Photovoltaic spiral ground pile blade welding equipment

Abstract

The utility model belongs to the technical field of welding equipment, and particularly relates to photovoltaic spiral ground pile blade welding equipment which comprises an equipment body frame, a positioning unit and a blade welding assembly, and the blade welding assembly comprises a plurality of welding units movably assembled on the equipment body frame in the direction parallel to a ground pile pipe. Each welding unit comprises a welding gun, an outer mounting seat, a liftable inner mounting seat, a spring buffer 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 horizontal position of the welding gun. The outer mounting base and the inner mounting base are in sliding fit in the direction parallel to the ground pile pipe, and the spring buffering mechanism is connected between the outer mounting base and the inner mounting base. The follow-up assembly is installed on the outer installation base and comprises at least one guide piece which makes contact with the blades all the time under the elastic force effect of the spring buffering mechanism. The working efficiency of spiral ground pile welding equipment can be improved, and the welding quality of blades is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of welding equipment technology, specifically relating to welding equipment for photovoltaic spiral ground pile blades. Background Technology

[0002] Photovoltaic spiral ground piles are a type of foundation fixing device specifically used for solar photovoltaic support systems. They typically use a pile body with a pointed end and spiral blades connected to the pile body. By rotating and pressing down with a pile driver, the pile penetrates the soil layer, forming an anchoring force to prevent the ground pile from detaching from the ground. No concrete pouring is required, making installation convenient.

[0003] During the manufacturing process of photovoltaic helical ground piles, a ground pile tube with a pointed front end needs to be machined first. Then, 2-3 individual helical blades are welded to the outer wall of the ground pile tube to ensure that the photovoltaic helical ground pile can be smoothly drilled into the ground and to prevent it from coming out of the ground. Therefore, the manufacturing of photovoltaic helical ground piles requires the use of relevant welding equipment.

[0004] Existing welding equipment used in the manufacture of photovoltaic spiral ground piles, such as the semi-automatic spiral ground pile welding machine disclosed in Chinese Utility Model Patent Publication No. CN218426475U, includes a base frame on which ground piles are movably mounted. A transmission device is mounted at one end of each ground pile. A support device is also slidably mounted on the base frame. A column frame is located in the middle of the support device, and a welding torch holder is mounted on the column frame. Positioning pins are located on both sides of the lower end of the column frame, and these positioning pins cooperate with the spiral blades to be welded, which are mounted on the ground piles. In use, the aforementioned semi-automatic spiral ground pile welding machine spot-welds the spiral blades to be welded onto the ground piles. When the ground piles rotate, they act on the welding torches, causing the support device to move along the base frame. Simultaneously, the welding torch on the column frame acts on the spiral blades, ensuring that the spiral blades are welded to the ground pile mounting points during rotation. However, when manually loading and unloading photovoltaic spiral tubes, the support frame needs to be opened, which affects the position of components such as welding guns on the support frame. Aligning the welding gun head and blades requires frequent manual operation, resulting in high labor intensity and low production efficiency.

[0005] For example, the spiral pile welding machine disclosed in Chinese utility model patent CN221454744U has a guide rail at the top of the frame, with several guide wheel support frames and several welding assemblies on the guide rail. Guide wheels are mounted on the guide wheel support frames, providing support and rolling drive for the pile tube. A pile pressing device is installed in conjunction with the guide wheel support frames to fix the pile tube. A welding gun holder is mounted on the welding assembly facing the guide wheels, and a welding gun is fixed on the welding gun holder to perform the welding operation. In the above-mentioned spiral pile welding machine, the welding gun assembly lacks active driving power during lateral movement, and the positions of the two welding guns are fixed. When the longitudinal drive cylinder drives the welding gun assembly to weld the blades, misalignment between the welding gun and the blades is prone to occur. Furthermore, without active or passive guidance at the welding head, the weld position is easily deviated. Utility Model Content

[0006] The purpose of this utility model is to provide a photovoltaic spiral ground pile blade welding equipment to solve the technical problems of low efficiency and difficulty in guaranteeing welding quality of existing spiral ground pile welding equipment.

[0007] To solve the above problems, the photovoltaic helical ground pile blade welding equipment provided by this utility model adopts the following technical solution:

[0008] A photovoltaic spiral ground pile blade welding equipment includes a main frame of the equipment and a positioning unit and a blade welding assembly installed on the main frame of the equipment. The positioning unit is used to position the ground pile tube and the blade and drive them to rotate. The blade welding assembly is used to weld the blade to the ground pile tube. The blade welding assembly includes multiple welding units that are movably assembled on the main frame of the equipment in a direction parallel to the ground pile tube. Each welding unit includes a welding torch, an outer mounting base, a liftable inner mounting base, a spring buffer mechanism, and a follower component.

[0009] 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 slide in a direction parallel to the ground pile pipe, and a spring buffer mechanism is connected between the outer mounting base and the inner mounting base;

[0010] The follower assembly is mounted on the outer mounting base and includes at least one guide for contacting the blade. During the rotation of the blade, at least one guide is always in contact with the blade under the elastic force of the spring buffer mechanism, and rotates under the push of the blade while driving the outer mounting base to move in a direction parallel to the ground pile pipe so that the head of the welding torch is always aligned with the welding position of the blade.

[0011] The beneficial effects of this utility model are as follows: This utility model uses a positioning unit to position the ground pile pipe and blades, ensuring accurate welding position. By adjusting the position of the welding unit and the angle of the welding torch, the head of the welding torch is aligned with the welding position. Because the blades are spiral-shaped, the contact position between the guide and the blades changes as they rotate with the ground pile pipe. However, under the elastic force of the spring buffer mechanism, the guide remains in contact with the blades. Thus, the rotation of the blades generates a force on the guide, which is transmitted to the outer mounting base. This force causes the outer mounting base to move the welding torch horizontally, automatically compensating for the distance between the welding torch head and the welding position, ensuring the welding torch always follows the welding position, and thus ensuring the welding torch head is always aligned with the welding position. Since the welding torch and adjustment components are integrated into the outer mounting base, after welding is completed, the outer mounting base can rise and fall under the action of the inner mounting base, thereby raising and lowering the welding torch and adjustment components as a whole. No further adjustment of the welding torch is required, ensuring accurate welding torch position for each welding operation, improving welding efficiency and quality.

[0012] 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 clamping plate is connected to the end of the follower shaft. The guide is clamped on the clamping plate at least on one side of the radial direction of the follower shaft.

[0013] Beneficial effects: It helps to make reasonable use of the installation space on the external mounting base, reduce the size of the guide, provide more room for the guide to move, and avoid the guide being too long and interfering with other structures on the external mounting base.

[0014] 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 main frame of the equipment are movably assembled in the direction parallel to the ground pile pipe. The power mechanism is driven by the main frame of the equipment to drive the welding unit to move horizontally.

[0015] Beneficial effects: Each welding unit is equipped with a power mechanism, which can independently adjust the horizontal position of each welding unit on the main frame of the equipment to adapt to different installation positions of the blades. At the same time, it can meet the position adjustment requirements of the welding unit when the machining error between different blades is large.

[0016] Furthermore, the spring buffer mechanism includes 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 is connected to 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 the direction parallel to the ground pile pipe.

[0017] Beneficial effects: The overall structure of the spring buffer mechanism is simple, without complex transmission components; the layout is reasonable and the structure is compact; the guide shaft plays a precise guiding role, ensuring that the direction of the buffer force is always consistent with the direction of the guide shaft.

[0018] Furthermore, the welding torch is provided in two parts, and the distance between the two welding torches in the direction parallel to the ground pile pipe is adjustable.

[0019] Beneficial effects: Two welding torches can perform welding operations simultaneously, which can improve welding efficiency; the distance between the two welding torches is adjustable, which can adapt to the welding of blades of different sizes.

[0020] Furthermore, the positioning unit includes a separately arranged ground pile tube positioning mechanism and a blade positioning mechanism. The ground pile tube positioning mechanism is movably mounted on the main frame of the equipment in a direction parallel to the ground pile tube, and is used to position the ground pile tube from both ends and drive the ground pile tube to rotate. The blade positioning mechanism is movably mounted on the main frame of the equipment in a direction perpendicular to the ground pile tube, and is used to position the blade and press the ground pile tube. The photovoltaic spiral ground pile blade welding equipment also includes a ground pile tube conveying mechanism corresponding to the blade positioning mechanism, which is used to convey the ground pile tube to the blade positioning mechanism.

[0021] Beneficial effects: By separating the ground pile tube positioning mechanism and the blade positioning mechanism, the blade positioning mechanism can cooperate with the ground pile tube conveying mechanism. First, it receives the ground pile tube and positions the blade, and then the ground pile tube is positioned by the ground pile tube positioning mechanism. They do not interfere with each other and can realize automated assembly line operation.

[0022] Furthermore, the ground pile tube positioning mechanism includes a first positioning member for positioning and inserting into the ground pile tube cavity and a second positioning member for positioning and inserting the pointed cone portion of the ground pile tube. At least one of the first and second positioning members is drivenly connected to a drive assembly for driving both to rotate synchronously. The blade positioning mechanism includes a positioning seat, which is provided with a positioning groove, a jacking member that can move in the direction parallel to the ground pile tube, a support member, and a pressing mechanism. The positioning groove is used for placing one end of the blade, the jacking member is used to press the other end of the blade, the support member is used to support the ground pile tube, and the pressing mechanism is used to press the ground pile tube in the direction perpendicular to the ground pile tube.

[0023] Beneficial effects: It enables precise positioning of the blades and ground pile pipes, thereby ensuring accurate weld seam position between the blades and ground pile pipes during welding.

[0024] Furthermore, the positioning seat includes an upright plate and a flat plate vertically connected to the upright plate. A stop is installed on the flat plate, and the space between the stop and the upright plate and the flat plate forms the positioning groove. The clamping mechanism is used to clamp the ground pile pipe to the end of the upright plate and / or the flat plate.

[0025] Beneficial effects: The positioning groove is simple to form, and the vertical plate and / or flat plate that forms the positioning groove can cooperate with the clamping mechanism to clamp the ground pile pipe, reducing the number of clamping mechanisms required.

[0026] Furthermore, the positioning seat also includes a base plate and a vertical plate, the base plate being perpendicularly connected to the vertical plate and the upright plate, and the vertical plate being perpendicular to the upright plate; the clamping mechanism includes a crank arm hinged to the vertical plate, the crank arm having a clamping surface for clamping the ground pile pipe, and a pusher hinged to the base plate, the pusher end of the pusher being hinged to the crank arm to drive the crank arm to rotate.

[0027] Beneficial effects: The clamping mechanism has a simple structure and is compactly installed with the positioning seat. The clamping mechanism adopts a pusher-driven crank arm structure, which can achieve rapid action response and realize rapid clamping and loosening of the ground pile pipe. Since the crank arm is hinged to the vertical plate, it can also clamp ground pile pipes of different diameters.

[0028] Furthermore, it also includes a ground pile pipe feeding mechanism and a feeding rack. The ground pile pipe feeding mechanism is used to feed the ground pile pipes to be welded one by one to the ground pile pipe conveying mechanism. The feeding rack has an inclined feeding ramp, one end of which extends in a direction perpendicular to the ground pile pipe to a position that passes the ground pile pipe positioning mechanism, so that the ground pile pipes after welding are rolled off after the ground pile pipe positioning mechanism releases the ground pile pipe positioning.

[0029] Beneficial effects: It can form a production line, which can automate the series of processes such as feeding and conveying of ground pile pipes, positioning of blades, positioning of ground pile pipes, welding of blades, and unloading of ground pile pipes after welding, thereby improving processing efficiency. Attached Figure Description

[0030] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0031] Figure 1 This is a three-dimensional structural schematic diagram of the photovoltaic spiral ground pile blade welding equipment of this utility model;

[0032] Figure 2 for Figure 1 A three-dimensional structural diagram of the Zhongdi pile pipe feeding mechanism;

[0033] Figure 3 for Figure 1 A three-dimensional structural diagram of the Zhongdi pile pipe conveying mechanism;

[0034] Figure 4 for Figure 1 A three-dimensional structural diagram of the positioning unit;

[0035] Figure 5 for Figure 4 A three-dimensional structural diagram of the Zhongdi pile pipe positioning mechanism;

[0036] Figure 6 for Figure 4 A three-dimensional structural diagram of the middle blade positioning unit;

[0037] Figure 7 This is a detailed schematic diagram of the main frame of the display device;

[0038] Figure 8 A schematic diagram of the ground pile pipe limiting mechanism;

[0039] Figure 9 for Figure 1 A three-dimensional structural diagram of the welding assembly;

[0040] Figure 10 for Figure 9 A three-dimensional structural diagram of the welding unit;

[0041] Figure 11 for Figure 10 A three-dimensional structural diagram of the servo component;

[0042] Figure 12 To display Figure 9 A schematic diagram of the structure of the spring buffer mechanism;

[0043] Figure 13 for Figure 12 A schematic diagram omitting the external mounting bracket, buffer, and buffer mounting plate;

[0044] Figure 14 A schematic diagram showing the first-person view of the welding torch adjustment assembly;

[0045] Figure 15 A schematic diagram showing the second perspective of the welding torch adjustment assembly;

[0046] Figure 16 This is a schematic diagram of the power mechanism.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. Main frame of the equipment; 11. Crossbeam; 12. Guide rail; 13. Rack; 14. Blade limiting mechanism; 15. Adjusting slide rail; 16. Push-pull cylinder; 17. Blade limiting mechanism;

[0049] 2. Positioning unit; 21. Ground pile pipe positioning mechanism; 211. First positioning component; 212. Second positioning component; 213. First bearing seat assembly; 214. Second bearing seat assembly; 215. First base; 216. First support base; 217. First cylinder; 218. Second cylinder; 219. Carbon brush assembly; 220. Second base; 221. Second support base; 222. First guide rail; 223. Second guide rail; 224. Support component;

[0050] 22. Blade positioning mechanism; 225. Positioning seat; 2251. Base plate; 2252. Vertical plate; 2253. Vertical plate; 2254. Flat plate; 2255. Stop mounting hole; 226. Pushing component; 227. Clamping mechanism; 2271. Pushing component; 2272. Cylinder hinge seat; 2273. Crank arm; 2274. Crank arm hinge seat; 23. Sliding component; 24. Ground pile pipe limiting mechanism; 241. Limiting bracket; 242. Limiting cylinder; 243. Stop bar;

[0051] 3. Blade welding assembly; 31. Welding unit; 311. Base; 312. Lifting cylinder; 313. Inner mounting seat; 314. Outer mounting seat; 315. First welding torch; 316. Spring buffer mechanism; 3161. First connecting seat; 3162. Second connecting seat; 3163. Guide shaft; 3164. Compression spring; 3165. Buffer mounting plate; 3166. Buffer; 317. Power mechanism; 3171. Power motor; 3172. Gear; 3173. Motor plate; 318. Follower assembly; 3181. Follower plate; 3182. Mounting shaft; 3183. Follower shaft; 3184. Clamping plate; 3185. Guide component; 319. First lifting manual adjustment mechanism; 3191. First fixing block; 3192. First lead screw; 3193. First guide slide shaft; 31 94. First handwheel; 3195. First slider; 320. Horizontal manual adjustment mechanism; 3201. Horizontal fixed plate; 3202. Third fixed block; 3203. Third lead screw; 3204. Third guide shaft; 3205. Third handwheel; 3206. Third slider; 321. Horizontal automatic adjustment mechanism; 3211. Clamping cylinder; 3212. Welding torch clamping plate; 322. Second welding torch; 323. Second lifting manual adjustment mechanism; 3231. Second fixed block; 3232. Second lead screw; 3233. Second guide shaft; 3234. Second handwheel; 3235. Second slider; 324. First welding torch adapter plate; 325. First welding torch clamping block; 326. Second welding torch adapter plate; 327. Second welding torch clamping block; 329. Arc baffle; 330. Grounding mechanism;

[0052] 4. Ground pile pipe feeding mechanism; 41. Feeding frame; 42. Top material cylinder; 43. Feeding cylinder; 44. Top material plate; 45. Lifting slide rail; 46. Feeding plate; 47. Loading plate; 48. Top material transfer plate; 49. Feeding transfer plate; 40. First sensor;

[0053] 5. Pipe conveying mechanism; 51. Chain feeding frame; 52. Chain conveying mechanism; 53. Baffle; 54. Second sensor; 55. Second sensor support;

[0054] 6. Material unloading rack; 7. Welding wire hopper; 8. Welding machine placement rack; 9. Welding machine. Detailed Implementation

[0055] 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.

[0056] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0057] Example 1 of the photovoltaic spiral ground pile blade welding equipment provided by this utility model:

[0058] like Figure 1 As shown, the photovoltaic spiral ground pile blade welding equipment includes a ground pile pipe feeding mechanism 4, a ground pile pipe conveying mechanism 5, a main equipment frame 1, a positioning unit 2 installed on the main equipment frame 1, a blade welding assembly 3 installed on the main equipment frame 1, and a material unloading rack 6.

[0059] For ease of description, in this embodiment, the direction parallel to the length of the ground pile pipe is defined as the left-right direction, the direction horizontally perpendicular to the length of the ground pile pipe is defined as the front-back direction, and the direction vertically perpendicular to the length of the ground pile pipe is defined as the up-down direction.

[0060] like Figure 2As shown, the ground pile pipe feeding mechanism 4 includes a feeding frame 41, a feeding plate 46, a feeding cylinder 43, and a top-feeding cylinder 42. The feeding frame 41 has an inclined feeding ramp for the ground pile pipes to roll down. Multiple feeding plates 46 are arranged at intervals along the left-right direction. The feeding plates 46 are fixed to the rear end of the feeding frame 41, and their top surfaces are located above the feeding ramp, forming a buffer station at the front end of the feeding plate 46 to prevent the ground pile pipes from being fed. The ground pile pipes queue up in front of the buffer station. The top surface of the feeding plate 46 is a feeding ramp parallel to the feeding ramp. The top-feeding cylinder 42 is fixed to the feeding plate 46, and its piston rod is connected to a top-feeding plate 44 via a transition plate. The top surface of the top-feeding plate 44 is a top-feeding ramp parallel to the feeding ramp. The feeding plate 46 is equipped with a lifting slide rail 45 that slides and guides the top plate 44. When the top cylinder 42 extends upward, it lifts a ground pile pipe located at the feeding buffer station upward through the top plate 44 until it slides down the top inclined surface to the feeding inclined surface. The feeding plate 46 has a stop at the end of the feeding inclined surface to stop the ground pile pipe on the feeding inclined surface. The feeding cylinder 43 is fixed to the feeding plate 46 near the stop. The piston rod of the feeding cylinder 43 is connected to the feeding plate 45 through a transition plate. The top surface of the feeding plate 45 is a feeding inclined surface parallel to the feeding inclined surface. Since the lengths of the feeding inclined surface and the top inclined surface are limited, when feeding ground pile pipes of different diameters, the lengths of the top inclined surface and the feeding inclined surface can be increased by connecting a top transfer plate 47 to the top plate 44 and a feeding transfer plate 48 to the feeding plate 45.

[0061] A first sensor 49 is provided on the side of the stop portion of the feeding plate 46. The first sensor 49 is fixed to the feeding plate 46 by a first sensor 49 support and is used to detect whether there is a ground pile pipe on the feeding plate 46. In this embodiment, the first sensor 49 is a proximity sensor.

[0062] like Figure 1 As shown, the ground pile pipe conveying mechanism 5 is located behind the ground pile pipe feeding mechanism 4, as... Figure 3As shown, the system includes a chain feeding frame 51, a chain conveying mechanism 52, baffles 53, and a second sensor 54. Two baffles 53 are arranged in a V-shape on the front and rear sides of the chain feeding frame 51. The chain conveying mechanism 52 is mounted on the chain feeding frame 51, located in the area between the two baffles 53. The chain conveying mechanism 52 is existing technology. When the feeding cylinder 43 extends, it can lift the ground pile tube at the aforementioned stop portion and allow it to fall onto the chain conveying mechanism 52 along the surface of the baffle 53. Multiple openings are spaced apart in the left-right direction on the baffle 53. A second sensor support 55 is fixed to each opening, and a second sensor 54 is fixed to the second sensor support 55. The second sensor 54 is used to detect whether there is a ground pile tube on the chain conveying mechanism 52 and the position of the ground pile tube, so as to control the feeding action of the ground pile tube feeding mechanism 4. The multiple second sensors 54 can detect ground pile tubes of different lengths.

[0063] like Figure 1 As shown, the main frame 1 of the equipment is located on the left side of the chain feeder frame 51. A welding machine placement rack 8 is installed on the front side of the main frame 1, and multiple welding machines 9 are placed on the welding machine placement rack 8. A wire spool placement rack is provided on the front side of the welding machine placement rack 8, and multiple wire spools 7 for holding welding wire are placed on the wire spool placement rack.

[0064] In this embodiment, as Figure 4 As shown, the positioning unit 2 includes a separately arranged ground pile pipe positioning mechanism 21 and a blade positioning mechanism 22. The ground pile pipe positioning mechanism 21 is movably mounted on the main frame 1 of the equipment in the left-right direction, and is used to position the ground pile pipe from both ends and drive the ground pile pipe to rotate. The blade positioning mechanism 22 is movably mounted on the main frame 1 of the equipment in the front-back direction, and is used to position the blades and press the ground pile pipe.

[0065] Specifically, such as Figure 5As shown, the ground pile pipe positioning mechanism 21 includes a first positioning element 211, a second positioning element 212 for positioning and inserting the pointed tip of the ground pile pipe, a first drive assembly (not shown) driven by the first positioning element 211, and a second drive assembly (not shown) driven by the second positioning element 212. The first positioning element 211 is a cone head used for positioning and inserting into the cavity of the ground pile pipe; the second positioning element 212 is a sleeve used for positioning and inserting the pointed tip of the ground pile pipe, with the cone head and sleeve coaxial. Both the first drive assembly and the second drive assembly include a drive motor and a transmission shaft. The drive motor is a servo motor, and the output shaft of the drive motor is driven by the transmission shaft. The first positioning element 211 and the second positioning element 212 are coaxially connected to two corresponding transmission shafts. The two transmission shafts are respectively mounted on a first bearing seat assembly 213 and a second bearing seat assembly 214. A first base 215 is connected below the first bearing seat assembly 213, and a second base 220 is connected below the second bearing seat assembly 214. A first support base 216 is provided below the first base 215, and a first guide rail 222 extending in the left-right direction is installed on the first support base 216. The first base 215 and the first guide rail 222 are slidably engaged. A second support base 221 is provided below the second base 220, and a second guide rail 223 extending in the left-right direction is installed on the second support base 221. The second base 220 and the second guide rail 223 are slidably engaged. A first cylinder 217 is provided on the side of the main frame 1 corresponding to the position of the first support base 216, and a second cylinder 218 is provided on the side corresponding to the position of the second support base 221. The piston rod of the first cylinder 217 is connected to the first base 215 to drive the first base 215 to move the first positioning component 211 left and right. The piston rod of the second cylinder 218 is connected to the second base 220 to drive the second base 220 to move the second positioning component 212 left and right. Finally, the clamping of the ground pile pipe is achieved. The first bearing housing assembly 213 and the second bearing housing assembly 214 can be adjusted to a fixed height by setting pads of different heights on the first base 215 and the second base 220, thereby adapting to the welding requirements of photovoltaic helical ground piles of different diameters.

[0066] Carbon brush assemblies 219 are installed on both the first bearing housing assembly 213 and the second bearing housing assembly 214. The carbon brush assembly 219 includes a spring and a copper brush. The spring presses the copper brush to ensure that the copper brush is always in close contact with the corresponding drive shaft and to ensure that the ground wire is connected.

[0067] like Figure 4 As shown, the blade positioning mechanism 22 is arranged in multiple sets at intervals in the left-right direction, the number of which is the same as the number of blades to be welded on a single ground pile pipe. Figure 6As shown, each blade positioning mechanism 22 includes a positioning seat 225, a clamping mechanism 227, a pushing member 226, and a support member 224. The positioning seat 225 includes a base plate 2251, a vertical plate 2253, a vertical plate 2252, and a flat plate 2254. The vertical plate 2252 is vertically connected to the front side of the base plate 2251, and the vertical plate 2253 is vertically connected to the left side of the base plate 2251. The vertical plate 2252 and the vertical plate 2253 are perpendicular to each other. The flat plate 2254 is vertically connected to the top of the vertical plate 2253. The flat plate 2254 has a stop-member mounting hole 2255 extending vertically. A stop-member (not shown in the figure) is installed in the stop-member mounting hole 2255. The stop-member uses common bolts, and the space between the stop-member, the vertical plate 2253, and the flat plate 2254 forms a positioning groove for positioning one end of the blade. The jacking component 226 is vertically connected to the vertical plate 2253 and is in the form of a cylinder. The jacking end of the jacking component 226 can extend and retract left and right to jack the other end of the blade. During actual blade installation, the blade is clamped onto the ground pile pipe, one end of the blade is placed into the positioning groove, and the other end is pressed by the jacking component 226 to achieve rapid blade positioning. The support component 224 is block-shaped and detachably connected to the vertical plate 2253. The support height can be adjusted, and the support component 224 is used to support the ground pile pipe. The vertical plate 2252 has a notch extending in the vertical direction. Crank arm hinge seats 2274 are respectively provided on the left and right sides of the notch, and the bottom plate 2251 is provided with a cylinder hinge seat 2272. The clamping mechanism 227 includes a crank arm and a pusher 2271, which is also a cylinder. The pusher 2271 is hinged to a cylinder hinge seat 2272, and the pushing end of the pusher 2271 is hinged to the crank arm. The crank arm is located at the notch and is hinged to two crank arm hinge seats 2274. When the pusher 2271 extends, it drives the crank arm to flip upward, causing the crank arm to press the ground pile pipe against the ends of the upright plate 2253 and the flat plate 2254, with the ends of the upright plate 2253 and the flat plate 2254 flush. When the pusher 2271 retracts, it drives the crank arm to flip downward, releasing the clamping of the ground pile pipe.

[0068] like Figure 4 and Figure 7 As shown, multiple blade positioning mechanisms 22 are mounted together on a sliding member 23. The main frame 1 of the equipment is provided with an adjusting slide rail 15 that slides with the sliding member 23, extending in the front-to-back direction. Push-pull cylinders 16 are connected to the left and right sides of the sliding member 23, respectively. The push-pull cylinders 16 can drive the sliding member 23 to move back and forth, moving the already positioned blades and ground pile pipes together to the blade welding assembly 3. A blade limiting mechanism 14 is provided on the main frame 1 of the equipment to limit the movement of the sliding member 23. The blade limiting mechanism 14 includes two limiting rods fixed relative to the main frame 1 of the equipment. When the sliding member 23 contacts the limiting rods, it moves into position.

[0069] A roller assembly (not shown in the figure) is also provided on the sliding member 23 at a position between two adjacent blade positioning mechanisms 22. The roller assembly includes a roller frame and a roller rotatably mounted on the roller frame. The axis of the roller extends in the front-back direction. The ground pile pipe conveyed by the ground pile pipe conveying mechanism 5 is gradually moved to the support member 224 of the blade positioning mechanism 22 through the roller.

[0070] A ground pile pipe limiting mechanism 24 is provided at one end of the sliding member 23 near the ground pile pipe conveying mechanism 5, such as Figure 8 As shown, the ground pile tube limiting mechanism 24 includes a limiting bracket 241 fixed on the sliding member 23, a limiting cylinder 242 mounted on the limiting bracket 241, and a stop rod 243 connected to the piston rod end of the limiting cylinder 242. When the ground pile tube is delivered to the blade positioning mechanism 22 by the ground pile tube conveying mechanism 5 and before it is clamped by the crank arm 2273, the piston rod of the limiting cylinder 242 extends, and the ground pile tube is manually pushed towards the stop rod 243, so that one end of the ground pile tube abuts against the stop rod 243. Then, the crank arm 2273 clamps the ground pile tube. This ensures that the end position of each ground pile tube moved from the blade positioning mechanism 22 to the ground pile tube positioning mechanism 21 is the same.

[0071] like Figure 1 and Figure 9 As shown, the main frame 1 of the equipment includes a crossbeam 11 extending in the left-right direction, and a guide rail 12 extending in the left-right direction is fixedly installed on the crossbeam 11. The blade welding assembly 3 includes a plurality of welding units 31 that are movably mounted on the guide rail 12 in the left-right direction. The number of welding units 31 is the same as the number of blades to be welded on the same ground pile pipe.

[0072] In this embodiment, as Figure 10 As shown, each welding unit 31 includes a base 311, an outer mounting base 314, an inner mounting base 313, a spring buffer mechanism 316, a follower assembly 318, a power mechanism 317, and a welding torch. The base 311 slides in the left-right direction with the guide rail 12; the power mechanism 317 is fixed to the base 311 via a power adapter plate. Figure 16 As shown, the power mechanism 317 includes a motor plate 3173 connected to the power adapter plate, a power motor 3171 mounted on the motor plate 3173, and a gear 3172 mounted on the output shaft of the power motor 3171. The power motor 3171 is a servo motor. A rack 13 that meshes with the gear 3172 is mounted on the crossbeam 11. When the power motor 3171 is started, the gear 3172 meshes with the rack 13, allowing the base 311 to move left and right on the guide rail 12, thereby realizing the left and right position adjustment of the entire welding unit 31 on the guide rail 12.

[0073] like Figure 10As shown, the base 311 is provided with two vertical slide rails arranged in parallel on the left and right sides, and the inner mounting seat 313 is slidably assembled on the two vertical slide rails. A lifting cylinder 312 is provided on the base 311 above the inner mounting seat 313. The piston rod end of the lifting cylinder 312 is connected to a cylinder adapter plate, which is connected to the inner mounting seat 313, thereby realizing the lifting and lowering of the inner mounting seat 313 through the lifting cylinder 312.

[0074] The inner mounting base 313 is provided with two horizontal slide rails arranged parallel to each other vertically, and the outer mounting base 314 is slidably assembled between the two horizontal slide rails. For example... Figure 12 and Figure 13 As shown, a spring buffer mechanism 316 is disposed between the inner mounting base 313 and the outer mounting base 314, and includes a first connecting base 3161, a second connecting base 3162, a guide shaft 3163, and a compression spring 3164. Two first connecting bases 3161 are spaced parallel to each other on the left and right sides and are both fixed to the inner mounting base 313. The second connecting base 3162 is fixed to the outer mounting base 314. The guide shaft 3163 connects the two first connecting bases 3161. The compression spring 3164 is sleeved on the guide shaft 3163, with one end abutting against one of the first connecting bases 3161 and the other end abutting against the second connecting base 3162. The second connecting base 3162 slides with the guide shaft 3163 in the left-right direction. Buffers are fixed to the left and right ends of the outer mounting base 314 via buffer mounting plates 3165 on the inner mounting base 313, respectively, to buffer and limit the movement of the outer mounting base 314 relative to the inner mounting base 313.

[0075] like Figure 10 and Figure 11 As shown, the follower assembly 318 is integrally mounted on the outer mounting base 314, including a follower plate 3181, a mounting shaft 3182, a follower shaft 3183, a clamping plate 3184, and a guide member 3185. The follower plate 3181 is fixed to the outer mounting base 314 and its installation height can be adjusted. The mounting shaft 3182 is rotatably mounted on the follower plate 3181 about an axis extending in the front-rear direction. The follower shaft 3183 passes perpendicularly through the mounting shaft 3182 and is fixed to the mounting shaft 3182 by bolts. The clamping plate 3184 is fixed to the lower end of the follower shaft 3183. The guide member 3185 is a single shaft, with two shafts symmetrically arranged on both radial sides of the follower shaft 3183. The guide member 3185 is fixed by the clamping plate 3184. The guide member 3185 can rotate under the action of the mounting shaft 3182. When welding the blade, the guide member 3185 abuts against the side of the blade, and its end contacts the ground pile pipe. The form of guide 3185 is not limited to a shaft; it can also be a guide wheel, block, or other structure.

[0076] like Figure 10 As shown, there are two welding torches: a first welding torch 315 and a second welding torch 322. Figure 14and Figure 15 As shown, the outer mounting base 314 is provided with a horizontal automatic adjustment mechanism 321. The horizontal automatic adjustment mechanism 321 includes a clamping cylinder 3211 and a welding gun clamping plate 3212 connected to the end of the piston rod of the clamping cylinder 3211. The welding gun clamping plate 3212 is slidably assembled with the outer mounting base 314 in the left and right directions to adjust the position of the first welding gun 315 in the left and right directions. A first manual lifting adjustment mechanism 319 is installed on the welding torch clamping plate 3212. The first manual lifting adjustment mechanism 319 is a screw-nut mechanism, comprising two first fixed blocks 3191 arranged parallel to each other vertically, a first screw 3192 rotatably mounted on one of the first fixed blocks 3191, two first guide shafts 3193 symmetrically arranged on the left and right sides of the first screw 3192, a first handwheel 3194 connected to the upper end of the first screw 3192, and a first slider 3195 located between the two first fixed blocks 3191 and threadedly connected to the first screw 3192. The first slider 3195 slides vertically with the first guide shafts 3193. A first welding torch adapter plate 324 is connected to the first slider 3195, and the mounting height of the first welding torch adapter plate 324 on the first slider 3195 is adjustable. A first welding torch clamping block 325 is rotatably mounted on the first welding torch adapter plate 324 about an axis extending in the front-back direction. The first welding torch clamping block 325 is used to clamp the first welding torch 315. The first welding torch clamp 325 can adjust the angle of the first welding torch 315, the lifting manual adjustment mechanism can finely adjust the height of the first welding torch 315, the first welding torch adapter plate 324 can coarsely adjust the height of the first welding torch 315, and the clamping cylinder 3211 can coarsely adjust the left and right positions of the first welding torch 315.

[0077] like Figure 14 and Figure 15As shown, a second lifting manual adjustment mechanism 323 is installed on the outer mounting base 314 near the buffer mounting plate of the power motor 3171. The second lifting manual adjustment mechanism 323 has the same structure as the first lifting manual adjustment mechanism 319, including two second fixed blocks 3231 arranged parallel to each other, a second lead screw 3232 rotatably assembled between one of the second fixed blocks 3231, two second guide shafts 3233 symmetrically arranged on the left and right sides of the second lead screw 3232, a second handwheel 3234 connected to the upper end of the second lead screw 3232, and a second slider 3235 located between the two second fixed blocks 3231 and threadedly connected to the second lead screw 3232. The second slider 3235 and the second guide shaft 3233 slide in the vertical direction. A horizontal manual adjustment mechanism 320 is installed on the second slider 3235. This mechanism is also a screw-nut transmission mechanism, comprising a horizontal fixed plate 3201 fixed to the second slider 3235, third fixed blocks 3202 parallel to each other on the horizontal fixed plate 3201, a third screw 3203 rotatably mounted on one of the third fixed blocks 3202, two third guide shafts 3204 symmetrically arranged on the upper and lower sides of the third screw 3203, a third handwheel 3205 connected to the left end of the third screw 3203, and a third slider 3206 located between the two third fixed blocks 3202 and threadedly connected to the third screw 3203. A second welding torch adapter plate 326 is connected to the third slider 3206, and the mounting height of the second welding torch adapter plate 326 on the third slider 3206 is adjustable. A second welding torch clamping block 327 is rotatably mounted on the second welding torch adapter plate 326 about an axis extending in the front-back direction. The second welding torch clamping block 327 is used to clamp the second welding torch 322. The second welding torch clamp 327 can adjust the angle of the second welding torch 322, the second lifting manual adjustment mechanism 323 can finely adjust the height of the second welding torch 322, the second welding torch adapter plate 326 can coarsely adjust the height of the second welding torch 322, and the horizontal manual adjustment mechanism 320 can finely adjust the left and right positions of the second welding torch 322.

[0078] Each external mounting bracket 314 is also connected to a fixed shaft extending in the front-to-back direction. The ends of the fixed shaft are connected to two hinged arc-shaped baffles 329, such as... Figure 1 As shown, the arc flash baffle 329 is used to block welding arc light and reduce arc light hazards. Figure 10 As shown, each welding unit 31 is also equipped with two grounding mechanisms 330, each of which includes a copper brush that contacts the grounding pipe.

[0079] like Figure 1As shown, the unloading rack 6 has an inclined unloading ramp. One end of the unloading ramp extends in the front-back direction to a position that passes the ground pile positioning mechanism 21. After the ground pile positioning mechanism 21 releases the ground pile positioning, the welded ground pile can fall on the unloading ramp and roll down along the unloading ramp.

[0080] The working process of the photovoltaic spiral ground pile blade welding equipment of this utility model is as follows:

[0081] Multiple pile tubes are lined up on the feeding rack 41. Under the action of the top-feeding cylinder 42 and the feeding cylinder 43, they fall one by one along the baffle onto the chain conveyor mechanism 52. They are then transported by the chain conveyor mechanism 52 and the rollers to the support members 224 on each blade positioning mechanism 22. At this time, the limit cylinder 242 is opened, the stop rod 243 extends, and the end of the pile tube is manually placed against the stop rod 243. The pusher 2271 is then activated, causing the crank arm to flip upward and clamp the pile tube. After that, the blades are manually installed on the pile tubes, and the positioning is achieved by the positioning groove in the blade positioning mechanism 22 and the pusher 226. After the blades are positioned, the push-pull cylinder 16 pulls the sliding member 23 to move the pile tube and the blades between the first positioning member 211 and the second positioning member 212. Under the pressure of 218, the first positioning member 211 and the second positioning member 212 clamp the two ends of the ground pile pipe respectively; the welding unit 31, whose welding gun angle and height have been adjusted in advance, moves left and right along the rail 12 to the corresponding blade under the action of the power mechanism 317, and at least one guide member 3185 abuts against the blade and contacts the surface of the ground pile pipe; the drive motor drives the ground pile pipe and the blade to rotate, and the two welding guns spot weld the blade. During spot welding, the compression spring 3164 is in a compressed state. After spot welding, the position of the blade is fixed. At this time, the push member 2271 moves to make the crank arm flip, the push member 226 retracts and the push-pull cylinder 16 extends, and the blade positioning mechanism 22 is removed from the ground pile pipe and the blade; then each welding unit 31 is adjusted to a certain position, and the ground pile pipe rotates at the same time, and the two welding guns further weld. Because the blades are spiral-shaped, the contact position between the guide 3185 and the blades changes as the ground pile pipe rotates. However, under the elastic force of the spring buffer mechanism 316, the guide 3185 remains in contact with the blades. Thus, the rotation of the blades exerts a force on the guide 3185, which is transmitted through the guide 3185 to the outer mounting base 314. This causes the outer mounting base 314 to move the two welding torches horizontally, automatically compensating 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 and that the heads of the two welding torches are always aligned with the welding position. After the welding operation is completed, the lifting cylinder 312 drives the inner mounting base 313 to rise, while the first cylinder 217 and the second cylinder 218 retract, and the welded ground pile pipe falls onto the unloading rack 6. By repeating the above process, automated welding of the ground pile pipe and the blades can be achieved.

[0082] This invention ensures accurate welding torch positioning during each welding operation, improving welding efficiency and quality, while maximizing automation.

[0083] Example 2 of the photovoltaic spiral ground pile blade welding equipment provided by this utility model:

[0084] Its main difference from Example 1 is:

[0085] In Example 1, each welding unit is equipped with a power mechanism.

[0086] In this embodiment, all welding units are equipped with a single power mechanism, meaning that one power mechanism simultaneously drives all welding units to move synchronously. Each welding unit is equipped with an adjustable distance seat, and each adjustable distance seat has an adjustable distance tube inserted through it. The adjustable distance seat can clamp and release the adjustable distance tube. A tube seat that slides with the adjustable distance tube is provided on the main frame of the equipment. The adjustable distance seat on the welding unit can slide relative to the adjustable distance tube to adjust the distance between adjacent welding units. By fastening the adjustable distance seat on the welding unit to the adjustable distance tube, the welding units can be connected relative to each other through the adjustable distance tube. The power mechanism is fixed to one of the welding units, and the power mechanism still adopts the form of a power motor plus gears as described in the previous embodiment. During the actual welding process, the spring buffer mechanism in each welding unit responds to changes in the blades.

[0087] Example 3 of the photovoltaic spiral ground pile blade welding equipment provided by this utility model:

[0088] Its main difference from Example 1 is:

[0089] In Example 1, the positioning unit includes a separately arranged ground pile pipe positioning mechanism and a blade positioning mechanism.

[0090] In this embodiment, the pile pipe positioning mechanism and the blade positioning mechanism are integrated together, rather than arranged separately. Both the pile pipe positioning mechanism and the blade positioning mechanism are mounted on the same sliding member, but the blade positioning mechanism is movably assembled with the sliding member in the front-to-back direction, allowing it to retract after spot welding without affecting subsequent welding. That is, the pile pipe positioning mechanism and the blade positioning mechanism can move synchronously back and forth, but the blade positioning mechanism itself can also move independently back and forth. To meet the above conditions, the pile pipe conveying mechanism is located behind the sliding member, conveying the pile pipe from back to front to the blade positioning mechanism. Correspondingly, the pile pipe conveying mechanism includes multiple chain conveying mechanisms arranged at intervals in the left-to-right direction.

[0091] 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.

[0092] 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.

[0093] 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 spiral ground pile blade welding equipment, comprising a main frame and a positioning unit and a blade welding assembly mounted on the main frame, wherein the positioning unit is used to position the ground pile tube and the blade and drive them to rotate, and the blade welding assembly is used to weld the blade to the ground pile tube, characterized in that, The blade welding assembly includes multiple welding units that are movably assembled on the main frame of the equipment in a direction parallel to the ground pile pipe. Each welding unit includes a welding torch, an outer mounting base, a liftable inner mounting base, a spring buffer mechanism, and a follower 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 slide in a direction parallel to the ground pile pipe, and a spring buffer 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 blade. During the rotation of the blade, at least one guide is always in contact with the blade under the elastic force of the spring buffer mechanism, and rotates under the push of the blade while driving the outer mounting base to move in a direction parallel to the ground pile pipe so that the head of the welding torch is always aligned with the welding position of the blade.

2. The photovoltaic spiral ground pile blade welding equipment according to claim 1, characterized in that, The follower assembly further 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 clamping plate is connected to the end of the follower shaft. The guide is clamped on the clamping plate at least on one side of the radial direction of the follower shaft.

3. The photovoltaic spiral ground pile blade welding equipment according to claim 1, 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 main frame of the equipment are movably assembled in the direction parallel to the ground pile pipe. The power mechanism is driven by the main frame of the equipment to drive the welding unit to move horizontally.

4. The photovoltaic spiral ground pile blade welding equipment according to claim 2 or 3, characterized in that, The spring buffer mechanism includes 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 ground pile pipe.

5. The photovoltaic spiral ground pile blade welding equipment according to claim 2 or 3, characterized in that, The welding gun is provided in two parts, and the distance between the two welding guns in the direction parallel to the ground pile pipe is adjustable.

6. The photovoltaic spiral ground pile blade welding equipment according to any one of claims 1-3, characterized in that, The positioning unit includes a separately arranged ground pile tube positioning mechanism and a blade positioning mechanism. The ground pile tube positioning mechanism is movably assembled on the main frame of the equipment in a direction parallel to the ground pile tube, and is used to position the ground pile tube from both ends and drive the ground pile tube to rotate. The blade positioning mechanism is movably assembled on the main frame of the equipment in a direction perpendicular to the ground pile tube, and is used to position the blade and press the ground pile tube. The photovoltaic spiral ground pile blade welding equipment also includes a ground pile tube conveying mechanism corresponding to the blade positioning mechanism, which is used to convey the ground pile tube to the blade positioning mechanism.

7. The photovoltaic spiral ground pile blade welding equipment according to claim 6, characterized in that, The ground pile tube positioning mechanism includes a first positioning member for positioning and inserting into the ground pile tube cavity and a second positioning member for positioning and inserting the pointed cone portion of the ground pile tube. At least one of the first and second positioning members is driven by a drive assembly for driving both to rotate synchronously. The blade positioning mechanism includes a positioning seat with a positioning groove, a jacking member that can move in the direction parallel to the ground pile tube, a support member, and a pressing mechanism. The positioning groove is for placing one end of the blade, the jacking member is for pressing the other end of the blade, the support member is for supporting the ground pile tube, and the pressing mechanism is for pressing the ground pile tube in the direction perpendicular to the ground pile tube.

8. The photovoltaic spiral ground pile blade welding equipment according to claim 7, characterized in that, The positioning seat includes an upright plate and a flat plate vertically connected to the upright plate. A stop is installed on the flat plate, and the space between the stop and the upright plate and the flat plate forms the positioning groove. The clamping mechanism is used to clamp the ground pile pipe to the end of the upright plate and / or the flat plate.

9. The photovoltaic spiral ground pile blade welding equipment according to claim 8, characterized in that, The positioning base also includes a base plate and a vertical plate, the base plate being perpendicularly connected to the vertical plate and the upright plate, and the vertical plate being perpendicular to the upright plate; the clamping mechanism includes a crank arm hinged to the vertical plate, the crank arm having a clamping surface for clamping the ground pile pipe, and a pusher hinged to the base plate, the pusher end of the pusher being hinged to the crank arm to drive the crank arm to rotate.

10. The photovoltaic helical ground pile blade welding equipment according to any one of claims 7-9, characterized in that, It also includes a ground pile pipe feeding mechanism and a material unloading rack. The ground pile pipe feeding mechanism is used to feed the ground pile pipes to be welded one by one to the ground pile pipe conveying mechanism. The material unloading rack has an inclined material unloading ramp. One end of the material unloading ramp extends into the position that passes the ground pile pipe positioning mechanism in the direction perpendicular to the ground pile pipe, so that the ground pile pipe after welding is completed can roll down after the ground pile pipe positioning mechanism releases the ground pile pipe positioning.

Images