A kind of welding tensioner processing method

Abstract

The invention belongs to the field of pulley manufacture, and in particular relates to a processing method for a welded tensioner pulley. The invention includes: (1) separate forming of parts; (2) friction welding; (3) spinning; (4) inner circle and outer end face of the car; (5) other end face of the car; (6) surface treatment; (8) ) Pressure bearing cover; (9) Paint. A welding type tensioner processing method provided by the present invention adopts the steps of separate forming of parts, friction welding, spinning forming, etc., which overcomes the problems of large material waste and low production efficiency in the prior art, and has the advantages of low material utilization rate, The technical effect of high production efficiency and low production cost. Forming in two parts can effectively reduce the deformation resistance of the metal, and strengthening the toughness of the metal does not require high forming machinery, which is more beneficial to the protection of the workpiece. In the present invention, the two parts are connected together by friction welding, and the strength of the friction welding is greater than that of the material itself.

Description

technical field [0001] The invention belongs to the field of pulley manufacture, and in particular relates to a processing method for a welded tensioner pulley. Background technique [0002] The tensioner is mainly composed of a fixed shell, a tensioning arm, a wheel body, a torsion spring, a rolling bearing and a spring bushing, etc., and can automatically adjust the tension according to the different degrees of tension of the belt, making the transmission system stable, safe and reliable. The tensioner is a vulnerable part of automobiles and other spare parts. The belt is easy to be stretched after a long time. Some tensioners can automatically adjust the tension of the belt. In addition, with the tensioner, the belt runs more smoothly and the noise is small. , and can prevent slipping. Since the function of the tensioner is to adjust the tightness of the timing belt, it is generally replaced together with the timing belt to avoid any worries. There is no need to change ...

AI Technical Summary

Problems solved by technology

The traditional tensioner of this type generally uses two half-side wheels to be riveted together. Using this manufacturing method will lead to the following defects and deficiencies: the number of rivets is large, and the production efficiency is low; the deformation of the tensioner after riveting is large, The precision of the product becomes lower, and the surface of the flat groove of the synthesized two half-wheels is uneven, which causes the belt to wear easily, and the life of the belt is reduced accordingly; the flat part where the two half-wheels fit with the bearing is small, and the bearing is easy to loosen or get stuck after assembly , bearing life is short

If the method of welding after stamping is adopted, there will be residual stress and deformation in the tensioner wheel, resulting in

Through the search, the inventor did not find any relevant patents that had been authorized, but only retrieved a tensioner forming process of 201610377854.0, which is a method of forming only by extrusion, and this type of method destroys metal materials to varying degrees The toughness of the tensioner cannot guarantee the strength of the tensioner

Images