Large-curvature-radius elbow tee joint inner wall surfacing device

Abstract

The invention discloses a large-curvature-radius elbow tee joint inner wall surfacing device and belongs to the technical field of welding machining.The large-curvature-radius elbow tee joint inner wall surfacing device comprises a supporting base, a mounting plate and a welding head, a rotating shaft is rotationally mounted on the supporting base through a driving part, a mounting platform is fixedly mounted at the end, away from the supporting base, of the rotating shaft, and a workpiece is arranged on the surface of the mounting plate; and a rotating assembly used for rotating the mounting plate is fixedly mounted on the mounting platform, and the rotating assembly comprises a supporting frame used for supporting the mounting plate. The bending mechanism is arranged, the bending angles of the multiple sets of connecting arms can be adjusted through cooperation of a first connecting shaft, a third air cylinder and a second connecting shaft, and therefore an arc shape or a long strip shape similar to a circle is formed to weld workpieces, and the bending mechanism can adjust the bending angles of the connecting arms according to the radiuses of different workpieces; and the welding head can conveniently weld various workpieces.

Description

Technical Field

[0001] The invention relates to the technical field of welding processing, in particular to a device for surfacing the inner wall of a tee elbow with a large curvature radius. Background Art

[0002] When welding elbows or tees with large curvature radius, surfacing is generally used. As an economical and fast process for material surface modification, surfacing is increasingly widely used in the manufacture and repair of parts in various industrial sectors.

[0003] Patent No. CN119016963B discloses a device for surfacing the inner wall of a large curvature radius elbow, which relates to the field of elbow processing, and includes a frame, a first rotary drive mechanism, a displacement worktable and a rotary surfacing mechanism, wherein the first rotary drive mechanism is used to drive the displacement worktable to rotate; the rotary surfacing mechanism includes a second rotary drive component, a rotary base, a workpiece fixing fixture, a connecting frame, a connecting rod and a welding gun, wherein the second rotary drive component is used to drive the rotary base to rotate, and the workpiece fixing fixture is used to fix the elbow workpiece on the rotary base, and make the center of the circle of the elbow workpiece coincide with the first hinge point, and the first hinge point, the second hinge point, the third hinge point and the rotation center of the rotary base form a parallelogram; the welding gun includes an arc rod, a third rotary drive component, a rotary base and a welding assembly. The device for welding the inner wall of a large curvature radius elbow can avoid the problems of easy deformation of the elbow, easy leakage at the pipe joints, and reduced pressure resistance, thereby improving welding efficiency. However, the device has a narrow scope of application and can only be used for welding elbows, and can only be used for elbows of one specification. When welding different workpieces, different devices need to be used, increasing processing costs. Summary of the invention

[0004] The purpose of the present invention is to provide a device for welding the inner wall of a tee elbow with a large curvature radius, so as to solve the problem in the background technology that the current device for welding the inner wall of a tee elbow with a large curvature radius has limited application scope.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0006] The present invention provides a device for welding the inner wall of a tee elbow with a large curvature radius, comprising a support seat, a mounting plate and a welding head, wherein the support seat is rotatably mounted with a rotating shaft through a driving member, and a mounting platform is fixedly mounted on one end of the rotating shaft away from the support seat, a workpiece is arranged on the surface of the mounting plate, and a rotating assembly for rotating the mounting plate is fixedly mounted on the mounting platform, the rotating assembly comprises a support frame for supporting the mounting plate, and a first cylinder for driving the mounting plate to rotate, a driving mechanism for moving the welding head is mounted on the support frame, a bending mechanism for adapting to the curvature of the workpiece is movably mounted on the driving mechanism, and a welding head is fixedly mounted on the bending mechanism,

[0007] Both ends of the support frame are rotatably mounted with mounting plates, the output end of the first cylinder is rotatably mounted on the surface of the mounting plate close to the support frame, and the other end of the first cylinder is rotatably mounted on the top of the mounting platform;

[0008] The mounting plate includes a radius adjustment component for adjusting the curvature of the elbow, an angle adjustment component for installing the tee, and a clamping component for fixing the elbow and the tee;

[0009] The radius adjustment assembly includes a middle internal thread slider and a side internal thread slider for installing the angle adjustment assembly, a first screw rod for driving the middle internal thread slider and the side internal thread slider to move, and an operating chamber for installing the first screw rod, the middle internal thread slider and the side internal thread slider;

[0010] An operating cavity is provided on the surface of the mounting plate, and three first screw rods are rotatably installed in the operating cavity in a fan-shaped manner, and the left and right first screw rods are threadedly connected with side internal thread sliders, and the middle first screw rod is threadedly connected with a middle internal thread slider;

[0011] The angle adjustment assembly includes a first movable seat and a second movable seat for installation, and a rotating disk, a rotating rod and a bearing for adjusting the angle of the clamping assembly;

[0012] The axial centers of the first movable seat and the second movable seat are fixedly mounted on the surfaces of the middle internal thread slider and the side internal thread slider respectively, and a rotating disk is rotatably mounted at the axial centers of the first movable seat and the second movable seat through a rotating rod and a bearing;

[0013] The clamping assembly includes a fixed clamping frame for supporting the workpiece, and a movable clamping frame for fixing the workpiece;

[0014] A fixed clamping frame is fixedly mounted on the rotating disk, and a movable clamping frame is rotatably mounted on the fixed clamping frame;

[0015] The bending mechanism comprises a mounting arm and a connecting arm for connecting the power cord of the welding head, and a second hinge for rotating the mounting arm and the connecting arm and mutually installing the connecting arms;

[0016] The mounting arm is mounted on the driving mechanism, a connecting arm is rotatably mounted on the end of the mounting arm via a second hinge, and a welding head is fixedly mounted on the end of the connecting arm.

[0017] Preferably, the radius adjustment assembly further comprises a gear for rotating the first screw rod, and a toothed disc for rotating the gear;

[0018] A gear is fixedly mounted on the end of the first screw rod, and a matching toothed disc is connected to the side of the gear. The axial center of the toothed disc is rotatably mounted inside the operating cavity through the output end of the driving member, and the driving member is mounted at the center of the mounting plate.

[0019] Preferably, the middle internal thread slider includes a slide groove and a slide rail for moving the first movable seat, and a fixed seat, a first bolt and a limit groove for fixing the first movable seat;

[0020] A sliding groove is provided on the surface of the middle internal threaded slider, and a sliding rail is movably connected inside the sliding groove. The side of the sliding rail is fixedly installed at the axial center of the first movable seat, and a fixed seat is symmetrically fixedly installed on the outer surface of the first movable seat. A first bolt is threadedly connected to the fixed seat through a threaded hole inside, and two limiting grooves are provided on the surface of the mounting plate near the end of the first bolt.

[0021] Preferably, the angle adjustment assembly further comprises a second bolt for fixing the rotating disk, and a rotating groove for sliding of the second bolt;

[0022] The surfaces of the first movable seat and the second movable seat are both provided with rotation grooves, and the surface of the rotating plate close to the rotation grooves is threadedly connected with a second bolt through a threaded hole.

[0023] Preferably, the clamping assembly further comprises a first clamping seat and a second clamping seat for fixing the workpiece, and a second screw rod, a rotating disk and a moving plate for moving the second clamping seat;

[0024] Two first clamping seats are symmetrically installed in the middle of the inner corner of the fixed clamping frame, and a second screw rod is threadedly connected to the top of the movable clamping frame through a threaded hole, a turntable is fixedly installed on one end of the second screw rod, and a movable plate is rotatably installed on the other end of the second screw rod, and the side of the movable plate is movably installed on the inner side of the movable clamping frame, and a second clamping seat is symmetrically fixedly installed on the left and right sides of the middle part of the movable plate.

[0025] Preferably, the clamping assembly further comprises a first hinge for rotating the fixed clamping frame and the movable clamping frame, and a locking member for fixing the movable clamping frame;

[0026] A first hinge is installed on the upper part of the fixed clamping frame, a side of the first hinge is installed on the lower part of the movable clamping frame, and the fixed clamping frame is connected to a side of the movable clamping frame away from the first hinge through a locking member.

[0027] Preferably, the driving mechanism comprises a lateral movement assembly for lateral movement of the bending mechanism, and a second cylinder for forward and backward movement of the bending mechanism;

[0028] A lateral movement component is fixedly mounted on the support frame, and a second cylinder is mounted on the lateral movement component.

[0029] Preferably, the driving mechanism further comprises a mounting seat for fixing, and a rotating assembly for rotating the bending mechanism;

[0030] A mounting seat is fixedly mounted on the output end of the second cylinder, and a rotating component is mounted on the mounting seat.

[0031] Preferably, the driving mechanism further comprises a fixing cover for mounting the mounting arm, and an adjusting assembly for moving the mounting arm;

[0032] A fixed cover is fixedly mounted on the rotating component, a mounting arm is movably mounted inside the fixed cover, and an adjusting component is fixedly mounted on the side of the fixed cover.

[0033] Preferably, the bending mechanism further comprises a first connecting shaft, a third cylinder and a second connecting shaft for adjusting the angle of the connecting arm, and an installation cavity for installing the first connecting shaft, the third cylinder and the second connecting shaft;

[0034] The mounting arm and the connecting arm both have mounting cavities at one end, a first connecting shaft is fixedly mounted inside the mounting cavity, a mounting end of a third cylinder is rotatably mounted on the first connecting shaft, an output end of the third cylinder is rotatably connected to a second connecting shaft, and side surfaces of the second connecting shaft are respectively mounted on the connecting arm and the welding head.

[0035] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0036] 1. A bending mechanism is provided to adjust the bending angles of multiple groups of connecting arms through the cooperation of the first connecting shaft, the third cylinder and the second connecting shaft, so as to form an arc or a strip shape that is approximately circular for welding the workpiece, and the bending mechanism can adjust the bending angle of the connecting arm according to the radius of different workpieces, so that the welding head can weld a variety of workpieces;

[0037] 2. A radius adjustment assembly is provided to drive the three groups of clamping assemblies to move toward the center of the mounting plate through the cooperation of the side internal thread slider, the middle internal thread slider and the first screw rod. The three groups of clamping assemblies move synchronously on the mounting plate to fix workpieces with different curvatures;

[0038] 3. A first movable seat is provided to slide inside the operating cavity through the cooperation of a slide groove and a slide rail. When the first movable seat moves to a specified position on the mounting plate, it can work through the cooperation of a first bolt and a limit groove. After the first movable seat is fixed, the angle of the clamping assembly can be adjusted through the cooperation of a rotating rod and a bearing. The angle adjustment of the clamping assembly can fix the tee, making it convenient for the clamping assembly to fix a variety of pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0040] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0041] Figure 2 This is a schematic diagram of a local stereoscopic viewing angle structure of the present invention;

[0042] Figure 3 This is a schematic diagram of the second structure of a local stereoscopic viewing angle of the present invention;

[0043] Figure 4 It is a partial front view structural schematic diagram of the present invention;

[0044] Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the mounting plate of the present invention;

[0045] Figure 6 It is a schematic diagram of an exploded structure of a central angle adjustment component and a clamping component in a three-dimensional perspective;

[0046] Figure 7 It is a schematic diagram of the exploded structure of the middle angle adjustment component and the clamping component of the present invention from a three-dimensional perspective;

[0047] Figure 8 It is a schematic diagram of an exploded structure of a side angle adjustment component and a clamping component in a three-dimensional perspective;

[0048] Fig. 9 It is a schematic diagram of the exploded structure of the side angle adjustment component and the clamping component of the present invention from a three-dimensional perspective;

[0049] Fig.10 It is a schematic diagram of the enlarged structure of the bending mechanism of the present invention;

[0050] Fig.11 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the driving mechanism of the present invention;

[0051] In the figure:

[0052] 100, support seat;

[0053] 200, rotating shaft;

[0054] 300. Installation platform;

[0055] 400, support frame; 410, first cylinder;

[0056] 500, mounting plate;

[0057] 510, first screw rod;

[0058] 511, middle internal thread slider; 5111, slide groove; 5112, slide rail; 5113, fixed seat; 5114, first bolt; 5115, limit groove;

[0059] 512, side internal thread slider; 513, gear; 514, toothed disc; 515, operating chamber;

[0060] 520, first moving seat; 521, second moving seat; 522, rotating rod; 523, rotating groove; 524, bearing; 525, rotating disk; 526, second bolt;

[0061] 530, fixed clamping frame; 531, first clamping seat; 532, first hinge; 533, movable clamping frame; 534, second screw rod; 535, turntable; 536, movable plate; 537, second clamping seat; 538, locking member;

[0062] 600, lateral movement assembly; 610, second cylinder; 620, mounting seat; 630, rotating assembly; 640, fixed cover; 650, adjustment assembly;

[0063] 700, mounting arm; 710, mounting cavity; 720, first connecting shaft; 730, third cylinder; 740, second connecting shaft; 750, connecting arm; 760, second hinge;

[0064] 800, welding head;

[0065] 900. Workpiece. DETAILED DESCRIPTION

[0066] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0067] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0068] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0069] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0070] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0071] See also Figure 1-Figure 5 , Fig.10The present invention provides an embodiment: a device for surfacing the inner wall of a tee elbow with a large curvature radius, comprising a support seat 100, a mounting plate 500 and a welding head 800, wherein the support seat 100 is rotatably mounted with a rotating shaft 200 through a driving member, and a mounting platform 300 is fixedly mounted on one end of the rotating shaft 200 away from the support seat 100, a workpiece 900 is arranged on the surface of the mounting plate 500, and a rotating assembly for rotating the mounting plate 500 is fixedly mounted on the mounting platform 300, and the rotating assembly includes a support frame 400 for supporting the mounting plate 500 , and a first cylinder 410 for driving the mounting plate 500 to rotate, the mounting plates 500 are rotatably mounted on both ends of the support frame 400, the output end of the first cylinder 410 is rotatably mounted on the surface of the mounting plate 500 close to the support frame 400, and the other end of the first cylinder 410 is rotatably mounted on the top of the mounting platform 300, a driving mechanism for moving the welding head 800 is installed on the support frame 400, a bending mechanism for adapting to the curvature of the workpiece 900 is movably installed on the driving mechanism, and the welding head 800 is fixedly installed on the bending mechanism,

[0072] It should be understood that when the inner wall surfacing device is in use, the workpiece 900 needs to be fixedly mounted on the mounting plate 500 by a clamping assembly. The workpiece 900 can be divided into an elbow and a tee. When the elbow is fixed, the curvature of the bending mechanism can be adjusted according to its curvature. After the curvature of the bending mechanism is adjusted, the driving mechanism drives the bending mechanism and the welding head 800 to move. When the bending mechanism moves, its center of circle can be driven to coincide with the center of circle of the mounting plate 500. At this time, when the first cylinder 410 works, it can drive the mounting plate 500 to rotate on the support frame 400. When the mounting plate 500 rotates, it can drive the elbow to be sleeved on the outside of the bending mechanism and the welding head 800. When the welding head 800 enters the inside of the elbow, welding can be performed.

[0073] When the tee needs to be welded, it can be fixed on the mounting plate 500. After the tee is fixed, the welding head 800 can be moved to the inside of the tee for welding through the operation of the bending mechanism and the driving mechanism.

[0074] The mounting plate 500 includes a radius adjustment assembly for adjusting the curvature of the elbow, an angle adjustment assembly for installing the tee, and a clamping assembly for fixing the elbow and the tee;

[0075] like Figure 4-Figure 7 , Fig. 9 As shown, the radius adjustment assembly includes a middle internal thread slider 511 and a side internal thread slider 512 for installing the angle adjustment assembly, a first screw rod 510 for driving the middle internal thread slider 511 and the side internal thread slider 512 to move, and an operating chamber 515 for installing the first screw rod 510, the middle internal thread slider 511 and the side internal thread slider 512;

[0076] An operating cavity 515 is provided on the surface of the mounting plate 500. Three first screw rods 510 are rotatably installed in the operating cavity 515 in a fan-shaped manner. The left and right first screw rods 510 are threadedly connected to side internal thread sliders 512, and the middle first screw rod 510 is threadedly connected to a middle internal thread slider 511.

[0077] The three first screw rods 510 can rotate inside the operating cavity 515. When the three first screw rods 510 rotate, they can drive two side internal thread sliders 512 and one middle internal thread slider 511 to perform threaded sliding respectively. When the side internal thread sliders 512 and the middle internal thread slider 511 perform threaded sliding, the clamping assembly can be adjusted according to the radius of the elbow.

[0078] like Figure 2 , Figure 5-Figure 9 As shown, the angle adjustment assembly includes a first movable seat 520 and a second movable seat 521 for installation, and a rotating disk 525, a rotating rod 522 and a bearing 524 for adjusting the angle of the clamping assembly;

[0079] The first movable seat 520 and the second movable seat 521 are fixedly mounted on the surfaces of the middle internal thread slider 511 and the side internal thread slider 512 at the axial center of the circle, respectively. A rotating disk 525 is rotatably mounted at the axial center of the first movable seat 520 and the second movable seat 521 through a rotating rod 522 and a bearing 524.

[0080] When welding a tee, it is necessary to adjust the angle of the clamping assembly. Rotating the clamping assembly can drive the rotating disk 525 to rotate. When the rotating disk 525 rotates, it can rotate through the bearing 524 and the rotating rod 522. When the rotating disk 525 rotates, the angle of the clamping assembly can be adjusted. After the angle adjustment of the clamping assembly is completed, the tee can be clamped and fixed.

[0081] like Figure 1 , Figure 2 , Figure 4-Figure 9 As shown, the clamping assembly includes a fixed clamping frame 530 for supporting the workpiece 900, and a movable clamping frame 533 for fixing the workpiece 900;

[0082] A fixed clamping frame 530 is fixedly mounted on the rotating disk 525, and a movable clamping frame 533 is rotatably mounted on the fixed clamping frame 530;

[0083] The workpiece 900 is placed in the groove of the fixed clamping frame 530 , and then the movable clamping frame 533 is turned over and rotated. When the movable clamping frame 533 rotates to a specified position, the workpiece 900 can be clamped and limited.

[0084] like Figure 1 , Figure 2 , Figure 4 , Fig.10 and Fig.11 As shown, the bending mechanism includes a mounting arm 700 and a connecting arm 750 for connecting the power cord of the welding head 800, and a second hinge 760 for rotating the mounting arm 700 and the connecting arm 750 and mutually installing the connecting arms 750;

[0085] The mounting arm 700 is mounted on the driving mechanism, and the end of the mounting arm 700 is rotatably mounted with a connecting arm 750 through a second hinge 760, and the end of the connecting arm 750 is fixedly mounted with a welding head 800;

[0086] The mounting arm 700 and the connecting arm 750 can be bent through the second hinge 760, so that multiple groups of connecting arms 750 can be formed into an arc shape or a strip shape that is approximately circular according to an elbow or a tee.

[0087] like Figure 4 and Figure 5 As shown, the radius adjustment assembly further includes a gear 513 for rotating the first screw rod 510 and a toothed disc 514 for rotating the gear 513;

[0088] A gear 513 is fixedly mounted at the end of the first screw rod 510, and a matching toothed disc 514 is connected to the side of the gear 513. The axial center of the toothed disc 514 is rotatably mounted inside the operating cavity 515 through the output end of the driving member, and the driving member is mounted at the center of the mounting plate 500;

[0089] The operation of the driving member can drive the toothed disc 514 to rotate. When the toothed disc 514 rotates, it drives the three gears 513 to mesh and rotate. When the three gears 513 mesh and rotate, they can respectively drive the three first screw rods 510 to rotate.

[0090] like Figure 2 , Figure 4-Figure 7 As shown, the middle internal thread slider 511 includes a slide groove 5111 and a slide rail 5112 for the first movable seat 520 to move, and a fixed seat 5113, a first bolt 5114 and a limiting groove 5115 for fixing the first movable seat 520;

[0091] A slide groove 5111 is provided on the surface of the middle internal thread slider 511, and a slide rail 5112 is movably connected inside the slide groove 5111. The side of the slide rail 5112 is fixedly installed at the axial center of the first movable seat 520. A fixed seat 5113 is symmetrically fixedly installed on the outer surface of the first movable seat 520. A first bolt 5114 is threadedly connected to the fixed seat 5113 through a threaded hole. Two limiting grooves 5115 are provided on the surface of the mounting plate 500 near the end of the first bolt 5114.

[0092] When the tee needs to be fixed, the first bolt 5114 and the limiting groove 5115 can be loosened by twisting. At this time, pushing the first movable seat 520 can drive the slide rail 5112 to move. When the slide rail 5112 moves, it can slide inside the slide groove 5111. When the slide rail 5112 slides out of the slide groove 5111, it can slide in the operating cavity 515. The first movable seat 520 can drive the fixed seat 5113 to move while sliding. When the fixed seat 5113 moves, it can drive the first bolt 5114 to slide in the limiting groove 5115. When the first movable seat 520 slides to the specified position, the limiting groove 5115 can be squeezed by twisting the first bolt 5114. The first bolt 5114 can fix the first movable seat 520 when squeezing the limiting groove 5115.

[0093] like Figure 2 , Figure 3 , Figure 5-Figure 9 As shown, the angle adjustment assembly further includes a second bolt 526 for fixing the rotating disk 525, and a rotating groove 523 for the second bolt 526 to slide;

[0094] The first movable seat 520 and the second movable seat 521 are both provided with a rotation groove 523 on their surfaces, and a second bolt 526 is threadedly connected to the surface of the rotating plate 525 near the rotation groove 523 through a threaded hole;

[0095] Before the rotating disk 525 rotates, the second bolt 526 needs to be twisted. When the second bolt 526 is twisted, it will loosen with the rotating groove 523 through thread sliding. After the second bolt 526 is loosened, the rotating disk 525 can be rotated. When the rotating disk 525 rotates, it can drive the end of the second bolt 526 to slide in the rotating groove 523. When the rotating disk 525 rotates to a specified angle, the second bolt 526 can be twisted again. When the second bolt 526 is twisted, it can squeeze the inner side of the rotating groove 523. When the second bolt 526 is squeezed, the rotating disk 525 can be fixed.

[0096] like Figure 1 , Figure 2 , Figure 4-Figure 9 As shown, the clamping assembly further includes a first clamping seat 531 and a second clamping seat 537 for fixing the workpiece 900, and a second screw rod 534, a rotating disk 535 and a moving plate 536 for moving the second clamping seat 537;

[0097] Two first clamping seats 531 are symmetrically installed in the middle of the inner corner of the fixed clamping frame 530, and a second screw rod 534 is threadedly connected through a threaded hole on the top of the movable clamping frame 533. A rotating disk 535 is fixedly installed on one end of the second screw rod 534, and a movable plate 536 is rotatably installed on the other end of the second screw rod 534. The side of the movable plate 536 is movably installed on the inner side of the movable clamping frame 533, and a second clamping seat 537 is symmetrically fixedly installed in the middle of the movable plate 536.

[0098] The workpiece 900 is placed between the two first clamping seats 531. After the workpiece 900 is placed, the turntable 535 can be rotated, and the rotation of the turntable 535 can drive the second screw rod 534 to rotate, and the second screw rod 534 can slide threadedly through the movable clamping frame 533 when it rotates, and the threaded sliding of the second screw rod 534 can drive the movable plate 536 to rotate and move, and the movable plate 536 can slide inside the movable clamping frame 533 when it moves, and the sliding of the movable plate 536 can drive the second clamping seat 537 to move, and when the second clamping seat 537 moves to the side of the workpiece 900, it can be squeezed and fixed.

[0099] like Figure 2 , Figure 4-Figure 9 As shown, the clamping assembly further includes a first hinge 532 for fixing the clamping frame 530 and the movable clamping frame 533 to rotate, and a locking member 538 for fixing the movable clamping frame 533;

[0100] A first hinge 532 is installed on the upper part of the fixed clamping frame 530, and a side of the first hinge 532 is installed on the lower part of the movable clamping frame 533. The fixed clamping frame 530 and the movable clamping frame 533 are connected to each other at a side away from the first hinge 532 through a locking member 538.

[0101] The movable clamping frame 533 can be flipped with the fixed clamping frame 530 through the first hinge 532 . The movable clamping frame 533 can be closed with the fixed clamping frame 530 when flipped to a specified position. After the movable clamping frame 533 and the fixed clamping frame 530 are closed, they can be fixed by the locking member 538 .

[0102] like Figure 1-Figure 4 , Fig.11 As shown, the driving mechanism includes a lateral movement assembly 600 for lateral movement of the bending mechanism, and a second cylinder 610 for forward and backward movement of the bending mechanism;

[0103] A lateral movement assembly 600 is fixedly mounted on the support frame 400, and a second cylinder 610 is mounted on the lateral movement assembly 600;

[0104] The lateral movement component 600 can drive the second cylinder 610 and the bending mechanism to move laterally through the cooperation of the driving member, the threaded rod and the threaded slider. When the bending mechanism moves laterally, it can drive the welding head 800 to move laterally. The bending mechanism can also be driven to move forward and backward through the operation of the second cylinder 610. The forward and backward movement of the bending mechanism can ensure that the welding head 800 is always at the center of the workpiece 900.

[0105] like Figure 2-Figure 4 , Fig.10 , Fig.11 As shown, the driving mechanism also includes a mounting seat 620 for fixing, and a rotating assembly 630 for rotating the bending mechanism;

[0106] The output end of the second cylinder 610 is fixedly mounted with a mounting seat 620, and a rotating assembly 630 is mounted on the mounting seat 620;

[0107] When welding of the tee is required, the rotating assembly 630 can drive the bending mechanism and the welding head 800 to rotate through the cooperation of the driving member, gear and toothed disc. When the bending mechanism and the welding head 800 rotate, different ends of the tee can be welded respectively.

[0108] like Figure 1 , Figure 2 , Figure 4 , Fig.10 and Fig.11 As shown, the driving mechanism further includes a fixed cover 640 for mounting the mounting arm 700, and an adjustment assembly 650 for moving the mounting arm 700;

[0109] A fixed cover 640 is fixedly mounted on the rotating assembly 630, a mounting arm 700 is movably mounted inside the fixed cover 640, and an adjustment assembly 650 is fixedly mounted on the side of the fixed cover 640;

[0110] When the adjustment component 650 is working, it can drive the installation arm 700 to move through the cooperation of the driving part, gears and tooth grooves. When the installation arm 700 moves, it can slide inside the fixed cover 640. When the installation arm 700 slides, it can drive the connecting arm 750 and the welding head 800 to move. When the welding head 800 moves, it can accurately dock with the end of the workpiece 900.

[0111] like Figure 1 , Figure 2 , Figure 4 , Fig.10 and Fig.11 As shown, the bending mechanism further includes a first connecting shaft 720, a third cylinder 730 and a second connecting shaft 740 for adjusting the angle of the connecting arm 750, and an installation cavity 710 for installing the first connecting shaft 720, the third cylinder 730 and the second connecting shaft 740;

[0112] An installation cavity 710 is provided at one end of the installation arm 700 and the connecting arm 750. A first connecting shaft 720 is fixedly installed inside the installation cavity 710. A mounting end of a third cylinder 730 is rotatably installed on the first connecting shaft 720. A second connecting shaft 740 is rotatably connected to an output end of the third cylinder 730. Side surfaces of the second connecting shaft 740 are respectively installed on the connecting arm 750 and the welding head 800.

[0113] When the angle of the connecting arm 750 needs to be adjusted, the output end of the third cylinder 730 can push the second connecting shaft 740 to move when it is working. When the second connecting shaft 740 moves, it can push the end of the connecting arm 750 to move. When the connecting arm 750 moves, it can rotate through the second hinge 760. When the connecting arm 750 rotates, its end can rotate through the second connecting shaft 740 and the output end of the third cylinder 730. When the third cylinder 730 is working, its mounting end rotates inside the mounting cavity 710 through the first connecting shaft 720. The rotation of the connecting arm 750 can be adjusted according to different workpieces 900.

[0114] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for surfacing the inner wall of a tee elbow with a large curvature radius, comprising a support seat (100), a mounting plate (500) and a welding head (800), wherein the support seat (100) is rotatably mounted with a rotating shaft (200) through a driving member, and a mounting platform (300) is fixedly mounted on one end of the rotating shaft (200) away from the support seat (100), a workpiece (900) is arranged on the surface of the mounting plate (500), and a tool (900) for surfacing the mounting plate (500) is fixedly mounted on the mounting platform (300). 00), the rotating assembly comprising a support frame (400) for supporting the mounting plate (500), and a first cylinder (410) for driving the mounting plate (500) to rotate, a driving mechanism for moving the welding head (800) is installed on the support frame (400), a bending mechanism for adapting to the curvature of the workpiece (900) is movably installed on the driving mechanism, and the welding head (800) is fixedly installed on the bending mechanism, characterized in that: Both ends of the support frame (400) are rotatably mounted with mounting plates (500), the output end of the first cylinder (410) is rotatably mounted on the surface of the mounting plate (500) close to the support frame (400), and the other end of the first cylinder (410) is rotatably mounted on the top of the mounting platform (300); The mounting plate (500) comprises a radius adjustment component for adjusting the curvature of the elbow, an angle adjustment component for installing the tee, and a clamping component for fixing the elbow and the tee; The radius adjustment assembly comprises a middle internal thread slider (511) and a side internal thread slider (512) for installing the angle adjustment assembly, a first screw rod (510) for driving the middle internal thread slider (511) and the side internal thread slider (512) to move, and an operating chamber (515) for installing the first screw rod (510), the middle internal thread slider (511) and the side internal thread slider (512); An operating cavity (515) is provided on the surface of the mounting plate (500), and three first screw rods (510) are rotatably installed in the operating cavity (515) in a fan-shaped manner, and the left and right first screw rods (510) are threadedly connected to side internal thread sliders (512), and the middle first screw rod (510) is threadedly connected to a middle internal thread slider (511); The angle adjustment assembly comprises a first movable seat (520) and a second movable seat (521) for installation, and a rotating disk (525), a rotating rod (522) and a bearing (524) for adjusting the angle of the clamping assembly; The axial centers of the first movable seat (520) and the second movable seat (521) are respectively fixedly mounted on the surfaces of the middle internal thread slider (511) and the side internal thread slider (512); and a rotating disk (525) is rotatably mounted on the axial centers of the first movable seat (520) and the second movable seat (521) via a rotating rod (522) and a bearing (524); The clamping assembly comprises a fixed clamping frame (530) for supporting the workpiece (900), and a movable clamping frame (533) for fixing the workpiece (900); A fixed clamping frame (530) is fixedly mounted on the rotating disk (525), and a movable clamping frame (533) is rotatably mounted on the fixed clamping frame (530); The bending mechanism comprises a mounting arm (700) and a connecting arm (750) for connecting a power cord of the welding head (800), and a second hinge (760) for rotationally mounting the mounting arm (700) and the connecting arm (750) and for mutually mounting the connecting arms (750); The mounting arm (700) is mounted on the driving mechanism, and a connecting arm (750) is rotatably mounted on the end of the mounting arm (700) via a second hinge (760), and a welding head (800) is fixedly mounted on the end of the connecting arm (750).

2. The inner wall surfacing device of a large curvature radius elbow tee according to claim 1 is characterized in that: The radius adjustment assembly further comprises a gear (513) for rotating the first screw rod (510), and a toothed disc (514) for rotating the gear (513); A gear (513) is fixedly mounted on the end of the first screw rod (510), and a matching toothed disc (514) is connected to the side of the gear (513). The axial center of the toothed disc (514) is rotatably mounted inside the operating cavity (515) through the output end of the driving member, and the driving member is mounted at the center of the mounting plate (500).

3. The inner wall surfacing device of a large curvature radius elbow tee according to claim 1 is characterized in that: The middle internal thread slider (511) comprises a slide groove (5111) and a slide rail (5112) for moving the first movable seat (520), and a fixed seat (5113), a first bolt (5114) and a limiting groove (5115) for fixing the first movable seat (520); A slide groove (5111) is provided on the surface of the middle internal thread slider (511), and a slide rail (5112) is movably connected inside the slide groove (5111), and the side of the slide rail (5112) is fixedly installed at the axial center of the first movable seat (520), and a fixed seat (5113) is symmetrically fixedly installed on the outer surface of the first movable seat (520), and a first bolt (5114) is threadedly connected to the fixed seat (5113) through a threaded hole inside, and two limiting grooves (5115) are provided on the surface of the mounting plate (500) near the end of the first bolt (5114).

4. The device for surfacing the inner wall of a tee elbow with a large curvature radius according to claim 1, characterized in that: The angle adjustment assembly further includes a second bolt (526) for fixing the rotating disk (525), and a rotating groove (523) for the second bolt (526) to slide. The surfaces of the first movable seat (520) and the second movable seat (521) are both provided with a rotation groove (523), and the surface of the rotating disk (525) close to the rotation groove (523) is threadedly connected with a second bolt (526) through a threaded hole.

5. The inner wall surfacing device of a large curvature radius elbow tee according to claim 1 is characterized in that: The clamping assembly further comprises a first clamping seat (531) and a second clamping seat (537) for fixing the workpiece (900), and a second screw rod (534), a rotating disk (535) and a moving plate (536) for moving the second clamping seat (537); Two first clamping seats (531) are symmetrically installed in the middle of the inner corner of the fixed clamping frame (530), and a second screw rod (534) is threadedly connected to the top of the movable clamping frame (533) through a threaded hole, a turntable (535) is fixedly installed on one end of the second screw rod (534), and a movable plate (536) is rotatably installed on the other end of the second screw rod (534), and the side of the movable plate (536) is movably installed on the inner side of the movable clamping frame (533), and a second clamping seat (537) is symmetrically fixedly installed in the middle of the movable plate (536).

6. The device for surfacing the inner wall of a tee elbow with a large curvature radius according to claim 5, characterized in that: The clamping assembly further comprises a first hinge (532) for rotating the fixed clamping frame (530) and the movable clamping frame (533), and a locking member (538) for fixing the movable clamping frame (533); A first hinge (532) is installed on the upper part of the fixed clamping frame (530), and a side of the first hinge (532) is installed on the lower part of the movable clamping frame (533). The fixed clamping frame (530) and the movable clamping frame (533) are connected to each other at a side away from the first hinge (532) via a locking member (538).

7. The inner wall surfacing device of a large curvature radius elbow tee according to claim 1, characterized in that: The driving mechanism comprises a lateral movement assembly (600) for lateral movement of the bending mechanism, and a second cylinder (610) for forward and backward movement of the bending mechanism; A lateral movement assembly (600) is fixedly mounted on the support frame (400), and a second cylinder (610) is mounted on the lateral movement assembly (600).

8. The device for surfacing the inner wall of a tee elbow with a large curvature radius according to claim 7, characterized in that: The driving mechanism further comprises a mounting seat (620) for fixing, and a rotating assembly (630) for rotating the bending mechanism; A mounting seat (620) is fixedly mounted on the output end of the second cylinder (610), and a rotating assembly (630) is mounted on the mounting seat (620).

9. The device for surfacing the inner wall of a tee elbow with a large curvature radius according to claim 8, characterized in that: The driving mechanism further comprises a fixing cover (640) for mounting the mounting arm (700), and an adjusting assembly (650) for moving the mounting arm (700); A fixed cover (640) is fixedly mounted on the rotating assembly (630), a mounting arm (700) is movably mounted inside the fixed cover (640), and an adjustment assembly (650) is fixedly mounted on the side of the fixed cover (640).

10. The device for surfacing the inner wall of a tee elbow with a large curvature radius according to claim 1, characterized in that: The bending mechanism further comprises a first connecting shaft (720), a third cylinder (730) and a second connecting shaft (740) for adjusting the angle of the connecting arm (750), and an installation cavity (710) for installing the first connecting shaft (720), the third cylinder (730) and the second connecting shaft (740); The mounting arm (700) and the connecting arm (750) are each provided with a mounting cavity (710) at one end, a first connecting shaft (720) is fixedly mounted inside the mounting cavity (710), a mounting end of a third cylinder (730) is rotatably mounted on the first connecting shaft (720), an output end of the third cylinder (730) is rotatably connected to a second connecting shaft (740), and side surfaces of the second connecting shaft (740) are respectively mounted on the connecting arm (750) and the welding head (800).

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