Quick measurement module

Patent metadata

Field	Value
Publication number	US-11969845-B2
Application number	US-202016794158-A
Country	US
Kind code	B2
Filing date	Feb 18, 2020
Priority date	Feb 18, 2020
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

In a quick measurement module provided by the present invention, a first distance sensing unit and a second distance sensing unit are provided individually on a movable seat, so that when the movable seat is displaced along a linear shifting axis, the first distance sensing unit senses the distance from the first reference plane, and meanwhile, the second distance sensing unit senses the distance from the second reference plane, so as to sense the linearity accuracy in movement of the movable seat with respect to the first reference plane and the second reference plane. The first reference plane and the second reference plane are spaced apart by an angle other than a right angle, so that the linearity accuracy in movement in the two different planes, such as the horizontal linearity accuracy and vertical linearity accuracy, of the movable seat can be obtained through sensing.

First claim

What is claimed is:

1. A quick measurement module, comprising:
a stationary seat having a stationary seat body and a first reference plane and a second reference plane provided individually on the stationary seat body and extending linearly along a virtual shifting axis, the first reference plane and the second reference plane being spaced apart by an included angle;
a movable seat capable of linear displacement along the axial direction of the shifting axis within the extension range of the first reference plane and the second reference plane;
a first distance sensing unit secured to the movable seat and having a first sensing direction oriented towards the first reference plane, configured to sense the distance from the first reference plane, the first distance sensing unit has a photosensor, the photosensor is a laser locator;
a second distance sensing unit secured to the movable seat and having a second sensing direction oriented towards the second reference plane, configured to sense the distance from the second reference plane;
a position sensing unit configured to sense the position of the movable seat during its movement along the shifting axis; and
a rectification mechanism bridged between the stationary seat body and the movable seat, configured to ensure stability of the movable seat during movement;
whereby when the movable seat is moved linearly along the shifting axis, the first distance sensing unit and the second distance sensing unit sense respectively the distances of the movable seat from the first reference plane and second reference plane during its displacement so as to acquire the linearity accuracy of the movable seat in movement and have it combined with the position information provided by the position sensing units so as to acquire the repetition accuracy of the movable seat;
wherein the first distance sensing unit, the second distance sensing unit, and the rectification mechanism are connected to the moveable seat.

2. The quick measurement module of claim 1 , wherein the first reference plane and the second reference plane are perpendicular to each other.

3. The quick measurement module of claim 1 , wherein the movable seat has a movable seat body and a joint face on one side of the movable seat body and parallel to the shifting axis.

4. The quick measurement module of claim 3 , wherein the joint face is parallel to the second reference plane.

5. The quick measurement module of claim 2 , wherein the movable seat has a movable seat body and a joint face on one side of the movable seat body and parallel to the shifting axis.

6. The quick measurement module of claim 5 , wherein the joint face is parallel to the second reference plane.

7. The quick measurement module of claim 1 , wherein the rectification mechanism has a guide rail provided on the stationary seat body and extending linearly parallel to the shifting axis, a slider provided slidably on the guide rail, an arm having one end secured to the slider and the other end protruding above the movable seat, a jointer secured to the movable seat, and a flexible member bridged between the arm and the jointer.

8. The quick measurement module of claim 7 , wherein the flexible member has a sheet shape with the thickness of the sheet of the flexible member perpendicular to the shifting axis.

9. The quick measurement module of claim 8 , wherein the flexible member is made of metal.

Assignees

• Hiwin Mikrosystem Corp

Inventors

• Wang chen yi
• Sie Zong Ting
• Szu Kou I

Classifications

• B23Q17/2485 Primary

  using interruptions of light beams · CPC title

• B23Q15/24

  of linear position · CPC title

• G01B11/002

  for measuring two or more coordinates · CPC title

• G01D5/34753 Primary

  Carriages; Driving or coupling means · CPC title

• G01B11/026

  by measuring distance between sensor and object (G01B11/0608 takes precedence) · CPC title