Photovoltaic spiral ground pile blade welding assembly

Abstract

The utility model belongs to the technical field of welding equipment, and particularly relates to a photovoltaic spiral ground pile blade welding assembly which comprises a rack and a plurality of welding units, and the welding units are arranged at intervals and movably assembled on the rack. The welding unit comprises a welding gun, an outer mounting seat, an inner mounting seat capable of ascending and descending relative to the rack, a floating compensation mechanism and a follow-up assembly; the welding gun is installed on the outer installation base through an adjusting assembly capable of adjusting the angle and the position of the welding gun. The outer mounting seat is in sliding fit with the inner mounting seat, and the floating compensation mechanism is connected between the outer mounting seat and the inner mounting seat; the follow-up assembly is installed on the outer installation base and comprises at least one guide piece used for making contact with the spiral blade. The floating compensation mechanism is used for driving the guiding piece to make contact with the spiral blade all the time in the spiral blade rotating process so as to drive the outer mounting base to move under pushing of the spiral blade, and the distance between the head of the welding gun and the spiral blade is automatically compensated. The automatic welding device can realize automatic welding and ensure the welding quality.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of welding equipment, concretely relates to a photovoltaic spiral ground pile blade welding assembly. BACKGROUND

[0002] The photovoltaic spiral ground pile is a kind of foundation fixing device specially used for solar photovoltaic support system, which usually adopts pile body with pointed end, and connects spiral blade on the pile body, penetrates soil layer by rotating and pressing down through pile driver, forms anchoring force to constrain ground pile from separating from ground, does not need concrete pouring, and is convenient to install.

[0003] When the photovoltaic spiral ground pile is produced and manufactured, a ground pile pipe body with pointed end at front end needs to be processed first, and then 2-3 separate spiral blades are welded on the outer wall of the ground pile pipe body, so that the photovoltaic spiral ground pile can drill into ground smoothly, and the photovoltaic spiral ground pile is prevented from separating from ground. Therefore, the manufacture of the photovoltaic spiral ground pile needs to use related welding equipment.

[0004] The prior art welding equipment for photovoltaic spiral pile manufacturing, such as the spiral pile welding machine disclosed in the Chinese utility model patent with the publication number CN221454744U, is provided with a guide rail on the top of the frame, a plurality of guide wheel support frames and a plurality of welding assemblies are arranged on the guide rail; the guide wheel support frame is provided with a guide wheel, the guide wheel is used to support and drive the rolling of the pile pipe body, and a pile extruding device is arranged in cooperation with the guide wheel support frame to fix the pile pipe body; the welding assembly is provided with a welding gun holder towards the guide wheel, the bottom of the welding gun holder is provided with a longitudinal moving guide device, the top of the longitudinal moving guide device is provided with a longitudinal moving support plate, and a longitudinal driving device is arranged on the longitudinal moving support plate; the top of the longitudinal moving support plate is provided with a transverse moving guide device, the transverse moving guide device is provided with a transverse moving support plate, and a fixed pile is arranged on the transverse moving support plate, the fixed pile is provided with a welding gun support seat through an adjusting block, a welding gun locking block is hingedly fixed on the welding gun support seat, and a welding gun is fixed on the welding gun locking block. When the above-mentioned spiral pile welding machine works, the spiral pile is positioned and pre-fixed with the spiral blade, the driving motor drives the spiral blade and the spiral pile to rotate synchronously, at the same time of rotation, the longitudinal driving device drives the longitudinal moving support plate and the transverse moving support plate thereon to move together, thereby realizing the adjustment of the position of the welding gun head. However, since the transverse moving support plate is not powered, when the longitudinal driving device drives the longitudinal moving support plate to move, the transverse moving support plate is fixed relative to the position of the longitudinal moving support plate, at this time, the welding gun head only performs the position adjustment in the longitudinal direction; the transverse position of the welding gun head needs to be adjusted by manually pushing the fixed pile to move the transverse moving support plate on the longitudinal moving support plate. During the rotation of the spiral blade, the welding position of the spiral blade and the pile pipe body also changes, and the transverse position of the welding gun head needs to be constantly adjusted by manual operation to make the welding gun head follow the rotation of the spiral blade at all times, but this way is troublesome, low in efficiency, and prone to misalignment of the welding gun head and the weld, and it is difficult to guarantee the welding quality. Utility model content

[0005] The utility model discloses a photovoltaic spiral pile blade welding assembly, which solves the technical problem that the existing pile welding equipment is troublesome to operate and the welding quality is difficult to guarantee.

[0006] To solve the above problems, the photovoltaic spiral pile blade welding assembly provided by the utility model adopts the following technical scheme:

[0007] The photovoltaic spiral pile blade welding assembly comprises a rack and a plurality of welding units, and the plurality of welding units are arranged at intervals in the direction parallel to the axis of the spiral blade and movably assembled on the rack.

[0008] The welding unit includes a welding torch, an outer mounting base, an inner mounting base that can be raised and lowered relative to the frame, a floating compensation mechanism, and a follower assembly. The welding torch is mounted on the outer mounting base via an adjustment assembly that can adjust the angle and position of the welding torch. The outer mounting base and the inner mounting base are slidably fitted in a direction parallel to the axis of the spiral blade, and the floating compensation mechanism is connected between the outer mounting base and the inner mounting base. The follower assembly is mounted on the outer mounting base and includes at least one guide for contacting the spiral blade. The floating compensation mechanism is used to drive the guide to always be in contact with the spiral blade during the rotation of the spiral blade, so as to drive the outer mounting base to move under the push of the spiral blade and automatically compensate for the distance between the head of the welding torch and the spiral blade.

[0009] The beneficial effects of this invention are as follows: Before welding the spiral blades, the height of the inner mounting base and the angle and position of the welding torch and guide are adjusted by adjusting the components to ensure the welding torch is aligned with the weld seam and at least one guide is in contact with the spiral blade. During welding, the spiral blade rotates, generating an axial thrust on the guide in contact with it, which in turn causes the outer mounting base to slide relative to the inner mounting base. However, under the action of the floating compensation mechanism, the guide is always kept in contact with the side of the spiral blade. That is, under the action of the floating compensation mechanism, the welding torch can always follow the weld seam, keeping the distance between the head of the welding torch and the spiral blade consistent, thereby ensuring welding quality. Compared with the prior art, this invention can automatically compensate for the distance between the head of the welding torch and the spiral blade, ensuring welding quality; during the welding process, there is no need to manually adjust the horizontal position of the welding torch, realizing automatic welding operation.

[0010] Furthermore, the floating compensation mechanism is an elastic mechanism, including a first connecting seat, a second connecting seat, a guide shaft, and a compression spring. Two first connecting seats are provided in parallel and are fixed on the inner mounting seat. The second connecting seat is fixed on the outer mounting seat. The guide shaft connects the two first connecting seats. The compression spring is sleeved on the guide shaft, with one end abutting against one of the first connecting seats and the other end abutting against the second connecting seat. The second connecting seat slides with the guide shaft in a direction parallel to the axis of the helical blade.

[0011] Beneficial effects: The floating compensation mechanism adopts the form of an elastic mechanism, which has a simple structure, occupies little space, and makes the overall structure more compact after installation; in addition, the elastic mechanism can quickly respond to changes in external forces and adjust the force output rapidly through elastic deformation; the elastic mechanism also has good buffering and vibration absorption functions.

[0012] Furthermore, the inner mounting base is provided with buffers on both sides of the outer mounting base.

[0013] Beneficial effects: When the external mount needs to be reset, the buffer can help to smoothly release the energy of the spring, avoiding shocks and vibrations caused by excessive speed during the reset process of the external mount.

[0014] Furthermore, the follower assembly also includes a follower shaft and a mounting shaft. The mounting shaft is rotatably mounted on the outer mounting base about an axis perpendicular to the sliding direction of the outer mounting base. The follower shaft is mounted perpendicularly to the mounting shaft. A clamp is connected to the end of the follower shaft, and the guide is fixed on the clamp.

[0015] Beneficial effects: It helps to make reasonable use of the installation space on the external mounting base, reduce the size of the adjustment shaft, provide more room for the adjustment shaft to move, and avoid interference with other structures on the external mounting base due to excessively long guide parts.

[0016] Furthermore, there are two guide members, symmetrically arranged on both sides of the follower shaft in the radial direction.

[0017] Beneficial effects: During the rotation of the helical blades, the two guides can make more stable contact, thereby achieving a more uniform force transmission and ensuring smooth sliding of the external mounting base.

[0018] Furthermore, the welding unit also includes a base and a power mechanism fixed on the base. The inner mounting seat is movably assembled on the base in the vertical direction. The base and the frame are movably assembled in a direction parallel to the axis of the spiral blade. The power mechanism is driven by the frame to drive the welding unit to move horizontally.

[0019] Beneficial effects: Each welding unit is equipped with a power mechanism, which can independently adjust the horizontal position of each welding unit on the frame to adapt to different installation positions of the spiral blades. At the same time, it can meet the position adjustment requirements of the welding unit when the machining error between different spiral blades is large.

[0020] Furthermore, the power mechanism includes a servo motor and a gear and rack transmission structure. The gear and rack transmission structure includes a rack fixed on the frame and a gear fixed on the output end of the servo motor, with the gear meshing with the rack.

[0021] Beneficial effects: When the gear and rack mesh, the transmission efficiency is high, the positioning accuracy is high, and the distance of movement of the welding unit can be precisely controlled.

[0022] Furthermore, a lifting drive component is installed on the base, and the output end of the lifting drive component is connected to the inner mounting base.

[0023] Beneficial effect: The internal mounting base can automatically raise and lower without the need for manual adjustment.

[0024] Furthermore, two welding torches are provided, with the two welding torches located on both sides of the follower assembly; the adjustment assembly includes a horizontal adjustment mechanism, a vertical adjustment mechanism, and an angle adjustment mechanism installed on the outer mounting base and corresponding to the two welding torches. The vertical adjustment mechanism is installed on the horizontal adjustment mechanism, and the angle adjustment mechanism is installed on the vertical adjustment mechanism; the horizontal adjustment mechanism is used to adjust the horizontal position of the welding torch, the vertical adjustment mechanism is used to adjust the vertical position of the welding torch, and the angle adjustment mechanism is used to adjust the installation angle of the welding torch.

[0025] Beneficial effects: The horizontal adjustment mechanism, vertical adjustment mechanism and angle adjustment mechanism for each welding torch are integrated together, making the overall structure more compact and making reasonable use of the installation space on the external mounting base.

[0026] Furthermore, a connecting shaft is vertically fixed on the external mounting base, and an arc baffle is connected to the end of the connecting shaft.

[0027] Beneficial effects: Arc flash shields can block the arc light generated during welding, effectively protecting operators. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the photovoltaic spiral ground pile blade welding assembly of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of each welding unit in the photovoltaic spiral ground pile blade welding assembly of this utility model;

[0030] Figure 3 for Figure 2 The main view;

[0031] Figure 4 This is a schematic diagram of the servo component.

[0032] Figure 5 This is a schematic diagram of a floating compensation mechanism;

[0033] Figure 6 for Figure 4 A schematic diagram excluding the external mounting base, buffer, and buffer mounting plate.

[0034] Figure 7 This is a schematic diagram of the assembly between the base and the lifting cylinder;

[0035] Figure 8 A schematic diagram showing the first-person view of the welding torch adjustment assembly;

[0036] Figure 9 A schematic diagram showing the second perspective of the welding torch adjustment assembly;

[0037] Figure 10 To show the structural diagram of the power mechanism;

[0038] Figure 11 This is a schematic diagram of the grounding mechanism.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Welding unit; 2. Frame; 11. Base; 12. Lifting cylinder; 13. Inner mounting seat; 14. Outer mounting seat; 15. First welding torch; 16. Floating compensation mechanism; 161. First connecting seat; 162. Second connecting seat; 163. Guide shaft; 164. Compression spring; 165. Buffer mounting plate; 166. Buffer; 17. Power mechanism; 171. Power motor; 172. Gear; 173. Motor plate; 18. Follower assembly; 181. Follower plate; 182. Mounting shaft; 183. Follower shaft; 184. Clamping plate; 185. Guide component; 19. First lifting manual adjustment mechanism; 191. First fixing block; 192. First lead screw; 193. First guide slide shaft; 194. First handwheel; 195. First slider; 20. Horizontal manual adjustment mechanism; 201. Horizontal fixing plate; 202. Third fixing... 203. Third lead screw; 204. Third guide slide shaft; 205. Third handwheel; 206. Third slider; 21. Automatic horizontal adjustment mechanism; 211. Clamping cylinder; 212. Welding torch clamping plate; 22. Second welding torch; 23. Second manual lifting adjustment mechanism; 231. Second fixing block; 232. Second lead screw; 233. Second guide slide shaft; 234. Second handwheel; 235. Second slider; 24. 25. First welding torch adapter plate; 26. First welding torch clamp; 27. Second welding torch adapter plate; 28. Second welding torch clamp; 29. ​​Arc flash baffle; 20. Grounding mechanism; 291. Grounding bracket; 292. Grounding mounting sheet metal; 293. Copper brush; 294. Arc groove; 295. Guide rod; 296. Linear bearing; 30. Crossbeam; 31. Through rail; 32. Rack; 33. Vertical slide rail; 34. Cylinder adapter plate. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0042] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0043] Example 1 of the photovoltaic helical ground pile blade welding assembly provided by this utility model:

[0044] like Figure 1 As shown, the photovoltaic spiral ground pile blade welding assembly includes a frame 2 and multiple welding units 1 movably mounted on the frame 2. The welding units 1 are used to weld the spiral blades onto the ground pile tube.

[0045] For ease of description, in this embodiment, the direction of movement of welding unit 1 is defined as the left-right direction.

[0046] Specifically, the frame 2 includes a crossbeam 30 extending in the left-right direction, on which two parallel rails 31 are fixedly installed, extending in the left-right direction. Welding units 1 are movably assembled on the rails 31 in the left-right direction, and the number of welding units 1 is the same as the number of spiral blades to be welded on the same ground pile pipe.

[0047] In this embodiment, as Figure 2 and Figure 3 As shown, each welding unit 1 includes a base 11, an outer mounting base 14, an inner mounting base 13, a floating compensation mechanism 16, a follower assembly 18, a power mechanism 17, and a welding torch. The base 11 slides in the left-right direction with the guide rail 31; the power mechanism 17 is fixed to the base 11 via a power adapter plate. Figure 10 As shown, the power mechanism 17 includes a motor plate 173 connected to the power adapter plate, a power motor 171 mounted on the motor plate 173, and a gear 172 mounted on the output shaft of the power motor 171. The power motor 171 is a servo motor. A rack 32 that meshes with the gear 172 is mounted on the crossbeam 30. When the power motor 171 starts, the gear 172 meshes with the rack 32, allowing the base 11 to move left and right on the guide rail 31, thereby realizing the left and right position adjustment of the entire welding unit 1 on the guide rail 31. A limit sensor is installed at the right end of the guide rail 31 to detect whether the power mechanism 17 at the right end moves beyond its operating range, preventing it from falling off.

[0048] like Figure 7 As shown, the base 11 is provided with two vertical slide rails 33 arranged parallel to each other on the left and right, and the inner mounting seat 13 is slidably mounted on the two vertical slide rails 33. A lifting cylinder 12 is provided on the base 11 above the inner mounting seat 13. The piston rod end of the lifting cylinder 12 is connected to a cylinder adapter plate 34, which is connected to the inner mounting seat 13, thereby realizing the lifting and lowering of the inner mounting seat 13 through the lifting cylinder 12. Of course, in other embodiments, the lifting cylinder 12 can also be replaced by an electric push rod.

[0049] like Figure 5 and Figure 6As shown, the inner mounting base 13 is provided with two horizontal slide rails arranged parallel to each other vertically, and the outer mounting base 14 is slidably mounted on the two horizontal slide rails. A floating compensation mechanism 16 is disposed between the inner mounting base 13 and the outer mounting base 14, and includes a first connecting seat 161, a second connecting seat 162, a guide shaft 163, and a compression spring 164. Two first connecting seats 161 are arranged parallel to each other horizontally and are both fixed to the inner mounting base 13. The second connecting seat 162 is fixed to the outer mounting base 14. The guide shaft 163 connects the two first connecting seats 161. The compression spring 164 is sleeved on the guide shaft 163, with one end abutting against one of the first connecting seats 161 and the other end abutting against the second connecting seat 162. The second connecting seat 162 slides in cooperation with the guide shaft 163 in the left-right direction. Buffers 166 are fixed to the left and right ends of the outer mounting base 14 via buffer mounting plates 165 on the inner mounting base 13, so as to buffer and limit the outer mounting base 14 when it moves left and right relative to the inner mounting base 13.

[0050] like Figure 4 As shown, the follower assembly 18 is integrally mounted on the outer mounting base 14, including a follower plate 181, a mounting shaft 182, a follower shaft 183, a clamping plate 184, and a guide 185. The follower plate 181 is fixed to the outer mounting base 14 and its installation height can be adjusted. The mounting shaft 182 is rotatably mounted on the follower plate 181 about an axis extending in the front-rear direction. The follower shaft 183 passes perpendicularly through the mounting shaft 182 and is fixed to the mounting shaft 182 by bolts. The clamping plate 184 is fixed to the lower end of the follower shaft 183. The guide 185 is a single shaft, and there are two of them, symmetrically arranged on both radial sides of the follower shaft 183. The guide 185 is fixed by the clamping plate 184. The guide 185 can rotate under the action of the mounting shaft 182. Before welding the blade, the angle and position of the guide 185 are adjusted and locked so that the guide 185 abuts against the side of the helical blade and its end contacts the ground pile pipe. The guide 185 is not limited to the form of a shaft, but can also be a guide wheel, block or other structure.

[0051] like Figure 3 As shown, there are two welding torches: a first welding torch 15 and a second welding torch 22. Figure 2 , Figure 8 and Figure 9As shown, the outer mounting base 14 is provided with a horizontal automatic adjustment mechanism 21. The horizontal automatic adjustment mechanism 21 includes a clamping cylinder 211 and a welding torch clamping plate 212 connected to the end of the piston rod of the clamping cylinder 211. The welding torch clamping plate 212 is slidably assembled with the outer mounting base 14 in the left-right direction to adjust the position of the first welding torch 15 in the left-right direction. A first lifting manual adjustment mechanism 19 is installed on the welding torch clamping plate 212. The first lifting manual adjustment mechanism 19 is a screw and nut mechanism, including two first fixed blocks 191 arranged parallel to each other, a first screw 192 rotatably assembled on one of the first fixed blocks 191, two first guide shafts 193 symmetrically arranged on the left and right sides of the first screw 192, a first handwheel 194 connected to the upper end of the first screw 192, and a first slider 195 located between the two first fixed blocks 191 and threadedly connected to the first screw 192. The first slider 195 and the first guide shaft 193 slide in the up-down direction. A first welding torch adapter plate 24 is connected to the first slider 195, and the mounting height of the first welding torch adapter plate 24 on the first slider 195 is adjustable. A first welding torch clamping block 25 is rotatably mounted on the first welding torch adapter plate 24 about an axis extending in the front-rear direction. The first welding torch clamping block 25 is used to clamp the first welding torch 15. The first welding torch clamping block 25 can adjust the angle of the first welding torch 15, the lifting manual adjustment mechanism can finely adjust the height of the first welding torch 15, the first welding torch adapter plate 24 can coarsely adjust the height of the first welding torch 15, and the clamping cylinder 211 can coarsely adjust the left and right position of the first welding torch 15.

[0052] A second lifting manual adjustment mechanism 23 is installed on the outer mounting base 14 near the buffer mounting plate of the power motor 171. The second lifting manual adjustment mechanism 23 has the same structure as the first lifting manual adjustment mechanism 19, including two second fixed blocks 231 arranged parallel to each other, a second lead screw 232 rotatably assembled between one of the second fixed blocks 231, two second guide shafts 233 symmetrically arranged on the left and right sides of the second lead screw 232, a second handwheel 234 connected to the upper end of the second lead screw 232, and a second slider 235 located between the two second fixed blocks 231 and threadedly connected to the second lead screw 232. The second slider 235 and the second guide shaft 233 slide in the vertical direction. A horizontal manual adjustment mechanism 20 is installed on the second slider 235. This mechanism is also a screw-nut transmission mechanism, comprising a horizontal fixed plate 201 fixed to the second slider 235, third fixed blocks 202 parallel to each other on the horizontal fixed plate 201, a third screw 203 rotatably mounted on one of the third fixed blocks 202, two third guide shafts 204 symmetrically arranged on the upper and lower sides of the third screw 203, a third handwheel 205 connected to the left end of the third screw 203, and a third slider 206 located between the two third fixed blocks 202 and threadedly connected to the third screw 203. A second welding torch adapter plate 26 is connected to the third slider 206, and the mounting height of the second welding torch adapter plate 26 on the third slider 206 is adjustable. A second welding torch clamping block 27 is rotatably mounted on the second welding torch adapter plate 26 about an axis extending in the front-back direction. The second welding torch clamping block 27 is used to clamp the second welding torch 22. The second welding torch clamp 27 can adjust the angle of the second welding torch 22, the second lifting manual adjustment mechanism 23 can finely adjust the height of the second welding torch 22, the second welding torch adapter plate 26 can coarsely adjust the height of the second welding torch 22, and the horizontal manual adjustment mechanism 20 can finely adjust the left and right positions of the second welding torch 22.

[0053] Each external mounting bracket 14 is also connected to a fixed shaft extending in the front-to-back direction, and the end of the fixed shaft is connected to two hinged arc-shaped baffles 28, such as... Figure 1 As shown, the arc flash baffle 28 is used to block the welding arc light and reduce arc light hazards. Figure 10 As shown, each welding unit 1 is also equipped with two grounding mechanisms 29, such as Figure 11 As shown, the grounding mechanism 29 includes a grounding bracket 291 fixed to the outer mounting base 14, a grounding mounting sheet metal 292 fixed to the grounding bracket 291, and a copper brush 293 for contacting the grounding pile pipe. The copper brush 293 has an arc-shaped groove 294 adapted to the shape of the grounding pile pipe. A guide rod 295 is connected to the copper brush 293, and a linear bearing 296 is provided on the grounding mounting sheet metal 292 to guide and cooperate with the guide rod 295. During the welding process, the copper brush 293 is kept in contact with the grounding pile pipe at all times to ensure that the welding grounding wire is connected.

[0054] The working process of the photovoltaic spiral ground pile blade welding assembly of this utility model is as follows:

[0055] Welding unit 1, with its welding torch angle and height pre-adjusted, moves along rail 31 to the corresponding helical blade under the action of power mechanism 17. Two guides 185 abut against the sides of the helical blade and contact the surface of the ground pile pipe. The ground pile pipe and helical blade are positioned by external positioning mechanism and driven to rotate by corresponding drive structure. The two welding torches first spot weld the helical blade. During spot welding, the compression spring 164 is in a compressed state. After spot welding, the position of the helical blade is fixed. Then, each welding unit 1 is positioned, and the ground pile pipe rotates at the same time. The two welding torches then perform further welding. Because the helical blades are helical, the contact position between the guide 185 and the helical blades changes as the pile pipe rotates. The rotating helical blades exert a force on the guide 185, but under the elastic force of the compression spring 164, the guide 185 remains in contact with the helical blades. This force is transmitted to the outer mounting base 14 through the guide 185, causing the outer mounting base 14 to move the two welding torches synchronously. This automatically compensates for the distance between the heads of the two welding torches and the welding position, ensuring that the two welding torches always follow the welding position, thus ensuring that the heads of the two welding torches are always aligned with the welding position. After the welding operation is completed, the lifting cylinder 12 drives the inner mounting base 13 to rise, unlocking the pile pipe and allowing the next welding operation to proceed. This achieves automated welding of the pile pipe and the blades, ensuring welding quality.

[0056] Embodiment 2 of the photovoltaic spiral ground pile blade welding assembly provided by this utility model:

[0057] Its main difference from Example 1 is:

[0058] In Example 1, each welding unit is equipped with a power mechanism.

[0059] In this embodiment, all welding units share a single power mechanism, which still employs a combination of a motor and a rack and pinion transmission structure. This power mechanism is mounted on the frame, connecting the bases of each welding unit via a long rack. The gear meshes with the rack, allowing each welding unit to move synchronously left and right. Alternatively, in other embodiments, the power mechanism can be a lead screw and nut mechanism, with a lead screw rotatably mounted on the frame and a slider fixed to each base, the slider being threadedly connected to the lead screw.

[0060] Embodiment 3 of the photovoltaic helical ground pile blade welding assembly provided by this utility model:

[0061] Its main difference from Example 1 is:

[0062] In Example 1, the floating compensation mechanism adopts an elastic mechanism.

[0063] In this embodiment, the floating compensation mechanism is driven by a non-contact sensor. Non-contact measurement methods such as laser rangefinders, ultrasonic sensors, or infrared sensors are used to monitor the distance between the welding torch and the workpiece in real time. Based on the distance signal fed back by the sensor, the position of the welding torch is adjusted in real time by a control mechanism (such as an electric or pneumatic actuator).

[0064] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "back," "left," "right," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0065] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

[0066] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A photovoltaic helical ground pile blade welding assembly, characterized in that, It includes a frame and multiple welding units, which are spaced apart and movably assembled on the frame in a direction parallel to the axis of the propeller blade; The welding unit includes a welding torch, an outer mounting base, an inner mounting base that can be raised and lowered relative to the frame, a floating compensation mechanism, and a follow-up component; The welding torch is mounted on the outer mounting base via an adjustment assembly that can adjust the angle and position of the welding torch; the outer mounting base and the inner mounting base are slidably engaged in a direction parallel to the axis of the spiral blade, and a floating compensation mechanism is connected between the outer mounting base and the inner mounting base; the follower assembly is mounted on the outer mounting base and includes at least one guide for contacting the spiral blade; the floating compensation mechanism is used to drive the guide to always be in contact with the spiral blade during the rotation of the spiral blade, so as to drive the outer mounting base to move under the push of the spiral blade and automatically compensate for the distance between the head of the welding torch and the spiral blade.

2. The photovoltaic spiral ground pile blade welding assembly according to claim 1, characterized in that, The floating compensation mechanism is an elastic mechanism, including a first connecting seat, a second connecting seat, a guide shaft, and a compression spring. Two first connecting seats are provided in parallel and are fixed on the inner mounting seat. The second connecting seat is fixed on the outer mounting seat. The guide shaft connects the two first connecting seats. The compression spring is sleeved on the guide shaft, with one end abutting against one of the first connecting seats and the other end abutting against the second connecting seat. The second connecting seat slides with the guide shaft in a direction parallel to the axis of the helical blade.

3. The photovoltaic spiral ground pile blade welding assembly according to claim 2, characterized in that, The inner mounting base is provided with buffers on both sides of the outer mounting base.

4. The photovoltaic helical ground pile blade welding assembly according to claim 1, characterized in that, The follower assembly also includes a follower shaft and a mounting shaft. The mounting shaft is rotatably mounted on the outer mounting base about an axis perpendicular to the sliding direction of the outer mounting base. The follower shaft is mounted perpendicularly to the mounting shaft. A clamp is connected to the end of the follower shaft, and the guide is fixed on the clamp.

5. The photovoltaic helical ground pile blade welding assembly according to claim 4, characterized in that, Two guide members are provided, symmetrically arranged on both radial sides of the follower shaft.

6. The photovoltaic helical ground pile blade welding assembly according to any one of claims 1-5, characterized in that, The welding unit also includes a base and a power mechanism fixed on the base. The inner mounting seat is movably assembled on the base in the vertical direction. The base and the frame are movably assembled in a direction parallel to the axis of the spiral blade. The power mechanism is driven by the frame to drive the welding unit to move horizontally.

7. The photovoltaic helical ground pile blade welding assembly according to claim 6, characterized in that, The power mechanism includes a servo motor and a gear and rack transmission structure. The gear and rack transmission structure includes a rack fixed on the frame and a gear fixed on the output end of the servo motor, with the gear meshing with the rack.

8. The photovoltaic spiral ground pile blade welding assembly according to claim 6, characterized in that, A lifting drive component is installed on the base, and the output end of the lifting drive component is connected to the inner mounting base.

9. The photovoltaic helical ground pile blade welding assembly according to any one of claims 1-5, characterized in that, Two welding torches are provided, with each torch located on one side of the follower assembly. The adjustment assembly includes a horizontal adjustment mechanism, a vertical adjustment mechanism, and an angle adjustment mechanism, all mounted on the outer mounting base and corresponding to the two welding torches. The vertical adjustment mechanism is mounted on the horizontal adjustment mechanism, and the angle adjustment mechanism is mounted on the vertical adjustment mechanism. The horizontal adjustment mechanism is used to adjust the horizontal position of the welding torch, the vertical adjustment mechanism is used to adjust the vertical position of the welding torch, and the angle adjustment mechanism is used to adjust the installation angle of the welding torch.

10. The photovoltaic helical ground pile blade welding assembly according to any one of claims 1-5, characterized in that, A connecting shaft is vertically fixed on the external mounting base, and an arc baffle is connected to the end of the connecting shaft.

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