CN201391584Y - Transverse ball lead screw drive mechanism - Google Patents
Transverse ball lead screw drive mechanism Download PDFInfo
- Publication number
- CN201391584Y CN201391584Y CN200920131028U CN200920131028U CN201391584Y CN 201391584 Y CN201391584 Y CN 201391584Y CN 200920131028 U CN200920131028 U CN 200920131028U CN 200920131028 U CN200920131028 U CN 200920131028U CN 201391584 Y CN201391584 Y CN 201391584Y
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- CN
- China
- Prior art keywords
- lead screw
- screw
- motor
- drive mechanism
- gear
- 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 relates to a drive mechanism, in particular to a transverse ball lead screw drive mechanism with high precision and transverse feeding. The utility model solves the technical problem of providing a transverse ball lead screw drive mechanism which uses indirectly-transmitted relative accuracy to guarantee the relative accuracy required by the rotation and the drive of a lead screw, and has convenient and accurate installation. The technical proposal is that the transverse ball lead screw drive mechanism comprises a motor and a lead screw drive mechanism, wherein the lead screw drive mechanism is arranged in the casing, the lead screw drive mechanism comprises a drive lead screw and a feed nut seat, wherein the feed screw nut and the drive lead screw are matched through a nut, and are provided with push-pull rods, the feed nut seat and the nut are fixedly connected together, the motor and the drive lead screw drive in the direction that center lines of two shafts are mutually parallel, and a brandreth of a servo and the casing are fixedly connected together.
Description
Technical field
The utility model relates to a kind of driving mechanism, relates in particular to the horizontal ball screw driving mechanism of a kind of highi degree of accuracy traverse feed.
Background technique
Lead screw transmission mechanism is widely used in fields such as numerical control machine tool.Motor and drive lead screw normally are positioned at same straight line installation in the axle center in the existing lead screw transmission mechanism, and motor coaxle directly drives drive lead screw and rotates.During the positive and negative rotation of drive lead screw, stressed at an axis direction, accumulated error is installed to be influenced and the electric-motor-driving vibration influence, and the needed absolute precision of drive lead screw is higher, has correspondingly improved manufacture cost because its accuracy of manufacturing is high.In addition, motor and lead screw transmission mechanism are splits, install and overhaul to change and need repeatedly seek reference for installation, and be not convenient really.
The model utility content
The technical problems to be solved in the utility model is, overcome the higher defective of absolute precision that prior art needs, provide a kind of relative accuracy to guarantee the needed absolute precision of screw mandrel rotation transmission with indirect drive, and horizontal accurately ball screw driving mechanism easy for installation.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
Horizontal ball screw driving mechanism, comprise motor and lead screw transmission mechanism, described lead screw transmission mechanism is arranged in housing, described lead screw transmission mechanism comprises turn-screw and feed nut seat, described feed nut seat cooperate by nut with turn-screw and its on pull bar is installed, described feed nut seat and nut are fixed together; The direction transmission that described motor is parallel to each other at two shaft centre lines by power-transmitting unit and turn-screw, the brandreth of actuating motor and described housing are fixed together.
In the model utility, described power-transmitting unit comprise the driving gear that is anchored on described motor shaft end, with bearing be supported in the described housing driven axle and fastening thereon gearwheel and small gear, be anchored on the driven gear of described turn-screw one end; Described driving gear and gearwheel engagement, described driven gear and pinion.
In the model utility, described driving gear is anchored on the driving shaft, and described driving shaft is connected by coupling with motor; Described driving gear, driving shaft and gearwheel are positioned at described brandreth.
As optimal way of the present utility model, being installed in pull bar on the described feed nut seat and being two and its top is ball-type.
During work, the driving gear of motor shaft end, with bearing be supported in the described housing driven axle and fastening thereon gearwheel and small gear, be anchored on the driven gear of described turn-screw one end; Described driving gear and gearwheel engagement, described driven gear and pinion.Driving gear is anchored on the driving shaft, and described driving shaft is connected by coupling with motor; Described driving gear, driving shaft and gearwheel are positioned at described brandreth.Actuating motor drives the rotation of screw mandrel and drives seesawing of feed nut seat.
This traverse feed screw mandrel assembly structure compared with prior art, have screw mandrel coaxial precision height is installed, moment is big, stressed during the positive and negative rotation of passive screw mandrel, at an axis direction, not being subjected to assembly that the accumulated error precision is installed influences, and is not subjected to the electric-motor-driving vibration influence, with the relative accuracy of the indirect drive of master, driven shaft gear, solved the needed absolute precision problem of screw mandrel rotation transmission.
Two spherical pull bars are installed, to adapt to the transversely action needs of planker of push-and-pull on the feed nut seat.The ball-type pull bar design that adopt on screw mandrel feed nut seat top replaces the plane with spherical convex surface, the needed vertical and parallel accuracy problem in plane when having solved the installation of feed screw nut's seat pull bar.Relative accuracy with 360 ° of convex surface contacts of ball-type has solved needed absolute perpendicularity of plane contact and parallelism precision problem.
In sum, the utlity model has following beneficial effect: the assembly structure of this horizontal ball screw driving mechanism can reach easy for installation and accurate, the purpose that manufacturing efficiency is high separately as overall installation; Owing to use the relative accuracy of the indirect drive of master, driven shaft gear, solved the needed absolute precision problem of screw mandrel rotation transmission, manufacture difficulty descends, and cost also can reduce.
Description of drawings
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model master apparent direction sectional structure schematic representation;
Fig. 2 is that Fig. 1 overlooks the broken section structural representation that direction is removed lathe bed and planker.
The accompanying drawing sign:
1, lathe bed 2, feed nut seat 21, pull bar
3, turn-screw 31, driven gear 4, motor 5, brandreth
51, driving gear 52, driving shaft 6, driven axle 61, small gear
62, gearwheel 7, housing 8, guiding haulage gear 9, planker
Embodiment
Shown in Figure 1, be the utility model master apparent direction sectional structure schematic representation; Be installed with horizontal ball screw driving mechanism on the lathe bed 1, it comprises motor 4 and lead screw transmission mechanism, described lead screw transmission mechanism is arranged in housing 7, described lead screw transmission mechanism comprises turn-screw 3 and feed nut seat 2, described feed nut seat 2 cooperate by nut with turn-screw 3 and its on pull bar 21 is installed, described feed nut seat 2 is fixed together with nut; The direction transmission that described motor 4 is parallel to each other at two shaft centre lines by power-transmitting unit and turn-screw 3, the brandreth 5 and the described housing 7 of actuating motor are fixed together.
Fig. 2 is that Fig. 1 overlooks the broken section structural representation that direction is removed lathe bed and planker; Described power-transmitting unit comprise the driving gear 51 that is anchored on described motor 4 axle heads, with bearing be supported in the described housing 7 driven axle 6 and fastening thereon gearwheel 62 and small gear 61, be anchored on the driven gear 31 of described turn-screw 3 one ends; Described driving gear 51 and gearwheel 62 engagements, described driven gear 31 and small gear 61 engagements.Described driving gear 51 is anchored on the driving shaft 52, and described driving shaft 52 and motor 4 are connected by coupling; Described driving gear 51, driving shaft 52 and gearwheel 62 are positioned at described brandreth 5.
Referring to Fig. 1, being installed in pull bar 21 on the described feed nut seat 2 and being two and its top is ball-type.To adapt to the action needs of the guiding haulage gear 8 push-and-pull plankers 9 that are fixed on the nut seat 2.
In a word, more than be a most preferred embodiment of the present utility model, any simple transformation of making according to the instruction of such scheme all falls into protection domain of the present utility model.
Claims (4)
1, a kind of horizontal ball screw driving mechanism, comprise motor (4) and lead screw transmission mechanism, described lead screw transmission mechanism is arranged in housing (7), described lead screw transmission mechanism comprises turn-screw (3) and feed nut seat (2), described feed nut seat (2) cooperate by nut with turn-screw (3) and its on pull bar (21) is installed, described feed nut seat (2) and nut are fixed together; It is characterized in that: the direction transmission that described motor (4) is parallel to each other at two shaft centre lines by power-transmitting unit and turn-screw (3), the brandreth of actuating motor (5) is fixed together with described housing (7).
2, horizontal ball screw driving mechanism according to claim 1 is characterized in that: described power-transmitting unit comprise the driving gear (51) that is anchored on described motor (4) axle head, with bearing be supported in the described housing (7) driven axle (6) and fastening thereon gearwheel (62) and small gear (61), be anchored on the driven gear (31) of described turn-screw (3) one ends; Described driving gear (51) and gearwheel (62) engagement, described driven gear (31) and small gear (61) engagement.
3, horizontal ball screw driving mechanism according to claim 2 is characterized in that: described driving gear (51) is anchored on the driving shaft (52), and described driving shaft (52) is connected by coupling with motor (4); Described driving gear (51), driving shaft (52) and gearwheel (62) are positioned at described brandreth (5).
4, according to any one described horizontal ball screw driving mechanism of claim 1 to 3, it is characterized in that: being installed in pull bar (21) on the described feed nut seat (2) and being two and its top is ball-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920131028U CN201391584Y (en) | 2009-04-22 | 2009-04-22 | Transverse ball lead screw drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920131028U CN201391584Y (en) | 2009-04-22 | 2009-04-22 | Transverse ball lead screw drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391584Y true CN201391584Y (en) | 2010-01-27 |
Family
ID=41598409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920131028U Expired - Fee Related CN201391584Y (en) | 2009-04-22 | 2009-04-22 | Transverse ball lead screw drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391584Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107250613A (en) * | 2015-02-04 | 2017-10-13 | Ntn株式会社 | Bridge-type ball-screw and its manufacture method |
-
2009
- 2009-04-22 CN CN200920131028U patent/CN201391584Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107250613A (en) * | 2015-02-04 | 2017-10-13 | Ntn株式会社 | Bridge-type ball-screw and its manufacture method |
| CN107250613B (en) * | 2015-02-04 | 2020-03-03 | Ntn株式会社 | Method for manufacturing bridge type ball screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20100422 |