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Single-lip deep-hole drill with a chamfered rake face

A rake face, unilateral technology, used in drilling/drilling equipment, drilling, drilling tool accessories, etc., can solve the problem of time-consuming and expensive regrinding, achieve straightness deviation improvement, save time and cost. Effect

Active Publication Date: 2020-01-17
BOTEK PRAEZISIONSBOHRTECHNIK GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes regrinding time-consuming and expensive, and results in such single-sided drills being suitable for very little regrinding

Method used

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  • Single-lip deep-hole drill with a chamfered rake face
  • Single-lip deep-hole drill with a chamfered rake face
  • Single-lip deep-hole drill with a chamfered rake face

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] Throughout the figures, the same reference numerals are used for the same elements or parts.

[0068] figure 1 A single-sided drill is shown as a whole provided by reference number 1 . The central axis 3 is at the same time the axis of rotation of the single-sided drill 1 or of the workpiece (not shown), if set to rotate during drilling.

[0069] The diameter of unilateral drill 1 is represented by D. The single side drill 1 consists of three main components, namely the drill bit 5 , the clamping sleeve 7 and the shank 9 .

[0070] The shank is usually made of steel or the same or similar material as the drill bit. Shanks made of steel are usually manufactured by forming a profiled tube with V-shaped grooves.

[0071] The shank transmits the torque from the clamping sleeve driven by the machine spindle to the cutting edge formed on the drill bit where the cutting action takes place.

[0072] Clamping sleeves are usually made of steel or the same material as the sh...

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PUM

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Abstract

The invention relates to a single-lip drill (1) with an inner (23.1) and an outer (23.2) rake face. Very good middle course values and endurance are obtained with the polished face according to the invention.

Description

technical field [0001] The invention relates to a single-sided drill, which is characterized in that the boreholes produced therewith are very straight, or in other words have particularly small deviations from the straightness of the holes. Background technique [0002] In particular, the main terms disclosed in the present invention are explained in connection with the description of the drawings. In addition, various terms are explained in a glossary at the end of the description of the drawings. [0003] DE4413932A1 (Mitsubishi) discloses a single-sided drill, which has an axial structure installed on the rake face along the direction of the central axis of the single-sided drill. These structures are used to shape the chips and have the goal of allowing higher feeds of the drill bit through favorable shaping of the chips. The profile of the structure is very complex, and special grinding wheels are required for manufacture. Since the profile is diameter dependent, a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/04B23P15/28
CPCB23B51/0486B23P15/28B23B2251/085B23B2251/14B23B2251/201B23B2251/48B23B2251/56B23B51/066B23B51/00
Inventor 于尔根·温泽布格尔
Owner BOTEK PRAEZISIONSBOHRTECHNIK GMBH