CN209800664U - Driving device of rotary ball spline - Google Patents
Driving device of rotary ball spline Download PDFInfo
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- CN209800664U CN209800664U CN201920359297.9U CN201920359297U CN209800664U CN 209800664 U CN209800664 U CN 209800664U CN 201920359297 U CN201920359297 U CN 201920359297U CN 209800664 U CN209800664 U CN 209800664U
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Abstract
The utility model discloses a rotation type ball spline's drive arrangement, including the smooth cap of linear spline, the smooth cap of thread spline, and screw spline shaft, the smooth cap of thread spline includes thread spline bearing overcoat and thread spline inner core, the smooth cap of linear spline includes linear spline bearing overcoat and linear spline inner core, drive arrangement includes the fixed establishment of fixed thread spline bearing overcoat and linear spline bearing overcoat, the thread spline driving source of being connected with thread spline inner core looks drive, the linear spline driving source of being connected with linear spline inner core looks drive, and linear guiding mechanism, screw spline shaft's one end interferes with linear guiding mechanism mutually, other end coupling clamp mechanism. The utility model discloses can realize carrying on of pairing rotation formula ball spline, assembly operation is high-efficient succinct, and the operation is stable. The screw spline shaft has high linear displacement precision and circumferential rotation precision, and meets the requirement of operation precision. The whole structure is ingenious, and the assembly and the implementation are easy.
Description
Technical Field
The utility model relates to a drive arrangement of rotation type ball spline belongs to combined ball spline and carries on actuating mechanism's technical field.
Background
The ball spline is a linear motion system that can transmit torque when the spline housing is moved linearly on a precision ground shaft using steel balls therein. The spline has a compact structure, can transmit excessive load and power, and has a long service life.
The ball spline generally comprises a shaft rod, a spline outer cylinder and a bearing outer cylinder, wherein the bearing outer cylinder and the spline outer cylinder are in rotatable fit, and the shaft rod and the spline outer cylinder are in linear sliding fit or threaded fit.
in general, ball splines are used independently or in combination, and when they are used in combination, a composite track design is required for a shaft rod, and a screw spline shaft, which is an axial linear slide, is required.
When the traditional combined type carried ball spline is used, the carrying of the two ball splines is very complex, the relatively stable fixing is difficult to realize, the linear displacement of the screw spline shaft is unstable, the position degree deviation is easy to cause, and the irreversible serious abrasion is generated on the ball spline.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the not enough of above-mentioned prior art, to the complicated and poor problem of operational stability of combined ball spline drive assembly, provide a drive arrangement of rotation type ball spline.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
a driving device of a rotary ball spline, the rotary ball spline comprising a linear spline slide cap, a threaded spline slide cap, and a screw spline shaft on which the linear spline slide cap and the threaded spline slide cap are slidably carried,
The thread spline sliding cap comprises a thread spline bearing outer sleeve and a thread spline inner core, the linear spline sliding cap comprises a linear spline bearing outer sleeve and a linear spline inner core,
the driving device comprises a fixing mechanism for integrally fixing the thread spline bearing outer sleeve and the linear spline bearing outer sleeve, a thread spline driving source in driving connection with the thread spline inner core, a linear spline driving source in driving connection with the linear spline inner core, and a linear guide mechanism for linearly guiding the screw spline shaft,
One end of the screw spline shaft is interfered with the linear guide mechanism, and the other end of the screw spline shaft is connected with a clamp mechanism for clamping a carrier.
Preferably, the linear guide mechanism includes a linear slide rail, the linear slide rail is provided with at least two slide seats, and any slide seat is provided with a bearing body matched and connected with the screw spline shaft.
Preferably, the threaded spline bearing outer sleeve comprises a threaded spline pipe sleeve body and a threaded spline outer edge, the linear spline bearing outer sleeve comprises a linear spline pipe sleeve body and a linear spline outer edge,
The threaded spline pipe sleeve body and the linear spline pipe sleeve body are arranged oppositely, the outer diameter of the threaded spline pipe sleeve body is consistent with that of the linear spline pipe sleeve body,
The fixing mechanism comprises a fixing base and a fixing ring sleeve fixedly matched with the fixing base, and the linear spline pipe sleeve body and the threaded spline pipe sleeve body are limited in the fixing ring sleeve.
Preferably, the outer edge of the threaded spline and the outer edge of the linear spline are respectively locked with the fixing ring sleeve.
preferably, the linear spline driving source comprises a linear spline driving motor, a rotating shaft of the linear spline driving motor is in transmission connection with the linear spline inner core through a synchronous belt,
The thread spline driving source comprises a thread spline driving motor, and a rotating shaft of the thread spline driving motor is in transmission connection with the thread spline inner core through a synchronous belt.
preferably, the clamp mechanism comprises a driving arm vertically and oppositely arranged with the screw spline shaft, one end of the driving arm is locked with the screw spline shaft, and the other end of the driving arm is provided with a clamping end.
The beneficial effects of the utility model are mainly embodied in that:
1. the carrying on of the rotary ball spline can be realized, the assembly operation is efficient and simple, and the operation is stable.
2. The screw spline shaft has high linear displacement precision and circumferential rotation precision, and meets the requirement of operation precision.
3. The whole structure is ingenious, and the assembly and the implementation are easy.
Drawings
fig. 1 is a schematic structural view of a driving device of a rotary ball spline according to the present invention.
fig. 2 is a schematic structural view of the middle spiral ball spline of the present invention.
Detailed Description
the utility model provides a drive arrangement of rotation type ball spline. The technical solution of the present invention will be described in detail below with reference to the accompanying drawings so as to be easier to understand and grasp.
a rotary ball spline driving device, as shown in FIG. 2, comprises a linear spline slip cap 1, a threaded spline slip cap 2, and a screw spline shaft 3 on which the linear spline slip cap 1 and the threaded spline slip cap 2 are slidably mounted.
The threaded spline sliding cap 2 comprises a threaded spline bearing outer sleeve 21 and a threaded spline inner core 22, and the linear spline sliding cap 1 comprises a linear spline bearing outer sleeve 11 and a linear spline inner core 12.
As shown in fig. 1, the driving device includes a fixing mechanism 4 for integrally fixing a threaded spline bearing housing 21 and a linear spline bearing housing 11, a threaded spline driving source 5 drivingly connected to a threaded spline inner core 22, a linear spline driving source 6 drivingly connected to a linear spline inner core 12, and a linear guide mechanism 7 for linearly guiding a screw spline shaft 3, and one end of the screw spline shaft 3 interferes with the linear guide mechanism 7, and the other end is connected to a clamp mechanism 8 for clamping a carrier.
specifically, the linear guide mechanism 7 is used for linear guide of the screw spline shaft 3, so that the axial stroke of the screw spline shaft 3 is stabilized, and the linear deflection generated by the linear guide mechanism is prevented from damaging the linear spline sliding cap 1 and the thread spline sliding cap 2.
And can realize through fixed establishment 4 tightly joining in marriage the integral type of screw thread spline bearing overcoat 21 and linear spline bearing overcoat 11, make things convenient for carrying on of drive arrangement, it is comparatively convenient to the loading of rotary ball spline fixed.
The axial displacement control of the screw spline shaft 3 is realized by driving the threaded spline inner core 22 by the threaded spline driving source 5, and the rotational displacement control of the screw spline shaft 3 is realized by driving the linear spline inner core 12 by the linear spline driving source 6.
In one embodiment, the linear guide mechanism 7 includes a linear slide 71, at least two slide carriages 72 are provided on the linear slide, and a bearing body for mating with the screw spline shaft 3 is provided on any slide carriage 72.
Specifically, the slide seat 72 and the screw spline shaft 3 may be of a relative locking structure or a relative moving structure, when the relative locking follow-up structure is adopted, the fixed sleeve of the bearing body is fixed with the slide seat 72, and the moving sleeve of the bearing body is locked with the screw spline shaft 3, when the screw spline shaft axially displaces, the slide seat 72 slides in the linear slide rail 71, so as to realize linear operation stability guiding, and when the screw spline shaft axially rotates and displaces, the moving sleeve of the bearing body follows up to perform circumferential stability guiding. When the structure is relatively movable, the screw spline shaft 3 is directly connected in the bearing body of the sliding seat 72 in a sliding way. In general, the linear guide mechanism 7 has a stroke guard structure that interferes with the free end of the screw spline shaft 3, and the number of the guard structure is omitted in the drawings.
In one embodiment, the threaded spline bearing outer sleeve 21 includes a threaded spline jacket body 211 and a threaded spline outer rim 212, and the linear spline bearing outer sleeve 11 includes a linear spline jacket body 111 and a linear spline outer rim 112.
The threaded spline tube sleeve body 211 is arranged opposite to the linear spline tube sleeve body 111, and the outer diameter of the threaded spline tube sleeve body is consistent with that of the linear spline tube sleeve body.
The fixing mechanism 4 includes a fixing base 41 and a fixing ring 42 fixedly connected to the fixing base 41, and the linear spline tube and the threaded spline tube are limited in the fixing ring 42.
the fixing ring sleeve 42 with the same inner diameter can realize the integrated fixation of the threaded spline tube sleeve body and the linear spline tube sleeve body, and the fixing ring sleeve 42 has a simple structure and is easy to load and fix the sleeve bodies.
In one embodiment, threaded spline outer rim 212 and linear spline outer rim 112 are locked to retaining collar 42, respectively. The lock bolt can be matched and connected through the design of the axial locking hole.
More specifically, the linear spline driving source 6 includes a linear spline driving motor 61, and a rotating shaft of the linear spline driving motor 61 is in transmission connection with the linear spline inner core 12 through a timing belt 62.
and the thread spline driving source 5 comprises a thread spline driving motor 51, and a rotating shaft of the thread spline driving motor 51 is in transmission connection with the thread spline inner core 22 through a synchronous belt 52.
With the transmission structure of the timing belt 52, the driving source can be easily mounted, and the entire spatial arrangement can be performed by the stroke of the timing belt 52.
Finally, the clamp mechanism 8 includes a driving arm 81 disposed perpendicular to the screw spline shaft 3, one end of the driving arm 81 is locked to the screw spline shaft 3, and the other end is provided with a clamping end 82. Through the size selection of the driving arm 81, the requirements of different circumferential rotation tracks of the clamping end 82 can be met, and the requirements are determined according to application conditions.
Can discover through the above description, the utility model relates to a drive arrangement of rotation type ball spline can realize the carrying on of rotation type ball spline, and the assembly operation is high-efficient succinct, and the operation is stable. The screw spline shaft has high linear displacement precision and circumferential rotation precision, and meets the requirement of operation precision. The whole structure is ingenious, and the assembly and the implementation are easy.
the above technical solutions of the present invention have been fully described, and it should be noted that the present invention is not limited by the above description, and all technical solutions formed by equivalent transformation or equivalent transformation adopted by the spirit of the present invention in the aspects of structure, method or function by those of ordinary skill in the art all fall within the protection scope of the present invention.
Claims (6)
1. a driving device of a rotary ball spline, the rotary ball spline comprising a linear spline slide cap, a threaded spline slide cap, and a screw spline shaft on which the linear spline slide cap and the threaded spline slide cap are slidably carried,
The method is characterized in that:
The thread spline sliding cap comprises a thread spline bearing outer sleeve and a thread spline inner core, the linear spline sliding cap comprises a linear spline bearing outer sleeve and a linear spline inner core,
the driving device comprises a fixing mechanism for integrally fixing the thread spline bearing outer sleeve and the linear spline bearing outer sleeve, a thread spline driving source in driving connection with the thread spline inner core, a linear spline driving source in driving connection with the linear spline inner core, and a linear guide mechanism for linearly guiding the screw spline shaft,
One end of the screw spline shaft is interfered with the linear guide mechanism, and the other end of the screw spline shaft is connected with a clamp mechanism for clamping a carrier.
2. The rotary ball spline drive of claim 1, wherein:
The linear guide mechanism comprises a linear slide rail, at least two slide seats are arranged on the linear slide rail, and bearing bodies matched and connected with the screw spline shafts are arranged on the slide seats randomly.
3. the rotary ball spline drive of claim 1, wherein:
The thread spline bearing outer sleeve comprises a thread spline pipe sleeve body and a thread spline outer edge, the linear spline bearing outer sleeve comprises a linear spline pipe sleeve body and a linear spline outer edge,
The threaded spline pipe sleeve body and the linear spline pipe sleeve body are arranged oppositely, the outer diameter of the threaded spline pipe sleeve body is consistent with that of the linear spline pipe sleeve body,
The fixing mechanism comprises a fixing base and a fixing ring sleeve fixedly matched with the fixing base, and the linear spline pipe sleeve body and the threaded spline pipe sleeve body are limited in the fixing ring sleeve.
4. a rotary ball spline drive as in claim 3, wherein:
The outer edge of the threaded spline and the outer edge of the linear spline are respectively locked with the fixing ring sleeve.
5. The rotary ball spline drive of claim 1, wherein:
The linear spline driving source comprises a linear spline driving motor, a rotating shaft of the linear spline driving motor is in transmission connection with the linear spline inner core through a synchronous belt,
The thread spline driving source comprises a thread spline driving motor, and a rotating shaft of the thread spline driving motor is in transmission connection with the thread spline inner core through a synchronous belt.
6. The rotary ball spline drive of claim 1, wherein:
The clamp mechanism comprises driving arms which are vertically and oppositely arranged with the screw spline shaft, one end of each driving arm is locked with the screw spline shaft, and the other end of each driving arm is provided with a clamping end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359297.9U CN209800664U (en) | 2019-03-20 | 2019-03-20 | Driving device of rotary ball spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359297.9U CN209800664U (en) | 2019-03-20 | 2019-03-20 | Driving device of rotary ball spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800664U true CN209800664U (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920359297.9U Active CN209800664U (en) | 2019-03-20 | 2019-03-20 | Driving device of rotary ball spline |
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| Country | Link |
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| CN (1) | CN209800664U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135590A (en) * | 2021-12-01 | 2022-03-04 | 常州市亿能机械有限公司 | Ball spline for automatic vertical filling packaging machine |
| CN114953373A (en) * | 2021-02-26 | 2022-08-30 | 住友重机械工业株式会社 | Injection molding machine |
-
2019
- 2019-03-20 CN CN201920359297.9U patent/CN209800664U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953373A (en) * | 2021-02-26 | 2022-08-30 | 住友重机械工业株式会社 | Injection molding machine |
| CN114135590A (en) * | 2021-12-01 | 2022-03-04 | 常州市亿能机械有限公司 | Ball spline for automatic vertical filling packaging machine |
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