CN207895227U - Laser drawing machine - Google Patents
Laser drawing machine Download PDFInfo
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- CN207895227U CN207895227U CN201820258741.3U CN201820258741U CN207895227U CN 207895227 U CN207895227 U CN 207895227U CN 201820258741 U CN201820258741 U CN 201820258741U CN 207895227 U CN207895227 U CN 207895227U
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Abstract
A kind of laser drawing machine, including rack and at least one laser, it is characterised in that further include shaft, laser mounting bracket and workpiece locating platform；Shaft may be rotatably mounted in rack and be connect with shaft lower end for trend, laser mounting bracket up and down, and each laser is installed on laser mounting bracket, and rack, which is equipped with, can drive the rotary drive mechanism that laser mounting bracket rotates around the shaft；Workpiece locating platform is in below laser mounting bracket, and rack, which is equipped with, can drive the workpiece Positioning platform movement mechanism that workpiece locating platform moves in the horizontal direction.The laser drawing machine of the utility model, which can not only be realized, to be projected directly into after quick, high-precision drafting, laser focus on the working face of workpiece, and it is efficient to focus accurate and laser energy, and it is simple in structure, manufacturing cost is low, easy to maintain, is conducive to promote and apply.Moreover, the utility model is not only suitble to the light of flexible workpiece to paint, but also the light of rigid workpiece is suitble to paint.
Description
Technical field
The utility model is related to a kind of laser drawing machines.
Background technology
Laser drawing machine（Abbreviation optical plotter）For drawing various figures, image, word or symbol on photographic film.Swash
Light optical plotter is to be scanned to generate figure to photographic film with laser, can be used for the making of printed circuit board, first, will print
In the drawing image of circuit board processed a to storage array, laser beam is then made to be beaten according to the value of corresponding units in storage array
On or off is closed, and is radiated on photographic film and is exposed, to obtain required egative film.
Traditional laser drawing owner will have two kinds of inner circle cartridge type laser drawing machine and outer roller formula laser drawing machine.
When inner circle cartridge type laser drawing machine works, photographic film by vacuum suction on a barrel-shaped inner wall, send out by laser
The laser beam penetrated, through electronic shutter（The action that laser beam is opened and is closed under electronic shutter control）And light beam intensifier
Luminous point selection mouth after, then reflexed on high-speed rotating tilting speculum by two pieces of speculums, be re-reflected on photographic film
It is exposed.
When outer roller formula laser drawing machine works, photographic film is adsorbed on the outside of circular drum with powerful vacuum pump, rolling
Cylinder quickly rotation.To make photographic film securely be adsorbed on roller, drum rotation speed cannot be excessively high, and otherwise photographic film will be in high speed
Be thrown out of when rotation, so, the rotating speed of outer roller formula laser drawing machine compared with the rotating speed of inner roller formula laser drawing machine mutually very
More, scan exposure speed also accordingly reduces.To solve this problem, laser beam is resolved by multi beam using Amici prism（Such as 32
Beam）, can once be exposed on photographic film so multiple（Such as 32）Pixel is equivalent to sweep speed improving corresponding times
Number（Such as 32 times）.
Digital micro-mirror imaging system more advanced at present, image-forming component are Digital Micromirror Device, and a usual number is micro-
It include large number of micro mirror in mirror device（Such as often row includes 7056 micro mirrors, 64 rows is arranged in, between micro mirror and micro mirror
Away from about 17 u m）, micro mirror is the element for controlling light switch.The light beam that light source is sent out arrives at annular reflection of the concave surface towards light beam
Device（Referred to as the first reflector）Afterwards, it is reflected to annular reflector of another convex surface towards light beam（Referred to as the second reflector）,
Light beam is received after the reflection of the second reflector by Digital Micromirror Device, by the modulation of projecting mirror, then is mapped on refrative mirror, is come
The light beam of autofolding mirror is reflected by a reflector, and eventually arrives at log drum surface（It is equivalent to photographic film）.
Above-mentioned inner circle cartridge type laser drawing machine, outer roller formula laser drawing machine and digital micro-mirror imaging system, which have, draws speed
The egative film advantage with high accuracy that degree is fast, draws, still, due to needing the tilting speculum, Amici prism, number of using precision micro-
The expensive optical component such as mirror device, therefore price is extremely expensive, and maintenance difficult, it is difficult to obtain universal.
Invention content
The technical problem to be solved by the utility model is to provide a kind of laser drawing machine, this laser drawing machine can not only
Enough realize quick, high-precision drafting, and at low cost, it is easy to maintain.The technical solution of use is as follows：
A kind of laser drawing machine, including rack and at least one laser, it is characterised in that further include shaft, laser peace
It shelves and workpiece locating platform；Shaft may be rotatably mounted in rack and to move towards up and down, laser mounting bracket and shaft lower end
Connection, each laser are installed on laser mounting bracket, and rack, which is equipped with, can drive laser mounting bracket to rotate around the shaft
Rotary drive mechanism；The workpiece locating platform is in below laser mounting bracket, and rack, which is equipped with, can drive workpiece fixed
The workpiece Positioning platform movement mechanism that bit platform moves in the horizontal direction.
When above-mentioned laser drawing machine work, by workpiece（Photographic film, or the workpiece with photosensitive layer（Such as there is photosensitive layer
Printed circuit board blanket））It is fixed on workpiece locating platform；Then start laser drawing machine, workpiece Positioning platform movement machine
Structure drives workpiece locating platform and workpiece to be moved in the horizontal direction by the speed of setting and route together, while rotary driving machine
Structure drive shaft rotates and drives laser mounting bracket and each laser to rotate around the shaft, and each laser is opened by the sequence of setting
Or close, the laser irradiation of laser transmitting is exposed on workpiece, and the position being irradiated with a laser on workpiece forms exposure
Point, in this way, after workpiece locating platform and workpiece complete movement by the speed and route of setting, you can needed for being drawn out on workpiece
Exposure figure（The summation of all exposure points constitutes the exposure figure）.By taking printed circuit board as an example, first by printed circuit board
In circuit drawing image a to storage array（Storage array includes the coordinate for the point for needing to expose）, then make laser beam according to
The value of corresponding units opens or closes in storage array, is radiated on the printed circuit board blanket with photosensitive layer and is exposed,
To obtain required exposure figure；Subsequently the print with required line pattern is obtained after conventional development, layers of copper corrosion
Circuit board processed.In general, above-mentioned photographic film or photosensitive layer can only expose under the laser irradiation of specific wavelength, and ambient lighting light
Then use wavelength and the larger light of the laser gap.
Above-mentioned laser can realize quick switching, realize that the moment break-make of laser beam, laser are needed on workpiece
When the position to be exposed is to corresponding to（Laser emits laser at this time, and exposure point is formed on the corresponding position of workpiece）, laser
Device be not required on workpiece exposure position to it is corresponding when（Laser does not emit laser at this time）.The switch of laser can be by swashing
Light device driving circuit controls, and routine techniques can be used in laser driving circuit, and no further details to be given herein.
Above-mentioned laser usually carries beam condensing unit, and the laser beam that laser is sent out is made more to concentrate.
In a kind of concrete scheme, above-mentioned rotary drive mechanism includes rotary drive motor, and rotary drive motor is fixedly mounted
In rack, the power output shaft of rotary drive motor is connect with rotating shaft transmission.The power output shaft of rotary drive motor can lead to
It crosses shaft coupling or clutch to connect with shaft upper end, can also be connect with shaft upper end by other transmission mechanisms.
In general, above-mentioned laser drawing machine further includes the encoder of the rotational angle for detecting shaft, examined by encoder
The angle that shaft turns over is surveyed, in conjunction with the distance between laser and shaft rotation center, the position coordinates to obtain laser are believed
Breath.The control system of laser drawing machine is fed back to after the angle information of encoder acquisition shaft, control system can be according to the angle
Information is spent, in conjunction with the distance between laser and shaft rotation center, the position for obtaining laser and its laser beam of transmitting is sat
Mark.Above-mentioned encoder generally use rotary encoder, such as axle sleeve type rotary encoder.Encoder can directly detect the rotation of shaft
Angle；Also the rotational angle of the power output shaft of rotary drive motor can be directly detected, the power in conjunction with rotary drive motor is defeated
Gear ratio calculation between shaft and shaft goes out the rotational angle of shaft（Pass through shaft coupling in the power output shaft of rotary drive motor
In the case that device is connect with shaft upper end, the rotational angle of the power output shaft of rotary drive motor is equal to the angle of rotation of shaft
Degree）.
In preferred embodiment, above-mentioned laser drawing machine includes multiple lasers, between each laser and shaft rotation center
Distance is consistent.More preferable above-mentioned multiple lasers are uniformly distributed along the circumferential direction of shaft.By the way that multiple lasers are arranged, can further improve
Light paints speed.
In preferred embodiment, above-mentioned rack is equipped with shield, and laser mounting bracket and laser are in the cavity of shield.Shield
Cover plays a protective role, and can prevent operating personnel from touching high-speed rotating laser mounting bracket and injured.
In a kind of preferred embodiment, above-mentioned workpiece Positioning platform movement mechanism includes linear guide rail, and linear guide rail is set to
In rack and horizontally disposed, workpiece locating platform bottom is equipped with sliding block, and sliding block is slidably matched with linear guide rail, rack
The translation mechanism that sliding block and workpiece locating platform are moved along linear guide rail can be driven by being equipped with.After translation mechanism starts, drive
Movable slider, workpiece locating platform and its workpiece above are moved along linear guide rail, and workpiece is scanned in the process of moving to expose
Light.In this case, laser can all form one of the trajectory alignment by approximate arc per rotating a circle around the shaft on workpiece
Row exposure point.Linear guide rail is typically provided with two, and workpiece locating platform bottom is equipped with to be slided with two linear guide rails respectively
Two sliding blocks of cooperation（Or two groups of sliding blocks）.
In a kind of concrete scheme, above-mentioned translation mechanism includes servo motor and ball screw, and the screw rod of ball screw can turn
Dynamic to be mounted in rack and be mutually parallel with linear guide rail, the nut of ball screw is connect with workpiece locating platform, servo
Motor is mounted in rack, and the power output shaft of servo motor and the screw drive of ball screw connect.Another concrete scheme
In, above-mentioned translation mechanism includes servo motor, screw rod and nut, and servo motor is mounted in rack, and screw rod may be rotatably mounted at
It is connect in rack and with the pto shaft drive of servo motor, screw rod is mutually parallel with linear guide rail, and nut is mounted on
It is engaged on workpiece locating platform and with screw rod.In another concrete scheme, above-mentioned translation mechanism includes linear motor, straight-line electric
Machine is mounted in rack, and the power output end of linear motor is connect with workpiece locating platform.
In another preferred embodiment, above-mentioned workpiece Positioning platform movement mechanism include first straight line shape guide rail, translating base and
Second straight line shape guide rail；First straight line shape guide rail is in rack and horizontally disposed, and translating base bottom is equipped with first and slides
Block, the first sliding block are slidably matched with first straight line shape guide rail, and rack, which is equipped with, can drive the first sliding block and translating base along first
First translation mechanism of linear guide rail movement；Second straight line shape guide rail is set on translating base, and second straight line shape guide rail is along horizontal
Direction be arranged and have angle with first straight line shape guide rail, workpiece locating platform bottom be equipped with the second sliding block, the second sliding block with
Second straight line shape guide rail is slidably matched, and translating base, which is equipped with, can drive the second sliding block and workpiece locating platform along second straight line shape
Second translation mechanism of guide rail movement.In more preferable scheme, above-mentioned second straight line shape guide rail mutually hangs down with first straight line shape guide rail
Directly.When laser drawing machine works, the movement of workpiece that can by one of following two ways control workpiece locating platform and its above：
（1）First, start the first translation mechanism（The second translation mechanism suspends at this time）, the first sliding block of driving, translating base, the second translation machine
Structure, workpiece locating platform and its workpiece above are moved along first straight line shape guide rail together, and workpiece is swept in the process of moving
Retouch exposure（Laser can all form a line exposure by the trajectory alignment of approximate arc per rotating a circle around the shaft on workpiece
Point）；Workpiece locating platform and its workpiece above are completed after the movement of first straight line shape guide rail, and the first translation mechanism is temporary
Stop, start the second translation mechanism, drives workpiece locating platform and its workpiece above to be moved together along second straight line shape guide rail, work
Part is scanned exposure in the process of moving（Laser can all be formed by approximate arc per rotating a circle around the shaft on workpiece
Trajectory alignment a line exposure point）, exposure point arrangement track and the first translation mechanism that the second translation mechanism is formed when driving
The exposure point arrangement track cross formed when driving, forms the exposure locus of points of meshy arrangement；Or（2）First start the second translation machine
Structure（The first translation mechanism suspends at this time）, workpiece locating platform and its workpiece above is driven to be moved together along second straight line shape guide rail
Dynamic, workpiece is scanned exposure in the process of moving（Laser can all be formed by approximation per rotating a circle around the shaft on workpiece
A line exposure point of the trajectory alignment of arc）；Workpiece locating platform and its workpiece above are completed along second straight line shape guide rail
After movement, the second translation mechanism pause, start the first translation mechanism, driving the first sliding block, translating base, the second translation mechanism,
Workpiece locating platform and its workpiece above are moved along first straight line shape guide rail together, and workpiece is scanned in the process of moving to expose
Light（Laser can all form a line exposure point of the trajectory alignment by approximate arc per rotating a circle around the shaft on workpiece）；
The exposure point arrangement rail that the exposure point arrangement track that first translation mechanism is formed when driving is formed when being driven with the second translation mechanism
Mark intersects, and forms the exposure locus of points of meshy arrangement.Drive workpiece fixed in two steps using the first translation mechanism, the second translation mechanism
Bit platform and its above workpiece movement, light is scanned to workpiece in two steps and is painted, both can ensure that scanning light drawing tools have it is higher
Resolution ratio（It can reach 2-0.5 micron orders）, and can make workpiece locating platform that can all translate quickly in two directions, improve light
Paint speed.
In a kind of concrete scheme, above-mentioned first translation mechanism includes first servo motor and the first ball screw, the first rolling
The screw rod of ballscrew may be rotatably mounted in rack and be mutually parallel with first straight line shape guide rail, the nut of the first ball screw
It is connect with translating base, first servo motor is mounted in rack, the power output shaft of first servo motor and the first ball screw
Screw drive connection.In another concrete scheme, above-mentioned first translation mechanism includes first servo motor, the first screw rod and
One nut, first servo motor are mounted in rack, and the first screw rod may be rotatably mounted in rack and and first servo motor
Pto shaft drive connection, the first screw rod is mutually parallel with first straight line shape guide rail, and the first nut is on translating base
And it is engaged with the first screw rod.In another concrete scheme, above-mentioned first translation mechanism includes first straight line motor, first straight line
Motor is mounted in rack, and the power output end of first straight line motor is connect with translating base.First straight line shape guide rail is typically provided with
Two, translating base bottom is equipped with two the first sliding blocks being slidably matched respectively with two first straight line shape guide rails（Or two group first
Sliding block）.
In a kind of concrete scheme, above-mentioned second translation mechanism includes the second servo motor and the second ball screw, the second rolling
The screw rod of ballscrew may be rotatably mounted on translating base and be mutually parallel with second straight line shape guide rail, the spiral shell of the second ball screw
Mother connect with workpiece locating platform, and the second servo motor is on the translating base, the power output shaft of the second servo motor and the
The screw drive of two ball screws connects.In another concrete scheme, above-mentioned second translation mechanism includes the second servo motor, the
Two screw rods and the second nut, the second servo motor are mounted on translating base, the second screw rod may be rotatably mounted on translating base and
It is connect with the pto shaft drive of the second servo motor, the second screw rod is mutually parallel with second straight line shape guide rail, the second nut
It is engaged on workpiece locating platform and with the second screw rod.In another concrete scheme, above-mentioned second translation mechanism includes
Second straight line motor, second straight line motor are mounted on translating base, and the power output end of second straight line motor and workpiece positioning are flat
Platform or the connection of the second sliding block.Second straight line shape guide rail is typically provided with two, workpiece locating platform bottom be equipped with respectively with two the
Two the second sliding blocks that two linear guide rails are slidably matched（Or two group of second sliding block）.
In preferred embodiment, above-mentioned workpiece locating platform is equipped with the workpiece that can be fixed on workpiece on workpiece locating platform
Positioning device.In a kind of concrete scheme, above-mentioned Working piece positioning device includes air-suction cover and negative-pressure air fan, and air-suction cover is fixed set on workpiece
Below bit platform, the cavity of air-suction cover is connected to the air inlet of negative-pressure air fan, and workpiece locating platform is equipped with multiple and air-suction cover
Cavity connection suction hole, when negative-pressure air fan is evacuated air-suction cover, negative pressure can be formed around each suction hole, workpiece is inhaled
It is attached on workpiece locating platform.In another concrete scheme, above-mentioned Working piece positioning device includes being set to workpiece locating platform upper table
Multiple fixtures on face, each fixture can clamp the edge position of workpiece, the position of workpiece fixed respectively.Another specific side
In case, above-mentioned Working piece positioning device includes multiple limited blocks, forms the space that can place workpiece between each limited block, places work
After part, position corresponding with workpiece edge position contacts each limited block respectively, and the position of workpiece is fixed.
The laser drawing machine of the utility model can not only be realized directly to be thrown after quick, high-precision drafting, laser focus
It on shadow to the working face of workpiece, focuses accurately and laser energy is efficient and simple in structure, without using expensive oblique
The optical components such as speculum, Amici prism, Digital Micromirror Device are set, manufacturing cost is low, easy to maintain, is conducive to promote and apply.
Moreover, when the laser drawing machine progress light of the utility model is painted, the working face of workpiece is plane, without being bent to workpiece,
Not only it was suitble to the light of flexible workpiece to paint, but also the light of rigid workpiece is suitble to paint.
Description of the drawings
Fig. 1 is the structural schematic diagram of the preferred embodiment in the utility model 1；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the stereogram of laser drawing machine shown in Fig. 1；
Fig. 4 is the structural schematic diagram of the preferred embodiment in the utility model 2；
Fig. 5 is the B-B sectional views of Fig. 4；
Fig. 6 is the stereogram of laser drawing machine shown in Fig. 4.
Specific implementation mode
Embodiment 1
As shown in Figure 1-Figure 3, this laser drawing machine includes that rack 1, shaft 2, laser mounting bracket 3, workpiece positioning are flat
Platform 4 and two lasers 5；Shaft 2 may be rotatably mounted in rack 1 and to move towards up and down（Shaft 2 is mounted on machine by bearing 17
On frame 1）, laser mounting bracket 3 connect with 2 lower end of shaft, and each laser 5 is installed on laser mounting bracket 3, in rack 1
Equipped with the rotary drive mechanism that can drive 2 rotations around the shaft of laser mounting bracket 3；Workpiece locating platform 4 is in laser peace
3 lower sections are shelved, rack 1, which is equipped with, can drive the workpiece Positioning platform movement machine that workpiece locating platform 4 moves in the horizontal direction
Structure.
In the present embodiment, the distance between two-laser 5 and 2 rotation center of shaft are consistent, and the two lasers 5 are along turning
The circumferential direction of axis 2 is uniformly distributed（Two-laser 5 is staggered 180 degree in the circumferential direction of shaft 2）.
Laser 5 can realize quick switching, realize the moment break-make of laser beam, laser with need to expose on workpiece
When the position of light is to corresponding to（Laser emits laser at this time, and exposure point is formed on the corresponding position of workpiece）, laser with
When being not required to the position of exposure on workpiece to corresponding to（Laser does not emit laser at this time）.The switch of laser 5 can pass through laser
Device driving circuit controls, and routine techniques can be used in laser driving circuit, and no further details to be given herein.
Rotary drive mechanism includes rotary drive motor 6, and rotary drive motor 6 is fixedly mounted in rack 1, rotation driving
The power output shaft of motor 6 is sequentially connected with shaft 2（The power output shaft of rotary drive motor 6 passes through shaft coupling in the present embodiment
Device is connect with 2 upper end of shaft）.
Above-mentioned laser drawing machine further includes the encoder 8 of the rotational angle for detecting shaft 2（Encoder in the present embodiment
8 directly detect the rotational angle of the power output shaft of rotary drive motor, the angle of rotation of the power output shaft of rotary drive motor
Rotational angle of the degree equal to shaft）, encoder 8 uses rotary encoder, such as axle sleeve type rotary encoder.
In the present embodiment, workpiece Positioning platform movement mechanism includes linear guide rail 9, and linear guide rail 9 is set in rack 1
And it is horizontally disposed, 4 bottom of workpiece locating platform is equipped with sliding block 10, and sliding block 10 is slidably matched with linear guide rail 9, rack
1 be equipped with can drive the translation mechanism that sliding block 10 and workpiece locating platform 4 are moved along linear guide rail 9.Linear guide rail 9 is set
There are two, 4 bottom of workpiece locating platform is equipped with two sliding blocks 10 being slidably matched respectively with two linear guide rails 9（Or two groups
Sliding block 10）.Translation mechanism includes servo motor 11, screw rod 12 and nut 13, and servo motor 11 is mounted in rack 1, screw rod 12
It may be rotatably mounted in rack 1 and connect with the pto shaft drive of servo motor 11, screw rod 12 and 9 phase of linear guide rail
Mutually parallel, nut 13 is mounted on workpiece locating platform 4 and is engaged with screw rod 12.The power output shaft of servo motor 11 can lead to
It crosses shaft coupling or clutch to connect with screw rod one end, can also be connect with screw rod by other transmission mechanisms.
Workpiece locating platform 4 is equipped with the Working piece positioning device that can be fixed on workpiece on workpiece locating platform 4.This reality
It applies in example, Working piece positioning device includes air-suction cover 14 and negative-pressure air fan（Negative-pressure air fan is not drawn into figure）, air-suction cover 14 is set on work
1 lower section of part locating platform, the cavity 15 of air-suction cover 14 are connected to the air inlet of negative-pressure air fan, and workpiece locating platform 4 is equipped with more
A suction hole 16 being connected to the cavity 15 of air-suction cover 14 can be in each suction hole 16 when negative-pressure air fan is evacuated air-suction cover 14
Surrounding forms negative pressure, by absorption of workpieces on workpiece locating platform 4.
Shield can be also equipped in rack 1, laser mounting bracket and laser are in the cavity of shield, and shield plays protection
Effect, can prevent operating personnel from touching high-speed rotating laser mounting bracket and injured.
The operation principle of brief description once this laser drawing machine：
When work, by workpiece（Photographic film, or the workpiece with photosensitive layer（Such as printed circuit slab with photosensitive layer
Plate））It is fixed on workpiece locating platform 4；Then start laser drawing machine, workpiece Positioning platform movement mechanism drives workpiece positioning
Platform 4 and workpiece are moved by the speed of setting and route in the horizontal direction together（After translation mechanism starts, driving sliding block 10,
Workpiece locating platform 4 and its workpiece above are moved along linear guide rail 9 by the speed of setting, workpiece in the process of moving by
Scan exposure）, while 6 drive shaft 2 of rotary drive motor rotates and drives laser mounting bracket 3 and each laser 5 around the shaft 2
Rotation（The angle that shaft 2 turns over is detected by encoder 8, in conjunction with the distance between laser 5 and 2 rotation center of shaft, to obtain
Take the location coordinate information of laser 5；The control system of laser drawing machine is fed back to after the angle information of the acquisition shaft of encoder 8
System, control system can obtain laser according to the angle information in conjunction with the distance between laser 5 and 2 rotation center of shaft
5 and its transmitting laser beam position coordinates）, each laser 5 opens or closes by the sequence of setting, and what laser 5 emitted swashs
Light is radiated on workpiece and is exposed, and the position being irradiated with a laser on workpiece forms exposure point（Laser is every to be rotated around the shaft
One week, a line exposure point of the trajectory alignment by approximate arc can be all formed on workpiece）, in this way, workpiece locating platform 4 and work
After part completes movement by the speed and route of setting, you can draw out required exposure figure on workpiece（All exposure points
Summation constitutes the exposure figure）.By taking printed circuit board as an example, first by the circuit drawing image of printed circuit board to a storage battle array
In row（Storage array includes the coordinate for the point for needing to expose）, laser beam is then made to be beaten according to the value of corresponding units in storage array
On or off is closed, and is radiated on the printed circuit board blanket with photosensitive layer and is exposed, to obtain required exposure figure；
Subsequently the printed circuit board with required line pattern is obtained after conventional development, layers of copper corrosion.
In other specific implementation modes, above-mentioned translation mechanism may also comprise servo motor and ball screw, ball screw
Screw rod may be rotatably mounted in rack and be mutually parallel with linear guide rail, and nut and the workpiece locating platform of ball screw connect
It connects, servo motor is mounted in rack, and the power output shaft of servo motor and the screw drive of ball screw connect.Above-mentioned translation
Mechanism may also comprise linear motor, and linear motor is mounted in rack, power output end and the workpiece locating platform of linear motor
Connection.
In other specific implementation modes, above-mentioned Working piece positioning device may also comprise on workpiece locating platform upper surface
Multiple fixtures, each fixture can clamp the edge position of workpiece, the position of workpiece fixed respectively.Above-mentioned Working piece positioning device
May include multiple limited blocks, form the space that can place workpiece between each limited block, after placing workpiece, each limited block respectively with
The corresponding position contact in workpiece edge position, the position of workpiece is fixed.
Embodiment 2
As shown in Figure 4-Figure 6, the present embodiment difference from example 1 is that workpiece Positioning platform movement mechanism knot
Structure is different, remaining structure is same as Example 1.
In the present embodiment, workpiece Positioning platform movement mechanism includes that first straight line shape guide rail 18, translating base 19 and second are straight
Linear guide rail 20；First straight line shape guide rail 18 is in rack 1 and horizontally disposed, and 19 bottom of translating base is equipped with first and slides
Block 21, the first sliding block 21 are slidably matched with first straight line shape guide rail 18, and rack 1, which is equipped with, can drive the first sliding block 21 and translation
The first translation mechanism that seat 19 is moved along first straight line shape guide rail 18；Second straight line shape guide rail 20 is set on translating base 19, and second
Linear guide rail 20 is horizontally disposed and has angle with first straight line shape guide rail 18（Second straight line shape in the present embodiment
Guide rail 20 is mutually perpendicular to first straight line shape guide rail 18）, 14 bottom of workpiece locating platform is equipped with the second sliding block 22, the second sliding block 22
It is slidably matched with second straight line shape guide rail 20, translating base 19, which is equipped with, can drive 14 edge of the second sliding block 22 and workpiece locating platform
The second translation mechanism that second straight line shape guide rail 20 moves.First translation mechanism includes first servo motor 23, the first screw rod 24
With the first nut 25, first servo motor 23 is mounted in rack 1, the first screw rod 24 may be rotatably mounted in rack 1 and with
The pto shaft drive of first servo motor 23 connects, and the first screw rod 24 is mutually parallel with first straight line shape guide rail 18, and first
Nut 25 is mounted on translating base 19 and is engaged with the first screw rod 24.Second translation mechanism includes the second servo motor 26, the
Two screw rods 27 and the second nut 28, the second servo motor 26 are mounted on translating base 19, and the second screw rod 27 may be rotatably mounted at flat
It moves on seat 19 and is connect with the pto shaft drive of the second servo motor 26, the second screw rod 27 and second straight line shape guide rail 20
It is mutually parallel, the second nut 28 is mounted on workpiece locating platform 14 and is engaged with the second screw rod 27.First servo motor 23
Power output shaft can be connect with 24 one end of the first screw rod by shaft coupling or clutch, can also pass through other transmission mechanisms and
One screw rod connects.The power output shaft of second servo motor 26 can be connected by shaft coupling or clutch and 27 one end of the second screw rod
It connects, can also be connect with the second screw rod by other transmission mechanisms.
When the laser drawing machine work of the present embodiment, can be controlled by one of following two ways workpiece locating platform 14 and its
The movement of workpiece above：
（1）First, start first servo motor 23（The second servo motor 26 suspends at this time）, first servo motor 23 passes through
First screw rod 24, the first nut 25 drive the first sliding block 21, translating base 19, the second translation mechanism, workpiece locating platform 14 and its
Workpiece above is moved along first straight line shape guide rail 18 together, and workpiece is scanned exposure in the process of moving（Laser often around
Shaft rotates a circle, and a line exposure point of the trajectory alignment by approximate arc can be all formed on workpiece）；Workpiece locating platform 14
And its workpiece above is completed after the movement of first straight line shape guide rail 18, first servo motor 23 is suspended, and starts second and watches
Take motor 26, the second servo motor 26 drives workpiece locating platform 14 and its above by the second screw rod 27, the second nut 28
Workpiece is moved along second straight line shape guide rail 20 together, and workpiece is scanned exposure in the process of moving（Laser is every to be revolved around the shaft
It circles, can all form a line exposure point of the trajectory alignment by approximate arc on workpiece）, shape when the second translation mechanism drives
At exposure point arrangement track and the first translation mechanism drive when the exposure point that is formed arrange track cross, form meshy arrangement
Expose the locus of points.
Or（2）First start the second servo motor 26（First servo motor 23 is suspended at this time）, the second servo motor 26 passes through
Second screw rod 27, the second nut 28 driving workpiece locating platform 14 and its workpiece above are moved along second straight line shape guide rail 20 together
Dynamic, workpiece is scanned exposure in the process of moving（Laser can all be formed by approximation per rotating a circle around the shaft on workpiece
A line exposure point of the trajectory alignment of arc）；Workpiece locating platform 14 and its workpiece above are completed along second straight line shape guide rail
After 20 movement, the pause of the second servo motor 26 starts first servo motor 23, and first servo motor 23 passes through the first screw rod
24, the first nut 25 drives the first sliding block 21, translating base 19, the second translation mechanism, workpiece locating platform 14 and its work above
Part is moved along first straight line shape guide rail 18 together, and workpiece is scanned exposure in the process of moving（Laser is every to be rotated around the shaft
One week, a line exposure point of the trajectory alignment by approximate arc can be all formed on workpiece）；First translation mechanism is formed when driving
The exposure point arrangement track cross that is formed when driving of exposure point arrangement track and the second translation mechanism, form the exposure of meshy arrangement
Luminescent spot track.
In other specific implementation modes, the first translation mechanism may also comprise first servo motor and the first ball screw, the
The screw rod of one ball screw may be rotatably mounted in rack and be mutually parallel with first straight line shape guide rail, the first ball screw
Nut is connect with translating base, and first servo motor is mounted in rack, the power output shaft of first servo motor and the first ball
The screw drive of lead screw connects.Above-mentioned first translation mechanism may also comprise first straight line motor, and first straight line motor is mounted on machine
On frame, the power output end of first straight line motor is connect with translating base.First straight line shape guide rail is typically provided with two, translating base bottom
Portion is equipped with two the first sliding blocks being slidably matched respectively with two first straight line shape guide rails（Or two group of first sliding block）.
In other specific implementation modes, the second translation mechanism may also comprise the second servo motor and the second ball screw, the
The screw rod of two ball screws may be rotatably mounted on translating base and be mutually parallel with second straight line shape guide rail, the second ball screw
Nut connect with workpiece locating platform, the second servo motor be mounted on translating base on, the power output shaft of the second servo motor
It is connect with the screw drive of the second ball screw.Above-mentioned second translation mechanism may also comprise second straight line motor, second straight line electricity
Machine is mounted on translating base, and the power output end of second straight line motor is connect with workpiece locating platform or the second sliding block.Second is straight
Linear guide rail is typically provided with two, and workpiece locating platform bottom is equipped with two to be slidably matched respectively with two second straight line shape guide rails
A second sliding block（Or two group of second sliding block）.
Claims (10)
1. a kind of laser drawing machine, including rack and at least one laser, it is characterised in that further include shaft, laser installation
Frame and workpiece locating platform；Shaft may be rotatably mounted in rack and connect for trend up and down, laser mounting bracket and shaft lower end
It connects, each laser is installed on laser mounting bracket, and rack, which is equipped with, can drive laser mounting bracket to rotate around the shaft
Rotary drive mechanism；The workpiece locating platform is in below laser mounting bracket, and rack, which is equipped with, to drive workpiece to position
The workpiece Positioning platform movement mechanism that platform moves in the horizontal direction.
2. laser drawing machine according to claim 1, it is characterized in that：The rotary drive mechanism includes rotation driving electricity
Machine, rotary drive motor are fixedly mounted in rack, and the power output shaft of rotary drive motor is connect with rotating shaft transmission.
3. laser drawing machine according to claim 1, it is characterized in that：The laser drawing machine further includes for detecting shaft
Rotational angle encoder.
4. laser drawing machine according to claim 1, it is characterized in that：The laser drawing machine includes multiple lasers, respectively
The distance between laser and shaft rotation center are consistent；The multiple laser is uniformly distributed along the circumferential direction of shaft.
5. laser drawing machine according to claim 1, it is characterized in that：The rack is equipped with shield, laser mounting bracket
It is in the cavity of shield with laser.
6. laser drawing machine according to claim 1, it is characterized in that：The workpiece locating platform is equipped with can be by workpiece
The Working piece positioning device being fixed on workpiece locating platform；Working piece positioning device includes air-suction cover and negative-pressure air fan, and air-breathing is provide with
Below workpiece locating platform, the cavity of air-suction cover is connected to the air inlet of negative-pressure air fan, and workpiece locating platform is equipped with multiple
The suction hole being connected to the cavity of air-suction cover.
7. according to claim 1-6 any one of them laser drawing machines, it is characterized in that：Workpiece Positioning platform movement mechanism
Including linear guide rail, linear guide rail is in rack and horizontally disposed, and workpiece locating platform bottom is equipped with sliding block,
Sliding block is slidably matched with linear guide rail, and rack, which is equipped with, can drive sliding block and workpiece locating platform to be moved along linear guide rail
Translation mechanism.
8. laser drawing machine according to claim 7, it is characterized in that：The translation mechanism include servo motor, screw rod and
Nut, servo motor are mounted in rack, and screw rod may be rotatably mounted at the biography of the power output shaft in rack and with servo motor
Dynamic connection, screw rod are mutually parallel with linear guide rail, and nut is mounted on workpiece locating platform and is engaged with screw rod.
9. according to claim 1-6 any one of them laser drawing machines, it is characterized in that：Workpiece Positioning platform movement mechanism
Including first straight line shape guide rail, translating base and second straight line shape guide rail；First straight line shape guide rail is set in rack and along level side
To setting, translating base bottom is equipped with the first sliding block, and the first sliding block is slidably matched with first straight line shape guide rail, and rack is equipped with can
The first translation mechanism for driving the first sliding block and translating base to be moved along first straight line shape guide rail；Second straight line shape guide rail is set to translation
On seat, second straight line shape guide rail is horizontally disposed and has angle with first straight line shape guide rail, workpiece locating platform bottom
Portion is equipped with the second sliding block, and the second sliding block is slidably matched with second straight line shape guide rail, and translating base, which is equipped with, can drive the second sliding block
And the second translation mechanism that workpiece locating platform is moved along second straight line shape guide rail.
10. laser drawing machine according to claim 9, it is characterized in that：First translation mechanism includes the first servo electricity
Machine, the first screw rod and the first nut, first servo motor are mounted in rack, the first screw rod may be rotatably mounted in rack and
It is connect with the pto shaft drive of first servo motor, the first screw rod is mutually parallel with first straight line shape guide rail, the first nut
It is engaged on translating base and with the first screw rod；Second translation mechanism include the second servo motor, the second screw rod and
Second nut, the second servo motor are mounted on translating base, and the second screw rod may be rotatably mounted on translating base and be watched with second
The pto shaft drive connection of motor is taken, the second screw rod is mutually parallel with second straight line shape guide rail, and the second nut is mounted on work
It is engaged on part locating platform and with the second screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820258741.3U CN207895227U (en) | 2018-02-14 | 2018-02-14 | Laser drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820258741.3U CN207895227U (en) | 2018-02-14 | 2018-02-14 | Laser drawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207895227U true CN207895227U (en) | 2018-09-21 |
Family
ID=63540398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820258741.3U Expired - Fee Related CN207895227U (en) | 2018-02-14 | 2018-02-14 | Laser drawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207895227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196433A (en) * | 2018-02-14 | 2018-06-22 | 温培彬 | Laser drawing machine |
-
2018
- 2018-02-14 CN CN201820258741.3U patent/CN207895227U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196433A (en) * | 2018-02-14 | 2018-06-22 | 温培彬 | Laser drawing machine |
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Granted publication date: 20180921 Termination date: 20220214 |