TACT MEASUREMENT DEVICE FOR ACTUATOR AND SENSOR SIGNAL DETECTING DEVICE

• US 20160003640A1
• Filed: 06/09/2015
• Published: 01/07/2016
• Est. Priority Date: 07/07/2014
• Status: Active Grant

• Current Assignee: SMC Corporation (Alamo Group Incorporated)
• Original Assignee: SMC Corporation (Alamo Group Incorporated)
• Inventors: Ozaki, Norimasa, AKI, Tomohiko, Goto, Takaaki, Shinozaki, Takahiro
• Granted Patent: US 10,119,836 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F15B 15/2861 using magnetic means
• CPC Class Codes: F15B 19/005 Fault detection or monitoring
• CPC Class Codes: F15B 2211/6336 representing a state of the output member, e.g. position, speed or acceleration
• CPC Class Codes: G01D 5/14 influencing the magnitude of a current or voltage
• CPC Class Codes: G01D 5/145 influenced by the relative movement between the Hall device and magnetic fields see G01R33/06

Abstract

A detecting unit detects a first output signal and a second output signal, which are output by a first sensor and a second sensor disposed on an actuator, and outputs a first detection signal and a second detection signal to a measurement unit. Based on the first detection signal and the second detection signal, the measurement unit measures a tact time taken for a piston to move from one end to another end of a movement range.

Claims

1. A tact measurement device for an actuator, which measures a tact time taken for a movable member of the actuator to move from one end to another end of a movement range, comprising:

a detecting unit that detects a first output signal that is output responsive to detecting, by a first sensor, that the movable member is positioned at the one end of the movement range, the first sensor being disposed on the actuator, and outputs a first detection signal, and that further detects a second output signal that is output responsive to detecting, by a second sensor, that the movable member is positioned at the other end of the movement range, the second sensor being disposed on the actuator, and outputs a second detection signal; and

a measurement unit that measures the tact time taken for the movable member to move from the one end to the other end of the movement range, based on the first detection signal and the second detection signal.

2. The tact measurement device for an actuator according to claim 1, wherein the detecting unit comprises a first detecting unit and a second detecting unit;

the first detecting unit comprising;

a first output signal detecting unit that detects the first output signal and outputs the first detection signal; and

a first detection signal output unit that outputs to the measurement unit the first detection signal that was output by the first output signal detecting unit; and

the second detecting unit comprising;

a second output signal detecting unit that detects the second output signal and outputs the second detection signal; and

a second detection signal output unit that outputs to the measurement unit the second detection signal that was output by the second output signal detecting unit.

3. The tact measurement device for an actuator according to claim 2, wherein:

the first detecting unit comprises a first connector configured to detachably mount the first output signal detecting unit to the first sensor that is disposed on the actuator; and

the second detecting unit comprises a second connector configured to detachably mount the second output signal detecting unit to the second sensor that is disposed on the actuator.

4. The tact measurement device for an actuator according to claim 2, wherein:

the first detecting unit comprises a marker that indicates an attachment direction with respect to the first sensor disposed on the actuator; and

the second detecting unit comprises a marker that indicates an attachment direction with respect to the second sensor disposed on the actuator.

5. The tact measurement device for an actuator according to claim 3, wherein:

the first connector comprises a first gripping member that grips the first sensor disposed on the actuator; and

the second connector comprises a second gripping member that grips the second sensor disposed on the actuator.

6. The tact measurement device for an actuator according to claim 3, wherein:

the first connector comprises a first projection that is fitted into the first sensor disposed on the actuator; and

the second connector comprises a second projection that is fitted into the second sensor disposed on the actuator.

7. The tact measurement device for an actuator according to claim 3, wherein:

the first connector comprises a first adhesive that is adhered to the first sensor disposed on the actuator; and

the second connector comprises a second adhesive that is adhered to the second sensor disposed on the actuator.

8. A sensor signal detecting device comprising:

an output signal detecting unit that detects a signal output by a sensor, and outputs a detection signal;

a detection signal output unit that externally outputs the detection signal that was output by the output signal detecting unit; and

a connector configured to detachably mount the output signal detecting unit to the sensor.

9. The sensor signal detecting device according to claim 8, further comprising a marker that indicates an attachment direction with respect to the sensor.

10. The sensor signal detecting device according to claim 8, wherein the connector comprises a gripping member that grips the sensor.

11. The sensor signal detecting device according to claim 8, wherein the connector comprises a projection that is fitted into the sensor.

12. The sensor signal detecting device according to claim 8, wherein the connector comprises an adhesive that is adhered to the sensor.