High-frequency circular pipe welding production line and production mode

Abstract

The invention belongs to the technical field of welding, and discloses a high-frequency round pipe welding production line and a production mode, the high-frequency round pipe welding production line comprises a conveying mechanism, and the conveying mechanism is provided with a feeding mechanism, a welding mechanism and a discharging mechanism; the welding mechanism comprises a protective cover, and an inner core and a pressure applying assembly are arranged in the protective cover; the pressing assembly comprises pressing rollers symmetrically arranged on the two sides of the blank and a pressing wheel arranged at the top end of the blank and corresponding to the welding seam, and a supporting block corresponding to the pressing wheel is arranged on the inner core. The discharging mechanism comprises a post-processing box arranged on the conveying mechanism, a detection assembly is arranged in the post-processing box, and the pipe material enters the next procedure after penetrating through the detection assembly. The device is simple in structure and convenient to use, automatic welding of blanks can be achieved, meanwhile, the stress position is supported in the welding process, deformation in the welding process is reduced, and the welding quality is improved; and meanwhile, the welded and formed pipe material is treated in the post-treatment box, and the pipe material is detected, so that the production efficiency of the circular pipe is improved, and the production benefit is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a high-frequency round pipe welding production line and a production method. Background Art

[0002] High-frequency round tube welding mainly utilizes the skin effect and proximity effect of high-frequency current, which can quickly heat the metal structure of the weldment to a molten or plastic state, thereby achieving welding. It is an important steel tube forming process and has been widely used in the production of round tubes.

[0003] When the existing high-frequency welding uses induction coil heating, the induction coil is generally wound around the outer circumference of the open tube. The induction coil current generally uses a high-frequency current of about 100-400kHz. The high-frequency current heats the two end faces of the open tube to the melting temperature. At the same time, an impedance of strong magnetic material is configured on the inner surface of the open tube. The impedance is mainly used to limit the generation of the induced current on the two end faces of the open tube. However, in the above-mentioned welding method, the support for the steel pipe during welding is insufficient, which makes the welded steel pipe easily deformed, resulting in reduced steel pipe forming quality. At the same time, there is no timely and effective processing and detection mechanism for the welded steel pipe, which reduces product quality and production efficiency.

[0004] Therefore, the present application designs a high-frequency round tube welding production line and production method to solve the above-mentioned technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a high-frequency round tube welding production line and a production method.

[0006] To achieve the above object, the present invention provides a high-frequency round tube welding production line, comprising: a conveying mechanism, wherein a feeding mechanism, a welding mechanism and a discharging mechanism are sequentially arranged along a conveying direction, and a blank is driven by the conveying mechanism to pass through the feeding mechanism, the welding mechanism and the discharging mechanism to form a tube material;

[0007] The welding mechanism comprises a protective cover arranged on the conveying mechanism, wherein an inner core for supporting the blank and a pressure component for applying pressure to the welding position of the blank are arranged in the protective cover;

[0008] The pressure assembly includes pressure rollers symmetrically arranged on both sides of the blank and a clamping wheel arranged at the top of the blank corresponding to the weld, and a support block corresponding to the clamping wheel is arranged on the inner core;

[0009] The discharging mechanism comprises a post-processing box arranged on the conveying mechanism, a detection component is arranged in the post-processing box, and the pipe material enters the next process after passing through the detection component.

[0010] Preferably, the pressure assembly also includes adjustment frames correspondingly arranged on both sides of the blank, the pressure roller is rotatably connected to the adjustment frame, the adjustment frame is provided with a driving assembly connected to the pressure roller, and any of the adjustment frames is provided with a measuring assembly.

[0011] Preferably, the measuring assembly includes a fixed plate fixedly connected to the adjusting frame, and the fixed plate is slidably connected to a movable plate at one end away from the adjusting frame. A temperature sensor is provided on the movable plate, and the temperature sensor is electrically connected to an induction coil used to heat the blank.

[0012] Preferably, a wedge-shaped cleaning block is lifted and lowered in the protective cover, the cleaning block is arranged corresponding to the weld of the pipe material, and the cutting edge of the cleaning block is arranged opposite to the moving direction of the pipe material.

[0013] Preferably, an adjusting screw hole corresponding to the welding position is opened on the inner core, an adjusting screw rod is connected to the inner thread of the adjusting screw hole, and the supporting block is limit-connected to the top end of the adjusting screw rod.

[0014] Preferably, the detection assembly includes a detection ring arranged corresponding to the axis of the conveying mechanism, and a plurality of detection elements are arranged at equal intervals on the inner wall of the detection ring. The detection elements extend into the inner cavity of the detection ring and are arranged in contact with the outer wall of the pipe material passing through the detection ring.

[0015] Preferably, the detection element includes a detection hole opened on the inner wall of the detection ring, a detection rod is slidably connected in the detection hole, the detection rod extends out of the detection hole and is fixedly connected with a detection head, and the detection head is arranged in contact with the outer wall of the pipe material; a detection spring in a compressed state is arranged at one end of the detection rod located in the detection hole, and the detection spring is arranged in abutment with a pressure sensor arranged in the detection hole.

[0016] Preferably, one end of the detection rod located in the detection hole is fixedly connected to a guide plate, and the detection spring is arranged between the guide plate and the pressure sensor; the end of the guide plate away from the pressure sensor is abutted against a control plate, and the control plate is threadedly connected to a control screw rotatably connected to the detection ring.

[0017] Preferably, a connecting pipe is provided between the protective cover and the post-processing box, and an air filter is provided on the connecting pipe.

[0018] A high-frequency round tube welding production method comprises the following steps:

[0019] Cut the sheet and roll it into a tube to form a blank;

[0020] Transfer the blank to the inlet direction of the conveying mechanism, and fix the blank at the center position of the conveying mechanism so that the tube center position of the blank corresponds to the inner core;

[0021] Adjust the position of the support block so that the outer edge of the support block is set correspondingly to the inner wall of the pipe material;

[0022] The blank enters the protective cover to be heated, and is pressed by the pressure component, and the blank is pressed at the position of the support block to complete welding and form a tube;

[0023] The pipe material enters the post-processing box for processing, and the quality of the pipe material is tested by the detection component;

[0024] The pipes are led out from the post-processing box and stored.

[0025] Compared with the prior art, the present invention has the following advantages and technical effects: the present invention discloses a high-frequency round tube welding production line and a production method, wherein the blank is transported by a conveying mechanism and then welded into a tube material after passing through a welding mechanism, and the formed tube material is post-processed by a discharging mechanism to detect the quality of the tube material and improve the molding quality; after the blank enters the protective cover driven by the conveying mechanism, the inner core supports the blank, and then the pressure component applies pressure to both sides of the blank, so that the gap of the blank converges to the middle, and then the materials on both sides converge to form a whole; the two pressure rollers converge to the middle, so that the blank The material is evenly stressed, and a clamping wheel and a support block are also arranged at the joint position, which apply pressure to the inside and outside of the blank, and then apply pressure to the weld position from multiple angles to ensure the firmness of the connection at the joint position. At the same time, the setting of the support block can also support the blank, thereby reducing the probability and degree of deformation of the high-temperature softened blank, thereby improving the quality of pipe forming; the welded pipe enters the post-processing box driven by the conveying mechanism to accelerate the cooling of the pipe. At the same time, the pipe is inspected by the detection component to detect the external roundness of the pipe, which is convenient for controlling the forming quality of the pipe.

[0026] The invention has a simple structure and is easy to use, and can realize automatic welding of blanks. At the same time, the stress-bearing position is supported during the welding process, thereby reducing deformation during the welding process and improving welding quality. At the same time, the pipe material after welding is processed in a post-processing box, and the pipe material is tested, thereby improving the production efficiency of round pipes and improving production benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 This is an axial view of the high-frequency round tube welding production line of the present invention;

[0029] Figure 2 This is a front view of the high-frequency round tube welding production line of the present invention;

[0030] Figure 3 This is an axial view of the pressure assembly of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the pressure-applying assembly of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the fixing plate of the present invention;

[0033] Figure 6 It is a schematic diagram of the side view structure of the detection component of the present invention;

[0034] Figure 7 For the present invention Figure 6 A partial enlarged view of middle A;

[0035] Figure 8 This is a schematic diagram of the main structure of the detection component of the present invention;

[0036] In the figure: 1, blank; 2, pipe material; 3, conveying mechanism; 4, feeding mechanism; 5, welding mechanism; 6, discharging mechanism; 7, connecting pipe; 8, air filter; 31, frame; 32, base block; 33, telescopic rod; 34, conveying block; 51, protective cover; 52, inner core; 53, pressure roller; 54, clamping wheel; 55, support block; 56, adjustment frame; 57, fixed plate; 58, movable plate; 59, movable groove; 510, temperature sensor; 511, induction coil; 512, cleaning block; 513, cutting edge; 514, adjusting screw hole; 515, adjusting screw; 516, detection Nut; 517, detection chamber; 518, ball bearing; 519, mounting groove; 520, movable motor; 521, movable screw; 522, movable screw hole; 523, driving motor; 524, driving wheel; 525, driven wheel; 526, transmission shaft; 527, transmission belt; 528, adjustment rod; 529, core frame; 61, post-processing box; 62, detection ring; 63, detection element; 64, detection hole; 65, detection rod; 66, detection head; 67, detection spring; 68, pressure sensor; 69, guide plate; 610, guide groove; 611, control board; 612, control screw. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Reference Figure 1-Figure 8 As shown, this embodiment provides a high-frequency round tube welding production line, including: a conveying mechanism 3, the conveying mechanism 3 is sequentially provided with a feeding mechanism 4, a welding mechanism 5 and a discharging mechanism 6 along the conveying direction, and the blank 1 is driven by the conveying mechanism 3 and passes through the feeding mechanism 4, the welding mechanism 5 and the discharging mechanism 6 to form a tube material 2;

[0040] The welding mechanism 5 comprises a protective cover 51 arranged on the conveying mechanism 3, and an inner core 52 for supporting the blank 1 and a pressure component for applying pressure to the welding position of the blank 1 are arranged in the protective cover 51;

[0041] The pressure assembly includes pressure rollers 53 symmetrically arranged on both sides of the blank 1 and a pressure wheel 54 arranged at the top of the blank 1 corresponding to the weld, and a support block 55 corresponding to the pressure wheel 54 is arranged on the inner core 52;

[0042] The discharging mechanism 6 comprises a post-processing box 61 arranged on the conveying mechanism 3. A detection component is arranged in the post-processing box 61. The pipe material 2 enters the next process after passing through the detection component.

[0043] The present invention discloses a high-frequency round tube welding production line and production method. A blank 1 is conveyed by a conveying mechanism 3 and then passed through a welding mechanism 5 to be welded into a tube material 2. The formed tube material 2 is post-processed by a discharging mechanism 6 to detect the quality of the tube material 2 and improve the molding quality. After the blank 1 enters a protective cover 51 driven by the conveying mechanism 3, the blank 1 is supported by an inner core 52, and then pressure is applied to both sides of the blank 1 by a pressure component, so that the gap of the blank 1 converges to the middle, and then the materials on both sides converge to form a whole. Two pressure rollers 53 converge to the middle, so that the blank 1 is evenly stressed, and at the same time, the pressure is applied to the blank 1 at the seam. The position is also provided with a clamping wheel 54 and a support block 55, which apply pressure to the blank 1 on both sides inside and outside, and then apply pressure to the weld position from multiple angles to ensure the firmness of the connection at the joint position. At the same time, the setting of the support block 55 can also support the blank 1, thereby reducing the probability and degree of deformation of the high-temperature softened blank 1, thereby improving the quality of the tube material 2; the welded tube material 2 enters the post-processing box 61 under the drive of the conveying mechanism 3, accelerates the cooling of the tube material 2, and at the same time, the tube material 2 is detected by the detection component to detect the external roundness of the tube material 2, so as to facilitate the control of the forming quality of the tube material 2. The present invention has a simple structure and is easy to use. It can realize the automatic welding of the blank 1. At the same time, the welding process supports the stress position, reduces the deformation of the welding process, and improves the welding quality; at the same time, the welded tube material 2 is processed in the post-processing box 61, and the tube material 2 is detected, so as to improve the production efficiency of round tubes and improve the production benefits.

[0044] Furthermore, one end of the inner core 52 of the present embodiment is fixed by a core frame 529, and the height of the core frame 529 is adjustable, which is suitable for supporting round tubes of different models.

[0045] Furthermore, the core frame 529 of this embodiment is arranged on the side of the inner core 52 opposite to the conveying direction of the conveying mechanism 3, and can pass through the gap of the blank 1, and also avoid interference with the formed tube material 2.

[0046] In a further optimized solution, the pressure assembly also includes an adjustment frame 56 correspondingly arranged on both sides of the blank 1, the pressure roller 53 is rotatably connected to the adjustment frame 56, and a driving assembly connected to the pressure roller 53 is arranged on the adjustment frame 56, and a measuring assembly is arranged on any of the adjustment frames 56. The adjustment frame 56 is fixed by an adjustment rod 528, and the distance between the adjustment frame 56 and the inner core 52 can be adjusted to achieve pressure on different types of pipe materials 2; the driving assembly drives the pressure roller 53 on the adjustment frame 56 to rotate, thereby achieving extrusion of the blank 1 and avoiding jamming; the measuring assembly is arranged on any of the adjustment frames 56 to detect the temperature of the pipe blank 1 in the welding area, so that the welding area is at the optimal welding temperature.

[0047] Furthermore, a driving motor 523 is installed on the adjustment frame 56 of this embodiment, and the output shaft of the driving motor 523 is connected to the driving wheel 524 through the transmission belt 527. The driving wheel 524 is connected to the driven wheel 525 through the transmission belt 527. The driven wheel 525 drives the pressure roller 53 to rotate through the transmission shaft 526.

[0048] A further optimized solution is that the measuring assembly includes a fixed plate 57 fixedly connected to the adjusting frame 56, and the fixed plate 57 is slidably connected to a movable plate 58 at one end away from the adjusting frame 56, and a temperature sensor 510 is provided on the movable plate 58, and the temperature sensor 510 is electrically connected to an induction coil 511 for heating the blank 1. The fixed plate 57 is fixedly connected to the end of any adjusting frame 56, and a movable groove 59 is provided inside the fixed plate 57, in which a movable plate 58 is slidably connected, and a temperature sensor 510 is installed at the end of the movable plate 58; when in use, a mounting groove 519 corresponding to the fixed plate 57 is provided on the adjusting frame 56, and a movable motor 520 is installed in the mounting groove 519, and the output shaft of the movable motor 520 drives the movable screw 521 to rotate, and the movable screw 521 is threadedly connected with the movable screw hole 522 provided on the movable plate 58, so as to drive the movable plate 58 to extend and retract in the movable groove 59, and drive the temperature sensor 510 to approach or move away from the welding position; the temperature data measured by the temperature sensor 510 is transmitted to the induction coil 511, and the current parameters of the induction coil 511 are adjusted, thereby adjusting the heating temperature of the blank 1 and adjusting the welding process.

[0049] Furthermore, a plurality of limiting grooves are provided in the movable groove 59 of the present embodiment, and the limiting grooves and the guide blocks at the ends of the movable plate 58 are limited to ensure the stability of the movable plate 58 .

[0050] Further optimization scheme, a wedge-shaped cleaning block 512 is provided in the protective cover 51 for lifting, the cleaning block 512 is provided corresponding to the weld of the pipe material 2, and the cutting edge 513 of the cleaning block 512 is provided opposite to the movement direction of the pipe material 2. The cleaning block 512 is provided at the rear end of the welding position, and its bottom surface is an arc surface adapted to the pipe material 2, and the cutting edge 513 is opposite to the movement direction of the pipe material 2. The pipe material 2 after welding moves toward the cutting edge 513, and the impurities and residual welding slag generated by welding are cut, so as to avoid the welding slag and impurities solidified on the pipe material 2 after cooling, and improve the forming quality of the pipe material 2.

[0051] Furthermore, the cleaning block 512 of this embodiment is height-adjustable and replaceable, and can be applied to different types of tubes.

[0052] In a further optimized solution, an adjusting screw hole 514 corresponding to the welding position is provided on the inner core 52, an adjusting screw rod 515 is connected to the inner thread of the adjusting screw hole 514, and the support block 55 is limitedly connected to the top of the adjusting screw rod 515. The support block 55 is installed in the adjusting screw hole 514 through the adjusting screw rod 515, so that the support block 55 supports the welding position and reduces the probability of welding deformation.

[0053] In a further optimized solution, the detection assembly includes a detection ring 62 arranged corresponding to the axis of the conveying mechanism 3, and a plurality of detection elements 63 are arranged at equal intervals on the inner wall of the detection ring 62. The detection elements 63 extend into the inner cavity of the detection ring 62 and contact the outer wall of the pipe material 2 passing through the detection ring 62. The height of the detection ring 62 can be adjusted according to the pipe type. The pipe material 2 passes through the center position of the detection ring 62, and the plurality of detection elements 63 on the inner wall of the detection ring 62 abut against the outer wall of the pipe material 2, thereby detecting the roundness of the outer wall of the pipe material 2, and marking the area where the roundness of the outer wall of the pipe material 2 exceeds the allowable error range, so as to facilitate subsequent processing.

[0054] In a further optimized solution, the detection element 63 includes a detection hole 64 provided on the inner wall of the detection ring 62, a detection rod 65 is slidably connected in the detection hole 64, the detection rod 65 extends out of the detection hole 64 and is fixedly connected with a detection head 66, and the detection head 66 is arranged in contact with the outer wall of the pipe material 2; a detection spring 67 in a compressed state is arranged at one end of the detection rod 65 located in the detection hole 64, and the detection spring 67 is arranged in contact with a pressure sensor 68 arranged in the detection hole 64. When the pipe material 2 passes through the detection ring 62, the ball 518 on the detection head 66 is arranged in contact with the outer wall of the pipe material 2. When the outer wall of the pipe material 2 fluctuates, the pressure on the detection head 66 changes, which is transmitted to the pressure sensor 68 through the detection rod 65 and the detection spring 67, and then the roundness quality of the pipe material 2 is detected by the pressure change. When the pressure fluctuation exceeds the allowable range, the marking device (marker pen or other marking method, which is a conventional technology and is not shown in the figure here) of the control detection component is marked to indicate the outer wall of the pipe material 2.

[0055] Further optimized solution, one end of the detection rod 65 located in the detection hole 64 is fixedly connected with a guide plate 69, and the detection spring 67 is arranged between the guide plate 69 and the pressure sensor 68; the end of the guide plate 69 away from the pressure sensor 68 is abutted with a control plate 611, and the control plate 611 is threadedly connected with a control screw 612 rotatably connected in the detection ring 62. Two control screws 612 are symmetrically arranged in each detection hole 64 on the outer wall of the detection ring 62, and the control screw 612 is threadedly connected with a control plate 611, which extends into the detection hole 64 and abuts against the side of the guide plate 69 away from the detection spring 67. When the outer diameter of the pipe material 2 changes, the position of the guide plate 69 can be adjusted by the control plate 611, and then the length of the detection rod 65 extended can be adjusted.

[0056] Furthermore, a detection cavity 517 is provided at the end of the detection rod 65 of the present embodiment away from the guide plate 69, and the detection head 66 is telescopically arranged in the detection cavity 517; the end of the detection rod 65 is rotatably connected with a detection nut 516, and the detection nut 516 is threadedly connected to the outer wall of the detection head 66, and the length of the detection head 66 extending into the detection cavity 517 can be adjusted by rotating the detection nut 516, thereby adjusting the length of the detection head 66.

[0057] Furthermore, the conveying mechanism 3 includes a base block 32 arranged on the frame 31, a telescopic rod 33 is installed on the base block 32, and a conveying block 34 is arranged at the top of the telescopic rod 33 for driving the movement of the pipe material 2; the setting of the telescopic rod 33 can adjust the height of the conveying block 34, adjust the height of the supporting pipe material 2, so that the center of the pipe material 2 coincides with the center of the detection ring 62.

[0058] Further optimization scheme, a connecting pipe 7 is provided between the protective cover 51 and the post-processing box 61, and an air filter 8 is provided on the connecting pipe 7. In this example, a fan for accelerating the cooling of the pipe material 2 is provided in the post-processing box 61, accelerating the cooling of the pipe material 2; the hot air generated after cooling enters the protective cover 51 through the connecting pipe 7, increases the temperature of the protective cover 51, preheats the blank 1 to be welded, reduces the energy consumption of heating the blank 1, and reasonably recovers the waste heat; the air filter 8 is used to filter impurities in the hot air to reduce the influence of impurities on welding.

[0059] A high-frequency round tube welding production method comprises the following steps:

[0060] The plate is cut and preliminarily rolled to form a blank 1; the plate is cut in advance and rolled by equipment so that the plate forms a blank 1 required for welding;

[0061] The blank 1 is transferred to the entrance direction of the conveying mechanism 3, and the blank 1 is fixed at the center position of the conveying mechanism 3, so that the tube center position of the blank 1 is set corresponding to the inner core 52; the blank 1 is installed at the entrance position of the conveying mechanism 3, and the height of the conveying block 34 is adjusted so that the axis of the blank 1 is aligned with the center of the inner core 52 and can be sleeved outside the inner core 52, and the core frame 529 passes through the gap on the blank 1 that is not welded;

[0062] Adjust the position of the support block 55 so that the outer edge of the support block 55 is set corresponding to the inner wall of the tube material 2; adjust the positions of the support block 55, the pressure roller 53 and the clamping wheel 54 so that they move to corresponding positions, so as to facilitate welding of the blank 1 of the set model, and move the temperature sensor 510 to the welding position;

[0063] The blank 1 enters the protective cover 51 to be heated, and the blank 1 is pressed by the pressure component, and the blank 1 is pressed at the position of the support block 55 to complete welding and form the tube material 2; the induction coil 511 is energized to heat the blank 1, so that the leather material enters a red-hot softening state, and then the blank 1 is driven to move, so that the support block 55, the pressure roller 53 and the clamping wheel 54 press and weld the red-hot tube material 2 to remove cracks and form the tube material 2;

[0064] The tube material 2 enters the post-processing box 61 for processing, and the quality of the tube material 2 is detected by the detection component; the tube material 2 is sent to the post-processing box 61, and the tube material 2 is detected and ventilated and cooled, and the hot air after the tube material 2 is cooled is sent to the protective cover 51 through the connecting pipe 7 and the air filter 8 to preheat the blank 1 and recover the heat;

[0065] The pipe material 2 is led out from the post-processing box 61 and stored; the processed pipe material 2 is cut into corresponding standard lengths and stored.

[0066] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0067] The embodiments described above are only descriptions of the preferred modes 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 all fall within the protection scope determined by the claims of the present invention.

Claims

1. A high frequency round tube welding production line, characterized in that: include: A conveying mechanism (3), wherein the conveying mechanism (3) is provided with a loading mechanism (4), a welding mechanism (5) and a discharging mechanism (6) in sequence along a conveying direction, and the blank (1) is driven by the conveying mechanism (3) to pass through the loading mechanism (4), the welding mechanism (5) and the discharging mechanism (6) to form a tube material (2); The welding mechanism (5) comprises a protective cover (51) arranged on the conveying mechanism (3), wherein an inner core (52) for supporting the blank (1) and a pressure component for applying pressure to the welding position of the blank (1) are arranged in the protective cover (51); The pressure assembly comprises pressure rollers (53) symmetrically arranged on both sides of the blank (1) and a pressure wheel (54) arranged at the top of the blank (1) corresponding to the weld, and a support block (55) corresponding to the pressure wheel (54) is arranged on the inner core (52); The discharging mechanism (6) comprises a post-processing box (61) arranged on the conveying mechanism (3), wherein a detection component is arranged in the post-processing box (61), and the pipe material (2) enters the next process after passing through the detection component.

2. The high frequency round tube welding production line according to claim 1 is characterized in that: The pressure assembly also includes adjustment frames (56) correspondingly arranged on both sides of the blank (1), the pressure roller (53) is rotatably connected to the adjustment frame (56), the adjustment frame (56) is provided with a driving assembly connected to the pressure roller (53), and any of the adjustment frames (56) is provided with a measuring assembly.

3. The high frequency round tube welding production line according to claim 2 is characterized in that: The measuring assembly comprises a fixed plate (57) fixedly connected to the adjusting frame (56); an end of the fixed plate (57) away from the adjusting frame (56) is slidably connected to a movable plate (58); a temperature sensor (510) is arranged on the movable plate (58); and the temperature sensor (510) is electrically connected to an induction coil (511) used for heating the blank (1).

4. The high frequency round tube welding production line according to claim 1 is characterized in that: A wedge-shaped cleaning block (512) is provided in the protective cover (51) for lifting and lowering, the cleaning block (512) is provided corresponding to the welding seam of the pipe material (2), and the cutting edge (513) of the cleaning block (512) is provided opposite to the moving direction of the pipe material (2).

5. The high frequency round tube welding production line according to claim 1 is characterized in that: The inner core (52) is provided with an adjusting screw hole (514) corresponding to the welding position, the adjusting screw hole (514) is internally threadedly connected with an adjusting screw rod (515), and the supporting block (55) is positionally connected to the top end of the adjusting screw rod (515).

6. The high frequency round tube welding production line according to claim 1 is characterized in that: The detection assembly comprises a detection ring (62) arranged corresponding to the axis of the conveying mechanism (3), and a plurality of detection elements (63) are arranged at equal intervals on the inner wall of the detection ring (62). The detection elements (63) extend into the inner cavity of the detection ring (62) and are arranged in contact with the outer wall of the pipe material (2) passing through the detection ring (62).

7. The high frequency round tube welding production line according to claim 6 is characterized in that: The detection element (63) comprises a detection hole (64) provided on the inner wall of the detection ring (62), a detection rod (65) being slidably connected in the detection hole (64), the detection rod (65) extending out of the detection hole (64) and being fixedly connected with a detection head (66), the detection head (66) being arranged in contact with the outer wall of the pipe material (2); a detection spring (67) in a compressed state is arranged at one end of the detection rod (65) located in the detection hole (64), and the detection spring (67) is arranged in contact with a pressure sensor (68) arranged in the detection hole (64).

8. The high frequency round tube welding production line according to claim 7 is characterized in that: One end of the detection rod (65) located in the detection hole (64) is fixedly connected to a guide plate (69), and the detection spring (67) is arranged between the guide plate (69) and the pressure sensor (68); one end of the guide plate (69) away from the pressure sensor (68) is abutted against a control plate (611), and the control plate (611) is threadedly connected to a control screw (612) rotatably connected to the detection ring (62).

9. The high frequency round tube welding production line according to claim 1 is characterized in that: A connecting pipe (7) is provided between the protective cover (51) and the post-processing box (61), and an air filter (8) is provided on the connecting pipe (7).

10. A high-frequency round tube welding production method, according to the high-frequency round tube welding production line according to any one of claims 1 to 9, characterized in that The following steps are involved: Cutting the sheet and initially rolling it into a tube to form a blank (1); Transferring the blank (1) to the inlet direction of the conveying mechanism (3), and fixing the blank (1) at the center position of the conveying mechanism (3) so that the tube center position of the blank (1) corresponds to the inner core (52); Adjusting the position of the support block (55) so that the outer edge of the support block (55) is arranged correspondingly to the inner wall of the pipe material (2); The blank (1) enters the protective cover (51) to be heated, and the blank (1) is pressurized by the pressurizing assembly, and the blank (1) is pressurized at the position of the support block (55) to complete welding and form a tube (2); The pipe material (2) enters the post-processing box (61) for processing, and the quality of the pipe material (2) is tested by the testing component; The pipe material (2) is led out from the post-processing box (61) and stored.

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