JPH031655U - - Google Patents
Info
- Publication number
- JPH031655U JPH031655U JP5829689U JP5829689U JPH031655U JP H031655 U JPH031655 U JP H031655U JP 5829689 U JP5829689 U JP 5829689U JP 5829689 U JP5829689 U JP 5829689U JP H031655 U JPH031655 U JP H031655U
- Authority
- JP
- Japan
- Prior art keywords
- housing
- load side
- spring
- frame
- preload
- 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.)
- Granted
Links
- 230000036316 preload Effects 0.000 claims description 8
Landscapes
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
第１図は本考案の実施例を示す上半部の側断面
図、第２図は他の実施例における一部を示す側断
面図、第３図は従来の例を示す側断面図である。
１はフレーム、３および４はハウジング、５は
回転軸、７および８はアンギユラ軸受、９はばね
受け、１０は段部、１１は予圧ばね、１２は予圧
保持片、１３はばね座、１５はばね、１６はスト
ツパー、１７はコレツト、１８は工具、１９はド
ローバーである。
Fig. 1 is a side sectional view of the upper half of an embodiment of the present invention, Fig. 2 is a side sectional view showing a part of another embodiment, and Fig. 3 is a side sectional view showing a conventional example. . 1 is a frame, 3 and 4 are housings, 5 is a rotating shaft, 7 and 8 are angular bearings, 9 is a spring receiver, 10 is a step, 11 is a preload spring, 12 is a preload holding piece, 13 is a spring seat, 15 is a 16 is a stopper, 17 is a collect, 18 is a tool, and 19 is a drawbar.
Claims (1)
前記コレツトを操作するドローバー１９をそなえ
て工具交換を行う工作機用スピンドルモータにお
いて、負荷側ハウジング３をフレームに固定し、
反負荷側ハウジング４をフレーム１の軸方向に摺
動可能に保持して、それぞれ回転軸５との間にア
ンギユラ軸受７，８を介挿し、 前記回転軸５に、コレツト１７の操作時に負荷
側ハウジング３と接触するストツパー１６をそな
え、 前記反負荷側ハウジング４の負荷側に、フレー
ム内を軸方向に移動しフレームの段部１０に圧接
させたばね受け９と、このばね受け９と反負荷側
ハウジング４との間に挿入した予圧ばね１１と、
ばね受け９と反負荷側ハウジング４の一方に取り
付け他方に接触して予圧ばねを所定値に保持する
予圧保持片１２、 および前記ばね受け９とフレーム１に固定した
ばね座１３との間に加工中の回転軸に加わる引つ
張り力Ｐより強いばね１５をそなえたことを特徴
とする工作機用スピンドルモータ。 ２ 前記予圧保持片１２が、先端に開口する孔に
予圧ばね１１を挿入してばね受け９に螺合し、前
記先端を反負荷側ハウジング４に接触させたねじ
体である実用新案登録請求の範囲第１項記載の工
作機用スピンドルモータ。[Claims for Utility Model Registration] 1. A spindle motor for a machine tool in which a collet 17 is provided at the end of the rotating shaft and a drawbar 19 for operating the collet is provided within the rotating shaft to change tools, in which the load side housing 3 is attached to the frame. fixed,
The housing 4 on the opposite load side is held slidably in the axial direction of the frame 1, and angular bearings 7 and 8 are inserted between the housing 4 and the rotating shaft 5, respectively. A stopper 16 that contacts the housing 3 is provided, and a spring receiver 9 is provided on the load side of the housing 4 on the opposite load side, which moves in the axial direction within the frame and is brought into pressure contact with the stepped portion 10 of the frame, and this spring receiver 9 and the opposite load side a preload spring 11 inserted between the housing 4;
A preload holding piece 12 is attached to one of the spring receiver 9 and the housing 4 on the opposite load side and contacts the other to hold the preload spring at a predetermined value, and a preload holding piece 12 is machined between the spring receiver 9 and the spring seat 13 fixed to the frame 1. A spindle motor for a machine tool, characterized in that it is equipped with a spring 15 that is stronger than the tensile force P applied to the rotating shaft inside. 2. The utility model registration claim wherein the preload holding piece 12 is a screw body in which the preload spring 11 is inserted into a hole opened at the tip, screwed into the spring receiver 9, and the tip is brought into contact with the housing 4 on the opposite load side. A spindle motor for machine tools as described in scope 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5829689U JPH0736461Y2 (en) | 1989-05-20 | 1989-05-20 | Spindle motor for machine tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5829689U JPH0736461Y2 (en) | 1989-05-20 | 1989-05-20 | Spindle motor for machine tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH031655U true JPH031655U (en) | 1991-01-09 |
| JPH0736461Y2 JPH0736461Y2 (en) | 1995-08-16 |
Family
ID=31583775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5829689U Expired - Fee Related JPH0736461Y2 (en) | 1989-05-20 | 1989-05-20 | Spindle motor for machine tools |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0736461Y2 (en) |
-
1989
- 1989-05-20 JP JP5829689U patent/JPH0736461Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0736461Y2 (en) | 1995-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |