A CNC four-head automatic corner assembly production line

Abstract

The present invention discloses a CNC four-head automatic corner assembly production line, including a corner assembly machine, a hinge punching machine, a discharge platform, an assembly conveying platform, a control system, and a hydraulic system. The corner assembly machine, the hinge punching machine, the discharge platform, and the assembly conveying platform are sequentially arranged along the transmission direction of doors and windows to form an assembly line. Multiple assembly conveying platforms can be sequentially arranged. A control system and a hydraulic system are arranged on one side of the corner assembly machine. The present invention changes the current situation of manual loading, manual unloading, and manual process transmission. The single-head single-angle corner assembly punching and riveting processing is automatic loading and automatic unloading. Four heads simultaneously complete the corner assembly punching and riveting processing of the four corners, automatic drilling, and automatic transmission. In the process of mass production and processing, the labor intensity of personnel is reduced and the production efficiency is improved. It is a CNC four-head automatic corner assembly production line with good processing reliability and high processing precision.

Description

Technical Field

[0001] The invention belongs to the field of aluminum alloy door and window equipment, and in particular relates to a CNC four-head automatic corner assembly production line. Background Art

[0002] The processing process of aluminum alloy doors and windows in the existing technology is mainly: profile sawing → frame and sash milling / drilling → frame assembly → angle assembly → frame and sash drilling → installation of hardware / seals. Each process is an independent workstation and is transported by a material cart. Among them, the angle assembly process is to put the angle code into the cavity of two 45° profiles, assemble them into a 90° angle, manually load them, put them on the single-head angle assembly machine, and manually unload them after four times of angle assembly punching and riveting. The single-head single-angle angle assembly punching and riveting processing process not only has low production efficiency, but also has excessive labor intensity.

[0003] The present invention combines the processes of corner assembly, frame and sash drilling, and hardware / seal installation on one production line, effectively solving the problems of automatic loading, automatic transmission of materials between processes, and automatic unloading. Four heads can simultaneously complete the corner assembly, punching and riveting processes of the four corners, and automatically drill the hardware installation holes, which greatly improves production efficiency and reduces labor intensity, and changes the problems existing in the existing aluminum alloy door and window processing process. Summary of the invention

[0004] The purpose of the present invention is to provide a CNC four-head automatic corner assembly production line, which changes the current situation of manual loading, manual unloading and manual process transmission. The single-head single-angle corner assembly punching and riveting processing is automatic loading and automatic unloading. Four heads can complete the corner assembly punching and riveting processing of four corners at the same time, automatically drill holes and automatically transmit. In the process of mass production and processing, the labor intensity of personnel is reduced and the production efficiency is improved. It is a CNC four-head automatic corner assembly production line with good processing reliability and high processing precision.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a CNC four-head automatic corner assembly production line, including a corner assembly machine, a hinge punching machine, a discharge table, an assembly conveying table, a control system, and a hydraulic system. The corner assembly machine, the hinge punching machine, the discharge table, and the assembly conveying table are sequentially arranged along the transmission direction of doors and windows to assemble into a line. Multiple assembly conveying tables can be placed in sequence. A control system and a hydraulic system are arranged on one side of the corner assembly machine.

[0006] Further, the angle assembly machine includes an angle assembly machine base, a movable crossbeam, a fixed crossbeam, an angle assembly mechanism A, an angle assembly mechanism B, an angle assembly mechanism C, an angle assembly mechanism D, a feeding and conveying device A, and a feeding and conveying device B. A fixed crossbeam is installed on one side of the angle assembly machine base through a fixed base. The movable crossbeam is connected with four sliders A and a ball screw nut seat A on the angle assembly machine base through a movable base. The angle assembly machine base includes a machine base A and two parallel guide rails A horizontally arranged on the machine base A. A ball screw transmission device A is fixed in the middle of the machine base A. Two sliders A are arranged on each of the two guide rails A. A ball screw nut A is arranged on the ball screw transmission device A. The ball screw nut A is connected to the ball screw nut seat A. The ball screw transmission device A drives the ball screw nut seat A to drive the movable crossbeam to realize repeated movement along the guide rail A. The fixed crossbeam includes a fixed base. Four connecting rods are fixed on one side of the fixed base. Connecting block A, two parallel guide rails D perpendicular to guide rail A are horizontally arranged above the fixed base, two sliders C are installed on each guide rail D, a ball screw transmission device B is fixed on the fixed base between the two guide rails D, two guide rails E are installed on the inner side of the fixed base, a rack A is horizontally installed on the upper side of the guide rail E, a ball screw nut B is installed on the ball screw transmission device B, and the ball screw nut B is connected to the ball screw nut seat B; the moving crossbeam includes a moving base, two parallel guide rails B perpendicular to guide rail A are horizontally arranged above the moving base, two sliders B are installed on each parallel guide rail B, a ball screw transmission device C is fixed on the moving base between the two guide rails B, two guide rails C are vertically installed on the inner side of the moving base, a horizontally installed rack B is installed on the upper side of the guide rail C, a ball screw nut C is installed on the ball screw transmission device C, and the ball screw nut C is connected to the ball screw nut seat C.

[0007] Furthermore, the corner assembly mechanism A includes a base plate, on which two sets of guide rail motion pairs A are fixed and arranged diagonally. A slide plate A is fixed on the guide rail motion pair A. The slide plate A is connected to the cylinder piston rod in the corner assembly feeding device to move the slide plate A along the direction of the guide rail motion pair A. The top of the slide plate A is connected to the workbench A. The bottom surface of the workbench A is equipped with a corner assembly positioning device. The top of the workbench A is equipped with a corner assembly clamping device, a corner assembly punching and riveting device 1 and a corner assembly punching and riveting device 2. The corner assembly punching and riveting device 1 and the corner assembly punching and riveting device 2 are respectively equipped with a corner assembly punching and riveting knife 1 and a corner assembly punching and riveting knife 2.

[0008] Furthermore, the structures of the angle-combining mechanisms A, B, C and D are the same. The angle-combining mechanisms A and B are symmetrically installed above the moving crossbeam. The bottom of the angle-combining mechanism A is connected to the four sliders B on the moving crossbeam. The middle position of the bottom of the angle-combining mechanism A is connected to the ball screw nut seat C. The ball screw transmission device C drives the ball screw nut C to drive the angle-combining device A connected to the ball screw nut seat C to move along the guide rail C. The bottom of the angle-combining mechanism B is fixedly connected to the four connecting blocks B on the moving crossbeam. The angle-combining mechanisms C and D are installed on the fixed crossbeam. On the beam, the bottom of the angle assembly mechanism C is connected to the four sliders C on the fixed beam, the middle position of the bottom of the angle assembly mechanism C is connected to the ball screw nut seat B, the ball screw transmission device B drives the ball screw nut B to drive the angle assembly mechanism C connected to the ball screw nut seat B to move along the guide rail D; the bottom of the angle assembly mechanism D is fixedly connected to the four connecting blocks A on the fixed beam; the angle assembly mechanism A, the angle assembly mechanism B, the angle assembly mechanism C, and the angle assembly mechanism D form four rectangular angle assembly riveting points, and the control system uniformly sends out simultaneous feeding, simultaneous positioning, simultaneous pressing, and simultaneous angle assembly riveting action signals.

[0009] Furthermore, the feeding and conveying devices A and B have the same structure after mirroring. The feeding and conveying device A includes a lifting clamping device A, a lifting clamping device B, a lifting clamping device C, and a lifting clamping device D. The lifting clamping device A, the lifting clamping device B, the lifting clamping device C, and the lifting clamping device D are all installed on the guide rail E of the fixed beam through four sliders D. The lifting clamping device A and the lifting clamping device C are fixed on the adjustment connecting beam A to keep the relative position fixed. A fixed connecting beam A is fixed between the lifting clamping device B and the lifting clamping device D. An adjustment locking plate A is fixed on the lifting clamping device D. The adjustment locking plate A is locked by locking handles A and B. It is connected to the adjustment connecting beam A, and an adjustment locking plate B is fixed on the lifting clamping device B. The adjustment locking plate B is connected to the adjustment connecting beam A through the locking handle C and the locking handle D. The relative positions of the lifting clamping device B and the lifting clamping device D relative to the lifting clamping device A and the lifting clamping device C can be adjusted by adjusting the locking handle A, the locking handle B, the locking handle C, and the locking handle D at the same time; a reducer A is installed on the lifting clamping device A, a servo motor A is installed on the upper end of the reducer A, and a gear A is installed on the lower end of the reducer A. The gear A is meshed with the rack B on the fixed beam, and the servo motor A drives the reducer A to drive the gear A to move the feeding conveyor A along the guide rail D on the fixed beam.

[0010] Furthermore, the feeding and conveying device B includes a lifting clamping device E, a lifting clamping device F, a lifting clamping device G, and a lifting clamping device H. The lifting clamping device E, the lifting clamping device F, the lifting clamping device G, and the lifting clamping device H are all installed on the guide rail C of the moving beam through four sliders E. The lifting clamping device E and the lifting clamping device G are fixed on the adjustment connecting beam B to keep the relative position fixed. A fixed connecting beam B is fixed between the lifting clamping device F and the lifting clamping device H. An adjustment locking device is fixed on the lifting clamping device H. The adjusting locking plate C is connected to the adjusting connecting beam B through the locking handle E and the locking handle F. The adjusting locking plate D is fixed on the lifting clamping device F. The adjusting locking plate D is connected to the adjusting connecting beam B through the locking handle G and the locking handle H. By adjusting the locking handle E, the locking handle F, the locking handle G, and the locking handle H at the same time, the relative positions of the lifting clamping device F and the lifting clamping device H relative to the lifting clamping device E and the lifting clamping device G can be adjusted. The lifting clamping device E is equipped with a reducer B, and the upper end of the reducer B is equipped with a servo motor. The lower end of the reducer B is equipped with a gear B, which meshes with the rack B on the moving beam. The servo motor B drives the reducer B to drive the gear B to make the feeding conveyor B move along the guide rail C on the moving beam; the control system sends a simultaneous drive signal to the feeding conveyor A and the feeding conveyor B to move simultaneously; the lifting clamping device C and the lifting clamping device D on the feeding conveyor A and the lifting clamping device G and the lifting clamping device H on the feeding conveyor B are the first group of lifting clamping. The first group of lifting clamping is set at the feeding conveyor At the left end of the conveying device A and the feeding conveying device B, the control system sends the same signal to lift and clamp simultaneously to feed the material to the corner punching and riveting position; the lifting and clamping device A and the lifting and clamping device B on the feeding conveying device A and the lifting and clamping device E and the lifting and clamping device F on the feeding conveying device B are the second group of lifting and clamping. The second group of lifting and clamping is arranged on the right end of the feeding conveying device A and the feeding conveying device B. The control system sends the same signal to lift and clamp simultaneously to discharge the material at the corner punching and riveting position, forming an alternating cycle of feeding and discharging actions.

[0011] Furthermore, the hinge punching machine includes a punching machine base, a fixed machine head, a movable machine head, a feeding and conveying device C, and a feeding and conveying device D; the punching machine base includes a machine base B, on which two parallel guide rails F are horizontally fixed, and two sliders F are arranged on each guide rail F. A movable machine head transmission device is arranged on the side wall of the machine base B, and two chip boxes are arranged under the machine base B. The movable machine head transmission device includes a transmission base A and a screw support A fixed on the side wall of the machine base B, a servo motor C is fixed on the transmission base A, and the servo motor C is connected to the transmission base A and the screw support A through the screw A, and the screw A is connected to the nut base A.

[0012] Furthermore, the fixed head of the hinge punching machine is fixed to the machine base B through a fixed plate A, and the fixed head includes a horizontal motion part 1, a vertical motion part 1, and a drilling power head 1. The horizontal motion part 1 includes a fixed plate A, a workbench B is fixed on the fixed plate A, a clamping device C is fixed on the workbench B, two parallel guide rails H are fixed on the fixed plate A, and two sliders G are installed on each guide rail H. Two conveying brackets A are fixed on the upper side of the fixed plate A close to the guide rail F, and a fixed head horizontal driving device is fixed above the fixed plate A between the two guide rails H. A transmission seat C is fixed on the fixed plate A, a servo motor E is fixed on the transmission seat C, a lead screw C is installed on the transmission seat C, and a nut seat C is installed on the lead screw C; the vertical motion part 1 includes a slide seat A installed on four sliders G, two parallel guide rails G are installed on the side of the slide seat A, and each guide rail G is installed Two sliders H, two guide rails G, a fixed machine head vertical drive device is vertically installed on the middle slide A, a transmission seat B is fixed on the slide A, a servo motor D is fixed on the transmission seat B, a screw B is installed on one side of the transmission seat B, the screw B is connected to the nut seat B, the nut seat C is connected to the slide A, and the servo motor E drives the nut seat C to drive the slide A to move repeatedly along the guide rail H direction; the drilling power head includes a slide plate B fixed on four sliders H, two vertically installed parallel guide rails I are fixed on the slide plate B, each guide rail I is arranged with two sliders I, a cylinder A is fixed on the slide plate B, a motor mounting plate A is installed on the four sliders I, a spindle motor A with a tool is fixed on the motor mounting plate A, the cylinder A pushes the motor mounting plate A to move repeatedly along the guide rail I direction, the slide plate B is connected to the nut seat B, and the servo motor D drives the nut seat B to drive the slide plate B to move along the guide rail G direction.

[0013] Furthermore, the movable head of the hinge punching machine is fixed on four sliders F on the base of the punching machine through a fixed plate B. The movable head includes a horizontal motion part 2, a vertical motion part 2, and a drilling power head 2. The horizontal motion part 2 includes a fixed plate B, a workbench C is fixed on the fixed plate B, a clamping device D is fixed on the workbench C, two parallel guide rails K are horizontally fixed on the fixed plate B, and two sliders J are installed on each guide rail K. Two conveying brackets B are fixed on one side of the fixed plate B close to the guide rail F, and a movable head horizontal driving device is fixed on the fixed plate B between the two guide rails K. The movable head horizontal driving device includes a transmission seat E fixed on the fixed plate B, a servo motor G is fixed on the transmission seat E, a lead screw E is installed on the transmission seat E, and a nut seat E is installed on the lead screw E; the vertical motion part 2 includes a slide seat B installed on four sliders J, and two parallel guide rails J are vertically arranged on the side of the slide seat B, and each guide rail Two sliders K are installed on G, and a movable head vertical driving device is vertically installed on the middle slide B of the two guide rails J. The movable head vertical driving device includes a transmission seat D fixed on the slide B, and a servo motor F is fixed on the transmission seat D. A lead screw D is installed on the other side of the transmission seat D, and a nut seat D is connected to the lead screw D. The nut seat E is connected to the slide B, and the servo motor G drives the nut seat E to drive the slide B to move repeatedly along the guide rail K direction; the drilling power head second includes a slide plate C fixed on four sliders K, two vertical parallel guide rails L are fixed on the slide plate C, and two sliders L are arranged on each guide rail L, and a cylinder B is fixed on the slide plate C, and a motor mounting plate B is installed on the four sliders L, and a spindle motor B with a tool is fixed on the motor mounting plate B, and the cylinder B pushes the motor mounting plate B to move repeatedly along the guide rail L direction, the nut seat D is connected to the slide plate C, and the servo motor F drives the nut seat D to drive the slide plate C to move along the guide rail J direction.

[0014] Further, the feeding and conveying device C is installed on two conveying brackets A on the fixed machine head, and the feeding and conveying device C includes a profile bracket A, a pulley support plate A is fixed on the profile bracket A, a pulley support plate B is fixed on the other side of the profile bracket A, a motor mounting bracket A is installed on the profile bracket A, a reduction motor A is installed on the motor mounting bracket A, an internal clamping device A for adjusting the tension of the pulley is installed on the profile bracket A, a pulley A is installed on the pulley support plate A, a pulley B is installed on the pulley support plate B, and the pulley A and the pulley B are connected by a conveyor belt A, the feeding and conveying device C is provided with a bracket A, the reduction motor A rotates to drive the pulley A to rotate, and the pulley B is driven to rotate by the conveyor belt A, and a guide bracket A is fixed on the vertical side of the profile bracket A; hinge The feeding and conveying device D of the chain punching machine is installed on two conveying brackets B fixed on the movable machine head. The feeding and conveying device D includes a profile bracket B, a pulley support plate C is fixed on the profile bracket B, a pulley support plate D is fixed on the other side of the profile bracket B, a motor mounting bracket B is installed on the profile bracket B, a reduction motor B is installed on the motor mounting bracket B, an internal clamping device B for adjusting the tension of the pulley is installed on the profile bracket B, a pulley D is installed on the pulley support plate D, a pulley C is installed on the pulley support plate B, and the pulley C and the pulley D are connected by a conveyor belt B. The feeding and conveying device D is provided with a bracket B, and the reduction motor B rotates to drive the pulley D to rotate, and the pulley C is driven to rotate through the conveyor belt B. A guide bracket B is installed on the vertical side of the profile bracket B.

[0015] Further, the unloading platform includes an unloading platform base, a feeding and conveying device E, and a feeding and conveying device F. The unloading platform base includes a machine base C, on which two parallel guide rails M are horizontally installed, and each guide rail M is provided with two sliders O. A stand is fixed on the side of the machine base C away from the guide rails M, and a cylinder D is installed on the stand through a cylinder mounting seat B. Four sliders N are vertically installed on the stand, and a slide plate D is installed on the four slides N. The slide plate D is installed with a cylinder C through a cylinder mounting seat A. Four slide blocks M are vertically installed on the plate D, a discharge beam driving device is installed on the machine base C between the two guide rails M, a transmission base F is fixed on the machine base C, a screw support B is fixed on the other side of the machine base C, a servo motor H is fixed on the transmission base F, a screw F is installed between the transmission base F and the screw support B, a nut base F is installed on the screw F, the nut base F is fixed on the slide plate D, the servo motor H drives the nut base F to drive the slide D, and drives the feeding conveyor F to move along the guide rail M direction.

[0016] Furthermore, the feeding and conveying device E of the unloading platform includes a profile bracket C, a pulley support plate E and a motor mounting bracket C are respectively fixed on both sides of the profile bracket C, a skateboard E is fixed on the profile bracket C, a detection switch is fixed on the profile bracket C close to the motor mounting bracket C, a pulley E is installed on the pulley support plate E, a reduction motor C is installed on the motor mounting bracket C, a pulley F is installed on the reduction motor C, the pulley E and the pulley F are connected by a conveyor belt C, two parallel guide rails N are vertically fixed on the skateboard E, a cylinder traction seat A is fixed on the skateboard E, the reduction motor C drives the pulley F to rotate through the conveyor belt C, the guide rail N passes through the slider N on the base of the unloading platform, the cylinder traction seat A is connected to the cylinder D, and the cylinder D drives the feeding and conveying device E to move up and down along the guide rail N through the cylinder traction seat A.

[0017] Furthermore, the feeding and conveying device F of the unloading platform includes a profile bracket D, a pulley support plate F and a motor mounting bracket D are fixed on both sides of the profile bracket D, a skateboard F is fixed on the profile bracket D, a pulley H is mounted on the pulley support plate F, a reduction motor D is mounted on the motor mounting bracket D, a pulley G is mounted on the reduction motor D, the pulley G and the pulley H are connected by a conveyor belt D, two parallel guide rails O are vertically fixed on the skateboard F, a cylinder traction seat B is fixed on the skateboard F, the reduction motor D drives the pulley G to rotate through the conveyor belt D, the guide rail O passes through the slider M on the base of the unloading platform, the cylinder traction seat B is connected to the cylinder C, and the cylinder C drives the feeding and conveying device F to move up and down along the guide rail O through the cylinder traction seat B.

[0018] Furthermore, the assembled conveyor platform includes a conveyor platform base, a lifting workbench, and an electrical box for a feeding section. The conveyor platform base includes a conveyor platform base frame. Six leveling bases are installed below the conveyor platform base frame. A reduction motor E is fixed to the conveyor platform base frame. A double-sprocket is installed on the reduction motor E. A symmetrically arranged guide rail P is fixed to the inner side of the conveyor platform base frame. A cylinder mounting seat C is fixed to the inner side of the conveyor platform base frame. A cylinder E is installed on the cylinder mounting seat C. A plurality of rollers are installed on the conveyor platform base frame through seat bearings. A double-sprocket is installed at one end of each roller. The reduction motor The double sprocket on the machine E and the double sprocket at one end of the outermost roller at the top are driven by chain A, and the outermost roller and the adjacent rollers are driven in turn by chain B, so that the reduction motor E drives all rollers to rotate; the lifting platform includes a lifting platform frame, sliders P are installed on both sides of the lifting platform frame, cylinder traction seats C are installed on both sides of the lifting platform frame, fisheye bearings are installed on the cylinder traction seat C, the slider P is connected to the guide rail P on the base of the conveyor platform, the fisheye bearing is connected to the cylinder E on the base of the conveyor platform, and the cylinder E pushes the cylinder traction seat C to drive the lifting platform to move up and down along the guide rail P.

[0019] Furthermore, the control system includes an operation console, on which are provided control buttons, an operating system and a touch display screen electrically connected to each other, and the operating system is installed with multi-axis machining program software.

[0020] The present invention has the following beneficial effects: a CNC four-head automatic corner assembly production line of the present invention completes the loading, four-corner assembly, hardware drilling, unloading, and workpiece conveying of aluminum alloy doors and windows. The fixed crossbeam and the movable crossbeam of the corner assembly machine are equipped with a fixed corner assembly mechanism on the discharge side, and an angle assembly mechanism that can move along the guide rail is installed on the other side, and also includes two sets of parallel movable lifting and lowering feeding and conveying devices; the hinge punching machine includes two movable drilling mechanisms arranged on both sides, and a feeding and conveying device is installed on each drilling mechanism, and a feeding and conveying device with adjustable position is installed on the unloading table, and the assembly and conveying workbench can be lifted up and down to facilitate the door and window assembly operation. The information of the doors and windows to be processed is input into the operating system, the feeding and conveying device adjusts its position to receive the doors and windows to be processed, the corner assembly mechanism moves to the position to be processed, the feeding and conveying device sends the doors and windows into the corner assembly frame, the corner assembly mechanism completes the four-corner riveting and returns at one time, and the feeding and conveying device sends the doors and windows to the hinge punching machine, which completes the actions of pressing, drilling, pressing and loosening according to the set position, and the doors and windows are sent to the unloading platform to wait, and the assembly conveying platform is manually operated to complete the assembly of door and window accessories. The entire processing process has a high degree of automation, and the corner assembly, drilling and conveying of doors and windows are automatically completed, with high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the CNC four-head automatic corner assembly production line of the present invention;

[0022] Figure 2 It is a top view schematic diagram of the CNC four-head automatic corner assembly production line of the present invention;

[0023] Figure 3 It is a schematic diagram of the main view of the angle assembly machine of the CNC four-head automatic angle assembly production line of the present invention;

[0024] Figure 4 It is a top view schematic diagram of the angle assembly machine;

[0025] Figure 5 It is a left side schematic diagram of a CNC four-head automatic corner assembly production line corner assembly machine of the present invention;

[0026] Figure 6 It is a top view schematic diagram of the base of the angle assembly machine of the CNC four-head automatic angle assembly production line of the present invention;

[0027] Figure 7 It is a schematic diagram of the main view of the fixed crossbeam of the CNC four-head automatic corner assembly production line of the present invention;

[0028] Figure 8It is a schematic diagram of the main view of the movable crossbeam of the CNC four-head automatic corner assembly production line of the present invention;

[0029] Fig. 9 It is a front view schematic diagram of the angle assembly mechanism A of the CNC four-head automatic angle assembly production line of the present invention;

[0030] Fig.10 yes Fig. 9 A-axis section schematic diagram of the middle angle assembly mechanism A;

[0031] Fig.11 yes Fig. 9 Schematic diagram of the middle angle assembly mechanism A in the P direction;

[0032] Fig.12 It is a front view schematic diagram of the feeding and conveying device B of the CNC four-head automatic corner assembly production line of the present invention;

[0033] Fig.13 It is a front view schematic diagram of the feeding and conveying device A of the CNC four-head automatic corner assembly production line of the present invention;

[0034] Fig.14 It is a schematic diagram of the main view of the hinge punching machine of the CNC four-head automatic corner assembly production line of the present invention;

[0035] Fig.15 It is a top view schematic diagram of a hinge punching machine for a CNC four-head automatic corner assembly production line of the present invention;

[0036] Fig.16 It is a schematic diagram of the main view of the feeding and conveying device C of the CNC four-head automatic corner assembly production line of the present invention;

[0037] Fig.17 It is a schematic diagram of the main view of the feeding and conveying device D of the CNC four-head automatic corner assembly production line of the present invention;

[0038] Fig.18 It is a schematic diagram of the main view of the unloading platform of the CNC four-head automatic corner assembly production line of the present invention;

[0039] Fig.19 It is a top view schematic diagram of the unloading platform of the CNC four-head automatic corner assembly production line of the present invention;

[0040] Fig. 20 It is a front view schematic diagram of the feeding and conveying device E of the CNC four-head automatic corner assembly production line of the present invention;

[0041] Fig.21 It is a schematic diagram of the main view of the feeding and conveying device F of the CNC four-head automatic corner assembly production line of the present invention;

[0042] Fig. 22 It is a schematic diagram of the main view of the assembly conveyor platform of the CNC four-head automatic corner assembly production line of the present invention;

[0043] Fig.23 It is a schematic cross-sectional view along the A axis of an assembly conveyor platform of a CNC four-head automatic corner assembly production line according to the present invention.

[0044] Among them: 1000, corner assembly machine, 2000, hinge punching machine, 3000, unloading platform, 4000, assembly conveyor platform, 5000, control system, 6000, hydraulic system;

[0045] 1100, angle assembly machine base, 1200, movable crossbeam, 1300, fixed crossbeam, 1400, angle assembly mechanism A, 1500, angle assembly mechanism B, 1600, angle assembly mechanism C, 1700, angle assembly mechanism D, 1800, feeding and conveying device A, 1900, feeding and conveying device B;

[0046] 2100, punching machine base, 2200, feeding and conveying device C, 2300, feeding and conveying device D, 2400, fixed machine head, 2400A, horizontal moving part 1, 2400B, vertical moving part 1, 2400C, drilling power head 1, 2500, movable machine head, 2500A, horizontal moving part 2, 2500B, vertical moving part 2, 2500C, drilling power head 2;

[0047] 3100, unloading platform base, 3200, feeding and conveying device E, 3300, feeding and conveying device F;

[0048] 4100, conveyor platform base, 4200, lifting workbench, 4300, conveying section electrical box;

[0049] 1101, machine base A, 1102, guide rail A, 1103, slider A, 1104, ball screw nut seat A, 1105, ball screw nut A, 1106, ball screw transmission device A, 1201, fixed beam, 1202, slider B, 1203, guide rail B, 1204, ball screw transmission device C, 1205, ball screw nut C, 1206, ball screw nut seat C, 1207, connecting block B, 1208, rack B, 1209, guide rail C, 1301, moving beam, 1302, slider C, 1303, guide rail B, 1304, ball screw transmission device C, 1305, ball screw nut C, 1306, ball screw nut seat C, 1307, connecting block B, 1308, rack B, 13 ... 03, guide rail D, 1304, ball screw transmission device B, 1305, ball screw nut C, 1306, ball screw nut seat B, 1307, connecting block A, 1308, rack A, 1309, guide rail E, 1401, corner assembly punching and riveting device 1, 1402, corner assembly punching and riveting knife 1, 1403, corner assembly punching and riveting device 2, 1404, corner assembly punching and riveting knife 2, 1405, workbench, 1406, corner assembly feeding device, 1407, corner assembly clamping device, 1408, corner assembly positioning device, 1409, slide plate A, 1410, bottom plate, 1411. Guide rail motion pair A, 1801. Lifting clamping device A, 1802. Lifting clamping device B, 1803. Lifting clamping device C, 1804. Lifting clamping device D, 1805. Fixing connecting beam A, 1806. Adjusting connecting beam A, 1807. Adjusting locking plate A, 1808. Locking handle A, 1809. Locking handle B, 1810. Adjusting locking plate B, 1811. Locking handle C, 1812. Locking handle D, 1813. Servo motor A, 1814. Reducer A, 1815. Gear A, 181 6. Slider D, 1901. Lifting clamping device E, 1902. Lifting clamping device F, 1903. Lifting clamping device G, 1904. Lifting clamping device H, 1905. Fixing connecting beam B, 1906. Adjusting connecting beam B, 1907. Adjusting locking plate C, 1908. Locking handle E, 1909. Locking handle F, 1910. Adjusting locking plate D, 1911. Locking handle G, 1912. Locking handle H, 1913. Servo motor B, 1914. Reducer B, 1915. Gear B, 1916. Slider E;

[0050] 2101, slider F, 2102, nut seat A, 2103, machine base B, 2104, chip box, 2105, lead screw A, 2106

[0051] Servo motor C, 2107, transmission seat A, 2108, guide rail F, 2109, screw support A, 2201, pulley A, 2202, pulley support plate A, 2203, reduction motor A, 2204, motor mounting bracket A, 2205, internal clamping device A, 2206, conveyor belt A, 2207, profile bracket A, 2208, guide bracket A, 2209, bracket A, 2210, pulley support plate B, 2211, pulley B, 2301, pulley C, 2302, pulley support plate C, 2303, profile Material bracket B, 2304, guide bracket B, 2305, internal clamping device B, 2306, motor mounting bracket B, 2307, pulley support plate D, 2308, pulley D, 2309, reduction motor B, 2310, conveyor belt B, 2311, bracket B, 2401, servo motor D, 2402, transmission seat B, 2403, lead screw B, 2404, guide rail G, 2405, nut seat B, 2406, cylinder A, 2407, spindle motor A, 2408, motor mounting plate A, 2409, slider G , 2410, nut seat C, 2411, servo motor E, 2412, transmission seat C, 2413, fixed plate, 2414 guide rail H, 2415, lead screw C, 2416, slide seat A, 2417, slider H, 2418, slide plate B, 2419, slider I, 2420, guide rail I, 2421, clamping device C, 2422, workbench B, 2423, transmission bracket A, 2501, servo motor F, 2502, transmission seat D, 2503, lead screw D, 2504, nut seat D, 2505, Cylinder B, 2506, motor mounting plate B, 2507, spindle motor B, 2508, guide rail J, 2509, slider J, 2510, nut seat E, 2511, servo motor G, 2512, transmission seat E, 2513, fixed plate, 2514, guide rail K, 2515, lead screw E, 2516, slide seat B, 2517, slider K, 2518, slide plate C, 2519, guide rail L, 2520, slider L; 2521, clamping device D, 2522, workbench C, 2523, transmission bracket B;

[0052] 3101, base C, 3102, guide rail M, 3103, slider M, 3104, cylinder mounting seat A, 3105, transmission seat F, 3106, servo motor H, 3107, screw F, 3108, screw support B, 3109, stand, 3110, cylinder mounting seat B, 3111, slider N, 3112, slider O, 3113, slide plate D, 3114, cylinder C, 3115, cylinder D, 3116 nut seat F, 3201, pulley E, 3202, pulley support plate E, 3203, profile bracket C, 3 204, conveyor belt C, 3205, guide rail N, 3206, cylinder traction seat A, 3207, skateboard E, 3208, motor mounting bracket C, 3209, reduction motor C, 3210, pulley F, 3211, detection switch, 3301, pulley G, 3302, reduction motor D, 3303, motor mounting bracket D, 3304, guide rail O, 3305, cylinder traction seat B, 3306, skateboard F, 3307, profile bracket D, 3308, pulley support plate F, 3309, pulley H, 3310, conveyor belt D;

[0053] 4101. Cylinder traction seat C, 4102. Fisheye bearing, 4103. Slider P, 4104. Lifting platform frame, 4201. Roller, 4202. Bearing with seat, 4203. Conveyor platform base frame, 4204. Leveling base, 4205. Guide rail P, 4206. Cylinder E, 4207. Cylinder mounting seat C, 4208. Reducer motor E, 4209. Double sprocket, 4210. Chain A, 4211. Chain B. DETAILED DESCRIPTION

[0054] The present invention will now be described in further detail with reference to the accompanying drawings.

[0055] like Figure 1 , 2 As shown, a CNC four-head automatic corner assembly production line includes a corner assembly machine 1000, a hinge punching machine 2000, a discharge platform 3000, an assembly conveying platform 4000, a control system 5000, and a hydraulic system 6000. The corner assembly machine 1000, the hinge punching machine 2000, the discharge platform 3000, and the assembly conveying platform 4000 are sequentially arranged along the transmission direction of doors and windows to form an assembly line. Multiple assembly conveying platforms 4000 can be arranged in sequence. A control system 5000 and a hydraulic system 6000 are provided on one side of the corner assembly machine 1000.

[0056] like Figure 3-8As shown, the angle combining machine 1000 includes an angle combining machine base 1100, a moving crossbeam 1200, a fixed crossbeam 1300, an angle combining mechanism A1400, an angle combining mechanism B1500, an angle combining mechanism C1600, an angle combining mechanism D1700, a feeding and conveying device A1800, and a feeding and conveying device B1900. A fixed crossbeam 1300 is installed on one side of the angle combining machine base 1100 through a fixed base 1301. The moving crossbeam 1200 is connected to four sliders A1103 and a ball screw nut seat A1104 on the angle combining machine base 1100 through the moving base 1201. The angle combining machine base 1100 includes a machine base A1101, a horizontally arranged There are two parallel guide rails A1102 on the machine base A1101, a ball screw transmission device A1106 is fixed in the middle of the machine base A1101, two sliders A1103 are arranged on each of the two guide rails A1102, a ball screw nut A1105 is arranged on the ball screw transmission device A1106, the ball screw nut A1105 is connected to the ball screw nut seat A1104, the ball screw transmission device A1106 drives the ball screw nut seat A1104 to drive the moving crossbeam 1200 to achieve repeated movement along the direction of the guide rail A1102; the fixed crossbeam 1300 includes a fixed base 1301, and one side of the fixed base 1301 is fixed with Four connecting blocks A1307, two parallel guide rails D1303 perpendicular to the guide rail A1102 are arranged horizontally above the fixed base 1301, two sliders C1302 are installed on each guide rail D1303, a ball screw transmission device B1304 is fixed on the fixed base 1301 between the two guide rails D1303, two guide rails E1309 are installed on the inner side of the fixed base 1301, a rack A1308 is horizontally installed on the upper side of the guide rail E1309, a ball screw nut B1305 is installed on the ball screw transmission device B1304, and the ball screw nut B1305 is connected to the ball screw nut seat B1306; the movable crossbeam 120 0 includes a mobile base 1201, two parallel guide rails B1203 perpendicular to the guide rail A1102 are horizontally arranged above the mobile base 1201, two sliders B1202 are installed on each parallel guide rail B1203, a ball screw transmission device C1204 is fixed on the mobile base 1201 between the two guide rails B1203, two guide rails C1209 are vertically installed on the inner side of the mobile base 1201, a horizontally installed rack B1208 is installed on the upper side of the guide rail C1209, a ball screw nut C1205 is installed on the ball screw transmission device C1204, and the ball screw nut C1205 is connected to the ball screw nut seat C1206.

[0057] like Fig. 9 , 10As shown in Figures 11, the corner assembly mechanism A1400 includes a base plate 1410, on which two sets of guide rail motion pairs A1411 are diagonally arranged, and a slide plate A1409 is fixed on the guide rail motion pair A1411. The slide plate A1409 is connected to the cylinder piston rod in the corner assembly feeding device 1406, so that the slide plate A1409 moves along the direction of the guide rail motion pair A1411. The upper surface of the slide plate A1409 is connected to the workbench A1405, and the bottom surface of the workbench A1405 is provided with a corner assembly positioning device 1408. The workbench A1405 is provided with a corner assembly clamping device 1407, a corner assembly punching and riveting device 1401 and a corner assembly punching and riveting device 2 1403. The corner assembly punching and riveting device 1401 and the corner assembly punching and riveting device 2 1403 are respectively provided with a corner assembly punching and riveting knife 1402 and a corner assembly punching and riveting knife 2 1404.

[0058] like Figure 4 , 9 As shown in Figures 10 and 11, the structures of the angle-combining mechanisms A1400, B1500, C1600 and D1700 are the same. The angle-combining mechanisms A1400 and B1500 are symmetrically installed above the moving beam 1200. The bottom of the angle-combining mechanism A1400 is connected to the four sliders B1202 on the moving beam 1200. The middle position of the bottom of the angle-combining mechanism A1400 is connected to the ball screw nut seat C1206. The ball screw transmission device C1204 drives the ball screw nut C1205 to drive the angle-combining device A connected to the ball screw nut seat C1206 to move along the guide rail C1209. The bottom of the angle-combining mechanism B1500 is fixedly connected to the four connecting blocks B1207 on the moving beam 1200. The angle-combining mechanisms C1600 and D1700 are connected to the moving beam 1200. 0 is installed on the fixed beam 1300, the bottom of the corner assembly mechanism C1600 is connected to the four sliders C1302 on the fixed beam 1300, the middle position of the bottom of the corner assembly mechanism C1600 is connected to the ball screw nut seat B1306, the ball screw transmission device B1304 drives the ball screw nut B1305 to drive the corner assembly mechanism C1600 connected to the ball screw nut seat B1306 to move along the guide rail D1303; the bottom of the corner assembly mechanism D1700 is fixedly connected to the four connecting blocks A1307 on the fixed beam 1300; the corner assembly mechanism A1400, the corner assembly mechanism B1500, the corner assembly mechanism C1600, and the corner assembly mechanism D1700 form four rectangular corner assembly punching and riveting points, and the control system 5000 uniformly sends out simultaneous feeding, simultaneous positioning, simultaneous pressing, and simultaneous corner assembly punching and riveting action signals.

[0059] like Figure 5 , 13As shown, the feeding and conveying device A1800 and the feeding and conveying device B1900 have the same structure after mirroring. The feeding and conveying device A1800 includes a lifting clamping device A1801, a lifting clamping device B1802, a lifting clamping device C1803, and a lifting clamping device D1804. The lifting clamping device A1801, the lifting clamping device B1802, the lifting clamping device C1803, and the lifting clamping device D1804 are all installed on the fixed beam 1 through four slide blocks D1816. On the guide rail E1309 of 300, the lifting clamping device A1801 and the lifting clamping device C1803 are fixed on the adjustment connecting beam A1806 to keep the relative position fixed, and a fixed connecting beam A1805 is fixed between the lifting clamping device B1802 and the lifting clamping device D1804. An adjustment locking plate A1807 is fixed on the lifting clamping device D1804. The adjustment locking plate A1807 is connected to the adjustment connecting beam A1806 through the locking handle A1808 and the locking handle B1809. The lifting clamping device B1802 is connected with an adjustment locking plate B1810, and the adjustment locking plate B1810 is connected with the adjustment connecting beam A1806 through the locking handle C1811 and the locking handle D1812. By adjusting the locking handle A1808, the locking handle B1809, the locking handle C1811, and the locking handle D1812 at the same time, the lifting clamping device B1802 and the lifting clamping device D1804 can be adjusted relative to the lifting clamping device A1801 and the lifting clamping device The relative position of C1803; the lifting and clamping device A1801 is equipped with a reducer A1814, the upper end of the reducer A1814 is equipped with a servo motor A1813, the lower end of the reducer A1814 is equipped with a gear A1815, the gear A1815 is meshed with the rack B1208 on the fixed beam 1300, the servo motor A1813 drives the reducer A1814 to drive the gear A1815 to make the feeding conveyor A1800 move along the direction of the guide rail D1303 on the fixed beam 1300.

[0060] like Figure 5 , 12As shown, the feeding and conveying device B1900 includes a lifting clamping device E1901, a lifting clamping device F1902, a lifting clamping device G1903, and a lifting clamping device H1904. The lifting clamping device E1901, the lifting clamping device F1902, the lifting clamping device G1903, and the lifting clamping device H1904 are all installed on the guide rail C1209 of the moving beam 1200 through four sliders E1916. The lifting clamping device E1901 and the lifting clamping device G1903 are fixed on the adjustment connecting beam B1906 to keep the relative position fixed. A fixed connecting beam B1905 is fixed between the lifting clamping device F1902 and the lifting clamping device H1904. An adjustment lock is fixed on the lifting clamping device H1904. The tightening plate C1907 is connected to the adjusting connecting beam B1906 through the locking handle E1908 and the locking handle F1909. The adjusting locking plate D1910 is fixed on the lifting clamping device F1902. The adjusting locking plate D1910 is connected to the adjusting connecting beam B1906 through the locking handle G1911 and the locking handle H1912. The relative positions of the lifting clamping device F1902 and the lifting clamping device H1904 with respect to the lifting clamping device E1901 and the lifting clamping device G1903 can be adjusted by adjusting the locking handle E1908, the locking handle F1909, the locking handle G1911 and the locking handle H1912 at the same time; the lifting clamping device E1901 is equipped with a reducer B1914 The upper end of the reducer B1914 is equipped with a servo motor B1913, and the lower end of the reducer B1914 is equipped with a gear B1915. The gear B1915 is meshed with the rack B1208 on the moving beam 1200. The servo motor B1913 drives the reducer B1914 to drive the gear B1915 to make the feeding and conveying device B1900 move along the guide rail C1209 on the moving beam 1200; the control system 5000 uniformly sends simultaneous drive signals to the feeding and conveying device A1800 and the feeding and conveying device B1900 to move simultaneously; the lifting clamping device C1803 and the lifting clamping device D1804 on the feeding and conveying device A1800 and the lifting clamping device G1903 and the lifting clamping device D1804 on the feeding and conveying device B1900 H1904 is the first group of lifting and clamping. The first group of lifting and clamping is set at the left end of the feeding and conveying device A1800 and the feeding and conveying device B1900. The control system 5000 sends the same signal to lift and clamp simultaneously to feed the material to the corner punching and riveting position; the lifting and clamping device A1801 and the lifting and clamping device B1802 on the feeding and conveying device A1800 and the lifting and clamping device E1901 and the lifting and clamping device F1902 on the feeding and conveying device B1900 are the second group of lifting and clamping. The second group of lifting and clamping is set at the right end of the feeding and conveying device A1800 and the feeding and conveying device B1900. The control system 5000 sends the same signal to lift and clamp simultaneously to discharge the material at the corner punching and riveting position, forming an alternating cycle of feeding and discharging actions.

[0061] like Fig.14 , 15 As shown, the hinge punching machine 2000 includes a punching machine base 2100, a fixed head 2400, a movable head 2500, a feeding and conveying device C2200, and a feeding and conveying device D2300; the punching machine base 2100 includes a machine base B2103, on which two parallel guide rails F2108 are horizontally fixed, two sliders F2101 are arranged on each guide rail F2108, and a movable machine is arranged on the side wall of the machine base B2103. Head transmission device, two chip boxes 2104 are arranged under the machine base B2103, the movable head transmission device includes a transmission base A2107 and a screw support A2109 fixed on the side wall of the machine base B2103, a servo motor C2106 is fixed on the transmission base A2107, the servo motor C2106 is connected to the transmission base A2107 and the screw support A2109 through a screw A2105, and the screw A2105 is connected to a nut base A2102.

[0062] like Fig.14 , 15As shown, the fixed head 2400 of the hinge punching machine 2000 is fixed on the machine base B2103 through a fixed plate A2413, and the fixed head 2400 includes a horizontal motion part 2400A, a vertical motion part 2400B, and a drilling power head 2400C. The horizontal motion part 2400A includes a fixed plate A2413, a workbench B2422 is fixed on the fixed plate A2413, a clamping device C2421 is fixed on the workbench B2422, two parallel guide rails H2414 are fixed on the fixed plate A2413, and two sliders G2409 are installed on each guide rail H2414. Two conveying brackets A2423 are fixed on one side of the guide rail F2108, and a fixed head 2400 horizontal drive device is fixed on the fixed plate A2413 between the two guide rails H2414, a transmission seat C2412 is fixed on the fixed plate A2413, a servo motor E2411 is fixed on the transmission seat C2412, a lead screw C2415 is installed on the transmission seat C2412, and a nut seat C2410 is installed on the lead screw C2415; the vertical motion part 2400B includes a slide seat A2416 installed on four slides G2409, and two parallel guide rails G2404 are installed on the side of the slide seat A2416, and two guide rails G2404 are installed on each guide rail G2404. Slider H2417, a fixed head 2400 vertical drive device is vertically installed on the middle slide A2416 of the two guide rails G2404, a transmission seat B2402 is fixed on the slide A2416, a servo motor D2401 is fixed on the transmission seat B2402, a lead screw B2403 is installed on one side of the transmission seat B2402, the lead screw B2403 is connected to the nut seat B2405, the nut seat C2410 is connected to the slide A2416, and the servo motor E2411 drives the nut seat C2410 to drive the slide A2416 to move repeatedly along the guide rail H2414 direction; the drilling power head 2400C includes a slide fixed on four sliders H2417 B2418, two vertically mounted parallel guide rails I2420 are fixed on the skateboard B2418, two sliders I2419 are arranged on each guide rail I2420, a cylinder A2406 is fixed on the skateboard B2418, a motor mounting plate A2408 is mounted on the four sliders I2419, a spindle motor A2407 with a tool is fixed on the motor mounting plate A2408, the cylinder A2406 pushes the motor mounting plate A2408 to move repeatedly along the direction of the guide rail I2420, the skateboard B2418 is connected to the nut holder B2405, the servo motor D2401 drives the nut holder B2405 to drive the skateboard B2418 to move along the direction of the guide rail G2404.

[0063] like Fig.14 , 15As shown, the movable head 2500 of the hinge punch 2000 is fixed on four sliders F2101 on the punch base 2100 through a fixing plate B2513. The movable head 2500 includes a horizontal motion part 2500A, a vertical motion part 2500B, and a drilling power head 2500C. The horizontal motion part 2500A includes a fixing plate B2513, a workbench C2522 is fixed on the fixing plate B2513, a clamping device D2521 is fixed on the workbench C2522, two parallel guide rails K2514 are horizontally fixed on the fixing plate B2513, and two sliders J2509 are installed on each guide rail K2514. The fixing plate B2513 is provided with a plurality of guide rails K2514, each of which has two sliders J2509. Two conveying brackets B2523 are fixed on one side of the upper side of the guide rail F2108. A movable head horizontal driving device is fixed on the fixed plate B2513 between the two guide rails K2514. The movable head horizontal driving device includes a transmission seat E2512 fixed on the fixed plate B2513, a servo motor G2511 is fixed on the transmission seat E2512, a lead screw E2515 is installed on the transmission seat E2512, and a nut seat E2510 is installed on the lead screw E2515; the vertical motion part 2500B includes a slide seat B2516 installed on four slides J2509, and two parallel guide rails J2508 are vertically arranged on the side of the slide seat B2516, each guide rail G240 4 is equipped with two sliders K2517, and a movable head vertical drive device is vertically installed on the middle slide B2516 of the two guide rails J2508. The movable head vertical drive device includes a transmission seat D2502 fixed on the slide B2516, a servo motor F2501 is fixed on the transmission seat D2502, a lead screw D2503 is installed on the other side of the transmission seat D2502, a nut seat D2504 is connected to the lead screw D2503, and the nut seat E2510 is connected to the slide B2516. The servo motor G2511 drives the nut seat E2510 to drive the slide B2516 to move repeatedly along the direction of the guide rail K2514; the drilling power head 2500C includes a transmission seat D2502 fixed on the slide B2516, a servo motor F2501 is fixed on the transmission seat D2502, and a lead screw D2503 is installed on the other side of the transmission seat D2502. The nut seat D2504 is connected to the lead screw D2503, and the nut seat E2510 is connected to the slide B2516. The servo motor G2511 drives the nut seat E2510 to drive the slide B2516 to move repeatedly along the direction of the guide rail K2514; The skateboard C2518 on the slider K2517 has two vertical parallel guide rails L2519 fixed on the skateboard C2518, and two sliders L2520 are arranged on each guide rail L2519. The cylinder B2505 is fixed on the skateboard C2518, and the motor mounting plate B2506 is installed on the four sliders L2520. The spindle motor B2507 with a tool is fixed on the motor mounting plate B2506. The cylinder B2505 pushes the motor mounting plate B2506 to move repeatedly along the direction of the guide rail L2519. The nut seat D2504 is connected to the skateboard C2518, and the servo motor F2501 drives the nut seat D2504 to drive the skateboard C2518 to move along the direction of the guide rail J2508.

[0064] like Figure 14-17As shown, the feeding and conveying device C2200 is installed on two conveying brackets A2423 on the fixed head 2400, and the feeding and conveying device C2200 includes a profile bracket A2207, a pulley support plate A2202 is fixed on the profile bracket A2207, a pulley support plate B2210 is fixed on the other side of the profile bracket A2207, a motor mounting bracket A2204 is installed on the profile bracket A2207, a reduction motor A2203 is installed on the motor mounting bracket A2204, and a belt support for adjusting the belt is installed on the profile bracket A2207. The inner clamping device A2205 of the pulley tensioning degree is provided, the pulley A2201 is installed on the pulley support plate A2202, the pulley B2211 is installed on the pulley support plate B2210, the pulley A2201 and the pulley B2211 are connected by a conveyor belt A2206, the feeding conveyor device C2200 is provided with a bracket A2209, the reduction motor A2203 rotates to drive the pulley A2201 to rotate, and the conveyor belt A2206 drives the pulley B2211 to rotate, and the profile bracket A2207 is fixed with a guide bracket A2208 on the vertical side; the hinge is opened The feeding and conveying device D2300 of the drilling machine 2000 is installed on two conveying brackets B2523 fixed on the movable head 2500. The feeding and conveying device D2300 includes a profile bracket B2303, a pulley support plate C2302 is fixed on the profile bracket B2303, a pulley support plate D2307 is fixed on the other side of the profile bracket B2303, a motor mounting bracket B2306 is installed on the profile bracket B2303, a reduction motor B2309 is installed on the motor mounting bracket B2306, and a useful An internal clamping device B2305 is used to adjust the tension of the pulley, a pulley D2308 is installed on the pulley support plate D2307, a pulley C2301 is installed on the pulley support plate B2210, the pulley C2301 is connected to the pulley D2308 by a conveyor belt B2310, the feeding conveyor device D2300 is provided with a bracket B2311, the reduction motor B2309 rotates to drive the pulley D2308 to rotate, and the conveyor belt B2310 drives the pulley C2301 to rotate, and a guide bracket B2304 is installed on the vertical side of the profile bracket B2303.

[0065] like Figure 18-19As shown, the unloading platform 3000 includes an unloading platform base 3100, a feeding and conveying device E3200, and a feeding and conveying device F3300. The unloading platform base 3100 includes a machine base C3101. Two parallel guide rails M3102 are horizontally installed on the machine base C3101. Two sliders O3112 are arranged on each guide rail M3102. A stand 3109 is fixed on the side of the machine base C3101 away from the guide rail M3102. A cylinder D3115 is installed on the stand 3109 through a cylinder mounting seat B3110. Four sliders N3111 are vertically installed on the stand 3109. A slide plate D3113 is installed on the four slides N3111. A cylinder C3115 is installed on the slide plate D3113 through a cylinder mounting seat A3104. 14. Four sliders M3103 are vertically installed on the slide D3113, and a discharge beam driving device is installed on the machine base C3101 between the two guide rails M3102. A transmission base F3105 is fixed on the machine base C3101, and a screw support B3108 is fixed on the other side of the machine base C3101. A servo motor H3106 is fixed on the transmission base F3105. A screw F3107 is installed between the transmission base F3105 and the screw support B3108. A nut base F3116 is installed on the screw F3107. The nut base F3116 is fixed on the slide D3113. The servo motor H3106 drives the nut base F3116 to drive the slide D, thereby driving the feeding conveyor F3300 to move along the direction of the guide rail M3102.

[0066] like Figure 18-20 As shown, the feeding and conveying device E3200 of the unloading platform 3000 includes a profile bracket C3203, a pulley support plate E3202 and a motor mounting bracket C3208 are respectively fixed on both sides of the profile bracket C3203, a slide plate E3207 is fixed on the profile bracket C3203, a detection switch 3211 is fixed on the profile bracket C3203 near the motor mounting bracket C3208, a pulley E3201 is installed on the pulley support plate E3202, a reduction motor C3209 is installed on the motor mounting bracket C3208, a pulley F3210 is installed on the reduction motor C3209, and the pulley E3201 It is connected to the pulley F3210 through a conveyor belt C3204, two parallel guide rails N3205 are vertically fixed on the skateboard E3207, a cylinder traction seat A3206 is fixed on the skateboard E3207, the reduction motor C3209 drives the pulley F3210 to rotate through the conveyor belt C3204, the guide rail N3205 passes through the slider N3111 on the unloading platform base 3100, the cylinder traction seat A3206 is connected to the cylinder D3115, and the cylinder D3115 drives the feeding conveyor E3200 to move up and down along the guide rail N3205 through the cylinder traction seat A3206.

[0067] like Fig.18 , 19As shown in Figure 21, the feeding and conveying device F3300 of the unloading platform 3000 includes a profile bracket D3307, a pulley support plate F3308 and a motor mounting bracket D3303 are fixed on both sides of the profile bracket D3307, a slide plate F3306 is fixed on the profile bracket D3307, a pulley H3309 is installed on the pulley support plate F3308, a reduction motor D3302 is installed on the motor mounting bracket D3303, a pulley G3301 is installed on the reduction motor D3302, and a conveyor belt D3301 is passed between the pulley G3301 and the pulley H3309. 10 connection, two parallel guide rails O3304 are vertically fixed on the skateboard F3306, a cylinder traction seat B3305 is fixed on the skateboard F3306, the reduction motor D3302 drives the pulley G3301 to rotate through the conveyor belt D3310, the guide rail O3304 passes through the slider M3103 on the unloading platform base 3100, the cylinder traction seat B3305 is connected with the cylinder C3114, and the cylinder C3114 drives the feeding conveyor F3300 to move up and down along the guide rail O3304 through the cylinder traction seat B3305.

[0068] like Fig. 22 , 23As shown, the assembled conveyor platform 4000 includes a conveyor platform base 4200, a lifting workbench 4100, and a feeding section electrical box 4300. The conveyor platform base 4200 includes a conveyor platform base frame 4203, six leveling bases 4204 are installed below the conveyor platform base frame 4203, a reduction motor E4208 is fixed on the conveyor platform base frame 4203, a double sprocket 4209 is installed on the reduction motor E4208, symmetrically arranged guide rails P4205 are fixed on the inner side surface of the conveyor platform base frame 4203, a cylinder mounting seat C4207 is fixed on the inner side surface of the conveyor platform base frame 4203, a cylinder E4206 is installed on the cylinder mounting seat C4207, a plurality of rollers 4201 are installed on the conveyor platform base frame 4203 through seat bearings 4202, one end of each roller 4201 is equipped with a double sprocket 4209, and the double sprocket on the reduction motor E4208 is fixed on the inner side surface of the conveyor platform base frame 4203. The sprocket 4209 and the double sprocket 4209 at one end of the outermost roller 4201 at the top are driven by the chain A4210, and the outermost roller 4201 and the adjacent roller 4201 are driven in turn by the chain B4211, so that the reduction motor E4208 drives all rollers 4201 to rotate; the lifting platform 4100 includes a lifting platform frame 4104, sliders P4103 are installed on both sides of the lifting platform frame 4104, cylinder traction seats C4101 are installed on both sides of the lifting platform frame 4104, fisheye bearings 4102 are installed on the cylinder traction seats C4101, the slider P4103 is connected to the guide rail P4205 on the conveying platform base 4200, the fisheye bearing 4102 is connected to the cylinder E4206 on the conveying platform base 4200, and the cylinder E4206 pushes the cylinder traction seat C4101 to drive the lifting platform 4100 to move up and down along the guide rail P4205.

[0069] The control system 5000 includes an operation console, on which are provided control buttons, an operating system and a touch display screen electrically connected to each other, and a multi-axis machining program software is installed in the operating system.

[0070] The working process of a CNC four-head automatic corner assembly production line of the present invention is as follows:

[0071] For the aluminum alloy doors and windows that need to be processed by corner assembly, after the angle code is manually inserted, they are placed in the lifting clamping device C and lifting clamping device D on the feeding conveyor device A, the lifting clamping device G on the feeding conveyor device B, and the cylinder clamping device H on the lifting clamping device. The start signal is manually given, the cylinder clamps, and the feeding conveyor device A and the feeding conveyor device B are started at the same time to send the doors and windows to be processed to the four corner areas composed of the corner assembly mechanism A, the corner assembly mechanism B, the corner assembly mechanism C, and the corner assembly mechanism D. The four lifting clamping devices fall down, and when the corner assembled doors and windows fall on the working tables of the four corner assembly mechanisms, the feeding conveyor device A and the feeding conveyor device B reverse, and the lifting clamping device C, the lifting clamping device D, the lifting clamping device G, and the lifting clamping device H return, and the lifting clamping device A, the lifting clamping device B, and the lifting clamping device Clamping device E and lifting clamping device F are in place; corner assembly mechanism A, corner assembly mechanism B, and corner assembly mechanism C move toward corner assembly mechanism D to the set corner assembly position, the main oil cylinders of corner assembly mechanism A, corner assembly mechanism B, corner assembly mechanism, and corner assembly mechanism D are actuated, the positioning devices of the four corner assembly mechanisms move into place, the punching and riveting mechanisms of the four corner assembly mechanisms are actuated, the punching and riveting cutters are extended to complete the four-corner corner assembly action and then retracted, the main oil cylinders of corner assembly mechanism A, corner assembly mechanism B, corner assembly mechanism C, and corner assembly mechanism D retract, corner assembly mechanism A, corner assembly mechanism B, and corner assembly mechanism C move away from the doors and windows, lifting clamping device A, lifting clamping device B, lifting clamping device E, and lifting clamping device F rise and grasp the profiles, and the feeding and conveying device A and the feeding and conveying device B operate to transport the assembled doors and windows out of the corner assembly station.

[0072] Feeding conveyor A and feeding conveyor B move to the set position, the movable head of the hinge punching machine moves to bring the material conveying device D to the bottom of the door and window, the lifting clamping device A, lifting clamping device B, lifting clamping device E, and lifting clamping device F fall down, and the assembled doors and windows are transported to the feeding conveying device C and feeding conveying device D of the hinge punching machine, the feeding conveying device A and feeding conveying device B return, and the feeding conveying device C and feeding conveying device D transport the doors and windows to the workbench B and workbench C of the hinge punching machine. When the doors and windows are transported to the detection switch, the feeding conveying device C and feeding conveying device D stop running, the inner clamping device A and inner clamping device B rise and clamp the inner side of the profile, the clamping device C and clamping device D vertically clamp the top of the doors and windows, the fixed head and the movable head move according to the set program, and the drilling process is performed on the doors and windows. After the drilling is completed, each clamping device retracts, the servo motor H of the unloading platform is activated, the feeding conveyor F is driven to the vicinity of the feeding conveyor D, the feeding conveyor E and the feeding conveyor F are raised, the feeding conveyor C and the feeding conveyor D motors are activated to convey the doors and windows to the unloading platform, and the motors on the feeding conveyor E and the feeding conveyor F are activated to convey the doors and windows to the front of the assembly workbench.

[0073] The assembly conveyor table is manually operated to lift and convey. The lifting workbench rises, and the doors and windows pass between the lifting workbench and the conveyor table base and are conveyed to the next workstation. The operator can operate on the workbench.

[0074] The present invention is not limited to the above-mentioned implementation modes, and anyone should be aware that any structural changes made under the enlightenment of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention.

[0075] The techniques, shapes, and structural parts not described in detail in the present invention are all well-known techniques.

Claims

1. A CNC four-head automatic corner assembly production line, characterized by: It includes an angle assembly machine, a hinge punching machine, a discharge platform, an assembly conveying platform, a control system, and a hydraulic system. The angle assembly machine, the hinge punching machine, the discharge platform, and the assembly conveying platform are sequentially arranged along the transmission direction of the doors and windows to form an assembly line. Multiple assembly conveying platforms are sequentially arranged. A control system and a hydraulic system are provided on one side of the angle assembly machine. The angle assembly machine includes an angle assembly machine base, a movable crossbeam, a fixed crossbeam, an angle assembly mechanism A, an angle assembly mechanism B, an angle assembly mechanism C, an angle assembly mechanism D, a feeding and conveying device A, and a feeding and conveying device B. A fixed crossbeam is installed on one side of the angle assembly machine base through a fixed base, and the movable crossbeam is connected with four sliders A and a ball screw nut seat A on the angle assembly machine base through the movable base. The angle assembly machine base includes a machine base A and two parallel guide rails A horizontally arranged on the machine base A. A ball screw transmission device A is fixed in the middle of the machine base A, two sliders A are arranged on each of the two guide rails A, and a ball screw nut A is arranged on the ball screw transmission device A. The ball screw nut A is connected to the ball screw nut seat A, and the ball screw transmission device A drives the ball screw nut seat A to drive the movable crossbeam to realize repeated movement along the direction of the guide rail A; the fixed crossbeam includes a fixed base, and four connecting blocks are fixed on one side of the fixed base. A, two parallel guide rails D perpendicular to the guide rail A are horizontally arranged above the fixed base, two sliders C are installed on each guide rail D, a ball screw transmission device B is fixed on the fixed base between the two guide rails D, two guide rails E are installed on the inner side of the fixed base, a rack A is horizontally installed on the upper side of the guide rail E, a ball screw nut B is installed on the ball screw transmission device B, and the ball screw nut B is connected to the ball screw nut seat B; the moving crossbeam includes a moving base, two parallel guide rails B perpendicular to the guide rail A are horizontally arranged above the moving base, two sliders B are installed on each parallel guide rail B, a ball screw transmission device C is fixed on the moving base between the two guide rails B, two guide rails C are vertically installed on the inner side of the moving base, a horizontally installed rack B is installed on the upper side of the guide rail C, a ball screw nut C is installed on the ball screw transmission device C, and the ball screw nut C is connected to the ball screw nut seat C; The hinge punching machine includes a punching machine base, a fixed machine head, a movable machine head, a feeding and conveying device C, and a feeding and conveying device D; the punching machine base includes a machine base B, two parallel guide rails F are horizontally fixed on the machine base B, two sliders F are arranged on each guide rail F, a movable machine head transmission device is arranged on the side wall of the machine base B, two chip boxes are arranged below the machine base B, the movable machine head transmission device includes a transmission seat A and a screw support A fixed on the side wall of the machine base B, a servo motor C is fixed on the transmission seat A, the servo motor C is connected to the transmission seat A and the screw support A through the screw A, and the screw A is connected to the nut seat A.

2. According to claim 1, a CNC four-head automatic corner assembly production line is characterized by: The corner assembly mechanism A includes a base plate, on which two sets of guide rail motion pairs A are diagonally arranged and fixed. A slide plate A is fixed on the guide rail motion pair A. The slide plate A is connected to the cylinder piston rod in the corner assembly feeding device to move the slide plate A along the direction of the guide rail motion pair A. The top of the slide plate A is connected to the workbench A. The bottom surface of the workbench A is equipped with a corner assembly positioning device. The workbench A is equipped with a corner assembly clamping device, a corner assembly punching and riveting device 1 and a corner assembly punching and riveting device 2. The corner assembly punching and riveting device 1 and the corner assembly punching and riveting device 2 are respectively equipped with a corner assembly punching and riveting knife 1 and a corner assembly punching and riveting knife 2.

3. According to claim 1, a CNC four-head automatic corner assembly production line is characterized by: The structures of the angle-combining mechanisms A, B, C and D are the same. The angle-combining mechanisms A and B are symmetrically installed above the moving crossbeam. The bottom of the angle-combining mechanism A is connected to the four sliders B on the moving crossbeam. The middle position of the bottom of the angle-combining mechanism A is connected to the ball screw nut seat C. The ball screw transmission device C drives the ball screw nut C to drive the angle-combining device A connected to the ball screw nut seat C to move along the guide rail C. The bottom of the angle-combining mechanism B is fixedly connected to the four connecting blocks B on the moving crossbeam. The angle-combining mechanisms C and D are installed on the fixed crossbeam. The bottom of the angle assembly mechanism C is connected to the four sliders C on the fixed beam, the middle position of the bottom of the angle assembly mechanism C is connected to the ball screw nut seat B, the ball screw transmission device B drives the ball screw nut B to drive the angle assembly mechanism C connected to the ball screw nut seat B to move along the guide rail D; the bottom of the angle assembly mechanism D is fixedly connected to the four connecting blocks A on the fixed beam; the angle assembly mechanism A, the angle assembly mechanism B, the angle assembly mechanism C, and the angle assembly mechanism D form four rectangular angle assembly riveting points, and the control system uniformly sends out simultaneous feeding, simultaneous positioning, simultaneous pressing, and simultaneous angle assembly riveting action signals.

4. According to claim 1, a CNC four-head automatic corner assembly production line is characterized by: The feeding and conveying devices A and B have the same structure after mirroring. The feeding and conveying device A includes a lifting clamping device A, a lifting clamping device B, a lifting clamping device C, and a lifting clamping device D. The lifting clamping device A, the lifting clamping device B, the lifting clamping device C, and the lifting clamping device D are all installed on the guide rail E of the fixed beam through four sliders D. The lifting clamping device A and the lifting clamping device C are fixed on the adjustment connecting beam A to keep the relative position fixed. A fixed connecting beam A is fixed between the lifting clamping device B and the lifting clamping device D. An adjustment locking plate A is fixed on the lifting clamping device D. The adjustment locking plate A is locked with the adjustment beam through the locking handle A and the locking handle B. The entire connecting beam A is connected, an adjustment locking plate B is fixed on the lifting clamping device B, and the adjustment locking plate B is connected to the adjustment connecting beam A through the locking handle C and the locking handle D. The relative positions of the lifting clamping device B and the lifting clamping device D relative to the lifting clamping device A and the lifting clamping device C can be adjusted by adjusting the locking handle A, the locking handle B, the locking handle C, and the locking handle D at the same time; a reducer A is installed on the lifting clamping device A, a servo motor A is installed on the upper end of the reducer A, and a gear A is installed on the lower end of the reducer A, and the gear A is meshed with the rack B on the fixed beam, and the servo motor A drives the reducer A to drive the gear A to make the feeding conveyor A move along the guide rail D on the fixed beam.

5. According to claim 1, the CNC four-head automatic corner assembly production line is characterized by: The feeding and conveying device B includes a lifting clamping device E, a lifting clamping device F, a lifting clamping device G, and a lifting clamping device H. The lifting clamping device E, the lifting clamping device F, the lifting clamping device G, and the lifting clamping device H are all installed on the guide rail C of the moving beam through four sliders E. The lifting clamping device E and the lifting clamping device G are fixed on the adjustment connecting beam B to keep the relative position fixed. A fixed connecting beam B is fixed between the lifting clamping device F and the lifting clamping device H. An adjustment locking plate C is fixed on the lifting clamping device H. The adjustment locking plate C is connected to the adjustment connecting beam B through the locking handle E and the locking handle F. The adjustment locking plate D is fixed on the lifting clamping device F. The adjustment locking plate D is connected to the adjustment connecting beam B through the locking handle G and the locking handle H. By adjusting the locking handle E, the locking handle F, the locking handle G, and the locking handle H at the same time, the relative positions of the lifting clamping device F and the lifting clamping device H relative to the lifting clamping device E and the lifting clamping device G can be adjusted; the lifting clamping device E is equipped with a reducer B, and the upper end of the reducer B is equipped with a servo motor B , gear B is installed at the lower end of reducer B, gear B is meshed with rack B on the moving beam, servo motor B drives reducer B to drive gear B to make feeding conveyor B move along the guide rail C on the moving beam; the control system sends simultaneous drive signals to feeding conveyor A and feeding conveyor B to move simultaneously; lifting clamping device C and lifting clamping device D on feeding conveyor A and lifting clamping device G and lifting clamping device H on feeding conveyor B are the first group of lifting clamping, and the first group of lifting clamping is set on the feeding conveyor At the left end of the feeding device A and the feeding conveyor B, the control system sends the same signal to lift and clamp simultaneously to feed the material to the corner punching and riveting position; the lifting and clamping device A and the lifting and clamping device B on the feeding conveyor A and the lifting and clamping device E and the lifting and clamping device F on the feeding conveyor B are the second group of lifting and clamping. The second group of lifting and clamping is arranged on the right end of the feeding conveyor A and the feeding conveyor B. The control system sends the same signal to lift and clamp simultaneously to discharge the material at the corner punching and riveting position, forming an alternating cycle of feeding and discharging actions.

6. The CNC four-head automatic corner assembly production line according to claim 1 is characterized by: The fixed head of the hinge punching machine is fixed on the machine base B through a fixed plate A. The fixed head includes a horizontal motion part 1, a vertical motion part 1, and a drilling power head 1. The horizontal motion part 1 includes a fixed plate A, a workbench B is fixed on the fixed plate A, a clamping device C is fixed on the workbench B, two parallel guide rails H are fixed on the fixed plate A, and two sliders G are installed on each guide rail H. Two conveying brackets A are fixed on one side of the fixed plate A close to the guide rail F, and a fixed head horizontal driving device is fixed above the fixed plate A between the two guide rails H. A transmission seat C is fixed on the fixed plate A, a servo motor E is fixed on the transmission seat C, a lead screw C is installed on the transmission seat C, and a nut seat C is installed on the lead screw C; the vertical motion part 1 includes a slide seat A installed on four sliders G, two parallel guide rails G are installed on the side of the slide seat A, and two guide rails G are installed on each guide rail G Slider H, a fixed machine head vertical drive device is vertically installed on the middle slide A of the two guide rails G, a transmission seat B is fixed on the slide A, a servo motor D is fixed on the transmission seat B, a screw B is installed on one side of the transmission seat B, the screw B is connected to the nut seat B, the nut seat C is connected to the slide A, and the servo motor E drives the nut seat C to drive the slide A to move repeatedly along the guide rail H direction; the drilling power head includes a slide plate B fixed on four slides H, two vertically installed parallel guide rails I are fixed on the slide plate B, two slides I are arranged on each guide rail I, a cylinder A is fixed on the slide plate B, a motor mounting plate A is installed on the four slides I, a spindle motor A with a tool is fixed on the motor mounting plate A, the cylinder A pushes the motor mounting plate A to move repeatedly along the guide rail I direction, the slide plate B is connected to the nut seat B, and the servo motor D drives the nut seat B to drive the slide plate B to move along the guide rail G direction.

7. The CNC four-head automatic corner assembly production line according to claim 1 is characterized by: The movable head of the hinge punching machine is fixed on four sliders F on the base of the punching machine through a fixed plate B. The movable head includes a horizontal motion part 2, a vertical motion part 2, and a drilling power head 2. The horizontal motion part 2 includes a fixed plate B, a workbench C is fixed on the fixed plate B, a clamping device D is fixed on the workbench C, two parallel guide rails K are horizontally fixed on the fixed plate B, and two sliders J are installed on each guide rail K. Two conveying brackets B are fixed on one side of the fixed plate B close to the guide rail F, and a movable head horizontal driving device is fixed above the fixed plate B between the two guide rails K. The movable head horizontal driving device includes a transmission seat E fixed on the fixed plate B, a servo motor G is fixed on the transmission seat E, a lead screw E is installed on the transmission seat E, and a nut seat E is installed on the lead screw E; the vertical motion part 2 includes a slide seat B installed on four sliders J, two parallel guide rails J are vertically arranged on the side of the slide seat B, and each guide rail G is Two sliders K are installed, and a movable head vertical driving device is vertically installed on the middle slide B of the two guide rails J. The movable head vertical driving device includes a transmission seat D fixed on the slide B, a servo motor F is fixed on the transmission seat D, a lead screw D is installed on the other side of the transmission seat D, a nut seat D is connected to the lead screw D, the nut seat E is connected to the slide B, and the servo motor G drives the nut seat E to drive the slide B to move repeatedly along the guide rail K direction; the drilling power head second includes a slide plate C fixed on four sliders K, two vertical parallel guide rails L are fixed on the slide plate C, two sliders L are arranged on each guide rail L, a cylinder B is fixed on the slide plate C, a motor mounting plate B is installed on the four sliders L, a spindle motor B with a tool is fixed on the motor mounting plate B, the cylinder B pushes the motor mounting plate B to move repeatedly along the guide rail L direction, the nut seat D is connected to the slide plate C, and the servo motor F drives the nut seat D to drive the slide plate C to move along the guide rail J direction.

8. The CNC four-head automatic corner assembly production line according to claim 1 is characterized by: The feeding and conveying device C is installed on two conveying brackets A on the fixed head, and the feeding and conveying device C includes a profile bracket A, a pulley support plate A is fixed on the profile bracket A, a pulley support plate B is fixed on the other side of the profile bracket A, a motor mounting bracket A is installed on the profile bracket A, a reduction motor A is installed on the motor mounting bracket A, an internal clamping device A for adjusting the tension of the pulley is installed on the profile bracket A, a pulley A is installed on the pulley support plate A, a pulley B is installed on the pulley support plate B, and the pulley A and the pulley B are connected by a conveyor belt A, the feeding and conveying device C is provided with a bracket A, the reduction motor A rotates to drive the pulley A to rotate, and the pulley B rotates through the conveyor belt A, and a guide bracket A is fixed on the vertical side of the profile bracket A; the hinge is opened The feeding and conveying device D of the hole machine is installed on two conveying brackets B fixed on the movable machine head. The feeding and conveying device D includes a profile bracket B, a pulley support plate C is fixed on the profile bracket B, a pulley support plate D is fixed on the other side of the profile bracket B, a motor mounting bracket B is installed on the profile bracket B, a reduction motor B is installed on the motor mounting bracket B, an internal clamping device B for adjusting the tension of the pulley is installed on the profile bracket B, a pulley D is installed on the pulley support plate D, a pulley C is installed on the pulley support plate B, and the pulley C and the pulley D are connected by a conveyor belt B. The feeding and conveying device D is provided with a bracket B, and the reduction motor B rotates to drive the pulley D to rotate, and the pulley C is driven to rotate through the conveyor belt B. A guide bracket B is installed on the vertical side of the profile bracket B.

9. The CNC four-head automatic corner assembly production line according to claim 1 is characterized by: The unloading platform includes a unloading platform base, a feeding and conveying device E, and a feeding and conveying device F. The unloading platform base includes a machine base C. The water on the machine base C Two parallel guide rails M are installed horizontally, and two sliders O are arranged on each guide rail M. A stand is fixed on the side of the machine base C away from the guide rail M, and a cylinder D is installed on the stand through a cylinder mounting seat B. Four sliders N are vertically installed on the stand, and a slide plate D is installed on the four slides N. Cylinder C is installed on the slide plate D through a cylinder mounting seat A. Four sliders M are vertically installed on the slide plate D. A discharge beam driving device is installed on the machine base C between the two guide rails M. A transmission seat F is fixed on the machine base C, and a screw support B is fixed on the other side of the machine base C. A servo motor H is fixed on the transmission seat F, a screw F is installed between the transmission seat F and the screw support B, a nut seat F is installed on the screw F, and the nut seat F is fixed on the slide plate D. The servo motor H drives the nut seat F to drive the slide plate D, and drives the feeding conveyor F to move along the direction of the guide rail M.

10. The CNC four-head automatic corner assembly production line according to claim 9, characterized in that: The feeding and conveying device E of the unloading platform includes a profile bracket C, a pulley support plate E and a motor mounting bracket C are respectively fixed on both sides of the profile bracket C, a slide plate E is fixed on the profile bracket C, a detection switch is fixed on the profile bracket C close to the motor mounting bracket C, a pulley E is installed on the pulley support plate E, a reduction motor C is installed on the motor mounting bracket C, a pulley F is installed on the reduction motor C, the pulley E and the pulley F are connected by a conveyor belt C, two parallel guide rails N are vertically fixed on the slide plate E, a cylinder traction seat A is fixed on the slide plate E, the reduction motor C drives the pulley F to rotate through the conveyor belt C, the guide rail N passes through the slider N on the base of the unloading platform, the cylinder traction seat A is connected to the cylinder D, and the cylinder D drives the feeding and conveying device E to move up and down along the guide rail N through the cylinder traction seat A.

11. The CNC four-head automatic corner assembly production line according to claim 9, characterized in that: The feeding and conveying device F of the unloading platform includes a profile bracket D, a pulley support plate F and a motor mounting bracket D are fixed on both sides of the profile bracket D, a skateboard F is fixed on the profile bracket D, a pulley H is mounted on the pulley support plate F, a reduction motor D is mounted on the motor mounting bracket D, a pulley G is mounted on the reduction motor D, the pulley G and the pulley H are connected by a conveyor belt D, two parallel guide rails O are vertically fixed on the skateboard F, a cylinder traction seat B is fixed on the skateboard F, the reduction motor D drives the pulley G to rotate through the conveyor belt D, the guide rail O passes through the slider M on the base of the unloading platform, the cylinder traction seat B is connected to the cylinder C, and the cylinder C drives the feeding and conveying device F to move up and down along the guide rail O through the cylinder traction seat B.

12. The CNC four-head automatic corner assembly production line according to claim 1, characterized in that: The assembled conveyor platform includes a conveyor platform base, a lifting workbench, and a feeding section electrical box. The conveyor platform base includes a conveyor platform base frame. Six leveling bases are installed under the conveyor platform base frame. A reduction motor E is fixed on the conveyor platform base frame. A double sprocket is installed on the reduction motor E. A symmetrically arranged guide rail P is fixed on the inner side of the conveyor platform base frame. A cylinder mounting seat C is fixed on the inner side of the conveyor platform base frame. A cylinder E is installed on the cylinder mounting seat C. A plurality of rollers are installed on the conveyor platform base frame through seat bearings. A double sprocket is installed at one end of each roller. The reduction motor E The double sprocket on the upper part and the double sprocket at one end of the outermost roller above are driven by chain A, and the outermost roller and the adjacent rollers are driven by chain B in turn, so that the reduction motor E drives all rollers to rotate; the lifting workbench includes a lifting platform frame, sliders P are installed on both sides of the lifting platform frame, cylinder traction seats C are installed on both sides of the lifting platform frame, fisheye bearings are installed on the cylinder traction seat C, the slider P is connected to the guide rail P on the base of the conveying platform, the fisheye bearing is connected to the cylinder E on the base of the conveying platform, and the cylinder E pushes the cylinder traction seat C to drive the lifting workbench to move up and down along the guide rail P.

13. The CNC four-head automatic corner assembly production line according to claim 1 is characterized by: The control system comprises an operation console, on which are arranged control buttons, an operating system and a touch display screen which are electrically connected to each other, and a multi-axis machining program software is installed in the operating system.

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