CN106583587A

CN106583587A - Rotary-cut and punching product prefabricated member with ultrahigh end face requirement

Info

Publication number: CN106583587A
Application number: CN201611144403.9A
Authority: CN
Inventors: 骆兴顺; 钱晓晨
Original assignee: Suzhou Helin Micro-Nano Technology Co Ltd
Current assignee: Suzhou Helin Micro-Nano Technology Co Ltd
Priority date: 2016-12-13
Filing date: 2016-12-13
Publication date: 2017-04-26

Abstract

The invention provides a rotary-cut and punching product prefabricated member with an ultrahigh end face requirement. The rotary-cut and punching product prefabricated member comprises a body, wherein the body is formed by conducting deep drawing on a material plate and comprises a deep drawing hole. The section of the body is in a reversed-T shape. The rotary-cut and punching product prefabricated member is characterized in that the depth of the deep drawing hole is larger than the required product height. The rotary-cut and punching product prefabricated member has the beneficial effects that end faces of formed products are flat and smooth, side walls are uniform in thickness, and the high requirement for the hole flanging end faces can be met.

Description

Superelevation end face requires rotary-cut punched product prefabricated component

Technical field

The invention belongs to mechanical stamping technical field, and in particular to a kind of superelevation end face requires that rotary-cut punched product is prefabricated Part.

Background technology

As China's industrial expansion, the application of stamping parts are more and more wider, quantity is also increasing, particularly automobile, machine Tool, electrical equipment and electrical, household appliances, electronic product etc. also grow with each passing day to such stamping parts demand, the riveting in stamping parts Position, tapping position, assembling position etc. are required for stamping parts structure as shown in Figure 1, and with science and technology and technology in recent years Progress the size and dimension of product is required it is also increasingly stricter, harsh, it is traditional for the stamping parts structure shown in Fig. 1 Sheet Metal Forming Technology typically through drawing, the defect for rushing such part that the steps such as bottom outlet, hole flanging are made also clearly.

Such as, during hole flanging, while sheet material inner port edge to die brake forming, by by endoporus along the circumferential direction The side wall for expanding and being formed.The common feature of elongation class hole flanging is that blank can produce tangential elongation in the presence of tangential stress Deformation.Before hole flanging blank aperture can with hole flanging when, plate punch effect under constantly expand, that is, plate along the circumferential direction by Elongate, until aperture size is increased to equal to convex mould diameter, form vertical edge, hole flanging terminates.The strain of deformed area is tangential to stretch It is long, it is radially compression, tangential strain ε with axial direction_θIt is gradually reduced to sweep direction from bore edges, therefore thickness is closer to edge It is thinner.Cause the wall unevenness of product even, more up then wall thickness is thinner, meanwhile, product end surface also out-of-flatness, in addition produce split Line.As fruit product requires the sidewall thickness of hole flanging and the end face of hole flanging, it is difficult to meet requirement using such product.

Then rotary-cut product is occurred in that, but existing rotary-cut product still cannot well form the hole flanging of high end face requirement Product.

The content of the invention

The invention provides a kind of superelevation end face requires rotary-cut punched product prefabricated component.

The purpose of the present invention is achieved through the following technical solutions：

Superelevation end face requires rotary-cut punched product prefabricated component, including the body with Drawing Hole formed by a flitch drawing, institute State this body section to assume a " convex " shape, the depth of the Drawing Hole is more than required product height.

Preferably, the chamfered setting in the bottom of the Drawing Hole.

Preferably, the stretching hole depth is more than product height and the stretchable holes bottom chamfer height sum.

Preferably, the aperture of the Drawing Hole is suitable with the diameter of shaping required product.

Preferably, the wall thickness of the Drawing Hole and the wall thickness of required product are suitable.

Preferably, the difference of stretching hole depth and the product height and the stretchable holes bottom chamfer height sum More than 0.5mm.

Beneficial effects of the present invention are embodied in：Product end surface after shaping is smooth, smooth, and side thickness is thin uniform, can be full Foot is to the high request needed for hole flanging end face.

Description of the drawings

Fig. 1：The existing structure schematic diagram of the present invention.

Fig. 2：The structural representation of the present invention.

Specific embodiment

Technical scheme is specifically described with reference to embodiments, present invention is disclosed a kind of superelevation end face requires rotation Punched product prefabricated component is cut, including the body with Drawing Hole formed by a flitch drawing.As shown in Fig. 2 the body cuts Face assumes a " convex " shape, and the depth H 2 of the Drawing Hole is more than required product height.The chamfered setting in bottom of the Drawing Hole, it is described Chamfer radius are R.The aperture of the Drawing Hole is suitable with the diameter of shaping required product.The wall thickness of the Drawing Hole and required product The wall thickness of product is suitable.

Further, the stretchable holes depth H 2 is more than product height and the stretchable holes bottom chamfer height With numerical value generally higher than is in more than 0.5mm.

The product prefabricated component of the present invention can be in latter step rotary-cut punching directly by unnecessary Partial Resection so as to a step Product needed for directly being formed in place, it also avoid the phenomenon of the wall unevenness of shaped article in prior art.

The present invention still has various specific embodiments.All employing equivalents or equivalent transformation and all skills for being formed Art scheme, all falls within the scope of protection of present invention.

Claims

1. superelevation end face requires rotary-cut punched product prefabricated component, including the body with Drawing Hole formed by a flitch drawing, Described body section is assumed a " convex " shape, it is characterised in that：The depth of the Drawing Hole is more than required product height.

2. superelevation end face as claimed in claim 1 requires rotary-cut punched product prefabricated component, it is characterised in that：The Drawing Hole The chamfered setting in bottom.

3. superelevation end face as claimed in claim 2 requires rotary-cut punched product prefabricated component, it is characterised in that：The stretching hole depth Degree is more than product height and the stretchable holes bottom chamfer height sum.

4. superelevation end face as claimed in claim 1 requires rotary-cut punched product prefabricated component, it is characterised in that：The Drawing Hole Aperture is suitable with the diameter of shaping required product.

5. superelevation end face as claimed in claim 1 requires rotary-cut punched product prefabricated component, it is characterised in that：The Drawing Hole Wall thickness is suitable with the wall thickness of required product.

6. superelevation end face as claimed in claim 3 requires rotary-cut punched product prefabricated component, it is characterised in that：The stretching hole depth Spend and be more than 0.5mm with the difference of the stretchable holes bottom chamfer height sum with product height.