JPS6397441U - - Google Patents
Info
- Publication number
- JPS6397441U JPS6397441U JP19202486U JP19202486U JPS6397441U JP S6397441 U JPS6397441 U JP S6397441U JP 19202486 U JP19202486 U JP 19202486U JP 19202486 U JP19202486 U JP 19202486U JP S6397441 U JPS6397441 U JP S6397441U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- main shaft
- adjustment spacer
- oil chamber
- optimum
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims 2
- 230000036316 preload Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Automatic Control Of Machine Tools (AREA)
- Turning (AREA)
- Support Of The Bearing (AREA)
Description
第１図は主軸の要部縦断面図、第２図は油室の
構造を示す要部横断面略図である。第３図は温度
制御手段の略図、第４図は制御部のフローチヤー
トである。
１ａ，１ｂ……主軸ベアリング、２ａ，２ｂ…
…外輪、５……調節用スペーサ、６……発熱抵抗
体、７……油室、１０……温度センサ、１１ａ，
１１ｂ……通路、１２……制御部、１４……クー
ラ、２１……主軸ハウジング、２２……主軸、２
４……押しねじ、Ｐ……ポンプ。
FIG. 1 is a vertical cross-sectional view of the main part of the main shaft, and FIG. 2 is a schematic cross-sectional view of the main part showing the structure of the oil chamber. FIG. 3 is a schematic diagram of the temperature control means, and FIG. 4 is a flowchart of the control section. 1a, 1b...Main shaft bearing, 2a, 2b...
... Outer ring, 5 ... Adjustment spacer, 6 ... Heat generating resistor, 7 ... Oil chamber, 10 ... Temperature sensor, 11a,
11b... Passage, 12... Control unit, 14... Cooler, 21... Main shaft housing, 22... Main shaft, 2
4...Push screw, P...Pump.
Claims (1)
た、油室を有し、かつ発熱抵抗体を取付けた調節
用スペーサと、主軸ハウジングに設けた油室へ連
通する通路と、調節用スペーサ温度を検出する温
度センサと、温度センサで検出した温度から算出
した調節用スペーサ長と、主軸回転数から算出し
た最適プリロード量を付与可能な最適調節用スペ
ーサ長とを比較して、最適調節用スペーサ長を得
られる温度に調節用スペーサを、発熱抵抗体へ通
電して加熱し、一定温度に制御された油を通路を
経て油室へ供給して冷却する温度制御手段を具備
する、工作機械の主軸ベアリングにかかるプリロ
ードを電熱と油とを用いて一定に維持する装置。 An adjustment spacer with an oil chamber and a heating resistor installed between the outer rings of the main shaft bearing of a machine tool, a passage communicating with the oil chamber provided in the main shaft housing, and an adjustment spacer that controls the temperature of the main shaft bearing. The optimum adjustment spacer length is determined by comparing the temperature sensor to be detected, the adjustment spacer length calculated from the temperature detected by the temperature sensor, and the optimum adjustment spacer length that can provide the optimum preload amount calculated from the spindle rotation speed. The main shaft of a machine tool is equipped with a temperature control means that heats the adjusting spacer by energizing the heating resistor to the desired temperature, and cools it by supplying oil controlled at a constant temperature to the oil chamber through a passage. A device that uses electric heat and oil to maintain a constant preload on the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986192024U JPH071205Y2 (en) | 1986-12-13 | 1986-12-13 | A device that optimally controls the preload on the spindle bearing of a machine tool using electric heat and oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986192024U JPH071205Y2 (en) | 1986-12-13 | 1986-12-13 | A device that optimally controls the preload on the spindle bearing of a machine tool using electric heat and oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6397441U true JPS6397441U (en) | 1988-06-23 |
| JPH071205Y2 JPH071205Y2 (en) | 1995-01-18 |
Family
ID=31146714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986192024U Expired - Lifetime JPH071205Y2 (en) | 1986-12-13 | 1986-12-13 | A device that optimally controls the preload on the spindle bearing of a machine tool using electric heat and oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH071205Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010194684A (en) * | 2009-02-26 | 2010-09-09 | Nsk Ltd | Bearing for main spindle device of machine tool, main spindle device of machine tool, and machine tool |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5020382A (en) * | 1973-06-23 | 1975-03-04 | ||
| JPS60135163A (en) * | 1983-12-22 | 1985-07-18 | Isuzu Motors Ltd | Cutter edge position correcting device |
-
1986
- 1986-12-13 JP JP1986192024U patent/JPH071205Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5020382A (en) * | 1973-06-23 | 1975-03-04 | ||
| JPS60135163A (en) * | 1983-12-22 | 1985-07-18 | Isuzu Motors Ltd | Cutter edge position correcting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010194684A (en) * | 2009-02-26 | 2010-09-09 | Nsk Ltd | Bearing for main spindle device of machine tool, main spindle device of machine tool, and machine tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH071205Y2 (en) | 1995-01-18 |
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