicating a machining trajectory connecting _E3 and _E6 with a straight line.

Next, the user changes the information about the section end point of order "3" to the information about the section end point _E4 . The tether shape is an "arc" with a radius of 4.8 mm, clockwise, and the coordinates of _E4 are 9 mm in X and -8.2 mm in Z. The machining locus processor 7 connects _E2 and _E4 with an arc, and connects _E4 and _E6 with a straight line. However, _E2 cannot perform C-face machining. Therefore, in the display unit 13, an error is displayed regarding the designation of the chamfering processing in the information regarding the section end point in the order "2". As shown in FIG. 3(f), when the user changes the chamfering in order "2" to "none", the machining trajectory processing unit 7 changes S, E as shown in FIG. 3(g). ₁ , E ₂ , E ₄ and E ₆ in order to generate drawing information and a subprogram indicating a machining trajectory.

Next, as shown in FIG. 3(h), it is assumed that the user changes the connecting shape to "taper" in the information regarding the section end point of order "3". Here, it is assumed that the taper angle is 40° clockwise from the Z-axis, and the section end point position is specified with an X coordinate of 9 mm. The machining locus processor 7 identifies the section end point _E5 from the taper angle and the X coordinate. Then, connect _E2 and _E5 with a straight line, and connect _E5 and _E6 with a straight line. As shown in FIG. 3(i), the machining trajectory processing unit 7 generates drawing information and a subprogram indicating a machining trajectory passing through S, E ₁ , E ₂ , E ₅ and E ₆ in order.

4, 5 and 6 show examples of display screens of the display unit 13 in a specific system. This is displayed on the display screen 41 in FIG. Referring to FIG. 4A, when the user designates "file" (reference numeral 51), processing for generating a main program, subprograms and drawing information is performed.

When the user designates "file" (reference numeral 51) and "creates" (reference numeral 57), information is input to either the main program (MAIN) or the subprogram (SUB) at reference numeral 55. or FIG. 4 shows the case where the subprogram is indicated, and FIG. 6 shows the case where the main program is indicated. If "edit" is instructed, the program can be edited, and if "input/output" is instructed, the program can be saved or read in an existing format.

The user identifies the shape of the object to be processed and identifies the starting point position. Then, the information about the section end point is identified in order. Here, the shape (connection shape) and corner (chamfering) can be selected from a pull-down menu. FIG. 5 shows items that can be selected from a pull-down menu, and columns that can and cannot be input corresponding to each item. When the shape (connecting shape) is "straight line", the X and Z coordinates of the end point of the section are input as shown in FIG. 5(a). In the case of "taper", as shown in Figs. 5(b) and (c), the "angle" and the X or Z coordinate of the section end point are input. In the case of "arc", select clockwise (CW) or counterclockwise (CCW) as shown in Fig. 5 (d) and (e), and enter the X and Z coordinates of the end point of the section and "radius" do. Also, in this example, the size of chamfering can be designated as the "corner amount". A "feed rate" can be input for each section.

The user can select either drawing information (PICTURE PREVIEW) or subprogram (PROGRAM PREVIEW) to be displayed in real time as the section end point is input (reference numeral 59). Drawing information is displayed in FIG. 4(a), and a subprogram is displayed in FIG. 4(b).

An example of a display image relating to the main program will be described with reference to FIG. When the user designates the main program (reference numeral 55), the user specifies the file name, main program number, and subprogram number of the saved information. In FIG. 6A, the file name is specified as "TEST_IN001", main program number "1", and subprogram number "2". Then, the machining conditions are set according to the number of times of machining. In FIG. 6A, the cut, initial position, and final cut are set for each number of times of machining in the X direction (upward in the drawing) and the Z direction (rightward in the drawing).

Referring to FIG. 6(b), when the user gives an instruction to read the stored information, a list of stored information is displayed. When the user specifies the file "TEST_IN002", the drawing information saved in this file is displayed. As a result, the user can check the cross-sectional shape before reading out the entire file without the reading processing unit 19 performing specific processing related to the machining locus. The user confirms the displayed cross-sectional shape and gives an instruction to read out the entire file.

FIG. 7 shows (a) a block diagram showing an example of the configuration of a grinding machine according to another embodiment of the present invention, (b) a flow chart showing an example of operation, and (c) an example of a tool information input screen. FIG. 4 is a diagram showing;

Referring to FIG. 7(a), a grinding machine 61 includes a grinding program processing device 62 (an example of a "grinding program processing device" in the claims of the present application). The grinding program processing device 62 includes a section information input section 63 (an example of the "section information input section" in the claims of the present application), a point information storage section 65, and a machining trajectory processing section 67 (the "machining trajectory processing section" in the claims of the present application). ”), a main program generation unit 69, a processing information storage unit 71, a display unit 73 (an example of the “display means” in the claims of the present application), and a save processing unit 77 (an example of the “save processing unit” in the claims of the present application). ), a readout processing unit 79 (an example of a “readout processing unit” in the claims of the present application), and a saved information storage unit 81 .

Section information input unit 63, point information storage unit 65, machining locus processing unit 67, main program generation unit 69, processing information storage unit 71, display unit 73, storage processing unit 77, reading processing unit 79, 1(a), the processing locus processing unit 7, the main program generation unit 9, the processing information storage unit 11, and the display unit 13. , the storage processing unit 17 , the reading processing unit 19 , and the storage information storage unit 21 .

Further, the machining trajectory processing unit 67 stores, for example, an analysis target program for realizing machining processing in the saved information storage unit, and analyzes this analysis target program to specify the machining trajectory by the analysis target program. can also In this embodiment, as in the previous embodiment, the machining locus processing unit 67 uses the user-inputted information specifying the starting point position, joint shape, section end point, and chamfering ("machining locus" in the claims of the present application). An example of "specific information") can specify the machining trajectory. The machining trajectory processing unit 67 can also analyze the analysis target program to identify the machining trajectory. Further, the machining trajectory can be determined by both, for example by analyzing an analysis program and modifying it in response to user input.

In this embodiment, the grinding program processing device 62 further includes a tool information setting unit 83 (an example of the "tool information setting unit" in the claims of the present application), a tool information storage unit 85, and a tool information display unit 87 (the An example of the "tool information display section" in the section).

FIG. 7B is a flow chart showing an example of the operation of the tool information setting section 83, the tool information storage section 85 and the tool information display section 87. As shown in FIG. First, the tool information setting unit 83 sets initial values of tools (step STK1).

It is determined whether or not tool information has been set by the user (step STK2). FIG. 7(c) is an example of a setting screen by the user. If not set, proceed to step STK4. If set, the tool information setting unit 83 sets the information of the set tool in the tool information storage unit 85 (step STK3), and proceeds to step STK4. Here, it is assumed that the tool is used for grinding and has a trapezoidal shape. Five pieces of tool information, A, B, C, D and E, can be set. For each tool, the length (H) and height (W) of the bottom of the trapezoidal shape, the angle R of one end of the bottom, and the inclination θ of the tool can be set as the shape of each tool. . A combination of H, W, R and θ is called tool information.

At step STK4, the tool information setting section 83 determines whether or not the tool selected by the user has been changed. The tool information storage unit 85 stores five types of tools A, B, C, D and E. In this example, one program uses one type of tool. In step STK4, it is determined whether or not the tool selected by the user has been changed, for example, by changing from the state in which the user selected tool A to the state in which tool B was selected. If changed, the tool is changed in step STK5 and the process proceeds to step STK6. If not changed, proceed to step STK6.

At step STK6, the tool information display section 87 determines whether or not to display the tool on the display section 73. FIG. If the tool is not to be displayed, return to step STK2. If the tool is to be displayed, it is determined whether or not only the specific section is to be displayed (step STK7). If only the specific section is to be displayed, the tool is displayed at the end position of the specific section specified by the user (step STK8), and the process returns to step STK2. Otherwise, the tools are displayed at the end points of all sections (step STK9), and the process returns to step STK2.

For example, in the case of program creation processing as shown in FIG. 8, the shape of the tool is displayed in at least one section using the program generation information for the specified machining locus. Further, for example, in the case of a drawing process from a program as shown in FIG. 10, the shape of the tool is displayed in the section corresponding to at least one block information of the program. The display position in the section is, for example, the end point of the section. For example, FIG. 7(d) corresponds to FIG. 3(c). In FIG. 7(d), points _E1a and _E1b are the start and end points of chamfering for point _E1 , respectively. Machining sections P ₁ , P ₂ and P ₃ are sections in which point S to point E _1a , point E _1a to point E _1b , and point E _1b to E ₂ are machined, respectively. In FIG. 7(d), the end position _E1 of the section is different from the processed section _P2 by chamfering. In such a case, the tool is S in the program creation process, a point calculated from points E ₁ and E ₂ (for example, E _1b in FIG. 7(d)), and all of E ₂ , Alternatively, it is displayed in the selected section. On the other hand, in the case of the drawing process from the program, since it consists of three program instructions for machining the machining zones _P1 , _P2 and _P3 , all of S, _E1a , _E1b and _E2 , Alternatively, it is displayed in the selected section.

FIG. 8 shows an example of a screen displaying tools in the program creation process (see FIG. 4). In this example, the tool is displayed at the end point position for the section of "9" blocks.

When the user designates an "edit" button 101, the screen shown in FIG. 7(c) is displayed and the tool information is set. Item 103 is for specifying a tool to be displayed by the user. The tool information display section 87 displays the tool specified by the item 103. FIG. The user specifies the “9” block by specifying the row of item 105 . In addition, the user can specify left or right with respect to the machining direction by selecting either "G41" or "G42" for "correction of nose R" in item 107. FIG. In this embodiment, the tool is displayed on either the left side or the right side according to the designation of "nose R correction", so the user can clearly grasp whether to machine the inside or the outside. can.

Items 109 and 111 of "tool drawing" are for the user to specify whether or not to display tools. If you do not want to display tools, do not check any check boxes. To display only the specified block, check the check box of item 109 "specified block" and uncheck the check box of item 111 "all blocks". If the tool is to be displayed in all sections, check the check box of item 111 "all blocks".

In FIG. 8, the selected tool is "E", "designated blocks" is checked, and "all blocks" is not checked. "9" block is selected as the specified block. Also, "G42" is specified for the nose R correction, and the tool position is on the right side with respect to the machining direction.

In the portion 113 where the machining trajectory is displayed, "*" indicates the starting position of machining. A section 115 corresponding to the "9" blocks selected in the machining locus is displayed in a different color, and a tool 117 is displayed on the right side of the machining direction at the position of the section end point.

FIG. 9 shows an example of tool display. FIG. 9(a) shows the tool A at the end position of a specific section, as in FIG. FIG. 9(b) shows the tool A at the end position of all sections. FIG. 9(c) shows an example in which the tool is changed, and the tool D is displayed at the end point position of all sections. FIG. 9(d) is an enlarged view of the tool E displayed at the end point position of a specific section when machining the inner side for different machining trajectories. According to this embodiment, since the tool is displayed in addition to the machining locus, it is possible to easily grasp the presence or absence of interference.

FIG. 10 shows an example of a screen displaying tools in the process of drawing a machining locus from a program. In this embodiment, the machining trajectory processor 67 can draw a machining trajectory from a program. An example of displaying a tool along with this machining locus will be shown.

FIG. 10(a) shows an example in which the "23" block is selected and highlighted, and the tool A selected by the user is drawn at the end position of the section.

FIG. 10(b) shows an example in which the "23" block is selected and emphasized, the check box for "all blocks" in tool drawing is checked, and the tool A is displayed at the end point position of all sections. show.

1, 61 grinding machine 2 grinding program generation device 3, 63 section information input unit 5, 65 point information storage unit 7, 67 machining trajectory processing unit 9, 69 main program generation unit 11, 71 processing information storage 13, 73 display unit 17, 77 saving processing unit 19, 79 reading processing unit 21, 81 saving information storage unit 62 grinding program processing device 83 tool information setting unit 85 tool information storage unit 87 tool Information display

Claims (7)

A grinding program generation device for generating a program for a grinding machine,
Equipped with a section information input unit and a machining trajectory processing unit,
The section information input unit includes starting point information for specifying the starting point position of the machining trajectory, section end point positions for specifying section end points in one or a plurality of sections constituting the machining trajectory, and the section start point and section end point in each section. Connecting shape information specifying the shape of the interval and chamfering information specifying whether or not to perform chamfering at the end point of each section and the shape of the chamfering if performed are input,
In the machining trajectory,
The starting point position of the first section is the starting point position of the machining trajectory,
The start point position of the second and subsequent sections is the section end point position of the immediately preceding section,
In the machining trajectory,
Each section that does not include the end point of the machining locus has a shape specified by the connecting shape information of the section, and is a shape specified by the chamfering information at the end point of the section,
The section including the end point of the machining trajectory has a shape specified by the connecting shape information of the section,
The machining trajectory processing unit generates drawing information for displaying the machining trajectory when at least a part of the section end point position , the connecting shape information, and the chamfering processing information is added, deleted, or changed. and a grinding program generating device for generating a subprogram for realizing machining of the machining locus. The machining trajectory processing unit identifies an unrealizable section when a subprogram for realizing machining of the machining trajectory cannot be generated, and
The machining trajectory includes a second section and a first section that is a section immediately preceding the starting point in the machining trajectory,
When a curve shape is specified as the connection shape information of the second section, the machining trajectory processing unit
If the chamfering processing information for the first section indicates that chamfering is not to be performed, the chamfering processing information for the first section can be realized,
2. The grinding program generating apparatus according to claim 1, wherein if chamfering is to be performed as the chamfering information for the first section, the chamfering information for the first section is specified as being unrealizable. . a main program generator that sets machining conditions and generates a main program that calls the subprogram;
a storage processing unit that stores a combination of the main program, the subprogram, and the drawing information;
3. The grinding program generating apparatus according to claim 1, further comprising a reading processing unit that reads a combination of said main program, said sub-program and said drawing information. The display means displays when the section end point position is input to the section information input unit when at least a part of the section end point position, the connecting shape information and the chamfering information is added, deleted or changed. 4. The grinding program generator according to claim 1, wherein at least one of said drawing information and said subprogram is displayed. a tool information setting unit for setting tool information;
The display means comprises a tool information display section for displaying the shape of the tool specified by the tool information for part or all of the machining locus,
5. The grinding program generation device according to claim 1 , wherein said tool information display unit displays the shape of said tool on the left or right side with respect to the machining direction on said machining locus. 6. The grinding program generation device according to claim 5, wherein said tool information display unit displays the shape of said tool at the end point of at least one section. A grinding program generation method for generating a program for a grinding machine, comprising:
The grinding program generation device includes a section information input unit, a machining trajectory processing unit, and a main program generation unit,
an input step of inputting information about each section of the machining trajectory into the section information input unit;
The machining trajectory processing unit generates a subprogram for performing machining processing using the machining trajectory and drawing information for displaying the machining trajectory, and the main program generating unit sets machining conditions. including a program generation step of generating a main program that calls the subprogram;
In the input step, the section information input unit inputs start point information specifying a starting point position of a machining trajectory, section end point positions specifying section end points in one or more sections constituting the machining trajectory, and section start points in each section. and the section end point, and chamfering information that specifies whether or not to perform chamfering at each section end point and the shape of the chamfering if performed,
In the machining trajectory,
The starting point position of the first section is the starting point position of the machining trajectory,
The start point position of the second and subsequent sections is the section end point position of the immediately preceding section,
In the machining trajectory,
Each section that does not include the end point of the machining locus has a shape specified by the connecting shape information of the section, and is a shape specified by the chamfering information at the end point of the section,
The section including the end point of the machining trajectory has a shape specified by the connecting shape information of the section,
In the program generation step, the machining trajectory processing unit displays the machining trajectory when at least part of the section end point position, the connecting shape information, and the chamfering information is added, deleted, or changed. and generating a subprogram for realizing machining of the machining locus .

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