Manipulator for thin-wall part
By introducing worm gear transmission and telescopic spring structure into the robotic hand, the problem of deformation and damage to thin-walled parts caused by excessive clamping rigidity is solved, achieving stable clamping force control and part protection, and extending service life.
Patent Information
- Application Number
- CN202423301499.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-31
AI Technical Summary
When existing robotic arms grip thin-walled parts, excessive rigid force causes plastic deformation and damage to the parts, resulting in reduced fatigue life.
A robotic arm was designed, employing a clamping structure that combines a worm gear transmission system with a telescopic spring. The worm is driven by a motor, which in turn drives the worm wheel and connecting rod. The telescopic spring absorbs rigid force, and the rubber and wear-resistant layers protect the parts, ensuring a stable and appropriate clamping force and preventing deformation and damage.
It effectively reduces the risk of plastic deformation and damage to thin-walled parts, improves the accuracy of clamping force control, extends the fatigue life of parts, and improves the stability of cable layout.
Smart Images
Figure CN223507191U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thin-walled parts handling technology, and in particular to a robotic arm for thin-walled parts. Background Technology
[0002] In modern manufacturing, the processing and assembly of thin-walled parts is a crucial production link, playing a vital role. With the continuous evolution of manufacturing technology and the ever-increasing demands for product precision across industries, the application of thin-walled parts is becoming increasingly widespread. Thin-walled parts offer advantages such as light weight, high material utilization, and compact structure. In the production process of thin-walled parts, the handling and manipulation stages are of paramount importance. Traditional manual handling methods face numerous challenges. Due to the thin walls and poor rigidity of thin-walled parts, uneven force during manual operation can easily lead to deformation or even damage, severely impacting product yield and production efficiency. To solve the challenges of handling thin-walled parts, robotic arms have emerged.
[0003] Most robotic arms are composed of components such as an assembly plate, a receiving plate, a drive source, a robotic arm, and a clamping block. In use, the device is first installed using the assembly plate, then the drive source in the receiving plate is used to move the robotic arm, and finally the clamping block is used to clamp the thin-walled parts to complete the handling of the parts.
[0004] In the prior art, some robotic arms, when clamping thin-walled parts, may cause plastic deformation of the parts due to excessive rigidity during clamping, which directly leads to damage to the thin-walled parts and reduces their fatigue life. Therefore, in order to address the above shortcomings, a robotic arm for thin-walled parts is proposed. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a robotic arm for thin-walled parts. This invention aims to improve the problems caused by excessive clamping rigidity of existing robotic arms, which leads to plastic deformation, damage, and reduced fatigue life of thin-walled parts.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A robotic arm for thin-walled parts includes an assembly plate. A drive assembly is fixedly connected to the top of the assembly plate. A robotic arm is mounted on the top of the drive assembly. A rotating block is mounted on the right end of the robotic arm. A receiving block is fixedly connected to the right end of the rotating block. A motor is fixedly connected to the left end of the receiving block. A worm gear is fixedly connected to the drive end of the motor. A bearing is fixedly connected to the right end of the worm gear. Worm wheels are rotatably connected to the right ends of both the front and rear sides of the receiving block. A connecting rod is fixedly connected to the outside of the worm wheel. A connecting plate is rotatably connected to the right end of the connecting rod. Two telescopic rods are fixedly connected inside the connecting plate. A telescopic spring is sleeved on the outside of the telescopic rods. Two clamping plates are fixedly connected to adjacent sides of the plurality of telescopic rods.
[0008] Furthermore, the drive assembly includes a receiving plate, the bottom end of which is fixedly connected to the top end of the assembly plate, and a drive source is fixedly connected inside the receiving plate, the drive end of which is fixedly connected to the receiving end of the robotic arm.
[0009] Furthermore, the robotic arm is externally fixedly connected to multiple connecting plates, and a sliding rod is slidably connected to the front end of each connecting plate. A strong spring is sleeved on the outside of the sliding rod, a wire harness block is fixedly connected to one end of the sliding rod, and a baffle is fixedly connected to the other end of the sliding rod.
[0010] Furthermore, the bearing is externally fixedly connected to the inside right side of the receiving block, and the worm gear is externally rotatably connected to the inside right side of the receiving block.
[0011] Furthermore, the worm and the worm wheel are meshed together, and the two connecting rods are movably connected to the front and rear sides of the right end of the receiving block, respectively.
[0012] Furthermore, one end of the telescopic spring is fixedly connected to one side of the connecting plate, and the other end of the telescopic spring is fixedly connected to one side of the clamping plate.
[0013] Furthermore, the clamping plate has a rubber layer on the side that contacts the part, and a wear-resistant layer on the side that connects the clamping plate to the connecting rod.
[0014] Furthermore, when the two wire-bundling blocks are not wired, their adjacent sides are in contact, and one side of the baffle is in contact with one side of the connecting plate.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the motor drives the worm gear to move the two worm wheels, which in turn causes the connecting rod to drive the connecting plate to apply force to the clamping plate. With the cooperation of the telescopic spring, the rigid force can be absorbed, thereby reducing the risk of plastic deformation or damage to the parts due to rigid impact. It also keeps the clamping force at a relatively stable and appropriate level, further improving the accuracy of clamping force control for thin-walled parts, effectively protecting the thin-walled parts and extending their fatigue life.
[0017] 2. In this utility model, by placing the cable on one side of two cable bundling holes that are close to each other, and then with the help of a strong spring, the cable can be restricted to a reasonable position near the cable bundling holes, so as to prevent the cable from shaking or shifting at will, avoid the cable from shaking at will and rubbing against other mechanical parts, which would cause wear on the cable sheath, and improve the stability of the cable arrangement. Attached Figure Description
[0018] Figure 1 This is a perspective view of a robotic arm for thin-walled parts proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of a receiving plate structure for a robotic arm used for thin-walled parts, as proposed in this utility model.
[0020] Figure 3 for Figure 2 Enlarged view of point A in the image;
[0021] Figure 4 for Figure 2 Enlarged view of point B in the image.
[0022] Legend:
[0023] 1. Assembly plate; 2. Receiving plate; 3. Robotic arm; 4. Rotating block; 5. Receiving block; 6. Motor; 7. Worm gear; 8. Bearing; 9. Worm wheel; 10. Connecting rod; 11. Connecting plate; 12. Telescopic rod; 13. Telescopic spring; 14. Clamping plate; 15. Connecting plate; 16. Sliding rod; 17. Strong spring; 18. Wire harness block; 19. Baffle. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figures 1 to 3This utility model provides an embodiment of a robotic arm for thin-walled parts, comprising an assembly plate 1. The assembly plate 1 serves as the basic mounting component of the entire robotic arm, playing a crucial role in securely mounting the robotic arm on the work site or equipment. A drive assembly is fixedly connected to the top of the assembly plate 1, and a robotic arm 3 is mounted on the top of the drive assembly. The drive assembly includes a receiving plate 2, whose main function is to provide a closed and stable mounting space for the drive source. It isolates the drive source from the external environment to a certain extent, reducing interference from external factors and protecting the drive source from impacts, dust, etc., ensuring that the drive source can operate stably and output power. The bottom end of the receiving plate 2 is fixedly connected to the top of the assembly plate 1, and the drive source is fixedly connected inside the receiving plate 2. The drive end of the drive source is fixedly connected to the receiving end of the robotic arm 3.
[0026] A rotating block 4 is provided at the right end of the robotic arm 3. A receiving block 5 is fixedly connected to the right end of the rotating block 4. A motor 6 is fixedly connected to the left end of the receiving block 5. A worm 7 is fixedly connected to the drive end of the motor 6. A bearing 8 is fixedly connected to the right end of the worm 7. The bearing 8 is fixedly connected to the right side of the receiving block 5. The worm 7 is rotatably connected to the right side of the receiving block 5. Worm wheels 9 are rotatably connected to the right ends of both the front and rear sides of the receiving block 5. The worm 7 and the worm wheel 9 are meshed. A connecting rod 10 is fixedly connected to the outside of the worm wheel 9. The two connecting rods 10 are movably connected to the front and rear sides of the right end of the receiving block 5 on their respective sides. A connecting plate 11 is rotatably connected to the right end of the connecting rod 10.
[0027] Two telescopic rods 12 are fixedly connected inside the connecting plate 11. A telescopic spring 13 is sleeved on the outside of the telescopic rod 12. The telescopic spring 13 plays a role in buffering and adaptive adjustment during clamping. Two clamping plates 14 are fixedly connected to the adjacent sides of the multiple telescopic rods 12. One end of the telescopic spring 13 is fixedly connected to one side of the connecting plate 11, and the other end of the telescopic spring 13 is fixedly connected to one side of the clamping plate 14. A rubber layer is provided on the side of the clamping plate 14 that is in contact with the part. The rubber layer can increase the friction between the clamping plate 14 and the thin-walled part, preventing the part from slipping during gripping. At the same time, its softness can avoid scratching or indentation damage to the surface of the part during clamping. A wear-resistant layer is provided on the side of the clamping plate 14 that is connected to the connecting rod 10. This is to reduce the wear of the clamping plate 14 caused by friction during frequent clamping and releasing operations, extend the service life of the clamping plate 14, and ensure the long-term stable operation of the robot.
[0028] Reference Figure 1 , Figure 2 and Figure 4The robotic arm 3 is externally fixedly connected to multiple connecting plates 15, providing an installation base for cable management. A sliding rod 16 is slidably connected to the front end of the connecting plate 15. A strong spring 17 is sleeved on the outside of the sliding rod 16, which can adaptively adjust according to the state of the cable. A cable bundle block 18 is fixedly connected to one end of the sliding rod 16. When there is no cable bundle on the adjacent side of the two cable bundle blocks 18, they are in contact. A baffle 19 is fixedly connected to the other end of the sliding rod 16. The baffle 19 serves as a limit to prevent the sliding rod 16 from sliding excessively. One side of the baffle 19 is in contact with one side of the connecting plate 15.
[0029] Working Principle: Assembly plate 1 provides a stable mounting base for the entire robotic arm, and the drive assembly at its top begins to operate. The drive source within the receiving plate 2 is activated, driving the robotic arm 3 to move accordingly, allowing the robotic arm 3 to accurately position itself near the thin-walled part. Then, motor 6 is activated, driving the worm gear 7 to rotate. The worm gear 7 rotates inside the right side of the receiving block 5, and the rotation of the worm gear 7 drives the worm wheel 9, which meshes with it, to move. The rotation of the worm wheel 9 drives the connecting rod 10, which is fixedly connected to its outside, to move. The connecting rod 10 is movably connected and rotates inside the front and rear sides of the right end of the receiving block 5, thereby driving the connecting plate 11 to move, connecting... The telescopic rod 12 inside the connecting plate 11 moves with the movement of the connecting plate 11. At this time, the telescopic spring 13 sleeved on the outside of the telescopic rod 12 plays a role. One end of the telescopic spring 13 is fixed to one side of the connecting plate 11, and the other end is fixed to one side of the clamping plate 14. During the process of the connecting plate 11 applying force to the clamping plate 14, the telescopic spring 13 can absorb rigid force and avoid excessive instantaneous force directly acting on the thin-walled parts. The rubber layer on the side of the clamping plate 14 that contacts the parts prevents damage to the surface of the parts, and the wear-resistant layer on the side connected to the connecting rod 10 reduces wear.
[0030] When organizing cables, place the cables on one side of two cable management blocks 18 that are close to each other. The cable management blocks 18 will be restrained in a reasonable position near the cable management holes by the elastic restoring force of the strong springs 17. Specifically, when the cables are subjected to external tension or displacement due to equipment vibration, the cable management blocks 18 will move under the action of the strong springs 17. This ensures the stability and coordination of each component under force, prevents the cables from shaking or shifting randomly, prevents the cables from rubbing against other mechanical parts and causing wear on the outer sheath, and improves the stability of the cable arrangement.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A robotic arm for thin-walled parts, comprising an assembly plate (1), characterized in that: A drive assembly is fixedly connected to the top of the assembly plate (1). A mechanical arm (3) is provided at the top of the drive assembly. A rotating block (4) is provided at the right end of the mechanical arm (3). A receiving block (5) is fixedly connected to the right end of the rotating block (4). A motor (6) is fixedly connected to the left end of the receiving block (5). A worm gear (7) is fixedly connected to the drive end of the motor (6). A bearing (8) is fixedly connected to the right end of the worm gear (7). Worm wheels (9) are rotatably connected to the right ends of both the front and rear sides of the receiving block (5). A connecting rod (10) is fixedly connected to the outside of the worm wheel (9). A connecting plate (11) is rotatably connected to the right end of the connecting rod (10). Two telescopic rods (12) are fixedly connected inside the connecting plate (11). A telescopic spring (13) is sleeved on the outside of the telescopic rods (12). Two clamping plates (14) are fixedly connected to the adjacent sides of the multiple telescopic rods (12).
2. The robotic arm for thin-walled parts according to claim 1, characterized in that: The drive assembly includes a receiving plate (2), the bottom end of which is fixedly connected to the top end of the assembly plate (1), and a drive source is fixedly connected inside the receiving plate (2), the drive end of which is fixedly connected to the receiving end of the robotic arm (3).
3. A robotic arm for thin-walled parts according to claim 1, characterized in that: The robotic arm (3) is fixedly connected to a plurality of connecting plates (15). A sliding rod (16) is slidably connected to the front end of the connecting plate (15). A strong spring (17) is sleeved on the outside of the sliding rod (16). A wire harness block (18) is fixedly connected to one end of the sliding rod (16), and a baffle (19) is fixedly connected to the other end of the sliding rod (16).
4. A robotic arm for thin-walled parts according to claim 1, characterized in that: The bearing (8) is externally fixedly connected to the inside right side of the receiving block (5), and the worm (7) is externally rotatably connected to the inside right side of the receiving block (5).
5. A robotic arm for thin-walled parts according to claim 1, characterized in that: The worm (7) and worm wheel (9) are meshed together, and the two connecting rods (10) are movably connected to the front and rear sides of the right end of the receiving block (5) on their respective sides.
6. A robotic arm for thin-walled parts according to claim 1, characterized in that: One end of the telescopic spring (13) is fixedly connected to one side of the connecting plate (11), and the other end of the telescopic spring (13) is fixedly connected to one side of the clamping plate (14).
7. A robotic arm for thin-walled parts according to claim 1, characterized in that: The clamping plate (14) has a rubber layer on the side that contacts the part, and a wear-resistant layer on the side that connects the clamping plate (14) to the connecting rod (10).
8. A robotic arm for thin-walled parts according to claim 3, characterized in that: When the two wire-bundling blocks (18) are not wired, they are in contact with each other on their adjacent sides. One side of the baffle (19) is in contact with one side of the connecting plate (15).