CN201944214U - Lifting and rotating mechanism - Google Patents
Lifting and rotating mechanism Download PDFInfo
- Publication number
- CN201944214U CN201944214U CN2010205053040U CN201020505304U CN201944214U CN 201944214 U CN201944214 U CN 201944214U CN 2010205053040 U CN2010205053040 U CN 2010205053040U CN 201020505304 U CN201020505304 U CN 201020505304U CN 201944214 U CN201944214 U CN 201944214U
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- China
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- rotating shaft
- lifting
- shaft base
- elevating bracket
- fixed
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Abstract
The utility model relates to a lifting and rotating mechanism including a rotating shaft system, a lifting shaft system and an extension spring; the rotating shaft base of the rotating shaft system is connected to the lifting base of the lifting shaft system via a ballscrew mechanism and a lifting straight line guide rail mechanism; One end of the extension spring is fixed on the lifting base of the lifting shaft system and the other end of the extension spring is connected to the rotating shaft base of the rotating shaft system. The extension spring adopted in the utility model can balance the gravity of the rotating shaft system to eliminate the axial gaps between the roller nut and the ballscrew, the ballscrew and the corner contact bearing and the radial ball bearing, as well as the straight line guide rail and the slide block respectively, thereby improving the position accuracy of lifting, reducing the running resistance of motors and accelerating the moving speed of lifting as well.
Description
Technical field
The utility model relates to that used liter revolves mechanism in a kind of mechanical automation equipment, the small distance of particularly a kind of highi degree of accuracy, high-speed operation, back and forth rises and revolves mechanism.
Background technique
At present, the small distance that uses in mechanical automation equipment, high-speed, high-precision reciprocal liter revolve mechanism and comprise rotary axis and lifting axis system, and the rotating shaft base of rotary axis is connected by ball screw framework and lifting linear rail mechanism with the elevating bracket of lifting axis system.Flexibly connect by one group of bearing between the rotating shaft tube of rotary axis and the rotating shaft base, flexibly connect by one group of bearing between the ball screw of lifting axis system and the elevating bracket, flexibly connect by one group of slide block between each linear rail of lifting axis system and the rotating shaft base of rotary axis, the used component of each kinematic pair all need to adopt little quality, high-accuracy component, the cost height, and because each component needs high machining accuracy, often processing charges is very high.Because the action of gravity of rotary axis, increased axial clearance between each parts and the frictional force between each parts, thereby reduced the positional accuracy and the speed of rotary axis lifting.
Summary of the invention
The technical problems to be solved in the utility model provides a kind ofly can realize not having the gap, the liter of high speed lifting revolves mechanism.
In order to solve the problems of the technologies described above, liter of the present utility model revolves mechanism and comprises rotary axis, lifting axis system, extension spring; The rotating shaft base of described rotary axis is connected by ball screw framework and lifting linear rail mechanism with the elevating bracket of lifting axis system; One end of extension spring is fixed on the elevating bracket of lifting axis system, and the other end is connected on the rotating shaft base of rotary axis.
Described rotary axis comprises running shaft bucket, rotating shaft base, revolution motor; The running shaft bucket is dynamically connected by two angular contact bearings and zanjon bearing and rotating shaft base; The zanjon bearing is installed in the position of leaning on the bottom between two angular contact bearings; Revolution motor is fixed on the rotating shaft base, and revolution motor is connected with the running shaft bucket by transmission system.
Be fixed with the roller screw on the described rotating shaft base; Lifting axis system comprises elevating bracket, ball screw, motor; The moment input end of ball screw adopts two angular contact bearings and elevating bracket to be dynamically connected, and another cantilever end adopts radial ball bearing and elevating bracket to be dynamically connected; Motor is connected with ball screw by transmission system; Roller screw and ball screw are dynamically connected.
Be fixed with two linear rails on the described elevating bracket, each linear rail is dynamically connected with two groups of slide blocks that are fixed on the rotating shaft base.
One end of extension spring is fixed on the elevating bracket of lifting axis system, the other end is connected on the rotating shaft base of rotary axis, can balance the gravity of rotary axis, eliminated between roller screw and the ball screw, the axial clearance between ball screw and angular contact bearing, the radial ball bearing, between linear rail and the slide block, improved the positional accuracy of lifting, reduced simultaneously motor running resistance, accelerated the movement velocity of lifting.
In rotary axis, owing between two angular contact bearings, clamp a bite zanjon bearing, caused and crossed constraint by the bottom, make the output accuracy of running shaft bucket obtain increasing exponentially, improved rotary driving force square moment of torsion radially simultaneously.
In lifting axis system, because the moment input end of ball screw adopts a pair of angular contact bearing to support, another cantilever end adopts radial ball bearing to support, and causes constraint, has improved the straightness accuracy and the repetitive positioning accuracy of ball screw elevating movement.
Each linear rail on the elevating bracket is dynamically connected with two groups of slide blocks that are fixed on the rotating shaft base, causes constraint, has realized the low-cost and high-precision motion.
The utility model adopted the method for constraint, under the identical condition of component precision, had improved kinematic accuracy.
Description of drawings:
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 revolves the plan view of mechanism for liter of the present utility model.
Fig. 2 is the plan view of Fig. 1.
Embodiment
As shown in Figure 1, 2, liter of the present utility model revolves mechanism and comprises rotary axis 1, and lifting axis is 3, extension spring 4; The rotating shaft base 102 and the lifting axis of described rotary axis 1 is that 3 elevating bracket 301 is connected by ball screw framework and lifting linear rail mechanism, perhaps adopts other forms of elevator mechanism to connect.
It is that the other end is connected on the rotating shaft base 102 of rotary axis 1 on 3 the elevating bracket 301 that one end of extension spring 4 is fixed in lifting axis.
Described rotary axis 1 comprises running shaft bucket 101, rotating shaft base 102,112, four groups of slide blocks of roller screw (two slide blocks 121,131 shown in the figure), revolution motor 111; Running shaft bucket 101 is dynamically connected with rotating shaft base 102 by a pair of angular contact bearing 105,109 and zanjon bearing 106; Zanjon bearing 106 is installed in the position of leaning on the bottom between the angular contact bearing 105,109; The outer ring of gland 104 angle of pinching contact bearing 105,109 and zanjon bearing 106 on rotating shaft base 102; The inner ring of bearing spacer 107 strut angle contact bearings 105,109 and zanjon bearing 106; By bearing locking nut 103 running shaft bucket 101 is assembled on the rotating shaft base 102; Roller screw 112 is fixed on the rotating shaft base 102; Two groups of slide blocks are fixed on the rotating shaft base 102 and linear rail 311 corresponding positions, from top to bottom evenly distribute, and two groups of slide blocks are fixed on the rotating shaft base 102 and linear rail 321 corresponding positions, from top to bottom evenly distribute.Revolution motor 111 is fixed on the rotating shaft base 102, and revolution motor 111 is connected with flute profile belt wheel 108 on being fixed in running shaft bucket 101 by flute profile belt 110.Revolution motor 111 is realized rotatablely moving by flute profile belt 110 and flute profile belt wheel 108 driven rotary axle buckets 101; Revolution motor 111 can also adopt gear drive or other driving mechanisms to be connected with running shaft bucket 101.
Described lifting axis is 3 to comprise elevating bracket 301, ball screw 304, leading screw fixed bearing block 303, supporting bearing base 305, linear rail 311,321, motor 302; Ball screw 304 is dynamically connected with elevating bracket 301 by the radial ball bearing 308 that is installed in the angular contact bearing 306,307 on the leading screw fixed bearing block 303 and be installed on the supporting bearing base 305; Motor 302 drives ball screws 304 by flute profile belt wheel 309, flute profile belt 310 and flute profile belt wheel 311 and rotates, and moves up and down thereby drive ball screw 112, and roller screw 112 motion driven rotary axles are 1 to do elevating movement.Motor 302 can also adopt other modes to drive ball screw 304 and rotate.In the elevating movement process, two groups of slide blocks slide along linear rail 311; Two groups of slide blocks slide along linear rail 321 in addition, and the running shaft bucket has been realized rotation, lifting two-dimensional motion like this.
The utility model is not limited to above-mentioned mode of execution, adopts extension spring to be connected between the elevating bracket of the rotating shaft base of every rotary axis and lifting axis system, utilizes the Spring balanced of extension spring to fall the gravity of rotary axis, all is intended within the protection domain at the utility model.
Claims (4)
1. one kind rises and revolves mechanism, comprises rotary axis (1), lifting axis system (3); The rotating shaft base (102) of rotary axis (1) is connected by ball screw framework and lifting linear rail mechanism with the elevating bracket (301) of lifting axis system (3); It is characterized in that also comprising extension spring (4); One end of extension spring (4) is fixed on the elevating bracket (301) of lifting axis system (3), and the other end is connected on the rotating shaft base (102) of rotary axis (1).
2. liter according to claim 1 revolves mechanism, it is characterized in that described rotary axis (1) comprises running shaft bucket (101), rotating shaft base (102), revolution motor (111); Running shaft bucket (101) is dynamically connected by two angular contact bearings and zanjon bearing and rotating shaft base (102); The zanjon bearing is installed in the position of leaning on the bottom between two angular contact bearings; Revolution motor (111) is fixed on the rotating shaft base (102), and revolution motor (111) is connected with running shaft bucket (101) by transmission system.
3. liter according to claim 1 revolves mechanism, it is characterized in that being fixed with on the described rotating shaft base (102) roller screw (112); Lifting axis system (3) comprises elevating bracket (301), ball screw (304), motor (302); The moment input end of ball screw (304) adopts two angular contact bearings and elevating bracket (301) to be dynamically connected, and another cantilever end adopts radial ball bearing and elevating bracket (301) to be dynamically connected; Motor (302) is connected with ball screw (304) by transmission system; Roller screw (112) is dynamically connected with ball screw (304).
4. liter according to claim 1 revolves mechanism, it is characterized in that being fixed with on the described elevating bracket (301) two linear rails, and each linear rail is dynamically connected with two groups of slide blocks that are fixed on the rotating shaft base (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205053040U CN201944214U (en) | 2010-08-26 | 2010-08-26 | Lifting and rotating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205053040U CN201944214U (en) | 2010-08-26 | 2010-08-26 | Lifting and rotating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944214U true CN201944214U (en) | 2011-08-24 |
Family
ID=44471557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205053040U Expired - Fee Related CN201944214U (en) | 2010-08-26 | 2010-08-26 | Lifting and rotating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944214U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772496A (en) * | 2018-07-09 | 2018-11-09 | 河南宏源车轮股份有限公司 | A kind of lifting feeding device |
| CN109142369A (en) * | 2018-07-23 | 2019-01-04 | 杭州慧知连科技有限公司 | A kind of chemical fiber spinning cake appearance delection device |
-
2010
- 2010-08-26 CN CN2010205053040U patent/CN201944214U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772496A (en) * | 2018-07-09 | 2018-11-09 | 河南宏源车轮股份有限公司 | A kind of lifting feeding device |
| CN108772496B (en) * | 2018-07-09 | 2024-01-26 | 宏源精工车轮股份有限公司 | Lifting feeding device |
| CN109142369A (en) * | 2018-07-23 | 2019-01-04 | 杭州慧知连科技有限公司 | A kind of chemical fiber spinning cake appearance delection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20170826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |