JP2006095603A - Upper die device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an upper die device which is further improved to solve the problems that the amount of regrinding of the edge part of a punch is difficult to grasp and also a female thread part and a male thread part are strongly tightened or the like at assembly after regrinding and which facilitates height adjustment or the like. <P>SOLUTION: The upper die device is constituted so that a punch driver 9 which is provided with a retainer collar 7 freely rotatably or fixably on the top surface of a punch guide 5, provided with a punch body 43 proved with the edge part of the punch on the bottom end part vertically movably in the punch guide 5 and provided with the female thread part on which the upper part of the punch body 43 is screwed so that its vertical position is freely adjustable is rotated integrally with the retainer collar. A plurality of engaging recessed parts 31 are provided at proper intervals on a peripheral groove 29 which is formed on the bottom surface of the retainer collar 7 and a stopper pin 37 which is freely movable to the position of the peripheral groove 29 and a position which is engaged with the engaging recessed part on a slide member 35 which is engaged freely slidably in a guide groove 33 in the radial direction which is formed on the top surface of the punch guide. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an upper die apparatus that is used by being mounted on an appropriate punch press such as a turret punch press, and more specifically, a punch body having a punch blade portion at a lower end is vertically moved in a punch guide. In a configuration in which a disc-shaped stripper plate that is movably provided and is detachably provided at the lower end portion of the punch guide, the stripper plate can be easily attached and detached, and can be easily and securely attached. The present invention relates to an upper mold apparatus that can be easily adjusted in height after re-polishing.

As prior examples according to the present invention, there are, for example, Japanese Patent Application Laid-Open No. 10-113725 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2000-288656 (Patent Document 2).
JP 10-1113725 A JP 2000-288656 A

  In Patent Document 1 (Japanese Patent Application Laid-Open No. 10-113725), a punch body having a punch blade portion at its lower end is provided in a cylindrical punch guide so as to be movable up and down, and formed on the outer peripheral surface of the stripper plate. A swinging lock piece having a locking part engageable with the mating groove at the lower end is provided at the lower end of the punch guide so as to be able to swing inward and outward, and urged outwardly. A rotating ring provided with a lock piece pressing portion that presses the rocking lock piece inward to engage the engaging portion of the rocking lock piece with the engaging groove is provided at the lower end of the punch guide. It is the structure provided so that it could rotate freely.

  In Patent Document 1, the stripper plate can be attached and detached with respect to the lower end portion of the punch guide relatively easily, but the swing lock piece is made of a leaf spring, and is attached to the punch guide. May break.

In addition, since the engaging portion of the rocking lock piece is held in an engaged state with the engaging groove of the stripper plate by urging the rotating ring in the rotating direction by the coil spring, Further improvement is desired, for example, it may rotate against the urging force of the coil spring due to vibrations of the coil spring.

  In Patent Document 2 (Japanese Patent Laid-Open No. 2000-288656), a punch body having a punch blade portion at its lower end is provided in a cylindrical punch guide so as to be movable up and down, and surrounds the punch blade portion. The stripper plate is detachably provided at the lower end portion of the punch guide, and a ring member fixed to the upper end portion of the punch driver that is fitted only on the upper portion of the punch guide so as to freely move up and down; and an upper surface of the punch guide; A punch spring member having a punch head at its upper end is rotatably fitted in the punch driver, and the punch body is provided on the female screw portion provided on the punch head member. It is the structure which screwed the external thread part with which the upper part was equipped so that vertical position adjustment was possible.

  In the above configuration, although the height adjustment after re-polishing the punch blade portion can be easily performed, it is difficult to grasp the re-polishing amount of the punch blade portion, and the female screw portion and the male portion are assembled during assembly after re-polishing. Further improvement is desired, for example, the screw part may be firmly tightened.

  The present invention has been made in view of the above-described conventional problems in the upper die apparatus. A retainer collar is rotatably provided on the upper surface of the punch guide, and the punch blade portion is provided at the lower end portion in the punch guide. And a punch driver provided with a female screw part that is screwed up and down so that the upper part of the punch body can be adjusted up and down. The punch driver is configured to rotate integrally with the retainer collar. A mold device, wherein a plurality of engaging recesses are provided at appropriate intervals in a circumferential groove formed on the lower surface of the retainer collar, and are slidably engaged in a radial guide groove formed on the upper surface of the punch guide. The slide member is provided with a stopper pin which is movable to the position of the circumferential groove and the position engaged with the engagement recess.

  Further, an upper die apparatus in which a punch body having a punch blade portion at the lower end portion is provided in a cylindrical punch guide so as to be movable up and down, and a stripper portion surrounding the punch blade portion is provided at the lower end portion of the punch guide. A punch driver provided with a punch head at an upper end thereof is freely fitted in the retainer collar provided on the upper portion of the punch guide so as to freely move up and down, and the punch head and the retainer collar A strip elastic means for urging the punch driver upward is provided, and a circumferential groove is provided on the lower surface of the retainer collar provided on the upper portion of the punch guide or on the upper surface of the punch guide. A stopper pin in which a plurality of engagement recesses are provided in the circumferential direction at appropriate intervals on the inner side or the outer side, and the upper end portion or the lower end portion is engageable with the circumferential groove and the engagement recess portion. The stopper pin is provided in the upper part of the punch guide or the lower part of the retainer collar so as to be movable in the radial direction, and always maintains the state in which the upper end or lower end of the stopper pin is engaged with the engaging recess. It is the structure which energized and provided.

  In the upper die apparatus, the punch body is divided into an upper punch body and a lower punch body, and the upper and lower punch bodies are integrally connected by a connector, and the female formed on the punch driver. A male threaded portion provided on the upper portion of the upper punch body is screwed to the screw portion so that the vertical position can be adjusted, and a key engaged with a key groove formed on the punch guide is connected to the upper punch whose vertical position is adjustable. It is the structure provided in the body.

  In the upper mold apparatus, an elastic member for preventing the upper surface and the lower surface from being in close contact is provided on the upper surface of the upper punch body or the lower surface of the punch driver.

  Further, in the upper mold apparatus, the connecting member for connecting the upper and lower punch bodies is a bolt having a fluid passage, and the lower punch body is a guide hole for guiding the fluid supplied through the fluid passage to the outer peripheral surface. It is the structure provided with.

  A punch body with a punch blade at the lower end is provided in a cylindrical punch guide so as to be movable up and down, and a cylindrical stripper plate surrounding the punch blade can be attached to and detached from the lower end of the punch guide. A swing lock piece provided at the lower end portion of the punch guide with a locking portion engageable with an engagement groove formed on the outer peripheral surface of the stripper plate is provided at the lower end portion of the punch guide so as to be swingable inward and outward. The swinging lock piece is provided inwardly against the biasing force to engage the engaging portion of the swinging lock piece with the engagement groove of the stripper plate. A rotating ring provided with a locking piece pressing portion for pressing is provided at the lower end portion of the punch guide so as to be rotatable, and a retainer collar provided on the upper portion of the punch guide so as to be rotatable and fixed. With head A punch driver is provided so as to be freely movable only up and down, and the punch driver is provided by urging upward, and the punch body is divided into an upper punch body and a lower punch body, and the upper and lower punch bodies are provided. Are integrally connected by a connecting tool provided with a fluid passage, and a male screw part provided on the upper part of the upper punch body is screwed into a female screw part formed on the punch driver so that the vertical position can be adjusted. A guide hole for guiding the fluid supplied through the fluid passage to the outer peripheral surface is provided in the lower punch body, and a plurality of balls for rotatably supporting the rotating ring are provided at a lower end portion of the punch guide. In addition, a closing ring for closing the inside of the ball storage hole storing each ball is provided on the inner peripheral surface of the lower end portion of the punch guide.

  According to the present invention, re-polishing of the punch blade portion and subsequent height adjustment are easy, and the conventional problems as described above can be solved.

  Referring to FIG. 1, an upper mold apparatus 1 according to an embodiment of the present invention moves up and down to an upper mold holder 3 (corresponding to an upper turret in a turret punch press) such as a turret punch press. A cylindrical punch guide 5 that is freely supported is provided. The punch guide 5 is supported by the upper die holder 3 so as to be movable up and down via a lifter spring (not shown) interposed between a flange portion 5F provided on the upper portion of the punch guide 5 and the upper die holder 3. It is what has been.

  A retainer collar 7 is rotatably provided on the upper surface of the punch guide 5. A punch head 11 attached to an upper end portion of a punch driver 9 penetrating the retainer collar 7 only in the vertical direction and the retainer collar 7. Between them, a strip elastic means 13 for urging the punch driver 9 upward is provided.

  More specifically, the punch driver 9 passes through the retainer collar 7 so as to be movable up and down from below, and a large-diameter portion that can be brought into contact with the lower surface of the retainer collar 7 at the lower end portion of the punch driver 9 15 is provided. A lower flange 19 is formed at the lower portion of the large-diameter portion 15. The lower flange 19 is loosely held between the retainer collar 7 and an annular projecting portion 17 projecting inwardly on the upper inner peripheral surface of the punch guide 5. It is.

  The retainer collar 7 and the punch driver 9 rotate integrally, but only the punch driver 9 moves up and down, and the retainer collar 7 is formed in a vertical key groove 21 formed on the outer peripheral surface of the punch driver 9. The key 23 provided in the is engaged. Between the punch head 11 attached to the upper end portion of the punch driver 9 via a plurality of bolts 25 and the retainer collar 7, a strong disc spring, coil spring, urethane as an example of the elastic means 13 for strips is provided. An elastic member 27 such as rubber is elastically mounted, and the punch driver 9 is always urged upward.

  In order to rotatably support the retainer collar 7 with respect to the punch guide 5, a circumferential groove 29 is formed on the lower surface of the retainer collar 7. A plurality of engaging recesses 31 are provided at appropriate intervals in the circumferential direction. A radial (radial) guide groove 33 is formed on the upper surface of the flange portion 5F of the punch guide 5. The slide member 35 slidably engaged in the guide groove 33 has an upper end. A stopper pin 37, which is movable to the position of the circumferential groove 29 and the position engaged with the engagement recess 31, is attached. The slide member 35 is biased by an elastic member 39 such as a coil spring mounted in the guide groove 33 so as to keep the stopper pin 37 engaged with the engagement recess 31 at all times. Yes.

  In the above configuration, when the slide member 35 is moved against the urging force of the elastic member 39 and the stopper pin 37 is moved from the position engaged with the engagement recess 31 to the position engaged with the circumferential groove 29, the retainer collar 7 is rotatable with respect to the punch guide 5.

Therefore, when the retainer collar 7 is rotated with respect to the punch guide 5, the punch driver 9 is also integrally rotated through the key 23.

  Thereafter, when the movement of the slide member 35 against the urging force of the elastic member 39 is released, the stopper pin 37 is engaged with the separate engaging recess 31 by the urging force of the elastic member 39, and the retainer collar 7 is rotated. Fixed to immovable state.

  Since the position where the circumferential groove 29 and the engagement recess 31 are provided and the position where the stopper pin 37 is provided are relative, the circumferential groove 29 and the engagement recess are formed on the upper surface of the flange portion 5F of the punch guide 5. 31 and a stopper pin 37 whose lower end is freely engageable with the circumferential groove 29 and the engaging recess 31 protrudes downward from the retainer collar 7 and is movable in the radial direction. .

  In the punch guide 5, a punch body 43 having a punch blade 41 at the lower end is fitted so as to be movable up and down. The punch body 43 is divided into an upper punch body 43U and a lower punch body 43L, and the upper and lower punch bodies 43U, 43L are integrally connected by a connector 45.

  More specifically, an upper protrusion 51 protruding upward is provided at the center of the upper surface of the upper punch body 43U, and the outer peripheral surface of the upper protrusion 51 is formed on the inner peripheral surface of the punch driver 9. A male screw portion 49 is formed to be screwed to the formed female screw portion 47 so that the vertical position can be adjusted.

  On the upper surface of the upper punch body 43U facing the lower surface of the punch driver 9, an elastic member 53 such as urethane rubber for preventing close contact between the lower surface and the upper surface is provided so as to protrude upward. The position where the elastic member 53 is provided is relative, and may be provided so as to protrude downward on the lower surface of the punch driver 9.

  Further, a key 57 engaged with a key groove 55 provided in the punch guide 5 so as to be movable up and down is integrally attached to the lower surface of the upper punch body 43U by a plurality of bolts 59. A mark 61 such as a horizontal line marking indicating the vertical position relative to the punch guide 5 is provided on the outer surface of the key 57, and on the outer side of the key groove 55 corresponding to the mark 61, An adjustment mark 63 indicating the adjustment range of the punch blade portion 41 is provided.

  When the upper surface or the lower surface of the key 57 is a mark, the mark 61 can be omitted, and by looking at the positional relationship between the vertical position of the mark 61 of the key 57 and the adjustment mark 63, The amount of wear after re-polishing of the punch blade 41 can be known. In other words, the adjustment mark 63 functions as a kind of wear amount scale. Therefore, the wear amount of the punch blade 41 or the remaining polishing allowance can be known from the positional relationship between the marks 61 and 63.

  In order to match the direction of the upper punch body 43U and the lower punch body 43L, a key groove 65 that engages with the key 57 is formed on the upper surface of the lower punch body 43L. The lower punch body 43 having the punch blade portion 41 at the lower end thereof is formed at the lower portion of the upper punch body 43U by the connecting tool 45 penetrating the upper protruding portion 51 of the upper punch body 43U from above. Removably attached.

  The connector 45 is a bolt provided with a fluid passage 67 penetrating vertically in the axial center, and an oil mist or the like supplied via the fluid passage 67 to the lower punch body 43L screwed with the bolt. A guide hole 69 for guiding the fluid to the outer peripheral surface of the lower punch body 43L is provided as appropriate.

  Accordingly, the fluid supplied from the striker ST provided in a punch press (not shown) through the puncher 11 through the through hole 11H of the punch head 11 and the through hole 9H of the punch driver 9 is supplied to the fluid passage 67 of the connector 45 and the fluid. A small diameter portion 43S of the lower punch body 43L having the punch blade portion 41 at the lower end thereof is guided through the guide hole 69 between the outer peripheral surface of the lower punch body 43L and the inner peripheral surface of the punch guide 5 for lubrication. And the annular compression chamber 71 between the lower inner peripheral surface of the punch guide 5.

  A disc-shaped stripper plate 73 surrounding the punch blade 41 is detachably attached to the lower end of the punch guide 5. The stripper plate 73 has a through hole in which the punch blade portion 41 is fitted in the central portion, and an engagement groove 75 such as a circumferential groove is formed on the outer peripheral surface. In order to detachably support the stripper plate 73 with respect to the lower end portion of the punch guide 5, locking portions 77 that can be engaged with the engagement grooves 75 are provided at a plurality of locations on the outer peripheral surface of the lower end of the punch guide 5. A swing lock piece 79 provided at the lower end is supported so as to be swingable.

  More specifically, a hole provided in the upper portion of the rocking lock piece 79 in a lock piece support member 83 such as a pin or bolt attached to a notch 81 formed at a plurality of locations on the outer peripheral surface of the lower end of the punch guide 5. Are loosely fitted so as to be swingable inward and outward, and outwardly by an elastic member 85 such as a coil spring interposed between the swing lock piece 79 and the lower end of the punch guide 5. Is being energized. That is, the rocking lock piece 79 is supported by the lock piece support member 83 in a loosely suspended state without being integrally fastened and fixed to the punch guide 5.

  Then, the swinging member 77 is held against the urging force of the elastic member 85 so as to keep the engaging portion 77 at the lower end of the swinging lock piece 79 engaged with the engaging groove 75 of the stripper plate 73. A rotation ring 89 having a lock piece pressing portion 87 (see FIG. 2) for pressing the lock piece 79 inward is attached to the outer peripheral surface of the lower end portion of the punch guide 5 so as to be rotatable and fixed.

  More specifically, a ball storage hole 93 that rotatably stores a ball 91 (see FIG. 1) is formed at a plurality of positions at the lower end of the punch guide 5. A part of the rotating ring 89 protrudes outward and comes into contact with and contacts the inner peripheral surface of the rotating ring 89, thereby supporting the rotating ring 89 rotatably. In order to prevent the ball 91 from falling inward from the ball storage hole 93 and to close the inside of the ball storage hole 93, the punch guide 5 has an inner peripheral surface corresponding to the ball storage hole 93. A closing ring 95 is engaged in the formed circumferential groove.

  A notch recess 97 (see FIG. 2) having an inner opening is formed at a position where the rotation ring 89 corresponds to the swing lock piece 79, and the lock piece pressing portion 87 is formed in the notch recess 97. A pressing release portion 99 is formed adjacent to the lock piece pressing portion 87 so as to protrude in the direction and release the inward pressing of the swing lock piece 79.

  Therefore, as shown in FIG. 2, when the lock piece pressing portion 87 is in contact with the swing lock piece 79, the swing lock piece 79 is pressed inward. The locking portion 77 is engaged with the engaging groove 77 of the stripper plate 73. Then, in FIG. 2, when the rotation ring 89 is rotated counterclockwise so that the press releasing portion 99 corresponds to the swing lock piece 79, the press of the swing lock piece 79 is released, and the stripper plate 73 is attached and detached. It is possible to perform.

  In order to fix the rotating ring 89 in a non-moving state, an engagement recess 101 is formed at an appropriate position above the rotating ring 89 as shown in FIG. A lock member 107 having an engagement member 105 that can be engaged with the engagement recess 101 is provided in the recess 103 so as to be movable up and down, and is always moved by an elastic member 109 such as a coil spring. It is biased downward.

  The state in which the engagement member 105 is engaged with the engagement recess 101 of the rotation ring 89 is a state in which the lock piece pressing portion 87 presses the rocking lock piece 79 in an inward direction and is not rotatable. It is.

  By the way, the upper mold holder 3 is provided with a key (not shown) for keeping the direction of the upper mold apparatus 1 constant, and the punch guide 5 can be freely engaged with and disengaged from the key. Key groove 111 (see FIG. 1) is formed, and a key groove 113 (see FIG. 2) is formed at a position where the rotating ring 89 corresponds to the key groove 111. A take-out groove 115 such as a notch for removing the stripper plate 73 from the lower end of the punch guide 5 is formed at a position facing the key groove 113.

  In the configuration as described above, the upper mold apparatus 1 is mounted on the upper mold holder 3 in a punch press so as to be movable up and down in the same manner as a normal upper mold apparatus, and the punch head 11 is operated by a striker ST provided on the punch press so as to be movable up and down. The entire upper die apparatus 1 is lowered against the upper die holder 3 against a lifter spring (not shown), and the stripper plate 73 provided at the lower portion is a plate-like workpiece (not shown) to be punched. The workpiece is pressed against and fixed to a lower die (not shown).

  Thereafter, when the striker ST is further lowered, the punch head 11, the punch driver 9, and the upper and lower punch bodies 43U, 43L are integrally lowered with respect to the punch guide 5 against the biasing force of the strip elastic means 13. The workpiece is punched with the punch blade 41 in cooperation with the die.

  When the punch head 11 is struck and lowered by the striker ST as described above, when a fluid such as oil mist is supplied from a fluid supply port (not shown) provided in the striker ST to the through hole 11H of the punch head 11, the pressure is increased. The fluid reaches the gap between the outer peripheral surface of the lower punch body 43L and the inner peripheral surface of the punch guide 5 through the fluid passage 67 of the connector 45 and the guide hole 69 of the lower punch body 43L, and performs lubrication and an annular compression chamber 71. Flow into.

  When the punch body 43 is lowered with respect to the punch guide 5, the fluid in the compression chamber 71 is compressed, and the workpiece is punched out by the punch blade 41, and at the same time, the periphery of the punch blade 41 and the stripper plate 73. It is ejected downward from a minute gap between the inner peripheral surface of the through hole, and the blank or scrap in the die is ejected so as to be ejected downward.

  As described above, when the fluid in the annular compression chamber 71 is compressed, the ball storage hole 93 tends to be ejected to the outside. However, since the ball storage hole 93 is closed by the closing ring 95, the ball storage hole 93. Can be prevented from being ejected, and the fluid can be effectively compressed in the compression chamber 71.

  When the punch blade portion 41 is worn and needs to be re-polished, the stripper plate 73 is removed and the lower punch body 43L is removed while the upper die apparatus 1 is detached from the upper die holder 3 to remove the punch blade. The portion 41 is re-polished.

  To remove the stripper plate 73 from the lower end portion of the punch guide 5, the locking member 107 is moved upward against the elastic member 109 in FIG. Leave 105. In FIG. 2, when the rotation ring 89 is rotated in the counterclockwise direction to release the inward pressing of the swing lock piece 79 by the lock piece pressing portion 87, the swing lock piece 79 is moved to the elastic member 85. As a result, the engaging portion 77 of the rocking lock piece 79 is disengaged from the engaging groove 75 of the stripper plate 73, and the stripper plate 73 is released from being fixed.

  Thereafter, the stripper plate 73 can be removed from the lower end portion of the punch guide 5 by inserting a finger into the take-out groove 115 of the rotating ring 89 and gripping the stripper plate 73.

  After removing the stripper plate 73 from the punch guide 5 as described above, an appropriate tool is inserted into the through holes 11H and 9H of the punch head 11 and the punch driver 9 and the connecting tool 45 is rotated and loosened, whereby the upper punch body 43U. The lower punch body 43L can be removed downward. After removing the lower punch body 43L and re-grinding the punch blade portion 41 in this way, it is inserted into the punch guide 5 from below and the upper surface of the lower punch body 43L is brought into contact with the lower surface of the upper punch body 43U, and By tightening the connector 45, the upper and lower punch bodies 43U and 43L can be fixed integrally.

  Thereafter, the slide member 35 is moved against the elastic member 39, and the punch driver 9 is rotated through the punch head 11 in a state where the stopper pin 37 is positioned at the position of the circumferential groove 29 of the retainer collar 7. The male threaded portion 49 of the upper punch body 43U that is screwed into the female threaded portion 47 of the punch driver 9 rotates relative to the upper and lower punch bodies 43U and 43L. As a result, height adjustment is performed. That is, the punch body 43 is adjusted downward by an amount corresponding to the re-polishing amount of the punch blade portion 41.

  Here, by looking at the positional relationship between the mark 61 of the key 57 and the adjustment mark 63 provided outside the key groove 55, the total amount of re-polishing amount of the punch blade part 41 can be known, and the punch blade part It is possible to know whether or not 41 has a margin for re-polishing, that is, whether or not the lower punch body 43L is near the life to be replaced.

  As described above, after the lower punch body 43L is integrally attached to the lower portion of the upper punch body 43U, the stripper plate 73 is attached to the lower end portion of the punch guide 5, and the rotating ring 89 is rotated in the clockwise direction. 2, when the rocking lock piece 79 is pressed inward by the lock piece pressing portion 87, the engaging portion 77 of the rocking lock piece 79 is engaged with the engagement groove 75 of the stripper plate 73, and the stripper The plate 73 is fixed.

  Thereafter, as shown in FIG. 3, by engaging the engagement member 105 with the engagement recess 101 of the rotation ring 89, the rotation ring 89 is fixed in an unrotatable state and is in an initial state. The rotation ring 89 is prevented from rotating due to vibration or the like during processing, and the fixed state of the stripper plate 73 is maintained.

  By the way, when the rocking lock piece 79 is pressed inward and outward as described above, the rocking lock piece 79 is loosely supported by the lock piece support member 83 so that the rocking lock piece 79 is rocked. Therefore, the rocking lock piece 79 is not broken even when used for a long time.

  In addition, when the upper punch body 43U is relatively vertically adjusted by rotating the punch driver 9 with respect to the upper punch body 43U as described above, the lower surface of the punch driver 9 and the upper surface of the upper punch body 43U come close to each other. Since the elastic member 53 is compressed and the resistance is increased, it can be known that the lower surface and the upper surface are close to each other, and the upper surface and the lower surface are brought into close contact with each other so that the female screw portion 47 and the male screw portion 49 are connected. Tightening can be prevented in advance.

  In the above configuration, the lower punch body 43L and the stripper plate 73 can be changed to change the shape of the punch blade portion 41, so that the other components can be made common and the common parts can be standardized. Even if the shape of the punch blade portion is various, it can be easily and quickly manufactured.

It is a section explanatory view of the upper mold device concerning an embodiment of the invention. It is bottom face explanatory drawing of the upper mold | type apparatus which concerns on embodiment of this invention. It is explanatory drawing of the principal part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Upper mold apparatus 5 Punch guide 7 Retainer collar 9 Punch driver 11 Punch head 13 Strip elastic means 29 Circumferential groove 31 Engaging recess 37 Stopper pin 41 Punch blade part 43 Punch body 43U Upper punch body 43L Lower punch body 45 Connecting tool 47 Female thread portion 49 Male thread portion 57 Key 61 Mark 63 Adjustment mark 67 Fluid passage 69 Guide hole 71 Compression chamber 73 Stripper plate 75 Engagement groove 77 Locking portion 79 Swing lock piece 83 Lock piece support member 85 Elastic member 87 Lock piece Pressing portion 89 Rotating ring 91 Ball 95 Closing ring 101 Engaging recess 105 Engaging member 107 Locking member 115 Extracting groove

Claims (5)

  A retainer collar is pivotably fixed on the upper surface of the punch guide, and a punch body with a punch blade at the lower end is provided in the punch guide to be movable up and down, and the upper portion of the punch body can be adjusted in the vertical position. A punch device having a female screw portion screwed to the upper die device is configured to rotate integrally with the retainer collar, and a plurality of engaging recesses are formed in a circumferential groove formed on a lower surface of the retainer collar. Can be moved to the position of the circumferential groove and the position of engagement with the engagement recess by the slide member slidably engaged in the radial guide groove formed on the upper surface of the punch guide. An upper die device comprising a stopper pin.   In the upper die apparatus in which a punch body provided with a punch blade portion at the lower end portion is provided in a cylindrical punch guide so as to be movable up and down, and a stripper portion surrounding the punch blade portion is provided at the lower end portion of the punch guide. A retainer collar provided on the upper portion of the punch guide is rotatably fixed. A punch driver having a punch head at the upper end portion is provided so as to be freely movable only in the vertical direction, and between the punch head and the retainer collar. Provided with a strip elastic means for urging the punch driver upward, and a circumferential groove is provided on the lower surface of the retainer collar or the upper surface of the punch guide provided on the upper portion of the punch guide and the inner side of the circumferential groove or A plurality of engaging recesses are provided in the circumferential direction at appropriate intervals on the outer side, and a stopper pin whose upper end or lower end is engageable with the circumferential groove and the engaging recess is provided in front. The stopper pin is attached to the upper part of the punch guide or the lower part of the retainer collar so as to be movable in the radial direction, and to always keep the upper end or the lower end of the stopper pin engaged with the engaging recess. An upper mold device characterized by being provided with force.   The upper die apparatus according to claim 2, wherein the punch body is divided into an upper punch body and a lower punch body, and the upper and lower punch bodies are integrally connected by a connecting tool, A male screw portion provided on the upper portion of the upper punch body is screwed to the formed female screw portion so that the vertical position can be adjusted, and a key engaged with a key groove formed on the punch guide is adjustable in the vertical position. An upper mold apparatus provided on the upper punch body.   4. The upper mold apparatus according to claim 3, wherein an elastic member for preventing adhesion between the upper surface and the lower surface is provided on the upper surface of the upper punch body or the lower surface of the punch driver. .   5. The upper mold apparatus according to claim 3, wherein the upper and lower punch bodies are connected to each other by a bolt having a fluid passage, and the lower punch body sends the fluid supplied through the fluid passage to the outer peripheral surface. An upper mold apparatus comprising a guide hole for guiding.

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