Vertical girth welding device for pressure vessel

Abstract

The invention provides a vertical girth welding device for a pressure vessel, belongs to the technical field of welding, and solves the technical problems that the stacking of a plurality of pressure vessel parts needs to be completed manually, the use effects of automatic feeding and stacking cannot be realized, and the overall welding efficiency is influenced. A vertical girth welding device for pressure containers comprises a vertical welding cabinet, a driving frame fixed to the vertical welding cabinet and a filling wheel rotationally connected to the driving frame, a plurality of filling cavities are formed in the filling wheel, each filling cavity is filled with the corresponding pressure container, and an anti-disengaging assembly for limiting disengaging of the corresponding pressure container is arranged at a cavity opening of each filling cavity. A containing opening communicating with the outside is formed in the top of each filling cavity, a pushing plate is arranged in each filling cavity, and a pushing assembly for pushing the pressure container to move is arranged in the filling wheel. The device has the advantages that all the pressure containers are sequentially pushed into the welding cavity to be stacked, girth welding is carried out, and the girth welding efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding and relates to a girth welding device, in particular to a vertical girth welding device for a pressure vessel.

[0002] Pressure vessel refers to a closed device that contains gas or liquid and bears a certain pressure. Circumferential weld welding is the welding of various circular and annular welds. The welded weld is a closed circular ring. The weld is an all-position weld mainly with vertical welds. Of course, the welds of the rotatable welds of horizontal pipes are also vertical circumferential welds.

[0003] After searching, it is found that a vertical circumferential seam welding device and welding method for a pressure vessel are disclosed in Chinese patent documents [Application number: 202310469700.4; Publication number: CN 116197583 B]. A vertical circumferential seam welding device and method for a pressure vessel, comprising a support plate, a first rotating motor is installed on the top of the support plate, the top of the first rotating motor is connected to a bottom bracket, a column is connected to one side of the support plate, a track is connected to one side of the column, a plurality of groups of positioning brackets are installed on the track, a welding mechanism is installed on the positioning bracket, a cross plate is connected to the top of the column, a hydraulic telescopic rod is connected to the bottom of the cross plate, a second rotating motor is connected to the lower end of the hydraulic telescopic rod, and a top bracket is connected to the bottom of the second rotating motor. The present invention can support and position multiple pressure vessel components, thereby facilitating the welding of multiple pressure vessel components at the same time.

[0004] Although this patent can support and position multiple pressure vessel components, thereby facilitating the welding of multiple pressure vessel components at the same time, the stacking of multiple pressure vessel components needs to be done manually, and the use effect of automatic loading and stacking cannot be achieved, affecting the overall welding efficiency. Summary of the invention

[0005] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a vertical circumferential seam welding device for pressure vessels. The technical problem to be solved by the invention is: how to push each pressure vessel into the welding cavity in sequence for stacking and perform circumferential seam welding to improve the efficiency of circumferential seam welding.

[0006] The purpose of the present invention can be achieved by the following technical solutions: A vertical circumferential seam welding device for pressure vessels comprises a vertical welding cabinet, a driving frame fixed on the vertical welding cabinet, and a filling wheel rotatably connected to the driving frame, wherein a plurality of filling cavities are provided on the filling wheel, each filling cavity is filled with a pressure vessel, an anti-separation component for limiting the separation of the pressure vessel is provided at the cavity mouth of each filling cavity, and a placement opening connected to the outside is provided at the top of each filling cavity, a pushing plate is provided in each filling cavity, a pushing component for pushing the pressure vessel to move is provided in the filling wheel, and the pushing component is connected to each pushing plate, a welding cavity is provided in the vertical welding cabinet, a feed port connected to the welding cavity is provided on the vertical welding cabinet, the cavity mouth of each filling cavity is connected to the feed port, a mounting plate is provided at the bottom of the welding cavity, a pair of clamping arms are slidably connected to the mounting plate, and the mounting plate is installed. A clamping assembly for controlling the two clamping arms to perform clamping action is arranged in the disk, a pair of limit ring frames 1 are slidably connected to the top of the welding cavity, the opposite surfaces of the two limit ring frames 1 are vertically rotatably connected to multiple adjusting wheels 1, a pair of limit ring frames 2 located above the two limit ring frames 1 are slidably connected in the welding cavity, the opposite surfaces of the two limit ring frames 2 are horizontally rotatably connected to multiple adjusting wheels 2, multiple servo motors are fixed in each of the limit ring frames 1 and the limit ring frames 2, the output shaft of each servo motor is coaxially fixedly connected to the corresponding adjusting wheel 1 and adjusting wheel 2, and a positioning assembly is arranged in the vertical welding cabinet, the positioning assembly is connected to the two limit ring frames 1 and the two limit ring frames 2, and a welding slide groove connecting the welding cavity is horizontally opened on the vertical welding cavity, and a welding head is slidably connected in the welding slide groove.

[0007] The working principle of the present invention is as follows: pressure vessels can be loaded into multiple filling cavities, and during the rotation of the filling wheel, the pushing assembly will push each pressure vessel into the welding cavity in turn for circumferential seam welding, thereby improving the efficiency of circumferential seam welding; the first pressure vessel pushed into the welding cavity will be lifted by the mounting plate, and the two clamping arms on the mounting plate will clamp and fix the first pressure vessel through the clamping assembly, thereby improving the stability of circumferential seam welding; at this time, the first pressure vessel will be lifted and sent between the limiting ring frame one and the limiting ring frame two through the mounting plate, and the limiting ring frame one and the limiting ring frame two will limit and fix the first pressure vessel through the positioning assembly; at this time, the pushing assembly will push the second pressure vessel into the welding cavity, and the mounting plate will lift the second pressure vessel, and the regulating arrangement between the mounting plate and the limiting ring frame one and the limiting ring frame two will be performed. The two pressure vessels are joined together so that they can be butt-jointed. At this time, the welding head is used to weld the gap between the two pressure vessels. During the welding process, the mounting plate, the limiting ring frame 1, and the limiting ring frame 2 are regulated and coordinated to enable the two pressure vessels to rotate synchronously. The welding head further realizes the ability of circumferential seam welding. After the welding is completed, the welded pressure vessel can be lifted so that the bottom of the welded pressure vessel is suspended in the air, which is convenient for loading a new pressure vessel at the bottom again, so as to realize repeated circumferential seam welding, maintain the overall smooth operation of the welding work action, and improve the efficiency of the overall welding work. Alternatively, the welded pressure vessel can be taken out to complete the circumferential seam welding work. Since the welded pressure vessel is lifted, it is convenient for personnel to take out the pressure vessel from the cavity mouth of the welding cavity, thereby reducing the workload of personnel.

[0008] The anti-separation component includes a pair of anti-separation sliding grooves provided at the mouth of each filling cavity, and anti-separation sliding blocks slidably connected in each pair of anti-separation sliding grooves. A return spring is fixed between each pair of anti-separation sliding blocks and the bottom of the corresponding anti-separation sliding grooves, and one end of each pair of anti-separation sliding blocks is limitedly matched with the corresponding pressure vessel.

[0009] By adopting the above structure, the anti-separation slider can be always in the ejected state through the reset spring 1, thereby restricting the pressure container loaded into the filling chamber, so that it will not be thrown out during the overall rotation of the filling wheel, thereby improving the stability during operation.

[0010] The pushing assembly includes a pushing cavity provided in the filling wheel and a pushing disk arranged in the pushing cavity, a pushing annular groove is provided on the pushing disk, a part of the groove section of the pushing annular groove extends and protrudes, and a plurality of pushing blocks are slidably connected to the pushing annular groove, a connecting rod is fixedly connected between each pushing block and the corresponding pushing plate, and the pushing disk is fixedly connected to the driving frame, a transmission bevel gear 1 is rotatably connected in the driving frame, a regulating motor is fixed in the driving frame, a transmission bevel gear 2 is coaxially fixedly connected to the output shaft of the regulating motor, the transmission bevel gear 2 is meshed with the transmission bevel gear 1, and the transmission bevel gear 1 is coaxially fixedly connected to the filling wheel.

[0011] By adopting the above structure, the transmission bevel gear 2 can be driven to rotate by regulating the motor. After the transmission bevel gear 2 rotates, it will drive the transmission bevel gear 1 to rotate, and the transmission bevel gear 1 will drive the filling wheel to rotate as a whole. After the filling wheel rotates, the pushing plate remains stationary due to the fixed connection with the driving frame, and multiple pushing blocks will drive each pushing block to slide on the pushing annular groove as the filling wheel rotates. When one of the pushing blocks slides to the extended raised area of ​​the pushing annular groove, one of the pushing blocks will push the connecting rod, and the connecting rod will synchronously push the pushing plate to move, and the pushing plate will push the corresponding pressure container, so that the corresponding pressure container is pushed into the welding cavity, thereby realizing the action of sequential filling.

[0012] The positioning assembly includes a pair of driving motors 1 fixed in the vertical welding cabinet, a pair of driving bevel gears 1 rotatably connected in the vertical welding cabinet, a pair of driving bevel gears 2 rotatably connected in the vertical welding cabinet, and a pair of driving bevel gears 3 rotatably connected in the vertical welding cabinet. The output ends of the two driving motors 1 are coaxially fixedly connected to the corresponding driving bevel gear 1, and each driving bevel gear 2 is meshed with the corresponding bottom tooth segment of the driving bevel gear 1, and each driving bevel gear 3 is meshed with the corresponding top tooth segment of the driving bevel gear 1. Each driving bevel gear 2 is coaxially fixedly connected with a transmission rod, and the transmission rod is coaxially fixedly connected with a driving bevel gear 4. A pair of bidirectional lead screws 1 are rotatably connected in the vertical welding cabinet, and the threaded sections on both sides of the two bidirectional lead screws 1 are threadedly connected to the corresponding limit ring frame 1. The two bidirectional lead screws 1 are coaxially fixedly connected with the driving bevel gears Wheel five, each driving bevel gear five is meshed with the corresponding driving bevel gear four, each driving bevel gear three is coaxially fixedly connected with a cross rod, each cross rod is slidably connected with a sliding sleeve, each sliding sleeve is rotatably connected with a driving bevel gear six, and a cross hole is opened at the axis center of each driving bevel gear six, and each cross hole is guided and slidably matched with the corresponding cross rod. A pair of two-way lead screws two are rotatably connected in the vertical welding cabinet, and the threaded sections on both sides of the two two-way lead screws two are threadedly connected with the corresponding limit ring frame two, and a pair of sliders are slidably connected in the vertical welding cabinet, and each pair of sliders are rotatably connected with one end of the corresponding two-way lead screw two, and the other ends of the two two-way lead screws two are coaxially fixedly connected with a driving bevel gear seven, and the two driving bevel gears seven are meshed with the corresponding driving bevel gear six, and a regulating component one is provided in the vertical welding cabinet, and the regulating component one is connected to the sliding sleeve.

[0013] By adopting the above structure, the driving motor 1 can drive the driving bevel gear 1 to rotate. After the driving bevel gear 1 rotates, it will drive the corresponding driving bevel gear 2 to rotate. After the driving bevel gear 2 rotates, the transmission rod will rotate. The transmission rod will further drive the driving bevel gear 4 to rotate. After the driving bevel gear 4 rotates, it will drive the driving bevel gear 5 to rotate. After the driving bevel gear 5 rotates, it will drive the bidirectional lead screw 1 to rotate. The bidirectional lead screw 1 drives two limit ring frames 1 to perform a clamping action, so as to realize that the multiple adjusting wheels 1 rotatably connected on the limit ring frame 1 contact the outer wall of the pressure vessel, and then the servo motor drives the adjusting wheel 1 to rotate. While ensuring the limiting state of the limit ring frame to the pressure vessel, the lifting action of the pressure vessel can also be realized, and after the driving bevel gear 1 rotates, it will drive the corresponding driving bevel gear 3 to rotate. After the driving bevel gear 3 rotates, it will drive the cross rod to rotate. After the cross rod rotates, it will drive the driving bevel gear 6 to rotate. The driving bevel gear 6 then drives the driving bevel gear 7 to rotate, and then the bidirectional lead screw 2 is driven to rotate by the driving bevel gear 7, so that the bidirectional lead screw 2 drives the two The limiting ring frame 2 performs a clamping action, so that the multiple regulating wheels 2 can contact the outer wall of the pressure vessel, and through the bevel gear transmission, the two-way lead screw 1 and the two-way lead screw 2 rotate in the opposite direction, so that when the limiting ring frame 2 performs a clamping action, the limiting ring frame 1 will be unfolded, and when the limiting ring frame 1 performs a clamping action, the limiting ring frame 2 will be unfolded. The two limiting ring frames 1 mainly work to pre-fix the pressure vessel, and push the pressure vessel to be lifted by the vertically rotating regulating wheel 1, so as to adjust the suspended height of the pressure vessel, facilitate the docking of the two pressure vessels, and also lift the welded pressure vessel. After the docking is completed, the two limiting ring frames 2 can be controlled to clamp the pressure vessel, and the multiple horizontally rotating regulating wheels 2 contact the pressure vessel to form a fixing effect. At the same time, the pressure vessel is driven to rotate as a whole through the rotation of the multiple regulating wheels 2, and the synchronous rotation is achieved by the rotation of the mounting plate, and the circumferential seam welding is completed in cooperation with the welding head. In addition, during the welding process, the two limiting ring frames 2 are driven to change their height through the regulating component 1, so as to achieve the ability to adjust the gap between the two pressure vessels during the welding process, thereby improving the welding effect.

[0014] The regulating component 1 includes a pair of driving screws 1 rotatably connected in the vertical welding cabinet, and a connecting block threadedly connected to each driving screw 1, each of the connecting blocks is fixedly connected to the corresponding sliding sleeve, and a pair of driving motors 2 are fixed in the vertical welding cabinet, and the output shaft of each driving motor 2 is coaxially fixedly connected to the corresponding driving screw 1.

[0015] By adopting the above structure, the driving motor 2 can be used to drive the driving screw 1 to rotate. After the driving screw 1 rotates, it will drive the corresponding connecting block to move. During the movement of the connecting block, it will drive the sliding sleeve to move up and down, thereby realizing the adjustment of the height of the bidirectional screw 2, and further realizing the height adjustment of the two limit ring frames 2.

[0016] The clamping assembly includes a pair of guide slots provided on the mounting plate, guide sliders are slidably connected in the two guide slots, each of the guide sliders is fixedly connected to the corresponding clamping arm, a guide rod penetrating the guide sliders is fixed in the two guide slots, two return springs are fixedly connected between each guide slider and the slot wall of the corresponding guide slot, a driving block is fixedly connected to the bottom of each guide slider, a winding wheel is rotatably connected in the mounting plate, a pair of pull ropes are fixedly connected to the winding wheel, one end of each pull rope is fixedly connected to the corresponding driving block, a driving motor three is fixed in the mounting plate, and the output shaft of the driving motor three is coaxially fixedly connected to the winding wheel.

[0017] By adopting the above structure, the winding wheel can be driven to rotate by driving motor 3, and the winding wheel then winds up the two pull ropes, so that the two pull ropes further pull the two driving blocks to move relative to each other. During the relative movement of the two driving blocks, the corresponding clamping arms will be further driven to perform clamping action.

[0018] A sliding block is slidably connected in the vertical welding cabinet, a rack is fixed on the sliding block, the sliding block is fixedly connected to the welding head, a driving motor four is fixed in the vertical welding cabinet, an output shaft of the driving motor four is coaxially fixedly connected to a driving gear, and the driving gear is meshed with the rack.

[0019] By adopting the above structure, the driving motor 4 can be used to drive the driving gear to rotate. After the driving gear rotates, it will engage with the rack to drive the sliding block to move. During the movement of the sliding block, the welding head will be driven to move. In this way, during the welding process of the welding head, the distance between the welding head and the welding point can be adjusted to improve the welding effect.

[0020] A lifting frame is slidably connected in the vertical welding cabinet, and the lifting frame is rotatably connected to the mounting plate. A driving screw 2 is rotatably connected in the vertical welding cabinet, and the driving screw 2 is threadedly connected to the lifting frame. A driving motor 5 is fixed in the lifting frame, and the output shaft of the driving motor 5 is coaxially fixedly connected to the mounting plate. A driving motor 6 is fixed in the vertical welding cabinet, and the output shaft of the driving motor 6 is coaxially fixedly connected to the driving screw 2.

[0021] By adopting the above structure, the driving motor 6 can drive the driving screw 2 to rotate. After the driving screw 2 rotates, it will drive the lifting frame to perform a lifting action, thereby realizing the action of the lifting frame driving the pressure vessel to lift, and the driving motor 5 drives the mounting plate to rotate, thereby cooperating with the limiting ring frame 2 to synchronously rotate the two pressure vessels that need to be welded, thereby realizing the circumferential seam welding capability.

[0022] Compared with the prior art, the vertical circumferential seam welding device for pressure vessels has the following advantages: 1. By loading pressure vessels into multiple filling cavities, during the rotation of the filling wheel, the pushing assembly will push each pressure vessel into the welding cavity in turn for circumferential welding, thereby improving the efficiency of circumferential welding.

[0023] 2. After welding is completed, the welded pressure vessel can be lifted so that the bottom of the welded pressure vessel is suspended, which is convenient for loading a new pressure vessel at the bottom again, realizing repeated circumferential welding and maintaining the overall smooth operation of the welding work.

[0024] 3. The anti-detachment slider is always in the ejected state through the reset spring, which restricts the pressure container loaded into the filling chamber, so that it will not be thrown out during the overall rotation of the filling wheel, thereby improving the stability during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a schematic diagram of the structure inside the filling cavity in the present invention.

[0027] Figure 3 It is a structural diagram of the push component in the present invention.

[0028] Figure 4 It is a schematic diagram of the structure inside the filling wheel of the present invention.

[0029] Figure 5 It is a structural schematic diagram of the positioning component in the present invention.

[0030] Figure 6 It is a schematic diagram of the top view of the interior of the neutral welding cabinet of the present invention.

[0031] Figure 7 It is a schematic diagram of the overall structure inside the neutral welding cabinet of the present invention.

[0032] Figure 8 It is a schematic diagram of the structure inside the installation disk of the present invention.

[0033] In the figure, 1, vertical welding cabinet; 2, driving frame; 3, filling wheel; 4, filling chamber; 5, pressure vessel; 6, placement opening; 7, pushing plate; 8, welding chamber; 9, feeding port; 10, mounting plate; 11, clamping arm; 12, limiting ring frame 1; 13, adjusting wheel 1; 14, limiting ring frame 2; 15, adjusting wheel 2; 16, welding chute; 17, welding head; 18, anti-separation chute; 19, anti-separation slider; 20, reset spring 1; 21, pushing chamber; 22, pushing plate; 23, pushing annular chute; 24, pushing block; 25, connecting rod; 26, transmission bevel gear 1; 27, regulating motor; 28, transmission bevel gear 2; 29, driving motor 1; 30, driving bevel gear 1; 31, driving bevel gear 2; 32, Driving bevel gear three; 33, transmission rod; 34, driving bevel gear four; 35, two-way screw one; 36, driving bevel gear five; 37, cross rod; 38, sliding sleeve; 39, driving bevel gear six; 40, cross hole; 41, two-way screw two; 42, slider; 43, driving bevel gear seven; 44, driving screw one; 45, connecting block; 46, driving motor two; 47, guide slide; 48, guide slider; 49, guide rod; 50, reset spring two; 51, driving block; 52, winding wheel; 53, pull rope; 54, driving motor three; 55, sliding block; 56, rack; 57, driving motor four; 58, driving gear; 59, lifting frame; 60, driving screw two; 61, driving motor five; 62, driving motor six. DETAILED DESCRIPTION

[0034] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0035] like Figure 1-Figure 8As shown, a vertical circumferential seam welding device for pressure vessels comprises a vertical welding cabinet 1, a driving frame 2 fixed on the vertical welding cabinet 1, and a filling wheel 3 rotatably connected to the driving frame 2, a plurality of filling cavities 4 are provided on the filling wheel 3, each of which is filled with a pressure vessel 5, an anti-separation component for limiting the separation of the pressure vessel 5 is provided at the cavity mouth of each filling cavity 4, and a placement opening 6 connected to the outside is provided at the top of each filling cavity 4, a pushing plate 7 is provided in each filling cavity 4, a pushing component for pushing the pressure vessel 5 to move is provided in the filling wheel 3, and the pushing component is connected to each pushing plate 7, a welding cavity 8 is provided in the vertical welding cabinet 1, a feeding port 9 connected to the welding cavity 8 is provided on the vertical welding cabinet 1, and the cavity mouth of each filling cavity 4 is connected to the feeding port 9, a mounting plate 10 is provided at the bottom of the welding cavity 8, a pair of clamping arms 11 are slidably connected to the mounting plate 10, and a pair of clamping arms 11 are provided in the mounting plate 10. A clamping assembly is provided for controlling the two clamping arms 11 to perform clamping actions, a pair of limiting ring frames 12 are slidably connected to the top of the welding cavity 8, and the opposite surfaces of the two limiting ring frames 12 are vertically rotatably connected to multiple adjusting wheels 13, a pair of limiting ring frames 14 located above the two limiting ring frames 12 are slidably connected in the welding cavity 8, and the opposite surfaces of the two limiting ring frames 14 are horizontally rotatably connected to multiple adjusting wheels 2 15, and multiple servo motors are fixed in each limiting ring frame 12 and the limiting ring frame 2 14, and the output shaft of each servo motor is coaxially fixedly connected to the corresponding adjusting wheel 13 and adjusting wheel 2 15, and a positioning assembly is provided in the vertical welding cabinet 1, and the positioning assembly is connected to the two limiting ring frames 12 and the two limiting ring frames 14, and a welding slide 16 connecting the welding cavity 8 is horizontally opened on the vertical welding cavity 8, and a welding head 17 is slidably connected in the welding slide 16.

[0036] The pressure vessels 5 can be loaded into multiple filling cavities. During the rotation of the filling wheel 3, the pushing assembly will push each pressure vessel 5 into the welding cavity 8 in sequence for circumferential seam welding, thereby improving the efficiency of circumferential seam welding. The first pressure vessel 5 pushed into the welding cavity 8 will be lifted by the mounting plate 10. The two clamping arms 11 on the mounting plate 10 will clamp and fix the first pressure vessel 5 through the clamping assembly, thereby improving the stability of the circumferential seam welding. At this time, the first pressure vessel 5 is lifted and sent between the limiting ring frame 1 12 and the limiting ring frame 2 14 through the mounting plate 10. The limiting ring frame 1 12 and the limiting ring frame 2 14 limit and fix the first pressure vessel 5 through the positioning assembly. At this time, the pushing assembly pushes the second pressure vessel 5 into the welding cavity 8, and the mounting plate 10 lifts the second pressure vessel 5. Through the mounting plate 10 and the limiting ring frame 1 12 and the limiting ring frame 2 14, the pressure vessel 5 is fixed to a certain position. The two pressure vessels 5 are butted together by regulation and coordination. At this time, the butted gap of the two pressure vessels 5 is welded by the welding head 17. During the welding process, the mounting plate 10 and the limiting ring frame 1 12 and the limiting ring frame 2 14 are regulated and coordinated to enable the two pressure vessels 5 to rotate synchronously. The welding head 17 further realizes the ability of circumferential seam welding. After the welding is completed, the welded pressure vessel 5 can be lifted so that the bottom of the welded pressure vessel 5 is suspended, which is convenient for loading a new pressure vessel 5 at the bottom again, and repeated circumferential seam welding is realized, maintaining the overall smooth operation of the welding work action, and improving the efficiency of the overall welding work, or the welded pressure vessel 5 is taken out to complete the circumferential seam welding work. Since the welded pressure vessel 5 is lifted, it is convenient for personnel to take out the pressure vessel 5 from the cavity mouth of the welding cavity 8, thereby reducing the workload of personnel.

[0037] The anti-separation component includes a pair of anti-separation grooves 18 opened at the cavity mouth of each filling cavity 4, and an anti-separation slider 19 slidably connected in each pair of anti-separation grooves 18. A return spring 20 is fixed between each pair of anti-separation sliders 19 and the bottom of the corresponding anti-separation groove 18, and one end of each pair of anti-separation sliders 19 is limitedly matched with the corresponding pressure vessel 5.

[0038] With the above structure, the anti-detachment slider 19 can be always in the ejected state through the reset spring 20, so as to restrict the pressure container 5 loaded into the filling chamber 4, so that it will not be thrown out during the overall rotation of the filling wheel 3, thereby improving the stability during operation.

[0039] The pushing assembly includes a pushing cavity 21 opened in the filling wheel 3, a pushing disk 22 arranged in the pushing cavity 21, a pushing annular groove 23 is opened on the pushing disk 22, a part of the groove section of the pushing annular groove 23 extends and protrudes, and a plurality of pushing blocks 24 are slidably connected to the pushing annular groove 23, a connecting rod 25 is fixedly connected between each pushing block 24 and the corresponding pushing plate 7, and the pushing disk 22 is fixedly connected to the driving frame 2, a transmission bevel gear 1 26 is rotatably connected in the driving frame 2, a regulating motor 27 is fixed in the driving frame 2, and a transmission bevel gear 2 28 is coaxially fixedly connected to the output shaft of the regulating motor 27, the transmission bevel gear 2 28 is meshed with the transmission bevel gear 1 26, and the transmission bevel gear 1 26 is coaxially fixedly connected to the filling wheel 3.

[0040] By adopting the above structure, the transmission bevel gear 28 can be driven to rotate by regulating the motor 27. After the transmission bevel gear 28 rotates, it will drive the transmission bevel gear 1 26 to rotate, and the transmission bevel gear 1 26 will drive the filling wheel 3 to rotate as a whole. After the filling wheel 3 rotates, the push plate 22 is fixedly connected to the driving frame 2, so that the push plate 22 remains stationary, and the multiple push blocks 24 will drive each push block 24 to slide on the push annular groove 23 as the filling wheel 3 rotates. When one of the push blocks 24 slides to the extended protruding area of ​​the push annular groove 23, one of the push blocks 24 will push the connecting rod 25, and the connecting rod 25 will synchronously push the push plate 7 to move, and the push plate 7 will push the corresponding pressure container 5, so that the corresponding pressure container 5 is pushed into the welding cavity 8, thereby realizing the action of sequential filling.

[0041] The positioning assembly includes a pair of drive motors 29 fixed in the vertical welding cabinet 1, a pair of drive bevel gears 30 rotatably connected in the vertical welding cabinet 1, a pair of drive bevel gears 2 31 rotatably connected in the vertical welding cabinet 1, and a pair of drive bevel gears 3 32 rotatably connected in the vertical welding cabinet 1. The output ends of the two drive motors 29 are coaxially fixedly connected to the corresponding drive bevel gears 30, and each drive bevel gear 2 31 is meshed with the corresponding bottom tooth segment of the drive bevel gear 30, and each drive bevel gear 3 32 is meshed with the corresponding top tooth segment of the drive bevel gear 30. A transmission rod 33 is coaxially fixedly connected to each drive bevel gear 2 31, and a drive bevel gear 4 34 is coaxially fixedly connected to the transmission rod 33. A pair of bidirectional lead screws 35 are rotatably connected in the vertical welding cabinet 1, and the threaded sections on both sides of the two bidirectional lead screws 35 are threadedly connected to the corresponding limit ring frame 12. The two bidirectional lead screws 35 are coaxially fixedly connected to the drive bevel gears 5 36. The driving bevel gears 5 36 are meshed with the corresponding driving bevel gears 4 34, each driving bevel gear 3 32 is coaxially fixedly connected with a cross rod 37, each cross rod 37 is slidably connected with a sliding sleeve 38, each sliding sleeve 38 is rotatably connected with a driving bevel gear 6 39, and a cross hole 40 is opened at the axis of each driving bevel gear 6 39, and each cross hole 40 is guided and slidably matched with the corresponding cross rod 37. A pair of bidirectional lead screws 2 41 are rotatably connected in the vertical welding cabinet 1, and two bidirectional lead screws 41 are rotatably connected. The threaded sections on both sides of the lever 41 are threadedly connected to the corresponding limit ring frame 14, and a pair of sliders 42 are slidably connected in the vertical welding cabinet 1. Each pair of sliders 42 is rotationally connected to one end of the corresponding bidirectional lead screw 41, and the other ends of the two bidirectional lead screws 41 are coaxially fixedly connected to a driving bevel gear 7 43. The two driving bevel gears 7 43 are meshed with the corresponding driving bevel gear 6 39, and a regulating component 1 is provided in the vertical welding cabinet 1, and the regulating component 1 is connected to the sliding sleeve 38.

[0042] By adopting the above structure, the driving motor 29 can be used to drive the driving bevel gear 1 30 to rotate. When the driving bevel gear 1 30 rotates, it will drive the corresponding driving bevel gear 2 31 to rotate. When the driving bevel gear 2 31 rotates, the transmission rod 33 will rotate. The transmission rod 33 will further drive the driving bevel gear 4 34 to rotate. When the driving bevel gear 4 34 rotates, it will drive the driving bevel gear 5 36 to rotate. When the driving bevel gear 5 36 rotates, it will drive the bidirectional lead screw 1 35 to rotate. The bidirectional lead screw 1 35 drives the two limit ring frames 12 to clamp, so as to realize multiple adjustment of the rotation connection on the limit ring frame 12. The section wheel 13 contacts the outer wall of the pressure vessel 5, and then the regulating wheel 13 is driven to rotate by the servo motor, and while ensuring the limiting state of the limit ring frame 12 on the pressure vessel 5, the lifting action of the pressure vessel 5 can also be realized, and the driving bevel gear 1 30 will drive the corresponding driving bevel gear 3 32 to rotate after the driving bevel gear 3 32 rotates, and the cross rod 37 will drive the cross rod 37 to rotate after the cross rod 37 rotates, and the driving bevel gear 6 39 will drive the driving bevel gear 7 43 to rotate, and then the driving bevel gear 7 43 drives the bidirectional lead screw 2 41 to rotate. The two-way lead screw 1 41 rotates, so that the two-way lead screw 1 41 drives the two limit ring frames 14 to perform a clamping action, so that the multiple regulating wheels 2 can contact the outer wall of the pressure vessel 5, and through the bevel gear transmission, the two-way lead screw 1 35 and the two-way lead screw 1 41 rotate in the opposite direction, so that when the limit ring frame 14 performs a clamping action, the limit ring frame 1 12 will be unfolded, and when the limit ring frame 12 performs a clamping action, the limit ring frame 1 14 will be unfolded. The main work of the two limit ring frames 12 is to pre-fix the pressure vessel 5, and to push the pressure vessel 5 to be lifted by the vertically rotating regulating wheel 1, so as to adjust the suspended height of the pressure vessel 5, which is convenient for the two The two pressure vessels 5 can be docked and the welded pressure vessel 5 can be lifted. After the docking is completed, the two limit ring frames 14 can be controlled to clamp the pressure vessel 5. Multiple laterally rotating control wheels 2 can contact the pressure vessel 5 to form a fixing effect. At the same time, the rotation of multiple control wheels 2 can drive the pressure vessel 5 to rotate as a whole, and cooperate with the rotation of the mounting plate 10 to achieve synchronous rotation, and cooperate with the welding head 17 to complete the annular seam welding. In addition, during the welding process, the two limit ring frames 14 can be driven to change their height through the control component 1, so as to achieve the ability to adjust the gap between the two pressure vessels 5 during the welding process, thereby improving the welding effect.

[0043] The regulating component 1 includes a pair of driving screws 1 44 rotatably connected in the vertical welding cabinet 1, and a connecting block 45 threadedly connected to each driving screw 1 44, each connecting block 45 is fixedly connected to the corresponding sliding sleeve 38, and a pair of driving motors 2 46 are fixed in the vertical welding cabinet 1, and the output shaft of each driving motor 2 46 is coaxially fixedly connected to the corresponding driving screw 1 44.

[0044] By adopting the above structure, the driving motor 2 46 can be used to drive the driving screw 1 44 to rotate. After the driving screw 1 44 rotates, it will drive the corresponding connecting block 45 to move. During the movement of the connecting block 45, it will drive the sliding sleeve 38 to move up and down, thereby realizing the adjustment of the height of the bidirectional screw 2 41, and further realizing the height adjustment of the two limit ring frames 2 14.

[0045] The clamping assembly includes a pair of guide slots 47 provided on the mounting plate 10, guide sliders 48 are slidably connected in the two guide slots 47, each guide slider 48 is fixedly connected to the corresponding clamping arm 11, a guide rod 49 is fixedly provided in the two guide slots 47 and passes through the guide sliders 48, a return spring 2 50 is fixedly connected between each guide slider 48 and the slot wall of the corresponding guide slot 47, a driving block 51 is fixedly connected to the bottom of each guide slider 48, a winding wheel 52 is rotatably connected in the mounting plate 10, a pair of pull ropes 53 are fixedly connected to the winding wheel 52, one end of each pull rope 53 is fixedly connected to the corresponding driving block 51, a driving motor 3 54 is fixed in the mounting plate 10, and the output shaft of the driving motor 3 54 is coaxially fixedly connected to the winding wheel 52.

[0046] By adopting the above structure, the winding wheel 52 can be driven to rotate by driving the third motor 54, and the winding wheel 52 then winds up the two pull ropes 53, so that the two pull ropes 53 further pull the two driving blocks 51 to move relative to each other. During the relative movement of the two driving blocks 51, the corresponding clamping arms 11 will be further driven to perform a clamping action.

[0047] A sliding block 55 is slidably connected in the vertical welding cabinet 1, a rack 56 is fixed on the sliding block 55, the sliding block 55 is fixedly connected to the welding head 17, a driving motor 4 57 is fixed in the vertical welding cabinet 1, and the output shaft of the driving motor 4 57 is coaxially fixedly connected to a driving gear 58, and the driving gear 58 is meshed with the rack 56.

[0048] By adopting the above structure, the driving motor 57 can be used to drive the driving gear 58 to rotate. After the driving gear 58 rotates, it will engage with the rack 56 to drive the sliding block 55 to move. During the movement, the sliding block 55 will drive the welding head 17 to move. In this way, during the welding process of the welding head 17, the distance between the welding head 17 and the welding point can be adjusted to improve the welding effect.

[0049] A lifting frame 59 is slidably connected in the vertical welding cabinet 1, and the lifting frame 59 is rotatably connected to the mounting plate 10. A driving screw 2 60 is rotatably connected in the vertical welding cabinet 1, and the driving screw 2 60 is threadedly connected to the lifting frame 59. A driving motor 5 61 is fixed in the lifting frame 59, and the output shaft of the driving motor 5 61 is coaxially fixedly connected to the mounting plate 10. A driving motor 6 62 is fixed in the vertical welding cabinet 1, and the output shaft of the driving motor 62 is coaxially fixedly connected to the driving screw 2 60.

[0050] By adopting the above structure, the driving motor 62 can be used to drive the driving screw 2 60 to rotate. After the driving screw 2 60 rotates, it will drive the lifting frame 59 to perform a lifting action, thereby realizing the action of the lifting frame 59 driving the pressure vessel 5 to lift, and the driving motor 5 61 drives the mounting plate 10 to rotate, thereby cooperating with the limiting ring frame 2 14 to synchronously rotate the two pressure vessels 5 that need to be welded, thereby realizing the circumferential seam welding capability.

[0051] The working principle of the present invention is as follows: by loading pressure vessels 5 into a plurality of filling chambers, the transmission bevel gear 2 28 is driven to rotate by regulating the motor 27. After the transmission bevel gear 28 rotates, the transmission bevel gear 1 26 is driven to rotate. The transmission bevel gear 1 26 then drives the filling wheel 3 to rotate as a whole. After the filling wheel 3 rotates, the push plate 22 is fixedly connected to the driving frame 2, so that the push plate 22 remains stationary, and a plurality of push blocks 24 are driven to slide on the push annular groove 23 as the filling wheel 3 rotates. When one of the push blocks 24 slides to the extended raised area of ​​the push annular groove 23, one of the push blocks 24 will push the connecting rod 25, and the connecting rod 25 will synchronously push the push plate 7 is moved, and the pushing plate 7 pushes the corresponding pressure container 5, so that the corresponding pressure container 5 is pushed into the welding cavity 8. The first pressure container 5 pushed into the welding cavity 8 will be lifted by the mounting plate 10, and the winding wheel 52 is driven to rotate by the driving motor three 54, and the winding wheel 52 then reels two pull ropes 53, so that the two pull ropes 53 further pull the two driving blocks 51 to move relative to each other. During the relative movement of the two driving blocks 51, the corresponding clamping arms 11 will be further driven to clamp, so as to realize the fixing of the pressure container 5 by the mounting plate 10, and at this time, the driving motor six 62 drives the driving screw two 60 to rotate, and after the driving screw two 60 rotates, it will drive the lifting frame 59 to perform a lifting action, so as to realize The lifting frame 59 drives the pressure vessel 5 to lift. When the pressure vessel 5 is lifted to the limit ring frame 12, the driving motor 129 drives the driving bevel gear 130 to rotate. After the driving bevel gear 130 rotates, it drives the corresponding driving bevel gear 231 to rotate. After the driving bevel gear 231 rotates, the transmission rod 33 rotates. The transmission rod 33 further drives the driving bevel gear 434 to rotate. After the driving bevel gear 434 rotates, it drives the driving bevel gear 536 to rotate. After the driving bevel gear 536 rotates, it drives the bidirectional lead screw 135 to rotate. The bidirectional lead screw 135 drives the two limit ring frames 12 to clamp, so as to realize the multiple adjusting wheels 11 connected to the limit ring frame 12. 3 contacts the outer wall of the pressure vessel 5, and then drives the adjusting wheel 13 to rotate through the servo motor, and then ensures that the limiting ring frame 12 is in the limiting state of the pressure vessel 5, while also realizing the lifting action of the pressure vessel 5, at this time, pushes the second pressure vessel 5 into the welding chamber 8, and the mounting plate 10 lifts the second pressure vessel 5, and then drives the driving bevel gear 1 30 to rotate in the opposite direction through the driving motor 1 29, and after the driving bevel gear 1 30 rotates, it will drive the corresponding driving bevel gear 3 32 to rotate, and after the driving bevel gear 3 32 rotates, it will drive the cross rod 37 to rotate, and after the cross rod 37 rotates, it will drive the driving bevel gear 6 39 to rotate, and the driving bevel gear 6 39 then drives the driving bevel gear 7 43 to rotate,Then, the bidirectional lead screw 2 41 is driven to rotate by driving the bevel gear 7 43, so that the bidirectional lead screw 2 41 drives the two limiting ring frames 2 14 to perform a clamping action, so that the multiple regulating wheels 2 can contact the outer wall of the pressure vessel 5. At this time, the butt joints of the two pressure vessels 5 are welded by the welding head 17. During the welding process, the mounting plate 10 is driven to rotate by the driving motor 5 61, so as to cooperate with the limiting ring frame 2 14 to synchronously rotate the two pressure vessels 5 to be welded, so as to realize the circumferential seam welding capability. In addition, during the welding process of the welding head 17, the distance between the welding head 17 and the welding point can be adjusted to improve the welding effect.

[0052] In summary, by loading pressure vessels 5 into multiple filling cavities, during the rotation of the filling wheel 3, the pushing assembly will push each pressure vessel 5 into the welding cavity 8 in turn for circumferential seam welding, thereby improving the efficiency of circumferential seam welding. The first pressure vessel 5 pushed into the welding cavity 8 will be lifted by the mounting plate 10, and the two clamping arms 11 on the mounting plate 10 will clamp and fix the first pressure vessel 5 through the clamping assembly, thereby improving the stability of the circumferential seam welding. At this time, the first pressure vessel 5 is lifted and sent between the limiting ring frame 1 12 and the limiting ring frame 2 14 through the mounting plate 10, and the limiting ring frame 1 12 and the limiting ring frame 2 14 limit and fix the first pressure vessel 5 through the positioning assembly. At this time, the pushing assembly pushes the second pressure vessel 5 into the welding cavity 8, and the mounting plate 10 lifts the second pressure vessel 5, and the mounting plate 10 and the limiting ring frame 1 12 and the limiting ring frame 2 14 are fixed to the position. The two pressure vessels 5 are butted together by the regulation and coordination between them. At this time, the butted gap of the two pressure vessels 5 is welded by the welding head 17. During the welding process, the two pressure vessels 5 are rotated synchronously by the regulation and coordination between the mounting plate 10 and the limiting ring frame 12 and the limiting ring frame 2 14. The welding head 17 further realizes the ability of circumferential seam welding. After the welding is completed, the welded pressure vessel 5 can be lifted so that the bottom of the welded pressure vessel 5 is suspended, which is convenient for loading a new pressure vessel 5 at its bottom again, and repeated circumferential seam welding is realized, maintaining the overall smooth operation of the welding work action, and improving the efficiency of the overall welding work, or taking out the welded pressure vessel 5 to complete the circumferential seam welding work. Since the welded pressure vessel 5 is lifted, it is convenient for personnel to take out the pressure vessel 5 from the cavity mouth of the welding cavity 8, thereby reducing the workload of personnel.

[0053] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A vertical circumferential seam welding device for pressure vessels, comprising a vertical welding cabinet (1), a driving frame (2) fixed on the vertical welding cabinet (1), and a filling wheel (3) rotatably connected to the driving frame (2), characterized in that: The filling wheel (3) is provided with a plurality of filling cavities (4), each of which is filled with a pressure container (5), an anti-separation component for limiting the separation of the pressure container (5) is provided at the cavity opening of each filling cavity (4), and a placement opening (6) for communicating with the outside is provided at the top of each filling cavity (4), a pushing plate (7) is provided in each filling cavity (4), and a pushing component for pushing the pressure container (5) to move is provided in the filling wheel (3), and the pushing component is connected to each pushing plate (7). The vertical welding cabinet (1) is connected with a plate (7), a welding chamber (8) is provided in the vertical welding cabinet (1), a feed port (9) connected to the welding chamber (8) is provided on the vertical welding cabinet (1), the cavity opening of each filling chamber (4) is connected with the feed port (9), a mounting plate (10) is provided at the bottom of the welding chamber (8), a pair of clamping arms (11) are slidably connected to the mounting plate (10), and a clamping assembly for controlling the two clamping arms (11) to perform a clamping action is provided in the mounting plate (10), A pair of limiting ring frames (12) are slidably connected to the top of the welding cavity (8); the opposite surfaces of the two limiting ring frames (12) are vertically rotatably connected to a plurality of adjusting wheels (13); a pair of limiting ring frames (14) located above the two limiting ring frames (12) are slidably connected in the welding cavity (8); the opposite surfaces of the two limiting ring frames (14) are horizontally rotatably connected to a plurality of adjusting wheels (15); each limiting ring frame (12) is connected to the inner surface of the limiting ring frame (14). A plurality of servo motors are fixedly mounted, and the output shaft of each servo motor is coaxially fixedly connected with the corresponding adjusting wheel 1 (13) and adjusting wheel 2 (15), and a positioning assembly is arranged in the vertical welding cabinet (1), and the positioning assembly is connected with two limiting ring frames 1 (12) and two limiting ring frames 2 (14), and a welding slide groove (16) communicating with the welding chamber (8) is transversely opened on the vertical welding chamber (8), and a welding head (17) is slidably connected in the welding slide groove (16).

2. A vertical circumferential seam welding device for pressure vessels according to claim 1, characterized in that: The anti-separation component comprises a pair of anti-separation sliding grooves (18) provided at the cavity opening of each filling cavity (4), an anti-separation sliding block (19) slidably connected in each pair of anti-separation sliding grooves (18), a return spring (20) being fixed between each pair of the anti-separation sliding blocks (19) and the bottom of the corresponding anti-separation sliding groove (18), and one end of each pair of anti-separation sliding blocks (19) being limitedly matched with the corresponding pressure container (5).

3. A vertical circumferential seam welding device for pressure vessels according to claim 1, characterized in that: The pushing assembly comprises a pushing cavity (21) provided in the filling wheel (3), a pushing disk (22) arranged in the pushing cavity (21), a pushing annular slide groove (23) provided on the pushing disk (22), a part of the groove section of the pushing annular slide groove (23) extending and protruding, and a plurality of pushing blocks (24) are slidably connected to the pushing annular slide groove (23), a connecting rod (25) is fixedly connected between each pushing block (24) and the corresponding pushing plate (7), and the pushing disk (22) is fixedly connected to the driving frame (2), a transmission bevel gear 1 (26) is rotatably connected in the driving frame (2), a regulating motor (27) is fixed in the driving frame (2), and a transmission bevel gear 2 (28) is coaxially fixedly connected to the output shaft of the regulating motor (27), the transmission bevel gear 2 (28) is meshed with the transmission bevel gear 1 (26), and the transmission bevel gear 1 (26) is coaxially fixedly connected to the filling wheel (3).

4. A vertical circumferential seam welding device for pressure vessels according to claim 1, characterized in that: The positioning assembly comprises a pair of drive motors (29) fixed in the vertical welding cabinet (1), a pair of drive bevel gears (30) rotatably connected in the vertical welding cabinet (1), a pair of drive bevel gears (31) rotatably connected in the vertical welding cabinet (1), and a pair of drive bevel gears (32) rotatably connected in the vertical welding cabinet (1), the output ends of the two drive motors (29) are coaxially fixedly connected to the corresponding drive bevel gears (30), and each drive bevel gear (31) is coaxially fixedly connected to the bottom tooth segment of the corresponding drive bevel gear (30). The vertical welding cabinet (1) is provided with a pair of bidirectional lead screws (35) which are rotatably connected to each other. The threaded sections on both sides of the two bidirectional lead screws (35) are threadedly connected to the corresponding limit ring frame (12). The two bidirectional lead screws (35) are coaxially fixedly connected to the drive bevel gears (36). The driving bevel gears 5 (36) are meshed with the corresponding driving bevel gears 4 (34); each driving bevel gear 3 (32) is coaxially fixedly connected with a cross rod (37); each cross rod (37) is slidably connected with a sleeve (38); each sleeve (38) is rotatably connected with a driving bevel gear 6 (39); a cross hole (40) is provided at the axis of each driving bevel gear 6 (39); each cross hole (40) is guided and slidably matched with the corresponding cross rod (37); a pair of bidirectional lead screws 2 (41) are rotatably connected in the vertical welding cabinet (1); two bidirectional lead screws 41 are rotatably connected in the vertical welding cabinet (1); The threaded sections on both sides of the two-way lead screw (41) are threadedly connected to the corresponding limiting ring frame (14); a pair of sliders (42) are slidably connected in the vertical welding cabinet (1); each pair of sliders (42) is rotationally connected to one end of the corresponding two-way lead screw (41); the other ends of the two two-way lead screws (41) are coaxially fixedly connected to a driving bevel gear (43); the two driving bevel gears (43) are meshed with the corresponding driving bevel gear (39); and a regulating component (1) is provided in the vertical welding cabinet (1), and the regulating component (1) is connected to the sliding sleeve (38).

5. A vertical circumferential seam welding device for pressure vessels according to claim 4, characterized in that: The regulating component 1 comprises a pair of driving screws 1 (44) rotatably connected in the vertical welding cabinet (1), and a connecting block (45) threadedly connected to each driving screw 1 (44), each connecting block (45) being fixedly connected to a corresponding sliding sleeve (38), and a pair of driving motors 2 (46) being fixed in the vertical welding cabinet (1), and the output shaft of each driving motor 2 (46) being coaxially fixedly connected to the corresponding driving screw 1 (44).

6. A vertical circumferential seam welding device for pressure vessels according to claim 1, characterized in that: The clamping assembly comprises a pair of guide slots (47) provided on the mounting plate (10), guide sliders (48) slidably connected in the two guide slots (47), each of the guide sliders (48) being fixedly connected to the corresponding clamping arm (11), guide rods (49) penetrating the guide sliders (48) being fixedly connected in the two guide slots (47), a return spring 2 (50) being fixedly connected between each guide slider (48) and the slot wall of the corresponding guide slot (47), a driving block (51) being fixedly connected at the bottom of each guide slider (48), a winding wheel (52) being rotatably connected in the mounting plate (10), a pair of pull ropes (53) being fixedly connected to the winding wheel (52), one end of each pull rope (53) being fixedly connected to the corresponding driving block (51), a driving motor 3 (54) being fixedly connected in the mounting plate (10), and an output shaft of the driving motor 3 (54) being coaxially fixedly connected to the winding wheel (52).

7. A vertical circumferential seam welding device for pressure vessels according to claim 1, characterized in that: A sliding block (55) is slidably connected in the vertical welding cabinet (1), a rack (56) is fixed on the sliding block (55), the sliding block (55) is fixedly connected to the welding head (17), a driving motor (57) is fixed in the vertical welding cabinet (1), the output shaft of the driving motor (57) is coaxially fixedly connected to a driving gear (58), and the driving gear (58) is meshed with the rack (56).

8. A vertical circumferential seam welding device for pressure vessels according to claim 1, characterized in that: A lifting frame (59) is slidably connected in the vertical welding cabinet (1), and the lifting frame (59) is rotatably connected to the mounting plate (10). A second driving screw (60) is rotatably connected in the vertical welding cabinet (1), and the second driving screw (60) is threadedly connected to the lifting frame (59). A fifth driving motor (61) is fixed in the lifting frame (59), and the output shaft of the fifth driving motor (61) is coaxially fixedly connected to the mounting plate (10). A sixth driving motor (62) is fixed in the vertical welding cabinet (1), and the output shaft of the sixth driving motor (62) is coaxially fixedly connected to the second driving screw (60).

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