Corrosion-resistant stainless steel metal hose and welding production process thereof

Abstract

The invention relates to a corrosion-resistant stainless steel metal hose and a welding production process thereof, and relates to the technical field of metal hose welding technology.The welding production process comprises the steps that S1, insertion forming is conducted, specifically, a technician inserts a corrugated pipe of the corresponding size into a net sleeve, the two ends of the corrugated pipe are not in the net sleeve, and at the moment, an initial-state hose is formed; s2, joint installation is conducted, specifically, joint sleeving is conducted on the initial-state hose formed in an inserted mode, and the end side of the joint after sleeving is flush with the end side of the corrugated pipe; s3, after the net sleeve, the corrugated pipe and the connector are kept coaxial through welding equipment, welding machining is conducted, and a medium-state metal hose is formed through welding; and S4, welding of the connector and the corrugated pipe is achieved at one end through welding equipment, meanwhile, welding flux coating of the peripheral wall of the connector of the middle-state metal hose is achieved, the middle-state metal hose is in butt joint with the flange, and the finished metal hose is formed. The metal hose welding device has the beneficial effects that the joint and the flange plate can be conveniently welded at the same time, the metal hose production efficiency is improved, and meanwhile the production cost is saved.

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 and a welding production process thereof. Background Art

[0002] Metal hoses are important components in the connection pipelines of modern industrial equipment. Metal hoses are used as wire and cable protection tubes for electric wires, cables, and electric instrument signals, as well as civilian shower hoses. The specifications range from 3mm to 150mm. Small-diameter metal hoses are mainly used for sensor line protection such as precision optical rulers and industrial sensor line protection. Large-diameter metal hoses are used to connect fluids. During the flow of fluids, metal hoses are used to reduce the noise generated by fluid vibration and improve the fatigue resistance of the entire connection system. The mesh sleeves and bellows on the surface of metal hoses are often made of stainless steel, so they have good corrosion resistance.

[0003] Common metal hoses include bellows, mesh sleeves, joints and flanges. In some cases, the metal hose is also connected to a conduit. The bellows is embedded in the mesh sleeve. Each bellows is provided with two joints and two flanges. The two joints are respectively mounted and 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 the metal hose includes the following steps. First, the technician inserts the bellows into the mesh sleeve, and then the technician mounts the joints on the two ends of the mesh sleeve, and then the two ends of the metal hose are polished and smoothed by cutting and polishing equipment, and then the joints and the mesh sleeve are welded and fixed by welding, 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 connected to 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 carried out by surfacing welding, while the welding of the flange is carried out 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 and a welding production process thereof.

[0006] The present application provides a corrosion-resistant stainless steel metal hose and a welding production process thereof, which adopts the following technical solutions: A corrosion-resistant stainless steel metal hose and a welding production process thereof, comprising the following steps: S1, plug-in molding, the technician inserts the bellows of corresponding size into the mesh sleeve so that both ends of the bellows are immersed in the mesh sleeve, and the initial hose is formed; S2, joint installation, the initial state hose is sleeved with the joint, so that the end side of the joint after sleeved 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, the corrugated pipe and the joint 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, the bellows, and the joint are kept coaxial, and then welding is performed to form a neutral metal hose; S4, while realizing welding of the joint and the bellows at one end through welding equipment, realizing solder coating of the joint outer wall of the intermediate metal hose, and docking the intermediate metal hose with the flange so that the intermediate metal hose is always aligned with the flange, and then high-temperature heating of the intermediate metal hose and the flange is performed through welding equipment to realize brazing of the intermediate metal hose and the flange, thereby finally forming a finished metal hose.

[0007] Meanwhile, the welding equipment used in steps S2-S5 includes a frame, a first welding assembly arranged on the frame, a mounting platform arranged on the frame, a centering assembly arranged on the frame, and a second welding assembly arranged on the frame, the flange ring is placed on the mounting platform, and the mounting platform is also provided with a heating element for heating the flange ring and the joint; The first welding assembly includes a welding block disposed on the top of the frame and a first clamping ring disposed on the frame, the inner peripheral wall of the first clamping ring is in contact with the outer peripheral wall of the joint, the welding block is arranged toward the metal hose and the welding block is directly opposite to the side of the metal hose; The centering assembly includes a second clamping ring disposed on the frame, the second clamping ring is sleeved on the middle of the metal hose, the second clamping ring is rotatably disposed on the frame, and the rotation axis of the second clamping ring is perpendicular to the height direction of the frame; The second welding assembly comprises a third clamping ring arranged on the frame, a coating rod arranged on the frame, a solder box arranged on the frame, and a storage member for storing the coating rod, the coating rod is connected to the solder box, the third clamping ring is tightly fitted against the outer peripheral wall of the metal hose, and the third clamping ring is tightly fitted against the surface of the mounting platform; The coating rod is fitted with the outer peripheral wall of the joint, and a coating hole is opened on the coating rod. A sealing block is slidably arranged at the coating hole, and the sealing block movably seals 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.

[0008] By adopting the above technical scheme, 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 then 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 insertion of 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. The first clamping ring, the second clamping ring, and the third clamping ring are rotated synchronously by rotating them, so that the entire metal hose rotates synchronously, reducing the torsion caused by the asynchronous rotation of various parts of the metal hose. Since the metal hose is prone to tilt when it is twisted, it is not easy to center. Therefore, the first clamping ring, the second clamping ring, and the third clamping ring are rotated synchronously by the synchronization parts to achieve synchronous rotation of the entire metal hose.

[0009] 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.

[0010] Optionally, the synchronous parts include three groups of connecting rods arranged 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 synchronous gear rings, a synchronous gear is rotatably provided on the connecting rod, the synchronous gear is meshed with the synchronous gear ring, a linkage worm gear is also provided on the connecting rod, the linkage worm gear is transmission-connected with the synchronous gear, a linkage worm is rotatably provided on the frame, the linkage worm is meshed with the linkage worm gears on the three groups of connecting rods.

[0011] By adopting the above technical scheme, when the metal hose is synchronously cut and welded, the linkage worm is rotated, and the linkage worm drives the linkage worm wheel to rotate. Since the linkage worm wheel is connected to the synchronous gear transmission, when the linkage worm wheel rotates, it drives the synchronous gear to rotate, thereby driving the synchronous gear ring to rotate. Through the linkage worm wheels set 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.

[0012] 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, the frame is provided with a fixed block, the three groups of connecting rods are all provided on the fixed block, the storage member includes a storage gear rotatably set on the frame, the fixed block is slidably set on the frame, and the fixed block is provided with a storage rack, the storage rack is meshed with the storage gear, and a linkage gear is provided at the rotating shaft of the coating rod, and the storage gear is meshed with the linkage gear.

[0013] 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 insertion of the joint and the flange, the coating rod is easy 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 insertion of 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, thereby achieving separation of the coating rod and the surface of the joint, thereby facilitating the descent of the joint and connecting with the flange.

[0014] At the same time, by rotating the coating rod to give way, it is not easy to heat and melt the solder in the coating rod during heating, reducing the blockage of the solder in the coating rod, thereby facilitating the normal solder coating.

[0015] 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 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.

[0016] 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, so that the blocking block moves toward the coating hole, the coating hole is opened, and the solder flows out from the coating hole toward the outer peripheral wall of the joint, thereby facilitating the coating of the outer peripheral wall of the joint; When there is no need to coat the 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 sealing block, when the joint is separated from the coating rod, the sealing block protrudes from the coating hole. At this time, the sealing block seals the coating hole, so that after the solder coating is completed on the joint surface, the coating hole is automatically sealed to reduce the waste of solder.

[0017] At the same time, by sliding the abutment plate arranged on the coating rod, after the welding of the joint at 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.

[0018] 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 corrugated tube.

[0019] 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, the bellows and the mesh sleeve always remain coaxial, thereby achieving stable welding of the joint, the bellows and the mesh sleeve and ensuring the quality of the metal hose.

[0020] Optionally, the sliding member includes a sliding block slidably arranged on the adjusting block, the end side of the metal hose after welding of the sliding block is movably fitted, an adjusting rod is slidably arranged on the connecting rod, the ends of the sliding block and the adjusting rod close to each other are both inclined, and the adjusting rod is elastically arranged on the connecting rod, an abutment rod is slidably arranged on the fixed block, and the abutment rod is movably fitted with the abutment plate.

[0021] By adopting the above technical scheme, 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, and after welding is completed, the weld fits and presses the sliding block tightly. When the sliding block slides toward the adjusting block, since the end side of the sliding block is inclined, the adjusting rod is driven to slide, and the adjusting rod is pressed against the abutting rod, which drives the abutting rod to press against the abutting plate, so that the abutting plate blocks the coating rod. Since the entire joint has been 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 from the coating hole, so that the solder coating on the outer peripheral wall of the joint is uniform.

[0022] Optionally, limit blocks are slidably provided on the first clamping ring, the second clamping ring and the third clamping ring, and a plurality of limit blocks are provided. The plurality of limit blocks are evenly spaced along the circumference direction of the first clamping ring, and the plurality of limit blocks enclose a clamping cavity for clamping the metal hose. The plurality of limit blocks are movably fitted and tightly pressed against the outer peripheral wall of the metal hose, and the first clamping ring, the second clamping ring and the third clamping ring are provided with limit members for synchronously adjusting the plurality of limit blocks.

[0023] 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 then welds the joint. At this time, the technician adjusts the limit block through the limit piece, so that the multiple limit blocks slide close to each other, and clamp and fix 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.

[0024] Optionally, the limiting member includes a limiting ring arranged on the first clamping ring / the second clamping ring / the third clamping ring for relative rotation, the limiting block is provided with a limiting rod, the limiting ring is provided with a limiting groove, 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 / the second clamping ring / the third clamping ring.

[0025] 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 close to each other 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.

[0026] At the same time, when the limit block clamps the metal hose, the technician adjusts the locking piece to achieve stable clamping and stable loosening of the metal hose by the limit block.

[0027] Optionally, the locking member includes a locking block slidably disposed 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.

[0028] By adopting the above technical solution, when the technician rotates the limit ring, the elastically arranged locking block is movable and immersed in the limit ring, and when the locking block is rotated 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.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: 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 joint that has been welded at the bottom 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; 2. Through 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 adjusted to rotate synchronously through a power source, so as to realize the synchronous rotation of the metal hose, reduce the torsion of the metal hose during welding, thereby improving the welding quality and the flatness of the end side welding, and reducing the subsequent repeated grinding steps; 3. Through the setting of the 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 coated with solder at the bottom 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 to block the coating rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a schematic diagram of the overall structure of the metal hose in this application; Figure 2 It is a schematic diagram of the overall structure of the welding equipment in this application; Figure 3 It is a schematic diagram of the connection structure of the welding equipment; Figure 4 yes Figure 3 Schematic diagram of the connection structure of part A.

[0031] Figure numerals: 1, mesh sleeve; 11, joint; 12, bellows; 13, flange; 2, frame; 21, mounting table; 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; 46, storage member; 461, fixing block; 462, storage gear; 463, storage rack; 47, abutment plate ;48. Sliding member;481. Sliding block;482. Adjusting rod;483. Abutting rod;5. Centering assembly;51. Second clamping ring;52. Synchronizing member;521. Connecting rod;522. Synchronizing ring gear;523. Synchronizing gear;524. Linked worm gear;525. Linked worm;6. Limiting block;61. Clamping cavity;62. Limiting member;621. Limiting ring;622. Limiting groove;623. Limiting rod;63. Locking member;631. Locking block;632. Locking groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The present application embodiment discloses a corrosion-resistant stainless steel metal hose and a welding production process thereof. Figure 1 A corrosion-resistant stainless steel metal hose comprises a mesh sleeve 1, joints 11 sleeved on both ends of the mesh sleeve 1 and a bellows 12 embedded in the mesh sleeve 1, the joint 11, the mesh sleeve 1 and the bellows 12 are coaxially arranged, and the joint 11, the mesh sleeve 1 and the bellows 12 are fixed by welding, and flanges 13 are welded and fixed at both ends of the mesh sleeve 1, and in the present application, the mesh sleeve 1, the joint 11 and the bellows 12 are all.

[0034] The present application also proposes a corrosion-resistant stainless steel metal hose welding production process, comprising the following steps: 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, make the sleeved end of the connector 11 flush with the end of the corrugated tube 12, and polish the end of the metal hose with a polishing device, make the mesh sleeve 1, the corrugated tube 12, and the connector 11 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 corrugated tube 12, and the joint 11 are kept coaxial, and then welding is performed to form a neutral metal hose; S4, the outer wall of the joint 11 of the neutral metal hose is coated with solder while the joint 11 is welded to the bellows 12 at one end by welding equipment, and the neutral metal hose is docked with the flange 13, so that the neutral metal hose is always aligned with the flange 13, and then the neutral metal hose and the flange 13 are heated at high temperature by welding equipment to achieve brazing of the neutral metal hose and the flange 13, and finally form a finished metal hose. The welding equipment involved in this application includes a vertically fixed frame 2, the bottom of the frame 2 is fixedly connected to a mounting table 21, the mounting table 21 is provided with a mounting groove for storing the flange 13, and a heating element is fixedly embedded in the mounting table 21 on the periphery of the mounting groove, and the heating element in this application is an electric induction heating wire.

[0035] The frame 2 is provided with a first welding assembly 3, a centering assembly 5 and a second welding assembly 4 in sequence 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.

[0036] Reference Figure 2 and Figure 3 The first welding assembly 3 includes a first clamping ring 31 arranged 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, the joint 11, and the corrugated tube 12 are connected, and the first clamping ring 31 is rotatably set on the frame 2 to drive the top end of the metal hose to rotate.

[0037] 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.

[0038] 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 connected to 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 a sealing block 44 is slidably arranged at the coating hole 43 of the coating rod 42, the sealing 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 member 45 for slidingly adjusting the sealing block 44, in the present application, the thickness of one end of the sealing block 44 movably located in the coating hole 43 is greater than the thickness of one end movably protruding from the coating hole 43, and the adjusting member 45 is an adjusting spring 451 fixedly connected to the sealing 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, so that the blocking block 44 moves toward the coating hole 43, and the coating hole 43 is opened, so that the solder flows out from the coating hole 43 toward the outer peripheral wall of the joint 11, thereby facilitating coating of the outer peripheral wall of the joint 11; When there is no need to coat the solder, the fixed block 461 descends to drive the coating rod 42 to move in a direction away from the joint 11. At this time, under 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, thereby reducing the waste of solder.

[0039] 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.

[0040] At the same time, in order to achieve stable welding on the top of the metal hose and stable coating of solder on 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 arranged 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 arranged on the connecting rod 521 on the top side, the second clamping ring 51 is rotatably arranged on the connecting rod 521 in the middle, and the third clamping ring 41 is rotatably arranged on the connecting rod 521 on the bottom side. The synchronizer 52 includes a synchronizer gear 523 rotatably arranged on the connecting rod 521, and a synchronizer gear ring 522 is provided on the outer peripheral wall of the first clamping ring 31 / the second clamping ring 51 / the third clamping ring 41, and the synchronizer gear 523 is meshed with the synchronizer gear ring 522. The synchronizer 52 also includes a linkage worm 525 rotatably arranged on the frame 2, and a linkage worm wheel 524 is rotatably arranged on each connecting rod 521. The linkage worm 525 is meshed with the linkage worm wheel 524, and the rotating shaft of the linkage worm 525 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, and the first bevel gear is meshed with the second bevel gear.

[0041] When the metal hose is synchronously cut and solder coated, the linkage worm 525 is rotated, and the linkage worm 525 drives the linkage worm wheel 524 to rotate. Since the linkage worm wheel 524 is connected with 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. Through the linkage worm wheels 524 set on the three groups of connecting rods 521, when the linkage worm 525 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.

[0042] At the same time, in order to achieve stable clamping of the metal hose, a plurality of limit blocks 6 are slidably arranged on the first clamping ring 31, the second clamping ring 51 and the third clamping ring 41. The plurality of 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 plurality of limit blocks 6 are evenly spaced along the circumference direction of the first clamping ring 31. The plurality of limit blocks 6 on each clamping ring enclose a clamping cavity 61 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 each provided with a limit member 62 for synchronously adjusting the plurality of limit blocks 6.

[0043] Reference Figure 4 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. 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 one 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 that 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 the multiple limit blocks 6 to slide closer / away, thereby clamping / relaxing the outer peripheral wall of the metal hose.

[0044] 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 piece 63 is also provided on the limiting ring 621, and the locking piece 63 includes a locking block 631 slidably arranged on the first clamping ring 31 / the second clamping ring 51 / the third clamping ring 41, and the locking block 631 is elastically arranged on the first clamping ring 31 / the second clamping ring 51 / the third clamping ring 41, and a locking groove 632 is opened on the limiting ring 621, and the end side of the locking block 631 close to the limiting ring 621 is movably inserted into the locking groove 632, and the end of the locking block 631 movably inserted into the locking groove 632 is in an arc shape.

[0045] After the coating of the joint 11 is completed, the joint 11 needs to be inserted into the flange 13 and then heated and welded. 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, 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.

[0046] When the fixed block 461 drives the three groups of connecting rods 521 to descend synchronously to achieve 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, thereby achieving the separation of the coating rod 42 and the surface of the joint 11, thereby facilitating the joint 11 to descend and connect with the flange 13.

[0047] At the same time, when the production welding of the metal hose is carried out, it is necessary to ensure the uniformity of the solder coating on the surface of the joint 11. Therefore, 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 adjusting block 33 is fixedly connected to the top connecting rod 521. The adjusting block 33 is "L" shaped, and the end of the adjusting block 33 away from the connecting rod 521 is tightly fitted against the inner circumferential wall of the corrugated tube 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 member 48 for slidingly adjusting the abutment plate 47 is also provided on the frame 2.

[0048] 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 arrangement 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 tightly 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 is kept protruding from the arrangement of the adjusting block 33. After the welding is completed, the weld is fitted and tightly pressed against the sliding block 481, and the sliding block 4 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, which drives 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 at this time, which is equivalent to the coating rod 42 just completely coating the outer peripheral 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 peripheral wall of the joint 11 is uniform.

[0049] The implementation principle of a corrosion-resistant stainless steel metal hose and its 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 then performed. At this time, the technician adjusts the limit block 6 through the limit piece 62, so that the multiple limit blocks 6 slide close to each other, clamping and fixing the outer peripheral 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.

[0050] When the linkage worm 525 rotates, it drives the three sets of linkage 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.

[0051] After the solder coating is completed, the fixed block 461 descends to drive the coating rod 42 to move in the direction away from the joint 11. At this time, under 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.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope 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; S2, installing the connector (11), sleeve-jointing the initially plug-formed hose onto the connector (11), making the sleeved end of the connector (11) flush with the end of the corrugated tube (12), and polishing the end of the metal hose using a polishing device, making the mesh sleeve (1), the corrugated tube (12), and the connector (11) 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, welding the joint (11) and the bellows (12) at one end by means of a welding device, while coating the outer 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 high-temperature heating the intermediate metal hose and the flange (13) by means of the welding device to achieve brazing of the intermediate metal hose and the flange (13), thereby finally forming a finished metal hose.

2. The corrosion-resistant stainless steel metal hose welding production process according to claim 1 is characterized in that: The welding equipment used in steps S2-S5 comprises a frame (2), a first welding assembly (3) arranged on the frame (2), a mounting platform (21) arranged on the frame (2), a centering assembly (5) arranged on the frame (2), and a second welding assembly (4) arranged on the frame (2); the flange (13) ring is placed on the mounting platform (21); and the mounting platform (21) is also 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) arranged on the top of the frame (2) and a first clamping ring (31) arranged on the frame (2), the inner peripheral wall of the first clamping ring (31) being in contact with the outer peripheral wall of the joint (11), the welding block (32) being arranged toward the metal hose and the welding block (32) being directly opposite to the side of the metal hose; The centering component (5) comprises a second clamping ring (51) provided on the frame (2), the second clamping ring (51) being sleeved on the middle position 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) arranged on the frame (2), a coating rod (42) arranged on the frame (2), a solder box arranged on the frame (2), and a storage member (46) for storing the coating rod (42), the coating rod (42) being connected to the solder box, the third clamping ring (41) being tightly fitted against the outer peripheral wall of the metal hose, and the third clamping ring (41) being tightly fitted against the surface of the mounting platform (21); The coating rod (42) is fitted with the outer peripheral wall of the joint (11); a coating hole (43) is formed on the coating rod (42); a blocking block (44) is slidably arranged at the coating hole (43); the blocking block (44) movably blocks the coating hole (43); an adjusting member (45) for slidingly adjusting the blocking block (44) is further provided on the frame (2); and 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) is further provided on the frame (2).

3. A corrosion-resistant stainless steel metal hose welding production process according to claim 2, characterized in that: The synchronous component (52) comprises three groups of connecting rods (521) arranged on the frame (2), the three groups of connecting rods (521) respectively corresponding to the first clamping ring (31), the second clamping ring (51) and the third clamping ring (41), 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 arranged on the connecting rod (521), the synchronous gear (523) is meshed with the synchronous ring gear (522), a linkage worm wheel (524) is further arranged on the connecting rod (521), the linkage worm wheel (524) is transmission-connected with the synchronization gear (523), and a linkage worm gear (525) is rotatably arranged on the frame (2), the linkage worm gear (525) is meshed with the linkage worm wheels (524) on the three groups of connecting rods (521).

4. A corrosion-resistant stainless steel metal hose welding production process according to claim 3, characterized in that: The coating rod (42) is rotatably arranged on the frame (2), the rotation axis of the coating rod (42) is consistent with the height direction of the frame (2), a fixing block (461) is provided on the frame (2), and the three groups of connecting rods (521) are all arranged on the fixing block (461), the storage member (46) comprises a storage gear (462) rotatably arranged on the frame (2), the fixing block (461) is slidably arranged on the frame (2), and a storage rack (463) is provided on the fixing block (461), the storage rack (463) is meshed with the storage gear (462), and a linkage gear is provided at the rotation shaft of the coating rod (42), and the storage gear (462) is meshed with the linkage gear.

5. A corrosion-resistant stainless steel metal hose welding production process according to claim 4, characterized in that: The blocking block (44) is movably protruded from the coating hole (43), the blocking block (44) is elastically arranged in the coating hole (43), and 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 arranged on the frame (2).

6. A corrosion-resistant stainless steel metal hose welding production process according to claim 5, 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 circumferential wall of the bellows (12).

7. A corrosion-resistant stainless steel metal hose welding production process according to claim 6, characterized in that: The sliding member (48) comprises 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) 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 tightly pressed against the abutting rod (483), and the abutting rod (483) is movably fitted with the abutting plate (47).

8. The corrosion-resistant stainless steel metal hose welding production process according to claim 7 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), 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 (61) for clamping the metal hose, the plurality of limit blocks (6) are movably fitted and tightly abutted against the outer peripheral wall of the metal hose, and 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).

9. A corrosion-resistant stainless steel metal hose welding production process according to claim 8, characterized in that: The limiting member (62) comprises 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 arranged on the limiting block (6); a limiting groove (622) is provided on the limiting ring (621); the limiting groove (622) is arranged obliquely 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 (63) 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).

10. A corrosion-resistant stainless steel metal hose welding production process according to claim 9, characterized in that: The locking member (63) comprises a locking block (631) slidably arranged on the first clamping ring (31) / the second clamping ring (51) / the third clamping ring (41); a locking groove (632) is provided on the limiting ring (621); and the locking block (631) is movably inserted into the locking groove (632).

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