Linear laser-assisted centering device and method for drilling machine

Abstract

The invention provides a linear laser-assisted centering device and method for a drilling machine. The linear laser-assisted centering device comprises a base, a magnet, a laser adjusting seat and a linear laser transmitter. The laser adjusting seat is used for accommodating the linear laser transmitter, and screws are arranged on the periphery of the side surface of the laser adjusting seat to adjust the posture of the linear laser transmitter; the base comprises a shaft sleeve and branches; the shaft sleeve is sleeved on a drill clamp root flange seat of a drilling machine, and the central aperture of the shaft sleeve corresponds to the excircle diameter of the drill clamp root flange seat of the drilling machine; one end of the branch is connected to the shaft sleeve, and the other end of the branch is connected with the laser adjusting seat and fixes the laser adjusting seat; slotted holes are formed in the branches and used for connecting and fixing the base and a drilling machine; the magnets are inserted into the slotted holes of the branches and used for magnetically attracting the base to a drilling machine to be fixed. The positions of laser projection lines of the linear laser emitters are adjusted respectively, the laser projection lines are projected to a rear vertical plate through a middle gap of the laser position adjusting auxiliary sample plate, and workpiece centering is achieved.

Description

Technical Field

[0001] The invention relates to drilling in the mechanical field, and in particular to a laser-assisted centering device and method for a drilling machine. Background Art

[0002] The shipbuilding industry is complex in terms of construction, diverse piping systems, and complex operating environments. The construction involves the processing and drilling of pipes, blind plates, and tooling of various calibers and materials, and the number of these is large. Before the drilling machine works, it is necessary to clamp the workpiece and adjust the opening to the center of the drilling machine.

[0003] However, the inventors of this application found that the above technology has at least the following technical problems in the process of implementing the technical solution of the invention in the embodiment of this application: Ordinary bench drills often need to clamp the workpiece repeatedly to ensure that the drill bit is centered. The overall centering efficiency is low, and if there is eccentricity during the clamping process, it is difficult to detect the resulting loss of precision. Summary of the invention

[0004] In order to solve the deficiencies in the prior art and address the problem of centering the drill bit of an ordinary bench drill and a workpiece, the embodiment of the present application provides a drilling machine straight line laser assisted centering device and method. The method uses a drilling machine straight line laser assisted centering device to use laser marking guidance to assist the workpiece in centering during the clamping process, thereby improving the overall construction efficiency and quality and solving the technical problem of centering the workpiece when drilling.

[0005] The solution adopted by the embodiment of the present application to solve the technical problem is: A straight-line laser-assisted centering device for a drilling machine comprises a base, a magnet, a laser adjustment base and a straight-line laser transmitter; The straight line laser transmitter is used to emit a straight line laser light source, and the center point is confirmed after the straight laser lines intersect; The laser adjustment seat is used to accommodate the straight line laser emitter. A round hole is provided on the laser adjustment seat. The straight line laser emitter is clamped on the round hole. The inner diameter of the round hole is larger than the outer diameter of the straight line laser emitter. There are screws around the side of the laser adjustment seat. The posture of the straight line laser emitter is adjusted by the screws. The base includes a sleeve and a branch; the sleeve is sleeved on the flange seat at the root of the drill clamp of the drilling machine, and the central hole diameter of the sleeve corresponds to the outer diameter of the flange seat at the root of the drill clamp of the drilling machine; a branch is arranged in the radial direction of the sleeve, one end of the branch is connected to the sleeve, and the other end is connected to the laser adjustment seat and fixed; a slot is arranged on the branch for connecting and fixing the base with the drilling machine; In a preferred embodiment, magnets are inserted into the slots of the branches to magnetically attach the base to the drilling machine and fix it.

[0006] In a preferred embodiment, the base has more than two branches, including a three-branch base and a four-branch base; the angles between the branches on the three-branch base are 105°, 105° and 150° respectively; the angles between the branches on the four-branch base are uniformly distributed at 90°.

[0007] In a preferred embodiment, the base adopts a split design, and the sleeve needs to be cut and split from the middle, and then when installing, the two parts of the sleeve are buckled onto the flange seat at the root of the drill clamp of the drilling machine; In a preferred embodiment, the base adopts an integrated design, and the drill bit fixing clamp of the drilling machine needs to be disassembled, and then the sleeve is inserted from the lower end into the flange seat at the root of the drill clamp of the drilling machine.

[0008] In a preferred embodiment, the slot is a rectangular through hole.

[0009] In a preferred embodiment, the magnet is a rectangular block that matches the slots on the branches.

[0010] In a preferred embodiment, a straight-line laser-assisted centering device for a drilling machine also includes a laser position adjustment auxiliary template, which includes a template body, a template split base and a template split base magnetic block; the template split base is magnetically attracted to the workbench of the drilling machine through the template split base magnetic block, and the template body is assembled on the template split base. The template body has a narrow slit for reference of the laser passing through, and the laser emitted by the straight-line laser transmitter with the position adjusted can pass through the narrow slit of the template body without obstruction.

[0011] The sample body adopts an integrated rectangular parallelepiped structure, including a sample body bottom plate, a sample body vertical plate, double-sided convex shoulders of the sample body and a positioning column at the bottom of the sample body; The bottom plate of the sample body is arranged at the bottom of the sample body and is a plane structure, which is used as a reference plane; The template body stand is set in the middle of the template body bottom plate and is perpendicular to the template body bottom plate. A template body stand groove is set in the middle of the template body stand. The template body stand groove is a vertical square groove. The vertical edge line of the template body stand groove is perpendicular to the plane of the template body bottom plate. The template body stand is the final laser projection imaging surface. The vertical laser line of the laser image on the template body stand should be parallel to or completely overlap with the vertical edge line of the template body stand groove. The double-sided convex shoulders of the sample body are arranged at one end of the bottom plate of the sample body, and are in a triangular structure; a narrow slit of the sample body is arranged in the middle of the double-sided convex shoulders of the sample body, and the two opposite surfaces of the double-sided convex shoulders of the sample body are parallel to each other and perpendicular to the plane of the bottom plate of the sample body; The bottom positioning column of the sample body is arranged at the bottom of the bottom plate of the sample body, and is used to position the sample body; The overall appearance of the sample split base is circular, and there is a sample split base center through hole at the center of the sample split base, which is used to assemble the sample body bottom positioning column of the sample body and the drill bit centering of the drilling machine; with the sample split base center through hole as the center, there is a sample split base magnetic block installation groove in a circular array for installing the sample split base magnetic block; The sample split base magnetic block is a circular magnet, which is embedded in the sample split base magnetic block mounting groove to prevent the sample split base from shaking.

[0012] In order to further solve the technical problem to be solved by the embodiments of the present application, a laser-assisted centering method for a drilling machine provided in the embodiments of the present application includes the following steps: Step 1: Design the base 2 according to the specific size of the drilling machine 1 and install it on the drilling machine 1; Step 2: Install the laser adjustment seat 4 onto the base 2. The laser adjustment seat 4 can be welded or bonded with structural adhesive; Step 3, installing and fixing the straight line laser emitter 5; Step 4, respectively adjust the position of the laser projection line of each straight line laser emitter 5 to ensure that the laser projection line passes through the center point position on the platform of the drilling machine 1 and the plane where the laser projection line is located is perpendicular to the platform of the drilling machine 1; the centering process is completed.

[0013] Furthermore, in step 4, the laser position adjustment auxiliary template 6 is used, and the laser projection line of the straight line laser emitter 5 is projected onto the template body stand groove of the rear template body stand through the narrow slit 6131 of the middle template body 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 straight line laser emitter 5 is not installed correctly and needs to be adjusted in position until it passes through the narrow slit 6131 of the template body without any blockage. Furthermore, in step four, the laser position adjustment auxiliary template 6 is adapted to the same number of template body slits 6131 according to the base 2, and there is no need to move repeatedly during the entire adjustment process. A single-slit laser position adjustment auxiliary template 6 is used to rotate the laser position adjustment auxiliary template 6 when each straight-line laser emitter 5 needs to be adjusted.

[0014] Positive effects: One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. Since the embodiment of the present application adopts the technical means of providing a laser adjustment seat on the branch of the base, the straight line laser emitter can be embedded in the laser adjustment seat and adjust the posture, which effectively solves the technical problem of workpiece centering in the prior art, and then realizes the technical effect of confirming the center point after the intersection of straight laser lines and realizing the centering of the workpiece.

[0015] 2. Since the embodiment of the present application adopts the technical means of providing slots on the branches, inserting magnets in the slots can magnetically attract the base to the drilling machine, effectively solving the technical problem of workpiece centering in the prior art, thereby achieving the technical effect of facilitating clamping and improving work efficiency.

[0016] 3. Since the embodiment of the present application adopts the technical means of providing a laser position adjustment auxiliary template on the drilling press platform, when the bottom surface of the laser position adjustment auxiliary template coincides with the plane of the drilling press platform, the center point of the laser position adjustment auxiliary template coincides with the center point of the drilling press, ensuring that the laser projection of the straight-line laser emitter can pass through the narrow slit of the template body of the laser position adjustment auxiliary template, indicating that the projection line of the laser emitter passes vertically through the center point position on the drilling press platform, and the plane where the laser projection line of the straight-line laser emitter is located is perpendicular to the drilling press platform, which effectively solves the technical problem of workpiece centering in the prior art, and thus achieves the technical effect of workpiece centering.

[0017] The invention is suitable for application as a laser-assisted centering device and method for a straight line of a drilling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 This is a partial enlarged view of Example 1; Figure 3 It is a schematic diagram of the three-branch base structure; Figure 4 It is a schematic diagram of the four-branch base structure; Figure 5 This is a schematic diagram of the laser indicator line of this embodiment; Figure 6 This is a schematic diagram of the installation of the auxiliary sample for laser position adjustment; Figure 7 This is a schematic diagram of the installation of the split base of the sample; Figure 8 Auxiliary sample stereogram for laser position adjustment; Fig. 9 Adjust the auxiliary template main view for the laser position; Fig.10 It is AA view; Fig.11 Side view of auxiliary template for laser position adjustment; Fig.12 Attached diagram of auxiliary template for laser position adjustment; Fig.13 This is the northwest isometric view of the sample body; Fig.14 This is the southeast isometric view of the sample body; Fig.15 This is a schematic diagram of the sample split base.

[0020] In the figure: 1. Drilling machine; 2. Base, 21. Bushing, 22. Branches, 221. Slots; 3. Magnet; 4. Laser adjustment seat; 5. One-line laser transmitter, 6. Laser position adjustment auxiliary template, 61. Sample body, 611. Sample body bottom plate, 612. Sample body vertical board, 6121. Groove of the vertical plate of the sample body, 613. Double-sided convex shoulders of the sample body, 6131. ​​Narrow slit of the sample body, 614. The positioning column at the bottom of the sample body, 62. Sample split base, 621. The center through hole of the split base of the sample, 622. Sample split base magnetic block installation groove, 63. Sample split base magnet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill 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, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0022] As shown in the figure, a straight line laser assisted centering device for a drilling machine includes a base 2, a magnet 3, a laser adjustment seat 4 and a straight line laser transmitter 5; The straight line laser emitter 5 is used to emit a straight line laser light source, and the center point is confirmed after the straight laser lines intersect. In this embodiment, through the projection of the straight line laser emitted by the straight line laser emitter 5, multiple straight lines intersect with the center point after projection. Since this center point is a straight line laser projected from above, each straight line laser is projected in a plane. It is a plane projection, so it is not limited by the height and size of the workpiece, especially the pipe and flat workpiece can meet the use requirements. If the center point of the workpiece is concave or there are obstructions on all sides, so that the laser cannot be projected to the center part, the center point of the laser projection still intersects at the highest point after the height of the workpiece on the platform changes, so the center point can be generally projected successfully; The laser adjustment seat 4 is used to accommodate the straight line laser emitter 5. A circular hole is provided on the laser adjustment seat 4. The straight line laser emitter 5 is clamped on the circular hole. The inner diameter of the circular hole is larger than the outer diameter of the straight line laser emitter 5. There are screws around the sides of the laser adjustment seat 4. The screws can not only fix the straight line laser emitter 5, but also flexibly adjust the position and angle of the straight line laser emitter 5. If necessary, the straight line laser emitter 5 needs to be projected in an inclined state. In this embodiment, the laser adjustment seat 4 is a square block with a circular hole. The base 2 includes a sleeve 21 and a branch 22; the sleeve 21 is sleeved on the flange seat at the root of the drill clamp of the drilling machine 1, and the central hole diameter of the sleeve 21 corresponds to the outer diameter of the flange seat at the root of the drill clamp of the drilling machine, so as to ensure that the base 2 and the flange seat at the root of the drill clamp of the drilling machine can be precisely fitted, thereby reducing the error caused by the unevenness of the base 2; a branch 22 is provided in the radial direction of the sleeve 21, and the branch 22 is in the shape of a long rod, one end of the branch 22 is connected to the sleeve 21, and the other end is connected to the laser adjustment seat 4 and fixed; A slot 221 is provided on the branch 22 for connecting and fixing the base 2 to the drilling machine 1. In this embodiment, in order to ensure reliability, structural adhesive can be used for bonding or holes can be directly opened on the drilling machine 1 to connect and fix the base 2 to the drilling machine 1 with bolts; The magnet 3 is inserted into the slot 221 of the branch 22 to magnetically attract and fix the base 2 on the drilling machine 1 .

[0023] In order to ensure the stability of the structure of this embodiment, the base 2 has more than two branches 22, including a three-branch base and a four-branch base. Since the device adopts a method of confirming the center point after the intersection of straight laser lines, the base 2 must have more than two branches. In practice, as long as there are more than two branches, the use requirements can be met. Of course, the more branches there are, the more linear laser emitters can be installed, and the more straight lines emitted, the higher the relative accuracy.

[0024] In order to further ensure the stability of the structure of this embodiment, the angles between the branches 22 on the three-branch base are 105°, 105° and 150° respectively; the angles between the branches 22 on the four-branch base are 90° evenly distributed. The branches 22 of the base 2 are designed and distributed, and it is necessary to pay attention to avoid the operating handle of the drilling machine 1 during installation to prevent the branches 22 on the base 2 from interfering with the operating handle.

[0025] In order to optimize the structure of this embodiment, the base 2 adopts a split design, and the shaft sleeve 21 only needs to be cut and split from the middle, and then when installing, the two parts of the shaft sleeve 21 are buckled onto the flange seat at the root of the drill clamp of the drilling machine; In order 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 drilling machine needs to be disassembled and the base 2 is installed from the lower end.

[0026] In order to further optimize the structure of this embodiment, the slot 221 is a rectangular through hole.

[0027] As a conventional technical choice, the magnet 3 is a rectangular block matching the slot 221 on the branch 22 .

[0028] Preferably, a laser-assisted centering device for a straight line of a drilling machine further comprises a laser position adjustment auxiliary template 6, which 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 attracted to the workbench of the drilling machine 1 through the template split base magnetic block 63, the template body 61 is assembled on the template split base 62, and the template body 61 has a template body narrow slit 6131 for laser passing through reference, and the laser emitted by the straight line laser emitter 5 with adjusted position can pass through the template body narrow slit 6131 without obstruction; The sample body 61 adopts an integrated rectangular parallelepiped structure, including a sample body bottom plate 611, a sample body vertical plate 612, sample body double-side bosses 613 and a sample body bottom positioning column 614; The template body bottom plate 611 is arranged at the bottom of the template body 61 and is a plane structure, used as a reference plane; The template body stand 612 is arranged in the middle of the template body bottom plate 611 and is perpendicular to the template body bottom plate 611. A template body stand groove 6121 is arranged in the middle of the template body stand 612. The template body stand groove 6121 is a vertical square groove. The vertical edge line of the template body stand groove 6121 is perpendicular to the plane of the template body bottom plate 611. The template body stand 612 is the imaging surface of the final laser projection. The vertical laser line of the one-line laser imaging on the template body stand 612 should be parallel to or completely overlap with the vertical edge line of the template body stand groove 6121. The double-sided convex shoulders 613 of the template body are arranged at one end of the template body bottom plate 611, and are triangular in structure; a template body narrow slit 6131 is arranged in the middle of the double-sided convex shoulders 613 of the template body, and the two opposite surfaces of the double-sided convex shoulders 613 of the template body are parallel to each other and perpendicular to the plane of the template body bottom plate 611; the template body narrow slit 6131 is used for reference of laser passing, and the laser can pass through the template body narrow slit 6131 without obstruction after being adjusted to a position. If the laser is obstructed during passing through the narrow slit, it means that the laser is not installed correctly and needs to be adjusted until it passes through the template body narrow slit 6131 without obstruction; The template body bottom positioning column 614 is arranged at the bottom of the template body bottom plate 611, and is used to position the template body 61; specifically, it is connected and cooperated with the template split base 612, the template split base 612 is fitted with the drilling machine platform surface, and 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, ensuring that it is located in the center of the drilling machine.

[0029] The overall appearance of the sample split base 62 is circular, and there is a sample split base center through hole 621 at the center of the sample split base, which is used to assemble the sample body bottom positioning column 614 of the sample body 61 and the drill centering of the drilling machine 1; specifically, the size of the sample split base center through hole 621 is consistent with the size of the sample body bottom positioning column, and the upper end surface of the sample split base center through hole 621 has an arc chamfer, which facilitates the drilling machine drill bit to insert into the sample split base center through hole 621 for center positioning, and the drilling machine drill bit uses a drill bit with an outer diameter consistent with the aperture size of the sample split base center through hole 621; with the sample split base center through hole 621 as the center, the annular array has a sample split base magnetic block mounting groove 622 for mounting the sample split base Base magnet 63; specifically, the bottom of the sample split base 62 has six sample split base magnet installation grooves 622 for installing the sample split base magnet 63. The sample split base magnet 63 is directly fixed to the sample split base magnet installation groove 622 with super glue. The thickness of the sample split base magnet 63 is consistent with the depth of the sample split base magnet installation groove 622, ensuring that the sample split base magnet 63 is completely embedded in the sample split base magnet installation groove 622. After the sample split base magnet 63 is installed, the exposed surface coincides with the bottom plane of the sample split base 62 and cannot protrude, thereby avoiding the uneven installation of the sample split base magnet 63 affecting the fit between the sample split base 62 and the drilling machine working platform, thereby affecting the overall levelness of the sample.

[0030] The sample split base magnet block 63 is a circular magnet, embedded in the sample split base magnet block mounting groove 622. The sample split base magnet block 63 can maintain sufficient magnetic attraction to prevent the sample split base 62 from shaking.

[0031] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Since the laser adjustment seat 4 is provided on the branch 22 of the base 2, the straight line laser emitter 5 can be embedded in the laser adjustment seat 4 and adjusted in posture so that the center point can be confirmed after the straight laser lines intersect to realize the centering of the workpiece.

[0032] Since the branch 22 is provided with a slot 221 , the base 2 can be magnetically attracted to the drilling machine 1 by inserting the magnet 3 in the slot 221 , which facilitates clamping and improves work efficiency.

[0033] Since a laser position adjustment auxiliary template 6 is provided 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, 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 of the straight-line laser emitter 5 can pass through the narrow slit 6131 of the template body of the laser position adjustment auxiliary template 6, indicating that the projection line of the straight-line laser emitter 5 passes vertically through the center point position on the drilling machine 1 platform, and the plane where the laser projection line of the straight-line laser emitter 5 is located is perpendicular to the drilling machine 1 platform.

[0034] Since the template split base 62 is magnetically attracted to the workbench of the drilling machine 1 through the template split base magnetic block 63, and the template body 61 is assembled on the template split base 62, the magnetic attraction of the template split base magnetic block 63 makes the template split base 62 firmly adsorbed and fixed on the workbench 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 perform relative rotation around the positioning column 614 at the bottom of the template body. During the laser adjustment process, , rotate the template 61, and observe the image of the laser on the template body 612 at the same time. The laser image is completely vertical, and there is no interference with the template body narrow slit 6131 of the template body on both sides of the shoulders 613 of the template body, 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 be adjusted through the laser position adjustment auxiliary template 6. The vertical slit indicates that the projection line of the laser transmitter 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 1 platform.

[0035] A laser-assisted centering method for a drilling machine comprises the following steps: Step 1: Design the base 2 according to the specific size of the drilling machine 1 and install it on the drilling machine 1; Step 2, install the laser adjustment seat 4 on the base 2. The laser adjustment seat 4 is directly connected to the base 2 by welding or structural adhesive. Because the subsequent adjustment accuracy is mainly controlled by the projection line of the straight line laser emitter 5, there is no special accuracy requirement for the laser adjustment seat 4, and it can be installed normally. The laser adjustment seat 4 is square on the outside and circular on the inside. The inner diameter circle of the laser adjustment seat 4 is larger than the outer circle of the straight line laser emitter 5. There are screw holes around the side of the laser adjustment seat 4. The screw holes can not only fix the straight line laser emitter 5, but also flexibly adjust the position and angle of the straight line laser emitter 5. If necessary, the straight line laser emitter 5 needs to be projected in an inclined state; Step 3, install and fix the straight line laser emitter 5. The straight line laser emitter 5 can use a conventional straight line laser emitter. The light can be red light, blue light, or green light. It can be adjusted according to the working environment and tool color. The straight line laser emitter 5 is powered by a battery. It is not recommended to use a direct wire connection. The battery can be replaced or charged regularly. Step 4, adjust the position of the laser projection line of each straight line laser emitter 5 to ensure that the laser projection line passes through the center point position on the drilling machine 1 platform and the plane where the laser projection line is located is perpendicular to the drilling machine platform; to complete the adjustment of the laser emitter projection line position, multi-plane adjustment and calibration is required. Because the plane where the center point of the workpiece is located is variable, the position adjustment of the laser emitter directly affects the working accuracy. Here, taking the laser emission of three straight-line laser emitters 5 as an example, a laser position adjustment auxiliary template 6 is designed, and the straight-line laser emitter 5 is placed on the platform plane. The bottom surface of the laser position adjustment auxiliary template 6 coincides with the platform plane of the drilling machine 1, and the center point of the laser position adjustment auxiliary template 6 coincides with the center point of the drilling machine 1, to ensure that the laser projection can pass through the vertical seam of the laser position adjustment auxiliary template 6. It shows that the projection line of the laser emitter 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 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 gaps, and the center line of the gap coincides with the center line of the template. A universal template for the gap can also be designed, but each time each laser emitter is adjusted, the template must be rotated to make the laser pass through the template gap and project onto the vertical plate behind the template. The vertical plate behind the laser position adjustment auxiliary template 6 can depict vertical parallel lines, which is convenient for reference to whether the laser projection line is skewed.

[0036] It is worth noting that the contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of the drilling machine 1, the magnet 3 and the straight line laser emitter 5 are not specifically limited and can be determined using conventional equipment. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0037] Finally, it should be noted that the above 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser-assisted centering device for a drilling machine, characterized by: It comprises a base (2), a magnet (3), a laser adjustment base (4) and a straight line laser emitter (5); The straight line laser emitter (5) is used to emit a straight line laser light source, and the center point is determined after the straight laser lines intersect; The laser adjustment seat (4) is used to accommodate the straight line laser emitter 5. A circular hole is provided on the laser adjustment seat (4). The straight line laser emitter (5) is clamped on the circular hole. The inner diameter of the circular hole is larger than the outer diameter of the straight line laser emitter 5. Screws are provided around the side of the laser adjustment seat (4). The posture of the straight line laser emitter (5) is adjusted by the screws. The base (2) comprises a shaft sleeve (21) and a branch (22); the shaft sleeve (21) is sleeved on the flange seat at the root of the drill clamp of the drilling machine (1); the central hole diameter of the shaft sleeve (21) corresponds to the outer diameter of the flange seat at the root of the drill clamp of the drilling machine; a branch (22) is provided radially on the shaft sleeve (21); one end of the branch (22) is connected to the shaft sleeve (21), and the other end is connected to the laser adjustment seat (4) and fixed thereto; a slot (221) is provided on the branch (22) for connecting and fixing the base (2) to the drilling machine (1); The magnet (3) is inserted into the slot (221) of the branch (22) and is used to magnetically attract the base (2) to the drilling machine (1) and fix it.

2. According to claim 1, a drilling machine straight line laser assisted centering device is characterized by: The base (2) has more than two 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° respectively; the included angles between the branches (22) on the four-branch base are uniformly distributed at 90°.

3. The laser-assisted centering device for a drilling machine according to claim 2 is characterized in that: The base (2) adopts a split design, and the shaft sleeve (21) needs to be cut and split in the middle. Then, when installing, the two parts of the shaft sleeve (21) are buckled onto the flange seat at the root of the drill clamp of the drilling machine.

4. The laser-assisted centering device for a drilling machine according to claim 2 is characterized in that: The base (2) adopts an integrated design, and after the drill bit fixing clamp of the drilling machine is disassembled, the shaft sleeve (21) is inserted from the lower end into the flange seat at the root of the drill clamp of the drilling machine and installed.

5. The laser-assisted centering device for a drilling machine according to claim 2 is characterized in that: The slotted hole (221) is a rectangular through hole.

6. The laser-assisted centering device for a drilling machine according to claim 5 is characterized in that: The magnet (3) is a rectangular block that matches the slot hole (221) on the branch (22).

7. The laser-assisted centering device for a drilling machine according to claim 6 is characterized by: A laser-assisted centering device for a straight line of a drilling machine further comprises a laser position adjustment auxiliary template (6), wherein 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 attracted to the workbench of the drilling machine (1) via the template split base magnetic block (63), and the template body (61) is assembled on the template split base (62). The template body (61) has a template body narrow slit (6131) for laser passing through reference. The laser emitted by the straight line laser emitter (5) with adjusted position can pass through the template body narrow slit (6131) without obstruction.

8. The laser-assisted centering device for a drilling machine according to claim 7 is characterized in that: The sample body (61) adopts an integrated rectangular parallelepiped structure, comprising a sample body bottom plate (611), a sample body vertical plate (612), sample body double-sided shoulders (613) and a sample body bottom positioning column (614); The template body bottom plate (611) is arranged at the bottom of the template body (61) and is a plane structure, used as a reference plane; The template body stand (612) is arranged in the middle of the upper part of the template body bottom plate (611) and is perpendicular to the template body bottom plate (611). A template body stand groove (6121) is arranged in the middle of the template body stand (612). The template body stand groove (6121) is a vertical square groove. The vertical edge line of the template body stand groove (6121) is perpendicular to the plane of the template body bottom plate (611). The template body stand (612) is the final imaging surface of the laser projection. The vertical laser line of the one-line laser imaging on the template body stand (612) should be parallel to or completely overlap with the vertical edge line of the template body stand groove (6121). The double-sided convex shoulders (613) of the sample body are arranged at one end of the sample body bottom plate (611) and are triangular in structure; a sample body narrow slit (6131) is arranged in the middle of the double-sided convex shoulders (613) of the sample body, and the two opposite surfaces of the double-sided convex shoulders (613) of the sample body are parallel to each other and perpendicular to the plane of the sample body bottom plate (611); The template body bottom positioning column (614) is arranged at the bottom of the template body bottom plate (611) and is used to position the template body (61); The sample split base (62) has a circular overall appearance, and has a sample split base center through hole (621) at the center of the sample split base, which is used to assemble the sample body bottom positioning column (614) of the sample body (61) and the drill bit centering of the drilling machine (1); with the sample split base center through hole (621) as the center, a circular array has a sample split base magnetic block mounting groove (622) for mounting the sample split base magnetic block (63); The sample split base magnetic block (63) is a circular magnet, embedded in the sample split base magnetic block mounting groove (622), and is used to prevent the sample split base (62) from shaking.

9. A method for laser-assisted centering of a drilling machine line, characterized by: The device according to any one of claims 1 to 8 comprises the following steps: Step 1: design a base (2) according to the specific size of the drilling machine (1) and install it on the drilling machine (1); Step 2: Install the laser adjustment seat (4) onto the base (2). The laser adjustment seat (4) can be welded or bonded with structural adhesive; Step 3, installing and fixing the straight line laser emitter (5); Step 4, respectively adjust the position of the laser projection line of each straight line laser transmitter (5) to ensure that the laser projection line passes through the center point position on the drilling machine (1) platform and the plane where the laser projection line is located is perpendicular to the drilling machine (1) platform; the centering process is completed.

10. The method for laser-assisted centering of a drilling machine line according to claim 9 is characterized by: In the step 4, the laser position adjustment auxiliary template (6) is used, and the laser projection line of the straight line laser emitter (5) is projected onto the template body stand groove of the rear template body stand 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 straight 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 blockage. In the step 4, the laser position adjustment auxiliary template (6) is adapted to the same number of template body narrow slits (6131) according to the base (2) without having to be repeatedly moved 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 straight-line laser emitter (5) needs to be adjusted.

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