Cold extruding device for asymmetric spline shaft
A spline shaft and cold extrusion technology, applied in the direction of metal extrusion dies, etc., can solve the problems of uneven material flow, asymmetric deformation, uneven extrusion force, etc., to reduce the number of mechanical cutting times, save processing costs, The effect of improving quality
Active Publication Date: 2015-11-04
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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[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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The invention discloses a cold extruding device for an asymmetric spline shaft. The cold extruding device comprises an upper extruding die and a lower extruding die. An upper die jack-up seat is arranged above the upper extruding die, and a lower die jack-up seat is arranged under the lower extruding die. The upper die jack-up seat and the lower die jack-up seat are fixedly arranged on an upper work platform and a lower work platform of an oil press respectively. An openable locating block is further arranged between the upper extruding die and the lower extruding die. By means of the cold extruding device, the problems that extrusion force is uneven and parts are bent due to the fact that material flowing is uneven and deformation is asymmetric when the asymmetric spline shaft is extruded are solved, and the accuracy of long and thin spline shafts is ensured.
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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IPC IPC(8): B21C23/21B21C25/02
Inventor 蒋浩
Owner 常熟市金华机械股份有限公司