Device for machining mounting holes of large flange equipment

Abstract

A device for machining a mounting hole of large flange equipment relates to the technical field of machining and comprises a magnetic drill and a positioning mechanism, the magnetic drill is adsorbed on the positioning mechanism, the positioning mechanism comprises a positioning plate, a guide hole is formed in the center of the plate surface of the positioning plate, two positioning holes are symmetrically formed in the two sides of the guide hole, and the magnetic drill is arranged on the positioning plate. Positioning bolts are arranged in the two positioning holes, and fastening nuts are in threaded connection with the positioning bolts; an inclined strut is arranged at the bottom of the positioning plate, the included angle between the top face of the inclined strut and the bottom face of the positioning plate is an acute angle, a vertical plate is arranged at the end, away from the positioning plate, of the inclined strut, two threaded holes are symmetrically formed in the plate face of the vertical plate along the central axis of the vertical plate, and puller bolts are connected into the two threaded holes in a threaded mode. When the device is used for machining the flange mounting hole, the flange does not need to be disassembled, manual lineation is not needed, the drilling precision is high, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a device for processing mounting holes of large flange equipment. Background Art

[0002] In the fields of offshore oil engineering, wind power engineering and petrochemical engineering, flange bolt structures are usually used for the fixed installation of large equipment. When upgrading and renovating old equipment, there may be a situation where the mounting holes on the new equipment do not correspond to the flange mounting holes of the old equipment. In this case, the mounting holes need to be re-processed on the flange.

[0003] At present, the processing of new holes has the following problems:

[0004] 1. Because the flange has been installed in place, the cost of disassembly and processing is high. In most cases, the flange cannot be disassembled, and processing requires the use of large processing equipment;

[0005] 2. When using a magnetic drill for processing, the new hole needs to be manually marked. However, due to the presence of obstructions, the marking accuracy is low and it is difficult to meet the equipment installation requirements. At the same time, the mounting surface on the flange is narrow, and the magnetic drill cannot be directly adsorbed on the flange. Utility Model Content

[0006] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a device for processing mounting holes of large flange equipment, which can solve the above technical problems.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A device for processing mounting holes for large flange equipment, comprising a magnetic drill and a positioning mechanism, the magnetic drill being adsorbed on the positioning mechanism, the positioning mechanism comprising a positioning plate, a guide hole being provided at the center of the plate surface of the positioning plate, two positioning holes being symmetrically provided on both sides of the guide hole, positioning bolts being provided in the two positioning holes, and fastening nuts being threadedly connected to the positioning bolts; an oblique support being provided at the bottom of the positioning plate, an acute angle being included between the top surface of the oblique support and the bottom surface of the positioning plate, a vertical plate being provided at one end of the oblique support away from the positioning plate, two threaded holes being symmetrically provided on the plate surface of the vertical plate along the central axis of the vertical plate, and tightening bolts being threaded in the two threaded holes.

[0009] Preferably, a stopper is provided on the bottom surface of the positioning plate, and the size of the stopper matches the outer diameter of the flange.

[0010] Preferably, the positioning plate is further provided with a lifting hole on its surface.

[0011] Compared with the prior art, the beneficial effects of the utility model are that flange mounting holes are processed by using the device, the flange does not need to be disassembled, manual line marking is not needed, drilling precision is high, and operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a positioning mechanism structure schematic view of the utility model;

[0015] Figure 3 It is an installation effect drawing of the utility model.

[0016] Marked with the following drawings:

[0017] 1-magnetic drill, 2-positioning mechanism, 21-positioning plate, 22-guide hole, 23-positioning hole, 24-positioning bolt, 25-fastening nut, 26-inclined support, 27-stand plate, 28-threaded hole, 29-tightening bolt, 3-flange, 4-lifting hole. DETAILED DESCRIPTION

[0018] The content created by the utility model will be described in detail in the form of examples below, and obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. EMBODIMENT

[0019] As Figures 1 to 3As shown, the utility model discloses a device for processing mounting holes of large flange equipment, comprising a magnetic drill 1 and a positioning mechanism 2, wherein the magnetic drill 1 is adsorbed on the positioning mechanism 2, and the positioning mechanism 2 is mounted on a flange 3. The guide holes 22 are symmetrically provided on both sides of the guide hole 22, and the two positioning holes 23 are provided with positioning bolts 24, and the positioning bolts 24 are threadedly connected with fastening nuts 25, which facilitate the fixing of the positioning mechanism 2 to the flange 3. The positioning holes 23, positioning bolts 24 and fastening nuts 25 are provided. The positioning mechanism 2 is fixed to the flange 3 by setting the positioning holes 23, positioning bolts 24 and fastening nuts 25. The bottom of the positioning plate 21 is welded with an oblique support 26, and the angle between the top surface of the oblique support 26 and the bottom surface of the positioning plate 21 is an acute angle. The end of the oblique support 26 away from the positioning plate 21 is welded with a vertical plate 27, and the plate surface of the vertical plate 27 is symmetrically provided with two threaded holes 28 along the central axis of the vertical plate 27. The two threaded holes 28 are threaded with tightening bolts 29, which can play an auxiliary supporting role for the device.

[0020] Furthermore, in this embodiment, a stopper is provided on the bottom surface of the positioning plate 21 , and the size of the stopper matches the outer diameter of the flange 3 , which is beneficial for positioning the device.

[0021] Furthermore, in this embodiment, a hoisting hole 4 is provided on the surface of the positioning plate 21 to facilitate hoisting of the device.

[0022] During installation, place the positioning plate 21 on the flange surface, insert the positioning bolt 24 through the original mounting hole, and tighten it with the fastening nut 25. Then, tighten the jacking bolt 29 to provide auxiliary support for the device. After installation, place the magnetic drill 1 on the positioning plate 21, and make the drill bit of the magnetic drill 1 concentric with the guide hole 22 on the positioning plate 21. This will prevent the new mounting hole from being tilted. After drilling is completed, remove the positioning mechanism 2 by loosening the fastening nut 25 and the jacking bolt 29, and proceed to the next mounting hole.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and application concept of the present invention, should be covered by the protection scope of the present invention.

Claims

1. A device for machining mounting holes for large flange equipment, comprising a magnetic drill (1) and a positioning mechanism (2), wherein the magnetic drill (1) is adsorbed on the positioning mechanism (2), and characterized in that: The positioning mechanism (2) includes a positioning plate (21), a guide hole (22) is provided at the center of the plate surface of the positioning plate (21), two positioning holes (23) are symmetrically provided on both sides of the guide hole (22), and positioning bolts (24) are provided in the two positioning holes (23), and fastening nuts (25) are threadedly connected to the positioning bolts (24); an oblique support (26) is provided at the bottom of the positioning plate (21), and the angle between the top surface of the oblique support (26) and the bottom surface of the positioning plate (21) is an acute angle, and a vertical plate (27) is provided at one end of the oblique support (26) away from the positioning plate (21), and two threaded holes (28) are symmetrically provided on the plate surface of the vertical plate (27) along the central axis of the vertical plate (27), and tightening bolts (29) are threadedly connected to the two threaded holes (28).

2. The device for machining large flange equipment mounting holes according to claim 1, characterized in that: A stopper is provided on the bottom surface of the positioning plate (21), and the size of the stopper matches the outer diameter of the flange (3).

3. The device for machining large flange equipment mounting holes according to claim 1, characterized in that: A lifting hole (4) is also provided on the surface of the positioning plate (21).

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