Pipe body welding seam double-end grinding machine

Abstract

The invention provides a pipe body welding seam double-end grinding machine, and relates to the technical field of welding seam grinding, the pipe body welding seam double-end grinding machine comprises a bearing mechanism for bearing a pipe body, one side of the bearing mechanism is provided with a moving assembly capable of moving along the center line of the pipe body, and the moving assembly is provided with a first grinding assembly and a second grinding assembly; the first grinding assembly and the second grinding assembly can get close to each other to be attached to the inner wall and the outer wall of the pipe body, and the moving assembly can move towards the bearing mechanism to enable the first grinding assembly and the second grinding assembly to grind a welding seam of the pipe body; welding seams inside and outside a pipe body can be polished at the same time, the polishing efficiency and regularity can be greatly improved, the bearing mechanism can swing the pipe body to fully polish the welding seams, and abrasion of a polishing belt is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of weld grinding, and particularly to a double-headed pipe weld grinding machine. Background Art

[0002] Metal pipes are generally formed by bending and welding the head and tail of metal plates. A weld parallel to the center line of the pipe will be formed at the welding joint, and its length is the same as that of the pipe. After the pipe is welded, the protrusions on its outer surface and inner surface will affect the subsequent installation and use of the pipe. Therefore, it is necessary to grind the welded joints with protrusions on the pipe. At present, the grinding device needs to grind the inside or outside of the pipe separately. During the grinding process, it may cause the grinding area not to be ground along the arc of the pipe, and there may be over-grinding or insufficient grinding in the grinding area, affecting the accuracy of the pipe or the rigidity of the welded joint, and affecting the qualified rate of the product. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a double-headed pipe weld grinding machine to solve the problem of poor grinding effect of pipe welds.

[0004] Based on the technical problems existing in the background art, the present invention proposes a double-headed pipe weld grinding machine, which includes a carrying mechanism for carrying the pipe. A moving component that can move along the center line of the pipe is arranged on one side of the carrying mechanism. A first grinding component and a second grinding component are respectively installed on the moving component. The first grinding component and the second grinding component can approach each other to fit the inner wall and outer wall of the pipe. The moving component can move towards the carrying mechanism so that the first grinding component and the second grinding component grind the weld of the pipe.

[0005] Preferably, both the first grinding component and the second grinding component include a support arm and a grinding arm. One end of the grinding arm is rotatably connected to one end of the support arm, and the end of the support arm and the grinding arm are connected by a first telescopic mechanism.

[0006] Preferably, a first wheel body and a second telescopic mechanism are respectively installed at both ends of the side surface of the grinding arm. The driving end of the second telescopic mechanism is rotatably installed with a second wheel body, and a grinding belt is installed between the first wheel body and the second wheel body.

[0007] Preferably, the moving component includes a horizontal moving mechanism and a vertical moving mechanism. The vertical moving mechanism is horizontally slidably installed on the horizontal moving mechanism, and the support arms of the first grinding component and the second grinding component are both connected to the vertical moving mechanism.

[0008] Preferably, a balancing member is installed on the vertical moving mechanism.

[0009] Preferably, the bearing mechanism includes a bottom bracket and columns. A plurality of columns are slidably installed above each group of bottom brackets, and the interval between columns in the same group is adjustable. A roller is rotatably installed at the top of the column.

[0010] Preferably, the shaft body of the roller is meshed with a servo motor through a gear.

[0011] Compared with the prior art, the double-head grinding machine for pipe welds proposed by the present invention adopts the above technical solutions and achieves the following technical effects:

[0012] The present invention can simultaneously grind the welds inside and outside the pipe body, which can greatly improve the grinding efficiency and regularity. The bearing mechanism of the present invention can swing the pipe body sufficiently to grind the welds and reduce the wear of the grinding belt. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 is a schematic diagram of the installation structure of the grinding assembly of the present invention;

[0015] Figure 3 is a schematic diagram of the structure of the bearing mechanism of the present invention.

[0016] In the figure: 1, bearing mechanism; 2, moving assembly; 31, first grinding assembly; 32, second grinding assembly; 301, support arm; 302, grinding arm; 303, first telescopic mechanism; 304, first wheel body; 305, second telescopic mechanism; 306, second wheel body; 307, grinding belt; 21, horizontal moving mechanism; 22, longitudinal moving mechanism; 23, balancing member; 11, bottom bracket; 12, column; 13, roller; 14, servo motor. Detailed Embodiments

[0017] Embodiment

[0018] Please refer to Figures 1-3, the present invention provides a double - head grinding machine for the weld of a pipe body, which includes a carrying mechanism 1 for carrying the pipe body. A moving component 2 that can move along the center line of the pipe body is arranged on one side of the carrying mechanism 1. A first grinding component 31 and a second grinding component 32 are respectively installed on the moving component 2. The first grinding component 31 and the second grinding component 32 can approach each other to fit the inner wall and the outer wall of the pipe body. The moving component 2 can move towards the carrying mechanism 1 so that the first grinding component 31 and the second grinding component 32 can grind the weld of the pipe body; in this solution, the first grinding component 31 and the second grinding component 32 can adjust their positions, and both can fit the surface of the pipe body for grinding. During the grinding process, the carrying mechanism 1 can always swing the pipe body, so that the long weld of the pipe body can swing relative to the two grinding components, changing the relative position between the weld and the grinding components, reducing the wear of a single position of the grinding belt 307, and at the same time enabling the weld position to be ground flat with the inner wall or the outer wall of the pipe body, presenting the same arc.

[0019] In the specific implementation manner, referring to Figure 2 、 Figure 3 , both the first grinding component 31 and the second grinding component 32 include a support arm 301 and a grinding arm 302. One end of the grinding arm 302 is rotatably connected to one end of the support arm 301, and the support arm 301 and the grinding arm 302 are connected by a first telescopic mechanism 303 at the end of the support arm 301; in this solution, the first grinding component 31 and the second grinding component 32 have the same composition. The support arms 301 of the two grinding components are both horizontally and parallelly installed. One end of each support arm 301 is connected to the moving component 2, and the other end of the support arm 301 is rotatably connected to the grinding arm 302. The two ends of the first telescopic mechanism 303 are respectively rotatably connected to the support arm 301 and the grinding arm 302. The expansion and contraction of the first telescopic mechanism 303 can change the included angle between the grinding arm 302 and the support arm 301, and the rotation of the grinding arm 302 is used to fit the outer wall or the inner wall of the pipe body.

[0020] In the specific implementation manner, referring to Figure 2 、 Figure 3 , a first wheel body 304 and a second telescopic mechanism 305 are respectively installed at both ends of the side surface of the grinding arm 302. A second wheel body 306 is rotatably installed at the driving end of the second telescopic mechanism 305. A grinding belt 307 is installed between the first wheel body 304 and the second wheel body 306; in this solution, the second telescopic mechanism 305 is used to control the length of the grinding arm 302, which can cope with the installation of grinding belts 307 of different lengths and improve the applicable range of the grinding belt 307; further, the shaft body of the first wheel body 304 is also connected to a roller body. A motor is installed on the support arm 301, and the driving end of the motor is connected to the roller body through a belt. The motor can drive the first wheel body 304 to rotate through the belt, and then make the grinding belt 307 rotate to grind an object.

[0021] In the specific implementation manner, referring to Figure 2, Figure 3 , the moving component 2 includes a horizontal moving mechanism 21 and a longitudinal moving mechanism 22. The longitudinal moving mechanism 22 is horizontally slidably mounted on the horizontal moving mechanism 21, and the arms 301 of the first grinding component 31 and the second grinding component 32 are both connected to the longitudinal moving mechanism 22. In this solution, the horizontal moving mechanism 21 and the longitudinal moving mechanism 22 cooperate with each other. The horizontal moving mechanism 21 is used to drive the two grinding components to approach or move away from the pipe body, and the longitudinal moving mechanism 22 is used to adjust the longitudinal positions of the two grinding components and perform grinding work on different pipe bodies.

[0022] In the specific implementation manner, refer to Figure 2 , Figure 3 , a balancing member 23 is installed on the longitudinal moving mechanism 22. In this solution, the balancing member 23 is installed on the side of the longitudinal moving mechanism 22 away from the arm 301, and it can balance the weights of the two arms 301, and can prevent the device from tipping over or bending.

[0023] In the specific implementation manner, refer to Figure 2 , Figure 3 , the bearing mechanism 1 includes a bottom bracket 11 and columns 12. A plurality of columns 12 are slidably mounted above each bottom bracket 11, and the intervals between the columns 12 in the same group are adjustable. The top ends of the columns 12 are rotatably mounted with rollers 13. In this solution, two columns 12 are slidably mounted on each bottom bracket 11, and the interval between the columns 12 can be adjusted by sliding. The columns 12 can be locked with the bottom bracket 11 through bolts. The shaft body of the roller 13 is engaged with a servo motor 14 through gears. When the pipe body is placed on the columns 12, it will contact the rollers 13. The rollers 13 will rotate reciprocally under the drive of the servo motor 14, and the rotation amplitude is small, which can keep the grinding belt 307 in contact with the weld seam all the time. When the pipe body swings, the grinding belt 307 can make full use of each grinding position, and at the same time, the welded part can keep the same arc as the pipe body after grinding.

[0024] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A double-headed grinder for pipe welds, characterized in that: The invention comprises a supporting mechanism (1) for supporting a pipe body, a moving assembly (2) which can move along the center line of the pipe body is arranged on one side of the supporting mechanism (1), a first grinding assembly (31) and a second grinding assembly (32) are respectively mounted on the moving assembly (2), the first grinding assembly (31) and the second grinding assembly (32) can be brought close to each other and fit the inner wall and the outer wall of the pipe body, and the moving assembly (2) can move toward the supporting mechanism (1) so that the first grinding assembly (31) and the second grinding assembly (32) can grind the weld of the pipe body.

2. The double-headed grinder for pipe body weld according to claim 1, characterized in that: The first grinding assembly (31) and the second grinding assembly (32) both comprise a support arm (301) and a grinding arm (302); one end of the grinding arm (302) is rotatably connected to one end of the support arm (301); and the end of the support arm (301) and the grinding arm (302) are connected via a first telescopic mechanism (303).

3. The double-headed grinder for pipe body weld according to claim 2, characterized in that: The first wheel body (304) and the second telescopic mechanism (305) are respectively installed at both ends of the side of the grinding arm (302); the second wheel body (306) is rotatably installed at the driving end of the second telescopic mechanism (305); and a grinding belt (307) is installed between the first wheel body (304) and the second wheel body (306).

4. The pipe body weld double-head grinder according to claim 2, characterized in that: The moving assembly (2) comprises a horizontal moving mechanism (21) and a longitudinal moving mechanism (22). The longitudinal moving mechanism (22) is horizontally slidably mounted on the horizontal moving mechanism (21). The supporting arms (301) of the first grinding assembly (31) and the second grinding assembly (32) are both connected to the longitudinal moving mechanism (22).

5. The pipe body weld double-head grinder according to claim 4, characterized in that: A balancing piece is installed on the longitudinal moving mechanism (22).

6. The pipe body weld double-head grinder according to claim 1, characterized in that: The bearing mechanism (1) comprises a bottom bracket (11) and a support (12). A plurality of supports (12) are slidably mounted above each group of bottom brackets (11). The intervals between supports (12) in the same group are adjustable. Rollers (13) are rotatably mounted on the tops of the supports (12).

7. The double-headed grinder for pipe body weld according to claim 6, characterized in that: The shaft of the roller (13) is meshed with a servo motor (14) via a gear.

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