Welding device for fire fighting equipment production and using method thereof

Abstract

The invention relates to the technical field of production welding, in particular to a welding device for fire fighting equipment production and a using method thereof.The welding device comprises a base, a plurality of supports of an annular structure are arranged on the base, a welding machine is arranged in the middle of every two adjacent supports, gear rings are rotationally arranged on the supports, and first motors are fixedly arranged on the supports; and a first gear for driving the gear ring to rotate is fixedly arranged on a rotating shaft of the first motor. According to the welding device for fire fighting equipment production and the using method thereof, unique gravity sensing design is adopted for the device, when a pipeline penetrates into the support, a system can automatically sense the inclination state of the pipeline, a corresponding motor control signal is triggered through downward movement of the bracket, and the rolling wheels are driven to conduct accurate position adjustment till the pipeline reaches the horizontal state; the process is automatic, symmetrical distribution of the pipelines in the pipe hoop can be guaranteed without manual intervention, it is guaranteed that the lengths of pipe bodies on the two sides of the pipe hoop are evenly distributed, and welding deviation caused by uneven gravity is eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of production welding, and specifically relates to a welding device for fire-fighting equipment production and its use method. Background Art

[0002] As one of the components of fire-fighting equipment, fire-fighting pipes are commonly used in various buildings and are one of the essential public facilities, mainly used for transporting fire-fighting water; during building construction, the length of each section of the fire-fighting pipe is designed, pre-produced in a processing factory, and then transported to the installation site.

[0003] The installation environment is complex. When the pre-designed pipes are actually installed, they cannot be accurately installed at the designated position points, resulting in the ends of some pipes being located at the bottom hole opening positions or at the roof hole opening positions, and the splicing installation of the upper and lower two sections of pipes cannot be achieved at these position points, and the pipes need to be welded and extended.

[0004] There are three major technical pain points in traditional fire-fighting pipe welding operations: First, manual alignment depends on the operator's experience, and often the pipe orifices are misaligned, resulting in uneven welding strength; second, when the pipe clamp holds the pipe, skewing is caused by the difference in the self-weight distribution of the pipe body, affecting the quality of the circumferential weld; third, the existing adjustment device lacks a quality prediction function and cannot detect hidden dangers such as uneven pipe material density in time.

[0005] In view of this, we propose a welding device for fire-fighting equipment production and its use method. Summary of the Invention

[0006] The purpose of the present invention is to provide a welding device for fire-fighting equipment production and its use method to solve the problems of uneven welding strength caused by misalignment of the pipe orifices, skewing caused by the difference in the self-weight distribution of the pipe body, affecting the quality of the circumferential weld, and lack of a quality prediction function as mentioned in the above background art. To achieve the above purpose, the present invention provides the following technical solution: A welding device for fire-fighting equipment production, including a base, on which a number of annular brackets are provided, and a welding machine is provided at the middle position between two adjacent brackets. A toothed ring is rotatably provided on the bracket, and a first motor is fixedly provided on the bracket. A first gear for driving the toothed ring to rotate is fixedly provided on the rotating shaft of the first motor.

[0007] A ring seat is fixedly installed on the side surface of the toothed ring, and screws are rotatably provided on both lateral sides inside the ring seat. The threads on the surface of the screws are opposite threads along the middle position thereof. Pipe clamps for fixing the pipe by being driven to displace are provided on both vertical sides of the inner plate of the ring seat.

[0008] A cross plate is fixedly provided at the bottom of the lower pipe clamp, and brackets are slidably connected to both ends of the cross plate. A first spring for resetting the downward-moving brackets is provided on the cross plate.

[0009] A groove is formed inside the lower pipe clamp, and a roller for pushing the pipe to axially displace is rotatably arranged in the groove. A second motor for driving the roller to rotate is fixedly arranged at the bottom of the lower pipe clamp. Two groups of trigger switches are arranged between the two brackets and the cross plate, and the second motor is started through the trigger switches when the brackets move downward.

[0010] Preferably, a support seat located below the ring seat is fixedly arranged on the base, a connecting rod is slidably connected to the support seat, two conical disks are fixedly arranged on the connecting rod, a push plate is fixedly arranged at the bottom of the bracket, and when the push plate moves downward, the connecting rod is pushed to displace along the conical disk.

[0011] A second spring for pushing the connecting rod to reset is arranged on the support seat.

[0012] Preferably, a second gear and a caliper are respectively rotatably arranged on the connecting rod. When the connecting rod displaces, the caliper is engaged with the toothed ring for locking. When the connecting rod resets, the second gear enters between the toothed ring and the first gear for meshing transmission.

[0013] Preferably, it further includes a wire box placed on the pipe. Pull ropes with hooks are arranged on both sides of the wire box and are wound by torsion springs. A flap is rotatably arranged at the top of the wire box, and a notch for clamping and positioning with the upper pipe clamp is formed on the flap.

[0014] Preferably, the two groups of trigger switches respectively drive the second motor to rotate forward and backward.

[0015] Preferably, a V-shaped guide wheel is arranged at the bottom of the push plate, and the guide wheel is tangent to the inclined surface of the conical disk.

[0016] Preferably, a guide groove is arranged on the inner wall of the ring seat, and both sides of the pipe clamp are embedded in the guide groove for sliding. The clearance fit between the guide groove and the pipe clamp is controlled within 0.1 - 0.3 mm.

[0017] A usage method of a welding device for fire-fighting equipment production includes the following steps: S1. Pass the pipe to be welded through the center of the bracket and make it fall on the lower pipe clamp. When the middle position of the pipe is not aligned with the pipe clamp, the pipe is inclined. Different inclination directions squeeze the brackets on different sides to move downward, and the corresponding trigger switches drive the second motor, so that the roller rotates and pushes the pipe to displace until the pipe is horizontally placed to release the bracket. Then, the pipe is clamped by the pipe clamp. At this time, the pipe orifices of two adjacent pipes are aligned, and then welding can be carried out along the alignment point through a welding machine; S2. When the bracket moves downward, the connecting rod is pushed to displace along the conical disk, so that the caliper is engaged with the toothed ring to lock the rotation function of the pipe clamp. When the pipe is adjusted and the bracket resets, the connecting rod resets synchronously, so that the second gear intervenes between the first gear and the toothed ring. At this time, the first motor can drive the pipe clamp and the pipe to rotate; S3. Hang the draw ropes on both sides on the two ends of the pipeline through hooks. At this time, the torsion spring winding structure inside the wire box pulls the wire box to the middle position of the pipeline. The operator can use the wire box as a punctuation mark to assist in placing the pipe clamp. Moreover, when the pipeline position is adjusted through the gravity distribution of the rollers, when the flap is flipped, the notch should be aligned with the upper pipe clamp. If not aligned, it means that the gravity demarcation point and the length demarcation point of the pipeline are inconsistent, which also means that the mass distribution of the pipe body of the pipeline is uneven.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, the automatic leveling and positioning system: This device adopts a unique gravity sensing design. When the pipeline penetrates into the bracket, the system can automatically sense its inclination state, trigger the corresponding motor control signal through the downward movement of the bracket, and drive the rollers to perform precise position adjustment until the pipeline reaches the horizontal state. This process is completely automated and can ensure the symmetrical distribution of the pipeline in the pipe clamp without manual intervention, ensuring the uniform distribution of the pipe body length on both sides of the pipe clamp and eliminating the welding deviation caused by uneven gravity.

[0019] In the present invention, the intelligent working condition conversion mechanism: There is a precise mechanical interlock system inside the device. During the pipeline adjustment stage, the caliper mechanism will automatically lock the rotation function to prevent external interference. When the leveling is completed, the system can automatically unlock and convert to the rotation drive mode. This adaptive conversion design ensures the operation stability under various working conditions.

[0020] In the present invention, the integrated quality monitoring function: The innovatively designed wire box positioning system not only provides a construction positioning reference but also can intuitively reflect the uniformity of the pipeline mass distribution through the alignment state of the flap notch. When the notch cannot be accurately aligned, it prompts the operator that there may be a problem of uneven pipe material density, realizing the quality prediction during the construction process. Brief Description of the Drawings

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a structural schematic diagram of the wire box and draw ropes of the present invention; Figure 3 is an exploded view of the bracket and ring seat of the present invention; Figure 4 is of the present invention Figure 3 The enlarged view of part A in; Figure 5 is a structural schematic diagram of the bracket and the first motor of the present invention; Figure 6 is an exploded view of the gear ring, first gear, second gear and caliper of the present invention; Figure 7 is an exploded view of the ring seat and pipe clamp of the present invention; Figure 8 For the present invention Figure 7 An enlarged view of part B in the present invention; Figure 9 A three-dimensional structural sectional view of the pipe clamp and the transverse plate of the present invention; Figure 10 For the present invention Figure 9 An enlarged view of part C in the present invention.

[0022] In the figure: 1, base; 2, bracket; 3, welding machine; 4, toothed ring; 5, first motor; 6, ring seat; 7, screw; 8, pipe clamp; 9, transverse plate; 10, bracket; 11, first spring; 12, roller; 13, groove; 14, second motor; 15, trigger switch; 16, support seat; 17, connecting rod; 18, conical disk; 19, push plate; 20, second spring; 21, second gear; 22, caliper; 23, wire box; 24, pulling rope; 25, flap; 26, notch; 27, first gear. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 10 , the present invention provides a technical solution: a welding device for fire-fighting equipment production, including a base 1, on which a plurality of annular brackets 2 are provided, and a welding machine 3 is provided at the midpoint between two adjacent brackets 2. A toothed ring 4 is rotatably provided on the bracket 2, and a first motor 5 is fixedly provided on the bracket 2. A first gear 27 for driving the rotation of the toothed ring 4 is fixedly provided on the rotating shaft of the first motor 5.

[0025] A ring seat 6 is fixedly installed on the side surface of the toothed ring 4, and screws 7 are rotatably provided on both lateral sides inside the ring seat 6. The threads on the surface of the screw 7 are opposite threads along its midpoint. Pipe clamps 8 for fixing pipes by being driven to displace are provided on both vertical sides of the inner plate of the ring seat 6.

[0026] A transverse plate 9 is fixedly provided at the bottom of the lower pipe clamp 8, and brackets 10 are slidably connected to both ends of the transverse plate 9. A first spring 11 for resetting the downward-moving brackets 10 is provided on the transverse plate 9.

[0027] A groove 13 is formed on the inner side of the lower pipe clamp 8, and a roller 12 for pushing the axial displacement of the pipe is rotatably arranged in the groove 13. A second motor 14 for driving the rotation of the roller 12 is fixedly arranged at the bottom of the lower pipe clamp 8. Two sets of trigger switches 15 are arranged between the two brackets 10 and the cross plate 9, and the second motor 14 is started through the trigger switch 15 when the bracket 10 moves downward.

[0028] A support seat 16 located below the ring seat 6 is fixedly arranged on the base 1, and a connecting rod 17 is slidably connected to the support seat 16. Two conical disks 18 are fixedly arranged on the connecting rod 17. A push plate 19 is fixedly arranged at the bottom of the bracket 10, and when the push plate 19 moves downward, the connecting rod 17 is pushed to displace along the conical disk 18.

[0029] A second spring 20 for pushing the connecting rod 17 to reset is arranged on the support seat 16.

[0030] A second gear 21 and a caliper 22 are respectively rotatably arranged on the connecting rod 17. When the connecting rod 17 displaces, the caliper 22 is engaged with the tooth ring 4 for locking. When the connecting rod 17 resets, the second gear 21 enters between the tooth ring 4 and the first gear 27 for meshing transmission.

[0031] It further includes a wire box 23 placed on the pipe. Pulling ropes 24 with hooks are arranged on both sides of the wire box 23 and are wound through torsion springs. A flap 25 is rotatably arranged at the top of the wire box 23, and a notch 26 for engaging and positioning with the upper pipe clamp 8 is formed on the flap 25.

[0032] The two sets of trigger switches 15 respectively drive the second motor 14 to rotate forward and backward.

[0033] In this embodiment, as Figures 1 to 10 shown, a V-shaped guide wheel is arranged at the bottom of the push plate 19, and the guide wheel is tangent to the inclined surface of the conical disk 18. The V-shaped guide wheel converts sliding friction into rolling friction, improving the transmission efficiency of the downward pressure of the push plate 19. The line contact mode between the guide wheel and the inclined surface of the conical disk 18 reduces the wear amount compared with the traditional plane contact.

[0034] In this embodiment, as Figures 1 to 10 shown, a guide groove is arranged on the inner wall of the ring seat 6, and both sides of the pipe clamp 8 are installed in the guide groove to slide. The clearance fit between the guide groove and the pipe clamp 8 is controlled within 0.1 - 0.3 mm to ensure no radial shaking during the clamping process. The double-guide groove structure enables the pipe clamp 8 to be symmetrically stressed, reducing the unilateral deformation amount. The guide groove adopts a detachable insert design, and only local components need to be replaced after wear.

[0035] A usage method of a welding device for fire-fighting equipment production includes the following steps: S1. Insert the pipe to be welded into the center of the bracket 2 so that it rests on the lower pipe clamp 8. When the midpoint of the pipe is not aligned with the pipe clamp 8, the pipe tilts. Different tilting directions squeeze the brackets 10 on different sides to move downward, and drive the second motor 14 through the corresponding trigger switches 15, so that the rollers 12 rotate and push the pipe to displace until the pipe is horizontally placed to release the brackets 10, and then clamp the pipe with the pipe clamp 8. At this time, the pipe orifices of two adjacent pipes are aligned, and then weld along the alignment point with the welding machine 3. In this way, the pipe inside the pipe clamp 8 is automatically adjusted, and the pipe body is evenly distributed along the pipe clamp 8, avoiding the influence of different pipe body lengths on both sides of the pipe clamp 8 on the pipe alignment welding, and also avoiding the influence of different weights on both sides on the pipe body deformation difference and affecting the welding quality; S2. When the bracket 10 moves downward, it pushes the connecting rod 17 to displace along the conical disk 18, so that the caliper 22 engages with the tooth ring 4 to lock the rotation function of the pipe clamp 8. When the pipe adjustment is completed and the bracket 10 is reset, the connecting rod 17 is reset synchronously, so that the second gear 21 intervenes between the first gear 27 and the tooth ring 4. At this time, the first motor 5 can drive the pipe clamp 8 and the pipe to rotate. In this way, when the pipe position is incorrect, the pipe clamp 8 will not move to affect the pipe adjustment, improving the adjustment stability; S3. Hang the two side stay ropes 24 on the two ends of the pipe through the hooks. At this time, the torsion spring winding structure inside the wire box 23 pulls the wire box 23 to be located at the midpoint of the pipe. The operator can use the wire box 23 as a punctuation mark to assist in placing along the pipe clamp 8. Moreover, when the flap 25 is flipped after the rollers 12 adjust the pipe position through the gravity distribution, the notch 26 should be aligned with the upper pipe clamp 8. When not aligned, it means that the gravity demarcation point and the length demarcation point of the pipe are different, which also means that the mass distribution of the pipe body is uneven, indicating that there may be a problem of uneven pipe material density for the operator, realizing the quality prediction during the construction process.

[0036] The above shows and describes the basic principle, main features and advantages of the present invention. Technical staff in this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for fire-fighting equipment production, characterized in that, Comprising: A base (1) on which a plurality of brackets (2) are provided; A welding machine (3) disposed at the midpoint between adjacent brackets (2); A toothed ring (4) rotatably disposed on the bracket (2); A first motor (5) fixed to the bracket (2), and a first gear (27) for driving the toothed ring (4) is provided on its rotating shaft; A ring seat (6) fixed to the side surface of the toothed ring (4), and opposed threaded screws (7) are transversely provided on both sides inside it, and the threads on the surface of the screw (7) are provided with opposite rotation directions along the middle part thereof; Pipe clamps (8) are provided on both vertical sides of the inner plate of the ring seat (6) and are driven by the screw (7) to clamp and fix the pipeline; A cross plate (9) fixed to the bottom of the lower pipe clamp (8), and brackets (10) are slidably connected to both ends; A first spring (11) is provided on the cross plate (9) for resetting the bracket (10); Rollers (12) are rotatably disposed in grooves (13) inside the lower pipe clamp (8); A second motor (14) is fixed to the bottom of the lower pipe clamp (8) and drives the roller (12) to rotate; A trigger switch (15) is provided between the bracket (10) and the cross plate (9), and when the bracket (10) moves downward, it triggers the second motor (14) to rotate forward or backward.

2. The welding device for fire-fighting equipment production according to claim 1, characterized in that, Also comprising: A support seat (16) fixed to the base (1) and located below the ring seat (6), and a connecting rod (17) is slidably connected thereto; Two conical discs (18) are fixedly provided on the connecting rod (17); A push plate (19) is fixed to the bottom of the bracket (10), and when pressed down, it pushes the connecting rod (17) to displace along the inclined surface of the conical disc (18); A second spring (20) is provided on the support seat (16) for resetting the connecting rod (17); A second gear (21) and a caliper (22) are rotatably disposed on the connecting rod (17).

3. The welding device for fire-fighting equipment production according to claim 2, characterized in that: When the connecting rod (17) displaces, the caliper (22) is engaged and locked with the toothed ring (4); When the connecting rod (17) resets, the second gear (21) meshes with the toothed ring (4) and the first gear (27) simultaneously.

4. A welding device for fire-fighting equipment production according to claim 3, characterized in that: Also comprising a wire box (23) placed on the pipeline to be welded; A pull rope (24) with a hook is provided on both sides of the wire box (23) through a torsion spring winding mechanism; A flap (25) is rotatably disposed on the top of the wire box (23), and a notch (26) for snap-fitting and positioning with the upper pipe clamp (8) is provided at its top edge.

5. The welding device for fire-fighting equipment production according to claim 4, wherein: The trigger switch (15) includes two sets of independent contacts, respectively responding to the downward movement actions of the two brackets (10), one set of contacts triggers the second motor (14) to rotate forward, and the other set of contacts triggers the second motor (14) to rotate backward.

6. The welding device for fire-fighting equipment production according to claim 5, characterized in that: The bottom of the push plate (19) is provided with a V-shaped guide wheel, and the guide wheel is tangent to the inclined surface of the conical disc (18).

7. A welding device for fire-fighting equipment production according to claim 1, characterized in that: The inner wall of the ring seat (6) is provided with a guide groove, and both sides of the pipe clamp (8) are fitted and slid in the guide groove.

8. A method of using a welding device for fire-fighting equipment production, using a welding device for fire-fighting equipment production as described in claim 6, characterized in that, Comprising the following steps: S1. Insert the pipeline to be welded into the center of the bracket (2) so that it rests on the lower pipe hoop (8). When the middle position of the pipeline is not aligned with the pipe hoop (8), the pipeline tilts. Different tilting directions squeeze the brackets (10) on different sides to move downward, and drive the second motor (14) through the corresponding trigger switches (15), so that the rollers (12) rotate and push the pipeline to displace until the pipeline is placed flat to release the brackets (10), and then clamp the pipeline with the pipe hoop (8). At this time, the pipe orifices of two adjacent pipelines are aligned, and then weld along the alignment point with the welding machine (3); S2. When the bracket (10) moves downward, it pushes the connecting rod (17) to displace along the conical disc (18), so that the caliper (22) engages with the toothed ring (4) to lock the rotation function of the pipe hoop (8). When the pipeline is adjusted and the bracket (10) is reset, the connecting rod (17) is reset synchronously, so that the second gear (21) intervenes between the first gear (27) and the toothed ring (4). At this time, the first motor (5) can drive the pipe hoop (8) and the pipeline to rotate; S3. Hang the two side stay ropes (24) on the two ends of the pipeline through the hooks. At this time, the torsion spring winding structure inside the wire box (23) pulls the wire box (23) to the middle position of the pipeline. The operator can use the wire box (23) as a punctuation mark to assist in placing along the pipe hoop (8). Moreover, when the flap (25) is flipped after the rollers (12) adjust the position of the pipeline through the gravity distribution, the notch (26) should be aligned with the upper pipe hoop (8). When it is not aligned, it means that the gravity demarcation point and the length demarcation point of the pipeline are different, which also means that the mass distribution of the pipe body of the pipeline is uneven.

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