New nap promotes the value of old old machine tool

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  • source:WEDEMEYER CNC Machining
Factory of Boeing of Washington city Auburn was having the wing milling machine of 20 years of histories to undertake renovating the job to 9, decreased to the machine tool stays carry time and promote security and productivity. Narrate according to place of Boeing company website, since from Boeing 737 planes commercialize a service at was being thrown first 1968, the airline of world each district is right already this type make known to lower levels more than 6000 order. Of course, the change of current aviation industry had produced bigger difference with initiative type, but its are basic platform still keeps changeless. The wing of these type also is produced on the platform of likeness of old old rate, namely the bridge-type wing milling machine of Cincinnati, among them the manufacturing plant that 9 tablecloth buy is located in Washington city Auburn in Boeing company. Differ with these plane itself, these machine tools just used latest technology to undertake face-lifting recently only, included orbit of new control equipment, servo, motivation, software and more share among them. Serve professional corporation CNC Engineering by face-lifting (Enfield of administrative division of division of Kang Nie surname) of installation these add unit, promoted the productivity, safe safeguard that decreased to maintain a volume and strengthened handlers. Boeing company avoided devoted on new machine tool many capital, continue to use these basic technologies to create profit, make the precious component that these milling machine first time that have 20 years of histories made a company produce a course (graph 1) . Graph the effect with the Cincinnati wing main to satisfying the production of factory of Boeing of Washington city Auburn to need to have milling machine that 1 have 20 years of histories 9 times this. Express according to Boeing company, before undertaking face-lifting by CNC Engineering, the productivity that carry time stops to give whole plant outside the plan brought negative chain reaction this company shows, these machine tools still are used at producing Boeing the wing of 777, but this kind of complex and time-consuming production process is opposite essentially the influence of wing of these two kinds of type is identical (graph 2) . The manufacturing practice that comes for years proves enough of this production process satisfies a requirement. But the output that begins to add these two kinds of model as the company, when the machine tool stops carry to occupy, become catch up with to prevent a company one of block up of demand. The ageing control system of wing milling machine has begun to cause defend the issue with dependability respect, and the part that these systematic place use is bought harder and harder also. More serious is these machine tools are as long as the wiring on the orbit of X axis motivation of 150ft and its spacing switch also appeared problem. Graph the complete information that 2 as similar as this custom-built handlers show to wing can be examined to produce place to need on screen divides understanding definitely beyond these problems, the company still wants to promote the productivity of these machine tools and the security that increase handlers safeguard. Undertake with respect to the requirement massive overhaul works so, so this company engaged the CNC Engineering company that pursues this kind of business technically. To replace the control equipment of ageing and servo, this provider that provides new nap service for the client suggests to use the Fanuc 30i-AM CNC that deploys orgnaization of servo of new-style Alpha I, changed system of drive of Allen Bradley main shaft in order to promote a machine tool normal run time. Next, this company installed an orbit of more new-style, simpler X axis motivation on every machine tool, replaced all and relevant wiring and public project, replaced the wiring of machine tool others and the spacing switch of all ageing at the same time. The nose of double main shaft of every machine tool is shared same the fact of a Y axis, because be put in the possibility that produces collision,still brought about a machine tool to halt use. To solve this problem, CNC Engineering developed the custom-built software that can monitor position of these two nose. If detect,collision is about to happen, so this software can stop nose to run and issue warning. These measure will reduce the time of out of service of the machine tool substantially, company of Dan Bo news still wants to continue to promote productivity. An element that brings about machine tool efficiency to cannot rise is handlers the design means to hanger (graph 3) . Although this hanger can move along whole bed body, but its dimension is lesser and the function is finite. Because this handlers can be in only,install workpiece or be versed in finite control has to the machine tool when making on main shaft. CNC Engineering solved this problem through making large strut bar, it is OK that this kind of strut bar lets every handlers exercise stand move along body of bed of whole machine tool. Express according to Boeing company, such making that workpiece installation procedure is quicker more efficient. Graph hanger offerred 3 redesigned handlers to compare former model more functions, this kind of hanger makes handlers OK install machine tool of the control in the process in workpiece spare time is additional, the handlers that takes workstation of this new-style movable type can see a series of custom-built screen, show current wing makes the news related the process only on screen. Express according to Boeing company, incorporate these information reduced workpiece to install time to a few screen, make a machine tool easier use. Also promoted productivity to the buildup of axis of machine tool X and Z axis. them the electric machinery of X axis servo of 1500-rpm changes after electric machinery of Fanuc Alpha 40S 3000-rpm, axial speed promoted 1 times (come from 300ipm 600ipm) , still retained enough power for wing treatment at the same time. To the Z axis of the machine tool, increased linear scale to promote accuracy double. Machine these wing to ask to use a diameter to come greatly the milling cutter covering type of 12inch, and upper cover of every milling cutter has a shield, use those who collect at holding place of unit of bit of add true suction to cut bits. This shield can be in only in the past direction of fluctuation of edge of hydraulic pressure crock according to fixed stop a dot to undertake displacement. And carry out with a servo implement after replacing crock of this hydraulic pressure with independent servo electric machinery, the height of this shield can pass assembly order injunction to undertake controlling. Accordingly, handlers can adopt the position that adjusts this shield, promotion cuts bits vacuum to absorb efficiency, shorten exercise is periodic, reduce shield material as far as possible wear away. Previously, wing has in manufacturing process special the component that cost and makes mistake easily, need to stick a label that contains component identifying data in labour of each wing begin namely. To implement the automation of this operation, reduce mistake and promotion security, CNC Engineering company developed a kind of label that is based on a PC to carve applied process, make handlers OK will input of scanning of form code information arrives in CNC. A coordinate rotates the function makes sculpture exercise OK carry out below aleatoric angle, and function of a mirror makes sculpture exercise OK carry out on the 2nd main shaft. CNC Engineering company deployed probe of his Renishaw RMP60 wireless transmission component for two main shaft of every machine tool. This company still developed custom-built software, let nose of left main shaft can configure means to play exploration part in the mirror, check the position of aperture and common difference. The face that these probe still can use at installing exercise coordinate to check dragon door bed is rough degrees whole. Finally, added detector of rotate speed of outfit main shaft to promote security, can detect so when does main shaft of test and verify stop roll, so that handlers can change,cutting tool executes other operation. And, what changing to provide larger facility is new-style after platform of portable type handlers, provided larger safe operation space, use at the same time double walk raise Liang Lai to prop up platform, prevent the vibration that produces when ambulating between the machine tool. After CNC Engineering completes his work long, renovate round of test of the machine tool to make clear to the first, the cycle that works for the first time shortened from 45min 20min, improved 56% . The machine tool after another test renovates is as complete as what did not renovate undertook contrast with model model, the result is covered to a group of 4 components treatment cycle shortened 30% . CNC Milling