Variable Cam Timing Component Deburring

Case B

JOBS NO. 171 & 223


A manufacturer of a variable cam timing component needed a high volume deburring solution. This machine had to be robust and capable of processing hundreds of thousands of pieces within a short cycle time per piece. Brushing could be done without coolant, but an automatic wash down system was requested. This customer had a paint color requirement.


Machine Bases

In order to process high quantities with multiple ops in a small footprint, a medium sized rectangular base is used. A clearance at the machine’s roof allows for a 2” index shaft to move work spindles from op to op.
3/8”-1/2” steel plate walls must be used to support any heavier assemblies that will be under pressure/performing deburring ops.
The wet application’s base must be welded water-tight.

Processing (Machine B)

  • Work pieces arrive via customer conveyor system and are transferred onto the machine conveyor. After passing through a series of pneumatic feed escapements, the work arrives at a retractable load nest. A pneumatic linear slide assembly brings a rotary load arm into place surrounding the work piece. A custom-tooled two-jaw gripper clamps the OD of the work piece and is lifted from the conveyor by the linear slide. A pneumatic rotary actuator brings the incoming work to the load spindle while taking a finished work piece back to the conveyor to exit.
  • Three custom-tooled spindle assemblies using two-jaw grippers as work holding are installed into a 1” aluminum dial plate. A CAMCO three-station indexer unit located on the machine’s roof brings each spindle to one of two work stations and the load/unload station with excellent repeatability.
  • Spindles are independently driven at each cut station by a cushioned drive gear assembly. This gear is directly driven by a high torque A/C motor and is always engaged, meeting the corresponding gear on each spindle as it is indexed in place.
  • Once loaded, the work is indexed to two 6”-8” diameter nylon abrasive cup brushes. Brushes are directly driven by large frame D/C motors on tool adjustable assemblies. Brushes travel along a vertical rail system with fine adjustments to cut feed/retract controlled by an intelligent linear actuator utilizing Auto Amp Compensation.
  • After station 3 brushing is complete, the work is indexed back to load where it is brought back to the conveyor by the rotary loader arm.

Safety/On Site Requirements

  • An all FESTO pneumatics system was required by this customer. CDMC is willing to accommodate a wide range of component requirements.
  • Coolant piping and nozzles routed to the work area can be used to aid in cutting, for wash-down of critical components or both. In most wet applications, a sprayer system is also used at the machine floor to wash debris toward the filtration system along with a manual wash down for PM. Cleanliness implementations such as magnetic separation, oil skimming and bag filtration are available upon request.
  • CDMC is willing to comply with customer paint specs.
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