CN103522546A - High-precision laser photocuring 3D (three dimensional) printer - Google Patents
High-precision laser photocuring 3D (three dimensional) printer Download PDFInfo
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- CN103522546A CN103522546A CN201310443035.8A CN201310443035A CN103522546A CN 103522546 A CN103522546 A CN 103522546A CN 201310443035 A CN201310443035 A CN 201310443035A CN 103522546 A CN103522546 A CN 103522546A
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Abstract
The invention relates to a high-precision laser photocuring 3D (three dimensional) printer. The high-precision laser photocuring 3D printer comprises a shell and a pedestal. The high-precision laser photocuring 3D printer has the beneficial effects that one end of a high-precision ball screw is connected with a servo motor, the control precision of the servo motor is guaranteed by a rotary encoder at the rear end of a motor shaft and is accurate, and the high-precision laser photocuring 3D printer utilizes the servo motor, so that the printer is stable, and the energy consumption is reduced; as the ball screw has the characteristics of high positioning precision, small friction force, high rigidity and strong load capacity, the molding precision of the printer is high; a circuit control module is connected with a touch screen and a power supply switch respectively through data wires to intelligently control the printer, so that the control precision and processing efficiency are increased; a digital projection device comprises a digital projector horizontally fixed on the upper side of the pedestal, and a plane mirror, so that the structure of the printer is compact; the digital projection device comprises an ultraviolet source and a focusing lens, and the focusing lens is arranged above the ultraviolet source, so that the realizing theory is simple, and the cost performance is high.
Description
Technical field
The present invention relates to the solid 3D printer of a kind of high-precision laser light, relate in particular to the solid 3D printer of high-precision laser light in a kind of electronic imaging device field.
Background technology
It is a kind of technique that adopts stereo carving (Stereolithography) principle that photosensitive resin selectively solidifies, and is called for short SLA, is a kind of rapid shaping technique occurring the earliest.
SLA forming principle is as follows: in resin storage tank, fill with liquid photosensitive resin, it can rapid curing under the irradiation of UV laser beam.When forming process starts, the height of liftable workbench in the next cross section of liquid level bed thickness, the laser beam after focusing, under the control of computer, the requirement according to cross section profile, scans along liquid level, make to be scanned the resin solidification in region, thereby obtain the resin flake of this cross section profile.Then, the height of workbench decline one deck thin slice, is just covered by the new liquid resin of one deck with the resin flake solidifying, so that carrying out second layer laser scanning solidifies, new curing one deck is bonded on front one deck, so repeats endlessly, until whole formed product is complete.Last lifting platform emersion liquid resin surface, takes out workpiece, cleans, place to go support, regelate and any surface finish processing etc.
Photosensitive resin selectively solidifies rapid shaping technique and is suitable for making medium and small shape workpiece, can directly obtain the product of resin or similar engineering plastics.Be mainly used in the prototype of conceptual model, or be used for doing simple assembly test and process planning.
The shortcoming of existing printer technology:
1, equipment size is huge, only towards commercial Application, very expensive, is not that ordinary enterprises can bear;
2, in the only 3000 hours life-span of He-Cd laser pipe, price is more expensive, and owing to need whole cross section being scanned and be solidified, molding time be long and precision is not high, so cost of manufacture is relatively high;
3, need to design the supporting construction of workpiece, to guarantee that each structure position of making can reliably locate in forming process, supporting construction need be when not solidifying completely manual removal, easily destroy profiled member, complex operation.
Summary of the invention
The present invention aims to provide a kind of by technology such as laser photocuring, SERVO CONTROL and high precision ball screw rod transmissions, realize high-precision Stereolithography, improve formed precision (0.1mm brings up to 0.03mm), simplified forming process, improve working (machining) efficiency, reduce volume, reduce the solid 3D printer of high-precision laser light of energy consumption.
The solid 3D printer of a kind of high-precision laser light comprises shell and base, shell is connected with base upside, described shell inner side is provided with ball wire pole socket, ball wire pole socket one side is provided with line slideway, high precision ball screw mandrel one end is connected with ball wire pole socket, the high precision ball screw mandrel other end is connected with servomotor, high precision ball screw mandrel is connected with connecting rod one end, the connecting rod other end is connected with print job platform, transparent Work container is fixed on base top and this transparent Work container under print job platform by support, in transparent Work container, there are the photosensitive resin of liquid and the photosensitive resin of solid, the photosensitive resin of this solid adheres to transparent Work container bottom, in shell, be provided with digital projection device and this digital projector is located at base upside, in base, be provided with circuit control module, chassis outer side is provided with touch-screen, power switch, circuit control module is connected with power switch with touch-screen respectively by data wire.
Preferably, described digital projection device comprises a digital projector that is vertically fixed on base upside.
Preferably, described digital projection device comprises that a level is fixed on digital projector and the level crossing of base upside.
Preferably, described level crossing is 45 ° and is placed in base upside.
Preferably, described digital projection device comprises ultraviolet source and condenser lens, and condenser lens is located at ultraviolet source upside, and condenser lens upside is provided with two Fresnel Lenses.
Beneficial effect of the present invention is:
1. in resin storage tank, fill with liquid photosensitive resin, it is meeting rapid curing under the irradiation of UV laser beam, when forming process starts, the height of liftable workbench in the next cross section of liquid level bed thickness, laser beam after focusing, under the control of computer, according to the requirement of cross section profile, along liquid level, scan, make to be scanned the resin solidification in region, thereby obtain the resin flake of this cross section profile, then, the height of workbench decline one deck thin slice, with the resin flake solidifying, just by the new liquid resin of one deck, covered, so that carrying out second layer laser scanning solidifies, new curing one deck jail is bonded on front one deck, so repeat endlessly, until whole formed product is complete, use photosensitive resin moulding, formed precision is higher, printing effect is better,
2. the high precision ball screw mandrel other end is connected with servomotor, the control accuracy of servomotor is guaranteed by the rotary encoder of motor shaft rear end, control accuracy is more accurate, servomotor running is very steady, even if also there will not be oscillation phenomenon when low speed, servo-drive system has resonance inhibit feature, can contain mechanical rigidity not enough, and internal system has frequency resolution function, can detect mechanical resonance point, be convenient to system adjustment, servomotor is constant moment of force output, in its rated speed, can export nominal torque, it more than rated speed, is constant power output, AC servo motor has stronger overload capacity, saved the energy, the solid 3D printer of high-precision laser light adopts servomotor, make printer work more steady, reduced energy consumption,
3. ball wire pole socket one side is provided with line slideway, high precision ball screw mandrel one end is connected with ball wire pole socket, the high precision ball screw mandrel other end is connected with servomotor, ball leading screw driving drives ball screw to rotate by motor by shaft coupling or synchronous pulley, and then the slide block that promotes to be fixed on line slideway moves forward and backward, and it is high that ball screw has positioning precision, frictional force is little, rigidity is high, and the strong feature of load capacity makes printer formed precision higher;
4. circuit control module is connected with power switch with touch-screen respectively by data wire, and circuit control module is interior and write control software, and Based Intelligent Control printer, has improved control accuracy and treatment effeciency, has reduced cost;
5. digital projection device comprises that a level is fixed on digital projector and the level crossing of base upside, and digital projector level is fixed, and makes the structure of printer compacter, and size is less, saves user's space, convenient transportation and placement;
6. digital projection device comprises ultraviolet source and condenser lens, and condenser lens is located at ultraviolet source upside, realizes principle simpler, and cost performance is higher.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention 1;
Fig. 2 is the overall structure schematic diagram of the embodiment of the present invention 2;
Fig. 3 is the overall structure schematic diagram of the embodiment of the present invention 3.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, structure of the present invention is described further.
Embodiment 1
As shown in Figure 1, the solid 3D printer of a kind of high-precision laser light comprises shell 1 and base 22, shell 1 is connected with base 2 upsides, described shell 1 inner side is provided with ball wire pole socket 3, ball wire pole socket 3 one sides are provided with line slideway 6, ball screw 4 one end are connected with ball wire pole socket 3, ball screw 4 other ends are connected with servomotor 5, ball screw 4 is connected with connecting rod 7 one end, connecting rod 7 other ends are connected with print job platform 8, transparent Work container 10 is fixed on base 2 tops and this transparent Work container 10 under print job platform 8 by support, in transparent Work container 10, there are the photosensitive resin of liquid and the photosensitive resin of solid 9, the photosensitive resin 9 of this solid adheres to transparent Work container bottom 10, in shell 1, be provided with digital projection device and this digital projection device and be located at base 2 upsides, in base 2, be provided with circuit control module 14, base 2 outsides are provided with touch-screen 12, power switch 13, circuit control module 14 is connected with power switch 13 with touch-screen 12 respectively by data wire, digital projection device comprises a digital projector 11 that is vertically fixed on base 2 upsides.
The solid 3D printer of a kind of high-precision laser light comprises circuit control module 14, digital projector 11, Z axis servomotor 5, print job platform 8, fills with the transparent Work container 10 of liquid light maleate resin, and servomotor 5 is by driving ball screw 4 to coordinate line slideway 6 to drive print job platform 8 to move up and down work.The course of work and principle are as follows, first user will fill the photosensitive resin of liquid in transparent Work container 10, then turn on the power switch 13, allow this device start, user uses computer or handheld mobile device this equipment that can be wireless, on touch-screen 12, can show successful connection information and status information of equipment, user passes to circuit control module 14 after the 3D model data file that needs printing shaping has been adjusted in the software of computer terminal, this modular program by the 3D model file of receiving according to the height of 0.03mm and add the black white image that upper support data change into two dimensional surface, after converting, print procedure starts, first circuit control module 14 control servomotors 5 drive print job platforms 8 to drop to the position that distance fills with the transparent Work container 10 bottom 0.03mm of liquid light maleate resin 9, circuit control module 14 is passed to digital projector 11 by the black white image of ground floor, digital projector 11 shows that the black white image profile of ground floor continues regular time, photosensitive resin 9 in transparent Work container 10 is bonded at the bottom of print job platform 8 under the prolonged exposure of ground floor graph outline (black is emitting ultraviolet light not) ultraviolet light from liquid curing becomes solid, circuit control module 14 is again controlled servomotor 5 and is driven the certain height of print job platform 8 rising, allow liquid light maleate resin 9 bottom of fully refluxing, print job platform 8 is the height and position of the transparent Work container 10 bottom 0.06mm of dropping distance again, circuit control module 14 second layers are printed and are started, so move in circles, each print job platform 8 improves the height of 0.03mm, until whole formed product is complete.Circuit control module 14 is controlled print job platform 8 and is risen to maximum height.User can open shell 1, and print job platform 8 is taken off from machine, printing is completed to product and from print job platform 8, take off, water rinses, and through simply cleaning, whole print procedure has just completed, user has obtained 0.03mm precision, the 3D printout material object that surface is very smooth.
As shown in Figure 2, the solid 3D printer of a kind of high-precision laser light comprises shell 1 and base 22, shell 1 is connected with base 2 upsides, described shell 1 inner side is provided with ball wire pole socket 3, ball wire pole socket 3 one sides are provided with line slideway 6, ball screw 4 one end are connected with ball wire pole socket 3, ball screw 4 other ends are connected with servomotor 5, ball screw 4 is connected with connecting rod 7 one end, connecting rod 7 other ends are connected with print job platform 8, transparent Work container 10 is fixed on base 2 tops and this transparent Work container 10 under print job platform 8 by support, in transparent Work container 10, there are the photosensitive resin of liquid and the photosensitive resin of solid 9, the photosensitive resin 9 of this solid adheres to transparent Work container bottom 10, in shell 1, be provided with digital projection device and this digital projection device and be located at base 2 upsides, in base 2, be provided with circuit control module 14, base 2 outsides are provided with touch-screen 12, power switch 13, circuit control module 14 is connected with power switch 13 with touch-screen 12 respectively by data wire, the level that comprises digital projection device is fixed on digital projector 11 and the level crossing 15 of base 2 upsides, level crossing 15 is 45 ° and is placed in base 2 upsides.
As shown in Figure 3, the solid 3D printer of a kind of high-precision laser light comprises shell 1 and base 22, shell 1 is connected with base 2 upsides, described shell 1 inner side is provided with ball wire pole socket 3, ball wire pole socket 3 one sides are provided with line slideway 6, ball screw 4 one end are connected with ball wire pole socket 3, ball screw 4 other ends are connected with servomotor 5, ball screw 4 is connected with connecting rod 7 one end, connecting rod 7 other ends are connected with print job platform 8, transparent Work container 10 is fixed on base 2 tops and this transparent Work container 10 under print job platform 8 by support, in transparent Work container 10, there are the photosensitive resin of liquid and the photosensitive resin of solid 9, the photosensitive resin 9 of this solid adheres to transparent Work container bottom 10, in shell 1, be provided with digital projection device and this digital projection device and be located at base 2 upsides, in base 2, be provided with circuit control module 14, base 2 outsides are provided with touch-screen 12, power switch 13, circuit control module 14 is connected with power switch 13 with touch-screen 12 respectively by data wire, digital projection device comprises ultraviolet source 16 and condenser lens 15, condenser lens 15 is located at ultraviolet source 16 upsides, condenser lens 15 upsides are provided with two Fresnel Lenses 17.
Finally, it should be pointed out that above embodiment is only the more representational example of the present invention.Obviously, the invention is not restricted to above-described embodiment, can also have many distortion.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all should think and belong to protection scope of the present invention.
Claims (5)
1. a high-precision laser light is consolidated 3D printer, it is characterized in that: comprise shell and base, shell is connected with base upside, described shell inner side is provided with ball wire pole socket, ball wire pole socket one side is provided with line slideway, ball screw one end is connected with ball wire pole socket, the ball screw other end is connected with servomotor, ball screw is connected with connecting rod one end, the connecting rod other end is connected with print job platform, transparent Work container is fixed on base top and this transparent Work container under print job platform by support, in transparent Work container, there are the photosensitive resin of liquid and the photosensitive resin of solid, the photosensitive resin of this solid adheres to transparent Work container bottom, in shell, be provided with digital projection device and this digital projection device is located at base upside, in base, be provided with circuit control module, chassis outer side is provided with touch-screen, power switch, circuit control module is connected with power switch with touch-screen respectively by data wire.
2. the solid 3D printer of high-precision laser light according to claim 1, is characterized in that: described digital projection device comprises a digital projector that is vertically fixed on base upside.
3. the solid 3D printer of high-precision laser light according to claim 1, is characterized in that: described digital projection device comprises that a level is fixed on digital projector and the level crossing of base upside.
4. the solid 3D printer of high-precision laser light according to claim 3, is characterized in that: described level crossing is 45 ° and is placed in base upside.
5. the solid 3D printer of high-precision laser light according to claim 1, is characterized in that: described digital projection device comprises ultraviolet source and condenser lens, and condenser lens is located at ultraviolet source upside, and condenser lens upside is provided with two Fresnel Lenses.
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Application publication date: 20140122 |