Deburring tool with cutting blade

• US 5,181,810 A
• Filed: 06/11/1991
• Issued: 01/26/1993
• Est. Priority Date: 11/23/1988
• Status: Expired due to Term

• Current Assignee: Heinrich Heule
• Original Assignee: Heinrich Heule
• Inventors: Heule, Heinrich
• Primary Examiner(s): Bishop, Steven C.
• Application Number:
  US07/713,724
• Time in Patent Office: 595 Days
• Field of Search: 408/54, 408/83, 408/147-149, 408/173, 408/196, 408/223, 408/227, 408/713, 408/714, 408/154-156, 407/9, 407/116
• US Class Current: 408/147
• CPC Class Codes: B23B 51/102 Back spot-facing or chamfering
• CPC Class Codes: Y10S 408/714 Resilient tool or tool-support
• CPC Class Codes: Y10T 408/85 to move radially
• CPC Class Codes: Y10T 408/8583 with resiliently urged Tool
• CPC Class Codes: Y10T 408/909 Having peripherally spaced cutting edges

Abstract

A deburring tool has at least one cutting blade mounted in a guide recess of the tool for deburring and chamfering bores. The blade is of rectangular shape with forward, non-cutting end face and longitudinal side faces extending rearwardly from the end face. At least one side face has a non-cutting glide surface extending rearwardly from the end face at a first angle, and a cutting edge extending rearwardly from the glide surface at a second, different angle.

Claims

1. A deburring tool for removing burrs on through holes, comprising:

at least one elongate cutter body of generally rectangular cross-section having a forward axial end;

a rotatable tool holder mounted for movement in a tool feed direction and having a guide recess transverse to the feed direction for mounting said cutter body;

the forward axial end of said cutter body comprising a non-cutting axial end surface extending generally perpendicular to said guide recess;

said cutter body having a non-cutting, glide surface extending rearwardly at a first angle from said axial end surface, and at least one cutting edge extending rearwardly from the glide surface at a second, different angle relative to said axial end surface.

2. The tool as claimed in claim 1, wherein said cutter body has a cutting edge for cutting at a right angle to the direction of cutting, the cutting edge being generally perpendicular to said feed direction, and the glide surface being at an angle less than 90°

to said feed direction.

3. The tool as claimed in claim 1, wherein the glide surface begins at an end of the cutting edge and extends in a straight line from said cutting edge up to the axial end surface of the cutter body.

4. The tool as claimed in claim 1, wherein said glide surface is non-flat.

5. The tool as claimed in claim 4, wherein said glide surface is concave.

6. The tool as claimed in claim 4, wherein said glide surface is convex.

7. The tool as claimed in claim 1, including a shaving groove adjacent said cutting edge having an inner edge of curved shape.

8. The tool as claimed in claim 1, wherein said cutter body has a pair of opposed cutting edges at said second angle and a non-cutting glide surface at said first angle extending from an end of each cutting edge up to said axial end face.

9. A cutting blade for the deburring of bores, comprising an elongate rectangular body having a forward end face perpendicular to the longitudinal axis of said body, and longitudinal side faces extending rearwardly from said forward end face, at least one of said side faces comprising a first, non-cutting glide surface extending from said forward end face at a first angle, and a second, cutting edge face extending rearwardly from the glide surface at a second angle relative to said forward end face, said second angle being different from the first angle.

10. The blade as claimed in claim 9, wherein the second angle is 90°

.

11. The blade as claimed in claim 10, wherein the first angle is less than 90°

.