Photovoltaic spiral ground pile blade welding assembly

Abstract

The invention 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. Automatic welding can be achieved, and the welding quality is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, and in particular relates to a photovoltaic spiral ground pile blade welding assembly. Background Art

[0002] Photovoltaic spiral ground piles are a type of foundation fixing device specially used for solar photovoltaic support systems. They usually use a pile body with a pointed end and a spiral blade connected to the pile body. The pile driver rotates and presses down to penetrate the soil layer, forming an anchoring force to prevent the pile from detaching from the ground. No concrete pouring is required, and the installation is convenient.

[0003] When manufacturing photovoltaic spiral ground piles, it is necessary to first process a ground pile tube with a pointed front end, and then weld 2 to 3 separate spiral blades on the outer wall of the ground pile tube, so that the photovoltaic spiral ground pile can be drilled into the ground smoothly and prevent the photovoltaic spiral ground pile from falling out of the ground. Therefore, the manufacture of photovoltaic spiral ground piles requires the use of relevant welding equipment.

[0004] The welding equipment used for manufacturing photovoltaic spiral ground piles in the prior art is, for example, a spiral ground pile welding machine disclosed in the Chinese utility model patent with authorization announcement number CN221454744U, which is provided with a guide track on the top of the frame, and a plurality of guide wheel support frames and a plurality of welding assemblies are provided on the guide track; a guide wheel is provided on the guide wheel support frame, and the support and rolling drive of the ground pile pipe body are realized by the guide wheel, and a ground pile squeezing device is provided in conjunction with the guide wheel support frame to realize the fixation of the ground pile pipe body; a welding gun frame is provided on the welding assembly facing the guide wheel, a longitudinal guide device is provided at the bottom of the welding gun frame, a longitudinal support plate is provided at the top of the longitudinal guide device, and a longitudinal driving device is provided on the longitudinal support plate; a transverse guide device is provided at the top of the longitudinal support plate, a transverse support plate is provided on the transverse guide device, a fixed pile is provided on the transverse support plate, a welding gun support seat is provided on the fixed pile through an adjustment 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 ground pile welding machine is working, the spiral ground pile is positioned and pre-fixed with the spiral blade in advance, and the driving motor drives the spiral blade and the spiral ground pile to rotate synchronously. While rotating, the longitudinal driving device drives the longitudinal support plate and the transverse support plate thereon to move together, thereby adjusting the position of the welding gun head. However, since the transverse support plate has no power drive, when the longitudinal driving device drives the longitudinal support plate to move, the transverse support plate is fixed relative to the longitudinal support plate. At this time, the welding gun head only adjusts its position in the longitudinal direction; it is necessary to manually push the fixed pile so that the transverse support plate moves on the longitudinal support plate to adjust the transverse position of the welding gun head. During the rotation of the spiral blade, the welding position of the spiral blade and the ground pile pipe body also changes accordingly. It is necessary to manually adjust the transverse position of the welding gun head so that the welding gun head always follows the rotation of the spiral blade. However, this method is cumbersome to operate, inefficient, and prone to misalignment of the welding gun head and the weld, making it difficult to ensure the welding quality. Summary of the invention

[0005] The purpose of the present invention is to provide a photovoltaic spiral ground pile blade welding assembly to solve the technical problems that the existing ground pile welding equipment is difficult to operate and the welding quality is difficult to ensure.

[0006] In order to solve the above problems, the present invention provides a photovoltaic spiral pile blade welding assembly adopting the following technical solutions: A photovoltaic spiral pile blade welding assembly comprises a frame and a plurality of welding units, wherein the plurality of welding units are arranged at intervals in a direction parallel to the spiral blade axis and are movably assembled on the frame; The welding unit includes a welding gun, an outer mounting seat, an inner mounting seat that can be raised and lowered relative to a frame, a floating compensation mechanism and a follower assembly; the welding gun is mounted on the outer mounting seat by an adjustment assembly that can adjust the angle and position of the welding gun; the outer mounting seat and the inner mounting seat are slidably matched in a direction parallel to the axis of the spiral blade, and the floating compensation mechanism is connected between the outer mounting seat and the inner mounting seat; the follower assembly is mounted on the outer mounting seat and includes at least one guide member for contacting the spiral blade; the floating compensation mechanism is used to drive the guide member to always contact the spiral blade during the rotation of the spiral blade, so as to drive the outer mounting seat to move under the push of the spiral blade, and automatically compensate for the distance between the head of the welding gun and the spiral blade. The beneficial effects of the present invention are as follows: before welding the spiral blade, the height of the inner mounting seat is adjusted and the angle and position of the welding gun and the guide are adjusted by adjusting the assembly, so that the welding gun is aligned with the weld 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, thereby driving the outer mounting seat to slide relative to the inner mounting seat, but under the action of the floating compensation mechanism, the guide can always be kept in contact with the side of the spiral blade, that is, the welding gun can always follow the weld under the action of the floating compensation mechanism, keeping the distance between the head of the welding gun and the spiral blade consistent, thereby ensuring the welding quality. Compared with the prior art, the present invention can automatically compensate for the distance between the head of the welding gun and the spiral blade, ensuring the quality of welding; during the welding process, there is no need to manually adjust the horizontal position of the welding gun, thus realizing automatic welding operation.

[0007] 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 arranged in parallel and spaced apart and are both 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 spiral blade.

[0008] Beneficial effects: The floating compensation mechanism adopts the form of an elastic mechanism, which has a simple structure, occupies a small space, and has a more compact overall structure after installation; in addition, the elastic mechanism can quickly respond to changes in external forces and quickly adjust the output of force through elastic deformation; the elastic mechanism also has good buffering and vibration absorption functions.

[0009] Furthermore, buffers are respectively provided on both sides of the inner mounting seat and the outer mounting seat.

[0010] Beneficial effect: When the outer mounting seat needs to be reset, the buffer can help to smoothly release the energy of the spring, avoiding the impact and vibration caused by the excessive speed during the reset process of the outer mounting seat.

[0011] Furthermore, the follower assembly also includes a follower shaft and an installation shaft. The installation shaft is assembled on the outer mounting seat and rotates around an axis perpendicular to the sliding direction of the outer mounting seat. The follower shaft is installed perpendicularly to the installation shaft. The end of the follower shaft is connected to a clamping plate, and the guide member is fixed on the clamping plate.

[0012] Beneficial effects: It is conducive to the rational use of the installation space on the outer mounting seat, reducing the size of the adjustment shaft, providing a larger activity space for the adjustment shaft, and avoiding the interference of the guide member with other structures on the outer mounting seat due to being too long.

[0013] Furthermore, two guide members are provided and are symmetrically arranged on both sides of the follower shaft in the radial direction.

[0014] Beneficial effect: During the rotation of the spiral blade, the two guide members can be in more stable contact, thereby achieving more uniform force transmission and ensuring smooth sliding of the outer mounting seat.

[0015] 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 up and down directions, the base and the frame are movably assembled in a direction parallel to the axis of the spiral blade, and the power mechanism cooperates with the frame to drive the welding unit to move horizontally.

[0016] 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, when the processing error between different spiral blades is large, it can meet the position adjustment requirements of the welding unit.

[0017] Furthermore, the power mechanism includes a servo motor and a rack and pinion transmission structure, the rack and pinion transmission structure includes a rack fixed on a frame and a gear fixed on an output end of the servo motor, and the gear is meshed with the rack.

[0018] Beneficial effects: When the gear rack is meshed and driven, the transmission efficiency is high, the positioning accuracy is high, and the moving distance of the welding unit can be accurately controlled.

[0019] Furthermore, a lifting drive component is installed on the base, and an output end of the lifting drive component is connected to the inner mounting seat.

[0020] Beneficial effect: The inner mounting seat can be automatically raised and lowered without manual operation and adjustment.

[0021] Furthermore, two welding guns are provided, and the two welding guns are respectively 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 external mounting seat and corresponding to the two welding guns, 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 gun, the vertical adjustment mechanism is used to adjust the vertical position of the welding gun, and the angle adjustment mechanism is used to adjust the installation angle of the welding gun.

[0022] Beneficial effects: The horizontal adjustment mechanism, vertical adjustment mechanism and angle adjustment mechanism corresponding to each welding gun are integrated together, making the overall structure more compact and rationally utilizing the installation space on the external mounting seat.

[0023] Furthermore, a connecting shaft is vertically fixed on the outer mounting seat, and an arc baffle is connected to the end of the connecting shaft.

[0024] Beneficial effect: The arc shield can shield the arc generated during welding and provide effective protection for operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the photovoltaic spiral ground pile blade welding assembly of the present invention; Figure 2 It is a schematic diagram of the structure of each welding unit in the photovoltaic spiral ground pile blade welding assembly of the present invention; Figure 3 for Figure 2 The main view of Figure 4 It is a structural schematic diagram of the follower component; Figure 5 is a schematic diagram of a floating compensation mechanism; Figure 6 for Figure 4 Schematic diagram after omitting the outer mounting base, buffer and buffer mounting plate Figure 7 It is a schematic diagram of the assembly between the base and the lifting cylinder; Figure 8 A schematic diagram showing a first perspective of a welding gun adjustment assembly; Fig. 9 is a schematic diagram showing a second viewing angle of a welding gun adjustment assembly; Fig.10 A schematic diagram showing the structure of the power mechanism; Fig.11 It is a structural diagram of the grounding mechanism.

[0026] Description of reference numerals: 1. Welding unit; 2. Frame; 11. Base; 12. Lifting cylinder; 13. Inner mounting seat; 14. Outer mounting seat; 15. First welding gun; 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. Follow-up assembly; 181. Follow-up plate; 182. Mounting shaft; 183. Follow-up shaft; 184. Clamp; 185. Guide; 19. First lifting manual adjustment mechanism; 191. First fixed block; 192. First lead screw; 193. First guide slide shaft; 194. First hand wheel; 195. First slide block; 20. Horizontal manual adjustment mechanism; 201. Horizontal fixed plate; 202. Third fixed block; 203, third lead screw; 204, third guide slide shaft; 205, third hand wheel; 206, third slide block; 21, automatic horizontal adjustment mechanism; 211, clamping cylinder; 212, welding gun clamping plate; 22, second welding gun; 23, second lifting manual adjustment mechanism; 231, second fixed block; 232, second lead screw; 233, second guide slide shaft; 234, second hand wheel; 235, second slide block; 24 , the first welding gun adapter plate; 25, the first welding gun clamp; 26, the second welding gun adapter plate; 27, the second welding gun clamp; 28, the arc baffle; 29, the grounding mechanism; 291, the grounding bracket; 292, the grounding mounting sheet metal; 293, the copper brush; 294, the arc groove; 295, the guide rod; 296, the linear bearing; 30, the crossbeam; 31, the through rail; 32, the rack; 33, the vertical slide rail; 34, the cylinder adapter plate. DETAILED DESCRIPTION

[0027] 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. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0028] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0029] Embodiment 1 of the photovoltaic spiral ground pile blade welding assembly provided by the present invention: like Figure 1 As shown, the photovoltaic spiral ground pile blade welding assembly includes a frame 2 and a plurality of welding units 1 movably assembled on the frame 2, and the welding units 1 are used to weld the spiral blades to the ground pile pipe.

[0030] For the convenience of description, in this embodiment, the movable direction of the welding unit 1 is defined as the left-right direction.

[0031] Specifically, the frame 2 includes a crossbeam 30 extending in the left-right direction, and two vertically parallel rails 31 are fixedly mounted on the crossbeam 30 and arranged at intervals, and the rails 31 extend in the left-right direction. The 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.

[0032] In this embodiment, 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 gun. The base 11 and the through rail 31 slide in the left and right directions; the power mechanism 17 is fixed to the base 11 through a power adapter plate. Fig.10 As shown, the power mechanism 17 includes a motor plate 173 connected to the power adapter plate, a power motor 171 installed on the motor plate 173, and a gear 172 installed on the output shaft of the power motor 171. The power motor 171 adopts a servo motor. A rack 32 meshing with the gear 172 is installed on the crossbeam 30. When the power motor 171 is started, the gear 172 meshes with the rack 32, so that the base 11 can move left and right on the through rail 31, thereby realizing the left and right position adjustment of the entire welding unit 1 on the through rail 31. A limit sensor is installed at the right end of the through rail 31 to detect whether the power mechanism 17 at the right end moves beyond the operating range to prevent it from falling off.

[0033] like Figure 7 As shown, two vertical slide rails 33 are arranged in parallel and spaced apart on the base 11, and the inner mounting seat 13 is slidably assembled on the two vertical slide rails 33. A lifting cylinder 12 is provided on the base 11 above the inner mounting seat 13, and a cylinder adapter plate 34 is connected to the end of the piston rod of the lifting cylinder 12, and the cylinder adapter plate 34 is connected to the inner mounting seat 13, so that the lifting of the inner mounting seat 13 is realized by the lifting cylinder 12. Of course, in other embodiments, the lifting cylinder 12 can also be replaced by an electric push rod.

[0034] like Figure 5 and Figure 6As shown, the inner mounting seat 13 is provided with two horizontal slide rails arranged in parallel and spaced apart from each other, and the outer mounting seat 14 is slidably assembled on the two horizontal slide rails. The floating compensation mechanism 16 is arranged between the inner mounting seat 13 and the outer mounting seat 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 in parallel and spaced apart from each other and are both fixed on the inner mounting seat 13, the second connecting seat 162 is fixed on the outer mounting seat 14, and the guide shaft 163 connects the two first connecting seats 161; the compression spring 164 is sleeved on the guide shaft 163, one end of which is against one of the first connecting seats 161, and the other end is against the second connecting seat 162; the second connecting seat 162 is slidably matched with the guide shaft 163 in the left and right directions. Buffers 166 are fixed to the inner mounting seat 13 at the left and right ends of the outer mounting seat 14 through buffer mounting plates 165 , so as to buffer and limit the outer mounting seat 14 when the outer mounting seat 14 moves left and right relative to the inner mounting seat 13 .

[0035] like Figure 4 As shown, the follower assembly 18 is integrally mounted on the outer mounting seat 14, and includes 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 on the outer mounting seat 14 and can adjust the mounting height. The mounting shaft 182 is assembled on the follower plate 181 by rotating around an axis extending in the front-rear direction. The follower shaft 183 vertically passes 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, and the guide 185 is a shaft, and two are provided, which are symmetrically arranged on both sides of the radial direction of the follower shaft 183, and 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 blades, the angle and position of the guide 185 are adjusted and locked so that the guide 185 abuts against the side of the spiral blade and the end contacts the ground pile pipe. The guide member 185 is not limited to the form of a shaft, and may also be a guide wheel, a block, or the like.

[0036] like Figure 3 As shown, two welding guns are provided, namely a first welding gun 15 and a second welding gun 22. Figure 2 , Figure 8 and Fig. 9As shown, the outer mounting seat 14 is provided with a horizontal automatic adjustment mechanism 21, which includes a clamping cylinder 211 and a welding gun clamping plate 212 connected to the end of the piston rod of the clamping cylinder 211. The welding gun clamping plate 212 is slidably assembled with the outer mounting seat 14 in the left-right direction, and is used to adjust the position of the first welding gun 15 in the left-right direction. The welding gun clamping plate 212 is installed with a first lifting manual adjustment mechanism 19, which is a screw nut mechanism, including two first fixed blocks 191 arranged parallel and spaced up and down, a first screw 192 rotatably assembled on one of the first fixed blocks 191, two first guide slide shafts 193 symmetrically arranged on the left and right sides of the first screw 192, a first hand wheel 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 slide shaft 193 are slidably matched in the up-down direction. The first slider 195 is connected to a first welding gun adapter plate 24, and the installation height of the first welding gun adapter plate 24 on the first slider 195 can be adjusted. The first welding gun adapter plate 24 is rotatably mounted with a first welding gun clamp 25 around an axis extending in the front-rear direction, and the first welding gun clamp 25 is used to clamp the first welding gun 15. The first welding gun clamp 25 can adjust the angle of the first welding gun 15, the manual lifting adjustment mechanism can fine-tune the height of the first welding gun 15, the first welding gun adapter plate 24 can roughly adjust the height of the first welding gun 15, and the clamping cylinder 211 can roughly adjust the left and right position of the first welding gun 15.

[0037] A second manual lifting adjustment mechanism 23 is installed on the outer mounting seat 14 at the buffer mounting plate near the power motor 171. The second manual lifting adjustment mechanism 23 has the same structure as the first manual lifting adjustment mechanism 19, including two second fixed blocks 231 arranged in parallel and spaced apart in an upper and lower manner, a second lead screw 232 rotatably assembled between one of the second fixed blocks 231, two second guide slide shafts 233 symmetrically arranged on the left and right sides of the second lead screw 232, a second hand wheel 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 slide shaft 233 slide in the up and down directions. The second slider 235 is provided with a horizontal manual adjustment mechanism 20, which is also a screw-nut transmission mechanism, including a horizontal fixed plate 201 fixed on the second slider 235, a third fixed block 202 installed on the horizontal fixed plate 201 in parallel and spaced relation, a third screw 203 rotatably mounted on one of the third fixed blocks 202, two third guide slide shafts 204 symmetrically arranged on the upper and lower sides of the third screw 203, a third hand wheel 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. The third slider 206 is connected with a second welding gun adapter plate 26, and the installation height of the second welding gun adapter plate 26 on the third slider 206 can be adjusted. The second welding gun adapter plate 26 is rotatably mounted with a second welding gun clamp 27 around an axis extending in the front-rear direction, and the second welding gun clamp 27 is used to clamp the second welding gun 22. The second welding gun clamp 27 can adjust the angle of the second welding gun 22, the second lifting manual adjustment mechanism 23 can fine-tune the height of the second welding gun 22, the second welding gun adapter plate 26 can coarsely adjust the height of the second welding gun 22, and the horizontal manual adjustment mechanism 20 can fine-tune the left and right position of the second welding gun 22.

[0038] A fixed shaft extending in the front-to-back direction is also connected to each outer mounting seat 14, and two hinged arc shields 28 are connected to the ends of the fixed shaft. Figure 1 As shown, the arc shield 28 is used to shield the welding arc and reduce the arc damage. Fig.10 As shown, each welding unit 1 is also equipped with two grounding mechanisms 29, such as Fig.11 As shown, the grounding mechanism 29 includes a grounding bracket 291 fixed on the outer mounting seat 14, a grounding installation sheet metal 292 fixed on the grounding bracket 291, and a copper brush 293 for contacting the ground pile pipe, and the copper brush 293 is provided with an arc groove 294 adapted to the shape of the ground pile pipe. A guide rod 295 is connected to the copper brush 293, and a linear bearing 296 is provided on the grounding installation sheet metal 292 to guide and cooperate with the guide rod 295. During the welding process, it is ensured that the copper brush 293 is always in contact with the ground pile pipe to ensure that the welding grounding wire is connected.

[0039] The working process of the photovoltaic spiral ground pile blade welding assembly of the present invention is: The welding unit 1 with the welding gun angle and height adjusted in advance moves left and right along the through rail 31 to the corresponding spiral blade under the action of the power mechanism 17, and the two guide members 185 abut against the side of the spiral blade and contact the surface of the ground pile pipe; after the ground pile pipe and the spiral blade are positioned by the external positioning mechanism and driven to rotate by the corresponding driving structure, the two welding guns first spot weld the spiral blade, and the compression spring 164 is in a compressed state during spot welding. After spot welding, the position of the spiral blade is fixed; then each welding unit 1 adjusts its position, and the ground pile pipe rotates at the same time, and the two welding guns further weld. Since the spiral blade is spiral-shaped, the contact position between the guide 185 and the spiral blade also changes during the process of following the rotation of the ground pile pipe. The spiral blade can generate a force on the guide 185 when rotating, but under the elastic force of the compression spring 164, the guide 185 can always contact the spiral blade. The force is transmitted to the outer mounting seat 14 through the guide 185, so that the outer mounting seat 14 drives the two welding guns to translate synchronously, automatically compensates the distance between the heads of the two welding guns and the welding position, keeps the two welding guns following the welding position at all times, and then realizes that the heads of the two welding guns are always aligned with the welding position. When the welding operation is completed, the lifting cylinder 12 drives the inner mounting seat 13 to rise, and the next set of welding operations can be carried out after unlocking the ground pile pipe, realizing the automatic welding of the ground pile pipe and the blades, and ensuring the welding quality.

[0040] Embodiment 2 of the photovoltaic spiral ground pile blade welding assembly provided by the present invention: The main difference between it and Example 1 is: In Example 1, each welding unit is equipped with a power mechanism.

[0041] In this embodiment, all welding units share a power mechanism, which is still in the form of a combination of a power motor and a gear rack transmission structure. In this case, the power mechanism is set on the frame, and the bases of each welding unit are connected through a long rack, and the gear is meshed with the long rack, so that each welding unit can move left and right synchronously. Of course, in other embodiments, the power mechanism can also be in the form of a screw nut mechanism, a screw is rotatably installed on the frame, a slider is fixed on each base, and the slider is threadedly connected to the screw.

[0042] Embodiment 3 of the photovoltaic spiral ground pile blade welding assembly provided by the present invention: The main difference between it and Example 1 is: In embodiment 1, the floating compensation mechanism adopts an elastic mechanism.

[0043] In this embodiment, the floating compensation mechanism adopts a non-contact sensor to drive the compensation mechanism, and uses non-contact measurement means such as laser ranging, ultrasonic sensor or infrared sensor to monitor the distance between the welding gun and the workpiece in real time. According to the distance signal fed back by the sensor, the control mechanism (such as electric or pneumatic actuator) adjusts the position of the welding gun in real time.

[0044] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0045] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A photovoltaic spiral pile blade welding assembly, characterized in that: It comprises a frame and a plurality of welding units, wherein the plurality of welding units are arranged at intervals in a direction parallel to the axis of the spiral blade and are movably assembled on the frame; The welding unit comprises a welding gun, an outer mounting seat, an inner mounting seat capable of being lifted and lowered relative to a frame, a floating compensation mechanism and a follower assembly; The welding gun is mounted on an outer mounting seat via an adjustment component capable of adjusting the angle and position of the welding gun; the outer mounting seat and the inner mounting seat are slidably matched in a direction parallel to the axis of the spiral blade, and a floating compensation mechanism is connected between the outer mounting seat and the inner mounting seat; a follower component is mounted on the outer mounting seat, and includes at least one guide member for contacting the spiral blade; the floating compensation mechanism is used to drive the guide member to always contact the spiral blade during the rotation of the spiral blade, so as to drive the outer mounting seat to move under the push of the spiral blade, and automatically compensate for the distance between the head of the welding gun and the spiral blade.

2. The photovoltaic spiral pile blade welding assembly according to claim 1 is 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 arranged in parallel and spaced apart and are both 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 spiral blade.

3. The photovoltaic spiral pile blade welding assembly according to claim 2 is characterized in that: Buffers are respectively arranged on the inner mounting seat at both sides of the outer mounting seat.

4. The photovoltaic spiral 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 assembled on the outer mounting seat so as to rotate around an axis perpendicular to the sliding direction of the outer mounting seat. The follower shaft is vertically mounted to the mounting shaft. A clamping plate is connected to the end of the follower shaft, and the guide is fixed on the clamping plate.

5. The photovoltaic spiral pile blade welding assembly according to claim 4 is characterized in that: There are two guide members, which are symmetrically arranged on both sides of the follower shaft in the radial direction.

6. A photovoltaic spiral pile blade welding assembly according to any one of claims 1 to 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 along the up and down directions. The base and the frame are movably assembled in a direction parallel to the axis of the spiral blade. The power mechanism cooperates with the frame to drive the welding unit to move horizontally.

7. The photovoltaic spiral pile blade welding assembly according to claim 6, characterized in that: The power mechanism comprises a servo motor and a gear rack transmission structure, wherein the gear rack transmission structure comprises a rack fixed on a frame and a gear fixed on an output end of the servo motor, and the gear is meshed with the rack.

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

9. A photovoltaic spiral pile blade welding assembly according to any one of claims 1 to 5, characterized in that: There are two welding guns, which are respectively 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 which are installed on the outer mounting seat and corresponding to the two welding guns, 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 gun, the vertical adjustment mechanism is used to adjust the vertical position of the welding gun, and the angle adjustment mechanism is used to adjust the installation angle of the welding gun.

10. A photovoltaic spiral pile blade welding assembly according to any one of claims 1 to 5, characterized in that: A connecting shaft is vertically fixed on the outer mounting seat, and an arc baffle is connected to the end of the connecting shaft.

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