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Device for contouring blocking burrs for a deburring tool

  • US 5,174,700 A
  • Filed: 07/11/1990
  • Issued: 12/29/1992
  • Est. Priority Date: 07/12/1989
  • Status: Expired due to Fees
First Claim
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1. Device for contouring blocking burrs comprising:

  • a deburring tool;

    means for rotating said deburring tool at a variable rotary speed;

    a support for said tool,a pneumatic jack connecting said tool to said support, said jack having a cylinder carried by said support and a rod slideably mounted in said cylinder, said rod carrying a piston at one end and said tool at another end,said cylinder enclosing a chamber having a volume, said piston partly defining said volume and sliding in said cylinder to increase or decrease said volume;

    means for moving said support along said burrs so that said tool is pressed onto the burrs when said volume is increased and retracted from said burrs when said volume is decreased;

    a constant pressure gas source and deflation orifice adapted to be connected to said chamber in said cylinder;

    a control circuit operatively associated with said chamber for connecting said chamber either to said gas source or to said deflation orifice; and

    a first sensor connected to said control circuit for measuring a quantity representative of the rotary speed of said tool,whereby said control circuit connects said chamber to said gas source when said quantity indicates a rotary speed above a predetermined threshold and connects said chamber to said deflation orifice when said quantity indicates a rotary speed below said threshold.

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