A multifunctional welding device for valve processing

Abstract

This invention discloses a multifunctional valve processing welding device, relating to the field of valve welding processing technology. It includes a tooling table with a horizontally mounted reference positioning platform on its top. The reference positioning platform connects to the flange hole at the bottom of a slanted slide gate valve via a positioning pin. This multifunctional valve processing welding device is equipped with a horizontal centering and vertical limiting alignment mechanism, enabling the valve body and valve plate of the slanted slide gate valve to achieve centering and tightening from the inside out and multi-point fastening from top to bottom. A pressure rod, adjusted by a clamping rod, drives a spherical positioning block to position the valve body on the upper side of the valve plate at the docking angle. Simultaneously, an anti-loosening mechanism laterally compresses the valve plate, preventing warping of the inclined valve plate on the slanted sides of the two valve bodies. Furthermore, the anti-loosening mechanism avoids obstructing the valve body of the slanted slide gate valve, ensuring unobstructed welding and resolving issues such as loosening, misalignment, and warping of valve joints.

Description

Technical Field

[0001] This invention relates to the field of valve welding technology, specifically to a multifunctional valve welding device. Background Technology

[0002] In shipboard solid material conveying systems, slanted slide gate valves are often indispensable for regulating or cutting off the flow of solid materials. A typical slanted slide gate valve consists of two flanged slanted valve bodies, a valve plate located between the two valve bodies, and a slide plate located inside the valve plate. The connection between the valve body and the valve plate is formed by welding.

[0003] As a valve capable of flow regulation or shut-off control, the oblique slide gate valve can be used not only for conveying solid materials on ships, but also for shut-off control of enclosed dust, slag, mortar and other particulate materials in industries such as mining, metallurgy and building materials. This gives the oblique slide gate valve a wide range of applications and the ability to perform multiple functions such as shut-off, flow control and sealing.

[0004] In existing technologies, welding the beveled side of the valve body to the valve plate of a slanted slide gate valve requires the use of multiple clamps to hold the valve body at different positions, ensuring that the beveled sides of the two valve bodies can accurately abut against the opening of the valve plate. However, for the splicing of the valve plate and the beveled sides of the two valve bodies, the valve plate is prone to tilting, slipping, and wobbling between the two beveled sides. In addition, during conventional lateral clamping, the two valve bodies and the valve plate may experience misalignment at different positions, making it difficult to center them. Furthermore, the valve plate tilted between the two valve bodies is prone to warping during welding, making it impossible to guarantee the welding quality. Moreover, using conventional clamps to hold the two valve bodies and the valve plate separately will obstruct the periphery of the splice seam, thus affecting the welding operation of the welding equipment on the splice seam. Summary of the Invention

[0005] The purpose of this invention is to provide a multifunctional welding device for valve processing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional valve processing welding device, including a tooling table, wherein a reference positioning table is horizontally installed on the top of the tooling table, and the reference positioning table is connected to the flange hole at the bottom of the inclined slide gate valve through a positioning pin;

[0007] The reference positioning platform is equipped with an alignment and shaping mechanism for horizontal centering and vertical limiting of the mutually abutting oblique insert gate valve components. The alignment and shaping mechanism is used to shape the positioning assembly of the two oblique valve bodies and valve plates.

[0008] The alignment and shaping mechanism includes clamping rods that slide in a straight groove. The clamping rods, which are far apart from each other, provide multi-point support for the inner wall surfaces of the valve body and the valve plate. A flip-up fastening claw is provided at the center of the top of the clamping rod. The fastening claw, which can be flipped down, is used to longitudinally pressurize and clamp the flange on the top of the valve body.

[0009] The tooling table is equipped with an anti-loosening mechanism that avoids the oblique insertion gate valve body. The anti-loosening mechanism that avoids the oblique insertion gate valve body laterally squeezes the valve plate to prevent the inclined valve plate from warping at the oblique opening side of the two valve bodies.

[0010] Preferably, a driving component is provided on the side of the tooling table away from the reference positioning table, and the driving component includes a turntable coaxially embedded in the lower surface of the reference positioning table;

[0011] A worm gear is fixed to the bottom of the turntable, and a drive motor is installed on the bottom wall of the tooling table. A worm that meshes with the worm gear is fixed to the output end of the drive motor.

[0012] Preferably, the surface of the turntable has an eccentric arc-shaped opening, and the surface of the reference positioning platform has straight grooves at equal angles. The clamping rod is moved and adjusted along the straight grooves through the eccentric arc-shaped opening on the surface of the turntable.

[0013] Preferably, a vertical rod is fixed to the center of the top wall of the reference positioning platform, and a sliding column is sleeved on the outside of the vertical rod. A hollow frame that penetrates the vertical rod is installed at the top of the sliding column.

[0014] A pull plate is hinged between the clamp rod and the slide column. The pull plate causes the clamp rod, which is far apart from each other, to move the slide column upward. A sensing module for detecting the pressure between the clamp rod and the inner wall of the valve body is embedded in the surface of the clamp rod.

[0015] Preferably, a motor is also installed inside the clamping rod, and the output end of the motor is connected to a lead screw. The lead screw is threadedly connected to a sliding sleeve that fits against the surface of the clamping rod, and a toothed plate is provided at the upper end of the sliding sleeve.

[0016] Limiting plates and adjusting rings are embedded on both sides of the top of the clamping rod. The adjusting rings are rotatably connected to the upper end of the limiting plates. U-shaped cavities are opened in the middle of both the limiting plates and the adjusting rings.

[0017] Preferably, the fastening claw has anti-deviation blocks integrally formed on both sides that mate with the U-shaped cavity;

[0018] One end of the anti-deviation block is fixed with a directional gear, and a tension spring for pulling the fastening claw downward is connected inside the clamping rod.

[0019] Preferably, a traction arm is movably connected to the top of the upright, and a pressure rod that docks with the traction arm is hinged to the top of the hollow frame. A spherical positioning block for positioning and engaging the flange hole is fixed to the end of the pressure rod away from the hollow frame.

[0020] Preferably, the anti-loosening mechanism includes a rack inclinedly disposed on one side of the tooling table, and a slide rail for sliding the rack is fixed on one side of the tooling table, wherein the tooth surfaces of the rack are located on opposite sides of the two ends of the rack.

[0021] The rack has a toothed groove on its lower side, and the worm gear has a spline tooth that meshes with the toothed groove at its front end away from the drive motor.

[0022] Preferably, the tooling table has symmetrically opened insertion holes on both sides near the reference positioning table, and a strong magnet is embedded in one end of the insertion hole;

[0023] The tooling table has symmetrical insertion holes on both sides connected to a rotating shaft. A strong magnet in the insertion hole magnetically attracts the end of the rotating shaft, and a blocking arm is fixed at one end of the rotating shaft at a 45° angle. The blocking arms, which rotate around the rotating shaft until they are parallel to each other, are used to clamp the side edge of the valve plate.

[0024] The connection end between the rotating shaft and the blocking arm is fixed with a transmission gear disk coaxial with the rotating shaft. The two transmission gear disks are driven to reverse each other by the moving rack.

[0025] Preferably, a rotary table coaxial with the reference positioning table is connected to the bottom of the tooling table, and an annular protective frame is installed at the bottom of the rotary table. One side edge of the tooling table is slidably connected to the inner edge of the protective frame, and the tooling table can rotate smoothly through the docking between the tooling table and the inner edge of the protective frame.

[0026] A protruding ring is fixed to one end of the socket, and a concave ring that abuts and fits against the protruding ring is fixed to the middle of the rotating shaft;

[0027] The top of the protective frame has symmetrical notches, through which the horizontally placed blocking arm is horizontally supported.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: This multifunctional valve processing welding device is equipped with a horizontal centering and vertical limiting alignment and shaping mechanism, which enables the valve body and valve plate of the inclined slide gate valve to achieve centering and tightening from the inside out and multi-point fastening from top to bottom. Then, the pressure rod adjusted by the clamping rod drives the spherical positioning block to achieve positioning of the valve body on the upper side of the valve plate at the docking angle. At the same time, the anti-loosening mechanism uses lateral compression of the valve plate to prevent the inclined valve plate from warping on the inclined side of the two valve bodies. In addition, the anti-loosening mechanism can also avoid the valve body of the inclined slide gate valve, ensuring that the valve can be welded without obstruction, thus solving the problems of loosening, displacement and warping of valve splice gaps. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural schematic diagram of the welding device of the present invention;

[0030] Figure 2 This is a first three-dimensional structural diagram of the oblique insertion slide valve of the present invention docked on the tooling table;

[0031] Figure 3 This is a three-dimensional structural diagram of the alignment and shaping mechanism of the present invention docking with the tooling table;

[0032] Figure 4 This is a three-dimensional structural diagram of the alignment and shaping mechanism of the present invention;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the clamping rod for pressing down with the fastening claw of the present invention;

[0034] Figure 6 This is a three-dimensional cross-sectional view of the clamping rod with the fastening claw pressing down according to the present invention;

[0035] Figure 7 This is a schematic diagram of the three-dimensional structure of the clamping rod for lifting the fastening claw of the present invention;

[0036] Figure 8 This is a three-dimensional structural diagram of the clamping claw pressing down according to the present invention;

[0037] Figure 9 This is a three-dimensional structural diagram of the lifting mechanism of the fastening claw in this invention;

[0038] Figure 10 This is a three-dimensional structural diagram of the connection between the anti-loosening mechanism and the tooling table of the present invention;

[0039] Figure 11 This is a three-dimensional exploded view of the connection between the anti-loosening mechanism and the tooling table of the present invention;

[0040] Figure 12 This is a three-dimensional structural diagram of the anti-loosening mechanism of the present invention.

[0041] In the diagram: 1. Tooling table; 101. Reference positioning table; 102. Strong magnet; 103. Convex ring; 104. Slide rail; 2. Rotary table; 201. Protective frame; 3. Turntable; 301. Worm gear; 302. Drive motor; 303. Worm; 4. Upright; 401. Sliding column; 402. Hollow frame; 5. Alignment and shaping mechanism; 501. Clamping rod; 502. Pull plate; 503. Sensing module; 5 04. Motor; 505. Sliding sleeve; 506. Gear plate; 507. Limiting plate; 508. Adjusting ring; 509. Fastening claw; 510. Anti-deviation block; 511. Directional gear; 512. Tension spring; 513. Traction arm; 514. Pressure rod; 6. Anti-loosening mechanism; 601. Rack; 602. Gear groove; 603. Transmission gear plate; 604. Blocking arm; 605. Concave ring; 7. Inclined slide gate valve. Detailed Implementation

[0042] The technical solutions of 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.

[0043] Please see Figures 1-3 and Figure 10 The present invention provides a technical solution: a multifunctional valve processing welding device, including a tooling table 1, a reference positioning table 101 horizontally mounted on the top of the tooling table 1, the reference positioning table 101 being connected to the flange hole at the bottom of the inclined slide gate valve 7 via a positioning pin, a rotating table 2 coaxial with the reference positioning table 101 being connected below the tooling table 1, an annular protective frame 201 being installed at the bottom of the rotating table 2, one side edge of the tooling table 1 being slidably connected to the inner ring edge of the protective frame 201, and the tooling table 1 being able to rotate smoothly through the connection between the tooling table 1 and the inner ring of the protective frame 201.

[0044] In this embodiment, the two oblique valve bodies and valve plates of the oblique slide gate valve 7 are stacked vertically, and the flange hole of the bottom valve body is positioned and connected to the positioning pin of the reference positioning table 101. This gives the oblique slide gate valve 7 a basic positioning effect when assembled on the reference positioning table 101. At the same time, the rotating table 2 drives the tooling table 1 to rotate, allowing the oblique slide gate valve 7 to rotate 360°. This enables the matching plasma arc welding equipment to perform welding processing on the joint of the rotatable oblique slide gate valve 7. In addition, the annular protective frame 201 not only protects the rotating tooling table 1, but also allows the tooling table 1 to slide with the inner edge of the protective frame 201 to ensure that the tooling table 1 has a stable rotation capability.

[0045] Please see Figures 2-4 and Figure 11 A driving component is provided on the side of the tooling table 1 away from the reference positioning table 101. The driving component includes a turntable 3 coaxially embedded in the lower surface of the reference positioning table 101. An eccentric arc-shaped opening is reserved on the surface of the turntable 3, and straight grooves are opened at equal included angles on the surface of the reference positioning table 101.

[0046] A worm gear 301 is fixed at the bottom of the turntable 3, and a drive motor 302 is installed on the bottom wall of the tooling table 1. A worm 303 that meshes with the worm gear 301 is fixed at the output end of the drive motor 302.

[0047] In this embodiment, the drive motor 302 drives the worm 303 to mesh with the worm wheel 301, thereby enabling the worm wheel 301 to drive the turntable 3 to rotate, and the rotating turntable 3 will drive the eccentric arc-shaped opening to rotate in both directions.

[0048] To address the issues of slippage and misalignment of holes caused by the inclined contact between the valve body's beveled side and the valve plate surface, the following technical features are implemented:

[0049] Please see Figure 1 , Figure 3 and Figure 4 The reference positioning platform 101 is equipped with a positioning and shaping mechanism 5 for horizontal centering and vertical limiting of the inclined slide valve 7 components that are assembled together. The positioning and shaping mechanism 5 is used to shape the positioning assembly of the two inclined valve bodies and valve plates. The positioning and shaping mechanism 5 includes a clamping rod 501 that slides in a straight groove. The clamping rods 501 that are far apart from each other are used to support the inner wall surfaces of the valve body and valve plate at multiple points. The clamping rods 501 are moved and adjusted along the straight groove through the eccentric arc-shaped opening on the surface of the turntable 3.

[0050] In this embodiment, the rotating turntable 3 causes the eccentric arc-shaped opening to move and adjust the clamping rod 501 along the straight groove of the reference positioning platform 101. This allows the clamping rods 501, which are distributed at equal angles, to move closer together or further apart. When the clamping rods 501 are further apart, they can provide multi-point support to the inner wall surfaces of the valve body and valve plate, ensuring that the valve body and valve plate have an anti-loosening support force from the inside out when vertically assembled before welding. This allows both valve bodies and valve plates of the oblique insert valve 7 to achieve centering clamping from the inside out during splicing and assembly, thereby ensuring welding quality during welding.

[0051] Please see Figures 3-7 and Figure 10 A vertical rod 4 is fixed in the center of the top wall of the reference positioning platform 101. A sliding column 401 is sleeved on the outside of the vertical rod 4. A hollow frame 402 that penetrates the vertical rod 4 is installed at the top of the sliding column 401.

[0052] A pull plate 502 is hinged between the clamping rod 501 and the sliding column 401. The pull plate 502 drives the clamping rod 501, which is far apart from each other, to move the sliding column 401 upward. A sensing module 503 for detecting the pressure between the clamping rod 501 and the inner wall of the valve body is embedded in the surface of the clamping rod 501. The sensing module 503 adopts a pressure sensor of model LXHW-113.

[0053] In this embodiment, when the turntable 3 pushes the equally angled clamping rods 501 away from the center position of the reference positioning platform 101 through the eccentric arc-shaped opening on the surface, the equally angled clamping rods 501 will move away from each other. As a result, the equally angled clamping rods 501 will drive the sliding column 401 to move upward along the upright rod 4 through the pull plate 502. At the same time, when the equally angled clamping rods 501 move away from each other and press against the inner wall surface of the inclined slide valve 7, the sensing module 503 can detect the pressing force against the inner wall surface of the inclined slide valve 7, ensuring that the clamping rods 501 can complete the anti-loosening clamping operation of the inclined slide valve 7.

[0054] Please see Figures 3-9 The clamp 501 is also equipped with a motor 504. The output end of the motor 504 is connected to a lead screw. The lead screw is threadedly connected to a sliding sleeve 505 that is attached to the surface of the clamp 501. The upper end of the sliding sleeve 505 is provided with a toothed plate 506.

[0055] Limiting plates 507 and adjusting rings 508 are embedded on both sides of the top of the clamping rod 501. The adjusting rings 508 are rotatably connected to the upper end of the limiting plates 507. U-shaped cavities are opened in the middle of both the limiting plates 507 and the adjusting rings 508.

[0056] In this embodiment, when the sensing module 503 detects that the pressing force between the clamping rod 501 and the inner wall of the inclined slide valve 7 reaches a preset value, the matching PLC controller controls the motor 504 to rotate forward to drive the lead screw and the sliding sleeve 505 through threaded transmission. Thus, the lead screw can drive the sliding sleeve 505 to move down along the clamping rod 501 and cause the toothed plate 506 to move down. Conversely, the matching PLC controller controls the motor 504 to rotate in reverse to drive the lead screw to drive the sliding sleeve 505 to move up along the clamping rod 501, thereby causing the toothed plate 506 to move up.

[0057] Please see Figures 3-9 A flip-up fastening claw 509 is provided at the center of the top of the clamping rod 501. The fastening claw 509, which can be flipped down, is used to longitudinally pressurize and clamp the flange on the top of the valve body. Anti-deviation blocks 510 that mate with the U-shaped cavity are integrally formed on both sides of the fastening claw 509. A directional gear 511 is fixed at one end of the anti-deviation block 510. A tension spring 512 for pulling the fastening claw 509 downward is connected inside the clamping rod 501.

[0058] In this embodiment, when the clamping rod 501 does not abut against the inner wall of the inclined slide valve 7, the toothed plate 506 at the upper end of the screw control sleeve 505 is engaged with the directional gear 511, thereby causing the fastening claw 509 to be in an inclined upward state. At this time, the anti-deviation blocks 510 on both sides of the fastening claw 509 are stuck in the U-shaped cavity of the adjusting ring 508, and the anti-deviation blocks 510 drive the adjusting ring 508 to be in an inclined state at the upper end of the limiting plate 507. At the same time, the U-shaped cavity of the limiting plate 507 and the U-shaped cavity of the adjusting ring 508 are in a mutually staggered distribution state.

[0059] When the clamping rod 501 abuts against the inner wall of the inclined slide valve 7 and the sensing module 503 detects that the extrusion pressure has reached the preset value, the lead screw will drive the sliding sleeve 505 and the toothed plate 506 to move down along the clamping rod 501. At this time, the toothed plate 506 will mesh with the directional gear 511 to make the anti-deviation block 510 of the strip structure drive the adjusting ring 508 to rotate. The rotating anti-deviation block 510 will also drive the fastening claw 509 to flip to the horizontal pressing state.

[0060] When the toothed plate 506 and the directional gear 511 disengage, the anti-deviation blocks 510 of the strip structure will deflect to a vertical distribution state. At this time, the U-shaped cavity of the limiting plate 507 and the U-shaped cavity of the adjusting ring 508 are aligned with each other. At the same time, the tension spring 512, which is pulling the fastening claw 509, will pull the anti-deviation blocks 510 on both sides of the fastening claw 509 down into the U-shaped cavity located in the middle of the adjusting ring 508 and the limiting plate 507, and thus be pulled by the tension spring 512. The fastening claw 509 will press down on the top wall of the valve body located on the top of the valve plate, ensuring that the alignment and shaping mechanism 5 has the ability to clamp and press down at multiple points when centering and clamping the spliced ​​oblique insert valve 7. This ensures that the two valve bodies can achieve a longitudinal pressure clamping effect when the valve plate is squeezed by the oblique opening side, preventing the splicing of the valve body and valve plate from becoming loose and warped, and thus avoiding the situation of excessive weld gap when welding the splicing seam of the valve body and valve plate.

[0061] It should be noted that when the motor 504 drives the sliding sleeve 505 to move upward through the lead screw, the sliding sleeve 505 will drive the toothed plate 506 to move upward, and make the toothed plate 506 abut against the directional gear 511. Since the anti-deviation block 510 on one side of the directional gear 511 is simultaneously stuck in the U-shaped cavity between the limit plate 507 and the adjusting ring 508, before the anti-deviation block 510 moves upward and disengages from the limit plate 507, the upward-moving toothed plate 506 will only push the directional gear 511 and the fastening claw 509 to move upward in a straight line, thereby moving the fastening claw 509 upward and disengaging it from the flange on the top of the valve body.

[0062] When the anti-deviation block 510 moves upward and disengages from the limiting plate 507 and moves completely into the U-shaped cavity in the middle of the adjusting ring 508, the toothed plate 506, which continues to move upward, will mesh with the directional gear 511, causing the directional gear 511 to drive the adjusting ring 508 to lift and flip upward, thereby driving the fastening claw 509 to flip upward away from the flange at the top of the valve body. At this time, when the clamping rods 501, which are distributed at equal angles, come together, the oblique insert slide valve 7 can be easily removed from the reference positioning table 101.

[0063] Please see Figure 1 , Figure 3 and Figure 4The top of the upright 4 is movably connected to a traction arm 513, and the top of the hollow frame 402 is hinged to a pressure rod 514 that docks with the traction arm 513. The end of the pressure rod 514 away from the hollow frame 402 is fixed with a spherical positioning block for positioning the flange hole.

[0064] In this embodiment, when the clamping rods 501, which are distributed at equal angles, move away from each other, the clamping rods 501 will pull the sliding column 401 upward through the pull plate 502. At this time, the sliding column 401 will drive the hollow frame 402 at the top to move upward. During the upward movement of the hollow frame 402, the traction arm 513 on the outer side of the top of the upright 4 will push the pressure rod 514 downward around the hinge with the hollow frame 402. The downward pressure rod 514 will drive the spherical positioning block to position and engage with the flange hole at the top of the valve body, preventing the valve body on the upper side of the valve plate from shifting at a small angle. This ensures that when the valve body and valve plate are tightened from the inside out, the valve body on the upper side of the valve plate can be immediately positioned at the docking angle, so that the oblique insert slide valve 7 has the effect of alignment and shaping when spliced.

[0065] Please see Figures 1-3 as well as Figures 10-12 The side of the tooling table 1 is provided with an anti-loosening mechanism 6 that avoids the valve body of the inclined slide gate valve 7. The anti-loosening mechanism 6, which avoids the valve body of the inclined slide gate valve 7, laterally squeezes the valve plate to prevent the inclined valve plate from warping at the inclined sides of the two valve bodies. The anti-loosening mechanism 6 includes a rack 601 inclinedly set on one side of the tooling table 1. A slide rail 104 for sliding guide rack 601 is fixed on one side of the tooling table 1. The tooth surface of rack 601 is located on the opposite sides of the two ends of rack 601. A tooth groove 602 is opened on the lower side of rack 601. A spline tooth that meshes with tooth groove 602 is fixed at the front end of worm gear 303 away from drive motor 302.

[0066] The tooling table 1 has symmetrical insertion holes on both sides near the reference positioning table 101, and a strong magnet 102 is embedded in one end of the insertion hole.

[0067] A rotating shaft is connected to the symmetrical insertion holes on both sides of the tooling table 1. The end of the rotating shaft is magnetically attracted by the strong magnet 102 in the insertion hole, and a blocking arm 604 is fixed at one end of the rotating shaft at a 45° tilt angle. The blocking arms 604, which are parallel to each other, are used to clamp the side edge of the valve plate when rotating around the rotating shaft.

[0068] The connection end between the rotating shaft and the blocking arm 604 is fixed with a transmission gear 603 coaxial with the rotating shaft. The two transmission gears 603 are driven to reverse each other by the moving rack 601.

[0069] In this embodiment, when the drive motor 302 drives the worm gear 303 to rotate and drives the turntable 3 to move the clamping rods 501 with equal included angles away from each other, the worm gear 303 will drive the spline teeth at the end to mesh with the tooth grooves 602 on the lower side of the rack 601, so that the rack 601 moves downward at an inclined angle along the slide rail 104. At this time, the tooth surfaces on both sides of the rack 601 will drive the transmission gear plate 603 to rotate, so that the transmission gear plate 603 can drive the blocking arm 604 on the rotating shaft to flip upward from the horizontal angle. When the two blocking arms 604 rotate and press the two sides of the valve plate in parallel, it can prevent the inclined valve plate from sliding down and lifting at the inclined sides of the two valve bodies, ensuring that the positioning and shaping mechanism 5 has the stability of preventing sliding down and lifting of the inclined insert valve 7.

[0070] It should be noted that when the blocking arm 604 abuts against the side edge of the valve plate, the strong magnet 102 at one end of the socket magnetically attracts the end of the rotating shaft. This not only confines the rotating shaft within the socket but also causes the blocking arm 604 on the rotating shaft to continuously press against the upper inclined surface of the valve plate. The blocking arm 604, which is set at a 45° angle, fits against the two inclined surfaces of the valve plate, preventing the inclined valve plate from shaking during welding. At the same time, the pressing contact method with only the two sides of the valve plate exposes the space located at the upper and lower positions of the valve plate, so that the matching plasma arc welding equipment is not obstructed by too many clamps holding the inclined insert valve 7 during welding. In addition, since the alignment and shaping mechanism 5 is inserted inside the inclined insert valve 7, the welding operation of the welding equipment on the splice gap is not interfered with by external clamps.

[0071] Please see Figure 1 , Figure 2 , Figures 10-12 A protruding ring 103 is fixed at one end of the socket, and a concave ring 605 that abuts and fits against the protruding ring 103 is fixed in the middle of the rotating shaft; the top of the protective frame 201 is symmetrically provided with notches, and the horizontally placed blocking arm 604 is horizontally supported by the notches at the top of the protective frame 201 to prevent the blocking arm 604 from tilting when it is rotated to a horizontal angle.

[0072] In this embodiment, when the worm gear 303 rotates and drives the spline teeth to drive the rack 601 to tilt upward, the tooth surfaces on both sides of the rack 601 will drive the transmission gear disk and the blocking arm 604 on the rotating shaft to flip downward from the vertical angle. When the blocking arm 604 rotates around the rotating shaft from the vertical position to the horizontal position, the concave ring 605 on the rotating shaft will squeeze the protrusion on the surface of the convex ring 103 through the concave opening, thereby causing the end of the rotating shaft to disengage from the strong magnet 102 at the insertion hole end.

[0073] Conversely, when the blocking arm 604 rotates around the rotation axis from a horizontal to a vertical position, the concave ring 605 gradually moves its notch closer to the protrusion on the surface of the convex ring 103. When the two blocking arms 604 are tilted and parallel, the notch on the surface of the concave ring 605 corresponds to the protrusion on the surface of the convex ring 103. At this time, the attraction of the strong magnet 102 to the rotation axis causes the concave ring 605 to engage with the protrusion on the surface of the convex ring 103, thereby enabling the two blocking arms 604 to move a short distance along the axial direction of the rotation axis. This causes the two blocking arms 604 to vibrate and impact the upper inclined surfaces of the two sides of the valve plate, ensuring that the valve plate can release the internal stress generated during splicing and assembly when clamped with the valve body, resulting in better welding quality of the valve. The contents not described in detail in this specification are prior art known to those skilled in the art.

Claims

1. A multifunctional welding device for valve processing, comprising a tooling table (1), wherein a reference positioning platform (101) is horizontally mounted on the top of the tooling table (1), characterized in that: The reference positioning platform (101) is connected to the flange hole at the bottom of the oblique slide gate valve (7) via a positioning pin; The reference positioning platform (101) is provided with a positioning and shaping mechanism (5) for horizontal centering and vertical limiting of the oblique insert gate valve (7) components that abut against each other. The positioning and shaping mechanism (5) is used to shape the positioning assembly of the two oblique valve bodies and valve plates. The alignment and shaping mechanism (5) includes a clamping rod (501) that slides in a straight groove. The clamping rods (501) that are far apart from each other are used to support the inner wall surfaces of the valve body and the valve plate at multiple points. A flip-up fastening claw (509) is provided at the center of the top of the clamping rod (501). The fastening claw (509) that can be flipped down is used to longitudinally press and clamp the flange on the top of the valve body. The tooling table (1) is provided with an anti-loosening mechanism (6) that avoids the valve body of the oblique insertion slide valve (7) on its side. The anti-loosening mechanism (6) that avoids the valve body of the oblique insertion slide valve (7) applies lateral pressure to the valve plate to prevent the tilted valve plate from warping at the oblique opening side of the two valve bodies.

2. The welding device for multifunctional valve processing according to claim 1, characterized in that: The tooling table (1) is provided with a driving component on the side away from the reference positioning table (101). The driving component includes a turntable (3) that is coaxially embedded in the lower surface of the reference positioning table (101). The bottom end of the turntable (3) is fixed with a worm gear (301), and the bottom wall of the tooling table (1) is equipped with a drive motor (302). The output end of the drive motor (302) is fixed with a worm (303) that meshes with the worm gear (301).

3. The welding device for multifunctional valve processing according to claim 2, characterized in that: The surface of the turntable (3) is provided with an eccentric arc-shaped opening, and the surface of the reference positioning platform (101) is provided with straight grooves at equal angles. The clamping rod (501) is moved and adjusted along the straight groove through the eccentric arc-shaped opening on the surface of the turntable (3).

4. The welding device for multifunctional valve processing according to claim 1, characterized in that: A vertical rod (4) is fixed in the center of the top wall of the reference positioning platform (101). A sliding column (401) is sleeved on the outside of the vertical rod (4). A hollow frame (402) that penetrates the vertical rod (4) is installed at the top of the sliding column (401). A pull plate (502) is hinged between the clamp rod (501) and the slide column (401). The pull plate (502) drives the clamp rod (501) which is far apart from each other to move the slide column (401) upward. A sensing module (503) for detecting the pressure between the clamp rod (501) and the inner wall of the valve body is embedded in the surface of the clamp rod (501).

5. The welding device for multifunctional valve processing according to claim 4, characterized in that: The clamp (501) is also equipped with a motor (504), the output end of the motor (504) is connected to a lead screw, the lead screw is threadedly connected to a sliding sleeve (505) that is attached to the surface of the clamp (501), and the upper end of the sliding sleeve (505) is provided with a toothed plate (506). Limiting plates (507) and adjusting rings (508) are embedded on both sides of the top of the clamping rod (501). The adjusting rings (508) are rotatably connected to the upper end of the limiting plate (507). A U-shaped cavity is opened in the middle of both the limiting plate (507) and the adjusting rings (508).

6. The welding device for multifunctional valve processing according to claim 5, characterized in that: The fastening claw (509) has anti-deviation blocks (510) integrally formed on both sides to engage with the U-shaped cavity. One end of the anti-deviation block (510) is fixed with a directional gear (511), and the clamping rod (501) is connected with a tension spring (512) for pulling the fastening claw (509) downward.

7. The welding device for multifunctional valve processing according to claim 4, characterized in that: The top of the upright (4) is movably connected to a traction arm (513), and the top of the hollow frame (402) is hinged to a pressure rod (514) that docks with the traction arm (513). The end of the pressure rod (514) away from the hollow frame (402) is fixed with a spherical positioning block for positioning the flange hole.

8. The welding device for multifunctional valve processing according to claim 2, characterized in that: The anti-loosening mechanism (6) includes a rack (601) inclinedly disposed on one side of the tooling table (1). A slide rail (104) for sliding guide rack (601) is fixed on one side of the tooling table (1). The tooth surfaces of the rack (601) are located on opposite sides of the two ends of the rack (601). The rack (601) has a toothed groove (602) on its lower side, and the worm (303) has a spline tooth that meshes with the toothed groove (602) at its front end away from the drive motor (302).

9. The welding device for multifunctional valve processing according to claim 1, characterized in that: The tooling table (1) has symmetrically opened insertion holes on both sides near the reference positioning table (101), and a strong magnet (102) is embedded in one end of the insertion hole. The tooling table (1) has symmetrical insertion holes on both sides connected to a rotating shaft. The end of the rotating shaft is magnetically attracted by a strong magnet (102) in the insertion hole. One end of the rotating shaft is fixed with a blocking arm (604) at a 45° angle. The blocking arms (604) are rotated around the rotating shaft to be parallel to each other and used to clamp the side edge of the valve plate. The connection end between the rotating shaft and the blocking arm (604) is fixed with a transmission gear (603) coaxial with the rotating shaft. The two transmission gears (603) are driven to reverse each other by the moving rack (601).

10. A welding device for multifunctional valve processing according to claim 9, characterized in that: The tooling table (1) is connected to a rotating table (2) coaxial with the reference positioning table (101) below. A ring-shaped protective frame (201) is installed at the bottom of the rotating table (2). One side edge of the tooling table (1) is slidably connected to the inner edge of the protective frame (201). The tooling table (1) rotates smoothly through the docking between the tooling table (1) and the inner ring of the protective frame (201). A protruding ring (103) is fixed at one end of the socket, and a concave ring (605) that abuts and fits against the protruding ring (103) is fixed in the middle of the rotating shaft. The top of the protective frame (201) has symmetrical notches, through which the horizontally placed blocking arm (604) is horizontally supported.

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