A welding production process for corrosion-resistant stainless steel metal hose

Abstract

The present application relates to a corrosion-resistant stainless steel metal hose and its welding production process, and relates to the technical field of metal hose welding technology, which includes S1, plug-in molding, in which a technician inserts a corrugated tube of corresponding size into a mesh sleeve so that both ends of the corrugated tube are immersed in the mesh sleeve, and an initial hose is formed at this time; S2, joint installation, the initial hose formed by plug-in molding is sleeved with a joint so that the end side of the joint after sleeve connection is flush with the end side of the corrugated tube; S3, welding the mesh sleeve, corrugated tube, and joint together through welding equipment to form a mid-state metal hose; S4, welding the joint to the corrugated tube at one end while coating the outer peripheral wall of the joint of the mid-state metal hose with solder, and docking the mid-state metal hose with the flange to form a finished metal hose. The present application has the effect of facilitating the simultaneous welding of the joint and the flange, improving the production efficiency of the metal hose, and saving production costs.

Description

Technical Field

[0001] The present application relates to the technical field of metal hose welding technology, and in particular to a corrosion-resistant stainless steel metal hose welding production process. Background Art

[0002] Metal hoses are important components in the connection lines of modern industrial equipment. They are used as protective conduits for wires, cables, and electric instrument signals, as well as civilian shower hoses. Available in sizes ranging from 3mm to 150mm, small-diameter hoses are primarily used to protect sensor circuits such as precision optical scales and industrial sensor circuits. Large-diameter hoses connect fluids, reducing vibration noise during fluid circulation and improving the overall system's resistance to fatigue damage. The mesh and bellows on the surface of the hoses are often made of stainless steel, giving them excellent corrosion resistance.

[0003] Common metal hoses include bellows, mesh sleeves, joints and flanges. In some cases, a conduit is also connected to the metal hose. The bellows is embedded in the mesh sleeve. Each bellows is provided with two joints and two flanges. The two joints are respectively fixed on the two ends of the mesh sleeve, and the two flanges correspond to the two joints one by one and are fixedly connected; the common welding process for metal hoses includes the following steps. First, the technician inserts the bellows into the mesh sleeve, and then the technician puts the joints on the two ends of the mesh sleeve, and then polishes the two ends of the metal hose through cutting and polishing equipment parts, and then welds the joints and the mesh sleeve to fix them, so as to achieve the fixation of the joints and the mesh sleeve. After the joints and the mesh sleeve at both ends are welded and fixed, the metal hose is initially formed. Then, the technician connects the initially formed metal hose to the flange, and fixes it again by welding to finally obtain the metal hose.

[0004] Regarding the above-mentioned related technologies, since the metal hose needs to be docked with other components through flanges during subsequent use, in order to ensure the sealing of the metal hose, the joint must be kept perpendicular to the length direction of the bellows during welding, and the flange plate also needs to be kept perpendicular to the length direction of the bellows. Once the joint and the flange plate are tilted, it is easy to affect the sealing of the metal hose. Therefore, in the process of welding the joint and the flange, the clamping accuracy requirements are high. Often, the welding of the joint and the welding of the flange need to be carried out in steps, which makes the production efficiency of the metal hose relatively low. In addition, the welding of the joint is often done by surfacing, while the welding of the flange is done by butt welding. Therefore, two devices are required for welding, which increases the cost of the entire production. Summary of the Invention

[0005] In order to facilitate the simultaneous welding of joints and flanges, improve the production efficiency of metal hoses, and save production costs, the present application provides a corrosion-resistant stainless steel metal hose welding production process.

[0006] The present application provides a corrosion-resistant stainless steel metal hose welding production process using the following technical solutions:

[0007] A corrosion-resistant stainless steel metal hose welding production process includes the following steps:

[0008] S1, plug-in molding, the technician inserts the corrugated tube of corresponding size into the mesh sleeve so that both ends of the corrugated tube are immersed in the mesh sleeve, at this time the initial hose is formed;

[0009] S2, joint installation, the initial state of the plug-in hose is sleeved with the joint, so that the end side of the joint after sleeve connection is flush with the end side of the corrugated pipe, and the end side of the metal hose is polished by a polishing device to make the mesh sleeve, corrugated pipe and joint flush;

[0010] S3, clamping and centering the end side of the metal hose obtained in S2 by welding equipment, and then welding, so that the mesh sleeve, the bellows, and the joint are kept coaxial, and then welding is performed to form a neutral metal hose;

[0011] S4, realizes welding of the joint and the bellows at one end through welding equipment, and realizes solder coating of the joint outer wall of the intermediate metal hose, and docks the intermediate metal hose with the flange, so that the intermediate metal hose is always aligned with the flange, and then heats the intermediate metal hose and the flange at high temperature through welding equipment to realize brazing of the intermediate metal hose and the flange, and finally forms a finished metal hose.

[0012] Meanwhile, the welding equipment used in steps S2-S4 includes a frame, a first welding assembly provided on the frame, a mounting platform provided on the frame, a centering assembly provided on the frame, and a second welding assembly provided on the frame, wherein the flange ring is placed on the mounting platform, and the mounting platform is further provided with a heating element for heating the flange ring and the joint;

[0013] The first welding assembly includes a welding block provided on the top of the frame and a first clamping ring provided on the frame, wherein the inner peripheral wall of the first clamping ring is in contact with the outer peripheral wall of the joint, and the welding block is arranged toward the metal hose and is directly opposite to the side of the metal hose;

[0014] The centering assembly includes a second clamping ring provided on the frame, the second clamping ring being sleeved on the middle portion of the metal hose, the second clamping ring being rotatably provided on the frame, and the rotation axis of the second clamping ring being perpendicular to the height direction of the frame;

[0015] The second welding assembly includes a third clamping ring provided on the frame, a coating rod provided on the frame, a solder box provided on the frame, and a receiving member for receiving the coating rod, the coating rod being in communication with the solder box, the third clamping ring being in close contact with the outer peripheral wall of the metal hose, and the third clamping ring being in close contact with the surface of the mounting platform;

[0016] The coating rod is fitted with the outer peripheral wall of the joint, and a coating hole is provided on the coating rod. A sealing block is slidably provided at the coating hole, and the sealing block movably blocks the coating hole. The frame is also provided with an adjusting member for slidingly adjusting the sealing block, and the frame is also provided with a synchronization member for synchronously rotating and driving the first clamping ring, the second clamping ring, and the third clamping ring.

[0017] By adopting the above technical solution, when the metal hose is produced and welded by the above welding equipment, the technician first passes the metal hose to be welded through the second clamping ring and inserts one end of it into the first clamping ring. At this time, the end side of the metal hose is clamped by the first clamping ring to achieve stable connection between one end of the metal hose and the joint, and the other end side of the metal hose is inserted into the third clamping ring. By rotating the first clamping ring, the second clamping ring, and the third clamping ring, the entire metal hose is rotated synchronously, thereby reducing the torsion caused by the asynchronous rotation of various parts of the metal hose. Since the metal hose is prone to tilt when twisted, it is difficult to center. Therefore, the first clamping ring, the second clamping ring, and the third clamping ring are rotated synchronously by the synchronizing parts to achieve synchronous rotation of the entire metal hose.

[0018] At the same time, the joint, mesh sleeve and bellows are welded at one end of the set welding equipment, and the outer wall of the joint is coated with solder by the set coating rod at the other end. During the welding process, the entire metal hose rotates synchronously, so that the solder coating on the outer wall of the joint is uniform. After the coating is completed, the coating hole is sealed by the set sealing block, thereby reducing the waste of solder caused by the outflow of solder from the coating hole, saving resources, and facilitating the improvement of the uniformity of the solder coating on the outer wall of the joint.

[0019] Optionally, the synchronizing member includes three groups of connecting rods provided on the frame, the three groups of connecting rods correspond to the first clamping ring, the second clamping ring, and the third clamping ring respectively, the first clamping ring, the second clamping ring, and the third clamping ring are all coaxially provided with a synchronous ring gear, a synchronous gear is rotatably provided on the connecting rod, the synchronous gear is engaged with the synchronous ring gear, a linkage worm gear is also provided on the connecting rod, the linkage worm gear is transmission-connected with the synchronization gear, a linkage worm is rotatably provided on the frame, the linkage worm gear is engaged with the linkage worm gears on the three groups of connecting rods.

[0020] By adopting the above technical solution, when the metal hose is synchronously cut and solder coated, the linkage worm is rotated by the linkage worm, and the linkage worm drives the linkage worm wheel to rotate. Since the linkage worm wheel is connected to the synchronous gear, when the linkage worm wheel rotates, it drives the synchronous gear to rotate, thereby driving the synchronous gear ring to rotate. By setting the linkage worm wheels on the three groups of connecting rods, when the linkage worm rotates, the three groups of linkage worm wheels are driven to rotate, thereby realizing the synchronous rotation of the first clamping ring, the second clamping ring, and the third clamping ring, thereby realizing the synchronous rotation of the metal hose, reducing the torsion of the metal hose, and facilitating the accuracy of welding and the accuracy of solder coating.

[0021] Optionally, the coating rod is rotatably set on the frame, the rotation axis of the coating rod is consistent with the height direction of the frame, a fixed block is provided on the frame, the three groups of connecting rods are all provided on the fixed block, the storage part includes a storage gear rotatably set on the frame, the fixed block is slidably set on the frame, and a storage rack is provided on the fixed block, the storage rack is engaged with the storage gear, and a linkage gear is provided at the rotating shaft of the coating rod, and the storage gear is engaged with the linkage gear.

[0022] By adopting the above technical solution, after the outer wall of the joint is coated with solder, the joint needs to be inserted into the flange and then high-temperature welded. In order to achieve stable connection between the joint and the flange, the coating rod is likely to interfere with the descent of the entire metal hose. Therefore, when the fixed block drives the three sets of connecting rods to descend synchronously to achieve the connection between the joint and the flange, the fixed block drives the storage rack to slide. When the storage rack slides, it drives the storage gear to rotate, and the storage gear drives the linkage gear to rotate, so that the coating rod rotates in the direction away from the joint, realizing the separation of the coating rod and the joint surface, thereby facilitating the descent of the joint and connecting with the flange.

[0023] At the same time, the coating rod rotates and gives way, so that the solder in the coating rod is not easily heated and melted during heating, thereby reducing the blockage of the solder in the coating rod and facilitating the normal solder coating.

[0024] Optionally, the blocking block is movably protruded from the coating hole, the blocking block is elastically arranged in the coating hole, and the blocking block is tightly fitted against the outer peripheral wall of the joint, and an abutment plate is also slidably arranged on the coating rod, the abutment plate movably blocks the coating rod, and a sliding part is also provided on the frame for slidingly adjusting the abutment plate.

[0025] By adopting the above technical solution, the blocking block is slidably arranged in the coating hole. When the coating rod rotates to fit the surface of the joint, the joint and the blocking block are tightly pressed against each other, causing the blocking block to move toward the coating hole, thereby opening the coating hole and allowing the solder to flow out from the coating hole toward the outer peripheral wall of the joint, thereby facilitating coating of the outer peripheral wall of the joint.

[0026] When there is no need to apply solder, the fixed block descends and drives the coating rod to move in the direction away from the joint. At this time, under the action of the elastic restoring force of the blocking block, when the joint is separated from the coating rod, the blocking block protrudes from the coating hole. At this time, the blocking block blocks the coating hole, so that after the solder coating is completed on the joint surface, the coating hole is automatically blocked, reducing the waste of solder.

[0027] At the same time, by sliding the abutment plate set on the coating rod, after the welding of the joint on the end side of the metal hose is completed, that is, after the entire metal hose rotates one circle, the abutment plate seals the coating rod, thereby further reducing the leakage of solder at the coating hole at this time, improving the utilization rate of the solder, and reducing the waste of solder.

[0028] Optionally, an adjustment block is provided on one side of the connecting rod close to the first clamping ring, and the adjustment block is tightly fitted against the inner circumferential wall of the bellows.

[0029] By adopting the above technical solution, the adjusting block arranged on the connecting rod presses against the inner circumferential wall of the bellows when the first clamping ring clamps the joint, so that the joint, bellows and mesh sleeve always remain coaxial, achieving stable welding of the joint, bellows and mesh sleeve and ensuring the quality of the metal hose.

[0030] Optionally, the sliding member includes a sliding block slidably arranged on the adjusting block, the end side of the metal hose after the sliding block is welded is movably fitted, an adjusting rod is slidably arranged on the connecting rod, the sliding block and the end of the adjusting rod that are close to each other are both inclined, and the adjusting rod is elastically arranged on the connecting rod, and an abutment rod is slidably provided on the fixed block, and the abutment rod is movably fitted with the abutment plate.

[0031] By adopting the above technical solution, since the weld formed after welding the end side of the metal hose will be higher than the joint surface, when not welded, the sliding block remains protruding from the adjusting block layout, and after welding is completed, the weld is pressed against the sliding block, and when the sliding block slides toward the adjusting block, since the end side of the sliding block is inclined, it drives the adjusting rod to slide, and the adjusting rod presses against the abutting rod, which drives the abutting rod against the abutting plate, so that the abutting plate blocks the coating rod. Since the entire joint is welded at this time, the metal hose has just rotated a full circle, which is equivalent to the coating rod just completely coating the outer peripheral wall of the joint with solder. After rotating a full circle at this time, the abutting plate blocks the coating rod, so that the solder is not easy to continue to flow out of the coating hole, so that the solder coating on the outer peripheral wall of the joint is uniform.

[0032] Optionally, limit blocks are slidably provided on the first clamping ring, the second clamping ring and the third clamping ring, and there are multiple limit blocks. The multiple limit blocks are evenly spaced along the circumference direction of the first clamping ring, and the multiple limit blocks are combined to form a clamping cavity for clamping the metal hose. The multiple limit blocks are movably fitted and pressed against the outer wall of the metal hose, and the first clamping ring, the second clamping ring and the third clamping ring are each provided with a limit member for synchronously adjusting the multiple limit blocks.

[0033] By adopting the above technical solution, when the technician needs to weld and coat the metal hose with solder, the technician first passes the metal hose through the second clamping ring, and inserts the end of the joint to be welded together with the joint into the first clamping ring, and welds it. At this time, the technician adjusts the limit block through the limit piece, so that the multiple limit blocks slide close to each other, clamping and fixing the outer peripheral wall of the metal hose, so that the first clamping ring, the second clamping ring, and the third clamping ring respectively stably clamp the top, middle and bottom of the metal hose, and when the first clamping ring, the second clamping ring, and the third clamping ring rotate synchronously, the metal hose is driven to rotate synchronously, and the metal hose is stably clamped.

[0034] Optionally, the limiting member includes a limiting ring arranged on the first clamping ring / second clamping ring / third clamping ring for relative rotation, a limiting rod is provided on the limiting block, and a limiting groove is provided on the limiting ring. The limiting groove is arranged obliquely from close to the center of the limiting ring to away from the center of the limiting ring, the limiting rod is slidably arranged in the limiting groove, and the limiting ring is also provided with a locking member for maintaining a constant relative position between the limiting ring and the limiting ring on the first clamping ring / second clamping ring / third clamping ring.

[0035] By adopting the above technical solution, when the technician needs to clamp and fix the metal hose for subsequent welding processing, the technician first rotates the limit ring. Since the limit ring is provided with an inclined limit groove, when the technician rotates the limit ring, the limit rod slides in the limit groove, thereby driving multiple limit blocks to slide closer and clamp the outer wall of the metal hose; after welding is completed, the technician rotates the limit ring, thereby driving the limit rod to slide in the limit groove, causing the multiple limit blocks to slide away from each other, thereby loosening the metal hose and achieving the detachment of the metal hose.

[0036] At the same time, when the limit block clamps the metal hose, the technician adjusts the locking piece to achieve stable clamping and stable relaxation of the metal hose by the limit block.

[0037] Optionally, the locking member includes a locking block slidably arranged on the first clamping ring / the second clamping ring / the third clamping ring, and a locking groove is provided on the limiting ring, and the locking block is movably inserted into the locking groove.

[0038] By adopting the above technical solution, when the technician rotates the limit ring, the elastically arranged locking block moves and sinks into the limit ring, and when the locking block rotates to correspond to the locking groove, the locking block is automatically inserted into the locking groove under the action of the elastic restoring force, so that the limit ring is not easy to rotate, thereby achieving stable clamping and stable relaxation of the metal hose.

[0039] In summary, this application includes at least one of the following beneficial technical effects:

[0040] 1. Through the provided welding block and coating rod, when the metal hose is driven to rotate, while the end side of the metal hose is being welded, the outer peripheral wall of the bottom joint that has been welded is coated with solder, so that the top welding and the bottom solder coating are carried out simultaneously, thereby improving the production efficiency of the metal hose;

[0041] 2. Through the provision of the first clamping ring, the second clamping ring, the third clamping ring, the linkage worm gear and the linkage worm, the three sets of clamping rings are synchronously rotated and adjusted by a single power source, thereby achieving synchronous rotation of the metal hose, reducing torsion during the welding process of the metal hose, thereby improving the welding quality and the flatness of the end side welding, and reducing the subsequent repeated grinding steps;

[0042] 3. Through the set fixed block, storage gear and storage rack, when the top welding is completed and the bottom solder coating is completed, the fixed block drives the three sets of clamping rings to descend, so that the joint with the bottom solder coating is inserted into the flange, and at the same time the coating rod rotates to make way for the joint, thereby facilitating subsequent brazing operations and reducing the problem of the solder in the coating rod being heated and melted and clogging the coating rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the metal hose in this application;

[0044] Figure 2 It is a schematic diagram of the overall structure of the welding equipment in this application;

[0045] Figure 3 It is a schematic diagram of the connection structure of the welding equipment;

[0046] Figure 4 yes Figure 3 Schematic diagram of the connection structure of part A.

[0047] Reference numerals: 1, mesh; 11, joint; 12, bellows; 13, flange; 2, frame; 21, mounting platform; 3, first welding assembly; 31, first clamping ring; 32, welding block; 33, adjusting block; 4, second welding assembly; 41, third clamping ring; 42, coating rod; 43, coating hole; 44, blocking block; 45, adjusting member; 451, adjusting spring; 461, fixing block; 462, receiving gear Wheel; 463, storage rack; 47, abutment plate; 48, sliding member; 481, sliding block; 482, adjusting rod; 483, abutment rod; 5, centering assembly; 51, second clamping ring; 52, synchronizer; 521, connecting rod; 522, synchronizer ring gear; 523, synchronizer gear; 524, linked worm gear; 6, limit block; 62, limit member; 621, limit ring; 622, limit groove; 623, limit rod. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1-4 This application is described in further detail.

[0049] The embodiment of the present application discloses a corrosion-resistant stainless steel metal hose welding production process. Figure 1 A corrosion-resistant stainless steel metal hose includes a mesh sleeve 1, joints 11 arranged on both ends of the mesh sleeve 1, and a bellows 12 embedded in the mesh sleeve 1. The joint 11, mesh sleeve 1, and bellows 12 are coaxially arranged, and the joint 11, mesh sleeve 1 and bellows 12 are fixed by welding. At the same time, flanges 13 are welded and fixed at both ends of the mesh sleeve 1. In this application, the mesh sleeve 1, joint 11, and bellows 12 are all made of stainless steel.

[0050] The present application also proposes a corrosion-resistant stainless steel metal hose welding production process, comprising the following steps: S1, plug-in molding, a technician inserts a corrugated tube 12 of corresponding size into a mesh sleeve 1, so that both ends of the corrugated tube 12 are immersed in the mesh sleeve 1, at this time forming an initial hose;

[0051] S2, install the connector 11. Sleeve the initially plug-molded hose onto the connector 11 so that the end of the connector 11 is flush with the end of the bellows 12. Polish the end of the metal hose with a polishing device so that the mesh sleeve 1, the bellows 12, and the connector 11 are flush.

[0052] S3, clamping and centering the end side of the metal hose obtained in S2 by welding equipment, and then welding, so that the mesh sleeve 1, the corrugated tube 12, and the joint 11 remain coaxial, and then welding is performed to form a neutral metal hose;

[0053] S4, using a welding device to weld the joint 11 to the bellows 12 at one end while simultaneously coating the outer peripheral wall of the joint 11 of the intermediate metal hose with solder, and docking the intermediate metal hose with the flange 13 so that the intermediate metal hose is always aligned with the flange 13, and then using the welding device to heat the intermediate metal hose and the flange 13 at a high temperature to achieve brazing of the intermediate metal hose and the flange 13, ultimately forming a finished metal hose. The welding equipment involved in this application includes a vertically fixed frame 2, the bottom of which is fixedly connected to a mounting platform 21, the mounting platform 21 having a mounting groove for storing the flange 13, and a heating element fixedly embedded in the mounting platform 21 on the outer periphery of the mounting groove. The heating element in this application is an electric induction heating wire.

[0054] The frame 2 is provided with a first welding assembly 3, a centering assembly 5 and a second welding assembly 4 from the top to the bottom. The first welding assembly 3 is used to weld and fix the joint 11, the mesh sleeve 1 and the bellows 12. The centering assembly 5 is used to realize the synchronous rotation of the top and bottom ends of the metal hose. The second welding assembly 4 is used to coat the outer surface of the joint 11 with solder for subsequent brazing.

[0055] Reference Figure 2 and Figure 3 The first welding assembly 3 includes a first clamping ring 31 provided on the frame 2 and a welding block 32 fixed to the bottom side of the top frame 2. The end side of the metal hose is movably inserted into the first clamping ring 31, and the inner circumferential wall of the first clamping ring 31 is movably fitted with the outer circumferential wall of the joint 11. It should be noted that the welding block 32 is opposite to the side where the metal hose, joint 11, and bellows 12 are connected, and the first clamping ring 31 is rotatably set on the frame 2, driving the top end of the metal hose to rotate.

[0056] The centering assembly 5 includes a second clamping ring 51 rotatably mounted on the frame 2 . The second clamping ring 51 is coaxial with the first clamping ring 31 and is located directly below the first clamping ring 31 . The second clamping ring 51 is sleeved on the middle of the metal hose.

[0057] The second welding assembly 4 includes a third clamping ring 41 rotatably arranged on the frame 2 and a coating rod 42 arranged on the frame 2, the coating rod 42 is "L"-shaped, and the side of the coating rod 42 away from the frame 2 is in contact with the outer peripheral wall of the joint 11, and a solder box is provided on the frame 2, the solder box is communicated with the coating rod 42, and a coating hole 43 is provided on the side of the coating rod 42 in contact with the outer peripheral wall of the joint 11, and the coating rod 42 is slidably provided with a blocking block 44 at the coating hole 43, the blocking block 44 is movably fitted with the outer peripheral wall of the joint 11, and the coating rod 42 is also provided with an adjusting part 45 for slidingly adjusting the blocking block 44, in this application, the thickness of the end of the blocking block 44 movably located in the coating hole 43 is greater than the thickness of the end movably protruding from the coating hole 43, and the adjusting part 45 is an adjusting spring 451 fixedly connected to the blocking block 44. The blocking block 44 is slidably disposed in the coating hole 43. When the coating rod 42 rotates to fit the surface of the joint 11, the joint 11 is tightly pressed against the blocking block 44, causing the blocking block 44 to move toward the coating hole 43, thereby opening the coating hole 43 and allowing the solder to flow out from the coating hole 43 toward the outer peripheral wall of the joint 11, thereby facilitating coating the outer peripheral wall of the joint 11.

[0058] When there is no need to apply solder, the fixed block 461 descends and drives the coating rod 42 to move in the direction away from the joint 11. At this time, under the action of the elastic restoring force of the blocking block 44, when the joint 11 is separated from the coating rod 42, the blocking block 44 protrudes from the coating hole 43. At this time, the blocking block 44 blocks the coating hole 43, so that after the solder coating is completed on the surface of the joint 11, the coating hole 43 is automatically blocked, reducing the waste of solder.

[0059] At the same time, by sliding the abutment plate 47 set on the coating rod 42, after the welding of the joint 11 on the end side of the metal hose is completed, that is, after the entire metal hose rotates one circle, the abutment plate 47 blocks the coating rod 42, thereby further reducing the leakage of solder at the coating hole 43 at this time, improving the utilization rate of the solder, and reducing the waste of solder.

[0060] At the same time, in order to achieve stable welding of the top of the metal hose and stable coating of the solder at the bottom, the centering component 5 also includes a synchronizer 52 for synchronously rotating and driving the first clamping ring 31, the second clamping ring 51, and the third clamping ring 41. The synchronizer 52 includes three groups of connecting rods 521 slidably set on the frame 2. The three groups of connecting rods 521 correspond to the three clamping rings one by one, and the connecting rods 521 are arranged horizontally. The sliding direction of the connecting rods 521 is consistent with the height direction of the frame 2, and the first clamping ring 31 is rotatably set on the connecting rod 521 on the top side, the second clamping ring 51 is rotatably set on the connecting rod 521 in the middle, and the third clamping ring 41 is rotatably set on the connecting rod on the bottom side. On 521, the synchronizer 52 includes a synchronizer gear 523 rotatably set on the connecting rod 521, and a synchronizer ring gear 522 is provided on the outer peripheral wall of the first clamping ring 31 / the second clamping ring 51 / the third clamping ring 41. The synchronizer gear 523 is engaged with the synchronizer ring gear 522, and the synchronizer 52 also includes a linkage worm rotatably set on the frame 2. A linkage worm wheel 524 is rotatably set on each connecting rod 521, and the linkage worm is engaged with the linkage worm wheel 524, and the rotating shaft of the linkage worm is consistent with the height direction of the frame 2. A first bevel gear is provided at the rotating shaft of the linkage worm wheel 524, and a second bevel gear is provided at the rotating shaft of the synchronizer gear 523. The first bevel gear is engaged with the second bevel gear.

[0061] When the metal hose is cut and solder coated synchronously, the linkage worm is rotated, and the linkage worm drives the linkage worm wheel 524 to rotate. Since the linkage worm wheel 524 is connected to the synchronous gear 523, when the linkage worm wheel 524 rotates, it drives the synchronous gear 523 to rotate, thereby driving the synchronous gear ring 522 to rotate. By setting the linkage worm wheels 524 on the three groups of connecting rods 521, when the linkage worm rotates, the three groups of linkage worm wheels 524 are driven to rotate, thereby realizing the synchronous rotation of the first clamping ring 31, the second clamping ring 51, and the third clamping ring 41, thereby realizing the synchronous rotation of the metal hose, reducing the torsion of the metal hose, and facilitating the accuracy of welding and the accuracy of solder coating.

[0062] At the same time, in order to achieve stable clamping of the metal hose, multiple limit blocks 6 are slidingly arranged on the first clamping ring 31, the second clamping ring 51, and the third clamping ring 41. The multiple limit blocks 6 slide towards / away from each other, and the inner circumferential wall of the limit block 6 is tightly fitted against the outer circumferential wall of the metal hose. The multiple limit blocks 6 are evenly spaced along the circumference direction of the first clamping ring 31. The multiple limit blocks 6 on each clamping ring are combined to form a clamping cavity for clamping the metal hose. At the same time, the first clamping ring 31, the second clamping ring 51, and the third clamping ring 41 are all provided with limit members 62 for synchronously adjusting the multiple limit blocks 6.

[0063] Reference Figure 4The limiting member 62 includes a limiting ring 621 that is relatively rotatably arranged on the first clamping ring 31 / the second clamping ring 51 / the third clamping ring 41. The limiting ring 621 is provided with a limiting groove 622 corresponding to the limiting block 6, and the limiting groove 622 is inclined from the center of the limiting ring 621 to the direction away from the center of the limiting ring 621. Each limiting block 6 is provided with a limiting rod 623, and the end of the limiting rod 623 away from the limiting block 6 is movably inserted into the limiting groove 622. And it is slidably adapted to the limit groove 622, so when the technician needs to adjust the limit block 6 to clamp / relax the metal hose, the technician first rotates the limit ring 621. Since the limit ring 621 is provided with an inclined limit groove 622, when the technician rotates the limit ring 621, the limit rod 623 slides in the limit groove 622, thereby driving multiple limit blocks 6 to slide closer / away, clamping / relaxing the outer wall of the metal hose.

[0064] At the same time, in order to fix the position of the limiting ring 621 after rotation adjustment of the limiting ring 621, a locking part is also provided on the limiting ring 621, and the locking part includes a locking block slidably arranged on the first clamping ring 31 / the second clamping ring 51 / the third clamping ring 41, and the locking block is elastically arranged on the first clamping ring 31 / the second clamping ring 51 / the third clamping ring 41. A locking groove is provided on the limiting ring 621, and the end side of the locking block close to the limiting ring 621 is movably inserted into the locking groove, and the end of the locking block movably inserted into the locking groove is arc-shaped.

[0065] Since the joint 11 needs to be inserted into the flange 13 and then heated and welded after the coating is completed, at this time, in order to facilitate the docking operation of the joint 11 and the flange 13, the three groups of clamping rings need to be lowered as a whole. At this time, the coating rod 42 needs to make way for the descent of the metal hose. Therefore, in order to facilitate the descent adjustment operation of the metal hose, at this time, the coating rod 42 is rotatably set on the frame 2, and the rotation axis of the coating rod 42 is consistent with the height direction of the frame 2, and a fixed block 461 is slidably set on the frame 2, and the fixed block 461 is fixedly connected to the three groups of connecting rods 521, and the sliding direction of the fixed block 461 is consistent with the height direction of the frame 2, and a storage rack 463 is provided on the fixed block 461, and the storage rack 463 is meshed with the storage gear 462, and a linkage gear is provided at the rotating shaft of the coating rod 42, and the storage gear 462 is meshed with the linkage gear.

[0066] When the fixed block 461 drives the three groups of connecting rods 521 to descend synchronously to realize the connection between the joint 11 and the flange 13, the fixed block 461 drives the storage rack 463 to slide. When the storage rack 463 slides, it drives the storage gear 462 to rotate, and the storage gear 462 drives the linkage gear to rotate, so that the coating rod 42 rotates in the direction away from the joint 11, realizing the separation of the coating rod 42 and the surface of the joint 11, thereby facilitating the descent of the joint 11 and connecting with the flange 13.

[0067] At the same time, since it is necessary to ensure the uniformity of the solder coating on the surface of the joint 11 when performing production welding of the metal hose, when the top of the metal hose rotates one circle, that is, after the top welding is completed, the surface of the bottom joint 11 is completely coated with solder for one circle. In order to automatically stop the solder coating operation after rotating one circle, an adjustment block 33 is fixedly connected to the top connecting rod 521. The adjustment block 33 is "L"-shaped, and the end of the adjustment block 33 away from the connecting rod 521 is tightly fitted against the inner circumferential wall of the bellows 12. An abutment plate 47 is also slidably provided on the coating rod 42. The abutment plate 47 movably blocks the cavity in the middle of the coating rod 42. A sliding part 48 for sliding adjustment of the abutment plate 47 is also provided on the frame 2.

[0068] Reference Figure 3 and Figure 4 The sliding member 48 includes a sliding block 481 elastically arranged on the adjusting block 33, and the sliding block 481 is movably fitted with the end side of the welded metal hose. An adjusting rod 482 is slidably arranged on the connecting rod 521. The layout direction of the adjusting rod 482 is consistent with the length direction of the connecting rod 521, and one end of the adjusting rod 482 is movably fitted and pressed against one end of the sliding block 481. The ends of the sliding block 481 and the adjusting rod 482 that are close to each other are both inclined, and the adjusting rod 482 is elastically arranged on the connecting rod 521. The sliding block 481 remains protruding from the arrangement of the adjusting block 33. After welding is completed, the weld is fitted and pressed against the sliding block 481, and the sliding block 481 is pressed against the weld. When 81 slides toward the adjusting block 33, since the end side of the sliding block 481 is inclined, it drives the adjusting rod 482 to slide, and the adjusting rod 482 presses against the abutting rod 483, driving the abutting rod 483 to press against the abutting plate 47, so that the abutting plate 47 blocks the coating rod 42. Since the entire joint 11 has been welded at this time, the metal hose has just rotated a full circle, which is equivalent to the coating rod 42 just completely coating the outer wall of the joint 11 with solder. After rotating a full circle at this time, the abutting plate 47 blocks the coating rod 42, so that the solder is not easy to continue to flow out from the coating hole 43, so that the solder coating on the outer wall of the joint 11 is uniform.

[0069] The implementation principle of a corrosion-resistant stainless steel metal hose welding production process in an embodiment of the present application is: first, the metal hose is passed through the second clamping ring 51, and the end of the joint 11 to be welded is inserted into the first clamping ring 31 together with the joint 11, and the welding is completed. At this time, the technician adjusts the limit block 6 through the limit member 62, so that the multiple limit blocks 6 slide close to each other, clamping and fixing the outer wall of the metal hose, so that the first clamping ring 31, the second clamping ring 51, and the third clamping ring 41 respectively stably clamp the top, middle and bottom of the metal hose.

[0070] When the linked worm rotates, it drives the three sets of linked worm gears 524 to rotate, thereby realizing the synchronous rotation of the first clamping ring 31, the second clamping ring 51, and the third clamping ring 41, thereby realizing the synchronous rotation of the metal hose, so that the top welding block 32 welds the end side of the metal hose, and the bottom coating rod 42 coats the outer wall of the joint 11 with solder, reducing the torsion of the metal hose, thereby facilitating the accuracy of welding and the accuracy of solder coating.

[0071] After the solder coating is completed, the fixed block 461 descends and drives the coating rod 42 to move in the direction away from the joint 11. At this time, under the action of the elastic restoring force of the blocking block 44, when the joint 11 is separated from the coating rod 42, the blocking block 44 protrudes from the coating hole 43. At this time, the blocking block 44 blocks the coating hole 43, so that after the solder coating is completed on the surface of the joint 11, the coating hole 43 is automatically blocked, reducing the waste of solder, and at the same time, the joint 11 is inserted into the flange 13, and brazing is achieved by heating the heating element, thereby realizing stable and synchronous welding processing at both ends of the metal hose.

[0072] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A corrosion-resistant stainless steel metal hose welding production process, characterized by: The steps include: S1, plug-in molding, the technician inserts the bellows (12) of corresponding size into the mesh sleeve (1), so that both ends of the bellows (12) are immersed in the mesh sleeve (1), and the initial hose is formed at this time; S2, installing the connector (11), sleeve the initially formed hose with the connector (11), so that the end of the connector (11) is flush with the end of the bellows (12), and the end of the metal hose is polished by a polishing device so that the mesh sleeve (1), the bellows (12), and the connector (11) are flush; S3, clamping and centering the end side of the metal hose obtained in S2 by welding equipment, and then welding, so that the mesh sleeve (1), the bellows (12), and the joint (11) are kept coaxial, and then welding is performed to form a neutral metal hose; S4, achieving welding of the joint (11) and the bellows (12) at one end by a welding device while achieving solder coating of the outer peripheral wall of the joint (11) of the intermediate metal hose, and docking the intermediate metal hose with the flange (13), so that the intermediate metal hose is always aligned with the flange (13), and then high-temperature heating the intermediate metal hose and the flange (13) by the welding device to achieve brazing of the intermediate metal hose and the flange (13), and finally forming a finished metal hose; The welding equipment used in steps S2-S4 includes a frame (2), a first welding assembly (3) provided on the frame (2), a mounting platform (21) provided on the frame (2), a centering assembly (5) provided on the frame (2), and a second welding assembly (4) provided on the frame (2); the flange (13) ring is placed on the mounting platform (21); and the mounting platform (21) is further provided with a heating element for heating the flange (13) ring and the joint (11); The first welding assembly (3) comprises a welding block (32) provided on the top of the frame (2) and a first clamping ring (31) provided on the frame (2), wherein the inner peripheral wall of the first clamping ring (31) is in contact with the outer peripheral wall of the joint (11), and the welding block (32) is arranged toward the metal hose and the welding block (32) is directly opposite to the side of the metal hose; The centering assembly (5) includes a second clamping ring (51) provided on the frame (2), the second clamping ring (51) being sleeved on the middle portion of the metal hose, the second clamping ring (51) being rotatably provided on the frame (2), and the rotation axis of the second clamping ring (51) being perpendicular to the height direction of the frame (2); The second welding assembly (4) comprises a third clamping ring (41) provided on the frame (2), a coating rod (42) provided on the frame (2), a solder box provided on the frame (2), and a receiving member for receiving the coating rod (42), the coating rod (42) being connected to the solder box, the third clamping ring (41) being in close contact with the outer peripheral wall of the metal hose, and the third clamping ring (41) being in close contact with the surface of the mounting platform (21); The coating rod (42) is fitted with the outer peripheral wall of the joint (11), and a coating hole (43) is provided on the coating rod (42). A blocking block (44) is slidably provided at the coating hole (43), and the blocking block (44) movably blocks the coating hole (43). The frame (2) is also provided with an adjusting member (45) for slidingly adjusting the blocking block (44), and the frame (2) is also provided with a synchronizing member (52) for synchronously rotating and driving the first clamping ring (31), the second clamping ring (51), and the third clamping ring (41).

2. The corrosion-resistant stainless steel metal hose welding production process according to claim 1 is characterized in that: The synchronous member (52) includes three groups of connecting rods (521) provided on the frame (2), the three groups of connecting rods (521) corresponding to the first clamping ring (31), the second clamping ring (51), and the third clamping ring (41) respectively. The first clamping ring (31), the second clamping ring (51), and the third clamping ring (41) are all coaxially provided with a synchronous ring gear (522). A synchronous gear (523) is rotatably provided on the connecting rod (521), and the synchronous gear (523) is meshed with the synchronous ring gear (522). A linkage worm gear (524) is also provided on the connecting rod (521), and the linkage worm gear (524) is transmission-connected to the synchronization gear (523). A linkage worm is rotatably provided on the frame (2), and the linkage worm gear is meshed with the linkage worm gears (524) on the three groups of connecting rods (521).

3. The corrosion-resistant stainless steel metal hose welding production process according to claim 2 is characterized in that: The coating rod (42) is rotatably arranged on the frame (2), and the rotation axis of the coating rod (42) is consistent with the height direction of the frame (2). A fixed block (461) is provided on the frame (2), and the three groups of connecting rods (521) are all provided on the fixed block (461). The storage member includes a storage gear (462) rotatably arranged on the frame (2), the fixed block (461) is slidably arranged on the frame (2), and a storage rack (463) is provided on the fixed block (461), and the storage rack (463) is meshed with the storage gear (462). A linkage gear is provided at the rotating shaft of the coating rod (42), and the storage gear (462) is meshed with the linkage gear.

4. The corrosion-resistant stainless steel metal hose welding production process according to claim 3 is characterized in that: The blocking block (44) is movably protruded from the coating hole (43), and the blocking block (44) is elastically arranged in the coating hole (43). The blocking block (44) is tightly fitted against the outer peripheral wall of the joint (11), and an abutment plate (47) is slidably arranged on the coating rod (42). The abutment plate (47) movably blocks the coating rod (42), and a sliding member (48) for slidingly adjusting the abutment plate (47) is also provided on the frame (2).

5. The corrosion-resistant stainless steel metal hose welding production process according to claim 4 is characterized in that: An adjustment block (33) is provided on one side of the connecting rod (521) close to the first clamping ring (31), and the adjustment block (33) is tightly fitted against the inner peripheral wall of the bellows (12).

6. The corrosion-resistant stainless steel metal hose welding production process according to claim 5 is characterized in that: The sliding member (48) includes a sliding block (481) slidably arranged on the adjusting block (33), the sliding block (481) movably fits with the end side of the welded metal hose, an adjusting rod (482) is slidably arranged on the connecting rod (521), the ends of the sliding block (481) and the adjusting rod (482) close to each other are both inclined, and the adjusting rod (482) is elastically arranged on the connecting rod (521), and an abutting rod (483) is slidably arranged on the fixed block (461), the end of the adjusting rod (482) away from the sliding block (481) is movably fitted and pressed against the abutting rod (483), and the abutting rod (483) is movably fitted with the abutting plate (47).

7. The corrosion-resistant stainless steel metal hose welding production process according to claim 6 is characterized in that: The first clamping ring (31), the second clamping ring (51), and the third clamping ring (41) are all slidably provided with limit blocks (6), and a plurality of limit blocks (6) are provided. The plurality of limit blocks (6) are evenly spaced along the circumference direction of the first clamping ring (31), and the plurality of limit blocks (6) are combined to form a clamping cavity for clamping the metal hose. The plurality of limit blocks (6) are movably fitted and tightly pressed against the outer peripheral wall of the metal hose. The first clamping ring (31), the second clamping ring (51), and the third clamping ring (41) are all provided with limit members (62) for synchronously adjusting the plurality of limit blocks (6).

8. The corrosion-resistant stainless steel metal hose welding production process according to claim 7 is characterized in that: The limiting member (62) includes a limiting ring (621) which is relatively rotatably arranged on the first clamping ring (31) / the second clamping ring (51) / the third clamping ring (41), a limiting rod (623) is provided on the limiting block (6), a limiting groove (622) is provided on the limiting ring (621), the limiting groove (622) is inclined from a position close to the center of the limiting ring (621) to a position away from the center of the limiting ring (621), the limiting rod (623) is slidably arranged in the limiting groove (622), and the limiting ring (621) is further provided with a locking member for maintaining a constant relative position between the limiting ring (621) and the limiting ring (621) on the first clamping ring (31) / the second clamping ring (51) / the third clamping ring (41).

9. The corrosion-resistant stainless steel metal hose welding production process according to claim 8, characterized in that: The locking member comprises a locking block slidably arranged on the first clamping ring (31) / the second clamping ring (51) / the third clamping ring (41); a locking groove is provided on the limiting ring (621), and the locking block is movably inserted into the locking groove.

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