In the latter case, there is an advantage in allowing the dividing head to be mounted with its axis at lathe centre height, as this makes. The indexer can then be strapped onto it with this bellows coupling, and the cnc rotary table is now able to directly drive the lathe. I also discover the bozo move that i made, but am quick to employ a revision. Hemingway kits versatile dividing head and accessories. I also discover the bozo move that i made, but am quick. May 18, 2010 once you get out of the area of straight cut spur gears you pretty well have to have a milling machine that you can gear a dividing head to the lead screw in order to mill a helix. Compare wishlist bs1abc spare vertex dividing plates for dividing head. The dividing head is also known as book 6 from the best selling 7 book series, build your own metal working shop from scrap. Finding a dividing head that will fit in that space is difficult, so i decided to design and build my own.
The semiuniversal dividing head is just like the plain dividing head but the spindle can be tilted. Make your own reamers and learn how the master machinist of 100 years ago made his handful of tools do any job he was assigned to do. A dividing head is an accessory for accurately and repeatably rotating a piece of work through a small angle, for example to rotate a gear blank by the angle of a single tooth. Feb 28, 2016 this model of a dividing head is build out of a combination of primitive shapes and gears. But for spiral teeth, and for twist drills and spiral milling cutters, the spindle must be rotated by the change gears. Dividing head lathes, mills, workshop this auction is for a dividing head cash on it has a myford nose thread and a mt2 taper with drawbar. Universal dividing head,dividing head,rotary table,indexing. It can simply be printed off and used as a class room aid as my tutor requested or as a basis for a classroom project. With what i have, the divisions that are with the head 2,3,4,6,8,12,24 and it adjusts to the ddivision i want say set at 8 i can then ratchet the chuck but i am not sure what i have there. Gingery dividing head machining the worm gear p1 youtube. We set up the dividing head and start drilling out the almost 600 holes in all of the plates, which is the last part needed for the dividing head to be used. The dividing sector plate and micro attachment are interchangeable between both machines, as are the dividing plates which have the following counts. The arm extending out from the body to the dividing disc looks a little long to me. Thus a dividing head that is designed to be mounted on the vertical slide can equally well be mounted on the cross slide.
A welding project to build a compact, portable, 15 bending brake using standard structural steel and common hardware items. Ideal for a milling machine or the myford ml7, super 7 and ml7r lathes. Indexing heads dividing head an indexing head also called a dividing head is a machining tool that allows a workpiece to be rotated, that is, easily and precisely rotated to any angle or circular division. The use of a dividing head, a rotary table, or working out the x and y coordinates for use with a compound table. The milling of spirals or helical cutting action requires the. Machine accessories, vice, dividing head, vise, collet chuck. The mandrel slips in the rear of the lathe, and then a cap screw pulls the expander back, and hey presto, its grips the inside of the bore. Jul 28, 2017 this video deals mainly with the finish turning on the new steel underside of the table. From here the skull is divided into thirds, and each dividing line falls on a major landmark as follows. Onethird of the way down from the widows peak, the bony prominence called the eyebrow or superorbital ridge bulges out above the eye socket. Im getting close to finishing a dividing head that is pretty close to the unit prescribed in gingerys dividing head and deluxe accessories. Mar 20, 2000 thus a dividing head that is designed to be mounted on the vertical slide can equally well be mounted on the cross slide. This model of a dividing head is build out of a combination of primitive shapes and gears.
Air tapping machine, electric tapping machine,drill grinder, end mill grinder, screw tap grinder, chamfering machine, cutter grinder, tool grinder, saw blade sharpener, lathe tool grinder, ejector pin cutting off. We finally have some nice weather, furnace is tuned up and running, and the metal is flowing. Indexing heads are usually used on the tables of milling machines. A dividing head anyone can build the hobbymachinist. Index plates also appear on ebay from time to time, useful to have as they may extend your set. A cnc dividing head may be used in this manner on either manual or cnc machinery. Maybe bodging would be a better word well i made a start a while ago on my version of the lh sparey dividing head as i need to remake the h. Cut a strip of paper the width of your plate, longer than the circumference of the plate. Dividing head for sale in uk 16 used dividing heads. The goal of this project is to build a dividing head from an inexpensive spin indexer and parts borrowed from the gingery dividing head project. Vertex bs0 dividing head with chuck product details. The dividing head is mounted on a master table with a common axis. Such projects could be the design and build of their own dividing head any other applicable machinegear box the tutor deems worthy.
Gingery dividing head p10 indexing disks and first job. Dividing heads come complete with 3 dividing plates 1 tailstock 1 chuck back plate 1 centerdog and 1 center. These high quality dividing heads are made with demanding care for precision gear cutting sharpening milling cutters reamers etc. Samir malhotra1 and amrit pal singh2 1department of pharmacology pgimer, chandigarh 2super specialty division, indswift lab, chandigarh correspondent author, email. Today we start casting out the parts for the gingery dividing head and get the first batch of castings. An indexing head, also known as a dividing head or spiral head, is a specialized tool that. I was researching how to drive a spur gear with a worm cut on. Accessory plates provide indirect dividing in any number from 2 to. In this case the dividing plate is always permanently fixed in position. Well the main concern will be the centre height of the dividing head if you intend to use it on a lathe. I believe hemmingway can supply dividing head kits. The vertex dividing head is a tool that is used to divide a circle into equal spacers. A dividing head design by sparey these images show the dividing head designed by a mr sparey and illustrated in the book using the small lathe by l. Once you get out of the area of straight cut spur gears you pretty well have to have a milling machine that you can gear a dividing head to the lead screw in order to mill a helix.
Front index plate with locking pin or locating slot in the index plate having 24 slots holes and second slide odd no 5 slot pin and 7 slot pin spindle and other parts are hardened ground, toughened change gear are of alloy steel. The dividing head is designed for use either on the myford cross slide or the milling machine table. On the plain dividing head there is simply a fixed horizontal spindle that is rotated using a worm mechanism. I use the term dividing head loosely as this applies to any situation where the angle of rotation is controlled by holes placed round a circle, or the teeth around the periphery of a gear. Im planning to make something like this one day, but it will most likely be driven by. There was only one dividing plate when i bought it but it now has 4 plates. Indexing dividing head once one of the more important attachments for milling machine used to divide circumference of workpiece into equally spaced divisions when milling gear teeth, squares, hexagons, and octagons also used to rotate workpiece at predetermined ratio to table feed rate 2. Grizzly industrial g1053 dividing head type bs0 multi. I bought a noname japanese bs0 dividing head from rutland tool around 1975 to use on my rockwell vertical mill. Our covid19 community guidelines tips, advice and news related to trading on gumtree during the covid19 crisis. The problem with dividing heads is that they tend to be expensive. This enables the machines main cnc controller to control the indexing head just like it would control the other axes of the machine.
Manual, tilting dividing head with centre heights of. Dividing head 5inch dividing head set 3 jaw chuck indexing. George thomas versatile dividing head for sale for myford lathe. Indexing and dividing the versatile dividing head by g. Machine accessories, vice, dividing head, vise, collet chuck and rotary table. The most common use is in the accurate manufacture of splines, gears and keyways that are required to be at a specific angle to each other. Stationary power chuck dividing head tailstock fn niederhauser. In the latter case, there is an advantage in allowing the dividing head to be mounted with its axis at lathe centre height, as this makes it possible to use the head to drill radial holes in a workpiece. On the other hand, it might be nice to be able to mount the dividing head on the back edge of the mill table and still reach the input handle. View gumtree free online classified ads for dividing head and more in south africa. Indexing heads millers tooling, brisbane, australia. Most cnc dividing heads are also able to function as a full cnc axis and may be wired into the control of a cnc machine. Medicinal properties of ginger zingiber officinale rosc.
A very nicely made george thomas versatile dividing head for sale. The full kit, contains all material necessary to complete the versatile dividing head, including 2 iron castings, 2 worms, 2 worm wheels, 3 division plate blanks, 33 fasteners, 3 springs, 2 stub drills and 20 different sections of fcms, pgms, brass and silver steel bar. Hall one as it has too much slop first major tool build and as i dont yet have the luxury of casting nearly there i used. We certify the accuracy of each subject unit and perform annual calibrations for the majority of our customers. They are easy enough to modify with care to fit your head too with a little lathework. This video deals mainly with the finish turning on the new steel underside of the table. Has 3 dividing plates and the indent attachment to index the large spindle gear. Head with an easy to read, engraved main 5 degree dial, which has a feature allowing reset to any 5 degree. That is what a worm is and the gear that it runs with is a worm gear and that also has a helix angle to work with the worm. I was really constrained as to the angle i could put the input shaft. Each dividing head model is calibrated at each 5 degree increment to a specific tolerance, the closest being 5 seconds of arc. We have in stock new and used machine vices, dividing heads, collet chucks, angle plates, collets, rotary tables, clamp kits etc. The dividing head used alone finds its applications in fluting taps and reamers, in cutting wheel teeth and ratchet teeth, etc.
This dividing head is a shop soiled unused article. Sometimes they can be found reasonable on sites like ebay, but not often. Threaded spindle nose and 24 hole dividing plate with easy conversion to fast direct. Dividing head in south africa gumtree classifieds in south. The plates now cover all the usual divisions from 15 to 49. Buy dividing plates dividing head online australia hare. This project really proves the worth of a simple lathe fitted with only a faceplate and centers. Gingery dividing head machining the worm gear p2 gear cutting on the shaper duration. Dividing heads are usually used with milling machines for making gears, reamers, etc.
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