CN103433796A - Axial pre-tightening device of ball screw - Google Patents
Axial pre-tightening device of ball screw Download PDFInfo
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- CN103433796A CN103433796A CN201310355584XA CN201310355584A CN103433796A CN 103433796 A CN103433796 A CN 103433796A CN 201310355584X A CN201310355584X A CN 201310355584XA CN 201310355584 A CN201310355584 A CN 201310355584A CN 103433796 A CN103433796 A CN 103433796A
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- machine tool
- tool body
- ball screw
- bearing block
- bearing base
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Abstract
The invention provides an axial pre-tightening device of a ball screw. The device comprises a machine tool body, the front end of the machine tool body is provided with a servo motor bearing base, the rear end of the machine tool body is provided with a rear bearing base, a ball screw pair, a pressing nut, a bearing gland and a bearing assembly are arranged in the servo motor bearing base, a protruding guide tenon is arranged on the servo motor bearing base, a guide groove is formed in the position, corresponding to the servo motor bearing base, of the machine tool body, the guide tenon is matched with the guide groove, an adjusting screw rod is arranged in the guide tenon, the adjusting screw rod is connected with a fixing plate on the machine tool body, a boss is arranged on the position, corresponding to the rear bearing base, of the machine tool body, and the boss is in contact with the rear bearing base. After clearance fit of bearings, by means of displacement adjustment of the bearing bases, axial stretching and pre-tightening of the ball screw of a machine tool transmission system are achieved, adjustment precision is improved, axial force is increased, linear motion precision and dynamic response precision of the ball screw are greatly improved, and operation in assembly is facilitated.
Description
Technical field
The invention belongs to technical field, relate in particular to a kind of ball screw axial pretightening device.
Background technology
Current general machining center workbench ball leading screw driving system, what the pretension in its assembling process adopted is all that the nut that pressured mandrel holds is adjusted, be subject to it to adjust the impact of mode, the axial force of adjusting precision and adjustment is inadequate, thereby has affected linear running precision and the dynamic response precision of screw mandrel.
Summary of the invention
The invention provides a kind of ball screw axial pretightening device, solved the inadequate shortcoming of axial force that pre-tightening apparatus in the background technology is adjusted precision and adjustment.
Technical scheme of the present invention is achieved in that ball screw axial pretightening device, comprise machine tool body, the machine tool body front end is provided with the servomotor bearing block, rear end is provided with rear bearing block, be equipped with ball screw assembly,, clamp nut, bearing gland and bearing combination in the servomotor bearing block, establish bossed guiding tenon on the servomotor bearing block, the machine tool body corresponding with the servomotor bearing block is provided with gathering sill, the two matches, be provided with the adjustment screw rod in the guiding tenon, adjust screw rod and be connected with the fixed head on machine tool body;
The machine tool body corresponding with rear bearing block is provided with boss, and boss contacts with rear bearing block.
The invention has the beneficial effects as follows: after the present invention adopts bearing clearance to work good, by the displacement of adjusting whole bearing block, realize the ball screw of machine tool transmission system is carried out to axial tension and pretension, improved the adjustment precision, strengthened axial force, linear running precision and the dynamic response precision of screw mandrel improve greatly, the operation while having facilitated assembling.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A schematic diagram of the present invention:
Fig. 3 is side view of the present invention.
Part explanation: 1, fixed head, 2, the servomotor bearing block, 3, adjust screw rod, 4, machine tool body, 5, rear bearing block, 6, gathering sill, 7, the guiding tenon, 8, boss, 9, ball screw assembly,, 10, clamp nut, 11, bearing gland, 12, the bearing combination.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described: ball screw axial pretightening device, comprise machine tool body 4, machine tool body 4 front ends are provided with servomotor bearing block 2, rear end is provided with rear bearing block 5, be equipped with ball screw assembly, 9 in servomotor bearing block 2, clamp nut 10, bearing gland 11 and bearing combination 12, establish bossed guiding tenon 7 on servomotor bearing block 2, the machine tool body 4 corresponding with servomotor bearing block 2 is provided with gathering sill 6, the two matches, be provided with and adjust screw rod 3 in guiding tenon 7, adjusting screw rod 3 is connected with the fixed head 1 on machine tool body 4, the machine tool body 4 corresponding with rear bearing block 5 is provided with boss 8, boss 8 contacts with rear bearing block 5.
Servomotor bearing block 2 can move forward and backward in the gathering sill 6 at machine tool body 4 under the effect of adjusting screw rod 3, and rear bearing block 5 is fixing by boss 8 in the rear end of machine tool body 4, thereby, to the ball screw axial tension, plays the purpose of pretension.
Claims (2)
1. ball screw axial pretightening device, comprise machine tool body (4), machine tool body (4) front end is provided with servomotor bearing block (2), rear end is provided with rear bearing block (5), be equipped with ball screw assembly, (9) in servomotor bearing block (2), clamp nut (10), bearing gland (11) and bearing combination (12), it is characterized in that on servomotor bearing block (2) establishing bossed guiding tenon (7), the machine tool body (4) corresponding with servomotor bearing block (2) is provided with gathering sill (6), the two matches, be provided with in guiding tenon (7) and adjust screw rod (3), adjusting screw rod (3) is connected with the fixed head (1) on machine tool body (4).
2. ball screw axial pretightening device according to claim 1, is characterized in that the machine tool body (4) corresponding with rear bearing block (5) is provided with boss (8), and boss (8) contacts with rear bearing block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310355584.XA CN103433796B (en) | 2013-08-15 | 2013-08-15 | Axial pre-tightening device of ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310355584.XA CN103433796B (en) | 2013-08-15 | 2013-08-15 | Axial pre-tightening device of ball screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103433796A true CN103433796A (en) | 2013-12-11 |
| CN103433796B CN103433796B (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310355584.XA Active CN103433796B (en) | 2013-08-15 | 2013-08-15 | Axial pre-tightening device of ball screw |
Country Status (1)
| Country | Link |
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| CN (1) | CN103433796B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880960A (en) * | 2016-04-25 | 2016-08-24 | 苏州达恩克精密机械有限公司 | Installing hook transposition device of automobile exhaust pipe assembly machine |
| CN106194996A (en) * | 2016-07-26 | 2016-12-07 | 成都普瑞斯数控机床有限公司 | Screw mandrel bearing fixed mechanism |
| CN106239235A (en) * | 2016-07-26 | 2016-12-21 | 成都普瑞斯数控机床有限公司 | There is the ball wire rod mechanism of bearing positioning device |
| CN108581616A (en) * | 2018-07-28 | 2018-09-28 | 重庆宏钢数控机床有限公司 | Clearance fit type screw rod pre-tensioning device |
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| JPS5590244A (en) * | 1978-12-25 | 1980-07-08 | Tsugami Corp | Table feed mechanism of nc machine tool |
| EP0799672A1 (en) * | 1996-04-04 | 1997-10-08 | Western Atlas Inc. | Ball screw drive with dynamically adjustable preload |
| CN202137625U (en) * | 2011-01-28 | 2012-02-08 | 纽威数控装备（苏州）有限公司 | Lead screw prestretching device |
| CN202266650U (en) * | 2011-09-15 | 2012-06-06 | 上海团结普瑞玛激光设备有限公司 | Flexible lead screw pre-tightening device |
| CN103072035A (en) * | 2013-01-24 | 2013-05-01 | 无锡市欧泰数控机床有限公司 | Pre-stretching locking mechanism for ball screw |
| CN103158025A (en) * | 2013-03-29 | 2013-06-19 | 西安北村精密机械有限公司 | Bearing combination support structure for rolling ball lead screw support end |
| CN203409581U (en) * | 2013-08-15 | 2014-01-29 | 烟台海德汽车零部件有限责任公司 | Axial pre-tightening device for ball screw |
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2013
- 2013-08-15 CN CN201310355584.XA patent/CN103433796B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590244A (en) * | 1978-12-25 | 1980-07-08 | Tsugami Corp | Table feed mechanism of nc machine tool |
| EP0799672A1 (en) * | 1996-04-04 | 1997-10-08 | Western Atlas Inc. | Ball screw drive with dynamically adjustable preload |
| CN202137625U (en) * | 2011-01-28 | 2012-02-08 | 纽威数控装备（苏州）有限公司 | Lead screw prestretching device |
| CN202266650U (en) * | 2011-09-15 | 2012-06-06 | 上海团结普瑞玛激光设备有限公司 | Flexible lead screw pre-tightening device |
| CN103072035A (en) * | 2013-01-24 | 2013-05-01 | 无锡市欧泰数控机床有限公司 | Pre-stretching locking mechanism for ball screw |
| CN103158025A (en) * | 2013-03-29 | 2013-06-19 | 西安北村精密机械有限公司 | Bearing combination support structure for rolling ball lead screw support end |
| CN203409581U (en) * | 2013-08-15 | 2014-01-29 | 烟台海德汽车零部件有限责任公司 | Axial pre-tightening device for ball screw |
Non-Patent Citations (1)
| Title |
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| 张亮亮: "丝杠预拉伸的实现", 《航空精密制造技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880960A (en) * | 2016-04-25 | 2016-08-24 | 苏州达恩克精密机械有限公司 | Installing hook transposition device of automobile exhaust pipe assembly machine |
| CN105880960B (en) * | 2016-04-25 | 2017-09-12 | 苏州达恩克精密机械有限公司 | The hold-down hook transposer of automobile exhaust pipe kludge |
| CN106194996A (en) * | 2016-07-26 | 2016-12-07 | 成都普瑞斯数控机床有限公司 | Screw mandrel bearing fixed mechanism |
| CN106239235A (en) * | 2016-07-26 | 2016-12-21 | 成都普瑞斯数控机床有限公司 | There is the ball wire rod mechanism of bearing positioning device |
| CN108581616A (en) * | 2018-07-28 | 2018-09-28 | 重庆宏钢数控机床有限公司 | Clearance fit type screw rod pre-tensioning device |
| CN108581616B (en) * | 2018-07-28 | 2024-03-05 | 重庆宏钢数控机床有限公司 | Clearance fit type screw pre-tightening device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103433796B (en) | 2015-07-22 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 264100 Nanguan Street 878, Mouping District, Yantai City, Shandong Province Patentee after: YANTAI HAIDE INTELLIGENT EQUIPMENT Co.,Ltd. Address before: 264100 No. 8 Andrew Street, Muping District, Yantai City, Shandong Province Patentee before: YANTAI HAIDE AUTOMOBILE PARTS Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Axial preloading device for ball screw Effective date of registration: 20211126 Granted publication date: 20150722 Pledgee: YANTAI HAIDE MACHINE TOOL Co.,Ltd. Pledgor: YANTAI HAIDE INTELLIGENT EQUIPMENT Co.,Ltd. Registration number: Y2021980013329 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220725 Granted publication date: 20150722 Pledgee: YANTAI HAIDE MACHINE TOOL Co.,Ltd. Pledgor: YANTAI HAIDE INTELLIGENT EQUIPMENT Co.,Ltd. Registration number: Y2021980013329 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |