Clamps for shaft and face clamping of thin-walled parts

Abstract

The invention discloses a clamp. The clamp comprises an auxiliary supporting assembly, an installation base, a shaft fixing assembly used for clamping a shaft of a thin-wall part and an end face fixing assembly used for clamping end faces of the thin-wall part; the shaft fixing assembly comprises three pressing parts, an oil cylinder pull rod, an annular pull plate and a pull rod sleeve; the end face fixing assembly comprises a sleeve, a pre-pressing spring and an end face pressing plate; the auxiliary supporting assembly comprises an annular end cover, a plurality of end face supporting bodies and a plurality of damping springs; and when the oil cylinder pull rod moves, the pressing parts can be driven to get close to or get away from the oil cylinder pull rod in the third direction so that the shaft of the thin-wall part can be clamped and loosened, and the end face pressing plate can be driven to get close to or get away from the supporting bodies in the first direction so that an inner end face of the thin-wall part can be clamped and loosened. The clamp has the beneficial effects that fast self-centering clamping can be realized, the concentricity is improved, and the planar run-out degree is lowered.

Description

technical field [0001] The invention belongs to the technical field of object clamping, and in particular relates to a clamp suitable for clamping shafts and end faces of thin-walled parts. Background technique [0002] Such as figure 1 and 2 As shown, the thin-walled part has a shaft, an inner end face close to the shaft and an edge end face away from the shaft; the inner end face and the edge end face are both perpendicular to the central axis of the shaft, and the blank of the thin-walled part has a certain hardness 1. The large deformation of the blank shape leads to large cutting allowance, high chip cutting and high requirements. When processing such parts with traditional fixtures, it leads to poor concentricity and large plane runout, which makes it difficult to ensure the accuracy of the blank size. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a clamp suitable for clamping t...

AI Technical Summary

Problems solved by technology

[0002] like figure 1 and 2 As shown, the thin-walled part has a shaft, an inner end face close to the shaft and an edge end face away from the shaft; the inner end face and the edge end face are both perpendicular to the central axis of the shaft, and the blank of the thin-walled part has a certain hardness , Large blank shape deformation leads to large cutting allowance, chip breaking cutting and high requirements. When processing such parts with traditional fixtures, it leads to poor concentricity and large plane runout, which makes it difficult to ensure the accuracy of blank size.

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