A gantry welding machine

Abstract

This application relates to the field of gantry welding machine technology, and provides a gantry welding machine including a gantry frame. Hydraulic lifters are provided on both sides of the top front end of the gantry frame. Scrapers are rotatably connected to the interior of multiple through slots near the connecting cylinder. Z-shaped rotating plates abut against the output ends of multiple electric push rods. Fixed plates abut against the top of the Z-shaped rotating plates away from the connecting cylinder. Baffles are fixedly connected to each pair of fixed plates on adjacent sides. Second fixed plates abut against the top of the Z-shaped rotating plates near the connecting cylinder. Baffles are fixedly connected to each pair of fixed plates on adjacent sides. This invention, through the setting of the shielding mechanism, can alternately shield molten metal splashes and remove partially solidified molten metal, preventing excessive dripping of molten metal into the welding area before solidification, and further preventing its accumulation from interfering with the welding arc.

Description

Technical Field

[0001] This invention relates to the field of gantry welding machine technology, specifically to a gantry welding machine. Background Technology

[0002] Gantry welding machines are large industrial equipment, typically consisting of two columns and a crossbeam, providing stable support. They can be used in conjunction with various welding methods such as arc welding, laser welding, and TIG welding to efficiently complete the welding of various large steel or structural components, thus possessing a promising market prospect.

[0003] However, during actual welding operations, external factors such as fluctuations in current and voltage, surface contamination of welding materials, and insufficient welding gas protection may cause molten metal to splash after the flux melts due to instability of the molten pool. Furthermore, the splashed molten metal can solidify into slag and form an impurity layer, affecting the fusion of the remaining flux. In addition, when too much splashed molten metal accumulates, it may even hinder the normal propagation of the arc, increase arc disturbance, and further affect the welding quality. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a gantry welding machine that solves the problem that splashed molten metal may interfere with subsequent welding processes and affect the surface quality of workpieces after forming weld slag.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a gantry welding machine, including a gantry frame, with hydraulic lifts provided on both sides of the top front end of the gantry frame, a connecting plate fixedly connected to the bottom end of each of the two hydraulic lifts, a welding head fixedly connected to the middle of the bottom end of each of the two connecting plates, a shielding mechanism provided on the outer side of each of the two welding heads, and auxiliary mechanisms provided at the front and rear ends of each of the two connecting plates.

[0006] The shielding mechanism includes a connecting cylinder. The top ends of both connecting cylinders are fixedly connected to the outer side of the bottom end of a connecting plate. The bottom ends of both connecting cylinders are fixedly connected to a connecting plate. Both connecting plates have multiple through slots. Scrapers are rotatably connected to the side of each through slot near the connecting cylinder. Stops are fixedly connected to both sides of the top of each scraper. Electric push rods are fixedly connected to the four corners of the bottom end of both connecting plates. The output ends of each electric push rod abut against a Z-shaped rotating plate. The top of each Z-shaped rotating plate abuts against a fixing plate on the side away from the connecting cylinder. A baffle is fixedly connected to each pair of fixing plates on the side closest to each other. The top of each Z-shaped rotating plate abuts against a fixing plate on the side closest to the connecting cylinder. A baffle is fixedly connected to each pair of fixing plates on the side closest to each other.

[0007] Preferably, each of the plurality of fixed plates has a through groove 2 in its middle, and a rotating rod 1 is slidably connected inside each of the plurality of through groove 2. The bottom end of the rotating rod 1 is fixedly connected to the top of the Z-shaped rotating plate on the side away from the connecting cylinder. Each of the plurality of fixed plates has a through groove 3 in its middle, and a rotating rod 2 is slidably connected inside each of the plurality of through groove 3. The bottom end of the rotating rod 2 is fixedly connected to the top of the Z-shaped rotating plate on the side near the connecting cylinder.

[0008] Preferably, each of the multiple Z-shaped rotating plates is rotatably connected to a U-shaped fixing frame in the middle, and the bottom end of the U-shaped fixing frame is fixedly connected to the four corners of the top of the connecting plate two, and counterweights are fixedly connected to both sides of the top of the multiple fixing plates two.

[0009] Preferably, multiple U-shaped frames are fixedly connected to the outer sides of the top of the connecting plates on both sides, and connecting blocks are slidably connected to the outer sides of the multiple U-shaped frames. The outer sides of the connecting blocks are fixedly connected to the two sides of the baffle away from the connecting cylinder. Multiple U-shaped frames are fixedly connected to the inner sides of the top of the connecting plates on both sides, and connecting blocks are slidably connected to the outer sides of the multiple U-shaped frames. The outer sides of the connecting blocks are fixedly connected to the two sides of the baffle away from the connecting cylinder.

[0010] Preferably, multiple reinforcing plates are fixedly connected to the outer sides of the connecting cylinders on both sides, and the top ends of the multiple reinforcing plates are fixedly connected to the bottom end of the connecting plate.

[0011] Preferably, the auxiliary mechanism includes a support frame, with the front and rear support frames respectively fixedly connected to the front and rear ends of the connecting plates on both sides at their respective ends. A servo motor is fixedly connected to the middle of the top of each of the multiple support frames. The output ends of the multiple servo motors pass through the support frames and are fixedly connected to transmission rods. An incomplete gear is fixedly connected to the bottom of each of the multiple transmission rods. A toothed plate meshes with the outer side of each of the multiple incomplete gears. A connecting frame is provided below each of the multiple support frames. A vertical plate is fixedly connected to the front and rear sides of the bottom of each of the multiple toothed plates. The bottom of the vertical plate is fixedly connected to the front and rear sides of the top of the connecting frame. Multiple swing plates are slidably connected inside each of the multiple connecting frames. The front and rear sides of the top of each of the multiple swing plates are rotatably connected to the bottom of the support frame.

[0012] Preferably, the bottom ends of the plurality of incomplete gears are rotatably connected to the middle of the bottom end of the support frame, and the bottom ends of the plurality of toothed plates are slidably connected to the bottom end of the support frame.

[0013] Preferably, the auxiliary mechanism further includes incomplete gears II, the middle of which is fixedly connected to the upper part of the outer side of the servo motor, the outer side of which is meshed with transmission gears, the middle of which is fixedly connected to the top of which is threaded rod, the top of which is rotatably connected to a support frame and a limit frame, the outer side of which is threadedly connected to a sliding plate, the front and rear sliding plates are fixedly connected to a pointer at the opposite end, and the front and rear limit frames are fixedly connected to a scale plate at the opposite end.

[0014] Preferably, the outer sides of the top ends of the plurality of incomplete gears are rotatably connected to the middle of the top end of the support frame, and the top ends of the plurality of transmission gears are rotatably connected to one side of the top end of the support frame.

[0015] Preferably, the bottom ends of the plurality of limiting frames are fixedly connected to one side of the top of the support frame, and the two ends of the slide plate are slidably connected to the two sides inside the limiting frame.

[0016] This invention provides a gantry welding machine. It has the following beneficial effects:

[0017] 1. The present invention can block molten metal splashes during the welding process to a certain extent by setting up a shielding mechanism, so as to prevent them from falling into the area to be welded and affecting the normal melting of the flux, and reducing the probability of corrosion or damage to some high-precision workpieces, thus preventing them from needing additional processing. In addition, by alternating shielding, while blocking molten metal splashes, it can actively remove the molten metal that has initially solidified, so as to avoid the surface being covered with a layer of welding slag composed of molten metal after a long period of continuous shielding, which would not be able to effectively cool the subsequent molten metal. This would prevent the molten metal from continuing to drip into the welding area due to gravity before solidification, and further prevent excessive accumulation of molten metal from interfering with the welding arc.

[0018] 2. The present invention, through the setting of auxiliary mechanisms, can appropriately accelerate the airflow in the welding area without occupying too much space, so as to avoid excessive irritating gases generated during welding and prevent significant interference with the temperature of the welding area. At the same time, it can assist in recording the working time during continuous welding operations, so that the staff can arrange the welding operation time appropriately, avoid increasing equipment wear and tear due to long-term continuous use, and provide time for processing the welding slag collected by the shielding mechanism. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front structure of the present invention;

[0020] Figure 2 This is a side sectional view of the present invention;

[0021] Figure 3 This is a schematic diagram of the connection structure of the connecting plate of the present invention;

[0022] Figure 4 This is a cross-sectional schematic diagram of the connecting cylinder connection structure of the present invention;

[0023] Figure 5 This is a cross-sectional schematic diagram of the connection structure of the connecting plate two of the present invention;

[0024] Figure 6 This is a cross-sectional schematic diagram of the baffle-connection structure of this invention;

[0025] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A;

[0026] Figure 8 For the present invention Figure 6 Enlarged schematic diagram of the structure at point B;

[0027] Figure 9 For the present invention Figure 2 A magnified schematic diagram of the structure at point C.

[0028] The components include: 1. Gantry frame; 2. Hydraulic lift; 3. Connecting plate one; 4. Welded machine head; 5. Blocking mechanism; 501. Connecting cylinder; 502. Connecting plate two; 503. Through groove one; 504. Scraper; 505. Electric push rod; 506. Z-shaped rotating plate; 507. Fixed plate one; 508. Baffle one; 509. Fixed plate two; 510. Baffle two; 511. Through groove two; 512. Rotating rod one; 513. Through groove three; 514. Rotating rod two; 515. U-shaped fixing frame; 516. Counterweight block; 517. 518. U-shaped frame 1; 519. Connecting block 1; 520. U-shaped frame 2; 521. Connecting block 2; 522. Stop block; 523. Reinforcing plate; 6. Auxiliary mechanism; 601. Support frame; 602. Servo motor; 603. Transmission rod; 604. Incomplete gear 1; 605. Gear plate; 606. Connecting frame; 607. Vertical plate; 608. Swing plate; 609. Incomplete gear 2; 610. Transmission gear; 611. Threaded rod; 612. Limiting frame; 613. Slide plate; 614. Pointer; 615. Scale plate. Detailed Implementation

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see the appendix Figure 1 -Appendix Figure 7This invention provides a gantry welding machine, including a gantry frame 1. Hydraulic lifts 2 are provided on both sides of the top front end of the gantry frame 1. Connecting plates 3 are fixedly connected to the bottom ends of the hydraulic lifts 2 on both sides. Welding heads 4 are fixedly connected to the middle of the bottom ends of the connecting plates 3 on both sides. A shielding mechanism 5 is provided on the outer side of the welding heads 4 on both sides. Auxiliary mechanisms 6 are provided at the front and rear ends of the connecting plates 3 on both sides.

[0031] The shielding mechanism 5 includes connecting cylinders 501. The top ends of both connecting cylinders 501 are fixedly connected to the outer side of the bottom end of connecting plate 3. The bottom ends of both connecting cylinders 501 are fixedly connected to connecting plate 2 502. Both connecting plate 2 502 has multiple through slots 503. Scrapers 504 are rotatably connected to the side of each through slot 503 near the connecting cylinder 501. Stops 521 are fixedly connected to both sides of the top of each scraper 504. The four corners of the bottom end of both connecting plates 3 are fixedly connected to the shielding mechanism 5. An electric push rod 505 is fixedly connected. The output ends of multiple electric push rods 505 abut against Z-shaped rotating plates 506. The top of multiple Z-shaped rotating plates 506 abut against a fixing plate 507 on the side away from the connecting cylinder 501. A baffle 508 is fixedly connected to the side of the fixing plate 507 that is close to each other. A fixing plate 509 is fixedly connected to the side of the top of multiple Z-shaped rotating plates 506 that is close to the connecting cylinder 501. A baffle 510 is fixedly connected to the side of the fixing plate 509 that is close to each other.

[0032] The gantry frame 1 provides support for the hydraulic lift 2, allowing it to move the connecting plate 3, welding head 4, and related mechanisms closer to the placed workpiece. After the flux is fed in by gravity, the welding head 4 can then perform welding along the workpiece. Simultaneously, the Z-shaped rotating plate 506 rotates due to the synchronous downward movement of the electric push rods 505. The fixed plates 507 and 509, which are in contact with the top sides of the Z-shaped rotating plate 506, can respectively drive the baffles 508 and 510 to move vertically relative to each other. This ensures that the area around the welding head 4 is always shielded by the baffles 508 or 510 during operation, preventing damage in case of current / voltage fluctuations or surface contamination. This design allows most of the splashed molten metal to be blocked by the highly thermally conductive metal baffle 508 or baffle 510, resulting in rapid cooling and initial solidification on its surface. This reduces the probability of molten metal splashing onto the welding area and other areas of the workpiece surface, preventing slag from the molten metal from interfering with the normal performance of the flux. It also avoids damage to the surface of some high-precision workpieces caused by the high-temperature molten metal, thus preventing additional repair work. Furthermore, when the baffle 508 or baffle 510 moves upward along its respective channel 503, the scraper 504 is connected to the channel 503 via a rod. Therefore, the slag formed on their respective surfaces by the initial solidification of the molten metal can push the scraper 504 upward around the rod. The rotation ensures that the welding slag on the surface of baffle 508 or baffle 510 can pass through the through groove 503 and move above the scraper 504. As each electric push rod 505 returns synchronously, under the cooperation of gravity and related auxiliary components, the Z-shaped rotating plate 506 can actively drive the fixed plate 507 and fixed plate 509 to rotate in the opposite direction and return to the initial state. At this time, baffle 508 and baffle 510 can also change their direction of movement. However, since the scraper 504 cannot rotate downward due to the block 521, the welding slag on the surface of baffle 508 or baffle 510 can be scraped off by the scraper 504 when it moves downward. This avoids the situation where baffle 508 or baffle 510 cannot effectively block subsequent metal due to the welding slag layer on its surface during long-term continuous operation. The liquid is cooled to prevent it from dripping back onto the workpiece surface or flux area before solidification due to gravity. This also prevents frequent arc fluctuations caused by a large amount of slag in the welding area, thus preventing a decline in welding quality. In summary, this improves the reliability of the equipment during continuous operation. Furthermore, the movement speed of the electric push rod 505 needs to be selected according to actual conditions to ensure that the molten metal, when moved upwards by the baffle 508 or baffle 510, will not fail to push the scraper 504 upwards due to slag not being solidified. Similarly, the reciprocating speed of the electric push rod 505 should not be too slow to prevent the slag from completely solidifying and failing to be scraped off by the scraper 504 when moving downwards with the baffle 508 or baffle 510. Also, the baffle 521 is relatively thick.To prevent weld slag accumulated on the top of connecting plate 502 from falling into the welding area through the gap left by the stop block 521 as it rotates upwards, a cloth strip can be added to the top of the stop block 521 near the connecting cylinder 501 as needed to prevent weld slag from hindering its rotation.

[0033] Please see the appendix Figure 7 Each of the multiple fixed plates 507 has a through groove 511 in the middle. Each of the multiple through grooves 511 has a rotating rod 512 slidably connected inside. The bottom end of the rotating rod 512 is fixedly connected to the top of the Z-shaped rotating plate 506 on the side away from the connecting cylinder 501. Each of the multiple fixed plates 509 has a through groove 513 in the middle. Each of the multiple through grooves 513 has a rotating rod 514 slidably connected inside. The bottom end of the rotating rod 514 is fixedly connected to the top of the Z-shaped rotating plate 506 on the side near the connecting cylinder 501.

[0034] By using rotating rod 512 and rotating rod 514, which can rotate and move along through slot 2 511 and through slot 3 513, the stability of fixed plate 1 507 and fixed plate 2 509 can be maintained during the rotation of Z-shaped rotating plate 506, avoiding significant impact on fixed plate 1 507 and fixed plate 2 509 when pushed by Z-shaped rotating plate 506, thus improving the overall transmission quality.

[0035] Please see the appendix Figure 7 Each of the multiple Z-shaped rotating plates 506 is rotatably connected to a U-shaped fixing frame 515 in the middle. The bottom of the U-shaped fixing frame 515 is fixedly connected to the four corners of the top of the connecting plate 2 502. Each of the multiple fixing plates 2 509 is fixedly connected to a counterweight block 516 on both sides of the top.

[0036] The U-shaped fixing bracket 515 can limit and support the Z-shaped rotating plate 506 to prevent it from shaking when the end of the Z-shaped rotating plate 506 away from the connecting cylinder 501 is subjected to the electric push rod 505. The counterweight block 516 can be used to move the fixing plate 507 and the baffle 508 upward when the electric push rod 505 moves upward and stops applying pressure, and can cooperate with the fixing plate 509 and the baffle 510 to make the fixing plate 507 and the baffle 508 move upward synchronously with the electric push rod 505, thus preparing the baffle 508 and the baffle 510 for subsequent reuse.

[0037] Please see the appendix Figure 4 Appendix Figure 7 and attached Figure 8Multiple U-shaped frames 517 are fixedly connected to the outer top of the connecting plates 502 on both sides. Connecting blocks 518 are slidably connected to the outer sides of the multiple U-shaped frames 517. The outer sides of the connecting blocks 518 are fixedly connected to the two sides of the baffle 508 away from the connecting cylinder 501. Multiple U-shaped frames 519 are fixedly connected to the inner top of the connecting plates 502 on both sides. Connecting blocks 520 are slidably connected to the outer sides of the multiple U-shaped frames 519. The outer sides of the connecting blocks 520 are fixedly connected to the two sides of the baffle 510 away from the connecting cylinder 501.

[0038] The U-shaped frame 517 and the connecting block 518 can work with the connecting plate 502 to limit the movement of each baffle 508, so as to prevent the baffle 508 from shaking when it moves vertically. Similarly, the U-shaped frame 519 and the connecting block 520 can also limit the movement direction of the baffle 510.

[0039] Please see the appendix Figure 4 Appendix Figure 7 and attached Figure 8 Multiple reinforcing plates 522 are fixedly connected to the outer sides of the connecting cylinders 501 on both sides, and the tops of the multiple reinforcing plates 522 are fixedly connected to the bottom of the connecting plate 3.

[0040] The reinforcing plate 522 can increase the contact area between the connecting plate 3 and the connecting cylinder 501, thereby improving their mutual stability and reducing the probability of breakage at the contact surface.

[0041] Please see the appendix Figure 3 and attached Figure 9 The auxiliary mechanism 6 includes a support frame 601. The front and rear support frames 601 are fixedly connected to the front and rear ends of the connecting plates 3 on both sides at their respective ends. Servo motors 602 are fixedly connected to the middle of the top of each of the multiple support frames 601. The output ends of the multiple servo motors 602 pass through the support frame 601 and are fixedly connected to the transmission rods 603. The bottom ends of the multiple transmission rods 603 are fixedly connected to the incomplete gears 604. The outer sides of the multiple incomplete gears 604 are meshed with toothed plates 605. A connecting frame 606 is provided below each of the multiple support frames 601. The bottom ends of the multiple toothed plates 605 are fixedly connected to the front and rear sides of the bottom. The bottom ends of the upright plates 607 are fixedly connected to the front and rear sides of the top of the connecting frame 606. Multiple swing plates 608 are slidably connected inside the multiple connecting frames 606. The top ends of the multiple swing plates 608 are rotatably connected to the bottom of the support frame 601.

[0042] The support frame 601 provides support points for related components. When the welding head 4, electric push rod 505, etc. are started, the servo motor 602 drives the transmission rod 603 and the incomplete gear 604 to rotate in one direction. Since only a portion of the surface of the incomplete gear 604 has teeth, and the toothed plate 605 has two rows of corresponding teeth meshing with it, the toothed plate 605 can reciprocate linearly in the horizontal direction as the incomplete gear 604 rotates. Furthermore, the vertical plate 607 can drive the connecting frame through the groove reserved at the bottom of the support frame 601. 606 moves synchronously with the toothed plate 605. At this time, the evenly distributed swing plate 608 cannot move because its top is restricted by the support frame 601. Therefore, it can swing with the horizontal movement of the connecting frame 606 through the rods that contact the connecting frame 606. This appropriately accelerates the air flow without affecting the temperature of the welding area, preventing the irritating odor generated during welding from affecting the health of nearby workers. At the same time, the swing plate 608 can be placed along the edge of the welding area to avoid the space occupied by fan blades and other objects affecting the workers' adjustment of the welding head 4 parameters.

[0043] Please see the appendix Figure 9 The bottom ends of multiple incomplete gears 604 are rotatably connected to the middle of the inner bottom end of the support frame 601, and the bottom ends of multiple toothed plates 605 are slidably connected to the inner bottom end of the support frame 601.

[0044] The support frame 601 can limit and guide the incomplete gear 604 and the toothed plate 605 respectively, so as to prevent the incomplete gear 604 and the toothed plate 605 from being unable to transmit normally due to the offset between them when they move.

[0045] Please see the appendix Figure 3 and attached Figure 9 The auxiliary mechanism 6 also includes incomplete gears 609. The middle of each incomplete gear 609 is fixedly connected to the upper part of the outside of the servo motor 602. Each incomplete gear 609 is meshed with a transmission gear 610. Each transmission gear 610 is fixedly connected to the middle of its top. Each threaded rod 611 passes through the support frame 601 and is rotatably connected to a limit frame 612. Each threaded rod 611 is threadedly connected to a sliding plate 613 on its outer side. Each front and rear sliding plate 613 is fixedly connected to a pointer 614 at one end away from each other. Each front and rear limit frame 612 is fixedly connected to a scale plate 615 at one end away from each other.

[0046] By using the incomplete gear 609, the transmission gear 610 can only rotate slightly when the transmission rod 603 rotates once, thus slowing down the movement speed of the threaded rod 611, the slide plate 613, etc. As the equipment is used continuously for a long time, the transmission gear 610 can gradually drive the threaded rod 611 to rotate under the action of the incomplete gear 609, causing the slide plate 613 to move upward. At this time, the pointer 614 connected to the slide plate 613 can gradually move upward along the scale plate 615, so that the staff can understand the continuous running time of the equipment in real time. This allows the staff to make appropriate adjustments to the welding operation to prevent excessive wear and tear on the equipment due to long-term continuous use. It also allows the staff to check the welding slag accumulated on the top of the connecting plate 502 at regular intervals, preventing excessive welding slag from sliding into the welding area during the welding process. In addition, the slide plate 613, pointer 614, etc. are mechanically driven, so they can be used in conjunction with the movement of the swing plate 608, transmission gear 610, etc. to judge their usage effect, improving the reliability of timing and the resistance to the environment.

[0047] Please see the appendix Figure 3 and attached Figure 9 The outer tops of multiple incomplete gears 609 are rotatably connected to the middle of the inner top of the support frame 601, and the tops of multiple transmission gears 610 are rotatably connected to one side of the inner top of the support frame 601.

[0048] The support frame 601 can limit the movement of the incomplete gear 609 and the transmission gear 610 to prevent them from completely disengaging due to displacement, thereby ensuring the stability and reliability of subsequent transmission.

[0049] Please see the appendix Figure 9 The bottom ends of multiple limit frames 612 are fixedly connected to one side of the top of the support frame 601, and the two ends of the slide plate 613 are slidably connected to the two sides inside the limit frame 612.

[0050] The support frame 601 can support the limiting frame 612, thereby preventing the threaded rod 611 from shaking when it rotates, and ensuring that the slide plate 613 can only move upward along the threaded rod 611, preventing the slide plate 613 from rotating with the threaded rod 611 and failing to properly drive the pointer 614 to move vertically along the scale plate 615.

[0051] Working principle: During use, the hydraulic lift 2 sends the connecting plate 3, welding head 4, shielding mechanism 5, and auxiliary mechanism 6 to the welding area on the workpiece surface. Then, after the flux is fed, the welding head 4 performs the welding operation. Simultaneously, the downward movement of the electric push rod 505 causes the Z-shaped rotating plate 506 to rotate under the support of the U-shaped fixing frame 515. This, in conjunction with the through slot 2 511, rotating rod 1 512, through slot 3 513, and rotating rod 2 514, causes the fixing plate 1 507 to move the surrounding baffles 1 508 downwards, and the fixing plate 2 509 to move the surrounding baffles 2 510 upwards. If molten metal splashes during the welding process... The splash can be blocked by baffle 508 or baffle 510 to prevent it from splashing onto the area to be welded or other areas and causing damage or interference. The molten metal adhering to the surface of baffle 508 or baffle 510 can gradually cool and solidify. As baffle 510 moves upward along the through groove 503, it pushes the corresponding scraper 504, causing the stop block 521 to rotate upward, thus moving it above the scraper 504. At this time, the downward-moving baffle 508 can replace baffle 510 to continue blocking the splash of molten metal. As the electric push rod 505 returns, the weight of the counterweight 516 and baffle 510 can apply force to the Z-shaped rotating plate 506. Gravity causes the Z-shaped rotating plate 506 to return to its initial state, allowing the first baffle 508 to repeat the upward movement of the second baffle 510. During its downward movement, the second baffle 510, in conjunction with the scraper 504 and the stop block 521, uses gravity to scrape away the weld slag that has partially solidified from the molten metal on its surface. This prevents the formation of a weld slag layer that would hinder heat dissipation from the subsequently blocked molten metal, thus preventing a large accumulation of molten metal in the welding area and the formation of weld slag that would affect the normal operation of the welding arc. Simultaneously, the servo motor 602 enables the transmission rod 603 and the incomplete gear 604 to rotate unidirectionally, thus coordinating with the toothed plate 605 and the support frame 601. The upright plate 607 can drive the connecting frame 606 and the evenly distributed swing plate 608 on its inner side to swing back and forth, so as to appropriately accelerate the air flow along the edge of the welding area without occupying too much space, and prevent harmful irritating gases from being too concentrated. At the same time, with the rotation of the transmission rod 603, the movement amplitude of the threaded rod 611, the slide plate 613 and the pointer 614 can be reduced through the intermittent transmission of the incomplete gear 609 and the transmission gear 610. This allows for relatively reliable and convenient recording of welding operation time over a long period of time, and prevents the accumulation of welding slag on the top of the welding head 4 or the connecting plate 502 after long-term continuous operation from exceeding the normal allowable range.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gantry welding machine, comprising a gantry frame (1), characterized in that, Hydraulic lifts (2) are provided on both sides of the front top of the gantry frame (1). A connecting plate (3) is fixedly connected to the bottom of the hydraulic lifts (2) on both sides. A welding head (4) is fixedly connected to the middle of the bottom of the connecting plate (3) on both sides. A shielding mechanism (5) is provided on the outside of the welding head (4) on both sides. An auxiliary mechanism (6) is provided at the front and rear ends of the connecting plate (3) on both sides. The shielding mechanism (5) includes a connecting cylinder (501). The top ends of the connecting cylinders (501) on both sides are fixedly connected to the outer side of the bottom end of the connecting plate one (3). The bottom ends of the connecting cylinders (501) on both sides are fixedly connected to the connecting plate two (502). The connecting plate two (502) on both sides has multiple through slots one (503) inside. The multiple through slots one (503) are rotatably connected to the side of the connecting cylinder (501) inside. The top ends of the multiple scrapers (504) are fixedly connected to the two sides of the top end of the multiple scrapers (504). The bottom ends of the connecting plate one (3) on both sides are fixedly connected to the connecting cylinders (501). An electric push rod (505) is fixedly connected to each of the angles. The output ends of the multiple electric push rods (505) abut against Z-shaped rotating plates (506). The top of the multiple Z-shaped rotating plates (506) abuts against a fixing plate (507) on the side away from the connecting cylinder (501). The fixing plates (507) are fixedly connected to a baffle (508) on the side where they are close to each other. The top of the multiple Z-shaped rotating plates (506) abuts against a fixing plate (509) on the side where they are close to the connecting cylinder (501). The fixing plates (509) are fixedly connected to a baffle (510) on the side where they are close to each other. The auxiliary mechanism (6) includes a support frame (601). The front and rear support frames (601) are respectively fixedly connected at one end to the front and rear ends of the connecting plates (3) on both sides. A servo motor (602) is fixedly connected to the middle of the top of each of the support frames (601). The output ends of the servo motors (602) pass through the support frames (601) and are fixedly connected to a transmission rod (603). An incomplete gear (604) is fixedly connected to the bottom end of each of the transmission rods (603). Gear 1 (604) is meshed with toothed plates (605) on its outer side. A connecting frame (606) is provided below each of the multiple support frames (601). A vertical plate (607) is fixedly connected to the front and rear sides of the bottom end of each of the multiple toothed plates (605). The bottom end of the vertical plate (607) is fixedly connected to the front and rear sides of the top end of the connecting frame (606). Multiple swing plates (608) are slidably connected inside each of the multiple connecting frames (606). The front and rear sides of the top end of each of the multiple swing plates (608) are rotatably connected to the bottom end of the support frame (601). The bottom ends of the multiple incomplete gears (604) are rotatably connected to the middle of the bottom end of the support frame (601), and the bottom ends of the multiple tooth plates (605) are slidably connected to the bottom end of the support frame (601). The auxiliary mechanism (6) also includes an incomplete gear two (609), the middle of which is fixedly connected to the upper part of the outside of the servo motor (602), the outer side of which is meshed with a transmission gear (610), the top of which is fixedly connected to a threaded rod (611), the top of which is pierced through the support frame (601) and rotatably connected to a limit frame (612), the outer side of which is threadedly connected to a sliding plate (613), the front and rear sliding plates (613) are fixedly connected to a pointer (614) at the opposite end, and the front and rear limit frames (612) are fixedly connected to a scale plate (615) at the opposite end. The outer sides of the top of each of the incomplete gears (609) are rotatably connected to the middle of the top of the support frame (601), and the tops of each of the transmission gears (610) are rotatably connected to one side of the top of the support frame (601). The bottom ends of the multiple limiting frames (612) are fixedly connected to one side of the top of the support frame (601), and the two ends of the sliding plate (613) are slidably connected to the two sides inside the limiting frame (612).

2. The gantry welding machine according to claim 1, characterized in that, Each of the multiple fixed plates (507) has a through groove (511) in the middle. Each of the multiple through grooves (511) has a rotating rod (512) slidably connected inside. The bottom end of the rotating rod (512) is fixedly connected to the top of the Z-shaped rotating plate (506) on the side away from the connecting cylinder (501). Each of the multiple fixed plates (509) has a through groove (513) in the middle. Each of the multiple through grooves (513) has a rotating rod (514) slidably connected inside. The bottom end of the rotating rod (514) is fixedly connected to the top of the Z-shaped rotating plate (506) on the side near the connecting cylinder (501).

3. The gantry welding machine according to claim 1, characterized in that, Each of the Z-shaped rotating plates (506) is rotatably connected to a U-shaped fixing frame (515). The bottom of the U-shaped fixing frame (515) is fixedly connected to the four corners of the top of the connecting plate two (502). Each of the two sides of the top of the fixing plate two (509) is fixedly connected to a counterweight (516).

4. A gantry welding machine according to claim 1, characterized in that, Multiple U-shaped frames (517) are fixedly connected to the outer top of the connecting plates (502) on both sides. Connecting blocks (518) are slidably connected to the outer sides of the multiple U-shaped frames (517). The outer sides of the connecting blocks (518) are fixedly connected to the two sides of the baffle (508) away from the connecting cylinder (501). Multiple U-shaped frames (519) are fixedly connected to the inner top of the connecting plates (502) on both sides. Connecting blocks (520) are slidably connected to the outer sides of the multiple U-shaped frames (519). The outer sides of the connecting blocks (520) are fixedly connected to the two sides of the baffle (510) away from the connecting cylinder (501).

5. A gantry welding machine according to claim 1, characterized in that, Multiple reinforcing plates (522) are fixedly connected to the outer sides of the connecting cylinders (501) on both sides, and the tops of the multiple reinforcing plates (522) are fixedly connected to the bottom of the connecting plate (3).

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