Machining process of small transmission gear shaft of full-automatic roller washing machine

A drum washing machine, processing technology, applied to metal processing equipment, etc., can solve the problems of intermittent tooth shape, poor precision, time-consuming and material waste, etc.

Inactive Publication Date: 2013-02-13
SHANGHAI DONGFU COLD FORGING MFG
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, the tooth profile of this product is processed using traditional cutting technology, which has defects such as intermittent tooth profile, poor precision, and low coaxiality of the tooth profiles at both ends, resulting in

Method used

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  • Machining process of small transmission gear shaft of full-automatic roller washing machine

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Embodiment Construction

[0018] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Also refer to figure 1 As shown, the processing technology of the transmission pinion shaft of the automatic drum washing machine of the present invention comprises the following specific steps:

[0020] A. Use a circular saw machine for blanking;

[0021] B. Annealing;

[0022] C. Use high-strength die steel to manufacture pre-forming dies and tooth-extruding dies with tooth cores;

[0023] D. Carry out one-time extrusion preforming of the blank through the preforming die, and extrude a preformed blank with the same outer circle of the pinion shaft 1;

[0024] E. Phosphating saponification;

[0025] F. Carry out one-time extrusion molding through the tooth extrusion die, and extrude the tooth profile 2 at both ends of the pinion shaft 1;

[0026] G. Machining and trimming corners.

[0027] In step B, the annealin...

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Abstract

The invention discloses a machining process of a small transmission gear shaft of a full-automatic roller washing machine; in the machining process, through once cold forging pre-forming and once cold forging gear extrusion, the continuity of gear forms at two ends of the small gear shaft can be very well satisfied and the machining precision and strength of a product are enhanced, so that the service life of the product is prolonged; moreover, material usage can be also reduced, the efficiency is increased and the cost is reduced.

Description

technical field [0001] The invention relates to a processing technology of a pinion shaft, more specifically, relates to a processing technology of a transmission pinion shaft of a fully automatic drum washing machine, and belongs to the technical field of cold forging precision forming technology. Background technique [0002] see figure 1 As shown, the pinion shaft 1 is a key component in the transmission system of the fully automatic drum washing machine. The product is often in the situation of large eccentric load, and is subjected to alternating load for a long time, the stress situation is complicated, and the working condition is bad. Therefore, there are high requirements for the product's fatigue resistance and torque resistance. The structural feature of the pinion shaft 1 is that both ends have teeth. At present, the tooth profile of this product is processed using traditional cutting technology, which has defects such as intermittent tooth profile, poor preci...

Claims

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Application Information

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IPC IPC(8): B23P15/14B21J5/02
Inventor 廖泽寰廖泽亮
Owner SHANGHAI DONGFU COLD FORGING MFG
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