CN214263481U - Guarantee die structure of stripper equal altitude and prevent stripper atress deformation - Google Patents

Abstract

The die structure comprises an upper die base, an upper padding plate, a retaining plate, a stripper plate, a lower die base and a lower die, wherein the upper part of a punch is fixedly connected with the retaining plate and the upper padding plate relatively, the punch is matched with a die hole on the lower die, a spring is arranged in inner holes of the upper die base and the upper padding plate, the upper end of the spring abuts against a plug in threaded connection with the upper die base, the lower end of the spring abuts against the washer, the washer is positioned in a hole in the upper padding plate, a screw is inserted into the inner holes of the washer and the retaining plate, the lower end of the screw is in threaded connection with the stripper plate, a sleeve is sleeved on the outer side of the screw, the upper end of the sleeve abuts against the lower surface of the washer, and the lower end of the sleeve abuts against the upper surface of the stripper plate. The device has the advantages of simple structure, no pre-tightening force of the discharging spring acting on the discharging plate and the discharging bolt, effective guarantee of the equal height of the discharging plate, convenient adjustment of the pre-tightening force, no deformation of the discharging plate and prolonged service life.

Description

Guarantee die structure of stripper equal altitude and prevent stripper atress deformation

Technical Field

The utility model relates to a mould, especially a mould structure that just prevents stripper atress deformation such as assurance stripper height.

Background

The existing die for stamping the sheet workpiece comprises an upper die base, an upper backing plate, a retaining plate, a stripper plate, a lower die base and a lower die, wherein the upper part of a punch is relatively and fixedly connected with the retaining plate and the upper backing plate, and the punch is matched with a die hole on the lower die. And a spring and a discharging bolt are arranged among the upper base plate, the upper die base and the discharging plate so as to ensure that the punch is smoothly separated from the workpiece after the punching is finished. The mold unloading spring with the structure is abutted to the unloading plate, and because the spring needs to have pretightening force, the pretightening force directly acts on the contact part of the unloading plate and the spring, the unloading plate is easy to deform under stress, and meanwhile, the component force also acts on the unloading bolt, so that the unloading bolt is easy to damage after a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, the pretightning force of the spring of unloading do not act on stripper and the bolt of unloading, can effectively guarantee simultaneously that the stripper is high, and the pretightning force size adjustment is convenient, keep the stripper indeformable, increase of service life's mould structure, overcome the not enough of prior art.

The utility model discloses a guarantee mould structure that high and prevent stripper atress deformation such as stripper, including the upper die base, the upper padding plate, the retainer plate, the stripper, the die holder, the lower mould, the upper portion and the retainer plate of drift, the relative fixed connection of upper padding plate, the drift matches with the nib on the lower mould, be equipped with the spring in the hole of upper die base and upper padding plate, the upper end top of spring is leaned on the plug with upper die base threaded connection, the lower extreme top of spring leans on the gasket, the gasket is located the downthehole on the upper padding plate, the screw inserts the hole of gasket and retainer plate and the lower extreme head and the stripper threaded connection of screw, the cover is equipped with the sleeve pipe in the screw outside, the top of sheathed tube upper end leans on below the gasket, the sheathed tube lower extreme top leans on the stripper, the screw, the gasket, the sleeve pipe, the stripper reciprocal anchorage is a whole.

The utility model discloses a guarantee mould structure that just prevent stripper atress deformation such as stripper, the pretightning force of the spring of unloading is used in between looks die holder and the holding plate, the stripper does not lean on by the top of spring, the sleeve pipe can keep the stripper high simultaneously, the pretightning force accessible plug adjustment of spring, simple structure has, the pretightning force of the spring of unloading does not act on stripper and discharge bolt, can effectively guarantee the stripper high simultaneously, and the pretightning force size adjustment is convenient, keep the stripper indeformable, increase of service life's advantage.

Drawings

Fig. 1 is a schematic structural view of the punch in the upper position (before punching) according to the embodiment of the present invention.

Fig. 2 is a schematic structural view of the punch in the lower position (after punching) according to the embodiment of the present invention.

Detailed Description

As shown in fig. 1 and 2: the utility model discloses a guarantee mould structure that high and prevent stripper atress deformation such as stripper, including upper die base 1, upper padding plate 2, retainer plate 3, stripper 5, die holder 13, lower mould 6, the upper portion and the retainer plate 3 of drift 4, the relative fixed connection of upper padding plate 2, the nib 15 on drift 4 and the lower mould 6 matches. The inner holes of the upper die holder 1 and the upper backing plate 2 are internally provided with a spring 8 for discharging, the upper end of the spring 8 is propped against a screwed plug 7 which is in threaded connection with the upper die holder 1, and the lower end of the spring 8 is propped against a gasket 10. The washer 10 is located in a hole in the upper backing plate 2. The screw 9 is inserted into the inner holes of the washer 10 and the retainer plate 3 and the lower end of the screw 9 is threadedly coupled to the stripper plate 5. The outer side of the screw 9 is sleeved with a sleeve 11, the upper end of the sleeve 11 is abutted against the lower surface of the gasket 10, and the lower end of the sleeve 11 is abutted against the upper surface of the stripper plate 5. The screw 9, the washer 10, the sleeve 11 and the stripper plate 5 are fixed to each other as a whole. As shown in fig. 2: when the punch 4 presses the workpiece 12, the stripper plate 5 presses on the workpiece 12, the screw 9, the washer 10 and the sleeve 11 move upwards simultaneously, a gap 14 is formed between the lower surface of the washer 10 and the retaining plate 3, and the gap 14 is the distance of the screw 9, the washer 10 and the sleeve 11 moving upwards simultaneously, and the spring 8 is compressed. The pretension force of the spring 8 acts on the upper die holder 1 and the holding plate 3 independently of the stripper. The sleeve 11 can keep the stripper 5 equal in height, and the pretightening force of the spring 8 can be adjusted through the plug 7, so that the adjustable stripper has the advantages of simple structure, no effect of the pretightening force of the stripper spring 8 on the stripper 5 and the discharge bolt 9, effective guarantee of the stripper 5 equal in height, convenient adjustment of the pretightening force, no deformation of the stripper 5 and prolonged service life.

Claims (1)

1. The utility model provides a guarantee stripper height and prevent mould structure of stripper atress deformation, includes upper die base (1), upper padding plate (2), keeper (3), stripper (5), die holder (13), lower mould (6), the upper portion and keeper (3), upper padding plate (2) relatively fixed connection of drift (4), and nib (15) on drift (4) and lower mould (6) match its characterized in that: springs (8) are arranged in inner holes of the upper die holder (1) and the upper backing plate (2), the upper ends of the springs (8) abut against a screwed plug (7) in threaded connection with the upper die holder (1), the lower ends of the springs (8) abut against a gasket (10), the gasket (10) is located in a hole in the upper backing plate (2), screws (9) are inserted into the inner holes of the gasket (10) and the retaining plate (3), the lower end heads of the screws (9) are in threaded connection with the discharging plate (5), a sleeve (11) is sleeved on the outer side of the screws (9), the upper end of the sleeve (11) abuts against the lower surface of the gasket (10), the lower end of the sleeve (11) abuts against the upper surface of the discharging plate (5), and the screws (9), the gasket (10), the sleeve (11) and the discharging plate (5) are fixed into a whole.

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