Eccentric shaft reducing mechanism for spline roll forming equipment

Abstract

The invention relates to an eccentric shaft reducing mechanism for spline roll forming equipment. The eccentric shaft reducing mechanism comprises a servo motor and a speed reducer, wherein the servo motor and the speed reducer are connected with an adjusting input shaft; an adjusting pinion is arranged on the adjusting input shaft and is in meshed transmission with an adjusting gear ring; the adjusting gear ring is in meshed transmission with an adjusting main gear; the adjusting main gear is arranged at the rear end of an eccentric shaft; the eccentric shaft is supported by a front sliding bearing and a rear sliding bearing; an eccentric shaft sleeve is arranged on the middle part of the eccentric shaft; an eccentric shaft sliding base is matched with a guide rail; a rolling wheel installation rear base is fixed to the eccentric shaft sliding base; a rolling wheel installation front base is fixed to the rolling wheel installation rear base; a rolling wheel is arranged on a rolling wheel shaft; the rolling wheel shaft is supported on the rolling wheel installation rear base and the rolling wheel installation front base; and the servo motor and the speed reducer move, so that rotation is transferred to the eccentric shaft to drive the eccentric shaft sleeve and the eccentric shaft sliding base to move along the radial directions of workpieces, and the aim of reducing during the rolling of splines of different specifications is fulfilled. The eccentric shaft reducing mechanism has the advantages of high automaticity, convenience for adjustment, high accuracy and the like.

Description

technical field [0001] The invention belongs to the technical field of advanced material forming, and in particular relates to an eccentric shaft-type variable diameter mechanism of spline rolling forming equipment. Background technique [0002] The spline is a part used to transmit motion and torque between shafts in the mechanical system. As a connection method with high connection strength, compact structure and high reliability, the spline connection has the advantages of large contact area, high bearing capacity, fixed Good centrality, good guidance, less stress concentration, less weakening of the strength of the shaft and hub, etc., are widely used in many mechanical industries, such as aerospace, automobiles, tractors, ships, machine tools, construction machinery, etc. [0003] In recent years, with the rapid development of the automobile industry, the demand for splines has increased rapidly and the requirements for use have been continuously improved, which poses n...

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Problems solved by technology

[0004] However, the current spline rolling forming process has problems such as limited processing spline modulus and number of teeth, and poor mold versatility. One of the reasons for these problems is whether the spline rolling forming equipment has the function of changing diameter

For most of the existing spline roll forming equipment, there are mainly the following types of diameter reduction functions: 1. Without the diameter reduction function, the roll forming of splines with different specifications can be realized by changing the mold; 2. By manually adjusting the mold installation mechanism , Supplemented by bolts to achieve diameter change, the diameter change mechanism is difficult to adjust, and the adjustment accuracy is low; 3. The diameter change is realized by pushing the mold installation mechanism through the traditional hydraulic cylinder. The structure of the diameter change mechanism is complex and the space is large

It can be seen that the existing variable diameter mechanism of spline rolling forming equipment has the problems of difficult adjustment, low precision, complex structure and large space

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