High-frequency induction welding device for steel pipe machining
By designing a high-frequency induction welding device including support components, clamping components and pressurization mechanism, the problem of difficulty in welding non-standard steel pipes in existing equipment is solved, and an efficient and safe welding effect is achieved.
Patent Information
- Application Number
- CN202421485301.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-27
AI Technical Summary
Existing high-frequency induction welding equipment is difficult to effectively weld steel pipes with slightly different lengths and diameters, resulting in low production efficiency and unsafety.
A high-frequency induction welding device for steel pipe processing is designed, including a base plate, a high-frequency induction welding main machine, a support component, a clamping component and a pressurization mechanism. The support component supports the steel pipe horizontally, clamps the steel pipe, and the pressurization mechanism applies axial pressure to realize high-frequency induction welding.
This device can safely and efficiently weld steel pipes of non-standard lengths, improve welding efficiency, avoid the danger of open flames and arcs, and is suitable for processing of steel pipes of different specifications.
Smart Images
Figure CN222790868U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel pipe welding, in particular to a high-frequency induction welding device for steel pipe processing. Background Art
[0002] Working principle of high-frequency induction welding equipment in steel pipe processing: High-frequency induction welding machine converts low-voltage current into high-frequency current through power supply, usually in the range of 10kHz to 100kHz. This high-frequency current is the key to realizing the welding process. It can effectively reduce the size of wires and conductors and improve the efficiency and quality of welding. The high-frequency current passes through the induction coil connected to the workpiece to generate a constantly changing magnetic field. When the induction coil is close to the steel pipe or other conductor, eddy currents will be generated inside the steel pipe. Under the action of high frequency, these eddy currents will generate intense heat, causing the welding area to heat up rapidly. The heat absorbed by the steel pipe will heat up the welding area to the melting temperature. At this temperature, the metal in the welding area will form a molten pool. Then, by applying appropriate pressure to make the two welded parts contact, the metal in the molten pool will automatically flow to form a weld.
[0003] Existing high-frequency induction welding equipment is often used in the joint welding of straight seam steel pipes, that is, it is suitable for processing straight welds. However, in the actual production of steel pipe fittings, some customers need non-standard length steel pipes or butt steel pipes with slightly different diameters, which are used in the field of supporting pipe fittings such as lamp poles. At present, such non-standard pipe fittings are still clamped by splicing tooling, which can be rotated, manually welded or robot welded, and open flame welding, which is not safe and has low production efficiency.
[0004] Therefore, it is necessary to develop a high-frequency induction welding device for steel pipe processing in view of the above defects. Utility Model Content
[0005] The utility model aims to provide a high-frequency induction welding device for steel pipe processing, which is safer and improves welding efficiency by performing high-frequency induction welding after the ends of steel pipes with non-standard lengths are butted.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] The utility model discloses a high-frequency induction welding device for processing steel pipes, comprising a base plate and a high-frequency induction welding main machine, a supporting assembly, a clamping assembly and a pressurizing mechanism arranged on the base plate, wherein an inductor for heating the end of the steel pipe is protruded from the front of the high-frequency induction welding main machine, and more than two groups of the supporting assemblies are respectively arranged on the left and right sides of the inductor, and the supporting assemblies horizontally support the steel pipes to be welded; two groups of the clamping assemblies are respectively arranged on the left and right sides of the inductor, and the clamping assemblies can clamp the steel pipes; the pressurizing mechanism is arranged between the two clamping assemblies, and the pressurizing mechanism can drive the two clamping assemblies to approach each other to pressurize the weld to complete the welding.
[0008] Furthermore, the support assembly includes a support column, a first sleeve, a first top screw and a support plate component. The two support columns are vertically arranged on the base plate. The upper and lower support plate components are slidably connected to the support columns through the first sleeves at both ends, and the steel pipe is supported between the upper and lower support plate components; the first top screw is threadedly connected to the side wall of the first sleeve, and the inner end of the first top screw abuts against the outer wall of the support column to lock the height of the first sleeve.
[0009] Furthermore, the support assembly also includes a roller drum; the two roller drums are rotatably mounted on the side of the support plate component facing the steel pipe through a support plate and a roller shaft, and the two roller drums are arranged in a V shape.
[0010] Furthermore, the clamping assembly includes a clamping column, a V-shaped block, a connecting plate and a first acting cylinder. The two clamping columns are vertically arranged on the pressurizing mechanism. The V-shaped block slides on the clamping columns through the sleeve guides at both ends. The two V-shaped blocks are clamped face to face on the upper and lower sides of the steel pipe; the two first acting cylinders are respectively arranged at the two ends of the upper V-shaped block, and the first acting cylinder is installed on the connecting plate outside the end sleeve of the V-shaped block. The piston rod of the first acting cylinder extends downward and is connected to the connecting plates at both ends of the lower V-shaped block.
[0011] Furthermore, it also includes a locking ring, which is sleeved on the clamping column and limited below the end sleeve of the V-block below; a second top screw is threadedly connected to the side wall of the locking ring, and the inner end of the second top screw is tightly pressed against the outer wall of the clamping column.
[0012] Furthermore, the pressurizing mechanism includes a linear guide, a sliding seat, a second acting cylinder and a long pull rod. The two linear guides are laid in parallel on the base plate, and the laying direction of the linear guides is parallel to the axial centerline direction of the steel pipe; the two sliding seats are connected to the linear guide through a ball slider guide; a clamping assembly is correspondingly arranged on each sliding seat; the second acting cylinder is horizontally installed on the right sliding seat, and the piston rod of the second acting cylinder extends to the left and is coaxially fixedly connected to the long pull rod, and the other end of the long pull rod is connected to the left sliding seat.
[0013] Furthermore, the first acting cylinder and the second acting cylinder are specifically pneumatic cylinders, hydraulic cylinders or electric push rods.
[0014] Furthermore, the root of the coil straight beam of the inductor is connected to electricity and cooling water through a detachable flexible joint.
[0015] Compared with the prior art, the beneficial technical effects of the utility model are:
[0016] Beneficial effects of the high-frequency induction welding device for steel pipe processing of the utility model:
[0017] The utility model discloses a high-frequency induction welding device for processing steel pipes. By respectively arranging support components on the left and right sides of the inductor, the two ends of the steel pipes that need to be butt-welded can be supported. By arranging the clamping components and the pressure mechanism, the axial pressure can be applied after the weld position is heated, thereby achieving effective welding of the two. The utility model discloses a high-frequency induction welding device for processing steel pipes. It is designed for high-frequency induction welding of the ends of steel pipes of non-standard lengths after butt-welding. Compared with traditional manual arc welding, it has no open flame and no arc damage, is safer, and can simultaneously complete the welding of the entire circular weld, thereby improving welding efficiency.
[0018] In addition, by guiding the support plate member to slide up and down on the support column through the first sleeve, the height adjustment of the support plate member can be achieved to adapt to the diameters of steel pipes of different specifications; by adding a roller cylinder to the support plate member, the roller cylinder directly contacts the outer wall of the steel pipe to achieve rolling friction contact, thereby reducing the resistance to axial pulling of the steel pipe. The steel pipe section at one end is supported by two support assemblies without bending, thereby ensuring the coaxiality of the two butt-welded steel pipes. By setting two V-blocks arranged face to face to clamp the upper and lower sides of the steel pipe, sufficient clamping force is ensured; the two V-blocks are tightened by the first acting cylinder to achieve clamping and loosening. By sleeve-connecting the locking ring on the clamping column and using the second top screw to lock the position, the lower V-block can be limited in height, ensuring that when the first acting cylinder is relaxed, the two V-blocks open their openings to facilitate the axial movement of the steel pipe. The linear guide rail and the sliding seat guide sliding match can realize that the welding pressure applied by the second working cylinder is applied strictly according to the axis center line; the second working cylinder adopts a cylinder and is equipped with a pneumatic control valve group, which can realize the control of the welding pressure of the pressurizing mechanism. By setting a detachable joint to install the sensor, sensors with different diameters can be replaced according to steel pipes with different diameters, thereby increasing the welding processing range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model will be further described below in conjunction with the accompanying drawings.
[0020] Figure 1 This is a schematic diagram of the main structure of the high-frequency induction welding device for processing steel pipes of the utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the utility model from the right side at the support component part;
[0022] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure of the middle support component;
[0023] Figure 4 It is a right view structural schematic diagram of the clamping assembly of the utility model.
[0024] Explanation of the reference numerals: 1. high-frequency induction welding host; 101. inductor; 102. flexible joint; 2. base plate; 3. support assembly; 301. support column; 302. first sleeve; 303. first top screw; 304. roller cylinder; 4. clamping assembly; 401. clamping column; 402. V-block; 403. connecting plate; 404. first acting cylinder; 5. locking ring; 501. second top screw; 6. linear guide; 7. sliding seat; 8. second acting cylinder; 9. long pull rod; 10. steel pipe. DETAILED DESCRIPTION
[0025] The core of the utility model is to provide a high-frequency induction welding device for steel pipe processing, which is safer and improves welding efficiency by performing high-frequency induction welding after the ends of steel pipes of non-standard lengths are butted.
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0028] With reference to the accompanying drawings, Figure 1 This is a schematic diagram of the main structure of the high-frequency induction welding device for processing steel pipes of the utility model; Figure 2 This is a schematic diagram of the structure of the utility model from the right side at the support component part; Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure of the middle support component; Figure 4 It is a right view structural schematic diagram of the clamping assembly of the utility model.
[0029] In a specific embodiment, Figures 1 to 4As shown, the high-frequency induction welding device for steel pipe processing of the utility model includes a base plate 2 and a high-frequency induction welding main unit 1, a support assembly 3, a clamping assembly 4 and a pressurizing mechanism installed on the base plate 2. An inductor 101 for heating the end of the steel pipe 10 protrudes from the front of the high-frequency induction welding main unit 1. The inductor 101 is an induction coil for induction heating, which is made of a spiral copper tube and has circulating cooling water inside. The high-frequency induction welding main unit 1 provides high-frequency current to the inductor 101, which is consistent with the existing high-frequency induction welding equipment and will not be elaborated. Two or more groups of support assemblies 3 are respectively arranged on the left and right sides of the inductor 101, and the support assemblies 3 horizontally support the steel pipe 10 to be welded, and the support assemblies 3 ensure that the steel pipes 10 to be spliced at both ends are horizontally coaxially aligned and spliced. Two groups of clamping assemblies 4 are respectively arranged on the left and right sides of the inductor 101, and the clamping assemblies 4 can clamp the outer wall of the steel pipe 10. The pressurizing mechanism is disposed between the two clamping assemblies 4 , and can drive the two clamping assemblies 4 to approach each other and pressurize the heated and red-hot molten weld joints to complete welding.
[0030] By arranging the support components 3 on the left and right sides of the inductor 101, the two ends of the steel pipe 10 that need to be butt-welded can be supported; by arranging the clamping component 4 and the pressure mechanism, the axial pressure can be applied after the weld position is heated, thereby achieving effective welding of the two. The high-frequency induction welding device for steel pipe processing of the utility model is used for high-frequency induction welding after the ends of steel pipes of non-standard lengths are butt-welded. Compared with traditional manual arc welding, there is no open flame and no arc damage, which is safer, and the welding of the entire annular weld is completed simultaneously, which also improves the welding efficiency.
[0031] In a specific embodiment of the present invention, Figures 1 to 3 As shown, the support assembly 3 includes a support column 301, a first sleeve 302, a first top screw 303 and a support plate member. Two support columns 301 are vertically arranged on the base plate 2, and the upper and lower support plate members are slidably sleeved on the support columns 301 through the first sleeves 302 at both ends, and the steel pipe 10 is supported between the upper and lower support plate members. The first top screw 303 is threadedly connected to the side wall of the first sleeve 302, and the inner end of the first top screw 303 abuts against the outer wall of the support column 301 and locks the height of the first sleeve 302.
[0032] Specifically, if Figure 3 As shown, the support assembly 3 also includes roller drums 304. Two roller drums 304 are rotatably mounted on the side of the support plate member facing the steel pipe 10 through a support plate and a roller shaft, and the two roller drums 304 are arranged in a V shape. The steel pipe 10 is supported between the two V shapes, that is, it is limited and supported by the four roller drums 304.
[0033] Specifically, if Figure 1As shown, the number of the supporting components 3 is four, and two supporting components 3 are respectively arranged on the left and right sides of the sensor 101 .
[0034] The support plate member is guided to slide up and down on the support column 301 through the first sleeve 302, so that the height of the support plate member can be adjusted to adapt to the diameters of steel pipes 10 of different specifications; by adding a roller barrel 304 to the support plate member, the roller barrel 304 directly contacts the outer wall of the steel pipe 10 to achieve rolling friction contact, thereby reducing the resistance of axially pulling the steel pipe 10. The steel pipe 10 section at one end is supported by two support assemblies 3 without bending, thereby ensuring the coaxiality of the two butt-welded steel pipes 10.
[0035] In a specific embodiment of the present invention, Figure 1 and Figure 4 As shown, the clamping assembly 4 includes a clamping column 401, a V-shaped block 402, a connecting plate 403 and a first acting cylinder 404. Two clamping columns 401 are vertically arranged on the pressurizing mechanism, and the V-shaped block 402 slides on the clamping column 401 through the sleeve guide at both ends, and the two V-shaped blocks 402 are clamped face to face on the upper and lower sides of the steel pipe 10. Two first acting cylinders 404 are respectively arranged at both ends of the upper V-shaped block 402, and the first acting cylinder 404 is installed on the connecting plate 403 outside the end sleeve of the V-shaped block 402, and the piston rod of the first acting cylinder 404 extends downward and is connected to the connecting plates 403 at both ends of the lower V-shaped block 402. The connecting plate 403 is welded and connected to the outer wall of the sleeve of the V-shaped block 402.
[0036] Specifically, if Figure 1 and Figure 4 As shown, the high-frequency induction welding device for steel pipe processing of the utility model further includes a locking ring 5, which is sleeved on the clamping column 401 and limited below the end sleeve of the lower V-shaped block 402. A second top screw 501 is threadedly connected to the side wall of the locking ring 5, and the inner end of the second top screw 501 is tightly pressed against the outer wall of the clamping column 401.
[0037] The upper and lower sides of the steel pipe 10 are clamped by setting two V-blocks 402 arranged face to face, ensuring sufficient clamping force; the two V-blocks 402 are tightened by the first cylinder 404 to achieve clamping and loosening. The locking ring 5 is sleeved on the clamping column 401 and the position is locked using the second top screw 501, so that the lower V-block 402 can be limited in height direction, ensuring that when the first cylinder 404 is relaxed, the two V-blocks 402 open their openings to facilitate the axial movement of the steel pipe 10.
[0038] In a specific embodiment of the utility model, the pressurizing mechanism includes a linear guide rail 6, a sliding seat 7, a second acting cylinder 8 and a long pull rod 9. Two linear guide rails 6 are laid in parallel on the base plate 2, and the laying direction of the linear guide rails 6 is parallel to the axial centerline direction of the steel pipe 10. The linear guide rail 6 is located between two supporting columns 301. The two sliding seats 7 are connected to the linear guide rail 6 through the ball slider guide. A clamping assembly 4 is correspondingly arranged on each sliding seat 7, that is, the sliding seat 7 can move left and right along the linear guide rail 6 with the clamping assembly 4. The second acting cylinder 8 is horizontally installed on the right sliding seat 7, and the left side of the sliding seat 7 is fixedly connected to the side vertical plate. The second acting cylinder 8 is installed on the side vertical plate through the end flange. The piston rod of the second acting cylinder 8 extends to the left and is coaxially fixedly connected to the long pull rod 9. The other end of the long pull rod 9 is connected to the left sliding seat 7. The right side of the sliding seat 7 is welded and installed with an end vertical plate. The end screw section of the long pull rod 9 passes through the through hole of the end vertical plate and is locked with a nut.
[0039] Specifically, if Figure 1 and Figure 4 As shown, the first working cylinder 404 and the second working cylinder 8 are specifically pneumatic cylinders, hydraulic cylinders or electric push rods.
[0040] Specifically, the high-frequency induction welding device for steel pipe processing of the utility model also includes an electronic control system and an air pressure control valve group. The first acting cylinder 404 and the second acting cylinder 8 both use air cylinders, which can respond quickly and control the air pressure at the same time, thereby realizing the control of the clamping force of the clamping assembly 4 and the control of the welding pressure of the pressurizing mechanism.
[0041] Through the guided sliding cooperation of the linear guide rail 6 and the sliding seat 7, the welding pressure applied by the second acting cylinder 8 can be strictly applied along the axis; by using a cylinder and matching it with a pneumatic control valve group, the welding pressure intensity of the pressurizing mechanism can be controlled.
[0042] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the root of the coil straight beam of the inductor 101 is connected to electricity and cooling water through a detachable flexible joint 102.
[0043] By providing a detachable flexible joint 102 to install the sensor 101, the sensor 101 with different diameters can be replaced according to the steel pipes 10 with different diameters, thereby increasing the welding processing range of the equipment.
[0044] The use process of the high-frequency induction welding device for steel pipe processing of the utility model is as follows: first, according to the diameter of the steel pipe 10 to be welded, a suitable sensor 101 is selected for replacement and installation, and at the same time, the height of the first sleeve 302 of the support assembly 3 on the support column 301 is roughly adjusted so that the V-shaped roller cylinder 304 can pass through and support the steel pipe 10. The first action cylinder 404 is in the ejection state, and the two V-shaped blocks 402 open the largest opening, and the two sections of the steel pipe 10 to be spliced are respectively inserted into the two support assemblies 3 from the left and right sides, and the end welds are evenly coated with flux and are in the sensor 101. Continue to slightly adjust the height of the first sleeve 302 on the support column 301 to ensure that the two sections of the steel pipe 10 are coaxially aligned. The high-frequency induction welding host 1 starts working, and the sensor 101 heats the ports of the two sections of the steel pipe 10. When the infrared temperature sensor detects that the temperature meets the set requirements, the first action cylinder 404 contracts, and the two V-shaped blocks 402 clamp the outer wall of the steel pipe 10. The second acting cylinder 8 retracts, the two sliding seats 7 are pulled closer, and welding pressure is applied at the weld joint to ensure that the welding of the two sections of steel pipes 10 is effectively completed. After the set time is reached, the first acting cylinder 404 and the second acting cylinder 8 both make an ejection action, and the high-frequency induction welding host 1 stops supplying high-frequency current. The welded steel pipe 10 is pulled out from the left or right side, and the next group of butt welding is started.
[0045] The high-frequency induction welding device for processing steel pipes of the utility model can support the two ends of the steel pipes 10 that need to be butt-welded by respectively setting the support components 3 on the left and right sides of the inductor 101; by setting the clamping component 4 and the pressure mechanism, the axial pressure can be applied after the weld position is heated, thereby realizing effective welding of the two. The high-frequency induction welding device for processing steel pipes of the utility model is used for high-frequency induction welding after the ends of non-standard length steel pipes are butt-welded. Compared with traditional manual arc welding, there is no open flame and no arc damage, which is safer, and the welding of the entire circular weld is completed synchronously, which also improves the welding efficiency. In addition, the support plate component can be guided and slid up and down on the support column 301 through the first sleeve 302, so that the height adjustment of the support plate component can be realized, thereby realizing adaptation to the diameters of steel pipes 10 of different specifications; by adding a roller barrel 304 to the support plate component, the roller barrel 304 directly contacts the outer wall of the steel pipe 10 to realize rolling friction contact, thereby reducing the resistance of axially pulling the steel pipe 10. The steel pipe 10 section at one end is supported by two support assemblies 3 without bending, thus ensuring the coaxiality of the two butt-welded steel pipes 10. Sufficient clamping force is ensured by setting two V-blocks 402 arranged face to face to clamp the upper and lower sides of the steel pipe 10; the two V-blocks 402 are tightened by the first acting cylinder 404 to achieve clamping and loosening. The locking ring 5 is sleeved on the clamping column 401 and the position is locked using the second top screw 501, so that the lower V-block 402 can be limited in height, ensuring that when the first acting cylinder 404 is relaxed, the two V-blocks 402 open their openings to facilitate the axial movement of the steel pipe 10. The linear guide 6 and the sliding seat 7 guide the sliding cooperation, so that the welding pressure applied by the second acting cylinder 8 can be strictly applied according to the axis center line; the second acting cylinder 8 uses a cylinder and is equipped with a pneumatic control valve group, so that the welding pressure of the pressurizing mechanism can be controlled. By providing a detachable flexible joint 102 to install the sensor 101, the sensor 101 with different diameters can be replaced according to the steel pipes 10 with different diameters, thereby increasing the welding processing range of the equipment.
[0046] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.
[0047] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.
Claims
1. A high-frequency induction welding device for steel pipe processing, characterized in that: The invention comprises a base plate (2) and a high-frequency induction welding main machine (1) arranged on the base plate (2), a support component (3), a clamping component (4) and a pressurizing mechanism, wherein an inductor (101) for heating the end of a steel pipe (10) is protruded from the front of the high-frequency induction welding main machine (1), and two or more groups of the support components (3) are respectively arranged on the left and right sides of the inductor (101), and the support components (3) horizontally support the steel pipe (10) to be welded; two groups of the clamping components (4) are respectively arranged on the left and right sides of the inductor (101), and the clamping components (4) can clamp the steel pipe (10); and the pressurizing mechanism is arranged between the two clamping components (4), and the pressurizing mechanism can drive the two clamping components (4) to approach each other to complete welding by pressurizing the weld.
2. The high-frequency induction welding device for steel pipe processing according to claim 1, characterized in that: The support assembly (3) comprises a support column (301), a first sleeve (302), a first top screw (303) and a support plate component. The two support columns (301) are vertically arranged on the base plate (2). The upper and lower support plate components are slidably sleeved on the support columns (301) through the first sleeves (302) at both ends. The steel pipe (10) is supported between the upper and lower support plate components. The first top screw (303) is threadedly connected to the side wall of the first sleeve (302), and the inner end of the first top screw (303) abuts against the outer wall of the support column (301) to lock the height of the first sleeve (302).
3. The high-frequency induction welding device for steel pipe processing according to claim 2, characterized in that: The support assembly (3) further comprises a roller drum (304); the two roller drums (304) are rotatably mounted on a side of the support plate component facing the steel pipe (10) via a support plate and a roller shaft, and the two roller drums (304) are arranged in a V-shape.
4. The high-frequency induction welding device for steel pipe processing according to claim 1, characterized in that: The clamping assembly (4) comprises a clamping column (401), a V-shaped block (402), a connecting plate (403) and a first acting cylinder (404); the two clamping columns (401) are vertically arranged on the pressurizing mechanism; the V-shaped block (402) is guided and slid on the clamping column (401) by sleeves at both ends; the two V-shaped blocks (402) are face-to-face clamped on the upper and lower sides of the steel pipe (10); the two first acting cylinders (404) are respectively arranged at the two ends of the upper V-shaped block (402); the first acting cylinder (404) is installed on the connecting plate (403) outside the end sleeve of the V-shaped block (402); the piston rod of the first acting cylinder (404) extends downward and is connected to the connecting plates (403) at the two ends of the lower V-shaped block (402).
5. The high-frequency induction welding device for steel pipe processing according to claim 4, characterized in that: It also includes a locking ring (5), which is sleeved on the clamping column (401) and is limited below the end sleeve of the V-shaped block (402) below; a second top screw (501) is threadedly connected to the side wall of the locking ring (5), and the inner end of the second top screw (501) is tightly pressed against the outer wall of the clamping column (401).
6. The high-frequency induction welding device for steel pipe processing according to claim 4 or 5, characterized in that: The pressurizing mechanism comprises a linear guide rail (6), a sliding seat (7), a second acting cylinder (8) and a long pull rod (9); the two linear guide rails (6) are laid in parallel on the base plate (2), and the laying direction of the linear guide rails (6) is parallel to the axial center line direction of the steel pipe (10); the two sliding seats (7) are connected to the linear guide rail (6) through a ball slider guide; a clamping assembly (4) is correspondingly arranged on each sliding seat (7); the second acting cylinder (8) is horizontally installed on the right sliding seat (7), and the piston rod of the second acting cylinder (8) extends to the left and is coaxially fixedly connected to the long pull rod (9), and the other end of the long pull rod (9) is connected to the left sliding seat (7).
7. The high-frequency induction welding device for steel pipe processing according to claim 6, characterized in that: The first acting cylinder (404) and the second acting cylinder (8) are specifically pneumatic cylinders, hydraulic cylinders or electric push rods.
8. The high-frequency induction welding device for steel pipe processing according to claim 1, characterized in that: The root of the coil straight beam of the inductor (101) is connected to electricity and cooling water via a detachable flexible joint (102).