Limiting device for square tube welding

Abstract

The utility model discloses a limiting device for square tube welding, and particularly relates to the field of welding equipment, the limiting device comprises a base, the middle part of the outer top surface of the base is rotatably connected with a supporting plate, the top surface of the supporting plate is fixedly provided with a plurality of fixing frames, the plurality of fixing frames are arranged at equal intervals, and the interiors of the fixing frames are slidably connected with limiting frames; a plurality of moving grooves are formed in the top face of the supporting plate. According to the limiting device for square tube welding, in actual work, a square tube to be welded is inserted into the limiting frame, a second threaded rod is rotated, the square tube can be clamped and limited by a fixing plate, a micro motor drives a first threaded rod to rotate, and then two moving blocks can move in the opposite directions; and the two supporting arms can push the limiting frame to ascend and descend, so that the heights of the multiple clamped and limited square pipes can be independently adjusted, and the multiple square pipes and multiple welding points with different heights can be welded conveniently.

Description

Technical Field

[0001] The utility model relates to the field of welding equipment, in particular to a limiting device for square tube welding. Background Art

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that uses heating, high temperature or high pressure to join metals or other thermoplastic materials such as plastics. Welding technology is mainly used on metal materials, such as square tubes. When welding square tubes, a limit device is required to prevent the square tubes from shifting during the welding process, which affects the welding effect.

[0003] After searching, for example, the utility model with the announcement number CN219254613U discloses a limiting device for square tube welding, including a base, support columns are respectively arranged on both sides above the base, a limiting block is arranged above the base, and the limiting block rotates between the two support columns, and a plurality of limiting grooves for plugging in square tubes are opened inside the limiting block. The utility model can clamp and limit a plurality of square tubes at the same time, but during the use of the utility model, a plurality of clamped and limited square tubes are at the same height, and it is inconvenient to adjust the height of a single square tube. Therefore, when welding a plurality of square tubes, it is inconvenient if a plurality of welding points have different heights. Therefore, in order to solve the above defects, the utility model proposes a limiting device for square tube welding. Utility Model Content

[0004] The main purpose of the utility model is to provide a limiting device for square tube welding, which can effectively solve the problem that the limiting device in the prior art is inconvenient when welding multiple square tubes if multiple welding points have different heights.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A limiting device for square tube welding comprises a base, a support plate is rotatably connected to the middle part of the outer top surface of the base, a plurality of fixing frames are fixedly installed on the top surface of the support plate, and the plurality of fixing frames are arranged at equal intervals, and the internal sliding connection of the fixing frames is connected to a limiting frame to limit the square tube to be welded, a plurality of movable grooves are opened on the top surface of the support plate, and the plurality of movable grooves correspond to the plurality of fixing frames one by one, and the plurality of movable grooves are respectively located below the plurality of fixing frames, a first threaded rod is rotatably connected to one side of the inner part of the movable groove, and a sliding rod is fixedly installed on the other side of the inner part of the movable groove, two movable blocks are threadedly connected to the outer surface of the first threaded rod, and the two movable blocks are slidably connected to the sliding rod, the top surfaces of the two movable blocks are hinged with support arms, and the ends of the two support arms away from the movable blocks are hinged to the outer bottom surface of the limiting frame.

[0007] Preferably, two second threaded rods are threadedly connected to the left and right sides of the interior of the limit frame, and the four second threaded rods are rotatably connected to a fixed plate at one end located inside the limit frame, and four telescopic rods are fixedly installed on the left and right sides of the inner wall of the limit frame, and the eight telescopic rods are fixedly connected to the four fixed plates respectively.

[0008] Preferably, a micro motor is fixedly mounted on one side of the outer surface of the support plate, and an output end of the micro motor is fixedly connected to a first threaded rod, and the outer surface of the first threaded rod is provided with two opposite threads.

[0009] Preferably, a rotating shaft is rotatably connected inside the base, and the rotating shaft is fixedly connected to the support plate, a gear is fixedly installed on the outer surface of the rotating shaft on one side inside the base, a rack is slidably connected to one side inside the base, and the rack is meshed with the gear, a cylinder is fixedly installed on one side of the rack inside the base, and the output end of the cylinder is fixedly connected to the rack.

[0010] Preferably, a through hole is opened in the middle of the outer top surface of the fixing frame, a scale is fixedly installed in the middle of the outer top surface of the limit frame, and the scale extends to the outside of the fixing frame through the through hole, and a pointer is fixedly installed on one side of the top surface of the fixing frame.

[0011] Preferably, the outer bottom surface of the base is rotatably connected with four universal self-locking wheels, and a rotating handle is fixedly mounted on one end of the second threaded rod located outside the limiting frame.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a limiting device for square tube welding. By arranging a plurality of fixing frames and a plurality of moving grooves, in actual work, a square tube to be welded is inserted into a limiting frame, and a second threaded rod is rotated so that a fixing plate can clamp and limit the square tube, and a micro motor drives the first threaded rod to rotate so that two moving blocks can move in opposite directions, so that two supporting arms can push the limiting frame to be lifted or lowered, thereby making it possible to individually adjust the heights of a plurality of clamped and limited square tubes, thereby facilitating welding of a plurality of square tubes with a plurality of welding points at different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

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

[0016] Figure 3 This is a schematic diagram of the limit frame structure of the utility model;

[0017] Figure 4This is a schematic diagram of the cross-sectional structure of the base of the utility model;

[0018] Figure 5 It is a schematic diagram of the top view structure of the fixing frame of the utility model.

[0019] In the figure: 1, base; 2, universal self-locking wheel; 3, support plate; 4, fixed frame; 301, moving groove; 302, sliding rod; 303, moving block; 304, supporting arm; 305, first threaded rod; 306, micro motor; 401, limit frame; 4011, second threaded rod; 4012, telescopic rod; 4013, fixed plate; 101, gear; 102, rack; 103, cylinder; 104, rotating shaft; 4021, through hole; 4022, scale; 4023, pointer. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] The utility model discloses a limiting device for square tube welding, such as Figure 1-Figure 5 As shown, it includes a base 1 , a support plate 3 is rotatably connected to the middle of the outer top surface of the base 1 , and the support plate 3 can rotate on the outer top surface of the base 1 .

[0022] A plurality of fixing frames 4 are fixedly mounted on the top surface of the support plate 3, and the fixing frames 4 are arranged at equal intervals. The fixing frames 4 are internally slidably connected to the limiting frame 401, and the square tube to be welded is inserted into the limiting frame 401 to limit its position.

[0023] A plurality of movable grooves 301 are provided on the top surface of the support plate 3, and the plurality of movable grooves 301 correspond one to one with the plurality of fixed frames 4, and the plurality of movable grooves 301 are respectively located below the plurality of fixed frames 4, and a first threaded rod 305 is rotatably connected to one side of the interior of the movable groove 301, and a sliding rod 302 is fixedly installed on the other side of the interior of the movable groove 301, and two movable blocks 303 are threadedly connected to the outer surface of the first threaded rod 305, and the two movable blocks 303 are both slidably connected to the sliding rod 302, and when the first threaded rod 305 rotates, the two movable blocks 303 can be moved along the sliding rod 302.

[0024] The top surfaces of the two moving blocks 303 are hinged with support arms 304, and the ends of the two support arms 304 away from the moving blocks 303 are hinged to the outer bottom surface of the limit frame 401, a micro motor 306 is fixedly installed on one side of the outer surface of the support plate 3, and the output end of the micro motor 306 is fixedly connected to the first threaded rod 305, and the outer surface of the first threaded rod 305 is provided with two opposite threads, when the micro motor 306 drives the first threaded rod 305 to rotate, the two moving blocks 303 can be moved in opposite directions along the sliding rod 302, when the two moving blocks 303 approach each other, the two support arms 304 will push the limit frame 401 to rise, when the two moving blocks 303 move away from each other, the two support arms 304 will drive the limit hole frame to descend, thereby adjusting the height of the square tube in the limit frame 401, so that the heights of multiple square tubes can be adjusted separately.

[0025] Two second threaded rods 4011 are threadedly connected on both the left and right sides inside the limit frame 401, a turning handle is fixedly installed on one end of the second threaded rod 4011 located outside the limit frame 401, and the four second threaded rods 4011 are rotatably connected to a fixing plate 4013 at one end located inside the limit frame 401. By rotating the second threaded rod 4011, the fixing plate 4013 can be pushed to move.

[0026] Four telescopic rods 4012 are fixedly installed on the left and right sides of the inner wall of the limit frame 401, and the eight telescopic rods 4012 are fixedly connected to the four fixed plates 4013 respectively. When the fixed plates 4013 move, the telescopic rods 4012 are driven to extend and retract, and the square tube is inserted into the limit frame 401. The second threaded rod 4011 is rotated to move the four fixed plates 4013 toward one side of the square tube to clamp and limit the square tube.

[0027] The base 1 is internally rotatably connected with a rotating shaft 104, and the rotating shaft 104 is fixedly connected to the support plate 3. When the rotating shaft 104 rotates, it will drive the support plate 3 to rotate, and then drive the multiple clamped and limited square tubes to rotate horizontally to adjust their horizontal angles.

[0028] A gear 101 is fixedly installed on one side of the outer surface of the rotating shaft 104 located inside the base 1, and a rack 102 is slidably connected to one side of the inner side of the base 1, and the rack 102 is meshed with the gear 101. A cylinder 103 is fixedly installed on one side of the rack 102 inside the base 1, and the output end of the cylinder 103 is fixedly connected to the rack 102. The cylinder 103 pushes the rack 102 to move, and the rack 102 pushes the gear 101 to rotate, which can drive the rotating shaft 104 to rotate.

[0029] A through hole 4021 is provided in the middle of the outer top surface of the fixing frame 4, a scale 4022 is fixedly installed in the middle of the outer top surface of the limit frame 401, and the scale 4022 extends to the outside of the fixing frame 4 through the through hole 4021, and a pointer 4023 is fixedly installed on one side of the top surface of the fixing frame 4. When the limit frame 401 is raised or lowered, the scale 4022 will be driven to rise or fall, and through the scale 4022 and the pointer 4023, the staff can intuitively observe the height difference between the multiple square tubes that are clamped and limited.

[0030] The outer bottom surface of the base 1 is rotatably connected with four universal self-locking wheels 2, so that a worker can push the base 1 to move, so as to move a plurality of clamped and limited square tubes to the welding point.

[0031] The working principle of the utility model is as follows: first, insert a plurality of square tubes to be welded into a plurality of limit frames 401 in sequence, rotate the second threaded rod 4011 to move the fixing plate 4013 toward one side of the square tube to clamp and limit the square tube, and then push the base 1 to move the plurality of clamped and limited square tubes to the welding point, and then adjust the heights of the plurality of square tubes individually according to the heights of the plurality of welding points, and the micro motor 306 drives the first threaded rod 305 to rotate, so that the two moving blocks 303 can move in opposite directions, so that the two support arms 304 can push the limit frames 401 to be raised and lowered, and the height of the square tubes can be adjusted, and the scale 4022 and the pointer 4023 are used so that the staff can intuitively observe the height difference between the plurality of clamped and limited square tubes, and when the height of the square tube is adjusted to be the same as the welding point, welding can be performed.

[0032] 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 limiting device for square tube welding, comprising a base (1), characterized in that: A support plate (3) is rotatably connected to the middle of the outer top surface of the base (1); a plurality of fixing frames (4) are fixedly mounted on the top surface of the support plate (3); and the plurality of fixing frames (4) are arranged at equal intervals; the fixing frames (4) are internally slidably connected to a limiting frame (401) to limit the position of the square tube to be welded; a plurality of movable grooves (301) are formed on the top surface of the support plate (3); and the plurality of movable grooves (301) correspond one-to-one to the plurality of fixing frames (4); the plurality of movable grooves (301) are respectively located below the plurality of fixing frames (4); A first threaded rod (305) is rotatably connected to one side of the interior of the movable groove (301), and a sliding rod (302) is fixedly installed on the other side of the interior of the movable groove (301); two movable blocks (303) are threadedly connected to the outer surface of the first threaded rod (305), and the two movable blocks (303) are slidably connected to the sliding rod (302); the top surfaces of the two movable blocks (303) are hinged with support arms (304), and the ends of the two support arms (304) away from the movable blocks (303) are hinged to the outer bottom surface of the limit frame (401).

2. A limiting device for square tube welding according to claim 1, characterized in that: Two second threaded rods (4011) are threadedly connected to the left and right sides of the interior of the limit frame (401), and one end of the four second threaded rods (4011) located inside the limit frame (401) is rotatably connected to a fixed plate (4013), and four telescopic rods (4012) are fixedly installed on the left and right sides of the inner wall of the limit frame (401), and the eight telescopic rods (4012) are fixedly connected to the four fixed plates (4013) respectively.

3. A limiting device for square tube welding according to claim 1, characterized in that: A micro motor (306) is fixedly mounted on one side of the outer surface of the support plate (3), and the output end of the micro motor (306) is fixedly connected to the first threaded rod (305), and the outer surface of the first threaded rod (305) is provided with two opposite threads.

4. A limiting device for square tube welding according to claim 1, characterized in that: The base (1) is rotatably connected to a rotating shaft (104) inside, and the rotating shaft (104) is fixedly connected to the support plate (3); a gear (101) is fixedly installed on a side of the outer surface of the rotating shaft (104) located inside the base (1); a rack (102) is slidably connected to one side of the inside of the base (1), and the rack (102) meshes with the gear (101); a cylinder (103) is fixedly installed on one side of the rack (102) inside the base (1), and an output end of the cylinder (103) is fixedly connected to the rack (102).

5. The limiting device for square tube welding according to claim 1 is characterized in that: A through hole (4021) is provided in the middle of the outer top surface of the fixing frame (4), a scale (4022) is fixedly mounted in the middle of the outer top surface of the limiting frame (401), and the scale (4022) extends to the outside of the fixing frame (4) through the through hole (4021), and a pointer (4023) is fixedly mounted on one side of the top surface of the fixing frame (4).

6. A limiting device for square tube welding according to claim 2, characterized in that: The outer bottom surface of the base (1) is rotatably connected to four universal self-locking wheels (2), and a rotating handle is fixedly mounted on one end of the second threaded rod (4011) located outside the limiting frame (401).

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