Adjustable flange induction heating device

Abstract

The application discloses a kind of adjustable flange plate induction heating device, including base, the hydraulic cylinder is installed in the bottom of base, the base is heat preservation material, and the piston is provided above the hydraulic cylinder, the inside of base is connected with inner support column, the connecting column is installed in the upper end of piston, the outer circle of placing plate array distribution has horizontal oil cylinder one, the extrusion mechanism is provided below vertical oil cylinder one, the upper end of movable rod is connected with horizontal oil cylinder two, and vertical oil cylinder two is provided above the horizontal oil cylinder two, the lifting rod is installed in the inside of vertical oil cylinder two, and the upper end of lifting rod is communicated with horizontal oil cylinder three.The application can be self-adaptive to adjust the flat type and step type flange plate of different diameter and different height by extrusion mechanism and heating mechanism, and the heating mechanism is located in the outer circle of its column body, so that the flange is uniformly heated.

Description

Technical Field

[0001] This invention relates to the field of flange processing technology, specifically to an adjustable flange induction heating device. Background Technology

[0002] Flanges are divided into two types: stepped and flat. In order to improve the wear resistance and corrosion resistance of the flange and extend its service life, welding is usually performed on the flange ring connection surface. That is, a hard metal surface layer is prepared on a base material with good plasticity and toughness, so as to obtain a better combination of performance. According to the authorized announcement number CN111304417B, an inductor for simultaneous induction heating and quenching of double-step flanges is disclosed. Along the circumference of the induction coil, the inductor divides the entire induction coil into five parts, and the adjacent parts are connected by steps, so that the entire coil is composed of five parts with different heights. Each part is provided with several magnetic conductors, so that for double-step flanges, the inductor can simultaneously heat the cylindrical surfaces of two flanges with different heights and diameters. The whole part can be induction heated and quenched in one step, which can reduce one secondary induction heating and quenching process, double the production efficiency, and reduce the labor intensity of the producers by 50%. The aforementioned comparative patent still requires manual measurement of the flange dimensions and adjustment of the heating inductor during the heating process. The adjusted heating inductor is then fitted onto the outer side of the upper and lower columns of the flange. While this method can heat flanges of different sizes, it cannot adaptively adjust to different types and sizes of flanges. Therefore, it is necessary to provide an adjustable flange induction heating device to solve the above-mentioned technical problems. Summary of the Invention

[0003] The purpose of this invention is to provide an adjustable flange induction heating device to solve the problem mentioned in the background art that existing flange heaters cannot adaptively adjust to different types and sizes of flanges. The technical solution of this invention addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an adjustable flange induction heating device, comprising a base, a hydraulic cylinder installed at the bottom of the base, a piston arranged above the hydraulic cylinder, an inner support column connected to the inner side of the base, a connecting column installed at the upper end of the piston, a placement plate arranged at the upper end of the connecting column, horizontal oil cylinders arranged in an array around the outer ring of the placement plate, a vertical oil cylinder installed below the horizontal oil cylinder, a pressing mechanism arranged below the vertical oil cylinder, a movable rod installed on one side of the vertical oil cylinder, a horizontal oil cylinder connected to the upper end of the movable rod, a vertical oil cylinder arranged above the horizontal oil cylinder, a lifting rod installed inside the vertical oil cylinder, and a horizontal oil cylinder connected to the upper end of the lifting rod.

[0005] In a further embodiment, the base is made of thermal insulation material.

[0006] In a further embodiment, the extrusion mechanism includes an upper magnetic plate installed inside the vertical oil cylinder, and a vertical spring is connected to the bottom of the upper magnetic plate. A lower magnetic plate is provided below the vertical spring, and an extrusion rod is connected to the bottom of the lower magnetic plate. A ball bearing is rolled at the bottom of the extrusion rod, and an oil pipe is connected to the right side of the vertical oil cylinder.

[0007] In a further embodiment, the opposite sides of the upper and lower magnetic plates are arranged with magnetic poles repelling each other, and the lower magnetic plate and the extrusion rod together with the vertical oil cylinder form an upper and lower sealed sliding structure.

[0008] In a further embodiment, the end of the oil pipe is connected to the lower part of the horizontal oil cylinder, and the number of oil pipes corresponds one-to-one with the number of vertical oil cylinders.

[0009] In a further embodiment, the compression rod, together with the ball bearing, forms a sliding connection with the upper end face of the inner support column.

[0010] In a further embodiment, the movable rod is L-shaped, and the movable rod and the horizontal oil cylinder form a left-right sealed sliding structure.

[0011] In a further embodiment, a transverse spring is provided on the inner side of the second horizontal oil cylinder, and one end of the transverse spring is connected to a lower clamping rod. A lower connecting block is installed on one end of the lower clamping rod, and a lower connecting rod in the shape of a cylinder is movably connected to the inner side of the lower connecting block. The number of lower connecting rods corresponds one-to-one with the number of lower connecting blocks and is distributed in a ring array. A lower heating wire is connected to the outer side of the ring array of lower connecting rods. The lower clamping rod and the second horizontal oil cylinder form a sealed sliding structure. The lower connecting rod is made of high-temperature resistant insulating material.

[0012] In a further embodiment, the second vertical oil cylinder and the lifting rod form an upper and lower sealed sliding structure, and both the second vertical oil cylinder and the lifting rod have corresponding through holes on their inner sides.

[0013] In a further embodiment, an upper clamping rod is connected to the inner side of the horizontal oil cylinder three, and an upper connecting block is installed at one end of the upper clamping rod. An upper connecting rod in the shape of a column is movably connected to the inner side of the upper connecting block. The number of upper connecting rods corresponds one-to-one with the number of upper connecting blocks and is distributed in a ring array. An upper heating wire is connected to the outer side of the ring array of upper connecting rods. The upper clamping rod and the horizontal oil cylinder three form a left-right sealed sliding connection. The upper connecting rod is made of high-temperature resistant insulating material.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention is equipped with a pressing mechanism. A piston driven by a hydraulic cylinder moves downward, which can effectively drive the connecting column, the placement plate and the flange to move downward simultaneously. As the pressing rod moves downward with the ball bearings, it works in conjunction with the pressing of the support column to effectively drive the lower magnetic plate to press upward with the vertical spring above. This causes the movable rod and the heating mechanism to move in conjunction with the horizontal oil cylinder to move closer to the outer ring of the placement plate. Compared with the existing technology, this invention can effectively move the lower clamping rod, the lower connecting block, the lower connecting rod and the lower heating wire in the same direction until the lower connecting rod touches the outside of the lower flange column. Then, the current of the lower heating wire is connected, and an eddy current is formed, thereby realizing uniform heating treatment of the outside of the flat flange column with different diameters. 2. This invention comprises a second vertical oil cylinder, a lifting rod, an upper clamping rod, an upper connecting block, an upper connecting rod, and an upper heating wire. Utilizing the continuous downward movement of the piston, the lower connecting rod and lower heating wire are continuously squeezed outwards from the flange column. This forces the oil in the second horizontal oil cylinder to be squeezed into the inner sides of the second vertical oil cylinder and the lifting rod, and through a through-hole on the inner side of the lifting rod, to be squeezed into the inner side of the third horizontal oil cylinder. This effectively squeezes the upper clamping rod, upper connecting block, upper connecting rod, and upper heating wire outwards from the flange. Because the second vertical oil cylinder and the lifting rod are lifting structures, when the upper connecting rod abuts against the outer ring of the lower flange column, the oil... The continuous inflow of liquid into the inner side of the horizontal oil cylinder three effectively drives the horizontal oil cylinder three to move upward in coordination with the vertical oil cylinder two. When the upper connecting rod and the upper heating wire leave the flange step, they will move laterally. When they come into contact laterally, they will move upward again until the upper connecting rod and the upper heating wire are adjusted to the optimal position on the outer ring of the main body of the stepped flange. Compared with the existing technology, it can adaptively adjust the heating position of the upper heating wire for stepped flanges of different heights and diameters, thereby enabling the device to perform adaptive heating treatment for stepped flanges of different heights and diameters. 3. In summary, this device can adaptively adjust the heating mechanism located on the outer ring of flat flanges of different diameters and heights, and also adaptively adjust the heating mechanism located on the outer ring of stepped flanges of different diameters and heights. This achieves uniform heating of the flanges. After heating flanges of various specifications, the piston can be driven upward by the hydraulic cylinder to push the flange upward, facilitating the welding machine to perform surfacing welding on the flange circumferential surface. This eliminates the need for manual removal of the flange from the heating platform to the welding platform, thereby reducing manual labor and increasing the practicality and convenience of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a preferred embodiment of the adjustable flange induction heating device provided by the present invention. Figure 2 for Figure 1 The enlarged structural diagram at point A is shown below; Figure 3 for Figure 1 The diagram shows a top view of the structure. Figure 4 for Figure 1 The enlarged structural diagram at point B is shown.

[0016] In the diagram: 1. Base; 2. Hydraulic cylinder; 3. Piston; 4. Inner support column; 5. Connecting column; 6. Placement plate; 7. Horizontal oil cylinder one; 8. Vertical oil cylinder one; 9. Extrusion mechanism; 901. Upper magnetic plate; 902. Vertical spring; 903. Lower magnetic plate; 904. Extrusion rod; 904a. Ball bearing; 905. Oil pipe; 10. Movable rod; 11. Horizontal oil cylinder two; 1101. Horizontal spring; 1102. Lower clamping rod; 1103. Lower connecting block; 1104. Lower connecting rod; 1105. Lower heating wire; 12. Vertical oil cylinder two; 13. Lifting rod; 14. Horizontal oil cylinder three; 1401. Upper clamping rod; 1402. Upper connecting block; 1403. Upper connecting rod; 1404. Upper heating wire. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-4An embodiment of the present invention provides an adjustable flange induction heating device, comprising a base 1, a hydraulic cylinder 2, a piston 3, an inner support column 4, a connecting column 5, a placement plate 6, a horizontal oil cylinder 1 7, a vertical oil cylinder 1 8, a pressing mechanism 9, an upper magnetic plate 901, a vertical spring 902, a lower magnetic plate 903, a pressing rod 904, a ball bearing 904a, an oil pipe 905, a movable rod 10, a horizontal oil cylinder 2 11, a horizontal spring 1101, a lower clamping rod 1102, a lower connecting block 1103, a lower connecting rod 1104, a lower heating wire 1105, a vertical oil cylinder 2 12, a lifting rod 13, a horizontal oil cylinder 3 14, an upper clamping rod 1401, an upper connecting block 1402, an upper connecting rod 1403, and... The heating wire is 1404. A hydraulic cylinder 2 is installed at the bottom of the base 1. The base 1 is made of heat-insulating material. A piston 3 is set above the hydraulic cylinder 2. An inner support column 4 is connected to the inner side of the base 1. A connecting column 5 is installed at the upper end of the piston 3. A placement plate 6 is set at the upper end of the connecting column 5. A horizontal oil cylinder 7 is arranged in an array around the outer ring of the placement plate 6. A vertical oil cylinder 8 is installed below the horizontal oil cylinder 7. A pressing mechanism 9 is set below the vertical oil cylinder 8. A movable rod 10 is installed on one side of the vertical oil cylinder 8. A horizontal oil cylinder 11 is connected to the upper end of the movable rod 10. A vertical oil cylinder 12 is set above the horizontal oil cylinder 11. A lifting rod 13 is installed inside the vertical oil cylinder 12. A horizontal oil cylinder 14 is connected to the upper end of the lifting rod 13. Example

[0019] Please see Figure 1-4As shown, the extrusion mechanism 9 includes an upper magnetic plate 901 installed inside the vertical oil cylinder 8, with a vertical spring 902 connected to the bottom of the upper magnetic plate 901. A lower magnetic plate 903 is located below the vertical spring 902, and an extrusion rod 904 is connected to the bottom of the lower magnetic plate 903. A ball bearing 904a is rolled at the bottom of the extrusion rod 904. An oil pipe 905 is connected to the right side of the vertical oil cylinder 8. The opposite sides of the upper magnetic plate 901 and the lower magnetic plate 903 are arranged with magnetic poles repelling each other. The lower magnetic plate 903 and the extrusion rod 904 form an upper and lower sealed sliding structure with the vertical oil cylinder 8. The end of the oil pipe 905 is connected to the bottom of the horizontal oil cylinder 7, and the number of oil pipes 905 corresponds one-to-one with the number of vertical oil cylinders 8. The extrusion rod 904, in conjunction with the ball bearing 904a, forms a sliding connection with the upper end face of the inner support column 4. The movable rod 10 is L-shaped, and the movable rod 10 and the horizontal oil cylinder 7 form a left and right sealed sliding structure. A horizontal spring 1101 is provided on the inner side of the horizontal oil cylinder 11, and one end of the horizontal spring 1101 is connected to a lower clamping rod 1102. A lower connecting block 1103 is installed on one end of the lower clamping rod 1102, and a columnar lower connecting rod 1104 is movably connected to the inner side of the lower connecting block 1103. The number of lower connecting rods 1104 corresponds one-to-one with the number of lower connecting blocks 1103, and they are distributed in a ring array. The lower heating wire 1105 is connected to the outer side of the ring array of lower connecting rods 1104. The lower clamping rod 1102 and the horizontal oil cylinder 11 form a sealed sliding structure. Both the lower connecting rod 1104 and the lower connecting rod 1104 are made of high temperature resistant insulating material. First, place the flange at the center of the placement plate 6. Then, start the bottom hydraulic cylinder 2 to drive the piston 3 to move downward, and drive the connecting column 5, the placement plate 6 and the flange to move downward at the same time. At this time, the horizontal oil cylinders 7 and all the components connected to them, which are equidistantly distributed on the outside of the placement plate 6, will also move downward at the same time. When the vertical oil cylinder 8 moves downward, the extrusion rod 904 below it, together with the ball 904a, is squeezed by the inner support column 4, which drives the lower magnetic plate 903 to squeeze upward with the upper vertical spring 902, thereby drawing the oil inside the horizontal oil cylinder 7 into the inner side of the vertical oil cylinder 8 through the oil pipe 905. As the oil inside the horizontal oil cylinder 7 gradually decreases, the movable rod 10 moves closer to the outer ring of the placement plate 6 along with the horizontal oil cylinder 7, thereby moving the two flange heating mechanisms inward at the same time. When the horizontal oil cylinder 11, the horizontal spring 1101, the lower clamping rod 1102, the lower connecting block 1103, the lower connecting rod 1104, and the lower heating wire 1105 move inward simultaneously, the lower connecting rod 1104 will preferentially abut against the outer wall of the column below the flange. This allows for effective adjustment of the heating mechanism according to flat flanges of different diameters, thus facilitating the heating treatment of flat flanges of different diameters by the lower heating wire 1105. Example

[0020] Please see Figure 1-3Unlike Embodiment 1, the movable rod 10 is L-shaped, and the movable rod 10 and the horizontal oil cylinder 7 form a left-right sealed sliding structure. A transverse spring 1101 is provided inside the horizontal oil cylinder 11, and one end of the transverse spring 1101 is connected to a lower clamping rod 1102. A lower connecting block 1103 is installed at one end of the lower clamping rod 1102. An upper connecting rod 1403 in the shape of a cylinder is movably connected to the inner side of the upper connecting block 1402. The number of upper connecting rods 1403 corresponds one-to-one with the number of upper connecting blocks 1402, and they are arranged in a ring array. Furthermore, the outer side of the ring array of upper connecting rods 1403 is connected to... The upper heating wire 1404, the upper clamping rod 1401 and the horizontal oil cylinder 14 form a left-right sealed sliding connection. The vertical oil cylinder 12 and the lifting rod 13 form an upper-lower sealed sliding structure. The vertical oil cylinder 12 and the lifting rod 13 are provided with corresponding through holes on their inner sides. The upper clamping rod 1401 is connected to the inner side of the horizontal oil cylinder 14. An upper connecting block 1402 is installed at one end of the upper clamping rod 1401. An upper connecting rod 1403 in the shape of a column is movably connected to the inner side of the upper connecting block 1402. The upper heating wire 1404 is wound around the outer side of the upper connecting rod 1403. The upper clamping rod 1401 and the horizontal oil cylinder 14 form a left-right sealed sliding connection. As piston 3 continues to descend, the lower connecting rod 1104, lower heating wire 1105, lower connecting block 1103, and lower clamping rod 1102, together with the transverse spring 1101, squeeze the oil in the horizontal oil cylinder 11 towards the inside of the vertical oil cylinder 12. The squeezed oil will be squeezed into the inside of the horizontal oil cylinder 14 through the through hole on the inside of the lifting rod 13. As the oil inside the horizontal oil cylinder 14 gradually increases, the upper clamping rod 1401 moves closer to the outer wall of the flange along with the horizontal oil cylinder 14. At the same time, the upper connecting block 1402, upper connecting rod 1403, and upper heating wire 1404 move in the same direction, so that the upper connecting rod 1403 abuts against the outer wall of the lower column of the flange. Because the flange at this location is a stepped flange, and there are stepped flanges of different heights and diameters, in order for the upper connecting rod 1403 to abut against the outer side of the upper column of the stepped flange, when the upper connecting rod 1403 is pressed against the flange step, the piston 3 continues to move downward, causing the lower connecting rod 1104 to continue to be compressed. This is achieved through the continuous compression of the oil against the inner side of the horizontal oil cylinder 14, as well as the action of the upper clamping rod 1401, upper connecting block 1402, upper connecting rod 1403, and upper heating wire 1404 against the flange. At the same time, the vertical oil cylinder 12 and the lifting rod 1... 3 serves as a lifting and sliding connection, which can push the horizontal oil cylinder 14, upper clamping rod 1401, upper connecting block 1402, upper connecting rod 1403 and upper heating wire 1404 upward. At this time, as long as the upper connecting rod 1403 and upper heating wire 1404 leave the flange step, under the action of continuous oil injection, the upper clamping rod 1401, upper connecting block 1402, upper connecting rod 1403 and upper heating wire 1404 will move towards the outer wall of the flange upper column. And through the continuous entry of oil, the upper connecting rod 1403 can be adjusted to the optimal position against the outer side of the flange upper column through the above principle. After adjusting the two heating mechanisms to the outer sides of the upper and lower columns of the flange, the lower heating wire 1105 and the upper heating wire 1404 can be connected to current to form an eddy current, thereby efficiently and uniformly heating the outer sides of the upper and lower columns of the stepped flange.

[0021] Working principle: such as Figure 1-4 As shown, the flange is first placed in the center of the placement plate 6. Then, the bottom hydraulic cylinder 2 is activated to drive the piston 3 to move downward, and the connecting column 5, the placement plate 6 and the flange move downward at the same time. At this time, the horizontal oil cylinders 7 and all the components connected to them, which are equidistantly distributed on the outer side of the placement plate 6, also move downward at the same time. When the vertical oil cylinder 8 moves downward, the extrusion rod 904 below it, together with the ball 904a, is squeezed by the inner support column 4, which drives the lower magnetic plate 903 to squeeze upward with the upper vertical spring 902, thereby drawing the oil inside the horizontal oil cylinder 7 into the inner side of the vertical oil cylinder 8 through the oil pipe 905. As the oil inside the horizontal oil cylinder 7 gradually decreases, the movable rod 10 moves closer to the outer ring of the placement plate 6 along with the horizontal oil cylinder 7, thereby moving the two flange heating mechanisms inward at the same time. When the horizontal oil cylinder 11, horizontal spring 1101, lower clamping rod 1102, lower connecting block 1103, lower connecting rod 1104, and lower heating wire 1105 move inward simultaneously, the lower connecting rod 1104 will preferentially abut against the outer wall of the lower column of the flange. This allows for effective adjustment of the heating mechanism according to different diameter flat flanges, facilitating the heating of flat flanges of different diameters by the lower heating wire 1105. At this time, the piston 3 continues to descend, causing the lower connecting rod 1104, lower heating wire 1105, and lower connecting block 1105 to move inward simultaneously. 3. The lower clamping rod 1102, in conjunction with the transverse spring 1101, squeezes the oil in the horizontal oil cylinder 11 toward the inner side of the vertical oil cylinder 12. The squeezed oil will be squeezed through the through hole on the inner side of the lifting rod 13 to the inner side of the horizontal oil cylinder 14. As the oil inside the horizontal oil cylinder 14 gradually increases, the upper clamping rod 1401 moves closer to the outer wall of the flange in conjunction with the horizontal oil cylinder 14. At the same time, the upper connecting block 1402, the upper connecting rod 1403 and the upper heating wire 1404 move in the same direction, so that the upper connecting rod 1403 abuts against the outer wall of the lower column of the flange. Because the flange at this location is a stepped flange, and there are stepped flanges of different heights and diameters, in order to adjust the lower heating wire 1105 to the outside of the upper column of the stepped flange, when the upper connecting rod 1403 presses against the flange step, the piston 3 continues to move downward, so that the lower connecting rod 1104 and the lower heating wire 1105 continue to be compressed. Through the continuous compression of the oil to the inside of the horizontal oil cylinder 14, and the action of the upper clamping rod 1401, the upper connecting block 1402, and the upper connecting rod 1403 being resisted by the flange, and also through the action of the vertical oil cylinder 12 and the lifting rod 1 3 serves as a lifting and sliding connection, which can push the horizontal oil cylinder 14, upper clamping rod 1401, upper connecting block 1402, upper connecting rod 1403 and upper heating wire 1404 upward. At this time, as long as the upper connecting rod 1403 and upper heating wire 1404 leave the flange step, under the action of continuous oil squeezing, the upper clamping rod 1401, upper connecting block 1402, upper connecting rod 1403 and upper heating wire 1404 will move towards the outer wall of the flange upper column. And through the continuous entry of oil, the upper connecting rod 1403 can be adjusted to abut against the middle position of the outer side of the flange upper column through the above principle. After adjusting the two heating mechanisms to the outside of the upper and lower columns of the flange, the lower heating wire 1105 and the upper heating wire 1404 can be connected to current to form an eddy current, thereby efficiently and uniformly heating the outside of the upper and lower columns of the stepped flange. The device can also heat flanges without steps evenly. When heating flanges without steps, the heating mechanism below only needs to touch the outer wall of the flange column, thus increasing the practicality of the device. After the stepped flange is heated, the hydraulic cylinder 2 is activated to drive the piston 3 to move upward, so that the pressing rod 904 is reset under the elastic thrust of the vertical spring 902 and the magnetic repulsion between the lower magnetic plate 903 and the upper magnetic plate 901. This causes the two heating mechanisms to move away from the stepped flange. Finally, the flange is welded on top by a welding machine, thus completing a series of operations.

[0022] Contents not described in detail in this specification are prior art known to those skilled in the art. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate orientations or positional relationships based on the accompanying drawings, and are used only for ease of description and simplification, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable flange induction heating device, comprising a base (1), characterized in that: A hydraulic cylinder (2) is installed at the bottom of the base (1), and a piston (3) is provided above the hydraulic cylinder (2). An inner support column (4) is connected to the inner side of the base (1). A connecting column (5) is installed at the upper end of the piston (3), and a placement plate (6) is provided at the upper end of the connecting column (5). A horizontal oil cylinder (7) is distributed in an array around the outer ring of the placement plate (6). A vertical oil cylinder (8) is installed below the horizontal oil cylinder (7). A pressing mechanism (9) is provided below the vertical oil cylinder (8). A movable rod (10) is installed on one side of the horizontal oil cylinder (7). A horizontal oil cylinder (11) is connected to the upper end of the movable rod (10). A vertical oil cylinder (12) is provided above the horizontal oil cylinder (11). A lifting rod (13) is installed inside the vertical oil cylinder (12), and a horizontal oil cylinder (14) is connected to the upper end of the lifting rod (13). The right side of the vertical oil cylinder (8) is connected to an oil pipe (905), the end of which is connected to the bottom of the horizontal oil cylinder (7). A horizontal spring (1101) is provided inside the horizontal oil cylinder (11), and one end of the horizontal spring (1101) is connected to a lower clamping rod (1102). A lower connecting block (1103) is installed at one end of the lower clamping rod (1102), and a columnar lower connecting rod (1104) is movably connected inside the lower connecting block (1103). The number of lower connecting rods (1104) is the same as the number of lower connecting blocks (1103). The quantities are in a one-to-one correspondence and are distributed in a ring array. The lower connecting rod (1104) of the ring array is connected to the lower heating wire (1105) on the outside. The lower clamping rod (1102) and the horizontal oil cylinder (11) form a sealed sliding structure. The lower connecting rod (1104) is made of high temperature resistant insulating material. The vertical oil cylinder (12) and the lifting rod (13) form an upper and lower sealed sliding structure. The vertical oil cylinder (12) and the lifting rod (13) are both provided with corresponding through holes on the inner side. The upper clamping rod (1401) is connected to the inner side of the horizontal oil cylinder (14).

2. The adjustable flange induction heating device according to claim 1, characterized in that: The base (1) is made of thermal insulation material.

3. The adjustable flange induction heating device according to claim 1, characterized in that: The extrusion mechanism (9) includes an upper magnetic plate (901) installed inside the vertical oil cylinder (8), and a vertical spring (902) is connected to the bottom of the upper magnetic plate (901). A lower magnetic plate (903) is provided below the vertical spring (902), and an extrusion rod (904) is connected to the bottom of the lower magnetic plate (903). A ball bearing (904a) is rolled at the bottom of the extrusion rod (904).

4. The adjustable flange induction heating device according to claim 3, characterized in that: The upper magnetic plate (901) and the lower magnetic plate (903) are arranged with magnetic poles repulsing each other on opposite sides, and the lower magnetic plate (903) and the extrusion rod (904) together with the vertical oil cylinder (8) form an upper and lower sealed sliding structure.

5. The adjustable flange induction heating device according to claim 3, characterized in that: The number of oil pipes (905) corresponds one-to-one with the number of vertical oil cylinders (8).

6. The adjustable flange induction heating device according to claim 3, characterized in that: The extrusion rod (904) and the ball bearing (904a) form a sliding connection with the upper end face of the inner support column (4).

7. The adjustable flange induction heating device according to claim 1, characterized in that: The movable rod (10) is L-shaped, and the movable rod (10) and the horizontal oil cylinder (7) form a left and right sealed sliding structure.

8. The adjustable flange induction heating device according to claim 1, characterized in that: An upper connecting block (1402) is installed at one end of the upper clamping rod (1401). An upper connecting rod (1403) in the shape of a column is movably connected to the inner side of the upper connecting block (1402). The number of upper connecting rods (1403) corresponds one-to-one with the number of upper connecting blocks (1402) and is distributed in a ring array. An upper heating wire (1404) is connected to the outer side of the ring array of upper connecting rods (1403). The upper clamping rod (1401) and the horizontal oil cylinder (14) form a left-right sealed sliding connection. The upper connecting rod (1403) is made of high temperature resistant insulating material.

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