Rotating laser with drive unit

Abstract

The invention relates to a rotary laser having a housing in which a drive unit for a rotary laser beam is arranged, the drive unit having a stator (310) and a rotor for rotary driving a main shaft (125), the stator (310) forming an interior accommodation (311) which is provided with a fixed accommodation (312), wherein the main shaft (125) is fixed in the interior accommodation (311) along a longitudinal extension direction (201) of the main shaft by means of a fixing element (221) arranged in the fixed accommodation (312).

Description

Technical Field

[0001] The present invention relates to a rotating laser having a housing in which a drive unit for rotating a laser beam is arranged, the drive unit having a stator and a rotor for rotatably driving a spindle. Background Technology

[0002] A rotating laser is known from the prior art, which has a drive unit for rotating a laser beam. The drive unit is arranged in the housing of the rotating laser. Here, the drive unit has a stator and a rotor for rotatably driving a main shaft. Summary of the Invention

[0003] The present invention relates to a rotating laser having a housing in which a drive unit for rotating a laser beam is arranged, the drive unit having a stator and a rotor for rotatably driving a main shaft. The stator forms an internal receiving portion having a fixed receiving portion, wherein the main shaft is fixed in the internal receiving portion along the longitudinal extension direction of the main shaft by means of a fixing element arranged in the fixed receiving portion.

[0004] Therefore, the present invention can provide a rotating laser in which the main shaft can be securely and reliably fixed in the internal storage portion in the axial direction by means of the internal storage portion having a fixed receiving portion and a fixing element.

[0005] Preferably, the spindle is supported in the internal compartment by two bearing elements.

[0006] Therefore, stable and robust support of the spindle within the internal compartment can be achieved simply and without complexity.

[0007] The spindle is preferably connected to a magnet carrier that covers the internal housing and has at least one slot to allow access to a fixing element arranged in the fixing housing.

[0008] Therefore, the spindle can be fitted with a suitable magnet carrier in a simple manner.

[0009] Preferably, a spacer element is provided that separates the two bearing elements from each other along the longitudinal extension direction of the spindle.

[0010] Therefore, a safe and reliable spacing can be formed between the two bearing elements.

[0011] Preferably, at least one of the two bearing elements is press-fitted onto the outer periphery of the spindle and / or at least one of the two bearing elements is press-fitted into a bearing portion belonging to the internal housing.

[0012] Therefore, it is possible to arrange at least one of the two bearing elements on the spindle and / or on the internal housing of the stator in a simple manner.

[0013] Preferably, in the internal housing, the bearing portion belonging to one free end of the spindle has a contact surface for contacting one of the two bearing elements belonging to the bearing portion along the longitudinal extension direction of the spindle.

[0014] Therefore, it is possible to achieve a safe and robust arrangement of bearing components in the bearing area.

[0015] Preferably, the bearing element of the two bearing elements that is associated with one free end of the spindle is fixed to the spindle along the longitudinal extension direction of the spindle by means of an additional fixing element.

[0016] Therefore, it is easy and simple to secure the second bearing element.

[0017] Preferably, along the longitudinal extension direction of the main shaft, at least one spring element is arranged between the fixed element or additional fixed element and the corresponding bearing element of the two bearing elements.

[0018] Therefore, the fastening elements and / or additional fastening elements can be pre-tightened in a simple manner.

[0019] Preferably, at least one slot is constructed in the stator, the slot being arranged perpendicular to the internal receiving portion, wherein a clamping connection is formed between a clamping element belonging to the at least one slot and the outer periphery of one of the two bearing elements.

[0020] Therefore, an alternative method of fixing bearing elements can be easily and uncomplicated.

[0021] Furthermore, the present invention also relates to a method for assembling a spindle in the stator of a rotating laser according to the above description. The method includes the following steps: - Arrange the fixing elements on the area of ​​the spindle facing the magnet carrier. - Arrange two bearing elements and a spacer element on the outer circumference of the spindle. - Arrange the spindle within the stator's internal storage compartment, and - The fixing element is arranged in the fixing housing of the stator.

[0022] Therefore, the present invention provides a method for assembling a spindle in the stator of a rotating laser, wherein the spindle can be securely and reliably fixed along its longitudinal extension direction by means of a receiving portion having a fixing portion and fixing elements.

[0023] Preferably, at least one of the two bearing elements is press-fitted onto the outer periphery of the spindle and / or at least one of the two bearing elements is press-fitted into the bearing portion belonging to the internal storage section.

[0024] Therefore, a safe and reliable arrangement of at least one of the two bearing elements can be achieved. Attached Figure Description

[0025] The invention is described in more detail below with reference to embodiments shown in the accompanying drawings. These drawings illustrate: Figure 1 A perspective view of a rotating laser with a driving unit according to the present invention. Figure 2 Assigned to Figure 1 An exploded perspective view of the drive unit's spindle and the bearing assembly associated with the spindle. Figure 3 : Figure 2 The longitudinal section of the bearing assembly of the spindle in the assembled state. Figure 4 View from the free end of the spindle Figure 2 and Figure 3 A schematic diagram of the bearing assembly. Figure 5 It has a calculation unit and a beam deflector. Figure 1 A three-dimensional view of the drive unit. Figure 6 : Figure 5 The longitudinal section of the drive unit, Figure 7 :have Figures 2 to 6 The unit of determination Figure 5 and Figure 6 A three-dimensional view of the main axis. Figure 8 Assigned to Figures 1 to 7 A top view of the circuit board of the drive unit. Figure 9 It has a toothed disc and Figure 1 , Figure 5 and Figure 6 beam deflector Figures 2 to 8 A three-dimensional view of the main axis. Figure 10 : Spindle bearing assembly and Figure 9 The longitudinal section of the gear disc, Figure 11 : Alternative fixing method with bearing assembly Figures 1 to 10 The longitudinal section of the drive unit, Figure 12 :have Figure 1 , Figures 5 to 7 and Figures 9 to 11 A three-dimensional view of the principal axis of the element. Figure 13 : With absolute encoder Figure 8 Top view of the circuit board. Figure 14 ac: Figures 1 to 7 and Figures 9 to 12 A top view of the main shaft, which has Figure 8 The circuit board and during the calibration process Figure 1 , Figure 5 , Figure 6 and Figure 9 Beam deflector, Figure 15 ad: Features a circuit board and a beam deflector Figure 14 a to Figure 14 The principal axis of c is Figure 1 A top view of the rotating laser during absolute positioning at startup. Figure 16 : Figure 1 The local longitudinal section of the rotating laser, Figure 17 : with a cap Figure 1 , Figure 5 , Figure 6 , Figure 9 , Figure 14 a to Figure 16 Exploded view of the beam deflector Figure 18 : Figure 17 A cross-sectional view of the beam deflector at maximum deflection. Figure 19 : Figure 1 , Figure 5 , Figure 6 , Figure 9 , Figure 14 a to Figure 18 A three-dimensional view of the beam deflector, and Figure 20 : Figure 18 A cross-sectional view of the beam deflector at maximum deflection without a cap.

[0026] In the accompanying drawings, elements with the same or similar functions are given the same reference numerals and are described in detail only once. Detailed Implementation

[0027] Figure 1 An exemplary rotating laser 100 is shown, which has a housing 110 in which a laser unit 130 with a laser diode 135 is arranged for generating a laser beam. Figure 14(1210 in the original text). In the context of this invention, "rotating laser" can also be understood as a building laser or a leveling laser. Furthermore, a drive unit 120 for rotatably driving the main shaft 125 is exemplarily arranged in the housing 110. Preferably, the drive unit 120 is configured as an electric motor.

[0028] The laser unit 130 is arranged on the main shaft 125 as shown in the figure, such that the laser beam generated by the laser unit 130 is rotated by the main shaft 125. Figure 14 The main shaft 125 (1210) rotates within a corresponding plane. For this purpose, the main shaft 125 is preferably equipped with a rotating head 160 having a beam deflector 165. The beam deflector 165 is preferably configured to deflect the laser beam, thereby causing the laser beam ( Figure 14 The laser beam 1210 projects onto the associated plane. Depending on the type of structure of the rotating laser 100, the projected plane may extend horizontally, vertically, or, for example, at a defined angle to the Earth's surface. Furthermore, the beam deflector 165 may be configured as a beam splitter, thereby allowing the laser beam to be projected not only onto the plane but also emitted in a direction perpendicular to the plane.

[0029] Furthermore, an electronic unit 190 with an adjustment and monitoring device 195 is preferably arranged in the housing 110. The adjustment and monitoring device 195 is preferably configured to adjust the laser power of the laser unit 130 according to the corresponding operating mode. Here, the rotational speed of the spindle 125 of the drive unit 120 is controlled or adjusted. For this purpose, the spindle 125 is preferably equipped with a calculation unit 170.

[0030] For example, the housing 110 is equipped with a cage-like member 112 associated with the rotating head 160 to prevent the rotating head 160 from being impacted.

[0031] The electronic unit 190, as shown in the diagram, includes an operation unit 150, which has a display 151 and an input unit 152. The operation unit 150 is preferably connected to the electronic unit 190, and particularly to the adjustment and monitoring device 195, in terms of control or adjustment technology. The input unit 152 preferably includes at least one keypad area. Alternatively, the input unit 152 may have a knob, touchscreen, slider, remote control, etc. Through the input unit 152, the user can, for example, input the rotational speed of the spindle 125. Alternatively, in at least one operating mode, the rotational speed of the laser unit 130 can be automatically adjusted.

[0032] Preferably, the rotating laser 100 has a leveling unit 180. The leveling unit 180 preferably has at least one tilt sensor 184 configured to determine the tilt of the rotating head 160, particularly the beam deflector 165, and / or the laser unit 130, relative to a predetermined direction, preferably a horizontal or vertical line. Furthermore, the leveling unit 180 preferably has at least one tilt adjustment motor 182 configured to orient the rotating head 160, particularly the beam deflector 165, and / or the laser unit 130, according to the orientation determined by the at least one tilt sensor 184, preferably the tilt of the laser unit 130 and / or the rotating head 160 relative to a vertical line.

[0033] Figure 2 Show Figure 1 The rotating laser 100 has a drive unit 120 with a main shaft 125. The main shaft 125 has a first end, shown as an upper end 203 in the diagram, and a second end, shown as a lower end 204 in the diagram. Preferably, a [missing information - likely a component or part] is arranged at the first end 203. Figure 1 The beam deflector 165. At the second end 204, the main shaft 125 is supported on the stator by a bearing assembly 200. Figure 3 (310) in the middle.

[0034] Preferably, the bearing assembly 200 includes two bearing elements 231 and 232, through which the main shaft 125 is supported on the stator ( Figure 3 In section 310), a spacer element 240 is preferably provided, which spacees the two bearing elements 231, 232 apart from each other along the longitudinal extension direction 201 of the main shaft 125.

[0035] Preferably, the spindle 125 is equipped with a fixing element 221 for fixing or fastening the spindle 125 along its longitudinal extension direction 201 to the stator. Figure 3 On the second end 204 of the spindle 125, the bearing element 232 of the two bearing elements 231, 232 belonging to this end is preferably secured to the spindle 125 by means of an additional fixing element 250 along the longitudinal extension direction 201 of the spindle 125. Preferably, the spindle 125 has a receiving portion 212 at its second end 204 for accommodating the additional fixing element 250.

[0036] Preferably, the main shaft 125 has a magnet carrier 215. Preferably, the main shaft 125 is connected to the magnet carrier 215. Here, the magnet carrier 215 is arranged on the outer periphery 211 of the main shaft 125 and extends the main shaft 125 along the radial direction 202. Preferably, the magnet carrier 215 is constructed in a disk shape. Figure 2The magnet carrier 215 is integrally constructed with the main shaft 125. An abutment edge 219 is formed on the side of the magnet carrier 215 facing the second end 204 of the main shaft 125.

[0037] Preferably, along the longitudinal extension direction 201 of the main shaft 125, at least one spring element 222, 223 is arranged between the fixing element 221 and / or the additional fixing element 250 and a corresponding bearing element 231, 232 of the two bearing elements 231, 232. In the figure, two spring elements 222, 223 are arranged between the fixing element 221 and the bearing element 231. Spring element 222 has an outer diameter 225 and an inner diameter 227. Spring element 223 has an outer diameter 226. The inner diameter of spring element 223 preferably matches the diameter of the main shaft 125. Preferably, the inner diameter 227 of spring element 222 is larger than the outer diameter 226 of spring element 223. The fixing element 221 and / or the additional fixing element 250 can be configured as a retaining ring, for example.

[0038] Figure 3 Showing the use of Figure 2 The bearing assembly 200 is supported in the configuration of the bearing assembly 200. Figure 1 The stator 310 of the drive unit 120 Figure 1 and Figure 2 The main shaft 125. The stator 310 exemplarily includes a cylindrical base 318 having a content reception portion 311. In the figure, a bearing assembly 200 for supporting the main shaft 125 is arranged in the content reception portion 311.

[0039] Preferably, at least one of the two bearing elements 231, 232 is press-fitted onto the outer periphery 211 of the spindle 125 and / or at least one of the two bearing elements 231, 232 is press-fitted into the bearing portions 314, 315 belonging to the internal housing 311. This eliminates, at least substantially, within normal manufacturing tolerances, the clearance between the spindle 125 and the associated bearing elements 231, 232.

[0040] In the diagram, the upper bearing portion 314 is associated with the bearing element 231, and the lower bearing portion 315 is associated with the bearing element 232. Preferably, in the internal housing 311, the bearing portion 315, which is associated with the second end or free end 204 of the main shaft 125, has a contact surface 316 for abutting the bearing element 232 associated with the bearing portion 315 along the longitudinal extension direction 201 of the main shaft 125.

[0041] Bearing elements 231 and 232 are preferably constructed as ball bearings. Here, bearing element 231 preferably has an inner ring 266 and an outer ring 265. The outer ring 265 forms the outer periphery 261 of bearing element 231, and the inner ring 266 forms the inner periphery 262 of bearing element 231. Similarly, bearing element 232 preferably has an inner ring 268 and an outer ring 267. The outer ring 267 forms the outer periphery 263 of bearing element 232, and the inner ring 268 forms the inner periphery 264 of bearing element 232. In the diagram, the inner periphery 262 and inner periphery 264 of bearing element 231 are arranged on the outer periphery 211 of the spindle 125. Furthermore, the outer periphery 261 of bearing element 231 is arranged on bearing portion 314, and the outer periphery 263 of bearing element 232 is arranged on bearing portion 315.

[0042] As described above, a spacer element 240 is exemplarily arranged between two bearing elements 231, 232. The spacer element 240 is preferably sleeve-shaped and has a receiving portion 341. The receiving portion 341 is arranged on the outer periphery 211 of the main shaft 125. In the figure, the outer ring 267 of the bearing element 232 abuts against the contact surface 316 of the receiving portion 311 of the stator 310 along the longitudinal extension direction 201 of the main shaft 125. Preferably, the inner ring 268 of the bearing element 232 abuts against the fixing element 250 in a circumferential direction. Preferably, the end face 342 of the spacer element 240 facing the bearing element 232 abuts against the bearing element 232. In the figure, the end face 342 of the spacer element 240 abuts against the inner ring 268 of the bearing element 232. Furthermore, the end face 344 of the bearing element 231 facing the spacer element 240 is exemplary abutting against the end face 343 of the spacer element 240 facing the bearing element 231. In the figure, the inner ring 266 of the bearing element 231 abuts against the end face 343 of the spacer element 240.

[0043] Preferably, as described above, two spring elements 222 and 223 are arranged between the fixing element 221 and the bearing element 231. Preferably, the spring elements 222 and 223 are arranged coaxially with each other. Alternatively or optionally, a spring element 222 may be arranged between the bearing element 232 and the additional fixing element 250 below the figure, or at position 322, and / or a spring element 223 may be arranged at position 323. Preferably, at least one of the two spring elements 222 and 223 is constructed as a wave spring. Tolerance compensation along the longitudinal extension direction 201 of the main shaft 125 is preferably achieved by the spring elements 222 and 223.

[0044] It should be noted that when the two bearing elements 231 and 232 are arranged on the main shaft 125 by means of the press fit between the inner circumferences 262 and 264 of the bearing elements 231 and 232 and the outer circumference 211 of the main shaft 125, the spring element 223, the spacer element 240, and the additional fixing element 250 can be omitted, because in this case, the inner rings of the bearing elements 231 and 232 are fixed relative to each other along the longitudinal extension direction 201 of the main shaft 125 and thus no longer require corresponding tolerance compensation.

[0045] Preferably, the stator 310's internal storage portion 311 has a fixed receiving portion 312 configured to receive a fixing element 221. Preferably, the fixing element 221 is arranged in the fixed receiving portion 312. Thus, the spindle 125 can be fixed or secured in the internal storage portion 311 by means of the fixing element 221 along the longitudinal extension direction 201 of the spindle, or in the axial direction of the spindle. Here, the bearing element 231 preferably rests against the fixing element 221, and therefore the spindle 125 is fixed in the internal storage portion 311 along its longitudinal extension direction 201, or in its axial direction.

[0046] also, Figure 3 The magnetic carrier 215 of the main shaft 125 is shown in the diagram, which exemplarily covers at least the content receiving portion 311 along the radial direction 202 of the main shaft 125. In the diagram, the magnetic carrier 215 extends beyond the stator 310 in the radial direction 202 of the main shaft 125. Preferably, the magnetic carrier 215 has at least one slot 399 to allow access into the content receiving portion 311 of the stator 310. Preferably, the at least one slot 399 allows access to a fixing element 221 that can be fixed in a fixing receiving portion 312.

[0047] When assembling the spindle 125 into the stator 310, it is preferable to first arrange the fixing element 221 on the region of the spindle 125 facing the magnet carrier 215. Subsequently, two preferred bearing elements 231, 232 and a spacer element 240 can be arranged on the outer periphery 211 of the spindle 125. Preferably, at least one of the two bearing elements 231, 232 is press-fitted onto the outer periphery 211 of the spindle 125 and / or at least one of the two bearing elements 231, 232 is press-fitted into the bearing portions 314, 315 belonging to the internal receiving portion 311. Afterwards, it is preferable to arrange the spindle 125 in the internal receiving portion 311 of the stator 310. Finally, the fixing element 221 can be arranged in the fixing receiving portion 312 of the stator 310. Preferably, using a tool, the fixing element 221 is moved through the slot 399 of the magnet carrier 215 from the region of the spindle 125 facing the magnet carrier 215 into the fixing receiving portion 312. Preferably, before the bearing elements 231, 232 and the spacer element 240 are arranged on the spindle 125, an additional fixing element 250 is arranged and secured in a receiving portion 212 at the end 204 of the spindle 125.

[0048] The force flow through bearing elements 231 and 232 is indicated by arrow 301 in the diagram. Preferably, the force flow acting on the fixing element 221 passes through spring element 222, which preferably has a larger inner diameter 227 than spring element 223. Here, the force flow is preferably not compensated by spring element 223. Instead, the force flow is preferably guided through spring element 222 to the outer ring 265 of the upper bearing element 231 in the diagram. On the inner ring 266 of bearing element 231, the force flow is preferably guided into spacer element 240 through the end face 343 of spacer element 240 facing bearing element 231. The force flow is preferably guided into the inner ring 268 of bearing element 232 through the end face 342 facing the lower bearing element 232 in the diagram. Alternatively, the force flow can be transmitted via a press fit between the inner circumference 262 of the inner ring 266 and the outer circumference 211 of the main shaft 125, and via a press fit between the outer circumference 211 of the main shaft 125 and the inner circumference 264 of the inner ring 268. Finally, the force flow is preferably directed into the stator 310 via the outer ring 267 of the bearing element 232.

[0049] Figure 4 The main shaft 125 with magnet carrier 215 is shown as viewed from the first end 203. Figure 3 Stator 310. Here, Figure 4 The diagram visually illustrates at least one of the magnet carrier 215, shown as two slots 399, for extending into the internal receiving portion 311 of the stator 310 to position the fixing element 221. Figure 3The contents of the receiving portion 311 are housed in the fixed receiving portion 312. In the illustration, the slot 399 is at least approximately arc-shaped. Two exemplary slots 399 are arranged diametrically opposite each other in the illustration.

[0050] Figure 5 Showing has Figures 1 to 4 stator 310 and Figure 1 The main shaft 125 of the beam deflector 165. Figure 1 The drive unit 120 preferably has a stator 310 and a rotor 460 for rotatably driving the spindle 125. Preferably, the drive unit 120 is configured as a spindle motor. Here, the drive unit 120 is preferably configured as a brushless DC motor.

[0051] The rotor 460 is exemplarily equipped with a magnet disk 440, and the stator 310 is exemplarily equipped with two coils ( Figure 6 551 in the middle). By adjusting the coil ( Figure 6 (551) When energized, the spindle 125 can rotate or be subjected to a holding torque for static positioning.

[0052] Figure 1 The laser diode 135 is preferably disposed on the end 402 of the stator 310 opposite to the beam deflector 165. Here, the laser beam generated by the laser diode 135 is guided along the inner notch 209 of the main axis 125 toward the beam deflector 165, as shown in the diagram. The laser beam is deflected by the beam deflector 165. Preferably, the beam deflector 165 is constructed as a pentaprism. A pentaprism, also called a pentagonal prism, is understood as a five-faceted optical prism. Here, two of the five faces are used as internal reflecting surfaces. Preferably, the laser beam is deflected in the vertical direction. Therefore, by rotating the main axis 125, an associated plane can be projected when the laser beam is deflected. Furthermore, the beam deflector 165 can be configured as a beam splitter that splits the laser beam generated by the laser diode 135 into a parallel laser beam (emitted upward along the longitudinal extension direction 201 in the diagram) and a vertical laser beam.

[0053] Preferably, the spindle 125 is equipped with Figure 1 The calculation unit 170. The calculation unit 170 exemplarily includes a gear disk 430 and a grating ( Figure 6 (560 in the figure). The toothed disk 430 has a base 431 in the figure. Preferably, the base 431 is constructed as a bowl shape with a receiving portion 433. The receiving portion 433 is preferably constructed to at least partially receive the magnet disk 440. Preferably, the toothed disk 430 has teeth 432 arranged in a circumferential direction 401. Here, the teeth 432 are constructed on the outer periphery of the toothed disk 430 in the figure along the longitudinal extension direction 201 of the main axis 125.

[0054] Preferably, the obtaining unit 170 has a reference mark 434 as an absolute reference. The reference mark 434 is preferably associated with the toothed disk 430. The reference mark 434 may be constructed, for example, as a reference tooth or a reference slot. Here, the teeth 432 of the toothed disk 430 have a first width 435, and the reference tooth 434 or reference slot has a second width 436. The second width 436 is preferably greater than the first width 435.

[0055] The magnet disk 440 preferably has a base 441 that is at least partially annular. The annular base 441 shown in the figure preferably has a content receiving portion 442. The content receiving portion 442 is preferably arranged on the inner shoulder of the magnet carrier 215 of the main shaft 125. Figure 6 On (536) in the middle. Alternatively, the magnet disk 440 may have at least two magnet elements. Preferably, the magnet disk 440 is constructed as a permanent magnet with N pole pairs. The magnet carrier 215 of the main shaft 125 and the toothed disk 430 may be constructed integrally.

[0056] In the diagram, the spindle 125 has a rotating head 160 with a beam deflector 165 at its end 203 opposite to the stator 310. The beam deflector 165 exemplarily has a holding device 410 by which it is positioned on the end 203 of the spindle 125. For this purpose, the holding device 410 preferably has a fastening section 416 for placement on the first end 203 of the spindle 125. Preferably, the fastening section 416 is integrally constructed with the holding device 410. Alternatively, the fastening section 416 may be connected to the holding device 410. In the diagram, the fastening section 416 is arranged on the outer periphery 211 of the spindle 125. Preferably, the fastening section 416 is connected to the spindle 125. Furthermore, the holding device 410 has at least two, in the diagram four, receiving elements 411, 412, 413, and 414, which form a preferably centrally located receiving portion 415. The beam deflector 165 is preferably accommodated in the receiving portion 415. In the figure, the beam deflector 165 is accommodated in the receiving portion 415. Here, at least two receiving elements 411, 412, 413, 414 are preferably configured to mechanically fix the beam deflector 165 in the receiving portion 415.

[0057] The at least two receiving elements 411, 412, 413, and 414 are preferably configured as protrusions formed along the longitudinal extension direction 201 of the main shaft 125. The receiving elements 411, 412, 413, and 414 are preferably arranged opposite to the main shaft 125. In the diagram, the at least two receiving elements 411, 412, 413, and 414 are integrally constructed with the holding device 410. Alternatively, the at least two receiving elements 411, 412, 413, and 414 may be connected to the holding device 410.

[0058] The receiving portion 415 preferably has at least one, shown as two positioning surfaces 451, 452 in the diagram, for positioning the beam deflector 165. Positioning surfaces 451, 452 are preferably arranged on the bottom surface facing the main shaft 125. At least one, shown as two stops 417, 418, can be constructed on at least one end face 499 of the two positioning surfaces 451, 452. Stops 417, 418 are exemplary constructed along the longitudinal extension direction 201 of the main shaft 125 and form abutment edges for the beam deflector 165 in the diagram. Preferably, the receiving elements 411, 412, 413, 414 and / or stops 417, 418 are integrally constructed with the holding device 410. Preferably, the receiving elements 411, 412, 413, 414 and / or stops 417, 418 are connected to the holding device 410 via a connecting portion.

[0059] In the diagram, two receiving elements 411 and 413 are arranged on the left side of the beam deflector 165, and two receiving elements 412 and 414 are arranged on the right side of the beam deflector 165. Here, the receiving elements 411 and 413 on the left side and the receiving elements 412 and 414 on the right side are preferably spaced apart from each other in the lateral direction 498 relative to the end face 499. Alternatively or optionally, the beam deflector 165 is fixed in the receiving portion 415 by at least one adhesive connection.

[0060] Figure 6 The diagram shows a main shaft 125, a stator 310, a rotor 460, a beam deflector 165, and... Figure 5 The drive unit 120 of the calculation unit 170. Here, Figure 6 The grating 560, which is associated with the calculation unit 170, is shown in the diagram. The grating 560 is preferably configured to calculate the principal axis 125 in the circumferential direction 401 (…). Figure 5 The relative change of the angular position on ).

[0061] The grating 560 is preferably configured as a quadrature encoder. This quadrature encoder preferably has two gratings, which are preferably aligned in the circumferential direction 401 (…). Figure 4 The gratings are arranged offset from each other by half a tooth width, or half a first width 435. Alternatively, this offset can be half a tooth width plus an integer multiple of the tooth width. The rotation direction can be gradually determined by measuring the tooth pattern associated with the tooth disk 430 at two positions with a phase difference of, for example, 90°. Preferably, two gratings are equipped with one light source. Furthermore, preferably two gratings are equipped with two preferably independent photodiodes or phototransistors.

[0062] The grating 560, as shown in the diagram, has a bottom surface 561 and a preferably U-shaped receiving portion 562. The teeth 432 of the gear disk 430 are preferably received at least partially in the U-shaped receiving portion 562. The bottom surface 561 of the grating 560, as shown in the diagram, is arranged on the lower side 541 of the circuit board 540 facing the gear disk 430.

[0063] Circuit board 540 is preferably arranged in Figure 1 The rotating laser 100 is housed in a housing 110. Here, the circuit board 540 is preferably arranged parallel to the gear 430. Exemplarily, the circuit board 540 has an inner slot 546 for coaxial arrangement on the spindle 125. The circuit board 540, as shown in the figure, has an upper side 542 and a lower side 541, the upper side being arranged towards the beam deflector 165; the lower side, exemplarily, is arranged towards the gear 430. Preferably, the circuit board 540 has two coils 551. The coils 551, as shown in the figure, are arranged on the lower side 541 of the circuit board 540. Preferably, the coils 551 are arranged on the circuit board 540 by means of a coil holding device 550. Preferably, the coil holding device 550 is fixed to the circuit board 540.

[0064] In the diagram, the internal storage portion 442 of the magnet disk 440 is arranged on the inner shoulder 536 of the magnet carrier 215. This allows for easy centering of the magnet disk 440. The magnet carrier 215 preferably has a circumferential flange 531 that extends radially from the magnet carrier 215. Furthermore, in the diagram, the magnet disk 440 abuts against the circumferential flange 531 along the longitudinal extension direction 201 of the main axis 125, or in other words, the magnet disk 440 is at least partially positioned on the upper side 599 of the circumferential flange 531 facing the beam deflector 165.

[0065] Preferably, the toothed disc 430 has an inner groove 521 arranged on the outer periphery 534 of the circumferential flange 531. Preferably, the receiving portion 433 and the circumferential flange 531, or the upper side 599 of the circumferential flange 531, form a receiving portion 598 for receiving the magnet disc 440. Furthermore, the magnet carrier 215, in the diagram, has a content receiving portion 533 facing the stator 310. The content receiving portion 533 is preferably configured to sectionally receive the stator 310. Preferably, the stator 310 and the content receiving portion 533 are arranged coaxially. Here, the outer periphery 597 of the stator 310 is preferably spaced apart from the content receiving portion 533 in the radial direction 202. Furthermore, the end face 596 of the stator 310 facing the magnet carrier 215 is preferably spaced apart from the magnet carrier 215. Therefore, the stator 310 can be arranged in… Figure 1 The rotating laser 100 is housed in a housing 110, and the spindle 125 can rotate without collision with the magnet carrier 215, thereby enabling a compact arrangement of the stator 310 and the magnet carrier 215 with a circumferential flange 531.

[0066] Preferably, the magnet disk 440 is fixed in the receiving portion 598 or 433 by means of a material-locking connection. Preferably, an adhesive 570 for exemplarily forming a material-locking connection is arranged between the lower side 449 of the magnet disk 440, which is exemplaryly associated with the magnet disk 440 and faces the toothed disk 430, and the bottom surface 439 of the toothed disk 430, which is shown in the figure, facing the magnet disk 440. Thus, the toothed disk 430 can also be fixed to the circumferential flange 531 of the magnet carrier 215. To form the exemplary material-locking connection, the adhesive 570 can be configured, for example, as double-sided tape.

[0067] also, Figure 6 The contents 511 of the fastening section 416 belonging to the retaining device 410 are illustrated by way of example. The contents 511 is preferably configured to be disposed on the outer periphery 211 of the spindle 125. Preferably, the spindle 125 has a receiving portion 512 at its upper end 203 (shown in the figure), which can be disposed within the contents 511 of the retaining device 410. Here, the contents 511 (shown in the figure) has the diameter of the outer periphery 211 of the receiving portion 512 belonging to the spindle 125.

[0068] Figure 7 The diagram shows a rotor 460, or toothed disc 430, a magnet disc 440, and a circuit board 540 with two coil holding devices 550. Figure 6 The main axis is 125. Here, Figure 7 The coaxial arrangement of circuit board 540 and spindle 125 is visually illustrated. The inner slot 546 of circuit board 540 and at least one slot 399 of the magnet carrier 215 of spindle 125 allow for fixing to the stator 310 (…). Figures 3 to 6 Fixed element 221 in ) Figures 2 to 6 Arranged in the fixed receiving part 312 ( Figure 3 )middle.

[0069] Figure 8 Shown from the bottom 541 Figure 5 and Figure 6 The circuit board 540. As described above, preferably two coils 551 are arranged on the lower side 541 of the circuit board 540 by means of a coil holding device 550. Furthermore, a grating 560 is preferably arranged on the lower side 541 of the circuit board 540. In the diagram, the two coils 551 are arranged offset from each other by 90°. Preferably, the grating 560 is arranged opposite to one of the two coils 551, i.e., offset from each other by 180°.

[0070] Figure 9 It shows a toothed disc 430 and Figure 5 and Figure 6 Beam deflector 165 Figures 1 to 8The spindle is 125. According to... Figure 9 The toothed disc 430 preferably has at least one first shape-locking element 632 at its inner groove 534, and the circumferential flange 531 of the magnet carrier 215 of the main shaft 125 has at least one second shape-locking element 631 on its outer periphery 534 in the figure. The at least one first and second shape-locking elements 632, 631 exemplarily form a shape-locking connection portion 630.

[0071] In the diagram, the first shape-locking element 632 of the gear disk 430 is configured as an extension along the radial direction 202 of the main shaft 125, while the second shape-locking element 631 of the magnet carrier 215 is configured as a groove along the radial direction 202 of the main shaft 125. Alternatively, the second shape-locking element 631 of the magnet carrier 215 is configured as an extension along the radial direction 202 of the main shaft 125, while the first shape-locking element 632 of the gear disk 430 is configured as a groove along the radial direction 202 of the main shaft 125. Furthermore, the gear disk 430 and the magnet carrier 215 may also have multiple first and second shape-locking elements 632, 631 arranged in a circumferential direction 401 of the main shaft 125.

[0072] Preferably, the spindle 125 has a flattened portion 621 at its first end 203 for positioning the beam deflector 165. The flattened portion 621 is preferably disposed on the receiving portion 512 of the spindle 125. The retaining device 410 for the beam deflector 165, as described above, preferably includes a fastening section 416 having a corresponding receiving portion 511. Preferably, the receiving portion 511 of the fastening section 416 has a flattened portion 611 corresponding to the flattened portion 621 of the spindle 125. Preferably, the flattened portion 611 of the receiving portion 511 of the retaining device 410 has a slot 613 in which a clamping element 612 is disposed. The slot 613 is formed along the radial direction 601 of the receiving portion 511 in the diagram. Preferably, the slot 613 is constructed as a threaded slot, and the clamping element 612 is a screw, particularly a countersunk screw.

[0073] If the retaining device 410 or the housing 511 of the beam deflector 165 is arranged on the receiving portion 512 of the spindle 125, then the two flattened portions 621, 611 are preferably arranged abutting against each other. Therefore, a defined positioning of the retaining device 410, and in particular the beam deflector 165, on the spindle 125 can be achieved. By screwing in the screw 612, the screw 612 can be loaded against the flattened portion 621 of the spindle 125, thus securing the beam deflector 165 to the spindle 125.

[0074] Figure 10 Show Figures 1 to 9 The spindle 125, as shown in the diagram, is aided by... Figure 2 , Figure 3 and Figure 6 The bearing assembly 200 is supported in the stator 310 and has Figures 5 to 7 and Figure 9 The gear 430. Figure 10 The gear 430 is shown in the diagram. Figures 2 to 6 and Figure 9 The magnet carrier 215 is integrally constructed. For this purpose, the magnet carrier 215 preferably has a support section 841 having a content receiving portion 837. The content receiving portion 837 is exemplarily arranged on the outer periphery 211 of the main shaft 125. To fix the position of the gear disk 430, or the magnet carrier 215, the main shaft 125 preferably has a circumferential flange 842 along its longitudinal extension direction 201. To fix the position of the gear disk 430, the support section 841 preferably abuts against a side 891 facing the first end 203 of the main shaft 125 along the longitudinal extension direction 201 of the main shaft 125.

[0075] Preferably, Figure 10 The toothed disk 430 forms a receiving portion 598 for accommodating the magnet disk 440. The receiving portion 442 of the magnet disk 440 is preferably arranged on an inner shoulder 536 of the magnet carrier 215, wherein, according to the one-piece construction of the toothed disk 430 and the magnet carrier 215, the inner shoulder 536 is attached to the toothed disk 430. Similar to... Figure 6 The magnet disk 440 is preferably fixed in the receiving portion 598 by means of an adhesive connection formed with the adhesive 570.

[0076] Figure 11 Showing has Figures 3 to 6 and Figure 10 stator 310 Figures 1 to 10 The main shaft 125. Preferably, the stator 310 has at least one slot 911, 913 arranged perpendicular to the inner receiving portion 311. At least one slot 911, 913 is arranged in the region of at least one bearing portion 314, 315 along the longitudinal extension direction 201 of the main shaft 125 in the diagram. Preferably, a clamping connection is formed between the clamping elements 912, 914 corresponding to at least one slot 911, 913 and the outer periphery 261, 263 of one of the two bearing elements 231, 232. Exemplarily, a first clamping connection is formed between the outer periphery 261 of the upper bearing element 231 in the diagram and the clamping element 912, and a second clamping connection is formed between the outer periphery 263 of the lower bearing element 232 in the diagram and the clamping element 914. Exemplarily, the clamping elements 912, 914 are constructed as screws, especially countersunk screws. The gap between the stator 310 and the associated bearing elements 231 and 232 can be eliminated at least substantially, i.e., within the normal manufacturing tolerances, by means of clamping elements 912 and 914.

[0077] also, Figure 11Visually Figure 1 The laser unit 130, as shown in the figure, has a laser module housing 960, which has an internal storage portion 961 for outputting or emitting a laser beam generated and collimated by the laser diode 135. The laser module housing 960 can be integrally constructed with the stator 310.

[0078] To collimate the laser beam, the laser unit 130 preferably includes a collimating lens 930. Here, the collimating lens 930 is preferably arranged and preferably fixed in the receiving section 931 (shown in the upper part of the diagram) of the internal storage portion 961 of the laser module housing 960. The collimating lens 930 is preferably fixed in the internal storage portion 961, or receiving section 931, by means of a material locking connection and / or a compression connection.

[0079] Furthermore, in the diagram, the laser diode holding device 940 is arranged in the internal storage portion 961, particularly in the receiving section 941 at the bottom of the diagram. Preferably, a clamping connection is formed at least sectionally between the outer periphery 949 of the laser diode holding device 940 and the receiving section 941. Alternatively, the laser diode holding device 940 can be fixed in the internal storage portion 961 or the receiving section 941 by a material locking connection.

[0080] The laser diode holding device 940, as shown in the figure, has a storage compartment 942. A laser diode 135 for generating a laser beam is preferably arranged in the storage compartment 942. The laser diode 135 is preferably arranged on a circuit board 950. Preferably, the circuit board 950 is constructed as a flexible circuit board. In the figure, the circuit board 950 is arranged on the lower side 948 of the laser diode holding device 940 away from the stator 310. Preferably, the circuit board 950 is fixed to the laser diode holding device 940 by means of a material locking connection. According to one embodiment, the material locking connection is an adhesive connection. Here, the adhesive is preferably double-sided tape.

[0081] The laser diode 135 is preferably equipped with a monitoring diode. The monitoring diode is preferably configured to measure the laser power associated with the laser diode 135. Here, the monitoring diode may be a monitoring diode integrated into the laser diode 135. Preferably, the laser unit 130 has a photodiode (not shown) configured to measure the laser power independently of the monitoring diode.

[0082] Figure 12 The diagram shows a toothed disk 430, a magnet disk 440, and a circuit board 540. Figures 1 to 11 The spindle 125, for better visual illustration, is shown in a transparent manner on the circuit board. According to Figure 12The toothed disk 430 has only teeth 432 arranged distributed on its outer periphery, these teeth having a first width 435. In the illustration, reference mark 434 is constructed on the magnet disk 440 as positioning mark 1000 and is associated with an absolute encoder ( Figure 13 The 1100 in the middle) is used for connection.

[0083] Here, mechanically defined orientation between the beam deflector 165, magnet disk 440, and toothed disk 430 is not required. Absolute positioning is preferably achieved by means of an additional component, such as a reflective light sensor, exemplarily in this case, an absolute encoder on circuit board 540. Figure 11 The positioning mark 1000 is in the form of 1100 in the magnetic disk 440 and is preferably a reflective or light-absorbing sticker.

[0084] The positioning mark 1000 is preferably configured to identify one of the pole pairs of the magnet disk 440. If the magnet disk 440 includes N pole pairs, the positioning mark 1000 must allow for the identification of an angular range with a width less than 360° / N. Preferably, the positioning mark 1000 has a width of 180° / N in the circumferential direction 401 of the spindle 125. Within each identified pole pair, by means of (in Figure 6 and Figure 8 The (electric) angle of the magnetic field generated by the coil 551 is precisely determined. This angle is preferably determined during the manufacturing process by positioning the spindle 125 at any angle within the positioning mark 1000 using the magnetic field of the coil.

[0085] Figure 13 Shown from the lower side 541 facing the magnet disk 440 Figure 5 , Figure 6 and Figure 12 The circuit board 540. As described above, preferably two coils 551 are arranged on the lower side 541 of the circuit board 540 by means of a coil holding device 550. Furthermore, a grating 560 is arranged on the lower side 541 of the circuit board 540 in the diagram. Additionally, [the following is associated with...] Figure 12 An absolute encoder 1100 for the positioning mark 1000 is exemplarily arranged on the lower side 541 of the circuit board 540.

[0086] Figure 14 a to Figure 14 c shows magnet disk 440 Figure 12 The positioning mark 1000 and the absolute encoder 1100 associated with the circuit board 540 ( Figure 11 An exemplary calibration process 1200 is described here. Figure 14 a to Figure 14c. Exemplarily and visually illustrates one magnetic pole 1240 of the magnet disk 440, a laser beam 1210 deflected on the beam deflector 165, and a main axis 1230 along which the laser beam 1210 should be oriented. Five magnetic poles 1240 are exemplarily shown.

[0087] exist Figure 14 In a, coil 551 ( Figure 13 The coil magnetic field exemplarily orients the magnetic field of the magnet disk 440 along the main axis 1230, wherein the positioning mark 1000 and the beam deflector 165 are arranged in any orientation. Here, the laser beam 1210 is deviated from the main axis 1230 by an angle 1220 in the diagram. Exemplarily, the laser beam 1210 is deviated from the main axis 1230 by an angle 1220 on the left side.

[0088] exist Figure 14 In step b, the coil magnetic field is rotated until the laser beam 1210 is positioned on the main axis 1230 in the diagram. This is preferably detected by a suitable detection device well known to those skilled in the art. Then, preferably, a first angle associated with the coil magnetic field is preserved.

[0089] exist Figure 14 In step c, the coil magnetic field is preferably continued to rotate until the absolute encoder 1100 is located within the positioning mark 1000. In the diagram, the absolute encoder 1100 is centrally positioned within the positioning mark 1000. Here, the laser beam 1210 is preferably offset from the main axis 1230 by an angle 1209. In the diagram, the laser beam 1210 is positioned on the right side, offset from the main axis 1230 by an angle 1209.

[0090] Then, preferably, a second angle associated with the coil magnetic field is stored. Here, the second angle preferably defines the orientation of the positioning mark 1000 within a pole pair, or magnetic pole 1240. The angular difference between the first angle and the second angle preferably defines the coil magnetic field path from the positioning mark 1000 to the sought laser position.

[0091] Figure 15 a to Figure 15 d shows based on Figure 14 a to Figure 14 The calibration process of c is in Figure 1 An exemplary absolute positioning process 1300 when the rotating laser 100 is started.

[0092] exist Figure 15 In a, Figure 13 The coil magnetic field of coil 551 exemplarily directs the magnetic field of magnet disk 440 along the path according to... Figure 14 c is the second angular orientation. Preferably, the absolute position is precisely determined within an angular segment of a pole pair.

[0093] exist Figure 15 In step b, the coil magnetic field is exemplarily rotated in the direction of arrow 1301. The coil magnetic field is preferably rotated 360° / N, i.e., one pole pair or magnetic pole 1240, so frequently that the absolute encoder 1100 detects the positioning mark 1000. In particular, the coil magnetic field is preferably rotated at most N-1 times, i.e., one less than the number of pole pairs, rotating one pole pair each time.

[0094] exist Figure 15 In c, the main axis 125 is now exemplarily in absolute orientation W2, or according to Figure 14 In position c. Subsequently, the coil magnetic field preferably rotates to preserve the angle difference between the first and second angles, which is based on Figure 14 a and Figure 14 Find b.

[0095] exist Figure 15 In diagram d, the laser beam 1210 is oriented along the main axis 1230. In this position, it is preferably reset. Figure 13 The grating is 560.

[0096] Figure 16 The housing 110 with a rotating head 160, or beam deflector 165, is shown. Figures 1 to 15 The main axis is 125. Here, Figure 16 The cage-like member 112, which is associated with the rotating head 160, is shown in the diagram. It is preferably configured to prevent the rotating head 160 from being impacted. The cage-like member 112 is preferably formed... Figure 1 The housing 110 is shown in the upper part of the diagram. Preferably, the cage-shaped member 112 is associated with the holding device 410 of the beam deflector 165. Here, the cage-shaped member 112 forms an inner receiving portion 1421 for accommodating the beam deflector 165 in the diagram. Preferably, the cage-shaped member 112 is made of metal and / or plastic.

[0097] Exemplarily, the holding device 410 is equipped with a cap 1400. The cap 1400 is preferably configured as an additional protective measure to prevent the beam deflector 165 from impacting the housing 110 or the cage-like member 112. Here, the cap 1400 secures the beam deflector 165 to the holding device 410 in the diagram. The cap 1400 exemplary has a base 1410 with an inner receiving portion 1411 for accommodating the holding device 410. Preferably, the base 1410 is at least approximately cylindrical in shape. Preferably, the cap 1400 or the base 1410 has a slot 1413 at the top in the diagram. Furthermore, the cap 1400 or the base 1410 preferably has a receiving portion 1412 on the right side in the diagram. The receiving portion 1412 is preferably used to accommodate a wedge prism associated with the beam deflector 165. Figure 17 (1520 in the middle).

[0098] Preferably, the cap 1400 is fixed to the retaining device 410 by means of a clamping or locking connection. Preferably, the cap 1400 is made of plastic.

[0099] Figure 17 The diagram shows a main shaft 125, a holding device 410, a beam deflector 165, and... Figure 16 The rotating head 160 of the cap 1400. Preferably, the beam deflector 165 is equipped with a wedge prism 1520. The wedge prism 1520 preferably has a disc-shaped base 1521, which has an outer perimeter 1522 and a diameter 1523.

[0100] Preferably, the wedge prism 1520 is equipped with a wedge prism holding device 1530. The wedge prism holding device 1530 exemplarily has an annular base 1531 having a receiving portion 1532 with an inner diameter 1533. Furthermore, the base 1531, as shown in the figure, has a circumferential flange 1534 that extends radially beyond the base 1531 and has an outer diameter 1535. Preferably, the lateral receiving portion 1412 of the cap 1400 is configured to receive the wedge prism 1520.

[0101] also, Figure 17 The diagram visually illustrates the receiving elements 411, 412, 413, and 414 of the holding device 410 associated with the beam deflector 165. In the diagram, a groove 1511 is formed between receiving elements 411 and 413, and / or a groove 1512 is formed between receiving elements 412 and 414. The two grooves 1511 and 1512 shown in the diagram are preferably arranged transversely to, and more particularly perpendicularly to, the two positioning surfaces 451 and 452, respectively.

[0102] Figure 18 Showing has Figure 16 The cage-like member 112 of the content storage portion 1421 (which in the diagram has an inner surface 1611 facing the beam deflector 165) and has Figure 16 and Figure 17 The cap 1400 beam deflector 165 and Figures 1 to 7 , Figures 9 to 12 as well as Figure 14 a to Figure 17 The main shaft 125. Preferably, the internal storage 1611 is constructed in an arc shape so as to prevent impact on the internal storage 1611 when the beam deflector 165 pivots.

[0103] Preferably, a gap 1601 is formed between the inner surface 1611 of the cage-like member 112 and the surface 1621 of the cap 1400 belonging to the retaining device 410. Furthermore, the internal storage portion 511 of the retaining device 410 has a depth 1602 as shown in the figure. The gap 1601 is preferably smaller than the depth 1602 of the internal storage portion 511.

[0104] also, Figure 18 The diagram illustrates a wedge prism 1520 exemplarily arranged on a cap 1400 via a wedge prism holding device 1530. Preferably, the wedge prism holding device 1530 is arranged in a receiving portion 1412 of the cap 1400. Preferably, the receiving portion 1412 extends into the receiving portion 1622 via an abutting edge 1623. Preferably, the circumferential flange 1534 of the wedge prism holding device 1530 is arranged in the receiving portion 1622 and abuts against the abutting edge 1623. The base 1531 of the wedge prism holding device 1530 is arranged in the receiving portion 1412 in the diagram. The wedge prism 1520 is preferably arranged here in the inner receiving portion 1532 of the base 1531.

[0105] Figure 19 Showing has Figure 17 The beam deflector 165 is held by a retaining device 410. Preferably, an adhesive receiving portion 1712 for receiving a first adhesive 1710 is arranged between the two positioning surfaces 451 and 452 along the transverse direction 498 of the two positioning surfaces 451 and 452. Preferably, the adhesive receiving portion 1712 has a receiving height of 0.2 mm along the longitudinal extension direction 201 of the main axis 125. This can produce a capillary effect. The first adhesive 1710 preferably forms a surface adhesive bond.

[0106] Furthermore, a second adhesive 1723, 1724 is preferably arranged in at least one, preferably two, grooves 1511, 1512 to form a second adhesive connection 1721, 1722, said grooves being transverse to, and particularly perpendicular to, the two positioning surfaces 451, 452 and arranged between the first receiving elements 411, 412 and the second receiving elements 413, 415. Here, adhesive connection 1721 is formed in groove 1512 and / or adhesive connection 1722 is formed in groove 1511. Preferably, the second adhesive connections 1723, 1724 are groove adhesive connections.

[0107] Furthermore, the side 1731 of the receiving element 411 facing the beam deflector 165 and / or the side 1734 of the receiving element 413 facing the beam deflector 165 exemplarily form the contact surface of the beam deflector 165 on the left side of the diagram. Preferably, the side 1732 of the receiving element 412 facing the beam deflector 165 and / or the side 1733 of the receiving element 414 facing the beam deflector 165 form the contact surface of the beam deflector 165 on the right side of the diagram.

[0108] Figure 20 Showing a spindle 125 Figure 1 The housing 110 has a cage-like member 112, and the main shaft 125 has a holding device 410 and a beam deflector 165. Preferably, a gap 1601 is formed between the inner surface 1611 of the cage-like member 112 and the surface 2021 of the beam deflector 165. The gap 1601 is preferably smaller than the depth 1602 of the inner receiving portion 511.

[0109] pass Figure 19 The first and second adhesive connections 1722, 1723, and 1724 securely and reliably fix the beam deflector 165 to the holding device 410. Thus, as... Figure 20 The area shown can save 1400 points from the cap.

[0110] In this alternative embodiment, the wedge prism is preferably directly fixed to the pentaprism using an optically transparent adhesive (for simplicity, in...). Figure 19 and Figure 20 (Not shown in the image).

Claims

1. A rotating laser (100) having a housing (110) in which a drive unit (120) is arranged for rotating a laser beam (1210), the drive unit having a stator (310) and a rotor for rotatably driving a spindle (125), characterized in that, The stator (310) forms a content storage section (311), which has a fixed receiving section (312), wherein the main shaft (125) is fixed in the content storage section (311) along the longitudinal extension direction (201) of the main shaft by means of a fixing element (221) arranged in the fixed receiving section (312).

2. The rotating laser according to claim 1, characterized in that, The main shaft (125) is supported in the internal storage section (311) by two bearing elements (231, 232).

3. The rotating laser according to any one of the preceding claims, characterized in that, The main shaft (125) is connected to a magnet carrier (215), which covers the inner receiving portion (311) and has at least one slot (399) so as to access the fixing element (221) fixed in the fixing receiving portion (312).

4. The rotating laser according to claim 2 or 3, characterized in that... A spacer element (240) is provided to space the two bearing elements (231, 232) apart from each other along the longitudinal extension direction (201) of the main shaft (125).

5. The rotating laser according to any one of claims 2 to 4, characterized in that, At least one of the two bearing elements (231, 232) is press-fitted onto the outer periphery (211) of the main shaft (125) and / or at least one of the two bearing elements (231, 232) is press-fitted into the bearing portion (314, 315) belonging to the inner housing (311).

6. The rotating laser according to any one of claims 2 to 5, characterized in that, In the content housing (311), the bearing portion (315) belonging to one free end (204) of the main shaft (125) has a contact surface (316) for contacting the bearing element (232) belonging to the bearing portion (315) of the two bearing elements (231, 232) along the longitudinal extension direction (201) of the main shaft (125).

7. The rotating laser according to any one of claims 2 to 6, characterized in that, The bearing element (232) of the two bearing elements (231, 232) associated with a free end (204) of the main shaft (125) is secured to the main shaft (125) by means of an additional fixing element (250) along the longitudinal extension direction (201) of the main shaft (125).

8. The rotating laser according to any one of claims 2 to 7, characterized in that, Along the longitudinal extension direction (201) of the main shaft (125), at least one spring element (222, 223) is arranged between the fixing element (221) or the additional fixing element (250) and the corresponding bearing element (231, 232) of the two bearing elements (231, 232).

9. The rotating laser according to any one of claims 2 to 8, characterized in that, At least one slot (911, 913) is constructed in the stator (310) and is arranged perpendicular to the inner receiving portion (311), wherein a clamping connection is formed between the clamping element (912, 914) associated with the at least one slot (911, 913) and the outer periphery (261, 263) of one of the two bearing elements (231, 232).

10. A method for assembling a spindle (125) in the stator (310) of a rotating laser (100) according to any one of the preceding claims, comprising the steps of: - The fixing element (221) is arranged on the area of ​​the main shaft (125) facing the magnet carrier (215). - The two bearing elements (231, 232) and the spacer element (240) are arranged on the outer periphery (211) of the main shaft (125). - The main shaft (125) is arranged in the internal storage portion (311) of the stator (310), and - The fixing element (221) is arranged in the fixing receiving part (312) of the stator (310).

11. The method according to claim 10, characterized in that, At least one of the two bearing elements (231, 232) is press-fitted onto the outer periphery (211) of the main shaft (125) and / or at least one of the two bearing elements (231, 232) is press-fitted into the bearing portion (314, 315) belonging to the inner storage portion (311).

Images