CN114378134B

CN114378134B - Forming equipment and process of high-frequency straight welded steel pipe with intelligent frequency modulation function

Info

Publication number: CN114378134B
Application number: CN202210296120.5A
Authority: CN
Inventors: 吴秀成; 刘喜海; 李腾; 李勋
Original assignee: Hebei Huayang Steel Tube Co ltd
Current assignee: Hebei Huayang Steel Tube Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-06-03
Anticipated expiration: 2042-03-24
Also published as: CN114378134A

Abstract

The invention discloses a forming device and a forming process of a high-frequency straight welded steel pipe with an intelligent frequency modulation function, and belongs to the field of straight welded steel pipe processing. According to the forming equipment and the forming process of the high-frequency straight welded steel pipe with the intelligent frequency modulation function, the supporting arm is located on one side of the outer portion of the device main body, the connecting sleeves are mounted on the outer portion of the supporting arm, the inner pressurizing arc plates are arranged on the outer portions of the four connecting sleeves in a surrounding mode, and the high-frequency welding machine comprises an electric cabinet. The invention solves the problems of common forming effect, low working efficiency and general adaptability of steel pipes in the forming process of straight welded steel pipes in the prior art, after the inner wall position of a steel pipe raw material plate is limited by an inner pressure arc plate, the outer wall of the steel pipe raw material plate can be pressurized by a plurality of groups of side pressure ring plates, the forming work is carried out by matching the inner pressure arc plate and an inner limiting groove, the inner pressure and the outer pressure are carried out simultaneously, the position and the distance can be automatically adjusted by four groups of high-frequency welding machines, and the frequency can be intelligently adjusted according to the welding effect and the acquired data condition.

Description

Forming equipment and process of high-frequency straight welded steel pipe with intelligent frequency modulation function

Technical Field

The invention relates to the technical field of straight welded steel pipe processing, in particular to a forming device and a forming process of a high-frequency straight welded steel pipe with an intelligent frequency modulation function.

Background

The straight seam steel pipe is a steel pipe with a welding seam parallel to the longitudinal direction of the steel pipe. Generally divided into metric electric welding steel pipes, electric welding thin-wall pipes, transformer cooling oil pipes and the like. The production process of the straight welded pipe is simple, the production efficiency is high, the cost is low, the development is rapid, the high-frequency welded pipe unit adopts a steel coil as a raw material, strip steel is deformed into an open circular pipe through a series of longitudinal deformation processes, and the welded pipe is produced after the strip steel is welded by a high-frequency welding device. The high-frequency welded pipe has the advantages of low production cost, high roundness of the steel pipe, high conveying efficiency, convenient maintenance of a single-side welding seam, low residual stress and the like.

In the prior art, as disclosed in publication number CN206810969U, a U-shaped forming die for longitudinal submerged arc welded steel pipes comprises an upper die and a lower die installed in a U-shaped forming machine; the upper die consists of an upper die head and a die handle, the upper die head is connected with a lifting beam at the top of the portal frame of the U-shaped forming machine through the die handle and can be driven by the lifting beam to move up and down; the lower die comprises 2 groups of lower die components which are symmetrically arranged at two sides of the bottom of the U-shaped forming machine; each group of lower die assemblies is internally provided with a longitudinal long side roller, a side pulling device, a locking device and a horizontal conveying roller, wherein the longitudinal long side roller is used for being matched with the upper die head to realize U-shaped forming of the steel pipe; the position of the longitudinal long side roller is adjusted through a side pulling device and is locked and fixed through a locking device; the outer side of the longitudinal long side roller is provided with a horizontal conveying roller, the longitudinal long side roller is symmetrically arranged by 2 groups and consists of a plurality of sections of roller shafts, the longitudinal long side roller is in line contact with a steel plate, the roller shafts can rotate around the axis, and a steel pipe blank is pressed and formed at one time through an upper die and a lower die.

However, in the forming process of the straight welded steel pipe, the following defects are often present:

1. the steel pipe has a general forming effect and is not high in quality.

2. The welding machine needs to be adjusted manually according to the welding state of the steel pipe, and the working efficiency is affected.

3. The adaptability is general.

Aiming at the defects, it is necessary to design the forming equipment and the process of the high-frequency straight welded steel pipe with the intelligent frequency modulation function.

Disclosure of Invention

The invention aims to provide the forming equipment and the forming process of the high-frequency straight welded steel pipe with the intelligent frequency modulation function, which have the advantages of good forming effect, intelligent adjustment and wide adaptability and can solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the forming equipment of the high-frequency straight welding steel pipe with the intelligent frequency modulation function comprises two device main bodies, two supporting arms, a high-frequency welding machine and side pressure ring plates, wherein the two device main bodies are connected with each other along the length of the steel pipe, the supporting arms are positioned on one side of the outer portions of the device main bodies, connecting sleeves are arranged on the outer portions of the supporting arms, the number of the connecting sleeves is four, inner pressurizing arc plates are wound on the outer portions of the connecting sleeves, the inner pressurizing arc plates are provided with a plurality of connecting sleeves, the connecting sleeves are fixedly connected with the supporting arms through fastening bolts, connecting wires are arranged inside the supporting arms, third hydraulic cylinders and high-pressure springs are arranged between the inner pressurizing arc plates and the connecting sleeves, two ends of the third hydraulic cylinders and the high-pressure springs are fixedly connected with the inner pressurizing arc plates and the connecting sleeves respectively, and holes are formed between the inner pressurizing arc plates, the high-frequency welding machine is provided with four high-frequency welding machines which are respectively positioned at two sides of the device main body, the high-frequency welding machine comprises an electric cabinet, a frequency converter, an information acquisition module and a high-frequency current generator are arranged in the electric cabinet, the information acquisition module comprises an image acquisition module, a temperature acquisition module and a laser ranging module, an inner limiting groove is arranged in the middle of the interior of the device main body, inner movable grooves are arranged at two sides of the inner limiting groove, a side pressure ring plate is positioned in the inner movable grooves, the inner limiting groove and the inner movable grooves are integrated with the device main body into a whole, a steel pipe forming cavity is arranged above the inner limiting groove, an arc groove is arranged on the lower end face of the steel pipe forming cavity, the radian of the arc groove is the same as that of the side pressure ring plate, a supporting base is arranged below two device main bodies, and a pressure steel pipe cavity is arranged in the side pressure ring plate, and a welding port is formed at the upper end of the steel pipe pressurizing cavity.

Preferably, the side installation box is installed on two sides of the outside of the device main body, the side installation box is connected with the device main body through fixing screws, a first hydraulic cylinder is installed inside the side installation box, a heat insulation plate is installed outside the side pressing ring plate, the heat insulation plate is connected with the side pressing ring plate through fixing screws, one end of the first hydraulic cylinder is fixedly connected with the heat insulation plate through a flange plate, a water-cooling radiator is arranged at the lower end of the inside of the side installation box, the water-cooling radiator extends to two sides of the inside of the device main body and is attached to the inner wall of the device main body, circulating pumps are arranged at two ends of the water-cooling radiator, and a cooling water tank is installed at the lower end of the inside of the side installation box.

Preferably, the connection lagging is installed to the lower extreme one side of device main part, the connection lagging extends to the inside and device main part fixed connection of device main part, the internally mounted of connection lagging has the expansion plate, just the location slide rail is installed to the inside lower extreme of connection lagging, the expansion plate extends to connection lagging inside through location slide rail and connection lagging sliding connection, install the second pneumatic cylinder between connection lagging and the expansion plate, the both ends of second pneumatic cylinder respectively with connection lagging and expansion plate fixed connection.

Preferably, the connecting seat is installed to the upper end of expansion plate, the digging arm is installed to the lower extreme of support arm, the lower extreme of digging arm extends to inside and the connecting seat of connecting seat and rotates through the pivot to be connected, the support folded plate is installed to one side of connecting seat, support folded plate and expansion plate welded connection, just spacing dish is installed to one side of digging arm.

Preferably, the high-frequency welding machine further comprises a welding head, an inductance coil protecting sleeve, an electric motor, a first connecting arm, a second connecting arm and a third connecting arm, wherein the inductance coil protecting sleeve is positioned at the upper end of the welding head, an inductance coil is arranged inside the inductance coil protecting sleeve, the third connecting arm is positioned on one side of the electric cabinet, the second connecting arm is positioned inside the third connecting arm, the first connecting arm is positioned outside the lower end of the second connecting arm, the electric motor is positioned at the lower end of the first connecting arm, the first connecting arm is in transmission connection with the electric motor through a motor shaft, an electric motor is arranged between the second connecting arm and the first connecting arm, the electric motor drives the second connecting arm to rotate through a motor shaft, the second connecting arm is fixedly connected with the third connecting arm, and an electric cylinder is arranged between the third connecting arm and the electric cabinet, and two ends of the electric cylinder are respectively movably connected with the third connecting arm and the electric cabinet through connecting shafts.

Preferably, the movable base is installed to the lower extreme of motor, the lower extreme of moving the base is provided with linear guide, linear guide sets up structure as an organic whole with the movable base, the supporting seat is all installed to the upper end both sides of device main part, the up end of supporting seat is provided with the guide rail groove, the movable base passes through linear guide and guide rail groove and supporting seat sliding connection. Preferably, the gear install bin is installed to the middle upper end of supporting seat, the internally mounted of gear install bin has speed governing gear group, servo motor is installed to speed governing gear group's below, servo motor is connected with the transmission of speed governing gear group, threaded lead screw is installed to upper end one side of speed governing gear group, the bearing frame is all installed at the both ends of supporting seat, threaded lead screw's one end is passed through the bearing frame and is connected with the supporting seat rotation, the inside of removing the base is provided with the screw hole, threaded lead screw's the other end passes the screw hole and removes base threaded connection, the sliding block is installed to the below of removing the base, the movable pulley is all installed to the upper end and the lower extreme of sliding block, movable pulley and supporting seat sliding connection.

The process of the forming equipment of the high-frequency straight welded steel pipe with the intelligent frequency modulation function comprises the following steps:

the method comprises the following steps: according to different requirements, two groups of device main bodies can be connected, and after the two groups of device main bodies are connected, straight seam steel pipe welding work with large length is carried out;

step two: placing a steel pipe raw material plate to be molded in a steel pipe molding cavity, and driving a telescopic plate to move through a second hydraulic cylinder, so that the telescopic plate drives a supporting arm and an inner pressurizing arc plate to adjust the position, and the movable arm can drive the supporting arm to swing above a device main body to move the inner pressurizing arc plate to the upper end of the steel pipe raw material plate;

step three: the first hydraulic cylinder stretches out and draws back to drive the heat insulation plate and the side pressure ring plate to move, the outer part of the steel pipe is shaped through the side pressure ring plate, the inner pressure arc plate is driven to move to extrude the inner wall of the steel pipe raw material plate through stretching out and drawing back of the third hydraulic cylinder, and the inner shaping work is carried out by matching with the side pressure ring plate;

step four: the servo motor can drive the speed regulating gear sets to rotate, the plurality of speed regulating gear sets are linked to drive the threaded lead screw to rotate, the movable base can be driven to transversely move at the upper end of the supporting seat when the threaded lead screw rotates, the first connecting arm is driven to rotate by the motor, the second connecting arm is driven to move above the first connecting arm by the electric motor, and the electric cylinder can stretch and adjust the angle positions of the electric cabinet, the inductance coil protecting sleeve and the welding head;

step five: gather the information between high frequency welding machine and the steel pipe raw materials through image acquisition module, temperature acquisition module and laser rangefinder module, four high frequency welding machines of group can adjust position, distance by oneself, according to the welding effect and gather the data condition, and high frequency current generator is opened to intelligent adjustment frequency, connects the back with steel pipe raw materials board both sides, through welding mouthful transversal joint welding shaping.

Compared with the prior art, the invention has the following beneficial effects:

1. the existing steel pipe forming equipment needs to move for many times when processing a long steel pipe, which affects the processing effect, but the invention can connect two groups of device bodies according to different requirements, and after the connection, the welding work of the long straight seam steel pipe can be carried out, the structure is stable, the adjustment is convenient, in the prior art, the forming process needs to process and form the heated steel pipe coil by a pipe rolling machine, the forming effect is poor, but in the processing of the invention, the supporting arm can adjust the position according to the working state, the supporting arm can move to the center in the device body, the steel pipe raw material plate which is just loaded is pressurized and limited, after the position of the inner wall of the steel pipe raw material plate is limited by the inner pressurizing arc plate, the outer wall of the steel pipe raw material plate can be pressurized by a plurality of groups of side pressure ring plates, the forming work is carried out by matching the inner pressurizing arc plate and the inner limiting groove, the inner pressure and the outer pressure are carried out simultaneously, the processing quality can be improved by the aid of the multiple groups of pressurizing devices, information between the high-frequency welding machines and the steel pipe raw materials can be acquired by the aid of the image acquisition module, the temperature acquisition module and the laser ranging module, the positions and distances of the four groups of high-frequency welding machines can be automatically adjusted, frequency can be intelligently adjusted according to welding effects and acquired data conditions, and adaptability is high.

2. In the prior art, the whole position of a steel pipe cannot be kept stable during forming, a steel pipe raw material plate to be formed is placed inside a steel pipe forming cavity, when welding forming work is carried out, an arc groove has enough support for the steel pipe raw material plate, a plurality of groups of side pressure ring plates and inner pressure arc plates are matched for efficient forming, a heat insulation plate and the side pressure ring plates can be driven to move through the extension and contraction of a first hydraulic cylinder, the outer part of the steel pipe is shaped through the side pressure ring plates, the structure is simple, the operation is convenient, the inner pressure arc plates are driven to move and extrude the inner wall of the steel pipe raw material plate through the extension and contraction of a third hydraulic cylinder, and the shaping work is carried out through the side pressure ring plates, in the prior art, a straight seam welding machine is small in movable range and cannot adapt to steel pipes with different thicknesses, a speed regulating gear set can be driven to rotate through a servo motor, and a plurality of speed regulating gear sets are linked, drive the screw thread lead screw and rotate, when the screw thread lead screw rotates, can drive and remove the base at supporting seat upper end lateral shifting, convenient adjustment, moreover, the steam generator is simple in structure, high durability and convenient use, and it is at the removal in-process to remove the base, accessible movable pulley keeps balanced, thereby ensure the position accuracy of soldered connection, improve welding quality, drive first linking arm through the motor and rotate, electric motor drives the activity of second linking arm in first linking arm top, the flexible adjustable electric cabinet of electronic jar, the angle position of inductance coils lag and soldered connection, thereby realize multi-angle work, conveniently carry out precision weld machining work, work accommodation is big, high quality.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is an overall front view from another angle of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is an overall front view of the linkage of the two sets of apparatus bodies of the present invention;

FIG. 5 is an overall front view of two sets of linkage device bodies according to another aspect of the present invention;

FIG. 6 is a front view of the linkage of the two sets of device bodies of the present invention;

FIG. 7 is an overall front view of the high frequency welder of the present invention;

FIG. 8 is an overall front view of the support arm of the present invention;

FIG. 9 is an internal structural view of the apparatus main body of the present invention;

FIG. 10 is an overall front view of the side pressure ring plate of the present invention;

FIG. 11 is a partial internal structure view of the support base of the present invention;

fig. 12 is an internal structure view of the electric cabinet of the present invention.

In the figure: 1. a device main body; 101. an inner limiting groove; 102. an inner movable groove; 103. a support base; 2. a side mounting box; 201. a first hydraulic cylinder; 3. connecting the sleeve plate; 301. a retractable plate; 302. supporting the folded plate; 303. a connecting seat; 304. a second hydraulic cylinder; 305. positioning the slide rail; 4. a support arm; 401. an inner pressurized arc plate; 402. a limiting disc; 403. a movable arm; 404. a connecting sleeve; 405. a third hydraulic cylinder; 406. a high pressure spring; 5. a high-frequency welding machine; 501. welding a head; 502. an inductance coil protecting jacket; 503. an electric cabinet; 5031. a frequency converter; 5032. an information acquisition module; 5033. a high frequency current generator; 504. moving the base; 5041. a linear guide rail; 5042. a threaded hole; 5043. a slider; 5044. a sliding wheel; 505. an electric motor; 506. a first connecting arm; 507. an electric motor; 508. a second connecting arm; 509. a third connecting arm; 510. an electric cylinder; 6. a supporting seat; 601. a guide rail groove; 602. a threaded lead screw; 603. a bearing seat; 604. a gear mounting box; 605. a servo motor; 606. a speed-regulating gear set; 7. forming a cavity by using a steel pipe; 8. pressing a ring plate laterally; 801. a steel pipe pressurization cavity; 802. a heat insulation plate; 803. and (7) welding the port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-12, a forming apparatus for high frequency straight welded steel pipe with intelligent frequency modulation function includes two apparatus main bodies 1, two support arms 4, a high frequency welding machine 5 and a side pressure ring plate 8, the two apparatus main bodies 1 are connected with each other along the length of the steel pipe, two apparatus main bodies 1 can be connected according to different requirements, after connection, the welding work of the steel pipe with large length can be performed, the structure is stable, and the adjustment is convenient, the support arm 4 is located at one side of the outside of the apparatus main body 1, the support arm 4 can adjust the position according to the working state, the support arm 4 can be moved to the center of the inside of the apparatus main body 1, the steel pipe raw material plate just loaded is pressed and limited, and the outside of the support arm 4 is provided with four connecting sleeves 404, the outside of the four connecting sleeves 404 is surrounded by inner pressure arc plates 401, the inner pressure arc plates 401 are provided with a plurality of inner pressure arc plates 401, the inner pressurizing arc plates 401 can pressurize on the inner surface of the steel pipe raw material plate to press the inner surface of the steel pipe raw material plate into a circle, a forming process is carried out, the connecting sleeve 404 is fixedly connected with the supporting arm 4 through a fastening bolt, a connecting lead is arranged inside the supporting arm 4, a third hydraulic cylinder 405 and a high-pressure spring 406 are arranged between the inner pressurizing arc plates 401 and the connecting sleeve 404, two ends of the third hydraulic cylinder 405 and the high-pressure spring 406 are respectively and fixedly connected with the inner pressurizing arc plates 401 and the connecting sleeve 404, the inner pressurizing arc plates 401 are driven to move to extrude the inner wall of the steel pipe raw material plate through the extension and contraction of the third hydraulic cylinder 405, the shaping work is carried out by matching with the side pressure ring plate 8, holes are arranged among the inner pressurizing arc plates 401, when the inner pressurizing arc plates 401 are moved by stress, a certain distance can be kept, the stability is improved by matching with the high-pressure spring 406, and the strength of the steel pipe is adapted, four high-frequency welding machines 5 are arranged, the four high-frequency welding machines 5 are respectively positioned at two sides of the device main body 1, each high-frequency welding machine 5 comprises an electric cabinet 503, a frequency converter 5031, an information acquisition module 5032 and a high-frequency current generator 5033 are arranged in the electric cabinet 503, each information acquisition module 5032 comprises an image acquisition module, a temperature acquisition module and a laser ranging module, information between the high-frequency welding machine 5 and a steel pipe raw material is acquired through the image acquisition module, the temperature acquisition module and the laser ranging module, the positions and distances of the four groups of high-frequency welding machines 5 can be automatically adjusted, the frequency is intelligently adjusted according to the welding effect and the acquired data condition, an inner limiting groove 101 is arranged in the middle of the device main body 1, inner movable grooves 102 are respectively arranged at two sides of the inner limiting groove 101, a side pressure ring plate 8 is positioned in the inner movable groove 102, after the inner wall position of the steel pipe raw material plate is limited through an inner pressure arc plate 401, the outer wall of a steel pipe raw material plate can be pressurized through a plurality of groups of side pressure ring plates 8, the outer wall is matched with an inner pressurizing arc plate 401 and an inner limiting groove 101 to carry out forming work, the inner limiting groove 101 and an inner movable groove 102 are both arranged into an integral structure with the device main body 1, a steel pipe forming cavity 7 is arranged above the inner limiting groove 101, an arc groove is arranged on the lower end surface of the steel pipe forming cavity 7, the radian of the arc groove is the same as that of the side pressure ring plates 8, the steel pipe raw material plate to be formed is placed in the steel pipe forming cavity 7 to carry out welding forming work, the arc groove has enough support performance on the steel pipe raw material plate, the steel pipe raw material plate is efficiently formed by matching with the plurality of groups of side pressure ring plates 8 and the inner pressurizing arc plates 401, a support base 103 is arranged below the two device main bodies 1, the steel pipe pressurizing cavity 801 is arranged in the side pressure ring plates 8, a welding port 803 is arranged at the upper end of the steel pipe pressurizing cavity 801, the steel pipe raw material plate is positioned in the steel pipe pressurizing cavity 801, the two sets of side pressure ring plates 8 are subjected to extrusion molding, and after the two sides of the steel pipe raw material plate are connected by the welding port 803, the steel pipe raw material plate is formed by straight welding.

Furthermore, the two outer sides of the main body 1 of the device are both provided with the side installation boxes 2, the side installation boxes 2 are connected with the main body 1 of the device through fixing screws, the inner part of the side installation box 2 is provided with the first hydraulic cylinder 201, the outer part of the side pressing ring plate 8 is provided with the heat insulation plate 802, the heat insulation plate 802 is connected with the side pressing ring plate 8 through fixing screws, one end of the first hydraulic cylinder 201 is fixedly connected with the heat insulation plate 802 through a flange plate, the first hydraulic cylinder 201 stretches and retracts to drive the heat insulation plate 802 and the side pressing ring plate 8 to move, the outer part of the steel pipe is shaped through the side pressing ring plate 8, the structure is simple, the operation is convenient, the lower inner end of the side installation box 2 is provided with the water-cooling radiator, the water-cooling radiator extends to the two inner sides of the main body 1 of the device to be attached to the inner wall of the main body 1 of the device, both ends of the water-cooling radiator are provided with circulating pumps, and the lower inner end of the side installation box 2 is provided with the cooling water tank, through the circulating pump, with the inside cooling water conservancy diversion of coolant tank to liquid cooling ware, through liquid cooling ware with the inside heat reduction of device main part 1 and side installation case 2, can accomplish the back at weldment work, carry out cooling to the steel pipe rapidly, conveniently carry out the unloading.

Further, connect lagging 3 is installed to the lower extreme one side of device main part 1, connect lagging 3 to extend to 1 inside and device main part 1 fixed connection of device main part, the internally mounted of connecting lagging 3 has expansion plate 301, and the inside lower extreme of connecting lagging 3 installs location slide rail 305, expansion plate 301 extends to connecting inside through location slide rail 305 and connecting lagging 3 sliding connection of lagging 3, install second pneumatic cylinder 304 between connecting lagging 3 and the expansion plate 301, the both ends of second pneumatic cylinder 304 respectively with connecting lagging 3 and expansion plate 301 fixed connection, can drive expansion plate 301 through second pneumatic cylinder 304 and remove, make expansion plate 301 drive support arm 4 and interior pressurized arc board 401 adjustment position, adapt to the work demand.

Further, connecting seat 303 is installed to the upper end of expansion plate 301, digging arm 403 is installed to the lower extreme of support arm 4, digging arm 403's lower extreme extends to inside and connecting seat 303 of connecting seat 303 and rotates through the pivot to be connected, digging arm 403 can drive support arm 4 and sway in device main part 1 top, can go up unloading work, support folded plate 302 is installed to one side of connecting seat 303, support folded plate 302 and expansion plate 301 welded connection, and spacing dish 402 is installed to one side of digging arm 403, support arm 4 is after rotating, can make self and device main part 1 remain stable through spacing dish 402 and support folded plate 302 respectively, improve the effect that the steel pipe was stereotyped.

Further, the high-frequency welding machine 5 further comprises a welding head 501, an inductance coil protecting sleeve 502, an electric motor 505, a first connecting arm 506, a second connecting arm 508 and a third connecting arm 509, wherein the inductance coil protecting sleeve 502 is located at the upper end of the welding head 501, an inductance coil is installed inside the inductance coil protecting sleeve 502, the third connecting arm 509 is located on one side of the electric cabinet 503, the second connecting arm 508 is located inside the third connecting arm 509, the first connecting arm 506 is located outside the lower end of the second connecting arm 508, the electric motor 505 is located at the lower end of the first connecting arm 506, the first connecting arm 506 is in transmission connection with the electric motor 505 through a motor shaft, an electric motor 507 is installed between the second connecting arm 508 and the first connecting arm 506, the electric motor 507 drives the second connecting arm 508 to rotate through the motor shaft, the second connecting arm 508 is fixedly connected with the third connecting arm 509, an electric cylinder 510 is installed between the third connecting arm 509 and the electric cabinet 503, the both ends of electronic jar 510 all through the connecting axle respectively with third linking arm 509 and electric cabinet 503 swing joint, drive first linking arm 506 through motor 505 and rotate, electric motor 507 drives second linking arm 508 and moves about in first linking arm 506 top, the flexible adjustable electric cabinet 503 of electronic jar 510, induction coil lag 502 and soldered connection 501's angular position to realize multi-angle work, conveniently carry out precision weld processing work, work accommodation is big, the high quality.

Further, the removal base 504 is installed to the lower extreme of motor 505, the lower extreme of removing base 504 is provided with linear guide 5041, linear guide 5041 sets up structure as an organic whole with removal base 504, supporting seat 6 is all installed to the upper end both sides of device main part 1, the up end of supporting seat 6 is provided with guide rail groove 601, remove base 504 through linear guide 5041 and guide rail groove 601 and supporting seat 6 sliding connection, can adjust the position of removing base 504, thereby adjustable a plurality of soldered connections 501's transverse position, thereby realize multi-angle welding processing, be convenient for adapt to different operational environment.

Further, a gear installation box 604 is installed at the upper end of the middle of the support seat 6, a speed adjusting gear set 606 is installed inside the gear installation box 604, a servo motor 605 is installed below the speed adjusting gear set 606, the servo motor 605 is in transmission connection with the speed adjusting gear set 606, a threaded lead screw 602 is installed on one side of the upper end of the speed adjusting gear set 606, bearing seats 603 are installed at both ends of the support seat 6, one end of the threaded lead screw 602 is rotatably connected with the support seat 6 through the bearing seat 603, a threaded hole 5042 is formed inside the movable base 504, the other end of the threaded lead screw 602 penetrates through the threaded hole 5042 to be in threaded connection with the movable base 504, a sliding block 5043 is installed below the movable base 504, sliding wheels 5044 are installed at both the upper end and the lower end of the sliding block 5043, the sliding wheels 5044 are in sliding connection with the support seat 6, the speed adjusting gear set 606 can be driven by the servo motor 605 to rotate, and the plurality of speed adjusting gear sets 606 are linked, drive threaded lead screw 602 and rotate, when threaded lead screw 602 rotated, can drive mobile base 504 at the lateral shifting of supporting seat 6 upper end, convenient adjustment, simple structure, convenient to use, and mobile base 504 is at the removal in-process, and accessible sliding wheel 5044 keeps balanced to ensure soldered connection 501's position accuracy, improve welding quality.

the method comprises the following steps: according to different requirements, the two groups of device main bodies 1 can be connected, and after the connection, straight seam steel pipe welding work with large length is carried out, so that the structure is stable and convenient to adjust;

step two: placing a steel pipe raw material plate to be molded inside a steel pipe molding cavity 7, driving the expansion plate 301 to move through the second hydraulic cylinder 304, enabling the expansion plate 301 to drive the supporting arm 4 and the inner pressurizing arc plate 401 to adjust positions, driving the supporting arm 4 to swing above the device main body 1 through the movable arm 403, and moving the inner pressurizing arc plate 401 to the upper end of the steel pipe raw material plate to meet working requirements;

step three: the first hydraulic cylinder 201 is telescopic to drive the heat insulation plate 802 and the side pressing ring plate 8 to move, the outer part of the steel pipe is shaped through the side pressing ring plate 8, and the inner pressing arc plate 401 is driven to move and extrude the inner wall of the steel pipe raw material plate through the telescopic action of the third hydraulic cylinder 405 to match with the side pressing ring plate 8 to perform inner shaping work;

step four: the speed-adjusting gear sets 606 can be driven to rotate through the servo motor 605, the plurality of speed-adjusting gear sets 606 are linked to drive the threaded lead screw 602 to rotate, when the threaded lead screw 602 rotates, the movable base 504 can be driven to transversely move at the upper end of the supporting seat 6, the first connecting arm 506 is driven to rotate through the motor 505, the electric motor 507 drives the second connecting arm 508 to move above the first connecting arm 506, the electric cylinder 510 can stretch and contract to adjust the angular positions of the electric control box 503, the induction coil protecting sleeve 502 and the welding head 501, and in the moving process of the movable base 504, balance can be kept through the sliding wheel 5044, so that the position accuracy of the welding head 501 is ensured, and the welding quality is improved;

step five: the information between the high-frequency welding machine 5 and the steel pipe raw material is collected through the image collection module, the temperature collection module and the laser ranging module, the positions and the distances of the four groups of high-frequency welding machines 5 can be automatically adjusted, the frequency is intelligently adjusted according to the welding effect and the collected data condition, the high-frequency current generator 5033 is opened, the two sides of the steel pipe raw material plate are connected, and then the steel pipe raw material plate is welded and formed through the welding port 803 in a straight welding mode, and the adaptability is high.

To sum up, the forming device and process of the high-frequency straight welded steel pipe with intelligent frequency modulation function can connect two groups of device main bodies 1 according to different requirements, after connection, the long straight welded steel pipe welding work is carried out, the structure is stable, the adjustment is convenient, the steel pipe raw material plate to be formed is placed in the steel pipe forming cavity 7, the expansion plate 301 can be driven to move through the second hydraulic cylinder 304, the expansion plate 301 drives the supporting arm 4 and the inner pressurizing arc plate 401 to adjust the position, the movable arm 403 can drive the supporting arm 4 to swing above the device main body 1, the inner pressurizing arc plate 401 is moved to the upper end of the steel pipe raw material plate to adapt to the working requirements, the first hydraulic cylinder 201 can expand and contract to drive the heat insulation plate 802 and the side pressure ring plate 8 to move, the shaping work is carried out on the outside of the steel pipe through the side pressure ring plate 8, the inner pressurizing arc plate 401 is driven to move to extrude the inner wall of the steel pipe raw material plate through the expansion of the third hydraulic cylinder 405, the internal shaping work is carried out by matching with a side pressure ring plate 8, a speed regulating gear set 606 can be driven to rotate through a servo motor 605, a plurality of speed regulating gear sets 606 are linked to drive a threaded lead screw 602 to rotate, when the threaded lead screw 602 rotates, a movable base 504 can be driven to transversely move at the upper end of a supporting seat 6, a first connecting arm 506 is driven to rotate through a motor 505, an electric motor 507 drives a second connecting arm 508 to move above the first connecting arm 506, an electric cylinder 510 can stretch and contract to adjust the angle positions of an electric cabinet 503, an inductance coil protecting sleeve 502 and a welding head 501, the transverse positions of a plurality of welding heads 501 are adjusted, so that multi-angle welding processing is realized, the multi-angle welding is convenient to adapt to different working environments, in the moving process of the movable base 504, the balance can be kept through a sliding wheel 5044, so as to ensure the position accuracy of the welding heads 501 and improve the welding quality, information between a high-frequency welding machine 5 and a steel pipe raw material is collected through an image collection module, a temperature collection module and a laser ranging module, the four groups of high-frequency welding machines 5 can automatically adjust the position and distance, intelligently adjust the frequency according to the welding effect and the acquired data condition, open the high-frequency current generator 5033, connect the two sides of the steel pipe raw material plate, weld and form through the welding port 803 straight seam, guide the cooling water in the cooling water tank to the water-cooling radiator through the circulating pump, reduce the heat in the device main body 1 and the side installation box 2 through the water-cooling radiator, rapidly cool the steel pipe after the welding work is finished, and facilitate the blanking.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Former of high frequency straight seam welded steel pipe with intelligence frequency modulation function, including device main part (1), support arm (4), high frequency welding machine (5) and side pressure crown plate (8), its characterized in that: the device is characterized in that the device main body (1) is provided with two, two the device main body (1) is connected with each other along the length of a steel pipe, the supporting arm (4) is positioned at one side of the outside of the device main body (1), the outside of the supporting arm (4) is provided with four connecting sleeves (404), four connecting sleeves (404) are externally provided with inner pressurizing arc plates (401) in a surrounding manner, the inner pressurizing arc plates (401) are provided with a plurality of connecting sleeves (404), the connecting sleeves (404) are fixedly connected with the supporting arm (4) through fastening bolts, connecting wires are arranged inside the supporting arm (4), a third hydraulic cylinder (405) and a high-pressure spring (406) are arranged between the inner pressurizing arc plates (401) and the connecting sleeves (404), two ends of the third hydraulic cylinder (405) and the high-pressure spring (406) are respectively fixedly connected with the inner pressurizing arc plates (401) and the connecting sleeves (404), holes are formed among the plurality of inner pressurizing arc plates (401), four high-frequency welding machines (5) are arranged, the four high-frequency welding machines (5) are respectively positioned at two sides of the device main body (1), each high-frequency welding machine (5) comprises an electric cabinet (503), a frequency converter (5031), an information acquisition module (5032) and a high-frequency current generator (5033) are arranged in each electric cabinet (503), each information acquisition module (5032) comprises an image acquisition module, a temperature acquisition module and a laser ranging module, an inner limiting groove (101) is arranged in the middle of the inside of the device main body (1), inner movable grooves (102) are respectively arranged at two sides of each inner limiting groove (101), the side pressure ring plates (8) are positioned in the inner movable grooves (102), and the inner limiting grooves (101) and the inner movable grooves (102) are respectively arranged with the device main body (1) into an integral structure, the top of interior spacing groove (101) is provided with steel pipe shaping chamber (7), the lower terminal surface in steel pipe shaping chamber (7) is provided with the circular arc groove, and the radian in circular arc groove is the same with the radian of side pressure crown plate (8), two support base (103) are installed to the below of device main part (1), the inside of side pressure crown plate (8) is provided with steel pipe pressurization chamber (801), the upper end in steel pipe pressurization chamber (801) is provided with welding mouth (803).

2. The apparatus for forming a high-frequency straight welded steel pipe with smart frequency modulation according to claim 1, wherein: side install bin (2) are all installed to the outside both sides of device main part (1), side install bin (2) pass through fixed screw with device main part (1) and are connected, the internally mounted of side install bin (2) has first pneumatic cylinder (201), the externally mounted of side pressure crown plate (8) has heat insulating board (802), heat insulating board (802) are connected with side pressure crown plate (8) through fixed screw, ring flange and heat insulating board (802) fixed connection are passed through to the one end of first pneumatic cylinder (201), the inside lower extreme of side install bin (2) is provided with water-cooling radiator, and water-cooling radiator extends to the inside both sides of device main part (1) and device main part (1) inner wall laminating, and water-cooling radiator's both ends all are provided with the circulating pump, just coolant tank is installed to the inside lower extreme of side install bin (2).

3. The apparatus for forming a high-frequency straight welded steel pipe with smart frequency tuning function according to claim 2, wherein: connect lagging (3) is installed to lower extreme one side of device main part (1), connect lagging (3) to extend to device main part (1) inside and device main part (1) fixed connection, the internally mounted of connecting lagging (3) has expansion plate (301), just location slide rail (305) are installed to the inside lower extreme of connecting lagging (3), expansion plate (301) extend to connecting lagging (3) inside through location slide rail (305) and connecting lagging (3) sliding connection, install second hydraulic cylinder (304) between connecting lagging (3) and expansion plate (301), the both ends of second hydraulic cylinder (304) respectively with connect lagging (3) and expansion plate (301) fixed connection.

4. The apparatus for forming a high-frequency straight welded steel pipe with smart frequency tuning function according to claim 3, wherein: connecting seat (303) is installed to the upper end of expansion plate (301), digging arm (403) is installed to the lower extreme of support arm (4), the lower extreme of digging arm (403) extends to connecting seat (303) inside and is connected through the pivot rotation with connecting seat (303), support folded plate (302) is installed to one side of connecting seat (303), support folded plate (302) and expansion plate (301) welded connection, just spacing dish (402) is installed to one side of digging arm (403).

5. The apparatus for forming a high-frequency straight welded steel pipe with smart frequency modulation according to claim 4, wherein: the high-frequency welding machine (5) further comprises a welding head (501), an inductance coil protecting sleeve (502), an electric motor (505), a first connecting arm (506), a second connecting arm (508) and a third connecting arm (509), wherein the inductance coil protecting sleeve (502) is positioned at the upper end of the welding head (501), the inductance coil is arranged inside the inductance coil protecting sleeve (502), the third connecting arm (509) is positioned on one side of the electric cabinet (503), the second connecting arm (508) is positioned inside the third connecting arm (509), the first connecting arm (506) is positioned outside the lower end of the second connecting arm (508), the electric motor (505) is positioned at the lower end of the first connecting arm (506), the first connecting arm (506) is in transmission connection with the electric motor (505) through a motor shaft, and an electric motor (507) is arranged between the second connecting arm (508) and the first connecting arm (506), electric motor (507) passes through the motor shaft and drives second linking arm (508) and rotate, second linking arm (508) and third linking arm (509) fixed connection, install electronic jar (510) between third linking arm (509) and electric cabinet (503), the both ends of electronic jar (510) all through the connecting axle respectively with third linking arm (509) and electric cabinet (503) swing joint.

6. The apparatus for forming a high-frequency straight welded steel pipe with smart frequency tuning function according to claim 5, wherein: remove base (504) is installed to the lower extreme of motor (505), the lower extreme of removing base (504) is provided with linear guide (5041), linear guide (5041) set up structure as an organic whole with removal base (504), supporting seat (6) are all installed to the upper end both sides of device main part (1), the up end of supporting seat (6) is provided with guide rail groove (601), remove base (504) through linear guide (5041) and guide rail groove (601) and supporting seat (6) sliding connection.

7. The apparatus for forming a high-frequency straight welded steel pipe with smart frequency tuning function according to claim 6, wherein: a gear installation box (604) is installed at the upper end of the middle of the supporting seat (6), a speed regulating gear set (606) is installed inside the gear installation box (604), a servo motor (605) is installed below the speed regulating gear set (606), the servo motor (605) is in transmission connection with the speed regulating gear set (606), a threaded lead screw (602) is installed on one side of the upper end of the speed regulating gear set (606), bearing seats (603) are installed at two ends of the supporting seat (6), one end of the threaded lead screw (602) is in rotation connection with the supporting seat (6) through the bearing seats (603), a threaded hole (5042) is formed inside the movable base (504), the other end of the threaded lead screw (602) penetrates through the threaded hole (5042) to be in threaded connection with the movable base (504), a sliding block (5043) is installed below the movable base (504), and sliding wheels (5044) are installed at the upper end and the lower end of the sliding block (5043), the sliding wheel (5044) is connected with the supporting seat (6) in a sliding mode.

8. The process of the high-frequency straight welded steel pipe forming equipment with the smart frequency modulation function according to claim 7, characterized by comprising the following steps:

the method comprises the following steps: according to different requirements, two groups of device main bodies (1) can be connected, and after the connection, straight seam steel pipe welding work with large length is carried out;

step two: placing a steel pipe raw material plate to be molded in a steel pipe molding cavity (7), driving a telescopic plate (301) to move through a second hydraulic cylinder (304), driving a supporting arm (4) and an inner pressurizing arc plate (401) to adjust positions through the telescopic plate (301), driving the supporting arm (4) to swing above a device main body (1) through a movable arm (403), and moving the inner pressurizing arc plate (401) to the upper end of the steel pipe raw material plate;

step three: the first hydraulic cylinder (201) stretches out and draws back to drive the heat insulation plate (802) and the side pressure ring plate (8) to move, the outer part of the steel pipe is shaped through the side pressure ring plate (8), and the inner pressure arc plate (401) is driven to move to extrude the inner wall of the steel pipe raw material plate through the stretching of the third hydraulic cylinder (405) to match with the side pressure ring plate (8) to carry out inner shaping work;

step four: the servo motor (605) can drive the speed regulating gear set (606) to rotate, the plurality of speed regulating gear sets (606) are linked to drive the threaded lead screw (602) to rotate, when the threaded lead screw (602) rotates, the movable base (504) can be driven to transversely move at the upper end of the supporting seat (6), the motor (505) drives the first connecting arm (506) to rotate, the electric motor (507) drives the second connecting arm (508) to move above the first connecting arm (506), and the electric cylinder (510) can stretch and adjust the angle positions of the electric control box (503), the inductance coil protecting sleeve (502) and the welding head (501);

step five: information between the high-frequency welding machines (5) and the steel pipe raw materials is collected through the image collecting module, the temperature collecting module and the laser ranging module, the positions and the distances of the four groups of high-frequency welding machines (5) can be automatically adjusted, the frequency is intelligently adjusted according to the welding effect and the condition of collected data, the high-frequency current generator (5033) is opened, and after two sides of a steel pipe raw material plate are connected, the steel pipe raw material plate is welded and formed through a welding port (803) in a straight welding mode.