Operation method of position measuring device

• US 10,690,474 B2
• Filed: 05/23/2018
• Issued: 06/23/2020
• Est. Priority Date: 05/29/2017
• Status: Active Grant

• Current Assignee: Mitutoyo Corporation
• Original Assignee: Mitutoyo Corporation
• Inventors: Abe, Shinsaku
• Primary Examiner(s): Guadalupe-McCall, Yaritza
• Application Number:
  US15/987,439
• Publication Number:
  US 20180340763A1
• Time in Patent Office: 762 Days
• Field of Search: 33503
• CPC Class Codes: G01B 21/047 Accessories, e.g. for positioning, for tool-setting, for measuring probes
• CPC Class Codes: G01B 5/008 using coordinate measuring machines
• CPC Class Codes: G01B 5/012 Contact-making feeler heads therefor
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

To provide an operation method of a position measuring device capable of accurately and quickly designating a detection point of an object by intuitive operability, such as directly moving the probe with a hand. One aspect of the present invention is an operation method of a position measuring device that includes a measurement head having a probe for designating a detection point of a position of an object, and a moving mechanism for moving the measurement head, and acquires a coordinate of the detection point designated by the probe. The operation method of a position measuring device includes the steps of: using a terminal device including an image acquisition part and a display part to acquire an image of the probe by the image acquisition part and display the image on the display part; detecting a relative positional relation between the probe and the terminal device when having received a movement instruction by the terminal device in a state where an image of the probe is displayed on the display part; and performing a movement control of the measurement head following the movement instruction received by the terminal device by actuating the moving mechanism on the basis of the positional relation.

Claims

1. An operation method of a position measuring device that includes,

a measurement head having a probe for designating a detection point of a position of an object, and

a moving mechanism for moving the measurement head, and

acquires a coordinate of the detection point designated by the probe, the operation method comprising the steps of:

using a terminal device including an image acquisition part and a display part to acquire an image of the probe by the image acquisition part and display the image on the display part;

detecting a relative positional relation between the probe and the terminal device when having received a movement instruction by the terminal device in a state where an image of the probe is displayed on the display part; and

performing a movement control of the measurement head following the movement instruction received by the terminal device by actuating the moving mechanism on the basis of the positional relation.

2. The operation method of a position measuring device according to claim 1, wherein the step of performing a movement control of the measurement head includes moving the measurement head following movement of the terminal device so that a display position of the image of the probe on the display part when having received the movement instruction is fixed.

3. The operation method of a position measuring device according to claim 1, further comprising the steps of:

releasing a state where the display position of the image of the probe on the display part is fixed; and

stopping movement of the measurement head in a state where fixing of the display position is released.

4. The operation method of a position measuring device according to claim 1, wherein the step of performing a movement control of the measurement head includes stopping movement of the measurement head in a case where an acceleration speed when the terminal device has moved exceeds a preset value.

5. The operation method of a position measuring device according to claim 1, wherein the step of performing a movement control of the measurement head includes, in a case where the terminal device has moved exceeding a preset range from a state where the terminal device does not move, starting movement of the measurement head following the movement of the terminal device.

6. The operation method of a position measuring device according to claim 1, wherein the step of performing a movement control of the measurement head includes varying an angle of the probe in accordance with rotational movement of the terminal device.

7. The operation method of a position measuring device according to claim 1, wherein according to a predetermined movement operation for the terminal device, the position measuring device performs processing by regarding that a specific command corresponding to the movement operation has been input.

8. The operation method of a position measuring device according to claim 1, wherein

the display part has a touch sensor, and

the step of performing a movement control of the measurement head includes, after having received the movement instruction, moving the measurement head on the basis of a distance of contact and a direction of contact detected by the touch sensor.

9. An operation method of a position measuring device that includes,

a measurement head having a probe for designating a detection point of a position of an object, and

a moving mechanism for moving the measurement head, and

acquires a coordinate of the detection point designated by the probe, the operation method comprising the steps of:

detecting a position of a specific region of a worker'"'"'s body by a three-dimensional position sensor to detect a relative positional relation between the specific region and the probe; and

detecting motion of the specific region by the three-dimensional position sensor to perform a movement control of the measurement head following the motion of the specific region by actuating the moving mechanism on the basis of the positional relation and the motion of the specific region.

10. The operation method of a position measuring device according to claim 9, wherein

the specific region is a hand, and

the step of performing a movement control of the measurement head includes moving the measurement head on the basis of a type of motion, a motion amount, and a motion direction of the hand.