Pipe welding device for electric four-wheeler production

Abstract

The invention discloses an electric four-wheeler production pipe welding device which comprises a workbench, a supporting plate is arranged at the bottom of the workbench, connecting plates are arranged at the two ends of the supporting plate, the supporting plate is connected with the workbench through the connecting plates, a feeding mechanism is arranged at the bottom of the workbench, and a positioning mechanism is arranged on the supporting plate. The turnover mechanisms are arranged at the two ends of the positioning mechanism, the fixing mechanisms are arranged on the turnover mechanisms, the number of the fixing mechanisms is multiple, and the multiple fixing mechanisms are evenly distributed on the turnover mechanisms. The fixing mechanism comprises a first air cylinder, a lower pressing plate and a positioning plate. The multiple fixing mechanisms are arranged, multiple pipes can be clamped and fixed at the same time, the feeding mechanism is arranged, continuous feeding can be conducted, and therefore the purpose of continuous welding of the multiple pipes is achieved, and the welding efficiency is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipe welding, and particularly relates to a pipe welding device for the production of electric four-wheel vehicles. Background Art

[0002] An electric vehicle converts electrical energy into mechanical energy through components such as a controller and a motor, and is a vehicle that controls the speed by changing the magnitude of the current. Electric vehicles conform to the national regulations on energy conservation and environmental protection trends, greatly facilitating short-distance transportation. Most importantly, they play an important role in the national economy by saving and protecting energy and the environment. Before assembling an electric tricycle, it is necessary to weld the pipes used for assembling the electric tricycle to facilitate the assembly of the electric tricycle, and a pipe welding device for the production of electric tricycles is required.

[0003] After retrieval, a Chinese patent with the application number 202022717903.5 discloses a pipe welding device for the production of electric tricycles, including a support plate. A first electric slide rail is arranged on the top of the support plate, a connecting block is movably connected to the surface of the first electric slide rail, a screw rod is arranged on one side of the connecting block, a fixing frame is arranged on one side of the screw rod, rollers are arranged on the inner wall of the fixing frame, and a first electric slide table is arranged on the upper surface of the support plate. For this pipe welding device for the production of electric tricycles, a filter screen is provided. The harmful gases discharged into the treatment tank will float upward, and the harmful gases will pass through the filter screen during the upward floating process. The filter screen filters and processes the harmful gases. A fixing frame is provided. The welded pipes are placed in the fixing frame, and the clamping plates are inserted into the card slots to fix the pipes in the fixing frame. A grinding head is provided to grind and remove the corroded surface of the pipes. The pipe debris ground off falls into the collection box through the notch.

[0004] There are still deficiencies in the above application. When welding and processing pipes in the above application, only a single pipe can be clamped and fixed for welding and processing at a time. When welding and processing multiple pipes, it is necessary to repeatedly perform the clamping operation, and the clamping efficiency of multiple pipes is not high, affecting the overall welding and processing efficiency. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a pipe welding device for the production of electric four-wheel vehicles. The setting of several fixing mechanisms in this device can clamp and fix multiple pipes simultaneously, and the setting of the feeding mechanism can continuously feed materials, thereby achieving the purpose of continuously welding multiple pipes and greatly improving the welding efficiency.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is: A pipe welding device for the production of electric four-wheel vehicles, including a workbench. A support plate is arranged at the bottom of the workbench. Connecting plates are arranged at both ends of the support plate. The support plate is connected to the workbench through the connecting plates. A feeding mechanism is arranged at the bottom of the workbench. A positioning mechanism is arranged on the support plate. Turning mechanisms are arranged at both ends of the positioning mechanism. A fixing mechanism is arranged on the turning mechanism. There are several fixing mechanisms, and several fixing mechanisms are evenly distributed on the turning mechanism; The fixing mechanism includes a first cylinder, a lower pressing plate and a positioning plate. An inclined surface inclined upward is arranged on one side of the bottom of the positioning plate. The first cylinder is arranged on one side of the turning mechanism. The positioning plate is arranged on the piston rod of the first cylinder. The first cylinder drives the lower pressing plate to move downward, and then cooperates with the positioning mechanism to fix the pipe.

[0007] Preferably, an adjustment hole is opened in the middle of the lower pressing plate. A threaded rod is arranged in the adjustment hole. An internal hexagonal groove is opened at one end of the threaded rod. Both ends of the threaded rod are respectively rotatably installed at both ends of the adjustment hole. The positioning plate is slidably arranged in the adjustment hole and is threadedly connected with the threaded rod. The arrangement of the threaded rod can adjust the gap between the positioning plate and the turning mechanism, ensuring that the device can clamp and fix pipes of different thicknesses.

[0008] Preferably, a placing member for placing pipes is further arranged at the top of one end of the workbench. The placing member includes side plates, fixed seats, side rods installed at both ends of the side plates, a baffle arranged at the top of the side rods, and a stop block installed on the workbench. There are gaps for the pipes to pass between the baffle and the stop block and between the baffle and the side plates. The side plates are fixedly installed on the workbench. A guide rod is fixedly installed on the center line of one side of the side plates. Sliding rods are symmetrically arranged on both sides of the guide rod. The sliding rods are slidably matched with the side plates. The first push plate and the second push plate are respectively arranged at both ends of the sliding rods. The second push plate is slidably matched with the guide rod. A spring is sleeved on the guide rod. The other end of the guide rod is fixedly installed on the workbench through the fixed seat. The spring is located between the second push plate and the fixed seat. The placing member can prevent multiple pipes at the same time, facilitating the feeding mechanism to feed materials, thereby improving the efficiency of pipe welding. The arrangement of the spring can always provide power for the second push plate. The second push plate drives the sliding rod and the first push plate to move. The movement of the first push plate will push the pipe towards the side close to the stop block until the pipe contacts the stop block, facilitating the subsequent feeding mechanism to feed the pipe.

[0009] Preferably, the feeding mechanism includes a second cylinder, a moving plate, a lifting plate, a third cylinder, a lifting rod, a fourth cylinder and a rotating arm. A guide rail is fixedly installed at the bottom of the workbench. A guide groove is formed in the moving plate, and the guide groove is slidably engaged with the guide rail. The second cylinder is fixedly installed at the bottom of the workbench, and the piston rod of the second cylinder is fixedly connected to the moving plate. The lifting rods are symmetrically arranged at both ends of the lifting plate, and the lifting rods are slidably engaged with the moving plate. The third cylinder is arranged at the bottom of the moving plate, and the piston rod of the third cylinder is connected to the lifting plate. A vertical rod is fixedly installed at the top of the lifting rod. The fourth cylinder is installed on one side of the vertical rod. The rotating arms are symmetrically arranged on both sides of the vertical rod, and the rotating arms are rotatably connected to the vertical rod. A clamping plate is arranged at the end of the rotating arm. An adjusting bolt is arranged on the clamping plate. A strip-shaped hole is formed in the rotating arm. A fixed column is fixedly installed on the piston rod of the fourth cylinder. The fixed column is arranged in the strip-shaped hole, and the fixed column is slidably engaged with the strip-shaped hole. The setting of the feeding mechanism facilitates the feeding of the pipes to be welded, improving the efficiency of pipe welding. The second cylinder drives the moving plate to move to the bottom of the frontmost pipe, so that the vertical rod contacts the side wall of the frontmost pipe. The third cylinder drives the lifting rod to move upward until the top of the lifting rod contacts the bottom of the pipe. The fourth cylinder drives the rotating arm to rotate so that the clamping plate rotates to the top of the pipe. The clamping plate cooperates with the lifting rod to fix the pipe. The third cylinder is opened to drive the lifting rod to move upward until the pipe moves above the limit block. The moving plate moves to drive the pipe to move. After moving to the designated position, the third cylinder drives the lifting plate and the lifting rod to move downward, thereby driving the pipe to move downward until the bottom of the pipe contacts the workbench.

[0010] Preferably, the positioning mechanism includes a mounting plate, a motor, a push-pull rod, a pulling rod and a sliding frame. The mounting plate is arranged below the support plate. Fixed blocks are arranged at the bottoms of both ends of the mounting plate. Support plates are arranged at the bottoms of the fixed blocks. The motor is arranged on the support plate. The push-pull rod and the pulling rod are arranged between the mounting plate and the support plate. The middle of the push-pull rod is fixedly installed on the output shaft of the motor. The pulling rods are symmetrically arranged on both sides of the push-pull rod. The sliding frames are symmetrically arranged on both sides of the center line of the mounting plate. The two ends of the pulling rod are respectively rotatably connected to the end of the push-pull rod and the sliding frame. The positioning mechanism can drive the pipe on the flipping mechanism to approach the pipe on the feeding mechanism. Since the rotation of the push-pull rod can drive the pulling rod to move at the same time, the movement of the pulling rod will drive the sliding frame to move towards the workbench at the same time, and the pipe on the flipping mechanism on the sliding frame will move towards the middle synchronously. During the movement of the pipe, the purpose of positioning the pipe can be achieved, ensuring that the pipe on the flipping mechanism is located at both ends of the pipe on the workbench.

[0011] Preferably, the sliding frame includes an upper sliding plate, a lower sliding plate, and side sliding plates symmetrically arranged on both sides of the center line of the mounting plate. The side sliding plates are slidably engaged with the side walls of the mounting plate. The lower sliding plate is arranged between the support plate and the mounting plate, and the upper wall of the lower sliding plate is slidably engaged with the lower wall of the mounting plate. The turning mechanism is rotatably installed at both ends of the upper sliding plate. The setting of the sliding frame can drive the turning mechanism to move, and the movement of the turning mechanism drives the pipe to be welded to move, ensuring that the pipe on the turning mechanism can contact the end of the pipe on the feeding mechanism, so as to facilitate the welding of the pipe.

[0012] Preferably, the positioning mechanism further includes a sixth cylinder, guide rods symmetrically arranged on both sides of the support plate, and mounting blocks. The mounting blocks are symmetrically arranged on both sides of the support plate. There are two mounting blocks, one in front and one behind, on each side of the support plate. The two ends of the guide rod are respectively fixedly installed on the two mounting blocks arranged one in front and one behind on the same side. Moving blocks are arranged on both sides of the center line of the support plate on the mounting plate, and the moving blocks on the mounting plate are slidably engaged with the guide rods arranged on both sides of the support plate. The sixth cylinder is fixedly installed at the bottom of the support plate, and the piston rod of the sixth cylinder is fixedly connected to the mounting plate. The setting of the sixth cylinder can drive the mounting plate to move, so as to adjust the pipes at different positions on the turning mechanism to correspond to the pipes on the workbench, ensuring the welding efficiency of the pipes.

[0013] Preferably, the turning mechanism includes a turning plate and rotating rods installed on both sides of the center line of the turning plate. The rotating rods on both sides of the center line of the turning plate are respectively rotatably installed at both ends of the upper sliding plate. A plurality of guide grooves are formed on the top of the turning plate, and the plurality of guide grooves are respectively slidably engaged with the lower pressing plates on the plurality of fixing mechanisms. The setting of the turning mechanism facilitates the staff to load the pipes, improving the efficiency of pipe loading.

[0014] Preferably, a limiting mechanism is further provided on the rotating rods on both sides of the center line of the turning plate. The limiting mechanism includes a fixing plate, a fifth cylinder, a first limiting plate, a second limiting plate, a first limiting block and a second limiting block. Both ends of the fixing plate are fixedly installed on the rotating rods on both sides of the center line of the turning plate. An installation hole is opened in the middle of the fixing plate. A first rack, a second rack, a gear and an installation shaft are arranged in the installation hole. The gear is rotatably installed in the installation hole through the installation shaft. The first rack and the second rack are symmetrically arranged on the upper and lower sides of the gear, and both the first rack and the second rack are engaged with the gear. The first rack and the second rack respectively penetrate through the rotating rods on both sides of the turning plate and extend to the outside of the rotating rods. The first limiting plate is fixedly installed on the first rack, and the second limiting plate is fixedly installed on the second rack. The first limiting block and the second limiting block are respectively arranged on the first limiting plate and the second limiting plate. The fifth cylinder is fixedly installed on the fixing plate, and the piston rod of the fifth cylinder is connected to the first rack. The setting of the limiting mechanism can play the role of limiting the turning plate, ensuring that the turning plate is always in a stable state during the working process, and ensuring the welding efficiency and welding quality. The fifth cylinder drives the first rack to move, the first rack drives the gear to rotate, the gear drives the second rack to move, and the first rack and the second rack moving in opposite directions will drive the first limiting plate and the second limiting plate to move in opposite directions at the same time. The movement of the first limiting plate and the second limiting plate will drive the first limiting block and the second limiting block to move, so as to ensure that the first limiting block and the second limiting block can limit the rotating rod at the same time.

[0015] Preferably, through holes are opened in the rotating rods on both sides of the center line of the turning plate, and limiting grooves are opened at both ends of the lower sliding plate. The first limiting block and the second limiting block respectively penetrate through the through holes in the rotating rods on both sides of the center line of the turning plate and cooperate with the limiting grooves at both ends of the lower sliding plate. Slide rails are arranged on the inner walls on both sides of the center line of the installation hole. Sliding grooves are opened on both the first rack and the second rack. The sliding grooves on the first rack and the second rack are respectively in sliding cooperation with the slide rails arranged on the inner walls on both sides of the center line of the installation hole. The setting of the through holes, in cooperation with the first limiting block or the second limiting block and the limiting grooves, can play the role of limiting the rotating rod, ensuring that the rotating rod is always in a stable state during the working process. The setting of the slide rails can ensure the normal operation of the first rack and the second rack.

[0016] The beneficial effects of the present invention are as follows: 1). The setting of several fixing mechanisms of the present device can clamp and fix multiple pipes at the same time, and the setting of the feeding mechanism can continuously feed materials, so as to achieve the purpose of continuously welding multiple pipes, greatly improving the welding efficiency.

[0017] 2). The setting of the threaded rod of the present device can adjust the gap between the positioning plate and the turning mechanism, ensuring that the device can clamp and fix pipes with different thicknesses.

[0018] 3) The placing member of this device can prevent multiple pipes simultaneously, facilitating the feeding mechanism to feed materials, thereby improving the efficiency of pipe welding. The spring is arranged to always provide power for the second pushing plate. The second pushing plate drives the sliding rod and the first pushing plate to move. When the first pushing plate moves, it will push the pipe towards the side close to the stopper until the pipe contacts the stopper, facilitating the subsequent feeding of the pipe by the feeding mechanism.

[0019] 4) The feeding mechanism of this device is convenient for feeding the pipes to be welded, improving the efficiency of pipe welding. The second air cylinder drives the moving plate to move to the bottom of the frontmost pipe, making the vertical rod contact the side wall of the frontmost pipe. The third air cylinder drives the lifting rod to move upward until the top of the lifting rod contacts the bottom of the pipe. The fourth air cylinder drives the rotating arm to rotate, making the clamping plate rotate to the top of the pipe. The clamping plate cooperates with the lifting rod to fix the pipe. Then, the third air cylinder is opened to drive the lifting rod to move upward until the pipe moves above the limit block. The moving plate moves to drive the pipe to move. After moving to the designated position, the third air cylinder drives the lifting plate and the lifting rod to move downward, thereby driving the pipe to move downward until the bottom of the pipe contacts the workbench.

[0020] 5) The positioning mechanism of this device can drive the pipe on the flipping mechanism towards the pipe on the feeding mechanism. Since the push-pull rod rotates, it can drive the pulling rod to move simultaneously. When the pulling rod moves, it will drive the sliding frame to move towards the workbench at the same time, and the pipe on the flipping mechanism on the sliding frame also moves towards the middle synchronously. During the process of moving the pipe, the purpose of pipe positioning can be achieved, ensuring that the pipe on the flipping mechanism is located at both ends of the pipe on the workbench.

[0021] 6) The sliding frame of this device can drive the flipping mechanism to move. The flipping mechanism moves to drive the pipe to be welded to move, ensuring that the pipe on the flipping mechanism can contact the end of the pipe on the feeding mechanism, thereby facilitating the welding of the pipe.

[0022] 7) The sixth air cylinder of this device can drive the mounting plate to move, thereby adjusting the correspondence between the pipes at different positions on the flipping mechanism and the pipes on the workbench, ensuring the welding efficiency of the pipes.

[0023] 8) The flipping mechanism of this device includes a flipping plate and rotating rods installed on both sides of the center line of the flipping plate. The rotating rods on both sides of the center line of the flipping plate are respectively rotatably installed at both ends of the upper sliding plate. A number of guiding grooves are opened on the top of the flipping plate, and the number of the guiding grooves respectively slide cooperates with the lower pressing plates on the number of the fixing mechanisms. The setting of the flipping mechanism is convenient for the staff to feed the pipes, improving the efficiency of pipe feeding.

[0024] 9). The setting of the limit mechanism of this device can achieve the purpose of limiting the flipping plate, ensuring that the flipping plate remains in a stable state during operation, and guaranteeing the welding efficiency and quality. The fifth cylinder drives the first rack to move, the movement of the first rack drives the gear to rotate, the rotation of the gear drives the second rack to move, and the movement of the first rack and the second rack in opposite directions will simultaneously drive the first limit plate and the second limit plate to move in opposite directions. The movement of the first limit plate and the second limit plate will drive the first limit block and the second limit block to move, thus ensuring that the first limit block and the second limit block can simultaneously limit the rotating rod.

[0025] 10). The setting of the through hole of this device, in cooperation with the functions of the first limit block or the second limit block and the limit groove, can achieve the purpose of limiting the rotating rod, ensuring that the rotating rod remains in a stable state during operation. The setting of the slide rail can ensure the normal operation of the first rack and the second rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Attached Figure 1 is a schematic structural diagram of the present invention.

[0027] Attached Figure 2 is a bottom view of the present invention.

[0028] Attached Figure 3 is a schematic structural diagram of the placing member in the present invention.

[0029] Attached Figure 4 is the present invention Figure 3 magnified view at A.

[0030] Attached Figure 5 is a schematic structural diagram of the loading mechanism in the present invention.

[0031] Attached Figure 6 is a schematic structural diagram of the fixing mechanism in the present invention.

[0032] Attached Figure 7 is a schematic structural diagram of the flipping plate in the present invention.

[0033] Attached Figure 8 is a schematic installation structural diagram of the limit mechanism and the fixing mechanism in the present invention.

[0034] Attached Figure 9 is a schematic internal structural diagram of the limiting member in the present invention.

[0035] Attached Figure 10 is a schematic structural diagram of the limit mechanism in the present invention.

[0036] Attached Figure 11 is a schematic structural diagram of the positioning mechanism in the present invention.

[0037] Attached Figure 12It is a schematic structural diagram of the sliding frame in the present invention.

[0038] Appendix Figure 13 It is a schematic structural diagram of the sixth cylinder in the present invention.

[0039] In the figure: 1. Workbench; 2. Placing member; 201. Baffle; 202. Side rod; 203. Side plate; 204. Guide rod; 205. Spring; 206. Fixed seat; 207. Second push plate; 208. Sliding rod; 209. First push plate; 2010. Stopper; 3. Flipping mechanism; 301. Flipping plate; 302. Rotating rod; 303. Through hole; 304. Guide groove; 4. Loading mechanism; 401. Moving plate; 402. Adjusting bolt; 403. Clamping plate; 404. Rotating arm; 405. Strip hole; 406. Fixed column; 407. Fourth cylinder; 408. Lifting plate; 409. Lifting rod; 4010. Standing rod; 4011. Guide groove; 4012. Second cylinder; 4013. Guide rail; 4014. Third cylinder; 5. Fixing mechanism; 501. First cylinder; 502. Lower pressing plate; 503. Positioning plate; 504. Adjusting hole; 505. Threaded rod; 506. Inner hexagon groove; 6. Limiting mechanism; 601. Fifth cylinder; 602. Fixed plate; 603. Gear; 604. First rack; 605. First limiting plate; 606. First limiting block; 607. Chute; 608. Mounting shaft; 609. Second limiting block; 6010. Second limiting plate; 6011. Second rack; 6012. Slide rail; 6013. Mounting hole; 7. Positioning mechanism; 701. Motor; 702. Pulling rod; 703. Mounting plate; 704. Push-pull rod; 705. Sliding frame; 706. Fixed block; 707. Support plate; 708. Lower slide plate; 709. Limiting groove; 7010. Side slide plate; 7011. Upper slide plate; 7012. Sixth cylinder; 7013. Mounting block; 7014. Moving block; 7015. Guide rod; 8. Connecting plate; 9. Support plate. Detailed implementation manners

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0042] As Figure 1 , Figure 2 shown, a pipe welding device for the production of electric four-wheel vehicles includes a workbench 1. A support plate 9 is provided at the bottom of the workbench 1. Connecting plates 8 are provided at both ends of the support plate 9. The support plate 9 is connected to the workbench 1 through the connecting plates 8. A feeding mechanism 4 is provided at the bottom of the workbench 1. The feeding mechanism 4 is used to transport the pipes on the workbench 1 to a designated position for the staff to weld the pipes.

[0043] A positioning mechanism 7 is provided on the support plate 9. The setting of the positioning mechanism 7 can pull the pipes on both sides into contact with the two ends of the pipes fixed on the workbench 1 at the same time, ensuring the efficiency of pipe welding.

[0044] Turning mechanisms 3 are provided at both ends of the positioning mechanism 7, facilitating the staff to fix the pipes at multiple angles and improving the flexibility of the device.

[0045] A fixing mechanism 5 is provided on the turning mechanism 3. The setting of the fixing mechanism 5 can fix the pipes on the turning mechanism 3, ensuring that the pipes are always in a stable state during the welding process and improving the quality of pipe welding. A number of fixing mechanisms 5 are provided, and the number of fixing mechanisms 5 is evenly distributed on the turning mechanism 3. The number of fixing mechanisms 5 can fix a number of pipes, thus eliminating the need for frequent feeding and improving the welding efficiency of the pipes.

[0046] As Figure 6 shown, the fixing mechanism 5 includes a first cylinder 501, a lower pressing plate 502 and a positioning plate 503. An inclined surface that slopes upward is provided on one side of the bottom of the positioning plate 503. The first cylinder 501 is provided on one side of the turning mechanism 3, and the positioning plate 503 is provided on the piston rod of the first cylinder 501. The lower pressing plate 502 is driven to move downward by the first cylinder 501, and the pipes are fixed in cooperation with the action of the positioning mechanism 7.

[0047] In this embodiment, as Figure 6As shown, an adjustment hole 504 is formed in the middle of the lower pressing plate 502. A threaded rod 505 is arranged in the adjustment hole 504. The two ends of the threaded rod 505 are respectively rotatably installed at both ends of the adjustment hole 504. The positioning plate 503 is slidably arranged in the adjustment hole 504, and the positioning plate 503 is threadedly connected with the threaded rod 505. The arrangement of the threaded rod 505 can adjust the gap between the positioning plate 503 and the flipping mechanism 3, ensuring that the device can clamp and fix pipes of different thicknesses.

[0048] In this embodiment, an internal hexagonal groove 506 is formed at one end of the threaded rod 505. The setting of the internal hexagonal groove 506 facilitates the staff to turn the threaded rod 505. In order to facilitate the rotation of the threaded rod 505, a handle can also be arranged at the end of the threaded rod 505.

[0049] In this embodiment, as Figure 3 shown, a placing member 2 for placing pipes is further arranged at the top of one end of the workbench 1. The placing member 2 includes side plates 203, fixed seats 206, side rods 202 installed at both ends of the side plates 203, and stoppers 2010 installed on the workbench 1. The side plates 203 are fixedly installed on the workbench 1. A guide rod 204 is fixedly installed on the center line of one side of the side plates 203. Sliding rods 208 are symmetrically arranged on both sides of the guide rod 204. The sliding rods 208 are slidably matched with the side plates 203. The two ends of the sliding rods 208 are respectively provided with a first pushing plate 209 and a second pushing plate 207. The second pushing plate 207 is slidably matched with the guide rod 204. A spring 205 is sleeved on the guide rod 204. The other end of the guide rod 204 is fixedly installed on the workbench 1 through the fixed seat 206. The spring 205 is located between the second pushing plate 207 and the fixed seat 206. The placing member 2 can prevent multiple pipes at the same time, facilitating the feeding mechanism 4 to feed materials, thereby improving the efficiency of pipe welding. The setting of the spring 205 can always provide power for the second pushing plate 207. The second pushing plate 207 drives the sliding rod 208 and the first pushing plate 209 to move. When the first pushing plate 209 moves, it will push the pipe towards the side close to the stopper 2010 until the pipe contacts the stopper 2010, facilitating the subsequent feeding mechanism 4 to feed the pipe.

[0050] In this embodiment, as Figure 3 shown, it further includes a baffle 201 arranged at the top of the side rod 202. There are gaps for the pipe to pass between the baffle 201 and the stopper 2010, and between the baffle 201 and the side plate 203. The setting of the baffle 201 can prevent the pipe from falling off the top of the side rod 202, ensuring the safety and stability of the pipe during the placing process. Under the action of the spring 205, the frontmost pipe can always be pushed to the stopper 2010.

[0051] In this embodiment, as Figure 4 、Figure 5 As shown in the figure, the feeding mechanism 4 includes a second cylinder 4012, a moving plate 401, a lifting plate 408, a third cylinder 4014, a lifting rod 409, a fourth cylinder 407, and a rotating arm 404. The second cylinder 4012 is fixedly installed at the bottom of the workbench 1, and the piston rod of the second cylinder 4012 is fixedly connected to the moving plate 401. The lifting rods 409 are symmetrically arranged at both ends of the lifting plate 408, and the lifting rods 409 are slidably engaged with the moving plate 401. The third cylinder 4014 is arranged at the bottom of the moving plate 401, and the piston rod of the third cylinder 4014 is connected to the lifting plate 408. A vertical rod 4010 is fixedly installed at the top of the lifting rod 409. The fourth cylinder 407 is installed on one side of the vertical rod 4010. The rotating arms 404 are symmetrically arranged on both sides of the vertical rod 4010, and the rotating arms 404 are rotatably connected to the vertical rod 4010. A clamping plate 403 is arranged at the end of the rotating arm 404. An adjusting bolt 402 is arranged on the clamping plate 403. A strip-shaped hole 405 is formed in the rotating arm 404. A fixing column 406 is fixedly installed on the piston rod of the fourth cylinder 407. The fixing column 406 is arranged in the strip-shaped hole 405, and the fixing column 406 is slidably engaged with the strip-shaped hole 405.

[0052] The setting of the feeding mechanism 4 facilitates the feeding of the pipes to be welded, improving the efficiency of pipe welding. The second cylinder 4012 drives the moving plate 401 to move to the bottom of the frontmost pipe, so that the vertical rod 4010 contacts the side wall of the frontmost pipe. The third cylinder 4014 drives the lifting rod 409 to move upward until the top of the lifting rod 409 contacts the bottom of the pipe. The fourth cylinder 407 drives the rotating arm 404 to rotate so that the clamping plate 403 rotates to the top of the pipe. The clamping plate 403 cooperates with the lifting rod 409 to fix the pipe. The third cylinder 4014 is opened to drive the lifting rod 409 to move upward until the pipe moves above the limit block. The moving plate 401 moves to drive the pipe to move. After moving to the designated position, the third cylinder 4014 drives the lifting plate 408 and the lifting rod 409 to move downward, thereby driving the pipe to move downward until the bottom of the pipe contacts the workbench 1.

[0053] In this embodiment, a guide rail 4013 is fixedly installed at the bottom of the workbench 1. A guide groove 4011 is formed in the moving plate 401. The guide groove 4011 is slidably engaged with the guide rail 4013. The cooperation between the guide rail 4013 and the guide groove 4011 can, on the one hand, guide the moving plate 401, and on the other hand, support the moving plate 401 to ensure the normal operation of the moving plate 401.

[0054] In this embodiment, as Figure 11As shown in the figure, the positioning mechanism 7 includes a mounting plate 703, a motor 701, a push-pull rod 704, a pull rod 702, and a sliding frame 705. The mounting plate 703 is arranged below the support plate 9. Fixed blocks 706 are provided at the bottoms of both ends of the mounting plate 703. A support plate 707 is provided at the bottom of the fixed block 706. The motor 701 is arranged on the support plate 707. The push-pull rod 704 and the pull rod 702 are arranged between the mounting plate 703 and the support plate 707. The middle part of the push-pull rod 704 is fixedly installed on the output shaft of the motor 701. The pull rods 702 are symmetrically arranged on both sides of the push-pull rod 704. The sliding frames 705 are symmetrically arranged on both sides of the center line of the mounting plate 703. Both ends of the pull rod 702 are rotatably connected to the end of the push-pull rod 704 and the sliding frame 705 respectively.

[0055] The positioning mechanism 7 can drive the pipe on the flipping mechanism 3 to approach the pipe on the feeding mechanism 4. Since the rotation of the push-pull rod 704 can drive the pull rod 702 to move at the same time, the movement of the pull rod 702 will drive the sliding frame 705 to move towards the workbench 1 at the same time, and the pipe on the flipping mechanism 3 on the sliding frame 705 will move towards the middle synchronously. During the movement of the pipe, the purpose of positioning the pipe can be achieved, ensuring that the pipe on the flipping mechanism 3 is located at both ends of the pipe on the workbench 1.

[0056] In this embodiment, as Figure 12 shown, the sliding frame 705 includes an upper sliding plate 7011, a lower sliding plate 708, and side sliding plates 7010 symmetrically arranged on both sides of the center line of the mounting plate 703. The side sliding plates 7010 are slidably matched with the side walls of the mounting plate 703. The lower sliding plate 708 is arranged between the support plate 707 and the mounting plate 703, and the upper wall of the lower sliding plate 708 is slidably matched with the lower wall of the mounting plate 703. The flipping mechanism 3 is rotatably installed at both ends of the upper sliding plate 7011. The arrangement of the sliding frame 705 can drive the flipping mechanism 3 to move. The movement of the flipping mechanism 3 drives the pipe to be welded to move, ensuring that the pipe on the flipping mechanism 3 can contact the end of the pipe on the feeding mechanism 4, so as to facilitate the welding of the pipes.

[0057] In this embodiment, as Figure 11 、 Figure 13As shown, the positioning mechanism 7 further includes a sixth cylinder 7012, guide rods 7015 symmetrically arranged on both sides of the pallet 9, and mounting blocks 7013. The mounting blocks 7013 are symmetrically arranged on both sides of the pallet 9. There are two mounting blocks 7013, one in front and one behind, on each side of the pallet 9. The two ends of the guide rod 7015 are respectively fixedly installed on two mounting blocks 7013 arranged one in front and one behind on the same side. Moving blocks 7014 are arranged on both sides of the center line of the pallet 9 on the mounting plate 703. The moving blocks 7014 on the mounting plate 703 are respectively in sliding fit with the guide rods 7015 arranged on both sides of the pallet 9. The sixth cylinder 7012 is fixedly installed at the bottom of the pallet 9. The piston rod of the sixth cylinder 7012 is fixedly connected to the mounting plate 703. The setting of the sixth cylinder 7012 can drive the mounting plate 703 to move, so as to adjust the corresponding relationship between the pipes at different positions on the flipping mechanism 3 and the pipes on the workbench 1, and ensure the welding efficiency of the pipes.

[0058] In this embodiment, as Figure 7 shown, the flipping mechanism 3 includes a flipping plate 301 and rotating rods 302 installed on both sides of the center line of the flipping plate 301. The rotating rods 302 on both sides of the center line of the flipping plate 301 are respectively rotatably installed at both ends of the upper sliding plate 7011. A number of guide grooves 304 are formed at the top of the flipping plate 301. The number of the guide grooves 304 are respectively in sliding fit with the lower pressing plates 502 on the number of the fixing mechanisms 5. The setting of the flipping mechanism 3 facilitates the staff to load the pipes and improves the loading efficiency of the pipes.

[0059] In this embodiment, as Figure 8 、 Figure 9 、 Figure 10As shown in the figure, a limiting mechanism 6 is further provided on the rotating rods 302 on both sides of the center line of the flipping plate 301. The limiting mechanism 6 includes a fixing plate 602, a fifth cylinder 601, a first limiting plate 605, a second limiting plate 6010, a first limiting block 606, and a second limiting block 609. Both ends of the fixing plate 602 are fixedly installed on the rotating rods 302 on both sides of the center line of the flipping plate 301. An installation hole 6013 is formed in the middle of the fixing plate 602. A first rack 604, a second rack 6011, a gear 603, and an installation shaft 608 are arranged in the installation hole 6013. The gear 603 is rotatably installed in the installation hole 6013 through the installation shaft 608. The first rack 604 and the second rack 6011 are symmetrically arranged on the upper and lower sides of the gear 603, and both the first rack and the second rack 6011 are engaged with the gear 603. The first rack 604 and the second rack 6011 respectively penetrate through the rotating rods 302 on both sides of the flipping plate 301 and extend to the outside of the rotating rods 302. The first limiting plate 605 is fixedly installed on the first rack 604, and the second limiting plate 6010 is fixedly installed on the second rack 6011. The first limiting block 606 and the second limiting block 609 are respectively arranged on the first limiting plate 605 and the second limiting plate 6010. The fifth cylinder 601 is fixedly installed on the fixing plate 602, and the piston rod of the fifth cylinder 601 is connected to the first rack 604.

[0060] The setting of the limiting mechanism 6 can achieve the purpose of limiting the flipping plate 301, ensuring that the flipping plate 301 is always in a stable state during the working process, and ensuring the welding efficiency and welding quality. The fifth cylinder 601 drives the first rack 604 to move. The movement of the first rack 604 drives the gear 603 to rotate. The rotation of the gear 603 drives the second rack 6011 to move. The movement of the first rack 604 and the second rack 6011 in opposite directions will simultaneously drive the first limiting plate 605 and the second limiting plate 6010 to move in opposite directions. The movement of the first limiting plate 605 and the second limiting plate 6010 will drive the first limiting block 606 and the second limiting block 609 to move, thereby ensuring that the first limiting block 606 and the second limiting block 609 can simultaneously limit the rotating rod 302.

[0061] In this embodiment, as Figure 7 shown, through holes 303 are formed in the rotating rods 302 on both sides of the center line of the flipping plate 301. As Figure 12 shown, limiting grooves 709 are formed at both ends of the lower sliding plate 708. The first limiting block 606 and the second limiting block 609 respectively penetrate through the through holes 303 in the rotating rods 302 on both sides of the center line of the flipping plate 301 and cooperate with the limiting grooves 709 at both ends of the lower sliding plate 708. As Figure 7 shown, slide rails 6012 are arranged on the inner walls on both sides of the center line of the installation hole 6013. As Figure 10As shown, a slide groove 607 is provided on each of the first rack 604 and the second rack 6011. Figure 9 As shown, the sliding grooves 607 on the first rack 604 and the second rack 6011 are respectively slidably matched with the sliding rails 6012 arranged on the inner walls on both sides of the center line of the mounting hole 6013. The setting of the through hole 303 cooperates with the first limit block 606 or the second limit block 609 and the limit groove 709 to limit the rotating rod 302, ensuring that the rotating rod 302 is always in a stable state during operation. The setting of the sliding rails 6012 can ensure the normal operation of the first rack 604 and the second rack 6011.

[0062] When the welded pipe is unloaded, the motor 701 is turned on to drive the push-pull rod 704 to rotate. During the rotation of the push-pull rod 704, the pull rod 702 is pushed outward, and the pull rod 702 pushes the sliding frame 705 outward to move outward. The outward movement of the sliding frame 705 drives the flip plate 301 to move outward, and the outward movement of the flip plate 301 drives the fixing mechanism 5 to move outward. Since the vertical part of the positioning plate 503 on the fixing mechanism 5 contacts the inner wall of the pipe, the fixing mechanisms 5 on both sides of the mounting plate 703 move outward at the same time to cooperate with the positioning plate 503 to fix the welded pipe. The fourth cylinder 407 retracts the piston rod to drive the fixed column 406 downward. The downward movement of the fixed column 406 drives the rotating arm 404 and the clamping plate 403 to rotate around the hinge between the rotating arm 404 and the vertical rod 4010, until the top of the clamping plate 403 releases the restriction on the pipe. The sixth cylinder 7012 is turned on to drive the mounting plate 703 to move toward the side close to the placement piece 2, until the pipe is out of the range restricted by the lifting rod 409 and the clamping plate 403, and then the first cylinder 501 of the fixing mechanism 5 on the flip plates 301 on both sides of the mounting plate 703 for clamping the welded pipe is turned on to drive the lower pressing plate 502 to move upward, and the upward movement of the lower pressing plate 502 will drive the positioning plate 503 to move upward. Since the positioning plates 503 on both sides fix the welded pipe, the welded pipe will be driven to move upward at the same time during the upward movement of the positioning plates 503 until the pipe on the workbench 1 is higher than the clamping plate 403, and then the pipe is transported to the other side of the loading mechanism 4 by the action of the sixth cylinder 7012; Turn on the motor 701 to drive the push-pull rod 704 to rotate. The rotation of the push-pull rod 704 drives the pull rod 702 and the sliding frame 705 to move toward the side close to the workbench 1. When the sliding frame 705 moves toward the middle, it will contact the positioning plate 503 to restrict the welded pipe, thereby achieving the purpose of unloading the welded pipe.

[0063] The above content is only an example and illustration of the structure of the present invention. Those skilled in the art of this technology can make various modifications, supplements, or use similar methods to replace the specific embodiments described. As long as it does not deviate from the scope defined by the structure of the present invention, it shall fall within the protection scope of the present invention.

Claims

1. A pipe welding device for the production of electric four-wheel vehicles, comprising a workbench, a support plate is arranged at the bottom of the workbench, connecting plates are arranged at both ends of the support plate, and the support plate is connected to the workbench through the connecting plates, characterized in that, A feeding mechanism is arranged at the bottom of the workbench, a positioning mechanism is arranged on the pallet, turning mechanisms are arranged at both ends of the positioning mechanism, and a fixing mechanism is arranged on the turning mechanism. A plurality of the fixing mechanisms are provided, and the plurality of fixing mechanisms are evenly distributed on the turning mechanism; The fixing mechanism includes a first cylinder, a lower pressing plate and a positioning plate. An inclined surface inclined upward is arranged on one side of the bottom of the positioning plate. The first cylinder is arranged on one side of the turning mechanism, and the positioning plate is arranged on the piston rod of the first cylinder. The lower pressing plate is driven by the first cylinder to move downward, and the pipe is fixed by the cooperation of the positioning mechanism.

2. The pipe welding device for the production of electric four-wheel vehicles according to claim 1, characterized in that, An adjustment hole is opened in the middle of the lower pressing plate. A threaded rod is arranged in the adjustment hole. An internal hexagonal groove is opened at one end of the threaded rod. Both ends of the threaded rod are rotatably installed at both ends of the adjustment hole. The positioning plate is slidably arranged in the adjustment hole and is threadedly connected with the threaded rod.

3. A pipe welding device for the production of electric four-wheel vehicles according to claim 1, characterized in that, A placing member for placing the pipe is further arranged at the top of one end of the workbench. The placing member includes side plates, fixed seats, side rods installed at both ends of the side plates, a baffle arranged at the top of the side rods, and a stop block installed on the workbench. There are gaps for the pipe to pass between the baffle and the stop block and between the baffle and the side plates. The side plates are fixedly installed on the workbench. A guide rod is fixedly installed on the center line of one side of the side plates. Sliding rods are symmetrically arranged on both sides of the guide rod. The sliding rods are slidably matched with the side plates. First push plates and second push plates are respectively arranged at both ends of the sliding rods. The second push plate is slidably matched with the guide rod. A spring is sleeved on the guide rod. The other end of the guide rod is fixedly installed on the workbench through the fixed seat. The spring is located between the second push plate and the fixed seat.

4. The pipe welding device for the production of electric four-wheel vehicles according to claim 1, characterized in that, The feeding mechanism includes a second cylinder, a moving plate, a lifting plate, a third cylinder, a lifting rod, a fourth cylinder and a rotating arm. A guide rail is fixedly installed at the bottom of the workbench. A guide groove is opened in the moving plate. The guide groove is slidably matched with the guide rail. The second cylinder is fixedly installed at the bottom of the workbench, and the piston rod of the second cylinder is fixedly connected with the moving plate. The lifting rods are symmetrically arranged at both ends of the lifting plate and are slidably matched with the moving plate. The third cylinder is arranged at the bottom of the moving plate, and the piston rod of the third cylinder is connected with the lifting plate. A vertical rod is fixedly installed at the top of the lifting rod. The fourth cylinder is installed on one side of the vertical rod. The rotating arms are symmetrically arranged on both sides of the vertical rod and are rotatably connected with the vertical rod. A clamping plate is arranged at the end of the rotating arm. An adjustment bolt is arranged on the clamping plate. A strip-shaped hole is opened in the rotating arm. A fixed column is fixedly installed on the piston rod of the fourth cylinder. The fixed column is arranged in the strip-shaped hole and is slidably matched with the strip-shaped hole.

5. A pipe welding device for the production of electric four-wheelers according to claim 1, characterized in that, The positioning mechanism includes a mounting plate, a motor, a push-pull rod, a pull rod and a sliding frame. The mounting plate is arranged below the pallet. Fixed blocks are provided at the bottoms of both ends of the mounting plate, and support plates are provided at the bottoms of the fixed blocks. The motor is arranged on the support plate. The push-pull rod and the pull rod are arranged between the mounting plate and the support plate. The middle part of the push-pull rod is fixedly installed on the output shaft of the motor. The pull rods are symmetrically arranged on both sides of the push-pull rod. The sliding frames are symmetrically arranged on both sides of the center line of the mounting plate. Both ends of the pull rod are respectively rotationally connected to the end of the push-pull rod and the sliding frame.

6. The pipe welding device for the production of electric four-wheel vehicles according to claim 5, characterized in that, The sliding frame includes an upper sliding plate, a lower sliding plate and side sliding plates symmetrically arranged on both sides of the center line of the mounting plate. The side sliding plates are slidably matched with the side walls of the mounting plate. The lower sliding plate is arranged between the support plate and the mounting plate, and the upper wall of the lower sliding plate is slidably matched with the lower wall of the mounting plate. The flipping mechanism is rotationally installed at both ends of the upper sliding plate.

7. The pipe welding device for the production of electric four-wheel vehicles according to claim 6, characterized in that, The positioning mechanism further includes a sixth cylinder, guide rods symmetrically arranged on both sides of the pallet and mounting blocks. The mounting blocks are symmetrically arranged on both sides of the pallet. There are two mounting blocks, one in front and one behind, on each side of the pallet. Both ends of the guide rod are respectively fixedly installed on the two mounting blocks arranged one in front and one behind on the same side. Moving blocks are arranged on both sides of the center line of the pallet on the mounting plate. The moving blocks on the mounting plate are respectively slidably matched with the guide rods arranged on both sides of the pallet. The sixth cylinder is fixedly installed at the bottom of the pallet, and the piston rod of the sixth cylinder is fixedly connected to the mounting plate.

8. A pipe welding device for the production of electric four-wheelers according to claim 7, characterized in that, The flipping mechanism includes a flipping plate and rotating rods installed on both sides of the center line of the flipping plate. The rotating rods on both sides of the center line of the flipping plate are respectively rotationally installed at both ends of the upper sliding plate. A plurality of guide grooves are formed at the top of the flipping plate. The plurality of guide grooves are respectively slidably matched with the lower pressing plates on the plurality of fixing mechanisms.

9. A pipe welding device for the production of electric four-wheelers according to claim 8, characterized in that, A limiting mechanism is further arranged on the rotating rods on both sides of the center line of the flipping plate. The limiting mechanism includes a fixing plate, a fifth cylinder, a first limiting plate, a second limiting plate, a first limiting block and a second limiting block. Both ends of the fixing plate are fixedly installed on the rotating rods on both sides of the center line of the flipping plate. An installation hole is formed in the middle of the fixing plate. A first rack, a second rack, a gear and an installation shaft are arranged in the installation hole. The gear is rotationally installed in the installation hole through the installation shaft. The first rack and the second rack are symmetrically arranged on the upper and lower sides of the gear, and both the first rack and the second rack are meshed with the gear. The first rack and the second rack respectively penetrate through the rotating rods on both sides of the flipping plate and extend to the outside of the rotating rods. The first limiting plate is fixedly installed on the first rack, and the second limiting plate is fixedly installed on the second rack. The first limiting block and the second limiting block are respectively arranged on the first limiting plate and the second limiting plate. The fifth cylinder is fixedly installed on the fixing plate, and the piston rod of the fifth cylinder is connected to the first rack.

10. A pipe welding device for the production of electric four-wheel vehicles according to claim 9, characterized in that, Through holes are formed in the rotating rods on both sides of the center line of the flipping plate, and limiting grooves are formed at both ends of the lower sliding plate. The first limiting block and the second limiting block respectively penetrate through the through holes in the rotating rods on both sides of the center line of the flipping plate and are matched with the limiting grooves at both ends of the lower sliding plate. Slide rails are arranged on the inner walls on both sides of the center line of the mounting hole. Chute grooves are formed on both the first rack and the second rack. The chute grooves on the first rack and the second rack are respectively in sliding fit with the slide rails arranged on the inner walls on both sides of the center line of the mounting hole.

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