Welding device for unmanned aerial vehicle manufacturing

Abstract

The invention relates to the technical field of electric arc welding, in particular to an unmanned aerial vehicle manufacturing welding device which comprises a first gap conveying belt, a second gap conveying belt, a clamping structure, a lifting plate, a welding chamber, a window, an X-axis guide rail, a Y-axis guide rod and the like. The first gap conveying belt and the second gap conveying belt are in linear butt joint, conveying tracks of the first gap conveying belt and the second gap conveying belt are collinear, lifting plates are fixedly connected to the portions, on the two sides of the head end and the tail end of the second gap conveying belt, of the rack through bolts, and a plurality of clamping structures are evenly fixed to the conveying face of the second gap conveying belt in the conveying direction. According to the device, the inclined surfaces of the inclined blocks which are symmetrically distributed are matched with the springs, automatic centering clamping of the circuit board is achieved, the problem of displacement during welding of the unmanned aerial vehicle circuit board is solved, the distance between the clamping structures can adapt to circuit boards of different sizes, and the universality of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of arc welding, in particular to a welding device for unmanned aerial vehicle manufacturing. BACKGROUND

[0002] In the process of unmanned aerial vehicle manufacturing, the welding process is a key link to ensure the structural strength and electrical performance, and precise welding is required for precision components such as circuit boards and metal frames.

[0003] In the prior art, the clamping structure for positioning the circuit board mainly plays a fixing role, and manual tightening clamps or single plane clamping methods are mostly used. Manual tightening clamps rely on manual operation, which is not only inefficient, but also difficult to ensure the uniformity of the clamping force of different circuit boards, which may cause deformation of the thin and precise circuit board of the unmanned aerial vehicle due to uneven stress. Single plane clamping lacks automatic centering function, and the circuit board may be easily offset during transportation or welding, causing welding point deviation and affecting the electrical conductivity of the unmanned aerial vehicle circuit board, especially the welding quality of multi-pin circuit boards.

[0004] Therefore, in view of the special requirements of the welding process in unmanned aerial vehicle manufacturing, it is necessary to solve the problems of insufficient positioning accuracy and poor adaptability of the existing clamping structure. SUMMARY

[0005] In order to overcome the shortcomings of insufficient positioning accuracy and poor adaptability of the existing clamping structure in the welding process of unmanned aerial vehicle manufacturing, the purpose of the present application is to provide a welding device for unmanned aerial vehicle manufacturing.

[0006] A welding device for unmanned aerial vehicle manufacturing, comprising a first gap conveyor belt, a second gap conveyor belt, a clamping structure, a lifting plate, a welding chamber, a window, an X-axis guide rail, a Y-axis guide rod, a welding device and a slag suction device, the first gap conveyor belt and the second gap conveyor belt are linearly connected, and the two have the same conveying track, the lifting plate is fixedly connected to the two sides of the two ends of the second gap conveyor belt through bolts, a plurality of clamping structures are uniformly fixed on the conveying surface of the second gap conveyor belt along the conveying direction, the second gap conveyor belt penetrates the welding chamber horizontally, a transparent window is embedded on the front face of the welding chamber, an X-axis guide rail is fixedly connected to the inner top wall of the welding chamber through bolts, a Y-axis guide rod is slidably connected to the X-axis guide rail, a welding device is slidably connected to the Y-axis guide rod through a sliding seat, and a slag suction device is integrated on the welding device.

[0007] As an improvement of the above-mentioned scheme, the clamping structure comprises a mounting block, an inclined block, a top rod and a spring, the mounting block is fixedly connected to the conveying surface of the second gap conveyor belt through bolts, the spring is welded to the mounting block, the other end of the spring is welded to the inclined block, the top rod is integrally formed on the side of the inclined block close to the lifting plate, the clamping surface of the inclined block is an inclined surface, and the inclined surfaces of the inclined blocks of the two clamping structures are symmetrically distributed.

[0008] As the improvement of the above-mentioned scheme, the welding device comprises an electric push rod, a reduction motor and a welding gun, the cylinder body of the electric push rod is slidably connected with the Y-axis guide rod through a sliding base, the end of the telescopic shaft of the electric push rod is fixedly connected with a base through a bolt, the side of the base is provided with the reduction motor through a machine base, and the output shaft of the reduction motor is fixedly connected with the welding gun through a shaft coupling.

[0009] As the improvement of the above-mentioned scheme, the slag suction device comprises a slag collecting box, a slag suction box, a sealing door, an air pump, an extension sleeve and a pull rope, the side of the cylinder body of the electric push rod is fixedly connected with the slag collecting box through a bolt, the side of the base is fixedly connected with the slag suction box through a bolt, the bottom end of the slag collecting box is fixedly connected with the air pump through a bolt, the air outlet end of the air pump is in communication with the inside of the slag collecting box, the air inlet end of the air pump is fixedly connected with the extension sleeve, and the end, away from the air pump, of the extension sleeve is in communication with the slag suction box.

[0010] As the improvement of the above-mentioned scheme, the bottom of the slag collecting box is slidably connected with a drawer in the horizontal direction, the drawer is matched with the slag outlet of the slag collecting box, and the welding slag sucked by the air pump is guided to the drawer through the slag collecting box.

[0011] As the improvement of the above-mentioned scheme, the conveying surface of the first gap conveyor belt is uniformly fixedly connected with a plurality of push plates in the conveying direction.

[0012] As the improvement of the above-mentioned scheme, the inlet of the welding chamber is fixedly connected with an ion fan, and the air outlet of the ion fan faces the conveying surface of the second gap conveyor belt.

[0013] As the improvement of the above-mentioned scheme, the lifting plate is a U-shaped structure along the track of the second gap conveyor belt, and the two ends of the lifting plate are provided with arc-shaped guide slopes, and the top rod can slide into the supporting surface of the lifting plate along the guide slopes.

[0014] Beneficial effects are:

[0015] 1. The inclined surfaces of the symmetrically distributed inclined blocks are matched with springs to realize automatic centering and clamping of the circuit board, solve the displacement problem during welding of the precise components of the unmanned aerial vehicle, the spacing of the clamping structure can be adapted to circuit boards of different sizes, and the universality of the device is improved.

[0016] 2. The slag suction device is linked with the welding device, the slag suction is automatically started during welding, the backflow is prevented after welding, the drawer type slag collecting design is matched, efficient collection and cleaning of the welding slag are realized, and the influence of the welding slag residue on the performance of the unmanned aerial vehicle is avoided.

[0017] 3、The present application realizes two-dimensional movement of the welding gun through the X-axis guide rail and the Y-axis guide rod, the electric push rod and the speed reducer motor adjust the height and angle of the welding gun, can accurately adapt to complex welding track, ion fan pretreatment avoids static damage, further guarantees the welding quality.

[0018] 4、The present application can observe the welding process in real time through the window, is convenient for timely adjustment, linkage and coordination of each part, reduces manual intervention, reduces operation difficulty, and improves welding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the ion fan, the welding chamber and the window of the present application.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the first gap conveyor belt and the push plate of the present application.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the second gap conveyor belt, the clamping structure and the lifting plate of the present application.

[0023] Figure 5 It is an enlarged view of the second gap conveyor belt, the clamping structure and the lifting plate of the present application.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the mounting block, the inclined block and the ejector rod of the present application.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the X-axis guide rail, the Y-axis guide rod and the welding device of the present application.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the electric push rod, the speed reducer motor and the welding gun of the present application.

[0027] Figure 9 It is a sectional view of the slag collecting box and the slag suction box of the present application.

[0028] Label name in the figure: 1-first gap conveyor belt, 101-push plate, 2-second gap conveyor belt, 201-clamping structure, 2011-mounting block, 2012-inclined block, 2013-ejector rod, 2014-spring, 202-lifting plate, 3-ion fan, 4-welding chamber, 401-window, 5-X-axis guide rail, 6-Y-axis guide rod, 7-welding device, 701-electric push rod, 702-speed reducer motor, 703-welding gun, 8-slag collecting box, 801-drawer, 9-slag suction box, 901-sealing door, 10-air pump, 11-telescopic sleeve, 12-pull rope. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] Example: A welding device for manufacturing drones, such as Figures 1-9 As shown, it includes a first gap conveyor belt 1, a second gap conveyor belt 2, a clamping structure 201, a lifting plate 202, a welding chamber 4, a window 401, an X-axis guide rail 5, a Y-axis guide rod 6, a welding device 7 and a slag suction device. The first gap conveyor belt 1 and the second gap conveyor belt 2 are connected in a straight line, and the conveying trajectories of the two are collinear. The lifting plates 202 are fixedly connected to the two side frames at the head and tail ends of the second gap conveyor belt 2 by bolts. A plurality of clamping structures 201 are evenly fixed on the conveying surface of the second gap conveyor belt 2 along the conveying direction. The second gap conveyor belt 2 horizontally passes through the welding chamber 4. A transparent window 401 is embedded in the front of the welding chamber 4. The X-axis guide rail 5 is bolted to the top wall of the welding chamber 4. The Y-axis guide rod 6 is slidably connected to the X-axis guide rail 5. The Y-axis guide rod 6 is slidably connected to the welding device 7 through a slide seat. The welding device 7 is integrated with a slag suction device.

[0031] like Figures 5-6 As shown, the mounting block 2011 is fixed with bolts on the conveying surface of the second gap conveyor belt 2, and a spring 2014 is welded on the mounting block 2011. The other end of the spring 2014 is welded with a bevel 2012. The bevel 2012 is integrally formed with a push rod 2013 on the side close to the lifting plate 202. The clamping surface of the bevel 2012 is an inclined surface, and the inclined surfaces of the bevel 2012 of the clamping structures 201 on both sides are symmetrically distributed. In the clamping structure 201, the mounting block 2011 provides stable support for the overall structure, and the elastic force of the spring 2014 cooperates with the symmetrically inclined clamping surface of the bevel 2012 to realize automatic centering clamping of the circuit board, effectively ensuring the position stability of the circuit board during the welding process, avoiding welding deviation due to displacement, improving welding accuracy, and at the same time being adaptable to circuit boards of different sizes to enhance the versatility of the device.

[0032] like Figures 7-8 As shown, the cylinder of the electric push rod 701 is slidably connected to the Y-axis guide rod 6 through a slide seat, the telescopic shaft end of the electric push rod 701 is fixed with a base by bolts, and a reduction motor 702 is installed on the side of the base through the machine base. The output shaft of the reduction motor 702 is fixedly connected to the welding gun 703 through a coupling. The welding device 7 adjusts the vertical distance between the welding gun 703 and the circuit board through the electric push rod 701, and the reduction motor 702 drives the welding gun 703 to rotate and adjust the welding angle. Combined with the sliding cooperation of the X-axis guide rail 5 and the Y-axis guide rod 6, the welding gun 703 can flexibly adapt to the needs of different welding parts, improve the flexibility and accuracy of the welding operation, and ensure the welding quality.

[0033] like Figures 8-9As shown, the cylinder side of the electric push rod 701 is bolted with a slag collecting box 8, the base side is bolted with a slag suction box 9, the bottom end of the slag collecting box 8 is bolted with an air pump 10, the air outlet end of the air pump 10 is in communication with the inside of the slag collecting box 8, the air inlet end of the air pump 10 is fixedly connected with an expansion sleeve 11, and the end of the expansion sleeve 11 away from the air pump 10 is in communication with the slag suction box 9. A sealing door 901 is hinged at the suction inlet of the slag suction box 9 through a clockwork spring, one side of the sealing door 901 away from the hinge end is connected with a pull rope 12, and the end of the pull rope 12 away from the sealing door 901 is fixedly connected with the outer wall of the slag collecting box 8. The slag suction box 9 can efficiently suck the welding slag near the welding area, and the sealing door 901 realizes the automatic opening and closing of the suction inlet under the action of the pull rope 12 and the clockwork spring, and the air pump 10 provides the suction power.

[0034] As shown in Figures 8-9 , the bottom of the slag collecting box 8 is slidingly connected with a drawer 801 in the horizontal direction, the drawer 801 is matched with the slag outlet of the slag collecting box 8, and the welding slag sucked by the air pump 10 is guided to the inside of the drawer 801 through the slag collecting box 8, so that the operator can regularly draw out and clean the welding slag, the welding slag processing process is simplified, and the maintenance convenience of the device is improved.

[0035] As shown in Figure 3 , a plurality of push plates 101 are uniformly bolted on the conveying surface of the first gap conveying belt 1 in the conveying direction, which can push the circuit board to smoothly transition from the first gap conveying belt 1 to the second gap conveying belt 2 during the operation of the conveying belt, ensure the continuity of the circuit board conveying, avoid the circuit board staying at the butt joint, and improve the conveying efficiency.

[0036] As shown in Figure 2 , the ion fan 3 is bolted at the entrance of the welding chamber 4, and the air outlet of the ion fan 3 faces the conveying surface of the second gap conveying belt 2, which can effectively neutralize the static electricity on the surface of the circuit board and prevent the static electricity from damaging the sensitive electronic components of the unmanned aerial vehicle, providing reliable pretreatment for the circuit board before welding and ensuring the safety of the electronic components of the unmanned aerial vehicle.

[0037] As shown in Figures 4-5 , the lifting plate 202 is a U-shaped structure along the track of the second gap conveying belt 2, and the lifting plate 202 is provided with arc-shaped guide slopes at both ends, the top rod 2013 can slide into the supporting surface of the lifting plate 202 along the guide slope, so that the clamping structure 201 automatically realizes the loosening action when the circuit board is conveyed to the specified position, facilitating the smooth placement of the circuit board, and the clamping structure 201 can be completed after the circuit board is in place, ensuring the smooth connection of the circuit board conveying and clamping process.

[0038] Circuit board conveying and positioning clamping process conveying and docking: the unmanned aerial vehicle circuit board to be welded is conveyed to the docking position of the second gap conveying belt 2 through the first gap conveying belt 1, the push plate 101 moves with the first gap conveying belt 1, and the circuit board is pushed from the first gap conveying belt 1 to the clamping structure 201 between the second gap conveying belt 2. When the clamping structure 201 moves with the first gap conveying belt 1 to the first end of the second gap conveying belt 2, the top rod 2013 slides along the arc-shaped guide slope of the first end of the lifting plate 202 into the U-shaped support surface of the lifting plate 202, the lifting plate 202 applies an outward pushing force to the top rod 2013, the top rod 2013 drives the inclined block 2012 to move away from the first gap conveying belt 1, and the spring 2014 is stretched. When the clamping structure 201 moves away from the support surface of the first end of the lifting plate 202, the top rod 2013 loses support, the spring 2014 resets and pulls the inclined block 2012 to move towards the first gap conveying belt 1. The inclined surface of the inclined block 2012 applies a clamping force to the two sides of the circuit board. Since the inclined surfaces of the two inclined blocks 2012 are symmetrically distributed, the horizontal component of the clamping force pushes the circuit board to the center of the conveying, achieving clamping and center positioning of the circuit board.

[0039] Pre-welding pretreatment: before the circuit board enters the welding chamber 4 with the second gap conveying belt 2, the ion fan 3 starts to blow ion wind to the surface of the circuit board to neutralize the static electricity on the surface of the circuit board, avoiding damage to the electronic components of the unmanned aerial vehicle caused by static electricity.

[0040] Welding process: the X-axis guide rail 5 is fixedly installed at the end of the X-axis drive motor, the output shaft of the X-axis drive motor is rigidly connected with the transmission screw of the X-axis guide rail 5 through a shaft coupling, driving the Y-axis guide rod 6 to slide linearly along the X-axis direction; the Y-axis guide rod 6 is correspondingly installed at the end of the Y-axis drive motor, the output shaft of the Y-axis drive motor is connected with the transmission screw of the Y-axis guide rod 6 through a shaft coupling, driving the welding device to move along the Y-axis direction, realizing accurate positioning of the welding torch 703 on the horizontal plane through the linkage of X-axis and Y-axis, ensuring the alignment accuracy of the arc welding area and the welding point of the circuit board. According to the arc welding track of the circuit board, the extension shaft of the electric push rod 701 is elongated, pushing the base and the welding torch 703 to approach the circuit board, adjusting the vertical distance between the welding torch 703 and the welding point to the optimal range where the arc is stable. The speed reducer 702 starts, the output shaft of the speed reducer 702 drives the welding torch 703 to rotate around its own axis, adjusts the arc injection angle of the welding torch 703, and adapts to the welding requirements of different arrangement of welding points on the circuit board. After the welding torch 703 is powered on, a stable arc is generated, the high-temperature arc is used to melt the solder and the metal of the welding point, and the arc welding work of the unmanned aerial vehicle circuit board is completed. During the welding process, the arc shape and the molten pool state can be observed through the window to ensure the welding quality.

[0041] Welding slag processing process: When the telescopic shaft of the electric push rod 701 is extended, the slag suction box 9 moves downward with the base. Since the two ends of the pull rope 12 are respectively fixed to the slag collecting box 8 and the sealing door 901, the pull rope 12 is gradually tightened. The pull rope 12 pulls the sealing door 901 to rotate around the hinge point to overcome the elastic force of the spring, opening the suction port of the slag suction box 9. At the same time, the air pump 10 is started, and the welding slag generated by welding is sucked from the slag suction box 9 through the telescopic sleeve 11 (moving synchronously with the welding gun 703), transported to the slag collecting box 8 through the air pump 10, and finally falls into the drawer 801. After welding is completed, the telescopic shaft of the electric push rod 701 is shortened, the pull rope 12 is relaxed, and the sealing door 901 closes the suction port of the slag suction box 9 under the reset force of the spring to prevent the welding slag in the slag collecting box 8 from flowing back. The operator can regularly pull out the drawer 801 to clean the collected welding slag.

Claims

1. A welding device for manufacturing unmanned aerial vehicles, comprising a first gap conveyor belt (1) and a second gap conveyor belt (2), wherein the first gap conveyor belt (1) and the second gap conveyor belt (2) are connected in a straight line, and the conveying trajectories of the two are collinear, and the device is characterized in that: The invention also includes a clamping structure (201), a lifting plate (202), a welding chamber (4), a viewing window (401), an X-axis guide rail (5), a Y-axis guide rod (6), a welding device (7) and a slag suction device. The lifting plates (202) are fixedly connected to the frames on both sides of the head and tail ends of the second gap conveyor belt (2) by bolts. A plurality of clamping structures (201) are evenly fixed on the conveying surface of the second gap conveyor belt (2) along the conveying direction. The second gap conveyor belt (2) horizontally passes through the welding chamber (4). A transparent viewing window (401) is embedded in the front of the welding chamber (4). An X-axis guide rail (5) is fixed to the top wall of the welding chamber (4) by bolts. The X-axis guide rail (5) is slidably connected to the Y-axis guide rod (6). The Y-axis guide rod (6) is slidably connected to the welding device (7) via a slide seat. The welding device (7) is integrated with the slag suction device.

2. A welding device for manufacturing UAV according to claim 1, characterized in that: The clamping structure (201) comprises a mounting block (2011), an inclined block (2012), a push rod (2013) and a spring (2014); the mounting block (2011) is fixed to the conveying surface of the second gap conveyor belt (2) by bolts; the spring (2014) is welded to the mounting block (2011); the other end of the spring (2014) is welded to the inclined block (2012); the push rod (2013) is integrally formed on one side of the inclined block (2012) close to the lifting plate (202); the clamping surface of the inclined block (2012) is an inclined surface, and the inclined surfaces of the inclined blocks (2012) of the clamping structures (201) on both sides are symmetrically distributed.

3. A welding device for manufacturing UAV according to claim 2, characterized in that: The welding device (7) comprises an electric push rod (701), a reduction motor (702) and a welding gun (703); the cylinder of the electric push rod (701) is slidably connected to the Y-axis guide rod (6) via a slide seat; the end of the telescopic shaft of the electric push rod (701) is bolted to a base; the reduction motor (702) is mounted on the side of the base via a machine base; and the output shaft of the reduction motor (702) is fixedly connected to the welding gun (703) via a coupling.

4. A welding device for manufacturing UAV according to claim 3, characterized in that: The slag suction device comprises a slag collecting box (8), a slag suction box (9), a sealing door (901), an air pump (10), a telescopic sleeve (11) and a pull rope (12); the cylinder side of the electric push rod (701) is fixed with the slag collecting box (8) by bolts, the base side is fixed with the slag suction box (9) by bolts, the bottom end of the slag collecting box (8) is fixed with the air pump (10), the air outlet end of the air pump (10) is connected to the inside of the slag collecting box (8), the air inlet end of the air pump (10) is fixedly connected with the telescopic sleeve (11), the end of the telescopic sleeve (11) away from the air pump (10) is connected to the slag suction box (9), the suction port of the slag suction box (9) is hinged with the sealing door (901) through a spring spring, the side of the sealing door (901) away from the hinged end is connected with the pull rope (12), and the end of the pull rope (12) away from the sealing door (901) is fixedly connected to the outer wall of the slag collecting box (8).

5. A welding device for manufacturing UAV according to claim 4, characterized in that: The invention also includes a drawer (801), the bottom of the slag collecting box (8) is connected to the drawer (801) by sliding in a horizontal direction, the drawer (801) is adapted to the slag outlet of the slag collecting box (8), and the welding slag sucked by the air pump (10) is guided into the drawer (801) through the slag collecting box (8).

6. A welding device for manufacturing UAV according to claim 5, characterized in that: It also includes a push plate (101), and a plurality of push plates (101) are evenly bolted on the conveying surface of the first gap conveyor belt (1) along the conveying direction.

7. A welding device for manufacturing UAV according to claim 6, characterized in that: It also includes an ion blower (3), the ion blower (3) is bolted to the entrance of the welding chamber (4), and the air outlet of the ion blower (3) faces the conveying surface of the second gap conveyor belt (2).

8. A welding device for manufacturing UAV according to claim 7, characterized in that: The lifting plate (202) is a U-shaped structure along the track of the second gap conveyor belt (2), and arc-shaped guiding inclined surfaces are provided at both ends of the lifting plate (202), and the top rod (2013) can slide into the supporting surface of the lifting plate (202) along the guiding inclined surfaces.

Images