A high-precision installation and calibration method and device for 3D printing equipment tracks

Abstract

The invention relates to a high-precision installation and verification method and device for a track of a 3D printing device, comprising the steps of S1, cleaning two installation surfaces of the track; S2, placing two guide rails on the installation surfaces on both sides respectively, and slightly tightening the fixing screws on the guide rails on both sides with a first pre-tightening force; S3, placing a fixture horizontally between the guide rails on both sides, knocking one side of the fixture, so that the two ends of the fixture respectively expand and tighten the guide rails on both sides; S4, tightening and fixing the screws at the positions of the guide rails on both sides corresponding to the fixture with a second pre-tightening force, and knocking the fixture in the opposite direction to loosen the fixture; S5, moving the fixture, and repeating steps S3 to S4 until all the screws are fixed in sequence; the method adopts a method of sequentially expanding and tightening the relative positions of the guide rails on both sides with the fixture, so that the guide rails and the grid surface are closely attached, which improves the installation efficiency of the guide rails on one hand, and ensures the straightness and parallelism of the guide rail installation at the same time.

Description

Technical Field

[0001] The invention relates to a high-precision installation and calibration method and device for a 3D printing equipment track, belonging to the technical field of 3D printing equipment. Background Art

[0002] The requirements for mechanical installation accuracy in the industry are getting higher and higher, especially in the 3D printing industry, which has more stringent requirements for accuracy. Most of the parts with extremely high precision requirements are concentrated on the tracks. Not only are the straightness and flatness of the single-side track required to meet the standards, but there are also strict requirements for the parallelism and common flatness with the other track. Some large equipment also requires that the parallelism and verticality accuracy between one set of tracks and another set or even multiple sets of tracks meet extremely high standards. Therefore, the accuracy of track installation is extremely important.

[0003] There are two traditional methods for installing rails. One is to manually press the rail against the grid surface; the other is to manually detach the non-straight parts of the rail from the grid surface and tighten the fixing screws to achieve the straightness accuracy requirement.

[0004] The method of manually pressing the guide rail against the grid surface often cannot solve the problem of sharp bends in the guide rail. Although the method of manually releasing the guide rail from the grid surface can temporarily solve the straightness problem, the track also has very high requirements for flatness. When repairing the flatness, the fixing screws are often loosened repeatedly. When the screws are loosened, the track that has been straightened from the grid surface will bend again. At the same time, if the screws are loosened during future maintenance, the track will bend again, so it is difficult to ensure the stability of the straightness and parallelism of the track. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a high-precision installation and verification method and device for a 3D printing equipment track. The installation and verification method can improve the installation efficiency of the track and ensure the installation accuracy. In addition, it can also improve the stability of the straightness and parallelism of the track.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] In one aspect, the present invention provides a high-precision installation and calibration method for a 3D printing equipment track, comprising the steps of:

[0008] S1, two installation surfaces of the cleaning track, wherein the installation surface includes a horizontal surface and a grid surface perpendicular to the horizontal surface;

[0009] S2. Place the two guide rails on the mounting surfaces on both sides respectively, and lightly tighten the fixing screws on the guide rails on both sides with the first pre-tightening force;

[0010] S3. Place the fixture horizontally between the guide rails on both sides, and tap one side of the fixture to tighten the guide rails on both sides at both ends of the fixture;

[0011] S4. Tighten the screws at the positions of the fixtures corresponding to the guide rails on both sides with the second pre-tightening force, and knock the fixtures in the opposite direction to loosen them;

[0012] S5, moving the fixture, and repeating steps S3 to S4 until all the screws are fixed in sequence;

[0013] S6. Check and mark the straightness of the guide rails on both sides;

[0014] S7. After the straightness of the guide rails on both sides is checked and marked, one of the two mounting surfaces is selected as the reference surface, and if the straightness of the reference surface meets the standard, the straightness and parallelism of the mounting surface and the guide rail on the other side are checked and repaired directly with the reference surface as the reference;

[0015] If the straightness of the reference surface does not meet the standard, the reference surface is first repaired until it meets the standard, and then the straightness and parallelism of the mounting surface and the guide rail on the other side are checked and repaired using the repaired reference surface as a reference.

[0016] Furthermore, the straightness of the guide rails on both sides is checked and marked, specifically:

[0017] S6-1. Place a ruler opposite to the guide rail to be checked, fix the gauge on the slider of the guide rail to be checked, the slider is slidably connected to the guide rail, align the gauge head with the ruler, check the straightness of the guide rail by evenly moving the slider, and mark the places where the straightness does not meet the standard on the installation surface one by one;

[0018] S6-2. Repeat step S6-1 to check the straightness of the guide rail on the other side and mark them one by one.

[0019] Furthermore, the repairing of the reference surface is specifically as follows:

[0020] S7-1, loosen all screws of the guide rail on the reference surface, remove the guide rail on the reference surface, find the highest point on the grid surface according to the mark, apply the marking reagent to the highest point, rub the highest point with a ruler until scratches appear, and scrape the scratched position flat;

[0021] S7-2. Find the lowest point according to the mark and place an adjustment shim between the reference guide rail and the grid surface;

[0022] S7-3, check the guide rail on the reference surface. If it fails, repeat steps S7-1 and S7-2 to repair it again until the straightness of the guide rail on the reference surface meets the standard;

[0023] S7-4. Re-fix the guide rail on the reference surface to the repaired mounting surface and tighten the screws with the third preload force.

[0024] Furthermore, the straightness and parallelism of the mounting surface and the guide rail on the other side are checked and repaired, specifically:

[0025] Fix the gauge on the slider of the guide rail on the reference surface, aim the measuring head at the side of the other guide rail, and measure the straightness and parallelism. If it does not meet the standard, repeat steps S7-1 to S7-4 to repair the installation surface on the other side until the straightness and parallelism of the guide rail on the other side meet the standard, and tighten the screws with the third preload force;

[0026] If the standard has been met, the third preload force is directly used to tighten the screws again in sequence, thus completing the test installation process of the straightness and parallelism of the high-precision track.

[0027] On the other hand, the present invention also provides a high-precision installation and calibration device for a 3D printing equipment track, which is used to implement the described method, including the fixture and the scale, wherein at least two inclined surfaces and one plane are formed at both ends of the fixture respectively, and the inclination directions of the inclined surfaces at both ends are opposite and the inclination angles are the same, and the inclined surfaces and the plane are connected in sequence.

[0028] Furthermore, the two inclined surfaces and the plane are connected in sequence, the inclination angle of the first inclined surface is 14° to 15°, and the inclination angle of the second inclined surface is 8° to 9°.

[0029] Furthermore, the fixture includes a base, two sliders and two clamping heads, the two sliders and the two clamping heads correspond one to one, the base is provided with a slide rail, the two sliders slide along the slide rail, the clamping heads are detachably fixed on the corresponding sliders, the inclined surfaces are arranged on the clamping heads, and the inclination angles of the inclined surfaces on the two clamping heads are opposite.

[0030] Furthermore, a long strip groove is symmetrically opened at both ends of the base, and a plurality of adjustment holes are provided on the slider along the length direction for adjusting the length of the fixture. The adjustment hole is aligned with the long strip groove, and the slider is fixed by inserting the fixing screws into the long strip groove and the adjustment hole.

[0031] Furthermore, the chuck is made of soft metal material, and the base and the slider are made of hard metal material.

[0032] The present invention adopts the above technical solution, which has the following advantages:

[0033] The relative positions of the guide rails on both sides are sequentially expanded and tightened by using fixtures, so that the guide rails and the grid surface are in close contact, which improves the installation efficiency of the guide rails and ensures the straightness and parallelism of the guide rail installation.

[0034] It ensures that the guide rail is effectively attached to the grid surface. If the straightness does not meet the standard, the fixing screws can be loosened to remove the guide rail to repair the grid surface, further improving the installation accuracy of straightness and parallelism. When the grid surface is repaired to a qualified standard, the support method can be used to attach it to the grid surface again. Therefore, no matter how many times it is removed, it can be reset to meet the standard, which greatly increases the stability of the straightness and parallelism of the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Throughout the accompanying drawings, the same reference numerals are used to represent the same components. In the accompanying drawings:

[0036] Figure 1 This is a state view of cleaning the installation surface in step S1 of the present invention;

[0037] Figure 2 This is a state view of placing the guide rail on the installation surface in step S2 of the present invention;

[0038] Figure 3 This is a state view of the step S3 of the present invention in which the guide rails on both sides are tightened by a fixture;

[0039] Figure 4 It is a state view of using a gauge to check and mark the reference surface in step S6-1 of the present invention;

[0040] Figure 5 This is a state view of the present invention in which a gauge is fixed on the reference guide rail to calibrate and mark the guide rail on the other side;

[0041] Figure 6 It is a structural schematic diagram of an embodiment of the clamp provided by the present invention;

[0042] Figure 7 It is a bottom view of the fixture;

[0043] Figure 8 is a schematic structural diagram of an embodiment of a base;

[0044] Fig. 9 It is a structural schematic diagram of an embodiment of a slider;

[0045] Fig.10It is a structural schematic diagram of an embodiment of a chuck. DETAILED DESCRIPTION

[0046] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0047] The embodiment of the present invention provides a high-precision installation and verification method for a track. On the one hand, the method can expand the guide rails on both sides through a fixture to make the guide rails close to the grid surface, and tighten and fix all the screws in sequence, thereby improving the installation efficiency and straightness stability of the guide rails and reducing the labor intensity of manually adjusting the straightness of the guide rails. On the other hand, by verifying the straightness of the guide rails and the installation surface, and repairing the grid surface, the stability of the straightness and parallelism of the guide rails is further improved, so that no matter how many times the guide rails are loosened, they can be fixed according to the straightness position at the beginning of the detection when they are tightened next time. Compared with the existing fixing method that is separated from the grid surface, the stability of the straightness can be improved.

[0048] Example 1

[0049] Combination Figures 1 to 5 As shown, a high-precision installation and verification method for a 3D printing equipment track includes the following steps:

[0050] S1. Clean the two mounting surfaces of the rail, wherein the mounting surface includes a horizontal surface and a grid-supporting surface perpendicular to the horizontal surface. Specifically, the mounting surface of the rail can be firstly ground off the burrs on the mounting surface with an oil stone, and then the mounting surface and the bottom plane of the guide rail can be cleaned with a cleaning liquid. Figure 1 shown.

[0051] S2. Place the two guide rails 301 and 302 on the mounting surfaces 201 and 202 on both sides respectively, and lightly tighten the fixing screws on the guide rails 301 and 302 on both sides with a first pre-tightening force; the first pre-tightening force is preferably 1N to 3N.

[0052] S3, horizontally placing the fixture 100 between the guide rails 301 and 302 on both sides, knocking one side of the fixture 100, so that the two ends of the fixture 100 are respectively tightened with the guide rails 301 and 302 on both sides; wherein it is preferred that after tightening the guide rails, the two ends of the fixture 100 are respectively aligned with the two corresponding screws on the guide rails on both sides; the tightening force of the fixture 100 on the guide rails 301 and 302 on both sides is preferably 5N to 15N;

[0053] S4. Tighten and fix the two screws on the guide rails 301 and 302 on both sides corresponding to the fixture 100 with a second pre-tightening force, and knock the fixture 100 in the opposite direction to loosen the fixture 100; the second pre-tightening force of the screws is preferably about 15N.

[0054] S5, move the position of the fixture 100, and repeat steps S3 to S4 until all the screws are fixed in sequence;

[0055] S6. Check and mark the straightness of the guide rails 301, 302 on both sides and the mounting surface 200;

[0056] S7. After the straightness of the guide rails 301 and 302 on both sides are checked and marked, a mounting surface 200 whose straightness meets the standard or is closer to the standard is selected from the two mounting surfaces 200 as a reference surface. If the straightness of the reference surface meets the standard, the straightness and parallelism of the mounting surface and the guide rail on the other side are checked and repaired directly with the reference surface 200 as the reference;

[0057] If the straightness of the reference surface 200 does not meet the standard, the reference surface is first repaired until it meets the standard, and then the straightness and parallelism of the mounting surface on the other side are checked and repaired using the repaired reference surface as a reference.

[0058] The present invention uses the fixture 100 to expand the guide rails 301 and 302 on both sides so as to make the guide rails close to the grid surface. Compared with the existing manual installation and fixing method, it is more efficient and can better ensure the stability of the straightness and parallelism of the guide rail installation, and can be disassembled repeatedly.

[0059] The straightness of the guide rails on both sides is checked and marked as follows:

[0060] S6-1, place the ruler 500 opposite to the guide rail 302 to be calibrated, fix the gauge 600 on the slider 700 of the guide rail 302 to be calibrated, align the gauge head with the ruler 500, evenly move the slider 700, and calibrate both ends of the ruler 500 first;

[0061] S6-2, move the slider 700 again to check the straightness of the guide rail 302, and mark the places where the straightness does not meet the requirements one by one;

[0062] S6-3. Repeat steps S6-1 to S6-2 to check the straightness of the guide rail 301 on the other side and mark them one by one.

[0063] In step S6-1, the two ends of the ruler 500 are first calibrated to ensure that the straightness of the ruler 500 is standard. Specifically, the ruler 500 can be moved so that the pointer of the ruler 600 points to the ruler 500 and moves along the ruler 500, and the ruler 500 is adjusted so that the values ​​at the two ends of the ruler 600 are consistent. When the values ​​at the two ends are consistent, it means that the ruler 500 is parallel.

[0064] After the ruler 500 is calibrated, the scale 600 is moved so that the pointer of the scale 600 moves along the ruler 500. The pointer reading changes during the movement along the ruler 500. The positions where the straightness of the guide rail 302 and the mounting surface 200 does not meet the requirements can be obtained based on the changed data, and the positions are marked one by one. The straightness of the guide rail 301 and the mounting surface 200 on the other side can be tested in the same way, and the positions that do not meet the requirements can be marked.

[0065] Select one of the two mounting surfaces 200 whose straightness meets the standard or is closer to the standard as the reference surface. Specifically, the selection can be made based on the number of detected markings on the guide rails on both sides and the numerical values ​​of the markings. For example, if there are more markings, it means that there are more position points on the guide rail that need to be repaired, and the larger the marking value, the greater the adjustment required.

[0066] The repairing of the reference surface, specifically repairing the grid surface of the reference surface, comprises the steps of:

[0067] S7-1. Loosen all screws of the reference guide rail on the reference surface, remove the guide rail on the reference surface, find the highest point on the grid surface according to the mark, apply the reagent to the highest point, rub the highest point with a ruler until scratches appear, and use a scraper to flatten the position where the scratches appear;

[0068] S7-2. Find the lowest point according to the mark and place an adjustment shim between the reference guide rail and the grid surface;

[0069] S7-3, check the guide rail on the reference surface. If it fails, repeat steps S7-1 and S7-2 to repair it again until the straightness of the guide rail on the reference surface meets the standard;

[0070] S7-4. Re-fix the reference guide rail on the repaired mounting surface and tighten the screws with the third preload force.

[0071] It should be noted that the above-mentioned repair of the high points or raising of the low points can be repeated many times until the straightness of the guide rail meets the standard.

[0072] The above reagent can be motor oil blended with red lead powder.

[0073] As described above, the greater the deviation of the value measured by the scale from the standard value, the greater the thickness of the marking point that needs to be scraped off or the thicker the shim that needs to be raised.

[0074] Check and repair the straightness and parallelism of the mounting surface and guide rail on the other side as follows:

[0075] Fix the gauge on the slider of the guide rail on the reference surface, aim the measuring head at the side of the other guide rail, and measure the straightness and parallelism. If it does not meet the standard, repeat steps S7-1 to S7-3 to repair the installation surface on the other side until the straightness and parallelism of the guide rail on the other side meet the standard, and tighten the screws with the third preload force;

[0076] If the standard has been met, the fixing screws are directly tightened again with the third preload force to complete the test installation process of the straightness and parallelism of the high-precision track.

[0077] The first preload force, the second preload force and the third preload force gradually increase in magnitude. The first preload force F1 is preferably 1N to 3N, the second preload force F2 is preferably about 15N, and the third preload force F3 is preferably 20N to 30N, so the screws are gradually tightened and fixed until the straightness and parallelism are fully met and the screws are fully tightened.

[0078] The present invention includes installation, verification and repair of the guide rail and the installation surface. The guide rail screws are expanded and tightened in sequence by a fixture. Compared with the existing installation method of detaching from the installation surface and manual adjustment, the guide rail installation efficiency is higher. At the same time, the straightness and parallelism of the installed guide rail are verified, and the installation surface is repaired, which can ensure the stability of the straightness of the guide rail, so that the guide rail can be quickly reset after the screws are loosened during the subsequent flatness detection process or maintenance process.

[0079] Example 2

[0080] like Figures 6 to 10 As shown, embodiment 2 of the present invention further provides a device for implementing the high-precision installation and calibration method of the 3D printing equipment track, including a gauge 600 and a fixture 100, wherein two inclined surfaces 31, 34 and a plane 33 are formed at both ends of the fixture 100, and the inclined surfaces 31, 34 at both ends are inclined in opposite directions and have the same inclination angle. The inclination angle of the first inclined surface 31 is greater than the inclination angle of the second inclined surface 34. The first inclined surface 31, the second inclined surface 34 and the plane 33 are connected in sequence.

[0081] When in use, the clamp 100 is placed between the guide rails on both sides so that the inclined surface at one end of the clamp contacts the side surface of one side of the guide rail, and one side of the clamp 100 is knocked to make the clamp rotate slightly, and both ends of the clamp gradually slide along the inclined surface until the plane 33 abuts against one side of the guide rail, thereby tightening the guide rails on both sides.

[0082] The inclined plane may also be designed to be more than two, preferably two, and the plurality of inclined planes are sequentially connected, and the inclination angles of the plurality of inclined planes decrease sequentially along the sliding direction.

[0083] Furthermore, in order to improve the adaptability of the fixture 100 so that the fixture 100 can be used for the installation of guide rails with different spacings, the fixture includes a base 1 and two clamps 3, the two clamps 3 are detachably fixed at both ends of the base 1 and can slide along the base 1, and the two clamps 3 are connected to the base 1 by sliding to adjust their positions on the base 1, and the inclined surface is arranged on the clamps 3.

[0084] When a larger guide rail spacing is required, the distance between the two clamps 3 is increased by moving at least one side of the clamp 3 toward the end. After adjusting the distance between the clamps 3 at both ends, the clamps 3 are fixed to the base 1, and can be used for the installation of guide rails on both sides with a larger distance.

[0085] Further, the fixture also includes two sliders 2, the two sliders 2 and the two clamps 3 correspond one to one, a slide rail is formed on the base 1, the two sliders 2 are sleeved on the slide rail and slide along the slide rail, and the clamp 3 is fixedly mounted on the corresponding slider 2. A mounting step 21 is formed on the slider 2, a threaded hole 22 is provided on the mounting step 21, and a mounting hole 33 corresponding to the threaded hole 22 is provided on the clamp 3, and a fixing screw 5 is inserted into the mounting hole 33 and the threaded hole 22 to fix the clamp 3 on the slider 2. In the present invention, the clamp 3 and the slider 2 are detachable, so that the clamp 3 can be replaced when the clamp 3 is damaged without replacing the entire slider 2, thereby reducing the cost. The clamp 3 in the present invention is preferably made of aluminum alloy, and the slider 2 and the base 1 are preferably made of stainless steel. The clamp 3 is made of aluminum alloy, which is a softer material, to avoid damage to the guide rail.

[0086] A long strip groove 11 is symmetrically provided at both ends of the base 1, and a plurality of adjustment holes 23 are provided on the slider 2 along the length direction, and the adjustment holes 23 are aligned with the long strip groove 11, and the slider 2 is inserted into the long strip groove 11 and the adjustment holes 23 for fixing by fixing screws 4. In the present invention, the spacing between the chucks 3 can be adjusted by adjusting the position of the slider 2 in the long strip groove 11 and tightening the screws 4 at the desired position.

[0087] For easy installation, the bottom surface of the base 1 is further provided with a mounting groove 12, and the elongated groove 11 is arranged in the mounting groove 12, and the elongated groove 11 passes through the top surface of the base 1. A mounting boss is formed between the mounting groove 12 and the elongated groove 11, and the fixing screw 4 passes through the mounting groove 12 and the elongated groove 11 from the bottom of the base 1 in sequence to fix the slider 2.

[0088] The method for using the fixture 100 comprises the following steps:

[0089] The fixture 100 is placed between the guide rails on both sides, so that the inclined surface at one end of the fixture 100 contacts the side surface of one side of the guide rail, and one side of the fixture 100 is knocked to rotate the fixture 100, and both ends of the fixture 100 gradually slide along the inclined surface until the plane 33 contacts one side of the guide rail, thereby tightening the guide rails on both sides;

[0090] Tighten and fix the screws on the guide rails on both sides that are opposite to the fixture 100;

[0091] Move the fixture 100 and repeat the above steps until the screws on the guide rails on both sides are fixed in sequence.

[0092] The above method provided by the present invention adopts the use of a clamp, and inclined surfaces are set at both ends of the clamp 100. When in use, one side of the clamp 100 is knocked to make the clamp rotate slightly, and the two ends of the clamp 100 gradually slide along the inclined surface to the plane 33 and abut against the side of the guide rail, thereby expanding and tightening the guide rails on both sides, which can improve the efficiency and installation accuracy of the guide rail.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-precision installation and verification method for a 3D printing equipment track, characterized in that: Includes steps: S1, two installation surfaces of the cleaning track, wherein the installation surface includes a horizontal surface and a grid surface perpendicular to the horizontal surface; S2. Place the two guide rails on the mounting surfaces on both sides respectively, and lightly tighten the fixing screws on the guide rails on both sides with the first pre-tightening force; S3. Place the fixture horizontally between the guide rails on both sides, and tap one side of the fixture to tighten the guide rails on both sides at both ends of the fixture; S4. Tighten the screws at the positions of the fixtures corresponding to the guide rails on both sides with the second pre-tightening force, and knock the fixtures in the opposite direction to loosen them; S5, moving the fixture, and repeating steps S3 to S4 until all the screws are fixed in sequence; S6. Check and mark the straightness of the guide rails on both sides; S7. After the straightness of the guide rails on both sides is checked and marked, one of the two mounting surfaces is selected as the reference surface, and if the straightness of the reference surface meets the standard, the straightness and parallelism of the mounting surface and the guide rail on the other side are checked and repaired directly with the reference surface as the reference; If the straightness of the reference surface does not meet the standard, the reference surface is first repaired until it meets the standard, and then the straightness and parallelism of the mounting surface and the guide rail on the other side are checked and repaired using the repaired reference surface as a reference.

2. The high-precision installation and verification method for the 3D printing equipment track according to claim 1, characterized in that: The straightness of the guide rails on both sides is checked and marked as follows: S6-1. Place a ruler opposite to the guide rail to be checked, fix the gauge on the slider of the guide rail to be checked, the slider is slidably connected to the guide rail, align the gauge head with the ruler, check the straightness of the guide rail by evenly moving the slider, and mark the places where the straightness does not meet the standard on the installation surface one by one; S6-2. Repeat step S6-1 to check the straightness of the guide rail on the other side and mark them one by one.

3. The high-precision installation and calibration method for the 3D printing equipment track according to claim 2, characterized in that: The repairing of the reference surface is specifically as follows: S7-1, loosen all screws of the guide rail on the reference surface, remove the guide rail on the reference surface, find the highest point on the grid surface according to the mark, apply the marking reagent to the highest point, rub the highest point with a ruler until scratches appear, and scrape the scratched position flat; S7-2. Find the lowest point according to the mark and place an adjustment shim between the reference guide rail and the grid surface; S7-3, check the guide rail on the reference surface. If it fails, repeat steps S7-1 and S7-2 to repair it again until the straightness of the guide rail on the reference surface meets the standard; S7-4. Re-fix the guide rail on the reference surface to the repaired mounting surface and tighten the screws with the third preload force.

4. The high-precision installation and verification method for the 3D printing equipment track according to claim 3, characterized in that: The straightness and parallelism of the mounting surface and the guide rail on the other side are checked and repaired, specifically: Fix the gauge on the slider of the guide rail on the reference surface, aim the measuring head at the side of the other guide rail, and measure the straightness and parallelism. If it does not meet the standard, repeat steps S7-1 to S7-4 to repair the installation surface on the other side until the straightness and parallelism of the guide rail on the other side meet the standard, and tighten the screws with the third preload force; If the standard has been met, the third preload force is directly used to tighten the screws again in sequence, completing the test installation process of the straightness and parallelism of the high-precision track.

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