A production method of positioning connection bracket

A production method and a technology for connecting brackets, which are applied in the production field of positioning and connecting brackets, can solve the problems of cracking at the bending point, large bending springback, and difficult to achieve bending accuracy, and achieve stable bending angle and prevent bending cracking. , high precision effect

Active Publication Date: 2021-05-25
ZHONGJING GROUP
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AI Technical Summary

Problems solved by technology

The processing accuracy of the positioning connection bracket on the EGR valve is extremely high, so the processing is difficult. The main processing difficulties are: 1. The product is made of high-strength steel plate material, such as SUS301 4 / 1HA material, which has high hardness and large bending springback. The bending accuracy is difficult to achieve, and it is easy to crack at the bending place; 2. The aperture of the installation hole between the positioning connection brackets and the distance between the installation holes have no maximum entity, and the compensation standard cannot be obtained, so the accuracy is extremely demanding. High, so the use of traditional processing technology will not only make it difficult to achieve processing accuracy, but also cracks will appear at the bend, and the scrap rate is extremely high

Method used

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  • A production method of positioning connection bracket
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Embodiment Construction

[0015] The relevant details of the present invention will be further described below in conjunction with the accompanying drawings.

[0016] The production method of the positioning connection bracket includes the following steps:

[0017] 1) The bracket body 6 is formed by continuous fine blanking and deburred. The bracket body 6 has three installation holes and two bosses 1. The bosses 1 are arranged at both ends of the bracket body 6. Three The installation holes are two bearing installation holes 2 and one connecting rod installation hole 3 respectively. The center points of the three installation holes are on the same straight line, and the three installation holes have machining allowances, and the allowance is 0.5mm. The remaining margin is processed by subsequent milling machines.

[0018] 2) The bracket body 6 is bent so that the side 5 with the connecting rod mounting hole is perpendicular to the bottom surface 4 with the bearing mounting hole and the boss, and the ...

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Abstract

The invention discloses a method for producing a positioning and connecting bracket, which is characterized by comprising the following steps: 1) the bracket body is formed by continuous fine blanking and burrs are removed; 2) the bracket body is bent so that the side surface with the connecting rod mounting hole and the The bottom surface with bearing mounting holes and bosses is set vertically; 3) Three mounting holes are machined with a CNC milling machine, and ultrasonic cleaning is used. The invention adopts reasonable and efficient processing procedures, and combines the processing of high-precision machine tools, high-precision fixtures and high-precision tools to realize high-precision positioning and connecting brackets, solves the processing problems in the prior art, and has breakthrough significance.

Description

technical field [0001] The invention relates to a production method of a positioning connection bracket, in particular to a production method of a positioning connection bracket used on a linear exhaust gas circulation valve. Background technique [0002] The linear exhaust gas circulation valve, or EGR valve, is a mechatronic product installed on the engine to control the amount of exhaust gas recirculation fed back to the intake system. The processing accuracy of the positioning connection bracket on the EGR valve is extremely high, so the processing is difficult. The main processing difficulties are: 1. The product is made of high-strength steel plate material, such as SUS301 4 / 1HA material, which has high hardness and large bending springback. The bending accuracy is difficult to achieve, and it is easy to crack at the bending place; 2. The aperture of the installation hole between the positioning connection brackets and the distance between the installation holes have n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 戴金美高振强罗小辉
Owner ZHONGJING GROUP
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