Auxiliary supporting mechanism for tool

Abstract

The invention aims to solve the defects of the prior art, and provides an auxiliary supporting mechanism for a tool, which not only can apply extremely small support jacking force on workpieces but also can realize extremely large support force. In order to realize the technical effect, the auxiliary supporting mechanism for the tool comprises a base, wherein a support movable column which is used as a support part is arranged on the base, a through slot is formed on the support movable column, the opening of the through slot is rectangular, the bottom of the trough slot is a slope, the bottom of the support movable column is connected with a locking inclined block, a reset spring is fixed on the bottom of the locking inclined block, a backward piston and a locking piston which are connected with an oil cylinder are also assembled in the base, and the locking inclined block is matched with the locking piston. Compared with the prior art, the auxiliary supporting mechanism has the advantages that the piston is contacted with a fixed part through an inclined surface, the conventional cylindrical surface contact technical mode of the prior art is changed, the contact area is increased, so that the friction force during the connection is increased, and the fixation is firmer.

Description

technical field [0001] The invention relates to a tool, in particular to a pressure-resistant tool auxiliary support mechanism. Background technique [0002] In the design of mechanical parts processing tooling fixtures, an auxiliary support mechanism is often required, and its support points are required not to have too much jacking force on the workpiece, so as to prevent the workpiece from being clamped and deformed due to excessive jacking force at the support point. For example, the invention patent "Manual Auxiliary Support Mechanism" with the publication number CN102672507A in the prior art discloses a manual auxiliary support mechanism, including: a support 18, which is fixedly installed on the clamp body 20, and inside the support there are up and down Through cavity; guide sleeve 15, fixedly installed in the cavity of the support, guide sleeve has a central through hole; push rod 21, has a rod body and a rod end, and the rod body is slidably installed in the centra...

AI Technical Summary

Problems solved by technology

However, the application scope of this patent is relatively small, and the supporting force required is relatively large, especially for thin-walled parts milling or machining taper holes, it is still manpower or using a support cylinder as an auxiliary support mechanism, but even if it is replaced with a support cylinder, it often requires The system pressure is relatively high, generally greater than or equal to 15MPa, and its support force is not very ideal, often less than 200 kg force

The main reason is that the piston is a cylinder. When it is subjected to excessive force, it will rotate, so that the direction of the force will change, resulting in uneven force and fracture of the fixed piston.

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