Cutting tool

Patent metadata

Field	Value
Publication number	US-10486238-B2
Application number	US-201615557645-A
Country	US
Kind code	B2
Filing date	Nov 22, 2016
Priority date	Dec 7, 2015
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

A cutting tool comprises: a plate member which is provided, at a leading end thereof, edge parts; a support member which supports the plate member so as to cause the edge parts to be projected; and a coolant supply part which has an ejection port and which ejects, from the ejection port, fluid that cools the edge parts. The support member has a non-contact surface which forms a gap with respect to an outer side surface of the plate member. The gap is opened toward a side where the edge parts are provided. The ejection port is arranged in the gap, and the ejection port ejects the fluid toward the plate member.

First claim

What is claimed is:

1. A cutting tool which forms a groove in a workpiece, the cutting tool comprising:
a plate member which is provided, at a leading end thereof, with edge parts, the plate member having an outer circumferential surface that is curved in a substantially circular arc shape in a front view;
a support member which supports the plate member so as to cause the edge parts to be projected; and
a fluid supply part which has an ejection port and which ejects, from the ejection port, fluid that cools the edge parts, wherein:
the support member has a non-contact surface which forms a gap with respect to an outer side surface of the plate member;
the gap is opened toward a side where the edge parts are provided;
the ejection port is arranged in the gap, and the ejection port ejects the fluid toward the plate member;
the non-contact surface is provided at an end portion of a wall surface of the support member;
the ejection port is provided so as to be open in the non-contact surface such that the fluid ejected from the ejection port adheres to the outer circumferential surface of the plate member; and
the ejection port is provided so as to be open such that a normal of the ejection port is directed toward the plate member.

2. The cutting tool according to claim 1 , wherein:
the fluid supply part has, inside the support member, a flow path through which the fluid passes; and
the ejection port is provided so as to be open in the non-contact surface.

3. The cutting tool according to claim 2 , wherein the non-contact surface is formed by notching an end of the support member.

4. The cutting tool according to claim 1 , wherein the plate member is curved so as to be projected toward the support member.

5. The cutting tool according to claim 1 , wherein:
the plate member is configured so as to be slidable with respect to the support member; and
the cutting tool comprises a fixing member for fixing the plate member.

6. The cutting tool according to claim 5 , wherein the fixing member has a pressure member which presses the plate member toward the support member and a fastening member which fastens the pressure member to the support member.

7. The cutting tool according to claim 1 , wherein:
the plate member has a body having a plate shape and a cutting insert having the edge parts; and
the cutting insert is removably mounted on the body.

8. The cutting tool according to claim 2 , wherein the plate member is curved so as to be projected toward the support member.

9. The cutting tool according to claim 3 , wherein the plate member is curved so as to be projected toward the support member.

10. The cutting tool according to claim 2 , wherein:
the plate member is configured so as to be slidable with respect to the support member; and
the cutting tool comprises a fixing member for fixing the plate member.

11. The cutting tool according to claim 3 , wherein:
the plate member is configured so as to be slidable with respect to the support member; and
the cutting tool comprises a fixing member for fixing the plate member.

12. The cutting tool according to claim 4 , wherein:
the plate member is configured so as to be slidable with respect to the support member; and
the cutting tool comprises a fixing member for fixing the plate member.

13. The cutting tool according to claim 2 , wherein:
the plate member has a body having a plate shape and a cutting insert having the edge parts; and
the cutting insert is removably mounted on the body.

14. The cutting tool according to claim 3 , wherein:
the plate member has a body having a plate shape and a cutting insert having the edge parts; and
the cutting insert is removably mounted on the body.

15. The cutting tool according to claim 4 , wherein:
the plate member has a body having a plate shape and a cutting insert having the edge parts; and
the cutting insert is removably mounted on the body.

16. The cutting tool according to claim 5 , wherein:
the plate member has a body having a plate shape and a cutting insert having the edge parts; and
the cutting insert is removably mounted on the body.

17. The cutting tool according to claim 6 , wherein:
the plate member has a body having a plate shape and a cutting insert having the edge parts; and
the cutting insert is removably mounted on the body.

Assignees

• Tungaloy Corp

Inventors

• SASAKI Yasutake

Classifications

• B23B2220/126

  Producing ring grooves · CPC title

• B23B27/08

  Cutting tools with blade- or disc-like main parts {(with disc-like main parts B23B27/083)} · CPC title

• B23B27/04

  Cutting-off tools (B23B27/08 takes precedence {; toolholders for cutting-off inserts B23B29/043}) · CPC title

• B23B29/043

  with cutting-off, grooving or profile cutting tools, i.e. blade- or disc-like main cutting parts (B23B29/14 takes precedence) · CPC title

• B23B27/10 Primary

  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 title