Machining process of hydraulic support lifting jack cylinder

A technology of hydraulic support and processing technology, which is applied in the direction of lifting devices, etc., which can solve the problems of inability to eliminate welding internal stress, long production cycle, and short product life, and achieve the effects of eliminating welding internal stress, prolonging service life, and improving production efficiency

Inactive Publication Date: 2014-09-17
河南伟彤重型装备制造有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a hydraulic jack cylinder processing technology, which overcomes the defects that the

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  • Machining process of hydraulic support lifting jack cylinder
  • Machining process of hydraulic support lifting jack cylinder
  • Machining process of hydraulic support lifting jack cylinder

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Embodiment Construction

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0029] Such as figure 1 As shown, the main steps of the processing technology of the present invention are material selection and blanking, welding head seat, normalizing heat treatment, turning end face, chamfering outer corner, scraping and rolling inner hole wall surface, turning inside hole, drilling through liquid hole, deburring, welding cylinder end.

[0030] The steps briefly described above can be specifically the following steps:

[0031] Step 1) Select the pipe material of 27SiMn as the processing raw material of the cylinder barrel. After the pipe material is qualified, the size is determined and the material is cut to obtain the cylinder barrel. In this step, the following steps are included: first, t...

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Abstract

The invention relates to a machining process of a hydraulic support lifting jack cylinder, in particular to a machining process of the hydraulic support lifting jack cylinder through a cold drawn pipe made of 27SiMn. The machining process comprises the steps that firstly, the pipe made of the 27SiMn is selected as machining raw materials of the cylinder, after the pipe is detected qualified, the size is determined, blanking is carried out, and the cylinder is obtained; secondly, a headstock is welded to the cylinder; thirdly, normalization heat treatment is carried out on the cylinder; fourthly, the end surfaces of the cylinder are turned, and the cylinder is chamfered; fifthly, the wall surface of an inner hole of the cylinder is machined in a scraping and rolling mode; sixthly, a built-in opening of the cylinder is turned; seventhly, a hydraulic hole is drilled in the cylinder, burrs on the cylinder are removed, the bottom of the cylinder is welded in a rotary mode, and the hydraulic support lifting jack cylinder is obtained. The machining process of the hydraulic support lifting jack cylinder has the advantages of being simple in process step, eliminating inner stress of welding, prolonging the service life of products, improving production efficiency and lowering production cost.

Description

technical field [0001] The invention relates to a processing technology for a cylinder barrel of a hydraulic support jack, in particular to a process for manufacturing a cylinder barrel of a hydraulic support jack with a cold-drawn tube whose material is 27SiMn. Background technique [0002] The material is 27SiMn (the pipe made of 27SiMn is a kind of pipe in the seamless steel pipe, which has good toughness, high strength and wear resistance). The traditional processing methods of the hydraulic support jack cylinder include the following processes: [0003] Process 1: Cutting 27SiMn pipe material—heat treatment quenching and tempering hardness HB240~280—flat end face, chamfering—rough boring inner hole—welding head seat—repairing outer chamfering—fine boring inner hole— Frame nest car built-in port - transfer welding cylinder bottom, complete cylinder barrel processing. Due to the domestic pipe material, the inner and outer circles are not concentric, if this process is us...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00B66F3/43
Inventor 谢林修况龙青黄之纶
Owner 河南伟彤重型装备制造有限公司
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