CN213318510U

CN213318510U - Welding head and multi-angle welding machine

Info

Publication number: CN213318510U
Application number: CN202022217692.9U
Authority: CN
Inventors: 尚士访
Original assignee: Jinan United Machinery Co ltd
Current assignee: Jinan United Machinery Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-01
Anticipated expiration: 2030-09-30

Abstract

The utility model relates to a welding head and multiangular welding machine, which comprises a base, be equipped with one-level feed mechanism on the base, be connected with down to feed welding mechanism and enterprising and give welding mechanism on the one-level feed mechanism respectively, enterprising be connected with elevating system on giving welding mechanism, be equipped with positioning mechanism on feeding welding mechanism down, still be equipped with heating mechanism on the base, one-level feed mechanism is equipped with the feeding slider including setting up the feeding guide rail on the base on the feeding guide rail, is equipped with on the feeding slider and feeds the slide, is equipped with the drive rack on feeding the slide, is equipped with on the base and feeds servo motor, feeds servo motor and is connected with the drive gear with drive rack toothing, feeds the slide front end and is equipped with the stand, and the stand lower extreme feeds welding mechanism with down and is. The welding device has the advantages of reasonable structural design, high operation precision, good synchronism, high welding quality and the like.

Description

Welding head and multi-angle welding machine

The technical field is as follows:

the utility model relates to a mould steel door and window welding equipment technical field, concretely relates to welding head and welding machine are used in the welding of mould steel door and window.

Background art:

the welding machine is a main device for realizing mechanical welding of the plastic-steel doors and windows, and is commonly used at present, the four-corner welding machine comprises four welding heads for realizing the four-corner welding of the plastic-steel doors and windows and a hexagonal welding machine comprises six welding heads, wherein the two welding heads in the middle are used for welding the centering stiles. The welding head is the core part of polygonal welding machine, mainly realizes the location of plastic-steel door and window section bar, presss from both sides tightly, heats and feeds the welding, and present welding head adopts cylinder drive to realize that each action requires mostly, adopts the guide shaft to lead, and present welding machine is though can realize various actions, and the running accuracy and synchronism are relatively poor, and the concrete expression is: firstly, the synchronism of the feeding motion is poor, so that the welding quality of the welding positions of four corners of the plastic-steel door and window is different, and the fundamental reason is that when a plurality of welding heads are arranged on a welding machine, the air pressure of the feeding cylinders on the welding heads is difficult to ensure to be equal, so that the synchronism of the motion of the feeding cylinders is poor; secondly, a gap of 4-6 wires exists between the guide shaft and the shaft sleeve, and the gap between the guide shaft and the shaft sleeve is further increased due to abrasion after the guide shaft and the shaft sleeve are used, and generally can reach about 20 wires, so that the operation precision of each movement of the welding head is seriously influenced, and the welding quality is reduced. Therefore, there is a need for an improved welding head with significantly improved operating accuracy and good synchronization.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

The utility model has the following contents:

an object of the utility model is to solve the problem that prior art exists, provide welding head and multiangular welding machine, have that structural design is reasonable, the running accuracy is high, the synchronism is good, advantages such as welding quality height.

The utility model discloses an adopt following technical scheme to realize above-mentioned purpose:

a welding head, comprising:

the welding device comprises a base, wherein a primary feeding mechanism is arranged on the base, a lower feeding welding mechanism and an upper feeding welding mechanism which are matched with each other are respectively connected to the primary feeding mechanism, a lifting mechanism is connected to the upper feeding welding mechanism, a positioning mechanism is arranged on the lower feeding welding mechanism, and a heating mechanism is also arranged on the base;

one-level feed mechanism, including setting up the feeding guide rail on the base, be equipped with the feeding slider on the feeding guide rail, be equipped with the feeding slide on the feeding slider, be equipped with the drive rack on the feeding slide, be equipped with on the base and feed servo motor, it is connected with the drive gear with drive rack toothing to feed servo motor, it is equipped with the stand to feed the slide front end, the stand lower extreme with it connects to feed welding mechanism down, be equipped with vertical guide rail on the stand, the stand pass through vertical guide rail with it connects to go up to feed welding mechanism.

The lower feeding welding mechanism comprises a lower fixing plate and two guide rail supporting seats arranged at intervals, a lower guide rail is arranged on each guide rail supporting seat, a lower sliding block is arranged on each lower guide rail, a lower moving plate is arranged on each lower sliding block, a lower pressing clamp A is arranged on each lower fixing plate, a lower pressing clamp B and an upright post are arranged on each lower moving plate, a lower driving cylinder is arranged between each lower moving plate and the corresponding base, the inner side end portions of the lower fixing plate and the lower pressing clamp A are designed to be right-angle-shaped protrusions A, and the inner side end portions of the lower moving plate and the lower pressing clamp B are designed to be right-angle-shaped grooves A matched with the right-.

The upper feeding welding mechanism comprises an upper supporting plate, a lifting mechanism is connected above the upper supporting plate, an upper fixed plate and two upper guide rails which are arranged at intervals are arranged below the upper supporting plate, an upper slide block is arranged on the upper guide rails, an upper moving plate is arranged on the upper slide block, an upper press clamp A is arranged on the upper fixed plate, an upper press clamp B is arranged on the upper moving plate, a vertical connecting plate is arranged at the rear end of the upper moving plate, the vertical guide rails comprise a vertical guide rail A arranged in front of the upright post and a vertical guide rail B arranged behind the upright post, a lifting slide block A is arranged on the vertical guide rail A, the lifting slide block A is arranged on the vertical connecting plate, a lifting slide block B is arranged on the vertical guide rail B, a cylinder mounting seat is arranged on the lifting slide block B, an upper driving cylinder is arranged on the cylinder mounting, the inner side ends of the upper fixed plate and the upper pressing pliers A are designed into right-angle protrusions B, and the inner side ends of the upper movable plate and the upper pressing pliers B are designed into right-angle grooves B matched with the right-angle protrusions B.

Elevating system drives actuating cylinder A, goes up and down and drives actuating cylinder B and goes up and down and drive actuating cylinder C including the lift that is triangle-shaped setting, go up and down to drive actuating cylinder B and go up and down to drive actuating cylinder C direct with it connects to go up the backup pad, go up and down to drive actuating cylinder A through guiding mechanism with it connects to go up the backup pad, guiding mechanism includes vertical setting and is in go up the deflector on the backup pad, the vertical guide rail that is equipped with on the deflector, guide rail through the direction slider with pedestal connection, go up and down to drive actuating cylinder A with the deflector is connected.

The positioning mechanism comprises a side positioning plate, a rear positioning plate and a lower positioning plate which are matched with each other, the side positioning plate is arranged on the lower pressing clamp A, the rear positioning plate is arranged on the lower pressing clamp B, a guide seat is arranged below the base, a positioning guide rail is arranged on the guide seat, a positioning guide slider is arranged on the positioning guide rail, a positioning guide sliding plate is arranged on the positioning guide slider, the lower positioning plate is arranged on the positioning guide sliding plate, a lower positioning driving cylinder is arranged at the lower end of the guide seat, the lower positioning driving cylinder is connected with the positioning guide sliding plate, and a through hole A for the lower positioning plate to pass through is formed in the base.

The heating mechanism comprises a transverse moving seat, a transverse moving guide rail is arranged on the transverse moving seat, a transverse moving sliding block is fixedly arranged on the base, the transverse moving guide rail is arranged on the transverse moving sliding block, screws and nuts are arranged between two sides of the transverse moving seat and between the base, a reset spring is arranged on each screw, a heating driving cylinder is vertically arranged on the transverse moving seat, a heating guide plate is arranged on the transverse moving seat, a heating guide rail is arranged on the heating guide plate, a heating guide sliding block is arranged on the heating guide rail, a heating guide sliding plate is arranged on the heating guide sliding block, the heating guide sliding plate is connected with the heating driving cylinder, a heating plate is arranged on the heating guide sliding plate, and a through hole B for the heating plate to pass through is.

The base is formed by the concatenation of polylith panel, including bottom plate, curb plate, front bezel and roof, bottom plate and roof both sides are equipped with the curb plate respectively, be equipped with pushing equipment on the curb plate, pushing equipment is including pushing away the material support, it pushes away the material guide pillar to be equipped with on the material support to push away, it is equipped with the push pedal to push away the material guide pillar front end, the push pedal with it pushes away and drives actuating cylinder to be equipped with between the material support to push away.

The multi-angle welding machine comprises a machine frame, wherein a plurality of welding heads are arranged on the machine frame.

The frame comprises a cross beam, one end of the cross beam is provided with a fixed machine head mounting frame, the cross beam is provided with a transverse guide rail, a transverse moving machine head mounting frame is arranged on the transverse guide rail, a transverse moving driving mechanism is arranged between the transverse moving machine head mounting frame and the rack, the fixed machine head mounting rack and the transverse moving machine head mounting rack are respectively provided with a longitudinal guide rail, one end of the longitudinal guide rail is fixedly provided with the welding machine head for welding the plastic-steel door and window, one or two welding heads for welding the plastic-steel doors and windows are movably arranged on the longitudinal guide rail, a longitudinal driving servo motor is arranged on the movably arranged welding head for welding the plastic-steel doors and windows, the longitudinal driving servo motor is connected with a driving gear which is meshed with a driving rack arranged on the fixed machine head mounting rack or the transverse moving machine head mounting rack, and the fixed machine head mounting frame and the transverse moving machine head mounting frame are respectively provided with a feeding mechanism which is matched with each other.

The transverse moving driving mechanism comprises synchronous belt wheels arranged on the rack at intervals, a synchronous belt is arranged between the two synchronous belt wheels and connected with the transverse moving machine head mounting frame, and one synchronous belt wheel is connected with a transverse moving driving servo motor.

The feeding mechanism comprises two feeding lifting cylinders arranged at intervals, supporting rods are arranged on the feeding lifting cylinders, conveying belt wheels are arranged at two ends of each supporting rod respectively, a conveying belt is arranged between the conveying belt wheels, and one conveying belt wheel is connected with a feeding servo motor.

The utility model adopts the above structure, following beneficial effect can be brought:

(1) the primary feeding mechanism is designed, the primary feeding mechanism realizes feeding movement in a servo motor driving mode, the synchronous feeding mechanism has the advantage of good synchronism, and meanwhile, sufficient extrusion force is provided in a lower driving air cylinder and an upper driving air cylinder driving mode, namely, the feeding movement is realized by the servo motor with good synchronism, and the extrusion force required by welding is realized by the air cylinder driving, so that the welding quality is ensured; (2) each movement in the welding head is accurately and reliably guided in a guide rail sliding block mode, so that the operation precision is improved, and the welding quality is further improved. (3) Through the design of the heating mechanism, especially the reset spring in the heating mechanism, after the heating of the heating plate is completed, the heating plate can be separated from the plastic-steel door and window profile under the action of the reset spring, and then the lifting is convenient.

Description of the drawings:

fig. 1 is a schematic perspective view of a welding head of the present invention;

FIG. 2 is a schematic structural view of the welding head of the present invention without a side plate;

FIG. 3 is a schematic view of another view angle of the welding head of the present invention without a side plate;

fig. 4 is a schematic structural view of the primary feeding mechanism of the present invention;

fig. 5 is another view structure diagram of the primary feeding mechanism of the present invention;

fig. 6 is a schematic structural view of the lower feed welding mechanism of the present invention;

FIG. 7 is a schematic view of the top view of the lower feed welding mechanism with the positioning mechanism of the present invention;

fig. 8 is a partial structural schematic view of an upper feed welding structure according to the present invention;

fig. 9 is a schematic view of the mounting structure of the lower positioning plate of the present invention;

fig. 10 is a schematic structural view of the heating mechanism of the present invention;

fig. 11 is a schematic structural view of the base of the present invention;

fig. 12 is a schematic structural view of the pushing mechanism of the present invention;

FIG. 13 is a schematic top view of the multi-angle welding machine of the present invention;

FIG. 14 is a schematic structural view of the welding head with a longitudinal servo motor according to the present invention;

fig. 15 is a schematic structural view of the feeding mechanism of the present invention;

in the figure, 1, a base, 101, a bottom plate, 102, side plates, 103, a front plate, 104, a top plate, 105, a through hole A, 2, a primary feeding mechanism, 201, a feeding guide rail, 202, a feeding slide block, 203, a feeding sliding plate, 204, a driving rack, 205, a feeding servo motor, 206, a driving gear, 207, a column, 208, a vertical guide rail A, 209, a vertical guide rail B, 3, a lower feeding welding mechanism, 301, a lower fixing plate, 302, a guide rail supporting seat, 303, a lower guide rail, 304, a lower slide block, 305, a lower moving plate, 306, a lower pressing clamp A, 307, a lower pressing clamp B, 308, a lower driving cylinder, 309, a right-angle protrusion A, 310, a right-angle groove A, 4, an upper feeding welding mechanism, 401, an upper supporting plate, 402, an upper fixing plate, 403, an upper guide rail, 404, an upper slide block, 405, an upper moving plate, 406, an upper pressing clamp A, 407, an upper pressing clamp, 409. lifting slide blocks A, 410, lifting slide blocks B, 411, cylinder mounting seats, 412, upper driving cylinders, 413, through holes B, 414, right-angle-shaped bulges B, 415, right-angle-shaped grooves B, 5, lifting mechanisms, 501, lifting driving cylinders A, 502, lifting driving cylinders B, 503, lifting driving cylinders C, 504, guide plates, 505, guide rails, 506, guide slides, 6, positioning mechanisms, 601, side positioning plates, 602, rear positioning plates, 603, lower positioning plates, 604, guide seats, 605, positioning guide rails, 606, positioning guide slides, 607, positioning guide sliding plates, 608, lower positioning driving cylinders, 7, heating mechanisms, 701, traversing seats, 702, traversing guide rails, 703, traversing slide blocks, 704, screws, 705, nuts, 706, reset springs, 707, heating driving cylinders, 708, heating guide plates, 709, heating guide rails, 710, heating guide slides, 711. the welding machine comprises a heating guide sliding plate, 712, a heating plate, 8, a material pushing mechanism, 801, a material pushing mechanism, 802, a material pushing guide post, 803, a push plate, 804, a material pushing driving air cylinder, 9, a rack, 901, a cross beam, 902, a fixed machine head mounting frame, 903, a transverse guide rail, 904, a transverse machine head mounting frame, 905, a longitudinal guide rail, 906, a driving rack, 907, a driving gear, 908, a longitudinal driving servo motor, 10, a transverse driving mechanism, 1001, a synchronous pulley, 1002, a synchronous belt, 1003, a transverse driving servo motor, 11, a feeding mechanism, 1101, a feeding lifting air cylinder, 1102, a supporting rod, 1103, a conveying pulley, 1104, a conveying belt, 1105, a feeding servo motor, 12 and a welding machine head for welding plastic-.

The specific implementation mode is as follows:

in order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

Furthermore, the terms "a", "B", "C", "inner", "end", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the location of the indicated technical feature.

In the present invention, unless otherwise expressly stated or limited, the terms "provided", "disposed", "connected", and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-15, a welding head, comprising:

the welding device comprises a base 1, wherein a primary feeding mechanism 2 is arranged on the base 1, a lower feeding welding mechanism 3 and an upper feeding welding mechanism 4 which are matched with each other to work are respectively connected to the primary feeding mechanism 2, a lifting mechanism 5 is connected to the upper feeding welding mechanism 4, a positioning mechanism 6 is arranged on the lower feeding welding mechanism 3, and a heating mechanism 7 is also arranged on the base 1;

one-level feed mechanism 2, including setting up the feeding guide rail 201 on base 1, be equipped with on the feeding guide rail 201 and feed slider 202, it is equipped with on the slider 202 and feeds slide 203 to feed, it is equipped with drive rack 204 on the slide 203 to feed, be equipped with on the base 1 and feed servo motor 205, it is connected with drive gear 206 with drive rack 204 meshing to feed servo motor 205, it is equipped with stand 207 to feed slide 203 front end, stand 207 lower extreme with it connects to feed welding mechanism 3 down, be equipped with vertical guide rail on the stand 207, stand 207 through vertical guide rail with it connects to go up to feed welding mechanism 4. The feeding action is realized by adopting the driving mode of the feeding servo motor 205, the driving gear 206 and the driving rack 204, the original air cylinder is replaced to drive the feeding motion, the advantage of good synchronism is achieved, but the welding process needs larger extrusion force, and the servo motor drive cannot be adopted, so that the air cylinder drive is used for providing enough extrusion force after the feeding motion is completed, the servo motor drive and the air cylinder drive are combined together by the application, and the welding quality is improved.

The lower feeding welding mechanism 3 comprises a lower fixing plate 301 and two guide rail supporting seats 302 arranged at intervals, a lower guide rail 303 is arranged on each guide rail supporting seat 302, a lower sliding block 304 is arranged on each lower guide rail 303, a lower moving plate 305 is arranged on each lower sliding block 304, a lower pressing clamp A306 is arranged on each lower fixing plate 301, a lower pressing clamp B307 and a vertical column 207 are arranged on each lower moving plate 305, a lower driving cylinder 308 is arranged between each lower moving plate 305 and the base 1, the inner side end portions of the lower fixing plate 301 and the lower pressing clamp A306 are designed to be right-angled protrusions A309, and the inner side end portions of the lower moving plates 305 and the lower pressing clamps B307 are designed to be right-angled grooves A310 matched with the right-angled protrusions A309. The moving mode that lower movable plate 301 adopted lower guide rail 303 of this application has the advantage that the direction precision is high, can further improve overall structure intensity and operation precision with bottom plate 301 and guide rail supporting seat 302 and base 1 integrated into one piece design simultaneously.

The upper feeding welding mechanism 4 comprises an upper support plate 401, a lifting mechanism 5 is connected above the upper support plate 401, an upper fixed plate 402 and two upper guide rails 403 which are arranged at intervals are arranged below the upper support plate 401, an upper slide block 404 is arranged on the upper guide rails 403, an upper moving plate 405 is arranged on the upper slide block 404, an upper press clamp A406 is arranged on the upper fixed plate 402, an upper press clamp B407 is arranged on the upper moving plate 405, a vertical connecting plate 408 is arranged at the rear end of the upper moving plate 405, the vertical guide rails comprise a vertical guide rail A208 arranged in front of the upright column 207 and a vertical guide rail B209 arranged behind the upright column 207, a lifting slide block A409 is arranged on the vertical guide rail A208, the lifting slide block A409 is arranged on the vertical connecting plate 408, a lifting slide block B410 is arranged on the vertical guide rail B209, a cylinder mounting seat 411 is arranged on the lifting slide block B410, and an, the upper driving cylinder 412 is connected with the upper support plate 401, the inner ends of the upper fixing plate 402 and the upper press jaw A406 are designed into right-angled protrusions B414, and the inner ends of the upper moving plate 405 and the upper press jaw B407 are designed into right-angled grooves B415 matched with the right-angled protrusions B414. The lifting of the upper feeding welding mechanism 4 adopts the vertical guide rail to conduct accurate guiding, the upper moving plate 405 moving together with the lower moving plate 305 adopts the upper guide rail 403 to conduct accurate guiding, and the guiding precision of the whole structure design is high.

Elevating system 5 drives actuating cylinder A501, goes up and down to drive actuating cylinder B502 and goes up and down to drive actuating cylinder C503 including the lift that is triangle-shaped setting, go up and down to drive actuating cylinder B502 and go up and down to drive actuating cylinder C503 direct with it connects to go up backup pad 401, go up and down to drive actuating cylinder A501 through guiding mechanism with it connects to go up backup pad 401, guiding mechanism includes vertical setting and is in go up the deflector 504 on the backup pad 401, the vertical guide rail 505 that is equipped with on the deflector 504, guide rail 505 through guide slider 506 with base 1 connects, go up and down to drive actuating cylinder A501 with the deflector 504 is connected. Three lifting driving cylinders are adopted for lifting, the supporting is firm and stable, and meanwhile, the front lifting driving cylinder A is designed to be a guide mechanism, so that the running precision of the lifting mechanism is ensured.

The positioning mechanism 6 comprises a side positioning plate 601, a rear positioning plate 602 and a lower positioning plate 603 which are matched with each other, the side positioning plate 601 is arranged on the lower press jaw A306, the rear positioning plate 602 is arranged on the lower press jaw B307, a guide seat 604 is arranged below the base 1, a positioning guide rail 605 is arranged on the guide seat 604, a positioning guide sliding block 606 is arranged on the positioning guide rail 605, a positioning guide sliding plate 607 is arranged on the positioning guide sliding block 606, the lower positioning plate 603 is arranged on the positioning guide sliding plate 607, a lower positioning driving cylinder 608 is arranged at the lower end of the guide seat 604, the lower positioning driving cylinder 608 is connected with the positioning guide sliding plate 606, and a through hole A105 through which the lower positioning plate 603 passes is arranged on the base 1. Side locating plate 601, back locating plate 602 and lower locating plate 603 belong to prior art, all have on the welding machine at present, and this application modified focus has designed location guiding mechanism to the motion of lower locating plate, and then improves the positioning accuracy of lower locating plate, improves welding quality.

The heating mechanism 7 comprises a traverse seat 701, a traverse guide rail 702 is arranged on the traverse seat 701, a transverse sliding block 703 is fixedly arranged on the base 1, the transverse sliding guide rail 702 is arranged on the transverse sliding block 703, a screw 704 and a nut 705 are arranged between the two sides of the traversing seat 701 and the base 1, a return spring 706 is arranged on the screw 704, a heating driving cylinder 707 is vertically arranged on the traverse moving seat 701, a heating guide plate 708 is arranged on the traversing seat 701, a heating guide rail 709 is arranged on the heating guide plate 708, a heating guide sliding block 710 is arranged on the heating guide rail 709, a heating guide sliding plate 711 is arranged on the heating guide sliding block 710, the heating guide sliding plate 711 is connected with the heating driving cylinder 707, a heating plate 712 is arranged on the heating guide sliding plate 711, and the upper support plate 401 is provided with a through hole B413 for the heating plate 712 to pass through. Heating plate 712 is the necessary part of welding machine, belong to prior art, traditional heating plate 712 direct mount drives actuating cylinder and goes up and down, nevertheless there is the lift operation precision low, heating plate 712 heating back is difficult for breaking away from the problem of section bar, and this application has designed sideslip canceling release mechanical system, under the prerequisite of guaranteeing the sideslip precision, utilize reset spring 706 to make heating plate 712 break away from the section bar, vertical lift increases the direction simultaneously, ensures the accurate direction of vertical direction, and then is favorable to improving welding quality.

The base 1 is formed by splicing a plurality of plates and comprises a bottom plate 101, side plates 102, a front plate 103 and a top plate 104, wherein the side plates 102 are arranged on two sides of the bottom plate 101 and the top plate 104 respectively, a material pushing mechanism 8 is arranged on each side plate 102, each material pushing mechanism 8 comprises a material pushing support 801, a material pushing guide pillar 802 is arranged on each material pushing support 801, a push plate 803 is arranged at the front end of each material pushing guide pillar 802, and a material pushing driving cylinder 804 is arranged between each push plate 803 and each material pushing support 801. Base 1 is formed by the concatenation of polylith panel, is convenient for install each part, can be favorable to simultaneously with bottom plate 101 integrated into one piece design with bottom plate 301 and guide rail supporting seat 302.

The multi-angle welding machine comprises a machine frame 9, wherein a plurality of welding heads 12 are arranged on the machine frame 9. Four or six welding heads 12 are typically provided to form a four corner or hexagonal welding machine.

The rack 9 comprises a cross beam 901, one end of the cross beam 901 is provided with a fixed machine head mounting rack 902, the cross beam 901 is provided with a transverse guide rail 903, the transverse guide rail 903 is provided with a transverse machine head mounting rack 904, a transverse driving mechanism 10 is arranged between the transverse machine head mounting rack 904 and the rack 9, the fixed machine head mounting rack 902 and the transverse machine head mounting rack 904 are respectively provided with a longitudinal guide rail 905, one end of the longitudinal guide rail 905 is fixedly provided with a welding machine head for welding plastic-steel doors and windows, one or two welding machine heads for welding plastic-steel doors and windows are movably arranged on the longitudinal guide rail 905, a longitudinal driving servo motor 908 is arranged on the movably arranged welding machine head for welding plastic-steel doors and windows, the longitudinal driving servo motor 908 is connected with a driving gear 907, and the driving gear 907 is meshed with a driving rack 906 arranged on the fixed machine head mounting rack, the fixed machine head mounting frame 902 and the transverse moving machine head mounting frame 904 are respectively provided with a feeding mechanism 11 which are matched with each other. The transverse movement and the longitudinal movement of the welding machine head for welding the plastic-steel doors and windows and the feeding and the discharging of the plastic-steel door and window profiles are realized, and then the four-corner welding or the hexagonal welding of different profiles can be completed.

The traverse driving mechanism 10 comprises synchronous pulleys 1001 arranged on the frame 9 at intervals, a synchronous belt 1002 is arranged between the two synchronous pulleys 1001, the synchronous belt 1002 is connected with the traverse handpiece mounting rack 904, and one synchronous pulley 1001 is connected with a traverse driving servo motor 1003. The transverse movement is realized by adopting a driving mode of a synchronous belt.

The feeding mechanism 11 comprises two feeding lifting cylinders 1101 arranged at intervals, a supporting rod 1102 is arranged on each feeding lifting cylinder 1101, two ends of each supporting rod 1102 are respectively provided with a conveying belt wheel 1103, a conveying belt 1104 is arranged between the two conveying belt wheels 1103, and one of the conveying belt wheels 1103 is connected with a feeding servo motor 1105. The welded plastic-steel doors and windows can be automatically unloaded.

The utility model discloses the working process of welding machine:

the description will be given by taking a four-corner welding machine as an example.

When the device is used, the positions of four welding heads 12 are adjusted according to the size of a plastic-steel door window, then the lower positioning plate 603 is lifted, the first-stage feeding mechanism 2 drives the lower moving plate 305 and the upper moving plate 405 to move in a feeding mode, the lower pressing clamp B307 and the upper pressing clamp B407 as well as the lower pressing clamp A306 and the upper pressing clamp A406 clamp the lower positioning plate 603, then the profiles are spliced into a rectangle by the positioning mechanism 6, then the lifting mechanism 5 drives the upper feeding welding mechanism 4 to move downwards to press the profiles, the pressing subsequent-stage feeding mechanism 2 retreats (the upper pressing clamp B407 and the lower pressing clamp B307 clamp the profiles on the upper feeding mechanism together, the upper pressing clamp A406 and the lower pressing clamp A306 press the other profiles without moving), the lower positioning plate 603 descends, 712 descends under the action of the heating driving cylinder 707, falls between the two profiles, then the first-stage feeding mechanism 2 drives the lower moving plate 305 and the upper moving plate 405 to feed again to enable the two profiles, the heating plate 712 is electrified to start working to melt the section bar at high temperature, after heating is completed, the first-stage feeding mechanism 2 returns, the heating plate 712 rises, the first-stage feeding mechanism 2 drives the lower moving plate 305 and the upper moving plate 405 to rapidly feed, after the feeding movement is completed, the upper driving air cylinder 412 and the lower driving air cylinder 308 act to improve enough pressure to extrude the two section bars together for welding, and the two section bars are kept for a period of time, so that the four-corner welding of the plastic-steel door and window is completed; after welding is completed, the feeding lifting cylinder 1101 moves to lift the plastic-steel door and window (higher than the side positioning plate), then the pushing mechanism pushes the plastic-steel door and window out, the feeding servo motor 1105 is started to convey the plastic-steel door and window out through the conveying belt 1104, and manual receiving can be achieved. The multi-angle welding machine has the advantages of reasonable structural design, high operation precision, good synchronism, high welding quality and the like.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. Welding head, its characterized in that includes:

2. The welding head of claim 1, wherein the lower feeding welding mechanism comprises a lower fixing plate and two spaced guide rail supporting seats, the guide rail supporting seats are provided with lower guide rails, the lower guide rails are provided with lower sliding blocks, the lower sliding blocks are provided with lower moving plates, the lower fixing plate is provided with lower pressing jaws A, the lower moving plates are provided with lower pressing jaws B and the upright posts, a lower driving cylinder is arranged between the lower moving plates and the base, the inner side ends of the lower fixing plate and the lower pressing jaws A are designed to be right-angled protrusions A, and the inner side ends of the lower moving plates and the lower pressing jaws B are designed to be right-angled grooves A matched with the right-angled protrusions A.

3. The welding head according to claim 2, wherein the upper feeding welding mechanism comprises an upper support plate, a lifting mechanism is connected above the upper support plate, an upper fixed plate and two upper guide rails arranged at intervals are arranged below the upper support plate, an upper slide block is arranged on the upper guide rails, an upper moving plate is arranged on the upper slide block, an upper press caliper A is arranged on the upper fixed plate, an upper press caliper B is arranged on the upper moving plate, a vertical connecting plate is arranged at the rear end of the upper moving plate, the vertical guide rails comprise a vertical guide rail A arranged in front of the upright post and a vertical guide rail B arranged behind the upright post, a lifting slide block A is arranged on the vertical guide rail A, the lifting slide block A is arranged on the vertical connecting plate, a lifting slide block B is arranged on the vertical guide rail B, a cylinder mounting seat is arranged on the lifting slide block B, and an upper driving cylinder is, the upper driving cylinder is connected with the upper supporting plate, the inner side end parts of the upper fixing plate and the upper pressing clamp A are designed into right-angle protrusions B, and the inner side end parts of the upper moving plate and the upper pressing clamp B are designed into right-angle grooves B matched with the right-angle protrusions B.

4. The welding head according to claim 3, wherein the lifting mechanism comprises a lifting driving cylinder A, a lifting driving cylinder B and a lifting driving cylinder C which are arranged in a triangular shape, the lifting driving cylinder B and the lifting driving cylinder C are directly connected with the upper supporting plate, the lifting driving cylinder A is connected with the upper supporting plate through a guide mechanism, the guide mechanism comprises a guide plate vertically arranged on the upper supporting plate, a guide rail is vertically arranged on the guide plate, the guide rail is connected with the base through a guide slider, and the lifting driving cylinder A is connected with the guide plate.

5. The welding head according to claim 4, wherein the positioning mechanism comprises a side positioning plate, a rear positioning plate and a lower positioning plate which are matched with each other, the side positioning plate is arranged on the lower press jaw A, the rear positioning plate is arranged on the lower press jaw B, a guide seat is arranged below the base, a positioning guide rail is arranged on the guide seat, a positioning guide slider is arranged on the positioning guide rail, a positioning guide sliding plate is arranged on the positioning guide slider, the lower positioning plate is arranged on the positioning guide sliding plate, a lower positioning driving cylinder is arranged at the lower end of the guide seat, the lower positioning driving cylinder is connected with the positioning guide sliding plate, and a through hole A for the lower positioning plate to pass through is arranged on the base.

6. The welding head as claimed in claim 5, wherein the heating mechanism comprises a traverse base, a traverse guide rail is arranged on the traverse base, a traverse slider is fixedly arranged on the base, the traverse guide rail is arranged on the traverse slider, a screw and a nut are arranged between two sides of the traverse base and the base, a return spring is arranged on the screw, a heating driving cylinder is vertically arranged on the traverse base, a heating guide plate is arranged on the traverse base, a heating guide rail is arranged on the heating guide plate, a heating guide slider is arranged on the heating guide rail, a heating guide sliding plate is arranged on the heating guide sliding plate, the heating guide sliding plate is connected with the heating driving cylinder, a heating plate is arranged on the heating guide sliding plate, and a through hole B for the heating plate to pass through is arranged on the upper support plate.

7. The welding head according to claim 6, wherein the base is formed by splicing a plurality of plates, and comprises a bottom plate, side plates, a front plate and a top plate, wherein the side plates are respectively arranged on two sides of the bottom plate and the top plate, the side plates are provided with a pushing mechanism, the pushing mechanism comprises a pushing support, a pushing guide pillar is arranged on the pushing support, a push plate is arranged at the front end of the pushing guide pillar, and a pushing driving cylinder is arranged between the push plate and the pushing support.

8. A multi-angle welding machine comprising a frame, said frame having a welding head as claimed in any one of claims 1 to 7.

9. The multi-angle welding machine according to claim 8, wherein the frame comprises a beam, one end of the beam is provided with a fixed machine head mounting rack, the beam is provided with a transverse guide rail, the transverse guide rail is provided with a transverse machine head mounting rack, a transverse driving mechanism is arranged between the transverse machine head mounting rack and the frame, the fixed machine head mounting rack and the transverse machine head mounting rack are respectively provided with a longitudinal guide rail, one end of each longitudinal guide rail is fixedly provided with a welding machine head for welding plastic-steel doors and windows, one or two welding machine heads for welding plastic-steel doors and windows are movably arranged on the longitudinal guide rail, a longitudinal driving servo motor is arranged on the movably arranged welding machine head for welding plastic-steel doors and windows, the longitudinal driving servo motor is connected with a driving gear, the driving gear is meshed with a driving rack arranged on the fixed machine head mounting rack or, and the fixed machine head mounting frame and the transverse moving machine head mounting frame are respectively provided with a feeding mechanism which is matched with each other.

10. The multi-angle welding machine as claimed in claim 9, wherein the traverse driving mechanism comprises synchronous pulleys spaced apart from each other on the frame, a synchronous belt is disposed between the synchronous pulleys, the synchronous belt is connected to the traverse head mounting frame, one of the synchronous pulleys is connected to a traverse driving servo motor, the feeding mechanism comprises two feeding lift cylinders spaced apart from each other, a support rod is disposed on each feeding lift cylinder, a conveying pulley is disposed at each end of the support rod, a conveying belt is disposed between the two conveying pulleys, and one of the conveying pulleys is connected to the feeding servo motor.