Mould for automatically rectifying deviation by utilizing rebounding
An automatic deviation correction and mold technology, which is applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of large bending angles and affecting product quality, and achieve the effect of simple structure and convenient use
Inactive Publication Date: 2016-05-04
杨新刚
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Problems solved by technology
[0003] In order to solve the problem that after the U-shaped bending workpiece of the automobile plate is demoulded, the rebound deformation causes the bending angle to expand, which affects the product quality, and provides a mold that uses the elasticity of the material itself to automatically correct the deviation
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[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0012] As shown in the figure, a recessed groove 3 is formed in the middle of the bottom surface of the punch 1, so that convex ridges are formed on both sides of the bottom surface of the punch 1, and an arc-shaped convex surface is left on the support body 4. The support body 4 is installed in the die 5, and the plate is squeezed between the punch 1 and the die 5. When the workpiece 2 is formed, the bottom is under the action of the groove 3 of the punch 1 and the convex surface of the support body 4. A bow is formed, and after the workpiece 2 is demoulded, the rebound at the bottom of the bow is balanced with the rebound on both sides, so that the workpiece 2 meets the standard requirements.
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The invention discloses a mould for automatically rectifying deviation by utilizing rebounding. The mould comprises a convex mould, a concave mould and a supporting body. The mould is characterized in that a concave groove is formed in the middle of the bottom surface of the convex mould, wherein convex ridges are formed at the two sides of the bottom surface of the convex mould; and an arc-shaped convex surface is arranged on the upper surface of the supporting body. The mould solves the problem that the bending angle is increased by rebound deformation to affect the product quality after a car board U-shaped bent workpiece is de-molded, and is especially suitable for being used in various automobile industries.
Description
technical field [0001] The invention relates to the field of processing tooling for auto parts, in particular to a die for stamping a U-shaped workpiece with a plate. Background technique [0002] The processing of U-shaped bending workpieces of automobile plates is carried out by stamping with punches and dies. Due to the elasticity of the material itself, the two sides of the workpiece will rebound and deform after demoulding, which will make the bending angle of the workpiece larger. In order to solve this problem in production, it is necessary Additional auxiliary measures are labor-intensive and time-consuming, which increases industrial costs. Contents of the invention [0003] In order to solve the problem that after the U-shaped bending workpiece of the automobile plate is demoulded, the rebound deformation causes the bending angle to expand, which affects the product quality, and provides a mold that uses the elasticity of the material itself to automatically corr...
Claims
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IPC IPC(8): B21D5/02B21D37/10
Inventor 杨新刚
Owner 杨新刚