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Burr-free punching method and punching system

A burr-free punching technology, which is applied in the field of burr-free punching methods and punching systems, can solve problems affecting the quality of workpieces, and achieve the effect of improving quality and eliminating deburring processes

Inactive Publication Date: 2015-12-16
孙昌清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The stamping burrs produced by the workpiece on the peripheral contour of the large plane perpendicular to the punch running direction seriously affect the quality of the workpiece

Method used

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  • Burr-free punching method and punching system
  • Burr-free punching method and punching system
  • Burr-free punching method and punching system

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Embodiment Construction

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0031] Such as image 3 As shown, the burr-free blanking method of the present invention comprises the following steps:

[0032] S1. Punch and form grooves 4 on both sides of the pre-punching position 3 on the strip 1 to separate the pre-formed part of the workpiece 2 from the strip 1 . The pre-punching position 3 corresponds to the contour of the workpiece 2 to be formed. Step S1 specifically includes step S11 and step S12. Step S11 is to place the strip 1 between the preforming punch and the die and align and fix it. The strip 1 in this embodiment is a metal plate. Step S12 is to start the press machine, a slide block of the press machine makes the pre-forming punch form the groove 4 on the strip 1 by stamping. Th...

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PUM

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Abstract

The invention relates to a burr-free blanking method and a blanking system. The blanking method comprises the following steps that S1, grooves (4) are punched and formed at the two sides of a pre-blanking position (3) arranged on a bar material (1) so that a pre-forming part of a workpiece (2) is separated from the bar material (1); and S2, the pre-blanking position (3) of the bar material (1) is subjected to blanking so that the workpiece (2) is separated from the bar material (1), and the blanking process comprises hole punching and / or blanking procedures. The blanking system comprises a pre-forming device and a blanking device, wherein the pre-forming device is used for forming the grooves (4) in the bar material (1), the blanking device is used for blanking the workpiece (2), and the grooves (4) are positioned at the two sides of the pre-blanking position (3) of the workpiece (2) arranged on the bar material (1). The workpiece manufactured by adopting the burr-free blanking method and the blanking system provided by the invention has no punching burr at the peripheral outline of the large plane vertical to the operation direction of a male mold, the deburring work procedure of punching elements is directly omitted, and in addition, the quality of the workpiece is high.

Description

technical field [0001] The present invention relates to a punching method and a punching system, more specifically, to a burr-free punching method and a punching system. Background technique [0002] Punching processing is the most basic processing procedure in stamping production. The traditional blanking process is realized by using a general-purpose press and a punching die composed of convex and concave dies. Since there is always a gap between the punch and the die, the workpiece processed by the traditional blanking method has stamping burrs on the peripheral contour of the large plane perpendicular to the running direction of the punch. The surface of the lower plane of the punch, the stamping burr exceeds the large plane of the workpiece, such as figure 1 As shown, the thickness of the strip material used to manufacture the workpiece is t, and the workpiece includes burrs 201 , fractured zones 202 , bright zones 203 and rounded corners 204 from top to bottom. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D28/02B21D28/14
Inventor 孙昌清
Owner 孙昌清