Drilling machine line laser-assisted centering apparatus and method

By using a laser-assisted centering device and method for drilling machines, and utilizing components such as laser marking lines, bases, magnets, and laser adjustment seats, the problem of low centering efficiency between ordinary bench drill bits and workpieces is solved, achieving efficient and precise workpiece centering.

WO2026130012A1PCT designated stage Publication Date: 2026-06-25BOHAI SHIPYARD GROUP CORP LTD

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
BOHAI SHIPYARD GROUP CORP LTD
Filing Date
2025-11-20
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

In the existing technology, ordinary bench drills are inefficient and difficult to guarantee accuracy when aligning the drill bit with the workpiece, especially during the clamping process, they are prone to eccentricity, which leads to a loss of accuracy.

Method used

A laser-assisted centering device for drilling machines is adopted. The laser marking guides the workpiece to center during the clamping process. The center point is confirmed by the base, magnet, laser adjustment seat and laser emitter. The centering accuracy and efficiency are improved by combining the laser position adjustment auxiliary template.

Benefits of technology

It achieves efficient centering during workpiece drilling, improves construction efficiency and quality, and ensures drilling accuracy and consistency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN2025136284_25062026_PF_FP_ABST
    Figure CN2025136284_25062026_PF_FP_ABST
Patent Text Reader

Abstract

A drilling machine line laser-assisted centering apparatus and method. The line laser-assisted centering apparatus comprises a base (2), a magnet (3), a laser adjustment mount (4), a line laser emitter (5), and an auxiliary laser position adjustment template (6); the line laser emitter (5) is configured for projecting a line laser light source, wherein an intersection of linear laser lines serves to determine a center point; the base (2) comprises a shaft sleeve (21) and arms (22); the shaft sleeve (21) is sleeved on a drill chuck base flange mount of a drilling machine (1), one end of each arm (22) is connected to the shaft sleeve (21), and the other end is connected to the laser adjustment mount (4) and secures same; and each arm (22) is provided with a recess (221), wherein the magnet (3) is inserted into the recess (221) of each arm and configured for securing the base (2) on the drilling machine by means of magnetic attachment. The auxiliary laser position adjustment template (6) comprises a template body bottom plate (611), a template body vertical plate (612), a template body bilateral shoulder (613), and a template body bottom positioning peg (614). Adjusting a respective position of a laser projection line of the line laser emitter allows the laser projection line to be projected onto a rear vertical plate (612) by means of a central slit of the auxiliary laser position adjustment template (6), so as to achieve workpiece centering. The drilling machine line laser-assisted alignment apparatus and method use laser line guidance to assist in workpiece centering during clamping processes, thereby improving overall construction efficiency and quality.
Need to check novelty before this filing date? Find Prior Art

Description

A laser-assisted centering device and method for a drilling machine with a single line alignment Technical Field

[0001] This invention relates to drilling in the field of machinery, and in particular to a laser-assisted centering device and method for a drilling machine with a single line. Background Technology

[0002] Shipbuilding involves complex construction processes, diverse piping systems, and challenging operating environments. Construction often involves the fabrication and drilling of numerous pipes of various diameters and materials, blind flanges, and tooling. Before drilling begins, the workpieces must be clamped and the drilling location aligned with the center point of the drilling machine.

[0003] However, in the process of implementing the inventive technical solution in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems:

[0004] Ordinary bench drills often require repeated clamping of workpieces to ensure that the drill bit is aligned. Overall alignment results in low work efficiency, and it is difficult to detect if there is misalignment during the clamping process, leading to a loss of accuracy. Summary of the Invention

[0005] To address the shortcomings of existing technologies and the problem of centering drill bits with workpieces in conventional bench drills, this application provides a laser-assisted centering device and method for drilling machines using a laser-guided alignment line. This method utilizes a laser-guided alignment device to assist in centering the workpiece during clamping, improving overall construction efficiency and quality, and resolving the technical problem of centering the workpiece during drilling.

[0006] The solution adopted by the embodiments of this application to solve the technical problem is:

[0007] A laser-assisted centering device for a drilling machine includes a base, a magnet, a laser adjustment seat, and a laser emitter.

[0008] A line laser emitter is used to emit a line laser source; the center point is determined after the straight laser lines intersect.

[0009] The laser adjustment base is used to house the line laser emitter. The laser adjustment base has a round hole, and the line laser emitter is clamped in the round hole. The inner diameter of the round hole is larger than the outer diameter of the line laser emitter. There are screws on all four sides of the laser adjustment base, and the posture of the line laser emitter is adjusted by the screws.

[0010] The base includes a bushing and a branch; the bushing is fitted onto the root flange seat of the drill chuck of the drilling machine, and the center diameter of the bushing corresponds to the outer diameter of the root flange seat of the drill chuck of the drilling machine; a branch is provided radially on the bushing, one end of the branch is connected to the bushing, and the other end is connected to and fixed to the laser adjustment seat; slots are provided on the branch for connecting and fixing the base to the drilling machine.

[0011] In a preferred embodiment, a magnet is inserted into a slot in the branch to magnetically attach the base to the drill press.

[0012] In a preferred embodiment, the base has two or more branches, including a three-branch base and a four-branch base; the included angles between the branches on the three-branch base are 105°, 105° and 150° respectively; the included angles between the branches on the four-branch base are 90° and evenly distributed.

[0013] In a preferred embodiment, the base adopts a split design, which requires the bushing to be cut in the middle, and then during installation, the two parts of the bushing are fastened to the flange seat at the root of the drill chuck of the drill press.

[0014] In a preferred embodiment, the base adopts an integrated design, requiring the drill bit fixing clamp of the drill press to be disassembled, and the bushing to be inserted into the flange seat at the root of the drill chuck of the drill press from the lower end.

[0015] In a preferred embodiment, the slot is a rectangular through hole.

[0016] In a preferred embodiment, the magnet is a rectangular block that matches the slot on the branch.

[0017] In a preferred embodiment, a laser-assisted centering device for a drilling machine further includes a laser position adjustment auxiliary template. The laser position adjustment auxiliary template includes a template body, a template split base, and a template split base magnetic block. The template split base is magnetically attached to the worktable of the drilling machine via the template split base magnetic block. The template body is assembled on the template split base. The template body has a template body narrow slit for the laser to pass through as a reference. The laser emitted by the line laser emitter, after the position is adjusted, can pass through the template body narrow slit without obstruction.

[0018] The template body adopts an integrated cuboid structure, including the template body base plate, the template body upright plate, the template body double protruding shoulders, and the template body bottom positioning column;

[0019] The template body base plate is a flat structure set at the bottom of the template body and is used as a reference plane.

[0020] The template body upright plate is set in the middle of the template body base plate and is perpendicular to the template body base plate. A template body upright plate groove is set in the middle of the template body upright plate. The template body upright plate groove is a vertical square groove. The vertical edge line of the template body upright plate groove is perpendicular to the plane of the template body base plate. The template body upright plate is the imaging surface of the final laser projection. The vertical laser line of the laser image on the template body upright plate should be parallel to or completely coincide with the vertical edge line of the template body upright plate groove.

[0021] The template body has two protruding shoulders on one end of the template body base plate, forming a triangular structure; a narrow slit of the template body is set in the middle of the two protruding shoulders on both sides of the template body, and the two opposite surfaces of the two protruding shoulders on both sides of the template body are parallel to each other and perpendicular to the plane of the template body base plate.

[0022] The bottom positioning post of the template body is set at the bottom of the template body base plate and is used to position the template body.

[0023] The overall appearance of the template split base is circular. The center of the template split base has a central through hole for assembling the bottom positioning post of the template body and the centering of the drill bit of the drilling machine. Centered on the central through hole of the template split base, there are circular arrays of template split base magnetic block mounting grooves for mounting template split base magnetic blocks.

[0024] The template split base magnetic block is a round magnet, which is embedded in the template split base magnetic block mounting groove to prevent the template split base from shaking.

[0025] To further address the technical problems to be solved in the embodiments of this application, the embodiments of this application provide a laser-assisted alignment method for a drilling machine, which includes the following steps:

[0026] Step 1: Design the base 2 according to the specific dimensions of the drilling machine 1 and install it on the drilling machine 1;

[0027] Step 2: Install the laser adjustment base 4 onto the base 2. The laser adjustment base 4 can be installed by welding or by bonding with structural adhesive.

[0028] Step 3: Install and secure the linear laser emitter 5;

[0029] Step 4: Adjust the position of the laser projection line of each linear laser emitter 5 to ensure that the laser projection line passes through the center point of the drilling machine 1 platform and that the plane containing the laser projection line is perpendicular to the drilling machine 1 platform; the centering process is complete.

[0030] Furthermore, in step four, the laser position adjustment auxiliary template 6 is applied. The laser projection line of the line laser emitter 5 is projected onto the groove of the template body upright plate of the template body in the middle of the laser position adjustment auxiliary template 6 through the narrow gap 6131 of the template body. If the laser is blocked during the process of passing through the narrow gap, it means that the line laser emitter 5 is not installed correctly and needs to be adjusted until it passes through the narrow gap 6131 of the template body without any obstruction.

[0031] Furthermore, in step four, the laser position adjustment auxiliary template 6 is adapted to the base 2 with an equal number of template bodies narrow slits 6131. ​​Throughout the adjustment process, there is no need to move repeatedly. The single-slit laser position adjustment auxiliary template 6 is used to rotate the laser position adjustment auxiliary template 6 when each line laser emitter 5 needs to be adjusted.

[0032] Positive effects: One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0033] 1. Because the embodiments of this application adopt the technical means of setting a laser adjustment seat on the branch of the base, the linear laser emitter can be embedded in the laser adjustment seat and the posture can be adjusted, which effectively solves the technical problem of workpiece centering in the prior art, and thus realizes the technical effect of confirming the center point after the intersection of the linear laser lines and realizing workpiece centering.

[0034] 2. Since the embodiments of this application adopt the technical means of providing slots on the branches, the base can be magnetically attracted to the drilling machine by inserting magnets in the slots, which effectively solves the technical problem of workpiece alignment in the prior art, and thus achieves the technical effect of easy clamping and improved work efficiency.

[0035] 3. Because the embodiments of this application adopt the technical means of setting a laser position adjustment auxiliary template on the drilling platform, when the bottom surface of the laser position adjustment auxiliary template coincides with the plane of the drilling platform, and the center point of the laser position adjustment auxiliary template coincides with the center point of the drilling platform, it is guaranteed that the laser projection of the line laser emitter can pass through the narrow slit of the template body of the laser position adjustment auxiliary template. This indicates that the projection line of the laser emitter passes perpendicularly through the center point position on the drilling platform, and the plane where the laser projection line of the line laser emitter is located is perpendicular to the drilling platform. This effectively solves the technical problem of workpiece alignment in the prior art, and thus achieves the technical effect of workpiece alignment.

[0036] It is suitable for use as a laser-assisted centering device and method for drilling machines. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 is a schematic diagram of the structure of this embodiment;

[0039] Figure 2 is a partial enlarged view of Embodiment I of this invention;

[0040] Figure 3 is a schematic diagram of the three-branch base structure;

[0041] Figure 4 is a schematic diagram of the four-branch base structure;

[0042] Figure 5 is a schematic diagram of the laser indicator line in this embodiment;

[0043] Figure 6 is a schematic diagram of the installation of the laser position adjustment auxiliary template;

[0044] Figure 7 is a schematic diagram of the installation of the sample split base;

[0045] Figure 8 is a three-dimensional view of the laser position adjustment auxiliary template;

[0046] Figure 9 shows the main view of the laser position adjustment auxiliary template;

[0047] Figure 10 shows the AA view;

[0048] Figure 11 is a side view of the laser position adjustment auxiliary template;

[0049] Figure 12 is an attached view of the laser position adjustment auxiliary template;

[0050] Figure 13 is an isometric view of the northwest side of the template body;

[0051] Figure 14 is an isometric view of the southeast side of the template body;

[0052] Figure 15 is a schematic diagram of the sample split base.

[0053] In the picture:

[0054] 1. Drilling machine;

[0055] 2. Base

[0056] 21. Bushing,

[0057] 22. Branch,

[0058] 221. Slot;

[0059] 3. Magnet;

[0060] 4. Laser adjustment base;

[0061] 5. Linear laser emitter,

[0062] 6. Laser position adjustment auxiliary template,

[0063] 61. Template body,

[0064] 611. Sample body base plate,

[0065] 612. Template body upright panel,

[0066] 6121. Groove on the upright plate of the template body.

[0067] 613. The template body has protruding shoulders on both sides.

[0068] 6131. ​​Narrow seam in the template body.

[0069] 614. Positioning post at the bottom of the template body.

[0070] 62. Sample split base,

[0071] 621. The center through hole of the sample split base.

[0072] 622. Template split base magnetic block mounting groove,

[0073] 63. Template split base magnetic block. Detailed Implementation

[0074] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0075] As shown in the figure, a laser-assisted centering device for a drilling machine includes a base 2, a magnet 3, a laser adjustment seat 4, and a laser emitter 5.

[0076] The linear laser emitter 5 is used to emit linear laser light sources. The center point is determined after the linear laser lines intersect. In this embodiment, the linear laser emitted by the linear laser emitter 5 is projected, and multiple linear lasers intersect at the center point. Since the linear laser is projected from above, each linear laser is a planar projection. Therefore, it is not limited by the height or size of the workpiece. In particular, tubes and flat workpieces can meet the requirements. Except if the center point of the workpiece is concave or blocked on all sides, preventing the laser from being projected to the center, the center point of the laser projection still intersects at the highest point after the height of the workpiece on the platform changes. Therefore, the center point can be successfully projected in general.

[0077] The laser adjustment base 4 is used to accommodate the line laser emitter 5. A circular hole is provided on the laser adjustment base 4, and the line laser emitter 5 is clamped in the circular hole. The inner diameter of the circular hole is larger than the outer diameter of the line laser emitter 5. Screws are provided around the sides of the laser adjustment base 4. The screws can not only fix the line laser emitter 5, but also flexibly adjust the position and angle of the line laser emitter 5. If necessary, the line laser emitter 5 needs to be projected in an inclined state. In this embodiment, the laser adjustment base 4 is a square block with a circular hole.

[0078] The base 2 includes a bushing 21 and a branch 22. The bushing 21 is fitted onto the root flange seat of the drill chuck of the drill press 1. The center diameter of the bushing 21 corresponds to the outer diameter of the root flange seat of the drill chuck, ensuring that the base 2 and the root flange seat of the drill chuck can fit precisely, reducing errors caused by unevenness of the base 2. A branch 22 is provided radially on the bushing 21. The branch 22 is in the shape of a long rod. One end of the branch 22 is connected to the bushing 21, and the other end is connected to and fixed to the laser adjustment seat 4.

[0079] A slot 221 is provided on the branch 22 for connecting and fixing the base 2 and the drill 1; in this embodiment, to ensure reliability, structural adhesive can also be used for bonding or holes can be drilled directly on the drill 1 and bolts can be used to connect and fix the base 2 and the drill 1.

[0080] Magnet 3 is inserted into slot 221 of branch 22 to magnetically attach base 2 to drill 1.

[0081] To ensure the stability of the structure in this embodiment, the base 2 has two or more branches 22, including a three-branch base and a four-branch base. Since this device uses the method of confirming the center point after the intersection of straight laser lines, the base 2 must have two or more branches. In practice, as long as there are more than two branches, the usage requirements can be met. Of course, the more branches there are, the more straight laser emitters can be installed, and the more straight lines are emitted, the higher the relative accuracy.

[0082] To further ensure the stability of the structure in this embodiment, the included angles between the branches 22 on the three-branch base are 105°, 105° and 150° respectively; the included angles between the branches 22 on the four-branch base are 90° and evenly distributed. The design and distribution of the branches 22 on the base 2 should be carefully considered during installation to avoid interfering with the operation handle of the drilling machine 1.

[0083] To optimize the structure of this embodiment, the base 2 adopts a split design. It is only necessary to cut the bushing 21 in the middle, and then during installation, the two parts of the bushing 21 are fastened to the root flange seat of the drill chuck of the drill press.

[0084] To further optimize the structure of this embodiment, the base 2 adopts an integrated design for easy installation. If an integrated design is adopted, the drill bit fixing clamp of the drill press needs to be disassembled before the base 2 is installed from the bottom.

[0085] To further optimize the structure of this embodiment, the slot 221 is a rectangular through hole.

[0086] As a standard technical choice, magnet 3 is a rectangular block that matches the slot 221 on branch 22.

[0087] Preferably, a laser-assisted centering device for a drilling machine with a straight line also includes a laser position adjustment auxiliary template 6. The laser position adjustment auxiliary template 6 includes a template body 61, a template split base 62, and a template split base magnet 63. The template split base 62 is magnetically attached to the worktable of the drilling machine 1 by the template split base magnet 63. The template body 61 is assembled on the template split base 62. The template body 61 has a template body slit 6131 for the laser to pass through as a reference. The laser emitted by the straight line laser emitter 5, after the position is adjusted, can pass through the template body slit 6131 without obstruction.

[0088] The template body 61 adopts an integrated cuboid structure, including the template body base plate 611, the template body upright plate 612, the template body double-sided protruding shoulders 613, and the template body bottom positioning column 614.

[0089] The template body base plate 611 is set at the bottom of the template body 61 and has a flat structure, which is used as a reference plane;

[0090] The template body upright plate 612 is located on the upper middle part of the template body base plate 611 and is perpendicular to the template body base plate 611. A template body upright plate groove 6121 is provided in the middle of the template body upright plate 612. The template body upright plate groove 6121 is a vertical square groove, and the vertical edge line of the template body upright plate groove 6121 is perpendicular to the plane of the template body base plate 611. The template body upright plate 612 is the imaging surface of the final laser projection. The vertical laser line of the laser image on the template body upright plate 612 should be parallel to or completely coincide with the vertical edge line of the template body upright plate groove 6121.

[0091] The template body has two protruding shoulders 613 on one end of the template body base plate 611, forming a triangular structure. A template body narrow slit 6131 is provided in the middle of the template body two protruding shoulders 613. The two opposite surfaces of the template body two protruding shoulders 613 are parallel to each other and perpendicular to the plane of the template body base plate 611. The template body narrow slit 6131 is used as a reference for laser passage. The laser can pass through the template body narrow slit 6131 without obstruction when the laser is properly adjusted. If the laser is obstructed during the process of passing through the narrow slit, it means that the laser is not installed correctly and needs to be adjusted until it can pass through the template body narrow slit 6131 without obstruction.

[0092] The bottom positioning post 614 of the template body is set at the bottom of the template body base plate 611 to position the template body 61. Specifically, it is connected and cooperates with the template split base 612. The template split base 612 is in contact with the drilling platform surface. The template split base 612 has a vertical center hole in the center and the center hole coincides with the working center of the drill bit to ensure that it is located in the center of the drilling machine.

[0093] The template split base 62 has a circular overall appearance. At its center is a central through-hole 621 for assembling the bottom positioning post 614 of the template body 61 and the centering of the drill bit of the drilling machine 1. Specifically, the size of the central through-hole 621 is the same as the size of the bottom positioning post of the template body. The upper surface of the central through-hole 621 has an arc-shaped chamfer, which facilitates the insertion of the drill bit into the central through-hole 621 for centering. The drill bit is selected with an outer diameter matching the diameter of the central through-hole 621. Centered on the central through-hole 621, a circular array of template split base magnetic block mounting grooves 622 is arranged for mounting the template split base. The template split base 62 has six template split base magnetic block mounting grooves 622 at its bottom for mounting the template split base magnetic blocks 63. The template split base magnetic blocks 63 are directly fixed to the template split base magnetic block mounting grooves 622 with strong adhesive. The thickness of the template split base magnetic blocks 63 is consistent with the depth of the template split base magnetic block mounting grooves 622 to ensure that the template split base magnetic blocks 63 are completely embedded in the template split base magnetic block mounting grooves 622. After installation, the exposed surface of the template split base magnetic blocks 63 coincides with the bottom plane of the template split base 62 and should not protrude. This avoids affecting the fit between the template split base 62 and the drilling machine working platform due to uneven installation of the template split base magnetic blocks 63, thereby affecting the overall levelness of the template.

[0094] The template split base magnetic block 63 is a round magnet, which is embedded in the template split base magnetic block mounting groove 622. The template split base magnetic block 63 can maintain sufficient magnetic attraction to prevent the template split base 62 from shaking.

[0095] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0096] Since a laser adjustment seat 4 is provided on the branch 22 of the base 2, the linear laser emitter 5 can be embedded in the laser adjustment seat 4 and its posture can be adjusted so that the center point is confirmed after the linear laser lines intersect, thus achieving workpiece centering.

[0097] Since the branch 22 has a slot 221, the magnet 3 inserted into the slot 221 can magnetically attract the base 2 to the drill press 1, which is convenient for clamping and improves work efficiency.

[0098] Since a laser position adjustment auxiliary template 6 is set on the drilling machine 1 platform, when the bottom surface of the laser position adjustment auxiliary template 6 coincides with the plane of the drilling machine 1 platform, and the center point of the laser position adjustment auxiliary template 6 coincides with the center point of the drilling machine 1, it ensures that the laser projection of the line laser emitter 5 can pass through the narrow slit 6131 of the template body of the laser position adjustment auxiliary template 6. This indicates that the projection line of the line laser emitter 5 passes perpendicularly through the center point position on the drilling machine 1 platform, and the plane where the laser projection line of the line laser emitter 5 is located is perpendicular to the drilling machine 1 platform.

[0099] Since the template split base 62 is magnetically attracted to the worktable of the drilling machine 1 by the template split base magnet 63, and the template body 61 is assembled on the template split base 62, the magnetic attraction of the template split base magnet 63 makes the template split base 62 firmly attached to the worktable of the drilling machine 1. The center line of the center hole of the template split base 62 coincides with the center line of the drill bit of the drilling machine 1. The template body 61 and the template split base 62 rotate relative to each other around the positioning post 614 at the bottom of the template body. During the laser adjustment process... Rotate the template 61 and observe the laser image on the template body 612. The laser image is completely vertical and does not interfere with the narrow slit 6131 of the template body on both sides of the protruding shoulder 613, which is the required adjustment. Then, the center point of the laser position adjustment auxiliary template 6 coincides with the center point of the drilling machine 1, ensuring that the laser projection can pass through the vertical slit of the laser position adjustment auxiliary template 6. This shows that the laser emitter projection line passes vertically through the center point position on the drilling machine platform and the plane where the laser projection line is located is perpendicular to the drilling machine platform 1.

[0100] A laser-assisted alignment method for a drilling machine includes the following steps:

[0101] Step 1: Design the base 2 according to the specific dimensions of the drilling machine 1 and install it on the drilling machine 1;

[0102] Step 2: Install the laser adjustment base 4 onto the base 2. The laser adjustment base 4 and the base 2 are directly connected by welding or structural adhesive. Since the subsequent adjustment accuracy is mainly controlled by the projection lines of the line laser emitter 5, the laser adjustment base 4 does not have special precision requirements and can be installed normally. The laser adjustment base 4 is square on the outside and round on the inside. The inner diameter of the laser adjustment base 4 is larger than the outer diameter of the line laser emitter 5. There are screw holes on all four sides of the laser adjustment base 4. The screw holes can not only fix the line laser emitter 5, but also flexibly adjust the position and angle of the line laser emitter 5. If necessary, the line laser emitter 5 needs to be tilted for projection.

[0103] Step 3: Install and fix the line laser emitter 5. A standard line laser emitter can be used. The light source can be red, blue, or green. The specific selection can be adjusted according to the working environment and tool color. The line laser emitter 5 is powered by a battery. It is not recommended to use a direct wire connection. Replace the battery or charge it periodically.

[0104] Step four: Adjust the position of the laser projection line of each linear laser emitter 5 to ensure that the laser projection line passes through the center point of the drilling machine platform 1 and that the plane containing the laser projection line is perpendicular to the drilling machine platform. To complete the adjustment of the laser emitter projection line position, multi-plane adjustment and calibration are required because the plane containing the center point of the workpiece is changing, so the adjustment of the laser emitter position directly affects the working accuracy. Taking the laser emission of three linear laser emitters 5 as an example, a laser position adjustment auxiliary template 6 is designed. The linear laser emitters 5 are placed on the platform plane, and the bottom surface of the laser position adjustment auxiliary template 6 coincides with the platform plane of the drilling machine 1. The center point of the laser position adjustment auxiliary template 6 coincides with the center point of the drilling machine 1, ensuring that the laser projection can pass through the vertical seam of the laser position adjustment auxiliary template 6. This indicates that the projection line of the laser emitter passes perpendicularly through the center point of the drilling machine platform, and the plane where the laser projection line is located is perpendicular to the drilling machine 1 platform. The laser position adjustment auxiliary template can be made into a matching special template according to the base structure. That is, the base 2 has several branch templates and several projection seams, and the center line of the seam coincides with the center line of the template. Alternatively, a universal template for the seams can be designed, but each time each laser emitter is adjusted, the template needs to be rotated so that the laser passes through the template seam and projects onto the vertical plate behind the template. The vertical plate behind the laser position adjustment auxiliary template 6 can be engraved with vertical parallel lines for easy reference to see if the laser projection line is skewed.

[0105] It is worth noting that all the contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of the drill 1, magnet 3 and linear laser emitter 5 are not specifically limited and can be determined using conventional equipment. Electrical control components not mentioned in this technical solution are not shown in the figure because they are existing technologies, and will not be described here.

[0106] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A kind of drill bed linear laser auxiliary centering device, it is characterized by: Including base (2), magnet (3), laser adjusting seat (4) and linear laser emitter (5); Linear laser emitter (5) is used to emit linear laser light source, the intersection of straight laser line confirms center point; Laser adjusting seat (4) is used to contain linear laser emitter 5, there is round hole on laser adjusting seat (4), linear laser emitter (5) is clamped on the round hole, the inner diameter of its round hole is greater than the outer diameter of linear laser emitter 5, there are screws on the four sides of laser adjusting seat (4), the attitude of linear laser emitter (5) is adjusted by screw; Base (2) includes shaft sleeve (21) and branch (22);Shaft sleeve (21) is sleeved on the drill chuck root flange seat of drill bed (1), the center hole diameter of shaft sleeve (21) corresponds with the outer diameter of drill bed drill chuck root flange seat;Radial branch (22) is provided on shaft sleeve (21), one end of branch (22) is connected to shaft sleeve (21), and the other end is connected with laser adjusting seat (4) and is fixed;Slot (221) is provided on branch (22) for the connection and fixation of base (2) and drill bed (1); Magnet (3) is inserted into the slot (221) of branch (22), and is used to magnetically attract base (2) on drill bed (1) to be fixed.

2. The drill bed linear laser auxiliary centering device according to claim 1, wherein: The base (2) has two or more branches (22), including a three-branch base and a four-branch base; The included angles between the branches (22) on the three-branch base are 105°, 105° and 150° in sequence, and the included angles between the branches (22) on the four-branch base are 90°.

3. The drill bed linear laser auxiliary centering device according to claim 2, wherein: The base (2) is designed in a split type, the shaft sleeve (21) is cut in half, and then the two parts of the shaft sleeve (21) are buckled to the drill chuck root flange seat of the drill bed.

4. The drill bed linear laser auxiliary centering device according to claim 2, wherein: The base (2) is designed in an integrated type, the drill chuck is disassembled, and then the shaft sleeve (21) is sleeved on the drill chuck root flange seat of the drill bed from the lower end.

5. The drill bed linear laser auxiliary centering device according to claim 2, wherein: The slot (221) is a rectangular through hole.

6. The drill bed linear laser auxiliary centering device according to claim 5, wherein: The magnet (3) is a rectangular block matched with the slot (221) on the branch (22).

7. The drill bed linear laser auxiliary centering device according to claim 6, wherein: The drill bed linear laser auxiliary centering device further comprises a laser position adjustment auxiliary template (6), and the laser position adjustment auxiliary template (6) comprises a template body (61), a template split base (62) and a template split base magnetic block (63). ​ ​ ​ The template split base (62) is magnetically attached to the worktable of the drilling machine (1) by the template split base magnet (63). The template body (61) is assembled on the template split base (62). The template body (61) has a template body slit (6131) for laser to pass through the reference. The laser emitted by the line laser emitter 5, which is adjusted in position, can pass through the template body slit (6131) without obstruction.

8. A laser-assisted centering device for a drilling machine according to claim 7, characterized in that: The template body (61) adopts an integrated cuboid structure, including a template body base plate (611), a template body upright plate (612), template body double side shoulders (613), and a template body bottom positioning column (614). The template body base plate (611) is set at the bottom of the template body (61) and has a planar structure, which is used as a reference plane; The template body upright plate (612) is set in the middle of the template body base plate (611) and is perpendicular to the template body base plate (611). A template body upright plate groove (6121) is provided in the middle of the template body upright plate (612). The template body upright plate groove (6121) is a vertical square groove. The vertical edge line of the template body upright plate groove (6121) is perpendicular to the plane of the template body base plate (611). The template body upright plate (612) is the imaging surface of the final laser projection. The vertical laser line of the laser image on the template body upright plate (612) should be parallel to or completely coincide with the vertical edge line of the template body upright plate groove (6121). The template body has two protruding shoulders (613) on one end of the template body base plate (611) and has a triangular structure. A template body narrow slit (6131) is provided in the middle of the template body two protruding shoulders (613). The two opposite surfaces of the template body two protruding shoulders (613) are parallel to each other and perpendicular to the plane of the template body base plate (611). The bottom positioning post (614) of the template body is set at the bottom of the template body base plate (611) and is used to position the template body (61). The template split base (62) has a circular overall appearance. The template split base has a central through hole (621) at the center, which is used to assemble the template body (614) bottom positioning post and the drill bit centering of the drilling machine (1). With the central through hole (621) of the template split base as the center, there are template split base magnetic block mounting grooves (622) arranged in a ring for mounting template split base magnetic blocks (63). The template split base magnetic block (63) is a round magnet, which is embedded in the template split base magnetic block mounting groove (622) to prevent the template split base (62) from shaking.

9. A laser-assisted alignment method for a drilling machine with a single line, characterized in that: The apparatus according to any one of claims 1-8 comprises the following steps: Step 1: Design the base (2) according to the specific dimensions of the drilling machine (1) and install it on the drilling machine (1); Step 2: Install the laser adjustment base (4) onto the base (2). The laser adjustment base (4) can be welded or bonded with structural adhesive. Step 3: Install and fix the line laser emitter (5); Step 4: Adjust the position of the laser projection line of each line laser emitter (5) to ensure that the laser projection line passes through the center point of the drilling machine (1) platform and that the plane of the laser projection line is perpendicular to the drilling machine (1) platform; the centering process is complete.

10. A laser-assisted alignment method for a drilling machine according to claim 9, characterized in that: In step four, the laser position adjustment auxiliary template (6) is applied. The laser projection line of the line laser emitter (5) is projected onto the groove of the template body upright plate of the template body through the narrow slit (6131) in the middle of the laser position adjustment auxiliary template (6). If the laser is blocked during the process of passing through the narrow slit, it means that the line laser emitter (5) is not installed correctly and needs to be adjusted until it passes through the narrow slit (6131) of the template body without any obstruction. In step four, the laser position adjustment auxiliary template (6) is adapted to the base (2) with the same number of template body narrow slits (6131). It does not need to be moved repeatedly during the entire adjustment process. The single-slit laser position adjustment auxiliary template (6) is used to rotate the laser position adjustment auxiliary template (6) when each line laser emitter (5) needs to be adjusted.