A positioning fixture for steel welding

Abstract

This utility model relates to the field of steel welding technology, specifically a positioning fixture for steel welding, comprising: a base plate, on which two fixing rings are symmetrically fixedly installed at the upper end; the outer end of the fixing rings is rotatably connected to a rotating ring via a bearing; the outer end of the rotating ring is fixedly installed with a toothed ring; and a driving component is installed between the fixing rings and the base plate to drive the fixing rings to rotate. In this utility model, one end of a stainless steel round tube is first passed through the fixing ring on one side of the upper end of the base plate, and a motor is started to drive the rotating ring to rotate, moving several clamping plates and elastic pads to one side of the stainless steel round tube to clamp it. Then, one end of another stainless steel round tube is passed through the fixing ring on the other side of the upper end of the base plate, so that the ends of the two round tubes to be welded contact. The motor is started to fix the other stainless steel round tube, and the ends of the two stainless steel round tubes to be welded are aligned, facilitating rapid fixing and welding, and improving welding efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of steel welding technology, specifically a positioning tool for steel welding. Background Technology

[0002] Stainless steel pipe making machines are essential production equipment for stainless steel pipe factories, especially for manufacturers producing pipelines for water supply, oil, gas, and other media. Existing stainless steel pipe making machines are difficult to operate during welding, have a high scrap rate, and require highly skilled professional welding technicians to operate. Furthermore, the welding molds currently used are manually adjustable metal parts for forming the weld seam. Improper adjustment during use leads to uneven weld seams, and the wear from welding with stainless steel pipes further degrades the welding performance, resulting in an increased scrap rate. In such cases, manual grinding or replacement of the entire welding mold is the only solution.

[0003] Chinese patent CN218695312U discloses a stainless steel pipe weld mold, which includes a mold body with a hollow cavity structure and open ends. The discharge end of the mold body is provided with a first forming block positioning groove and a second forming block positioning groove. The first forming block positioning groove and the second forming block positioning groove are symmetrically arranged. The first forming block and the second forming block positioning groove are respectively provided in the first forming block positioning groove and the second forming block positioning groove. The first forming block compresses the butt weld to ensure that the stainless steel pipe weld is completely butted together, so that the stainless steel pipe can be completely welded together during welding and to avoid incomplete welding. The second forming block serves to support the stainless steel pipe.

[0004] However, the aforementioned patent makes it inconvenient to quickly connect and align the weld joints of stainless steel round tubes with diameters that pass through, resulting in low welding efficiency and low welding quality. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning fixture for steel welding to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for steel welding, comprising: a base plate, two fixing rings symmetrically fixedly installed on the upper end of the base plate, a rotating ring rotatably connected to the outer end of the fixing rings via bearings, a toothed ring fixedly installed on the outer end of the rotating rings, and a driving component installed between the fixing rings and the base plate for driving the fixing rings to rotate;

[0007] One side of the fixed ring is rotatably connected to several rotating cylinders via a rotating shaft. One end of each rotating cylinder is slidably connected to a moving rod, and one end of the moving rod is rotatably connected to a clamping plate.

[0008] One end of the rotating ring is rotatably connected to several drive rods via a rotating shaft, and one end of each drive rod is rotatably connected to a moving rod.

[0009] Preferably, a support rod is fixedly installed on the outer wall of the fixing ring, and the end of the support rod away from the fixing ring is fixed to the upper end of the base plate.

[0010] Preferably, the inner wall of the bearing is fixedly sleeved on the outer wall of the fixed ring, and the outer wall of the bearing is fixedly sleeved on the inner end of the rotating ring.

[0011] Preferably, a stop is fixedly installed at the opening of the rotating cylinder, and one end of the moving rod is inserted into the rotating cylinder and a slider is fixedly installed thereon.

[0012] Preferably, the end of the moving rod away from the rotating cylinder is rotatably connected to a rotating block, and the rotating block is fixed on the outer wall of the clamping plate.

[0013] Preferably, an elastic pad is fixedly installed at the end of the clamping plate away from the rotating block.

[0014] Preferably, the driving component includes a fixing plate fixed to the upper end of the base plate, a motor fixedly mounted on one side of the fixing plate, and a gear fixedly mounted on the output end of the motor, with the outer wall of the gear meshing with the outer wall of the gear ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention first inserts one end of a stainless steel tube through a fixing ring on one side of the upper part of the base plate, and then starts a motor to drive the rotating ring to rotate, moving several clamping plates and elastic pads to one side of the stainless steel tube to clamp it. Then, one end of another stainless steel tube is inserted through a fixing ring on the other side of the upper part of the base plate, so that the ends of the two tubes to be welded are in contact. The motor is then started to fix the other stainless steel tube, and the ends of the two stainless steel tubes to be welded are aligned, which facilitates quick fixing and welding, and improves the efficiency and quality of welding. Attached Figure Description

[0017] Figure 1 This is a front view of the overall structure of this utility model;

[0018] Figure 2 This is a front view of part of the structure of this utility model;

[0019] Figure 3 This is a top view of part of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram showing the connection between the drive rod and the moving rod of this utility model;

[0021] Figure 5 This is a schematic diagram of the unfolded drive rod and moving rod of this utility model.

[0022] In the diagram: 1. Base plate; 2. Support rod; 3. Fixed ring; 4. Bearing; 5. Rotating ring; 6. Gear ring; 7. Fixed plate; 8. Motor; 9. Gear; 10. Rotating cylinder; 11. Drive rod; 12. Stop block; 13. Moving rod; 14. Slider; 15. Rotating block; 16. Clamping plate; 17. Elastic pad. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a positioning fixture for steel welding, comprising: a base plate 1, two fixing rings 3 symmetrically fixedly installed on the upper end of the base plate 1, a support rod 2 fixedly installed on the outer wall of the fixing ring 3, the end of the support rod 2 away from the fixing ring 3 fixed to the upper end of the base plate 1, supporting the fixing ring 3 on the upper end of the base plate 1, a rotating ring 5 rotatably connected to the outer end of the fixing ring 3 via a bearing 4, the inner wall of the bearing 4 fixedly sleeved on the outer wall of the fixing ring 3, the outer wall of the bearing 4 fixedly sleeved on the inner end of the rotating ring 5, the rotating ring 5 being able to rotate at the outer end of the fixing ring 3, a toothed ring 6 fixedly installed at the outer end of the rotating ring 5, and a driving component installed between the fixing ring 3 and the base plate 1 for driving the fixing ring 3 to rotate.

[0025] The driving component includes a fixed plate 7 fixed to the upper end of the base plate 1. A motor 8 is fixedly installed on one side of the fixed plate 7. A gear 9 is fixedly installed at the output end of the motor 8. The outer wall of the gear 9 meshes with the outer wall of the gear ring 6. The motor 8 is a servo motor that can drive the gear 9 to rotate in both directions. When the motor 8 starts, it drives the gear 9 to rotate. The gear 9 drives the gear ring 6 to rotate with the rotating ring 5 outside the fixed ring 3.

[0026] A number of rotating cylinders 10 are rotatably connected to one side of the fixed ring 3 via a rotating shaft. A moving rod 13 is slidably connected to one end of the rotating cylinder 10. A stop block 12 is fixedly installed at the opening of the rotating cylinder 10. One end of the moving rod 13 is inserted into the rotating cylinder 10 and a slider 14 is fixedly installed thereon. The slider 14 slides inside the rotating cylinder 10, and the stop block 12 limits its movement to prevent the moving rod 13 from sliding out of the rotating cylinder 10. A clamping plate 16 is rotatably connected to one end of the moving rod 13. A rotating block 15 is rotatably connected to the end of the moving rod 13 away from the rotating cylinder 10. The rotating block 15 is fixed to the outer wall of the clamping plate 16. An elastic pad 17 is fixedly installed at the end of the clamping plate 16 away from the rotating block 15. The elastic pad 17 is made of elastic rubber and can be pressed to adhere to the outer wall of stainless steel pipes of different diameters, increasing the friction between the clamping plate 16 and the stainless steel pipe and fixing them firmly.

[0027] One end of the rotating ring 5 is rotatably connected to several drive rods 11 via a rotating shaft. One end of the drive rod 11 is rotatably connected to the moving rod 13. When the rotating ring 5 rotates at the outer end of the fixed ring 3, it will move the drive rods 11 synchronously. The drive rods 11 push the moving rod 13 to slide inside the rotating cylinder 10, thereby changing the position of the clamping plate 16 and the elastic pad 17.

[0028] When this device is in operation, first pass one end of a stainless steel round tube through the fixing ring 3 on one side of the upper end of the base plate 1, and start the motor 8 to drive the rotating ring 5 to rotate, moving several clamping plates 16 and elastic pads 17 to one side of the stainless steel round tube to clamp the stainless steel round tube. Then, pass one end of another stainless steel round tube through the fixing ring 3 on the other side of the upper end of the base plate 1, so that the ends of the two round tubes that need to be welded are in contact. Start the motor 8 to fix the other stainless steel round tube, and align the ends of the two stainless steel round tubes that need to be welded, so as to facilitate rapid welding.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for welding steel, comprising: The base plate (1) is characterized in that: two fixed rings (3) are symmetrically fixedly installed on the upper end of the base plate (1), and a rotating ring (5) is rotatably connected to the outer end of the fixed ring (3) through a bearing (4). A toothed ring (6) is fixedly installed on the outer end of the rotating ring (5). A driving component is installed between the fixed ring (3) and the base plate (1) for driving the fixed ring (3) to rotate. A number of rotating cylinders (10) are rotatably connected to one side of the fixed ring (3) via a rotating shaft. A moving rod (13) is slidably connected to one end of the rotating cylinder (10). A clamping plate (16) is rotatably connected to one end of the moving rod (13). An elastic pad (17) is fixedly installed at the end of the clamping plate (16) away from the rotating block (15). One end of the rotating ring (5) is rotatably connected to several drive rods (11) via a rotating shaft, and one end of the drive rod (11) is rotatably connected to the moving rod (13).

2. The positioning fixture for steel welding according to claim 1, characterized in that: A support rod (2) is fixedly installed on the outer wall of the fixed ring (3), and the end of the support rod (2) away from the fixed ring (3) is fixed to the upper end of the base plate (1).

3. The positioning fixture for steel welding according to claim 1, characterized in that: The inner wall of the bearing (4) is fixedly sleeved on the outer wall of the fixed ring (3), and the outer wall of the bearing (4) is fixedly sleeved on the inner end of the rotating ring (5).

4. The positioning fixture for steel welding according to claim 1, characterized in that: A stop block (12) is fixedly installed at the opening of the rotating cylinder (10), and one end of the moving rod (13) is inserted into the rotating cylinder (10) and a slider (14) is fixedly installed thereon.

5. A positioning fixture for steel welding according to claim 1, characterized in that: The end of the moving rod (13) away from the rotating cylinder (10) is rotatably connected to a rotating block (15), and the rotating block (15) is fixed on the outer wall of the clamping plate (16).

6. The positioning fixture for steel welding according to claim 1, characterized in that: The driving component includes a fixing plate (7) fixed to the upper end of the base plate (1), a motor (8) fixedly installed on one side of the fixing plate (7), a gear (9) fixedly installed at the output end of the motor (8), and the outer wall of the gear (9) meshing with the outer wall of the gear ring (6).

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