CN216991984U - Linear driving assembly based on friction transmission and five-axis double-arm double-section manipulator - Google Patents
Linear driving assembly based on friction transmission and five-axis double-arm double-section manipulator Download PDFInfo
- Publication number
- CN216991984U CN216991984U CN202220694674.6U CN202220694674U CN216991984U CN 216991984 U CN216991984 U CN 216991984U CN 202220694674 U CN202220694674 U CN 202220694674U CN 216991984 U CN216991984 U CN 216991984U
- Authority
- CN
- China
- Prior art keywords
- friction
- belt
- roller
- friction belt
- drive assembly
- 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.)
- Active
Links
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model belongs to the technical field of manipulators, and in a linear driving assembly based on friction transmission and a five-axis double-arm double-section manipulator, the structure is optimized, on one hand, a friction belt is fixed in the extending direction of a motion guide rail seat, and on the other hand, a friction roller which is in rolling connection with the friction belt is fixed on an output shaft of a power driving group; wherein, support through pressing the friction gyro wheel on the friction belt to design for frictional contact between friction gyro wheel and the friction belt, and then when power drive group drove the friction gyro wheel and rotate, realized that the friction gyro wheel drove power drive group and steadily rolled along the orbit of friction belt. Therefore, compared with the prior art, the linear driving assembly has the advantages of high efficiency, direct driving, large transmission power and the like, and has no structural power loss by adopting a friction transmission mode; meanwhile, the noise generated by meshing between the traditional gears during transmission is reduced, and the noise is reduced from the source.
Description
Technical Field
The utility model belongs to the technical field of manipulators, and particularly relates to a linear driving assembly based on friction transmission and a five-axis double-arm double-section manipulator.
Background
The five-axis double-arm double-section manipulator is a machine specially equipped for injection molding production automation, and plays an extremely important role in the aspects of improving the production efficiency of an injection molding machine, stabilizing the product quality, reducing the rejection rate, reducing the production cost, enhancing the competitiveness of enterprises and the like.
The five-axis double-arm double-section manipulator can reduce heavy physical labor, improve labor conditions and realize safe production; the automatic production equipment can simulate partial functions of human upper limbs and can be automatically controlled to convey products or hold tools to perform production operation according to preset requirements.
At present, distance conveying of a five-axis double-arm double-section manipulator for loads is usually realized by a gear and rack transmission matched driving mode. In the actual use process, the problems of high machining precision requirement of mechanical parts and noise in operation exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a linear driving assembly based on friction transmission and a five-axis double-arm double-joint manipulator, and aims to solve the technical problems that the machining precision requirement of mechanical parts is high and the operation is noisy when the five-axis double-arm double-joint manipulator in the prior art adopts a gear and rack transmission to be matched with a driving mode.
To achieve the above object, one embodiment of the present invention provides a linear driving assembly based on friction transmission, including:
the moving guide rail seat is fixedly provided with a friction belt along the extending direction of the moving guide rail seat;
the power driving group is slidably mounted on the motion guide rail seat and is provided with a friction roller which is in rolling connection with the friction belt;
the friction roller is pressed against the friction belt, and meanwhile, the friction roller and the friction belt are in friction contact with each other, so that the friction roller rolls along the track of the friction belt stably.
Optionally, the frictional contact between the friction roller and the friction belt is a surface contact.
Optionally, a plurality of fitting contact surfaces for making frictional contact with the friction belt are formed on the outer circumferential surface of the friction roller at intervals.
Optionally, the center of the friction roller is used as a circle center, and a plurality of fit flat teeth with the same structure are uniformly distributed along the circumferential direction of the friction roller; the outer end edge plane of the fitting flat tooth is arranged to form the fitting contact surface.
Optionally, the cross section of the fitting flat tooth is trapezoidal or rectangular.
Optionally, the power driving group is further provided with a belt tensioning device in rolling connection with the friction belt; the belt tensioning device is pressed against the friction belt, so that the friction belt is tightly attached to the friction roller.
Optionally, the belt tensioning device comprises a first tensioning wheel and a second tensioning wheel which are rotatably arranged at the left side and the right side of the friction roller; the friction belt sequentially bypasses the first tensioning wheel, the friction roller and the second tensioning wheel; the first tension wheel and the second tension wheel are pressed against the friction belt and rotate along with the movement of the friction belt.
Optionally, each of the first tensioning wheel and the second tensioning wheel is provided with a limiting groove which is concave inwards and is matched with the width of the friction belt, and the friction belt moves in the limiting groove of the first tensioning wheel and the second tensioning wheel.
Optionally, the moving guide rail seat is fixedly provided with a slide rail along an extending direction thereof, and the power driving group is provided with a slide seat which is slidably sleeved on the slide rail; the sliding seat drives the power driving group to move along the sliding rail of the moving guide rail seat.
One or more technical solutions in the friction transmission based linear driving assembly provided by the embodiment of the present invention at least have one of the following technical effects: in the linear driving component based on friction transmission, the structure is optimized, on one hand, a friction belt is fixed in the extending direction of the motion guide rail seat, and on the other hand, a friction roller which is in rolling connection with the friction belt is fixed on an output shaft of the power driving group; wherein, support through pressing the friction gyro wheel on the friction belt to design for frictional contact between friction gyro wheel and the friction belt, and then when power drive group drove the friction gyro wheel and rotate, realized that the friction gyro wheel drove power drive group and steadily rolled along the orbit of friction belt. Therefore, compared with the prior art, the linear driving assembly has the advantages of high efficiency, direct driving, large transmission power and the like, and has no structural power loss by adopting a friction transmission mode; meanwhile, the noise generated by meshing between the traditional gears during transmission is reduced, and the noise is reduced from the source.
In order to achieve the above object, another embodiment of the present invention provides a five-axis double-arm double-joint robot, which includes the above linear driving assembly based on friction transmission.
One or more technical solutions in the five-axis double-arm double-section manipulator provided by the embodiment of the utility model have at least one of the following technical effects: the five-axis double-arm double-section manipulator has no structural power loss by applying the linear driving assembly based on friction transmission, and has the advantages of high efficiency, direct driving, large transmission power and the like; meanwhile, the noise generated by meshing between the traditional gears during transmission is reduced, and the noise is reduced from the source.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a perspective view of a friction drive based linear drive assembly provided by the present invention.
Fig. 2 is a bottom view of a friction drive based linear drive assembly provided by the present invention.
Fig. 3 is a schematic structural diagram of a power driving unit provided by the utility model.
Fig. 4 is a schematic structural diagram of a five-axis double-arm double-joint manipulator provided by the utility model.
Wherein, in the figures, the respective reference numerals:
100. a linear drive assembly based on friction drive;
200. a moving guide rail seat; 210. Rubbing the belt; 220. A slide rail;
300. a power drive group; 310. Rubbing the roller; 311. Fitting the contact surface;
312. fitting flat teeth; 320. A belt tensioner; 321. A first tensioning wheel;
322. a second tensioning wheel; 323. A limiting groove; 330. A slide carriage.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.
In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings only for the convenience of describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In one embodiment of the present invention, as shown in fig. 1-2, a friction drive based linear drive assembly 100 is provided, comprising:
the moving guide rail seat 200 is fixedly provided with a friction belt 210 along the extending direction of the moving guide rail seat 200;
the power driving set 300 is slidably mounted on the motion guide rail seat 200, and the power driving set 300 is provided with a friction roller 310 in rolling connection with the friction belt 210;
the friction roller 310 is pressed against the friction belt 210, and meanwhile, the friction roller 310 and the friction belt 210 are in frictional contact with each other, so that the friction roller 310 smoothly rolls along the track of the friction belt 210.
Specifically, in this embodiment, the power driving unit 300 is movably mounted on the moving rail seat 200, and the friction roller 310 and the friction belt 210 are connected with each other through friction transmission to ensure stable connection therebetween. During operation, the power driving unit 300 drives the friction roller 310 to rotate or stop, and when the rotation position of the friction roller 310 is changed, the friction roller 310 rolls along the track of the friction belt 210 stably, so that the power driving unit 300 slides on the motion guide rail seat 200.
It can be seen that, in the linear driving assembly based on friction transmission according to the present invention, the structure is optimized, on one hand, the friction belt 210 is fixed in the extending direction of the moving rail base 200, and on the other hand, the friction roller 310 in rolling connection with the friction belt 210 is fixed on the output shaft of the power driving set 300; the friction roller 310 is pressed against the friction belt 210, and the friction roller 310 and the friction belt 210 are designed to be in friction contact, so that when the power driving set 300 drives the friction roller 310 to rotate, the friction roller 310 drives the power driving set 300 to stably roll along the track of the friction belt 210. Therefore, compared with the prior art, the linear driving assembly has the advantages of high efficiency, direct driving, large transmission power and the like, and has no structural power loss by adopting a friction transmission mode; meanwhile, the noise generated by meshing between the traditional gears during transmission is reduced, and the noise is reduced from the source.
In another embodiment of the present invention, as shown in fig. 1 to 2, the frictional contact between the friction roller 310 and the friction belt 210 is a surface contact.
Specifically, in the present embodiment, since the frictional contact between the friction roller 310 and the friction belt 210 is a surface contact, and the actual contact area between the friction roller 310 and the friction belt 210 becomes large, a larger frictional force can be obtained without sacrificing wear resistance. Meanwhile, the friction roller 310 and the friction belt 210 are in surface contact, so that the phenomenon of slipping when the friction roller 310 rolls on the friction belt 210 is effectively prevented, the connection is reliable, and the transmission is stable.
In another embodiment of the present invention, as shown in fig. 1 to 3, a plurality of contact surfaces 311 for contacting the friction belt 210 are formed at intervals on the outer circumferential surface of the friction roller 310.
Specifically, in the present embodiment, the plurality of contact surfaces 311 are formed at intervals on the outer circumferential surface of the friction roller 310, so that during the rolling process of the friction roller 310 along the track of the friction belt 210, the friction roller 310 rotates while continuously and stably maintaining a large-area friction contact with the friction belt 210 by using the plurality of contact surfaces 311, thereby improving the stability of the rolling process of the friction roller 310 on the friction belt 210. Further, when the contact surface 311 is completely engaged with the friction belt 210, the contact surface 311 is in parallel contact with the friction belt 210, so that the contact area between the contact surface 311 and the friction belt 210 can be increased to the maximum, and the frictional force between the contact surface 311 and the friction belt 210 is increased.
In another embodiment of the present invention, as shown in fig. 1 to 3, the friction roller 310 has a center as a circle center, and a plurality of attaching flat teeth 312 with the same structure are uniformly distributed along a circumferential direction; the outer end edge plane of the fitting flat tooth 312 is arranged to form the fitting contact surface 311.
Wherein, the cross section of the fitting flat tooth 312 is trapezoidal or rectangular.
Specifically, in this embodiment, since the cross section of the attaching flat tooth 312 is trapezoidal or rectangular, the outer end edge of the attaching flat tooth 312 is in a shape of planar arrangement, and the attaching contact surface 311 correspondingly formed at the outer end edge of the attaching flat tooth 312 is also in a shape of planar arrangement, so as to enlarge the actual contact area between the friction roller 310 and the friction belt 210, and prevent the friction roller 310 from slipping when rolling on the friction belt 210.
In another embodiment of the present invention, as shown in fig. 1 to 3, the power driving unit 300 is further provided with a belt tensioner 320 in rolling connection with the friction belt 210; the belt tensioning device 320 presses against the friction belt 210, so that the friction belt 210 is tightly attached to the friction roller 310.
Specifically, in this embodiment, the belt tensioning device 320 is disposed to apply force to the friction belt 210, so that the tension of the friction belt 210 is effectively adjusted to a tightening state, and it is further ensured that the friction belt 210 always abuts against the friction roller 310, a friction coefficient between the friction roller 310 and the friction belt 210 is increased, and the friction roller 310 can be effectively prevented from slipping on the friction belt 210, thereby improving the stability of the whole linear driving assembly and ensuring the normal and continuous operation of the device.
In another embodiment of the present invention, as shown in fig. 1 to 3, the belt tensioner 320 includes a first tension pulley 321 and a second tension pulley 322 rotatably disposed at the left and right sides of the friction roller 310; the friction belt 210 sequentially passes around the first tension pulley 321, the friction roller 310, and the second tension pulley 322; the first tension pulley 321 and the second tension pulley 322 press against the friction belt 210 and rotate with the movement of the friction belt 210.
Specifically, in this embodiment, the friction belt 210 is wound around the first tension pulley 321 and the second tension pulley 322, and the first tension pulley 321 and the second tension pulley 322 jointly tension the friction belt 210, so that the friction belt 210 maintains a certain tension. The friction roller 310 is located between the first tension roller 321 and the second tension roller 322, so as to ensure that the friction belt 210 always abuts against the friction roller 310. Meanwhile, the first tensioning wheel 321 and the second tensioning wheel 322 can keep rotating relatively, so that the friction belt 210 can run smoothly when passing through the first tensioning wheel 321 and the second tensioning wheel 322.
In another embodiment of the present invention, as shown in fig. 1 to 3, a limiting groove 323 adapted to the width of the friction belt 210 is recessed in each of the first tension pulley 321 and the second tension pulley 322, and the friction belt 210 moves in the limiting groove 323 of the first tension pulley 321 and the second tension pulley 322.
Specifically, in this embodiment, the limiting groove 323 can limit two sides of the friction belt 210 in the width direction, so that the relative positions of the friction belt 210 on the first tensioning pulley 321 and the second tensioning pulley 322 are kept consistent, the phenomenon that the friction belt 210 deviates is avoided, the friction belt 210 is ensured to run stably, manual adjustment during shutdown is not required, and the effect of improving the production operation efficiency is achieved.
In another embodiment of the present invention, as shown in fig. 1, the moving rail seat 200 is fixedly provided with a sliding rail 220 along an extending direction thereof, and the power driving unit 300 is provided with a sliding seat 330 slidably sleeved on the sliding rail 220; the sliding base 330 drives the power driving unit 300 to move along the sliding rail 220 of the moving rail base 200.
Specifically, in this embodiment, the slide 330 is matched with the slide rail 220 with high precision by arranging a slider, and during application, the slide 330 is used to form a stable and smooth combination with the slide rail 220, so that the action of the slider not only effectively improves the flexibility of the slide 330 during movement on the slide rail 220, but also ensures that the slide 330 does not become flexible and fails during the operation of the slide rail 220, thereby ensuring the stable operation of the power driving set 300 on the motion guide rail seat 200.
In another embodiment of the present invention, as shown in fig. 4, a five-axis double-arm two-joint robot is provided, which comprises the linear drive assembly 100 based on friction transmission.
Specifically, in this embodiment, the five-axis double-arm double-section manipulator of the present invention has no structural power loss by applying the linear driving assembly 100 based on friction transmission, and has the advantages of high efficiency, direct driving, large transmission power, etc.; meanwhile, the noise generated by meshing between the traditional gears during transmission is reduced, and the noise is reduced from the source.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A friction drive based linear drive assembly comprising:
the moving guide rail seat is fixedly provided with a friction belt along the extending direction of the moving guide rail seat;
the power driving group is slidably mounted on the motion guide rail seat and is provided with a friction roller which is in rolling connection with the friction belt;
the friction roller is pressed against the friction belt, and meanwhile, the friction roller and the friction belt are in friction contact with each other, so that the friction roller rolls along the track of the friction belt stably.
2. A friction drive based linear drive assembly as claimed in claim 1 wherein: the friction contact between the friction roller and the friction belt is surface contact.
3. A friction drive based linear drive assembly according to claim 2 wherein: and a plurality of joint contact surfaces which are in friction contact with the friction belt are formed on the outer circumferential surface of the friction roller at intervals.
4. A friction drive based linear drive assembly according to claim 3 wherein: the friction roller takes the center as the circle center, and a plurality of fit flat teeth with the same structure are uniformly distributed along the circumferential direction of the friction roller; the outer end edge plane of the fitting flat tooth is arranged to form the fitting contact surface.
5. A friction drive based linear drive assembly according to claim 4 wherein: the cross section of the fitting flat tooth is trapezoidal or rectangular.
6. A linear drive assembly based on a friction drive according to any of claims 1 to 5, characterized in that: the power driving group is also provided with a belt tensioning device in rolling connection with the friction belt; the belt tensioning device is pressed against the friction belt, so that the friction belt is tightly attached to the friction roller.
7. A friction drive based linear drive assembly according to claim 6 wherein: the belt tensioning device comprises a first tensioning wheel and a second tensioning wheel which are rotatably arranged on the left side and the right side of the friction roller; the friction belt sequentially bypasses the first tensioning wheel, the friction roller and the second tensioning wheel; the first tension wheel and the second tension wheel are pressed against the friction belt and rotate along with the movement of the friction belt.
8. The friction drive based linear drive assembly of claim 7 wherein: and the first tensioning wheel and the second tensioning wheel are both provided with limiting grooves which are matched with the widths of the friction belts in an inwards concave manner, and the friction belts move in the limiting grooves of the first tensioning wheel and the second tensioning wheel.
9. A linear drive assembly based on a friction drive according to any of claims 1 to 5, characterized in that: the power driving group is provided with a sliding seat which can be sleeved on the sliding rail in a sliding way; the sliding seat drives the power driving group to move along the sliding rail of the moving guide rail seat.
10. A five-axis double arm two-joint robot comprising a friction drive based linear drive assembly according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220694674.6U CN216991984U (en) | 2022-03-28 | 2022-03-28 | Linear driving assembly based on friction transmission and five-axis double-arm double-section manipulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220694674.6U CN216991984U (en) | 2022-03-28 | 2022-03-28 | Linear driving assembly based on friction transmission and five-axis double-arm double-section manipulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216991984U true CN216991984U (en) | 2022-07-19 |
Family
ID=82371795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220694674.6U Active CN216991984U (en) | 2022-03-28 | 2022-03-28 | Linear driving assembly based on friction transmission and five-axis double-arm double-section manipulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216991984U (en) |
-
2022
- 2022-03-28 CN CN202220694674.6U patent/CN216991984U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8042425B2 (en) | Multi-axis robot for high-speed applications | |
| CN216991984U (en) | Linear driving assembly based on friction transmission and five-axis double-arm double-section manipulator | |
| KR20120067239A (en) | One axis robot using belt | |
| CN207014090U (en) | A kind of arc movable processing device | |
| CN113522977A (en) | Working roll with positioning structure for production and processing of rolling mill | |
| CN111216026B (en) | Polishing mechanism for linear guide rail | |
| CN219379574U (en) | Transfer welding jig of transfer robot | |
| CN117226694A (en) | Polishing device for bearing machining | |
| CN106986148B (en) | Guide rail device with two rollers forming one sliding block | |
| CN212966270U (en) | Running gear and system of patrolling and examining | |
| CN215477571U (en) | Small double-row flat belt conveyor line for factory | |
| CN210896832U (en) | Motor straight sliding potentiometer | |
| CN209773786U (en) | Double-station clamping welding production line for guide rail walkway plates | |
| CN207229693U (en) | A kind of synchronous belt monodentate bar accurate transmission mechanism | |
| CN211845987U (en) | Electric telescopic mechanism of conveying line | |
| CN217676419U (en) | Moving track of cigar airing room lifter | |
| CN215923525U (en) | Synchronous material supporting structure of automatic production line for sheet metal forming | |
| CN220222350U (en) | Multi-channel chain conveyor assembling device | |
| CN217576783U (en) | Air valve steel production turns to structure with adjusting | |
| CN214443796U (en) | Adjustable conveyer belt and spot welder | |
| CN215143510U (en) | Steel band tightening means | |
| CN220010197U (en) | Carrier tape packaging equipment with adjusting function | |
| CN214691564U (en) | Conveying equipment for automatic robot machining | |
| CN113682808B (en) | Manipulator for processing electronic components | |
| CN220375517U (en) | Silicon chip chain conveying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |