Photovoltaic ground pile nut welding equipment

Abstract

The invention belongs to the technical field of photovoltaic ground pile manufacturing, and particularly relates to photovoltaic ground pile nut welding equipment which comprises a ground pile pipe feeding unit, a nut feeding unit, a ground pile pipe positioning and clamping unit and a nut welding unit. The ground pile pipe positioning and clamping unit comprises a positioning frame, a first positioning piece used for being inserted into a pipe cavity of the ground pile pipe in a positioning mode and a second positioning piece used for being inserted into a pointed cone part of the ground pile pipe in a positioning mode. The first driving mechanism is in transmission connection with the first positioning piece to drive the first positioning piece to rotate; the second driving mechanism is in transmission connection with the second positioning piece to drive the second positioning piece to synchronously rotate with the first positioning piece; and at least one of the first driving mechanism and the second driving mechanism is movably assembled on the positioning frame, so that the first positioning piece and the second positioning piece clamp the ground pile pipe. According to the photovoltaic ground pile nut welding device, nut welding operation can be conducted on a photovoltaic ground pile pipe subjected to drilling and pointed cone forming, and the overall quality of a photovoltaic ground pile is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic ground pile manufacturing, and in particular relates to a photovoltaic ground pile nut welding device. Background Art

[0002] With the growth of clean energy demand at home and abroad, the market demand for photovoltaic power generation equipment is increasing, and the application scenarios of photovoltaic power generation are also increasing. Photovoltaic ground piles are buried underground as supporting components for photovoltaic power generation. They are specially used to fix the photovoltaic module brackets in solar photovoltaic power generation systems. They can evenly transfer the weight of photovoltaic modules and their brackets to the ground, ensuring that the entire photovoltaic power generation system can remain stable under various weather conditions and prevent safety accidents such as tilting and collapse.

[0003] There are usually multiple nuts welded near the end of the photovoltaic pile. The design of the welded nuts allows the installer to quickly fix the photovoltaic panel by simply screwing the bolts into the welded nuts, which simplifies the installation steps, reduces the installation time, and thus reduces the overall construction cost. In addition, the nuts and the photovoltaic pile pipe are welded to form a whole, which effectively enhances the stability of the photovoltaic pile, ensures the safe operation of the photovoltaic system, and also provides great convenience for later maintenance.

[0004] At present, the welding of the three nuts on the photovoltaic piles is done by ring welding. Workers manually place the holes for welding nuts on the photovoltaic pile tubes on the positioning protrusions of the welding equipment, then manually place the nuts, and then control the welding equipment to perform automatic ring welding. After welding the three nuts in sequence, they are manually unloaded and stacked. When using the above production process, workers need to place nuts continuously and rotate the photovoltaic pile tubes, which is labor-intensive, has low production efficiency, and high labor costs.

[0005] To solve the above problems, the Chinese invention patent document with the authorization announcement number CN102699514B discloses an automatic nut welding device for spiral ground pile production, which includes multiple high-frequency welding machines arranged in parallel and matching nut (i.e. nut) conveying devices. A frame B is set on the feeding side of the multiple high-frequency welding machines, and multiple feeding manipulators, multiple welding manipulators, a feeding device and a discharging device are arranged on the frame B. Multiple feeding manipulators and multiple welding manipulators are set one by one with multiple high-frequency welding machines. Multiple welding manipulators are set on one side of the frame B close to the high-frequency welding machine, and multiple feeding manipulators are set on the opposite side. The photovoltaic ground pile pipe is transported by the conveying device and placed on the feeding table. The feeding manipulator clamps and positions the photovoltaic ground pile pipe and sends it to the position of the high-frequency welding machine. The nut conveying device sends the nut to the punching position on the photovoltaic ground pile pipe, and the welding operation is performed by the welding manipulator.

[0006] The above-mentioned automatic nut welding equipment for spiral ground pile production can realize automatic welding of nuts on photovoltaic ground pile pipes, solving the problems of high labor intensity, low work efficiency and high labor cost caused by manually placing nuts and rotating pipes; however, since the above-mentioned automatic nut welding equipment for spiral ground pile production is arranged before the two processes of the automatic forming equipment of the pointed cone part, the automatic drilling equipment and the automatic sheet-piercing equipment, after the nut welding is completed, the subsequent processes such as the pointed cone part forming are carried out, which may cause collision and damage to the welded nuts during the processing, resulting in problems such as deformation of the nuts or loosening of the welding points, affecting the overall quality of the photovoltaic ground piles. Therefore, the present invention provides a device for welding nuts to photovoltaic ground pile pipes that have been drilled and formed with pointed cones. Summary of the invention

[0007] The purpose of the present invention is to provide a photovoltaic ground pile nut welding device, which can perform nut welding operations on photovoltaic ground pile pipes that have been drilled and cone-shaped, so as to ensure the overall quality of the photovoltaic ground piles.

[0008] In order to solve the above problems, the photovoltaic ground pile nut welding equipment provided by the present invention adopts the following technical solutions: A photovoltaic ground pile nut welding device comprises a ground pile pipe feeding unit, a nut feeding unit, a ground pile pipe positioning clamping unit and a nut welding unit, wherein the ground pile pipe feeding unit and the nut feeding unit are respectively located at the front and rear sides of the ground pile pipe positioning clamping unit, and the nut welding unit is located above the ground pile pipe positioning clamping unit and corresponds to the position where the nut is to be welded; The ground pile pipe positioning and clamping unit comprises a positioning frame, a first positioning member for positioning and inserting into the ground pile pipe cavity, a second positioning member for positioning and inserting the pointed cone portion of the ground pile pipe, a first driving mechanism connected to the first positioning member for driving the first positioning member to rotate, and a second driving mechanism connected to the second positioning member for driving the second positioning member to rotate synchronously with the first positioning member; at least one of the first driving mechanism and the second driving mechanism is movably assembled on the positioning frame so that the first positioning member and the second positioning member clamp the ground pile pipe. The beneficial effects of the present invention are as follows: the ground pile pipe that has been subjected to the formation of a pointed cone and the drilling is sent to the ground pile pipe positioning and clamping unit through the ground pile pipe feeding unit, and the ground pile pipe is positioned by inserting the first positioning member and the second positioning member into the two ends of the ground pile pipe respectively, and the ground pile pipe is clamped by the first driving mechanism and / or the second driving mechanism that can be movable relative to the positioning frame, and the ground pile pipe can be driven to rotate at the same time; the nut feeding unit sends the nut to the welding hole position of the ground pile pipe, and the nut welding unit performs a ring welding process on the nut and the ground pile pipe. The present invention can realize the accurate positioning, secure clamping, and nut welding operation of the ground pile pipe with the formed pointed cone and the drilled hole, and greatly reduces the possibility of nut deformation and welding point loosening under the condition of meeting the automation.

[0009] Furthermore, the first driving mechanism and the second driving mechanism are both movably mounted on the positioning frame, and the ground pile pipe positioning clamping unit also includes a sensor arranged between the first driving mechanism and the second driving mechanism, and the sensor is used to detect the welding hole position for welding the nut on the ground pile pipe.

[0010] Beneficial effects: The sensor can accurately locate the welding holes on the ground pile pipe. In addition, when the first driving mechanism and the second driving mechanism are both movable, they can adapt to ground pile pipes of different lengths. At the same time, the pressure can be dispersed when the first positioning member and the second positioning member clamp the ground pile pipe, avoiding damage to the ground pile pipe due to excessive extrusion when clamping the ground pile pipe caused by the movement of a single driving mechanism.

[0011] Furthermore, the first driving mechanism and the second driving mechanism have the same structure, both of which include a servo motor, a gear transmission assembly and a transmission shaft that are transmission-connected together, and the first positioning member and the second positioning member are coaxially mounted on the corresponding transmission shaft; the bottom of the servo motor is provided with a motor seat that slides with the positioning frame, and the positioning frame is provided with a linear pushing member connected to the motor seat, and the linear pushing member is used to push the corresponding motor seat to move left and right.

[0012] Beneficial effects: The first driving mechanism and the second driving mechanism with the same structure are adopted, which reduces the design and procurement costs and facilitates unified installation.

[0013] Furthermore, a plurality of rolling assemblies are arranged at intervals on the left and right sides of the positioning frame between the first positioning member and the second positioning member; the rolling assembly includes a rolling support plate and a rolling push member, the rolling support plate has a blanking support surface and a feeding rolling surface arranged in sequence in the front-to-back direction and spaced in the up-and-down direction, the rolling support plate forms a positioning stop surface for stopping the ground pile pipe at a position between the blanking support surface and the feeding rolling surface; the blanking support surface is used to support the ground pile pipe dropped from the ground pile pipe loading unit, and the feeding rolling surface is arranged to be inclined downward from front to back; the rolling push member is installed on the side of the blanking support surface, and is used to push the ground pile pipe on the blanking support surface upward to make it fall onto the feeding rolling surface.

[0014] Beneficial effects: the rolling assembly can position the ground pile pipe between the first positioning piece and the second positioning piece through the positioning stop surface, and can deliver the ground pile pipe after the nut is welded through the feeding rolling surface and the rolling push piece; it realizes dual-purpose in one body and has a simple structure.

[0015] Furthermore, the installation position of the rolling support plate on the positioning frame is adjustable.

[0016] Beneficial effects: It can support, position and transport ground pile pipes of different lengths, thereby improving the versatility of the entire equipment.

[0017] Furthermore, the ground pile pipe feeding unit includes a feeding rack, a feeding lifting mechanism, a feeding alignment mechanism and a feeding lifting mechanism. The feeding rack is provided with a baffle that cooperates with the nut end of the ground pile pipe to stop. The feeding rack is provided with a cache station and an alignment station arranged in a front-to-back sequence and spaced up and down. The feeding lifting mechanism is arranged below the cache station, and is used to push the ground pile pipe at the cache station upward so that it falls at the alignment station; the feeding alignment mechanism is arranged between the feeding lifting mechanism and the feeding lifting mechanism, and is used to align the nut ends of the ground pile pipe at the alignment station to the baffle; the feeding lifting mechanism is arranged at the alignment station, and is used to lift the ground pile pipe onto the drop support surface.

[0018] Beneficial effects: The ground pile pipe feeding unit can make the ground pile pipes queue up at the buffer station to adapt to the production speed of different processes; at the alignment station, the ground pile pipes are aligned to the baffle, so that one end of the ground pile pipe transported from the alignment station to the rolling assembly maintains a uniform position, thereby reducing the frequent adjustment of the positions of the first drive mechanism and the second drive mechanism.

[0019] Furthermore, the loading rack includes a base frame, two brackets vertically connected to the base frame and arranged at intervals on the left and right, and a loading plate respectively connected to the two brackets, each loading plate is equipped with the feeding lifting mechanism, the loading alignment mechanism and the loading lifting mechanism; the loading plate is provided with a first material blocking surface, a second material blocking surface and a loading inclined surface, the loading inclined surface is located above the bracket and connects the first material blocking surface and the second material blocking surface; the loading rack forms the cache station at the position of the first material blocking surface, and forms the alignment station at the intersection of the second material blocking surface and the loading inclined surface.

[0020] Beneficial effects: a single loading plate can be used to simultaneously install multiple mechanisms and realize multiple functions, making the assembly structure more compact and reducing the material used and space occupied by the chassis.

[0021] Furthermore, the distance between the two brackets is adjustable.

[0022] Beneficial effect: It can transport ground pile pipes of different lengths and has greater versatility.

[0023] Furthermore, the nut feeding unit includes a vibrating plate base, a vibrating plate, a nut feeding mechanism and a nut positioning mechanism; the nut positioning mechanism is installed on the vibrating plate base and arranged at the outlet of the vibrating plate, and is used to position the nuts sent out from the outlet of the vibrating plate; the nut feeding mechanism is located above the nut positioning mechanism, and is used to transfer the nuts positioned by the nut positioning mechanism to the welding holes on the ground pile pipe.

[0024] Beneficial effect: After the nuts are arranged in sequence on the vibration plate, they are first positioned by the nut positioning mechanism and then loaded by the nut loading mechanism, which can ensure that the nuts maintain a good posture and have a precise position and direction during the transportation process, so that they can be accurately transported to the welding holes on the pile pipe.

[0025] Furthermore, the nut positioning mechanism includes a positioning seat that can move in the front-to-back direction, the positioning seat is provided with a positioning opening groove that is adapted to the shape of the nut, and a ejector is movably installed on the positioning seat at a position corresponding to the positioning opening groove along the up-down direction, and the ejector is used to be inserted into the nut; the nut feeding mechanism includes a clamping jaw that can move in the front-to-back direction and the up-and-down direction, and the clamping jaw is used to clamp the nut into which the ejector is inserted.

[0026] Beneficial effects: simple structure and precise positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 It is a schematic diagram of the three-dimensional structure of the photovoltaic ground pile nut welding equipment of the present invention; Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the pile pipe feeding unit in the middle ground; Figure 3 for Figure 2 Structural diagram of the middle loading plate; Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure after the pile pipe positioning clamping unit and the nut welding unit are assembled; Figure 5 for Figure 4 The main view of Figure 6 for Figure 4 A schematic diagram of the assembly between the first driving mechanism, the first positioning member and the first linear push member; Figure 7 for Figure 4 A schematic diagram of the assembly between the second driving mechanism, the second positioning member and the second linear pusher; Figure 8 for Figure 4 A schematic diagram of the structure of the middle roller conveyor assembly; Fig. 9 for Figure 1 The structural diagram of the middle nut feeding unit; Fig.10 for Fig. 9Structural schematic diagram of the middle nut feeding mechanism; Fig.11 for Fig. 9 Schematic diagram of the assembly between the middle vibration plate, the vibration plate base and the nut positioning mechanism; Fig.12 for Fig.11 Enlarged schematic diagram at point A in the middle.

[0028] Description of reference numerals: 1. Ground pile pipe feeding unit; 11. Feeding rack; 111. Base frame; 112. Bracket; 113. Baffle; 114. Feeding plate; 1141. First baffle surface; 1142. Second baffle surface; 1143. First feeding inclined surface; 1144. Feeding slide rail; 1145. Second feeding inclined surface; 115. Bracket slide rail; 116. Bracket slide seat; 12. Feeding lifting mechanism; 121. Feeding lifting cylinder; 121. Feeding lifting plate; 13. Feeding alignment mechanism; 131. Feeding alignment cylinder; 132. Alignment push plate; 133. Alignment guide rod; 14. Feeding lifting mechanism; 2. Nut feeding unit; 21. Vibrating plate base; 22. Vibrating plate; 23. Nut positioning mechanism; 231. Positioning seat; 232. First adjusting cylinder; 233. Positioning cylinder; 234. Ejector pin; 235. Positioning opening slot; 235. Vertical plate; 24. Nut feeding mechanism; 240. Vertical column; 241. Mounting bottom plate; 242. Second adjusting cylinder; 243. Feeding slide rail; 244. Cylinder connecting plate; 245. Slide plate; 246. Lifting cylinder; 247. Mounting plate; 248. Claw cylinder; 249. Claw; 3. Ground pile pipe positioning clamping unit; 30. Positioning frame; 31. First positioning member; 32. Second positioning member; 33. Rolling assembly; 331. Rolling support plate; 3311. Blanking support surface; 3312. Feeding rolling surface; 3313. Positioning stop surface; 332. Rolling push member; 34. First driving mechanism; 341. First servo motor; 342. First gear transmission assembly; 343. First motor seat; 344. First transmission shaft; 35. Second driving mechanism; 351. Second servo motor; 352. Second gear transmission assembly; 353. Second motor seat; 354. Second transmission shaft; 355. Track; 36. First push cylinder; 37. Second push cylinder; 38. Sensor; 39. Carbon brush assembly; 4. Nut welding unit; 5. Ground pile pipe; 6. Nut. DETAILED DESCRIPTION

[0029] 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.

[0030] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0031] Embodiment 1 of a photovoltaic ground pile nut welding device provided by the present invention: like Figure 1 As shown, the photovoltaic ground pile nut welding equipment includes a ground pile pipe feeding unit 1, a nut feeding unit 2, a ground pile pipe positioning and clamping unit 3 and a nut welding unit 4.

[0032] The ground pile pipe feeding unit 1 and the nut feeding unit 2 are respectively located at the front and rear sides of the ground pile pipe positioning clamping unit 3, and the nut welding unit 4 is located above the ground pile pipe positioning clamping unit 3 and corresponds to the position where the nut is to be welded. The ground pile pipe feeding unit 1 is used to transport the ground pile pipe 5 to the ground pile pipe positioning clamping unit 3; the ground pile pipe positioning clamping unit 3 is used to clamp and position the two ends of the ground pile pipe 5; the nut feeding unit 2 is used to transport the nut 6 to the welding hole on the ground pile pipe 5; the nut welding unit 4 is used to press the nut 6 onto the ground pile pipe 5 and perform ring welding on the nut 5.

[0033] Specifically, Figure 2 As shown, the ground pile pipe feeding unit 1 includes a feeding frame 11, a feeding and lifting mechanism 12, a feeding and aligning mechanism 13 and a feeding and lifting mechanism 14.

[0034] Among them, Figure 2 As shown, the loading rack 11 includes a base frame 111, two brackets 112 vertically connected to the base frame 111 and spaced apart from each other on the left and right, and a loading plate 114 respectively connected to the two brackets 112. The base frame 111 is provided with two bracket slide rails 115 spaced apart and parallel to each other in the front and back directions, and the bottom of the bracket 112 away from the nut loading unit 2 is provided with a bracket slide 116 that slides with the bracket slide rail 115. Through the sliding cooperation between the bracket slide 116 and the bracket slide rail 115, the distance between the two brackets 112 can be adjusted, so that the bracket 112 can support and transport ground pile pipes 5 of different lengths. Of course, in other embodiments, the distance between the two brackets 112 can also be fixed, that is, the bracket 112 is fixedly connected to the base frame 111, which is suitable for transporting ground pile pipes 5 of a specific length and subsequent welding of nuts 6. A baffle 113 is connected to the outer side of the top of the bracket 112 near the nut feeding unit 2 for stopping and cooperating with the nut end of the ground pile pipe 5. The tops of the two brackets 112 are arranged tilted downward so that the ground pile pipe 5 can roll backward.

[0035] The loading plate 114 is connected to one side of the bracket 112 close to the ground pile pipe positioning clamping unit 3, and the top of the loading plate 114 extends upward out of the bracket 112. Figure 3 As shown, the loading plate 114 has a first material stop surface 1141, a second material stop surface 1142, a first loading slope 1143 and a second loading slope 1145. The first loading slope 1143 is located above the bracket 112 and connects the first material stop surface 1141 and the second material stop surface 1142, and the second loading slope 1145 connects the second material stop surface 1142. The loading rack 11 forms a buffer station at the position of the first material stop surface 1141, and forms an alignment station at the intersection of the second material stop surface 1142 and the first loading slope 1143. The buffer station is used for the ground pile pipes 5 transported on the bracket 112 to queue up, and the alignment station is used to align the nut ends of the ground pile pipes 5 with the baffle 113.

[0036] like Figure 2 As shown, each loading plate 114 is equipped with a feeding lifting mechanism 12, a loading alignment mechanism 13 and a loading lifting mechanism 14 arranged in sequence from front to back. The feeding lifting mechanism 12 is arranged below the buffer station, and is used to push the ground pile pipe 5 at the buffer station upward so that it falls on the alignment station along the first loading slope 1143. In this embodiment, the feeding lifting mechanism 12 includes a feeding lifting cylinder 121 and a feeding lifting plate 122 connected to the output end of the feeding lifting cylinder 121. The feeding lifting cylinder 121 is fixed on the loading plate 114, as shown in FIG. Figure 3 As shown, a loading slide rail 1144 extending in the up-down direction is connected to the side of the loading plate 114 facing away from the bracket 112, and the feeding lifting plate 122 is slidably matched with the loading slide rail 1144. The top of the feeding lifting plate 122 is a downwardly inclined surface, which is parallel to the first loading inclined surface 1143 and the second loading inclined surface 1145. The distance that the feeding lifting plate 122 extends out of the loading plate 114 is only enough to support one ground pile pipe 5, that is, each time the feeding lifting plate 122 rises, it can only push one ground pile pipe 5.

[0037] The material loading alignment mechanism 13 is arranged between the material feeding lifting mechanism 12 and the material loading lifting mechanism 14, and is used to align the nut ends of the ground pile pipe 5 at the alignment station to the baffle 113. Figure 2As shown, the feeding alignment mechanism 13 includes a feeding alignment cylinder 131 and an alignment push plate 132. The alignment push plate 132 is connected to the driving end of the feeding alignment cylinder 131. The alignment push plate 132 is also connected to an alignment guide rod 133 that cooperates with the feeding plate 114 in the left and right directions. When the alignment push plate 132 moves, it can push the ground pile pipe 5 toward the baffle 113 until the nut end of the ground pile pipe 5 is aligned with the baffle 113.

[0038] The loading and lifting mechanism 14 is arranged at the alignment station and is a loading and lifting cylinder, which is used to lift the ground pile pipe 5 and make it slide from the second loading slope 1145 to the ground pile pipe positioning and clamping unit 3.

[0039] like Figure 4 and Figure 5 As shown, the ground pile pipe positioning clamping unit 3 includes a positioning frame 30, a first positioning member 31, a second positioning member 32, a first driving mechanism 34, a second driving mechanism 35 and a rolling assembly 33. The first positioning member 31 is a cone head, which is used for positioning and inserting into the ground pile pipe cavity; the second positioning member 32 is a sleeve, which is used for positioning and inserting the pointed cone part of the ground pile pipe 5, and the cone head is coaxially arranged with the sleeve.

[0040] like Figure 6 As shown, the first driving mechanism 34 includes a first servo motor 341, a first gear transmission assembly 342 and a first transmission shaft 344. A first motor seat 343 is installed at the bottom of the first servo motor 341. The first motor seat 343 is provided with a bearing seat and a bearing for assembling the first transmission shaft 344. The first positioning member 31 is coaxially connected with the first transmission shaft 344. The first servo motor 341 drives the first transmission shaft 344 to rotate through the first gear transmission assembly 342, thereby driving the first positioning member 31 to rotate.

[0041] like Figure 7 As shown, the second drive mechanism 35 has the same structure as the first drive mechanism 34. The second drive mechanism 35 includes a second servo motor 351, a second gear transmission assembly 352 and a second transmission shaft 354. A second motor seat 353 is installed at the bottom of the second servo motor 351. The second motor seat 353 is provided with a bearing seat and a bearing for assembling the second transmission shaft 354. The second positioning member 32 is coaxially connected with the second transmission shaft 354. The second servo motor 351 drives the second transmission shaft 354 to rotate through the second gear transmission assembly 352, thereby driving the second positioning member 32 to rotate. A grounding carbon brush assembly 39 is installed above the first transmission shaft 344 and the second transmission shaft 354. A compression spring is provided inside the grounding carbon brush assembly 39. A carbon brush is installed below the compression spring. The compression spring mainly presses down the carbon brush so that the carbon brush is close to the corresponding transmission shaft to ensure that the welding ground wire is connected.

[0042] In this embodiment, Figure 7As shown, tracks 355 are provided at positions corresponding to the first motor seat 343 and the second motor seat 353 on the positioning frame 30, and the bottoms of the first motor seat 343 and the second motor seat 353 are connected with sliders that slide with the corresponding tracks. The positioning frame 30 is equipped with a first push cylinder 36 and a second push cylinder 37. The first push cylinder 36 is connected to the first motor seat 343 to push the first motor seat 343 and the first positioning member 31 thereon to move left and right; the second push cylinder 37 is connected to the second motor seat 353 to push the second motor seat 353 and the second positioning member 32 thereon to move left and right, thereby enabling the first positioning member 31 and the second positioning member 32 to position and clamp the ground pile pipe 5. Driven by two servo motors, the ground pile pipe 5 can be rotated. Of course, in other embodiments, one of the motor seats can be fixed, and the other motor seat can slide relative to the positioning frame 30 for position adjustment, so as to ensure the positioning and clamping of the ground pile pipe 5.

[0043] like Figure 4 and Figure 6 As shown, a sensor 38 is also provided on the positioning frame 30 beside the first motor seat 343, and the sensor 38 is used to detect the welding hole position for welding the nut on the ground pile pipe 5. A protective structure is provided outside the sensor 38 to protect the sensor 38 from damage by welding slag.

[0044] like Figure 4 and Figure 8 As shown, the rolling assembly 33 is located between the first positioning member 31 and the second positioning member 32, and is detachably connected to the positioning frame 30, and can adjust the installation position on the positioning frame 30 to adapt to different lengths of the ground pile pipe 5. In this embodiment, the rolling assembly 33 includes a rolling support plate 331 and a rolling push member 332. The rolling support plate 331 has a blanking support surface 3311 and a feeding rolling surface 3312 arranged in sequence in the front-to-back direction and spaced in the up-and-down direction. The rolling support plate 331 forms a positioning stop surface 3313 for stopping the ground pile pipe at a position between the blanking support surface 3311 and the feeding rolling surface 3312. The blanking support surface 3311 is inclined downward from front to back, and is used to support and transport the ground pile pipe dropped from the ground pile pipe loading unit 1. The feeding rolling surface 3312 is arranged downward from front to back. The rolling and pushing member 332 is a cylinder installed beside the material dropping support surface 3311 and is used to push the ground pile pipe 5 on the material dropping support surface 3311 upward obliquely to make it fall onto the feeding rolling surface 3312 .

[0045] like Fig. 9As shown, the nut feeding unit 2 includes a vibration plate base 21, a vibration plate 22, a nut feeding mechanism 24 and a nut positioning mechanism 23. The vibration plate 22 is a prior art, which can neatly arrange and output the nuts 6. The nut positioning mechanism 23 is installed on the vibration plate base 21 and is arranged at the outlet of the vibration plate 22, and is used to position the nuts 6 sent out from the outlet of the vibration plate 22.

[0046] In this embodiment, Fig.11 and Fig.12 As shown, the nut positioning mechanism 23 includes a vertical plate 235, a first adjusting cylinder 232, a positioning seat 231 and a positioning cylinder 233. The vertical plate 235 is vertically connected to the vibration plate base 21, the first adjusting cylinder 232 is fixed on the top of the vertical plate 235, and the output end of the first adjusting cylinder 232 is connected to the positioning seat 231 to drive the positioning seat 231 to move forward and backward. The positioning seat 231 is provided with a positioning opening groove 235 that is adapted to the shape of the nut 6. When the positioning seat 231 moves to the outlet of the vibration plate 22, the nuts 6 neatly arranged from the vibration plate 22 will enter the positioning opening groove 235. The positioning seat 231 is a U-shaped seat, and a positioning cylinder 233 is installed inside. The output end of the positioning cylinder 233 is connected to a ejector pin 234, and the ejector pin 234 passes through the positioning opening groove 235 to extend into the nut 6 to lift the nut 6.

[0047] like Fig. 9 and Fig.10 As shown, the nut feeding mechanism 24 is located above the nut positioning mechanism 23, and is used to transfer the nut 6 positioned by the nut positioning mechanism 23 to the welding hole position on the ground pile pipe 5. In this embodiment, the nut feeding mechanism 24 includes two columns 240 arranged at intervals in the front-to-back direction, and the columns 240 are vertically connected to the vibration plate base 21. The tops of the two columns 240 are connected to a mounting base plate 241, and the mounting base plate 241 is fixed with a second adjustment cylinder 242 and a feeding slide rail 243 extending in the front-to-back direction. The output end of the second adjusting cylinder 242 is connected to a cylinder connecting plate 244, and a slide plate 245 slidingly matched with the feeding slide rail 243 is fixed below the cylinder connecting plate 244. A lifting cylinder 246 is fixed to the end of the slide plate 245 away from the second adjusting cylinder 242. The output end of the lifting cylinder 246 faces downward and is connected to a mounting plate 247, and a clamping cylinder 248 is fixed on the mounting plate 247. The output end of the clamping cylinder 248 is connected to a clamping claw 249 for clamping the nut 6 lifted by the above-mentioned ejector pin 234.

[0048] The nut welding unit 4 is prior art and includes semi-automatic welding equipment.

[0049] The working process of the photovoltaic ground pile nut welding equipment of the present invention is: The ground pile pipe 5 to be welded slides down to the buffer station along the bracket 112, the feeding jacking cylinder 121 jacks up the ground pile pipe 5 to make it fall on the alignment station, the feeding alignment cylinder 131 retracts to align the nut end of the ground pile pipe 5 with the baffle 113, and after alignment, the feeding alignment cylinder 131 extends out, and the feeding jacking mechanism 14 acts to lift the aligned ground pile pipe 5 and make it slide onto the rolling support plate 331, and slide to the positioning stop surface 3313; at this time, the first pushing cylinder 36 and the second pushing cylinder 37 act, so that the first positioning member 31 and the second positioning member 32 respectively position and clamp the ground pile pipe 5; the first servo motor 341 and the second servo motor 351 drive the ground pile pipe 5 to rotate, and in this process, the sensor 38 detects the welding hole position on the ground pile pipe. When the sensor 38 detects the signal, the ground pile pipe is further rotated 180 degrees to make the detected hole at the top. At this time, the nut 6 sent by the nut positioning mechanism 23 is transferred to the positioned welding hole by the nut feeding mechanism 24. After that, the semi-automatic welding equipment will press down the nut 6, the nut feeding mechanism 24 will retreat, and the semi-automatic welding equipment will start welding the nut 6. After the welding is completed, the ground pile pipe 5 is rotated 120°, and then the nut feeding mechanism 24 continues to feed the nut 6 for welding. After the welding of the nut 6 on the ground pile pipe 5 is completed, the ground pile pipe 5 is lifted and sent away by the rolling pusher 332 in the rolling assembly.

[0050] The present invention can perform nut welding operations on photovoltaic ground pile pipes that have been drilled and formed into pointed cones, thereby ensuring the overall quality of the photovoltaic ground piles and having a high degree of automation.

[0051] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "upper", "lower", "front", "back", "left", "right", "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.

[0052] 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.

[0053] 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 ground pile nut welding device, comprising a ground pile pipe feeding unit, a nut feeding unit, a ground pile pipe positioning clamping unit and a nut welding unit, characterized in that: The ground pile pipe feeding unit and the nut feeding unit are respectively located at the front and rear sides of the ground pile pipe positioning clamping unit, and the nut welding unit is located above the ground pile pipe positioning clamping unit and corresponds to the position where the nut is to be welded; The ground pile pipe positioning and clamping unit comprises a positioning frame, a first positioning member for positioning and inserting into the ground pile pipe cavity, a second positioning member for positioning and inserting the pointed cone portion of the ground pile pipe, a first driving mechanism connected to the first positioning member for driving the first positioning member to rotate, and a second driving mechanism connected to the second positioning member for driving the second positioning member to rotate synchronously with the first positioning member; at least one of the first driving mechanism and the second driving mechanism is movably assembled on the positioning frame so that the first positioning member and the second positioning member clamp the ground pile pipe.

2. A photovoltaic ground pile nut welding device according to claim 1, characterized in that: The first driving mechanism and the second driving mechanism are both movably mounted on the positioning frame, and the ground pile pipe positioning clamping unit also includes a sensor arranged between the first driving mechanism and the second driving mechanism, and the sensor is used to detect the welding hole position for welding the nut on the ground pile pipe.

3. A photovoltaic ground pile nut welding device according to claim 2, characterized in that: The first driving mechanism and the second driving mechanism have the same structure, both of which include a servo motor, a gear transmission assembly and a transmission shaft that are transmission-connected together, and the first positioning member and the second positioning member are coaxially mounted on the corresponding transmission shaft; a motor seat that slides with the positioning frame is provided at the bottom of the servo motor, and a linear pusher connected to the motor seat is installed on the positioning frame, and the linear pusher is used to push the corresponding motor seat to move left and right.

4. A photovoltaic ground pile nut welding device according to any one of claims 1 to 3, characterized in that: A plurality of rolling assemblies arranged at intervals on the left and right are provided on the positioning frame at a position between the first positioning member and the second positioning member; the rolling assembly includes a rolling support plate and a rolling push member, the rolling support plate has a blanking support surface and a feeding rolling surface arranged in sequence in the front-to-back direction and spaced in the up-and-down direction, the rolling support plate forms a positioning stop surface for stopping the ground pile pipe at a position between the blanking support surface and the feeding rolling surface; the blanking support surface is used to support the ground pile pipe dropped from the ground pile pipe loading unit, and the feeding rolling surface is arranged to be inclined downward from front to back; the rolling push member is installed on the side of the blanking support surface, and is used to push the ground pile pipe on the blanking support surface upward to make it fall onto the feeding rolling surface.

5. A photovoltaic ground pile nut welding device according to claim 4, characterized in that: The installation position of the rolling support plate on the positioning frame is adjustable.

6. A photovoltaic ground pile nut welding device according to claim 4, characterized in that: The ground pile pipe feeding unit includes a feeding rack, a feeding jacking mechanism, a feeding alignment mechanism and a feeding jacking mechanism. The feeding rack is provided with a baffle that cooperates with the nut end of the ground pile pipe to stop. The feeding rack is provided with a cache station and an alignment station that are arranged in a front-to-back sequence and spaced up and down. The feeding jacking mechanism is arranged below the cache station and is used to push the ground pile pipe at the cache station upward to make it fall at the alignment station; the feeding alignment mechanism is arranged between the feeding jacking mechanism and the feeding jacking mechanism and is used to align the nut ends of the ground pile pipe at the alignment station to the baffle; the feeding jacking mechanism is arranged at the alignment station and is used to lift the ground pile pipe onto the drop support surface.

7. A photovoltaic ground pile nut welding device according to claim 6, characterized in that: The loading rack comprises a base frame, two brackets vertically connected to the base frame and arranged at intervals on the left and right, and a loading plate respectively connected to the two brackets, and each loading plate is equipped with the feeding lifting mechanism, the loading alignment mechanism and the loading lifting mechanism; The loading plate is provided with a first material stop surface, a second material stop surface and a loading inclined surface, the loading inclined surface is located above the bracket and connects the first material stop surface and the second material stop surface; the loading rack forms the buffer station at the position of the first material stop surface, and forms the alignment station at the intersection of the second material stop surface and the loading inclined surface.

8. The photovoltaic ground pile nut welding equipment according to claim 7, characterized in that: The distance between the two brackets is adjustable.

9. A photovoltaic ground pile nut welding device according to any one of claims 1 to 3, characterized in that: The nut feeding unit includes a vibrating plate base, a vibrating plate, a nut feeding mechanism and a nut positioning mechanism; the nut positioning mechanism is installed on the vibrating plate base and arranged at the outlet of the vibrating plate, and is used to position the nuts sent out from the outlet of the vibrating plate; the nut feeding mechanism is located above the nut positioning mechanism, and is used to transfer the nuts positioned by the nut positioning mechanism to the welding holes on the ground pile pipe.

10. The photovoltaic ground pile nut welding equipment according to claim 9, characterized in that: The nut positioning mechanism includes a positioning seat that can move in the front-to-back direction, the positioning seat is provided with a positioning opening groove that matches the shape of the nut, and a ejector is movably installed on the positioning seat at a position corresponding to the positioning opening groove along the up-down direction, and the ejector is used to be inserted into the nut; the nut feeding mechanism includes a clamping jaw that can move in the front-to-back direction and the up-and-down direction, and the clamping jaw is used to clamp the nut into which the ejector is inserted.

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