CN107639842B - Four-corner welding machine head for welding plastic doors and windows and welding method - Google Patents
Four-corner welding machine head for welding plastic doors and windows and welding method Download PDFInfo
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- CN107639842B CN107639842B CN201711043673.5A CN201711043673A CN107639842B CN 107639842 B CN107639842 B CN 107639842B CN 201711043673 A CN201711043673 A CN 201711043673A CN 107639842 B CN107639842 B CN 107639842B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to a four-corner welding machine head for welding plastic doors and windows and a welding method, which comprises 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 mechanism comprises an upper pressing clamp and a lower pressing clamp which are vertically arranged up and down, a tool push plate is arranged on the lower pressing clamp, the upper pressing clamp is connected with a pressing cylinder, the upper pressing clamp is matched with the lower pressing clamp to realize the pressing of adjacent sectional materials, the milling cutter mechanism mills the end surfaces of the sectional materials, the end surfaces of heating plate sectional materials of the heating mechanism are heated and melted, and the pressing plate mechanism extrudes welding seams to prevent weld tumors.
Description
Technical Field
The invention relates to the technical field of plastic door and window welding, in particular to a four-corner welding machine head 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 invention aims to provide a four-corner welding machine head 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 welded plane, the welded inner angle and the welded outer angle of a film-covered profile material, and adopts the following technical scheme:
the utility model provides a four corners welding machine aircraft nose for plastics door and window welded, includes aircraft nose base and the hold-down mechanism, milling cutter mechanism, heating mechanism, clamp plate mechanism and positioning mechanism of setting 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 draw close the motion through drive mechanism, upper clamp passes through the clamp stand and is connected with clamp that pushes down, realizes with the synchronous motion of clamp down, have frock backing plate on two clamp that pushes down respectively, the frock backing plate drives through drive arrangement, realizes the cladding to profile external angle, during the welding, upper clamp and clamp that pushes down the cooperation of clamp realize compressing tightly adjacent section bar, positioning mechanism's locating plate feeds into the position between two adjacent section bars, and the joint movement of aircraft nose and four corners welding machine frame makes the section bar hug closely the locating plate, and realize the location to two adjacent section bar between the position melting the end face of two adjacent section bars, the hot plate of heating mechanism feeds into between two adjacent section bars, carries out milling processing to the end face of two adjacent section bars, carries out the welding seam, and the welding seam is located in the position of two adjacent section bars, and extrusion welding seam is located to the position.
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 invention also discloses a welding method using the four-angle welder head, which comprises the following steps:
step one: and (5) moving the upper and lower pressing pliers to an initial working position, and lifting the positioning plate.
Step two: and placing the section bar on the pressing pliers, and moving the machine head and the machine frame of the four-corner welding machine to enable the end face of the section bar to be clung to the positioning plate.
Step three: the upper pressing pliers drop down to press the section bar.
Step four: the pressing pliers are retracted and opened, and the positioning plate is retracted.
Step five: the milling cutter is driven by the horizontal sliding rail pair and the vertical sliding rail pair to enter the position between two adjacent sectional materials, the sectional materials are driven by the pressing pliers to move, meanwhile, the milling cutter is driven by the horizontal sliding rail pair and the vertical sliding rail pair to move, milling of the end faces of the sectional materials is completed jointly, the size of the sectional materials meets the standard requirement, and meanwhile, a table-shaped structure is machined on the outer contour of the end faces of the sectional materials.
Step six: 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 seven: 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 eight: 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 upper pressing plate and the lower pressing plate move to press the welding seam.
Step nine: the upper pressing pliers and the upper pressing plate move upwards, and the lower pressing plate moves downwards.
Step ten: and taking out the section bar to finish welding.
The invention 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 invention 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 outer contour of the section bar is spliced instead of welded, the generation of weld flash at the surface, the inner corner and the outer corner is avoided, the subsequent procedure of clearing the weld flash is reduced, and the weld joint is more beautiful.
3. The invention has the pressing plate mechanism, the welding seam is extruded when the profiles are butted, and the surface of the pressing plate is provided with the elastic material, so that the flatness error of the surface of the profile can be automatically compensated, and the generation of weld flash on the surface of the profile is further prevented.
4. The outer surface of the welding skin is of a zigzag structure, so that the contact area of two adjacent profiles is increased, the welding strength is enhanced, and the reduction of the welding strength caused by splicing of the profile outer contours is effectively avoided.
5. The heating plate is driven by the motor and the connecting rod mechanism, 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 invention 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 application, illustrate embodiments of the application and together with the description serve to explain the application and do not limit the application.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the overall structure of the present invention;
FIG. 3 is a schematic front view of the hold-down mechanism of the present invention;
FIG. 4 is a schematic top view of the hold-down mechanism of the present invention;
FIG. 5 is a schematic front view of the milling cutter mechanism of the present invention;
FIG. 6 is a schematic front view of the positioning mechanism of the present invention;
FIG. 7 is a schematic side view of the positioning mechanism of the present invention;
FIG. 8 is a schematic top view of the positioning mechanism of the present invention;
FIG. 9 is a schematic diagram of the positioning mechanism of the present invention;
FIG. 10 is a schematic front view of a heating mechanism of the present invention;
FIG. 11 is a schematic top view of a heating plate cleaning mechanism of the present invention;
FIG. 12 is a schematic diagram of a welding process of the present invention;
wherein: 1. the tool comprises a base, 2, a hold-down mechanism, 3, a milling cutter mechanism, 4, a heating mechanism, 5, a platen mechanism, 6, a second positioning mechanism, 7, a section bar, 201, an upper press jaw, 202, a lower press jaw, 203, a longitudinal moving plate, 204, a transverse moving plate, 205, a servo motor, 206, a bevel gear, 207, a fixed slot, 208, a press jaw column, 209, a hold-down cylinder, 211, a push cylinder, 212, 213, a linear slide pair, 214, a first tooling backing plate, 215, a second tooling backing plate, 216, a jacking mechanism, 301, a support frame, 302, a horizontal slide pair, 303, a servo motor, 304, a vertical slide pair, 305, a servo motor, 306, a milling cutter, 307, a brush, 308, 401, a servo motor, 402, a linkage, 403, 404, a heating plate, 405, a brush, 406, a brush support, 407, a cleaning cylinder, a slide, 409, a connecting plate, 501, an upper part, 502, a lower pressing plate, 503, a positioning plate, 603, a guide shaft, 602, a guide shaft, and a guide shaft.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present 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 example embodiments in accordance with 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 in order to solve the technical problems, the application provides a four-corner welding machine head for welding plastic doors and windows and a welding method.
In an exemplary embodiment of the present application, as shown in fig. 1-12, a foursquare welder head for welding plastic doors and windows comprises a 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, wherein the pressing mechanism 2, the milling cutter mechanism 3, the heating mechanism 4, the pressing plate mechanism 5 and the positioning mechanism 6 are arranged on the 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 first tool backing plate and the second backing plate 215 are matched with the outer surface of the profile, and the profile is required to be welded and the profile is positioned in an outer groove which is fixedly inserted and connected.
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 four 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 four 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 drives the connecting plate to horizontally move in the slide rail, and then drives the heating plate to move, and the traditional four-foot welding machine 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 invention also discloses a welding method adopting the four-angle welding machine head, which comprises the following steps:
step one: and the servo motor drives the moving plate to move, the two upper pressing pliers and the two lower pressing pliers are moved to the initial working positions, and the positioning base and the two positioning plates are driven to ascend by the positioning cylinder.
Step two: and placing the section bar 7 on a pressing clamp, and enabling the machine head and the frame of the four-corner welding machine to move, wherein adjacent section bars are respectively clung to the two positioning plates. The feeding distance of the machine head and the frame of the four-angle welding machine is preset by a computer program, if the length of the section bar is greater than the standard length, and the positioning plate is a rigid positioning plate, the section bar is easy to bend or the pushing plate is not moved in the pushing process, so that the error on the length of the section bar can be automatically compensated by adopting the mode of connecting the positioning base with the spring of the positioning plate, and the technical defects are avoided.
Step three: the upper pressing pliers are driven by the pressing cylinder to move downwards, and the upper pressing pliers press the profile.
Step four: the servo motor drives the longitudinal moving plate and the transverse moving plate to move relatively, so that the pressing pliers are opened, and the positioning plate is retracted.
Step five: 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 drives the pressing pliers to move, meanwhile, the milling cutter is driven by the double-headed motor to move under the driving of the horizontal sliding rail pair and the vertical sliding rail pair, milling of the end faces of the profiles is completed jointly, the sizes of the profiles meet the standard requirements, and meanwhile, a table-shaped structure is machined in the outer contours of the end faces of the profiles.
Step six: 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 seven: 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 eight: 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 are fused, the first tooling backing plate and the second tooling backing plate are fed and are clung to the adjacent two sections, 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 profile outer profile has a table-shaped structure, when the profile outer profile is fused, the profile inside the surface of the outer profile is fused, the surface of the outer profile is spliced, the occurrence of weld flash at the welding seam of the outer surface, the inner angle and the outer angle of the profile is effectively prevented, because the heating plate outer skin is of a zigzag structure, the contact area of the end surface of the profile is increased during fusion, the welding strength is increased, the reduction of the fusion strength caused by the splicing of the surface of the outer profile is compensated, the tool pad is clung to the outer angle of the profile, the attractive requirement of the outer angle is ensured, and the upper pressing plate and the lower pressing plate squeeze the welding seam, so that the occurrence of the surface weld flash at the welding seam is further prevented.
Step nine: the upper pressing pliers and the upper pressing plate move upwards, and the lower pressing plate moves downwards.
Step ten: and taking out the section bar to finish welding.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (10)
1. The utility model provides a four corners welding machine aircraft nose for plastics door and window welded, its characterized in that, including aircraft nose base and setting and the hold-down mechanism on the aircraft nose base, milling cutter mechanism, heating mechanism, clamp plate mechanism and positioning mechanism, 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 passes through the clamp stand and is connected with clamp that pushes down, realizes with the synchronous motion of clamp down, have frock backing plate on the clamp that pushes down respectively, the frock backing plate drives through drive arrangement, realizes the cladding to the profile external angle, and during the welding, upper clamp and clamp that pushes down cooperate to realize compressing tightly to adjacent section bar, positioning mechanism's locating plate feeds into the position between the two adjacent section bars, and the joint movement of aircraft nose and four corners welding machine frame makes the section bar hug closely the locating plate, and milling cutter's feed into the position between two adjacent section bars and realize milling to the terminal surface of two adjacent section bars, and heating mechanism gets into between two adjacent section bars and carries out milling process, and weld joint weld, and weld, weld joint between adjacent two adjacent welding place, and the welding seam is located on the adjacent position.
2. A foursquare welder head for welding plastic doors and windows as claimed in claim 1, wherein the transmission mechanism is a screw transmission mechanism connected with two pressing pliers and driving the two 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 by bevel gear transmission.
3. The four-corner welding machine head for welding plastic doors and windows according to claim 1, wherein the milling cutter mechanism is fixed on a 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 welding machine head 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. The welding machine head for welding plastic doors and windows according to claim 1, wherein the pressing plate mechanism comprises two pressing plates 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, and the upper pressing plate is driven to move up and down by the pressing plate cylinder.
6. The welding machine head for welding plastic doors and windows according to claim 5, wherein 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 flatness errors of the section bars at the welding joints are automatically compensated.
7. A foursquare welder head for welding plastic doors and windows as recited in claim 1, wherein said heating mechanism comprises a heating plate, said heating plate is connected with a connecting plate, said connecting plate is embedded in a connecting plate slide rail and is connected with a link mechanism, and the link mechanism drives the connecting plate to reciprocate on the connecting plate slide rail, thereby driving the heating plate to reciprocate.
8. A foursquare welder head for welding plastic doors and windows according to claim 7, wherein the heating plate is covered with a welding skin, and the surface of the welding skin has a zigzag structure.
9. The welding machine head for welding plastic doors and windows according to claim 7, wherein one end of the heating mechanism is provided with a heating plate cleaning mechanism, the heating mechanism comprises two brushes positioned on two sides of the heating plate, the two brushes are fixed on a brush seat, and the brush seat is connected with a brush sliding rail and is driven to move up and down by a cleaning cylinder.
10. Welding method using a four-pin welder head for welding plastic doors and windows according to any of the claims 1-9, characterized by the following steps:
step one: moving the upper pressing pliers and the lower pressing pliers to an initial working position, and lifting the positioning plate;
step two: placing a section bar on the pressing pliers, and moving the machine head and the machine frame of the four-angle welding machine to enable the end face of the section bar to be clung to the positioning plate;
step three: the upper pressing pliers drop down to press the section bar;
step four: the pressing pliers retract and open, and the positioning plate withdraws;
step five: the milling cutter is driven by the horizontal sliding rail pair and the vertical sliding rail pair to enter the position between two adjacent sectional materials, the sectional materials are driven by the pressing pliers to move, meanwhile, the milling cutter is driven by the horizontal sliding rail pair and the vertical sliding rail pair to move, milling of the end faces of the sectional materials is completed jointly, the size of the sectional materials meets the standard requirement, and meanwhile, a table-shaped structure is machined on the outer contour of the end faces of the sectional materials.
Step six: after milling, the milling cutter retreats, the heating plate feeds, the milling cutter enters a position between adjacent sections, the pressing pliers close, the end faces of the two adjacent sections are clamped with the heating plate, and the end faces of the sections are heated and melted;
step seven: after the heating is finished, the pressing pliers are separated, the heating plate is withdrawn, and after the heating plate is withdrawn, the hairbrush moves up and down under the action of the air cylinder to clean the surface of the heating plate;
step eight: the pressing pliers are fed and folded again to enable the end surfaces of adjacent sections to be pressed tightly, 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 seams of the sections;
step nine: the upper pressing pliers and the upper pressing plate move upwards, and the lower pressing plate moves downwards;
step ten: and taking out the section bar to finish welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711043673.5A CN107639842B (en) | 2017-10-31 | 2017-10-31 | Four-corner welding machine head for welding plastic doors and windows and welding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711043673.5A CN107639842B (en) | 2017-10-31 | 2017-10-31 | Four-corner welding machine head for welding plastic doors and windows and welding method |
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| Publication Number | Publication Date |
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| CN107639842A CN107639842A (en) | 2018-01-30 |
| CN107639842B true CN107639842B (en) | 2023-07-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TR201807412A2 (en) * | 2018-05-24 | 2018-06-21 | Kaban Makina Sanayi Ve Ticaret Ltd Sirketi | A WELDING MACHINE WITH CLEANING UNIT |
| CN112428497B (en) * | 2020-10-29 | 2024-06-14 | 济南伦渠数控机电有限公司 | Angle cleaning mode and structure for synchronously cleaning angle joints at four corners of plastic doors and windows |
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