Spot welding fixing device for plate butt-joint in municipal engineering

Abstract

A spot welding fixing device for plate butt-joint in municipal engineering, comprising a spot welding table (1) and a spot welding machine body (3) arranged above the spot welding table, and further comprising a spot welding mechanism (2) arranged on the surface of the spot welding table. The spot welding mechanism comprises a spot welding assembly (21), a displacement assembly (22), a distance adjusting assembly (23), and a translation assembly (24). The spot welding assembly is arranged on the upper surface of the spot welding table; the displacement assembly is arranged on the surface of the spot welding assembly and connected to the spot welding assembly; and the distance adjusting assembly is arranged on the surface of the displacement assembly and connected to the displacement assembly. The spot welding fixing device for plate butt-joint facilitates intermittent horizontal movement and vertical reciprocating movement of the spot welding machine body, achieves equidistant spot welding fixing procedures for plates, improves the use effect of the spot welding fixing device for plate butt-joint, facilitates adjustment of the position distance between every two adjacent spot welding, and widens the application range of the spot welding fixing device.

Description

A plate butt spot welding fixing device for municipal engineering Technical Field

[0001] The invention belongs to the technical field of municipal engineering, and in particular relates to a plate butt spot welding fixing device used in municipal engineering. Background Art

[0002] Municipal engineering refers to municipal infrastructure construction projects. Municipal infrastructure refers to various buildings, structures, and equipment that are set up within the planned construction areas of urban areas and towns to provide paid or free public products and services to residents. Panels are flat rectangular building material panels made of standard sizes and used in the construction industry. Panels are divided into thin panels, medium panels, thick panels, and extra-thick panels. When panels are used in municipal engineering, they often need to be spot-welded to achieve splicing.

[0003] Currently, when spot welding two plates together, workers are required to push the plates to move while the spot welding head is raised and lowered for spot welding. During this process, the distance between two adjacent spot welding positions cannot be controlled, thus affecting the spot welding effect of the plates. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a plate butt spot welding fixture for municipal engineering, which is conducive to the intermittent horizontal movement and vertical reciprocating movement of the spot welding machine body, realizes the equidistant spot welding and fixing process of the plate, improves the use effect of the plate butt spot welding fixture, is conducive to adjusting the position spacing between two adjacent spot welds, and improves the application range of the spot welding fixture.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a panel butt spot welding fixing device for municipal engineering, comprising a spot welding table and a spot welding machine body arranged above the spot welding table, and also comprising a spot welding mechanism arranged on the surface of the spot welding table;

[0006] The spot welding mechanism includes a spot welding component, a displacement component, a torque adjustment component and a translation component. The spot welding component is arranged on the upper surface of the spot welding table, the displacement component is arranged on the surface of the spot welding component and connected to the spot welding component, the torque adjustment component is arranged on the surface of the displacement component and connected to the displacement component, and the translation component is arranged on the upper surface of the spot welding table and connected to the spot welding component.

[0007] The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame of the first motor, wherein the cam is fixedly mounted on the support frame of the first motor and the cam is fixedly mounted on the support frame of the first motor.

[0008] As a preferred device for spot welding and fixing of plate parts for municipal engineering according to the present invention, the spot welding assembly also includes a mounting plate, a rectangular frame and a T-shaped slider, the T-shaped slider is inserted into a guide groove opened on the upper surface of the square support plate, and the T-shaped slider is slidingly connected to the square support plate through the guide groove, the mounting plate is fixedly connected to the front surface of the T-shaped slider, and the surfaces of the mounting plate and the square support plate are in contact with each other, the spot welding machine body is installed below the mounting plate, the rectangular frame is fixedly connected to a side of the T-shaped slider away from the mounting plate, and the connecting shaft is inserted into the inside of the rectangular frame, and the connecting shaft and the rectangular frame are slidingly connected.

[0009] As a preferred embodiment of the panel butt spot welding fixing device for municipal engineering of the present invention, a laser lamp is installed on the front surface of the mounting plate.

[0010] The cam is mounted on a first end of the support frame, and the second end of the support frame is mounted on a second end of the support frame. The cam is mounted on a first end of the support frame, and the second end of the support frame is mounted on a second end of the support frame.

[0011] As a preferred plate butt spot welding fixing device for municipal engineering of the present invention, the displacement assembly also includes an arc block and a rectangular rod, the two rectangular rods are symmetrically arranged on the side of the second rotating disk away from the lower support plate, and the two arc blocks are respectively fixedly connected to the ends of the two rectangular rods away from each other, and rectangular grooves are equidistantly provided on the upper surface of the spot welding table near the lower position of the arc block.

[0012] As a preferred plate butt spot welding fixing device for municipal engineering of the present invention, the torque adjustment assembly includes a first threaded rod, a second threaded rod and a rectangular sleeve, the two rectangular sleeves are symmetrically fixedly connected to the side of the second rotating disk away from the lower support plate, the two rectangular rods are respectively inserted into the inside of the two rectangular sleeves, and the rectangular rods and the rectangular sleeves are slidably connected, the adjacent sides of the two rectangular rods are respectively provided with threaded holes, and the first threaded rod and the second threaded rod are respectively inserted into the inside of the two rectangular rods, the first threaded rod and the second threaded rod are respectively threadedly connected to the two rectangular rods through the threaded holes, and the threads embedded on the surfaces of the second threaded rod and the first threaded rod are opposite in direction.

[0013] As a preferred plate butt spot welding fixing device for municipal engineering of the present invention, the torque adjustment assembly also includes a knob and a second bearing, the two second bearings are respectively sleeved on the surface of the first threaded rod and the second threaded rod, and the outer ring of the second bearing is fixedly connected to the second rotating disk, the first threaded rod and the second threaded rod are respectively rotatably connected to the surface of the second rotating disk through the second bearings, the knob is arranged between the first threaded rod and the second threaded rod, and the knob is fixedly connected to the first threaded rod and the second threaded rod.

[0014] As a preferred panel butt spot welding fixing device for municipal engineering of the present invention, the translation assembly includes a U-shaped card plate and a rectangular slide plate, and a T-shaped slot is provided on the upper surface of the spot welding table near the lower position of the square support plate, and the U-shaped card plate is inserted into the inside of the T-shaped slot, and the rectangular slide plate is arranged between the square support plate and the U-shaped card plate, and the rectangular slide plate is fixedly connected to the U-shaped card plate and the square support plate, and the rectangular slide plate and the U-shaped card plate are slidably connected to the inside of the spot welding table through the T-shaped slot.

[0015] As a preferred panel butt spot welding fixing device for municipal engineering of the present invention, rollers are equidistantly arranged inside the U-shaped clamping plate, and the rollers are rotatably connected to the U-shaped clamping plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: it is conducive to the intermittent horizontal movement and vertical reciprocating movement of the spot welding machine body, realizing the equidistant spot welding and fixing process of the plate, improving the use effect of the plate butt spot welding and fixing device, and is conducive to adjusting the position spacing between two adjacent spot welds, thereby improving the application range of the spot welding and fixing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] FIG1 is a schematic diagram of the overall structure of the present invention;

[0019] FIG2 is a cross-sectional view of the present invention;

[0020] FIG3 is an enlarged view of point A in FIG2 of the present invention;

[0021] FIG4 is a schematic structural diagram of a square support plate and a rectangular slide plate in the present invention;

[0022] FIG5 is a schematic structural diagram of a T-shaped slider and a mounting plate in the present invention;

[0023] FIG6 is a schematic structural diagram of the second synchronous wheel and the synchronous belt in the present invention;

[0024] FIG7 is a schematic structural diagram of a rectangular frame and a first rotating disk in the present invention;

[0025] FIG8 is a schematic structural diagram of the first rotating disk and the first synchronous wheel in the present invention;

[0026] FIG9 is a schematic structural diagram of the second rotating disk and the second synchronous wheel in the present invention;

[0027] In the picture:

[0028] 1. Spot welding table; 2. Spot welding mechanism; 3. Spot welding machine body;

[0029] 21. Spot welding assembly; 211. Mounting plate; 212. First circular groove; 213. Square support plate; 214. Guide groove; 215. T-shaped slider; 216. Positioning block; 217. Upper support plate; 218. First motor; 219. First synchronous wheel; 2110. First rotating disk; 2111. Connecting shaft; 2112. Rectangular frame; 2113. Laser light;

[0030] 22. Displacement assembly; 221. First bearing; 222. Rotating shaft; 223. Second synchronous wheel; 224. Synchronous belt; 225. Lower support plate; 226. Second rotating disk; 227. Second circular groove; 228. Rectangular groove; 229. Arc block; 2210. Rectangular rod;

[0031] 23. Torque adjustment assembly; 231. First threaded rod; 232. Second threaded rod; 233. Second bearing; 234. Knob; 235. Rectangular sleeve; 236. Threaded hole;

[0032] 24. Translation assembly; 241. T-slot; 242. Roller; 243. U-shaped pallet; 244. Rectangular slide. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] A plate butt spot welding fixing device for municipal engineering, comprising a spot welding platform 1 and a spot welding machine body 3 arranged above the spot welding platform 1, and further comprising a spot welding mechanism 2 arranged on the surface of the spot welding platform 1;

[0035] The spot welding mechanism 2 includes a spot welding component 21, a displacement component 22, a torque adjustment component 23 and a translation component 24. The spot welding component 21 is arranged on the upper surface of the spot welding table 1, the displacement component 22 is arranged on the surface of the spot welding component 21 and is connected to the spot welding component 21, the torque adjustment component 23 is arranged on the surface of the displacement component 22 and is connected to the displacement component 22, and the translation component 24 is arranged on the upper surface of the spot welding table 1 and is connected to the spot welding component 21.

[0036] In an optional embodiment, the spot welding assembly 21 includes a square support plate 213, a positioning block 216, an upper support plate 217, a first motor 218, a first synchronous wheel 219, a first rotating disk 2110 and a connecting shaft 2111, the square support plate 213 is arranged above the spot welding table 1, the positioning block 216 is fixedly connected to the rear surface of the square support plate 213, the upper support plate 217 is fixedly connected to the upper surface of the positioning block 216, the first motor 218 is installed on the side of the upper support plate 217 away from the square support plate 213, the first synchronous wheel 219 is arranged on the square support Between the plate 213 and the upper support plate 217, the output shaft of the first motor 218 passes through the first circular groove 212 opened on the surface of the upper support plate 217 and is fixedly connected to the first synchronous wheel 219. The output shaft of the first motor 218 is rotatably connected to the upper support plate 217 through the first circular groove 212. The first rotating disk 2110 is fixedly connected to the side of the first synchronous wheel 219 away from the upper support plate 217. The connecting shaft 2111 is fixedly connected to the side of the first rotating disk 2110 away from the first synchronous wheel 219, and the connecting shaft 2111 is close to the edge of the first rotating disk 2110.

[0037] In an optional embodiment, the spot welding assembly 21 also includes a mounting plate 211, a rectangular frame 2112 and a T-shaped slider 215. The T-shaped slider 215 is inserted into a guide groove 214 opened on the upper surface of the square support plate 213, and the T-shaped slider 215 is slidingly connected to the square support plate 213 through the guide groove 214. The mounting plate 211 is fixedly connected to the front surface of the T-shaped slider 215, and the surfaces of the mounting plate 211 and the square support plate 213 are in contact with each other. The spot welding machine body 3 is installed below the mounting plate 211, the rectangular frame 2112 is fixedly connected to the side of the T-shaped slider 215 away from the mounting plate 211, and the connecting shaft 2111 is inserted into the inside of the rectangular frame 2112, and the connecting shaft 2111 and the rectangular frame 2112 are slidingly connected.

[0038] In an optional embodiment, a laser lamp 2113 is installed on the front surface of the mounting plate 211 .

[0039] In an optional embodiment, the displacement assembly 22 includes a first bearing 221, a rotating shaft 222, a second synchronous wheel 223, a synchronous belt 224, a lower support plate 225 and a second rotating disk 226. The lower support plate 225 is fixedly connected to the bottom surface of the positioning block 216, and the rotating shaft 222 is inserted into the second circular groove 227 opened on the surface of the lower support plate 225. The rotating shaft 222 is rotatably connected to the lower support plate 225 through the second circular groove 227. The first bearing 221 is installed on the surface of the square support plate 213, and the rotating shaft 222 is rotated through the first bearing 221 is rotatably connected to the square support plate 213, the second synchronous wheel 223 is sleeved on the surface of the rotating shaft 222, the second synchronous wheel 223 is located between the lower support plate 225 and the square support plate 213, and the second synchronous wheel 223 and the rotating shaft 222 are fixedly connected, the synchronous belt 224 is sleeved on the surface of the second synchronous wheel 223 and the first synchronous wheel 219, the second rotating disk 226 is arranged on the side of the lower support plate 225 away from the second synchronous wheel 223, and the end of the rotating shaft 222 away from the first bearing 221 is fixedly connected to the second rotating disk 226.

[0040] In an optional embodiment, the displacement assembly 22 further includes an arc block 229 and a rectangular rod 2210, the two rectangular rods 2210 are symmetrically arranged on the side of the second rotating disk 226 away from the lower support plate 225, and the two arc blocks 229 are respectively fixedly connected to the ends of the two rectangular rods 2210 away from each other, and rectangular grooves 228 are equidistantly provided on the upper surface of the spot welding table 1 near the lower position of the arc block 229.

[0041] In an optional embodiment, the torque adjustment assembly 23 includes a first threaded rod 231, a second threaded rod 232 and a rectangular sleeve 235, the two rectangular sleeves 235 are symmetrically fixedly connected to the side of the second rotating disk 226 away from the lower support plate 225, the two rectangular rods 2210 are respectively inserted into the two rectangular sleeves 235, and the rectangular rods 2210 and the rectangular sleeves 235 are slidingly connected, the adjacent sides of the two rectangular rods 2210 are respectively provided with threaded holes 236, and the first threaded rod 231 and the second threaded rod 232 are respectively inserted into the two rectangular rods 2210, the first threaded rod 231 and the second threaded rod 232 are respectively threadedly connected to the two rectangular rods 2210 through the threaded holes 236, and the threads embedded on the surfaces of the second threaded rod 232 and the first threaded rod 231 are opposite in direction.

[0042] In an optional embodiment, the torque adjustment assembly 23 also includes a knob 234 and a second bearing 233, and the two second bearings 233 are respectively sleeved on the surfaces of the first threaded rod 231 and the second threaded rod 232, and the outer ring of the second bearing 233 is fixedly connected to the second rotating disk 226, and the first threaded rod 231 and the second threaded rod 232 are respectively rotatably connected to the surface of the second rotating disk 226 through the second bearing 233, and the knob 234 is arranged between the first threaded rod 231 and the second threaded rod 232, and the knob 234 is fixedly connected to the first threaded rod 231 and the second threaded rod 232.

[0043] In an optional embodiment, the translation assembly 24 includes a U-shaped card plate 243 and a rectangular slide 244. A T-shaped slot 241 is provided on the upper surface of the spot welding station 1 near the lower position of the square support plate 213. The U-shaped card plate 243 is inserted into the inside of the T-shaped slot 241. The rectangular slide 244 is arranged between the square support plate 213 and the U-shaped card plate 243, and the rectangular slide 244 is fixedly connected to the U-shaped card plate 243 and the square support plate 213. The rectangular slide 244 and the U-shaped card plate 243 are slidably connected to the inside of the spot welding station 1 through the T-shaped slot 241.

[0044] In an optional embodiment, rollers 242 are equidistantly arranged inside the U-shaped clamping plate 243 , and the rollers 242 and the U-shaped clamping plate 243 are rotatably connected.

[0045] In this embodiment: when the device is used, the connection lines of the spot welding machine body 3 and the first motor 218 are connected to the external power supply, so that the welding positions of the two plates to be spot welded are aligned, and the positions to be welded are located directly below the spot welding machine body 3. The operation controller starts the spot welding machine body 3 and the first motor 218. The operation of the first motor 218 drives the first synchronous wheel 219 to rotate, and the rotation of the first synchronous wheel 219 drives the first rotating disk 2110 to rotate. The rotation of the first rotating disk 2110 drives the connecting shaft 2111 to rotate with the output shaft of the first motor 218 as the axis. The connecting shaft 2111 slides inside the rectangular frame 2112 during the rotation, thereby causing the rectangular frame 2112 to move vertically. The rectangular frame 2112 moves During the spot welding process, the T-shaped slider 215 is driven to slide inside the square support plate 213. The movement of the T-shaped slider 215 drives the mounting plate 211 and the spot welding machine body 3 to move synchronously. When the connecting shaft 2111 rotates to the lowest point, the electrode arm of the spot welding machine body 3 contacts the spot welding position of the two plates, thereby realizing the spot welding process of the two plates. During the spot welding process, as the first motor 218 drives the first synchronous wheel 219 to rotate, the rotation of the first synchronous wheel 219 drives the second synchronous wheel 223 to rotate through the synchronous belt 224. The rotation of the second synchronous wheel 223 drives the rotating shaft 222 to rotate synchronously. When the rotating shaft 222 rotates, it drives the second rotating disk 226 to rotate. The rotation of the second rotating disk 226 drives the two rectangular rods 2210 on its surface to rotate. When the connecting shaft 2111 is at its highest point, the rectangular rod 2210 is parallel to the upper surface of the spot welding table 1. As the connecting shaft 2111 rotates, when the connecting shaft 2111 rotates to 90 degrees, the two rectangular rods 2210 and the upper surface of the spot welding table 1 are in a vertical state. When the connecting shaft 2111 is at its lowest point, the rectangular rod 2210 and the upper surface of the spot welding table 1 are parallel. As the rectangular rod 2210 drives the arc block 229 to rotate, when the arc block 229 is inserted into the inside of the rectangular groove 228, the square support plate 213 can slide on the surface of the spot welding table 1. After the arc block 229 slides out of the inside of the rectangular groove 228, the square support plate 213 stops moving, so that the square support plate 213 moves intermittently, and when When the square support plate 213 stops moving, the spot welding machine body 3 realizes a single spot welding process for the plate, which is conducive to the intermittent horizontal movement and vertical reciprocating movement of the spot welding machine body 3, realizing the equidistant spot welding and fixing process for the plate, and improving the use effect of the plate butt spot welding and fixing device. When it is necessary to adjust the position spacing between two adjacent spot welds, the knob 234 is turned. The rotation of the knob 234 drives the first threaded rod 231 and the second threaded rod 232 to rotate synchronously. The rotation of the first threaded rod 231 and the second threaded rod 232 can make the two rectangular rods 2210 move toward or away from each other under the action of the threaded hole 236. When the two rectangular rods 2210 move in a direction away from each other, the spacing of the single movement of the square support plate 213 can be increased.When the two rectangular rods 2210 move toward each other, the spacing of the square support plate 213 in a single movement can be reduced. Different spacings in a single movement, that is, different spacings between adjacent spot welding positions, are beneficial for adjusting the spacing between adjacent spot welding positions, thereby improving the scope of application of the spot welding fixture. During the movement of the square support plate 213, the movement of the square support plate 213 drives the U-shaped clamping plate 243 to move via the rectangular slide 244. During the movement, the U-shaped clamping plate 243 drives the roller 242 to roll on the surface of the spot welding table 1, thereby allowing the spot welding machine body 3 to move smoothly and reducing the force applied during the movement of the spot welding machine body 3, which is beneficial for reducing the generation of friction during the movement of the spot welding machine body 3.

[0046] It should be noted that: when the connecting shaft 2111 is at the highest point, the rectangular rod 2210 is parallel to the upper surface of the spot welding table 1. As the connecting shaft 2111 rotates, when the connecting shaft 2111 rotates to 90 degrees, the two rectangular rods 2210 and the upper surface of the spot welding table 1 are in a vertical state. When the connecting shaft 2111 is at the lowest point, the rectangular rod 2210 and the upper surface of the spot welding table 1 are parallel, so that the square support plate 213 moves intermittently. When the square support plate 213 stops moving, the spot welding machine body 3 realizes a single spot welding process of the plate.

[0047] It should be noted that the spot welder 3 is a mechanical device that uses the principle of double-sided, double-point overcurrent welding. During operation, two electrodes pressurize the workpiece, causing the two layers of metal to form a certain contact resistance under the pressure of the two electrodes. When the welding current flows from one electrode to the other, a momentary thermal weld is formed at the two contact resistance points. The welding current also instantly flows from the other electrode along the two workpieces to this electrode to form a loop without damaging the internal structure of the welded workpiece. The model of the spot welder 3 is SPW-150K.

[0048] It should be noted that the spacing between two adjacent rectangular grooves 228 is small. When adjusting the position spacing between two adjacent spot welds, after rotating the knob 234 to adjust the position of the two rectangular rods 2210, it is necessary to further fine-tune the position of the rectangular rods 2210 so that the arc block 229 is located exactly inside the rectangular groove 228 when rotating, thereby ensuring the use effect of the spot welding fixture.

[0049] It should be noted that the synchronous wheel is generally made of materials such as steel, aluminum alloy, cast iron, and brass. The synchronous belt 224 is composed of a closed ring belt with equally spaced teeth on the inner surface. The transmission accuracy is ensured through the transmission of the second synchronous wheel 223, the first synchronous wheel 219 and the synchronous belt 224. The first synchronous wheel 219 and the second synchronous wheel 223 are of the same model, so that the first synchronous wheel 219 and the second synchronous wheel 223 rotate the same number of times.

[0050] It should be noted that the laser emitted by the laser lamp 2113 can make the welding positions of the two plates to be spot welded be located directly below the spot welding machine body 3.

[0051] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A plate butt spot welding fixing device for municipal engineering, comprising a spot welding platform (1) and a spot welding machine body (3) arranged above the spot welding platform (1), characterized in that: It also includes a spot welding mechanism (2) arranged on the surface of the spot welding platform (1); The spot welding mechanism (2) comprises a spot welding component (21), a displacement component (22), a distance adjustment component (23) and a translation component (24); the spot welding component (21) is arranged on the upper surface of the spot welding platform (1); the displacement component (22) is arranged on the surface of the spot welding component (21) and is connected to the spot welding component (21); the distance adjustment component (23) is arranged on the surface of the displacement component (22) and is connected to the displacement component (22); the translation component (24) is arranged on the upper surface of the spot welding platform (1) and is connected to the spot welding component (21); the spot welding component (21) comprises a square support plate (213), a positioning block (216), an upper support plate (217), a first A motor (218), a first synchronous wheel (219), a first rotating disk (2110) and a connecting shaft (2111); the square support plate (213) is arranged above the spot welding table (1); the positioning block (216) is fixedly connected to the rear surface of the square support plate (213); the upper support plate (217) is fixedly connected to the upper surface of the positioning block (216); the first motor (218) is mounted on a side of the upper support plate (217) away from the square support plate (213); the first synchronous wheel (219) is arranged between the square support plate (213) and the upper support plate (217); and the output shaft of the first motor (218) passes through the surface of the upper support plate (217). The first circular groove (212) is formed in the first rotating disk (2110) and is fixedly connected to the first synchronous wheel (219); the output shaft of the first motor (218) is rotatably connected to the upper support plate (217) via the first circular groove (212); the first rotating disk (2110) is fixedly connected to a side of the first synchronous wheel (219) away from the upper support plate (217); the connecting shaft (2111) is fixedly connected to a side of the first rotating disk (2110) away from the first synchronous wheel (219), and the connecting shaft (2111) is close to an edge of the first rotating disk (2110); the spot welding assembly (21) further comprises a mounting plate (211), a rectangular frame (2112) and a T-shaped slider (215); The T-shaped slider (215) is inserted into a guide groove (214) provided on the upper surface of the square support plate (213), and the T-shaped slider (215) is slidably connected to the square support plate (213) via the guide groove (214); the mounting plate (211) is fixedly connected to the front surface of the T-shaped slider (215), and the surfaces of the mounting plate (211) and the square support plate (213) are in contact with each other; the spot welding machine body (3) is installed below the mounting plate (211); the rectangular frame (2112) is fixedly connected to a side of the T-shaped slider (215) away from the mounting plate (211), and the connecting shaft (2111) is inserted into the interior of the rectangular frame (2112);The connecting shaft (2111) and the rectangular frame (2112) are slidably connected.

2. The plate butt spot welding fixing device for municipal engineering according to claim 1 is characterized in that: A laser lamp (2113) is mounted on the front surface of the mounting plate (211).

3. The plate butt spot welding fixing device for municipal engineering according to claim 1 is characterized in that: The displacement assembly (22) comprises a first bearing (221), a rotating shaft (222), a second synchronous wheel (223), a synchronous belt (224), a lower support plate (225) and a second rotating disk (226); the lower support plate (225) is fixedly connected to the bottom surface of the positioning block (216); the rotating shaft (222) is inserted into a second circular groove (227) provided on the surface of the lower support plate (225); the rotating shaft (222) is rotatably connected to the lower support plate (225) via the second circular groove (227); the first bearing (221) is mounted on the surface of the square support plate (213); the rotating shaft (222) is rotatably connected to the lower support plate (225) via the first bearing (221) and the square The support plate (213) is rotatably connected, the second synchronous wheel (223) is sleeved on the surface of the rotating shaft (222), the second synchronous wheel (223) is located between the lower support plate (225) and the square support plate (213), and the second synchronous wheel (223) and the rotating shaft (222) are fixedly connected, the synchronous belt (224) is sleeved on the surfaces of the second synchronous wheel (223) and the first synchronous wheel (219), the second rotating disk (226) is arranged on a side of the lower support plate (225) away from the second synchronous wheel (223), and one end of the rotating shaft (222) away from the first bearing (221) is fixedly connected to the second rotating disk (226).

4. The plate butt spot welding fixing device for municipal engineering according to claim 3 is characterized in that: The displacement assembly (22) further comprises an arc block (229) and a rectangular rod (2210), wherein the two rectangular rods (2210) are symmetrically arranged on a side of the second rotating disk (226) away from the lower support plate (225), and the two arc blocks (229) are respectively fixedly connected to ends of the two rectangular rods (2210) away from each other, and rectangular grooves (228) are equidistantly provided on the upper surface of the spot welding table (1) at positions below the arc blocks (229).

5. The plate butt spot welding fixing device for municipal engineering according to claim 4 is characterized in that: The pitch adjustment assembly (23) comprises a first threaded rod (231), a second threaded rod (232) and a rectangular sleeve (235); the two rectangular sleeves (235) are symmetrically fixedly connected to a side of the second rotating disk (226) away from the lower support plate (225); the two rectangular rods (2210) are respectively inserted into the inside of the two rectangular sleeves (235); the rectangular rods (2210) and the rectangular sleeves (235) are slidably connected; threaded holes (236) are respectively provided on adjacent sides of the two rectangular rods (2210); the first threaded rod (231) and the second threaded rod (232) are respectively inserted into the inside of the two rectangular rods (2210); the first threaded rod (231) and the second threaded rod (232) are respectively threadedly connected to the two rectangular rods (2210) through the threaded holes (236); and the threads inlaid on the surfaces of the second threaded rod (232) and the first threaded rod (231) have opposite directions.

6. The plate butt spot welding fixing device for municipal engineering according to claim 5 is characterized in that: The pitch adjustment assembly (23) further comprises a knob (234) and a second bearing (233); the two second bearings (233) are respectively sleeved on the surfaces of the first threaded rod (231) and the second threaded rod (232); the outer rings of the second bearings (233) are fixedly connected to the second rotating disk (226); the first threaded rod (231) and the second threaded rod (232) are respectively rotatably connected to the surface of the second rotating disk (226) via the second bearings (233); the knob (234) is arranged between the first threaded rod (231) and the second threaded rod (232); and the knob (234) is fixedly connected to the first threaded rod (231) and the second threaded rod (232).

7. The plate butt spot welding fixing device for municipal engineering according to claim 1 is characterized in that: The translation assembly (24) comprises a U-shaped card plate (243) and a rectangular slide plate (244); a T-shaped slot (241) is provided on the upper surface of the spot welding platform (1) at a position below the square support plate (213); the U-shaped card plate (243) is inserted into the inside of the T-shaped slot (241); the rectangular slide plate (244) is arranged between the square support plate (213) and the U-shaped card plate (243); the rectangular slide plate (244) is fixedly connected to the U-shaped card plate (243) and the square support plate (213); and the rectangular slide plate (244) and the U-shaped card plate (243) are slidably connected to the inside of the spot welding platform (1) via the T-shaped slot (241).

8. The plate butt spot welding fixing device for municipal engineering according to claim 7 is characterized in that: Rollers (242) are equidistantly arranged inside the U-shaped clamping plate (243), and the rollers (242) and the U-shaped clamping plate (243) are rotatably connected.

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