Cleaning device for hemming roller

Patent metadata

Field	Value
Publication number	US-11260428-B2
Application number	US-202016895213-A
Country	US
Kind code	B2
Filing date	Jun 8, 2020
Priority date	Sep 26, 2019
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

A cleaning device for a hemming roller cleans the hemming roller of a hemming roller unit mounted on an arm tip of a hemming robot. The cleaning device includes: a support frame installed on a floor of a workshop; a roller rotation unit that is installed on an upper surface of the support frame and rotates the hemming roller that has entered the upper surface of the support frame through the hemming robot; and a scraper that is installed to be movable back and forth on the support frame while facing the roller rotation unit and removing foreign substances on the surface of the hemming roller.

First claim

What is claimed is:

1. A cleaning device for cleaning a hemming roller of a hemming roller unit mounted on an arm tip of a hemming robot, the cleaning device comprising:
a support frame installed on a floor of a workshop in a vertical direction;
a roller rotation unit installed on an upper surface of the support frame and configured to rotate the hemming roller, wherein the hemming roller has entered the upper surface of the support frame through the hemming robot; and
a scraper installed on the support frame and configured to:
move back and forth while facing the roller rotation unit, and
remove foreign substances on a surface of the hemming roller.

2. The cleaning device of claim 1 , further comprising:
a felt cushion installed on the upper surface of the support frame and configured to: move back and forth between the roller rotation unit and the scraper, and remove a residual foreign matter on the surface of the hemming roller.

3. The cleaning device of claim 2 , further comprising:
a cleaning oil spraying unit configured to spray cleaning oil toward the scraper and the felt cushion, respectively.

4. The cleaning device of claim 3 , further comprising:
a cleaning oil receiving portion installed on the upper surface of the support frame and configured to collect the cleaning oil sprayed toward the scraper and the felt cushion.

5. The cleaning device of claim 3 , wherein the cleaning oil spraying unit includes:
a cleaning oil storage tank installed on the support frame,
a cleaning oil supply pump connected to the cleaning oil storage tank and configured to discharge cleaning oil stored in the cleaning oil storage tank through a nozzle line, and
a nozzle member fixed to each of the scraper and felt cushion, connected to the nozzle line and configured to spray the cleaning oil to the scraper and the felt cushion.

6. The cleaning device of claim 2 , further comprising:
a drive cylinder fixedly installed on the support frame and configured to apply a forward and backward operating force to the felt cushion.

7. The cleaning device of claim 6 , wherein the felt cushion has a cushion surface in close contact with an upper roller surface and a lower roller surface of the hemming roller, and is installed at a front end of a working rod of the drive cylinder through a bracket.

8. The cleaning device of claim 1 , wherein the roller rotation unit includes:
a servo motor fixedly installed on the upper surface of the support frame, and
a rotation member connected to a drive shaft of the servo motor, and configured to rotate while being in contact with a bottom surface of the hemming roller.

9. The cleaning device of claim 8 , wherein the rotation member includes a rubber roller configured to:
cause a friction to the bottom surface of the hemming roller, and
rotate the hemming roller.

10. The cleaning device of claim 1 , further comprising:
a first drive cylinder fixedly installed on the support frame and configured to apply a forward and backward operation force to the scraper.

11. The cleaning device of claim 10 , wherein the scraper has a scraping surface that is in close contact with a roller surface of the hemming roller, and is installed at a front end of a working rod of the first drive cylinder through a bracket.

12. A cleaning device for a hemming roller unit having a plurality of preliminary hemming rollers and a main hemming roller, the cleaning device comprising:
a support frame installed on a floor of a workshop in a vertical direction;
a roller detection sensor installed on the support frame and configured to detect a presence or an absence of a preliminary hemming roller of the plurality of preliminary hemming rollers and the main hemming roller when the hemming roller unit, which is mounted on a hemming robot, moves to a predetermined position by the hemming robot;
a roller rotation unit installed on an upper surface of the support frame and configured to rotate the main hemming roller through a first drive unit;
a scraper installed on the support frame and configured to move back and forth by a second drive unit, while the scraper is facing the roller rotation unit in close contact with a roller surface of the main hemming roller, and removing foreign substances on the roller surface;
a felt cushion installed on the upper surface of the support frame and configured to:
move back and forth between the roller rotation unit and the scraper by a third drive unit, and
remove a residual foreign substance on the roller surface of the main hemming roller; and

a cleaning oil spraying unit configured to spray cleaning oil toward the scraper and felt cushion, respectively.

13. The cleaning device for hemming roller of claim 12 , wherein the roller detection sensor includes:
a sensor body installed on a sensor bracket provided on the upper surface of the support frame,
a switch lever rotatably installed in the vertical direction through a spring on the sensor body, and
a touch roller rotatably installed at an end of the switch lever and in contact with the main hemming roller and configured to rotate.

14. The cleaning device for hemming roller of claim 12 , further comprising:
a cleaning oil receiving portion installed on the upper surface of the support frame and configured to collect the cleaning oil sprayed toward the scraper and felt cushion.

15. The cleaning device for hemming roller of claim 12 , wherein the scraper is provided with a steel block having a scraping surface contacting the roller surface of the main hemming roller.

16. The cleaning device for hemming roller of claim 12 , wherein the felt cushion is made of a woolen fiber having a cushion surface in close contact with an upper roller surface and a lower roller surface of the hemming roller.

17. The cleaning device for hemming roller of claim 12 , wherein the cleaning oil spraying unit includes:
a cleaning oil storage tank installed on the support frame,
a cleaning oil supply pump connected to the cleaning oil storage tank and configured to discharge cleaning oil stored in the cleaning oil storage tank through a nozzle line, and
a nozzle member fixed to each of the scraper and the felt cushion, connected to the nozzle line, and configured to spray the cleaning oil to the scraper and the felt cushion.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Jung Ki Hwan

Classifications

• B08B1/34 Primary

  rotating about an axis parallel to the surface · CPC title

• B08B1/32

  using rotary cleaning members · CPC title

• B08B1/52

  using fluids · CPC title

• B08B1/30 Primary

  by movement of cleaning members over a surface · CPC title

• B21D39/023

  using rollers · CPC title