Automatic municipal steel structure welding device and welding process thereof

Abstract

The invention discloses an automatic municipal steel structure welding device and a welding process thereof, and belongs to the field of steel structure welding. Comprising a movable driving mechanism, and a welding mechanism is arranged behind the upper surface of the movable driving mechanism; the moving driving mechanism comprises a concave base, the interior of the concave base is rotationally connected with a two-way screw rod through a rotating shaft, and a rack is fixedly connected to the position, located behind the two-way screw rod, of the interior of the concave base; in the process that the movable driving mechanism drives the movable mounting mechanism to move, the two circular workpieces put on the two clamping mechanisms can be clamped while being close to each other to shorten the butt joint distance, the problem that in the prior art, after the workpieces need to be independently controlled to be clamped, the workpieces are controlled to move is solved, and the working efficiency is improved. The automatic clamping effect is achieved in the process that the workpieces get close to each other, the distance needing to be adjusted during follow-up butt joint is shortened, and follow-up butt joint work is facilitated.

Description

Technical Field

[0001] The invention relates to the field of steel structure welding, and in particular to an automated municipal steel structure welding device and a welding process thereof. Background Art

[0002] Steel structure refers to the use of various steel, steel plates, steel pipes and other materials, which are processed and prefabricated in the factory, and then assembled on site by bolt connection, welding and other methods to finally form a modern building structure system of building support structure. Technically speaking, steel structure has higher reliability and longer service life. From the perspective of environmental protection, steel structure buildings can reduce the consumption of mineral materials, thereby reducing the adverse impact on the environment. In addition, the characteristics of steel structure such as short construction period, high technological content, controllable quality, strong adaptability and resource conservation also make it one of the increasingly popular mainstream building structures in modern buildings. The movable semi-automatic steel structure needs to use welding equipment to connect the prefabricated steel during the construction process;

[0003] Patent: CN222344608U discloses a movable semi-automatic steel structure welding device, including a movable welding table, both sides of the upper end of the movable welding table are slidably installed with sliders, the upper end of the slider is installed with a lower pad, both sides of the upper end of the lower pad are rotatably clamped with lifting threaded rods, and the lifting threaded rods are threadedly installed with an upper pressing plate, and a fixed seat is fixedly installed at the middle position of the upper end of the movable welding table, and an annular rotating rail is fixedly installed on the upper end of the fixed seat, the annular rotating rail is located between the two sliders, and a rotating ring is rotatably clamped in the annular rotating rail, and a welding gun is installed on the inner side of the rotating ring. The movable semi-automatic steel structure welding device of the device can fix the steel through the lower pad and the upper pressing plate, and will not shake during welding, thereby improving the welding effect. At the same time, the welding gun moves under the drive of the rotating ring, so that the welding worker does not need to hold it for welding, thereby improving the safety during welding;

[0004] In the above technology, the control of the clamping of the workpiece and the control of the movement and docking of the workpiece after clamping are all manually controlled and need to be adjusted separately. The clamping and docking movement processes are complicated to operate and need to be controlled separately. It is not possible to achieve a short distance control of the movement and docking of the workpiece after moving and clamping the workpiece. In addition, when clamping a circular tubular steel structure workpiece, the above technology cannot effectively ensure stable clamping, and the problem of deviation of the clamped workpiece is prone to occur, which needs to be improved. For this reason, we propose an automated municipal steel structure welding device and its welding process. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a device that can move and clamp the workpiece at the same time, and then control the movement and docking of the workpiece over a short distance; another purpose of the present invention is to provide a device that can effectively ensure stable clamping for circular tubular steel structure workpieces, and is not prone to the problem of deviation of the clamped workpiece.

[0006] Technical solution: An automated municipal steel structure welding device comprises a mobile drive mechanism, and a welding mechanism is arranged behind the upper surface of the mobile drive mechanism;

[0007] The mobile driving mechanism comprises a concave base, the interior of the concave base is rotatably connected to a bidirectional screw via a rotating shaft, and the interior of the concave base is fixedly connected to a rack behind the bidirectional screw;

[0008] Two movable installation mechanisms are slidably installed on the outer side wall of the bidirectional screw and located on the inner side of the rack;

[0009] The mobile installation mechanism includes a mobile plate 1 and a mobile plate 2, wherein the mobile plate 1 is fixedly connected to a shaft seat at the rear of a side close to the mobile plate 2, and the inner side of the shaft seat is rotatably connected to a shaft column via a rotating shaft, and the bottom and top ends of the shaft column are respectively fixedly connected to a gear 1 and a bevel gear;

[0010] A clamping mechanism is arranged above the mobile installation mechanism;

[0011] The clamping mechanism includes a clamping ring, an outer wall of the clamping ring is rotatably connected to a nut via a rotating shaft, a stud is threadedly connected to the inner side of the nut, one end of the stud passes through the inner side of the clamping ring and is rotatably connected to a clamping block via a rotating shaft, an outer wall of the nut is fixedly connected to a second gear, a side of the clamping ring is rotatably connected to a circular ring via a rotating shaft, a tooth groove is provided on a side of the circular ring close to the second gear, and a bevel gear ring is fixedly connected to an end of the circular ring away from the tooth groove;

[0012] The bottom of the clamping ring is fixedly connected to the top of the second moving plate, the second gear is meshedly connected to the tooth groove, the first gear is meshedly connected to the rack, and the bevel gear is meshedly connected to the bevel gear ring.

[0013] Furthermore, a motor 1 is fixedly connected to the right side of the concave base, and the left end of the output shaft of the motor 1 is fixedly connected to the right end of the bidirectional screw.

[0014] Furthermore, the welding mechanism includes an L-shaped bracket, the upper surface of the L-shaped bracket is fixedly connected to an electric push rod, the bottom end of the output end of the electric push rod is located on the inner side of the L-shaped bracket and is fixedly connected to a welding gun, and the bottom of the L-shaped bracket is fixedly connected to the upper surface of the concave base.

[0015] Furthermore, a plurality of springs are fixedly connected between the movable plate 1 and the movable plate 2, the movable plate 1 is threadedly connected to the bidirectional screw, and the movable plate 2 is slidably connected to the bidirectional screw.

[0016] Furthermore, a through-type through groove is provided at the inner rear of the movable plate 1 and the inner rear of the movable plate 2 and located on the outer side of the rack.

[0017] The cam is connected to the movable plate by a toothed structure, and the movable plate is connected to the movable plate by a toothed structure.

[0018] Furthermore, two limiting rods are fixedly connected to the outer side wall of the clamping block, and one end of the limiting rod away from the clamping block penetrates to the outer side of the clamping ring and is slidably connected to the clamping ring.

[0019] Furthermore, the side of the clamping ring away from the welding mechanism is fixedly connected to an L-shaped mounting frame, the inner side of the L-shaped mounting frame is rotatably connected to an abutment plate via a rotating shaft, the abutment plate is fixedly connected to a rubber pad on the side close to the clamping ring, a roller is embedded on the inner side of the clamping block, and the right side of the L-shaped mounting frame located on the right side of the welding mechanism is fixedly connected to motor 2, and the left end of the output shaft of motor 2 is fixedly connected to the right side center of the abutment plate located on the right side of the welding mechanism.

[0020] Furthermore, a U-shaped frame is fixedly connected to the front of the upper surface of the concave base, and an electric push rod 2 is fixedly connected to the upper surface of the U-shaped frame. The bottom end of the output end of the electric push rod 2 is located on the inner side of the U-shaped frame and is fixedly connected to a lower pressure strip, and the bottom of the lower pressure strip is in contact with the upper surface of the L-shaped pressure rod.

[0021] According to another aspect of the present invention, an automated municipal steel structure welding process is provided, comprising the following steps: S1, when the device is used, firstly inserting the round pipes to be butt-welded into the inner sides of two clamping mechanisms respectively;

[0022] S2, then controlling the mobile driving mechanism to make the two clamping mechanisms move relative to each other;

[0023] S3. When the mobile drive mechanism is in use, the motor 1 controls the rotation of the bidirectional screw to move the mobile installation mechanism; during the movement of the mobile installation mechanism, the gear 1 is driven and rotated by the rack, and then the ring rotates under the meshing transmission of the bevel gear and the bevel gear ring, and the nut of the gear 2 is driven to rotate through the tooth groove, so that under the limit of the limit rod, multiple studs will push the clamping block to move and clamp the circular steel workpiece, and at this time, the two workpieces will be clamped in the process of approaching each other;

[0024] S4. After the workpiece is clamped, start the electric push rod 2, and squeeze the L-shaped pressure rod through the lower pressure bar, so that the two movable plates 2 are pushed to move relative to each other under the connection and traction of the movable rod, thereby controlling the clamping mechanism to continue to move relative to each other, so that the opposite ends of the two workpieces can abut against each other, and finally adjust the position of the welding gun by controlling the extension or shortening of the electric push rod 1, and then start the welding gun and motor 2, so that the workpiece can be welded while rotating.

[0025] Beneficial effect: When the mobile driving mechanism drives the mobile installation mechanism to move, the two circular workpieces placed on the two clamping mechanisms can be clamped while approaching each other to shorten the docking distance, thus avoiding the problem of controlling the movement of the workpieces after clamping them separately in the prior art, so that the workpieces can be automatically clamped in the process of approaching each other, and the distance required to be adjusted during subsequent docking is shortened, which is convenient for subsequent docking work.

[0026] After the workpieces are butted, the opposite ends of the two workpieces will be abutted by the abutment plates respectively, and then by starting the second motor, the workpieces can be controlled to rotate, so that when the welding gun is started for welding, welding can be performed while rotating, making the welding more comprehensive and achieving the effect of automatic position adjustment welding;

[0027] When the workpiece is clamped by the clamping mechanism and moved closer, the electric push rod 2 is started to control the lower pressure bar to press down and squeeze the L-shaped pressure rod, so that the sliding block drops, and the movable plate 2 is squeezed away from the movable plate 1 through the movable rod, driving the clamping mechanism to continue to move relatively, so that the workpiece clamped by the clamping mechanism can move relatively over a short distance and dock. This method effectively saves the problem of a large moving distance for docking the workpiece after clamping the workpiece in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a bottom view structural schematic diagram of the mobile drive mechanism of the present invention;

[0030] Figure 3 is a side structural schematic diagram of the movable plate 1 of the present invention;

[0031] Figure 4 is a side structural schematic diagram of the movable plate 2 of the present invention;

[0032] Figure 5 It is a side structural schematic diagram of the welding mechanism of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the clamping mechanism of the present invention.

[0034] In the figure: 1, mobile drive mechanism; 2, welding mechanism; 3, mobile installation mechanism; 4, clamping mechanism; 5, U-shaped frame; 6, electric push rod 2; 7, lower pressure bar; 101, concave base; 102, bidirectional screw; 103, rack; 104, motor 1; 201, L-shaped bracket; 202, electric push rod 1; 203, welding gun; 301, mobile plate 1; 302, mobile plate 2; 303, spring; 304, through groove; 305, notch; 306, guide rod; 307, sliding block; 308 , fixed column; 309, movable rod; 310, rotating head; 311, L-shaped pressure rod; 312, shaft seat; 313, shaft column; 314, gear one; 315, bevel gear; 401, clamping ring; 402, nut; 403, stud; 404, clamping block; 405, limit rod; 406, gear two; 407, circular ring; 408, tooth groove; 409, bevel gear ring; 410, L-shaped mounting bracket; 411, abutment plate; 412, rubber pad; 413, roller; 414, motor two. DETAILED DESCRIPTION

[0035] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Example

[0037] like Figure 1 and Figure 2 As shown, an automated municipal steel structure welding device is provided, including a mobile drive mechanism 1, the mobile drive mechanism 1 includes a concave base 101, the interior of the concave base 101 is rotatably connected to a bidirectional screw 102 through a rotating shaft, and the interior of the concave base 101 is located behind the bidirectional screw 102 and is fixedly connected to a rack 103;

[0038] The right side of the concave base 101 is fixedly connected with a motor 104, and the left end of the output shaft of the motor 104 is fixedly connected to the right end of the bidirectional screw 102;

[0039] Two movable installation mechanisms 3 are slidably installed on the outer wall of the bidirectional screw 102 and located on the inner side of the rack 103;

[0040] When the device is in use, the motor 104 is controlled to start, so that the bidirectional screw 102 rotates, and then the two movable installation mechanisms 3 are controlled to move relative to or away from each other, so as to achieve the effect of controlling the workpieces to approach each other.

[0041] like Figure 3 As shown, a welding mechanism 2 is arranged behind the upper surface of the mobile driving mechanism 1;

[0042] The welding mechanism 2 includes an L-shaped bracket 201, the upper surface of the L-shaped bracket 201 is fixedly connected to an electric push rod 202, the bottom end of the output end of the electric push rod 202 is located inside the L-shaped bracket 201 and is fixedly connected to a welding gun 203, and the bottom of the L-shaped bracket 201 is fixedly connected to the upper surface of the concave base 101;

[0043] By controlling the height of the welding gun 203 through the electric push rod 202, the welding distance can be adjusted according to the pipes with different diameters, thereby facilitating welding for pipes with different diameters, with a wider application range and a simple adjustment method.

[0044] like Figure 4 and Figure 5 As shown, the mobile installation mechanism 3 includes a mobile plate 1 301 and a mobile plate 2 302. The mobile plate 1 301 is fixedly connected to a shaft seat 312 at the rear of one side close to the mobile plate 2 302. The inner side of the shaft seat 312 is rotatably connected to a shaft column 313 through a rotating shaft. The bottom and top ends of the shaft column 313 are respectively fixedly connected to a gear 1 314 and a bevel gear 315.

[0045] A plurality of springs 303 are fixedly connected between the moving plate 1 301 and the moving plate 2 302 . The moving plate 1 301 is threadedly connected to the bidirectional screw 102 , and the moving plate 2 302 is slidably connected to the bidirectional screw 102 .

[0046] A through slot 304 is provided at the inner rear of the first moving plate 301 and the inner rear of the second moving plate 302 and at the outer side of the rack 103;

[0047] A notch 305 is provided in front of one side of the movable plate 1 301 close to the movable plate 2 302, a guide rod 306 is fixedly connected to the inner side of the notch 305, a sliding block 307 is slidably connected to the outer wall of the guide rod 306, a fixed column 308 is fixedly connected to the front surface of the sliding block 307, a movable rod 309 is rotatably connected to the outer wall of the fixed column 308 via a rotating shaft, an end of the movable rod 309 away from the fixed column 308 is rotatably connected to a rotating head 310 via a rotating shaft, the rotating head 310 is fixedly connected to the opposite side of the movable plate 2 302, an L-shaped compression rod 311 is fixedly connected to the front end of the fixed column 308, the top of the L-shaped compression rod 311 passes through the upper side of the movable plate 1 301, and is slidably connected to the movable plate 1 301;

[0048] When the motor 104 starts to control the rotation of the bidirectional screw 102, the moving plate 1 301 can be driven to move along the outer wall of the bidirectional screw 102, thereby pushing the moving plate 2 302 to move, achieving the effect of driving the moving installation mechanism 3 to drive the clamping mechanism 4 to move, and by pressing down the L-shaped pressure rod 311, the sliding block 307 slides along the outer wall of the guide rod 306, and under the push of the movable rod 309, the moving plate 2 302 can be pushed away from the moving plate 1 301, so that after the moving plate 1 301 moves and the workpieces move closer to each other, the moving plate 2 302 moves, so as to facilitate the relative movement and docking of the two workpieces;

[0049] At the same time, during the movement of the moving plate 1 301 , the bevel gear 315 can be driven to rotate through the meshing transmission of the gear 1 314 and the rack 103 .

[0050] like Figure 6 As shown, a clamping mechanism 4 is provided above the mobile installation mechanism 3;

[0051] The clamping mechanism 4 includes a clamping ring 401, the outer wall of the clamping ring 401 is rotatably connected to a nut 402 via a rotating shaft, the inner side of the nut 402 is threadedly connected to a stud 403, one end of the stud 403 penetrates the inner side of the clamping ring 401, and is rotatably connected to a clamping block 404 via a rotating shaft, the outer wall of the nut 402 is fixedly connected to a second gear 406, one side of the clamping ring 401 is rotatably connected to a circular ring 407 via a rotating shaft, a tooth groove 408 is provided on a side of the circular ring 407 close to the second gear 406, and a bevel gear ring 409 is fixedly connected to one end of the circular ring 407 away from the tooth groove 408;

[0052] Two limiting rods 405 are fixedly connected to the outer wall of the clamping block 404. One end of the limiting rod 405 away from the clamping block 404 penetrates to the outer side of the clamping ring 401 and is slidably connected to the clamping ring 401.

[0053] An L-shaped mounting frame 410 is fixedly connected to the side of the clamping ring 401 away from the welding mechanism 2, and an abutment plate 411 is rotatably connected to the inner side of the L-shaped mounting frame 410 through a rotating shaft. A rubber pad 412 is fixedly connected to the side of the abutment plate 411 close to the clamping ring 401, and a roller 413 is embedded and installed on the inner side of the clamping block 404. A second motor 414 is fixedly connected to the right side of the L-shaped mounting frame 410 located on the right side of the welding mechanism 2, and the left end of the output shaft of the second motor 414 is fixedly connected to the right center of the abutment plate 411 located on the right side of the welding mechanism 2;

[0054] The bottom of the clamping ring 401 is fixedly connected to the top of the second moving plate 302, the second gear 406 is meshed and connected with the tooth groove 408, the first gear 314 is meshed and connected with the rack 103, and the bevel gear 315 is meshed and connected with the bevel gear ring 409;

[0055] The clamping mechanism 4 moves together with the mobile installation mechanism 3, so that the workpiece initially placed inside the clamping mechanism 4 can be relatively moved to achieve the effect of approaching each other, and in the process of moving together, since the bevel gear 315 will rotate with the movement of the mobile installation mechanism 3, the bevel gear ring 409 can be turned to drive the ring 407 to rotate, and then the tooth groove 408 can be used to turn the gear 2 406 to rotate, and then under the limiting action of the limiting rod 405, the stud 403 can slide along the inner side of the nut 402, driving the multiple clamping blocks 404 to approach the workpiece, so as to achieve the effect of clamping the workpiece;

[0056] This method enables the mobile drive mechanism 1 to drive the mobile installation mechanism 3 to move, and the two circular workpieces placed on the two clamping mechanisms 4 can be clamped while approaching each other to shorten the docking distance, thereby avoiding the problem of the prior art that the workpieces need to be individually controlled for clamping and then controlled to move, so that the workpieces can be automatically clamped in the process of approaching each other, and the distance that needs to be adjusted during subsequent docking is shortened, which is convenient for subsequent docking work.

[0057] After the workpieces are butted, the opposite ends of the two workpieces are respectively abutted by the abutment plates 411, and then the motor 2 414 is started to control the workpieces to rotate, so that when the welding gun 203 is started for welding, welding can be performed while rotating, making the welding more comprehensive and achieving the effect of automatic position adjustment welding;

[0058] The device provides a rubber pad 412 to make the abutment plate 411 more stable after abutting against the workpiece, and reduces the friction between the workpiece and the clamping block 404 by providing a roller 413 , so that the workpiece can rotate while being clamped by multiple clamping blocks 404 .

[0059] like Figure 1 and Figure 2 As shown, a U-shaped frame 5 is fixedly connected to the front of the upper surface of the concave base 101, and an electric push rod 2 6 is fixedly connected to the upper surface of the U-shaped frame 5. The bottom end of the output end of the electric push rod 2 6 is located on the inner side of the U-shaped frame 5 and is fixedly connected to a lower pressure strip 7, and the bottom of the lower pressure strip 7 is in contact with the upper surface of the L-shaped pressure rod 311;

[0060] When the workpiece is clamped by the clamping mechanism 4 and moved closer, the electric push rod 2 6 is started to control the lower pressure bar 7 to press down and squeeze the L-shaped pressure rod 311, so that the sliding block 307 descends, and the movable plate 2 302 is squeezed away from the movable plate 1 301 through the movable rod 309, driving the clamping mechanism 4 to continue to move relatively, so that the workpiece clamped by the clamping mechanism 4 can move relatively over a short distance and dock. This method effectively saves the problem of a large moving distance for docking the workpiece after clamping the workpiece in the prior art.

[0061] According to another aspect of the present invention, an automated municipal steel structure welding process is provided, comprising the following steps: S1, when the device is used, firstly insert the round pipes to be butt-welded into the inner sides of the two clamping mechanisms 4 respectively;

[0062] S2, then controlling the mobile driving mechanism 1 to make the two clamping mechanisms 4 move relative to each other;

[0063] S3. When the mobile drive mechanism 1 is in use, the motor 104 controls the bidirectional screw 102 to rotate, so that the mobile installation mechanism 3 moves; during the movement of the mobile installation mechanism 3, the gear 1 314 is driven and rotated by the rack 103, and then the ring 407 rotates under the meshing transmission of the bevel gear 315 and the bevel gear ring 409, and drives the nut 402 of the gear 2 406 to rotate through the tooth groove 408, so that under the limit of the limit rod 405, the multiple studs 403 push the clamping block 404 to move and clamp the circular steel workpiece, and at this time, the two workpieces are clamped in the process of approaching each other;

[0064] S4. After the workpiece is clamped, the electric push rod 206 is started, and the L-shaped pressure rod 311 is squeezed by the lower pressure bar 7, so that the two movable plates 202 are pushed to move relative to each other under the connection and traction of the movable rod 309, thereby controlling the clamping mechanism 4 to continue to move relative to each other, so that the opposite ends of the two workpieces can abut against each other, and finally, the position of the welding gun 203 is adjusted by controlling the extension or shortening of the electric push rod 202, and then the welding gun 203 and the motor 2014 are started, so that the workpiece is welded while rotating.

[0065] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An automated municipal steel structure welding device, comprising a mobile drive mechanism (1), characterized in that: A welding mechanism (2) is arranged behind the upper surface of the moving drive mechanism (1); The mobile drive mechanism (1) comprises a concave base (101), the interior of the concave base (101) is rotatably connected to a bidirectional screw rod (102) via a rotating shaft, the interior of the concave base (101) is fixedly connected to a rack (103) located behind the bidirectional screw rod (102), and two mobile installation mechanisms (3) are slidably installed on the outer wall of the bidirectional screw rod (102) and located inside the rack rod (103); The mobile installation mechanism (3) comprises a mobile plate 1 (301) and a mobile plate 2 (302); a shaft seat (312) is fixedly connected to the rear of a side of the mobile plate 1 (301) close to the mobile plate 2 (302); and a shaft column (313) is rotatably connected to the inner side of the shaft seat (312) via a rotating shaft; The bottom end and top end of the shaft column (313) are respectively fixedly connected to a gear 1 (314) and a bevel gear (315); A clamping mechanism (4) is arranged above the movable installation mechanism (3); The clamping mechanism (4) comprises a clamping ring (401), the outer wall of the clamping ring (401) is rotatably connected to a nut (402) via a rotating shaft, the inner side of the nut (402) is threadedly connected to a stud (403), one end of the stud (403) penetrates the inner side of the clamping ring (401) and is rotatably connected to a clamping block (404) via a rotating shaft, the outer wall of the nut (402) is fixedly connected to a second gear (406), one side of the clamping ring (401) is rotatably connected to a circular ring (407) via a rotating shaft, a tooth groove (408) is provided on a side of the circular ring (407) close to the second gear (406), and one end of the circular ring (407) away from the tooth groove (408) is fixedly connected to a bevel gear ring (409); The bottom of the clamping ring (401) is fixedly connected to the top of the movable plate 2 (302), the gear 2 (406) is meshingly connected to the tooth groove (408), the gear 1 (314) is meshingly connected to the rack (103), and the bevel gear (315) is meshingly connected to the bevel gear ring (409).

2. The automated municipal steel structure welding device according to claim 1 is characterized by: The right side of the concave base (101) is fixedly connected to a motor 1 (104), and the left end of the output shaft of the motor 1 (104) is fixedly connected to the right end of the bidirectional screw (102).

3. The automated municipal steel structure welding device according to claim 1 is characterized in that: The welding mechanism (2) comprises an L-shaped bracket (201), the upper surface of the L-shaped bracket (201) is fixedly connected to an electric push rod (202), the bottom end of the output end of the electric push rod (202) is located on the inner side of the L-shaped bracket (201) and is fixedly connected to a welding gun (203), and the bottom of the L-shaped bracket (201) is fixedly connected to the upper surface of the concave base (101).

4. The automated municipal steel structure welding device according to claim 1, characterized in that: A plurality of springs (303) are fixedly connected between the moving plate 1 (301) and the moving plate 2 (302); the moving plate 1 (301) is threadedly connected to the bidirectional screw rod (102); and the moving plate 2 (302) is slidably connected to the bidirectional screw rod (102).

5. The automated municipal steel structure welding device according to claim 1 is characterized in that: A through slot (304) is provided at the inner rear of the first movable plate (301) and the inner rear of the second movable plate (302) and on the outer side of the rack (103).

6. The automated municipal steel structure welding device according to claim 1, characterized in that: The movable plate 1 (301) is provided with a notch (305) at the front of a side close to the movable plate 2 (302); a guide rod (306) is fixedly connected to the inner side of the notch (305); a sliding block (307) is slidably connected to the outer wall of the guide rod (306); a fixed column (308) is fixedly connected to the front surface of the sliding block (307); a movable rod (309) is rotatably connected to the outer wall of the fixed column (308) via a rotating shaft; an end of the movable rod (309) away from the fixed column (308) is rotatably connected to a rotating head (310) via a rotating shaft; the rotating head (310) is fixedly connected to the opposite side of the movable plate 2 (302); an L-shaped pressure rod (311) is fixedly connected to the front end of the fixed column (308); the top of the L-shaped pressure rod (311) passes through the upper side of the movable plate 1 (301) and is slidably connected to the movable plate 1 (301).

7. The automated municipal steel structure welding device according to claim 1, characterized in that: Two limiting rods (405) are fixedly connected to the outer wall of the clamping block (404), and one end of the limiting rod (405) away from the clamping block (404) penetrates to the outside of the clamping ring (401) and is slidably connected to the clamping ring (401).

8. The automated municipal steel structure welding device according to claim 1, characterized in that: An L-shaped mounting frame (410) is fixedly connected to a side of the clamping ring (401) away from the welding mechanism (2); an abutment plate (411) is rotatably connected to the inner side of the L-shaped mounting frame (410) via a rotating shaft; a rubber pad (412) is fixedly connected to a side of the abutment plate (411) close to the clamping ring (401); a roller (413) is embedded and installed on the inner side of the clamping block (404); a second motor (414) is fixedly connected to the right side of the L-shaped mounting frame (410) located on the right side of the welding mechanism (2); and a left end of an output shaft of the second motor (414) is fixedly connected to the center of the right side of the abutment plate (411) located on the right side of the welding mechanism (2).

9. The automated municipal steel structure welding device according to claim 6, characterized in that: A U-shaped frame (5) is fixedly connected to the front of the upper surface of the concave base (101), and an electric push rod 2 (6) is fixedly connected to the upper surface of the U-shaped frame (5). The bottom end of the output end of the electric push rod 2 (6) is located on the inner side of the U-shaped frame (5) and is fixedly connected to a lower pressure strip (7), and the bottom of the lower pressure strip (7) is in contact with the upper surface of the L-shaped pressure rod (311).

10. An automated municipal steel structure welding process, comprising an automated municipal steel structure welding device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When the device is used, the round pipes to be butt-welded are first inserted into the inner sides of the two clamping mechanisms (4) respectively; S2, then controlling the moving driving mechanism (1) to make the two clamping mechanisms (4) move relative to each other; S3. When the mobile drive mechanism (1) is in use, the motor 1 (104) controls the bidirectional screw (102) to rotate, so that the mobile installation mechanism (3) moves; during the movement of the mobile installation mechanism (3), the gear 1 (314) is rotated by the rack (103), and then under the meshing transmission of the bevel gear (315) and the bevel gear ring (409), the ring (407) rotates, and drives the nut (402) of the gear 2 (406) to rotate through the tooth groove (408), so that under the limit of the limit rod (405), the multiple studs (403) push the clamping block (404) to move and clamp the circular steel workpiece, and at this time, the two workpieces are clamped in the process of approaching each other; S4. After the workpiece is clamped, the electric push rod 2 (6) is started, and the L-shaped pressure rod (311) is squeezed by the lower pressure bar (7), so that the two movable plates 2 (302) are pushed to move relative to each other under the connection and traction of the movable rod (309), thereby controlling the clamping mechanism (4) to continue to move relative to each other, so that the opposite ends of the two workpieces can abut against each other, and finally, by controlling the electric push rod 1 (202) to extend or shorten, the position of the welding gun (203) is adjusted, and then the welding gun (203) and the motor 2 (414) are started, so that the workpiece is welded while rotating.

Images