Superplastic forming and demolding device for three-direction negative-angle complex space curved surface workpiece
A kind of demoulding device, superplastic technology, applied in the field of machining
Active Publication Date: 2020-07-10
CHINA FIRST AUTOMOBILE
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[0003] The purpose of the present invention is to provide a superplastic forming and demoulding device for complex space curved parts with negative angles in three directions, which can not only realize the simultaneous forming of negative angles in three directions, but also solve the problem of smooth demoulding of the parts, and achieve a Realize three-direction negative angle forming in the tooling and complete the demoulding of the part at the same time
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[0026] The technical solutions of the present invention will be further explained and illustrated in the form of specific embodiments in conjunction with the accompanying drawings.
[0027] In this embodiment, a device for superplastic forming and demoulding of complex space curved surface parts with negative angles in three directions. Such as figure 1 As shown, it is composed of lower mold frame 1, lower mold base, mandrel and pull plate 11;
[0028] The center of the lower mold frame 1 has a cavity, and the bottom of the cavity is provided with a lower mold base, and the edge of the lower mold base is provided with a number of guide rails, which cooperate with the guide grooves on the edge of the cavity of the lower mold frame 1; Hole, pull plate 11 is installed below the lower mold base, and can drive the lower mold base to move up and down in the through hole;
[0029] The lower mold base is used in the superplastic forming process, and its main function is to make the ...
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The invention discloses a superplastic forming and demolding device for a three-direction negative-angle complex space curved surface workpiece, and belongs to the technical field of machining. The purpose is to provide the superplastic forming and demolding device for the three-direction negative angle complex space curved surface workpiece, three-direction negative-angle simultaneous forming isachieved, the problem of smooth demolding of the workpiece can be solved, and three-direction negative-angle forming is achieved in one tool while workpiece demolding is completed. The superplastic forming and demolding device is composed of a lower mold frame, a lower mold base, a core mold and a pulling plate; the lower mold base carries out division according to a negative angle of the bottom area of a product and used for the superplastic forming process, the core mold is used for the cold stamping process and carries out division according to the negative angle of the product, the lower mold base and the core mold complete simultaneous demolding of the workpiece and the core mold through the arrangement of a mold drawing oblique angle, and three-direction negative-angle fancy mold drawing is achieved.
Description
technical field [0001] The invention belongs to the technical field of machining. Background technique [0002] Existing superplastic forming molds can realize negative angle forming in one direction and part demoulding. If the part has negative angles in two directions or more, it is necessary to increase the process and the number of tooling to realize the negative angle area forming and the part Demoulding, it is impossible to complete multi-directional negative angle forming and part demoulding in the same set of tooling. Therefore, it is a technical problem that needs to be solved at present to realize multi-directional negative angle forming and part demoulding in the same tooling. Contents of the invention [0003] The purpose of the present invention is to provide a superplastic forming and demoulding device for complex space curved parts with negative angles in three directions, which can not only realize the simultaneous forming of negative angles in three direc...
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IPC IPC(8): B21D37/10B21D45/08
CPCB21D37/10B21D45/08
Inventor 张正杰夏昌兴徐伟闫彦李航李莹娜薛洪涛白昱璟李文彬孙立亚
Owner CHINA FIRST AUTOMOBILE