CN212601819U - Mechanical arm rotating structure - Google Patents
Mechanical arm rotating structure Download PDFInfo
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- CN212601819U CN212601819U CN202020426113.9U CN202020426113U CN212601819U CN 212601819 U CN212601819 U CN 212601819U CN 202020426113 U CN202020426113 U CN 202020426113U CN 212601819 U CN212601819 U CN 212601819U
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- arm
- force application
- force
- turntable
- convex part
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Abstract
The utility model provides an arm rotating-structure, including two arms that need relative rotation, be equipped with the application of force carousel between these two arms, the pivot dress of application of force carousel is on first arm wherein, the application of force carousel has radial outer convex part, this radial outer convex part is fixed with the second arm, thereby these two arms can rotate relatively, there is the wire to draw another arm from one of them arm, the wire is from the side process of the non-radial outer convex part department of application of force carousel and not touch the application of force carousel, the distance of pivot is not more than along the distance of pivot outside radial outer convex part through locating. The rotating shaft arranged on the first arm drives the second arm to rotate through the radial outward convex part of the force application turntable, so that the second arm is driven to swing to a larger extent through the radial protruding part; the outer sides of other positions of the force application rotary table except the radial outward convex part are avoidance spaces, and the wires only pass through the avoidance spaces, so that the force application rotary table is not easy to touch the wires, and the wires are prevented from being abraded.
Description
Technical Field
The utility model relates to an arm, especially arm rotating-structure.
Background
The utility model discloses the people has unfairly researched and developed an L shape rocking arm, L shape rocking arm includes a first arm, a second arm, a joint spare, and joint spare has last link and right link, and the lower extreme of first arm and the last link swing joint of joint spare and the two can transversely rotate relatively, the left end of second arm and the right link fixed connection of joint spare. The motor is arranged in the first arm, an output shaft of the motor protrudes downwards from the lower end of the first arm, the first arm is provided with a force application turntable for the output shaft of the motor, the diameter of the force application turntable is equal to that of the lower end of the first arm, and the output shaft of the motor is fixedly connected to the circle center of the force application turntable so as to drive the force application turntable to rotate around the circle center of the motor. The upper connecting end of the joint piece is a round pipe, the diameter of the round pipe is matched with the diameter of the force application turntable, and the round pipe is fixedly connected with the force application turntable, so that the joint piece provided with the second arm is movably arranged on the first arm. The working principle is as follows: the motor output shaft drives the force application rotating disc to rotate around the circle center of the force application rotating disc, so that the force application rotating disc drives the joint part to transversely rotate, the joint part drives the second arm to transversely rotate relative to the first arm, the transverse rotation is alternately performed in clockwise positive rotation and anticlockwise reverse rotation, and the positive rotation and the reverse rotation are both limited by the maximum rotating angle. The first arm is provided with a wire connected to the second arm, the upper part of the wire is fixedly and fixedly hooped on the outer side wall of the first arm, and the lower part of the wire is fixedly and hooped in the joint part, so that when the second arm rotates transversely relative to the first arm, the upper part of the wire and the lower part of the wire also rotate transversely relative to each other.
The disadvantages of the L-shaped rotating arm are that: since the diameter of the force application turntable is equal to that of the first arm and the upper part of the wire is fixedly hooped on the outer side wall of the first arm, the wire is worn when the force application turntable rotates.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims at a mechanical arm rotating structure, the force application turntable of which is not easy to wear and tear a wire when rotating.
The mechanical arm rotating structure comprises two arms which need to rotate relatively, a force application turntable is arranged between the two arms, a rotating shaft of the force application turntable is arranged on the first arm, the force application turntable is provided with a radial outward protruding part, the radial outward protruding part is fixed with the second arm, therefore, the two arms can rotate relatively, a lead is led from one arm to the other arm, the lead passes through the side edge of the non-radial outward protruding part of the force application turntable without touching the force application turntable, and the distance from the passing part to the rotating shaft is not greater than the distance from the outer edge of the radial outward protruding part of the force application turntable to the rotating shaft.
Further, the radial outward protrusion is fixed with the second arm, and the specific structure is that the radial outward protrusion is provided with a connecting column protruding axially; the second arm is fixedly provided with a mounting seat, the mounting seat comprises a first mounting hole, and the connecting column is fixedly arranged in the first mounting hole.
Furthermore, the second arm is fixedly provided with a joint piece, the joint piece comprises an opening, and a shell of the joint piece at the opening extends out of the mounting seat in the inward radial direction.
Furthermore, the mounting seat comprises a shaft hole, and the rotating shaft penetrates out of the force application turntable and then is mounted in the shaft hole.
Further, the projection of the mounting seat on the force application turntable does not exceed the force application turntable.
Further, the first arm is provided with a first loop portion on a side wall of an end where the force application dial is located, the second arm is provided with a second loop portion in a projection position on which the force application dial is projected, and the wire is led from one arm to the other arm through the first loop portion and the second loop portion.
Further, the second arm is provided with a terminal electric device, and the lead is used for supplying power to the terminal electric device.
Furthermore, a motor is arranged in the first arm and drives the rotating shaft of the force application rotating disc to rotate.
Further, the wire is routed from the first arm to the second arm through the first and second hoop sections.
Further, the end-use appliance includes a motor.
Has the advantages that: the rotating shaft arranged on the first arm drives the second arm to rotate through the radial outward convex part of the force application turntable, so that the second arm is driven to swing to a larger extent through the radial protruding part; the outside of the other positions of the force application turntable except the radial outward convex part is an avoiding space, so long as the force application turntable is controlled not to rotate fully for a circle in the same direction, the radial outward convex part can not touch the wire, the wire can only pass through the avoiding space, and therefore the force application turntable is not easy to touch the wire and the wire is prevented from being abraded.
Drawings
Fig. 1 is an overall schematic view of a robot arm in the present invention;
FIG. 2 is a partial schematic view at A in FIG. 1 (with the joint housing and mount hidden);
FIG. 3 is a schematic view of a force applying turntable according to the present invention;
FIG. 4 is a top view of the joint;
in the figure: 1. a first arm; 2. a second arm; 4. a wire; 5. a first loop portion; 6. a second loop portion; 7. an output shaft; 8. a hoop body; 9. a force application turntable; 10. connecting columns; 11. a radially outer convex portion; 12. a joint member; 13. an upper connection end; 14. a right connection end; 15. a first mounting hole; 16. a shaft hole; 17. and (7) mounting a seat.
Detailed Description
The robot arm rotation structure is shown in fig. 1 as a whole, and includes a joint member 12, a first arm 1, and a second arm 2. Fig. 1 is a partial schematic view of a position a as shown in fig. 2 (with the housing and the mounting seat 17 of the joint 12 hidden), please refer to fig. 4 together, the joint 12 has an upper connecting end 13 and a right connecting end 14, the lower end of the first arm 1 and the upper connecting end 13 of the joint 12 are movably connected and can rotate transversely relative to each other, and the left end of the second arm 2 and the right connecting end 14 of the joint 12 are fixedly connected. The first arm 1 is fixed in position, a hoop body 8 is arranged on the outer side wall of the lower portion of the first arm 1, a first hoop line portion 5 is arranged on the hoop body 8 from top to bottom, a second hoop line portion 6 is arranged in the projection position of the force application turntable 9 of the joint part 12, and the lead 4 passes through the first hoop line portion 5 from the first arm 1 and then passes through the second hoop line portion 6 and finally is led to the second arm 2 (of course, the lead can also pass through the second hoop line portion 6 from the second arm 2 and then passes through the first hoop line portion 5 and finally is led to the first arm 1). The wire 4 supplies power and signals to terminal electrical equipment such as a motor in the second arm 2. The first arm 1 is provided with a motor as a driving device in the present embodiment, an output shaft 7 of the motor protrudes downward from the first arm 1, the first arm 1 is provided with a force application dial 9 for the output shaft 7 of the motor, the force application dial 9 is coaxially mounted on the output shaft 7, the output shaft 7 penetrates out of the force application dial 9 (in the present embodiment, the output shaft 7 is a rotating shaft of the force application dial 9), and the output shaft 7 can drive the force application dial 9 to rotate along a transverse plane. The structure of the force application turntable 9 is shown in fig. 3, the force application turntable 9 transversely extends out of a radial outward convex part 11, the lower end surface of the radial outward convex part 11 is provided with two connecting columns 10 in a downward protruding mode, and as shown in fig. 4, the connecting columns 10 are fixedly installed in first installation holes 15 of an installation seat 17 in a joint part 12. The side edge of the non-radial outward convex part of the force application turntable 9 forms a non-closed annular avoidance space, when the force application turntable 9 is driven by the motor to rotate, the lead 4 passes through the side edge (avoidance space) of the non-radial outward convex part of the force application turntable 9 and does not touch the force application turntable 9, and the distance from the passing position to the output shaft 7 is not more than the distance from the outer edge of the radial outward convex part 11 of the force application turntable 9 to the output shaft 7. Due to the existence of the radial outward convex part 11, when the output shaft 7 drives the force application rotary disc 9 to rotate, the force application rotary disc can rotate clockwise and rotate clockwise for a certain angle, and also can rotate anticlockwise for a certain angle, but the force application rotary disc 9 can not touch the lead 4 in the forward rotation or the reverse rotation.
As shown in fig. 4, the upper connecting end 13 of the joint 12 has an opening, the housing of the joint 12 at the opening extends inwards and transversely out of the mounting seat 17, the mounting seat 17 is provided with two first mounting holes 15 and a shaft hole 16, the positions of the two first mounting holes 15 correspond to the positions of the two connecting columns 10 respectively, the position of the shaft hole 16 corresponds to the position of the output shaft 7, the two connecting columns 10 are fixedly mounted on the two first mounting holes 15 respectively, and the output shaft 7 is fixedly mounted or movably mounted on the shaft hole 16, so that the shaft hole 16 corresponds to the output shaft 7 and is suitable in size. It should be noted that the lead 4 does not touch the force application dial 9, and the projection of the mounting seat 17 on the force application dial 9 does not exceed the force application dial 9, so that the mounting seat 17 is not touched with a high probability.
The mechanical arm rotating structure is not preferable, and can be changed into: the rotating shaft of the force application turntable 9 is movably arranged on the second arm 2, the first arm 1 is fixedly arranged on the radial outward convex part 11 of the force application turntable 9, and the second arm 2 is internally provided with a motor for driving the rotating shaft of the force application turntable 9.
Claims (10)
1. A mechanical arm rotating structure comprising two arms to be rotated relatively, a force application turntable is arranged between the two arms, a rotating shaft of the force application turntable is arranged on a first arm, the force application turntable is provided with a radial outward convex part which is fixed with a second arm, thereby the two arms can be rotated relatively, and a lead is led from one arm to the other arm, and the mechanical arm rotating structure is characterized in that: the wire passes through and does not touch the application of force carousel from the side of the non-radial bulge department of application of force carousel, and the distance of passing through department to the pivot is not more than the distance of application of force carousel at radial bulge outer edge to pivot.
2. The robot arm turning structure of claim 1, wherein: the radial outward convex part is fixed with the second arm, and the specific structure is that the radial outward convex part is provided with a connecting column which axially protrudes; the second arm is fixedly provided with a mounting seat, the mounting seat comprises a first mounting hole, and the connecting column is fixedly arranged in the first mounting hole.
3. The robot arm turning structure of claim 2, wherein: the second arm is fixedly provided with a joint piece, the joint piece comprises an opening, and a shell of the joint piece at the opening radially extends out of the mounting seat inwards.
4. The robot arm turning structure of claim 2 or 3, wherein: the mounting seat comprises a shaft hole, and the rotating shaft penetrates out of the force application turntable and then is mounted in the shaft hole.
5. The robot arm turning structure of claim 2 or 3, wherein: the projection of the mounting seat on the force application turntable does not exceed the force application turntable.
6. The robot arm turning structure of claim 1, wherein: the first arm is provided with a first hoop part on the side wall of the end where the force application turntable is located, the second arm is provided with a second hoop part in the projection position of the projection of the force application turntable, and the conducting wire is led from one arm to the other arm through the first hoop part and the second hoop part.
7. The robot arm turning structure of claim 6, wherein: the second arm is provided with a terminal electric device, and the lead is used for supplying power to the terminal electric device.
8. The robot arm turning structure of claim 1, wherein: the first arm is internally provided with a motor which drives the rotating shaft of the force application turntable to rotate.
9. The robot arm turning structure of claim 6, wherein: the wire is routed from the first arm to the second arm through the first and second hoop sections.
10. The robot arm turning structure of claim 7, wherein: the terminal electrical appliance comprises a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020426113.9U CN212601819U (en) | 2020-03-27 | 2020-03-27 | Mechanical arm rotating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020426113.9U CN212601819U (en) | 2020-03-27 | 2020-03-27 | Mechanical arm rotating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212601819U true CN212601819U (en) | 2021-02-26 |
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ID=74708169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020426113.9U Active CN212601819U (en) | 2020-03-27 | 2020-03-27 | Mechanical arm rotating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212601819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360800A (en) * | 2020-03-27 | 2020-07-03 | 广州富港万嘉智能科技有限公司 | Mechanical arm rotating structure |
-
2020
- 2020-03-27 CN CN202020426113.9U patent/CN212601819U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360800A (en) * | 2020-03-27 | 2020-07-03 | 广州富港万嘉智能科技有限公司 | Mechanical arm rotating structure |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211029 Address after: 510700 501-2, Guangzheng science and Technology Industrial Park, No. 11, Nanyun 5th Road, Science City, Huangpu District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU FUGANG LIFE INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 510700 501-1, Guangzheng science and Technology Industrial Park, No. 11, Yunwu Road, Science City, Huangpu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU FUGANG WANJIA INTELLIGENT TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |