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A guide pad and a cutter head for a cutting tool

A technology of cutting tools and guide pads, which is applied in the manufacture of tools, drilling accessories, transportation and packaging, etc., and can solve the problems of processing accuracy degradation

Inactive Publication Date: 2016-06-01
SANDVIK INTELLECTUAL PROPERTY AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will have a degrading effect on the precision of the machining

Method used

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  • A guide pad and a cutter head for a cutting tool
  • A guide pad and a cutter head for a cutting tool
  • A guide pad and a cutter head for a cutting tool

Examples

Experimental program
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Embodiment Construction

[0036] first reference figure 1 with 2 , which show a cutting tool in the form of a cutting head 1 for a drilling tool in a perspective view and a front view, respectively. The cutter head is provided with a cutting insert 2 at the front end and with an external thread 3 at the rear end. The cutter head is adapted to be attached by means of an external thread to a drill pipe, not shown, which can be carried by suitable support means.

[0037] as from figure 2 with 3 best seen (of which image 3 Showing a cross-sectional view of the front end of the cutter head through the workpiece 4 and during drilling in the workpiece), the cutter head 1 comprises three cutting inserts 2 positioned such that their respective cutting edges are along the The axis of rotation 6 of the head is positioned vertically substantially rectilinearly, with two cutting inserts 2 mainly positioned on one side of the axis of rotation and one on the other side facing in the opposite direction. During...

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PUM

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Abstract

The invention relates to a guide pad for a cutting tool, the guide pad (8) having two opposite located main surfaces (14) and being symmetrically formed, the guide pad further comprising two longitudinal side surfaces (15) and four sliding surfaces (11), two on each main surface, which are located in sequence along a longitudinal axis (13) of the guide pad, and which are convexly curved as viewed in a plane perpendicular to the longitudinal axis. Each sliding surface (11) comprises a fluid conveying formation (22, 24, 32, 34), having a bottom surface (23) and a longitudinal extension in parallel to the longitudinal axis (13), which separates each sliding surface (11) into two convexly curved sliding sub-surfaces (11'). The guide pad also comprises two bearing surfaces (27), along each longitudinal side surface (15) of the guide pad (8), which are located on a respective side of and facing away from a median plane (17) halfway between the main surfaces (14) and having at least some extension in the direction of the median plane perpendicular to the longitudinal axis (13), wherein the bearing surfaces and a bottom surface of the fluid conveying formation are located between the median plane and an imaginary circle arc having the smallest radius of curvature that simultaneously can co-tangentially contact each of the sub surfaces at arbitrary contact points. The invention also relates to a cutter head for such guide pads.

Description

technical field [0001] The present invention relates to a guide pad for a cutting tool, the guide pad has two oppositely positioned main surfaces and is symmetrically shaped, and the guide pad further comprises two longitudinal side surfaces and four sliding surfaces, on each main surface There are two sliding surfaces which are positioned one behind the other along the longitudinal axis of the guide pad and which are convexly curved as seen in a plane perpendicular to the longitudinal axis. [0002] The invention also relates to a cutterhead for such a guide pad. Background technique [0003] Guide pads are used during machining of metals and other hard materials, for example on the bit of a deep hole drill, in order to prevent wear of the bit and to guide the drill during the drilling process and thereby maintain the bit on a straight axis , to produce straight boreholes with the highest possible accuracy. For this purpose, at least two guide pads are mounted in correspo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/04
CPCB23B51/0493B23B2250/12B23B2251/50B23B2251/56
Inventor 佩尔·汉森
Owner SANDVIK INTELLECTUAL PROPERTY AB