Civil air defense door frame welding frame and welding method thereof

Abstract

The civil air defense door frame welding frame comprises a base, supporting rods are fixedly connected to the four corners of the top end of the base, and a bearing plate is connected to the upper end faces of the multiple supporting rods; a first length direction welding frame mechanism, a first width direction welding frame mechanism and a second length direction welding frame mechanism are arranged on the upper end face of the bearing plate, and a mechanism is welded in the second width direction; the civil air defense door frame welding frame has the beneficial effects that the civil air defense door frame welding frame is provided with a first supporting rail frame and a second supporting rail frame on the first length direction welding frame mechanism and the first width direction welding frame mechanism; the functionality of the door frame welding frame can be effectively improved, steel plates of different sizes can be welded, and the problem that various door frame welding frames of different sizes occupy space is solved.

Description

Technical Field

[0001] The invention relates to the technical field of civil air defense door welding devices, and in particular to a civil air defense door frame welding frame and a welding method thereof. Background Art

[0002] During the production process of some civil air defense doors, four strip-shaped steel plates need to be welded into a frame shape; in the prior art, the sizes of the welded steel plates are all uniform, and steel plates of various sizes cannot be welded, resulting in a relatively single function of the door frame welding frame. Moreover, when placing the steel plates, manual adjustment of the clamping plates is required, which reduces the work progress; in order to solve the above problems, the present invention proposes a civil air defense door frame welding frame and a welding method thereof. Summary of the invention

[0003] (1) Technical issues to be resolved The purpose of the present invention is to overcome the deficiencies of the prior art, meet actual needs, and provide a civil air defense door frame welding frame and a welding method thereof to solve the above-mentioned technical problems.

[0004] (2) Technical solution In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: A welding frame for a civil air defense door frame comprises a base, wherein the four corners of the top end of the base are fixedly connected with support rods, the upper end surfaces of the plurality of support rods are connected with a bearing plate, the upper end surface of the bearing plate is provided with a first length direction welding frame mechanism, a first width direction welding frame mechanism, a second length direction welding frame mechanism, and a second width direction welding frame mechanism; the lower end surface of the bearing plate is provided with a first measuring mechanism and a second measuring mechanism.

[0005] Furthermore, the first length direction welding frame mechanism includes a motor fixedly connected to the middle of the top end of the base, the output end of the motor is connected to a spiral rod, the lower end of the spiral rod is meshed with a transmission disk block, a spiral hole is opened in the middle of the transmission disk block, the spiral hole is meshed with the spiral pattern of the spiral rod, the upper end face of the transmission disk block is annularly opened with a rotating groove at an equal angle, the inside of the rotating groove is connected to a first transmission plate through a first fixed shaft, the upper part of the first transmission plate is connected to a first rotating shell through a second fixed shaft, the upper end face of the first rotating shell is fixedly connected to a first movable plate, both sides of the first movable plate are fixedly connected to first T-shaped plates, the first T-shaped plate is slidably matched with T-shaped slots, and the T-shaped slots are opened on both sides of the bearing plate along the length direction.

[0006] Furthermore, the upper end surface of the first movable plate is connected to a first supporting rail frame, and the upper end surfaces of the first supporting rail frame are slidably matched with the first H-shaped plate and the second H-shaped plate, a side surface of the first H-shaped plate is connected to a second rotating shell, the second rotating shell is connected to the first unfolding plate through a third fixed shaft, one side of the first unfolding plate is connected to a through opening opened inside the first fixed plate through a fourth fixed shaft, both sides of the lower part of the first fixed plate are fixedly connected to the grooves of the supporting plate along the length direction, a side surface of the second H-shaped plate is connected to a third rotating shell, the third rotating shell is connected to the second unfolding plate through a fifth fixed shaft, one side of the second unfolding plate is connected to the through opening through a sixth fixed shaft, and the structures of the first length direction welding frame mechanism and the second length direction welding frame mechanism are the same.

[0007] Furthermore, the first width direction welding frame mechanism includes a second transmission plate, which is connected to the inside of the rotating groove through a seventh fixed shaft, and the upper part of the second transmission plate is connected to a fourth rotating shell through an eighth fixed shaft, and the upper end surface of the fourth rotating shell is connected to a second movable plate, and second T-shaped plates are fixedly connected on both sides of the second movable plate, and the second T-shaped plate is slidably matched with a second T-shaped slot, and the second T-shaped slot is opened on both sides of the supporting plate along the width direction.

[0008] Furthermore, the upper end surface of the second movable plate is connected to a second supporting rail frame, and the upper end surface of the second supporting rail frame is slidably matched with a third H-shaped plate and a fourth H-shaped plate, and a side surface of the third H-shaped plate is fixedly connected to a fifth rotating shell, and the fifth rotating shell is connected to a third unfolding plate through a ninth fixed shaft, and one side of the third unfolding plate is connected to a second through-hole opened inside the second fixed plate through a tenth fixed shaft, and both sides of the lower part of the second fixed plate are fixedly connected to the grooves of the supporting plate along the width direction, and a side surface of the fourth H-shaped plate is connected to a sixth rotating shell, and the sixth rotating shell is connected to the fourth unfolding plate through an eleventh fixed shaft, and one side of the fourth unfolding plate is rotatably connected to the second through-hole through a twelfth fixed shaft, and the structures of the first width direction welding frame mechanism and the second width direction welding frame mechanism are the same.

[0009] Furthermore, the first measuring mechanism includes a first support block and a second support block fixedly connected to both sides of the lower end surface of the first movable plate, a side surface of the first support block is connected to a first sizing rod, an outer side of one end of the first sizing rod is sleeved with a first sliding sleeve, a first abutment plate is fixedly connected to the lower part of the outer ring surface of the first sliding sleeve, and a side surface of the second support block is fixedly connected to a second sizing rod.

[0010] Furthermore, the second measuring mechanism includes a third support block and a fourth support block fixedly connected to both sides of the lower end surface of the second movable plate, a side surface of the second support block is connected to a third sizing rod, an outer side of one end of the third sizing rod is sleeved with a second sliding sleeve, a second abutment plate is fixedly connected to the lower part of the outer ring surface of the second sliding sleeve, and a side surface of the fourth support block is fixedly connected to a fourth sizing rod.

[0011] Furthermore, the first size rod and the second size rod are in a cross shape, a side surface of the first abutment plate abuts against an outer side of the third size rod, and a side surface of the second abutment plate abuts against an outer side of the first size rod.

[0012] A method for using a civil air defense door frame welding frame, the specific method steps are as follows: S1, length adjustment: the motor drives the transmission plate block to move upward, so that the first movable plate drives the first support rail frame 27 to move outward, thereby realizing the adjustment of the first support rail frame outward in the length direction, which can effectively allow steel plates of different widths to be placed; S2, width adjustment: through the power of the transmission disk block, the second movable plate drives the second support rail frame 34 to the outer side, thereby realizing the adjustment of the second support rail frame to the outer side in the width direction, which can effectively allow the placement of steel plates of different lengths; S3, support: through the setting of the third unfolding plate, the fourth unfolding plate, the first unfolding plate, and the second unfolding plate, the third H-shaped plate and the fourth H-shaped plate are automatically moved to both sides, and the first H-shaped plate and the second H-shaped plate are automatically moved to both sides, without manual participation, easy and convenient, and speeding up the progress of work; S4, positioning: through the cross setting of the first dimension rod and the third dimension rod, it can be ensured that the first support rail frame and the second support rail frame move outward to avoid excessive or insufficient size; S5. Placement: Place the steel plate on the placement grooves on the first H-shaped plate and the second H-shaped plate and on the placement grooves on the third H-shaped plate and the fourth H-shaped plate, and then fix them to the steel plate with bolts.

[0013] Beneficial effect: In the present invention, by setting up the first length direction welding frame mechanism and the first width direction welding frame mechanism, the door frame welding frame is further improved, and steel plates of different sizes can be welded, so that the functionality of the welding frame is improved, and there is no need to use door frame welding frames of multiple different sizes, thereby avoiding the problem of door frame welding frames of multiple different sizes occupying space.

[0014] In the present invention, by setting the third unfolding plate, the fourth unfolding plate, the first unfolding plate, and the second unfolding plate, the third H-type plate and the fourth H-type plate are automatically moved to one side, and the first H-type plate and the second H-type plate are automatically moved to both sides without manual participation, thereby reducing one step of the work steps, making the work easy and convenient, speeding up the work process, and improving work efficiency.

[0015] In the present invention, by setting the first dimension rod and the third dimension rod, it can be ensured that the first support rail frame and the second support rail frame can effectively avoid the movement distance being too large or too small when moving outward. The size of the first dimension rod and the third dimension rod can be used to check the distance of the outward movement, thereby improving standardization.

[0016] In the present invention, by disposing the first sliding sleeve and the second sliding sleeve, the dimensions on the first dimension rod and the third dimension rod can be accurately checked, thereby avoiding the occurrence of large errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 It is a structural schematic diagram of the transmission disc block of the present invention; Figure 3 is a schematic structural diagram of the first movable plate of the present invention; Figure 4 is a schematic structural diagram of a first unfolding plate of the present invention; Figure 5 is a structural schematic diagram of a second transmission plate of the present invention; Figure 6 is a schematic structural diagram of the second movable plate of the present invention; Figure 7 is a schematic structural diagram of a third unfolding plate of the present invention; Figure 8 It is a partial enlarged view of the first size rod of the present invention.

[0018] The reference numerals are as follows: Base, 11-support rod, 12-bearing plate, 121-T-slot, 122-second T-slot, 2-first length direction welding frame mechanism, 21-motor, 22-screw rod, 23-transmission disk block, 231-screw hole, 232-rotation groove, 24-first transmission plate, 25-first rotating shell, 26-first movable plate, 261-first T-plate, 27-first support rail frame, 28-first H-plate, 281-second rotating shell, 282-first unfolding plate, 283-first fixed plate, 284-through mouth, 29-second H-plate, 291-third rotating shell, 292-second unfolding plate, 3-first width direction welding frame mechanism, 31-second transmission plate, 32-fourth rotating shell, 33-second movable plate, 33 1-second T-type plate, 34-second supporting rail frame, 35-third H-type plate, 351-fifth rotating shell, 352-third unfolding plate, 353-second fixed plate, 354-second through port, 36-fourth H-type plate, 361-sixth rotating shell, 362-fourth unfolding plate, 4-second length direction welding frame mechanism, 5-second width direction welding mechanism, 6-first measuring mechanism, 61-first support block, 611-first size rod, 62-second support block, 621-second size rod, 63-first sliding sleeve, 64-first abutment plate, 7-second measuring mechanism, 71-second support block, 711-third size rod, 72-fourth support block, 721-fourth size rod, 73-second sliding sleeve, 74-second abutment plate. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-8 The present invention is further described with examples: A welding frame for a civil air defense door frame comprises a base 1, wherein support rods 11 are fixedly connected at the four corners of the top end of the base 1, and a bearing plate 12 is connected to the upper end surfaces of the plurality of support rods 11, and the upper end surfaces of the bearing plate 12 are provided with a first length direction welding frame mechanism 2, a first width direction welding frame mechanism 3, a second length direction welding frame mechanism 4, and a second width direction welding frame mechanism 5; and a first measuring mechanism 6 and a second measuring mechanism 7 are provided on the lower end surface of the bearing plate 12.

[0020] In this embodiment, the first length direction welding frame mechanism 2 includes a motor 21 fixedly connected to the middle of the top end of the base 1, the output end of the motor 21 is connected to a spiral rod 22, the lower end of the spiral rod 22 is meshed with a transmission disk block 23, a spiral hole 231 is provided in the middle of the transmission disk block 23, the spiral hole 231 is meshed with the spiral pattern of the spiral rod 22, and a rotating groove 232 is provided in an equiangular ring on the upper end surface of the transmission disk block 23, a first transmission plate 24 is connected to the inside of the rotating groove 232 through a first fixed shaft, the upper part of the first transmission plate 24 is connected to a first rotating shell 25 through a second fixed shaft, the upper end surface of the first rotating shell 25 is fixedly connected to a first movable plate 26, both sides of the first movable plate 26 are fixedly connected to first T-plates 261, the first T-plate 261 is slidably matched with T-slots 121, and the T-slots 121 are provided on both sides of the bearing plate 12 along the length direction. The starting motor 21 drives the spiral rod 22 to engage with the inside of the spiral groove 232, so that the transmission disk block 23 is forced to move upward. First, the first transmission plate 24 on the first length direction welding frame mechanism 2 and the second length direction welding frame mechanism 4 is forced to resist upward against the first rotating shell 25, and the first rotating shell 25 is transmitted to the first movable plate 26. The first movable plate 26 is forced to slide inside the T-slot 121 through the first T-plate 261. The arrangement of the first T-plate 261 and the T-slot 121 is conducive to ensuring that the first movable plate 26 moves in the horizontal direction.

[0021] In this embodiment, the upper end surface of the first movable plate 26 is connected to the first supporting rail frame 27, and the upper end surface of the first supporting rail frame 27 is slidably matched with the first H-shaped plate 28 and the second H-shaped plate 29. The side surface of the first H-shaped plate 28 is connected to the second rotating shell 281, and the second rotating shell 281 is connected to the first unfolding plate 282 through a third fixed axis. One side of the first unfolding plate 282 is connected to the through opening 284 opened on the first fixed plate 283 through a fourth fixed axis. Both sides of the lower part of the first fixed plate 283 are fixedly connected to the grooves of the supporting plate 12 along the length direction. The side surface of the second H-shaped plate 29 is connected to the third rotating shell 291, and the third rotating shell 291 is connected to the second unfolding plate 292 through a fifth fixed axis. One side of the second unfolding plate 292 is connected to the through opening 284 through a sixth fixed axis. The structures of the first length direction welding frame mechanism 2 and the second length direction welding frame mechanism 4 are the same. The first moving plate 26 drives the first supporting rail 27 to move to one side, wherein the first supporting rail 27 drives the first H-shaped plate 28 and the second H-shaped plate 29 to move to one side. During the movement, the first H-shaped plate 28 and the second H-shaped plate 29 are pressed against the first unfolding plate 282 and the second unfolding plate 292 by the interference of the second rotating shell 281 and the third rotating shell 291, so that the two sides of the first unfolding plate 282 rotate on the outer sides of the third fixed axis and the fourth fixed axis, and the two sides of the second unfolding plate 292 rotate on the fifth fixed axis and the sixth fixed axis. On the outer side, the first unfolding plate 282 and the second unfolding plate 292 are unfolded outward. During the unfolding, the first H-shaped plate 28 and the second H-shaped plate 291 are subjected to the unfolding force of the first unfolding plate 282 and the second unfolding plate 292, so that the first H-shaped plate 28 slides to one side on the upper part of the first support rail frame 27, and the second H-shaped plate 291 slides to the other side on the upper part of the first support rail frame 27. Through the setting of the first support rail frame 27, the steel plates of different sizes are effectively placed in the placement grooves on the third H-shaped plate 35 and the fourth H-shaped plate 36. Through the setting of the first length direction welding frame mechanism 2 and the first width direction welding frame mechanism 3, the door frame welding frame is further improved, and steel plates of different sizes can be welded, so that the functionality of the welding frame is improved, and there is no need to use a variety of door frame welding frames of different sizes, thereby avoiding the problem of a variety of door frame welding frames of different sizes occupying space.

[0022] In this embodiment, the first width direction welding frame mechanism 3 includes a second transmission plate 31, which is connected to the inside of the rotating groove 232 through a seventh fixed axis, and the upper part of the second transmission plate 31 is connected to a fourth rotating shell 32 through an eighth fixed axis, and the upper end surface of the fourth rotating shell 32 is connected to a second movable plate 33, and the second movable plate 33 is fixedly connected to second T-plates 331 on both sides, and the second T-plates 331 are slidably matched with second T-slots 122, and the second T-slots 122 are opened on both sides of the supporting plate 12 along the width direction. The second transmission plate 31 is subjected to the force of the rotating groove 232 on the transmission disc block 23, and the upper part of the second transmission plate 31 is pressed upward against the fourth rotating shell 32. The fourth rotating shell 32 is subjected to the force and transmitted to the second movable plate 33. The second movable plate 33 is subjected to the force and slides inside the second T-shaped groove 122 through the second T-shaped plate 331, so that the second movable plate 33 moves to one side and drives the second supporting rail frame 34 to one side. The second supporting rail frame 34 drives the third H-shaped plate 35 and the fourth H-shaped plate 36 to move to one side, so that steel plates of different lengths can be effectively placed in the placement grooves on the first H-shaped plate 28 and the second H-shaped plate 291.

[0023] In this embodiment, the upper end surface of the second movable plate 33 is connected to the second supporting rail frame 34, and the upper end surface of the second supporting rail frame 34 is slidably matched with the third H-shaped plate 35 and the fourth H-shaped plate 36, and the side surface of the third H-shaped plate 35 is fixedly connected to the fifth rotating shell 351, and the fifth rotating shell 351 is connected to the third unfolding plate 352 through the ninth fixed axis, and one side of the third unfolding plate 352 is connected to the second through hole 354 opened on the inside of the second fixed plate 353 through the tenth fixed axis, and the lower two sides of the second fixed plate 353 are fixedly connected to the grooves of the supporting plate 12 along the width direction, and the side surface of the fourth H-shaped plate 36 is connected to the sixth rotating shell 361, and the sixth rotating shell 361 is connected to the fourth unfolding plate 362 through the eleventh fixed axis, and one side of the fourth unfolding plate 362 is rotatably connected in the second through hole 354 through the twelfth fixed axis, and the first width direction welding frame mechanism 3 and the second width direction welding mechanism 5 have the same structure. During the movement of the third H-shaped plate 35 and the fourth H-shaped plate 36, the fifth rotating shell 351 and the sixth rotating shell 361 simultaneously press against one side of the third unfolding plate 352 and the fourth unfolding plate 362, so that the third unfolding plate 352 is rotated on the outside of the ninth fixed axis and the tenth fixed axis, and the fourth unfolding plate 362 is rotated on the outside of the eleventh fixed axis and the twelfth fixed axis, thereby realizing the outward expansion of the third unfolding plate 352 and the fourth unfolding plate 362. During the expansion of the third unfolding plate 352 and the fourth unfolding plate 362, the third H-shaped plate 35 is driven to slide to one side on the upper part of the second support rail frame 34, and the third unfolding plate 352 is rotated on the outside of the ninth fixed axis and the tenth fixed axis. The four H-shaped plates 36 slide to the other side on the upper part of the second support rail frame 34. Through the arrangement of the second support rail frame 34, steel plates of different lengths can be effectively placed in the placement grooves on the first H-shaped plate 28 and the second H-shaped plate 291. Through the arrangement of the third unfolding plate 352, the fourth unfolding plate 362, the first unfolding plate 282, and the second unfolding plate 292, the third H-shaped plate 35 and the fourth H-shaped plate 36 are automatically moved to one side, and the first H-shaped plate 28 and the second H-shaped plate 291 are automatically moved to both sides without manual intervention, which reduces one step of the work steps, makes the work easy and convenient, speeds up the work process, and improves work efficiency.

[0024] In this embodiment, the first measuring mechanism 6 includes a first support block 61 and a second support block 62 fixedly connected to both sides of the lower end surface of the first movable plate 26, a first dimension rod 611 is connected to one side of the first support block 61, a first sliding sleeve 63 is sleeved on the outer side of one end of the first dimension rod 611, a first stop plate 64 is fixedly connected to the lower part of the outer ring surface of the first sliding sleeve 63, and a second dimension rod 621 is fixedly connected to one side of the second support block 62. Through the arrangement of the first dimension rod 611 and the third dimension rod 711, it can be ensured that the first support rail frame 27 and the second support rail frame 34 can effectively avoid the moving distance being too large or too small when moving outward, and the distance of outward movement can be checked through the sizes of the first dimension rod 611 and the third dimension rod 711, thereby improving standardization.

[0025] In this embodiment, the second measuring mechanism 7 includes a third support block 71 and a fourth support block 72 fixedly connected to both sides of the lower end surface of the second movable plate 33, a side surface of the third support block 71 is connected to a third size rod 711, a second sliding sleeve 73 is sleeved on the outer side of one end of the third size rod 711, a second abutment plate 74 is fixedly connected to the lower part of the outer ring surface of the second sliding sleeve 73, and a side surface of the fourth support block 72 is fixedly connected to a fourth size rod 721. The first support block 61 and the second support block 62 are driven to move to one side by the first support rail 27, and the first support block 61 is driven to move to one side by the first size rod 611 by force, and the second support rail 34 drives the third support block 71 and the fourth support block 72 to move to one side, and the third support block 71 is driven to move to one side by the third size rod 711 by force. Because the first size rod 611 and the third size rod 711 are in a cross shape, during the cross movement of the first size rod 611 and the third size rod 711, the outer side of the first size rod 611 is pressed against one side of the second abutment plate 74, and the abutment force of the second abutment plate 74 is transmitted to the second sliding sleeve 73, and the second sliding sleeve 73 slides to one side on the outer side of the third size rod 711, and the outer side of the third size rod 711 is pressed against one side of the first abutment plate 64, so that the power of the stressed first abutment plate 64 is transmitted to the first sliding sleeve 63, and the first sliding sleeve 63 is forced to slide to one side of the first size rod 611 (such as Figure 8 As shown), through the transmission force of the first sizing rod 611 and the third sizing rod 711, the first sliding sleeve 63 and the second sliding sleeve 73 slide to the position where the size of the steel plate is just measured, and the motor 21 can be stopped.

[0026] In this embodiment, the first size rod 611 and the second size rod 621 are in a cross shape, one side of the first abutment plate 64 abuts against the outside of the third size rod 711, and one side of the second abutment plate 74 abuts against the outside of the first size rod 611. By setting the first sliding sleeve 63 and the second sliding sleeve 73, the sizes of the first size rod 611 and the third size rod 711 can be accurately checked to avoid large errors.

[0027] A method for using a civil air defense door frame welding frame, the specific method steps are as follows: S1. Length adjustment: The motor 21 drives the transmission plate block 23 to move upward, so that the first movable plate 26 drives the first support rail frame 27 to move outward, thereby realizing the adjustment of the first support rail frame 27 outward in the length direction, which can effectively allow steel plates of different widths to be placed; S2, width adjustment: through the power of the transmission plate block 23, the second movable plate 33 drives the second support rail frame 34 to the outer side, thereby realizing the adjustment of the second support rail frame 34 to the outer side in the width direction, which can effectively allow the steel plates of different lengths to be placed; S3, support: through the arrangement of the third unfolding plate 352, the fourth unfolding plate 362, the first unfolding plate 282, and the second unfolding plate 292, the third H-shaped plate 35 and the fourth H-shaped plate 36 are automatically moved to both sides, and the first H-shaped plate 28 and the second H-shaped plate 291 are automatically moved to both sides, without manual participation, which is easy and convenient, and speeds up the progress of work; S4, positioning: through the cross setting of the first size rod 611 and the third size rod 711, it is ensured that the first support rail frame 27 and the second support rail frame 34 move outward to avoid being too large or too small in size; S5. Placement: Place the steel plate on the placement grooves on the first H-shaped plate 28 and the second H-shaped plate 291 and on the placement grooves on the third H-shaped plate 35 and the fourth H-shaped plate 36, and then fix them to the steel plate with bolts.

[0028] The specific working principle of the present invention includes the following process: First, before placing the steel plate, the size of the steel plate is measured. After the measurement, the motor 21 is started to drive the spiral rod 22 to engage with the inside of the spiral groove 232, so that the transmission plate block 23 is forced to move upward. The power of the transmission plate 23 is transmitted to the first length direction welding frame mechanism 2, the first width direction welding frame mechanism 3, the second length direction welding frame mechanism 4, and the second width direction welding frame mechanism 5. First, the first transmission plate 24 on the first length direction welding frame mechanism 2 and the second length direction welding frame mechanism 4 is forced to resist upward against the first rotating shell 25, and the first rotating shell 25 is forced to be transmitted to the first moving plate 26, the first movable plate 26 uses the first T-shaped plate 261 to slide inside the T-shaped groove 121. At the same time, the first movable plate 26 drives the first supporting rail frame 27, the first H-shaped plate 28, and the second H-shaped plate 29 to move to one side. During the movement, the first H-shaped plate 28 and the second H-shaped plate 29 are subjected to the interference of the second rotating shell 281 and the third rotating shell 291, so that the first unfolding plate 282 and the second unfolding plate 292 are unfolded outward. During the unfolding, the first H-shaped plate 28 slides to one side on the upper part of the first supporting rail frame 27, and the second H-shaped plate 29 slides to the other side on the upper part of the first supporting rail frame 27.

[0029] Secondly, the second transmission plate 31 on the first width direction welding frame mechanism 3 and the second width direction welding frame mechanism 5 is subjected to the force of the rotating groove 232 on the transmission disk block 23, and the upper part of the second transmission plate 31 is pressed upward against the fourth rotating shell 32, and the fourth rotating shell 32 is subjected to the force to be transmitted to the second movable plate 33, and the second movable plate 33 is subjected to the force to slide inside the second T-shaped groove 122 through the second T-shaped plate 331, so that the second movable plate 33, the second support rail frame 34, the third H-shaped plate 35, and the fourth H-shaped plate 36 move to one side, and the third H-shaped plate 35 and the fourth H-shaped plate 36 are subjected to the force to be transmitted to the second movable plate 33. During the movement of the third and fourth unfolding plates 352 and 36, the fifth rotating shell 351 and the sixth rotating shell 361 are pressed to expand the third and fourth unfolding plates 352 and 362 outwards. During the expansion of the third and fourth unfolding plates 352 and 362, the third H-shaped plate 35 is driven to slide to one side on the upper part of the second supporting rail frame 34, and the fourth H-shaped plate 36 is driven to slide to the other side on the upper part of the second supporting rail frame 34, thereby automatically adjusting the required size of the steel plate, and also automatically adjusting the positions of the third and fourth H-shaped plates 35, 36, the first and second H-shaped plates 28 and 29.

[0030] When the first support rail 27 and the second support rail 34 are unfolded, firstly, the first support rail 27 drives the first support block 61 and the second support block 62 to move to one side, and the first support block 61 is driven by the first size rod 611 to move to one side. Secondly, the second support rail 34 drives the third support block 71 and the fourth support block 72 to move to one side, and the third support block 71 is driven by the third size rod 711 to move to one side. Because the first size rod 611 and the third size rod 711 are in a cross shape, the outer side of the first size rod 611 is pressed against one side of the second stop plate 74, so that the second sliding sleeve 73 slides to one side. On the outside of the third sizing rod 711, the outside of the third sizing rod 711 presses against one side of the first abutment plate 64, allowing the first sliding sleeve 63 to slide to one side of the first sizing rod 611. Through the transmission force of the first sizing rod 611 and the third sizing rod 711, the first sliding sleeve 63 and the second sliding sleeve 73 slide to the position where the size of the steel plate is just measured, and the motor 21 can be stopped. The measured steel plate can be placed on the placement grooves on the first H-shaped plate 28 and the second H-shaped plate 29 and on the placement grooves on the third H-shaped plate 35 and the fourth H-shaped plate 36, and then fixed to the steel plate with bolts, and the steel plate welding work can be started.

[0031] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A civil air defense door frame welding frame, comprising a base (1), characterized in that: The four corners of the top of the base (1) are fixedly connected to support rods (11); the upper end surfaces of the plurality of support rods (11) are connected to a bearing plate (12); the upper end surfaces of the bearing plate (12) are provided with a first length direction welding frame mechanism (2), a first width direction welding frame mechanism (3), a second length direction welding frame mechanism (4), and a second width direction welding frame mechanism (5); the lower end surface of the bearing plate (12) is provided with a first measuring mechanism (6) and a second measuring mechanism (7); the first length direction welding frame mechanism (2) comprises a motor (21) fixedly connected to the middle of the top of the base (1); the output end of the motor (21) is connected to a screw rod (22); the lower end of the screw rod (22) is meshed with a transmission disk block (23); the transmission disk A spiral hole (231) is provided in the middle of the block (23), the interior of the spiral hole (231) meshes with the spiral pattern of the spiral rod (22), the upper end surface of the transmission disk block (23) is provided with a rotating groove (232) in an equiangular ring shape, the interior of the rotating groove (232) is connected to a first transmission plate (24) via a first fixed shaft, the upper part of the first transmission plate (24) is connected to a first rotating shell (25) via a second fixed shaft, the upper end surface of the first rotating shell (25) is fixedly connected to a first movable plate (26), both sides of the first movable plate (26) are fixedly connected to first T-shaped plates (261), the first T-shaped plates (261) are slidably matched with T-shaped slots (121), and the T-shaped slots (121) are provided on both sides of the bearing plate (12) along the length direction.

2. A welding frame for a civil air defense door as claimed in claim 1, characterized in that: The upper end surface of the first movable plate (26) is connected to a first supporting rail frame (27), and the upper end surface of the first supporting rail frame (27) is slidably matched with a first H-shaped plate (28) and a second H-shaped plate (29), one side of the first H-shaped plate (28) is connected to a second rotating shell (281), the second rotating shell (281) is connected to a first unfolding plate (282) via a third fixed shaft, and one side of the first unfolding plate (282) is connected to a through opening (283) provided inside the first fixed plate (283) via a fourth fixed shaft. 84), the lower two sides of the first fixed plate (283) are fixedly connected to the slots of the bearing plate (12) along the length direction, one side of the second H-shaped plate (29) is connected to the third rotating shell (291), the third rotating shell (291) is connected to the second unfolding plate (292) via a fifth fixed axis, one side of the second unfolding plate (292) is connected to the through opening (284) via a sixth fixed axis, and the first length direction welding frame mechanism (2) and the second length direction welding frame mechanism (4) have the same structure.

3. A welding frame for a civil air defense door as claimed in claim 2, characterized in that: The first width direction welding frame mechanism (3) comprises a second transmission plate (31), the second transmission plate (31) being connected to the inside of the rotating groove (232) via a seventh fixed shaft, and the upper part of the second transmission plate (31) being connected to a fourth rotating shell (32) via an eighth fixed shaft, the upper end surface of the fourth rotating shell (32) being connected to a second movable plate (33), the second movable plate (33) being fixedly connected to second T-shaped plates (331) on both sides, the second T-shaped plates (331) being slidably matched with second T-shaped slots (122), the second T-shaped slots (122) being provided on both sides of the bearing plate (12) along the width direction.

4. A welding frame for a civil air defense door as claimed in claim 3, characterized in that: The upper end surface of the second movable plate (33) is connected to a second supporting rail frame (34), and the upper end surface of the second supporting rail frame (34) is slidably matched with a third H-shaped plate (35) and a fourth H-shaped plate (36), and a side surface of the third H-shaped plate (35) is fixedly connected to a fifth rotating shell (351), and the fifth rotating shell (351) is connected to a third unfolding plate (352) via a ninth fixed axis, and one side of the third unfolding plate (352) is connected to a second opening (352) provided inside the second fixed plate (353) via a tenth fixed axis. 4), the lower sides of the second fixed plate (353) are fixedly connected to the slots of the bearing plate (12) along the width direction, one side of the fourth H-shaped plate (36) is connected to a sixth rotating shell (361), the sixth rotating shell (361) is connected to a fourth unfolding plate (362) via an eleventh fixed axis, one side of the fourth unfolding plate (362) is rotatably connected to the second opening (354) via a twelfth fixed axis, and the first width direction welding frame mechanism (3) and the second width direction welding frame mechanism (5) have the same structure.

5. A welding frame for a civil air defense door as claimed in claim 4, characterized in that: The first measuring mechanism (6) comprises a first support block (61) and a second support block (62) fixedly connected to both sides of the lower end surface of the first movable plate (26); a first dimension rod (611) is connected to one side surface of the first support block (61); a first sliding sleeve (63) is sleeved on the outer side of one end of the first dimension rod (611); a first stop plate (64) is fixedly connected to the lower part of the outer ring surface of the first sliding sleeve (63); and a second dimension rod (621) is fixedly connected to one side surface of the second support block (62).

6. A welding frame for a civil air defense door as claimed in claim 5, characterized in that: The second measuring mechanism (7) comprises a third support block (71) and a fourth support block (72) fixedly connected to both sides of the lower end surface of the second movable plate (33); a third dimension rod (711) is connected to one side surface of the third support block (71); a second sliding sleeve (73) is sleeved on the outer side of one end of the third dimension rod (711); a second abutment plate (74) is fixedly connected to the lower part of the outer ring surface of the second sliding sleeve (73); and a fourth dimension rod (721) is fixedly connected to one side surface of the fourth support block (72).

7. A welding frame for a civil air defense door as claimed in claim 6, characterized in that: The first size rod (611) and the second size rod (621) are in a cross shape; one side of the first abutment plate (64) abuts against the outside of the third size rod (711); and one side of the second abutment plate (74) abuts against the outside of the first size rod (611).

8. A welding method using the civil air defense door frame welding frame according to claim 7, characterized in that: The following steps are involved: S1, length adjustment: the motor (21) drives the transmission disk block (23) to move upward, so that the first movable plate (26) drives the first support rail frame (27) to move outward, thereby achieving the adjustment of the first support rail frame (27) outward in the length direction, which can effectively allow steel plates of different widths to be placed; S2, width adjustment: through the power of the transmission disk block (23), the second movable plate (33) drives the second support rail frame (34) to the outer side, thereby realizing the adjustment of the second support rail frame (34) to the outer side in the width direction, which can effectively allow steel plates of different lengths to be placed; S3, support: by setting the third unfolding plate (352), the fourth unfolding plate (362), the first unfolding plate (282), and the second unfolding plate (292), the third H-shaped plate (35) and the fourth H-shaped plate (36) are automatically moved to both sides, and the first H-shaped plate (28) and the second H-shaped plate (29) are automatically moved to both sides; S4, positioning: by means of the cross arrangement of the first dimension rod (611) and the third dimension rod (711), it is possible to ensure that the first support rail frame (27) and the second support rail frame (34) move outward; S5. Placement: Place the steel plate on the placement grooves on the first H-shaped plate (28) and the second H-shaped plate (29) and on the placement grooves on the third H-shaped plate (35) and the fourth H-shaped plate (36), and then fix them to the steel plate with bolts.

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