CN1247361C - Rotation worktable of machine tool - Google Patents
Rotation worktable of machine tool Download PDFInfo
- Publication number
- CN1247361C CN1247361C CN 200310107654 CN200310107654A CN1247361C CN 1247361 C CN1247361 C CN 1247361C CN 200310107654 CN200310107654 CN 200310107654 CN 200310107654 A CN200310107654 A CN 200310107654A CN 1247361 C CN1247361 C CN 1247361C
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- China
- Prior art keywords
- motor
- worm screw
- driver
- counter
- worm
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Abstract
The present invention discloses a rotation worktable for a machine tool, which particularly relates to a rotation worktable of a machine tool, which can be accurately positioned and transmitted by a worm-wheel worm screw. The present invention is composed of a rotation platform (1), a worm wheel (2), a corotational worm screw (3), a contrarotation worm screw (4), a motor (5), a motor (6), a corotational driver (7) and a contrarotation driver (8), wherein the rotation platform (1) is fixedly connected and coaxially rotated with the worm wheel (2), and the corotational worm screw (3) and the contrarotation worm screw (4) are respectively in mesh with the worm wheel (2); the motor (6) offers rotary motive power for the contrarotation worm screw (4), and the motor (5) offers the rotary motive power for the corotational worm screw (3); the corotational driver (7) controls the size and the direction of an electric current of a winding in the motor (5), and the contrarotation driver (8) controls the size and the direction of the electric current of a winding in the motor (6). A gap which is formed on the sides of teeth does not affect the rotation accuracy of the worm wheel (2), so the rotation platform (1) can be accurately position. The present invention has the advantages of reasonable design, reliable operation and easy generalization.
Description
Technical field: the present invention relates to the low speed rotation platform that a kind of lathe is used, be specifically related to the lathe rotation platform of the pinpoint worm and gear transmission of a kind of energy.
Background technology: the lathe rotation platform of existing worm and gear transmission, since worm gear and worm screw this to existing backlash between the transmission, when rotation platform from just changing when counter-rotating into, the angular signal of its input can and the actual rotational angle of rotation platform between have a difference.Influence the positioning accuracy and the positioning and rigid of rotation platform, reduced the machining accuracy of part to be processed on the platform, be unfavorable for manipulating of operating personnel.
Summary of the invention: the low and low defective of positioning and rigid of lathe rotation platform positioning accuracy in order to overcome existing worm and gear transmission provides a kind of energy pinpoint lathe rotation platform.The present invention is achieved by following proposal: a kind of lathe rotation platform, it is by rotation platform 1, worm gear 2, just changeing worm screw 3, counter-rotating worm screw 4, motor 5, motor 6, just changeing driver 7, counter-rotating driver 8 is formed, rotation platform 1 is fixedlyed connected and coaxial rotation with worm gear 2, just changeing worm screw 3 and counter-rotating worm screw 4 meshes with worm gear 2 respectively, motor 6 provides the power of rotation for counter-rotating worm screw 4, motor 5 is given is just changeing the power that worm screw 3 provides rotation, just changeing the size of current and the direction of winding in the driver 7 control motor 5, the size of current and the direction of winding in the counter-rotating driver 8 control motor 6; It also comprises the rotary angle signal x that controller 9, pre-torque device 10, proportional gain device 11, proportional gain device 12, controller 9 reception worm gears 2 feed back and sends dtc signal f, the road signal f that sends with pre-torque device 10 after proportional gain device 11 amplifies of dtc signal f
0Superposeing and passing to just changes driver 7, is just changeing driver 7 control motor 5, the signal f that send with pre-torque device 10 after proportional gain device 12 amplifies on another road of dtc signal f
0Subtract each other and pass to counter-rotating driver 8, counter-rotating driver 8 control motor 6, motor 5 provides forward torque M1 for worm gear 2 by just changeing worm screw 3, and motor 6 provides opposing torque M2 for worm gear 2 by counter-rotating worm screw 4.Lathe rotation platform of the present invention at work, just changeing worm screw 3 rotates simultaneously with counter-rotating worm screw 4, just change 2 on worm screw 3 and worm gear and do not having the forward gap, counter-rotating worm screw 4 and 2 on worm gear do not have backlass, make rotation platform 1 positioning and rigid height, when needing rotation platform 1 to be transformed to reverse rotation from being rotated in the forward, the opposite spin of driver control motor, because counter-rotating worm screw 4 and 2 on worm gear do not have backlass, backlash is had no effect to the running accuracy of worm gear 2, therefore rotation platform 1 is accurately located.That the present invention has is reasonable in design, reliable operation and the advantage of promotion and implementation easily.
Description of drawings: Fig. 1 is a structural representation of the present invention, Fig. 2 be the A of Fig. 1 to view, Fig. 3 is the structural representation of embodiment two.
The specific embodiment one: specify present embodiment below in conjunction with Fig. 1 and Fig. 2.It is by rotation platform 1, worm gear 2, just changeing worm screw 3, counter-rotating worm screw 4, motor 5, motor 6, just changeing driver 7, counter-rotating driver 8 is formed, rotation platform 1 is fixedlyed connected and coaxial rotation with worm gear 2, just changeing worm screw 3 locates with the two relative sides that counter-rotating worm screw 4 is arranged on worm gear 2, just changeing worm screw 3 and counter-rotating worm screw 4 meshes with worm gear 2 respectively, motor 6 provides the power of rotation for counter-rotating worm screw 4, motor 5 is given is just changeing the power that worm screw 3 provides rotation, just changeing the size of current and the direction of winding in the driver 7 control motor 5, the size of current and the direction of winding in the counter-rotating driver 8 control motor 6.
The specific embodiment two: specify present embodiment below in conjunction with Fig. 3.The difference of present embodiment and embodiment one is, it also comprises controller 9, pre-torque device 10, proportional gain device 11, proportional gain device 12, the rotary angle signal x that controller 9 reception worm gears 2 feed back also sends dtc signal f, the road signal f that sends with pre-torque device 10 after proportional gain device 11 amplifies of dtc signal f
0Stack, and the signal K after the stack
2F+f
0Passing to just changes driver 7, wherein, and described K
2Be the multiplication factor of proportional gain device 11, just changeing driver 7 control motor 5, the signal f that send with pre-torque device 10 on another road of dtc signal f after proportional gain device 12 amplifies
0Subtract each other, and the signal K after subtracting each other
1F-f
0Pass to counter-rotating driver 8, wherein, described K
1Be the multiplication factor of proportional gain device 12, counter-rotating driver 8 control motor 6, motor 5 provides forward torque M1 for worm gear 2 by just changeing worm screw 3, and motor 6 provides opposing torque M2 for worm gear 2 by counter-rotating worm screw 4.Present embodiment is by two drivers of controller 9 unified controls, and the location is more accurate when making rotation platform conversion direction of rotation, the automation of easier realization control.
Claims (1)
1, a kind of lathe rotation platform, by rotation platform (1), worm gear (2), just changeing worm screw (3), counter-rotating worm screw (4), motor (5), motor (6), just changeing driver (7), counter-rotating driver (8) is formed, rotation platform (1) is fixedlyed connected and coaxial rotation with worm gear (2), just changeing worm screw (3) and the counter-rotating worm screw (4) mesh with worm gear (2) respectively, motor (6) provides the power of rotation for counter-rotating worm screw (4), motor (5) is given is just changeing the power that worm screw (3) provides rotation, just changeing the size of current and the direction of winding in driver (7) the control motor (5), the size of current and the direction of winding in counter-rotating driver (8) the control motor (6); It is characterized in that, it also comprises controller (9), pre-torque device (10), proportional gain device (11), proportional gain device (12), the rotary angle signal (x) that controller (9) reception worm gear (2) feeds back also sends dtc signal (f), the one tunnel signal (f that sends with pre-torque device (10) after proportional gain device (11) amplifies of dtc signal (f)
0) superposeing and passing to just changes driver (7), is just changeing driver (7) control motor (5), the signal (f that send with pre-torque device (10) after proportional gain device (12) amplifies on another road of dtc signal (f)
0) subtract each other and pass to the counter-rotating driver (8), counter-rotating driver (8) control motor (6), motor (5) provides forward torque (M1) for worm gear (2) by just changeing worm screw (3), and motor (6) provides opposing torque (M2) for worm gear (2) by counter-rotating worm screw (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107654 CN1247361C (en) | 2003-10-31 | 2003-10-31 | Rotation worktable of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107654 CN1247361C (en) | 2003-10-31 | 2003-10-31 | Rotation worktable of machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1539595A CN1539595A (en) | 2004-10-27 |
| CN1247361C true CN1247361C (en) | 2006-03-29 |
Family
ID=34334414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310107654 Expired - Fee Related CN1247361C (en) | 2003-10-31 | 2003-10-31 | Rotation worktable of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1247361C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398162B (en) * | 2010-09-19 | 2013-06-26 | 安阳鑫盛机床股份有限公司 | High-precise rotating working platform directly driven by torque motor |
| CN103121168A (en) * | 2011-11-18 | 2013-05-29 | 烟台环球数控装备有限公司 | Numerical-control large-scale precise dual-drive gap removing rotating working table |
| CN108443427A (en) * | 2018-05-21 | 2018-08-24 | 深圳市六八工业自动化设备有限公司 | A kind of transmission device |
-
2003
- 2003-10-31 CN CN 200310107654 patent/CN1247361C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1539595A (en) | 2004-10-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG JUNENG HOLDINGS LIMITED Free format text: FORMER OWNER: HARBIN INSTITUTE OF TECHNOLOGY Effective date: 20080912 Owner name: ZHEJIANG GUANXI ELECTRIC CO., LTD. Free format text: FORMER OWNER: ZHEJIANG JUNENG HOLDINGS LIMITED Effective date: 20080912 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080912 Address after: 4D 63, nine Ring Road, Jianggan District, Zhejiang, Hangzhou: 310035 Patentee after: ZHEJIANG GUANXI ELECTRIC & MOTOR Co.,Ltd. Address before: Hangzhou City, Zhejiang Province, Binjiang District Jiangnan Road No. 3888 Sunyard building seven floor, zip code: 310035 Patentee before: Zhejiang Energy Holdings Ltd. Effective date of registration: 20080912 Address after: Hangzhou City, Zhejiang Province, Binjiang District Jiangnan Road No. 3888 Sunyard building seven floor, zip code: 310035 Patentee after: Zhejiang Energy Holdings Ltd. Address before: No 92, West Da Jie street, Nangang District, Heilongjiang, Harbin: 150001 Patentee before: Harbin Institute of Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060329 Termination date: 20161031 |