Pipe fitting beveling machine

Abstract

The utility model provides a pipe fitting beveling machine. The pipe fitting beveling machine comprises a base frame; the driving device is arranged on the base frame; the beveling tool is in transmission connection with the driving device, and the driving device can drive the beveling tool to rotate so as to conduct beveling machining on the pipe fitting; the workbench is arranged on one side of the beveling tool and comprises a horizontally-arranged table top, when the beveling tool is used for beveling the pipe fitting, the table top is used for supporting the pipe fitting, and scale marks are arranged on the table top; and the plurality of limiting tools are used for limiting the pipe fittings when the pipe fittings are measured, a plurality of mounting holes are further formed in the table top, and the mounting holes are used for mounting the limiting tools. According to the pipe fitting beveling machine, the scale marks and the mounting holes are formed in the table top of the workbench, the limiting tool is matched to limit the pipe fitting when the pipe fitting is measured, the pipe fitting subjected to beveling machining can be conveniently and rapidly measured on the workbench, the heavy carrying work of the pipe fitting is reduced, the labor cost is reduced, and the working efficiency is improved. The labor time is saved, and the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of edge trimming or finishing technology, specifically to pipe beveling machines. Background Technology

[0002] A pipe beveling machine is a specialized piece of machinery used to process bevels (sloping surfaces or cuts of a specific shape) on the end faces of pipes or fittings. It is mainly used for pretreatment before welding. Beveling ensures the quality and strength of the welded joint and reduces welding defects.

[0003] After beveling pipe fittings, it is often necessary to measure their dimensions to ensure they meet usage requirements. In existing technology, this measurement often requires transferring the beveled pipe fittings from the beveling machine to a dedicated measuring platform. This process is cumbersome, time-consuming, and labor-intensive. Utility Model Content

[0004] To at least partially solve the above problems, embodiments of this application provide a pipe beveling machine, comprising: a base frame; a drive device mounted on the base frame; a beveling cutter connected to the drive device, the drive device being able to drive the beveling tool to rotate for beveling the pipe; a worktable mounted on one side of the beveling cutter, the worktable including a horizontally arranged table surface, the table surface being used to support the pipe during beveling, wherein the table surface is provided with scale lines; and multiple limiting fixtures for limiting the pipe during pipe measurement, the table surface also having multiple mounting holes for mounting the limiting fixtures.

[0005] In some embodiments, the scale lines include multiple parallel and equally spaced horizontal scale lines and multiple parallel and equally spaced vertical scale lines, wherein the horizontal scale lines and vertical scale lines are arranged perpendicularly to each other, and the multiple horizontal scale lines and multiple vertical scale lines are distributed in a grid pattern.

[0006] In some embodiments, the distance between two adjacent transverse scale lines is equal to the distance between two adjacent longitudinal scale lines, and the mounting hole is opened at the center of a single grid formed by the transverse and longitudinal scale lines; the limiting fixture includes a mounting base and a positioning plate, the positioning plate being vertically connected to the mounting base, the mounting base and the positioning plate having straight, coplanar edges for abutting against the pipe fitting, and the mounting base having two parallel through slots, the distance between the two through slots being an integer multiple of the side length of a single grid.

[0007] In some embodiments, the distance between two adjacent horizontal scale lines and the distance between two adjacent vertical scale lines are both 10cm; nine first centimeter scale lines perpendicular to the vertical scale lines are equidistantly arranged on the vertical scale lines between two adjacent horizontal scale lines, and the first centimeter scale lines adjacent to the horizontal scale lines are 1cm away from the horizontal scale lines; nine second centimeter scale lines perpendicular to the horizontal scale lines are equidistantly arranged on the horizontal scale lines between two adjacent vertical scale lines, and the second centimeter scale lines adjacent to the vertical scale lines are 1cm away from the vertical scale lines.

[0008] In some embodiments, a first half-centimeter scale line parallel to the first centimeter scale line is provided at the midpoint between two adjacent first centimeter scale lines, and the length of the first centimeter scale line is less than that of the first centimeter scale line; a second half-centimeter scale line parallel to the second centimeter scale line is also provided at the midpoint between two adjacent second centimeter scale lines, and the length of the second centimeter scale line is less than that of the second centimeter scale line.

[0009] In some embodiments, the workbench further includes a base, and the workbench and the base are connected at an adjustable distance; the workbench includes a horizontal support plate and two vertical mounting plates, the support plate is rectangular with scale lines set on the support plate, the two mounting plates are respectively connected perpendicularly to the support plate and located below a set of opposite edges of the support plate, and both mounting plates are slidably connected to the base.

[0010] In some embodiments, the pipe beveling machine further includes at least two rectangular vernier limiting plates, which are slidably disposed on the edge of the support plate. The plane of the vernier limiting plate is perpendicular to the plane of the support plate. The edge of the support plate is provided with a horizontal scale line and a vertical scale line, and the bottom edge of the vernier limiting plate is located on the horizontal scale line or the vertical scale line.

[0011] In some embodiments, the pipe beveling machine further includes two lead screw mechanisms and a servo motor. The table and the base are also connected by two lead screw mechanisms. The servo motor is driven by the lead screw mechanism to adjust the distance between the table and the base.

[0012] In some embodiments, the pipe beveling machine further includes a clamping mechanism disposed between the worktable and the beveling tool. The clamping mechanism is used to fix the pipe during the beveling process. The clamping mechanism includes two columns, an upper clamping plate, a lower clamping plate, a drive cylinder, and a position fine-tuning plate. The two columns are arranged parallel and spaced apart on the base frame, and each column has a sliding groove, which is arranged opposite to each other. The two ends of the upper and lower clamping plates are slidably disposed in the two sliding grooves. The upper clamping plate has a first semi-circular notch on the side facing the lower clamping plate, and the lower clamping plate has a second semi-circular notch on the side facing the upper clamping plate. The first and second semicircular notches have equal radii; the cylinder body of the drive cylinder is fixedly connected to the column, and the piston rod of the drive cylinder is connected to the upper clamping plate; the position fine-tuning plate is located between the two columns and is coplanar with the lower clamping plate, the position fine-tuning plate is located below the lower clamping plate and abuts against the lower clamping plate, the bottom edge of the lower clamping plate is a bevel, the top edge of the position fine-tuning plate has the same inclination angle as the bottom edge of the lower clamping plate, the position fine-tuning plate is connected to the column through a screw, the width of the position fine-tuning plate is less than the distance between the two columns, and the rotation of the screw can make the position fine-tuning plate move horizontally in the plane where the position fine-tuning plate is located.

[0013] In some embodiments, the pipe beveling machine further includes a pointer and a scale. The pointer is disposed on the edge of the table adjacent to the clamping mechanism, and the scale is vertically disposed on the column. The projection of the pointer in the plane of the scale is located on the scale.

[0014] The pipe beveling machine provided in the embodiments of this application, by setting scale lines and mounting holes on the workbench, and using limiting fixtures to limit the pipe during pipe measurement, can conveniently and quickly complete the measurement of the beveled pipe on the workbench, thereby obtaining the relevant dimensional parameters of the pipe, reducing the heavy handling of pipes, lowering labor costs, saving labor time, and improving work efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a pipe beveling machine provided in an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the limiting tooling provided in an embodiment of this application;

[0018] Figure 3This is a schematic diagram from another angle of the pipe beveling machine provided in the embodiments of this application;

[0019] Figure 4 This is a schematic diagram of the pipe beveling machine provided in an embodiment of this application from another angle;

[0020] Figure 5 This is a schematic diagram of the scale lines provided on the surface of the workbench according to an embodiment of this application.

[0021] The attached figures are labeled as follows:

[0022] 10. Base frame; 20. Drive unit; 30. Beveling tool; 40. Worktable; 41. Table surface; 411. Support plate; 412. Mounting plate; 42. Base; 43. Servo motor; 50. Fixture mechanism; 51. Column; 52. Upper clamping plate; 53. Lower clamping plate; 54. Drive cylinder; 55. Position fine-tuning plate; 61. Mounting seat; 62. Positioning plate; 63. Through slot.

[0023] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0024] The preferred embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection claimed in this application.

[0025] The terms "first," "second," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0026] A pipe beveling machine is a specialized piece of equipment used to process specific bevel shapes at the ends of pipes or fittings. It is widely used in petrochemical, shipbuilding, pressure vessel, and pipeline engineering industries. Its working principle involves cutting, grinding, or milling to process the pipe ends into bevels (such as V-shaped, U-shaped, and J-shaped bevels) that meet welding requirements, ensuring good fusion, strength, and airtightness of the welded joint. Beveling machines are available in manual, electric, hydraulic, and CNC types, adaptable to different materials (carbon steel, stainless steel, alloy steel, etc.) and pipe diameters.

[0027] After beveling the pipe fittings, it is usually necessary to measure their dimensions. These dimensions may include the outer and inner diameters of the pipe ends, the perpendicularity of the pipe end face, and the length of the pipe. In related technologies, when measuring the dimensions of the processed pipe fittings, it is usually necessary to move the pipe fittings to a dedicated measuring platform before taking measurements. However, some larger pipe fittings often weigh tens or even hundreds of kilograms. In such cases, measuring them using the above method is cumbersome, time-consuming, inefficient, and labor-intensive.

[0028] To at least partially solve the above problems, embodiments of this application provide a pipe beveling machine, such as... Figure 1 and Figure 2 As shown, the pipe beveling machine includes a base frame 10, a drive device 20, a beveling cutter 30, a worktable 40, and multiple limiting fixtures. The drive device 20 is mounted on the base frame 10. The beveling cutter 30 is connected to the drive device, and the drive device 20 can drive the beveling tool to rotate to perform beveling on the pipe. The worktable 40 is located on one side of the beveling cutter 30. The worktable 40 includes a horizontally arranged table surface 41, which supports the pipe during beveling. The table surface 41 has graduation lines. Multiple limiting fixtures are used to limit the pipe during measurement. The table surface 41 also has multiple mounting holes for mounting the limiting fixtures. For example, the mounting holes can be screw holes, and the limiting fixtures can be fixed to the mounting holes with bolts.

[0029] The base frame 10 can serve as a mounting carrier for other components of the pipe beveling machine, and can be positioned adjacent to the worktable 40. The drive unit 20 and the beveling cutter 30 are connected via a gearbox to transmit the torque output by the drive unit 20 to the beveling cutter 30 at the desired rotational speed. The beveling cutter 30 may include a mounting disc and a cutting blade. The cutting blade is detachably mounted on the mounting disc, and the center of the mounting disc is fixedly connected to the output shaft of the gearbox. The drive unit 20 drives the mounting disc to rotate via the gearbox, thereby moving the cutting blade. The gearbox can be slidably mounted on the base frame 10 and can slide along the axial direction of the mounting disc to adjust the relative position of the beveling cutter 30 and the pipe fitting. The gearbox can also be driven by a motor to achieve this sliding motion. When beveling the pipe fitting, the pipe fitting can be placed on the table surface 41 of the worktable 40. The end that needs to be beveling extends beyond the edge of the table surface 41 and is close to the beveling tool 30. After positioning the pipe fitting, the drive device 20 is started. The drive device 20 drives the beveling tool 30 to rotate, and at the same time the gearbox moves towards the end of the pipe fitting to complete the beveling of the end of the pipe fitting.

[0030] After beveling the pipe fitting, release the pipe fitting from the fixation. Then, according to the type of pipe fitting size to be measured, adjust the positional relationship between the pipe fitting and the scale line on the table 41 to facilitate the corresponding size measurement. Then, abut the limiting fixture against the pipe fitting and fix the limiting fixture to the mounting hole on the table 41 with bolts. Finally, obtain the size reading of the pipe fitting by combining the positional relationship between the limiting fixture and the scale line on the table 41.

[0031] The pipe beveling machine provided in the embodiments of this application, by setting scale lines and mounting holes on the table surface 41 of the workbench 40, and using a limiting fixture to limit the pipe during pipe measurement, can conveniently and quickly complete the measurement of the beveled pipe on the workbench 40, thereby obtaining the relevant dimensional parameters of the pipe, reducing the heavy handling of pipes, lowering labor costs, saving labor time, and improving work efficiency.

[0032] In some embodiments, the scale lines include multiple parallel and equally spaced horizontal scale lines and multiple parallel and equally spaced vertical scale lines. The horizontal and vertical scale lines intersect perpendicularly, and the multiple horizontal and vertical scale lines are distributed in a grid pattern. In this embodiment, by setting the scale lines in a grid pattern, the coverage area of ​​the scale lines can be increased, and the distribution dimension of the scale lines can be increased. This reduces the restrictions on the placement position and orientation of the pipes when moving them, further reducing the workload of moving the pipes. Preferably, the grid pattern of scale lines can cover the entire surface of the workbench 40.

[0033] In some embodiments, the distance between two adjacent horizontal scale lines is equal to the distance between two adjacent vertical scale lines, and the mounting hole is located at the center of a single grid formed by the horizontal and vertical scale lines. In this embodiment, the scale lines can form multiple square grids, and the mounting hole is located at the center of each square. This arrangement allows the mounting holes to also present a regular grid-like distribution, further reducing restrictions on the placement of the pipe fittings and enabling corresponding dimensional measurements to be performed on most positions of the pipe fittings on the table 41. Preferably, mounting holes can be made at intervals of one grid in both the horizontal and vertical directions, which reduces the number of holes and facilitates the processing and manufacturing of the worktable 40.

[0034] In some embodiments, the limiting fixture includes a mounting base 61 and a positioning plate 62. The positioning plate 62 is vertically connected to the mounting base 61. The mounting base 61 and the positioning plate 62 have straight, coplanar edges for abutting against the pipe fitting. The mounting base 61 has two parallel through slots 63, and the distance between the two through slots 63 is an integer multiple of the side length of a single grid. See also... Figure 2 In this embodiment, when the limiting fixture is installed on the worktable 40, the mounting base 61 can be parallel to and fit against the table surface 41 of the worktable 40. The mounting base 61 can have a straight edge, which can easily align with the scale line, thereby accurately obtaining the reading on the scale line according to the positional relationship between the straight edge and the scale line. The positioning plate 62 also has a straight edge. The straight edge of the positioning plate 62 is perpendicular to and coplanar with the straight edge of the mounting base 61, thereby forming an abutment surface. It can be understood that the side of the pipe is arc-shaped. Therefore, the straight edge of the positioning plate 62 can easily abut against the outermost part of the pipe in the radial direction, thereby obtaining the radial dimension of the pipe. In this embodiment, the mounting base 61 has two through slots 63 with a distance that is an integer multiple of the grid side length. Two bolts can pass through the two through slots 63 and enter the corresponding mounting holes to fix the mounting base 61. Before fixing the mounting base 61, the mounting base 61 can be adjusted in position along the extension direction of the through slots 63, so that the limiting fixture can be finely adjusted to adapt to different pipe sizes. In some embodiments, the positioning plate 62 may have a gripping hole to facilitate the removal and handling of the limiting fixture.

[0035] Please see Figure 5 In some embodiments, the distance between two adjacent horizontal scale lines and the distance between two adjacent vertical scale lines are both 10cm; nine first centimeter scale lines perpendicular to the vertical scale lines are equidistantly arranged on the vertical scale lines between two adjacent horizontal scale lines, and the first centimeter scale lines adjacent to the horizontal scale lines are 1cm away from the horizontal scale lines; nine second centimeter scale lines perpendicular to the horizontal scale lines are equidistantly arranged on the horizontal scale lines between two adjacent vertical scale lines, and the second centimeter scale lines adjacent to the vertical scale lines are 1cm away from the vertical scale lines. Figure 5 The numbers in the figure represent length values ​​in mm. In this embodiment, by setting a first centimeter scale line and a second centimeter scale line, the size range of the pipe fitting at the centimeter level can be conveniently and quickly determined. In some embodiments, a first half-centimeter scale line parallel to the two adjacent first centimeter scale lines is also set at the midpoint, and the length of the first centimeter scale line is less than that of the first centimeter scale line; a second half-centimeter scale line parallel to the two adjacent second centimeter scale lines is also set at the midpoint, and the length of the second centimeter scale line is less than that of the second centimeter scale line. In this embodiment, by setting the half-centimeter scale line, higher measurement accuracy can be achieved while ensuring practicality. At the same time, the difference in length between the centimeter scale line and the half-centimeter scale line allows for convenient scale reading. In this embodiment, the platform 41 can be made of metal, such as stainless steel or other alloys. The centimeter scale line and the half-centimeter scale line can be set on the platform 41 by engraving, thereby increasing the service life of the scale line and preventing the scale line from being worn.

[0036] Please combine Figure 3 and Figure 4 In some embodiments, the worktable 40 further includes a base 42, and the table surface 41 is adjustablely connected to the base 42. The table surface 41 includes a horizontal support plate 411 and two vertical mounting plates 412. The support plate 411 is rectangular, with scale lines set on it. The two mounting plates 412 are respectively vertically connected to the support plate 411 and located below a set of opposite edges of the support plate 411. Both mounting plates 412 are slidably connected to the base 42. In this embodiment, the position between the table surface 41 and the base 42 is adjustable, which allows the height of the table surface 41 to be lowered when measuring pipe dimensions, thereby facilitating the handling and measurement of pipes. It also facilitates the alignment of pipe ends of different sizes and shapes with the beveling tool 30, making beveling easier. In this embodiment, the two mounting plates 412 can ensure a more stable connection between the platform 41 and the base 42, preventing the platform 41 from tilting. Specifically, the mounting plates 412 can be slidably connected to the base 42 through a sliding groove and slide rail mechanism.

[0037] In some embodiments, the pipe beveling machine further includes at least two rectangular vernier limiting plates. These vernier limiting plates are slidably disposed on the edge of the support plate 411. The plane of the vernier limiting plate is perpendicular to the plane of the support plate 411. The edge of the support plate 411 is correspondingly provided with transverse and longitudinal scale lines, and the bottom edge of the vernier limiting plate is located on either the transverse or longitudinal scale line. In this embodiment, by setting vernier limiting plates, the end of the pipe fitting can be placed on the edge of the table 41, and the pipe fitting can be positioned by at least two vernier limiting plates abutting against the end of the pipe fitting, thereby obtaining the pipe fitting's dimensional information. This makes operation more convenient. The vernier limiting plates are applicable to the measurement of relevant dimensions of bent pipes or branch pipes. Specifically, the vernier limiting plate may include a slide and a locking plate. The slide may be "L" shaped. The locking plate is connected to the vertical side of the slide. The bottom edge of the locking plate is spaced apart from the horizontal side of the slide. The bottom edge of the locking plate and the slide form a "U" shaped notch, which is then locked onto the edge of the table 41 to achieve a sliding connection with the edge of the support plate 411. A screw hole may be opened on the horizontal side of the slide, so that the vernier limiting plate can be temporarily fixed by screwing in a bolt to abut against the lower edge of the support plate 411.

[0038] In some embodiments, the pipe beveling machine further includes two lead screw mechanisms and a servo motor 43. The table 41 and the base 42 are connected by the two lead screw mechanisms, and the servo motor 43 is driven by the lead screw mechanisms to adjust the distance between the table 41 and the base 42. To accommodate the outer diameter requirements of different pipe products, the table 41 can be adjusted up and down by a large distance using a CNC encoder, with a stroke of 0-320mm. In this embodiment, the distance between the table 41 and the base 42 is adjusted by the servo motor 43 and the lead screw mechanisms, enabling precise adjustment of the table 41's height through the CNC system. The two lead screw mechanisms can be set on a centerline of the support plate 411, and the line connecting the two lead screw mechanisms can be parallel to the extension direction of the mounting plate 412, thereby providing more balanced support for the table 41 and preventing the table 41 from tilting.

[0039] In some embodiments, the pipe beveling machine further includes a clamping mechanism 50, which is disposed between the worktable 40 and the beveling cutter 30. The clamping mechanism 50 is used to fix the pipe during the beveling process. The clamping mechanism 50 includes two columns 51, an upper clamping plate 52, a lower clamping plate 53, a drive cylinder 54, and a position fine-tuning plate 55. The two columns 51 are arranged parallel and spaced apart on the base frame 10. Each of the two columns 51 has a sliding groove, which is arranged opposite to each other. The two ends of the upper clamping plate 52 and the lower clamping plate 53 are slidably disposed in the two sliding grooves. The upper clamping plate 52 has a first semi-circular notch on the side facing the lower clamping plate 53, and the lower clamping plate 53 has a second semi-circular notch on the side facing the upper clamping plate 52. The first and second semi-circular notches have equal radii. The cylinder body of the drive cylinder 54 is fixedly connected to the column 51, and the piston rod of the drive cylinder 54 is connected to the upper clamping plate 52. The position fine-tuning plate 55 is located between the two columns 51 and is coplanar with the lower clamping plate 53. The position fine-tuning plate 55 is located below the lower clamping plate 53 and abuts against it. The bottom edge of the lower clamping plate 53 is a bevel, and the top edge of the position fine-tuning plate 55 has the same inclination angle as the bottom edge of the lower clamping plate 53. The position fine-tuning plate 55 is connected to the column 51 by a screw. The width of the position fine-tuning plate 55 is less than the distance between the two columns 51. Rotation of the screw allows the position fine-tuning plate 55 to move horizontally in the plane where the position fine-tuning plate 55 is located. In this embodiment, the clamping mechanism 50 can fix the pipe fitting when performing beveling. The two columns 51 can serve as the mounting base for other components of the clamping mechanism 50, and the columns 51 can be fixedly connected to the base frame 10. The upper clamping plate 52 and the lower clamping plate 53 can slide in the mounting groove. The upper clamping plate 52 can slide in the mounting groove under the action of the driving cylinder 54, thereby achieving clamping and releasing of the pipe fitting. The lower clamping plate 53 can slide in the mounting groove under the action of the position fine-tuning plate 55, thereby adapting to pipe fittings of different sizes. Specifically, when screwing in or out the screw, the position of the position fine-tuning plate 55 between the two columns 51 changes, resulting in horizontal translation. The top edge of the position fine-tuning plate 55 slides relative to the bottom edge of the lower clamping plate 53. Since the dual surfaces of the two are inclined, this causes the lower clamping plate 53 to slide in the height direction, thereby achieving height adjustment of the lower clamping plate 53. In this embodiment, the position fine-tuning plate 55 can be a right trapezoid. A crossbeam can be fixedly installed between the two columns 51, and the driving cylinder 54 is installed on the crossbeam, with the cylinder body fixedly connected to the crossbeam.

[0040] In some embodiments, the clamping mechanism 50 further includes a plurality of upper semi-annular adjusting members and a plurality of lower semi-annular adjusting members, each with a size corresponding to one of the upper semi-annular adjusting members. The radii of the plurality of upper semi-annular adjusting members decrease sequentially, with the outer diameter of the smaller upper semi-annular adjusting member equal to the inner diameter of the previous upper semi-annular adjusting member, and the outer diameter of the largest upper semi-annular adjusting member equal to the radius of the first semi-circular notch. Two adjacent upper semi-annular adjusting members and the largest upper semi-annular adjusting member are connected by a connecting plate to the upper clamping plate 52. Similarly, the radii of the plurality of lower semi-annular adjusting members decrease sequentially, with the outer diameter of the smaller lower semi-annular adjusting member equal to the inner diameter of the next lower semi-annular adjusting member, and the outer diameter of the largest lower semi-annular adjusting member equal to the radius of the second semi-circular notch. Two adjacent lower semi-annular adjusting members and the largest lower semi-annular adjusting member are connected by a connecting plate to the lower clamping plate 53. In this embodiment, by providing upper and lower semi-annular adjusting members, the clamping mechanism 50 can more reliably clamp and fix pipe fittings of different radii.

[0041] In some embodiments, the pipe beveling machine further includes a pointer and a scale. The pointer is located on the edge of the table 41 adjacent to the clamping mechanism 50, and the scale is vertically mounted on the column 51. The projection of the pointer onto the plane of the scale is located on the scale. In this embodiment, by setting the pointer and scale, the height of the table 41 can be adjusted more intuitively and accurately, facilitating repeated beveling using the same parameters.

[0042] Based on the various embodiments of this application described above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0043] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A pipe beveling machine, characterized in that, include: Base frame; The drive unit is mounted on the base frame; A beveling tool is connected to the driving device, which can drive the beveling tool to rotate in order to perform beveling on the pipe fitting. A worktable is disposed on one side of the beveling tool. The worktable includes a horizontally arranged table surface. When beveling the pipe fitting, the table surface is used to support the pipe fitting. The table surface is provided with scale lines. Multiple limiting fixtures are used to limit the pipe fittings during measurement. The table surface is also provided with multiple mounting holes for installing the limiting fixtures.

2. The pipe beveling machine according to claim 1, characterized in that, The scale lines include multiple parallel and equally spaced horizontal scale lines and multiple parallel and equally spaced vertical scale lines. The horizontal and vertical scale lines are set perpendicularly to each other, and the multiple horizontal and vertical scale lines are distributed in a grid pattern.

3. The pipe beveling machine according to claim 2, characterized in that, The distance between two adjacent horizontal scale lines is equal to the distance between two adjacent vertical scale lines, and the mounting hole is located at the center of a single grid formed by the horizontal and vertical scale lines. The limiting fixture includes a mounting base and a positioning plate. The positioning plate is vertically connected to the mounting base. The mounting base and the positioning plate have straight, coplanar edges for abutting against the pipe fitting. The mounting base has two parallel through slots, and the distance between the two through slots is an integer multiple of the side length of a single grid.

4. The pipe beveling machine according to claim 3, characterized in that, The distance between two adjacent horizontal scale lines and the distance between two adjacent vertical scale lines are both 10cm; Nine first centimeter scale lines perpendicular to the vertical scale lines are equidistantly arranged on the vertical scale lines between two adjacent horizontal scale lines. The first centimeter scale lines adjacent to the horizontal scale lines are 1 cm away from the horizontal scale lines. Nine second centimeter scale lines perpendicular to the horizontal scale lines are equidistantly arranged on the horizontal scale lines between two adjacent vertical scale lines. The second centimeter scale lines adjacent to the vertical scale lines are 1 cm away from the vertical scale lines.

5. The pipe beveling machine according to claim 4, characterized in that, A first half-centimeter scale line parallel to the two adjacent first centimeter scale lines is also set at the midpoint of the first centimeter scale line, and the length of the first centimeter scale line is less than that of the first centimeter scale line; A second half-centimeter scale line is set at the midpoint between two adjacent second centimeter scale lines, and the length of the second centimeter scale line is less than that of the second centimeter scale line.

6. The pipe beveling machine according to claim 1, characterized in that, The workbench also includes a base, and the distance between the workbench and the base is adjustable; The tabletop includes a horizontal support plate and two vertical mounting plates. The support plate is rectangular with scale lines set on it. The two mounting plates are perpendicularly connected to the support plate and located below a set of opposite edges of the support plate. Both mounting plates are slidably connected to the base.

7. The pipe beveling machine according to claim 2, characterized in that, It also includes at least two rectangular vernier limit plates, which are slidably disposed on the edge of the support plate. The plane of the vernier limit plate is perpendicular to the plane of the support plate. The edge of the support plate is provided with a horizontal scale line and a vertical scale line, and the bottom edge of the vernier limit plate is located on the horizontal scale line or the vertical scale line.

8. The pipe beveling machine according to claim 6, characterized in that, It also includes two lead screw mechanisms and a servo motor. The table and the base are connected by two lead screw mechanisms. The servo motor is connected to the lead screw mechanism for transmission. The servo motor is used to drive the lead screw mechanism to adjust the distance between the table and the base.

9. The pipe beveling machine according to claim 6, characterized in that, It also includes a clamping mechanism, which is set between the worktable and the beveling tool. The clamping mechanism is used to fix the pipe during the beveling process. The clamping mechanism includes two columns, an upper clamping plate, a lower clamping plate, a drive cylinder, and a position fine-tuning plate; Two columns are set parallel and spaced apart on the base frame, and each column has a sliding groove, which are arranged opposite to each other. The upper and lower plates are slidably set in two grooves at both ends. The upper plate has a first semi-circular notch on the side facing the lower plate, and the lower plate has a second semi-circular notch on the side facing the upper plate. The radii of the first and second semi-circular notches are equal. The cylinder body of the drive cylinder is fixedly connected to the column, and the piston rod of the drive cylinder is connected to the upper clamping plate. The position adjustment plate is located between the two columns and is coplanar with the lower plate. The position adjustment plate is positioned below the lower plate and abuts against it. The bottom edge of the lower plate is a sloping edge. The top edge of the position adjustment plate has the same inclination angle as the bottom edge of the lower plate. The position adjustment plate is connected to the columns by a screw. The width of the position adjustment plate is less than the distance between the two columns. Rotating the screw allows the position adjustment plate to move horizontally in the plane where the position adjustment plate is located.

10. The pipe beveling machine according to claim 9, characterized in that, It also includes a pointer and a scale. The pointer is set on the edge of the table adjacent to the clamping mechanism, and the scale is set vertically on the column. The projection of the pointer in the plane of the scale is located on the scale.

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