Method for testing turntable bearing mounting hole by means of mold
A technology of turntable bearings and mounting holes, which is applied in the direction of measuring devices, mechanical devices, mechanical measuring devices, etc., can solve the problems of low accuracy and high cost of three-coordinate measuring machine measurement and detection, and achieve the effect of improving efficiency and reducing costs
Active Publication Date: 2016-07-20
LUOYANG BEARING RES INST CO LTD
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[0003] In order to solve the problems in the prior art that the accuracy of sampling inspection by calipers is not high and the cost of measurement and detection by three coordinate measuring machines is high when detecting the position of the mounting hole of the turntable bearing, the present invention provides a method of using a mold to detect the mounting hole of the turntable bearing The method of whether it is qualified or not is to use the mold to quickly detect the position deviation of the mounting holes of the inner and outer rings of the slewing bearing. While meeting the detection accuracy, it not only improves the detection efficiency, but also reduces the cost
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[0018] As shown in the figure, a method of using a mold to detect whether the mounting hole of the turntable bearing is qualified, the mold includes a detection platform 1, and the detection platform 1 is provided with an annular boss 2 and a horizontal annular groove 5 at the bottom, wherein , the outer diameter of the annular boss 2 is equal to the inner diameter of the inner ring 9 of the turntable bearing to be detected, the annular groove 5 is coaxially arranged around the annular boss 2, and there is a first plane 3 between them, on the first plane 3 A number of positioning holes I4 are distributed, and the position and quantity of the positioning holes I4 coincide with those of the mounting holes on the inner ring 9 of the turntable bearing to be tested; the diameter of the annular groove 5 is the same as that of the outer ring 10 of the turntable bearing to be tested The outer diameters are equal, so that the outer wall 6 of the annular groove 5 is positioned for the ou...
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The invention provides a method for testing a turntable bearing mounting hole by means of a mold. The testing platform of the mold is provided with an annular boss and an annular recessed trough with a horizontal bottom. The outer diameter of the annular boss is equal with the internal diameter of the inner circle of the to-be-tested turntable bearing. The annular recessed trough surrounds the annular boss in a coaxial manner. Furthermore a first plane is arranged between the annular recessed trough and the annular boss. The diameter of the annular recessed trough is equal with the outer diameter of outer circle of the to-be-tested turntable bearing. The first plane and the bottom of the annular recessed trough are provided with positioning holes. Through matching the positioning holes with the mounting holes of the turntable bearing, wherein position offset of the mounting holes is qualified is determined. Through the mold, testing on the mounting holes on the outer circle and the inner circle of a same turntable bearing by means of a same mold is realized, namely different series of YRT, YRTS, ZKLDF, etc. But a same dimension series is tested on a same mold, thereby well satisfying testing requirement, improving efficiency and reducing cost.
Description
technical field [0001] The invention relates to the field of bearing detection, in particular to a method for detecting whether a mounting hole of a turntable bearing is qualified by using a mold. Background technique [0002] At present, with the gradual maturity of machine tool manufacturing technology and the gradual popularization of high-precision machine tools, higher requirements are put forward for the manufacturing technology and testing technology of turntable bearings. The manufacturing accuracy of the mounting hole of the turntable bearing is guaranteed by the indexing system of the machine tool, while the detection of the position deviation of the mounting hole and the wall thickness difference caused by the mounting hole position is generally performed by a caliper for random inspection or measurement by a three-coordinate measuring machine, which is not suitable Use of qualitative situations in production. Sampling inspection not only has low measurement accu...
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IPC IPC(8): G01B5/00G01B5/06
CPCG01B5/00G01B5/06
Inventor 宁晋范雨晴马莹
Owner LUOYANG BEARING RES INST CO LTD