JPH11254057A - Punching die and its assembling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use punches of different shapes with a same holder, and to attain decrease of cost and easier working by using punches and a holder through an adapter. SOLUTION: A holder 7 and an upper turret 3 are engaged through a key 9. Inside the holder 7 an adapter 23 with a thickness T corresponding to a diameter of a punch is fitted. Among a plurality of punch positioning key ways 27 formed in the adapter 23, through selection so as to obtain a desired angle of a blade edge 33 of a punch 5, the adapter is engaged with a key 9, and a key pin 31 provided to the punch 5 is engaged with a key way 29 for the key pin provided the adapter 23. A pull-bolt 17 for fixing the punch 5 to in the holder 7 through the adapter 23 is provided; thus a punching die 1 is constituted. Punches 5 of different shapes are used with a same holder 7, so that decrease of cost and easier working are attainable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch die and an assembling method.

[0002]

2. Description of the Related Art Conventionally, a punch die used for a turret punch press, for example, uses one punch and one punch holder corresponding to one die size (usually called a station). It is common.

That is, as shown in FIGS. 12 and 13, a plurality of punch dies are arranged in a circumferential direction of an upper turret 101, and punch dies 103 are mounted thereon. The punch die 103 is composed of a holder 107 having a punch 105, and a key 109 extending along the axial direction is fixed to the outer periphery of the holder 107 by a plurality of fastening bolts 111.
1 is engaged with the key groove 113 formed.

The head 107A of the holder 107 is engaged with the pressing member 115. A cylindrical hole 123 into which 105 is inserted is formed. Further, the holder 107
At the lower end of the rectangular part 12 formed on the punch 105
The positioning part 127 with which 5 engages is formed. In addition, a cutting edge 129 is formed at the tip of the punch 105, and the punch 105 is provided with a screw groove 105A into which a screw 117C provided on the pull bolt 117 is screwed. A stripper 131 made of, for example, urethane is provided below the holder 107.

[0005]

By the way, in the conventional punch die 103 described above, when the shape of the punch 105 changes, the shape of the holder 107 also changes. Further, in order to determine the direction of the cutting edge portion 129 of the punch 105, a square-shaped portion 125 is formed. In this shape, the yield (the square-shaped portion 125 has a larger diameter than the punch-hold portion).
And difficult to process (square shaped part 125 must be finished with the same dimensions as punch hold part and four side processing is required)
There was a problem that is.

SUMMARY OF THE INVENTION An object of the present invention is to provide a punch die and an assembling method in which punches having different shapes can be used with the same holder by using a punch and a holder via an adapter, thereby reducing costs and facilitating machining. It is in.

[0007]

According to a first aspect of the present invention, there is provided a punch die according to the present invention, wherein an adapter having a thickness corresponding to a punch diameter is detachably mounted in a holder. A first positioning portion for punch positioning formed at a predetermined position on the outer periphery of the adapter and the first locking portion are provided so as to be freely disengaged, and a punch having a blade edge portion is mounted in the adapter and provided on the punch. The second locking portion and the second engaging portion formed on the adapter are provided so as to be freely disengaged.

According to a fourth aspect of the present invention, there is provided a method for assembling a punching die having an adapter between a punch and a holder. An adapter assembling step of mounting an adapter having a corresponding thickness, (B) during the adapter assembling step,
Punch positioning first provided at multiple positions on the outer circumference of the adapter
An adapter positioning assembling step of selecting a first positioning portion for punch positioning such that a blade edge portion of the punch is at a desired position among the engaging portions and engaging with a first locking portion provided on the holder; C) After the adapter positioning and assembling step, a punch assembling step of engaging and positioning a second locking portion provided on the punch with a second engaging portion provided on the adapter, and (D) the punch assembling step. And a punch die assembling step of integrally providing the holder, the adapter, and the punch after the end.

Therefore, by the above-described punch die and the assembling method according to the first and fourth aspects, the holder provided on the punch die and, for example, the die support member are connected via the first locking portion, An adapter having a thickness corresponding to the punch diameter was mounted in the holder, and the first engagement portion for punch positioning provided on the adapter and the first locking portion were provided so as to be freely disengaged. And put the punch in the adapter,
A second locking portion provided on the punch and a second engaging portion formed on the adapter are provided so as to be freely disengaged, and the punch is fixed to the holder via the adapter.

By using the adapter and the punch and the holder via the adapter, punches having different shapes can be used with the same holder, and the cost can be reduced. In addition, the punch is formed by a second locking portion on a cylindrical punch,
The second engaging portion for determining the direction of the punch can be machined in an arbitrary direction in advance in the adapter, and the punch itself, which is a consumable tool, need only machine the minimum second engaging portion. Further, the processing of the key groove and the key for positioning the punch on the holder is not required, and the processing can be facilitated.

According to a second aspect of the present invention, there is provided a punch die according to the present invention.
An adapter having a thickness corresponding to the punch diameter is detachably mounted in the holder, and the first engagement portion for punch positioning formed at a predetermined position on the outer periphery of the adapter is disengaged from the first engagement portion. A punch provided with a cutting edge portion is provided in the adapter, a polygonal portion is formed on the punch to set the cutting edge portion of the punch at a plurality of angular positions, and the polygonal portion is attached to the adapter. It is characterized in that the positioning portion is provided so as to be freely disengaged.

According to a fifth aspect of the present invention, there is provided a method for assembling a punching die having an adapter between a punch and a holder. An adapter assembling step of mounting an adapter having a corresponding thickness, (B) during the adapter assembling step,
Punch positioning first provided at multiple positions on the outer circumference of the adapter
An adapter positioning assembling step of selecting a first positioning portion for punch positioning such that a blade edge portion of the punch is at a desired position among the engaging portions and engaging with a first locking portion provided on the holder; C) After the adapter positioning and assembling step, the direction of the polygonal portion formed on the punch is selected so that the desired angular position of the blade edge portion of the punch is positioned on the positioning portion formed on the adapter, and the punch is inserted into the adapter. And (D) a punch die assembling step of integrally providing a holder, an adapter and a punch after the punch assembling step is completed.

Therefore, by using the punch die and the assembling method according to the second and fifth aspects of the present invention, the holder provided on the punch die and, for example, the die support member are connected via the first locking portion. An adapter having a thickness corresponding to the punch diameter was mounted in the holder, and a plurality of first positioning portions for punch positioning provided on the adapter and the first locking portions were provided so as to be freely disengaged. Then, a polygonal portion is formed on the punch in order to set the cutting edge portion of the punch at a plurality of angular positions, and the polygonal portion is provided on the positioning portion provided on the adapter so as to be capable of engaging and disengaging. Fix to the holder.

Thus, by using the adapter and the punch and the holder via the adapter, punches having different shapes can be used with the same holder, and the cost can be reduced. Further, a first engaging portion for determining the direction of the punch can be machined in the adapter in an arbitrary direction in advance, and the punch only needs to machine a minimum first engaging portion. Further, the processing of the key groove and the key pin for positioning the punch in the holder is not required, and the processing can be facilitated.

According to a third aspect of the present invention, there is provided a punch die according to the present invention.
A punch die according to claim 1 or 2, wherein an adjusting member for adjusting a punch height is provided in said holder, and said punch is provided with a first gear portion on an outer periphery of said adjusting member, and said first gear portion is provided on said first gear portion. A second gear portion to be engaged is rotatably provided on the holder.

According to a sixth aspect of the present invention, there is provided a method for assembling a punching die according to the present invention, wherein (A) a first gear formed on an adjusting member. And an adjusting member assembling step of incorporating an adjusting member for screwing the adjusting member into the holder after the second gear portion is meshed with the second gear portion.

Therefore, an adjusting member is provided in the punch holder according to the third and sixth aspects of the present invention, and
Fine adjustment of the punch height is performed by turning the gear by rotating the gear.

By providing the adjusting member, the punch height can be easily adjusted, and the workability can be improved.

According to a seventh aspect of the present invention, there is provided the punch mold assembling method, wherein the second engaging portion provided on the punch is provided at a desired second engaging portion of the plurality of second engaging portions formed on the adapter. After engaging and assembling the punch to the adapter, the adapter is assembled to the holder.

Therefore, the punch is assembled to the adapter by engaging the second engaging portion provided on the punch with a desired second engaging portion of the plurality of second engaging portions formed on the adapter. Next, the punch die is assembled by assembling the adapter with the holder.

Thus, by using the adapter and the punch and the holder via the adapter, punches having different shapes can be used with the same holder, and the cost can be reduced. Further, a first engaging portion for determining the direction of the punch can be machined in the adapter in an arbitrary direction in advance, and the punch only needs to machine a minimum first engaging portion. Further, the processing of the key groove and the key pin for positioning the punch in the holder is not required, and the processing can be facilitated.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

First, a first embodiment will be described. Referring to FIGS. 1 and 2, a plurality of punch dies 1 are arranged in the circumferential direction of an upper turret 3 of a turret punch press as an example of a die supporting member. The punch die 1 is composed of a holder 7 having a punch 5, and a key 9 as an example of a first locking portion extending along the axial direction on the outer periphery of the holder 7 is formed by a plurality of fastening bolts 11. The key 9 is engaged with a key groove 13 formed in the upper turret 3.

The head 7A of the holder 7 is engaged with the pressing member 15, and a hole 19 into which a head 17A of a pull bolt 17 as an example of a bolt enters the shaft and a through hole into which a shaft 17B of the pull bolt 17 enters. 21 and a cylindrical hole 25 into which the adapter 23 is inserted.

Referring to FIG. 3, FIG. 4 and FIG. 5, the adapter 23 has a plurality of predetermined positions (0 degrees, 4 degrees) on the outer periphery of a flange 23A provided below the adapter 23.
A punch positioning key groove 27 as an example of a punch positioning first engagement portion is formed at 5 degrees, 90 degrees, 135 degrees, and the like, and this punch positioning key groove 27 is engaged with the key 9. . A key pin key groove 29 as an example of a second engagement portion is formed at a lower end of the adapter 23, and a key pin as an example of a second locking portion provided in the punch 5 in the key pin key groove 29. 31 is detachable. The thickness T of the adapter 23 is changed depending on the outer diameter of the punch 5.

The punch 5 has a cutting edge 33 and a thread groove 35 into which a thread 17C formed on the pull bolt 17 is screwed. A screw 37 is formed on the outer periphery of the lower end of the adapter 23 as shown in FIG. 5, and a stripper 39 is screwed to the screw 37. As the material of the stripper 39, a soft material such as urethane or aluminum is mainly used.

With the above configuration, as a method of assembling the punch die 1, first, an adapter 23 having a thickness T corresponding to the punch diameter in the holder 7 is incorporated, and a punch positioning key provided on the outer periphery of the adapter 23 is provided. The groove 27 is selected so that the cutting edge 33 of the punch 5 has a desired angle, and is engaged with the key 9 provided on the holder 7. Then, the stripper 39 is screwed into the adapter 23 and the adapter 2
The key pin 11 provided on the punch 5 is engaged with the key groove 29 provided on the key pin 3 and the holder 7, the adapter 23 and the punch 5 are connected by the pull bolt 17, and the assembling operation is completed.

Thus, by using the punch 5 and the holder 7 via the adapter 23, the punches 5 having different shapes can be used with the same holder 7, and the cost can be reduced. Also, simply providing the key pin 31 on the punch 5,
The holder 7 does not need to process a key groove or a key pin for positioning the punch 5, and can facilitate the processing.

Next, a second embodiment will be described. The same members as those used in the above-described first embodiment are denoted by the same reference numerals, and description thereof is omitted.

Referring to FIGS. 6 and 7, a plurality of punch dies 1 are arranged in a circumferential direction of an upper turret 3 of, for example, a turret punch press as an example of a die supporting member. The punch die 1 is a holder 7 having a punch 41.
A key 9 as an example of a first locking portion extending along the axial direction is fixed to the outer periphery of the holder 7 with a plurality of fastening bolts 11, and the key 9 is attached to the upper turret 3.
Is engaged with the key groove 13 formed at the bottom.

The head 7A of the holder 7 is engaged with the pressing member 15, and a hole 19 in which a head 17A of a pull bolt 17 as an example of a bolt enters the shaft and a through hole in which a shaft 17B of the pull bolt 17 enters. 21 and a cylindrical hole 25 into which the adapter 43 is inserted.

Referring to FIG. 8 and FIG. 9, the adapter 43 is located at a plurality of predetermined positions (0 degrees, 135 degrees, etc.) on the outer periphery of the flange 43A provided below the adapter 43. A key groove 27 for punch positioning is formed as an example of a first engagement portion for use. The key groove 27 for punch positioning is selected and engaged with the key 9. A positioning portion 45, which is a slit parallel portion, is formed at the lower end of the adapter 43. A square portion 47 as an example of a polygonal portion formed on the punch 41 is fitted into the positioning portion 45, The position of the cutting edge 33 of the punch 41 is freely selectable between 0 degree and 90 degrees. The thickness T of the adapter 43 is
1 is changed according to the size of the outer diameter.

The punch 41 has a thread groove 35 into which a thread 17C formed on the pull bolt 17 is screwed. A screw 37 is formed on the outer periphery of the lower end of the adapter 43, and a stripper 39 is screwed to the screw 37.

With the above configuration, as a method of assembling the punch die 1, first, an adapter 43 having a thickness T corresponding to a punch diameter is incorporated into the holder 7, and a punch positioning key provided on the outer periphery of the adapter 43. The groove 27 is selected so that the cutting edge 33 of the punch 41 has a desired angle, and is engaged with the key 9 provided on the holder 7. Then, the direction of the quadrangular portion 47 formed on the punch 41 of the positioning portion 45 provided on the adapter 43 is selected so as to be the desired angular position of the cutting edge portion 33, and the stripper 39 is screwed to the adapter 43, and The holder 7, the adapter 43, and the punch 41 are connected by the pull bolt 17, and the assembling operation is completed.

The punch 41 and the holder 7 are connected to each other through the adapter 43 so that the punches 41 having different shapes are formed.
Can be used in the same holder 7, and cost reduction can be achieved. Further, the holder 7 does not need to process a key groove or a key pin for positioning the punch 41, so that the processing can be facilitated.

Next, a third embodiment will be described. The same members as those used in the above-described second embodiment are denoted by the same reference numerals, and description thereof will be omitted.

Referring to FIGS. 10 and 11, a plurality of punch dies 1 are arranged in a circumferential direction of an upper turret 3 of, for example, a turret punch press as an example of a die supporting member. The punch die 1 is composed of a holder 49 provided with a punch 41, and a key 9 extending along the axial direction is fixed to the outer periphery of the holder 49 with a plurality of fastening bolts 11. It is engaged with a key groove 13 formed in the turret 3.

The head 49A of the holder 49 is
5, a hole 19 in which the head 17A of the pull bolt 17 as an example of a bolt enters the shaft core, a through hole 21 in which the shaft portion 17B of the pull bolt 17 enters, and an adjusting screw 51 as an example of an adjusting member. A screw hole 53 to be screwed and a cylindrical hole 25 into which the adapter 43 is inserted are formed.

The adapter 43 has a key groove 27 for punch positioning at a plurality of predetermined positions (0 degree, 135 degree, etc.) on the outer periphery of a flange 43A provided below the adapter 43.
The key groove 27 for punch positioning is selected and engaged with the key 9. At the lower end of the adapter 43, a positioning portion 45, which is a slit parallel portion, is formed. A square portion 47 formed on the punch 41 is fitted into the positioning portion 45,
The position of the first cutting edge 33 can be freely selected to be 0 degree or 90 degrees. The thickness T of the adapter 43 is changed according to the outer diameter of the punch 41.

The punch 41 has a thread groove 35 into which a thread portion 17C formed on the pull bolt 17 is screwed. A screw 37 is formed on the outer periphery of the lower end of the adapter 43, and a stripper 39 is screwed to the screw 37.

Adjustment screw 5 screwed into holder 49
1 is provided with a gear portion 55 as a first gear portion, and a small gear 59 as a second gear portion mounted in a cutout portion 57 formed in the holder 49 meshes with the gear portion 55. The gear 59 is connected to a rotating shaft 63 via a key 61, and the rotating shaft 63 is provided rotatably with the holder 49.
Therefore, when the rotating shaft 63 is rotated, the gear portion 55 provided on the adjusting screw 51 is rotated via the small gear 59 to move the adjusting screw 51 in the up-down direction, and the punch height can be adjusted.

With the above configuration, as a method of assembling the punch die 1, first, the small gear 59 meshed with the gear portion 55 formed on the adjusting screw 51 is rotated to set the adjusting screw 51 to a required punch height. . Then, an adapter 43 having a thickness T corresponding to the punch diameter is incorporated into the holder 49, and the key groove 27 for punch positioning provided on the outer periphery of the adapter 43 is adjusted so that the cutting edge 33 of the punch 41 has a desired angle. Select and engage the key 9 provided on the holder 49.

Further, the positioning portion 4 provided on the adapter 43
5 is selected so that the direction of the quadrangular portion 47 formed on the punch 41 is at the desired angular position of the cutting edge 33, and the stripper 39 is screwed into the adapter 43, and the holder 49, the adapter 43, the punch 41 Are connected by the pull bolt 17, and the assembling operation is completed. In addition, the above-mentioned punch die 1
The configuration and the assembling method of the second embodiment are the
However, the adjusting screw 51 can be incorporated in the first embodiment.

Thus, the punch 41 and the holder 49 are interposed by the adapter 43 so that the punches 4 having different shapes are formed.
1 can be used with the same holder 49, and cost reduction can be achieved. Further, the holder 49 does not need to process a key groove or a key pin for positioning the punch 41, and can facilitate the processing. Further, the provision of the adjustment screw 51 facilitates adjustment of the punch height, thereby improving workability.

As another method of assembling the punch die, the punch 5 is inserted into a desired key pin key groove 29 among the key pin key grooves 29 as an example of the plurality of second engagement portions formed in the adapter 23. The punch 5 is attached to the adapter 23 by engaging the key pin 31 as an example of the second locking portion provided in the step S1. Next, the adapter 23 is attached to the holder 7 to assemble a punch die.

By using the punch 5 and the holder 7 via the adapter 23, the punches 5 having different shapes can be used with the same holder, and the cost can be reduced.
Further, a keyway 29 for a key pin that determines the direction of the punch can be formed in the adapter 23 in an arbitrary direction in advance, and only a minimum number of keys 9 need to be formed in the punch 5. Further, the processing of the key groove 27 and the key pin 31 for positioning the punch 5 in the holder 7 is not required, and the processing can be facilitated.

The present invention is not limited to the above-described embodiment of the present invention, but can be embodied in other forms by making appropriate changes.

[0048]

As will be understood from the above description of the embodiments, according to the present invention according to claims 1 and 4,
A holder provided on a punch die and a die supporting member, for example, are connected via a first locking portion, and an adapter having a thickness corresponding to a punch diameter is mounted in the holder, and a plurality of adapters are provided on the adapter. The first engaging portion for punch positioning and the first locking portion are provided so as to be freely disengaged. Then, a punch is mounted in the adapter, and a second locking portion provided on the punch and a second engaging portion formed on the adapter are provided so as to be able to be disengaged from each other, and the punch is fixed to the holder via the adapter.

By using the adapter and the punch and the holder via the adapter, punches having different shapes can be used with the same holder, and the cost can be reduced. In addition, the punch is formed of a cylindrical second punch with a second locking member, and the adapter can be preformed with a second engaging member that determines the direction of the punch in an arbitrary direction. Some punches only need to process a minimum number of keys. Further, the processing of the key groove and the key pin for positioning the punch in the holder is not required, and the processing can be facilitated.

According to the second and fifth aspects of the present invention, the holder provided on the punch die and, for example, the die supporting member are connected to the first die.
An adapter having a thickness corresponding to the diameter of the punch is mounted in the holder, and a plurality of first positioning portions for punch positioning provided on the adapter and the first locking portion are connected. It was provided so that it could be freely engaged and disengaged. Then, a polygonal portion is formed on the punch in order to set the cutting edge portion of the punch at a plurality of angular positions, and the polygonal portion is provided on the positioning portion provided on the adapter so as to be capable of engaging and disengaging. Fix to the holder.

By using the punch and the holder via the adapter, punches having different shapes can be used with the same holder, and the cost can be reduced. In addition, the first engagement portion for determining the direction of the punch can be machined in the adapter in any direction in advance, and the punch needs only to machine the minimum first engagement portion. Further, the processing of the key groove and the key pin for positioning the punch in the holder is not required, and the processing can be facilitated.

According to the third and sixth aspects of the present invention, fine adjustment of the punch height is performed by providing an adjusting member in the punch holder and turning the adjusting member by rotating the second gear.

Thus, the provision of the adjusting member facilitates the adjustment of the punch height, thereby improving the workability.

According to the seventh aspect of the present invention, the second engaging portion provided on the punch is engaged with a desired second engaging portion of the plurality of second engaging portions formed on the adapter, thereby forming the punch. Is attached to the adapter. Next, the punch die is assembled by assembling the adapter with the holder.

By using the adapter and the punch and the holder via the adapter, punches having different shapes can be used with the same holder, and the cost can be reduced. Further, a first engaging portion for determining the direction of the punch can be machined in the adapter in an arbitrary direction in advance, and the punch only needs to machine a minimum first engaging portion. Further, the processing of the key groove and the key pin for positioning the punch in the holder is not required, and the processing can be facilitated.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention and is a cross-sectional view of a punch die.

FIG. 2 is a bottom view as viewed from below in FIG. 1;

FIG. 3 is an enlarged sectional view of the adapter.

FIG. 4 is a bottom view seen from the right side in FIG. 3;

FIG. 5 is an enlarged explanatory view of a portion viewed from an arrow V in FIG. 3;

FIG. 6 shows a second embodiment of the present invention and is a cross-sectional view of a punch die.

FIG. 7 is a bottom view as viewed from below in FIG. 6;

FIG. 8 is an enlarged sectional view of the adapter.

FIG. 9 is a bottom view seen from the right side in FIG. 8;

FIG. 10 shows a third embodiment of the present invention and is a cross-sectional view of a punch die.

FIG. 11 is a bottom view as viewed from below in FIG. 10;

FIG. 12 shows a conventional example and is a cross-sectional view of a punch die.

FIG. 13 is a plan view seen from above in FIG. 12;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Punch die 3 Upper turret (die supporting member) 5,41 Punch 7,49 Holder 9 Key (first locking portion) 23,43 Adapter 27 Punch positioning key groove (Punch positioning first groove)
Engaging part) 29 Key pin keyway (second engaging part) 31 Keypin (second locking part) 33 Cutting edge 39 Stripper 45 Positioning part 47 Square part (polygonal part) 51 Adjusting screw (adjusting member) 55 Gear part (first gear part) 59 Small gear (second gear part)

Claims (7)

[Claims] An adapter having a thickness corresponding to the diameter of a punch is detachably mounted in a holder, and a first positioning portion for punch positioning formed at a predetermined position on an outer periphery of the adapter and a first portion provided on the holder. A first locking portion is provided so as to be capable of being disengaged and detached, a punch having a blade tip portion is mounted in the adapter, and a second locking portion provided on the punch and a second
A punch die, wherein an engaging portion is provided so as to be freely disengaged. 2. An adapter having a thickness corresponding to a punch diameter is detachably mounted in a holder, and a first positioning portion for punch positioning formed at a predetermined position on an outer periphery of the adapter and a first engaging portion provided on the holder. (1) A latch having a locking portion is provided so as to be freely disengaged, a punch having a cutting edge portion is mounted in the adapter, and a polygonal portion is formed on the punch to set the cutting edge portion of the punch at a plurality of angular positions. A punch die, wherein the polygonal portion is provided on a positioning portion provided on the adapter so as to be freely engaged and disengaged. 3. An adjusting member for adjusting a punch height, which is in contact with an upper surface of the adapter, is provided in the holder so as to be vertically movable,
The punch metal according to claim 1 or 2, wherein a first gear portion is provided on an outer periphery of the adjusting member, and a second gear portion meshing with the first gear portion is rotatably provided on the holder. Type. 4. A method of assembling a punch die having an adapter between a punch and a holder, comprising: (A) an adapter assembling step of mounting an adapter having a thickness corresponding to a punch diameter into the holder. (B) the punch positioning first engaging portion such that, among the first punching engaging portions provided at a plurality of positions on the outer periphery of the adapter at the time of the adapter assembling step, the edge of the punch is at a desired position; And (c) after the adapter positioning and assembling step is completed, a second engaging portion provided on the adapter and a second engaging portion provided on the punch. (2) a punch assembling step in which the engaging portion is engaged and positioned; (D) a punch die assembling step in which the holder, the adapter, and the punch are integrally provided after the punch assembling step is completed. Characterized in that Chi mold assembly methods. 5. A method of assembling a punch die having an adapter between a punch and a holder, comprising: (A) an adapter assembling step of mounting an adapter having a thickness corresponding to a punch diameter in the holder; (B) In the adapter assembling step, the punch positioning first engaging portion is set so that the blade edge of the punch is at a desired position among the punch positioning first engaging portions provided at a plurality of positions on the outer periphery of the adapter. An adapter positioning and assembling step of selecting and engaging with a first locking portion provided on the holder; (C) after the adapter positioning and assembling step is completed, a desired angular position of a blade edge portion of the punch to a positioning portion formed on the adapter Selecting the direction of the polygonal portion formed in the punch so that the punch is assembled into the adapter, and (D) after completion of the punch mounting step, the holder, the adapter and the punch Punch assembly method characterized by comprising comprises punch tool assembly process provided integrally, and, to a. 6. A method for assembling a punch die having an adapter between a punch and a holder, wherein a second gear portion is meshed with a first gear portion formed on an adjusting member, and then the adjusting member is moved to the holder. The method for assembling a punch die according to claim 4 or 5, further comprising: an adjusting member assembling step of incorporating an adjusting member to be screwed therein. 7. After assembling the punch with the adapter by engaging a second locking portion provided on the punch with a desired second engaging portion of the plurality of second engaging portions formed on the adapter. And a method of assembling a punch die, wherein the adapter is mounted on a holder.