Gas shielded welding equipment for steel products

Abstract

The invention relates to the technical field of welding equipment, and discloses steel product gas shielded welding equipment which comprises a machining table, a continuous automatic welding mechanism, a synchronous filtering and dust collecting mechanism and a flow adjusting mechanism. Side plates are vertically and fixedly arranged on the two sides of the top of the machining table, and a top plate is fixedly arranged on the tops of the side plates. According to the gas shielded welding equipment for the steel products, constant-speed automatic welding of the workpieces is achieved through the constant-speed automatic welding mechanism, and the situation that the welding quality is affected due to unstable connection of weld joints of welding rods and the workpieces due to the uneven welding speed is avoided; when the constant-speed automatic welding mechanism operates, the synchronous filtering and dust collecting mechanism is driven to collect and treat smoke generated during welding, air pollution caused by the smoke is avoided, and when the synchronous filtering and dust collecting mechanism operates, the flow adjusting mechanism is driven to automatically adjust the flow of protective gas. And instability of a protective dielectric layer formed by protective gas when the welding speed is different is avoided, so that the protective effect on the weld joint is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a gas shielded welding equipment for steel products. Background Art

[0002] There are many types of welding machines, including single-point single-function, single-point dual-function, single-point multi-function, two-point, three-point, four-point and even six-point welding machines and four-corner welding machines. Different types of welding machines have different welding functions and work efficiency. Welding is the process of connecting metal parts using various fusible alloys. The melting point of solder is lower than that of the material being welded, so that the parts will be welded through the molecular contact on their surface without being melted. Welding machines are mainly divided into two types according to materials: plastic welding machines and metal welding machines. The technologies used are mainly: ultrasonic, high frequency, plasma, electric heating and rotary. Welding machines include fully automatic welding machines, ultrasonic welding machines and gas shielded welding machines. Gas shielded welding machines refer to welding methods protected by carbon dioxide or argon gas, which do not use welding rods but welding wires. Carbon dioxide welding has high efficiency, and argon shielded welding mainly welds materials such as aluminum, titanium and stainless steel.

[0003] Most of the existing gas shielded welding equipment requires manual hand-held welding guns for welding, but it is difficult to manually control the welding speed to keep it uniform and stable, which easily causes the protective medium layer to fluctuate due to different welding speeds, resulting in low welding quality, and harmful smoke and dust are generated during welding, affecting the health of personnel. Therefore, a gas shielded welding equipment for steel products is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problem that most existing gas shielded welding equipment requires manual hand-held welding guns for welding, but it is difficult to manually control the welding speed to keep it uniform and stable, which easily leads to fluctuations in the protective medium layer due to different welding speeds, low welding quality, and harmful smoke generated during welding, affecting the health of personnel. The present invention provides a gas shielded welding equipment for steel products.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A steel product gas shielded welding device comprises a processing table, a continuous automatic welding mechanism, a synchronous filtering and dust collecting mechanism and a flow regulating mechanism; Side plates are vertically and fixedly arranged on both sides of the top of the processing table, a top plate is fixedly arranged on the top of the side plate, the continuous automatic welding mechanism is arranged at the bottom of the top plate, the synchronous filtering dust suction mechanism is arranged at the bottom of the continuous automatic welding mechanism, the flow regulating mechanism is arranged at the inner bottom of the synchronous filtering dust suction mechanism, a pair of clamping blocks are movably arranged on both sides of the middle of the processing table, a workpiece is detachably arranged between the clamping blocks, a plurality of lifting rods are vertically arranged on the bottom edge of the processing table, and a base is fixedly arranged at the bottom of the lifting rods. When in use, the uniform speed automatic welding mechanism is used to realize uniform speed automatic welding of the workpiece, so as to avoid the uneven welding speed causing the welding rod and the workpiece to have an unstable connection at the weld seam affecting the welding quality, the uniform speed automatic welding mechanism drives the synchronous filtering dust suction mechanism to realize the collection and treatment of the smoke generated during welding, so as to avoid its pollution of the air, and the synchronous filtering dust suction mechanism drives the flow regulating mechanism to realize the automatic adjustment of the flow of the shielding gas, so as to avoid the instability of the protective medium layer formed by the shielding gas when the welding speed is different, thereby improving the protection effect at the weld seam.

[0006] Furthermore, the continuous automatic welding mechanism includes a telescopic cylinder, which is fixedly arranged at the top center of the top plate, the output end of the telescopic cylinder is vertically downward, the output end of the telescopic cylinder is movably connected to a movable rod, the bottom end of the movable rod is connected to a lifting plate, the two ends of the lifting plate are slidably connected to the inner side wall of the side plate, the lifting plate is vertically arranged with the side plate, and guide rods are arranged in parallel on both sides of the movable rod, the top end of the guide rod passes through the top plate and extends to the upper part of the top plate, and the bottom end of the guide rod is fixedly connected to the top of the lifting plate. When welding, the telescopic cylinder is started to make the movable rod move downward, and when the movable rod moves downward, it drives the lifting plate at its bottom to move downward along the guide rod.

[0007] Furthermore, a driving motor is fixedly provided at the top right side of the lifting plate, the output end of the driving motor is vertically provided to the side plate, the output end of the driving motor is connected to a reduction driving wheel, a threaded rod is provided to rotate between the two ends of the bottom of the lifting plate, a reduction driven wheel is provided on the outer side of the right end of the threaded rod, the reduction driven wheel is provided directly below the reduction driving wheel, a reduction transmission belt is provided in the sleeve meshing between the reduction driven wheel and the reduction driving wheel, and the diameter of the reduction driven wheel is larger than the reduction driving wheel. When the lifting plate moves downward, it drives the driving motor and the threaded rod to move downward, and stops when the lifting plate moves to the welding starting position, at which time the driving motor is started, so that the reduction driving wheel starts to rotate, and when the reduction driving wheel rotates, the reduction driven wheel is driven to rotate through the reduction transmission chain meshing therewith, so that the threaded rod starts to rotate.

[0008] Furthermore, the external thread of the threaded rod is connected with a movable block, the top of the movable block is slidably connected to the bottom of the lifting plate, the bottom of the lifting plate is fixedly provided with a rack, the inner left side of the movable block is provided with a driving gear for rotation, the driving gear is meshed with the rack, the front side wall center of the driving gear is fixedly provided with a first driving wheel, the right side of the first driving wheel is provided with a first driven wheel for rotation, the first driving wheel and the first driven wheel are meshed with a first transmission chain, the right side of the first driven wheel is provided with a second driven wheel for rotation, the first driven wheel and the second driven wheel are meshed with a cross transmission chain, the lower sides of the first driven wheel and the second driven wheel are both provided with a rotating A third driven wheel is provided, and a second transmission chain is connected and meshed between the first driven wheel and the second driven wheel and the adjacent third driven wheel. Friction wheels are provided on the rear sides of the first driven wheel, the second driven wheel and the third driven wheel, and a welding wire is movably provided between the friction wheels facing each other. A welding cylinder is fixedly provided on the right side of the bottom of the movable block, and a welding head is rotatably provided on the bottom of the welding cylinder. A power supply is provided at the bottom of the processing table, and the power supply is electrically connected to the welding wire and the workpiece respectively. A weld is provided on the surface of the workpiece, and the weld is provided in parallel with the threaded rod. The welding head is provided directly above the weld, and the bottom end of the welding wire extends through the welding cylinder to the outside of the bottom of the welding head. When the threaded rod rotates, the movable block threadedly connected thereto starts to move to the left, so that the welding tube and the welding head at the bottom thereof move accordingly, and the power supply is started, so that the circuit between the welding wire and the workpiece is connected, and the welding wire is melted under the action of high temperature, and the weld on the surface of the workpiece is welded. At this time, the driving gear and the rack inside the movable block produce relative movement, so that the driving gear starts to rotate clockwise, and when the driving gear rotates, it drives the first driving wheel to start rotating, and when the first driving wheel rotates, it drives the first driven wheel to start rotating through the first transmission chain meshing therewith, and when the first driven wheel rotates, it drives the second driven wheel on the right side to rotate in the opposite direction through the cross transmission chain meshing therewith, and when the first driven wheel and the second driven wheel rotate, they drive a pair of third driven wheels at the bottom to start rotating toward each other through the second transmission chain meshing therewith, so that the friction wheels arranged opposite to each other start to rotate toward each other, and when the friction wheel rotates, the welding wire inside it is driven to move downward at a uniform speed under the action of friction force, so as to realize the uniform speed automatic welding of the workpiece, and avoid the uneven welding speed causing the unstable connection between the welding rod and the weld of the workpiece to affect the welding quality.

[0009] Further, the synchronous filtering dust collection mechanism includes a fourth driven wheel, the fourth driven wheel is rotatably arranged at the lower side of the first driving wheel, the diameter of the fourth driven wheel is smaller than the first driving wheel, a third transmission chain is meshedly connected between the first driving wheel and the fourth driven wheel, a driving bevel gear is arranged at the rear side of the fourth driven wheel, a driven bevel gear is meshed at the bottom of the driving bevel gear, the diameter of the driving bevel gear is larger than the driven bevel gear, a transmission shaft is fixedly arranged at the bottom of the driven bevel gear, and the transmission shaft is arranged vertically with the lifting plate. When the first driving wheel rotates, the fourth driven wheel is driven to start rotating through the third transmission chain meshed therewith, so that the driving bevel gear starts rotating, and when the driving bevel gear rotates, the driven bevel gear meshed at its bottom is driven to start rotating, so that the transmission shaft starts rotating.

[0010] Furthermore, a dust hood is fixedly provided on the outer wall of the welding tube, the bottom end of the transmission shaft passes through the dust hood and extends to the inside of the dust hood, an outer gear is provided around the upper part of the outer wall of the welding head, a transmission gear is connected to the bottom end of the transmission shaft, the transmission gear is meshed with the outer gear, and a plurality of blades are evenly provided in the middle of the outer wall of the welding head. When the transmission shaft rotates, the transmission gear at the bottom thereof starts to rotate, and when the transmission gear rotates, the outer gear meshed with the transmission gear starts to rotate, and when the outer gear rotates, the welding head at the bottom thereof starts to rotate, and when the welding head rotates, the blades on the outer wall start to rotate, thereby generating suction, and sucking the smoke generated during welding into the inside of the dust hood.

[0011] Furthermore, a filter is fixedly provided at the lower inner part of the dust hood, a scraper is provided at the bottom of the outer wall of the welding head, the length of the scraper matches the radius of the filter, a dust collecting groove is fixedly provided at the bottom of the scraper, and the opening of the dust collecting groove is provided at the front side of the rotation direction of the scraper. After the smoke enters the dust hood, it first passes through the filter to filter the dust in the smoke, and the filtered smoke condenses at the bottom of the filter. When the welding head rotates, it drives the scraper on its outer wall to start rotating. When the scraper rotates, the smoke at the bottom of the filter is collected and falls into the dust collecting groove at the bottom of the scraper, thereby realizing the collection and treatment of the smoke generated during welding to prevent it from polluting the air.

[0012] Furthermore, the flow regulating mechanism includes an inner ring, which is fixedly arranged on the upper part of the inner side wall of the welding head, and a plurality of slide grooves are evenly opened on the upper surface of the inner ring, and the slide grooves are arranged toward the center of the inner ring, and a slider is slidably arranged inside the slide groove, and a connecting rod is vertically arranged on the top of the slider. When the welding head rotates, the inner ring inside it is driven to start rotating, and the inner ring generates centrifugal force when it rotates, so that the slider moves toward the outer end of the slide groove, and when the slider moves, it drives the connecting rod to start moving.

[0013] Furthermore, an arc-shaped baffle is fixedly arranged on one side of the connecting rod facing the center of the inner ring, and the arc-shaped baffle is arranged on the upper part of the inner ring, and a spring is connected between the slider and the outer end of the slide groove. When the connecting rod moves, the arc-shaped baffle is driven to move in the direction of the inner ring, so that the flow area between the inner ring and the inner cylinder is increased, and at this time the spring is compressed to generate elastic force in the opposite direction.

[0014] Furthermore, an inner cylinder is fixedly provided at the center of the welding cylinder, the welding wire passes through the inner cylinder and extends to the bottom of the welding head, an inner flow cavity is formed between the inner cylinder and the welding cylinder, an air inlet pipe is connected to the outer wall pipeline of the inner flow cavity, a high-pressure pump is fixedly provided on the top of the dust collecting hood, and the input end of the air inlet pipe is connected to the high-pressure pump pipeline. When welding, the high-pressure pump is started, and protective gas is introduced into the inner flow cavity through the air inlet pipe. When the welding speed needs to be increased, the movement speed of the movable block is accelerated. At this time, the faster the rotation speed of the welding head is, the greater the opening amplitude of the arc-shaped baffle is, so that the flow rate of the protective gas is larger, thereby realizing automatic adjustment of the protective gas flow rate, avoiding the instability of the protective medium layer formed by the protective gas when the welding speed is different, thereby improving the protection effect on the weld.

[0015] Beneficial effects of the present invention: 1. The gas shielded welding equipment for steel products of the present invention realizes uniform-speed automatic welding of workpieces through a uniform-speed automatic welding mechanism when in use, so as to avoid uneven welding speed leading to unstable connection between the welding rod and the workpiece at the weld, which affects the welding quality. When the uniform-speed automatic welding mechanism is in operation, it drives the synchronous filtering and dust suction mechanism to collect and process the smoke generated during welding, so as to avoid air pollution. When the synchronous filtering and dust suction mechanism is in operation, it drives the flow regulating mechanism to realize automatic regulation of the flow of the shielding gas, so as to avoid instability of the protective medium layer formed by the shielding gas when the welding speed is different, thereby improving the protection effect on the weld.

[0016] 2. The gas shielded welding equipment for steel products of the present invention is provided with a continuous automatic welding mechanism. When the first driven wheel and the second driven wheel rotate, a pair of third driven wheels at the bottom can be driven to rotate toward each other through the second transmission chain meshing therewith, thereby causing the friction wheels arranged opposite to each other to rotate toward each other. When the friction wheels rotate, the welding wire inside them is driven to move downward at a uniform speed under the action of friction force, thereby realizing uniform speed automatic welding of the workpiece, avoiding uneven welding speed that causes unstable connection between the welding rod and the weld of the workpiece, affecting the welding quality.

[0017] 3. The gas shielded welding equipment for steel products of the present invention is provided with a synchronous filtering and dust suction mechanism. After the smoke enters the interior of the dust collecting hood, the smoke first passes through the filter to filter the dust in the smoke. The filtered smoke condenses at the bottom of the filter. When the welding head rotates, it drives the scraper on its outer wall to start rotating. When the scraper rotates, the smoke at the bottom of the filter is collected and falls into the dust collecting groove at the bottom of the scraper, thereby realizing the collection and treatment of the smoke generated during welding to avoid air pollution.

[0018] 4. The gas shielded welding equipment for steel products of the present invention is provided with a flow regulating mechanism, which can start the high-pressure pump during welding and introduce shielding gas into the inner flow cavity through the air inlet pipe. When the welding speed needs to be increased, the movement speed of the movable block is accelerated. At this time, the faster the rotation speed of the welding head is, the greater the opening amplitude of the arc-shaped baffle is, so that the flow rate of the shielding gas is larger, thereby realizing automatic adjustment of the shielding gas flow rate, avoiding the instability of the protective medium layer formed by the shielding gas when the welding speed is different, thereby improving the protection effect on the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structural diagram of the gas shielded welding equipment for Bengang products; Figure 2 This is a schematic diagram of the internal structure of the movable block of the gas shielded welding equipment of this steel product; Figure 3 This is a schematic diagram of the internal structure of the welding tube of the gas shielded welding equipment of this steel product; Figure 4 It is a schematic diagram of the top view structure of the inner sleeve ring of the gas shielded welding equipment for steel products.

[0020] Explanation of the reference numerals: 1. Processing table; 2. Side plate; 3. Lifting rod; 4. Telescopic cylinder; 5. Lifting plate; 6. Guide rod; 7. Driving motor; 8. Threaded rod; 9. Speed ​​reduction driving wheel; 10. Speed ​​reduction driven wheel; 11. Rack; 12. Movable block; 13. Welding cylinder; 14. Dust hood; 15. Workpiece; 16. Clamping block; 17. Power supply; 18. Driving gear; 19. First driving wheel; 20. First driven wheel; 21. Second driven wheel; 22. First transmission chain; 23. Cross transmission chain; 24. Welding wire ; 25. Second transmission chain; 26. Third driven wheel; 27. Friction wheel; 28. Third transmission chain; 29. ​​Fourth driven wheel; 30. Driving bevel gear; 31. Driven bevel gear; 32. Transmission shaft; 33. Transmission gear; 34. Inner cylinder; 36. Outer gear; 37. Blade; 38. Filter; 39. Scraper; 40. Dust collecting trough; 41. Welding head; 42. Inner sleeve; 43. Slide; 44. Slider; 45. Connecting rod; 46. Spring; 47. Arc baffle; 48. High-pressure pump; 49. Intake pipe. DETAILED DESCRIPTION

[0021] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0022] like Figure 1-4 As shown, a gas shielded welding device for steel products comprises a processing table 1, a continuous automatic welding mechanism, a synchronous filtering and dust collection mechanism, and a flow regulating mechanism; Side panels 2 are vertically and fixedly provided on both sides of the top of the processing table 1, a top plate is fixedly provided on the top of the side panels 2, the continuous automatic welding mechanism is provided at the bottom of the top plate, the synchronous filtering and dust suction mechanism is provided at the bottom of the continuous automatic welding mechanism, the flow regulating mechanism is provided at the inner bottom of the synchronous filtering and dust suction mechanism, a pair of clamping blocks 16 are movably provided on both sides of the middle part of the processing table 1, a workpiece 15 is detachably provided between the clamping blocks 16, a plurality of lifting rods 3 are vertically provided on the bottom edge of the processing table 1, and a base is fixedly provided at the bottom of the lifting rods 3. During use, the uniform speed automatic welding mechanism is used to achieve uniform speed automatic welding of the workpiece 15, so as to avoid uneven welding speed causing unstable connection between the welding rod and the workpiece 15 at the weld, which affects the welding quality. When the uniform speed automatic welding mechanism is in operation, it drives the synchronous filtering and dust suction mechanism to collect and process the smoke generated during welding, so as to avoid air pollution. When the synchronous filtering and dust suction mechanism is in operation, it drives the flow regulating mechanism to automatically adjust the flow of the shielding gas, so as to avoid unstable protective medium layer formed by the shielding gas when the welding speed is different, thereby improving the protection effect on the weld.

[0023] The continuous automatic welding mechanism includes a telescopic cylinder 4, which is fixedly arranged at the top center of the top plate, and the output end of the telescopic cylinder 4 is vertically downward, and the output end of the telescopic cylinder 4 is movably connected to a movable rod, and the bottom end of the movable rod is connected to a lifting plate 5, and the two ends of the lifting plate 5 are slidably connected to the inner wall of the side plate 2, and the lifting plate 5 is vertically arranged with the side plate 2. Guide rods 6 are arranged in parallel on both sides of the movable rod, and the top end of the guide rod 6 passes through the top plate and extends to the upper part of the top plate, and the bottom end of the guide rod 6 is fixedly connected to the top of the lifting plate 5. When welding, the telescopic cylinder 4 is started to make the movable rod move downward, and when the movable rod moves downward, it drives the lifting plate 5 at its bottom to move downward along the guide rod 6.

[0024] A driving motor 7 is fixedly arranged at the top right side of the lifting plate 5, and the output end of the driving motor 7 is arranged vertically with the side plate 2. The output end of the driving motor 7 is connected to a reduction driving wheel 9. A threaded rod 8 is arranged to rotate between the two ends of the bottom of the lifting plate 5. A reduction driven wheel 10 is arranged on the outer side of the right end of the threaded rod 8. The reduction driven wheel 10 is arranged directly below the reduction driving wheel 9. A reduction transmission belt is provided in the sleeve meshing between the reduction driven wheel 10 and the reduction driving wheel 9. The diameter of the reduction driven wheel 10 is larger than the reduction driving wheel 9. When the lifting plate 5 moves downward, the driving motor 7 and the threaded rod 8 are driven to move downward. When the lifting plate 5 moves to the welding starting position, it stops. At this time, the driving motor 7 is started, so that the reduction driving wheel 9 starts to rotate. When the reduction driving wheel 9 rotates, the reduction driven wheel 10 is driven to rotate through the reduction transmission chain meshed therewith, so that the threaded rod 8 starts to rotate.

[0025] The outer thread of the threaded rod 8 is connected with a movable block 12, the top of the movable block 12 is slidably connected with the bottom of the lifting plate 5, the bottom of the lifting plate 5 is fixedly provided with a rack 11, the inner left side of the movable block 12 is provided with a driving gear 18 for rotation, the driving gear 18 is meshed with the rack 11, the front side wall center of the driving gear 18 is fixedly provided with a first driving wheel 19, the right side of the first driving wheel 19 is provided with a first driven wheel 20 for rotation, the first driving wheel 19 and the first driven wheel 20 are meshed with a first transmission chain 22, the right side of the first driven wheel 20 is provided with a second driven wheel 21 for rotation, the first driven wheel 20 and the second driven wheel 21 are meshed with a cross transmission chain 23, the lower sides of the first driven wheel 20 and the second driven wheel 21 are both provided with a third driven wheel 21 for rotation. A driven wheel 26, a second transmission chain 25 is connected and meshed between the first driven wheel 20 and the second driven wheel 21 and the adjacent third driven wheel 26, friction wheels 27 are arranged on the rear sides of the first driven wheel 20, the second driven wheel 21 and the third driven wheel 26, a welding wire 24 is movably arranged between the friction wheels 27 facing each other, a welding cylinder 13 is fixedly arranged on the right side of the bottom of the movable block 12, a welding head 41 is rotatably arranged at the bottom of the welding cylinder 13, a power supply 17 is arranged at the bottom of the processing table 1, the power supply 17 is electrically connected to the welding wire 24 and the workpiece 15 respectively, a weld is arranged on the surface of the workpiece 15, the weld is arranged parallel to the threaded rod 8, the welding head 41 is arranged directly above the weld, and the bottom end of the welding wire 24 passes through the welding cylinder 13 and extends to the outside of the bottom of the welding head 41. When the threaded rod 8 rotates, it drives the movable block 12 threadedly connected thereto to start moving to the left, so that the welding tube 13 and the welding head 41 at the bottom thereof move accordingly, and the power supply 17 is started, so that the circuit between the welding wire 24 and the workpiece 15 is connected, and the welding wire 24 is melted under the action of high temperature, and the weld seam on the surface of the workpiece 15 is welded. At this time, the driving gear 18 inside the movable block 12 and the rack 11 produce relative movement, so that the driving gear 18 starts to rotate clockwise, and when the driving gear 18 rotates, it drives the first driving wheel 19 to start rotating, and when the first driving wheel 19 rotates, it drives the first driven wheel 20 through the first transmission chain 22 meshing therewith. When the first driven wheel 20 and the second driven wheel 21 rotate, they drive the second driven wheel 21 on the right side to rotate in the opposite direction through the cross transmission chain 23 meshing with them. When the first driven wheel 20 and the second driven wheel 21 rotate, they drive the pair of third driven wheels 26 at the bottom to rotate toward each other through the second transmission chain 25 meshing with them, so that the friction wheels 27 arranged opposite to each other start to rotate toward each other. When the friction wheel 27 rotates, the welding wire 24 on the inside thereof is driven to move downward at a uniform speed under the action of friction force, thereby realizing uniform speed automatic welding of the workpiece 15, avoiding uneven welding speed that causes unstable connection between the welding rod and the weld of the workpiece 15, affecting the welding quality.

[0026] The synchronous filtering dust collection mechanism includes a fourth driven wheel 29, which is rotatably arranged at the lower side of the first driving wheel 19, and the diameter of the fourth driven wheel 29 is smaller than that of the first driving wheel 19. A third transmission chain 28 is meshed between the first driving wheel 19 and the fourth driven wheel 29, and a driving bevel gear 30 is arranged at the rear side of the fourth driven wheel 29, and a driven bevel gear 31 is meshed at the bottom of the driving bevel gear 30, and the diameter of the driving bevel gear 30 is larger than that of the driven bevel gear 31. A transmission shaft 32 is fixedly arranged at the bottom of the driven bevel gear 31, and the transmission shaft 32 is arranged vertically with the lifting plate 5. When the first driving wheel 19 rotates, the fourth driven wheel 29 is driven to start rotating through the third transmission chain 28 meshed therewith, so that the driving bevel gear 30 starts rotating, and when the driving bevel gear 30 rotates, the driven bevel gear 31 meshed at the bottom thereof is driven to start rotating, so that the transmission shaft 32 starts rotating.

[0027] The outer wall of the welding tube 13 is fixedly provided with a dust hood 14, the bottom end of the transmission shaft 32 passes through the dust hood 14 and extends to the inside of the dust hood 14, the upper part of the outer wall of the welding head 41 is surrounded by an external gear 36, the bottom end of the transmission shaft 32 is connected to a transmission gear 33, the transmission gear 33 is meshed and connected with the external gear 36, and a plurality of blades 37 are evenly provided in the middle of the outer wall of the welding head 41. When the transmission shaft 32 rotates, the transmission gear 33 at the bottom thereof is driven to start rotating, and when the transmission gear 33 rotates, the external gear 36 meshed therewith is driven to start rotating, and when the external gear 36 rotates, the welding head 41 at the bottom thereof is driven to start rotating, and when the welding head 41 rotates, the blades 37 at the outer wall thereof are driven to start rotating, thereby generating suction force, and sucking the fume generated during welding into the inside of the dust hood 14.

[0028] A filter 38 is fixedly provided at the lower inner part of the dust hood 14, a scraper 39 is provided at the bottom of the outer wall of the welding head 41, the length of the scraper 39 matches the radius of the filter 38, a dust collecting groove 40 is fixedly provided at the bottom of the scraper 39, and the opening of the dust collecting groove 40 is provided at the front side of the rotation direction of the scraper 39. After the smoke enters the dust hood 14, it first passes through the filter 38 to filter the dust in the smoke, and the filtered smoke condenses at the bottom of the filter 38. When the welding head 41 rotates, it drives the scraper 39 on its outer wall to start rotating. When the scraper 39 rotates, the smoke at the bottom of the filter 38 is collected and collected, so that it falls into the dust collecting groove 40 at the bottom of the scraper 39, thereby realizing the collection and treatment of the smoke generated during welding to prevent it from polluting the air.

[0029] The flow regulating mechanism includes an inner ring 42, which is fixedly arranged on the upper part of the inner side wall of the welding head 41. A plurality of slide grooves 43 are evenly opened on the upper surface of the inner ring 42. The slide grooves 43 are arranged toward the center of the inner ring 42. A slider 44 is slidably arranged inside the slide groove 43, and a connecting rod 45 is vertically arranged on the top of the slider 44. When the welding head 41 rotates, the inner ring 42 inside it is driven to start rotating. When the inner ring 42 rotates, centrifugal force is generated, so that the slider 44 moves toward the outer end of the slide groove 43. When the slider 44 moves, it drives the connecting rod 45 to start moving.

[0030] The connecting rod 45 is fixedly provided with an arc-shaped baffle 47 on one side facing the center of the inner collar 42. The arc-shaped baffle 47 is provided on the upper part of the inner collar 42. A spring 46 is connected between the slider 44 and the outer end of the slide groove 43. When the connecting rod 45 moves, the arc-shaped baffle 47 is driven to move in the direction of the inner collar 42, so that the flow area between the inner collar 42 and the inner cylinder 34 is increased. At this time, the spring 46 is compressed to generate an elastic force in the opposite direction.

[0031] An inner cylinder 34 is fixedly provided at the center of the welding cylinder 13, and the welding wire 24 passes through the inner cylinder 34 and extends to the bottom of the welding head 41. An inner flow cavity is enclosed between the inner cylinder 34 and the welding cylinder 13, and an air inlet pipe 49 is connected to the outer wall pipeline of the inner flow cavity. A high-pressure pump 48 is fixedly provided on the top of the dust collecting hood 14, and the input end of the air inlet pipe 49 is connected to the pipeline of the high-pressure pump 48. When welding, the high-pressure pump 48 is started, and the shielding gas is introduced into the inner flow cavity through the air inlet pipe 49. When the welding speed needs to be increased, the movement speed of the movable block 12 is accelerated. At this time, the faster the rotation speed of the welding head 41, the greater the opening amplitude of the arc baffle 47, so that the flow rate of the shielding gas is larger, thereby realizing automatic adjustment of the flow rate of the shielding gas, avoiding the instability of the shielding medium layer formed by the shielding gas when the welding speed is different, thereby improving the protection effect on the weld.

[0032] Working principle: during welding, the telescopic cylinder 4 is started to make the movable rod move downward, and when the movable rod moves downward, it drives the lifting plate 5 at the bottom thereof to move downward along the guide rod 6, and when the lifting plate 5 moves downward, it drives the driving motor 7 and the threaded rod 8 to move downward, and when the lifting plate 5 moves to the welding starting position, it stops, and at this time, the driving motor 7 is started to make the reduction driving wheel 9 start to rotate, and when the reduction driving wheel 9 rotates, it drives the reduction driven wheel 10 to start to rotate through the reduction transmission chain meshing therewith, so that the threaded rod 8 starts to rotate, and when the threaded rod 8 rotates, it drives the movable block 12 threadedly connected thereto to start to move to the left, so that the welding tube 13 and the welding head 41 at the bottom thereof move accordingly, and the power supply 17 is started to connect the circuit between the welding wire 24 and the workpiece 15, and the welding wire 24 is melted under the action of high temperature, and the weld on the surface of the workpiece 15 is welded, and at this time, the driving gear 18 inside the movable block 12 Relative motion is generated with the rack 11, so that the driving gear 18 starts to rotate clockwise, and when the driving gear 18 rotates, it drives the first driving wheel 19 to start rotating, and when the first driving wheel 19 rotates, it drives the first driven wheel 20 to start rotating through the first transmission chain 22 meshing therewith, and when the first driven wheel 20 rotates, it drives the second driven wheel 21 on its right side to rotate in the opposite direction through the cross transmission chain 23 meshing therewith, and when the first driven wheel 20 and the second driven wheel 21 rotate, the pair of third driven wheels 26 at the bottom are driven to rotate toward each other through the second transmission chain 25 meshing therewith, so that the friction wheels 27 arranged opposite to each other start to rotate toward each other, and when the friction wheel 27 rotates, the welding wire 24 inside it is driven to move downward at a uniform speed under the action of friction force, thereby realizing uniform speed automatic welding of the workpiece 15, and avoiding uneven welding speed resulting in unstable connection between the welding rod and the weld of the workpiece 15, which affects the welding quality.

[0033] When the first driving wheel 19 rotates, the fourth driven wheel 29 is driven to rotate through the third transmission chain 28 meshing therewith, so that the driving bevel gear 30 starts to rotate. When the driving bevel gear 30 rotates, it drives the driven bevel gear 31 meshing at the bottom thereof to start to rotate, so that the transmission shaft 32 starts to rotate. When the transmission shaft 32 rotates, it drives the transmission gear 33 at the bottom thereof to start to rotate. When the transmission gear 33 rotates, it drives the outer gear 36 meshing therewith to start to rotate. When the outer gear 36 rotates, it drives the welding head 41 at the bottom thereof to start to rotate. When the welding head 41 rotates, it drives the outer gear 36 meshing therewith to start to rotate. The blades 37 on the outer wall begin to rotate, generating suction, sucking the smoke generated during welding into the dust hood 14. After the smoke enters the dust hood 14, it first passes through the filter 38 to filter the dust in the smoke, and the filtered smoke condenses at the bottom of the filter 38. When the welding head 41 rotates, it drives the scraper 39 on its outer wall to start rotating. When the scraper 39 rotates, the smoke at the bottom of the filter 38 is collected and falls into the dust collecting groove 40 at the bottom of the scraper 39, thereby realizing the collection and treatment of the smoke generated during welding to prevent it from polluting the air.

[0034] When the welding head 41 rotates, it drives the inner ring 42 inside it to start rotating. When the inner ring 42 rotates, centrifugal force is generated, causing the slider 44 to move toward the outer end of the slide groove 43. When the slider 44 moves, it drives the connecting rod 45 to start moving. When the connecting rod 45 moves, it drives the arc baffle 47 to move in the direction of the inner ring 42, so that the flow area between the inner ring 42 and the inner cylinder 34 increases. At this time, the spring 46 is compressed to generate an elastic force in the opposite direction. When welding, the high-pressure pump 48 is started, and the shielding gas is introduced into the inner flow cavity through the air inlet pipe 49. When the welding speed needs to be increased, the movement speed of the movable block 12 is accelerated. At this time, the faster the rotation speed of the welding head 41, the larger the opening amplitude of the arc baffle 47, so that the flow rate of the shielding gas is larger, thereby realizing automatic adjustment of the flow rate of the shielding gas, avoiding the instability of the protective medium layer formed by the shielding gas when the welding speed is different, thereby improving the protection effect on the weld.

[0035] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work all belong to the scope of protection of the present invention.

Claims

1. A steel product gas shielded welding equipment, characterized in that: It comprises a processing table (1), a continuous automatic welding mechanism, a synchronous filtering and dust collection mechanism, and a flow regulating mechanism; Side panels (2) are vertically and fixedly arranged on both sides of the top of the processing table (1), a top panel is fixedly arranged on the top of the side panels (2), the continuous automatic welding mechanism is arranged at the bottom of the top panel, the synchronous filtering and dust collection mechanism is arranged at the bottom of the continuous automatic welding mechanism, and the flow regulating mechanism is arranged at the inner bottom of the synchronous filtering and dust collection mechanism. A pair of clamping blocks (16) are movably arranged on both sides of the middle of the processing table (1), and a workpiece (15) is detachably arranged between the clamping blocks (16). A plurality of lifting rods (3) are vertically arranged on the bottom edge of the processing table (1), and a base is fixedly arranged at the bottom of the lifting rods (3).

2. A steel product gas shielded welding equipment according to claim 1, characterized in that The continuous automatic welding mechanism comprises a telescopic cylinder (4), the telescopic cylinder (4) is fixedly arranged at the top center of the top plate, the output end of the telescopic cylinder (4) is vertically downward, the output end of the telescopic cylinder (4) is movably connected to a movable rod, the bottom end of the movable rod is connected to a lifting plate (5), the two ends of the lifting plate (5) are slidably connected to the inner side wall of the side plate (2), the lifting plate (5) and the side plate (2) are arranged vertically, and guide rods (6) are arranged in parallel on both sides of the movable rod, the top end of the guide rod (6) passes through the top plate and extends to the upper part of the top plate, and the bottom end of the guide rod (6) is fixedly connected to the top of the lifting plate (5).

3. A steel product gas shielded welding equipment according to claim 2, characterized in that A driving motor (7) is fixedly arranged at the top right side of the lifting plate (5); the output end of the driving motor (7) is arranged vertically with the side plate (2); the output end of the driving motor (7) is connected to a reduction driving wheel (9); a threaded rod (8) is rotatably arranged between the two ends of the bottom of the lifting plate (5); a reduction driven wheel (10) is arranged on the outer side of the right end of the threaded rod (8); the reduction driven wheel (10) is arranged directly below the reduction driving wheel (9); a reduction transmission belt is meshed between the reduction driven wheel (10) and the reduction driving wheel (9); the diameter of the reduction driven wheel (10) is larger than that of the reduction driving wheel (9).

4. A steel product gas shielded welding equipment according to claim 3, characterized in that The threaded rod (8) is externally threadedly connected to a movable block (12); the top of the movable block (12) is slidably connected to the bottom of the lifting plate (5); a rack (11) is fixedly provided at the bottom of the lifting plate (5); a driving gear (18) is rotatably provided on the left side of the movable block (12); the driving gear (18) is meshingly connected to the rack (11); a first driving wheel (19) is fixedly provided at the center of the front side wall of the driving gear (18); the first driving wheel ( A first driven wheel (20) is rotatably arranged on the right side of the first driving wheel (19), a first transmission chain (22) is meshedly connected between the first driving wheel (19) and the first driven wheel (20), a second driven wheel (21) is rotatably arranged on the right side of the first driven wheel (20), a cross transmission chain (23) is meshedly connected between the first driven wheel (20) and the second driven wheel (21), and a third driven wheel (20) is rotatably arranged on the lower sides of both the first driven wheel (20) and the second driven wheel (21). The movable block (12) is provided with a welding tube (13) on the bottom right side of the movable block (12), and a welding wire (24) is movably arranged between the friction wheels (27) and the welding wire (24) is movably arranged between the friction wheels (27) facing each other. The movable block (12) is provided with a welding tube (13) on the bottom right side of the movable block (12), and the welding wire (24) is movably arranged between the friction wheels (27) ... A welding head (41) is rotatably arranged at the bottom of the cylinder (13); a power source (17) is arranged at the bottom of the processing table (1); the power source (17) is electrically connected to the welding wire (24) and the workpiece (15) respectively; a welding seam is arranged on the surface of the workpiece (15); the welding seam is arranged parallel to the threaded rod (8); the welding head (41) is arranged directly above the welding seam; and the bottom end of the welding wire (24) passes through the welding cylinder (13) and extends to the outside of the bottom of the welding head (41).

5. A steel product gas shielded welding equipment according to claim 4, characterized in that The synchronous filtering dust collection mechanism comprises a fourth driven wheel (29), the fourth driven wheel (29) being rotatably arranged at the lower side of the first driving wheel (19), the diameter of the fourth driven wheel (29) being smaller than that of the first driving wheel (19), a third transmission chain (28) being meshedly connected between the first driving wheel (19) and the fourth driven wheel (29), a driving bevel gear (30) being arranged at the rear side of the fourth driven wheel (29), a driven bevel gear (31) being meshedly arranged at the bottom of the driving bevel gear (30), the diameter of the driving bevel gear (30) being larger than that of the driven bevel gear (31), a transmission shaft (32) being fixedly arranged at the bottom of the driven bevel gear (31), and the transmission shaft (32) being arranged perpendicularly to the lifting plate (5).

6. A steel product gas shielded welding equipment according to claim 5, characterized in that The outer wall of the welding cylinder (13) is fixedly provided with a dust cover (14), the bottom end of the transmission shaft (32) passes through the dust cover (14) and extends to the inside of the dust cover (14), the upper part of the outer wall of the welding head (41) is surrounded by an external gear (36), the bottom end of the transmission shaft (32) is connected to a transmission gear (33), the transmission gear (33) is meshingly connected with the external gear (36), and a plurality of blades (37) are evenly arranged in the middle of the outer wall of the welding head (41).

7. A steel product gas shielded welding equipment according to claim 6, characterized in that A filter screen (38) is fixedly arranged at the lower inner portion of the dust collecting cover (14), a scraper (39) is arranged at the bottom of the outer wall of the welding head (41), the length of the scraper (39) matches the radius of the filter screen (38), a dust collecting groove (40) is fixedly arranged at the bottom of the scraper (39), and the opening of the dust collecting groove (40) is arranged at the front side of the rotation direction of the scraper (39).

8. The gas shielded welding equipment for steel products according to claim 6, characterized in that The flow regulating mechanism comprises an inner ring (42), the inner ring (42) being fixedly arranged on the upper part of the inner wall of the welding head (41), the upper surface of the inner ring (42) being evenly provided with a plurality of slide grooves (43), the slide grooves (43) being arranged in the direction of the center of the circle of the inner ring (42), a slider (44) being slidably arranged inside the slide groove (43), and a connecting rod (45) being vertically arranged on the top of the slider (44).

9. A steel product gas shielded welding equipment according to claim 8, characterized in that A curved baffle plate (47) is fixedly provided on one side of the connecting rod (45) facing the center of the inner ring (42), and the curved baffle plate (47) is provided on the upper part of the inner ring (42). A spring (46) is connected between the slider (44) and the outer end of the slide groove (43).

10. A steel product gas shielded welding equipment according to claim 9, characterized in that An inner cylinder (34) is fixedly arranged at the center of the welding cylinder (13); the welding wire (24) passes through the inner cylinder (34) and extends to the bottom of the welding head (41); an inner flow cavity is formed between the inner cylinder (34) and the welding cylinder (13); an outer wall pipeline of the inner flow cavity is connected to an air intake pipe (49); a high-pressure pump (48) is fixedly arranged on the top of the dust collecting hood (14); and an input end of the air intake pipe (49) is connected to the pipeline of the high-pressure pump (48).

Images