Laser splicing combined projector for processing large-scale wind power blade

Abstract

The utility model relates to the technical field of blade processing, in particular to a laser splicing combined projector for processing a large wind power blade, which comprises a cross beam, a position adjusting device and a laser projector, the position adjusting device can move along the X axis, rotate around the Y axis and swing around the Z axis in a pitching mode. The laser projector comprises a first laser assembly, a second laser assembly and a polarization beam combiner arranged along a light path of the first laser assembly. The position adjusting device is used for adjusting the position and the posture of the laser projector, so that a light beam emitted by the laser projector enters a to-be-processed area of the blade; the utility model has the advantages that the light beam of the first laser assembly and the light beam of the second laser assembly are combined into a high-intensity laser beam through the polarization beam combiner, the high-intensity laser beam is suitable for a high-illumination industrial environment, and clear and bright light spots can still be projected under the interference of strong light; and therefore, the machining precision and efficiency of the large wind power blade are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of blade processing technology, and in particular to a laser splicing combination projector for processing large wind turbine blades. Background Technology

[0002] Against the backdrop of the rapid development of the wind power industry, wind turbine blades are evolving towards larger size, lighter weight, and higher performance, which places more stringent demands on the processing precision and efficiency of the blades. Traditional blade processing technologies, such as manual scribing or mechanical templates, are no longer suitable for the production needs of large wind turbine blades due to their limited precision, low efficiency, and lack of flexibility. In recent years, laser projection technology, with its non-contact, high precision, and high efficiency characteristics, has gradually been applied in the industrial manufacturing field. However, existing laser projection equipment still faces challenges in processing large wind turbine blades, such as insufficient output power of a single light source, limited projection coverage area, and large equipment size. Utility Model Content

[0003] In view of this, the present invention aims to provide a laser splicing combination projector for the processing of large wind turbine blades. It emits a high-intensity laser beam through a first laser component, a second laser component, and a polarization beam combiner. It is suitable for high-illuminance industrial environments and ensures that a clear and bright light spot can still be projected under strong light interference, thereby significantly improving the processing accuracy and efficiency of large wind turbine blades.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A laser splicing combination projector for processing large wind turbine blades, comprising:

[0005] A crossbeam; a position adjustment device connected to the crossbeam; the position adjustment device can move along the X-axis, rotate around the Y-axis, and pitch around the Z-axis; a laser projector connected to the position adjustment device; the laser projector includes a first laser assembly and a second laser assembly, and a polarization combiner arranged along the optical path of the first laser assembly; the optical path of the second laser assembly is perpendicular to the optical path of the first laser assembly, and the output beam of the second laser assembly is combined with the optical path of the first laser assembly by the polarization combiner to form a single output beam; the position adjustment device adjusts the position and orientation of the laser projector so that the beam emitted by the laser projector is incident on the processing area of ​​the blade; wherein, any two of the X-axis, Y-axis, and Z-axis are perpendicular to each other; the Y-axis is perpendicular to the bottom surface of the crossbeam, and both the X-axis and Z-axis are parallel to the bottom surface of the crossbeam.

[0006] Furthermore, the position adjustment device includes a slide rail mounting plate, a crossbeam connecting assembly, a horizontal movement assembly, a swing pan / tilt head, a rotating pan / tilt head, and a projector connecting plate; the slide rail mounting plate is connected to the crossbeam via the crossbeam connecting assembly; the horizontal movement assembly is mounted on the slide rail mounting plate; the swing pan / tilt head is connected to the horizontal movement assembly; the rotating pan / tilt head is connected to the swing pan / tilt head; and the projector connecting plate is connected to the rotating pan / tilt head.

[0007] Furthermore, the transverse movement assembly includes a motor, a lead screw assembly, and two linear guides; the two linear guides are spaced apart on the slide rail mounting plate; the fixed end of the motor is connected to the slide rail mounting plate, the output end of the motor is connected to one end of the lead screw assembly, and the other end of the lead screw assembly is rotatably connected to the slide rail mounting plate through a bearing; the lead screw assembly is located between the two linear guides; the swing gimbal is connected to the lead screw nut of the lead screw assembly and the sliders of the two linear guides.

[0008] Furthermore, the laser projector also includes a heat sink, a housing, a lens assembly, and a conical mirror assembly; the heat sink is connected to a position adjustment device; the polarization combiner, the lens assembly, and the conical mirror assembly are sequentially arranged on the heat sink along the optical path of the first laser assembly; the housing is connected to the heat sink and covers the first laser assembly, the second laser assembly, the polarization combiner, the lens assembly, and the conical mirror assembly, and the housing has a light-transmitting opening on the light-emitting side corresponding to the conical mirror assembly.

[0009] Furthermore, the outer casing is also provided with a window that covers the light-transmitting opening and is connected to the outer casing.

[0010] Furthermore, the lens assembly includes a lens, a lens mount, and a slide motor; the slide motor is connected to a heat sink, and the lens is connected to the slide motor via the lens mount.

[0011] Furthermore, the conical lens assembly includes a conical lens, an adjustment block, and an adjustment frame. The adjustment frame is connected to the heat sink via the adjustment block, and the conical lens is mounted on the adjustment frame.

[0012] Furthermore, the first laser assembly and the second laser assembly have the same structure, both including a laser, a pad, a cooling chip, and a thermistor; wherein, the cooling chip is connected to a heat sink, the laser is connected to the cooling chip through the pad, and the thermistor is connected to the pad.

[0013] Furthermore, the laser projector also includes two fans and multiple feedthrough capacitors; the two fans and multiple feedthrough capacitors are all mounted on a heat sink and are located on opposite sides of the heat sink; the two fans are respectively located below the first laser assembly and the second laser assembly, and the multiple feedthrough capacitors are located close to the lens assembly.

[0014] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0015] 1) By combining the beams of the first laser component and the second laser component into a high-intensity laser beam through a polarization beam combiner, it is suitable for high-illuminance industrial environments and ensures that a clear and bright light spot can still be projected under strong light interference, thereby significantly improving the processing accuracy and efficiency of large wind turbine blades.

[0016] 2) After being focused and collimated by the lens assembly, the light beam forms a ring-shaped spot through the conical mirror assembly, and is finally projected as a high-precision linear laser through the light-transmitting aperture. This optical path system provides a precise installation and positioning benchmark for wind turbine blade processing, significantly reducing manual measurement and adjustment time and greatly improving work efficiency.

[0017] 3) Adjust the position and attitude of the laser projector through the position adjustment device so that the beam emitted by the laser projector is accurately incident on the blade positioning area.

[0018] 4) The laser projector uses heat sinks, semiconductor cooling chips and fans to work together to control the operating temperature of the laser projector, ensuring that the laser, lens assembly and conical lens assembly operate in the optimal temperature range, so that it can adapt to complex industrial environments such as high temperature and high dust, and maintain long-term stable operation. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of a laser splicing combination projector for processing large wind turbine blades according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the position adjustment device provided according to an embodiment of the present utility model from one perspective;

[0022] Figure 3 This is a structural schematic diagram of the position adjustment device provided according to an embodiment of the present utility model from another perspective;

[0023] Figure 4 This is a schematic diagram of the structure of a laser projector provided according to an embodiment of the present utility model;

[0024] Figure 5 This is a bottom view of a laser projector provided according to an embodiment of the present invention.

[0025] The reference numerals in the attached drawings include: 1. Crossbeam; 2. Position adjustment device; 21. Slide rail mounting plate; 22. Crossbeam connecting assembly; 221. First connecting plate; 222. I-beam buckle; 23. Lateral movement assembly; 231. Motor; 232. Lead screw assembly; 233. Linear guide rail; 24. Swinging pan / tilt head; 25. Rotating pan / tilt head; 26. Projector connecting plate; 27. Connecting seat; 3. Laser projector; 31. Heat sink; 32. Housing; 321. Window panel; 33. First... A laser assembly; 331, laser; 332, pad; 333, thermoelectric cooler; 334, thermistor; 34, lens assembly; 341, lens; 342, lens mount; 343, slide motor; 35, conical mirror assembly; 351, conical mirror; 352, adjusting block; 353, adjusting mirror frame; 36, fan; 37, feedthrough capacitor; 38, second laser assembly; 39, polarization combiner; 391, prism frame; 392, prism pad. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and do not constitute a limitation thereof.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figures 1 to 5 As shown in the figure, this utility model provides a laser splicing combination projector for processing large wind turbine blades, comprising: a crossbeam 1, a position adjustment device 2, and a laser projector 3. In this embodiment, the crossbeam 1 is an I-beam structure.

[0032] The position adjustment device 2 is connected to the crossbeam 1. The position adjustment device 2 can move along the X-axis, rotate around the Y-axis, and pitch around the Z-axis. The laser projector 3 is connected to the position adjustment device 2. The position adjustment device 2 adjusts the position and attitude of the laser projector 3 so that the beam emitted by the laser projector 3 is incident on the area to be processed on the blade.

[0033] The processing area of ​​the blade refers to the marked area on the blade mold that requires operations such as stacking, bonding, and marking.

[0034] In this embodiment, any two of the X, Y, and Z axes are perpendicular to each other; the Y axis is perpendicular to the bottom surface of the beam 1, and both the X and Z axes are parallel to the bottom surface of the beam 1. In this embodiment, the X axis is parallel to the length direction of the beam 1.

[0035] The position adjustment device 2 includes a slide rail mounting plate 21, a crossbeam connecting assembly 22, a horizontal movement assembly 23, a swing pan / tilt head 24, a rotary pan / tilt head 25, and a projector connection plate 26. The slide rail mounting plate 21 is connected to the crossbeam 1 via the crossbeam connecting assembly 22. The swing pan / tilt head 24 is connected to the horizontal movement assembly 23, the rotary pan / tilt head 25 is connected to the swing pan / tilt head 24, and the projector connection plate 26 is connected to the rotary pan / tilt head 25.

[0036] The crossbeam connecting assembly 22 includes a first connecting plate 221 and an I-beam buckle 222. One end of the I-beam buckle 222 is connected to the crossbeam 1, and the other end is connected to the first connecting plate 221. The first connecting plate 221 is connected to the slide rail mounting plate 21.

[0037] The lateral movement assembly 23 is mounted on the slide rail mounting plate 21. The lateral movement assembly 23 includes a motor 231, a lead screw assembly 232, and two linear guide rails 233. The two linear guide rails 233 are spaced apart on the slide rail mounting plate 21. The fixed end of the motor 231 is connected to the slide rail mounting plate 21, and the output end of the motor 231 is connected to one end of the lead screw assembly 232. The other end of the lead screw assembly 232 is rotatably connected to the slide rail mounting plate 21 via a bearing. The lead screw assembly 232 is located between the two linear guide rails 233. The swing gimbal 24 is connected to the lead screw nut of the lead screw assembly 232 and the sliders of the two linear guide rails 233 via a connecting seat 27.

[0038] Motor 231 drives the swing gimbal 24, the rotating gimbal 25 and the projector connection plate 26 through the lead screw assembly 232, thereby moving the laser projector 3 along the length direction (X-axis) of the crossbeam 1 to achieve horizontal position adjustment of the laser projector 3.

[0039] The oscillating gimbal 24 drives the laser projector 3 to move through the rotating gimbal 25 and the projector connection plate 26. The oscillating gimbal 24 oscillates around the Z-axis to adjust the pitch angle of the laser projector 3, and the rotating gimbal 25 rotates around the Y-axis to adjust the horizontal attitude of the laser projector 3, thus completing the attitude adjustment of the laser projector 3.

[0040] The 24-inch oscillating gimbal is a purchased component; manufacturer: Beijing Padway Instruments Co., Ltd.; model: PT-GD303.

[0041] The rotating gimbal 25 is a purchased part, manufactured by Beijing Padway Instruments Co., Ltd., model: PX110-100.

[0042] The laser projector 3 includes a heat sink 31, a housing 32, a first laser assembly 33, a second laser assembly 38, a polarization combiner 39, a lens assembly 34, a conical lens assembly 35, two fans 36, and multiple feedthrough capacitors 37. The heat sink 31 is connected to the projector connection plate 26 of the position adjustment device 2.

[0043] The optical path of the second laser assembly 38 is perpendicular to the optical path of the first laser assembly 33. The output beam of the second laser assembly 38 is combined with the optical path of the first laser assembly 33 through the polarization combiner 39 to form a single output beam. The polarization combiner 39, the lens assembly 34, and the conical mirror assembly 35 are sequentially arranged on the heat sink 31 along the optical path of the first laser assembly 33.

[0044] The polarization combiner 39 is mounted on the prism frame 391 via a press-fit assembly 393. The prism frame 391 is connected to the heat sink 31 via a prism pad 392. The press-fit assembly 393 includes a mounting plate, a column, a pressure plate, and a set screw. The mounting plate is connected to the prism frame 391. The column is mounted on the mounting plate. The pressure plate has a through hole along the axial direction of the column, and a threaded hole on the end face of the pressure plate perpendicular to the axial direction of the column. The pressure plate is sleeved around the outer periphery of the column and is movable along the axial direction of the column. The polarization combiner 39...

[0045] Prism holder 391 is a purchased part, manufactured by Wuhan Leilan Laser Co., Ltd., model: size 10×10mm (visible light band).

[0046] The housing 32 is connected to the heat sink 31 and encloses the first laser assembly 33, the second laser assembly 38, the polarization combiner 39, the lens assembly 34, and the conical mirror assembly 35. The housing 32 has a light-transmitting opening corresponding to the light-emitting side of the conical mirror assembly 35. The housing 32 also has a window 321, which covers the light-transmitting opening and is connected to the housing 32. The window 321 is a light-transmitting device, while the housing 32 is an opaque device.

[0047] Two fans 36 and multiple feedthrough capacitors 37 are mounted on a heat sink 31, located on opposite sides of the heat sink 31. The two fans 36 are positioned below the first laser assembly 33 and the second laser assembly 38, respectively. The multiple feedthrough capacitors 37 are positioned close to the lens assembly 34. The feedthrough capacitors 37 are used to filter out high-frequency noise and interference signals, ensuring the stability and signal integrity of the laser projector 3.

[0048] The first laser assembly 33 and the second laser assembly 38 have the same structure, each including a laser 331, a pad 332, a thermoelectric cooler 333, and a thermistor 334. The thermoelectric cooler 333 is connected to the heat sink 31, and the laser 331 is connected to the thermoelectric cooler 333 via the pad 332. The thermistor 334 is connected to the pad 332. The thermistor 334 monitors the temperature change of the laser projector 3 in real time.

[0049] The heat sink 31, the semiconductor cooling chip 333, and the fan 36 work together to effectively control the temperature of the laser projector 3, ensuring that the first laser assembly 33, the second laser assembly 38, the lens assembly 34, and the conical mirror assembly 35 operate within the optimal temperature range.

[0050] The lens assembly 34 includes a lens 341, a lens mount 342, and a slide motor 343. The slide motor 343 is connected to the heat sink 31, and the lens 341 is connected to the slide motor 343 through the lens mount 342.

[0051] The conical mirror assembly 35 includes a conical mirror 351, an adjusting block 352, and an adjusting frame 353. The adjusting frame 353 is connected to the heat sink 31 via the adjusting block 352, and the conical mirror 351 is mounted on the adjusting frame 353. The angles of the conical mirror 351 around the X and Y axes are adjusted by the adjusting frame 353 to bring it close to an ideal state.

[0052] The adjustable frame 353 is a purchased part, manufactured by Guangzhou Hengyang Electronic Technology Co., Ltd., model: MTMSO-1R.

[0053] The lasers 331 of the first laser assembly 33 and the second laser assembly 38 emit laser beams, which are then combined by the polarization combiner 39 to form a single laser beam that is incident on the lens 341. The distance between the lens 341 and the laser 331 is adjusted by the slide motor 343 to achieve beam focusing and collimation. The collimated beam is converted into a ring beam by the conical mirror 351; this conversion process can be precisely controlled by adjusting the mirror frame 353. The ring beam finally exits through the window 321, forming a straight reference in the area to be processed on the blade.

[0054] During operation, it is necessary to observe the relative position of the straight reference line emitted by the laser projector 3 and the marking line (marking line) of the area to be processed. By the translation movement of the horizontal moving component 23, the angle adjustment of the swinging gimbal 24, and the orientation adjustment of the rotating gimbal 25, the spatial position and projection posture of the laser projector 3 are comprehensively adjusted until the straight reference line and the marking line are completely coincident.

[0055] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A laser splicing combined projector for large wind power blade processing, characterized in that, The application relates to a laser projection device for a blade, which comprises the following components: a crossbeam; a position adjusting device connected with the crossbeam; the position adjusting device can move along an X axis, rotate around a Y axis and pitch around a Z axis; a laser projector connected with the position adjusting device; the laser projector comprises a first laser component and a second laser component, and a polarization beam combiner arranged along a light path of the first laser component; a light path of the second laser component is perpendicular to the light path of the first laser component, and an output beam of the second laser component is combined with a beam of the first laser component into one output beam through the polarization beam combiner; the position adjusting device adjusts the position and posture of the laser projector, so that the output beam of the laser projector is incident to a blade area to be machined; wherein any two of the X axis, the Y axis and the Z axis are perpendicular to each other; the Y axis is perpendicular to a bottom surface of the crossbeam, and the X axis and the Z axis are parallel to the bottom surface of the crossbeam.

2. The laser splicing combined projector for large wind power blade processing according to claim 1, characterized in that, the position adjusting device comprises a slide rail mounting plate, a crossbeam connecting component, a horizontal moving component, a swing holder, a rotating holder and a projector connecting plate; the slide rail mounting plate is connected with the crossbeam through the crossbeam connecting component; the horizontal moving component is mounted on the slide rail mounting plate; the swing holder is connected with the horizontal moving component; the rotating holder is connected with the swing holder; and the projector connecting plate is connected with the rotating holder.

3. The laser splicing combined projector for large wind power blade processing according to claim 2, characterized in that, the horizontal moving component comprises a motor, a screw rod component and two linear guides; the two linear guides are arranged on the slide rail mounting plate in a spaced mode; a fixed end of the motor is connected with the slide rail mounting plate, an output end of the motor is connected with one end of the screw rod component, the other end of the screw rod component is rotatably connected with the slide rail mounting plate through a bearing, and the screw rod component is located between the two linear guides; the swing holder is connected with a screw nut of the screw rod component and sliders of the two linear guides.

4. The laser splicing combined projector for large wind power blade processing according to claim 1, characterized in that, the laser projector further comprises a cooling fin, a shell, a lens component and a conical mirror component; the cooling fin is connected with the position adjusting device; the polarization beam combiner, the lens component and the conical mirror component are sequentially arranged on the cooling fin along the light path of the first laser component; the shell is connected with the cooling fin and covers the first laser component, the second laser component, the polarization beam combiner, the lens component and the conical mirror component; the shell is provided with a light transmission opening corresponding to a light output side of the conical mirror component.

5. The laser splicing combined projector for large wind power blade processing according to claim 4, characterized in that, the shell is further provided with a window piece covering the light transmission opening and connected with the shell.

6. The laser splicing combined projector for large wind power blade processing according to claim 4, characterized in that, the lens component comprises a lens, a lens seat and a slide table motor; the slide table motor is connected with the cooling fin, and the lens is connected with the slide table motor through the lens seat.

7. The laser splicing combined projector for large wind power blade processing according to claim 4, characterized in that, the conical mirror component comprises a conical mirror, an adjusting block and an adjusting mirror frame; the adjusting mirror frame is connected with the cooling fin through the adjusting block, and the conical mirror is arranged on the adjusting mirror frame.

8. The laser splicing combined projector for large wind power blade processing according to claim 4, characterized in that, the first laser component and the second laser component are identical in structure and each comprises a laser, a pad plate, a refrigeration fin and a thermistor. The refrigeration sheet is connected with the heat dissipation sheet, and the laser is connected with the refrigeration sheet through the cushion plate; the thermistor is connected with the cushion plate.

9. The laser splicing combined projector for large wind power blade processing according to claim 4, characterized in that, The laser projector further comprises two fans and a plurality of through-hole capacitors; the two fans and the plurality of through-hole capacitors are arranged on the heat dissipation sheet and are respectively located on opposite sides of the heat dissipation sheet; the two fans are respectively arranged below the first laser component and the second laser component, and the plurality of through-hole capacitors are arranged close to the lens component.

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