CN217315878U - Device for laser rapid forming of multiple or multiple entities - Google Patents
Device for laser rapid forming of multiple or multiple entities Download PDFInfo
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- CN217315878U CN217315878U CN202220922320.2U CN202220922320U CN217315878U CN 217315878 U CN217315878 U CN 217315878U CN 202220922320 U CN202220922320 U CN 202220922320U CN 217315878 U CN217315878 U CN 217315878U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model provides a device for quickly forming a plurality of or a plurality of entities by laser, which belongs to the technical field of laser quick forming devices and comprises a base, wherein at least two forming cylinders are arranged on the base, the device also comprises a laser, a laser beam splitter and laser scanning components, the number of the laser scanning components is the same as that of the forming cylinders, the laser beam splitter is arranged on a light beam path of the laser, laser beams split by the laser beam splitter are respectively connected with the corresponding laser scanning components, and the laser scanning components are respectively arranged above the corresponding forming cylinders; utilize the utility model discloses carry out the entity and add man-hour, the utility model discloses can carry out the structure of the same entity simultaneously in a plurality of shaping jars to and can carry out the structure of different materials, the entity of kind simultaneously in the shaping jar of difference, thereby produce a plurality of or multiple entity very fast, with the application efficiency who improves work piece machining efficiency and laser instrument.
Description
Technical Field
The utility model belongs to the technical field of laser rapid prototyping device, concretely relates to device of a plurality of or multiple entity of laser rapid prototyping.
Background
Laser Rapid Prototyping (LRP) is a brand new manufacturing technology that integrates advanced technologies such as CAD, CAM, CNC, Laser, precision servo drive, and new materials. Compared with the traditional manufacturing method, the laser rapid prototyping technology has the advantages of high copying performance and interchangeability of the prototype, no relation between the manufacturing process and the geometric shape of the manufactured prototype, short processing period, low cost and the like.
The principle of the laser rapid prototyping technology is that a three-dimensional solid model is generated by computer software, then the three-dimensional solid model is layered by layering software, a laser beam is controlled to scan powder in a region to be modeled through two-dimensional data drive of the section of each thin layer, the powder is rapidly melted under the action of high-energy laser, and then the powder is rapidly solidified after heat dissipation and cooling, so that the thin layers with required shapes are processed and are accumulated layer by layer to form the solid model.
However, the existing laser rapid forming device has the defects of long sintering time, slow forming process, low industrial processing efficiency and the like, and the longest time can reach 100 hours when processing some processed objects with larger sizes. In order to improve the processing efficiency of the laser rapid prototyping device, the existing laser rapid prototyping device generally can simultaneously set a plurality of stations on the base for synchronous processing, but the existing multi-station laser rapid prototyping device can set a laser and a set of corresponding light path system on each station for realizing multi-station processing, so that the cost of the whole device is increased, and the structure of the whole device becomes complicated.
Disclosure of Invention
The utility model provides a technical problem provide an only use one or a small amount of laser instrument can a plurality of or multiple entity's of laser rapid prototyping device simultaneously to improve the application efficiency of work piece machining efficiency and laser instrument.
In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a device of a plurality of or multiple entity of laser rapid prototyping, its includes the base, be provided with two at least shaping jars on the base, still include laser instrument, laser beam splitter and laser scanning subassembly, the quantity of laser scanning subassembly is the same with the quantity of shaping jar, laser beam splitter sets up on the beam path of laser instrument, the laser beam that laser beam splitter was divided the beam connects corresponding laser scanning subassembly respectively, the laser scanning subassembly sets up the top at the shaping jar that corresponds respectively. When the utility model is used for entity processing, because the base of the utility model is provided with a plurality of forming cylinders, the utility model can construct the same entity in a plurality of forming cylinders simultaneously, and simultaneously, the utility model can also construct entities of different materials and types in different forming cylinders simultaneously, thereby producing a plurality of or a plurality of entities very quickly and improving economic benefit; meanwhile, the utility model can respectively introduce and apply the laser beams emitted by the laser into different molding spaces through the laser beam splitter, and selectively sinter the powder in the corresponding molding cylinder, thereby greatly improving the application efficiency of the laser; and in the sintering process, the laser beam can be uniformly sintered on the surface of the powder layer in a pulse mode or a continuous mode through an external acousto-optic modulator, so that very uniform sintered layers are generated, and the laser power of each sintered layer can be increased or the working mode can be changed according to the target requirement so as to adjust the gradient distribution of the horizontal characteristic and the vertical characteristic of the generated entity.
Further, all the forming cylinders are arranged on the base in a circumferential array; the scraper component comprises an annular scraper, a connecting rod is arranged at one end of the annular scraper, a rotary driving component is connected to the connecting rod in a transmission mode, the rotary driving component can drive the annular scraper and the connecting rod to rotate horizontally around the array central point of the forming cylinder, and the annular scraper can be located above the corresponding forming cylinder. Like this in the entity course of working, the utility model discloses can carry out the circumference through horizontal rotation's annular scraper to the upper surface of each shaping jar and scrape the action of going to scrape the in-process at the circumference of annular scraper and send the powder and spread the powder, scrape the action of leveling to the shaping jar that corresponds, ensure simultaneously that the removal of powder between different shaping jars is all-round closed loop and removes, and then avoid the powder extravagant.
Furthermore, the annular scraper is of a cylindrical structure with an opening at the lower end and a sealed upper end, and a cutting edge is arranged at the lower end of the annular scraper and is used for circumferentially scraping the upper surface of the forming cylinder through the cutting edge at the lower end of the annular scraper.
Further, still include and send the powder subassembly, send the powder subassembly to set up on the base to provide the required powder in the laser rapid prototyping course of working through sending the powder subassembly.
Furthermore, the powder feeding assembly comprises a powder feeding cylinder, the powder feeding cylinder is arranged on the base, the annular scraper can be located above the powder feeding cylinder, and therefore in the rotating and moving process of the annular scraper, powder in the powder feeding cylinder can be moved into the forming cylinder through the cutting edge of the annular scraper.
Further, the powder feeding assembly comprises a powder feeder, a discharge hole of the powder feeder is communicated with an inner cavity of the annular scraper through a powder conveying pipe, and powder is conveyed into the annular scraper through the powder feeder and the powder conveying pipe.
Furthermore, vertical sliding connection has the powder carrier plate of shop in the shaping jar, spread the powder carrier plate on the transmission be connected with be used for driving spread the powder drive assembly that the powder carrier plate reciprocated to through spreading the height of powder drive assembly adjustment shop powder carrier plate, with the height that guarantees to spread the height of powder carrier plate and spread the powder carrier plate on highly satisfying the processing requirement of powder.
The device further comprises a displacement sensor, wherein the displacement sensor is used for measuring the distance between the powder laying carrier plate and the annular scraper or the distance between the upper surface of the powder laid on the powder laying carrier plate and the annular scraper; the displacement sensor is in communication connection with a height adjusting controller, and the height adjusting controller can control the powder spreading driving assembly to adjust the height of the powder spreading carrier plate according to an output signal of the displacement sensor; like this when spreading the powder support plate and descend certain distance H along the shaping jar under the control of spreading powder drive assembly to when making to spread powder support plate upper surface and the theoretical vertical distance H that has between the annular scraper lower extreme cutting edge, the utility model discloses can rotate annular scraper to spreading powder support plate top earlier, vertical distance H's actual numerical value this moment is tested to rethread displacement sensor, and feed back actual numerical value and theoretical error value between numerical value to the industrial computer of superordinate, thereby this distance of fine adjustment ensures that final theoretical vertical distance H equals H, and this vertical distance H is the powder layer individual layer thickness of spreading of preset.
Furthermore, the number of the scraper assemblies is at least two, all the scraper assemblies are arranged on the base in a circumferential array mode, and the array center points of the scraper assemblies are coincided with the array center points of the forming cylinders, so that the powder feeding, powder spreading and leveling actions can be carried out on the forming cylinders through the scraper assemblies simultaneously, and the working efficiency is improved; simultaneously the utility model discloses can also carry out laying of different powders through selecting the different powder subassemblies of scraping in the laser forming process to the gradient distribution of the produced entity horizontal characteristic of adjustment, vertical characteristic.
Furthermore, the device also comprises a protective gas treatment chamber, wherein the base, the forming cylinder and the scraper assembly are all positioned in the protective gas treatment chamber, the inside of the protective gas treatment chamber is firstly pumped to vacuum before processing, and then process protective gas is filled into the protective gas treatment chamber.
According to the technical scheme, the utility model has the advantages of it is following: firstly, the utility model can construct the same entity in a plurality of forming cylinders simultaneously, and simultaneously, the utility model can construct entities of different materials and types in different forming cylinders simultaneously, thereby producing a plurality of or a plurality of entities very quickly and improving economic benefit; meanwhile, the utility model can respectively introduce and apply the laser beams emitted by the laser into different molding spaces through the laser beam splitter, and selectively sinter the powder in the corresponding molding cylinder, thereby greatly improving the application efficiency of the laser; in the sintering process, laser beams can be uniformly sintered on the surface of a powder layer in a pulse mode or a continuous mode through an external acousto-optic modulator, so that very uniform sintered layers are generated, and the laser power of each sintered layer can be increased or the working mode can be changed according to the target requirement so as to adjust the gradient distribution of the horizontal characteristic and the vertical characteristic of the generated entity; secondly, the utility model discloses can also ensure through the annular scraper that the removal of powder between different shaping jars is all-round closed loop and removes, and then avoid the powder extravagant.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description 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 that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of the present invention (base and shielding gas treatment chamber not shown).
Fig. 2 is a schematic diagram of the position relationship between the forming cylinder and the scraper assembly in the present invention.
In the figure: 1. the device comprises a forming cylinder, 2, a powder laying carrier plate, 3, a structural entity, 4, powder, 5, a laser, 6, a laser beam splitter, 7, a laser scanning assembly, 8, a scraper assembly, 9 and a rotary driving assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in the figure, the utility model provides a device of a plurality of or multiple entity of laser rapid prototyping, it includes the protective gas process chamber, be provided with the base in the protective gas process chamber, be provided with two at least shaping jars 1 on the base, and all shaping jars 1 are the circumference array and arrange on the base. Vertical sliding connection has shop powder support plate 2 in the shaping jar 1, spread powder support plate 2 and go up the transmission connection and be used for the drive to spread the powder drive assembly that spreads that the powder support plate reciprocated, just spread the powder drive assembly and can order about under the control of host computer and spread powder support plate 2 and reciprocate with the precision that is less than 10 mu m along the inner wall of shaping jar 1 to the height of powder support plate 2 is spread in the adjustment, and the height that guarantees to spread powder support plate 2 and spread the height-meeting processing requirement of powder that spreads on the powder support plate 2.
Above the forming cylinder 1, the utility model discloses still be provided with laser instrument 5, laser beam splitter 6 and laser scanning subassembly 7. The number of the lasers 5 is preferably one, the number of the laser scanning assemblies 7 is the same as that of the forming cylinders 1, the laser scanning assemblies 7 are respectively arranged above the corresponding forming cylinders 1 according to the corresponding fixed focal lengths, the laser beam splitter 6 is arranged on a beam path of the lasers 5, laser beams emitted by the lasers 5 are divided into a number of beams which is matched with that of the forming cylinders 1 through the laser beam splitter 6, each laser beam is modulated through an external sound-light modulator and then connected with the corresponding laser scanning assembly 7, and powder paved on the powder paving carrier plate 2 in the corresponding forming cylinder 1 is selectively sintered under the guidance of the corresponding laser scanning assembly 7, so that the powder on the layers can be sintered with each other and can be connected with a powder layer on a lower layer.
In addition, still be provided with the scraper subassembly 8 that is used for sending powder, shop's powder and strickle off the processing to shop's powder support plate 2 on the base, moreover the quantity of scraper subassembly 8 both can be one, also can be a plurality of, and when the quantity of scraper subassembly 8 is two at least, all scraper subassemblies 8 are arranged on the base in the form of circumference array, and make the array central point of scraper subassembly 8 coincide with the array central point of forming cylinder 1. Further, scraper subassembly 8 includes annular scraper, annular scraper is lower extreme opening, the sealed tubular structure of upper end, just the lower extreme of annular scraper is provided with the cutting edge, the one end of annular scraper is provided with the connecting rod, the transmission is connected with rotation driving subassembly 9 on the connecting rod, rotation driving subassembly 9 can drive annular scraper and connecting rod and carry out horizontal rotation motion around the array central point of shaping jar 1, and the circumference is scraped and is moved, and makes annular scraper can be located the top that corresponds shaping jar 1 and carry out the closed loop between arbitrary two shaping jar 1 and remove to ensure at the rotatory in-process of annular scraper, its can evenly apply the powder layer of certain thickness at the shop's powder support plate 2 surfaces that correspond.
The annular scraper is also connected with a powder feeding component used for conveying powder into the inner cavity of the annular scraper, and the powder feeding component can be a powder feeding cylinder directly arranged on the base, a powder storage hopper, a molded hanging suction type powder feeder or a spiral powder feeder and the like; the powder fed by the powder feeding assembly is made of ceramic, metal, alloy or composite material.
In addition, in order to guarantee the motion precision of spreading powder support plate 2, the utility model discloses still be provided with and be used for measuring the displacement sensor who spreads distance between powder support plate 2 and the annular scraper or be used for measuring the distance between the upper surface of spreading the powder on powder support plate 2 and the annular scraper, displacement sensor's measurement accuracy is less than 1 mu m, just communication connection has height adjustment controller on the displacement sensor, height adjustment controller can spread the height that powder drive assembly adjusted and spread powder support plate 2 according to displacement sensor's output signal control to finally reach the purpose of adjusting the distance between powder support plate 2 and the annular scraper of spreading.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The device for quickly forming a plurality of or a plurality of entities by laser is characterized by comprising a base, wherein a scraper component and at least two forming cylinders are arranged on the base; the laser beam splitting device is characterized by further comprising lasers, laser beam splitters and laser scanning assemblies, the number of the laser scanning assemblies is the same as that of the forming cylinders, the laser beam splitters are arranged on light beam paths of the lasers, laser beams split by the laser beam splitters are respectively connected with the corresponding laser scanning assemblies, and the laser scanning assemblies are respectively arranged above the corresponding forming cylinders.
2. The apparatus for laser rapid prototyping a plurality of or a plurality of entities as set forth in claim 1 wherein all of the prototyping cylinders are arranged in a circumferential array on the base; the scraper component comprises an annular scraper, one end of the annular scraper is provided with a connecting rod, the connecting rod is connected with a rotary driving component in a transmission mode, the rotary driving component can drive the annular scraper and the connecting rod to rotate horizontally around the central point of the array of the forming cylinder, and the annular scraper can be located above the corresponding forming cylinder.
3. The apparatus for laser rapid prototyping of one or more solid objects as set forth in claim 2, wherein the annular scraper is a cylindrical structure with an open lower end and a sealed upper end, and the lower end of the annular scraper is provided with a cutting edge.
4. The apparatus for laser rapid prototyping a plurality of or a plurality of entities of claim 3 further comprising a powder feed assembly, said powder feed assembly being disposed on the base.
5. The apparatus for laser rapid prototyping a plurality of or a plurality of entities as set forth in claim 4 wherein said powder feed assembly comprises a powder feed cylinder disposed on a base, said annular blade being positionable above said powder feed cylinder.
6. The apparatus for laser rapid prototyping of one or more objects as set forth in claim 4, wherein said powder feeder assembly comprises a powder feeder, the discharge port of which communicates with the inner cavity of the annular scraper via a powder delivery tube.
7. The device for laser rapid prototyping of a plurality of entities or a plurality of entities as set forth in any one of claims 1 to 6, wherein a powder laying carrier plate is vertically and slidably connected in the prototyping cylinder, and a powder laying driving assembly for driving the powder laying carrier plate to move up and down is in transmission connection with the powder laying carrier plate.
8. The apparatus for laser rapid prototyping of one or more objects as set forth in claim 7 further comprising a displacement sensor for measuring the distance between the powder-laying carrier plate and the annular scraper or for measuring the distance between the upper surface of the powder laid on the powder-laying carrier plate and the annular scraper; the last communication connection of displacement sensor has height adjustment controller, height adjustment controller can spread the height of powder drive assembly adjustment shop powder support plate according to displacement sensor's output signal control.
9. The apparatus for laser rapid prototyping a plurality of or a plurality of entities of any of claims 1-6 wherein the number of the scraper assemblies is at least two, all of the scraper assemblies are arranged on the base in a circumferential array, and the array center points of the scraper assemblies coincide with the array center points of the prototyping cylinder.
10. The apparatus for laser rapid prototyping a plurality of or a plurality of entities of any one of claims 1-6 further comprising a shielding gas processing chamber, wherein the base, the prototyping cylinder, and the scraper assembly are all located within the shielding gas processing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220922320.2U CN217315878U (en) | 2022-04-21 | 2022-04-21 | Device for laser rapid forming of multiple or multiple entities |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220922320.2U CN217315878U (en) | 2022-04-21 | 2022-04-21 | Device for laser rapid forming of multiple or multiple entities |
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| CN217315878U true CN217315878U (en) | 2022-08-30 |
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| CN202220922320.2U Active CN217315878U (en) | 2022-04-21 | 2022-04-21 | Device for laser rapid forming of multiple or multiple entities |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117123802A (en) * | 2023-09-01 | 2023-11-28 | 江苏大学 | Multi-forming cylinder uninterrupted printing laser selective melting equipment with variable light paths |
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2022
- 2022-04-21 CN CN202220922320.2U patent/CN217315878U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117123802A (en) * | 2023-09-01 | 2023-11-28 | 江苏大学 | Multi-forming cylinder uninterrupted printing laser selective melting equipment with variable light paths |
| CN117123802B (en) * | 2023-09-01 | 2024-04-09 | 江苏大学 | Multi-forming cylinder uninterrupted printing laser selective melting equipment with variable light paths |
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