Photovoltaic support welding device for building outer wall transformation

Abstract

The utility model discloses a photovoltaic support welding device for building outer wall transformation, and relates to the technical field of photovoltaic building construction equipment, the photovoltaic support welding device comprises a holding assembly, the holding assembly comprises a holding handle body, a connecting piece is fixedly installed at the front end of the holding handle body, and a feeding assembly is slidably installed on the outer wall of the connecting piece; a welding gun body is fixedly installed at the end, away from the grip body, of the connecting piece, and a protection assembly used for forming a gas hood and preventing sparks from splashing is installed on the outer wall of the end of the welding gun body. The sliding feeding assembly can continue to convey unused welding wires, then the utilization rate of the welding wires is increased, the protective cover wraps the molten pool, sparks and slag are prevented from splashing, a rectification air curtain is formed through tiny inclined holes in the outer wall of the protective cover, the gas protection effect is further enhanced, the chemical reaction between the molten pool and nitrogen and oxygen in air is prevented, and the welding wire utilization rate is increased. Air holes are formed in welding seams, and metal is oxidized and brittle fractured.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic building construction equipment, in particular to a photovoltaic bracket welding device for rebuilding building exterior walls. Background Art

[0002] With the promotion of green buildings and clean energy, photovoltaic brackets are increasingly used in building exterior wall renovation projects. To ensure the secure installation of photovoltaic brackets on the exterior wall, on-site welding operations are usually required. Existing welding equipment mostly relies on manual handheld welding guns and external wire supply structures during operation. This has problems such as unstable wire feeding, cumbersome operation, and insufficient weld protection, which can easily lead to unstable welding quality. In addition, high-temperature slag and sparks during welding pose a threat to the safety of operators.

[0003] In addition, traditional welding devices are often not equipped with automatic responsive protection mechanisms. The molten pool is exposed to the air and is easily disturbed by gases such as oxygen and nitrogen, resulting in pores, metal oxidation and even cracks in the weld, affecting the mechanical properties and service life of the overall structure. At the same time, when the welding wire is almost exhausted, the feeding path cannot be flexibly adjusted, which can easily lead to material waste. In summary, the existing technology requires a welding device with stable feeding, gas protection and automatic protection functions to improve the quality, efficiency and operational safety of photovoltaic bracket welding.

[0004] After searching, it was found that the prior art publication number is CN218775955U, which discloses a photovoltaic bracket welding device, including a device body, the device body including a slide, a cooling pipe, a slide, a support frame and a slide rail, a welding head is installed on the top of the device body, a cooling pipe is provided on the outside of the welding head, and one end of the cooling pipe is connected to the water tank, and the other end of the cooling pipe is connected to the circulation pump, and the other end of the circulation pump is connected to the water tank through the cooling pipe, and a cooling module is installed between the water tank and the circulation pump, and an air blowing device is installed on one side of the device body, and there are three air blowing devices. This scheme can cool the welding head through the cooling pipe outside the welding head during welding, which is beneficial to avoid the welding head from overheating during long-term use, and at the same time, the processed bracket is supported by the ball bearing on the top of the support rod, which is beneficial to reduce contact with the bracket, and thus helps to avoid scratches on the bracket surface.

[0005] Therefore, based on the above search and combined with existing technologies, an existing photovoltaic bracket welding device needs to rely on an external independent wire supply device in actual welding operations, and cannot achieve automatic and continuous supply of welding wire, which can easily cause unstable feeding, interrupt the welding process, reduce operating efficiency, and is not conducive to the integration of the overall device. Utility Model Content

[0006] The purpose of the utility model is to provide a photovoltaic bracket welding device for building exterior wall reconstruction to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A photovoltaic bracket welding device for building exterior wall renovation includes a grip assembly, which includes a grip body, a connecting piece fixedly installed at the front end of the grip body, a feeding assembly slidably installed on the outer wall of the connecting piece, a welding gun body fixedly installed on the end of the connecting piece away from the grip body, and a protective assembly for forming an air hood and preventing sparks from flying installed on the outer wall of the end of the welding gun body.

[0009] Furthermore, a mounting bracket is welded and fixed to the bottom end of the handle body, a coiling drum is rotatably mounted on the end of the mounting bracket, and welding wire is wound around the outer wall of the coiling drum.

[0010] Furthermore, the connecting member includes a plurality of polished rods, and the front and rear ends of the plurality of polished rods are respectively commonly installed with a front end ring and a rear end plate, and the end of the handle body is coaxially fixedly connected with the rear end plate.

[0011] Furthermore, the feeding assembly includes a moving ring, and a plurality of sliding cylinders are welded and fixed on the outer wall of the moving ring at equal intervals. Two mounting cylinders are symmetrically provided on the inner wall of the moving ring. The mounting cylinders are slidably sleeved on the outer walls of a plurality of light rods. Sliding rods are slidably installed on the inner walls of the two mounting cylinders. Rotating frames are fixedly installed on the ends of the two sliding rods away from the mounting cylinders. The inner walls of the two rotating frames are respectively rotatably connected with driving wheels and driven wheels.

[0012] Furthermore, a stepping motor is coaxially fixedly mounted on the rotating shaft of the driving wheel after passing through the side wall of the rotating frame, and the welding wire is clamped between the driving wheel and the driven wheel.

[0013] Furthermore, sliding blocks are installed on the ends of the two sliding rods away from the rotating frame, and springs are sandwiched between the two sliding blocks and the inner bottom surfaces of the two installation cylinders.

[0014] Furthermore, the protection assembly includes a storage ring, which is fixedly mounted on the outer wall of the nozzle of the welding gun body, and a driving groove is mounted on the front end surface of the storage ring.

[0015] Furthermore, a driving ring is slidably installed on the inner wall of the driving groove, and an annular piston is coaxially fixedly installed on the rear end face of the driving ring. The annular piston is slidably connected to the inner wall of the driving groove. The front end of the driving ring passes through the front side wall of the driving groove and is connected to a protective cover. A sleeve is fixedly installed at the center of the rear end face of the protective cover. The sleeve is slidably sleeved on the outer wall of the nozzle of the welding gun body, and the rear end face of the sleeve is fixedly connected to the front end face of the driving ring.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When the device of this utility model is in use, the handle body and the connecting piece form an integral supporting operating structure, allowing the operator to easily move the welding gun body to the welding position and achieve precise positioning. The feeding assembly slidingly arranged on the outer wall of the connecting piece, driven by a stepper motor, cooperates with the driving wheel and the driven wheel to clamp the welding wire, achieving stable and continuous feeding of the welding wire. This structure has a smooth linkage, effectively preventing welding wire jams, and improving welding continuity and work efficiency.

[0018] 2. When the device of this utility model is in use, the movable ring on the sliding feed assembly is moved forward along the polished rod. When the welding wire is almost exhausted, the sliding feed assembly can continue to feed the unused welding wire, thereby improving the welding wire utilization rate and avoiding resource waste. The manual adjustment is integrated with the feeding mechanism, which is easy to operate and improves the economic and practicality of the entire device.

[0019] 3. When the device of the present invention is in use, the protective cover covers the molten pool to prevent sparks and slag from flying. The protective cover is made of high-borosilicate heat-resistant glass with good transparency and high-temperature resistance. The tiny inclined holes on its outer wall form a rectifying air curtain, which further enhances the gas protection effect and prevents the molten pool from chemically reacting with nitrogen and oxygen in the air, which would cause pores in the weld and metal oxidation and brittle cracking. Ultimately, automatic responsive protection of the welding area and high-quality formed welds are achieved to ensure safe operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is an exploded view of the overall structure of the utility model;

[0022] Figure 3 This is an exploded view of the grip assembly structure of the present invention;

[0023] Figure 4 This is a structural parts diagram of the connector of the present utility model;

[0024] Figure 5 This is an exploded view of the feeding assembly structure of the present utility model;

[0025] Figure 6 This is an exploded view of the protective component structure of the present invention.

[0026] In the picture:

[0027] 1. Grip assembly; 11. Grip body; 111. Mounting frame; 112. Fixing ring; 12. Coil drum;

[0028] 2. Connector; 21. Polished rod; 22. Rear end plate; 23. Front end ring;

[0029] 3. Feeding assembly; 31. Moving ring; 311. Sliding cylinder; 312. Mounting cylinder; 32. Sliding rod; 321. Rotating frame; 33. Driving wheel; 34. Driven wheel; 35. Stepping motor; 36. Spring;

[0030] 4. Welding gun body;

[0031] 5. Protective assembly; 51. Storage ring; 511. Drive groove; 52. Drive ring; 521. Annular piston; 53. Protective cover; 531. Sleeve. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0033] Example 1: Please refer to Figures 1 to 4 A photovoltaic bracket welding device for building exterior wall renovation includes a grip assembly 1, which includes a grip body 11, a connecting piece 2 is fixedly installed at the front end of the grip body 11, and a feeding assembly 3 is slidably installed on the outer wall of the connecting piece 2, and a welding gun body 4 is fixedly installed on the end of the connecting piece 2 away from the grip body 11. Specifically, the welding gun body 4 is connected to the welding machine through a conductive nozzle, and the current is transmitted through a cable. The welding gun body 4 is connected to a gas cylinder through a hose, and the carbon dioxide inside the gas cylinder is connected to the gas channel inside the welding gun through a gas hose. The carbon dioxide is ejected from around the nozzle of the welding gun body 4 to form a gas protection gas curtain. The protective gas curtain surrounds the center of the welding wire and covers the molten pool area to form an annular airflow protective cover to prevent the molten pool from chemically reacting with nitrogen and oxygen in the air, resulting in pores in the weld and metal oxidation brittle cracking. The outer wall of the end of the welding gun body 4 is installed with a protective component 5 for forming a gas hood and preventing sparks from flying.

[0034] A mounting bracket 111 is welded and fixed to the bottom end of the grip body 11, and a reel 12 is rotatably mounted on the end of the mounting bracket 111, and welding wire is wound on the outer wall of the reel 12. Specifically, a rotating shaft is provided at the end of the mounting bracket 111, and a bearing is sandwiched between the outer wall of the rotating shaft and the inner wall of the reel 12. The bearing can reduce the friction generated when the reel 12 rotates, thereby facilitating the transportation of the welding wire. The connecting part 2 includes a plurality of light rods 21, and the front and rear ends of the plurality of light rods 21 are respectively jointly installed with a front end ring 23 and a rear end plate 22. The end of the grip body 11 is coaxially fixedly connected to the rear end plate 22. Specifically, a fixing ring 112 is provided on the front end face of the grip body 11, and the fixing ring 112 is coaxially fixedly installed with the rear end plate 22 by bolts.

[0035] Example 2: Please refer to Figures 2 to 6 , a photovoltaic bracket welding device for building exterior wall renovation, which differs from Example 1 in that the feeding assembly 3 includes a moving ring 31, and a plurality of sliding cylinders 311 are welded and fixed on the outer wall of the moving ring 31 at equal intervals. Two mounting cylinders 312 are symmetrically arranged on the inner wall of the moving ring 31. The mounting cylinders 312 are slidably sleeved on the outer wall of the light rod 21. The inner walls of the two mounting cylinders 312 are slidably mounted with sliding rods 32. The ends of the two sliding rods 32 away from the mounting cylinders 312 are fixedly mounted with rotating frames 321. The inner walls of the two rotating frames 321 are respectively rotatably connected to the driving wheels 33 and the driven wheels 34. The rotating shaft of the driving wheel 33 passes through the side wall of the rotating frame 321 and is coaxially fixed with a stepping motor 35. The welding wire is clamped between the driving wheel 33 and the driven wheel 34. Specifically, the stepping motor 35 is fixedly installed on the side wall of the rotating frame 321 by bolts. The driving wheel 33 is driven to rotate by the stepping motor 35. The driving wheel 33 and the driven wheel 34 jointly send the welding wire to the inside of the welding gun body 4. The ends of the two sliding rods 32 away from the rotating frame 321 are fixedly installed with sliding blocks. Springs 36 are clamped between the two sliding blocks and the inner bottom surfaces of the two mounting cylinders 312. Specifically, the sliding blocks have a limiting effect on the sliding rod 32 to prevent the sliding rod 32 from falling off from the inside of the mounting cylinder 312. The spring 36 releases the elastic force to clamp the welding wire together with the driving wheel 33 and the driven wheel 34 to ensure stable welding wire transportation.

[0036] The protective assembly 5 includes a storage ring 51, which is fixedly mounted on the outer wall of the nozzle of the welding gun body 4. A driving groove 511 is installed on the front end surface of the storage ring 51. Specifically, the storage ring 51 is made of copper and is filled with expansion oil. When the welding gun body 4 is working, the expansion oil inside the storage ring 51 absorbs the heat generated by the nozzle of the welding gun body 4. The expansion oil expands due to the heat and enters the driving groove 511. A driving ring 52 is slidably mounted on the inner wall of the driving groove 511. An annular piston 521 is coaxially fixedly mounted on the rear end surface of the driving ring 52. The annular piston 521 is slidably connected to the inner wall of the driving groove 511. Specifically, the expansion oil inside the storage ring 51 absorbs the heat generated by the nozzle of the welding gun body 4. The expansion oil expands due to the heat and enters the driving groove 511. The expansion oil pushes the annular piston 521 to drive the driving ring 52 to move forward. The front end of the driving ring 52 passes through the front side wall of the driving groove 511 and is connected to a protective cover 53. The rear end surface of the protective cover 53 A sleeve 531 is fixedly installed at the center, and the sleeve 531 is slidably sleeved on the outer wall of the welding gun body 4. The rear end face of the sleeve 531 is fixedly connected to the front end face of the drive ring 52. Specifically, the material of the protective cover 53 is high borosilicate heat-resistant glass. High borosilicate heat-resistant glass has good transparency, and the weld and the molten pool can be clearly observed. At the same time, it can withstand the impact of high-temperature sparks, prevent sparks from flying, and high-temperature slag. At the same time, it has a low thermal expansion coefficient and is not easy to explode. When the welding gun body 4 is working, the expansion oil expands and pushes the annular piston 521 to drive the drive ring 52 to move forward. The drive ring 52 drives the protective cover 53 to move, so that the protective cover 53 is covered around the molten pool. The outer wall of the protective cover 53 is provided with a circle of tiny inclined holes to allow the protective gas to be discharged in an annular direction. After the air flow is rectified by the inclined holes, an annular air curtain is formed on the outer wall of the cover, covering the welding wire outlet and above the molten pool, which is equivalent to forming a gas wind curtain to prevent the molten pool from chemically reacting with nitrogen and oxygen in the air, resulting in pores in the weld and metal oxidation brittle cracking.

[0037] Working Principle: When using this device, the operator holds the handle body 11 and extends the welding gun body 4 to the part of the workpiece to be welded through the connector 2 at the front end of the handle body 11. The outer wall of the connector 2 is slidably mounted with a feeding assembly 3. The feeding assembly 3 is used to stably and continuously feed the welding wire on the coil drum 12 into the welding gun body 4. During the feeding process, the welding wire is clamped by the driving wheel 33 and the driven wheel 34. The stepping motor 35 drives the driving wheel 33 to rotate so that the welding wire is continuously fed forward, ensuring that the welding wire is accurately fed into the molten pool area of ​​the welding gun, thereby improving welding efficiency and quality.

[0038] When the welding wire is almost used up, it is only necessary to slide the movable ring 31 to move the feeding assembly 3 forward on the outer wall of the polished rod 21, thereby improving the utilization rate of the welding wire and saving resources;

[0039] During welding, the welding gun body 4 is connected to the welding machine cable through the conductive nozzle, transmitting current to the end of the welding wire to generate an arc. At the same time, the carbon dioxide gas in the gas cylinder is input into the welding gun through the gas hose and discharged in a ring shape around the nozzle, forming a gas protection curtain covering the molten pool and the welding wire outlet, thereby isolating the nitrogen and oxygen in the air, preventing the formation of pores in the molten pool or metal oxidation, and improving the quality and stability of the weld.

[0040] In order to further enhance welding safety and welding area protection, a protective component 5 is provided on the outer wall of the front end of the welding gun body 4. During welding, the heat released by the welding gun nozzle is absorbed by the expansion oil inside the storage ring 51. After being heated, the expansion oil enters the drive groove 511, and the expansion oil pushes the annular piston 521 and the drive ring 52 in the drive groove 511 to slide forward. The drive ring 52 drives the protective cover 53 to move forward synchronously, and the protective cover 53 slides synchronously along the welding gun nozzle, so that the protective cover 53 automatically covers the molten pool. The protective cover 53 is made of high borosilicate heat-resistant glass, which not only has good transparency, making it convenient for the operator to observe the weld status, but also has high temperature tolerance and impact resistance, which can effectively block high-temperature sparks and slag splashing, protecting the operator. At the same time, the outer wall of the protective cover 53 is provided with a small annular inclined hole, so that the protective gas is rectified through the inclined hole to form a more uniform and stable annular gas curtain outside the cover, further enhancing the gas protection effect in the molten pool area, thereby achieving high-quality, automatic responsive welding operation; at this point, the work of this device is completed.

[0041] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic bracket welding device for building exterior wall reconstruction, comprising a gripping assembly (1), characterized in that: The grip assembly (1) comprises a grip body (11), a connecting piece (2) is fixedly mounted on the front end of the grip body (11), a feeding assembly (3) is slidably mounted on the outer wall of the connecting piece (2), a welding gun body (4) is fixedly mounted on the end of the connecting piece (2) away from the grip body (11), and a protective assembly (5) for forming an air hood and preventing sparks from flying is mounted on the outer wall of the end of the welding gun body (4).

2. A photovoltaic bracket welding device for building exterior wall reconstruction according to claim 1, characterized in that: A mounting frame (111) is welded and fixed to the bottom end of the handle body (11), a coiling drum (12) is rotatably mounted on the end of the mounting frame (111), and welding wire is wound around the outer wall of the coiling drum (12).

3. A photovoltaic bracket welding device for building exterior wall reconstruction according to claim 2, characterized in that: The connecting member (2) comprises a plurality of polished rods (21), the front and rear ends of the plurality of polished rods (21) being respectively mounted with a front ring (23) and a rear plate (22), and the end of the handle body (11) being coaxially fixedly connected to the rear plate (22).

4. A photovoltaic bracket welding device for building exterior wall reconstruction according to claim 1, characterized in that: The feeding assembly (3) comprises a moving ring (31), a plurality of sliding cylinders (311) are welded and fixed at equal intervals on the outer wall of the moving ring (31), two mounting cylinders (312) are symmetrically arranged on the inner wall of the moving ring (31), the mounting cylinders (312) are slidably sleeved on the outer wall of the light rod (21), the inner walls of the two mounting cylinders (312) are slidably mounted with sliding rods (32), the ends of the two sliding rods (32) away from the mounting cylinders (312) are fixedly mounted with rotating frames (321), and the inner walls of the two rotating frames (321) are rotatably connected to the driving wheel (33) and the driven wheel (34).

5. A photovoltaic bracket welding device for building exterior wall reconstruction according to claim 4, characterized in that: The rotating shaft of the driving wheel (33) passes through the side wall of the rotating frame (321) and is coaxially fixedly mounted with a stepping motor (35). The welding wire is clamped between the driving wheel (33) and the driven wheel (34).

6. A photovoltaic bracket welding device for building exterior wall reconstruction according to claim 5, characterized in that: Sliding blocks are fixedly mounted on the ends of the two sliding rods (32) away from the rotating frame (321), and springs (36) are sandwiched between the two sliding blocks and the inner bottom surfaces of the two mounting cylinders (312).

7. A photovoltaic bracket welding device for building exterior wall reconstruction according to claim 1, characterized in that: The protective assembly (5) comprises a storage ring (51), the storage ring (51) being fixedly mounted on the outer wall of the nozzle of the welding gun body (4), and a driving groove (511) being mounted on the front end surface of the storage ring (51).

8. A photovoltaic bracket welding device for building exterior wall reconstruction according to claim 7, characterized in that: A driving ring (52) is slidably mounted on the inner wall of the driving groove (511), and an annular piston (521) is coaxially fixedly mounted on the rear end face of the driving ring (52). The annular piston (521) is slidably connected to the inner wall of the driving groove (511). The front end of the driving ring (52) passes through the front side wall of the driving groove (511) and is connected to the protective cover (53). A sleeve (531) is fixedly mounted at the center of the rear end face of the protective cover (53). The sleeve (531) is slidably sleeved on the outer wall of the nozzle of the welding gun body (4), and the rear end face of the sleeve (531) is fixedly connected to the front end face of the driving ring (52).

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