Welding device for streamline rudder

Abstract

The invention relates to the field of welding clamps, in particular to a welding device for a streamline rudder. The technical problems that in the prior art, the process of adjusting the arc-shaped rudder plate is tedious, relative displacement is prone to occurring in the process of fixing the arc-shaped rudder plate, the risk of inclined clamping or inclined clamping can occur, and then the welding efficiency and quality of the arc-shaped rudder plate and a rudder frame are affected are solved. A welding device for a streamline rudder comprises a box body, a frame, a fixing plate and the like. A frame is fixedly installed at the bottom in the box body, and a fixing plate is vertically installed in the frame. The two clamping plates move in the direction close to each other, the sides, close to each other, of the two clamping plates can make contact with the upper side face and the lower side face of the rudder frame and the upper side face and the lower side face of the two arc-shaped rudder plates, in this way, the upper sides and the lower sides of the two arc-shaped rudder plates can be aligned with the upper side face and the lower side face of the rudder frame, and then the alignment accuracy and efficiency of the rudder frame and the two arc-shaped rudder plates are improved; therefore, the welding quality of the rudder frame and the two arc-shaped rudder plates is improved.

Description

Technical Field

[0001] The invention relates to the field of welding fixtures, in particular to a welding device for a streamlined rudder. Background Art

[0002] A streamlined rudder is also called a double-plate rudder. This type of rudder is made of a double-plate covering the outer periphery of the frame. It has high strength and a streamlined rudder blade cross-section. Because the interior is hollow and watertight, it generates a certain buoyancy, reducing the pressure on the rudder bearing. Moreover, it has good hydrodynamic performance, a large lift coefficient of the rudder, small resistance, and high rudder efficiency. Although the structure of this type of rudder is relatively complex, it is widely used due to its many advantages.

[0003] During the production of the streamlined rudder, the two curved rudder plates need to be closed and wrapped around the rudder frame, and then the joints between the two curved rudder plates and the rudder frame are welded. However, due to the special shapes of the curved rudder plates and the rudder frame, the position of the rudder frame is generally fixed, and then the positions of the two curved rudder plates are repeatedly adjusted so that the two curved rudder plates can fit tightly with both sides of the rudder frame, and then the two curved rudder plates are firmly fixed on the rudder frame using a special clamp, and then the joints between the curved rudder plates and the rudder frame are welded. However, the current process of adjusting the curved rudder plates is relatively cumbersome. In the process of fixing the curved rudder plates with the clamp, the two curved rudder plates and the rudder frame are prone to relative displacement, which will cause clamping or deviation, thereby affecting the efficiency and quality of the welding of the curved rudder plates and the rudder frame. Summary of the invention

[0004] In order to overcome the shortcomings that the current process of adjusting the curved rudder plate is relatively cumbersome, relative displacement is likely to occur during the process of fixing the curved rudder plate, there is a risk of being crooked or deflected, thereby affecting the efficiency and quality of welding of the curved rudder plate and the rudder frame, the purpose of the present invention is to provide a welding device for a streamlined rudder in response to the above technical problems, which can correct the rudder frame multiple times so that the rudder frame can be aligned with the two curved rudder plates, and the two curved rudder plates are fully corrected and fixed after being fitted to the rudder frame, so as to avoid relative displacement between the curved rudder plate and the rudder frame and improve the efficiency and quality of welding of the curved rudder plate and the rudder frame.

[0005] The technical implementation scheme of the present invention is: a welding device for a streamlined rudder, including a box body, a frame, a fixed plate, a fixing mechanism, a clamping mechanism and an opening and closing mechanism. A frame is fixedly installed at the bottom of the box body, a fixed plate is vertically installed in the frame, the box body and the fixed plate are provided with a fixing mechanism, the fixing mechanism is used to fix the rudder frame, the box body and the fixed plate are provided with a clamping mechanism, the clamping mechanism is used to clamp the rudder frame, and the box body is provided with an opening and closing mechanism, the opening and closing mechanism is used to drive the arc-shaped rudder plate to move.

[0006] More preferably, the fixing mechanism includes a hollow positioning frame, a limit frame, a connecting plate, an electric push rod, a connecting plate and a vertical plate. A hollow positioning frame is slidably provided in the middle of the fixing plate, a limit frame is fixedly installed on the hollow positioning frame, the limit frame is located on one side of the fixing plate, a connecting plate is installed on one side of the hollow positioning frame, the connecting plate is slidably connected to the frame, an electric push rod is fixedly installed on the top and bottom of the box body respectively, a connecting plate is fixedly installed on the telescopic rods of the two electric push rods, a vertical plate is connected between the two connecting plates, the vertical plate is located between the hollow positioning frame and the connecting plate, and the vertical plate is in contact with one side of the connecting plate.

[0007] More preferably, the clamping mechanism includes a vertical slider, a return spring, a clamping plate, a top block, a top spring, a guide roller frame and a guide slot box, two vertical sliders are slidably provided on the fixed plate, the two vertical sliders are respectively located at the upper and lower sides of the hollow positioning frame, a return spring is connected between the side of the two vertical sliders close to each other and the fixed plate, a clamping plate is fixedly installed on the side of the two vertical sliders away from the vertical plate, the hollow positioning frame is located between the two clamping plates, two top blocks are slidably provided on the two clamping plates, two top springs are connected between the two top blocks on the same side and the clamping plates on the same side, the two top springs are respectively wound around the two top blocks, a guide roller frame is installed on the side of the two vertical sliders away from each other, two guide rollers are provided on the side of the two guide roller frames away from each other, a guide slot box is installed on the side of the two connecting plates close to each other, and a guide slot is opened on the two side faces of the two guide slot boxes.

[0008] More preferably, each guide groove consists of a straight groove 1, a straight groove 2 and an inclined groove 1, the inclined groove 1 is located between the straight groove 1 and the straight groove 2, and the guide roller on the guide roller frame is located in the straight groove 1 of the guide groove.

[0009] More preferably, a slope is provided on each side of the two guide slot boxes that are close to each other.

[0010] More preferably, the opening and closing mechanism includes guide rails, electric sliders, opening and closing frames, sliding frames, vertical springs, return frames and electric suction cups, two guide rails are installed on the top of the box body, two electric sliders are slidably provided on the two guide rails, two electric sliders on different guide rails and located on the same straight line form a group, an opening and closing frame is connected between the two electric sliders in each group, a sliding frame is slidably provided on the two opening and closing frames, a vertical spring is connected between the sliding frame on the same side and the opening and closing frame on the same side, a return frame is installed at the lower part of the two sliding frames, four electric suction cups are respectively installed on the sides of the two return frames close to each other, and an arc-shaped rudder plate is adsorbed between the four electric suction cups on each side.

[0011] More preferably, it also includes an alignment mechanism, which is arranged on the hollow positioning frame. The alignment mechanism is used to align the rudder frame. The alignment mechanism includes an alignment frame, a roller and a drive plate. Four alignment frames are slidably provided on the hollow positioning frame. The upper two alignment frames form a group, and the lower two alignment frames form a group. Two rollers are provided on the sides of the two groups of alignment frames close to each other. The four rollers are respectively connected to the four alignment frames. Two drive plates are slidably provided on the hollow positioning frame. Two drive grooves are respectively opened on the two drive plates, and one side of the two drive plates is connected to the vertical plate.

[0012] More preferably, each driving groove consists of a vertical groove and an inclined groove 2, and each roller is located in the inclined groove 2 of each driving groove.

[0013] More preferably, a pressing mechanism is also included, which is arranged on the alignment frame and the driving plate, and is used for pressing and correcting the rudder frame, and the pressing mechanism includes a rotating shaft, a pressing plate, a gear, a torsion spring, a rack, a vertical roller and a pushing plate, each alignment frame is rotatably provided with a rotating shaft, a pressing plate is fixedly installed in the middle of each rotating shaft, a gear is fixedly installed on both sides of each rotating shaft, and a torsion spring is respectively connected to the two side surfaces inside the alignment frame on the side where the two gears are away from each other, and each alignment frame is slidably provided with two racks, one side of the two racks on the same alignment frame is provided with a plurality of tooth blocks, and the tooth blocks of the two racks on the same alignment frame are respectively meshed with the two gears on the same alignment frame, and a vertical roller is rotatably connected between the other sides of the two racks on the same alignment frame, and a pushing plate is fixedly installed on the side where the two driving plates are away from each other, and the pushing plate on the same side is located between the two vertical rollers on the same side.

[0014] More preferably, it further comprises a limiting frame, and two limiting frames are respectively installed at the lower parts of the two side surfaces of the box body.

[0015] The beneficial effects of the present invention are as follows: 1. By moving the two clamping plates toward each other, the sides of the two clamping plates that are close to each other will contact the upper and lower side surfaces of the rudder frame and the two curved rudder plates, so that the upper and lower sides of the two curved rudder plates can be aligned with the upper and lower side surfaces of the rudder frame, thereby improving the accuracy and efficiency of the alignment of the rudder frame and the two curved rudder plates, thereby improving the quality of the rudder frame and the two curved rudder plates after welding.

[0016] 2. Under the action of the second inclined groove of the driving groove, the four rollers will move towards each other, and the four rollers will drive the four alignment frames to move towards each other. The four alignment frames can contact the two sides of the rudder frame, and then make a preliminary correction to the position of the rudder frame, so that the rudder frame and the two curved rudder plates can fit more accurately, further improving the quality of the rudder frame and the two curved rudder plates after welding.

[0017] 3. Eight gears are driven to rotate by eight racks, and the eight gears drive four pressing plates to swing. The torsion springs are twisted accordingly, and the four pressing plates can press the rudder frame, thereby making a secondary correction to the position of the rudder frame, so that the rudder frame and the two curved rudder plates can fit more accurately, further improving the quality of the welding between the rudder frame and the two curved rudder plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the opening and closing mechanism of the present invention.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the fixing mechanism and the clamping mechanism of the present invention.

[0021] Figure 4 It is a schematic cross-sectional three-dimensional structure diagram of the fixing mechanism and the clamping mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the guide groove box of the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the guide roller frame, the guide groove box and the guide groove of the present invention.

[0024] Figure 7 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the fixing mechanism and the clamping mechanism of the present invention.

[0025] Figure 8 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the opening and closing mechanism of the present invention.

[0026] Fig. 9 The figure is a three-dimensional structural diagram of the clamping plate of the present invention clamping the rudder frame and the arc-shaped rudder plate.

[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the hollow positioning frame and the rudder frame of the present invention.

[0028] Fig.11 It is a cross-sectional three-dimensional structural schematic diagram of the alignment mechanism and the pressing mechanism of the present invention.

[0029] Fig.12 It is a cross-sectional three-dimensional structural schematic diagram of the pressing mechanism of the present invention.

[0030] Fig.13 It is a schematic diagram of the three-dimensional structure of the hollow positioning frame of the present invention.

[0031] Fig.14 It is a schematic diagram of the three-dimensional structure of the pressing mechanism of the present invention.

[0032] Fig.15 It is a three-dimensional structural schematic diagram of the hollow positioning frame and the alignment frame of the present invention.

[0033] Fig.16 It is a schematic diagram of the three-dimensional structure of the rack, vertical roller and push plate of the present invention.

[0034] Fig.17 It is a three-dimensional structural schematic diagram of the alignment mechanism and the pressing mechanism of the present invention.

[0035] Fig.18 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the alignment mechanism and the pressing mechanism of the present invention.

[0036] Fig.19 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the pressing mechanism of the present invention.

[0037] The markings of the components in the accompanying drawings are as follows: 1, box body, 2, frame, 3, fixed plate, 41, rudder frame, 42, arc rudder plate, 51, hollow positioning frame, 52, limit frame, 53, connecting plate, 54, electric push rod, 55, connecting plate, 56, vertical plate, 61, vertical slider, 62, reset spring, 63, splint, 64, top block, 65, top spring, 66, guide roller frame, 67, guide groove box, 68, guide groove, 71, guide rail, 72, electric slider, 73, opening and closing frame, 74, sliding frame, 75, vertical spring, 76, return frame, 77, electric suction cup, 81, alignment frame, 82, roller, 83, drive plate, 84, drive groove, 91, rotating shaft, 92, pressing plate, 93, gear, 94, torsion spring, 95, rack, 96, vertical roller, 97, push plate, 10, limit frame. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention are described clearly and completely below. 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 creative work are within the scope of protection of the present invention.

[0039] Embodiment 1: A welding device for a streamlined rudder, such as Figure 1-Figure 10 As shown, it includes a box body 1, a frame 2, a fixing plate 3, a fixing mechanism, a clamping mechanism and an opening and closing mechanism. A frame 2 is fixedly installed at the bottom of the box body 1, and a fixing plate 3 is vertically installed in the frame 2. The box body 1 and the fixing plate 3 are provided with a fixing mechanism, and the fixing mechanism is used to fix the steering frame 41. The box body 1 and the fixing plate 3 are provided with a clamping mechanism, and the clamping mechanism is used to clamp the steering frame 41. The box body 1 is provided with an opening and closing mechanism, and the opening and closing mechanism is used to drive the arc-shaped steering plate 42 to move.

[0040] The fixing mechanism includes a hollow positioning frame 51, a limit frame 52, a connecting plate 53, an electric push rod 54, a connecting plate 55 and a vertical plate 56. A hollow positioning frame 51 is slidably provided in the middle of the fixed plate 3. A limit frame 52 is fixedly installed on the hollow positioning frame 51. The limit frame 52 is located on one side of the fixed plate 3. A connecting plate 53 is installed on one side of the hollow positioning frame 51. The connecting plate 53 is slidably connected to the frame 2. An electric push rod 54 is fixedly installed on the top and bottom of the box body 1 respectively. A connecting plate 55 is fixedly installed on the telescopic rods of the two electric push rods 54. A vertical plate 56 is connected between the two connecting plates 55. The vertical plate 56 is located between the hollow positioning frame 51 and the connecting plate 53, and the vertical plate 56 contacts one side of the connecting plate 53.

[0041] The clamping mechanism includes a vertical slider 61, a reset spring 62, a clamping plate 63, a top block 64, a top spring 65, a guide roller frame 66 and a guide slot box 67. Two vertical sliders 61 are slidably provided on the fixed plate 3. The two vertical sliders 61 are respectively located on the upper and lower sides of the hollow positioning frame 51. The reset spring 62 is connected between the two vertical sliders 61 and the fixed plate 3. A clamping plate 63 is fixedly installed on the side of the two vertical sliders 61 away from the vertical plate 56. The hollow positioning frame 51 is located between the two clamping plates 63. Two top blocks 64 are slidably provided on the two clamping plates 63, two top springs 65 are connected between the two top blocks 64 on the same side and the clamping plates 63 on the same side, and the two top springs 65 are respectively wound around the two top blocks 64, a guide roller frame 66 is installed on the side of the two vertical sliders 61 away from each other, and two guide rollers are provided on the side of the two guide roller frames 66 away from each other, and a guide groove box 67 is installed on the side of the two connecting plates 55 close to each other, and a guide groove 68 is opened on the two side surfaces of the two guide groove boxes 67.

[0042] Each guide groove 68 is composed of a straight groove 1, a straight groove 2 and an inclined groove 1. The inclined groove 1 is located between the straight groove 1 and the straight groove 2, and the guide roller on the guide roller frame 66 is located in the straight groove 1 of the guide groove 68.

[0043] A slope is provided on each side of the two guide slot boxes 67 that are close to each other.

[0044] The opening and closing mechanism includes a guide rail 71, an electric slider 72, an opening and closing frame 73, a sliding frame 74, a vertical spring 75, a return frame 76 and an electric suction cup 77. Two guide rails 71 are installed on the top of the box body 1. Two electric sliders 72 are slidably provided on the two guide rails 71 respectively. Two electric sliders 72 on different guide rails 71 and located on the same straight line are a group. An opening and closing frame 73 is connected between the two electric sliders 72 of each group. A sliding frame 74 is slidably provided on the two opening and closing frames 73. A vertical spring 75 is connected between the sliding frame 74 on the same side and the opening and closing frame 73 on the same side. A return frame 76 is installed at the lower part of the two sliding frames 74. Four electric suction cups 77 are installed on the sides of the two return frames 76 close to each other, and an arc-shaped steering plate 42 is adsorbed between the four electric suction cups 77 on each side.

[0045] The operator first clamps the rudder frame 41 on the hollow positioning frame 51, and then controls the telescopic rods of the two electric push rods 54 to extend, and the telescopic rods of the two electric push rods 54 drive the two connecting plates 55 to move, and the two connecting plates 55 drive the two guide slot boxes 67 and the vertical plate 56 to move away from the connecting plate 53, and the vertical plate 56 is separated from the connecting plate 53. Initially, the reset spring 62 is in a stretched state. When the straight groove in the guide slot 68 moves to separate from the guide roller on the guide roller frame 66, under the action of the reset spring 62, the two vertical sliders 61 The two guide roller frames 66, the two clamping plates 63, the four top blocks 64 and the four top springs 65 will move in the direction of approaching each other, and the four top blocks 64 can respectively contact the upper and lower side surfaces of the rudder frame 41. The four top blocks 64 will first move a distance away from each other, and the four top springs 65 will be stretched initially. However, the side of the two clamping plates 63 that is close to each other will not contact the upper and lower side surfaces of the rudder frame 41. Under the action of the four top blocks 64 and the four top springs 65, the rudder frame 41 can be initially clamped. At this time, the guide roller frames 66 on the guide roller frames 66 The roller and the straight groove of the guide groove box 67 are located on the same straight line, and then the operator controls the telescopic rods of the two electric push rods 54 to shorten, and the telescopic rods of the two electric push rods 54 drive the two connecting plates 55 to move, and the two connecting plates 55 drive the two guide groove boxes 67 and the vertical plates 56 to move in the direction close to the connecting plate 53. After the vertical plates 56 contact the connecting plate 53, the vertical plates 56 drive the connecting plate 53, the hollow positioning frame 51 and the limit frame 52 to move. When the hollow positioning frame 51 is separated from the rudder frame 41, the telescopic rods of the two electric push rods 54 stop shrinking. The operator then sucks one arc-shaped steering plate 42 onto each of the four electric suction cups 77 on the two opening and closing frames 73. The two arc-shaped steering plates 42 are located on both sides of the steering frame 41. The operator then controls the two sets of electric sliders 72 to move toward each other. The two sets of electric sliders 72 drive the two opening and closing frames 73, the two sliding frames 74, the two vertical springs 75, the two return frames 76, the eight electric suction cups 77 and the two arc-shaped steering plates 42 to move toward each other. When the two arc-shaped steering plates 42 are closed, the steering frame 41 can be wrapped.Then the telescopic rods of the two electric push rods 54 are controlled to shorten again, and the telescopic rods of the two electric push rods 54 drive the two connecting plates 55 to move, and the two connecting plates 55 drive the two guide slot boxes 67 and the vertical plate 56 to move in the direction away from the fixed plate 3. After the inclined surfaces on the two guide slot boxes 67 contact the guide rollers on the two guide roller frames 66, the two guide roller frames 66 will drive the two vertical sliders 61, the two clamping plates 63, the four top blocks 64 and the four top springs 65 to move in the direction of approaching each other, and the reset springs 62 will be compressed accordingly, and the four top blocks 64 will move in the direction of moving away from each other again, and the four top springs 65 will be stretched for the second time, and the side of the two clamping plates 63 approaching each other will contact the upper and lower side surfaces of the rudder frame 41 and the two arc-shaped rudder plates 42. Under the action of the two sliding frames 74 and the two vertical springs 75, the two return frames 76 and the eight electric suction cups 77 The two arc-shaped rudder plates 42 can be moved up and down to adjust the position, so that the upper and lower sides of the two arc-shaped rudder plates 42 can be aligned with the upper and lower sides of the rudder frame 41. Since the two clamping plates 63 will not completely cover the rudder frame 41 and the two arc-shaped rudder plates 42, the operator can first weld the gaps between the rudder frame 41 and the two arc-shaped rudder plates 42 that are not covered. After welding the parts, the relative positions of the rudder frame 41 and the two arc-shaped rudder plates 42 can be fixed; then the operator controls the eight electric suction cups 77 to release pressure, and the eight electric suction cups 77 will separate from the two arc-shaped rudder plates 42, and then controls the two sets of electric sliders 72 to move away from each other, and the two sets of electric sliders 72 drive the two opening and closing frames 73, the two sliding frames 74, the two vertical springs 75, the two return frames 76, and the eight electric suction cups 77 to move away from each other;Then the operator controls the telescopic rods of the two electric push rods 54 to shorten again, and the telescopic rods of the two electric push rods 54 drive the two connecting plates 55 to move, and the two connecting plates 55 drive the two guide slot boxes 67, the vertical plates 56, the connecting plates 53, the hollow positioning frame 51 and the limit frame 52 to move. After the two guide slot boxes 67 are separated from the guide rollers on the two guide roller frames 66, under the action of the reset spring 62, the two vertical sliders 61, the two guide roller frames 66, the two clamping plates 63, the four top blocks 64 and the four top springs 65 will move away from each other, thereby releasing the rudder at the welding position. The operator takes out the partially welded rudder frame 41 and the arc rudder plate 42 for secondary welding. At this time, the guide rollers on the two guide roller frames 66 are located on the same straight line as the second straight groove on the guide groove 68. The operator then controls the telescopic rods of the two electric push rods 54 to extend. The telescopic rods of the two electric push rods 54 drive the two connecting plates 55 to move. The two connecting plates 55 drive the two guide groove boxes 67, the vertical plates 56, the connecting plates 53, the hollow positioning frames 51 and the limit frames 52 to move. The guide rollers on the two guide roller frames 66 will enter the second straight groove on the guide groove 68. After the guide rollers on the two guide roller frames 66 enter the inclined groove 1 on the guide groove 68, under the action of the inclined groove 1, the two guide roller frames 66 will move away from each other, and the two guide roller frames 66 will drive the two vertical sliders 61, the two guide roller frames 66, the two clamping plates 63, the four top blocks 64 and the four top springs 65 to move away from each other, and the reset spring 62 will be stretched accordingly. After the two guide roller frames 66 enter the straight groove 1, the hollow positioning frame 51 and the limit frame 52 move and reset, the limit frame 52 contacts one side of the fixed plate 3, and the telescopic rods of the two electric push rods 54 stop moving. By placing the rudder frame 41 on the hollow positioning frame 51, the rudder frame 41 can be initially positioned. After the two arc-shaped rudder plates 42 are closed, the two clamping plates 63 are moved toward each other. The sides of the two clamping plates 63 that are close to each other will contact the upper and lower sides of the rudder frame 41 and the two arc-shaped rudder plates 42, so that the upper and lower sides of the two arc-shaped rudder plates 42 can be aligned with the upper and lower sides of the rudder frame 41, thereby improving the accuracy and efficiency of the alignment of the rudder frame 41 and the two arc-shaped rudder plates 42, and further improving the quality of the rudder frame 41 and the two arc-shaped rudder plates 42 after welding. ;

[0046] Embodiment 2: Based on embodiment 1, Figure 11-Figure 18As shown, an alignment mechanism is also included. The alignment mechanism is arranged on the hollow positioning frame 51. The alignment mechanism is used to align the rudder frame 41. The alignment mechanism includes an alignment frame 81, a roller 82 and a drive plate 83. Four alignment frames 81 are slidably provided on the hollow positioning frame 51. The two upper alignment frames 81 form a group, and the two lower alignment frames 81 form a group. Two rollers 82 are provided on the sides of the two groups of alignment frames 81 that are close to each other. The four rollers 82 are respectively connected to the four alignment frames 81. Two drive plates 83 are slidably provided on the hollow positioning frame 51. Two drive grooves 84 are respectively opened on the two drive plates 83, and one side of the two drive plates 83 is connected to the vertical plate 56.

[0047] Each driving groove 84 is composed of a vertical groove and a second oblique groove, and each roller 82 is located in the second oblique groove of each driving groove 84 .

[0048] When the vertical plate 56 moves toward the direction approaching the fixed plate 3, the vertical plate 56 will drive the two driving plates 83 to move toward the direction approaching the fixed plate 3. Since the limiting frame 52 is in contact with one side of the fixed plate 3, the hollow positioning frame 51 is limited and will not move. Under the action of the inclined groove 2 of the driving groove 84, the four rollers 82 will move toward the direction approaching each other, and the four rollers 82 will drive the four alignment frames 81 to move toward the direction approaching each other. The four alignment frames 81 can contact the two sides of the rudder frame 41, so that the position of the rudder frame 41 can be initially corrected, so that the rudder frame 41 and the two alignment frames 81 can be aligned. The arc-shaped rudder plates 42 can fit more accurately, further improving the quality of welding between the rudder frame 41 and the two arc-shaped rudder plates 42. After the roller 82 moves into the vertical groove of the driving groove 84, the four rollers 82 and the four alignment frames 81 no longer move. When the vertical plate 56 drives the two driving plates 83 to move away from the fixed plate 3, after the roller 82 moves to the inclined groove 2 of the driving groove 84, the four rollers 82 will move away from each other, and the four rollers 82 will drive the four alignment frames 81 to move away from each other, and the four alignment frames 81 can be separated from the two sides of the rudder frame 41.

[0049] Embodiment 3: Based on embodiment 2, Figure 1 , Figure 2 , Fig.11 , Fig.12 , Fig.16 and Fig.19As shown, a pressing mechanism is also included, which is arranged on the alignment frame 81 and the driving plate 83. The pressing mechanism is used to press and correct the rudder frame 41. The pressing mechanism includes a rotating shaft 91, a pressing plate 92, a gear 93, a torsion spring 94, a rack 95, a vertical roller 96 and a pushing plate 97. Each alignment frame 81 is rotatably provided with a rotating shaft 91, a pressing plate 92 is fixedly installed in the middle of each rotating shaft 91, and a gear 93 is fixedly installed on both sides of each rotating shaft 91. The sides of the two gears 93 that are away from each other are respectively connected to the two side surfaces inside the alignment frame 81. A torsion spring 94 is connected between them, two racks 95 are slidably provided on each alignment frame 81, a plurality of tooth blocks are provided on one side of the two racks 95 on the same alignment frame 81, the tooth blocks of the two racks 95 on the same alignment frame 81 are respectively meshed with two gears 93 on the same alignment frame 81, a vertical roller 96 is rotatably connected between the other sides of the two racks 95 on the same alignment frame 81, a push plate 97 is fixedly installed on the side away from each other of the two driving plates 83, and the push plate 97 on the same side is located between the two vertical rollers 96 on the same side.

[0050] The box body 1 further comprises a limiting frame 10 , and two limiting frames 10 are respectively installed at the lower parts of the two side surfaces inside the box body 1 .

[0051] When the four alignment frames 81 move toward each other, they drive the eight racks 95 and the four vertical rollers 96 to move toward each other. The two vertical rollers 96 on the same side will contact the push plate 97 on the same side. After the roller 82 moves into the vertical groove of the driving groove 84, the two driving plates 83 drive the two push plates 97 to move away from the connecting plate 53. The two push plates 97 will push the four vertical rollers 96 to move away from the connecting plate 53. The four vertical rollers 96 drive the eight racks 95 to move away from the connecting plate 53. The eight racks 95 drive the eight gears 93 to rotate. The eight gears 93 drive the four pressing plates 92 to swing. The torsion springs 94 twist accordingly. The four pressing plates 92 can press the rudder frame 41, so that the position of the rudder frame 41 can be adjusted. A secondary correction is performed, so that the rudder frame 41 and the two arc-shaped rudder plates 42 can fit more accurately, and the quality of the rudder frame 41 and the two arc-shaped rudder plates 42 after welding is further improved; when the two driving plates 83 drive the two push plates 97 to move in the direction close to the connecting plate 53, the two push plates 97 will separate from the four vertical rollers 96, and under the action of the torsion spring 94, the four pressing plates 92 will swing in the opposite direction to reset, and the swing of the four pressing plates 92 drives the eight gears 93 to rotate in the opposite direction, and the eight gears 93 rotate in the opposite direction to drive the eight racks 95 to move and reset, and when the four alignment frames 81 move in the direction away from each other, they drive the eight racks 95 and the four vertical rollers 96 to move in the direction away from each other, and the two vertical rollers 96 on the same side will separate from the pushing plates 97 on the same side.

[0052] When the arc-shaped steering plate 42 is sucked onto the electric suction cup 77 , the operator can make the bottom of the arc-shaped steering plate 42 contact with the limiting frame 10 , thereby facilitating the operator to install the arc-shaped steering plate 42 more accurately and quickly.

[0053] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A welding device for a streamlined rudder, characterized in that: The invention comprises a box body (1), a frame (2), a fixing plate (3), a fixing mechanism, a clamping mechanism and an opening and closing mechanism. A frame (2) is fixedly installed at the bottom of the box body (1), a fixing plate (3) is vertically installed in the frame (2), the box body (1) and the fixing plate (3) are provided with a fixing mechanism, the fixing mechanism is used to fix the steering frame (41), the box body (1) and the fixing plate (3) are provided with a clamping mechanism, the clamping mechanism is used to clamp the steering frame (41), and the box body (1) is provided with an opening and closing mechanism, the opening and closing mechanism is used to drive the arc-shaped steering plate (42) to move.

2. A welding device for a streamlined rudder as claimed in claim 1, characterized in that: The fixing mechanism comprises a hollow positioning frame (51), a limit frame (52), a connecting plate (53), an electric push rod (54), a connecting plate (55) and a vertical plate (56). A hollow positioning frame (51) is slidably provided in the middle of the fixing plate (3). A limit frame (52) is fixedly installed on the hollow positioning frame (51). The limit frame (52) is located on one side of the fixing plate (3). A connecting plate (53) is installed on one side of the hollow positioning frame (51). The connecting plate (53) is slidably connected to the frame (2). An electric push rod (54) is fixedly installed on the top and bottom of the box body (1). A connecting plate (55) is fixedly installed on the telescopic rods of the two electric push rods (54). A vertical plate (56) is connected between the two connecting plates (55). The vertical plate (56) is located between the hollow positioning frame (51) and the connecting plate (53). The vertical plate (56) contacts one side of the connecting plate (53).

3. A welding device for a streamlined rudder as claimed in claim 2, characterized in that: The clamping mechanism comprises a vertical slider (61), a return spring (62), a clamping plate (63), a top block (64), a top spring (65), a guide roller frame (66) and a guide slot box (67). Two vertical sliders (61) are slidably provided on the fixed plate (3). The two vertical sliders (61) are respectively located at the upper and lower sides of the hollow positioning frame (51). A return spring (62) is connected between the sides of the two vertical sliders (61) close to each other and the fixed plate (3). A clamping plate (63) is fixedly installed on the sides of the two vertical sliders (61) away from the vertical plate (56). The hollow positioning frame (51) is located between the two clamping plates ( 63), two top blocks (64) are slidably provided on the two clamping plates (63), two top springs (65) are connected between the two top blocks (64) on the same side and the clamping plates (63) on the same side, and the two top springs (65) are respectively wound around the two top blocks (64), a guide roller frame (66) is installed on the side away from each other of the two vertical sliders (61), two guide rollers are provided on the side away from each other of the two guide roller frames (66), a guide groove box (67) is installed on the side close to each other of the two connecting plates (55), and a guide groove (68) is provided on the two side surfaces of the two guide groove boxes (67).

4. A welding device for a streamlined rudder as claimed in claim 3, characterized in that: Each guide groove (68) is composed of a straight groove 1, a straight groove 2 and an inclined groove 1, wherein the inclined groove 1 is located between the straight groove 1 and the straight groove 2, and the guide roller on the guide roller frame (66) is located in the straight groove 1 of the guide groove (68).

5. A welding device for a streamlined rudder as claimed in claim 3, characterized in that: A slope is provided on each side of the two guide slot boxes (67) that are close to each other.

6. A welding device for a streamlined rudder as claimed in claim 5, characterized in that: The opening and closing mechanism comprises a guide rail (71), an electric slider (72), an opening and closing frame (73), a sliding frame (74), a vertical spring (75), a return frame (76) and an electric suction cup (77). Two guide rails (71) are installed on the top of the box body (1). Two electric sliders (72) are slidably provided on the two guide rails (71). Two electric sliders (72) on different guide rails (71) and located on the same straight line form a group. An opening and closing frame (73) is connected between the two electric sliders (72) in each group. A sliding frame (74) is slidably provided on the two opening and closing frames (73). A vertical spring (75) is connected between the sliding frame (74) on the same side and the opening and closing frame (73) on the same side. A return frame (76) is installed at the bottom of the two sliding frames (74). Four electric suction cups (77) are installed on the sides of the two return frames (76) close to each other. An arc-shaped steering plate (42) is adsorbed between the four electric suction cups (77) on each side.

7. A welding device for a streamlined rudder as claimed in claim 6, characterized in that: The invention also comprises an alignment mechanism, which is arranged on the hollow positioning frame (51) and used for aligning the rudder frame (41). The alignment mechanism comprises an alignment frame (81), a roller (82) and a driving plate (83). Four alignment frames (81) are slidably arranged on the hollow positioning frame (51), the two upper alignment frames (81) form a group, and the two lower alignment frames (81) form a group. Two rollers (82) are arranged on the sides of the two groups of alignment frames (81) close to each other, and the four rollers (82) are respectively connected to the four alignment frames (81). Two driving plates (83) are slidably arranged on the hollow positioning frame (51), and two driving grooves (84) are respectively opened on the two driving plates (83). One side of the two driving plates (83) is connected to the vertical plate (56).

8. A welding device for a streamlined rudder as claimed in claim 7, characterized in that: Each driving groove (84) is composed of a vertical groove and a second inclined groove, and each roller (82) is located in the second inclined groove of each driving groove (84).

9. A welding device for a streamlined rudder as claimed in claim 8, characterized in that: The device also includes a pressing mechanism, which is arranged on the alignment frame (81) and the driving plate (83). The pressing mechanism is used to press and correct the rudder frame (41). The pressing mechanism includes a rotating shaft (91), a pressing plate (92), a gear (93), a torsion spring (94), a rack (95), a vertical roller (96) and a pushing plate (97). Each alignment frame (81) is rotatably provided with a rotating shaft (91), a pressing plate (92) is fixedly installed in the middle of each rotating shaft (91), and a gear (93) is fixedly installed on both sides of each rotating shaft (91). The two gears (93) are respectively connected to the two sides of the alignment frame (81) at the sides away from each other. A torsion spring (94) is connected between the surfaces, two racks (95) are slidably provided on each alignment frame (81), a plurality of tooth blocks are provided on one side of the two racks (95) on the same alignment frame (81), the tooth blocks of the two racks (95) on the same alignment frame (81) are respectively meshed with two gears (93) on the same alignment frame (81), a vertical roller (96) is rotatably connected between the other sides of the two racks (95) on the same alignment frame (81), a push plate (97) is fixedly installed on the side away from each other of the two drive plates (83), and the push plate (97) on the same side is located between the two vertical rollers (96) on the same side.

10. A welding device for a streamlined rudder as claimed in claim 1, characterized in that: It also includes a limiting frame (10), and two limiting frames (10) are respectively installed at the lower parts of the two side surfaces inside the box body (1).

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