JPH0423245U

JPH0423245U -

Info

Publication number: JPH0423245U
Application number: JP6404590U
Authority: JP
Priority date: 1990-06-19
Filing date: 1990-06-19
Publication date: 1992-02-26

Description

[Brief explanation of drawings]

第１図ないし第７図は本考案の第１実施例を示
す図で、第１図は研磨装置の平面図、第２図は研
磨装置の側面図、第３図はセンタレスチヤツクユ
ニツトを一部切欠いて示す平面図、第４図はセン
タレスチヤツクユニツトの側断面図、第５図は第
４図の−矢視図、第６図は第５図の−断
面図、第７図ａは第４図の−矢視図、第７図
ｂは加圧ローラと加工物との位置関係を示す図、
第８図及び第９図は第２実施例を示す図で、第８
図はセンタレスチヤツクユニツトの側断面図、第
９図は第８図の−矢視図、第１０図ないし第
１３図は従来例の説明に使用した図で、第１０図
は加工物の断面図、第１１図はチヤツク装置の断
面図、第１２図はマグネツト方式のチヤツク装置
の断面図、第１３図はロールタイプのチヤツク装
置の断面図、第１４図ａはシユータイプのチヤツ
ク装置の断面図、第１４図ｂはシユータイプのチ
ヤツク装置の断面図である。１……基台、３……研磨ユニツト、５……セン
タレスチヤツクユニツト、１９……砥石、２１…
…工作物、４７……調整ローラ、７７……支持部
材としての支持ローラ、９７……加圧ローラ。 1 to 7 are views showing a first embodiment of the present invention, in which FIG. 1 is a plan view of the polishing device, FIG. 2 is a side view of the polishing device, and FIG. 3 is a view showing a centerless check unit. FIG. 4 is a side sectional view of the centerless check unit, FIG. 5 is a view taken along the - arrow in FIG. 4, FIG. 6 is a sectional view shown in FIG. 5, and FIG. - arrow view in Fig. 4, Fig. 7b is a diagram showing the positional relationship between the pressure roller and the workpiece,
FIG. 8 and FIG. 9 are diagrams showing the second embodiment.
The figure is a side sectional view of the centerless check unit, FIG. 9 is a view taken along the - arrow in FIG. 8, FIGS. 10 to 13 are views used to explain the conventional example, and FIG. 11 is a sectional view of a chuck device, FIG. 12 is a sectional view of a magnetic type chuck device, FIG. 13 is a sectional view of a roll type chuck device, and FIG. 14a is a sectional view of a shoe type chuck device. , FIG. 14b is a sectional view of a shoe type chuck device. DESCRIPTION OF SYMBOLS 1... Base, 3... Polishing unit, 5... Centerless check unit, 19... Grindstone, 21...
... Workpiece, 47 ... Adjustment roller, 77 ... Support roller as a support member, 97 ... Pressure roller.

Claims

[Scope of Claim for Utility Model Registration] (1) A base, a polishing unit installed on the base for polishing the inner diameter surface of a workpiece with a grindstone, an adjustment roller, and a support member installed on the base. , a centerless chuck unit that holds the workpiece at three points by pressure rollers, and the polishing unit and centerless chuck unit at least in the X direction and in a Y direction that is within the same plane as the X direction and perpendicular to the X direction.
What is claimed is: 1. A polishing apparatus comprising: a control means for performing a predetermined polishing on an inner diameter surface of a workpiece by relatively moving the workpiece in a direction. (2) In the polishing apparatus according to claim 1, the support member of the centerless chuck unit is a support roller, and this support roller is constantly urged toward the workpiece by an elastic member and its position is locked. On the other hand, an adjustment screw is screwed in so as to restrict the bias applied by the elastic member, and by releasing the lock and adjusting the screwing amount of the adjustment screw, the diameter of the workpiece can be adjusted. A polishing device characterized in that the position of the support roller is adjusted according to the position of the support roller, and the position is locked. (3) In the polishing apparatus according to claim 1, the support member of the centerless chuck unit is a support plate, and the support plate is movable back and forth in the direction of the workpiece and can be moved to a position according to the workpiece. A polishing device characterized in that it is fixed. (4) In the polishing apparatus according to claim 1, the pressure roller of the centerless chuck unit is constantly urged in the direction of the workpiece by an elastic member,
A polishing device characterized in that an adjustment screw is connected to the elastic member, and by adjusting the screwing amount of the adjustment screw, the elastic force of the elastic member and the pressing force by the pressure roller are adjusted. .