Forming method for motorcycle starting shaft
A forming method and a technology for starting shafts, which are applied in metal extrusion cleaning equipment, metal extrusion, manufacturing tools, etc., can solve the problems of high skill requirements for equipment and personnel, low utilization rate of metal materials, high tool costs, etc., and achieve equipment And low skill requirements for workers, high utilization rate of metal materials, and low production cost
Inactive Publication Date: 2014-12-10
重庆亨睿达机械有限公司
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Problems solved by technology
[0002] As we all know, rectangular splines or involute splines on shaft parts are mostly completed by mechanical processing methods such as gear hobbing and milling, but the use of mechanical processing molding methods has low metal material utilization, long processing hours, high tool costs, Defects such as high requirements for equipment and personnel skills
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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] see figure 1 and figure 2 , a motorcycle starting shaft, the motorcycle starting shaft is provided with an involute spline, and the involute spline on the motorcycle starting shaft is formed by cold extrusion. In this embodiment, three involute splines formed by cold extrusion are arranged on the starting shaft of the motorcycle, which are respectively the first spline 1 for assembling the starting ratchet, the second spline 2 for assembling the return spring seat, As the third spline 3 of the starting arm is assembled, since the first spline 1, the second spline 2, and the third spline 3 are all formed by cold extrusion, compared with machining such as gear hobbing or milling, cold extrusion Pressing is to make the material flow accordi...
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Abstract
The invention discloses a forming method for a motorcycle starting shaft. An involute spline on the motorcycle starting shaft is formed by cold extrusion. Compared with machining methods of hobbing, milling or the like, the forming method has the advantages of being high in production efficiency, high in utilization rate of metal materials, high in product accuracy, low in requirements for equipment and worker skill, low in production cost and the like. Practice shows that utilization rate of materials can reach more than 95%, production efficiency is improved by 5 to 10 times, simultaneously product accuracy can be guaranteed through extrusion dies, and workers can be simply trained to be on duty due to low skill requirements. In addition, the extrusion dies are long in service life compared with machining cutters and can be continuously used for machining more than ten thousand parts.
Description
technical field [0001] The invention relates to a motorcycle accessory, in particular to a molding method of a motorcycle starting shaft. Background technique [0002] As we all know, rectangular splines or involute splines on shaft parts are mostly completed by mechanical processing methods such as gear hobbing and milling, but the use of mechanical processing molding methods has low metal material utilization, long processing hours, high tool costs, Defects such as high requirements for equipment and personnel skills. [0003] Generally, the manufacturing process of the motorcycle starter shaft is as follows: first, the blank is extruded into a stepped shaft shape through a blank extrusion die, and then the involute spline on the starter shaft is processed by mechanical processing methods such as gear hobbing or milling. The above-mentioned defects exist in the processing of involute splines by using this method. In order to overcome various defects in the processing of i...
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IPC IPC(8): B21C23/02B21C25/02B21C43/00
Inventor 刘勇
Owner 重庆亨睿达机械有限公司