Method for forming cup-shaped component with gear

Abstract

The invention discloses a method for forming a cup-shaped component with a gear, comprising the following steps: (1) assembling: inserting a mandrel (2) with a profiled block (1) into a hollow billet (3), wherein the profiled block (1) is a round block with a plurality of sections of curved surfaces on the outer side; (2) placing: placing the hollow billet (3) into a concave die (4); (3) pressing: pressing a convex die (5) down so that the curved surfaces of the upper part of the profiled block (1) is in a concave shape, a middle through hole is formed on the mandrel (2), the lower part of the concave die (4) in a tooth shape and a component is formed; and (4) discharging: making an ejector (6) on the lower part of the concave die (4) move upwards to eject the mandrel (2) and the profiled block (1) away from the component and the component out of the concave die (4). The method for forming the cup-shaped component with the gear has the advantages of simple process and convenience of processing. The utilization rate and the forming precision of materials are obviously improved, and the service life of the component is obviously prolonged.

Description

technical field [0001] The invention relates to a cup forming method, in particular to a geared cup forming method. Background technique [0002] At present, the processing of the curved surface concave and tooth shape of the cup-shaped parts of the one-way starter gear has not yet been processed by cutting. The existing common practice is to use two processing methods for processing: one is to use solid blanks Although it is feasible to form the whole punch by cold extrusion, the coaxiality between the concave shape of the curved surface and the tooth shape is poor, which directly affects its performance, and the middle hole and the upper end surface of the blank need to be subsequently cut The processing, production efficiency and material utilization rate are low. At the same time, the structure of the punch used in extrusion forming is also relatively complicated, the processing is difficult, and the cost is high. The second is to divide the upper and lower gears of the...

AI Technical Summary

Problems solved by technology

[0002] At present, the processing of the curved surface concave and tooth shape of the cup-shaped parts of the one-way starter gear has not yet been processed by cutting. The existing common practice is to use two processing methods for processing: one is to use solid blanks Although it is feasible to form the whole punch by cold extrusion, the coaxiality between the concave shape of the curved surface and the tooth shape is poor, which directly affects its performance, and the middle hole and the upper end surface of the blank need to be subsequently cut Processing, production efficiency and material utilization are low. At the same time, the structure of the punch used in extrusion molding is also relatively complicated, which is difficult to process and high in cost.

The second is to divide the upper and lower gears of the cup-shaped piece into two parts, which are cut and processed separately and then combined into one. This also makes the processing difficult, and the production efficiency and material utilization are low. At the same time, due to various shapes The fibers on the surface are cut off, which seriously affects the service life

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