A high-precision flat-nose pliers and its transmission part trapezoidal thread processing technology

Abstract

The invention relates to the technical field of flat-nose pliers, in particular to a high-precision flat-nose pliers. Including the design of the multi-directional adjustable lock body device, the three clamping states of normal clamping, compensation clamping and flexible clamping can be realized by rotating the base. The normal clamping state is the same as the clamping process of the existing vise, and the compensation When clamping, you can control the fine-tuning key block to move left and right by rotating the adjustment key block, so as to achieve the effect of compensation clamping. When flexible clamping, it can be buffered by springs and rubber pads to protect the workpiece; trapezoidal thread processing is arranged in heat treatment. Finally, the assembly accuracy requirements of the slider can be guaranteed, the processing efficiency is greatly improved, and the scrap rate is also greatly improved. At the same time, the finishing allowance can be reasonably reduced according to the thermal deformation, thereby reducing the cost; adding empty tool grooves not only makes thread processing easier , and lubricating oil can be stored during use to lubricate between the trapezoidal thread and the screw.

Description

technical field [0001] The invention relates to the technical field of flat-nose pliers, in particular to a high-precision flat-nose pliers. Background technique [0002] The flat-nose pliers are mainly divided into one-way and two-way flat-nose pliers. When manufacturing the slide seat, it is necessary to form the lower part first, then carburize and quench, and finally finish. If the assembly accuracy is guaranteed, the large surface on the slide block must be guaranteed. And trapezoidal thread size L and shape and position tolerance requirements. However, in actual production, due to the influence of heat treatment deformation, if the slider is processed in one piece, it is difficult to ensure the assembly requirements, so the sliders need to be ground in pairs after heat treatment; because the thread is processed first and then heat treated, the thread accuracy of the slider is difficult to guarantee. Long-term wear This leads to a reduction in the service life of the w...

AI Technical Summary

Problems solved by technology

However, in actual production, due to the influence of heat treatment deformation, if the slider is processed in one piece, it is difficult to ensure the assembly requirements, so the sliders need to be ground in pairs after heat treatment; because the thread is processed first and then heat treated, the thread accuracy of the slider is difficult to guarantee. Long-term wear The service life of the whole pliers is reduced; this kind of process of heat treatment first and then grinding has large machining allowance, low efficiency, low slider precision, and large scrap loss, which seriously affects the benefit

[0003] The structure of the existing two-way vise is relatively simple, and the movable jaws on both sides are always symmetrical about the center. Sometimes, due to the error in the size of the clamped workpiece, after one side of the workpiece is clamped, the other side of the workpiece is in a loose state, and the double station cannot be achieved. clamping effect

[0004] When clamping fragile objects or deformable workpieces, it is necessary to put rubber pads or other materials with flexible cushioning in the clamping parts of the workpiece to protect the workpiece, which is time-consuming and labor-intensive during mass production and processing, and the work efficiency is low

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