A die forging production method of hydraulic support connector of coal machine

The technology of a hydraulic support and a production method is applied in the field of forging using die forging to process hydraulic support connectors, which can solve the problems of low production efficiency, low labor intensity, and high processing difficulty, and achieve high production efficiency, low labor intensity, and good surface quality. good quality effect

Inactive Publication Date: 2016-09-21
DINGXIANG COUNTY XINGHUI FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of difficult processing, high labor intensity, high energy consumption, low yield and low production efficiency existing in the existing method for producing coal machine hydraulic support connectors, and to provide an easy-to-process, labor-intensive Die forging production method of coal machine hydraulic support connector with small size, low energy consumption, high yield and high production efficiency

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  • A die forging production method of hydraulic support connector of coal machine

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Embodiment 1

[0026] A die forging production method of a coal machine hydraulic support connector in this embodiment includes the following steps:

[0027] 1) Make a mold

[0028] Design and manufacture the die forging die according to the drawing size requirements of the hydraulic support connector. The die forging die takes the maximum projection surface of the connector as the parting surface, the upper and lower die chambers are both concave dies, and the die forging die is divided by a broken line. For the parting face The oblique parting surface formed by the trend should be as gentle as possible to reduce the drop, so that the flange of the mold is lowered and the depth of the cavity is reduced, thereby improving the strength and life of the mold; the upper module and the lower module of the forging mold are clamped in the mold sleeve at one time Molding, the closed height of the mold is equal to the sum of the height of the upper module and the lower module plus 0.3-0.5mm buffer to...

Embodiment 2

[0043] A die forging production method of a coal machine hydraulic support connector in this embodiment includes the following steps:

[0044] 1) Make a mold

[0045] Design and manufacture the die forging die according to the drawing size requirements of the hydraulic support connector. The die forging die takes the maximum projection surface of the connector as the parting surface, the upper and lower die chambers are both concave dies, and the die forging die is divided by a broken line. For the parting face The oblique parting surface formed by the trend should be as gentle as possible to reduce the drop, so that the flange of the mold is lowered and the depth of the cavity is reduced, thereby improving the strength and life of the mold; the upper module and the lower module of the forging mold are clamped in the mold sleeve at one time Molding, the closed height of the mold is equal to the sum of the height of the upper module and the lower module plus 0.3-0.5mm buffer to...

Embodiment 3

[0060] A die forging production method of a coal machine hydraulic support connector in this embodiment includes the following steps:

[0061] 1) Make a mold

[0062] Design and manufacture the die forging die according to the drawing size requirements of the hydraulic support connector. The die forging die takes the maximum projection surface of the connector as the parting surface, the upper and lower die chambers are both concave dies, and the die forging die is divided by a broken line. For the parting face The oblique parting surface formed by the trend should be as gentle as possible to reduce the drop, so that the flange of the mold is lowered and the depth of the cavity is reduced, thereby improving the strength and life of the mold; the upper module and the lower module of the forging mold are clamped in the mold sleeve at one time Molding, the closed height of the mold is equal to the sum of the height of the upper module and the lower module plus 0.3-0.5mm buffer to...

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Abstract

The invention relates to a die forging manufacturing method for a coal machine hydraulic support connector, and belongs to a forging method for processing a hydraulic support connector through die forging. The problems that in the method for manufacturing the coal machine hydraulic support connector, the processing difficulty is great, the labor intensity is high, the energy consumption is high, the yield is low and the production efficiency is low are mainly solved. The method comprises the four steps that 1, a die is manufactured, the biggest projection plane of the connector is taken as a parting surface, an upper die impression and a lower die impression are both a concave die, parting is conducted through a fold line, and an upper die block and a lower die block of a forging die are formed through one-time clamping in a die sleeve; 2, the die forging connector is manufactured, billet is taken as the raw material, pre-forging billet is obtained through the first fire, and finish forging is conducted for forming through the second fire; 3, excess materials are removed through machining; 4, heat treatment is conducted on the connector, pellet blasting treatment is conduced on the unprocessed surface of the processed connector, thermal refining is conducted, and the surface is coated with black finishing coat; packaging is conducted after the inspection is passed.

Description

technical field [0001] The invention relates to a die forging production method of a coal machine hydraulic support connector, which belongs to a forging method for processing a hydraulic support connector by die forging. Background technique [0002] The hydraulic support connector is an important link connecting the scraper conveyor of the coal mining machine and the hydraulic support. It plays a very important role in pushing and pulling the frame together with the push rod during the advancement of the working face. , under the action of alternating composite loads, it is easy to generate stress concentration, which leads to fracture. Therefore, its performance is of great significance to the normal advancement of the working face. [0003] At present, the main manufacturing technology adopted by the connector is casting and free forging. The main problem of the connectors produced by casting is that during the smelting and crystallization process, the internal crystal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J5/02
Inventor 张仁文孙川廷
Owner DINGXIANG COUNTY XINGHUI FORGING
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