Integrated system for controlling axes of industrial machinery

• US 20050253547A1
• Filed: 10/23/2002
• Published: 11/17/2005
• Est. Priority Date: 03/22/2002
• Status: Abandoned Application

• Current Assignee: QEM Incorporated
• Original Assignee: QEM Incorporated
• Inventors: Cazzavillan, Adriano, Zatton, Dario
• Application Number:
  US10/507,966
• Publication Number:
  US 20050253547A1
• Time in Patent Office: Days
• US Class Current: 318/575
• CPC Class Codes: G05B 19/4144 characterised by using multiplexing for control system
• CPC Class Codes: G05B 2219/34236 Multiplex for servos, actuators
• CPC Class Codes: Y02P 80/40 Minimising material used in manufacturing processes

Abstract

An integrated system for controlling the axes (A1, A2) of industrial machinery, in which said axes (A1, A2) are actuated by actuator means (AN, AZ, AZ1, AZ2), which apply a force so as to determine a displacement in space; at least one motor (M) and at least one transducer (T) suitable for converting physical magnitudes into electrical signals which can be used by a control logic unit (LC) and/or by the aforementioned actuator means, in order to carry out the effect of the motion commands given by the motor (M) to each of said axes (A1, A2). In particular, each motor (M) is connected to at least one interface (DMA1, DMA2) for connection to an actuator device (AML) and said interface (DMA1, DMA2) foresees means suitable for supplying or not supplying energy to the motor (M) according to that which is requested by said actuator device (AMU) and means for the management and selection (LSA) of each axis (A1, A2).

Claims

1. Integrated system for controlling the axes (A1, A2) of industrial machinery, said axes (A1, A2) being actuated by actuator means (AN, AZ, AZ1, AZ2), which apply a force so as to determine a displacement in space, with at least one motor (M), suitable for giving motion commands to at least one of said axes (A1, A2), also applied to said axes (A1, A2), characterised in that each motor (M) is connected to at least one interface (DMA1, DMA2) for connection to at least one actuator device (AMU), said interface (DMA1, DMA2) foreseeing means suitable for supplying or not supplying energy to the motor (M) according to that which is requested by said actuator device (AMU), said actuator device (AMU) also foreseeing means for the management and selection (LSA) of each axis (A1, A2), through said interface (DMA1, DMA2).

2. Integrated control system according to claim 1, characterised in that said management and selection means (LSA) send and exchange with said axes (A1, A2) and with at least one control logic (LC) of the entire management, measurement and supply information system by means of at least one communication bus (MB, CB, TB, FB).

3. Integrated control system according to claim 2, characterised in that said interface (DMA1, DMA2) communicates with said actuator device (AMU) by means of functional coordination buses (CB), transmission buses (TB) for the information coming from transducers (T), suitable for converting physical amplitudes into electrical signals, and supply buses (MB), suitable for supplying energy to said motor (M), said communication buses (CB, TB, FB, MB) being foreseen to conduct information signals and/or to provide a supply to the system.

4. Integrated control system according to claim 1, characterised in that said actuator device (AMU) is an intelligent electrical actuator device, suitable for automatically configuring its own way of operating in relation to the type and size of the motor (M) connected to said specific interface (DMA1, DMA2).

5. Integrated control system according to claim 1, characterised in that said actuator device (AMU) can integrate switching means managed through a “

multiplexing”

technique for commanding many motors (M).

6. Integrated control system according to claim 2, characterised in that said communication buses (FB, CB, TB, MB) are managed by said multiaxis actuator device (AMU), which controls the selected motor (M) in current, speed and position, through a plurality of regulators (RP, RV, RC).

7. Integrated control system according to claim 1, characterised in that said actuator device (AMU) can be attached to the outside or on the machine, near to the axes (A1, A2) which it has to govern.

8. Integrated control system according to claim 1, characterised in that said actuator device (AMU) carries out the supervision and management of the alarms which can intervene during the dynamic operation of the axis (A1, A2), or which come both from the diagnostics of said interface (DMA1, DMA2) and from possible other auxiliary signals available as input and/or output in its hardware structure.

9. Integrated control system according to claim 1, characterised in that, if the number of productive axes is substantial with respect to that of the auxiliary axes, it is possible to equip a piece of machinery with a number of said actuator devices (AMU) which is comparable to the number of productive axes, in order to govern both the productive and auxiliary axes with them.

10. Integrated control system according to claim 1, characterised in that it is possible to synchronise and interpolate the trajectories of many productive axes, through an integrated management in the actuator devices (AMU1, AMU2, AZU3) of a technique of synchronisation of position between an axis of the “

master”

type and an axis of the “

slave”

type and by appropriately using at least one of said communication buses (FB, CB, TB), to transmit the position of said axis of the “

master”

type in a determinate manner to said actuator device (AMU2, AMU3) which manages said axis of the “

slave”

type.

11. Integrated system for controlling the axes (A1, A2) of industrial machinery as substantially described and illustrated in the attached drawings and for the specified purposes.