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Grinding wheel for ultra-high-speed grinding

An ultra-high-speed grinding and ultra-high-speed technology, applied in the field of grinding processing, can solve the problems of grinding wheel explosion, poor anti-vibration performance, and high power consumption

Pending Publication Date: 2021-09-10
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional grinding wheel substrates usually use metal materials, such as aluminum alloy, steel, titanium alloy, etc.; however, metal materials have high specific strength and specific stiffness, and have poor vibration resistance and high power consumption under high centrifugal force and high speed working conditions. , large spindle load, large radial deformation and other defects; at the same time, the huge centrifugal force may even cause the grinding wheel to explode, causing great harm to the machine tool operator and the machine tool

Method used

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  • Grinding wheel for ultra-high-speed grinding
  • Grinding wheel for ultra-high-speed grinding
  • Grinding wheel for ultra-high-speed grinding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Please refer to Figure 1 to Figure 4 , this embodiment provides a grinding wheel for ultra-high-speed grinding, which can be assembled on the power spindle of processing equipment such as a grinding machine, and the power spindle can be used to drive the grinding wheel to rotate at an ultra-high speed in a controlled manner, thereby completing the grinding process of the workpiece to be processed ; Among them, ultra-high speed usually refers to the linear speed of the grinding wheel ≥ 150 m / s; the grinding wheel includes a grinding wheel base, an abrasive layer 30, a main shaft link 40 and a fastener 50, and the grinding wheel base includes a carbon fiber base 10 and a metal base 20; the following Explain separately.

[0042] see Figure 1 to Figure 4 , the carbon fiber matrix 10 is a ring-shaped structure as a whole, mainly made of carbon fiber reinforced composite material (CFRP for short) using a three-dimensional weaving process. The three-dimensional weaving proc...

Embodiment 2

[0052] see Figure 3 to Figure 6 and combine figure 1 and figure 2 The difference between the grinding wheel for ultra-high-speed grinding provided in this embodiment and the first embodiment lies in that the structure of the main shaft link 40, the fastener 50 and the metal base 20 and the combination relationship between them are different.

[0053] see Figure 5 and Figure 6 , the main shaft link 40 can be divided into three functional structural sections such as the main shaft connecting section 40a, the flange limiting section 40b and the positioning boss section 40c along the axial direction; the main shaft connecting section 40a can be connected with the The power spindle is detachably coaxially fixedly connected, and the metal base 20 is provided with a circular through hole 20b penetrating in the axial direction and several first countersink holes 20c, and several first countersink holes 20c surround the circular through hole 20b are evenly distributed; at the s...

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Abstract

The invention discloses a grinding wheel for ultra-high-speed grinding. The grinding wheel for ultra-high-speed grinding comprises a grinding wheel base body and a grinding material layer, the grinding wheel base body comprises a carbon fiber base body, the carbon fiber base body is prepared and formed by a carbon fiber reinforced composite material through a three-dimensional weaving technology, and the grinding material layer is fixed to the peripheral face of the carbon fiber base body in a surrounding mode. The carbon fiber base body has continuous fiber distribution in the radial direction, the annular direction and the axial direction, it can be guaranteed that the grinding wheel base body has balanced mechanical performance in all the directions, the overall function failure of the grinding wheel or the damage of the grinding wheel base body (or the whole) caused by weak mechanical property in a certain direction at an ultrahigh linear speed is effectively avoided, and guarantee is provided for the safety and the mechanical property of the grinding wheel; and meanwhile, by means of the characteristics of light weight, high damping, high specific stiffness and high specific strength of the carbon fiber reinforced composite material, conditions can be created for reducing the weight and working energy consumption of the grinding wheel, reducing vibration and expansion deformation of the grinding wheel and the like, and the grinding wheel can be used in the field of ultra-high-speed precise grinding machining.

Description

technical field [0001] The invention relates to the field of grinding processing, in particular to a grinding wheel for ultra-high-speed grinding. Background technique [0002] Ultra-high-speed grinding refers to high-speed grinding whose grinding wheel speed is more than 5 times that of ordinary grinding speed (usually ≥150 m / s). At the same time, ultra-high-speed grinding can also significantly improve the processing characteristics of difficult-to-machine materials such as hard and brittle materials, aerospace alloy materials, and composite materials, and has become an important processing technology for industrial economic development. Among them, the grinding wheel base is an important carrier for ultra-high-speed grinding. Since the grinding wheel needs to work at an ultra-high linear speed; therefore, extremely high requirements are placed on the material properties of the grinding wheel base such as anti-vibration, anti-deformation, and anti-failure. [0003] Tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D5/00
CPCB24D5/00
Inventor 梁双强张璧周聪李孟飞李帅卢守相
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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