A high frequency welding device for processing H-shaped steel and its welding process

Abstract

The present invention relates to the field of welding technology, and discloses a high-frequency welding device for processing H-shaped steel and its welding process, including: a mounting frame; a correction component for correcting the H-shaped steel before welding; a cleaning component for cleaning impurities on the surface of the H-shaped steel before welding; a lower pressure roller is slidably mounted on the mounting frame, and two welding machines are installed on the mounting frame, and a welding head is provided on the welding machine. Through the setting of the correction component, the two side correction rollers and the lower correction roller correct and shape the moving H-shaped steel through extrusion, so that the H-shaped steel is corrected before welding, avoiding the occurrence of welds due to loose connection of the welding position caused by deformation, and improving the welding quality of the H-shaped steel. Through the setting of the No. 1 adjusting screw and the No. 2 adjusting screw, the staff can adjust the two side correction rollers in four directions to meet the correction operation of H-shaped steels of different thicknesses.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a high-frequency welding device for processing H-shaped steel and a welding process thereof. Background Art

[0002] High-frequency welded H-beam is a kind of construction steel that uses high-frequency current to melt and weld metal locally. Its cross-sectional shape is the same as the English letter "H", hence the name. The high-frequency welding process is mainly based on the "surface effect" and "proximity effect" generated when high-frequency current passes through the conductor. The surface effect means that when high-frequency current flows in the conductor, the current density is larger near the surface of the conductor, and gradually decreases inside the conductor. The proximity effect means that when two conductors are close, the high-frequency current will be more concentrated in the near-surface area adjacent to the two conductors. Using these two effects, high-frequency welding can concentrate the current on the welding part of the H-beam, causing it to melt locally and achieve welding.

[0003] However, the prior art has the following problems:

[0004] 1. In the prior art, when high-frequency welding equipment is used to weld H-shaped steel, local deformation may occur in the process of splicing the steel plates into H-shaped steel. The local deformation may cause the connection parts between the steel plates constituting the H-shaped steel to be loose, thereby causing a larger weld to be produced during the welding process, affecting the product quality of the H-shaped steel.

[0005] 2. In the prior art, when high-frequency welding equipment is used to weld H-shaped steel, impurities may adhere to the surface of the steel plate during the previous process, and impurities appear at the joints of the steel plates, which will directly affect the quality of the weld during the welding process. Summary of the invention

[0006] The purpose of the present invention is to provide a high-frequency welding device and a welding process for processing H-shaped steel in order to solve the above-mentioned problems and overcome the defects of the prior art, as described in detail below.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides a high-frequency welding device for processing H-shaped steel, comprising: a mounting frame; a correction component, used for correcting the H-shaped steel before welding; a cleaning component, used for cleaning impurities on the surface of the H-shaped steel before welding; a lower pressure roller is slidably mounted on the mounting frame, a hydraulic cylinder is arranged on the mounting frame, the output end of the hydraulic cylinder is connected to the lower pressure roller, two welding machines are installed on the mounting frame, a welding head is arranged on the welding machine, two supporting rollers are installed on the mounting frame, two mounting seats are connected to one side of the mounting frame, the two mounting seats are arranged in a mirror image, the correction component is arranged on the mounting seat, and the cleaning component is arranged on the mounting seat;

[0009] The correction assembly includes a motor, which is installed on the outside of one of the mounting seats. A rotating shaft is rotatably installed between the two mounting seats. The output end of the motor is connected to one end of the rotating shaft. A lower correction roller is connected to the rotating shaft. A mounting block is slidably installed on the mounting seat. A mounting cover is slidably installed on the mounting block. A side correction roller is rotatably installed on the mounting cover. The two side correction rollers are mirror-imaged and both are located above the lower correction roller.

[0010] Preferably, a plurality of support wheels are arranged inside the mounting cover, and the plurality of support wheels are in contact with the side correction rollers. A No. 1 adjusting screw is rotatably mounted on the inner wall of the mounting block, and the No. 1 adjusting screw is threadedly connected to the inner wall of the mounting cover.

[0011] Preferably, two No. 2 adjusting screws are rotatably mounted on the mounting seat, and both of the two No. 2 adjusting screws are threadedly connected to the mounting block, and hand wheels are respectively provided on the No. 1 adjusting screw and the two No. 2 adjusting screws.

[0012] Preferably, the correction assembly also includes two movable blocks, which are respectively slidably mounted on the inner sides of two mounting seats, and grinding blocks are mounted on the movable blocks through springs. The two grinding blocks are mirror-imaged, and a sliding frame is slidably mounted on the inner side of the mounting seat. Two cams are connected to the outer wall of the rotating shaft, and a connecting rod is hinged on the sliding frame.

[0013] Preferably, the two cams are respectively located at the two ends of the lower correction roller, the sliding frame is provided with a square groove, the square grooves of the two sliding frames are respectively in contact with the two cams, and one end of the connecting rod away from the sliding frame is hinged to the movable block.

[0014] Preferably, the cleaning assembly includes a base plate, which is installed between two mounting seats, a water tank is installed on the base plate, the top of the water tank is connected to a recovery box, the top of the recovery box is rotatably installed with two mounting shafts through a bracket, cleaning rollers are connected to the mounting shafts, the two cleaning rollers are mirror-imaged, a cleaning shovel is installed on the sliding frame through a bracket, and the two cleaning shovels are respectively located on one side of the two cleaning rollers close to the mounting frame.

[0015] Preferably, one end of the mounting shaft is rotatably connected to a ratchet, a pawl is provided at the connection between the mounting shaft and the ratchet, the pawl is in contact with the ratchet, a shift fork is installed on the sliding frame, a notch is provided on the shift fork, a shift rod is provided on the outer wall of the ratchet, and the shift rods of the two ratchets are in contact with the notches of the two shift forks respectively.

[0016] Preferably, two scrapers are installed on the recycling box through a bracket, and the two scrapers are in contact with two cleaning rollers respectively. An elastic plate is installed on the bottom of the scraper through a spring, and a plurality of knocking blocks are installed on the elastic plate. The plurality of knocking blocks are in contact with the bottom surface of the scraper during movement. The elastic plate is connected with a spring sheet, and the outer wall of the mounting shaft is connected with a plurality of protrusions, and the plurality of protrusions are in contact with the spring sheet in turn during the movement.

[0017] Preferably, an airbag is installed on the inner side of the mounting seat, and the two airbags are connected to the water tank through an air pipe. The water tank is connected to two atomizing nozzles through a water pipe. The two atomizing nozzles are respectively located on the side of the two cleaning rollers away from the cleaning shovel, and the two sliding frames are respectively in contact with the two airbags during movement.

[0018] A high frequency welding process for processing H-beam comprises the following steps:

[0019] Step 1: Material preparation: prepare the steel plate to be cut and use the slitting cutting machine to cut the steel plate into the required size;

[0020] Step 2: Splicing and assembling: Use the assembly device to assemble the cut steel plates into the shape of H-shaped steel, and spot weld the connecting parts between the steel plates for temporary fixation;

[0021] Step 3: Material cleaning: Use the conveying device to convey the H-beam to be welded to the mounting frame. The two support rollers support the H-beam. The lower correction roller and the conveying device cooperate to drive the H-beam to move. During the H-beam conveying process, the cleaning component cleans the H-beam to be welded.

[0022] Step 4: Pre-correction: After the two side correction rollers touch the H-beam, the staff rotates the two No. 1 adjustment screws and the two No. 2 adjustment screws to make the two side correction rollers and the lower correction roller tightly press against the H-beam to pre-correct the H-beam;

[0023] Step 5: Welding: The pre-corrected H-beam passes through two welding heads, and the two welding heads perform high-frequency welding on the moving H-beam;

[0024] Step 6: Appearance processing: the welded H-beam is inspected for appearance after cooling, the deformed H-beam is corrected for the second time, the weld of the H-beam is processed, the leaked parts of the H-beam are repaired, and finally polished and painted according to production requirements.

[0025] The beneficial effects are:

[0026] 1. The high-frequency welding device for processing H-beams, through the setting of the correction component, enables the two side correction rollers and the lower correction roller to correct and shape the H-beam in motion by extrusion, so that the H-beam is corrected before welding, avoiding the occurrence of welds due to loose connection of the welding position caused by deformation, thereby improving the welding quality of the H-beam. Through the setting of the No. 1 adjusting screw and the No. 2 adjusting screw, the staff can adjust the two side correction rollers in four directions to meet the correction operation of H-beams with different thicknesses.

[0027] 2. The high-frequency welding device for processing H-shaped steel has two grinding blocks, so that before welding, the two grinding blocks can grind the flange of the H-shaped steel to avoid the burrs generated when cutting the steel plate affecting the appearance quality.

[0028] 3. The high-frequency welding device for processing H-shaped steel, through the setting of the cleaning component, enables two cleaning rollers and two cleaning shovels to clean the to-be-welded parts of the H-shaped steel before welding, remove impurities in the to-be-welded parts, and avoid impurities affecting the quality of the weld; through the setting of the scraper, the scraper can clean the cleaning roller to maintain the cleanliness of the cleaning roller; through the setting of the two atomizing nozzles, the two atomizing nozzles can spray the cleaning agent on the H-shaped steel before cleaning, so that the two cleaning rollers can remove oil stains on the H-shaped steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of the mounting frame of the present invention;

[0032] Figure 3 is a schematic diagram of the correction assembly structure of the present invention;

[0033] Figure 4 It is a schematic diagram of the structure of the lower correction roller of the present invention;

[0034] Figure 5 It is a schematic diagram of the structure of the side correction roller of the present invention;

[0035] Figure 6 It is a schematic diagram of the structure of the grinding block of the present invention;

[0036] Figure 7It is a schematic diagram of the structure of the cleaning component of the present invention;

[0037] Figure 8 It is a schematic diagram of the structure of the sliding frame of the present invention;

[0038] Fig. 9 It is a schematic diagram of the airbag structure of the present invention;

[0039] Fig.10 It is a schematic diagram of the cleaning roller structure of the present invention;

[0040] Fig.11 It is a schematic diagram of the elastic plate structure of the present invention.

[0041] The accompanying drawings are marked as follows: 1. Mounting frame; 2. Lower pressure roller; 3. Welding machine; 31. Welding head; 4. Mounting seat; 5. Correction assembly; 51. Motor; 52. Rotating shaft; 53. Lower correction roller; 54. Mounting block; 55. Mounting cover; 56. Side correction roller; 57. No. 1 adjusting screw; 58. No. 2 adjusting screw; 59. Movable block; 510. Grinding block; 511. Cam; 512. Sliding frame; 513. Connecting rod; 6. Cleaning assembly; 61. Bottom plate; 62. Water tank; 63. Recovery tank; 64. Mounting shaft; 65. Cleaning roller; 66. Ratchet; 67. Fork; 68. Cleaning shovel; 69. Air bag; 610. Atomizing nozzle; 611. Scraper; 612. Shrapnel; 613. Bump; 614. Elastic plate; 615. Knocking block; 7. Support roller. DETAILED DESCRIPTION

[0042] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0043] Example 1

[0044] See also Figure 1 - Figure 6, A high-frequency welding device for processing H-shaped steel, comprising: a mounting frame 1, on which a lower pressing roller 2 is slidably mounted. A hydraulic cylinder is provided on the mounting frame 1, and the output end of the hydraulic cylinder is connected to the lower pressing roller 2. The lower pressing roller 2 descends driven by the hydraulic cylinder, so that the lower pressing roller 2 presses on the upper flange of the H-shaped steel. Two welding machines 3 are mounted on the mounting frame 1, and welding heads 31 are provided on the welding machines 3. The two welding heads 31 on the two welding machines 3 can be adjusted in position, so that the two welding heads 31 approach the connection position of the lower flange and the web of the H-shaped steel to weld the lower flange and the web of the H-shaped steel. Two supporting rollers 7 are mounted on the mounting frame 1, and the two supporting rollers 7 are located on the front and back sides of the mounting frame 1. Two mounting seats 4 are connected to one side of the mounting frame 1, and the two mounting seats 4 are arranged in a mirror image; a correction assembly 5 for correcting the H-shaped steel before welding. The correction assembly 5 is provided on the mounting seat 4. The correction assembly 5 includes a motor 51, and the motor 51 is mounted on the outside of one of the mounting seats 4. A rotating shaft 52 is rotatably mounted between the two mounting seats 4, and the output end of the motor 51 is connected to one end of the rotating shaft 52. A lower correction roller 53 is connected to the rotating shaft 52. The rotating shaft 52 drives the lower correction roller 53 to rotate. When the lower correction roller 53 rotates, it drives the H-shaped steel to move towards the mounting frame 1. An installation block 54 is slidably mounted on the mounting seat 4, and an installation cover 55 is slidably mounted on the installation block 54. Side correction rollers 56 are rotatably mounted on the installation cover 55, and the two side correction rollers 56 are arranged in a mirror image. The two side correction rollers 56 are both located above the lower correction roller 53. A "丄"-shaped gap is formed between the two side correction rollers 56 and the lower correction roller 53. The staff uses a transportation device to pass one end of the H-shaped steel through the gap between the two side correction rollers 56 and the lower correction roller 53. A plurality of supporting wheels are provided inside the installation cover 55, and all the supporting wheels are in contact with the side correction rollers 56. The supporting wheels inside the installation cover 55 play a role in supporting the side correction rollers 56, enhancing the stability of the side correction rollers 56. A first adjusting screw 57 is rotatably mounted on the inner wall of the installation block 54, and the first adjusting screw 57 is threadedly connected to the inner wall of the installation cover 55. The staff rotates the two first adjusting screws 57 through a handwheel. When the first adjusting screws 57 rotate, they drive the installation cover 55 to move left or right through the thread, so that the two side correction rollers 56 clamp the web of the H-shaped steel, thereby achieving the effect of correcting the web of the H-shaped steel. Two second adjusting screws 58 are rotatably mounted on the mounting seat 4, and the two second adjusting screws 58 are both threadedly connected to the installation block 54. Handwheels are respectively provided on the first adjusting screw 57 and the two second adjusting screws 58. When the two second adjusting screws 58 rotate, they can drive the installation block 54 to move up or down through the thread. The staff adjusts the up and down positions of the two side correction rollers 56 so that the two side correction rollers 56 and the lower correction roller 53 clamp the lower flange of the H-shaped steel and its connection position with the web, thereby achieving the effect of correcting the flange of the H-shaped steel;Through the setting of the correction component 5, the two side correction rollers 56 and the lower correction roller 53 correct and shape the moving H-shaped steel by extrusion, so that the H-shaped steel can be corrected before welding, avoiding the occurrence of welds due to loose connection of the welding position caused by deformation, and improving the welding quality of the H-shaped steel. Through the setting of the No. 1 adjustment screw 57 and the No. 2 adjustment screw 58, the staff can adjust the two side correction rollers 56 in four directions to meet the correction operation of H-shaped steels with different thicknesses. ;

[0045] For further information, see Figure 7 The correction component 5 also includes two movable blocks 59, which are slidably installed on the inner sides of the two mounting seats 4 respectively. A grinding block 510 is installed on the movable block 59 through a spring. The two grinding blocks 510 are mirror-imaged. A sliding frame 512 is slidably installed on the inner side of the mounting seat 4. Two cams 511 are connected to the outer wall of the rotating shaft 52. A connecting rod 513 is hinged on the sliding frame 512. The two cams 511 are respectively located at both ends of the lower correction roller 53. The sliding frame 512 is provided with square grooves. The square grooves of the two sliding frames 512 are in contact with the two cams 511 respectively. When the two cams 511 rotate, they respectively drive the two sliding frames 512 to move back and forth through the square grooves on the two sliding frames 512. The connecting rod 513 is away from the sliding frame 512. One end is hinged to the movable block 59. When the two movable blocks 59 move, the two grinding blocks 510 are driven by the spring to move up and down reciprocatingly. The two grinding blocks 510 use the elastic force of the spring to maintain contact with the edges on both sides of the H-beam flange. During the movement of the H-beam, the two grinding blocks 510 grind the edges on both sides of the flange of the H-beam by reciprocating movement. Since burrs will be generated in the process of cutting the steel plate, the burrs on the flange of the H-beam affect the appearance quality of the product. By grinding the flange, the burrs can be polished smooth to improve the appearance quality of the product. By setting the two grinding blocks 510, the two grinding blocks 510 can grind the flange of the H-beam before welding the H-beam to avoid the burrs generated when the steel plate is cut affecting the appearance quality.

[0046] Further, see Figure 8 - Fig.11, a cleaning assembly 6 is used to clean impurities on the surface of the H-shaped steel before welding. The cleaning assembly 6 is arranged on the mounting seat 4. The cleaning assembly 6 includes a bottom plate 61, which is installed between the two mounting seats 4. A water tank 62 is installed on the bottom plate 61. A recovery box 63 is connected to the top of the water tank 62. Two mounting shafts 64 are rotatably installed on the top of the recovery box 63 through a bracket. A cleaning roller 65 is connected to the mounting shaft 64. The two cleaning rollers 65 are mirror-imaged. The H-shaped steel contacts the two cleaning rollers 65 during movement. The two cleaning rollers 65 clean the lower flange and both sides of the web of the H-shaped steel. A cleaning shovel 68 is installed on the sliding frame 512 through a bracket. The two cleaning shovels 68 are respectively located at two A cleaning roller 65 is close to one side of the mounting frame 1, and the sliding frame 512 drives two cleaning shovels 68 to move synchronously when moving. The two cleaning shovels 68 scrape off the impurities and sewage on the lower flange of the H-shaped steel by constantly moving back and forth, and the sewage falls into the recycling box 63 for collection, and the staff cleans it regularly; one end of the mounting shaft 64 is rotatably connected to a ratchet 66, and a pawl is provided at the connection between the mounting shaft 64 and the ratchet 66, and the pawl contacts the ratchet 66. A shift fork 67 is installed on the sliding frame 512, and a notch is provided on the shift fork 67. A shift rod is provided on the outer wall of the ratchet 66, and the shift rods of the two ratchet wheels 66 are respectively in contact with the notches of the two shift forks 67. When the shift fork 67 moves back and forth, it passes through the shift fork 66 The cooperation between the notch 7 and the lever drives the ratchet 66 to rotate back and forth. The ratchet 66 can drive the mounting shaft 64 to rotate intermittently in one direction during the reciprocating rotation, so that the two cleaning rollers 65 can also rotate in the process of cleaning the H-shaped steel, so that different parts of the cleaning rollers 65 contact the H-shaped steel in turn, so as to avoid a large amount of dirt being attached to the same part due to continuous cleaning, thereby affecting the cleaning effect; two scrapers 611 are installed on the recovery box 63 through a bracket, and the two scrapers 611 are in contact with the two cleaning rollers 65 respectively. The scrapers 611 scrape off the impurities attached to the cleaning rollers 65 through contact with the cleaning rollers 65, and an elastic plate 614 is installed at the bottom of the scraper 611 through a spring. The elastic plate A plurality of knocking blocks 615 are installed on 614, and the plurality of knocking blocks 615 contact the bottom surface of the scraper 611 during movement. A spring piece 612 is connected to the elastic plate 614, and a plurality of protrusions 613 are connected to the outer wall of the mounting shaft 64. The plurality of protrusions 613 contact the spring piece 612 in sequence during movement. When the mounting shaft 64 rotates, the plurality of protrusions 613 sequentially move the spring piece 612, so that the spring piece 612 drives the elastic plate 614 to vibrate. The spring on the elastic plate 614 can increase the vibration amplitude. The plurality of knocking blocks 615 vibrate synchronously and continuously knock the scraper 611 during the vibration process, thereby promoting the impurities on the scraper 611 to slide onto the H-shaped steel, thereby maintaining the cleanliness of the cleaning roller 65.The water tank 62 is filled with a cleaning agent, and an air bag 69 is installed on the inner side of the mounting seat 4. The two air bags 69 are connected to the water tank 62 through an air pipe. The water tank 62 is connected to two atomizing nozzles 610 through a water pipe. The two atomizing nozzles 610 are respectively located on the side of the two cleaning rollers 65 away from the cleaning shovel 68. The two sliding frames 512 are respectively in contact with the two air bags 69 during the movement. The two air bags 69 continuously inject air into the water tank 62 through the air pipe. The two atomizing nozzles 610 atomize the cleaning agent and spray it on the lower flange and both sides of the web of the H-shaped steel, which is helpful for the two cleaning rollers 65 to be cleaned. The two cleaning rollers 65 can remove oil stains; through the setting of the cleaning assembly 6, the two cleaning rollers 65 and the two cleaning shovels 68 can clean the parts to be welded of the H-shaped steel before welding, remove impurities in the parts to be welded, and avoid impurities affecting the quality of the weld; through the setting of the scraper 611, the scraper 611 can clean the cleaning roller 65 to maintain the cleanliness of the cleaning roller 65; through the setting of the two atomizing nozzles 610, the two atomizing nozzles 610 can spray the cleaning agent on the H-shaped steel before cleaning, so that the two cleaning rollers 65 can remove oil stains on the H-shaped steel. ;

[0047] Example 2

[0048] A high-frequency welding process for processing H-beam, using a high-frequency welding device for processing H-beam in Example 1, further comprising the following steps:

[0049] Step 1: Material preparation: prepare the steel plate to be cut and use the slitting cutting machine to cut the steel plate into the required size;

[0050] Step 2: Splicing and assembling: Use the assembly device to assemble the cut steel plates into the shape of H-shaped steel, and spot weld the connecting parts between the steel plates for temporary fixation;

[0051] Step 3: Material cleaning: Use a conveying device to convey the H-beam to be welded to the mounting frame 1. The two support rollers 7 support the H-beam. The lower correction roller 53 cooperates with the conveying device to drive the H-beam to move. During the conveying process of the H-beam, the cleaning component 6 cleans the part of the H-beam to be welded.

[0052] Step 4: Pre-correction: After the two side correction rollers 56 contact the H-beam, the staff rotates the two No. 1 adjustment screws 57 and the two No. 2 adjustment screws 58 to make the two side correction rollers 56 and the lower correction roller 53 tightly press against the H-beam to pre-correct the H-beam;

[0053] Step 5: welding, the pre-corrected H-beam passes through two welding heads 31, and the two welding heads 31 perform high-frequency welding on the moving H-beam;

[0054] Step Six: Appearance treatment. After the welded H-beam is cooled, it is subjected to appearance inspection. The deformed H-beam is corrected for the second time. The welds of the H-beam are treated, and the missed welding parts of the H-beam are repaired by welding. Finally, polishing and painting treatments are carried out according to production requirements.

[0055] With the above structure, the working principle of this case is that an "丄"-shaped gap is formed between the two side correction rollers 56 and the lower correction roller 53. The staff uses the transport device to pass one end of the H-beam through the gap between the two side correction rollers 56 and the lower correction roller 53. The staff rotates the two first adjustment screws 57 through the handwheel. When the first adjustment screws 57 rotate, they drive the mounting cover 55 to move left or right through the thread. The mounting cover 55 drives the side correction rollers 56 to move synchronously. The support wheels in the mounting cover 55 play a role in supporting the side correction rollers 56, enhancing the stability of the side correction rollers 56. The staff adjusts the positions of the two side correction rollers 56 so that the two side correction rollers 56 clamp the web of the H-beam, thus achieving the effect of correcting the web of the H-beam. The staff then rotates the four second adjustment screws 58 through the handwheel. When the two second adjustment screws 58 rotate, they can drive the mounting block 54 to move up or down through the thread. The mounting block 54 drives the side correction rollers 56 to move synchronously through the mounting cover 55. The staff adjusts the up and down positions of the two side correction rollers 56 so that the two side correction rollers 56 and the lower correction roller 53 clamp the lower flange of the H-beam and its connection position with the web, thus achieving the effect of correcting the flange of the H-beam. Start the motor 51. The motor 51 drives the rotating shaft 52 to rotate. The rotating shaft 52 drives the lower correction roller 53 to rotate. When the lower correction roller 53 rotates, it drives the H-beam to move towards the displacement of the mounting frame 1. The two support rollers 7 are located on the front and back sides of the mounting frame 1. The two support rollers 7 and the two side correction rollers 56 rotate following the movement of the H-beam, so that the H-beam slowly passes through the middle part of the mounting frame 1. The two welding heads 31 on the two welding machines 3 can be adjusted in position so that the two welding heads 31 are close to the connection position of the lower flange and the web of the H-beam, and the lower flange and the web of the H-beam are welded. At the same time of welding, the pressing roller 2 descends under the drive of the hydraulic cylinder, so that the pressing roller 2 presses the upper flange of the H-beam, so that the connection position of the flange and the web is squeezed together after melting under the downward pressure to achieve the welding effect. The H-beam completes the welding operation during the movement. After the lower flange of the H-beam is welded, it is flipped 180 degrees. In the same way as the above steps, the upper flange of the H-beam is corrected and welded; through the setting of the correction assembly 5, the two side correction rollers 56 and the lower correction roller 53 correct and shape the moving H-beam by extrusion, so that the H-beam is corrected before welding, avoiding the occurrence of welds due to loose connection at the welding position caused by deformation, improving the welding quality of the H-beam. Through the setting of the first adjustment screw 57 and the second adjustment screw 58, the staff can perform four-way adjustment on the two side correction rollers 56 to meet the correction operations of H-beams with different thicknesses.

[0056] When the rotating shaft 52 rotates, it drives the two cams 511 to rotate. Since the mounting seat 4 limits the sliding frame 512, the sliding frame 512 can only slide forward and backward. When the two cams 511 rotate, they drive the two sliding frames 512 to reciprocate forward and backward through the square grooves on the two sliding frames 512. Since the mounting seat 4 limits the movable block 59, the movable block 59 can only slide up and down. During the reciprocating movement of the two sliding frames 512, the two movable blocks 59 are driven to reciprocate up and down through the two connecting rods 513. When the two movable blocks 59 move, they drive the two grinding blocks 510 to move up and down through the springs. The two grinding blocks 510 use the elastic force of the spring to maintain contact with the edges of the two sides of the H-beam flange. During the movement of the H-beam, the two grinding blocks 510 grind the edges of the two sides of the H-beam flange by reciprocating. Since burrs will be generated in the process of cutting the steel plate, the burrs on the flange of the H-beam affect the appearance quality of the product. By grinding the flange, the burrs can be polished smooth to improve the appearance quality of the product. Through the setting of the two grinding blocks 510, the two grinding blocks 510 can grind the flange of the H-beam before welding the H-beam to avoid the burrs generated when the steel plate is cut affecting the appearance quality.

[0057] Since steel plates are prone to be attached with oil stains during the production process, a cleaning agent is contained in the water tank 62 on the bottom plate 61. The two sliding frames 512 respectively contact and squeeze the two air bags 69 when moving back and forth, so that the two air bags 69 continuously inject air into the water tank 62 through the air pipe. The water tank 62 transports the cleaning agent to the two atomizing nozzles 610 through the water pipe through the positive pressure action. The two atomizing nozzles 610 atomize the cleaning agent and spray it on the lower flange and both sides of the web of the H-shaped steel. The H-shaped steel contacts the two cleaning rollers 65 during the movement. The two cleaning rollers 65 clean the lower flange and both sides of the web of the H-shaped steel. The spraying of the cleaning agent helps the two cleaning rollers 65 to remove oil stains. The two sliding frames 512 respectively drive the two shift forks during the movement. 67 moves synchronously, and the fork 67 drives the ratchet 66 to reciprocate through the cooperation of the notch of the fork 67 and the shift rod when it moves back and forth. The ratchet 66 cooperates with the pawl so that the ratchet 66 can drive the mounting shaft 64 to rotate intermittently in one direction during the reciprocating rotation. When the mounting shaft 64 rotates, it drives the cleaning roller 65 to rotate synchronously, so that the two cleaning rollers 65 can also rotate in the process of cleaning the H-shaped steel, so that different parts of the cleaning roller 65 contact the H-shaped steel in turn, so as to avoid the same part from being continuously cleaned and adhering to a large amount of dirt, thereby affecting the cleaning effect; when the cleaning roller 65 rotates, the scraper 611 scrapes off the impurities attached to the cleaning roller 65 through contact with the cleaning roller 65, and when the mounting shaft 64 rotates, the mounting shaft The multiple protrusions 613 on 64 sequentially move the spring pieces 612, so that the spring pieces 612 drive the elastic plate 614 to vibrate. The spring on the elastic plate 614 can increase the vibration amplitude. When the elastic plate 614 vibrates, the multiple knocking blocks 615 vibrate synchronously and continuously knock the scraper 611 during the vibration process, thereby promoting the impurities on the scraper 611 to slide onto the H-shaped steel, thereby maintaining the cleanliness of the cleaning roller 65; the sliding frame 512 drives the two cleaning shovels 68 to move synchronously when moving. The two cleaning shovels 68 scrape off the impurities and sewage on the lower flange of the H-shaped steel by continuously moving back and forth. The sewage falls into the recovery box 63 for collection, and the staff regularly cleans it. Since the impurities and oil stains on the H-shaped steel are cleaned first and then fall back to the lower wing The adhesion of impurities and dirt on the edge is greatly reduced. After being cleaned by two cleaning shovels 68, the impurities and dirt slide down the cleaning shovels 68 into the recovery box 63, and will not cause secondary pollution to the H-shaped steel; through the setting of the cleaning component 6, the two cleaning rollers 65 and the two cleaning shovels 68 can clean the to-be-welded parts of the H-shaped steel before welding, remove impurities in the to-be-welded parts, and avoid impurities affecting the quality of the weld; through the setting of the scraper 611, the scraper 611 can clean the cleaning roller 65 to maintain the cleanliness of the cleaning roller 65; through the setting of the two atomizing nozzles 610, the two atomizing nozzles 610 can spray the cleaning agent on the H-shaped steel before cleaning, so that the two cleaning rollers 65 can remove the oil stains on the H-shaped steel.

[0058] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A high frequency welding device for processing H-beam, characterized in that: include: Mounting frame (1); A straightening assembly (5) for straightening the H-beam before welding; A cleaning assembly (6) for cleaning impurities on the surface of the H-beam before welding; A lower pressure roller (2) is slidably mounted on the mounting frame (1), a hydraulic cylinder is arranged on the mounting frame (1), the output end of the hydraulic cylinder is connected to the lower pressure roller (2), two welding machines (3) are mounted on the mounting frame (1), a welding head (31) is arranged on the welding machine (3), two supporting rollers (7) are mounted on the mounting frame (1), one side of the mounting frame (1) is connected to two mounting seats (4), the two mounting seats (4) are arranged in a mirror image, the correction component (5) is arranged on the mounting seat (4), and the cleaning component (6) is arranged on the mounting seat (4); The correction component (5) comprises a motor (51), the motor (51) being mounted on the outside of one of the mounting seats (4), a rotating shaft (52) being rotatably mounted between the two mounting seats (4), an output end of the motor (51) being connected to one end of the rotating shaft (52), a lower correction roller (53) being connected to the rotating shaft (52), a mounting block (54) being slidably mounted on the mounting seat (4), a mounting cover (55) being slidably mounted on the mounting block (54), a side correction roller (56) being rotatably mounted on the mounting cover (55), the two side correction rollers (56) being arranged in mirror image, and both the two side correction rollers (56) being located above the lower correction roller (53); The correction assembly (5) further comprises two movable blocks (59), the two movable blocks (59) being slidably mounted on the inner sides of the two mounting seats (4) respectively, a grinding block (510) being mounted on the movable block (59) via a spring, the two grinding blocks (510) being arranged in a mirror image, a sliding frame (512) being slidably mounted on the inner side of the mounting seat (4), two cams (511) being connected to the outer wall of the rotating shaft (52), and a connecting rod (513) being hingedly connected to the sliding frame (512); The two cams (511) are respectively located at two ends of the lower correction roller (53); a square groove is provided on the sliding frame (512); the square grooves of the two sliding frames (512) are respectively in contact with the two cams (511); and one end of the connecting rod (513) away from the sliding frame (512) is hinged to the movable block (59); The cleaning assembly (6) comprises a bottom plate (61), the bottom plate (61) being mounted between two mounting seats (4), a water tank (62) being mounted on the bottom plate (61), a recovery box (63) being connected to the top of the water tank (62), two mounting shafts (64) being rotatably mounted on the top of the recovery box (63) via a bracket, a cleaning roller (65) being connected to the mounting shaft (64), the two cleaning rollers (65) being arranged in a mirror image, a cleaning shovel (68) being mounted on the sliding frame (512) via a bracket, the two cleaning shovels (68) being respectively located on one side of the two cleaning rollers (65) close to the mounting frame (1).

2. A high frequency welding device for processing H-beam according to claim 1, characterized in that: A plurality of support wheels are arranged inside the mounting cover (55), and the plurality of support wheels are in contact with the side correction roller (56). A No. 1 adjusting screw (57) is rotatably mounted on the inner wall of the mounting block (54), and the No. 1 adjusting screw (57) is threadedly connected to the inner wall of the mounting cover (55).

3. A high frequency welding device for processing H-beam according to claim 2, characterized in that: Two No. 2 adjusting screws (58) are rotatably mounted on the mounting seat (4), and the two No. 2 adjusting screws (58) are both threadedly connected to the mounting block (54). Hand wheels are respectively provided on the No. 1 adjusting screw (57) and the two No. 2 adjusting screws (58).

4. A high frequency welding device for processing H-beam according to claim 3, characterized in that: One end of the mounting shaft (64) is rotatably connected to a ratchet (66); a pawl is provided at the connection between the mounting shaft (64) and the ratchet (66); the pawl contacts the ratchet (66); a shift fork (67) is mounted on the sliding frame (512); a notch is provided on the shift fork (67); a shift rod is provided on the outer wall of the ratchet (66); the shift rods of the two ratchets (66) contact the notches of the two shift forks (67) respectively.

5. A high frequency welding device for processing H-beam according to claim 4, characterized in that: Two scrapers (611) are mounted on the recovery box (63) via a bracket, the two scrapers (611) are in contact with two cleaning rollers (65) respectively, an elastic plate (614) is mounted on the bottom of the scraper (611) via a spring, a plurality of knocking blocks (615) are mounted on the elastic plate (614), the plurality of knocking blocks (615) are in contact with the bottom surface of the scraper (611) when moving, a spring sheet (612) is connected to the elastic plate (614), and a plurality of protrusions (613) are connected to the outer wall of the mounting shaft (64), the plurality of protrusions (613) are in contact with the spring sheet (612) in sequence during the movement.

6. A high frequency welding device for processing H-beam according to claim 5, characterized in that: An air bag (69) is installed on the inner side of the mounting seat (4); the two air bags (69) are connected to the water tank (62) via air pipes; the water tank (62) is connected to two atomizing nozzles (610) via water pipes; the two atomizing nozzles (610) are respectively located on one side of the two cleaning rollers (65) away from the cleaning shovel (68); and the two sliding frames (512) are respectively in contact with the two air bags (69) during movement.

7. A high frequency welding process for processing H-beam, characterized in that: The high frequency welding device for processing H-beam according to any one of claims 1 to 6 further comprises the following steps: Step 1: Material preparation: prepare the steel plate to be cut and use the slitting cutting machine to cut the steel plate into the required size; Step 2: Splicing and assembling: Use the assembly device to assemble the cut steel plates into the shape of H-shaped steel, and spot weld the connecting parts between the steel plates for temporary fixation; Step 3: Material cleaning: Use a conveying device to convey the H-shaped steel to be welded to the mounting frame (1); two support rollers (7) support the H-shaped steel; the lower correction roller (53) cooperates with the conveying device to drive the H-shaped steel to move; during the conveying process of the H-shaped steel, the cleaning component (6) cleans the part of the H-shaped steel to be welded; Step 4: Pre-correction: After the two side correcting rollers (56) contact the H-shaped steel, the staff rotates the two No. 1 adjusting screws (57) and the two No. 2 adjusting screws (58) to make the two side correcting rollers (56) and the lower correcting roller (53) tightly press against the H-shaped steel, thereby pre-correcting the H-shaped steel; Step 5: welding, the pre-corrected H-shaped steel is passed through two welding heads (31), and the two welding heads (31) perform high-frequency welding on the moving H-shaped steel; Step 6: Appearance processing: the welded H-beam is inspected for appearance after cooling, the deformed H-beam is corrected for the second time, the weld of the H-beam is processed, the leaked parts of the H-beam are repaired, and finally polished and painted according to production requirements.

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