Polishing equipment for steel pipe welding

Abstract

The utility model relates to the technical field of steel pipe machining, in particular to polishing equipment for steel pipe welding, which comprises a rack, a driving roller rotatably arranged in the rack, a carrier roller arranged on one side of the driving roller, an outer wall polishing wheel further arranged on the rack, and an adjustable inner wall polishing assembly movably arranged on the rack and used for polishing the inner wall of a steel pipe. By arranging the adjustable inner wall polishing assembly, the position of a polishing piece can be adjusted according to the inner diameter of a steel pipe, so that the polishing piece can be tightly attached to the inner wall of the steel pipe, and the polishing efficiency is guaranteed; two electric telescopic rods and a moving plate are arranged on the adjustable inner wall grinding assembly, and due to different steel pipes, the center axis of the adjustable inner wall grinding assembly can be changed, so that the position of a grinding piece can be adjusted through cooperation of the first electric telescopic rods and the moving plate; and a second electric telescopic rod ensures that the polishing piece can move to the welding seam of the inner wall for polishing.

Description

Technical Field

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

[0002] When a sewage treatment plant is being modified or expanded, multiple pipelines need to be connected, usually by welding. After welding, the welds need to be polished to keep them smooth and tidy.

[0003] Nowadays, when grinding steel pipes, in addition to grinding the outer wall of the weld, the inner wall of the weld also needs to be ground. Currently, a grinding wheel is inserted into the steel pipe to grind the weld on the inner wall. However, most of the existing grinding wheels inserted into the interior are fixed and cannot be adjusted according to the inner diameter of the steel pipe. Therefore, each time grinding, a suitable grinding wheel must be replaced, which is time-consuming and laborious. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings and provide a grinding device for steel pipe welding.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A grinding device for steel pipe welding comprises a frame, a driving roller is rotatably arranged in the frame, a supporting roller is arranged on one side of the driving roller, a pressing roller is arranged on the frame, the pressing roller is rotatably connected to the frame through a fixed frame, an outer wall grinding wheel is also arranged on the frame, and further comprises:

[0007] The adjustable inner wall grinding component is movably arranged on the frame and is used for grinding the inner wall of the steel pipe.

[0008] Furthermore, a first lead screw is rotatably arranged at the bottom of the frame, a bracket is sleeved on the first lead screw, and a roller is rotatably arranged in the bracket.

[0009] Furthermore, a second lead screw is rotatably provided on the inner side wall of the frame, a telescopic frame is sleeved on the second lead screw, and the outer wall grinding wheel is rotatably provided in the telescopic frame.

[0010] Furthermore, the adjustable inner wall grinding assembly includes a first electric telescopic rod, a crossbeam is arranged at the top of the first electric telescopic rod, an adjustment assembly is arranged on the crossbeam, a grinding plate is arranged on the adjustment assembly, a transverse sliding block is also arranged at the bottom of the first electric telescopic rod, and a hydraulic cylinder is arranged on the frame, and the hydraulic cylinder is used to drive the sliding of the transverse sliding block.

[0011] Furthermore, a third screw is rotatably arranged in the cross beam, a movable frame is sleeved on the third screw, a driving shaft is rotatably arranged on the movable frame, a second electric telescopic rod is arranged on the driving shaft, and the adjustment component is installed on the second electric telescopic rod.

[0012] Furthermore, the adjustment component includes a fixed sleeve fixed on the second electric telescopic rod, a fourth screw is rotatably arranged in the fixed sleeve, a movable slider is sleeved on the fourth screw, a movable rod is rotatably arranged around the movable slider, a base plate is arranged at the end of the fixed sleeve away from the second electric telescopic rod, a guide rod is arranged in the base plate, a limit slider is sleeved on the guide rod, a grinding plate is fixed on the limit slider, and an end of the movable rod away from the movable slider is rotatably connected to the limit slider.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model is provided with an adjustable inner wall grinding component, and the position of the grinding plate can be adjusted according to the inner diameter of the steel pipe, so that the grinding plate can be closely attached to the inner wall of the steel pipe, thereby ensuring the grinding efficiency; by arranging two electric telescopic rods and a movable plate on the adjustable inner wall grinding component, the central axis will change due to different steel pipes, so the height of the grinding plate can be adjusted by the first electric telescopic rod, and the movable plate can adjust the lateral position of the grinding plate, and the second electric telescopic rod ensures that the grinding plate can be moved to the weld of the inner wall for grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the roller and the frame of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the adjustable inner wall grinding assembly of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the regulating component of the utility model.

[0020] In the figure: 1, frame; 11, first lead screw; 12, second lead screw; 2, driving roller; 3, roller; 31, bracket; 4, pressure roller; 41, fixed frame; 5, outer wall grinding wheel; 51, telescopic frame; 6, adjustable inner wall grinding assembly; 60, hydraulic cylinder; 61, first electric telescopic rod; 62, crossbeam; 63, third lead screw; 64, movable frame; 65, driving shaft; 66, second electric telescopic rod; 67, adjustment assembly; 671, fixed sleeve; 672, fourth lead screw; 673, movable slider; 674, movable rod; 675, bottom plate; 676, guide rod; 677, limit slider; 68, grinding sheet; 69, transverse slider. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0023] Reference Figure 1-Figure 4 As shown, a grinding device for steel pipe welding includes a frame 1, a driving roller 2 is rotatably arranged in the frame 1, a supporting roller 3 is arranged on one side of the driving roller 2, a pressing roller 4 is arranged on the frame 1, and the pressing roller 4 is rotatably connected to the frame 1 through a fixed frame 41, a steel pipe is inserted from one end of the pressing roller 4, and the steel pipe is supported by the driving roller 2 and the supporting roller 3, and the driving roller 2 can drive the steel pipe to rotate, and the pressing roller 4 can give the steel pipe a pressure to maintain the stability of the steel pipe rotation, and the frame 1 is also provided with an outer wall grinding wheel 5 for grinding the outer wall weld of the steel pipe, and also includes:

[0024] The adjustable inner wall grinding assembly 6 is movably arranged on the frame 1 and can be adjusted according to the inner diameter of the steel pipe so that the grinding assembly can be closely attached to the inner wall of the steel pipe and then grind the inner wall weld of the steel pipe.

[0025] In one embodiment, a first screw 11 is rotatably disposed at the bottom of the frame 1, a bracket 31 is sleeved on the first screw 11, and the roller 3 is rotatably disposed in the bracket 31;

[0026] The roller 3 can move laterally on the frame 1. The spacing between the roller 3 and the driving roller 2 can be adjusted mainly according to the size of the steel pipe, so as to improve the support for the steel pipe.

[0027] In one embodiment, a second lead screw 12 is rotatably disposed on the inner side wall of the frame 1, a telescopic frame 51 is sleeved on the second lead screw 12, and the outer wall grinding wheel 5 is rotatably disposed in the telescopic frame 51;

[0028] The outer wall grinding wheel 5 can move longitudinally along the frame 1. Mainly, after the steel pipe is placed, the outer wall grinding wheel 5 can be moved along the surface of the steel pipe to move to the weld.

[0029] In one embodiment, the adjustable inner wall grinding assembly 6 includes a first electric telescopic rod 61, a crossbeam 62 is provided at the top of the first electric telescopic rod 61, an adjustment assembly 67 is provided on the crossbeam 62, a grinding sheet 68 is provided on the adjustment assembly 67, a transverse sliding block 69 is further provided at the bottom of the first electric telescopic rod 61, and a hydraulic cylinder 60 is provided on the frame 1, and the hydraulic cylinder 60 is used to drive the sliding of the transverse sliding block 69;

[0030] A third lead screw 63 is rotatably arranged in the cross beam 62, a mobile frame 64 is sleeved on the third lead screw 63, a driving shaft 65 is rotatably arranged on the mobile frame 64, a driving member is arranged in the driving shaft 65, a second electric telescopic rod 66 is arranged on the driving shaft 65, and an adjustment component 67 is installed on the second electric telescopic rod 66;

[0031] Since steel pipes of different sizes have different central axes, in order to align the grinding sheet 68 with the steel pipe, the height of the grinding sheet 68 can be adjusted by adjusting the first electric telescopic rod 61, and the grinding sheet 68 can be slid horizontally by rotating the third lead screw 63, so that the grinding sheet 68 and the steel pipe are located on the same central axis. The second electric telescopic rod 66 can drive the grinding sheet 68 to extend into the steel pipe and ensure that the grinding sheet 68 is moved to the weld of the inner wall.

[0032] In one embodiment, the adjustment assembly 67 includes a fixed sleeve 671 fixed on the second electric telescopic rod 66, a fourth lead screw 672 is rotatably arranged in the fixed sleeve 671, a movable slider 673 is sleeved on the fourth lead screw 672, a movable rod 674 is rotatably arranged around the movable slider 673, a bottom plate 675 is arranged at one end of the fixed sleeve 671 away from the second electric telescopic rod 66, a guide rod 676 is arranged in the bottom plate 675, a limit slider 677 is sleeved on the guide rod 676, a grinding sheet 68 is fixed on the limit slider 677, and one end of the movable rod 674 away from the movable slider 673 is rotatably connected to the limit slider 677;

[0033] When facing steel pipes with different inner diameters, by rotating the fourth screw 672, the movable slider 673 moves left and right, and the movable slider 673 will drive the movable rod 674 to deflect, so that the movable rod 674 pulls the limiting slider 677, and then adjusts the sliding of the grinding plate 68 so that the grinding plate 68 can be close to the inner wall of the steel pipe.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A grinding device for steel pipe welding, comprising a frame (1), a driving roller (2) rotatably arranged in the frame (1), a supporting roller (3) arranged on one side of the driving roller (2), a pressure roller (4) arranged on the frame (1), the pressure roller (4) being rotatably connected to the frame (1) through a fixed frame (41), and an outer wall grinding wheel (5) being further arranged on the frame (1), characterized in that: Also includes: An adjustable inner wall grinding component (6) is movably arranged on the frame (1) and is used for grinding the inner wall of the steel pipe.

2. A grinding device for steel pipe welding according to claim 1, characterized in that: A first lead screw (11) is rotatably disposed at the bottom of the frame (1), a bracket (31) is sleeved on the first lead screw (11), and a roller (3) is rotatably disposed in the bracket (31).

3. A grinding device for steel pipe welding according to claim 1, characterized in that: A second lead screw (12) is rotatably arranged on the inner side wall of the frame (1), a telescopic frame (51) is sleeved on the second lead screw (12), and an outer wall grinding wheel (5) is rotatably arranged in the telescopic frame (51).

4. A grinding device for steel pipe welding according to claim 1, characterized in that: The adjustable inner wall grinding assembly (6) comprises a first electric telescopic rod (61), a crossbeam (62) is arranged at the top of the first electric telescopic rod (61), an adjustment assembly (67) is arranged on the crossbeam (62), a grinding sheet (68) is arranged on the adjustment assembly (67), a transverse sliding block (69) is arranged at the bottom of the first electric telescopic rod (61), and a hydraulic cylinder (60) is arranged on the frame (1), and the hydraulic cylinder (60) is used to drive the transverse sliding block (69) to slide.

5. A grinding device for steel pipe welding according to claim 4, characterized in that: A third lead screw (63) is rotatably arranged in the cross beam (62), a movable frame (64) is sleeved on the third lead screw (63), a driving shaft (65) is rotatably arranged on the movable frame (64), a second electric telescopic rod (66) is arranged on the driving shaft (65), and an adjustment component (67) is installed on the second electric telescopic rod (66).

6. A grinding device for steel pipe welding according to claim 5, characterized in that: The adjustment component (67) comprises a fixed sleeve (671) fixed on the second electric telescopic rod (66), a fourth lead screw (672) is rotatably arranged in the fixed sleeve (671), a movable slider (673) is sleeved on the fourth lead screw (672), a movable rod (674) is rotatably arranged around the movable slider (673), a bottom plate (675) is arranged at one end of the fixed sleeve (671) away from the second electric telescopic rod (66), a guide rod (676) is arranged in the bottom plate (675), a limit slider (677) is sleeved on the guide rod (676), a grinding sheet (68) is fixed on the limit slider (677), and one end of the movable rod (674) away from the movable slider (673) is rotatably connected to the limit slider (677).

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