A mechanical arm load capacity testing device

Abstract

The utility model relates to mechanical arm test technical field especially relates to a kind of mechanical arm load capacity testing device.The utility model provides a kind of mechanical arm load capacity testing device, which can slow down the falling speed of the counterweight box, avoid damaging the surrounding equipment or product, and improve the test safety.A kind of mechanical arm load capacity testing device, including bottom plate, shell, motor and gyro wheel etc., the bottom plate upside is connected with shell, the shell left part upside is connected with motor, and the gyro wheel is connected on motor output shaft.The utility model is fixed by the cooperation of the second hook and the disc clamping under the action of centrifugal force when the first rotating disc rotates quickly, so that the friction between the second rope and the first rotating disc is generated, the moving speed of the second rope is slowed down, and the effect of slowing down the falling speed of the counterweight box, avoiding damaging the surrounding equipment or product, and improving the test safety is achieved.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm testing technology, and in particular to a robotic arm load capacity testing device. Background Technology

[0002] Robotic arm load capacity testing is primarily used to evaluate and verify the robotic arm's ability to carry heavy loads. Such testing is crucial for ensuring the safety, reliability, and performance of robotic arms, especially in applications such as industrial automation, logistics handling, and medical equipment.

[0003] Existing tests for the load capacity of robotic arms typically involve having the robotic arm grasp objects of varying weights to assess its load capacity. However, when the weight of the object exceeds the robotic arm's load capacity, the robotic arm may become damaged, causing the object to fall and threatening the safety of on-site personnel, as well as damaging surrounding equipment or products, which is quite dangerous.

[0004] Therefore, a robotic arm load capacity testing device has now been developed that can slow down the falling speed of the counterweight box, avoid damage to surrounding equipment or products, and improve testing safety. Utility Model Content

[0005] To overcome the shortcomings of existing robotic arm load capacity testing, which may damage the robotic arm when the weight exceeds its load capacity, causing the weight to fall and threatening the safety of on-site personnel and damaging surrounding equipment or products, this utility model provides a robotic arm load capacity testing device that can slow down the falling speed of the counterweight box, avoid damage to surrounding equipment or products, and improve testing safety.

[0006] The technical solution is as follows: A robotic arm load capacity testing device includes a base plate, a housing, a motor, a roller, a first rope, a first hook, a displacement sensor, a counterweight assembly, and a deceleration assembly. The housing is connected to the upper side of the base plate, and the motor is connected to the upper left side of the housing. A roller is connected to the output shaft of the motor and is rotatably connected to the housing. The first rope is wound around the roller and passes through the housing. The first hook is connected to the lower side of the first rope. A displacement sensor is connected to the inner upper part of the housing. The housing is equipped with a counterweight assembly that can adjust the counterweight of the robotic arm, and the housing is also equipped with a deceleration assembly that can slow down the falling speed of the counterweight assembly.

[0007] Furthermore, the motor and processor are electrically connected via a control module.

[0008] Furthermore, the counterweight assembly includes a counterweight box, a second connecting rod, and a connecting rod. The counterweight box is slidably connected to the upper part of the outer shell, the second connecting rod is connected to the middle of the counterweight box, and the connecting rod is connected to the right side of the counterweight box.

[0009] Furthermore, it also includes latches, with both the left and right sides of the counterweight box connected by latches via damped sliding connections.

[0010] Furthermore, the deceleration assembly includes a disc, a first turntable, an elastic element, a telescopic rod, a second hook, a first connecting rod, a second rope, and a second turntable. The disc is connected to the upper right side of the outer casing, and the first turntable is rotatably connected to the disc. The telescopic rod is connected to the right side of the first turntable, and an elastic element is connected between the fixed end and the telescopic end of the telescopic rod. The second hook is rotatably connected to the front side of the telescopic rod, and the first connecting rod is rotatably connected to the lower part of the second hook. The second hook is also rotatably connected to the rear part of the first connecting rod. The second hook is rotatably connected to the first turntable and engages with the disc. The second turntable is rotatably connected to the upper right side of the base plate, and a second rope is wound between the second turntable and the first turntable. The connecting rod is connected to the second rope.

[0011] Furthermore, the elastic element is a spring.

[0012] The beneficial effects of this utility model are as follows: When the first turntable rotates rapidly, the second hook moves outward under the action of centrifugal force and engages with the turntable to fix the first turntable. This causes friction between the second rope and the first turntable, slowing down the movement speed of the second rope. This achieves the effect of slowing down the falling speed of the counterweight box, avoiding damage to surrounding equipment or products, and improving the safety of the test. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the roller and first rope components of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the spring and telescopic rod components of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the second connecting rod and pin components of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the second connecting rod and pin components of this utility model.

[0018] Reference numerals: 1_base plate, 2_outer shell, 3_motor, 4_roller, 5_first rope, 6_first hook, 7_disc, 8_first turntable, 9_spring, 10_telescopic rod, 11_second hook, 12_first connecting rod, 13_second rope, 14_second turntable, 15_counterweight box, 16_second connecting rod, 17_pin, 18_displacement sensor, 19_connecting rod. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] A robotic arm load capacity testing device, such as Figures 1-5 As shown, the device includes a base plate 1, a housing 2, a motor 3, a roller 4, a first rope 5, a first hook 6, a displacement sensor 18, a counterweight assembly, and a deceleration assembly. The housing 2 is connected to the upper side of the base plate 1, and the motor 3 is connected to the upper left side of the housing 2. The motor 3 and the processor are electrically connected through a control module. The roller 4 is connected to the output shaft of the motor 3 and is rotatably connected to the housing 2. The first rope 5 is wound around the roller 4 and passes through the housing 2. The first hook 6 is connected to the lower side of the first rope 5. The displacement sensor 18 is connected to the upper inner side of the housing 2. The housing 2 is equipped with a counterweight assembly and a deceleration assembly.

[0021] like Figure 1 , Figure 4 and Figure 5 As shown, the counterweight assembly includes a counterweight box 15, a second connecting rod 16, a pin 17, and a connecting rod 19. The counterweight box 15 is slidably connected to the upper part of the outer shell 2. The second connecting rod 16 is connected to the middle part of the counterweight box 15. The pins 17 are slidably connected to both the left and right sides of the counterweight box 15 through damping. The connecting rod 19 is connected to the right side of the counterweight box 15.

[0022] like Figures 1-3 As shown, the deceleration assembly includes a disc 7, a first turntable 8, an elastic element, a telescopic rod 10, a second hook 11, a first connecting rod 12, a second rope 13, and a second turntable 14. The disc 7 is connected to the upper right side of the outer casing 2. The first turntable 8 is rotatably connected to the disc 7. The telescopic rod 10 is connected to the right side of the first turntable 8. An elastic element, which is a spring 9, is connected between the fixed end and the telescopic end of the telescopic rod 10. The second hook 11 is rotatably connected to the front side of the telescopic rod 10. The first connecting rod 12 is rotatably connected to the lower part of the second hook 11. The second hook 11 is also rotatably connected to the rear part of the first connecting rod 12. The second hook 11 is rotatably connected to the first turntable 8. The second hook 11 is engaged with the disc 7. The second turntable 14 is rotatably connected to the upper right side of the base plate 1. The second rope 13 is wound between the second turntable 14 and the first turntable 8. The connecting rod 19 is connected to the second rope 13.

[0023] When using this utility model, first place the base plate 1 in the load capacity test area of ​​the robotic arm, then place the robotic arm on the base plate 1, so that the robotic arm is in front of the outer shell 2. Then push the pin 17 to move outward, and place the corresponding number of counterweights in the counterweight box 15. After placing them, push the pin 17 to move inward, so that the pin 17 limits and blocks the counterweights. The processor starts the motor 3 through the control module, drives the roller 4 to rotate, releases the first rope 5, and then hangs the first hook 6 on the counterweight box 15. Then, according to the gripping requirements of the robotic arm, rewind the first rope 5, and drive the counterweight box 15 to move upward through the first hook 6 to adjust the height of the counterweight box 15 so that the robotic arm can grip, lift or raise the counterweight box 15 horizontally. After adjustment, let the robotic arm grip the counterweight box 15 through the second link 16, and then release the first hook 6 so that the robotic arm bears the weight of the counterweight box 15. The displacement sensor 18 detects whether the robotic arm has moved, and judges the load capacity of the robotic arm. When the robotic arm is damaged due to overload, the counterweight box 15 moves downward, causing the connecting rod 19 to move downward as well. This causes the second rope 13 to rotate the first turntable 8 and the second turntable 14. When the first turntable 8 rotates rapidly, the second hook 11 moves outward under the action of centrifugal force. The first connecting rod 12 moves along with it, the telescopic rod 10 retracts, and the spring 9 is compressed and retracted, causing the second hook 11 to engage with the disc 7 and fix the first turntable 8. This generates friction between the second rope 13 and the first turntable 8, slowing down the movement speed of the second rope 13. This slows down the falling speed of the counterweight box 15, preventing damage to surrounding equipment or products and improving test safety. When the rotation speed of the first turntable 8 slows down, the spring 9 rebounds, causing the telescopic rod 10 to return to its original position, and then the second hook 11 resets and disengages from the disc 7.

[0024] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for testing the load capacity of a robotic arm, characterized in that, The device includes a base plate (1), a shell (2), a motor (3), a roller (4), a first rope (5), a first hook (6), a displacement sensor (18), a counterweight assembly, and a deceleration assembly. The upper side of the base plate (1) is connected to the shell (2), the upper left side of the shell (2) is connected to the motor (3), the output shaft of the motor (3) is connected to the roller (4), the roller (4) is rotatably connected to the shell (2), the first rope (5) is wound around the roller (4), the first rope (5) passes through the shell (2), the lower side of the first rope (5) is connected to the first hook (6), the upper inner side of the shell (2) is connected to the displacement sensor (18), the shell (2) is provided with a counterweight assembly that can adjust the counterweight of the robotic arm, and the shell (2) is also provided with a deceleration assembly that can slow down the falling speed of the counterweight assembly.

2. The robotic arm load capacity testing device according to claim 1, characterized in that, The motor (3) and the processor are electrically connected through the control module.

3. The robotic arm load capacity testing device according to claim 1, characterized in that, The counterweight assembly includes a counterweight box (15), a second connecting rod (16) and a connecting rod (19). The counterweight box (15) is slidably connected to the upper part of the outer shell (2), the second connecting rod (16) is connected to the middle part of the counterweight box (15), and the connecting rod (19) is connected to the right side of the counterweight box (15).

4. The robotic arm load capacity testing device according to claim 3, characterized in that, It also includes a pin (17), and the left and right sides of the counterweight box (15) are connected by a damped sliding pin (17).

5. The robotic arm load capacity testing device according to claim 1, characterized in that, The deceleration assembly includes a disc (7), a first turntable (8), an elastic element, a telescopic rod (10), a second hook (11), a first connecting rod (12), a second rope (13), and a second turntable (14). The disc (7) is connected to the upper right side of the outer casing (2). The first turntable (8) is rotatably connected to the disc (7). The telescopic rod (10) is connected to the right side of the first turntable (8). An elastic element is connected between the fixed end and the telescopic end of the telescopic rod (10). The second hook is rotatably connected to the front side of the telescopic rod (10). (11) The lower part of the second hook (11) is rotatably connected to the first connecting rod (12), and the rear part of the first connecting rod (12) is also rotatably connected to the second hook (11). The second hook (11) is rotatably connected to the first turntable (8). The second hook (11) is engaged with the disc (7). The upper right side of the base plate (1) is rotatably connected to the second turntable (14). The second rope (13) is wound between the second turntable (14) and the first turntable (8). The connecting rod (19) is connected to the second rope (13).

6. The robotic arm load capacity testing device according to claim 5, characterized in that, The elastic element is a spring (9).

Images