Special tool for adjusting cutter of large-diameter pipeline beveling machine

Abstract

The invention relates to the field of oil and gas pipeline gathering and transportation, in particular to a special tool for adjusting a large-diameter pipeline beveling machine cutter. The problems that when an existing beveling machine is used for machining a groove, a cutter needs to be adjusted many times, time is wasted, and loss is caused are mainly solved. The tool comprises a fixing base (1), a Y-axis sliding rail (2) is fixed to the fixing base (1), and a Y-axis sliding table (3) is connected to the Y-axis sliding rail (2) in a sliding mode; a Z-axis sliding rail (5) is fixed on the Y-axis sliding table (3), and a Z-axis sliding table (6) is connected to the Z-axis sliding rail (5) in a sliding manner; an X-axis sliding rail (8) is fixed to the Z-axis sliding table (6), an X-axis sliding table (9) is connected to the X-axis sliding rail (8) in a sliding mode, and a measuring block (10) is fixed to the X-axis sliding table (9). According to the special tool for adjusting the large-diameter pipeline beveling machine tool, accurate positioning of the beveling machine tool bar can be achieved, the tool can be rapidly adjusted to the accurate position, accurate control over beveling is achieved, time is saved, and loss is reduced.

Description

Technical Field

[0001] This invention relates to the field of oil and gas pipeline gathering and transportation, specifically a special tool for adjusting the cutter of a large-diameter pipeline beveling machine. Background Technology

[0002] Beveling on large-diameter pipes is a cold-cutting process used for beveling pipes before welding. It is widely applied in the fully automated welding of large-diameter oil and gas pipelines, where high precision is required, as the beveling accuracy directly affects the welding quality. During beveling, the cutting tool needs to be adjusted to achieve a bevel shape that conforms to the welding process specifications. Conventional beveling machines rely solely on experience and visual observation for tool adjustment, as measuring tools like calipers cannot provide precise measurements, resulting in relatively large adjustment errors. Each tool adjustment requires first machining and measuring the bevel to use as a reference for readjusting the tool holder and tool position. During construction, the cutting tool needs frequent calibration to avoid mechanical errors during beveling, necessitating frequent tool holder adjustments. Especially during initial tool adjustments or changes in pipe wall thickness, ensuring beveling accuracy can require 1-2 days of repeated adjustments and testing, wasting significant manpower and time, and generating additional tool wear and equipment oil consumption. Summary of the Invention

[0003] To overcome the shortcomings of existing beveling machines that require multiple tool adjustments during beveling, resulting in wasted time and wear, this invention provides a special tool for adjusting the tools of a large-diameter pipe beveling machine. This tool enables precise positioning of the beveling machine's tool holder, allowing the tool to be quickly adjusted to the accurate position, achieving precise control of beveling processing, saving time, and reducing wear.

[0004] The technical solution of the present invention is: a special tool for adjusting the cutter of a large-diameter pipe beveling machine, comprising a fixed base, a Y-axis slide rail fixed on the fixed base, a Y-axis slide table slidably connected on the Y-axis slide rail; a Z-axis slide rail fixed on the Y-axis slide table, a Z-axis slide table slidably connected on the Z-axis slide rail; an X-axis slide rail fixed on the Z-axis slide table, an X-axis slide table slidably connected on the X-axis slide rail, and a measuring block fixed on the X-axis slide table.

[0005] Furthermore, a Y-axis digital display is fixed on the Y-axis slide, a Z-axis digital display is fixed on the Z-axis slide, and an X-axis digital display is fixed on the X-axis slide.

[0006] Furthermore, scales are fixed on the side walls of the X-axis slide rail, Y-axis slide rail, and Z-axis slide rail.

[0007] Furthermore, the fixing base is U-shaped, including an upper plate, a lower plate, and a vertical plate, and the Y-axis slide rail is fixed to the outside of the vertical plate.

[0008] Furthermore, the Y-axis slide rail includes two slide rail seats, which are respectively fixed at the upper and lower ends of the fixed base. Two parallel guide rods are connected between the two slide rail seats. A rotatable screw is connected at the center of the two slide rail seats. One end of the screw is movably connected to the lower slide rail seat, and the other end of the screw extends out from the upper slide rail seat.

[0009] Furthermore, the guide rod passes through the Y-axis slide, and the Y-axis slide is threadedly connected to the screw.

[0010] Furthermore, the measuring block is L-shaped, with the L-shaped flat plate fixed on the X-axis slide and the L-shaped upright plate pointing vertically downwards.

[0011] Furthermore, the lower end face of the measuring block's upright plate is the measuring surface, and the left and right sides below the upright plate are inclined surfaces, with the lower edges of the two inclined surfaces forming sharp edges with the measuring surface.

[0012] Furthermore, when adjusting the cutter, fix the mounting base on the cutter holder, and adjust the X-axis slide, Y-axis slide, and Z-axis slide so that the measuring surface at the lower end of the measuring block contacts the guide roller surface of the beveling machine; move the Y-axis slide to move the measuring block from the guide roller plane to the required beveling inflection point height; move the Z-axis slide to align one side of the measuring surface of the measuring block with the plane of the blade; then move the X-axis slide to move the tip of the measuring block in the direction of the large disc to the plane of the blade. At this point, the position of the tip of the measuring block is the position of the cutter bar. Adjust the blade to the position of the tip of the measuring block in the direction of the large disc, tighten the locking bolt to fix the cutter bar, and complete the cutter adjustment process.

[0013] This invention offers the following advantages: By employing the aforementioned scheme, the tool, through a three-dimensional slide assembly, allows the measuring block to move freely in three directions. Coupled with a digital precision measuring scale, it achieves precise positioning and measurement on a three-dimensional scale, enabling accurate positioning and measurement of the tool holder and blade positions. Through tool holder fixing and guide roller positioning, the required reference position for tool adjustment can be quickly and accurately located. Then, the measuring tip is adjusted to the reference position, allowing for tool positioning and adjustment according to process requirements. This controls the accuracy of beveling and can be widely applied to operations requiring beveling, improving the accuracy and efficiency of beveling from the perspective of precise tool positioning. Furthermore, the tool has a simple structure, is easy to install and disassemble, and is convenient to operate, improving the efficiency of beveling machine tool adjustment and significantly reducing the time required for each tool adjustment. Fine-tuning allows for a step stroke of 0.01mm, improving tool adjustment accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention;

[0015] Figure 2 These are schematic diagrams of the invention from different perspectives;

[0016] Figure 3This is a schematic diagram of the invention in operation.

[0017] In the diagram, 1-fixed base, 2-Y-axis slide rail, 3-Y-axis slide table, 4-Y-axis digital display, 5-Z-axis slide rail, 6-Z-axis slide table, 7-Z-axis digital display, 8-X-axis slide rail, 9-X-axis slide table, 10-measuring block, 11-bolt hole, 12-guide roller, 13-tool bar, 21-slide rail seat, 22-screw, 23-guide rod. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "inner," "outer," "top," and "bottom" are based on the orientations or positional relationships shown in the accompanying drawings. They are intended only to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the components referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Depend on Figures 1 to 3 As shown, a special tool for adjusting the cutter of a large-diameter pipe beveling machine includes a fixed base 1, a Y-axis slide rail 2 fixed on the fixed base 1, a Y-axis slide table 3 slidably connected to the Y-axis slide rail 2, a Z-axis slide rail 5 fixed on the Y-axis slide table 3, a Z-axis slide table 6 slidably connected to the Z-axis slide rail 5, an X-axis slide rail 8 fixed on the Z-axis slide table 6, an X-axis slide table 9 slidably connected to the X-axis slide rail 8, and a measuring block 10 fixed on the X-axis slide table 9. With this structure, the X-axis slide table 9 can drive the measuring block 10 to slide along the X-axis slide rail 8, the Z-axis slide table 6 can drive the X-axis slide table 9 and the measuring block 10 to slide along the Z-axis slide rail 5, and the Y-axis slide table 3 can drive the Z-axis slide table 6, the X-axis slide table 9, and the measuring block 10 to slide along the Y-axis slide rail 2, thereby realizing the movement of the measuring block 10 along the X, Y, and Z axes.

[0021] A Y-axis digital display 4 is fixed to one side of the Y-axis slide 3, a Z-axis digital display 7 is fixed to one side of the Z-axis slide 6, and an X-axis digital display is also fixed to one side of the X-axis slide 8. A scale is fixed on the side wall of the X-axis slide 8, Y-axis slide 2, and Z-axis slide 5. When the X-axis slide 8, Y-axis slide 3, and Z-axis slide 6 move, the corresponding digital displays can show the distance moved in their respective directions. At the same time, the distance moved can also be seen through the scale on the scale.

[0022] The fixing base 1 is a horizontally placed U-shape, see Figure 1 The fixed base 1 includes an upper plate, a lower plate, and a vertical plate. The upper and lower plates are parallel, and the vertical plate is fixed between the upper and lower plates. Bolt holes are opened on the upper and lower plates, and bolts pass through the bolt holes to fix the fixed base 1 to the tool holder of the beveling machine, thereby fixing the entire device to the tool holder. The Y-axis slide rail 2 is fixed to the outside of the vertical plate, while the Y-axis scale and Y-axis digital display 4 are located in front of the Y-axis slide table 3.

[0023] The measuring block 10 is L-shaped, with an L-shaped flat plate on top, fixed on the X-axis slide table 9. The L-shaped vertical plate faces downwards, and the lower end face of the vertical plate is the measuring surface, which contacts the guide roller 12 of the beveling machine during measurement. The lower end face of the vertical plate can be appropriately widened. At the same time, the left and right sides below the measuring block are inclined surfaces, and the lower edges of the two inclined surfaces together with the measuring surface form a sharp edge.

[0024] The Y-axis slide rail 2, Z-axis slide rail 5, and X-axis slide rail 8 can adopt various structures to enable the slide table on them to move linearly. Examples include dovetail grooves and their mating sliders, lead screws and nuts, worm gears and worm wheels, etc. Here, the structure of the Y-axis slide rail 2 and Y-axis slide table 3 is described using a screw and nut mating structure as an example. The Y-axis slide rail 2 includes two slide rail seats 21, which are fixed to the upper and lower ends of the vertical plate in the fixed base 1, respectively. Two parallel guide rods 23 connect the two slide rail seats 21. The guide rods 23 are smooth rods, with both ends fixed to the two slide rail seats 21, and are symmetrical about the center of the two slide rail seats 21. A rotatable screw 22 is connected to the center of the two slide rail seats 21. One end of the screw 22 is movably connected to the lower slide rail seat 21, and the other end extends from the upper slide rail seat 21. An axial limiting block is provided on one or both slide rails, so that the screw 22 can rotate but cannot move axially.

[0025] The Y-axis slide 3 is L-shaped, with one side perpendicular to the Y-axis slide rail 2. The Z-axis slide rail 5 is connected to this side, and the other side of the L-shape is threaded to the screw 22. Rotating the screw 22 allows the Y-axis slide 3 to move up and down. Simultaneously, two guide rods 23 pass through the Y-axis slide 3, guiding and straightening the slide as it moves, ensuring stability and preventing tilting.

[0026] The Z-axis slide rail 5, X-axis slide rail 8 and Y-axis slide rail 2 have the same structure, and will not be described again here.

[0027] This tool can be used on both external clamping beveling machines and internal expansion beveling machines. Before processing the beveling, fix this special tool to the tool holder through the bolt holes 11 on the fixing base 1, making the vertical plate of the fixing base 1 parallel to the tool holder. Adjust the X-axis slide 9, Y-axis slide 3, and Z-axis slide 6 in sequence so that the measuring surface at the bottom of the measuring block 10 contacts the surface of the guide roller 12 of the beveling machine. Then, perform positioning measurements on the tool holder 13 and the blade position. The specific process is as follows: Place the tool holder 13 into the tool holder. First, through the movement of the three-dimensional slide, make the bottom measuring surface of the measuring block 10 coincide with the plane of the guide roller 12. Since the plane of the guide roller is parallel to the inner wall of the pipe, the measuring block 10 is now flush with the inner wall of the pipe. At this time, move the Y-axis slide... Platform 3 moves the measuring block 10 from the plane of guide roller 12 to the required inflection point height of the bevel. The Z-axis slide 6 is moved so that the sharp edge of the measuring block 10 is aligned with the plane of the blade. Then the X-axis slide 9 is moved so that the sharp end of the measuring block in the direction of the large plate is moved to the plane of the blade on the tool holder. At this time, the position of the sharp end of the measuring block is the position of the tool holder 13. The blade on the tool holder is adjusted to the position of the sharp end of the measuring block in the direction of the large plate using the tool holder shim and the eccentric shaft of the tool holder. The locking bolt is tightened to fix the tool holder, and the tool adjustment process is completed.

[0028] This tool, through a combination of three-dimensional slides and a digital precision measuring scale, achieves precise positioning and measurement on a three-dimensional scale. It enables caliper-level precision positioning and measurement of the tool holder and blade position. By fixing the tool holder and positioning the guide rollers, the reference position required for tool adjustment can be quickly and accurately found. Then, the measuring tip is adjusted to the reference position, that is, the tool position is positioned and adjusted according to the process requirements, thereby controlling the accuracy of beveling. It can be widely used in operations that require beveling, improving the accuracy and efficiency of beveling from the perspective of precise tool positioning.

[0029] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A special tool for adjusting the cutter of a large-diameter pipe beveling machine, comprising a fixing base (1), characterized in that: The fixed base (1) has a Y-axis slide rail (2) fixed on it, and a Y-axis slide table (3) is slidably connected to the Y-axis slide rail (2); the Y-axis slide table (3) has a Z-axis slide rail (5) fixed on it, and a Z-axis slide table (6) is slidably connected to the Z-axis slide rail (5); the Z-axis slide table (6) has an X-axis slide rail (8) fixed on it, and an X-axis slide table (9) is slidably connected to the X-axis slide rail (8), and a measuring block (10) is fixed on the X-axis slide table (9).

2. The special tool for adjusting the cutter of a large-diameter pipe beveling machine according to claim 1, characterized in that: A Y-axis digital display (4) is fixed on the Y-axis slide (3), a Z-axis digital display (7) is fixed on the Z-axis slide (6), and an X-axis digital display is fixed on the X-axis slide (9).

3. The special tool for adjusting the cutter of a large-diameter pipe beveling machine according to claim 2, characterized in that: A scale is fixed on the side wall of the X-axis slide rail (8), Y-axis slide rail (2) and Z-axis slide rail (5).

4. The special tool for adjusting the cutter of a large-diameter pipe beveling machine according to claim 3, characterized in that: The fixed base (1) is U-shaped and includes an upper plate, a lower plate and a vertical plate. The Y-axis slide rail (2) is fixed on the outside of the vertical plate.

5. The special tool for adjusting the cutter of a large-diameter pipe beveling machine according to claim 4, characterized in that: The Y-axis slide rail (2) includes two slide rail seats (21), which are fixed at the upper and lower ends of the fixed base (1) respectively. Two parallel guide rods (23) are connected between the two slide rail seats (21). A rotatable screw (22) is connected at the center of the two slide rail seats (21). One end of the screw (22) is movably connected to the lower slide rail seat (21), and the other end of the screw (22) extends from the upper slide rail seat (21).

6. The special tool for adjusting the cutter of a large-diameter pipe beveling machine according to claim 5, characterized in that: The guide rod (23) passes through the Y-axis slide (3), and the Y-axis slide (3) is threaded onto the screw (22).

7. The special tool for adjusting the cutter of a large-diameter pipe beveling machine according to claim 6, characterized in that: The measuring block (10) is L-shaped, with the L-shaped plate fixed on the X-axis slide (9) and the L-shaped vertical plate pointing vertically downwards.

8. The special tool for adjusting the cutter of a large-diameter pipe beveling machine according to claim 7, characterized in that: The lower end face of the measuring block (10) is the measuring surface, and the left and right sides below the measuring block are inclined surfaces. The lower edges of the two inclined surfaces and the measuring surface form sharp edges respectively.

9. The special tool for adjusting the cutter of a large-diameter pipe beveling machine according to any one of claims 1-8, characterized in that: When adjusting the tool, fix the fixed seat (1) on the tool holder, adjust the X-axis slide (9), Y-axis slide (3) and Z-axis slide (6) so that the measuring surface at the lower end of the measuring block (10) contacts the surface of the guide roller (12) of the beveling machine; move the Y-axis slide (3) to move the measuring block (10) from the plane of the guide roller (12) to the required beveling inflection point height, move the Z-axis slide (6) so that one side of the measuring surface of the measuring block (10) is aligned with the plane of the blade, and then move the X-axis slide (9) to move the tip of the measuring block in the direction of the large plate to the plane of the blade. At this time, the tip of the measuring block (10) is the position of the tool bar (13). Adjust the blade to the tip position of the measuring block in the direction of the large plate, tighten the bolt to fix the tool bar, and complete the tool adjustment process.

Images