Processing and detection method for improving floating sleeve inner hole oil wedge detection efficiency

Abstract

The invention discloses a processing and detection method for improving floating sleeve inner hole oil wedge detection efficiency, an inner hole is a base circle, a plurality of oil wedges are uniformly distributed, and an included angle between nodes at two ends of a single oil wedge is [alpha], and the method comprises the following steps: determining an angle range beta between the oil wedge and the arc lift of the base circle within 0.001 mm according to different specifications of oil wedge lifts, and recording a width size L; aligning a base circle and a part plane of the unmachined floating sleeve, controlling the reference precision and end face bounce of the inner hole, clamping the floating sleeve, machining the floating disc inner hole oil wedge according to a set numerical control machining program, and ensuring that the width L value of the base circle of the inner hole is the same as a theoretical value after the floating disc inner hole oil wedge is actually machined; and placing a V-shaped equal-height block used for detection on a plane, then tightly attaching the end face of the floating sleeve, fixing the dial indicator on the plane, enabling a pointer of the dial indicator to extend into an oil wedge in an inner hole of the floating sleeve, and therefore, lift detection of the oil wedge of the floating sleeve can be achieved by slowly rotating the floating sleeve at a constant speed while the pointer is tightly attached to the end face of the floating sleeve.

Description

technical field [0001] The invention relates to the field of metal bearing high-precision oil wedge machining, in particular to a processing and detection method for improving the detection efficiency of the oil wedge in the inner hole of a floating sleeve. Background technique [0002] With the high-quality development of the industry, customers have increasingly strict requirements on the processing quality of precision parts. As the key parts of supercharger products, the processing quality of floating sleeve high-precision precision parts is the focus of attention. In this Among the various structures of such parts, the processing difficulty of the inner hole oil wedge is the most prominent, and the specific performance is as follows: [0003] 1. High precision [0004] The detection accuracy of the oil wedge lift in the inner hole of the part reaches 0.01mm, such as figure 1 shown. [0005] The lift accuracy of the oil wedge is difficult to guarantee due to factors s...

AI Technical Summary

Problems solved by technology

[0005] The lift accuracy of the oil wedge is difficult to guarantee due to factors such as the repeated alignment error of the reference axis center, machine tool accuracy, and tool runout during the machining process, and the yield rate in traditional milling is low.

[0006] 2. Difficulty in processing and testing

[0011] The third stage: The lift of the oil wedge continues to increase until it exceeds the tolerance, and the intersection point already exists at this time. At this time, the intersection point is the intersection line of the adjacent oil wedge arc surfaces vertically in the inner hole. In this state, the arc of the base circle is in the part The body of the inner hole has been completely removed, and the reference point of the base circle on the body is lost during detection, so the lift of the oil wedge cannot be detected

Images