CN201618771U

CN201618771U - Self-resetting device for deep U-type bending piece

Info

Publication number: CN201618771U
Application number: CN2010201536812U
Authority: CN
Inventors: 张迎年
Original assignee: ANHUI LIYUAN CNC BLADE MOLD MANUFACTURING Co Ltd
Current assignee: ANHUI LIYUAN CNC BLADE MOLD MANUFACTURING Co Ltd
Priority date: 2010-04-06
Filing date: 2010-04-06
Publication date: 2010-11-03
Anticipated expiration: 2020-04-06

Abstract

The utility model discloses a self-resetting device for a deep U-type bending piece, which comprises a bending lower die, an embedded block, a spring and a round-head screw. The spring is arranged in the square groove of the bending lower die, the round-head screw is arranged in the square groove of the bending lower die and is connected in a way of moving up and down, the diameter of the connecting hole is smaller than that of the cap of the round-head screw, the round-head screw is connected with the embedded block through threads so as to prevent the embedded block from falling off the lower die, the spring exerts force to jack up the embedded block, and the embedded block can move up and down in a U-type groove under the combined action of the round-head screw and the spring and is on the top of the U-type groove in the non-working state. The utility model has the advantages of simple structure, convenient use, elimination of frequent spring replacement, great improvement of production efficiency and the like.

Description

A kind of dark U type bending workpieces automatic runback device

Technical field

The utility model is a kind of automatic runback device, relates in particular to a kind of dark U type bending workpieces automatic runback device.

Technical background

At present, the U-shaped workpiece is one of workpiece common in the panel beating field, in traditional U-shaped workpiece bending, when patrix is pressed into U-lag with workpiece, because the resilience of workpiece itself makes it produce tension force, make the coefficient of friction between workpiece and the U-lag side excessive, thereby cause " adhesion " phenomenon of workpiece and lower mold body.Problems such as although patrix is travelling backwards rapidly under the effect of slide block, and bending part itself can't separate voluntarily with lower mold body, can only lean on certain external force to be used for impelling its disengaging, causes labour intensity big thus, and work efficiency is poor, and bending workpieces is yielding.

The utility model content

Provide a kind of simple in structure in order to solve above-mentioned prior art problems the utility model, the operation of having removed frequent replacing spring from has improved a kind of dark U type bending workpieces automatic runback device of production efficiency greatly.

For a kind of dark U type bending workpieces automatic runback device of the defective that overcomes above-mentioned prior art comprises: the bending counterdie, abaculus, spring, cheese head screw, mounting spring in the square groove of described bending counterdie, described cheese head screw is located at the diameter of the diameter of interior up and down connection of described bending counterdie square groove and connecting hole less than the cheese head screw cap, described cheese head screw links to each other by screw thread with abaculus, prevent that abaculus breaks away from counterdie by the top, described spring action is with the abaculus jack-up that makes progress with spring force, acting in conjunction by cheese head screw and spring, abaculus is moved up and down in U-lag, and when off working state, be in the top of U-lag.

The utility model is workpiece to be pressed in the process of U-lag at patrix, and abaculus is subjected to the effect of patrix power, and moves down gradually along with the compression of spring.When patrix is finished under the effect that bending is operated in slide block travelling backwards, abaculus also under the effect of spring force with on move, thereby " adhesion " workpiece on lower mold body is ejected U-lag.Because the effect of cheese head screw is controlled at abaculus in the U-lag, prevent that it breaks away from counterdie.This device is long-term use after, the reduction that the elastic force of spring can be to a certain degree.At this moment, by screwing cheese head screw, dwindle the distance of abaculus and U-lag bottom surface, spring length is reduced, thereby increase spring force, the operation of having removed frequent replacing spring from has improved production efficiency greatly.

The utlity model has following beneficial effect in sum:

1, simple in structure, easy to use;

2, remove the operation of frequent replacing spring from, saved man-hour;

3, improved production efficiency greatly.

Description of drawings

Fig. 1 is the structural representation of the new a kind of dark U type bending workpieces automatic runback device of this practicality;

Fig. 2 is the automatic runback device internal structure schematic diagram of the new a kind of dark U type bending workpieces automatic runback device of this practicality.

Wherein: 1-bending counterdie; The 2-abaculus; The 3-spring; The 4-cheese head screw.

The specific embodiment

As Fig. 1, a kind of dark U type bending workpieces automatic runback device shown in Figure 2 comprises: bending counterdie 1, abaculus 2, spring 3, cheese head screw 4, mounting spring 3 in the square groove of described bending counterdie 1, described cheese head screw 4 is located at the diameter of the diameter of interior up and down connection of described bending counterdie 1 square groove and connecting hole less than the cheese head screw cap, described cheese head screw 4 and abaculus 2 link to each other by screw thread, prevent that abaculus 2 breaks away from counterdie 1 by the top, 3 effects of described spring are with abaculus 2 jack-up upwards with spring force, by the acting in conjunction of cheese head screw 4 with spring 3, abaculus 2 is moved up and down in U-lag, and when off working state, be in the top of U-lag.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.

Claims

1. a dark U type bending workpieces automatic runback device comprises: bending counterdie, abaculus, spring, cheese head screw, it is characterized in that: mounting spring in the square groove of described bending counterdie, described cheese head screw is located at the diameter of the diameter of interior up and down connection of described bending counterdie square groove and connecting hole less than the cheese head screw cap, and described cheese head screw links to each other by screw thread with abaculus.