JPH03123977A - Parts position correction system in metallic mold design - Google Patents

Abstract

PURPOSE:To realize the smooth design work of a metallic mold by determining the arranging position of parts by setting an origin at the corner of a metallic mold plate or the representative point of the parts arranged beforehand, and designating a relative position from the origin. CONSTITUTION:When an operator picks up one corner of a core plate 3 through proper operation, a CPU 10 sets and stores the picked up corner P1 as the origin, and after displaying numerically the present position of the origin P1 on a CRT 14, it is turned into a standby state to wait for the arranging position of a guide pin 8 to be inputted as the relative position from the origin P1. During this, the operator inputs a distance component xp1 in X-axis direction and the distance component yp1 in Y-axis direction to be the relative position from the origin P1 from a keyboard 13. Thus, when the setting and storing processing of the origin P1 and the input processing of the components xp1, yp1 are executed, the CPU 10 generates and stores fitting data in respect of the arranging position of the pin 8, and simultaneously, it graphic-displays the arranged state of it on the CRT 14.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a method for correcting the position of parts in mold design by displaying a mold plate on the graphic display of a conventional CAD system and calling up pre-registered mold parts. A mold design method is already known in which a mold is designed by specifying a position on a coordinate system set on a mold plate to designate the placement position of the called part. .

Problems to be Solved by the Invention In general, when designing a mold, it is often necessary to change the plate size or change the layout of mold parts due to the addition of water holes to various plates, changes in the number of holes, etc. Guide pins, sleeves, bolts that fix the fixed side mounting plate and the cavity plate, bolts that fix the movable side mounting plate and the core plate, etc.
Unless there is an extreme change in plate size, the distance from the four corners of each plate is constant.

However, in the normal mold design method using a CAD system, the casting position of parts is determined by specifying the position on the coordinate system set on the mold plate, so it is difficult to change the plate size, such as enlarging or reducing. or extension in a specific direction (
Even if the size of the plate changes due to stretching, etc., the placement position of each of the above parts will be uniquely determined by the position on the coordinate system set in advance on the mold plate. , resulting in a position that is disproportionate to the changed plate size. Conventionally, in order to change the placement position of each of the above parts in response to a change in plate size, by specifying the position on the coordinate system according to the changed plate size, the position from the four corners of each plate can be changed. This method has disadvantages in that it is necessary to keep the distance constant and to respecify the placement position of the parts, making coordinate calculations complicated and poor workability.

Furthermore, even when changing the placement position of parts that have a certain mutual relationship such as guide pins and sleeves, the placement position must be specified again for each part.
It has the disadvantage that input operations are troublesome.

Therefore, an object of the present invention is to eliminate these drawbacks of the prior art, and to smoothly change the plate size or the arrangement position of parts having a certain mutual relationship without requiring troublesome calculations or input operations. The object of the present invention is to provide a part position correction method in mold design that allows design work to be advanced.

Means for Solving the Problems The component position correction method of the present invention sets a corner of a mold plate or a representative point of a component previously arranged on the plate as a reference point, and specifies a relative position from the reference point. In addition, if the position of the reference point changes due to a change in the plate size or a change in the placement position of a pre-placed part, the position of the reference point will be determined. , the above objective was achieved by also changing the position of the parts positioned relative to the reference point.

Operation Set the corner of the mold plate displayed on the graphic display of the CAD system or the representative point of the part placed on the plate in advance as a reference point, and specify the relative position from the reference point to move the part. Determine the installation location.

If the position of the above reference point changes due to a change in plate size or a change in the placement position of a pre-arranged part, the position of the part positioned with respect to the reference point due to the movement of the reference point. change automatically.

Example Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the main parts of an automatic programming device as an example of a CAD system implementing the present invention, in which 10 is a processor (hereinafter referred to as CPU), and 11 stores a control program for the automatic programming device. Did R
OM, 12 is M to R where the system program and various data loaded from the floppy disk 17 are stored.
113 is a keyboard, 14 is a graphic display (hereinafter referred to as CRT), 15 is a tablet device, 16
is a disk controller, 17 is a floppy disk,
18 is a plotter for outputting created drawings, 19 is a printer, and each of these elements is connected by a bus 20.

The tablet device 15 has a screen corresponding area 15a and a menu table 15b, and by moving the tablet cursor 15c within the screen corresponding area 15a and moving the figure cursor on the CRT 14, the figure displayed on the CRT 14 can be changed. Various menu items can be picked by clicking or by moving the tablet cursor 15c on the menu table 15b.

The configuration of the automatic programming device is well known and the details will be omitted, but the floppy disk 17 contains various system programs similar to conventional ones and data on mold parts registered in advance, i.e., the shape of the mold parts. In addition to various data such as data, dimensions, the plate number on which the mold part is to be attached, and the mounting direction, in this example, in particular, a reference point is set and the relative position from the reference point is specified to mount the part. "Relative position specification processing" to determine the placement position, and automatic part positioning relative to the reference point according to changes in plate size or changes in the placement position of pre-placed parts A program for carrying out "component position correction processing" to change the location is stored.

The component position correction method of this embodiment will be explained below with reference to a flowchart (Figure 2) outlining the "relative position designation process" and a flowchart (Figure 3) outlining the "component position correction process". do.

When starting the design of the mold plate, the operator selects the plate design item from the menu table 15b with the tablet cursor 15c, sets the plate data in the same manner as before, and displays the data on the CRT 14 based on the set data. A plan perspective view and a side view of the created mold plate are displayed.

In this example, as shown in FIG. 7, a normal mold base consisting of a fixed side mounting plate, a cavity plate, a core plate, a back plate, a first spacer, a second spacer, an ejector plate, and a movable side mounting plate is used. The design shall be made to arrange the mold parts against
As an example, a case will be explained in which a guide pin 8 and a spool 9 are arranged. Incidentally, the plate numbers of each of the above plates are defined in advance as shown in FIG. 7.

The guide pin 8 is normally arranged at a constant distance from the corner position of the core plate 3 regardless of the plate size.

Therefore, when arranging the guide pin 8, the operator first sets the corner of the core plate as a reference point, and then specifies the relative position from the reference point to determine the arrangement position of the guide pin 8. Using the tablet cursor 15c, the user picks the item ``Part Selection'' from the menu table 15b to start the ``Relative Position Designation Process'' (see FIG. 2).

The CPU 10 that has started the "relative position designation process" displays the mold component name registered in advance on the CRT 14 and enters a standby state waiting for selection of the mold component name (step 5101).
), the operator moves the tablet cursor 15c within the screen corresponding area 15a to move the graphic cursor on the CRT 14, positions the graphic cursor on the "Guide Pin" item, and picks it to select the name of the mold part. Select "Guide Pin". The selection of the mold part name is recognized by the CPU 10 in step 5101 above, but if the selection operation is inappropriate, for example, if the pick operation is performed with the tablet cursor 15c protruding from the screen corresponding area 15a, etc. This operation is detected as an error (step 5102), and the process returns to step 5101 to enter a standby state waiting for the operator to try again.

If the operator selects the "guide pin" item through an appropriate selection operation, the CPU 10 proceeds to step 5103.
The operator enters a standby state waiting for manual input of the item number of the guide pin, so the operator inputs the item number corresponding to the registration data of the desired guide pin from the keyboard 13 to cause the CPUI O to identify the guide pin. . That is, at this stage, the shape data and dimensions of the guide pin 8, the plate number to which it is to be attached, the direction of its attachment, etc. are specified. Note that if the input of the item number is inappropriate, for example, if an unregistered item number is entered manually, this operation will be detected as an error (step 510).
4) The process returns to step 5103 again and enters a standby state in which it waits for the operator to try joining.

Once the operator has entered the appropriate item number, the CPU
l0 displays a message indicating that you should enter a plate number or pick a pre-placed part in order to set a reference point, and waits for you to enter a plate number or pick a pre-placed part. state (step S l 05).

In this case, since it is necessary to set the corner of the core plate as a reference point, the operator inputs the plate number "3" of the core plate from the keyboard 13. Note that if an unregistered plate number is input, this input operation is detected as an error (step 5106), and the process returns to step 5105 to enter a standby state waiting for the operator to try again.

Once the operator has entered the appropriate plate number, C
The PU 10 moves to step 107 and performs the above step 51.
It is determined whether the input process in step 05 was related to inputting a plate number or to picking a figure of a pre-arranged part, but in this case, since it was inputting a plate number, the process moves to step 5108. A standby state is entered waiting for any corner of the core plate to be picked by the graphic cursor. During this time, the operator moves the tablet cursor 15c to the screen corresponding area 15a.
the graphic cursor on the CRT 14, position the graphic cursor at one of the corners of the core plate, and pick the corner to be the reference point. Note that if the pick operation is inappropriate, for example, if the pick operation is performed with the tablet cursor 15c protruding from the screen corresponding area 15a, this operation will be detected as an error (step 5109), and the step will be repeated. The process returns to step 5108 and enters a standby state in which it waits for the operator to try the connection.

When the operator picks any one of the corners of the core plate by an appropriate operation, the CPU 10 sets and stores the picked corner p1 as a reference point in step 51.
10) After displaying the current position of the reference point p1 numerically on the CRT 14, the arrangement position of the guide pin 8 is set to the reference point p1.
It enters a standby state waiting for input as a relative position from (step S112).

During this time, the operator calculates the distance component xpl in the X-axis direction and the distance component ypl in the Y-axis direction, which are the relative positions from the reference point p1.
is input from the keyboard 13.

As described above, the setting storage process for the reference point p1 and the distance component xp in the X-axis direction, which is the relative position from the reference point p1, are performed.
When input processing of the distance component ypl in the Y-axis direction is performed, the CPU 1O creates and stores installation data regarding the installation position of the designated part, that is, the guide pin 8 specified in step 5103, and ( Step 5113), the arrangement state is graphically displayed on the CRT 14 (Step S
114).

FIG. 4 is a diagram showing the display state of the CRT 14 at the current stage, in which the upper right corner of the core plate having plate number "3" is set and stored as the reference point p1, and the reference point p1
Current absolute position Bxl (=100), Byl (
= 100), and the relative mounting of the guide pin 8 with respect to the reference point p1 is the distance component xpl of the position in the X-axis direction.
(=-20).

The distance component ypl (=-20) in the Y-axis direction is numerically displayed, and a graphic display based on the registered data of the guide pin 8 is drawn at the position of the relative attachment.

Further, since the sleeve 9 attached to the cavity plate is fitted with the guide pin 8 attached to the core plate, the mutual relationship between the sleeve 9 and the guide pin 8 is always constant.

Therefore, when arranging the sleeve 9, the operator sets the representative point of the guide pin 8 as a reference point and specifies the relative position from the reference point to determine the arrangement position of the sleeve 9. Then, the "relative position designation process" is started.

Regarding the processing from step 8101 to step 5104, please note that the mold part names and item numbers are different, and that the guide pins 8, which have been placed on the core plate in advance, are displayed on the CRT 14 together with each plate. Except for this, the explanation is omitted since it is the same as the case of the guide pin 8 described above.

In the process from step 8101 to step 5104, the CPU 10, which has specified the shape data and dimensions of the sleeve 9, the plate number to which it should be attached, the direction of attachment, etc., then inputs the plate number or pre-specifies the plate number in order to set the reference point. A message to the effect that the pick of the placed parts should be executed is displayed, and the system enters a standby state in which it waits for the input of the plate number or the graphic pick of the previously placed parts (step 5105).

In this case, it is necessary to set the representative point of the guide pin 8 as the reference point, so the operator should move the tablet cursor 1
5c within the screen corresponding area 15a to move the graphic cursor on the CRT 14, position the graphic cursor near the guide pin 8, and pick the guide pin 8.

Note that the tablet cursor 15c is located in the screen corresponding area 15a.
If a pick operation is performed in a state where the object is out of line, this operation is detected as an error (step 8106),
The process returns to step 5105 again and enters a standby state in which it waits for the operator to try joining.

The operator selects the guide pin 8 which is a pre-arranged part.
, the CPU 10 moves to step 107 and determines whether the input process in step 5105 was related to inputting a plate number or picking a pre-arranged part. If so, step 5111 because it is a part pick.
The representative point p2 of the guide pin 8 is set and memorized as a reference point, and the current absolute position of the reference point p2 is displayed on the CRT.
After displaying the numerical value on 14, the system enters a standby state in which it waits for the position of the sleeve 9 to be input as a relative position from the reference point p2 (step 5l12).

During this time, the operator calculates the distance component xp2.x in the X-axis direction, which is the relative position from the reference point p2. Distance component yp2 in the Y-axis direction
is input from the keyboard 13.

As described above, the setting storage process for the reference point p2 and the distance component xp in the X-axis direction, which is the relative position from the reference point p2, are performed.
2. When the input processing of the distance component yp2 in the Y-axis direction is performed, the CPU 10 creates and stores installation data regarding the installation position of the specified part, that is, the sleeve 9 specified in step 5103 (step 5113). , the arrangement status is graphically displayed on the CRT 14 (step 5l).
14).

FIG. 5 is a diagram showing the display state of the CRT 14 at the current stage, in which the representative point of the guide pin 8 is set and stored as a reference point p2, and the current absolute position Bx2 (=
80), By2 (=80), and reference point p2
The relative mounting of the sleeve 9 based on is the distance component xp2 (=0) in the X-axis direction and the distance component yp2 in the Y-axis direction.
(=O) is displayed numerically, and a graphical representation based on the registered data of the sleeve 9 is drawn at the position of the relative attachment.

The plate number of the plate to which the sleeve 9 is to be attached is "2", that is, a cavity plate, and this data is stored in advance as registration data of the sleeve 9.

With the above processing, the guide pin 8 is attached to the corner p of the core plate.
1 as a reference point, and the sleeve 9 is arranged in a relatively positioned position on the core plate with reference point p2 of the guide pin 8 as a reference point. will be established.

When changing the plate size or changing the layout of mold parts for a mold plate designed in this way, the operator first moves the tablet cursor 15
Select the "Settings" item or the "Parts movement" item in "Plate design" from the menu table 15b using c, start the "Parts position correction process" (see Figure 3), and use the same method as before. Step 5201: Execute input for changing plate size and moving part position.
), the CPU 10 executes the process corresponding to this input (step 5202), and displays the execution result on the CRT 14 (step 5203).

Hereinafter, a case will be described taking as an example a case in which the size of each mold plate is extended (stretched) in the horizontal direction in the plane perspective view shown in FIGS. 4 and 5.

The CPU 10, which graphically displayed the changed plate shape on the CRT 14 through the process in step 5203, then determines whether there is a reference point that has been moved due to changes in the plate size or part position (step 520).
4) In this case, since the reference point p1 set at the corner of the core plate has moved due to the change in plate size, the process further proceeds to step 5205, where the total number PM of moved reference points is determined and stored. do. In this case, since the only reference point that has moved is pl, the total number of reference points PM is "1".
is memorized.

Next, the CPU 10 sets the index i that specifies the reference point to 0 (step 8206), and determines whether the value of the index i matches the value of the total number of reference points PM (step 5207). Since i=0°PM=1, the two values do not match.

Therefore, the CPU 10 increments the value of the index i by 1 (step 5208) and calculates the total number of parts arranged using the reference point p1 specified by the index i as the reference point. Since the only part arranged as a reference point is the guide pin 8, "1" is stored as the total number of parts PN (step S20
9).

Next, the CPU 10 sets 0 to the index j that specifies the part placed corresponding to the reference point p1 (step 5210).
), and increments the value of index j by 1 (step 52
11) Data of the guide pin 8 specified by the index j (=1), that is, the distance component xpl in the X-axis direction from the reference point p1 set and stored by the above-mentioned "relative position designation process".

The distance component ypl in the Y-axis direction and the reference point p moved by the plate size change processing in step 5202
Based on the current position of reference point p1, set the guide pin so that the distance component in the X-axis direction is xpl (=-20) and the distance component in the Y-axis direction is ypl (=-20) with respect to the current position of reference point p1. 8 is changed and stored (step 5212), and the arrangement state is graphically displayed on the CRT 14 (step 5213). Therefore, regardless of changes in the plate size, the guide pin 8 is always arranged so that the distance component in the X-axis direction from the current position of the reference point p1, which is the corner of the core plate, is xpl (=-20), and the distance component in the Y-axis direction is It will be arranged so that the distance component of is ypl (=-20).

The CPU 10 that executed the display process in step 5213
Next, it is determined whether or not the value of the index j for identifying a component reaches the total number PN of components arranged with the reference point p1 specified by the index i as the reference point, that is, the number of components arranged with the reference point p1 as the reference point is determined. It is determined whether or not the process of changing the placement position due to the movement of the reference point p1 has been executed for all the parts that have been moved (step 52L4). In this case, j=1. Since PN=1, it is assumed that the process of changing the arrangement position due to the movement of the reference point p1 has been executed for all parts arranged with the reference point p1 as the reference point, and the CPU 10 again,
The process returns to step 5207.

Note that if there are two or more parts arranged with the reference point p1 as the reference point, that is, if PN≧2, step 821
The processes from step 1 to step 5214 are repeatedly executed until j=PN, and the positions of all the parts arranged with the reference point p1 as the reference point are changed in accordance with the movement of the reference point p1. That will happen.

CPU10 returns to step 5207 and determines whether the value of the index i that specifies the reference points has reached the total number PM of reference points.Currently, since i=PM (both are 1), the CPU 10 returns to step 5205. It is assumed that the component arrangement positions have already been changed for all the detected reference points, that is, all the reference points moved in the process of step 5202, and the process returns to step 5204 again. Note that step 52
If there are multiple reference points moved in the process of 02, that is,
If PM≧2, steps 8208 to 52
14 is repeatedly executed until i=PM,
For all the reference points moved in the process of step 5202, the process of changing the casting position of the parts arranged corresponding to these reference points is executed.

The CPU 10 that has returned to step 5204 determines whether or not there is a newly moved reference point, that is, in step 5212.
It is determined whether a reference point was set at the representative point of the component whose position was changed in the arrangement position change process, but in this case, the guide pin 8 whose arrangement position was changed has a reference point p2. Since it has been set, the process further proceeds to step 5205, where the total number PM of newly moved reference points is determined and stored.

In this case, since the only reference point that has moved is p2, "1" is stored as the total number PM of reference points.

Then, in the same manner as described above, the CPU 10 sets the index i for specifying the reference point to 0 (step 5206), and determines whether the value of the index i matches the value of the total number PM of reference points. (step 5207), currently i=Q, PM
= 1, so the two values do not match.

Therefore, the CPU 10 increments the value of the index i by 1 (step 5208) and calculates the total number of parts arranged using the reference point p2 specified by the index i as the reference point. Since the only part arranged as a reference point is the sleeve 9, "1" is stored as the total number of parts PN (step S209).
).

Next, in step 521, the CPUI O sets the index j that specifies the part placed corresponding to the reference point p2 to 0.
0), increment the value of index j by 1 (step 5
211), the data of the sleeve 9 specified by the index j (=1), that is, the distance component in the X-axis direction from the reference point p2 set and stored by the above "relative position designation process" XI) 2° Y-axis Based on the distance component yp2 in the direction and the current position of the reference point p2 moved by the process of changing the arrangement position of the guide pin 8 in the previous step 5211,
The distance component in the X-axis direction with respect to the current position of reference point p2 is xp
2 (-〇), the distance component in the Y-axis direction is yp2 (=0)
The arrangement position of the sleeve 9 is changed and stored (step 5212), and the arrangement state is changed to CR.
A graphic is displayed on T14 (step 5213). Therefore, regardless of the change in the arrangement position of the guide pin 8, the arrangement position of the sleeve 9 is always the same as that of the guide pin 8, as shown in FIG. From the current position of the reference point p2, which is the representative point of the pin 8, the distance component in the X-axis direction is xp2 (=0) and the distance component in the Y-axis direction is yp2 (=O), that is, the guide pin 8 and It will be placed in a position where it will fit.

The CPU 10 that executed the display process in step 5213
Next, it is determined whether or not the value of the index j for identifying a component has reached the total number PH of components arranged with the reference point p2 specified by the index i as the reference point, that is, the number of components arranged with the reference point p2 as the reference point. It is determined whether or not the process of changing the placement position due to the movement of the reference point p2 has been executed for all the parts that have been moved (step 5214). In this case, j=1. Since PN=1, it is assumed that the process of changing the arrangement position due to the movement of the reference point p2 has been executed for all parts arranged with the reference point p2 as the reference point, and the CPU 10 again,
The process returns to step 5207.

Note that, as in the case of the casting position change process using the reference point p1 as the reference point, if there are two or more parts arranged using the reference point p2 as the reference point, that is, if PN≧2, step 8211 The processing from step 5214 to step 5214 is repeatedly executed until j=PN, and the arrangement position change processing is executed for all the parts arranged using the reference point p2 as the reference point.

The CPU 10 that has returned to step 5207 determines whether the value of the index i that specifies the reference points has reached the total number of reference points PM, but since currently i = PM (both are 1), a new movement is required. Then, it is assumed that changes in the placement positions of parts have already been performed for all of the reference points detected in the previous process of step 5205, and the process returns to step 3204 again. Note that if there are multiple reference points detected in the previous process of step 5205, that is, if PM≧2, the processes from step 5208 to step 5214 are repeatedly executed until i = PM, and the previous For all the reference points detected in the process of step 5205, the process of changing the arrangement position of the parts arranged corresponding to these reference points is executed.

After returning to step 5204, the CPU 10 determines whether there is a newly moved reference point, that is, the previous step 5.
It is determined whether or not a reference point has been set at the representative point of the component whose position has been changed in the arrangement position change process of 212. In this case, the reference point is set at the sleeve 9 whose arrangement position has been changed. Therefore, there are no new reference points that have been moved, and CPU10 has already changed the placement position of the parts for all the reference points that have been moved due to the change in plate size. All processing related to "component position correction processing" is terminated.

As mentioned above, the "component position correction processing" of this embodiment
, changes in plate size and parts position (
In step 5202), it is determined whether or not there are reference points to be moved (step 5204), and if there are reference points to be moved, the number is determined (
Step 5205), the placement positions of all the parts placed corresponding to each of the moved reference points are changed (
Steps 8207 to 5214), if the position of the reference point is changed due to a change in the arrangement position of the component, the number of reference points that are to be moved is determined again (step 5205), and the number of reference points that are to be moved is determined again. Since the arrangement positions of all the parts arranged corresponding to each of the determined reference points are changed (steps 5207 to 5214),
Even if a part is arranged using the corner of the plate as a reference point, such as the guide pin 8 and sleeve 9, and another part is arranged using the representative point of this part as the reference point, the plate size cannot be changed. If a component having a reference point is moved due to the movement of a component or a component, the cast positions of all related components can be changed simultaneously.

Effects of the Invention According to the component position correction method of the present invention, when arranging components that are to be disposed at a certain distance from the corners of the plate or parts that have a certain mutual relationship, the corners of the mold plate, or By setting a reference point at the representative point of a component that has been placed on a plate in advance, and specifying the relative position from the reference point, the placement position of the component can be determined, making it possible to change the plate size or component position. Even if you do so, the placement positions of these parts will be automatically corrected according to changes in plate size or part position, so there is no need to perform troublesome calculations or long sword operations to correct the part positions. This allows mold design work to proceed smoothly.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the main parts of an automatic programming device that is a CAD system of an embodiment that implements the method of the present invention, and FIG. 2 is a flowchart showing an outline of relative position designation processing in the CAD system of the embodiment. , FIG. 3 is a flowchart showing an outline of the component position correction process of the same embodiment, FIGS. 4 and 5 are conceptual diagrams showing examples of graphic displays when relative position designation processing is executed, and FIG. FIG. 7 is a conceptual diagram showing a display example of a graphic display after execution of the correction process, and FIG. 7 is a side view showing an example of the relationship between mold plates and plate numbers. (1)... Fixed side mounting plate, (2)... Cavity plate, (3)... Core plate, (4)...
・Back plate, (5a)...first spacer, (5
b)...Second spacer, (6)...Ejector plate, (7)...Movable side mounting plate, 8...Guide pin, 9...Sleeve, 1o...Processor (C
PU), 11...ROM, 12...RAM. 13...Keyboard, 14...Graphic display (CRT), 15...Tablet device, 1
5a... Screen corresponding area, 15b... Menu table, 1
5c...Tablet cursor, 16...Disk controller, 17...Floppy disk, 18...
・Plotter, 19...Printer, 2o...Bus, p
l, p2...Reference point. However, the numbers in parentheses indicate plate numbers. 1st 1st/'

Claims (1)

[Claims] In a mold design method in which a mold plate is displayed on a graphic display in a CAD system and a mold is designed by arranging pre-registered mold parts on the displayed plate, the corner of the plate or the The representative point of a component placed in advance on the plate is set as a reference point, and the relative position from the reference point is specified to determine the placement position of the component, and the plate size is changed or the part placed in advance is changed. If the position of the above reference point changes due to a change in the installation position of the
A part position correction method in mold design, characterized in that the part position positioned with respect to a reference point is also changed.