JP2007021689A - Machining die and method for manufacturing substrate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a machining die capable of enhancing positioning accuracy of a workpiece by simple structure. <P>SOLUTION: In this machining die 1, the workpiece 9 is machined by providing a positioning pin 5 positioning the workpiece 9 in one of a punch and a bottom force and positioning the workpiece 9 by inserting the positioning pin 5 in a positioning hole 23 formed in the workpiece 9. In the die 1, the workpiece 9 is positioned by constituting a peripheral wall of the positioning pin 5 in a separated state from an inner wall of the positioning hole 23 in a die-opened state, and in an abutting state on the inner wall in a die-closed state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a processing die having a positioning pin for positioning a workpiece, and a method for manufacturing a substrate manufactured by the processing die.

  The machining die is an apparatus for machining a predetermined portion of a workpiece. For example, a printed wiring board is created by placing a base material as a workpiece on a machining die and machining a predetermined portion with a punch fixed to the machining die.

  FIG. 10 is a front view of a base material in which positioning holes are formed. The base material 121 is formed by forming a copper foil on a base plate 122 made of glass epoxy resin or the like, forming a wiring pattern 124 by etching or the like, and then forming a substantially cylindrical positioning hole 123 with a drill or the like. The Further, two positioning holes 123 are provided in the diagonal direction of the base plate 122. The positioning hole 123 is provided for positioning the base material 121 with respect to the processing mold 100 (see FIG. 11).

  FIG. 11 is a schematic cross-sectional view of a state in which a base material is disposed on a conventional processing mold. The processing mold 100 includes an upper mold 102 and a lower mold 103. A punch 106 is fixed to the lower mold 103, and a die 107 that fits the punch 106 is provided on the upper mold 102. The lower mold 103 is provided with a plurality of positioning pins 105 protruding.

  The base material 121 is arranged on the lower mold 103 with the positioning holes 123 fitted on the positioning pins 105. Since the base material 121 is positioned by the two positioning holes 123, the base material 121 is not displaced from front to back and left and right with respect to the lower mold 103. As a result, a predetermined portion is punched without being displaced by the punch 106, and a processed hole or the like is formed.

  The diameter of the positioning pin 105 is slightly smaller than the diameter of the positioning hole 123 of the base material 121. This is to make it easier to fit the positioning hole 123 to the positioning pin 105 when the base material 121 is placed on the lower mold 103. Further, when there is a dimensional error in the positioning hole 123 of the base material 121, when the base material 121 is warped, when the base material 121 having elasticity (for example, a flexible substrate) 121 is stretched, the positioning is performed. Although the hole 123 is displaced from the original position, even in such a case, the positioning hole 123 can be externally fitted to the positioning pin 105.

  Specifically, the diameter of the positioning hole 123 is set to 3.0 mm, the diameter of the positioning pin 105 is set to 2.9 mm, and a clearance d of 0.1 mm (see FIG. 12) is provided. In FIG. 11, a gap a and a gap b are provided on both sides of the positioning pin 105 with respect to the positioning hole 123, and the sum of the gap a and the gap b is the clearance d.

  However, since the base material 121 can move the clearance d with respect to the lower mold 103, the predetermined portion to be processed is displaced by that amount. That is, the base material 121 should ideally be arranged so that the center of the positioning hole 123 coincides with the center of the positioning pin 105, but there is a clearance d between the positioning hole 123 and the positioning pin 105. However, it is not ideally arranged.

  FIG. 12 is a schematic cross-sectional view of a state in which the base material is displaced with respect to a conventional machining die. At this time, the inner wall of the positioning hole 123 of the base material 121 is in contact with the peripheral wall of the positioning pin 105, and the base material 121 is arranged with a deviation of about half of the clearance d with respect to the ideal arrangement position. That is, when the center of the positioning hole 123 is arranged so as to coincide with the center of the positioning pin 105, the gap between the inner wall of the positioning hole 123 and the peripheral wall of the positioning pin 105 is half the distance d of the clearance d. When the peripheral wall comes into contact with the peripheral wall, the gap disappears, and accordingly, a positional deviation of half of the clearance d occurs.

Therefore, in order to reduce the positional deviation of the base material 121, the positional deviation with respect to the lower mold of the wiring pattern 124 is detected by the machining position error detection device, the positional deviation is input as a correction value, and the machining position is corrected, A positioning method for improving positioning accuracy has been proposed (see Patent Document 1).
JP-A-5-220646

  However, with the technique described in Patent Document 1, although accurate positioning and accurate processing can be performed, the work is complicated, and the apparatus becomes large and expensive.

  The present invention has been made in view of such a situation, and it is possible to easily place a workpiece on a machining die, which is a relatively simple structure and can improve the positioning accuracy of the workpiece. It is an object of the present invention to provide a method for manufacturing a mold and a substrate with a small processing position deviation.

  The machining die according to the present invention is provided with a positioning pin for positioning the workpiece in one of the upper die and the lower die, and the positioning pin is inserted into a positioning hole formed in the workpiece so that the workpiece In the processing mold for processing the workpiece, the peripheral wall of the positioning pin is separated from the inner wall of the positioning hole in the mold open state in which the upper mold and the lower mold are opened, and the upper mold and the The lower mold is closed and the mold closes to the inner wall.

  With this configuration, when the workpiece is placed on the mold with the workpiece positioning hole aligned with the positioning pin in the mold open state, the peripheral wall of the positioning pin is separated from the inner wall of the positioning hole. Is easier to do. Further, when the workpiece is machined in the mold-closed state, the peripheral wall of the positioning pin and the inner wall of the workpiece positioning hole are fitted close to each other without a gap, so that the positional deviation in machining the workpiece can be minimized. Furthermore, since the gap is provided between the peripheral wall of the positioning pin and the inner wall of the positioning hole in the mold open state after processing the workpiece, the workpiece can be easily taken out from the processing mold.

  Further, in the working die according to the present invention, the positioning pin has a taper so that the diameter of the tip portion is smaller than the diameter of the positioning hole and the diameter of the base portion is substantially the same as the diameter of the positioning hole. And the base is housed inside the mold when the mold is open, and the base protrudes from the mold when the mold is closed.

  With this configuration, in the mold open state, the base portion of the positioning pin is housed in the mold, and only the tip portion protrudes from the die, so that there is sufficient space between the tip portion and the inner wall of the workpiece positioning hole. Since there is a gap, it is easy to place the workpiece in the mold.

  In the closed state where the workpiece is processed, the positioning pin housed in the mold protrudes and is inserted into the positioning hole, and the gap between the peripheral wall of the base and the inner wall of the positioning hole is reduced. Positioning is accurately performed, and positional deviation in machining the workpiece is suppressed. Furthermore, in the mold open state after processing the workpiece, the positioning pin is pulled out from the positioning hole and the tip portion is separated from the positioning hole, so that the workpiece can be easily taken out from the processing mold.

  Further, in the working die according to the present invention, the positioning pin is divided so as to be separated / abutted freely in the protruding direction, and the pin diameter when the abutting is formed is smaller than the diameter of the positioning hole. The positioning pin is abutted in the mold open state, and the positioning pin is separated in the mold closed state, and the peripheral wall is in contact with the inner wall.

  With this configuration, when the mold is open, the positioning pins abut and the diameter of the peripheral wall is reduced, so that a sufficient gap is created between the peripheral wall and the inner wall of the positioning hole. It is easy to do.

  Further, in the closed state where the workpiece is processed, the positioning pins are separated and the peripheral wall is close to the inner wall of the positioning hole, so that the workpiece is accurately positioned and positional deviation in the processing of the workpiece is suppressed. Furthermore, in the mold open state after processing the workpiece, the positioning pins abut and the peripheral wall is separated from the inner wall of the positioning hole so that a gap is provided, so that the workpiece can be easily taken out from the processing mold.

  In the working mold according to the present invention, the positioning pin is divided into four parts.

  With this configuration, when positioning the workpiece with the positioning pins separated from each other, the workpiece comes into contact with the positioning hole in four directions, so that the workpiece can be positioned more accurately.

  In the working mold according to the present invention, a sleeve through which the positioning pin is inserted is provided in the other mold facing the one mold provided with the positioning pin, and the inner diameter of the sleeve is The diameter of the base is substantially the same.

  With this configuration, the position of the positioning pin itself is corrected by inserting the positioning pin into the opposing sleeve of the mold, so that the workpiece can be positioned more accurately.

  In the substrate manufacturing method according to the present invention, a positioning hole is formed in a workpiece, the positioning die is aligned with a positioning pin provided in the machining die in a state where the machining die is opened, and the workpiece is placed in the machining die. In the substrate manufacturing method of manufacturing a substrate by processing the workpiece while the processing die is closed, the processing die is a processing die according to the present invention. .

  With this configuration, the workpiece can be arranged with reduced positional deviation with respect to the mold, so that a substrate with a small positional deviation of the processed portion can be manufactured.

  According to the machining die according to the present invention, the peripheral wall of the positioning pin of the machining die is separated from the inner wall of the positioning hole of the workpiece in the mold open state, and is placed close to the mold in the closed state. Moreover, the position shift in processing can be suppressed.

  Further, according to the machining die according to the present invention, since the positioning pin having a thin tip can be accommodated and projected in the die, the workpiece can be accurately positioned with a simple structure.

  Further, according to the machining die according to the present invention, the positioning pins are configured to divide and abut and separate, so that the workpiece can be accurately positioned with a simple structure.

  Further, according to the machining die according to the present invention, the positioning pin is divided into four parts and separated and abutted, so that the workpiece can be positioned more accurately with a simple structure.

  Further, according to the machining die according to the present invention, since the positioning pin is inserted into the opposing mold sleeve in the closed state, the position of the positioning pin is corrected, so that the workpiece can be positioned more accurately with a simple structure. can do.

  According to the method for manufacturing a substrate according to the present invention, the workpiece can be arranged with the positional deviation suppressed with respect to the mold, and therefore a substrate with a small positional deviation of the processed portion can be manufactured.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Embodiment 1>
FIG. 1 is a front view of a base material in which positioning holes are formed. In the base material (work) 21 processed by the processing mold 1, a positioning hole 23 for positioning and arranging is formed by a drill or the like. For example, the base material 21 of the printed wiring board has two positioning holes 23 formed diagonally. The printed wiring board base 21 is provided with a wiring pattern 24 on a base board 22 made of glass epoxy resin.

  FIG. 2 is a schematic cross-sectional view of a working die according to Embodiment 1 of the present invention in a state where a base material is arranged. In FIG. 2, the cross-sectional hatching is omitted (the same applies to FIGS. 3 to 9).

  The processing mold 1 includes an upper mold 2 and a lower mold 3, guide pins (not shown) are provided on the upper mold 2, and guide bushes (not shown) are provided on the lower mold 3. The upper mold 2 and the lower mold 3 are configured such that the relative positions of the upper mold 2 and the lower mold 3 are not shifted by fitting the guide pin and the guide bush so as to be slidable.

  Further, a processing tool such as a punch 6 is fixed to the upper die 2 with screws or the like, and a die 7 that fits the punch 6 is provided on the lower die 3. The upper mold 2 and the lower mold 3 are fixed to a press machine, and one mold of the upper mold 2 and the lower mold 3 can be moved up and down by a driving device. Further, the punch 6 of the upper die 2 and the die 7 of the lower die 3 are fitted.

  A stripper plate 9 is provided on the upper die 2 on which the punch 6 is provided so that the punch 6 is hidden. The stripper plate 9 is urged by an elastic part so as to protrude from the upper mold 2 to the opposed lower mold 3. When the stripper plate 9 is pushed against the bias, the punch 6 protrudes.

  When the upper mold 2 or the lower mold 3 is moved up and down and the machining mold 1 is closed and the mold is closed, the stripper plate 9 comes into contact with the base material 21 disposed on the opposed lower mold 3 and the base material 21 Is in close contact with the lower mold 3. At this time, on the contrary, the stripper plate 9 is pushed against the biased force, so that the hidden punch 6 protrudes, hits the base material 21 and is fitted to the die 7. As a result, the base material 21 is punched by the punch 6 (see FIG. 3).

  In addition, raising / lowering of the upper mold | type 2 or the lower mold | type 3 is controlled when the stroke end pins (not shown) provided in the process metal mold 1 collide with each other. In the upper mold 2 or the lower mold 3, the elevating direction is reversed after the stroke end pin collides.

  The lower mold 3 is provided with two positioning pins 5 protruding. The base material 21 is arranged in the processing mold 1 with the positioning holes 23 fitted on the positioning pins 5. Since the base material 21 is fixed by the two positioning pins 5, the base material 21 is not displaced from front to back and from side to side with respect to the machining die 1. As a result, the predetermined location is processed without the positional relationship between the punch 6 and die 7 and the base material 21 being shifted. Specifically, in the production of the printed wiring board, the base material 21 is formed in a predetermined outer shape by processing a predetermined portion with respect to the positioning hole 23.

  The positioning pin 5 is provided on the lower mold 3 on the side where the base material 21 is disposed so as to be movable up and down. The positioning pin 5 is housed in the lower mold 3 when the working mold 1 is opened, and is provided so as to protrude from the lower mold when the working mold 1 is closed.

  A sleeve 11 is provided on the upper mold 2 with respect to the arrangement of the positioning pins 5. The sleeve 11 has a cylindrical shape having a slightly larger diameter than the base portion 5 d (see FIG. 3) of the positioning pin 5, and the positioning pin 5 is attached to the sleeve 11 in the mold closed state in which the machining die 1 is closed. It is supposed to be inserted.

  Next, the operation of the positioning pin 5 that is driven as the machining die 1 is opened and closed will be described.

  When the working mold 1 is in the open state, the positioning pin 5 is in a state where only the tip portion 5c protrudes. That is, since the tip portion 5c of the positioning pin 5 protruding from the lower mold 3 is thinner than the base portion 5d, the gap with the positioning hole 23 of the base material 21 is large, and the positioning hole 23 of the base material 21 is easily provided. Can be externally fitted to the positioning pin 5, so that the base material 21 can be easily arranged.

  FIG. 3 is a schematic cross-sectional view of the machining die according to Embodiment 1 of the present invention when the machining die is closed after the base material is arranged in FIG. 2.

  When the machining die 1 is closed, the positioning pin 5 protrudes from the lower die 3 and is inserted deeply into the positioning hole 23. On the other hand, the stripper plate 9 provided on the upper mold 2 abuts on the base material 21 and presses the base material 21 against the lower mold 3. At this time, the punch 6 hidden in the stripper plate 9 protrudes, abuts against the base material 21, punches a predetermined portion, and forms a processing hole 26 corresponding to the punch 6.

  When the stripper plate 9 comes into contact with the base material 21, the positioning pin 5 is completely protruded, and the peripheral wall 5 a of the base portion 5 d of the positioning pin 5 and the inner wall 23 a of the positioning hole 23 of the base material 21 The gap is minimized. Accordingly, since the positioning pin 5 accurately positions when the base material 21 is processed, the positional deviation in the processing of the base material 21 is suppressed.

  Furthermore, since the tip of the positioning pin 5 is inserted into the sleeve 11 of the upper mold 2 that is opposed, even if the positioning pin 5 abuts on the base material 21 and is slightly bent and displaced, it is corrected to a predetermined position. Is done. This further suppresses misalignment in the processing of the base material 21.

  FIG. 4 is a schematic cross-sectional view of the machining die according to Embodiment 1 of the present invention when the machining die is opened after the machining die is closed in FIG. 3. When the machining die 1 is in the open state, the positioning pin 5 is accommodated in the lower die 3 and pulled out from the positioning hole 23 of the base material 21. On the other hand, the stripper plate 9 is separated from the base material 21. As a result, the base material 21 is released from being fixed by the positioning pins 5 and the stripper plate 9 and can be easily taken out from the mold.

  Here, the diameter of the base portion 5d of the positioning pin 5 will be described. The base portion 5d of the positioning pin 5 is smaller than the clearance d between the positioning hole 23 and the positioning pin 5 set in the prior art in order to reduce the positional deviation that occurs when the base material 21 is placed on the lower mold 3. Clearance d.

  This is because when the base material 21 is placed on the lower mold 3 in the mold open state, the base material 21 can be easily placed on the lower mold 3 because the positioning pins 5 are accommodated in the lower mold 3. When the mold is closed, the positioning pin 5 protrudes from the lower mold 3, but since the tip is thin and the head is rounded, the positioning pin 5 is easily inserted into the positioning hole 23 of the base material 21. It is.

  Specifically, when the diameter of the positioning hole 23 is set to 2.9 mm and the clearance d is set to 0.1 mm with respect to the diameter of the positioning hole 23 in the related art, for example, positioning is performed. The diameter of the base 5d of the positioning pin 5 can be set to 2.95 mm and the clearance d can be set to 0.05 mm with respect to the diameter of the hole 23 being 3.0 mm.

  Therefore, in the prior art, the processing position shift is 0.05 mm which is half of the clearance d0.1 mm, but in the processing mold 1 according to the present invention, it is 0.025 mm which is half of the clearance d0.05 mm. The positional deviation in processing of the base material 21 is improved by a maximum of 0.025 mm.

  In addition, although the processing mold 1 of this Embodiment is set as the structure which suppresses the base material 21 with the stripper plate 9, it is good also as a structure which does not provide the stripper plate 9. FIG. Thereby, the mold structure can be further simplified.

<Embodiment 2>
A working die according to Embodiment 2 of the present invention will be described.

  FIG. 5 is a schematic cross-sectional view of a working die according to Embodiment 2 of the present invention in a state where a base material is arranged.

  Since the basic configuration of the machining die according to the second embodiment is the same as that of the machining die according to the first embodiment, only the positioning pin 5 will be described, and the description of other configurations will be omitted.

  The positioning pin 5 is provided so as to protrude from the lower mold 3 on the side where the base material 21 is disposed, and is divided by a plane passing through the central axis of the positioning pin 5 so that the divided portions can be separated from each other and collide with each other. It is configured.

  Further, the positioning pin 5 is formed so that the tip portion 5c is rounded in the abutted state, and is formed so as to become narrower from the base portion 5d toward the tip portion 5c. The base portion 5 d of the positioning pin 5 is formed so that the outer edge diameter in a separated state is slightly smaller than the diameter of the positioning hole 23.

  Alternatively, the peripheral wall 5a of the base portion 5d of the positioning pin 5 may be set so as to contact the inner wall 23a of the positioning hole 23 when the positioning pin 5 is separated. Thereby, in the mold closed state, the gap between the peripheral wall 5a of the base portion 5d and the inner wall 23a is eliminated, so that the positional deviation of the base material 21 can be further reduced.

  A sleeve 11 is provided on the upper mold 2 with respect to the arrangement of the positioning pins 5. The sleeve 11 has a cylindrical shape having a slightly larger diameter than the base portion 5 d of the positioning pin 5, and the positioning pin 5 is inserted into the sleeve 11 when the machining die 1 is closed. ing.

  Next, the operation of the positioning pin 5 that is driven as the machining die 1 is opened and closed will be described.

  When the working mold 1 is in the open state, the positioning pins 5 are in contact with the divided positioning pins 5. That is, the diameter of the positioning pin 5 is smaller than the diameter of the positioning hole 23 and the gap between the positioning hole 23 of the base material 21 and the positioning hole 23 of the base material 21 is large. 5 so that the base material 21 can be easily arranged.

  FIG. 6 is a schematic cross-sectional view of the machining die according to Embodiment 2 of the present invention when the machining die is closed after the base material is arranged in FIG.

  When the machining die 1 is in a closed mold state, the positioning pins 5 are separated so that the gap between the positioning holes 23 is reduced. On the other hand, the stripper plate 9 provided on the upper die 2 abuts on the base material 21 and presses the base material 21 against the corresponding lower die 3. At this time, the punch 6 hidden behind the stripper plate 9 is protruded and abutted against the base material 21 to punch out a predetermined portion, thereby forming a processing hole 26 corresponding to the punch 6.

  On the other hand, when the stripper plate 9 comes into contact with the base material 21, the positioning pin 5 is completely separated, and the peripheral wall 5 a of the base portion 5 d of the positioning pin 5 and the inner wall 23 a of the positioning hole 23 of the base material 21. The gap is minimized. Accordingly, since the positioning pin 5 accurately positions when the base material 21 is processed, the positional deviation in the processing of the base material 21 is suppressed.

  Further, since the distal end portion 5c of the positioning pin 5 is inserted into the sleeve 11 of the upper mold 2 that faces the positioning pin 5, even if the positioning pin 5 is slightly bent due to contact with the base material 21 and a positional deviation occurs, a predetermined displacement is caused. Corrected to position. Thereby, the position shift of the processing of the base material 21 can be further reduced.

  FIG. 7 is a schematic cross-sectional view of the machining die according to Embodiment 2 of the present invention when the machining die is opened after the machining die is closed in FIG. When the working mold 1 is in the open state, the spaced positioning pins 5 abut each other, and a gap is formed between the positioning hole 23 and the inner wall 23a. On the other hand, the stripper plate 9 is separated from the base material 21. As a result, the base material 21 is released from being fixed by the positioning pins 5 and the stripper plate 9 and can be easily taken out from the mold.

  Here, the outer edge diameter of the base 5d in the separated state will be described. The outer edge diameter of the base portion 5d in the separated state is set to the clearance d between the positioning hole 23 and the positioning pin 5 set in the prior art in order to reduce the positional deviation that occurs when the base material 21 is disposed on the lower mold 3. On the other hand, a smaller clearance d can be set.

  This is because when the base material 21 is placed on the lower mold 3 in the mold open state, the positioning pins 5 are abutted and narrowed so that the base material 21 can be easily placed on the lower mold 3. is there.

  Specifically, when the diameter of the positioning hole 23 is 3.0 mm and the diameter of the positioning pin 5 is set to 2.9 mm and the clearance d is set to 0.1 mm in the related art, for example, positioning is performed. The diameter of the base 5d when the positioning pin 5 is separated from the diameter of the hole 23 with respect to 3.0 mm can be set to 2.98 mm, and the clearance d can be set to 0.02 mm. Therefore, in the prior art, the processing position shift is 0.05 mm which is half of the clearance d0.1 mm. However, in the processing die 1 according to the present invention, it is 0.01 mm which is half of the clearance d0.02 mm. The positional deviation in processing of the base material 21 is improved by a maximum of 0.03 mm.

  Next, the specific structure of the positioning pin 5 of the working die according to the second embodiment of the present invention will be described.

  FIG. 8 or FIG. 9 is an enlarged view of a state in which the base material positioning hole is externally fitted to the positioning pin of the working die according to the second embodiment of the present invention, and FIG. It is sectional drawing at the time, (B) is sectional drawing when a positioning pin spaces apart.

  The positioning pin 5 (Example 1) shown in FIG. 8 is divided symmetrically with respect to a plane passing through the central axis. When the positioning pin 5 is abutted, a clearance d is provided for the positioning hole 23. When the positioning pin 5 is separated, the peripheral wall 5a of the positioning pin 5 approaches the inner wall 23a of the positioning hole 23 and the gap is reduced. As a result, the base material 21 is accurately positioned with respect to the lower mold 3.

  The positioning pin 5 (Example 2) shown in FIG. 9 is equally divided into four by a plane passing through the central axis and a plane perpendicular thereto. A clearance d is provided with respect to the positioning hole 23 when the four divided positioning pins 5 are in contact with each other. When the positioning pin 5 is separated in four directions, the peripheral wall 5a of the positioning pin 5 is close to the inner wall 23a of the positioning hole 23 in the four directions and the gap is reduced. Thereby, the base material 21 is accurately positioned with respect to the lower mold 3 in the front and rear, right and left directions (four directions).

  The divided positioning pins 5 are separated and collide with each other when power of a driving means (not shown) is transmitted through power transmission means (not shown). For example, the positioning pin 5 is inserted and bundled in a substantially cylindrical holder (not shown) so as to be slidable, and an arm (not shown) as power transmission means is attached to the lower stage of each base portion 5d. Is attached through. The arm is pivotally attached to the attachment portion, and the other end is pivotally connected to the wire. The other end of the wire is attached to the drive unit via a pulley or the like. Thereby, the power of the drive unit is transmitted through the wire and the arm. The drive unit is configured by an electromagnetic solenoid or an air cylinder.

  Further, a plate spring or a coil spring having a necessary spring coefficient may be provided between the divided positioning pins 5 so that the divided positioning pins 5 are separated from each other. Thereby, the positioning pin 5 can be separated and abutted with a substantially constant force. When a leaf spring or a coil spring is provided, an attachment space is provided in the base portion 5d to which the leaf spring or the coil spring is attached, so that the divided positioning pins 5 completely abut. Moreover, you may provide the leaf | plate spring which has a required spring coefficient suitably between each divided positioning pin 5 and a holder.

<Embodiment 3>
A method for manufacturing a substrate according to Embodiment 3 of the present invention will be described with reference to FIGS.

  First, the positioning hole 23 is formed in the base material 21. The diameter of the positioning hole 23 is set in consideration of the diameter of the positioning pin 5 of the above-described processing mold 1 for processing the base material 21. That is, when the working mold 1 of the first embodiment or the second embodiment is used, the clearance d between the positioning hole 23 and the positioning pin 5 can be made smaller than before, so that the positioning hole 23 is made smaller. be able to.

  For example, when the clearance d is 0.05 mm with respect to the diameter of the base 5d of the positioning pin 5 being 2.95 mm, the diameter of the positioning hole 23 can be set to 3.00 mm.

  Next, the base material 21 is placed in the processing mold 1 of the present invention, and a predetermined portion is processed to obtain the substrate of FIG. 4 or FIG. That is, it is possible to manufacture a substrate with a small positional deviation of the processed portion.

It is a front view of the base material provided with the positioning hole. FIG. 3 is a schematic cross-sectional view showing a state in which a base material is arranged in the working mold according to the first embodiment of the present invention. FIG. 3 is a schematic cross-sectional view of the machining die according to Embodiment 1 of the present invention when the machining die is closed after placing the base material in FIG. 2. FIG. 4 is a schematic cross-sectional view of the machining die according to Embodiment 1 of the present invention when the machining die is opened after the machining die is closed in FIG. 3. In the processing metal mold | die which concerns on Embodiment 2 of this invention, it is a cross-sectional schematic diagram of the state which has arrange | positioned the base material. FIG. 6 is a schematic cross-sectional view of the machining die according to Embodiment 2 of the present invention when the machining die is closed after placing the base material in FIG. 5. FIG. 7 is a schematic cross-sectional view of the machining die according to Embodiment 2 of the present invention when the machining die is opened after closing the machining die in FIG. 6. It is an enlarged view of a state in which the positioning hole of the base material is externally fitted to the positioning pin of the working die according to Embodiment 2 of the present invention, (A) is a cross-sectional view when the positioning pin abuts, (B) is sectional drawing when a positioning pin spaces apart. It is an enlarged view of a state in which the positioning hole of the base material is externally fitted to the positioning pin of the working die according to Embodiment 2 of the present invention, (A) is a cross-sectional view when the positioning pin abuts, (B) is sectional drawing when a positioning pin spaces apart. It is a front view of the base material in which the positioning hole was formed. It is the cross-sectional schematic of the state which has arrange | positioned the base material to the conventional process metal mold | die. It is the cross-sectional schematic of the state which the base material shifted | deviated with respect to the conventional process metal mold | die.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Processing die 2 Upper die 3 Lower die 5 Positioning pin 5a Positioning pin peripheral wall 5c Positioning pin tip 5d Positioning pin base 6 Punch 7 Die 9 Stripper plate 11 Sleeve 21 Base material (workpiece)
22 base plate 23 positioning hole 23a inner wall of positioning hole 24 wiring pattern 26 machining hole d clearance

Claims (6)

A positioning pin for positioning the workpiece is provided in one of the upper mold and the lower mold, and the workpiece is positioned by inserting the positioning pin into a positioning hole formed in the workpiece to process the workpiece. In the processing mold to
The peripheral wall of the positioning pin is spaced apart from the inner wall of the positioning hole when the upper die and the lower die are open, and is close to the inner wall when the upper die and the lower die are closed. A processing mold characterized by The positioning pin has a taper so that the diameter of the tip is smaller than the diameter of the positioning hole and the diameter of the base is substantially the same as the diameter of the positioning hole,
2. The working metal mold according to claim 1, wherein the base is housed inside the mold in the mold open state, and the base is protruded from the mold in the mold closed state. Type. The positioning pin is divided so as to be separated / abutted freely in the protruding direction, and is formed so that a pin diameter when abutting is smaller than a diameter of the positioning hole,
2. The machining die according to claim 1, wherein the positioning pin is abutted in a mold open state, and the positioning pin is separated in a mold closed state, and the peripheral wall is in contact with the inner wall.   The processing die according to claim 3, wherein the positioning pin is divided into four parts. A sleeve through which the positioning pin is inserted is provided in the other mold facing the one mold provided with the positioning pin,
5. The working die according to claim 2, wherein an inner diameter of the sleeve is substantially the same as a diameter of the base portion. A positioning hole is formed in the workpiece, the positioning die is aligned with a positioning pin provided in the machining die in a state where the machining die is opened, and the workpiece is arranged in the machining die. In a manufacturing method of a substrate for manufacturing a substrate by processing the workpiece in a closed state,
6. The substrate manufacturing method according to claim 1, wherein the processing mold is the processing mold according to claim 1.

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