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Spinning technique of pulley

A spinning process and pulley technology, which is applied in the production process of spinning pulleys, can solve the problems of small thickness of the tooth bottom, wrinkles, and influence on the strength of the pulley, and achieve the effect of improving the qualification rate, large force area and uniform force.

Inactive Publication Date: 2012-04-04
湖州湖锻液压机床厂
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the blanks used for spinning pulleys are all formed by stamping or stretching. During the spinning process, defects such as fractures and wrinkles will appear in the transition area of ​​the blank on the blanks, resulting in failure; the pass rate of the pulley is reduced; at the same time, for For the toothed pulley, the thickness of the toothed part is the same as that of the blank during the spinning process, so that the thickness of the tooth bottom of the final product is very small, thus affecting the strength of the pulley

Method used

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  • Spinning technique of pulley
  • Spinning technique of pulley

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Embodiment Construction

[0027] A kind of pulley spinning process, as attached figure 1 As shown, 1 is the blank to be processed, and 1' is the transition part of the large arc of the blank. The large arc transition can avoid the formation of fracture and wrinkle defects in the spinning process; the spinning machine is equipped with a mandrel clamp, and the blank 1 Installed on the mandrel fixture; Install the pre-forming rotary wheel 2 on the spinning machine, so that the working surface of the pre-forming rotary wheel 2 is in contact with the outer edge of the blank 1.

[0028] as attached figure 2 As shown, the main shaft of the spinning machine rotates, driving the mandrel fixture and the blank 1 to rotate; the preforming rotary wheel 2 is rotated and moved horizontally to spin the blank 1, and the large arc transition part 1' of the blank is spun into a The preformed part 2' is a primary semi-finished product.

[0029] as attached image 3 As shown, the primary forming rotary wheel 3 is inst...

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Abstract

The invention relates to a production technique of pulley and specifically to a spinning technique of pulley, comprising the following steps of: 1) blanking; 2) performing spinning; 3) upsetting spinning; 4) spinning forming. The external edge of said blank employs orthodrome transition. The spinning technique of pulley provided by the invention improves the shape of the blank, thus the blank is free of fillet transition area; with the orthodrome transition, crack or wrinkle cannot be occurred in the process of spinning. Meanwhile, with this spinning technique, the tooth flute of finished component is thicker than that formed by other techniques; therefore, the strength of pulley can be enhanced obviously and the qualification rate of the pulley manufacture by this spinning technique is improved obviously. The invention belongs to the field of pulley manufacturing technique.

Description

technical field [0001] The invention relates to a production process of a spinning belt pulley. It belongs to the technical field of belt pulley manufacturing. Background technique [0002] At present, the blanks used for spinning pulleys are all formed by stamping or stretching. During the spinning process, defects such as fractures and wrinkles will appear in the transition area of ​​the blank on the blanks, resulting in failure; the pass rate of the pulley is reduced; at the same time, for For the toothed pulley, the thickness of the toothed part is the same as that of the blank during the spinning process, so that the thickness of the tooth bottom of the final product is very small, thus affecting the strength of the pulley. Contents of the invention [0003] The object of the present invention is to provide a pulley spinning process to solve the above technical problems. It has the technical effect of improving the qualified rate of products and enhancing the streng...

Claims

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Application Information

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IPC IPC(8): B21D22/16
Inventor 董利强
Owner 湖州湖锻液压机床厂
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