CN220660916U - Mechanical arm joint steering structure - Google Patents
Mechanical arm joint steering structure Download PDFInfo
- Publication number
- CN220660916U CN220660916U CN202322216941.6U CN202322216941U CN220660916U CN 220660916 U CN220660916 U CN 220660916U CN 202322216941 U CN202322216941 U CN 202322216941U CN 220660916 U CN220660916 U CN 220660916U
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- Prior art keywords
- arm
- mechanical arm
- gear
- joint steering
- steering structure
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- 238000001125 extrusion Methods 0.000 claims description 9
- 238000005507 spraying Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Manipulator (AREA)
Abstract
The utility model discloses a mechanical arm joint steering structure which comprises a first arm and a second arm, wherein a rotating part is formed at the end part of the second arm, a rotating shaft is arranged on the rotating part, the rotating shaft is rotatably arranged on the first arm, a first gear is coaxially arranged on the rotating shaft, a second gear meshed with the first gear is rotatably arranged in the first arm, a friction plate is coaxially arranged on the second gear, and a stop component is arranged in the first arm; the stop component comprises a seat body arranged in the first arm, a clamping cavity is formed in the seat body, and a pressing sheet is movably arranged in the clamping cavity; the mechanical arm solves the problems that in the prior art, the joint steering is mainly driven and steered through a motor, after a heavy load is arranged on the mechanical arm, the mechanical arm is difficult to maintain after the joint of the mechanical arm rotates, and the mechanical arm is unstable after the steering.
Description
Technical Field
The utility model relates to a mechanical arm structure, in particular to a mechanical arm joint steering structure.
Background
A plurality of mechanical arms are often arranged on a stamping production line and used for transferring workpieces. For example, chinese patent No. CN202223228306.1 provides a spraying mechanical arm with a navigation radar, where the spraying mechanical arm has a first mechanical arm and a second mechanical arm, the upper end and the lower end of the first mechanical arm are respectively provided with a first steering motor and a second steering motor, one side of the second mechanical arm is provided with a feeding bin, the other side is provided with an air plenum, the lower end of the air plenum is provided with a spraying nozzle, the spraying nozzle includes a nozzle mounting seat and a nozzle end cover, and the nozzle end cover is provided with an air nozzle, a first nozzle and a second nozzle; the inner part of the spray head mounting seat and the inner wall of the spray head end cover are provided with a second conveying pipe, a first conveying pipe and an air conveying pipe, the second conveying pipe is communicated with the second nozzle, the first conveying pipe is communicated with the first nozzle, and the air conveying pipe is communicated with the air nozzle; the second mechanical arm is also provided with a pneumatic lifting device; such as the mechanical arm in the prior art, the joint steering is mainly driven and steered by a motor, and when a heavy load is arranged on the mechanical arm, the mechanical arm is difficult to keep after the joint rotation, so that the mechanical arm is unstable after steering.
Disclosure of Invention
The utility model aims to provide a joint steering structure of a mechanical arm, which solves the problems that in the prior art, the joint steering is mainly driven and steered by a motor, and after a heavy load is arranged on the mechanical arm, the joint of the mechanical arm is difficult to maintain after rotating, so that the mechanical arm is unstable after steering.
In order to achieve the above object, the present utility model provides a mechanical arm joint steering structure, which comprises a first arm and a second arm, wherein a rotating part is formed at the end part of the second arm, a rotating shaft is arranged on the rotating part, the rotating shaft is rotatably arranged on the first arm, a first gear is coaxially arranged on the rotating shaft, a second gear meshed with the first gear is rotatably arranged in the first arm, a friction plate is coaxially arranged on the second gear, and a stop component is arranged in the first arm;
the stop component comprises a base body arranged in the first arm, a clamping cavity is formed in the base body, a pressing sheet is movably arranged in the clamping cavity, one side of the friction plate is attached to the inner wall of the clamping cavity, and the pressing sheet can be close to the other side of the friction plate.
Preferably, a telescopic sleeve is arranged in the clamping cavity, a telescopic rod is slidably arranged in the telescopic sleeve, and the telescopic rod is connected with the pressing sheet;
an inclined surface structure is formed on one side, far away from the friction plate, of the pressing sheet;
an extrusion head is movably disposed within the first arm such that the extrusion head is capable of contacting the ramp structure.
Preferably, a cylinder is arranged in the first arm, and a piston rod of the cylinder is connected with the extrusion head.
Preferably, a return spring is sleeved on the telescopic rod, one end of the return spring is connected with the pressing piece, and the other end of the return spring is connected with the telescopic sleeve.
Preferably, the inner wall of the clamping cavity and the surface of the pressing piece are both provided with rubber pads.
Preferably, a motor is arranged on the first arm, and an output shaft of the motor is connected with the first gear.
Preferably, the rotating part is of a cylindrical structure, and the first arm is provided with an arc-shaped limiting part matched with the rotating part.
The utility model provides a mechanical arm joint steering structure which comprises a first arm and a second arm, wherein a rotating part is formed at the end part of the second arm, a rotating shaft is arranged on the rotating part, the rotating shaft is rotatably arranged on the first arm, a first gear is coaxially arranged on the rotating shaft, a second gear meshed with the first gear is rotatably arranged in the first arm, a friction plate is coaxially arranged on the second gear, and a stop component is arranged in the first arm; the stop component comprises a base body arranged in the first arm, a clamping cavity is formed in the base body, a pressing sheet is movably arranged in the clamping cavity, one side of the friction plate is attached to the inner wall of the clamping cavity, and the pressing sheet can be close to the other side of the friction plate; the beneficial effects are that: according to the mechanical arm joint steering structure, the first gear rotates to finish steering of the second arm, and after the steering is finished, the friction plate is extruded into the clamping cavity by the pressing plate to limit the second gear, so that the first gear is limited by the second gear, and the problem that the angle is difficult to keep stable after the mechanical arm is steered is avoided.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a block diagram of a robotic arm joint steering architecture provided by the present utility model;
FIG. 2 is an interior view of a first arm of the present utility model in a robotic arm joint steering configuration;
fig. 3 is a block diagram of a stopper assembly in the steering structure of the mechanical arm joint provided by the utility model.
Description of the reference numerals
1-a second arm; 2-a rotating part; 3-an arc-shaped limiting part; 4-a first arm; 5-a motor; 6-a first gear; 7-a stop assembly; 71-a base; 72-telescoping sleeve; 73-telescoping rod; 74-tabletting; 75-bevel structure; 8-friction plate; 9-a second gear; 10-cylinder; 11-extrusion head.
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
As shown in fig. 1-3: the utility model provides a mechanical arm joint steering structure which comprises a first arm 4 and a second arm 1, wherein a rotating part 2 is formed at the end part of the second arm 1, a rotating shaft is arranged on the rotating part 2, the rotating shaft is rotatably arranged on the first arm 4, a first gear 6 is coaxially arranged on the rotating shaft, a second gear 9 meshed with the first gear 6 is rotatably arranged in the first arm 4, a friction plate 8 is coaxially arranged on the second gear 9, and a stop component 7 is arranged in the first arm 4; the stop assembly 7 comprises a base 71 arranged in the first arm 4, a clamping cavity is formed in the base 71, a pressing sheet 74 is movably arranged in the clamping cavity, one side of the friction plate 8 is attached to the inner wall of the clamping cavity, and the pressing sheet 74 can be close to the other side of the friction plate 8. According to the mechanical arm joint steering structure, the first gear rotates to finish steering of the second arm, and after the steering is finished, the friction plate is extruded into the clamping cavity by the pressing plate to limit the second gear, so that the first gear is limited by the second gear, and the problem that the angle is difficult to keep stable after the mechanical arm is steered is avoided.
In a preferred embodiment of the present utility model, a telescopic sleeve 72 is disposed in the engagement cavity, a telescopic rod 73 is slidably disposed in the telescopic sleeve 72, and the telescopic rod 73 is connected to the pressing piece 74; a bevel structure 75 is formed on one side of the pressing sheet 74 away from the friction plate 8; a squeeze head 11 is movably arranged in the first arm 4 such that the squeeze head 11 can be brought into contact with the ramp structure 75. In the initial state, the pressing piece 74 is not in contact with the friction plate, and after the steering is completed, the pressing piece 74 is contacted with the inclined surface structure through the extrusion head 11, so that the pressing piece 74 is pushed to move towards the direction of the friction plate, the friction plate is pressed tightly, the friction plate, the second gear and the first gear are locked, and the stability of the second arm after the steering is maintained.
In a preferred embodiment of the present utility model, in order to drive the extrusion head 11 to displace, a cylinder 10 is disposed in the first arm 4, and a piston rod of the cylinder 10 is connected to the extrusion head 11.
In a preferred embodiment of the present utility model, in order to enable the extrusion head 11 to be automatically reset after being separated from the inclined surface structure, the telescopic rod 73 is sleeved with a reset spring, one end of the reset spring is connected with the pressing piece 74, and the other end of the reset spring is connected with the telescopic sleeve 72.
In a preferred embodiment of the present utility model, in order to increase the friction force between the friction plate and the pressing plate, rubber pads are provided on the inner wall of the engagement cavity and the surface of the pressing plate 74.
In a preferred embodiment of the present utility model, in order to drive the first gear to rotate, a motor 5 is provided on the first arm 4, and an output shaft of the motor 5 is connected to the first gear 6.
In a preferred embodiment of the present utility model, in order to limit the rotation of the rotating portion, the rotating portion 2 has a cylindrical structure, and the first arm 4 is provided with an arc-shaped limiting portion 3 that is engaged with the rotating portion 2.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (7)
1. The mechanical arm joint steering structure is characterized by comprising a first arm (4) and a second arm (1), wherein a rotating part (2) is formed at the end part of the second arm (1), a rotating shaft is arranged on the rotating part (2), the rotating shaft is rotatably arranged on the first arm (4), a first gear (6) is coaxially arranged on the rotating shaft, a second gear (9) meshed with the first gear (6) is rotatably arranged in the first arm (4), a friction plate (8) is coaxially arranged on the second gear (9), and a stop component (7) is arranged in the first arm (4);
the stop component (7) comprises a base body (71) arranged in the first arm (4), a clamping cavity is formed in the base body (71), a pressing sheet (74) is movably arranged in the clamping cavity, one side of the friction sheet (8) is attached to the inner wall of the clamping cavity, and the pressing sheet (74) can be close to the other side of the friction sheet (8).
2. The mechanical arm joint steering structure according to claim 1, wherein a telescopic sleeve (72) is arranged in the clamping cavity, a telescopic rod (73) is slidably arranged in the telescopic sleeve (72), and the telescopic rod (73) is connected with the pressing sheet (74);
an inclined surface structure (75) is formed on one side, far away from the friction plate (8), of the pressing sheet (74);
a squeeze head (11) is movably arranged in the first arm (4) such that the squeeze head (11) can be brought into contact with the ramp structure (75).
3. The mechanical arm joint steering structure according to claim 2, characterized in that a cylinder (10) is provided in the first arm (4), and a piston rod of the cylinder (10) is connected with the extrusion head (11).
4. The mechanical arm joint steering structure according to claim 2, wherein a return spring is sleeved on the telescopic rod (73), one end of the return spring is connected with the pressing sheet (74), and the other end of the return spring is connected with the telescopic sleeve (72).
5. The mechanical arm joint steering structure according to claim 1, wherein rubber pads are arranged on the inner wall of the clamping cavity and the surface of the pressing sheet (74).
6. The mechanical arm joint steering structure according to claim 1, wherein a motor (5) is provided on the first arm (4), and an output shaft of the motor (5) is connected with the first gear (6).
7. The mechanical arm joint steering structure according to claim 1, wherein the rotating portion (2) is of a cylindrical structure, and the first arm (4) is provided with an arc-shaped limiting portion (3) matched with the rotating portion (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322216941.6U CN220660916U (en) | 2023-08-16 | 2023-08-16 | Mechanical arm joint steering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322216941.6U CN220660916U (en) | 2023-08-16 | 2023-08-16 | Mechanical arm joint steering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220660916U true CN220660916U (en) | 2024-03-26 |
Family
ID=90343451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322216941.6U Active CN220660916U (en) | 2023-08-16 | 2023-08-16 | Mechanical arm joint steering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220660916U (en) |
-
2023
- 2023-08-16 CN CN202322216941.6U patent/CN220660916U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |