CN101497170B - Nut rotary type leadscrew device of numerically controlled lathe - Google Patents
Nut rotary type leadscrew device of numerically controlled lathe Download PDFInfo
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- CN101497170B CN101497170B CN2009100428564A CN200910042856A CN101497170B CN 101497170 B CN101497170 B CN 101497170B CN 2009100428564 A CN2009100428564 A CN 2009100428564A CN 200910042856 A CN200910042856 A CN 200910042856A CN 101497170 B CN101497170 B CN 101497170B
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- synchronous pulley
- ball
- nut
- screw nut
- screw
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Abstract
The invention discloses a nut rotary type lead screw device of a numerically controlled lathe, which comprises a servo motor and ball lead screw nut driving pair fixed at two ends of a lead screw, and is characterized in that: a synchronous pulley transmission chain is provided; a synchronous pulley arranged at one end of the synchronous pulley transmission chain is connected with the shaft end of the servo motor through an expansion sleeve; a synchronous pulley arranged on the other end of the synchronous pulley transmission chain is connected with a ball lead screw nut; and both the ball lead screw nut and a nut holder are fixedly connected with a bed saddle. The device realizes the conversion of rotation into precision-drive linear motion on a level lathe bed, makes drive more quick and stable on a long numerically controlled lathe, increases processing precision, improves surface roughness and reduces the finishing allowance of the following working procedures.
Description
Technical field
The present invention relates to a kind of nut rotary type leadscrew device of numerically controlled lathe.
Background technology
The kind of drive of traditional numerically controlled lathe feed system is directly to drive ball-screw by servomotor, and the rotatablely move rectilinear motion accuracy that converts to that this kind of drive realizes is not high, and the accumulated error that very easily causes processing longaxones parts increases.Jitter phenomenon when this kind of drive especially easily causes ball-screw to rotate at a high speed for ball-screw when long to such an extent as to make workpiece produce crooked, vibration, has a strong impact on the dimensional accuracy and the surface roughness of processing; Also influence the stationarity of transmission, and may make workpiece produce flexural deformation, turning is difficult to carry out, and causes the increase of subsequent handling allowance.
Summary of the invention
The object of the present invention is to provide a kind of nut rotary type leadscrew device of numerically controlled lathe.Convert the rectilinear motion of accurate transmission to be implemented in to rotatablely move on the level bed body numerically controlled lathe.More quick and stable, transmission accuracy are higher to make transmission on the long size numerically controlled lathe, thereby improve the dimensional accuracy of processing and improve its surface roughness; Reduce the allowance of subsequent handling.Leading screw protective cover and feed screw nut protective cover protected effectively iron filings especially cutting fluid to the harmful effect of precision ball screw and feed screw nut.
Technical scheme of the present invention is: comprise the ball-screw nut transmission of being made up of ball-screw nut and ball-screw that servomotor, leading screw two ends are fixing, it is characterized in that, be provided with the synchronous pulley driving-chain, the synchronous pulley of synchronous pulley driving-chain one end is connected with the axle head of servomotor by the swelling cover, the synchronous pulley of the synchronous pulley driving-chain other end is connected with ball-screw nut, and ball-screw nut is fixed on the lathe saddle with the nut bearing.
During work, rotate moving linearly while servomotor drives ball-screw nut through the synchronous pulley driving-chain, ball-screw nut drives nut bearing moving linearly, and the nut bearing drives the lathe saddle and forms lengthwise movement.
Above the total length of ball-screw He above the ball-screw nut protective cover that prevents that iron filings and cutting fluid from splashing down is being installed all.The present invention has realized will rotatablely moving on one's body at level bed and has converted the rectilinear motion of accurate transmission to, can make more quick and stable of transmission on the long size numerically controlled lathe, can improve machining accuracy and improve its surface roughness; Can reduce the allowance of subsequent handling.And can effectively protect the precision drive parts.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present invention;
Fig. 2 connects for ball-screw nut and the protection schematic diagram.
The specific embodiment
Embodiment:
The axle head of servomotor 1 connects the synchronous pulley 2 of synchronous pulley driving-chain one end, and the synchronous pulley 5 of the synchronous pulley driving-chain other end adopts flat key 4 and screw 3 to be connected on the ball-screw nut 7.Ball-screw nut 7 is fixed on the lathe saddle 11 together by nut bearing 6.Leading screw protective cover 9 is housed on ball-screw 8, feed screw nut protective cover 10 is housed above ball-screw nut 7.
During work, when servomotor 1 drives the rotation of synchronous pulley driving-chain, synchronous pulley 5 is passed to ball-screw nut 7, ball-screw nut 7 rotation on the fixing ball-screw 8 in two ends, so ball-screw nut 7 is done rectilinear motion while rotating, drive nut bearing 6 and do rectilinear motion, thereby realize the lengthwise movement of lathe saddle.Leading screw protective cover 9 can effectively prevent the harmful effect to ball-screw 8 and ball-screw nut 7 of iron filings and cutting fluid, and feed screw nut protective cover 10 can further be guided the cutting fluid of splashing down away from these precision drive parts.
Claims (2)
1. nut rotary type leadscrew device of numerically controlled lathe, comprise the ball-screw nut transmission of forming by ball-screw nut and ball-screw that servomotor, leading screw two ends are fixing, it is characterized in that, be provided with the synchronous pulley driving-chain, the synchronous pulley of synchronous pulley driving-chain one end is connected with the axle head of servomotor by the swelling cover, the synchronous pulley of the synchronous pulley driving-chain other end is connected with ball-screw nut, and ball-screw nut is fixed on the lathe saddle with the nut bearing.
2. nut rotary type leadscrew device of numerically controlled lathe according to claim 1 is characterized in that, above the total length of ball-screw He above the ball-screw nut protective cover that prevents that iron filings and cutting fluid from splashing down is being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100428564A CN101497170B (en) | 2009-03-12 | 2009-03-12 | Nut rotary type leadscrew device of numerically controlled lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100428564A CN101497170B (en) | 2009-03-12 | 2009-03-12 | Nut rotary type leadscrew device of numerically controlled lathe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101497170A CN101497170A (en) | 2009-08-05 |
| CN101497170B true CN101497170B (en) | 2010-06-02 |
Family
ID=40944559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100428564A Expired - Fee Related CN101497170B (en) | 2009-03-12 | 2009-03-12 | Nut rotary type leadscrew device of numerically controlled lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101497170B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722436A (en) * | 2009-12-15 | 2010-06-09 | 大连机床集团有限责任公司 | Driving mechanism for nut rotary type long lead screw |
| JP2011224729A (en) * | 2010-04-20 | 2011-11-10 | Disco Corp | Ball screw protecting bellows mechanism |
| CN101817153A (en) * | 2010-04-26 | 2010-09-01 | 济南二机床集团有限公司 | Ram type milling head feeding mechanism |
| CN102562985A (en) * | 2010-12-21 | 2012-07-11 | 上海团结普瑞玛激光设备有限公司 | Ball screw pair transmission mechanism with rotating nut |
| CN102490066A (en) * | 2011-11-11 | 2012-06-13 | 上海三一精机有限公司 | Nut rotation type screw nut transmission device and boring-milling machine |
| CN102773753A (en) * | 2012-08-14 | 2012-11-14 | 中传重型机床有限公司 | Horizontal feeding device of numerical control vertical lathe with maximum machining diameter of 2.5m |
| CN103317377A (en) * | 2013-05-31 | 2013-09-25 | 济南二机床集团有限公司 | High-speed feeding transmission mechanism for ram type milling head for numerical control machine tool |
| CN105014368B (en) * | 2015-08-04 | 2017-12-22 | 厦门理工学院 | Adjustable multiaxis automatic locking screw machine and its position adjustments method |
| CN105728939B (en) * | 2016-05-09 | 2017-05-24 | 武汉天琪激光设备制造有限公司 | Slide table ascending and descending mechanism for laser cutting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082216U (en) * | 1990-08-13 | 1991-08-07 | 陕西省机械研究院 | Ballscrew opening-chosing mechanism |
| CN2897504Y (en) * | 2006-04-29 | 2007-05-09 | 江苏齐航数控机床有限责任公司 | Chuck protecting shield of common horizontal lathe |
| CN200991831Y (en) * | 2006-12-27 | 2007-12-19 | 天水星火机床有限责任公司 | Numerically-controlling type horizontal machine-tool direct-connection longitudinal feeding device |
-
2009
- 2009-03-12 CN CN2009100428564A patent/CN101497170B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082216U (en) * | 1990-08-13 | 1991-08-07 | 陕西省机械研究院 | Ballscrew opening-chosing mechanism |
| CN2897504Y (en) * | 2006-04-29 | 2007-05-09 | 江苏齐航数控机床有限责任公司 | Chuck protecting shield of common horizontal lathe |
| CN200991831Y (en) * | 2006-12-27 | 2007-12-19 | 天水星火机床有限责任公司 | Numerically-controlling type horizontal machine-tool direct-connection longitudinal feeding device |
Non-Patent Citations (1)
| Title |
|---|
| JP平11-277359A 1999.10.12 |
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| Publication number | Publication date |
|---|---|
| CN101497170A (en) | 2009-08-05 |
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Effective date of registration: 20171115 Address after: 410000 Hunan province Changsha economic and Technological Development Zone, spring pond street, East ten road, South Section 17 service outsourcing base factory building Patentee after: Hunan Jinling machine tool Limited by Share Ltd Address before: 628 No. 410205 Hunan province Changsha Hexi Lugu Avenue Patentee before: Changsha Jinling Machine Tool Co.,Ltd. |
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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: 20100602 Termination date: 20180312 |