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Grinding tool for hard alloy cutter grinding and preparation method thereof

A tool grinding and cemented carbide technology, which is used in grinding machine parts, grinding/polishing equipment, grinding devices, etc., and can solve the problem of weak bending resistance, low cooling efficiency, slow heat dissipation, etc. problems, to achieve the effect of reducing grinding head cracks or end face crushing, easy chip removal, and reducing excessive temperature

Active Publication Date: 2019-03-26
江西天仙精藏设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the existing grinding tools are used for grinding cemented carbide tools, there are more or less disadvantages, such as slow heat dissipation, poor chip removal, weak bending resistance, strength, density, and wear resistance need to be further improved, etc. , the base body, grinding head, and fixed end of the prior art abrasive tool are all solid, and the manufacturing process is also directly sintered. The solid abrasive tool has low cooling efficiency. The outer or outer end of the general abrasive tool is cooled by the grinding machine spindle head. The water pipe directly cools the outside of the grinding head, which is not suitable for carbide tool grinding

Method used

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  • Grinding tool for hard alloy cutter grinding and preparation method thereof
  • Grinding tool for hard alloy cutter grinding and preparation method thereof
  • Grinding tool for hard alloy cutter grinding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: as Figure 1-2 A kind of preparation method of the abrasive tool that cemented carbide tool grinding is used, comprises following concrete steps:

[0034] a. The fixed end 1 and the base body 2 are integrally casted. After casting, the sand adhered to the base body cooling channel 5 and the hollow structure 4 is removed, so that the base body cooling channel 5 and the hollow structure 4 are connected for cooling gas or liquid flow;

[0035] b. After the fixed end 1 and the base body 2 are removed in step a, after heat treatment, carry out rough grinding and fine grinding on each surface of the fixed end 1 and the base body 2 with a grinder, and finally connect the front end of the base body 2 with the grinding head 3 Multiple fixing holes are drilled at the contact position for fixing the grinding head 3;

[0036]The preparation of c grinding head 3 includes: the main material includes zirconia 46wt%; yttrium oxide 12wt%; samarium trioxide 9wt%; Boron 3...

Embodiment 2

[0041] Embodiment 2: adopt the abrasive tool of above-mentioned embodiment 1 to carry out grinding to cemented carbide cutter, comprise the following steps:

[0042] In the first step, first inject cooling water into the cooling water tank of the grinding machine, fix the workpiece carbide tool on the fixture, then connect the cooling water pipe with the hollow structure 4 of the fixed end 1, and open the cooling water tank during grinding Valve, the cooling water passes through the hollow structure 4 of the fixed end 1, the cooling water enters the matrix cooling channel 5 of the matrix 2, and cools the matrix 2, and the cooling water enters the grinding head cooling channel 6 from the matrix cooling channel 5, and the grinding head 3 for cooling, and finally the cooling water enters the surface chip removal channel 7 from the grinding head cooling channel 6 to cool the grinding surface of the grinding head 3 and the surface of the workpiece carbide tool, and at the same time ...

Embodiment 3

[0052] Example 3 formula: the main material includes 58wt% zirconia; 20wt% yttrium oxide; 8wt% samarium trioxide, and the abrasive includes 14wt% diamond;

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Abstract

The invention discloses a grinding tool for hard alloy cutter grinding and a preparation method thereof. The grinding tool comprises a fixing end, a substrate and a grinding head. The fixing end is used for being fixed to a grinding machine tool main shaft and is of a hollow structure; one end of the substrate is connected with the fixing end, and the substrate is internally provided with at leastone substrate cooling flow passage; and the grinding head is connected with the other end of the substrate and internally provided with at least one grinding head cooling flow passage, and a surfacechip discharging flow passage is arranged on the grinding part, being in contact with the surface of a workpiece, of the front surface of the grinding head. The hollow structure, the substrate coolingflow passages, the grinding head cooling flow passages and the surface chip discharging flow passage communicate with one another, gas flow or liquid flow can be realized, the grinding tool for hardalloy cutter grinding has good radiating, chip discharging, intensity and wear-resistant properties.

Description

technical field [0001] The invention relates to the technical field of abrasive tools, in particular to an abrasive tool for grinding cemented carbide tools and a preparation method thereof. Background technique [0002] Cemented carbide cutting tool is an alloy material made of hard compound of refractory metal and bonding metal through powder metallurgy process. Cemented carbide has high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance A series of excellent performances, such as the existing technology, when grinding the shank, knife face and clamping end face of the cemented carbide tool, the heat dissipation of the abrasive tool is poor, the chip removal is poor, and it is prone to fracture and breakage, so there is still a need to further improve the grinding Heat dissipation, chip removal, strength and wear resistance characteristics of the tool. [0003] Disclosed a kind of abrasive tool end face processing device as Ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B3/36B24B41/04B24D7/10B24D7/16B24D3/00B24D3/34B24D18/00
CPCB24B3/36B24B41/04B24D3/00B24D3/346B24D7/10B24D7/16B24D18/0009
Inventor 吴桂菁
Owner 江西天仙精藏设备有限公司
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