Stainless steel welded pipe welding seam polishing equipment

Abstract

The utility model discloses stainless steel welded pipe welding seam polishing equipment, belongs to the technical field of stainless steel welded pipe machining, and solves the problems that an operator with certain experience needs to polish the inner wall and the outer wall of the stainless steel welded pipe, so that the flatness of the stainless steel welded pipe is ensured, and the quality of a final finished product is avoided. Comprising an electric sliding rail, a sliding base connected to the electric sliding rail in a sliding mode, a servo motor fixedly connected to the sliding base and a pipe positioning assembly which is arranged at one end of the electric sliding rail and can move vertically, and a polishing assembly is fixedly connected to an output shaft of the servo motor and can be used for polishing the inner ring or the outer ring of the stainless steel welded pipe. An operator fixes a stainless steel welded pipe through a three-jaw chuck according to whether an inner ring or an outer ring needs to be polished, the stainless steel welded pipe is adjusted to be coaxial with a soft core, when the inner ring is polished, the soft core is inserted into the welded pipe, when the outer ring is polished, the soft core is sleeved outside the pipe, then a servo motor is used for driving corresponding parts to rotate at a high speed, and polishing is completed by means of diamond abrasive particles. Therefore, the processing efficiency is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel welded pipe processing, in particular to a stainless steel welded pipe weld grinding device. Background Art

[0002] Stainless steel welded pipe is a round, square or rectangular tubular product made by forming and welding stainless steel strip. This pipe is widely used in many fields, including construction, automobile, petroleum, medical, food, chemical, shipbuilding and other industries due to its excellent corrosion resistance, oxidation resistance and high temperature strength. In terms of material selection, the commonly used stainless steel materials for stainless steel welded pipes include 304, 304L, 316, 316L, etc. These steels are suitable for different use environments and requirements according to their composition and performance. The production of stainless steel welded pipes can adopt a variety of welding technologies such as high-frequency welding and laser welding, and the welding quality can be guaranteed by online or offline heat treatment to ensure the safety and stability of the pipe during use. In addition, after the manufacturing process, the stainless steel welded pipe can also be cold drawn or cold rolled to increase the strength and accurately control the size to meet more refined industry application requirements. Because stainless steel has strong corrosion resistance, stainless steel welded pipes have low maintenance costs and long life during use, and are the preferred pipeline materials for many projects and equipment.

[0003] However, since the stainless steel welded pipe is formed by coiling and welding the strip, the weld is the most uneven position of the entire welded pipe. Usually, experienced operators are required to grind the inner and outer walls to ensure its flatness and avoid the quality of the final product.

[0004] Therefore, a stainless steel welded pipe weld grinding device is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a stainless steel welded pipe weld grinding device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A stainless steel welded pipe weld grinding device comprises an electric slide rail, a slide seat slidably connected thereto, a servo motor fixedly connected to the slide seat, and a pipe positioning assembly which is arranged at one end of the electric slide rail and can be vertically displaced. A grinding assembly is fixedly connected to the output shaft of the servo motor, and the grinding assembly can be used to grind the inner ring or outer ring of the stainless steel welded pipe.

[0008] Preferably, the tube positioning assembly comprises a three-jaw chuck, and the three-jaw chuck is arranged horizontally.

[0009] Preferably, the tube positioning assembly further comprises a vertical plate fixedly connected to one end of the electric slide rail and vertically arranged, and the three-jaw chuck is slidably connected to the vertical plate and can be positioned at any position on the sliding process.

[0010] Preferably, a vertical groove is formed on the vertical plate, a screw rod penetrating the vertical groove is fixedly connected to the back of the three-jaw chuck, and a nut which contacts with the surface of the vertical plate is threadedly connected to the screw rod.

[0011] Preferably, when the grinding assembly is used to grind the inner ring of a stainless steel welded pipe, the grinding assembly includes a connecting disk detachably connected to the output shaft of a servo motor, and a soft core fixedly connected to the connecting disk, the outer peripheral wall of the soft core is recessed inward to form a plurality of external recesses, and a plurality of diamond particles are fixedly connected to the outer peripheral wall of the soft core between adjacent external recesses.

[0012] Preferably, the cross section of the outer recess is fan-shaped.

[0013] Preferably, when the grinding assembly is used to grind the outer ring of a stainless steel welded pipe, the grinding assembly includes a connecting pipe detachably connected to the output shaft of a servo motor, and a flexible ring fixedly connected to the inner ring of the connecting pipe, the inner ring of the flexible ring is recessed outward to form a plurality of recessed portions, and a plurality of diamond particles are fixedly connected to the inner circumferential wall of the flexible ring between adjacent recessed portions.

[0014] The utility model has the following beneficial effects:

[0015] When the utility model is operated, the operator needs to first determine whether to grind the inner ring or the outer ring. For grinding the inner ring, a soft core is used, the weld pipe is fixed by a three-jaw chuck, and the three-jaw chuck is adjusted to make the weld pipe coaxial with the soft core. Then, the servo motor drives the soft core to be inserted into the weld pipe, and cooperates with the outer concave design to perform elastic deformation to fit the shape of the weld pipe. The diamond particles on the soft core are then used to grind the inner weld seam. For grinding the outer ring, the connecting pipe of the grinding assembly is sleeved outside the weld pipe, and the inner concave design is used to deform it to fit the shape of the outer ring. The servo motor drives the connecting pipe to rotate at high speed to complete the grinding of the outer weld seam. This method greatly improves the efficiency of the weld grinding processing of stainless steel welded pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0017] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0019] Figure 4This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0020] Figure 5 for Figure 4 Enlarged view of point C in the middle.

[0021] 1. Electric slide rail; 101. Slide seat; 2. Servo motor; 3. Flexible core; 301. External concave portion; 4. Three-jaw chuck; 401. Screw rod; 402. Nut; 5. Vertical plate; 501. Vertical groove; 6. Connecting pipe; 7. Flexible ring; 701. Internal concave portion. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] A stainless steel welded pipe weld grinding device, such as Figure 1-3 As shown, it includes an electric slide rail 1, a slide seat 101 slidably connected thereto, a servo motor 2 fixedly connected to the slide seat 101, and a pipe positioning assembly that can be vertically displaced and is arranged at one end of the electric slide rail 1. A grinding assembly is fixedly connected to the output shaft of the servo motor 2, and the grinding assembly can be used to grind the inner ring or outer ring of the stainless steel welded pipe.

[0024] The pipe positioning assembly includes a three-jaw chuck 4 and a vertical plate 5 fixedly connected to one end of the electric slide rail 1 and vertically arranged. The three-jaw chuck 4 is horizontally arranged. The three-jaw chuck 4 is slidably connected to the vertical plate 5 and can be positioned at any position in the sliding process. A vertical groove 501 is opened on the vertical plate 5. The back side of the three-jaw chuck 4 is fixedly connected with a screw 401 that passes through the vertical groove 501. The screw 401 is threadedly connected with a nut 402 that contacts the surface of the vertical plate 5.

[0025] When the grinding assembly is used to grind the inner ring of the stainless steel welded pipe, the grinding assembly includes a connecting disk detachably connected to the output shaft of the servo motor 2, and a soft core 3 fixedly connected to the connecting disk. The connecting disk is a T-shaped tubular structure, and the connecting disk is used to be sleeved on the output shaft of the servo motor 2 and fixed by bolts. The outer peripheral wall of the soft core 3 is recessed inward to form a plurality of outer recesses 301. A plurality of diamond particles are fixedly connected to the outer peripheral wall of the soft core 3 between adjacent outer recesses 301. The cross-section of the outer recess 301 is fan-shaped. The soft core 3 is specifically made of sponge material with a cylindrical cross-section. The outer recess 301 is a strip groove with a fan-shaped cross-section.

[0026] Embodiment 2:

[0027] The difference from the first embodiment is that:

[0028] like Figure 4 and5 As shown, when the grinding assembly is used to grind the outer ring of the stainless steel welded pipe, the grinding assembly includes a connecting tube 6 detachably connected to the output shaft of the servo motor 2, and a soft ring 7 fixedly connected to the inner ring of the connecting tube 6, the inner ring of the soft ring 7 is recessed outward to form a plurality of inner recesses 701, and a plurality of diamond particles are fixedly connected to the inner circumferential wall of the soft ring 7 between adjacent inner recesses 701, one end of the connecting tube 6 is sleeved on the output shaft of the servo motor 2, thereby realizing a detachable connection, and the soft ring 7 is made of sponge material, and is specifically a circular tubular structure, and the inner recess 701 is a strip groove with a triangular cross-section.

[0029] When the utility model needs to grind the weld of the stainless steel welded pipe, the operator first needs to judge whether to grind the inner ring or the outer ring of the stainless steel welded pipe. If the inner ring needs to be grinded, the soft core 3 is used to work. First, the stainless steel welded pipe is fixed by the three-jaw chuck 4, and then the nut 402 is loosened manually to adjust the position of the three-jaw chuck 4 to ensure that the stainless steel welded pipe and the soft core 3 are coaxially arranged. Then, after the screw 401 slides to a certain position in the vertical groove 501, the nut 402 is tightened again, so that the nut 402 and the three-jaw chuck 4 can clamp the vertical plate 5, so that the three-jaw chuck 4 can position the stainless steel welded pipe at a certain horizontal height position, and then the electric slide rail 1 drives the servo motor 2 on the slide seat 101 to move together. When the servo motor 2 moves, it will drive the connecting plate together. The soft core 3 is displaced and inserted into the stainless steel welded pipe. Due to the setting of the outer recess 301, the soft core 3 can be more elastically deformed to adapt to the cross-sectional shape of the stainless steel welded pipe. When the servo motor 2 drives the connecting disk and the soft core 3 to rotate, the diamond particles on the surface of the soft core 3 can grind the weld to ensure that the inner ring is flat. Similarly, if the outer ring of the stainless steel welded pipe needs to be polished, the polishing component fixed on the output shaft of the servo motor 2 only needs to be the connecting pipe 6. The connecting pipe 6 is sleeved with the soft ring 7 to the outside of the stainless steel welded pipe and deformed through the inner recess 701 to adapt to the outer ring cross-section of the stainless steel welded pipe. Then, it is driven by the servo motor 2 to rotate at high speed to complete the grinding of the outer ring weld of the stainless steel welded pipe, thereby greatly improving the processing and grinding efficiency of the stainless steel welded pipe weld.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stainless steel welded pipe weld grinding device, characterized in that: The invention comprises an electric slide rail (1), a slide seat (101) slidably connected thereto, a servo motor (2) fixedly connected to the slide seat (101), and a pipe positioning assembly arranged at one end of the electric slide rail (1) and capable of vertical displacement. A grinding assembly is fixedly connected to the output shaft of the servo motor (2), and the grinding assembly can be used to grind the inner ring or outer ring of a stainless steel welded pipe.

2. A stainless steel welded pipe weld grinding device according to claim 1, characterized in that: The tube positioning assembly comprises a three-jaw chuck (4), and the three-jaw chuck (4) is arranged horizontally.

3. A stainless steel welded pipe weld grinding device according to claim 2, characterized in that: The pipe positioning assembly also includes a vertical plate (5) fixedly connected to one end of the electric slide rail (1) and arranged vertically. The three-jaw chuck (4) is slidably connected to the vertical plate (5) and can be positioned at any position in the sliding process.

4. The stainless steel welded pipe weld grinding equipment according to claim 3, characterized in that: The vertical plate (5) is provided with a vertical slot (501), the back side of the three-jaw chuck (4) is fixedly connected with a screw rod (401) penetrating the vertical slot (501), and the screw rod (401) is threadedly connected with a nut (402) that contacts the plate surface of the vertical plate (5).

5. A stainless steel welded pipe weld grinding device according to any one of claims 1 to 4, characterized in that: When the grinding assembly is used to grind the inner ring of a stainless steel welded pipe, the grinding assembly comprises a connecting disk detachably connected to an output shaft of a servo motor (2), and a soft core (3) fixedly connected to the connecting disk, the outer peripheral wall of the soft core (3) being recessed inward to form a plurality of external recesses (301), and a plurality of diamond particles being fixedly connected to the outer peripheral wall of the soft core (3) between adjacent external recesses (301).

6. The stainless steel welded pipe weld grinding equipment according to claim 5, characterized in that: The cross section of the outer recess (301) is fan-shaped.

7. A stainless steel welded pipe weld grinding device according to any one of claims 1 to 4, characterized in that: When the grinding assembly is used to grind the outer ring of a stainless steel welded pipe, the grinding assembly comprises a connecting pipe (6) detachably connected to an output shaft of a servo motor (2), and a flexible ring (7) fixedly connected to the inner ring of the connecting pipe (6), the inner ring of the flexible ring (7) being recessed outward to form a plurality of inner recesses (701), and a plurality of diamond particles being fixedly connected to the inner peripheral wall of the flexible ring (7) between adjacent inner recesses (701).

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