Asymmetric spline shaft cold extrusion equipment

A spline shaft, cold extrusion technology, used in metal extrusion dies and other directions, can solve the problems of uneven material flow, uneven extrusion force, asymmetric deformation, etc., to reduce the number of mechanical cuts, improve quality, save money The effect of processing costs

Active Publication Date: 2017-12-19
常熟市金华机械股份有限公司
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Problems solved by technology

[0003] The technical problem mainly solved by the present invention is to provide a kind of asymmetric spline shaft cold extrusion equipment, which can overcome the uneven material flow and asymmetric deformation of the asymmetric spline shaft during extrusion, resulting in uneven extrusion force and resulting parts Difficulty in bending, ensuring the precision of the slender spline shaft

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  • Asymmetric spline shaft cold extrusion equipment
  • Asymmetric spline shaft cold extrusion equipment
  • Asymmetric spline shaft cold extrusion equipment

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Embodiment Construction

[0019] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0020] A kind of asymmetrical spline shaft cold extrusion equipment, comprising an extrusion upper die 2 and an extrusion lower die 3, an upper die padding seat 1 is installed above the extrusion upper die 2, and the extrusion lower die 3 The lower mold cushion 4 is installed below, and the upper mold cushion 1 and the lower mold cushion 4 are respectively fixedly installed on the upper working platform and the lower working platform of the hydraulic press; the extrusion upper mold 2 and the extrusion An open positioning block 5 is also arranged between the pressing dies 3. The positioning block 5 is arc-shaped, and the middle shape of the positio...

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Abstract

The invention discloses a cold extrusion equipment for an asymmetrical spline shaft, which comprises an extrusion upper die and an extrusion lower die. A lower die pad is installed, and the upper die pad and the lower die pad are respectively fixedly installed on the upper working platform and the lower working platform of the hydraulic press; between the extrusion upper die and the extrusion lower die An open positioning block is also provided. The invention can overcome the problems of uneven material flow and asymmetric deformation of the asymmetrical spline shaft during extrusion, resulting in uneven extrusion force and bending of parts, and ensures the precision of the elongated spline shaft.

Description

technical field [0001] The invention relates to an asymmetrical spline shaft cold extrusion equipment. Background technique [0002] Driven by the general trend of energy saving and emission reduction, it has become an inevitable trend to develop from the original automobile hydraulic steering (3% energy consumption) to electric steering (0% energy consumption). The car electric steering system has a core part, the middle steering shaft, one of which is a slender solid shaft, and the two ends of the shaft are asymmetrical splines. Because the rigidity of the slender asymmetrical spline shaft is poor, it will be damaged during processing. Vibration will affect the precision of the parts, so this kind of asymmetrical spline shaft cannot be machined. Machining the asymmetrical spline shaft is a difficult problem in the machinery industry. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a kind of asymmetric spline ...

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B21C23/21B21C25/02
Inventor蒋浩
Owner常熟市金华机械股份有限公司