Automatic welding and forming device for fireproof door frame

Abstract

The application provides a fireproof door frame automatic welding forming device, and relates to the technical field of welding devices.The device comprises a welding table, the top of the welding table is provided with a clamping assembly, the clamping assembly is divided into upper and lower parts, the upper part of the clamping assembly is clamped with vertical plates on both sides, and the lower part of the clamping assembly is clamped with horizontal plates on both sides;two horizontal plates and two vertical plates are combined into a fireproof door frame, and the two ends of the horizontal plates and the vertical plates are provided with inclined surfaces;the clamping assembly comprises a lower sliding rail, the upper part of the lower sliding rail is provided with an upper sliding rail, and the top of the upper sliding rail and the bottom of the lower sliding rail are both provided with two clamping frames;the horizontal plates and the vertical plates are inserted into the clamping position of the butt joint and clamped and fixed through the clamping assembly, then the vertical plates and the horizontal plates are rotated to be perpendicular, and the length of the horizontal plates and the vertical plates is adjusted, so that the butt joint of the horizontal plates and the vertical plates is accurate, and the four corners of the butt joint of the horizontal plates and the vertical plates are efficiently welded through the combined welding assembly.

Description

Technical Field

[0001] This disclosure relates to the field of welding equipment technology, and in particular to an automatic welding and forming device for fire door frames. Background Technology

[0002] Fire doors are fire-resistant partitions that meet the requirements for fire resistance stability, integrity, and thermal insulation within a specified time. They are mainly used in fire compartments, evacuation stairwells, and vertical shafts. They consist of a door frame, door leaf, and accessories such as fire-resistant hinges and door closers. Based on material, they are classified as wood, steel, or steel-wood types. Based on structural type, they include those with fire-resistant glass and those with transom windows. Fire doors require a frame for installation, and the frame is composed of welded horizontal and vertical sheet metal parts.

[0003] When welding fire door frames, horizontal and vertical sheet metal parts need to be clamped and joined together before welding. During this process, misalignment or unevenness can easily occur, affecting the accuracy of the joint and the subsequent welding of the fire door frame. This not only increases the welding difficulty but may also lead to quality problems such as incomplete welds or missing welds. In severe cases, manual adjustments are required, reducing production efficiency. Summary of the Invention

[0004] This disclosure aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this disclosure is to provide an automatic welding and forming device for fire door frames.

[0006] To achieve the above objectives, this disclosure provides an automatic welding and forming device for fire door frames, comprising: a welding table, the top of which is provided with a clamping assembly, the clamping assembly being divided into upper and lower parts, the upper part of which clamps vertical plates on both sides, and the lower part of which clamps horizontal plates on both sides; the two horizontal plates and the two vertical plates are combined to form a fire door frame, and both ends of the horizontal and vertical plates are provided with inclined surfaces; the clamping assembly includes a lower slide rail, the upper part of which is provided with an upper slide rail, and two clamping frames are symmetrically provided at the top and bottom of the upper slide rail; the welding assembly includes a sliding frame, the sliding frame being provided in two sets, the two sets of sliding frames being symmetrically slidably mounted on the surface of the welding table, two bases being symmetrically slidably connected inside the sliding frame, and a fixing plate being rotatably mounted on the top of the base, a lower ring being fixed on the top of the fixing plate, an upper ring being provided on the top of the lower ring, the upper ring and the lower ring being combined to form a complete ring, and welding heads being installed inside the upper ring and the lower ring.

[0007] Optionally, the clamping assembly further includes: a first bidirectional screw and a second bidirectional screw, wherein the first bidirectional screw is rotatably mounted inside the lower slide rail, and the second bidirectional screw is rotatably mounted inside the upper slide rail. Two screw blocks are threaded onto the surfaces of both the first and second bidirectional screws, and the screw blocks are fixedly connected to the clamping frame. A drive motor is fixedly mounted at the outer ends of the upper and lower slide rails corresponding to the positions of the first and second bidirectional screws, and the first and second bidirectional screws are fixedly connected to the output ends of the drive motors.

[0008] Optionally, the clamping frame includes a clamping frame, with a clamping plate on the outer side of the clamping frame. A top frame is provided on the side of the clamping frame near the upper slide rail. The end of the clamping frame away from the top frame is fixed to a screw block. The clamping plate and the top frame are slidably inserted into the bottom and top of the clamping frame respectively via insert rods. The inner sides of the clamping plate and the clamping frame are in pressure contact with the sides of the horizontal and vertical plates. The clamping frame and the top frame are in pressure contact with the top and bottom of the horizontal and vertical plates. A second spring is fixed at the insertion position of the top frame and the clamping plate into the clamping frame.

[0009] Optionally, two sets of clamping frames of the lower slide rail are fixed with bidirectional electric push rods on their outer sides, and two extended ends of the bidirectional electric push rods are fixed with connecting blocks. The bottom of the connecting blocks is fixedly connected to the base. A third electric push rod is fixed inside the connecting blocks, and a right-angle plate is fixed to the extended end of the third electric push rod. The right-angle plate contacts the outer side of the joint between the horizontal plate and the vertical plate.

[0010] Optionally, a first electric push rod is fixed to both ends of the lower slide rail and the upper slide rail, and a slide frame is fixed to the extended end of the first electric push rod. The top frame is slidably sleeved on the slide frame, and the slide frames of the lower slide rail and the upper slide rail are both concave plates. The two sets of slide frames are staggered, and a groove is provided in the middle of the two sets of slide frames.

[0011] Optionally, a first motor is fixed at the bottom of the lower slide rail corresponding to the welding table, and the output end of the first motor is fixedly connected to the lower slide rail. A second electric push rod is fixed at the middle groove of the slide frame of the lower slide rail, and the extended end of the second electric push rod is rotatably connected to the middle groove of the slide frame of the upper slide rail.

[0012] Optionally, the welding assembly further includes: a third motor, a gear, a half-tooth ring, and a rotating ring. The inner rings of both the upper and lower circular rings are slidably mounted with rotating rings. A half-gear is fixed to the outer side of the half-tooth ring. The two rotating rings and two half-gears merge into a single circular ring on the upper and lower circular rings. The third motor is fixed to the surface of the fixing plate, and a gear is fixed to the output end of the third motor. The gear meshes with the half-gear. The base contains a motor that drives the fixing plate to rotate.

[0013] Optionally, a third bidirectional screw is rotatably mounted inside the slide frame, and the two bases are threaded onto the surface of the third bidirectional screw. A second motor is fixed to the outer end of the slide frame, and the output end of the second motor is fixedly connected to the third bidirectional screw. A fourth electric push rod is fixed to the surface of the rotating ring, and the extended end of the fourth electric push rod is fixedly connected to the welding head.

[0014] Optionally, two symmetrical grooves are formed on the surface of the welding table, and the bottom of the sliding frame slides along the inside of the groove. A first spring is fixed at both ends of the groove, and the other end of the first spring is fixedly connected to the sliding frame.

[0015] Optionally, a top frame is fixed to the top of the upper slide rail, and two slide plates are symmetrically slidably connected inside the top frame. An electric bidirectional telescopic plate is fixed inside the slide plate, and the two extended ends of the electric bidirectional telescopic plate are fixedly connected to the upper rings at both ends. A third spring is fixed to both ends of the top frame, and the other end of the third spring is fixedly connected to the slide plate. The two ends of the electric bidirectional telescopic plate's storage end are fixed with contact plates, and the contact plates are in contact with the outer side of the vertical plate.

[0016] The technical solution provided in this disclosure may include the following beneficial effects: 1. The present invention uses a motor to drive the first and second bidirectional screws to rotate, thereby moving their respective clamping frames to adjust the length of the horizontal and vertical plates. First, the two clamping frames of the lower slide rail are moved to both ends of the lower slide rail. Then, the second bidirectional screw is used to adjust the position of the two vertical plates to correspond to the length of the horizontal plate. Subsequently, the first bidirectional screw drives the clamping frames and the horizontal plate to move towards the middle, and the two ends of the horizontal and vertical plates are joined together to form a complete frame. 2. In this invention, the connecting block is moved by a bidirectional electric push rod, and the right-angle plate is moved by a third electric push rod, so that the two right-angled sides of the right-angle plate contact the outer side of the docking position of the horizontal plate and the vertical plate, thereby limiting the horizontal plate and the vertical plate. During welding, in order to avoid interference from the right-angle plate, the right-angle plate is moved away from the docking position of the horizontal plate and the vertical plate by the third electric push rod. 3. In this invention, the upper slide rail is pushed upward by the second electric push rod. The welding table is fixed with a slide frame on both sides of the upper slide rail, and the two ends of the upper slide rail are slidably sleeved on the slide frame and slide vertically to separate the upper slide rail and the lower slide rail. At the same time, the lower slide rail is rotated by the first motor, which rotates the horizontal plate of the lower slide rail by 90 degrees. This can put the insertion position of the horizontal plate and the vertical plate in the same direction, which is convenient for the insertion and removal of the horizontal plate and the vertical plate. After the horizontal plate rotates to be perpendicular to the vertical plate, the extension end of the second electric push rod is retracted, and the horizontal plate and the vertical plate are kept on the same plane. The first electric push rod can drive the slide frame and the top frame to move, thereby clamping the horizontal plate and the vertical plate according to their thickness. The upper and lower parts of the clamping component will not cause movement interference because of the concave plate of the slide frame. 4. In this invention, a third motor drives a gear to rotate, which meshes with the half gears on the outer sides of the merged upper and lower rings, causing the internal rotating ring and welding head to rotate. The welding head performs circumferential welding around the docking position of the horizontal and vertical plates. The lower ring inside the base can be driven to rotate, thereby avoiding interference. The lower part of the clamping assembly aligns the horizontal and vertical plates with the direction of the first motor as it rotates.

[0017] 5. In this invention, the connecting block is moved by a bidirectional electric push rod on the outside of the clamping frame. When the right-angle plate is placed at both ends of the horizontal plate, the two sets of lower rings and sliding frames slide along the slide groove simultaneously, keeping the lower rings able to merge with the upper rings, thereby completing the annular rotation welding. The second motor drives the third bidirectional screw to rotate, and the base cooperates with the third bidirectional screw to slide along the inside of the sliding frame, simultaneously moving the lower rings. The position is adjusted according to the length of the vertical plate. During this process, the electric bidirectional telescopic plate simultaneously adjusts the position of the two upper rings according to the length of the vertical plate, keeping the upper and lower rings on the same vertical line. The contact plate contacts the outside of the vertical plate, and the position of the sliding plate inside the top frame is adjusted according to the length of the horizontal plate, thereby adjusting the position of the upper rings. The upper and lower rings are always on the same vertical line. The welding head is moved by the fourth electric push rod inside the rotating ring, which can approach the docking position of the horizontal and vertical plates, thus facilitating the welding process.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall structure of an automatic welding and forming device for fire door frames according to an embodiment of this disclosure; Figure 2 This is a schematic diagram of the insertion positions of the vertical and horizontal plates in an automatic welding and forming device for fire door frames according to an embodiment of this disclosure; Figure 3 This is a schematic diagram of the top structure of the welding table in an automatic welding and forming device for fire door frames according to an embodiment of this disclosure; Figure 4 This is a schematic diagram of the welding component structure in an automatic welding and forming device for fire door frames according to an embodiment of this disclosure; Figure 5 This is a schematic diagram of the connection between the electric bidirectional telescopic plate and the welding assembly in an automatic welding and forming device for fire door frames according to an embodiment of this disclosure; Figure 6This is a schematic diagram of the clamping component structure in an automatic welding and forming device for fire door frames according to an embodiment of the present disclosure; Figure 7 This is a schematic diagram of the connection between the vertical plate and the horizontal plate in an automatic welding and forming device for a fire door frame according to an embodiment of this disclosure; Figure 8 This is a schematic diagram of the clamping frame structure in an automatic welding and forming device for fire door frames according to an embodiment of this disclosure; Figure 9 This is a schematic diagram of the internal structure of the top frame in an automatic welding and forming device for fire door frames according to an embodiment of this disclosure; Figure 10 This is a schematic diagram of the internal structure of the upper slide rail in an automatic welding and forming device for fire door frames according to an embodiment of this disclosure; As shown in the figure: 1. Welding table; 11. Slide; 12. Slide groove; 13. First spring; 2. Clamping assembly; 21. Lower slide rail; 22. First motor; 23. Upper slide rail; 24. First electric push rod; 25. Slide frame; 26. Second electric push rod; 27. Clamping frame; 271. Clamping frame; 272. Top frame; 273. Clamping plate; 274. Second spring; 275. Screw block; 28. First bidirectional screw; 29. ​​Bidirectional electric push rod; 210. Connecting block; 211. Third electric push rod; 212. Right angle plate; 213. Second bidirectional screw; 3. Welding assembly; 31. Sliding frame; 32. Third bidirectional screw; 33. Second motor; 34. Base; 35. Third motor; 36. Gear; 37. Upper ring; 38. Lower ring; 39. Semi-tooth ring; 310. Fixing plate; 311. Rotary ring; 312. Fourth electric push rod; 313. Welding head; 314. Top frame; 315. Electric bidirectional telescopic plate; 316. Contact plate; 317. Slide plate; 318. Third spring; 4. Vertical board; 41. Horizontal board. Detailed Implementation

[0020] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown in the figure, this disclosure proposes an automatic welding and forming device for fire door frames, including: a welding table 1, the top of which is provided with a clamping assembly 2, the clamping assembly 2 being divided into upper and lower parts, the upper part of which clamps vertical plates 4 on both sides, and the lower part of which clamps horizontal plates 41 on both sides; the two horizontal plates 41 and the two vertical plates 4 are combined to form a fire door frame, and both ends of the horizontal plates 41 and the vertical plates 4 are provided with inclined surfaces; the clamping assembly 2 includes a lower slide rail 21, the upper part of which is provided with an upper slide rail 23, and the top of the upper slide rail 23 and the bottom of the lower slide rail 21 are symmetrically provided with two clamping frames 27; the welding assembly 3 includes a sliding frame 31, the sliding frame 31 being provided in two sets, the two sets of sliding frames 31 being symmetrically slidably installed on the welding assembly. On the surface of platform 1, two bases 34 are symmetrically slidably connected inside the sliding frame 31, and a fixing plate 310 is rotatably installed on the top of the base 34. A lower ring 38 is fixed on the top of the fixing plate 310, and an upper ring 37 is provided on the top of the lower ring 38. The upper ring 37 and the lower ring 38 are combined into a complete ring. Welding heads 313 are installed inside the upper ring 37 and the lower ring 38. The horizontal plate 41 and the vertical plate 4 are inserted into the clamping position by the clamping assembly 2 for clamping and fixing. Then, the vertical plate 4 and the horizontal plate 41 are rotated to the vertical direction and adjusted according to the length of the horizontal plate 41 and the vertical plate 4 to make the horizontal plate 41 and the vertical plate 4 accurately connected. The four corners of the horizontal plate 41 and the vertical plate 4 are efficiently welded by the combined welding assembly 3.

[0022] like Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 10As shown, in some embodiments, the clamping assembly 2 further includes: a first bidirectional screw 28 and a bidirectional screw 213. The first bidirectional screw 28 is rotatably mounted inside the lower slide rail 21, and the bidirectional screw 213 is rotatably mounted inside the upper slide rail 23. Two screw blocks 275 are threaded onto the surfaces of both the first bidirectional screw 28 and the bidirectional screw 213, and the screw blocks 275 are fixedly connected to the clamping frame 27. A drive motor is fixedly mounted at the outer ends of the upper slide rail 23 and the lower slide rail 21, corresponding to the positions of the first bidirectional screw 28 and the bidirectional screw 213, and the first bidirectional screw 28 and the bidirectional screw 213 are fixedly connected to the output ends of the drive motors. The clamping frame 27... The system includes a clamping frame 271, with a clamping plate 273 on its outer side. A top bracket 272 is provided on the side of the clamping frame 271 near the upper slide rail 23. The end of the clamping frame 271 away from the top bracket 272 is fixed to a screw block 275. The clamping plate 273 and the top bracket 272 are slidably inserted into the bottom and top of the clamping frame 271 respectively via insert rods. The inner sides of the clamping plate 273 and the clamping frame 271 are in pressure contact with the sides of the horizontal plate 41 and the vertical plate 4. The clamping frame 271 and the top bracket 272 are in pressure contact with the top and bottom of the horizontal plate 41 and the vertical plate 4. A second spring 274 is fixed at the insertion position of the top bracket 272 and the clamping plate 273 into the clamping frame 271.

[0023] It is understandable that by driving the first bidirectional screw 28 and the bidirectional screw 213 to rotate, the respective clamping frames 27 are moved, thereby adjusting the length of the horizontal plate 41 and the vertical plate 4. First, the two clamping frames 27 of the lower slide rail 21 are moved to both ends of the lower slide rail 21. Then, the bidirectional screw 213 is used to adjust the position of the two vertical plates 4 to correspond to the length of the horizontal plate 41. Subsequently, the first bidirectional screw 28 drives the clamping frames 27 and the horizontal plate 41 to move towards the middle, and the two ends of the horizontal plate 41 and the vertical plate 4 are joined to form a complete frame.

[0024] like Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 10 As shown, in some embodiments, two sets of clamping frames 271 of the lower slide rail 21 are fixed to the outside of a bidirectional electric push rod 29, and two extended ends of the bidirectional electric push rod 29 are fixed to a connecting block 210. The bottom of the connecting block 210 is fixedly connected to the base 34. A third electric push rod 211 is fixed inside the connecting block 210, and a right angle plate 212 is fixed to the extended end of the third electric push rod 211. The right angle plate 212 contacts the outside of the joint between the horizontal plate 41 and the vertical plate 4.

[0025] Understandably, the bidirectional electric push rod 29 drives the connecting block 210 to move, and the third electric push rod 211 pushes the right-angle plate 212 to move, so that the two right-angled sides of the right-angle plate 212 contact the outer side of the docking position of the horizontal plate 41 and the vertical plate 4, limiting the horizontal plate 41 and the vertical plate 4. During welding, in order to avoid interference from the right-angle plate 212, the third electric push rod 211 moves the right-angle plate 212 away from the docking position of the horizontal plate 41 and the vertical plate 4.

[0026] like Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 10 As shown, in some embodiments, a first electric push rod 24 is fixed to both ends of the lower slide rail 21 and the upper slide rail 23, and a slide frame 25 is fixed to the extended end of the first electric push rod 24. The top frame 272 is slidably sleeved on the slide frame 25. The slide frames 25 of the lower slide rail 21 and the upper slide rail 23 are both concave plates. The two sets of slide frames 25 are staggered, and a groove is provided in the middle of the two sets of slide frames 25. A first motor 22 is fixed to the bottom of the welding table 1 corresponding to the middle of the lower slide rail 21, and the output end of the first motor 22 is fixedly connected to the lower slide rail 21. A second electric push rod 26 is fixed to the middle groove of the slide frame 25 of the lower slide rail 21, and the extended end of the second electric push rod 26 is rotatably connected to the middle groove of the slide frame 25 of the upper slide rail 23.

[0027] It should be noted that the upper slide rail 23 is pushed upward by the second electric push rod 26. The welding table 1 is fixed with the slide frame 11 on both sides of the upper slide rail 23. The two ends of the upper slide rail 23 are slidably sleeved on the slide frame 11 and slide vertically to separate the upper slide rail 23 and the lower slide rail 21. At the same time, the lower slide rail 21 is rotated by the first motor 22, which rotates the horizontal plate 41 of the lower slide rail 21 by 90 degrees. This can put the insertion position of the horizontal plate 41 and the vertical plate 4 in the same direction, which is convenient for the insertion and removal of the horizontal plate 41 and the vertical plate 4. After the horizontal plate 41 is rotated to be perpendicular to the vertical plate 4, the extended end of the second electric push rod 26 is retracted, and the horizontal plate 41 and the vertical plate 4 are kept on the same plane. The first electric push rod 24 can drive the skateboard frame 25 and the top frame 272 to move, thereby clamping the thickness of the horizontal plate 41 and the vertical plate 4. The upper and lower parts of the clamping component 2 will not cause movement interference because the skateboard frame 25 is a concave plate.

[0028] like Figure 4As shown, in some embodiments, the welding assembly 3 further includes: a third motor 35, a gear 36, a half-tooth ring 39, and a rotating ring 311. The inner rings of the upper ring 37 and the lower ring 38 are slidably mounted with rotating rings 311. The outer side of the half-tooth ring 39 is fixed with a half-gear 36. The two rotating rings 311 and the two half-gears 36 merge into a circular ring on the upper ring 37 and the lower ring 38. The third motor 35 is fixed on the surface of the fixing plate 310, and the output end of the third motor 35 is fixed with a gear 36. The gear 36 meshes with the half-gear 36. The base 34 contains a motor that drives the fixing plate 310 to rotate.

[0029] It should be noted that the third motor 35 drives the gear 36 to rotate, which meshes with the half gear 36 on the outer side of the merged upper ring 37 and lower ring 38, thereby driving the internal rotating ring 311 and welding head 313 to rotate. The welding head 313 is used to perform circumferential welding around the docking position of the horizontal plate 41 and the vertical plate 4. The lower ring 38 inside the base 34 can be driven to rotate, thereby avoiding interference. The lower part of the clamping assembly 2 is aligned with the horizontal plate 41 and the vertical plate 4 as the first motor 22 rotates.

[0030] like Figure 3 , Figure 4 , Figure 5 and Figure 9 As shown, in some embodiments, a third bidirectional screw 32 is rotatably mounted inside the slide frame 31, and two bases 34 are threaded onto the surface of the third bidirectional screw 32. A second motor 33 is fixed to the outer end of the slide frame 31, and the output end of the second motor 33 is fixedly connected to the third bidirectional screw 32. A fourth electric push rod 312 is fixed to the surface of the rotating ring 311, and the extended end of the fourth electric push rod 312 is fixedly connected to the welding head 313. Two symmetrical sliding grooves 12 are formed on the surface of the welding table 1, and the bottom of the slide frame 31 slides along the inside of the sliding grooves 12. First springs 13 are fixed to both ends of the sliding grooves 12. The other end of the first spring 13 is fixedly connected to the slide frame 31. A top frame 314 is fixed to the top of the upper slide rail 23. Two slide plates 317 are symmetrically slidably connected inside the top frame 314. An electric bidirectional telescopic plate 315 is fixed inside the slide plate 317. The two extended ends of the electric bidirectional telescopic plate 315 are fixedly connected to the upper rings 37 at both ends. A third spring 317 is fixed to both ends of the top frame 314. The other end of the third spring 317 is fixedly connected to the slide plate 317. Contact plates 316 are fixed to both ends of the retracted end of the electric bidirectional telescopic plate 315. The contact plates 316 are in contact with the outer side of the vertical plate 4.

[0031] It should be noted that when the connecting block 210 is moved by the bidirectional electric push rod 29 on the outside of the clamping frame 27, and the right-angle plate 212 is placed at both ends of the horizontal plate 41, the two sets of lower rings 38 and the sliding frame 31 are simultaneously moved along the sliding groove 12, keeping the lower ring 38 able to merge with the upper ring 37, thereby completing the annular rotation welding. The second motor 33 drives the third bidirectional screw 32 to rotate, and the base 34 cooperates with the third bidirectional screw 32 to slide along the inside of the sliding frame 31, simultaneously moving the lower ring 38. The adjustment is made according to the length of the vertical plate 4. During this process, the electric... The bidirectional telescopic plate 315 synchronously adjusts the positions of the two upper rings 37 according to the length of the vertical plate 4, keeping the upper rings 37 and lower rings 38 on the same vertical line. It contacts the outside of the vertical plate 4 through the contact plate 316. It adjusts the position of the slide plate 317 inside the top frame 314 according to the length of the horizontal plate 41, thereby adjusting the position of the upper rings 37. The upper rings 37 and lower rings 38 are always on the same vertical line. The welding head 313 is moved by the fourth electric push rod 312 inside the rotating ring 311, which can approach the docking position of the horizontal plate 41 and the vertical plate 4, thus facilitating welding processing.

[0032] Working principle: In use, the first bidirectional screw 28 and the second bidirectional screw 213 are driven by the motor to rotate, which in turn moves the respective clamping frames 27, thereby adjusting the length of the horizontal plate 41 and the vertical plate 4. First, the two clamping frames 27 of the lower slide rail 21 are moved to both ends of the lower slide rail 21. Then, the second bidirectional screw 213 is used to adjust the position of the two vertical plates 4 so that they correspond to the length of the horizontal plate 41. Subsequently, the first bidirectional screw 28 drives the clamping frames 27 and the horizontal plate 41 to move towards the middle, and the two ends of the horizontal plate 41 and the vertical plate 4 are joined to form a complete frame. The bidirectional electric push rod 29 drives the connecting block 210 to move, and the third electric push rod 211 pushes the right-angle plate 212 to move, so that the two right-angled sides of the right-angle plate 212 are aligned with the joints of the horizontal plate 41 and the vertical plate 4. The outer contact is positioned to limit the horizontal plate 41 and the vertical plate 4. During welding, to avoid interference from the right-angle plate 212, the third electric push rod 211 moves the right-angle plate 212 away from the docking position of the horizontal plate 41 and the vertical plate 4. The second electric push rod pushes the upper slide rail 23 upward. The welding table 1 has a slide bracket 11 fixed on both sides corresponding to the upper slide rail 23, and the two ends of the upper slide rail 23 slide vertically along the slide bracket 11, separating the upper slide rail 23 and the lower slide rail 21. At the same time, the first motor 22 drives the lower slide rail 21 to rotate, rotating the horizontal plate 41 of the lower slide rail 21 by ninety degrees. This allows the insertion position of the horizontal plate 41 and the vertical plate 4 to be in the same direction, facilitating the insertion and removal of the horizontal plate 41 and the vertical plate 4. After the horizontal plate 41 rotates to be perpendicular to the vertical plate 4, the second electric push rod pushes the upper slide rail 23 upward. When the extended end of push rod 26 retracts, the horizontal plate 41 and the vertical plate 4 remain on the same plane. The first electric push rod 24 can move the skateboard frame 25 and the top frame 272, thus clamping the horizontal plate 41 and the vertical plate 4 according to their thickness. The upper and lower parts of the clamping assembly 2 do not interfere with each other due to the concave shape of the skateboard frame 25. The third motor 35 drives the gear 36 to rotate, meshing with the half-gear 36 on the outer side of the merged upper ring 37 and lower ring 38, causing the internal rotating ring 311 and welding head 313 to rotate. The welding head 313 performs annular welding around the joint of the horizontal plate 41 and the vertical plate 4. The lower ring 38 inside the base 34 can be driven to rotate, thus avoiding interference with the lower part of the clamping assembly 2 as the first motor 22 moves. The rotation aligns the horizontal plate 41 and the vertical plate 4. The bidirectional electric push rod 29 on the outside of the clamping frame 27 drives the connecting block 210 to move. When the right-angle plate 212 is placed at both ends of the horizontal plate 41, it simultaneously drives the two sets of lower rings 38 and the sliding frame 31 to slide along the sliding groove 12, ensuring that the lower ring 38 can merge with the upper ring 37, thus completing the annular rotation welding. The second motor 33 drives the third bidirectional screw 32 to rotate. The base 34 cooperates with the third bidirectional screw 32 to slide along the inside of the sliding frame 31, simultaneously driving the lower ring 38 to move. Adjustments are made according to the length of the vertical plate 4. During this process, the electric bidirectional telescopic plate 315 simultaneously adjusts the position of the two upper rings 37 according to the length of the vertical plate 4, keeping the upper ring 37 and the lower ring 38 on the same vertical line.By contacting the outer side of the vertical plate 4 with the contact plate 316, the position of the sliding plate 317 inside the top frame 314 is adjusted according to the length of the horizontal plate 41, thereby adjusting the position of the upper ring 37. The upper ring 37 and the lower ring 38 are always on the same vertical line. The welding head 313 is moved by the fourth electric push rod 312 inside the rotating ring 311, which can move closer to the joint position of the horizontal plate 41 and the vertical plate 4, thus facilitating welding.

[0033] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0034] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0035] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. An automatic welding and forming device for fire door frames, characterized in that, include: Welding table (1), the top of the welding table (1) is provided with a clamping assembly (2), the clamping assembly (2) is divided into upper and lower parts, the upper part of the clamping assembly (2) clamps vertical plates (4) on both sides, and the lower part of the clamping assembly (2) clamps horizontal plates (41) on both sides. The two horizontal plates (41) and the two vertical plates (4) are combined to form a fire door frame, and both ends of the horizontal plates (41) and the vertical plates (4) are provided with inclined surfaces; The clamping assembly (2) includes a lower slide rail (21), an upper slide rail (23) is provided on the upper part of the lower slide rail (21), and two clamping frames (27) are symmetrically provided on the top of the upper slide rail (23) and the bottom of the lower slide rail (21). The welding assembly (3) includes a sliding frame (31), which has two sets. The two sets of sliding frames (31) are symmetrically slidably installed on the surface of the welding table (1). The sliding frame (31) is symmetrically slidably connected to two bases (34), and a fixing plate (310) is rotatably installed on the top of the base (34). A lower ring (38) is fixed on the top of the fixing plate (310), and an upper ring (37) is provided on the top of the lower ring (38). The upper ring (37) and the lower ring (38) are combined into a complete ring. Welding heads (313) are installed inside the upper ring (37) and the lower ring (38).

2. The automatic welding and forming device for a fire door frame according to claim 1, characterized in that, The clamping assembly (2) further includes: A first bidirectional screw (28) and a second bidirectional screw (213) are rotatably mounted inside the lower slide rail (21), and a second bidirectional screw (213) is rotatably mounted inside the upper slide rail (23). Two screw blocks (275) are threaded onto the surfaces of both the first bidirectional screw (28) and the second bidirectional screw (213), and the screw blocks (275) are fixedly connected to the clamping frame (27). Among them, the outer ends of the upper slide rail (23) and the lower slide rail (21) are fixed with drive motors corresponding to the positions of the first bidirectional screw (28) and the second bidirectional screw (213), and the first bidirectional screw (28) and the second bidirectional screw (213) are fixedly connected to the output end of the drive motor.

3. The automatic welding and forming device for fire door frames according to claim 2, characterized in that, The clamping frame (27) includes a clamping frame (271), a clamping plate (273) is provided on the outer side of the clamping frame (271), a top frame (272) is provided on the side of the clamping frame (271) near the upper slide rail (23), the end of the clamping frame (271) away from the top frame (272) is fixed with a screw block (275), and the clamping plate (273) and the top frame (272) are slidably inserted into the bottom and top of the clamping frame (271) respectively by inserting rods, the inner side of the clamping plate (273) and the clamping frame (271) are pressed against the sides of the horizontal plate (41) and the vertical plate (4), and the clamping frame (271) and the top frame (272) are pressed against the top and bottom of the horizontal plate (41) and the vertical plate (4); The top frame (272) and clamping plate (273) are fixed with a second spring (274) at the position where they are inserted into the clamping frame (271).

4. The automatic welding and forming device for a fire door frame according to claim 3, characterized in that, Two sets of clamping frames (271) of the lower slide rail (21) are fixed with bidirectional electric push rods (29) on the outside, and two extended ends of the bidirectional electric push rods (29) are fixed with connecting blocks (210). The bottom of the connecting blocks (210) is fixedly connected to the base (34). A third electric push rod (211) is fixed inside the connecting blocks (210), and a right angle plate (212) is fixed at the extended end of the third electric push rod (211). The right-angle plate (212) contacts the outer side of the joint between the horizontal plate (41) and the vertical plate (4).

5. The automatic welding and forming device for a fire door frame according to claim 4, characterized in that, The lower slide rail (21) and the upper slide rail (23) are fixed with a first electric push rod (24) at both ends, and the extended end of the first electric push rod (24) is fixed with a slide frame (25). The top frame (272) is slidably sleeved on the slide frame (25). The slide frames (25) of the lower slide rail (21) and the upper slide rail (23) are both concave plates. The two sets of skateboard frames (25) are staggered, and a groove is provided in the middle of the two sets of skateboard frames (25).

6. The automatic welding and forming device for a fire door frame according to claim 5, characterized in that, The welding table (1) is fixed with a first motor (22) at the bottom of the middle of the lower slide rail (21), and the output end of the first motor (22) is fixedly connected to the lower slide rail (21). A second electric push rod (26) is fixed in the middle groove of the slide frame (25) of the lower slide rail (21), and the extended end of the second electric push rod (26) is rotatably connected to the middle groove of the slide frame (25) of the upper slide rail (23).

7. The automatic welding and forming device for a fire door frame according to claim 6, characterized in that, The welding assembly (3) also includes: The third motor (35), gear (36), half gear ring (39), and rotating ring (311) are mounted on the inner rings of the upper ring (37) and the lower ring (38). The half gear (36) is fixed on the outer side of the half gear ring (39). The two rotating rings (311) and the two half gears (36) merge into a circular ring on the upper ring (37) and the lower ring (38). The third motor (35) is fixed on the surface of the fixing plate (310), and the gear (36) is fixed at the output end of the third motor (35). The gear (36) meshes with the half gear (36). The base (34) contains a motor that drives the fixed plate (310) to rotate.

8. The automatic welding and forming device for a fire door frame according to claim 7, characterized in that, The slide frame (31) is rotatably mounted with a third bidirectional screw (32), and the two bases (34) are threaded onto the surface of the third bidirectional screw (32). The outer end of the slide frame (31) is fixed with a second motor (33), and the output end of the second motor (33) is fixedly connected to the third bidirectional screw (32). The fourth electric push rod (312) is fixed on the surface of the rotating ring (311), and the extended end of the fourth electric push rod (312) is fixedly connected to the welding head (313).

9. The automatic welding and forming device for a fire door frame according to claim 8, characterized in that, Two symmetrical grooves (12) are provided on the surface of the welding table (1), and the bottom of the sliding frame (31) slides along the inside of the groove (12). A first spring (13) is fixed at both ends of the groove (12), and the other end of the first spring (13) is fixedly connected to the sliding frame (31).

10. The automatic welding and forming device for a fire door frame according to claim 9, characterized in that: The top of the upper slide rail (23) is fixed with a top frame (314), and two slide plates (317) are symmetrically slidably connected inside the top frame (314). An electric bidirectional telescopic plate (315) is fixed inside the slide plate (317), and the two extended ends of the electric bidirectional telescopic plate (315) are fixedly connected to the upper rings (37) at both ends. A third spring (317) is fixed at both ends of the top frame (314), and the other end of the third spring (317) is fixedly connected to the slide plate (317). The electric bidirectional telescopic plate (315) has contact plates (316) fixed at both ends of its receiving end, and the contact plates (316) are in contact with the outer side of the vertical plate (4).

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