A groove cutting and welding device for stainless steel elbow connection

Abstract

The present invention discloses a groove cutting and welding device for stainless steel elbow connection, and relates to the technical field of pipeline cutting equipment. The present invention provides a groove cutting and welding device for stainless steel elbow connection, including a cutting and welding machine, etc. The cutting and welding machine is slidably connected with a pair of guide belts, and the guide belts are used to install the cutting and welding machine on the surface of the stainless steel pipe. The cutting and welding machine is rotatably connected with a nozzle, and the cutting and welding machine is clamped with a mounting frame, and the mounting frame is fixed with a pair of axially distributed electromagnets, and the electromagnets and the stainless steel pipes are magnetically matched. The mounting frame is installed with a pulley assembly, and the mounting frame is fixed with a motor, and the pulley assembly is fixed with a pair of axially distributed suction cups. The present invention can adsorb and fix the part of the stainless steel pipe to be cut off during cutting through components such as electromagnets and suction cups, so as to avoid deflection and bending or even breaking of the remaining connection area, thereby causing uneven incisions and defects such as burrs, thereby improving the cutting quality of this groove cutting and welding device.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cutting equipment, in particular to a groove cutting and welding device for stainless steel elbow connection. Background Art

[0002] Cutting and welding equipment is a multifunctional tool, mainly used for cutting and welding of metal materials. It combines the two functions of cutting and welding and is widely used in manufacturing, construction, maintenance and other fields. Before connecting the stainless steel pipe to the elbow, the pipe needs to be cut, and in order to improve the quality and strength of subsequent welding, a groove is usually formed at the pipe cut during cutting.

[0003] In the patent with publication number CN111618391A, a large-diameter pipe ring cutting device based on BIM is disclosed, including a base device, a driving device and a cutting device, etc. The base device includes an arc-shaped base, etc. The arc-shaped base is arranged on the outer surface of the pipe to be cut, and the driving device includes a gear groove, etc. The end of the arc-shaped base at one end of the axial direction is connected to the inner surface of the gear groove, and an arc-shaped groove for positioning the main gear is provided in the gear groove. The bottom ends of the two sprocket brackets are connected to the side wall of one side of the gear groove, and the two transmission sprockets are respectively installed on one side of the top of the two sprocket brackets, and the transmission chain is connected between the two transmission sprockets. The two driving gears are respectively installed on the back of the two sprocket brackets. On one side of the drive sprocket, the rotating handle is connected to the rotating shaft of one of the drive sprockets, and the two driving gears are respectively meshed with the main gear. This patent has a fast and efficient pipe cutting speed and can efficiently complete large pipe cutting operations. However, this pipe ring cutting device does not limit and fix the part of the pipe to be cut during cutting, so that when the pipe is about to be cut, the connection area between the main pipe and the part of the pipe to be cut is small, and it is difficult to effectively support the part of the pipe to be cut. Therefore, the connection area between the two is prone to bending or even breaking, resulting in the incision of this pipe ring cutting device is not smooth enough and the cutting quality is poor.

[0004] Based on the above situation, the present invention proposes a groove cutting and welding device for stainless steel elbow connection which ensures a smooth cut. Summary of the invention

[0005] In order to overcome the disadvantages of the existing pipe ring cutting device that the part of the pipe to be cut off is not limited and fixed during cutting, so that when the pipe is about to be cut, the connection area between the main pipe and the part of the pipe to be cut off is small and it is difficult to effectively support the part of the pipe to be cut off, so the connection area between the two is prone to bending or even breaking, resulting in the incision of the pipe ring cutting device is not smooth and the cutting quality is poor. The present invention provides a groove cutting and welding device for stainless steel elbow connection that ensures a smooth incision.

[0006] A groove cutting and welding device for stainless steel elbow connection comprises a guide belt, a cutting and welding machine, a nozzle, a mounting frame, an electromagnet, a pulley assembly, a motor and a suction cup, wherein the cutting and welding machine is slidably connected with a pair of guide belts, the guide belts are used to install the cutting and welding machine on the surface of a stainless steel pipe, the cutting and welding machine is rotatably connected with the nozzle, the cutting and welding machine is clamped with a mounting frame, the mounting frame is fixedly connected with a pair of axially distributed electromagnets, the electromagnets are magnetically matched with the stainless steel pipe, the mounting frame is installed with a pulley assembly, wherein the pulley assembly comprises two pulleys and a belt, and a belt is wound between the two pulleys, the mounting frame is fixedly connected with a motor, the output end of the motor is fixedly connected to a pulley on one side of the pulley assembly through a coupling, the belt in the pulley assembly is fixedly connected with a pair of axially distributed suction cups, and the suction cups are in contact with the stainless steel pipe.

[0007] Furthermore, the cutting and welding machine is threadedly connected with bolts, and the bolts are extruded and matched with the nozzle.

[0008] Furthermore, the guide belt has the function of adjusting its own length.

[0009] Furthermore, it also includes a limiting mechanism, which is arranged on the mounting frame, and the limiting mechanism includes a mounting plate frame, an electric push rod, a pressure frame, a turntable, a winding rod, a magnetic block, a fixed rod and a series rope. The mounting plate frame is fixed to the mounting frame, the mounting plate frame is fixed with the electric push rod, the mounting plate frame is slidably connected with the pressure frame, the telescopic end of the electric push rod is fixed to the pressure frame, the mounting plate frame is rotatably connected with the winding rod, the winding rod is fixed with the turntable, the winding rod is wrapped with paired series ropes, the series ropes are slidably connected to the mounting plate frame, the series ropes are fixed with equidistantly distributed magnetic blocks, the magnetic blocks are slidably connected to the mounting plate frame, the magnetic blocks are extruded and matched with the pressure frame, the magnetic blocks are magnetically matched with the stainless steel pipe, fixed rods are fixed between the paired magnetic blocks, and the fixed rods are slidably connected to the mounting plate frame.

[0010] Furthermore, it also includes a supporting mechanism, which is arranged on the mounting frame, and the supporting mechanism includes rollers, a guide frame, a first elastic component, a movable frame, a screw rod and a connecting frame. The guide frame is fixed to the mounting frame, the guide frame is slidably connected to the movable frame, the guide frame is rotatably connected to the screw rod, the screw rod is threadedly connected to the movable frame, the movable frame is slidably connected to the connecting frame, a pair of first elastic components are fixed between the connecting frame and the movable frame, the connecting frame is rotatably connected to the roller, and the roller is in contact and cooperate with the stainless steel pipe.

[0011] Furthermore, the roller is fixedly connected with a rubber pad.

[0012] Furthermore, it also includes a cleaning mechanism, which is arranged on the mounting frame. The cleaning mechanism includes a support frame, a brush and a second elastic component. The support frame is fixed to the mounting frame, and a pair of brushes are slidably connected to the support frame. A pair of second elastic components are fixed between the brushes and the support frame, and the brushes are in contact with the stainless steel pipe.

[0013] Furthermore, the brush is made of nylon.

[0014] Furthermore, it also includes a display mechanism, which is arranged on a mounting frame. The display mechanism includes a protective shell, a connecting rod and an indicator block. The protective shell is fixed to the mounting frame, the protective shell is rotatably connected to the connecting rod, the connecting rod is fixed to the indicator block, and the connecting rod is slidably connected to the nozzle.

[0015] Furthermore, the protective housing is provided with angle scales which are evenly distributed around the circumference. Beneficial Effects

[0016] 1. The present invention uses components such as electromagnets and suction cups to adsorb and fix the part of the stainless steel pipe to be cut off during cutting, thereby preventing it from deflecting and causing the remaining connection area to bend or even break, thereby causing defects such as uneven incisions and burrs, thereby improving the cutting quality of the groove cutting and welding device for stainless steel elbow connections.

[0017] 2. The present invention can limit and fix the relative position between the main pipe and the part of the pipe to be cut off through components such as magnetic blocks and fixing rods, thereby preventing the part of the stainless steel pipe to be cut off from rotating under the action of gravity, thereby causing the connection area between the two to bend or even break, thereby improving the cutting quality of the groove cutting and welding device for stainless steel elbow connections.

[0018] 3. The present invention uses components such as rollers and screws to not only support the part of the stainless steel pipe to be cut off to avoid bending or even breaking in the connection area, but also guide the movement of the cutting and welding machine to avoid deviation of the travel route of the cutting and welding machine during movement, thereby improving the quality and accuracy of the groove cutting and welding device for stainless steel elbow connection.

[0019] 4. The present invention can clean impurities such as dust, oil stains and rust on the surface of the stainless steel pipe in advance through components such as a brush and a second elastic component, thereby preventing impurities from affecting the cutting effect and causing uneven cutting or defects, thereby improving the cutting quality of the groove cutting and welding device for stainless steel elbow connections.

[0020] 5. The present invention uses components such as a protective housing and an indicator block to enable workers to accurately adjust the rotation angle of the nozzle according to needs, thereby accurately controlling the groove angle at the incision of the stainless steel pipe, thereby improving the cutting accuracy of the groove cutting and welding device for stainless steel elbow connections. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the stainless steel pipe, guide belt, cutting and welding machine and other components of the present invention.

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the electromagnet, pulley assembly, motor and other components of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the pulley assembly, motor, suction cup and other components of the present invention.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the mounting plate frame, electric push rod and pressing frame and other components of the present invention.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the electric push rod, pressure frame, turntable and other components of the present invention.

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the winding rod, magnetic block, fixing rod and other components of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the magnetic block, the fixing rod and the series rope of the present invention.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the roller, guide frame, first elastic component and other components of the present invention.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the first elastic component, the movable frame, the screw rod and other components of the present invention.

[0031] Fig.11 It is a schematic diagram of the three-dimensional structure of the support frame, the brush, the second elastic component and other components of the present invention.

[0032] Fig.12 It is a three-dimensional structural schematic diagram of the protective housing, connecting rod, indicating block and other components of the present invention.

[0033] The meanings of the reference numerals in the figure are as follows: 1. stainless steel pipe, 101. guide belt, 11. cutting and welding machine, 12. nozzle, 13. mounting frame, 14. electromagnet, 15. pulley assembly, 16. motor, 17. suction cup, 2. mounting plate frame, 21. electric push rod, 22. pressure frame, 23. turntable, 24. winding rod, 25. magnetic block, 26. fixing rod, 27. series rope, 3. roller, 31. guide frame, 32. first elastic component, 33. moving frame, 34. screw, 35. connecting frame, 4. supporting frame, 41. brush, 42. second elastic component, 5. protective shell, 51. connecting rod, 52. indicator block. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0035] Example 1

[0036] A groove cutting and welding device for stainless steel elbow connection, such as Figure 1-Figure 4 As shown, it includes a guide belt 101, a cutting and welding machine 11, a nozzle 12, a mounting frame 13, an electromagnet 14, a pulley assembly 15, a motor 16 and a suction cup 17. The front and rear sides of the cutting and welding machine 11 are slidably connected with the guide belt 101. The guide belt 101 is used to install the cutting and welding machine 11 on the surface of the stainless steel pipe 1. The front side of the cutting and welding machine 11 is rotatably connected with the nozzle 12. The front side of the cutting and welding machine 11 is clamped with the mounting frame 13. The front and rear parts of the mounting frame 13 are fixedly connected with three axially distributed electromagnets 1 4. The electromagnet 14 is magnetically matched with the stainless steel pipe 1. A pulley assembly 15 is installed at the front of the mounting frame 13, wherein the pulley assembly 15 includes two pulleys and a belt, and a belt is wound between the two pulleys. A motor 16 is fixedly connected to the right part of the mounting frame 13. The output end of the motor 16 is fixedly connected to the pulley on the right side of the pulley assembly 15 through a coupling. The upper and lower sides of the belt in the pulley assembly 15 are fixedly connected with axially distributed suction cups 17, and the suction cups 17 are in contact with the stainless steel pipe 1.

[0037] like Figure 1 and Figure 2 As shown, a bolt is threadedly connected to the left front side of the cutting and welding machine 11, and the bolt is squeezed and matched with the nozzle 12.

[0038] like Figure 1 and Figure 2 As shown, the guide belt 101 has the function of adjusting its own length.

[0039] When the worker needs to cut the stainless steel pipe 1, he can first put the two guide belts 101 on the appropriate position of the stainless steel pipe 1, and then adjust the length of the guide belt 101 according to the diameter of the stainless steel pipe 1, so as to ensure that the cutting and welding machine 11 can be close to the outer surface of the stainless steel pipe 1. After that, the worker can first loosen the bolts on the front side of the cutting and welding machine 11, and rotate the nozzle 12 to a corresponding angle according to the required groove angle. After the adjustment is completed, the bolts are tightened again, and then the cutting and welding machine 11 and the nozzle 12 are started. The cutting and welding machine 11 will bring the nozzle 12 and other components along the guide belt 101 clockwise around the outside of the stainless steel pipe 1, and the nozzle 12 can flame cut the stainless steel pipe 1 and cut off the excess part of the stainless steel pipe 1. When necessary, the mounting frame 13 and other components can be clamped and installed on the cutting and welding machine 11 in advance, and the electromagnet 14 can be started during cutting, so that the suction cup 17 and the electromagnet 14 will not The stainless steel pipe 1 is adsorbed and fixed. Since the cutting and welding machine 11 will rotate around the outside of the stainless steel pipe 1 with the suction cup 17 and the electromagnet 14, it is also necessary to start the motor 16, and the motor 16 drives the pulley assembly 15 and the suction cup 17 on its surface to rotate clockwise, so that the multiple suction cups 17 on the pulley assembly 15 can take turns to adsorb and fix the part of the stainless steel pipe 1 to be cut off, so that the part of the stainless steel pipe 1 to be cut off can be adsorbed and fixed during cutting to prevent it from deflecting and causing the remaining connection area to be bent or even broken, thereby causing an uneven incision and defects such as burrs, thereby improving the cutting quality of this groove cutting and welding device. After the cutting is completed, the electromagnet 14 and the motor 16 are first turned off and the part of the pipe to be cut off is removed, and then the cutting and welding machine 11 and the guide belt 101 and other components are removed from the stainless steel pipe 1, and the mounting frame 13 and other components are removed from the cutting and welding machine 11 when not needed.

[0040] Example 2

[0041] On the basis of Example 1, Figure 5-Figure 8As shown, it also includes a limiting mechanism, which is arranged on the mounting frame 13. The limiting mechanism includes a mounting plate frame 2, an electric push rod 21, a pressure frame 22, a turntable 23, a winding rod 24, a magnetic block 25, a fixing rod 26 and a series rope 27. The mounting plate frame 2 is fixed to the left side of the mounting frame 13, the electric push rod 21 is fixed to the left side of the mounting plate frame 2, the left part of the mounting plate frame 2 is slidably connected to the pressure frame 22, the telescopic end of the electric push rod 21 is fixed to the pressure frame 22, and the mounting plate frame 2 is internally rotatably connected There is a winding rod 24, a turntable 23 is fixedly connected to the front side of the winding rod 24, series ropes 27 are wound around the front and rear sides of the outside of the winding rod 24, the series ropes 27 are slidably connected to the mounting plate frame 2, and equidistantly distributed magnetic blocks 25 are fixedly connected to the middle of the series ropes 27, the magnetic blocks 25 are slidably connected to the mounting plate frame 2, the magnetic blocks 25 are squeezed and matched with the pressing frame 22, the magnetic blocks 25 are magnetically attracted to the stainless steel pipe 1, and a fixing rod 26 is fixedly connected between the front and rear magnetic blocks 25, and the fixing rod 26 is slidably connected to the mounting plate frame 2.

[0042] Before starting the welding and cutting machine 11 and the nozzle 12, the worker can also start the electric push rod 21, and the electric push rod 21 first drives the pressing frame 22 to move downward and squeeze the two adjacent magnetic blocks 25, so that the two magnetic blocks 25 and the corresponding fixing rods 26 move downward and are adsorbed on the stainless steel pipe 1, wherein the rear magnetic block 25 is adsorbed on the main part of the stainless steel pipe 1, and the front magnetic block 25 is adsorbed on the part of the pipe to be cut off, and then the electric push rod 21 will drive the pressing frame 22 to move upward and reset, and when the mounting plate frame 2 and other components rotate around the stainless steel pipe 1 with the welding and cutting machine 11, the two magnetic blocks 25 adsorbed on the stainless steel pipe 1 will gradually pull out the other magnetic blocks 25 and the fixing rod 26 wound on the winding rod 24 along the mounting plate frame 2 through the series rope 27, and the turntable 23 and the winding rod 2 4 then starts to rotate clockwise, and every time the two pairs of magnetic blocks 25 move to the bottom of the pressing frame 22, the electric push rod 21 will drive the pressing frame 22 to move downward and squeeze the magnetic blocks 25, and then drive the pressing frame 22 to move upward and reset, so that the multiple pairs of magnetic blocks 25 on the series rope 27 can be evenly adsorbed on the stainless steel pipe 1, and the relative position between the main pipe and the part of the pipe to be cut off is limited and fixed by the multiple pairs of magnetic blocks 25, so as to prevent the part of the stainless steel pipe 1 to be cut off from rotating under the action of gravity, so that the remaining connection area between the two is bent or even broken, thereby improving the cutting quality of the groove cutting and welding device. After the cutting is completed, the turntable 23 and the winding rod 24 are rotated counterclockwise, and the series rope 27, the magnetic blocks 25 and the fixing rod 26 are rewound to the winding rod 24.

[0043] like Fig. 9 and Fig.10As shown, it also includes a supporting mechanism, which is arranged on the mounting frame 13. The supporting mechanism includes a roller 3, a guide frame 31, a first elastic component 32, a movable frame 33, a screw rod 34 and a connecting frame 35. The guide frame 31 is fixedly connected to the front right part of the mounting frame 13. The movable frame 33 is slidably connected to the front side of the guide frame 31. The middle part of the guide frame 31 is rotatably connected to the screw rod 34. The screw rod 34 is threadedly connected to the movable frame 33. The bottom of the movable frame 33 is slidably connected to the connecting frame 35. Two left and right first elastic components 32 are fixedly connected between the connecting frame 35 and the movable frame 33. The rear side of the connecting frame 35 is rotatably connected to the roller 3, and the roller 3 is in contact with the stainless steel pipe 1.

[0044] like Fig. 9 and Fig.10 As shown, a rubber pad is fixedly connected to the outside of the roller 3.

[0045] After the welding cutter 11 and the mounting frame 13 and other components are installed on the stainless steel pipe 1, the connecting frame 35 and the roller 3 can be moved downward first, and the first elastic component 32 is stretched immediately, and then the screw rod 34 is rotated forward to drive the moving frame 33, the connecting frame 35 and the roller 3 and other components to move backward along the guide frame 31 until the moving frame 33 contacts the stainless steel pipe 1. At this time, the connecting frame 35 and the roller 3 can be loosened, and the roller 3 will move upward under the action of the first elastic component 32 and cling to the inner wall of the stainless steel pipe 1. When the welding cutter 11 drives the mounting frame 13 and other components to rotate around the stainless steel pipe 1, the roller 3 will not only rotate around the inner wall of the stainless steel pipe 1, but also rotate around the inner wall of the stainless steel pipe 1. When the stainless steel pipe 1 is rotated, it will also rotate due to the friction between the stainless steel pipe 1, so that the part of the stainless steel pipe 1 to be cut off can be supported by the roller 3 to avoid bending or even breaking of the connection area, and the movement of the cutting and welding machine 11 can be guided to avoid the deviation of the travel route of the cutting and welding machine 11 when moving, thereby improving the quality and accuracy of the groove cutting and welding device. After the cutting is completed, the lead screw 34 is rotated in the reverse direction to drive the moving frame 33, the connecting frame 35 and the roller 3 to move forward and reset and separate from the stainless steel pipe 1. At this time, the connecting frame 35 and the roller 3 will continue to move upward under the action of the first elastic component 32 until they are reset.

[0046] like Figure 1 and Fig.11 As shown, a cleaning mechanism is also included, which is arranged on the mounting frame 13. The cleaning mechanism includes a support frame 4, a brush 41 and a second elastic component 42. The support frame 4 is fixed to the right part of the mounting frame 13. The left and right sides of the bottom of the support frame 4 are slidably connected with the brush 41. Two front and rear second elastic components 42 are fixed between the brush 41 and the support frame 4. The brush 41 is in contact with the stainless steel pipe 1.

[0047] like Fig.11 As shown, the brush 41 is made of nylon.

[0048] When the cutting and welding machine 11, the mounting frame 13 and other components are installed on the stainless steel pipe 1, the brush 41 will be tightly attached to the outer surface of the stainless steel pipe 1 under the action of the second elastic component 42. When the cutting and welding machine 11 drives the mounting frame 13 and other components to rotate around the stainless steel pipe 1, the brush 41 and the support frame 4 and other components will also move with the mounting frame 13 and brush and clean the surface of the stainless steel pipe 1, so that impurities such as dust, oil and rust on the surface of the stainless steel pipe 1 can be cleaned in advance, avoiding impurities affecting the cutting effect and causing uneven cutting or defects, thereby improving the cutting quality of this groove cutting and welding device.

[0049] like Figure 1 and Fig.12 As shown, a display mechanism is also included, which is arranged on the mounting frame 13. The display mechanism includes a protective shell 5, a connecting rod 51 and an indicator block 52. The protective shell 5 is fixedly connected to the top right side of the mounting frame 13. The left part of the protective shell 5 is rotatably connected to the connecting rod 51. The right end of the connecting rod 51 is fixedly connected to the indicator block 52. The connecting rod 51 is slidably connected to the nozzle 12.

[0050] like Figure 1 and Fig.12 As shown, the protective housing 5 is provided with angle scales which are evenly distributed around the circumference.

[0051] When the mounting bracket 13 is snap-fitted and installed on the cutting and welding machine 11, the left end of the connecting rod 51 will also dock with the right side of the nozzle 12. At this time, the indicator block 52 will be parallel to the nozzle 12. When the worker rotates the nozzle 12, the connecting rod 51 and the indicator block 52 will also rotate accordingly. Since the protective shell 5 is engraved with angle scales evenly distributed on the circumference, the worker can clearly know the inclination angle of the nozzle 12 according to the angle scales on the indicator block 52 and the protective shell 5, so that the worker can accurately adjust the rotation and inclination angle of the nozzle 12 according to the needs, thereby accurately controlling the groove angle at the incision of the stainless steel pipe 1, thereby improving the cutting accuracy of this groove cutting and welding device.

[0052] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A groove cutting and welding device for stainless steel elbow connection, comprising a guide belt (101), a cutting and welding machine (11) and a nozzle (12), wherein the cutting and welding machine (11) is slidably connected to a pair of guide belts (101), the guide belts (101) are used to install the cutting and welding machine (11) on the surface of a stainless steel pipe (1), and the cutting and welding machine (11) is rotatably connected to the nozzle (12), wherein the characteristics are: The invention also comprises a mounting frame (13), an electromagnet (14), a pulley assembly (15), a motor (16) and a suction cup (17). The cutting and welding machine (11) is clamped with the mounting frame (13). The mounting frame (13) is fixedly connected with electromagnets (14) distributed in pairs in an axial direction. The electromagnets (14) are magnetically matched with the stainless steel pipe (1). The mounting frame (13) is installed with a pulley assembly (15), wherein the pulley assembly (15) comprises two pulleys and a belt, and a belt is wound between the two pulleys. The mounting frame (13) is fixedly connected with the motor (16). The output end of the motor (16) is fixedly connected to the pulley on one side of the pulley assembly (15) through a coupling. The belt in the pulley assembly (15) is fixedly connected with suction cups (17) distributed in pairs in an axial direction. The suction cups (17) are in contact with the stainless steel pipe (1).

2. A groove cutting and welding device for stainless steel elbow connection according to claim 1, characterized in that: Among them The welding machine (11) is threadedly connected with a bolt, and the bolt is extruded and fitted with the nozzle (12).

3. A groove cutting and welding device for stainless steel elbow connection according to claim 2, characterized in that: The guide belt (101) It has the function of adjusting its own length.

4. A groove cutting and welding device for stainless steel elbow connection according to claim 3, characterized in that: The invention also includes a limiting mechanism, which is arranged on the mounting frame (13). The limiting mechanism includes a mounting plate frame (2), an electric push rod (21), a pressure frame (22), a turntable (23), a winding rod (24), a magnetic block (25), a fixing rod (26) and a series rope (27). The mounting plate frame (2) is fixedly connected to the mounting frame (13). The mounting plate frame (2) is fixedly connected to the electric push rod (21). The mounting plate frame (2) is slidably connected to the pressure frame (22). The telescopic end of the electric push rod (21) is fixedly connected to the pressure frame (22). The mounting plate frame (2) is rotatably connected to the winding rod. A winding rod (24) is fixedly connected to the winding rod (24) with a turntable (23), a pair of serial ropes (27) are wound around the winding rod (24), the serial ropes (27) are slidably connected to the mounting plate frame (2), the serial ropes (27) are fixedly connected to equally spaced magnetic blocks (25), the magnetic blocks (25) are slidably connected to the mounting plate frame (2), the magnetic blocks (25) are pressed and matched with the pressing frame (22), the magnetic blocks (25) are magnetically matched with the stainless steel pipe (1), a fixing rod (26) is fixedly connected between the pair of magnetic blocks (25), and the fixing rod (26) is slidably connected to the mounting plate frame (2).

5. A groove cutting and welding device for stainless steel elbow connection according to claim 4, characterized in that: The invention also comprises a supporting mechanism, which is arranged on the mounting frame (13), and comprises a roller (3), a guide frame (31), a first elastic component (32), a movable frame (33), a screw rod (34) and a connecting frame (35). The guide frame (31) is fixedly connected to the mounting frame (13), the guide frame (31) is slidably connected to the movable frame (33), the guide frame (31) is rotatably connected to the screw rod (34), the screw rod (34) is threadedly connected to the movable frame (33), the movable frame (33) is slidably connected to the connecting frame (35), a pair of first elastic components (32) are fixedly connected between the connecting frame (35) and the movable frame (33), the connecting frame (35) is rotatably connected to the roller (3), and the roller (3) is in contact with and cooperates with the stainless steel pipe (1).

6. A groove cutting and welding device for stainless steel elbow connection according to claim 5, characterized in that: The roller (3) Fixed with rubber pad.

7. A groove cutting and welding device for connecting stainless steel elbows according to claim 6, characterized in that: The cleaning mechanism is also included. The cleaning mechanism is arranged on the mounting frame (13). The cleaning mechanism includes a support frame (4), a brush (41) and a second elastic component (42). The support frame (4) is fixedly connected to the mounting frame (13). The support frame (4) is slidably connected to a pair of brushes (41). A pair of second elastic components (42) are fixedly connected between the brushes (41) and the support frame (4). The brushes (41) are in contact with the stainless steel pipe (1).

8. A groove cutting and welding device for stainless steel elbow connection according to claim 7, characterized in that: The brush (41) is made of nylon.

9. A groove cutting and welding device for stainless steel elbow connection according to claim 8, characterized in that: The device also includes a display mechanism, which is arranged on a mounting frame (13). The display mechanism includes a protective shell (5), a connecting rod (51) and an indicator block (52). The protective shell (5) is fixedly connected to the mounting frame (13). The protective shell (5) is rotatably connected to the connecting rod (51). The connecting rod (51) is fixedly connected to the indicator block (52). The connecting rod (51) is slidably connected to the nozzle (12).

10. A groove cutting and welding device for stainless steel elbow connection according to claim 9, characterized in that: The protective housing (5) is provided with angle scales which are evenly spaced around the circumference.

Images