CN201184400Y - Telescopic mechanism with straight-line guidance - Google Patents
Telescopic mechanism with straight-line guidance Download PDFInfo
- Publication number
- CN201184400Y CN201184400Y CNU200820080118XU CN200820080118U CN201184400Y CN 201184400 Y CN201184400 Y CN 201184400Y CN U200820080118X U CNU200820080118X U CN U200820080118XU CN 200820080118 U CN200820080118 U CN 200820080118U CN 201184400 Y CN201184400 Y CN 201184400Y
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- pedestal
- hole
- guide rail
- saddle
- rail
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Abstract
The utility model discloses a telescopic mechanism with linear guide, which is characterized on that a hole A is formed at the center of a pedestal A of the telescopic mechanism; the output shaft of a motor is connected with a screw through a coupling and penetrates through the hole A of the pedestal A; a hole B is formed at the center of a pedestal B, and a linear bearing is arranged in the hole B; the pedestal A and the pedestal B are arranged oppositely, and the hole A of the pedestal A and the hole B of the pedestal B have the same center; a left guide rail and a right guide rail are parallelly arranged between the pedestal A and the pedestal B in a mirror manner; a sliding saddle is clamped between the left guide rail and the right guide rail; the left guide rail is clamped in a left runner of the sliding saddle, and the right guide rail is clamped in a right rubber of the sliding saddle; the bottom surface of the sliding saddle is fixedly connected with one end of a nut; the other end of the nut is fixedly connected with a telescopic rod, which has a hollow tubular structure; a screw hole is formed at the center of the sliding saddle; the tail end of the screw penetrates through the screw hole and protrudes into the interior of the tubular telescopic rod; and the other end of the telescopic rod penetrates through the linear bearing and protrudes out of the pedestal B. The telescopic mechanism can ensure large stroke, high movement accuracy and high straightness when the telescopic rod makes linear movement.
Description
Technical field
The utility model relates to a kind of extending means, more particularly says, is meant a kind of extending means with big stroke, highi degree of accuracy, high straightness accuracy, can guarantee high kinematic accuracy, the high straightness accuracy of flexible rod in fore and aft motion.
Background technique
What extending means was generally realized is straight line motion, and the electronic cylinder of many at present employings is realized.Electronic cylinder guarantees its Location accuracy and repeatability by the precision of actuating motor and screw pair.Because leading screw can not be used for guaranteeing straight-line straightness accuracy as guide mechanism, so electronic cylinder does not generally have the straightness accuracy index, and electronic cylinder stroke range is less.In paralleling mechanism, the translation of moving platform and the straight line motion that rotatablely moves by each side chain drive realization, so the stroke of each side chain, straightness accuracy and kinematic accuracy are restricting the working space size and the kinematic accuracy of paralleling mechanism moving platform.Adopt the extending means of highi degree of accuracy, high straightness accuracy and big stroke to help improving the performance of paralleling mechanism side chain, thereby improve the complete machine performance of paralleling mechanism.
Summary of the invention
The purpose of this utility model provides a kind of extending means with straight-line guidance with big stroke, highi degree of accuracy, high straightness accuracy, and this extending means includes A pedestal 9, B pedestal 5, motor 10, saddle 1, leading screw 7, left rail 2, right guide rail 3, nut 6, flexible rod 4; The straight line motion of flexible rod 4 is to drive leading screw 7 by motor 10 to realize with the kinematic pair that nut 6 is formed; The saddle 1 that connects firmly with nut 6 has guaranteed the straightness accuracy of flexible rod motion at left rail 2, right guide rail 3 upper edge guide rail movements.The utility model extending means can guarantee big stroke, high kinematic accuracy, the high straightness accuracy of flexible rod 4 in straight line motion.
The utility model is a kind of extending means with straight-line guidance, and the center of the A pedestal 9 of this extending means is provided with the A hole, and the output shaft of motor 10 links to each other by coupling 8 with leading screw 7, and passes the A hole of A pedestal 9; There is the B hole at the center of B pedestal 5, and linear bearing 11 is installed in the B hole; A pedestal 9 is staggered relatively with B pedestal 5, and the A hole of A pedestal 9 is with concentric with the B hole of B pedestal 5, and parallel left rail 2, the right guide rail 3 of being equipped with between A pedestal 9 and the B pedestal 5, left rail 2 and right guide rail 3 mirror images installation; Engage between left rail 2 and the right guide rail 3 saddle 1 is arranged, left rail 2 is fastened in the left chute 102 of saddle 1, right guide rail 3 is fastened in the right rail 103 of saddle 1, the bottom end 101 of saddle 1 connects firmly with an end of nut 6, nut 6 the other ends and flexible rod 4 connect firmly, and flexible rod 4 is the tubular structure of hollow; The center of saddle 1 is provided with lead screw hole 104, and leading screw 7 ends pass lead screw hole 104, stretches into flexible rod 4 inside of tubular, and the other end of flexible rod 4 passes linear bearing, stretches out the B pedestal.The utility model extending means can guarantee big stroke, high kinematic accuracy, the high straightness accuracy of flexible rod in straight line motion.
The advantage of the utility model extending means is: (1) can realize long arbitrarily rectilinear path by the length of customization leading screw and linear rail.(2) can select for use the encoder of highi degree of accuracy and wide range and actuating motor composition half-closed loop control system to make extending means satisfy high-precision requirement.(3) stress performance of mechanism that adopted the symmetrical structure design optimization has improved the bearing capacity of mechanism, has increased the rigidity of mechanism.(4) member is simple, and manufacturability is good.
Description of drawings
Fig. 1 is the structural drawing of the utility model extending means.
Fig. 2 is the structural drawing of the slide block of the utility model extending means.
Among the figure: 1. saddle 101. bottom ends 102. left chute 103. right rails 104. lead screw hole 105. mounting holes
2. left rail 3. right guide rail 4. flexible rod 5.B pedestals 6. nuts 7. leading screws 8. coupling 9.A pedestals 10. motors 11. linear bearings
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Referring to seeing Fig. 1, shown in Figure 2, a kind of extending means with straight-line guidance of the present utility model includes A pedestal 9, B pedestal 5, motor 10, saddle 1, leading screw 7, left rail 2, right guide rail 3, nut 6, flexible rod 4; The center of A pedestal 9 is provided with the A hole, and the output shaft of motor 10 links to each other by coupling 8 with leading screw 7, and passes the A hole of A pedestal 9; There is the B hole at the center of B pedestal 5, and linear bearing 11 is installed in the B hole; A pedestal 9 is staggered relatively with B pedestal 5, and the A hole of A pedestal 9 is with concentric with the B hole of B pedestal 5, and parallel left rail 2, the right guide rail 3 of being equipped with between A pedestal 9 and the B pedestal 5, left rail 2 and right guide rail 3 mirror images installation; Engage between left rail 2 and the right guide rail 3 saddle 1 is arranged, left rail 2 is fastened in the left chute 102 of saddle 1, right guide rail 3 is fastened in the right rail 103 of saddle 1, the bottom end 101 of saddle 1 connects firmly with an end of nut 6, nut 6 the other ends and flexible rod 4 connect firmly, and flexible rod 4 is the tubular structure of hollow; Nut 6 is formed the feed screw nut kinematic pair with leading screw 7; The center of saddle 1 is provided with lead screw hole 104, and leading screw 7 ends pass lead screw hole 104, stretches into flexible rod 4 inside of tubular, and the other end of flexible rod 4 passes linear bearing 11, stretches out pedestal 5.
Referring to shown in Figure 2, saddle 1 is
Shape, be respectively equipped with left chute 102, right rail 103 (this left side chute 102, right rail 103 cooperation left rails 2, right guide rail 3 at its both wings, be used for saddle 1 at left rail 2, right guide rail 3 upper edge guide rail movements), its central position is provided with lead screw hole 104 (this lead screw hole 104 is used for leading screw 7 and passes through), and has mounting hole 105 (this mounting hole 105 is used for by screw one end of nut 6 being connected the bottom end 101 of saddle 1) in the outer rim of lead screw hole 104.
In the utility model, leading screw 7 is formed screw pair with nut 6.This screw pair is converted to straight line motion to rotatablely moving of motor 10 output shafts.
In the utility model, the left chute 102 on the saddle 1, right rail 103 cooperate the high straightness accuracy that has guaranteed motion with left rail 2, right guide rail 3.
In the utility model, the length of leading screw 7, left rail 2, right guide rail 3 can customize, and has realized the big stroke of extending means.
In the utility model, motor 10 is chosen the encoder and the actuating motor of highi degree of accuracy, wide range and is formed the semiclosed loop kinetic control system, realizes the high-precision motion of extending means.
Telescoping mechanism of the present utility model be applicable to have high-bearing capacity, high linearity, high-speed, high precision requirement big Stroke rectilinear motion occasion is particularly useful for parallel institution, helps the working space of enlarging mechanism. Parallel institution The translation of moving platform and rotatablely move to be driven by the rectilinear motion of each side chain and realize the size impact of rectilinear motion stroke The translation of parallel institution moving platform and rotating range, thus the working space of parallel institution affected, and straight-line Linearity affects the kinematic accuracy of parallel institution moving platform, and the bearing capacity of each side chain of parallel institution is to determine that complete machine holds The principal element of the power of carrying. It is great that parallel institution has ratio of rigidity, the kinematic accuracy advantages of higher, but its working space is little, And the kinematic accuracy of moving platform and the performance of each side chain are closely related. Parallel institution ball guide screw nat commonly used is real The rectilinear motion of existing side chain, the kinematic accuracy of side chain and rigidity are subjected to the restriction of screw pair kinematic accuracy and linearity, The configuration space of moving platform also is subjected to the impact of screw pair stroke, and therefore telescoping mechanism of the present utility model is conducive to Improve the performance of parallel institution.
Claims (4)
1, a kind of extending means with straight-line guidance is characterized in that: this extending means includes A pedestal (9), B pedestal (5), motor (10), saddle (1), leading screw (7), left rail (2), right guide rail (3), nut (6), flexible rod (4);
The center of A pedestal (9) is provided with the A hole, and the output shaft of motor (10) links to each other by coupling (8) with leading screw (7), and passes the A hole of A pedestal (9);
There is the B hole at the center of B pedestal (5), and linear bearing (11) is installed in the B hole;
A pedestal (9) and B pedestal (5) are staggered relatively, and the A hole of A pedestal (9) is concentric with the B hole of B pedestal (5), and parallel left rail (2), the right guide rail (3) of being equipped with between A pedestal (9) and the B pedestal (5), left rail (2) and the installation of right guide rail (3) mirror image; Engage between left rail (2) and the right guide rail (3) and saddle is arranged (1), left rail (2) is fastened in the left chute (102) of saddle (1), right guide rail (3) is fastened in the right rail (103) of saddle (1), the bottom end (101) of saddle (1) connects firmly with an end of nut (6), nut (6) the other end and flexible rod (4) connect firmly, and flexible rod (4) is the tubular structure of hollow;
The center of saddle (1) is provided with lead screw hole (104), and leading screw (7) end passes lead screw hole (104), stretches into flexible rod (4) inside of tubular, and the other end of flexible rod (4) passes linear bearing (11), stretches out B pedestal (5).
2, the extending means with straight-line guidance according to claim 1 is characterized in that: leading screw (7) constitutes screw pair with nut (6).
3, the extending means with straight-line guidance according to claim 1 is characterized in that: the left chute (102) on the saddle (1), right rail (103) cooperate the high straightness accuracy that has guaranteed motion with left rail (2), right guide rail (3).
4, the extending means with straight-line guidance according to claim 1 is characterized in that: motor (10) is chosen highi degree of accuracy, wide range encoder and actuating motor and is formed the half-closed loop control system, guarantees the high kinematic accuracy of mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820080118XU CN201184400Y (en) | 2008-04-22 | 2008-04-22 | Telescopic mechanism with straight-line guidance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820080118XU CN201184400Y (en) | 2008-04-22 | 2008-04-22 | Telescopic mechanism with straight-line guidance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184400Y true CN201184400Y (en) | 2009-01-21 |
Family
ID=40272139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820080118XU Expired - Fee Related CN201184400Y (en) | 2008-04-22 | 2008-04-22 | Telescopic mechanism with straight-line guidance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184400Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506138A (en) * | 2011-10-22 | 2012-06-20 | 芜湖市贺记食品有限公司 | Telescopic transmission rod |
| CN102608030A (en) * | 2011-12-23 | 2012-07-25 | 长春迪瑞医疗科技股份有限公司 | Urinary sediment analyzer optical system focus motor structure |
| CN103883694A (en) * | 2014-04-05 | 2014-06-25 | 支敏之 | Minitype spiral transmission device |
| CN104166094A (en) * | 2014-08-06 | 2014-11-26 | 宁波杜亚机电技术有限公司 | Transmission device for motor test |
| CN105972147A (en) * | 2016-07-12 | 2016-09-28 | 安徽工程大学 | Quasi zero stiffness vibration isolation platform adjustable in positive and negative stiffness |
| CN106321068A (en) * | 2016-09-05 | 2017-01-11 | 中海石油(中国)有限公司 | Underground oil casting pipe ground detection sensor pushing device |
| CN109667902A (en) * | 2019-02-01 | 2019-04-23 | 上海普英特高层设备股份有限公司 | Hand synchronous telescoping mechanism |
| CN109888970A (en) * | 2019-02-28 | 2019-06-14 | 长安大学 | A kind of linear guide rail type translation mechanism |
| CN111197643A (en) * | 2020-02-17 | 2020-05-26 | 公安部第一研究所 | High-precision linear motion mechanism |
-
2008
- 2008-04-22 CN CNU200820080118XU patent/CN201184400Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506138A (en) * | 2011-10-22 | 2012-06-20 | 芜湖市贺记食品有限公司 | Telescopic transmission rod |
| CN102608030A (en) * | 2011-12-23 | 2012-07-25 | 长春迪瑞医疗科技股份有限公司 | Urinary sediment analyzer optical system focus motor structure |
| CN103883694A (en) * | 2014-04-05 | 2014-06-25 | 支敏之 | Minitype spiral transmission device |
| CN104166094A (en) * | 2014-08-06 | 2014-11-26 | 宁波杜亚机电技术有限公司 | Transmission device for motor test |
| CN104166094B (en) * | 2014-08-06 | 2017-03-08 | 宁波杜亚机电技术有限公司 | A kind of actuating device for electromechanical testing |
| CN105972147A (en) * | 2016-07-12 | 2016-09-28 | 安徽工程大学 | Quasi zero stiffness vibration isolation platform adjustable in positive and negative stiffness |
| CN105972147B (en) * | 2016-07-12 | 2018-03-06 | 安徽工程大学 | The adjustable quasi- zero stiffness vibration-isolating platform of positive negative stiffness |
| CN106321068A (en) * | 2016-09-05 | 2017-01-11 | 中海石油(中国)有限公司 | Underground oil casting pipe ground detection sensor pushing device |
| CN106321068B (en) * | 2016-09-05 | 2019-10-11 | 中海石油(中国)有限公司 | A kind of tube and casing in downhole ground detection sensor driving means |
| CN109667902A (en) * | 2019-02-01 | 2019-04-23 | 上海普英特高层设备股份有限公司 | Hand synchronous telescoping mechanism |
| CN109888970A (en) * | 2019-02-28 | 2019-06-14 | 长安大学 | A kind of linear guide rail type translation mechanism |
| CN111197643A (en) * | 2020-02-17 | 2020-05-26 | 公安部第一研究所 | High-precision linear motion mechanism |
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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: 20090121 |