Flexible clamp device for weak rigidity workpieces

Abstract

The invention provides a flexible clamp device for weak rigidity workpieces. The flexible clamp device for the weak rigidity workpieces is formed by a plurality of clamp assemblies jointly; every clamp assembly is formed by an execution module, an information collection module and a control module; every execution module comprises a clamping mechanism, a lifting mechanism and a horizontal moving mechanism; the clamping mechanisms are driven by the lifting mechanisms and the horizontal moving mechanisms to ascend, descend and horizontally move; every lifting mechanism comprises a lifting platform; the horizontal moving mechanisms are fixedly arranged on the lifting mechanisms; the clamping mechanisms are fixedly arranged on the horizontal moving mechanisms; every information collection module comprises a vibration displacement sensor, a vertical displacement sensor, a horizontal displacement sensor and a pressure sensor; every control module comprises an information collection card, a PC (Personal Computer) machine and a controller; the information collection cards are connected with the sensors; the PC machines are used for processing information of the information collection modules; the operation of the mechanisms is controlled by the controllers. According to the flexible clamp device for the weak rigidity workpieces, the size of clamping force and the position the clamping force taking effect on can be adjusted automatically, the integral deformation of the workpieces is reduced, and meanwhile the machining vibration of the workpieces is restrained and the milling stability of the workpieces is improved.

Description

technical field [0001] The invention belongs to the field of workpiece processing and clamping, and in particular relates to a weakly rigid workpiece flexible clamping device applied to flexible structure workpiece clamping. Background technique [0002] With the development of my country's aviation industry, the performance requirements of aircraft are getting higher and higher. In order to reduce the weight of aircraft and improve mechanical performance, more and more integral structural parts are used in aircraft parts. This type of complex surface parts has technical characteristics such as large size, complex profile, thin-walled parts, and low damage. Vibration and processing deformation are easily generated during processing, making it difficult to control the surface processing quality. For example, in the aviation industry, a large integral structural part is 10m long, 0.1m high, and 1.5-4mm thick. And the surface of parts that require high fatigue strength, etc., ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a flexible clamping device for weakly rigid workpieces, which can actively adjust the clamping device according to the vibration information of the workpiece detected by the cutting position. The magnitude of the clamping force and the position where the clamping force acts, while reducing the overall deformation of the workpiece, can well suppress the machining vibration of the workpiece, improve the milling stability of the workpiece, improve the dynamic machinability of the workpiece, and finally realize the machining surface of the workpiece quality improvement

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