CN203210075U - Prestretching locking mechanism of ball screw - Google Patents
Prestretching locking mechanism of ball screw Download PDFInfo
- Publication number
- CN203210075U CN203210075U CN 201320037826 CN201320037826U CN203210075U CN 203210075 U CN203210075 U CN 203210075U CN 201320037826 CN201320037826 CN 201320037826 CN 201320037826 U CN201320037826 U CN 201320037826U CN 203210075 U CN203210075 U CN 203210075U
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- CN
- China
- Prior art keywords
- ball screw
- screw
- bearing
- locking
- bearing block
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a prestretching locking mechanism of a ball screw. Prestretching treatment and later adjustment can be excellently conducted on the screw, a bearing seat can be conveniently installed and adjusted, and therefore accuracy and reliability of the ball screw are improved. The prestretching locking mechanism of the ball screw comprises a lathe bed and the ball screw. The bearing seat and a motor seat are installed on the lathe bed, spacer bushes, bearings, inner ring spacers, outer ring spacers, flange plates, locking nuts and locking rings are installed at both ends of the ball screw, the two ends of the ball screw are sleeved in the bearing seat and the motor seat respectively, the flange plates are fixed on the bearing seat and the motor seat through screws, the locking nuts and the locking rings are installed on the outer sides of the two ends of the ball screw respectively, tighten inner rings of the bearings in advance through screw connection, and are fixed on the bearing seat and the motor seat. The prestretching locking mechanism of the ball screw is characterized in that the locking nuts and the locking rings are also installed at the inner side ends, close to the bearing seat, of the ball screw.
Description
Technical field
The utility model relates to the numerical control machine tool technique field, is specially a kind of prestretched retaining mechanism of ball screw.
Background technology
Ball screw, be that a kind of will rotatablely moving changes into straight-line functional part, owing to have very little frictional resistance, ball screw has now become a strength member of industries such as Digit Control Machine Tool, the mounting means of ball screw also has multiple, and wherein best supporting mount scheme is the fixed installations in two ends, the fixed installation in general two ends, all be by installing in two end axles bearing and one group of locking nut of place, motor cabinet position installation, carrying out prestretched by it.The prestretched meeting makes ball screw can keep in the operating precision of work, has eliminated the influence of thermal stretching to precision, has improved rigidity, precision and the heat endurance of ball screw.Inconvenience is to some extent regulated to the prestretched of ball screw in the necessary accurately location of existing retaining mechanism bearing block when ball screw is installed, and needs the locking nut adjustment of loose ends again when the later stage, adjustment stretched, and influences the location of ball screw.When using the bearing portion that occurs motor cabinet one end after a very long time to rock, ball screw can produce axially play back and forth.
Summary of the invention
At the problems referred to above, the utility model provides a kind of prestretched retaining mechanism of ball screw, and its prestretched that can better carry out screw mandrel handles and the later stage is adjusted, and can carry out the installation adjustment of bearing block more easily simultaneously, make the precision of ball screw, reliability etc. get a promotion.
The technical scheme that the utility model adopts is: it comprises lathe bed and ball screw, bearing block and motor cabinet are installed on the described lathe bed, described ball screw two ends all are equipped with spacer, bearing, cone spacer, outer ring spacer, ring flange and locking nut and clamp ring, the two ends of described ball screw are set with in described bearing block and motor cabinet, and by screw ring flange is fixed on described bearing block and the motor cabinet, described locking nut and clamp ring are installed on the outside, ball screw two ends respectively and the inner ring that is connected bearing by screw carries out pretension, be fixed on bearing block and the motor cabinet, it is characterized in that: described ball screw also is equipped with locking nut and clamp ring near the medial extremity of bearing block.
After adopting design of the present utility model, prestretched to ball screw is regulated more convenient, the locking nut that only needs to adjust bearing end inboard in both sides locking nut locking back can carry out prestretched to ball screw, also increased the convenience that the later stage adjustment stretches, this utility model of while is the installation shaft bearing very easily, bearing block must accurately be located when having avoided the installation ball screw, make precision stability better, the inboard locking of installing additional makes that the bearing end is more firm, when even the bearing of motor cabinet side becomes flexible, because the twin-lock at bearing block place tightly and not can allow axially play back and forth of ball screw, make a whole set of element precision retentivity good, maintenance frequency reduces and is easy to maintenance, has saved maintenance cost and has guaranteed the efficient of processing indirectly.
Description of drawings
Fig. 1 advances the structural representation of mechanism for existing lock;
Fig. 2 is main TV structure schematic diagram of the present utility model.
The specific embodiment
Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.
As shown in Figure 2, the utility model comprises lathe bed 1 and ball screw 2, bearing block 4 and motor cabinet 9 are installed on the lathe bed 1, described ball screw 2 two ends all are equipped with spacer 5, bearing 6, cone spacer 7, outer ring spacer 8, ring flange 3 and the first locking nut 10a, 10b and the first clamp ring 11a, 11b, the two ends of ball screw 2 are set with in bearing block 4 and motor cabinet 9, and by screw 12 ring flange 3 is fixed on described bearing block 4 and the motor cabinet 9, first locking nut 10 and first clamp ring 11 are installed on the outside, ball screw 2 two ends respectively and the inner ring that is connected bearing 6 by screw 13 carries out pretension, be fixed on bearing block 4 and the motor cabinet 9, ball screw 2 has second locking nut 14 and second clamp ring 15 near bearing block 4 end installed inside.
During installation, the first step regulates ball screw 2, the second step earlier and motor cabinet 9 and 4, the three steps of bearing block are installed by the locking nut of 2 three parts of ball screw and clamp ring are locked ball screw 2 are carried out prestretched.Before second step was installed, first step ball screw 2 school mixed up.The right-hand member of ball screw 2 is passed through motor cabinet 9, then successively with spacer 5a, bearing 6a, cone spacer 7a, outer ring spacer 8a and the first locking nut 10a and the first clamp ring 11a are installed to the right side of ball screw 2, swing roller screw mandrel 2 makes the right end portion of ball screw 2 close motor cabinets 9 together with being installed in the bearing installation position that ball screw 2 top parts enter motor cabinet 9, by screw 12 ring flange 3a is fixed on the motor cabinet 9 again, come pretension is carried out in the outer ring of bearing 6 by ring flange 3a, tighten the first locking nut 10a and the first clamp ring 11a then and connect with screw 13a and be in the same place, inner ring to bearing 6 carries out pretension, and fixed electrical machinery seat 9.Simultaneously bearing block 4 is packed into the left end of ball screw 2, second clamp ring 15 is installed on ball screw 2 then successively, second locking nut 14, spacer 5b, bearing 6b, cone spacer 7b, outer ring spacer 8b and the first locking nut 10b and clamp ring 11b, come preliminary pretension is carried out in the outer ring of bearing 6b by ring flange 3b, tightening the first locking nut 10b and the first clamp ring 11b then also links together with screw 13b, inner ring to bearing 6 carries out preliminary pretension, can be with the fixed-site of bearing block 4.During 14 lockings of second locking nut, the spacer 5b on its left side will push left, and the first locking nut 10a of the leftmost side also locks, just can be with the bearing 6b pretension of ball screw 2 left ends, by regulating second locking nut 14 and second clamp ring 15 and the first locking nut 10b and the first clamp ring 11b of ball screw 2 left ends, can make ball screw 2 that an axial prestretched has been arranged, this kind locking mechanism makes the adjustment that ball screw 2 and bearing block 4 are installed very convenient, and all carried out axial location at bearing block 4 and motor cabinet 9 two ends, can better guarantee precision, when using the bearing portion that occurs motor cabinet 9 one ends after a very long time to rock, also be unlikely to allow axially play back and forth of ball screw 2 because of the axial location of second locking nut 14 of bearing block 4 ends, ball screw 2 can be kept in the operating precision of work, eliminated the influence of thermal stretching to precision, rigidity, precision and the heat endurance of ball screw 2 have been improved.
Claims (1)
1. the prestretched retaining mechanism of a ball screw, it comprises lathe bed and ball screw, bearing block and motor cabinet are installed on the described lathe bed, described ball screw two ends all are equipped with spacer, bearing, cone spacer, outer ring spacer, ring flange and locking nut and clamp ring, the two ends of described ball screw are set with in described bearing block and motor cabinet, and by screw ring flange is fixed on described bearing block and the motor cabinet, described locking nut and clamp ring are installed on the outside, ball screw two ends respectively and the inner ring that is connected bearing by screw carries out pretension, be fixed on bearing block and the motor cabinet, it is characterized in that: described ball screw also is equipped with locking nut and clamp ring near the medial extremity of bearing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320037826 CN203210075U (en) | 2013-01-24 | 2013-01-24 | Prestretching locking mechanism of ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320037826 CN203210075U (en) | 2013-01-24 | 2013-01-24 | Prestretching locking mechanism of ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203210075U true CN203210075U (en) | 2013-09-25 |
Family
ID=49199646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320037826 Expired - Fee Related CN203210075U (en) | 2013-01-24 | 2013-01-24 | Prestretching locking mechanism of ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203210075U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775511A (en) * | 2014-01-24 | 2014-05-07 | 江苏大卫精工科技有限公司 | Pretensioning type screw rod |
| CN104589126A (en) * | 2015-01-06 | 2015-05-06 | 江苏元利爱威亚精密机床有限公司 | Integral bearing mechanism for ball screw |
| CN106078176A (en) * | 2016-06-30 | 2016-11-09 | 广州市高品机床有限公司 | A kind of screw mandrel prestretched mounting structure |
| CN107695763A (en) * | 2017-11-23 | 2018-02-16 | 中天智能装备有限公司 | The overlength screw mandrel control device of three workbench common rail self-movements |
| CN110814833A (en) * | 2019-11-18 | 2020-02-21 | 广州佳盟子机床有限公司 | Screw rod pre-stretching mechanism for numerical control machine tool |
-
2013
- 2013-01-24 CN CN 201320037826 patent/CN203210075U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775511A (en) * | 2014-01-24 | 2014-05-07 | 江苏大卫精工科技有限公司 | Pretensioning type screw rod |
| CN104589126A (en) * | 2015-01-06 | 2015-05-06 | 江苏元利爱威亚精密机床有限公司 | Integral bearing mechanism for ball screw |
| CN106078176A (en) * | 2016-06-30 | 2016-11-09 | 广州市高品机床有限公司 | A kind of screw mandrel prestretched mounting structure |
| CN106078176B (en) * | 2016-06-30 | 2018-03-30 | 广州市高品机床有限公司 | A kind of screw mandrel is pre-stretched mounting structure |
| CN107695763A (en) * | 2017-11-23 | 2018-02-16 | 中天智能装备有限公司 | The overlength screw mandrel control device of three workbench common rail self-movements |
| CN107695763B (en) * | 2017-11-23 | 2019-05-14 | 中天智能装备有限公司 | The overlength screw rod control device of three workbench common rail self-movements |
| CN110814833A (en) * | 2019-11-18 | 2020-02-21 | 广州佳盟子机床有限公司 | Screw rod pre-stretching mechanism for numerical control machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: GUIZHOU OTEK CNC MACHINE CO., LTD. Assignor: Wuxi Otec CNC Machinery Co., Ltd. Contract record no.: 2014520000020 Denomination of utility model: Prestretching locking mechanism of ball screw Granted publication date: 20130925 License type: Exclusive License Record date: 20141203 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| 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: 20130925 Termination date: 20170124 |