Stretching machine jaw anti-skid structure and stretching process

Abstract

The invention discloses a double-sided gear block, a stretcher jaw antiskid structure with the double-sided gear block and a stretching process. The upper face and the lower face of the double-sided gear block are both milled gear surfaces. The stretcher jaw antiskid structure comprises an upper jaw, a lower jaw, a cushion block and the double-sided gear block; and when a workpiece product is stretched, the double-sided gear block is located between the workpiece product and the cushion block, and the upper jaw and the lower jaw apply pretightening force on an overlapped structure formed by the workpiece product, the double-sided gear block and the cushion block. When the stretcher conducts the stretching process, extremely large friction force can be formed among contact faces, and skidding is prevented. Skid resistance of the cushion block and the workpiece product can be achieved through the double-sided gear block, the stretcher jaw antiskid structure with the double-sided gear block and the stretching process, the slippage problem caused by additional arrangement of the cushion block can be solved fundamentally, and the design goals of practicability, easy use, reliability and safety are achieved.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to an anti-slip structure of a jaw of a stretching machine provided with a double-sided tooth block, and a stretching process using the anti-slip structure of a jaw of a stretching machine. Background technique [0002] The jaw of the 1500-ton stretching machine is the most important tool in the stretching process. Its reasonable and effective use has a decisive impact on the product's external dimensions and residual stress relief. [0003] In the prior art, due to the complex structure of extruded products, the same set of jaws of the stretching machine must simultaneously meet the stretching and straightening of pipes, rods, profiles, and row materials of different specifications. When stretching products with smaller specifications, often It is necessary to add aluminum alloy pads to meet the requirements of the opening (the gap between the two rollers), which will...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, due to the complex structure of extruded products, the same set of jaws of the stretching machine must simultaneously meet the stretching and straightening of pipes, rods, profiles, and row materials of different specifications. When stretching products with smaller specifications, often It is necessary to add aluminum alloy pads to meet the requirements of the opening (the gap between the two rollers), which will easily lead to slippage during stretching, resulting in hidden quality problems and damage to equipment, and the need for maintenance or repurchase of equipment will undoubtedly increase. Cost of production

Slipping will also cause the tooth surface to stick to metal, resulting in a vicious circle of continuous slipping

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