CN206185026U

CN206185026U - Drawing die

Info

Publication number: CN206185026U
Application number: CN201621259990.1U
Authority: CN
Inventors: 刘春雨; 郑薇
Original assignee: Anhui Jianghuai Automobile Group Corp
Current assignee: Anhui Jianghuai Automobile Group Corp
Priority date: 2016-11-21
Filing date: 2016-11-21
Publication date: 2017-05-24
Anticipated expiration: 2026-11-21

Abstract

The utility model provides a drawing die, includes die, blank holder and its boss, terrace die and its major -minor muscle, die holder, the die holder has: the cylinder of connection terrace die and die holder, and backing plate, the backing plate has and passes the cylindrical round hole, just the upper surface of backing plate with the boss contact, the lower surface of backing plate and the contact of the ejector pin of lathe, its the utility model discloses a cylinder of design transmission power transmits the blank holder with ejector pin strength through a backing plate, has formed an unitized die holder, can make drawing die need not receive restriction and lathe production of random alternative use of lathe ejector pin position.

Description

A kind of drawing die

Technical field

The utility model is on a kind of drawing die.

Background technology

The production of stamping parts, general step is the composition such as drawing, trimming and piercing die, flange, in drawing operation by cavity plate, pressure Flange, punch-pin complete to mold blank the action of definite shape.

The composition of the drawing die of prior art is cavity plate, blank holder, punch-pin, die shoe, to ensure effective transmission of power, Blank holder, the position of the major-minor muscle of die shoe overlap, the cage bar of the position of blank holder boss close proximity to blank holder, it is ensured that and machine The strength that bed push rod is provided effectively is applied on blank holder.Cavity plate pushes down slab edge with blank holder in drawing process, punch-pin With the profile that cavity plate pulls out drawing operation, blank holder provides pressure-pad-force by the push rod of lathe and cavity plate is compressed, and completes whole drawing Prolong process, wherein push rod contacts offer pressure with the boss on blank holder by the circular hole on die shoe.

Prior art need to avoid the cage bar on punch-pin by the push rod of die shoe, therefore have one to the specific jack-up position of push rod Fixed requirement, but top cover position on lathe is fixed, is so just promoted in the lathe that selection is adapted with every mold Very big problem, also increases the later stage because the other factors such as production need to change the difficulty of lathe.

Therefore need to provide a kind of new drawing die, to improve shortcoming of the prior art.

Utility model content

The utility model provides a kind of drawing die, and it includes cavity plate, blank holder, punch-pin, die shoe, in the blank holder Internal edge at there is boss, the punch-pin has：Positioned at the cage bar at edge, and internally positioned secondary muscle, wherein：Under described Die holder has：Cylinder, the cylinder connects the punch-pin and the die shoe, and backing plate, and the backing plate has through the circle The circular hole of post, and the upper surface of the backing plate contacts with the boss, the lower surface of the backing plate and the ejector pin contact of lathe.

The utility model transmits the cylinder of power by designing, and push rod strength is delivered into blank holder by a backing plate, is formed A kind of unitized die shoe, can make the drawing die choose at random the lathe for using without being limited by lathe push rod position Produced.

Brief description of the drawings

Fig. 1 is the utility model axonometric drawing；With

Fig. 2 is the utility model sectional view.

Reference：1 cavity plate, 2 blank holders, 3 boss, 4 backing plates, 6 cage bars, 7 secondary muscle, 8 cylinders, 9 die shoes, 10 safe spiral shells Nail, 11 punch-pin.

Specific embodiment

As shown in Fig. 1 to 2, this utility model provides a kind of drawing die, it include cavity plate 1, blank holder 2, punch-pin 11, Die shoe 9, has boss 3 at the internal edge of the blank holder 2, and the punch-pin 11 has：Positioned at the cage bar 6 at edge, and Internally positioned secondary muscle 7, wherein：The die shoe 9 has：Cylinder 8, the cylinder 8 connects the punch-pin 11 and the lower mould Seat 9, and backing plate 4, the backing plate 4 have the circular hole through the cylinder 8, and the upper surface of the backing plate 4 connects with the boss 3 Touch, the lower surface of the backing plate 4 and the ejector pin contact of lathe.

As a further improvement, the cylinder 8 is located at the bottom of main ribs 6 and the secondary muscle 7.

As a further improvement, the die shoe 9 has safety screw 10, and the safety screw 10 passes through the backing plate 4 are arranged on the die shoe 9.

As a further improvement, the cylinder 8 has several, a diameter of 80mm of its cylinder 8.

As a further improvement, the thickness of the backing plate 4 be 80mm, and the circular hole a diameter of 82mm.

As a further improvement, the thickness of main ribs 6 is 50mm, and the thickness of the secondary muscle 7 is 30mm.

As a further improvement, the die shoe 9 also has the die shoe cage bar positioned at edge.

As a further improvement, the thickness of the die shoe cage bar is 40mm.

Specific embodiment as shown in Fig. 1 to 2, a kind of drawing die that the utility model is related to, by a kind of generalization Die shoe, it can be made to choose at random the lathe for using and be produced without being limited by lathe push rod position.

The drawing die includes 17 parts altogether：Cavity plate 1, blank holder 2, punch-pin 11, die shoe 9, backing plate 4, safety screw 10。

Cavity plate 1：It is casting structure, on lathe top shoe, is acted on blank holder 2 and pressure is formed to the edge of plate Power.

Blank holder 2：It is casting structure, boss 3 is designed with the internal edge of blank holder 2, is provided for receiving push rod Strength, it passes through the strength that lathe push rod provides and is acted on cavity plate 1, and the edge to plate forms pressure.

Punch-pin 11：It is casting structure, top is the convex portions of the drawing die face of stamping parts, for the shaping of drawn component, Edge is that thickness is the cage bar 6 of 50mm, and inside is the secondary muscle 7 of 30mm.

Die shoe 9：It is casting structure, edge is designed with the thick die shoe cage bars of 40mm.Preferably, in punch-pin 11 The bottom uniform design of cage bar 6 and secondary muscle 7 has the cylinder 8 of a diameter of 80mm, is effectively passed to down for strength suffered by punch-pin 11 On die holder 9.

Backing plate 4：It is the rectangular steel plates after 80mm, and the circular hole of a diameter of 82mm is machined with the relevant position of cylinder 8, is used Pass through the cylinder 8 of die shoe 9 in it, the upper surface of backing plate 4 contacts with the boss 3 of blank holder 2, the push rod of lower surface and lathe to Contact, for the strength of lathe push rod to be delivered into blank holder.

Safety screw 10：It passes through backing plate 4 to be arranged on die shoe 9, and fixed effect is played to backing plate 4.

The preferred embodiment, by designing the cylinder of transmission power in the bottom of punch-pin major-minor muscle, will be pushed up by a backing plate Stick force amount is delivered to blank holder, forms a kind of unitized die shoe, can make drawing die without by lathe push rod position The lathe for using is limited and chooses at random to be produced.

The course of work of the preferred embodiment is：Implement：By mould installion on lathe, push rod on lathe is by backing plate top Rise, backing plate applies strength to the boss of blank holder, and cavity plate is moved downward with lathe top shoe, and cavity plate is contacted plate with blank holder Surrounding push down, continue to move downward, plate is contacted with punch-pin, continues to move downward until reaching bottom dead centre, drawing is completed；It is recessed Mould is moved upwards with lathe top shoe, and push rod, by drawn component jack-up, completes a jig frequency to backing plate, blank holder strength.

Should be appreciated that the utility model scope of the claimed is not limited to non-limiting embodiments, it should be understood that non-limiting reality Scheme is applied to be illustrated as just example.The desired substantive protection domain of the application is more embodied in independent claims The scope of offer, and its dependent claims.

Claims

1. a kind of drawing die, it includes cavity plate, blank holder, punch-pin, die shoe, has at the internal edge of the blank holder Boss, the punch-pin has：Positioned at the cage bar at edge, and internally positioned secondary muscle, it is characterised in that：

The die shoe has：Cylinder, the cylinder connects the punch-pin and the die shoe, and backing plate, and the backing plate has Contacted with the boss through the circular hole of the cylinder, and the upper surface of the backing plate, lower surface and the lathe of the backing plate Ejector pin contact.

2. a kind of drawing die as claimed in claim 1, it is characterised in that：The cylinder is located at main ribs and the secondary muscle Bottom.

3. a kind of drawing die as claimed in claim 2, it is characterised in that：The die shoe has safety screw, the peace Full screw is arranged on the die shoe through the backing plate.

4. a kind of drawing die as claimed in claim 3, it is characterised in that：The cylinder has several, its described cylinder A diameter of 80mm.

5. a kind of drawing die as claimed in claim 4, it is characterised in that：The plate thickness is 80mm, and the circular hole A diameter of 82mm.

6. a kind of drawing die as claimed in claim 5, it is characterised in that：The thickness of main ribs is 50mm, the secondary muscle Thickness be 30mm.

7. a kind of drawing die as claimed in claim 6, it is characterised in that：The die shoe also has positioned at edge Die shoe cage bar.

8. a kind of drawing die as claimed in claim 7, it is characterised in that：The thickness of the die shoe cage bar is 40mm.