CN203366361U - Equipment for manufacturing FRID tag-inlaid metal part by SLM - Google Patents
Equipment for manufacturing FRID tag-inlaid metal part by SLM Download PDFInfo
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- CN203366361U CN203366361U CN2013204602595U CN201320460259U CN203366361U CN 203366361 U CN203366361 U CN 203366361U CN 2013204602595 U CN2013204602595 U CN 2013204602595U CN 201320460259 U CN201320460259 U CN 201320460259U CN 203366361 U CN203366361 U CN 203366361U
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses equipment for manufacturing a FRID tag-inlaid metal part by SLM and belongs to the field of laser melting. By the adoption of the equipment, mutual independence problem of selective laser melting and radio-frequency signal identification is solved. The technical point is as follows: the equipment comprises a light beam focusing system, a near-wavelength coaxial vision positioning system, a gas shielded system, a real-time monitor and a tag inlaying system, etc.. To inlay a RFID tag in a metal part requires a high degree on a manufacturing method, and one-step molding cannot be realized by a traditional processing method. With the combination of SLM and radiofrequency signal identification in the patent, the restriction that one-step molding cannot be realized by traditional processing is overcome. According to the patent, the distance between the tag and metal is reasonably controlled to eliminate heat effect, and the problem is overcome by adhering an anti-metallic film to the tag. The manufacturing difficulty is overcome, and the RFID tag-inlaid metal part is manufactured successfully. The equipment is mainly applied in the national defense industry and also can be used in industries such as workpiece tracking, positioning and the like in a special environment.
Description
Technical field
The utility model relates to laser special processing process and equipment, relates in particular to SLM and manufactures the equipment with embedded FRID label metal parts.
Background technology
Radiofrequency signal recognition technology (Radio Frequency IDentification, RFID) be a kind of Novel Communication technology, can identify specific objective and read and write related data by radio signals, and without setting up machinery between recognition system and specific objective or optics contacts.The technology such as commonly used have low frequency (125k～134.2K), high frequency (13.56Mhz), a ultrahigh frequency, passive.Rfid interrogator also divides portable with fixed, and RFID technology application at present is very wide.Nowadays the RFID label can reach 1/50 grain of rice size.
A set of complete rfid system, by reader and electronic tag (RFID label), namely so-called transponder and three part institutes of application software system are formed, its principle of work is that reader is launched the radio wave energy of a characteristic frequency to transponder, in order to drive transponder circuit, inner data are sent, now reader just sequentially receives unscrambling data, gives application program and does corresponding processing.
And radiofrequency signal recognition technology principle of work uncomplicated: after label enters magnetic field, receive the radiofrequency signal that plug-in reader sends, the energy that relies on induction current to obtain sends out product information (the Passive Tag be stored in chip, passive label or passive label), perhaps by label, initiatively sent signal (the Active Tag of a certain frequency, active label or active tag), after plug-in reader reading information decoding, deliver to CIS and carry out the relevant data processing.
The most important advantage of radiofrequency signal recognition system is contactless identification, and it can penetrate the rugged surroundings label reading that snow, mist, ice, coating, dust and dirt and bar code can't be used, and reading rate is exceedingly fast, in most cases less than 100 milliseconds.
The subject matter of restriction radiofrequency signal recognition system development is incompatible standard.What the leading firm of radio-frequency recognition system provided is all dedicated system, causes different application and different industries to adopt frequency and the consensus standard of different vendor, and this confusion and the situation of setting up a separatist regime by force of arms have restricted the growth of whole radio-frequency (RF) identification industry.The problem that another one is restricting its development is that radiofrequency signal is very responsive to metal, causes current this RFID label to have on the object of metal surface (as the steel shelf, container etc.) normal operation, and can only be used in nonmetallic surface (as plastics, glass, timber etc.).Applying in radio frequency identification logistic industry the most widely mostly is the metal environment, so this shortcoming of metal sensitivity has limited its application at logistic industry greatly.
Nowadays the RFID technology has been widely used in, in all trades and professions, mainly comprising: in logistics and supplies management, the manufacturing and assembling, mail/fast freight parcel processing, document tracking/library management, animal identification sign, motion timing, access control/electronic entrance ticket, road automatic charging, all-purpose card, storage, plastic pallet is medium.
Precinct laser fusion (SLM) is a kind of current comparatively advanced rapid laser-shaping technique, its ultimate principle is first to design on computers the three-dimensional entity model of part, then by special software, this three-dimensional model is carried out to slicing delamination, obtain the outline data in each cross section, by these data importing rapid forming equipments, equipment will be controlled the metal powder material that laser beam optionally melts each layer according to these outline datas, progressively be stacked into the 3-dimensional metal part.
SLM manufactures the advantage of personalized part
(1) personalization: be applicable to the part of various complicated shapes, especially be applicable to Nonlinear Curved or personalized workpiece that there is complicated abnormal shape structure (as cavity) inside, can't manufactures by classic method;
(2) manufacture fast: directly make the terminal metal part, save the middle transition link;
(3) precision is high: use the laser instrument with high power density, the very little laser beam irradiation metal powder with hot spot, make the personalized metal parts processed have very high dimensional accuracy (reaching 0.1mm) and good surfaceness (Ra30-50 μ m);
(4) density is high: the entity that the produced part in deposite metal has metallurgical binding in constituency, and relative density approaches 100%, and mechanical property even surpasses cast member;
(5) material category is many: because laser spot diameter is very little, therefore can melt with lower power dystectic metal, make with the metal powder of single component and come finished parts to become possibility, and the metal powder kind that can Gong select also be expanded.
Although laser selective melting technology and radiofrequency signal recognition technology extensively are used in every profession and trade already, also do not have at present related application that these two technology are combined.
Summary of the invention
The purpose of this utility model is exactly for precinct laser fusion and radiofrequency signal identification being combined, providing SLM to manufacture the equipment with embedded FRID label metal parts.
The utility model is achieved through the following technical solutions:
1, SLM manufactures the equipment with embedded FRID label metal parts, comprises light beam focusing system, nearly wavelength coaxial vision positioning system, label embedded system, powder paving system, gas protection system;
Described light beam focusing system, comprise light path connects successively fiber laser, beam expanding lens, scanning galvanometer and F-θ compound lens;
Nearly wavelength coaxial vision positioning system, comprise coated reflection eyeglass, industrial CCD and the lighting device for throwing light on to metal parts to be processed; Described coated reflection eyeglass is arranged in the light path between beam expanding lens and scanning galvanometer; Described industrial CCD is arranged on the top of coated reflection eyeglass;
Described powder paving system, comprise moulding cylinder, paving powder scraper plate, powder cylinder, be arranged on the lifting piston of moulding cylinder and powder cylinder bottom section, the lifting piston connection control system;
Described gas protection system, comprise the sealing moulding chamber, be placed in the indoor oxygen content real-time monitor of sealing moulding, be connected to the protection device of air of sealing moulding chamber one side, and the powder purification apparatus that is connected to sealing moulding chamber opposite side;
Described label embedded system is arranged on the sealing moulding chamber interior, and it comprises mechanical drive arm, tag read-write equipment and is preset at the FRID label of mechanical drive arm end, described tag read-write equipment connection control system;
Described gas protection system, fiber laser, industrial CCD are connected with control system respectively;
Described label embedded system and composition of the control system radiofrequency signal recognition detection system.
Adopt the said equipment processing to there is the direct manufacture method of embedded FRID label metal parts, comprise the steps:
The first step: preparatory stage
Design metal parts 3D moulding to be processed with three-dimensional software, in order to prevent that the FRID label is by metallic shield, metal parts need to design hole and the hole of falling the powder;
Then utilize magics software to carry out putting position, add and support and sectioning, then utilize path planning system to determine the scanning pattern of every one deck; Finally, for different metal powder materials, select suitable substrate, substrate is arranged in moulding cylinder; Select the FRID label, anti-metal film on its surface label, determine and be embedded into the position in metal parts;
Second step: process segment
Adopt the good metal parts of SLM method fabrication design; Use paving powder scraper plate, metal powder material is sprawled into to the thin layer of micron to micron thickness; Control system is according to the scanning pattern gated sweep galvanometer deflection set, and scanning galvanometer guides laser beam to move on the metal powder material thin layer, and fusion of metal powder is formed to metal solid; After having scanned the profile of one deck, proceed powder and lay;
Suspend processing when metal parts is worked into suitable position, the laser of lighting device emission after expanding, shine the metal parts surface; Laser after expanding is transmitted in industrial CCD through F-θ compound lens, scanning galvanometer and the coated reflection eyeglass that is 45° angle successively; Industrial CCD obtains the image of a frame metal parts upper surface, and this image becomes digital picture and sends in control system after quantification treatment, by control system, the image of picked-up is processed and characteristic quantity identification, orients the exact position that embeds the FRID label; Then control system manipulation mechanical drive arm is embedded into the FRID label in metal parts;
In order to prevent when the following process, paving powder scraper plate blows the FRID label off, when embedding the FRID label, should the FRID label be pushed into by the mechanical drive arm below the metal powder plane;
In order to make to suspend the bond strength of layer, again adding to adopt the laser power that strengthens fiber laser man-hour and reduce the sweep velocity measure increases laser energy density; Then cancel and suspending, until by whole metal parts machine-shaping; In whole process, adopt the oxygen content real-time monitor, the monitoring oxygen level is below 100ppm;
The 3rd step: aftertreatment and test phase
After process finishing, metal parts is cut down with the line cutting mode from substrate, remove the powder in metal parts; Finally whether normal by the radiofrequency signal recognition function of tag read-write equipment detection FRID label; The metal parts that will have again embedded FRID label is placed on tag read-write equipment, just is connected with control system and can be read and write the FRID label.
Metal parts, in the described whole machine-shaping process of above-mentioned second step, need to carry out inert gas shielding to the sealing moulding chamber, is full of argon gas or nitrogen;
In process, the protection device of air, to indoor nitrogen or the argon gas of constantly passing into of sealing moulding, is protected the metal parts of moulding.
The utility model has the following advantages compared with prior art:
1, this equipment adopts SLM method (precinct laser fusion) that the FRID label is embedded in metal parts, has overcome the limitation of traditional manufacturing technology.Disposable straight forming has the metal parts of embedded FRID label, has improved manufacture efficiency.
2, overcome interference and the shielding of metal pair FRID label, breakthrough has been applied in the radiofrequency signal recognition technology in metal parts.Metal parts with embedded FRID label can be applied in the scene of Aero-Space, circumstance complication.
By SLM, the RFID label is embedded in metal parts, its important meaning and application is arranged.In plastic products, the RFID chip can be removed, and be put in another part article, but in metal, chip but can't completely take out, and remove chip and just have to damage by force part.Just, due to this specific character, this method can be applied in some luxury goods or, in important mechanical component, to reach false proof, with identification, wait effect.
The important application of another one is exactly the RFID label to be embedded in temperature and expansion inductor, record the physical datas such as mechanical pressure that temperature data, workpiece may bear, and in real time data being sent to reader the inside, the observer can be in real time, accurately the situation of inside workpiece is understood and observed.This specific character makes this method to be applied to widely in national defense industry and Aero-Space and goes.Utilize special RFID label, can also make radio range greatly increase, therefore can be used in the industries such as tracking, location.
The accompanying drawing explanation
The structural representation that Fig. 1 is the utility model equipment.
The structural representation with embedded FRID label metal parts of Fig. 2 for adopting the said equipment to process.
Embodiment
Below in conjunction with specific embodiment, the utility model is more specifically described in detail.
Embodiment
As shown in Figure 1, 2.The utility model SLM manufactures the equipment with embedded FRID label metal parts, comprises light beam focusing system, nearly wavelength coaxial vision positioning system, label embedded system, powder paving system, gas protection system;
Described light beam focusing system, comprise light path connects successively fiber laser 1, beam expanding lens 3, scanning galvanometer 6 and F-θ compound lens 7;
Nearly wavelength coaxial vision positioning system, comprise coated reflection eyeglass 5, industrial CCD 4 and the lighting device 9 for throwing light on to metal parts 10 to be processed; Described coated reflection eyeglass 5 is arranged in the light path between beam expanding lens 3 and scanning galvanometer 6; Described industrial CCD 4 is arranged on the top of coated reflection eyeglass 5;
Described powder paving system, comprise moulding cylinder 15, paving powder scraper plate 13, powder cylinder 17, be arranged on the lifting piston 16 of moulding cylinder 15 and powder cylinder 17 bottoms, lifting piston 16 connection control system 21;
Described gas protection system, comprise the sealing moulding chamber, be placed in the indoor oxygen content real-time monitor 18 of sealing moulding, be connected to the protection device of air 8 of sealing moulding chamber one side, and the powder purification apparatus 19 that is connected to sealing moulding chamber opposite side;
Described label embedded system is arranged on the sealing moulding chamber interior, the FRID label 12 that it comprises mechanical drive arm 11, tag read-write equipment 20 and is preset at mechanical drive arm 11 ends, described tag read-write equipment 20 connection control system 21;
Described gas protection system, fiber laser 1, industrial CCD 4 are connected with control system 21 respectively;
Described label embedded system and control system 21 form radiofrequency signal recognition detection system.
The output power 200W of described fiber laser 1, beam quality factor M2<1.1, wavelength 1090nm, adopt continuous mode, and light beam 2 diameter self-energys present Gaussian distribution.
Described scanning galvanometer 6 comprises X, Y-axis eyeglass and motor, response speed<1 microsecond.
The optical plane that goes out of described lighting device is diagonal to moulding cylinder 15 processing planes.Adopt the laser illuminator close with the optical-fiber laser wavelength.Illumination light is the invisible laser of human eye, but industrial CCD 4 sensitive volumes can reach infrared band, therefore can play illuminating effect.
The TG2Z1816 that described industrial CCD 4 selects Japan to produce-FCS type CCD camera, its major advantage is that volume is little, highly sensitive and resolution is high.The key technical indexes is as follows: lens focus is 1.8～3.6mm; The camera lens image planes are 4.9mm * 3.7mm; Valid pixel is 510 (level) * 492 (vertically); Target range is 0.2～1m; Wherein coated reflection eyeglass 5 is 45° angle and puts, and realizes that by plated film 45 ° of illumination light are all-trans, 45 ° of full impregnateds of laser.
Suspending SLM processing, while embedding FRID label 12.The laser of lighting device 9 emissions after expanding, shine metal parts 10 surfaces.Laser illuminator is transmitted into industrial CCD 4 through F-θ compound lens 7, scanning galvanometer 6 and the coated reflection eyeglass 5 that is 45° angle successively.Industrial CCD 4 obtains the image of frame metal parts 10 upper surfaces, and this image becomes digital picture and sends in control system 21 after quantification treatment.Processed and characteristic quantity identification by 21 pairs of metal parts 10 images to picked-up of control system, orient the exact position that embeds the FRID label.Then control system 21 manipulation mechanical drive arms 11 are embedded into FRID label 12 in metal parts 10.
Adopt the said equipment processing to there is the direct manufacture method of embedded FRID label metal parts, can realize by following step:
The first step: preparatory stage
Design metal parts 3D moulding to be processed with three-dimensional software, in order to prevent that FRID label 12 is by metallic shield, metal parts need to design hole and the hole of falling the powder;
Then utilize magics software to carry out putting position, add and support and sectioning, then utilize path planning system to determine the scanning pattern of every one deck; Finally, for different metal powder materials, select suitable substrate, substrate is arranged in moulding cylinder 15; In moulding cylinder 15 installation processes, in order to guarantee the level of substrate, need to utilize level meter to carry out leveling.Select suitable FRID label 12, anti-metal film on its surface label, determine and be embedded into the position in metal parts 10;
Second step: process segment
Employing SLM(laser selective melting) metal parts 10 that the method fabrication design is good; Use the paving powder scraper plate 13 of precompressed compact form flexibility, metal powder material 14 is sprawled into to 20 microns thin layers to 60 micron thickness; Control system 21 is according to scanning pattern gated sweep galvanometer 6 deflections that set, and scanning galvanometer 6 guides laser beam 2 to move on the metal powder material thin layer, and metal powder 14 fusings are formed to metal solid; After having scanned the profile of one deck, proceed powder and lay;
Suspend processing when metal parts 10 is worked into suitable position, the laser of lighting device 9 emissions after expanding, shine metal parts 10 surfaces; Laser after expanding is transmitted in industrial CCD 4 through F-θ compound lens 7, scanning galvanometer 6 and the coated reflection eyeglass 5 that is 45° angle successively; Industrial CCD 4 obtains the image of frame metal parts 10 upper surfaces, this image becomes digital picture and sends in control system 21 after quantification treatment, the image of picked-up is processed and characteristic quantity identification by control system, oriented the exact position that embeds FRID label 12; Then control system 21 manipulation mechanical drive arms 11 are embedded into FRID label 12 in metal parts 10;
In order to eliminate the heat affecting of following process to label, the distance between reasonable abstract factory 12 and metal parts 10.In order to prevent when the following process, paving powder scraper plate 13 blows FRID label 12 off, when embedding FRID label 12, should FRID label 12 be pushed into by mechanical drive arm 11 below the metal powder plane; In order to guarantee to suspend the bond strength of layer, again adding to adopt the laser power that strengthens fiber laser 1 man-hour and reduce the sweep velocity measure increases laser energy density; Then cancel and suspending, until by whole metal parts 10 machine-shapings; In whole process, adopt oxygen content real-time monitor 18, the monitoring oxygen level is below 100ppm;
The 3rd step: aftertreatment and test phase
After process finishing, metal parts 10 is cut down with the line cutting mode from substrate, remove the powder in metal parts 10; Finally whether normal by the radiofrequency signal recognition function of tag read-write equipment 20 detection FRID labels 12; The metal parts 10 that will have again embedded FRID label 12 is placed on tag read-write equipment 20, with control system 21, just is connected and can be read and write FRID label 12.
In process, protection device of air 8, to indoor high pure nitrogen or the argon gas of constantly passing into of sealing moulding, is protected the metal parts 10 of moulding.In order to prevent oxidation, adopt oxygen concentration real-time monitor 18 monitoring oxygen level, guarantee that oxygen level is below 100ppm.In order to keep the pure of moulding room air, and prevent from metal powder occurring impurity, adopt powder purification apparatus 19 to absorb the flue dust produced in process.
As shown in Figure 2, metal parts 10 samples that there is embedded FRID label 12.Wherein between FRID label 12 and metal parts 10, certain spacing distance is arranged, prevent that FRID label 12 is subject to heat affecting in process.A hole of falling the powder 22 is arranged at metal parts 10 tops, for after process finishing, the metal powder of metal parts 10 inner chambers being poured out.Hole 23 is left in metal parts 10 bottoms, prevents that metal from shielding radiofrequency signal fully.This metal parts 10 is put on tag read-write equipment 20 and is detected, and the 12 signal read-writes of FRID label are fully normal.
Just can realize preferably the utility model as mentioned above.
Embodiment of the present utility model is not restricted to the described embodiments; other are any does not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitute, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (1)
1.SLM manufacture the equipment with embedded FRID label metal parts, it is characterized in that, comprise light beam focusing system, nearly wavelength coaxial vision positioning system, label embedded system, powder paving system, gas protection system;
Described light beam focusing system, comprise light path connects successively fiber laser, beam expanding lens, scanning galvanometer and F-θ compound lens;
Nearly wavelength coaxial vision positioning system, comprise coated reflection eyeglass, industrial CCD and the lighting device for throwing light on to metal parts to be processed; Described coated reflection eyeglass is arranged in the light path between beam expanding lens and scanning galvanometer; Described industrial CCD is arranged on the top of coated reflection eyeglass;
Described powder paving system, comprise moulding cylinder, paving powder scraper plate, powder cylinder, be arranged on the lifting piston of moulding cylinder and powder cylinder bottom section, the lifting piston connection control system;
Described gas protection system, comprise the sealing moulding chamber, be placed in the indoor oxygen content real-time monitor of sealing moulding, be connected to the protection device of air of sealing moulding chamber one side, and the powder purification apparatus that is connected to sealing moulding chamber opposite side;
Described label embedded system is arranged on the sealing moulding chamber interior, and it comprises mechanical drive arm, tag read-write equipment and is preset at the FRID label of mechanical drive arm end, described tag read-write equipment connection control system;
Described gas protection system, fiber laser, industrial CCD are connected with control system respectively;
Described label embedded system and composition of the control system radiofrequency signal recognition detection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204602595U CN203366361U (en) | 2013-07-30 | 2013-07-30 | Equipment for manufacturing FRID tag-inlaid metal part by SLM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204602595U CN203366361U (en) | 2013-07-30 | 2013-07-30 | Equipment for manufacturing FRID tag-inlaid metal part by SLM |
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| CN203366361U true CN203366361U (en) | 2013-12-25 |
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| CN2013204602595U Withdrawn - After Issue CN203366361U (en) | 2013-07-30 | 2013-07-30 | Equipment for manufacturing FRID tag-inlaid metal part by SLM |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400165A (en) * | 2013-07-30 | 2013-11-20 | 华南理工大学 | Method and equipment for manufacturing metal part with embedded FRID (Radio Frequency Identification) label with SLM (Selective Laser Melting) |
-
2013
- 2013-07-30 CN CN2013204602595U patent/CN203366361U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400165A (en) * | 2013-07-30 | 2013-11-20 | 华南理工大学 | Method and equipment for manufacturing metal part with embedded FRID (Radio Frequency Identification) label with SLM (Selective Laser Melting) |
| CN103400165B (en) * | 2013-07-30 | 2016-05-04 | 华南理工大学 | SLM manufactures the method and apparatus with embedded RFID label metal parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |