Semi-automatic welding device for electro-tricycle carriage plate production and using method of semi-automatic welding device

Abstract

The invention relates to the technical field of carriage machining, and discloses a semi-automatic welding device for electro-tricycle carriage plate production and a using method thereof.The semi-automatic welding device comprises a mounting frame, a fixing frame is arranged above the mounting frame, and a first rotating shaft and a second rotating shaft are fixedly mounted on the right side and the left side of the fixing frame correspondingly; the first rotating shaft and the second rotating shaft are rotationally connected with the mounting frame, the right end of the second rotating shaft extends out of the mounting frame, the fixing mechanism comprises a plurality of L-shaped movable blocks and a movable assembly, and the movable assembly is used for driving the L-shaped movable blocks to descend. An L-shaped hollow fixing plate drives a triangular plate to make contact with a carriage plate, the center of the carriage plate is parallel to the center of a containing circular plate, at the moment, a limiting spring is stretched and deformed, if the carriage plate is thick, the carriage plate is pushed by the L-shaped hollow fixing plate, and if the carriage plate is thin, the carriage plate is pushed by the triangular plate, so that the carriage plates with different thicknesses are flexibly corrected, and the correction efficiency is improved. And it is guaranteed that the carriage plate can be accurately corrected in the welding process.

Description

Technical Field

[0001] The present invention relates to the technical field of carriage processing equipment, and particularly to a semi-automatic welding device for the production of electric tricycle carriage boards and its usage method. Background Art

[0002] An electric tricycle is a three-wheel transport vehicle powered by a battery and driven by a motor for carrying goods or people. Electric tricycles are divided into various models such as household type, freight type, and factory type according to their uses. The carriage of an electric tricycle generally consists of a left side plate, a right side plate, a front plate, a top plate, a carriage door, and a carriage chassis. The left side plate, right side plate, front plate, and top plate of the carriage are mainly formed by welding a steel skeleton.

[0003] During the welding process of electric tricycle carriage boards, there are welding dead angles. Most welding devices cannot effectively adjust the angle, and manual adjustment is rather troublesome, which affects the welding precision and efficiency. Moreover, there are many types of carriage boards, such as thicker and wider ones. The existing welding devices cannot meet the alignment and fixation of carriage boards of different sizes, and are inconvenient to use. Summary of the Invention

[0004] The purpose of the present invention is to provide a semi-automatic welding device for the production of electric tricycle carriage boards and its usage method, so as to solve the problems that there are welding dead angles during the welding process of electric tricycle carriage boards, most welding devices cannot effectively adjust the angle, manual adjustment is rather troublesome, which affects the welding precision and efficiency, and there are many types of carriage boards, such as thicker and wider ones. The existing welding devices cannot meet the positioning and fixation of carriage boards of different sizes, and are inconvenient to use.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a semi-automatic welding device for the production of electric tricycle carriage boards, including a mounting frame. A fixing frame is arranged above the mounting frame. A rotating shaft one and a rotating shaft two are respectively fixedly installed on the right side and the left side of the fixing frame. Both the rotating shaft one and the rotating shaft two are rotatably connected to the mounting frame. The right end of the rotating shaft two extends outside the mounting frame. The device further includes: A fixing mechanism, which includes a plurality of L-shaped movable blocks, a moving component for driving the L-shaped movable blocks to descend, a plurality of fixing components, and the L-shaped movable blocks for driving the fixing components to move; The moving component includes a plurality of T-shaped fixed round rods fixedly installed on the top of the fixing frame. A rectangular frame is slidably sleeved on the plurality of T-shaped fixed round rods. A fixing spring is sleeved on each of the plurality of T-shaped fixed round rods. The top ends of the plurality of fixing springs are fixedly connected to the rectangular frame, and the bottom ends of the plurality of fixing springs are fixedly connected to the fixing frame. The plurality of L-shaped movable blocks are all fixedly connected to the rectangular frame; The fixing component includes an L-shaped hollow fixing plate slidably mounted on the fixing frame. A limiting spring is fixedly installed on the inner wall of the back surface of the L-shaped hollow fixing plate, and the front end of the limiting spring is fixedly connected to the fixing frame. A movable spring is fixedly installed on the inner wall of the top of the L-shaped hollow fixing plate, and a triangular plate is fixedly installed at the bottom end of the movable spring.

[0006] Further, fixing plates are respectively and fixedly installed on the inner walls of the left side and the right side of the fixing frame. Telescopic springs are respectively and fixedly installed on the tops of the two fixing plates, and triangular blocks are respectively and fixedly installed at the top ends of the two telescopic springs. Both of the two triangular blocks are adapted to the mounting frame.

[0007] Further, a dust removal mechanism is arranged on the back surface of the fixing frame. The dust removal mechanism includes a U-shaped mounting plate fixedly installed on the back surface of the fixing frame. A wind box is fixedly installed at the bottom of the U-shaped mounting plate. A threaded rod is rotatably installed in the U-shaped mounting plate, and the rotation of the threaded rod penetrates through the wind box. A driving motor is fixedly installed at the bottom of the wind box, and the output shaft of the driving motor is fixedly connected to the bottom end of the threaded rod. A plurality of fan blades are fixedly installed on the threaded rod, and an exhaust pipe is fixedly installed at the bottom of the wind box.

[0008] Further, two suction pipes are fixedly installed on the outer wall of the wind box. A through groove is formed in the fixing frame, and a plurality of suction holes are formed in the inner wall of the fixing frame. All of the plurality of suction holes communicate with the through groove, and one end of each of the two through grooves away from each other communicates with the suction hole.

[0009] Further, a clamping mechanism is arranged on the threaded rod. The clamping mechanism includes a movable frame threadedly sleeved on the threaded rod. Two round rods are fixedly installed at the bottom of the movable frame, and clamping plates are respectively and fixedly installed at the bottom ends of the two round rods.

[0010] Further, a limiting round rod is fixedly installed in the U-shaped mounting plate. The limiting round rod penetrates through the movable frame and is slidably connected to the movable frame. Two adapting springs are fixedly installed on the inner wall of the bottom of the U-shaped mounting plate. An adapting plate is slidably sleeved on the limiting round rod, and the top ends of the two adapting springs are fixedly connected to the adapting plate. A strip-shaped plate is fixedly installed on the front surface of the movable frame. The strip-shaped plate penetrates through the U-shaped mounting plate and is slidably connected to the U-shaped mounting plate.

[0011] Further, a T-shaped sliding rod is fixedly installed on the top of the rectangular frame. A circular plate is slidably sleeved on the T-shaped sliding rod. A compression spring is sleeved on the T-shaped sliding rod. The top end of the compression spring is fixedly connected to the circular plate, and the bottom end of the compression spring is fixedly connected to the rectangular frame. The T-shaped sliding rod penetrates through the strip-shaped plate and is slidably connected to the strip-shaped plate.

[0012] Further, a clamping mechanism is provided on the fixing frame. The clamping mechanism includes chutes respectively opened on the inner walls of the front and back of the fixing frame. Slide bars are respectively and fixedly installed in the two chutes. Sliding plates are respectively and slidably sleeved on the two slide bars. A T-shaped threaded rod is threadedly installed through the sliding plate. A placing circular plate is rotatably installed at the top of the T-shaped threaded rod.

[0013] Further, a rectangular mounting plate is fixedly installed on the right side of the mounting frame. An electric telescopic rod is fixedly installed on the top of the rectangular mounting plate. A toothed plate is fixedly installed at the output end of the electric telescopic rod. A gear is fixedly sleeved on the second rotating shaft. The toothed plate meshes with the gear.

[0014] Further, a semi-automatic welding device method for producing an electric tricycle carriage board is as follows: S1: Adjust the parallel position of the carriage board: The rectangular frame will drive the L-shaped movable block to descend. The L-shaped movable block will contact the L-shaped hollow fixing plate. The L-shaped hollow fixing plate will move towards the direction close to the carriage board under the action of its inclined surface. The L-shaped hollow fixing plate driving the triangular plate will contact the carriage board and make the center of the carriage board parallel to the center of the placing circular plate. At this time, the limiting spring undergoes tensile deformation. If the carriage board is thicker, it will be pushed by the L-shaped hollow fixing plate. If the carriage board is thinner, it will be pushed by the triangular plate, so as to flexibly correct carriage boards with different thicknesses; S2: Adjust the central position of the carriage board: The carriage board will adjust its balance under the action of the inclined surface of the triangular block and be in full contact with the placing circular plate. During the descent of the carriage board, the triangular block will descend correspondingly for carriage boards of different lengths, so as to better adjust the position of the carriage board and make the center of the carriage board coincide with the center of the placing circular plate on the basis of the adjustment of the L-shaped hollow fixing plate. During the descent of the movable frame, it will contact and drive the adapting plate to descend. At this time, the adapting spring undergoes compressive deformation. When the movable frame leaves the thread on the threaded rod, the adapting spring will make the movable frame stop moving under the action of its elastic force; S3: Flexibly adjust the position of the carriage board: When the carriage board is wider, the triangular plate will stop moving in a short time when it contacts the carriage board. At this time, the strip plate will still keep descending. During the process of the strip plate driving the circular plate to descend, the compression spring will undergo a deeper compression. The distance of the descent of the strip plate will be compressed onto the circular plate and the compression spring. At this time, the rectangular frame will also stop moving according to the width of the carriage board, so as to improve the clamping flexibility of the device for carriage boards of different widths; S4: Reduce welding fumes: During the movement of the sliding plate, it will come into contact with the triangular plate. Since the triangular plate is triangular, when the sliding plate touches the triangular plate, the triangular plate will slide into the L-shaped hollow fixing plate, allowing the sliding plate to pass through quickly, thus preventing the sliding plate from getting stuck during movement and affecting the welding work. During the rotation of the threaded rod, several fan blades will be driven to rotate. The rotation of the fan blades will generate a suction force, which will suck the fumes generated during welding into the air box through the suction pipe, through slots, and suction holes, and discharge them to other places through the exhaust pipe, preventing excessive fumes from causing pores during welding and affecting the welding quality, and also avoiding the fumes from affecting the welding vision.

[0015] The present invention has the following beneficial effects: (1) For the semi-automatic welding device for the production of the carriage board of an electric tricycle of the present invention, the carriage board to be welded is placed on the placing circular plate within the fixing frame. At this time, the carriage board presses on the triangular block, and the telescopic spring undergoes a compressive deformation. Then, the driving motor is started. The driving motor drives the threaded rod to rotate, and the threaded rod drives the movable frame to descend. The movable frame drives the strip-shaped plate to descend. When the strip-shaped plate touches the circular plate, it drives the circular plate to descend. At this time, the T-shaped sliding rod undergoes a compressive deformation, and the corresponding rectangular frame descends. At this time, the fixing spring undergoes a compressive deformation, and the rectangular frame drives the L-shaped movable block to descend. The L-shaped movable block contacts the L-shaped hollow fixing plate, and the L-shaped hollow fixing plate moves towards the direction close to the carriage board under the action of its inclined surface. The L-shaped hollow fixing plate drives the triangular plate to contact the carriage board and makes the center of the carriage board parallel to the center of the placing circular plate. At this time, the limit spring undergoes a tensile deformation. If the carriage board is thicker, it will be pushed by the L-shaped hollow fixing plate. If the carriage board is thinner, it will be pushed by the triangular plate, thus flexibly correcting carriage boards of different thicknesses, ensuring that the carriage board can be accurately positioned during welding, and improving the convenience and accuracy of welding; (2) For the semi-automatic welding device for the production of the carriage board of an electric tricycle of the present invention, during the descent of the movable frame, the round rod descends. The round rod drives the clamping plate to descend. The clamping plate contacts the carriage board and drives the carriage board to descend. The carriage board adjusts its balance under the action of the inclined surface of the triangular block and is in full contact with the placing circular plate. During the descent of the carriage board, the triangular block descends correspondingly for carriage boards of different lengths, thus better adjusting the position of the carriage board, making the center of the carriage board coincide with the center of the placing circular plate on the basis of the adjustment of the L-shaped hollow fixing plate. During the descent of the movable frame, it contacts and drives the adaptor plate to descend. At this time, the adaptor spring undergoes a compressive deformation. When the movable frame leaves the thread on the threaded rod, the adaptor spring will make the movable frame stop moving under the action of its elastic force. At this time, the movable frame is in a semi-disengaged state from the thread and will not affect the normal rotation of the threaded rod; (3) For the semi-automatic welding device for the production of the carriage board of an electric tricycle according to the present invention, when the carriage board is relatively wide, the triangular plate will stop moving in a short time when it touches the carriage board. At this time, the strip board will still continue to descend. During the process of the strip board driving the circular plate to descend, the compression spring will be compressed more deeply, and the distance of the strip board's descent will be compressed onto the circular plate and the compression spring. At this time, the rectangular frame will also stop moving according to the width of the carriage board, thereby improving the clamping flexibility of the device for carriage boards of different widths. When it is necessary to flip the carriage board for welding, start the electric telescopic rod. The electric telescopic rod drives the toothed plate to rise, the toothed plate drives the gear to rotate, the gear drives the fixed frame to rotate, and the fixed frame drives the carriage board to rotate, turning the original front side up to the front side down. At this time, it is convenient to weld the back side of the carriage board. Since spatter will be generated during the welding process, the spatter will enter the chute. During the rotation of the device, the spatter will fall out of the chute, ensuring the cleanliness of the chute. When it is necessary to adjust the welding position of the carriage board, rotate the T-shaped threaded rod. The T-shaped threaded rod will drive the placement circular plate to move away from the carriage board, and then slide the sliding plate. The sliding plate will drive the placement circular plate away from the position to be welded, thereby improving the flexibility of welding; (4) For the semi-automatic welding device for the production of the carriage board of an electric tricycle according to the present invention, during the movement of the sliding plate, it will touch the triangular plate. Since the triangular plate is triangular, when the sliding plate touches the triangular plate, it will cause the triangular plate to slide into the L-shaped hollow fixed plate, so that the sliding plate can pass quickly, thus avoiding the phenomenon of jamming when the sliding plate moves and affecting the welding work. During the rotation of the threaded rod, it will drive several fan blades to rotate. The rotation of the fan blades will generate a suction force. The suction force will suck the smoke generated during welding into the air box through the suction pipe, through groove and suction holes, and discharge it to other places through the exhaust pipe, preventing too much smoke from generating pores during the welding process and affecting the welding quality, and also avoiding the smoke from affecting the welding sight.

[0016] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional structure schematic diagram of the present invention; Figure 3 For the present invention Figure 2Schematic diagram of the enlarged structure of A; Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged structure of B; Figure 5 Partial bottom-up sectional structure diagram of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of C; Figure 7 Partial side sectional structure diagram of the present invention; Figure 8 Schematic diagram of the method steps of the present invention.

[0019] In the drawings, the list of components represented by each reference numeral is as follows: In the figure: 1, mounting frame; 2, fixing frame; 3, first rotating shaft; 4, second rotating shaft; 5, fixing mechanism; 501, T-shaped fixing round rod; 502, rectangular frame; 503, fixing spring; 504, L-shaped movable block; 505, L-shaped hollow fixing plate; 506, limiting spring; 507, movable spring; 508, triangular plate; 509, fixing plate; 510, telescopic spring; 511, triangular block; 6, dust removal mechanism; 601, C-shaped mounting plate; 602, air box; 6021, threaded rod; 603, driving motor; 604, fan blade; 605, exhaust pipe; 606, air suction pipe; 607, through groove; 608, air suction hole; 7, clamping mechanism; 701, movable frame; 702, round rod; 703, clamping plate; 704, limiting round rod; 705, adapting spring; 706, adapting plate; 707, strip plate; 708, T-shaped sliding rod; 709, circular plate; 710, compression spring; 8, sliding mechanism; 801, chute; 802, sliding rod; 803, sliding plate; 804, T-shaped threaded rod; 805, placing round plate; 806, rectangular mounting plate; 807, electric telescopic rod; 808, toothed plate; 809, gear. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figure 1 - Figure 8As shown in the figure, the present invention is a semi-automatic welding device for the production of the carriage plate of an electric tricycle, including a mounting frame 1. Above the mounting frame 1, there is a fixing frame 2. On the right and left sides of the fixing frame 2, a first rotating shaft 3 and a second rotating shaft 4 are respectively fixedly installed. Both the first rotating shaft 3 and the second rotating shaft 4 are rotatably connected to the mounting frame 1. The right end of the second rotating shaft 4 extends outside the mounting frame 1. The device further includes: A fixing mechanism 5, which includes a number of L-shaped movable blocks 504, a movable component for driving the L-shaped movable blocks 504 to descend, a number of fixing components, and the L-shaped movable blocks 504 are used to drive the fixing components to move; The movable component includes a number of T-shaped fixed round rods 501 fixedly installed on the top of the fixing frame 2. A rectangular frame 502 is slidably sleeved on the number of T-shaped fixed round rods 501. A number of fixing springs 503 are respectively sleeved on the number of T-shaped fixed round rods 501. The top ends of the number of fixing springs 503 are fixedly connected to the rectangular frame 502, and the bottom ends of the number of fixing springs 503 are fixedly connected to the fixing frame 2. The number of L-shaped movable blocks 504 are all fixedly connected to the rectangular frame 502; The fixing component includes an L-shaped hollow fixing plate 505 slidably installed on the fixing frame 2. A limiting spring 506 is fixedly installed on the inner wall of the back surface of the L-shaped hollow fixing plate 505, and the front end of the limiting spring 506 is fixedly connected to the fixing frame 2. A movable spring 507 is fixedly installed on the inner wall of the top of the L-shaped hollow fixing plate 505, and the bottom end of the movable spring 507 is fixedly installed with a triangular plate 508.

[0022] As Figure 2 shown, on the left inner wall and the right inner wall of the fixing frame 2, fixing plates 509 are respectively fixedly installed. On the tops of the two fixing plates 509, telescopic springs 510 are respectively fixedly installed. On the top ends of the two telescopic springs 510, triangular blocks 511 are respectively fixedly installed. Both of the two triangular blocks 511 are adapted to the mounting frame 1.

[0023] The carriage plate will adjust its balance under the action of the inclined surface of the triangular block 511 and be in full contact with the placing circular plate 805. During the descent of the carriage plate, the triangular block 511 will descend accordingly for carriage plates of different lengths, so as to better adjust the position of the carriage plate.

[0024] As Figure 6 shown, a dust removal mechanism 6 is provided on the back of the fixing frame 2. The dust removal mechanism 6 includes a U-shaped mounting plate 601 fixedly installed on the back of the fixing frame 2. A wind box 602 is fixedly installed at the bottom of the U-shaped mounting plate 601. A threaded rod 6021 is rotatably installed in the U-shaped mounting plate 601. The rotation of the threaded rod 6021 penetrates through the wind box 602. A driving motor 603 is fixedly installed at the bottom of the wind box 602. The output shaft of the driving motor 603 is fixedly connected to the bottom end of the threaded rod 6021. A number of fan blades 604 are fixedly installed on the threaded rod 6021. A smoke exhaust pipe 605 is fixedly installed at the bottom of the wind box 602.

[0025] During the rotation of the threaded rod 6021, a number of fan blades 604 will be driven to rotate, and the rotation of the fan blades 604 will generate a suction force.

[0026] Such as Figure 6 and Figure 7 As shown, two suction pipes 606 are fixedly installed on the outer wall of the air box 602. A through groove 607 is formed in the fixing frame 2, and a number of suction holes 608 are formed in the inner wall of the fixing frame 2. The number of suction holes 608 communicates with the through groove 607, and one end of the two through grooves 607 away from each other communicates with the suction hole 608.

[0027] The suction force will suck the fumes generated during welding into the air box 602 through the suction pipes 606, the through groove 607 and the suction holes 608, and discharge them to other places through the exhaust pipe 605, preventing excessive fumes from generating pores during welding and affecting the welding quality, and also avoiding the fumes from affecting the welding vision.

[0028] Such as Figure 3 and Figure 5 As shown, a clamping mechanism 7 is provided on the threaded rod 6021. The clamping mechanism 7 includes a movable frame 701 threadedly sleeved on the threaded rod 6021. Two round rods 702 are fixedly installed at the bottom of the movable frame 701, and clamping plates 703 are fixedly installed at the bottom ends of the two round rods 702 respectively.

[0029] During the descent of the movable frame 701, the round rods 702 will descend, the round rods 702 will drive the clamping plates 703 to descend, and the clamping plates 703 will contact the carriage plate and drive the carriage plate to descend.

[0030] Such as Figure 6 As shown, a limiting round rod 704 is fixedly installed inside the U-shaped mounting plate 601. The limiting round rod 704 passes through the movable frame 701 and is slidably connected with the movable frame 701. Two adaptor springs 705 are fixedly installed on the bottom inner wall of the U-shaped mounting plate 601. An adaptor plate 706 is slidably sleeved on the limiting round rod 704. The top ends of the two adaptor springs 705 are fixedly connected with the adaptor plate 706. A strip plate 707 is fixedly installed on the front surface of the movable frame 701. The strip plate 707 passes through the U-shaped mounting plate 601 and is slidably connected with the U-shaped mounting plate 601.

[0031] During the descent of the movable frame 701, it will contact and drive the adaptor plate 706 to descend. At this time, the adaptor springs 705 will undergo compressive deformation. When the movable frame 701 leaves the thread on the threaded rod 6021, the adaptor springs 705 will, under the action of their elastic force, cause the movable frame 701 to stop moving. At this time, the movable frame 701 is in a semi-disengaged thread state and will not affect the normal rotation of the threaded rod 6021.

[0032] Such as Figure 3As shown in the figure, a T-shaped sliding rod 708 is fixedly installed at the top of the rectangular frame 502. A circular plate 709 is slidably sleeved on the T-shaped sliding rod 708. A compression spring 710 is sleeved on the T-shaped sliding rod 708. The top end of the compression spring 710 is fixedly connected to the circular plate 709, and the bottom end of the compression spring 710 is fixedly connected to the rectangular frame 502. The T-shaped sliding rod 708 penetrates through the strip-shaped plate 707 and is slidably connected to the strip-shaped plate 707.

[0033] During the process of the strip-shaped plate 707 driving the circular plate 709 to descend, the compression spring 710 will be compressed more deeply, and the descending distance of the strip-shaped plate 707 will be compressed onto the circular plate 709 and the compression spring 710. At this time, the rectangular frame 502 will also stop moving according to the width of the carriage plate, thereby improving the clamping flexibility of the device for carriage plates of different widths.

[0034] As Figure 2 and Figure 7 As shown in the figure, a clamping mechanism 7 is provided on the fixed frame 2. The clamping mechanism 7 includes sliding grooves 801 respectively opened on the front inner wall and the back inner wall of the fixed frame 2. Slide rods 802 are respectively fixedly installed in the two sliding grooves 801. Sliding plates 803 are respectively slidably sleeved on the two slide rods 802. A T-shaped threaded rod 804 is threadedly installed through the sliding plate 803. A placing circular plate 805 is rotatably installed at the top end of the T-shaped threaded rod 804.

[0035] During the rotation of the device, the splashes will fall out from the sliding grooves 801 to ensure the cleanliness of the sliding grooves 801. When it is necessary to adjust the welding position of the carriage plate, rotate the T-shaped threaded rod 804. The T-shaped threaded rod 804 will drive the placing circular plate 805 to move away from the carriage plate, and then slide the sliding plate 803. The sliding plate 803 will drive the placing circular plate 805 away from the position to be welded, thereby improving the welding flexibility.

[0036] As Figure 1 As shown in the figure, a rectangular mounting plate 806 is fixedly installed on the right side of the mounting frame 1. An electric telescopic rod 807 is fixedly installed at the top of the rectangular mounting plate 806. A toothed plate 808 is fixedly installed at the output end of the electric telescopic rod 807. A gear 809 is fixedly sleeved on the rotating shaft two 4. The toothed plate 808 is meshed with the gear 809.

[0037] When it is necessary to flip the carriage plate for welding, start the electric telescopic rod 807. The electric telescopic rod 807 drives the toothed plate 808 to rise. The toothed plate 808 drives the gear 809 to rotate. The gear 809 drives the fixed frame 2 to rotate. The fixed frame 2 drives the carriage plate to rotate so that the original front side facing up is rotated to the front side facing down. At this time, it is convenient to weld the back side of the carriage plate. Since splashes will be generated during the welding process, the splashes will enter the sliding grooves 801.

[0038] As Figure 1 - Figure 8As shown in the figure, a method for a semi-automatic welding device in the production of the carriage board of an electric tricycle, the method steps are as follows: S1: Adjust the parallel position of the carriage board: The rectangular frame 502 drives the L-shaped movable block 504 to descend. The L-shaped movable block 504 contacts the L-shaped hollow fixed plate 505. The L-shaped hollow fixed plate 505 moves towards the direction close to the carriage board under the action of its inclined surface. The L-shaped hollow fixed plate 505 drives the triangular plate 508 to contact the carriage board and make the center of the carriage board parallel to the center of the placement circular plate 805. At this time, the limit spring 506 undergoes tensile deformation. If the carriage board is thick, it is pushed by the L-shaped hollow fixed plate 505. If the carriage board is thin, it is pushed by the triangular plate 508, so as to flexibly correct carriage boards with different thicknesses; S2: Adjust the central position of the carriage board: The carriage board adjusts its balance under the action of the inclined surface of the triangular block 511 and is in full contact with the placement circular plate 805. During the descent of the carriage board, the triangular block 511 descends correspondingly for carriage boards of different lengths, so as to better adjust the position of the carriage board, making the center of the carriage board coincide with the center of the placement circular plate 805 on the basis of the adjustment of the L-shaped hollow fixed plate 505. During the descent of the movable frame 701, it contacts and drives the adaptation plate 706 to descend. At this time, the adaptation spring 705 undergoes compressive deformation. When the movable frame 701 leaves the thread on the threaded rod 6021, the adaptation spring 705 makes the movable frame 701 stop moving under the action of its elastic force; S3: Flexibly adjust the position of the carriage board: When the carriage board is wide, the triangular plate 508 stops moving in a short time when it contacts the carriage board. At this time, the strip plate 707 still descends continuously. During the process of the strip plate 707 driving the circular plate 709 to descend, the compression spring 710 undergoes a deeper compression, compressing the distance of the descent of the strip plate 707 onto the circular plate 709 and the compression spring 710. At this time, the rectangular frame 502 also stops moving according to the width of the carriage board, so as to improve the clamping flexibility of the device for carriage boards of different widths; S4: Reduce welding fumes: During the movement of the sliding plate 803, it contacts the triangular plate 508. Since the triangular plate 508 is triangular, the sliding plate 803 makes the triangular plate 508 slide into the L-shaped hollow fixed plate 505 when it contacts the triangular plate 508, so that the sliding plate 803 can quickly pass through, thus avoiding the phenomenon of jamming when the sliding plate 803 moves and affecting the welding work. During the rotation of the threaded rod 6021, it drives a number of fan blades 604 to rotate. The rotation of the fan blades 604 generates a suction force. The suction force inhales the fumes generated during welding into the air box 602 through the suction pipe 606, the through groove 607 and the suction holes 608, and discharges them to other places through the exhaust pipe 605, preventing too much fumes from generating pores during welding and affecting the welding quality, and also avoiding the fumes affecting the welding sight.

[0039] The preferred embodiments of the present invention disclosed above are only used to assist in the description of the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A semi-automatic welding device for the production of the carriage board of an electric tricycle, comprising a mounting frame (1), a fixing frame (2) is arranged above the mounting frame (1), a first rotating shaft (3) and a second rotating shaft (4) are respectively and fixedly installed on the right side and the left side of the fixing frame (2), the first rotating shaft (3) and the second rotating shaft (4) are both rotationally connected with the mounting frame (1), and the right end of the second rotating shaft (4) extends outside the mounting frame (1), and is characterized in that, Further included are: a fixing mechanism (5), the fixing mechanism (5) includes a plurality of L-shaped movable blocks (504), a movable component for driving the L-shaped movable blocks (504) to descend, a plurality of fixing components, and the L-shaped movable blocks (504) are used to drive the fixing components to move; The movable component includes a plurality of T-shaped fixed round rods (501) fixedly installed on the top of the fixing frame (2). A rectangular frame (502) is slidably sleeved on the plurality of T-shaped fixed round rods (501). A fixing spring (503) is sleeved on each of the plurality of T-shaped fixed round rods (501). The top ends of the plurality of fixing springs (503) are fixedly connected to the rectangular frame (502), and the bottom ends of the plurality of fixing springs (503) are fixedly connected to the fixing frame (2). The plurality of L-shaped movable blocks (504) are all fixedly connected to the rectangular frame (502); The fixing component includes an L-shaped hollow fixing plate (505) slidably installed on the fixing frame (2). A limiting spring (506) is fixedly installed on the inner wall of the back surface of the L-shaped hollow fixing plate (505). The front end of the limiting spring (506) is fixedly connected to the fixing frame (2). A movable spring (507) is fixedly installed on the inner wall of the top of the L-shaped hollow fixing plate (505). A triangular plate (508) is fixedly installed at the bottom end of the movable spring (507).

2. The semi-automatic welding device for the production of the carriage board of an electric tricycle according to claim 1, characterized in that: Fixing plates (509) are respectively fixedly installed on the left inner wall and the right inner wall of the fixing frame (2). Telescopic springs (510) are respectively fixedly installed at the tops of the two fixing plates (509). Triangular blocks (511) are respectively fixedly installed at the top ends of the two telescopic springs (510). The two triangular blocks (511) are both adapted to the mounting frame (1).

3. A semi-automatic welding device for the production of the carriage board of an electric tricycle according to claim 2, characterized in that: A dust removal mechanism (6) is arranged on the back surface of the fixing frame (2). The dust removal mechanism (6) includes a U-shaped mounting plate (601) fixedly installed on the back surface of the fixing frame (2). An air box (602) is fixedly installed at the bottom of the U-shaped mounting plate (601). A threaded rod (6021) is rotatably installed in the U-shaped mounting plate (601). The rotation of the threaded rod (6021) penetrates through the air box (602). A driving motor (603) is fixedly installed at the bottom of the air box (602). The output shaft of the driving motor (603) is fixedly connected to the bottom end of the threaded rod (6021). A plurality of fan blades (604) are fixedly installed on the threaded rod (6021). A smoke exhaust pipe (605) is fixedly installed at the bottom of the air box (602).

4. A semi-automatic welding device for the production of an electric tricycle carriage board according to claim 3, characterized in that: Two suction pipes (606) are fixedly installed on the outer wall of the air box (602). A through groove (607) is formed in the fixing frame (2). A plurality of air suction holes (608) are formed in the inner wall of the fixing frame (2). The plurality of air suction holes (608) are all communicated with the through groove (607). One end of each of the two through grooves (607) away from each other is communicated with the air suction hole (608).

5. A semi-automatic welding device for the production of an electric tricycle carriage board according to claim 4, characterized in that: A clamping mechanism (7) is provided on the threaded rod (6021). The clamping mechanism (7) includes a movable frame (701) threadedly sleeved on the threaded rod (6021). Two round rods (702) are fixedly installed at the bottom of the movable frame (701), and clamping plates (703) are fixedly installed at the bottom ends of the two round rods (702).

6. A semi-automatic welding device for the production of an electric tricycle carriage board according to claim 5, characterized in that: A limiting round rod (704) is fixedly installed inside the U-shaped mounting plate (601). The limiting round rod (704) penetrates through the movable frame (701) and is slidably connected to the movable frame (701). Two adaption springs (705) are fixedly installed on the bottom inner wall of the U-shaped mounting plate (601). An adaption plate (706) is slidably sleeved on the limiting round rod (704). The top ends of the two adaption springs (705) are fixedly connected to the adaption plate (706). A strip-shaped plate (707) is fixedly installed on the front surface of the movable frame (701). The strip-shaped plate (707) penetrates through the U-shaped mounting plate (601) and is slidably connected to the U-shaped mounting plate (601).

7. A semi-automatic welding device for producing the carriage board of an electric tricycle according to claim 6, characterized in that: A T-shaped sliding rod (708) is fixedly installed at the top of the rectangular frame (502). A circular plate (709) is slidably sleeved on the T-shaped sliding rod (708). A compression spring (710) is sleeved on the T-shaped sliding rod (708). The top end of the compression spring (710) is fixedly connected to the circular plate (709). The bottom end of the compression spring (710) is fixedly connected to the rectangular frame (502). The T-shaped sliding rod (708) penetrates through the strip-shaped plate (707) and is slidably connected to the strip-shaped plate (707).

8. A semi-automatic welding device for producing the carriage board of an electric tricycle according to claim 7, characterized in that: A clamping mechanism (7) is provided on the fixed frame (2). The clamping mechanism (7) includes sliding grooves (801) respectively formed on the front inner wall and the back inner wall of the fixed frame (2). Slide rods (802) are respectively fixedly installed in the two sliding grooves (801). Sliding plates (803) are respectively slidably sleeved on the two slide rods (802). A T-shaped threaded rod (804) is threadedly installed through the sliding plate (803). A placement round plate (805) is rotatably installed at the top end of the T-shaped threaded rod (804).

9. A semi-automatic welding device for the production of the carriage board of an electric tricycle according to claim 8, characterized in that: A rectangular mounting plate (806) is fixedly installed on the right side of the mounting frame (1). An electric telescopic rod (807) is fixedly installed at the top of the rectangular mounting plate (806). A toothed plate (808) is fixedly installed at the output end of the electric telescopic rod (807). A gear (809) is fixedly sleeved on the rotating shaft II (4). The toothed plate (808) is meshed with the gear (809).

10. A method of using a semi-automatic welding device for producing the carriage board of an electric tricycle, which adopts a semi-automatic welding device for producing the carriage board of an electric tricycle as described in claim 9, characterized in that, The method steps are as follows: S1: Adjust the parallel position of the carriage plate: The rectangular frame (502) drives the L-shaped movable block (504) to descend. The L-shaped movable block (504) contacts the L-shaped hollow fixed plate (505). Under the action of its inclined plane, the L-shaped hollow fixed plate (505) moves towards the direction close to the carriage plate. The L-shaped hollow fixed plate (505) drives the triangular plate (508) to contact the carriage plate and make the center of the carriage plate parallel to the center of the placing circular plate (805). At this time, the limit spring (506) undergoes tensile deformation. If the carriage plate is thick, it is pushed by the L-shaped hollow fixed plate (505). If the carriage plate is thin, it is pushed by the triangular plate (508), so as to flexibly correct carriage plates with different thicknesses. S2: Adjust the center position of the carriage plate: The carriage plate adjusts its balance under the action of the inclined plane of the triangular block (511) and completely contacts the placing circular plate (805). During the descent of the carriage plate, the triangular block (511) descends correspondingly according to the length of different carriage plates, so as to better adjust the position of the carriage plate, making the center of the carriage plate coincide with the center of the placing circular plate (805) on the basis of the adjustment of the L-shaped hollow fixed plate (505). During the descent of the movable frame (701), it contacts and drives the adaptor plate (706) to descend. At this time, the adaptor spring (705) undergoes compressive deformation. When the movable frame (701) leaves the thread on the threaded rod (6021), the adaptor spring (705) makes the movable frame (701) stop moving under the action of its elastic force. S3: Flexibly adjust the position of the carriage plate: When the carriage plate is wide, the triangular plate (508) stops moving in a short time when it contacts the carriage plate. At this time, the strip plate (707) still descends continuously. During the process of the strip plate (707) driving the circular plate (709) to descend, the compression spring (710) undergoes a deeper compression, compressing the descending distance of the strip plate (707) onto the circular plate (709) and the compression spring (710). At this time, the rectangular frame (502) also stops moving according to the width of the carriage plate, so as to improve the clamping flexibility of the device for carriage plates with different widths. S4: Reduce welding fumes: During the movement of the sliding plate (803), it contacts the triangular plate (508). Since the triangular plate (508) is triangular, the sliding plate (803) makes the triangular plate (508) slide into the L-shaped hollow fixed plate (505) when it contacts the triangular plate (508), so that the sliding plate (803) can pass quickly, thus avoiding the phenomenon of jamming when the sliding plate (803) moves and affecting the welding work. During the rotation of the threaded rod (6021), it drives several fan blades (604) to rotate. The rotation of the fan blades (604) generates a suction force. The suction force inhales the fumes generated during welding into the air box (602) through the suction pipe (606), the through groove (607) and the suction holes (608), and discharges them to other places through the exhaust pipe (605), preventing excessive fumes from generating pores during welding and affecting the welding quality, and also avoiding the fumes from affecting the welding vision.

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