Detecting method for displacement of hydraulic counter-blow hammer heads

Abstract

The invention discloses a detecting method for displacement of hydraulic counter-blow hammer heads. Groove scales are carved on the lateral sides of the hydraulic counter-blow hammer heads vertically, detection sensors fixed on a support and opposite to the groove scales are used for sensing moving of grooves of the hammer heads, and when the grooves enter eddy current displacement sensor sensing areas, the detection sensors output a voltage signal changing continuously along with the displacement. The displacement in a blowing process of the hammer heads is determined through calculation by using the voltage signal detected and output in real time. The detection sensors are installed on the counter-blow hammer support, by machining the groove scales on the upper hammer head and the lower hammer head, the detection sensors or sensing devices are prevented from being installed on the hammer heads directly, and loosening and falling of the detection sensors or sensing devices due to violent vibration are avoided. By using the characteristic that an eddy current displacement sensor is fast in responding and by using online data processing, the displacement of the counter-blow hammer heads can be detected in the real time.

Description

technical field [0001] The patent relates to a new method for detecting the displacement of a hydraulic counter-hammer head, which belongs to the field of hydraulic counter-hammer detection in metal forming equipment. Background technique [0002] The rapid development of modern industry, especially in automobile, engineering, mining and other industries, requires more and more high-precision and high-quality die forgings. Die forgings have high productivity, high material utilization, and stable dimensions, especially for precision forgings. Due to the high precision after forging, cutting workload can be reduced or even eliminated, which is conducive to improving the mechanical properties of materials and reducing the cost of forgings. The proportion of die forgings to forgings represents the level of a country's forging industry. [0003] The displacement of the hammer head when the hydraulic pressure strikes the hammer is directly related to the forming size of the forg...

AI Technical Summary

Problems solved by technology

However, during work, due to the high temperature of the forging, the vibration of the hammer head is severe when it strikes, and the site environment is very harsh. It is difficult for conventional sensors to detect the displacement of the hammer head accurately and in real time.

And the sensor directly installed on the hammer head is easy to loosen and fall off during the striking process

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