System and method of making a cast part

Patent metadata

Field	Value
Publication number	US-9669459-B2
Application number	US-201213661793-A
Country	US
Kind code	B2
Filing date	Oct 26, 2012
Priority date	Oct 26, 2012
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

A system and method of making a part. The part may cast in a die. A gripper assembly may be provided that has a gripper and a spray nozzle that provides a fluid. The part may be quenched with a fluid when the part is in the die.

First claim

What is claimed is:

1. A method of making a cast part comprising:
casting a part in a die unit;
opening the die unit;
positioning a gripper assembly having a gripper and a spray nozzle proximate the part; and
grasping the part with the gripper followed by quenching the part with a fluid provided by the spray nozzle when the part is in the die unit.

2. The method of claim 1 further comprising grasping the part with the gripper and removing the part from the die unit.

3. The method of claim 2 wherein the part is sprayed with the fluid while the part is being removed from the die unit.

4. The method of claim 2 wherein the spray nozzle is spaced apart from the gripper such that the gripper rotates about an axis of rotation with respect to the spray nozzle.

5. The method of claim 2 wherein grasping the part with the gripper occurs before the part is ejected from the die unit with ejector pins.

6. The method of claim 2 wherein the step of quenching the part occurs immediately after grasping the part with the gripper.

7. The method of claim 1 wherein quenching the part includes cooling the part with the fluid at a rate of at least 10° C./second.

8. The method of claim 1 wherein the fluid is a die lubricant or water.

9. A method of making a part comprising:
casting a part in a die unit;
opening the die unit;
positioning a gripper assembly having a gripper and a spray nozzle that sprays a fluid;
grasping the part with the gripper and then spraying the part with the fluid while the part is in a die;
removing the part from the die; and
terminating spraying the part after removing the part from the die.

10. The method of claim 9 wherein the step of removing the part further comprises holding the part in a stationary position with the gripper after the part is removed from the die and continuing to spray the part with the fluid to quench the part for a predetermined period of time.

11. The method of claim 9 wherein the step of removing the part further comprises rotating the gripper with respect to the spray nozzle after the part is removed from the die such that the part moves with respect to the fluid sprayed by the spray nozzle.

12. The method of claim 9 wherein spraying the part with the fluid is terminated when a temperature of the part is less than 300° C.

13. The method of claim 9 further comprising actuating the gripper to release the part after terminating spraying of the part.

14. The method of claim 9 wherein the part is a cylinder block that has a bearing surface, wherein spraying the part with the fluid includes spraying the bearing surface with the fluid to cool the bearing surface.

Assignees

• Ford Motor Co

Inventors

• Guthrie Bradley D
• Nara Venkat
• Harrison Paul
• Hasenbusch Ronald H

Classifications

• F02F2200/06

  Casting · CPC title

• F02F7/0053

  Crankshaft bearings fitted in the crankcase · CPC title

• F02F7/0021

  Construction · CPC title

• C21D9/0068 Primary

  for particular articles not mentioned below · CPC title

• C21D9/0062

  Heat-treating apparatus with a cooling or quenching zone · CPC title