Special-shaped end socket welding device

Abstract

The invention relates to the technical field of sealing head welding, in particular to a special-shaped sealing head welding device which comprises a bottom plate, a rotating disc for placing a tank body is arranged on the bottom plate, a driving assembly for driving the rotating disc to rotate is arranged in the bottom plate, and a lifting appliance for lifting a special-shaped sealing head is further arranged at the top of the bottom plate. A welding device for welding the end socket is arranged on one side of the lifting appliance; wherein the lifting appliance comprises a cross beam, liftable stand columns are symmetrically arranged at the bottoms of the two ends of the cross beam and used for driving the cross beam to move in the vertical direction, the stand columns are arranged at the top of the bottom plate in a sliding mode, and the lifting appliance can move front and back on the bottom plate. The sealing head and the tank body can be automatically positioned, and accurate butt joint between the sealing head and the tank body is ensured; meanwhile, the distance between the welding gun and the tank body does not need to be manually adjusted, and therefore the automatic welding process is achieved; not only is the working efficiency improved, but also the consistency and reliability of the welding quality are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of end cap welding, and in particular to a special-shaped end cap welding device. Background Art

[0002] In modern industrial production, the manufacturing and welding of tank bodies is one of the key processes in many industries, especially in the fields of chemical industry, food processing, pharmaceutical industry, etc. The tank body is usually composed of multiple parts, among which the head is one of the important components of the tank body; the design of the head is varied, including oval and other special-shaped heads, which need to be accurately positioned and welded on the tank body to ensure the sealing and structural strength of the tank body; when positioning, the operator manually aligns the head with the tank body and then uses a welding gun for welding, which has problems such as inaccurate positioning and unstable welding quality.

[0003] The patent with application number CN202310231239.9 discloses a pressure tank head welding device, including an equipment frame and a working frame arranged on the upper edge of the equipment frame; the equipment frame is provided with a positioning assembly, the pressure tank is loaded in the inner cavity of the equipment frame and fixed by the positioning assembly; the working frame is provided with a pressing frame for fixing the head, and a welding frame for welding the head.

[0004] However, when it is used, it is necessary to manually align the head with the tank body, which makes it difficult to quickly and automatically connect the special-shaped head with its corresponding special-shaped tank body, and the distance between the welding gun and the connection point needs to be manually adjusted for welding, which makes it difficult to solve the above-mentioned problems. Summary of the invention

[0005] In view of this, the purpose of the present invention is to propose a special-shaped head welding device to solve the problem that the existing special-shaped head welding device is difficult to automatically position the head and the tank body and requires manual adjustment of the distance between the welding gun and the joint for welding.

[0006] Based on the above purpose, the present invention provides a special-shaped head welding device, comprising a bottom plate, a turntable for placing a tank body is arranged on the bottom plate, a driving assembly for driving the turntable to rotate is arranged in the bottom plate, a lifting device for lifting the special-shaped head is also arranged on the top of the bottom plate, and a welding device for welding the head is arranged on one side of the lifting device;

[0007] The sling comprises a crossbeam, and the bottoms of both ends of the crossbeam are symmetrically provided with liftable columns for driving the crossbeam to move in the vertical direction. The columns are slidably provided on the top of the bottom plate, and the sling can move forward and backward on the bottom plate; a slider is slidably provided at the bottom of the crossbeam, and an elliptical hanging plate is rotatably provided at the bottom of the slider, and the hanging plate can slide left and right relative to the crossbeam;

[0008] A fourth electric push rod is arranged at the bottom center of the hanging plate, and an electric suction cup for adsorbing and fixing the head is arranged at the bottom of the fourth electric push rod; main positioning fixtures are symmetrically arranged at the front, back, left and right ends of the bottom of the hanging plate, and the four groups of main positioning fixtures can position the horizontal and longitudinal positions of the head consistent with the tank body after clamping the periphery of the tank body; auxiliary positioning fixtures are symmetrically arranged on the front and back sides of the two groups of focal points at the bottom of the hanging plate; the auxiliary positioning fixtures can position the angle of the head consistent with the tank body after clamping the periphery of the tank body.

[0009] Furthermore, the column includes a bottom column, a third electric push rod is arranged on the top of the bottom column, and the top of the third electric push rod is fixedly connected to the bottom of the cross beam.

[0010] Furthermore, two groups of slide rails are symmetrically arranged on the bottom plate, and the two groups of slide rails are longitudinally arranged, and the two groups of slide rails are respectively slidably matched with the bottoms of the two groups of bottom columns.

[0011] Furthermore, the main positioning fixture includes a first electric telescopic rod, the top of the first electric telescopic rod is fixedly connected to the bottom of the hanging plate, the bottom of the first electric telescopic rod is fixedly provided with a first mounting block, a fifth electric push rod is fixedly sleeved in the first mounting block, and a positioning plate is fixedly provided at the movable end of the fifth electric push rod close to the electric suction cup.

[0012] Furthermore, a receiving groove is provided on one side of the positioning plate close to the electric suction cup, an elastic plate is rotatably provided at the top of the inner cavity of the receiving groove, a supporting spring is provided between the elastic plate and the receiving groove, one end of the supporting spring is connected to the elastic plate, and the other end is connected to the groove wall of the receiving groove.

[0013] Furthermore, the auxiliary positioning fixture includes a second electric telescopic rod, the top of the second electric telescopic rod is fixedly connected to the bottom of the hanging plate, the bottom of the second electric telescopic rod is fixedly provided with a second mounting block, a sixth electric push rod is fixedly sleeved in the second mounting block, and the movable end of the sixth electric push rod close to the electric suction cup is movably connected with a splint.

[0014] Furthermore, the welding device includes a lifting pole, the bottom of the lifting pole is provided with an electric track for driving the lifting pole to move forward and backward, a sliding rod is fixedly provided on the front side of the lifting pole, a sliding sleeve is provided on the sliding rod, a first spring is provided between the ring and the lifting pole, one end of the first spring is connected to the lifting pole, and the other end is connected to the ring, a support rod is fixedly connected to the front side of the ring, and an operating panel is fixedly connected to the other end of the support rod; a fine-tuning electric drive rod is fixedly provided on the top of the operating panel, a longitudinal plate is fixedly provided on the top of the fine-tuning electric drive rod, and a welding assembly is provided on the front side of the longitudinal plate; a horizontal pulley assembly is also provided at the center of the front side of the operating panel, and a limiting plate is provided at the end of the sliding rod away from the lifting pole.

[0015] Furthermore, the pulley assembly includes a lower pulley bracket, which is fixedly arranged on the front side of the operating panel, a fixed pulley is rotatably arranged on the other end of the lower pulley bracket, and a receiver is arranged on the top of the lower pulley bracket; an elastic telescopic rod is fixedly arranged on the front side of the longitudinal plate, an upper pulley bracket is fixedly arranged on the other end of the elastic telescopic rod, a movable pulley is rotatably arranged on the other end of the upper pulley bracket, and a laser transmitter is arranged on the top of the upper pulley bracket.

[0016] Furthermore, the welding assembly includes a second electric push rod, a second electric push rod is fixedly sleeved on the longitudinal plate, a welding gun is fixedly connected to the end of the movable end of the second electric push rod close to the side of the hanger, a support frame is provided on the top of the longitudinal plate, an electric welder is provided on the support frame, and the electric welder is electrically connected to the welding gun.

[0017] Furthermore, a mounting seat is fixedly provided on the front side of the operating panel, and a cleaning roller for cleaning the joint between the tank body and the head is rotatably connected to the top of the mounting seat, and bristles are provided on the cleaning roller. A first transmission wheel for driving the cleaning roller to rotate is provided at the bottom of the mounting seat, and a second transmission wheel that rotates synchronously with the fixed pulley is provided on the lower pulley bracket, and the same set of transmission belts is sleeved between the first transmission wheel and the second transmission wheel.

[0018] Beneficial effects of the present invention: As can be seen from the above, the special-shaped head welding device provided by the present invention can realize precise angle and position adjustment between the elliptical head and the tank body by means of the main positioning fixture and the auxiliary positioning fixture; when the four sets of auxiliary positioning fixtures are fixed to the outer periphery of the elliptical tank body, the angle of the head can be fine-tuned to ensure that the two sets of focal point connection lines of the head are parallel and aligned with the corresponding focal point connection lines of the tank body; when the four sets of main positioning fixtures are also fixed to the outer periphery of the tank body, the front, back, left, and right positions of the head can be fine-tuned until the head and the tank body are completely aligned in the horizontal direction, thereby quickly and accurately completing the positioning of the head; in addition, by means of the provided collar, the first A spring and pulley assembly. For special-shaped tanks such as elliptical ones, when they rotate, the first spring uses its own elastic effect to ensure that the pulley assembly always slides in close contact with the outer surface of the tank; the welding gun can automatically adjust the distance between it and the tank body to maintain a consistent welding spacing without manual intervention; this method not only significantly improves the welding efficiency, but also improves the welding quality; the device can realize automatic positioning of the head and the tank body to ensure precise docking between the two; at the same time, the device does not need to manually adjust the distance between the welding gun and the tank body, thereby realizing an automated welding process; it not only improves work efficiency, but also ensures the consistency and reliability of welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the first viewing angle of an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of a front cross-sectional structure of the crossbeam according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic structural diagram of the hanging plate from a first viewing angle according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the main positioning fixture structure according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic cross-sectional structural diagram of the positioning plate according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic structural diagram of the auxiliary positioning fixture according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic structural diagram of the welding device according to an embodiment of the present invention;

[0027] Figure 8 For the embodiment of the present invention Figure 7 A is a schematic diagram of the enlarged structure of the middle part;

[0028] Fig. 9 This is a schematic cross-sectional structure diagram of the sleeve ring according to an embodiment of the present invention;

[0029] Fig.10 For the embodiment of the present invention Figure 7 A schematic diagram of the enlarged structure of B;

[0030] Fig.11 This is a schematic structural diagram of the welding assembly according to an embodiment of the present invention;

[0031] Fig.12 A schematic diagram of a partial structure of the cleaning roller according to an embodiment of the present invention;

[0032] Fig.13 This is a schematic diagram of the internal structure of the bottom plate according to an embodiment of the present invention;

[0033] Fig.14 This is a schematic diagram of the top view of the cleaning roller according to an embodiment of the present invention;

[0034] Fig.15 A schematic diagram of a partial internal structure of the cleaning roller according to an embodiment of the present invention;

[0035] Fig.16 For the embodiment of the present invention Fig.15 Schematic diagram of the enlarged structure of C in the figure.

[0036] The markings in the figure are:

[0037] 1. Bottom plate; 101. Motor; 2. Turntable; 3. Lifting pole; 301. Bottom pole; 302. First electric push rod; 303. Top pole; 4. Sliding rod; 401. First spring; 402. Limiting plate; 5. Ring; 501. Damping pad; 6. Operation panel; 601. Support rod; 602. Longitudinal plate; 603. Fine adjustment electric drive rod; 7. Pulley assembly; 701. Lower pulley bracket; 702. Fixed pulley; 703 , receiver; 704, elastic telescopic rod; 705, upper pulley bracket; 706, movable pulley; 707, laser transmitter; 8, welding assembly; 801, second electric push rod; 802, welding gun; 803, electric welder; 9, column; 901, bottom column; 902, third electric push rod; 10, slide rail; 11, crossbeam; 1101, slide groove; 1102, slider; 1103, round rod; 12, hanging plate; 13, the first Four electric push rods; 14, electric suction cup; 15, main positioning fixture; 1501, first electric telescopic rod; 1502, first mounting block; 1503, fifth electric push rod; 1504, positioning plate; 1505, receiving groove; 1506, elastic plate; 1507, supporting spring; 16, auxiliary positioning fixture; 1601, second electric telescopic rod; 1602, second mounting block; 1603, sixth electric push rod; 1604, clamping plate ; 17. Electric track; 18. Air pump; 19. Mounting seat; 20. Cleaning roller; 2001. Hollow rod; 2002. Fixed half shell; 2003. Air bag; 2004. Movable half shell; 2005. Roller; 2006. Vent hole; 2007. Movable groove; 2008. Sliding rod; 2009. Connecting spring; 21. Transmission belt; 22. Air intake pump; 2201. Inflatable tube; 23. Distance sensor. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0039] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 As shown, a special-shaped head welding device includes a bottom plate 1, a turntable 2 for placing a tank body is arranged on the bottom plate 1, a driving component for driving the turntable 2 to rotate is arranged inside the bottom plate 1, a lifting device for lifting the special-shaped head is also arranged on the top of the bottom plate 1, and a welding device for welding the head is arranged on one side of the lifting device;

[0041] The sling includes a crossbeam 11, and the bottoms of both ends of the crossbeam 11 are symmetrically provided with liftable columns 9 for driving the crossbeam 11 to move in the vertical direction. The columns 9 are slidably provided on the top of the bottom plate 1, and the sling can move forward and backward on the bottom plate 1; a slider 1102 is slidably provided at the bottom of the crossbeam 11, and an elliptical hanging plate 12 is rotatably provided at the bottom of the slider 1102, and the hanging plate 12 can slide left and right relative to the crossbeam 11;

[0042] A fourth electric push rod 13 is arranged at the bottom center of the hanging plate 12, and an electric suction cup 14 for adsorbing and fixing the head is arranged at the bottom of the fourth electric push rod 13; an air pump 18 is arranged on the cross beam 11, and the air pump 18 is connected with the electric suction cup 14 through an air duct to control the operation of the electric suction cup 14; main positioning fixtures 15 are respectively arranged at the front, back, left and right ends of the bottom of the hanging plate 12, and the four groups of main positioning fixtures 15 can clamp the periphery of the tank body to position the horizontal and longitudinal positions of the head to be consistent with the tank body; auxiliary positioning fixtures 16 are symmetrically arranged on the front and back sides of the two groups of focal points at the bottom of the hanging plate 12; the auxiliary positioning fixtures 16 can clamp the periphery of the tank body to position the head angle to be consistent with the tank body.

[0043] In this embodiment, the elliptical special-shaped end cap is firstly lifted by a lifting device; specifically, the cross beam 11 and the hanging plate 12 are lifted and lowered by the column 9, so that the electric suction cup 14 is close to the end cap; then, the electric suction cup 14 is started to adsorb and fix it on the end cap; then, the hanging plate 12 is lifted and lowered by the column 9 again, so that the end cap rises to the top;

[0044] Afterwards, the elliptical tank body to be welded and adapted to the special-shaped head is placed on the turntable 2, and the position of the tank body is adjusted by the driving assembly so that it is in a position roughly consistent with the angle of the head;

[0045] Next, by lifting and lowering the column 9, the head is moved to the top of the tank body, and the front and rear two opposite auxiliary positioning fixtures 16 are started to move down to the outer periphery of the top of the tank body and then synchronously approach each other to clamp on the outer periphery of the tank body. Since the auxiliary positioning fixtures 16 are arranged on the front and rear sides of the bottom focus, and the hanging plate 12 is rotatably connected with the slider 1102, the hanging plate 12 can rotate relative to the crossbeam 11 with the slider 1102 as the center; therefore, when the four sets of auxiliary positioning fixtures 16 are clamped on the outer periphery of the elliptical tank body, they can The angle of the end cap is fine-tuned to make the line segment formed by the connection lines of the two groups of foci of the end cap parallel to the line segment formed by the connection lines of the two groups of foci of the tank body; after starting the left and right sets of main positioning fixtures 15 and the front and rear sets of main positioning fixtures 15 to move down to the top of the tank body respectively, and then synchronously approach each other to clamp on the outer periphery of the tank body, the front, back, left, and right positions of the end cap can be fine-tuned to make the front, back, left, and right positions of the end cap consistent with the position of the tank body. At this time, the positions of the end cap and the tank body completely overlap in the horizontal direction, and the positioning of the end cap can be completed quickly and accurately;

[0046] After the end cap is positioned, the fourth electric push rod 13 is started to push the electric suction cup 14 downward to drive the end cap to be pressed down onto the tank body, so as to complete the docking between the end cap and the tank body; after docking, the main positioning fixture 15 and the auxiliary positioning fixture 16 are first loosened and the main positioning fixture 15 and the auxiliary positioning fixture 16 are moved upward and reset, and then the welding device is started to weld the docking between the end cap and the tank body;

[0047] After the welding is completed, the electric suction cup 14 is turned off and the hanger is removed; the welded tank body is removed, and the entire welding process is completed.

[0048] Preferably, the column 9 includes a bottom column 901, a third electric push rod 902 is provided on the top of the bottom column 901, and the top of the third electric push rod 902 is fixedly connected to the bottom of the crossbeam 11;

[0049] Two sets of slide rails 10 are symmetrically arranged on the bottom plate 1. The two sets of slide rails 10 are arranged longitudinally. The two sets of slide rails 10 are respectively slidably matched with the bottoms of the two sets of bottom columns 901;

[0050] By setting the third electric push rod 902, the positions of the hanging plate 12 and the electric suction cup 14 in the vertical direction can be adjusted; specifically, when the end cap needs to be hoisted, the worker first places the end cap on the turntable 2, and the driving assembly drives the turntable 2 to rotate to adjust the end cap to a suitable position; then, the third electric push rod 902 is controlled to drive the hanging plate 12 to move down to the lowest point, and then the fourth electric push rod 13 is controlled to drive the electric suction cup 14 to move down to the center of the top of the end cap; then, the electric suction cup 14 is started to adsorb and fix it on the end cap; then, the hanging plate 12 is lifted and lowered again by the third electric push rod 902 to make the end cap rise to the top;

[0051] In addition, by setting up the main positioning clamp 15, when the head is placed on the turntable 2 and prepared for lifting, the four groups of main positioning clamps 15 are started and moved down to the outer periphery of the head to clamp and center the head, so that the head can be centered at the center of the hanging plate 12, ensuring that the suction cup can be adsorbed at the center of the top of the head.

[0052] Preferably, the main positioning fixture 15 includes a first electric telescopic rod 1501, the top of the first electric telescopic rod 1501 is fixedly connected to the bottom of the hanging plate 12, a first mounting block 1502 is fixedly provided at the bottom of the first electric telescopic rod 1501, a fifth electric push rod 1503 is fixedly sleeved in the first mounting block 1502, and a positioning plate 1504 is fixedly provided at the moving end of the fifth electric push rod 1503 close to the electric suction cup 14;

[0053] A receiving groove 1505 is provided on one side of the positioning plate 1504 close to the electric suction cup 14, an elastic plate 1506 is rotatably provided on the top of the inner cavity of the receiving groove 1505, a supporting spring 1507 is provided between the elastic plate 1506 and the receiving groove 1505, one end of the supporting spring 1507 is connected to the elastic plate 1506, and the other end is connected to the groove wall of the receiving groove 1505;

[0054] After the left and right main positioning fixtures 15 and the front and rear main positioning fixtures 15 are started and moved down to the top of the tank body respectively, they are then synchronously moved close to each other to clamp around the tank body, so that the front and rear left and right positions of the head can be finely adjusted to make the front and rear left and right positions of the head consistent with the position of the tank body. At this time, the positions of the head and the tank body are completely overlapped in the horizontal direction;

[0055] Specifically, the four groups of first electric telescopic rods 1501 are synchronously started to drive the four groups of first mounting blocks 1502 to move downward, so that the four groups of positioning plates 1504 are moved downward in the vertical direction to the outer periphery of the top of the tank body; then, the four groups of fifth electric push rods 1503 are synchronously started to push the four groups of positioning plates 1504, so that the left and right groups of positioning plates 1504 are synchronously approached and closely attached to the left and right sides of the tank body, and the front and rear groups of positioning plates 1504 are synchronously approached and closely attached to the outer periphery of the tank body;

[0056] When the positioning plates 1504 on the left and right sides move synchronously and fit closely to the sides of the tank body, the hanging plate 12 can move left and right along the crossbeam 11 through the slider 1102, and the hanging plate 12 can drive the hoisted head to move together. Therefore, the reaction force generated by the positioning plates 1504 close to the tank body will cause the head to automatically adjust its position in the left and right directions, ensuring the precise alignment between the head and the tank body in the horizontal direction.

[0057] When the front and rear two sets of positioning plates 1504 move synchronously and fit closely to the side of the tank body, since the upright column 9 can drive the cross beam 11 and the hanging plate 12 to move longitudinally on the bottom plate 1, and the hanging plate 12 can drive the hoisted head to move together, the reaction force generated by the positioning plate 1504 close to the tank body will cause the head to automatically adjust its position in the longitudinal direction, ensuring the precise alignment between the head and the tank body in the longitudinal direction;

[0058] In addition, through the provision of the elastic plate 1506, during the docking process between the head and the tank body, the fourth electric push rod 13 drives the head to move downward, and when moving downward, the head will contact the elastic plates 1506 on all sides and squeeze the elastic plates 1506 into the accommodating groove 1505. The elasticity of the support spring 1507 itself can absorb the shaking generated by the head during the downward movement, thereby ensuring the stability of the head during the docking process and further improving the accuracy of the docking between the head and the tank body.

[0059] Preferably, the auxiliary positioning fixture 16 includes a second electric telescopic rod 1601, the top of the second electric telescopic rod 1601 is fixedly connected to the bottom of the hanging plate 12, the bottom of the second electric telescopic rod 1601 is fixedly provided with a second mounting block 1602, a sixth electric push rod 1603 is fixedly sleeved in the second mounting block 1602, and the mobile end of the sixth electric push rod 1603 close to the electric suction cup 14 is movably connected with a clamping plate 1604;

[0060] When the four sets of auxiliary positioning fixtures 16 are clamped on the periphery of the elliptical tank body, the angle of the elliptical head can be finely adjusted so that the line segment formed by the two sets of focus lines of the head and the line segment formed by the two sets of focus lines of the tank body are parallel to each other;

[0061] Specifically, as a special-shaped head, the elliptical shape needs to be positioned at an angle consistent with the tank body when docking, compared with the traditional conventional head, so that the line segment formed by the two sets of focus lines of the head and the line segment formed by the two sets of focus lines of the tank body are parallel to each other, so as to achieve docking; when in use, the four sets of second electric telescopic rods 1601 are synchronously started to drive the four sets of second mounting blocks 1602 to move downward, so that the four sets of clamps 1604 are moved down in the vertical direction to the outer periphery of the top of the tank body; then, the four sets of sixth electric push rods 1603 are synchronously started to push the four sets of clamps 1604, so that the front and rear clamps 1604 are synchronously approached and tightly attached to the front and rear sides of the tank body, so that the line segment formed by the two sets of focus lines of the head and the line segment formed by the two sets of focus lines of the tank body are parallel to each other, thereby accurately determining the angular positioning of the head relative to the tank body.

[0062] Preferably, the welding device comprises a lifting upright pole 3, the bottom of which is provided with an electric track 17 for driving the lifting upright pole 3 to move forward and backward, a sliding rod 4 is fixedly provided on the front side of the lifting upright pole 3, a sleeve 5 is slidably provided on the sliding rod 4, a first spring 401 is provided between the sleeve 5 and the lifting upright pole 3, one end of the first spring 401 is connected to the lifting upright pole 3, and the other end is connected to the sleeve 5, a support rod 601 is fixedly connected to the front side of the sleeve 5, and an operating panel 6 is fixedly connected to the other end of the support rod 601; a fine-tuning electric drive rod 603 is fixedly provided on the top of the operating panel 6, a longitudinal plate 602 is fixedly provided on the top of the fine-tuning electric drive rod 603, and a welding assembly 8 is provided on the front side of the longitudinal plate 602; a horizontal pulley assembly 7 is also provided at the center of the front side of the operating panel 6, and a limit plate 402 is provided on the end of the sliding rod 4 away from the lifting upright pole 3;

[0063] A damping pad 501 is provided on the inner periphery of the collar 5, and the collar 5 is sleeved on the slide bar 4 through the damping pad 501 to prevent the collar 5 from shaking due to slight vibration generated when the first spring 401 is deformed, thereby ensuring the stability of the collar 5;

[0064] The lifting pole 3 includes a bottom pole 301, the bottom of the bottom pole 301 is slidably matched with the electric track 17, the top of the bottom pole 301 is fixedly provided with a first electric push rod 302, the top of the first electric push rod 302 is fixedly provided with a top pole 303, and the front side of the top pole 303 is fixedly connected to the slide bar 4;

[0065] The welding assembly 8 includes a second electric push rod 801, which is fixedly sleeved on the longitudinal plate 602, and a welding gun 802 is fixedly connected to the end of the second electric push rod 801 near the movable end of the hanger side, and a support frame is provided on the top of the longitudinal plate 602, and an electric welder 803 is provided on the support frame, and the electric welder 803 is electrically connected to the welding gun 802;

[0066] In this embodiment, after the end cap and the tank body are docked, the first electric push rod 302 is first started for rough adjustment, and then the fine adjustment electric drive rod 603 is started for fine adjustment to control the longitudinal plate 602 to move up and down, so that the welding gun 802 on the operating panel 6 is moved to the same height as the docking point of the end cap and the tank body, and then the pulley assembly 7 on the operating panel 6 is driven by the electric track 17 to abut against the outer periphery of the tank body to deform and store energy of the first spring 401;

[0067] After that, the second electric push rod 801 is started to push the welding gun 802 close to the joint position between the end cap and the tank body for welding; during the welding process, the driving device drives the turntable 2 to rotate, thereby rotating the tank body; since the fourth electric push rod 13 continuously presses the end cap against the top of the tank body through the electric suction cup 14, the rotation of the tank body can drive the end cap to move synchronously; the welding gun 802 can perform full circumferential welding on the joint between the end cap and the tank body;

[0068] In particular, for an elliptical tank body, when the tank body rotates, the first spring 401 uses its own elasticity to ensure that the pulley assembly 7 always slides in close contact with the outer surface of the tank body, so that the welding gun 802 can automatically adjust the distance between the tank body and maintain a consistent welding spacing without manual intervention. This method not only significantly improves the welding efficiency, but also improves the welding quality.

[0069] Preferably, the pulley assembly 7 includes a lower pulley bracket 701, which is fixedly arranged on the front side of the operating panel 6, a fixed pulley 702 is rotatably arranged on the other end of the lower pulley bracket 701, and a receiver 703 is arranged on the top of the lower pulley bracket 701; an elastic telescopic rod 704 is fixedly arranged on the front side of the longitudinal plate 602, an upper pulley bracket 705 is fixedly arranged on the other end of the elastic telescopic rod 704, a movable pulley 706 is rotatably arranged on the other end of the upper pulley bracket 705, the movable pulley 706 is located on the upper side of the welding gun 802, and a laser emitter 707 is arranged on the top of the upper pulley bracket 705; the laser emitter 707 and the laser receiver 703 are both electrically connected to the control system;

[0070] A mounting seat 19 is also fixedly provided on the front side of the operating panel 6. A cleaning roller 20 for cleaning the joint between the tank body and the end cap is rotatably connected to the top of the mounting seat 19. The cleaning roller 20 is provided with bristles. A first transmission wheel for driving the cleaning roller 20 to rotate is provided at the bottom of the mounting seat 19. A second transmission wheel that rotates synchronously with the fixed pulley 702 is provided on the lower pulley bracket 701. The same set of transmission belts 21 are sleeved between the first transmission wheel and the second transmission wheel.

[0071] In this embodiment, the docking accuracy of the tank body and the end cap is first detected before welding; specifically, after the end cap and the tank body are docked, the first electric push rod 302 is first started for coarse adjustment, and then the fine adjustment electric drive rod 603 is started for fine adjustment to control the vertical plate 602 to move up and down, so that the welding gun 802 on the operating panel 6 is moved to the same height of the docking point between the end cap and the tank body; at this time, the fixed pulley 702 is located at the lower side of the docking point, and the movable pulley 706 is located at the upper side of the docking point; thereafter, the fixed pulley 702 and the movable pulley 706 on the operating panel 6 are driven by the electric track 17 to abut against the outer periphery of the tank body and the end cap respectively, so that the first spring 401 is deformed and stores energy; before welding, the driving device is first started to drive the turntable 2 to rotate so that the tank body rotates one circle;

[0072] The relative movement between the movable pulley 706 and the fixed pulley 702 can be determined by using the position of the laser transmitter 707 received by the receiver 703; by determining whether the movable pulley 706 and the fixed pulley 702 move relative to each other, it can be intuitively determined whether the end cap and the tank body are successfully docked;

[0073] If the tank body and the end cap are successfully docked, when the fixed pulley 702 and the movable pulley 706 rotate along the outer wall of the tank body and the end cap for one circle, the movable pulley 706 and the fixed pulley 702 will always remain relatively still; it is determined that the tank body and the end cap are successfully docked; the welding assembly 8 is started to weld the docking point;

[0074] If the tank body and the end cap are successfully docked, when the fixed pulley 702 and the movable pulley 706 rotate along the outer wall of the tank body and the end cap for one circle, the movable pulley 706 and the fixed pulley 702 will move relative to each other; it is determined that the end cap and the tank body have failed to dock; the subsequent welding process is canceled, and the tank body and the end cap are separated and docked again;

[0075] In addition, by setting up the cleaning roller 20, during the process of detecting the docking accuracy between the tank body and the head, the rotation generated by the fixed pulley 702 moving around the outer periphery of the tank body is used to drive the second transmission wheel to rotate, and the second transmission wheel drives the first transmission wheel to rotate through the transmission belt 21, thereby driving the cleaning roller 20 to rotate. After the cleaning roller 20 rotates, it can clean the docking point through its own bristles, thereby improving the welding effect.

[0076] Preferably, a transverse slide groove 1101 is provided at the bottom of the crossbeam 11, the inner wall of the slide groove 1101 is slidably connected to a slider 1102, a round rod 1103 is fixedly connected to the bottom of the slider 1102, and the bottom of the round rod 1103 is rotatably connected to the top of the hanging plate 12;

[0077] Preferably, the driving assembly includes a motor 101, and the inner cavity of the bottom plate 1 is provided with an output rod at the top of the motor 101, which passes through the top of the bottom plate 1 and is fixedly connected to the bottom center of the turntable 2; starting the motor 101 can drive the turntable 2 to rotate, thereby driving the tank on the turntable 2 to rotate;

[0078] Preferably, the cleaning roller 20 comprises a hollow rod 2001, the bottom of which is connected to a hollow roller shaft 2005, which is rotatably connected to the mounting seat 19 and fixedly connected to the first transmission wheel; a fixed half shell 2002 is fixedly sleeved on one side of the outer periphery of the hollow rod 2001, a vent hole 2006 is provided on the outer periphery of the hollow rod 2001 on a side symmetrical to the fixed half shell 2002 and a movable half shell 2004 is movably provided, the two ends of the movable half shell 2004 abut against the two ends of the fixed half shell 2002, and bristles are provided on the outer peripheries of the movable half shell 2004. An air bag 2003 is arranged on the inner periphery of the half shell 2002, and the air inlet of the air bag 2003 is connected with the air vent 2006; wherein, movable grooves 2007 are respectively arranged at both ends of the fixed half shell 2002, and sliding rods 2008 adapted to the movable grooves 2007 are respectively arranged at both ends of the movable half shell 2004, and a limiting groove is arranged in the movable groove 2007, and a slider 1102 adapted to the limiting groove is arranged on the sliding rod 2008, and a connecting spring 2009 is arranged in the movable groove 2007, and one end of the connecting spring 2009 is connected to the sliding rod 2008, and the other end is connected to the movable groove 2007;

[0079] An air pump 22 is fixedly arranged on the operation panel 6, and an air pipe 2201 is arranged on the operation panel 6. One end of the air pipe 2201 passes through the bottom of the roller shaft 2005 to the inside of the roller shaft 2005 and passes through the hollow rod 2001, and the other end of the air pipe 2201 is connected to the air pump 22.

[0080] A distance sensor 23 is fixedly connected to one side of the mounting seat 19 to measure the distance from the end cap; the distance sensor 23 is electrically connected to the air pump 22 to control the opening and closing of the air pump 22;

[0081] Specifically, during use, when the welding gun 802 is working, the distance sensor 23 monitors the distance to the end cap; since the end cap is elliptical, when welding a smaller end cap, the narrow ends of the end cap abut against the fixed pulley 702, and the cleaning roller 20 is at the farthest distance from the end cap, making it difficult to effectively clean the weld of the end cap. At this time, when the distance sensor 23 detects that the distance to the end cap is far, it sends a working signal to the air pump 22, and the air pump 22 inflates the hollow rod 2001 through the inflation tube 2201, and inflates the air bag 2003 through the vent hole 2006 on the hollow rod 2001, so that the air bag 2003 is inflated and expanded. 03 Push the movable half shell 2004 outward so that the bristles of the movable half shell 2004 contact the head to clean the weld of the head. At this time, the movable half shell 2004 drives the sliding rod 2008 to move outward and causes the connecting spring 2009 to deform and store energy. When the fixed pulley 702 moves out from the narrow ends of the head, the distance sensor 23 detects that the distance from the head becomes smaller. At this time, the distance sensor 23 sends a stop signal to the inflation pump 22, and the energy stored in the connecting spring 2009 is released to pull the sliding rod 2008 to reset and reset the movable half shell 2004, and squeeze the gas in the airbag 2003 outward through the gap between the vent pipe and the roller 2005.

[0082] The special-shaped head welding device provided by the present invention can realize precise angle and position adjustment between the elliptical head and the tank body by means of the main positioning fixture 15 and the auxiliary positioning fixture 16; when the four sets of auxiliary positioning fixtures 16 are fixed to the outer periphery of the elliptical tank body, the angle of the head can be fine-tuned to ensure that the two sets of focal lines of the head are parallel and aligned with the corresponding focal lines of the tank body; when the four sets of main positioning fixtures 15 are also fixed to the outer periphery of the tank body, the front, back, left, and right positions of the head can be fine-tuned until the head and the tank body are completely aligned in the horizontal direction, thereby quickly and accurately completing the positioning of the head; in addition, by means of the provided collar 5, the first spring 401 and the pulley block Component 7, for special-shaped tank bodies such as elliptical ones, when they rotate, the first spring 401 uses its own elastic effect to ensure that the pulley assembly 7 always slides in close contact with the outer surface of the tank body; the welding gun 802 can automatically adjust the distance between it and the tank body to maintain a consistent welding spacing without manual intervention, which significantly improves the welding efficiency and the welding quality; the device can realize automatic positioning of the head and the tank body to ensure accurate docking between the two; at the same time, the device does not need to manually adjust the distance between the welding gun 802 and the tank body, thereby realizing an automated welding process; it not only improves work efficiency, but also ensures the consistency and reliability of welding quality.

[0083] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0084] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A special-shaped head welding device, comprising a bottom plate (1), a turntable (2) for placing a tank body is arranged on the bottom plate (1), and a driving component for driving the turntable (2) to rotate is arranged inside the bottom plate (1), characterized in that: A lifting device for lifting the special-shaped head is also provided on the top of the bottom plate (1), and a welding device for welding the head is provided on one side of the lifting device; The sling comprises a crossbeam (11), and liftable columns (9) are symmetrically arranged at the bottom of both ends of the crossbeam (11) for driving the crossbeam (11) to move in the vertical direction. The columns (9) are slidably arranged on the top of the bottom plate (1), and the sling can move forward and backward on the bottom plate (1); a slider (1102) is slidably arranged at the bottom of the crossbeam (11), and an elliptical hanging plate (12) is rotatably arranged at the bottom of the slider (1102), and the hanging plate (12) can slide left and right relative to the crossbeam (11); A fourth electric push rod (13) is arranged at the center of the bottom of the hanging plate (12), and an electric suction cup (14) for adsorbing and fixing the end cap is arranged at the bottom of the fourth electric push rod (13); main positioning fixtures (15) are symmetrically arranged at the front, back, left and right ends of the bottom of the hanging plate (12); after the four groups of main positioning fixtures (15) clamp the outer periphery of the tank body, the horizontal and longitudinal positions of the end cap can be positioned in accordance with the tank body; auxiliary positioning fixtures (16) are symmetrically arranged on the front and back sides of the two groups of focal points at the bottom of the hanging plate (12); after the auxiliary positioning fixtures (16) clamp the outer periphery of the tank body, the angle of the end cap can be positioned in accordance with the tank body.

2. The special-shaped head welding device according to claim 1 is characterized in that: The upright column (9) comprises a bottom column (901), a third electric push rod (902) is arranged on the top of the bottom column (901), and the top of the third electric push rod (902) is fixedly connected to the bottom of the crossbeam (11).

3. The special-shaped head welding device according to claim 2 is characterized in that: Two groups of slide rails (10) are symmetrically arranged on the bottom plate (1), and the two groups of slide rails (10) are arranged longitudinally. The two groups of slide rails (10) are respectively slidably matched with the bottoms of the two groups of bottom columns (901).

4. The special-shaped head welding device according to claim 1, characterized in that: The main positioning fixture (15) comprises a first electric telescopic rod (1501), the top of the first electric telescopic rod (1501) is fixedly connected to the bottom of the hanging plate (12), the bottom of the first electric telescopic rod (1501) is fixedly provided with a first mounting block (1502), a fifth electric push rod (1503) is fixedly sleeved inside the first mounting block (1502), and a positioning plate (1504) is fixedly provided at the movable end of the fifth electric push rod (1503) close to the electric suction cup (14).

5. The special-shaped head welding device according to claim 4 is characterized in that: A receiving groove (1505) is provided on one side of the positioning plate (1504) close to the electric suction cup (14); an elastic plate (1506) is rotatably provided at the top of the inner cavity of the receiving groove (1505); a supporting spring (1507) is provided between the elastic plate (1506) and the receiving groove (1505); one end of the supporting spring (1507) is connected to the elastic plate (1506), and the other end is connected to the groove wall of the receiving groove (1505).

6. The special-shaped head welding device according to claim 1, characterized in that: The auxiliary positioning fixture (16) comprises a second electric telescopic rod (1601), the top of the second electric telescopic rod (1601) is fixedly connected to the bottom of the hanging plate (12), the bottom of the second electric telescopic rod (1601) is fixedly provided with a second mounting block (1602), a sixth electric push rod (1603) is fixedly sleeved inside the second mounting block (1602), and the movable end of the sixth electric push rod (1603) close to the electric suction cup (14) is movably connected with a clamping plate (1604).

7. The special-shaped head welding device according to claim 1, characterized in that: The welding device comprises a lifting rod (3), the bottom of the lifting rod (3) is provided with an electric track (17) for driving the lifting rod (3) to move forward and backward, a sliding rod (4) is fixedly provided on the front side of the lifting rod (3), a sleeve (5) is slidably sleeved on the sliding rod (4), a first spring (401) is provided between the sleeve (5) and the lifting rod (3), one end of the first spring (401) is connected to the lifting rod (3), and the other end is connected to the sleeve (5), and the front side of the sleeve (5) is fixedly connected to A support rod (601), the other end of which is fixedly connected to an operating panel (6); a fine-tuning electric drive rod (603) is fixedly arranged on the top of the operating panel (6), a longitudinal plate (602) is fixedly arranged on the top of the fine-tuning electric drive rod (603), and a welding assembly (8) is arranged on the front side of the longitudinal plate (602); a horizontal pulley assembly (7) is also arranged at the center of the front side of the operating panel (6), and a limit plate (402) is arranged on one end of the slide rod (4) away from the lifting vertical rod (3).

8. The special-shaped head welding device according to claim 7, characterized in that: The pulley assembly (7) comprises a lower pulley bracket (701), wherein the lower pulley bracket (701) is fixedly arranged on the front side of the operating panel (6), a fixed pulley (702) is rotatably arranged on the other end of the lower pulley bracket (701), and a receiver (703) is arranged on the top of the lower pulley bracket (701); an elastic telescopic rod (704) is fixedly arranged on the front side of the longitudinal plate (602), an upper pulley bracket (705) is fixedly arranged on the other end of the elastic telescopic rod (704), a movable pulley (706) is rotatably arranged on the other end of the upper pulley bracket (705), and a laser transmitter (707) is arranged on the top of the upper pulley bracket (705).

9. The special-shaped head welding device according to claim 7, characterized in that: The welding assembly (8) includes a second electric push rod (801), the second electric push rod (801) is fixedly sleeved on the longitudinal plate (602), the end of the second electric push rod (801) close to the movable end of the lifting device is fixedly connected to a welding gun (802), a support frame is arranged on the top of the longitudinal plate (602), an electric welder (803) is arranged on the support frame, and the electric welder (803) is electrically connected to the welding gun (802).

10. The special-shaped head welding device according to claim 8, characterized in that: A mounting seat (19) is also fixedly provided on the front side of the operating panel (6); a cleaning roller (20) for cleaning the joint between the tank body and the end cap is rotatably connected to the top of the mounting seat (19); bristles are provided on the cleaning roller (20); a first transmission wheel for driving the cleaning roller (20) to rotate is provided at the bottom of the mounting seat (19); a second transmission wheel that rotates synchronously with the fixed pulley (702) is provided on the lower pulley bracket (701); and a same set of transmission belts (21) are sleeved between the first transmission wheel and the second transmission wheel.

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