High Speed Direct Driven CNC Gear Hobbing Machine MLT-YK3132
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Gear Cutting and Grinding Machines and Precision Cutting Tools Developed for Gear Manufacturing for Automobile Transmissions
Gear Cutting and Grinding Machines and Precision Cutting Tools Developed for Gear Manufacturing for Automobile Transmissions MASAKAZU NABEKURA*1 MICHIAKI HASHITANI*1 YUKIHISA NISHIMURA*1 MASAKATSU FUJITA*1 YOSHIKOTO YANASE*1 MASANOBU MISAKI*1 It is a never-ending theme for motorcycle and automobile manufacturers, for whom the Machine Tool Division of Mitsubishi Heavy Industries, Ltd. (MHI) manufactures and delivers gear cutting machines, gear grinding machines and precision cutting tools, to strive for high precision, low cost transmission gears. This paper reports the recent trends in the automobile industry while describing how MHI has been dealing with their needs as a manufacturer of the machines and cutting tools for gear production. process before heat treatment. A gear shaping machine, 1. Gear production process however, processes workpieces such as stepped gears and Figure 1 shows a cut-away example of an automobile internal gears that a gear hobbing machine is unable to transmission. Figure 2 is a schematic of the conven- process. Since they employ a generating process by a tional, general production processes for transmission specific number of cutting edges, several tens of microns gears. The diagram does not show processes such as of tool marks remain on the gear flanks, which in turn machining keyways and oil holes and press-fitting bushes causes vibration and noise. To cope with this issue, a that are not directly relevant to gear processing. Nor- gear shaving process improves the gear flank roughness mally, a gear hobbing machine is responsible for the and finishes the gear tooth profile to a precision of mi- crons while anticipating how the heat treatment will strain the tooth profile and tooth trace. -
Grinding Machines
GRINDING MACHINES www.fermatmachinetool.com CYLINDRICAL GRINDING MACHINES FERMAT FAST FACTS CONTENT FERMAT MACHINE TOOL LTD CYLINDRICAL GRINDING MACHINES 650 Number of employees TOP SIEMENS Seller COMPANY INFORMATION .................................... 4 About the company FERMAT CYLINDRICAL GRINDING MACHINES ...................... 8 BHC / BHC HD CYLINDRICAL GRINDING MACHINES ...................... 12 BHCR / BHCR HD mill. NEW MODELS € 1901 CYLINDRICAL GRINDING MACHINES ...................... 16 78 Oldest member of FERMAT Group BHM / BHMR Annual sales in 2016 BASIC DESIGN ELEMENTS OF THE MACHINE .................. 23 Beds and Tables, Grinding Wheel Head, Work Head, Tailstock, Ball screws, Other Components, 8 Electric Equipment, Control Systems and Drives Branches in Czech Republic 100+ ACCESSORIES AND POSSIBLE OPTIONS....................... 28 Annual production/sold machines COMPONENTS ............................................... 34 ...................... CYLINDRICAL GRINDING MACHINES 36 BUC E BESTSELLERS CYLINDRICAL GRINDING MACHINES ...................... 38 5 BUB E Football playgrounds would 1 fit in floor space OTHER PRODUCTS ........................................... 40 of FERMAT Production facilities Table Type Horizontal Boring Mills, Micron (1 µm) has the most Floor Type Horizontal Boring Mills accurate production machine from our machining shop REFERENCES ................................................ 44 - - 2 3 - - ABOUT THE COMPANY ABOUT THE COMPANY FERMAT MACHINE TOOL LTD FERMAT MACHINE TOOL LTD Prague The FERMAT Group is a traditional Czech care. As a result, the FERMAT Group be- Manufacturing, servicing, upgrading lopment, design and construction with- manufacturer of machine tools. The prod- longs to the top machine tool manufactur- or complete overhauling of grinding in the strong FERMAT Group led to ex- uct portfolio consists primarily of grinding ers around the globe. machines are the key activities of the traordinary quality of our modern CNC machines as well as horizontal boring and FERMAT Machine Tool Ltd. -
Precision Guidance Needed for Metalworking Machinery That
Precision guidance needed for metalworking machinery that automatically grinds 40,000 sinks every year https://www.hepcomotion.com/case-studies/precision-guidance-needed-for-metalworking-machinery-that- automatically-grinds-40000-sinks-every-year/ INDUSTRY PRODUCT COUNTRY PROCESS GV3 - V Linear Manufacturing Germany Grinding Guide System Peitzmeier Maschinenbau machine builders based in Germany specialise in the construction of grinding machines. Their latest invention, the Omni-Grind Twin 3100 AC, enables automated grinding and polishing of workpieces in the metalworking industry. The machine builder relies on HepcoMotion’s GV3 guidance to prevent damage to the steel during processing; the linear guide system enables precise alignment of the grinding tool in the range of hundredths of a millimetre. The challenge: A major customer wants to precision grind 40,000 stainless steel sinks per year Among the users of Peitzmeier’s grinding machines is a Dutch manufacturer, who processes stainless steel sinks for a Swiss company. The design of the grinding machine had some challenging requirements, as Ulrich Peitzmeier, Managing Director of Peitzmeier explains: “The three-ton plant needed to be capable of grinding 40,000 sinks per year with extra care – the sinks are made from sheet metal just one millimetre thick. If a tool takes too long grinding material in one place, it can very quickly damage the workpiece.” Peitzmeier had to adapt their grinding machine to meet these requirements. The heavy grinding tool, usually mounted on a double-stranded U-rail, had to be replaced in favour of a lighter tool that could be aligned more precisely on just a single guide rail. -
Intelligent Process Optimization „Innovation Is Our Future.“ Sascha Tschiggfrei, CEO the Future Has Begun
Intelligent Process Optimization „Innovation is our future.“ Sascha Tschiggfrei, CEO The Future has begun As a global market leader, we manufacture technologically advanced high precision tool holders for turning centers and swiss type lathes that are known for high performance and long life-time. Using our new “smart” technology, our customers will be able to intelligently optimize and monitor their processes in the future. Intelligent Process State-of-the-art technology for maximum productivity. With this claim, WTO develops Optimization and produces superior precision tool holders in terms of technology and quality. Used intelligently, processes are optimized and production becomes more productive. WTO Driven Precision Tool Holders equipped with innovative „smart“ technology enable intelligent online process monitoring. “Consistent development - always one step ahead.” Karlheinz Jansen, CTO High Tech – Made in Germany From the technical design to the finished product we make no compromises when it comes to manufacturing our high precision tool holders. Permanent investment in state-of-the-art production technologies, high quality standards and a large manufacturing depth. Our products are in use worldwide, wherever precision parts are manufactured on turning centers with high productivity. „Our employees don‘t work for WTO. They work for the success of our customers.“ Daniel Sierra, Sales Director WTO Your Success is our Business Motivated employees are the basis for 100 % consistent customer focus. WTO offers its employees a state-of-the-art working environ- ment to work independently and ensures highly motivated employees in a family-owned technology company. To a large extent, WTO relies on its own highly qualified employees in order to achieve high quality standards. -
Industrial Productivity Training Manual
INDUSTRIAL PRODUCTIVITY TRAINING MANUAL Version 2.0 Written by: Dr. Michael R. Muller - Director, Don Kasten ©2006 Rutgers, the State University of New Jersey Table of Contents INTRODUCTION..............................................................................2 PRODUCTIVITY TOOLBOX ..............................................................5 Toolbox Introduction.....................................................................6 Productivity Metrics......................................................................9 Cost of Labor..............................................................................10 Space Optimization .......................................................................11 Productivity Questions...................................................................14 CONCEPTS FOR PRODUCTIVITY ENHANCEMENT, PART I INCREASING PIECES/PERSON/HOUR .............................................19 QUICK CHANGES......................................................................20 AR No. 1 Decrease Die Change-Out & Start-Up Times...................26 AR No. 2 Use Fixtures to Reduce Lathe Set-up Times....................32 AR No. 3 Install a Rotating Nozzle Carousel to Reduce Set-Up Times.34 AR No. 4 Employ Modular Jigs to Reduce Process Set-up Times.......36 BOTTLENECK MITIGATION.........................................................39 AR No. 5 Add Machine Operators to Reduce Production Bottleneck....41 AR No. 6 Install Refrigeration System to Cool Product...................45 AR No. 7 Replace Old Lathe -
Gear Rolling for Production of High Gears Alireza Khodaee
Gear Rolling for Production of High Gears Alireza Khodaee Gear Rolling for Production of High Gears Alireza Khodaee Licentiate Thesis, 2015 KTH Royal Institute of Technology Industrial Engineering and Management Department of Production Engineering SE-100 44 Stockholm, Sweden TRITA-IIP-15-06 ISSN: 1650-1888 ISBN: 978-91-7595-678-7 Abstract Gears are used to transmit mechanical work from one point to another. They are widely used in different mechanisms and they are the most important components of a transmission system. Thus, it is important that they are manufactured with high precision to deliver the work with highest possible efficiency. The dominant gear production method is metal cutting, like hobbing. The gear manufacturing industry aims to replace their traditional production lines with greener processes and thereby urge engineers to think about using metal forming methods instead of the traditional metal cutting solutions when possible. Gear rolling is an interesting metal forming method that can be an alternative method to fabricate gear wheels. Research on gear rolling firstly came into interest around 2000. Very few papers are published that covers the development of the method and its limitations and advantages. Almost all of these publications considered rolling of gear wheels with small modules. The focus of this study will be on application of gear rolling for gear wheels with large module (over 3 mm) where the amount of deformation is much larger than found in previous studies. In this thesis the Finite Element Method has been used to simulate and predict the results of rolling of high gears. In addition to that experiments were performed to validate the numerical results and develop the modelling technique for further investigations. -
Grinding and Abrasives This Year
Gear Grinding4/26/043:54PMPage38 Ph t t f Gl C Gear Grinding 4/22/04 1:49 PM Page 39 Grinding Abrasivesand Flexibility and pro- Flexibility is seen in many of the newest model gear grind- ing machines. Several machine tool manufacturers (Kapp, ductivity are the key- Liebherr & Samputensili) now offer dedicated gear grinding machines that are capable of either generating grinding or words in today’s form grinding on the same machine, and the machines can use either dressable wheels or electroplated CBN wheels. On- grinding operations. machine dressing and inspection have become the norm. Automation is another buzzword in grinding and abrasives this year. Gear manufacturers are reducing their costs per Machines are becom- piece by adding automation and robotics to their grinding and deburring operations. ing more flexible as Productivity is being further enhanced by the latest grind- ing wheels and abrasive technology. Tools are lasting longer manufacturers look and removing more stock due to improvements in engineering and material technology. All of this adds up to a variety of possible solutions for the for ways to produce modern gear manufacturer. If your manufacturing operation includes grinding, honing, deburring, tool more parts at a sharpening or any number of other abrasive machining operations, today’s technology lower cost. What offers the promise of increased productivi- ty, lower costs and greater quality than ever before. used to take two By William R. Stott machines or more now takes just one. Photo courtesy of Gleason Corp. www.powertransmission.com • www.geartechnology.com • GEAR TECHNOLOGY • MAY/JUNE 2004 39 Gear Grinding 4/22/04 1:49 PM Page 40 ROTARY TRANSFER GRINDER other ground parts. -
Equipment Grinders and Mills
Equipment Grinders and Mills Matt Ross PE Penhall Company National Concrete Consortium April 26-28, 2011 Indianapolis, Indiana making life a little smoother Grinders & Groovers What is Diamond Grinding? • Removal of thin surface layer of hardened PCC using closely spaced diamond saw blades • Results in smooth, level pavement surface • Longitudinal texture with desirable friction and low noise characteristics • Frequently performed in conjunction with other CPR techniques, such as full-depth repair, dowel bar retrofit, and joint resealing • Comprehensive part of any PCC Pavement Preservation program Benefits of Diamond Grinding • Costs considerably less than a HMA overlay or thin- lift AC treatment • Diamond ground PCC surfaces can provide increased fuel economy • Increases friction and reduces hydroplaning • Can be constructed with short lane closures without encroaching into adjacent lanes • Grinding of one lane does not require grinding of the adjacent lane • Does not affect overhead clearances underneath bridges and signs – requires no side slope or guard rail modifications • Provides a low noise surface texture! Pavement Problems Addressed • Faulting at joints and cracks • Built-in or construction roughness • Polished concrete surface • Wheel-path rutting • Permanent upward slab warping and curling • Inadequate transverse slope • Unacceptable noise level Safety, Surface Texture and Friction • Increased macrotexture of diamond ground pavement surface provides for improved drainage of water at tire- pavement interface • Longitudinal -
Grinding Machine Construction Types of Grinders
Grinding machine A grinding machine is a machine tool used for producing very fine finishes or making very light cuts, using an abrasive wheel as the cutting device. This wheel can be made up of various sizes and types of stones, diamonds or of inorganic materials. For machines used to reduce particle size in materials processing see grinding. Construction The grinding machine consists of a power driven grinding wheel spinning at the required speed (which is determined by the wheel’s diameter and manufacturer’s rating, usually by a formula) and a bed with a fixture to guide and hold the work-piece. The grinding head can be controlled to travel across a fixed work piece or the workpiece can be moved whilst the grind head stays in a fixed position. Very fine control of the grinding head or tables position is possible using a vernier calibrated hand wheel, or using the features of NC or CNC controls. Grinding machines remove material from the workpiece by abrasion, which can generate substantial amounts of heat; they therefore incorporate a coolant to cool the workpiece so that it does not overheat and go outside its tolerance. The coolant also benefits the machinist as the heat generated may cause burns in some cases. In very high-precision grinding machines (most cylindrical and surface grinders) the final grinding stages are usually set up so that they remove about 2/10000mm (less than 1/100000 in) per pass - this generates so little heat that even with no coolant, the temperature rise is negligible. Types of grinders These machines include the Belt grinder, which is usually used as a machining method to process metals and other materials, with the aid of coated abrasives. -
Manufacturing Processes
Module 7 Screw threads and Gear Manufacturing Methods Version 2 ME, IIT Kharagpur Lesson 31 Production of screw threads by Machining, Rolling and Grinding Version 2 ME, IIT Kharagpur Instructional objectives At the end of this lesson, the students will be able to; (i) Identify the general applications of various objects having screw threads (ii) Classify the different types of screw threads (iii) State the possible methods of producing screw threads and their characteristics. (iv) Visualise and describe various methods of producing screw threads by; (a) Machining (b) Rolling (c) Grinding (i) General Applications Of Screw Threads The general applications of various objects having screw threads are : • fastening : screws, nut-bolts and studs having screw threads are used for temporarily fixing one part on to another part • joining : e.g., co-axial joining of rods, tubes etc. by external and internal screw threads at their ends or separate adapters • clamping : strongly holding an object by a threaded rod, e.g., in c-clamps, vices, tailstock on lathe bed etc. • controlled linear movement : e.g., travel of slides (tailstock barrel, compound slide, cross slide etc.) and work tables in milling machine, shaping machine, cnc machine tools and so on. • transmission of motion and power : e.g., lead screws of machine tools • converting rotary motion to translation : rotation of the screw causing linear travel of the nut, which have wide use in machine tool kinematic systems • position control in instruments : e.g., screws enabling precision movement of the work table in microscopes etc. • precision measurement of length : e.g., the threaded spindle of micrometers and so on. -
VOLLMER Vgrind 360
SEPTEMBER 2018 A NEW GENERATION OF PRODUCTIVITY: VOLLMER VGrind 360 More effi cient production of carbide tools. Multi-level machining with optimal kinematics, 5 CNC axes in perfect interpolation, innovative operating concept: The VGrind 360 sets standards. Discover them now! www.vollmer-group.com/vgrind New ShapeSmart®NP3+ New GrindSmart®630XW New LaserSmart®501@ AMB 2018 New HSK63 clamping and handing system Profi le cutting, ablation for chip breaker in one single setup for cylindrical tools and inserts as well The 6th axis provides a high degree of fl exibility and freedom of grinding movements New generation of GrindSmart® series allows superior surface Integrated 6-position fi nish with linear motors wheel changer In-process tool measuring system for unattended production New 15'' control panel with integrated PC Please visit our booth at Halle 5, Stand D72, AMB Messe Stuttgart www.rollomaticsa.com [email protected] www.advancedgrindingsolutions.co.uk SEPTEMBER 2018 COVER STORY 3 VOLUME 16 | No.4 ISSN 1740 - 1100 Shaping success together At the AMB 2018 exhibition in Stuttgart, VOLLMER will present its new portfolio under the motto ‘Shaping Success Together’. In addition to its grinding and eroding machines, VOLLMER will also present its digitalisation initiative, which enables the digital exchange of data between machines and opens the door to the www.grindsurf.com world of Industry 4.0. Trade fair visitors will be able to see the VGrind 360 carbide tool AMB 2018 PREVIEW 4 grinding machine in action, alongside the VPulse 500 wire erosion machine, the QXD 250 disk erosion machine as well as various SPECIAL REPORT - AZ SPA 30 automation solutions. -
Design and Fabrication of Internal Grainding Attachment in Lathe
Vol-6 Issue-1 2020 IJARIIE-ISSN(O)-2395-4396 DESIGN AND FABRICATION OF INTERNAL GRAINDING ATTACHMENT IN LATHE PRESENTED BY AGASH.P ME (CAD) LECTURER DEPARTMENT OF MECHANICAL ENGINEERING (TOOL&DIE) A.K.T MEMORIAL POLYTECHNIC COLLEGE, KALLAKURICHI ABSTRACT Everyone knows a tool post grinder is one mighty handy item to have as an addition to a lathe, however, if you ever priced one, you know they run in to some serious amounts of money. So, with this in mind, I set off to build my own. Pictured below is the outcome of that project. I have to say the tool post grinder works extremely well. By varying the pulley sizes I can get a high end speed of over 10,000 rpm if needed. The only change I would make is to have a totally enclosed motor to keep out the grit. Our project is design and fabrication of Multi Use Tool Post Grinder. It is used to grind the machining surfaces to super finish and accuracy. It can be used as an internal and external Grinder by fixing the attachment on the Carriage of a center Lathe. The principle parts of this attachment are main body, Spindle shaft, bearings, rope pulley and grinding wheel etc. Keywords: design, 2d diagram cad, grinding attachment 1. INTRODUCTION Generally some components in engineering field require high surface finish and accuracy. For example a cylindrical part requires high finish inside the bore or outside the body; it requires cylindrical grinding machine and center less grind machine. The above machinery cost will be more, and also unless we have lot of similar jobs, we equity keep these costly machines idle.