Detect nicety equipment introduces job shops

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  • source:DELENO CNC Machining
One of main principles that seed profit makes, any cannot create value for the client measure in eliminating pull current Cheng namely. Although do not have a person to be able to control quality (QC) the move that counts a kind not to increase value, but the time that a lot of job shops hope to shorten however or cancels workshop personnel to send metric room to undertake detecting will make a round trip answering an expenditure work. A kind of kind that achieves this one goal will detect namely equipment introduces job shops directly, at present already a lot of manufacturer are being done so. Measure equipment supplier 3 abundant (the United States) Drew Prine of the contract manufacturer of the company and manager of service of technology of company of industry of sale delegate Stark points out, the combination of all sorts of element makes job shops can measure a few nicety the technology (if coordinate measures machine, vision,measure figure of machine, face or exterior surface roughness to measure an instrument to wait) application detects at workshop spot. For example, in using the machining center of high-pressured refrigeration technology to be able to machine a process in cutting, auxiliary platoon bits is mixed break up the quantity of heat that passes into workpiece, conduce to the dimension change that control rises because of workpiece temperature and causes thereby. In addition, to control the contaminant in workpiece temperature and air, the workshop environment that maintains constant temperature and clean to be spent completely is indispensable also. Sam Wilkof of potential vice president of company of risk Stark industry expresses, "Nevertheless, measure equipment to nicety and character, job shops may be an environment that has potential risk. I see rarely measure equipment supplier to be able to say for certain, ' our measurement equipment can be used in the workshop absolutely. ' of course, we have a few clients to use nicety to measure equipment in the workshop really, but this should depend on greatly the ambient conditions of the workshop. " Wilkof points out, be used at workshop environment detect equipment can be enclosed inside protective cover rarely. "Below most circumstance, workshop environment is cleaner still, the possibility that in the measurement that the workshop uses equipment is polluted is not very big. In addition, a few defend technology (if air keeps apart workbench) can will measure equipment and come from (for example) the resonance of two electric machinery that move in the workshop or oscillatory segregation leave come. " Jonathan Wilkof of Stark company production engineer says, "Another consideration element is, measure the groove of equipment to maintain nicety and be safeguarded what need undertakes regularly and calibration. No matter your job shops is likely how clean, but manufacturing environment maintains altitude impossibly from beginning to end in that way like the metric room that close clean and be controlled accurately. In this respect, safeguard a likelihood actively preventively very useful. With compare to measuring the maintenance of equipment in metric room, this kind preventive the office that maintains likelihood and more to machining the maintenance of the machine tool to have likeness. " Jonathan Wilkof continues to say, should tear open a few crucial component of testing instrument regularly come down to undertake cleaning, the examination wears away state and undertake other and necessary detect. "Still can be opposite right now measure machine undertake calibration. We discover, this kind maintain the service life that can prolong those who be used at the workshop to measure equipment greatly actively. " Sam Wilkof expresses, this kind is safeguarded regularly and the cycle of calibration also depends on likewise specific workshop ambient conditions. "Some workshops are likely 1 year or just need 2 years to undertake maintenance mixing calibration. Those detect equipment is in the utilization rate of the workshop is very high, and ambient conditions not quite good user, the likelihood needs to undertake often maintenance mixing calibration, the cost that costs for this and time also should be to buy detect the consideration element when equipment. " do not appear in hypothesis great mechanical failure or change below the circumstance of component, this kind is safeguarded and calibration cost may be achieved 1, 500 - 2, 500 dollars. The following example showed the nicety of two enterprise general that comes from nuclear industry and manufacturing industry of medical treatment parts of an apparatus measures a technology (include hardware and software) the earnings that apply at job shops and achieves. The company of Areva NP of treatment quality control of reactor spare parts is the manufacturer that machines component for nuclear power plant. Be based on safe reason, this kind of component must reach extremely strict quality level. According to this company component production engineer Bill High introduces, they should be world each district (include Chinese Taiwan, Germany, France, England, United States and Japan) nuclear reactor production replaces spare parts, because different reactor is designing existence difference, because this needs to process a variety of mutation products of congener component, and the part that a little varietal product has many to need is machined and detect. High says, "Although the metabolic speed of nuclear industry does not calculate too fast, but the pressure that exists to improve product quality and treatment efficiency ceaselessly from beginning to end. " Areva company should be to one of methods of this kind of pressure the Accura3 coordinate that uses industry of a Carl Zeiss to measure technical company to offer in job shops is measured machine. Measure with this machine the spare parts that detected workpiece is less than the whorl of 25mm to amount to 300mm to dimension from length. Among them the stainless steel connect that an example is nuclear fuel marvellous component. This kind of workpiece is CF3 accurate cast, weight is 4 ～ about 25 pounds. Areva company is in what comprise by two horizontal machining center and system of a linear tray to make the treatment on unit this kind of cast. Use this to measure machine make the machine tool operates personnel can nearby detects workpiece, obtain almost real time craft feedback information. High says, "Machine this spare parts to have 4 normally - 5 working procedure, we are measured with coordinate machine in undertaking machining, detect -- machine measure hind to undertake detecting in every sometimes, be in 2 sometimes or undertake detecting after 3 labor situation. This treatment unit basically is unmanned value defends what move automatically, accordingly we must ensure treatment process is stable and responsible, the treatment measure of the accurate requirement that finish. " 3 coordinate measure the position of machine and treatment unit apart 6 meters or so. High explanation says, "It is too good that the ambient conditions here does not calculate, but our workshop has constant temperature to control, and we measure machine surface to undertake cleanness to coordinate regularly, move in order to maintain its normally. " be had by treatment spare parts strict tolerancepublic errand requirement: Flatness 0.

05mm, diametical public errand 0.

0125mm, positional public errand 0.

05 - 0.

075mm. High says, "Generally speaking, the connect of a reactor that press water orders goods batch may be upside connect and bottom connect each 60; And of reactor of a boiling water order goods the quantity is each 200, so treatment batch does not calculate big. In the past, we achieve trait this kind of order needs time of a few months. Now, we use horizontal machining center (HMC) production unit and the workpiece exchange system that have 36 tray, the speed that machines contact can be achieved everyday 12 - 15 workpiece (depend on its devise type) . We need to machine the spare parts of all sorts of different type, we hope to obtain a kind of part most treatment batch of economy. " buying 3 coordinate to measure before machine, this workshop uses all sorts of complex special check to provide -- High calls his " super gauge " -- will detect workpiece. He says, "We hold work check to provide, numerate from a lot of dial gauge all sorts of dimension. These check are provided can tell us whether workpiece is eligible, but the specific rate that we are not clear that workpiece is accorded with or does not accord with dimension requirement. " High says, this 3 coordinate are measured machine (CMM) but will all be become to measure a file by work out of check workpiece feature, use can offer Cpk (coefficient of the ability that make Cheng) with SPC (statistical process is controlled) of data measure software. The member that machine a person can be finished by oneself almost all detect the job. "Our member that machine a person puts work to CMM, start detect program. Machine program and CMM detect the program is by what write with a few people, they use Shuang Bing to show, operation personnel can examine workpiece to install mix condition to be obtained through an indication screen measure an instruction, show from another screen output measures data next. " of connect of marvellous component of stainless steel fuel eventually check program may need to check feature of hundreds spare parts, detect the process is as long as 40 minutes. This qualitative check system makes the quality control personnel of Areva company can more dedicated improve at craft, is not flower of will main energy in test and verify on the quality of every spare parts. High says, "Our quality control personnel does not need to detect to workshop spot workpiece. They check and accept the finished product spare parts that treatment ends in metric room, undertake to its visual examination, detect a few crucial features, get online next examine what the workshop collects to measure data. If look everything is normal, they can agree to receive this part. " the Accura3 coordinate that this company uses is measured machine scanning of a contact measures a head, the discretion that can measure surface of spare parts key thick and fast rises and fall. High says, "This is measured machine work very well below workshop environment. In buy before machine, our mapping the temperature curve of job shops, discover temperature has change a bit, still have a few fog in addition, because we use the reason of high-pressured cooling fluid,this is. But, we are opposite regularly measure machine undertake preventive safeguard, wipe surface of gas surplus bearing and granite mesa everyday. We make measure as far as possible machine keep clean, ask personnel of Zeiss company after service to debug maintenance regularly. " introduce according to High, zeiss3 coordinate is bought to measure in the decision before machine, areva company ever considered the product of manufacturer of overmuch home CMM. He says, "We are an internationalization enterprises, we have Zeiss to measure in the company of France and Germany machine, supplier of our a few cast also uses Zeiss to measure machine, accordingly, want us to be willing only, the program that can use them will detect oneself product. " High is summed up, "Our spare parts value does not poor -- the price of cast semifinished product that we buy is high, next our treatment added on every spare parts again a large number of value. Accordingly, will detect link hands in the member that answer a workshop to machine a person, provide the information of real time feedback that processes a process for them, can reduce percent defective considerably, save a large number of cost for us. " the vision of special cutting tool surveys Lowell company is one makes titanium alloy, stainless steel and plastic human body for plastic surgery and disease of remedial heart and vessels embedded contract manufacturer, already had manufacturing history of nearly 20 years. This company is located in American bright Buddhist nun Abolisi, have 70 employee and machine tool of 100 numerical control (include Swiss type lathe, vertical and horizontal machining center and muti_function machine tool) . Assure to be in charge of Introduction Jim Stertz according to this company quality, its job shops is a few more custom-built also special cutting tool, these cutting tool are producing very big effect in the pull current Cheng in this company. He says, "The 10 ％ that custom-built cutting tool may occupy our place to use cutting tool only - 20 ％ , but they are the mainest cutting tool. We already had hundreds kinds of different cutting tool type, and still be in grow day and day. " Stertz expresses, the figure of custom-built cutting tool may be different common, its diameter limits is 0.

125 - 0.

500mm. Among them an example is to be used at machining a kind vertebral and embedded the hook form cutting tool of a feature of the locking on internal diameter. The public errand of radius of circular arc of point of a knife of this kind of complex cutting tool is 5 μ M only. Stertz says, be in Lowell company, the development of special cutting tool is the job that a need has repeatedly, it is likely only then at machine tool handlers or other workshop personnel. The design originality of cutting tool may come from anyplace. Till two years before, lowell company is its the bag outside special cutting tool gives an outside supplier birth all the time. In those days, because be put in quality and delivery time problem, stertz and other administrator consider will special cutting tool by outside bag production turns to be produced for proper motion. To implement this kind of change, the first pace was to buy grinding machine of tool of an EWAG WS11-SP. This machine tool can hold clip through, finish cylindrical be machined with the grinding of conic form cutting tool and measure, have the colleague operation of experience of 30 old treatment by. Stertz says, "Now, the pull current Cheng of cutting tool is the cutting tool from us design branch operates personnel to grinder, arrive again qualitative check branch, whole technological process is finished inside the workshop, any adjustment that what produce place of a kind of special cutting tool to need or detect can finish very quickly. " detect hundreds kinds of different special cutting tool has challenge sex extremely possibly, but Lowell company surveys a system through buying the SmartScope 400 of an OGP company visual sense, solved this one difficult problem. The special cutting tool that puts this vision around tool grinding machine to measure a system to be able to be made to grinding and other component undertake detecting quickly. Stertz says, "We dog on visual system detect the appearance of cutting tool geometry that treatment of EWAG tool grinding machine gives, will detect next the SmartProfile software of data input OGP, undertake comparing is opposite with the CAD model of this cutting tool, obtain the visible description of pair of cutting tool and deviation of appearance of its name geometry thereby. " measure data to 3D, lowell company is worth the 3 coordinate of Leitz PMM that defend to measure machine and a Brown with a robot&Sharpe3 coordinate is measured machine hundreds several fortified point that make cutting tool or part. Input these data that nod the cloud SmartProfile software to undertake the error is evaluated next. This system already became Lowell special cutting tool to produce a of flow main component, and Stertz anticipates, machine the ceaseless development of course of study as medical treatment parts of an apparatus, special cutting tool will produce more main effect in the pull current Cheng in Lowell. He says, "As for small what start surgical operation and design is medical component size is smaller and smaller, the feature is more and more careful, the cutting tool radius that machines these spare partses and exterior figure also become extremely complex, with the cutting tool not to be named on the same day with that used in the past. Accordingly, we cannot machine these spare partses with vintage cutting tool. " Stertz expresses, same method also is used hundreds kinds when Lowell company produces at detecting medical spare parts. The treatment batch of these spare partses arrives from 5 5, 000 (the commonnest is 100 - 500) . "We measure a system to make detect in treatment to the spare parts with SmartScope vision, detect with us the way of special cutting tool is same -- dog the appearance outline that measures a part, input outline data SmartProfile software, undertake comparing is opposite with CAD blueprint. " his complement says, handlers needs to glance chart shows the box line on screen pursues only, can define the treatment quality of cutting tool or spare parts immediately. CNC Milling