Rapid clamping and automatic welding handrail device

Abstract

The utility model provides a quick clamping automatic welding handrail device, relates to handrail processing technical field, include: bottom plate, round handrail tube and connecting piece, the top surface of bottom plate is equipped with control terminal, the one side of bottom plate top surface is fixedly equipped with vertical plate, one side surface of vertical plate passes through the bearing and is connected with the rotating column, and the rotating column passes through the bearing and is connected with the connecting piece. An electric telescopic rod is fixedly installed on the surface of the top of the movable block, a welding device body is fixedly installed at the output end of the electric telescopic rod, a fixing assembly is arranged on the surface of the rotating column, and a rotating assembly is arranged on the surface of the other side of the rotating column. According to the welding device, a circular handrail pipe can be rapidly and firmly clamped and fixed, meanwhile, a connecting piece can be fixed, it is ensured that the circular handrail pipe and the connecting piece can be stably welded, and the welding qualification rate of the welding device is increased; and the circular handrail pipe and the connecting piece can rotate synchronously, so that the circular handrail pipe and the connecting piece can be welded and assembled, and the welding difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of handrail processing, in particular to a rapid clamping and automatic welding handrail device. Background Art

[0002] A handrail is a component for people to hold on to, located at the upper end of a railing or parapet and on the side wall of a stairway. A stair handrail is a handrail built on a stair to ensure structural stability and use safety. The stair handrail is often supported by vertical railings. It can be connected to either side of a column at one end of the stair or to an intermediate column continuous with the wall. The handrail includes a handrail main body and a handrail pipe supporting the handrail main body. During installation, the handrail main body is locked to a handrail connecting piece on the handrail pipe by screws. The handrail connecting piece is usually fixed to the head end of the handrail pipe by welding.

[0003] However, in the prior art, during handrail production, assembly is required through welding and connecting pieces. Handrails come in round tubes and plate shapes. During the welding process of round handrail pipes, manual or positioning devices are needed to position the round handrail pipes. Most existing handrail welding devices are fixed manually. Manual fixing has many uncertain factors, and the round handrail pipes are prone to tilting and misalignment during or after welding, resulting in a low qualified rate of finished products.

[0004] Therefore, a rapid clamping and automatic welding handrail device is proposed to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A rapid clamping and automatic welding handrail device, comprising: a bottom plate, a round handrail pipe and a connecting piece. A control terminal is provided on the top surface of the bottom plate. A vertical plate is fixedly installed on one side of the top surface of the bottom plate. A rotating column is connected through a bearing on one side surface of the vertical plate. An electric lifting rod is fixedly installed at the center of the top surface of the bottom plate. A support plate is fixedly installed at the output end of the electric lifting rod. A transverse groove is provided on the other side of the top surface of the bottom plate. A threaded rod is connected through bearings between the inner walls at both ends of the transverse groove. A first motor is fixedly installed on one side surface of the bottom plate. The output end of the first motor is fixedly connected to one end of the threaded rod. A movable block is threadedly connected to the surface of the threaded rod. An electric telescopic rod is fixedly installed on one side of the top surface of the movable block. A welding device body is fixedly installed at the output end of the electric telescopic rod. A baffle is fixedly installed on the other side of the top surface of the movable block. A cylinder is connected through a bearing on one side surface of the baffle. A fixing component is provided on one side surface of the rotating column, and a rotating component is provided on the other side surface of the rotating column. The fixing component includes a U-shaped plate, and the U-shaped plate is fixedly installed on one side surface of the rotating column.

[0007] As a preferred embodiment, a T-shaped groove is formed on the inner wall surface of one side of the U-shaped plate. Two sliding plates are slidably connected inside the T-shaped groove. Convex blocks adapted to the T-shaped groove are provided on the surface of one end of each of the two sliding plates. Two clamping plates are fixedly installed on the side surface of each of the two sliding plates. A plurality of anti-slip strips are fixedly installed on the inner wall surface of one side of each of the plurality of clamping plates. The circular handrail tube is movably clamped between the plurality of clamping plates.

[0008] As a preferred embodiment, U-shaped handles are fixedly installed on the other side surface of each of the two sliding plates. One end of each of the two U-shaped handles away from the two sliding plates movably penetrates through the inner wall surfaces on both sides of the U-shaped plate. Two springs are fixedly installed between the inner wall surfaces on both sides of the U-shaped plate and the other side surface of each of the two sliding plates. One end of each of the two U-shaped handles is located inside the plurality of springs.

[0009] As a preferred embodiment, a disc is fixedly installed on the side surface of the cylinder. A groove is formed on the side surface of the disc. The connecting piece is movably installed inside the groove. Two extension plates are fixedly installed on the outer wall surface of the disc. Fixed plates are movably installed on the side surface of each of the two extension plates. The two fixed plates and the two extension plates are connected by bolts.

[0010] As a preferred embodiment, the rotating assembly includes a large bevel gear fixedly sleeved on the surface of the rotating column. A support plate is fixedly installed on the side surface of the vertical plate. A second motor is fixedly installed on the side surface of the support plate. The output end of the second motor movably penetrates through the support plate and is fixedly installed with a small bevel gear. The small bevel gear and the large bevel gear mesh with each other.

[0011] As a preferred embodiment, a toothed ring is fixedly sleeved on the surface of the cylinder. An L-shaped plate is fixedly installed on the side surface of the baffle. A rotating rod is rotatably connected between the inner wall surface of one side of the L-shaped plate and the side surface of the baffle. A third motor is fixedly installed on the side surface of the L-shaped plate. The output end of the third motor movably penetrates through the L-shaped plate and is fixedly connected to one end of the rotating rod.

[0012] As a preferred embodiment, a gear is fixedly sleeved on the surface of the rotating rod. The gear and the toothed ring mesh with each other.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0014] 1. In the present utility model, when welding the circular handrail pipe and the connecting piece, when it is necessary to fix the circular handrail pipe and the connecting piece, first pull the two U-shaped handles. The movement of the two U-shaped handles drives the two sliding plates to move inside the T-shaped groove. The movement of the two sliding plates inside the T-shaped groove drives the movement of multiple clamping plates. At the same time, the movement of the two sliding plates also compresses multiple springs, so that the multiple springs are compressed under force. When the distance between the multiple clamping plates is greater than the diameter of the circular handrail pipe, at this time, place the circular handrail pipe between the multiple clamping plates and release the handrail. The resilience of the multiple springs causes the multiple clamping plates to reset. The reset of the multiple clamping plates firmly clamps and fixes the circular handrail pipe. Subsequently, operate the electric lifting rod through the control terminal. The operation of the electric lifting rod drives the movement of the support plate. When the support plate can hold the circular handrail pipe, at this time, operate the electric lifting rod simultaneously to firmly clamp and fix the circular handrail pipe. Subsequently, unscrew the two bolts. The unscrewing of the two bolts causes the two fixing plates to disengage from the two extension plates. At this time, install the connecting piece inside the groove. Subsequently, reset the two fixing plates and screw the two bolts back into the two extension plates again, so that the connecting piece is firmly restricted inside the groove. At this time, operate the first motor through the control terminal. The operation of the first motor drives the rotation of the threaded rod. The rotation of the threaded rod drives the movement of the movable block. The movement of the movable block drives the movement of the baffle plate. The movement of the baffle plate drives the movement of the disc. The movement of the disc drives the movement of the connecting piece. When the connecting piece contacts the circular handrail pipe, at this time, stop operating the first motor and operate the electric telescopic rod. The electric telescopic rod drives the movement of the welding device body. When the welding device body reaches the appropriate position, the welding treatment can be carried out between the circular handrail pipe and the connecting piece. Through the cooperation of the above structures, not only can the circular handrail pipe be quickly and firmly clamped and fixed, but also the connecting piece can be fixed, ensuring that the circular handrail pipe and the connecting piece can be stably welded, and improving the welding qualification rate of the device.

[0015] 2. In the present utility model, when the welding angle needs to be adjusted, first fix the circular handrail pipe and the connecting piece through the fixing component, and then operate the second motor and the third motor through the control terminal. The operation of the second motor drives the small bevel gear to rotate. The small bevel gear meshes with the large bevel gear, so that the large bevel gear rotates. The rotation of the large bevel gear drives the rotating column to rotate. The rotation of the rotating column drives the U-shaped plate to rotate. The rotation of the U-shaped plate drives the circular handrail pipe to rotate. At the same time, the operation of the third motor drives the rotating rod to rotate. The rotation of the rotating rod drives the gear to rotate. The gear meshes with the toothed ring, so that the cylinder rotates. The rotation of the cylinder drives the disc to rotate. The rotation of the disc drives the connecting piece to rotate. Since the cooperation between the large bevel gear and the small bevel gear and the cooperation between the gear and the toothed ring have the same rotation speed, the circular handrail pipe and the connecting piece rotate synchronously. Then, welding treatment can be carried out on the circular handrail pipe and the connecting piece at multiple angles. Through the cooperation of the above structures, the circular handrail pipe and the connecting piece can rotate synchronously, so as to carry out welding assembly on the circular handrail pipe and the connecting piece, without manual flipping, reducing the welding difficulty. Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of a fast-clamping automatic welding handrail device provided by the present utility model;

[0017] Figure 2 A fast-clamping automatic welding handrail device provided by the present utility model Figure 1 is a split structural schematic diagram;

[0018] Figure 3 is another-angle structural schematic diagram of a fast-clamping automatic welding handrail device provided by the present utility model;

[0019] Figure 4 is a structural schematic diagram of the fixing component of a fast-clamping automatic welding handrail device provided by the present utility model;

[0020] Figure 5 is a structural schematic diagram of the baffle of a fast-clamping automatic welding handrail device provided by the present utility model;

[0021] Figure 6 A fast-clamping automatic welding handrail device provided by the present utility model Figure 3 is a structural schematic diagram of A in it.

[0022] Legend Explanation:

[0023] 1. Bottom plate; 2. Control terminal; 3. Vertical plate; 4. Rotating column; 5. Horizontal groove; 501. Threaded rod; 502. First motor; 503. Movable block; 504. Baffle; 505. Cylinder; 6. Electric lifting rod; 601. Support plate; 7. Electric telescopic rod; 701. Welding device body; 8. Fixing component; 801. U-shaped plate; 802. T-shaped groove; 803. Slide plate; 804. Clamping plate; 805. Anti-slip strip; 806. U-shaped handle; 807. Spring; 808. Disc; 809. Groove; 810. Extension plate; 811. Fixed plate; 812. Bolt; 9. Rotating component; 901. Large bevel gear; 902. Support plate; 903. Second motor; 904. Small bevel gear; 905. Tooth ring; 906. L-shaped plate; 907. Rotating rod; 908. Third motor; 909. Gear; 10. Circular handrail tube; 11. Connecting piece. Detailed implementation manner

[0024] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-6 , the present invention provides a technical solution: a fast clamping and automatic welding handrail device, including: a bottom plate 1, a circular handrail tube 10 and a connecting piece 11. A control terminal 2 is provided on the top surface of the bottom plate 1. One side of the top surface of the bottom plate 1 is fixedly installed with a vertical plate 3. One side surface of the vertical plate 3 is connected through a bearing to a rotating column 4. The center of the top surface of the bottom plate 1 is fixedly installed with an electric lifting rod 6. The output end of the electric lifting rod 6 is fixedly installed with a support plate 601. A horizontal groove 5 is opened on the other side of the top surface of the bottom plate 1. The inner walls at both ends of the horizontal groove 5 are connected through a bearing to a threaded rod 501. One side surface of the bottom plate 1 is fixedly installed with a first motor 502. The output end of the first motor 502 is fixedly connected to one end of the threaded rod 501. The surface of the threaded rod 501 is threadedly connected to a movable block 503. One side of the top surface of the movable block 503 is fixedly installed with an electric telescopic rod 7. The output end of the electric telescopic rod 7 is fixedly installed with a welding device body 701. The other side of the top surface of the movable block 503 is fixedly installed with a baffle 504. One side surface of the baffle 504 is connected through a bearing to a cylinder 505. A fixing component 8 is provided on one side surface of the rotating column 4, and a rotating component 9 is provided on the other side surface of the rotating column 4. The fixing component 8 includes a U-shaped plate 801. The U-shaped plate 801 is fixedly installed on one side surface of the rotating column 4. The first motor 502, the second motor 903 and the third motor 908 are all forward and reverse motors.

[0026] Specifically, the control terminal 2 functions to control the electric lifting rod 6, the electric telescopic rod 7, the welding device body 701, the first motor 502, the second motor 903, and the third motor 908. The welding device body 701 is a prior art and can be a device with welding functions such as an electric welding machine or a welding machine. The specific structure will not be elaborated here again. The electric lifting rod 6 functions to control the lifting of the pallet 601. The threaded rod 501 functions to drive the movable block 503 to move inside the transverse groove 5. The electric telescopic rod 7 functions to drive the lifting of the welding device body 701.

[0027] In one embodiment, a T-shaped groove 802 is formed on the inner wall surface of one side of the U-shaped plate 801. Two sliding plates 803 are slidably connected inside the T-shaped groove 802. Convex blocks adapted to the T-shaped groove 802 are provided on the surface of one end of each of the two sliding plates 803. Two clamping plates 804 are fixedly installed on the surface of one side of each of the two sliding plates 803. A plurality of anti-slip strips 805 are fixedly installed on the inner wall surface of one side of the plurality of clamping plates 804. The circular handrail tube 10 is movably clamped between the plurality of clamping plates 804.

[0028] Specifically, a convex plate adapted to the T-shaped groove 802 is provided on the surface of one side of the sliding plate 803 to prevent the sliding plate 803 from detaching from the T-shaped groove 802. The clamping plate 804 functions to clamp and fix the circular handrail tube 10. The anti-slip strip 805 functions to prevent the circular handrail tube 10 from sliding.

[0029] In one embodiment, U-shaped handles 806 are fixedly installed on the surface of the other side of each of the two sliding plates 803. One end of each of the two U-shaped handles 806 far from the two sliding plates 803 movably penetrates through the inner wall surfaces of both sides of the U-shaped plate 801. Two springs 807 are fixedly installed between the inner wall surfaces of both sides of the U-shaped plate 801 and the surface of the other side of each of the two sliding plates 803. One end of each of the two U-shaped handles 806 is located inside the plurality of springs 807.

[0030] Specifically, the handle functions to drive the sliding plate 803 to move inside the T-shaped groove 802. The spring 807 functions to limit the position of the sliding plate 803 inside the T-shaped groove 802.

[0031] In one embodiment, a disc 808 is fixedly installed on the surface of one side of the cylinder 505. A groove 809 is formed on the surface of one side of the disc 808. The connecting piece 11 is movably installed inside the groove 809. Two extension plates 810 are fixedly installed on the outer wall surface of the disc 808. Fixing plates 811 are movably installed on the surface of one side of each of the two extension plates 810. The two fixing plates 811 and the two extension plates 810 are connected by bolts 812.

[0032] Specifically, the groove 809 functions to install the connecting piece 11, the fixing plate 811 functions to prevent the connecting piece 11 from disengaging from the groove 809, the screw serves to fix the fixing plate 811, and threaded holes adapted to the bolts 812 are provided on the surfaces of the two fixing plates 811 and the two extension plates 810.

[0033] In one embodiment, the rotating assembly 9 includes a large bevel gear 901 fixedly sleeved on the surface of the rotating column 4. A support plate 902 is fixedly installed on one side surface of the vertical plate 3. A second motor 903 is fixedly installed on one side surface of the support plate 902. The output end of the second motor 903 movably penetrates through the support plate 902 and is fixedly installed with a small bevel gear 904, and the small bevel gear 904 meshes with the large bevel gear 901.

[0034] Specifically, the small bevel gear 904 functions to drive the large bevel gear 901 to rotate, and the second motor 903 functions to drive the small bevel gear 904 to rotate.

[0035] In one embodiment, a toothed ring 905 is fixedly sleeved on the surface of the cylinder 505. An L-shaped plate 906 is fixedly installed on one side surface of the baffle 504. A rotating rod 907 is rotatably connected between the inner wall surface of one side of the L-shaped plate 906 and the one side surface of the baffle 504. A third motor 908 is fixedly installed on one side surface of the L-shaped plate 906. The output end of the third motor 908 movably penetrates through the L-shaped plate 906 and is fixedly connected to one end of the rotating rod 907.

[0036] Specifically, the third motor 908 functions to drive the rotating rod 907 to rotate.

[0037] In one embodiment, a gear 909 is fixedly sleeved on the surface of the rotating rod 907, and the gear 909 meshes with the toothed ring 905.

[0038] Specifically, the gear 909 functions to drive the toothed ring 905 to rotate.

[0039] Working principle: When welding the circular handrail pipe 10 and the connecting piece 11, when it is necessary to fix the circular handrail pipe 10 and the connecting piece 11, first pull the two U-shaped handles 806. The movement of the two U-shaped handles 806 drives the two sliding plates 803 to move inside the T-shaped groove 802. The movement of the two sliding plates 803 inside the T-shaped groove 802 drives the movement of multiple clamping plates 804. At the same time, the movement of the two sliding plates 803 also squeezes multiple springs 807, so that the multiple springs 807 are compressed under force. When the distance between the multiple clamping plates 804 is greater than the diameter of the circular handrail pipe 10, place the circular handrail pipe 10 between the multiple clamping plates 804 and then release the handrail. The resilience of the multiple springs 807 causes the multiple clamping plates 804 to reset, and the reset of the multiple clamping plates 804 firmly clamps and fixes the circular handrail pipe 10. Subsequently, operate the electric lifting rod 6 through the control terminal 2. The operation of the electric lifting rod 6 drives the movement of the support plate 601. When the support plate 601 can support the circular handrail pipe 10, operate the electric lifting rod 6 at the same time, so as to firmly clamp and fix the circular handrail pipe 10. Then unscrew the two bolts 812. The unscrewing of the two bolts 812 causes the two fixing plates 811 to disengage from the two extension plates 810. At this time, install the connecting piece 11 inside the groove 809, then reset the two fixing plates 811 and screw the two bolts 812 back into the two extension plates 810, so that the connecting piece 11 is firmly restricted inside the groove 809. At this time, operate the first motor 502 through the control terminal 2. The operation of the first motor 502 drives the rotation of the threaded rod 501. The rotation of the threaded rod 501 drives the movement of the movable block 503. The movement of the movable block 503 drives the movement of the baffle 504. The movement of the baffle 504 drives the movement of the disc 808. The movement of the disc 808 drives the movement of the connecting piece 11. When the connecting piece 11 contacts the circular handrail pipe 10, stop the operation of the first motor 502 and operate the electric telescopic rod 7. The electric telescopic rod 7 drives the movement of the welding device body 701. When the welding device body 701 reaches the appropriate position, the welding treatment can be carried out between the circular handrail pipe 10 and the connecting piece 11. Through the cooperation of the above structures, not only can the circular handrail pipe 10 be quickly and firmly clamped and fixed, but also the connecting piece 11 can be fixed, ensuring that the circular handrail pipe 10 and the connecting piece 11 can be welded stably, and improving the welding qualification rate of the device;When the welding angle needs to be adjusted, first fix the circular handrail pipe 10 and the connecting piece 11 through the fixing component 8. Subsequently, operate the second motor 903 and the third motor 908 through the control terminal 2. The operation of the second motor 903 drives the small bevel gear 909904 to rotate. The small bevel gear 909904 meshes with the large bevel gear 909901, so that the large bevel gear 909901 rotates. The rotation of the large bevel gear 909901 drives the rotating column 4 to rotate. The rotation of the rotating column 4 drives the U-shaped plate 801 to rotate. The rotation of the U-shaped plate 801 drives the circular handrail pipe 10 to rotate. At the same time, the operation of the third motor 908 drives the rotating rod 907 to rotate. The rotation of the rotating rod 907 drives the gear 909 to rotate. The gear 909 meshes with the toothed ring 905, so that the cylinder 505 rotates. The rotation of the cylinder 505 drives the disc 808 to rotate. The rotation of the disc 808 drives the connecting piece 11 to rotate. Since the cooperation between the large bevel gear 909901 and the small bevel gear and the cooperation between the gear 909 and the toothed ring 905 have the same rotation speed, the circular handrail pipe 10 and the connecting piece 11 rotate synchronously. Subsequently, welding treatment can be carried out on the circular handrail pipe 10 and the connecting piece 11 at multiple angles. Through the cooperation of the above structures, the circular handrail pipe 10 and the connecting piece 11 can rotate synchronously, so as to carry out welding assembly on the circular handrail pipe 10 and the connecting piece 11, without manual flipping, reducing the welding difficulty.

[0040] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A quick clamping automatic welding handrail device, characterized in that: include: A base plate (1), a circular handrail tube (10) and a connecting plate (11); a control terminal (2) is provided on the top surface of the base plate (1); a vertical plate (3) is fixedly installed on one side of the top surface of the base plate (1); a rotating column (4) is connected to the vertical plate (3) through a bearing; an electric lifting rod (6) is fixedly installed at the center of the top surface of the base plate (1); a support plate (601) is fixedly installed at the output end of the electric lifting rod (6); a transverse groove (5) is provided on the other side of the top surface of the base plate (1); a threaded rod (501) is connected between the inner walls of both ends of the transverse groove (5) through a bearing; a first motor (502) is fixedly installed on one side of the base plate (1); the output end of the first motor (502) and the threaded rod (501) are connected to each other. 01), a movable block (503) is threadedly connected to the surface of the threaded rod (501), an electric telescopic rod (7) is fixedly installed on one side of the top surface of the movable block (503), and a welding device body (701) is fixedly installed on the output end of the electric telescopic rod (7), a baffle (504) is fixedly installed on the other side of the top surface of the movable block (503), and a cylinder (505) is connected to the surface of one side of the baffle (504) through a bearing, a fixed component (8) is provided on one side surface of the rotating column (4), and a rotating component (9) is provided on the other side surface of the rotating column (4), and the fixed component (8) includes a U-shaped plate (801), and the U-shaped plate (801) is fixedly installed on the surface of one side of the rotating column (4).

2. According to claim 1, a quick clamping automatic welding handrail device is characterized in that: A T-shaped slot (802) is provided on the inner wall surface of one side of the U-shaped plate (801); two slide plates (803) are slidably connected inside the T-shaped slot (802); one end surface of the two slide plates (803) are provided with a protrusion adapted to the T-shaped slot (802); two clamping plates (804) are fixedly installed on the one side surface of the two slide plates (803); a plurality of anti-slip strips (805) are fixedly installed on the inner wall surface of one side of the plurality of clamping plates (804); and the circular handrail tube (10) is movably clamped between the plurality of clamping plates (804).

3. The quick clamping automatic welding handrail device according to claim 2 is characterized in that: A U-shaped handle (806) is fixedly installed on the other side surface of the two slides (803), and one end of the two U-shaped handles (806) away from the two slides (803) is movable through the inner wall surfaces on both sides of the U-shaped plate (801), and two springs (807) are fixedly installed between the inner wall surfaces on both sides of the U-shaped plate (801) and the other side surfaces of the two slides (803), and one end of the two U-shaped handles (806) is located on the inner side of the multiple springs (807).

4. The quick clamping automatic welding handrail device according to claim 1 is characterized in that: A disc (808) is fixedly mounted on one side surface of the cylinder (505), a groove (809) is provided on one side surface of the disc (808), the connecting piece (11) is movably mounted inside the groove (809), two extension plates (810) are fixedly mounted on the outer wall surface of the disc (808), a fixing plate (811) is movably mounted on one side surface of the two extension plates (810), and the two fixing plates (811) and the two extension plates (810) are connected by bolts (812).

5. The quick clamping automatic welding handrail device according to claim 1 is characterized in that: The rotating assembly (9) comprises a large bevel gear (901), the large bevel gear (901) is fixedly sleeved on the surface of the rotating column (4), a support plate (902) is fixedly mounted on one side surface of the vertical plate (3), a second motor (903) is fixedly mounted on one side surface of the support plate (902), an output end of the second motor (903) movably passes through the support plate (902) and is fixedly mounted with a small bevel gear (904), and the small bevel gear (904) and the large bevel gear (901) are meshed with each other.

6. The quick clamping automatic welding handrail device according to claim 1 is characterized in that: A gear ring (905) is fixedly sleeved on the surface of the cylinder (505); an L-shaped plate (906) is fixedly mounted on one side surface of the baffle (504); a rotating rod (907) is rotatably connected between an inner wall surface of one side of the L-shaped plate (906) and a surface of one side of the baffle (504); a third motor (908) is fixedly mounted on one side surface of the L-shaped plate (906); an output end of the third motor (908) movably passes through the L-shaped plate (906) and is fixedly connected to one end of the rotating rod (907).

7. The quick clamping automatic welding handrail device according to claim 6 is characterized in that: A gear (909) is fixedly sleeved on the surface of the rotating rod (907), and the gear (909) and the gear ring (905) are meshed with each other.

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