Valve sleeve inner conical surface taper angle deviation precision design and grinding amount detection method

Abstract

The invention discloses a valve sleeve inner conical surface taper angle deviation precision design and grinding amount detection method. Firstly, factors influencing the taper angle precision of theinner conical surface of the valve sleeve are determined by analyzing the assembly relation and the operation mode of a valve element structure of the valve sleeve, then a taper angle deviation modelof the inner conical surface of the valve sleeve is established with the theoretical design bus of the inner conical surface of the valve sleeve as the center position, a theoretical basis is providedfor deviation precision design, and then a theoretical limit value of vertical deviation is obtained; then the verified valve sleeve inner conical surface taper angle deviation model is used for designing a valve sleeve inner conical surface taper angle, a grinding amount detection device is used for detecting the grinding amount of the valve sleeve inner conical surface in the production process, the grinding amount of the inner conical surface can be rapidly and efficiently detected, and the angle deviation and the axial grinding amount are effectively controlled; and due to the soft interference floating support scheme, the detection precision is further improved, meanwhile, correction can be conducted through a standard part or a three-coordinate measuring instrument, and then measurement errors are eliminated.

Description

technical field [0001] The invention relates to the technical field of design and detection of cone angle deviation of the inner cone surface of a valve sleeve, in particular to a precision design and grinding amount detection method of the cone angle deviation of the inner cone surface of a valve sleeve. Background technique [0002] Among screw-in cartridge hydraulic valves, pressure control valves are divided into slide valves, ball valves and cone valves. Due to the advantages of large flow rate, small leakage, and good static and dynamic characteristics, cone valves are widely used in relief valves. The cone valve is divided into the outer cone surface of the valve core and the inner cone surface of the valve sleeve. At present, it is difficult to design and detect the accuracy of the inner cone surface of the valve sleeve. Given, there is a lack of theoretical basis combined with the actual process; in the manufacturing process of the inner cone surface of the valve sl...

AI Technical Summary

Problems solved by technology

The cone valve is divided into the outer cone surface of the valve core and the inner cone surface of the valve sleeve. At present, it is difficult to design and detect the accuracy of the inner cone surface of the valve sleeve. Given, there is a lack of theoretical basis combined with the actual process; in the manufacturing process of the inner cone surface of the valve sleeve, the grinding of the inner cone surface of the valve sleeve is mainly done by the operator to judge the feed rate based on his own feeling, and the accurate grinding is not carried out. Quantity detection and control, the technical requirements on the drawings generally calibrate the internal cone surface grinding to see the light, but the grinding of the internal cone surface cannot be directly seen, which has a large randomness in the control of the feed rate and the degree of light exposure of the conventional internal cylindrical grinding Therefore, on the premise of improving the product precision as much as possible and effectively controlling the design precision, setting reasonable precision requirements and giving the detection and control of the specific grinding amount seems to be a problem. especially important

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