Weight loading and unloading mechanical arm

Abstract

The utility model relates to the technical field of electronic platform scale verification, and discloses a weight loading and unloading mechanical arm. Comprising a base, the top end of the base is fixedly connected with a box body, the interior of the base is in threaded connection with a mounting bolt, the upper surface of the box body is fixedly connected with a motor, the interior of the box body is rotatably connected with a swing arm, the bottom of the swing arm is fixedly connected with a connecting frame, and the interior of the connecting frame is fixedly connected with an air cylinder. The output shaft of the motor rotates to drive the first gear to drive the second gear to rotate, the second gear rotates to drive the swing arm to rotate, the positions of the air cylinder, the hanging bracket and the connecting frame can be adjusted, weights can be flexibly placed, the handle can be rotated to drive the rotating drum to rotate, the threaded rod is shifted by the shifting block to rotate along the interior of the threaded ring, and the weight can be adjusted. The air cylinder can drive the clamping plate to move and adjust to clamp the weight, and after clamping, the air cylinder can adjust the hanging bracket to move to hoist and put down the weight.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic platform scale calibration, in particular to a weight loading and unloading mechanical arm. Background Art

[0002] Electronic scale calibration refers to the activity of regularly checking and confirming that the measuring instrument of the electronic scale meets the statutory requirements to ensure the accuracy and reliability of its measurement results. The calibration of electronic scales is carried out in accordance with laws, regulations and industry standards, and is usually carried out by relevant testing agencies or authoritative organizations. During the calibration process of electronic scales, standard weights need to be placed on the surface of the electronic scale to observe whether the electronic scale value is accurate and reliable.

[0003] In the prior art, the weighing range of electronic platform scales ranges from tens of kilograms to hundreds of kilograms. During the calibration process, a large number of weights need to be placed and observed. However, it is not convenient to carry and handle the large and numerous weights, which results in time-consuming and labor-intensive weight handling and low efficiency. If an auxiliary lifting device is used for moving, it is not only less flexible but also inconvenient to adjust. Therefore, the utility model designs a weight loading and unloading mechanical arm. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that large and numerous weights are inconvenient to carry and handle, resulting in time-consuming and labor-intensive and low efficiency in carrying the weights, and if an auxiliary lifting device is used for moving the weights, the flexibility is poor and the adjustment is inconvenient, and a weight loading and unloading mechanical arm is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A weight loading and unloading robot arm comprises a base, the top of the base is fixedly connected to a box body, the internal thread of the base is connected to mounting bolts, the upper surface of the box body is fixedly connected to a motor, the inside of the box body is rotatably connected to a swing arm, the bottom of the swing arm is fixedly connected to a connecting frame, the inside of the connecting frame is fixedly connected to a cylinder, the end of the piston rod of the cylinder is fixedly connected to a hanger, the bottom of the hanger is fixedly connected to a connecting frame, a splint is slidingly provided inside the connecting frame, a threaded ring is fixedly connected inside the connecting frame, a threaded rod is threadedly connected inside the threaded ring, a rotating cylinder is sleeved on the outer side of the threaded rod, the rotating cylinder is rotatably connected to the inner wall of the connecting frame, and the end of the threaded rod facing away from the rotating cylinder is fixedly connected to the side wall of the splint.

[0007] Preferably, a strip groove is provided on the inner wall of the rotating drum, a shift block is fixedly connected to the rod wall of the threaded rod located inside the rotating drum, and the shift block is slidably arranged on the inner wall of the rotating drum located in the strip groove.

[0008] Preferably, an anti-skid pad is fixedly connected to the inner wall of the clamping plate, and a handle is fixedly connected to the end of the rotating cylinder away from the threaded rod.

[0009] Preferably, the output shaft of the motor extends to the interior of the box and is fixedly connected to a first gear, the swing arm is located on a rod wall inside the box and is fixedly sleeved with a second gear, and the first gear and the second gear are meshed with each other.

[0010] Preferably, the top of the splint is fixedly connected to a suspension rod, the top of the connecting frame is fixedly connected to a connecting suspension plate, the inner wall of the suspension plate is provided with a strip groove, the suspension plate is located on the inner wall of the strip groove and a suspension block is slidably provided, and the bottom of the suspension block is fixedly connected to the suspension rod.

[0011] Preferably, a ball is provided for rolling inside the hanging block, and the side wall of the ball is arranged for rolling on the inner wall of the hanging plate located in the strip groove.

[0012] Preferably, the cross section of the hanging block is set to be trapezoidal, and the hanging plate is located on the inner wall of the strip groove and matches the hanging block.

[0013] Preferably, a reinforcing rod is fixedly connected to the side wall of the swing arm.

[0014] Preferably, the clamping plate is configured as an arc-shaped plate, and the end of the clamping plate is configured as an arc surface.

[0015] Compared with the prior art, the utility model provides a weight loading and unloading mechanical arm, which has the following beneficial effects:

[0016] 1. The weight loading and unloading robot arm drives the first gear to drive the second gear to rotate through the rotation of the output shaft of the motor, and the rotation of the second gear drives the swing arm to rotate, so that the positions of the cylinder, the hanger and the connecting frame can be adjusted, and the weights can be placed flexibly. The rotating drum can be driven to rotate by turning the handle, and the threaded rod can be driven to rotate along the inside of the threaded ring by the shifting block, which can drive the splint to move and adjust, and clamp the weights. After the clamping, the cylinder can mobilize the hanger to move, and the weights can be lifted and lowered.

[0017] 2. The weight loading and unloading robot arm can improve the stability of the movement of the clamping plate by connecting the hanging plate through the hanging block and the hanging rod. The cross-section of the hanging block is set to be trapezoidal, which can improve the sliding stability. The ball can reduce the friction of the hanging block inside the strip groove. The clamping plate is set to an arc surface to improve the stability of the weight clamping. At the same time, the anti-slip pad can increase the friction and prevent slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a weight loading and unloading mechanical arm proposed by the utility model;

[0019] Figure 2 for Figure 1A schematic diagram of the structure of the local A part;

[0020] Figure 3 for Figure 2 The structural stereogram of the middle splint;

[0021] Figure 4 for Figure 2 Structural stereogram of the middle hanging block.

[0022] In the figure: 1 base, 2 box body, 3 mounting bolts, 4 motor, 5 swing arm, 6 connecting frame, 7 cylinder, 8 hanger, 9 connecting frame, 10 clamping plate, 11 rotating drum, 12 rotating drum, 13 threaded rod, 14 shifting block, 15 anti-skid pad, 16 handle, 17 first gear, 18 second gear, 19 hanging plate, 20 hanging block, 21 hanging rod, 22 ball bearing, 23 reinforcing rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1

[0025] Reference Figure 1-4 A weight loading and unloading robot arm comprises a base 1, the top of the base 1 is fixedly connected to a box body 2, the internal thread of the base 1 is connected to a mounting bolt 3, the upper surface of the box body 2 is fixedly connected to a motor 4, the inside of the box body 2 is rotatably connected to a swing arm 5, the bottom of the swing arm 5 is fixedly connected to a connecting frame 6, the inside of the connecting frame 6 is fixedly connected to a cylinder 7, the piston rod end of the cylinder 7 is fixedly connected to a hanger 8, the bottom of the hanger 8 is fixedly connected to a connecting frame 9, a splint 10 is slidably provided inside the connecting frame 9, a threaded ring 11 is fixedly connected inside the connecting frame 9, a threaded rod 13 is threadedly connected inside the threaded ring 11, a rotating cylinder 12 is sleeved on the outer side of the threaded rod 13, the rotating cylinder 12 is rotatably connected to the inner wall of the connecting frame 9, and the end of the threaded rod 13 facing away from the rotating cylinder 12 is fixedly connected to the side wall of the splint 10.

[0026] A strip groove is provided on the inner wall of the rotating drum 12, and a shift block 14 is fixedly connected to the rod wall inside the rotating drum 12. The shift block 14 is slidably arranged on the inner wall of the rotating drum 12 located in the strip groove. A non-slip pad 15 is fixedly connected to the inner wall of the splint 10. A handle 16 is fixedly connected to the end of the rotating drum 12 away from the threaded rod 13. The output shaft of the motor 4 extends to the interior of the box body 2 and is fixedly connected to a first gear 17. The swing arm 5 is located on the rod wall inside the box body 2 and is fixedly sleeved with a second gear 18. The first gear 17 and the second gear 18 are meshed with each other.

[0027] When in use, the output shaft of the motor 4 can drive the first gear 17 to drive the second gear 18 to rotate, and the rotation of the second gear 18 can drive the swing arm 5 to rotate, so that the positions of the cylinder 7, the hanger 8 and the connecting frame 9 can be adjusted, and the weights can be placed flexibly later. The rotating handle 16 can drive the rotating drum 12 to rotate, and the threaded rod 13 can be driven by the shift block 14 to rotate along the inside of the threaded ring 11, which can drive the splint 10 to move and adjust, and the weights can be clamped. After clamping, the cylinder 7 can mobilize the hanger 8 to move, and the weights can be lifted and lowered.

[0028] Embodiment 2

[0029] Reference Figure 1-4 The top of the splint 10 is fixedly connected with a hanging rod 21, and the top of the connecting frame 9 is fixedly connected with a connecting hanging plate 19. The inner wall of the hanging plate 19 is provided with a strip groove. The hanging plate 19 is located on the inner wall of the strip groove and a hanging block 20 is slidably provided. The bottom of the hanging block 20 is fixedly connected with the hanging rod 21. The cross-section of the hanging block 20 is set to be trapezoidal. The hanging plate 19 is located on the inner wall of the strip groove and matches the hanging block 20.

[0030] Connecting the hanging plate 19 through the hanging block 20 and the hanging rod 21 can improve the stability of the movement of the clamping plate 10. The cross section of the hanging block 20 is set to be trapezoidal, which can improve the sliding stability.

[0031] Embodiment 3

[0032] Reference Figure 1-4 A ball 22 is provided inside the hanging block 20, and the side wall of the ball 22 is provided on the inner wall of the hanging plate 19 located in the strip groove. A reinforcing rod 23 is fixedly connected to the side wall of the swing arm 5, the splint 10 is provided as an arc plate, and the end of the splint 10 is provided as an arc surface.

[0033] The ball bearings 22 can reduce the friction of the hanging block 20 inside the strip groove. The clamping plate 10 is set as an arc surface, which can improve the stability of the weight clamping. At the same time, the anti-skid pad 15 can increase the friction and prevent slipping.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A weight loading and unloading robot arm, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a box body (2), the interior of the base (1) is threadedly connected to a mounting bolt (3), the upper surface of the box body (2) is fixedly connected to a motor (4), the interior of the box body (2) is rotatably connected to a swing arm (5), the bottom of the swing arm (5) is fixedly connected to a connecting frame (6), the interior of the connecting frame (6) is fixedly connected to a cylinder (7), the piston rod end of the cylinder (7) is fixedly connected to a hanger (8), the bottom of the hanger (8) is fixedly connected to a piston rod (2) of the cylinder (7), and the bottom of the hanger (8) is fixedly connected to a piston rod (3). A connecting frame (9) is fixedly connected to the connecting frame (9), a clamping plate (10) is slidably provided inside the connecting frame (9), a threaded ring (11) is fixedly connected inside the connecting frame (9), a threaded rod (13) is threadedly connected inside the threaded ring (11), a rotating cylinder (12) is sleeved on the outer side of the threaded rod (13), the rotating cylinder (12) is rotatably connected to the inner wall of the connecting frame (9), and one end of the threaded rod (13) facing away from the rotating cylinder (12) is fixedly connected to the side wall of the clamping plate (10).

2. A weight loading and unloading robot arm according to claim 1, characterized in that: The inner wall of the rotating drum (12) is provided with a strip groove, the threaded rod (13) is fixedly connected to the rod wall inside the rotating drum (12) with a shifting block (14), and the shifting block (14) is slidably arranged on the inner wall of the rotating drum (12) located in the strip groove.

3. A weight loading and unloading robot arm according to claim 1, characterized in that: An anti-slip pad (15) is fixedly connected to the inner wall of the clamping plate (10), and a handle (16) is fixedly connected to one end of the rotating cylinder (12) away from the threaded rod (13).

4. A weight loading and unloading robot arm according to claim 1, characterized in that: The output shaft of the motor (4) extends into the interior of the box (2) and is fixedly connected to a first gear (17); the swing arm (5) is located on a rod wall inside the box (2) and is fixedly sleeved with a second gear (18); the first gear (17) and the second gear (18) are meshed with each other.

5. A weight loading and unloading robot arm according to claim 1, characterized in that: The top end of the clamping plate (10) is fixedly connected to a suspension rod (21), the top end of the connecting frame (9) is fixedly connected to a connecting suspension plate (19), the inner wall of the suspension plate (19) is provided with a strip groove, the suspension plate (19) is slidably provided with a suspension block (20) on the inner wall of the strip groove, and the bottom of the suspension block (20) is fixedly connected to the suspension rod (21).

6. A weight loading and unloading robot arm according to claim 5, characterized in that: A ball (22) is provided inside the hanging block (20) for rolling operation, and a side wall of the ball (22) is provided for rolling operation on the inner wall of the hanging plate (19) located in the strip groove.

7. A weight loading and unloading robot arm according to claim 5, characterized in that: The cross section of the hanging block (20) is set to be trapezoidal, and the hanging plate (19) is located on the inner wall of the strip groove and matches the hanging block (20).

8. A weight loading and unloading robot arm according to claim 1, characterized in that: A reinforcing rod (23) is fixedly connected to the side wall of the swing arm (5).

9. A weight loading and unloading robot arm according to claim 1, characterized in that: The clamping plate (10) is configured as an arc-shaped plate, and the end of the clamping plate (10) is configured as an arc surface.

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