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Casting axle housing pressing shaft tube method

A technology for axle housings and shaft tubes, which is applied in the manufacture of tools, metal processing, metal processing equipment, etc. It can solve the problems of difficult control of freezing temperature, high repair rate, and insufficient press-fitting of shaft tubes, etc., to achieve the promotion of press-fit products Quality, reduce labor intensity, improve production efficiency

Inactive Publication Date: 2014-04-23
QINGTE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of pressing the shaft tube of the cast steel wire, the shaft tube was frozen with liquid nitrogen and then pressed into the casing. The freezing time was as long as 20 minutes. The freezing temperature was not easy to control, and the shrinkage of the shaft tube was uneven. The phenomenon of tube pressing is not in place, and the production efficiency is low; and the pressure of the press is 10-15MPa during press-fitting, the pressure is high, it is easy to crush the thread of the shaft tube, and the repair rate is high

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  • Casting axle housing pressing shaft tube method

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Embodiment 1

[0016] Example 1, such as figure 1 As shown, this embodiment discloses a method for pressing an axle tube by casting an axle housing, including the following steps:

[0017] (1) Hoist the cast axle housing 1 to the workbench on the press machine 3;

[0018] (2) The workbench retreats to the heating station;

[0019] (3) Insert the heating probe of the induction heating press-fitting hydraulic machine into the inner holes at both ends of the cast axle housing for induction heating;

[0020] (4) During the heating process, place the shaft tube 2 on the tooling at both ends and wait for press fitting;

[0021] (5) After 1.5 minutes, the heating probe will automatically withdraw from the inner hole of the casting axle housing;

[0022] (6) The workbench advances to the press-fitting station;

[0023] (7) Stretch out the pressure heads at both ends, press the shaft head into the cast axle housing, exit after maintaining the pressure, and the pressing is completed.

[0024] In ...

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Abstract

The invention discloses a casting axle housing pressing shaft tube method. The casting axle housing pressing shaft tube method comprises the following steps of (1) hanging a casting axle housing to a workbench which is arranged on a pressing machine; (2) enabling the workbench to be retreated to a heating position; (3) extending a heating probe of an induction heating pressing hydraulic machine to inner holes at two ends of the casting axle housing to perform induction heating; (4) putting the shaft tube on tools at two ends to wait for pressing during the heating process; (5) enabling the heating probe to be automatically retreated from the inner holes of the casting axle housing1.5 minutes later; (6) enabling the workbench to move forward to a pressing station; (7) enabling two pressing ends at two ends to extend out, pressing a shaft end into the casting axle housing, enabling the shaft end to be retreated from the casting axle housing after pressure maintaining and achieving pressing. The casting axle housing pressing shaft tube method has the advantages of greatly improving the pressing product quality, improving the production efficiency, reducing a large portion of costs and reducing worker labor intensity.

Description

technical field [0001] The invention relates to a method for press-fitting a shaft tube of a casting axle case used in the drive axle assembly industry. Background technique [0002] In the process of pressing the shaft tube of the cast steel wire, the shaft tube was frozen with liquid nitrogen and then pressed into the casing. The freezing time was as long as 20 minutes. The freezing temperature was not easy to control, and the shrinkage of the shaft tube was uneven. The phenomenon of tube pressing is not in place, and the production efficiency is low; and the pressure of the press is 10-15 MPa during press-fitting. The pressure is high, and the thread of the shaft tube is easy to be crushed, and the repair rate is high. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for casting axle housing hot-pressed axle tubes. [0004] The present invention adopts following technical scheme: [0005] A method fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P11/02
CPCB23P11/025
Inventor 纪爱师纪建奕刘建黄玉亭
Owner QINGTE GRP