Testbed device for use in predictive modelling of manufacturing processes

Patent metadata

Field	Value
Publication number	US-11623316-B2
Application number	US-202016856533-A
Country	US
Kind code	B2
Filing date	Apr 23, 2020
Priority date	Apr 23, 2019
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

A testbed device includes high performance actuators, a video microscopy system and a plurality of high resolution, throughput sensors adapted or configured for collecting data that may be used in predictive modelling of machine processes.

First claim

What is claimed:

1. A testbed device, comprising:
a base;
a displaceable machine table supported on the base;
a sample holder supported on the displaceable machine table;
a displaceable spindle supported on the base;
a video microscopy system, including a camera, a microscope and a light source;
a plurality of sensors adapted to measure force, vibration and thermal emission;
a tool holder carried on the displaceable spindle, the tool holder being adapted to hold a cutting or burnishing tool; and
a control module including a controller, an X-actuator, a Y-actuator and a Z-actuator wherein the controller is adapted to (a) control the X-actuator, the Y-actuator and the Z-actuator, (b) receive data from the plurality of sensors, and (c) receive data images from the video microscopy system wherein the testbed device further includes a carbon fiber rod assembly integrated into the tool holder, a first laser interferometer targeting a first target element at a first end of the carbon fiber rod along a first line and a second laser interferometer targeting a second target element at a second end of the carbon fiber rod along a second line perpendicular to the first line.

2. The testbed device of claim 1 , wherein the plurality of sensors include a tool acoustic emission sensor integrated into the tool holder.

3. The testbed device of claim 2 , wherein the plurality of sensors include a sample acoustic emission sensor integrated into the sample holder.

4. The testbed device of claim 3 , wherein the plurality of sensors include a tangential force load cell integrated into the tool holder.

5. The testbed device of claim 4 , wherein the plurality of sensors include at least one vertical force load cell integrated into the displaceable machine table.

6. The testbed device of claim 5 , wherein said plurality of sensors have a sampling rate of at least 2 MHz/channel.

7. The testbed device of claim 6 , wherein the camera has a frame speed of at least 10,000 frames per second.

8. The testbed device of claim 7 , wherein the camera has a frame speed of at least 500,000 frames per second.

9. The testbed device of claim 7 , wherein said microscope provides image magnification of 5×-50×.

10. The testbed device of claim 9 , wherein said light source provides greater than 250 million lux.

11. The testbed device of claim 1 , wherein the video microscopy system provides optical resolution of approximately 550 nm at 50× magnification.

12. The testbed device of claim 1 , wherein the X-actuator, the Y-actuator and the Z-actuator all provide greater than 5 Gs of acceleration, 4.5 m/s of peak speed and 50 nm absolute encoder position feedback.

13. The testbed device of claim 1 , further including a sapphire constraint between a sample held in the sample holder and the camera.

14. The testbed device of claim 1 , further including a stationary proximity sensor and a data acquisition end point marker supported on the displaceable machine table.

15. The testbed device of claim 1 , wherein the camera has a frame speed of at least 10,000 frames per second.

16. The testbed device of claim 1 , wherein the camera has a frame speed of at least 500,000 frames per second.

17. The testbed device of claim 1 , wherein the camera has a frame speed of between 10,000 and 2,100,000 frames per second.

Assignees

• Univ Kentucky Res Found

Inventors

• Schoop Julius

Classifications

• B23Q17/098 Primary

  by measuring noise · CPC title

• B23Q17/2428

  for measuring existing positions of tools or workpieces · CPC title

• G05B2219/37518

  Prediction, estimation of machining parameters from cutting data · CPC title

• B23Q17/2495

  using interferometers · CPC title

• B23Q17/249 Primary

  using image analysis, e.g. for radar, infrared or array camera images · CPC title