To cut 6 gear teeth using simple indexing and an elliott dividing head with hole circles of. To use it, enter the worm ratio for the table at the top and the number of teethdivisions required. Dividing head calculator download program to help mechanical. All you need to do is enter a value for divisions and click the calculate. Enter 2 numbers and press the button to get the division result. The indexing head is the operation of dividing the periphery of a workpiece into any number of equal parts. Looking for 901 dividing head chart the hobbymachinist. Rather, it offers a comprehensive set of facilities for performing a wide range of dividing tasks in the taig lathe, or in conjunction with its big brother, the. All you do is enter your specifications and click the update button to calulate total losses for the system. Electronic dividing head using the arduino home model engine. Dividing plates can be used to create bolt circles, gears, polygons, and so on. Dividing head calculator is a simple program to help mechanical engineers and.
Bs0 dividing head set with 5 chuck, tailstock, dividing plates, and more. I have written a program for the workshop shopcalc and one of the things it will calculate is dividing head solution in several ratios of the worm drive including 901. If now attempting 9 divisions 40 degree spacing and using a dividing head with a 40. For example, a dividing head fitted with a 51 hole indexing ring can divide a circle into 7 and one half segments 7 segments of 48 degrees and. Dividing two numbers to get the product in pounds, shillings and pence. Indexing heads are usually used on the tables of milling machines. Excel spreadsheets for dividing heads the home machinist. Dividing head calculation spreadsheet article reprints. A 24 hole plate is also fitted for quick indexing of simple numbers. Dividing is not about moving through a certain angle but is more about dividing a whole circle into a specific number of parts. An indexing head, also known as a dividing head or spiral head, is a specialized tool that allows a workpiece to be circularly indexed. The indexing head can also be used for producing a square or hexagonal bolts, cutting splines on shafts, fluting drills, taps, reamers, etc.
Apr 18, 2017 dividing head calculator is a simple program to help mechanical engineers and students. All you have to do is to set a counter to zero at the home position you want to return to and incrementdecrement it for every step you move dependant in direction. Dec 30, 2017 i want to set up the 1910 hendey lathe to cut metric threads. Dividing head calculator is een programma voor mechanische. Add a 40 tooth gear on the spindle and make sure you have the key back in place. Using dividing plates with the rotary table dividing plates allow you to precisely divide a circle into a number of divisions or degrees. I entered all of them in, but couldnt seem to save it. Dividing head calculator is a simple program to help mechanical engineers and students. The vertex bso dividing head comprises of head stock, tail stock, set 3 dividing plates and chuck back plate both the phosphor bronze worm and the spindle are hardened and ground. Formulae for calculating dividing head engineers edge. Welcome aboard, you need to find an old machinest and get your hands on an older copy of machinerys handbook.
Dividing head calculator is a simple program to help mechanical. Designed to help his father with the calculations to. My current job is developing manufacturing software. Formulae for calculating dividing head engineers edge forum. 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. Jul 14, 2017 how to use the dividing head and calculations pogany koppany. The divhead program on my website will calculate turns and holes for any dividing head. A comprehensive dividing capability for the peatoltaig lathe. The worst suggestion of your lifetime may be the catalyst to the grandest idea of the century, never let suggestions go unsaid nor fail to listen to them. How does one save the program and store the values for my dividing head. The spreadsheet has been produced by christopher taylor.
Used to divide circumference of workpiece into equally spaced divisions when milling gear teeth, squares, hexagons, and octagons. Make three blank plates that will fit on your head or table. Referring now to photograph 10, showing an addition pair of gears added to my basic dividing head photograph 2. One of the more important attachments for milling machine. However, there are a couple of different tactics you can implement to help you prove the value of office productivity tools. Get dividing head calculator alternative downloads.
All you need to do is enter a value for divisions and click the. This item will be shipped in multiple packages using multiple carriers. Designed to help his father with the calculations to cut varying number of toothed wheels. A dividing head is a tool that is used to divide a circle into equal divisions. For a rotary table or dividing head, you dont need a home switch. A dividing head is indispensable for machining gears on a milling machine. Shipping advertised is an estimate as we are not sure how accurate the shipping calculator will be with having multiple packages, it calculates one package and we add additional monetary amount to guess at covering the. Also includes a program to determine which hole plates youll need to generate all the divisions up to some input number. Commercially available dividing heads, even from the economy end of the market, are likely to be too expensive for the vast majority of home workshop owners, especially taking into account the limited use it will probably get. Using a dividing head and making one for your lathe by jim sapp using the standard dividing head. The ratio below describes how many turns of the handle makes the table rotate one full revolution. Dividing head calculator 40 to 1 ratio spreadsheet. For other variants of dividing head, a custom option exists that allows you to enter the worm ratio and the available hole counts.
As will be seen in the description that follows, the result is not just another dividing head or dividing attachment. How to calculate workplace productivity smartsheet. Download dividing head calculations software for free windows. This is an online calculator to calculate what indexing plate to use and number of holes. Show all calculations and complete the statement at the bottom. Another way to make the calculation is to multiply the number of. Depending on your internet speed, this calculator may take a minute or two to load. John rothen wanted software for computing turns and holes on a dividing head with a nonstandard worm gear ratio. Plate the number of holes in the selected circle on the required dividing indexing plate. Indexing plate calculator indexing plate generator mig. Machining formulas and online calculators below is a degrees formulas and degrees conversions calculator note.
This is an online calculator to calculate what indexing plate to use and number of holes to skip for a given number of divisions. In order to do that a 127 tooth gear is required in the threading gear train. For anybody who does have a dividing head, there was an interesting article dividing on the lathe written by. Holes how many additional holes to rotate the head per division.
With just your dividing head or rotary table you can make a plate with a hole circle that is every bit as accurate as the worm in that head or table. Steve bedairs 9 x 20 lathe site gladewater, texas 122003. There is no single formula that will generate the roi from a new tool. Also used to rotate workpiece at predetermined ratio to. If that is the case, refer to the item below changing the number of indexing holes.
Have you ever tried to lay out a circle divided into say, 37 equal parts. Download for free or just see what shopcalc can do. Download free dividing head calculator by stephen oreilly v. The milling of spirals or helical cutting action requires the. Im glad you found it useful, and figured out how to customise it for your dividing head. The divide head and rotary table are a device used to rotate the work piece around a third machine axis, this is usually referred to as the c axis and is commonly used on milling machines or borers to provide the ability to easily create accurate single or multiple machining operations around a component. Quickly and easily calculate the indexing plates and hole positions for indexing dividing heads. May 28, 2015 i have written a program for the workshop shopcalc and one of the things it will calculate is dividing head solution in several ratios of the worm drive including 901. Above all, you cannot sell the software or make any charge for it whatsoever. I wrote a program that can be customized via a data file for any dividing head configuration. Calculating the value of office productivity software isnt as clear cut as calculating productivity for employees or your company. While cutting the spur gear, an equal spacing of the teeth on the gear blank is performed by indexing. Dividing head calculator is included in office tools. On the first sheet, enter the available hole plates across the fifth row of the sheet this information will be automatically copied to.
On one of these plates, mark off 71 holes using any approximate method you wish. Reading through this thread reminds me of my apprenticeship days where i had to use a dividing head and index plate in order to make some weird gears and do the calculations for linking a dividing head to a leadscrew for machining helical slots. Download dividing head calculations software for free. Using a dividing head and a vertical milling machine to cut flats on a shaft. Dovetail measuring calculator, calculate the dimensions of dovetail rails both inside and outside. You supply it via a text file the gear ratio and a list of the hole plates you have, then, at run time specify the number of divisions required and it returns the turns and holes. Income tax calculator is a program that estimates your federal income tax for the years 20002016 and finds your. Dividing head calculator, calculate the index plate and pin hole patterns needed for mill machine dividing heads. These two gears amount to a reduction in angular movement between the dividing device, a gear in this case, and the dividing head spindle, in the same way as a worm and wormwheel does. Designed to help my father with the calculations to cut varying number of toothed wheels.
Degrees how many degrees the work will rotate per division. All i can say is this thank gawd i dont have to do this anymore boris. On the first sheet, enter the available hole plates across the fifth row of the sheet this information will be automatically copied to cells on the second sheet. Dividing head calculator 40 to 1 ratio spreadsheet physics. Before i did that spreadsheet, i had considered actually writing an application to do the job that the spreadsheet now does. Dividing heads dividing the circle as one might expect from the name, the dividing head is all about dividing. Dividing head calculator free version download for pc. Your dividing head may be equipped with dividing rings having different numbers of holes to those shown here. Vertex bs0 dividing heads from chronos chronos engineering.
Indexing heads millers tooling, brisbane, australia. A calculator for converting any number of degrees to circle divisions is also provided. I do not have a 127 hole index plate so i thought id. Therefore one complete turn of the index crank equals. Dividing head calculator free download at rocket download. A pattern of drilled holes radially or on the face of the workpiece may be produced with exact. Mar 03, 2020 dividing head calculator is a simple program to help mechanical engineers and students. How to use the dividing head and calculations youtube. The dividing head calculator is based on a standard 40. An application to create dividing head tables model engineer.
Dividing head one of the more important attachments for milling machine. On the second sheet, change the worm gear ratio to suit your dividing head, on the first sheet change the degrees per turn to suit your dividing head. The program i have written will calculate the number of stepper steps need for each division and keep track of the position im on. Designed to help his father with the calculations to cut. Included in the web machinist software for windows based computers is the dividing indexing head calculator. Designed to help his father with the calculations to cut varying. Drill peck deep hole drilling calculators, including lathe and. This calculator can be used for both rotary tables and indexing heads. 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. The indexing feature helps prevent errors during the repetitive adjustments required in indexing work.
It will be the last word best advice on dividing heads. They can be right or left handed depending on which end you have it assembled. I am still working on the calculations as i have noticed a few anomalies. Then select a pump based on flowrate and total head loss requirements. This spreadsheet allows you to easily identify a suitable number of holes and turns for dividing with any indexing head. Office tools downloads dividing head calculator by stephen oreilly and many more programs are available for instant and free download.
A dividing head has perforated plates and also a worm gear typically 401 or 601 ratio that will allow a much greater range of divisions. There is an option to print a chart of hole plates, turns and holes for use in your shop. Now you have to gear the the dividing head spindle to the dividing head worm. Top 5 workfromhome software to run video conferences. I am not refering to degrees or radians, so dont think in those units. This calculator allows you to figure out the head loss for pump selection. Indexing headdefinition, methods in detailall formula. Universal dividing indexing head calculator for android. This spreadsheet contains calculators for dividing heads and rotary tables.
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