Download the September/October 1987 Issue in PDF Format
Total Page:16
File Type:pdf, Size:1020Kb
The Journal of Gear Manufa'cturing SEPTEMBER/OCTOBER '987 Tooth Thickn'ess Measurem'ents S,ele'ctionof ,Proper Ball Size to' ,Check an Invol'ut,e or H,elica'iGea'r Effects of Quality & R'esharpening Errors on Generating Accuracy S.IUnits - Measure.ments & Equivalencies Accurate gear inspection depends on repeatable machine data evaluation. Profit depends on speed. Maag CNC gear measuring eel_til three, in the lab and on the shop floor. • Maag mechanical machines combine the speed and automatic checking of CNC with the reliability of a base circle disc design for profile and lead gear inspection. • Only Maag mufti-axis electronic machines measure internal and external spur, helical and duster gears with up to 15 sets of teeth, all ina single setup, with accuracy of .000040'&n. • Maag's unique easy-to-use menu programming and software aurornattcally bring the stylus to the tooth surface. If you'd Iike to know how to spot your bad apples quicker, contact American Pfauter, 925 Estes Ave., Elk Grove VHlage,IL 60007. Phone (312) 640~7500. Says Quality Has toCost More? We Don't! New Angle Gear produces precision, hard finished spiral bevel gearing, at cut and lapped prices. Utilizing the Klingelnberg HPG·S method, state- of-the-art equipment delivers spiral bevel gears up to 30 inches diameter, at AGMA Levels 10-13.And New Angle gears accommodate higher loads (torque) with "whisper" quiet operation. Or ... you may opt to reduce gear size to further reduce cost. Also, matched sets are a thing of the past with our process of proven repeatabi Iity. Our FREE quick facts brochure can tell you a lot more ... Write or Call: VISIT US AT NEW ANGLE GEAR BOOTH #329. 505 Blue Ball Road (Rte. 545) Elkton, MD 21921 Phone: (301) 398-9490 CIRCLE A-3 ON READER REPLYCARD EDITORIAL STAPF PUBUSHER& mrroR· -CHIEF Michael Goldstein ASSOCIATE PUBUSHER &: MANAGING EDITOR Peg Short PRODUCnO IADVER11SING Pabicia F1am ASSISTANT EDITOR Nancy Bartels FREELANCE ARTIST Cathy Crittenden RANDALL ftlBUSIIING STAFF PRESIDENT INTERRELATIONSIDP OF TOOTH THICKNESS MEA~VREMENTS Michael Goldstein - AS EVALUAiED BY VARIOUS MEASURING TECHNIQUES VICE PRESIDENT Paul M. Dean, Jr; Richard Goldstein GENERAL MANAGER SELECTION OF A PROPER BALL SIz-E TO CHECK AN Peg Short INVOLUTE SPUR OR "WCAL GEAR TOOTH 24 Carroll K. Reece ART CONSULTANT Harlan Van Ge-rpen Marsha Goldstein RANDAU PUBUSHING 1425 Lunt Avenue P.O. Box 1426 Elk Grove, n, 6(X)()7 (312) 437-6604 EDITORIAL 7 ENGINEERING, OONSTANTS ••• SJ-MEASUREMENTS &; EQUIVALENCIES 101 Stan Jakuba EXHIBITORS' INDEX-GEAR EXPO '87 11 GUEST EDn'OlHAL 12 Richard Rosenberg, President,. ASME BACK TO BASICS ••• EEFBCI'S OF' HOB 'QUALITY &RESJlARPENlING ERRORS ON GENERATING ACCURACY 37 The Advanced Tedlllology Brian W. C1uff at Leonardo Da Vinci CLASSIFIED' 1452-1519 TECHNICAL CALENDAR 56 COVER This treadIe-powered boat uses an in- genious method ottransferring reciprocat- ing to rotary motion, enabling a pair of treadles to tum paddle wheels. When the treadles are pushed, they drive a beh September/October, 1'987 VOl. 4. No.. 5 around a central dn.un geared to toothed GEAR TEaI- -OLOCY, TIle , .."mal or Gur ,M:.""r"ct,,-.IlI,IIIISSN '074·3-68S81 'publIShed b""""thl~ b~ Randall PuhlWllnI wheels which drive the paddles. Ratchets Co .• Inc .• 142SlL.uni Ave-nue. P. O. Box 1<12 :' ElkC"""" 'li'illllQe, 11..60001. GEAR TOCII, OIJOCY, 'l'helournll or C •• , Manufac· wnng is dlSIrIbulfll (1ft or .harge to qu ..t.rled ,ndJvldwoli aOldn...... onthe !lUI' m nwlldl.rl'lnll mdusb')'. SuhKnpll<>n rllD [or non- in the toothed wheels keep the paddles qualified indiwlu.u. and ~nns are: $35.00 on '!he Unoted States, 155.00 IDr fDreIjpl counlllld. Second:.cla.s po5L1!1e po,,1 o:t ,ll.rl'''I!Wn Heigh".,. II.. and 01 addItIonal m;ailillil office'. turning in the same direction. Piiotma..ll!r no:! ddreM .ha!!QJ:i to GEAR TECH OI<OCY, Th J'ou_mal of Go: • Mam,lla!;tl!cl'i11Q. 1425, u.nl Ave-nile. P. O. With a steering device added, a vessel Bol< 1421i, Elk Grove VIlIaQe. IL 1iOOO7. CDn!:en~ cnpyna!u.d by IRANDALL PUBLISHING CO., INC. 1987. Articles apl'C"rillil In GEAR TECHNOLOCY ''''''' 001 be powered by treadles could operate regard- .eproduc~ In whol Dr lin pari ""thoul the ""p~ permwJDn or the publl.h • or th autho r, MANUSCIUPTS, W. are reque.ting: technical _ .. with an edoca.lmnal .mph", ... for .•n!'O"" hav'lII an>'lblfill 10 do ....th the less of wind conditions. a great advantage ~ nwI!1~!elti1ll D. p",ceS5I1"of~ ,Sub)ed:s ~I ~!'I>Iubons ~ prublems. ~oi,--:~, in an era ot sail power. ll!Chruques. dHiUN, .".,...,...... and aItl!malove manu(aclllnJIII, mrthods. "..,., can '" from u.. -How' 10 - of <IL\lmII !BACK TO BASICS) 10 the most advanced Iei:hnolOill'. Aliimanuscnpts submiUed woObe c.,..,run~ colUldimod li..-. Ihr PubIuI'1<r IMIImCIi no raponlibihty [or the oafety (If mu,," of in.Lnl.!Knpts ManUKJipll musI be IICrom:panoed ~ a seli,MIilreued. seif..wnpe<i e"""k>pe. mel be ...,110 GEAR TECHNOLOCY. Th J'.... """ of 'Cu. Man..raclunn!l. PO Rox 14l!1 Elk GI'OYC.IL 60001. CU21 437-61i04. Our Model 3000 ,ac Gear Analyzer is a third generation CNe gear mspectlon sys~ tern incorporatingl all oHhe eemprehenslva analytical tests and evaluation capabilities of previous M& M syst,ems, such as our Mode:12000', but with these added capabilities: • IDramatically improv,ed speed and accu- racy through new mechanical system design and advanced CNC controll. Ask about our proprietary ZFE (Zero FoUow- ing Error) technolQQY. • Computer hardware and! ap,plications software are modular to allow the user to' buy only ~he required ,capability. This makes the 300'0' 'OC adaptable to labo- ratolY testing or production-line inspection. • Integrated Stat,istical Process Control with local data base capability is an optional f,ea1me. • Networ;k,ing with MA!PS compatibility is availabl'e. I. IRobotic interfacingl for totally automatic loadltestlunload operation can be incorporated. Sma.rI'" Probe package. Operator Control Panel for Alpha-numeric keyboard with ·Mouse~ LVDTgage head and pari loading and machine lor one-time ,entry of part print and lofer- J,.lprocessor-based conver- set up. AJsa provides gage- ance data. "Mouse" permits use 01CAD tor deriver high-speed mea- head meter indication. techniques. surement data In J,.llnches. All of these advanced features can be in- corporated into the delivered system or added as a field upgradeata later time. For more information or ap,plioations assistance, write or call: M & M Precision Systems, 300 Progress Rd., West Carro.llton, OH 45449. - 513/85'9'-8273, TWX. 810/450-2626, FAX 513/859-4452. M&M PRECISIaN SYSTEMS AN ACME-CLEVELAND COMPANY Vilsit us at GEAR IEXPO ",8,1 IBooth #4'09' System Contro'l Center is GraphiCS printer copies CRT Graptlics p'loner delivers mufti- CNCstatus nlOnitor provides color graphics CRT with graphics and tabular test color hardi copy 01graphics and status and positiOnall displa.y "loucll,screen- control lor data. tabular test data. - 01mechanical system and last and simple operation. eNC control functions. CIRClJE A-6 'ON READER REPLYCARD Cu y reos on every gear. wtha CIMA's ere. Forget that CIh\Ais one of the top gear hobbing machine producers In the world. Disregard the fact that you get superior reliability and engineering from a company that has been a gear cutter pioneer for over 40 years. Remember that CIMA started in Italy. That's where ClMA built its legendary commitment to customer satisfaction. And, until now, that's where you had to go for (11M quality. No more. CIMA USA is now headquartered in Richmond, Vlrg.inia.Which means your assembly takes place in America and every (11M machine is now built to the American standard ... your standard. king in America, CIMA 5a¥ You Money. Now, you buy direct from an American manufacturer: (rMA USA So, lower costs for you, plus better and faster (IMA service and more accessible ClIIioA.gearproduction consultants. You know that ClMA can reduce your labor cost per job. Because ClMA's advanced computerized automations trim set up time, speed up tool changes and provide greater cutting accuracy and flexibility. Get Savings In Gear with CIMA. Better quality, lower costs. Now, get it all in gear with a call to (IMA-U5A..Give us a welcome call or circle us on the reader card to cut your cost now that (11M's here. CIMA·USA Division of G.D. PM. Inc. 501 Southlake Boulevard ,Richmond,VA 23236 (804)794-9764 Robot loading System Teletax (804)794-6187. Telex 684-4252 CIRCLE A-10 ON READER REPlV CARD INVEST IN THE FUTURE - NOW' It ISwith great anticIpatIOnthat we show ISperfect for looking at ways move closer to AGMA's Fall Tech- of changing and upgrading your nIcal Conference and Gear Expo manufactUring capabilities and for '87. which isbeing held on Oct. 4-6 purchasinq and Installing new in Cincinnati, OH. This bold under- technology and equipment to Im- takIng by both AGMA and [he ex- prove your product and lower ItS hIbitors In the Expo's 160 booths IS cost. an attempt to make a majOr change In the industry's approach Holding thrsexpo away from the to the expoSItion of gear manufac- colossus IMTSwill allow exhibitors turing equprnent. By combining and attendees the opportunity to the Expo with the Fall Technical focus on thiS small, but Important Conference, those involved In gear industry. Products and Ideas that manufaaunng WIll have the oppor- might get lost in the crowd at IMTS tunity to review the latest equip- will get an opportunity for center ment trends, and most Innovative stage at the Gear Expo '87.