Positioning fixture for welding steel plates

Abstract

This invention discloses a positioning fixture for steel plate welding. The invention relates to the field of steel plate welding technology and includes a base plate. Two first electric telescopic rods are symmetrically fixedly connected to the top sidewall of the base plate. Each of the telescopic ends of the two first electric telescopic rods is fixedly connected to a connecting plate. The sidewalls of the two connecting plates at corresponding ends are rotatably connected to the same rotating rod. This invention allows adjustment of the angle between the first and second clamping plates according to the angle between the two sides of the wave inside the U-shaped steel corrugated plate to be welded. This facilitates fixing U-shaped steel corrugated plates with different inclination angles on both sides and different inclination angles inside the wave. Furthermore, when welding is required at other locations on the U-shaped steel corrugated plate, the welding position can be rotated to the worker's side, facilitating continued welding and improving the efficiency and reliability of welding U-shaped steel corrugated plates.

Description

Technical Field

[0001] This invention belongs to the field of steel plate welding technology, and particularly relates to a positioning fixture for steel plate welding. Background Technology

[0002] Steel plate welding is a common and important metal joining process that is widely used in many fields such as construction, machinery manufacturing, and the automotive industry.

[0003] When welding steel corrugated sheets, existing technology involves fixing the sheets to a welding machine and then using a welding gun. However, when welding U-shaped steel corrugated sheets, due to their curvature, they cannot be directly fitted to the welding machine. Workers must apply pressure to the U-shaped sheets to hold them in place before welding. This requires constant pressure to prevent displacement, which can lead to arm and hand fatigue, affecting reaction time and concentration, and increasing safety hazards. Furthermore, welding other parts of the U-shaped sheets requires manual repositioning to allow the welding gun to reach them, significantly reducing efficiency and reliability.

[0004] To address this issue, we propose a positioning fixture for steel plate welding. Summary of the Invention

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A positioning fixture for welding steel plates includes a base plate. Two first electric telescopic rods are symmetrically fixedly connected to the top side wall of the base plate. Each telescopic end of the two first electric telescopic rods is fixedly connected to a connecting plate. A rotating rod is rotatably connected to the side wall of one of the connecting plates at their corresponding ends. A first motor is fixedly connected to one side wall of one of the connecting plates. The output end of the first motor passes through the side wall of the corresponding connecting plate and is fixedly connected to one end of the rotating rod. A first groove is formed in the rod wall of the rotating rod. An inner wall clamping assembly is fixedly connected to the inner wall of the bottom end of the first groove. Two second grooves are symmetrically formed in the rod wall of the rotating rod. An outer wall clamping assembly is fixedly connected to the inner wall of the second groove. A middle fixing assembly is fixedly connected to the inner wall of the bottom end of the first groove. A third groove is formed in the bottom side wall of the base plate. An angle adjustment assembly is slidably connected to the inner wall of the third groove.

[0007] Preferably, the inner wall clamping assembly includes two first electric slide rails fixedly connected to the inner wall of the bottom end of the first groove, a first slide plate slidably connected to the top side wall of each of the two first electric slide rails, a second electric telescopic rod fixedly connected to the top side wall of the first slide plate, a first round rod rotatably connected to the top side wall of the first slide plate, a first support plate fixedly connected to the rod wall of the first round rod, a fourth groove formed on the bottom side wall of the first support plate, a first side plate slidably connected to the inner wall of the fourth groove, and the telescopic end of the second electric telescopic rod rotatably connected to the bottom end of the first side plate.

[0008] Preferably, a second electric slide rail is fixedly connected to the top side wall of the first support plate, three second slide plates are slidably connected to the top side wall of the second electric slide rail, a third electric telescopic rod is fixedly connected to the top side wall of each of the second slide plates, a first U-shaped plate is fixedly connected to the telescopic end of each of the third electric telescopic rods, two first side rods are symmetrically rotatably connected to the inner wall of the first U-shaped plate, a fourth electric telescopic rod is fixedly connected to the wall of each of the first side rods, a first clamping plate is fixedly connected to the telescopic end of each of the fourth electric telescopic rods, and two second motors are fixedly connected to the side wall of the first U-shaped plate, with the output ends of the two second motors passing through the side wall of the first U-shaped plate and fixedly connected to one end of the corresponding first side rod.

[0009] Preferably, the outer wall clamping assembly includes a fifth electric telescopic rod fixedly connected to the inner wall of the second groove. The telescopic end of the fifth electric telescopic rod is fixedly connected to the same mounting plate. The bottom side wall of the mounting plate is fixedly connected to a third electric slide rail. The bottom side wall of the third electric slide rail is slidably connected to two third sliding plates. The bottom side wall of each of the third sliding plates is fixedly connected to a sixth electric telescopic rod. The telescopic end of each of the sixth electric telescopic rods is fixedly connected to a connecting block. The bottom side wall of the connecting block is rotatably connected to a second round rod. The rod wall of the second round rod is fixedly connected to a second support plate. The bottom side wall of the connecting block is fixedly connected to a seventh electric telescopic rod. The top side wall of the second support plate has a fifth groove. The inner wall of the fifth groove is slidably connected to a second side plate. The top side wall of the second side plate is rotatably connected to the telescopic end of the seventh electric telescopic rod.

[0010] Preferably, a fourth electric slide rail is fixedly connected to the bottom side wall of the second side plate, and three fourth slide plates are slidably connected to the bottom side wall of the fourth electric slide rail. An eighth electric telescopic rod is fixedly connected to the bottom side wall of each of the fourth slide plates. A second U-shaped plate is fixedly connected to the telescopic end of each of the eighth electric telescopic rods. Two second side rods are symmetrically rotatably connected to the inner wall of the second U-shaped plate. A ninth electric telescopic rod is fixedly connected to the wall of each of the second side rods. A second clamping plate is fixedly connected to the telescopic end of each of the ninth electric telescopic rods. Two third motors are fixedly connected to the side wall of the second U-shaped plate. The output ends of the two third motors pass through the side wall of the second U-shaped plate and are fixedly connected to one end of the corresponding second side rod.

[0011] Preferably, the central fixing assembly includes a tenth electric telescopic rod fixedly connected to the inner wall of the bottom end of the first groove, an eleventh electric telescopic rod fixedly connected to the bottom side wall of the mounting plate, and a third U-shaped plate fixedly connected to the telescopic ends of both the tenth and eleventh electric telescopic rods. Two fixing rods are rotatably connected to the inner wall of each of the third U-shaped plates.

[0012] Preferably, a twelfth electric telescopic rod is fixedly connected to the wall of each of the two fixed rods, and a third clamping plate is fixedly connected to the telescopic end of each of the twelfth electric telescopic rods. A thirteenth electric telescopic rod is rotatably connected to the outer wall of one of the twelfth electric telescopic rods, and the telescopic end of the thirteenth electric telescopic rod is rotatably connected to the outer wall of the other twelfth electric telescopic rod.

[0013] Preferably, the angle adjustment assembly includes two adjustment plates slidably connected to the inner wall of the third groove, and the bottom ends of the two adjustment plates are rotatably connected to a fourteenth electric telescopic rod, and the bottom side walls of the two fourteenth electric telescopic rods are fixedly connected to the same support base.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The inner wall clamping assembly, outer wall clamping assembly, and central fixing assembly allow for adjustment of the distance between the first and second sliding plates according to the distance between the two ends of the U-shaped steel corrugated plate to be welded, facilitating the fixing of the U-shaped steel corrugated plate. Furthermore, the angles of the first and second support plates can be adjusted according to the angles at both ends of the U-shaped steel corrugated plate, ensuring that the inclination angles of the first and second support plates match the inclination angles of both sides of the U-shaped steel corrugated plate. This facilitates the movement of the first and second clamping plates into the interior of the U-shaped steel corrugated plate's waves, fixing the U-shaped steel corrugated plate in place. Simultaneously, the distance between the first and second sliding plates can be adjusted according to the internal waves of the U-shaped steel corrugated plate to be welded. The angle adjustment between the first and second clamping plates on both sides facilitates the fixing of U-shaped steel corrugated plates with different tilt angles on both sides and different tilt angles inside the wave. This avoids workers constantly pressing down on the U-shaped steel corrugated plates during welding, which affects their reaction speed and concentration, and increases safety hazards. It also allows the U-shaped steel corrugated plates to be rotated to the worker's side when welding other parts of the U-shaped steel corrugated plates is required, making it easier to continue welding. This greatly improves the work efficiency and reliability of welding U-shaped steel corrugated plates. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention from other angles;

[0018] Figure 3 This is a partial structural diagram of the present invention. Figure 1 ;

[0019] Figure 4 For the present invention Figure 3 Enlarged view of part A;

[0020] Figure 5 This is a partial structural diagram of the present invention. Figure 2 ;

[0021] Figure 6 This is a partial structural diagram of the present invention. Figure 3 ;

[0022] Figure 7 This is a partial structural diagram of the present invention. Figure 4 ;

[0023] Figure 8 This is a partial structural diagram of the present invention. Figure 5 .

[0024] In the diagram: 1. Base plate; 2. First electric telescopic rod; 3. Connecting plate; 4. Rotating rod; 5. First motor; 6. First groove; 7. Inner wall clamping assembly; 71. First electric slide rail; 72. First sliding plate; 73. Second electric telescopic rod; 74. First round rod; 75. First support plate; 76. Fourth groove; 77. First side plate; 78. Second electric slide rail; 79. Second sliding plate; 710. Third electric telescopic rod; 711. First U-shaped plate; 712. First side rod; 713. Fourth electric telescopic rod; 714. First clamping plate; 715. Second motor; 8. Second groove; 9. Outer wall clamping assembly; 91. Fifth electric telescopic rod; 92. Mounting plate; 93. Third electric slide rail; 94. Third sliding plate; 95. Sixth electric telescopic rod; 96. Connecting block ; 97. Second round rod; 98. Second support plate; 99. Seventh electric telescopic rod; 910. Fifth groove; 911. Second side plate; 912. Fourth electric slide rail; 913. Fourth sliding plate; 914. Eighth electric telescopic rod; 915. Second U-shaped plate; 916. Second side rod; 917. Ninth electric telescopic rod; 918. Second clamping plate; 919. Third motor; 10. Central fixing assembly; 101. Tenth electric telescopic rod; 102. Eleventh electric telescopic rod; 103. Third U-shaped plate; 104. Fixing rod; 105. Twelfth electric telescopic rod; 106. Thirteenth electric telescopic rod; 107. Third clamping plate; 11. Third groove; 12. Angle adjustment assembly; 121. Adjustment plate; 122. Fourteenth electric telescopic rod; 123. Support base. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] The following electrical components are all electrically connected to the external PLC controller.

[0027] Reference Figure 1 - Figure 8A positioning fixture for welding steel plates includes a base plate 1. Two first electric telescopic rods 2 are symmetrically fixedly connected to the top side wall of the base plate 1. The telescopic ends of the two first electric telescopic rods 2 are fixedly connected to connecting plates 3. The side walls of the two connecting plates 3 at corresponding ends are rotatably connected to the same rotating rod 4. A first motor 5 is fixedly connected to one side wall of one of the connecting plates 3. The output end of the first motor 5 passes through the side wall of the corresponding connecting plate 3 and is fixedly connected to one end of the rotating rod 4. A first groove 6 is formed in the rod wall of the rotating rod 4. An inner wall clamping assembly 7 is fixedly connected to the bottom inner wall of the first groove 6. Two second grooves 8 are symmetrically formed in the rod wall of the rotating rod 4. An outer wall clamping assembly 9 is fixedly connected to the inner wall of the second groove 8. A middle fixing assembly 10 is fixedly connected to the bottom inner wall of the first groove 6. A third groove 11 is formed in the bottom side wall of the base plate 1. An angle adjustment assembly 12 is slidably connected to the inner wall of the third groove 11.

[0028] In this embodiment, the inner wall clamping assembly 7 includes two first electric slide rails 71 fixedly connected to the inner wall of the bottom end of the first groove 6. The top side walls of the two first electric slide rails 71 are slidably connected to a first slide plate 72. The top side wall of the first slide plate 72 is fixedly connected to a second electric telescopic rod 73. The top side wall of the first slide plate 72 is rotatably connected to a first round rod 74. The rod wall of the first round rod 74 is fixedly connected to a first support plate 75. The bottom side wall of the first support plate 75 is provided with a fourth groove 76. The inner wall of the fourth groove 76 is slidably connected to a first side plate 77. The telescopic end of the second electric telescopic rod 73 is rotatably connected to the bottom end of the first side plate 77.

[0029] The top side wall of the first support plate 75 is fixedly connected to a second electric slide rail 78. The top side wall of the second electric slide rail 78 is slidably connected to three second slide plates 79. The top side wall of each of the second slide plates 79 is fixedly connected to a third electric telescopic rod 710. The telescopic ends of the third electric telescopic rods 710 are fixedly connected to a first U-shaped plate 711. The inner wall of the first U-shaped plate 711 is symmetrically rotatably connected to two first side rods 712. The rod walls of the first side rods 712 are fixedly connected to a fourth electric telescopic rod 713. The telescopic ends of the fourth electric telescopic rods 713 are fixedly connected to a first clamping plate 714. The side wall of the first U-shaped plate 711 is fixedly connected to two second motors 715. The output ends of the two second motors 715 pass through the side wall of the first U-shaped plate 711 and are fixedly connected to one end of the corresponding first side rod 712.

[0030] The outer wall clamping assembly 9 includes a fifth electric telescopic rod 91 fixedly connected to the inner wall of the second groove 8. The telescopic end of the fifth electric telescopic rod 91 is fixedly connected to the same mounting plate 92. The bottom side wall of the mounting plate 92 is fixedly connected to a third electric slide rail 93. The bottom side wall of the third electric slide rail 93 is slidably connected to two third slide plates 94. The bottom side wall of each of the third slide plates 94 is fixedly connected to a sixth electric telescopic rod 95. The telescopic ends of each of the sixth electric telescopic rods 95 are fixedly connected to a connecting block 96. The bottom side wall of the connecting block 96 is rotatably connected to a second round rod 97. The rod wall of the second round rod 97 is fixedly connected to a second support plate 98. The bottom side wall of the connecting block 96 is fixedly connected to a seventh electric telescopic rod 99. The top side wall of the second support plate 98 has a fifth groove 910. The inner wall of the fifth groove 910 is slidably connected to a second side plate 911. The top side wall of the second side plate 911 is rotatably connected to the telescopic end of the seventh electric telescopic rod 99.

[0031] The bottom side wall of the second side plate 911 is fixedly connected to the fourth electric slide rail 912. The bottom side wall of the fourth electric slide rail 912 is slidably connected to three fourth slide plates 913. The bottom side wall of each of the fourth slide plates 913 is fixedly connected to an eighth electric telescopic rod 914. The telescopic ends of each of the eighth electric telescopic rods 914 are fixedly connected to a second U-shaped plate 915. The inner wall of the second U-shaped plate 915 is symmetrically rotatably connected to two second side rods 916. The walls of each of the second side rods 916 are fixedly connected to a ninth electric telescopic rod 917. The telescopic ends of each of the ninth electric telescopic rods 917 are fixedly connected to a second clamping plate 918. The side wall of the second U-shaped plate 915 is fixedly connected to two third motors 919. The output ends of each of the two third motors 919 pass through the side wall of the second U-shaped plate 915 and are fixedly connected to one end of the corresponding second side rod 916.

[0032] The middle fixing component 10 includes a tenth electric telescopic rod 101 fixedly connected to the inner wall of the bottom end of the first groove 6, an eleventh electric telescopic rod 102 fixedly connected to the bottom side wall of the mounting plate 92, and a third U-shaped plate 103 fixedly connected to the telescopic ends of the tenth electric telescopic rod 101 and the eleventh electric telescopic rod 102. The inner wall of the third U-shaped plate 103 is rotatably connected to two fixing rods 104.

[0033] The walls of both fixed rods 104 are fixedly connected to a twelfth electric telescopic rod 105. The telescopic ends of the twelfth electric telescopic rod 105 are fixedly connected to a third clamping plate 107. The outer wall of one of the twelfth electric telescopic rods 105 is rotatably connected to a thirteenth electric telescopic rod 106. The telescopic end of the thirteenth electric telescopic rod 106 is rotatably connected to the outer wall of the other twelfth electric telescopic rod 105.

[0034] Specifically, the distance between the first sliding plate 72 and the second sliding plate 79 can be adjusted according to the distance between the two ends of the U-shaped steel corrugated plate to be welded, so as to fix the U-shaped steel corrugated plate. The angles of the first support plate 75 and the second support plate 98 can also be adjusted according to the angles at both ends of the U-shaped steel corrugated plate, so that the tilt angles of the first support plate 75 and the second support plate 98 match the tilt angles on both sides of the U-shaped steel corrugated plate. This facilitates the movement of the first clamping plate 714 and the second clamping plate 918 into the interior of the U-shaped steel corrugated plate's waves to fix the U-shaped steel corrugated plate. Simultaneously, the distance between the two sides of the waves inside the U-shaped steel corrugated plate to be welded can be adjusted according to the angle between the two sides of the waves inside the U-shaped steel corrugated plate to be welded. The angle between the first clamping plate 714 and the second clamping plate 918 can be adjusted to fix U-shaped steel wave plates with different tilt angles on both sides and different tilt angles inside the wave. This avoids workers constantly pressing down on the U-shaped steel wave plates during the welding process, which affects their reaction speed and concentration, and increases safety hazards. It also allows the U-shaped steel wave plates to be rotated to the side of the worker when welding other parts of the U-shaped steel wave plates is required, making it easier to continue welding. This greatly improves the work efficiency and reliability of welding U-shaped steel wave plates.

[0035] In this embodiment, the angle adjustment assembly 12 includes two adjustment plates 121 slidably connected to the inner wall of the third groove 11. The bottom ends of the two adjustment plates 121 are rotatably connected to a fourteenth electric telescopic rod 122, and the bottom side walls of the two fourteenth electric telescopic rods 122 are fixedly connected to the same support base 123.

[0036] Specifically, when welding is required inside the U-shaped steel corrugated plate, the U-shaped steel corrugated plate needs to be tilted to a certain angle to allow the welding machine to operate. At this time, the fourteenth electric telescopic rod 122, which controls the tilting direction, is activated, driving the corresponding adjusting plate 121 to move upward. Since the base plate 1 is connected to another adjusting plate 121 through the third groove 11, as the adjusting plate 121 moves upward, it will move inside the third groove 11. Similarly, the other adjusting plate 121 will move inside the third groove 11, but the other fourteenth electric telescopic rod 122 does not extend. At this time, the base plate 1 will tilt as a whole, causing the U-shaped steel corrugated plate to tilt. After the U-shaped steel corrugated plate tilts to a certain angle, the fourteenth electric telescopic rod 122 stops extending, thus tilting the U-shaped steel corrugated plate and facilitating the continued welding of the U-shaped steel corrugated plate.

[0037] The operating principle of the present invention is described as follows:

[0038] In this invention, when welding a U-shaped steel corrugated plate is required, the operator first controls the first electric slide rail 71 to start, driving the two first slide plates 72 to move, making the distance between the two first slide plates 72 smaller than the distance between the two ends of the U-shaped steel corrugated plate to be welded. Then, the operator controls the second electric telescopic rod 73 to start, driving the first side plate 77 to move upward. At this time, since one end of the first support plate 75 is fixedly connected to the first round rod 74, the first support plate 75 will rotate around the first round rod 74 as the first side plate 77 moves upward, and the first side plate 77 will move within the fourth groove 76. The tilt angle of the first support plate 75 is adjusted by controlling the extension and retraction of the second electric telescopic rod 73, so that the two first support plates 75 move upward. The angle of plate 75 matches the inclination angle of the side walls at both ends of the U-shaped steel corrugated plate to be welded. Then, the second electric slide rail 78 is activated, driving the second slide plate 79 to move, so that the distance between the three second slide plates 79 matches the distance between the corrugated recesses on the inner wall of the U-shaped steel corrugated plate. Then, the second motor 715 is activated, driving the first side rod 712 to rotate, so that the angle between the two fourth electric telescopic rods 713 inside the first U-shaped plate 711 matches the angle between the two sides of the corrugated inner wall of the U-shaped steel corrugated plate. Then, the worker places the U-shaped steel corrugated plate on the outer wall of the rotating rod 4, so that the inner wall of the U-shaped steel corrugated plate covers the first slide plate 72. Then, the third electric telescopic rod 710, whose angle adjustment is completed, is activated, so that the first U-shaped plate 71... 1. Entering the inner wall of the U-shaped steel corrugated plate, the fourth electric telescopic rod 713, after angle adjustment, is activated, driving the first clamping plate 714 to move. The first clamping plate 714 is used to fix the inner wall of the U-shaped steel corrugated plate. When the worker places the U-shaped steel corrugated plate on the rotating rod 4, the fifth electric telescopic rod 91 is activated, driving the mounting plate 92 upward, so that the outer wall clamping assembly 9 does not obstruct the placement of the U-shaped steel corrugated plate. Then, the third electric slide rail 93 is activated, driving the two third sliding plates 94 to move, so that the connecting block 96 is close to the outer wall of the U-shaped steel corrugated plate. Then, the seventh electric telescopic rod 99 is activated, driving the second side plate 911 downward. Since one end of the second support plate 98 is connected to the first... One end of the two round rods 97 is fixedly connected. As the second side plate 911 drives the second support plate 98 to move downward, the second side plate 911 gradually moves inside the fifth groove 910. At this time, the second support plate 98 rotates around the second round rod 97, thereby adjusting the angle between the second support plate 98 and the eighth electric telescopic rod 914, so that the tilt angle of the eighth electric telescopic rod 914 matches the tilt angle of the outer wall of the U-shaped steel corrugated plate. Then, the third motor 919 is started, driving the corresponding second side rod 916 to rotate, so that the angle between the two ninth electric telescopic rods 917 matches the angle between the inner walls of the two ends of the U-shaped steel corrugated plate. Then, the sixth electric telescopic rod 95 is started, driving the ninth electric telescopic rod 917 to move downward.The ninth electric telescopic rod 917 is aligned with the outer wall of the U-shaped steel corrugated plate. Then, the eighth electric telescopic rod 914 is activated, causing the second clamping plate 918 to enter the corrugated outer wall of the U-shaped steel corrugated plate. Next, the ninth electric telescopic rod 917 is activated, moving the second clamping plate 918 to fix the corrugated outer wall of the U-shaped steel corrugated plate. Then, the thirteenth electric telescopic rod 106 is extended. Since one end and the telescopic end of the thirteenth electric telescopic rod 106 are rotatably connected to the outer walls of the two twelfth electric telescopic rods 105, as the thirteenth electric telescopic rod 106 extends, the two twelfth electric telescopic rods 105 will be positioned relative to the corresponding fixing rods 104. Rotating around the center, the angle between the two twelfth electric telescopic rods 105 is matched with the angle between the inner walls of the two ends of the U-shaped steel corrugated plate. Then, the tenth electric telescopic rod 101 and the eleventh electric telescopic rod 102 are activated, moving the corresponding third U-shaped plate 103 so that the twelfth electric telescopic rod 105 is positioned within the wave of the U-shaped steel corrugated plate. Next, the twelfth electric telescopic rod 105 is activated, moving the third clamping plate 107. The third clamping plate 107 is used to fix the middle wave of the U-shaped steel corrugated plate, thus fixing the inner wall, outer wall, and middle wave of the U-shaped steel corrugated plate. This facilitates subsequent welding of the U-shaped steel corrugated plate by welding personnel. When welding at other locations, the first electric telescopic rod 2 is activated, causing the connecting plate 3 to move upwards, thus moving the U-shaped steel corrugated plate upwards. Then, the first motor 5 is activated, causing the rotating rod 4 to rotate, thus rotating the U-shaped steel corrugated plate until the welding position is positioned to the worker's side, facilitating further welding. The distance between the first sliding plate 72 and the second sliding plate 79 can be adjusted according to the distance between the two ends of the U-shaped steel corrugated plate to be welded, facilitating the fixation of the U-shaped steel corrugated plate. The angles of the first support plate 75 and the second support plate 98 can also be adjusted according to the angles at both ends of the U-shaped steel corrugated plate, ensuring that the tilt angles of the first support plate 75 and the second support plate 98 are aligned with the U-shaped steel corrugated plate. The matching tilt angles on both sides of the plate facilitate the movement of the first clamping plate 714 and the second clamping plate 918 into the interior of the U-shaped steel corrugated plate to fix it in place. Simultaneously, the angles of the first clamping plate 714 and the second clamping plate 918 can be adjusted according to the angle between the two sides of the wave inside the U-shaped steel corrugated plate to be welded. This facilitates the fixing of U-shaped steel corrugated plates with different tilt angles on both sides and different tilt angles inside the wave, avoiding the need for workers to constantly press on the U-shaped steel corrugated plate during welding, which affects their reaction speed and concentration, increasing safety hazards. Furthermore, when welding needs to be performed on other parts of the U-shaped steel corrugated plate, the area to be welded can be rotated to the worker's side.This facilitates further welding of U-shaped steel corrugated sheets, greatly improving the efficiency and reliability of the welding process.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A positioning fixture for welding steel plates, comprising a base plate (1), characterized in that, Two first electric telescopic rods (2) are symmetrically fixedly connected to the top side wall of the base plate (1). The telescopic ends of the two first electric telescopic rods (2) are fixedly connected to a connecting plate (3). The side walls of the two connecting plates (3) are rotatably connected to the same rotating rod (4). One side wall of one of the connecting plates (3) is fixedly connected to a first motor (5). The output end of the first motor (5) passes through the side wall of the corresponding connecting plate (3) and is fixedly connected to one end of the rotating rod (4). The rod wall of the rotating rod (4) is provided with a first groove (6). The inner wall of the bottom end of the first groove (6) is fixedly connected to an inner wall clamping assembly (7). The rod wall of the rotating rod (4) is symmetrically provided with two second grooves (8). The inner wall of the second groove (8) is fixedly connected to an outer wall clamping assembly (9). The inner wall of the bottom end of the first groove (6) is fixedly connected to a middle fixing assembly (10). The bottom side wall of the base plate (1) is provided with a third groove (11). The inner wall of the third groove (11) is slidably connected to an angle adjustment assembly (12). The inner wall clamping assembly (7) includes two first electric slide rails (71) fixedly connected to the inner wall of the bottom end of the first groove (6). The top side walls of the two first electric slide rails (71) are slidably connected to a first slide plate (72). The top side wall of the first slide plate (72) is fixedly connected to a second electric telescopic rod (73). The top side wall of the first slide plate (72) is rotatably connected to a first round rod (74). The rod wall of the first round rod (74) is fixedly connected to a first support plate (75). The bottom side wall of the first support plate (75) is provided with a fourth groove (76). The inner wall of the fourth groove (76) is slidably connected to a first side plate (77). The telescopic end of the second electric telescopic rod (73) is rotatably connected to the bottom end of the first side plate (77). The top side wall of the first support plate (75) is fixedly connected to a second electric slide rail (78), the top side wall of the second electric slide rail (78) is slidably connected to three second slide plates (79), the top side wall of each of the second slide plates (79) is fixedly connected to a third electric telescopic rod (710), the telescopic end of each of the third electric telescopic rods (710) is fixedly connected to a first U-shaped plate (711), the inner wall of the first U-shaped plate (711) is symmetrically rotatably connected to two first side rods (712), the rod wall of each of the first side rods (712) is fixedly connected to a fourth electric telescopic rod (713), the telescopic end of each of the fourth electric telescopic rods (713) is fixedly connected to a first clamping plate (714), the side wall of the first U-shaped plate (711) is fixedly connected to two second motors (715), the output ends of each of the two second motors (715) pass through the side wall of the first U-shaped plate (711) and are fixedly connected to one end of the corresponding first side rod (712); The outer wall clamping assembly (9) includes a fifth electric telescopic rod (91) fixedly connected to the inner wall of the second groove (8). The telescopic end of the fifth electric telescopic rod (91) is fixedly connected to the same mounting plate (92). The bottom side wall of the mounting plate (92) is fixedly connected to a third electric slide rail (93). The bottom side wall of the third electric slide rail (93) is slidably connected to two third sliding plates (94). The bottom side wall of each of the third sliding plates (94) is fixedly connected to a sixth electric telescopic rod (95). The telescopic ends of the sixth electric telescopic rod (95) are all fixedly connected to... A connecting block (96) is connected to the bottom side wall of the connecting block (96), a second round rod (97) is rotatably connected to the bottom side wall of the connecting block (96), a second support plate (98) is fixedly connected to the rod wall of the second round rod (97), a seventh electric telescopic rod (99) is fixedly connected to the bottom side wall of the connecting block (96), a fifth groove (910) is provided on the top side wall of the second support plate (98), a second side plate (911) is slidably connected to the inner wall of the fifth groove (910), and the top side wall of the second side plate (911) is rotatably connected to the telescopic end of the seventh electric telescopic rod (99).

2. The positioning fixture for welding steel plates according to claim 1, characterized in that, The bottom side wall of the second side plate (911) is fixedly connected to a fourth electric slide rail (912). The bottom side wall of the fourth electric slide rail (912) is slidably connected to three fourth slide plates (913). The bottom side wall of each of the fourth slide plates (913) is fixedly connected to an eighth electric telescopic rod (914). The telescopic ends of each of the eighth electric telescopic rods (914) are fixedly connected to a second U-shaped plate (915). The inner wall of the second U-shaped plate (915) is symmetrically rotated to connect to two second side rods (916). The walls of each of the second side rods (916) are fixedly connected to a ninth electric telescopic rod (917). The telescopic ends of each of the ninth electric telescopic rods (917) are fixedly connected to a second clamping plate (918). The side wall of the second U-shaped plate (915) is fixedly connected to two third motors (919). The output ends of the two third motors (919) pass through the side wall of the second U-shaped plate (915) and are fixedly connected to one end of the corresponding second side rod (916).

3. A positioning fixture for welding steel plates according to claim 1, characterized in that, The middle fixing component (10) includes a tenth electric telescopic rod (101) fixedly connected to the inner wall of the bottom end of the first groove (6), an eleventh electric telescopic rod (102) fixedly connected to the bottom side wall of the mounting plate (92), and a third U-shaped plate (103) fixedly connected to the telescopic ends of the tenth electric telescopic rod (101) and the eleventh electric telescopic rod (102), and two fixing rods (104) rotatably connected to the inner wall of the third U-shaped plate (103).

4. A positioning fixture for welding steel plates according to claim 3, characterized in that, The walls of both fixed rods (104) are fixedly connected to a twelfth electric telescopic rod (105), and the telescopic ends of the twelfth electric telescopic rod (105) are fixedly connected to a third clamping plate (107). The outer wall of one of the twelfth electric telescopic rods (105) is rotatably connected to a thirteenth electric telescopic rod (106), and the telescopic end of the thirteenth electric telescopic rod (106) is rotatably connected to the outer wall of the other twelfth electric telescopic rod (105).

5. A positioning fixture for welding steel plates according to claim 1, characterized in that, The angle adjustment assembly (12) includes two adjustment plates (121) slidably connected to the inner wall of the third groove (11). The bottom ends of the two adjustment plates (121) are rotatably connected to a fourteenth electric telescopic rod (122). The bottom side walls of the two fourteenth electric telescopic rods (122) are fixedly connected to the same support base (123).

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