A normal correction calibration device assisted by a laser source and a method for correcting and calibrating the device

Abstract

The application discloses a kind of normal correction calibration device and its alignment calibration method of auxiliary laser source, including laser cutting machine, laser cutting machine below is provided with normal correction calibration device, it includes correction calibration main part, the upper surface of correction calibration main part is provided with horizontal movement component, horizontal movement component is provided with moving platform, moving platform is provided with horizontal swing component, horizontal swing component is provided with longitudinal swing component, longitudinal swing component is provided with micro-inclination component, micro-inclination component is provided with work platform, the upper surface of work platform is provided with laser angle sensor, the outer wall of work platform is provided with several groups of clamping mechanisms, the normal correction calibration device provided in the application works with laser source working process synchronously, when the uneven object or pipe inner wall (such as hub) is processed, only rely on laser source swing is difficult to handle the part that is difficult to reach in detail, improve the fineness and effect of processing, guarantee the processing quality.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser cutting machine production, and particularly relates to a normal line correction and calibration device for assisting a laser source and a righting and calibration method thereof. BACKGROUND

[0002] In the field of laser processing, the accuracy of the normal line between the laser source and the object processing site plays a crucial role in ensuring the processing quality and precision. With the continuous development of manufacturing industry, higher requirements are put forward for the calibration and control of the laser source.

[0003] At present, there are some technical solutions about laser calibration devices and methods. For example, document CN115156660B discloses an auxiliary device and a calibration method for laser welding process light beam calibration. The technical solution mainly solves the problem that the device can provide additional vertical height compensation to adapt to the height of the welding material, calibrate the laser light beam to match the area of the welding material through comparison of the spot size, and provide an effective reference for light beam focusing, thereby solving the deviation problem of laser welding and ensuring the welding quality and processing efficiency.

[0004] However, in the long-term actual use process, it is found that the above-mentioned prior art has some obvious defects. When facing the processing of some uneven surface objects or pipe inner walls (such as wheel hubs), the device can only provide additional vertical height compensation and cannot further adjust in a timely and flexible manner. In detail, due to the complex surface shape of these special workpieces, the laser source is limited in swinging to match the surface of the object, and the incident angle will be deviated in some difficult-to-reach parts, at which time the incident spot of the light source is not in the best working state, resulting in insufficient detail in subsequent processing and insufficient processing precision, which cannot meet the high-quality processing requirements.

[0005] In addition, with the adjustment of the device and the laser source, the existing device is not fixed effectively. During the adjustment of the workpiece, the object is easy to produce slight displacement, which not only affects the accuracy of laser processing, but also may cause deviation in the processing process, reducing the 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 a normal line correction and calibration device for assisting a laser source and a righting and calibration method thereof which can effectively solve the above-mentioned problems. SUMMARY

[0007] The present application aims at providing a normal correction calibration device and a normal correction calibration method for assisting laser source to solve the problems of the existing auxiliary device for laser working process beam calibration, the deviation of incident angle caused by the limited swing of laser source when facing the surface complex workpiece processing, the lack of detailed compensation correction calibration and precision, and the displacement of workpiece during cooperative adjustment, which affects the processing quality and efficiency.

[0008] The present application realizes the above-mentioned purpose by the following technical scheme: a normal correction calibration device for assisting laser source, comprising a laser cutting machine, and a normal correction calibration device matched with the laser cutting machine arranged below the laser cutting machine.

[0009] The normal correction calibration device comprises a correction calibration main body, a horizontal moving assembly embedded on the upper surface of the correction calibration main body, a moving platform arranged on the horizontal moving assembly, a horizontal swing assembly arranged on the moving platform, a longitudinal swing assembly matched with the horizontal swing assembly arranged on the longitudinal swing assembly, a micro-inclination assembly arranged on the longitudinal swing assembly, a work platform arranged on the micro-inclination assembly, a laser angle sensor arranged on one end of the upper surface of the work platform, and a plurality of clamping mechanisms arranged on the outer wall of the work platform.

[0010] Further, the horizontal moving assembly is a horizontal moving main body embedded on the upper surface of the correction calibration main body, two groups of horizontal moving guide rails are arranged oppositely in the cavity of the horizontal moving main body, horizontal moving sliders are slidably arranged on the two groups of horizontal moving guide rails, a horizontal moving piece is fixedly arranged between the two groups of horizontal moving sliders, two groups of horizontal drive wheels are rotatably arranged between the two groups of horizontal moving guide rails, a horizontal drive motor is arranged at the bottom of one of the horizontal drive wheels to drive the rotation thereof, the two groups of horizontal drive wheels are matched through a rubber pull belt, the rubber pull belt and the horizontal moving piece are matched through a clamping piece, a cover plate is arranged above the horizontal moving main body, and a gap exists between the cover plate and the horizontal moving main body.

[0011] Anti-collision pieces are arranged at the two groups of horizontal drive wheels, limit sensors are arranged at the anti-collision pieces, and sensing plates matched with the limit sensors are arranged on the side walls at both ends of the horizontal moving piece.

[0012] Further, the horizontal swing assembly comprises a horizontal swing base rotatably arranged 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 opposite to the first pin shaft, a swing gear is arranged on the rotating shaft of the horizontal swing motor, an arc-shaped gear rack engaged with the swing gear is arranged at the swing gear, and the arc-shaped gear rack is fixed on the upper surface of the moving platform.

[0013] Further, the longitudinal swing assembly comprises bearings arranged on the side walls of the horizontal swing base, respectively, and a second pin shaft is sleeved in each of the bearings, a longitudinal swing motor is arranged on the side wall of the horizontal swing base at one of the second pin shafts, a shaft of the longitudinal swing motor is connected with the second pin shaft adjacent to the shaft through a shaft coupling, and a longitudinal swing plate is arranged between the two second pin shafts.

[0014] Further, the micro-inclination assembly comprises a micro-inclination base with a circular arc cross section, a guide tooth groove is arranged on the middle side wall of the micro-inclination base, a slant screw rod engaged with the guide tooth groove is arranged on the guide tooth groove, screw rod bases for fixing the slant screw rod are arranged at the two ends of the slant screw rod, the screw rod bases are fixed on the bottom of the working platform, a first micro-inclination motor for driving the slant screw rod to rotate is arranged on the outer side wall of one of the screw rod bases, first guide grooves are formed in the end side walls of the micro-inclination base, and arc surface guide blocks are arranged at the first guide grooves and fixed on the bottom of the working platform.

[0015] Further, the micro-inclination assembly comprises a micro-inclination support frame, a micro-inclination connecting rod is rotatably arranged above the micro-inclination support frame, micro-inclination connecting plates are arranged at the two ends of the micro-inclination connecting rod, the micro-inclination connecting plates are fixedly connected with the bottom of the working platform, a second micro-inclination motor is arranged on the micro-inclination support frame, a micro-inclination driving gear is arranged on a rotating shaft of the second micro-inclination motor, a micro-inclination driven gear is sleeved on the micro-inclination connecting rod, the micro-inclination driving gear and the micro-inclination driven gear are engaged with each other, a second guide groove is formed in the side wall of the micro-inclination connecting plate, and a guide cap rod matched with the second guide groove is arranged on the outer side wall of the micro-inclination support frame.

[0016] Further, the working platform comprises a working platform body, the working platform body is hollow inside, a plurality of groups of suction holes are uniformly arranged on the upper surface of the working platform body, the suction holes are inverted conical, and a plurality of groups of outer connecting pipe are arranged on the side walls of the bottom of the working platform body.

[0017] Further, the clamping mechanism comprises a clamping base matched with the side wall of the working platform, a first rubber pad is arranged on the inner wall of the clamping base, a hand holding part is arranged on the outer side wall of the clamping base, a position locking bolt is arranged on the side wall of the clamping base at the hand holding part, a cylinder fixing base is arranged on the top of the clamping base, a clamping cylinder is fixedly arranged in the cylinder fixing base, a pressing part is arranged on the telescopic rod of the clamping cylinder, and a second rubber pad is arranged on the pressing part.

[0018] A method for assisting a laser source to correct and calibrate a normal correction and calibration device, comprising the following operation steps:

[0019] S01: Preparation:

[0020] Place the object to be processed on the workbench, use the suction holes on the workbench to connect to the external suction equipment through the outer connecting pipe, and fix the object on the upper surface of the workbench body. If additional fixation is required, operate the clamping mechanism, adjust the position of the clamping bottom through the hand-held part, make the first rubber pad fit the object, then tighten the position locking bolt, and then start the clamping cylinder to make the second rubber pad on the lower pressing part press the material for further fixation.

[0021] During the process, ensure that the laser cutting machine and the normal correction calibration device are correctly connected and adjusted, and the laser angle sensor has been calibrated to 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, start the horizontal drive motor, rotate the horizontal drive wheel, and drive the horizontal movement part to slide on the horizontal movement slider on the horizontal movement guide rail, so that the moving platform moves the object horizontally to the appropriate position.

[0024] When the sensing plates at both ends of the horizontal movement part approach the limit sensor at the anti-collision part, the horizontal drive motor will work at a reduced speed to prevent the horizontal movement part from colliding and being damaged. The anti-collision part is used for further protection during the process.

[0025] S03: Horizontal swing adjustment:

[0026] Start the horizontal swing motor, and rotate the swing gear on its rotating shaft. Since it is engaged with the arc-shaped rack fixed on the upper surface of the moving platform, it drives the horizontal swing base to swing horizontally around the first pin shaft, adjusts the horizontal angle of the workbench, and makes the irradiation direction of the laser source more matched with the position on the object surface that needs to be worked on the horizontal plane.

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

[0028] S04: Longitudinal swing adjustment:

[0029] Start the longitudinal swing motor, and rotate the second pin shaft through the coupling, so that the longitudinal swing plate swings around the second pin shaft in the vertical direction, adjusts the longitudinal angle of the workbench, and adjusts the irradiation direction of the laser source to be closer to the normal direction of the object surface on the vertical plane.

[0030] In the working process, the rotation of the longitudinal swing motor is accurately controlled according to the angle data detected by the laser angle sensor, so as to ensure the accuracy of the longitudinal angle.

[0031] S05: Micro-tilt adjustment:

[0032] The micro-tilt assembly adopting the micro-tilt bottom structure starts the first micro-tilt motor to drive the inclined screw rod to rotate, and in the process, the inclined screw rod is in meshing action 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 cooperating with the first guide groove, the tilt angle of the working platform is further adjusted, so that the normal line of the laser source is highly coincided with the normal line of the surface of the object.

[0033] S06: Laser processing:

[0034] In the specific working process, through the coordinated work of each component with the laser source at all times, for the object or pipe inner wall (such as a hub) with uneven surface, the laser source can more accurately irradiate along the surface normal direction of the object processing position, improve the processing precision and effect, and avoid the difficulty in detailed processing of inaccessible parts due to only relying on laser source swing.

[0035] In addition, during the processing, the data of the laser angle sensor is continuously monitored, and if the angle deviation is found, the above steps are repeated for corresponding adjustment to ensure the processing quality.

[0036] S07: Processing completion and equipment reset:

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

[0038] The clamping cylinder of the clamping mechanism is loosened, and the external air extraction equipment is disconnected, and the processed object is removed.

[0039] Each component is reset to the initial position by the corresponding driving device, ready for the next processing.

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

[0041] 1. Flexible and accurate detailed adjustment: Through the mutual adjustment of each component, the working platform can be flexibly adjusted from multiple dimensions, so that the incident angle and position of the laser source are adjusted for complex-shaped workpieces such as objects with uneven surfaces or pipe inner walls (such as hubs), so that the incident of the laser source is highly coincided with the normal line of the working position of the object surface, and the incident spot of the laser source is in the best working state.

[0042] 2, Stable workpiece fixing: the suction holes on the workbench can be connected with external suction equipment through the outer connecting pipeline, so that the workpiece is fixed by suction, and the clamping mechanism on the outer wall cooperates with the suction to stably and reliably fix the workpiece, so that the slight displacement of the workpiece during adjustment of the laser source is avoided, and the processing quality and efficiency are improved;

[0043] 3, Real-time monitoring and feedback: the laser angle sensor arranged at one end of the upper surface of the workbench can monitor the angle data of the laser source in real time, and once the angle deviation is found during the processing, the corresponding adjustment steps can be repeated according to the data fed back by the sensor, so that the real-time monitoring and accurate control of the processing process are realized, and the stability of the processing quality is further ensured;

[0044] 4, Convenient and efficient operation: the components of the present application have clear operation process and control basis, so that the operator can quickly start and accurately operate, improve the work efficiency, and reduce the operation difficulty and error rate. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 is a schematic view of the present application;

[0046] Figure 2 is a structural schematic view of the normal correction calibration device of the present application;

[0047] Figure 3 is a schematic view of the internal structure of the horizontal moving assembly of the present application;

[0048] Figure 4 is a schematic view of the enlarged structure of part A of the present application;

[0049] Figure 5 is a schematic view of the structure on the horizontal swing piece of the present application;

[0050] Figure 6 is a schematic view of the structure of the micro-inclination assembly of the present application;

[0051] Figure 7 is a schematic view of the structure of the workbench of the present application;

[0052] Figure 8 is a schematic view of the structure of the clamping mechanism of the present application;

[0053] Figure 9 is a schematic view of the structure of the second embodiment of the present application.

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

[0055] 201-horizontal moving main body, 202-horizontal moving guide rail, 203-horizontal moving slider, 204-horizontal moving piece, 205-horizontal drive wheel, 206-horizontal drive motor, 207-rubber pull belt, 208-clamping piece, 209-cover plate, 2010-anti-collision piece, 2011-limit sensor, 2012-sensing plate;

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

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

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

[0059] 701-working platform main body, 702-suction hole, 703-outer connecting pipe;

[0060] 901-clamping bottom piece, 902-first rubber pad, 903-handheld 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 application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0062] Embodiment one:

[0063] In combination with Figures 1-2 The normal line correction and calibration device shown in the figure is mainly composed of a laser cutting machine and a normal line correction and calibration device matched with the laser cutting machine. The laser cutting machine is the core equipment providing a laser source in the whole processing process, and the normal line correction and calibration device closely matched with the laser cutting machine plays an important auxiliary role. The normal line correction and calibration device is used for accurately adjusting the normal line direction matched with the laser source, so as to ensure the high precision and high quality of laser processing.

[0064] Specifically, the normal correction calibration device comprises a correction calibration main body 1, which serves as the basic support structure of the entire device and provides a stable platform for the installation and operation of subsequent components; a horizontal movement component 2 is embedded on the upper surface of the correction calibration main body 1, which enables the subsequent components arranged thereon to be flexibly adjusted in the horizontal direction to adapt to the requirements of the position of the laser source under different processing requirements; a moving platform 3 is installed on the horizontal movement component 2, and a horizontal swing component 4 is arranged on the moving platform 3, which can swing the components installed thereon in the horizontal direction, thereby further adjusting the position of the laser source on the horizontal plane to enable it to more accurately align with the specific parts of the object to be processed; a longitudinal swing component 5 is connected to the horizontal swing component 4, which functions to realize swing adjustment in the vertical direction, and through the cooperative work with the horizontal swing component 4, the irradiation direction of the laser source can be cooperatively controlled from two dimensions of horizontal and vertical, so as to better adapt to the surface to be processed with different shapes and positions; a micro-tilt component 6 is arranged on the longitudinal swing component 5, which functions to adjust the work platform 7 to be slightly inclined at an angle, and this fine adjustment function is particularly important for some scenes with extremely high requirements for processing precision, which can ensure that the incident angle of the laser source is highly consistent with the normal of the surface of the object to be processed, thereby improving the delicacy and effect of processing; a work platform 7 is installed on the micro-tilt component 6, which is the place where the object to be processed is placed; a laser angle sensor 8 is arranged on one end of the upper surface of the work platform 7, which can monitor the angle information of the laser source in real time and feed back the data to the control system, so as to timely adjust the corresponding components and ensure that the angle of the laser source is always in the best state during the processing process; in addition, a plurality of clamping mechanisms 9 are arranged on the outer wall of the work platform 7, which mainly functions to stably fix the object to be processed to prevent displacement of the object during processing, thereby ensuring the accuracy and stability of processing.

[0065] The present embodiment is described with reference to Figures 3-4The horizontal moving assembly 2 shown as the key part to realize the flexible movement of the device in the horizontal direction, the specific structure includes a horizontal moving body 201 semi-embedded on the upper surface of the correction and calibration main body 1, the horizontal moving body 201 is a component with a specific cavity structure, and two sets of horizontal moving guide rails 202 are oppositely arranged in the cavity, the two sets of horizontal moving guide rails 202 are parallel to each other and accurately positioned, providing a stable guiding basis for the entire horizontal moving process, and the horizontal moving guide rails 202 are slidably provided with horizontal moving sliders 203, and the horizontal moving sliders 203 are fixedly provided with a horizontal moving piece 204 between the two sets of horizontal moving guide rails 202, the horizontal moving piece 204 is a key structure connecting the two horizontal moving sliders 203 and bearing the components above, and plays an important role in power transmission and support, and between the two sets of horizontal moving guide rails 202, two sets of horizontal drive wheels 205 are rotatably arranged, wherein a horizontal drive motor 206 is arranged at the bottom of one of the horizontal drive wheels 205 to drive the rotation of the horizontal drive wheel 205, the horizontal drive motor 206 serves as a power source and can provide stable and controllable power output for the horizontal drive wheel 205, the two sets of horizontal drive wheels 205 are matched by a rubber pull belt 207, the rubber pull belt 207 has good elasticity and wear resistance, can keep stable during power transmission, and effectively buffers the impact force that may be generated during transmission, the rubber pull belt 207 is matched with the horizontal moving piece 204 through a clamping piece 208, the design of the clamping piece 208 can ensure that the connection between the rubber pull belt 207 and the horizontal moving piece 204 is firm and reliable, so that the rotation of the horizontal drive wheel 205 can be accurately transmitted to the horizontal moving piece 204, and then drive the entire moving platform 3 to move in the horizontal direction, in order to protect the internal structure of the horizontal moving assembly 2 and prevent foreign matters from entering, a cover plate 209 is arranged above the horizontal moving body 201, and there is a gap between the cover plate 209 and the horizontal moving body 201, the gap ensures that the cover plate 209 does not interfere with the movement of the horizontal moving piece 204 and other components, and also plays 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 both 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 protection 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, sensing 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 sensing plates 2012 together constitute an accurate limit detection system. When the horizontal moving part 204 moves close to the limit position, the sensing plate 2012 will trigger the limit sensor 2011, thereby timely controlling the operation of the horizontal driving motor 206, avoiding violent collision between the horizontal moving part 204 and the anti-collision parts 2010, and ensuring the safe and stable operation of the entire device.

[0067] In this embodiment, see Figure 5 The horizontal swing assembly 4 shown is a key component for realizing horizontal position adjustment in the normal correction calibration device for the entire auxiliary laser source, 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 to 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 the foundation for subsequent horizontal position adjustment. A horizontal swing motor 403 is provided 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 assembly 4 has been carefully selected and debugged to have stable power output and precise speed control capabilities. A swing gear 404 is provided on the rotating shaft of the horizontal swing motor 403. An arc-shaped rack 405 is provided on the swing gear 404 to mesh with it. 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. 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 assembly 4, thereby ensuring the meshing accuracy between the swing gear 404 and the arc-shaped rack 405;

[0068] When the horizontal swing motor 403 is started, its rotating shaft drives the swing gear 404 to rotate. Since the swing gear 404 and the arc-shaped rack 405 are meshed with each other, 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 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, see Figure 5 The longitudinal swing assembly 5 shown is an important component for realizing vertical angle adjustment in the normal correction calibration device for the auxiliary laser source. The assembly 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 is 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 assembly 5. The rotating shaft of the longitudinal swing motor 503 and its adjacent second pin shaft 502 are connected by a coupling 504. 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, thereby further catering to the irradiation direction of the laser source on the vertical plane, making it 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, see Figure 6The micro-inclination assembly 6 is the key part of the entire auxiliary laser source for realizing the accurate adjustment of the micro angle in the normal correction calibration device. The micro-inclination base 601 has a circular arc cross section. The circular arc cross section of the micro-inclination base 601 is designed through precise calculation and repeated tests. The unique shape can realize the micro-inclination adjustment while ensuring the stability and strength of the structure. The guide tooth groove 602 is arranged on the middle side wall of the micro-inclination base 601. The inclined screw rod 603 is arranged in the guide tooth groove 602 and engaged with the guide tooth groove 602. The screw rod base 604 is arranged at both ends of the inclined screw rod 603 and used for fixing the inclined screw rod 603. The screw rod base 604 not only provides stable support for the inclined screw rod 603, but also ensures the coaxiality and stability of the inclined screw rod 603 during rotation. The screw rod base 604 is fixed to the bottom of the working platform 7. The first micro-inclination motor 605 is arranged on the outer side wall of one of the screw rod bases 604 and used for driving the inclined screw rod 603 to rotate. The first micro-inclination motor 605 is the power source of the micro-inclination assembly 6 and can accurately control the rotation angle and speed of the inclined screw rod 603. By accurately controlling the operation of the first micro-inclination motor 605, the inclination angle of the working platform 7 is adjusted, so that the incident angle of the laser source is highly consistent with the normal of the surface of the object. The first guide groove 606 is arranged on the side wall at both ends of the micro-inclination base 601. The arc surface guide block 607 is arranged at the first guide groove 606. The arc surface guide block 607 is fixed to the bottom of the working platform 7. The cooperation accuracy between the arc surface guide block 607 and the first guide groove 606 is very high. During the inclination adjustment, the arc surface guide block 607 can move along the predetermined track to prevent deviation and shaking, thereby ensuring the accuracy and stability of the micro-inclination adjustment.

[0072] When the first micro-inclination motor 605 is started, the inclined screw rod 603 is driven to rotate. The inclined screw rod 603 is engaged with the guide tooth groove 602 in the middle of the micro-inclination base 601. 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 accurately adjusted, thereby providing a reliable guarantee for the high-precision machining of the laser source.

[0073] In this embodiment, reference is made to Figure 7The work platform 7 shown as an auxiliary laser source performs normal correction calibration of the key component of the device that carries the object to be processed, and the work platform 7 includes a work platform body 701 which adopts a carefully designed hollow structure. This hollow structure not only effectively reduces the overall weight of the work platform body 701, thereby reducing the load during operation of the device, but also provides space for the internal air path or other line arrangement. A plurality of groups of suction holes 702 are uniformly distributed on the upper surface of the work platform body 701. The uniform distribution of the suction holes 702 can ensure that the suction force on the object to be processed is uniformly distributed, thereby improving the stability of the object fixation. The suction holes 702 are inverted conical in shape. This unique shape design plays an important role. The inverted conical suction holes 702 can form a stronger suction force when the object is suctioned, and at the same time, it is also helpful to prevent the object from sliding or moving during processing. In addition, the inverted conical structure can also reduce the risk of impurities or debris entering the inside of the suction holes 702 to a certain extent, thereby reducing the risk of blockage and ensuring the long-term stable operation of the suction function. A plurality of groups of outer link pipes 703 are arranged on the bottom side wall of the work platform body 701. These outer link pipes 703 are in communication with the suction holes 702 on the upper surface of the work platform body 701, and they are important channels for connecting external air extraction equipment. By connecting the outer link pipes 703 with the external air extraction equipment, a negative pressure can be formed at the suction holes 702, thereby achieving the suction and fixation of the object to be processed.

[0074] In this embodiment, reference is made to Figure 8The shown clamping mechanism 9 as a key component, contains with the work platform 7 side wall each other matching clamping bottom piece 901, this matching design can ensure that the clamping bottom piece 901 is stably installed on the side wall of the work platform 7, the inner wall of the clamping bottom piece 901 is provided with the first rubber pad 902, the first rubber pad 902 is made of high-quality rubber material with good elasticity and wear resistance, when the clamping bottom piece 901 contacts with the work platform 7, the first rubber pad 902 can effectively increase the friction, and also can protect the side wall of the work platform 7, the outer side wall of the clamping bottom piece 901 is provided with a hand-held part 903, the design shape of the hand-held part 903 accords with the holding habit of human hand, the surface is polished, the operator can easily hold the hand-held part 903, conveniently operate and move the clamping mechanism 9, the side wall of the clamping bottom piece 901 at the hand-held part 903 is provided with a position locking bolt 904, the position locking bolt 904 is an important safety guarantee part, when the clamping mechanism 9 is moved to the appropriate position, the operator can tighten the position locking bolt 904 to firmly fix the clamping bottom piece 901 on the side wall of the work platform 7, prevent displacement due to external force during work, ensure the stability and reliability of the clamping mechanism 9, the top of the clamping bottom piece 901 is provided with a cylinder fixing bottom piece 905, a clamping cylinder 906 is fixedly arranged in the cylinder fixing bottom piece 905, a lower pressing piece 907 is arranged on the telescopic rod of the clamping cylinder 906, the shape and size of the lower pressing piece 907 are optimized and designed, which can be in good contact with the surface of the clamped object, under the action of the clamping cylinder 906, the lower pressing piece 907 can accurately apply pressure to the clamped object to achieve firm clamping effect, the lower pressing piece 907 is provided with a second rubber pad 908, the second rubber pad 908 is also made of high-quality rubber material, to avoid damage to the object during clamping.

[0075] A method for assisting a laser source to correct and calibrate the normal alignment of a device, comprising the following steps:

[0076] S01: Preparation

[0077] Place the object to be processed on the work platform 7, connect the external suction device through the outer link pipeline 703 by the suction hole 702 on the work platform 7, and fix the object on the upper surface of the work platform main body 701, if the object needs additional fixation, the clamping mechanism 9 can be operated, the position of the clamping bottom piece 901 is adjusted through the hand-held part 903, the first rubber pad 902 is attached to the object, then the position locking bolt 904 is tightened, and then the clamping cylinder 906 is started, so that the second rubber pad 908 on the lower pressing piece 907 is pressed to contact the material for further fixation;

[0078] Ensure that the laser cutting machine and the normal line correction calibration device are correctly connected and debugged, and the laser angle sensor 8 is calibrated to accurately detect the laser angle during the process;

[0079] S02: Horizontal movement adjustment:

[0080] According to the position of the object and the starting working position of the laser source, start the horizontal drive motor 206 to drive the horizontal drive wheel 205 to rotate, and through the rubber pull belt 207 to drive the horizontal moving part 204 to slide on the horizontal moving slide 203 on the horizontal moving guide rail 202, so as to make the moving platform 3 move the object horizontally to the appropriate position;

[0081] When the induction plates 2012 at both ends of the horizontal moving part 204 approach the limit sensor 2011 at the anti-collision part 2010, the horizontal drive motor 206 will work at a reduced speed to prevent the horizontal moving part 204 from being damaged by collision, and the anti-collision part 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 the rotating shaft of the horizontal swing motor 403 rotates, and since it is engaged with the arc-shaped rack 405 fixed on the upper surface of the moving platform 3, it drives the horizontal swing base 402 to swing around the first pin shaft 401, adjusts the horizontal angle of the working platform 7, and makes the irradiation direction of the laser source more matched with the position to be worked on the surface of the object in the horizontal plane;

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

[0085] S04: Longitudinal swing adjustment:

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

[0087] During the working process, according to the angle data detected by the laser angle sensor 8, the rotation of the longitudinal swing motor 503 is accurately controlled to ensure the accuracy of the longitudinal angle;

[0088] S05: Micro-tilt adjustment:

[0089] The micro-inclination assembly 6 with the micro-inclination base 601 structure is started, the first micro-inclination motor 605 is started, the inclined screw rod 603 is driven to rotate, the inclined screw rod 603 is in meshing action with the guide tooth groove 602 on the middle side wall of the micro-inclination base 601 in the process, and the arc surface guide block 607 is guided under the cooperation of the first guide groove 606, the inclination angle of the working platform 7 is further adjusted, the normal line of the laser source is highly coincided with the normal line of the surface of the object, and the inclination angle of the working platform 7 is further adjusted.

[0090] S06: laser processing:

[0091] In the specific working process, through the coordinated work of each component with the laser source at all times, for the object or the inner wall (such as a hub) of a pipe with uneven surface, the laser source can more accurately irradiate along the surface normal direction of the object to be processed, improve the fineness and effect of processing, and avoid the difficulty in detailed processing of inaccessible parts due to only relying on laser source swing;

[0092] In addition, during the processing, the data of the laser angle sensor 8 is continuously monitored, if the angle deviation is found, the above steps are repeated for corresponding adjustment, and the processing quality is ensured.

[0093] S07: processing completion and equipment reset:

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

[0095] The clamping cylinder 906 of the clamping mechanism 9 is loosened, the external air extraction equipment is disconnected, and the processed object is taken out.

[0096] Each component is reset to the initial position through the corresponding driving device, and is ready for the next processing.

[0097] In the second embodiment, the micro-inclination assembly 6 is improved on the basis of the above embodiment, the technical content disclosed in the above embodiment is not repeatedly described, and the content of the above disclosed embodiment also belongs to the content disclosed in the second embodiment.

[0098] In one embodiment of the application, the micro-inclination assembly 6 is improved on the basis of the above embodiment, the technical content disclosed in the above embodiment is not repeatedly described, and the content of the above disclosed embodiment also belongs to the content disclosed in the second embodiment. Figure 9The micro-inclination assembly 6 shown comprises a micro-inclination support frame 608, which serves as a base support component of the entire structure and provides a stable mounting platform for subsequent components. Above the micro-inclination support frame 608, a micro-inclination connecting rod 609 is rotatably arranged through precise bearings and other rotating components. This rotating connection ensures that the micro-inclination connecting rod 609 can rotate flexibly, providing the basis for the micro-inclination function. The two ends of the micro-inclination connecting rod 609 are provided with micro-inclination link plates 6010, which are firmly fixed and connected to the bottom of the workbench 7 through precise processing and installation, thereby tightly combining the micro-inclination assembly 6 with the workbench 7. A second micro-inclination motor 6011 is arranged on the micro-inclination support frame 608, and a micro-inclination drive gear 6012 is arranged on the rotating shaft of the second micro-inclination motor 6011. A micro-inclination driven gear 6013 is sleeved on the micro-inclination connecting rod 609, and the two are meshed with each other through precise tooth design, so that the rotating motion of the second micro-inclination motor 6011 can be effectively transmitted to the micro-inclination connecting rod 609, realizing the driving of the micro-inclination action. In addition, a second guide groove 6014 is formed in the side wall of the micro-inclination link plate 6010, and a guide cap rod 6015 matched with the second guide groove 6014 is arranged on the outer side wall of the micro-inclination support frame 608. This guide structure can effectively limit the movement direction during micro-inclination, ensuring the accuracy and stability of the micro-inclination action.

[0099] Compared with the first embodiment, the advantages of this embodiment are higher transmission efficiency and relatively faster response speed, and the disadvantages are larger space height occupation and possible wear of the gear during long-term use, which affects the transmission accuracy and requires higher installation accuracy. The advantages of the first embodiment are that it can provide larger driving force, stable transmission and good self-locking performance, and it is more suitable for occasions that require larger micro-inclination force. The disadvantage is that the manufacturing and installation cost is relatively high.

[0100] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0101] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A device for assisting a laser source in normal line correction and calibration, comprising a laser cutting machine, characterized in that: A normal correction and calibration device is provided 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 provided on the horizontal moving component (2), a horizontal swing component (4) is provided on the moving platform (3), a longitudinal swing component (5) matched therewith is provided on the horizontal swing component (4), a micro-tilt component (6) is provided on the longitudinal swing component (5), a working platform (7) is provided on the micro-tilt component (6), a laser angle sensor (8) is provided at one end of the upper surface of the working platform (7), and a plurality of clamping mechanisms (9) are provided on the outer side wall of the working platform (7); 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 on the swing gear (404); and the arc-shaped rack (405) is fixed to the upper surface of the mobile platform (3); The longitudinal swing assembly (5) comprises bearings (501) respectively arranged on the two side walls of the horizontal swing base (402), the second pin shaft (502) being sleeved in both sets of the bearings (501), a longitudinal swing motor (503) being arranged on the side wall of the horizontal swing base (402) at one set of the second pin shafts (502), the rotating shaft of the longitudinal swing motor (503) being connected to the adjacent second pin shaft (502) via a coupling (504), and a longitudinal swing plate (505) being arranged between the two sets of the second pin shafts (502); The micro-tilt assembly (6) includes a micro-tilt bottom piece (601) with an arc-shaped cross-section, a guide tooth groove (602) is provided on the middle side wall of the micro-tilt bottom piece (601), and an oblique threaded screw rod (603) engaged with the guide tooth groove (602) is provided on the guide tooth groove (602), and screw rod bases (604) for fixing the oblique threaded screw rod (603) are provided at both ends of the oblique threaded screw rod (603), and the screw rod base (604) is fixed to the bottom of the working platform (7), and a first micro-tilt motor (605) for driving the oblique threaded screw rod (603) to rotate is provided on the outer side wall of one group of the screw rod bases (604), and a first guide groove (606) is provided on the side walls at both ends of the micro-tilt bottom piece (601), and an arc surface guide block (607) is provided at the first guide groove (606), and the arc surface guide block (607) is fixed to the bottom of the working platform (7).

2. The device for normal correction and calibration of an auxiliary laser source according to claim 1, characterized in that: The horizontal moving assembly (2) is half-embedded in the horizontal moving body (201) on the upper surface of the correction calibration body (1), two sets of horizontal moving guide rails (202) are relatively arranged in the cavity of the horizontal moving body (201), and horizontal moving sliders (203) are slidably arranged on the two sets of horizontal moving guide rails (202), and 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 both anti-collision parts (2010). Induction plates (212) 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 and calibration of an auxiliary laser source according to claim 2, characterized in that: The micro-tilt assembly (6) includes a micro-tilt support frame (608), a micro-tilt connecting rod (609) is rotatably provided above the micro-tilt support frame (608), micro-tilt connecting plates (6010) are provided 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 provided on the micro-tilt support frame (608), and the rotating shaft of the second micro-tilt motor (6011) is A micro-tilt driving gear (6012) is provided 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 provided on the side wall of the micro-tilt connecting plate (6010), and a guide cap rod (6015) that matches the second guide groove (6014) is provided on the outer side wall of the micro-tilt supporting frame (608).

4. The device for normal correction and calibration of an auxiliary laser source according to claim 3, 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 provided on the side wall of the bottom of the working platform body (701).

5. The device for normal correction and calibration of an auxiliary laser source according to claim 4, characterized in that: The clamping mechanism (9) includes a clamping base (901) matched with the side wall of the working platform (7), the inner wall of the clamping base (901) is provided with a first rubber pad (902), the outer wall of the clamping base (901) is provided with a hand-held portion (903), the side wall of the clamping base (901) located at the hand-held portion (903) is provided with a position locking bolt (904), the top of the clamping base (901) is provided with a cylinder fixing base (905), a clamping cylinder (906) is fixedly provided in the cylinder fixing base (905), a downward pressing member (907) is provided on the telescopic rod of the clamping cylinder (906), and a second rubber pad (908) is provided on the downward pressing member (907).

6. The method for aligning and calibrating a normal correction device using an auxiliary laser source according to claim 5, 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 the external suction equipment 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 base (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 part (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 are correctly connected and debugged, and that the laser angle sensor (8) is 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 to drive the horizontal driving wheel (205) to rotate, 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 (211) at the anti-collision member (2010), the horizontal drive motor (206) will reduce its 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. Since the swing gear (404) is engaged 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 (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 the work is required; 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), 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 the 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 the vertical plane to be closer to the normal direction of the object surface; 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), thereby ensuring the accuracy of the longitudinal angle; S05: Micro tilt adjustment: The micro-tilt assembly (6) of the micro-tilt bottom member (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 motor engages with the guide tooth groove (602) on the middle side wall of the micro-tilt bottom member (601), and under the guiding action of the arc surface guide block (607) and the first guide groove (606) in coordination, the tilt 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; S06: Laser processing: During the specific working process, through the coordinated work of various components accompanying the laser source at all times, when processing objects with uneven surfaces or the inner wall of pipes, the laser source can more accurately irradiate along the surface normal direction of the object being processed, thereby improving the processing precision and effect, and avoiding the difficulty in processing 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 make 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 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 equipment, 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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