JP2001105053A - Die assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a die assembly capable of easily conducting height adjustment without using a tool. SOLUTION: A spring collar 11 is arranged above a punch guide 3 internally mounting a punch body 9, an elevation restricting part 19 to restrict the movement of an elevation member 15 energized upward by an energizing means in the spring collar 11 is arranged in the spring collar 11, a punch head 23 is arranged, as freely elevating and freely adjusting a prescribed angle, on a lock member 21 attached to the spring collar 11, its upper end part is screwed into punch head 23, a lock device 31 as freely fixing the punch head 23 for the lock member 21 is arranged between the lock member 21 and punch head 23, the lock device 31 is provided with a lock piece 37 as freely engaging to an engaging recessed part 33 formed on the punch head 9 and an operating member 39 to disengage the lock piece 37 for the engaging recessed part 33.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold apparatus which is used by being mounted on a punch press such as a turret punch press, and more particularly, to easily perform height adjustment without using a tool. To a mold apparatus that can be used.

[0002]

2. Description of the Related Art For example, a punch die as a conventional die apparatus is configured such that a punch body is vertically movable within a punch guide which is vertically mounted on a punch holder (upper turret) in a punch press such as a turret punch press. In general, a powerful stripper spring is elastically mounted between a retainer collar mounted on the upper part of the punch guide and a punch head screwed to the upper end of the punch body so as to be vertically movable. .

[0003]

In the above construction, the tip of the punch body is re-ground to adjust the dimension from the upper surface of the punch head to the tip of the punch body. Is relatively rotated, the stripper spring mounted between the retainer collar and the punch head is strong, so that a jig is required, and the adjustment as described above is troublesome.

[0004] Therefore, a mold capable of adjusting the height without being affected by the biasing force of the stripper spring has been developed. As a prior example, there is Japanese Patent Application Laid-Open No. Hei 10-244327. In this prior example, the punch head is embedded in a spring collar containing a stripper spring, and it is necessary to greatly protrude the punch head from the spring collar at the time of adjusting the height. In addition, there is a problem that the overall configuration is relatively complicated.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the invention according to claim 1 has a spring collar mounted on an upper part of a punch guide in which a punch body is vertically movable. The lifting collar provided in the spring collar is provided in the spring collar with an upward / downward restricting portion that regulates the upward movement of the lifting member that is biased upward by the biasing means provided in the spring collar. The punch head can be moved up and down by the attached lock member,
An upper end of the punch body is threadably connected to the punch head from below through the spring collar and the elevating member so as to be freely contactable with the elevating member from above and to be rotatable at a predetermined angle. Configuration.

According to a second aspect of the present invention, in the mold apparatus according to the first aspect, a lock is provided between the lock member and the punch head so that the punch head is non-rotatably fixed to the lock member. This is a configuration provided with a device.

According to a third aspect of the present invention, in the mold apparatus according to the second aspect, the lock device includes a lock piece that is detachably engageable with an engagement recess formed in the punch head, and the lock piece includes the lock piece. And an operation member for engaging and disengaging the engagement recess.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a mold apparatus 1 according to an embodiment of the present invention includes a punch holder (upper turret, not shown) in a punch press such as a turret punch press. A punch guide 3 having a cylindrical shape movably supported is provided. Inside the punch guide 3, a punch blade portion 7 is provided at a lower end portion passing through a stripper plate 5 provided at a lower end portion of the punch guide 3. A punch body 9 is internally supported so as to be vertically movable.

A cylindrical spring collar 11 is mounted on the upper part of the punch guide 3 so as to be detachable and relatively non-rotatable via a pin 13. A ring-shaped elevating member 1 housed inside the spring collar 11 so as to be movable up and down.
An elastic member 17 such as a strong stripper spring is provided as a biasing means between the spring member 5 and the bottom of the spring collar 11.

A lock member 21 having a lower surface as an elevating / lowering restricting portion 19, which comes into contact with the elevating member 15 and is capable of restricting upward movement, is screwed and fixed to the upper portion of the spring collar 11. The lock member 21 is provided with a punch head 23 whose lower end portion is freely contactable with the elevating member 15 so as to be vertically movable and rotatable by a predetermined angle. A stopper ring 25 for preventing the punch head 23 from slipping out of the lock member 21 is attached near the lower end of the punch head 23, and the stopper ring 25 is provided on the lower surface of the lock member 21. A recess 27 having an appropriate depth is formed so as to freely enter and exit. A large-diameter flange portion is provided at an upper end portion of the punch head 23 projecting upward from the lock member 21.

An upper end of the punch body 9 which passes through the spring collar 11 and the elevating member 15 is screwed to the punch head 23 so as to be vertically adjustable. The punch guide 3 and the punch body 9 are held by a key 29 so as not to rotate, as in the normal configuration.

Therefore, under normal conditions, the elastic member 1
The lifting member 15 is lifted by the action of 7 and abuts against the lower surface 19 of the lock member 21, the stopper ring 25 provided on the punch head 23 is located in the recess 27, and the lower end of the punch head 23 is the weight of the punch body 9. Thus, it is in contact with and supported by the upper surface of the lifting member 15. The punch blade 7 provided at the lower end of the punch body 9 is located above the lower surface of the stripper plate 5. FIG. 1 shows a state where the punch body 9 is lowered most.

A lock device 31 is provided, which is capable of fixing the punch head 23 to the lock member 21 so as not to be rotatable and allowing rotation when the fixation is released.
More specifically, as shown in FIGS. 2 and 3, a plurality of engagement recesses 33 are provided at appropriate intervals on the outer peripheral surface of the trunk of the punch head 23. The engaging recess 33 is formed by a vertically long groove parallel to the axis of the punch head 23.

The engagement recess 33 is provided in a radial storage recess 35 formed on the inner peripheral surface of the lock member 21.
An operation member for engaging and disengaging the lock piece 37 with respect to the engagement recess 33 is provided in the lock member 21. 39 are provided.

More specifically, the lock member 21 is provided with a storage hole 41 in a horizontal direction perpendicular to the axis of the punch head 23, and the operation member 39 slides in the storage hole 41. It is freely inserted. This operation member 39
Are urged in a direction to come out by the action of an elastic member 43 such as a coil spring elastically mounted between the bottom of the storage hole 41 and the long hole 45 provided in the operation member 39.
Are prevented from coming off by a pin 47 penetrating through.

At a position where the operating member 39 corresponds to the lock piece 37, a small recess 49S for pressing the lock piece 37 toward the engagement recess 33 of the punch head 23.
And an operation recess 49 continuously formed with a large recess 49L that allows the lock piece 37 to enter the storage recess 35.

With the above configuration, in the normal state, as shown in FIG.
Is moved in the protruding direction, and the small recess 4 of the operation recess 49 is moved.
9S is in a state where the lock piece 37 is engaged and held in the engagement concave portion 33, and the punch head 23 is fixed so as not to rotate with respect to the lock member 21. Even when the lock piece 37 is engaged with the engagement recess 33, the engagement recess 33 is formed in a vertically long groove shape, so that the punch head 23 can move up and down with respect to the lock member 21. It is.

In the above configuration, to adjust the height from the upper surface of the punch head 23 to the punch blade portion 7 of the punch body 9 by adjusting the punch body 9 up and down, first, FIG. Operating member 3 in the state shown
9 is pushed into the storage hole 41 against the urging force of the elastic member 43, and the large concave portion 49 </ b> L of the operation concave portion 49 formed in the operation member 39 is opposed to the lock piece 37.

As described above, the large recess 49L is connected to the lock piece 37.
The lock piece 37 is received in the large recess 49L, moves toward the storage recess 35, and
The punch head 23 is released from the engaging recess 33 of FIG.

Therefore, the locking piece 37 is engaged with the engagement recess 33.
When the flange portion of the punch head 23 is held and rotated with respect to the lock member 21 in a state where the punch head 23 is released from the lock member 21, the punch head 23 is rotated with respect to the punch body 9, and the The punch body 9 can be vertically adjusted.

When the punch head 23 is rotated as described above, the elevating member 15 comes into contact with the lower surface 19 of the lock member 21 as the elevating member, and the urging force of the strong elastic member 17 is received by the lock member 21. Punch head 23
Since only the weight of the punch body 9 acts on the contact portion between the lower end portion and the elevating member 15, the rotating operation of the punch head 23 as described above can be performed lightly. is there.

Thereafter, when the lock piece 37 is engaged with the desired engagement recess 33 and the pushing of the operation member 39 is released, the small recess 49S of the operation recess 49 presses the lock piece 37 toward the engagement recess 33. And maintain the engaged state.

When re-grinding the punch blade portion 7 of the punch body 9, the punch head 23 is rotated to release the screwed state between the punch head 23 and the upper end of the punch body 9 as described above. By doing so, the punch body 9 can be pulled out from the punch guide 3 in the downward direction, and the punch blade portion 7 can be polished again.

[0024]

As will be understood from the above description, according to the present invention, the punch head can be operated in a fixed state and a rotatable state without using a tool. No need to move the punch head or the like in the vertical direction when rotating, and the punch body screwed to the punch head can be adjusted up and down by rotating the punch head in a rotatable state. In addition, the height adjustment operation is easy and there is no need to move up and down, so that the configuration is simpler.

[Brief description of the drawings]

FIG. 1 is an explanatory cross-sectional view of a mold device according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional explanatory view showing a main part of a mold apparatus according to an embodiment of the present invention.

FIG. 3 is an enlarged plan sectional view showing a main part of the mold apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Die apparatus 3 Punch guide 7 Punch blade part 9 Punch body 11 Spring collar 15 Elevating member 17, 43 Elastic member 19 Elevation regulating part (lower surface) 21 Lock member 23 Punch head 31 Lock device 33 Engagement concave part 35 Storage concave part 37 Lock Piece 39 operating member 49 operating recess

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) B21D 37/10 B21D 37/10 Z

Claims (3)

[Claims] A spring collar is provided on an upper part of a punch guide in which a punch body is vertically movable,
A lock member attached to an upper portion of the spring collar, wherein a lifting / lowering restricting portion for restricting upward movement of the lifting member urged upward by a biasing means provided inside the spring collar is provided in the spring collar. The punch head is vertically movable, is provided to be able to abut on the elevating member from above and is rotatable by a predetermined angle, and penetrates the spring collar and the elevating member to lower the upper end of the punch body to the punch head. A mold device, which is screwed from the side so as to be adjustable. 2. A mold device according to claim 1, wherein a lock device is provided between the lock member and the punch head, the lock device being capable of fixing the punch head to the lock member so as not to rotate. Characteristic mold equipment. 3. The locking device according to claim 2, wherein the locking device is configured to be capable of engaging and disengaging a locking recess formed in the punch head with the locking recess. A mold device comprising: an operating member for engaging and disengaging.