A laser welding machine for tubes used in sports equipment

Abstract

The present invention discloses a laser welding machine for tubes used in sports equipment, which belongs to the field of laser welding technology and includes a mounting assembly, a transverse tube arrangement clamping assembly for clamping transverse tubes and arranging the transverse tubes at equal intervals, and a fixed rod clamping assembly for fixing the front and rear fixed rods. Through the above-mentioned method, the present invention realizes the clamping of transverse tubes with different inner and outer diameters, and arranges multiple groups of transverse tubes at equal intervals, realizes the clamping of fixed rods with different cross-sectional length and width dimensions, and can adjust the welding position with the transverse tube to meet different welding positions. It can guide and block the positioning when the fixed rod is loaded, and can detect sudden obstacles during welding through millimeter wave radar, so that the laser welding assembly can perform intelligent avoidance and trigger path replanning to protect the equipment from damage. At the same time, it can also prevent personal injuries caused by collisions, thereby ensuring the safety of the welding working environment.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to a laser welding machine for tubes used for sports equipment. Background Art

[0002] At a time when the global sports industry is booming, my country's sporting goods manufacturing industry has demonstrated strong resilience and broad prospects. The manufacturing of sports equipment involves a variety of processes, and welding is a key link.

[0003] Laser welding, a key application, offers high quality, high strength, high precision, low cost, and automated processes, bringing new hope for transformative progress in the processing of sports equipment tubing. Laser welding utilizes a high-energy-density laser beam as a heat source, melting the workpiece through heat conduction to form a specific molten pool. This welding method offers a narrow weld width, a minimal heat-affected zone, and minimal deformation, effectively ensuring weld quality. It is particularly suitable for welding sports equipment tubing requiring extremely high precision. Furthermore, laser welding boasts high speeds, significantly improving production efficiency and meeting growing market demand.

[0004] In the existing parallel ladder welding, it is necessary to frequently replace different clamps for the cross tubes (5) of different inner and outer diameters and the fixing rods (6) of different cross-sectional length and width dimensions. This operation is cumbersome, not only wasting time and increasing labor intensity, but also increasing the procurement cost and storage management cost of the clamps, reducing the versatility and production efficiency of the equipment. At the same time, due to the frequent replacement of the clamps, there may be certain errors in the clamping and positioning of the cross tubes (5), resulting in different spacing between the cross tubes (5), affecting the accuracy and consistency of the welding, and thus reducing the quality of the product.

[0005] At the same time, the welding position of the fixing rod (6) and the transverse tube (5) cannot be flexibly adjusted, which cannot meet diverse welding requirements, thus limiting the design and manufacture of the product.

[0006] During the welding process, existing equipment often does not have sudden obstacle detection. When an obstacle appears, the laser welding equipment cannot respond in time and is prone to collision with the obstacle. This will not only damage the equipment and increase maintenance costs, but may also pose a threat to the safety of the operator, posing a major safety hazard.

[0007] Based on this, the present invention designs a laser welding machine for tubes used in sports equipment to solve the above problems. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a laser welding machine for pipes used in sports equipment.

[0009] The technical solutions adopted to solve the above technical problems are:

[0010] A laser welding machine for tubes used in sports equipment, comprising a mounting assembly, mounted on which is a transverse tube arrangement clamping assembly for clamping transverse tubes and arranging them at equal intervals, mounted on which is a fixed rod clamping assembly for securing front and rear fixed rods, mounted on which is a laser welding assembly for welding the transverse tubes and fixed rods, and mounted on which is a millimeter-wave radar;

[0011] The horizontal tube arrangement clamping assembly includes an equidistant linear module, a clamping assembly and a drive assembly. The equidistant linear module is connected to the installation assembly. Multiple groups of clamping assemblies are arranged at equal intervals on the left and right. The clamping assembly is connected to the equidistant linear module and the drive assembly. The drive assembly is connected to the installation assembly.

[0012] Through the above technical solution, the clamping assembly is used to clamp the transverse tubes with different inner and outer diameters. At the same time, the equidistant linear module drives the clamping assembly to arrange multiple groups of transverse tubes at equal intervals, thereby improving the versatility of the equipment, reducing the trouble of replacing different clamps due to different inner and outer diameters, and reducing costs. After being clamped, the transverse tube moves to a specific position, ensuring the accuracy and consistency of welding, which is conducive to improving product quality and production efficiency. The fixed rod clamping assembly is used to clamp fixed rods with different cross-sectional length and width dimensions, which has good versatility and adaptability, improves production efficiency, and adjusts the clamping height by adjusting the fixed rod clamping assembly to adjust the welding position with the transverse tube to meet different welding positions. The fixed rod clamping assembly can be used to guide and block the positioning when the fixed rod is loaded, reducing product quality problems caused by position deviation, unstable clamping and other factors, and improving product consistency and qualified rate. The millimeter wave radar detects sudden obstacles during welding, enabling the laser welding assembly to intelligently avoid and trigger path replanning to protect the equipment from damage. At the same time, it can also prevent personal injuries caused by collisions, ensuring the safety of the welding working environment.

[0013] Furthermore, the mounting assembly includes a mounting base, a mounting top frame, a rotary workbench, a mounting vertical plate, a mounting horizontal plate, a first mounting ear and a second mounting ear. The lower end of the mounting top frame is detachably connected to the upper end of the mounting base by screws. The rotary workbench and the mounting vertical plate are symmetrically arranged in two groups. The two groups of rotary workbenches are respectively fixedly mounted on the left and right inner walls of the mounting base, and the two groups of mounting vertical plates are respectively fixedly mounted on the output end of the rotary workbench. The left and right end surfaces of the mounting horizontal plate are respectively fixedly connected to the inner side walls of the mounting vertical plates at both ends. The equidistant straight The wire module is fixedly installed on the upper end surface of the mounting horizontal plate, and the mounting horizontal plate is connected to the fixed rod clamping assembly. The lower end surface of the mounting horizontal plate is fixedly installed with multiple groups of horizontal connecting seats and multiple groups of longitudinal connecting seats. The first mounting ears and the second mounting ears are respectively arranged in four groups in a rectangular four-point style, and the two groups on the left are symmetrical with the two groups on the right. The first mounting ears and the second mounting ears of the two groups on the left are fixedly installed on the lower end of the inner end surface of the left mounting vertical plate, and the first mounting ears and the second mounting ears of the two groups on the right are fixedly installed on the lower end of the inner end surface of the right mounting vertical plate, and the first mounting ears are connected to the fixed rod clamping assembly.

[0014] Through the above technical solution, the dual-shaft motor drives the installation vertical plate and the installation horizontal plate to flip the horizontal tube arrangement clamping assembly and the fixed rod clamping assembly to weld both sides of the horizontal tube and the fixed rod.

[0015] The two lever arrangement comprises a first end portion mounted on the left side of the chassis and a second end portion mounted on the bottom side of the chassis, the second end portion being fixedly mounted on the chassis by a bolt, and the bolt has a round shank to contact with the two linking members.

[0016] Through the above technical solution, the cross tube is supported by two sets of auxiliary support plates, the spline sleeve is driven by the driving assembly, the spline sleeve drives the bidirectional threaded sleeve to rotate, and the opposite threads on the bidirectional threaded sleeve drive the two sets of movable plates to move closer to the center. The first slide bar guides the movable plate when it moves, and the movable plate drives the clamping block. The two sets of clamping blocks cooperate to clamp and limit a set of cross tubes. When replacing cross tubes with different inner and outer diameters, the installation position of the clamping block can be adjusted through the installation slot for adaptation.

[0017] Furthermore, the clamping assembly also includes a first trapezoidal groove and a second trapezoidal groove. The upper end of each group of auxiliary support plates is provided with a first trapezoidal groove, and the inner side of each group of clamping blocks is provided with a second trapezoidal groove.

[0018] Furthermore, the drive assembly includes a reduction motor and a spline shaft, the reduction motor is fixedly mounted on the inner wall of the right end of the mounting base, the left end of the spline shaft is fixedly connected to the output end of the reduction motor, the right end of the spline shaft is rotatably connected to the right end panel of the mounting base, and the spline sleeve is meshed and slidably connected to the spline shaft.

[0019] Through the above technical solution, the first trapezoidal groove and the second trapezoidal groove can be adapted to cross tubes with different inner and outer diameters. The spline shaft is driven by the reduction motor, and the spline shaft drives multiple groups of spline sleeves to enable the clamping assembly to clamp the cross tube. At the same time, the equidistant linear module can drive multiple groups of clamping assemblies to be arranged at equal intervals. The bidirectional threaded sleeve is arranged on the outside of the spline shaft and does not contact the spline shaft. The two groups of spline sleeves in a group of clamping assemblies are engaged and slidably connected with the spline shaft, which not only realizes the driving of the bidirectional threaded sleeve, but also does not affect the equidistant linear module driving the clamping assemblies to be arranged at equal intervals.

[0020] Furthermore, the fixed rod clamping assembly includes a double-shaft motor, a transmission assembly, a limit assembly and an adjustable support assembly. The double-shaft motor is fixedly mounted on the lower end surface of the mounting horizontal plate. The transmission assembly is connected to the mounting horizontal plate, the first mounting ear, the double-shaft motor and the limit assembly. The transmission assembly is symmetrically arranged in two groups on the left and right. The limit assembly and the adjustable support assembly are arranged in four groups in a rectangular four-point manner. The four groups of adjustable support assemblies are respectively arranged on the four groups of limit assemblies.

[0021] Further, the transmission assembly includes a transmission main shaft, a transmission countershaft, a first bevel gear, a second bevel gear, a worm and a worm wheel, the two groups of the transmission main shafts are respectively rotatably connected to the transverse connecting seat at the lower end of the mounting cross plate, the inner ends of the two groups of the transmission main shafts are respectively fixedly connected to the two groups of output ends of the double-output shaft motor, the outer ends of the two groups of the transmission main shafts are respectively fixedly connected to the inner end faces of the two groups of first bevel gears, the left and right groups of the first bevel gears are respectively meshed with the left and right groups of the second bevel gears, and the left and right groups of the second bevel gears are respectively fixedly installed on the outer walls of the left and right groups of the transmission countershafts, the transmission countershaft is rotatably connected to the longitudinal connecting seat at the lower end of the mounting cross plate, the transmission countershaft at the left end is rotatably connected to the two groups of first mounting ears on the left, and the transmission countershaft at the right end is rotatably connected to the two groups of first mounting ears on the right, the worm gear is symmetrically arranged front and back, and two groups of the worm wheels are symmetrically arranged front and back, and are respectively meshed with the two groups of worms, and the worm wheels are connected to the limiting assembly.

[0022] Through the above technical solution, the transmission main shaft is driven by a double-output shaft motor, the transmission main shaft drives the first bevel gear, the first bevel gear drives the second bevel gear, the second bevel gear drives the transmission countershaft to rotate on the first mounting ear, the transmission countershaft drives the worm, the worm drives the worm wheel, and the worm wheel drives the limiting assembly to limit and fix the fixed rod. The four groups of limiting assemblies are synchronously driven by a set of double-output shaft motors to achieve precise synchronous operation, while also reducing the possibility of failure caused by coordination problems between multiple independent drive components, thereby improving the reliability and stability of the entire system.

[0023] Furthermore, the limit assembly includes a connecting frame, a second sliding rod, a first threaded rod and a limit pressure plate, the outer wall of the connecting frame is fixedly connected to the inner wall of the mounting base, the second sliding rod is fixedly installed on the inner wall of the connecting frame, the upper end of the first threaded rod is rotatably connected to the connecting frame, the lower ends of the four groups of first threaded rods are respectively rotatably connected to the four groups of second mounting ears, the four groups of worm gears are respectively fixedly installed on the outer walls of the lower ends of the four groups of first threaded rods, the limit pressure plate is limitedly slidably connected to the second sliding rod, and the limit pressure plate is threadedly connected to the first threaded rod.

[0024] Through the above technical solution, the worm gear drives the first threaded rod, the first threaded rod drives the limiting pressure plate to cooperate with the adjustable support assembly to limit the fixed rod, and the second sliding rod guides when the limiting pressure plate moves.

[0025] Furthermore, the adjustable support assembly includes a support plate, a third sliding rod, a second threaded rod, a driving turntable and a nut, the upper end of the second threaded rod is rotatably connected to the lower end surface of the support plate, the second threaded rod is threadedly connected to the inner side of the lower end panel of the connecting frame, the lower end surface of the second threaded rod is fixedly connected to the upper end surface of the driving turntable, and the third sliding rod is arranged in two groups on the left and right, the upper end surface of the third sliding rod is fixedly connected to the lower end surface of the support plate, the third sliding rod is limitedly slidably connected to the lower end panel of the connecting frame, the nut is threadedly connected to the second threaded rod, and the upper end surface of the nut is in contact with the lower end surface of the connecting frame.

[0026] Through the above technical solution, the second threaded rod is driven to rotate by driving the turntable, and the second threaded rod is threadedly connected to the connecting frame to drive the support plate to rise. The third sliding rod guides when the support plate rises, and then is tightened on the second threaded rod by a nut. The nut contacts the connecting frame to fix the second threaded rod. By adjusting the height of the support plate, the welding position with the cross pipe can be adjusted to meet different welding positions.

[0027] Furthermore, a group of guide plates and a group of positioning baffles are fixedly installed on the inner side of the inner bottom surface of each group of the connecting frames, the inner side walls of the guide plates are fixedly connected to the outer side walls of the positioning baffles, and the setting direction of the guide plates is gradually opened from the inside to the outside. The two front groups of guide plates cooperate to guide a group of fixed rods and are blocked and positioned by the two front groups of positioning baffles, and the two rear groups of guide plates cooperate to guide a group of fixed rods and are blocked and positioned by the two rear groups of positioning baffles.

[0028] Through the above technical solution, the fixed rod is guided by the guide plate, and the inner side of the fixed rod is limited by the positioning baffle, thereby ensuring the loading position of the fixed rod, reducing product quality problems caused by position deviation, unstable clamping and other factors, and improving product consistency and qualification rate.

[0029] Furthermore, the laser welding assembly includes a linear module, a mounting plate, a robotic arm and a laser welding head. The linear module is fixedly mounted on the inner top surface of the mounting top frame, the upper end surface of the mounting plate is fixedly connected to the slider on the linear module, the lower end surface of the mounting plate is fixedly connected to the upper end surface of the robotic arm, the laser welding head is fixedly mounted on the output end of the robotic arm, and the millimeter wave radar is fixedly mounted on the rear side wall of the turntable at the upper end of the robotic arm.

[0030] Through the above technical solution, the linear module drives the mounting plate, and the mounting plate drives the robotic arm to move horizontally. The robotic arm drives the laser welding head to weld the cross tube and the fixed rod. The millimeter-wave radar performs real-time detection during welding. When sudden obstacles appear, the laser welding component intelligently avoids them and triggers path re-planning to protect the equipment from damage. At the same time, it can also prevent personal injuries caused by collisions, ensuring the safety of the welding work environment.

[0031] The beneficial effects of the present invention are as follows: (1) The clamping assembly is used to clamp transverse tubes of different inner and outer diameters. At the same time, the equidistant linear module drives the clamping assembly to arrange multiple groups of transverse tubes at equal intervals, thereby improving the versatility of the equipment, reducing the trouble of replacing different clamps due to different inner and outer diameters, and reducing costs. After being clamped, the transverse tube moves to a specific position, ensuring the accuracy and consistency of welding, which is conducive to improving product quality and production efficiency; (2) The fixed rod clamping assembly is used to clamp fixed rods of different cross-sectional length and width sizes, which has good versatility and adaptability, improves production efficiency, and the clamping height can be adjusted by adjusting the fixed rod clamping assembly to adjust the welding position with the transverse tube, which can meet different welding positions. The fixed rod clamping assembly can be used to guide and block the fixed rod when loading, reducing product quality problems caused by factors such as position deviation and unstable clamping, and improving product consistency and qualified rate; (3) The millimeter wave radar detects sudden obstacles during welding, so that the laser welding assembly can intelligently avoid and trigger path replanning, protecting the equipment from damage, and also preventing injuries to personnel caused by collisions, thereby ensuring the safety of the welding working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional laser welding machine for a sports equipment pipe of the present invention Figure 1 ;

[0033] Figure 2 It is a front view of a laser welding machine for sports equipment pipes of the present invention;

[0034] Figure 3 This is a left side view of a laser welding machine for sports equipment pipes according to the present invention;

[0035] Figure 4 A three-dimensional laser welding machine for a sports equipment pipe of the present invention Figure 2 ;

[0036] Figure 5 A three-dimensional laser welding machine for a sports equipment pipe of the present invention Figure 3 ;

[0037] Figure 6 A three-dimensional laser welding machine for a sports equipment pipe of the present invention Figure 4 ;

[0038] Figure 7 for Figure 4 Enlarged view of point A in the middle;

[0039] Figure 8 for Figure 5 Enlarged view of point B in the middle;

[0040] Figure 9 for Figure 6 Enlarged view of point C in the middle.

[0041] Reference numerals:

[0042] 1. Mounting assembly; 11. Mounting base; 12. Mounting top frame; 13. Rotary worktable; 14. Mounting vertical plate; 15. Mounting horizontal plate; 16. First mounting ear; 17. Second mounting ear; 2. Horizontal tube arrangement clamping assembly; 21. Equidistant linear module; 22. Clamping assembly; 221. Mounting frame; 222. Spline sleeve; 223. Bidirectional threaded sleeve; 224. First slide bar; 225. Auxiliary support plate; 226. First trapezoidal groove; 227. Movable plate; 228. Mounting groove; 229. Clamping block; 2210. Second trapezoidal groove; 23. Drive assembly; 231. Reducer motor; 232. Spline shaft; 3. Fixed rod clamping assembly; 31. Double-shaft motor; 3 2. Transmission assembly; 321. Transmission main shaft; 322. Transmission secondary shaft; 323. First bevel gear; 324. Second bevel gear; 325. Worm; 326. Worm wheel; 33. Limiting assembly; 331. Connecting frame; 332. Second slide bar; 333. First threaded rod; 334. Limiting pressure plate; 34. Adjustable support assembly; 341. Support plate; 342. Third slide bar; 343. Second threaded rod; 344. Drive turntable; 345. Nut; 35. Guide plate; 36. Positioning baffle; 4. Laser welding assembly; 41. Linear module; 42. Mounting plate; 43. Robotic arm; 44. Laser welding head; 5. Cross tube; 6. Fixing rod; 7. Millimeter-wave radar. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0045] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-9A laser welding machine for pipes used for sports equipment includes an installation component 1, on which is installed a transverse tube arrangement clamping component 2 for clamping transverse tubes 5 and arranging the transverse tubes 5 at equal intervals, and on which is installed a fixed rod clamping component 3 for fixing fixed rods 6 on the front and rear sides. A laser welding component 4 for welding the transverse tubes 5 and the fixed rods 6 is installed on the installation component 1, and a millimeter wave radar 7 is installed on the laser welding component 4.

[0046] The mounting assembly 1 includes a mounting base 11, a mounting top frame 12, a rotary workbench 13, a mounting vertical plate 14, a mounting horizontal plate 15, a first mounting ear 16 and a second mounting ear 17. The lower end of the mounting top frame 12 is detachably connected to the upper end of the mounting base 11 by screws. The rotary workbench 13 and the mounting vertical plate 14 are symmetrically arranged in two groups. The two groups of rotary workbenches 13 are respectively fixedly mounted on the left and right inner walls of the mounting base 11. The two groups of mounting vertical plates 14 are respectively fixedly mounted on the output end of the rotary workbench 13. The left and right end surfaces of the mounting horizontal plate 15 are respectively fixedly connected to the inner walls of the mounting vertical plates 14 at both ends. The equidistant linear module 2 1 is fixedly mounted on the upper end surface of the mounting transverse plate 15, and the mounting transverse plate 15 is connected to the fixed rod clamping assembly 3. The lower end surface of the mounting transverse plate 15 is fixedly mounted with multiple groups of transverse connecting seats and multiple groups of longitudinal connecting seats. The first mounting ears 16 and the second mounting ears 17 are respectively arranged in a rectangular four-point type, with four groups, and the two groups on the left are symmetrical with the two groups on the right. The first mounting ears 16 and the second mounting ears 17 in the two groups on the left are fixedly mounted on the lower end of the inner end surface of the left mounting vertical plate 14, and the first mounting ears 16 and the second mounting ears 17 in the two groups on the right are fixedly mounted on the lower end of the inner end surface of the right mounting vertical plate 14. The first mounting ears 16 are connected to the fixed rod clamping assembly 3.

[0047] The horizontal tube arrangement clamping assembly 2 includes an equidistant linear module 21, a clamping assembly 22 and a drive assembly 23. The equidistant linear module 21 is connected to the installation assembly 1. Multiple groups of clamping assemblies 22 are arranged at equal intervals on the left and right. The clamping assembly 22 is connected to the equidistant linear module 21 and the drive assembly 23. The drive assembly 23 is connected to the installation assembly 1.

[0048] The clamping assembly 22 includes a mounting frame 221, a spline sleeve 222, a bidirectional threaded sleeve 223, a first slide bar 224, an auxiliary support plate 225, a movable plate 227, a mounting groove 228 and a clamping block 229. The lower end surface of the mounting frame 221 is fixedly connected to the upper end surface of the slider on the equidistant linear module 21. The spline sleeve 222 is symmetrically arranged with two groups of left and right sides respectively rotatably mounted on the left and right sides of the upper end of the mounting frame 221. The spline sleeve 222 is connected to the driving assembly 23. The left and right ends of the bidirectional threaded sleeve 223 are respectively fixedly connected to the inner side walls of the two groups of spline sleeves 222. The first slide bar 224 is arranged at the lower end of the bidirectional threaded sleeve 223. The first slide bar 224 is fixedly mounted on the left and right inner walls of the mounting frame 221, and two groups of auxiliary support plates 225 are symmetrically arranged front and back. The inner walls of the two groups of auxiliary support plates 225 are respectively fixedly connected to the front and rear side walls of the mounting frame 221, and two groups of movable plates 227 and clamping blocks 229 are symmetrically arranged left and right. The lower ends of the two groups of movable plates 227 are both limitedly slidably connected to the first slide bar 224, and the two groups of movable plates 227 are respectively threadedly connected to different thread positions of the two-way threaded sleeve 223. Both groups of movable plates 227 are provided with mounting grooves 228, and the clamping blocks 229 are detachably connected to the movable plates 227 by screws in conjunction with the mounting grooves 228.

[0049] The clamping assembly 22 further includes a first trapezoidal groove 226 and a second trapezoidal groove 2210 . The upper end of each set of auxiliary support plates 225 is provided with a first trapezoidal groove 226 , and the inner side of each set of clamping blocks 229 is provided with a second trapezoidal groove 2210 .

[0050] The driving assembly 23 includes a reduction motor 231 and a spline shaft 232. The reduction motor 231 is fixedly mounted on the inner wall of the right end of the mounting base 11. The left end of the spline shaft 232 is fixedly connected to the output end of the reduction motor 231. The right end of the spline shaft 232 is rotatably connected to the right end panel of the mounting base 11. The spline sleeve 222 is meshed and slidably connected to the spline shaft 232.

[0051] The fixed rod clamping assembly 3 includes a double-output shaft motor 31, a transmission assembly 32, a limit assembly 33 and an adjustable support assembly 34. The double-output shaft motor 31 is fixedly mounted on the lower end surface of the mounting horizontal plate 15. The transmission assembly 32 is connected to the mounting horizontal plate 15, the first mounting ear 16, the double-output shaft motor 31, and the limit assembly 33. The transmission assembly 32 is symmetrically arranged in two groups. The limit assembly 33 and the adjustable support assembly 34 are arranged in four groups in a rectangular four-point manner. The four groups of adjustable support assemblies 34 are respectively arranged on the four groups of limit assemblies 33.

[0052] The transmission assembly 32 includes a transmission main shaft 321, a transmission countershaft 322, a first bevel gear 323, a second bevel gear 324, a worm 325 and a worm wheel 326. The two groups of transmission main shafts 321 are rotatably connected to the horizontal connecting seat at the lower end of the mounting cross plate 15. The inner ends of the two groups of transmission main shafts 321 are fixedly connected to the two groups of output ends of the double-output shaft motor 31, and the outer ends of the two groups of transmission main shafts 321 are fixedly connected to the inner end faces of the two groups of first bevel gears 323. The left and right two groups of first bevel gears 323 are meshed with the left and right two groups of second bevel gears 324, respectively. The bevel gear 324 is fixedly mounted on the outer side walls of the left and right groups of transmission countershafts 322 respectively. The transmission countershaft 322 is rotatably connected to the longitudinal connecting seat at the lower end of the mounting cross plate 15. The transmission countershaft 322 at the left end is rotatably connected to the two groups of first mounting ears 16 on the left side, and the transmission countershaft 322 at the right end is rotatably connected to the two groups of first mounting ears 16 on the right side. Two groups of worms 325 are symmetrically arranged front and back and are respectively fixedly mounted on the outer side walls at both ends of the transmission countershaft 322. Two groups of worm wheels 326 are symmetrically arranged front and back and are respectively meshed with the two groups of worms 325. The worm wheel 326 is connected to the limiting assembly 33.

[0053] The limiting assembly 33 includes a connecting frame 331, a second sliding rod 332, a first threaded rod 333 and a limiting pressure plate 334. The outer wall of the connecting frame 331 is fixedly connected to the inner wall of the mounting base 11, the second sliding rod 332 is fixedly installed on the inner wall of the connecting frame 331, the upper end of the first threaded rod 333 is rotatably connected to the connecting frame 331, the lower ends of the four groups of first threaded rods 333 are respectively rotatably connected to the four groups of second mounting ears 17, the four groups of worm gears 326 are respectively fixedly installed on the outer walls of the lower ends of the four groups of first threaded rods 333, the limiting pressure plate 334 is slidingly connected to the second sliding rod 332, and the limiting pressure plate 334 is threadedly connected to the first threaded rod 333.

[0054] The adjustable support assembly 34 includes a support plate 341, a third sliding rod 342, a second threaded rod 343, a driving turntable 344 and a nut 345. The upper end of the second threaded rod 343 is rotatably connected to the lower end surface of the support plate 341, the second threaded rod 343 is threadedly connected to the inner side of the lower end panel of the connecting frame 331, and the lower end surface of the second threaded rod 343 is fixedly connected to the upper end surface of the driving turntable 344. The third sliding rod 342 is arranged in two groups on the left and right. The upper end surface of the third sliding rod 342 is fixedly connected to the lower end surface of the support plate 341, the third sliding rod 342 is limitedly slidably connected to the lower end panel of the connecting frame 331, the nut 345 is threadedly connected to the second threaded rod 343, and the upper end surface of the nut 345 is in contact with the lower end surface of the connecting frame 331.

[0055] A group of guide plates 35 and a group of positioning baffles 36 are fixedly installed on the inner side of the inner bottom surface of each group of connecting frames 331. The inner side walls of the guide plates 35 are fixedly connected to the outer side walls of the positioning baffles 36. The setting direction of the guide plates 35 is gradually opened from the inside to the outside. The two front groups of guide plates 35 cooperate to guide a group of fixed rods 6 and are blocked and positioned by the two front groups of positioning baffles 36. The two rear groups of guide plates 35 cooperate to guide a group of fixed rods 6 and are blocked and positioned by the two rear groups of positioning baffles 36.

[0056] The laser welding assembly 4 includes a linear module 41, a mounting plate 42, a robotic arm 43 and a laser welding head 44. The linear module 41 is fixedly mounted on the inner top surface of the mounting top frame 12. The upper end surface of the mounting plate 42 is fixedly connected to the slider on the linear module 41. The lower end surface of the mounting plate 42 is fixedly connected to the upper end surface of the robotic arm 43. The laser welding head 44 is fixedly mounted on the output end of the robotic arm 43. The millimeter wave radar 7 is fixedly mounted on the rear side wall of the turntable at the upper end of the robotic arm 43.

[0057] When the present invention is in use, the equidistant linear module 21 is in a retracted state. At this time, multiple groups of transverse tubes 5 are placed on the auxiliary support plates 225 in the multiple groups of clamping assemblies 22 in sequence. At this time, the placement only needs to be placed in the same position without moving, which improves the loading efficiency. Then, the spline shaft 232 is driven by the reduction motor 231, and the spline shaft 232 drives multiple groups of spline sleeves 222. The spline sleeves 222 drive the bidirectional threaded sleeves 223 to rotate. The opposite threads on the bidirectional threaded sleeves 223 drive the two groups of movable plates 227 to move closer to the center. The first slide bar 224 guides the movable plate 227 when it moves. The movable plate 227 drives the clamping block 229. The two groups of clamping blocks 229 cooperate to clamp and limit a group of transverse tubes 5. The multiple groups of clamping assemblies 22 are arranged at equal intervals by the equidistant linear module 21.

[0058] Then, the fixing rod 6 is guided by the guide plate 35, and the inner side of the fixing rod 6 is limited by the positioning baffle 36 to ensure the loading position of the fixing rod 6. The transmission main shaft 321 is driven by the double-output shaft motor 31, and the transmission main shaft 321 drives the first bevel gear 323, the first bevel gear 323 drives the second bevel gear 324, and the second bevel gear 324 drives the transmission countershaft 322 to rotate on the first mounting ear 16, and the transmission countershaft 322 drives the worm 325, the worm 325 drives the worm gear 326, and the worm gear 326 drives the first threaded rod 333, and the first threaded rod 333 drives the limiting pressure plate 334, and the limiting pressure plate 334 cooperates with the support plate 341 to limit the fixing rod 6;

[0059] When the cross-sectional length and width fixing rod 6 is replaced, the second threaded rod 343 is driven to rotate by driving the turntable 344. The second threaded rod 343 is threadedly connected to the connecting frame 331, thereby driving the support plate 341 to rise. The third sliding rod 342 guides the support plate 341 when it rises, and then the nut 345 is tightened on the second threaded rod 343. The nut 345 contacts the connecting frame 331 to fix the second threaded rod 343 and achieve height adjustment and adaptation of the support plate 341. It is also suitable for adjusting the welding position of the fixing rod 6 and the cross pipe 5 to meet different welding positions.

[0060] After the front welding of the cross tube 5 and the fixed rod 6 is completed, the rotary workbench 13 drives the mounting vertical plate 14 and the mounting horizontal plate 15 to rotate and weld the back sides of the cross tube 5 and the fixed rod 6. The welding can be completed in one time without removing the workpiece for flipping. The linear module 41 drives the mounting plate 42, and the mounting plate 42 drives the robotic arm 43 to move horizontally. The robotic arm 43 drives the laser welding head 44 to weld the cross tube 5 and the fixed rod 6. The millimeter wave radar 7 is used for real-time detection during welding. When sudden obstacles appear, the laser welding component 4 performs intelligent avoidance and triggers path re-planning to protect the equipment from damage. At the same time, it can also prevent personal injuries caused by collisions, thereby ensuring the safety of the welding working environment.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. The above description is only an embodiment of the present invention and is not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A laser welding machine for tubes for sports equipment, comprising a mounting assembly (1), characterized in that: The mounting assembly (1) is provided with a transverse tube arrangement clamping assembly (2) for clamping the transverse tubes (5) and arranging the transverse tubes (5) at equal intervals, the mounting assembly (1) is provided with a fixed rod clamping assembly (3) for fixing the fixed rods (6) at the front and rear sides, the mounting assembly (1) is provided with a laser welding assembly (4) for welding the transverse tubes (5) and the fixed rods (6), and the laser welding assembly (4) is provided with a millimeter wave radar (7); The horizontal tube arrangement clamping assembly (2) comprises an equidistant linear module (21), a clamping assembly (22) and a driving assembly (23); the equidistant linear module (21) is connected to the mounting assembly (1); a plurality of clamping assemblies (22) are arranged at equal intervals on the left and right; the clamping assembly (22) is connected to the equidistant linear module (21) and the driving assembly (23); and the driving assembly (23) is connected to the mounting assembly (1); The mounting assembly (1) includes a mounting base (11), a mounting top frame (12), a rotary workbench (13), a mounting vertical plate (14), a mounting horizontal plate (15), a first mounting ear (16) and a second mounting ear (17). The lower end of the mounting top frame (12) is detachably connected to the upper end of the mounting base (11) by screws. The rotary workbench (13) and the mounting vertical plate (14) are symmetrically arranged in two groups. The two groups of the rotary workbench (13) are respectively fixedly mounted on the left and right inner walls of the mounting base (11). The two groups of the mounting vertical plates (14) are respectively fixedly mounted on the output end of the rotary workbench (13). The left and right end surfaces of the mounting horizontal plate (15) are respectively fixedly connected to the inner walls of the mounting vertical plates (14) at both ends. The equidistant linear module (21) is fixedly mounted on the upper end surface of the mounting horizontal plate (15), and the mounting horizontal plate (15) is connected to the fixed rod clamping assembly (3). The lower end surface of the mounting horizontal plate (15) is fixedly mounted with multiple groups of horizontal connecting seats and multiple groups of longitudinal connecting seats. The first mounting ears (16) and the second mounting ears (17) are respectively arranged in four groups in a rectangular four-point manner, and the two groups on the left are symmetrical with the two groups on the right. The first mounting ears (16) and the second mounting ears (17) located in the two groups on the left are fixedly mounted on the lower end of the inner end surface of the left mounting vertical plate (14), and the first mounting ears (16) and the second mounting ears (17) located in the two groups on the right are fixedly mounted on the lower end of the inner end surface of the right mounting vertical plate (14). The first mounting ears (16) and the second mounting ears (17) located in the two groups on the right are fixedly mounted on the lower end of the inner end surface of the right mounting vertical plate (14). The first mounting ears (16) are connected to the fixed rod clamping assembly (3).

2. The laser welding machine for sports equipment pipes according to claim 1, characterized in that: The clamping assembly (22) includes a mounting frame (221), a spline sleeve (222), a bidirectional threaded sleeve (223), a first slide bar (224), an auxiliary support plate (225), a movable plate (227), a mounting groove (228) and a clamping block (229). The lower end surface of the mounting frame (221) is fixedly connected to the upper end surface of the slider on the equidistant linear module (21). The spline sleeve (222) is symmetrically arranged in two groups and is rotatably mounted on the left and right sides of the upper end of the mounting frame (221). The spline sleeve (222) is connected to the driving assembly (23). The left and right ends of the bidirectional threaded sleeve (223) are fixedly connected to the inner side walls of the two groups of spline sleeves (222). The first slide bar (224) is arranged on the bidirectional threaded sleeve (223). ), the first slide bar (224) is fixedly mounted on the left and right inner side walls of the mounting frame (221), the auxiliary support plates (225) are symmetrically arranged in two groups, the inner side walls of the two groups of auxiliary support plates (225) are respectively fixedly connected to the front and rear side walls of the mounting frame (221), the movable plates (227) and the clamping blocks (229) are symmetrically arranged in two groups, the lower ends of the two groups of movable plates (227) are both limitedly slidably connected to the first slide bar (224), the two groups of movable plates (227) are respectively threadedly connected to different thread positions of the bidirectional threaded sleeve (223), the two groups of movable plates (227) are both provided with mounting grooves (228), and the clamping blocks (229) are detachably connected to the movable plates (227) by screws matching the mounting grooves (228).

3. The laser welding machine for sports equipment pipes according to claim 2, characterized in that: The clamping assembly (22) further comprises a first trapezoidal groove (226) and a second trapezoidal groove (2210), wherein the upper end of each set of auxiliary support plates (225) is provided with the first trapezoidal groove (226), and the inner side of each set of clamping blocks (229) is provided with the second trapezoidal groove (2210); The driving assembly (23) includes a reduction motor (231) and a spline shaft (232), wherein the reduction motor (231) is fixedly mounted on the inner side wall of the right end of the mounting base (11), the left end of the spline shaft (232) is fixedly connected to the output end of the reduction motor (231), the right end of the spline shaft (232) is rotatably connected to the right end panel of the mounting base (11), and the spline sleeve (222) is meshed and slidably connected to the spline shaft (232).

4. The laser welding machine for sports equipment pipes according to claim 3, characterized in that: The fixed rod clamping assembly (3) includes a double-output shaft motor (31), a transmission assembly (32), a limit assembly (33) and an adjustable support assembly (34), wherein the double-output shaft motor (31) is fixedly mounted on the lower end surface of the mounting transverse plate (15), the transmission assembly (32) is connected to the mounting transverse plate (15), the first mounting ear (16), the double-output shaft motor (31) and the limit assembly (33), and the transmission assembly (32) is symmetrically arranged in two groups, and the limit assembly (33) and the adjustable support assembly (34) are arranged in four groups in a rectangular four-point manner, and the four groups of adjustable support assemblies (34) are respectively arranged on the four groups of limit assemblies (33).

5. The laser welding machine for sports equipment pipes according to claim 4, characterized in that: The transmission assembly (32) includes a transmission main shaft (321), a transmission countershaft (322), a first bevel gear (323), a second bevel gear (324), a worm (325) and a worm wheel (326). The two groups of transmission main shafts (321) are respectively rotatably connected to the transverse connecting seat at the lower end of the mounting horizontal plate (15). The inner ends of the two groups of transmission main shafts (321) are respectively fixedly connected to the two groups of output ends of the double-output shaft motor (31). The outer ends of the two groups of transmission main shafts (321) are respectively fixedly connected to the inner end faces of the two groups of first bevel gears (323). The left and right groups of the first bevel gears (323) are respectively meshed with the left and right groups of the second bevel gears (324). The left and right groups of the first bevel gears (323) are respectively meshed with the left and right groups of the second bevel gears (324). The second bevel gear (324) is fixedly mounted on the outer side walls of the two left and right groups of the transmission countershafts (322), respectively. The transmission countershaft (322) is rotatably connected to the longitudinal connecting seat at the lower end of the mounting cross plate (15). The transmission countershaft (322) at the left end is rotatably connected to the two left groups of first mounting ears (16), and the transmission countershaft (322) at the right end is rotatably connected to the two right groups of first mounting ears (16). The worm (325) is symmetrically arranged in two groups, which are fixedly mounted on the outer side walls at both ends of the transmission countershaft (322). The worm gear (326) is symmetrically arranged in two groups, which are meshed and connected with the two groups of worm gears (325) respectively. The worm gear (326) is connected to the limiting assembly (33).

6. The laser welding machine for sports equipment pipes according to claim 5, characterized in that: The limiting assembly (33) includes a connecting frame (331), a second slide rod (332), a first threaded rod (333) and a limiting pressure plate (334), the outer side wall of the connecting frame (331) is fixedly connected to the inner side wall of the mounting base (11), the second slide rod (332) is fixedly mounted on the inner side wall of the connecting frame (331), the upper end of the first threaded rod (333) is rotatably connected to the connecting frame (331), the lower ends of the four groups of first threaded rods (333) are respectively rotatably connected to the four groups of second mounting ears (17), the four groups of worm gears (326) are respectively fixedly mounted on the outer side walls of the lower ends of the four groups of first threaded rods (333), the limiting pressure plate (334) is slidably connected to the second slide rod (332), and the limiting pressure plate (334) is threadedly connected to the first threaded rod (333).

7. The laser welding machine for sports equipment pipes according to claim 6, characterized in that: The adjustable support assembly (34) includes a support plate (341), a third slide rod (342), a second threaded rod (343), a driving turntable (344) and a nut (345), wherein the upper end of the second threaded rod (343) is rotatably connected to the lower end surface of the support plate (341), the second threaded rod (343) is threadedly connected to the inner side of the lower end panel of the connecting frame (331), the lower end surface of the second threaded rod (343) is fixedly connected to the upper end surface of the driving turntable (344), the third slide rod (342) is arranged in two groups on the left and right, the upper end surface of the third slide rod (342) is fixedly connected to the lower end surface of the support plate (341), the third slide rod (342) is limitedly slidably connected to the lower end panel of the connecting frame (331), the nut (345) is threadedly connected to the second threaded rod (343), and the upper end surface of the nut (345) is in contact with the lower end surface of the connecting frame (331).

8. The laser welding machine for sports equipment pipes according to claim 6, characterized in that: A group of guide plates (35) and a group of positioning baffles (36) are fixedly installed on the inner side of the inner bottom surface of each group of the connecting frames (331). The inner side walls of the guide plates (35) are fixedly connected to the outer side walls of the positioning baffles (36). The setting direction of the guide plates (35) is gradually opened from the inside to the outside. The two groups of guide plates (35) on the front side cooperate to guide a group of fixed rods (6) and are blocked and positioned by the two groups of positioning baffles (36) on the front side. The two groups of guide plates (35) on the rear side cooperate to guide a group of fixed rods (6) and are blocked and positioned by the two groups of positioning baffles (36) on the rear side.

9. The laser welding machine for sports equipment pipes according to claim 1, characterized in that: The laser welding assembly (4) includes a linear module (41), a mounting plate (42), a robotic arm (43) and a laser welding head (44), wherein the linear module (41) is fixedly mounted on the inner top surface of the mounting top frame (12), the upper end surface of the mounting plate (42) is fixedly connected to the slider on the linear module (41), the lower end surface of the mounting plate (42) is fixedly connected to the upper end surface of the robotic arm (43), the laser welding head (44) is fixedly mounted on the output end of the robotic arm (43), and the millimeter wave radar (7) is fixedly mounted on the rear side wall of the turntable at the upper end of the robotic arm (43).

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