CN203883609U - High-precision linear driver - Google Patents
High-precision linear driver Download PDFInfo
- Publication number
- CN203883609U CN203883609U CN201420305494.XU CN201420305494U CN203883609U CN 203883609 U CN203883609 U CN 203883609U CN 201420305494 U CN201420305494 U CN 201420305494U CN 203883609 U CN203883609 U CN 203883609U
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- China
- Prior art keywords
- stepping motor
- motor cabinet
- intermediate connecting
- connecting shaft
- motor
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Abstract
本实用新型涉及一种高精度直线驱动器，它包括电机座、连接安装在电机座后端部的步进电机和减速器，其特征在于：所述步进电机为极限环境步进电机，其输出轴径减速器和联轴器连接一根中间连接轴，中间连接轴，经一个具有丝杠螺母运动转化结构的微分头连接一个顶套。本实用新型通过PLC、单片机等对步进电机发送指定数量脉冲，控制步进电机转动角度，从而实现高精度直线运动控制。
The utility model relates to a high-precision linear driver, which includes a motor base, a stepping motor connected and installed on the rear end of the motor base, and a reducer. The shaft diameter reducer and the shaft coupling are connected to an intermediate connecting shaft, and the intermediate connecting shaft is connected to a top sleeve through a differential head with a screw nut motion conversion structure. The utility model sends a specified number of pulses to the stepping motor through a PLC, a single-chip microcomputer, etc., and controls the rotation angle of the stepping motor, thereby realizing high-precision linear motion control.
Description
Technical field
The utility model relates to a kind of high-precision linear driver, be particularly useful for the narrow and small practical space of high-resolution control requirement, show wide application prospect in fields such as Precision Machining, precision optics, biomedical engineering, MEMS (micro electro mechanical system), and be applicable to vacuum environment.
Background technology
Linear actuator of a great variety, most widely used is linear electric motors.At present, there is the linear actuator that utilizes new material and piezo technology development, for example miniature linear actuator based on marmem, electromagnetic type linear actuator, piezoelectricity stepping linear actuator etc.But these linear actuators are all difficult to reach high-precision control requirement, although piezoelectric type linear actuator can be realized higher resolution, but internal structure complexity, volume is large, especially, in the situation that needs meet compared with heavy load and narrow installation space requirement, almost cannot realize.In many occasions that need hi-Fix, the deficiency of linear actuator is brought many difficulties, has also affected experiment effect and the quality of production simultaneously.
Summary of the invention
In order to overcome the not high enough deficiency of current linear actuator control precision, the utility model provides a kind of high-precision linear driver, and this linear actuator can not only reach high-precision control requirement, and is applicable to small space and vacuum environment.For needing the straight-line various occasions of high accuracy that a kind of new driver is provided.
For achieving the above object, design of the present utility model is:
Eliminate the errors of principles, realize the high accuracy control of driver, and structure simplifies compactness, possess certain interchangeability.
Driver adopts cylindrical-shaped structure, has saved to greatest extent space, arranges successively and transmit the part of motion on axis, makes the integral structure layout of driver compacter, reasonable.Driver by rear end stepping motor as power source, through carrying after decelerator deceleration, by the rotation of shaft coupling band moving axis, then utilize the structure of differential head inner classes like " screw mandrel ", " nut ", successfully on axis, be converted into the rectilinear motion needing by rotatablely moving.Changing after motion mode through decelerator deceleration and differential head, realize high-precision rectilinear motion.The guiding of the precision that differential head is high and Miniature ball guide rail is also for the high accuracy control of driver provides favourable guarantee.For the requirement of different driving power, need to change the motor of different model and decelerator time, only need to change the size of motor cabinet rear end, strengthen like this parts interchangeability of driver.
according to above-mentioned utility model design, the utility model adopts technology as follows:
1, a kind of high-precision linear driver, comprise motor cabinet, be mounted on stepping motor and the decelerator of motor cabinet rearward end, it is characterized in that: described stepping motor is extreme environment stepping motor, its output diameter of axle decelerator is connected an intermediate connecting shaft with shaft coupling, intermediate connecting shaft connects a top cover through a differential head with feed screw nut sports conversion structure.
2, described motor cabinet is the cylindrical body with ladder, and its rear end is by the stepping motor of soket head cap screw connecting band decelerator; Motor cabinet rear portion inner chamber is installed shaft coupling, and two bearings of anterior inner chamber mounting support intermediate connecting shaft, bearing is by an end cap axial location, and end cap is fixedly connected with motor cabinet front end by screw.
The differential head 3, with feed screw nut's sports conversion structure is: a rhizoid thick stick rear end endoporus spins by screw thread and intermediate connecting shaft front end, has spring washer realization screw and do not get loose between the two; A described and nut screws, and nut is fixedly connected with a sleeve pipe by a connector, and sleeve pipe and a spherical guide slip cap are joined, and spherical guide is fixed on the front end face of motor cabinet by a guide rail pad; Described top cover rearward end endoporus and leading screw leading section slip cap are joined, and top cover rear end is fixedly connected with connector.
the utility model compared with prior art, has following apparent substantive distinguishing features and technological progress:
The beneficial effects of the utility model are to realize efficient rotational motion to linear motion, reach the control of high accuracy rectilinear motion, compact conformation, and volume is little.And the stepping motor that the utility model adopts has interchangeability, has high-adaptability for different index requests.
Brief description of the drawings
Fig. 1 is activation configuration figure in the design embodiment
Fig. 2 is driver outside drawing in the design embodiment
1. top covers in figure, 2. differential head, 3. end cap, 4. bearing, 5. shaft coupling, 6. decelerator, 7. stepping motor, 8. intermediate connecting shaft, 9. motor cabinet, 10. track base, 11. spring washers, 12. connectors, 13. spherical guides, 14. soket head cap screws.
Embodiment
Details are as follows by reference to the accompanying drawings for preferred embodiment of the present utility model
:
Embodiment mono-:
Referring to figure mono-and figure bis-, this high accuracy comprises motor cabinet (9), is mounted on stepping motor (7) and the decelerator (6) of motor cabinet (9) rearward end, it is characterized in that: described stepping motor (7) is extreme environment stepping motor, its output diameter of axle decelerator (6) is connected an intermediate connecting shaft (8) with shaft coupling (5), and intermediate connecting shaft (8) connects a top cover (1) through a differential head (2) with feed screw nut sports conversion structure.
Embodiment bis-:
The present embodiment and embodiment mono-are basic identical, and special feature is as follows: described motor cabinet (9) is the cylindrical body with ladder, and its rear end is by the stepping motor (7) of soket head cap screw (14) connecting band decelerator (6); Motor cabinet (9) rear portion inner chamber is installed shaft coupling (5), and two bearings (4) of anterior inner chamber mounting support intermediate connecting shaft (8), bearing (4) is by an end cap (3) axial location, and end cap (3) is fixedly connected with motor cabinet (9) front end by screw.
The differential head (2) of the described feed screw nut's of having sports conversion structure is: rhizoid thick stick (2-1) rear end endoporus spins by screw thread and intermediate connecting shaft (8) front end, has spring washer (11) realization screw and do not get loose between the two; Described (2-1) screws with a nut (2-2), nut (2-2) is fixedly connected with a sleeve pipe (2-3) by a connector (12), sleeve pipe (2-3) is joined with a spherical guide (13) slip cap, and spherical guide (13) is fixed on the front end face of motor cabinet (9) by a guide rail pad (10); Described top cover (1) rearward end endoporus and leading screw (2-1) leading section slip cap are joined, and top cover (1) rear end is fixedly connected with connector (12).
Embodiment tri-:
Shown in Fig. 1, this high-precision linear driver, supplies actuating force by stepping motor (7).By PLC, single-chip microcomputer etc., stepping motor is sent to specified quantity pulse, stepping motor is turned an angle, slow down through decelerator (6), output to shaft coupling (5), drive connecting axle (8) to rotate.Connecting axle (8) is threaded connection with differential head (2) threaded rod, and provides pretightning force by spring washer (11).In spherical guide (13) assembly, guide rod is fixed on track base (10).Differential head (2) outer ring and spherical guide (13) are connected by holding screw by connector (12), and top cover (1) is to be threaded connection on connector (12).Because differential head (2) threaded rod has been locked axial motion, and differential head (2) outer ring has been locked circumferential rotation, in the time that jack shaft drives differential head (2) threaded rod to rotate, differential head (2) outer ring, connector (12) and top cover (1) will move along axis.
Realize the calculation specifications of high accuracy control:
According to the parameter of the extreme environment stepping motor of selecting, stepping motor is two-phase hybrid motor, 200 steps/circle, and stepper motor driver, by frequency division, improves the resolution of motor.The speed reducing ratio of supporting decelerator is 5:1.The scale division value of high-resolution differential head is 0.01mm, i.e. 0.5mm/ circle.
Obtain driver theoretical resolution computing formula:
In formula, n is driver divider ratio.
Claims (3)
1. a high-precision linear driver, comprise motor cabinet (9), be mounted on stepping motor (7) and the decelerator (6) of motor cabinet (9) rearward end, it is characterized in that: described stepping motor (7) is extreme environment stepping motor, its output diameter of axle decelerator (6) is connected an intermediate connecting shaft (8) with shaft coupling (5), and intermediate connecting shaft (8) connects a top cover (1) through a differential head (2) with feed screw nut sports conversion structure.
2. high-precision linear driver according to claim 1, is characterized in that: described motor cabinet (9) is the cylindrical body with ladder, and its rear end is by the stepping motor (7) of soket head cap screw (14) connecting band decelerator (6); Motor cabinet (9) rear portion inner chamber is installed shaft coupling (5), and two bearings (4) of anterior inner chamber mounting support intermediate connecting shaft (8), bearing (4) is by an end cap (3) axial location, and end cap (3) is fixedly connected with motor cabinet (9) front end by screw.
3. high-precision linear driver according to claim 1, it is characterized in that: described in there is feed screw nut's sports conversion structure differential head (2) be: rhizoid thick stick (2-1) rear end endoporus spins by screw thread and intermediate connecting shaft (8) front end, has spring washer (11) to realize between the two and screws and do not get loose; Described (2-1) screws with a nut (2-2), nut (2-2) is fixedly connected with a sleeve pipe (2-3) by a connector (12), sleeve pipe (2-3) is joined with a spherical guide (13) slip cap, and spherical guide (13) is fixed on the front end face of motor cabinet (9) by a guide rail pad (10); Described top cover (1) rearward end endoporus and leading screw (2-1) leading section slip cap are joined, and top cover (1) rear end is fixedly connected with connector (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305494.XU CN203883609U (en) | 2014-06-10 | 2014-06-10 | High-precision linear driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305494.XU CN203883609U (en) | 2014-06-10 | 2014-06-10 | High-precision linear driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883609U true CN203883609U (en) | 2014-10-15 |
Family
ID=51684075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420305494.XU Expired - Fee Related CN203883609U (en) | 2014-06-10 | 2014-06-10 | High-precision linear driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203883609U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106899191A (en) * | 2017-04-08 | 2017-06-27 | 贵州大学 | A kind of governor motion and adjusting method for adjusting motor output shaft rotation |
| CN107943123A (en) * | 2017-11-02 | 2018-04-20 | 中国科学院长春光学精密机械与物理研究所 | The control system and control method of a kind of force actuator |
-
2014
- 2014-06-10 CN CN201420305494.XU patent/CN203883609U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106899191A (en) * | 2017-04-08 | 2017-06-27 | 贵州大学 | A kind of governor motion and adjusting method for adjusting motor output shaft rotation |
| CN107943123A (en) * | 2017-11-02 | 2018-04-20 | 中国科学院长春光学精密机械与物理研究所 | The control system and control method of a kind of force actuator |
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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: 20141015 Termination date: 20160610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |