JPS6379106U - - Google Patents
Info
- Publication number
- JPS6379106U JPS6379106U JP17481886U JP17481886U JPS6379106U JP S6379106 U JPS6379106 U JP S6379106U JP 17481886 U JP17481886 U JP 17481886U JP 17481886 U JP17481886 U JP 17481886U JP S6379106 U JPS6379106 U JP S6379106U
- Authority
- JP
- Japan
- Prior art keywords
- screw nut
- traction shaft
- chuck device
- drive means
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
Landscapes
- Gripping On Spindles (AREA)
Description
第１図はこの考案の一実施例による電動式チヤ
ツク装置のアクチユエータユニツトの構成を示す
部分断面図、第２図は同電動式チヤツク装置の電
気的構成を示すブロツク図、第３図は同電動式チ
ヤツク装置の締め付けトルクの調整動作を説明す
るためのタイムチヤート、第４図は従来の油圧式
チヤツク装置の構成を示す断面図である。
１１……誘導電動機、２５，２６……スプライ
ン軸（駆動手段）、３５，３６……ロードセル、
３８……スクリユーナツト、３９……ドローボル
ト（牽引軸）、４１，４２……皿バネ（弾性部材
）。
FIG. 1 is a partial sectional view showing the structure of an actuator unit of an electric chuck device according to an embodiment of the invention, FIG. 2 is a block diagram showing the electrical structure of the same electric chuck device, and FIG. FIG. 4 is a time chart for explaining the tightening torque adjustment operation of the electric chuck device, and FIG. 4 is a sectional view showing the structure of a conventional hydraulic chuck device. 11...Induction motor, 25, 26...Spline shaft (driving means), 35, 36...Load cell,
38... Screw nut, 39... Draw bolt (traction shaft), 41, 42... Belleville spring (elastic member).
Claims (1)
軸を軸方向に往復動させることによりチヤツク爪
を開閉するようにした電動式チヤツク装置におい
て、前記牽引軸の外周に螺合され、前記駆動手段
によつて回動されるスクリユーナツトと、前記ス
クリユーナツト端部に配置され、前記牽引軸に軸
方向の力が加わつたときに押圧されて、前記スク
リユーナツトの回転を抑止する弾性部材とを具備
することを特徴とする電動式チヤツク装置。 In an electric chuck device that opens and closes a chuck pawl by reciprocating a traction shaft in an axial direction by a drive means using an electric motor as a drive source, the drive means is screwed onto the outer periphery of the traction shaft. a screw nut rotated by the screw nut; and an elastic member disposed at the end of the screw nut and pressed when an axial force is applied to the traction shaft to suppress rotation of the screw nut. An electric chuck device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17481886U JPS6379106U (en) | 1986-11-14 | 1986-11-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17481886U JPS6379106U (en) | 1986-11-14 | 1986-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6379106U true JPS6379106U (en) | 1988-05-25 |
Family
ID=31113560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17481886U Pending JPS6379106U (en) | 1986-11-14 | 1986-11-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6379106U (en) |
-
1986
- 1986-11-14 JP JP17481886U patent/JPS6379106U/ja active Pending
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