CN205270525U

CN205270525U - Fine blanking die

Info

Publication number: CN205270525U
Application number: CN201520929447.7U
Authority: CN
Inventors: 谷毅
Original assignee: CHONGQING WANSI METAL SPECIAL FORMING Co Ltd
Current assignee: CHONGQING WANSI METAL SPECIAL FORMING Co Ltd
Priority date: 2015-11-20
Filing date: 2015-11-20
Publication date: 2016-06-01
Anticipated expiration: 2025-11-20

Abstract

The utility model discloses a fine blanking die to solve quality problems such as the work piece sheared end face who has the play of blanking die blanking now is more coarse. Fine blanking die, including the upper die base that can vertically move, the lower part of upper die base is fixed with the punch -die, is equipped with the plunger in the top of upper die base, and the lower extreme of going up the plunger is fixed with the push rod, and the push rod passes the upper die base, and the lower extreme of push rod is fixed with the ring gear clamp plate, and open at the middle part of ring gear clamp plate has the via hole, and the punch -die passes the via hole, what correspond under the upper die base is equipped with the die holder, and die holder upper portion outside -in is equipped with roof and blanking die in proper order, is equipped with the terrace die that punches a hole on the blanking die, and the below of die holder is equipped with down the plunger, and the upper portion of lower plunger is fixed with the kicking block, and the upper portion of kicking block is fixed with the ejector pin, and the upper end of ejector pin is fixed with the lower part of roof.

Description

A kind of fine blanking die

Technical field

The utility model relates to blanking die technology, is specifically related to a kind of fine blanking die.

Background technology

Stamping-out is a kind of stamping procedure utilizing punch die to make part material or operation part and be separated with another part material, operation part or waste material, stamping-out is that shearing, blanking, punching, punching lack, rush groove, cutting, cutter are cut, trimming, cut tongue, incision, the separation circuit such as trimming general name. Stamping-out is except as except getting the raw materials ready, being usually used in directly processing packing ring, bicycle chainwheel, instrument gear, cam, shift fork, instrument panel, and the siliconized plate on motor, electrical equipment, the connector assembly etc. in unicircuit. The stamping-out mode generally adopted at present is that blank is placed in lower cavity die top, and punch is descending directly carries out punching press to blank, namely completes stamping-out after the waste material blanking that stamping-out falls. Often there are some problems in the workpiece of the stamping-out gained adopting this just common: it shears end face has and compare coarse zone of fracture, and with certain gradient, but also may there is collapse angle, burr etc., the workpiece quality processed is poor.

Practical novel content

The utility model is intended to provide a kind of fine blanking die, and the quality problems such as end face is more coarse sheared by the workpiece gone out to solve existing cutting die stamping-out.

A kind of fine blanking die in this scheme, comprising can the upper die holder of vertical motion, the bottom of upper die holder is fixed with convex-concave mould, it is provided with upper plug above upper die holder, the lower end of upper plug and push rod are fixed, push rod is through upper die holder, lower end and the gear ring pressing plate of push rod are fixed, the middle part of gear ring pressing plate had hole, convex-concave mould crosses hole through described, die holder under being provided with of the underface correspondence of upper die holder, lower die holder top ecto-entad is provided with top board and blanking die successively, blanking die is provided with piercing punch, the lower section of lower die holder is provided with lower plunger, the top of lower plunger is fixed with top block, the top of top block is fixed with push rod, the upper end of push rod and the bottom of top board are fixed.

Principle of work of the present utility model is as follows: during stamping-out blank, blank is sent to top board and blanking die top, then upper plug drives that gear ring pressing plate is descending is jointly compressed by blank with top board, upper die holder drives that convex-concave mould is descending that blank is carried out stamping-out, after stamping-out, upper die holder drives row on convex-concave mould, and upper plug drives row on gear ring pressing plate simultaneously, drives the blank being about under stamping-out on blanking die to eject finally by lower plunger.

The utility model has the advantage of: by upper plug for gear ring pressing plate provides flanging power, blank is compressed reliably by gear ring pressing plate with coordinating of top board, can prevent blank radius vector when convex-concave mould is descending from outwards moving, blank is under the extruding of convex-concave mould, gear ring pressing plate and top board, improve the plasticity of material, inhibit the generation shearing end capacity check, can reduce and even eliminate coarse zone of fracture, it is to increase work pieces process quality.

Further, all having corresponding vertical first guiding hole on top board and gear ring pressing plate, guiding is equipped with the first guide pillar in hole. First guide pillar coordinates with the first guiding hole, and the motion of gear ring pressing plate is had guide effect.

Further, also comprising the backing plate being positioned at below die holder, the middle part of backing plate has for the centre hole that convex-concave mould passes through, and the bottom of backing plate is provided with spacing groove, the size of spacing groove and the consistent size of gear ring pressing plate. The upper row of gear ring pressing plate is had stroke limit effect by spacing groove.

Further, sidepiece at backing plate have erect to the 2nd guiding hole, upper die holder bottom is provided with the 2nd guide pillar, lower die holder has with the 2nd guiding hole and the 2nd guide pillar position corresponding the 3rd guiding hole, 2nd guide pillar is through the 2nd guiding hole, and can be inserted in the 3rd guiding hole. When upper die holder is descending, coordinating of hole it had guide effect by the 2nd guide pillar with the 3rd guiding.

Further, the periphery being positioned at the 2nd guide pillar in the 2nd guiding hole and the 3rd guiding hole is equipped with spring. Spring is set, when convex-concave mould is descending, there is shock absorption, prevent the instantaneous impact of convex-concave mould excessive and blank is caused damage.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment.

Embodiment

Below by embodiment, the utility model is described in further detail:

Reference numeral in Figure of description comprises: upper plug 1, push rod 2, convex-concave mould 3, gear ring pressing plate 4, blanking die 5, top board 6, piercing punch 7, push rod 8, top block 9, lower plunger 10.

Embodiment is substantially as shown in Figure 1: the fine blanking die of the present embodiment, it is followed successively by top plate, upper die holder, backing plate, lower die holder and lower template from top to bottom, top plate and upper die holder are fixed, up-small and down-big ladder hole is had in the middle part of top plate, downstairs is provided with cushion block in hole, and being provided with in upper shoulder hole can along the upper plug 1 of its inwall vertical motion, and lower end and the push rod 2 of upper plug 1 are fixed, push rod 2 is fixed through cushion block and upper die holder, lower end and the gear ring pressing plate 4 of push rod 2.

The bottom of upper die holder is fixed with convex-concave mould 3, and the middle part of gear ring pressing plate 4 had hole, and convex-concave mould 3 passed hole. Backing plate and upper die holder are fixed by screw, and the middle part of backing plate has for the centre hole that convex-concave mould 3 passes through, and the bottom of backing plate is provided with spacing groove, the size of spacing groove and the consistent size of gear ring pressing plate 4.

Lower template is fixedly connected with lower die holder, under the present embodiment, die holder top ecto-entad is provided with top board 6 and blanking die 5 successively, blanking die 5 is provided with piercing punch 7, the lower section of lower die holder is provided with lower plunger 10, lower template has plunger and crosses hole, and lower plunger 10 and lower cushion block are positioned at plunger and cross hole, the top of lower plunger 10 is fixed with top block 9, top block 9 is fixed with push rod 8 through lower cushion block, the top of top block 9, and the upper end of push rod 8 and the bottom of top board 6 are fixed. All having corresponding vertical first guiding hole on top board 6 and gear ring pressing plate 4, guiding is equipped with the first guide pillar in hole.

The present embodiment the sidepiece of backing plate have erect to the 2nd guiding hole, upper die holder bottom is provided with the 2nd guide pillar, lower die holder has the three guiding hole corresponding with the 2nd guiding hole and the 2nd guide pillar position, 2nd guide pillar is through the 2nd guiding hole, and can be inserted in the 3rd guiding hole, and the periphery being positioned at the 2nd guide pillar in the 2nd guiding hole and the 3rd guiding hole is equipped with spring.

Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this. Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, it is also possible to make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability that the utility model is implemented. The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification sheets etc. record the content that may be used for explaining claim.

Claims

1. a fine blanking die, it is characterized in that, comprising can the upper die holder of vertical motion, the bottom of upper die holder is fixed with convex-concave mould, it is provided with upper plug above upper die holder, the lower end of upper plug and push rod are fixed, push rod is through upper die holder, lower end and the gear ring pressing plate of push rod are fixed, the middle part of gear ring pressing plate had hole, convex-concave mould crosses hole through described, die holder under being provided with of the underface correspondence of upper die holder, lower die holder top ecto-entad is provided with top board and blanking die successively, blanking die is provided with piercing punch, the lower section of lower die holder is provided with lower plunger, the top of lower plunger is fixed with top block, the top of top block is fixed with push rod, the upper end of push rod and the bottom of top board are fixed.

2. fine blanking die according to claim 1, it is characterised in that: all having corresponding vertical first guiding hole on top board and gear ring pressing plate, guiding is equipped with the first guide pillar in hole.

3. fine blanking die according to claim 1, it is characterised in that: also comprising the backing plate being positioned at below die holder, the middle part of backing plate has for the centre hole that convex-concave mould passes through, and the bottom of backing plate is provided with spacing groove, the size of spacing groove and the consistent size of gear ring pressing plate.

4. fine blanking die according to claim 3, it is characterized in that: the sidepiece at backing plate have erect to the 2nd guiding hole, upper die holder bottom is provided with the 2nd guide pillar, lower die holder has the three guiding hole corresponding with the 2nd guiding hole and the 2nd guide pillar position, 2nd guide pillar is through the 2nd guiding hole, and can be inserted in the 3rd guiding hole.

5. fine blanking die according to claim 4, it is characterised in that: the periphery being positioned at the 2nd guide pillar in the 2nd guiding hole and the 3rd guiding hole is equipped with spring.