Gripping device for sheet elements, related systems and methods

By designing a gripping device suitable for sheet elements, and using a rod and a reset mechanism to bend the sheet elements, the problem of gripping and placing sheet elements in the prior art is solved, achieving precise positioning and avoiding resin contact.

CN122206536APending Publication Date: 2026-06-12FAIRMAT
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Patent Information

Application Number
CN202480073193.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-11-22
Filing Date
2024-11-20
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing technologies are difficult to effectively grip and place sheet components, especially carbon fiber-containing chips, and are prone to pulling up multiple components when lifting components at the top of the stack. Furthermore, the suction cup device may malfunction due to contact with liquid resin.

Method used

A gripping device is designed, including a support and a gripping mechanism. A movable rod and a reset mechanism are used to bend the sheet element, which contacts the sheet element through a suction cup or adhesive part. The bending action of the rod ensures that only one element is gripped, avoiding contact with the resin.

Benefits of technology

It achieves precise positioning and placement of thin-film components, avoiding malfunctions caused by simultaneous gripping of multiple components and contact between the suction cup and resin, and is adaptable to thin-film components with different mechanical properties.

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Abstract

The invention relates to a gripping device suitable for lifting sheet elements. The device comprises a gripping mechanism (4) fixed on the support (2), said gripping mechanism (4) comprising an attachment (5) capable of being in contact with the sheet element (6) and capable of being adhered to the surface of the sheet element. The device comprises at least two rods (7) having free ends movable in a longitudinal direction (L). The device further comprises a reset mechanism (9) adapted to bring the free end of each rod to a plane further away from the reference surface (201) of the support (2) than the longitudinal end of the attachment (5) in the longitudinal direction (L). The invention also relates to a system comprising such a device in combination with a robot, and to a method for manufacturing a composite workpiece using such a system.
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