Laser unit for a rotating laser

Abstract

The invention relates to a laser unit for a rotary laser, to a press-in device, to a rotary laser and to a method for mounting a laser diode holder of a laser unit of a rotary laser in a support tube of a stator. The rotary laser has a drive unit for rotating a drive spindle in order to rotate a laser beam. A beam deflector for deflecting the laser beam is arranged on the spindle. The drive unit has a stator with a support tube and a rotor for rotating the drive spindle. The laser unit has a laser diode holder which can be arranged at least partially in the support tube. The laser diode holder has a tubular base body with an inner receptacle in which a laser diode is arranged, the tubular base body of the laser diode holder having a peripheral flange which has at least two radial expansions in the peripheral direction of the laser diode holder for releasable connection with a press-in device for pressing the laser diode holder into the support tube.

Description

Technical Field

[0001] The present invention relates to a laser unit for a rotating laser, the rotating laser having a drive unit for rotating a drive spindle for rotating a laser beam, wherein a beam deflector for deflecting the laser beam is arranged on the spindle, wherein the drive unit has a stator with a support tube / carrier tube and a rotor for rotating the drive spindle, wherein the laser unit has a laser diode holder that is at least partially arranged in the support tube, and wherein the laser diode holder has a tubular base with an internal receiving portion in which a laser diode is arranged. Background Technology

[0002] A laser unit for a rotating laser is known from the prior art, wherein the rotating laser has a drive unit for rotating a main shaft to rotate the laser beam, wherein a beam deflector for deflecting the laser beam is arranged on the main shaft, and wherein the drive unit has a stator with a support tube and a rotor for rotating the main shaft. The laser unit has a laser diode holder, which is partially disposed within the support tube. The laser diode holder has a tubular base with an internal receiving portion in which the laser diode is disposed. Summary of the Invention

[0003] This invention relates to a laser unit for a rotating laser, which has a drive unit for rotating a main shaft to drive a rotating laser beam. A beam deflector for deflecting the laser beam is arranged on the main shaft, and the drive unit has a stator with a support tube and a rotor for rotating the main shaft. The laser unit has a laser diode holder, which is at least partially disposed within the support tube. The laser diode holder has a tubular base with an internal receiving portion in which a laser diode is disposed. The tubular base of the laser diode holder has a peripheral flange with at least two radially extending portions in the circumferential direction of the laser diode holder for detachably connecting to a pressing device that presses the laser diode holder into the support tube.

[0004] Therefore, the present invention can provide a laser unit in which precise and accurate arrangement in the laser diode holder can be achieved by the at least two radial extensions.

[0005] Preferably, the detachable connection is configured to transmit pressure and / or tension.

[0006] Therefore, safe and reliable operation of the laser diode holder can be achieved in a simple way.

[0007] Preferably, the peripheral flange extends in a plate-like manner away from the tubular substrate.

[0008] Therefore, suitable peripheral flanges can be provided easily and without complexity.

[0009] Preferably, the at least two radial extensions are configured to form a detachable bayonet connection with the press-in device.

[0010] Therefore, a safe and reliable connection can be achieved between the two radial extensions and the pressing device.

[0011] Furthermore, the present invention relates to a pressing device for pressing a laser diode holder of a laser unit into a support tube of a stator of a drive unit of a rotating laser, having a first holding member for holding the support tube and a second holding member for holding the laser diode holder, wherein the second holding member has at least one undercut (or groove) in the circumferential direction for forming a detachable connection with the laser unit.

[0012] Therefore, the present invention can provide a pressing device in which the laser diode holder can be precisely and accurately arranged in the support tube by means of a second holding member with an undercut.

[0013] Preferably, the laser diode holder and the second holding member form a bayonet connection in the locked position for pressing the laser diode holder into the support tube.

[0014] Therefore, a safe and reliable connection can be provided for the pressing process.

[0015] Preferably, the bayonet connection is configured to transmit pressure and / or tension.

[0016] Therefore, the laser diode holder can be precisely and accurately positioned in the support tube in a simple way.

[0017] Furthermore, the present invention relates to a rotating laser having the aforementioned laser unit.

[0018] Therefore, the present invention can provide a rotating laser with a laser unit, wherein the at least two radial extensions can achieve precise and accurate arrangement in the laser diode holder.

[0019] Furthermore, the present invention relates to a method for mounting / assembling a laser diode holder of a laser unit of a rotating laser in a stator support tube, comprising the following steps: The laser diode holder is positioned on the second holding member of the press-fit device in the engagement position. The laser diode holder is rotated circumferentially by a predetermined torsion angle to position it in a locked position, where the laser diode holder and the second holding member form a bayonet connection. The stator is fixed to the first retaining component of the press-fit device. By applying force to the second holding member relative to the first holding member, the laser diode holding member is pressed into the internal receiving portion of the stator along the longitudinal extension direction of the stator. The laser diode holder is twisted against the circumferential direction relative to the pressing device to rotate the laser diode holder from the locked position to the engaged position, and Remove the first and second holding components from the laser diode holder and the stator support tube.

[0020] Therefore, the present invention can provide a method for mounting a laser diode holder for a laser unit of a rotating laser, wherein the laser diode holder can be precisely and accurately arranged in the support tube of the rotating laser.

[0021] Preferably, the laser diode holder has at least two radial extensions, and the second holder has at least one undercut, wherein the at least two radial extensions are arranged in the at least one undercut in order to form a bayonet connection.

[0022] Therefore, a safe and reliable connection can be achieved between the laser diode holder and the pressing device. Attached Figure Description

[0023] The invention will now be described in more detail with the aid of embodiments shown in the figures. The figures are as follows.

[0024] Figure 1 A perspective view of a rotating laser with a laser unit according to the present invention is shown.

[0025] Figure 2 Show Figure 1 A cross-sectional view of the stator, laser diode holder, and laser unit associated with the rotating laser.

[0026] Figure 3 Show Figure 1 The substrate associated with the rotating laser and Figure 2 A three-dimensional view of the stator and the tilt sensors associated with the two rotating lasers.

[0027] Figure 4 Showing with Figure 2 and Figure 3 A three-dimensional sectional view of the laser diode holder and the stator pressing device.

[0028] Figure 5 Showing with Figure 4 A cross-sectional view of the laser diode holder and the stator pressing device.

[0029] Figure 6 Show Figure 4 and Figure 5 A retaining component associated with the pressing device and Figures 2 to 5 A three-dimensional view of the laser diode holder in the first position.

[0030] Figure 7 Show Figure 6 A perspective view of the holding components and laser diode holder in another location.

[0031] Figure 8 Show Figures 4 to 7 A three-dimensional view of the retaining component.

[0032] Figure 9 Showing the view from the bottom Figures 2 to 6 A three-dimensional view of the laser diode holder.

[0033] Figure 10 Showing with Figures 2 to 6 A cross-sectional view of the stator of the laser diode holder.

[0034] Figure 11 A schematic diagram is shown of the measurement process used to adjust the turning. Detailed Implementation

[0035] In the accompanying drawings, elements with the same or comparable functions use the same reference numerals and are described in detail only once.

[0036] Figure 1 An exemplary rotating laser 100 is shown, having a housing 110 in which a laser unit 130 with a laser diode 135 for generating a laser beam is arranged. 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 rotating a drive spindle 125 is exemplary arranged in the housing 110.

[0037] Laser unit 130 is schematically arranged on main shaft 125 such that, by rotating main shaft 125, the laser beam generated by laser unit 130 rotates in an associated plane. For this purpose, main shaft 125 is preferably equipped with a rotating head 160 with a beam deflector 165. Beam deflector 165 is preferably configured to deflect the laser beam so that the laser beam is projected onto the associated plane. Depending on the design type of rotating laser 100, the projected plane can be horizontal, vertical, or, for example, extending at a defined angle relative to the Earth's surface. Preferably, drive unit 120 is configured as an electric motor.

[0038] 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 operating mode. Here, the rotational speed of the spindle 125 of the drive unit 120 is controlled or adjusted. For this purpose, it is preferable that the spindle 125 is equipped with a seeking unit 170.

[0039] According to one embodiment, the housing 110 is equipped with a protective cage 112 associated with the rotating head 160 to prevent the rotating head 160 from being impacted.

[0040] The electronic unit 190 is preferably equipped with an operating unit 150 having a display 151 and an input unit 152. The operating unit 150 is preferably connected to the electronic unit 190, particularly to the adjustment and monitoring device 195, in terms of control or adjustment technology. The input unit 152 preferably includes at least one keyboard. Alternatively, the input unit 152 has a rotary adjuster, a touchscreen, a slider, a remote control, etc. Through the input unit 152, the user can, for example, input the rotational speed of the spindle 125. Alternatively, the rotational speed of the laser unit 130 is automatically adjustable in an operating mode.

[0041] 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, preferably horizontal, direction or relative to a vertical line. Furthermore, the leveling unit 180 preferably has at least one tilt adjustment motor 182 configured to align the rotating head 160, particularly the beam deflector 165, and / or the laser unit 130, preferably relative to a vertical line, based on the position determined by the at least one tilt sensor 184.

[0042] Figure 2 Show Figure 1 The spindle 125, schematically supported by a bearing assembly 200, is located on... Figure 1 The stator 210 associated with the drive unit 120. The stator 210 exemplarily has a cylindrical support tube 211 with an internal receiving portion 212. A bearing assembly 200 with two bearing elements 231, 232 for supporting the main shaft 125 is schematically arranged in the internal receiving portion 212.

[0043] Preferably, the stator 210 has at least one recess arranged perpendicular to the inner receiving portion 212. The at least one recess is schematically arranged along the longitudinal extension direction 201 of the spindle 125 in the region of at least one bearing surface 241, 242. Preferably, a clamping connection is formed between clamping elements 296, 297 corresponding to the at least one recess and the outer periphery of one of the two bearing elements 231, 232. Exemplarily, the clamping elements 296, 297 are constructed as screws, particularly headless screws / set screws. The clamping elements 296, 297 can at least substantially—i.e., within conventional manufacturing tolerances—eliminate the gap between the stator 210 and the two bearing elements 231, 232.

[0044] Schematic, bearing element 231 is provided with an upper bearing surface 241, and bearing element 232 is provided with a lower bearing surface 242. Preferably, in the internal receiving portion 212, a contact surface 245 is provided for the bearing surface 242, which is schematically located at the lower end of the spindle 125, so that the bearing element 232, which is provided with the bearing surface 242, can be contacted along the longitudinal extension direction 201 of the spindle 125.

[0045] also, Figure 2 Show Figure 1 The laser unit 130 schematically includes a laser module housing 299, which has an internal receiving portion 247 for outputting or emitting a laser beam generated and collimated by a laser diode 135. The laser module housing 299 may be integrally formed with the stator 210.

[0046] To collimate the laser beam, the laser unit 130 preferably includes a collimating lens 280. Here, the collimating lens 280 is preferably disposed and fixed in a receiving section 246 schematically located in the upper part of the internal receiving portion 292 of the laser module housing 299. The collimating lens 280 is preferably fixed in the internal receiving portion 292 or the receiving section 246 by a material-fit connection and / or a press-fit connection.

[0047] Furthermore, schematically, the laser diode holder 260 is arranged in the internal receiving portion 292, particularly in the receiving portion section 246 at the lower part of the schematic representation. Preferably, a press-fit connection is at least partially formed between the outer periphery 262 of the laser diode holder 260 and the receiving portion section 246.

[0048] The laser diode holder 260 schematically has an internal receiving portion 263. A laser diode 135 for generating a laser beam is preferably arranged in the internal receiving portion 263. The laser diode 135 is preferably arranged on a circuit board 270. Preferably, the circuit board 270 is constructed as a flexible circuit board. Schematally, the circuit board 270 is arranged on the bottom side of the laser diode holder 260 opposite to the stator 210. Preferably, the circuit board 270 is fixed to the laser diode holder 260 by a material-fit connection. According to one embodiment, the material-fit connection is an adhesive connection. Here, the adhesive is preferably double-sided tape.

[0049] Preferably, the main spindle 125 is equipped with Figure 1 The determination unit 170 exemplarily includes a gear disk 219 and a grating (not shown). The gear disk 219 schematically has a receiving portion for at least partially accommodating a magnetic sheet 217. The magnetic sheet 217 here exemplarily constitutes the rotor of the drive unit 120.

[0050] Preferably, the spindle 125 has a cover element 215. The cover element 215 preferably serves as a bearing seat or a magnet seat. Preferably, the spindle 125 is connected to the cover element 215. Here, the cover element 215 is schematically arranged on the outer periphery 291 of the spindle 125 and extends the spindle 125 in the radial direction 202. Preferably, the cover element 215 is constructed in a disc shape. Exemplarily, the cover element 215 is integrally formed with the spindle 125. The gear disc 219 and the cover element 215 schematically constitute a receiving portion for at least partially accommodating the magnet 217. Here, the gear disc 219 is preferably connected to the magnet 217. Preferably, the gear disc 219 is connected to the magnet 217 by an adhesive connection. Alternatively, the cover element 215 is fixed to the spindle 125.

[0051] Preferably, the spindle 125 is equipped with a locking element 221 for locking onto the stator 210 or in the support tube 211. Preferably, along the longitudinal extension direction 201 of the spindle 125, at least one spring element 222 is arranged between the locking element 221 and the respective bearing elements 231, 232 to which the two bearing elements 231, 232 are respectively attached. The locking element 221 may, for example, be configured as a retaining ring.

[0052] Preferably, the laser diode holder 260 is at least partially disposed within the support tube 211. The laser diode holder 260 exemplarily has a tubular base 261 with an internal receiving portion 263 in which the laser diode 135 is schematically disposed. Preferably, the tubular base 261 of the laser diode holder 260 has a peripheral flange 264. The peripheral flange 264 schematically extends in a plate-like manner from the tubular base in the radial direction 202.

[0053] Preferably, the support tube 211 has a first abutting surface 243 on its outer periphery 218 and a second abutting surface 244 on the upper side 249 of the peripheral flange 213.

[0054] Figure 3 Show Figure 1 The rotating laser 100 is associated with a substrate 310. The substrate 310 is preferably movably supported within the housing 110 of the rotating laser 100. The substrate 310 has an upper side 301 and a bottom side 302. Exemplarily, a [missing information - likely a component or material] is arranged on the upper side 301. Figure 1 At least one, and schematically two, tilt sensors 184 of the leveling unit 180.

[0055] Furthermore, the substrate 310 schematically has a central recess 311. The substrate 310 is preferably used for arranging... Figure 2 The support tube 211. Here, the support tube 211 is preferably configured to at least partially engage with the central recess 311 of the substrate 310.

[0056] Preferably, the first contact surface 243 of the support tube 211 is disposed in the central recess 311. Furthermore, the second contact surface 244 is preferably disposed on the bottom side 302 of the substrate 310. The support tube 211 is preferably machined by adjustment on at least one of the first and / or second contact surfaces 243, 244 to orthogonalize the spindle 125 to the laser beam. Figure 9 Alignment of 911 in the middle. This processing of the first contact surface 243 enables the laser beam ( Figure 9 911) is concentrically and orthogonally aligned with substrate 310. In addition, bearing surfaces 241 and 242 (also referred to as bearing seats) are concentrically aligned with substrate 310.

[0057] Figure 4 An exemplary pressing device 490 is shown for pressing in the process of... Figure 2 Laser diode holder 260 press-fit Figure 2 In the support tube 211. Figure 2 The stator 210 or support tube 211 is preferably fixed to the retaining device 482 of the pressing device 490 by the first retaining member 484.

[0058] As mentioned above Figure 2The tubular base 261 of the laser diode holder 260 has a peripheral flange 264, which preferably has at least two radial extensions 430 on the circumferential direction 498 of the laser diode holder 260 for detachable connection with the pressing device 490 to press the laser diode holder 260 into the support tube 211. Preferably, the detachable connection is configured to transmit pressure and / or tension. This is illustrated by arrows 406 and 407. In particular, the detachable connection is preferably configured as a detachable bayonet connection 410. Preferably, the at least two radial extensions 430 are configured to form a detachable bayonet connection 410 with the pressing device 490.

[0059] Furthermore, the press-in device 490 schematically includes a first retaining member 484 for retaining the support tube 211 and a second retaining member 420 for retaining the laser diode retainer 260. The second retaining member 420 preferably has at least one undercut portion 423 partially on the circumferential direction 497 for forming a detachable connection with the laser unit 130. To form a bayonet connection 410, the at least two radial extensions 430 are preferably arranged in the at least one undercut portion 423. The at least one undercut portion 423 of the second retaining member 420 is preferably formed partially on the circumferential direction 497 of the second retaining member 420.

[0060] The second retaining member 420 schematically has a cylindrical base 421 with an internal receiving portion 422. At its schematic left end, the internal receiving portion 422 has an undercut portion 423. At its schematic right end, the second retaining member 420 schematically has a peripheral flange 424. Preferably, the second retaining member 420 is supported in the pressing device 490 by means of bearing elements 451, 452 via the peripheral flange 424, particularly in a retainer 486. The retainer 486 is exemplarily arranged in the retaining device 482 via a threaded connection 461. Preferably, the threaded connection 461 has a fine thread.

[0061] The laser diode holder 260 is pressed into the internal receiving portion 212 of the stator 210, preferably along the longitudinal extension direction 409 of the stator 210, by applying force to the first holder 420 relative to the second holder 484.

[0062] Figure 5 The pressing device 490 and the laser diode holder 260 are shown. Figure 4The support tube 211. Preferably, a monitoring diode is associated with the laser diode 135. 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 510, which is configured for laser power measurement independently of the monitoring diode. Schematic, the photodiode 510 is arranged perpendicular to the laser diode 135.

[0063] Figure 6 Show Figure 4 and Figure 5 The second retaining member 420 of the pressing device 490 and Figures 2 to 5 The laser diode holder 260 is in the engaged position 600. Preferably, the laser diode holder 260 has at least two, schematically three, radial extensions 430. Similarly, the second holder 420 preferably has a recess 615 on its end face 601 corresponding to the laser diode holder 260, or schematically the three radial extensions 430. Preferably, the second holder 420 has three covering ribs 611, 612, 613 on its end face 601, which partially cover the undercut 423. Furthermore, the recess 615 schematically has a protrusion 631 at the center of the covering ribs 611, 612, 613, which corresponds to the outer periphery 625 of the peripheral flange 264 of the laser diode holder 260.

[0064] Figure 7 Show Figure 6 The second retaining member 420 of the pressing device 490 is in the locked position 700 with the laser diode retaining member 260. Figure 7 In the middle, the second holding member 420 and the laser diode holding member 260 are schematically positioned relative to each other in the circumferential direction 701. Figure 6 The engagement positions 600 are arranged to rotate relative to each other. Preferably, the second holding member 420 and the laser diode holding member 260 are rotated 60° relative to each other in the circumferential direction 701.

[0065] In the locked position 700, three radial extensions 430 are schematically arranged in the undercut portion 423, wherein the covering ribs 611, 612, and 613 press the radial extensions 430 into the undercut portion 423. Here, schematically, the laser diode holder 260 and the second holder 420 form a bayonet connection 410.

[0066] In an exemplary method for mounting the laser diode holder 260 of the laser unit 130 of the rotating laser 100 into the support tube 211 of the stator 210, preferably the laser diode holder 260 is first placed in... Figure 6 The joint position 600 is arranged in Figure 4 and Figure 5 The laser diode holder 260 is then mounted on the second retaining member 420 of the pressing device 490. Subsequently, the laser diode holder 260 is rotated circumferentially 701 by a predetermined torsion angle to position it in a locked position 700, where the laser diode holder 260 and the second retaining member 420 form a bayonet connection 410. Similarly, the stator 210 is secured to the first retaining member 484 of the pressing device 490. Then, by applying force to the second retaining member 420 relative to the first retaining member 484, the laser diode holder 260 is pressed into the internal receiving portion 212 of the stator 210 along the longitudinal extension direction 409 of the stator 210. Subsequently, the laser diode holder 260 is rotated against the circumferential direction 701 relative to the pressing device 490 to rotate the laser diode holder 260 from the locked position 700 to the engaged position 600. Finally, the first and second retaining members 484, 420 are removed from the laser diode holder 260 and the support tube 211 of the stator 210.

[0067] As described above, preferably, in order to form a bayonet connection 410, the at least two radial extensions 430 of the laser diode holder 260 are arranged in the at least one undercut portion 423 of the second holder 420.

[0068] Figure 8 Show Figures 4 to 7 The second retaining member 420 has a cylindrical base 421, an undercut portion 423 and a peripheral flange 424. Figure 8 Also shown is a recess 615 with covering ribs 611, 612, 613 and a protrusion 631.

[0069] Figure 9 Show Figures 2 to 7 Laser diode holder 260. Figure 9 The peripheral flange 264 of the laser diode holder 260 with three exemplary radial extensions 430 is also shown.

[0070] Figure 10 The stator 210 is shown with a support tube 211 and a laser diode holder 260 partially arranged in the support tube 211, the laser diode holder having Figure 2 , Figure 4 and Figure 5The laser diode 135, photodiode 510, and collimating lens 280 are included. The laser beam 911 generated by the laser diode 135 and collimated by the collimating lens 280, and the laser axis 912 associated with the laser beam 911, are schematically not arranged to coincide with the rotation axis 999 of the main shaft or support tube 211, but are exemplaryly tilted relative to it. This tilt and / or lateral offset may occur when the laser diode 135 is mounted in the laser diode holder 260, when the laser diode holder 260 is mounted in the support tube 211, and / or when the collimating lens 280 is mounted in the support tube 211.

[0071] In order to compensate for the tilt and / or lateral offset of the laser beam 911 relative to the rotation axis 999 within a predetermined tolerance, or in order to align the rotation axis 999 of the spindle 125 with the laser beam 911 of the laser diode 135, the support tube 211 is preferably machined by adjusting turning (or calibrating turning).

[0072] In traditional turning, the workpiece is clamped onto a spindle, which is fixed in position and can only rotate. Therefore, only rotationally symmetric or helical geometries, such as threads, can be produced. In adaptive turning, the spindle can also perform lateral movements. These different movements, such as spindle rotation, lateral movement, and tool feed, can be precisely controlled by a computer. In this way, "non-circular" profiles can be produced. This capability enables the correction of tilted laser axes, such as the exemplary laser axis 912.

[0073] As described above, at least two bearing surfaces 241 and 242 are provided in the internal receiving portion 212 of the support tube 211 for arranging bearing elements 231 and 232 to rotatably support the bearing elements. Figure 1 and Figure 2 The spindle 125. Preferably, the support tube 211 is machined by adjustment on at least one of the at least two bearing surfaces 241, 242 to align the spindle 125 concentrically with the laser beam 911.

[0074] Furthermore, as described above, the support tube 211 preferably has a first abutment surface 243 on its outer periphery 218 and / or a second abutment surface 244 on the upper side 249 of the peripheral flange 213, wherein the first abutment surface 243 is exemplarily arranged on... Figure 3 In the central recess 311, a second contact surface 244 is disposed on the bottom side 302 of the substrate 310. Alternatively or optionally, the support tube 211 is machined on the first contact surface 243 by adjustment turning for positioning the spindle 125 or laser beam 911 relative to... Figure 3 The substrate 310 is centered and aligned. Alternatively or optionally, the support tube 211 is machined on the second contact surface 244 by adjustment turning to position the spindle 125 or laser beam 911 relative to... Figure 3 The substrate 310 is orthogonally aligned.

[0075] Preferably, during the adjustment turning of the stator 210 or the support tube 211, at least one of the surfaces 241, 242, 243, and 244 belonging to the support tube 211 is machined, particularly by cutting, based on a virtual rotation axis defined by the laser axis 912. Preferably, at least one of the bearing surfaces 241 and 242 constitutes such a belonging surface. Alternatively or optionally, the first and / or second contact surfaces 243 and 244 constitute such a belonging surface. By machining the support tube 210 along the virtual rotation axis, preferably machining at least one belonging surface 241, 242, 243, and 244, the rotation axis 999 of the spindle 125 is aligned with the laser beam 911.

[0076] Figure 11 Show Figure 10 The stator 210 is used in a method for aligning the rotation axis 999 of the spindle 125 of the rotating laser 100 with the laser axis 912 of the laser beam 911 generated by the laser diode 135 of the laser unit 130 of the rotating laser 100.

[0077] The tilting of the laser diode holder 260 within the support tube 211 caused by the installation results in a tilt and / or lateral offset of the laser axis 912 of the laser beam 911 relative to the rotation axis 999 of the spindle 125, which is compensated for by adjusting the turning process. For this purpose, the laser axis 912 is first measured to determine the existing tilt and / or lateral offset of the laser axis 912 relative to the rotation axis 999.

[0078] When measuring the laser axis 912, rotating laser beams 1031 and 1032 are first acquired in a first plane 1021 perpendicular to the rotation axis 999 of the main axis 125 and in a second plane 1022 perpendicular to the rotation axis 999 of the main axis 125. Here, the vertical planes 1021 and 1022 are arranged at different distances z1 and z2 from the laser diode 135. Subsequently, the center points 1041 and 1042 of the rotating laser beams 1031 and 1032 in the first and second planes 1021 and 1022 are preferably determined to define the rotation axes associated with the laser beams 1031 and 1032. Then, a first laser point 1061 associated with the first rotating laser beam 1031 can be acquired at a first torsion angle 1098, and a second laser point 1062 associated with the second rotating laser beam 1032 can be acquired at a second torsion angle 1099. The first and second torsion angles 1098 and 1099 are preferably the same. Finally, by means of the first and second laser points 1061 and 1062 acquired, the tilt 1051 and / or lateral offset of the existing laser axis 912 relative to the rotation axis 999 is determined.

[0079] If there is a tilt and / or lateral offset of the laser axis 912 relative to the rotation axis 999, the above-described adjustment turning of at least one surface 241, 242, 243, 244 belonging to the support tube 211 is performed to compensate for the tilt and / or lateral offset, so that the laser axis 912 coincides and is aligned with the rotation axis 999.

Claims

1. A laser unit (130) for a rotating laser (100), the rotating laser having a drive unit (120) for rotating a main shaft (125) to rotate a laser beam (911), wherein a beam deflector (165) for deflecting the laser beam (911) is arranged on the main shaft (125), wherein the drive unit (120) has a stator (210) with a support tube (211) and a rotor for rotating the main shaft (125), wherein the laser unit (130) has a laser diode holder (260) capable of being at least partially arranged in the support tube (211), wherein the laser diode holder (260) has a tubular base (261) with an internal receiving portion (263) in which a laser diode (135) is arranged, characterized in that, The tubular base (261) of the laser diode holder (260) has a peripheral flange (264) having at least two radial extensions (430) in the circumferential direction (498) of the laser diode holder (260) for detachably connecting with a pressing device (490) for pressing the laser diode holder (260) into the support tube (211).

2. The laser unit according to claim 1, characterized in that, The detachable connection is configured to transmit pressure and / or tension.

3. The laser unit according to claim 1 or 2, characterized in that, The peripheral flange (264) extends away from the tubular matrix in a plate-like manner.

4. The laser unit according to any one of the preceding claims, characterized in that, The at least two radial extensions (430) are configured to form a detachable bayonet connection (410) with the press-in device (490).

5. A pressing device (490) for pressing a laser diode holder (260) of a laser unit (130) into a support tube (211) of a drive unit (120) of a rotating laser (100), comprising a first holding member (484) for holding the support tube (211) and a second holding member (420) for holding the laser diode holder (260), wherein, The second retaining member (420) has at least one undercut (423) in the circumferential direction (497) for forming a detachable connection with the laser unit (130).

6. The pressing device according to claim 5, characterized in that, The laser diode holder (260) and the second holding member (420) form a bayonet connection (410) in the locked position (700) for pressing the laser diode holder (260) into the support tube (211).

7. The pressing device according to claim 5 or 6, characterized in that, The bayonet connection (410) is configured to transmit pressure and / or tension.

8. A rotating laser (100) having a laser unit (130) according to any one of claims 1 to 4.

9. A method for mounting a laser diode holder (260) of a laser unit (130) of a rotating laser (100) in a support tube (211) of a stator (210), the method comprising the steps of: The laser diode holder (260) is arranged in the engagement position (600) on the second holding member (420) of the press-fit device (490). The laser diode holder (260) is twisted circumferentially (701) by a predetermined torsion angle to be arranged in a locked position (700), in which the laser diode holder (260) and the second holding member (420) form a bayonet connection (410). The stator (210) is fixed to the first retaining member (484) of the pressing device (490). By applying force to the second retaining member (420) relative to the first retaining member (484), the laser diode retaining member (260) is pressed into the internal receiving portion (212) of the stator (210) along the longitudinal extension (409) of the stator (210). The laser diode holder (260) is twisted against the circumferential direction (701) relative to the pressing device (490) to twist the laser diode holder (260) from the locked position (700) to the engaged position (600), and Remove the first and second holding members (484, 420) from the laser diode holder (260) and the support tube (211) of the stator (210).

10. The method according to claim 9, characterized in that, The laser diode holder (260) has at least two radial extensions (430), and the second holder (420) has at least one undercut (423), wherein the at least two radial extensions (430) are arranged in the at least one undercut (423) in order to form a bayonet connection (410).

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