Cutting tool assembly having clamp assembly comprising a clamp and a coolant plate

• US 9,827,614 B2
• Filed: 04/29/2016
• Issued: 11/28/2017
• Est. Priority Date: 06/14/2013
• Status: Active Grant

• Current Assignee: Kennametal Incorporated
• Original Assignee: Kennametal Incorporated
• Inventors: Chen, Shi, Henry, Nicholas J., Mizgalski, Kent P., Eichelberger, Samuel L.
• Primary Examiner(s): Addisu, Sara
• Application Number:
  US15/141,935
• Publication Number:
  US 20160271704A1
• Time in Patent Office: 578 Days
• CPC Class Codes: B23B 2205/00 Fixation of cutting inserts in holders
• CPC Class Codes: B23B 2250/12 Cooling and lubrication
• CPC Class Codes: B23B 2260/03 Clamps
• CPC Class Codes: B23B 27/10 Cutting tools with special provision for cooling drills with lubricating or cooling equipment B23B51/06; features relating to lubricating or cooling of milling cutters B23C5/28; arrangements or devices for cooling or lubricating tools or work B23Q11/10
• CPC Class Codes: B23B 27/1677 with plate-like cutting inserts clamped by a clamping member acting almost perpendicularly on the chip-forming plane and at the same time upon the wall of a hole in the insert
• CPC Class Codes: Y10T 407/14 with means to apply fluid to cutting tool

Abstract

A clamp assembly to secure a cutting insert to a holder that includes a clamp that has a distal end and a clamp projection depending from the distal end of the clamp. There is a coolant plate that has a top plate surface and a bottom plate surface wherein the top plate surface contains a recess that receives the clamp projection upon assembly of the clamp and the coolant plate. The bottom plate surface contains a bowl having an open bowl end wherein in operation the bowl directs coolant through the open bowl end toward the cutting insert. The assembly has a positioner extending between the clamp and the coolant plate so as to maintain a position of the clamp relative to the coolant plate upon the assembly of the clamp and the coolant plate.

Claims

1. A clamp assembly to secure a cutting insert to a holder, the clamp assembly comprising:

a clamp;

the clamp having a distal end and a clamp projection depending from the distal end of the clamp;

a coolant plate having a top plate surface and a bottom plate surface, the top plate surface containing a recess wherein the recess receives the clamp projection upon assembly of the clamp and the coolant plate;

the bottom plate surface containing a bowl having an open bowl end wherein in operation the bowl directs coolant through the open bowl end toward the cutting insert;

a positioner extending between the clamp and the coolant plate so as to maintain a position of the clamp relative to the coolant plate upon the assembly of the clamp and the coolant plate; and

wherein the recess comprises a depression.

2. The clamp assembly according to claim 1 wherein the clamp projection comprising a boss.

3. The clamp assembly according to claim 1 wherein the recess comprising a first notch, wherein the first notch having a first notch central longitudinal axis, and the coolant plate having a coolant plate central longitudinal axis, and wherein the first notch central longitudinal axis being generally parallel to the coolant plate central longitudinal axis.

4. The clamp assembly according to claim 2 wherein the clamp projection comprising a boss, wherein the recess comprising a first notch, wherein the bottom plate surface containing a rearward notch having a central longitudinal axis, and the first notch having a central longitudinal axis, and the central longitudinal axis of the rearward notch being generally perpendicular to the central longitudinal axis of the first notch.

5. The clamp assembly according to claim 1 wherein the clamp containing a threaded aperture and the coolant plate containing a threaded aperture, and the positioner comprising a threaded member, and the threaded member threadedly engaging the threaded aperture of the clamp and the threaded aperture of the coolant plate so as to maintain a position of the clamp relative to the coolant plate.

6. The clamp assembly according to claim 5 wherein the threaded member secures the coolant plate to the clamp.

7. The clamp assembly according to claim 1, wherein the coolant plate has a central longitudinal axis and the positioner is arranged generally parallel to the central longitudinal axis of the coolant plate.

8. The clamp assembly according to claim 1, wherein the coolant plate has a central longitudinal axis and the positioner is arranged oblique to the central longitudinal axis of the coolant plate.

9. The clamp assembly according to claim 1, wherein the clamp has a central longitudinal axis and the positioner is arranged generally parallel to the central longitudinal axis of the clamp.