Clamps for shaft and face clamping of thin-walled parts

A technology for thin-walled parts and end faces, which is applied in the field of fixtures for clamping shafts and end faces of thin-walled parts. It can solve the problems of large cutting allowance, high requirements for chip breaking and large plane runout, and reduce plane runout. , improve the concentricity, and the effect of fast self-centering clamping

CN106181512BActive Publication Date: 2018-04-06NANJING CHERVON AUTOMOBILE PRECISION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-04-06

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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.
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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...

Examples

Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0027] Such as Figures 3 to 7 As shown, the fixture of the present invention includes an auxiliary support assembly 40 and a mounting seat 10; it also includes a shaft fixing assembly 20 for clamping the shaft 2001 of the thin-walled part 200 and an end face fixing for clamping the inner end surface 2002 of the thin-walled part 200 Assembly 30; the shaft fixing assembly 20 includes: three pressing parts 201, cylinder pull rods 202, annular pull plates 203, and pull rod sleeves 204; the mounting base 10 is provided with a shaft sleeve 101 and a slideway 10a extending along the second direction; The cylinder pull rod 202 and the shaft sleeve 101 form a sliding connection along the first directio...