Control of 3 axes beam of light is the new breakthrough that laser makes mark technology. Graph 1, the setting that this technology used Zhen Jing of existing X/y axis, apply its at Z axis. In the world that makes mark equipment in scanning laser, zhenjing motor makes of high focusing stimulate beam of light to cast to plane of a X/y. These mirrors move with fab speed, engrave a character in the mark on the component of product line thereby, form code, 2 dimension code, with etc all sorts of design. The advantage well known that use laser undertakes mark is engraved. High speed, high quality and permanent mark are engraved replaced rate slower and the technology with wronger dependability, be like firing pin or ink jet means. Want target object to be 2 dimension only and inside the focal length limits in laser (be in commonly ± 2mm) , so the bid that laser makes mark function bring wear well, get sth done once and for ever cuts the result. But be if once need to use laser to be in,be not the mark on plane,engraved? Be if need,perhaps in continuously located does height finish mark to engrave on two different plane? To hind for a kind of circumstance, fall when the situation that produces change highly during the product changes, traditional solution is a laser head installation go up at portable connect. Be about to happen when the product when changing, operator adjusts use tool the high level that contact books to. Cong Mou is planted for degree, this is labor concentrated model measure, because this may appear fluky circumstance, because the result relies on the experience of operation personnel or skill. Need to finish in a cycle that make bid especially multilayer when the mark of the spare parts is engraved, this plan becomes quite complex. Normally for, on the plant that a mechanical and linear slide block is secured at by installation. Linear slide block can pass the peripheral software that runs on industrial PC to include control, perhaps using relatively high laser head case to fall, through laser unit oneself undertakes controlling. Although these two kinds of plan look,be like feasible, but very incidental problem. When because product line is adjusted in high speed,hefting head of 15 pounds laser, inevitable meeting produces imprecise result. Besides the element of precision, safeguard daily, if change bearing or gear, will be to expend time and heavy work. All these problems add up, can increase cost to reach compositive the complex degree that go up. Till 2007 bottom, this kind of circumstance just is able to change. Company of Keyence of 3 axle control makes bid in the laser of its ML-Z CO2 and MD-V YVO4 series technology of 3 axle control was used on machine (see a picture 1) . This technology was used at present the configuration of X/y Zhen Jing, apply its at Z axis, and be secured normally the laser enlarge that outputs end in laser smooth road bundle lens, on the electronic Zhen Jing that is slidden in by installation, can make lens farther thereby or closer ground carries movement relative to laser output. As enlarge bundle lens carries shift to laser output, stimulate focus of beam of light to also move subsequently. Actually, this innovation gives the field territory of Z axis, amid stimulates optical can free mark to engrave any surfaces, premise is this surface should be located in inside the ± 21mm limits of primitive focusing position. What this increases is flexible make these unit can mark is engraved a lot of before the exterior kind that cannot counter, for example cylinder, spherical, cant and multilayer spare parts, do not have any reducing on precision and speed. Graph 2, the 2 safeguard that A) has a level in different height make bid, cause fade and font size mistake. Interior is adjusted make the focus cooperated every kinds of height to remove this kind of issue. The edge that B) has hitting mark to be met normally is in label on curved surface produces the drawing of font or be out of shape. Technology of 3 axle control can dog the surface of the spare parts, ensure thereby the clarity of font but differentiate. This kind of advantage that breaks through a technology is the manufacturer of equipment of electron of face of much stratum boundary of a production very quickly to bring profit. A lot of spare partses of this company ask the double deck interface of pair of apart 20~30mm undertakes making bid. The plan before this company is to use two ink shower nozzle that are located in different height to undertake mark is engraved. Closing to complain to what come from a client -- after stating ink jet mark wears away very easily, this company decides to use more the method making bid of firm. At first 2 dimension laser hits use level the test of sign system made not satisfactory kill (2a seeing a picture) . Because this product faces terminal user to roll out, font must clear but differentiate. Another occurrence problem and speed are concerned. Ink jet equipment can complete dozen of bid in component motion, make manufacturer can maintain productivity in best level. Traditional mechanical Z- axis adjusts the shift is too slow, so that cannot cooperate the speed of product line, make the user must stop product line to finish laser to make bid. The result reduced productivity, prove its are opposite hard the advantage of ink jet method. Technology of 3 axle control offers a kind perfect the plan that fits this special application requirement. Because Keyence hits mark function to move its central point below the speed that is as high as 12000 Mm/s, double deck interface can be obtained below product line speed cut the result without metabolic mark. Bid is made on the curved surface of pushbutton for manufacturer of component of large to car, facing similar problem. The button that a lot of people in us use to be everyday at ordinary times on him car objects, heat, defrost, A/C, adjust volume and broadcasting station. These pushbutton are engraved with mark of ink jet means all the time before, use before long hind, the most commonly used pushbutton can appear tatty evidence. Supplier of this car component hopes to obtain a kind new, faster method is used at cutting all sorts of different design sign on pushbutton, and laser very naturally makes a kind of choice. Nextpage pursues 3, the consistent label that uses laser to hit mark to obtain engraves quality, was equal to surpass ink jet mark even. The think of a way that uses laser is efficient to planar pushbutton, but a lot of pushbutton on Control Panel contain tiny radian. To implement the plan of laser completely, this company must find plane of purify of a kind of method and the coating that many curved surface carry a layer on the head, especially curved surface increasing in appearing in labour to learn the passenger cabin of the design. Primary plan includes a complex motor drive station, with controlling the height of pushbutton bracket accurately, make its move in laser lower part. However, this one technology is by the proof fluky and costly. Quality to consuming kind of product for it is crucial; The Lilliputian that hopes to control the mark on pushbutton to engrave in air conditioning without the person should be circular head to become rectangle originally. Three-dimensional software offerred the Marking Builder that MD-V9900 laser machine deploys to be close to in the implementation on curved surface pushbutton without a kind when seam mark to engrave simple and accurate method. To complete dozen of bid, laser machine operator needs to complete 3 simple step only: 1, in 2 dimension layout the file of Dxf graph format arranges the lieutenant general to come. 2, choose " columnar " the diametical parameter that inputs pushbutton. Real time software is three-dimensional show use door can test and verify is all the position of mark. 3, upload setting data to give laser the head. As 3 measure finish, MD-V has prepared dozen of bid. Graph the 3 results that show laser mark to engrave; Consistent mark engraves quality to was equal to surpass ink jet mark even. Graph 4, district is carved in large area mark (like 300mm X 300mm) the brim, font may produce faintness, and relatively sign appears greater for the character of quarter center area. Wide area plays mark and cut shift spread bundle another when lens place brings small dominant position may be the F-Theta lens that its absolved industrial standard. The technical definition to F-Theta lens is, "One kind can be compressed by much prism polarizing had been handled and project the stimulates beam of light correction camera lens at flat surface. " common ground says even if, f-Theta lens means the scanning rate that in whole mark quarter section carries due to reduce the focal error that causes because of convex. Unfortunate is, f-Theta lens can reduce this kind of effect only, comb-out of and rather than. Through using technology of 3 axle control, f-Theta lens becomes redundant. The speed of Z axis Zhen Jing can be based on beam of light to change in the different position in eye shot. Pass tend or leave laser valve, beam of light is introduced to to be pushed, on the same plane that maintains a focus to carve district in mark from beginning to end thereby. The stability that maintains anxious plane has a series of advantages, appear outstanding all the more in following application case. The effect of F-Theta lens is behaved most significantly inside vast area, make the part that uses laser mark to engrave chip of compositive electric power and electronic component and so on becomes difficult. In big mark carves district (like 300mm × 300mm) the brim, font may produce faintness, and relatively sign appears greater for the character of quarter center area (see a picture 4) . Abhorrent focusing position still can cause mark to engrave produce the deflection that amounts to 1mm. This may listen going up is not very big error, but for the IC chip that is 5mm only to width, the positional difference of 1mm will bring huge issue. This one problem is located in to for the IC production business of area of American north California, it is very real problem. In the past, this company accepted font to be out of shape the natural product that makes mark machine as laser. If mark carves the word with the quality with superior need or particularly small part, this company often uses a mechanical platform to move tray to undertake with the dimension of 50mm × 50mm to laser lower part mark is engraved, its are confirmed to be as a result time-consuming and costly. This company contacts Keyence company to promote its in order to search a kind the method of craft, winning a test from this is without controversy as a result: Happen inside whole tray area 0 be out of shape. This client is replacing his at present backward technology. The technique of 3 axle control that place of other possibility above describes may apply in treatment of other industry data, for example, cut out note model runner, the thick wire cable that clip balata laps, and be in accurately fabric or thin plastic piece on cut gives large-scale pattern. Technology of 3 axle control remains the new product on the market now, just begin to arouse people to be full of imagination ground to find out the plan that can solve manufacturing industry problem. The addition of productivity, accurate mark carves big range district, and the capacity that cuts in mark of rough calm surface, it is 3 axes laser only in promotion efficiency, a few kinds when reduce cost to go up are reflected. Its potential application opportunity is real it is infinite. Article author Joshua P. Jelonek is American Keyence company (Www.
Keyence.
Com) the project manager that vision and mark engrave technical ministry. His email address is: Jjelonek@keyence.
Com. CNC Milling