Multifunctional mechanical arm

Abstract

The invention belongs to the technical field of mechanical arms, in particular to a multifunctional mechanical arm, and aims to solve the problems that an existing mechanical arm cannot perform additional operation on a workpiece, dust on the surface of the workpiece cannot be cleaned, and the mechanical arm is inconvenient to use, the following scheme is provided: the multifunctional mechanical arm comprises a base, and a mechanical arm body for moving the workpiece is fixed on the base; a connecting block is rotationally arranged at the output end of the mechanical arm body, two main clamping plates are arranged on the lower side of the connecting block, auxiliary clamping plates used for clamping workpieces are arranged at the ends, close to each other, of the two main clamping plates, a set of clamping assembly is arranged in the connecting block, and the clamping assembly is used for driving the two auxiliary clamping plates to conduct clamping. And in the overturning process, the surface of the workpiece is automatically cleaned through cooperation of the air spraying head and the swing assembly, manual intervention is reduced, and the cleanliness of the production environment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical arms, and in particular to a multifunctional mechanical arm. Background Art

[0002] The robotic arm is the most widely used automated mechanical device in the field of robotics technology. It can receive instructions and accurately locate a point in three-dimensional (or two-dimensional) space to perform operations.

[0003] In the prior art, the robot arm drives the workpiece to move during operation. When the workpiece moves, the robot arm cannot perform additional operations on the workpiece, and dust on the surface of the workpiece cannot be cleaned, which is inconvenient to use.

[0004] In view of the above problems, the present invention document proposes a multifunctional robotic arm. Summary of the invention

[0005] The present invention provides a multifunctional robotic arm, which solves the shortcomings of the prior art that the robotic arm cannot perform additional operations on a workpiece, dust on the surface of the workpiece cannot be cleaned, and is inconvenient to use.

[0006] The present invention provides the following technical solutions:

[0007] A multifunctional mechanical arm comprises a base, on which a mechanical arm body for moving a workpiece is fixed;

[0008] Wherein, a connecting block is rotatably arranged on the output end of the robot arm body, two main clamping plates are arranged on the lower side of the connecting block, and auxiliary clamping plates for clamping workpieces are arranged at the adjacent ends of the two main clamping plates, and a group of clamping components is arranged in the connecting block, and the clamping components are used to drive the two auxiliary clamping plates to clamp;

[0009] A turning assembly, which is arranged between the connecting block and the two main clamping plates and is used to drive the two auxiliary clamping plates to drive the workpiece to turn back and forth;

[0010] A spray head, a third groove is formed at the bottom end of the connecting block, a rotating shaft rotates in the third groove, a U-shaped frame is fixed on the surface of the rotating shaft, and the spray head is fixed in the U-shaped frame for cleaning the surface of the workpiece during the flipping process;

[0011] A swing assembly, the swing assembly is used to drive the jet head to perform swing cleaning;

[0012] And an extrusion drive component used in conjunction with the swing component, wherein the extrusion drive component is used to drive the swing component to start swinging when the flip component is started.

[0013] In a possible design, the clamping assembly includes a second groove opened at the bottom end of the connecting block, a bidirectional screw rod rotates in the second groove, the two main clamping plates slide in the second groove, the two main clamping plates are respectively threadedly connected to the positive and negative thread segments on the circumferential surface of the bidirectional screw rod, and a first drive motor is fixed to the side end of the connecting block, and the first drive motor is fixedly connected to the bidirectional screw rod through a coupling.

[0014] In a possible design, the adjacent ends of the two auxiliary clamping plates are both provided with anti-slip pads.

[0015] In a possible design, the flip assembly includes a seventh groove opened in the connecting block, four limit rods are fixed in the seventh groove, the same lifting plate is slidably arranged on the surfaces of the four limit rods, a sliding groove is opened in the lifting plates, a sliding rod slides in the sliding groove, two rotating rods are arranged in the seventh groove, the sliding rod is fixed on the side where the two rotating rods are close to each other, a connecting shaft is rotated in the seventh groove, one of the rotating rods rotates on an inner wall of one side of the seventh groove, and the other rotating rod is fixed to the side end of the connecting shaft, the connecting shaft moves outward and passes through the side end of the connecting block, a second driving motor is fixed to the side end of the connecting block, and the second driving motor is fixedly connected to the connecting shaft through a coupling.

[0016] In a possible design, the flip assembly also includes two connecting racks fixed to the bottom end of the lifting plate, the two main splints are each provided with a first groove, the two connecting racks slide in the two first grooves respectively, a rotating shaft rotates in the two first grooves, the two rotating shafts move outward respectively and penetrate the side ends of the two main splints, the two auxiliary splints are respectively fixed to the side ends of the two rotating shafts, the surfaces of the two rotating shafts are fixed with swing gears, and the two rotating shafts are respectively meshed with the two swing gears.

[0017] In a possible design, the swing assembly includes a driven gear fixed to the surface of the rotating shaft, and a driving rack meshing with the driven gear slides in the third groove.

[0018] In a possible design, the extrusion drive assembly includes a fourth groove provided in the connecting block, the driving rack moves outward and passes through the fourth groove, a trapezoidal extrusion block slides in the fourth groove, the driving rack is fixed to the side end of the trapezoidal extrusion block, a receiving groove is provided in the trapezoidal extrusion block, a first spring is fixed in the receiving groove, the side end of the first spring is fixed in the fourth groove, a fifth groove is provided in the connecting block, an extrusion plate that is in extrusion contact with the trapezoidal extrusion block slides in the fifth groove, two connecting rods are fixed on the top of the extrusion plate, a sixth groove is provided in the connecting block, the two connecting rods both move upward and pass through the sixth groove, the same connecting plate is fixed on the top of the two connecting rods, a cam that is in extrusion contact with the connecting plate is fixed on the surface of the connecting shaft, and two second springs are fixed to the bottom end of the connecting plate, the side ends of the two second springs are fixed in the sixth groove, and the two second springs are respectively sleeved on the surfaces of the two connecting rods.

[0019] In a possible design, a side end of the spray head is fixedly connected to a connecting pipe for air intake.

[0020] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0021] In the present application, the bidirectional screw rod is driven to rotate by starting the first driving motor, and the rotation of the bidirectional screw rod drives the two main clamping plates to move in the direction of approaching each other. The two main clamping plates respectively drive the two auxiliary clamping plates to clamp and fix the workpiece, and the air is sent to the connecting pipe by starting the air pump, and then sent to the nozzle through the connecting pipe for spraying and cleaning. The connecting shaft is driven to rotate by starting the second driving motor, and the connecting shaft drives the rotating rod to rotate, and the rotating rod drives the sliding rod to perform circular motion. The sliding rod slides in the sliding groove during the circular motion, and the sliding rod drives the lifting plate to move back and forth up and down on the surface of the four limit rods. The lifting plate drives the two connecting racks to perform reciprocating linear motion up and down, and the two connecting racks move back and forth When the gear shifts, the two swinging gears are driven to swing back and forth, and the two swinging gears respectively drive the two rotating shafts to swing, and the two rotating shafts respectively drive the two auxiliary clamping plates to rotate, and the two auxiliary clamping plates drive the workpieces clamped by the auxiliary clamping plates to flip back and forth, and the rotation of the connecting shaft drives the cam to rotate, and the protrusion of the cam squeezes the connecting plate downward to move downward, and the connecting plate drives the extrusion plate to move downward through two connecting rods, and the extrusion plate squeezes the inclined surface of the trapezoidal extrusion block, and the trapezoidal extrusion block is squeezed to move, driving the driving rack to move, and the driving rack drives the driven gear to rotate. After the connecting plate loses extrusion, the driving rack is reset, and the driven gear drives the rotating shaft, U-shaped frame and nozzle to swing reciprocatingly.

[0022] In the present invention, the multifunctional mechanical arm can achieve the effect of driving the workpiece to perform reciprocating flipping through the flipping assembly;

[0023] In the present invention, the multifunctional mechanical arm can achieve the effect of driving the jet head to perform swing jet cleaning through the swing component;

[0024] In the present invention, multiple functions such as clamping, flipping, and cleaning are integrated into one, which greatly improves the automation level and work efficiency of the production line. During the flipping process, the workpiece surface is automatically cleaned by the cooperation of the nozzle and the swing assembly, which reduces manual intervention and improves the cleanliness of the production environment. The overall structural design is reasonable, and the components are closely matched, which effectively saves space and facilitates operation in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A front perspective view of a multifunctional robotic arm provided by an embodiment of the present invention;

[0026] Figure 2 A partial stereoscopic diagram of a multifunctional mechanical arm provided by an embodiment of the present invention;

[0027] Figure 3 A cross-sectional view of a multifunctional mechanical arm provided by an embodiment of the present invention;

[0028] Figure 4 A multifunctional mechanical arm provided by an embodiment of the present invention Figure 3 A partial enlarged view of the middle A;

[0029] Figure 5 A first partial cross-sectional view of a multifunctional mechanical arm provided by an embodiment of the present invention;

[0030] Figure 6 A second partial cross-sectional view of a multifunctional mechanical arm provided by an embodiment of the present invention;

[0031] Figure 7 A third partial cross-sectional view of a multifunctional mechanical arm provided by an embodiment of the present invention;

[0032] Figure 8 A partial stereoscopic view of a multifunctional robotic arm provided in an embodiment of the present invention.

[0033] Reference numerals:

[0034] 1. Robot arm body; 2. Base; 3. Connecting block; 4. Main splint; 5. Sub splint; 6. First groove; 7. Second groove; 8. Bidirectional screw rod; 9. First drive motor; 10. Second drive motor; 11. Third groove; 12. Rotating shaft; 13. U-shaped frame; 14. Driven gear; 15. Injection head; 16. Connecting pipe; 17. Driving rack; 18. Fourth groove; 19. Trapezoidal extrusion block; 20. Accommodating groove; 21. First spring; 22. Extrusion plate; 23. Fifth groove; 24. Connecting rod; 25. Sixth groove; 26. Connecting shaft; 27. Cam; 28. Connecting plate; 29. ​​Second spring; 30. Rotating rod; 31. Seventh groove; 32. Limiting rod; 33. Lifting plate; 34. Sliding rod; 35. Sliding groove; 36. Connecting rack; 37. Swinging gear; 38. Rotating shaft. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0037] Example 1

[0038] Reference Figure 1-Figure 8 A multifunctional robot arm includes a robot body 1, a base 2 of the robot body 1 is firmly mounted on the ground or any fixed platform, and the robot body 1 is firmly fixed on the base 2 to accurately move and operate a workpiece. The output end of the robot body 1 is rotatably connected to a connecting block 3 through a bearing, and the connecting block 3 is a core component that integrates multiple functions.

[0039] The bottom of the connection block 3 is designed with two main clamping plates 4, which can move relative to each other in the horizontal direction to clamp workpieces of different sizes. Auxiliary clamping plates 5 are respectively provided near the ends of the main clamping plates 4 to clamp the edges of the workpiece more precisely to prevent it from slipping. In order to achieve this clamping function, a group of clamping components are set in the connection block 3, specifically: a second groove 7 is opened at the bottom end of the connection block 3, and a bidirectional screw 8 is built in. The bidirectional screw 8 is driven to rotate by the first drive motor 9, and its positive and negative thread segments are respectively threadedly connected with the two main clamping plates 4, so as to realize the movement of the two main clamping plates 4 towards or away from each other, and then control the clamping and release of the workpiece by the auxiliary clamping plate 5.

[0040] In order to increase the stability of clamping, anti-slip pads are attached to the clamping surfaces of the two auxiliary clamping plates 5.

[0041] In addition, a flip assembly is provided between the connecting block 3 and the two main clamping plates 4, and the assembly includes a seventh groove 31, a limit rod 32, a lifting plate 33, a slide groove 35, a slide rod 34, a rotating rod 30 and a connecting shaft 26. The connecting shaft 26 is driven to rotate by the second driving motor 10, so that one of the rotating rods 30 and the lifting plate 33 is driven to rise and fall along the limit rod 32, and the other rotating rod 30 is used to keep the lifting plate 33 balanced. The connecting rack 36 at the bottom end of the lifting plate 33 slides in the first groove 6 of the main clamping plate 4, and drives the auxiliary clamping plate 5 to flip back and forth through the swing gear 37 on the rotating shaft 38, so as to realize the flipping operation of the workpiece.

[0042] The extrusion drive assembly includes a fourth groove 18 provided in the connecting block 3, the driving rack 17 moves outward and penetrates into the fourth groove 18, a trapezoidal extrusion block 19 slides in the fourth groove 18, the driving rack 17 is fixed to the side end of the trapezoidal extrusion block 19, a receiving groove 20 is provided in the trapezoidal extrusion block 19, a first spring 21 is fixed in the receiving groove 20, and the side end of the first spring 21 is fixed in the fourth groove 18, a fifth groove 23 is provided in the connecting block 3, and an extrusion spring 23 slides in the fifth groove 23 and is in contact with the trapezoidal extrusion block 19. The top of the extrusion plate 22 is fixed with two connecting rods 24, a sixth groove 25 is provided in the connecting block 3, the two connecting rods 24 are both movable upward and penetrate into the sixth groove 25, the tops of the two connecting rods 24 are fixed with the same connecting plate 28, the surface of the connecting shaft 26 is fixed with a cam 27 that is in extrusion contact with the connecting plate 28, the bottom end of the connecting plate 28 is fixed with two second springs 29, the side ends of the two second springs 29 are both fixed in the sixth groove 25, and the two second springs 29 are respectively sleeved on the surfaces of the two connecting rods 24

[0043] Example 2

[0044] Reference Figure 1-Figure 8During the flipping process, in order to clean the surface of the workpiece, a nozzle 15 is provided at the bottom of the connecting block 3. The nozzle 15 is fixed to the rotating shaft 12 through the U-shaped frame 13, and the rotating shaft 12 is rotatably installed in the third groove 11. The side end of the nozzle 15 is fixedly connected with a connecting pipe 16 for receiving the cleaning gas. At the same time, in order to enhance the cleaning effect, a swing component and an extrusion drive component are provided. The swing component enables the nozzle 15 to swing within a certain range through the engagement of the driven gear 14 with the driving rack 17. The extrusion drive component utilizes the cam 27 driven by the rotation of the connecting shaft 26 in the flipping component to squeeze the connecting plate 28, and then pushes the trapezoidal extrusion block 19 and the driving rack 17 to move through the connecting rod 24, so as to realize the swing start and stop of the nozzle 15.

[0045] However, as is well known to those skilled in the art, the working principles and wiring methods of the first drive motor 9 and the second drive motor 10 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0046] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A multifunctional robotic arm, characterized in that: include: A base (2), on which a mechanical arm body (1) for moving a workpiece is fixed; A connecting block (3) is rotatably arranged on the output end of the robot arm body (1), two main clamping plates (4) are arranged on the lower side of the connecting block (3), and auxiliary clamping plates (5) for clamping workpieces are arranged at the adjacent ends of the two main clamping plates (4), and a group of clamping components is arranged in the connecting block (3), and the clamping components are used to drive the two auxiliary clamping plates (5) to clamp; A turning assembly, the turning assembly being arranged between the connecting block (3) and the two main clamping plates (4) and used for driving the two auxiliary clamping plates (5) to drive the workpiece to turn back and forth; A spray head (15), a third groove (11) is provided at the bottom end of the connecting block (3), a rotating shaft (12) rotates in the third groove (11), a U-shaped frame (13) is fixed on the surface of the rotating shaft (12), and the spray head (15) is fixed in the U-shaped frame (13) for cleaning the surface of the workpiece during the turning process; A swing assembly, the swing assembly is used to drive the jet head (15) to perform swing cleaning; And an extrusion drive component used in conjunction with the swing component, wherein the extrusion drive component is used to drive the swing component to start swinging when the flip component is started.

2. A multifunctional robotic arm according to claim 1, characterized in that: The clamping assembly comprises a second groove (7) formed at the bottom end of the connecting block (3), a bidirectional screw (8) rotating in the second groove (7), the two main plates (4) sliding in the second groove (7), the two main plates (4) respectively being threadedly connected to the positive and negative thread segments on the circumferential surface of the bidirectional screw (8), a first drive motor (9) being fixed to the side end of the connecting block (3), the first drive motor (9) being fixedly connected to the bidirectional screw (8) via a coupling.

3. A multifunctional mechanical arm according to claim 2, characterized in that: The adjacent ends of the two auxiliary clamping plates (5) are both provided with anti-slip pads.

4. A multifunctional mechanical arm according to claim 2, characterized in that: The flip assembly comprises a seventh groove (31) provided in the connecting block (3), four limiting rods (32) are fixed in the seventh groove (31), a lifting plate (33) is slidably provided on the surfaces of the four limiting rods (32), a sliding groove (35) is provided in each of the lifting plates (33), a sliding rod (34) is slidably provided in the sliding groove (35), two rotating rods (30) are provided in the seventh groove (31), the sliding rod is fixed on a side where the two rotating rods are close to each other, a connecting shaft (26) is rotatably provided in the seventh groove (31), one of the rotating rods (30) is rotated on an inner wall of one side of the seventh groove (31), and the other rotating rod (30) is fixed to a side end of the connecting shaft (26), the connecting shaft (26) moves outwardly and penetrates the side end of the connecting block (3), a second driving motor (10) is fixed to the side end of the connecting block (3), and the second driving motor (10) is fixedly connected to the connecting shaft (26) through a coupling.

5. A multifunctional mechanical arm according to claim 4, characterized in that: The flip assembly also includes two connecting racks (36) fixed to the bottom end of the lifting plate (33), the two main splints (4) are each provided with a first groove (6), the two connecting racks (36) slide in the two first grooves (6) respectively, the two first grooves (6) are each provided with a rotating shaft (38), the two rotating shafts (38) respectively move outwards and penetrate the side ends of the two main splints (4), the two auxiliary splints (5) are respectively fixed to the side ends of the two rotating shafts (38), the surfaces of the two rotating shafts (38) are each fixed with a swing gear (37), and the two rotating shafts (38) are respectively meshed with the two swing gears (37).

6. A multifunctional mechanical arm according to claim 4, characterized in that: The swing assembly comprises a driven gear (14) fixed to the surface of the rotating shaft (12), and a driving rack (17) meshing with the driven gear (14) slides in the third groove (11).

7. A multifunctional mechanical arm according to claim 6, characterized in that: The extrusion drive assembly comprises a fourth groove (18) provided in the connection block (3), the driving rack (17) moves outwardly and penetrates into the fourth groove (18), a trapezoidal extrusion block (19) slides in the fourth groove (18), the driving rack (17) is fixed to the side end of the trapezoidal extrusion block (19), a receiving groove (20) is provided in the trapezoidal extrusion block (19), a first spring (21) is fixed in the receiving groove (20), the side end of the first spring (21) is fixed in the fourth groove (18), a fifth groove (23) is provided in the connection block (3), an extrusion spring (21) that is in extrusion contact with the trapezoidal extrusion block (19) slides in the fifth groove (23), and a first spring (21) that is in extrusion contact with the trapezoidal extrusion block (19) is provided in the fifth groove (23). A pressure plate (22), two connecting rods (24) are fixed at the top of the extrusion plate (22), a sixth groove (25) is opened in the connecting block (3), the two connecting rods (24) are both movable upward and penetrate into the sixth groove (25), the tops of the two connecting rods (24) are fixed with the same connecting plate (28), the surface of the connecting shaft (26) is fixed with a cam (27) that is in extrusion contact with the connecting plate (28), the bottom end of the connecting plate (28) is fixed with two second springs (29), the side ends of the two second springs (29) are both fixed in the sixth groove (25), and the two second springs (29) are respectively sleeved on the surfaces of the two connecting rods (24).

8. The multifunctional mechanical arm according to claim 1, characterized in that: The side end of the spray head (15) is fixedly connected to a connecting pipe (16) for air intake.

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