Device and method for butt welding flange and pipe joint

Abstract

The present invention belongs to the field of mechanical processing and construction technology, and in particular, relates to a device for butt welding flanges and pipe joints and a method for use. It includes a base, an angle rotation control device, and a flange and pipe joint fixing device, wherein the angle rotation control device is columnar and vertically mounted on the base, and a positioning point is also mounted on the base; a column is provided in the angle rotation control device, and a wear-resistant rubber ring is mounted on the column, which cooperates with the column to press and rotate the angle rotation control device, and a steel plate with a hole is mounted on the inner wall of the angle rotation control device, and an L-shaped pin is mounted on the column. The L-shaped pin is inserted into the steel plate with a hole to fix the angle rotation control device; the flange and pipe joint fixing device can be rotated and can be fixed by a locking screw. The present invention has low production cost and is easy to disassemble and assemble. It can effectively improve work efficiency for users, shorten construction period, and improve the appearance and quality of the welding between flanges and pipe joints, and is suitable for promotion and use.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing construction, and in particular relates to a device for butt welding a flange and a pipe joint and a use method thereof. Background Art

[0002] Flange is a widely used connection device. In the manufacturing process, in order to make full use of raw materials, large-diameter flanges can be welded in sections. When manually operated, the welding quality is closely related to the operator's welding level and is time-consuming and labor-intensive, resulting in low work efficiency.

[0003] In order to improve the quality and efficiency of welding, it is urgent to invent a device for butt welding flanges and pipe joints and a method of using the same. At the same time, the device is easy to assemble and disassemble, has low production cost, significant effect, and can be reused. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention belongs to the field of mechanical processing and construction technology, and in particular to a device and a method for butt welding flanges and pipe joints.

[0005] The technical solution adopted by the present invention is: a device for butt welding flanges and pipe joints, including a base, an angle rotation control device and a flange and pipe joint fixing device, characterized in that: the angle rotation control device is columnar, one end of the angle rotation control device is vertically arranged on the base, and the angle can be adjusted and fixed by pressing and rotating the angle rotation control device; the flange and pipe joint fixing device is provided at the opposite end of the angle rotation control device to the end connected to the base.

[0006] Preferably, a column is provided in the angle rotation control device, the column is located at the central axis of the angle rotation control device and rotates in conjunction with the angle rotation control device, and rubber rings are provided on the upper and lower sections of the column, and the rubber rings cooperate with the extension and retraction of the column.

[0007] Preferably, a magnet is provided in the angle rotation control device, and the magnet can restore the angle rotation control device to its original position after being pressed.

[0008] Preferably, a perforated limiting steel sheet is provided in the angle rotation control device, and the perforated limiting steel sheets are symmetrically arranged on the inner wall of the angle rotation control device and the interval between adjacent perforated limiting steel sheets is 90°.

[0009] Preferably, an L-shaped pin is provided in the angle rotation control device, and the L-shaped pin is provided on the column. The rotation of the column drives the L-shaped pin to be inserted into any of the perforated limiting steel sheets to fix the angle rotation control device.

[0010] Preferably, a positioning point is provided on the base, and the positioning point determines the position of the welding point.

[0011] Preferably, the flange and pipe joint fixing device is provided with a long strip bottom limiter, and the long strip bottom limiter also includes a locking screw. The long strip bottom limiter is arranged on the flange and pipe joint fixing device and the angle between them is 90°. The locking screw can be inserted into the long strip bottom limiter to fix the flange and the pipe joint fixing device.

[0012] Preferably, the flange and the pipe joint fixing device are provided with a reference point, and the reference point is provided at one end outside the long strip with a bottom limit, and the reference point can be aligned with the positioning point by adjusting the flange and the pipe joint fixing device.

[0013] Preferably, a method for using a device for butt welding a flange and a pipe joint is characterized by comprising the following steps:

[0014] Placing the base on a plane, and installing the angle rotation control device on the base;

[0015] The flange and pipe joint fixing device is installed on the side opposite to the side where the angle rotation control device is connected to the base, and is fixed to the angle rotation control device;

[0016] By rotating and fixing the angle rotation control device, welding of the flange and the pipe joint weld around is completed.

[0017] Preferably, the angle rotation control device includes a column, a rubber ring, a magnet, a steel plate with a hole and an L-shaped pin. The steel plate with a hole is installed on the inner wall of the angle rotation control device. The column is located at the central axis of the angle rotation control device, and the rubber ring is installed at the upper and lower ends. The L-shaped pin is installed on the column, and the magnet is relatively installed at both ends of the angle rotation control device; the angle is adjusted by pressing and rotating the angle rotation control device, and the magnet restores the angle rotation control device to its original position after stopping pressing, and the L-shaped pin is inserted into the steel plate with a hole to complete the fixation.

[0018] The advantages and positive effects of the present invention are as follows: It effectively solves the problem of poor weld appearance and quality caused by the lack of rotating and fixing supports during on-site butt welding of flanges and pipe joints. It also solves the problem of increased working hours and difficulty ensuring construction quality and efficiency due to difficult welding operations. The present invention has low production costs, is easy to assemble and disassemble, and can effectively improve work efficiency for users, shorten construction periods, and improve the appearance and quality of the weld between flanges and pipe joints, making it suitable for widespread use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural diagram of an embodiment of the present invention;

[0020] Figure 2 Schematic diagram of the external structure of an embodiment of the present invention;

[0021] Figure 3 2. It is a structural diagram of a flange and pipe joint fixing device according to an embodiment of the present invention;

[0022] In the picture:

[0023] 1. Base 2. Positioning point 3. Wear-resistant rubber ring

[0024] 4. Limiting steel sheet with hole 5. Angle rotation control device 6. L-shaped latch

[0025] 7. Magnet 8. Flange and pipe joint fixed 9. Long strip type has bottom limit position

[0026] 10. Locking screw 11. Reference point DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0028] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of technologies of well-known structures are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0029] The embodiment of the present invention provides a device and method for butt welding flanges and pipe joints, such as Figure 1 The figure shows a schematic diagram of the structure of an embodiment of the present invention, comprising: a base 1, a positioning point 2, a wear-resistant rubber ring 3, a steel plate with a hole for limiting the position 4, an angle rotation control device 5, an L-shaped latch 6, a magnet 7, a flange and pipe joint fixing device 8, a long bottom limiter 9, a locking screw 10, and a reference point 11;

[0030] like Figure 2 As shown, a positioning point 2 and an angle rotation control device 5 are provided on the base 1, and the angle rotation control device 5 is vertically mounted on the base 1, and the positioning point 2 and the angle rotation control device 5 are in the same plane of the base 1;

[0031] The angle rotation control device 5 is provided with a column, which serves as the central axis of the angle rotation control device 5 and can drive the angle rotation control device 5 to rotate. The upper and lower sections of the column are provided with wear-resistant rubber rings 3, which cooperate with the column to enable the column to be pressed and extended.

[0032] A perforated limiting steel sheet 4 is installed on the inner wall of the angle rotation control device 5, with adjacent perforated limiting steel sheets 4 being 90° apart. An L-shaped latch 6 is installed on the column, and a magnet 7 is arranged opposite to the angle rotation control device 5. By pressing and rotating the angle rotation control device 5, the L-shaped latch 6 is aligned with the perforated limiting steel sheet. When the pressure is released, the magnet 7 returns the angle rotation control device 5 to its original position according to the principle of like poles repelling each other, so that the L-shaped latch 6 can be inserted into the perforated limiting steel sheet 4, thereby fixing the angle rotation control device 5.

[0033] like Figure 3 As shown, the flange and pipe joint fixing device 8 is provided with an elongated bottom limiter 9, a locking screw 10 and a reference point 11, wherein the elongated bottom limiter 9 is symmetrically arranged on the flange and pipe joint fixing device 8, and the distance between two adjacent elongated bottom limiters 9 is 90 degrees; a reference point 11 is provided between the elongated bottom limiter 9 and the flange and pipe joint fixing device 8, wherein the reference point 11 can be in a straight line with the elongated bottom limiter 9, the perforated limiter steel sheet 4 and the positioning point 2; the flange and pipe joint fixing device 8 is also provided with a turntable, which can drive rotation; the locking screw 10 can be inserted and fixed after the flange and pipe joint fixing device 8 is adjusted to the specified position;

[0034] When in use, place the base 1 on a plane, then install the angle rotation control device 5 on the column fixed on the base 1, put a circle of wear-resistant rubber ring 3 on the upper and lower sections of the column, press down and rotate the angle rotation control system 5, align the reference point 11 on the flange and pipe joint fixing device 8 with the positioning point on the base 1, loosen the angle rotation control device 5, insert the L-shaped pin 6 into the hole-limiting steel plate 4, so that the angle rotation control device 5 is fixed and cannot rotate, then overlap the hole on the flange with the long strip bottom limit 9, and insert the locking screw 10 for fixing.

[0035] Start welding from any section. After welding 90° of appropriate length, press the angle rotation control device 5 again to rotate 90°, align it with the positioning point 2 on the base 1, and then loosen and fix it to prevent it from rotating and continue flat welding until the welding is completed. After ensuring that the flange and pipe joint welds are intact all around, remove the welded flange and pipe joint and pull out the locking screw 10.

[0036] The present invention effectively solves the problem of poor weld appearance and quality due to the lack of rotating and fixing supports when welding flanges and pipe joints at the construction site. It also solves the problem of increased working time and difficulty in ensuring construction quality and efficiency due to difficult welding operations. The present invention has low production costs and is easy to assemble and disassemble. It can effectively improve work efficiency for users, shorten construction time, and improve the appearance and quality of the weld between flanges and pipe joints, making it suitable for widespread use.

[0037] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A device for butt welding flanges and pipe joints, comprising a base, an angle rotation control device, and a flange and pipe joint fixing device, characterized in that: The angle rotation control device is columnar, and one end of the angle rotation control device is vertically arranged on the base, and the angle can be adjusted and fixed by pressing and rotating the angle rotation control device; the flange and pipe joint fixing device are provided at the opposite end of the angle rotation control device connected to the base; the angle rotation control device includes a column, a magnet, a steel plate with a hole and an L-shaped pin, and the column is located at the central axis of the angle rotation control device and rotates in coordination with the angle rotation control device, and the upper and lower sections of the column are provided with rubber rings, and the rubber rings cooperate with the extension and contraction of the column; the magnets are relatively installed at both ends of the angle rotation control device; the magnets can The control device returns to its original position; the perforated limiting steel sheets are symmetrically arranged on the inner wall of the angle rotation control device and the interval between adjacent perforated limiting steel sheets is 90°; the L-shaped pin is arranged on the column, and the rotation of the column drives the L-shaped pin to be inserted into any of the perforated limiting steel sheets to fix the angle rotation control device; the flange and pipe joint fixing device is provided with a long strip bottom limiter, and the flange and pipe joint fixing device also includes a locking screw, and the long strip bottom limiter is symmetrically arranged on the flange and pipe joint fixing device and the interval between adjacent long strip bottom limiters is 90°, and the locking screw can be inserted into the long strip bottom limiter to fix the flange and pipe joint fixing device.

2. The device for butt welding flanges and pipe joints according to claim 1, characterized in that: The base is provided with a positioning point, and the positioning point determines the position of the welding point.

3. The device for butt welding flanges and pipe joints according to claim 2, characterized in that: The flange and the pipe joint fixing device are provided with a reference point, and the reference point is provided at one end outside the long strip bottom limiter. The reference point can be aligned with the positioning point by adjusting the flange and the pipe joint fixing device.

4. A method for using the device for butt welding flanges and pipe joints according to claim 1, characterized in that: The steps include: Placing the base on a plane, and installing the angle rotation control device on the base; The flange and pipe joint fixing device is installed on the side opposite to the side where the angle rotation control device is connected to the base, and is fixed to the angle rotation control device; By rotating and fixing the angle rotation control device, welding of the flange and the pipe joint weld around is completed.

5. The method for using the device for butt welding flanges and pipe joints according to claim 4, characterized in that: The angle rotation control device includes a column, a rubber ring, a magnet, a steel plate with a hole and an L-shaped pin. The steel plate with a hole is installed on the inner wall of the angle rotation control device. The column is located at the central axis of the angle rotation control device, and the rubber rings are installed at the upper and lower ends to cooperate with the extension and contraction of the column. The L-shaped pin is installed on the column. The angle is adjusted by pressing and rotating the angle rotation control device. After stopping the pressing, the magnet restores the angle rotation control device to its original position, and the L-shaped pin is inserted into the steel plate with a hole to complete the fixation.

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