IR201 - IR251 - IR301 - IR401 - IR601 - IR801 IR TABLES
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Cuboid shaped; super strong; cast iron housing; logical range. Machined outer faces with mounting holes to 6 sides. Indexed output plate with fixed central through hole. Input shaft located in taper roller bearings. Worm gear reducer directly mounted on housing. Precise, repeating index motion Self locking dwell position ensuring no play in station. Gentle motion and very quiet drive. Bi-directional sense of motion. High load bearing capacity. Absolutely regular operation at any speed. Possibility of mounting unit in any plane. Very low maintenance. Large range of standard movements. http://www.cofil.com - E-mail: cofil@cofil.com Via G. Rossini 26 - 24040 Casirate D’Adda Bg IT Phone

INDEXING ROTARY TABLES Table of contents PAG The units of measurement correspond with System International /Severity Index SI General tolerances of manufacture are conform to UNI - ISO 2768-1 UNI EN 22768-1 Illustrations and drawings according to UNI 3970 (ISO 128-82). Method of projection of the drawings. All rights reserved. No part of this catalogue may be duplicated. COLOMBO FILIPPETTI may make any changes they feel necessary for the improvement of their products without advance notice. COLOMBO FILIPPETTI may change any market components and accessories mentioned in this catalogue as...

INDEXING ROTARY TABLES - 1 ■ TECHNICAL NOTES 1.1. - GENERAL COLOMBO FILIPPETTI "IR" series INDEXING ROTARY TABLES are mechanical units with perpendicular axes, which transform the uniform rotary motion of the input (drive) shaft into a one-way rotary indexing motion of the (driven) plate by means of a cylindrical cam drive with conjugate profiles and roller follower. A simple design, the direct transmission of motion: laws of motion with accelerations defined mathematically and tested over a large number of applications; the use of modern techniques in the projecting and engineering;...

INDEXING ROTARY TABLES 1.3. ■ THE LAWS OF MOTION Project engineers who are called on to meet the requirements of high outputs are constantly being urged to provide increasingly faster and more reliable machines and automatic systems, which therefore require a thorough examination of the handling and displacing speeds of products and equipment. For many years, Colombo Filippetti have pioneered the design, engineering and application analysis of cam systems. The result is that C-F have adopted and standardised laws of motion which have the best kinematic and dynamic properties from both...

INDEXING ROTARY TABLES In rotary applications the number of stations is generally determined by the number of operations to be performed on the piece to be machined, including the loading and unloading stations, or else by the angular distance existing between the position where the workpiece is grasped and the position where it is released. In applications for conveyors and linear carousels, the determining element is the pitch or linear distance between two subsequent stations. In applications of this sort the correct choice must fall on tables with the lowest possible number of "S"...

INDEXING ROTARY TABLES Further checks must be carried out to ascertain whether the loads which the indexing plate, and particularly the main bearing, must support are admissible. Such loads may be broken down into axial, radial, tilting and tangential loads. Since all mechanical systems are elastic: when necessary to accelerate and decelerate masses, as in the case of the INDEXING TABLES, vibrations occur. Such vibrations, unless they are controlled, can have a critical effect on bearing life of the INDEXING TABLE. Control of vibration depends in part on the rigidity of the table support...

INDEXING ROTARY TABLES 3.S. - POWER DRIVE ELEMENTS The drive components, in addition to powering the INDEXING TABLES, must ensure that the input shaft turns at steady speed. This is necessary because, as we have seen, the torque required by the INDEXING TABLE is of variable magnitude throughout each cycle. This tends to affect the input shaft speed of rotation causing throbbing during the stop go cycle. Thus, we recommend the drive components to be rigid, oversized (compared with theoretical torque requirements) and of minimal backlash. The standard and best way to power the INDEXING TABLE,...

INDEXING ROTARY TABLES If the number of stops per minute is higher, one can go up to 70 to 90 actions a minute by using a clutch-brake unit fitted between the motor and the reduction gear which, while the motor turns continuously, alternately connects and disconnects/brakes the INDEXING TABLE CAM in its low torque area. It thus becomes simple to optimise the two cycle periods, making them functional: limiting the rest period to actual machining times, and the go time to the minimum required to effect the displacement of the masses. In an application executed following these criteria a...

INDEXING ROTARY TABLES4.1 - TABLE OF DYNAMIC CAPACITIES -CTABLE11 TABLE CODE On demand INDEXING TABLE with special movement can be supplied. The IR Rotary table denoted by (*) with a complete rotation of the input shaft produce two complete cycles of the output shaft: "displacement-dwell, displacement-dwell".

INDEXING ROTARY TABLES 4.2. ■ STATIC LOAD BEARING CAPACITIES The main bearing of the IR series INDEXING TABLES is a ball bearing or a crossed cylindrical roller bearing located on an outer circumference of the indexing plate and able to support high axial, radial and tilting loads while keeping accuracy levels constant. Machining of workpieces carried out with special machine tools makes it possible to achieve consistently very high degrees of accuracy with high quality levels. Of special importance in this context is the machining accuracy of the cam profile, which is ground after the heat...

INDEXING ROTARY TABLES Radial loads on the shafts When drive power to the cam input shaft is by means of a drive which generates radial loads on the shaft end such loads must be less than the maximum permitted values shown in the graph below. In addition to the taper roller bearings, a projecting shaft supporting ball bearing is added in the position shown below. IR201