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Piston machining process

A processing technology and piston technology, which is applied in the field of piston processing technology, can solve the problems of difficult control of processing precision, complicated processing procedures, high processing cost, etc., and achieve the effects of high processing precision, improved production efficiency and good wear resistance

Inactive Publication Date: 2018-06-19
CIXI LONGSHAN AUTOMOBILE PART
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the piston processing technology in the brake system mostly adopts the method of cold extrusion and finishing. The disadvantages of this processing technology are that the processing process is complicated, the processing cost is high, and the processing accuracy is difficult to control. The size deviation is large, which affects the Performance after assembly

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Embodiment Construction

[0034] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] refer to Figure 1 to Figure 2 , the present invention provides a kind of piston processing technology, it comprises the following steps: a, cut material, select the material of SPHE to carry out blanking treatment, the size after blanking is that diameter is greater than or equal to 115.8mm, and is less than or equal to 116.2mm, and thickness is 6mm The cylinder, the punch selected for cutting is 120T; b, stretching, the blank is stretched for the first stretch, the second stretch, the third stretch, the fourth stretch, the first stretch After the outer diameter is 77mm, the inner diameter is greater than or equal to 64.7mm and less than or equal to 65.3mm, the height is greater than 46mm and less than 47.5mm, the fillet at the bottom is R30mm; after the second stretch, the outer diameter is 65mm, and the inner diameter is greater than or equal...

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Abstract

The invention provides a piston machining process. The piston machining process comprises the following steps of a, material cutting; b, stretching; c, bottom flattening; d, pre-bending; e, end flattening; f, end face turning; g, slot rolling; h, turning on the outer cylindrical surface of a blank; i, rough grinding on the outer cylindrical surface, and rough machining on the outer cylindrical surface through a grinding machine; j, semifinishing machining; k, accurate grinding; l, degreasing; m, heat treatment; n, polishing; and o, optical detection. The piston machining process is reasonableand proper in manufacturing procedure, high in machining precision and good in wear resistance. Manpower and equipment resources can be effectively reduced through multi-position forming. The production efficiency is improved. The cost is lowered.

Description

technical field [0001] The invention relates to a piston, in particular to a piston processing technology. Background technique [0002] The brake pump is composed of a master brake cylinder (Master Brake Cylinder) and a brake cylinder (Front & Rear Wheel Brake Cylinder). It is the main matching part of the hydraulic brake. There is a tank for storing brake oil on the top of it, and a piston in the cylinder below it. The piston is acted by the brake pedal in the cylinder and then through the push rod to transmit the brake oil pressure in the cylinder to the sub-cylinders of each wheel. It is also a hydraulic brake device and is configured in the brake cylinder of each wheel. At present, the piston processing technology in the brake system mostly adopts the method of cold extrusion and finishing. The disadvantages of this processing technology are that the processing process is complicated, the processing cost is high, and the processing accuracy is difficult to control. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/10
CPCB23P15/10
Inventor 金云康
Owner CIXI LONGSHAN AUTOMOBILE PART
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