Detachable mechanical arm for exhibition stand assembly

Abstract

The invention discloses a detachable mechanical arm for exhibition stand assembly, and relates to the technical field of mechanical arms, the detachable mechanical arm comprises a surrounding frame and a positioning plate, the positioning plate is fixedly mounted at the bottom end of the inner wall of the surrounding frame, a steel frame is mounted in the surrounding frame, and a mechanical arm body is fixedly mounted on the surface of one side of the surrounding frame; when a climbing contact plate makes contact with a reinforcing steel frame, the whole equipment and a mechanical arm can climb along the surface of the steel frame due to torsion, at the moment, a contact rubber wheel can rotate on the outer side surface of the steel frame along with overall movement of the equipment, and overall climbing of the equipment is achieved; therefore, the defects that in the prior art, a mechanical arm is troublesome to install, if the mechanical arm needs to be moved for the second time during installation, a fixing piece of the mechanical arm and the ground needs to be disassembled again, the operation range of a fixed position type mechanical arm in the prior art is small, the installation and disassembly processes are troublesome, and the exhibition stand assembly efficiency is low are overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of robotic arms, and particularly to a detachable robotic arm for booth assembly. Background Art

[0002] A robotic arm refers to a complex system with high precision, multiple inputs and outputs, high non-linearity, and strong coupling. Due to its unique operational flexibility, it has been widely used in industrial assembly, safety explosion protection and other fields. A robotic arm is a complex system with uncertainties such as parameter perturbation, external interference, and unmodeled dynamics. Robotic arms are also widely used in the technical field of booth assembly. By utilizing the high-precision advantage of the robotic arm, the booth can be assembled more conveniently, quickly and efficiently.

[0003] For the robotic arm for booth assembly in the prior art, when assembling the booth, it is usually necessary for workers to fix the robotic arm to the ground with bolts, and then use the robotic arm to clamp various objects to cooperate with the workers to achieve the installation function. However, due to the troublesome installation of the robotic arm in the prior art, and if the robotic arm needs to be moved secondly, it is necessary to re-dismantle the fixing parts between the robotic arm and the ground before the effect of secondary movement can be achieved. As a result, the operation range of the fixed-position robotic arm in the prior art is relatively small, and the installation and disassembly processes are relatively troublesome, resulting in a low booth assembly efficiency. In view of the above technical defects, a solution is now proposed. Summary of the Invention

[0004] The purpose of the present invention is that when the climbing contact plate contacts the reinforcement steel frame, due to the torsion force, the entire device and the robotic arm will climb along the surface of the steel frame. At this time, the contact rubber wheels will rotate on the outer surface of the steel frame as the whole device moves, realizing the overall climbing of the device, so as to facilitate the displacement climbing of the robotic arm and better perform high-altitude operations, thereby making up for the troublesome installation of the robotic arm in the prior art. And if the robotic arm needs to be moved secondly, it is necessary to re-dismantle the fixing parts between the robotic arm and the ground before the effect of secondary movement can be achieved. As a result, the operation range of the fixed-position robotic arm in the prior art is relatively small, and the installation and disassembly processes are relatively troublesome, resulting in a low booth assembly efficiency.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A robotic arm for assembling a detachable exhibition stand, comprising an enclosing frame and a positioning plate. The positioning plate is fixedly installed at the bottom end of the inner wall of the enclosing frame. A steel frame is installed inside the enclosing frame. A robotic arm is fixedly installed on one side surface of the enclosing frame. A first sprocket is rotatably installed inside the positioning plate. A climbing chain is engaged with the outer surface of the first sprocket. A climbing contact plate is fixedly installed on one side surface of the climbing chain. Anti-slip rubber is fixedly installed inside the climbing contact plate. A second sprocket is engaged with the inner wall of the climbing chain. A driven rod is fixedly installed inside the second sprocket. A first helical gear is fixedly installed on the outer surface of the driven rod. A disassembly component is installed on one side surface of the enclosing frame. A climbing mechanism is installed on one side surface of the enclosing frame; The disassembly component includes a docking plate. The docking plate is installed on one side surface of the enclosing frame. A docking groove is formed on one side surface of the enclosing frame. A spiral hole is formed on one side surface of the docking plate. A reinforcing bolt is threadedly connected to the inner wall of the spiral hole.

[0006] Further, there are two positioning plates evenly distributed on the bottom end surface of the inner wall of the enclosing frame. A first sprocket is correspondingly distributed inside each positioning plate. A climbing chain is correspondingly distributed on the outer surface of each first sprocket. A number of climbing contact plates are arranged in a circular array on one side surface of the climbing chain. Anti-slip rubber is correspondingly distributed inside each climbing contact plate.

[0007] Further, the climbing contact plate and the anti-slip rubber are in movable contact with the steel frame. A second sprocket is correspondingly engaged with the inner wall of each climbing chain. A driven rod and a first helical gear are correspondingly distributed inside each second sprocket. The driven rod is rotatably and movably connected to the inner wall of the enclosing frame.

[0008] Further, there are four docking grooves linearly arranged on one side surface of the enclosing frame. The one side surface of the docking plate is in movable contact with the one side surface of the enclosing frame. There are four spiral holes linearly arranged on one side surface of the docking plate. A reinforcing bolt is rotatably installed in the inner wall of each spiral hole. The reinforcing bolt is rotatably and threadedly connected to the inner wall of the docking groove.

[0009] Further, the climbing mechanism includes a sliding component and a driving component. The sliding component includes a rotating groove. The rotating groove is formed on one side surface of the inner walls of the enclosing frame and the docking plate. A damping bearing is fixedly installed on the outer sides of the enclosing frame and the docking plate. A rotating rod is installed inside the damping bearing. A contact rubber wheel is fixedly installed on the outer surface of the rotating rod.

[0010] Further, the rotating grooves are several and are distributed in an annular array on the inner walls of the surrounding frame and the docking plate. A rotating rod is correspondingly distributed on the inner wall of each rotating groove. Two contact rubber wheels are correspondingly distributed on the outer surface of each rotating rod. Two damping bearings are correspondingly distributed on the outer surface of each rotating rod. The contact rubber wheels are in rolling contact with the outer surface of the steel frame.

[0011] Further, the driving assembly is a small reducer. The small reducer is fixedly installed on one side surface of the surrounding frame. A transmission shaft is installed at the output end of the small reducer. A second helical gear is fixedly installed on the outer surface of the transmission shaft. A driving motor is installed at the output end of the small reducer.

[0012] Further, the transmission shaft extends from the outside of the surrounding frame to its inside. Two second helical gears are equidistantly distributed on the outer surface of the transmission shaft. The second helical gear meshes with the first helical gear. The transmission shaft is rotatably connected to the surrounding frame in an active manner.

[0013] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows: For the detachable exhibition booth assembly robotic arm, when the climbing contact plate comes into contact with the reinforced steel frame, the entire device and the robotic arm will climb along the surface of the steel frame due to torsion. At this time, the contact rubber wheels will rotate on the outer surface of the steel frame as the whole device moves, realizing the overall climbing of the device, so as to facilitate the displacement climbing of the robotic arm and better perform high-altitude operations. This makes up for the problems in the prior art that the installation of the robotic arm is relatively troublesome, and if the robotic arm needs to be moved secondarily, the fixing parts between the robotic arm and the ground need to be disassembled again to achieve the secondary movement effect, resulting in a small operating range of the fixed-position robotic arm in the prior art and a relatively troublesome installation and disassembly process, leading to a low exhibition booth assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Shows the overall external structure schematic diagram of the present invention; Figure 2 Shows the overall side structure schematic diagram of the present invention; Figure 3 Shows the climbing chain structure schematic diagram of the present invention; Figure 4 Shows the external structure schematic diagram of another angle of the present invention; Figure 5 Shows the overall internal structure schematic diagram of the present invention; Figure 6 Shows the docking plate structure schematic diagram of the present invention; Figure 7 Shows the present inventionFigure 2 Schematic enlarged view of the structure at A in Figure 8 shows the present invention Figure 5 Schematic enlarged view of the structure at B in

[0015] Legend: 1. Enclosing frame; 101. Positioning plate; 102. Steel frame; 103. Manipulator; 104. First sprocket; 105. Climbing chain; 106. Climbing contact plate; 107. Anti-slip rubber; 108. Second sprocket; 109. Driven rod; 110. First helical gear; 2. Docking plate; 201. Docking groove; 202. Spiral hole; 203. Reinforcing bolt; 3. Rotating groove; 301. Damping bearing; 302. Rotating rod; 303. Contact rubber wheel; 4. Miniature reducer; 401. Transmission shaft; 402. Second helical gear; 403. Driving motor. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] It should be noted that in the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 should not be construed as a limitation to the present invention.

[0018] Such as Figures 1 - 8As shown in the figure, the present invention discloses a robotic arm for assembling a detachable exhibition stand, which includes an enclosing frame 1 and a positioning plate 101. The positioning plate 101 is fixedly installed at the bottom end of the inner wall of the enclosing frame 1. A steel frame 102 is installed inside the enclosing frame 1. A robotic arm 103 is fixedly installed on one side surface of the enclosing frame 1. A first sprocket 104 is rotatably installed on the inner wall of the positioning plate 101. A climbing chain 105 is meshed with the outer surface of the first sprocket 104. A climbing contact plate 106 is fixedly installed on one side surface of the climbing chain 105. An anti-slip rubber 107 is fixedly installed on the inner wall of the climbing contact plate 106. A second sprocket 108 is meshed with the inner wall of the climbing chain 105. A driven rod 109 is fixedly installed on the inner wall of the second sprocket 108. A first helical gear 110 is fixedly installed on the outer surface of the driven rod 109. A disassembly component is installed on one side surface of the enclosing frame 1. A climbing mechanism is installed on one side surface of the enclosing frame 1.

[0019] In the embodiment of the present invention, when the climbing chain 105 rotates counterclockwise, the climbing contact plate 106 installed on its outer surface will move along the path of the climbing chain 105. As the climbing chain 105 continues to rotate, at this time, the climbing contact plate 106 will come into contact with the reinforcement steel frame 102 inside the steel frame 102. Because the drive motor 403 is still in the starting state at this time, when the climbing contact plate 106 comes into contact with the reinforcement steel frame 102, the entire device and the robotic arm 103 will climb along the surface of the steel frame 102 due to the torque. At this time, the contact rubber wheel 303 will rotate on the outer surface of the steel frame 102 as the whole device moves, realizing the overall climbing of the device, so as to facilitate the displacement climbing of the robotic arm 103 and better perform high-altitude operations.

[0020] Refer to Figures 1 - 8, Specifically, the disassembly component includes a docking plate 2, which is installed on one side surface of the surrounding frame 1. A docking groove 201 is provided on one side surface of the surrounding frame 1. A spiral hole 202 is provided on one side surface of the docking plate 2. A reinforcing bolt 203 is threadedly connected to the inner wall of the spiral hole 202. The docking grooves 201 are four and are linearly arrayed on one side surface of the surrounding frame 1. One side surface of the docking plate 2 is in movable contact with one side surface of the surrounding frame 1. The spiral holes 202 are four and are linearly arrayed on one side surface of the docking plate 2. A reinforcing bolt 203 is rotatably installed on the inner wall of each spiral hole 202. The reinforcing bolt 203 is threadedly and rotatably connected to the inner wall of the docking groove 201. Two positioning plates 101 are provided at equal intervals on the bottom surface of the inner wall of the surrounding frame 1. A first sprocket 104 is correspondingly distributed on the inner wall of each positioning plate 101. A climbing chain 105 is correspondingly distributed on the outer surface of each first sprocket 104. A number of climbing contact plates 106 are provided in an annular array on one side surface of the climbing chain 105. An anti-slip rubber 107 is correspondingly distributed on the inner wall of each climbing contact plate 106. The climbing contact plate 106 and the anti-slip rubber 107 are in movable contact with the steel frame 102. A second sprocket 108 is correspondingly meshed with the inner wall of each climbing chain 105. A driven rod 109 and a first helical gear 110 are correspondingly distributed on the inner wall of each second sprocket 108. The driven rod 109 is rotatably connected to the inner wall of the surrounding frame 1.

[0021] In the embodiment of the present invention, pick up the docking plate 2 and place it on one side surface of the surrounding frame 1, and align the docking plate 2 with the docking groove 201 provided on one side surface of the surrounding frame 1. When the alignment is completed, push the docking plate 2 so that one side surface of the docking plate 2 is inserted into the inner wall of the docking groove 201, so that the docking plate 2 and the surrounding frame 1 are spliced with each other. When the splicing of the two is completed, insert the reinforcing bolt 203 into the inner wall of the spiral hole 202 and rotate it so that the reinforcing bolt 203 rotates on the inner wall of the spiral hole 202. By continuously rotating the reinforcing bolt 203, the reinforcing bolt 203 is finally inserted into the interior of the surrounding frame 1.

[0022] Refer to Figures 1 - 8, Specifically, the climbing mechanism includes a sliding component and a driving component. The sliding component includes a rotating groove 3, which is opened on the inner wall side surface of the surrounding frame 1 and the docking plate 2. A damping bearing 301 is fixedly installed on the outer sides of the surrounding frame 1 and the docking plate 2. A rotating rod 302 is installed on the inner wall of the damping bearing 301. A contact rubber wheel 303 is fixedly installed on the outer surface of the rotating rod 302. The rotating grooves 3 are several and are distributed in an annular array on the inner walls of the surrounding frame 1 and the docking plate 2. A rotating rod 302 is correspondingly distributed on the inner wall of each rotating groove 3. Two contact rubber wheels 303 are correspondingly distributed on the outer surface of each rotating rod 302. Two damping bearings 301 are correspondingly distributed on the outer surface of each rotating rod 302. The contact rubber wheel 303 is in rolling contact with the outer surface of the steel frame 102.

[0023] In the embodiment of the present invention, the reinforcing bolt 203 is rotated again. The secondary rotation and tightening of the reinforcing bolt 203 forces the contact rubber wheel 303 to pre-press the surface of the steel frame 102, so that the contact rubber wheel 303 can fully contact the outer surface of the steel frame 102, preventing the robotic arm 103 from shaking due to looseness during lifting.

[0024] Refer to Figures 1 - 8 , Specifically, the driving component is a small reducer 4. The small reducer 4 is fixedly installed on one side surface of the surrounding frame 1. A transmission shaft 401 is installed at the output end of the small reducer 4. A second helical gear 402 is fixedly installed on the outer surface of the transmission shaft 401. A driving motor 403 is installed at the output end of the small reducer 4. The transmission shaft 401 extends from the outside of the surrounding frame 1 to its inside. Two second helical gears 402 are equidistantly distributed on the outer surface of the transmission shaft 401. The second helical gear 402 meshes with the first helical gear 110. The transmission shaft 401 is rotatably connected to the surrounding frame 1 in an active manner.

[0025] In an embodiment of the present invention, when the robotic arm 103 needs to climb to a certain height for operation after installation, the drive motor 403 is started at this time. The output end of the drive motor 403 is connected to the output end of the small reducer 4. Therefore, when the drive motor 403 is started, the transmission shaft 401 installed at the output end of the small reducer 4 will rotate on the inner wall of the surrounding frame 1. A second helical gear 402 is installed on the outer surface of the transmission shaft 401, and the second helical gear 402 will rotate together with the transmission shaft 401. The second helical gear 402 meshes with the first helical gear 110. Therefore, when the second helical gear 402 rotates, it will drive the driven rod 109 to rotate on the inner wall of the surrounding frame 1 through the first helical gear 110. A first sprocket 104 is fixedly installed on the outer surface of the driven rod 109. At this time, the first sprocket 104 will rotate following the driven rod 109. A climbing chain 105 meshes with the outer surfaces of the first sprocket 104 and the second sprocket 108. At this time, the climbing chain 105 will rotate counterclockwise. When the climbing chain 105 rotates counterclockwise, the climbing contact plate 106 installed on its outer surface will move along the path of the climbing chain 105.

[0026] Specific usage process: When the detachable exhibition booth assembly robotic arm 103 needs to be used, first manually install the steel frame 102 on the ground by hand at this time, and fix the steel frame 102 to the ground with bolts to build the outer frame of the exhibition booth. When the outer frame of the exhibition booth is built and the robotic arm 103 needs to be further installed, lift the surrounding frame 1 at this time, and align its interior with the steel frame 102. Push the surrounding frame 1 so that the surrounding frame 1 wraps the steel frame 102. When the wrapping is completed, pick up the docking plate 2 at this time, and place it on one side surface of the surrounding frame 1, and align the docking plate 2 with the docking groove 201 provided on one side surface of the surrounding frame 1. When the alignment is completed, push the docking plate 2 so that one side surface of the docking plate 2 is inserted into the inner wall of the docking groove 201, so that the docking plate 2 is spliced with the surrounding frame 1. When the two are spliced, insert the reinforcement bolt 203 into the inner wall of the screw hole 202, and rotate it so that the reinforcement bolt 203 rotates in the inner wall of the screw hole 202. By continuously rotating the reinforcement bolt 203, the reinforcement bolt 203 is finally inserted into the interior of the surrounding frame 1, so that the docking plate 2 and the surrounding frame 1 are fixedly installed with each other through the reinforcement bolt 203. And observe the contact situation between the contact rubber wheels 303 and the outer surface of the steel frame 102 when the fixing bolt rotates. When all the contact rubber wheels 303 are in contact with the outer surface of the steel frame 102, rotate the reinforcement bolt 203 again at this time. The secondary rotation and tightening of the reinforcement bolt 203 forces the contact rubber wheels 303 to pre-press the surface of the steel frame 102, so that the contact rubber wheels 303 can fully contact the outer surface of the steel frame 102, preventing the robotic arm 103 from shaking due to looseness during lifting.

[0027] When the robotic arm 103 needs to climb to a certain height for operation after installation, the drive motor 403 is started at this time. The output end of the drive motor 403 is connected to the output end of the small reducer 4. Therefore, when the drive motor 403 is started, the transmission shaft 401 installed at the output end of the small reducer 4 will rotate on the inner wall of the surrounding frame 1. A second helical gear 402 is installed on the outer surface of the transmission shaft 401, and the second helical gear 402 will rotate together with the transmission shaft 401. The second helical gear 402 meshes with the first helical gear 110. Therefore, when the second helical gear 402 rotates, it will drive the driven rod 109 to rotate on the inner wall of the surrounding frame 1 through the first helical gear 110. A first sprocket 104 is fixedly installed on the outer surface of the driven rod 109. At this time, the first sprocket 104 will rotate with the driven rod 109. A climbing chain 105 meshes with the outer surfaces of the first sprocket 104 and the second sprocket 108. At this time, the climbing chain 105 will rotate counterclockwise. When the climbing chain 105 rotates counterclockwise, the climbing contact plate 106 installed on its outer surface will move along the path of the climbing chain 105. As the climbing chain 105 rotates continuously, at this time, the climbing contact plate 106 will contact the reinforcing steel frame 102 arranged inside the steel frame 102. Because the drive motor 403 is still in the starting state at this time, when the climbing contact plate 106 contacts the reinforcing steel frame 102, the entire device and the robotic arm 103 will climb along the surface of the steel frame 102 due to the torque. At this time, the contact rubber wheel 303 will rotate on the outer surface of the steel frame 102 as the whole device moves, realizing the overall climbing of the device, so as to facilitate the displacement climbing of the robotic arm 103 and better perform high-altitude operations.

[0028] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A robotic arm for assembling a detachable exhibition stand, comprising an enclosing frame (1) and a positioning plate (101), the positioning plate (101) being fixedly installed at the bottom end of the inner wall of the enclosing frame (1), characterized in that: Inside the surrounding frame (1), a steel frame (102) is installed. On one side surface of the surrounding frame (1), a robotic arm (103) is fixedly installed. Inside the inner wall of the positioning plate (101), a first sprocket (104) is rotatably installed. On the outer surface of the first sprocket (104), a climbing chain (105) is engaged. On one side surface of the climbing chain (105), a climbing contact plate (106) is fixedly installed. Inside the inner wall of the climbing contact plate (106), an anti-slip rubber (107) is fixedly installed. Inside the inner wall of the climbing chain (105), a second sprocket (108) is engaged. Inside the inner wall of the second sprocket (108), a driven rod (109) is fixedly installed. On the outer surface of the driven rod (109), a first helical gear (110) is fixedly installed. On one side surface of the surrounding frame (1), a disassembly component is installed. On one side surface of the surrounding frame (1), a climbing mechanism is installed; The disassembly component includes a docking plate (2). The docking plate (2) is installed on one side surface of the surrounding frame (1). On one side surface of the surrounding frame (1), a docking groove (201) is opened. On one side surface of the docking plate (2), a spiral hole (202) is opened. Inside the inner wall of the spiral hole (202), a reinforcing bolt (203) is threadedly connected.

2. The robotic arm for assembling the detachable exhibition stand according to claim 1, wherein There are two positioning plates (101) evenly distributed on the bottom surface of the inner wall of the surrounding frame (1). Inside the inner wall of each positioning plate (101), a first sprocket (104) is correspondingly distributed. On the outer surface of each first sprocket (104), a climbing chain (105) is correspondingly distributed. There are several climbing contact plates (106) distributed in a circular array on one side surface of the climbing chain (105). Inside the inner wall of each climbing contact plate (106), an anti-slip rubber (107) is correspondingly distributed.

3. The robotic arm for assembling a detachable exhibition stand according to claim 1, characterized in that, The climbing contact plate (106) and the anti-slip rubber (107) are in movable contact with the steel frame (102). Inside the inner wall of each climbing chain (105), a second sprocket (108) is correspondingly engaged. Inside the inner wall of each second sprocket (108), a driven rod (109) and a first helical gear (110) are correspondingly distributed. The driven rod (109) is rotatably and movably connected to the inner wall of the surrounding frame (1).

4. The robotic arm for assembling the detachable exhibition stand according to claim 1, wherein, There are four docking grooves (201) linearly arrayed on one side surface of the surrounding frame (1). One side surface of the docking plate (2) is in movable contact with one side surface of the surrounding frame (1). There are four spiral holes (202) linearly arrayed on one side surface of the docking plate (2). Inside the inner wall of each spiral hole (202), a reinforcing bolt (203) is rotatably installed. The reinforcing bolt (203) is rotatably and threadedly connected to the inner wall of the docking groove (201).

5. The robotic arm for assembling a detachable exhibition stand according to claim 1, characterized in that, The climbing mechanism includes a sliding component and a driving component. The sliding component includes a rotating groove (3), and the rotating groove (3) is formed on one side surface of the inner wall of the surrounding frame (1) and the docking plate (2). A damping bearing (301) is fixedly installed on the outer sides of the surrounding frame (1) and the docking plate (2). A rotating rod (302) is installed on the inner wall of the damping bearing (301). A contact rubber wheel (303) is fixedly installed on the outer surface of the rotating rod (302).

6. The robotic arm for assembling the detachable exhibition stand according to claim 5, characterized in that, The rotating grooves (3) are several and are distributed in an annular array on the inner walls of the surrounding frame (1) and the docking plate (2). A rotating rod (302) is correspondingly distributed on the inner wall of each rotating groove (3). Two contact rubber wheels (303) are correspondingly distributed on the outer surface of each rotating rod (302). Two damping bearings (301) are correspondingly distributed on the outer surface of each rotating rod (302). The contact rubber wheel (303) is in rolling contact with the outer surface of the steel frame (102).

7. The robotic arm for assembling the detachable exhibition stand according to claim 5, characterized in that, The driving component is a small reducer (4). The small reducer (4) is fixedly installed on one side surface of the surrounding frame (1). A transmission shaft (401) is installed at the output end of the small reducer (4). A second helical gear (402) is fixedly installed on the outer surface of the transmission shaft (401). A driving motor (403) is installed at the output end of the small reducer (4).

8. The robotic arm for assembling the detachable exhibition stand according to claim 7, characterized in that, The transmission shaft (401) extends from the outside of the surrounding frame (1) to its inside. Two second helical gears (402) are equidistantly distributed on the outer surface of the transmission shaft (401). The second helical gear (402) meshes with the first helical gear (110). The transmission shaft (401) is rotatably and movably connected to the surrounding frame (1).

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