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Miniature tool with cooling liquid conveying hole

A micro-tool and coolant technology, applied in milling cutters, manufacturing tools, metal processing equipment, etc., can solve the problems of uneven flow of coolant 5, affecting tool life and processing quality, and poor tool cooling effect, so as to achieve sufficient cooling. , Improve the service life, the effect of high service life

Pending Publication Date: 2019-12-27
YANTAI AIDI PRECISION MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of hole machining, the tool needs to be fed axially. At this time, the coolant nozzle of the machine tool will move synchronously with the tool. Therefore, the coolant nozzle needs to be set at the highest point of the cutting part of the tool, so that it will eventually enter the hole. There is not much coolant, such as figure 1 As shown in a, the single and fixed nozzle of the coolant pipe 6 leads to uneven flow of the coolant 5 on both sides of the cutting edge, which affects the tool life and processing quality
[0004] Therefore, this cooling method has a very poor tool cooling effect in hole processing or obstructed processing conditions.

Method used

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  • Miniature tool with cooling liquid conveying hole
  • Miniature tool with cooling liquid conveying hole
  • Miniature tool with cooling liquid conveying hole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Such as figure 2 As shown, the cooling liquid passage 4 is two flat straight holes, the cross section of which is oblate and oblong, and the two cooling liquid passages 4 are symmetrically distributed along the axial direction of the handle body 2 .

[0071] In this embodiment, the hole has a large cross-sectional area, which can provide sufficient coolant flow, and improve the life of the tool and the processing quality of the workpiece.

Embodiment 2

[0073] Such as image 3 As shown, the cooling liquid passage 4 is a round straight hole with a circular cross section, and there are two in number, and the two cooling liquid passages 4 are symmetrically distributed along the axis of the handle body 2 .

[0074] This embodiment is especially suitable for scenarios where the coolant flow rate is not high. When the diameter of the cutting part of the tool is small and the coolant flow rate is not high, the cross-sectional area of ​​the cooling hole is reduced, which greatly ensures the tool handle The stiffness of body 2.

Embodiment 3

[0076] Such as Figure 4 As shown, the cooling liquid passage 4 is a round straight hole with a circular cross section and three in number, and the three cooling liquid passages 4 are symmetrically distributed along the axial direction of the handle body 2 .

[0077] In this embodiment, the cooling liquid is sprayed more evenly, and the flow rate of the cooling liquid is improved to a certain extent.

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Abstract

The invention discloses a miniature tool with a cooling liquid conveying hole. The miniature tool comprises a handle body and a cutting part, and the diameter of the handle body is greater than the diameter of the cutting part; a cooling liquid distribution groove is formed in the free end of the handle body; a cooling liquid channel is formed in the handle body; and an inlet of the cooling liquidchannel is formed in the bottom of the cooling liquid distribution groove, and an outlet of the cooling liquid channel is formed in the junction of the handle body and the cutting part. Therefore, according to the miniature tool with the cooling liquid conveying hole, cooling liquid is directly sprayed on the surface of a cutting edge of the tool, thus the tool is cooled more fully in the cuttingmachining process, and the service life is longer.

Description

technical field [0001] The invention relates to the field of machining, in particular to a micro tool with cooling liquid delivery holes. Background technique [0002] In the field of machining, various drills, milling cutters, reamers and other tools are widely used. In order to better cool down the working tools, large-sized tools will have cooling holes inside the tool body that run through the handle and the cutting part, but Round bar milling cutters, drills, reamers and other micro-tools with a cutting part diameter less than 5mm, because the cutting part diameter is small, if the built-in cooling hole is directly installed in the cutting part, the strength of the tool itself will be reduced, resulting in a decrease in service life, so Tools with a cutting diameter of less than 5 mm generally do not have cooling holes. [0003] In the prior art, the cutting tool with a diameter of the cutting part less than 5mm is mainly cooled by the coolant nozzle of the machine too...

Claims

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Application Information

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IPC IPC(8): B23C5/28
CPCB23C5/28
Inventor 邵凯李志贞徐欣薛冲常文程杨帆苏坎贺
Owner YANTAI AIDI PRECISION MASCH CO LTD