JPS6258102U

JPS6258102U -

Info

Publication number: JPS6258102U
Application number: JP14656085U
Authority: JP
Priority date: 1985-09-27
Filing date: 1985-09-27
Publication date: 1987-04-10

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案による一実施例の作業概念図、
第２図はその―矢視断面図、第３図は本考案
の他の一実施例の作業概念図、第４図は従来の中
間軸承装置の概念図である。又、図中の符号で１は主軸、２は中ぐり棒、３
はワーク、４，２５は切削工具、５は軸受本体、
８は弾性パツド、１２は圧力流体、２１は主軸頭
、２２はアタツチメント、２６は中間軸承装置で
ある。 FIG. 1 is a conceptual diagram of the work of an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the arrow 2, FIG. 3 is a conceptual diagram of the operation of another embodiment of the present invention, and FIG. 4 is a conceptual diagram of a conventional intermediate bearing device. Also, in the symbols in the figure, 1 is the main shaft, 2 is the boring bar, and 3 is the main shaft.
is a workpiece, 4 and 25 are cutting tools, 5 is a bearing body,
8 is an elastic pad, 12 is a pressure fluid, 21 is a spindle head, 22 is an attachment, and 26 is an intermediate bearing device.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

ワークに形成された穴に差し込まれる棒状の回
転体に摺動自在に嵌合されてこの回転体を支持す
る円筒状の軸受本体と、この軸受本体の外周に取
付けられて径方向に撓み変形し得る弾性パツドと
、この弾性パツドに対する流体の給排手段とを具
え、前記弾性パツドは前記流体の供給を受けて前
記穴の内周面に押圧され、その反力でワークに対
し前記軸受本体を保持するようにしたことを特徴
とする中間軸承装置。 A cylindrical bearing body that is slidably fitted to a rod-shaped rotating body that is inserted into a hole formed in a workpiece and supports this rotating body, and a cylindrical bearing body that is attached to the outer periphery of this bearing body and that is flexibly deformed in the radial direction. and a means for supplying and discharging fluid to the elastic pad, and the elastic pad receives the fluid and is pressed against the inner peripheral surface of the hole, and the reaction force causes the bearing body to move against the workpiece. An intermediate bearing device characterized in that it is configured to hold.