JPH0423247U

JPH0423247U -

Info

Publication number: JPH0423247U
Application number: JP6539890U
Authority: JP
Priority date: 1990-06-20
Filing date: 1990-06-20
Publication date: 1992-02-26

Description

[Brief explanation of the drawing]

第１図は本願考案実施例の部分正面図、第２図
は同じく部分平面図、第３図は回転チヤツクの実
施例を示す斜視図。１……支持部分、２……第一の研磨装置、３…
…第二の研磨装置、１２……駆動ローラ、１３…
…従動ローラ、１４，１５……押えローラ、２２
……台車、２４……軸受台、２６……砥石軸、２
８……砥石、３２……台車、３４……回転軸、３
５……回転チヤツク、３６……砥石軸、３７……
砥石、Ｐ……Ｔ字形異形管、Ｌ……砥石２８の長
さ、Ｄ_２……枝管部の内径。 FIG. 1 is a partial front view of an embodiment of the invention, FIG. 2 is a partial plan view, and FIG. 3 is a perspective view of an embodiment of the rotary chuck. DESCRIPTION OF SYMBOLS 1...Supporting part, 2...First polishing device, 3...
...Second polishing device, 12...Drive roller, 13...
...Followed roller, 14, 15...Press roller, 22
...Dolly, 24... Bearing stand, 26... Grinding wheel shaft, 2
8...Whetstone, 32...Dolly, 34...Rotating shaft, 3
5... Rotating chuck, 36... Grinding wheel shaft, 37...
Grinding stone, P... T-shaped irregular tube, L... Length of grinding wheel 28, D ₂ ... Inner diameter of branch pipe portion.

Claims

[Scope of utility model registration request]

A T-shaped irregularly shaped tube is held between rotatable upper and lower rollers, and a bearing stand that rotatably supports a grindstone that is at least longer than the inner diameter of the branch tube is placed on a truck so as to be able to move up and down, and the truck moves in the direction of the tube axis. A first polishing device that moves forward and backward, and a rotating shaft directly connected to a drive source are placed on a trolley that moves forward and backward in the direction of the axis of a horizontally protruding branch pipe of a stationary T-shaped irregular tube. A device for polishing the inner surface of a T-shaped irregular tube, characterized in that it combines a grindstone shaft eccentrically supported from the rotating shaft and a second polishing device from which a grindstone projects.