System for Remotely Deactivating the Operation of a Machine

• US 20140148940A1
• Filed: 11/29/2012
• Published: 05/29/2014
• Est. Priority Date: 11/29/2012
• Status: Abandoned Application

• Current Assignee: Thermwood Corporation
• Original Assignee: Thermwood Corporation
• Inventors: SUSNJARA, Kenneth J.
• Application Number:
  US13/688,433
• Publication Number:
  US 20140148940A1
• Time in Patent Office: Days
• US Class Current: 700/177
• CPC Class Codes: G05B 19/4063 Monitoring general control system G05B19/4062 takes precedence
• CPC Class Codes: G05B 2219/33192 Radio link, wireless
• CPC Class Codes: G05B 2219/50198 Emergency stop

Abstract

A system for remotely deactivating the operation of a machine tool responsive to an adverse operating condition of the machine, including an electrical circuit disposable in the vicinity of the machine, including a relay, interconnecting a voltage source and the control unit of the machine, functional to pause the control of such machine, a receiver disposable in the vicinity of the machine, responsive to a R-F signal operative to actuate such relay, and a portable device displaceable relative to the vicinity of the machine for selectively transmitting an R-F signal to such transmitter for actuating such relay.

Claims

1. A system for remotely deactivating the operation of a machine tool responsive to an adverse condition in the operation of said machine, comprising:

an electrical circuit including an electrically actuated relay interconnecting a voltage source and an input port of a control unit of said machine, functional upon closure of said relay to pause the operation of a sad machine;

a receiver responsive to an R-F signal operative to electrically actuate said relay; and

means displaceable relative to said electrically actuable means for selectively transmitting said R-F signal.

2. The system according to claim 1 wherein said adverse condition is one of a malfunction of a tool, the displacement of a tool and means for retaining a workpiece.

3. The system according to claim 1 wherein said transmitting means is portable.

4. The system according to claim 1 wherein said transmitting means has a range of 100 feet.

5. The system according to claim 1 wherein said transmitting means comprises a hand-held device.

6. The system according to claim 1 wherein said relay is disposed in a control unit of said machine.

7. The system according to claim 6 wherein said receiver is disposed on said machine.

8. The system according to claim 1 wherein said receiver is disposed in a module separate from said machine.

9. The system according to claim 8 wherein said relay is disposed in a control unit of said machine.

10. The system according to claim 8 wherein said relay is disposed in said module.

11. The system according to claim 1 wherein said signal is coded and said receiver includes a decoder.

12. The system according to claim 1 wherein said machine is a CNC machine.

13. The system according to claim 1 wherein said machine is a CNC router.

14. The system according to claim 13 wherein said adverse condition is one of a malfunction of a routing spindle, a servo drive motor and a means for retaining a workpiece on a worktable thereof.

15. The system according to claim 13 wherein said transmitting means is portable.

16. The system according to claim 13 wherein said transmitting means has a range of 100 feet.

17. The system according to claim 13 wherein said relay is disposed in a control panel of said machine.

18. The system according to claim 13 wherein said receiver is disposed in a module separate of said machine.

19. The system according to claim 18 wherein said module includes said relay.

20. The system according to claim 19 wherein said signal is coded and said module includes a decoder.