A door and window profile assembly production line

Abstract

The application discloses a door and window profile assembly production line, and belongs to the technical field of door and window processing, and solves the problems of inconvenient feeding and low fastening precision of existing equipment. The production line comprises a chassis, a truss, a fastening unit and a conveying unit. The fastening unit comprises two groups of movable beams, fixed seats, movable seats and four groups of opposite drilling and milling fastening machine heads arranged on the beams, and can synchronously press and hold and fasten four corners of a window frame. The conveying unit automatically clamps and conveys the window frame through a mechanical hand on a longitudinal beam, and realizes feeding and discharging automation. The drilling and milling fastening machine head can accurately position and complete drilling, milling and screw fastening. The mechanical hand adopts a lower supporting and upper pressing type clamping, a telescopic component is a multiple speed structure, and the equipment can also be matched with an assembling unit to realize flow operation. The application replaces manual carrying, improves assembly precision and efficiency, and guarantees product qualification rate.

Description

Technical Field

[0001] This invention belongs to the field of door and window processing technology, and specifically relates to a door and window profile assembly line. Background Technology

[0002] Frame assembly of door and window profiles is a crucial step in door and window manufacturing. After initial assembly, the four corners need to be secured using methods such as drilling, milling, and screwing to ultimately form a stable door and window frame. However, existing door and window profile frame assembly equipment has the following shortcomings in actual production applications: Existing frame assembly equipment typically lacks automated loading, unloading, and conveyor systems. After initial assembly, the window frames are structurally unstable, and relying on manual lifting and transport to the fastening equipment easily leads to wobbling and deformation, causing misalignment at the corner joints. Furthermore, some existing equipment cannot achieve simultaneous pressing and fastening at all four corners, often requiring multiple flips or adjustments to the window frame position, resulting in low production continuity and fastening accuracy. Summary of the Invention

[0003] To address the problems existing in the prior art, a door and window profile assembly line is proposed.

[0004] The technical solution of this invention to solve the technical problem is as follows: A door and window profile assembly line includes: a chassis, with a truss erected above the chassis; The fastening unit includes two sets of movable beams that are laterally slidably connected to the chassis. The movable beams are driven to move by a transverse moving component. Each movable beam is connected to a fixed seat and a movable seat that is driven to move longitudinally by a longitudinal moving component. Both the fixed seat and the movable seat are connected to a drilling and milling fastening head. The four sets of drilling and milling fastening heads are arranged facing each other. After pressing the four corners of the assembled window frame, drilling and milling and screw fastening are performed. The conveying unit includes a longitudinal beam connected to the truss along the longitudinal direction, which spans the fastening unit. Two robotic arms are connected to the longitudinal beam via a moving component. The robotic arms are positioned opposite each other. After the robotic arms move down to the bottom of the window frame via a telescopic component, they move in opposite directions to clamp the window frame and lift it up, thus realizing the feeding of the fastening unit and the unloading of the window frame after the fastening unit has been fastened.

[0005] Preferably, the drilling and milling fastening head includes: The base plate is fixed to a fixed seat or a movable seat; The clamping assembly includes a worktable connected to the base plate, with an outer top plate connected to each side of the worktable, forming an L-shaped working space between the two outer top plates; the top of the two outer top plates is connected to an upper mounting plate, and two second pressure plates are vertically slidably connected to the upper mounting plate, with each of the two second pressure plates pressing a window sash profile, thus pressing the two window sash profiles to be connected together on the worktable. Two sets of drilling and milling fastening assemblies are arranged perpendicularly on adjacent sides of the worktable. Each drilling and milling fastening assembly includes a movable plate that can move laterally and longitudinally on the base plate. A column is connected to the movable plate, and a lifting plate is vertically slidably connected to the column. A drilling and milling head and a screw mounting head that can move toward the workspace are connected to the lifting plate.

[0006] Preferably, the drilling and milling head includes a transverse sliding plate that is laterally slidably connected to the lifting plate. The transverse sliding plate is driven to move toward the workspace by a drilling and milling machine intake cylinder fixed on the lifting plate. A drilling and milling motor is fixedly connected to the transverse sliding plate, and the output end of the drilling and milling motor is connected to the milling cutter.

[0007] Preferably, the screw mounting head includes a positioning front plate and a driving rear plate that are laterally slidably connected to the lifting plate; a screw guide sleeve is connected to the positioning front plate, which can be positioned against the outside of the profile, and a screw fastening bit is connected to the screw guide sleeve that slides and rotates inside the screw guide sleeve; a fastening motor is connected to the driving rear plate, and the driving end of the fastening motor is connected to the screw fastening bit, which drives the screw fastening bit to rotate; after the screw guide sleeve is positioned, the driving rear plate can move toward the positioning front plate, driving the screw fastening bit to drive the screw into the profile; A positioning cylinder is fixedly connected to the transverse plate. The telescopic end of the positioning cylinder is connected to the positioning front plate, driving the positioning front plate to move. A fastening cylinder is connected to the driving rear plate. The telescopic end of the fastening cylinder is connected to the positioning front plate, enabling the driving rear plate to move toward the positioning front plate.

[0008] Preferably, the robotic arm includes: A movable beam has two vertical plates slidably connected to it, each vertical plate is connected to a vertical rod, and the bottom of the vertical rod is connected to a support rod. A fixed plate is also fixedly connected to the vertical rod, and a first cylinder is connected to the fixed plate. The telescopic end of the first cylinder faces downward and is connected to a first pressure plate. The first pressure plate is sleeved on the vertical rod and can move toward the support rod to press the profile onto the support rod. Two adjusting pulleys are rotatably connected to both ends of the moving beam; the two adjusting pulleys are connected to each other by an adjusting belt; a first belt plate is connected to each side of the adjusting belt, the first belt plate is clamped on the adjusting belt and moves with the adjusting belt, and the two first belt plates are respectively connected to two vertical plates, driving the two vertical plates to move in opposite directions.

[0009] Preferably, the telescopic component includes: The outer shell is connected to the moving component; a sliding housing is vertically slidably connected inside the outer shell, and a sliding plate is vertically slidably connected inside the sliding housing, with a robotic arm connected to the bottom of the sliding plate; A drive screw is rotatably connected to the top of the outer casing, and the drive screw is driven to rotate by a telescopic motor; a drive nut that cooperates with the drive screw is connected to the top of the corresponding sliding housing, and the drive nut drives the sliding housing to move vertically; Two driven pulleys are rotatably connected to the top and bottom of the sliding housing, respectively, and the two driven pulleys are connected by a driven belt drive. A second belt plate is connected to each side of the driven belt, one of which is fixed to the outer housing and the other is fixed to the sliding plate. When the sliding housing moves down, it can drive the driven belt to rotate, thereby causing the sliding plate to move down and extend out of the sliding housing.

[0010] Preferably, the moving component includes: The longitudinal sliding plate is slidably connected to the longitudinal beam, and the bottom of the longitudinal sliding plate is fixedly connected to the outer shell; A drive rack is fixed to the longitudinal beam along its length; a drive gear that meshes with the drive rack is rotatably connected to the corresponding longitudinal plate, and the rotation of the drive gear drives the longitudinal plate to move; a moving motor is also fixedly connected to the longitudinal plate, and the moving motor is fixed to the longitudinal plate and drives the drive gear to rotate. An auxiliary gear is located on one side of the drive gear and is connected to the drive rack to assist the longitudinal plate in moving.

[0011] Preferably, the lateral movement assembly includes several lateral movement guide rails arranged laterally on the chassis, and several sets of lateral movement guide blocks connected to the bottom of the movable beam to realize the lateral guidance of the movable beam; a lateral movement motor is connected to the middle of the chassis, and the output end of the lateral movement motor is connected to a double output shaft lead screw through a coupling. The two ends of the double output shaft lead screw are respectively rotatably connected to the two ends of the base plate; two lateral movement nuts are symmetrically connected to the double output shaft lead screw, and the lateral movement nuts are respectively connected to the bottom of the two movable beams to drive the movable beams to move in opposite directions.

[0012] Preferably, the longitudinal movement assembly includes a longitudinal movement screw rotatably connected to one side of the movable beam, a longitudinal movement nut being connected to the longitudinal movement screw, and the longitudinal movement nut being fixedly connected to the movable seat, thereby driving the movable seat to move toward the fixed seat; the longitudinal movement screw is driven to rotate by a longitudinal movement motor fixed to the end of the movable beam.

[0013] Preferably, the fastening unit is also connected to the front side of the assembly unit. The conveying unit transports the window frame assembled by the assembly unit to the fastening unit for feeding. The assembly unit includes an assembly base set in front of the chassis. Two assembly beams are connected to the assembly base. One assembly beam is fixed and the other assembly beam can slide longitudinally. Two assembly components are slidably connected on each assembly beam. The assembly components on the same assembly beam jointly press and fix the longitudinal profile. The assembly components on the same side of different assembly beams jointly press and fix the transverse profile. The assembly components can drive the transverse profiles on both sides to move and connect with the longitudinal profile, and assemble the four sets of profiles into a window frame.

[0014] Compared with existing technologies, the above technical solution has the following advantages or beneficial effects: 1. This invention utilizes a truss and conveying unit mounted above the chassis, with a robotic arm automatically lowering and lifting the window frame for loading and unloading. This replaces manual handling, avoids window frame deformation during transport, and ensures the tightness of corner seams. Simultaneously, the four sets of drilling and milling fastening heads in the fastening unit are arranged facing each other, enabling simultaneous pressing and drilling / milling fastening of the four corners of the window frame in one operation without the need for flipping, achieving efficient and high-precision assembly line operations.

[0015] 2. The drilling and milling fastening head of this invention features an L-shaped working space and a double second pressure plate structure, which can firmly and evenly press the two window sash profiles to be connected onto the worktable. The screw mounting head adopts a separate positioning front plate and driving rear plate design. First, the screw guide sleeve is used to hold the profile on the outside for precise positioning, and then the driving rear plate pushes the screw fastening bit to drive the screw in, avoiding the problems of screw misalignment and slippage that could scratch the profile.

[0016] 3. The robotic arm of this invention adopts a synchronous transmission structure. Through the transmission of two adjusting pulleys and an adjusting belt, the two first belt plates and the vertical plate move in opposite directions, ensuring the synchronous clamping action on both sides of the window frame and preventing the window frame from being squeezed and twisted. At the same time, in conjunction with the first cylinder driving the first pressure plate to press down, the profile is pressed against the bottom support rod, forming a stable locking of lower support and upper pressure, ensuring the safety of aerial transportation.

[0017] 4. The telescopic component of this invention adopts a composite speed-doubled telescopic structure. While the drive screw moves the sliding housing downwards, the driven belt fixed to the sliding housing rotates due to the constraint of the outer shell, thereby additionally driving the sliding plate to extend downwards. This design achieves double the downward stroke within a shorter physical height, reducing the overall height requirement of the equipment, making the equipment structure more compact, and achieving faster lifting speeds.

[0018] 5. The transverse and longitudinal moving components of this invention employ mechanical synchronous transmission. The double-output lead screw in the center of the chassis, in conjunction with the transverse nut, enables symmetrical counter-movement of the two moving beams via a single motor; combined with the longitudinal lead screw and gear rack structure, it allows the four drilling and milling fastening heads to quickly and automatically position themselves according to the set window frame dimensions. No manual verification is required, eliminating dimensional errors caused by asynchrony and ensuring the diagonal pass rate of door and window products. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0020] Figure 1 This is a schematic diagram of the production line structure of the present invention.

[0021] Figure 2This is a schematic diagram of the truss and conveyor unit structure.

[0022] Figure 3 This is a schematic diagram of the conveyor unit structure.

[0023] Figure 4 This is a schematic diagram of the mobile component structure.

[0024] Figure 5 This is a schematic diagram of the telescopic component structure.

[0025] Figure 6 This is a schematic diagram of the internal structure of the telescopic component.

[0026] Figure 7 This is a cross-sectional view of the retractable component.

[0027] Figure 8 This is a schematic diagram of the robotic arm structure.

[0028] Figure 9 This is a schematic diagram of the drilling and milling fastening assembly structure. Figure 1 .

[0029] Figure 10 This is a schematic diagram of the drilling and milling fastening assembly structure. Figure 2 .

[0030] Figure 11 This is a schematic diagram of the drilling and milling fastening assembly structure. Figure 3 .

[0031] Figure 12 This is a schematic diagram of the drill and milling head and screw mounting head structure.

[0032] Figure 13 This is a schematic diagram of the drill and milling head and screw mounting head structure after the motor has been removed.

[0033] Figure 14 This is a schematic diagram of the splicing unit structure.

[0034] Figure 15 yes Figure 14 Enlarged view of point A in the middle.

[0035] Figure 16 This is a schematic diagram of the splicing component structure.

[0036] Figure 17 This is a schematic diagram of the transverse and longitudinal movement components on the chassis.

[0037] Figure 18 This is a schematic diagram of the finished window frame.

[0038] Explanation of reference numerals in the attached figures: 1. Chassis; 2. Truss; 3. Fastening unit; 3100, movable beam; 3300, fixed seat; 3400, movable seat; 3200, Transverse traverse assembly; 3201, Transverse traverse guide rail; 3202, Transverse traverse guide block; 3203, Transverse traverse motor; 3204, Double output shaft lead screw; 3205, Transverse traverse nut; 3500. Drilling and milling fastening head; 3510. Base plate; 3520. Clamping assembly; 3521. Worktable; 3522. Outer top plate; 3523. Workspace; 3524. Upper mounting plate; 3525. Second pressure plate; 3526. First pressing cylinder; 3527. Lower mounting plate; 3528. Lower guide rod; 3529. Top holding cylinder; 35210. Lifting seat; 35211. Top holding block; 35212. Through slot; 35213. Second pressing cylinder; 35214. First flexible... Pressure head; 35215, support column; 3530, movable plate; 3540, column; 3550, lifting plate; 3560, drilling and milling head; 3561, transverse plate; 3562, drilling and milling inlet cylinder; 3563, drilling and milling motor; 3564, milling cutter; 3570, screw mounting head; 3571, positioning front plate; 3572, drive rear plate; 3573, screw guide sleeve; 3574, screw fastening bit; 3575, fastening motor; 3576, positioning cylinder; 3577, fastening cylinder; 3600, longitudinal traverse assembly; 3601, longitudinal traverse lead screw; 3602, longitudinal traverse nut; 3603, longitudinal traverse motor; 4. Conveying unit; 4100. Longitudinal beam; 4200, Moving component; 4201, Longitudinal transfer plate; 4202, Drive rack; 4203, Drive gear; 4204, Moving motor; 4205, Auxiliary gear; 4300, Robotic arm; 4301, Moving beam; 4302, Vertical plate; 4303, Vertical rod; 4304, Support rod; 4305, Fixed plate; 4306, First cylinder; 4307, First pressure plate; 4308, Adjusting pulley; 4309, Adjusting belt; 4310, First belt plate; 4400 Telescopic assembly; 4401 Outer shell; 4402 Sliding shell; 4403 Sliding plate; 4404 Drive screw; 4405 Telescopic motor; 4406 Drive nut; 4407 Driven pulley; 4408 Second belt plate; 4409 Driven belt; 5. Assembly unit; 5100. Assembly base; 5200. Assembly beam; 5300. Assembly component; 5301. First pressure seat; 5302. Second pressure seat; 5303. Assembly cylinder; 5400. First limit block; 5500. Second limit block; 5501. Inclined block; 5502. Flat block; 5600. Downward pressing fastener; 5601. Third pressure cylinder; 5602. Second flexible pressure head; 5700. Limit cylinder. Detailed Implementation

[0039] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure of the invention, components and arrangements of specific examples are described below. Furthermore, reference numerals and / or letters may be repeated in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted to avoid unnecessarily limiting the invention. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] I. Preferred Embodiments Please see Figures 1-18 This embodiment proposes a highly automated door and window profile assembly production line. Its overall structure mainly includes: a horizontally set chassis 1, a main truss 2 erected above the chassis 1, and assembly units 5, fastening units 3, and conveying units 4 responsible for the transfer of window frames arranged in sequence according to the process.

[0041] 1. Assembly Unit 5 The assembly unit 5 is located at the front of the production line, in front of the fastening unit 3, and is used for the initial alignment and seamless splicing of the four-sided profiles of doors and windows. It includes an assembly base 5100 fixed to the front of the chassis 1, on which two assembly beams 5200 are horizontally mounted. One beam is fixed, while the other can be adjusted longitudinally along the assembly base 5100 via a screw and nut mechanism to accommodate different window frame widths. Two sets of assembly components 5300 are slidably mounted on each assembly beam 5200.

[0042] Assembly components 5300 on the same assembly beam 5200 collaboratively press the longitudinal profiles, while assembly components 5300 on the same side of different assembly beams 5200 collaboratively press the transverse profiles. The assembly component 5300 adopts a split-linkage design, including a first pressing seat 5301 (as a drive seat) and a second pressing seat 5302 (as a driven seat), connected by an assembly cylinder 5303. Both seats are equipped with a pressing fixing member 5600, which specifically consists of a third pressing cylinder 5601 and a second flexible pressing head 5602 connected to its telescopic end.

[0043] First limiting blocks 5400 are fixed to the outer sides of both the first pressing seat 5301 and the second pressing seat 5302, with the outer side of the profile tightly against their inner sides to achieve outer contour reference limiting. To ensure that corner splicing does not cause misalignment, each assembly component 5300 is also equipped with a second limiting block 5500 that is driven to rise and fall vertically by a limiting cylinder 5700. The second limiting block 5500 is composed of an inclined block 5501 and a flat block 5502, which together form a triangular limiting space. A photoelectric detection sensor can be embedded at the junction of the first limiting block 5400 and the second limiting block 5500. Only when the sensor detects that the end face of the profile is completely in contact with the two limiting blocks is the third pressing cylinder 5601 allowed to operate, completely eliminating the problem of excessive splice gaps caused by manual material feeding.

[0044] Action logic: When the profile is placed, the limiting cylinder 5700 pushes out the second limiting block 5500, and the end corner of the profile is locked into the triangular limiting space to complete the positioning; after the third pressing cylinder 5601 presses down the second flexible pressing head 5602 to lock the profile, the limiting cylinder 5700 drives the second limiting block 5500 to fall back and avoid; finally, the assembly cylinder 5303 retracts, pulling the second pressing seat 5302 and the transverse profile towards the first pressing seat 5301 and the longitudinal profile, pressing the L-shaped connector into the butt joint, and completing the initial assembly.

[0045] 2. Fastening Unit 3 After initial assembly, the window frame is fed into the fastening unit 3 by the conveying unit 4. A transverse motor 3203 is installed in the middle of the chassis 1 of the fastening unit 3, which is connected to a double-output lead screw 3204 via a coupling. The lead screw has threads with opposite directions at both ends, which, together with the transverse nut 3205, form a transverse assembly 3200, driving two movable beams 3100 to move symmetrically laterally along the transverse guide rail 3201 and transverse guide block 3202 on the chassis 1, with the conveying unit 4 as the central axis. Fixed seats 3300 and movable seats 3400 are mounted on the movable beams 3100. A longitudinal motor 3603 at the end drives the movable seat 3400 to move longitudinally via the longitudinal lead screw 3601 and longitudinal nut 3602 (forming the longitudinal assembly 3600). In this way, four sets of drilling and milling fastening heads 3500 can automatically position themselves at the four corners according to the window frame dimensions set in the program. Each drilling and milling fastening head 3500 includes: (1) Clamping assembly 3520: The clamping assembly 3520 is used to press the edges and corners of the profile to fix the profile and facilitate subsequent drilling, milling and screw fastening. The front end of the base plate 3510 is supported by a support column 35215 to support the worktable 3521. A lower mounting plate 3527 is provided below the worktable 3521. The lower mounting plate 3527 is connected to the worktable 3521 through a lower guide rod 3528. The top-holding cylinder 3529 fixed on the lower mounting plate 3527 drives the lifting seat 35210 sleeved on the lower guide rod 3528 to slide vertically. The top-holding block 35211 connected to the top of the lifting seat 35210 can pass through the through groove 35212 of the worktable 3521 to flatten the bottom surface of the profile from the bottom. The two outer top plates 3522 above the workbench 3521 are arranged in an L-shape, forming a working space 3523 between them. The top of the outer top plates 3522 is connected to the upper mounting plate 3524. The upper mounting plate 3524 not only drives the second pressure plate 3525 via the first pressing cylinder 3526, but also, guided by the upper guide rod in the guide hole, presses down the two profiles forming the corners. Furthermore, a second pressing cylinder 35213 and a first flexible pressure head 35214 driven by the second pressing cylinder 35213 are added directly above the joint of the profiles, directly pressing down the joint. This forms a three-dimensional locking system of lower support, lateral restraint, and upper double pressing.

[0046] (2) Connecting assembly for adjusting the position of the drilling and milling fastening assembly: The movable plate 3530 achieves XY axis transfer through the connecting assembly. The connecting assembly includes a Y-axis lead screw and a Y-axis nut mounted on the base plate 3510 and driven by the Y-axis motor. The Y-axis nut drives the intermediate plate to move longitudinally along the first slide rail slider; the X-axis lead screw and X-axis nut on the intermediate plate are driven by the X-axis motor, which drive the movable plate 3530 to move laterally along the second slide rail slider. To prevent the drilling and milling head 3560 or the screw mounting head 3570 from prematurely colliding with the outer top plate 3522 or the profile due to excessive forward movement, limit bosses are installed at both ends of the slide rail.

[0047] (3) Two sets of drilling and milling fastening assemblies are arranged perpendicularly on adjacent sides of the worktable 3521: a column 3540 is fixed on the movable plate 3530, and the column 3540 drives the lifting plate 3550 to move along the Z-axis through a lifting motor (preferably a brake motor with a self-locking function or a worm gear reducer) and a lifting screw at its top. In addition, a stabilizing cylinder is provided at the top of the column 3540 to provide constant pneumatic flexible damping after the lifting plate 3550 is in place, eliminate the mechanical backlash of the screw, and absorb drilling and milling vibration. The drilling and milling head 3560 and the screw mounting head 3570 are integrated side by side on the lifting plate 3550. The drilling and milling head 3560 is pushed and pulled by the drilling and milling feed cylinder 3562 fixed on the lifting plate 3550, and the drilling and milling motor 3563 on the transverse plate 3561 drives the milling cutter 3564 to process. A cooling system is provided on the side, and a micro-lubrication pump sprays the cutting fluid in the cooling tank onto the tool through the nozzle. The screw mounting head 3570 is divided into a positioning front plate 3571 and a driving rear plate 3572. An extension plate extends from the rear side of the positioning front plate 3571, forming a lateral space below for the rear plate to slide. The front end of the front plate is connected to the screw guide sleeve 3573 through an L-shaped plate and a guide sleeve seat.

[0048] The screw mounting head 3570 can be further integrated with an automatic screw feeding mechanism via a vibratory feeder. The vibratory feeder is connected to the screw guide sleeve 3573 via a pneumatic feeding tube. Before each tightening, the pneumatic tube blows a single screw into the screw guide sleeve 3573, where it is attracted and screwed in by the magnetically attached screwdriver bit 3574, achieving unmanned tightening operation.

[0049] During processing, the positioning cylinder 3576 first pushes the front plate to press the guide sleeve against the end face of the profile, and then the fastening cylinder 3577 pushes the rear plate. The fastening motor 3575 drives the screw fastening bit 3574 to screw in the screw. After completion, the ejector assembly on the mounting column fixed on the movable plate 3530 forces the finished product to be demolded and ejected. The ejector assembly includes an ejector cylinder fixed on the mounting column. The ejector cylinder drives the ejector rod to pass through the ejector hole of the outer top plate 3522, separating the finished product from the clamping assembly 3520 to prevent adhesion.

[0050] 3. Conveying Unit 4 The conveying unit 4 includes a longitudinal beam 4100 fixed on the truss 2. Two opposing robotic arms 4300 are connected to the longitudinal beam 4100 via a moving component 4200. The robotic arms 4300 are lifted and lowered via a telescopic component 4400. A lifting space is formed between the two sets of robotic arms 4300, which can lift the pre-assembled window frame or the fastened window frame to realize material feeding and unloading.

[0051] (1) Moving component 4200: A drive rack 4202 is fixed on the side of the longitudinal beam 4100 along the length direction. The longitudinal plate 4201 is slidably engaged on the longitudinal beam 4100. A moving motor 4204 is installed on the longitudinal plate 4201. The moving motor 4204 drives a drive gear 4203 to roll along the drive rack 4202, thereby driving the entire longitudinal plate 4201 to translate along the longitudinal beam 4100. An auxiliary gear 4205 is also connected to the longitudinal plate 4201 on one side of the drive gear 4203. The auxiliary gear 4205 rotates to assist the longitudinal plate 4201 when it moves, ensuring the stability of the movement.

[0052] (2) Telescopic assembly 4400: A housing 4401 is fixed to the bottom of the longitudinal plate 4201. A sliding housing 4402 is vertically slidably inserted inside the housing 4401, and a sliding plate 4403 is vertically slidably inserted inside the sliding housing 4402. A robot arm 4300 is connected to the bottom of the sliding plate 4403. A telescopic motor 4405 is fixed to the top of the housing 4401, which drives a vertical drive screw 4404 to rotate. The drive screw 4404 passes through the drive nut 4406 at the top of the sliding housing 4402, driving the sliding housing 4402 to perform the first stage of lifting. A driven pulley 4407 is rotatably connected to each of the upper and lower ends of the sliding housing 4402, and a driven belt 4409 is connected between the two driven pulleys 4407. One side of the driven belt is fixed to the housing 4401 by a second belt plate 4408, and the other side is fixed to the sliding plate 4403 by another second belt plate 4408. When the sliding housing 4402 moves downward, the pulley is forced to rotate because one side of the driven belt 4409 is pulled by the outer housing 4401, thereby driving the sliding plate 4403 on the other side of the driven belt to extend downward at twice the speed.

[0053] (3) Robot 4300: A movable beam 4301 is fixed to the bottom of the sliding plate 4403. Adjusting pulleys 4308 are rotatably provided at both ends of the movable beam 4301, and an adjusting belt 4309 is sleeved between the two adjusting pulleys 4308. A vertical plate 4302 is fixed to each side of the adjusting belt 4309 by a first belt plate 4310. The two first belt plates 4310 move in opposite directions. The driving pulley is driven to rotate by the adjusting motor fixed on the movable beam 4301. The driving pulley is connected to the adjusting belt 4309 and drives the adjusting belt 4309 to rotate, so that the two vertical plates 4302 can be synchronously brought together or separated. In addition, a tensioning pulley is provided on each side of the driving pulley. The tensioning pulley is rotatably connected to the tensioning plate. The tensioning plate is laterally slidably connected to the groove opened at the top of the movable beam 4301 and is locked in position by screws to achieve tensioning of the adjusting belt 4309. A vertical rod 4303 is connected below the vertical plate 4302. A support rod 4304 extends horizontally from the lowest end of the vertical rod 4303 to support the profile at the bottom of the window frame. The support rod 4304 is rotatably connected to the bottom of the vertical rod 4303 and is wrapped with a flexible pad to prevent scratching the profile. A fixing plate 4305 and a first cylinder 4306 are fixed above the vertical rod 4303. The first cylinder 4306 pushes down the first pressure plate 4307 sleeved on the vertical rod 4303, tightly clamping the profile between the first pressure plate 4307 and the support rod 4304 to prevent it from falling or misaligning during high-altitude transport.

[0054] II. Equivalent Implementation Methods and Replacement Solutions To adapt to different workshop environments, cost budgets, or the needs of specific profiles, those skilled in the art can make the following equivalent substitutions to the above embodiments without departing from the core concept of the present invention, and all such substitutions fall within the protection scope of the present invention: 1. Equivalent replacement within conveyor unit 4: Lateral movement replacement: In the above embodiment, the longitudinal traverse plate 4201 moves along the longitudinal beam 4100 using a rack and pinion drive. In an equivalent embodiment, the lateral movement component 3200 can be replaced with a synchronous belt linear module (driven by a servo motor to move the longitudinal traverse plate 4201 via a long-stroke synchronous belt, suitable for light loads and high speeds), or replaced with a ball screw drive mechanism (suitable for heavy loads and extremely high-precision positioning).

[0055] Replacement of the opening and closing drive for vertical plate 4302: The opposing retraction mechanism of the robotic arm 4300, namely the adjusting pulley 4308 and adjusting belt 4309, can be replaced by a two-way screw drive structure. The two ends of a screw are respectively machined with left-hand and right-hand threads. The two vertical plates 4302 are connected to corresponding nuts, and the motor rotation can realize the opposing movement; or the centralized motor can be eliminated and a dual-cylinder direct drive can be adopted, that is, two sets of long-stroke cylinders are symmetrically installed at both ends of the moving beam 4301 to directly push the two vertical plates 4302 to move.

[0056] 2. Equivalent replacement for the 4400 telescopic component drive unit: Direct drive replacement: In the above-mentioned telescopic assembly 4400, the components driving the inner sliding housing 4402 are a telescopic motor 4405 and a drive screw 4404. In an equivalent embodiment, this driving component can be directly replaced by a multi-stage hydraulic cylinder or a drive cylinder fixed inside the outer housing 4401, with the piston rod of the cylinder directly connected to the sliding housing 4402.

[0057] Flexible transmission component replacement: In addition to using a toothed synchronous belt, the driven belt of the linkage sliding plate 4403 can also be replaced by an industrial chain with sprockets or a high-strength steel belt.

[0058] 3. Equivalent replacement for the 4300 robotic arm: In some workshops where it is inconvenient to access an air source, the first cylinder 4306 on the vertical rod 4303 can be replaced by a miniature electric push rod, which controls the clamping force of the second pressure plate 3525 through servo current feedback.

[0059] If processing specific door and window profiles containing steel linings, the second pressure plate 3525 can replace or integrate electromagnetic components (electromagnetic chucks), using magnetic attraction as an auxiliary fixing method to replace pure physical pressing.

[0060] 4. Equivalent replacement for the guide mechanism of telescopic assembly 4400: The linear guidance between the housings in the telescopic assembly 4400 can be achieved by using guide rails and guide blocks, dovetail grooves machined inside the housing walls, or a cylindrical guide fit structure of guide rods and linear bushings, in order to reduce manufacturing costs.

[0061] III. Overall Working Process of the Production Line S1. Assembly: Workers or robotic arms 4300 place the four cut door and window profiles into the assembly unit 5, and insert connectors (L-shaped corner brackets) into the two horizontally arranged profile splicing surfaces. Limit cylinder 5700 pushes out the second limit block 5500 to achieve precise diagonal alignment; the third pressing cylinder 5601 presses the profiles tightly through the second flexible pressing head 5602; the second limit block 5500 descends. Subsequently, the assembly cylinder 5303 retracts, bringing adjacent profiles closer together and tightening the pre-placed connectors, completing the initial assembly.

[0062] S2. Grabbing: The conveyor unit 4 moves laterally into position. The telescopic motor 4405 inside the telescopic assembly 4400 starts, driving the lead screw 4404 to rotate and push the sliding housing 4402 down. At the same time, through the speed-multiplying linkage of the driven belt, the sliding plate 4403 drives the robot arm 4300 to dive deep below the height of the profile.

[0063] S3. Opposing clamping and transport: The adjusting motor of the robotic arm 4300 drives the adjusting belt 4309, and the two vertical plates 4302 move towards each other, so that the four sets of support rods 4304 are inserted into the four bottom corners of the window frame; then the first cylinder 4306 presses down the first pressure plate 4307 to lock the profile. The telescopic assembly 4400 retracts, lifting the window frame and moving it to be placed directly above the fastening unit 3 before lowering it.

[0064] S4. Four-corner synchronous drilling and milling fastening: The transverse motor 3203 and longitudinal motor 3603 of fastening unit 3 adjust the four sets of machine heads into position. The top-holding cylinder 3529 at the bottom of the machine head lowers and holds the bottom surface of the profile; the first pressing cylinder 3526 and the second pressing cylinder 35213 above lock the corners. Subsequently, the stabilizing cylinder eliminates the gap, the micro-lubrication pump sprays coolant, and the drilling and milling feed cylinder 3562 pushes the cutter to complete the opening. Finally, the positioning cylinder 3576 pushes the front plate to complete the positioning of the guide sleeve end face, the fastening cylinder 3577 pushes the rear plate, and the screw fastening bit 3574 screws in the screw.

[0065] S5. Demolding and Unloading: After tightening, the two holding cylinders are released, and the pushing cylinder pushes the pushing rod to eject the finished window frame from the worktable 3521. The conveying unit 4 grabs it again and sends it into the next stacking process, and the production line resets to enter the next automatic cycle.

[0066] It should be noted that the present invention protects the system concept of a door and window profile assembly line. The fastening unit 3, conveying unit 4, and assembly unit 5, as well as the further defined mechanisms, are clearly described in the specification, including their cooperative relationships and functions. Those skilled in the art, upon understanding the above functions and corresponding cooperative connections, can deduce or extrapolate the control connections, drive sequence, and drive time of each electrical component without expending any labor. Therefore, the specific control circuit system will not be described in detail here. It is worth noting that in the above embodiments, all electrical components used (such as various drive motors, telescopic units, worm gear reducers, rotary motors, etc.) are electrically connected to an external power supply through a controller (such as a PLC controller or a microcontroller). The controller can send control commands according to the working status of the cutting device or a preset program to realize the coordinated action of each drive unit.

[0067] A distribution cabinet is installed on the side of the fastening unit 3, the conveying unit 4 and the assembly unit 5, and a main distribution cabinet is installed on the side of the wire pressing measuring mechanism, and is equipped with a main controller.

[0068] The distribution cabinet integrates electrical control components such as circuit breakers, relays, contactors, and power modules for power distribution and protection of various electrical components. The cabinet door is designed to be openable for easy access to the internal electrical components for inspection and maintenance. Electrical schematics and operating instructions are affixed to the inside of the door, allowing operators to quickly understand the circuit structure and troubleshoot problems. The controller (such as a PLC controller or microcontroller) of the distribution cabinet is usually integrated into or near a control box, connected via cables to the electrical components within the distribution cabinet and to the various actuators on the fastening unit 3, conveying unit 4, and assembly unit 5, forming a complete electrical control system. Operators can use an operating panel (not shown in the figure) located at the front of the production line or other conveniently accessible locations to set parameters, control start / stop, and monitor the status of the cutting device. The operating panel typically includes a display screen, buttons, and indicator lights to enable human-machine interaction. The power distribution cabinet, PLC controller, and operation panel are all existing conventional technologies. Those skilled in the art can independently build a complete electrical control system by combining the action sequence logic described in this manual without any additional creative work. The specific setting method can be selected according to the actual use needs. The detailed setting method will not be elaborated here.

[0069] Although the specific embodiments of the invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the invention. Based on the technical solutions of the invention, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the invention.

Claims

1. A door and window profile assembly line, characterized in that, include: Chassis (1), truss (2) is erected on top of chassis (1); The fastening unit (3) includes two sets of movable beams (3100) that are laterally slidably connected to the chassis (1). The movable beams (3100) are driven to move by the transverse moving assembly (3200). Each movable beam (3100) is connected to a fixed seat (3300) and a movable seat (3400) that is driven to move longitudinally by the longitudinal moving assembly (3600). Both the fixed seat (3300) and the movable seat (3400) are connected to a drilling and milling fastening head (3500). The four sets of drilling and milling fastening heads (3500) are arranged diagonally towards each other. After the four corners of the window frame are pressed and assembled, drilling and milling and screw fastening are performed. The conveying unit (4) includes a longitudinal beam (4100) connected longitudinally to the truss (2), and the longitudinal beam (4100) spans the fastening unit (3); two robotic arms (4300) are connected to the longitudinal beam (4100) through a moving component (4200), and the two robotic arms (4300) are set opposite each other. After the robotic arms (4300) move down to the bottom of the window frame through the telescopic component (4400), they move opposite each other to clamp the window frame and lift the window frame, thereby realizing the feeding and discharging of the fastening unit (3).

2. The door and window profile assembly line according to claim 1, characterized in that, The drilling and milling fastening head (3500) includes: The base plate (3510) is fixed to a fixed seat (3300) or a movable seat (3400); The clamping assembly (3520) includes a worktable (3521) connected to a base plate (3510), with an outer top plate (3522) connected to each side of the worktable (3521), forming an L-shaped working space (3523) between the two outer top plates (3522); the tops of the two outer top plates (3522) are connected to an upper mounting plate (3524), and two second pressure plates (3525) are vertically slidably connected to the upper mounting plate (3524), each of the two second pressure plates (3525) pressing a window sash profile, thus pressing the two window sash profiles to be connected together onto the worktable (3521); Two sets of drilling and milling fastening assemblies are arranged perpendicularly to each other on adjacent sides of the worktable (3521); the drilling and milling fastening assemblies include a movable plate (3530) that can move laterally and longitudinally on the base plate (3510), a column (3540) is connected to the movable plate (3530), a lifting plate (3550) is vertically slidably connected to the column (3540), and a drilling and milling head (3560) and a screw mounting head (3570) that can move toward the workspace (3523) are connected to the lifting plate (3550).

3. The door and window profile assembly line according to claim 2, characterized in that: The milling head (3560) includes a transverse plate (3561) that is laterally slidably connected to the lifting plate (3550). The transverse plate (3561) is driven to move toward the workspace (3523) by a milling machine intake cylinder (3562) fixed on the lifting plate (3550). A milling machine motor (3563) is fixedly connected to the transverse plate (3561), and the output end of the milling machine motor (3563) is connected to the milling cutter (3564).

4. A door and window profile assembly line according to claim 2, characterized in that: The screw mounting head (3570) includes a positioning front plate (3571) and a drive rear plate (3572) that are laterally slidably connected to the lifting plate (3550); a screw guide sleeve (3573) is connected to the positioning front plate (3571), which can be positioned against the outside of the profile; a screw fastening bit (3574) is connected to the screw guide sleeve (3573) that slides and rotates inside the screw guide sleeve (3573); a fastening motor (3575) is connected to the drive rear plate (3572), and the drive end of the fastening motor (3575) is connected to the screw fastening bit (3574), which drives the screw fastening bit (3574) to rotate; after the screw guide sleeve (3573) is positioned, the drive rear plate (3572) can move toward the positioning front plate (3571), which drives the screw fastening bit (3574) to drive the screw into the profile; A positioning cylinder (3576) is fixedly connected to the lifting plate (3550). The telescopic end of the positioning cylinder (3576) is connected to the positioning front plate (3571) to drive the positioning front plate (3571) to move. A fastening cylinder (3577) is connected to the driving rear plate (3572). The telescopic end of the fastening cylinder (3577) is connected to the positioning front plate (3571) to drive the rear plate (3572) to move toward the positioning front plate (3571).

5. A door and window profile assembly line according to claim 1, characterized in that, The robotic arm (4300) includes: A movable beam (4301) is slidably connected to two vertical plates (4302), each vertical plate (4302) is connected to a vertical rod (4303), and the bottom of the vertical rod (4303) is connected to a support rod (4304); a fixed plate (4305) is also fixedly connected to the vertical rod (4303), and a first cylinder (4306) is connected to the fixed plate (4305). The telescopic end of the first cylinder (4306) faces downward and is connected to a first pressure plate (4307). The first pressure plate (4307) is sleeved on the vertical rod (4303), and the first pressure plate (4307) can move toward the support rod (4304) to press the profile onto the support rod (4304); Two adjusting pulleys (4308) are rotatably connected to both ends of the moving beam (4301); the two adjusting pulleys (4308) are connected by an adjusting belt (4309); a first belt plate (4310) is connected to each side of the adjusting belt (4309), the first belt plate (4310) is clamped on the adjusting belt (4309) and moves with the adjusting belt (4309), the two first belt plates (4310) are respectively connected to two vertical plates (4302), driving the two vertical plates (4302) to move in opposite directions.

6. A door and window profile assembly line according to claim 1 or 5, characterized in that, The telescopic assembly (4400) includes: The outer shell (4401) is connected to the moving component (4200); a sliding housing (4402) is vertically slidably connected inside the outer shell (4401), and a sliding plate (4403) is vertically slidably connected inside the sliding housing (4402), with a robot arm (4300) connected to the bottom of the sliding plate (4403). A drive screw (4404) is rotatably connected to the top of the outer shell (4401), and the drive screw (4404) is driven to rotate by a telescopic motor (4405); a drive nut (4406) is connected to the top of the corresponding sliding shell (4402) and is engaged with the drive screw (4404), and the drive nut (4406) drives the sliding shell (4402) to move vertically; Two driven pulleys (4407) are rotatably connected to the top and bottom of the sliding housing (4402), respectively. The two driven pulleys (4407) are connected to each other by a driven belt (4409). A second belt plate (4408) is connected to each side of the driven belt (4409). One second belt plate (4408) is fixed on the outer housing (4401), and the other second belt plate (4408) is fixed on the sliding plate (4403). When the sliding housing (4402) moves down, it can drive the driven belt to rotate, thereby causing the sliding plate (4403) to move down and extend out of the sliding housing (4402).

7. A door and window profile assembly line according to claim 6, characterized in that, The mobile component (4200) includes: The longitudinal sliding plate (4201) is slidably connected to the longitudinal beam (4100), and the bottom of the longitudinal sliding plate (4201) is fixedly connected to the outer shell (4401). A drive rack (4202) is fixed along the length of the longitudinal beam (4100); a drive gear (4203) that meshes with the drive rack (4202) is rotatably connected to the corresponding longitudinal plate (4201), and the drive gear (4203) rotates to drive the longitudinal plate (4201) to move; a moving motor (4204) is also fixedly connected to the longitudinal plate (4201), and the moving motor (4204) is fixed to the longitudinal plate (4201) and drives the drive gear (4203) to rotate; An auxiliary gear (4205) is located on one side of the drive gear (4203) and is connected to the drive rack (4202) to assist the longitudinal plate (4201) in moving.

8. A door and window profile assembly line according to claim 1, characterized in that: The transverse component (3200) includes several transverse guide rails (3201) arranged transversely on the chassis (1), and several sets of transverse guide blocks (3202) connected to the bottom of the movable beam (3100) to realize the transverse guidance of the movable beam (3100); the middle part of the chassis (1) is connected to the transverse motor (3203), and the output end of the transverse motor (3203) is connected to the double output screw (3204) through the coupling. The two ends of the double output screw (3204) are respectively rotatably connected to the two ends of the base plate (3510); two transverse nuts (3205) are symmetrically connected on the double output screw (3204), and the transverse nuts (3205) are respectively connected to the bottom of the two movable beams (3100) to drive the movable beams (3100) to move in opposite directions.

9. A door and window profile assembly line according to claim 1, characterized in that: The longitudinal movement assembly (3600) includes a longitudinal movement screw (3601) rotatably connected to one side of the movable beam (3100), a longitudinal movement nut (3602) connected to the longitudinal movement screw (3601), and the longitudinal movement nut (3602) being fixedly connected to the movable seat (3400), thereby driving the movable seat (3400) to move toward the fixed seat (3300); the longitudinal movement screw (3601) is driven to rotate by a longitudinal movement motor (3603) fixed to the end of the movable beam (3100).

10. A door and window profile assembly line according to claim 1, characterized in that: The fastening unit (3) is also connected to the assembly unit (5). The conveying unit (4) transports the assembled window frame of the assembly unit (5) to the fastening unit (3) to realize feeding. The assembly unit (5) includes an assembly base (5100) set in front of the chassis (1). Two assembly beams (5200) are connected on the assembly base (5100). One assembly beam (5200) is fixed, and the other assembly beam (5200) can slide along the longitudinal direction. Two assembly components (5300) are slidably connected on each assembly beam (5200). The assembly components (5300) on the same assembly beam (5200) jointly press and fix the longitudinal profile. The assembly components (5300) on the same side of different assembly beams (5200) jointly press and fix the transverse profile. The assembly components (5300) can drive the transverse profiles on both sides to move and connect with the longitudinal profile, and connect and assemble the four sets of profiles into a window frame.

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