JP2005131773A - Positioning member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning member which can smoothly and surely carry out the relative positioning of a punch and a female die, and also can reduce its cost by repeatedly using it. <P>SOLUTION: The positioning member 30 carries out the positioning of the punch 15, which is fixed to either of an upper surface plate and a lower surface plate of a punching machine 1, relative to the female die 17 fixed to the other of the upper surface plate and the lower surface plate. The positioning member 30 comprises a positioning pin 31 composed of a pin portion 33, the tip end side of the pin portion 33 capable of being inserted/drawn-out into/from a positioning pin insertion hole 23 provided on the punch 15, and a large diameter portion 34 provided on the base end portion of the pin portion 33, and a positioning disk 32, which is dismountably mounted on the tip end of the large diameter portion 34 and is inserted into a positioning hole 25 of the female die 17 by being fixed to the mounted surface of the female die 17. A holding force adjusting member 40, which is made from an elastic member and has the outside diameter nearly equal to that of the pin portion 33, is provided on the tip end portion of the pin portion 33. Further, a screw member 50 is provided so as to be screwed with the tip end portion of the pin portion 33 passing through the holding force adjusting member 40. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a positioning member used for positioning a relative position between a punching die constituting a punching die and a female die or a ruled receiving member constituting a part of the female die when the punching die is attached to a punching machine. .

  2. Description of the Related Art Conventionally, a punching machine has been used to punch a punched piece of a predetermined shape such as a developed box from a sheet material such as a synthetic resin film, thin paper, or cardboard. A conventional punching machine includes a punching die and a face plate opposed to the die, and punches the sheet material by pressing the punching die against the face plate on which the sheet material is placed.

  FIG. 8 shows a schematic cross-sectional view of a main part of a die and a female part in a conventional punching machine, and FIG. 9 shows a punching piece for a box punched by the punching machine.

  As shown in FIG. 8, the punching machine includes an upper surface plate 200 and a lower surface plate 300, and includes a chase 400 attached to the upper surface plate 200 and a dead plate 500 attached to the lower surface plate 300. Here, the chase 400 is one of general-purpose jigs that are accurately positioned and fixed to the upper surface plate 200 of the punching machine, and the dead plate 500 is a general-purpose jig that is accurately positioned and fixed to the lower surface plate 300. One.

  A die 600 fixed to the upper surface plate 200 is obtained by fixing a cutting blade 602 and a ruled line 603 to a die board 601. The die board 601 is usually made of a lumber such as a veneer plate, and the die board 601 is generally provided with a fixing groove 604 by laser processing. Note that when the fixed groove 604 is formed by laser processing in this way, for example, CAD data or the like can be used as position data of the fixed groove 604, so that the fixed groove 604 can be formed with very high accuracy. The cutting blade 602 and the ruled line 603 are formed by bending a strip-shaped plate material, and are inserted and fixed in a fixing groove 604 formed in the die board 601.

  On the other hand, the counter plate 700 fixed on the dead plate 500 is made of a metal plate having a thickness of about 1.0 mm or about 1.5 mm, and a concave groove 701 is formed in a portion corresponding to the ruled line 603. Is a flat receiving surface 702. In addition, since such a ditch | groove 701 is formed based on the same CAD data etc. which were used when forming the fixed groove | channel 604 mentioned above, a fixed groove | channel 604 and a shape correspond with high precision. .

  In such a punching machine, a sheet material 800 such as a synthetic resin film, thin paper, or thick paper is placed on the counter plate 700, and the counter plate 700 is raised from below, so that the cutting blade 602 receives the receiving surface 702 of the counter plate 700. The sheet material 800 can be punched out into a desired shape by being pressed against the sheet.

  An example of the punched piece formed in this way is shown in FIG. The punched piece 801 has a desired shape, and at the same time, has a cut line 802 and a ruled line (folded line) 803 serving as a fold. Here, the cut line 802 is formed by the tip of the cutting blade 602 coming into contact with the receiving surface 702 of the counter plate 700, and the ruled line 803 is formed by inserting the tip of the rule 603 into the concave groove 701. It is formed.

  Here, the counter plate 700 needs to be fixed to the upper surface of the dead plate 500 while being positioned with respect to the die 600. That is, since the counter plate 700 is provided with a concave groove 701 that receives the ruled line 603 fixed to the die 600, the counter plate 700 is fixed on the dead plate 500 in a state where the relative position of the concave groove 701 with respect to the ruled line 603 is positioned. There is a need to.

  As described above, as a method for positioning the relative position between the punching die 600 and the counter plate 700, for example, a method using a positioning attachment member composed of a positioning pin and a positioning disk is disclosed (for example, Patent Documents). 1).

  Specifically, first, the positioning pin is fixed to the die so as to protrude with respect to the female die, and a positioning disk that can be fitted to the base end (head) of the positioning pin is mounted. A double-sided adhesive tape is bonded in advance to the surface of the positioning disk facing the female mold. Next, the upper surface plate to which the die is fixed and the lower surface plate to which the dead plate is fixed are moved in a pressure-contact direction, and the positioning disk is moved to the dead plate by elastic deformation of the disk pressing rubber provided on the outer periphery of the positioning pin. Is pressed on the surface of the tape and bonded via a double-sided adhesive tape. Next, the female mold is positioned and fixed via a positioning disk bonded on the surface of the dead plate. If such a method is employ | adopted, it can attach to a punching machine in the state which positioned the cutting die and the female die.

  Further, such a conventional positioning attachment member is used by inserting a positioning pin into a cylindrical bush fixed to a punching die, but it is necessary to remove the positioning pin from the bush before punching. A structure in which a plurality of grooves are formed in the circumferential direction at intervals in the axial direction in the shaft portion of the positioning pin so that the positioning pin can be smoothly attached to and detached from the bush, and an O-ring is attached to each groove. Adopted. On the other hand, a double-sided adhesive or the like is provided on both sides of the disc pressing rubber so that the positioning pins do not fall out of the bush during positioning.

  However, such a positioning attachment member has a problem that the holding force (holding condition) of the bushing with respect to the positioning pin cannot be adjusted in order to prevent the positioning pin from falling off from the bush. In addition, the double-sided adhesive must be changed for each positioning operation, and there is a problem that the positioning operation between the punching die and the female die becomes complicated. Furthermore, if the positioning pin is more firmly fixed to the bush, it is possible to prevent the positioning pin from falling off the bush during positioning, but it is very difficult to manually remove the positioning pin from the bush. Because it becomes difficult, a tool is required. If the positioning pin is extracted with a tool, the positioning pin is damaged by the tool, and therefore, the positioning pin cannot be used repeatedly, and there is a problem that costs increase.

Japanese Patent Laid-Open No. 7-171895 (FIGS. 1 and 6)

  In view of such circumstances, the present invention provides a positioning member that can smoothly and reliably perform relative positioning between a punching die and a female die, and that can be repeatedly used to reduce costs. This is the issue.

  A first aspect of the present invention that solves the above-described problems includes a punching die fixed to one of an upper surface plate and a lower surface plate of a punching machine, and a female fixed to the other of the upper surface plate and the lower surface plate. In the positioning member for positioning relative to the mold, from the shaft portion in which the distal end side can be inserted into and removed from the positioning pin mounting hole provided in the extraction die and the large diameter portion provided in the base end portion of the shaft portion A positioning pin that is detachably provided at the distal end of the large-diameter portion and is fixed to the female mold installation surface and fitted into the female mold positioning hole, and the distal end portion of the shaft portion A holding force adjusting member made of an elastic member and having an outer diameter substantially coinciding with the shaft portion, and a screw member that passes through the holding force adjusting member and is screwed to the tip end portion of the shaft portion. The positioning member is characterized by the following.

  According to a second aspect of the present invention, in the first aspect, the positioning disk is detachable from the large-diameter portion of the positioning pin via a magnet.

  A third aspect of the present invention is characterized in that, in the first or second aspect, a pressing member is formed of an elastic member and provided on an outer periphery of the positioning pin on the base end side of the shaft portion. There is a positioning member.

  According to a fourth aspect of the present invention, there is provided a die that is fixed to one of an upper surface plate and a lower surface plate of a punching machine, a concave groove that is provided in the die and receives a ruled line, and the upper surface plate and the lower surface plate In the positioning member for positioning the relative position to the ruler receiving member fixed to the other of the surface plate, a shaft portion whose front end side can be inserted into and removed from a positioning pin mounting hole provided in the die and a base of the shaft portion A positioning pin is provided at the end portion and includes a fitting portion that fits into the positioning hole of the ruled receiving member. The tip portion of the shaft portion is formed of an elastic member and has an outer diameter that substantially matches the positioning pin. In the positioning member, a holding force adjusting member is provided, and a screw member that passes through the holding force adjusting member and is screwed to the tip end portion of the positioning pin is provided.

  According to a fifth aspect of the present invention, in the fourth aspect, there is provided a positioning member comprising an elastic member and a pressing member provided on an outer periphery of the shaft portion of the positioning pin.

  According to a sixth aspect of the present invention, in the fifth aspect, the positioning member is characterized in that an outer diameter of a portion of the positioning pin provided with the pressing member is smaller than an outer diameter of the shaft portion.

  According to a seventh aspect of the present invention, in any one of the fourth to sixth aspects, the outer periphery of the fitting portion has an outer diameter larger than the outer diameter of the fitting portion, and the positioning of the ruled receiving member The positioning member is characterized in that an engaging projection for engaging with the hole is provided.

  According to the positioning member of the present invention, the punching die constituting the punching die is adjusted by adjusting the deformation amount of the holding force adjusting member according to the tightening degree of the screw member and appropriately adjusting the holding force of the positioning pin mounting hole with respect to the positioning pin. And a female mold or a ruled receiving member constituting a part of the female mold can be positioned smoothly and reliably, and can be used repeatedly to reduce costs. .

  Hereinafter, the present invention will be described based on embodiments.

(Embodiment 1)
FIG. 1 is an enlarged cross-sectional view of a main part of a punching die according to Embodiment 1 of the present invention. 2 is a schematic view showing the positioning member according to Embodiment 1 of the present invention, in which (a) is an exploded plan view and (b) is a cross-sectional view. Further, FIG. 3 is a schematic cross-sectional view showing a state when the positioning member shown in FIG.

  As shown in FIG. 1, in this embodiment, the punching die 10 is opposed to the punching die 15 holding a cutting blade 13 and a ruled line 14 in a fixed groove 12 formed in a die board 11 serving as a punching body. The female mold 17 has a receiving surface 16. The female die 17 includes a counter plate 18 having a receiving surface opposite to the die 15 and a dead plate 19 for positioning and fixing the counter plate 18.

  The punching die 15 and the female die 17 constituting the punching die 10 are attached to either the upper surface plate 20 or the lower surface plate 21 of the punching machine 1. For example, in this embodiment, the die 15 is attached to the upper surface plate 20 via the chase 22, and the female die 17 is attached to the lower surface plate 21.

  In the present embodiment, the die board 11 constituting the die 15 is made of a material such as a veneer plate, and the fixing groove 12 is continuously formed on the surface facing the female die 17 by, for example, laser processing or the like. Yes. Such a fixed groove 12 is formed on the basis of the same CAD data or the like when forming a concave groove to be described later. In such a fixing groove 12, a cutting blade 13 and a ruled line 14 made of a strip-shaped metal plate material are inserted and fixed.

  Further, such a die 15 is provided with a positioning pin mounting hole 23 through which the die board 11 is penetrated in the thickness direction, and a positioning pin 31 constituting a part of a positioning member 30 to be described in detail later can be attached and detached. Yes. For example, in this embodiment, the inner peripheral surface of the positioning pin mounting hole 23 is subjected to reamer finishing. This is to facilitate the insertion of the positioning pin 31 into the positioning pin mounting hole 23. Of course, the present invention is not limited to this, and a cylindrical metal bush or the like may be provided on the inner peripheral portion of the positioning pin mounting hole 23 instead of the reamer finishing.

  In addition, as described above, the female mold 17 facing the die 15 is a dead plate 19 fixed on the surface of the lower surface plate 21 via screws 24, and a surface of the dead plate 19. The counter plate 18 is positioned and fixed. The counter plate 18 has a thickness of, for example, about 1.0 to 1.5 mm.

  Further, in such a counter plate 18, a concave groove 26 for receiving the ruled line 14 is continuously provided on the side of the planar receiving surface 16 facing the die 15. In the present embodiment, the concave groove 26 is formed at a predetermined position using the same CAD data or the like used when forming the fixing groove 12 for fixing the ruled line 14.

  In addition, the counter plate 18 is provided with at least two positioning holes 25 that can be fitted into a positioning disk 32 that is bonded onto the surface of the dead plate 19 by a positioning member 30 described later. As a result, the position of one counter plate 18 is determined by the positioning holes 25 that fit the at least two positioning disks 32. Each positioning hole 25 is provided at a position where it does not interfere with the cutting blade 13 and the ruled line 14 described above.

  The counter plate 18 has a positioning hole 25 in a positioning disk 32 bonded to the surface of the dead plate 19 from the positioning member 30 attached to the positioning pin mounting hole 23 of the die 15 as will be described in detail later. By being fitted, it is positioned and fixed on the surface of the dead plate 19.

  Here, the positioning member 30 of the present embodiment is used when positioning the relative position between the die 15 and the counter plate 18, and as shown in FIGS. 2 and 3, the tip portion is a positioning pin mounting hole. The positioning pin 31 is inserted into the positioning pin 31 and the positioning disk 32 is fitted to the base end of the positioning pin 31.

  The positioning pin 31 includes a shaft portion 33 whose front end portion can be inserted into and removed from the positioning pin mounting hole 23, and a large-diameter portion provided at the base end portion of the shaft portion 33 and having an outer diameter larger than the outer diameter of the shaft portion 33. 34. In this embodiment, the shaft portion 33 of the positioning pin 31 has a shape in which the outer diameter gradually decreases toward the tip end side. This is to facilitate the insertion of the positioning pin 31 into the positioning pin mounting hole 23. In this embodiment, SUS303 is used as the material for the positioning pin 31.

  A holding force adjusting member 40 made of an elastic member is provided at the tip of the shaft portion 33 of the positioning pin 31. The holding force adjusting member 40 has a cylindrical shape and an outer diameter that substantially coincides with the outer diameter on the distal end side of the shaft portion 33. In this embodiment, the outer diameter of the holding force adjusting member 40 is φ10 mm. Moreover, as a material which forms the holding power adjustment member 40, rubber | gum or an elastomer is mentioned, for example, In this embodiment, it formed using nitrile rubber (NBR). Further, the hardness of the holding force adjusting member 40 is preferably 60 to 70 °, for example, with a JIS K 6253 type A durometer, and is set to 65 ° in this embodiment.

  Furthermore, in this embodiment, the screw member 50 which consists of an external thread which penetrates such a holding force adjustment member 40 in an axial direction and is screwed together with the front-end | tip part of the axial part 33 is provided. Specifically, the holding force adjusting member 40 is provided with a screw insertion hole 41 that penetrates in the axial direction and has an inner diameter larger than the outer diameter of the screw member 50. On the other hand, a screw hole 51 provided at a predetermined depth in the axial direction from the tip surface of the shaft portion 33 of the positioning pin 31 is provided. The screw member 50 is screwed into the screw hole 51 through the screw insertion hole 41 of the holding force adjusting member 40. That is, the holding force adjustment member 40 is screwed between the screw member 50 and the tip end surface of the shaft portion 33 by screwing the screw member 50 into the screw hole 51 via the screw insertion hole 41 of the holding force adjustment member 40. It is to be pinched. In the present embodiment, a washer 60 is interposed between the screw member 50 and the holding force adjusting member 40.

  3A, the screw member 50 is screwed into the screw hole 51 so that the screw member 50 (washer 60) and the tip end surface of the shaft portion 33 are engaged. By compressing the holding force adjusting member 40 in the axial direction of the positioning pin 31, the holding force adjusting member 40 is elastically deformed in a direction intersecting the axial direction of the positioning pin 31, and the outer diameter of the holding force adjusting member 40 is Becomes larger than the outer diameter of the shaft portion 33.

  Then, as shown in FIG. 3 (b), the holding force adjustment member 40 is elastically deformed, and the leading end portion of the positioning pin 31 is inserted into the positioning pin mounting hole 23 of the die 15 to adjust the holding force. The positioning pin 31 is held in the positioning pin mounting hole 23 by the elastic force of the member 40. The holding force at this time can be adjusted by the degree of tightening of the screw member 50 with respect to the screw hole 51. That is, the elastic deformation amount of the holding force adjusting member 40 can be adjusted by the degree of tightening of the screw member 50 with respect to the screw hole 51, and the holding force of the positioning pin mounting hole 23 with respect to the positioning pin 31 is adjusted to a predetermined strength. be able to. Thereby, it is possible to make it difficult to remove the positioning member 30 (positioning pin 31) from the positioning pin mounting hole 23, and it is possible to adjust so that the positioning pin 31 can be smoothly inserted into and removed from the positioning mounting hole 23.

  Further, if the positioning pin 31 is adjusted so that it can be smoothly inserted into and removed from the positioning mounting hole 23 as described above, the positioning pin 31 does not have to be removed by a tool, and the positioning pin 31 is damaged by the tool. However, since the positioning pin 31 can be used repeatedly, the cost can be reduced.

  On the other hand, a positioning disk 32 serving as a reference for positioning and fixing the counter plate 18 on the surface of the dead plate 19 is fitted into the large diameter portion 34 provided on the base end side of the positioning pin 31.

  In this embodiment, the positioning disk 32 has a circular shape and an outer diameter larger than the outer diameter of the large diameter portion 34. The shape of the positioning disk 32 is not particularly limited, and may be, for example, a quadrangle or a triangle.

  Further, an engaging portion 32 a that engages with the large diameter portion 34 of the positioning pin 31 is provided on one surface of the positioning disk 32, and an adhesive layer 70 is provided on the other surface. The adhesive layer 70 is formed, for example, by applying a double-sided adhesive tape to the positioning disk 32 and removing the release paper from the double-sided adhesive tape. The outer diameter of the positioning disk 32 is, for example, about φ15 to 24 mm, and in this embodiment, it is φ24 mm.

  Further, such a positioning disk 32 is detachably provided via a magnet 80 interposed between the positioning disk 32 and the large diameter portion 34. For example, in the present embodiment, iron is used as the material of the positioning disk 32, the recess 81 is provided in the center of the large diameter portion 34, and the magnet 80 is provided in the recess 81. Of course, the present invention is not limited to this, and a magnet may be provided on the positioning disk side. Thus, by attaching the positioning disk 32 to the large-diameter portion 34 of the positioning pin 31 via the magnet 80, it is possible to prevent the positioning disk 32 from being detached from the positioning pin 31 and falling during positioning.

  A pressing member 90 made of an elastic member and pressing the positioning disk 32 in the axial direction of the positioning pin 31 is provided on the outer periphery of the shaft portion 33 of the positioning pin 31. The pressing member 90 has a cylindrical shape and has an outer diameter that substantially matches the outer diameter of the large-diameter portion 34 of the positioning pin 31. The pressing member 90 is provided with a pin insertion hole 91 through which the shaft portion 33 is inserted in the axial direction. Such a pressing member 90 is interposed between the large diameter portion 34 and the die 15 at the time of positioning described later, and presses the positioning disk 32 onto the surface of the dead plate 19. Note that the length of the pressing member 90 in the axial direction takes into account the length of the ruled line 14 or the cutting blade 13, and the ruled line 14 or the cutting blade 13 contacts the surface of the dead plate 19 during positioning. It is adjusted so as not to. Moreover, as a material which forms the press member 90, rubber | gum or an elastomer is mentioned, for example, Urethane rubber was used in this embodiment. Further, the hardness of the pressing member 90 is preferably 60 to 70 ° with a JIS K 6253 type A durometer, for example, and is set to 65 ° in this embodiment.

  Here, with reference to FIG. 4, the positioning fixing method at the time of attaching the punching die 10 with respect to the punching machine 1 using the positioning member 30 mentioned above is demonstrated. FIG. 4 is a schematic cross-sectional view illustrating a method for positioning a die and a female die using the positioning member according to Embodiment 1 of the present invention.

  As shown in FIG. 4A, first, the die 15 is fixed to the upper surface plate 20 of the punching machine 1 through the chase 22, and the dead plate 19 is fixed to the lower surface plate 21. In the present embodiment, the holding force adjusting member 40 is elastically deformed by tightening the screw member 50 of the positioning member 30 to thereby adjust in advance the holding force with respect to the positioning pin 31 of the positioning pin mounting hole 23 and the degree of attachment / detachment. deep. Then, the distal end side of the positioning pin 31 is inserted until the pressing member 90 contacts the die 15. The positioning disk 32 is engaged with the large diameter portion 34 of the positioning pin 31 via a magnet 80, and the release paper of the double-sided adhesive tape provided in advance on the surface of the positioning disk 32 on the dead plate 19 side is removed. Thus, the adhesive layer 70 is formed.

  Next, as shown in FIG. 4B, the upper surface of the dead plate 19 is moved to the positioning disk 32 engaged with the other end of the positioning pin 31 by moving the lower surface plate 21 toward the upper surface plate 20 side. Abut. When the lower surface plate 21 is further moved, the pressing member 90 interposed between the die 15 and the large-diameter portion 34 of the positioning pin 31 is elastically deformed to press the positioning disk 32 onto the surface of the dead plate 19. To do. As a result, the positioning disk 32 is bonded to the upper surface of the dead plate 19 via the adhesive layer 70. Although not shown, such a positioning disk 32 is bonded to a plurality of locations on the upper surface of the dead plate 19 with respect to the die 15 on one surface.

  Next, as shown in FIG. 4 (c), after the lower surface plate 21 is moved away from the upper surface plate 20, the positioning pins 31 are removed from the positioning pin mounting holes 23 of the die 15 and the dead plate 19 The positioning hole 24 of the counter plate 18 is aligned and attached to the positioning disk 32 bonded on the surface, and the counter plate 18 is positioned and fixed on the upper surface of the dead plate 19.

  Thus, the relative position between the die 15 and the counter plate 18 can be positioned with high accuracy, and the counter plate 18 and the dead plate 19 can be fixed in a state of being positioned with high accuracy. Therefore, the relative position between the die 15 and the female die 17 can be positioned with high accuracy.

  Thereafter, for example, a sheet material (not shown) such as a synthetic resin film, thin paper, or cardboard is placed on the receiving surface 16 of the counter plate 18 by the punching die 10 positioned and fixed to the punching machine 1. By raising the lower surface plate 21 from below and pressing the cutting blade 13 against the counter plate 18, the sheet material can be punched into a desired shape. At the same time, the ruled line 14 is pressed by the concave groove 26, and a ruled line (folded line) that becomes a crease can be formed at a desired position of the punched piece.

(Embodiment 2)
5A and 5B are schematic views showing a positioning member according to Embodiment 2 of the present invention, in which FIG. 5A is an exploded plan view and FIG. 5B is a cross-sectional view. In FIG. 5, the same parts as those in the first embodiment described above are denoted by the same reference numerals, and redundant description is omitted.

  In the first embodiment described above, the counter plate 18 is positioned and fixed with reference to the positioning disk 32 bonded to the surface of the dead plate 19 from the positioning member 30, but in this embodiment, as shown in FIG. The ruler receiving member 100 having a concave groove for receiving the punched ruler is attached to the base end portion side of the positioning pin 31A. As will be described in detail later, the ruler receiving member 100 is fixed on the dead plate by the positioning pin 31A. The positioning was fixed directly on the surface of the cutting plate. The female mold includes a ruled receiving member 100, a dead plate and a cutting plate.

  Such a positioning member 30A according to the present embodiment is fitted with the positioning hole 101 of the ruled receiving member 100 fitted to the base end portion on the opposite side to the shaft portion 33A side to be inserted into the unillustrated punching positioning pin mounting hole. A joint portion 35 is provided.

  In the present embodiment, the fitting portion 35 has an outer diameter slightly larger than the outer diameter of the shaft portion 33A. The fitting portion 35 is integrally provided with an engaging protrusion 36 having an outer diameter slightly larger than the outer diameter of the fitting portion 35. And the ruled receiving member 100 provided with the positioning hole 101 is attached to the fitting portion 35 through the positioning hole 101. As described above, when the rule receiving member 100 is fitted into the fitting portion 35, in the present embodiment, since the engagement protrusion 36 is provided in the fitting portion 35, the positioning hole 101 of the rule receiving member 100 is provided in the positioning hole 101. It is possible to prevent the engagement protrusion 36 from being engaged and the ruler receiving member 100 from being detached from the fitting portion 35. In this embodiment, for example, such an engagement protrusion 36 is provided in a headband shape with a width of about 0.2 mm on the outer periphery of the fitting portion 35 having an outer diameter of about 5 mm. The outer diameter of the fitting portion 35 where the protrusion 36 is provided is increased by about 0.02 mm.

  Further, in the present embodiment, a small diameter portion 37 having an outer diameter smaller than the outer diameter of the shaft portion 33A is provided at a portion between the shaft portion 33A and the fitting portion 35 of the positioning pin 31A. Further, on the outer periphery of the small-diameter portion 37 of the positioning pin 31A, a pressing member 90A that is made of an elastic member and presses the ruler receiving member 100 in the axial direction of the positioning pin 31A is provided. In the pressing member 90 </ b> A, the axial movement of the positioning pin 31 </ b> A is restricted between the step portion 37 a formed by the inner diameter difference between the shaft portion 33 </ b> A and the fitting portion 35 and the small diameter portion 37. The pressing member 90A has a cylindrical shape, and is provided with a pin insertion hole 91A through which the shaft portion 33A is inserted in the axial direction. The pressing member 90A is made of, for example, rubber or elastomer, and urethane rubber is used in this embodiment. The hardness of the pressing member 90A is preferably, for example, 60 to 80 ° with a JIS K 6253 type A durometer, and is 71 ° in this embodiment.

  Hereinafter, with reference to FIG. 6, the positioning fixing method at the time of attaching the punching die 10 with respect to the punching machine 1 using the positioning member 30A of this embodiment is demonstrated. FIG. 6 is a schematic cross-sectional view for explaining a positioning method of the punching die and the female die by the positioning member according to Embodiment 2 of the present invention.

  First, as shown in FIG. 6A, the holding force adjusting member 40 is elastically deformed by tightening the screw member 50, so that the holding force of the positioning pin 31A with respect to the positioning pin mounting hole 23 and the degree of attachment / detachment are adjusted in advance. Keep it. Then, the distal end side of the positioning pin 31A is inserted until the pressing member 90A contacts the die 15. Further, the positioning hole 101 of the ruled receiving member 100, which is a resin plate made of PP, PE, bakelite or the like, is fitted into the fitting portion 35 of the positioning member 30A. At this time, by utilizing the elasticity of the inner wall of the positioning hole 101 of the ruled receiving member 100 made of a resin plate, the positioning hole 101 of the ruled receiving member 100 is pushed into the fitting portion 35, so that the positioning hole 101 is fitted into the fitting portion. The engagement protrusions 36 of 35 are engaged with the steps. An adhesive layer 103 is provided on the surface of the rule receiving member 100 opposite to the die 15 side. That is, the adhesive layer 103 is formed by removing the release paper of the double-sided adhesive sheet. A cutting plate 110 made of a metal material is fixed on the surface of the dead plate 19 in advance.

  Next, as shown in FIG. 6B, the end surface on the base end side of the positioning pin 31 </ b> A comes into contact with the surface of the cutting plate 110 by moving the lower surface plate 21 toward the upper surface plate 20 side. . When the lower surface plate 21 is further moved, the positioning pin 31A is pushed into the positioning pin mounting hole 23 of the die 15 and the ruler receiving member 100 is cut by the elasticity of the pressing member 90A provided on the outer periphery of the positioning pin 31A. Press on the surface of the plate 110.

  Thereby, as shown in FIG. 6C, the rule receiving member 100 is bonded onto the surface of the cutting plate 110 via the adhesive layer 103.

  As described above, the positioning member 30 </ b> A of the present embodiment adjusts the amount of elastic deformation of the holding force adjusting member 40 according to the degree of tightening of the screw member 50 with respect to the screw hole 51, thereby providing the same effects as those of the first embodiment described above. Can be obtained.

(Other embodiments)
As mentioned above, although each embodiment of this invention was described, the structure of a positioning member is not limited to what was mentioned above. For example, in each of the above-described embodiments, the screw member 50 made of a male screw has been exemplified and described. However, the present invention is not limited to this, and the screw member may be a female screw.

  Moreover, in each embodiment mentioned above, the positioning members 30 and 30A of the structure which provided the screw member 50 threadedly engaged with the front-end | tip part of the axial parts 33 and 33A via the screw insertion hole 41 of the holding force adjustment member 40 were illustrated. Of course, the present invention is not limited to this. As shown in FIG. 7, a small-diameter portion 38 having an outer diameter smaller than that of the shaft portion 33B is provided at least at the tip portion of the shaft portion 33B of the positioning pin 31B. The positioning member 30B may be provided with a holding force adjusting member 40B having an outer diameter substantially coincident with the shaft portion 33B on the outer periphery thereof and longer than the length of the small diameter portion 38 in the axial direction.

It is a principal part expanded sectional view of the punching die which concerns on Embodiment 1 of this invention. It is the schematic which shows the positioning member which concerns on Embodiment 1 of this invention, Comprising: (a) is an exploded plan view, (b) is sectional drawing. It is a schematic sectional drawing which shows the state at the time of the mounting | wearing to the extraction die of the positioning member shown in FIG. 2 which concerns on Embodiment 1 of this invention. It is a schematic sectional drawing explaining the positioning method of the extraction die by the positioning member which concerns on Embodiment 1 of this invention, and a female type | mold. It is the schematic which shows the positioning member which concerns on Embodiment 2 of this invention, Comprising: (a) is an exploded plan view, (b) is sectional drawing. It is a schematic sectional drawing explaining the positioning method with the extraction die by the positioning member which concerns on Embodiment 2 of this invention, and a female type | mold. It is sectional drawing which shows the positioning member which concerns on other embodiment of this invention. It is a schematic sectional drawing of the punching machine which concerns on a prior art. It is a top view which shows an example of the punching piece punched with the punching machine of the prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Punching machine 10 Punching die 11 Die board 12 Fixed groove 13 Cutting blade 14 Rule 15 Cutting die 16 Receiving surface 17 Female die 18 Counter plate 19 Dead plate 20 Upper surface plate 21 Lower surface plate 22 Chase 23 Positioning pin mounting hole 24 Screw 25 Positioning hole 26 Groove 30, 30A, 30B Positioning member 31, 31A, 31B Positioning pin 32 Positioning disk 32a Engaging portion 33, 33A, 33B Shaft portion 34 Large diameter portion 35 Fitting portion 36 Engaging projection portion 37, 38 Small diameter portion 40 Holding force adjusting member 50 Screw member 51 Screw hole 60 Washer 70 Adhesive layer 80 Magnet 81 Recess 90, 90A Press member 100 Ruled receiving member 110 Cutting plate

Claims (7)

In a positioning member for positioning a relative position between a die fixed to one of the upper surface plate and the lower surface plate of the punching machine and a female die fixed to the other of the upper surface plate and the lower surface plate,
A positioning pin consisting of a shaft portion that can be inserted and removed at the distal end side into a positioning pin mounting hole provided in the mold, and a large diameter portion provided at the base end portion of the shaft portion, and detachable at the distal end of the large diameter portion And a positioning disk that is fixed to the female mold installation surface and fits into the female mold positioning hole, and is formed of an elastic member at the end of the shaft portion and substantially coincides with the shaft portion. A positioning member comprising a holding force adjusting member having a diameter, and a screw member that penetrates the holding force adjusting member and is screwed to a tip end portion of the shaft portion. The positioning member according to claim 1, wherein the positioning disk is detachably attached to the large-diameter portion of the positioning pin via a magnet. 3. The positioning member according to claim 1, further comprising a pressing member made of an elastic member and provided on an outer periphery of the shaft portion on the base end side of the positioning pin. 4. A die fixed to one of the upper surface plate and the lower surface plate of the punching machine, and a ruler fixed to the other of the upper surface plate and the lower surface plate, and having a concave groove for receiving the ruled surface provided in the die. In the positioning member for positioning the relative position with the receiving member,
A positioning pin comprising a shaft portion in which a distal end side can be inserted into and removed from a positioning pin mounting hole provided in the die and a fitting portion provided at a base end portion of the shaft portion and fitted in the positioning hole of the ruled receiving member. Provided with a holding force adjusting member made of an elastic member and having an outer diameter substantially coinciding with the positioning pin, and penetrating through the holding force adjusting member at the tip of the positioning pin. A positioning member provided with a screw member to be screwed. The positioning member according to claim 4, further comprising a pressing member made of an elastic member and provided on an outer periphery of the shaft portion of the positioning pin. The positioning member according to claim 5, wherein an outer diameter of a portion of the positioning pin where the pressing member is provided is smaller than an outer diameter of the shaft portion. In any one of Claims 4-6, the engaging protrusion part which has an outer diameter larger than the outer diameter of this fitting part, and engages with the said positioning hole of the said ruled receiving member in the outer periphery of the said fitting part. A positioning member provided.

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