Welding device for flange sleeve production

Abstract

The invention discloses a welding device for flange sleeve production, and relates to the field of welding equipment.The welding device comprises a welding machine base, a clamping mechanism and a lifting column are installed on the welding machine base, a flange sleeve is clamped on the clamping mechanism, a welding base is installed on the lifting column in a liftable mode, and the welding base is provided with a welding head. A welding head for welding is mounted on the welding seat; a mounting seat is mounted on the clamping mechanism, and a closed heat preservation device is mounted on the mounting seat. It needs to be explained that in the embodiment of the invention, during welding, the welding seam and the end of the flange sleeve are sealed, and hot air generated by the heating net is blown into the pipeline sleeve through the air blower, so that the temperature of the pipeline sleeve is kept, the influence of temperature change on welding can be avoided, and the welding quality is guaranteed; in addition, the inner wall of the flange sleeve is supported through the multiple supporting frames, so that the flange sleeve is stably supported during welding, displacement or gaps are avoided, and the welding quality can be further guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to a welding device for producing flange sleeves. Background Art

[0002] ‌Flange sleeve‌ is an important component used in pipeline systems. It can provide flexibility and scalability at the pipeline connection to adapt to the deformation of the pipeline caused by temperature changes, pressure fluctuations and other factors. The main function of the flange sleeve is to connect the pipeline and ensure the sealing and stability of the pipeline system. Due to its unique performance and application advantages, the flange sleeve has been widely used in pipeline systems in the fields of petroleum, chemical industry, electric power, construction, etc.

[0003] In the production process of flange sleeves, it is necessary to obtain the desired finished product through welding. The flange sleeves are clamped on the clamping mechanism, and the welding head is driven by the welding seat to weld the flange sleeves. The clamping mechanism completes a circle of welding by rotating, but generally, the temperature of the welding point is not controlled during welding, and the influence of ambient temperature on welding quality is also huge; among them, at low temperatures, the cooling rate of the welded joint increases, the sensitivity of cold cracks also increases, and the preheating effect becomes worse. In a low temperature environment, using the same heat source and the same time, the preheating effect cannot be achieved as expected, the effect of welding residual stress is aggravated, and the ambient temperature has an adverse effect on the welder's operation. Therefore, once these flange sleeves are used in a high-intensity environment, they are easily damaged, and then leakage or even explosion occurs, which poses a huge safety hazard. Summary of the invention

[0004] The object of the present invention is to provide a welding device for flange sleeve production to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A welding device for flange sleeve production, comprising a welding machine base, a clamping mechanism and a lifting column are installed on the welding machine base, the flange sleeve is clamped on the clamping mechanism, a welding seat is liftably installed on the lifting column, and a welding head for welding is installed on the welding seat; The clamping mechanism is provided with a mounting seat, and a closed heat-insulating device is installed on the mounting seat, and the closed heat-insulating device is sleeved on the flange sleeve for heat-insulating the flange sleeve; the closed heat-insulating device comprises a pipe sleeve, and the closed heat-insulating device is installed on the clamping mechanism, and a rotating sleeve is rotatably installed on the pipe sleeve, and the pipe sleeve and the rotating sleeve are both sleeved on the flange sleeve for sealing the flange sleeve and shielding and heat-insulating the flange sleeve, and an insertion box is rotatably installed on the rotating sleeve, and the welding head is inserted into the insertion box to weld the flange sleeve; It also includes an auxiliary sealing device, which is installed on the mounting seat and is used to seal the two ends of the flange sleeve and support the flange sleeve; the auxiliary sealing device includes two end sealing plates, and the two end sealing plates are respectively in contact with the two ends of the flange sleeve, and push-pull frames are movably installed on both sides of the mounting seat, and connecting frames are movably installed on the sides away from each other of the two push-pull frames, and the two connecting frames are respectively installed on the two end sealing plates; A weld detection alarm device is installed in the closed insulation device, and the weld detection alarm device is used to detect welding and alarm; the weld detection alarm device includes an integrated box, and the integrated box is installed on the rotating sleeve. A detection ball is movably installed in the integrated box, and the detection ball is used to detect welds. An alarm light for alarm is installed on the top side of the integrated box.

[0006] Furthermore, in a preferred embodiment of the present invention, the closed heat preservation device further comprises a blower, the blower is mounted on the mounting seat, the blower is connected to an air intake box, the air intake box is connected to an air intake pipe, and the air intake pipe is connected to the pipe sleeve; A heating net is installed in the air intake box, and the heating net provides hot air for the pipe sleeve.

[0007] Furthermore, in a preferred embodiment of the present invention, a shielding plate is provided in the air intake box, and the shielding plate is used to close the air intake pipe; A linkage frame is installed on the shielding plate, a telescopic slot is opened on one side of the mounting seat, the linkage frame is movably installed in the telescopic slot, a telescopic spring and an integrated switch are installed on the inner wall of one side of the telescopic slot, the integrated switch is electrically connected to the blower and the heating network, the other end of the telescopic spring is installed on the linkage frame, a push plate is installed on the push-pull frame, and the push-pull frame moves and drives the push plate to drive the linkage frame to move.

[0008] Furthermore, in a preferred embodiment of the present invention, two rotating seats are installed on the rotating sleeve, and swing shafts are rotatably installed on the two rotating seats, and the two swing shafts are respectively installed on both sides of the insertion box; A mounting bar is installed on the bottom side of the extending box, and a rotary sealing plate is rotatably installed on the mounting bar.

[0009] Furthermore, in a preferred embodiment of the present invention, a rotary hole is provided on the mounting bar, a rotary shaft is rotatably mounted in the rotary hole, and both ends of the rotary shaft are mounted on the rotary sealing plate; A rotary torsion spring is sleeved on the rotary shaft, and the other end of the rotary torsion spring is installed on the inner wall of the rotary hole.

[0010] Furthermore, in a preferred embodiment of the present invention, the auxiliary sealing device further comprises two support seats, the two support seats are respectively mounted on the two end sealing plates, and support frames are movably mounted on the three ends of the support seats, and the support frames are supported on the inner wall of the flange sleeve; Support springs are installed in the three ends of the support seat, and the three support springs are respectively installed on the three support frames.

[0011] Furthermore, in a preferred embodiment of the present invention, the ends of the two connecting frames close to each other are both installed with return springs, and the ends of the two return springs close to each other are respectively installed on the two push-pull frames.

[0012] Further, in a preferred embodiment of the present invention, an adapter frame is installed on the bottom side of the two push-pull frames, a rotating shaft is rotatably installed on the bottom side of the mounting seat, a rotating support frame and a handle are installed on the rotating shaft, two push-pull shafts are rotatably installed on the rotating support frame, and the two push-pull shafts are movably installed in the two adapter frames respectively; An insertion rod is movably mounted on the handle, a slot is provided on the bottom side of the mounting seat, and the insertion rod is inserted into the slot to restrict the handle.

[0013] Furthermore, in a preferred embodiment of the present invention, a push-back rod is movably installed in the integrated box, and the detection ball is installed on the push-back rod; A top plate is movably installed in the integrated box, the push rod is used to push the top plate to move, a return spring is installed on the top side of the top plate, and the top end of the return spring is installed on the top side inner wall of the integrated box.

[0014] Furthermore, in a preferred embodiment of the present invention, a warning light switch is installed on the top inner wall of the integrated box, and the warning light switch is electrically connected to the warning light; A trigger rod is installed on the top side of the top plate, and the trigger rod moves upward to trigger the alarm light switch.

[0015] The beneficial effects of a welding device for flange sleeve production proposed by the present invention are: In the present invention, by setting a closed insulation device, during welding, the pipe sleeve and the rotating sleeve are connected to the flange sleeve to seal the welding point, thereby preventing external dust, water vapor or other impurities from affecting the welding quality during welding. At the same time, the blower blows the hot air generated by the heating network into the pipe sleeve, so that the temperature of the pipe sleeve can be maintained, thereby avoiding the influence of temperature changes on welding and ensuring the quality of welding.

[0016] Furthermore, in the present invention, by setting an auxiliary sealing device, when the flange sleeve is welded, the two ends of the flange sleeve are sealed by two end sealing plates, which can further ensure the insulation effect of the flange sleeve and prevent the internal water vapor or impurities from affecting the welding effect during welding; in addition, in the process of sealing the end sealing plates, the inner wall of the flange sleeve is supported by multiple support frames, so that the flange sleeve obtains stable support during welding, avoids displacement or gaps, and ensures welding quality.

[0017] Furthermore, in the present invention, through the setting of the weld detection alarm device, when the clamping mechanism drives the flange sleeve to rotate, the weld of the flange sleeve continuously contacts the detection ball. At this time, if a larger protrusion appears, the detection ball is squeezed and drives the push rod to move. The push rod pushes the top plate to move, so that the top plate drives the return spring to be stressed. At the same time, the top plate drives the trigger rod to trigger the alarm light switch, so that the alarm light sends out an alarm, promptly reminding the staff that there is a problem with the welding, thereby avoiding subsequent problems caused by defective products not being discovered in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a welding device for flange sleeve production provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a closed heat-insulating device and an auxiliary closed device for a welding device used in flange sleeve production provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of the connection between a pipe sleeve and a rotating sleeve and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention; Figure 4 A schematic diagram of a partial structure of a blower and an air inlet box and other structures connected to a welding device for flange sleeve production provided by an embodiment of the present invention; Figure 5A schematic structural diagram of a welding device for flange sleeve production provided by an embodiment of the present invention, wherein an insertion box and a rotating seat and other structures are connected; Figure 6 A schematic diagram of a partial cross-sectional structure of a connection between a linkage frame and a mounting seat and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention; Figure 7 A schematic diagram of a partial cross-sectional structure of a welding device for flange sleeve production provided by an embodiment of the present invention, wherein an insertion box and a mounting bar and other structures are connected; Figure 8 A schematic cross-sectional view of the connection between a pipe sleeve and an end sealing plate and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention; Fig. 9 A schematic diagram of a partial structure of a welding device for flange sleeve production provided by an embodiment of the present invention, showing the connection between a support frame and a handle and other structures; Fig.10 A schematic structural diagram of a support base and a support frame and other structures connected to a welding device for flange sleeve production provided by an embodiment of the present invention; Fig.11 A schematic diagram of the structure of the connection between an integrated box and a warning light and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention; Fig.12 A schematic cross-sectional structural diagram of an integrated box of a welding device for flange sleeve production provided by an embodiment of the present invention.

[0019] In the figure: 1-welding machine base; 2-clamping mechanism; 3-flange sleeve; 4-lifting column; 5-welding seat; 6-welding head; 7-closed insulation device; 701-pipe sleeve; 702-rotating sleeve; 703-blower; 704-air inlet box; 705-air inlet pipe; 706-heating net; 707-shielding plate; 708-linkage frame; 709-telescopic slot; 710-telescopic spring; 711-integrated switch; 712-insertion box; 713-rotating seat; 714-swinging shaft; 715-rotating sealing plate; 716-mounting strip; 717-rotating shaft; 718-rotating hole; 719-rotating torsion spring; 720 -push plate; 8-auxiliary closing device; 801-end sealing plate; 802-push-pull frame; 803-connecting frame; 804-rotating support frame; 805-adapter frame; 806-push-pull shaft; 807-rotating shaft; 808-handle; 809-insertion rod; 810-slot; 811-support spring; 812-reset spring; 813-support seat; 814-support frame; 9-weld detection alarm device; 901-integrated box; 902-alarm light; 903-push back rod; 904-detection ball; 905-top plate; 906-reset spring; 907-alarm light switch; 908-trigger rod; 10-mounting seat. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In addition, in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical", "perpendicular" and the like do not mean that the components are required to be absolutely vertical, but can be slightly tilted. For example, "vertical" only means that its direction is more vertical than "horizontal", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to the attached manual Figure 1-12 The embodiment of the present invention provides a welding device for flange sleeve production, characterized in that it comprises a welding machine base 1, a clamping mechanism 2 and a lifting column 4 are installed on the welding machine base 1, a flange sleeve 3 is clamped on the clamping mechanism 2, a welding seat 5 is liftably installed on the lifting column 4, and a welding head 6 for welding is installed on the welding seat 5; Please refer to the instruction manual Figure 3-7 Furthermore, an embodiment of the present invention provides a welding device for flange sleeve production, wherein a mounting seat 10 is installed on the clamping mechanism 2, and a closed heat-insulating device 7 is installed on the mounting seat 10. The closed heat-insulating device 7 is sleeved on the flange sleeve 3 to insulate the flange sleeve 3; specifically, the closed heat-insulating device 7 includes a pipe sleeve 701, which is installed on the clamping mechanism 2, and a rotating sleeve 702 is rotatably installed on the pipe sleeve 701. Both the pipe sleeve 701 and the rotating sleeve 702 are sleeved on the flange sleeve 3 to seal the flange sleeve 3 and shield and insulate the flange sleeve 3. An insertion box 712 is rotatably installed on the rotating sleeve 702, and the welding head 6 is inserted into the insertion box 712 to weld the flange sleeve 3. It should be noted that, in the embodiment of the present invention, during welding, the pipe sleeve 701 and the rotating sleeve 702 are sleeved on the flange sleeve 3 to seal the welding point, so as to prevent external dust, water vapor or other impurities from affecting the welding quality during welding; in addition, during welding, the blower 703 blows the hot air generated by the heating network 706 into the pipe sleeve 701, so that the temperature of the pipe sleeve 701 can be maintained, thereby avoiding the influence of temperature changes on welding and ensuring the quality of welding.

[0027] More specifically, in the embodiment of the present invention, an auxiliary sealing device 8 is further included, which is installed on the mounting seat 10. The auxiliary sealing device 8 is used to seal the two ends of the flange sleeve 3 and support the flange sleeve 3; the auxiliary sealing device 8 includes two end sealing plates 801, and the two end sealing plates 801 are in contact with the two ends of the flange sleeve 3 respectively. Push-pull frames 802 are movably installed on both sides of the mounting seat 10, and connecting frames 803 are movably installed on the side away from each other of the two push-pull frames 802. The two connecting frames 803 are respectively installed on the two end sealing plates 801. It should be noted that in the embodiment of the present invention, when welding, the two end sealing plates 801 seal the two ends of the flange sleeve 3, which can further ensure the thermal insulation effect of the flange sleeve 3, and at the same time, it can prevent the internal water vapor or impurities from affecting the welding effect during welding.

[0028] More specifically, a weld detection alarm device 9 is installed in the closed heat preservation device 7, and the weld detection alarm device 9 is used to detect welding and alarm; the weld detection alarm device 9 includes an integrated box 901, which is installed on the rotating sleeve 702, and a detection ball 904 is movably installed in the integrated box 901, and the detection ball 904 is used to detect the weld, and an alarm light 902 for alarm is installed on the top side of the integrated box 901. It should be noted that in the embodiment of the present invention, when the clamping mechanism 2 drives the flange sleeve 3 to rotate, the weld of the flange sleeve 3 is continuously in contact with the detection ball 904. At this time, if a large protrusion appears, the detection ball 904 is squeezed, and then the alarm light 902 sends an alarm, so as to promptly remind the staff that there is a problem with the welding.

[0029] For further information, please refer to the attached manual. Figure 3-7 In the welding device for flange sleeve production provided by the embodiment of the present invention, the closed heat-insulating device 7 further comprises a blower 703, the blower 703 is mounted on the mounting seat 10, the blower 703 is connected to an air inlet box 704, the air inlet box 704 is connected to an air inlet pipe 705, and the air inlet pipe 705 is connected to the pipe sleeve 701; in addition, a heating net 706 is installed in the air inlet box 704, and the heating net 706 provides hot air for the pipe sleeve 701. It should be noted that in the embodiment of the present invention, the hot air generated by the heating net 706 is blown into the pipe sleeve 701 by the blowing of the blower 703, so that the temperature of the pipe sleeve 701 can be maintained, thereby avoiding the influence of temperature changes on welding and ensuring the quality of welding.

[0030] To be more specific, in the embodiment of the present invention, a baffle plate 707 is provided in the air intake box 704, and the baffle plate 707 is used to close the air intake pipe 705; in addition, a linkage frame 708 is installed on the baffle plate 707, a telescopic groove 709 is opened on one side of the mounting seat 10, and the linkage frame 708 is movably installed in the telescopic groove 709, and a telescopic spring 710 and an integrated switch 711 are installed on the inner wall of one side of the telescopic groove 709, and the integrated switch 711 is electrically connected to the blower 703 and the heating network 706, and the other end of the telescopic spring 710 is installed on the linkage frame 708, and a push plate 720 is installed on the push-pull frame 802, and the push-pull frame 802 moves to drive the push plate 720 to drive the linkage frame 708 to move. It should be noted that, in the embodiment of the present invention, when the end sealing plate 802 is reset, the linkage frame 708 is pushed to move by the push plate 720, and the linkage frame 708 moves in the telescopic groove 709, and the telescopic spring 710 is subjected to force, and at the same time the integrated switch 711 is triggered, so that the blower 703 and the heating net 706 are started synchronously, and when the linkage frame 708 moves, the baffle plate 707 is driven to separate from the air inlet pipe 705, thereby achieving the purpose of automatically supplying hot air.

[0031] More specifically, in the embodiment of the present invention, two rotating seats 713 are installed on the rotating sleeve 702, and swing shafts 714 are rotatably installed on the two rotating seats 713, and the two swing shafts 714 are respectively installed on the two sides of the insertion box 712; in addition, a mounting bar 716 is installed on the bottom side of the insertion box 712, and a rotary sealing plate 715 is rotatably installed on the mounting bar 716. It should be noted that in the embodiment of the present invention, when the welding head 6 swings, the insertion box 712 is driven to swing, so that the insertion box 712 rotates on the two rotating seats 713 through the two swing shafts 714.

[0032] Please continue to refer to the instruction manual Figure 3-7 , more specifically, in the embodiment of the present invention, a rotating hole 718 is provided on the mounting bar 716, a rotating shaft 717 is rotatably installed in the rotating hole 718, and both ends of the rotating shaft 717 are installed on the rotating sealing plate 715; in addition, a rotating torsion spring 719 is sleeved on the rotating shaft 717, and the other end of the rotating torsion spring 719 is installed on the inner wall of the rotating hole 718. It should be noted that in the embodiment of the present invention, when the welding head 6 is inserted into the insertion box 712, the rotating sealing plate 715 is pushed open, and the rotating sealing plate 715 rotates in the rotating hole 718 through the rotating shaft 717, and drives the rotating torsion spring 719 to be stressed, so that the smoke during welding can be discharged through the insertion box 712, and when the welding head 6 retracts, the rotating sealing plate 715 can be reset under the rebound force of the rotating torsion spring 719, so that the insertion box 712 can remain airtight.

[0033] For further information, please refer to the attached manual. Figure 8-10 , an embodiment of the present invention provides a welding device for flange sleeve production, the auxiliary sealing device 8 also includes two support seats 813, the two support seats 813 are respectively installed on the two end sealing plates 801, and the three ends of the support seats 813 are movably installed with support frames 814, and the support frames 814 are pressed against the inner wall of the flange sleeve 3; In addition, support springs 811 are installed in the three ends of the support seat 813, and the three support springs 811 are respectively installed on three support frames 814. It should be noted that in the embodiment of the present invention, during the closing process of the end sealing plate 801, the multiple support frames 814 are squeezed and retracted by the inner wall of the flange sleeve 3, and then the support frames 814 are retracted in the support seat 813, and the reset spring 812 is driven to bear force. Therefore, after the closing is completed, the support frame 814 is driven by the rebound force of the reset spring 812 to support the inner wall of the flange sleeve 3, so that the flange sleeve 3 obtains stable support during welding, avoids displacement or gaps, and ensures welding quality.

[0034] More specifically, in the embodiment of the present invention, the ends of the two connecting frames 803 close to each other are both installed with a return spring 812, and the ends of the two return springs 812 close to each other are respectively installed on the two push-pull frames 802. It should be noted that in the embodiment of the present invention, when the lengths of the flange sleeves 3 are different, the push-pull frame 802 drives the connecting frame 803 to reset, and is stretched by the flange sleeve 3, so that the connecting frame 803 moves in the push-pull frame 802, and at the same time, the return spring 812 is stressed, so that the purpose of closing the flange sleeves 3 of different lengths can be achieved.

[0035] Please continue to refer to the instruction manual Figure 8-10 , more specifically, in the embodiment of the present invention, the bottom sides of the two push-pull frames 802 are both installed with adapter frames 805, the bottom side of the mounting base 10 is rotatably installed with a rotating shaft 807, the rotating shaft 807 is installed with a rotating support frame 804 and a handle 808, the rotating support frame 804 is rotatably installed with two push-pull shafts 806, and the two push-pull shafts 806 are movably installed in the two adapter frames 805 respectively; In addition, a plug rod 809 is movably mounted on the handle 808, and a slot 810 is provided on the bottom side of the mounting seat 10, and the plug rod 809 is inserted into the slot 810 to restrict the handle 808. It should be noted that in the embodiment of the present invention, in the process of closing the flange sleeve 3, the plug rod 809 is pulled down to make the plug rod 809 disengage from the slot 810, unlock the handle 808, and then the handle 808 is rotated so that the handle 808 drives the rotating support frame 804 to rotate through the rotating shaft 807, and the rotating support frame 804 drives the two adapter frames 805 to move away from each other through the two push-pull shafts 806, and then the two adapter frames 805 drive the two connecting frames 803 to move away from each other through the two push-pull frames 802, so that the two connecting frames 803 drive the two end sealing plates 801 to move away from each other, and then the flange sleeve 3 is clamped on the clamping mechanism 2, and then the handle 808 is rotated in the opposite direction, so that the two end sealing plates 801 can close the two ends of the flange sleeve 3.

[0036] For further information, please refer to the attached manual. Figure 11-12, a welding device for flange sleeve production provided by the embodiment of the present invention, a push rod 903 is movably installed in the integrated box 901, and a detection ball 904 is installed on the push rod 903; in addition, a top plate 905 is movably installed in the integrated box 901, and the push rod 903 is used to push the top plate 905 to move, and a return spring 906 is installed on the top side of the top plate 905, and the top of the return spring 906 is installed on the top inner wall of the integrated box 901. It should be noted that in the embodiment of the present invention, the weld of the flange sleeve 3 is continuously in contact with the detection ball 904. At this time, if a large protrusion appears, the detection ball 904 is squeezed and drives the push rod 903 to move. The push rod 903 pushes the top plate 905 to move, so that the top plate 905 drives the return spring 906 to bear force. When detecting a normal weld, the return spring 906 pushes the top plate 905 to reset, and the detection ball 904 is automatically reset.

[0037] Please continue to refer to the instruction manual Figure 11-12 , more specifically, in the embodiment of the present invention, an alarm light switch 907 is installed on the inner wall of the top side of the integrated box 901, and the alarm light switch 907 is electrically connected to the alarm light 902; in addition, a trigger rod 908 is installed on the top side of the top plate 905, and the trigger rod 908 moves upward to trigger the alarm light switch 907. It should be noted that in the embodiment of the present invention, when a welding problem such as a bulge appears on the weld of the flange sleeve 3, the weld is in contact with the detection ball 904, and moves against the detection ball 904, so that the detection ball 904 drives the push-back rod 903 to move, and the push-back rod 903 pushes the top plate 905 to drive the trigger rod 908 to trigger the alarm light switch 907, so that the alarm light 902 sends an alarm, realizing the function of automatic alarm when a problem is detected.

[0038] In summary, the working principle of a welding device for flange sleeve production provided by an embodiment of the present invention is: During welding, the pipe sleeve 701 and the rotating sleeve 702 are sleeved on the flange sleeve 3 to seal the welding point to prevent external dust, water vapor or other impurities from affecting the welding quality during welding; specifically, during welding, the welding seat 5 drives the welding head 6 to extend into the insertion box 712, and pushes the rotary sealing plate 715 open, and the rotary sealing plate 715 rotates the rod in the rotary hole 718 through the rotary shaft 717, and drives the rotary torsion spring 719 to be stressed, so that the smoke during welding can be discharged through the insertion box 712, and can be kept when not welding. The welding head 6 is closed, and when the welding head 6 swings, it drives the insertion box 712 to swing, so that the insertion box 712 rotates on the two rotating seats 713 through the two swing shafts 714. When the clamping mechanism 2 drives the flange sleeve 3 to rotate, the welding head 6 drives the rotating sleeve 702 to remain stationary, so that the pipe sleeve 701 rotates on the rotating sleeve 702. At the same time, the blower 703 blows the hot air generated by the heating net 706 into the pipe sleeve 701, so that the temperature of the pipe sleeve 701 can be maintained, thereby avoiding the influence of temperature changes on welding and ensuring the quality of welding; Furthermore, in the process of the flange sleeve 3 being clamped on the clamping mechanism 2, the insertion rod 809 is first pulled down to disengage the insertion rod 809 from the slot 810, the handle 808 is unlocked, and then the handle 808 is rotated so that the handle 808 drives the rotating support frame 804 to rotate through the rotating shaft 807, and the rotating support frame 804 drives the two adapter frames 805 to move away from each other through the two push-pull shafts 806, and then the two adapter frames 805 drive the two connecting frames 803 to move away from each other through the two push-pull frames 802, and then the two connecting frames 803 drive the two end sealing plates 801 to move away from each other, and then the flange sleeve 3 is clamped on the clamping mechanism 2, and then the handle 808 is rotated in the opposite direction, so that the two end sealing plates 801 can seal the two ends of the flange sleeve 3, which can further ensure the thermal insulation effect of the flange sleeve 3, and at the same time, it can prevent the internal water vapor or impurities from affecting the welding effect during welding; In addition, during the closing process of the end sealing plate 801, the multiple support frames 814 are squeezed and retracted by the inner wall of the flange sleeve 3, so that the support frames 814 retract in the support seat 813 and drive the return spring 812 to be stressed. Therefore, after the closing is completed, the support frames 814 are driven by the resilience of the return spring 812 to support the inner wall of the flange sleeve 3, so that the flange sleeve 3 obtains stable support during welding, avoids displacement or gaps, and ensures the welding quality; in addition, when the end sealing plate 802 is reset, the linkage frame 708 is pushed to move by the push plate 720, and the linkage frame 708 moves in the telescopic groove 709, and the telescopic spring 710 is stressed. At the same time, the integrated switch 711 is triggered, so that the blower 703 and the heating net 706 are started synchronously, and when the linkage frame 708 moves, it drives the shielding plate 707 to separate from the air inlet pipe 705, so as to realize the purpose of automatically supplying hot air; Furthermore, when the clamping mechanism 2 drives the flange sleeve 3 to rotate, the weld of the flange sleeve 3 is continuously in contact with the detection ball 904. At this time, if a larger protrusion appears, the detection ball 904 is squeezed and drives the push rod 903 to move. The push rod 903 pushes the top plate 905 to move, so that the top plate 905 drives the return spring 906 to be subjected to force. At the same time, the top plate 905 drives the trigger rod 908 to trigger the alarm light switch 907, so that the alarm light 902 sends out an alarm, promptly reminding the staff that there is a problem with the welding, thereby avoiding subsequent problems caused by defective products not being discovered in time.

[0039] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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 welding device for flange sleeve production, characterized in that: It comprises a welding machine base, on which a clamping mechanism and a lifting column are installed, the clamping mechanism clamps a flange sleeve, the lifting column is liftably mounted with a welding seat, and a welding head for welding is installed on the welding seat; The clamping mechanism is provided with a mounting seat, and a closed heat-insulating device is installed on the mounting seat, and the closed heat-insulating device is sleeved on the flange sleeve for heat-insulating the flange sleeve; the closed heat-insulating device comprises a pipe sleeve, and the closed heat-insulating device is installed on the clamping mechanism, and a rotating sleeve is rotatably installed on the pipe sleeve, and the pipe sleeve and the rotating sleeve are both sleeved on the flange sleeve for sealing the flange sleeve and shielding and heat-insulating the flange sleeve, and an insertion box is rotatably installed on the rotating sleeve, and the welding head is inserted into the insertion box to weld the flange sleeve; It also includes an auxiliary sealing device, which is installed on the mounting seat and is used to seal the two ends of the flange sleeve and support the flange sleeve; the auxiliary sealing device includes two end sealing plates, and the two end sealing plates are respectively in contact with the two ends of the flange sleeve, and push-pull frames are movably installed on both sides of the mounting seat, and connecting frames are movably installed on the sides away from each other of the two push-pull frames, and the two connecting frames are respectively installed on the two end sealing plates; A weld detection alarm device is installed in the closed insulation device, and the weld detection alarm device is used to detect welding and alarm; the weld detection alarm device includes an integrated box, and the integrated box is installed on the rotating sleeve. A detection ball is movably installed in the integrated box, and the detection ball is used to detect welds. An alarm light for alarm is installed on the top side of the integrated box.

2. A welding device for flange sleeve production according to claim 1, characterized in that: The closed heat preservation device also includes a blower, which is mounted on the mounting seat, the blower is connected to an air intake box, the air intake box is connected to an air intake pipe, and the air intake pipe is connected to the pipe sleeve; A heating net is installed in the air intake box, and the heating net provides hot air for the pipe sleeve.

3. A welding device for flange sleeve production according to claim 2, characterized in that: A shielding plate is provided in the air intake box, and the shielding plate is used to close the air intake pipe; A linkage frame is installed on the shielding plate, a telescopic slot is opened on one side of the mounting seat, the linkage frame is movably installed in the telescopic slot, a telescopic spring and an integrated switch are installed on the inner wall of one side of the telescopic slot, the integrated switch is electrically connected to the blower and the heating network, the other end of the telescopic spring is installed on the linkage frame, a push plate is installed on the push-pull frame, and the push-pull frame moves and drives the push plate to drive the linkage frame to move.

4. A welding device for flange sleeve production according to claim 3, characterized in that: Two rotating seats are installed on the rotating sleeve, and swing shafts are rotatably installed on the two rotating seats, and the two swing shafts are respectively installed on both sides of the insertion box; A mounting bar is installed on the bottom side of the extending box, and a rotary sealing plate is rotatably installed on the mounting bar.

5. A welding device for flange sleeve production according to claim 4, characterized in that: The mounting bar is provided with a swivel hole, a swivel shaft is rotatably mounted in the swivel hole, and both ends of the swivel shaft are mounted on the swivel sealing plate; A rotary torsion spring is sleeved on the rotary shaft, and the other end of the rotary torsion spring is installed on the inner wall of the rotary hole.

6. A welding device for flange sleeve production according to claim 1, characterized in that: The auxiliary sealing device also includes two support seats, which are respectively mounted on the two end sealing plates, and the three ends of the support seats are movably mounted with support frames, which are supported on the inner wall of the flange sleeve; Support springs are installed in the three ends of the support seat, and the three support springs are respectively installed on the three support frames.

7. A welding device for flange sleeve production according to claim 6, characterized in that: The ends of the two connecting frames that are close to each other are both installed with return springs, and the ends of the two return springs that are close to each other are respectively installed on the two push-pull frames.

8. A welding device for flange sleeve production according to claim 7, characterized in that: An adapter frame is installed on the bottom side of the two push-pull frames, a rotating shaft is rotatably installed on the bottom side of the mounting seat, a rotating support frame and a handle are installed on the rotating shaft, two push-pull shafts are rotatably installed on the rotating support frame, and the two push-pull shafts are movably installed in the two adapter frames respectively; An insertion rod is movably mounted on the handle, a slot is provided on the bottom side of the mounting seat, and the insertion rod is inserted into the slot to restrict the handle.

9. A welding device for flange sleeve production according to claim 1, characterized in that: A push-back rod is movably installed in the integrated box, and the detection ball is installed on the push-back rod; A top plate is movably installed in the integrated box, the push rod is used to push the top plate to move, a return spring is installed on the top side of the top plate, and the top end of the return spring is installed on the top side inner wall of the integrated box.

10. A welding device for flange sleeve production according to claim 9, characterized in that: An alarm light switch is installed on the inner wall of the top side of the integrated box, and the alarm light switch is electrically connected to the alarm light; A trigger rod is installed on the top side of the top plate, and the trigger rod moves upward to trigger the alarm light switch.

Images