Fixing device for steel pipe welding

Abstract

The utility model provides a fixing device for steel pipe welding, which belongs to the technical field of steel pipe welding and fixing and comprises a base, supporting seats are mounted on the base, an adjusting mechanism for adjusting the distance between the supporting seats is mounted in the base, and clamping mechanisms for clamping and fixing steel pipes are mounted on the supporting seats. The welding device solves the problems that when an existing device is used for welding steel pipes, due to the fact that the steel pipes to be welded are insufficient in length and cannot be spliced together, the welding operation difficulty is large, the welding work is difficult, meanwhile, in the welding process, the steel pipes to be welded are not easy to align, the two welded steel pipes are prone to dislocation, and the welding quality is poor. And the welding effect is seriously influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe welding and fixing, and specifically relates to a fixing device for steel pipe welding. Background Art

[0002] Steel pipe is a hollow, long, round steel product, which is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural components.

[0003] The existing CN214444289U discloses a clamping device for steel structure welding, comprising a steel pipe for building a steel structure, wherein one end of two adjacent steel pipes are connected, and a fixing sleeve with an opening is provided on one of the steel pipes, and the fixing sleeve is locked and fixed on the steel pipe by two clamping mechanisms arranged opposite to each other near the end, and a rotatable adjusting sleeve is provided on the side of the fixing sleeve facing the other steel pipe, the adjusting sleeve is arranged with an opening, and the adjusting sleeve is sleeved on the outside of the other steel pipe, and adjusting screws are screwed and inserted into the two ends of the adjusting sleeve near the opening;

[0004] When the device is used to weld steel pipes, the steel pipes to be welded are not long enough to be spliced ​​together, which makes the welding operation difficult and the welding work difficult. At the same time, during the welding process, the steel pipes to be welded are not easy to align, which makes the two welded steel pipes easily misaligned, thus seriously affecting the welding effect. Summary of the invention

[0005] The utility model provides a fixing device for steel pipe welding, which aims to solve the problem that when welding steel pipes, the existing device cannot be spliced ​​together due to the insufficient length of the steel pipes to be welded, resulting in greater difficulty in welding operation and difficult welding work. At the same time, during the welding process, the steel pipes to be welded are not easy to align, resulting in easy misalignment of the two welded steel pipes, which seriously affects the welding effect.

[0006] An embodiment of the utility model provides a fixing device for steel pipe welding, comprising a base, a support seat is installed on the base, an adjustment mechanism for adjusting the distance between the support seats is installed inside the base, and a clamping mechanism for clamping and fixing the steel pipe is installed on the support seat.

[0007] Furthermore, the adjustment mechanism includes a first rotating shaft installed on the base and a bidirectional screw rod rotatably connected to the inside of the base, one end of the first rotating shaft extends to the inside of the base and is fixedly connected to a first bevel gear, one end of the bidirectional screw rod is fixedly connected to a second bevel gear, the first bevel gear and the second bevel gear are meshed with each other, and both ends of the bidirectional screw rod are threadedly connected to movable blocks.

[0008] By adopting the above technical solution, when it is necessary to weld steel pipes of different lengths, the spacing between the steel pipes can be adjusted by a bidirectional screw rod, thereby reducing the difficulty of welding.

[0009] Furthermore, the clamping mechanism includes a disc fixedly connected to the top of the support seat, the interior of the disc is rotatably connected to a cylindrical gear, the interior of the disc is also rotatably connected to a threaded rod and fixedly connected to a first guide rod and a second guide rod, the threaded rod, the first guide rod and the second guide rod are centrally symmetrically distributed relative to the cylindrical gear, a first slider is threadedly connected to the threaded rod, the first guide rod and the second guide rod are respectively slidably connected to a second slider and a third slider, the first slider, the second slider and the third slider are all provided with racks on one side facing the cylindrical gear and are all meshed with the cylindrical gear.

[0010] By adopting the above technical solution, the first slider slides by rotating the threaded rod, and then the first slider drives the cylindrical gear to rotate, and the cylindrical gear drives the second slider and the third slider to slide on the first guide rod and the second guide rod respectively, thereby achieving the purpose of synchronous sliding of the first slider, the second slider and the third slider.

[0011] Furthermore, one end of the threaded rod is fixedly connected to a rotating tube, and the rotating tube extends to the outside of the disc and is rotatably connected to the wall surface of the disc.

[0012] By adopting the above technical solution, since the threaded rod is fixedly connected to the rotating tube, when the rotating tube is rotated, the threaded rod can be driven to rotate, thereby achieving the purpose of sliding the first sliding block.

[0013] Furthermore, a through hole for the steel pipe to pass through is opened at the center of the disc, and the size of the through hole is the same as the inner diameter of the cylindrical gear.

[0014] By adopting the above technical solution, it is convenient to pass the steel pipe to be welded through the through hole.

[0015] Furthermore, three sliding grooves are provided on the surface of the disc, and linkage blocks are slidably connected in the three sliding grooves. The bottoms of the three linkage blocks are provided with tooth marks, and the upper surfaces of the first slider, the second slider and the third slider are provided with tooth grooves. The three linkage blocks are meshed with the corresponding first slider, the second slider and the third slider.

[0016] By adopting the above technical solution, when the first slider, the second slider and the third slider slide, the three linkage blocks meshing with the first slider, the second slider and the third slider will also slide synchronously in the slide groove toward the center point of the through hole.

[0017] Furthermore, the linkage block is in a concave shape, a locking pile is snap-connected in the concave cavity of the linkage block, and a fixing bar is connected to the locking pile via bolts.

[0018] By adopting the above technical solution, the sliding of the linkage block drives the locking pile to move, and at the same time, the fixing bar fixedly connected to the locking pile will move synchronously with the locking pile, thereby clamping and fixing the steel pipe passing through the through hole, avoiding dislocation of the steel pipe due to unreliable fixation during welding, thereby affecting the welding effect.

[0019] The beneficial effects of the utility model are:

[0020] 1. The utility model sets an adjustment mechanism. When welding a steel pipe with a shorter length, the first rotating shaft can be rotated to rotate the first bevel gear, and then the second bevel gear is rotated. The bidirectional screw will rotate under the drive of the first bevel gear and the second bevel gear, and then the movable blocks on the bidirectional screw will slide toward each other synchronously, driving the support seat to slide toward each other, and then the clamping mechanism is moved toward each other, which is convenient for splicing two steel pipes and greatly reduces the difficulty of welding operation.

[0021] 2. The utility model sets a clamping mechanism. When the steel pipe needs to be clamped and fixed, the threaded rod is rotated by rotating the rotating tube, thereby driving the first slider to slide, and the first slider drives the cylindrical gear to rotate, and then the second slider and the third slider slide synchronously, so that the linkage block slides in the slide groove along the tooth marks on the first slider, the second slider and the third slider, and then the three fixing bars slide synchronously toward the center point of the through hole to clamp and fix the steel pipe, thereby avoiding dislocation during welding due to unreliable fixation of the steel pipe, thereby seriously affecting the welding effect.

[0022] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the adjustment mechanism of an embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of the front view structure of the clamping mechanism of an embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the internal structure of the clamping mechanism of an embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of the side view structure of a disc in an embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram of the connection structure of the slider, linkage block, engaging pile and fixing bar of the embodiment of the utility model;

[0030] : Reference numerals: 100, base; 200, adjustment mechanism; 201, bidirectional screw; 202, movable block; 203, first bevel gear; 204, second bevel gear; 205, first rotating shaft; 300, support seat; 400, clamping mechanism; 401, disc; 402, cylindrical gear; 403, threaded rod; 404, first guide rod; 405, second guide rod; 406, first slider; 407, second slider; 408, third slider; 409, rotating tube; 410, linkage block; 411, engaging pile; 412, fixing bar; 413, slide groove; 500, through hole. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 , Figure 2The embodiment of the utility model proposes a fixing device for steel pipe welding, including a base 100, a support seat 300 is installed on the base 100, an adjusting mechanism 200 for adjusting the spacing between the support seats 300 is installed inside the base 100, the adjusting mechanism 200 includes a first rotating shaft 205 installed on the base 100 and a bidirectional screw rod 201 rotatably connected to the inside of the base 100, one end of the first rotating shaft 205 extends to the inside of the base 100 and is fixedly connected to a first bevel gear 203, one end of the bidirectional screw rod 201 is fixedly connected to a second bevel gear 204, the first bevel gear 203 and the second bevel gear 204 are meshed with each other, and both ends of the bidirectional screw rod 201 are threadedly connected with movable blocks 202. When it is necessary to weld steel pipes of different lengths, the spacing between the steel pipes can be adjusted by the bidirectional screw rod 201, thereby reducing the difficulty of welding.

[0033] Reference Figure 3 , Figure 4 A clamping mechanism 400 for clamping and fixing the steel pipe is installed on the support seat 300. The clamping mechanism 400 includes a disc 401 fixedly connected to the top of the support seat 300. The inside of the disc 401 is rotatably connected to a cylindrical gear 402. A through hole 500 for the steel pipe to pass through is opened at the center of the disc 401. The size of the through hole 500 is the same as the inner diameter of the cylindrical gear 402, which is convenient for passing the steel pipe to be welded through the through hole 500. The inside of the disc 401 is also rotatably connected to a threaded rod 403 and a first guide rod 404 and a second guide rod 405 are fixedly connected. The threaded rod 403, the first guide rod 404 and the second guide rod 405 are symmetrically distributed relative to the cylindrical gear 402. A first slider 406 is threadedly connected to the threaded rod 403. One end of the threaded rod 403 is fixedly connected to a rotating tube 409. The rotating tube 409 extends to the outside of the disc 401 and is connected to the disc 401. The wall surface is rotatably connected. Since the threaded rod 403 is fixedly connected to the rotating tube 409, when the rotating tube 409 is rotated, the threaded rod 403 can be driven to rotate, so as to achieve the purpose of sliding the first slider 406. The first guide rod 404 and the second guide rod 405 are respectively slidably connected with the second slider 407 and the third slider 408. The first slider 406, the second slider 407 and the third slider 408 are all provided with racks on one side of the cylindrical gear 402 and are all meshed with the cylindrical gear 402. The first slider 406 is slid by the rotation of the threaded rod 403, and then the first slider 406 drives the cylindrical gear 402 to rotate. The cylindrical gear 402 drives the second slider 407 and the third slider 408 to slide on the first guide rod 404 and the second guide rod 405 respectively, thereby achieving the purpose of synchronous sliding of the first slider 406, the second slider 407 and the third slider 408.

[0034] Reference Figure 3 , Figure 4 , Figure 6Three sliding grooves 413 are provided on the surface of the disk 401, and linkage blocks 410 are slidably connected in the three sliding grooves 413. The bottoms of the three linkage blocks 410 are provided with tooth marks. The upper surfaces of the first slider 406, the second slider 407 and the third slider 408 are provided with tooth grooves. The three linkage blocks 410 and the corresponding first slider 406, the second slider 407 and the third slider 408 are meshed with each other. When the first slider 406, the second slider 407 and the third slider 408 slide, the three linkage blocks 410 meshed with the first slider 406, the second slider 407 and the third slider 408 will also slide synchronously in the sliding groove 413 toward the center point of the through hole 500.

[0035] Reference Figure 5 , Figure 6 The linkage block 410 is concave-shaped, and a locking pile 411 is engaged in the concave cavity of the linkage block 410. A fixing bar 412 is connected to the locking pile 411 through bolts. The sliding of the linkage block 410 drives the locking pile 411 to move. At the same time, the fixing bar 412 fixedly connected to the locking pile 411 will move synchronously with the locking pile 411, thereby clamping and fixing the steel pipe passing through the through hole 500, thereby avoiding dislocation of the steel pipe due to unreliable fixation during welding, thereby affecting the welding effect.

[0036] The specific implementation method is as follows: when welding is required, the steel pipe to be welded is placed in the through hole 500, the rotating tube 409 is rotated, the threaded rod 403 is rotated, the first slider 406 slides on the threaded rod 403, and then the first slider 406 drives the cylindrical gear 402 to rotate, and the cylindrical gear 402 drives the second slider 407 and the third slider 408 to slide on the first guide rod 404 and the second guide rod 405 respectively. When the first slider 406, the second slider 407 and the third slider 408 slide synchronously, the three linkage blocks 410 will also be in the slide groove 413, along the tooth grooves on the upper surfaces of the first slider 406, the second slider 407 and the third slider 408 toward the center of the through hole 500. The two ends of the two-way screw rod 201 slide toward each other, and the movable blocks 202 at both ends of the two-way screw rod 201 slide toward each other, thereby driving the support seat 300 and the disc 401 on the support seat 300 to approach each other, thereby achieving the purpose of splicing steel pipes of insufficient length, and greatly reducing the difficulty of welding work.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fixing device for steel pipe welding, comprising a base (100), characterized in that: A support seat (300) is installed on the base (100), an adjustment mechanism (200) for adjusting the distance between the support seats (300) is installed inside the base (100), a clamping mechanism (400) for clamping and fixing the steel pipe is installed on the support seat (300), the adjustment mechanism (200) comprises a first rotating shaft (205) installed on the base (100) and a bidirectional screw rod (201) rotatably connected to the inside of the base (100), one end of the first rotating shaft (205) extends to the inside of the base (100) and is fixedly connected to a first bevel gear (203), one end of the bidirectional screw rod (201) is fixedly connected to a second bevel gear (204), the first bevel gear (203) and the second bevel gear (204) are meshed with each other, and both ends of the bidirectional screw rod (201) are threadedly connected to movable blocks (202), and the movable block (202) is fixedly connected to the bottom of the support seat (300).

2. A steel pipe welding fixing device according to claim 1, characterized in that: The clamping mechanism (400) comprises a disc (401) fixedly connected to the top of the support seat (300); a cylindrical gear (402) is rotatably connected inside the disc (401); a threaded rod (403) is rotatably connected inside the disc (401) and a first guide rod (404) and a second guide rod (405) are fixedly connected thereto; the threaded rod (403), the first guide rod (404) and the second guide rod (405) are centrally symmetrically distributed relative to the cylindrical gear (402); a first slider (406) is threadedly connected to the threaded rod (403); a second slider (407) and a third slider (408) are slidably connected to the first guide rod (404) and the second guide rod (405) respectively; the first slider (406), the second slider (407) and the third slider (408) are all provided with racks on one side facing the cylindrical gear (402) and are all meshed with the cylindrical gear (402).

3. A steel pipe welding fixing device according to claim 2, characterized in that: One end of the threaded rod (403) is fixedly connected to a rotating tube (409), and the rotating tube (409) extends to the outside of the disk (401) and is rotatably connected to the wall surface of the disk (401).

4. A steel pipe welding fixing device according to claim 3, characterized in that: A through hole (500) for the steel pipe to pass through is provided at the center of the disc (401), and the size of the through hole (500) is the same as the inner diameter of the cylindrical gear (402).

5. A steel pipe welding fixture according to claim 3, characterized in that: The surface of the disk (401) is provided with three sliding grooves (413), and linkage blocks (410) are slidably connected in the three sliding grooves (413). The bottoms of the three linkage blocks (410) are provided with tooth marks, and the upper surfaces of the first slider (406), the second slider (407) and the third slider (408) are provided with tooth grooves. The three linkage blocks (410) are meshed with the corresponding first slider (406), the second slider (407) and the third slider (408).

6. A steel pipe welding fixture according to claim 5, characterized in that: The linkage block (410) is in a concave shape, a locking pile (411) is snap-connected in the concave cavity of the linkage block (410), and a fixing strip (412) is connected to the locking pile (411) via bolts.

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