Mechanical arm for container transfer

Abstract

The invention provides a mechanical arm for container transferring, and belongs to the technical field of industrial mechanical arms, the mechanical arm comprises a mechanical arm main body, a clamping jaw mechanism, a negative pressure auxiliary mechanism, an overturning bearing mechanism and an arm rod, the arm rod is arranged at the front end of the mechanical arm main body, and the clamping jaw mechanism is arranged at the end, away from the mechanical arm main body, of the arm rod; a negative pressure auxiliary mechanism is arranged on one side of the clamping jaw mechanism, and an overturning bearing mechanism is arranged in the middle of the clamping jaw mechanism. The turnover bearing mechanism is started to be matched with the clamping jaw mechanism, when articles are clamped and transported, a clamped box is borne through a supporting tail plate on the rear side, turnover of a negative pressure auxiliary mechanism and the turnover bearing mechanism is completed in cooperation with a first servo motor, and then the gravity center of the clamped box can be transferred to the surface of the supporting tail plate from the bottom; and therefore, the clamped box can be prevented from falling off during transportation.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of industrial robot arms, and particularly relates to a mechanical arm for transferring a cargo box. BACKGROUND

[0002] With the increasingly wide application of robot devices in industrial production, various types of robot devices have emerged. In an automated production line, it is often necessary to move products between two stations. Transfer robots have been widely used due to their high positioning accuracy, stable working performance, and flexible and diverse structures.

[0003] The overall structure of the existing transfer robot includes a robot body. A clamp is fixedly installed on the working end of the robot body. The clamp is used to clamp a workpiece to be transferred. Then, the clamped workpiece is transported or assembled by driving the robot body, so that the workpiece enters the next process for processing, greatly reducing the transfer efficiency of the workpiece and improving the production efficiency. SUMMARY

[0004] The technical solution of the present application provides a solution significantly different from the prior art to solve the technical problem of the prior art solution being too single. Specifically, the present application mainly provides a mechanical arm for transferring a cargo box to solve the technical problem proposed in the background art.

[0005] The technical solution adopted by the present application to solve the above technical problem is as follows:

[0006] A mechanical arm for transferring a cargo box includes a mechanical arm body, a clamping jaw mechanism, a negative pressure auxiliary mechanism, a turnover supporting mechanism, an arm rod, and a rotating sleeve. The front end of the mechanical arm body is provided with an arm rod. The end of the arm rod away from the mechanical arm body is provided with a clamping jaw mechanism. One side of the clamping jaw mechanism is provided with a negative pressure auxiliary mechanism. The middle part of the clamping jaw mechanism is provided with a turnover supporting mechanism.

[0007] The clamping jaw mechanism includes a first servo motor, a first transmission shaft, a clamping jaw turnover piece, a horizontal rotating assembly, and a clamping assembly. One side of the front end of the arm rod is fixedly connected with a first servo motor. The transmission end of the first servo motor is rotatably connected with a first transmission shaft. The first transmission shaft is rotatably connected to the middle part of the arm rod. The surface of the first transmission shaft is fixedly connected with a clamping jaw turnover piece.

[0008] The clamping assembly comprises a fixed clamping piece, a movable piece guide groove, a movable clamping piece, a movable piece guide block, a first positioning piece, a first sliding guide rod, a first electric telescopic pump, an avoiding groove and a sliding groove, the bottom surface of the rotating sleeve is fixedly connected with the fixed clamping piece, the top surface of the fixed clamping piece is symmetrically provided with the movable piece guide groove, and the bottom surface of the fixed clamping piece is slidably connected with the movable clamping piece.

[0009] The turnover supporting mechanism comprises a second positioning piece, a second sliding guide rod, a distance adjusting assembly and an automatic adjusting assembly, one side of the fixed clamping piece away from the movable clamping piece is fixedly connected with the second positioning piece at both ends of the avoiding groove, the middle part of the second positioning piece is fixedly connected with the second sliding guide rod, the distance adjusting assembly comprises a second electric telescopic pump, a movable supporting rod and a supporting tail plate, one side of the fixed clamping piece close to the second positioning piece is fixedly connected with the second electric telescopic pump, the middle part of the avoiding groove on both sides is slidably connected with the movable supporting rod, and the surface of the movable supporting rod on one side is slidably connected with the second sliding guide rod.

[0010] Preferably, the horizontal rotating assembly comprises a sleeve, a second servo motor, a second transmission shaft and a rotating sleeve, the bottom surface of the clamping jaw turnover piece is fixedly connected with the sleeve, the middle part of the sleeve is fixedly connected with the second servo motor, the transmission end of the bottom of the second servo motor is rotatably connected with the second transmission shaft, one end of the second transmission shaft away from the second servo motor is fixedly connected with the rotating sleeve, and the rotating sleeve is rotatably connected to the middle part of the sleeve.

[0011] Preferably, the movable piece guide block is slidably connected to the inner wall of the movable piece guide groove, the two ends of the movable piece guide groove on one side of the top surface of the fixed clamping piece are fixedly connected with the first sliding guide rod, and the movable piece guide block on one side is slidably connected to the surface of the first sliding guide rod.

[0012] Preferably, the negative pressure auxiliary mechanism comprises a tracheal protection frame, a shunt trachea, a negative pressure suction head, a gas collecting pipe, a negative pressure opening and closing assembly and a negative pressure conveying assembly, one side of the movable clamping piece away from the fixed clamping piece is fixedly connected with the tracheal protection frame, the middle part of the fixed clamping piece is fixedly connected with a plurality of shunt tracheas in a linear array, one end of the shunt trachea close to the fixed clamping piece is fixedly connected with the negative pressure suction head, and one end of the shunt trachea away from the negative pressure suction head is fixedly connected with the gas collecting pipe.

[0013] Preferably, the negative pressure opening and closing assembly comprises a gas flow guide, a gas opening and closing valve and a corrugated rubber air bag, the top surface of the fixed clamping piece is fixedly connected with the gas flow guide, one end of the gas flow guide is connected with the gas opening and closing valve in a plug-in manner, the gas opening and closing valve is fixedly connected with the movable piece guide block close to the side of the first sliding guide rod, and the middle part of the gas flow guide and the gas opening and closing valve is fixedly connected with the corrugated rubber air bag.

[0014] Preferably, the negative pressure conveying assembly comprises a first gas supply pipe, a negative pressure gas pump and a second gas supply pipe, one end of the first gas supply pipe is fixedly connected with the output end of the gas collecting pipe, the end of the first gas supply pipe away from the gas collecting pipe is fixedly connected with the gas opening and closing valve, one side of the arm lever is fixedly connected with the negative pressure gas pump, the input end of the negative pressure gas pump is fixedly connected with the second gas supply pipe, and the end of the second gas supply pipe away from the negative pressure gas pump is fixedly connected to the surface of the gas flow guide.

[0015] Preferably, the automatic adjusting assembly comprises a sliding block, a pushing piece, a movable rod, a pulley and a spring, the surface of the support tail plate movably connected to the surface of the movable support rod is fixedly connected with the sliding block, the inner wall of the sliding groove is slidably connected with the pulley, the inner wall of the pulley is slidably connected with the movable rod, the end of the movable rod away from the pulley is fixedly connected with the pushing piece, and the surface of the movable rod is sleeved with the spring.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] (1) The device is provided with a clamping jaw mechanism, the movable clamping piece moves to one side of the fixed clamping piece by cooperating with the first electric telescopic pump, the box body can be clamped, and the fixed clamping piece and the movable clamping piece can block the outside, so that the purpose of protecting the conveying box body is achieved;

[0018] (2) The negative pressure auxiliary mechanism is provided, the gas opening and closing valve is moved when the movable clamping piece approaches the fixed clamping piece in use, the negative pressure gas can be opened, the box body is clamped by cooperating with the negative pressure suction head, the stability of clamping the box body can be further increased, and the automatic opening and closing of the negative pressure assembly can be realized;

[0019] (3) By opening the flip support mechanism with the clamping jaw mechanism, the box is clamped and transported, and the rear support tail plate supports the clamped object, and the first servo motor completes the flip of the negative pressure auxiliary mechanism and the flip support mechanism, so that the center of gravity of the box can be transferred from the bottom to the surface of the support tail plate, thereby avoiding the falling of the box during transportation, and at the same time, the problem of breakage of glass products containing liquid during transportation is solved.

[0020] The application will be explained in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is one of the schematic diagrams of the overall structure of the application;

[0022] Figure 2 It is a schematic diagram of the connection structure of the arm rod and the clamping jaw mechanism of the application;

[0023] Figure 3 It is a schematic diagram of the disassembled structure of the clamping jaw mechanism of the application;

[0024] Figure 4 It is a schematic diagram of the structure of the negative pressure auxiliary mechanism of the application;

[0025] Figure 5 It is a schematic diagram of the structure of the right side of the negative pressure auxiliary mechanism of the application;

[0026] Figure 6 It is a schematic diagram of the structure of the negative pressure opening and closing assembly in the negative pressure auxiliary mechanism of the application;

[0027] Figure 7 It is a schematic diagram of the connection structure of the clamping jaw mechanism and the flip support mechanism of the application;

[0028] Figure 8 It is a schematic diagram of the structure of the flip support mechanism of the application. BRIEF DESCRIPTION OF DRAWINGS:

[0030] 1, mechanical arm main body; 2, clamping jaw mechanism; 3, negative pressure auxiliary mechanism; 4, flip support mechanism; 5, arm rod; 6, first servo motor; 7, first transmission shaft; 8, clamping jaw flip part; 9, sleeve; 10, second servo motor;

[0031] 11, second transmission shaft; 12, rotating sleeve; 13, fixed clamping part; 14, movable part guide groove; 15, movable clamping part; 16, movable part guide block; 17, first positioning part; 18, first sliding guide rod; 19, first electric telescopic pump;

[0032] 20, avoidance slot; 21, sliding slot; 22, trachea protection frame; 23, shunt trachea; 24, negative pressure suction head; 25, gas collecting pipe; 26, gas guide; 27, gas opening and closing valve; 28, corrugated rubber air bag; 29, first gas supply pipe;

[0033] 30, negative pressure air pump; 31, second gas supply pipe; 32, second positioning member; 33, second sliding guide rod; 34, second electric telescopic pump; 35, movable support rod; 36, support tail plate; 37, sliding block; 38, pushing member; 39, movable rod;

[0034] 40, pulley; 41, spring. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given, but the present application can be realized in different forms and is not limited to the embodiments described herein, on the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0036] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be intervening elements, the terms "vertical", "horizontal", "left", "right" and similar terms as used herein are for purposes of description only.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application, the use of the terms "and / or" includes any and all combinations of one or more of the associated listed items.

[0038] Example one:

[0039] Please refer to the drawings Figure 1 and Figure 2 The mechanical arm for transferring the container includes a mechanical arm body 1, a clamping jaw mechanism 2, a negative pressure auxiliary mechanism 3, a turnover supporting mechanism 4, an arm rod 5 and a rotating sleeve 12, the front end of the mechanical arm body 1 is provided with the arm rod 5, the end of the arm rod 5 away from the mechanical arm body 1 is provided with the clamping jaw mechanism 2, one side of the clamping jaw mechanism 2 is provided with the negative pressure auxiliary mechanism 3, and the middle part of the clamping jaw mechanism 2 is provided with the turnover supporting mechanism 4.

[0040] Example two:

[0041] Please refer to the drawingsFigures 1-8 As shown in the drawings, the clamping assembly comprises a fixed clamping piece 13, a movable piece guide groove 14, a movable clamping piece 15, a movable piece guide block 16, a first positioning piece 17, a first sliding guide rod 18, a first electric telescopic pump 19, an avoidance groove 20 and a sliding groove 21. The bottom surface of the rotating sleeve 12 is fixedly connected with the fixed clamping piece 13. The top surface of the fixed clamping piece 13 is symmetrically provided with the movable piece guide groove 14. The bottom surface of the fixed clamping piece 13 is slidably connected with the movable clamping piece 15. The top surface of the movable clamping piece 15 is fixedly connected with the movable piece guide block 16 symmetrically. The movable piece guide block 16 is slidably connected with the inner wall of the movable piece guide groove 14. The two ends of the movable piece guide groove 14 on one side of the top surface of the fixed clamping piece 13 is fixedly connected with the first sliding guide rod 18. One side of the movable piece guide block 16 is slidably connected with the surface of the first sliding guide rod 18. The top surface of the fixed clamping piece 13 is fixedly connected with the first electric telescopic pump 19. The output end of the first electric telescopic pump 19 is fixedly connected with the other movable piece guide block 16. The surfaces of the fixed clamping piece 13 and the movable clamping piece 15 are symmetrically provided with two avoidance grooves 20. The middle part of the two avoidance grooves 20 on the surface of the fixed clamping piece 13 is provided with the sliding groove 21. The avoidance groove 20 can conveniently accommodate the second electric telescopic pump 34 and the movable support rod 35 assembly. The output end of the second electric telescopic pump 34 is retracted to drive the movable support rod 35 to slide on the surface of the avoidance groove 20. The avoidance groove 20 is in close contact with the surface of the clamped object by sliding.

[0042] The clamping jaw mechanism 2 comprises a first servo motor 6, a first transmission shaft 7, a clamping jaw turnover piece 8, a horizontal rotating assembly and a clamping assembly. One side of the front end of the arm lever 5 is fixedly connected with the first servo motor 6. The transmission end of the first servo motor 6 is rotatably connected with the first transmission shaft 7. The first transmission shaft 7 is rotatably connected with the middle part of the arm lever 5. The surface of the first transmission shaft 7 is fixedly connected with the clamping jaw turnover piece 8. The clamping jaw turnover piece 8 and the fixed clamping piece 13 at the bottom are driven by the arm lever 5 to rotate by ninety degrees. Thus, the clamping and carrying of the object can be completed. The above-mentioned components play the role of driving and transmission, and drive the clamping jaw turnover piece 8 to rotate according to the needs of the user to conveniently clamp the object.

[0043] Embodiment three:

[0044] Please refer to the drawings Figures 1-8 As shown in the drawings, the horizontal rotating assembly comprises a sleeve joint 9, a second servo motor 10, a second transmission shaft 11 and a rotating sleeve 12. The bottom surface of the clamping jaw turnover piece 8 is fixedly connected with the sleeve joint 9. The middle part of the sleeve joint 9 is fixedly connected with the second servo motor 10. The transmission end of the bottom of the second servo motor 10 is rotatably connected with the second transmission shaft 11. The end away from the second servo motor 10 of the second transmission shaft 11 is fixedly connected with the rotating sleeve 12. The rotating sleeve 12 is rotatably connected with the middle part of the sleeve joint 9. The rotating sleeve 12 slides on the surface of the sleeve joint 9 and is limitingly connected with the sleeve joint 9. The position of the clamping assembly can be conveniently adjusted and limited.

[0045] Embodiment Four

[0046] Please refer to the drawings Figures 1-8 As shown, the negative pressure auxiliary mechanism 3 includes a tracheal protection frame 22, a shunt trachea 23, a negative pressure suction head 24, a gas collecting pipe 25, a negative pressure opening and closing assembly, and a negative pressure conveying assembly. The tracheal protection frame 22 is fixedly connected to the side of the movable clamping piece 15 away from the fixed clamping piece 13. The linear array of the middle part of the fixed clamping piece 13 is fixedly connected to a plurality of shunt tracheas 23. The shunt trachea 23 is fixedly connected to the negative pressure suction head 24 at one end close to the fixed clamping piece 13. The shunt trachea 23 is fixedly connected to the gas collecting pipe 25 at one end away from the negative pressure suction head 24.

[0047] The negative pressure opening and closing assembly includes a gas flow guide 26, a gas opening and closing valve 27, and a corrugated rubber air bag 28. The gas flow guide 26 is fixedly connected to the top surface of the fixed clamping piece 13. The gas flow guide 26 is insertedly connected to the gas opening and closing valve 27 at one end. The gas opening and closing valve 27 is fixedly connected to the movable piece guide block 16 close to the side of the first sliding guide rod 18. The middle part of the gas flow guide 26 and the gas opening and closing valve 27 is fixedly connected to the corrugated rubber air bag 28. The gas opening and closing valve 27 is away from the gas flow guide 26 during the movement of the movable clamping piece 15, so that the corrugated rubber air bag 28 is opened, which facilitates the negative pressure adsorption of the clamped component, increases the clamping strength, and uses adsorption to preliminarily position, thereby increasing the clamping adaptability.

[0048] The negative pressure conveying assembly includes a first gas supply pipe 29, a negative pressure gas pump 30, and a second gas supply pipe 31. One end of the first gas supply pipe 29 is fixedly connected to the output end of the gas collecting pipe 25. The first gas supply pipe 29 is fixedly connected to the gas opening and closing valve 27 away from the gas collecting pipe 25. The negative pressure gas pump 30 is fixedly connected to one side of the arm rod 5. The input end of the negative pressure gas pump 30 is fixedly connected to the second gas supply pipe 31. One end of the second gas supply pipe 31 away from the negative pressure gas pump 30 is fixedly connected to the surface of the gas flow guide 26.

[0049] Embodiment Five

[0050] Please refer to the drawings Figures 1-8 As shown, the turnover support mechanism 4 includes a second positioning piece 32, a second sliding guide rod 33, a distance adjusting assembly, and an automatic adjusting assembly. The second positioning piece 32 is fixedly connected to the side of the fixed clamping piece 13 away from the movable clamping piece 15 and at both ends of the avoiding groove 20. The second sliding guide rod 33 is fixedly connected to the middle part of the second positioning piece 32.

[0051] The distance adjusting assembly comprises a second electric telescopic pump 34, movable support rods 35 and support tail plates 36, the second electric telescopic pump 34 is fixedly connected to one side of the second positioning member 32 close to the fixed clamping member 13, the movable support rods 35 are slidably connected to the middle portions of the two side avoiding grooves 20, one side of each movable support rod 35 is slidably connected to the surface of the second sliding guide rod 33, the output end of the second electric telescopic pump 34 is fixedly connected to the movable support rod 35, the surfaces of the two movable support rods 35 are connected to the two support tail plates 36, and the two support tail plates 36 are fixedly and movably connected respectively.

[0052] The automatic adjusting assembly comprises a sliding block 37, a pushing member 38, a movable rod 39, a pulley 40 and a spring 41, the surface of the support tail plate 36 movably connected to the surface of the movable support rod 35 is fixedly connected with the sliding block 37, the inner wall of the sliding groove 21 is slidably connected with the pulley 40, the inner wall of the pulley 40 is slidably connected with the movable rod 39, one end of the movable rod 39 away from the pulley 40 is fixedly connected with the pushing member 38, the surface of the movable rod 39 is sleeved with the spring 41, and the spring 41 is arranged on the side of the sliding block 37 to buffer the sliding of the sliding block 37, so that damage to the clamped member caused by too fast sliding is avoided.

[0053] Working principle:

[0054] Firstly, when the mechanical arm main body 1 is started, the fixed clamping member 13 and the movable clamping member 15 are moved to the upper side of the carried object, then the output end of the first electric telescopic pump 19 is retracted, the movable clamping member 15 is slid on the surface of the first sliding guide rod 18 through the movable member guide block 16 to the side of the fixed clamping member 13, the gas opening and closing valve 27 is away from the gas flow guide member 26 to open the corrugated rubber air bag 28, at the same time, the gas flow guide member 26 is separated from the gas opening and closing valve 27 to make the negative pressure air pump 30, the second gas supply pipe 31 and the first gas supply pipe 29 communicate, the negative pressure air pump 30 sucks negative pressure to make the negative pressure suction head 24 adsorb the object in the middle of the fixed clamping member 13 and the movable clamping member 15, then the second electric telescopic pump 34 is started, the output end of the second electric telescopic pump 34 is retracted to drive the movable support rod 35 to slide on the surface of the avoiding groove 20, the avoiding groove 20 is slid to be close to the surface of the clamped object, the movable clamping member 15 is close to the fixed clamping member 13 at the same time, the pushing member 38 is extruded, the pushing member 38 is extruded to drive the movable rod 39 to drive the sliding block 37 and the support tail plate 36 to move at the same time, and then the support position of the support tail plate 36 can be automatically adjusted, then the mechanical arm main body 1 lifts the object, at the same time, the first servo motor 6 is started to drive the arm rod 5 to rotate, the clamping jaw turnover member 8 and the fixed clamping member 13 at the bottom are rotated by ninety degrees through the arm rod 5, and then the clamping and carrying of the object can be completed.

[0055] The application is described above by way of example with reference to the accompanying drawings, and it is obvious that the specific implementation of the application is not limited to the above-described manner, and as long as such non-essential improvements are made by adopting the method concept and technical solutions of the application, or the concept and technical solutions of the application are directly applied to other occasions without improvement, they are all within the protection scope of the application.

Claims

1. A cargo box transfer robotic arm, comprising a robotic arm body (1), a gripper mechanism (2), a negative pressure auxiliary mechanism (3), a flipping support mechanism (4), an arm (5), and a rotating sleeve (12), characterized in that: The front end of the main body (1) of the robotic arm is provided with an arm (5), and the end of the arm (5) away from the main body (1) of the robotic arm is provided with a gripper mechanism (2). A negative pressure auxiliary mechanism (3) is provided on one side of the gripper mechanism (2), and a flipping support mechanism (4) is provided in the middle of the gripper mechanism (2). The gripper mechanism (2) includes a first servo motor (6), a first transmission shaft (7), a gripper flipping component (8), a horizontal rotation component, and a clamping component. The first servo motor (6) is fixedly connected to one side of the front end of the arm (5). The transmission end of the first servo motor (6) is rotatably connected to the first transmission shaft (7). The first transmission shaft (7) is rotatably connected to the middle part of the arm (5). The gripper flipping component (8) is fixedly connected to the surface of the first transmission shaft (7). The clamping assembly includes a fixed clamping member (13), a movable part guide groove (14), a movable clamping member (15), a movable part guide block (16), a first positioning member (17), a first sliding guide rod (18), a first electric telescopic pump (19), a clearance groove (20), and a sliding groove (21). The bottom surface of the rotating sleeve (12) is fixedly connected to the fixed clamping member (13). The top surface of the fixed clamping member (13) is symmetrically provided with a movable part guide groove (14). The bottom surface of the fixed clamping member (13) is slidably connected to the movable clamping member (15). The top surface of the movable clamping member (15) is symmetrically fixedly connected to the movable part guide block (16). The flipping support mechanism (4) includes a second positioning member (32), a second sliding guide rod (33), a distance adjustment component, and an automatic adjustment component. The fixed clamping member (13) is located away from the movable clamping member (15) and is fixedly connected to the second positioning member (32) at both ends of the clearance groove (20). The second sliding guide rod (33) is fixedly connected to the middle of the second positioning member (32). The distance adjustment component includes a second electric telescopic pump (34), a movable support rod (35), and a support tail plate (36). The fixed clamping member (34) is located away from the movable clamping member (15). 13) A second electric telescopic pump (34) is fixedly connected to one side near the second positioning member (32). Movable support rods (35) are slidably connected to the middle of the clearance grooves (20) on both sides. One of the movable support rods (35) is slidably connected to the surface of the second sliding guide rod (33). The output end of the second electric telescopic pump (34) is fixedly connected to the movable support rod (35). Two support tail plates (36) are connected to the surfaces of the two movable support rods (35). The two support tail plates (36) are fixed and movable respectively.

2. The cargo box transfer robotic arm according to claim 1, characterized in that, The horizontal rotation assembly includes a sleeve (9), a second servo motor (10), a second transmission shaft (11), and a rotating sleeve (12). The bottom surface of the gripper flipper (8) is fixedly connected to the sleeve (9). The middle part of the sleeve (9) is fixedly connected to the second servo motor (10). The transmission end at the bottom of the second servo motor (10) is rotatably connected to the second transmission shaft (11). The end of the second transmission shaft (11) away from the second servo motor (10) is fixedly connected to the rotating sleeve (12). The rotating sleeve (12) is rotatably connected to the middle part of the sleeve (9).

3. The cargo box transfer robotic arm according to claim 2, characterized in that, The movable guide block (16) is slidably connected to the inner wall of the movable guide groove (14). The two ends of the movable guide groove (14) on one side of the top surface of the fixed clamping member (13) are fixedly connected to the first sliding guide rod (18). The movable guide block (16) on one side is slidably connected to the surface of the first sliding guide rod (18). The top surface of the fixed clamping member (13) is fixedly connected to the first electric telescopic pump (19). The output end of the first electric telescopic pump (19) is fixedly connected to another movable guide block (16). The surfaces of the fixed clamping member (13) and the movable clamping member (15) are symmetrically provided with two clearance grooves (20). The middle part of the two clearance grooves (20) on the surface of the fixed clamping member (13) is provided with a sliding groove (21).

4. The cargo box transfer robotic arm according to claim 3, characterized in that, The negative pressure auxiliary mechanism (3) includes a tracheal guard (22), a diverting trachea (23), a negative pressure suction head (24), a gas collection tube (25), a negative pressure opening and closing assembly, and a negative pressure delivery assembly. The tracheal guard (22) is fixedly connected to the side of the movable clamp (15) away from the fixed clamp (13). Multiple diverting tracheas (23) are fixedly connected in a linear array in the middle of the fixed clamp (13). The negative pressure suction head (24) is fixedly connected to the end of the diverting trachea (23) near the fixed clamp (13). The gas collection tube (25) is fixedly connected to the end of the diverting trachea (23) away from the negative pressure suction head (24).

5. A cargo box transfer robotic arm according to claim 4, characterized in that, The negative pressure opening and closing assembly includes a gas guide (26), a gas opening and closing valve (27), and a corrugated rubber airbag (28). The top surface of the fixed clamp (13) is fixedly connected to the gas guide (26). One end of the gas guide (26) is inserted and connected to the gas opening and closing valve (27). The gas opening and closing valve (27) is fixedly connected to the movable guide block (16) on the side near the first sliding guide rod (18). The corrugated rubber airbag (28) is fixedly connected to the middle of the gas guide (26) and the gas opening and closing valve (27).

6. A cargo box transfer robotic arm according to claim 5, characterized in that, The negative pressure delivery assembly includes a first air supply pipe (29), a negative pressure air pump (30), and a second air supply pipe (31). One end of the first air supply pipe (29) is fixedly connected to the output end of the gas manifold (25), and the end of the first air supply pipe (29) away from the gas manifold (25) is fixedly connected to the gas opening and closing valve (27). A negative pressure air pump (30) is fixedly connected to one side of the arm (5), and the input end of the negative pressure air pump (30) is fixedly connected to the second air supply pipe (31). The end of the second air supply pipe (31) away from the negative pressure air pump (30) is fixedly connected to the surface of the gas guide (26).

7. A cargo box transfer robotic arm according to claim 1, characterized in that, The automatic adjustment assembly includes a sliding block (37), a pusher (38), a movable rod (39), a pulley (40), and a spring (41). The sliding block (37) is fixedly connected to the surface of the support tail plate (36) which is movably connected to the surface of the movable support rod (35). The pulley (40) is slidably connected to the inner wall of the sliding groove (21). The movable rod (39) is slidably connected to the inner wall of the pulley (40). The pusher (38) is fixedly connected to the end of the movable rod (39) away from the pulley (40). The spring (41) is sleeved on the surface of the movable rod (39).

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