CN110548997A - Multi-station automatic focusing laser engraving machine - Google Patents
Multi-station automatic focusing laser engraving machine Download PDFInfo
- Publication number
- CN110548997A CN110548997A CN201910713537.5A CN201910713537A CN110548997A CN 110548997 A CN110548997 A CN 110548997A CN 201910713537 A CN201910713537 A CN 201910713537A CN 110548997 A CN110548997 A CN 110548997A
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- China
- Prior art keywords
- guide rail
- lifting
- automatic focusing
- laser
- servo motor
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Classifications
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- 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
- B23K26/048—Automatically focusing the laser beam by controlling the distance between laser head and workpiece
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
the invention discloses a multi-station automatic focusing laser etching machine, and belongs to the technical field of laser etching. The laser cavity is arranged on the lifting module in a sliding manner; the lifting rotary table comprises a rotary dividing plate, a dividing plate driving assembly and a dividing plate lifting assembly, the rotary dividing plate is of a disc structure, the rotary dividing plate is arranged under the laser cavity, a plurality of fasteners are arranged on the rotary dividing plate along the circumferential direction of the rotary dividing plate and used for fixing workpieces to be laser-etched, the dividing plate driving assembly is used for driving the rotary dividing plate to rotate, and the dividing plate lifting assembly is used for driving the rotary dividing plate to move along the direction towards the laser cavity or towards the working platform. The laser engraving machine provided by the invention can reduce the processing interval waiting time of the laser engraving machine, improve the working efficiency of laser engraving processing and realize automatic focusing of a laser lens.
Description
Technical Field
The invention relates to the technical field of laser engraving, in particular to a multi-station automatic focusing laser engraving machine.
background
The laser engraving machine is a device for engraving permanent marks on the surface of a substance or in a transparent substance by using a laser beam. The laser engraving machine comprises a laser lens for generating a laser beam and a support for fixing a workpiece to be laser engraved, and before the workpiece to be laser engraved is processed, the laser lens needs to be focused.
At present, the positions of a laser lens and a support of a common laser etching machine on the market are usually fixed, so that when a step surface laser etching area exists in the interior of a workpiece to be subjected to laser etching, the height of the laser lens needs to be adjusted for many times to realize focusing, the laser etching operation is very complicated, and the laser etching processing work efficiency is low. Meanwhile, the existing laser engraving machine can only perform laser engraving processing on one workpiece to be subjected to laser engraving at one time, and after each workpiece is processed, the manual blanking and loading operation is needed, and then the next workpiece is processed, so that the waiting time of the processing interval of the laser engraving machine is long, and the working efficiency of the laser engraving machine is seriously influenced.
disclosure of Invention
The embodiment of the invention provides a multi-station automatic focusing laser etching machine, which can reduce the processing interval waiting time of the laser etching machine, improve the working efficiency of laser etching processing and realize automatic focusing of a laser lens. The technical scheme is as follows:
The invention provides a multi-station automatic focusing laser engraving machine which comprises a machine table, a lifting module, a lifting rotary table and a laser cavity, wherein a working platform is arranged at the top of the machine table, the lifting module and the lifting rotary table are both arranged on the working platform, the laser cavity is arranged on the lifting module in a sliding manner, and the sliding direction of the laser cavity is vertical to the working platform;
The lifting turntable comprises a rotary indexing disc, an indexing disc driving assembly and an indexing disc lifting assembly, the rotary indexing disc is of a disc structure, the rotary indexing disc is arranged right below the laser cavity, a plurality of fasteners used for fixing workpieces to be laser-etched are arranged on the rotary indexing disc along the circumferential direction of the rotary indexing disc, the indexing disc driving assembly is used for driving the rotary indexing disc to rotate, and the indexing disc lifting assembly is used for driving the rotary indexing disc to move in the direction close to the laser cavity or the working platform.
Further, the index plate driving assembly comprises a first servo motor, a turntable support and a hollow turntable;
The rotary table support is used for supporting the hollow rotary table, the hollow rotary table comprises a connecting portion and a rotating portion, the connecting portion is fixedly connected with the rotary table support, the rotating portion is fixedly connected with the rotary dividing plate, and the first servo motor is used for driving the rotating portion of the hollow rotary table to rotate.
Furthermore, the index plate lifting assembly comprises a guide rail assembly, a rotary table bottom plate, a second servo motor, a ball screw and a push plate;
The working platform is fixedly provided with two groups of guide rail assemblies which are arranged in parallel, and each group of guide rail assemblies comprises a wedge-shaped plate, a first guide rail, a first sliding block, a second guide rail, a second sliding block and a fixed connecting block;
The wedge-shaped block comprises a bottom surface and a top surface arranged opposite to the bottom surface, the bottom surface is a plane, the top surface is an inclined surface, the distance between the top surface and the bottom surface is gradually reduced, the first guide rail is fixed on the working platform, the first sliding block is slidably arranged on the first guide rail, the bottom surface of the wedge-shaped block is fixedly connected with the first sliding block, the top surface of the wedge-shaped block is provided with a second guide rail, the second sliding block is movably arranged in the second guide rail, and the fixed connecting block is used for fixedly connecting the second sliding block with the turntable bottom plate;
The working platform is provided with a turntable bottom plate limiting part for limiting the turntable bottom plate to move along the direction parallel to the working platform;
First servo motor with the revolving stage support is all fixed to be set up on the revolving stage bottom plate, second servo motor is fixed to be set up work platform is last, second servo motor is used for the drive ball screw rotates, the push pedal cover establish with ball screw's nut is outer, and with ball screw's nut fixed connection, the push pedal is used for promoting the wedge is followed first guide rail removes.
Further, revolving stage bottom plate locating part includes a plurality of linear bearing and a plurality of guiding axle, and is a plurality of linear bearing equipartition is in the four corners of revolving stage support, and is a plurality of linear bearing's axis perpendicular to the revolving stage support, it is a plurality of the guiding axle sets up respectively in a plurality of linear bearing, just one end of guiding axle passes linear bearing fixes on work platform.
Further, the multi-station automatic focusing laser etching machine further comprises a control system, and the control system is electrically connected with the first servo motor, the second servo motor and the laser cavity;
The control system is used for controlling the first servo motor to drive the rotating part of the hollow rotary table to rotate, controlling the second servo motor to drive the ball screw to rotate and controlling the laser cavity to start working.
further, the lifting module comprises a lifting box body, at least one linear guide rail, a screw rod, a rotating handle and a connecting frame, wherein the at least one linear guide rail is arranged in the lifting box body in parallel, two ends of the at least one linear guide rail are fixedly connected with the lifting box body, the screw rod is rotatably arranged in the lifting box body, the at least one linear guide rail and the screw rod are perpendicular to the working platform, one end of the connecting frame is fixedly connected with a sliding block on the at least one linear guide rail and a nut on the screw rod respectively, the other end of the connecting frame is fixedly connected with the laser cavity, and the rotating handle is arranged at one end of the screw rod.
Furthermore, the multi-station automatic focusing laser engraving machine further comprises a machine table outer cover, the machine table outer cover is arranged outside the lifting module, the lifting rotary table and the laser cavity and fixedly connected with the machine table, and a feeding and discharging port and an access door are arranged on the machine table outer cover.
furthermore, the top of the machine table outer cover is also provided with an air suction opening used for being connected with a ventilation system.
Further, multistation automatic focusing radium carving machine still includes light curtain protection device, light curtain protection device includes light curtain sensor and light curtain sensor support, the light curtain sensor passes through this light curtain sensor support with fix on the board dustcoat, just the transmitting terminal and the receiving terminal of light curtain sensor are just respectively to setting up the both sides of business turn over material mouthful.
Furthermore, 6 fasteners are arranged on the rotary indexing disc along the circumferential direction of the rotary indexing disc.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
When treating radium carving work piece and carrying out radium carving man-hour, treat that radium carving work piece fixes on the fastener of rotatory graduated disk earlier, because be equipped with a plurality of fasteners on the rotatory graduated disk, consequently, can once fix a plurality of radium carving work pieces of treating on the rotatory graduated disk, after radium carving has processed one and has treated radium carving work piece, can control graduated disk drive assembly drive rotatory graduated disk and rotate, continue to process the next work piece of treating radium carving. Compared with the existing laser etching machine which can only perform laser etching processing on one workpiece to be etched at one time, the laser etching machine shortens the processing interval waiting time of the laser etching machine, thereby improving the working efficiency of the laser etching machine. Meanwhile, the laser engraving machine further comprises a lifting module and an index plate lifting assembly, the laser cavity is slidably arranged on the lifting module, the sliding direction of the laser cavity is perpendicular to the working platform, the index plate lifting assembly can drive the rotary index plate to lift, when the lens of the laser cavity needs to be focused, the position of the laser cavity can be adjusted by controlling the lifting of the laser cavity on the lifting module, or the index plate lifting assembly is controlled to lift the rotary index plate, so that the position of a workpiece to be laser engraved is adjusted, and the automatic focusing of the laser lens is realized.
drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a multi-station automatic focusing laser etching machine according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a lifting module according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a dial drive assembly according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an embodiment of an index plate lift assembly;
FIG. 5 is a schematic structural diagram of another multi-station automatic focusing laser etching machine according to an embodiment of the present invention;
Fig. 6 is a schematic structural diagram of a light curtain protection device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a multi-station automatic focusing laser etching machine according to an embodiment of the present invention, and as shown in fig. 1, the multi-station automatic focusing laser etching machine 100 includes a machine table 10, a lifting module 20, a lifting turntable 30, and a laser cavity 40. The top of board 10 is equipped with work platform 11, and lifting module 20 and lift revolving stage 30 all set up on work platform 11, and laser cavity 40 slidable sets up on lifting module 20, and the slip direction perpendicular to work platform 11 of laser cavity 40.
The elevating turntable 30 includes a rotating index plate 31, an index plate drive assembly 32, and an index plate elevating assembly 33. The rotary indexing disc 31 is of a disc structure, the rotary indexing disc 31 is arranged right below the laser cavity 40, and a plurality of fasteners 311 used for fixing a workpiece to be laser etched are arranged on the rotary indexing disc 31 along the circumferential direction of the rotary indexing disc. The indexing disc driving assembly 32 is used for driving the rotary indexing disc 31 to rotate, and the indexing disc lifting assembly 33 is used for driving the rotary indexing disc 31 to move in the direction close to the laser cavity 40 or close to the working platform 11.
According to the embodiment of the invention, when the workpiece to be laser-etched is subjected to laser etching processing, the workpiece to be laser etched is fixed on the fastener of the rotary dividing disc, and the rotary dividing disc is provided with a plurality of fasteners, so that a plurality of workpieces to be laser etched can be fixed on the rotary dividing disc at one time, and after one workpiece to be laser etched is processed, the dividing disc driving assembly can be controlled to drive the rotary dividing disc to rotate, and the next workpiece to be laser etched is processed continuously. Compared with the existing laser etching machine which can only perform laser etching processing on one workpiece to be etched at one time, the laser etching machine shortens the processing interval waiting time of the laser etching machine, thereby improving the working efficiency of the laser etching machine. Meanwhile, the laser engraving machine further comprises a lifting module and an index plate lifting assembly, the laser cavity is slidably arranged on the lifting module, the sliding direction of the laser cavity is perpendicular to the working platform, the index plate lifting assembly can drive the rotary index plate to lift, when the lens of the laser cavity needs to be focused, the position of the laser cavity can be adjusted by controlling the lifting of the laser cavity on the lifting module, or the index plate lifting assembly is controlled to lift the rotary index plate, so that the position of a workpiece to be laser engraved is adjusted, and the automatic focusing of the laser lens is realized.
in the present embodiment, the rotary indexing disk 31 is provided with 6 fasteners 311 along its circumferential direction.
Optionally, the bottom of the machine 10 is provided with support legs 12 and pulleys 13 at four corners of the machine 10 to facilitate movement of the machine 10.
Alternatively, the machine 10 may be used to mount optical and electrical components such as industrial personal computers, optical fibers, coolers, etc. The periphery of the machine table 10 is provided with access doors 10a for convenient maintenance. The machine table 10 is further provided with a ventilation opening 10 b.
fig. 2 is a schematic structural diagram of a lifting module according to an embodiment of the present invention, and as shown in fig. 2 and in conjunction with fig. 1, the lifting module 20 includes a lifting box 21, at least one linear guide 22, a screw 23, a rotating handle 24 and a connecting frame 25, the at least one linear guide 22 and the screw 23 are disposed in the lifting box 21 in parallel, two ends of the at least one linear guide 22 are fixedly connected to the lifting box 21, and the screw 23 is rotatably disposed in the lifting box 21. At least one linear guide rail 22 and the screw rod 23 are perpendicular to the working platform 11, one end of a connecting frame 25 respectively penetrates through the lifting box body 21 to be fixedly connected with a sliding block 22a on the at least one linear guide rail 22 and a nut 23a on the screw rod 23, the other end of the connecting frame 25 is fixedly connected with the laser cavity 40, and the rotating handle 24 is arranged at one end of the screw rod 23.
The screw 23 can be controlled to rotate by rotating the rotating handle 24, because the nut 23a on the screw 23 is fixedly connected with the connecting frame 25, and the connecting frame 25 is connected with the slider 22a on the linear guide rail 22, the nut 23a cannot rotate together with the screw 23, relative motion can be generated between the nut 23a and the screw 23, at the moment, the rotating motion of the rotating handle 24 is the horizontal linear motion of the nut 23a on the screw 23, namely, the nut 23a moves up and down along the screw 23, so that the connecting frame 25 is driven to move up and down.
fig. 3 is a schematic structural diagram of an index plate driving assembly according to an embodiment of the present invention, and as shown in fig. 3, the index plate driving assembly 32 includes a first servo motor 321, a turntable support 322, and a hollow turntable 323.
The turntable support 322 is configured to support the hollow turntable 323, the hollow turntable 323 includes a connecting portion and a rotating portion (not shown), the connecting portion is fixedly connected to the turntable support 322, the rotating portion is fixedly connected to the rotary index plate 31, and the first servo motor 321 is configured to drive the rotating portion of the hollow turntable 323 to rotate.
Fig. 4 is a schematic structural diagram of an index plate lifting assembly according to an embodiment of the present invention, and as shown in fig. 4, the index plate lifting assembly 33 includes a rail assembly 331, a turntable base plate 332, a second servo motor 333, a ball screw 334, and a push plate 335.
Two sets of guide rail assemblies 331 are fixedly arranged on the working platform 11, the two sets of guide rail assemblies 331 are arranged in parallel, and each set of guide rail assembly 331 comprises a wedge-shaped plate 3311, a first guide rail 3312, a first slide block 3313, a second guide rail 3314, a second slide block 3315 and a fixed connecting block 3316.
the wedge 3311 includes a bottom surface and a top surface disposed opposite to the bottom surface, the bottom surface being a flat surface, the top surface being an inclined surface, and a distance between the top surface and the bottom surface gradually decreasing. The first guide rail 3312 is fixed to the work platform 11, the first block 3313 is slidably disposed on the first guide rail 3312, and the bottom surface of the wedge 3311 is fixedly connected to the first block 3313. The wedge-shaped block 3311 has a second guide rail 3314 on its top surface, a second block 3315 movably disposed in the second guide rail 3314, and a fixed connecting block 3316 for fixedly connecting the second block 3315 to the turntable base plate 332.
the working platform 11 is provided with a turntable base plate limiting member for limiting the turntable base plate 332 to move along the direction parallel to the working platform 11;
The first servo motor 321 and the turntable support 322 are both fixedly arranged on the turntable base plate 332 (see fig. 3), the second servo motor 333 is fixedly arranged on the working platform 11, the second servo motor 333 is used for driving the ball screw 334 to rotate, the push plate 335 is sleeved outside the nut of the ball screw 334 and is fixedly connected with the nut of the ball screw 334, and the push plate 335 is fixedly connected with the wedge 3311.
When the ball screw 334 rotates, the nut thereon is driven to rotate, because the nut is fixedly connected with the push plate 335, and the push plate 335 is fixedly connected with the wedge 3311, the push plate 335 cannot rotate, so as to convert the rotational motion into a linear motion, the push plate 335 makes a linear motion along the ball screw 334, pushing the wedge 3311 to move along the first guide rail 3312, and the second slide block 3315 is connected with the turntable base plate 332 through the fixed connection block 3316, therefore, the second slide block 3315 cannot move along with the wedge 3311, and the second slide rail 3314 can move relative to the second slide block 3315. At this time, since the wedge 3311 moves, the height of the second slide 3315 also changes, so that the height of the turntable base plate 332 changes, and the rotary index plate 31 is driven to move up and down.
Further, the turntable base plate limiting member comprises a plurality of linear bearings 336 and a plurality of guide shafts 337, the plurality of linear bearings 336 are uniformly distributed at four corners of the turntable support 322, the axes of the plurality of linear bearings 336 are perpendicular to the turntable support 322, the plurality of guide shafts 337 are respectively arranged in the plurality of linear bearings 336, and one end of each guide shaft 337 penetrates through the linear bearing 336 and is fixed on the working platform 11. By providing the turntable base plate stopper, it is possible to restrict the horizontal movement of the turntable support on the working platform 11 and to move the turntable support 332 in a direction perpendicular to the working platform 11.
further, the multi-station automatic focusing laser etching machine further comprises a control system (not shown in the figure), and the control system is electrically connected with the first servo motor 321, the second servo motor 333 and the laser cavity 40.
The control system is used for controlling the first servo motor 321 to drive the rotating part of the hollow rotary table 323 to rotate, and is used for controlling the second servo motor 333 to drive the ball screw 334 to rotate, so as to control the laser cavity 40 to start working.
fig. 5 is a schematic structural diagram of another multi-station automatic focusing laser etching machine according to an embodiment of the present invention, as shown in fig. 5, the multi-station automatic focusing laser etching machine further includes a machine table cover 50, the machine table cover 50 covers the lifting module 20, the lifting turntable 30, and the laser cavity 40 and is fixedly connected to the machine table 10, and the machine table cover 50 is provided with a feeding and discharging port 50a and an access door 50b for facilitating feeding, discharging, and maintenance operations.
Further, the top of the machine table outer cover 50 is also provided with an air suction opening 50c used for being connected with a ventilation system, so that dust generated by laser etching can be conveniently and timely removed, and pollution is prevented.
Further, the multi-station automatic focusing laser etching machine further comprises a light curtain protection device 60.
fig. 6 is a schematic structural diagram of a light curtain protection device according to an embodiment of the present invention, and as shown in fig. 5 and 6, the light curtain protection device 60 includes a light curtain sensor 61 and a light curtain sensor support 62, the light curtain sensor 61 is fixed on the machine table housing 50 through the light curtain sensor support 62, and an emitting end and a receiving end of the light curtain sensor 61 are respectively disposed on two sides of the material inlet/outlet 50a in an opposite manner. Through setting up light curtain protection device, when operating personnel carried out material loading, unloading operation, can shelter from the light that light curtain sensor 61's transmitting terminal sent, light curtain sensor 61's receiving terminal can not receive light this moment and can produce and shelter from the signal of telecommunication. In this embodiment, the light curtain sensor 61 may be electrically connected to the control system. When the control system receives the shielding electric signal sent by the light curtain sensor 61, the control system can control the first servo motor 321, the second servo motor 333 and the laser cavity 40 to stop working, so as to prevent danger.
Optionally, in this embodiment, a start button may be further disposed on the machine 10 or the machine cover 50, so that after the loading is completed, the control system may control the first servo motor 321, the second servo motor 333 and the laser cavity 40 to continue to work.
Optionally, an indicator light may be further disposed on the machine 10 or the machine cover 50, and the control system controls the indicator light to light up when receiving the shielding electric signal sent by the light curtain sensor 61.
The use method of the multi-station automatic focusing laser etching machine provided by the invention is briefly described in the following with reference to the attached drawings 1-6:
And step S1, fixedly arranging the workpiece to be laser etched on the rotary indexing disc 31.
Wherein, can adopt the mode of manual material loading, snatch two at every turn and wait radium carving work piece material loading, the staff can shelter from the formation of light curtain during the material loading, and light curtain sensor sends and shelters from the signal of telecommunication, and control system controls the pilot lamp and lights, shows just material loading, and control system controls first servo motor 321, second servo motor 333 and laser cavity 40 stop work simultaneously.
When the start button is pressed after the feeding is finished, the control system controls the first servo motor 321, the second servo motor 333 and the laser cavity 40 to continue working.
and step S2, adjusting the positions of the laser cavity 40 and the rotary index plate 31 to realize the automatic focusing of the laser lens.
the height of the laser cavity 40 can be adjusted by adjusting the rotary handle 24, and the control system controls the second servo motor 333 to drive the ball screw 334 to rotate, so as to adjust the height of the rotary indexing disc 31. (see the detailed principles above)
And step 3, starting laser work, and controlling the rotary indexing disc 31 to rotate so as to machine a plurality of components to be laser machined.
The first servo motor 321 can be controlled by the control system to drive the rotating part of the hollow rotating table 323 to rotate, so as to drive the rotating index plate 31 to rotate.
In step S3, the workpiece after laser etching is rotated to the material inlet/outlet, and then the material discharging operation is performed. During blanking, a hand can shield the light curtain, the light curtain sensor sends out a shielding electric signal, the control system controls the indicator lamp to light up to show that the material is being loaded, and meanwhile, the control system controls the first servo motor 321, the second servo motor 333 and the laser cavity 40 to stop working to prevent danger.
Or, after all the workpieces on the rotary indexing disc 31 are subjected to laser etching, the blanking operation can be performed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The multi-station automatic focusing laser engraving machine is characterized in that the multi-station automatic focusing laser engraving machine (100) comprises a machine table (10), a lifting module (20), a lifting rotary table (30) and a laser cavity (40), wherein a working platform (11) is arranged at the top of the machine table (10), the lifting module (20) and the lifting rotary table (30) are both arranged on the working platform (11), the laser cavity (40) is arranged on the lifting module (20) in a sliding mode, and the sliding direction of the laser cavity (40) is perpendicular to the working platform (11);
Lifting turntable (30) is including rotatory graduated disk (31), graduated disk drive assembly (32) and graduated disk lifting unit (33), rotatory graduated disk (31) is the disc structure, rotatory graduated disk (31) set up under laser cavity (40), be equipped with a plurality of fasteners (311) that are used for fixed waiting radium carving work piece on rotatory graduated disk (31) along its circumference, graduated disk drive assembly (32) are used for driving rotatory graduated disk (31) rotate, graduated disk lifting unit (33) are used for driving rotatory graduated disk (31) are along being close to laser cavity (40) or being close to the direction removal of work platform (11).
2. The multi-station automatic focusing laser engraving machine according to claim 1, wherein the indexing disc driving assembly (32) comprises a first servo motor (321), a turntable support (322) and a hollow turntable (323);
the rotary table support (322) is used for supporting the hollow rotary table (323), the hollow rotary table (323) comprises a connecting portion and a rotating portion, the connecting portion is fixedly connected with the rotary table support (322), the rotating portion is fixedly connected with the rotary dividing disc (31), and the first servo motor (321) is used for driving the rotating portion of the hollow rotary table (323) to rotate.
3. The multi-station automatic focusing laser engraving machine as claimed in claim 2, wherein the indexing disc lifting assembly (33) comprises a guide rail assembly (331), a turntable base plate (332), a second servo motor (333), a ball screw (334) and a push plate (335);
Two groups of guide rail components (331) are fixedly arranged on the working platform (11), the two groups of guide rail components (331) are arranged in parallel, and each group of guide rail components (331) comprises a wedge-shaped plate (3311), a first guide rail (3312), a first sliding block (3313), a second guide rail (3314), a second sliding block (3315) and a fixed connecting block (3316);
The wedge block (3311) comprises a bottom surface and a top surface arranged opposite to the bottom surface, the bottom surface is a plane, the top surface is an inclined surface, the distance between the top surface and the bottom surface is gradually reduced, the first guide rail (3312) is fixed on the working platform (11), the first slide block (3313) is slidably arranged on the first guide rail (3312), the bottom surface of the wedge block (3311) is fixedly connected with the first slide block (3313), the top surface of the wedge block (3311) is provided with a second guide rail (3314), the second slide block (3315) is movably arranged in the second guide rail (3314), and the fixed connecting block (3316) is used for fixedly connecting the second slide block (3315) with the turntable base plate (332);
The working platform (11) is provided with a turntable bottom plate limiting piece used for limiting the turntable bottom plate to move along the direction parallel to the working platform (11);
First servo motor (321) with revolving stage support (322) all fixed the setting is in on revolving stage bottom plate (332), second servo motor (333) are fixed to be set up work platform (11) is last, second servo motor (333) are used for the drive ball screw (334) rotate, push pedal (335) cover establish with outside the nut of ball screw (334), and with the nut fixed connection of ball screw (334), push pedal (335) with wedge (3311) fixed connection.
4. The multi-station automatic focusing laser engraving machine according to claim 3, wherein the turntable base plate limiting member comprises a plurality of linear bearings (336) and a plurality of guide shafts (337), the plurality of linear bearings (336) are uniformly distributed at four corners of the turntable support (322), the axes of the plurality of linear bearings (336) are perpendicular to the turntable support (322), the plurality of guide shafts (337) are respectively arranged in the plurality of linear bearings (336), and one end of each guide shaft (337) penetrates through the linear bearing (336) and is fixed on the working platform (11).
5. The multi-station automatic focusing laser engraving machine according to claim 3, further comprising a control system electrically connected with the first servo motor (321), the second servo motor (333) and the laser cavity (40);
The control system is used for controlling the first servo motor (321) to drive the rotating part of the hollow rotary table (323) to rotate, controlling the second servo motor (333) to drive the ball screw (334) to rotate, and controlling the laser cavity (40) to start working.
6. The multi-station automatic focusing laser engraving machine according to any one of claims 1 to 5, wherein the lifting module (20) comprises a lifting box body (21), at least one linear guide rail (22), a screw rod (23), a rotating handle (24) and a connecting frame (25), the at least one linear guide rail (22) and the screw rod (23) are arranged in the lifting box body (21) in parallel, two ends of the at least one linear guide rail (22) are fixedly connected with the lifting box body (21), the screw rod (23) is rotatably arranged in the lifting box body (21), the at least one linear guide rail (22) and the screw rod (23) are perpendicular to the working platform (11), one end of the connecting frame (25) is fixedly connected with a sliding block (22a) on the at least one linear guide rail (22) and a nut (23a) on the screw rod (23) respectively, the other end of the connecting frame (25) is fixedly connected with the laser cavity (40), and the rotating handle (24) is arranged at one end of the screw rod (23).
7. The multi-station automatic focusing laser engraving machine according to any one of claims 1 to 5, further comprising a machine table outer cover (50), wherein the machine table outer cover (50) covers the lifting module (20), the lifting turntable (30) and the laser cavity (40) and is fixedly connected with the machine table (10), and a material inlet and outlet (50a) and an access door (50b) are arranged on the machine table outer cover (50).
8. the multi-station automatic focusing laser engraving machine as claimed in claim 7, wherein a suction opening (50c) for connecting with a ventilation system is further arranged at the top of the machine table housing (50).
9. The multi-station automatic focusing laser engraving machine according to claim 7, further comprising a light curtain protection device (60), wherein the light curtain protection device (60) comprises a light curtain sensor (61) and a light curtain sensor support (62), the light curtain sensor (61) is fixed on the machine table outer cover (50) through the light curtain sensor support (62), and the transmitting end and the receiving end of the light curtain sensor (61) are respectively arranged on two sides of the material inlet/outlet (50 a).
10. The multi-station automatic focusing laser engraving machine as claimed in any one of claims 1 to 5, wherein 6 fasteners (311) are arranged on the rotary indexing disc (31) along the circumferential direction of the rotary indexing disc.
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| CN201910713537.5A CN110548997A (en) | 2019-08-02 | 2019-08-02 | Multi-station automatic focusing laser engraving machine |
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| CN201910713537.5A CN110548997A (en) | 2019-08-02 | 2019-08-02 | Multi-station automatic focusing laser engraving machine |
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Application publication date: 20191210 |