Soft claw assembly with replaceable soft claw seat

Abstract

The invention provides a soft claw assembly with a replaceable soft claw seat, which comprises a chuck, a soft claw seat, a soft claw, a screw and a nut; the rear end of the soft claw seat is matchedwith the chuck, and the front end of the soft claw seat abuts against the soft claw; a conical hole is formed on the soft claw seat; a frustum matched with the conical hole is arranged in the middle of the screw; threads are arranged at the rear end and the front end of the screw respectively; the front end of the screw is in threaded connection with the soft claw; and the middle frustum is embedded in the conical hole of the soft claw seat and the front end is connected with the nut. According to the soft claw assembly with the replaceable soft claw seat provided by the invention, the soft claw seat and the soft claw are positioned through the screw with the frustum and the conical hole matched with the nut, the soft claw can be repeatedly disassembled, and due to the fact that the repeated positioning precision is high, when a machined product is replaced, only the soft claws of the corresponding specifications need to be replaced without disassembling the soft claw seat or machininga soft claw positioning face again, and the soft claw can be reused.

Description

technical field [0001] The invention belongs to the technical field of soft claw devices, and in particular relates to a soft claw assembly with a replaceable soft claw seat, in particular, it is suitable for the clamping of finished surface parts. Background technique [0002] Three-jaw chuck is a common accessory of lathes. It has the advantages of self-centering function, convenient use and high reliability. Therefore, it is widely used as a clamping tool in the field of machining. Most of the standard clamping jaws are hard jaws (that is, three-point contact with the part). In order to improve the positioning accuracy of the repeated clamping of the part and prevent the clamping surface of the part from being pinched during clamping, most of them are modified with hard jaws during finishing. Self-made soft claws (that is, the way of contacting the surface of the part) clamp the part. [0003] Self-made soft claws are usually connected by welding standard hard claws and ...

AI Technical Summary

Problems solved by technology

[0004] 1. Repeated installation and poor positioning accuracy:

[0005] Since the soft claw seats are all self-made, there are machining accuracy errors on the positioning surface during processing, resulting in installation accuracy errors during repeated installations;

[0006] 2. Difficulty in installation:

[0007] The soft claw seat adopts the straight groove positioning method, and the positioning surface is not easy to align with the positioning surface on the movable jaw base on the chuck body during installation, resulting in difficulty in installation; if the installation method is improper, the positioning surface of the soft claw seat will also be damaged. Abnormal wear and tear causes the gap between the positioning surfaces to increase, which affects the clamping accuracy of the parts; especially the large and medium-sized soft jaws are large in size and heavy in weight, and it takes time and effort to disassemble and install;

[0008] 3. Large capital investment:

Therefore, all existing soft claws are consumables;

[0010] To sum up, the ring parts with high processing precision in mechanical processing are generally clamped with soft jaws modified from traditional three-jaw chucks (which completely surround the processed parts). The soft jaws and soft jaw seats of this method are welded Connection, due to poor repeated positioning accuracy when the traditional soft claw seat is repeatedly installed, the positioning surface of the soft claw needs to be reprocessed every time the soft claw is replaced, resulting in the soft claw becoming a consumable

At the same time, the large soft claw seat is heavy, and it is extremely inconvenient for workers to replace it.

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