A welding groove processing device for cryogenic pressure vessels

Abstract

The present invention discloses a welding groove processing device for cryogenic pressure vessels, and the present invention relates to the technical field of welding equipment, including a frame, a groove processing mechanism, and a support mechanism. The groove processing mechanism includes a linear driver and a slider. A hydraulic cylinder is fixedly installed at the side of the outer side of the slider. The telescopic end of the hydraulic cylinder is fixedly installed with a flat plate. A welding main machine is installed in the middle of the top of the flat plate. A welding gun is installed at the bottom of the welding main machine. A conical wheel is rotatably installed at the bottom of the flat plate and close to the welding gun. The support mechanism includes a zigzag plate and a T-shaped frame. A runner is rotatably installed between the zigzag plate and the T-shaped frame. A gearbox is installed at the bent part inside the zigzag plate. A servo motor is installed in the middle of the outer side of the gearbox. A clamping assembly is installed at the outer side of the zigzag plate and close to the gearbox. This welding groove processing device for cryogenic pressure vessels achieves an adjustable effect, the welding tool is convenient to adjust, and it is not easy to shake, being safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and particularly to a welding groove processing device for low-temperature cryogenic pressure vessels. Background Art

[0002] A low-temperature cryogenic pressure vessel is a special pressure vessel used for storing or transporting substances in a liquid or gaseous state at extremely low temperatures. Low-temperature cryogenic pressure vessels are usually made of stainless steel, aluminum alloy or plastic, which can effectively reduce heat conduction and keep the substances in a low-temperature state. When manufacturing a low-temperature cryogenic pressure vessel, welding is an essential step. A welding groove is a groove with a certain geometric shape processed and assembled at the welding part of the welded part. For a pressure vessel, the main function of the welding groove is to ensure the welding quality. It can make the root of the weld penetrate, ensuring that the welded joint of the pressure vessel has sufficient strength and good sealing performance. When welding the connection part between some pipes under high pressure and the container body, a suitable groove can make the weld fully fuse, preventing the occurrence of incomplete penetration and resulting in pressure leakage. Generally, the overall shape of a low-temperature cryogenic pressure vessel is cylindrical.

[0003] Currently, when welding the groove of an existing pressure vessel, it is inconvenient to adjust the position of the welding tool, and the overall object of the low-temperature cryogenic pressure vessel needs to be adjusted. For some large pressure vessel objects, it is not convenient to move, making the overall use of the welding equipment not flexible enough, requiring multiple adjustments, resulting in the welding work not being smooth enough. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A welding groove processing device for low-temperature cryogenic pressure vessels, comprising:

[0005] A frame, on the side of the outer side of the frame, a support frame is fixedly installed, and a strip-shaped hole is opened at the side of the top of the support frame;

[0006] A groove processing mechanism, which is used for welding the groove of the pressure vessel, and the groove processing mechanism is installed on the top of the frame and close to the strip-shaped hole;

[0007] The groove processing mechanism includes a linear drive and a slider, wherein the linear drive is installed on the top of the frame and close to the strip hole, the slider is slidably installed between the strip hole and the top of the frame, a hydraulic cylinder is fixedly installed at the side of the outer side of the slider, a flat plate is fixedly installed at the telescopic end of the hydraulic cylinder, a welding main machine is installed in the middle of the top of the flat plate, a welding gun is installed at the bottom of the welding main machine, and a conical wheel is rollingly installed at the bottom of the flat plate and close to the welding gun. The slider is driven to move by the output end of the linear drive, and the welding main machine is driven to move under the connection between the hydraulic cylinder and the flat plate, so that the welding gun can be driven to move linearly together, so that the position of the welding gun can be adjusted, so that the welding gun moves to the top of the welding groove of the pressure vessel, thereby making the position of the welding gun more accurate, which is convenient for subsequent accurate welding of the groove;

[0008] A supporting mechanism, which is used to support the pressure vessel to be processed and drive the pressure vessel to be processed to rotate, and the supporting mechanism is installed on the top of the frame;

[0009] Wherein, the supporting mechanism comprises a zigzag plate and a T-shaped frame, the zigzag plate is installed at a corresponding position on the top of the frame, the T-shaped frame is fixedly installed at the bottom of the inner side of the frame and close to the zigzag plate, a rotating wheel is rotatably installed between the zigzag plate and the T-shaped frame, an anti-skid ring is installed at the outer cylindrical surface of the rotating wheel, a gearbox is installed at the bending part of the inner side of the zigzag plate, a servo motor is installed in the middle of the outer side of the gearbox, a clamping assembly is installed on the outer side of the zigzag plate and close to the gearbox, a side of the rotating wheel close to the T-shaped frame is fixedly installed with a gradual shifting tooth, the output end of the servo motor is used to rotate, and the rotating wheel is rotated under the transmission of the gearbox, and the pressure vessel is used to press the anti-skid ring so that the anti-skid ring is deformed after being pressed, thereby increasing the friction force, which helps the rotating wheel to drive the pressure vessel to rotate, thereby promoting circumferential welding of the groove of the pressure vessel.

[0010] Preferably, the output end of the linear drive is fixedly mounted on the top of the slider, the hydraulic cylinder passes through the center of the strip hole, there are two conical wheels, and the two conical wheels are symmetrically mounted along the welding gun, and the plate can be driven to move downward and upward by extending and contracting the telescopic end of the hydraulic cylinder, so that the welding host and the welding gun are driven to move up and down, so that the height of the welding gun can be fine-tuned, and the welding gun can be adjusted to a suitable position away from the groove of the pressure vessel to be welded, thereby facilitating welding without misaligning the groove.

[0011] By making use of the bottom of the conical surface of the conical wheel to fit with the top of the outer cylindrical surface of the pressure vessel, the conical wheel can be rolled, so that the flat plate can be supported. The rolling of the conical wheel and rolling friction are used to reduce friction, so that the structures can run smoothly, thereby making the welding host and the welding gun more stable and less prone to shaking.

[0012] By symmetrically installing two conical wheels along the welding gun, the two symmetrical conical wheels rotate together, and the conical wheels roll with the outer cylindrical surface of the pressure vessel to be processed, so that the pressure vessel to be processed is subjected to balanced force and is not prone to deviation.

[0013] Preferably, there are two zigzag plates, and the two zigzag plates are symmetrically installed along the central axis in the middle of the frame, and the output shaft of the servo motor and the rotating wheel are installed through a gearbox transmission.

[0014] Preferably, the anti-skid ring is evenly installed on the outer circumferential surface of the rotating wheel, and the material of the anti-skid ring is rubber, and the gradual shifting teeth are evenly installed on a side of the rotating wheel close to the T-shaped frame.

[0015] Preferably, the clamping assembly includes a cylinder and a U-shaped slide, the cylinder is installed on the inner side of the zigzag plate and close to the gearbox, the U-shaped slide is slidably installed at the edge of the outer side of the zigzag plate, the telescopic end of the cylinder is fixedly installed between the bottom of the U-shaped slide, a tripod is fixedly installed on the top of the U-shaped slide, and a rotating disk is rotatably installed on the top of the tripod, and the pressure vessel is supported by the symmetrical wheels on both sides, and the telescopic end of the cylinder is contracted to apply a pulling force to the U-shaped slide, and guided down at the edge of the outer side of the zigzag plate, and the rotating disk is driven to move by the support of the tripod, and the symmetrical rotating disks on both sides move toward each other, so that a clamping force can be applied to the end of the pressure vessel, and the rotating disk can be rotated, so that the structures can run smoothly, so that the pressure vessel is not easily stuck when rotating.

[0016] Preferably, there are two U-shaped slides, and the two U-shaped slides are symmetrically installed along the zigzag plate, and the tripod is installed directly above the zigzag plate.

[0017] Preferably, an auxiliary mechanism is installed in the middle of the bottom of the inner cavity of the frame, and the auxiliary mechanism includes a bottom plate, which is fixedly installed at the bottom of the inner cavity of the frame and close to the rotating wheel by screws, and Y-shaped support columns are fixedly installed at corresponding positions on the top of the bottom plate, and an auxiliary wheel is rotatably installed on the top of the Y-shaped support column, and a reciprocating pretreatment component is installed on the outer side of the Y-shaped support column and close to the gradually changing toggle tooth. With the support of the Y-shaped support column, the auxiliary wheel is located directly below the pressure vessel to be processed, and the top of the outer cylindrical surface of the auxiliary wheel is fitted with the bottom of the outside of the pressure vessel, so that when the pressure vessel rolls, the auxiliary wheel can roll, thereby providing rolling support for the pressure vessel.

[0018] Preferably, the Y-shaped support column is installed vertically, and the position of the auxiliary wheel corresponds to the position of the rotating wheel.

[0019] Preferably, the reciprocating pretreatment assembly comprises a bending rod, the bottom of the bending rod is fixedly installed at the middle of the outer side of the Y-shaped supporting column, the top of the bending rod is slidably installed with an arc supporting plate, and a force-bearing push rod is fixedly installed at the edge of the bottom of the arc supporting plate, and a sleeve is rotatably installed at the outer side of the force-bearing push rod and one end of the gradually changing toggle tooth is rolled with a sleeve, and a return spring is fixedly installed between the outer side of the arc supporting plate and the inner side of the bending rod, and a wire brush is fixedly installed at the arc concave surface of the top of the arc supporting plate, and a wiping rod is fixedly installed on the top of the arc supporting plate. When the rotating wheel rotates, the gradually changing toggle tooth can be driven to rotate in a circle, and the gradually changing toggle tooth is contacted with the sleeve, so that the sleeve is pushed by the rotating gradually changing toggle tooth, and under the connection of the force-bearing push rod, the pushing force is applied to the arc supporting plate, and the arc supporting plate drives the wire brush and the wiping rod to move in a straight line by guiding the bending rod, and the return spring is compressed;

[0020] As the gradual toggle tooth continues to rotate, the gradual toggle tooth disengages from the sleeve, causing the driving force on the sleeve to disappear, and under the elastic force of the reset spring, the arc-shaped support plate drives the wire brush and the wiping rod to move in the opposite direction for reset. In this way, the dust and debris at the welding groove of the pressure vessel can be cleared by the reciprocating movement of the wire brush and the wiping rod, thereby reducing the influence of debris on welding and improving the welding quality.

[0021] Preferably, there are two bending rods, and the two bending rods are symmetrically installed along the central axis of the arc-shaped support plate, the force-bearing push rod is slidably installed between the position and the outer side of the Y-shaped support column, and the bending rod passes through the middle of the reset spring.

[0022] The present invention provides a low-temperature and deep-cold pressure vessel welding groove processing device. It has the following beneficial effects:

[0023] 1. For this welding groove machining device of cryogenic and deep - cold pressure vessels, the output end of the linear driver drives the slider to move. Under the connection of the hydraulic cylinder and the flat plate, the welding main body is driven to move, which can drive the welding gun to move linearly together, thus adjusting the position of the welding gun so that the welding gun moves to directly above the welding groove of the pressure vessel, making the position of the welding gun more accurate and facilitating subsequent accurate welding of the groove.

[0024] 2. For this welding groove machining device of cryogenic and deep - cold pressure vessels, by extending and contracting the telescopic end of the hydraulic cylinder, the flat plate can be driven to move downward and upward, so that the welding main body and the welding gun are driven to move up and down, thus finely adjusting the height of the welding gun and adjusting the welding gun to a suitable position relative to the groove of the pressure vessel to be welded, which helps in welding the groove.

[0025] 3. For this welding groove machining device of cryogenic and deep - cold pressure vessels, the bottom of the conical surface of the conical wheel is fitted with the top of the outer cylindrical surface of the pressure vessel, causing the conical wheel to roll. In this way, the flat plate can be supported, and due to the rolling of the conical wheel, rolling friction is adopted to reduce the frictional force, making the operation between structures smooth, so that the welding main body and the welding gun are more stable and not prone to shaking.

[0026] 4. For this welding groove machining device of cryogenic and deep - cold pressure vessels, two conical wheels are symmetrically installed along the welding gun, and the two symmetrical conical wheels rotate together. By rolling between the conical wheel and the outer cylindrical surface of the pressure vessel to be machined, the pressure vessel to be machined is evenly stressed and not prone to deviation.

[0027] 5. For this welding groove machining device of cryogenic and deep - cold pressure vessels, the pressure vessel is supported by two symmetrically arranged rotating wheels on both sides. By contracting the telescopic end of the air cylinder, a pulling force can be applied to the U - shaped slide plate. Under the guidance of the outer edge of the zigzag plate and with the support of the tripod, the rotating disc is driven to move. By the opposite movement of the two symmetrically arranged rotating discs on both sides, a clamping force can be applied to the end of the pressure vessel, and since the rotating disc can rotate, the operation between structures is smooth, so that the pressure vessel is not prone to jamming when rotating.

[0028] 6. For this welding groove machining device of cryogenic and deep - cold pressure vessels, the output end of the servo - motor rotates. Under the transmission of the gearbox, the rotating wheel rotates. And due to the pressure vessel pressing on the anti - slip ring, the anti - slip ring deforms under pressure, increasing the frictional force, which helps the rotating wheel in rotation to drive the pressure vessel to rotate, thus facilitating circumferential welding of the groove of the pressure vessel.

[0029] 7. The low-temperature deep-cold pressure vessel welding groove processing device, supported by a Y-shaped support column, enables the auxiliary wheel to be located directly below the pressure vessel to be processed. The top of the outer cylindrical surface of the auxiliary wheel is fitted with the bottom of the outside of the pressure vessel, so that when the pressure vessel rolls, the auxiliary wheel can roll, thereby providing rolling support for the pressure vessel.

[0030] 8. The low-temperature deep-cold pressure vessel welding groove processing device uses a gradual shifting tooth to apply a driving force to the sleeve, so that the arc-shaped support plate can drive the wire brush and the wiping rod to move in a straight line. As the driving force on the sleeve disappears, and under the elastic force of the reset spring, the arc-shaped support plate drives the wire brush and the wiping rod to move in the opposite direction for reset. In this way, the dust and debris at the pressure vessel welding groove can be cleared by the reciprocating movement of the wire brush and the wiping rod, thereby reducing the influence of debris on welding and improving welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the low-temperature and deep-cold pressure vessel welding groove processing device of the present invention;

[0032] Figure 2 It is a bottom view structural schematic diagram of a low-temperature and deep-cold pressure vessel welding groove processing device of the present invention;

[0033] Figure 3 It is a schematic diagram of the connection structure between the groove processing mechanism and the support frame of the present invention;

[0034] Figure 4 It is a schematic diagram of the connection structure between the support mechanism and the frame of the present invention;

[0035] Figure 5 It is a schematic diagram of the overall structure of the support mechanism of the present invention;

[0036] Figure 6 It is a schematic diagram of the overall structure of the clamping assembly of the present invention;

[0037] Figure 7 It is a schematic diagram of the connection structure between the auxiliary mechanism frames of the present invention;

[0038] Figure 8 It is a schematic diagram of the overall structure of the reciprocating pretreatment component of the present invention.

[0039] In the figure: 1, frame; 2, support frame; 3, strip hole; 4, groove processing mechanism; 5, support mechanism; 6, auxiliary mechanism; 41, linear drive; 42, slider; 43, hydraulic cylinder; 44, plate; 45, welding host; 46, welding gun; 47, conical wheel; 51, zigzag plate; 52, T-shaped frame; 53, rotating wheel; 54, anti-skid ring; 55, gearbox; 56, servo motor; 57, clamp Holding assembly; 58, gradual shifting gear; 571, cylinder; 572, U-shaped slide; 573, tripod; 574, rotating disc; 61, bottom plate; 62, Y-shaped support column; 63, auxiliary wheel; 64, reciprocating pretreatment assembly; 641, bending rod; 642, arc-shaped support plate; 643, force push rod; 644, reset spring; 645, wire brush; 646, wiping rod; 647, sleeve. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0041] The first embodiment, as Figures 1 - 3 As shown, the present invention provides a technical solution: a low-temperature and deep-cold pressure vessel welding groove processing device, comprising:

[0042] A frame 1, a support frame 2 is fixedly mounted on the outer side of the frame 1, and a strip hole 3 is opened on the top side of the support frame 2;

[0043] A groove processing mechanism 4, which is used for groove welding of the pressure vessel, and is installed on the top of the frame 1 and close to the strip hole 3;

[0044] Among them, the groove machining mechanism 4 includes a linear driver 41 and a slider 42. The linear driver 41 is installed at the top of the frame 1 and near the strip hole 3. The slider 42 is slidably installed between the strip hole 3 and the top of the frame 1. A hydraulic cylinder 43 is fixedly installed at the side of the outer side of the slider 42. The telescopic end of the hydraulic cylinder 43 is fixedly installed with a flat plate 44. A welding host 45 is installed in the middle of the top of the flat plate 44. A welding gun 46 is installed at the bottom of the welding host 45. A conical wheel 47 is rotatably installed at the bottom of the flat plate 44 and near the welding gun 46. The staff turns on the linear driver 41 to work, drives the slider 42 to move by the output end of the linear driver 41, and under the connection of the hydraulic cylinder 43 and the flat plate 44, drives the welding host 45 to move, and then can drive the welding gun 46 to move linearly together, so as to adjust the position of the welding gun 46, make the welding gun 46 move to directly above the welding groove of the pressure vessel, and thus make the position of the welding gun 46 more accurate;

[0045] The output end of the linear driver 41 is fixedly installed with the top of the slider 42. The hydraulic cylinder 43 passes through the center of the strip hole 3. There are two conical wheels 47, and the two conical wheels 47 are symmetrically installed along the welding gun 46. By extending and contracting the telescopic end of the hydraulic cylinder 43, the flat plate 44 can be driven to move downwards and upwards, so that the welding host 45 and the welding gun 46 are driven to move up and down, and then the height of the welding gun 46 can be finely adjusted to adjust the welding gun 46 to a suitable position from the groove of the pressure vessel to be welded.

[0046] When the pressure vessel to be processed rotates, the bottom of the conical surface of the conical wheel 47 is attached to the top of the outer circumferential surface of the pressure vessel, so that the conical wheel 47 rolls, and then the flat plate 44 can be supported. And by the rolling of the conical wheel 47, rolling friction is adopted to reduce the friction force, make the operation between the structures smooth, and thus make the welding host 45 and the welding gun 46 more stable.

[0047] By symmetrically installing the two conical wheels 47 along the welding gun 46, the two relatively symmetric conical wheels 47 rotate together. By the rolling between the conical wheel 47 and the outer circumferential surface of the pressure vessel to be processed, the pressure vessel to be processed is evenly stressed.

[0048] The second embodiment is as Figures 1 - 6 shown, on the basis of the first embodiment:

[0049] A support mechanism 5, which is used to support the pressure vessel to be processed and drive the pressure vessel to be processed to rotate. The support mechanism 5 is installed at the top of the frame 1;

[0050] The support mechanism 5 includes a zigzag plate 51 and a T-shaped frame 52. The zigzag plate 51 is installed at a corresponding position on the top of the frame 1. The T-shaped frame 52 is fixedly installed at the bottom of the inner side of the frame 1 and close to the zigzag plate 51. A rotating wheel 53 is rotatably installed between the zigzag plate 51 and the T-shaped frame 52. An anti-slip ring 54 is installed on the outer circumferential surface of the rotating wheel 53. A gearbox 55 is installed at the bend on the inner side of the zigzag plate 51. A servo motor 56 is installed in the middle of the outer side of the gearbox 55. A clamping assembly 57 is installed at the position, and a gradient toggle tooth 58 is fixedly installed on one side of the rotating wheel 53 close to the T-shaped frame 52. The servo motor 56 is turned on to work, and the output end of the servo motor 56 is rotated, and under the transmission of the gearbox 55, the rotating wheel 53 is rotated, and the pressure vessel is used to press the anti-slip ring 54, so that the anti-slip ring 54 is deformed after being compressed, which can increase the friction force, help the rotating wheel 53 to drive the pressure vessel to rotate, thereby promoting circumferential welding of the groove of the pressure vessel.

[0051] There are two zigzag plates 51 , and the two zigzag plates 51 are symmetrically installed along the central axis in the middle of the frame 1 , and the output shaft of the servo motor 56 and the rotating wheel 53 are installed through a gearbox 55 .

[0052] The anti-skid ring 54 is evenly installed on the outer circumferential surface of the rotating wheel 53 , and the material of the anti-skid ring 54 is rubber. The gradual shifting teeth 58 are evenly installed on one side of the rotating wheel 53 close to the T-shaped frame 52 .

[0053] The clamping assembly 57 includes a cylinder 571 and a U-shaped slide 572. The cylinder 571 is installed on the inner side of the zigzag plate 51 and close to the gearbox 55. The U-shaped slide 572 is slidably installed at the edge of the outer side of the zigzag plate 51. The telescopic end of the cylinder 571 is fixedly installed between the bottom of the U-shaped slide 572. A tripod 573 is fixedly installed on the top of the U-shaped slide 572. A rotating disc 574 is rotatably installed on the top of the tripod 573. The staff puts the pressure vessel to be welded on the top of the runner 53, and can use the symmetrical runners 53 on both sides to press The pressure vessel is supported, and the cylinder 571 is turned on to work. The telescopic end of the cylinder 571 is contracted to apply a pulling force to the U-shaped slide plate 572, and is guided down at the edge of the outer side of the zigzag plate 51, and supported by the tripod 573, so that the rotating disk 574 is driven to move. The rotating disks 574 on both sides move toward each other symmetrically, so that a clamping force can be applied to the end of the pressure vessel, and the rotating disk 574 can be rotated, so that the structures can run smoothly, thereby preventing the pressure vessel from getting stuck when rotating.

[0054] There are two U-shaped slide plates 572 , and the two U-shaped slide plates 572 are symmetrically installed along the zigzag plate 51 , and the tripod 573 is installed right above the zigzag plate 51 .

[0055] The third embodiment, as Figures 1 - 8 As shown, based on the first and second embodiments:

[0056] An auxiliary mechanism 6 is installed in the middle of the bottom of the inner cavity of the frame 1, and the auxiliary mechanism 6 includes a bottom plate 61, which is fixedly installed at the bottom of the inner cavity of the frame 1 and close to the rotating wheel 53 by screws, and a Y-shaped support column 62 is fixedly installed at the corresponding position on the top of the bottom plate 61, and an auxiliary wheel 63 is rotatably installed on the top of the Y-shaped support column 62. A reciprocating pretreatment component 64 is installed on the outer side of the Y-shaped support column 62 and close to the gradual shifting tooth 58. With the support of the Y-shaped support column 62, the auxiliary wheel 63 is located directly below the pressure vessel to be processed, and the top of the outer cylindrical surface of the auxiliary wheel 63 is fitted with the bottom of the outside of the pressure vessel, so that when the pressure vessel rolls, the auxiliary wheel 63 can roll, thereby providing rolling support for the pressure vessel.

[0057] The Y-shaped support column 62 is installed vertically, and the position of the auxiliary wheel 63 corresponds to the position of the rotating wheel 53.

[0058] The reciprocating pretreatment assembly 64 includes a bending rod 641, the bottom of which is fixedly installed at the middle of the outer side of the Y-shaped support column 62, the top of the bending rod 641 is slidably installed with an arc-shaped support plate 642, a force-bearing push rod 643 is fixedly installed at the side of the bottom of the arc-shaped support plate 642, a sleeve 647 is rollingly installed on the outer side of the force-bearing push rod 643 and at one end close to the gradual shifting tooth 58, a return spring 644 is fixedly installed between the outer side of the arc-shaped support plate 642 and the inner side of the bending rod 641, a wire brush 645 is fixedly installed on the arc-shaped concave surface of the top of the arc-shaped support plate 642, and a wiping rod 646 is fixedly installed on the top of the arc-shaped support plate 642.

[0059] When the rotating wheel 53 rotates, it can drive the gradually changing toggle tooth 58 to rotate in a circle. The gradually changing toggle tooth 58 contacts the sleeve 647, so that the sleeve 647 is pushed by the rotating gradually changing toggle tooth 58, and under the connection of the force-bearing push rod 643, the pushing force is applied to the arc-shaped support plate 642, and the arc-shaped support plate 642 drives the wire brush 645 and the wiping rod 646 to move in a straight line by the guidance of the bending rod 641, and the reset spring 644 is compressed. As the gradually changing toggle tooth 58 continues to rotate, the gradually changing toggle tooth 58 is separated from the sleeve 647, so that the pushing force on the sleeve 647 disappears, and under the elastic force of the reset spring 644, the arc-shaped support plate 642 drives the wire brush 645 and the wiping rod 646 to move in the opposite direction for reset. In this way, the dust and debris at the welding groove of the pressure vessel can be cleared by the reciprocating movement of the wire brush 645 and the wiping rod 646.

[0060] There are two bent rods 641, and the two bent rods 641 are symmetrically installed along the central axis of the arc-shaped support plate 642. The position of the force-receiving push rod 643 is slidably installed between the outside of the Y-shaped support column 62, and the bent rod 641 passes through the middle of the return spring 644.

[0061] During use, first, the staff places the pressure vessel to be welded on the top of the rotating wheel 53, and then can use the two symmetrically arranged rotating wheels 53 on both sides to support the pressure vessel. Then, the air cylinder 571 is started to work. When the telescopic end of the air cylinder 571 contracts, a pulling force can be applied to the U-shaped slide plate 572. Under the guidance of the outer edge of the zigzag plate 51 and with the support of the tripod 573, the rotating disc 574 is driven to move. By the opposite movement of the two symmetrically arranged rotating discs 574 on both sides, a clamping force can be applied to the end of the pressure vessel.

[0062] And under the support of the Y-shaped support column 62, the auxiliary wheel 63 is located directly below the pressure vessel to be processed. By making the top of the outer circumferential surface of the auxiliary wheel 63 fit with the bottom of the outside of the pressure vessel, when the pressure vessel rolls, the auxiliary wheel 63 can roll, thereby providing rolling support for the pressure vessel.

[0063] At this time, the staff starts the linear actuator 41 to work. The output end of the linear actuator 41 drives the slider 42 to move. Under the connection of the hydraulic cylinder 43 and the flat plate 44, the welding main body 45 is driven to move, and the welding gun 46 can be driven to move linearly together, so that the position of the welding gun 46 can be adjusted, and the welding gun 46 can be moved to directly above the welding groove of the pressure vessel, thereby making the position of the welding gun 46 more accurate.

[0064] By extending and contracting the telescopic end of the hydraulic cylinder 43, the flat plate 44 can be driven to move downward and upward, so that the welding main body 45 and the welding gun 46 are driven to move up and down, and the height of the welding gun 46 can be finely adjusted to adjust the welding gun 46 to a suitable position from the groove of the pressure vessel to be welded.

[0065] And the staff starts the servo motor 56 to work. The output end of the servo motor 56 rotates, and under the transmission of the gearbox 55, the rotating wheel 53 rotates. And the anti-slip ring 54 is pressed by the pressure vessel, so that the anti-slip ring 54 deforms under pressure, and the friction force can be increased, which helps the rotating wheel 53 in rotation to drive the pressure vessel to rotate.

[0066] At the same time, when the rotating wheel 53 rotates, it can drive the gradual change toggle tooth 58 to rotate in a circle, and the gradual change toggle tooth 58 is in contact with the sleeve 647, so that the sleeve 647 is pushed by the rotating gradual change toggle tooth 58, and the pushing force is applied to the arc support plate 642 under the connection of the force-bearing push rod 643, and the arc support plate 642 drives the wire brush 645 and the wiping rod 646 to move linearly by the guidance of the bending rod 641, and the reset spring 644 is compressed. As the gradual change toggle tooth 58 continues to rotate, the gradual change toggle tooth 58 is separated from the sleeve 647, so that the pushing force on the sleeve 647 disappears, and under the elastic force of the reset spring 644, the arc support plate 642 drives the wire brush 645 and the wiping rod 646 to move in the opposite direction to reset, so that the dust and debris at the welding groove of the pressure vessel can be removed by the reciprocating movement of the wire brush 645 and the wiping rod 646;

[0067] As the pressure vessel is driven by the rotating wheel 53 to continue to rotate, the pressure vessel groove can be welded by the welding gun 46, and the rotating disc 574 can be used to rotate, so that the pressure vessel can rotate smoothly, thereby preventing the pressure vessel from getting stuck during rotation.

[0068] When the pressure vessel to be processed rotates, the bottom of the conical surface of the conical wheel 47 fits with the top of the outer surface of the pressure vessel, so that the conical wheel 47 rolls, and the flat plate 44 is supported. The rolling friction of the conical wheel 47 is used to reduce the friction force, so that the structures can run smoothly, thereby making the welding host 45 and the welding gun 46 more stable.

[0069] The two conical wheels 47 are symmetrically installed along the welding gun 46, so that the two symmetrical conical wheels 47 rotate together, and the conical wheels 47 roll against the outer cylindrical surface of the pressure vessel to be processed, so that the pressure vessel to be processed is subjected to balanced force;

[0070] When the pressure vessel is welded, the telescopic end of the hydraulic cylinder 43 is retracted to lift the welding gun 46, and the telescopic end of the cylinder 571 is extended again to move the rotating disc 574 away, and the servo motor 56 is stopped to stop the pressure vessel from rotating, so that the welded pressure vessel can be removed.

[0071] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A welding groove machining device for cryogenic pressure vessels, characterized in that, include: A frame (1), a support frame (2) being fixedly mounted on an outer side of the frame (1), and a strip-shaped hole (3) being provided on a top side of the support frame (2); A groove processing mechanism (4), the groove processing mechanism (4) is used for groove welding of a pressure vessel, and the groove processing mechanism (4) is installed on the top of the frame (1) and close to the strip hole (3); The groove processing mechanism (4) comprises a linear drive (41) and a slider (42), wherein the linear drive (41) is mounted on the top of the frame (1) and close to the strip hole (3), the slider (42) is slidably mounted between the strip hole (3) and the top of the frame (1), a hydraulic cylinder (43) is fixedly mounted on the side of the outer side of the slider (42), a flat plate (44) is fixedly mounted on the telescopic end of the hydraulic cylinder (43), a welding main machine (45) is mounted in the middle of the top of the flat plate (44), a welding gun (46) is mounted on the bottom of the welding main machine (45), and a conical wheel (47) is rotatably mounted on the bottom of the flat plate (44) and close to the welding gun (46); A support mechanism (5), the support mechanism (5) being used to support the pressure vessel to be processed and to drive the pressure vessel to be processed to rotate, the support mechanism (5) being mounted on the top of the frame (1); The support mechanism (5) comprises a zigzag plate (51) and a T-shaped frame (52); the zigzag plate (51) is mounted at a position corresponding to the top of the frame (1); the T-shaped frame (52) is fixedly mounted at the bottom of the inner side surface of the frame (1) and close to the zigzag plate (51); a rotating wheel (53) is rotatably mounted between the zigzag plate (51) and the T-shaped frame (52); an anti-slip ring (54) is mounted on the outer circumferential surface of the rotating wheel (53); a gearbox (55) is mounted at the bend on the inner side of the zigzag plate (51); a servo motor (56) is mounted at the middle of the outer side of the gearbox (55); a clamping assembly (57) is mounted on the outer side of the zigzag plate (51) and close to the gearbox (55); and a gradient shifting tooth (58) is fixedly mounted on one side of the rotating wheel (53) close to the T-shaped frame (52); An auxiliary mechanism (6) is installed in the middle of the bottom of the inner cavity of the frame (1), and the auxiliary mechanism (6) comprises a bottom plate (61), the bottom plate (61) is fixedly installed at the bottom of the inner cavity of the frame (1) and close to the rotating wheel (53) by means of screws, a Y-shaped support column (62) is fixedly installed at a corresponding position on the top of the bottom plate (61), an auxiliary wheel (63) is rotatably installed on the top of the Y-shaped support column (62), and a reciprocating pretreatment component (64) is installed on the outer side of the Y-shaped support column (62) and close to the gradually changing toggle gear (58); The reciprocating pretreatment assembly (64) comprises a bending rod (641), the bottom of which is fixedly mounted on the middle of the outer side of the Y-shaped support column (62), the top of which is slidably mounted with an arc-shaped support plate (642), a force-bearing push rod (643) is fixedly mounted on the side of the bottom of the arc-shaped support plate (642), a sleeve (647) is rollingly mounted on the outer side of the force-bearing push rod (643) and at one end close to the gradual shifting tooth (58), a return spring (644) is fixedly mounted between the outer side of the arc-shaped support plate (642) and the inner side of the bending rod (641), a wire brush (645) is fixedly mounted on the arc-shaped concave surface of the top of the arc-shaped support plate (642), and a wiping rod (646) is fixedly mounted on the top of the arc-shaped support plate (642).

2. The welding groove processing device for a cryogenic pressure vessel according to claim 1, characterized in that: The output end of the linear drive (41) is fixedly mounted on the top of the slider (42), the hydraulic cylinder (43) passes through the center of the strip hole (3), there are two conical wheels (47), and the two conical wheels (47) are symmetrically mounted along the welding gun (46).

3. The welding groove machining device for a cryogenic pressure vessel according to claim 1, characterized in that: There are two zigzag plates (51), and the two zigzag plates (51) are symmetrically installed along the central axis in the middle of the frame (1), and the output shaft of the servo motor (56) and the rotating wheel (53) are installed through a transmission gearbox (55).

4. A welding groove machining device for cryogenic pressure vessels according to claim 1, characterized in that: The anti-skid ring (54) is evenly mounted on the outer circumferential surface of the rotating wheel (53), and the material of the anti-skid ring (54) is rubber. The gradually changing shifting teeth (58) are evenly mounted on a side of the rotating wheel (53) close to the T-shaped frame (52).

5. The welding groove processing device for a cryogenic pressure vessel according to claim 1, wherein: The clamping assembly (57) comprises a cylinder (571) and a U-shaped slide plate (572); the cylinder (571) is mounted on the inner side of the zigzag plate (51) and close to the gearbox (55); the U-shaped slide plate (572) is slidably mounted on the edge of the outer side of the zigzag plate (51); the telescopic end of the cylinder (571) is fixedly mounted between the bottom of the U-shaped slide plate (572); a tripod (573) is fixedly mounted on the top of the U-shaped slide plate (572); and a rotating disc (574) is rotatably mounted on the top of the tripod (573).

6. The welding groove processing device for a cryogenic pressure vessel according to claim 5, characterized in that: There are two U-shaped slide plates (572), and the two U-shaped slide plates (572) are symmetrically installed along the zigzag plate (51), and the tripod (573) is installed directly above the zigzag plate (51).

7. A welding groove machining device for cryogenic pressure vessels according to claim 1, characterized in that: The Y-shaped support column (62) is installed vertically, and the position of the auxiliary wheel (63) corresponds to the position of the rotating wheel (53).

8. A welding groove machining device for a cryogenic pressure vessel according to claim 1, characterized in that: There are two bending rods (641), and the two bending rods (641) are symmetrically installed along the central axis of the arc-shaped support plate (642). The force-bearing push rod (643) is slidably installed between the position and the outer side of the Y-shaped support column (62), and the bending rod (641) passes through the middle of the return spring (644).

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