Machining fixture locking device

Abstract

The invention discloses a machining fixture locking device. The machining fixture locking device comprises a base plate; two extension cylinders are symmetrically and fixedly mounted on the base plate; piston rods are arranged on the two extension cylinders, and are fixedly connected with tooth plates; buffer cavities are formed in the piston rods; piston blocks are slidingly connected into the buffer cavities; moving rods are fixedly connected to one sides of the piston blocks; the ends, far from the piston blocks, of the moving rods are fixedly connected with clamping plates; the other sidesof the piston blocks are fixedly connected with second springs; and the ends, far from the piston blocks, of the second springs are fixedly connected to the side walls of the buffer cavities. Tooth blocks adaptively slide up, and meanwhile, drive first springs to compress; and under the elastic effect of the first springs, the tooth blocks are engaged with the tooth plates again, and meanwhile, end surfaces B abut against the tooth plates to prevent retreating of the tooth plates, so that the locking effect on the piston rods is achieved, and the influence on the clamping effect of the pistonrods by instable air pressure of the extension cylinders is prevented.

Description

technical field [0001] The invention relates to the technical field of machining fixtures, in particular to a locking device for machining fixtures. Background technique [0002] At present, the production process of a machine refers to the entire process of making a product from raw materials (or semi-finished products). Heat treatment, product assembly, and commissioning, painting and packaging, etc. Machining is also a process of changing the shape or performance of workpieces with processing machinery. According to the temperature state of the processed workpieces, mechanical processing is divided into cold processing and thermal processing. Traditional machining generally includes: laser cutting, heavy machining, metal bonding, metal drawing, plasma cutting, precision welding, roll forming, sheet metal bending, die forging, water jet cutting, precision welding, etc. Processing is the process of manufacturing products by mechanical means; in a narrow sense, machining i...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the drawbacks in the prior art that "the air pressure of the cylinder is unstable during the clamping process, which makes the workpiece easy to cause the clamping block to retreat during the clamping process, making the clamping not stable enough and affecting the processing of the product." Quality” defects, thus proposing a machining fixture locking device

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