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Grinding fixture for external rolling channel of three-section wave bearing and machining method of grinding fixture

A three-lobed wave, outer raceway technology, applied in the direction of grinding workpiece supports, metal processing equipment, grinding/polishing equipment, etc. Long cycle and other problems, to achieve the effect of simple structure, saving process and low cost

Active Publication Date: 2014-02-19
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the existing three-lobe wave bearing outer raceway is difficult to process, and there is no special grinding fixture, resulting in long processing cycle and high scrap rate

Method used

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  • Grinding fixture for external rolling channel of three-section wave bearing and machining method of grinding fixture
  • Grinding fixture for external rolling channel of three-section wave bearing and machining method of grinding fixture
  • Grinding fixture for external rolling channel of three-section wave bearing and machining method of grinding fixture

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Experimental program
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specific Embodiment approach 1

[0014] Specific implementation mode one: combine figure 1 and figure 2 Describe this embodiment, this embodiment comprises clamping body 1, and described clamping body 1 is disc-shaped clamping body, and the clamp body 1 is provided with annular boss 2 near its outer edge, and the center of clamping body 1 is provided with Irregular circular hole 3, said irregular circular hole 3 includes three first circular arcs 4, three second circular arcs 5 and multiple transition circular arcs 7, three first circular arcs 4 and three second circular arcs 5 are arranged at intervals, and the intersection of each section of the first arc 4 and each section of the second arc 5 is provided with a transition arc 7, which is jointly surrounded by an irregular circular hole 3, and the diameter of the first arc 4 is smaller than that of the second arc. The diameter of the arc 5, a positioning hole 6 is provided between the irregular circular hole 3 and the annular boss 2.

specific Embodiment approach 2

[0015] Specific implementation mode two: combination figure 1 To describe this embodiment, the central angle corresponding to each segment of the first arc 4 in this embodiment is 56°. Such arrangement facilitates matching with the shape of the outer contour of the outer raceway of the three-lobed wave bearing to be processed. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0016] Specific implementation mode three: combination figure 1 To describe this embodiment, the central angle corresponding to each segment of the second arc 5 in this embodiment is 40°. Such arrangement facilitates matching with the shape of the outer contour of the outer raceway of the three-lobed wave bearing to be processed. Other compositions and connections are the same as those in the second embodiment.

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Abstract

The invention discloses a grinding fixture for an external rolling channel of a three-section wave bearing and a machining method of the grinding fixture, and relates to a flexible fixture. The grinding fixture for the external rolling channel of the three-section wave bearing and the machining method aim to solve the problems that the external rolling channel of the three-section wave bearing is large in machining difficulty, dedicated grinding fixtures are not available, the machining cycle is long, and the reject rate is high. The grinding fixture comprises a circular-disc-shaped fixture body, an annular boss is arranged close to the outer edge on the fixture body, an irregular round hole is formed in the center of the fixture body, and a locating hole is formed between the irregular hole and the annular boss. The machining method of the grinding fixture comprises the steps of (1) machining the outer end face and the annular boss of the blank of a workpiece, (2) grinding the end face, the outer circle and the inner hole, (3) drilling the locating hole and the irregular hole, (4) carrying out quenching and cold treatment on the machined workpiece, (5) grinding the end face, the outer surface and the inner surface, and grinding the complex surface of the irregular inner hole through a numerical control machine tool. The grinding fixture for the external rolling channel of the three-section wave bearing is used for grinding the outer rolling channel of the three-section-wave bearing.

Description

technical field [0001] The invention relates to a grinding fixture and a processing method thereof, in particular to a grinding fixture and a processing method thereof for the outer raceway of a three-lobe wave bearing. Background technique [0002] "Three lobe wave" type raceway bearings are short cylindrical roller bearings used in aero-engines. The bearing is characterized by high speed and heavy load. In order to prevent the roller from slipping under light load during rotation, the raceway is designed as a plum blossom petal-shaped contour curve of "three-lobe wave". The accuracy requirements are strict. Since the diameter difference of each point passing through the center in the "three-lobed wave" type is less than 2 μm, it is difficult to process, and there is no special grinding fixture, resulting in long processing cycle and high scrap rate. Contents of the invention [0003] The purpose of the present invention is to solve the problems that the outer raceway of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B41/06B24B19/06
CPCB24B19/06B24B41/06
Inventor 唐双晶刘勇王松杨树新高阳马国滨刘明阳赵生明王福成
Owner AVIC HARBIN BEARING