Mechanical arm with mechanical claw stable in clamping

Abstract

The utility model relates to the technical field of mechanical arms, in particular to a mechanical arm with a mechanical claw stable in clamping. Comprising a supporting part and a clamping part, the clamping part is located at one end of the supporting part, the clamping part comprises a fixing shell, clamping plates and clamping plates, the fixing shell is fixed to the supporting part, the clamping plates are slidably connected to the two sides of the interior of one end of the fixing shell, the clamping plates are arranged on the adjacent sides of the two clamping plates, and positioning plates are fixed to the bottoms and the tops of the adjacent ends of the two clamping plates through bolts; an adjusting assembly used for driving the two clamping plates to move reversely is installed in the fixing shell and comprises fixing frames, a translation plate, an adjusting plate and a limiting rod, and the fixing frames are fixed to the two sides of the interior of the fixing shell. According to the mechanical arm with the mechanical claw stable in clamping, through cooperation of the supporting part and the clamping part, a grabbed object can be fixed between the two clamping plates, meanwhile, the angle of the clamping plates in the clamping plates can be adjusted, and then objects of different shapes can be stably clamped.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, and in particular to a robotic arm with stable gripping by a mechanical claw. Background Technology

[0002] Robotic arms need to move continuously during production or operation, which requires changes in the positional relationships between their different arms. In particular, relative rotation between the arms is frequently required. For such movements, a shaft and hole mating mechanism is typically used to allow relative rotation between the two arms. However, the positional relationship between the shaft and hole needs to be fixed, meaning the shaft must not disengage from the hole; therefore, screws are needed for secure fixing.

[0003] Patent document with announcement number (CN220373266U) discloses a robotic arm, including: a first arm comprising a body and a shaft, the shaft being disposed at one end of the body; a second arm having a shaft hole through which the shaft passes; a first screw coaxially disposed with the shaft and threadedly engaged with the shaft; the first screw being used to fix the relative position of the shaft and the shaft hole; a fixing member maintaining the relative position of the first arm; the fixing member abutting against the first screw in the circumferential direction. This utility model's technical solution can improve the reliability of the connection at the robotic arm's pivot point.

[0004] When using the above technology, the following technical problems were found in the existing technology: the mechanical gripper of the existing robotic arm is not stable enough when it is used. Therefore, a robotic arm with stable mechanical gripper is designed to provide another technical solution to the above technical problems. Utility Model Content

[0005] Therefore, it is necessary to provide a robotic arm with stable gripping capabilities to address the aforementioned technical problems, thereby solving the technical issue that the grippers of existing robotic arms are not stable enough when gripping objects.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A mechanical gripper provides a stable gripping robotic arm, comprising a support portion and a gripping portion. The gripping portion is located at one end of the support portion and includes a fixed shell, clamping plates, and locking plates. The fixed shell is fixed to the support portion. Clamping plates are slidably connected to both sides inside one end of the fixed shell. Locking plates are provided on adjacent sides of the two clamping plates. Positioning plates are bolted to the bottom and top of adjacent ends of the two locking plates.

[0008] As a preferred embodiment of the mechanical gripper that provides stable mechanical arm according to the present invention, an adjustment assembly for driving two clamping plates to move in opposite directions is installed inside the fixed shell. The adjustment assembly includes a fixed frame, a translation plate, an adjustment plate and a limiting rod. Fixed frames are fixed on both sides inside the fixed shell. Translation plates are slidably connected to the inside of one end of each of the two fixed frames. An adjustment plate is provided inside the fixed shell and between the two fixed frames. Limiting rods are rotatably connected to both ends of the bottom of the adjustment plate. The end of the limiting rod away from the adjustment plate is rotatably connected to the translation plate.

[0009] In a preferred embodiment of the mechanical arm with stable gripping provided by this utility model, an adjustment drive motor is fixed inside the fixed shell and located between two fixed frames. The output end of the adjustment drive motor is connected to an adjustment threaded rod, and the outer side of the adjustment threaded rod is threadedly connected to an adjustment plate.

[0010] As a preferred embodiment of the mechanical gripper that provides stable mechanical arm gripping according to the present invention, a rotating assembly for driving the plate to rotate is installed on the clamping plate. The rotating assembly includes a synchronous shaft, a second gear and a synchronous block. The synchronous shaft is slidably connected inside the clamping plate and is slidably connected to the plate. The second gear is provided inside the synchronous shaft and at one end of the plate. A synchronous block is fixed at one end of the synchronous shaft and is slidably connected to the second gear on the outside of the synchronous block.

[0011] As a preferred embodiment of the mechanical arm with stable gripping provided by this utility model, a fastening screw is provided inside one end of the clamping plate, and the tail end of the fastening screw passes through the synchronous shaft and is threadedly connected to the clamping plate.

[0012] As a preferred embodiment of the mechanical arm with stable gripping provided by this utility model, a rotary drive motor is fixed on one side of the clamping plate, and a first gear is connected to the output end of the rotary drive motor. The first gear meshes with a second gear.

[0013] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0014] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0015] This utility model provides a mechanical arm with stable gripping by a mechanical claw. Through the cooperation of the support part and the gripping part, the object being gripped can be fixed between two clamping plates. At the same time, the angle of the clamping plates inside the clamping plates can be adjusted, thereby stably gripping objects of different shapes.

[0016] By cooperating with the translation plate, adjustment plate, limit rod and anti-rotation hole, the adjustment plate can be raised and lowered, and the translation plate can be moved by the limit rod and anti-rotation hole. The translation plate can be moved by the limit of the fixed frame, thereby moving the two clamping plates closer together.

[0017] The rotation of the second gear, through the cooperation of the synchronous shaft and the fastening screw, drives the clamping plate to rotate synchronously, thereby adjusting the angle of the clamping plate inside the clamping plate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the fixing shell of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the fixing frame of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the clamping plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the synchronous shaft of this utility model.

[0024] In the diagram: 1. Support; 2. Fixed shell; 3. Fixed frame; 4. Translation plate; 5. Adjusting plate; 6. Limiting rod; 7. Anti-rotation hole; 8. Clamping plate; 9. Adjusting drive motor; 10. Adjusting threaded rod; 11. Clamping plate; 12. Positioning plate; 13. Synchronous shaft; 14. Rotation drive motor; 15. First gear; 16. Second gear; 17. Synchronous block; 18. Fastening screw. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Reference Figures 1-5 A mechanical gripper for stable clamping includes a support part 1 and a clamping part. The clamping part is located at one end of the support part 1, so that the clamping part can be adjusted to multiple angles through the operation of the support part 1, thereby clamping objects at different angles. The clamping part includes a fixed shell 2, clamping plates 8 and clamping plates 11. The fixed shell 2 is fixed to the support part 1. The clamping plates 8 are slidably connected to both sides inside one end of the fixed shell 2, so that the two clamping plates 8 can clamp objects when brought close together. A clamping plate 11 is provided on the adjacent side of the two clamping plates 8, so that objects can be clamped by the two clamping plates 11 being brought close together. A positioning plate 12 is bolted to the bottom and top of the adjacent end of the two clamping plates 11, so that the clamped objects are more stable and prevented from slipping.

[0030] The fixed shell 2 is equipped with an adjustment assembly for driving the two clamping plates 8 to move in opposite directions. The adjustment assembly includes a fixed frame 3, a translation plate 4, an adjustment plate 5, and a limiting rod 6. Fixed frames 3 are fixed on both sides inside the fixed shell 2. The translation plates 4 are slidably connected to the interior of one end of each of the two fixed frames 3, so that the translation plates 4 can slide inside the corresponding fixed frames 3. An adjustment plate 5 is set inside the fixed shell 2 and between the two fixed frames 3. The two ends of the bottom of the adjustment plate 5 are rotatably connected to the limiting rod 6. The end of the limiting rod 6 away from the adjustment plate 5 is rotatably connected to the translation plate 4. Thus, through the rotation of the limiting rod 6 and the translation plate 4, the rising of the adjustment plate 5 drives the two translation plates 4 to move closer together.

[0031] An adjustment drive motor 9 is fixed inside the fixed housing 2 and located between two fixed frames 3. The output end of the adjustment drive motor 9 is connected to an adjustment threaded rod 10. The outer side of the adjustment threaded rod 10 is threadedly connected to the adjustment plate 5, so that the rotation of the adjustment threaded rod 10 drives the adjustment plate 5 to move inside the fixed housing 2.

[0032] The clamping plate 8 is equipped with a rotating assembly for driving the clamping plate 11 to rotate. The rotating assembly includes a synchronous shaft 13, a rotary drive motor 14, a first gear 15, a second gear 16, a synchronous block 17, and a fastening screw 18. The synchronous shaft 13 is slidably connected inside the clamping plate 8 and is slidably connected to the clamping plate 11, so that when the synchronous shaft 13 is inside the clamping plate 8, it also enters the interior of the clamping plate 11. A fastening screw 18 is provided inside one end of the clamping plate 11. The tail end of the fastening screw 18 passes through the synchronous shaft 13 and is threadedly connected to the clamping plate 11, so that the rotation of the synchronous shaft 13 can drive the clamping plate 11 to rotate synchronously through the fastening screw 18. An anti-rotation hole 7 is provided inside the synchronous shaft 13, so that when the tail end of the fastening screw 18 is inside the synchronous shaft 13, it is located inside the anti-rotation hole 7.

[0033] A second gear 16 is provided inside the synchronous shaft 13 and at one end of the clamping plate 11. A synchronous block 17 is fixed to one end of the synchronous shaft 13. The outer side of the synchronous block 17 is slidably connected to the second gear 16. When the synchronous shaft 13 drives the synchronous block 17 into the interior of the clamping plate 8, the synchronous shaft 13 is fixed to the clamping plate 11 by the fastening screw 18. At the same time, the synchronous block 17 enters the interior of the second gear 16, and the rotation of the second gear 16 drives the synchronous block 17 to rotate synchronously. A rotary drive motor 14 is fixed to one side of the clamping plate 8. The output end of the rotary drive motor 14 is connected to a first gear 15. The first gear 15 is meshed with the second gear 16, and the rotation of the first gear 15 drives the synchronous block 17 through the second gear 16, thereby driving the synchronous shaft 13 to rotate.

[0034] The mechanical gripper with stable clamping provided by this utility model is used as follows: When clamping an object, the first step is to determine whether the object is rectangular or circular. When the object is rectangular, the first gear 15 is rotated by the operation of the rotary drive motor 14. The rotation of the first gear 15 drives the meshing second gear 16 to rotate the synchronizing block 17. The rotation of the synchronizing block 17 drives the synchronizing shaft 13 to rotate synchronously. The synchronizing shaft 13 drives the clamping plate 11 to rotate through the fastening screw 18. The angle of the clamping plate 11 on the clamping plate 8 is adjusted so that the two positioning plates 12 on the clamping plate 11 are parallel, thereby enabling the clamping of rectangular objects.

[0035] When the clamping plate 11 needs to be disassembled, turn the fastening screw 18 to disengage the clamping screw 18 from the clamping plate 11, and then push the synchronizing block 17 so that the synchronizing shaft 13 and the synchronizing block 17 slide away from the clamping plate 8 and the clamping plate 11, and the synchronizing block 17 disengages from the second gear 16, thereby enabling the clamping plate 11 to be repaired or replaced.

[0036] When the working of the support part 1 drives the fixed shell 2 to approach the clamped object, after the object is located between the two clamping plates 11, the working of the drive motor 9 drives the adjusting threaded rod 10 to rotate. The rotation of the adjusting threaded rod 10 drives the threaded adjusting plate 5 to move. The movement of the adjusting plate 5 drives the two translation plates 4 to move closer through the two limit rods 6. The movement of the translation plates 4 drives the clamping plate 8 to move, so that the two clamping plates 8 approach and clamp the object.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A robotic arm with stable gripping by a mechanical claw, characterized in that, It includes a support part (1) and a clamping part. The clamping part is located at one end of the support part (1). The clamping part includes a fixed shell (2), a clamping plate (8) and a clamping plate (11). The fixed shell (2) is fixed to the support part (1). The clamping plate (8) is slidably connected to both sides inside one end of the fixed shell (2). The clamping plate (11) is provided on the adjacent side of the two clamping plates (8). The bottom and top of the adjacent end of the two clamping plates (11) are bolted with positioning plates (12).

2. The robotic arm with stable gripping by a mechanical claw according to claim 1, characterized in that, The fixed shell (2) is equipped with an adjustment assembly for driving the two clamping plates (8) to move in opposite directions. The adjustment assembly includes a fixed frame (3), a translation plate (4), an adjustment plate (5), and a limiting rod (6). Fixed frames (3) are fixed on both sides inside the fixed shell (2). The translation plate (4) is slidably connected to the interior of one end of each of the two fixed frames (3). An adjustment plate (5) is provided inside the fixed shell (2) and between the two fixed frames (3). The two ends of the bottom of the adjustment plate (5) are rotatably connected to the limiting rod (6). The end of the limiting rod (6) away from the adjustment plate (5) is rotatably connected to the translation plate (4).

3. The robotic arm with stable gripping by a mechanical claw according to claim 2, characterized in that, An adjustment drive motor (9) is fixed inside the fixed shell (2) and between the two fixed frames (3). The output end of the adjustment drive motor (9) is connected to an adjustment threaded rod (10). The outer side of the adjustment threaded rod (10) is threadedly connected to the adjustment plate (5).

4. The robotic arm with stable gripping by a mechanical claw according to claim 1, characterized in that, The clamping plate (8) is equipped with a rotating assembly for driving the card plate (11) to rotate. The rotating assembly includes a synchronous shaft (13), a second gear (16), and a synchronous block (17). The synchronous shaft (13) is slidably connected inside the clamping plate (8). The synchronous shaft (13) is slidably connected to the card plate (11). The second gear (16) is provided inside the synchronous shaft (13) and at one end of the card plate (11). The synchronous block (17) is fixed at one end of the synchronous shaft (13). The outer side of the synchronous block (17) is slidably connected to the second gear (16).

5. A robotic arm with stable gripping by a mechanical claw according to claim 4, characterized in that, A fastening screw (18) is provided inside one end of the card plate (11), and the tail end of the fastening screw (18) passes through the synchronous shaft (13) and is threadedly connected to the card plate (11).

6. A robotic arm with stable gripping by a mechanical claw according to claim 4, characterized in that, A rotary drive motor (14) is fixed on one side of the clamp (8). The output end of the rotary drive motor (14) is connected to a first gear (15), and the first gear (15) meshes with a second gear (16).

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