Weld joint polishing device for thin-wall stainless steel water pipe production

Abstract

The utility model relates to the technical field of stainless steel water pipe production equipment, in particular to a welding seam polishing device for thin-wall stainless steel water pipe production. According to the technical scheme, the device comprises a moving seat, through holes are symmetrically formed in the two sides of the outer surface of the moving seat, spiral springs are arranged in the two through holes, sliding rods are fixedly connected to the tail ends of the two spiral springs, and C-shaped roller frames are fixedly connected to the tail ends of the four sliding rods; four C-shaped roller carriers are fixedly mounted on the upper surface of the movable seat, moving rollers are rotatably mounted in the four C-shaped roller carriers, an electric push rod is fixedly mounted on the lower surface of the movable seat, a lifting plate is fixedly connected to the output end of the electric push rod, a U-shaped grinding frame is fixedly mounted on the upper surface of the lifting plate, and a grinding wheel is rotatably mounted in the U-shaped grinding frame. The stainless steel water pipe inner wall polishing device can conveniently polish welding seams deep in the inner wall of a stainless steel water pipe and is suitable for stainless steel water pipes with different diameters, and applicability is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of stainless steel water pipe production equipment, specifically a weld grinding device for the production of thin-walled stainless steel water pipes. Background Technology

[0002] In the production of stainless steel water pipes, weld grinding is an indispensable and crucial process. After welding, the weld seam of the water pipe often has problems such as unevenness, weld slag residue, and oxide scale. These not only affect the aesthetic appearance of the pipe, but may also cause corrosion risks during actual use, reducing the service life of the water pipe. The grinding process can effectively eliminate the unevenness of the weld seam surface, making it highly smooth and transitioning with the surface of the water pipe body, reducing the resistance during fluid transportation. At the same time, it removes impurities and oxide layers, improves the corrosion resistance of the weld seam, and ensures that the stainless steel water pipe has good quality and performance.

[0003] Currently produced stainless steel water pipes are quite long, and the welds deep inside the pipes are difficult to grind. To address this, we propose a weld grinding device for the production of thin-walled stainless steel water pipes. Utility Model Content

[0004] The purpose of this utility model is to provide a weld grinding device for the production of thin-walled stainless steel water pipes. It has the advantages of being convenient for grinding the weld deep inside the stainless steel water pipe and being applicable to stainless steel water pipes of different diameters, thus improving applicability. It solves the problem that the stainless steel water pipes currently produced are long and the weld deep inside the pipe is not easy to grind.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a weld grinding device for the production of thin-walled stainless steel water pipes, comprising a movable base, through holes symmetrically provided on both sides of the outer surface of the movable base, a helical spring provided inside each of the two through holes, and a sliding rod fixedly connected to the end of each of the two helical springs, a C-shaped roller frame fixedly connected to the end of each of the four sliding rods, and a movable roller rotatably installed inside each of the four C-shaped roller frames, an electric push rod fixedly installed on the lower surface of the movable base, and a lifting plate fixedly connected to the output end of the electric push rod, a U-shaped grinding frame fixedly installed on the upper surface of the lifting plate, and a grinding wheel rotatably installed inside the U-shaped grinding frame.

[0006] Preferably, a grinding motor is fixedly installed on the front surface of the U-shaped grinding frame, and the output end of the grinding motor is connected to the grinding wheel. The grinding motor drives the grinding wheel to rotate, and the grinding wheel grinds the weld seam on the inner wall of the stainless steel water pipe.

[0007] Preferably, a moving motor is fixedly installed on the lower surface of each of the four C-shaped roller frames. The output ends of the four moving motors are respectively connected to the four moving rollers for transmission. The four moving motors drive the four moving rollers to rotate, so that the moving seat can move inside the stainless steel water pipe.

[0008] Preferably, guide sleeves are symmetrically fixedly installed on both sides of the upper surface of the movable seat, and guide rods are symmetrically fixedly connected on both sides of the lower surface of the lifting plate. The two guide rods pass through the two guide sleeves respectively, and the guide rods rise and fall accordingly. The guide sleeves play a guiding and limiting role for the guide rods, and also act on the lifting plate, thereby improving the stability of the lifting plate.

[0009] Preferably, an electrical control box is fixedly installed on one side of the upper surface of the movable seat, and a control line is fixedly connected to the outer surface of the electrical control box. Power and control signals are transmitted to the electrical control box through the control line, and then the electrical control box distributes and controls the grinding motor, the movable motor and the electric push rod.

[0010] Preferably, a traction rope is fixedly connected to the outer surface of the movable seat near the electrical control box, and the outer surface of the traction rope and the outer surface of the control line are fixedly connected. The traction rope plays a traction role when the movable seat moves inside the stainless steel water pipe, and at the same time, it can improve the tensile strength of the control line and prevent the control line from being damaged due to pulling.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting up a movable seat, a spiral spring, a sliding rod, a through hole, a movable roller, a C-shaped roller frame, an electric push rod, a lifting plate, a U-shaped grinding frame, and a grinding wheel, achieves the effect of facilitating the grinding of welds deep inside the inner wall of stainless steel water pipes, and is applicable to stainless steel water pipes of different diameters, thus improving applicability. The movable seat is placed inside the stainless steel water pipe, and the elastic force of the spiral spring acts on the sliding rod, causing the sliding rod to move inside the through hole and making the movable roller contact the inner wall of the stainless steel water pipe. The electric push rod drives the lifting plate to rise and fall, so that the grinding wheel contacts the weld on the inner wall of the stainless steel water pipe. The movable roller rotates and drives the movable seat to move inside the stainless steel water pipe, and the rotation of the grinding wheel grinds the weld on the inner wall of the stainless steel.

[0013] 2. This utility model achieves the effect of improving the stability of the lifting plate by setting a guide rod and a guide sleeve. When the electric push rod drives the lifting plate to rise and fall, the guide rod also rises and falls accordingly. The guide sleeve plays a guiding and limiting role for the guide rod, and also acts on the lifting plate, thereby improving the stability of the lifting plate.

[0014] 3. By setting a traction rope, this utility model facilitates the traction of the moving seat when it moves inside the stainless steel water pipe, and also improves the tensile strength of the control line, preventing the control line from being damaged due to pulling. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial three-dimensional structural diagram of the movable seat of this utility model;

[0017] Figure 3 This is a partial three-dimensional cross-sectional view of the movable seat of this utility model;

[0018] Figure 4 This is a schematic diagram of the main structure of this utility model.

[0019] Reference numerals: 1. Movable seat; 2. Guide sleeve; 3. Guide rod; 4. Lifting plate; 5. U-shaped grinding frame; 6. Grinding wheel; 7. Grinding motor; 8. Electrical control box; 9. Control line; 10. Traction rope; 11. Movable motor; 12. Movable roller; 13. C-shaped roller frame; 14. Sliding rod; 15. Through hole; 16. Helical spring; 17. Electric push rod. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-4 As shown, the present invention proposes a weld grinding device for the production of thin-walled stainless steel water pipes, comprising a movable base 1. Symmetrical through holes 15 are provided on both sides of the outer surface of the movable base 1, extending from the front surface to the rear surface. A helical spring 16 is installed inside each of the two through holes 15, and a sliding rod 14 is fixedly connected to the end of each of the two helical springs 16. A C-shaped roller frame 13 is fixedly connected to the end of each of the four sliding rods 14. A movable roller 12 is rotatably mounted inside each of the four C-shaped roller frames 13. The elastic force of the helical springs 16 acts on the sliding rods 14, causing the movable roller 12 to contact the inner wall of the stainless steel water pipe. A movable motor 11 is fixedly mounted on the lower surface of each of the four C-shaped roller frames 13. The output ends of the four movable motors 11 are respectively connected to the four movable rollers 12, driving the movable rollers 12 to rotate, allowing the movable base 1 to move inside the stainless steel water pipe.

[0023] An electric push rod 17 is fixedly installed on the lower surface of the movable base 1, and a lifting plate 4 is fixedly connected to the output end of the electric push rod 17. Guide sleeves 2 are symmetrically fixedly installed on both sides of the upper surface of the movable base 1. Guide rods 3 are symmetrically fixedly connected on both sides of the lower surface of the lifting plate 4, and the two guide rods 3 pass through the two guide sleeves 2 respectively. When the electric push rod 17 drives the lifting plate 4 to rise and fall, the guide rods 3 also rise and fall accordingly. The guide sleeves 2 play a guiding and limiting role for the guide rods 3, and also act on the lifting plate 4, thereby improving the stability of the lifting plate 4. A U-shaped grinding frame 5 is fixedly installed on the upper surface of the lifting plate 4. A grinding wheel 6 is rotatably installed inside the U-shaped grinding frame 5. An electric push rod 17 drives the lifting plate 4 to rise and fall so that the grinding wheel 6 comes into contact with the weld seam of the inner wall of the stainless steel water pipe. The stainless steel water pipe is a stainless steel welded pipe, which is made by welding stainless steel strip after it is rolled and formed by the unit and the mold. A grinding motor 7 is fixedly installed on the front surface of the U-shaped grinding frame 5, and the output end of the grinding motor 7 is connected to the grinding wheel 6. The grinding motor 7 drives the grinding wheel 6 to rotate so as to grind the weld seam of the inner wall of the stainless steel water pipe.

[0024] In use, the movable seat 1 is placed inside the stainless steel water pipe. The elastic force of the helical spring 16 acts on the sliding rod 14, causing the sliding rod 14 to move inside the through hole 15 and causing the movable roller 12 to contact the inner wall of the stainless steel water pipe. The electric push rod 17 drives the lifting plate 4 to rise and fall, causing the grinding wheel 6 to contact the weld seam on the inner wall of the stainless steel water pipe. The movable roller 12 rotates and drives the movable seat 1 to move inside the stainless steel water pipe. The rotation of the grinding wheel 6 grinds the weld seam on the inner wall of the stainless steel.

[0025] Example 2

[0026] like Figures 1 to 4 As shown, the present invention proposes a weld grinding device for the production of thin-walled stainless steel water pipes. Compared with Embodiment 1, this embodiment further includes an electrical control box 8 fixedly installed on one side of the upper surface of the movable base 1. A control line 9 is fixedly connected to the outer surface of the electrical control box 8. Power and control signals are transmitted to the electrical control box 8 through the control line 9. Power is then distributed and controlled to the grinding motor 7, the movable motor 11 and the electric push rod 17 through the electrical control box 8. A traction rope 10 is fixedly connected to the outer surface of the movable base 1 near the electrical control box 8, and the outer surface of the traction rope 10 and the outer surface of the control line 9 are fixedly connected.

[0027] In this embodiment, the traction rope 10 plays a traction role when the movable seat 1 moves inside the stainless steel water pipe, and at the same time it can improve the tensile strength of the control line 9 and prevent the control line 9 from being damaged due to pulling.

[0028] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A weld grinding device for the production of thin-walled stainless steel water pipes, comprising a movable base (1), characterized in that: The movable seat (1) has symmetrical through holes (15) on both sides of its outer surface. Each of the two through holes (15) is equipped with a helical spring (16), and each of the two helical springs (16) is fixedly connected to a sliding rod (14). Each of the four sliding rods (14) is fixedly connected to a C-shaped roller frame (13), and each of the four C-shaped roller frames (13) is rotatably mounted with a movable roller (12). An electric push rod (17) is fixedly mounted on the lower surface of the movable seat (1), and a lifting plate (4) is fixedly connected to the output end of the electric push rod (17). A U-shaped grinding frame (5) is fixedly mounted on the upper surface of the lifting plate (4), and a grinding wheel (6) is rotatably mounted inside the U-shaped grinding frame (5).

2. The weld grinding device for producing thin-walled stainless steel water pipes according to claim 1, characterized in that: The front surface of the U-shaped grinding frame (5) is fixedly equipped with a grinding motor (7), and the output end of the grinding motor (7) is connected to the grinding wheel (6) for transmission.

3. The weld grinding device for producing thin-walled stainless steel water pipes according to claim 1, characterized in that: Each of the four C-shaped roller frames (13) has a fixedly mounted moving motor (11) on its lower surface, and the output ends of the four moving motors (11) are respectively connected to the four moving rollers (12) for transmission.

4. The weld grinding device for producing thin-walled stainless steel water pipes according to claim 1, characterized in that: Guide sleeves (2) are symmetrically fixedly installed on both sides of the upper surface of the movable seat (1), and guide rods (3) are symmetrically fixedly connected on both sides of the lower surface of the lifting plate (4), and the two guide rods (3) pass through the two guide sleeves (2) respectively.

5. The weld grinding device for producing thin-walled stainless steel water pipes according to claim 1, characterized in that: An electrical control box (8) is fixedly installed on one side of the upper surface of the movable seat (1), and a control line (9) is fixedly connected to the outer surface of the electrical control box (8).

6. The weld grinding device for producing thin-walled stainless steel water pipes according to claim 5, characterized in that: A traction rope (10) is fixedly connected to the outer surface of the movable seat (1) on the side near the electrical control box (8), and the outer surface of the traction rope (10) and the outer surface of the control line (9) are fixedly connected.

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