Processing method of needle roller chamfering and processing method of needle roller
A processing method and needle roller technology, which is applied in the field of bearing manufacturing, can solve the problems of poor stability of needle roller bearings, difficulty in assembling needle roller bearings, and short service life.
Active Publication Date: 2021-07-16
SUZHOU XINHAO BEARING
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Problems solved by technology
[0005] The purpose of the present invention is to provide a needle roller chamfering processing method and a needle roller processing method to alleviate the large dispersion of the needle roller chamfers of the needle roller bearings in the prior art, which leads to the assembly of the needle roller bearings. Difficulty, and the technical problems of poor stability and short service life of needle roller bearings
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[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0034] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The invention provides a needle roller chamfering processing method and a needle roller processing method, which relate to the technical field of bearing manufacturing. Wherein, the processing steps of the processing method of needle roller chamfering include: cutting off the bar stock to obtain the first needle roller blank; First chamfering is formed at both ends to obtain a second needle blank; soft grinding is performed on the second needle blank to obtain a third needle blank; the third needle blank is placed in the throwing cylinder, and the The throwing cylinder throws the first chamfer to obtain the second chamfer. The throwing step in the processing method of the needle roller chamfer can effectively compress the dispersion of the radius of the first chamfer, obtain a second chamfer with a high radius consistency, improve the machining accuracy of the needle roller chamfer, and ensure that When the needle roller bearing is assembled, the needle roller is smoothly loaded, which improves the stability of the needle roller bearing during operation and prolongs its service life accordingly.
Description
technical field [0001] The invention relates to the technical field of bearing manufacture, in particular to a processing method for chamfering a needle roller and a processing method for a needle roller. Background technique [0002] Needle roller bearings are bearings with needle rollers, which have the characteristics of compact structure. Although the needle rollers have a small cross section, needle roller bearings still have high load bearing capacity, especially suitable for support structures with limited radial installation dimensions . [0003] When the needle roller bearing is running, the running stability of the needle roller is directly related to the service life of the needle roller bearing. When the chamfering of the needle roller is large, it is easy to cause the needle roller to run unstable, resulting in swing and retainer ribs. Abnormal contact leads to wear of the cage; in addition, when the dispersion of the needle chamfer is large, it is difficult to...
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IPC IPC(8): B23P15/00F16C33/34
CPCB23P15/003F16C33/34
Inventor 黄伟达胡浩
Owner SUZHOU XINHAO BEARING