JPH0375904U

JPH0375904U -

Info

Publication number: JPH0375904U
Application number: JP13587989U
Authority: JP
Priority date: 1989-11-22
Filing date: 1989-11-22
Publication date: 1991-07-30

Description

[Brief explanation of drawings]

第１図は本考案に係る振止め装置の一実施例を
示す第６図中−線概略断面図、第２図はロー
ラの半断面図、第３図及び第４図はローラの夫々
他の態様を示す半断面図、第５図は本考案に係る
振止め装置を備えた棒材供給機を加工機と共に示
す側面図、第６図は棒材供給機及び加工機の概念
図、第７図ａは六角棒の横断面をその外接円と共
に示す図、同図ｂは外接円を六角棒に外周に沿つ
て展開し、該棒の回転により生ずる振動の周波数
を説明する図、第８図ａは四角棒の横断面をその
外接円と共に示す図、同図ｂは外接円を四角棒に
外周に沿つて展開し、該棒の回転により生ずる振
動の周波数を説明する図、第９図は従来の振止め
装置を示す第１図と同様な断面図である。１……角棒、１ａ……角部分、１ｂ……平らな
部分、３……棒材供給機、４……旋盤等の加工機
、９……主軸、１０……チヤツク、１２……刃物
、３６……振止め装置、３７……ローラ、４１…
…ゴム質材で出来た輪部、４２，４３……ローラ
、４４，４５……環状溝。 FIG. 1 is a schematic sectional view taken along the line in FIG. 6 showing an embodiment of the steady-brake device according to the present invention, FIG. FIG. 5 is a side view showing a bar feeder equipped with a steadying device according to the present invention together with a processing machine; FIG. 6 is a conceptual diagram of the bar feeder and processing machine; FIG. Figure a is a diagram showing the cross section of a hexagonal bar along with its circumscribed circle, Figure b is a diagram showing the circumscribed circle expanded along the outer circumference of the hexagonal bar and explaining the frequency of vibration caused by the rotation of the bar, Figure 8 Figure a is a diagram showing the cross section of a square bar along with its circumscribed circle, Figure b is a diagram showing the circumscribed circle expanded along the outer periphery of the square bar and explaining the frequency of vibration caused by the rotation of the bar. FIG. 2 is a sectional view similar to FIG. 1 showing a conventional steady rest device. 1... Square bar, 1a... Corner part, 1b... Flat part, 3... Bar feeder, 4... Processing machine such as a lathe, 9... Main spindle, 10... Chack, 12... Cutting tool , 36... Steady device, 37... Roller, 41...
... Ring portion made of rubber material, 42, 43 ... Roller, 44, 45 ... Annular groove.

Claims

[Scope of Claim for Utility Model Registration] 1. In a steadying device for a bar feeder that supports the middle part of a rotating square bar held by the chuck of a processing machine such as a lathe, a cross section installed in the bar feeder. A plurality of rollers are arranged around the cross section of a rectangular rod as a center, and the roller has a portion in contact with the rod made of a rubber material, and a portion made of the rubber material A steadying device for a bar feeder, characterized in that the steadying device is pivotally supported by a frame member of the device so as to be able to come into contact with a flat portion of a square bar. 2. The steadying device for a bar feeder according to claim 1, wherein an annular groove is formed on the circumferential surface of the roller.