A pcbn blade with combined chip guide structure

A chip guide and blade technology, which is used in the manufacture of tools, accessories for tool holders, tools for lathes, etc., can solve the problems of high manufacturing cost of chip guide structure, restricting the service life of tools, etc., saving tool change time and saving Resources, easy to install effects

Active Publication Date: 2020-04-03
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high manufacturing cost of the chip guide structure of PCBN tools, it has seriously restricted the improvement of the service life of such tools. How to design a low-cost, replaceable, and widely applicable PCBN chip guide structure will improve the processing quality and efficiency of high-hardness materials. of great significance

Method used

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  • A pcbn blade with combined chip guide structure
  • A pcbn blade with combined chip guide structure
  • A pcbn blade with combined chip guide structure

Examples

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] The purpose of the present invention is to provide a PCBN insert with a combined chip guide structure to solve the problems in the prior art above. Use efficiency.

[0024] Based on this, the PCBN insert with a combined chip guide structure provided by the present invention includes a cutter body, an upper chip guide body and a lower chip guide body, and the upper chip guide body and the lower chip guide body are overlapped on the rake face of the cutte...

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Abstract

The invention discloses a PCBN blade with a combined cuttings-guiding structure. On the basis of an original blade, two rotatable cuttings-guiding sheet bodies are additionally arranged on a cutter body and are the upper cuttings-guiding sheet body and the lower cuttings-guiding sheet correspondingly, and the two cuttings-guiding sheet bodies are each provided with two types of cuttings-guiding cutter-edge shapes such as the circular arc shape, the broken line shape, the triangle and the linear circular arc shape; compressing washers are arranged at the centers of upper parts of the two cuttings-guiding sheet bodies, and fixing chunk devices are mounted on the two sides of a rotating center. According to the PCBN blade with the combined cuttings-guiding structure, in order to meet the cuttings-guiding needs of hard cutting machining, lower the production cost of cutters and realize quick replacing, the same blade can be used in various machining conditions, and the using efficiency isimproved; and the PCBN blade provides a new cutter design thought for coordinating cutting flow and improving the surface machining quality.

Description

technical field [0001] The invention relates to the technical field of superhard cutting inserts, in particular to a PCBN insert with a combined chip guide structure. Background technique [0002] In the process of high-speed cutting of high-hardness materials, in order to improve the strength of the cutting edge, negative chamfering is usually performed on the cutting edge area of ​​the PCBN tool, thus forming a negative rake cutting state. At this time, the chips cannot flow out and break off effectively, resulting in Chip buildup is a serious problem and will generate strong thermal loads in the cutting edge area, further aggravating tool wear. The flow direction of the chip and whether it is easy to break the chip have a lot to do with the chip guide structure of the blade. During the cutting process, the continuously formed chip undergoes serious plastic deformation, and its plasticity and toughness decrease, while hardening and embrittlement increase. Furthermore, whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B27/22B23B27/16
Inventor 陈涛宋立星郭健王勇胜
Owner HARBIN UNIV OF SCI & TECH
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