CN107639843B - Four-corner welding machine and welding method for welding plastic doors and windows - Google Patents
Four-corner welding machine and welding method for welding plastic doors and windows Download PDFInfo
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- CN107639843B CN107639843B CN201711048884.8A CN201711048884A CN107639843B CN 107639843 B CN107639843 B CN 107639843B CN 201711048884 A CN201711048884 A CN 201711048884A CN 107639843 B CN107639843 B CN 107639843B
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Abstract
The application relates to a four-corner welding machine for welding plastic doors and windows and a welding method, which comprises a machine base, wherein a left machine frame and a right machine frame are arranged on the machine base, the left machine frame is fixed at the left end of the machine base, the right machine frame is driven by a driving device to slide left and right along the machine base, one end of the left machine frame is provided with a left lower machine head, the other end of the left machine frame is provided with a left upper machine head, one end of the right machine frame is provided with a right lower machine head, the other end of the right machine frame is provided with a right upper machine head, the left upper machine head and the right upper machine head are driven by the driving device to slide back and forth along the directions of the left lower machine head and the right lower machine head, the inner sides of the left machine frame and the right machine frame are provided with conveying mechanisms for conveying sectional materials, one side of the machine base is also provided with a control cabinet, and one side of the control cabinet is provided with an operation panel for realizing the operation of the whole welding machine.
Description
Technical Field
The application relates to the technical field of plastic door and window welding, in particular to a four-corner welding machine for welding plastic doors and windows and a welding method.
Background
At present, in the welding process of plastic doors and windows, two welding modes exist, one is a seamless welding mode, the other is a seam welding mode, the seamless welding is mainly aimed at the welding of color doors and windows, the seam welding is mainly aimed at the welding of common doors and windows, and a four-corner welding machine is needed in any welding mode.
The utility model provides a plastic door and window foursquare welding machine is the professional equipment that is used for plastic door and window welding process, foursquare welding machine have four aircraft nose that can work simultaneously, can once accomplish the welding process of a rectangle frame, adopt PC or numerical control system to control, convenient operation, work efficiency is high, is fit for mass production, and traditional foursquare welding machine has more technical defect:
1. the flatness of the surface of the profile is in error, weld flash exists at the weld joints of the surface, the inner angle and the outer angle after welding, the appearance is poor, the weld flash on the inner angle is not easy to treat, the weld flash on the outer angle and the surface is required to be cleaned by an angle cleaner, the complexity of the procedure is increased, the equipment investment and the production cost are increased, and the appearance effect of the weld joint is poor.
2. When the profile is assembled on a four-corner welding machine, the size requirement on the profile is high, otherwise, the defects such as profile deformation and the like are easy to occur.
Disclosure of Invention
The application aims to provide a four-corner welding machine for welding plastic doors and windows, which reduces the size requirement on profile materials during welding, avoids the generation of weld flash at the weld joints of the surface, the inner angle and the outer angle of the profile materials, reduces the complexity of working procedures, reduces the production cost, and solves the aesthetic problems of color profile materials, especially the plane, the inner angle and the outer angle of the welded film-coated profile materials, and adopts the following technical scheme:
the four-corner welding machine for welding the plastic doors and windows comprises a machine base, wherein a left machine frame and a right machine frame are arranged on the machine base, the left machine frame is fixed at the left end of the machine base, the right machine frame is driven by a machine frame driving device to slide left and right along the machine base, a left lower machine head is arranged at one end of the left machine frame, a left upper machine head is arranged at the other end of the left machine frame, a right lower machine head is arranged at one end of the right machine frame, a right upper machine head is arranged at the other end of the right machine frame, the left upper machine head and the right upper machine head are driven by the machine frame driving device to slide back and forth along the directions of the left lower machine head and the right lower machine head, and conveying mechanisms for conveying sectional materials are arranged at the inner sides of the left machine frame and the right machine frame; one side of the machine base is also provided with a control cabinet, and an operation panel is arranged on the control cabinet to realize the operation of the whole welding machine.
The upper left hand nose, the lower right hand nose and the upper right hand nose all include the aircraft nose base and set up hold-down mechanism, milling cutter mechanism, heating mechanism, clamp plate mechanism and positioning mechanism on the aircraft nose base, hold-down mechanism includes the clamp that sets up perpendicularly from top to bottom, including two upper clamp and two clamp that push down, two clamp that push down realize synchronous each other 90 separation or move close together through drive mechanism, upper clamp is connected with clamp down through the clamp stand, realizes the synchronous motion with clamp down, have the frock backing plate on two clamp down respectively, the frock backing plate drives through backing plate drive arrangement, realizes the cladding to profile external angle, during the welding, upper clamp and clamp down cooperate to realize the packing to adjacent section bar, positioning mechanism's locating plate is hugged closely to the section bar to the upper left side, upper right hand nose and right frame's joint motion makes the section bar, realizes melting mechanism's position between the feed into the terminal surface of two adjacent section bar and carries out milling cutter, the heating mechanism's the adjacent terminal surface of two adjacent section bars that gets into, the adjacent welding seam is located between two adjacent welding plate, the welding seam is located the adjacent welding seam, the welding seam is located to the adjacent welding position between two adjacent welding cutter.
Further, the transmission mechanism is a screw transmission mechanism which is connected with the pressing pliers and drives the pressing pliers to move, wherein one set of screw transmission mechanism is driven by a motor and is connected with the other set of screw transmission mechanism through bevel gear transmission.
Further, the milling cutter mechanism is fixed on the machine head base through a support frame, a horizontal sliding rail pair is fixed on the support frame, a vertical sliding rail pair is fixed on the horizontal sliding rail pair, a double-headed motor is fixed on the vertical sliding rail pair, a milling cutter is mounted on an output shaft of the double-headed motor, and a first hairbrush is fixed around the milling cutter.
Further, the positioning mechanism comprises a positioning plate and a positioning base elastically connected with the positioning plate, and the positioning plate moves up and down under the driving of a positioning cylinder.
Further, the pressing plate mechanism comprises two pressing plates which are vertically distributed up and down, the pressing plate below is fixed on the positioning mechanism, the pressing plate above is driven to move up and down by utilizing a positioning cylinder of the positioning mechanism, and the pressing plate above is driven to move up and down by utilizing a pressing plate cylinder.
Further, an elastic layer made of elastic materials is fixed on the upper end face of the lower pressing plate and the lower end face of the upper pressing plate, and flatness errors of the section bars at the welding seams are automatically compensated.
Further, the heating mechanism comprises a heating plate, the heating plate is connected with a connecting plate, the connecting plate is hinged with one end of a connecting rod mechanism, the other end of the connecting rod mechanism is connected with an output shaft of a motor, the connecting plate is further connected with a sliding rail of the connecting plate, and the motor drives the connecting plate to reciprocate on the sliding rail so as to drive the heating plate to reciprocate.
Further, the heating plate is covered with a welding skin, and the surface of the welding skin is provided with a zigzag structure.
Further, heating mechanism one end is provided with hot plate cleaning mechanism, including the brush second that is located the hot plate both sides, two brushes second are fixed on the brush seat, and brush seat and brush slide rail connection to it reciprocates through the drive of clearance cylinder.
Further, a pushing mechanism and a jacking mechanism are fixed on the machine head base,
the application also discloses a welding method using the four-corner welding machine, which comprises the following steps:
step 1: and returning the right frame, the left upper machine head and the right upper machine head to the initial positions through the operation panel, and inputting the sizes of the door and window finished frames to be welded.
Step 2: through the operation panel, the following actions are completed simultaneously:
a. the upper and lower pressing pliers move to the initial working position, and the positioning plate rises.
b. The conveying mechanism moves to be close to the frame.
c. The left upper machine head and the right upper machine head move to the required positions along the machine frame, and the right machine frame moves to the required positions along the machine frame.
Step 3: and placing the section bar on the pressing pliers of the machine head.
Step 4: the left upper machine head and the right upper machine head move along the machine frame, and the right machine frame moves along the machine frame, so that the end surfaces of the sectional materials are clung to the positioning plate.
Step 5: the upper pressing pliers move downwards to press the profile.
Step 6: the pressing pliers retract, open and the positioning plate withdraws.
Step 7: the milling cutter is driven by the horizontal sliding rail pair and the vertical sliding rail pair to enter a position between two adjacent sectional materials, the sectional materials are driven by the pressing pliers to move, and meanwhile, the milling cutter is driven by the horizontal sliding rail pair and the vertical sliding rail pair to move, so that milling of the end faces of the sectional materials is completed jointly, the sizes of the sectional materials meet the standard requirements, and meanwhile, a table-shaped structure is machined in the outer contour of the end faces of the sectional materials.
Step 8: after milling, the milling cutter retreats, the heating plate feeds, the milling cutter enters a position between adjacent sections, the pressing pliers close, the two adjacent section end faces clamp the heating plate, and the section end faces are heated and melted.
Step 9: after the heating is finished, the pressing pliers are separated, the heating plate is withdrawn, and after the heating plate is withdrawn, the hairbrush II moves up and down under the action of the cleaning cylinder to clean the surface of the heating plate.
Step 10: the pressing pliers are fed and folded again, so that the end surfaces of adjacent sections are pressed, the sections are in butt joint and fusion, meanwhile, the tool base plate is fed and clings to the outer corners of the sections, and the pressing plate moves to press the welding seam.
Step 11: the upper pressing pliers and the upper pressing plate move upwards, the lower pressing plate moves downwards, the ejection mechanism stretches out, the section bar is ejected away from the lower pressing pliers, the conveying mechanism acts and is away from the frame, the right frame moves rightwards, and the pushing mechanism pushes the section bar away from the machine head.
Step 12: the ejection mechanism retracts, the section bar falls onto the conveying mechanism, and the conveying mechanism conveys the welded section bar out.
The application has the beneficial effects that:
1. the positioning plate is connected with the positioning base through the springs, and when the positioning plate is positioned, if the size of the profile is larger than the standard size, the error value can be automatically compensated through the springs, so that bending deformation is prevented in the positioning process of the profile, and the requirement on the size of the profile is reduced.
2. The application has the milling cutter mechanism, the milling cutter mechanism can be used for processing the section bar into standard size before heating, and the table-shaped structure is processed, so that the outermost side of the section bar is spliced instead of welded, the generation of weld flash on the surface is avoided, the subsequent procedure of clearing the weld flash is reduced, and the weld joint is more attractive.
3. The application has the pressing plate mechanism, and the welding seam is extruded when the profiles are butted, so that the generation of weld flash on the surfaces of the profiles is further prevented.
4. The outer surface of the heating plate is of a wavy line structure, so that the contact area of two adjacent sections is increased, the welding strength is enhanced, and the reduction of the welding strength caused by splicing of the upper outer layer and the lower outer layer of the sections is effectively avoided.
5. The heating plate is driven by the motor and the connecting rod, and different positions of the heating plate can be contacted with the end surface of the section bar by adjusting the rotation angle of the motor, so that the service life of the heating plate is prolonged, and the production cost is reduced.
6. The application has the tooling backing plate, and when in welding, the tooling backing plate clings to the external corner of the section bar, thereby ensuring the beautiful degree requirement of the external corner of the section bar.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a schematic diagram of the overall structure of a foursquare welder of the present application;
FIG. 2 is a schematic view of a left conveying mechanism of the present application;
FIG. 3 is a schematic diagram of the overall structure of the handpiece of the present application;
FIG. 4 is a schematic top view of the overall structure of the handpiece of the present application;
FIG. 5 is a schematic front view of the hold-down mechanism of the present application;
FIG. 6 is a schematic top view of the hold-down mechanism of the present application;
FIG. 7 is a schematic front view of a milling cutter mechanism of the present application;
FIG. 8 is a schematic front view of a positioning mechanism of the present application;
FIG. 9 is a schematic side view of the positioning mechanism of the present application;
FIG. 10 is a schematic top view of the positioning mechanism of the present application;
FIG. 11 is a schematic diagram of the positioning mechanism of the present application;
FIG. 12 is a schematic front view of a heating mechanism of the present application;
FIG. 13 is a schematic top view of a heating plate cleaning mechanism of the present application;
FIG. 14 is a schematic diagram of a welding process of the present application;
wherein: 1. the machine head base, 2, the pressing mechanism, 3, the milling cutter mechanism, 4, the heating mechanism, 5, the pressing mechanism, 6, the positioning mechanism, 7, the section bar, 8, the machine seat, 9, the left machine frame, 10, the right machine frame, 11, the right machine frame screw transmission mechanism, 12, the left lower machine head, 13, the left upper machine head, 14, the right lower machine head, 15, the right upper machine head, 16, the left upper machine head screw transmission mechanism, 17, the right upper machine head screw transmission mechanism, 18, conveyor belt, 19, conveyor belt connecting seat, 20, conveyor linear slide pair, 21, conveyor mechanism bracket, 22, conveyor belt translation cylinder, 201, upper press clamp, 202, lower press clamp, 203, longitudinal moving plate, 204, transverse moving plate, 205, servo motor, 206, bevel gear, 207, fixed slot, 208, press clamp stand, 209, compression cylinder, 210, compression assist cylinder, 211, push plate, 213, linear slide pair, 214, first tooling backing plate, 215, second tooling backing plate, 216, ejector mechanism, 301, support frame, 302, horizontal slide pair, 303, servo motor two, 304, vertical slide pair, 305, servo motor three, 306, milling cutter motor, 307, brush one, 308, milling cutter, 401, servo motor four, 402, linkage mechanism, 403, connecting plate, 404, heating plate, 405, brush two, 406, brush holder, 407, purge cylinder, 408, brush slide, 409, connecting plate slide, 501, upper platen, 502, lower platen, 503, platen cylinder, 601, locating plate, 602, locating base, 603, spring, 604, locating cylinder, 605, guide shaft, 606, guide shaft, 607.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As introduced by the background technology, the existing four-corner welding machine for plastic doors and windows has higher requirements on the size of the section bar, and weld flash exists on the surface of the welded weld, so that the welding flash treatment process is required to be added, the production cost is high, and the application provides a four-corner welding machine head and a welding method for welding the plastic doors and windows.
In an exemplary embodiment of the application, as shown in fig. 1-14, a four-corner welding machine for welding plastic doors and windows comprises a stand 8, wherein a left stand 9 and a right stand 10 are mounted on the stand, the left stand is fixed at the left end of the stand, the right stand is driven by a right stand screw transmission mechanism 11 to slide left and right along the stand, a left lower machine head 12 is mounted at one end of the left stand 9, a left upper machine head 13 is mounted at the other end of the left stand, a right lower machine head 14 is mounted at one end of the right stand 10, a right upper machine head 15 is mounted at the other end of the right stand, the left upper machine head and the right upper machine head slide back and forth along the directions of the left lower machine head and the right lower machine head under the driving of a left upper machine head screw transmission mechanism 16 and a right upper machine head screw transmission mechanism 17, and a left conveying mechanism and a right conveying mechanism for conveying sectional materials are arranged at the inner sides of the left stand and the right stand.
The left conveying mechanism and the right conveying mechanism both comprise conveying belts 18, the conveying belts are connected with conveying mechanism linear slide rail pairs 20 through conveying belt connecting seats 19, bottoms of the conveying mechanism linear slide rail pairs are arranged on conveying mechanism brackets 21, and conveying belt translation cylinders 22 are arranged on one sides of the conveying mechanism linear slide rail pairs and drive the whole left conveying mechanism and the whole right conveying mechanism to move.
The upper left machine head, the upper right machine head, the lower left machine head and the lower right machine head comprise a machine head base 1, a pressing mechanism 2, a milling cutter mechanism 3, a heating mechanism 4, a pressing plate mechanism 5 and a positioning mechanism 6 which are arranged on the machine head base.
The pressing mechanism 2 comprises pressing pliers which are vertically arranged up and down, the pressing pliers comprise two upper pressing pliers 201 and two lower pressing pliers 202, the two lower pressing pliers are respectively fixed on a moving plate, namely a longitudinal moving plate 203 and a transverse moving plate 204 which are distributed at 90 degrees, the transverse moving plate is connected with a first lead screw transmission mechanism, the first lead screw transmission mechanism is driven by a first servo motor 205, the first servo motor rotates to drive the transverse moving plate to move, a lead screw of the first lead screw transmission mechanism is connected with a lead screw of a second lead screw transmission mechanism through bevel gears 206 in a transmission way, the second lead screw transmission mechanism is connected with the longitudinal moving plate 203, only one power source, namely the first servo motor, is required to be arranged, the first servo motor rotates positively or reversely, the longitudinal moving plate and the transverse moving plate can be driven to be separated or close together at 90 degrees, the two lower pressing pliers are folded and separated, the two lower pressing pliers are respectively provided with a first tool backing plate 214 and a second backing plate 215 which are driven by air cylinders, the surfaces of the first tool backing plate and the second backing plate are provided with a shape matched with the outer surface of the profile, and the profile is guaranteed to be positioned in an outer welding groove, and the profile is fixedly inserted and connected with the outer die 207.
The upper pressing pliers are fixedly connected with one end of the pressing pliers upright post 208, the other end of the pressing pliers upright post is fixed on the moving plate, the upper pressing pliers can realize synchronous longitudinal or transverse movement with the lower pressing pliers through the pressing pliers upright post, the upper pressing pliers are fixedly connected with a cylinder connecting rod of the pressing cylinder 209, the pressing cylinder can drive the upper pressing pliers to move up and down, and the upper pressing pliers are further provided with a pressing auxiliary cylinder 210.
The pushing mechanism is fixed on the transverse moving plate and comprises a pushing cylinder 211, a cylinder connecting rod of the pushing cylinder is fixedly connected with a pushing plate 212, and a linear slide rail pair 213 is further connected to the pushing plate to guide the movement direction of the pushing plate.
The milling cutter mechanism 3 is fixed on a machine head base through a support frame 301, a horizontal sliding rail pair 302 is fixed at the top end of the support frame and comprises a screw rod, a moving part and other mechanisms, the horizontal sliding rail pair is driven to move by a second servo motor 303, a vertical sliding rail pair 304 is fixed on the moving part of the horizontal sliding rail pair and comprises a screw rod, a moving part and other mechanisms, the vertical sliding rail pair is driven to move by a third servo motor 305, a milling cutter motor 306 is fixed on the moving part of the vertical sliding rail pair, the milling cutter motor is a double-end motor, a milling cutter 308 is fixed on an output shaft of the double-end motor, a first brush 307 is arranged around the milling cutter and fixed on an end surface shell of the double-end motor for cleaning the end surface of a profile in the milling process. It should be noted that the installation position of the milling cutter mechanism can enable the milling cutter to enter the gap position when the upper pressing pliers and the lower pressing pliers are opened under the combined action of the horizontal sliding rail pair and the vertical sliding rail pair, and the milling cutter can keep vertical to the end face of the profile during milling processing, so that the end face of the profile is processed.
The positioning mechanism 6 is located below the pressing pliers, the positioning mechanism comprises two positioning plates 601 and a positioning base 602 located between the two positioning plates, a spring 603 is connected between the positioning plates and the positioning base, the positioning plates are driven to move up and down through positioning cylinders 604 and are guided through guide shafts 605 on two sides of the positioning cylinders, the guide shafts are sleeved into guide shaft sleeves 606 and are connected with the positioning base, the guide shaft sleeves are fixed on the fixing plates 607, and the fixing plates are fixed on a machine head base.
The pressing plate mechanism 5 comprises an upper pressing plate 501 and a lower pressing plate 502 which are vertically distributed up and down, the lower pressing plate is fixed on the upper surface of the positioning base, the upper pressing plate is driven to move up and down by a positioning cylinder, the upper pressing plate is connected with a pressing plate cylinder 503, and the upper pressing plate is driven to move up and down by the pressing plate cylinder. The lower end face of the upper pressing plate and the upper end face of the lower pressing plate are provided with elastic layers made of elastic materials, and errors of the surface flatness of the section bar can be compensated.
The heating mechanism 4 comprises a servo motor IV 401, a connecting rod mechanism 402, a connecting plate 403, a heating plate 404 and a connecting plate slide rail 409, wherein the connecting rod mechanism comprises two hinged connecting rods, an output shaft of the servo motor IV is hinged with one end of one connecting rod, one end of the other connecting rod is hinged on the connecting plate, the heating plate is fixed on the connecting plate, the connecting plate is slidably connected with the connecting plate slide rail, the four output shafts of the servo motor rotate, the connecting rod mechanism can drive the connecting plate to horizontally move in the slide rail so as to drive the heating plate to move, and the traditional four-pin welder head heating mechanism is driven by an air cylinder.
The heating mechanism is also provided with a heating plate cleaning mechanism in a matching way, the heating plate cleaning mechanism comprises a second brush 405, a brush support 406, a cleaning cylinder 407 and a brush sliding rail 408, the brush is fixed on the brush support, the section of the brush support is of a U-shaped structure, and the brush is fixed on the side wall of the U-shaped structure, so that the second brush can be fixed by adopting one brush support, the second brushes are positioned on two sides of the heating plate, and the brush support is in sliding connection with the brush sliding rail through a connecting structure and is driven to move up and down by the cleaning cylinder to clean two sides of the heating plate.
The heating plate is covered with a welding skin, the welding skin is fixed on the surface of the working part of the heating plate through bolts, and the outer surface of the outer skin part is provided with a zigzag structure.
The machine head base is further provided with a material ejection mechanism, the material ejection mechanism 216 comprises a material ejection cylinder, the material ejection cylinder is fixed on the machine head base through a material ejection cylinder fixing plate, a cylinder is arranged on a cylinder rod of the material ejection cylinder, and a section bar is ejected through the cylinder.
The application also discloses a welding method adopting the four-angle welding machine head, which comprises the following steps:
step 1: the right frame, the upper left machine head and the upper right machine head are returned to the initial working positions through the right frame moving screw pair, the upper left machine head moving screw pair and the upper right machine head moving screw pair through the operation panel, and the sizes of the door and window finished frames of the welding machine are input.
Step 2: through the operation panel, the following actions are completed simultaneously:
a. and operating the first servo motor, moving the moving plate, moving the upper pressing pliers and the lower pressing pliers to the initial working positions, and driving the positioning base and the two positioning plates to ascend by the positioning cylinder.
b. The conveyor belt translation cylinder works to enable the conveyor belts of the left conveying mechanism and the right conveying mechanism to be close to the frame.
c. The left upper machine head and the right upper machine head are driven by the left upper machine head moving screw pair and the right upper machine head moving screw pair to move to a required position respectively, and the right frame is driven by the right frame moving screw pair to move to a required position along the frame.
Step 3: the profile 7 is placed on the press jaw of the head.
Step 4: the left upper machine head and the right upper machine head move along the machine frame, and the right machine frame moves along the machine frame, so that the end surfaces of the sectional materials are clung to the positioning plate.
The adjacent section bars are respectively clung to the two positioning plates to realize the positioning of the section bars, the feeding distance of the upper left machine head, the upper right machine head and the right machine frame is preset by a computer program, and if the section bar length is larger than the standard length, and the positioning plates are rigid positioning plates, the section bars are easy to bend or the pushing plate is not moved in the pushing process, so that the application adopts the form of connecting the positioning base and the positioning plate spring, can automatically compensate the error on the section bar length, and avoids the technical defects.
Step 5: the upper pressing pliers move downwards under the drive of the pressing cylinder, and the upper pressing pliers and the lower pressing pliers press the profile.
Step 6: the servo motor drives the longitudinal moving plate and the transverse moving plate to move relatively, the pressing pliers are opened, and the positioning plate is retracted.
Step 7: the milling cutter of the milling cutter mechanism is driven by the horizontal sliding rail pair and the vertical sliding rail pair to enter the position between two adjacent profiles, the servo motor I drives the upper pressing pliers and the lower pressing pliers to move, meanwhile, the milling cutter is driven by the double-headed motor, and the milling cutter is driven by the horizontal sliding rail pair and the vertical sliding rail pair to move, so that milling of the end faces of the profiles is completed jointly, the sizes of the profiles meet the standard requirements, and a table-shaped structure is machined in the outer outline of the end faces of the profiles.
Step 8: after milling, the milling cutter is retracted, the heating plate is driven by the servo motor IV to enter the position between the adjacent sections, the servo motor I drives the longitudinal moving plate and the transverse moving plate to move, the pressing pliers are closed, the end faces of the adjacent sections are clamped with the heating plate, and the end faces of the sections are heated and melted.
Step 9: after the heating is finished, the longitudinal moving plate and the transverse moving plate move, the pressing pliers are separated, the heating plate is withdrawn, and after the heating plate is withdrawn, the hairbrush II moves up and down under the action of the cleaning cylinder to clean the surface of the heating plate.
Step 10: the movable plate moves, the pressing pliers are fed and folded again, the end faces of adjacent sections are pressed, the sections are in butt joint and fusion, meanwhile, the upper pressing plate moves downwards under the driving of the pressing plate cylinder, the lower pressing plate moves upwards under the driving of the positioning cylinder, and the upper pressing plate and the lower pressing plate press the welding seam.
Because the upper surface plate and the lower surface plate of the section bar have a table-shaped structure, when the upper surface plate and the lower surface plate of the section bar are fused, the section bar in the outer contour surface of the section bar is fused, the outer contour surface of the section bar is spliced, so that the occurrence of weld flash at the welding seam of the outer surface, the inner angle and the outer angle of the section bar is effectively prevented, and because the outer skin of the heating plate is of a zigzag structure, the contact area of the end surface of the section bar is increased during fusion, the welding strength is increased, the reduction of the fusion strength caused by the splicing of the outer contour surface is compensated, the tool pad is clung to the outer angle of the section bar, the attractive requirement of the outer angle is ensured, and the upper pressing plate and the lower pressing plate extrude the welding seam, so that the occurrence of the surface weld flash at the welding seam is further prevented.
Step 11: the upper pressing pliers and the upper pressing plate move upwards, the lower pressing plate moves downwards, the cylinder rod of the material ejection cylinder of the material ejection mechanism extends out, the roller ejects the section bar from the lower pressing pliers, the conveyor belt moves in a translation mode, the conveyor belt is far away from the frame, the right frame moves to the right, the material pushing cylinder of the material pushing mechanism moves, and the section bar is pushed away from the machine head by the pushing plate.
Step 12: the cylinder rod of the ejection cylinder is retracted, the profile falls onto the conveyor belt, and the welded profile is conveyed out by the conveyor belt.
While the foregoing description of the embodiments of the present application has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the application, but rather, it is intended to cover all modifications or variations within the scope of the application as defined by the claims of the present application.
Claims (8)
1. The four-corner welding machine for welding the plastic doors and windows is characterized by comprising a machine base, wherein a machine frame is arranged on the machine base, a machine head is arranged on the machine frame, the machine frame comprises a left machine frame and a right machine frame, the left machine frame is fixed at the left end of the machine base, the right machine frame slides back and forth left and right along the machine base under the drive of a machine frame driving device, a left lower machine head is arranged at one end of the left machine frame, a left upper machine head is arranged at the other end of the left machine frame, a right lower machine head is arranged at one end of the right machine frame, a right upper machine head is arranged at the other end of the right machine frame, the left upper machine head and the right upper machine head slide back and forth along the directions of the left lower machine head and the right lower machine head under the drive of the machine head driving device, and a conveying mechanism for conveying sectional materials is arranged at the inner sides of the left machine frame and the right machine frame; one side of the machine base is also provided with a control cabinet, and an operation panel is arranged on the control cabinet to realize the operation of the whole welding machine;
the upper left machine head, the upper right machine head, the lower left machine head and the lower right machine head comprise a machine head base, a pressing mechanism, a milling cutter mechanism, a heating mechanism, a pressing plate mechanism and a positioning mechanism, wherein the pressing mechanism, the milling cutter mechanism, the heating mechanism, the pressing plate mechanism and the positioning mechanism are arranged on the machine head base;
the pressing plate mechanism comprises two pressing plates which are vertically distributed up and down, the lower pressing plate is fixed on the positioning mechanism, the lower pressing plate is driven to move up and down by the positioning mechanism, the upper pressing plate is driven to move up and down by the pressing plate cylinder, the upper end face of the lower pressing plate and the lower end face of the upper pressing plate are fixed with elastic layers made of elastic materials, and the flatness error of the section bar at the welding seam is automatically compensated.
2. A four-corner welding machine for welding plastic doors and windows as claimed in claim 1, wherein said transmission mechanism is a screw transmission mechanism connected with a pressing clamp and driving the pressing clamp to move, wherein one set of screw transmission mechanism is driven by a motor and connected with the other set of screw transmission mechanism by bevel gear transmission.
3. The four-corner welding machine for welding plastic doors and windows according to claim 1, wherein the milling cutter mechanism is fixed on the machine head base through a support frame, a horizontal sliding rail pair is fixed on the support frame, a vertical sliding rail pair is fixed on the horizontal sliding rail pair, a double-head motor is fixed on the vertical sliding rail pair, a milling cutter is mounted on an output shaft of the double-head motor, and a hairbrush I is fixed around the milling cutter.
4. The four-corner welding machine for welding plastic doors and windows according to claim 1, wherein the positioning mechanism comprises a positioning plate and a positioning base elastically connected with the positioning plate, and the positioning plate moves up and down under the driving of a positioning cylinder.
5. A four-corner welding machine for welding plastic doors and windows as defined in claim 1 wherein said heating means comprises a heating plate connected to a connecting plate which is embedded in a connecting plate slide rail and connected to a linkage mechanism which drives the reciprocating movement of the connecting plate on the connecting plate slide rail and thereby drives the reciprocating movement of the heating plate.
6. A four-corner welding machine for welding plastic doors and windows according to claim 5, wherein the heating plate is covered with a welding skin, and the surface of the welding skin has a zigzag structure.
7. The welding machine for welding plastic doors and windows according to claim 5, wherein the heating mechanism is provided with a heating plate cleaning mechanism at one end, and comprises brushes two at two sides of the heating plate, wherein the brushes two are fixed on brush holders, and the brush holders are connected with brush slide rails and are driven to move up and down by cleaning cylinders.
8. A welding method using the four-corner welder for welding plastic doors and windows according to any one of claims 1 to 7, comprising the steps of:
step 1: returning the right frame, the left upper machine head and the right upper machine head to the initial positions through the operation panel, and inputting the sizes of the door and window finished frames of the welding machine;
step 2: through the operation panel, the following actions are completed simultaneously:
a. the upper pressing pliers and the lower pressing pliers move to an initial working position, and the positioning plate rises;
b. the conveying mechanism moves to be close to the frame;
c. the left upper machine head and the right upper machine head move to the required positions along the machine frame, and the right machine frame moves to the required positions along the machine frame;
step 3: placing a section bar on a pressing clamp of the machine head;
step 4: the left upper machine head and the right upper machine head move along the machine frame, and the right machine frame moves along the machine frame, so that the end surfaces of the sectional materials are tightly attached to the positioning plate;
step 5: the upper pressing pliers move downwards to press the section bar;
step 6: the pressing pliers retract, open and the positioning plate withdraws;
step 7: the milling cutter is driven by the horizontal sliding rail pair and the vertical sliding rail pair to enter a position between two adjacent sectional materials, the sectional materials are driven by the pressing pliers to move, and simultaneously the milling cutter is driven by the horizontal sliding rail pair and the vertical sliding rail pair to move so as to jointly finish milling the end face of the sectional materials, so that the size of the sectional materials meets the standard requirement, and meanwhile, a table-shaped structure is processed in the outer contour of the end face of the sectional materials;
step 8: after milling, the milling cutter retreats, the heating plate feeds, the milling cutter enters a position between adjacent sections, the moving plate moves, the upper pressing clamp and the lower pressing clamp are closed, the end faces of the adjacent sections are clamped on the heating plate, and the end faces of the sections are heated and melted;
step 9: after the heating is finished, the pressing pliers are separated, the heating plate is withdrawn, and after the heating plate is withdrawn, the hairbrush II moves up and down under the action of the cleaning cylinder to clean the surface of the heating plate;
step 10: the pressing pliers are fed and folded again to enable the end surfaces of adjacent sections to be pressed, the sections are in butt joint and fusion, meanwhile, the tool backing plate is fed and clings to the outer corners of the sections, and the pressing plate moves to press the welding seam;
step 11: the upper pressing pliers and the upper pressing plate move upwards, the lower pressing plate moves downwards, the ejection mechanism stretches out to eject the section bar away from the lower pressing pliers, the conveying mechanism acts and moves away from the frame, the right frame moves to the right, and the pushing mechanism pushes the section bar away from the machine head;
step 12: the ejection mechanism retracts, the section bar falls onto the conveying mechanism, and the conveying mechanism conveys the welded section bar out.
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| CN107639843B true CN107639843B (en) | 2023-09-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109955011A (en) * | 2019-03-29 | 2019-07-02 | 山东世通数控设备有限公司 | A kind of double end two-sided seamless welding equipment |
| CN111408875B (en) * | 2020-04-13 | 2021-11-26 | 上海银汀创新不锈钢发展有限公司 | Seamless welding equipment for producing high-grade door leaves |
| CN112959676B (en) * | 2021-02-07 | 2024-03-29 | 西安伦宇门窗幕墙工程有限公司 | Splicing equipment for plastic-steel window frames and technology thereof |
| CN116512619A (en) * | 2023-07-04 | 2023-08-01 | 山东辰禾智能装备有限公司 | Welding device and method for trapezoid frame profile |
| CN116571930A (en) * | 2023-07-13 | 2023-08-11 | 山东辰禾智能装备有限公司 | Special-shaped frame welding device and method |
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