JPH031748U

JPH031748U -

Info

Publication number: JPH031748U
Application number: JP6333989U
Authority: JP
Priority date: 1989-05-31
Filing date: 1989-05-31
Publication date: 1991-01-09

Description

[Brief explanation of drawings]

第１図は本考案の支持ローラの一実施例を示す
正面図、第２図、第３図、第４図は同・他実施例
を示す正面図、第５図ａ，ｂは本考案の支持ロー
ラと環状被研削物との当接状態を示す説明図、第
６図は本考案の研削盤の平面図、第７図は環状被
研削物の平面研削状態を示す説明図、第８図ａ，
ｂは従来の支持ローラと環状被研削物との当接状
態を示す説明図である。１……研削盤、２……環状砥石、３……環状被
研削物、５……従来の支持ローラ、６……本考案
の支持ローラ、７……円筒状部、８……Ｏリング
保持部、９……Ｏリング、１０……Ｏリング嵌装
溝、１０ａ……環状円形溝、１０ｂ……環状台形
溝、１０ｃ……環状矩形溝、１１……円筒軸、１
２……Ｏリング保持体。 Fig. 1 is a front view showing one embodiment of the support roller of the present invention, Figs. 2, 3, and 4 are front views showing the same and other embodiments, and Figs. FIG. 6 is a plan view of the grinding machine of the present invention; FIG. 7 is an explanatory diagram showing the state of surface grinding of the annular object; FIG. 8 a,
b is an explanatory diagram showing a state of contact between a conventional support roller and an annular object to be ground; DESCRIPTION OF SYMBOLS 1... Grinding machine, 2... Annular grindstone, 3... Annular grinding object, 5... Conventional support roller, 6... Support roller of the present invention, 7... Cylindrical part, 8... O-ring holding Part, 9... O-ring, 10... O-ring fitting groove, 10a... Annular circular groove, 10b... Annular trapezoidal groove, 10c... Annular rectangular groove, 11... Cylindrical shaft, 1
2...O-ring holder.

Claims

[Claims for Utility Model Registration] (1) Three annular grindstones are arranged so that their axes are located at each vertex of an equilateral triangle, and the upper surface of each annular grindstone is the same horizontal grinding surface, and an annular coating is used. The ground surface of the grinding object is brought into contact with the grinding surface of the annular grindstone by gravity, the outer peripheral edge of the annular grinding object is brought into contact with three support rollers, and the annular grinding object is rotated as each annular grindstone rotates. A grinding machine that performs surface grinding while forming an O-ring fitting groove as the support roller,
A grinding machine characterized by using an O-ring made of hard rubber or the like fitted into the O-ring fitting groove. (2) The grinding device according to claim 1, wherein the support roller has an O-ring holding portion integrally formed therein, and the O-ring fitting groove is formed in the O-ring holding portion. Board. (3) Claim (1) characterized in that the support roller has a structure in which a cylindrical shaft is fitted into an O-ring holder, and the O-ring fitting groove is formed in the O-ring holder. Grinding machine mentioned. (4) The grinding machine according to claims (1), (2), and (3), wherein the O-ring fitting groove is an annular circular groove. (5) The grinding machine according to claims (1), (2), and (3), wherein the O-ring fitting groove is an annular trapezoidal groove. (6) The grinding machine according to claims (1), (2), and (3), wherein the O-ring fitting groove is an annular rectangular groove.