Alignment-assisting stainless steel air pipe welding equipment and welding method

Abstract

The invention relates to the technical field of auxiliary welding, in particular to stainless steel air duct welding equipment capable of assisting alignment and a welding method.The stainless steel air duct welding equipment capable of assisting alignment comprises a workbench and a welding machine fixedly installed on the workbench, and symmetrically-arranged fixing plates are further fixed to the workbench; the transverse guide rail is fixedly installed on the workbench, protection boxes which are symmetrically arranged are installed on the transverse guide rail in a sliding mode, and a bidirectional translation assembly connected with the protection boxes is arranged on the fixing plate; the multidirectional clamping mechanism is arranged on the protection box; the follow-up rotating assembly is arranged on the multidirectional clamping mechanism; the pushing and releasing mechanism is arranged on the protection box and connected with the multi-direction clamping mechanism, and the multi-direction clamping mechanism is provided with a tensioning assembly connected with the pushing and releasing mechanism. According to the application, an air pipe can be controlled to rotate so as to assist a welding machine to assist, after welding of the air pipe is completed, the releasing action can be executed, and the welding efficiency is improved. Therefore, the auxiliary welding effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary welding, and in particular to an auxiliary alignment stainless steel air duct welding device and a welding method. Background Art

[0002] Stainless steel duct is mainly used in a variety of process exhaust systems with high air tightness requirements, such as solvent exhaust system, organic exhaust system, etc. It has the characteristics of beautiful appearance and smooth inner wall. It is mainly made of stainless steel, which is strong and easy to maintain integrity. In addition, stainless steel duct also has good physical and chemical properties such as corrosion resistance, heat resistance and high strength, which enables it to maintain excellent performance in a variety of complex environments.

[0003] Welding is a key link in stainless steel ducts, and the welding quality must be guaranteed. Choose appropriate welding materials and processes to ensure the strength and sealing of the welded joints. During the welding process, it is necessary to ensure that the circumferential welds can be welded.

[0004] In actual operation, the two sections of air ducts to be welded are usually fixed by clamping equipment, and the end faces of the two air ducts are controlled to abut against each other, and then circular welding is performed by a welding machine. However, the existing welding cannot automatically release the air duct after the air duct is welded. If the clamping equipment is directly controlled to reset at this time, it is very likely that the air duct will be broken due to the pulling force, or the clamping equipment will be worn. If the clamping equipment is stopped to release the air duct, it will lead to complicated operation and low welding efficiency. Summary of the invention

[0005] The object of the present invention is to provide a stainless steel duct welding device and a welding method with auxiliary alignment to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A stainless steel air duct welding device for auxiliary alignment, comprising:

[0008] A workbench and a welding machine fixedly mounted on the workbench, wherein a symmetrically arranged fixing plate is also fixed on the workbench;

[0009] Also includes:

[0010] A transverse guide rail is fixedly mounted on the workbench, a symmetrically arranged protection box is slidably mounted on the transverse guide rail, a bidirectional translation assembly connected to the protection box is arranged on the fixed plate, and the bidirectional translation assembly is used to drive the protection boxes to move toward or away from each other;

[0011] A multi-directional clamping mechanism is arranged on the protection box, and a plurality of clamping blocks equidistantly distributed in a circumference are connected to the multi-directional clamping mechanism, and the multi-directional clamping mechanism can clamp the air duct through the clamping blocks;

[0012] A follow-up rotating assembly is arranged on the multi-directional clamping mechanism, and the follow-up rotating assembly can control the rotation of the air duct through the clamping block when the multi-directional clamping mechanism moves;

[0013] A push-release mechanism is arranged on the protective box and connected to the multi-directional clamping mechanism. The multi-directional clamping mechanism is provided with a tensioning assembly connected to the push-release mechanism. When the protective box moves, the push-release mechanism can adjust the coordination state between the push-release mechanism and the multi-directional clamping mechanism through the tensioning assembly to control the clamping block to release the air duct.

[0014] As a further solution of the present invention: the bidirectional translation assembly comprises a bidirectional screw rod rotatably mounted on the fixed plate, a symmetrically arranged threaded sleeve is movably mounted on the bidirectional screw rod, and the threaded sleeve is threadably matched with the bidirectional screw rod;

[0015] It also includes a guide column fixedly mounted on the fixed plate, on which a symmetrically arranged guide sleeve is slidably mounted, and the guide sleeve and the threaded sleeve are fixedly connected to the protective box.

[0016] As a further solution of the present invention: the multi-directional clamping mechanism includes a supporting sleeve fixedly installed in the protective box, a movable rod movably installed in the supporting sleeve, a chuck fixed at the end of the movable rod, and a toothing assembly arranged in the chuck.

[0017] As a further solution of the present invention: the engaging assembly includes a first rotating rod rotatably installed in the chuck, a first gear is fixed on the first rotating rod, a second rotating rod is rotatably installed on the chuck, a second gear meshing with the first gear is fixed on the second rotating rod, and a driven structure connected to the first rotating rod is arranged in the chuck.

[0018] As a further solution of the present invention: the driven structure includes a vortex disk fixedly mounted on the end of the first rotating rod, the chuck is provided with a plurality of circumferentially equidistantly distributed sliding grooves, the sliding grooves are slidably connected to the clamping block, and a limiting column cooperating with the vortex disk is fixed on the clamping block.

[0019] As a further solution of the present invention: the follow-up rotating assembly includes a transverse groove and a spiral groove opened on the movable rod, a first limit block slidingly engaged with the transverse groove and the spiral groove is fixed in the support sleeve, and a first spring is sleeved on the movable rod and the support sleeve, and two ends of the first spring are respectively abutted against the protective box and the chuck.

[0020] As a further solution of the present invention: the push-release mechanism includes a rotating sleeve rotatably mounted on the side wall of the chuck, the rotating sleeve is provided with a guide groove, the rotating sleeve is sleeved with a belt connected to the second rotating rod, a push ring is fixed on the protective box, and the chuck is provided with a support assembly connected to the rotating sleeve.

[0021] As a further solution of the present invention: the support assembly includes a support column fixedly mounted on the chuck and symmetrically arranged, a movable plate slidably mounted on the support column and slidably connected to the rotating sleeve, a second limit block slidably connected to the guide groove is fixed in the movable plate, a conical column is fixed on the movable plate, and a second spring abutting against the movable plate is sleeved on the support column;

[0022] It also includes a push ring which is fixedly mounted on the side wall of the protection box and cooperates with the movable plate.

[0023] As a further solution of the present invention: the tensioning assembly comprises a support rail fixedly mounted on the chuck, a fixed rod is fixed in the support rail, a sliding block symmetrically arranged is slidably mounted on the fixed rod, and a third spring abutting against the sliding block is sleeved on the fixed rod;

[0024] It also includes a limiting groove arranged on the sliding block, an arc-shaped support plate is fixed on the sliding block, and the arc-shaped support plate cooperates with the belt.

[0025] A welding method for a stainless steel air duct welding device with auxiliary alignment, comprising the following steps:

[0026] Step 1: Place the air duct to be welded between the clamping blocks, and clamp the air duct through the clamping blocks under the action of the multi-directional clamping mechanism;

[0027] Step 2: Under the action of the bidirectional translation assembly, the multi-directional clamping mechanism is controlled to move through the protection box, so as to control the air ducts to move in a direction close to each other through the clamping blocks;

[0028] Step 3: When the two air ducts are in contact with each other, the air ducts are welded by a welding machine, and at the same time, under the action of the follow-up rotating assembly, the rotation of the air duct is controlled by the clamping block;

[0029] Step 4: After welding is completed, under the action of the protective box, the push-release mechanism is controlled to move, and under the action of the tensioning assembly, the push-release mechanism is controlled to cooperate with the multi-directional clamping mechanism to control the clamping block to release the air duct.

[0030] Compared with the prior art, the beneficial effects of the present invention are: the present application can clamp the air duct, and when the welding ends of the air duct abut against each other, control the rotation of the air duct to ensure that the welding machine can perform comprehensive welding on the circumferential weld. Specifically, when the multi-directional clamping mechanism is actuated, the clamping blocks are controlled to move in directions approaching each other to clamp the air duct. After the clamping is completed, the two-way translation assembly controls the two protective boxes to move in directions approaching each other to control the movement of the air duct through the multi-directional clamping mechanism. When the welding end faces of the two air ducts abut against each other, under the action of the follow-up rotating assembly, the rotation of the air duct is controlled by the multi-directional clamping mechanism to ensure that the welding machine can perform comprehensive welding on the circumferential weld.

[0031] After the duct welding is completed, the duct will no longer rotate. Under the action of the push release mechanism, the second rotating rod can be controlled to reverse to control the clamping blocks to move in a direction away from each other, so that the duct can be automatically released after the welding is completed. This not only effectively solves the cumbersome operation problem caused by the need to stop the machine for release in the prior art, but also effectively avoids the problem of high breakage rate of finished welding products caused by the duct welding part being pulled apart due to failure to release the duct in time, or the problem of reduced equipment service life caused by wear between the duct and the clamping block.

[0032] By controlling the tension and relaxation of the belt, it is possible to achieve the effect of transmission when the air duct is released, and no transmission when the air duct does not need to be clamped. This allows the air duct to be released without stopping after welding, thereby optimizing the overall welding process and ensuring welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A structural schematic diagram of an embodiment of a stainless steel duct welding device for auxiliary alignment.

[0034] Figure 2 A structural schematic diagram of another angle in an embodiment of a stainless steel duct welding device for auxiliary alignment.

[0035] Figure 3 A schematic structural diagram of a bidirectional translation component and a partial multidirectional clamping mechanism in an embodiment of a stainless steel duct welding device for auxiliary alignment.

[0036] Figure 4 A schematic diagram of the connection relationship between a portion of a multi-directional clamping mechanism, a portion of a push-release mechanism, and a portion of a tensioning assembly in an embodiment of a stainless steel duct welding device for auxiliary alignment.

[0037] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at point A in the middle.

[0038] Figure 6 A schematic diagram of a half-section structure of a chuck in one embodiment of a stainless steel duct welding device for assisting alignment.

[0039] Figure 7 A schematic diagram of the exploded structure of a portion of the multi-directional clamping mechanism in an embodiment of a stainless steel duct welding device for auxiliary alignment.

[0040] Figure 8 A schematic diagram of the connection relationship between a partial push-release mechanism, a tensioning assembly, and a partial multi-directional clamping mechanism in an embodiment of a stainless steel duct welding device for auxiliary alignment.

[0041] Fig. 9 A schematic diagram of a partially half-section structure of an embodiment of a stainless steel duct welding device for assisting alignment.

[0042] Fig.10 A schematic diagram of the exploded structure of part of the multi-directional clamping mechanism and part of the push-release mechanism in an embodiment of a stainless steel duct welding device for auxiliary alignment.

[0043] Fig.11 A schematic diagram of the exploded structure of a tensioning assembly in one embodiment of a stainless steel duct welding device for assisting alignment.

[0044] In the figure: 1, workbench; 2, welding machine; 3, fixed plate; 4, transverse guide rail; 5, protective box; 6, bidirectional screw; 7, threaded sleeve; 8, guide column; 9, guide sleeve; 10, support sleeve; 1001, first limit block; 11, movable rod; 1101, spiral groove; 1102, transverse groove; 12, chuck; 1201, slide groove; 13, first rotating rod; 14, first gear; 15, vortex disk; 16, clamping block; 17, limit column; 18, second rotating rod ; 19. Second gear; 20. First spring; 21. Rotating sleeve; 2101. First vertical slot; 2102. First oblique slot; 2103. Second vertical slot; 2104. Second oblique slot; 22. Support column; 23. Movable plate; 2301. Second limit block; 24. Second spring; 25. Push ring; 26. Conical column; 27. Belt; 28. Support rail; 29. ​​Fixed rod; 30. Third spring; 31. Sliding block; 3101. Limit slot; 32. Arc support plate. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0047] See also Figures 1 to 11 In an embodiment of the present invention, a stainless steel duct welding device for auxiliary alignment includes:

[0048] A workbench 1, and a welding machine 2 fixedly mounted on the workbench 1, wherein a symmetrically arranged fixing plate 3 is also fixed on the workbench 1;

[0049] Also includes:

[0050] See also Figure 1-Figure 3 , a transverse guide rail 4 is fixedly installed on the workbench 1, and a symmetrically arranged protective box 5 is slidably installed on the transverse guide rail 4. A two-way translation assembly connected to the protective box 5 is provided on the fixed plate 3, and the two-way translation assembly is used to drive the protective box 5 to move toward each other or away from each other. The two-way translation assembly includes a two-way screw rod 6 rotatably installed on the fixed plate 3, and a symmetrically arranged threaded sleeve 7 is movably installed on the two-way screw rod 6, and the threaded sleeve 7 is threadedly matched with the two-way screw rod 6; it also includes a guide column 8 fixedly installed on the fixed plate 3, and a symmetrically arranged guide sleeve 9 is slidably installed on the guide column 8, and the guide sleeve 9 and the threaded sleeve 7 are fixedly connected to the protective box 5.

[0051] In detail, the welding machine 2 is used to weld the air ducts. During welding, it is necessary to control the end faces of the two air ducts to abut against each other. Therefore, in the initial state, the distance between the two threaded sleeves 7 is the largest, so that the distance between the protective boxes 5 is the largest. Under the action of the multi-directional clamping mechanism and the clamping block 16, the air ducts are fixed, and the distance between the two air ducts is the largest. At this time, the bidirectional screw 6 rotates and drives the two threaded sleeves 7 to move, thereby driving the protective box 5 to move, so that the guide sleeve 9 moves along the length direction of the guide column 8. The guide sleeve 9 and the guide column 8 have a guiding function to ensure that the threaded sleeve 7 moves along the length direction of the bidirectional screw 6 and will not rotate with the bidirectional screw 6. The protective box 5 will also control the two air ducts to move in a direction close to each other through the multi-directional clamping mechanism and the clamping block 16 until the two air ducts abut against each other. At this time, the air ducts can be welded by the welding machine 2.

[0052] See also Figure 1-Figure 4 , Figure 6 , Figure 7 , a multi-directional clamping mechanism is arranged on the protection box 5, and a plurality of clamping blocks 16 are connected to the multi-directional clamping mechanism and are equidistantly distributed around the circumference. The multi-directional clamping mechanism can clamp the air duct through the clamping blocks 16, and the multi-directional clamping mechanism includes a support sleeve 10 fixedly installed in the protection box 5, a movable rod 11 is movably installed in the support sleeve 10, a chuck 12 is fixed at the end of the movable rod 11, and a toothing assembly is arranged in the chuck 12, wherein the toothing assembly includes a first rotating rod 13 rotatably installed in the chuck 12, and a first rotating rod 13 is fixed There is a first gear 14, and a second rotating rod 18 is rotatably installed on the chuck 12, and a second gear 19 meshing with the first gear 14 is fixed on the second rotating rod 18. A driven structure connected to the first rotating rod 13 is provided in the chuck 12, and the driven structure mentioned above includes a vortex disk 15 fixedly installed on the end of the first rotating rod 13, and a plurality of circumferentially equidistantly distributed sliding grooves 1201 are provided on the chuck 12, and the sliding grooves 1201 are slidably connected to the clamping block 16, and a limiting column 17 cooperating with the vortex disk 15 is fixed on the clamping block 16.

[0053] It should be noted that before welding the air duct, the required welded air duct needs to be clamped, and a protruding ring arranged in a spiral shape is provided on the vortex disk 15, and the limiting column 17 is clamped in the vortex disk 15. In the initial state, under the action of the vortex disk 15, the three clamping blocks 16 are controlled by the limiting column 17 to be located at the end of the stroke in the direction away from each other. At the same time, under the action of the follow-up rotating component, the movable rod 11 is located at the end of the stroke away from the supporting sleeve 10, so that the distance between the chuck 12 and the protective box 5 is maximized. When the air duct needs to be clamped, the air duct can be placed between the clamping blocks 16, and the second rotating rod 18 can be controlled to rotate. The specific control method includes driving the rotation by a handwheel installed at the end of the second rotating rod 18, thereby driving the second gear 19 to rotate. Since the second gear 19 is meshed with the first gear 14, the first rotating rod 13 can be controlled to rotate by the first gear 14. 3, the vortex disk 15 is driven to rotate, so as to control the clamping block 16 to move along the length direction of the slide slot 1201 through the limit column 17, and move in the direction of approaching each other. When the three clamping blocks 16 are in contact with the air duct, the air duct is fixed. At this time, under the action of the two-way translation component, the protection box 5 is controlled to move in the direction of approaching each other, so as to control the chuck 12 to move in the direction of approaching each other through the support sleeve 10 and the movable rod 11, so as to control the movement of the air duct through the clamping block 16. When the two air ducts are in contact with each other, the position of the chuck 12 no longer changes, and the protection box 5 continues to move, so that the size of the support sleeve 10 and the movable rod 11 is increased. At the same time, under the action of the follow-up rotating component, the movable rod 11 is controlled to rotate, so as to control the movement of the clamping block 16 through the chuck 12, so as to control the rotation of the two air ducts abutting each other, so as to ensure that the welding machine 2 can fully weld the circumferential weld.

[0054] Preferably, the vortex disk 15 has a self-locking function, which can prevent the position of the clamping block 16 from shaking, thereby reducing the clamping force on the air duct. After the clamping block 16 clamps the air duct, it can also play an auxiliary positioning role to ensure that the two air ducts are aligned with each other and are in the same central axis position to ensure the quality of welding.

[0055] See also Figure 4 , Figure 6 , Figure 8-Figure 10 , a follow-up rotating component is arranged on the multi-directional clamping mechanism. When the multi-directional clamping mechanism moves, the follow-up rotating component can control the rotation of the air duct through the clamping block 16. The follow-up rotating component includes a transverse groove 1102 and a spiral groove 1101 opened on the movable rod 11. A first limit block 1001 is fixed in the support sleeve 10 and is slidably engaged with the transverse groove 1102 and the spiral groove 1101. A first spring 20 is sleeved on the movable rod 11 and the support sleeve 10, and the two ends of the first spring 20 are respectively abutted against the protective box 5 and the chuck 12.

[0056] Furthermore, when performing circular welding on the air duct, it is necessary to control the rotation of the air duct after the welding machine 2 is aligned with the weld seam. Therefore, in the initial state, the first spring 20 is in a compressed state, so that the movable rod 11 is located at the end of the stroke away from the support sleeve 10. At this time, the first limit block 1001 is located at the end of the stroke of the spiral groove 1101 away from the transverse groove 1102. When the two air ducts are close to each other and before they abut, under the action of the first spring 20, the movable rod 11 is always located at the end of the stroke away from the support sleeve 10. When the two air ducts are in contact with each other, the movable rod 11 no longer moves. At this time, the support sleeve 10 continues to move, so that the first limit block 1001 slides along the spiral groove 1101 to drive the movable rod 11 to rotate. The movable rod 11 will drive the chuck 12 to rotate, so as to control the rotation of the air duct through the clamping block 16 to ensure that the air duct is fully welded.

[0057] Preferably, when the first limit block 1001 disengages from the spiral groove 1101 and enters the transverse groove 1102, the air duct rotates several circles and the air duct welding is completed. At this time, the air duct no longer rotates. Under the action of the push-release mechanism, the second rotating rod 18 can be controlled to reverse to control the clamping block 16 to move in a direction away from each other, thereby achieving automatic release of the air duct after welding is completed.

[0058] See also Figure 1-Figure 6 , Figure 8-Figure 10 , a push-release mechanism is arranged on the protective box 5 and connected to the multi-directional clamping mechanism, the push-release mechanism includes a rotating sleeve 21 rotatably mounted on the side wall of the chuck 12, a guide groove is opened on the rotating sleeve 21, a belt 27 connected to the second rotating rod 18 is sleeved on the rotating sleeve 21, a push ring 25 is fixed on the protective box 5, and a support assembly connected to the rotating sleeve 21 is provided on the chuck 12, wherein the support assembly includes a support column 22 fixedly mounted on the chuck 12 and symmetrically arranged, a movable plate 23 slidably connected to the rotating sleeve 21 is slidably mounted on the support column 22, a second limit block 2301 slidably connected to the guide groove is fixed in the movable plate 23, a conical column 26 is fixed on the movable plate 23, and a second spring 24 abutting against the movable plate 23 is sleeved on the support column 22; it also includes a push ring 25 fixedly mounted on the side wall of the protective box 5 and cooperating with the movable plate 23.

[0059] Furthermore, the guide groove can be divided into four sections, namely the first vertical groove 2101, the first inclined groove 2102, the second vertical groove 2103, and the second inclined groove 2104, and the first vertical groove 2101, the first inclined groove 2102, the second vertical groove 2103, and the second inclined groove 2104 are connected to each other in sequence. In the initial state, the second spring 24 is in a compressed state, so that the movable plate 23 is located at the end of the stroke away from the chuck 12, so that the second limit block 2301 is located at the connection position of the first vertical groove 2101 and the second inclined groove 2104. Before the two air ducts are in contact with each other, under the action of the first spring 20, the distance between the protection box 5 and the chuck 12 is maximized, so that the push ring 25 and the movable plate 23 are at the end of the travel direction away from each other. When the two air ducts are in contact with each other, the control chuck 12 no longer moves. At this time, the protection box 5 continues to move, so that the size of the support sleeve 10 and the movable rod 11 increases. At the same time, under the action of the spiral groove 1101 and the first limit block 1001, the control chuck 12 rotates to drive the air duct to rotate, ensuring that the welding machine 2 is welded along the circumferential direction of the air duct. Then, when welding is completed, the protective box 5 will also drive the push ring 25 to move. When welding is completed, the first limit block 1001 will disengage from the spiral groove 1101 and enter the transverse groove 1102. At this time, the chuck 12 will no longer rotate, and the push ring 25 will move to the position of abutting with the movable plate 23, and drive the second limit block 2301 to move along the length direction of the first vertical groove 2101. The movable plate 23 will also compress the second spring 24. The movable plate 23 will also drive the tensioning assembly to move through the conical column 26. When the tensioning assembly moves to cooperate with the belt 27 When the second limit block 2301 is in the first vertical slot 2101 and enters the first inclined slot 2102, the rotating sleeve 21 rotates to drive the second rotating rod 18 to rotate through the belt 27. The second rotating rod 18 controls the second gear 19 to move in the opposite direction of locking the air duct to control the clamping block 16 to move in the direction away from each other, so that the air duct is released. When the second limit block 2301 enters the connection position of the first inclined slot 2102 and the second vertical slot 2103, the air duct completes the release action.

[0060] Preferably, after the air duct is released, the protective box 5 can be controlled to reset. At this time, the first spring 20 is elastically released, so that the position of the chuck 12 remains unchanged, and the two air ducts always maintain the abutment position. The two protective boxes 5 will move in the direction away from each other, and the protective box 5 will also drive the push ring 25 to move, so that the second spring 24 is elastically released to push the movable plate 23 to always be in a fit state with the push ring 25. The movable plate 23 will also drive the second limit block 2301 to move along the length direction of the second vertical groove 2103 and control the movement of the conical column 26. When the conical column 26 is separated from the tensioning assembly, the tensioning assembly is reset and separated from the belt 27 again. At this time, the second limit block 2301 is separated from the first The second vertical groove 2103 is moved and enters the second inclined groove 2104, so that the rotating sleeve 21 rotates toward the initial angle. When the second limit block 2301 returns to the connection position of the second inclined groove 2104 and the first vertical groove 2101, the push ring 25 is separated from the movable plate 23. At this time, the first limit block 1001 will disengage from the horizontal groove 1102 and enter the spiral groove 1101, so that the chuck 12 is reversed to the initial angle. When the first limit block 1001 returns to the initial position in the spiral groove 1101, the protective box 5 will drive the chuck 12 to move synchronously through the supporting sleeve 10 and the movable rod 11. Since the clamping block 16 is separated from the air duct, the air duct will automatically detach to reduce subsequent operations. It can be seen that after the welding is completed, the present application can automatically release the air duct in the clamped state, which not only effectively solves the cumbersome operation problem caused by the need to shut down for release in the prior art, but also effectively avoids the problem of high breakage rate of finished welding products caused by the air duct welding being pulled apart due to failure to release the air duct in time, or the problem of reduced equipment service life caused by wear between the air duct and the clamping block 16.

[0061] See also Figure 4 , Figure 5 , Figure 8 , Fig. 9 , Fig.11 The multi-directional clamping mechanism is provided with a tensioning assembly connected with the push-release mechanism. When the protective box 5 moves, the push-release mechanism can adjust the cooperation state between the push-release mechanism and the multi-directional clamping mechanism through the tensioning assembly to control the clamping block 16 to release the air duct. The tensioning assembly includes a support guide rail 28 fixedly mounted on the chuck 12, a fixed rod 29 fixed in the support guide rail 28, a symmetrically arranged sliding block 31 is slidably mounted on the fixed rod 29, and a third spring 30 abutting against the sliding block 31 is sleeved on the fixed rod 29; it also includes a limiting groove 3101 opened on the sliding block 31, and an arc-shaped support plate 32 is fixed on the sliding block 31, and the arc-shaped support plate 32 cooperates with the belt 27.

[0062] Specifically, in the initial state, the third spring 30 is in a compressed state, so that the two sliding blocks 31 are in a mutually fitting state. Since the two sliding blocks 31 are provided with a limiting groove 3101, the two limiting grooves 3101 will be combined with each other to form a hole. At this time, the arc support plate 32 and the belt 27 are in a separated state, and the belt 27 is in a relaxed state, and the transmission between the second rotating rod 18 and the rotating sleeve 21 will not be performed. After the welding is completed, the push ring 25 will drive the movable plate 23 to move, so that the conical column 2 6 moves toward the limiting groove 3101. The conical column 26 is set in a conical column shape, and the circumferential radius of the end section is the smallest, and the circumferential radius of the middle section is the largest. When the conical column 26 is inserted into the limiting groove 3101, the sliding block 31 will give way and compress the third spring 30. The sliding block 31 will also drive the arc-shaped support plate 32 to move until the sliding block 31 moves to the end of the stroke. The arc-shaped support plate 32 abuts against the belt 27 and puts the belt 27 in a taut state. At this time, the belt 27 can push the second rotating rod 18 and the rotating sleeve The second limit block 2301 is in the first vertical slot 2101. When the second limit block 2301 enters the first inclined slot 2102, the rotating sleeve 21 will drive the second rotating rod 18 to rotate through the belt 27 to control the separation of the clamping block 16 from the air duct. When the second limit block 2301 moves to the connection position of the first inclined slot 2102 and the second vertical slot 2103, the protective box 5 can move toward the initial position. At this time, the conical column 26 will move in a direction away from the limit slot 3101. The third spring 30 is elastically released and drives the two sliding blocks 31 to move toward the initial position to control the arc support plate 32 to separate from the belt 27 again, thereby ensuring that the belt 27 cannot transmit power when the rotating sleeve 21 is reversed. By controlling the tightening and relaxation of the belt 27, it is possible to transmit power when the air duct is released, and not to transmit power when the air duct does not need to be clamped, so that after welding is completed, there is no need to stop the machine to release the air duct, thereby optimizing the overall welding process and ensuring welding efficiency.

[0063] A welding method for a stainless steel air duct welding device with auxiliary alignment, comprising the following steps:

[0064] Step 1: Place the air duct to be welded between the clamping blocks 16, and clamp the air duct through the clamping blocks 16 under the action of the multi-directional clamping mechanism;

[0065] Step 2: Under the action of the bidirectional translation assembly, the multi-directional clamping mechanism is controlled to move through the protection box 5, so as to control the air ducts to move in a direction close to each other through the clamping block 16;

[0066] Step 3: When the two air ducts are in contact with each other, the air ducts are welded by the welding machine 2. At the same time, under the action of the follow-up rotating assembly, the air ducts are controlled to rotate by the clamping block 16;

[0067] Step 4: After welding is completed, under the action of the protective box 5, the push release mechanism is controlled to move, and under the action of the tensioning assembly, the push release mechanism is controlled to cooperate with the multi-directional clamping mechanism to control the clamping block 16 to release the air duct.

[0068] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0069] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stainless steel duct welding device with auxiliary alignment, comprising: A workbench (1), and a welding machine (2) fixedly mounted on the workbench (1), wherein a symmetrically arranged fixing plate (3) is also fixed on the workbench (1); It is characterized by further comprising: A transverse guide rail (4) is fixedly mounted on the workbench (1); a symmetrically arranged protection box (5) is slidably mounted on the transverse guide rail (4); a bidirectional translation assembly connected to the protection box (5) is arranged on the fixed plate (3); the bidirectional translation assembly is used to drive the protection box (5) to move toward or away from each other; A multi-directional clamping mechanism is arranged on the protection box (5), and a plurality of clamping blocks (16) are connected to the multi-directional clamping mechanism and are equidistantly distributed around the circumference. The multi-directional clamping mechanism can clamp the air duct through the clamping blocks (16); A follow-up rotating assembly is arranged on the multi-directional clamping mechanism, and the follow-up rotating assembly can control the rotation of the air duct through the clamping block (16) when the multi-directional clamping mechanism moves; A push-release mechanism is arranged on the protection box (5) and connected to the multi-directional clamping mechanism. The multi-directional clamping mechanism is provided with a tensioning assembly connected to the push-release mechanism. When the protection box (5) moves, the push-release mechanism can adjust the coordination state between the push-release mechanism and the multi-directional clamping mechanism through the tensioning assembly to control the clamping block (16) to release the air duct.

2. The stainless steel air duct welding equipment with auxiliary alignment according to claim 1 is characterized in that: The bidirectional translation assembly comprises a bidirectional screw rod (6) rotatably mounted on the fixed plate (3), a symmetrically arranged threaded sleeve (7) being movably mounted on the bidirectional screw rod (6), and the threaded sleeve (7) is threadably matched with the bidirectional screw rod (6); It also includes a guide column (8) fixedly mounted on the fixed plate (3), on which a symmetrically arranged guide sleeve (9) is slidably mounted, and the guide sleeve (9) and the threaded sleeve (7) are fixedly connected to the protective box (5).

3. The stainless steel air duct welding equipment with auxiliary alignment according to claim 1 is characterized in that: The multi-directional clamping mechanism comprises a supporting sleeve (10) fixedly mounted in the protective box (5), a movable rod (11) movably mounted in the supporting sleeve (10), a chuck (12) fixed at the end of the movable rod (11), and a toothing assembly arranged in the chuck (12).

4. The stainless steel air duct welding equipment with auxiliary alignment according to claim 3 is characterized in that: The toothing assembly comprises a first rotating rod (13) rotatably mounted in the chuck (12), a first gear (14) being fixed on the first rotating rod (13), a second rotating rod (18) rotatably mounted on the chuck (12), a second gear (19) meshing with the first gear (14) being fixed on the second rotating rod (18), and a driven structure connected to the first rotating rod (13) being arranged in the chuck (12).

5. The stainless steel air duct welding equipment with auxiliary alignment according to claim 4 is characterized in that: The driven structure comprises a vortex disk (15) fixedly mounted on the end of the first rotating rod (13); the chuck (12) is provided with a plurality of circumferentially equidistantly distributed sliding grooves (1201); the sliding grooves (1201) are slidably connected to the clamping block (16); and a limiting column (17) cooperating with the vortex disk (15) is fixed on the clamping block (16).

6. The stainless steel air duct welding equipment with auxiliary alignment according to claim 3 is characterized in that: The follow-up rotating assembly includes a transverse groove (1102) and a spiral groove (1101) provided on the movable rod (11); a first limit block (1001) is fixed in the support sleeve (10) and is slidably engaged with the transverse groove (1102) and the spiral groove (1101); a first spring (20) is sleeved on the movable rod (11) and the support sleeve (10); two ends of the first spring (20) are respectively in contact with the protective box (5) and the chuck (12).

7. The stainless steel air duct welding equipment with auxiliary alignment according to claim 4, characterized in that: The push-release mechanism comprises a rotating sleeve (21) rotatably mounted on the side wall of the chuck (12), a guide groove being provided on the rotating sleeve (21), a belt (27) connected to the second rotating rod (18) being sleeved on the rotating sleeve (21), a push ring (25) being fixed on the protective box (5), and a supporting assembly connected to the rotating sleeve (21) being provided on the chuck (12).

8. The stainless steel air duct welding equipment with auxiliary alignment according to claim 7, characterized in that: The support assembly comprises a support column (22) fixedly mounted on the chuck (12) and symmetrically arranged, a movable plate (23) slidably mounted on the support column (22) and slidably connected to the rotating sleeve (21), a second limit block (2301) slidably connected to the guide groove is fixed in the movable plate (23), a conical column (26) is fixed on the movable plate (23), and a second spring (24) abutting against the movable plate (23) is sleeved on the support column (22); It also includes a push ring (25) fixedly mounted on the side wall of the protection box (5) and cooperating with the movable plate (23).

9. The stainless steel air duct welding equipment with auxiliary alignment according to claim 7, characterized in that: The tensioning assembly comprises a support rail (28) fixedly mounted on the chuck (12), a fixed rod (29) being fixed inside the support rail (28), a symmetrically arranged sliding block (31) being slidably mounted on the fixed rod (29), and a third spring (30) being sleeved on the fixed rod (29) and abutting against the sliding block (31); It also includes a limiting groove (3101) provided on the sliding block (31), an arc-shaped support plate (32) is fixed on the sliding block (31), and the arc-shaped support plate (32) cooperates with the belt (27).

10. A welding method for a stainless steel duct welding device with auxiliary alignment, using the stainless steel duct welding device with auxiliary alignment as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: placing the air duct to be welded between the clamping blocks (16), and clamping the air duct through the clamping blocks (16) under the action of the multi-directional clamping mechanism; Step 2: Under the action of the bidirectional translation assembly, the multidirectional clamping mechanism is controlled to move through the protection box (5), so as to control the air ducts to move in a direction close to each other through the clamping block (16); Step 3: When the two air ducts are in contact with each other, the air ducts are welded by the welding machine (2), and at the same time, the rotation of the air duct is controlled by the clamping block (16) under the action of the follow-up rotating assembly; Step 4: After welding is completed, under the action of the protective box (5), the push release mechanism is controlled to move, and under the action of the tensioning assembly, the push release mechanism is controlled to cooperate with the multi-directional clamping mechanism to control the clamping block (16) to release the air duct.

Images