CN209363397U - A kind of bias punch structure - Google Patents

Abstract

The utility model relates to a kind of eccentric punch structures, including the inclined wedge pedestal being connect with upper die holder bottom, the wedge slide block being connect with inclined wedge pedestal, it further include the inclined wedge drive block being arranged on the lower die seat matched with wedge slide block, it further include formed punch fixing seat, the formed punch that is connect with formed punch fixing seat, it further include balance connecting plate, the bottom for balancing connecting plate and wedge slide block connects, formed punch fixing seat is connect with one end of balance connecting plate, and the balance connecting plate other end is connect with the equilibrant force source body that lower die holder matches.The bias punch structure can provide bigger space for the punching of part, reduce the probability processed to mold, save the development cost of mold.The bias punch structure is able to achieve eccentric punching at any angle.

Description

A kind of bias punch structure

Technical field

The utility model relates to vehicle manufacture fields, and in particular to a kind of bias punch structure.

Background technique

The punch structure of automobile body part stamping die generallys use positive punching and side punched hole structure, usually there is punching Head support base, the main components such as formed punch and side blow inclined wedge composition, no matter square impact or side blow require that formed punch and punching press support The center of effort of seat guarantees stability of the part in punch process on same straight line.

Traditional punch structure is determined that is, the punching position of product and pressing direction determine punching completely by product completely The spatial position of fixed structure, it is more demanding to mold design, if mold is unable to satisfy the spatial position of punching fixed structure, The purpose of punching can only be so realized by change product or increase process.

Therefore the Part Development performance of automobile can be lost using traditional punch structure or increases the development cost of mold.

Summary of the invention

The purpose of this utility model is to propose that a kind of eccentric punch structure, the bias punch structure can mention for the punching of part For bigger space, the probability processed to mold is reduced, saves the development cost of mold, and be able to achieve at any angle Eccentric punching.

A kind of eccentric punch structure described in the utility model, including the inclined wedge pedestal being connect with upper die holder bottom and institute The wedge slide block for stating the connection of inclined wedge pedestal further includes the inclined wedge driving being arranged on the lower die seat matched with the wedge slide block The formed punch that block further includes formed punch fixing seat, is connect with the formed punch fixing seat further includes balance connecting plate, the balance connection Plate is connect with the bottom of the wedge slide block, and the formed punch fixing seat is connect with one end of the balance connecting plate, the balance The connecting plate other end is connect with the equilibrant force source body that lower die holder matches.

As to further improvement of the utility model, the middle part of the balance connecting plate and the bottom of the wedge slide block Connection.

As to further improvement of the utility model, equilibrant force source body is elastomer.

As to further improvement of the utility model, the elastomer is elastic polyurethane or spring.

As to further improvement of the utility model, the spring is nitrogen gas spring.

The utility model has the advantage that one, since this bias punch structure has newly established balance connecting plate, can be zero The punching of part provides bigger space, reduces the probability processed to mold, saves the development cost of mold.Two, this is inclined Heart punch structure is able to achieve eccentric punching at any angle.

Detailed description of the invention

Fig. 1 is the mold assembling schematic diagram of the utility model；

Fig. 2 is one of the structural schematic diagram of the utility model；

Fig. 3 is the second structural representation of the utility model；

Fig. 4 is the third structural representation of the utility model；

Fig. 5 is the four of the structural schematic diagram of the utility model；

Fig. 6 is the balance connecting plate distribution of forces schematic diagram of the utility model.

In figure: 1-inclined wedge pedestal；2-wedge slide blocks；3-inclined wedge drive blocks；4-balance connecting plates；5-formed punches are fixed Seat；6-pressure plates；7-lower die punch-pin；8-parts；9-equilibrant force source bodies；10-formed punches；11-upper die holders；12-lower dies Seat.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing.

As shown in figure 1, figure 2, figure 3, figure 4 and figure 5, a kind of eccentric punch structure is oblique including connecting with 11 bottom of upper die holder Wedge pedestal 1, the wedge slide block 2 connecting with inclined wedge pedestal 1 further include the setting that matches with wedge slide block 2 on lower die holder 12 Inclined wedge drive block 3, further include formed punch fixing seat 5, the formed punch being connect with formed punch fixing seat 5 10, further include balance connecting plate 4, Balance connecting plate 4 is connect with the bottom of wedge slide block 2, and formed punch fixing seat 5 is connect with one end of balance connecting plate 4, balance connection 4 other end of plate is connect with the equilibrant force source body 9 that lower die holder 12 matches.

In the present embodiment, the middle part for balancing connecting plate 4 is connect with the bottom of wedge slide block 2.

In the present embodiment, equilibrant force source body 9 is elastomer.

In the present embodiment, elastomer is elastic polyurethane or spring.

In the present embodiment, the spring is nitrogen gas spring.

In the present embodiment, when 11 downlink of upper die holder starts, inclined wedge pedestal 1 and wedge slide block 2 are downward with upper die holder 11 Movement, when moving to certain altitude, pressure plate 6 is contacted with lower die punch-pin 7, and part 8 is compressed, and upper die holder 11 continues to transport downwards It is dynamic, wedge slide block 2 inclined wedge pedestal 1 and inclined wedge drive block 3 a certain rectilinear direction movement of active force lower edge, upper die holder 11 after Continuous to move downward, formed punch 10 contacts part 8, and upper die holder 11 continues to move downward, and part completes punch process, until mold closes It closes, upper die holder 11 moves to minimum point, and while formed punch 10 contacts part 8, equilibrant force source body 9 is contacted with lower die holder 12, puts down Weigh the continuous alternating compression of power source body 9, when part complete punch process, when lower die holder 12 moves to minimum point, equilibrant force source body 9 with Active force between lower die holder 12 is maximum, at this point, the decrement of equilibrant force source body 9 is maximum.

In the present embodiment, when 11 uplink of upper die holder starts, formed punch 10 and wedge slide block 2 are in inclined wedge pedestal 1 and inclined wedge A certain rectilinear direction counter motion of active force lower edge of drive block 3, when wedge slide block 2 leaves inclined wedge drive block 3, inclined wedge is sliding Block 2 stops along a certain rectilinear direction counter motion, in the continuation uphill process of upper die holder 11, wedge slide block 2 and inclined wedge pedestal 1 With 11 upward vertical movement of upper die holder, until highest point, so far completes punch process.While formed punch 10 leaves part 8, put down Weighing apparatus power source body 9 leaves lower die holder 12.

In the present embodiment, balance connecting plate 4 is fixedly mounted in wedge slide block 2, is to connect and both ends are arranged in Formed punch 10 and equilibrant force source body 9 guarantee stabilization of the formed punch 10 in punch process.

In the present embodiment, equilibrant force source body 9 is fixedly mounted on one end of balance connecting plate 4, is to guarantee punching The stress balance that connecting plate 4 is balanced in journey, provides counterbalancing power in punch process.

In the present embodiment, as shown in fig. 6, stable operation in order to guarantee balanced structure, the effect from wedge slide block 2 Power F is divided into two power, and a power is the directed force F 1 of effect with formed punch 10, the other is the work of effect and equilibrant force source body 9 Firmly F2, wherein the distance of the position of the position of F active force to F1 active force is L, and the position of F active force to F2 acts on The distance of the position of power is L1, guarantees F1 × L=F2 × L1, guarantees the stress balance of balance connecting plate 4.Directed force F indicates Multiple types active force, such as punching power, hole flanging power, flange power etc., F2 can come from a plurality of types of power, and Tathagata own elasticity is poly- The power of urethane, power from nitrogen gas spring etc..Upper die holder directed force F indicates a plurality of types of active forces, such as band angle punching Active force is provided by inclined wedge, positive punching provides active force by upper die holder 11.

This bias punch structure can be used for side punching, lateral flange, rollover hole, positive punching, positive hole flanging etc..

Claims (5)

1. a kind of bias punch structure, including the inclined wedge pedestal (1) being connect with upper die holder (11) bottom and the inclined wedge pedestal (1) wedge slide block (2) connected further includes the inclined wedge of the setting that matches with the wedge slide block (2) on lower die holder (12) The formed punch (10) that drive block (3) further includes formed punch fixing seat (5), is connect with the formed punch fixing seat (5), it is characterised in that: also Including balancing connecting plate (4), balance connecting plate (4) connect with the bottom of the wedge slide block (2), the formed punch fixing seat (5) it is connect with one end of balance connecting plate (4), what balance connecting plate (4) other end was matched with lower die holder (12) Equilibrant force source body (9) connection.

2. bias punch structure according to claim 1, it is characterised in that: the middle part of balance connecting plate (4) and institute State the bottom connection of wedge slide block (2).

3. bias punch structure according to claim 1, it is characterised in that: equilibrant force source body (9) is elastomer.

4. bias punch structure according to claim 3, it is characterised in that: the elastomer is elastic polyurethane or bullet Spring.

5. bias punch structure according to claim 4, it is characterised in that: the spring is nitrogen gas spring.