CN114226988B - Automatic focusing device and automatic focusing method for laser marking machine - Google Patents
Automatic focusing device and automatic focusing method for laser marking machine Download PDFInfo
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- CN114226988B CN114226988B CN202111528617.7A CN202111528617A CN114226988B CN 114226988 B CN114226988 B CN 114226988B CN 202111528617 A CN202111528617 A CN 202111528617A CN 114226988 B CN114226988 B CN 114226988B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000010330 laser marking Methods 0.000 title claims abstract description 26
- 239000007921 spray Substances 0.000 claims abstract description 30
- 230000033228 biological regulation Effects 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 9
- 230000017525 heat dissipation Effects 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 241000883990 Flabellum Species 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 230000003028 elevating effect Effects 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000000737 periodic effect Effects 0.000 claims 1
- 230000009471 action Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B23K26/046—Automatically focusing 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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
-
- 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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
-
- 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
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/007—Marks, e.g. trade marks
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses an automatic focusing device and an automatic focusing method of a laser marking machine, wherein the automatic focusing device comprises a shell, the shell is rotationally connected with an adjusting shell, the adjusting shell is fixedly connected with a wedge block, the wedge block is fixedly connected with a vibrating mirror, the adjusting shell is connected with a gear assembly, the gear assembly is connected with a motor, the shell is fixedly connected with a first cylinder, the shell is fixedly connected with a miniature air pump, the miniature air pump is fixedly connected with an electromagnetic three-way valve, the electromagnetic three-way valve is fixedly connected with a connecting pipe, the connecting pipe is fixedly connected with a shell, and the connecting pipe is rotationally connected with a spray head. According to the automatic focusing device and the automatic focusing method of the laser marking machine, the focusing piece is arranged in the device, the second cylinder drives the moving plate, the connecting plate and the convex lens to move according to the shape of the object to be marked, the laser marking focal length is automatically adjusted, and the convex lens can be replaced by disassembling the connecting plate.
Description
Technical Field
The invention relates to the technical field of laser marking machines, in particular to an automatic focusing device and an automatic focusing method of a laser marking machine.
Background
The laser marking machine is used for marking permanent marks on the surfaces of various different substances by using laser beams, the marking effect is that deep substances are exposed through evaporation of surface substances, so that exquisite patterns, trademarks and characters are marked, and corresponding focusing is needed in the marking process of the laser marking machine.
The existing laser marking machine adopts a manual operation mode to focus, the method is complex in operation, poor in accuracy and easy to influence the quality of products, besides, corresponding lenses cannot be cleaned in time during use, and laser marking is easily influenced by impurities attached to the lenses.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an automatic focusing device and an automatic focusing method of a laser marking machine, which solve the problems that manual focusing operation is complex, precision is poor, cleaning of lenses cannot be timely carried out, marking is affected, and the like.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a laser marking machine autofocus device and autofocus method, includes the movable cabinet, movable cabinet upside one end fixedly connected with controller, movable cabinet upside is kept away from controller end fixedly connected with workstation, movable cabinet is close to workstation end fixedly connected with elevating socket, elevating socket sliding connection has the supporting seat, supporting seat upper end fixedly connected with casing, the casing rotates and is connected with the regulation shell, regulation shell lower extreme threaded connection has the protecting crust, regulation shell inner fixedly connected with voussoir, the voussoir is close to protecting crust upper end fixedly connected with and shakes the mirror, the regulation shell is connected with the gear assembly who is connected with the casing, the gear assembly downside is connected with the motor of casing fixedly connected with, the casing is close to gear assembly end fixedly connected with first cylinder, casing outside upper end fixedly connected with miniature air pump, miniature air pump exhaust end fixedly connected with and casing fixedly connected electromagnetic three-way valve, electromagnetic three-way valve horizontal end fixedly connected with and casing fixedly connected with casing, regulation shell lower extreme threaded connection has the protecting crust, regulation shell inner end fixedly connected with bevel gear assembly is close to the connecting pipe, the regulation shell is close to the end bevel gear assembly that is connected with the casing, the inner side of the connecting pipe is close to the connecting pipe fixedly connected with two bevel gears, the inner side of the connecting pipe is connected with the end fixedly connected with the end of the casing, the end of the connecting pipe is close to the connecting pipe.
Preferably, the adjusting mechanism comprises a cam, a connecting rod, a rack, an incomplete gear and a limiting block, wherein the lower end of the bevel gear assembly is connected with a small belt pulley assembly connected with the cam, the incomplete gear is fixedly connected with the spray head, and the limiting block is fixedly connected with the shell.
Preferably, the protruding end of the cam is rotationally connected with the connecting rod, the tail end of the connecting rod is rotationally connected with the rack, the rack is meshed with the incomplete gear, and the lower end of the rack is slidingly connected with the limiting block.
Preferably, the focusing piece comprises movable plate, connecting plate, breather pipe, convex lens, the inboard fixedly connected with of casing and movable plate sliding connection's slide bar, the connecting plate passes through screw and movable plate fixed connection, connecting plate middle-end and convex lens fixed connection, breather pipe and movable plate fixed connection, breather pipe and electromagnetism three-way valve fixed connection, the movable plate is close to the ventilation pipe end and is equipped with the ventilation groove rather than the intercommunication.
Preferably, the movable wheel is fixedly connected with the lower end of the movable cabinet, the controller is respectively and electrically connected with the lifting seat, the motor, the first cylinder, the miniature air pump, the second cylinder and the laser instrument, and fixing pieces are arranged on two sides of the workbench.
Preferably, the inner end of the shell is fixedly connected with an activated carbon net, the end, close to the laser instrument, of the shell is fixedly connected with a first ventilation filter plate, the end, close to the motor, of the shell is fixedly connected with a second ventilation filter plate, and the output end of the motor is fixedly connected with a fan blade.
Preferably, the end of the first cylinder is fixedly connected with a bolt, the upper end of the gear assembly is connected with a fixed disc meshed with the bolt, the surfaces of the shell and the adjusting shell are fixedly connected with a cover shell through fixing screws, the wedge block is fixedly connected with the adjusting shell through thick screws, and the shell is rotationally connected with an impeller connected with the bevel gear assembly.
The invention also discloses an automatic focusing method of the automatic focusing device of the laser marking machine, which comprises the following steps:
firstly, a user places a piece to be marked on a workbench, fixes the piece to be marked on the workbench through a corresponding fixing piece, drives a supporting seat and corresponding parts at the upper end of the supporting seat to move to a proper height along the vertical direction through a lifting seat, then starts a micro air pump, pumps external air through a filter, ejects the air through an electromagnetic three-way valve, a shell, a connecting pipe and a spray nozzle, simultaneously, an impeller in the shell rotates along with air flow, the impeller drives a belt pulley assembly and a cam to rotate through a bevel gear assembly and a small belt pulley assembly, the cam drives a rack to reciprocate along the horizontal direction through a connecting rod, the rack drives an incomplete gear to periodically swing, the angle of the spray nozzle is adjusted, the spray nozzle sprays air to uniformly blow the front and the back of a concave lens, the electromagnetic three-way valve periodically commutates, guides the air to the inner end of the connecting plate through a vent pipe, blows the convex lens, and avoids the influence of the impurities on the surface of the convex lens on the follow-up focusing;
starting a laser instrument through a controller, emitting laser, dispersing the laser through a convex lens, condensing the laser through a concave lens, reflecting the laser to an object to be marked through a vibrating mirror, marking the object to be marked, driving a moving plate, a connecting plate and the convex lens to move by a second cylinder according to the shape of the object to be marked in the process, adjusting the focal length, starting a motor, driving an adjusting shell, an inner end protecting shell of the adjusting shell and the vibrating mirror to rotate by the motor through a gear assembly, and further correspondingly adjusting the angle required by marking, and starting the first cylinder and inserting a bolt at the tail end of the first cylinder into a fixed disc to fix the angle of the vibrating mirror if the angle is required to be fixed;
step three, in step one, the dust and impurity that the inner active carbon net of casing drops on the corresponding lens in time can adsorb and retrieve to the gas that miniature air pump injected into in the casing can be discharged along with first filter plate that ventilates, play good heat dissipation effect to the laser instrument in step two, and in step two, the motor is to vibrating mirror angle adjustment in-process, drive the flabellum and rotate, the flabellum accessible second ventilates filter plate and promotes its inner gas exchange, and then play the heat dissipation effect to the motor, after marking, make each link reset, open corresponding cover shell, can maintain and change corresponding lens in the device.
Advantageous effects
The invention provides an automatic focusing device and an automatic focusing method of a laser marking machine. Compared with the prior art, the method has the following beneficial effects:
(1) According to the automatic focusing device and the automatic focusing method of the laser marking machine, the adjusting mechanism is arranged in the device, the miniature air pump pumps external air through the filter and ejects the air through the electromagnetic three-way valve, the machine shell, the connecting pipe and the spray nozzle, meanwhile, the impeller in the machine shell rotates along with air flow, the impeller drives the belt pulley assembly and the cam to rotate through the bevel gear assembly and the small belt pulley assembly, the cam drives the rack to reciprocate along the horizontal direction through the connecting rod, the rack drives the incomplete gear to periodically swing, the angle of the spray nozzle is adjusted, and the spray nozzle ejects air to uniformly blow the front side and the back side of the concave lens, so that the influence on the follow-up marking caused by the adhesion of impurities on the surface of the concave lens is avoided.
(2) According to the automatic focusing device and the automatic focusing method of the laser marking machine, the focusing piece is arranged in the device, the second cylinder drives the moving plate, the connecting plate and the convex lens to move according to the shape of the object to be marked, so that the laser marking focal length is automatically adjusted, and the corresponding convex lens can be replaced by disassembling the connecting plate.
(3) According to the automatic focusing device and the automatic focusing method of the laser marking machine, the gear assembly is arranged in the device, the motor is started, the motor drives the adjusting shell, the inner end protecting shell and the vibrating mirror to rotate through the gear assembly, the angle required by marking is correspondingly adjusted, if the angle is required to be fixed at the corresponding angle, the first air cylinder is started, the fixing disc is inserted through the bolt at the tail end of the first air cylinder, the angle of the vibrating mirror is further fixed, and the adjustment of the angle of marking laser is further completed.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic cross-sectional view of an inner end laser marker of the present invention;
FIG. 3 is a front view of the inside laser pointer of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 2;
FIG. 5 is an enlarged view of the inner end adjustment mechanism of the present invention;
FIG. 6 is an enlarged view of the inner end focusing member of the present invention.
In the figure: 1. a moving cabinet; 2. a controller; 3. a work table; 4. a lifting seat; 5. a support base; 6. a housing; 7. an adjustment housing; 8. a protective shell; 9. wedge blocks; 10. vibrating mirror; 11. a gear assembly; 12. a motor; 13. a first cylinder; 14. a micro air pump; 15. an electromagnetic three-way valve; 16. a housing; 17. a connecting pipe; 18. a spray head; 19. a bevel gear assembly; 20. an adjusting mechanism; 201. a cam; 202. a connecting rod; 203. a rack; 204. an incomplete gear; 205. a limiting block; 21. a concave lens; 22. a pulley assembly; 23. a focusing member; 231. a moving plate; 232. a connecting plate; 233. a vent pipe; 234. a convex lens; 24. a second cylinder; 25. and (5) a laser instrument.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Referring to fig. 1-6, the present invention provides a technical solution: an automatic focusing device and an automatic focusing method of a laser marking machine comprise a movable cabinet 1, wherein one end of the upper side of the movable cabinet 1 is fixedly connected with a controller 2, the upper side of the movable cabinet 1 is far away from the controller 2 and fixedly connected with a workbench 3, the movable cabinet 1 is near the workbench 3 and fixedly connected with a lifting seat 4, the lifting seat 4 is slidably connected with a supporting seat 5, the upper end of the supporting seat 5 is fixedly connected with a shell 6, the shell 6 is rotatably connected with an adjusting shell 7, the lower end of the adjusting shell 7 is in threaded connection with a protecting shell 8, the inner end of the adjusting shell 7 is fixedly connected with a wedge 9, the wedge 9 is near the upper end of the protecting shell 8 and fixedly connected with a vibrating mirror 10, the adjusting shell 7 is connected with a gear assembly 11 connected with the shell 6, the lower side of the gear assembly 11 is connected with a motor 12 fixedly connected with the shell 6, the shell 6 is near the gear assembly 11 and fixedly connected with a first air cylinder 13, the miniature air pump 14 is fixedly connected to the upper end of the outer side of the shell 6, the electromagnetic three-way valve 15 is fixedly connected to the exhaust end of the miniature air pump 14 and fixedly connected to the shell 6, the connecting pipe 17 is fixedly connected to the horizontal end of the electromagnetic three-way valve 15 and fixedly connected to the shell 6, the shell 16 is fixedly connected to the connecting pipe 17 and fixedly connected to the shell 6, the bolt is fixedly connected to the tail end of the first air cylinder 13, the fixed disk meshed with the bolt is connected to the upper end of the gear assembly 11, the shell 6 and the surface of the adjusting shell 7 are fixedly connected with the cover shell through fixing screws, the wedge 9 is fixedly connected with the adjusting shell 7 through coarse screws, the impeller connected with the bevel gear assembly 19 is rotationally connected to the shell 16, the cover shell with good detachability is convenient for a user to replace corresponding lenses, and the impeller provides power for the operation of the adjusting mechanism 20, so that the use efficiency of the miniature air pump 14 is increased.
The two ends of the lower side of the connecting pipe 17 are both rotationally connected with a spray head 18, the lower end of the casing 16 is connected with a bevel gear assembly 19 fixedly connected with the casing 6, the lower end of the casing 6 close to the bevel gear assembly 19 is connected with an adjusting mechanism 20 connected with the spray head 18, and the inner side of the casing 6 close to the end of the connecting pipe 17 is fixedly connected with a concave lens 21. The adjusting mechanism 20 is connected with the belt pulley assembly 22, the adjusting mechanism 20 is composed of a cam 201, a connecting rod 202, a rack 203, an incomplete gear 204 and a limiting block 205, the lower end of the bevel gear assembly 19 is connected with a small belt pulley assembly connected with the cam 201, the incomplete gear 204 is fixedly connected with the spray head 18, the limiting block 205 is fixedly connected with the shell 6, the protruding end of the cam 201 is rotationally connected with the connecting rod 202, the tail end of the connecting rod 202 is rotationally connected with the rack 203, the rack 203 is meshed with the incomplete gear 204, the lower end of the rack 203 is slidingly connected with the limiting block 205, the miniature air pump 14 pumps external air through a filter and sprays out through the electromagnetic three-way valve 15, the shell 16, the connecting pipe 17 and the spray head 18, meanwhile, an impeller in the shell 16 rotates along with air flow, the impeller drives the belt pulley assembly 22 and the cam 201 to rotate through the bevel gear assembly 19 and the small belt pulley assembly, the rack 203 drives the incomplete gear 204 to periodically swing along the horizontal direction through the connecting rod 202, the spray head 18 is further adjusted, the spray air sprayed out from the spray head 18 uniformly blows the front and back of the concave lens 21, and the surface of the concave lens 21 is prevented from being influenced by the impurities attached to the surface of the concave lens 21.
The inner side of the shell 6 is connected with a focusing piece 23, the inner end of the shell 6 is fixedly connected with a second cylinder 24 connected with the focusing piece 23, and the upper end of the shell 6, which is close to the second cylinder 24, is fixedly connected with a laser instrument 25. The focusing piece 23 comprises a movable plate 231, a connecting plate 232, a vent pipe 233 and a convex lens 234, wherein a sliding rod which is in sliding connection with the movable plate 231 is fixedly connected to the inner side of the shell 6, the connecting plate 232 is fixedly connected with the movable plate 231 through a screw, the middle end of the connecting plate 232 is fixedly connected with the convex lens 234, the vent pipe 233 is fixedly connected with the movable plate 231, the vent pipe 233 is fixedly connected with the electromagnetic three-way valve 15, a vent groove communicated with the vent pipe 233 is formed in the end, close to the vent pipe 233, of the movable plate 231, air is led to the inner end of the connecting plate 232 through the vent pipe 233 and the vent groove, the convex lens 234 is blown, the follow-up focusing is prevented from being influenced by impurities attached to the surface of the convex lens, the second cylinder 24 drives the movable plate 231, the connecting plate 232 and the convex lens 234 to move according to the shape of a to-be-marked object, and the laser marking focal length is automatically adjusted, and the corresponding convex lens 234 can be replaced through disassembling the connecting plate 232.
The movable wheel is fixedly connected to the lower end of the movable cabinet 1, the movable wheel enables the device to have good portability, the controller 2 is respectively electrically connected with the lifting seat 4, the motor 12, the first air cylinder 13, the miniature air pump 14, the second air cylinder 24 and the laser instrument 25, fixing pieces are arranged on two sides of the workbench 3, and the fixing pieces are used for fixing objects to be marked, so that follow-up accurate marking is facilitated. The inner fixedly connected with active carbon net of casing 6, casing 6 are close to laser instrument 25 end fixedly connected with first filter plate that ventilates, and the gas that miniature air pump 14 injected into in the casing 6 can be discharged along with first filter plate that ventilates, plays good heat dissipation effect to laser instrument 25, and casing 6 is close to motor 12 both ends fixedly connected with second filter plate that ventilates, and motor 12 output fixedly connected with flabellum, flabellum accessible second filter plate promote its inner gas exchange, and then play the heat dissipation effect to motor 12.
The invention also discloses an automatic focusing method of the automatic focusing device of the laser marking machine, which comprises the following steps:
firstly, a user places a piece to be marked on a workbench 3 and fixes the piece to be marked on the workbench through corresponding fixing pieces, the lifting seat 4 drives the supporting seat 5 and corresponding parts at the upper end of the supporting seat to move to a proper height along the vertical direction, then the micro air pump 14 is started, the micro air pump 14 pumps external air through a filter and sprays out through the electromagnetic three-way valve 15, the shell 16, the connecting pipe 17 and the spray head 18, meanwhile, an impeller in the shell 16 rotates along with air flow, the impeller drives the belt pulley assembly 22 and the cam 201 to rotate through the bevel gear assembly 19 and the small belt pulley assembly, the cam 201 drives the rack 203 to reciprocate along the horizontal direction through the connecting rod 202, the rack 203 drives the incomplete gear 204 to periodically swing, the spray head 18 angle is further adjusted, the spray head 18 sprays air to uniformly blow the front and back surfaces of the concave lens 21, the influence on the follow-up marking due to the adhesion of impurities on the surface of the concave lens 21 is avoided, the electromagnetic three-way valve 15 periodically commutates the air to the inner end of the connecting plate 232 through the ventilating pipe 233, the influence on the follow-up focusing due to the adhesion of impurities on the surface of the convex lens is avoided;
step two, starting a laser instrument 25 through a controller 2, emitting laser by the laser instrument 25, dispersing the laser through a convex lens 234, condensing the laser through a concave lens 21, reflecting the condensed laser to an object to be marked through a vibrating mirror 10, marking the object to be marked, driving a moving plate 231, a connecting plate 232 and the convex lens 234 to move according to the shape of the object to be marked by a second air cylinder 24 in the process, adjusting the focal length, starting a motor 12 in the same way, driving an adjusting shell 7 and an inner end protecting shell 8 thereof by the motor 12 through a gear assembly 11, rotating the vibrating mirror 10, correspondingly adjusting the angle required for marking, and if the angle is required to be fixed at the corresponding angle, starting a first air cylinder 13, inserting a bolt at the tail end of the first air cylinder into a fixed disc, and fixing the angle of the vibrating mirror 10;
step three, in step one, the active carbon net at the inner end of the shell 6 can timely adsorb and recover dust and impurities falling off from the corresponding lenses, the gas injected into the shell 6 by the micro air pump 14 can be discharged along with the first ventilation filter plate, in step two, a good heat dissipation effect is achieved on the laser instrument 25, in step two, the motor 12 drives the fan blades to rotate in the angle adjusting process of the vibrating mirror 10, the fan blades can promote the gas exchange at the inner ends of the fan blades through the second ventilation filter plate, further the heat dissipation effect is achieved on the motor 12, all links are reset after marking is finished, the corresponding cover shells are opened, and the corresponding lenses in the device can be maintained and replaced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a laser marking machine automatic focusing device, includes movable cabinet (1), its characterized in that: the utility model discloses a three-way electromagnetic valve, including movable cabinet (1), controller (2) is kept away from to movable cabinet (1) upside one end fixedly connected with, movable cabinet (1) upside is kept away from controller (2) end fixedly connected with workstation (3), movable cabinet (1) is close to workstation (3) end fixedly connected with elevating seat (4), elevating seat (4) sliding connection has supporting seat (5), supporting seat (5) upper end fixedly connected with casing (6), casing (6) rotation connection has regulation shell (7), regulation shell (7) lower extreme threaded connection has protection shell (8), regulation shell (7) inner fixedly connected with voussoir (9), voussoir (9) are close to protection shell (8) upper end fixedly connected with vibrating mirror (10), regulation shell (7) are connected with gear assembly (11) with casing (6) be connected, gear assembly (11) downside be connected with casing (6) fixedly connected with motor (12), casing (6) are close to gear assembly (11) end fixedly connected with first (13), casing (6) are connected with casing (14) fixedly connected with miniature air pump (6) and miniature air pump (14), the horizontal end of the electromagnetic three-way valve (15) is fixedly connected with a connecting pipe (17) fixedly connected with the shell (6);
the device is characterized in that the connecting pipe (17) is fixedly connected with a shell (16) fixedly connected with the shell (6), two ends of the lower side of the connecting pipe (17) are rotationally connected with a spray head (18), the lower end of the shell (16) is connected with a bevel gear assembly (19) fixedly connected with the shell (6), the lower end of the shell (6) close to the bevel gear assembly (19) is connected with an adjusting mechanism (20) connected with the spray head (18), the inner side of the shell (6) is fixedly connected with a concave lens (21) close to the end of the connecting pipe (17), the adjusting mechanism (20) is connected with a belt pulley assembly (22), the inner side of the shell (6) is connected with a focusing piece (23), the inner end of the shell (6) is fixedly connected with a second cylinder (24) connected with a focusing piece (23), and the upper end of the shell (6) close to the second cylinder (24) is fixedly connected with a laser instrument (25).
The adjusting mechanism (20) consists of a cam (201), a connecting rod (202), a rack (203), an incomplete gear (204) and a limiting block (205), wherein the lower end of the bevel gear assembly (19) is connected with a small belt pulley assembly connected with the cam (201), the incomplete gear (204) is fixedly connected with the spray head (18), and the limiting block (205) is fixedly connected with the shell (6); the cam (201) is rotatably connected with the connecting rod (202), the tail end of the connecting rod (202) is rotatably connected with the rack (203), the rack (203) is meshed with the incomplete gear (204), and the lower end of the rack (203) is slidably connected with the limiting block (205);
the focusing piece (23) is composed of a movable plate (231), a connecting plate (232), a vent pipe (233) and a convex lens (234), a sliding rod which is in sliding connection with the movable plate (231) is fixedly connected to the inner side of the shell (6), the connecting plate (232) is fixedly connected with the movable plate (231) through a screw, the middle end of the connecting plate (232) is fixedly connected with the convex lens (234), the vent pipe (233) is fixedly connected with the movable plate (231), the vent pipe (233) is fixedly connected with the electromagnetic three-way valve (15), and a ventilation groove which is communicated with the vent pipe (233) is formed in the end, close to the vent pipe (231), of the movable plate (231);
the novel air conditioner is characterized in that a bolt is fixedly connected to the tail end of the first air cylinder (13), a fixed disc meshed with the bolt is connected to the upper end of the gear assembly (11), a cover shell is fixedly connected to the surfaces of the shell (6) and the adjusting shell (7) through fixing screws, the wedge block (9) is fixedly connected with the adjusting shell (7) through thick screws, and an impeller connected with the bevel gear assembly (19) is rotationally connected to the shell (16).
2. The automatic focusing apparatus of a laser marking machine according to claim 1, wherein: the movable cabinet is characterized in that the lower end of the movable cabinet (1) is fixedly connected with a movable wheel, the controller (2) is respectively and electrically connected with the lifting seat (4), the motor (12), the first air cylinder (13), the miniature air pump (14), the second air cylinder (24) and the laser instrument (25), and fixing pieces are arranged on two sides of the workbench (3).
3. The automatic focusing apparatus of a laser marking machine according to claim 1, wherein: the inner end of the shell (6) is fixedly connected with an active carbon net, the end of the shell (6) close to the laser instrument (25) is fixedly connected with a first ventilation filter plate, the two ends of the shell (6) close to the motor (12) are fixedly connected with a second ventilation filter plate, and the output end of the motor (12) is fixedly connected with a fan blade.
4. An autofocus method of a laser marking machine autofocus apparatus according to any one of claims 1-3, characterized by: the method specifically comprises the following steps:
firstly, a user places a piece to be marked on a workbench (3) and fixes the piece to be marked on the workbench through corresponding fixing pieces, a supporting seat (5) and corresponding parts at the upper end of the supporting seat are driven to move to a proper height along the vertical direction through a lifting seat (4), then a micro air pump (14) is started, the micro air pump (14) pumps external air through a filter and ejects out through an electromagnetic three-way valve (15), a shell (16), a connecting pipe (17) and a spray head (18), meanwhile, an impeller in the shell (16) rotates along with air flow, the impeller drives a belt pulley assembly (22) and a cam (201) to rotate through a bevel gear assembly (19) and a small belt pulley assembly, the cam (201) drives a rack (203) to do reciprocating motion along the horizontal direction through a connecting rod (202), the rack (203) drives an incomplete gear (204) to do periodic swing, and then the spray head (18) is adjusted to spray air, the air is blown out from the spray head (18) to the front and back of a concave lens (21) uniformly, the influence of subsequent marking caused by the surface adhesion of impurities on the concave lens (21) is avoided, and the electromagnetic three-way valve (15) is periodically commutated along with the air flow direction (233) to the inner end (232) to the convex lens to prevent the impact on the surface of the convex lens on the convex lens (234;
step two, starting a laser instrument (25) through a controller (2), emitting laser by the laser instrument (25), dispersing the laser through a convex lens (234), condensing the laser by a concave lens (21), finally reflecting the laser to an object to be marked through a vibrating mirror (10), marking the object, driving a moving plate (231), a connecting plate (232) and the convex lens (234) to move by a second air cylinder (24) according to the shape of the object to be marked in the process, further adjusting the focal length, starting a motor (12), driving an adjusting shell (7) and an inner end protecting shell (8) thereof by the motor (12) through a gear assembly (11), rotating the vibrating mirror (10), further correspondingly adjusting the angle required by marking, and if the angle is required to be fixed at the corresponding angle, starting a first air cylinder (13), inserting a bolt at the tail end of the first air cylinder into a fixed disc, and further fixing the angle of the vibrating mirror (10);
step three, in step one, the dust and impurity that drop on corresponding lens can be adsorbed and retrieved in time to the inner active carbon net of casing (6) to the gas of miniature air pump (14) injection casing (6) can be discharged along with first filter plate that ventilates, play good heat dissipation effect to laser instrument (25) in step two, and in step two, motor (12) is to vibrating mirror (10) angle adjustment in-process, drive the flabellum and rotate, the flabellum accessible second ventilates the filter plate and promotes its inner gas exchange, and then plays the heat dissipation effect to motor (12), make each link reset after marking finishes, open corresponding cover shell, can maintain and change corresponding lens in the device.
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| CN202111528617.7A CN114226988B (en) | 2021-12-14 | 2021-12-14 | Automatic focusing device and automatic focusing method for laser marking machine |
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| CN202111528617.7A CN114226988B (en) | 2021-12-14 | 2021-12-14 | Automatic focusing device and automatic focusing method for laser marking machine |
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| CN116079318B (en) * | 2023-04-11 | 2023-06-16 | 羲和智能装备(山东)有限公司 | Automobile axle welding positioning device |
| CN116713590B (en) * | 2023-08-02 | 2024-02-02 | 大匠激光科技(苏州)有限公司 | Focusing control device and method for laser three-dimensional galvanometer |
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