JPH0669594B2 - Die set type head changer - Google Patents

Description

The present invention relates to a die set in which a die block having a die attached thereto and a punch holder having a punch attached thereto are freely connected and separated via a guide bar to form a die set. The present invention relates to a die set exchanging device for a die set type header in which the parts are detached and replaced.

2. Description of the Related Art Problems to be Solved by the Prior Art and Invention The patent applicant of the present invention previously developed a die-set type header having the above-mentioned structure to obtain Japanese Patent Application No. 58-63471 (Japanese Patent Laid-Open No. 59-1
89027), and by exchanging a die set consisting of a die block and a punch holder that are accurately positioned by a guide bar, it has become possible to quickly and easily perform setup change.
Since the used die set was lifted with a wire using a swing arm type hoist and removed from the header body, and a new die set was also lifted with a wire and attached to the header body, the die set was replaced, so the wire was replaced. There is a drawback that it takes time to accurately hang up the hoisted die set and accurately lower it to the mounting position of the header body, and there has been a demand for a device that can perform replacement work more quickly.

The present invention has been completed in response to such requirements.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a boat-shaped main body having a device space 2 formed in a central portion thereof, and a ram 4 connected to a crank shaft (not shown) through a connect rod (not shown),
It is adapted to reciprocate back and forth along a sliding guide 3 provided on one side of the device space 2, and a recess 7 is formed at a position facing the ram 4 on the other side of the device space 2. Recess 7
The die block 8 is detachably attached.

The die block 8 has two mounting holes 9 and 9 which are transparently provided with a space left and right, and a die 10 is detachably fitted in each mounting hole 9. Is inserted from the rear into a forming hole 11 formed in the center of each die 10, and two guide bars 13 and 13 are provided on the lower part of the front surface in parallel with each other. A punch holder 14 is slidably fitted on the bars 13 and 13, and the die block 8 is attached to the punch holder 14.
2 mounting holes whose axes match the respective mounting holes 9, 9 of
15 and 15 are transparently provided, punches 16 and 16 are detachably fitted in the respective mounting holes 15, and the width of the ram 4 is narrower than the corresponding interval between the two guide bars 13 and 13. Vertical mounting plate 6
Is fixed by a fixing member 5, and the mounting plate 6
Two movable members 17 which can move up and down on the front surface of the movable member 17 are attached to the upper and lower ends of the movable member 17 at intervals, and swinging arms 18 are pivotally supported on the front surface of each movable member 17. After bringing the punch holder 14 into contact with the front surface of the mounting plate 6, the upper and lower moving members 17 are moved to move the punch holder 14 respectively.
The upper and lower edges of the swing member 18 of each moving member 17
The punch holder 14 is detachably connected to the ram 4 by swinging the tip of the punch holder 14 against the back surface of the punch holder 14 and attaching the punch holder 14 to the ram 4. The punch holder 14 constitutes a die set 19.

The above is the same configuration as the die set type header for which the patent applicant of the present invention has previously applied for a patent, and the die set 19 is placed on a work table provided separately from the main body 1,
Insert dies 10, 10 into the mounting holes 9, 9 of the die block 8,
After mounting the punches 16 and 16 in the mounting holes 15 and 15 of the punch holder 14 respectively, they are carried to the main body, the die block 8 is stored in the recess 7 and fixed to the main body 1, and the punch holder 14
2 is attached to the mounting plate 6 of the ram 4 and connected to the ram 4, the setup change is completed, and when the ram 4 reciprocates back and forth, the punch holder 14 follows the guide bar 13 and is shown by a solid line in FIG. Reciprocating between the rear dead center position and the front dead center position shown by the chain line in the same figure, the material sheared to a certain size in a shearing die not shown is transferred to the front of one die 10,
As the ram 4 advances, it is pressed by one of the punches 16 for primary molding, and when the ram 4 retracts, the primary molded product that is ejected by the ejection pin 12 is clamped by a finger (not shown) and immediately before the other die 10. Is transferred to the ram 4, and in the next step of advancing the ram 4, it is pressed by the other punch 16 for finish molding, and the finished molded product is ejected by the ejector pin 12
It is supposed to be ejected from the die 10 by,
In this embodiment, as shown in FIGS. 1 and 4,
A mounting table 20 is installed on the side of the main body 1 and bolts are mounted on the mounting table 20.
A transfer table 21 whose height can be adjusted by 22 is placed, and an elevating guide column 24 stands vertically on a mounting plate 23 that is fixed to the upper surface of the side portion of the main body 1 by protruding a part outward. It is set up. The elevating guide pillar 24 is made of a hollow material having a square cross section, and has guide plates 25 fixed to four vertical outer surfaces.
An inclined surface 26 is formed so that the upper end portion of each guide plate 25 is tapered. The elevating guide pillar 24 has a rectangular support having a square shape in plan view and four inner surfaces on which slide roller bearings 28 are mounted.
The slings 30 with the projections 29 projecting in opposite directions
Is externally fitted, and the slide roller bearing 28 is moved by contact with the guide plate 25 so that only the lifting and lowering is freely performed and the non-rotatable fitting is carried out. This hanging tool 30 is mounted directly on the dice set 19 in which the tips of both support arms 29, 29 are attached to the main body 1 and the dice set 19 placed on the transfer table 21 in a state of being fitted to the lifting guide column 24. The mounting portions 31, 31 are fixed to the lower surface of each support arm 29 by bolts 32. As shown in FIG. 3, each fixture 31 is
The upper plate 33, the tip of which is in contact with the upper surface of the punch holder 14 of the die set 19, and the lower plate 34, which is in contact with the upper surface of the die block 8, are joined by two standing plates 35, 35, and both sides of the upper surface of the die block 8 are joined together. By rotating the holding claws 36 and 36 with the handle 37 that is freely attached to the
The upper end of the upper plate 33 is screwed with a push bolt 38 with a handle 39, and the push bolt 38 with the handle 39 is screwed onto the die block 8. The upper end of the punch holder 14 is pushed by the lower end of the punch by rotation, and the punch holder 14 is fixed to the guide bar 13. Further, a suspension ring 40 is fixed on the upper surfaces of both support arms 29, 29, and as shown in FIG. 4, both ends of a wire 42 hung on a hook 41 suspended from a crane (not shown) are coupled to the suspension ring 40. Has been done.

Next, the operation of this embodiment will be described.

Die 10 and punch to complete the press forming of one lot of product and perform the press forming of new products with different shapes.
When replacing 16, the used die set 19 is unfixed to the main body 1, and a new die 10 and punch 16 are mounted, the lower die set 19 is placed on the transfer table 21, and the lifting tool 30 is attached. The sliding body 27 is fitted into the elevating guide column 24 and lowered. At this time, since the slope 26 is formed at the upper end of the guide plate 25 fixed to the outer surface of the elevating guide column 24, the sliding body 27 can be easily fitted, and after the fitting, the slide body 27 is slid. Since the roller bearing 28 tightly fits on the guide plate 25 and sways, the suspending tool 30 descends straight without rotation or rocking. When one attachment 31 comes into contact with the upper surface of the used die set 19 attached to the body 1 of the header and the suspension 30 stops, as described above, the two holding claws 36, 36 are moved to about 90 degrees. The lower plate 34 is rotated to press the edge portion of the lower plate 34 against the die block 8, and the push bolt 38 is rotated to push the upper surface of the punch holder 14 with its tip.
The height of the transfer table 21 is adjusted by rotating the bolt 22, and a new die set 19 placed on the transfer table 21 is brought into contact with the lower surface of the fixture 31 and fixed by the pressing claws 36 and 36 and the push bolt 38, and then the hook 41. And the suspension 30 having the supporting arms 29, 29 on both sides fixed to the die sets 19, 19 respectively is lifted up along the elevating guide column 24. As shown by the chain line in FIG. After rotating 180 degrees above 24, it is lowered again to fit on the elevating guide column 24, and further lowered to house a new die set 19 in the main body 1 of the header and fix it. Transfer board for Daisetsu 19
Placed on top of 21 and holding claws 36, 36 and push bolt 38, respectively.
Is rotated about 90 degrees in the opposite direction to remove the fitting 31, and the hook 41 is raised to lift the suspending tool 30, which is removed from the elevating guide column 24 and lowered to the storage position.

A material transfer device (not shown) attached to the upper surface of the die block 8 has one end pivotally supported by the die block 8, and when the die set 19 is replaced, the material is transferred from the upper surface of the die block 8 by rotating it outwardly around the one end. It is designed to be removed.

Structure and Effect of the Invention As described in detail with reference to the above embodiments, the present invention connects the die block to which the die is attached, the punch and the punch holder to which the die is attached via the guide bar so as to be freely separated from each other. In a die-set type hedder configured to attach and detach and replace the die-set, an elevating guide column is erected between the die-set mounting position of the body of the header and the die-set transfer table provided near the body of the header. , The die set mounting position and the die set on the both support arms of a hanger in which support arms are provided on both sides of a sliding body that can be fitted to the elevating guide column in two directions rotated by 180 degrees and cannot rotate in the fitted state. Provided with attachments for detachably attaching the dice on the transfer stand, attach the dice to both the attachments, and attach the hangings along the elevating guide columns. The purpose of the present invention is to replace the die set by elevating, rotating 180 degrees above the elevating guide pillar, and lowering it along the elevating guide pillar. Since it goes up and down straight along, it is possible to accurately abut the fixtures on both sides to the used die set mounted on the header body and the new die set placed on the transfer stand, and also to fix it. The dice set attached to both sides of the hanging device can be accurately lowered on the mounting position of the header and on the transfer stand, the used die set can be removed and a new one can be attached at the same time, and the die set can be replaced. There is an effect that can be performed extremely quickly and easily.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention, and FIG. 2 is FIG.
-A sectional view taken along the line A, FIG. 3 is a perspective view of the fixture and the die set,
FIG. 4 is a sectional view taken along the line BB in FIG. 1: body, 4: ram, 6: mounting plate, 8: die block, 9: mounting hole, 10: die, 13: guide bar, 14: punch holder, 15:
Mounting hole, 16: Punch, 19: Die set, 21: Transfer stand, 24: Lift guide column, 27: Sliding body, 29: Support arm, 30: Lifting tool, 31: Mounting tool

Claims (1)

[Claims] 1. A punch holder (14) having a die block (8) having a die (10) and a punch (16).
In the die-set type hedder in which and are freely connected and separated through a guide bar (13) to form a die-set (19), and the die-set (19) is attached and detached for replacement, An elevating guide column (24) is erected in the middle between the position of the die set device and the die set transfer table (21) provided near the header body (1), and the elevating guide column (24) is rotated in two directions rotated by 180 degrees. The dice set mounting position and the dice transfer to the both support arms (29) of the suspender (30) in which the support arms (29) project from both sides of the sliding body (27) which can be fitted and cannot rotate in the fitted state. A fixture (31) for detachably attaching the die set (19) on the table (21) is provided, and the die set (19) is attached to both the fixtures (31) to attach the suspending tool (30) to the lifting guide pillar (31). 24) along the lifting guide column (24) There is rotated 180 degrees, Daisetsuto exchange apparatus Daisetsuto formula Hetsuda, characterized in that it has a structure to exchange Daisetsuto (19) by lowering along the elevation guide post (24).