Numerical control automatic welding machine for butt joint of steel structure steel frame beam and purlin supporting plate

Abstract

The invention discloses a numerical control automatic welding machine for butt joint of a steel structure steel frame beam and a purlin supporting plate. The numerical control automatic welding machine comprises a longitudinal ground guide rail, a longitudinal moving guide rail, a program setting control cabinet, a welding machine body and a butt joint mechanism. The longitudinal moving guide rail structure is arranged on the longitudinal ground guide rail in a sliding mode. The longitudinal moving guide rail, the program setting control cabinet, the welding machine and the butt joint mechanism are all fixed to the longitudinal moving guide rail. The butt joint mechanism comprises an up-down main beam mechanism, a welding up-down moving sliding plate assembly, a transverse main beam mechanism and a feeding up-down moving sliding plate mechanism. According to the invention, manual lineation assembly welding is not needed, and numerical control automatic welding of deformed workpieces is really realized through numerical control and electronic profiling difference compensation; the laser electronic edge finding can quickly and accurately start a welding program according to the actual position of each workpiece; one machine with two guns shortens the welding time and improves the working efficiency; and common workers can operate without professional welders, so that the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to an automatic welding machine, in particular to a steel structure steel frame beam and purlin support plate butt joint numerical control automatic welding machine. BACKGROUND

[0002] At present, the whole process from placing the purlin support plate on the steel frame beam to completing the welding is manually operated. The process is to measure the interval distance of the purlin support plate first, then draw a line, manually spot weld, and then manually full weld. The whole process is complicated, time-consuming, low in efficiency, high in labor intensity, and there is a certain error in manual measurement. Some powerful enterprises use robots with visual scanning to weld such workpieces, but the disadvantage is that the size still needs to be measured manually, and the workpiece needs to be spot welded manually. The robot needs to scan before reaching each purlin support plate workpiece, and then can weld. This operation not only cannot save the cost of electric welders, but also increases the professional operators of the robot. It results in high investment cost, and the work efficiency is not improved. Due to the working principle of the robot with a welding gun, the actual welding efficiency cannot be improved. Especially in summer, the workshop temperature is high, and the welders must wear protective equipment, otherwise harmful rays and harmful gases will cause harm to people. Therefore, many enterprises urgently need a high-efficiency equipment to replace manual work. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a steel structure steel frame beam and purlin support plate butt joint numerical control automatic welding machine for automatically placing the purlin support plate on the specific position of the H-shaped beam, steel frame beam, roof beam and special beam in a steel structure production and manufacturing enterprise, so that the purlin support plate is automatically welded on the steel beam.

[0004] The steel structure steel frame beam and purlin support plate butt joint numerical control automatic welding machine is realized by the following technical scheme: comprising a longitudinal ground guide rail, a longitudinal moving guide rail, a program setting control cabinet, a welding machine and a butt joint mechanism.

[0005] The longitudinal moving guide rail structure is slidingly arranged on the longitudinal ground guide rail, and the longitudinal moving guide rail, the program setting control cabinet, the welding machine and the butt joint mechanism are fixed on the longitudinal moving guide rail.

[0006] As a preferred technical scheme, the butt joint mechanism comprises an upper and lower main beam mechanism, a welding upper and lower moving slide plate assembly, a transverse main beam mechanism and a feeding upper and lower moving slide plate mechanism.

[0007] The welding upper and lower moving slide plate assembly and the feeding upper and lower moving slide plate mechanism are both slidingly arranged on the upper and lower main beam mechanism, and the welding upper and lower moving slide plate assembly is located above the feeding upper and lower moving slide plate mechanism. The transverse main beam mechanism is installed on the welding upper and lower moving slide plate assembly, and the welding mechanism is fixed on the transverse main beam mechanism. The feeding mechanism is installed on the feeding upper and lower moving slide plate mechanism.

[0008] As a preferred technical scheme, the longitudinal ground guide rail comprises a guide rail fixing plate, a left guide rail, a longitudinal rack and a right guide rail;

[0009] The left guide rail and the right guide rail are installed on the left side and the right side above the guide rail fixing plate, and the longitudinal rack is fixed on the left guide rail.

[0010] The longitudinal moving guide rail comprises a platform box, a right pulley shaft, a right pulley, a servo drive motor, a longitudinal drive gear, a right clamping wheel, a left roller, a left roller shaft and a left clamping wheel; the right pulley is fixed on the right side of the platform box through the right pulley shaft, and the left roller is fixed on the left side of the platform box through the left roller shaft; the left and right sides of the left roller are respectively provided with the right clamping wheel and the left clamping wheel, and the right clamping wheel and the left clamping wheel are rotatably arranged on the platform box; the servo drive motor is installed on the platform box, and the output shaft of the servo drive motor is connected with the longitudinal drive gear through the platform box;

[0011] The platform box is slidably arranged on the left guide rail and the right guide rail of the longitudinal ground guide rail, and the left and right sides of the left guide rail are in contact with the right clamping wheel and the left clamping wheel, thereby playing a clamping guiding role; the top of the left guide rail is in contact with the left roller, and the top of the right guide rail is in contact with the pulley; the longitudinal drive gear is engaged with the longitudinal rack on the left guide rail, thereby driving the longitudinal moving guide rail to move along the longitudinal ground guide rail.

[0012] As a preferred technical scheme, the upper and lower main beam mechanism comprises a column base, a column profile, a ball screw and a servo motor.

[0013] The column profile is installed on the column base, and the front end of the column profile is installed with the up-down moving guide rail; the servo motor is installed on the top of the column profile through a servo motor support seat, and a coupling is installed on the output shaft of the servo motor; the up-down moving guide rail is fixed with a screw rod upper support seat and a screw rod end head fixing seat at the center of the two ends, respectively, and the ball screw is rotatably arranged on the screw rod upper support seat and the screw rod end head fixing seat; the servo motor is connected with the ball screw through the coupling.

[0014] As a preferred technical scheme, the welding up-down moving slide plate assembly comprises a welding up-down moving slide plate, an up-down moving slider, a wire feeder, a nut, and a feeding slide plate connecting guide rod; the up-down moving slider is arranged on the inner side of the welding up-down moving slide plate; the nut is arranged on the up-down moving slider, and the welding up-down moving slide plate is connected with the ball screw through the nut of the up-down moving slider; the wire feeder is installed on the back of the welding up-down moving slide plate, and the transverse main beam mechanism is installed on the front of the welding up-down moving slide plate; the feeding slide plate connecting guide rod is arranged on the side of the welding up-down moving slide plate and is connected with the feeding up-down moving slide plate mechanism.

[0015] As a preferred technical scheme, the transverse main beam mechanism comprises a transverse main beam and a transverse guide rail.

[0016] The lateral guide rail is installed on both sides below the lateral main beam, the lateral rack is installed in the center of the lateral guide rail, and the welding mechanism is slidably arranged below the lateral main beam through the lateral guide rail and slidably assisted by the lateral rack.

[0017] As a preferred technical solution, the welding mechanism comprises a left welding gun movement mechanism and a right welding gun movement mechanism, and the left welding gun movement mechanism and the right welding gun movement mechanism are slidably arranged on the lateral guide rail and in contact with the lateral rack below the lateral main beam.

[0018] As a preferred technical solution, the feeding up-and-down moving sliding plate mechanism comprises a feeding up-and-down moving sliding plate and a feeding up-and-down moving sliding block, the feeding up-and-down moving sliding block is fixed on the feeding up-and-down moving sliding plate, and the feeding up-and-down moving sliding block is connected with the up-and-down moving guide rail; the feeding mechanism is installed on the feeding up-and-down moving sliding plate.

[0019] As a preferred technical solution, the feeding mechanism comprises a feeding advance-and-retreat guide rail seat, a feeding cylinder, a feeding moving sliding plate, a feeding positioning mechanism, a feeding support arm, and a feeding lateral guide rail.

[0020] The feeding advance-and-retreat guide rail seat is arranged on the feeding up-and-down moving sliding plate, and the feeding moving sliding plate is slidably arranged on the feeding advance-and-retreat guide rail seat; one end of the feeding up-and-down moving sliding plate is provided with the feeding cylinder, and the output shaft of the feeding cylinder is connected with the feeding moving sliding plate, thereby driving the feeding moving sliding plate to move; one end of the feeding support arm is fixed on the feeding moving sliding plate, and the lower end of the feeding support arm is provided with the feeding lateral guide rail, and the feeding positioning mechanism is slidably arranged on the feeding lateral guide rail.

[0021] As a preferred technical solution, the feeding positioning mechanism comprises a tool fixing plate, an H-shaped steel clamping cylinder, and an H-shaped steel width adjusting sliding block.

[0022] The H-shaped steel clamping cylinder is fixed on one side below the tool fixing plate, and the output shaft of the H-shaped steel clamping cylinder is provided with an H-shaped steel clamping wheel; the tool fixing plate is fixed with a first lateral free moving sliding block and a second lateral free moving sliding block on both sides above the tool fixing plate, and the tool fixing plate is provided with a first workpiece adsorption magnet and a second workpiece adsorption magnet on both sides of the front end of the tool fixing plate; a guide rail damping rod is arranged between the first lateral free moving sliding block and the second lateral free moving sliding block, and the guide rail damping rod corresponds to the position of the feeding lateral guide rail; a first parallel moving pulley and a second parallel moving pulley are arranged on both sides of the center below the tool fixing plate; the H-shaped steel width adjusting sliding block is arranged below the other side of the tool fixing plate, and the H-shaped steel width adjusting sliding block is fixed with an H-shaped steel positioning wheel below the H-shaped steel width adjusting sliding block; a workpiece positioning block is arranged on the other side above the tool fixing plate.

[0023] As a preferred technical scheme, the left welding gun movement mechanism and the right welding gun movement mechanism each comprise a welding gun transverse movement slider, a movement slider plate, a servo deceleration motor, a transverse drive gear, a welding gun up-down profiling guide rail, an up-down profiling slider, a welding gun rotation shaft base, a welding gun upper automatic profiling switch, an up-down position sensing fork, a welding gun lower automatic profiling switch, a welding gun rotation motor, a welding gun upward stop plate, a welding gun upward stop block, a welding gun center adjustment slider base, a welding gun center movement slider, a welding gun, a front-rear up-down profiling connecting plate, an electronic profiler, an up-down profiling arm, a welding gun front-rear profiling arm, a micro air cylinder, a starting bolt, a workpiece position laser scanner, a front-rear profiling adjustment plate, a front-rear profiling wheel and an up-down profiling bull's eye bearing.

[0024] The welding gun transverse movement sliders are mounted at two ends of the movement slider plate and connected with the transverse guide rails of the transverse main beam mechanism.

[0025] The welding gun up-down profiling guide rail is mounted at the front end of the movement slider plate, and the welding gun upper automatic profiling switch and the welding gun lower automatic profiling switch are mounted at the side surface of the welding gun up-down profiling guide rail.

[0026] The welding gun center movement slider is arranged below the welding gun center adjustment slider base, and the front-rear up-down profiling connecting plate is arranged on the welding gun center movement slider.

[0027] The up-down profiling arm and the welding gun front-rear profiling arm are fixed to the bottom of the electronic profiler, the micro air cylinder is arranged on the front-rear profiling adjustment plate, and the starting bolt is arranged below the micro air cylinder.

[0028] The welding gun is fixedly arranged at the back of the welding gun center movement slider, and the up-down profiling bull's eye bearing is arranged on the welding gun.

[0029] The present application has the following advantages:

[0030] The application does not use man to draw line group welding, and the numerical control and the electronic profile difference compensation truly realize the numerical control automatic welding of the deformed workpiece; the laser electronic patrol edge can start the welding program quickly and accurately according to the actual position of each workpiece; one machine with double guns shortens the welding time and improves the work efficiency; ordinary workers can operate without professional welders, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0033] Figure 2 It is a schematic diagram of the guide rail structure of the present application;

[0034] Figure 3 It is a schematic diagram of the docking mechanism structure of the present application;

[0035] Figure 4 It is a schematic diagram of the feeding positioning mechanism structure of the present application;

[0036] Figure 5 It is a schematic diagram of the welding gun movement mechanism structure of the present application.

[0037] Explanation of reference signs:

[0038] 1, longitudinal ground rail; 2, longitudinal moving rail; 3, program setting control cabinet; 4, welding machine; 5, upper and lower main beam mechanism; 6, welding upper and lower moving slide assembly; 7, transverse main beam mechanism; 8, feeding upper and lower moving slide mechanism; 9, feeding advance and retreat rail seat; 10, feeding cylinder; 11, feeding moving slide; 12, right welding torch movement mechanism; 13, left welding torch movement mechanism; 14, feeding positioning mechanism; 15, feeding support arm; 16, feeding transverse rail; 1.1, rail fixing plate; 1.2, left rail; 1.3, longitudinal rack; 1.4, right rail; 2.1, platform box; 2.2, right pulley shaft; 2.3, right pulley; 2.4, servo drive motor; 2.5, longitudinal drive gear; 2.6, right clamping wheel; 2.7, left roller; 2.8, left roller shaft; 2.9, left clamping wheel; 5.1, column base; 5.2, column profile; 5.3, upper and lower moving rail; 5.4, screw rod end head fixing seat; 5.5, ball screw; 5.6, screw rod upper support seat; 5.7, coupling; 5.8, servo motor seat; 5.9, servo motor; 6.1, welding upper and lower moving slide; 6.2, upper and lower moving slide block; 6.3, wire feeder; 6.4, wire nut; 6.5, feeding slide connecting guide rod; 7.1, transverse main beam; 7.2, transverse rack; 7.3, transverse rail; 8.1, feeding upper and lower moving slide; 8.2, feeding upper and lower moving slide block; 14.1, tool fixing plate; 14.2, H-shaped steel clamping cylinder; 14.3, H-shaped steel clamping wheel; 14.4, first transverse free moving slide block; 14.5, first parallel moving pulley; 14.6, first workpiece adsorption magnet; 14.7, rail damping rod; 14.8, second parallel moving pulley; 14.9, second workpiece adsorption magnet; 14.10, workpiece positioning block; 14.11, second transverse free moving slide block; 14.12, H-shaped steel width adjusting slide block; 14.13, H-shaped steel positioning wheel; 12.1, welding torch transverse moving slide block; 12.2, moving slide; 12.3, servo reduction motor; 12.4, transverse drive gear; 12.5, welding torch upper and lower profiling rail; 12.6, upper and lower profiling slide block; 12.7, welding torch rotating shaft seat; 12.8, welding torch upper automatic profiling switch; 12.9, upper and lower position sensing fork; 12.10, welding torch lower automatic profiling switch; 12.11, welding torch rotating motor;

[0039] 12.12 Welding torch rising baffle; 12.13 Welding torch rising stop block; 12.14 Welding torch center adjustment slider seat; 12.15 Welding torch center moving slider; 12.16 Welding torch; 12.17 Front and rear upper and lower contouring connecting plates; 12.18 Electronic contouring device; 12.19 Upper and lower contouring arms; 12.20 Welding torch front and rear contouring arms; 12.21 Miniature cylinder; 12.22 Starting pin; 12.23 Workpiece position laser scanner; 12.24 Front and rear contouring adjustment plates; 12.25 Front and rear contouring wheels; 12.26 Upper and lower contouring bullseye bearings. Detailed Implementation

[0040] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0041] like Figure 1 As shown, the present invention provides a CNC automatic welding machine for connecting steel structure steel frame beams and purlin support plates, including a longitudinal ground guide rail 1, a longitudinal moving guide rail 2, a program setting control cabinet 3, a welding machine 4, and a docking mechanism;

[0042] The longitudinal moving guide rail 2 is slidably mounted on the longitudinal ground guide rail 1. The longitudinal moving guide rail 2, the program setting control cabinet 3, the welding machine 4, and the docking mechanism are all fixed on the longitudinal moving guide rail 2.

[0043] In this embodiment, the docking mechanism includes an upper and lower main beam mechanism 5, a welding upper and lower moving slide plate assembly 6, a transverse main beam mechanism 7, and a feeding upper and lower moving slide plate mechanism 8.

[0044] The welding vertical sliding plate assembly 6 and the feeding vertical sliding plate mechanism 8 are both slidably mounted on the upper and lower main beam mechanism 5, and the welding vertical sliding plate assembly 6 is located above the feeding vertical sliding plate mechanism 8; the transverse main beam mechanism 7 is mounted on the welding vertical sliding plate assembly 6, and the welding mechanism is fixed on the transverse main beam mechanism 7; the feeding mechanism is mounted on the feeding vertical sliding plate mechanism 8.

[0045] like Figure 2 As shown, the longitudinal ground guide rail includes a guide rail fixing plate 1.1, a left guide rail 1.2, a longitudinal rack 1.3, and a right guide rail 1.4;

[0046] The left guide rail 1.2 and the right guide rail 1.4 are installed on the left and right sides above the guide rail fixing plate, and the longitudinal rack 1.3 is fixed on the left guide rail 1.2;

[0047] The longitudinal moving guide rail comprises a platform box 2.1, a right pulley shaft 2.2, a right pulley 2.3, a servo drive motor 2.4, a longitudinal drive gear 2.5, a right clamping wheel 2.6, a left roller 2.7, a left roller shaft 2.7 and a left clamping wheel 2.9; the right pulley 2.3 is fixed to the right side of the platform box through the right pulley shaft 2.2, and the left roller 2.7 is fixed to the left side of the platform box 2.1 through the left roller shaft; the left roller 2.7 is provided with the right clamping wheel 2.6 and the left clamping wheel 2.9 on the two sides respectively, and the right clamping wheel 2.6 and the left clamping wheel 2.9 are rotatably arranged on the platform box; the servo drive motor 2.4 is installed on the platform box, and the output shaft of the servo drive motor 2.4 is connected with the longitudinal drive gear 2.5 through the platform box;

[0048] The platform box is slidably arranged on the left guide rail and the right guide rail of the longitudinal ground guide rail, and the two side surfaces of the left guide rail are in contact with the right clamping wheel 2.6 and the left clamping wheel 2.9, which plays a clamping guiding role; the top of the left guide rail is in contact with the left roller 2.7, and the top of the right guide rail is in contact with the pulley; the longitudinal drive gear 2.5 is engaged with the longitudinal rack on the left guide rail, thereby driving the longitudinal moving guide rail to move along the longitudinal ground guide rail.

[0049] As shown in Figure 3 The upper and lower beam mechanism comprises a column base 5.1, a column profile 5.2, a ball screw 5.5 and a servo motor 5.9.

[0050] The column profile 5.2 is installed on the column base 5.1, and the front end of the column profile 5.2 is installed with an up-down moving guide rail 5.3; the servo motor 5.9 is installed on the top of the column profile 5.2 through a servo motor 5.9 support seat, and a coupling 5.7 is installed on the output shaft of the servo motor 5.9; the up-down moving guide rail 5.3 is fixed with a screw rod upper support seat 5.6 and a screw rod end head fixing seat 5.4 at the center of the two ends respectively, and the ball screw 5.5 is rotatably arranged on the screw rod upper support seat 5.6 and the screw rod end head fixing seat 5.4; the servo motor 5.9 is connected with the ball screw 5.5 through the coupling 5.7.

[0051] In this embodiment, the welding up-down moving slide plate assembly comprises a welding up-down moving slide plate 6.1, an up-down moving slide block 6.2, a wire feeder 6.3, a nut 6.4 and a feeding slide plate connecting guide rod 6.5; the up-down moving slide block 6.2 is arranged on the inner side of the welding up-down moving slide plate; the up-down moving slide block 6.2 is provided with the nut 6.4, and the welding up-down moving slide plate is connected with the ball screw through the nut 6.4 of the up-down moving slide block 6.2; the wire feeder 6.3 is installed on the back of the welding up-down moving slide plate, and the transverse beam mechanism is installed on the front of the welding up-down moving slide plate; the feeding slide plate connecting guide rod 6.5 is arranged on the side of the welding up-down moving slide plate and connected with the feeding up-down moving slide plate mechanism.

[0052] In this embodiment, the transverse girder mechanism includes a transverse girder 7.1 and a transverse guide rail 7.3;

[0053] The transverse guide rail 7.3 is installed on both sides of the transverse girder 7.1, and a transverse rack 7.2 is installed in the center of the transverse guide rail 7.3. The welding mechanism is slidably arranged below the transverse girder through the transverse guide rail 7.3, and the welding mechanism is assisted to slide through the transverse rack 7.2.

[0054] As shown in Figure 5 The welding mechanism includes a left welding gun movement mechanism 13 and a right welding gun movement mechanism 12, and the left welding gun movement mechanism 13 and the right welding gun movement mechanism 12 are slidably arranged on the transverse guide rail and in contact with the transverse rack below the transverse girder.

[0055] In this embodiment, the feeding up-and-down moving slide plate mechanism includes a feeding up-and-down moving slide plate 8.1 and a feeding up-and-down moving slide block 8.2. The feeding up-and-down moving slide block 8.2 is fixed to the feeding up-and-down moving slide plate, and the feeding up-and-down moving slide block 8.2 is connected with the up-and-down moving guide rail. The feeding mechanism is installed on the feeding up-and-down moving slide plate.

[0056] In this embodiment, the feeding mechanism includes a feeding advance-and-retreat guide rail seat 9, a feeding cylinder 10, a feeding moving slide plate 11, a feeding positioning mechanism 14, a feeding support arm 15, and a feeding transverse guide rail 16.

[0057] The feeding advance-and-retreat guide rail seat 9 is arranged on the feeding up-and-down moving slide plate, and the feeding moving slide plate 11 is slidably arranged on the feeding advance-and-retreat guide rail seat 9. One end of the feeding up-and-down moving slide plate is provided with the feeding cylinder 10, and the output shaft of the feeding cylinder 10 is connected with the feeding moving slide plate 11, thereby driving the feeding moving slide plate 11 to move. One end of the feeding support arm 15 is fixed to the feeding moving slide plate 11, and the lower end of the feeding support arm 15 is provided with the feeding transverse guide rail 16, and the feeding positioning mechanism 14 is slidably arranged on the feeding transverse guide rail 16.

[0058] In this embodiment, the feeding positioning mechanism includes a tool fixing plate 14.1, an H-shaped steel clamping cylinder 14.2, and an H-shaped steel width adjusting slide block 14.12.

[0059] The H-beam clamping cylinder 14.2 is fixed to one side below the tooling fixing plate, and an H-beam clamping wheel 14.3 is mounted on the output shaft of the H-beam clamping cylinder 14.2; a first lateral free-moving slider 14.4 and a second lateral free-moving slider 14.11 are fixed on both sides above the tooling fixing plate, and a first workpiece adsorption magnet 14.9 and a second workpiece adsorption magnet 14.9 are respectively mounted on both sides of the front end of the tooling fixing plate; the first lateral free-moving slider 14.4 and the second lateral free-moving slider 14.11... A guide rail damping rod 14.7 is installed between the two sides of the tooling fixing plate, and the position of the guide rail damping rod 14.7 corresponds to that of the feeding transverse guide rail; a first parallel moving pulley 14.8 and a second parallel moving pulley 14.8 are respectively installed on both sides of the lower center of the tooling fixing plate; the H-beam width adjusting slider 14.12 is installed on the other side of the tooling fixing plate, and an H-beam positioning wheel 14.13 is fixed below the H-beam width adjusting slider 14.12; a workpiece positioning block 14.10 is installed on the other side of the tooling fixing plate.

[0060] In this embodiment, both the left and right welding torch motion mechanisms include a welding torch lateral movement slider 12.1, a moving slide plate 12.2, a servo reduction motor 12.3, a lateral drive gear 12.4, welding torch upper and lower contour guide rails 12.5, upper and lower contour sliders 12.6, welding torch rotation shaft seat 12.7, welding torch upper automatic contour switch 12.8, upper and lower position sensing forks 12.9, welding torch lower automatic contour switch 12.10, and welding torch rotation motor.

[0061] 12.11 Welding torch rising baffle; 12.12 Welding torch rising stop; 12.13 Welding torch center adjustment slider seat; 12.14 Welding torch center moving slider; 12.15 Welding torch; 12.16 Front and rear upper and lower contouring connecting plates; 12.17 Electronic contouring device; 12.18 Upper and lower contouring arms; 12.19 Welding torch front and rear contouring arms; 12.20 Workpiece position laser scanner; 12.23 and front and rear contouring adjustment plates; 12.24;

[0062] Both ends of the movable slide plate 12.2 are equipped with welding gun transverse moving sliders 12.1, and the welding gun transverse moving sliders 12.1 are connected to the transverse guide rail of the transverse main beam mechanism; the servo reduction motor 12.3 is installed below the movable slide plate 12.2, the output shaft of the servo reduction motor 12.3 passes through the movable slide plate 12.2 and is connected to a transverse drive gear 12.4, and the transverse drive gear 12.4 meshes with the transverse rack of the transverse main beam mechanism, thereby driving the movable slide plate 12.2 to move back and forth;

[0063] The front end of the mobile slide plate 12.2 is provided with a welding gun up-down profiling guide rail 12.5, and the side of the welding gun up-down profiling guide rail 12.5 is provided with a welding gun up automatic profiling switch 12.8 and a welding gun down automatic profiling switch 12.10; the welding gun up-down profiling guide rail 12.5 is slidably provided with an up-down profiling slider 12.6, and a welding gun rotating shaft seat 12.7 is fixed to the up-down profiling slider 12.6; the up-down position sensing fork 12.9 is fixed to the side of the welding gun up-down profiling guide rail 12.5 and corresponds to the positions of the welding gun up automatic profiling switch 12.8 and the welding gun down automatic profiling switch 12.10; the side of the lower end of the welding gun up-down profiling guide rail 12.5 is provided with a welding gun upward stop block 12.13, and the side of the welding gun rotating shaft seat 12.7 is provided with a welding gun upward stop plate 12.12 corresponding to the welding gun upward stop block 12.13; the welding gun rotating shaft seat 12.7 is provided with a welding gun rotating motor 12.11, and the output shaft of the welding gun rotating motor 12.11 is connected with a welding gun center adjusting slider seat 12.14 through the welding gun rotating shaft seat 12.7;

[0064] The welding gun center mobile slider 12.15 is arranged below the welding gun center adjusting slider seat 12.14, the front-rear-up-down profiling connecting plate 12.17 is arranged on the welding gun center mobile slider 12.15, and the electronic profiler 12.18 is fixed below the welding gun center mobile slider 12.15;

[0065] The up-down profiling arm 12.19 and the welding gun front-rear profiling arm 12.20 are fixed to the bottom of the electronic profiler 12.18, the micro cylinder 12.21 is arranged on the front-rear profiling adjusting plate 12.24, and the starting bolt 12.22 is arranged below the micro cylinder 12.21; the workpiece position laser scanner 12.23 is arranged below the starting bolt 12.22; the front-rear profiling wheel 12.25 is arranged on the front-rear profiling adjusting plate 12.24;

[0066] The welding gun 12.16 is fixedly arranged on the back of the welding gun center mobile slider 12.15, and the up-down profiling bull eye bearing 12.26 is arranged on the welding gun 12.16.

[0067] The working principle is as follows:

[0068] The device is arranged on two ground rails, the left ground rail is provided with a rack, and the longitudinal moving platform drives the program control cabinet to make the welding machine up-down beam mechanism move longitudinally along the track;

[0069] The welding mobile slide plate moves up and down along the up and down main beam mechanism, the right welding torch mechanism and the left welding torch mechanism move horizontally along the guide rail on the transverse main beam, and the feeding mobile slide plate drives the feeding support arm to move forward and backward. The purlin support plate is placed on the positioning magnet of the feeding positioning mechanism and aligned with the transverse positioning block. Under the action of the holding cylinder, the whole feeding mechanism freely moves on the feeding transverse guide rail according to the actual position of the profiled steel.

[0070] The working principle of the right welding torch mechanism;

[0071] The welding torch mobile slide block drives the welding torch to move horizontally under the action of the horizontal drive gear. The welding torch up and down mechanism moves up and down under the action of the welding torch rising block and the welding torch rising plate due to its own weight. When the whole lifting mechanism is lowered to the position according to the program, the up and down profiled bearing contacts the workpiece. If the up and down position sensing plug does not separate from the welding torch down profiled switch;

[0072] The sensing area system of the welding torch down automatic profiled switch will automatically lower to the position where the up and down position sensing plug separates from the welding torch down profiled switch and stop;

[0073] When the position of the workpiece is too high during welding, it will enter the welding torch up profiled switch

[0074] The sensing area system will automatically rise to stop and always maintain the set distance between the welding torch and the workpiece.

[0075] The welding torch mechanism moves 350 degrees under the action of the welding torch rotating motor to meet the adjustment of the longitudinal weld, transverse weld and welding torch angle.

[0076] Welding torch front and back profiled compensation. When the welding torch reaches the set position according to the program, the forward profiled wheel contacts the workpiece. There are front and back profiled adjustment plates and switches in the electronic profiled device to control the forward and backward movement or static state of the welding torch. For example, the longitudinal weld system will start the horizontal drive motor to move horizontally to compensate. The transverse weld system will drive the longitudinal mobile platform servo motor to move longitudinally to compensate, so that the welding torch always runs on the actual weld of the workpiece.

[0077] Workpiece position laser scanner;

[0078] Because the device is equipped with a support plate feeding positioning mechanism, the placement of the profiled beam and the support plate can ensure the accuracy of the position. However, the position of the whole workpiece and the welding equipment is not the same, so the transverse position scanning is needed to determine the actual position. After the support plate is sent to the position by the feeding positioning mechanism, the laser scanner is perpendicular to the workpiece. The left welding torch mechanism moves to the left and the right welding torch mechanism moves to the right. When the welding torch moves to the left and right sides of the laser scanner, the system starts the automatic welding program. The welding torch will move according to the program to the position required for welding.

[0079] Because the laser scanner is too close to the welding gun and the environment is too poor, the laser scanner is closed, and when scanning is needed, a miniature cylinder moves to open the pneumatic bolt, and after scanning, the pneumatic bolt is inserted to avoid dust from entering the laser scanner.

[0080] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates, characterized in that: It includes a longitudinal ground guide rail (1), a longitudinal moving guide rail (2), a program setting control cabinet (3), a welding machine (4), and a docking mechanism; The longitudinal moving guide rail (2) is slidably mounted on the longitudinal ground guide rail (1). The longitudinal moving guide rail (2), the program setting control cabinet (3), the welding machine (4) and the docking mechanism are all fixed on the longitudinal moving guide rail (2).

2. The CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates according to claim 1, characterized in that: The docking mechanism includes an upper and lower main beam mechanism (5), a welding upper and lower moving slide plate assembly (6), a transverse main beam mechanism (7), and a feeding upper and lower moving slide plate mechanism (8); The welding up-and-down moving slide plate assembly (6) and the feeding up-and-down moving slide plate mechanism (8) are both slidably mounted on the upper and lower main beam mechanism (5), and the welding up-and-down moving slide plate assembly (6) is located above the feeding up-and-down moving slide plate mechanism (8); the transverse main beam mechanism (7) is mounted on the welding up-and-down moving slide plate assembly (6), and the welding mechanism is fixed on the transverse main beam mechanism (7); the feeding mechanism is mounted on the feeding up-and-down moving slide plate mechanism (8).

3. The CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates according to claim 1, characterized in that: The longitudinal ground guide rail includes a guide rail fixing plate (1.1), a left guide rail (1.2), a longitudinal rack (1.3), and a right guide rail (1.4); The left guide rail (1.2) and the right guide rail (1.4) are installed on the left and right sides above the guide rail fixing plate, and the longitudinal rack (1.3) is fixed on the left guide rail (1.2); The longitudinal moving guide rail includes a platform housing (2.1), a right pulley shaft (2.2), a right pulley (2.3), a servo drive motor (2.4), a longitudinal drive gear (2.5), a right clamping wheel (2.6), a left roller (2.7), a left roller (2.7) shaft, and a left clamping wheel (2.9). The right pulley (2.3) is fixed to the right side of the platform housing via the right pulley shaft (2.2), and the left roller (2.7) is fixed to the left side of the platform housing (2.1) via the left roller shaft. The left roller (2.7) has a right clamping wheel (2.6) and a left clamping wheel (2.9) on its two sides, and the right clamping wheel (2.6) and the left clamping wheel (2.9) are rotatably mounted on the platform housing. The platform housing is equipped with a servo drive motor (2.4), and the output shaft of the servo drive motor (2.4) passes through the platform housing and is connected to the longitudinal drive gear (2.5). The platform box is slidably mounted on the left and right guide rails of the longitudinal ground guide rail, and the two sides of the left guide rail are in contact with the right clamping wheel (2.6) and the left clamping wheel (2.9) to provide clamping and guidance; the top of the left guide rail is in contact with the left roller (2.7), and the top of the right guide rail is in contact with the pulley; the longitudinal drive gear (2.5) meshes with the longitudinal rack on the left guide rail, thereby driving the longitudinal moving guide rail to move along the longitudinal ground guide rail.

4. The CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates according to claim 1, characterized in that: The upper and lower main beam mechanism includes a column base (5.1), a column profile (5.2), a ball screw (5.5), and a servo motor (5.9); The column profile (5.2) is mounted on the column base (5.1), and the front end of the column profile (5.2) is equipped with an up-and-down moving guide rail (5.3); the servo motor (5.9) is mounted on the top of the column profile (5.2) through a servo motor (5.9) support seat, and a coupling (5.7) is mounted on the output shaft of the servo motor (5.9); the two ends of the up-and-down moving guide rail (5.3) are respectively fixed with a lead screw upper support seat (5.6) and a lead screw end fixing seat (5.4), and the ball screw (5.5) is rotatably mounted on the lead screw upper support seat (5.6) and the lead screw end fixing seat (5.4); the servo motor (5.9) is connected to the ball screw (5.5) through the coupling (5.7).

5. The CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates according to claim 1, characterized in that: The welding vertical moving slide assembly includes a welding vertical moving slide (6.1), a vertical moving slider (6.2), a wire feeder (6.3), a wire nut (6.4), and a feeding slide connecting guide rod (6.5). The vertical moving slider (6.2) is located inside the welding vertical moving slide. The vertical moving slider (6.2) is provided with a wire nut (6.4), and the welding vertical moving slide is connected to the ball screw through the wire nut (6.4) of the vertical moving slider (6.2). The wire feeder (6.3) is installed on the back of the welding vertical moving slide, and the transverse main beam mechanism is installed on the front of the welding vertical moving slide. The feeding slide connecting guide rod (6.5) is located on the side of the welding vertical moving slide and is connected to the feeding vertical moving slide mechanism.

6. The CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates according to claim 1, characterized in that: The transverse main beam mechanism includes a transverse main beam (7.1) and a transverse guide rail (7.3); A transverse guide rail (7.3) is installed on both sides below the transverse main beam (7.1), and a transverse rack (7.2) is installed in the center of the transverse guide rail (7.3). The welding mechanism is slidably set below the transverse main beam through the transverse guide rail (7.3) and is assisted in sliding by the transverse rack (7.2).

7. The CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates according to claim 1, characterized in that: The welding mechanism includes a left welding torch movement mechanism (13) and a right welding torch movement mechanism (12), and both the left welding torch movement mechanism (13) and the right welding torch movement mechanism (12) are slidably mounted on the transverse guide rail and are in contact with the transverse rack below the transverse main beam.

8. The CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates according to claim 1, characterized in that: The feeding up-and-down moving slide mechanism includes a feeding up-and-down moving slide (8.1) and a feeding up-and-down moving slider (8.2). The feeding up-and-down moving slider (8.2) is fixed on the feeding up-and-down moving slide and is connected to the up-and-down moving guide rail. The feeding mechanism is installed on the feeding up-and-down moving slide.

9. The CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates according to claim 1, characterized in that: The feeding mechanism includes a feeding infeed guide rail seat (9), a feeding cylinder (10), a feeding moving slide plate (11), a feeding positioning mechanism (14), a feeding support arm (15), and a feeding transverse guide rail (16). The feeding guide rail seat (9) is set on the feeding up and down sliding plate, and the feeding sliding plate (11) is slidably set on the feeding guide rail seat (9); a feeding cylinder (10) is set at one end of the feeding up and down sliding plate, and the output shaft of the feeding cylinder (10) is connected to the feeding sliding plate (11), thereby driving the feeding sliding plate (11) to move; one end of the feeding support arm (15) is fixed on the feeding sliding plate (11), and a feeding transverse guide rail (16) is installed at the lower end of the feeding support arm (15), and the feeding positioning mechanism (14) is slidably set on the feeding transverse guide rail (16).

10. The CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates according to claim 1, characterized in that: The feeding and positioning mechanism includes a tooling fixing plate (14.1), an H-beam clamping cylinder (14.2), and an H-beam width adjusting slider (14.12); The H-beam clamping cylinder (14.2) is fixed to one side below the tooling fixing plate, and an H-beam clamping wheel (14.3) is installed on the output shaft of the H-beam clamping cylinder (14.2); a first transverse free-moving slider (14.4) and a second transverse free-moving slider (14.11) are fixed on both sides above the tooling fixing plate, and a first workpiece adsorption magnet (14.9) and a second workpiece adsorption magnet (14.9) are respectively installed on both sides of the front end of the tooling fixing plate; the first transverse free-moving slider (14.4) and the second transverse free-moving slider (14.11) 1) A guide rail damping rod (14.7) is installed between them, and the guide rail damping rod (14.7) is positioned corresponding to the feed transverse guide rail; a first parallel moving pulley (14.8) and a second parallel moving pulley (14.8) are respectively installed on both sides of the lower center of the tooling fixing plate; the H-beam width adjusting slider (14.12) is installed on the other side of the tooling fixing plate, and an H-beam positioning wheel (14.13) is fixed below the H-beam width adjusting slider (14.12); a workpiece positioning block (14.10) is installed on the other side of the tooling fixing plate.

11. The CNC automatic welding machine for butt welding of steel structure steel frame beams and purlin support plates according to claim 1, characterized in that: Both the left and right welding torch motion mechanisms include a welding torch lateral movement slider (12.1), a moving slide plate (12.2), a servo reduction motor (12.3), a lateral drive gear (12.4), welding torch upper and lower contour guide rails (12.5), upper and lower contour sliders (12.6), welding torch rotation shaft seat (12.7), welding torch upper automatic contour switch (12.8), upper and lower position sensing forks (12.9), welding torch lower automatic contour switch (12.10), and welding torch rotation motor. (12.11), welding torch rising baffle (12.12), welding torch rising stop block (12.13), welding torch center adjustment slider seat (12.14), welding torch center moving slider (12.15), welding torch (12.16), front and rear upper and lower contouring connecting plates (12.17), electronic contourer (12.18), upper and lower contouring arms (12.19), welding torch front and rear contouring arms (12.20), workpiece position laser scanner (12.23), and front and rear contouring adjustment plates (12.24); Both ends of the movable slide plate (12.2) are equipped with welding gun transverse moving sliders (12.1), and the welding gun transverse moving sliders (12.1) are connected to the transverse guide rail of the transverse main beam mechanism; the servo reduction motor (12.3) is installed below the movable slide plate (12.2), the output shaft of the servo reduction motor (12.3) passes through the movable slide plate (12.2) and is connected to a transverse drive gear (12.4), and the transverse drive gear (12.4) meshes with the transverse rack of the transverse main beam mechanism, thereby driving the movable slide plate (12.2) to move back and forth; The front end of the movable slide plate (12.2) is equipped with a welding torch upper and lower contour guide rail (12.5), and the side of the welding torch upper and lower contour guide rail (12.5) is equipped with an automatic contour switch (12.8) for the welding torch and an automatic contour switch (12.10) for the welding torch lower; an upper and lower contour slider (12.6) is slidably arranged on the welding torch upper and lower contour guide rail (12.5), and the welding torch rotating shaft seat (12.7) is fixed on the upper and lower contour slider (12.6); the upper and lower position sensing fork (12.9) is fixed to the side of the welding torch upper and lower contour guide rail (12.5) and is connected to the automatic contour switch (12.10) for the welding torch. The positions of 12.8) and the automatic contouring switch (12.10) under the welding torch correspond to each other; a welding torch rising stop (12.13) is provided on the lower side of the upper and lower contouring guide rails (12.5) of the welding torch, and a welding torch rising baffle (12.12) corresponding to the welding torch rising stop (12.13) is provided on the side of the welding torch rotating shaft seat (12.7); a welding torch rotating motor (12.11) is installed on the welding torch rotating shaft seat (12.7), and the output shaft of the welding torch rotating motor (12.11) passes through the welding torch rotating shaft seat (12.7) and is connected to the welding torch center adjustment slider seat (12.14); The welding torch center moving slider (12.15) is located below the welding torch center adjusting slider seat (12.14), the front and rear upper and lower contouring connecting plates (12.17) are located on the welding torch center moving slider (12.15), and the electronic contouring device (12.18) is fixed below the welding torch center moving slider (12.15). The upper and lower contouring arms (12.19) and the front and rear contouring arms (12.20) of the welding torch are fixed to the bottom of the electronic contouring device (12.18). The miniature cylinder (12.21) is mounted on the front and rear contouring adjustment plates (12.24), and the starting pin (12.22) is located below the miniature cylinder (12.21). A workpiece position laser scanner (12.23) is installed below the starting pin (12.22). Front and rear contouring wheels (12.25) are mounted on the front and rear contouring adjustment plates (12.24). The welding torch (12.16) is fixedly mounted on the back of the central moving slider (12.15) of the welding torch, and upper and lower conformal bullseye bearings (12.26) are installed on the welding torch (12.16).

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