Transmission structure of multi-angle cutting mechanical arm

Abstract

The utility model discloses a kind of transmission structure of multi-angle cutting mechanical arm, including mounting rod, mounting rod inside middle part is provided with sliding slot, the inside front and rear of sliding slot is fixedly connected with positioning plate, positioning plate middle part is penetrated and rotationally connected with two-way screw rod, two-way screw rod outer periphery front and rear end is all screw connection in the middle part of clamping block, clamping block is slidably connected in the inside front and rear of sliding slot, two-way screw rod outer periphery middle part is penetrated and fixedly connected with driven bevel gear. This kind of transmission structure of multi-angle cutting mechanical arm, when being maintained to mechanical arm transmission assembly, rotate knob, make driving bevel gear rotate in the process of knob rotation, driving bevel gear rotation makes the driven bevel gear meshing at bottom rotate, and then make two-way screw rod rotate, the outside clamping block of two-way screw rod in the process of rotation is contracted to sliding slot interior, so that clamping block and clamping groove can be separated after being separated, and mounting rod can be taken out from installation groove interior, and the transmission assembly of connecting arm is overhauled, improve the mechanical arm maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm transmission technology, specifically a transmission structure for a multi-angle cutting robotic arm. Background Technology

[0002] Multi-angle cutting robotic arms are automated equipment that rely on multi-axis linkage technology, combined with cutting execution components and intelligent control systems, to perform multi-directional and different angle cutting operations in three-dimensional space. They are currently widely used in manufacturing, food and other fields. The robotic arm transmission component is the core component that connects the power source and the joint execution end. It is responsible for accurately converting power into linear or rotational motion of the robotic arm, which directly determines the motion accuracy, load capacity and response speed. The mainstream types can be divided into two categories: rigid transmission and flexible transmission.

[0003] In existing technologies, the transmission structure of cutting robotic arms is mostly installed inside the robotic arm. When it is necessary to inspect or replace the transmission structure of the robotic arm, disassembly is difficult and affects the normal use of the robotic arm. Therefore, there is a need for a transmission structure of multi-angle cutting robotic arms that can be quickly disassembled. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a transmission structure for a multi-angle cutting robotic arm, including a base, and a quick disassembly and assembly mechanism is provided on the top of the base. The quick-assembly and disassembly mechanism includes an installation rod with a groove in the middle of its inner side. Positioning plates are fixedly connected to both the front and rear parts of the inner side of the groove. A bidirectional screw is rotatably connected through the middle of the positioning plate. Both the front and rear ends of the bidirectional screw are threaded to the middle of a locking block. The locking block is slidably connected to the front and rear parts of the inner side of the groove. A driven bevel gear is fixedly connected through the middle of the outer side of the bidirectional screw. A driving bevel gear is meshed with the top of the driven bevel gear. A knob is fixedly connected to the top of the driving bevel gear.

[0005] As a preferred embodiment of this utility model, the knob is connected through and rotatably to the middle of the top wall of the slide groove, and the locking blocks are all fitted with the slot gap.

[0006] As a preferred embodiment of this utility model, the slots are respectively disposed in the middle of the front and rear walls of the mounting groove, and the mounting groove is disposed on the left side of the middle of the top wall of the connecting arm.

[0007] As a preferred embodiment of this utility model, an electric push rod is fixedly connected to the middle of the left side wall of the mounting rod, and a toothed plate is fixedly connected to the output end of the electric push rod.

[0008] As a preferred embodiment of this utility model, a drive gear is meshed with the bottom of the toothed plate, and the drive gear passes through and is fixedly connected to the middle of the second rotating shaft.

[0009] As a preferred technical solution of this utility model, the right end of the connecting arm is rotatably connected to the top of the support arm via a connecting shaft, a servo rotary cylinder is provided on the top of the front wall of the support arm, and a U-shaped plate is rotatably connected to the left end of the connecting arm via a second rotating shaft, with a laser cutting head provided in the middle of the left side of the U-shaped plate.

[0010] As a preferred technical solution of this utility model, a first rotating shaft is connected through and fixedly connected to the middle of the bottom end of the support arm, a worm gear is connected through and fixedly connected to the middle of the outer periphery of the first rotating shaft, a worm is meshed with the bottom of the worm gear, the worm is rotatably connected between two sets of fixed plates, a drive motor is fixedly connected to the left wall of the left fixed plate, and the output end of the drive motor is fixedly connected to the worm.

[0011] As a preferred technical solution of this utility model, the fixing plate is fixedly connected to the left and right ends of the middle of the inner top wall of the mounting component, the mounting component is fixedly connected to the middle of the top wall of the connecting seat, the connecting seat is rotatably connected to the middle of the top wall of the base, and universal wheels are provided at the four corners of the bottom wall of the base.

[0012] The beneficial effects of this utility model are: The transmission structure of this multi-angle cutting robotic arm improves the maintenance efficiency of the robotic arm by rotating a knob when maintenance is required. Rotating the knob causes the active bevel gear to rotate, which in turn causes the driven bevel gear meshing at the bottom to rotate, which in turn causes the bidirectional screw to rotate. During the rotation of the bidirectional screw, its outer locking block retracts into the slide groove, thereby separating the locking block from the groove and allowing the mounting rod to be removed from the mounting groove for maintenance of the connecting arm transmission assembly. The transmission structure of this multi-angle cutting robotic arm uses a worm gear and worm shaft connection between the mounting component and the support arm, which improves the load capacity of the support arm. The top is driven by an electric push rod, toothed plate and gear, which improves the flexibility of the cutting end of the robotic arm. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a side view of the overall structure of the transmission structure of a multi-angle cutting robotic arm according to this utility model; Figure 2 This is a top view schematic diagram of the overall structure of the transmission structure of a multi-angle cutting robotic arm according to this utility model; Figure 3 This is a rear view schematic diagram of the overall structure of the transmission structure of a multi-angle cutting robotic arm according to this utility model; Figure 4 This is a front view schematic diagram of the quick-installation structure of the transmission structure of a multi-angle cutting robotic arm according to this utility model; Figure 5 This is a schematic diagram of the internal structure of the quick-installation mechanism of the transmission structure of a multi-angle cutting robotic arm according to this utility model.

[0014] In the diagram: 1. Base; 2. Quick-release mechanism; 3. Connecting seat; 4. Mounting component; 5. Support arm; 6. Connecting arm; 7. Connecting shaft; 8. Servo rotary cylinder; 9. First rotating shaft; 10. Worm gear; 11. Worm; 12. Fixing plate; 13. Drive motor; 14. Mounting slot; 15. Slot; 16. Mounting rod; 17. Second rotating shaft; 18. Drive gear; 19. Gear plate; 20. Electric push rod; 21. Knob; 22. Slide groove; 23. Locking block; 24. Bidirectional screw; 25. Positioning plate; 26. Driven bevel gear; 27. Driven bevel gear; 28. U-shaped plate; 29. ​​Universal wheel; 30. Laser cutting head. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0016] Example: Figures 1-5 As shown, the transmission structure of a multi-angle cutting robotic arm of this utility model includes a base 1, and a quick disassembly mechanism 2 is provided on the top of the base 1. The quick-release mechanism 2 includes a mounting rod 16. A groove 22 is provided in the middle of the inner side of the mounting rod 16. Positioning plates 25 are fixedly connected to both the front and rear parts of the inner side of the groove 22. The positioning plates 25 can install the bidirectional screw 24, allowing it to rotate inside the groove 22. The bidirectional screw 24 is rotatably connected through the middle of the positioning plate 25. The front and rear ends of the outer periphery of the bidirectional screw 24 are threadedly connected to the middle of the locking block 23. The rotation of the bidirectional screw 24 can cause the locking blocks 23 on both sides to move left and right inside the groove 22. The locking blocks 23 are slidably connected to the front and rear parts of the inner side of the groove 22 respectively. A driven bevel gear 26 is fixedly connected through the middle of the outer periphery of the bidirectional screw 24. A driving bevel gear 27 is meshed with the top of the driven bevel gear 26. During the rotation of the driving bevel gear 27, it can drive the driven bevel gear 26 at the bottom to rotate, thereby causing the bidirectional screw 24 fixed to the driven bevel gear 26 to rotate. A knob 21 is fixedly connected to the top of the driving bevel gear 27. Rotating the knob 21 can make the driving bevel gear 27 rotate.

[0017] The knob 21 is connected to the middle of the top wall of the slide 22 through and rotates. The locking blocks 23 are all in clearance fit with the locking slots 15. The locking slots 15 are respectively set in the middle of the front and rear walls of the mounting groove 14. The mounting groove 14 is set in the middle left side of the top wall of the connecting arm 6. The mounting groove 14 provides space for the installation of the mounting rod 16. After the mounting rod 16 is fixed inside the mounting groove 14, the electric push rod 20 can be fixed.

[0018] An electric push rod 20 is fixedly connected to the middle of the left side wall of the mounting rod 16. A toothed plate 19 is fixedly connected to the output end of the electric push rod 20. A drive gear 18 is meshed with the bottom of the toothed plate 19. The drive gear 18 passes through and is fixedly connected to the middle of the second rotating shaft 17. The second rotating shaft 17 and the first rotating shaft 9 are both mechanical arm joints, which enable adjacent arms of the mechanical arm to rotate relative to each other.

[0019] The right end of the connecting arm 6 is rotatably connected to the top of the support arm 5 via the connecting shaft 7. A servo rotary cylinder 8 is installed on the top of the front wall of the support arm 5. The operation of the servo rotary cylinder 8 enables the connecting arm 6 to rotate up and down on the top of the support arm 5. The left end of the connecting arm 6 is rotatably connected to a U-shaped plate 28 via a second rotating shaft 17. A laser cutting head 30 is installed in the middle of the left side of the U-shaped plate 28. The laser cutting head 30 can emit laser light to cut objects. A first rotating shaft 9 is passed through and fixedly connected to the middle of the bottom end of the support arm 5. A worm gear 10 is passed through and fixedly connected to the middle of the outer periphery of the first rotating shaft 9. A worm 11 is meshed with the bottom of the worm gear 10. The rotation of the worm 11 can cause the worm gear 10 to rotate, thereby causing the first rotating shaft 9 to rotate. The worm 11 is rotatably connected between two sets of fixed plates 12. A drive motor 13 is fixedly connected to the left wall of the left fixed plate 12. The output end of the drive motor 13 is fixedly connected to the worm 11.

[0020] The fixing plate 12 is fixedly connected to the left and right ends of the middle of the inner top wall of the mounting part 4. The mounting part 4 is fixedly connected to the middle of the top wall of the connecting seat 3. The connecting seat 3 is rotatably connected to the middle of the top wall of the base 1. Universal wheels 29 are provided at the four corners of the bottom wall of the base 1. The universal wheels 29 can reduce the difficulty of moving the robotic arm.

[0021] Working principle: When maintenance of the robotic arm transmission assembly is required, the knob 21 is turned. During the rotation of the knob 21, the active bevel gear 27 rotates, which in turn causes the driven bevel gear 26 meshing at the bottom to rotate, thereby causing the bidirectional screw 24 to rotate. During the rotation of the bidirectional screw 24, its outer locking block 23 retracts into the slide groove 22, thereby separating the locking block 23 from the locking groove 15. The mounting rod 16 can then be removed from the mounting groove 14 for maintenance of the transmission assembly of the connecting arm 6, reducing the difficulty of maintenance of the transmission assembly. The connection between the mounting part 4 and the support arm 5 is achieved by the cooperation of the worm gear 10 and the worm 11, which can improve the load capacity of the support arm 5. The top is driven by the cooperation of the electric push rod 20, the toothed plate 19 and the drive gear 18, which improves the flexibility of the cutting end of the robotic arm.

[0022] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The above description is merely 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 transmission structure for a multi-angle cutting robotic arm, comprising a base (1), characterized in that: The base (1) is provided with a quick disassembly mechanism (2) on its top; The quick disassembly and assembly mechanism (2) includes an installation rod (16). A groove (22) is provided in the middle of the inner side of the installation rod (16). A positioning plate (25) is fixedly connected to both the front and rear parts of the inner side of the groove (22). A bidirectional screw (24) is rotatably connected through the middle of the positioning plate (25). The front and rear ends of the outer periphery of the bidirectional screw (24) are threaded to the middle of the locking block (23). The locking block (23) is slidably connected to the front and rear parts of the inner side of the groove (22). A driven bevel gear (26) is rotatably connected through the middle of the outer periphery of the bidirectional screw (24). A driving bevel gear (27) is meshed with the top of the driven bevel gear (26). A knob (21) is fixedly connected to the top of the driving bevel gear (27).

2. The transmission structure of a multi-angle cutting robotic arm according to claim 1, characterized in that, The knob (21) is connected through and rotates in the middle of the top wall of the slide (22), and the locking blocks (23) are all in clearance fit with the slots (15).

3. The transmission structure of a multi-angle cutting robotic arm according to claim 2, characterized in that, The slots (15) are respectively located in the middle of the front and rear walls of the mounting slot (14), and the mounting slot (14) is located on the left side of the middle of the top wall of the connecting arm (6).

4. The transmission structure of a multi-angle cutting robotic arm according to claim 1, characterized in that, An electric push rod (20) is fixedly connected to the middle of the left side wall of the mounting rod (16), and a toothed plate (19) is fixedly connected to the output end of the electric push rod (20).

5. The transmission structure of a multi-angle cutting robotic arm according to claim 4, characterized in that, The bottom of the toothed plate (19) is meshed with a drive gear (18), which passes through and is fixedly connected to the middle of the second rotating shaft (17).

6. The transmission structure of a multi-angle cutting robotic arm according to claim 3, characterized in that, The right end of the connecting arm (6) is rotatably connected to the top of the support arm (5) via the connecting shaft (7). A servo rotary cylinder (8) is provided on the top of the front wall of the support arm (5). The left end of the connecting arm (6) is rotatably connected to a U-shaped plate (28) via the second rotating shaft (17). A laser cutting head (30) is provided in the middle of the left side of the U-shaped plate (28).

7. The transmission structure of a multi-angle cutting robotic arm according to claim 6, characterized in that, The support arm (5) has a first rotating shaft (9) that is fixedly connected through the middle of its bottom end. The first rotating shaft (9) has a worm wheel (10) that is fixedly connected through the middle of its outer periphery. The bottom of the worm wheel (10) is meshed with a worm (11). The worm (11) is rotatably connected between two sets of fixed plates (12). The left wall of the fixed plate (12) on the left side is fixedly connected with a drive motor (13). The output end of the drive motor (13) is fixedly connected to the worm (11).

8. The transmission structure of a multi-angle cutting robotic arm according to claim 7, characterized in that, The fixing plate (12) is fixedly connected to the left and right ends of the middle of the inner top wall of the mounting component (4). The mounting component (4) is fixedly connected to the middle of the top wall of the connecting seat (3). The connecting seat (3) is rotatably connected to the middle of the top wall of the base (1). Universal wheels (29) are provided at the four corners of the bottom wall of the base (1).

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