Positioning device for clamping of arc-shaped wallboard

Abstract

The invention discloses a positioning device for clamping of an arc-shaped wallboard, and belongs to the field of clamps. The positioning device comprises a vacuum chuck and a negative pressure sub-system. The vacuum chuck is connected with the negative pressure sub-system through vacuum air guiding pipes, and a pressure sensor is further arranged on each vacuum air guiding pipe. A pressing plate is further arranged on the periphery of the vacuum chuck. According to the positioning device, flexibility of vacuum adsorption and positioning of a rigid tool are combined, along with processing of wallboard grids, the rigidity of the wallboard is weakened, and the fit rate of the wallboard and the tool is increased, so that the fit rate at the finishing stage is the highest, and machining precision is guaranteed. By means of the positioning device, the problems that through a single-point-contact supporting mode, a cutter is prone to shaking when a product is processed to be thinned, and consequently the processing size is out of tolerance and chatter marks exist on a processed surface can be effectively solved, and the positioning device has the advantages that part clamping is convenient, positioning is accurate, and cost is low.

Description

technical field [0001] The invention relates to a clamp, in particular to a clamping and positioning device for arc-shaped wall panels. Background technique [0002] Flexible assembly tooling technology is an important technology to reduce the cost of launch vehicle assembly, shorten the assembly preparation period, improve production efficiency, and speed up market response. Flexible tooling in the assembly process refers to an assembly tooling system that can be applied to the assembly of components or parts of different shapes and sizes, and ensures the accuracy of assembly. [0003] The principle of the existing simple multi-lattice vacuum suction cup type flexible assembly device is to generate an adsorption lattice that precisely matches the shape of the product, and can accurately and firmly hold the skin and wall panels. The clamps on the device are used to position the skin and wall panels to make the flexible form rigid, and the positioning fulcrums of the clamps ...

AI Technical Summary

Problems solved by technology

Although this device solves the problem of three-dimensional motion positioning accuracy of a simple multi-lattice vacuum suction cup flexible assembly device, it still has the problem of single-point positioning support, and the device has a complex structure and high cost. Although it can partially solve the problem of multi-curvature surfaces Processing and clamping of skin and wall panel parts, but the clamping device of single curvature surface skin and wall panel parts needs to be further improved

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