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

A technology of detection efficiency and detection method, applied in the direction of measuring device, mechanical depth measurement, mechanical measuring device, etc., can solve the problems of low yield, loss of reference point of base circle, difficult to guarantee the precision of oil wedge lift, etc., and achieve fast detection , the effect of reducing demand

CN112710212BActive Publication Date: 2022-05-24CHONGQING JIANGJIN SHIPBUILDING IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-05-24

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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.
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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 ...

Examples

Embodiment Construction

[0038] The design principle of the present invention:

[0039] Through in-depth analysis of the structure of the parts, it is found that the oil wedges of the floating sleeve parts are evenly distributed in a certain angle area near the intersection of the base circle, and the theoretical lift value of the oil wedge arc and the base circle is very small. image 3 The lift value at the starting point of the single fan oil wedge with an included angle of α is only 0.001mm. Whether this value is processed or not has basically no effect on the performance of the oil wedge structure itself, so it can be seen from this point. This modification of the processing structure itself is feasible.

[0040] The invention deeply analyzes the function of the oil wedge itself and the influence degree of changing the lift on the product performance, and realizes the double effect of processing and detection by changing the arc processing structure of the oil wedge itself. Arc machining structu...