Glass fiber reinforced plastic cooling tower air deflector production welding equipment

Abstract

The invention relates to the technical field of air deflector welding equipment, and discloses glass fiber reinforced plastic cooling tower air deflector production welding equipment which comprises a welding platform and a supporting platform, a three-axis moving platform is arranged at the top of the welding platform, the welding equipment is fixedly installed on the three-axis moving platform, moving plates are arranged on the two sides of the supporting platform correspondingly, and the moving plates are fixedly installed on the supporting platform. A plurality of sliding positioning devices are arranged on the movable plate, positioning shafts are installed on the sliding positioning devices, and rotary clamping devices are installed on the positioning shafts. Through the structural design of rotary clamping devices on the two sides of a supporting platform and the design of arc-shaped shafts at the ends, facing the supporting platform, of first clamping shafts and second clamping shafts in the rotary clamping devices, the rotary clamping devices are controlled to face the end, to be welded, of the air deflector placed on the supporting platform; and one end of the air deflector passes through the space between the first clamping shaft and the second clamping shaft, the end of the air deflector is clamped through the elastic force effect of the torsional spring, clamping and fixing can be effectively achieved, and the welding effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of air guide plate welding equipment, and in particular to a welding equipment for producing air guide plates for fiberglass cooling towers. Background Technology

[0002] Fiberglass cooling towers are a common type of circulating water cooling equipment in industrial production and refrigeration systems. They use a composite material of glass fiber and unsaturated polyester resin as the outer shell and structural components of the cooling tower. They utilize the contact between water and air to reduce water temperature through evaporative heat dissipation and sensible heat exchange. Existing fiberglass cooling towers mainly consist of a tower body, packing, fan system, air inlet system, and water distribution system. Among these, the air guide plate is a commonly used component in the fan system and air inlet system.

[0003] Since most cooling towers are designed to be circular, the guide plates of existing FRP cooling towers are usually designed as a wave-like shape made up of multiple arc-shaped plates. The main purpose is to optimize airflow, reduce energy consumption, improve cooling efficiency, and reduce noise. This makes it necessary to ensure the clamping and fixing of the guide plates when welding multiple guide plates. For example, Chinese invention patent CN120480463A discloses a guide plate welding mechanism based on stainless steel cooling tower production. However, the location of the guide plates in FRP cooling towers is not limited to the fan outlet. The air ducts and air inlets inside the tower body will also have guide plates set according to specific circumstances. Therefore, when multiple guide plates need to be welded on both sides individually, due to the arc structure of the guide plates and the wave-like shape after splicing, it is difficult to ensure that both ends of the guide plates are fixed when welding both sides of the guide plates. Moreover, if the existing double-sided clamping device is added to clamp and fix the guide plates at one end, it will lead to the situation where the clamping part of the guide plates cannot be welded. Summary of the Invention

[0004] This application proposes a welding equipment for producing air guide plates for FRP cooling towers. It has the advantages of being able to clamp multiple arc-shaped air guide plates for stable welding and also enabling welding at the clamping parts of the air guide plates. This solves the problems of existing equipment for producing air guide plates for FRP cooling towers, such as difficulty in clamping both ends of the air guide plate for welding on both sides and the inability to weld at the clamping parts.

[0005] To achieve the above objectives, this application adopts the following technical solution: a welding equipment for producing air guide plates for fiberglass cooling towers, including a welding platform, a three-axis moving platform on the top of the welding platform, and welding equipment fixedly installed on the three-axis moving platform, i.e., existing welding equipment for welding air guide plates is sufficient, or it can be replaced by a welding robot, and also includes a support platform set inside the welding platform, the support platform being driven to move longitudinally by a lifting hydraulic cylinder.

[0006] The support platform has movable plates on both sides. The movable plates are driven by cylinders to move horizontally. Several sliding positioning devices are provided on the movable plates. A positioning shaft is installed on the sliding positioning device. A rotating clamping device is installed on the positioning shaft.

[0007] The rotary clamping device includes a first clamping shaft and a second clamping shaft that can rotate coaxially. The first clamping shaft and the second clamping shaft tend to rotate in opposite directions due to the elastic force of the torsion spring set on the positioning shaft. The first clamping shaft is divided into a straight shaft and an arc-shaped shaft. The two ends of the second clamping shaft near the curved part are both arc-shaped shafts designed to be adapted to the rotating shaft sleeve. The arc ends of the second clamping shaft and the first clamping shaft face opposite directions.

[0008] Furthermore, the welding equipment is fixedly installed with baffles on both sides of the welding head. With the baffles, when the welding equipment moves to the rotary clamping device, the sliding positioning device first contacts the first or second clamping shaft in the rotary clamping device, pushing the first or second clamping shaft to rotate, thus avoiding the welding problem of the connection part of the air guide plate being affected by the obstruction of the welding equipment by the rotary clamping device.

[0009] Furthermore, support blocks are fixedly installed on both sides of the top of the support platform. The top of the support block is designed with a slope, and both sides of the top of the support block are provided with smooth rounded corners. Through the structural arrangement of the two support blocks, the arc-shaped air guide plate of the FRP cooling tower can be placed on the two support blocks with the arc surface facing upward or downward, so that the upper and lower surfaces of the two support blocks can be welded by the welding head on the welding equipment.

[0010] Furthermore, two positioning plates are fixedly installed on the top of the welding platform. Each positioning plate has a sliding groove. The two ends of the moving plate are movably connected to the sliding grooves on the two positioning plates. A cylinder is fixedly installed on the positioning plate. Both ends of the moving plate are fixedly connected to a moving shaft. A positioning shaft sleeve is movably fitted onto one end of the moving shaft. The piston shaft of the cylinder is fixedly connected to the positioning shaft sleeve. The cylinder drives the piston shaft to move, thereby driving the positioning shaft sleeve, the moving shaft, and the moving plate to move together. This, in turn, drives the sliding positioning device and the rotating clamping device installed on the moving plate to move toward or away from the air guide plate, so that the rotating clamping device can clamp the two ends of the air guide plate.

[0011] Furthermore, a passive plate is movably mounted on the moving shaft. The two sides of the passive plate are movably connected to the side of the positioning sleeve and the side of the positioning plate, respectively. The outer diameter of the passive plate is greater than the width of the slide groove. The limiting effect of the passive plate allows the moving plate to move stably along the slide groove. At the same time, the thickening effect of the passive plate allows the cylinder body of the cylinder to be installed on one side of the positioning plate. The piston shaft of the cylinder can be fixedly connected to the positioning sleeve. Meanwhile, the moving shaft is fixed to the end of the positioning sleeve away from the passive plate by a nut, so that the moving shaft, positioning sleeve, and passive plate remain stable as a whole.

[0012] Furthermore, the sliding positioning device includes a sliding block movably mounted on a movable plate. A threaded sleeve is fixedly installed on one side of the sliding block, and a threaded shaft is threadedly connected to the middle of the threaded sleeve. One end of the threaded shaft extends into the interior of the sliding block and is movably connected to the movable plate. An adjusting wheel is fixedly installed on one end of the threaded shaft. By rotating the adjusting wheel, the threaded shaft is rotated, causing one end of the threaded shaft to press against the movable plate against the inner wall of the sliding block. This allows the sliding positioning device to be fixed on the movable plate. Then, according to the width of the air guide plate, the distance between two adjacent rotating clamping devices can be adjusted so that the rotating clamping devices can clamp the corresponding air guide plate.

[0013] Furthermore, linkage plates are fixedly installed at both ends of the sliding block, and the positioning shaft is fixedly installed between the two linkage plates, with the positioning shaft located at the end of the linkage plate away from the sliding block, so that the rotation of the rotating clamping device and the movement of the sliding block on the moving plate do not affect each other.

[0014] Furthermore, the rotary clamping device also includes two rotating bushings movably mounted on the positioning shaft. One end of the first clamping shaft and the second clamping shaft are respectively fixedly connected to the side of the two rotating bushings. A torsion spring is disposed between the rotating bushing and a linkage plate near one side of it. Through the elastic force of the torsion spring, the two rotating bushings drive the first clamping shaft and the second clamping shaft to rotate in opposite directions, thereby enabling the first clamping shaft and the second clamping shaft to cooperate in clamping the air guide plate.

[0015] Furthermore, the first clamping shaft is located in the middle of the second clamping shaft. In conjunction with the corrugated characteristics of the air guide plate to be welded, the first clamping shaft can move to the middle of the concave side of the air guide plate, and the second clamping shaft is located on the convex side of the air guide plate, so that the welding parts of the air guide plates clamped by the two adjacent rotating clamping devices can contact each other. The positioning shaft is movably fitted with a spacer sleeve located between the two rotating shaft sleeves and between the rotating shaft sleeves and the linkage plate, so that a certain distance is maintained between the two rotating shaft sleeves and the two linkage plates, so that the rotation of the first clamping shaft and the second clamping shaft do not affect each other.

[0016] Furthermore, rubber bushings covering the arc-shaped shaft are fixedly installed on both the first and second clamping shafts. The rubber bushings prevent the first and second clamping shafts from being rigidly connected to the air guide plate, which could damage the surface of the air guide plate. Stop bushings located at one end of the rubber bushings are also fixedly installed on the first and second clamping shafts. Two locking shafts are fixedly installed on the outer side of the stop bushings on the first clamping shaft. The two locking shafts are movably connected to the two stop bushings on the second clamping shaft. Through the locking shafts on the first clamping shaft and the stop bushings on the second clamping shaft, and with the elastic force of the torsion spring, the included angle of the first and second clamping shafts is directed toward the air guide plate to be welded placed on the top of the support platform.

[0017] The beneficial effects of this invention are as follows: 1. The fiberglass cooling tower air guide plate production and welding equipment provided in this application, through the structural design of a liftable support platform and rotating clamping devices on both sides of the support platform, utilizes the arc-shaped design of the first and second clamping shafts of the rotating clamping device facing one end of the support platform. By controlling the rotating clamping device to face one end of the air guide plate to be welded placed on the support platform, one end of the air guide plate is clamped between the first and second clamping shafts by the elastic force of the torsion spring. Thus, when performing double-sided welding on the arc-shaped air guide plate, it can be effectively clamped and fixed, improving the welding effect.

[0018] 2. With the first and second clamping shafts being coaxial and rotatable, and the structural design of an arc-shaped shaft at one end, when the welding equipment moves to the clamping part of the air guide plate during welding, the first or second clamping shaft at the welding part can rotate without obstructing the welding equipment, so as to weld the area where the air guide plate is clamped, thereby improving the integrity of the welding of the connection parts between the air guide plates and further improving the welding effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the central support platform; Figure 3 for Figure 1 Top view; Figure 4 for Figure 2 A magnified schematic diagram of the structure at point A; Figure 5 for Figure 2 A schematic diagram of the structure of one of the sliding positioning devices; Figure 6 for Figure 5 Explosion diagram of the rotating clamping device; Figure 7 for Figure 3 A magnified schematic diagram of the structure at point B.

[0020] In the diagram: 1. Welding platform; 2. Welding equipment; 3. Baffle; 4. Support platform; 5. Lifting hydraulic cylinder; 6. Support block; 7. Positioning plate; 701. Slide groove; 8. Moving plate; 9. Moving shaft; 10. Positioning bushing; 11. Cylinder; 12. Passive plate; 13. Sliding positioning device; 131. Sliding block; 132. Threaded sleeve; 133. Threaded shaft; 134. Adjusting wheel; 135. Linkage plate; 14. Positioning shaft; 15. Rotary clamping device; 151. Rotating bushing; 152. Torsion spring; 153. First clamping shaft; 154. Second clamping shaft; 155. Rubber bushing; 156. Stop bushing; 157. Clamping shaft; 16. Spacer ring. Detailed Implementation

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Examples, such as Figure 1-Figure 2 A welding equipment for producing air guide plates for fiberglass cooling towers includes a welding platform 1. A three-axis moving platform is set on the top of the welding platform 1. A welding device 2 is fixedly installed on the three-axis moving platform. Baffles 3 located on both sides of the welding head are fixedly installed on the welding device 2. A liftable support platform 4 is provided on the inner side of the welding platform 1. The bottom of the support platform 4 is fixedly connected to the piston shaft of a lifting hydraulic cylinder 5. The number of lifting hydraulic cylinders 5 is at least four. The piston shaft is driven to move by the lifting hydraulic cylinders 5, thereby driving the support platform 4 to move up and down.

[0023] Support blocks 6 are fixedly installed on both sides of the top of the support platform 4. The top of the support block 6 is designed with a slope, and both sides of the top of the support block 6 are provided with smooth rounded corners. Through the structure of the two support blocks 6, the arc-shaped air guide plate of the FRP cooling tower can be placed on the two support blocks 6 with the arc surface facing up or with the arc surface facing down, so that the welding head on the welding equipment 2 can weld the upper and lower surfaces of the two support blocks 6.

[0024] Please see Figures 1-4 Two positioning plates 7 are fixedly installed on the top of the welding platform 1. Each positioning plate 7 has a sliding groove 701. Movable plates 8 located on both sides of the support platform 4 are movably installed between the two positioning plates 7, and are movably sleeved with the sliding grooves 701. Movable shafts 9 are fixedly connected to both ends of each movable plate 8. A positioning shaft sleeve 10 is movably fitted onto one end of each movable shaft 9. Two cylinders 11 are fixedly installed on each positioning plate 7, and the piston shafts of the two cylinders 11 are fixedly connected to the positioning shaft sleeves 10 at both ends. The cylinders 11 drive the piston shafts to move, thereby moving the positioning shaft sleeve 10, the movable shaft 9, and the movable plate 8 together. The upper part is also equipped with a passive plate 12. The two sides of the passive plate 12 are movably connected to the sides of the positioning bushing 10 and the positioning plate 7, respectively. The outer diameter of the passive plate 12 is larger than the groove width of the slide 701. The moving plate 8 can move stably along the slide 701 by the limiting effect of the passive plate 12. At the same time, the thickening effect of the passive plate 12 allows the cylinder body of the cylinder 11 to be installed on one side of the positioning plate 7. The piston shaft of the cylinder 11 can be fixedly connected to the positioning bushing 10. Meanwhile, the moving shaft 9 is fixed to the end of the positioning bushing 10 away from the passive plate 12 by a nut, so that the moving shaft 9, the positioning bushing 10, and the passive plate 12 remain stable as a whole.

[0025] Please see Figures 2-6 A number of sliding positioning devices 13 are movably installed on the movable plate 8. The number of sliding positioning devices 13 is not less than two. Each sliding positioning device 13 includes a sliding block 131 movably fitted on the movable plate 8. A threaded sleeve 132 is fixedly installed on one side of the sliding block 131. A threaded shaft 133 is threadedly connected to the middle of the threaded sleeve 132. One end of the threaded shaft 133 extends into the interior of the sliding block 131 and is movably connected to the movable plate 8. An adjusting wheel 134 is fixedly installed on one end of the threaded shaft 133. By rotating the adjusting wheel 134, the threaded shaft 133 is driven to rotate, so that one end of the threaded shaft 133 cooperates with the inner wall of the sliding block 131 to press the movable plate 8, thereby fixing the sliding positioning device 13 on the movable plate 8.

[0026] A linkage plate 135 is fixedly installed at both ends of the sliding block 131. A positioning shaft 14, located away from the end of the sliding block 131, is fixedly installed between the two linkage plates 135. A rotary clamping device 15 is installed on the positioning shaft 14. The rotary clamping device 15 includes two rotating bushings 151 movably fitted on the positioning shaft 14. A spacer ring 16 is movably fitted on the positioning shaft 14 between the two rotating bushings 151 and between the rotating bushings 151 and the linkage plate 135. A torsion spring 152 is provided between the rotating bushing 151 and the linkage plate 135 near it. The torsion spring 152 is movably located outside the spacer ring 16, and the torsional force of the two torsion springs 152 causes the two rotating bushings 151 to rotate in opposite directions. A first clamping shaft 153 is fixedly connected to the outside of one of the rotating bushings 151. The first clamping shaft 153 consists of a straight shaft and an arc-shaped shaft, and the straight shaft is fixedly connected to the outside of the rotating bushing 151. A second clamping shaft is fixedly connected to the outside of the other rotating bushing 151. Shaft 154 and the second clamping shaft 154 are both arc-shaped shafts near the curved portion, designed to fit the rotating bushing 151. The arc ends of the second clamping shaft 154 and the first clamping shaft 153 face opposite directions. The first clamping shaft 153 is located in the middle of the second clamping shaft 154. Rubber bushings 155 covering the arc-shaped shafts are fixedly installed on both the first clamping shaft 153 and the second clamping shaft 154. A stop bushing 1 located at one end of the rubber bushing 155 is also fixedly installed on the first clamping shaft 153 and the second clamping shaft 154. 56. Two locking shafts 157 are fixedly installed on the outer side of the stop sleeve 156 on the first clamping shaft 153. The two locking shafts 157 are movably connected to the two stop sleeves 156 on the second clamping shaft 154. Through the locking shaft 157 on the first clamping shaft 153 and the stop sleeve 156 on the second clamping shaft 154, and with the elastic force of the torsion spring 152, the included angle of the first clamping shaft 153 and the second clamping shaft 154 is directed toward the air guide plate to be welded placed on the top of the support platform 4.

[0027] In use, first, adjust the spacing between any two adjacent sliding positioning devices 13 on the moving plate 8 according to the width of a single air guide plate. Then, rotate the adjusting wheel 134 to drive the threaded shaft 133 to rotate, so that the threaded shaft 133, in conjunction with the inner wall of the sliding block 131, clamps the moving plate 8, thus fixing the sliding positioning device 13. Next, place the air guide plate to be welded on the two support blocks 6 at the top of the support platform 4, and arrange the air guide plates to be welded together in sequence, corresponding one-to-one with the rotating clamping devices 15 at both ends of the air guide plate to be welded. Then, drive the piston shaft through the lifting hydraulic cylinder 5 to move the support platform 4, support blocks 6, and air guide plates to be welded longitudinally together, so that both ends of the air guide plate to be welded are located between the arc-shaped shaft of the second clamping shaft 154 and the rubber bushing 155. Then control... The cylinder 11 drives the piston shaft, which in turn moves the positioning sleeve 10, the moving shaft 9, the moving plate 8, the sliding positioning device 13, and the rotating clamping device 15 together toward the guide plate. Through the arc-shaped design of the first clamping shaft 153, one end of the guide plate passes between the first clamping shaft 153 and pushes it open until one end of the guide plate contacts and abuts against the stop sleeve 156. At this time, the elastic force of the torsion spring 152 causes the first clamping shaft 153 and the second clamping shaft 154 to cooperate in clamping one end of the guide plate. Furthermore, utilizing the design of the first clamping shaft 153 being located in the middle of the second clamping shaft 154, and the corrugated characteristics of the guide plate to be welded, the first clamping shaft 153 can move towards the middle of the concave side of the guide plate, while the second clamping shaft 154 is located on the convex side of the guide plate. Figure 7 The state shown allows the guide plates to be welded to be spliced ​​together sequentially, and then the welding equipment 2 is used to connect the guide plates to be welded at the joints (i.e., the joints). Figure 7 Welding is performed at welding area S in the middle. When the welding head of the welding equipment 2 moves to one end of the air guide plate, the baffle 3 set on the welding equipment 2 will push the second clamping shaft 154 above the air guide plate to rotate, so as to prevent the rotating clamping device 15 from blocking the welding equipment 2, so as to solve the problem of welding the area near the air guide plate being clamped.

[0028] After one side of the air guide plate is welded, the control cylinder 11 drives the piston shaft to push the positioning sleeve 10, the moving shaft 9, the moving plate 8, the sliding positioning device 13, and the rotating clamping device 15 to move together, so that the rotating clamping device 15 separates from the welding plate. Then, the welding plate is flipped over and placed between the two support blocks 6 on the top of the support platform 4. Next, the lifting hydraulic cylinder 5 is started to drive the support platform 4, the support blocks 6, and the air guide plate to move down together until both ends of the air guide plate are again located between the arc-shaped shafts of the first clamping shaft 153 and the second clamping shaft 154. Then, the control cylinder 11 drives the piston shaft to move the positioning sleeve 10, the moving shaft 9, the moving plate 8, the sliding positioning device 13, and the rotating clamping device 15 toward the air guide plate, so that the first clamping shaft 153 and the second clamping shaft 154 clamp one end of the air guide plate. Finally, the welding equipment 2 is controlled to weld the connecting part of the air guide plate.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding equipment for producing air guide plates for fiberglass cooling towers, comprising a welding platform, a three-axis moving platform mounted on top of the welding platform, and welding equipment fixedly installed on the three-axis moving platform, characterized in that... It also includes a support platform located inside the welding platform, the support platform being driven to move longitudinally by a lifting hydraulic cylinder; The support platform is provided with movable plates on both sides. The movable plates are driven by cylinders to move horizontally. The movable plates are provided with a number of sliding positioning devices. The sliding positioning devices are equipped with positioning shafts. The positioning shafts are equipped with rotating clamping devices. The rotary clamping device includes a first clamping shaft and a second clamping shaft that can rotate coaxially. The first clamping shaft and the second clamping shaft tend to rotate in opposite directions due to the elastic force of the torsion spring set on the positioning shaft. The first clamping shaft is divided into a straight shaft and an arc-shaped shaft. The two ends of the second clamping shaft near the curved part are both arc-shaped shafts designed to be adapted to the rotating shaft sleeve. The arc ends of the second clamping shaft and the first clamping shaft face opposite directions.

2. The welding equipment for producing FRP cooling tower air guide plates according to claim 1, characterized in that, The welding equipment is fixedly equipped with baffles located on both sides of the welding head.

3. The welding equipment for producing FRP cooling tower air guide plates according to claim 1, characterized in that, Support blocks are fixedly installed on both sides of the top of the support platform. The top of the support block is designed with a slope, and both sides of the top of the support block are provided with smooth rounded corners.

4. The welding equipment for producing FRP cooling tower air guide plates according to claim 1, characterized in that, Two positioning plates are fixedly installed on the top of the welding platform. Each positioning plate has a sliding groove. The two ends of the moving plate are movably connected to the sliding grooves on the two positioning plates. A cylinder is fixedly installed on the positioning plate. Both ends of the moving plate are fixedly connected to a moving shaft. One end of the moving shaft is movably fitted with a positioning shaft sleeve. The piston shaft of the cylinder is fixedly connected to the positioning shaft sleeve.

5. The welding equipment for producing FRP cooling tower air guide plates according to claim 4, characterized in that, A passive plate is also movably mounted on the movable shaft. The two sides of the passive plate are movably connected to the side of the positioning shaft sleeve and the side of the positioning plate, respectively, and the outer diameter of the passive plate is greater than the groove width of the slide.

6. The welding equipment for producing FRP cooling tower air guide plates according to claim 1, characterized in that, The sliding positioning device includes a sliding block movably mounted on a movable plate. A threaded sleeve is fixedly installed on one side of the sliding block. A threaded shaft is threadedly connected to the middle of the threaded sleeve. One end of the threaded shaft extends into the interior of the sliding block and is movably connected to the movable plate. An adjusting wheel is fixedly installed on one end of the threaded shaft.

7. The welding equipment for producing FRP cooling tower air guide plates according to claim 6, characterized in that, The sliding block has linkage plates fixedly installed at both ends, and the positioning shaft is fixedly installed between the two linkage plates, with the positioning shaft located at the end of the linkage plate away from the sliding block.

8. The welding equipment for producing FRP cooling tower air guide plates according to claim 7, characterized in that, The rotary clamping device also includes two rotating bushings movably mounted on the positioning shaft. One end of the first clamping shaft and the second clamping shaft are fixedly connected to the side of the two rotating bushings, respectively. A torsion spring is disposed between the rotating bushing and a linkage plate near one side of it.

9. The welding equipment for producing FRP cooling tower air guide plates according to claim 8, characterized in that, The first clamping shaft is located in the middle of the second clamping shaft, and a spacer ring is movably fitted on the positioning shaft between the two rotating shaft sleeves and between the rotating shaft sleeve and the linkage plate.

10. The welding equipment for producing FRP cooling tower air guide plates according to claim 8, characterized in that, Both the first and second clamping shafts are fixedly installed with rubber bushings covering the arc-shaped shafts. The first and second clamping shafts are also fixedly installed with stop bushings located at one end of the rubber bushings. Two locking shafts are fixedly installed on the outer side of the stop bushings on the first clamping shaft, and the two locking shafts are movably connected to the two stop bushings on the second clamping shaft.

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