Clamping structure of thin-walled piece, clamping method of thin-walled piece and application of clamping structure of thin-walled piece

Abstract

The invention provides a clamping structure of a thin-walled piece. The clamping structure is provided with a base platform and a cover plate. The base platform comprises a base and a boss protrudingupwards from the center of the base. The boss is fixed to the cover plate through a fixing device penetrating through the cover plate to extend into the boss. Clamping of the thin-walled piece is achieved in a vertical clamping manner, the thin-walled piece cannot vibrate in the machining process, and therefore the flatness of the machined thin-walled piece can be guaranteed. By the adoption of the clamping method of the clamping structure of the thin-walled piece, the thin-walled piece is arranged between the boss and the cover plate, rapid clamping can be achieved, the thin-walled piece canbe effectively prevented from twisting and deforming in the machining process, and machining requirements of semiconductor parts can be better met.

Description

technical field [0001] The invention relates to the technical field of parts processing, in particular to a clamping structure of a thin-walled part, a clamping method and application of the thin-walled part. Background technique [0002] Thin-walled parts: Because of the characteristics of light weight, material saving, and compact structure, thin-walled parts have been increasingly widely used in various industrial sectors. However, the processing of thin-walled parts is more difficult, because the thin-walled parts have poor rigidity and weak strength, and are easily deformed during processing, which makes it difficult to guarantee the processing quality of the parts. There are many factors that affect the machining accuracy of thin-walled parts, but they can be summarized in the following three aspects: (1) Forced deformation; (2) Thermal deformation; (3) Vibration deformation. [0003] CN106216724A discloses a fast turning fixture for thin-walled parts with stepped sof...

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Problems solved by technology

[0003] CN106216724A discloses a fast turning fixture for thin-walled parts with stepped soft claws, which alleviates the problem of insufficient clamping force of the original fixture to a certain extent, but the fixture still clamps thin-walled parts from all sides method, it is easy to cause deformation of thin-walled parts during processing

[0004] CN103447851A discloses an anti-deformation fixture for lathe processing of annular thin-walled parts. The fixture uses the circumference of the fixture body to make the inner peripheral surface of the thin-walled part to realize the clamping of the thin-walled part. However, this method is only applicable to round Thin-walled parts with shaped structure, and the clamping area is small, the workpiece is still prone to vibration and deformation during processing

[0005] CN109333092A discloses a fixture for annular thin-walled parts. The fixture uses three pressing blocks to clamp the annular thin-walled parts. Uneven, prone to deformation during processing

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