A processing and detection method for improving the detection efficiency of the oil wedge in the inner hole of the floating sleeve

Abstract

The invention discloses a processing and detection method for improving the detection efficiency of an oil wedge in the inner hole of a floating sleeve. The inner hole is a base circle, and a plurality of oil wedges are evenly distributed, and the angle between the nodes at both ends of a single fan oil wedge is α, comprising the following steps : According to the different specifications of the oil wedge lift, determine the angle range β between the oil wedge and the base circle arc lift within 0.001mm, and record the width dimension L; find out the base circle and part plane of the unprocessed floating sleeve, and control the inner hole Base accuracy and end face runout, clamp the floating sleeve, process the oil wedge in the inner hole of the floating disc according to the set NC machining program, and ensure that the width L of the base circle of the inner hole after the actual machining of the oil wedge in the inner hole of the floating disc is the same as the theoretical The value is the same; place the V-shaped contour block used for testing on the plane, then close the end face of the floating sleeve, fix the dial indicator on the plane, and extend the needle into the oil wedge of the inner hole of the floating sleeve, and then press the end surface of the floating sleeve tightly. While rotating the floating sleeve slowly and at a constant speed, the lift detection of the oil wedge of the floating sleeve can be realized.

Description

technical field [0001] The invention relates to the field of high-precision oil wedge machining of metal bearings, in particular to a machining and detection method for improving the detection efficiency of an oil wedge in an inner hole of a floating sleeve. Background technique [0002] With the high-quality development of the industry, customers have more and more strict requirements for the processing quality of precision parts. As the key parts of supercharger products, the processing quality of floating sleeve type high-precision precision parts is the focus of attention. Among the various structures of similar parts, the processing difficulty of the inner hole oil wedge is the most prominent, which is embodied in the following aspects: [0003] 1. High precision [0004] The detection accuracy of the oil wedge lift in the inner hole of this part is 0.01mm, such as figure 1 shown. [0005] The lift accuracy of the oil wedge is limited by factors such as the repeated ...

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

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