Automobile plate spring shot blasting apparatus and shot-blasting process

Abstract

The invention provides an automobile plate spring shot-blasting apparatus and a shot-blasting process and belongs to the fields of surface treatment equipment and processes of spring steels. The automobile plate spring shot-blasting apparatus is characterized by comprising a shot storage device, a weighing shot-conveying device, a shot-blasting device and a steel shot recovering device; an output opening of the shot storage device is orderly connected with the weighing shot-conveying device, the shot-blasting device and the steel shot recovering device through a conveying pipe; the steel shot recovering device is connected with an input opening of the shot storage device through a stepped conveyor belt. According to the automobile plate spring shot-blasting apparatus, the structure of the apparatus and the production process are improved so that the production efficiency is improved; the surface shot-blasting strength and the covering surface of the spring steel can be accurately controlled, and the shot-blasting quality can be improved; the automobile plate spring shot-blasting apparatus is further capable of collecting, filtering and sorting the used steel shots, and automatically filtering out broken shots and iron residue.

Description

technical field [0001] The invention belongs to the field of spring steel surface treatment equipment and technology, and in particular relates to an automobile leaf spring shot blasting equipment. Background technique [0002] Shot blasting includes shot blasting cleaning and shot blasting strengthening. As the name suggests, shot blasting cleaning is to remove impurities such as surface oxide skin to improve the appearance quality. Shot blasting strengthening is to use high-speed moving projectile flow to continuously impact the surface of the strengthened workpiece, forcing the target surface and surface layer The following changes occur during the cyclic deformation process: 1. The microstructure is modified; 2. The non-uniform plastic deformation outer layer introduces residual compressive stress, and the inner surface produces residual tensile stress; 3. The roughness of the outer surface changes. This process can improve the fatigue fracture resistance of the spring s...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional shot blasting process cannot accurately control the speed, angle, and distance between the shot head and the steel plate surface for precise control. In addition, for the high-speed impact and crushing problems that occur during normal use of shot blasting, automatic sorting and filtering cannot be achieved. , which seriously affects the speed and quality of the continuous cycle of shot blasting

[0004] In addition, the general shot blasting process adopts extensive hitting and collision operations, and the degree of refinement is low, and it is impossible to achieve polishing treatment on the surface of the workpiece. Instead, it relies on an additional polishing machine for secondary processing, which seriously reduces production efficiency.

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