Production method of positioning connecting bracket

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

Active Publication Date: 2020-03-24
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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  • Production method of positioning connecting 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 there are processing surplus materials in the three installation holes, and the surplus materials are reserved for 0.5mm. The remaining material 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 bear...

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Abstract

The invention discloses a production method of a positioning connecting support. The production method is characterized by comprising the following steps of (1) forming a bracket body by continuous fine blanking and removing burrs, (2) bending the bracket body to enable a side surface with a connecting rod mounting hole to be perpendicular to a bottom surface with bearing mounting holes and bosses, and (3) processing the three mounting holes by using a CNC processing milling machine and washing by using ultrasonic waves. The production method has the advantages that a reasonable and efficientmachining procedure is adopted, the machining of a high-precision machine tool, a high-precision clamp and a high-precision cutter is combined, the high-precision positioning connecting support is achieved, the machining problem in the prior art is solved, and breakthrough significance is achieved.

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 Applications(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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