A welding device for the production of flange sleeves

Abstract

The present invention discloses a welding device for the production of flange sleeves, which relates to the field of welding equipment. It includes a welding base, on which a clamping mechanism and a lifting column are installed. A flange sleeve is clamped on the clamping mechanism, and a welding seat is liftably installed on the lifting column. A welding head for welding is installed on the welding seat; an installation seat is installed on the clamping mechanism, and a closed heat preservation device is installed on the installation seat. It should be noted that in the embodiment of the present invention, during welding, the weld seam and the end of the flange sleeve are closed, and hot air generated by the heating net is blown into the pipe sleeve by a blower, so that the temperature of the pipe sleeve can be maintained, thereby avoiding the influence of temperature change on welding and ensuring the welding quality; in addition, the inner wall of the flange sleeve is supported by a plurality of support frames, so that the flange sleeve obtains stable support during welding, avoiding displacement or gaps, and further ensuring the welding quality.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and particularly relates to a welding device for the production of flange sleeves. Background Art

[0002] A flange sleeve is an important component used in a pipeline system. It can provide flexibility and extensibility at the pipeline connection to adapt to the deformation of the pipeline caused by factors such as temperature changes and pressure fluctuations. The main function of the flange sleeve is to connect pipelines 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 the pipeline systems of fields such as petroleum, chemical industry, electric power, and construction.

[0003] During the production process of flange sleeves, the required finished products need to be obtained through welding. The flange sleeve is clamped on a clamping mechanism, and the welding seat drives the welding head to weld the flange sleeve. The clamping mechanism rotates to complete one - circle welding. However, generally during welding, the temperature at the welding site is not controlled, and the ambient temperature also has a huge impact on the welding quality. Among them, at low temperatures, the cooling rate of the welding joint increases, the cold crack sensitivity also increases, and the preheating effect becomes worse. Using the same heat source and the same time in a low - temperature environment, the desired preheating effect cannot be achieved, and the effect of welding residual stress is aggravated. The ambient temperature has an adverse impact on the operation of welders. Therefore, once these flange sleeves are used in an environment with higher strength, they are extremely likely to be damaged, and then problems such as leakage or even explosion may occur, posing a huge potential safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device for the production of flange sleeves to solve the problems raised in the above - mentioned background art.

[0005] To achieve the above - mentioned purpose, the present invention provides the following technical solutions:

[0006] A welding device for the production of flange sleeves, which includes 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 seat is installed on the lifting column in a liftable manner, and a welding head for welding is installed on the welding seat.

[0007] An installation base is mounted on the clamping mechanism, and a closed heat preservation device is mounted on the installation base. The closed heat preservation device is sleeved on the flange sleeve for heat preservation of the flange sleeve. The closed heat preservation device includes a pipe sleeve. The closed heat preservation device is mounted on the clamping mechanism. A rotating sleeve is rotatably mounted on the pipe sleeve. Both the pipe sleeve and the rotating sleeve are sleeved on the flange sleeve for closing the flange sleeve and shielding and heat preserving the flange sleeve. An insertion box is rotatably mounted on the rotating sleeve. The welding head extends into the insertion box to weld the flange sleeve.

[0008] It further includes an auxiliary closing device. The auxiliary closing device is mounted on the installation base and is used for closing both ends of the flange sleeve and supporting the flange sleeve. The auxiliary closing device includes two end plates. The two end plates are respectively in contact with both ends of the flange sleeve. Push-pull frames are movably mounted on both sides of the installation base. Connecting frames are movably mounted on the sides of the two push-pull frames away from each other. The two connecting frames are respectively mounted on the two end plates.

[0009] A weld detection and alarm device is mounted inside the closed heat preservation device. The weld detection and alarm device is used for detecting and alarming the welding. The weld detection and alarm device includes an integrated box. The integrated box is mounted on the rotating sleeve. A detection ball is movably mounted inside the integrated box. The detection ball is used for detecting the weld. An alarm lamp for alarming is mounted on the top side of the integrated box.

[0010] Further, in a preferred embodiment of the present invention, the closed heat preservation device further includes a blower. The blower is mounted on the installation base. An air inlet box is connected to the blower. An air inlet pipe is connected to the air inlet box. The air inlet pipe is connected to the pipe sleeve.

[0011] A heating grid is mounted inside the air inlet box. The heating grid provides hot air for the pipe sleeve.

[0012] Further, in a preferred embodiment of the present invention, a baffle is provided inside the air inlet box. The baffle is used for closing the air inlet pipe.

[0013] A linkage frame is mounted on the baffle. A telescopic groove is formed on one side of the installation base. The linkage frame is movably mounted inside the telescopic groove. A telescopic spring and an integrated switch are mounted on the inner wall of one side of the telescopic groove. The integrated switch is electrically connected to the blower and the heating grid. The other end of the telescopic spring is mounted on the linkage frame. A push plate is mounted on the push-pull frame. The movement of the push-pull frame drives the push plate to drive the linkage frame to move.

[0014] Further, in a preferred embodiment of the present invention, two rotating seats are installed on the rotating sleeve, and swing shafts are rotatably installed on both of the two rotating seats, and the two swing shafts are respectively installed on both sides of the insertion box;

[0015] An installation bar is installed on the bottom side of the insertion box, and a rotary sealing plate is rotatably installed on the installation bar.

[0016] Further, in a preferred embodiment of the present invention, a rotary hole is formed in the installation bar, a rotary shaft is rotatably installed in the rotary hole, and both ends of the rotary shaft are installed on the rotary sealing plate;

[0017] 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.

[0018] Further, in a preferred embodiment of the present invention, the auxiliary closing device further includes two support seats, the two support seats are respectively installed on the two end closing plates, three ends of each support seat are movably installed with support frames, and the support frames abut against the inner wall of the flange sleeve;

[0019] Support springs are installed in the three ends of each support seat, and the three support springs are respectively installed on the three support frames.

[0020] Further, in a preferred embodiment of the present invention, reset springs are installed at one end of each of the two connecting frames close to each other, and one end of each of the two reset springs close to each other is respectively installed on the two push-pull frames.

[0021] Further, in a preferred embodiment of the present invention, transfer frames are installed on the bottom sides of the two push-pull frames, a rotating shaft is rotatably installed on the bottom side of the installation 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 respectively movably installed in the two transfer frames;

[0022] A plug rod is movably installed on the handle, a slot is formed on the bottom side of the installation seat, and the plug rod is inserted into the slot to limit the handle.

[0023] Further, in a preferred embodiment of the present invention, a return push rod is movably installed in the integrated box, and the detection ball is installed on the return push rod;

[0024] A top plate is movably installed in the integrated box, the movement of the return push rod is used to push the top plate to move, a return top spring is installed on the top side of the top plate, and the top end of the return top spring is installed on the inner wall of the top side of the integrated box.

[0025] Furthermore, in a preferred embodiment of the present invention, an alarm lamp switch is installed on the inner wall of the top side of the integrated box, and the alarm lamp switch is electrically connected to the alarm lamp;

[0026] A trigger rod is installed on the top side of the top plate, and the upward movement of the trigger rod is used to trigger the alarm lamp switch.

[0027] The beneficial effects of a welding device for flange sleeve production proposed by the present invention are:

[0028] In the present invention, through the setting of the closed heat preservation device, during welding, the pipe sleeve and the rotating sleeve are sleeved on the flange sleeve to seal the welding part, avoiding the influence of external dust, water vapor or other impurities on the welding quality during welding. At the same time, the blower blows the hot air generated by the heating net into the pipe sleeve, so that the temperature of the pipe sleeve can be maintained, thereby avoiding the influence of temperature change on welding and ensuring the welding quality.

[0029] Furthermore, in the present invention, through the setting of the auxiliary closing device, when the flange sleeve is welded, the two end closing plates are used to close the two ends of the flange sleeve, which can further ensure the heat preservation effect of the flange sleeve and avoid the influence of internal water vapor or impurities on the welding effect during welding; in addition, during the closing process of the end closing plates, the inner wall of the flange sleeve is supported by a plurality of support frames, so that the flange sleeve obtains stable support during welding, avoiding displacement or the appearance of gaps, and ensuring the welding quality.

[0030] Furthermore, in the present invention, through the setting of the weld detection and 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 there is a large protrusion, the detection ball is squeezed and drives the return push rod to move. The return 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 lamp switch, so that the alarm lamp emits an alarm, timely reminding the staff that there is a problem with the welding, and thus avoiding subsequent problems caused by the failure to detect defective products in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural schematic diagram of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the connection of the closed heat preservation device and the auxiliary closing device and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the connection of the pipe sleeve and the rotating sleeve and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0034] Figure 4 Partial structural schematic diagram of the connection between the blower and the air inlet box and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0035] Figure 5 Structural schematic diagram of the connection between the insertion box and the rotating seat and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0036] Figure 6 Partial sectional structural schematic diagram of the connection between the linkage frame and the mounting seat and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0037] Figure 7 Partial sectional structural schematic diagram of the connection between the insertion box and the mounting strip and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0038] Figure 8 Sectional structural schematic diagram of the connection between the pipe sleeve and the end sealing plate and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0039] Figure 9 Partial structural schematic diagram of the connection between the support frame and the handle and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0040] Figure 10 Structural schematic diagram of the connection between the support seat and the support frame and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0041] Figure 11 Structural schematic diagram of the connection between the integrated box and the alarm lamp and other structures of a welding device for flange sleeve production provided by an embodiment of the present invention;

[0042] Figure 12 Sectional structural schematic diagram of the integrated box of a welding device for flange sleeve production provided by an embodiment of the present invention.

[0043] In the figure: 1 - Welding base; 2 - Clamping mechanism; 3 - Flange sleeve; 4 - Lifting column; 5 - Welding seat; 6 - Welding head; 7 - Enclosed heat preservation device; 701 - Pipe sleeve; 702 - Rotating sleeve; 703 - Blower; 704 - Air inlet box; 705 - Air inlet pipe; 706 - Heating grid; 707 - Baffle plate; 708 - Linkage frame; 709 - Telescopic groove; 710 - Telescopic spring; 711 - Integrated switch; 712 - Insertion box; 713 - Rotating seat; 714 - Swing shaft; 715 - Rotary sealing plate; 716 - Mounting strip; 717 - Rotary shaft; 718 - Rotary hole; 719 - Rotary torsion spring; 720 - Pushing 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 - Plug rod; 810 - Slot; 811 - Support spring; 812 - Return spring; 813 - Support seat; 814 - Support frame; 9 - Weld detection and alarm device; 901 - Integrated box; 902 - Alarm lamp; 903 - Return push rod; 904 - Detection ball; 905 - Top plate; 906 - Return top spring; 907 - Alarm lamp switch; 908 - Trigger rod; 10 - Mounting seat. Detailed implementation manners

[0044] To make the objectives, 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 with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0045] 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 claimed present invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0046] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0047] In addition, in the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0048] In addition, terms such as "horizontal", "vertical", "perpendicular", etc. do not mean that the component is required to be absolutely vertical, but can be slightly inclined. For example, "vertical" only means that its direction is more vertical relative to "horizontal", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0049] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "install", "connect", "couple" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Please refer to the accompanying Figures 1-12 As shown in the accompanying drawings, a welding device for flange sleeve production provided by an embodiment of the present invention is characterized in that it includes 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;

[0051] Please refer to the accompanying Figures 3-7, Further, a welding device for flange sleeve production provided by an embodiment of the present invention has a mounting seat 10 installed on the clamping mechanism 2, and a closed heat preservation device 7 is installed on the mounting seat 10. The closed heat preservation device 7 is sleeved on the flange sleeve 3 for heat preservation of the flange sleeve 3. Specifically, the closed heat preservation device 7 includes a pipe sleeve 701. The closed heat preservation device 7 is installed on the clamping mechanism 2. 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 close the flange sleeve 3 and shield it for heat preservation. An insertion box 712 is rotatably installed on the rotating sleeve 702, and the welding head 6 extends 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 close the welding area, preventing external dust, moisture, or other impurities from affecting the welding quality. In addition, during welding, the blower 703 blows the hot air generated by the heating grid 706 into the pipe sleeve 701 to keep the temperature of the pipe sleeve 701 constant, thereby avoiding the influence of temperature change on welding and ensuring the welding quality.

[0052] More specifically, in the embodiment of the present invention, an auxiliary closing device 8 is further included. The auxiliary closing device 8 is installed on the mounting seat 10 and is used to close both ends of the flange sleeve 3 and support the flange sleeve 3. The auxiliary closing device 8 includes two end plates 801. The two end plates 801 are respectively in contact with both ends of the flange sleeve 3. Push-pull frames 802 are movably installed on both sides of the mounting seat 10. Connecting frames 803 are movably installed on the sides of the two push-pull frames 802 away from each other, and the two connecting frames 803 are respectively installed on the two end plates 801. It should be noted that in the embodiment of the present invention, during welding, the two end plates 801 close both ends of the flange sleeve 3, which can further ensure the heat preservation effect of the flange sleeve 3 and avoid internal moisture or impurities from affecting the welding effect during welding.

[0053] Even more specifically, a weld detection and alarm device 9 is installed in the closed heat preservation device 7. The weld detection and alarm device 9 is used to detect and alarm during welding. The weld detection and alarm device 9 includes an integrated box 901. The integrated box 901 is installed on the rotating sleeve 702. A detection ball 904 is movably installed in the integrated box 901 for detecting the weld. An alarm lamp 902 for alarming 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 continuously contacts the detection ball 904. At this time, if there is a large protrusion, the detection ball 904 will be squeezed, causing the alarm lamp 902 to give an alarm, achieving the purpose of timely reminding the staff that there is a problem with the welding.

[0054] Further, please refer to the attached drawings of the specification Figures 3-7 As for a welding device for flange casing production provided by an embodiment of the present invention, the closed heat preservation device 7 further includes a blower 703. The blower 703 is installed on the mounting seat 10. An air inlet box 704 is connected to the blower 703. An air inlet pipe 705 is connected to the air inlet box 704. The air inlet pipe 705 is connected to the pipe sleeve 701. In addition, a heating grid 706 is installed in the air inlet box 704. The heating grid 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 grid 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 change on welding and ensuring the welding quality.

[0055] More specifically, in the embodiment of the present invention, a baffle 707 is provided in the air inlet box 704. The baffle 707 is used to block the air inlet pipe 705. In addition, a linkage frame 708 is installed on the baffle 707. A telescopic groove 709 is provided on one side of the mounting seat 10. The linkage frame 708 is movably installed in the telescopic groove 709. A telescopic spring 710 and an integrated switch 711 are installed on the inner wall of one side of the telescopic groove 709. The integrated switch 711 is electrically connected to the blower 703 and the heating grid 706. The other end of the telescopic spring 710 is installed on the linkage frame 708. A push plate 720 is installed on the push-pull frame 802. The movement of the push-pull frame 802 drives 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 801 is reset, the linkage frame 708 is driven to move by the push plate 720. The linkage frame 708 moves in the telescopic groove 709, so that the telescopic spring 710 is stressed, and at the same time the integrated switch 711 is triggered, so that the blower 703 and the heating grid 706 are started synchronously, and when the linkage frame 708 moves, it drives the baffle 707 to disengage from the air inlet pipe 705, achieving the purpose of automatically supplying hot air.

[0056] Even more specifically, in the embodiment of the present invention, two rotating seats 713 are installed on the rotating sleeve 702. Swing shafts 714 are rotatably installed on both of the two rotating seats 713. The two swing shafts 714 are respectively installed on both sides of the insertion box 712. In addition, a mounting strip 716 is installed on the bottom side of the insertion box 712. A rotary sealing plate 715 is rotatably installed on the mounting strip 716. It should be noted that in the embodiment of the present invention, 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.

[0057] Please continue to refer to the attached drawings of the specification Figures 3-7, Further specifically, in the embodiments of the present invention, a rotary hole 718 is formed in the mounting strip 716, and a rotary shaft 717 is rotatably mounted in the rotary hole 718. Both ends of the rotary shaft 717 are mounted on the rotary sealing plate 715; in addition, a rotary torsion spring 719 is sleeved on the rotary shaft 717, and the other end of the rotary torsion spring 719 is mounted on the inner wall of the rotary hole 718. It should be noted that in the embodiments of the present invention, when the welding head 6 extends into the insertion box 712, the rotary sealing plate 715 is pushed open. The rotary sealing plate 715 rotates in the rotary hole 718 through the rotary shaft 717 and drives the rotary torsion spring 719 to be stressed, so that the fumes during welding can be discharged through the insertion box 712. When the welding head 6 retracts, the rotary torsion spring 719 helps the rotary sealing plate 715 to reset under its resilience force, so that the insertion box 712 can remain airtight.

[0058] Further, please refer to the accompanying drawings of the specification Figures 8-10 , A welding device for flange sleeve production provided by an embodiment of the present invention, the auxiliary closing device 8 further includes two support seats 813, the two support seats 813 are respectively mounted on the two end closing plates 801, and three ends of the support seat 813 are all movably mounted with support frames 814, and the support frames 814 abut against the inner wall of the flange sleeve 3;

[0059] 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 the three support frames 814. It should be noted that in the embodiments of the present invention, during the closing process of the end closing plate 801, the plurality of support frames 814 are squeezed and retracted by the inner wall of the flange sleeve 3, and then 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 force 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, avoiding displacement or gaps, and ensuring the welding quality.

[0060] Further specifically, in the embodiments of the present invention, return springs 812 are installed at the ends of the two connecting frames 803 close to each other, 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 embodiments 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, achieving the purpose of closing flange sleeves 3 of different lengths.

[0061] Please continue to refer to the accompanying drawings of the specification Figures 8-10, More specifically, in the embodiments of the present invention, transfer frames 805 are installed on the bottom sides of both push-pull frames 802. A rotating shaft 807 is rotatably installed on the bottom side of the mounting base 10. A rotating support frame 804 and a handle 808 are installed on the rotating shaft 807. Two push-pull shafts 806 are rotatably installed on the rotating support frame 804, and the two push-pull shafts 806 are respectively movably installed in the two transfer frames 805;

[0062] In addition, a plug rod 809 is movably installed on the handle 808. A slot 810 is formed on the bottom side of the mounting base 10. The plug rod 809 is inserted into the slot 810 to limit the handle 808. It should be noted that in the embodiments of the present invention, during the process of closing the flange sleeve 3, the plug rod 809 is pulled down so that the plug rod 809 disengages from the slot 810, unlocking the handle 808. Then the handle 808 is rotated so that the handle 808 drives the rotating support frame 804 to rotate through the rotating shaft 807. The rotating support frame 804 drives the two transfer frames 805 to move away from each other through the two push-pull shafts 806. Furthermore, the two transfer 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 closing plates 801 to move away from each other. Then the flange sleeve 3 is clamped on the clamping mechanism 2, and then the handle 808 is rotated in the reverse direction, and the two end closing plates 801 can close the two ends of the flange sleeve 3.

[0063] Further, please refer to the attached Figures 11-12 , A welding device for flange sleeve production provided by the embodiments of the present invention. A return push rod 903 is movably installed in the integrated box 901, and a detection ball 904 is installed on the return push rod 903; in addition, a top plate 905 is movably installed in the integrated box 901. The movement of the return push rod 903 is used to push the top plate 905 to move. A return spring 906 is installed on the top side of the top plate 905, and the top end of the return spring 906 is installed on the inner wall of the top side of the integrated box 901. It should be noted that in the embodiments of the present invention, the weld seam of the flange sleeve 3 continuously contacts the detection ball 904. At this time, if there is a large protrusion, the detection ball 904 is squeezed and drives the return push rod 903 to move. The return push rod 903 pushes the top plate 905 to move, so that the top plate 905 drives the return spring 906 to be stressed. When detecting a normal weld seam, the return spring 906 pushes the top plate 905 to reset, realizing the automatic reset of the detection ball 904.

[0064] Please continue to refer to the attached Figures 11-12, Further specifically, in the embodiment of the present invention, an alarm lamp switch 907 is installed on the inner wall of the top side of the integrated box 901, and the alarm lamp switch 907 is electrically connected to the alarm lamp 902; in addition, a trigger rod 908 is installed on the top side of the top plate 905, and the upward movement of the trigger rod 908 is used to trigger the alarm lamp switch 907. It should be noted that in the embodiment of the present invention, when there are welding problems such as protrusions in the weld of the flange sleeve 3, the weld contacts the detection ball 904 and pushes the detection ball 904 to move, thereby causing the detection ball 904 to drive the return push rod 903 to move. The return push rod 903 pushes the top plate 905 to drive the trigger rod 908 to trigger the alarm lamp switch 907, so that the alarm lamp 902 emits an alarm, realizing the function of automatic alarm when a problem is detected.

[0065] In summary, the working principle of a welding device for flange sleeve production provided by the embodiment of the present invention is as follows:

[0066] During welding, the pipe sleeve 701 and the rotating sleeve 702 are sleeved on the flange sleeve 3 to seal the welding area, preventing external dust, moisture 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 push open the rotary sealing plate 715. The rotary sealing plate 715 rotates through the return shaft 717 in the rotary hole 718, and drives the rotary torsion spring 719 to be stressed, so that the welding fumes can be discharged through the insertion box 712 during welding and remain closed when not welding. 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 grid 706 into the pipe sleeve 701 to keep the temperature of the pipe sleeve 701, thereby avoiding the influence of temperature change on welding and ensuring the welding quality;

[0067] Further, during the process of clamping the flange sleeve 3 on the clamping mechanism 2, first pull down the insertion rod 809 to disengage the insertion rod 809 from the insertion slot 810, unlock the handle 808, and then rotate the handle 808 so that the handle 808 drives the rotating support frame 804 to rotate through the rotating shaft 807. The rotating support frame 804 drives the two adapter frames 805 to move away from each other through the two push-pull shafts 806. Furthermore, the two adapter frames 805 drive the two connecting frames 803 to move away from each other through the two push-pull frames 802. Furthermore, the two connecting frames 803 drive the two end sealing plates 801 to move away from each other. Then, clamp the flange sleeve 3 on the clamping mechanism 2, and then rotate the handle 808 in the reverse direction, so that the two end sealing plates 801 can seal the two ends of the flange sleeve 3, which can further ensure the heat preservation effect of the flange sleeve 3 and avoid the influence of internal water vapor or impurities on the welding effect during welding;

[0068] In addition, during the closing process of the end sealing plate 801, 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 seats 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, avoiding displacement or the appearance of gaps and ensuring the welding quality. In addition, when the end sealing plate 801 is reset, the linkage frame 708 is pushed to move by the push plate 720. 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 grid 706 are started synchronously, and the baffle 707 is driven by the movement of the linkage frame 708 to disengage from the air inlet pipe 705, realizing the purpose of automatically supplying hot air;

[0069] Furthermore, when the clamping mechanism 2 drives the flange sleeve 3 to rotate, the weld seam of the flange sleeve 3 continuously contacts the detection ball 904. At this time, if there is a large protrusion, the detection ball 904 is squeezed, and the return push rod 903 is driven to move. The return push rod 903 pushes the top plate 905 to move, so that the top plate 905 drives the return spring 906 to be stressed. At the same time, the top plate 905 drives the trigger rod 908 to trigger the alarm lamp switch 907, so that the alarm lamp 902 emits an alarm, timely prompting the staff that there is a problem with the welding, and thus avoiding subsequent problems caused by the failure to detect defective products in time.

[0070] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and 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.

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