Processing equipment and manufacturing method of hollow train shaft

一种加工设备、火车轴的技术，应用在金属加工设备、制造工具、金属轧制等方向，能够解决降低零件承载能力、生产效率低、加工余量大等问题，达到节约材料、提高生产效率的效果

Active Publication Date: 2015-05-27
SHANDONG TAIJIN PRECISION FORGING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The usual method for processing hollow train shafts is: after the bar is forged and shaped, then it is manufactured into a hollow train shaft by machining. Forging, only the method of deep hole drilling can be used, resulting in long processing time, high processing difficulty, low production efficiency, high processing cost, low material utilization rate, and difficult to guarantee product quality
Another method of processing hollow train axles is: hot-rolled ultra-thick-walled seamless steel pipes are processed by mechanical cutting. The hollow train axles processed in this way have the following problems: machining allowance Larger, lower material utilization rate, discontinuous forging streamline during turning, reducing the bearing capacity of parts

Method used

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Examples

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Effect test

Embodiment

[0028] Example A processing and manufacturing equipment for hollow train axles

[0029] figure 1 The overall structure of the processing and manufacturing equipment for the hollow train axle of this embodiment is shown, which is mainly composed of the feeding system 、 Pushing device 6, cross wedge rolling mill 1, and mandrel rod advancing and retreating mechanism are composed, and the above-mentioned parts are arranged in a straight line.

[0030] The feeding system is a transmission mechanism that transfers the heated hollow bar from the heating furnace to the feeding platform, and is mainly composed of a power system and a transmission chain plate.

[0031] The pushing device is mainly composed of an air source, a cylinder, a pushing head 7, and a feed table 8, and the pushing head 7 is connected to the cylinder.

[0032] The cross wedge rolling mill is mainly composed of a motor, a reducer, a sub-gearbox, a rolling mill archway, and a rolling mandrel. The connection...

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PUM

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Abstract

The invention relates to processing equipment and a manufacturing method of a hollow train shaft. The processing equipment of the hollow train shaft comprises a feeding system, a pushing device, a cross wedge rolling mill, a core rod driving and reversing mechanism and a sensor. The feeding system, the pushing device, the cross wedge rolling mill and the core rod driving and reversing mechanism are arranged in a straight line shape; the pushing device is mainly formed by an air source, an air cylinder and a feedbed; the core rod driving and reversing mechanism is mainly formed by an oil cylinder, a core rod and a core rod rotating device; the sensor is an optoelectronic switch, or a proximity switch, or a magnetic switch. According to the processing equipment and the manufacturing method of the hollow train shaft, the metal streamline of the hollow train shaft keeps smooth and continuous, and the streamline arrangement conforms to the longitudinal cross-section shape of the hollow train shaft-approximate to the final product shape, so that the materials are saved, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to a rolling technology of a hollow shaft, in particular to a cross wedge rolling technology of a hollow train shaft. Background technique [0002] The usual method for processing hollow train shafts is: after the bar is forged and shaped, then it is manufactured into a hollow train shaft by machining. Forging, only the method of deep hole drilling can be used, resulting in long processing time, high processing difficulty, low production efficiency, high processing cost, low material utilization rate, and difficult to guarantee product quality. Another method of processing hollow train axles is: hot-rolled ultra-thick-walled seamless steel pipes are processed by mechanical cutting. The hollow train axles processed in this way have the following problems: machining allowance Larger, lower material utilization, discontinuous forging streamlines during turning, reducing the bearing capacity of parts. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21H8/00B21H9/00
Inventor 于涛陶润祥
Owner SHANDONG TAIJIN PRECISION FORGING CO LTD
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