Page 44 - MTW November 2022 Digital Magazine_R1
P. 44

TECH INNOVATION





           being clamped properly is due to the   there is no workpiece or there is a gap due   such as the power wing (PW) series, pull
           accumulation of chips on the jaws or   to improper seating or clamping, the air   lock (PU/PUB/LU) series and finger (FG)
           on the locator seating area. Some chips   will leak through the hole or gap, resulting   series. These chucks are characterized by
           may be left on these surfaces even after   in pressure loss. This difference in pressure   a pull-back function which is an essential
           cleaning. There are other reasons as   will be sensed by a pressure switch,   feature for air sensing to work. These
           well, such as loading errors due to the   generally called the  ‘air catch sensor’.   chucks pull the workpiece towards the
           difference in clamping dimensions, the   This air catch sensor will detect the gap   locator, ensuring positive butting.
           tilting of the workpiece due to its self-  between locator and the workpiece. If   Kitagawa M-Series and Y-RE-Series
           weight just before clamping with a large   gap is more than the set value, it will   cylinders are available with built-in
           jaw- stroke chuck or due to complex   send the feedback to the machine about   rotary joints to pass the air from a static
           shapes of workpieces and so on.    the improper clamping. We can set the   pneumatic module to a work holding
                                              allowable gap value as low as 10 microns,   solution rotating at a high speed. These
           Air seating confirmation           based on the workpiece requirement.    cylinders also have proximity switches
           An ideal air seat confirmation arrangement   For the air seating confirmation system   with stroke sensing for actuation
           on the work holding device will sense   to work, we need an effective work   confirmation. We can also supply
           whether a workpiece is seated properly   holding solution, a cylinder to operate   customized air seat conformation solutions
           in the chuck or not. If there is slightest of   the work holding system, a pneumatic   with any of our other standard open
           error in seating, for instance 10 microns,   module with an air catch sensor and an   centre cylinders such as our own S, SP,
           the seat confirmation system will sense   arrangement to take the pneumatic supply   SR, SS series cylinders. These air seat
           this error and communicate it to the   to the work holding solution.   confirmation systems can be fitted with a
           machine. Seat confirmation works on the   We at Kitagawa India specialize in all   new chucking system or be retrofitted to
           principle of backpressure of the pneumatic   types of work holding solutions. We have   an existing chucking system.
           supply. Pressurized air will be supplied   an extensive range of products which are
           to the end face of the locator through a   suited for work holding solutions with   For more information,
           narrow hole where the workpiece sits. If   seating confirmation. Specifically chucks   Website: www.kitagawa.global/in












































     38     MACHINE TOOLS WORLD NOVEMBER 2022                                                     www.mtwmag.com
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