Teflon-lined anti-corrosion pipeline welding auxiliary tool

Abstract

The utility model relates to the technical field of welding tools, and discloses an auxiliary tool for welding a polytetrafluoroethylene-lined anti-corrosion pipeline, which comprises a control box, the welding platform is arranged at the top of the control box, two supporting frames used for supporting the metal pipeline are arranged at the top of the welding platform, and a preset distance is formed between the two supporting frames; the preheating mechanism and the welding mechanism are arranged between the two supporting frames; during preheating, the preheating mechanism can be started, the positioning protruding blocks on the two ring bodies are synchronously rotated at the same speed through the rotating component, the metal pipeline can rotate when the positioning protruding blocks rotate through extrusion friction force between the positioning protruding blocks and the pipeline, and heat emitted by the preheating mechanism to the pipeline can be evenly received by the connecting position of the two pipelines; and thermal stress during preheating can be uniformly distributed at the joint of the two pipelines, so that the pipelines can be conveniently welded and connected by a subsequent welding mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding frock technical field, concretely relates to a kind of lining fluorine anticorrosion pipeline welding auxiliary frock. BACKGROUND

[0002] Lining fluorine pipe is a kind of polytetrafluoroethylene composite pipeline, its inner wall is covered with polytetrafluoroethylene, it has excellent corrosion resistance, high temperature resistance and no tackiness, very suitable for conveying high corrosive, high temperature medium, for chemical industry, food, pharmaceutical, medical field, lining fluorine pipe needs to be butt jointed during use It is installed, so it is convenient for the transmission of medium.

[0003] The welding between pipelines affects the transportation effect, service life, etc., preheating before welding can reduce the temperature difference between the weld and the surrounding metal, reduce the thermal stress of the weld metal, in addition, preheating also helps to remove gas, especially the hydrogen overflow in the weld, the common preheating methods currently include acetylene torch heating, resistance heating and electric induction heating, but these preheating methods need to be manually heated by torch, and the thermal stress is uneven during preheating. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of lining fluorine anticorrosion pipeline welding auxiliary frock, to at least alleviate the above problems to some extent.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A kind of lining fluorine anticorrosion pipeline welding auxiliary frock, comprising:

[0007] Control box;

[0008] Welding platform, is located at the top of the control box, the top of the welding platform is equipped with two support frames for supporting metal pipeline, two support frames have preset spacing between them;

[0009] Preheating mechanism and welding mechanism, between two support frames;

[0010] Two ring bodies, are located at the top of the welding platform, two support frames are located between two ring bodies;

[0011] Positioning lug, is located in the ring body;

[0012] Positioning component, between the welding platform and the ring body, for moving two ring bodies, two ring bodies are synchronously moved close to each other;

[0013] Rotary component, between the control box and the positioning lug, for rotating the positioning lug on two ring bodies at the same speed.

[0014] Preferably, the preheating mechanism comprises a first ring arranged on the top of the welding platform, a channel is arranged in the first ring, a plurality of flame heads are connected to the channel and arranged close to the sidewall of the metal pipe, a gas tank is arranged in the control box, and a conveying pipe is connected to the channel and arranged at the valve of the gas tank.

[0015] Preferably, the welding mechanism comprises a second ring arranged on the welding platform, the second ring is arranged at the bottom of the first ring, a laser welding head is arranged close to the sidewall of the pipe, and a laser welding device is arranged in the control box and connected to the laser welding head.

[0016] Preferably, the positioning component comprises a screw rod rotatably connected to the support frame, a support is slidably connected to the welding platform and arranged at the bottom of the ring body, the support is threadedly connected to the screw rod, a first motor is arranged at the bottom of the welding platform, and a chain transmission mechanism is arranged between the driving shaft of the first motor and the screw rod.

[0017] Preferably, the rotating component comprises a rotating shaft connected to the control box, two sections of the rotating shaft extend through the control box and are arranged outside the control box, a support rod is arranged at the top of the welding platform, a limiting rod is rotatably connected to the support rod and slidably connected to the positioning block, and a chain transmission mechanism is arranged between the limiting rod and the rotating shaft.

[0018] Preferably, a second motor is arranged in the control box, and a chain transmission mechanism is arranged between the driving shaft of the second motor and the rotating shaft.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] By setting up the support frame, when in use, the operation personnel can place two metal pipes needing to be welded and connected on the two support frames respectively, the operation personnel can move the two ring bodies by using the positioning component, the two ring bodies move towards each other and synchronously, the positioning protrusions on the ring bodies can be inserted into the metal pipes, with the gradual movement of the ring bodies driving the metal pipes, and through the action of the positioning protrusions adapting to the pipes, the two metal pipes can be coaxially contacted, and the connection of the two metal pipes of the same length is ensured to be at the positions of the preheating mechanism and the welding mechanism, the preheating mechanism can be started when preheating, and the positioning protrusions on the two ring bodies are rotated at the same speed by using the rotating component, the extrusion friction force between the positioning protrusions and the pipes can make the metal pipes rotate when the positioning protrusions rotate, the heat emitted by the preheating mechanism can be evenly received by the connection of the two pipes, the thermal stress during preheating can be evenly distributed on the connection of the two pipes, the welding mechanism is convenient for welding and connecting the pipes, and the problems that the preheating method in the prior art needs manual torch heating and the thermal stress is uneven during preheating are solved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic diagram of the utility model;

[0022] Figure 2 It is the welding platform structure schematic diagram of the utility model;

[0023] Figure 3 It is the preheating mechanism structure schematic diagram of the utility model;

[0024] Figure 4 It is the rotating shaft structure schematic diagram of the utility model;

[0025] Figure 5 It is the limiting rod structure schematic diagram of the utility model.

[0026] Reference signs:

[0027] 100, control box; 101, welding platform; 102, support frame; 103, preheating mechanism; 104, welding mechanism; 105, ring body; 106, positioning protrusion;

[0028] 200, first ring; 201, fire spraying head; 202, gas tank; 203, conveying pipe;

[0029] 300, second ring; 301, laser welding head; 302, laser welding device;

[0030] 400, lead screw; 401, support; 402, first motor;

[0031] 500, rotating shaft; 501, support rod; 502, limiting rod; 503, second motor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] refer to Figures 1-5 A welding auxiliary tooling for PTFE-lined corrosion-resistant pipes, comprising:

[0034] Control box 100;

[0035] The welding platform 101 is located on the top of the control box 100. The top of the welding platform 101 is provided with two support frames 102 for supporting metal pipes, and there is a preset distance between the two support frames 102.

[0036] The preheating mechanism 103 and the welding mechanism 104 are located between the two support frames 102;

[0037] Two rings 105 are located on top of the welding platform 101, and two support frames 102 are located between the two rings 105.

[0038] Positioning protrusion 106 is provided inside the ring 105;

[0039] A positioning component is located between the welding platform 101 and the ring 105, and is used to move the two rings 105 synchronously closer to each other.

[0040] A rotating component is located between the control box 100 and the positioning protrusion 106, used to synchronously rotate the positioning protrusion 106 on the two rings 105 at the same speed.

[0041] By setting the support frame 102, when in use, the operating personnel can place two metal pipes to be welded on the two support frames 102, and the operating personnel can move the two ring bodies 105 by using the positioning component, the two ring bodies 105 move towards each other and synchronously, so that the positioning protrusions 106 on the ring bodies 105 are inserted into the metal pipes, and with the gradual movement of the ring bodies 105 and the metal pipes and the action of the positioning protrusions 106 adapting to the pipes, the two metal pipes can be coaxially contacted, and the connection of the two metal pipes of the same length is ensured to be at the positions of the preheating mechanism 103 and the welding mechanism 104, the preheating mechanism 103 can be started during preheating, and the positioning protrusions 106 on the two ring bodies 105 are rotated at the same speed by using the rotating component, the extrusion friction between the positioning protrusions 106 and the pipes can make the pipes rotate when the positioning protrusions 106 rotate, so that the heat emitted by the preheating mechanism 103 can be uniformly received by the connection of the two pipes, the thermal stress during preheating can be uniformly distributed on the connection of the two pipes, and the subsequent welding mechanism 104 can be convenient for welding the pipes, and the problems that the preheating method in the prior art needs manual torch heating and the thermal stress is uneven during preheating are solved.

[0042] Further, the preheating mechanism 103 comprises a first ring 200 arranged on the top of the welding platform 101, a channel is arranged in the first ring 200, a plurality of flame heads 201 in communication with the channel are arranged on the side wall of the ring body 105 close to the metal pipe, a gas tank 202 is arranged in the control box 100, and a conveying pipe 203 in communication with the channel is connected to the valve of the gas tank 202.

[0043] Further, the preheating mechanism 103 comprises a first ring 200 arranged on the top of the welding platform 101, a channel is arranged in the first ring 200, a plurality of flame heads 201 in communication with the channel are arranged on the side wall of the ring body 105 close to the metal pipe, a gas tank 202 is arranged in the control box 100, and a conveying pipe 203 in communication with the channel is connected to the valve of the gas tank 202.

[0044] Further, the welding mechanism 104 comprises a second ring 300 arranged on the welding platform 101, the second ring 300 is arranged at the bottom of the first ring 200, a laser welding head 301 is arranged on the side wall of the second ring 300 close to the pipe, and a laser welding device 302 is arranged in the control box 100 and connected with the laser welding head 301.

[0045] Further, the welding mechanism 104 comprises a second ring 300 arranged on the welding platform 101, the second ring 300 is arranged at the bottom of the first ring 200, a laser welding head 301 is arranged on the side wall of the second ring 300 close to the pipe, and a laser welding device 302 is arranged in the control box 100 and connected with the laser welding head 301.

[0046] As a further of the utility model, the positioning component includes the screw rod 400 that rotates and is connected in the support frame 102, the bottom of ring body 105 is connected with the support 401 that slides with the welding platform 101, the support 401 is screwed on the screw rod 400, the bottom of welding platform 101 is equipped with first motor 402, and the drive shaft between first motor 402 and screw rod 400 is equipped with chain transmission mechanism;

[0047] Through setting first motor 402, in application, first motor 402 can be started, and the rotation of the drive shaft of first motor 402 can make screw rod 400 rotate through chain transmission mechanism, and the displacement of the support 401 in the bottom of two ring bodies 105 can be generated by the action force of screw thread, can be set according to the direction of thread on screw rod 400, so as to realize the purpose of synchronous movement of two ring bodies 105 towards each other.

[0048] As a further of the utility model, the rotating component includes the rotating shaft 500 that is connected in control box 100, and the two sections of rotating shaft 500 extend to the outside of control box 100 by penetrating control box 100, the top of welding platform 101 is connected with support 501, and the limit rod 502 that slides with positioning boss 106 is rotatably connected on support 501, and chain transmission mechanism is also connected between limit rod 502 and rotating shaft 500;

[0049] Through setting limit rod 502, when ring body 105 drives displacement of positioning boss 106, positioning boss 106 slides on limit rod 502 without disengaging limit rod 502, and when rotating shaft 500 rotates, limit rod 502 can be rotated through chain transmission mechanism, so as to realize the purpose of rotating two positioning bosses 106 in the same direction and at the same rate.

[0050] As a further of the utility model, second motor 503 is equipped in control box 100, and chain transmission mechanism is also equipped between the drive shaft of second motor 503 and rotating shaft 500;

[0051] Through setting second motor 503, second motor 503 can provide driving force for the rotation of rotating shaft 500.

[0052] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A welding auxiliary tool for lining a tetrafluoro anti-corrosion pipe, characterized by, The utility model relates to a welding device for metal pipe, which comprises a control box, a welding platform arranged on the top of the control box, two support frames arranged on the top of the welding platform for supporting metal pipes, a preheating mechanism and a welding mechanism arranged between the two support frames, two rings arranged on the top of the welding platform and located between the two support frames, positioning blocks arranged in the rings, a positioning component arranged between the welding platform and the rings for moving the two rings synchronously, and a rotating component arranged between the control box and the positioning blocks for rotating the positioning blocks on the two rings at the same speed. The preheating mechanism comprises a first ring arranged on the top of the welding platform, a channel arranged in the first ring, a plurality of flame nozzles arranged on the side wall of the metal pipe and connected to the channel, a gas tank arranged in the control box, and a conveying pipe connected to the channel and arranged at the valve of the gas tank. The welding mechanism comprises a second ring arranged on the welding platform and located at the bottom of the first ring, a laser welding head arranged on the side wall of the pipe and connected to the second ring, and a laser welding device arranged in the control box and connected to the laser welding head. The positioning component comprises a lead screw rotatably connected to the support frame, a support frame arranged at the bottom of the ring and slidably connected to the welding platform, the support frame being threadedly connected to the lead screw, a first motor arranged at the bottom of the welding platform, and a chain transmission mechanism arranged between the driving shaft of the first motor and the lead screw. The rotating component comprises a rotating shaft arranged in the control box, two sections of the rotating shaft extending through the control box to the outside of the control box, a support rod arranged on the top of the welding platform, a limiting rod slidably connected to the positioning blocks and rotatably connected to the support rod, and a chain transmission mechanism arranged between the limiting rod and the rotating shaft. A second motor is arranged in the control box, and a chain transmission mechanism is arranged between the driving shaft of the second motor and the rotating shaft. ​ ​ 2. The welding auxiliary tooling for lining the tetrafluoro anti-corrosion pipe according to claim 1, characterized in that, ​ 3. The welding auxiliary tooling for lining the tetrafluoro anti-corrosion pipe according to claim 2, characterized in that, ​ 4. The welding auxiliary tooling for lining the tetrafluoro anti-corrosion pipe according to claim 1, characterized in that, ​ 5. The welding aid for Teflon lined pipe as set forth in claim 1, wherein ​ 6. The welding aid for Teflon lined corrosion resistant pipe of claim 5, wherein: ​

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