Swing polishing device for complex curved surface polishing machining

Abstract

The invention discloses a swing polishing device for complex curved surface polishing machining. The swing polishing device for complex curved surface polishing machining is composed of a motor (01), a swing vibration mechanism (02), a polishing power head (03) and a polishing tool (04), wherein the motor (01) is connected with a body (23) of the swing vibration mechanism (02) through a flange disc (22); the polishing power head (03) is installed on the body (23) of the swing vibration mechanism (02) through four fixing screws; and the polishing tool (04) is connected with the polishing power head (03) through a connection frame (33), and carries out swing motion with the polishing power head (03). The invention discloses a polishing device enabling the polishing tool to swing around the generatrix of the tool or the section line centre of a machined arc, that is, a rotation centre, by virtue of a torsional vibrator, and enabling the tool to rotate at a high speed around the axis of the tool, so that more grinding material particles on the polishing tool are all capable of carrying out equal polishing machining on all points on the machined surface, thus the purposes of improving polishing quality and polishing efficiency for a complex curved surface are achieved.

Description

technical field [0001] The invention relates to an oscillating polishing device for complex curved surface polishing. Swing to increase the number of abrasive grains polished on the same point, or to process a new polishing method on the concave-convex arc transition surface of the workpiece that is close to the arc direction of the transition surface. On the basis of traditional mechanical polishing, it increases the swing motion in the vertical polishing direction and realizes a larger area of ​​contact with the workpiece through a radially flexible polishing wheel to remove knife lines. Abrasive grains can improve the consistency of surface polishing, and can also form textures on the transition surface through swinging motion that are conducive to improving fatigue strength. The device can be applied to the high-quality polishing process of the full surface of blades and the like, and belongs to the technical field of mechanical processing. Background technique [0002...

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Problems solved by technology

The theoretical research on polishing continues to deepen. For example, Chen Wuyi and Chen Zhitong of Beijing University of Aeronautics and Astronautics have carried out related research on the grinding and polishing of aero-engine blades with five-axis linkage grinding wheels. Optimization, Liu Ruijie and Huang Yunzhen of Chongqing University can effectively prevent grinding burns and cracks by increasing the linear speed of the abrasive belt, selecting reasonable grinding pressure, abrasive belt abrasives, and high-grained abrasive belts. The corresponding polishing equipment still needs Further improvement, traditional polishing devices such as abrasive belts or polishing wheels generally only provide the movement of the abrasive on a certain section of the tool on this section, and process a point on the workpiece at the same time, because the highest abrasive on each tool section The height of the workpiece cannot be completely consistent and fluctuates, leaving obvious marks on the workpiece processing surface, which is difficult to meet the needs of complex curved surface polishing

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