A pressure vessel shell welding apparatus

Abstract

The present application relates to welding equipment technical field, specifically to a kind of pressure vessel tank welding equipment, including mobile seat, two roller seats are equipped on the mobile seat, roller is rotatably installed on the roller seat, one of the roller seats is fixedly connected with mobile seat, another roller seat is slidably connected with mobile seat, driving device is equipped on the mobile seat, and the driving device is used to drive roller seat movement adjustment the distance of two roller seats.The present application is by controlling two slider movements and controlling scissor lever one, scissor lever two swing, makes scissor lever one and scissor lever two form regular hexagon bevel, so that the support outside the circle at the hinged part of scissor lever one, scissor lever two is equal to the diameter of tank and concentric, so as to be supported by support and roller to support tank, to prevent tank from being deformed, and slider position and scissor lever one swing angle adjustment is convenient, to ensure the butt joint quality and butt joint efficiency of tank.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding equipment, in particular to a pressure vessel tank welding equipment. BACKGROUND

[0002] Large pressure vessel tanks are important equipment in the petrochemical, energy, pharmaceutical and other industries, and their manufacturing quality directly affects production safety and operating efficiency. Such tanks are usually welded together by multiple cylinder segments through girth welds, so the assembly accuracy between the cylinder segments is crucial and directly determines the straightness, roundness and welding quality of the tank.

[0003] Currently, large tank assembly is mostly performed by lifting the cylinder segments with a workshop crane, adjusting the position manually, and correcting with tools such as pry bars until the butt joint requirements are met and then fixed by spot welding. This method has obvious shortcomings. First, the lifting device is flexibly connected, the cylinder segment is prone to shaking, and the posture is unstable, leading to difficult adjustment and low efficiency. Moreover, it relies on manual observation, and the adjustment accuracy is difficult to guarantee, which may cause misalignment and center deviation, affecting the welding quality and overall performance of the tank.

[0004] To solve the above problems, the utility model with application number CN201920569128.8 discloses a special assembly welding tool for circular tanks, which supports the cylinder segment port from the inside through left and right fixed jigs to prevent deformation and improve butt joint accuracy and efficiency. However, such a tool is only suitable for tanks of a specific diameter, and the cost and time required for replacing the jig are high, the flexibility is poor, and in addition, the jig itself is bulky, and installation and replacement still need to rely on the crane, which reduces the assembly efficiency and restricts the improvement of overall assembly efficiency.

[0005] Therefore, in order to ensure the butt joint efficiency and quality of the pressure vessel tank during welding, a pressure vessel tank welding equipment is proposed. SUMMARY

[0006] The purpose of the present application is to provide a pressure vessel tank welding equipment, which controls the movement of two sliding blocks and the swing of shear rod one and shear rod two, so that shear rod one and shear rod two form a regular hexagon bevel, and the support outside the hinge part of shear rod one and shear rod two is equal in diameter and concentric with the tank, so that the tank is supported by the support and the roller, thereby preventing the tank from deforming, and the position of the sliding block and the swing angle of shear rod one are easy to adjust, thereby ensuring the butt joint quality and efficiency of the tank.

[0007] To achieve the above purpose, the present application provides the following technical solutions:

[0008] The utility model provides a pressure vessel tank welding equipment, including mobile seat, be equipped with two drum seat on mobile seat, be equipped with hydraulic cylinder on drum seat, be equipped with drum frame on hydraulic cylinder, be equipped with drum rotationally installed on drum frame, one of drum seat is fixedly connected with mobile seat, another drum seat is slidably connected with mobile seat, be equipped with drive arrangement on mobile seat, drive arrangement is used for driving drum seat moves and adjusts the distance of two drum seat, be equipped with slide rail on drum seat, two slide rails are symmetrically arranged, and the included angle of slide rail and horizontal direction is 60 DEG, the sliding block is slidably installed on slide rail, two shear fork rods no.

[0009] Through hinging two shear fork rods no. on the sliding block, and hinging shear fork rod two on shear fork rod one, and controlling two sliding blocks to move through adjusting part, the position of sliding block is adjusted, and because the guide rod is located in the horizontal slide rail, the end of shear fork rod one can only slide along the horizontal slide rail, so that shear fork rod one swings, thereby driving shear fork rod two to swing, and the included angle of slide rail and horizontal direction is 60 DEG, and the connecting plate is 60 DEG V-shaped plate, so that the shear fork rod one and shear fork rod two on both sides can be regarded as the oblique side of regular hexagon, and the hinge part is the midpoint of the oblique side, so that the support is arranged on the shaft and the sliding block respectively, and a plurality of supports form the circumscribed circle equal to the diameter of the tank and concentric, at this time, the tank can be supported by the support and the drum, so that the deformation of the tank is prevented, and the butt joint quality and efficiency of the tank are ensured, and the drum frame is arranged on the hydraulic cylinder, the height of the drum frame can be adjusted through the hydraulic cylinder, the concentricity of the drum circumscribed circle and the support circumscribed circle is ensured, the uniformity of the tank support is ensured, and the butt joint quality is avoided to reduce.

[0010] Preferably, the adjusting part includes a rope one and a rope two, one end of the rope one and the rope two is connected to the sliding block, a roller one is arranged above the slide rail, two rollers two are arranged on the drum seat, a roller three is arranged on the side of the movable drum seat of the mobile seat, the rope one passes through the roller one above the same side slide rail and the roller two on the drum seat and is connected to the drum seat on the other side, the rope two passes through the roller two on the same side drum seat and the roller three and is connected to the movable drum seat.

[0011] Through the setting of the rope one and the rope two, the guiding effect of the rollers one, two and three is utilized, when the roller seats are away from each other, the rope one can pull the sliding block to move upward, and since the roller three is located on one side of the roller seat, the rope two is released at this time, when the roller seats are close to each other, the rope two will be gradually tightened and pull the sliding block to move downward, so that the sliding block can be driven to move up and down through the rope one and the rope two, the diameter and height of the outer tangent circle of the supporting piece are adjusted to adapt to different sizes of the tank body, and the adjusting piece drives the sliding block to move through the movement of the roller seat, so that synchronous adjustment can be realized, and therefore the adjustment is more convenient.

[0012] Preferably, two adjusting screws are threadedly connected to the sliding block, a connecting ring is rotatably installed on the adjusting screw, and the rope one and the rope two are connected to the two connecting rings respectively.

[0013] Through the setting of the adjusting screw, the connection positions of the rope one and the rope two can be conveniently adjusted, so that the rope one and the rope two can be kept in tension when length errors occur, thereby ensuring the synchronization of adjustment and avoiding the length deviation from causing the center of the outer tangent circle of the supporting piece to deviate, and thus causing the tank body to be unevenly stressed and deformed, thereby affecting the butt joint quality.

[0014] Preferably, the supporting piece comprises a supporting frame and a supporting roller, the shaft is provided with a supporting seat, the sliding block and the supporting seat are both provided with a supporting frame, the supporting roller is rotatably installed on the supporting frame, a limiting groove is formed in the supporting seat, a limiting rod is slidably installed on the scissor lever two, and the end of the limiting rod is located inside the limiting groove.

[0015] The setting of the supporting roller can keep supporting the tank body during welding without affecting the rolling of the tank body, thereby preventing the tank body from being deformed during welding and avoiding the distance between the welding seam and the welding gun changing during the welding process to affect the welding quality, thereby effectively improving the welding quality of the tank body.

[0016] Preferably, a traction rope is connected to the upper end of the sliding rail, the traction rope is connected to the roller seat, the angle between the traction rope and the horizontal direction is smaller than the angle between the sliding rail and the horizontal direction, and the scissor lever one is located below the sliding rail.

[0017] Through the setting of the traction rope, the upper part of the sliding rail can be pulled to avoid the bending moment at the connecting part of the sliding rail and the roller seat from causing stress fatigue damage, the angle between the traction rope and the horizontal direction is smaller than the angle between the sliding rail and the horizontal direction, so that the sliding rail, the traction rope and the roller seat form a triangular structure, thereby improving the stability of the structure and further improving the service life of the parts, and the scissor lever one is located below the sliding rail, so that the scissor lever one does not interfere with the traction rope when it swings.

[0018] Preferably, a pressing groove is arranged on the support frame on the support base, a pressing block is slidably arranged in the pressing groove, and a spring is connected between the pressing block and the support frame.

[0019] The upper support block is elastically connected with the pressing block, and the pressing block always presses the support roller, so that the upper support roller presses the tank body to move downward, the friction between the tank body and the roller is ensured, the slip between the tank body and the roller is avoided, the welding speed is uniform, and the welding quality is affected.

[0020] Preferably, an adjusting groove is arranged on the support frame on the sliding block, two adjusting plates are bolted to the support frame at the adjusting groove, a straight groove is arranged on the adjusting plate, and the bolt passes through the straight groove and is screwed with the support frame to fix the adjusting plate.

[0021] Through the adjusting groove and the adjusting plate, the position and height of the support roller can be conveniently adjusted, the machining error of the parts is effectively eliminated, the machining error does not cause the center of the excircle of the support roller to deviate, the position of the support roller can be adjusted after wear, the supporting effect of the support roller is ensured, and the service life of the welding equipment is effectively improved.

[0022] Preferably, a positioning surface is arranged on the sliding rail, a positioning block is arranged on the moving base, the sliding block moves to the lowermost position of the sliding rail when the sliding block moves to the positioning surface, and the two roller shaft distances are at a minimum value when the roller base moves to the positioning block.

[0023] The positioning surface and the positioning block can provide a clear positioning point for the sliding block and the roller base. When the sliding block moves to the positioning surface and the roller base moves to the positioning block, a standard ring can be placed at this time, the position of the support roller is adjusted through the standard ring, the excircle of the plurality of support rollers is concentric with the tank body, the center of the excircle is prevented from deviating to cause the tank body to be unevenly deformed, the butt joint quality and the welding quality are affected, the positioning surface and the positioning block can conveniently install the rope one and the rope two, the plurality of support rollers are ensured to contact the inscribed circle in the same regular hexagon, the tension of the rope one and the rope two is ensured during installation, the adjustment synchronization is ensured, the length deviation is avoided to cause the center of the excircle of the support to deviate, the tank body is unevenly stressed to be deformed, and the butt joint quality is affected.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] 1. The movement of two sliders is controlled by adjusting components to adjust their positions. Since the guide rod is located inside the transverse slide rail, one end of the scissor bar can only slide along the transverse slide rail, causing the first scissor bar to swing, which in turn drives the second scissor bar to swing. The first and second scissor bars can be regarded as the hypotenuse of a regular hexagon, so that multiple support components form an outer tangent circle that is equal to and concentric with the diameter of the tank. At this time, the tank can be supported by the support components and rollers together, thereby preventing the tank from deforming. The slider position and the swing angle of the first scissor bar are easy to adjust, thus ensuring the docking quality and docking efficiency of the tank.

[0026] 2. The adjusting mechanism uses rope one and rope two to control the sliding of the slider. When the roller seat moves a set distance, the slider can move the same distance. This reduces the power required while ensuring that multiple supports are located at the midpoint of the hypotenuse of the same regular hexagon. It also ensures that the center of the circumscribed circle of the support is located on the plane of symmetry of the two rollers. By adjusting the roller distance and roller height, the circumscribed circle of the roller can be made concentric with the circumscribed circle of the support, ensuring the uniformity of tank support. This not only makes adjustment more convenient and ensures the docking efficiency of the tank, but also ensures the docking quality of the tank.

[0027] 3. The support components are supported by support rollers, which can maintain support for the tank body during the welding process without affecting the tank body's rolling. This prevents the tank body from deforming during welding and avoids the problem of changes in the distance between the weld seam and the welding gun affecting the welding quality, thereby effectively improving the welding quality of the tank body. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a partial structural diagram of the present invention;

[0030] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0031] Figure 4 for Figure 1 Sectional view of part of the structure at point BB;

[0032] Figure 5 for Figure 4 Cross-sectional views of the structural sections of tanks with different diameters being clamped in the middle;

[0033] Figure 6 This is a schematic diagram of the support frame structure located on the slider of the present invention;

[0034] Figure 7 This is a cross-sectional view of the support frame portion of the present invention located on the rotating shaft.

[0035] In the figure: 1, mobile seat; 2, roller seat; 3, roller; 4, driving device; 5, slide rail; 51, positioning surface; 52, transverse slide rail; 6, sliding block; 7, scissor lever one; 71, guide rod; 8, connecting plate; 9, scissor lever two; 10, rotating shaft; 11, support; 111, support frame; 112, support roller; 113, support seat; 114, limiting groove; 115, limiting rod; 12, adjusting part; 121, rope one; 122, rope two; 123, roller one; 124, roller two; 125, roller three; 13, traction rope; 14, tank body; 15, pressing groove; 16, pressing block; 17, spring; 18, adjusting groove; 19, bolt; 20, adjusting plate; 21, straight groove; 22, positioning block; 23, guide rail; 24, roller frame; 25, hydraulic cylinder; 26, roller frame; 27, adjusting screw. DETAILED DESCRIPTION

[0036] Please refer to Figures 1 to 7 The present application provides a kind of pressure vessel tank welding equipment, technical scheme is as follows:

[0037] A pressure vessel tank welding equipment, including guide rail 23, roller frame 24, mobile seat 1, guide rail 23 is arranged on the ground, two mobile seats 1 and multiple roller frames 24 are slidably connected on the guide rail 23, two roller seats 2 are arranged on the mobile seat 1, a hydraulic cylinder 25 is arranged on the roller seat 2, a roller frame 26 is arranged on the hydraulic cylinder 25, a roller 3 is rotatably installed on the roller frame 26, one of the roller seats 2 is welded with the mobile seat 1, and the other roller seat 2 is slidably connected with the mobile seat 1, a driving device 4 is arranged on the mobile seat 1, the driving device 4 adopts a motor and a screw rod, the screw rod is controlled to rotate through the motor, and the screw rod is spirally connected with the slidable roller seat 2, so as to control the movement of the slidable roller seat 2, two slide rails 5 are arranged on the two roller seats 2, the two slide rails 5 are symmetrically arranged, and the slide rail 5 and the horizontal direction form an angle of 60°, a sliding block 6 is slidably installed on the slide rail 5, two scissor levers one 7 are rotatably installed on the sliding block 6 in a concentric manner, a connecting plate 8 is rotatably connected on the two scissor levers one 7, the connecting plate 8 is a V-shaped plate with an angle of 60°, a scissor lever two 9 is rotatably connected on the connecting plate 8, the upper ends of the two scissor lever two 9 are hingedly connected with each other through a rotating shaft 10, a transverse slide rail 52 is arranged on the slide rail 5, a guide rod 71 is arranged on the scissor lever one 7, the guide rod 71 is located in the transverse slide rail 52, a supporting piece 11 is arranged on the sliding block 6 and the rotating shaft 10, an adjusting piece 12 is arranged on the mobile seat 1, the adjusting piece 12 comprises a rope one 121 and a rope two 122, a roller one 123 is arranged above the slide rail 5, a roller two 124 is arranged on the two roller seats 2, a roller three 125 is arranged on the side of the mobile seat 1, one end of the rope one 121 and the rope two 122 is connected with the sliding block 6, the rope one 121 passes through the roller one 123 above the slide rail 5 on the same side, the roller two 124 on the roller seat 2, and is connected with the roller seat 2 on the other side, the rope two 122 passes through the roller two 124 on the same roller seat 2, and is connected with the slidable roller seat 2 through the roller three 125.When the tank body 14 is assembled, the driving device 4 drives the roller seat 2 to move, when the roller seat 2 moves away from each other, the rope one 121 pulls the sliding block 6 to move up, because the pulley three 125 is located on one side of the roller seat 2, at this time the rope two 122 is released, when the roller seat 2 moves close to each other, the rope two 122 is gradually tightened and pulls the sliding block 6 to move down, so that the sliding block 6 moves up and down through the rope one 121 and the rope two 122, when the sliding block 6 moves, because the guide rod 71 is located inside the horizontal sliding rail 52, so that the end of the scissor rod one 7 can only slide along the horizontal sliding rail 52, so that the scissor rod one 7 swings, thus driving the scissor rod two 9 to swing, and the sliding rail 5 and the horizontal direction angle is 60°, and the connecting plate 8 is 60° V-shaped plate, so that the scissor rod one 7 and the scissor rod two 9 on both sides can be regarded as the diagonal of the regular hexagon, and the two roller seats 2 can be regarded as the bottom side of the regular hexagon, so that the diagonal and the bottom side increase and decrease synchronously, and the hinge part of the scissor rod one 7 and the scissor rod two 9 is the midpoint of the diagonal, so that the support 11 is arranged on the rotating shaft 10 and the sliding block 6 respectively, so that a plurality of supports 11 are located on the circumscribed circle with the same diameter and concentric with the tank body 14, at this time the support 11 and the roller 3 can support the tank body 14 together, so as to prevent the tank body 14 from deforming, and the contact part of the roller 3 and the tank body 14 with different diameters is different, so that the circumscribed circle of the roller 3 cannot be concentric with the circumscribed circle of the support 11, therefore the height of the roller frame 26 is adjusted by the hydraulic cylinder 25, so that the circumscribed circle of the roller 3 and the circumscribed circle of the support 11 are concentric, the specific adjustment method is that the change amount of the side length of the regular hexagon is proportional to the change amount of the diameter, and the moving distance of the roller seat 2 is the change length of the diagonal, at this time the moving distance of the roller seat 2 can be adjusted according to the diameter of the tank body 14, and the distance of the roller 3 can be determined according to the moving distance of the roller seat 2, because the height of the lower end of the scissor rod one 7 is constant, so the height of the bottom side of the regular hexagon composed of the scissor rod one 7 and the scissor rod two 9 is constant, so the change amount of the radius of the change amount of the height of the center of the inscribed circle of the regular hexagon composed of the scissor rod one 7 and the scissor rod two 9, and the center position is always located on the symmetry plane of the two rollers 3, according to the Pythagorean theorem, the height of the center of the tank body 14 from the center of the roller 3 can be obtained, at this time the height of the roller 3 is adjusted by the hydraulic cylinder 25, so that the circumscribed circle of the roller 3 and the circumscribed circle of the support 11 are concentric, therefore the adjustment method can quickly adjust the position of the roller 3 according to the diameter of the tank body 14, so as to effectively ensure the efficiency of the butt joint, and through the support of the support 11, the deformation of the tank body 14 during butt joint can be avoided, so as to ensure the butt joint quality.

[0038] The support 11 comprises a support frame 111 and a support roller 112, the rotating shaft 10 is provided with a support seat 113, the sliding block 6 and the support seat 113 are both provided with the support frame 111, the support roller 112 is rotatably installed on the support frame 111, the support seat 113 is provided with a limiting groove 114, the scissor lever two 9 is slidably provided with a limiting rod 115, and the end of the limiting rod 115 is located in the limiting groove 114; the support roller 112 supports the tank body 14, the support roller can rotate, the support of the tank body 14 can be maintained during the welding process without affecting the rolling of the tank body 14, so that the deformation of the tank body 14 during welding can be prevented, the problem that the distance between the welding seam and the welding gun changes during the welding process to affect the welding quality can be avoided, and thus the welding quality of the tank body 14 can be effectively improved; the support frame 111 on the support seat 113 is provided with a pressing groove 15, a pressing block 16 is slidably installed in the pressing groove 15, and the pressing block 16 is connected with the support frame 111 through a spring 17; the pressing block 16 is elastically connected to the upper support seat 113, so that the pressing block 16 is always pressed against the support roller 112 by the elastic force of the spring 17, the upper support roller 112 is pressed against the tank body 14 to move downward, the friction between the tank body 14 and the roller 3 is ensured, the slipping between the roller 3 and the tank body 14 is avoided, the problem that the welding speed is uneven to affect the welding quality is avoided, the position error of the support roller 112 is amplified by the wear error of the multiple connecting pieces, the elastic connection can ensure the supporting force of the upper support roller 112 on the tank body 14 when the error occurs, and the support function of the support 11 on the scissor lever two 9 can be ensured; the support frame 111 on the sliding block 6 is provided with an adjusting groove 18, two adjusting plates 20 are connected to the support frame 111 through a bolt 19 at the adjusting groove 18, a straight groove 21 is formed in the adjusting plate 20, and the bolt 19 passes through the straight groove 21 and is screwed with the support frame 111 to fix the adjusting plate 20; when the straight groove 21 is formed in the adjusting plate 20 and the adjusting plate 20 is fixed through the bolt 19, the position of the adjusting plate 20 can be adjusted, the position of the support roller 112 can be adjusted in the adjusting groove 18, the position and height of the support roller 112 can be adjusted, the machining error of the parts can be effectively eliminated, the eccentricity of the support roller 112 from the circle center can be avoided, the position of the support roller 112 can be adjusted after the support roller 112 and the adjusting plate 20 are worn, the supporting effect of the support roller 112 can be ensured, and thus the service life of the welding equipment can be effectively prolonged; two adjusting screws 27 are screwed on the sliding block 6, a connecting ring is rotatably installed on the adjusting screw 27, and a rope one 121 and a rope two 122 are connected to the two connecting rings respectively;By setting the adjusting screw 27, the connection position of the rope one 121 and the rope two 122 can be conveniently adjusted, so that the rope one 121 and the rope two 122 can be in tension when the length error occurs, thereby ensuring the adjustment synchronization, and avoiding that the length deviation causes the center of the circumscribed circle of the support piece 11 to deviate, and the tank body 14 is unevenly stressed and deformed, thereby affecting the butt joint quality; the positioning surface 51 and the positioning block 22 can provide a clear positioning point for the sliding block 6 and the roller seat 2, when the sliding block 6 moves to the positioning surface 51 and the roller seat 2 moves to the positioning block 22, a standard ring can be placed at this time, the position of the support roller 112 is adjusted through the standard ring, thereby ensuring that the circumscribed circle of the plurality of support rollers 112 is concentric with the tank body 14, thereby avoiding that the center of the circumscribed circle deviates to cause the tank body 14 to be unevenly stressed and deformed, thereby affecting the butt joint quality and the welding quality; when the sliding block 6 moves to the positioning surface 51 and the roller seat 2 moves to the positioning block 22, the rope one 121 and the rope two 122 are in tension at this time, so that when the rope one 121 and the rope two 122 are installed, the length error of the rope one 121 and the rope two 122 can be avoided to cause the position of the sliding block 6 to deviate or the tensioning to fail, thereby ensuring the adjustment synchronization, and also avoiding that the length deviation causes the center of the circumscribed circle of the support piece 11 to deviate, and the tank body 14 is unevenly stressed and deformed, thereby affecting the butt joint quality; the upper end of the slide rail 5 is connected with the traction rope 13, the traction rope 13 is connected with the roller seat 2, the angle between the traction rope 13 and the horizontal direction is smaller than the angle between the slide rail 5 and the horizontal direction, and the scissor lever one 7 is located below the slide rail 5; through the setting of the traction rope 13, the upper part of the slide rail 5 can be pulled, and the bending moment at the connection part of the slide rail 5 and the roller seat 2 is avoided to be damaged due to stress fatigue, the angle between the traction rope 13 and the horizontal direction is smaller than the angle between the slide rail 5 and the horizontal direction, so that the slide rail 5, the traction rope 13 and the roller seat 2 form a triangular structure, thereby improving the stability of the structure and further improving the service life of the parts, and the scissor lever one 7 is located below the slide rail 5, so that the scissor lever one 7 does not interfere with the traction rope 13 when it swings.

[0039] Working principle: before installation, a standard ring is placed on the roller 3 and the roller frame 24, the sliding block 6 is slid to the abutting part of the positioning surface 51, the roller seat 2 is controlled to move to the positioning block 22, at this time, the two adjusting screws 27 are rotated, so that the rope one 121 and the rope two 122 are in tension, and the sliding block 6 is always in contact with the positioning surface 51, then the position of the support roller 112 is adjusted, so that the support roller 112 abuts against the standard ring, and the upper support roller 112 extrudes the pressing block 16, so that the spring 17 is compressed by 2 cm.

[0040] In operation, the slider 6 is moved to the uppermost position, the can body 14 to be welded is placed on the roller 3, the diameter of the can body 14 is calculated according to the difference between the diameter of the can body 14 and the diameter of the standard circle, and the length of the side of the circumscribed hexagon of the can body 14 and the standard circle, so as to determine the distance that the slider 6 needs to move, at this time, the driving device 4 is controlled to drive the roller seat 2 to move the same distance, and since the height of the lower end of the scissors lever 7 is unchanged, the height of the bottom side of the regular hexagon formed by the scissors lever 7 and the scissors lever 9 is unchanged, and the change amount of the radius of the change amount of the height of the center of the inscribed circle of the regular hexagon formed by the scissors lever 7 and the scissors lever 9, and the center position is always located on the symmetry plane of the two rollers 3, according to the Pythagorean theorem, the height of the center of the can body 14 from the center of the roller 3 can be obtained, at this time, the height of the roller 3 can be adjusted through the hydraulic cylinder 25, so that the circumscribed circle of the roller 3 is concentric with the circumscribed circle of the supporting piece 11, at this time, the plurality of supporting rollers 112 and the roller 3 can support the can body 14, so as to ensure the roundness of the can body 14, thereby ensuring the butt joint quality, and the butt joint is convenient, and the butt joint efficiency is effectively improved, and after the can body 14 is supported, the moving seat 1 and the roller frame 24 are controlled to move synchronously until the two can bodies 14 are in close contact and stop moving, at this time, the butt joint of the can body 14 is completed, and at this time, the welding operation can be performed.

[0041] The above describes one specific embodiment of the present application in detail in combination with the drawings, but the present application is not limited to the above described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and ideas of the present application, and should still fall within the protection scope of the present application.

Claims

1. A pressure vessel tank welding equipment, characterized in that, The system includes a movable base (1), on which two roller seats (2) are provided. A hydraulic cylinder (25) is provided on each roller seat (2), and a roller frame (26) is provided on each hydraulic cylinder (25). A roller (3) is rotatably mounted on the roller frame (26). One roller seat (2) is fixedly connected to the movable base (1), and the other roller seat (2) is slidably connected to the movable base (1). A driving device (4) is provided on the movable base (1) to drive the roller seat (2) to move and adjust the distance between the two roller seats (2). Each roller seat (2) is provided with a slide rail (5), which is symmetrically arranged, and the slide rail (5) forms a 60° angle with the horizontal direction. The slide rail (5) slides... A slider (6) is mounted on the slide. Two scissor bars (7) are concentrically mounted on the slider (6). A connecting plate (8) is rotatably connected to the two scissor bars (7). The connecting plate (8) is a 60° V-shaped plate. A scissor bar (9) is rotatably connected to the connecting plate (8). The upper ends of the two scissor bars (9) are hinged to each other by a rotating shaft (10). A transverse slide rail (52) is provided on the slide rail (5). A guide rod (71) is provided on the scissor bar (7). The guide rod (71) is located inside the transverse slide rail (52). Support members (11) are provided on both the slider (6) and the rotating shaft (10). An adjusting member (12) is provided on the moving seat (1). The adjusting member (12) is used to control the movement of the slider (6). The adjusting component (12) includes a first rope (121) and a second rope (122). One end of the first rope (121) and the second rope (122) are connected to the slider (6). A first roller (123) is provided above the slide rail (5). Two rollers (2) are provided on the rollers (2). The movable seat (1) is located on one side of the slidable roller seat (2) and is provided with a third roller (125). The first rope (121) passes over the first roller (123) above the slide rail (5) on the same side and the second roller (124) on the roller seat (2) and is connected to the roller seat (2) on the other side. The second rope (122) passes over the second roller (124) on the roller seat (2) on the same side and passes over the third roller (125) and is connected to the slidable roller seat (2). The support member (11) includes a support frame (111) and a support roller (112). A support seat (113) is provided on the rotating shaft (10). Both the slider (6) and the support seat (113) are provided with support frames (111). The support roller (112) is rotatably mounted on the support frame (111). A pressure groove (15) is provided on the support frame (111) located on the support base (113). A pressure block (16) is slidably installed inside the pressure groove (15). A spring (17) is connected between the pressure block (16) and the support frame (111). The spring (17) pushes the pressure block (16) to squeeze the support roller (112). The support roller (112) located at the slider (6) is adjustablely mounted on the support frame (111); In use, the scissor bar 1 (7) and scissor bar 2 (9) on both sides of the tank body (14) are used as the hypotenuse of a regular hexagon, and the two roller seats (2) are used as the base of the regular hexagon. The hypotenuse and the base increase and decrease synchronously, and the hinge point of the scissor bar 1 (7) and scissor bar 2 (9) is the midpoint of the hypotenuse, so that the multiple support rollers (112) are located on the circumscribed circle that is equal to and concentric with the diameter of the tank body (14).

2. The pressure vessel tank welding equipment according to claim 1, characterized in that, The slider (6) is threaded with two adjusting screws (27), and a connecting ring is rotatably installed on the adjusting screw (27). Rope 1 (121) and Rope 2 (122) are respectively connected to the two connecting rings.

3. The pressure vessel tank welding equipment according to claim 1, characterized in that, The support base (113) has a limiting groove (114), and a limiting rod (115) is slidably installed on the second scissor bar (9), with the end of the limiting rod (115) located inside the limiting groove (114).

4. The pressure vessel tank welding equipment according to claim 1, characterized in that, The upper end of the slide rail (5) is connected to a traction rope (13), which is connected to the roller seat (2). The angle between the traction rope (13) and the horizontal direction is smaller than the angle between the slide rail (5) and the horizontal direction. The scissor bar (7) is located below the slide rail (5).

5. The pressure vessel tank welding equipment according to claim 3, characterized in that, An adjustment groove (18) is provided on the support frame (111) located on the slider (6). Two adjustment plates (20) are connected to the support frame (111) at the adjustment groove (18) by bolts (19). A straight groove (21) is provided on the adjustment plate (20). The bolts (19) pass through the straight groove (21) and are threadedly connected to the support frame (111) to fix the adjustment plate (20).

6. The pressure vessel tank welding equipment according to claim 5, characterized in that, The slide rail (5) is provided with a positioning surface (51), the movable seat (1) is provided with a positioning block (22), when the slider (6) moves to the positioning surface (51), the slider (6) moves to the bottom of the slide rail (5), when the roller seat (2) moves to the positioning block (22), the wheel distance between the two rollers (3) is at the minimum value.

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