CN116197544A - Laser processing equipment capable of switching marking range and focusing method thereof - Google Patents
Laser processing equipment capable of switching marking range and focusing method thereof Download PDFInfo
- Publication number
- CN116197544A CN116197544A CN202310227755.4A CN202310227755A CN116197544A CN 116197544 A CN116197544 A CN 116197544A CN 202310227755 A CN202310227755 A CN 202310227755A CN 116197544 A CN116197544 A CN 116197544A
- Authority
- CN
- China
- Prior art keywords
- module
- laser processing
- controller
- marking range
- marking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/042—Automatically aligning the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses laser processing equipment capable of switching marking ranges, which belongs to the technical field of laser processing equipment and comprises a ranging module, a control module, a feedback module and a controller, wherein the controller is respectively connected with the ranging module, the feedback module, the control module and a driving module; the distance measuring module moves along with the lifting action of the laser processing assembly and is used for measuring the real-time height from the surface of the workpiece to be processed to the laser processing assembly; the control module is provided with a plurality of marking range keys, and the controller stores target height parameters corresponding to the marking range keys; when focusing operation is executed, the controller reads the real-time height information of the displacement sensor and compares the real-time height information with the target height parameter corresponding to the selected marking range, and feeds back the real-time height information to a user for manual lifting focusing, or directly controls the driving module to lift focusing until the actual focus position and the set focus are within the error range.
Description
Technical Field
The invention belongs to the technical field of laser processing equipment, and particularly relates to laser processing equipment capable of switching marking ranges and a focusing method thereof.
Background
The laser processing is performed by using the photothermal effect by focusing the energy of light through a lens to achieve a high energy density at a focal point. Compared with the traditional processing technology, the laser processing technology has the advantages of less material waste, high production efficiency, strong adaptability to a processing object and the like. Therefore, the laser processing technology is widely applied to processing of surfaces of various objects such as various mechanical parts, electronic components, integrated circuit modules, meters and the like. The working principle is that the laser device generates laser, after being focused by the focusing lens, the laser device irradiates the surface of the workpiece, and the workpiece has ideal processing effect only when the workpiece is positioned in a proper marking range. If the specification of the workpiece to be processed is too large, the marking range of the laser processing equipment needs to be switched to adapt to the processing requirement. Different marking ranges correspond to different focal length positions, and focusing operation is needed to be performed again on the laser processing equipment when the marking ranges are switched. During focusing, the laser processing assembly is lifted integrally through the lifting platform, so that the distance between the laser processing assembly and the workpiece is properly adjusted. At present, a worker generally uses a square to directly measure to determine the height of the lifting platform, and because the lifting focusing is required to have higher accuracy, repeated correction is required during lifting focusing, and a great amount of time is wasted. Moreover, due to the reasons of the observation angle of workers, the softer and easy bending of the steel ruler and the like, the actual measurement value of the height can be greatly deviated, and the laser processing effect is greatly different.
In the prior art, as disclosed in chinese patent with publication No. CN108381040a, a laser marking device with a focusing auxiliary structure is provided, which comprises a base, the side of the base is provided with a laser through hole, the base is provided with a first deflection motor and a second deflection motor, the first deflection motor is connected with a first reflector corresponding to the laser through hole, the second deflection motor is connected with a second reflector corresponding to the first reflector, the surface of the base is provided with a focusing mirror corresponding to the second reflector, the inside of the base is also provided with a first light source and a second light source corresponding to the focusing mirror, and the first light source and the second light source can both emit visible light beams to pass through the focusing mirror. The focusing auxiliary structure improves the focusing efficiency to a certain extent, but the focusing auxiliary structure can only correspond to a single marking range, has a narrow application range and can not realize the switching focusing operation of a plurality of marking ranges; in addition, when the above focusing auxiliary structure is adopted to carry out lifting focusing operation, the visible light spots of the first light source and the second light source are required to be overlapped, the overlapping condition of the two light spots directly influences the focusing precision degree, the requirement on the focusing experience of workers is high, repeated correction is required, and inconvenience exists in operation.
Therefore, in order to solve the problems in the prior art, it is needed to provide a laser processing device capable of switching the marking range and a focusing method thereof, so as to meet the requirements of efficient and accurate laser processing technology.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides the laser processing equipment with the switchable marking ranges and the focusing method thereof, so as to solve the lifting focusing requirement when the laser processing equipment switches a plurality of marking ranges, ensure that the focusing operation process is accurate, reliable, convenient and quick, and more accords with the operation habit of workers.
The technical scheme of the invention is realized as follows: the laser processing equipment capable of switching the marking range comprises a rack, wherein a working platform for placing a workpiece to be processed is arranged on the rack, a support bracket is movably connected to the rack, a laser processing assembly is arranged on the support bracket, a plurality of guide rods are connected between the support bracket and the rack, a driving module is further arranged on the rack, and the support bracket is driven by the driving module to lift along the extending direction of the guide rods;
the laser processing assembly comprises a laser, an optical path assembly and a scanning head; the optical path component is used for adjusting the beam focal length of incident laser and comprises a plurality of concave lenses and/or convex lenses; the processing laser emits from the laser, passes through the light path component and enters the scanning head, and the scanning head comprises a plurality of reflecting lenses for changing the direction of the processing laser so as to enable the processing laser to emit towards the working platform;
the device also comprises a ranging module, a control module, a feedback module and a controller, wherein the controller is respectively connected with the ranging module, the feedback module, the control module and the driving module; the distance measuring module moves along with the lifting action of the laser processing assembly and is used for measuring the real-time height from the surface of the workpiece to be processed to the laser processing assembly; the control module is provided with a plurality of marking range keys, and the controller stores target height parameters corresponding to the marking range keys;
when the controller receives trigger information from the marking range key, the driving module drives the laser processing assembly to rise or fall, the ranging module transmits real-time height information to the controller, the controller selects target height parameters according to the trigger information of the marking range key, compares and judges the real-time height information with the target height parameters, and displays the real-time height information in a sound or lamplight mode through the feedback module.
According to the invention, through setting the plurality of marking range keys, each marking range key corresponds to a specific target height, a user can select a proper marking range according to the specification and the size of different workpieces, the rapid lifting focusing operation of the laser processing assembly is performed, the operation is convenient and reliable, and the high-efficiency operation requirement in the laser focusing process is met.
As a further improvement of the scheme, the laser processing device further comprises a focusing box, wherein the ranging module and the feedback module are packaged in the focusing box, the focusing box is connected with the controller through a cable, and the focusing box can move up and down along with the laser processing assembly;
as a further improvement of the scheme, the focusing box is provided with a hollow cavity, the ranging module is arranged in the cavity, the ranging module is a displacement sensor, and an induction window of the displacement sensor is arranged towards one side of the working platform;
the feedback module comprises indicator lamps which are in one-to-one correspondence with the marking range keys, and each indicator lamp is arranged on one side of the focusing box facing outwards; when the laser processing assembly is lifted or lowered to the target height, the controller controls the corresponding indicator lamp to be normally on, flash or display the corresponding color;
as a further improvement of the above, the feedback module further comprises a buzzer, and the controller controls the buzzer to respond rapidly when the laser processing component is lifted or lowered to the target height;
when the traditional focusing auxiliary structure is adopted for lifting focusing operation, two visible light spots are required to be overlapped, the requirement on the focusing experience of a worker is high, and the operation is inconvenient. Further, the focusing result can be intuitively displayed by arranging the indicator lamp/buzzer arranged on the feedback module, so that the focusing device is more in line with the operation habit of workers and has high focusing precision.
As a further improvement of the above, the driving module includes an electric push rod; or, a hydraulic and pneumatic lifting mechanism is adopted, and the lifting mechanism is controlled by a signal through current or voltage change;
it should be noted that, in the conventional focusing operation, the displacement sensor detects the difference value, and then signals to make the driving module move the difference value distance, which puts higher demands on the precision of the lifting screw rod and the motor, and even the driving system. The focusing method is to measure the difference value continuously by means of the real-time measurement of the displacement sensor, and compare the measured difference value with the preset parameter value stored in the controller continuously to approach continuously. Therefore, the precision requirement on the lifting mechanism of the laser processing assembly is reduced, compared with a stepping and servo system adopting pulse signals, the device such as an expensive precision screw rod and a programmable controller is saved, the manufacturing cost is low, and the device has stronger universality and economic benefit.
As a further improvement of the scheme, the control module is a control box, the control box is connected with the controller, and the plurality of marking range keys are arranged on the control box.
As a further improvement of the scheme, when a certain marking range key is pressed, the driving module drives the laser processing assembly to rise or fall to reach the vicinity of the target height corresponding to the marking range key, and the controller controls the start and stop of the driving module according to the comparison result of the real-time height information and the target height parameter;
or, the control box is also provided with an up key and a down key, when a key in a certain marking range is pressed, the up key or the down key is manually pressed to drive the laser processing assembly to rise or fall, the laser processing assembly reaches the vicinity of a target height corresponding to the key in the marking range, and the controller controls the response or stop of the feedback module according to the comparison result of the real-time height information and the target height parameter;
when focusing operation is executed, the controller reads real-time height information of the displacement sensor and compares the real-time height information with target height parameters corresponding to the selected marking range, and feeds back the real-time height information to a user for manual lifting focusing, or directly controls the driving module to lift focusing until the actual focal length height position and the set target height are within an error range.
As a further improvement of the above scheme, the marking range keys have four marking ranges, which are a first marking range key, a second marking range key, a third marking range key and a fourth marking range key, and the marking ranges respectively correspond to 400mm x 400mm, 500mm x 500mm, 600mm x 600mm and 750mm x 750mm.
As a further improvement of the scheme, the optical path component comprises a sliding seat, a bracket, a first lens and a second lens, wherein the sliding seat is provided with a guide rail extending along a laser optical path, the bracket is arranged on the guide rail and can slide along the guide rail, the second lens is fixed on the bracket, the optical path component further comprises a swinging motor connected with the bracket, the swinging motor controls the bracket to slide back and forth along the guide rail direction, and the swinging motor is connected with the controller; the laser marking device comprises a laser light path, a first lens, a second lens, a regulating module and a marking module, wherein the regulating module is in transmission connection with the slide, and drives the slide to move back and forth along the extending direction of the laser light path, so that the distance between the first lens and the second lens is matched with the corresponding marking range.
A focusing method of a switchable marking range, which is applied to a laser processing device with the switchable marking range, and comprises the following steps:
step S1: the controller acquires the input target height parameter and stores the target height parameter to the controller;
step S2: the controller receives trigger information from a button in a certain marking range;
step S3: the controller reads the target height parameter corresponding to the marking range key according to the received trigger information;
step S4: the laser processing assembly is driven by the driving module to rise or fall to the vicinity of the target height;
step S5: the distance measuring module acquires real-time height information from the surface of a workpiece to be processed to the laser processing assembly and transmits the real-time height information to the controller, and the controller compares the current real-time height information with a pre-stored target height parameter to form a comparison result and transmits a control signal to the feedback module;
step S6: and the feedback module receives the control signal and controls the corresponding indicator lamp or buzzer to respond or stop.
Step S7: the user manually drives the driving module to perform lifting focusing according to the feedback information of the feedback module, or the controller directly controls the driving module to perform lifting focusing; until the actual focal length height position and the set target height are within the error range.
The invention has the beneficial effects that:
(1) The laser processing equipment is provided with a plurality of marking range keys, each marking range key corresponds to a specific target height, a user can select a proper marking range according to the specification and the size of different workpieces, the rapid lifting focusing operation of the laser processing assembly is performed, the operation is convenient and reliable, and the high-efficiency operation requirement in the laser focusing process is met;
(2) When focusing operation is executed, the controller reads real-time height information of the displacement sensor and compares the real-time height information with target height parameters corresponding to the selected marking range, and feeds back the real-time height information to a user for manual lifting focusing, or the controller directly controls the driving module to lift focusing until the actual focal length height position and the set target height are within an error range;
(3) The laser processing equipment can adopt a push rod or a lifting mechanism controlled by current or voltage signals by means of hydraulic pressure, pneumatic pressure and the like, compared with a stepping and servo system adopting pulse signals, the device such as an expensive precise screw rod, a programmable controller and the like is saved, the manufacturing cost is low, and the device has stronger universality and economic benefit.
Drawings
FIG. 1 is a schematic view of a laser processing apparatus according to the present invention;
FIG. 2 is a schematic diagram illustrating the operation of the focusing box of the present invention;
FIG. 3 is a schematic view of a focusing box according to the present invention;
FIG. 4 is a schematic diagram illustrating operation of the light path assembly of the present invention;
FIG. 5 is a schematic block diagram of the present invention;
FIG. 6 is a block diagram of the steps of the present invention;
reference numerals:
g1, a workpiece to be processed;
1. a frame; 2. a support bracket; 3. a guide rod;
4. a laser processing assembly; 41. a scanning head; 411. an X-ray mirror; 412. a Y reflecting mirror; 42. a laser; 43. an optical path component; 431. a slide; 432. a bracket; 433. a first lens; 434. a second lens; 435. a swing motor; 436. a guide rail;
5. a driving module;
6. a focusing box; 61. a ranging module; 62. a feedback module; 63. a cavity; 64. a box cover;
7. a controller;
8. a control module;
10. and a working platform.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1-6, a laser processing device capable of switching marking ranges comprises a frame 1, wherein a working platform 10 for placing a workpiece to be processed is arranged on the frame 1, a support bracket 2 is movably connected to the frame 1, a laser processing assembly 4 is arranged on the support bracket 2, a plurality of guide rods 3 are connected between the support bracket 2 and the frame 1, a driving module 5 is further arranged on the frame 1, and the support bracket 2 is driven by the driving module 5 to lift along the extending direction of the guide rods 3; in the present embodiment, the laser processing assembly 4 includes a laser 42, an optical path assembly 43, and a scanning head 41; the optical path component 43 is used for adjusting the beam focal length of the incident laser, and comprises a plurality of concave lenses and/or convex lenses; processing laser is from laser 42 outgoing, through light path subassembly 43, the incidence is to scanning head 41, scanning head 41 includes a plurality of reflecting lenses for change the direction of processing laser, make processing laser go out towards work platform 10, concretely, scanning head 41 includes X speculum 411 and Y speculum 412 of installing in proper order, and X speculum 411 is installed on the rotation output shaft of X motor, and Y speculum 412 is installed on the rotation output shaft of Y motor, and the rotation axis direction of X motor is perpendicular with the rotation axis direction different face of Y motor.
Specifically, the optical path component 43 includes a slide, a support, a first lens 433 and a second lens 434, in this embodiment, the first lens 433 is a concave lens, the second lens 434 is a convex lens, a guide rail extending along the laser optical path is disposed on the slide, the support is disposed on the guide rail and can slide along the guide rail, the concave lens is fixed on the support, and further includes a swing motor connected with the support, the swing motor controls the support to slide back and forth along the guide rail direction, and the swing motor is connected with the controller 7; the laser marking device further comprises an adjusting module (not labeled in the drawing) in transmission connection with the sliding seat, and the adjusting module drives the sliding seat to move back and forth along the extending direction of the laser light path, so that the distance between the first lens and the second lens is matched with the corresponding marking range.
Specifically, the adjusting module can select a micrometer, according to the spiral motion principle, when the micro cylinder (also called a movable scale cylinder) rotates for one circle, the micrometer screw rod advances or retreats by one screw pitch, so as to push the sliding seat to drive the second lens to move, and the distance between the two lenses is high in adjusting precision, stable and reliable; the adjusting module can also adopt a motor, the motor is connected with the controller, the controller drives the sliding seat directly or indirectly through the motor to drive the second lens to move, and the operation process is convenient and quick.
The device further comprises a ranging module 61, a control module 8 and a feedback module 62, wherein the controller 7 is respectively connected with the ranging module 61, the feedback module 62, the control module 8 and the driving module 5; the controller 7 refers broadly to a device for executing control instructions and operation data, and may be a large-scale integrated circuit controller 7 (CPU), or may be a device in which a plurality of small controllers 7 are split into a plurality of small controllers according to functional requirements, and are respectively disposed at different positions, in the above manner.
The distance measuring module 61 moves up and down along with the laser processing assembly 4 and is used for measuring the real-time height from the surface of the workpiece to be processed to the laser processing assembly 4; the control module 8 is provided with a plurality of marking range keys, and the controller 7 stores target height parameters corresponding to the marking range keys;
when the controller 7 receives the trigger information from the marking range key, the driving module 5 drives the laser processing assembly 4 to rise or fall, the ranging module 61 transmits the real-time height information to the controller 7, the controller 7 selects the target height parameter according to the trigger information of the marking range key, compares and judges the real-time height information with the target height parameter, and displays the real-time height information in the form of sound or lamplight through the feedback module 62.
Specifically, the device further comprises a focusing box 6, the distance measuring module 61 and the feedback module 62 are encapsulated in the focusing box 6, the focusing box 6 is connected with the controller 7 through a cable, and the focusing box 6 can move up and down along with the laser processing assembly 4; in this embodiment, the focusing box 6 has a hollow cavity 63, a box cover 64 is detachably connected above the cavity 63, the ranging module 61 is disposed in the cavity 63, the ranging module 61 is a displacement sensor, and a sensing window of the displacement sensor is disposed towards one side of the working platform 10;
the feedback module 62 includes indicator lamps corresponding to the marking range keys one by one, and each indicator lamp is disposed on one side of the focusing box 6 facing outwards; when the laser processing assembly 4 is lifted or lowered to the target height, the controller 7 controls the corresponding indicator lamp to be always on or flash rapidly; in this embodiment, the feedback module 62 further includes a buzzer, and the controller 7 controls the buzzer to rapidly respond when the laser processing unit 4 is raised or lowered to the target height.
When the traditional focusing auxiliary structure is adopted for lifting focusing operation, two visible light spots are required to be overlapped, the requirement on the focusing experience of a worker is high, and the operation is inconvenient. Further, the focusing result can be intuitively displayed by setting the indicator lamp/buzzer on the feedback module 62, so that the focusing device is more in line with the operation habit of workers, and the focusing precision and efficiency are high.
In this embodiment, the driving module 5 includes an electric push rod; or, a hydraulic and pneumatic lifting mechanism is adopted, and the lifting mechanism is controlled by a signal through current or voltage change; in this embodiment, the driving module 5 preferably adopts an electric push rod. Because the focusing operation is performed by means of real-time measurement of the displacement sensor, the precision requirement of the lifting mechanism of the laser processing assembly 4 is reduced, and compared with a stepping and servo system adopting pulse signals, the device such as an expensive precision screw rod and a programmable controller 7 is saved, the manufacturing cost is low, and the device has stronger universality and economic benefit.
In this embodiment, the control module 8 is a control box, the control box is connected to the controller 7, and the plurality of marking range keys are disposed on the control box.
The control box is also provided with an up key and a down key, when a certain marking range key is pressed, the up key or the down key is manually pressed to drive the laser processing assembly 4 to rise or fall, the laser processing assembly reaches the vicinity of the target height corresponding to the marking range key, and the controller 7 controls the response or stop of the feedback module 62 according to the comparison result of the real-time height information and the target height parameter. Until the actual focus position and the set focus are within the error range, the technical scheme is simple and easy to operate, can effectively meet the requirements of users, and has strong practicability.
Specifically, the marking range keys include four marking range keys, namely a first marking range key, a second marking range key, a third marking range key and a fourth marking range key, and marking ranges respectively corresponding to the marking range keys are 400mm x 400mm, 500mm x 500mm and 750mm x 750mm.
The embodiment also provides a focusing method of the switchable marking range, which is applied to the laser processing equipment with the switchable marking range, and the method comprises the following steps:
step S1: the controller 7 acquires the input target height parameter and stores the target height parameter into the controller 7;
step S2: the controller 7 receives triggering information from a key in a certain marking range;
step S3: the controller 7 reads the target height parameter corresponding to the marking range key according to the received trigger information;
step S4: the laser processing assembly 4 is driven by the driving module 5 to be lifted or lowered to the vicinity of the target height;
step S5: the distance measuring module 61 obtains real-time height information from the surface of the working platform 10 to the laser processing assembly 4 and transmits the real-time height information to the controller 7, the controller 7 compares the current real-time height information with a pre-stored target height parameter to form a comparison result, and a control signal is sent to the feedback module 62;
step S6: the feedback module 62 receives the control signal and controls the corresponding indicator lamp or buzzer to respond or stop;
step S7: the user manually drives the driving module to perform lifting focusing according to the feedback information of the feedback module, or the controller directly controls the driving module to perform lifting focusing; until the actual focal length height position and the set target height are within the error range.
Through the above scheme of the invention, in a specific application, when focusing operation is performed, a user presses a marking range key, the controller 7 receives trigger information from the marking range key, the ranging module 61 transmits real-time height information to the controller 7, and the controller 7 compares and judges the real-time height information with a target height parameter; for example, when the specification size of the workpiece is 400mm×400mm, the first marking range key (marking range: 400mm×400 mm) may be pressed, and the controller 7 selects the target height parameter, such as 50cm, of the triggering of the marking range key. The up key or the down key on the control box is operated to drive the laser processing assembly 4 to rise or fall to reach the vicinity of the target height corresponding to the marking range key. The ranging module 61 transmits the real-time height information to the controller 7, and the controller 7 compares and judges the real-time height information with the target height parameter; when the laser processing assembly 4 is lifted or lowered to the target height, the controller 7 controls the corresponding indicator lamp to be normally on and display green; or controlling the buzzer to respond rapidly until the actual focal length height position and the set target height are within an error range. Through setting up a plurality of marking range button, every marking range button corresponds specific target height, and the user can select suitable marking range according to the specification size of different work pieces, carries out the quick lift focusing operation of laser beam machining subassembly 4, and the simple operation is reliable, satisfies the high efficiency operation demand of laser focusing in-process.
Example 2
In one embodiment of the present invention, the main technical solution of this embodiment is the same as that of embodiment 1, and features that are not explained in this embodiment are explained in embodiment 1, and are not described here again. This embodiment differs from embodiment 1 in that:
in this embodiment, when a key in a certain marking range is pressed, the driving module 5 drives the laser processing component 4 to rise or fall, and the laser processing component reaches the vicinity of a target height corresponding to the key in the marking range, and the controller 7 controls the start and stop of the driving module 5 according to a comparison result of the real-time height information and the target height parameter; when focusing operation is performed, the controller 7 directly controls the driving module 5 to lift and focus by reading the real-time height information of the displacement sensor and comparing the real-time height information with the target height parameter corresponding to the selected marking range.
Furthermore, the focusing box 6 is further provided with a plurality of reference keys, when the focusing operation is completed, the reference keys are pressed, the controller 7 records the actual focusing height of the current marking range, when the marking range is switched next time, the reference keys are pressed, and the laser processing assembly 4 is directly lifted or lowered to the focusing height under the driving of the driving module 5, so that the focusing efficiency and the focusing precision are greatly improved.
Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (10)
1. The laser processing equipment capable of switching the marking range comprises a rack, wherein a working platform for placing a workpiece to be processed is arranged on the rack, and the laser processing equipment is characterized in that a support bracket is movably connected to the rack, a laser processing assembly is arranged on the support bracket, a plurality of guide rods are connected between the support bracket and the rack, a driving module is further arranged on the rack, and the support bracket is driven by the driving module to lift along the extending direction of the guide rods;
the laser processing assembly comprises a laser, an optical path assembly and a scanning head; the optical path component is used for adjusting the beam focal length of incident laser and comprises a plurality of concave lenses and/or convex lenses; the processing laser emits from the laser, passes through the light path component and enters the scanning head, and the scanning head comprises a plurality of reflecting lenses for changing the direction of the processing laser so as to enable the processing laser to emit towards the working platform;
the device also comprises a ranging module, a control module, a feedback module and a controller, wherein the controller is respectively connected with the ranging module, the feedback module, the control module and the driving module; the distance measuring module moves along with the lifting action of the laser processing assembly and is used for measuring the real-time height from the surface of the workpiece to be processed to the laser processing assembly; the control module is provided with a plurality of marking range keys, and the controller stores target height parameters corresponding to the marking range keys;
when the controller receives trigger information from the marking range key, the driving module drives the laser processing assembly to rise or fall, the ranging module transmits real-time height information to the controller, the controller selects target height parameters according to the trigger information of the marking range key, compares and judges the real-time height information with the target height parameters, and displays the real-time height information in a sound or lamplight mode through the feedback module.
2. The laser processing device of claim 1, further comprising a focusing box, wherein the ranging module and the feedback module are encapsulated in the focusing box, the focusing box is connected with the controller through a cable, and the focusing box can move up and down along with the laser processing assembly.
3. The laser processing device capable of switching a marking range according to claim 2, wherein the focusing box is provided with a hollow cavity, the ranging module is arranged in the cavity, the ranging module is a displacement sensor, and an induction window of the displacement sensor is arranged towards one side of the working platform;
the feedback module comprises indicator lamps which are in one-to-one correspondence with the marking range keys, and each indicator lamp is arranged on one side of the focusing box facing outwards; when the laser processing assembly is lifted or lowered to the target height, the controller controls the corresponding indicator lamp to be always on, flash or display the corresponding color.
4. A switchable marking range laser machining apparatus as claimed in claim 3 wherein the feedback module further comprises a buzzer, the controller controlling the buzzer to respond rapidly when the laser machining assembly is raised or lowered to the target level.
5. A laser machining apparatus with switchable marking range according to claim 3 or 4, wherein the driving module comprises an electric push rod; or, hydraulic and pneumatic lifting mechanisms are adopted, and the lifting mechanisms are controlled by signals through current or voltage changes.
6. The laser processing apparatus of claim 5, wherein the control module is a control box, the control box is connected to the controller, and the plurality of marking range keys are disposed on the control box.
7. The laser processing device with a switchable marking range according to claim 6, wherein when a key in a certain marking range is pressed, the driving module drives the laser processing assembly to rise or fall to reach the vicinity of a target height corresponding to the key in the marking range, and the controller controls the start and stop of the driving module according to the comparison result of the real-time height information and the target height parameter;
or, an up key and a down key are further arranged on the control box, when a key in a certain marking range is pressed, the up key or the down key is manually pressed to drive the laser processing assembly to rise or fall, the laser processing assembly reaches the vicinity of a target height corresponding to the key in the marking range, and the controller controls the response or stop of the feedback module according to the comparison result of the real-time height information and the target height parameter.
8. The laser processing apparatus of claim 7, wherein the marking range keys have four marking ranges, i.e., a first marking range key, a second marking range key, a third marking range key, and a fourth marking range key, and the marking ranges respectively correspond to 400mm x 400mm, 500mm x 500mm, 600mm x 600mm, and 750mm x 750mm.
9. The laser processing device capable of switching the marking range according to claim 1, wherein the optical path assembly comprises a sliding seat, a bracket, a first lens and a second lens, a guide rail extending along the laser optical path is arranged on the sliding seat, the bracket is arranged on the guide rail and can slide along the guide rail, the second lens is fixed on the bracket, the device further comprises a swing motor connected with the bracket, the swing motor controls the bracket to slide back and forth along the guide rail direction, and the swing motor is connected with the controller; the laser marking device comprises a laser light path, a first lens, a second lens, a regulating module and a marking module, wherein the regulating module is in transmission connection with the slide, and drives the slide to move back and forth along the extending direction of the laser light path, so that the distance between the first lens and the second lens is matched with the corresponding marking range.
10. A focusing method of a switchable marking range, applied to a laser processing device of a switchable marking range as claimed in any one of claims 1 to 9, characterized in that the method comprises:
step S1: the controller acquires the input target height parameter and stores the target height parameter into the controller;
step S2: the controller receives trigger information from a button in a certain marking range;
step S3: the controller reads the target height parameter corresponding to the marking range key according to the received trigger information;
step S4: the laser processing assembly is driven by the driving module to rise or fall to the vicinity of the target height;
step S5: the distance measuring module acquires real-time height information from the surface of a workpiece to be processed to the laser processing assembly and transmits the real-time height information to the controller, and the controller compares the current real-time height information with a pre-stored target height parameter to form a comparison result and transmits a control signal to the feedback module;
step S6: the feedback module receives the control signal and controls the corresponding indicator lamp or buzzer to respond or stop;
step S7: the user manually drives the driving module to perform lifting focusing according to the feedback information of the feedback module, or the controller directly controls the driving module to perform lifting focusing; until the actual focal length height position and the set target height are within the error range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310227755.4A CN116197544A (en) | 2023-03-09 | 2023-03-09 | Laser processing equipment capable of switching marking range and focusing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310227755.4A CN116197544A (en) | 2023-03-09 | 2023-03-09 | Laser processing equipment capable of switching marking range and focusing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116197544A true CN116197544A (en) | 2023-06-02 |
Family
ID=86517123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310227755.4A Pending CN116197544A (en) | 2023-03-09 | 2023-03-09 | Laser processing equipment capable of switching marking range and focusing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116197544A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117086500A (en) * | 2023-08-17 | 2023-11-21 | 深圳市大德激光技术有限公司 | Electrical control system of laser etching equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108381040A (en) * | 2018-03-12 | 2018-08-10 | 合肥宇胜信息科技有限公司 | Laser mark printing device with focusing supplementary structure |
| CN208255411U (en) * | 2018-04-03 | 2018-12-18 | 领势激光科技无锡有限公司 | A kind of ranging localization formula Portable laser head |
| CN111360412A (en) * | 2019-11-25 | 2020-07-03 | 广州新可激光设备有限公司 | Laser marking device and method for realizing stepless focusing through multiple fixed-point keys |
| CN113814556A (en) * | 2021-10-18 | 2021-12-21 | 深圳正实激光科技有限公司 | Laser marking machine with coaxial light path and marking mechanism thereof |
-
2023
- 2023-03-09 CN CN202310227755.4A patent/CN116197544A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108381040A (en) * | 2018-03-12 | 2018-08-10 | 合肥宇胜信息科技有限公司 | Laser mark printing device with focusing supplementary structure |
| CN208255411U (en) * | 2018-04-03 | 2018-12-18 | 领势激光科技无锡有限公司 | A kind of ranging localization formula Portable laser head |
| CN111360412A (en) * | 2019-11-25 | 2020-07-03 | 广州新可激光设备有限公司 | Laser marking device and method for realizing stepless focusing through multiple fixed-point keys |
| CN113814556A (en) * | 2021-10-18 | 2021-12-21 | 深圳正实激光科技有限公司 | Laser marking machine with coaxial light path and marking mechanism thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117086500A (en) * | 2023-08-17 | 2023-11-21 | 深圳市大德激光技术有限公司 | Electrical control system of laser etching equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108526697B (en) | Automatic focusing laser marking machine and automatic focusing marking method of marking machine | |
| CN111229737B (en) | Handheld laser cleaning dynamic compensation device | |
| US9895768B2 (en) | Laser processing apparatus | |
| CN116197544A (en) | Laser processing equipment capable of switching marking range and focusing method thereof | |
| CN101990478B (en) | Process control apparatus and laser processing apparatus | |
| KR20180133343A (en) | Apparatus for additive manufacturing of a product with a calibration device and method for calibration of an apparatus of this kind | |
| CN111037106B (en) | Z-axis motion control system and method of laser processing equipment | |
| CN110405338B (en) | Laser light path system and double-end laser marking machine | |
| CN110997215A (en) | Method for laser material processing and laser machine | |
| CN110834145B (en) | Control system for realizing full-closed-loop focusing of high-power laser cutting head | |
| CN102825916B (en) | Laser marking machine and marking method thereof | |
| CN109014567B (en) | Low-cost laser optimal machining height adjusting device and method | |
| CN219786947U (en) | Focusing structure capable of switching marking range | |
| CN202097496U (en) | Laser device for machining workpieces | |
| CN108195292B (en) | Displacement measuring method | |
| CN201988841U (en) | Laser device | |
| KR101120835B1 (en) | Laser machining apparatus with tilting and autofocusing function | |
| CN107650389B (en) | Ultrasonic welding machine | |
| JPH1123219A (en) | Displacement measuring device using confocal optical system | |
| CN214161779U (en) | Laser marking machine with laser focusing auxiliary marking function | |
| KR20150038971A (en) | Laser processing apparatus | |
| JP2014174047A (en) | Measuring device, measurement method and article manufacturing method | |
| JPH02160191A (en) | Laser beam machine | |
| CN211804387U (en) | Control system for realizing full closed-loop focusing of high-power laser cutting head | |
| JP5072743B2 (en) | Micromachine and micromilling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |