CN207628965U - A kind of punching die for the punching of product piece end - Google Patents

Abstract

A kind of punching die for the punching of product piece end; including lower mold apparatus; lower mold apparatus is equipped with low mold frame, lower die supporting block, cantilever activity lower die and lower die sliding shoe; low mold frame, lower die supporting block are fixedly connected with lower die holder respectively; lower die sliding shoe is located at low mold frame, lower die supporting block in the space that is encircled into; the side fixing end of cantilever activity lower die is fixedly connected with lower die sliding shoe; the position that lower die holder corresponds to lower die sliding shoe is equipped with resetting spring, and the upper end of reset screw of lower template, lower die holder, resetting spring is passed through to be threadedly coupled with lower die sliding shoe.The utility model is in punching, movable cantilever lower die depresses to and lower die holder rigid contact under the pressure effect of stripper, and product piece and lower die supporting block also form rigid contact, the cantilever end of cantilever activity lower die obtains rigid support in this way in punch process, it is unlikely to deform and fractures, the service life of cantilever activity lower die is improved, and product piece punching quality is also improved.

Description

A kind of punching die for the punching of product piece end

Technical field

The utility model is related to a kind of diels, are especially used for car floor supporting rack class product piece end punching Punching die belongs to metal stamping techniques field.

Background technology

A kind of car floor supporting rack uses aluminium alloy extruded proximate matter, and as shown in Figure 3, Figure 4, cross sectional shape is " B " word Shape, the upper and lower surface at the both ends of strip-shaped product part are respectively necessary for processing the hole of different-diameter, process using Sheet Metal Forming Technology The macropore of upper surface is first gone out, then goes out the aperture of lower surface again.When punch process macropore, need product piece penetrating cantilever Punching is completed in lower die, punch upper die pressure.Traditional cantilever lower die is fixed, and the cantilever part of lower die penetrates product piece, is carried out Punching hole.This structure there are the problem of, lower die cantilever position is acted on by punch upper die because of poor rigidity in punching course Power and deform, to make the product piece outer surface processed scratch and the problems such as burr is big, and due to the cantilever knot of lower die Structure is easy to happen plastic deformation or even fracture, seriously affects the service life of lower die.

Utility model content

The purpose of this utility model is that for the drawback of the prior art, product piece punching matter can be effectively improved by providing one kind The punching die for the punching of product piece end of amount and lower die service life.

Problem described in the utility model is realized with following technical proposals：

A kind of punching die for the punching of product piece end is made of, lower mold apparatus packet upper mould device and lower mold apparatus The lower die holder of connection lower template is included, the lower mold apparatus is equipped with low mold frame, lower die supporting block, cantilever activity lower die and lower die sliding Block, low mold frame, lower die supporting block are fixedly connected with lower die holder respectively, and lower die sliding shoe is located at low mold frame, lower die supporting block pairing In the space surrounded, the side fixing end of cantilever activity lower die is fixedly connected with lower die sliding shoe, cantilever activity lower die it is another Side is equipped with the cantilever end of support product piece, and cantilever end is equipped with punching hole, and the position that lower die holder corresponds to lower die sliding shoe is equipped with again Position spring, passes through the upper end of reset screw of lower template, lower die holder, resetting spring to be threadedly coupled with lower die sliding shoe.

The above-mentioned punching die for the punching of product piece end, the upper mould device include sequentially connected cope plate and upper Mould fixed plate, punch upper die and upper mould fixed plate assembly connection, upper mould fixed plate are unloaded through unloading bolt, the connection of discharging spring floating Flitch, punch upper die lower part pass through stripper, the affixed stripper edge of stripper side respective cantilevered activity lower die position fixed ends Block, stripper other side respective cantilevered activity lower die cantilever end.

The position of the above-mentioned punching die for the punching of product piece end, stripper insert lower surface is corresponded to less than stripper The lower surface of cantilever activity lower die side；The upper surface of lower die supporting block is less than the upper surface of low mold frame.

The above-mentioned punching die for the punching of product piece end, the cantilever activity lower die are equipped with key, and key is slided with lower die The keyway Matching installation of block.

The above-mentioned punching die for the punching of product piece end, the lower die sliding shoe and low mold frame clearance fit.

The utility model is improved for the problems for solving traditional punching die cantilever mounted lower die, will be fixed Cantilever lower die is improved to cantilever activity lower die, and in punch process, movable cantilever lower die compresses under the pressure effect of stripper Product piece and cantilever activity lower die, cantilever activity lower die depress to lower die holder rigid contact, and product piece and lower die support Block also forms rigid contact, and the cantilever end of cantilever activity lower die obtains rigid support in this way in punch process, is unlikely to deform With fracture, improve the service life of cantilever activity lower die, and product piece punching quality is also improved.

Description of the drawings

The utility model is described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the schematic diagram of lower mold apparatus；

Fig. 3 is the schematic diagram of product piece；

Fig. 4 is the Section A-A figure of Fig. 3.

In attached drawing respectively marked as：Each list of reference numerals is in attached drawing：1, lower template, 2, lower die holder, 3, reset screw, 4, reset Spring, 5, low mold frame, 6, lower die sliding shoe, 7, lower die supporting block, 8, cantilever activity lower die, 8-1, key, 8-2, punching hole, 9, on Template, 10, stripper insert, 11, stripper, 12, punch upper die, 13, upper mould fixed plate, 14, discharging spring, 15, discharging spiral shell Nail, 16, upper padding plate, 17, product piece.

Specific implementation mode

Referring to Fig. 1, Fig. 2, the utility model is made of upper mould device and lower mold apparatus.Lower mold apparatus includes connection lower template 1 lower die holder 2, lower mold apparatus are equipped with low mold frame 5, lower die supporting block 7, cantilever activity lower die 8 and lower die sliding shoe 6.Low mold frame, Lower die supporting block is fixedly connected with lower die holder respectively, and the two is surrounded.Lower die sliding shoe is located at low mold frame, lower die supporting block to surrounding At space in, lower die sliding shoe position and low mold frame clearance fit.The side of cantilever activity lower die 8 be fixing end, fixing end with Lower die sliding shoe is fixedly connected, and the other side of cantilever activity lower die is equipped with the cantilever end of support product piece, and cantilever end is equipped with punching Press hole 8-2.The position that lower die holder corresponds to lower die sliding shoe is equipped with resetting spring 4, passes through lower template, lower die holder, resetting spring The upper end for resetting screw 3 is threadedly coupled with lower die sliding shoe.Above structure can make cantilever activity lower die can be on lower die sliding shoe Lower movement.To ensure that cantilever activity lower die steadily moves, cantilever activity lower die is equipped with key 8-1, the keyway of key and lower die sliding shoe Matching installation.

Referring to Fig. 1, the upper mould device includes sequentially connected cope plate 9 and upper mould fixed plate 13, punch upper die 12 with Upper mould fixed plate is fixedly connected, and upper mould fixed plate is through unloading bolt 15,14 floating connection stripper 11 of discharging spring, punch upper die Lower part passes through stripper.The affixed stripper insert 10 in position of respective cantilevered activity lower die fixing end, stripper on the left of stripper Other side respective cantilevered activity lower die cantilever end.The upper surface of lower die supporting block is less than the upper surface of low mold frame 5, stripper insert The position of lower surface is less than the lower surface of stripper respective cantilevered activity lower die side, to realize stripper insert and cantilever activity When lower die contacts, stripper is also just contacted with product piece.

Referring still to Fig. 1, the course of work of the utility model is as follows：Product piece is penetrated on the cantilever end of cantilever activity lower die 17；Cope plate 9 is fixed on slider of punch and the downlink together with slider of punch, stripper insert 10 touch cantilever activity lower die While 8, stripper 11 is just contacted with product piece；Cope plate continues traveling downwardly, and the beginning of discharging spring 14 is compressed, in discharging bullet Pressure effect lower cantalever activity lower die 8, product piece and the lower die sliding shoe 6 of spring 14 slide downwardly together, under lower die sliding shoe 6 Surface stops slide downward when touching lower die holder 2, product piece lower surface is also just contacted with lower die supporting block 7 at this time.At this time Resetting spring 4 is in compressive state；Cope plate 9 continues traveling downwardly, and 12 contact product part of punch upper die simultaneously completes punching；Cope plate 9 With punch upper die 12 together uplink, punch upper die is deviate from product piece punching；Cope plate 9 continues uplink, with discharging spring 14 constantly elongations, stripper 11 start uplink, and the lower die of cantilever activity at this time 8, product piece and lower die sliding shoe 6 are in resetting spring 4 The lower uplink that starts of elastic force effect reset, when resetting screw 3 and acting on, reset and complete；Extract out product piece, waste material from slug hole to Lower discharge, one jig frequency of so far mold completion.

Claims (5)

1. a kind of punching die for the punching of product piece end is made of upper mould device and lower mold apparatus, lower mold apparatus includes Connect the lower die holder (2) of lower template (1), it is characterised in that：The lower mold apparatus be equipped with low mold frame (5), lower die supporting block (7), Cantilever activity lower die (8) and lower die sliding shoe (6), low mold frame, lower die supporting block are fixedly connected with lower die holder respectively, lower die sliding Block is located at low mold frame, lower die supporting block in the space that is encircled into, side fixing end and the lower die sliding shoe of cantilever activity lower die It being fixedly connected, the other side of cantilever activity lower die is equipped with the cantilever end of support product piece, and cantilever end is equipped with punching hole (8-2), The position that lower die holder corresponds to lower die sliding shoe is equipped with resetting spring (4), across lower template, the reset spiral shell of lower die holder, resetting spring The upper end of nail (3) is threadedly coupled with lower die sliding shoe.

2. the punching die according to claim 1 for the punching of product piece end, it is characterised in that：The upper mould device Including sequentially connected cope plate (9) and upper mould fixed plate (13), punch upper die (12) and upper mould fixed plate assembly connection, upper mold Fixed plate passes through stripper, unloads through unloading bolt (15), discharging spring (14) floating connection stripper (11), punch upper die lower part The affixed stripper insert (10) of flitch side respective cantilevered activity lower die position fixed ends, the respective cantilevered activity of the stripper other side Lower die cantilever end.

3. the punching die according to claim 2 for the punching of product piece end, it is characterised in that：Under stripper insert The position on surface is less than the lower surface of stripper respective cantilevered activity lower die side；The upper surface of lower die supporting block is less than low mold frame Upper surface.

4. the punching die according to claim 3 for the punching of product piece end, it is characterised in that：The cantilever activity Lower die is equipped with key (8-1), the keyway Matching installation of key (8-1) and lower die sliding shoe.

5. the punching die according to claim 4 for the punching of product piece end, it is characterised in that：The lower die sliding Block and low mold frame clearance fit.