Multi-point symmetric vibration progressive composite and precise forming system for metal plate

Abstract

The invention discloses a multi-point symmetric vibration progressive composite and precise forming system for a metal plate. The main shaft of the multi-point symmetric vibration progressive composite and precise forming system for the metal plate is vertically installed on a rack; a tool head bracket is hinged to a mounting plate on the lower end of the main shaft; a motor for driving a lead screw is fixedly arranged on the bottom of the mounting plate; a bracket expansion device is installed on the symmetric center position of the tool head bracket; one end of a connecting rod on the bracket expansion device is hinged to a nut on the center position; the other end of the connecting rod is hinged to the middle of the tool head bracket; a tool head is fixedly arranged on the tail end of the bracket; a lower die is installed under the tool head bracket; and a vibration exciter is connected with the position under the lower die. The multi-point symmetric vibration progressive composite and precise forming system for the metal plate has the beneficial effects that a plurality of forming tool heads with the symmetric distribution structure are adopted to rotate and carry out radial expanding and forming movement, so that the movement precision of the tool heads can be more effectively controlled, the forming error is reduced, the stressed state of the plate in the forming process is improved, the stress strain in the plate is homogenized, and the metal plate material can be subjected to efficient progressive composite and precise forming.

Description

technical field [0001] The invention relates to a multi-point symmetrical vibration progressive compound precision forming system for metal plates. Background technique [0002] The single-point progressive forming of metal sheet is to use the idea of ​​layered manufacturing to replace the surface of the mold with the envelope surface formed by the movement of the tool head, to carry out partial deformation of the sheet successively, and finally to process the sheet into the required shape of the workpiece . [0003] The single-point incremental forming process has the following process defects. First, during the forming process of the plate, the force in the forming plane is uneven, and it is prone to instability, resulting in accumulation, wrinkling, cracking and other defects. The 2nd, processing speed is slow, and production efficiency is low. The third is that a single tool head cannot effectively finish the same forming layer during the forming process, resulting in ...

AI Technical Summary

Problems solved by technology

[0003] The single-point incremental forming process has the following process defects. First, during the forming process of the plate, the force in the forming plane is uneven, and it is prone to instability, resulting in defects such as accumulation, wrinkling, and cracking.

Second, the processing speed is slow and the production efficiency is low

The third is that a single tool head cannot effectively finish the same forming layer during the forming process, resulting in poor forming surface quality

Fourth, due to the uneven strain in the forming plane, the springback cannot be controlled, the thickness in the forming area is uneven, and the size error and shape error of the formed part are relatively large

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