Large thin-wall frame type precision casting part clamping device and clamping method

Abstract

The invention discloses a large thin-wall frame type precision casting part clamping device and clamping method. The upper surface and the lower surface of a part are each provided with two rows of semi-suspended bosses in the parallel side length direction, an end opening area pressing device is arranged in an end opening area of the part, a top face boss pressing device and a bottom face positioning boss pressing device are arranged on the upper surface and the lower surface of the part respectively, and a middle web plate hole area pressing device is arranged in the middle of the part and used for conducting double-face pressing on a web plate of the part. According to the clamping device, the rigidity of precision casting parts can be effectively enhanced, the problems of cutter bouncing, vibration and the like caused by insufficient rigidity of the parts in the machining process are reduced, and the stability and reliability of the machining process are guaranteed. The clamping method is suitable for large thin-wall frame type precision casting parts, the stability of the weak rigidity structure of the parts in the machining process can be improved, and the clamping method is stable, reliable and flexible and has good practicability.

Description

technical field [0001] The invention belongs to the technical field of clamping casting parts, and in particular relates to a clamping device and a clamping method for large thin-walled frame-type precision casting parts. Background technique [0002] While making full use of many excellent properties of metal materials, precision castings can realize the precise molding of large thin-walled complex structures, effectively improve material utilization, reduce the amount of machining, thereby reducing production costs and shortening production cycles. With the development of precision casting technology in recent years, the manufacture of large, thin-walled, complex, integral and precision castings has become the development trend of foreign aerospace vehicle precision casting structural parts manufacturing technology. Such castings have good overall structure and high reliability. , light weight and low processing cost, it is more and more widely used in the aerospace field....

AI Technical Summary

Problems solved by technology

[0006] ■Riveting assembly will cause stress concentration of parts and affect the overall appearance and performance;

[0007] ■Assembly accuracy is low, and the coordination relationship of parts is difficult to guarantee

[0008] Therefore, the integral molding and processing of large thin-walled frame-type precision castings is an effective measure to ensure the processing quality of parts. However, the integrally formed large-scale thin-walled frame-type precision castings have processing bottlenecks such as poor part rigidity and large deformation, and there is an urgent need for stable and reliable Advanced clamping device and method to improve the stability of the processing process of the weak rigid structure of the part, so as to ensure the processing quality of the part

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