Normal correction and calibration device for assisting laser source and correction and calibration method of normal correction and calibration device

Abstract

The invention discloses a device for assisting a laser source in normal correction and calibration and a correction and calibration method thereof.The device comprises a laser cutting machine, a normal correction and calibration device is arranged below the laser cutting machine and comprises a correction and calibration body, a horizontal moving assembly is arranged on the upper surface of the correction and calibration body, and a moving platform is arranged on the horizontal moving assembly; a horizontal swing assembly is arranged on the moving platform, a longitudinal swing assembly is arranged on the horizontal swing assembly, a micro-inclination assembly is arranged on the longitudinal swing assembly, a working platform is arranged on the micro-inclination assembly, a laser angle sensor is arranged on the upper surface of the working platform, and a plurality of clamping mechanisms are arranged on the outer side wall of the working platform. The normal correction and calibration device provided by the invention works synchronously and cooperatively with the working process of the laser source, so that the problem that when an object with an uneven surface or the inner wall of a pipe fitting (such as a hub) is machined, the part which is difficult to be touched is difficult to process meticulously only through swinging of the laser source is solved, the machining fineness and effect are improved, and the machining quality is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting machine production, and in particular relates to a normal correction calibration device and a straightening and calibration method thereof for an auxiliary laser source. Background Art

[0002] In the field of laser processing, the accuracy of the normal between the laser source and the object being processed plays a vital role in ensuring processing quality and precision. With the continuous development of the manufacturing industry, higher requirements are placed on the calibration and control of the laser source.

[0003] At present, there are some technical solutions for laser calibration devices and methods, such as the document Disclosed are an auxiliary device and a calibration method for beam calibration during laser welding. The technical solution mainly solves the problem that the device can provide additional vertical height compensation to adapt to the height of the material to be welded, calibrates the laser beam to match the area of ​​the solder to be welded by comparing the spot size, and provides an effective reference for beam focusing, thereby solving the offset problem of laser welding and ensuring welding quality and processing efficiency.

[0004] However, in the long-term actual use process, it was found that the above-mentioned prior art has some obvious defects. When facing some objects with uneven surfaces or the inner wall of the pipe (such as the wheel hub), the device can only perform additional vertical height compensation, and cannot make further detailed adjustments in a timely and flexible manner. In detail, due to the complex surface shapes of these special workpieces, the laser source can only rely on its own swing to cater to the surface of the object. After the swing of the laser source is restricted, there will be deviations in the incident angle of some difficult-to-reach parts. At this time, the incident light spot of the light source is not in the best working state, resulting in insufficient detailed subsequent processing and insufficient processing accuracy, which cannot meet high-quality processing requirements.

[0005] In addition, along with the coordinated laser source adjustment of the device, the existing device fixation is not effective enough. During the adjustment of the workpiece, the object is prone to slight displacement, which not only affects the accuracy of laser processing, but may also cause deviations in the processing process, reducing processing quality and efficiency.

[0006] Therefore, in order to meet the needs of modern manufacturing industry for laser processing of complex workpieces, there is an urgent need for an auxiliary laser source to perform normal correction calibration device and a straightening calibration method thereof that can effectively solve the above-mentioned problems. Summary of the invention

[0007] The purpose of the present invention is to provide an auxiliary laser source for normal line correction calibration and its alignment calibration method to solve the problems of auxiliary devices for beam calibration in the existing laser working process. When processing workpieces with complex surfaces, the laser source swing is limited, resulting in incident angle deviation, and its compensation correction calibration is not detailed and the accuracy is insufficient. In addition, the workpiece is easily displaced during coordinated adjustment, which affects the processing quality and efficiency.

[0008] The present invention achieves the above-mentioned object through the following technical solutions: an auxiliary laser source for normal correction calibration device, comprising a laser cutting machine, wherein a normal correction calibration device matching with the laser cutting machine is arranged below the laser cutting machine;

[0009] The normal correction calibration device includes a correction calibration body, a horizontal moving component is embedded on the upper surface of the correction calibration body, a moving platform is arranged on the horizontal moving component, a horizontal swing component is arranged on the moving platform, a longitudinal swing component is arranged on the horizontal swing component to match it, a micro-tilt component is arranged on the longitudinal swing component, a working platform is arranged on the micro-tilt component, a laser angle sensor is arranged at one end of the upper surface of the working platform, and a plurality of clamping mechanisms are arranged on the outer side wall of the working platform.

[0010] Furthermore, the horizontal moving component is half-embedded in the horizontal moving body on the upper surface of the correction and calibration body, two groups of horizontal moving guide rails are relatively arranged in the cavity of the horizontal moving body, horizontal moving sliders are slidably arranged on the two groups of the horizontal moving guide rails, a horizontal moving member is fixedly arranged between the two groups of the horizontal moving sliders, two groups of horizontal driving wheels are rotatably arranged between the two groups of the horizontal moving guide rails, a horizontal driving motor for driving the rotation of one of the horizontal driving wheels is arranged at the bottom, the two groups of the horizontal driving wheels are matched with each other through a rubber pull belt, the rubber pull belt and the horizontal moving member are matched with a clamping member, a cover plate is arranged above the horizontal moving body, and there is a gap between the cover plate and the horizontal moving body;

[0011] Anti-collision parts are arranged at the two groups of horizontal driving wheels, and limit sensors are arranged at the anti-collision parts. Induction plates cooperating with the limit sensors are arranged on the side walls at both ends of the horizontal moving part.

[0012] Furthermore, the horizontal swing assembly includes a horizontal swing base with one end rotatably set on the upper surface of the moving platform through a first pin shaft, a horizontal swing motor is arranged on the side wall of the horizontal swing base relative to the first pin shaft, a swing gear is arranged on the rotating shaft of the horizontal swing motor, an arc-shaped rack meshing with the swing gear is arranged on the swing gear, and the arc-shaped rack is fixed to the upper surface of the moving platform.

[0013] Furthermore, the longitudinal swing component includes bearings respectively arranged on the two side walls of the horizontal swing base, and second pins are sleeved in the two groups of bearings. A longitudinal swing motor is arranged on the side wall of the horizontal swing base located at one group of the second pins. The rotating shaft of the longitudinal swing motor is connected to the adjacent second pin through a coupling, and a longitudinal swing plate is arranged between the two groups of the second pins.

[0014] Furthermore, the micro-tilt assembly includes a micro-tilt bottom piece with an arc-shaped cross-section, a guide tooth groove is provided on the middle side wall of the micro-tilt bottom piece, an oblique threaded screw engaged with the guide tooth groove is provided on the guide tooth groove, screw bases for fixing the oblique threaded screw are provided at both ends of the oblique threaded screw, the screw base is fixed to the bottom of the working platform, a first micro-tilt motor for driving the oblique threaded screw to rotate is provided on the outer side wall of one group of the screw bases, first guide grooves are opened on the side walls at both ends of the micro-tilt bottom piece, and arc guide blocks are provided at the first guide grooves, and the arc guide blocks are fixed to the bottom of the working platform.

[0015] Furthermore, the micro-tilt assembly includes a micro-tilt support frame, a micro-tilt connecting rod is rotatably arranged above the micro-tilt support frame, micro-tilt connecting plates are arranged at both ends of the micro-tilt connecting rod, the micro-tilt connecting plate is fixedly connected to the bottom of the working platform, a second micro-tilt motor is arranged on the micro-tilt support frame, a micro-tilt driving gear is arranged on the rotating shaft of the second micro-tilt motor, a micro-tilt driven gear is sleeved on the micro-tilt connecting rod, the micro-tilt driving gear and the micro-tilt driven gear are meshed with each other, a second guide groove is opened on the side wall of the micro-tilt connecting plate, and a guide cap rod matching the second guide groove is arranged on the outer side wall of the micro-tilt support frame.

[0016] Furthermore, the working platform includes a working platform body, which is hollow inside, and has a plurality of suction holes evenly distributed on its upper surface, the suction holes being in an inverted cone shape, and a plurality of external pipes arranged on the bottom side wall of the working platform body.

[0017] Furthermore, the clamping mechanism includes a clamping bottom piece that matches the side wall of the working platform, a first rubber pad is provided on the inner wall of the clamping bottom piece, a hand-holding portion is provided on the outer wall of the clamping bottom piece, a position locking bolt is provided on the side wall of the clamping bottom piece located at the hand-holding portion, a cylinder fixing bottom piece is provided on the top of the clamping bottom piece, a clamping cylinder is fixedly provided in the cylinder fixing bottom piece, a pressing piece is provided on the telescopic rod of the clamping cylinder, and a second rubber pad is provided on the pressing piece.

[0018] A method for aligning and calibrating a normal correction calibration device using an auxiliary laser source, comprising the following steps:

[0019] S01: Preparation:

[0020] The object to be processed is placed on the working platform, and the suction hole on the working platform is used to connect the external suction equipment through the external pipe to fix the object on the upper surface of the working platform body by suction. If the object needs additional fixation, the clamping mechanism can be added, and the position of the clamping bottom piece can be adjusted through the handheld part to make the first rubber pad fit the object, and then the position locking bolt is tightened, and then the clamping cylinder is started to make the second rubber pad on the pressing piece press down to contact the material for further fixation;

[0021] During the process, ensure that the laser cutting machine and the normal correction calibration device have been correctly connected and debugged, and that the laser angle sensor has been calibrated and can accurately detect the laser angle;

[0022] S02: Horizontal movement adjustment:

[0023] According to the position of the object and the starting working position of the laser source, the horizontal driving motor is started, the driving horizontal driving wheel rotates, and the horizontal moving slider of the horizontal moving member on the horizontal moving guide rail is driven to slide through the rubber pull belt, so that the moving platform moves the object horizontally to a suitable position;

[0024] When the induction plates at both ends of the horizontal moving part approach the limit sensors at the anti-collision part, the horizontal drive motor will reduce its speed to prevent the horizontal moving part from being damaged by collision. During this process, the anti-collision part is used for further protection.

[0025] S03: Horizontal swing adjustment:

[0026] The horizontal swing motor is started, and the swing gear on the rotating shaft rotates. Since the swing gear is meshed with the arc-shaped rack fixed on the upper surface of the moving platform, the horizontal swing base is driven to swing horizontally around the first pin shaft, and the horizontal angle of the working platform is adjusted so that the irradiation direction of the laser source on the horizontal plane is more matched with the position on the surface of the object where work is required;

[0027] During operation, the rotation angle of the horizontal swing motor is fine-tuned according to the laser source position information fed back by the laser angle sensor to ensure the position accuracy in the horizontal direction;

[0028] S04: Longitudinal swing adjustment:

[0029] Starting the longitudinal swing motor to drive the second pin shaft to rotate through the coupling, so that the longitudinal swing plate swings in the vertical direction around the second pin shaft, adjusting the longitudinal angle of the working platform, and thus adjusting the irradiation direction of the laser source on the vertical plane to be closer to the normal direction of the object surface;

[0030] During operation, the rotation of the longitudinal swing motor is precisely controlled according to the angle data detected by the laser angle sensor to ensure the accuracy of the longitudinal angle;

[0031] S05: Micro-tilt adjustment:

[0032] The micro-tilt assembly of the micro-tilt bottom structure is used, the first micro-tilt motor is started, and the oblique threaded screw is driven to rotate, and in the process, it meshes with the guide tooth groove on the middle side wall of the micro-tilt bottom, and under the guiding action of the arc surface guide block and the first guide groove, the inclination angle of the working platform is further fine-tuned, so that the normal line of the laser source and the normal line of the object surface are highly coincident;

[0033] S06: Laser Processing:

[0034] In the specific working process, through the coordinated work of various components accompanying the laser source at all times, for the processing of objects with uneven surfaces or the inner wall of pipe fittings (such as wheel hubs), the laser source can irradiate more accurately along the surface normal direction of the object to be processed, thereby improving the precision and effect of the processing and avoiding the difficulty in processing the hard-to-reach parts due to relying solely on the swing of the laser source;

[0035] In addition, during the processing, the data of the laser angle sensor is continuously monitored. If an angle deviation is found, the above steps are repeated to make corresponding fine adjustments to ensure the processing quality;

[0036] S07: Processing completed and equipment reset:

[0037] After the processing is completed, the horizontal moving assembly is started to move the processed object to one end of the correction and calibration body, and the power supply of the laser cutting machine is turned off;

[0038] Loosen the clamping cylinder of the clamping mechanism and disconnect the external vacuum device to remove the processed object;

[0039] Each component is reset to its initial position through the corresponding drive device to prepare for the next processing.

[0040] Beneficial effects: The invention has reasonable design, simple and stable structure, strong practicability, and also has the following beneficial effects:

[0041] 1. Flexible and precise adjustment: Through the mutual coordination and adjustment of various components, the working platform can be flexibly adjusted from multiple dimensions, so that when facing objects with uneven surfaces or complex-shaped workpieces such as the inner wall of pipes (such as wheel hubs), the incident angle and position of the laser source can be coordinated to make the incident laser source highly coincident with the normal line of the working position on the surface of the object, ensuring that the incident spot of the laser source is in the best working state;

[0042] 2. Firmly fix the workpiece: The suction holes on the working platform can be connected to external suction equipment through external pipes to adsorb and fix the objects. At the same time, the clamping mechanism on the outer wall can work together to firmly and reliably fix the objects, effectively avoiding the situation where the workpiece is prone to slight displacement when the laser source is adjusted, thereby improving the processing quality and efficiency;

[0043] 3. Real-time monitoring and feedback: The laser angle sensor installed on one end of the upper surface of the working platform can monitor the angle data of the laser source in real time. During the processing, once the angle deviation is found, the corresponding adjustment steps can be repeated in time according to the data fed back by the sensor, thus realizing real-time monitoring and precise control of the processing process, and further ensuring the stability of the processing quality;

[0044] 4. Convenient and efficient operation: Each component of the present invention has a clear operation process and control basis, and the operator can quickly get started and operate accurately, which improves work efficiency and reduces operation difficulty and error rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic diagram of the present invention;

[0046] Figure 2 It is a structural schematic diagram of the normal correction calibration device of the present invention;

[0047] Figure 3 It is a schematic diagram of the internal structure of the horizontal moving assembly of the present invention;

[0048] Figure 4 It is a schematic diagram of the enlarged structure of part A of the present invention;

[0049] Figure 5 It is a schematic diagram of the structure of the horizontal swing member of the present invention;

[0050] Figure 6 It is a structural schematic diagram of the micro-tilt assembly of the present invention;

[0051] Figure 7 It is a structural schematic diagram of the working platform of the present invention;

[0052] Figure 8 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0053] Fig. 9 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0054] In the figure: 1-correction calibration body, 2-horizontal moving component, 3-moving platform, 4-horizontal swing component, 5-longitudinal swing component, 6-micro-tilt component, 7-working platform, 8-laser angle sensor, 9-clamping mechanism;

[0055] 201-horizontally movable body, 202-horizontally movable guide rail, 203-horizontally movable slider, 204-horizontally movable member, 205-horizontally movable driving wheel, 206-horizontally movable motor, 207-rubber pull belt, 208-clamping member, 209-cover plate, 2010-anti-collision member, 2011-limit sensor, 2012-sensing plate;

[0056] 401-first pin, 402-horizontal swing base, 403-horizontal swing motor, 404-swing gear, 405-arc rack;

[0057] 501-bearing, 502-second pin, 503-longitudinal swing motor, 504-coupling, 505-longitudinal swing plate;

[0058] 601-micro-tilt bottom piece, 602-guide tooth groove, 603-oblique threaded screw, 604-screw base, 605-first micro-tilt motor, 606-first guide groove, 607-arc guide block, 608-micro-tilt support frame, 609-micro-tilt connecting rod, 6010-micro-tilt connecting plate, 6011-second micro-tilt motor, 6012-micro-tilt driving gear, 6013-micro-tilt driven gear, 6014-second guide groove, 6015-guide cap rod;

[0059] 701-working platform body, 702-suction hole, 703-external pipe;

[0060] 901-clamping bottom piece, 902-first rubber pad, 903-handling part, 904-position locking bolt, 905-cylinder fixing bottom piece, 906-clamping cylinder, 907-pressing piece, 908-second rubber pad. DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0062] Embodiment 1:

[0063] Combination Figure 1-2 The normal correction calibration device for assisting the laser source shown is mainly composed of a laser cutting machine and a normal correction calibration device that cooperates with the laser cutting machine. The laser cutting machine is the core equipment that provides the laser source in the entire processing process, and the normal correction calibration device that closely cooperates with the laser cutting machine plays a vital auxiliary role, which is used to accurately adjust the normal direction that cooperates with the laser source to ensure high precision and high quality of laser processing.

[0064] Specifically, the normal correction calibration device includes a correction calibration body 1, which serves as the basic supporting structure of the entire device and provides a stable platform for the installation and operation of subsequent components. A horizontal moving component 2 is embedded on the upper surface of the correction calibration body 1. The existence of the horizontal moving component 2 enables the subsequent components arranged thereon to be flexibly adjusted in the horizontal direction to meet the requirements for the position of the laser source under different processing needs. A moving platform 3 is installed on the horizontal moving component 2, and a horizontal swing component 4 is arranged on the moving platform 3. The horizontal swing component 4 can make the parts installed thereon swing in the horizontal direction, so as to further adjust the position of the laser source on the horizontal plane, so that it can be more accurately aligned with the specific part of the object to be processed. The horizontal swing component 4 is connected to a longitudinal swing component 5 that matches it. The function of the longitudinal swing component 5 is to realize the swing adjustment in the vertical direction. By working in coordination with the horizontal swing component 4, the irradiation direction of the laser source can be coordinated from both horizontal and vertical dimensions. Control, so that it can better adapt to the surfaces to be processed of different shapes and positions. A micro-tilt component 6 is arranged on the longitudinal swing component 5. The function of the micro-tilt component 6 is to adjust the tilt of the working platform 7 at a small angle. This fine-tuning function is particularly important for some scenes with extremely high requirements on processing accuracy. It can ensure that the incident angle of the laser source coincides with the normal height of the surface of the object to be processed, thereby improving the fineness and effect of the processing. A working platform 7 is installed on the micro-tilt component 6. The working platform 7 is the place where the object to be processed is placed. A laser angle sensor 8 is arranged at one end of the upper surface of the working platform 7. The laser angle sensor 8 can monitor the angle information of the laser source in real time and feed the data back to the control system so as to make corresponding component adjustments in time to ensure that the angle of the laser source is always in the best state during the processing. In addition, a number of groups of clamping mechanisms 9 are arranged on the outer wall of the working platform 7. The main function of these clamping mechanisms 9 is to firmly fix the object to be processed to prevent the object from being displaced during the processing, thereby ensuring the accuracy and stability of the processing.

[0065] In this embodiment, refer to Figure 3-4The horizontal moving assembly 2 shown is a key part for realizing flexible movement of the device in the horizontal direction. Its specific structure includes a horizontal moving body 201 semi-embedded in the upper surface of the correction and calibration body 1. The horizontal moving body 201 is a component with a specific cavity structure. Two groups of horizontal moving guide rails 202 are relatively arranged in its cavity. The two groups of horizontal moving guide rails 202 are parallel to each other and precisely positioned, providing a stable guiding basis for the entire horizontal movement process. Horizontal moving sliders 203 are slidably arranged on the two groups of horizontal moving guide rails 202. A horizontal moving member 204 is fixedly arranged between the two groups of horizontal moving sliders 203. The horizontal moving member 204 is a key structure for connecting the two horizontal moving sliders 203 and carrying the upper components, and plays an important role in transmitting power and supporting. Between the two groups of horizontal moving guide rails 202, two groups of horizontal driving wheels 205 are rotatably arranged, wherein a horizontal driving motor 206 that drives the rotation of one of the horizontal driving wheels 205 is arranged at the bottom. The horizontal driving motor 206 serves as a power source and can be used for The horizontal driving wheel 205 provides a stable and controllable power output. The two sets of horizontal driving wheels 205 are matched with each other through a rubber pull belt 207. The rubber pull belt 207 has good elasticity and wear resistance, can maintain stability during the power transmission process, and effectively buffer the impact force that may be generated during the transmission process. The rubber pull belt 207 and the horizontal moving member 204 are matched with a clamping member 208. The design of the clamping member 208 can ensure that the connection between the rubber pull belt 207 and the horizontal moving member 204 is firm and reliable, so that the rotation of the horizontal driving wheel 205 can be accurately transmitted to the horizontal moving member 204, thereby driving the entire mobile platform 3 to move in the horizontal direction. In order to protect the internal structure of the horizontal moving component 2 and prevent external debris from entering, a cover plate 209 is arranged above the horizontal moving body 201. There is a gap between the cover plate 209 and the horizontal moving body 201. The setting of this gap not only ensures that the cover plate 209 will not interfere with the movement of the horizontal moving member 204 and other components, but also can play a protective role to a certain extent.

[0066] In order to ensure the safety and accuracy of the horizontal movement process, anti-collision parts 2010 are provided at the two sets of horizontal driving wheels 205. The anti-collision parts 2010 are made of high-strength and buffering materials, which can play an effective buffering and protective role when the horizontal moving part 204 accidentally moves to the extreme position. Limit sensors 2011 are provided at the anti-collision parts 2010. At the same time, induction plates 2012 that cooperate with the limit sensors 2011 are provided on the side walls at both ends of the horizontal moving part 204. The limit sensors 2011 and the induction plates 2012 together constitute an accurate limit detection system. When the horizontal moving part 204 moves to a position close to the extreme position, the induction plate 2012 will trigger the limit sensor 2011, thereby timely controlling the operation of the horizontal driving motor 206 to avoid a violent collision between the horizontal moving part 204 and the anti-collision parts 2010, thereby ensuring the safe and stable operation of the entire device.

[0067] In this embodiment, refer to Figure 5 The horizontal swing assembly 4 shown is a key component for realizing horizontal position adjustment in the whole auxiliary laser source normal correction calibration device, and includes a horizontal swing base 402, one end of which is rotatably arranged on the upper surface of the mobile platform 3 through a first pin shaft 401. The first pin shaft 401 is precisely processed and assembled, and can provide stable and flexible rotation support for the horizontal swing base 402, so that the horizontal swing base 402 can rotate smoothly around the first pin shaft 401 within a certain angle range, thereby laying a foundation for subsequent horizontal position adjustment. A horizontal swing motor 403 is arranged on the side wall of the horizontal swing base 402 relative to the first pin shaft 401. The horizontal swing motor 403 is The power source of the horizontal swing component 4 has been carefully selected and debugged, and has stable power output and precise speed control capabilities. A swing gear 404 is provided on the rotating shaft of the horizontal swing motor 403, and an arc-shaped rack 405 meshing with the swing gear 404 is provided at the swing gear 404. The arc-shaped rack 405 is designed to perfectly cooperate with the swing gear 404 to achieve effective power transmission and precise position control. The arc-shaped rack 405 is fixed to the upper surface of the mobile platform 3, and its fixing method is firm and reliable, which can ensure that the arc-shaped rack 405 always maintains a stable position during the operation of the horizontal swing component 4, thereby ensuring the meshing accuracy between the swing gear 404 and the arc-shaped rack 405;

[0068] When the horizontal swing motor 403 of this part is started, its rotating shaft drives the swing gear 404 to rotate. Since the swing gear 404 is meshed with the arc-shaped rack 405, the rotation of the swing gear 404 will be converted into the swing of the horizontal swing base 402 around the first pin 401. By accurately controlling the rotation and speed of the horizontal swing motor 403, the swing position of the horizontal swing base 402 can be accurately adjusted, and then the horizontal position of the subsequent components (such as the longitudinal swing component, etc.) installed on the horizontal swing base 402 can be accurately controlled, so that the irradiation direction of the laser source can be more accurately aligned with the specific part of the object to be processed on the horizontal plane, thereby improving the processing accuracy and effect.

[0069] In this embodiment, refer to Figure 5 The longitudinal swing component 5 shown is an important component for realizing vertical angle adjustment in the whole auxiliary laser source normal correction calibration device. The component includes bearings 501 respectively arranged on the two side walls of the horizontal swing base 402. The two groups of bearings 501 have been strictly screened and precisely installed, and have high-precision rotation performance and good load-bearing capacity, which can ensure that the second pin shaft 502 sleeved therein can be stably supported and guided to rotate during the operation of the device. A longitudinal swing motor 503 is arranged on the side wall of the horizontal swing base 402 located at one group of the second pin shafts 502. The longitudinal swing motor 503 is the power core of the longitudinal swing component 5. The rotating shaft of the longitudinal swing motor 503 and its adjacent second pin shaft 502 are connected through a coupling 504, and a longitudinal swing plate 505 is arranged between the two groups of second pin shafts 502.

[0070] When the longitudinal swing motor 503 of this part is started, its rotating shaft drives the adjacent second pin shaft 502 to rotate through the coupling 504, and then drives the longitudinal swing plate 505 to swing in the vertical direction around the second pin shaft 502. By accurately controlling the rotation angle and speed of the longitudinal swing motor 503, the swing angle of the longitudinal swing plate 505 can be accurately adjusted, so as to further cater to the irradiation direction of the laser source on the vertical plane, so that it can be more accurately close to the normal direction of the surface of the object to be processed, providing a strong guarantee for achieving high-precision laser processing.

[0071] In this embodiment, refer to Figure 6The micro-tilt component 6 shown is a key part for realizing precise adjustment of tiny angles in the whole auxiliary laser source normal correction calibration device. The component includes a micro-tilt bottom piece 601 with an arc-shaped cross section. The arc-shaped cross section design of the micro-tilt bottom piece 601 is verified through precise calculation and repeated tests. This unique shape can ensure the stability and strength of the structure while realizing tiny tilt adjustments. A guide tooth groove 602 is provided on the middle side wall of the micro-tilt bottom piece 601. An oblique threaded screw rod 603 meshing with the guide tooth groove 602 is provided on the guide tooth groove 602. Screw bases 604 for fixing the oblique threaded screw rod 603 are provided at both ends. The screw base 604 not only provides stable support for the oblique threaded screw rod 603, but also ensures the coaxiality and stability of the oblique threaded screw rod 603 during rotation. The screw base 604 is fixed to the bottom of the working platform 7, located at one of the A first micro-tilt motor 605 for driving the oblique threaded screw 603 to rotate is arranged on the outer side wall of the screw assembly base 604. The first micro-tilt motor 605 is the power source of the micro-tilt assembly 6 and can accurately control the rotation angle and speed of the oblique threaded screw 603. By accurately controlling the operation of the first micro-tilt motor 605, the inclination angle of the working platform 7 is adjusted so that the incident angle of the laser source and the normal height of the object surface coincide. First guide grooves 606 are provided on the side walls at both ends of the micro-tilt bottom member 601. An arc guide block 607 is arranged at the first guide groove 606. The arc guide block 607 is fixed to the bottom of the working platform 7. The matching accuracy of the arc guide block 607 and the first guide groove 606 is extremely high, which can ensure that it moves slightly along a predetermined trajectory during the tilt adjustment process to prevent deviation and shaking, thereby ensuring the accuracy and stability of the micro-tilt adjustment.

[0072] When the first micro-tilt motor 605 is started, the oblique threaded screw 603 is driven to rotate, and the oblique threaded screw 603 engages with the guide tooth groove 602 in the middle of the micro-tilt base 601. Under the guidance of the arc guide block 607 and the first guide groove 606, the precise fine-tuning of the inclination angle of the working platform 7 is achieved, providing a reliable guarantee for the high-precision processing of the laser source.

[0073] In this embodiment, refer to Figure 7The working platform 7 shown is a key component for carrying the object to be processed in the normal correction calibration device with an auxiliary laser source. The working platform 7 includes a working platform body 701. The working platform body 701 adopts a carefully designed internal hollow structure. This hollow structure not only effectively reduces the overall weight of the working platform body 701 and reduces the load during the operation of the device, but also provides space for the internal gas path or other line layout. A plurality of groups of suction holes 702 are evenly distributed on the upper surface of the working platform body 701. The evenly distributed design of these suction holes 702 can ensure that the adsorption force on the object to be processed is evenly distributed. Thereby improving the stability of object fixation, the suction hole 702 is in the shape of an inverted cone. This unique shape design plays an important role. The inverted cone-shaped suction hole 702 can form a stronger adsorption force when adsorbing objects, and it also helps to prevent the objects from sliding or shifting during the processing. In addition, the inverted cone-shaped structure can also reduce the entry of impurities or debris into the suction hole 702 to a certain extent, reduce the risk of blockage, and ensure the long-term stable operation of the adsorption function. Several groups of external pipes 703 are arranged on the bottom side wall of the working platform body 701. These external pipes 703 are connected to the suction holes 702 on the upper surface of the working platform body 701. They are important channels for connecting external vacuum equipment. By connecting the external pipes 703 to the external vacuum equipment, negative pressure can be formed at the suction hole 702, thereby achieving adsorption and fixation of the object to be processed.

[0074] In this embodiment, refer to Figure 8The clamping mechanism 9 shown as a key component includes a clamping base 901 that matches the side wall of the working platform 7. This matching design can ensure that the clamping base 901 is firmly installed on the side wall of the working platform 7. A first rubber pad 902 is intimately arranged on the inner wall of the clamping base 901. The first rubber pad 902 is made of high-quality rubber material with good elasticity and wear resistance. When the clamping base 901 contacts the working platform 7, the first rubber pad 902 can effectively increase the friction force and also protect the side wall of the working platform 7. A hand-held portion 903 is arranged on the outer wall of the clamping base 901. The design shape of the hand-held portion 903 conforms to the holding habit of human hands. The surface has been finely polished. The operator can easily hold the hand-held portion 903 and conveniently operate and move the clamping mechanism 9. A position locking bolt 904 is arranged on the side wall of the clamping base 901 located at the hand-held portion 903. The bolt 904 is an important safety guarantee component. When the clamping mechanism 9 is moved to a suitable position, the operator can tighten the position locking bolt 904 to firmly fix the clamping base 901 on the side wall of the working platform 7 to prevent it from being displaced due to external force during operation, thereby ensuring the stability and reliability of the clamping mechanism 9. A cylinder fixing base 905 is provided on the top of the clamping base 901. A clamping cylinder 906 is fixedly arranged in the cylinder fixing base 905. A pressing piece 907 is provided on the telescopic rod of the clamping cylinder 906. The shape and size of the pressing piece 907 have been optimized and designed to be in good contact with the surface of the clamped object. Under the action of the clamping cylinder 906, the pressing piece 907 can accurately apply pressure to the clamped object to achieve a firm clamping effect. A second rubber pad 908 is provided on the pressing piece 907. The second rubber pad 908 is also made of high-quality rubber material to avoid damage to the object during the clamping process.

[0075] A method for aligning and calibrating a normal correction calibration device using an auxiliary laser source, comprising the following steps:

[0076] S01: Preparation:

[0077] The object to be processed is placed on the working platform 7, and the suction hole 702 on the working platform 7 is connected to an external suction device through an external pipe 703 to fix the object on the upper surface of the working platform body 701 by suction. If the object needs additional fixation, the clamping mechanism 9 can be added, and the position of the clamping bottom member 901 can be adjusted through the handheld part 903 to make the first rubber pad 902 fit the object, and then the position locking bolt 904 is tightened, and then the clamping cylinder 906 is started to make the second rubber pad 908 on the pressing member 907 press down to contact the material for further fixation;

[0078] During the process, ensure that the laser cutting machine and the normal correction calibration device have been correctly connected and debugged, and the laser angle sensor 8 has been calibrated to accurately detect the laser angle;

[0079] S02: Horizontal movement adjustment:

[0080] According to the position of the object and the starting working position of the laser source, the horizontal driving motor 206 is started to drive the horizontal driving wheel 205 to rotate, and the horizontal moving member 204 is driven to slide on the horizontal moving slider 203 on the horizontal moving guide rail 202 through the rubber pull belt 207, so that the moving platform 3 moves the object horizontally to a suitable position;

[0081] When the induction plates 2012 at both ends of the horizontal moving member 204 approach the limit sensors 2011 at the anti-collision member 2010, the horizontal drive motor 206 will reduce the speed to prevent the horizontal moving member 204 from being damaged by collision. The anti-collision member 2010 is used for further protection during the process.

[0082] S03: Horizontal swing adjustment:

[0083] Start the horizontal swing motor 403, and the swing gear 404 on its rotating shaft rotates. Since it meshes with the arc-shaped rack 405 fixed on the upper surface of the mobile platform 3, it drives the horizontal swing base 402 to swing horizontally around the first pin 401, and adjusts the horizontal angle of the working platform 7 so that the irradiation direction of the laser source on the horizontal plane is more matched with the position on the surface of the object where work is required;

[0084] During operation, the rotation angle of the horizontal swing motor 403 is fine-tuned according to the laser source position information fed back by the laser angle sensor 8 to ensure the position accuracy in the horizontal direction;

[0085] S04: Longitudinal swing adjustment:

[0086] Start the longitudinal swing motor 503, and drive the second pin shaft 502 to rotate through the coupling 504, so that the longitudinal swing plate 505 swings in the vertical direction around the second pin shaft 502, and adjusts the longitudinal angle of the working platform 7, so as to adjust the irradiation direction of the laser source on the vertical plane to be closer to the normal direction of the object surface;

[0087] During operation, the rotation of the longitudinal swing motor 503 is precisely controlled based on the angle data detected by the laser angle sensor 8 to ensure the accuracy of the longitudinal angle;

[0088] S05: Micro-tilt adjustment:

[0089] The micro-tilt assembly 6 with the micro-tilt bottom member 601 structure is started to start the first micro-tilt motor 605 to drive the oblique threaded screw 603 to rotate, and in the process, it meshes with the guide tooth groove 602 on the middle side wall of the micro-tilt bottom member 601, and under the guidance of the arc surface guide block 607 and the first guide groove 606, the inclination angle of the working platform 7 is further fine-tuned, so that the normal line of the laser source and the normal line of the object surface are highly coincident;

[0090] S06: Laser Processing:

[0091] In the specific working process, through the coordinated work of various components accompanying the laser source at all times, for the processing of objects with uneven surfaces or the inner wall of pipe fittings (such as wheel hubs), the laser source can irradiate more accurately along the surface normal direction of the object to be processed, thereby improving the precision and effect of the processing and avoiding the difficulty in processing the hard-to-reach parts due to relying solely on the swing of the laser source;

[0092] In addition, during the processing, the data of the laser angle sensor 8 is continuously monitored. If an angle deviation is found, the above steps are repeated to make corresponding fine adjustments to ensure the processing quality;

[0093] S07: Processing completed and equipment reset:

[0094] After the processing is completed, the horizontal moving component 2 is started to move the processed object to one end of the correction calibration body 1, and the power of the laser cutting machine is turned off;

[0095] Release the clamping cylinder 906 of the clamping mechanism 9 and disconnect the external air extraction device, and remove the processed object;

[0096] Each component is reset to its initial position through the corresponding drive device to prepare for the next processing.

[0097] Embodiment 2: The micro-tilt assembly 6 in the embodiment 2 is improved on the basis of the above embodiment. The technical contents disclosed in the above embodiment are not described repeatedly, and the contents of the above disclosed embodiment also belong to the contents disclosed in the embodiment 2.

[0098] One embodiment of the present invention, in combination with Fig. 9A micro-tilt assembly 6 shown includes a micro-tilt support frame 608, which serves as the basic supporting component of the entire structure and provides a stable installation platform for subsequent components. A micro-tilt connecting rod 609 is rotatably arranged above the micro-tilt support frame 608 through precise bearings and other rotating components. This rotating connection method ensures that the micro-tilt connecting rod 609 can rotate flexibly, providing a movement basis for realizing the micro-tilt function. Micro-tilt connecting plates 6010 are arranged at both ends of the micro-tilt connecting rod 609. These micro-tilt connecting plates 6010 are firmly fixed to the bottom of the working platform 7 after precise processing and installation, thereby tightly combining the micro-tilt assembly 6 with the working platform 7. Two micro-tilt motors 6011, a micro-tilt driving gear 6012 is provided on the rotating shaft of the second micro-tilt motor 6011, and a micro-tilt driven gear 6013 is sleeved on the micro-tilt connecting rod 609. The two are meshed with each other through a precise tooth shape design, so that the rotational movement of the second micro-tilt motor 6011 can be effectively transmitted to the micro-tilt connecting rod 609, thereby realizing the driving of the micro-tilt action. In addition, a second guide groove 6014 is provided on the side wall of the micro-tilt connecting plate 6010, and a guide cap rod 6015 matching the second guide groove 6014 is provided on the outer side wall of the micro-tilt support frame 608. This guide structure can effectively limit the movement direction during the micro-tilt process, thereby ensuring the accuracy and stability of the micro-tilt action;

[0099] Compared with the first embodiment, the advantages of this embodiment are higher transmission efficiency and relatively faster response speed, while the disadvantages are that it occupies a large space height, and the gears may wear out after long-term use, affecting the transmission accuracy, and having higher requirements for installation accuracy. The advantage of the first embodiment is that it can provide a larger driving force, stable transmission, and good self-locking performance, and is more suitable for some occasions requiring a larger micro-tilt force. The disadvantage is that the manufacturing and installation costs are relatively high.

[0100] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0101] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for assisting a laser source in normal correction calibration, comprising a laser cutting machine, characterized in that: A normal correction and calibration device matching with the laser cutting machine is arranged below the laser cutting machine; The normal correction calibration device comprises a correction calibration body (1), a horizontal moving component (2) is embedded in the upper surface of the correction calibration body (1), a moving platform (3) is arranged on the horizontal moving component (2), a horizontal swing component (4) is arranged on the moving platform (3), a longitudinal swing component (5) matched therewith is arranged on the horizontal swing component (4), a micro-tilt component (6) is arranged on the longitudinal swing component (5), a working platform (7) is arranged on the micro-tilt component (6), a laser angle sensor (8) is arranged at one end of the upper surface of the working platform (7), and a plurality of groups of clamping mechanisms (9) are arranged on the outer side wall of the working platform (7).

2. The device for normal correction calibration using an auxiliary laser source according to claim 1, characterized in that: The horizontal moving assembly (2) is semi-embedded in a horizontal moving body (201) on the upper surface of the correction and calibration body (1); two sets of horizontal moving guide rails (202) are arranged relatively in the cavity of the horizontal moving body (201); horizontal moving sliders (203) are slidably arranged on the two sets of horizontal moving guide rails (202); a horizontal moving member (204) is fixedly arranged between the two sets of horizontal moving sliders (203); and two sets of horizontal driving wheels (204) are rotatably arranged between the two sets of horizontal moving guide rails (202). 205), a horizontal driving motor (206) is provided at the bottom of one of the horizontal driving wheels (205) to drive the horizontal driving wheel to rotate, the two groups of the horizontal driving wheels (205) are matched with each other via a rubber pull belt (207), the rubber pull belt (207) and the horizontal moving member (204) are matched with each other via a clamping member (208), a cover plate (209) is provided above the horizontal moving body (201), and a gap exists between the cover plate (209) and the horizontal moving body (201); Anti-collision parts (2010) are provided at both groups of the horizontal driving wheels (205), and limit sensors (211) are provided at the anti-collision parts (2010). Induction plates (2012) that cooperate with the limit sensors (2011) are provided on the side walls at both ends of the horizontal moving part (204).

3. The device for normal correction calibration using an auxiliary laser source according to claim 2, characterized in that: The horizontal swing assembly (4) comprises a horizontal swing base (402) one end of which is rotatably arranged on the upper surface of the mobile platform (3) via a first pin shaft (401); a horizontal swing motor (403) is arranged on the side wall of the horizontal swing base (402) relative to the first pin shaft (401); a swing gear (404) is arranged on the rotating shaft of the horizontal swing motor (403); an arc-shaped rack (405) meshing with the swing gear (404) is arranged at the swing gear (404); and the arc-shaped rack (405) is fixed to the upper surface of the mobile platform (3).

4. The device for normal correction calibration using an auxiliary laser source according to claim 3, characterized in that: The longitudinal swing assembly (5) comprises bearings (501) respectively arranged on the two side walls of the horizontal swing base (402), and the second pin shaft (502) is sleeved in the two groups of the bearings (501). A longitudinal swing motor (503) is arranged on the side wall of the horizontal swing base (402) located at one group of the second pin shafts (502). The rotation axis of the longitudinal swing motor (503) is connected to the adjacent second pin shaft (502) via a coupling (504), and a longitudinal swing plate (505) is arranged between the two groups of the second pin shafts (502).

5. The device for normal correction calibration using an auxiliary laser source according to claim 4, characterized in that: The micro-tilt assembly (6) comprises a micro-tilt bottom member (601) having an arc-shaped cross section, a guide tooth groove (602) being provided on a side wall in the middle of the micro-tilt bottom member (601), a helical threaded screw (603) being provided on the guide tooth groove (602) and being meshed with the guide tooth groove, screw bases (604) for fixing the helical threaded screw (603) being provided at both ends, the screw bases (604) being fixed to the bottom of the working platform (7), a first micro-tilt motor (605) for driving the helical threaded screw (603) to rotate being provided on an outer side wall of one group of the screw bases (604), first guide grooves (606) being provided on the side walls at both ends of the micro-tilt bottom member (601), an arc surface guide block (607) being provided at the first guide groove (606), and the arc surface guide block (607) being fixed to the bottom of the working platform (7).

6. The device for normal correction calibration using an auxiliary laser source according to claim 4, characterized in that: The micro-tilt assembly (6) comprises a micro-tilt support frame (608), a micro-tilt connecting rod (609) is rotatably arranged above the micro-tilt support frame (608), micro-tilt connecting plates (6010) are arranged at both ends of the micro-tilt connecting rod (609), the micro-tilt connecting plates (6010) are fixedly connected to the bottom of the working platform (7), a second micro-tilt motor (6011) is arranged on the micro-tilt support frame (608), and a rotating shaft of the second micro-tilt motor (6011) is arranged on the micro-tilt support frame (608). A micro-tilt driving gear (6012) is arranged on the micro-tilt connecting rod (609), a micro-tilt driven gear (6013) is sleeved on the micro-tilt connecting rod (609), the micro-tilt driving gear (6012) and the micro-tilt driven gear (6013) are meshed with each other, a second guide groove (6014) is opened on the side wall of the micro-tilt connecting plate (6010), and a guide cap rod (6015) matching with the second guide groove (6014) is arranged on the outer side wall of the micro-tilt supporting frame (608).

7. The device for normal correction calibration using an auxiliary laser source according to claim 5, characterized in that: The working platform (7) comprises a working platform body (701), the interior of the working platform body (701) is hollow, a plurality of groups of suction holes (702) are evenly distributed on the upper surface of the working platform body (701), the suction holes (702) are in the shape of an inverted cone, and a plurality of groups of external pipes (703) are arranged on the side wall of the bottom of the working platform body (701).

8. The device for normal correction calibration using an auxiliary laser source according to claim 7, characterized in that: The clamping mechanism (9) comprises a clamping bottom member (901) matched with the side wall of the working platform (7), the inner wall of the clamping bottom member (901) is provided with a first rubber pad (902), the outer wall of the clamping bottom member (901) is provided with a hand-held portion (903), the side wall of the clamping bottom member (901) located at the hand-held portion (903) is provided with a position locking bolt (904), the top of the clamping bottom member (901) is provided with a cylinder fixing bottom member (905), a clamping cylinder (906) is fixedly provided in the cylinder fixing bottom member (905), a pressing piece (907) is provided on the telescopic rod of the clamping cylinder (906), and a second rubber pad (908) is provided on the pressing piece (907).

9. The method for aligning and calibrating a normal correction calibration device using an auxiliary laser source according to claim 8, characterized in that: The steps involved are as follows: S01: Preparation: The object to be processed is placed on the working platform (7), and the suction hole (702) on the working platform (7) is used to connect an external vacuum device through the external pipe (703), so that the object is adsorbed and fixed on the upper surface of the working platform body (701); if the object needs additional fixation, the clamping mechanism (9) can be added, and the position of the clamping bottom member (901) can be adjusted through the handheld part (903) so that the first rubber pad (902) is attached to the object, and then the position locking bolt (904) is tightened, and then the clamping cylinder (906) is started to press the second rubber pad (908) on the pressing member (907) downward to contact the material for further fixation; During the process, it is ensured that the laser cutting machine and the normal correction calibration device have been correctly connected and debugged, and that the laser angle sensor (8) has been calibrated and can accurately detect the laser angle; S02: Horizontal movement adjustment: According to the position of the object and the starting working position of the laser source, the horizontal driving motor (206) is started, the driving horizontal driving wheel (205) is rotated, and the horizontal moving member (204) is driven to slide the horizontal moving slider (203) on the horizontal moving guide rail (202) through the rubber pull belt (207), so that the moving platform (3) moves the object horizontally to a suitable position; When the induction plates (2012) at both ends of the horizontal moving member (204) approach the limit sensors (2011) at the anti-collision member (2010), the horizontal drive motor (206) will reduce speed to prevent the horizontal moving member (204) from being damaged by collision, and the anti-collision member (2010) is used for further protection during the process; S03: Horizontal swing adjustment: The horizontal swing motor (403) is started, and the swing gear (404) on the rotating shaft thereof rotates, and since it meshes with the arc-shaped rack (405) fixed on the upper surface of the mobile platform (3), the horizontal swing base (402) is driven to swing horizontally around the first pin shaft (401), and the horizontal angle of the working platform (7) is adjusted so that the irradiation direction of the laser source on the horizontal plane is more matched with the position on the surface of the object where work is required; During operation, the rotation angle of the horizontal swing motor (403) is finely adjusted according to the laser source position information fed back by the laser angle sensor (8), thereby ensuring the position accuracy in the horizontal direction; S04: Longitudinal swing adjustment: Starting the longitudinal swing motor (503) to drive the second pin shaft (502) to rotate via the coupling (504), thereby causing the longitudinal swing plate (505) to swing in a vertical direction around the second pin shaft (502), adjusting the longitudinal angle of the working platform (7), and thereby adjusting the irradiation direction of the laser source on a vertical plane to be closer to the normal direction of the object surface; During operation, the rotation of the longitudinal swing motor (503) is accurately controlled based on the angle data detected by the laser angle sensor (8) to ensure the accuracy of the longitudinal angle; S05: Micro-tilt adjustment: The micro-tilt assembly (6) of the micro-tilt bottom piece (601) structure is used to start the first micro-tilt motor (605) to drive the oblique threaded screw (603) to rotate, and in the process, the micro-tilt screw (603) engages with the guide tooth groove (602) on the middle side wall of the micro-tilt bottom piece (601), and further fine-tune the inclination angle of the working platform (7) under the guiding action of the arc surface guide block (607) and the first guide groove (606) so that the normal line of the laser source and the normal line of the object surface are highly coincident; S06: Laser Processing: In the specific working process, through the coordinated work of various components accompanying the laser source at all times, for the processing of objects with uneven surfaces or the inner wall of pipe fittings (such as wheel hubs), the laser source can irradiate more accurately along the surface normal direction of the object to be processed, thereby improving the precision and effect of the processing and avoiding the difficulty in processing the hard-to-reach parts due to relying solely on the swing of the laser source; In addition, during the processing, the data of the laser angle sensor (8) is continuously monitored. If an angle deviation is found, the above steps are repeated to perform corresponding fine adjustments to ensure the processing quality; S07: Processing completed and equipment reset: After the processing is completed, the horizontal moving component (2) is started to move the processed object to one end of the correction and calibration body (1), and the power supply of the laser cutting machine is turned off; Loosening the clamping cylinder (906) of the clamping mechanism (9) and disconnecting the external air extraction device, and removing the processed object; Each component is reset to its initial position through the corresponding drive device to prepare for the next processing.

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