Mechanical arm with function module convenient to replace

Abstract

The utility model relates to the technical field of mechanical arms, and discloses a mechanical arm with a function module convenient to replace, which comprises a mechanical arm main body, the driving end of the mechanical arm main body is fixedly connected with an adjusting bin, the inner wall of the rear end of the adjusting bin is rotatably connected with a transmission rod and penetrates through the inner side and the outer side of the adjusting bin, and the rear end of the transmission rod is fixedly connected with a switching column. And a cross rod is fixedly connected to the middle of the rear end of the transfer column. According to the device, under the cooperation of the clamping block, the sliding disc, the clamping groove, the baffle, the first spring and the traction frame, limiting of the sleeving ring is relieved, then the sleeving ring is rotated, the positions of a plurality of through-body columns on the outer wall of the sleeving ring are adjusted, the positions of different tools installed on the tool installing base are adjusted, and when the needed tools move to one side of an opening of the protective cover, the tool installing base is fixed. And then reverse operation is conducted, the adjusted position of the sleeving ring is limited, and therefore switching of the functional modules of the mechanical arm body is completed, and diversified operation requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, specifically a robotic arm with easily replaceable functional modules. Background Technology

[0002] A robotic arm is a mechanical device that can mimic the movements of a human arm. It plays a crucial role in many fields such as industrial production, medical surgery, and space exploration. In today's industrial manufacturing and operation scenarios, robotic arms have become an indispensable key component of automated production processes.

[0003] However, traditional robotic arms have certain limitations in industrial applications. The operating tools on their drive-end functional modules are often fixed and single, so the functions produced by the robotic arm during operation are also single. Once the production task changes, it is difficult to make adaptive adjustments to the functional modules due to the inconvenience of switching operating tools, and thus cannot flexibly meet diverse operational needs.

[0004] In order to meet diverse operational needs, this application proposes a robotic arm with easily replaceable functional modules. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a robotic arm with easy-to-replace functional modules, which can make adaptive adjustments to the functional modules to meet diverse operational needs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a robotic arm with easily replaceable functional modules, comprising a robotic arm body, an adjustment chamber fixedly connected to the drive end of the robotic arm body, a transmission rod rotatably connected to the inner wall of the rear end of the adjustment chamber and passing through both the inner and outer sides of the adjustment chamber, a transition column fixedly connected to the rear end of the transmission rod, a protective cover fixedly connected to the rear side of the outer wall of the transition column, a crossbar fixedly connected to the middle of the rear end of the transition column, a baffle fixedly connected to the rear end of the crossbar, a sleeve ring rotatably connected to the front side of the outer wall of the crossbar, a sliding plate slidably connected to the rear side of the outer wall of the crossbar, slots being provided at all four ends of the outer wall of the sliding plate, and locking blocks fixedly connected to all four sides of the rear end of the sleeve ring, the shape of the outer wall of the locking blocks matching the shape of the inner wall of the slots, connecting blocks fixedly connected to all four ends of the outer wall of the sleeve ring, a through column fixedly connected to the outward end of each connecting block, and a fixture seat provided at the outward end of each through column.

[0007] Further description: A spring is fixedly connected to the rear end of the slide plate outside the crossbar. The rear end of the spring is fixedly connected to the front end of the baffle. A traction frame is fixedly connected to the rear end of the slide plate on both the upper and lower sides of the baffle. Here, the traction frame facilitates the technician to pull the slide plate. When the slide plate is pulled, it compresses the spring, thereby generating elastic potential energy to help it return to its original position.

[0008] Further description: Each of the outer walls of the column is fixedly connected to a sliding cavity cylinder near the fixture seat, and each of the inner walls of the sliding cavity cylinder is slidably connected to a pressure plate. Each of the columns has a square groove at one end facing outwards. Here, the outer wall of the pressure plate is rectangular, and one end of the sliding cavity cylinder has an opening.

[0009] Further description: Each of the fixture seats has a magnetic block fixedly connected to one end. The shape of the outer wall of the magnetic block matches the shape of the inner wall of the square groove. Insertion holes are opened on the side of the outer wall of the fixture seat near the sliding cavity cylinder. Here, the entire column itself is made of metal. Therefore, after the magnetic block is inserted into the square groove, it will form a simple limit between the fixture seat and the entire column.

[0010] Further description: Each of the outer walls of the pressure plate is fixedly connected to a movable plate on the side near the fixture seat, and each of the outer walls of the movable plate is fixedly connected to a plug on the side near the fixture seat. The shape of the outer wall of the plug matches the shape of the inner wall of the insertion hole. Here, the outer wall of the plug is cylindrical, and different tools are installed at one end of the fixture seat.

[0011] Further description: Each pressure plate has a pull rod fixedly connected to its outer end. The outer wall of each pull rod is slidably connected to the inner wall of the outer end of the sliding cavity. Each pressure plate has a spring two fixedly connected to its outer end outside the pull rod. The other end of each spring two is fixedly connected to the inner wall of the sliding cavity. Here, one part of the pull rod is bent to facilitate pulling by technicians. When the spring two is compressed, it will generate elastic potential energy.

[0012] Further description: A rubber band is fixedly connected to the outer end of the sliding cavity near the inner side of the sliding cavity, and a rubber ring is fixedly connected to the other end of the rubber band. The inner wall of the rubber ring is fitted inside the outer wall of the pull rod. Here, the rubber ring fitted inside the outer wall of the pull rod can further limit the degree of movement of the pull rod and prevent the pull rod from being displaced due to the shaking of the robotic arm.

[0013] Further description: A motor is fixedly connected to the bottom of the regulating chamber, and a driving bevel gear is fixedly connected to the driving end of the motor. A driven bevel gear is meshed with the rear end of the outer diameter of the driving bevel gear, and the inner wall of the driven bevel gear is fixedly connected to the front side of the outer wall of the transmission rod. Here, there is a transmission connection between the bevel gears, and the meshing teeth are engaged with each other. The motor acts as a driving source and provides power for the rotation of the driving bevel gear when it starts.

[0014] Beneficial effects:

[0015] 1. In this utility model, the limiting position of the sleeve ring is released through the cooperation of the locking block, sliding plate, locking groove, baffle, spring, and traction frame. Then, the sleeve ring is rotated to adjust the position of multiple through columns on the outer wall of the sleeve ring, thereby adjusting the position of different tools installed on the fixture seat. When the required tool is moved to the side of the protective cover opening, the operation is reversed to limit the adjusted position of the sleeve ring, thereby completing the switching of the main functional modules of the robotic arm and meeting diverse operational needs.

[0016] 2. In this utility model, the tool holder is released from its limit position on one end of the column by the cooperation of the sliding cavity, pressure plate, pull rod, spring, movable plate, plug and hole, so that the tool holder and the tool installed on one end can be removed for tool maintenance and to improve tool service life. Attached Figure Description

[0017] Figure 1 This is a perspective view of a robotic arm with easily replaceable functional modules according to the present invention.

[0018] Figure 2 This is a cross-sectional view of the adjustment compartment of a robotic arm that facilitates the replacement of functional modules according to this utility model.

[0019] Figure 3 This is a cross-sectional view of a protective cover for a robotic arm that facilitates the replacement of functional modules, according to the present invention.

[0020] Figure 4 This is a cross-sectional view of the collar of a robotic arm that facilitates the replacement of functional modules according to the present invention.

[0021] Figure 5 This is a schematic diagram of the fixture base structure of a robotic arm that facilitates the replacement of functional modules according to the present invention.

[0022] Figure 6 This is a schematic diagram of the all-column structure of a robotic arm that facilitates the replacement of functional modules according to this utility model.

[0023] Figure 7 This is a cross-sectional view of the sliding cavity of a robotic arm that facilitates the replacement of functional modules according to this utility model.

[0024] In the diagram: 1. Main body of the robotic arm; 2. Adjustment chamber; 3. Adapter column; 4. Protective cover; 5. Transmission rod; 6. Motor; 7. Driving bevel gear; 8. Driven bevel gear; 9. Connecting block; 10. Through column; 11. Sleeve ring; 12. Fixture base; 13. Sliding cavity; 14. Crossbar; 15. Baffle; 16. Locking block; 17. Slide plate; 18. Locking groove; 19. Spring 1; 20. Traction frame; 21. Insertion hole; 22. Magnetic block; 23. Movable plate; 24. Insert bolt; 25. Square slot; 26. Pull rod; 27. Spring 2; 28. Pressure plate; 29. ​​Rubber belt; 30. Rubber ring. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] Please see Figures 1-4 A robotic arm with easily replaceable functional modules includes a robotic arm body 1. An adjustment chamber 2 is fixedly connected to the drive end of the robotic arm body 1. A transmission rod 5 is rotatably connected to the inner wall of the rear end of the adjustment chamber 2 and passes through both the inner and outer sides of the adjustment chamber 2. A motor 6 is fixedly connected to the bottom end of the adjustment chamber 2. A driving bevel gear 7 is fixedly connected to the drive end of the motor 6. A driven bevel gear 8 is meshed with the rear end of the outer diameter of the driving bevel gear 7. The inner wall of the driven bevel gear 8 is fixedly connected to the front side of the outer wall of the transmission rod 5. A transition post 3 is fixedly connected to the rear end of the transmission rod 5. A protective cover 4 is fixedly connected to the rear side of the outer wall of the transition post 3. A crossbar 14 is fixedly connected to the middle of the rear end of the transition post 3. A baffle 15 is fixedly connected to the rear end of the crossbar 14. A sleeve ring 11 is rotatably connected to the front side of the wall. A slide plate 17 is slidably connected to the rear side of the outer wall of the crossbar 14. The four ends of the outer wall of the slide plate 17 are provided with slots 18. The four sides of the rear end of the sleeve ring 11 are fixedly connected with blocks 16. The shape of the outer wall of the blocks 16 matches the shape of the inner wall of the slots 18. The rear end of the slide plate 17 is fixedly connected to a spring 19 outside the crossbar 14. The rear end of the spring 19 is fixedly connected to the front end of the baffle 15. The rear end of the slide plate 17 is fixedly connected to the upper and lower sides of the baffle 15. The four ends of the outer wall of the sleeve ring 11 are fixedly connected with connecting blocks 9. The outer end of the connecting blocks 9 is fixedly connected to a through column 10. The outer end of the through column 10 is provided with a fixture seat 12.

[0028] To further explain, after the main body 1 of the robotic arm is installed at a specific workstation, all its related drive devices are connected to the external control console to achieve effective control of each drive component. Multiple fixture seats 12 are provided on the four sides of the socket ring 11. These fixture seats 12 can be used to install tools with different functions, such as electric screwdrivers, electric cutting saws, and clamps. One end of the fixture seat 12 is connected to the tool using nuts and bolts. According to the specific needs of the assembly line operation, the tool position can be flexibly adjusted to move the required tool to the opening side of the protective cover 4 to achieve the switching of the functional modules of the main body 1 of the robotic arm. The remaining unused tools are covered by the rest of the protective cover 4 to prevent damage due to accidental collisions during operation.

[0029] When adjusting the position of the tool, first manually pull the traction frame 20. At this time, the slide plate 17 will slide along the outer wall of the crossbar 14 and squeeze the spring 19, causing the slot 18 to disengage from the outside of the block 16, thereby releasing the restriction on the block 16 and the sleeve ring 11. Then, push any through column 10, which will drive the sleeve ring 11 to rotate through the connecting block 9 until the target tool, its fixture seat 12, and the through column 10 are precisely positioned on one side of the opening of the protective cover 4 and remain horizontal. Then, release the traction frame 20. Under the elastic force of the spring 19, the traction frame 20 will reset and push the slot 18 on the slide plate 17 to re-engage with the outside of the block 16, completing the limit of this adjustment operation and realizing the switching of the functional modules of the robotic arm body 1.

[0030] Example 2

[0031] Please see Figures 5-7 Further, based on Embodiment 1, each of the outer walls of the column 10 near the fixture base 12 is fixedly connected to a sliding cavity cylinder 13, and each of the inner walls of the sliding cavity cylinder 13 is slidably connected to a pressure plate 28. Each of the columns 10 has a square groove 25 at its outward end, and each of the fixture bases 12 has a magnetic block 22 fixedly connected to its inward end. The shape of the outer wall of the magnetic block 22 matches the shape of the inner wall of the square groove 25. Each of the fixture bases 12 has an insertion hole 21 at its outer wall near the sliding cavity cylinder 13, and each of the pressure plates 28 has a movable plate 23 fixedly connected to its outer wall near the fixture base 12. Each of the movable plates 23 has a fixed insertion hole 21 at its outer wall near the fixture base 12. A bolt 24 is fixedly connected, and the shape of the outer wall of the bolt 24 matches the shape of the inner wall of the insertion hole 21. A pull rod 26 is fixedly connected to the outer end of the pressure plate 28. The outer wall of the pull rod 26 is slidably connected to the inner wall of the outer end of the sliding cavity cylinder 13. A spring 27 is fixedly connected to the outer end of the pressure plate 28 outside the pull rod 26. The other end of the spring 27 is fixedly connected to the inner wall of the sliding cavity cylinder 13. A rubber band 29 is fixedly connected to the outer end of the sliding cavity cylinder 13 near the inner side of the sliding cavity cylinder 13. A rubber ring 30 is fixedly connected to the other end of the rubber band 29. The inner wall of the rubber ring 30 is sleeved on the inner side of the outer wall of the pull rod 26.

[0032] To further explain, when maintaining the tools on the fixture base 12, first remove the rubber ring 30 from the pull rod 26 to release the movement restriction on the pull rod 26. Then pull the pull rod 26 to make it slide the pressure plate 28 in the sliding cavity 13 and squeeze the spring 27. The movable plate 23 moves with the pressure plate 28, causing the plug 24 to disengage from the insertion hole 21 and release the restriction on the fixture base 12. At this time, the fixture base 12 can be removed from one end of the through column 10, and the magnetic block 22 can be pulled out from the square slot 25. After removing the fixture base 12, the tools on the fixture base 12 can be maintained to extend the service life of the tools. The through column 10 itself is made of metal, so after the magnetic block 22 is inserted into the square slot 25, it will form a simple restriction between the fixture base 12 and the through column 10.

[0033] In actual operation, the motor 6 is started by operating the control console. The motor 6 drives the active bevel gear 7 to rotate, and the driven bevel gear 8 meshing with it drives the transmission rod 5 to rotate, which in turn causes the adapter column 3 to drive the tool to rotate. The angle of the tool during operation can be flexibly adjusted. The control console is operated to start the electric drive source connected to the tool, so that the tool can produce a running effect. In conjunction with the overall operation of the robotic arm body 1, the corresponding work task is completed.

[0034] Working principle: First, after the robotic arm body 1 is installed at the designated workstation, all the relevant drive devices on the robotic arm body 1 are connected to the external control console one by one, so as to realize the control of each drive component. Different tools are installed on the multiple fixture seats 12 located on the four sides of the socket ring 11. According to the needs of the assembly line operation, the required tools are moved to the opening side of the protective cover 4, so that the functional modules of the robotic arm body 1 can be switched. The remaining tools are covered by the remaining part of the protective cover 4 to protect them and prevent them from being bumped and damaged during operation.

[0035] When adjusting the position of the tool, first pull the traction frame 20 so that the slide plate 17 slides on the outer wall of the crossbar 14 and squeezes the spring 19, causing the slot 18 to disengage from the outside of the block 16, thereby releasing the limit on the block 16 and the sleeve ring 11. Then push any through column 10 so that it drives the sleeve ring 11 to rotate through the connecting block 9 until the required tool and its fixture seat 12 and through column 10 are on the side of the opening of the protective cover 4. Keep it horizontal and release the traction frame 20 so that the traction frame 20 resets under the elastic action of the spring 19, thereby pushing the slot 18 on the slide plate 17 to re-lock on the outside of the block 16, thus forming the limit after the adjustment operation, thereby completing the switching of the functional modules of the robotic arm body 1.

[0036] When maintaining the tools installed on the fixture base 12, the rubber ring 30 can be removed from the pull rod 26 to release the movement restriction of the pull rod 26. Then, pull the pull rod 26 to make it slide the pressure plate 28 in the sliding cavity 13 and squeeze the spring 27. The movable plate 23 moves with the pressure plate 28 and drives the plug 24 to disengage from the insertion hole 21, thereby releasing the restriction on the fixture base 12. Then, the fixture base 12 is removed from one end of the through column 10, and the magnet 22 is pulled out from the square groove 25. Then, the tools on the fixture base 12 can be maintained to improve the service life of the tools.

[0037] The motor 6 is started by operating the control console, which drives the active bevel gear 7 to rotate. The driven bevel gear 8, which meshes with one end of the active bevel gear 7, drives the transmission rod 5 to rotate, thereby causing the adapter column 3 to rotate with the tool. This adjusts the angle of the tool during operation and, in conjunction with the operation of the robotic arm body 1, completes the corresponding task.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A robotic arm with easily replaceable functional modules, comprising a robotic arm body (1), characterized in that: The main body (1) of the robotic arm is fixedly connected to an adjustment chamber (2) at its drive end. A transmission rod (5) is rotatably connected to the inner wall of the rear end of the adjustment chamber (2) and passes through both the inner and outer sides of the adjustment chamber (2). A transition column (3) is fixedly connected to the rear end of the transmission rod (5). A protective cover (4) is fixedly connected to the rear side of the outer wall of the transition column (3). A crossbar (14) is fixedly connected to the middle of the rear end of the transition column (3). A baffle (15) is fixedly connected to the rear end of the crossbar (14). A sleeve ring (11) is rotatably connected to the front side of the outer wall of the crossbar (14). The crossbar (14) is slidably connected to the rear side of the outer wall of the slide plate (17). The slide plate (17) has slots (18) at all four ends of its outer wall. The sleeve ring (11) is fixedly connected to the four sides of its rear end with a locking block (16). The shape of the outer wall of the locking block (16) matches the shape of the inner wall of the slot (18). The sleeve ring (11) is fixedly connected to the four ends of its outer wall with a connecting block (9). The connecting block (9) is fixedly connected to a through column (10) at one end of its outer side. The through column (10) is provided with a fixture seat (12) at one end of its outer side.

2. The robotic arm with easily replaceable functional modules according to claim 1, characterized in that: The rear end of the slide (17) is fixedly connected to a spring (19) outside the crossbar (14), the rear end of the spring (19) is fixedly connected to the front end of the baffle (15), and the rear end of the slide (17) is fixedly connected to a traction frame (20) on the upper and lower sides of the baffle (15).

3. The robotic arm with easily replaceable functional modules according to claim 1, characterized in that: The outer wall of the through column (10) near the fixture seat (12) is fixedly connected to a sliding cavity cylinder (13), and the inner wall of the sliding cavity cylinder (13) is slidably connected to a pressure plate (28). The outer end of the through column (10) is provided with a square groove (25).

4. The robotic arm with easily replaceable functional modules according to claim 1, characterized in that: Each fixture base (12) is fixedly connected to a magnetic block (22) at one end. The shape of the outer wall of the magnetic block (22) matches the shape of the inner wall of the square groove (25). An insertion hole (21) is provided on the side of the outer wall of the fixture base (12) near the sliding cavity cylinder (13).

5. A robotic arm with easily replaceable functional modules according to claim 3, characterized in that: The outer wall of the pressure plate (28) is fixedly connected to the side of the fixture seat (12) with a movable plate (23), and the outer wall of the movable plate (23) is fixedly connected to the side of the fixture seat (12) with a plug (24). The shape of the outer wall of the plug (24) matches the shape of the inner wall of the socket (21).

6. A robotic arm with easily replaceable functional modules according to claim 3, characterized in that: Each pressure plate (28) is fixedly connected to a pull rod (26) at one end. The outer wall of the pull rod (26) is slidably connected to the inner wall of the outer end of the sliding cavity (13). Each pressure plate (28) is fixedly connected to a spring (27) at one end outside the pull rod (26). The other end of the spring (27) is fixedly connected to the inner wall of the sliding cavity (13).

7. A robotic arm with easily replaceable functional modules according to claim 3, characterized in that: A rubber band (29) is fixedly connected to the outer end of the sliding cavity (13) near the inner side of the sliding cavity (13), and a rubber ring (30) is fixedly connected to the other end of the rubber band (29). The inner wall of the rubber ring (30) is sleeved on the inner side of the outer wall of the pull rod (26).

8. A robotic arm with easily replaceable functional modules according to claim 1, characterized in that: The bottom end of the regulating chamber (2) is fixedly connected to a motor (6), the drive end of the motor (6) is fixedly connected to a drive bevel gear (7), the rear end of the outer diameter of the drive bevel gear (7) is meshed with a driven bevel gear (8), and the inner wall of the driven bevel gear (8) is fixedly connected to the front side of the outer wall of the transmission rod (5).

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