Laser leveling device without physical adjustment and methods for mounting and processing this

Abstract

Laser leveling device without physical adjustment, comprising a movement arrangement (10) and a cover arrangement (20) which are rigidly connected to each other, wherein the motion arrangement (10) comprises a motion holder (11) to which at least three connecting screw bolts (12) are attached, wherein an X-axis spirit level (13), a Y-axis spirit level (14) and a Z-axis spirit level (15) are arranged on the motion holder (11), and wherein the cover arrangement (20) comprises a cover body (21) in which rigid spacer bolts (22) are attached to the cover body (21) by means of a sealing adhesive, wherein the number of rigid spacer bolts (22) corresponds to the number of connecting screw bolts (12), the rigid spacer bolts (22) protrude from the cover body (21) and the rigid spacer bolts (22) and the connecting screw bolts (12) are connected to each other by screws; and wherein a mounting seat (30) for a lighting mechanism (40) is further attached to the motion holder (11), wherein the lighting mechanism (40) is attached to the mounting seat (30) for the lighting mechanism (40) by screws, and wherein at least three mounting projections (31) are arranged on the mounting seat (30) for the lighting mechanism (40), wherein a first screw hole (311) extends through an associated mounting projection (31) and the motion holder (11), and wherein the lighting mechanism (40) comprises a light source support shell (41) in which a light source (42) is mounted, and wherein an annular projecting mounting section (44) is attached to a side of the mounting plate (43) facing away from the light emission of the light source (42), wherein a gap is provided between the inner ring of the annular projecting mounting section (44) and the light source support shell (41),and wherein a number of second screw holes (441) corresponding to the number of mounting projections (31) are provided in the annular projecting mounting section (44), the second screw holes (441) extending through the mounting plate (43) and the positions of the second screw holes (441) being aligned with the positions of the first screw holes (311); , and wherein a ball bearing mounting seat (211) is arranged on the lid body (21) in which a ball bearing (212) is attached, wherein a rotary mechanism is arranged in the ball bearing (212), and wherein a breaking mechanism (60) is attached at an output end at the upper end of the rotary mechanism; and wherein the end faces of the connecting screw bolts (12), the end faces of the rigid spacer bolts (22), the end face of the mounting projection (31) and the end face of the annular protruding mounting section (44) are each aligned parallel to an XY plane, and wherein the optical axis of the light source (42) and the center of rotation of the rotary mechanism are each aligned parallel to a Z axis, while the optical axis of the light source (42) and the center of rotation of the rotary mechanism are coaxial to each other.

Description

TECHNICAL AREA

[0001] The present invention relates to a level testing device, in particular a laser level testing device without physical adjustment, and a method for assembling and processing it. STATE OF THE ART

[0002] A laser level is a leveling instrument in which a laser beam emitted by a laser device is directed into a telescope of the leveling instrument, so that the laser beam is emitted along the direction of the collimation axis. The emitted laser lines measure and verify the horizontal and vertical lines / planes. A laser leveling device is a type of laser level. The laser beam emitted by a laser emission device is refracted and rotated by a laser leveling device, so that the laser beam is emitted at different times in different horizontal directions from the same center point. The laser beams emitted at different times form a laser alignment plane parallel to the horizontal plane; at a sufficiently high rotation frequency, a laser plane is perceived by the human eye.The laser leveling device is widely used in the design or installation of large construction projects and large machines and plants.

[0003] Most existing laser leveling devices on the market are manufactured as follows: an integrated base with various mounting positions is produced, and then various components are installed in the base. Because all components are installed in a single base, the assembly process becomes more complex: even a small assembly error can compromise the precision of the laser leveling device's alignment plane, and the finished product may only be usable after extensive adjustments. Furthermore, all mounting positions are typically formed as single pieces. These mounting positions may not be perfectly aligned with the components installed within them, resulting in assembly deviations. Simultaneously, the individual components themselves may also exhibit deviations of varying degrees.The superposition of both deviations can create a large deviation, resulting in a low reference accuracy of the laser alignment plane emitted by the laser leveling device.

[0004] US 2005 / 0066533A1 discloses a laser level comprising a housing with a base and a combination of an anchoring assembly, a suction assembly, or a magnet for attachment to a surface. An adjustment unit provides control and precision by allowing the leveling or plumbing of the laser level after attachment to the surface, converting a relatively large rotation of an adjustment handle into a finer leveling adjustment of the laser level. The laser level is attached to an auxiliary base that allows the leveling of the laser level in two perpendicular planes and permits the laser level to be mounted on a tripod for horizontal, vertical, and intermediate angle use.

[0005] DE 10 2007 000 580 A1 discloses a laser marking device with a gimbal mechanism and a light source unit held in a holder.

[0006] US Patent 4,854,703 A discloses a laser beam leveling device in which a laser beam can be tilted along two axes perpendicular to each other. A self-leveling measuring plate is provided at the lower end of a rotating shaft of the device. Two spindles, positioned perpendicular to each other, are arranged on this plate, with a joint located at their intersection. Threaded rods are arranged on the measuring plate at the ends of the two spindles opposite the joint, allowing the ends of the spindles to be moved vertically along these rods. The joint has a central section that is connected to the rotating shaft via a pin and an intermediate piece and is surrounded by a housing that is ball-bearing mounted on vertical arms on the measuring plate. Furthermore, two spirit levels, positioned perpendicular to each other, are arranged on the measuring plate, each spirit level controlling an electric motor for self-leveling the measuring plate. SUMMARY OF THE INVENTION

[0007] It is an object of the present invention to provide a laser leveling device that requires no physical adjustment, can be easily mounted, and does not require any adjustment after mounting. According to a further aspect of the present invention, a corresponding method for mounting and machining such a laser leveling device is to be provided.

[0008] These tasks are solved by a laser leveling device without physical calibration and by a method for assembling and machining such a laser leveling device according to claim 8. Further advantageous embodiments are the subject of the dependent claims.

[0009] Because the laser leveling device is divided into two large, rigidly connected modules, assembly difficulties are reduced, and the finished product requires no adjustment. The assembly and processing steps of the process effectively prevent the superimposition of multiple types of deviations, which would otherwise compromise the precision of the emitted laser alignment plane.

[0010] The present invention has the following advantages: the present invention discloses a laser leveling device without physical adjustment and a method for assembling and machining it, wherein two large modules – the movement assembly and the cover assembly – are arranged for pre-assembly to avoid the need for a one-time assembly of all components. This effectively reduces the difficulty of assembly because the two large modules are rigidly connected to each other. Furthermore, a base is provided for subsequent machining, thus effectively improving the precision of the entire device.Furthermore, the motion holder performs surface treatment on the mounting protrusion in the mounting seat of the lighting mechanism only after the level control mechanism has been attached. This effectively ensures that the control results of the level control mechanism can be directly fed back to the mounting protrusion, preventing any mounting deviation or inherent problems with the mounting part from causing significant discrepancies. The lighting mechanism and the cover body are also pre-assembled, and the mounting surface is subsequently treated. This significantly reduces deviations at various points throughout the entire device. Ultimately, the finished product requires no adjustment and is ready for immediate use. Additionally, the laser alignment plane emitted by the entire device exhibits high precision. FIGURE OVERVIEW Fig. Figure 1 shows a perspective structural view of the present invention. Fig. Figure 2 shows a schematic structural view of the present invention, which is divided into a movement arrangement and a lid arrangement. Fig. Figure 3 shows a schematic structural view of the present invention divided into the respective components. Fig. Figure 4 shows a schematic top view of the present invention. Fig. Figure 5 shows a schematic cross-sectional view along the A-A' direction according to Fig. 4. Fig. Figure 6 shows a schematic structural view of the motion holder and the mounting seat of the lighting mechanism according to the present invention. Fig. Figure 7 shows a schematic structural view of the lid body and the ball bearing according to the present invention. Fig. Figure 8 shows a schematic top view of the lighting mechanism of the present invention. Fig. Figure 9 shows a schematic cross-sectional view along the B-B' direction according to Fig. 8. DETAILED DESCRIPTION

[0011] In conjunction with the figures and detailed embodiments, the present invention is explained in more detail below so that its features, technical measures, and the specific goals and functions to be achieved are further understood. Reference is made to the accompanying figures. Fig. 1 to 9.

[0012] A laser leveling device without physical adjustment according to the present invention comprises a motion arrangement 10 and a cover arrangement 20, which are rigidly connected to one another, wherein the motion arrangement 10 comprises a motion holder 11, and wherein at least three connecting screw bolts 12 are attached to the motion holder 11, and wherein an X-axis spirit level 13, a Y-axis spirit level 14 and a Z-axis spirit level 15 are further arranged on the motion holder 11, and wherein the cover arrangement 20 comprises a cover body 21, and wherein rigid spacer bolts 22 are fixed in the cover body 21 by means of a sealing adhesive, wherein the number of rigid spacer bolts 22 corresponds to the number of connecting screw bolts 12.Preferably the rigid spacer bolts 22 are brass spacer bolts, wherein the rigid spacer bolts 22 protrude from the cover body 21, and wherein the rigid spacer bolts 22 and the connecting screw bolts 12 are connected to each other by screws.

[0013] A mounting seat 30 for a lighting mechanism 40 is attached to the motion holder 11, the lighting mechanism 40 being connected to the mounting seat 30 by screws. At least three mounting projections 31 are arranged on the mounting seat 30 for the lighting mechanism 40, with a first screw hole 311 extending through an associated mounting projection 31 and through the motion holder 11. The lighting mechanism 40 comprises a light source support shell 41 in which a light source 42 is mounted.Preferably, the light source 42 is a laser diode, wherein an annular protruding mounting section 44 is attached to a side of the mounting plate 43 facing away from the light emission of the light source 42, and wherein a gap is provided between the inner ring of the annular protruding mounting section 44 and the light source support shell 41 to prevent the light source support shell 41 from interfering with subsequent machining, and wherein a number of second screw holes 441 are provided in the annular protruding mounting section 44, corresponding to the number of mounting projections 31, and wherein each second screw hole 441 extends further through the mounting plate 43, and wherein the positions of the second screw holes 441 are aligned with the positions of the first screw holes 311.The mounting projection 31 and the ring-shaped protruding mounting section 44 each protrude from the planes in which they are located. This provides a basis for subsequent machining to ensure proper alignment.

[0014] A ball bearing mounting seat 211 is arranged on the cover body 21, wherein a ball bearing 212 is attached in the ball bearing mounting seat 211, in which a rotary mechanism is arranged, and wherein a breaking mechanism 60 is attached to an output end at the upper end of the rotary mechanism. Preferably, one end of the ball bearing 212 is spherical and the other end is designed as a shaft, wherein the center is a passage for connecting the two ends, and wherein the breaking mechanism 60 comprises a pentaprism and a mounting seat for the pentaprism.

[0015] The end face of the connecting screw bolt 12, the end face of the rigid spacer bolt 22, the end face of the mounting projection 31 and the end face of the annular protruding mounting section 44 are each aligned parallel to the XY plane, wherein the optical axis of the light source 42 and the center of rotation of the rotary mechanism are each aligned parallel to the Z-axis and the optical axis of the light source 42 and the center of rotation of the rotary mechanism are coaxial to each other.

[0016] A laser leveling device without physical adjustment according to the present invention has the following operating procedure: the level of the entire device is adjusted by the X-axis spirit level 13, the Y-axis spirit level 14 and the Z-axis spirit level 15, the light source 42 in the lighting mechanism 40 shines a thin beam of light onto the upper refraction mechanism 60, the rotation mechanism drives the refraction mechanism 60 to rotate, the rotating refraction mechanism 60 refracts the thin beam of light into the horizontal circumference to form a laser alignment plane parallel to the horizontal plane.

[0017] In the present invention, two large modules – the movement assembly 10 and the cover assembly 20 – are arranged for pre-assembly to avoid the need for one-time assembly of all components. This effectively reduces the assembly difficulty. The two large modules are rigidly connected to each other, and a base is also provided for subsequent machining, which effectively improves the precision of the entire device.

[0018] To improve the precision of the present invention, in the present embodiment, each mounting projection 31 protrudes by a height of 0.5–1 mm from the mounting seat of the lighting mechanism 30, wherein all mounting projections 31 are internally tangentially distributed in a circle with a diameter P, and wherein P ≥ 27 mm. The annular projecting mounting section 44 projects by a height of 0.5–1 mm from the mounting plate 43, wherein the diameter of the outer ring of the annular projecting mounting section 44 is greater than or equal to 27 mm. The mounting projection 31 and the annular projecting mounting section 44 project by a height of 3.5–4 mm, thus providing a protruding, easily machined base for subsequent surface milling, without causing excessive protrusion to interfere with the assembly of other components.The following applies: j=i / tank, where i represents the machining accuracy of the milling machine, j represents the outer diameter of the machining plane, and k represents the accuracy of the machining and forming. When using a milling machine with an accuracy of 0.005 mm, the machining and forming accuracy requirement of 0≤k≤37" can only be met if the diameter of the milling cutter's rotation or the diameter of the machining plane's rotation is greater than or equal to 27 mm.

[0019] In the present embodiment, the rotary mechanism comprises a hollow rotary shaft 51, wherein a rotary plate 52 is attached to one end of the hollow rotary shaft 51 facing the motion arrangement 10, while another end of the hollow rotary shaft 51 is an output end of the rotary mechanism, and wherein the hollow rotary shaft 51 is installed in the ball bearing 212 by means of a bearing 53, and wherein the rotary mechanism further comprises a rotary drive motor 54, and wherein an output end of the rotary drive motor 54 is connected to the rotary plate 52 by a belt 55. The rotary drive motor 54 drives the hollow rotary shaft 51 to rotate via the belt 55, and the breaking mechanism 60 on the hollow rotary shaft 51 rotates accordingly.

[0020] In the present embodiment, the radius of the cylindrical inner cavity of the hollow rotating shaft 51 is R, wherein the radius of a light beam emitted by the light source 42 is r, and wherein r≤R, thereby preventing the hollow rotating shaft 51 from influencing the shape and / or direction of the light beam emitted by the light source 42.

[0021] In the present embodiment, a coding plate 521 is attached to the rotary plate 52, wherein a photoelectric sensor is arranged in the cover body 21, and wherein the induction section of the photoelectric sensor is precisely assigned to the coding plate 521. Patterns with spaced-apart black and white colors are provided on the coding plate 521, thereby enabling a pulse signal generated by the rotary coding plate 62 to be transmitted to the photovoltaic sensor device in order to monitor and adjust the rotational speed of the rotary plate 52.

[0022] In the present embodiment, a ball limiting block 71 is connected to a ball end of the ball bearing 212, wherein a locking plate 72 is arranged between the ball limiting block 71 and the cover body 21, and wherein a gourd-shaped discharge notch 721 is provided on the locking plate 72, and wherein a section of the discharge notch 721 with a smaller radius is located in the center of the locking plate 72, and wherein the locking plate 72 is connected to the cover body 21 by a locking connection mechanism 73, and wherein the locking connection mechanisms 73 are provided in a number of at least 2. The locking plate 72 primarily achieves a protective function; The section of the bottle-shaped discharge notch 721 with a smaller radius serves to lock the ball limiting block 71, while the section of the bottle-shaped discharge notch 721 with a larger radius serves to allow the ball limiting block 71 to pass through.The detent mechanism 73 comprises a detent motor, a detent block, and a hook spring. The detent motor is installed in the cover body, and the detent block forms a threaded connection with the output end of the detent motor. A limiting column, matched to the detent block, is arranged on a side face of the cover body 21. The limiting column restricts the rotation of the detent block. One end of the hook spring is connected to the detent block, and the other end is connected to the detent plate 72. The detent motor rotates forward and engages with the limiting column to drive the detent block in the lowering direction: the tightened hook spring secures the position of the detent plate 72. The detent motor rotates backward and engages with the limiting column to drive the detent block in the raising direction: the hook spring, returning to its original length, disengages the detent plate 72.

[0023] The embodiment of the present invention further discloses a method for assembling and processing the laser leveling device without physical adjustment, comprising the following steps in succession: A. Obtaining a motion holder 11, a cover body 21 and a lighting mechanism 40 by machining, wherein mounting positions for pre-assembly are provided on the motion holder 11, the cover body 21 and the lighting mechanism 40; B. Attaching the X-axis spirit level 13, the Y-axis spirit level 14 and the Z-axis spirit level 15 in the motion holder 11 (the X-axis spirit level 13, the Y-axis spirit level 14 and the Z-axis spirit level 15 constitute a level control mechanism); C. Placing the motion holder 11 in a milling machine, leveling the motion holder 11 using the X-axis spirit level 13, the Y-axis spirit level 14 and the Z-axis spirit level 15, milling the end face of the connecting screw bolt 12 and the end face of the mounting projection 31 by the milling machine, such that the end face of the connecting screw bolt 12 and the end face of the mounting projection 31 are each aligned parallel to the XY plane; and wherein the end faces of all connecting screw bolts 12 are coplanar and the end faces of all mounting projections 31 are coplanar; thus, the control of the leveling mechanism can act directly on the mounting projections 31 and the connecting screw bolts 12, thereby effectively preventing the leveling mechanism from being unable to effectively adjust the mounting projections 31 and the connecting screw bolts 12; D. Clamping the illumination mechanism 40 in a rotary calibration device, placing a CCD screen at a distance of 80-120m from the illumination mechanism 40, wherein the rotary calibration device drives the illumination mechanism 40 to rotate and adjusts the position of the illumination mechanism 40 until the projection of the rotating illumination mechanism 40 in the CCD screen varies from a ring to a circular point;The CCD screen is connected to a computer to obtain accurate images, and the milling machine then performs a milling operation for the end surface of the annular protruding mounting section 44 of the lighting mechanism 40 after the angle adjustment, so that the end surface of the annular protruding mounting section 44 is aligned parallel to the XY plane, thereby ensuring that the end surface of the annular protruding mounting section 44 is aligned perpendicular to the optical axis of the light beam emitted by the light source 42; E. Securing the ball bearing 212 in the ball bearing mounting seat 211, securing the rigid spacer bolt 22 in the cover body 21 using a sealing adhesive, securing the cover body 21 in the milling machine using the ball bearing 212 in conjunction with a clamping device, subsequent milling of the end surface of the rigid spacer bolt 22 by the milling machine, so that the end surface of the rigid spacer bolt 22 is aligned parallel to the XY plane, thereby ensuring that the axis center of the ball bearing 212 is aligned vertically to the end surface of the rigid spacer bolt 22, and that the end surfaces of all rigid spacer bolts 22 are coplanar; D. By aligning the end face of the mounting projection 31 with the end face of the annular projecting mounting section 44, securing the lighting mechanism 40 in the fixed seat of the lighting mechanism 30 by screws, mounting the rotary mechanism in the ball bearing 212, attaching the refraction mechanism 60 to an output end of the rotary mechanism, wherein the end face of the connecting screw bolt 12 bears relative to the end face of the rigid spacer bolt 22, and wherein the cover body 21 is secured in the motion holder 11 by screws, the level control mechanism can effectively adjust the level of a laser beam emitted through the entire device.

[0024] In the present invention, the motion holder 11 performs surface treatment for the mounting projection 31 in the mounting seat of the lighting mechanism 30 only after the level control mechanism has been attached. This effectively ensures that the control results of the level control mechanism can be directly fed back to the mounting projection 31, preventing assembly deviations and / or inherent problems of the mounting part from causing significant deviations. The lighting mechanism 40 and the cover body 21 are also pre-assembled, and then the mounting surface is treated. This significantly reduces deviations at various points of the entire device, so that the finished product requires no adjustment and can be used immediately. Furthermore, the laser alignment plane emitted by the entire device has high precision.

[0025] To further improve the accuracy of the level control mechanism adjustment performed for the lighting mechanism 40, in the present embodiment, in steps C and D, the diameter of the end surface of the mounting projection 31 p, where the length of the cutting edge of the milling cutter in the milling machine is L, and where p≤L, and where the width of the end surface of the annular protruding mounting section 44 is q, and where q≤L, can thus ensure that the milling cutter forms the mounting projection 31 and the annular protruding mounting section 44 by milling only once, in order to avoid the formation of a connecting surface by milling multiple times and thus impairing the accuracy of the end surface.

[0026] In the present embodiment, in steps C, D, and E, the outer diameter of a plane to be milled is designed using the following formula: j = i / tank, where i represents the machining accuracy of the milling machine, which is typically 0.01 mm or 0.005 mm; j represents the outer diameter of the machining plane, more precisely, the diameter of the cutter's rotation or the diameter of the machining plane's rotation; and k represents the machining and forming accuracy. The machining accuracy of the milling machine is selected according to actual requirements to ensure that the final machining and forming accuracy meets the criteria of 0 ≤ k ≤ 37 inches, and then the outer diameter of the plane to be machined is designed.

[0027] Preferably, in steps C and D, the diameter of the (31) end face of the mounting projection p is the length of the cutting edge of the milling cutter in the milling machine L, and p ≤ L, and the width of the (44) end face of the annular projecting mounting section q is the width of the end face of the annular projecting mounting section q, and q ≤ L. It should be noted that the person skilled in the art can implement several variations and improvements without departing from the concept of the present invention, and these are to be considered as being covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention is to be defined by the claims. Reference symbol list 10 Movement arrangement 11 motion holders 12 connecting bolts 13 X-axis spirit level vials 14 Y-axis spirit level vial 15 Z-axis spirit level vials 20 Lid arrangement 21 lid body 211 Ball bearing mounting seat 212 ball bearings 22 rigid spacer bolts 30 Mounting seat for light mechanism 31 Assembly lead 311 first screw hole 40 Lighting mechanism 41 Light source support bracket 42 Light source 43 Mounting plate 44 ring-shaped protruding mounting section 441 second screw hole 51 hollow rotary shaft 52 Turntable 521 Coding plate 53 warehouses 54 Rotary drive motor 55 belts 60 Refraction mechanism 71 Ball limiting block 72 Grid plate 721 Discharge notch 73 Snap-in mechanism

Claims

[1] Laser leveling device without physical adjustment, comprising a movement arrangement (10) and a cover arrangement (20) which are rigidly connected to each other, wherein the motion arrangement (10) comprises a motion holder (11) to which at least three connecting screw bolts (12) are attached, wherein an X-axis spirit level (13), a Y-axis spirit level (14) and a Z-axis spirit level (15) are arranged on the motion holder (11), and wherein the cover arrangement (20) comprises a cover body (21) in which rigid spacer bolts (22) are attached to the cover body (21) by means of a sealing adhesive, wherein the number of rigid spacer bolts (22) corresponds to the number of connecting screw bolts (12), the rigid spacer bolts (22) protrude from the cover body (21) and the rigid spacer bolts (22) and the connecting screw bolts (12) are connected to each other by screws; and wherein a mounting seat (30) for a lighting mechanism (40) is further attached to the motion holder (11), wherein the lighting mechanism (40) is attached to the mounting seat (30) for the lighting mechanism (40) by screws, and wherein at least three mounting projections (31) are arranged on the mounting seat (30) for the lighting mechanism (40), wherein a first screw hole (311) extends through an associated mounting projection (31) and the motion holder (11), and wherein the lighting mechanism (40) comprises a light source support shell (41) in which a light source (42) is mounted, and wherein an annular projecting mounting section (44) is attached to a side of the mounting plate (43) facing away from the light emission of the light source (42), wherein a gap is provided between the inner ring of the annular projecting mounting section (44) and the light source support shell (41),and wherein a number of second screw holes (441) corresponding to the number of mounting projections (31) are provided in the annular projecting mounting section (44), the second screw holes (441) extending through the mounting plate (43) and the positions of the second screw holes (441) being aligned with the positions of the first screw holes (311); , and wherein a ball bearing mounting seat (211) is arranged on the lid body (21) in which a ball bearing (212) is attached, wherein a rotary mechanism is arranged in the ball bearing (212), and wherein a breaking mechanism (60) is attached at an output end at the upper end of the rotary mechanism; and wherein the end faces of the connecting screw bolts (12), the end faces of the rigid spacer bolts (22), the end face of the mounting projection (31) and the end face of the annular protruding mounting section (44) are each aligned parallel to an XY plane, and wherein the optical axis of the light source (42) and the center of rotation of the rotary mechanism are each aligned parallel to a Z axis, while the optical axis of the light source (42) and the center of rotation of the rotary mechanism are coaxial to each other. [2] Laser leveling device without physical adjustment according to claim 1, wherein the mounting projections (31) protrude by a height of 0.5-1 mm on the mounting seat (30) for the lighting mechanism (40) and all mounting projections (31) are internally tangentially distributed in a circle with a diameter of P, wherein P≥27mm. [3] Laser leveling device without physical adjustment according to claim 1, wherein the annular protruding mounting section (44) protrudes by a height of 3.5-4 mm from the mounting plate (43), wherein the diameter of the outer ring of the annular protruding mounting section (44) is greater than or equal to 27 mm. [4] Laser leveling device without physical tuning according to claim 1, wherein the rotary mechanism comprises a hollow rotary shaft (51), wherein a rotary plate (52) is attached to a first end of the hollow rotary shaft (51) facing the motion arrangement (10), a second end of the hollow rotary shaft (51), opposite to the first end, forms an output end of the rotary mechanism, the hollow rotary shaft (51) is installed in the ball bearing (212) by means of a bearing (53), the rotary mechanism further comprises a rotary drive motor (54), and an output end of the rotary drive motor (54) is connected to the rotary plate (52) by a belt (55). [5] Laser leveling device without physical tuning according to claim 4, wherein the radius of the cylindrical inner cavity of the hollow rotating shaft (51) is R and the radius of a light beam emitted by the light source (42) is r, where r≤R applies. [6] Laser leveling device without physical tuning according to claim 4, wherein a coding plate (521) is attached to the rotating plate (52), a photoelectric sensor is arranged in the cover body (21), and an induction section of the photoelectric sensor is assigned exactly to the coding plate (521). [7] Laser leveling device without physical adjustment according to claim 1, wherein a ball limiting block (71) is connected to a ball end of the ball bearing (212), a locking plate (72) is arranged between the ball limiting block (71) and the cover body (21), a bottle gourd-shaped discharge notch (721) is provided on the locking plate (72), a section of the discharge notch (721) with a smaller radius is located in the center of the locking plate (72) and the locking plate (72) is connected to the cover body (21) by a locking connection mechanism (73). [8] Method for assembly and processing of a laser leveling device without physical adjustment according to any one of claims 1 to 7, comprising the following steps: A. Obtaining a motion holder (11), a cover body (21) and a lighting mechanism (40) by machining; B. Attaching the X-axis spirit level vial (13), the Y-axis spirit level vial (14) and the Z-axis spirit level vial (15) in the motion holder (11); C. Placing the motion holder (11) in a milling machine, leveling the motion holder (11) by means of the X-axis spirit level (13), the Y-axis spirit level (14) and the Z-axis spirit level (15), milling the end surface of the connecting screw bolt (12) and the end surface of the mounting projection (31) by the milling machine, so that the end surface of the connecting screw bolt (12) and the end surface of the mounting projection (31) are each aligned parallel to the XY plane; D. Clamping the lighting mechanism (40) in a rotary calibration device, placing a CCD screen at a distance of 80-120m from the lighting mechanism (40), wherein the rotary calibration device drives the lighting mechanism (40) to rotate and adjusts the position of the lighting mechanism (40) until the projection of the rotating lighting mechanism (40) in the CCD screen varies from a ring to a round point, and wherein the milling machine then performs a milling operation for the end face of the annular protruding mounting section (44) of the lighting mechanism (40) after the angle adjustment, such that the end face of the annular protruding mounting section (44) is aligned parallel to the XY plane; E. Securing the ball bearing (212) in the ball bearing mounting seat (211), securing the rigid spacer bolt (22) in the cover body (21) by means of a sealing adhesive, securing the cover body (21) in the milling machine by means of the ball bearing (212) using a clamping device, subsequent milling of the respective end face of the rigid spacer bolt (22) by the milling machine, so that the end face of the respective rigid spacer bolt (22) is aligned parallel to the XY plane; F. Relatively positioning the end faces of the mounting projections (31) against the end face of the annular protruding mounting section (44), securing the lighting mechanism (40) in the mounting seat (30) for the lighting mechanism (40) by screws, mounting the rotary mechanism in the ball bearing (212), attaching the breaking mechanism (60) to an output end of the rotary mechanism, wherein the end face of the connecting screw bolt (12) rests relative to the end face of the rigid spacer bolt (22), and wherein the cover body (21) is secured in the motion holder (11) by screws. [9] Method for assembly and machining of a laser leveling device without physical adjustment according to claim 8, wherein in steps C and D the diameter of the end faces of the mounting projections (31) is p, the length of the cutting edge of the milling cutter in the milling machine is L, and wherein p≤L, and wherein the width of the end face of the annular projecting mounting section (44) is q, and wherein q <L ist. [10] Method for assembly and processing of a laser leveling device without physical adjustment according to claim 8, wherein in steps C, D and E the outer diameter of a plane to be milled is specified by the following formula j=i / tank, where i represents the machining accuracy of the milling machine, j represents the outer diameter of the machining plane and k represents the accuracy of the machining and forming, and where 0≤k≤37" applies.

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