A welding device before heat treatment applied to high-pressure cylinder production

Abstract

The application discloses a welding device before heat treatment applied to high-pressure gas cylinder production and relates to the technical field of welding equipment. In the application, when the gas cylinders are butt-jointed by being pushed by the air cylinders, the relative extrusion force between the gas cylinders triggers the central gathering friction mechanism, the two gas cylinders are driven by the central gathering friction mechanism to rotate in the forward and reverse directions at the same time of butt-joint, the rotating force can make the closely attached bottle mouths rub against each other, the symmetrical reverse friction between the rough bottle mouth surfaces can efficiently remove the welding spots on the bottle mouths and straighten the warped edges to a certain extent, the adhesion between the bottle mouths is improved, the occurrence of the false welding condition is avoided, the stability of the gas cylinder connection in the operation process is ensured, the heat in the gas cylinder can be uniformly distributed after the gas cylinder enters the heat treatment bin, the heat treatment efficiency is improved, and the unnecessary energy loss caused by the defective / substandard products in the gas cylinder processing flow is correspondingly reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of welding equipment, in particular to a welding device before heat treatment applied to high-pressure cylinder production. BACKGROUND

[0002] The welding device before heat treatment applied to high-pressure cylinder production is an auxiliary device for the preliminary welding of high-pressure cylinders, and the working process of the device is as follows:

[0003] 1. The high-pressure cylinders are transported into the rotating roller at the two sides of the device by the conveying belt to wait for welding;

[0004] 2. The cylinder mouths of the high-pressure cylinders are pushed to face each other from two directions by the air cylinder;

[0005] 3. The rotating roller is started to drive the high-pressure cylinders to rotate synchronously and cooperate with manual operation to perform multi-point welding in a surrounding mode;

[0006] 4. Finally, the welded high-pressure cylinders are transported into the heat treatment bin through the conveying belt, and the welding positions of the high-pressure cylinders are cut open after the heat treatment is completed.

[0007] In the welding process, the welding of the cylinder mouths does not need to be too firm (because the welding positions of the high-pressure cylinders need to be cut open later), and the welded high-pressure cylinders can be treated at a time during the heat treatment (the current heat treatment bin is "one cylinder at a time"), and because the high-pressure cylinders are relatively welded, the heat treatment efficiency can be improved.

[0008] Because the high-pressure cylinders need to be cut open at the welding positions of the cylinder mouths after the heat treatment, the cylinder mouths are not machined (rough blank) during the welding, and the bottle tail is in the state of finished machining (the subsequent machining steps are saved, and the welding process of the small cylinder mouth is faster). The welding points and the raised edges exist on the mouth surface of the rough blank, the cylinder mouths cannot be efficiently matched in the middle during the alignment of the two high-pressure cylinders, and the virtual welding occurs during the spot welding, so that the connection stability between the cylinder mouths is not high, and the disconnection easily occurs during the transmission.

[0009] In addition, the high-pressure cylinder group that is disconnected enters the heat treatment bin, and because the cylinder mouths cannot be efficiently aligned, the heat uniformity of the two high-pressure cylinders is affected to a certain extent (the efficient alignment of the cylinder mouths means that the joints are uneven, and the heat treatment of the high-pressure cylinders is generally synchronous from the inside and the outside. When heated, the uneven joints cause uneven heat to flow into the bottle, so that the heat treatment of the bottle is not uniform, and the heat treatment of the outside of the high-pressure cylinder is not affected.

[0010] In view of the above problems, it is urgent to make an innovative design on the basis of the original welding device before heat treatment applied to high-pressure cylinder production. SUMMARY

[0011] The technical scheme of the present application provides a solution significantly different from the prior art to solve the problem of the prior art solution being too single, and specifically aims to provide a welding device applied to high-pressure gas cylinder production before heat treatment to solve the problems of virtual welding and low efficiency of manual welding due to error adjustment during welding of the high-pressure gas cylinder with uneven nozzle.

[0012] To achieve the above object, the present application provides the following technical scheme: a welding device applied to high-pressure gas cylinder production before heat treatment, comprising a conveying line body and a welding arm body arranged inside the conveying line body for controlling welding of the gas cylinder, further comprising:

[0013] A centering friction mechanism symmetrically arranged on the outer wall of the conveying line body and a self-adaptive pressing mechanism arranged outside the centering friction mechanism;

[0014] The centering friction mechanism comprises air cylinders symmetrically arranged on both sides of the outer wall of the conveying line body, the output end of the air cylinder is movably connected with a friction increasing disc, and one side of the friction increasing disc is movably connected with a cylindrical cam;

[0015] The self-adaptive pressing mechanism comprises a rotating rod connected with the outer wall of the cylindrical cam, and the rotating rod is in the shape of "L";

[0016] One end of the rotating rod is connected with an outer shell, the inner wall of the outer shell is provided with an inner telescopic rod, and the outer wall of the inner telescopic rod is surrounded by a return spring.

[0017] Preferably, one side of the outer wall of the cylindrical cam is movably connected with a rotating telescopic rod, and the outer wall of the rotating telescopic rod is surrounded by a pressure spring;

[0018] One end of the rotating telescopic rod is movably connected with a linkage turntable, and one side of the linkage turntable is provided with a linkage chassis;

[0019] The rotating telescopic rod penetrates through the linkage chassis and is movably connected with the linkage turntable.

[0020] Preferably, one end of the inner telescopic rod is connected with a force receiving block, and both sides of the outer wall of the force receiving block are provided with a rack;

[0021] One side of the outer wall of the linkage chassis is provided with a supporting rod, and one end of the supporting rod is provided with a clamping rod;

[0022] The outer wall of the cylindrical cam is provided with a groove, and the diameter of the clamping rod is matched with the diameter of the inner wall of the groove of the cylindrical cam.

[0023] Preferably, the groove of the outer wall of the cylindrical cam is in the shape of an inclination, and the groove of the cylindrical cam is semi-annularly arranged on the outer wall of the cylindrical cam.

[0024] Preferably, the three-dimensional view of the friction-increasing disc is disc-shaped, and the outer wall of the friction-increasing disc is provided with rubber;

[0025] The outer wall of the friction-increasing disc is close to the rotating roller on the outer wall of the conveying line body.

[0026] Preferably, the rack is symmetrically movably provided with a linkage gear on both sides, and the tooth groove of the linkage gear is matched with the tooth groove of the rack.

[0027] The outer wall of the linkage gear is movably connected with a clamping rod, and the clamping rod is a flat cuboid.

[0028] Preferably, one end of the clamping rod is connected with a pressure receiving piece, and the three-dimensional view of the pressure receiving piece is an irregular cuboid.

[0029] The material of the pressure receiving piece is the same as that of the friction-increasing disc, and both are rubber.

[0030] Preferably, cavities are formed in the outer wall of the shell on both sides, and the diameter of the shell cavity is matched with the diameter of the clamping rod.

[0031] Preferably, a sliding groove is formed in the bottom of the outer wall of the shell, and the force receiving block penetrates through the sliding groove formed in the bottom of the outer wall of the shell.

[0032] Preferably, the rotating rods are symmetrically distributed on both sides of the outer wall of the cylindrical cam, and the height of the rotating rod is greater than that of the supporting rod.

[0033] Compared with the prior art, the beneficial effects of the present application are:

[0034] 1. When the gas cylinders are pushed and connected by the gas cylinder, the relative extrusion force between the gas cylinders triggers the central friction mechanism, and the two gas cylinders complete the forward and reverse rotation at the same time through the central friction mechanism. The rotating force can make the closely attached bottle nozzles rub against each other, and the symmetrical reverse friction between the rough bottle nozzle surfaces can efficiently remove the welding spots on the bottle nozzles and straighten the warped edges to a certain extent, thereby improving the adhesion between the bottle nozzles and avoiding the occurrence of virtual welding. On the one hand, the stability of the gas cylinder connection during the operation process is ensured, and on the other hand, the uniform heating of the bottle is ensured after the gas cylinder enters the heat treatment bin, so as to improve the heat treatment efficiency and correspondingly reduce the unnecessary energy loss caused by the defective / defective products in the gas cylinder processing process.

[0035] 2. When the gas cylinder is in relative friction, due to the large friction force after the mutual close and opposite rotation of the bottle nozzles, a certain misalignment is generated, and the self-adaptive pressing mechanism can fix the gas cylinder during friction, drive the stress block to displace through the extrusion force of the bottle body, and then drive the clamping rod to swing, so that the clamping rod and the pressure receiving piece clamp the bottle body, the material of the pressure receiving piece can generate a large friction force with the bottle body, which can ensure the stability of the gas cylinder, prevent the misalignment of the gas cylinder due to relative rotation, and further improve the stability in the welding process, and make the welding process integrated. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is the overall structure schematic diagram of the application.

[0037] Figure 2 It is the overall structure top view of the conveying line body and the middle friction gathering mechanism.

[0038] Figure 3 It is the overall structure schematic diagram of the middle friction gathering mechanism.

[0039] Figure 4 It is the partial structure schematic diagram of the middle friction gathering mechanism.

[0040] Figure 5 It is the main structure schematic diagram of the middle friction gathering mechanism.

[0041] Figure 6 It is the structure schematic diagram of the cylindrical cam, the rotating telescopic rod and the linkage turntable.

[0042] Figure 7 It is the structure schematic diagram of the middle friction gathering mechanism.

[0043] Figure 8 It is the structure schematic diagram of the cylindrical cam, the supporting rod and the clamping rod.

[0044] Figure 9 It is the structure side view of the middle friction gathering mechanism.

[0045] Figure 10 It is the overall structure schematic diagram of the self-adaptive pressing mechanism.

[0046] Figure 11 It is the internal overall structure schematic diagram of the self-adaptive pressing mechanism.

[0047] Figure 12 It is the structure schematic diagram of the stress block, the rack and the linkage gear.

[0048] Figure 13 It is the partial structure front view of the self-adaptive pressing mechanism.

[0049] In the figure: 1, conveying line body; 2, polycentric friction mechanism; 201, air cylinder; 202, friction increasing disc; 203, cylindrical cam; 204, rotary telescopic rod; 205, compressed spring; 206, linkage chassis; 207, supporting rod; 208, clamping rod; 209, linkage turntable; 3, self-adaptive pressurizing mechanism; 301, rotating rod; 302, outer shell; 303, inner telescopic rod; 304, return spring; 305, force block; 306, rack; 307, linkage gear; 308, clamping rod; 309, compressed sheet; 4, welding arm body. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0051] Please refer to Figures 1 to 13 The present application provides a technical solution: a welding device before heat treatment applied to high-pressure gas cylinder production, comprising a conveying line body 1 and a welding arm body 4 arranged inside the conveying line body 1 for controlling welding of the gas cylinder, further comprising:

[0052] The polycentric friction mechanism 2 symmetrically distributed on the outer wall of the conveying line body 1, and the self-adaptive pressurizing mechanism 3 arranged outside the polycentric friction mechanism 2;

[0053] The polycentric friction mechanism 2 comprises air cylinders 201 symmetrically installed on both sides of the outer wall of the conveying line body 1, and the output end of the air cylinder 201 is movably connected with a friction increasing disc 202, one side of the friction increasing disc 202 is movably connected with a cylindrical cam 203;

[0054] One side of the outer wall of the cylindrical cam 203 is movably connected with a rotary telescopic rod 204, and the outer wall of the rotary telescopic rod 204 is surrounded by a compressed spring 205;

[0055] The self-adaptive pressurizing mechanism 3 comprises a rotating rod 301 connected with the outer wall of the cylindrical cam 203, and the rotating rod 301 is in the shape of "L";

[0056] One end of the rotating rod 301 is connected with an outer shell 302, the inner wall of the outer shell 302 is provided with an inner telescopic rod 303, and the outer wall of the inner telescopic rod 303 is surrounded by a return spring 304;

[0057] One end of the inner telescopic rod 303 is connected with a force block 305, and the outer wall of the force block 305 is provided with a rack 306 on both sides.

[0058] As the embodiment, when the gas cylinders are pushed to butt joint by the gas cylinder, the central gathering friction mechanism is triggered by the relative extrusion force between the gas cylinders, the two gas cylinders are rotated in the opposite direction during the butt joint by the central gathering friction mechanism 2, the rotating force can make the closely attached bottle nozzles rub each other, and some welding spots and raised edges on the bottle nozzles are scraped off, so that the bottle nozzles are completely aligned, virtual welding is prevented in the subsequent welding process, stability of the two gas cylinders after welding is provided, safety in the transportation process is ensured, the gas cylinders are uniformly heated after entering the heat treatment bin, the heat treatment efficiency of the gas cylinders is improved, and stability is ensured, because the stability of the gas cylinder heat treatment is ensured, energy loss caused by production of defective products in the gas cylinder processing process is reduced, and the manufacturer can reduce certain production cost (the central gathering friction mechanism 2 is used to scrape off welding slag on the bottle mouth of the high-pressure gas cylinder by using the friction force of opposite rotation when the high-pressure gas cylinders are butt jointed, and the high-pressure gas cylinders are only rough blanks before heat treatment and have not been polished and polished, and the bottle mouth has some uneven welding spots).

[0059] One end of the rotating telescopic rod 204 is movably connected with the linkage turntable 209, and one side of the linkage turntable 209 is provided with the linkage chassis 206.

[0060] The rotating telescopic rod 204 penetrates through the linkage chassis 206 and is movably connected with the linkage turntable 209.

[0061] As the embodiment, when the gas cylinders are relatively rubbed, the friction force after the opposite rotation of the bottle nozzles is large, and a certain misalignment is generated, and the self-adaptive pressing mechanism 3 can fix the gas cylinders during the friction, the displacement of the stressed block 305 is caused by the extrusion force of the bottle body, the clamping rod 308 is swung, the clamping rod 308 and the pressure receiving piece 309 clamp the bottle body, the material of the pressure receiving piece 309 can generate a large friction force with the bottle body, the stability of the gas cylinder is ensured, the misalignment of the gas cylinder caused by the relative rotation is prevented, the stability in the welding process is improved, and the welding process is integrated (the friction force generated when the high-pressure gas cylinders are closely attached and oppositely rotated is large, so the self-adaptive pressing mechanism 3 is needed to fix the high-pressure gas cylinders to prevent the high-pressure gas cylinders from deviating).

[0062] One side of the outer wall of the linkage chassis 206 is provided with a supporting rod 207, and one end of the supporting rod 207 is provided with a clamping rod 208.

[0063] The outer wall of the cylindrical cam 203 is provided with a groove, and the diameter of the clamping rod 208 is matched with the diameter of the inner wall of the groove of the cylindrical cam 203.

[0064] As the embodiment, when the linkage turntable 209 is pressed, the linkage chassis 206 will move to one side, and the compression spring 205 and the rotary telescopic rod 204 will contract when the linkage chassis 206 moves. At the same time, the linkage chassis 206 moves, the support rod 207 arranged on one side of the outer wall of the linkage chassis 206 will drive the clamping rod 208 to move to one side synchronously. When the clamping rod 208 moves, the slot of the cylindrical cam 203 will drive the cylindrical cam 203 to rotate. When the cylindrical cam 203 rotates, the rotary telescopic rod 204 will rotate, and the linkage turntable 209 will rotate. At this time, since the cylindrical cam 203 is symmetrically distributed, and the slots of the two cylindrical cams 203 are opposite, the bottle mouths of the high-pressure gas cylinders on both sides will rotate in opposite directions after being tightly attached. During the movement of the clamping rod 208, the slot of the cylindrical cam 203 will drive the cylindrical cam 203 to rotate, and although the cylindrical cam 203 is symmetrically distributed, the slots of the two cylindrical cams 203 are opposite. Therefore, when the clamping rod 208 drives the cylindrical cam 203 to rotate, the high-pressure gas cylinders will rotate in two opposite directions, thereby rubbing off some welding points on the high-pressure gas cylinders.

[0065] The slot of the cylindrical cam 203 is inclined, and the slot of the cylindrical cam 203 is arranged in a half-ring manner on the outer wall of the cylindrical cam 203.

[0066] As the embodiment, when the cylindrical cam 203 rotates, the rotary telescopic rod 204 will rotate, and the linkage turntable 209 will rotate. At this time, since the cylindrical cam 203 is symmetrically distributed, and the slots of the two cylindrical cams 203 are opposite, the bottle mouths of the high-pressure gas cylinders on both sides will rotate in opposite directions after being tightly attached. Therefore, after the high-pressure gas cylinders rotate in opposite directions, some welding residues on the bottle mouths of the high-pressure gas cylinders can be rubbed off, thereby enabling the bottle mouths of the two high-pressure gas cylinders to be tightly attached, so as to prevent the occurrence of false welding (since the slot of the cylindrical cam 203 is only half the distance, when the cylindrical cam 203 rotates to a certain angle, the clamping rod 208 will be limited, and at this time the cylindrical cam 203 will be locked. Then, the cylindrical cam 203 will rotate through the rotation of the friction increasing disc 202, and at this time the two cylindrical cams 203 will rotate in the same direction).

[0067] The three-dimensional view of the friction increasing disc 202 is disc-shaped, and the outer wall of the friction increasing disc 202 is provided with rubber;

[0068] The outer wall of the friction increasing disc 202 is close to the rotating roller on the outer wall of the conveying line body 1.

[0069] As the embodiment, since the outer wall of the friction-increasing disc 202 is close to the rotating roller, when the rotating roller of the conveying line body 1 rotates, the friction-increasing disc 202 is driven to rotate due to the friction, and the friction-increasing disc 202 is movably connected with the cylindrical cam 203, so that the friction-increasing disc 202 drives the cylindrical cam 203 to rotate, the cylindrical cam 203 rotates synchronously with the high-pressure gas cylinder, and the two cylindrical cams 203 are driven to rotate in the same direction by the friction-increasing disc 202 because the slot of the cylindrical cam 203 limits the clamping rod 208. (The rotating roller arranged on the outer wall of the conveying line body 1 is originally arranged to drive the high-pressure gas cylinder placed thereon to rotate, and the rotation of the high-pressure gas cylinder represents that the welding has started.)

[0070] The rack 306 is movably arranged on the two sides in a symmetrical manner, and the gear teeth of the linkage gear 307 are matched with the gear teeth of the rack 306.

[0071] The outer wall of the linkage gear 307 is movably connected with the clamping rod 308, and the clamping rod 308 is a flat cuboid.

[0072] As the embodiment, one end of the stress block 305 drives the inner telescopic rod 303 and the return spring 304 to contract after being subjected to the pressure, and in the process of contraction of the inner telescopic rod 303 and the return spring 304, the stress block 305 moves upward, and the rack 306 arranged on the two sides of the outer wall of the stress block 305 moves synchronously, so that the gear teeth of the outer wall of the rack 306 drive the linkage gear 307 to rotate, and the linkage gear 307 drives the clamping rod 308 to swing when the linkage gear 307 rotates because the linkage gear 307 is movably connected with the clamping rod 308.

[0073] One end of the clamping rod 308 is connected with the pressure receiving piece 309, and the three-dimensional view of the pressure receiving piece 309 is an irregular cuboid.

[0074] The material of the pressure receiving piece 309 is the same as that of the friction-increasing disc 202, and both are rubber.

[0075] As the embodiment, the pressing piece 309 arranged at one end of the clamping rod 308 will be close to the outer wall of the high-pressure gas cylinder when it swings. Since the material of the pressing piece 309 is rubber, the friction will be increased when the pressing piece 309 is close to the outer wall of the high-pressure gas cylinder, so that the pressing piece 309 can fix the high-pressure gas cylinder. (The pressing piece 309 will be close to the outer wall of the high-pressure gas cylinder during the movement. Since the material of the pressing piece 309 is rubber, the outer wall of the high-pressure gas cylinder can generate a large friction, thereby preventing the high-pressure gas cylinder from deviating during the opposite rotation. Because the high-pressure gas cylinder is close when it rotates, the rotating force will be large, so a large clamping force is needed to fix the high-pressure gas cylinder.)

[0076] The outer wall of the shell 302 is provided with a cavity on both sides, and the diameter of the cavity of the shell 302 is matched with the diameter of the clamping rod 308.

[0077] As the embodiment, the stress block 305 moves upward, and the rack 306 arranged on both sides of the outer wall of the stress block 305 moves synchronously when the stress block 305 moves upward. At this time, the tooth groove of the outer wall of the rack 306 drives the linkage gear 307 to rotate. Since the linkage gear 307 is movably connected with the clamping rod 308, the linkage gear 307 drives the clamping rod 308 to swing when it rotates. At this time, the clamping rods 308 on both sides of the stress block 305 swing oppositely, and the pressing piece 309 arranged at one end of the clamping rod 308 will be close to the outer wall of the high-pressure gas cylinder (the cavity formed in the outer wall of the shell 302 is used to enable the clamping rod 308 to swing along the cavity formed in the outer wall of the shell 302, and the clamping rod 308 presents a clamping movement track during the swinging, thereby oppositely fixing the outer wall of the high-pressure gas cylinder.

[0078] The outer wall of the shell 302 is provided with a sliding groove at the bottom, and the stress block 305 penetrates the sliding groove formed at the bottom of the outer wall of the shell 302.

[0079] As the embodiment, during the process that the outer wall of the high-pressure gas cylinder is inserted into the outer wall of the linkage turntable 209, one end of the stress block 305 is pressed by the outer wall of the high-pressure gas cylinder. After the stress block 305 is pressed, the inner telescopic rod 303 and the return spring 304 are driven to contract. During the contraction of the inner telescopic rod 303 and the return spring 304, the stress block 305 moves upward, and the rack 306 arranged on both sides of the outer wall of the stress block 305 moves synchronously (during the movement of the stress block 305, the linkage gear 307 arranged on the outer wall of the stress block 305 is driven to rotate, and the clamping rod 308 movably connected with the linkage gear 307 is driven to swing oppositely. Figure 12 It can be seen from FIG. 7 that one end of the stress block 305 is inclined, so that one end of the stress block 305 can be moved by the outer wall of the high-pressure gas cylinder during the insertion of the high-pressure gas cylinder. The stress block 305 slides in the sliding groove at the bottom of the outer wall of the shell 302 during the movement.

[0080] Rotating rod 301 is symmetrically distributed on both sides of the outer wall of cylindrical cam 203, and the height of rotating rod 301 is greater than the height of supporting rod 207.

[0081] As an embodiment, when rotating rod 301 rotates with cylindrical cam 203, it will drive the high-pressure cylinder to rotate synchronously (rotating rod 301 is connected with cylindrical cam 203, so that when cylindrical cam 203 rotates, rotating rod 301 also rotates synchronously, and when rotating rod 301 rotates, shell 302 rotates synchronously, and when shell 302 rotates, the high-pressure cylinder also rotates synchronously).

[0082] Working principle: when using the heat treatment before welding device for high-pressure cylinder production, first, the conveying line body 1 is composed of three assembly line conveying devices and two rotating rollers. The user needs to pass through the two conveying devices set by the conveying line body 1 to convey the high-pressure cylinder to the two sides of the welding arm body 4, and then the user needs to align the outer wall of the high-pressure cylinder with the outer wall of the linkage turntable 209 and insert it. In the process of inserting the outer wall of the high-pressure cylinder into the outer wall of the linkage turntable 209, the outer wall of the high-pressure cylinder will press one end of the stress block 305. After being pressed, one end of the stress block 305 will drive the inner telescopic rod 303 and the return spring 304 to contract. In the process of contraction of the inner telescopic rod 303 and the return spring 304, the stress block 305 moves upward. When the stress block 305 moves upward, the gear racks 306 set on both sides of the outer wall of the stress block 305 will move synchronously. At this time, the gear teeth of the gear racks 306 will drive the linkage gear 307 to rotate. Since the linkage gear 307 is movably connected with the clamping rod 308, the linkage gear 307 will drive the clamping rod 308 to swing when it rotates. At this time, the clamping rods 308 on both sides of the stress block 305 will swing oppositely. When the clamping rod 308 swings, the pressure piece 309 set on one end of the clamping rod 308 will be close to the outer wall of the high-pressure cylinder. Since the material of the pressure piece 309 is rubber, when the pressure piece 309 is close to the outer wall of the high-pressure cylinder, the friction will be increased, so that the pressure piece 309 can fix the high-pressure cylinder.

[0083] Secondly, after the user starts the air cylinder 201, the output end of the air cylinder 201 will extend so that the fixed high-pressure gas cylinders will be close to each other, and after the high-pressure gas cylinders are close to each other, the output end of the air cylinder 201 will extend a little bit more, at this time, the high-pressure gas cylinders will generate opposite pressure and press the linkage turntable 209, when the linkage turntable 209 is pressed, the linkage chassis 206 will move to one side, and when the linkage chassis 206 moves, the pressure spring 205 and the rotary telescopic rod 204 will contract, and at the same time, the linkage chassis 206 moves, the support rod 207 arranged on the outer wall of the linkage chassis 206 will drive the clamping rod 208 to move to one side, and when the clamping rod 208 moves, the cylindrical cam 203 will be driven to rotate through the groove on the outer wall of the cylindrical cam 203, when the cylindrical cam 203 rotates, the rotary telescopic rod 204 will be driven to rotate, and when the rotary telescopic rod 204 rotates, the linkage turntable 209 will be driven to rotate, at this time, since the cylindrical cams 203 are symmetrically distributed, and the grooves of the two cylindrical cams 203 are opposite, the bottle mouths of the high-pressure gas cylinders on both sides will rotate in opposite directions after being close to each other, so that some welding spots and welding slag on the bottle mouths of the high-pressure gas cylinders can be rubbed off, and thus the bottle mouths of the two high-pressure gas cylinders can be completely close to each other, thereby preventing the occurrence of false welding.

[0084] Finally, when the cylindrical cam 203 rotates to a certain angle, since only half of the groove is arranged on the outer wall of the cylindrical cam 203, the clamping rod 208 will abut against the end of the groove, at this time, the cylindrical cam 203 will stop rotating, and then the user controls the rotating roller of the conveying line body 1 to rotate, since the outer wall of the friction increasing disc 202 is close to the rotating roller, when the rotating roller of the conveying line body 1 rotates, the friction increasing disc 202 will be driven to rotate at the same time due to the friction, and since the friction increasing disc 202 is movably connected with the cylindrical cam 203, the friction increasing disc 202 will drive the cylindrical cam 203 to rotate, when the cylindrical cam 203 rotates, the high-pressure gas cylinders will also rotate synchronously, and since the cylindrical cam 203 limits the clamping rod 208 through the groove, at this time, the two cylindrical cams 203 will be driven to rotate in the same direction by the friction increasing disc 202, and then the user starts the welding arm body 4 to weld the two high-pressure gas cylinders which are completely close to each other and rotate in the same direction, and thus the work of the present application is completed.

[0085] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A welding device before heat treatment applied to the production of high-pressure gas cylinders, comprising a conveying line body (1) and a welding arm body (4) arranged inside the conveying line body (1) for controlling the welding of the gas cylinder, characterized in that, Also include: The polycentric friction mechanism (2) is symmetrically distributed on the outer wall of the conveying line body (1), and the self-adaptive pressing mechanism (3) is arranged outside the polycentric friction mechanism (2); The polycentric friction mechanism (2) includes a cylinder (201) symmetrically mounted on the outer sides of the conveying line body (1), the output end of the cylinder (201) is movably connected with a friction increasing disc (202), one side of the friction increasing disc (202) is movably connected with a cylindrical cam (203), one side of the outer wall of the cylindrical cam (203) is movably connected with a rotating telescopic rod (204), the outer wall of the rotating telescopic rod (204) is surrounded by a pressure spring (205); One end of the rotating telescopic rod (204) is movably connected with a linkage turntable (209), one side of the linkage turntable (209) is provided with a linkage chassis (206); The rotating telescopic rod (204) penetrates through the linkage chassis (206) and is movably connected with the linkage turntable (209); The self-adaptive pressing mechanism (3) includes a rotating rod (301) connected with the outer wall of the cylindrical cam (203), the rotating rod (301) is in the shape of "L"; One end of the rotating rod (301) is connected with a shell (302), the inner wall of the shell (302) is provided with an inner telescopic rod (303), one end of the inner telescopic rod (303) is connected with a force receiving block (305), the outer wall of the force receiving block (305) is provided with a rack (306) on both sides; One side of the outer wall of the linkage chassis (206) is provided with a supporting rod (207), one end of the supporting rod (207) is provided with a clamping rod (208); The outer wall of the cylindrical cam (203) is provided with a groove, the diameter of the clamping rod (208) is matched with the diameter of the inner wall of the groove of the cylindrical cam (203), the groove of the outer wall of the cylindrical cam (203) is in the shape of inclination, the groove of the cylindrical cam (203) is arranged in the shape of half ring on the outer wall of the cylindrical cam (203), the grooves of the two cylindrical cams (203) are in reverse, the outer wall of the inner telescopic rod (303) is surrounded by a return spring (304), the outer wall of the shell (302) is provided with a cavity on both sides, and the clamping rod (308) swings along the cavity of the outer wall of the shell (302).

2. The welding device before heat treatment applied to the production of high-pressure gas cylinders according to claim 1, wherein: The friction increasing disc (202) is in the shape of a disc, and the outer wall of the friction increasing disc (202) is provided with rubber; The outer wall of the friction increasing disc (202) is close to the rotating roller on the outer wall of the conveying line body (1).

3. The welding device before heat treatment applied to the production of high-pressure gas cylinders according to claim 1, wherein: The rack (306) is symmetrically movably provided with a linkage gear (307) on both sides, the gear groove of the linkage gear (307) is matched with the gear groove of the rack (306); The outer wall of the linkage gear (307) is movably connected with a clamping rod (308), and the clamping rod (308) is in the shape of a flat rectangular solid.

4. The welding device before heat treatment applied to the production of high-pressure gas cylinders according to claim 3, characterized in that: One end of the clamping rod (308) is connected with a pressure receiving sheet (309), which is an irregular cuboid. The material of the pressure receiving sheet (309) is the same as that of the friction increasing disc (202), which is rubber.

5. The welding device before heat treatment applied to the production of high-pressure gas cylinders according to claim 1, characterized in that: The bottom of the outer shell (302) is provided with a sliding groove, and the force receiving block (305) penetrates through the sliding groove.

6. The welding device before heat treatment applied to the production of high-pressure gas cylinders according to claim 1, characterized in that: The rotating rods (301) are symmetrically distributed on both sides of the outer wall of the cylindrical cam (203), and the height of the rotating rod (301) is greater than that of the supporting rod (207).

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