Colombo Filippetti - Indexing Rotary Tables - IR Medium Series
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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; thorough and regular inspection of the parts throughout the...

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 theoretical and practical viewpoints. This...

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" stations consistent with any...

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 and anchor structure and...

IR401 IR601 IR801 > 3.2. - 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, is...

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 safety factor is...

TABLE CODE Statictorque Dynamic torque (at output) cycles/min Coeff.ofaccel. Coeff.ofTransm. IndexAngle Dwell Angle Mu [daN m] No. and type of rollers SeriesNo. of stations Ms S Bհ Bp [daN m] 15 25 50 75 100 cicli/1 cicli/1 cicli/1 cicli/1 cicli/1Coeff.ofvelocity Cv Ca K IR 201 4.1 4.0 3.83.43.83.46-12H IR 251 12.3 12.2 12.012.011.610.36-16H IR 301 > 224.4 224.4 224.4224.3224.2223.98-35H IR 601 366.2 366.2 366.1365.7365.0364.616-35H IR 801 864.3 864.3 864.4863.8863.8863.3 16-52H On demand INDEXING TABLE with special movement can be supplied. The IR Rotary table denoted by (*) with a...

IR201 IR251 IR301 IR401 IR601 IR801 Fig.23 Admissible radial loads and torque on the input shafts of the INDEXING TABLE. > Additional Ballbearing on thecamshaft instandard versions

IR-201, IR-251, IR-301, IR-401, IR-601, IR-801 series INDEXING TABLES can be supplied in the following versions: VS = Standard Version VL = Version with long shaft pre-set for small reduction gear coupling (page. 27) VL1 = Version with long shaft pre-set for large reduction gear coupling (page. 27) VX = Non standard Version VR = Version with reduction gear VRP = Version with reduction gear pre-set for motor coupling VRM = Version with reduction gear and motor VRA = Version with reduction gear and self-braking motor VMW = Version with reduction gear and motorised speed variator VAW = Version...

4.4 OVERALL DIMENSIONS IR 201 For drilling of therotary plate see pag.24 Fig. 26 NOTES: > ֕ Directions of rotations as shown by arrows. The input shaft feather key is in the position shown on the figure when the table is halfway through rest time. Օ The securing holes on the indexing plate are optional and executed by request. The anchoring holes of the table situated on faces C-D, are optional and executed by request. 12 size="-1">

Standard version The table is supplied without centre column. Locating diameter above 68 H7 [mm] ֖ locating diameter below 55 H7 [mm]. Diameter 68 H7 rotates with the indexing plate. Rotary plate with standard drilling. (page 24 ) > Fixed through centre column. Anchoring is not foreseen in this column. Locating diameter above 68 H7 [mm] ؖ locating diameter below 55 H7 [mm]. Diameter 68 H7 rotates with indexing plate. Column through hole ؘ 25 [mm]. Rotary plate with standard drilling. (page 24) > Fixed projecting centre column 32x25 [mm]. Centre through hole 18 [mm]. Locating above 32 h8...