CN114603537A

CN114603537A - Workshop aluminium coiled material transport manipulator

Info

Publication number: CN114603537A
Application number: CN202210502714.7A
Authority: CN
Inventors: 魏锋
Original assignee: Jiangsu Xinmei New Material Technology Co ltd
Current assignee: Jiangsu Xinmei New Material Technology Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-06-10

Abstract

The invention discloses a production workshop aluminum coil carrying manipulator which comprises a base, wherein a rotatable supporting arm is arranged at the upper end of the base, a first connecting arm with an adjustable pitching angle is arranged at the upper end of the supporting arm, a first assembly box is arranged at one end, away from the supporting arm, of the first connecting arm, a rotatable second connecting arm is arranged at the first assembly box, a second assembly box is arranged at one end, away from the first assembly box, of the second connecting arm, a rotatable third connecting arm is arranged on the second assembly box, an installing frame with an adjustable pitching angle is arranged at one end, away from the second assembly box, of the third connecting arm, a fixing mechanism is arranged at the end part of the installing frame, and the fixing mechanism comprises an inner supporting mechanism and an outer clamping mechanism. Compared with the prior art, the invention has the advantages that: this manipulator can carry the aluminium coiled material of rolling one-tenth section of thick bamboo in a flexible way, and the in-process of transport is to the fixed effect preferred of aluminium coiled material, can effectively prevent droing of aluminium coiled material.

Description

Workshop aluminium coiled material transport manipulator

Technical Field

The application relates to a manipulator technology, in particular to a workshop aluminum coil carrying manipulator.

Background

The aluminium coiled material need be through receiving the reel to the aluminium coiled material rolling tube-shape in the in-process of workshop production, and need carry the transfer to the coiled material of rolling tube-shape in process of production, because the aluminium coiled material of tube-shape is heavier, and manpower handling efficiency is lower.

Some present coiled material handling equipment generally adopt fork truck to carry, and need the distance of the artifical yoke of adjusting of size according to coiled material coiling section of thick bamboo internal diameter, and the operation is inconvenient, can't be nimble transversely or vertical placing the aluminium coiled material of rolling one-tenth section of thick bamboo, and aluminium coiled material is not good at the fixed effect of in-process that the transport shifted simultaneously, causes droing of aluminium coiled material easily at the in-process of transport.

Disclosure of Invention

In order to overcome above technical defect, this application provides a workshop aluminium coiled material transport manipulator, and this manipulator can carry the aluminium coiled material of rolling one-tenth section of thick bamboo in a flexible way, and can fix the aluminium coiled material better in the in-process of transport.

In order to solve the technical problem, the application provides a workshop aluminum coil carrying manipulator which comprises a base, wherein a rotatable supporting arm is arranged at the upper end of the base, a first connecting arm with an adjustable pitching angle is arranged at the upper end of the supporting arm, a rotatable second connecting arm is arranged at one end, away from the supporting arm, of the first connecting arm, and a rotatable third connecting arm is arranged at one end, away from the first connecting arm, of the second connecting arm;

one end of the third connecting arm, which is far away from the second connecting arm, is provided with an installation frame with an adjustable pitching angle, and the end part of the installation frame is provided with a fixing mechanism, wherein the fixing mechanism comprises an inner supporting mechanism and an outer clamping mechanism;

the mounting frame comprises a U-shaped plate, two side plates are oppositely arranged at one end of the U-shaped plate, the two side plates are respectively rotatably connected with two sides of the bottom of the third connecting arm, the mounting plate is arranged at one end, away from the side plates, of the U-shaped plate, the inner supporting mechanism comprises a central cylinder arranged at the front end of the mounting plate, a plurality of groups of connecting rod mechanisms are arranged on the periphery of the outer side of the central cylinder, inner supporting plates capable of moving inside and outside are arranged at the end parts of each group of connecting rod mechanisms, and the outer end faces of the inner supporting plates are arc-shaped;

the outer clamping mechanism comprises moving blocks arranged on two sides of the mounting plate, and clamping jaws are arranged on the moving blocks.

Preferably, the link mechanism comprises a first link and a second link hinged to the outer side wall of the central cylinder, the first link and the second link are arranged in parallel, one ends, far away from the central cylinder, of the first link and the second link are hinged to the inner end of the inner supporting plate, a sliding sleeve is arranged on the central cylinder in a sliding mode, a plurality of third links corresponding to the positions of the inner supporting plates are hinged to the periphery of the sliding sleeve, one end, far away from the sliding sleeve, of each third link is hinged to the inner end of the corresponding inner supporting plate, a first air cylinder is arranged on one side, far away from the central cylinder, of the mounting plate, a piston rod of the first air cylinder penetrates through the mounting plate and extends into the central cylinder, a pushing block in sliding fit with the inner wall of the central cylinder is arranged at the end of the piston rod of the first air cylinder, a plurality of guide holes are arranged at the periphery of the central cylinder, and a plurality of connecting plates are arranged at the periphery of the pushing block and penetrate through the corresponding guide holes and are connected with the inner wall of the sliding sleeve.

Preferably, both sides of the U-shaped plate are provided with second cylinders, the end parts of piston rods of the second cylinders are connected with the moving blocks on the same side, guide rails are arranged at the front ends and the rear ends of both sides of the mounting plate, and the moving blocks are arranged on the corresponding guide rails in a sliding manner.

Preferably, the first connecting arm comprises a first movable plate, a second movable plate and a connecting frame, a U-shaped frame is arranged at the upper end of the supporting arm, the first movable plate and the second movable plate are hinged in the U-shaped frame and are arranged in parallel, one ends, far away from the U-shaped frame, of the first movable plate and the second movable plate are hinged to the connecting frame, the first assembly box is fixed to the connecting frame, a third air cylinder is hinged to the side wall of the supporting arm, and the upper end of a piston rod of the third air cylinder is hinged to the end portion of the first movable plate.

Preferably, the outer wall of the third connecting arm is hinged with a fourth cylinder, and one end, far away from the U-shaped plate, of each of the two side plates is connected with a connecting column, and the end part of a piston rod of the fourth cylinder is hinged with the connecting column.

Preferably, the inside of base is equipped with the installation cavity, and the lateral wall of installation cavity is equipped with first motor, and the output shaft of first motor is equipped with first worm, and the lower extreme of support arm is equipped with the first worm wheel that is located the installation cavity, and first worm and the meshing transmission of first worm wheel.

Preferably, the connecting frame is provided with a first assembly box, the outer side wall of the first assembly box is provided with a second motor, an output shaft of the second motor is provided with a second worm located in the first assembly box, the second connecting arm is provided with a rotating shaft rotatably connected with the first assembly box, the rotating shaft is provided with a second worm wheel located in the first assembly box, and the second worm is in meshing transmission with the second worm wheel.

Preferably, one end, far away from the first connecting arm, of the second connecting arm is provided with a second assembly box, the upper end of the third connecting arm is rotatably connected with the second assembly box, the outer side wall of the second assembly box is provided with a third motor, an output shaft of the third motor is provided with a third worm located in the second assembly box, the upper end of the third connecting arm is provided with a third worm wheel located in the second assembly box, and the third worm is in meshing transmission with the third worm wheel.

Preferably, a cross arm is arranged on the third connecting arm, a handrail is arranged at one end, away from the third connecting arm, of the cross arm, and a remote controller is arranged on the handrail and used for controlling the operation of the first cylinder, the second cylinder, the third cylinder, the fourth cylinder, the first motor, the second motor and the third motor.

Preferably, the inner end faces of the clamping jaws and the outer end face of the inner supporting plate are provided with anti-skid rubber pads.

According to the production workshop aluminum coiled material carrying manipulator, the position of the fixing mechanism can be flexibly adjusted through the rotatable supporting arm, the first connecting arm, the second connecting arm and the third connecting arm, aluminum coiled materials at different positions can be conveniently hoisted or placed, and the carrying efficiency is high; the inner supporting mechanism in the fixing mechanism can be used for carrying out inner supporting and fixing on the winding drums of the aluminum coiled materials with different inner diameters, and the outer clamping mechanism in the fixing mechanism can be used for clamping and fixing the aluminum coiled materials with different outer diameters, so that the fixing mechanism can be used for simultaneously fixing the inner side of the winding drum and the outer side of the aluminum coiled material, the aluminum coiled material can be effectively prevented from sliding off, and the safety is higher; and fixed establishment in this application can carry out the regulation of every single move angle to can be nimble transversely or vertically place the aluminium coil stock according to the demand.

Drawings

Fig. 1 is a schematic structural diagram of a production workshop aluminum coil handling robot according to an embodiment of the application.

Fig. 2 is a schematic structural diagram of a fixing mechanism of a workshop aluminum coil carrying manipulator according to an embodiment of the application.

Fig. 3 is a schematic external structural view of an internal support mechanism of a production shop aluminum coil handling robot according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of an inner support mechanism of a production workshop aluminum coil handling robot according to an embodiment of the application.

Fig. 5 is a schematic diagram of the internal structure of the base of the production workshop aluminum coil carrying robot according to an embodiment of the application.

Fig. 6 is a schematic view of the internal structure of the first assembly box of the production plant aluminum coil handling robot according to an embodiment of the present application.

Fig. 7 is a schematic view of the internal structure of the second assembly box of the production plant aluminum coil handling robot according to an embodiment of the present application.

Reference numerals: 1. a base, 2, a support arm, 3, a first connecting arm, 31, a first movable plate, 32, a second movable plate, 33, a connecting frame, 4, a first component box, 5, a second connecting arm, 6, a second component box, 7, a third connecting arm, 8, a mounting frame, 81, a U-shaped plate, 82, a side plate, 83, a mounting plate, 84, a connecting column, 9, a fixing mechanism, 90, an inner supporting mechanism, 901, a central cylinder, 902, a link mechanism, 9021, a first connecting rod, 9022, a second connecting rod, 903, an inner supporting plate, 904, a sliding sleeve, 905, a third connecting rod, 906, a first cylinder, 907, a pushing block, 908, a guide hole, 909, a connecting plate, 91, an outer clamping mechanism, 911, a moving block, 912, a clamping jaw, 913, a second cylinder, 914, a guide rail, 10, a U-shaped frame, 11, a third cylinder, 12, a fourth cylinder, 13, a first worm gear, 14, a first worm gear, 15, a second motor, 16. the device comprises a second worm 17, a rotating shaft 18, a second worm wheel 19, a third motor 20, a third worm 21, a third worm wheel 22, a cross arm 23, an armrest 24, a remote controller 25 and a first motor.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in the attached figure 1, the mechanical arm for transporting the aluminum coiled materials in the production workshop comprises a base 1, a rotatable supporting arm 2 is arranged at the upper end of the base 1, a first connecting arm 3 with an adjustable pitching angle is arranged at the upper end of the supporting arm 2, a rotatable second connecting arm 5 is arranged at one end, far away from the supporting arm 2, of the first connecting arm 3, and a rotatable third connecting arm 7 is arranged at one end, far away from the first connecting arm 3, of the second connecting arm 5;

an installation frame 8 with an adjustable pitching angle is arranged at one end, away from the second connecting arm 5, of the third connecting arm 7, a fixing mechanism 9 is arranged at the end part of the installation frame 8, and the fixing mechanism 9 comprises an inner supporting mechanism 90 and an outer clamping mechanism 91;

in one embodiment, the mounting frame 8 comprises a U-shaped plate 81, one end of the U-shaped plate 81 is provided with two side plates 82 opposite to each other, the two side plates 82 are rotatably connected with two sides of the bottom of the third connecting arm 7 respectively, one end of the U-shaped plate 81, which is far away from the side plates 82, is provided with a mounting plate 83, the inner support mechanism 90 comprises a central cylinder 901 arranged at the front end of the mounting plate 83, the outer circumference of the central cylinder 901 is provided with a plurality of groups of link mechanisms 902, the end part of each group of link mechanisms 902 is provided with an inner support plate 903 capable of moving inside and outside, the outer end surface of the inner support plate 903 is arc-shaped, wherein the inner support plate 903 can move inside and outside so as to support winding cylinders of aluminum coils with different inner diameters, and the aluminum coils can be lifted up;

as shown in fig. 2, the outer clamping mechanism 91 comprises moving blocks 911 arranged on two sides of the mounting plate 83, clamping jaws 912 are arranged on the moving blocks 911, the clamping jaws 912 on two sides of the mounting plate 83 can clamp two sides of a winding drum of aluminum coils with different outer diameters, and the aluminum coils can be further prevented from falling off.

As shown in fig. 3-fig. 4, the link mechanism 902 includes a first link 9021 and a second link 9022 hinged to the outer side wall of the central cylinder 901, the first link 9021 and the second link 9022 are arranged in parallel, one ends of the first link 9021 and the second link 9022 far away from the central cylinder 901 are hinged to the inner end of the inner support plate 903, a sliding sleeve 904 is slidably arranged on the central cylinder 901, a plurality of third links 905 corresponding to the positions of the inner support plates 903 are hinged to the circumference of the sliding sleeve 904, one end of the third link 905 far away from the sliding sleeve 904 is hinged to the inner end of the corresponding inner support plate 903, a first cylinder 906 is arranged on one side of the mounting plate 83 away from the central cylinder 901, a piston rod of the first cylinder 906 passes through the mounting plate 83 and extends into the central cylinder 901, a push block 907 slidably engaged with the inner wall of the central cylinder 901 is arranged at the end of the piston rod of the first cylinder 906, a plurality of guide holes 908 are arranged on the circumference of the central cylinder 901, a plurality of connection plates 909 pass through the corresponding guide holes 908 and are arranged on the circumference of the connection plates 909 and are engaged with the sliding sleeve 904 The inner walls are connected, wherein the first cylinder 906 is started to drive the pushing block 907 at the end of the piston rod to move in the central cylinder 901, the pushing block 907 can drive the sliding sleeve 904 to slide on the central cylinder 901 through the connecting plate 909, the inclination angle of the third connecting rod 905 can be adjusted through the movement of the sliding sleeve 904, and under the matching action of the first connecting rod 9021 and the second connecting rod 9022, the inner supporting plates 903 can synchronously move inside and outside, so that the inner supporting plates 903 can support and fix the winding cylinder of the aluminum coiled material inside, wherein the first connecting rod 9021 and the second connecting rod 9022 are arranged in parallel to ensure that the inner supporting plates 903 are kept in a parallel state with the central cylinder 901 in the inside and outside movement process, the inclination of the inner supporting plates 903 is prevented, and a better supporting effect is achieved.

The both sides of U template 81 all are equipped with second cylinder 913, and the tip and the homonymy movable block 911 of second cylinder 913 piston rod are connected, and both ends all are equipped with guide rail 914 around the mounting panel 83 both sides, and movable block 911 slides and sets up on corresponding guide rail 914, and second cylinder 913 can promote movable block 911 smooth movement on guide rail 914 to be convenient for adjust the distance between the both sides clamping jaw 912 in a flexible way.

In one embodiment, the first connecting arm 3 comprises a first movable plate 31, a second movable plate 32 and a connecting frame 33, the upper end of the supporting arm 2 is provided with a U-shaped frame 10, the first movable plate 31 and the second movable plate 32 are both hinged in the U-shaped frame 10, the first movable plate 31 and the second movable plate 32 are arranged in parallel, one ends of the first movable plate 31 and the second movable plate 32 far away from the U-shaped frame 10 are both hinged with the connecting frame 33, the first assembly box 4 is fixed on the connecting frame 33, the side wall of the supporting arm 2 is hinged with a third cylinder 11, the upper end of a piston rod of the third cylinder 11 is hinged with the end of the first movable plate 31, the third cylinder 11 is started to adjust the pitch angle of the first movable plate 31, the first movable plate 31 can synchronously drive the second movable plate 32 to rotate through the connecting frame 33, thereby facilitating flexible adjustment of the height of the second connecting arm 5 on the first assembly box 4 according to requirements and flexible adjustment of the fixed height of the third connecting arm 7 and the fixing mechanism 9, the first movable plate 31 and the second movable plate 32 are arranged in parallel, so that the second connecting arm 5 at the end of the connecting frame 33 is in a horizontal state, and the fixing mechanism 9 can accurately fix the aluminum coiled material.

The outer wall of the third connecting arm 7 is hinged to a fourth cylinder 12, one end, far away from the U-shaped plate 81, of each of the two side plates 82 is connected with a connecting column 84, the end part, far away from the piston rod of the corresponding fourth cylinder 12, of each of the four side plates is hinged to the corresponding connecting column 84, the corresponding fourth cylinder 12 is started to drive the two side plates 82 to rotate synchronously, the side plates 82 can flexibly adjust the pitching angle of the fixing mechanism 9 through the U-shaped plate 81, and the aluminum coiled material can be conveniently placed transversely or vertically.

As shown in fig. 5, a mounting cavity is formed in the base 1, a first motor 25 is arranged on a side wall of the mounting cavity, a first worm 13 is arranged on an output shaft of the first motor 25, a first worm wheel 14 located in the mounting cavity is arranged at the lower end of the support arm 2, the first worm 13 is in meshing transmission with the first worm wheel 14, the first motor 25 drives the first worm 13 to rotate, the first worm 13 drives the first worm wheel 14 to rotate, and the support arm 2 can be driven to rotate by the rotation of the first worm wheel 14.

As shown in fig. 6, a first component box 4 is disposed on the connecting frame 33, a second motor 15 is disposed on an outer side wall of the first component box 4, a second worm 16 located in the first component box 4 is disposed on an output shaft of the second motor 15, a rotating shaft 17 rotatably connected to the first component box 4 is disposed on the second connecting arm 5, a second worm wheel 18 located in the first component box 4 is disposed on the rotating shaft 17, the second worm 16 and the second worm wheel 18 are in meshed transmission, the second motor 15 drives the second worm 16 to rotate, the second worm 16 drives the second worm wheel 18 to rotate, and the second worm wheel 18 rotates to drive the second connecting arm 5 to rotate.

As shown in fig. 7, a second assembly box 6 is arranged at one end of the second connecting arm 5 away from the first connecting arm 3, the upper end of the third connecting arm 7 is rotatably connected with the second assembly box 6, a third motor 19 is arranged on the outer side wall of the second assembly box 6, a third worm 20 located in the second assembly box 6 is arranged on an output shaft of the third motor 19, a third worm wheel 21 located in the second assembly box 6 is arranged at the upper end of the third connecting arm 7, the third worm 20 is in meshing transmission with the third worm wheel 21, the rotation of the third motor 19 drives the third worm 20 to rotate, the rotation of the third worm 20 drives the third worm wheel 21 to rotate, and the rotation of the third worm wheel 21 can drive the rotation of the third connecting arm 7.

A cross arm 22 is arranged on the third connecting arm 7, an armrest 23 is arranged at one end, far away from the third connecting arm 7, of the cross arm 22, a remote controller 24 is arranged on the armrest 23, the remote controller 24 is used for controlling the operation of the first air cylinder 906, the second air cylinder 913, the third air cylinder 11, the fourth air cylinder 12, the first motor 25, the second motor 15 and the third motor 19, and a worker can hold the armrest 23 to flexibly operate the whole manipulator.

The inner end face of the clamping jaw 912 and the outer end face of the inner support plate 903 are both provided with anti-skid rubber pads, and the anti-skid rubber pads can further prevent the aluminum coiled material from falling off.

The working principle is as follows: the base 1 is fixed at a corresponding working place through mounting holes arranged on the periphery of the base, the position of the fixing mechanism 9 needs to be adjusted according to the position of an aluminum coiled material winding drum, and the specific steps include that a worker holds the handrail 23, can start the third cylinder 11 to adjust the pitching angle of the first movable plate 31, and the first movable plate 31 can synchronously drive the second movable plate 32 to rotate through the connecting frame 33, so that the height of the second connecting arm 5 on the first component box 4 can be flexibly adjusted according to the requirement, and the height of the fixing mechanism 9 can be adjusted; the first motor 25 is started to drive the supporting arm 2 to rotate, the second motor 15 is started to drive the second connecting arm 5 to rotate, the third motor 19 is started to drive the third connecting arm 7 to rotate until the inner support mechanism 90 moves to the inside of the aluminum coiled material winding drum, when the aluminum coiled material needs to be lifted, the first cylinder 906 is started, the first cylinder 906 can drive the pushing block 907 at the end part of the piston rod of the first cylinder 906 to move in the central drum 901, the pushing block 907 can drive the sliding sleeve 904 to slide on the central drum 901 through the connecting plate 909, the inclination angle of the third connecting rod 905 can be adjusted through the movement of the sliding sleeve 904, and under the matching action of the first connecting rod 9021 and the second connecting rod 9022, the inner supporting plates 903 can synchronously move inside and outside, so that the inner supporting plates 903 can support and fix the aluminum coiled material winding drum; the second cylinder 913 is started to push the moving block 911 to move stably on the guide rail 914, so that the distance between the clamping jaws 912 on the two sides can be adjusted flexibly, the clamping jaws 912 can clamp the two sides of the aluminum coiled material, and the aluminum coiled material can be effectively prevented from slipping off; after the aluminum coil is fixed, the position of the fixing mechanism 9 can be further adjusted by controlling the first cylinder 906, the second cylinder 913, the third cylinder 11, the fourth cylinder 12, the first motor 25, the second motor 15 and the third motor 19 to operate again through the remote controller 24, so that the coil can be conveniently conveyed to a specified position.

The above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions, which are defined by the claims of this application.

Claims

1. The mechanical arm for carrying the aluminum coiled materials in the production workshop comprises a base (1), a rotatable supporting arm (2) is arranged at the upper end of the base (1), a first connecting arm (3) with an adjustable pitching angle is arranged at the upper end of the supporting arm (2), a rotatable second connecting arm (5) is arranged at one end, away from the supporting arm (2), of the first connecting arm (3), a rotatable third connecting arm (7) is arranged at one end, away from the first connecting arm (3), of the second connecting arm (5), and the mechanical arm is characterized in that,

an installation frame (8) with an adjustable pitching angle is arranged at one end, away from the second connecting arm (5), of the third connecting arm (7), a fixing mechanism (9) is arranged at the end part of the installation frame (8), and the fixing mechanism (9) comprises an inner supporting mechanism (90) and an outer clamping mechanism (91);

the mounting frame (8) comprises a U-shaped plate (81), two side plates (82) are oppositely arranged at one end of the U-shaped plate (81), the two side plates (82) are respectively rotatably connected with two sides of the bottom of the third connecting arm (7), a mounting plate (83) is arranged at one end, far away from the side plates (82), of the U-shaped plate (81), the inner supporting mechanism (90) comprises a central cylinder (901) arranged at the front end of the mounting plate (83), a plurality of groups of connecting rod mechanisms (902) are arranged on the periphery of the outer side of the central cylinder (901), an inner supporting plate (903) capable of moving inside and outside is arranged at the end part of each group of connecting rod mechanisms (902), and the outer end face of the inner supporting plate (903) is arc-shaped;

the outer clamping mechanism (91) comprises moving blocks (911) arranged on two sides of the mounting plate (83), and clamping jaws (912) are arranged on the moving blocks (911).

2. The manipulator for transporting the aluminum coils in the production workshop as recited in claim 1, wherein the link mechanism (902) comprises a first link (9021) and a second link (9022) hinged to the outer side wall of the central cylinder (901), the first link (9021) and the second link (9022) are arranged in parallel, one ends of the first link (9021) and the second link (9022) far away from the central cylinder (901) are hinged to the inner end of the inner support plate (903), a sliding sleeve (904) is slidably arranged on the central cylinder (901), a plurality of third links (905) corresponding to the inner support plate (903) are circumferentially hinged to the upper circumference of the sliding sleeve (904), one end of the third link (905) far away from the sliding sleeve (904) is hinged to the inner end of the corresponding inner support plate (903), and a first cylinder (906) is arranged on one side of the mounting plate (83) far away from the central cylinder (901), the piston rod of the first air cylinder (906) penetrates through the mounting plate (83) and extends into the central cylinder (901), the end part of the piston rod of the first air cylinder (906) is provided with a pushing block (907) in sliding fit with the inner wall of the central cylinder (901), the upper circumference of the central cylinder (901) is provided with a plurality of guide holes (908), the upper circumference of the pushing block (907) is provided with a plurality of connecting plates (909), and the connecting plates (909) penetrate through the corresponding guide holes (908) and are connected with the inner wall of the sliding sleeve (904).

3. The mechanical arm for transporting aluminum coils in a production workshop as claimed in claim 1, wherein second air cylinders (913) are arranged on two sides of the U-shaped plate (81), the end parts of piston rods of the second air cylinders (913) are connected with the moving blocks (911) on the same side, guide rails (914) are arranged at the front end and the rear end of two sides of the mounting plate (83), and the moving blocks (911) are slidably arranged on the corresponding guide rails (914).

4. The mechanical arm for transporting aluminum coils in a production workshop as claimed in claim 1, wherein the first connecting arm (3) comprises a first movable plate (31), a second movable plate (32) and a connecting frame (33), the upper end of the supporting arm (2) is provided with a U-shaped frame (10), the first movable plate (31) and the second movable plate (32) are hinged in the U-shaped frame (10) and are arranged in parallel, one ends of the first movable plate (31) and the second movable plate (32) far away from the U-shaped frame (10) are hinged to the connecting frame (33), the side wall of the supporting arm (2) is hinged to a third cylinder (11), and the upper end of the piston rod of the third cylinder (11) is hinged to the end of the first movable plate (31).

5. The manipulator for transporting the aluminum coils in the production workshop as claimed in claim 1, wherein the outer wall of the third connecting arm (7) is hinged with a fourth cylinder (12), one end of each of the two side plates (82) far away from the U-shaped plate (81) is connected with a connecting column (84), and the end of the piston rod of the fourth cylinder (12) is hinged with the connecting column (84).

6. The mechanical arm for handling aluminum coils in a production workshop according to claim 1, wherein a mounting cavity is formed in the base (1), a first motor (25) is arranged on a side wall of the mounting cavity, a first worm (13) is arranged on an output shaft of the first motor (25), a first worm wheel (14) located in the mounting cavity is arranged at the lower end of the support arm (2), and the first worm (13) is in meshing transmission with the first worm wheel (14).

7. The mechanical arm for transporting aluminum coils in a production workshop as claimed in claim 4, wherein a first assembly box (4) is arranged on the connecting frame (33), a second motor (15) is arranged on the outer side wall of the first assembly box (4), a second worm (16) located in the first assembly box (4) is arranged on the output shaft of the second motor (15), a rotating shaft (17) rotationally connected with the first assembly box (4) is arranged on the second connecting arm (5), a second worm wheel (18) located in the first assembly box (4) is arranged on the rotating shaft (17), and the second worm (16) and the second worm wheel (18) are in meshing transmission.

8. The mechanical arm for carrying aluminum coils in a production workshop as claimed in claim 1, wherein a second assembly box (6) is arranged at one end, away from the first connecting arm (3), of the second connecting arm (5), the upper end of the third connecting arm (7) is rotatably connected with the second assembly box (6), a third motor (19) is arranged on the outer side wall of the second assembly box (6), a third worm (20) located in the second assembly box (6) is arranged on the output shaft of the third motor (19), a third worm wheel (21) located in the second assembly box (6) is arranged at the upper end of the third connecting arm (7), and the third worm (20) is in meshing transmission with the third worm wheel (21).

9. The production workshop aluminum coil carrying manipulator as claimed in claim 1, wherein a cross arm (22) is arranged on the third connecting arm (7), an armrest (23) is arranged at one end of the cross arm (22) far away from the third connecting arm (7), a remote controller (24) is arranged on the armrest (23), and the remote controller (24) is used for controlling the operation of the first cylinder (906), the second cylinder (913), the third cylinder (11), the fourth cylinder (12), the first motor (25), the second motor (15) and the third motor (19).