Self-centering clamp used for taper hole product

Abstract

The invention discloses a self-centering clamp used for a taper hole product. The self-centering clamp comprises a base. A mandrel is fixedly connected to the base. A taper sleeve is slidably arranged on the mandrel in a sleeving mode, and the taper sleeve is used for being inserted into a taper hole of the product to be machined so as to achieve radial positioning. The base is provided with an axial positioning face used for being in contact with the product to be machined. The self-centering clamp further comprises a detachable locking assembly, and the detachable locking assembly is used for pressing and fixing the product to be machined onto the axial positioning face so that the product to be machine can be prevented from moving in the axial direction of the mandrel. An elastic ejecting assembly is arranged between the base and the taper sleeve and used for making the taper sleeve and the taper hole be in contact fit tightly. The self-centering clamp has the advantages that the positioning accuracy is high, the stability and reliability are good, detachment is convenient, the product is not prone to being damaged, and the clamping efficiency is high. The self-centering clamp can adapt to products to be machined with different taper holes and clamping of different kinds of machining equipment (including lathing equipment, milling equipment, boring equipment, drilling equipment, rolling equipment, inserting equipment, grinding equipment and the like) by manufacturing multiple sets of bases and taper sleeves of different specifications.

Description

technical field [0001] The invention relates to the technical field of machining tooling, in particular to a self-centering fixture for tapered hole products. Background technique [0002] In the mechanical field, taper hole positioning is often used in the processing of more important parts, such as parts that require high machining accuracy and often require various machining (including turning, milling, boring, drilling, rolling, inserting, grinding, etc.). At present, parts are usually clamped by matching the taper mandrel with its taper hole, or by correcting the outer diameter and other benchmarks. The disadvantage of the former is that the taper mandrel and its taper hole are rigidly matched and need to be tapped tightly, which will cause the taper hole to be crushed and scratched, and the extrusion will be aggravated after being subjected to a large axial force during processing, which will cause the taper hole to be crushed and scratched. The damage is further aggr...

AI Technical Summary

Problems solved by technology

The disadvantage of the former is that the taper mandrel and its taper hole are rigidly matched and need to be tapped tightly, which will cause the taper hole to be crushed and scratched, and the extrusion will be aggravated after being subjected to a large axial force during processing, which will cause the taper hole to be crushed and scratched. The damage is further aggravated, and in addition, axial displacement will occur, which will affect the machining accuracy, and it is difficult to disassemble; the disadvantage of the latter is that the workpiece needs to be corrected for each clamping and positioning, which takes a long time, greatly reduces the processing efficiency, and corrects the error at the same time. directly reduces the machining accuracy

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