High-frequency longitudinal welded pipe equipment

Abstract

The utility model discloses high-frequency longitudinal welded pipe equipment, and relates to the field of welded pipe equipment. The high-frequency longitudinal welded pipe equipment comprises a base, a mounting frame is fixedly connected to the base, the high-frequency longitudinal welded pipe equipment further comprises mounting bases symmetrically and fixedly connected to the two sides of the base, a supporting part arranged in a cylinder shape and fixedly connected to the base, the supporting part is hollow, a cooling pipe is arranged in the supporting part, and the cooling pipe is fixedly connected to the base. The cooling pipe is arranged in a spiral shape; the clamp is arranged on the mounting seat; the contact area and the contact time of cooling liquid and the supporting part are increased through the spiral cooling pipe, the cooling liquid circulates in the cooling pipe firstly to achieve precooling, the welding position of the pipe is preliminarily cooled in a relatively mild environment, deformation and cracks of the pipe caused by overlarge thermal stress are avoided, and then the cooling liquid is sprayed out through the liquid spraying nozzle to achieve rapid cooling. The welding seam is rapidly solidified, grains are refined, the strength and toughness of the welding seam are improved, and the overall quality of the pipe is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of welded pipe equipment, specifically, it relates to a high-frequency straight seam welded pipe equipment. Background Technology

[0002] In the production of high-frequency straight seam welded pipes, pipe quality and production efficiency have always been the focus of the industry. Currently, the high-frequency straight seam welded pipe equipment on the market has obvious defects in the cooling process after welding.

[0003] Most traditional equipment uses simple cooling methods, such as direct spray cooling of the welded pipe. This method causes the temperature of the welded pipe to drop sharply after welding. The rapid temperature change will generate excessive thermal stress inside the welded pipe, which will lead to pipe deformation and seriously affect the dimensional accuracy and appearance quality of the pipe. At the same time, thermal stress is also prone to cracking, which greatly reduces the strength and toughness of the weld, making it difficult for the overall quality of the pipe to meet the standards. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-frequency straight seam welded pipe equipment that can overcome the above problems or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A high-frequency straight seam welded pipe equipment includes a base, on which a mounting frame is fixedly connected. It further includes: mounting seats symmetrically fixedly connected to both sides of the base; a cylindrical support portion fixedly connected to the base, wherein the support portion is hollow and contains a spirally arranged cooling pipe; a clamp mounted on the mounting seats and used in conjunction with the support portion; a sliding seat slidably connected to the mounting frame; a welding head vertically connected to the sliding seat; a spray nozzle fixedly mounted on the sliding seat via a mounting frame; wherein the spray nozzle is connected to the outlet end of the cooling pipe via a second liquid delivery pipe; and a liquid supply component mounted on the mounting frame for supplying coolant to the inlet end of the cooling pipe.

[0007] Preferably, the liquid supply component includes a liquid storage tank and a liquid supply pump fixedly installed on the mounting bracket. The input end of the liquid supply pump is connected to the liquid storage tank, and the output end is connected to the liquid inlet of the cooling pipe through a liquid delivery pipe.

[0008] Preferably, an electric telescopic rod is fixedly connected to the sliding seat, the fixing frame is fixedly connected to the output end of the electric telescopic rod, and the welding head is fixedly installed on the fixing frame.

[0009] In order to drive the sliding seat to move the welding head along one end of the workpiece welding area to the other end, a lead screw is rotatably connected to the mounting bracket, a guide rod is fixedly connected to the mounting bracket, the sliding seat is slidably connected to the guide rod and threadedly connected to the lead screw, a motor is fixedly mounted on the mounting bracket, and the lead screw is fixedly connected to the output end of the motor.

[0010] In order to clamp and fix the workpiece to be welded, preferably, the fixture includes an arc-shaped clamping plate connected to a mounting base. The mounting base is provided with a driving part, which is used to drive the two arc-shaped clamping plates on the mounting base to move synchronously in opposite directions.

[0011] In order to drive the two arc-shaped clamping plates on the mounting base to move synchronously in opposite directions, the driving unit further includes a cylinder, which is fixedly connected to the mounting base, and the arc-shaped clamping plates are fixedly connected to the output end of the cylinder.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0013] This invention increases the contact area and time between the coolant and the support by using a spiral cooling pipe. The coolant first circulates in the cooling pipe to achieve pre-cooling, allowing the welded part of the pipe to cool down initially in a relatively mild environment, avoiding excessive thermal stress that could cause pipe deformation and cracks. Then, the coolant is sprayed out through the nozzle to achieve rapid cooling, causing the weld to solidify quickly, refine the grains, improve the weld strength and toughness, and ensure the overall quality of the pipe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0016] Figure 3 This is a structural schematic diagram of the support part and the arc-shaped clamping plate of this utility model;

[0017] Figure 4 This is a structural schematic diagram of the support part and cooling pipe of this utility model.

[0018] In the diagram: 1. Base; 101. Mounting bracket; 102. Mounting seat; 2. Support part; 201. Arc-shaped clamping plate; 202. Cylinder; 3. Lead screw; 301. Guide rod; 302. Sliding seat; 303. Electric telescopic rod; 304. Fixing frame; 305. Welding head; 306. Motor; 4. Cooling pipe; 401. Liquid supply pump; 402. Liquid storage tank; 403. Infusion pipe one; 404. Infusion pipe two; 405. Spray nozzle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] Example 1:

[0021] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A high-frequency straight seam welded pipe equipment includes a base 1, on which a mounting frame 101 is fixedly connected. It also includes: mounting seats 102 symmetrically fixedly connected to both sides of the base 1; a cylindrical support portion 2 fixedly connected to the base 1, wherein the support portion 2 is hollow and contains a cooling pipe 4 arranged in a spiral shape; a clamp mounted on the mounting seat 102 and used in conjunction with the support portion 2; a sliding seat 302 slidably connected to the mounting frame 101; a welding head 305 vertically connected to the sliding seat 302; a spray nozzle 405 fixedly mounted on the sliding seat 302 via a fixing frame 304; wherein the spray nozzle 405 is connected to the outlet end of the cooling pipe 4 via a second liquid delivery pipe 404; and a liquid supply component mounted on the mounting frame 101 for supplying coolant to the inlet end of the cooling pipe 4.

[0022] The liquid supply component includes a liquid storage tank 402 and a liquid supply pump 401, which are fixedly installed on the mounting bracket 101. The input end of the liquid supply pump 401 is connected to the liquid storage tank 402, and the output end is connected to the liquid inlet of the cooling pipe 4 through the liquid delivery pipe 403.

[0023] An electric telescopic rod 303 is fixedly connected to the sliding seat 302, and a fixed frame 304 is fixedly connected to the output end of the electric telescopic rod 303. The welding head 305 is fixedly installed on the fixed frame 304.

[0024] A lead screw 3 is rotatably connected to the mounting bracket 101, a guide rod 301 is fixedly connected to the mounting bracket 101, a sliding seat 302 is slidably connected to the guide rod 301 and threadedly connected to the lead screw 3, a motor 306 is fixedly mounted on the mounting bracket 101, and the lead screw 3 is fixedly connected to the output end of the motor 306.

[0025] In use, first, the pipe to be processed is fitted onto the support part 2 and fixed with a clamp. Then, an appropriate amount of coolant is added to the storage tank 402. Then, the electric telescopic rod 303 is started, and its output end extends or retracts, driving the welding head 305 and the spray nozzle 405 on its fixing frame 304 to move, thereby adjusting the height of the welding head 305 and the spray nozzle 405 to maintain a suitable distance from the surface of the pipe. After adjustment, the motor 306 and the welding head 305 are started in sequence. The motor 306 drives the lead screw 3 to rotate, causing the sliding seat 302 to move along the guide rod 301 to drive the welding head 305 and the spray nozzle 405 from one end of the pipe to the other end, so that the welding head 305 welds the welding point of the pipe.

[0026] During the welding process, the liquid supply pump 401 is started, and the coolant in the storage tank 402 is delivered to the cooling pipe 4 through the first delivery pipe 403. When the coolant flows through the cooling pipe 4, it can initially cool the welded part of the pipe in a relatively mild environment. At the same time, since the spiral cooling pipe 4 increases the contact area and contact time between the coolant and the support part 2, it improves the initial cooling effect on the welded part of the pipe, avoids excessive thermal stress caused by sudden temperature drop, and effectively reduces the risk of pipe deformation and cracking. Then, when the coolant flowing through the cooling pipe 4 is delivered into the spray nozzle 405 through the second delivery pipe 404, it sprays the coolant evenly on the surface of the welded pipe, thereby achieving rapid cooling, allowing the weld to solidify quickly, refining the grains, improving the strength and toughness of the weld, and ensuring the overall quality of the welded pipe.

[0027] After welding is completed, the welding head 305 and the liquid supply pump 401 are turned off in sequence. The electric telescopic rod 303 raises the welding head 305 and the liquid spray nozzle 405 to reset. The motor 306 moves the sliding seat 302 to the initial position. The clamp releases the pipe and the welded pipe can be taken out.

[0028] Example 2:

[0029] Reference Figure 1 , Figure 3 A high-frequency straight seam welded pipe equipment is basically the same as that in Embodiment 1. Furthermore, the clamp includes an arc-shaped clamping plate 201, which is connected to the mounting base 102. The mounting base 102 is provided with a driving part, which is used to drive the two arc-shaped clamping plates 201 on the mounting base 102 to move synchronously in opposite directions.

[0030] The drive unit includes a cylinder 202, which is fixedly connected to the mounting base 102, and an arc-shaped clamping plate 201 is fixedly connected to the output end of the cylinder 202.

[0031] When it is necessary to clamp and fix the pipe sleeved on the support part 2, the cylinder 202 is activated, and its output end extends or retracts, driving the arc-shaped clamping plate 201 fixed on the output end to move. When the output end of the cylinder 202 extends, the two arc-shaped clamping plates 201 move towards each other to clamp the pipe. When the output end of the cylinder 202 retracts, the two arc-shaped clamping plates 201 move in opposite directions to release the pipe. This not only enables the clamping and releasing of the pipe quickly, improving production efficiency, but also enables the pipe to be fixed quickly and stably, ensuring the positional accuracy of the pipe during welding, effectively reducing welding defects caused by pipe shaking, and improving welding quality. At the same time, the distance between the two arc-shaped clamping plates 201 can be adjusted according to the diameter of the pipe to adapt to the processing needs of different specifications of pipes and enhance the versatility of the equipment.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A high-frequency straight seam welded pipe equipment, comprising a base (1), wherein a mounting frame (101) is fixedly connected to the base (1), characterized in that, Also includes: Mounting seats (102) are symmetrically fixedly connected to both sides of the base (1). A cylindrical support part (2) is fixedly connected to the base (1). The support part (2) is hollow, and a cooling pipe (4) is provided inside the support part (2). The cooling pipe (4) is spirally arranged. The clamp is mounted on the mounting base (102) and is used in conjunction with the support (2); A sliding seat (302) is slidably connected to the mounting bracket (101); The welding head (305) is vertically connected to the sliding seat (302); The spray nozzle (405) is fixedly mounted on the sliding seat (302) by a fixing bracket (304); The spray nozzle (405) is connected to the outlet end of the cooling pipe (4) through the second liquid delivery pipe (404); A liquid supply component is provided on the mounting bracket (101) and is used to supply coolant to the inlet end of the cooling pipe (4).

2. The high-frequency straight seam welded pipe equipment according to claim 1, characterized in that, The liquid supply component includes a liquid storage tank (402) and a liquid supply pump (401) fixedly installed on the mounting bracket (101). The input end of the liquid supply pump (401) is connected to the liquid storage tank (402), and the output end is connected to the liquid inlet of the cooling pipe (4) through a liquid delivery pipe (403).

3. The high-frequency straight seam welded pipe equipment according to claim 1, characterized in that, An electric telescopic rod (303) is fixedly connected to the sliding seat (302), the fixing frame (304) is fixedly connected to the output end of the electric telescopic rod (303), and the welding head (305) is fixedly installed on the fixing frame (304).

4. The high-frequency straight seam welded pipe equipment according to claim 3, characterized in that, A lead screw (3) is rotatably connected to the mounting bracket (101), a guide rod (301) is fixedly connected to the mounting bracket (101), a sliding seat (302) is slidably connected to the guide rod (301) and threadedly connected to the lead screw (3), a motor (306) is fixedly mounted on the mounting bracket (101), and the lead screw (3) is fixedly connected to the output end of the motor (306).

5. The high-frequency straight seam welded pipe equipment according to claim 1, characterized in that, The fixture includes an arc-shaped clamping plate (201) connected to a mounting base (102). The mounting base (102) is provided with a driving unit, which is used to drive the two arc-shaped clamping plates (201) on the mounting base (102) to move synchronously towards each other or in opposite directions.

6. The high-frequency straight seam welded pipe equipment according to claim 5, characterized in that, The drive unit includes a cylinder (202), which is fixedly connected to the mounting base (102), and the arc-shaped clamping plate (201) is fixedly connected to the output end of the cylinder (202).

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