Flexible multipoint tool set for positioning and supporting thin-walled curved surface parts

Abstract

The invention discloses a flexible multipoint tool set for positioning and supporting thin-walled curved surface parts, which comprises an operating platform and at least three supporting / fixing units, wherein the supporting / fixing units are all arranged on the operating platform, and each supporting / fixing unit comprises a spherical hinge side draught vacuum chuck, a first hoisting assembly and a fixed base, the spherical hinge side draught vacuum chuck is arranged at the upper part of the first hoisting assembly, and the lower part of the first hoisting assembly is arranged on the fixed base; the fixed base of each supporting / fixing unit is provided with a first electromagnet, and the first electromagnet is in magnetic suction with the upper surface of the operating platform; and the operating platform is also provided with at least two positioning units, each positioning unit comprises a positioning pin, a second hoisting assembly and a positioning base, the positioning pin is arranged at the upper end part of the second hoisting assembly, the lower end part of the second hoisting assembly is arranged on the positioning base, and the positioning base is connected with the operating platform. The flexible multipoint tool set disclosed by the invention not only can accurately position thin-walled curved surface parts, but also can conveniently move above the operating platform and adjust the distance between every two supporting / fixing units.

Description

technical field [0001] The invention relates to a multi-point flexible tooling for thin-walled curved parts, mainly for trimming, drilling, measuring and other operations after the thin-walled curved parts are formed, belongs to the field of mechanical engineering, and specifically relates to aviation, aerospace, automobiles, etc. Aspects of flexible manufacturing equipment. Background technique [0002] In aviation, aerospace, automobile and other products, there are a large number of thin-walled parts with poor stiffness and complex curved surface shape. Traditional thin-walled parts are trimmed, drilled, and measured using special tooling. The surface of the tooling has the same With the consistent curved surface shape of thin-walled parts, each set of tooling can only be applied to one kind of thin-walled parts. Under the growing demand for small batches and multiple varieties in various industries, the cost is too high to meet the actual production needs. [0003] Alth...

AI Technical Summary

Problems solved by technology

[0002] In aviation, aerospace, automobile and other products, there are a large number of thin-walled parts with poor stiffness and complex curved surface shape. Traditional thin-walled parts are trimmed, drilled, and measured using special tooling. The surface of the tooling has the same Consistent curved surface shape of thin-walled parts, each set of tooling can only be applied to one kind of thin-walled parts, under the growing demand for small batches and multiple varieties in various industries, the cost is too high to meet the actual production needs

[0003] Although some existing tooling can realize the positioning support of thin-walled curved surface parts through manual adjustment according to the shape, size and process requirements of the part, the manual operation has low efficiency and poor precision, and it is difficult to meet the high-efficiency requirements of thin-walled curved surface parts production. And most of its supporting and fixing units are connected by being fixed on the T-shaped groove of the workbench, so that the distance of the supporting and fixing unit in certain directions of the workbench is a fixed value and cannot be adjusted; as disclosed in the document of Chinese Patent No. "200810056655.5" The Y-direction distance of the nail height adjustment unit is determined by the length of the positioning plate, and the X-direction distance is determined by the distance of the positioning hole on the foundation pillow. Both directions cannot be adjusted arbitrarily

[0004] At present, the fully automatic flexible tooling based on measurement, control, machinery and other disciplines developed at home and abroad uses a servo motor combined with a ball screw to adjust the distance between the supporting and fixing units. The structure is complex, the design and manufacture are difficult, and the cost is high. It hinders its wide application in enterprises. In the face of the above problems, it is necessary to study the multi-point flexible tooling for thin-walled curved surface parts that are suitable for the needs of enterprises.

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