CN202278062U

CN202278062U - Fine blanking extruding device

Info

Publication number: CN202278062U
Application number: CN 201120281613
Authority: CN
Inventors: 赵军; 易际明; 许建民
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2011-08-04
Filing date: 2011-08-04
Publication date: 2012-06-20
Anticipated expiration: 2021-08-04

Abstract

The utility model discloses a fine blanking extruding device, comprising a terrace die base, a terrace die, and a concave die, a punch hole is disposed in the concave die; the punch hole is successively axially provided with an upper segment, a conical surface segment, and a lower segment from up to down, the inner diameter of the upper segment is a punching design size D, the inner diameter of the lower segment is a terrace die design size, and the conical surface segment is connected with upper and lower segments. During punching, the upper segment of the punch hole can guarantee punching and breaking of thick plates, the punch hole conical surface segment and the lower segment can extrude the punched and broken plates, collapse corners and burrs at the edge of a punching member are corrected, collapse corners and burrs at the surface of a thick plate component are completely eliminated, and quality of the component is improved to a certain extent.

Description

Smart impact extrusion pressure device

Technical field

The utility model relates to a kind of diel, refers to a kind of smart impact extrusion pressure device especially.

Background technology

Diel all kinds of a lot, blanking die is wherein a kind of.Blanking die is that a kind of sheet material that makes produces the mould that separates, and its typical structure is as shown in Figure 1, mainly comprises convex mould base 1, punch 2, die 3, has punching 31 on the die 3.During production, the shape and the size that design punch 2 and punching 31 according to the size and the shape of stamping parts.In general, for guaranteeing smooth punching press, the design size d of punch 2 should be less than the design size D of punching 31.

But during for the slab stamping-out; Because the thickness of sheet material is thicker; For guaranteeing the smooth separation of sheet material; Gap between punch design size d and the punching design size D is generally bigger, and the stamping parts 4 that obtains of stamping-out thereunder the angle a that collapses occurs in the edge easily like this, and burr b (as shown in Figure 2) then appears in its top edges easily.Therefore prior art slab stamping-out can't obtain the high accuracy size, and quality can not guarantee.

The utility model content

In view of the defectives such as angle and burr of collapsing of existing slab stamping-out process existence, but the utility model technical problem to be solved is to provide the smart impact extrusion pressure device of a kind of fine-edge blanking than heavy-gauge sheeting.

For solving the problems of the technologies described above, the technical solution of the utility model is:

A kind of smart impact extrusion pressure device comprises convex mould base, punch and die, on die, has punching; From top to bottom according to being provided with epimere, conical surface section and hypomere, the internal diameter of this epimere is punching design size D vertically in described punching, and the internal diameter of this hypomere is the punch design size, and said conical surface section connects two sections.

The height of said conical surface section is 1/3 of a pressing sheet material thickness, and the height of epimere is 2/3 of a sheet metal thickness.

After adopting such scheme, because the utility model is designed to three-stage structure with the punching of blanking die, epimere is the design size of traditional punching; Hypomere is the design size of punch, is connected by conical surface section between two sections, like this when punching press; The epimere of punching can guarantee heavy-gauge sheeting is thrust; Punching conical surface section and hypomere can push the sheet material that thrusts again, revise the collapse angle and the burr at stamping parts edge, make collapse angle and burr of thick-plate parts surface obtain eliminating fully; Part quality has obtained certain raising, thereby can realize the Precision Machining of heavy-gauge sheeting.

Description of drawings

Fig. 1 is the structural representation of existing blanking die;

Fig. 2 is the sketch map that adopts the slab stamping parts of existing blanking die processing;

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

Fig. 3 A is the partial enlarged drawing of the utility model punching place;

Fig. 4 is the sketch map that adopts the slab stamping parts of the said device processing of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to detail.

What the utility model disclosed is a kind of smart impact extrusion pressure device, like Fig. 2, shown in 3, is the preferred embodiment of the utility model.Said smart impact extrusion pressure device mainly comprises convex mould base 1, punch 2 and die 3, on die 3, has punching 31.

The key of the utility model is: described punching 31 is vertically from top to bottom according to being provided with epimere 311, conical surface section 312 and hypomere 313; The internal diameter of this epimere 311 is punching design size D; The internal diameter of this hypomere 313 is punch design size d, and said conical surface section 312 connects two sections.The height of this conical surface section 312 generally can be 1/3 of sheet metal thickness, and the height of epimere 311 is 2/3 of a sheet metal thickness.

After described punching 31 improvement; Epimere 311 sizes of punching 31 tops can guarantee heavy-gauge sheeting is thrust; The conical surface section 312 and the hypomere 313 of punching 31 belows can push the sheet material that thrusts again, revise the collapse angle and the burr (as shown in Figure 4) at stamping parts edge, thereby improve the quality of part.

Claims

1. a smart impact extrusion pressure device comprises convex mould base, punch and die, on die, has punching; It is characterized in that: from top to bottom according to being provided with epimere, conical surface section and hypomere, the internal diameter of this epimere is punching design size D vertically in described punching, and the internal diameter of this hypomere is the punch design size, and said conical surface section connects two sections.

2. smart impact extrusion pressure device according to claim 1, it is characterized in that: the height of said conical surface section is 1/3 of a pressing sheet material thickness, and the height of said epimere is 2/3 of a sheet metal thickness.