Internal grinding device for precision welded pipe

Abstract

The utility model discloses an internal grinding device for precision welded pipes, which comprises a mounting frame, a first cylinder is arranged on one side of the mounting frame, a push rod is arranged at the front end of the first cylinder, a sliding rail is arranged on the mounting frame, a base is mounted on the sliding rail, a sliding block is arranged at the bottom of the base, and the base is mounted through the sliding block. A plurality of guide columns are arranged on the base, the guide columns are sleeved with a moving plate, an upper shaping wheel is arranged on the lower end face of the moving plate, a lower shaping wheel is arranged under the upper shaping wheel, and the lower shaping wheel is installed on the base; the welding pipe polishing device is reasonable in structural design, convenient to use and capable of polishing the welding position of the inner wall face of a welding pipe conveniently, and therefore the production quality of the welding pipe is improved.

Description

Technical Field

[0001] The utility model relates to the field of production equipment, in particular to an internal grinding device for precision welded pipes. Background Art

[0002] During the production and processing of pipe fittings, steel strips are first closed into round steel pipes, and then the closed parts of the steel strips are welded by welding devices to form steel pipes. The welded steel pipes usually have rough welds, so they need to be polished by grinding devices. Traditional welded pipes only polish the welds on the outer surface of the steel pipes, while the welds on the inner wall of the steel pipes cannot be polished, resulting in rough welds on the inner wall of the steel pipes, which is not conducive to the high-quality production of steel pipes. Utility Model Content

[0003] In order to solve the above-mentioned problems, the utility model provides an internal grinding device for precision welded pipes, including a mounting frame, a first cylinder is arranged on one side of the mounting frame, a push rod is arranged on the front end of the first cylinder, a slide rail is arranged on the mounting frame, a base is installed on the slide rail, a push plate is arranged on one side of the base, the push plate is connected to the push rod, a slider is arranged at the bottom of the base and installed through the slider, a plurality of guide columns are arranged on the base, a movable plate is sleeved on the guide column, an upper shaping wheel is arranged on the lower end surface of the movable plate, and the upper shaping wheel A lower shaping wheel is arranged directly below the guide column, and the lower shaping wheel is mounted on the base. A fixed plate is arranged on the top of the guide column, a screw is passed through the center position of the fixed plate, and the bottom of the screw is connected to the movable plate. A group of transverse shaping wheels are arranged at the front end of the guide column, and the transverse shaping wheels are arranged on the base. A traction device is arranged at the front end of the base, and a second cylinder is arranged at the front end of the traction device. A traction steel wire is connected to the lower end of the second cylinder, and an inner grinding rod is arranged at the end of the traction steel wire, and the inner grinding rod is arranged between the upper shaping wheel and the lower shaping wheel.

[0004] Preferably, a shaft sleeve is provided at a connection position between the screw rod and the fixed plate and at a connection position between the screw rod and the movable plate, and an adjustment handle is provided at the top of the screw rod.

[0005] Preferably, two touch sensors are arranged on one side of the mounting frame and the two touch sensors are respectively arranged at the front and rear ends of the push plate.

[0006] The beneficial effects of the utility model are as follows: the utility model has reasonable structural design, is easy to use, and can be convenient for grinding the welding part of the inner wall surface of the welded pipe, thereby improving the production quality of the welded pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0008] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0009] Figure 2 It is a partial structural schematic diagram of the utility model;

[0010] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0011] In the figure: 1. mounting frame; 2. first cylinder; 3. traction device; 4. second cylinder; 5. traction wire; 6. base; 7. slide rail; 8. touch sensor; 9. push plate; 10. push rod; 12. guide column; 13. transverse shaping wheel; 14. screw; 15. moving plate; 16. inner grinding rod; 17. upper shaping wheel; 18. lower shaping wheel; 19. slider. DETAILED DESCRIPTION

[0012] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0013] Any feature of this specification, unless otherwise specified, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise specified, each feature is only an example of a series of equivalent or similar features.

[0014] like Figure 1 , 2 3 shows an internal grinding device for precision welded pipes, comprising a mounting frame 1, a first cylinder 2 is arranged on one side of the mounting frame 1, a push rod 10 is arranged at the front end of the first cylinder 2, a slide rail 7 is arranged on the mounting frame 1, a base 6 is installed on the slide rail 7, a push plate 9 is arranged on one side of the base 6, the push plate 9 is connected to the push rod 10, a slider 19 is arranged at the bottom of the base 6 and is installed through the slider 19, a plurality of guide columns 12 are arranged on the base 6, a movable plate 15 is sleeved on the guide column 12, an upper shaping wheel 17 is arranged on the lower end surface of the movable plate 15, and a lower shaping wheel 17 is arranged directly below the upper shaping wheel 17. The lower shaping wheel 18 is mounted on the base 6, a fixed plate is arranged on the top of the guide column 12, a screw 14 is passed through the center of the fixed plate, the bottom of the screw 14 is connected to the movable plate 15, a group of transverse shaping wheels 13 are arranged at the front end of the guide column 12, the transverse shaping wheels 13 are arranged on the base 6, a traction device 3 is arranged at the front end of the base 6, a second cylinder 4 is arranged at the front end of the traction device 3, a traction wire 5 is connected to the lower end of the second cylinder 4, an inner grinding rod 16 is arranged at the end of the traction wire 5, and the inner grinding rod 16 is arranged between the upper shaping wheel 17 and the lower shaping wheel 18.

[0015] Axle sleeves are provided at the connection position between the screw rod 14 and the fixed plate and at the connection position between the screw rod 14 and the movable plate 15 , and an adjustment handle is provided at the top of the screw rod 14 .

[0016] Two touch sensors 8 are disposed on one side of the mounting frame 1 and the two touch sensors 8 are disposed at the front and rear ends of the push plate 9 .

[0017] During use, the steel belt is pulled together and welded through the pulling device 3. During the pulling process, the pulling wire and the inner grinding rod 16 will be wrapped in the steel belt, and the welded steel pipe will be pulled backwards into the space between the transverse shaping wheel 13, the upper shaping wheel 17 and the lower shaping wheel 18. During this process, the first cylinder 2 will drive the push rod 10 to drive the push plate 9 to move back and forth, further drive the bottom plate 6 to move back and forth, thereby pulling the steel pipe to continue to move backwards. At the same time, when When the cylinder 2 drives the base plate 6 to move forward, the second cylinder 4 extends out, so that the traction wire rope 5 is in a relaxed state, and the inner grinding rod 16 moves backward with the steel pipe being pulled backward. When the cylinder 2 drives the base plate 6 to move backward, the second cylinder 4 retracts, so that the traction wire rope 5 is in a taut state, and the inner grinding rod 16 moves forward relative to the steel pipe being pulled backward with the pulling of the traction wire 5, thereby repeatedly grinding the inner wall welding part of the steel pipe being pulled.

[0018] The beneficial effects of the utility model are as follows: the utility model has reasonable structural design, is easy to use, and can be convenient for grinding the welding part of the inner wall surface of the welded pipe, thereby improving the production quality of the welded pipe.

[0019] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An internal grinding device for precision welded pipes, characterized in that: The invention comprises a mounting frame (1), a first cylinder (2) is arranged on one side of the mounting frame (1), a push rod (10) is arranged at the front end of the first cylinder (2), a slide rail (7) is arranged on the mounting frame (1), a base (6) is installed on the slide rail (7), a push plate (9) is arranged on one side of the base (6), the push plate (9) is connected to the push rod (10), a slider (19) is arranged at the bottom of the base (6) and is installed through the slider (19), a plurality of guide columns (12) are arranged on the guide columns (12), a movable plate (15) is sleeved on the guide columns (12), an upper shaping wheel (17) is arranged on the lower end surface of the movable plate (15), a lower shaping wheel (18) is arranged directly below the upper shaping wheel (17), and the The lower shaping wheel (18) is mounted on the base (6); a fixed plate is arranged on the top of the guide column (12); a screw rod (14) is passed through the center of the fixed plate; the bottom of the screw rod (14) is connected to the movable plate (15); a group of transverse shaping wheels (13) are arranged at the front end of the guide column (12); the transverse shaping wheels (13) are arranged on the base (6); a traction device (3) is arranged at the front end of the base (6); a second cylinder (4) is arranged at the front end of the traction device (3); a traction steel wire (5) is connected to the lower end of the second cylinder (4); an inner grinding rod (16) is arranged at the end of the traction steel wire (5); the inner grinding rod (16) is arranged between the upper shaping wheel (17) and the lower shaping wheel (18).

2. The internal grinding device for precision welded pipe according to claim 1, characterized in that: A shaft sleeve is provided at a connection position between the screw rod (14) and the fixed plate and at a connection position between the screw rod (14) and the movable plate (15), and an adjustment handle is provided at the top of the screw rod (14).

3. The internal grinding device for precision welded pipe according to claim 1, characterized in that: Two touch sensors (8) are arranged on one side of the mounting frame (1), and the two touch sensors (8) are arranged at the front and rear ends of the push plate (9).

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