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Punching device preventing automobile sealing strip with skeleton from machining deformation

A technology for processing and deforming automobile sealing strips, which is applied in the field of punching devices and punching devices for automobile sealing strips with skeletons, which can solve problems such as skeleton deformation and uneven cut surface, and prevent skeleton deformation and uneven cut surface , the effect of preventing deformation

Active Publication Date: 2014-04-30
HENNIGES (CHINA) AUTOMOTIVE SEALING SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a punching device that can prevent the deformation of the automobile weather strip with skeleton in order to solve the problems in the prior art that the incision surface is uneven and the skeleton deformed after punching the weather strip with skeleton.

Method used

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  • Punching device preventing automobile sealing strip with skeleton from machining deformation
  • Punching device preventing automobile sealing strip with skeleton from machining deformation
  • Punching device preventing automobile sealing strip with skeleton from machining deformation

Examples

Experimental program
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Effect test

Embodiment 1

[0063] figure 1 Shown is the sealing strip to be processed in this embodiment. The sealing strip is composed of rubber 4 covered with aluminum strip 3, and can also be composed of rubber 4 covered with steel strip. The incisions required to be punched include longitudinal section 1 and transverse section. 2. An inclined angle is formed between the intersection line formed by the intersection of the longitudinal section 1 and the transverse section 2 and the extension direction of the sealing strip, and the angle can be 90° or any acute angle; the longitudinal section 1 and the transverse The intersection of the tangent planes 2 forms a tangent plane angle, and the tangent plane angle can be any angle within the range of 0° to 180° except 0° and 180°; the intersection of the longitudinal tangent plane 1 and the transverse tangent plane 2 is an arc connection, or It is a straight line connection; the surface of the longitudinal section 1 and the transverse section 2 is required ...

Embodiment 2

[0072] The punching device for preventing the processing and deformation of the automobile weather strip with skeleton according to the present invention includes a female mold 7, a pressing plate 5 and a cutter 6, and a groove 9 is arranged on the female mold 7 for placing the weather strip, and the The shape of the groove 9 matches the contour shape of the sealing strip to be processed;

[0073] A liftable pressing plate 5 is provided above the female mold 7 for pressing the sealing strip. The pressing plate 5 can move up and down under power drive, and the part of the pressing plate 5 in contact with the surface of the sealing strip is formed as Shape to match the profile of the weatherstrip;

[0074] One end of the female mold 7 is provided with a guiding mechanism 8, which intersects with the groove 9 to form a guiding angle γ, and in this embodiment, the guiding angle γ is set to be 90°;

[0075] There is a sliding fit between the guide mechanism 8 and the cutter 6, whi...

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Abstract

A punching device preventing an automobile sealing strip with a skeleton from machining deformation comprises a female die 7, a pressure plate 5 and a cutter 6, and is characterized in that a groove 9 for placing the sealing strips and a guide mechanism 8 for guiding the cutter 6 to finish the punching operation are arranged on the female die 7; the guide mechanism 8 is intersected with the groove 9 to form a guiding included angle Gamma; the cutter 6 is provided with a horizontal cutting edge 12 and a vertical cutting edge 10; the moving direction of the horizontal cutting edge 12 and the moving direction of the cutter 6 form a cutting edge included angle Beta 1; one end, far from the pressure plate 5, of the horizontal cutting edge 12 inclines towards the punching advance direction of the cutter 6; the cutting edge included angle Beta 1 is smaller than the guiding included angle Gamma; in punching, the sealing strips are cut step by step by the horizontal cutting edge 12 at first, then are cut by the vertical cutting edge 10, so that the impulsive force of the cutter 6 on the sealing strips is reduced, and the deformation of the sealing strips is further reduced, the incision surfaces of the sealing strips are smooth, and the skeleton deformation is avooided.

Description

technical field [0001] The invention relates to a punching device, in particular to a punching device with a skeleton automobile sealing strip, which belongs to the technical field of cutting and processing of automobile parts. Background technique [0002] The sealing strip is one of the important parts for the sealing of automobile doors and windows, and it is also one of the important decorative parts on the automobile. In the actual production of the sealing strip, after the sealing strip is formed, it is usually necessary to machine a cutout at its end to meet the requirements of assembly and connection when the sealing strip is used. like figure 1 The sealing strip shown is a commonly used sealing strip for car window sealing at present. According to the requirements of assembly and connection, a slit needs to be machined at one end of the sealing strip, and the incision is required to have a longitudinal section 1 and a transverse section 2. Since a part of the long...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B26F1/44
Inventor 张正伟李辉
Owner HENNIGES (CHINA) AUTOMOTIVE SEALING SYST CO LTD
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