Cold extrusion forming method of accelerator steel cable with ball heads at two ends

Abstract

The invention relates to a cold extrusion forming method of an accelerator steel cable with ball heads at two ends. The method comprises the following steps: 1, mounting a cold extrusion forming die on a punch press workbench, connecting a die shank of the die with a punch of a punch press, and putting the ball heads on a lower die body of the die; 2, starting the punch press, driving an upper diebody of the die to move downwards by the die shank, and performing cold extrusion on the ball heads; and 3, connecting the ball heads subjected to cold extrusion into a tension detection device for tension detection. By means of the method, high-strength pressing of the ball heads and a steel wire rope can be guaranteed, and the precision requirement of the diameter of the pressed ball heads is met; and in the tension detection step, high-quality and high-efficiency detection of the parts with different lengths and different tension values can be realized.

Description

technical field [0001] The invention belongs to the technical field of aero-engines, and in particular relates to a cold extrusion forming method of a throttle cable with ball ends at both ends. Background technique [0002] The throttle cable with both ends of the ball is made of a wire rope covered with a fluorine plastic tube and the joint is buckled and connected. The schematic diagram of the throttle cable with a ball at both ends is as follows figure 1 As shown, it is widely used in the operating system, mainly through the instantaneous force transmission to drive the corresponding action of the parts to realize its predetermined function. As an important force-bearing part in the operating system, the compression strength of the cable end is the key performance of the entire part of the cable, and its strength directly affects the normal operation of the equipment and even its performance and safety. [0003] In the past, the steel cable ball head mainly used the com...

AI Technical Summary

Problems solved by technology

[0003] In the past, the steel cable ball head mainly used the compression structure of the two-way upper and lower hemispherical round molds. Due to insufficient plastic deformation of the ball head, thick and large flashes were generated on the parting surface, and the diameter accuracy of the ball head after compression was poorly controlled; at the same time, the plasticity Insufficient deformation leads to insufficient bonding between the ball head hole and the wire rope, low strength and low pass rate; and the current method is very difficult for a ball head with a small diameter of 5.8mm

[0004] The strength of the ball head after compression is the key performance requirement of the part. 100% tension testing is carried out on the ball head to ensure the service performance and reliability of the part. In the past, the two ends were clamped and the tension of heavy objects was applied. It has poor adaptability to parts with different lengths and different tension values, and has the defects of low detection efficiency and difficulty in applying heavy objects, and there are tension adjustments that can only be adjusted by replacing heavy objects, and heavy objects are suspended and dropped, etc. Danger

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