Welding device for barrel

Abstract

The utility model relates to the technical field of welding, and particularly discloses a welding device for a barrel. According to the barrel welding device, the arranged supporting mechanism can support the barrel, the barrel is arranged on the supporting mandrel in a sleeved mode by moving in the first direction, automatic feeding of the barrel is achieved, after welding of the barrel is completed, the supporting mechanism moves in the first direction to enable the barrel to be separated from the supporting mandrel, and the barrel can be automatically welded. Automatic discharging of the barrel is achieved, and then manual barrel carrying is replaced; the first welding assembly is used for conducting filling welding on a welding seam, the second welding assembly is used for conducting remelting welding on the welding seam, air holes in the superficial position of the welding seam overflow, the welding quality is improved, the welding surplus height is reduced, the welding seam width is increased, the welding seam forming is beautified, two procedures can be completed on one device at the same time, the welding efficiency is improved, and the welding period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding device for a cylinder. Background Art

[0002] The longitudinal seam of the aluminum alloy cylinder needs to be 100% radiographically inspected after welding. In order to ensure the qualified rate of the longitudinal seam welding flaw detection of the aluminum alloy cylinder, manual / automatic tungsten inert gas welding (no wire welding), filling (wire welding) and capping (remelting) are usually used during welding, which takes a long time to weld and has low production efficiency. In the prior art, in order to solve the above technical problems and improve production efficiency, some use argon arc welding for priming and melt inert gas (MIG) for filling, which improves welding efficiency, but the weld quality stability is poor, and internal defects such as pores and slag inclusions often occur, which does not meet the weld flaw detection grade requirements; some also use variable polarity plasma arc welding (PAW), which can be completed by one or two welding passes, with high production efficiency, but the production equipment and key accessories are expensive, and the equipment maintenance cost is high. Utility Model Content

[0003] The utility model aims to provide a cylinder welding device with high production efficiency, high welding quality, good welding stability and low use cost of the welding equipment.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] The welding device of the cylinder comprises:

[0006] A base, wherein a supporting column is provided on the base;

[0007] A supporting mandrel, one end of which is connected to the supporting column;

[0008] A support mechanism, the support mechanism includes a lifting assembly and a support platform assembly connected to the lifting assembly, the support platform assembly is used to support the cylinder, the lifting assembly is slidably arranged on the base along a first direction, and the lifting assembly is used to drive the support platform assembly to lift and lower along a second direction and move along the first direction, so that the cylinder is sleeved on the support core shaft;

[0009] The welding mechanism includes a moving component, on which a first welding component and a second welding component for welding a cylinder weld are provided. The moving component is used to drive the first welding component and the second welding component to move along a first direction, the first welding component is used to perform fill welding on the weld, and the second welding component is used to perform remelting welding on the weld.

[0010] As an optional technical solution for the above-mentioned cylinder welding device, the support platform assembly includes a support platform, one side of the support platform is connected to the lifting assembly, and the other side of the support platform is provided with a roller group driving component and two support roller groups spaced apart along a third direction, the roller group driving component is used to drive at least one of the support roller groups to move along the third direction to adjust the spacing between the two support roller groups, and the two support roller groups are used to support the cylinder.

[0011] As an optional technical solution for the above-mentioned cylinder welding device, the lifting assembly includes a lifting chassis and a lifting frame, one side of the lifting chassis is slidably connected to the base, the other side of the lifting chassis is connected to one end of the lifting frame, and the other end of the lifting frame is connected to the support platform assembly.

[0012] As an optional technical solution for the above-mentioned welding device of the cylinder, the surface of the supporting core shaft in contact with the cylinder is an arcuate surface matching the cylinder, the arcuate surface is provided with a groove along the first direction, a gasket is provided in the groove, a receiving groove is provided on the gasket, the gasket is used to support the cylinder, and the receiving groove is used to correspond to the welding groove of the cylinder, the groove is built in the gasket and preheating parts are respectively provided on both sides, the preheating parts are used to contact with the cylinder and heat the cylinder.

[0013] As an optional technical solution of the above-mentioned welding device for the cylinder, the preheating element is detachably arranged in the groove, and a plurality of the preheating elements are provided, and the plurality of preheating elements are sequentially arranged in the groove along the first direction; and / or

[0014] The gasket is detachably disposed in the groove, and a plurality of the gaskets are provided, and the plurality of gaskets are sequentially disposed in the groove along a first direction.

[0015] As an optional technical solution for the welding device of the above-mentioned cylinder, the support core shaft is provided with at least two pressure plates on one side of the arc surface, at least two of the pressure plates are arranged on both sides of the accommodating groove, and at least two of the pressure plates are connected to a pressure plate driving member, and the pressure plate driving member is used to drive at least two of the pressure plates to move toward the support core shaft to press the cylinder against the support core shaft.

[0016] As an optional technical solution of the above-mentioned welding device for the cylinder, the first welding assembly includes:

[0017] A first welding gun clamping member, used for clamping a first welding gun;

[0018] A first swinging member, connected to the first welding gun clamping member, and the first swinging member is used to drive the first welding gun clamping member to swing along a third direction;

[0019] The first lifting driving member is arranged on the moving assembly, the first swinging member is connected to the first lifting driving member, and the first lifting driving member is used to drive the first swinging member to rise and fall along the second direction.

[0020] As an optional technical solution for the above-mentioned cylinder welding device, the first welding assembly also includes a first wire feeder, which is arranged on the moving assembly, and the moving assembly is used to drive the first wire feeder and the first lifting drive member to move simultaneously along the first direction, and the first wire feeder is used to provide solder for the first welding gun.

[0021] As an optional technical solution of the above-mentioned welding device for the cylinder, the second welding assembly includes:

[0022] A second welding gun clamping member, used for clamping a second welding gun;

[0023] a second swinging member connected to the second welding gun clamping member, the second swinging member being used to drive the second welding gun clamping member to swing along a third direction;

[0024] The second lifting driving member is arranged on the moving assembly, the second swinging member is connected to the second lifting driving member, and the second lifting driving member is used to drive the second swinging member to rise and fall along the second direction.

[0025] As an optional technical solution for the above-mentioned cylinder welding device, the second welding assembly also includes a second wire feeder, which is arranged on the moving assembly, and the moving assembly is used to drive the second wire feeder and the second lifting drive member to move simultaneously along the first direction, and the second wire feeder is used to provide solder for the second welding gun.

[0026] Beneficial effects of the utility model:

[0027] The utility model provides a welding device for a cylinder, wherein a supporting mechanism is arranged to support the cylinder, and the cylinder is sleeved on a supporting core shaft by moving along a first direction, thereby realizing automatic loading of the cylinder. After the welding of the cylinder is completed, the supporting mechanism moves along the first direction to separate the cylinder from the supporting core shaft, thereby realizing automatic unloading of the cylinder, thereby replacing manual handling of the cylinder. A supporting platform component for supporting the cylinder can adjust its height under the drive of a lifting component, so that the position of the cylinder on the supporting platform component in a second direction can correspond to the supporting core shaft, thereby ensuring that the cylinder can be accurately sleeved on the supporting core shaft; the welding mechanism comprises a first welding component and a second welding component, and the moving component can drive the two welding components to move, the first welding component is used for filling welding of the weld, and the second welding component is used for remelting welding of the weld, so that the pores at the shallow surface of the weld overflow, thereby improving the welding quality, reducing the welding excess height, increasing the weld width, beautifying the weld forming, and simultaneously completing two processes on one device, thereby improving the welding efficiency and shortening the welding cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view of a welding device for a cylinder provided in an embodiment of the utility model;

[0029] Figure 2 It is a right side view of the support mechanism, cylinder and support mandrel provided by the embodiment of the utility model;

[0030] Figure 3 It is a right side view of the cooperation between the supporting mandrel, the pressing plate and the cylinder provided in the embodiment of the utility model;

[0031] Figure 4 It is a schematic diagram of the cooperation between the cylinder and the liner provided in the embodiment of the utility model;

[0032] Figure 5 It is a right side view of a first welding assembly and a second welding assembly provided in an embodiment of the utility model;

[0033] Figure 6 It is a top view of the first welding assembly and the second welding assembly provided in an embodiment of the utility model.

[0034] In the figure:

[0035] 1. Base; 2. Support column; 3. Support mandrel; 4. Support mechanism; 5. Welding mechanism; 6. Press plate; 7. Press plate driving member;

[0036] 31. groove; 32. gasket; 33. receiving groove; 34. preheating element;

[0037] 41. lifting assembly; 411. lifting chassis; 412. lifting frame; 42. supporting platform assembly; 421. supporting platform; 422. supporting roller assembly; 4221. roller; 4222. roller mounting seat;

[0038] 51. Moving assembly; 511. Guide plate; 512. Guide rail; 513. Connecting plate; 52. First welding assembly; 521. First welding gun clamp; 5211. Clamping part; 522. First welding gun; 523. First swinging member; 524. First lifting driving member; 525. First wire feeder; 53. Second welding assembly; 531. Second welding gun clamp; 532. Second welding gun; 533. Second swinging member; 534. Second lifting driving member; 535. Second wire feeder; 54. Control assembly;

[0039] 100. Cylinder body; 101. Welding groove. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] This embodiment provides a welding device for a cylinder. The cylinder to be welded has a weld along its axial direction, and the welding device is used to weld the longitudinally arranged weld.

[0045] Specifically, Figure 1 As shown, the welding device of the cylinder includes a base 1, a support mandrel 3, a support mechanism 4 and a welding mechanism 5. A support column 2 is provided on the base 1, and one end of the support mandrel 3 is connected to the support column 2. The support mechanism 4 includes a lifting assembly 41 and a support platform assembly 42 connected to the lifting assembly 41, the support platform assembly 42 is used to support the cylinder 100, the lifting assembly 41 is slidably arranged on the base 1 along the first direction, the lifting assembly 41 is used to drive the support platform assembly 42 to lift and lower along the second direction and move along the first direction, so that the cylinder 100 on the support platform assembly 42 is sleeved on the support mandrel 3. The welding mechanism 5 includes a moving assembly 51, and a first welding assembly 52 and a second welding assembly 53 for welding the weld of the cylinder 100 are provided on the moving assembly 51, and the moving assembly 51 is used to drive the first welding assembly 52 and the second welding assembly 53 to move along the first direction, the first welding assembly 52 is used to fill the weld, and the second welding assembly 53 is used to remelt the weld.

[0046] The barrel welding device provided in this embodiment is provided with a support mechanism 4 capable of supporting the barrel 100, and the barrel 100 is sleeved on the support core shaft 3 by moving along the first direction, thereby realizing automatic loading of the barrel 100. After the barrel 100 is welded, the support mechanism 4 moves along the first direction to separate the barrel 100 from the support core shaft 3, thereby realizing automatic unloading of the barrel 100, thereby replacing manual handling of the barrel 100. The support platform assembly 42 for supporting the barrel 100 can adjust its height under the drive of the lifting assembly 41, so that the barrel 100 on the support platform assembly 42 is at the first The positions in the two directions can correspond to the supporting core shaft 3, ensuring that the cylinder 100 can be accurately sleeved on the supporting core shaft 3; the welding mechanism 5 includes a first welding component 52 and a second welding component 53, and the moving component 51 can drive the two welding components to move. The first welding component 52 is used for filling welding of the weld, and the second welding component 53 is used for remelting welding of the weld, so that the pores at the shallow surface of the weld overflow, improve the welding quality, reduce the welding excess height, increase the weld width, beautify the weld formation, and can complete two processes on one device at the same time, thereby improving the welding efficiency and shortening the welding cycle.

[0047] like Figure 1 and Figure 2 As shown, the support platform assembly 42 is used to support the cylinder 100. In some embodiments, the support platform assembly 42 includes a support platform 421, one side of the support platform 421 is connected to the lifting assembly 41, and the other side of the support platform 421 is provided with a roller group driving member and two support roller groups 422 (the roller group driving member is not shown in the figure) arranged at intervals along the third direction. The roller group driving member is used to drive at least one support roller group 422 to move along the third direction to adjust the spacing between the two support roller groups 422. The two support roller groups 422 are used to support the cylinder 100. The spacing between the two support roller groups 422 is adjustable to facilitate supporting cylinders 100 of different sizes, and the spacing between the two support roller groups 422 is automatically adjusted by the roller group driving member.

[0048] Further optionally, the roller group driving member is connected to one of the supporting roller groups 422, the supporting roller group 422 is slidably arranged on the supporting platform 421, and the other supporting roller group 422 is fixedly arranged on the supporting platform 421. The roller group driving member includes a screw rod, a nut and a driving motor, the screw rod extends along the third direction, both ends of the screw rod are rotatably arranged on the supporting platform 421, one end of the screw rod is connected to the output shaft of the driving motor, the driving motor is fixedly arranged on the supporting platform 421, the nut is screwed to the screw rod, and the nut is connected to the supporting roller group 422. The driving motor drives the screw rod to rotate, and the rotation of the screw rod drives the nut to move along the third direction, thereby driving the supporting roller group 422 to slide along the third direction, so as to adjust the distance between the two supporting roller groups 422. In some other practicable embodiments, the roller group driving member includes a rack, a gear and a driving motor, the rack is slidably disposed on the support platform 421 along the third direction, and the rack is connected to the support roller group 422 slidably disposed on the support platform 421, the gear is connected to the output shaft of the driving motor, the driving motor is fixedly disposed on the support platform 421, and the gear is meshed with the rack. The driving motor drives the gear to rotate, driving the rack to slide along the third direction, thereby driving the support roller group 422 to slide along the third direction, so as to adjust the distance between the two support roller groups 422.

[0049] The roller group drive member can also be connected to the two supporting roller groups 422. Specifically, the two supporting roller groups 422 are respectively slidably arranged on the supporting platform 421 along the third direction. The roller group drive member includes a driving motor, a screw rod and two screw nuts. The screw rod extends along the third direction. Both ends of the screw rod are rotatably arranged on the supporting platform 421. One end of the screw rod is connected to the output shaft of the driving motor. The driving motor is fixedly arranged on the supporting platform 421. The screw rod has two threads with different rotation directions. One screw nut is screwed with one of the threads of the screw rod, and the screw nut is connected to one of the supporting roller groups 422. The other screw nut is screwed with another thread of the screw rod, and the screw nut is connected to the other supporting roller group 422. The driving motor drives the screw rod to rotate. The rotation of the screw rod drives the two screw nuts to approach or move away from each other along the third direction, thereby driving the two supporting roller groups 422 to approach or move away from each other along the third direction, so as to adjust the spacing between the two supporting roller groups 422.

[0050] The supporting roller set 422 includes at least one roller 4221, the axial direction of the roller 4221 is the first direction, and the roller 4221 can rotate relative to the supporting platform 421, so as to adjust the position of the cylinder 100 on the supporting roller set 422, so that the weld of the cylinder 100 faces one side of the welding mechanism 5. The supporting roller set 422 also includes a roller mounting seat 4222, the roller mounting seat 4222 is slidably connected or fixedly connected to the supporting platform 421, and the roller 4221 is rotatably arranged on the roller mounting seat 4222. Optionally, a plurality of rollers 4221 can be provided, and the plurality of rollers 4221 are rotatably arranged on the roller mounting seat 4222 along the first direction, so as to provide a plurality of support points for supporting the cylinder 100, thereby improving the stability of supporting the cylinder 100.

[0051] In some embodiments, the lifting assembly 41 includes a lifting chassis 411 and a lifting frame 412. One side of the lifting chassis 411 is slidably connected to the base 1. Specifically, a slider is provided on one side of the lifting chassis 411, and the base 1 is provided with a slide rail along the first direction, and the slider is slidably provided on the slide rail. The other side of the lifting chassis 411 is connected to one end of the lifting frame 412, and the other end of the lifting frame 412 is connected to the support platform assembly 42. The lifting frame 412 can be a hydraulic scissor-type lifting frame. The structure of the hydraulic scissor-type lifting frame is a prior art. It can drive the support platform assembly 42 to rise or fall under the action of hydraulic drive, so that the cylinder 100 on the support platform assembly 42 is correspondingly arranged with the support core shaft 3, so that the cylinder 100 can be sleeved on the support core shaft 3.

[0052] After the support mechanism 4 moves along the first direction to allow the cylinder 100 to be sleeved on the support core shaft 3, the support mechanism 4 preferably does not move anymore, which not only supports the cylinder 100, but also allows the cylinder 100 to be separated from the support core shaft 3 after the welding of the cylinder 100 is completed, thereby completing the unloading, saving processing time and improving processing efficiency.

[0053] Reference Figure 1 , Figure 3 and Figure 4 As shown, the cylinder 100 is sleeved on the supporting core shaft 3. Due to the gravity of the cylinder 100, the cylinder 100 contacts the upper surface of the supporting core shaft 3. The supporting mechanism 4 supports the cylinder 100 but makes the cylinder 100 contact the upper surface of the supporting core shaft 3. The weld of the cylinder 100 is set upward, and the first welding assembly 52 and the second welding assembly 53 used for welding the weld of the cylinder 100 are set corresponding to the weld.

[0054] In order to ensure the welding quality, the support mandrel 3 needs to effectively support the side of the cylinder 100 with the weld. Therefore, the surface of the support mandrel 3 in contact with the cylinder 100 is an arc surface matching the cylinder 100, and the arc surface is concavely provided with a groove 31 along the first direction, and a gasket 32 ​​is provided in the groove 31, and a receiving groove 33 is provided on the gasket 32. The gasket 32 ​​is used to support the cylinder 100, and the receiving groove 33 is used to correspond to the welding groove 101 of the cylinder 100. During welding, the receiving groove 33 can accommodate molten solder to avoid the solder overflowing at the welding groove 101 and affecting the aesthetics of welding. The solder in the receiving groove 33 can be condensed and formed at the weld inside the cylinder 100, thereby improving the welding quality and reliability of the cylinder 100.

[0055] Preheating parts 34 are respectively arranged on both sides of the groove 31 built into the gasket 32. The preheating parts 34 are in contact with the cylinder 100 and are used to heat the cylinder 100. The heat of the preheating parts 34 is transferred to the cylinder 100, and the heat is transferred to the area of ​​the cylinder 100 near the weld. After the temperature of the cylinder 100 reaches the preheating temperature, welding is started to improve the welding efficiency and welding quality of the weld. The preheating parts 34 are connected to the controller through a cable. According to the wall thickness of the cylinder 100, the ambient temperature during welding, the ambient humidity during welding, etc., the controller selects a suitable preheating program or selects a suitable preheating temperature and time, controls the preheating parts 34 to heat, and starts welding after the temperature of the cylinder 100 reaches the preheating temperature. Since the temperature heated by the preheating parts 34 is transferred from the inside of the cylinder 100 to the outside, and welding is performed from the outside of the cylinder 100, therefore, in order to more accurately make the temperature of the outside of the cylinder 100 reach the preheating temperature, a temperature sensor can be arranged on the outside of the cylinder 100, and welding is started after the temperature sensed by the temperature sensor reaches the preheating temperature.

[0056] Further optionally, the preheating member 34 is detachably disposed in the groove 31, and a plurality of preheating members 34 are provided, and the plurality of preheating members 34 are sequentially disposed in the groove 31 along the first direction. The number of preheating members 34 can be set according to the length of the barrel 100. When the preheating member 34 heats the barrel 100, setting the number of preheating members 34 according to the length of the barrel 100 can save energy, and also facilitate the replacement of a single preheating member 34, thereby saving costs.

[0057] The liner 32 is detachably disposed in the groove 31. A plurality of liners 32 are provided, and the plurality of liners 32 are sequentially disposed in the groove 31 along the first direction. The number of liners 32 can be set according to the length of the barrel 100, and it is also convenient to replace a single liner 32, saving costs.

[0058] When welding the weld, in order to ensure that the cylinder 100 does not move and ensure the welding quality, at least two pressing plates 6 are provided on the side of the support mandrel 3 with the arc surface, at least two pressing plates 6 are arranged on both sides of the receiving groove 33, and at least two pressing plates 6 are connected with a pressing plate driving member 7, which is used to drive at least two pressing plates 6 to move toward the support mandrel 3 to press the cylinder 100 on the support mandrel 3 to avoid displacement of the cylinder 100 during welding and affect the welding quality. Multiple pressing plates 6 are driven by a pressing plate driving member 7 to ensure that multiple pressing plates 6 can press on the cylinder 100 at the same time and make the cylinder 100 evenly stressed. The pressing plate driving member 7 can be a hydraulic cylinder or a cylinder, etc., which is not specifically limited here. The side surface of the pressing plate 6 that contacts the cylinder 100 matches the shape of the surface of the cylinder 100. The length of the pressing plate 6 can be less than or equal to the length of the cylinder 100 along the axial direction.

[0059] In order to reduce the weight of the supporting core shaft 3 , the middle portion of the supporting core shaft 3 is configured as a hollow structure along the axial direction of the supporting core shaft 3 , and the specific shape of the hollow structure is not specifically limited herein.

[0060] Combination Figure 1 , Figure 5 and Figure 6 As shown, the first welding assembly 52 is used for filling welding of the weld of the cylinder 100, and the second welding assembly 53 is used for remelting welding of the weld. In the present application, the first welding assembly 52 performs melting inert gas shielded welding on the weld of the cylinder 100, and the second welding assembly 53 performs non-melting inert gas shielded welding on the weld, and remelting welding is performed on the part welded by the first welding assembly 52. ​​The first welding assembly 52 and the second welding assembly 53 can move at the same time, and the two work together to complete two processes on one device at the same time, thereby improving welding efficiency. Moreover, the first welding assembly 52 and the second welding assembly 53 can also work separately, thereby improving the flexibility of the use of the welding device. The material of the cylinder 100 can be aluminum alloy or other materials, which are not specifically limited here.

[0061] In some embodiments, the first welding assembly 52 includes a first welding gun clamp 521, a first swinging member 523 and a first lifting driving member 524. The first welding gun clamp 521 is used to clamp the first welding gun 522. The first swinging member 523 is connected to the first welding gun clamp 521, and the first swinging member 523 is used to drive the first welding gun clamp 521 to swing along the third direction. The first lifting driving member 524 is disposed on the moving assembly 51, and the first swinging member 523 is connected to the first lifting driving member 524, and the first lifting driving member 524 is used to drive the first swinging member 523 to rise and fall along the second direction. After the cylinder 100 is sleeved on the supporting mandrel 3, the weld of the cylinder 100 will be set toward the first welding gun 522, but the relative position of the first welding gun 522 and the weld of the cylinder 100 is not accurate. The first welding gun 522 needs to be set directly opposite the weld of the cylinder 100. The position of the first welding gun 522 relative to the weld of the cylinder 100 can be adjusted by the first swinging member 523. The first lifting driving member 524 drives the first swinging member 523 to rise and fall, thereby driving the first welding gun 522 to approach or move away from the weld of the cylinder 100. In some other application scenarios, during the welding process of the first welding gun 522, the first swinging member 523 can drive the first welding gun 522 to swing in a third direction.

[0062] The first welding gun clamp 521 has a clamping portion 5211, which includes a sleeve with an opening, one end of the first welding gun 522 is placed in the sleeve, and the outer wall of the sleeve is provided with fastening plates on both sides of the opening, and the two fastening plates are connected by fastening bolts, thereby reducing the diameter of the sleeve to achieve clamping of the first welding gun 522. Of course, in some other practicable ways, the clamping portion 5211 can also be other structures, which are not specifically limited here.

[0063] The specific structure of the first lifting drive member 524 is not shown in the figure. The first lifting drive member 524 includes a rack, which is fixedly arranged on the moving assembly 51 and extends along the second direction. The first swing member 523 is provided with a connecting sleeve, which is slidably sleeved on the rack, and a gear is provided on the connecting sleeve. The gear is connected to a handle, and the handle is rotatably connected to the connecting sleeve, and the gear is meshed with the rack. Turning the handle drives the gear to rotate, thereby driving the connecting sleeve to move along the extension direction of the rack. This structure requires manual adjustment of the position of the first swing member 523 in the second direction. In some other practicable methods, the first lifting drive member 524 includes a cylinder or a linear motor, etc., to realize automatic adjustment of the position of the first swing member 523 in the second direction. The structure of the first swing member 523 is a prior art and is not described in detail here.

[0064] Further optionally, the first welding assembly 52 also includes a first wire feeder 525, which is disposed on the moving assembly 51, and the moving assembly 51 is used to drive the first wire feeder 525 and the first lifting drive member 524 to move simultaneously along the first direction, and the first wire feeder 525 is used to provide solder to the first welding gun 522, and can ensure that the first wire feeder 525 can timely provide solder to the first welding gun 522. The structure of the first wire feeder 525 is prior art and will not be described in detail herein.

[0065] In some embodiments, the second welding assembly 53 includes a second welding gun clamp 531, a second swinging member 533 and a second lifting driving member 534. The second welding gun clamp 531 is used to clamp the second welding gun 532. The second swinging member 533 is connected to the second welding gun clamp 531, and the second swinging member 533 is used to drive the second welding gun clamp 531 to swing along the third direction. The second lifting driving member 534 is arranged on the moving assembly 51, and the second swinging member 533 is connected to the second lifting driving member 534, and the second lifting driving member 534 is used to drive the second swinging member 533 to rise and fall along the second direction. During the welding process of the second welding gun 532, the second swinging member 533 drives the second welding gun 532 to swing in the third direction to realize remelting welding, reduce the welding excess height, increase the weld width, and beautify the weld forming. The second lifting driving member 534 drives the second swinging member 533 to rise and fall, thereby driving the second welding gun 532 to approach or move away from the weld of the cylinder 100. In some other application scenarios, the second swinging member 533 swings in the third direction to adjust the position of the second welding gun 532 , and after the position of the second welding gun 532 is adjusted, the second welding gun 532 is fixed in the third direction.

[0066] The structure of the second welding gun clamp 531 is the same as that of the first welding gun clamp 521, and it has a clamping portion 5211, which includes a sleeve with an opening, one end of the second welding gun 532 is placed in the sleeve, and the outer wall of the sleeve is provided with fastening plates on both sides of the opening, and the two fastening plates are connected by fastening bolts, thereby reducing the diameter of the sleeve to achieve clamping of the second welding gun 532. Of course, in some other practicable ways, the clamping portion 5211 can also be other structures, which are not specifically limited here.

[0067] The structure of the second lifting drive member 534 is the same as that of the first lifting drive member 524. The second lifting drive member 534 also includes a rack, which is fixedly arranged on the moving assembly 51 and extends along the second direction. The second swing member 533 is provided with a connecting sleeve, which is slidably sleeved on the rack, and a gear is provided on the connecting sleeve. The gear is connected to a handle, and the handle is rotatably connected to the connecting sleeve, and the gear is meshed with the rack. The handle is turned to drive the gear to rotate, thereby driving the connecting sleeve to move along the extension direction of the rack. This structure requires manual adjustment of the position of the second swing member 533 in the second direction. In some other practicable methods, the second lifting drive member 534 includes a cylinder or a linear motor, etc., to realize automatic adjustment of the position of the second swing member 533 in the second direction. The structure of the second swing member 533 is a prior art and is not described in detail here.

[0068] Further optionally, the second welding assembly 53 further includes a second wire feeder 535, which is disposed on the moving assembly 51, and the moving assembly 51 is used to drive the second wire feeder 535 and the second lifting drive member 534 to move simultaneously along the first direction, and the second wire feeder 535 is used to provide solder to the second welding gun 532, and can ensure that the second wire feeder 535 can timely provide solder to the second welding gun 532. The structure of the second wire feeder 535 is prior art and will not be described in detail herein.

[0069] In order to achieve the coordinated operation of the first welding gun 522 and the second welding gun 532 to complete two welding processes at the same time, the first welding gun 522 and the second welding gun 532 are set at an interval of 100mm-150mm. The first welding gun 522 and the second welding gun 532 can be driven by the moving component 51 to move simultaneously in the first direction, so the first welding gun 522 and the second welding gun 532 can move in the same direction at the same speed at the same time. The first welding gun 522 first performs a base welding on the weld, and the second welding gun 532 immediately behind the first welding gun 522 performs a remelting welding on the part welded by the first welding gun 522, so that the pores at the shallow surface of the weld overflow, reduce the welding excess height, increase the weld width, beautify the weld formation, and thereby improve the quality of the weld.

[0070] The above-mentioned moving assembly 51 is a chain sprocket assembly (the chain sprocket assembly is not shown in the figure). Specifically, the moving assembly 51 includes a sprocket drive motor, a chain and two sprockets, the two sprockets are arranged at intervals along the first direction, the chain connects the two sprockets, the sprocket drive motor is connected to one of the sprockets, and the first welding assembly 52 and the second welding assembly 53 are connected to the chain respectively. When the sprocket drive motor drives the sprocket to rotate, it drives the chain transmission, and then drives the first welding assembly 52 and the second welding assembly 53 to move simultaneously along the first direction. In order to improve the stability of the movement of the first welding assembly 52 and the second welding assembly 53, the moving assembly 51 also includes a guide plate 511, and a guide track 512 is provided on the guide plate 511. The guide track 512 extends along the first direction. The first welding assembly 52 and the second welding assembly 53 are respectively provided with a guide slider, and the guide slider is slidably arranged on the guide track 512. In some other practicable methods, the moving assembly 51 is a synchronous belt structure, and its principle is the same as that of the sprocket chain assembly, which will not be described in detail here.

[0071] The cylinder welding device provided in the present application further includes a control component 54 , which is connected to the moving component 51 . The moving component 51 can drive the control component 54 to move along a first direction and move simultaneously with the first welding component 52 and the second welding component 53 .

[0072] Based on the above structure, the control assembly 54 is slidably connected to the guide rail 512, the first wire feeder 525 and the second wire feeder 535 are respectively connected to the control assembly 54, and the first wire feeder 525 and the second wire feeder 535 can be slidably connected to the guide rail 512. The first lifting drive member 524 and the second lifting drive member 534 are connected to the control assembly 54 through the connecting plate 513, the connecting plate 513 is slidably connected to the guide rail 512, the first lifting drive member 524 and the second lifting drive member 534 are fixed on the connecting plate 513 at intervals, and the control assembly 54 is connected to the chain, so that the first welding assembly 52, the second welding assembly 53 and the control assembly 54 can be moved simultaneously, and the structure is simple.

[0073] The control component 54 can realize the control of the start, stop, swing, moving speed, welding current, welding voltage, etc. of the first welding gun 522 and the second welding gun 532. The wire feeding speed of the first wire feeder 525 and the second wire feeder 535 can also be controlled. The specific control method is the existing technology and will not be described in detail here.

[0074] In some other embodiments, the moving component 51 can drive the first welding component 52 and the second welding component 53 to move respectively, and then can adjust the moving speeds of the first welding component 52 and the second welding component 53 respectively. The specific structure of the moving component 51 is the existing technology and will not be described in detail here.

[0075] In some embodiments, the moving assembly 51 may be connected to the supporting column 2 via a bracket structure, which is not specifically limited herein.

[0076] When using the cylinder welding device provided in this application, the following steps are included:

[0077] The cylinder 100 to be welded is placed on the support platform assembly 42 of the support mechanism 4 , and the position of the cylinder 100 can be manually adjusted so that the weld of the cylinder 100 faces the first welding assembly 52 and the second welding assembly 53 .

[0078] The lifting assembly 41 of the supporting mechanism 4 is controlled to move to adjust the height of the supporting platform assembly 42 , thereby adjusting the height of the cylinder 100 relative to the supporting core shaft 3 to ensure that the cylinder 100 can be sleeved on the supporting core shaft 3 .

[0079] The supporting mechanism 4 is controlled to slide along the first direction so that the cylinder 100 is sleeved on the supporting core shaft 3 .

[0080] The control plate driving member 7 drives the pressing plate 6 to press downward so that the cylinder 100 is pressed against the supporting core shaft 3, thereby fixing the position of the cylinder 100 and preventing the cylinder 100 from being displaced during welding.

[0081] Adjust the position of the first welding gun 522 so that the first welding gun 522 is facing the weld of the cylinder 100, adjust the welding height of the first welding gun 522, and adjust the welding height of the second welding gun 532. When the temperature of the cylinder 100 heated by the preheating part 34 reaches a preset temperature, control the moving component 51 to move and drive the first welding gun 522 and the second welding gun 532 to move along the first direction to perform welding. At the same time, the first wire feeder 525 and the second wire feeder 535 feed wires to the first welding gun 522 and the second welding gun 532 respectively.

[0082] After welding is completed, the heights of the first welding gun 522 and the second welding gun 532 are adjusted so that the first welding gun 522 and the second welding gun 532 are reset away from the cylinder 100 .

[0083] The support mechanism 4 is controlled to move to drag the cylinder 100 to separate from the support core shaft 3, and the moving assembly 51 is controlled to reset the first welding assembly 52 and the second welding assembly 53 along the first direction to prepare for the next welding.

[0084] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A welding device for a cylinder, characterized in that: include: A base (1), wherein a supporting column (2) is provided on the base (1); A supporting mandrel (3), one end of which is connected to the supporting column (2); A support mechanism (4), the support mechanism (4) comprising a lifting component (41) and a support platform component (42) connected to the lifting component (41), the support platform component (42) being used to support the cylinder (100), the lifting component (41) being slidably disposed on the base (1) along a first direction, the lifting component (41) being used to drive the support platform component (42) to be lifted and lowered along a second direction and to move along a first direction, so that the cylinder (100) is sleeved on the support core shaft (3); A welding mechanism (5) comprises a moving assembly (51), wherein the moving assembly (51) is provided with a first welding assembly (52) and a second welding assembly (53) for welding a weld of a cylinder (100), wherein the moving assembly (51) is used to drive the first welding assembly (52) and the second welding assembly (53) to move along a first direction, wherein the first welding assembly (52) is used to perform fill welding on the weld, and the second welding assembly (53) is used to perform remelting welding on the weld.

2. The welding device for a cylinder according to claim 1, characterized in that: The support platform assembly (42) comprises a support platform (421), one side of the support platform (421) is connected to the lifting assembly (41), and the other side of the support platform (421) is provided with a roller group driving component and two support roller groups (422) spaced apart along a third direction, the roller group driving component is used to drive at least one of the support roller groups (422) to move along the third direction to adjust the spacing between the two support roller groups (422), and the two support roller groups (422) are used to support the cylinder (100).

3. The welding device for a cylinder according to claim 1, characterized in that: The lifting assembly (41) comprises a lifting chassis (411) and a lifting frame (412); one side of the lifting chassis (411) is slidably connected to the base (1); the other side of the lifting chassis (411) is connected to one end of the lifting frame (412); and the other end of the lifting frame (412) is connected to the support platform assembly (42).

4. The welding device for a cylinder according to claim 1, characterized in that: The surface of the supporting mandrel (3) in contact with the cylinder (100) is an arcuate surface matching the cylinder (100); the arcuate surface is provided with a groove (31) along a first direction; a liner (32) is provided in the groove (31); a receiving groove (33) is provided on the liner (32); the liner (32) is used to support the cylinder (100); and the receiving groove (33) is used to correspond to the welding groove (101) of the cylinder (100); preheating parts (34) are respectively provided on both sides of the groove (31) built into the liner (32); the preheating parts (34) are used to contact with the cylinder (100) and heat the cylinder (100).

5. The welding device for a cylinder according to claim 4, characterized in that: The preheating element (34) is detachably disposed in the groove (31), a plurality of the preheating elements (34) are provided, and the plurality of preheating elements (34) are sequentially disposed in the groove (31) along a first direction; and / or The gasket (32) is detachably arranged in the groove (31), and a plurality of the gaskets (32) are provided, and the plurality of gaskets (32) are sequentially arranged in the groove (31) along a first direction.

6. The welding device for a cylinder according to claim 4, characterized in that: The support core shaft (3) is provided with at least two pressure plates (6) on one side of the arc surface, and at least two of the pressure plates (6) are arranged on both sides of the accommodating groove (33). At least two of the pressure plates (6) are connected to a pressure plate driving member (7), and the pressure plate driving member (7) is used to drive at least two of the pressure plates (6) to move toward the support core shaft (3) to press the cylinder (100) against the support core shaft (3).

7. The welding device for a cylinder according to claim 1, characterized in that: The first welding assembly (52) comprises: A first welding gun clamp (521), used for clamping a first welding gun (522); A first swinging member (523) connected to the first welding gun clamping member (521), the first swinging member (523) being used to drive the first welding gun clamping member (521) to swing along a third direction; The first lifting driving member (524) is arranged on the moving assembly (51), the first swinging member (523) is connected to the first lifting driving member (524), and the first lifting driving member (524) is used to drive the first swinging member (523) to move up and down along the second direction.

8. The welding device for a cylinder according to claim 7, characterized in that: The first welding assembly (52) also includes a first wire feeder (525), which is arranged on the moving assembly (51). The moving assembly (51) is used to drive the first wire feeder (525) and the first lifting drive member (524) to move simultaneously along a first direction, and the first wire feeder (525) is used to provide solder to the first welding gun (522).

9. The welding device for a cylinder according to claim 1, characterized in that: The second welding assembly (53) comprises: A second welding gun clamp (531), used for clamping a second welding gun (532); A second swinging member (533) connected to the second welding gun clamping member (531), the second swinging member (533) being used to drive the second welding gun clamping member (531) to swing along a third direction; The second lifting drive member (534) is arranged on the moving assembly (51), the second swing member (533) is connected to the second lifting drive member (534), and the second lifting drive member (534) is used to drive the second swing member (533) to rise and fall along a second direction.

10. The welding device for a cylinder according to claim 9, characterized in that: The second welding assembly (53) also includes a second wire feeder (535), which is arranged on the moving assembly (51). The moving assembly (51) is used to drive the second wire feeder (535) and the second lifting drive member (534) to move simultaneously along the first direction, and the second wire feeder (535) is used to provide solder to the second welding gun (532).

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