Machining process of high-precision flat tongs and drive part trapezoidal thread thereof

Abstract

The invention relates to the technical field of flat tongs, in particular to a machining process of high-precision flat tongs and a drive part trapezoidal thread thereof. The design of a multidirectional adjustable lock body device is included, normal clamping, compensation clamping and flexible clamping can be achieved by rotating a square base, a normal clamping state and an existing flat tongsclamping process are same, an adjusting key block can be rotated to control a fine-adjusting lock block to move left and right during compensation clamping, the effect of clamping compensation can beachieved, the effect of workpiece protection can be achieved through buffering of a spring and a rubber pad during flexible clamping, trapezoidal thread machining is arranged after heat treatment, sothat the requirement for assembling precision of a sliding block can be guaranteed, the machining efficiency is greatly improved, the rejection rate is greatly lowered, meanwhile, the fine machining allowance can be reasonably reduced according to the thermal deformation condition, so that the cost is reduced, a clearance groove is added, so that thread machining is easy, and lubricating oil can be stored in a using process, so that the lubricating effect between a trapezoidal thread and a screw rod is achieved.

Description

technical field [0001] The invention relates to the technical field of flat-nose pliers, in particular to a high-precision flat-nose pliers and a trapezoidal thread processing technology for transmission parts thereof. 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 gua...

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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