阅读说明：本技术 一种基于仿生思想的结构化砂轮 (Structured grinding wheel based on bionic thought ) 是由 于海跃 张维伦 马国元 于 2019-11-18 设计创作，主要内容包括：本发明提供了一种基于仿生思想的结构化砂轮,其特征在于：包括磨粒段和仿生结构槽,仿生结构槽在砂轮表面上通过激光加工工艺制造而成,仿生结构槽借鉴了草鱼体表鳞片具有抑制流场扰动、平均对流传热系数大、抗附着等特性的排布形态。在砂轮表面布置仿生结构槽能够使得砂轮在进行磨削加工时磨削液利用率高、散热性好、磨屑堵塞少。本发明中的仿生结构槽,破坏砂轮高速旋转时产生的气障,将更多冷却液输送至工作区域,降低砂轮与工件之间的磨削热与磨削力,提高砂轮的使用寿命和工件的加工质量。(The invention provides a structural grinding wheel based on a bionic idea, which is characterized in that: the bionic structural groove is manufactured on the surface of the grinding wheel through a laser processing technology, and the bionic structural groove refers to the arrangement form of grass carp body surface scales with the characteristics of flow field disturbance inhibition, large average convection heat transfer coefficient, adhesion resistance and the like. The bionic structure groove is arranged on the surface of the grinding wheel, so that the grinding wheel has high grinding fluid utilization rate, good heat dissipation and less abrasive dust blockage during grinding. The bionic structural groove in the invention destroys the air barrier generated when the grinding wheel rotates at high speed, and conveys more cooling liquid to the working area, thereby reducing the grinding heat and grinding force between the grinding wheel and the workpiece, and improving the service life of the grinding wheel and the processing quality of the workpiece.)

1. A structural grinding wheel based on bionic thought is characterized in that: the structured grinding wheel comprises an abrasive particle section and a bionic structure groove, wherein the bionic structure groove is formed in the surface of the grinding wheel through a laser processing technology, and the bionic structure groove refers to the arrangement form that grass carp body surface scales have the characteristics of flow field disturbance inhibition, large average convection heat transfer coefficient, adhesion resistance and the like.

2. The bionic structural grooves have the arrangement characteristics that grass carp body surface scales have the characteristics of flow field disturbance inhibition, large average convection heat transfer coefficient, adhesion resistance and the like, and each bionic structural groove is spiral on the surface of the grinding wheel along the axial direction.

3. The method of claim 1, wherein the abrasive section surrounded by the grooves of the bionic structure is diamond-shaped.

4. The method according to claim 1, wherein the cross section of the bionic structure groove is in the shape of a circular arc, and the structure size of the bionic structure groove is as follows: the groove width is 1mm, and the groove depth is 1 mm.

5. According to claim 3, the rhombus is arranged at an apex angle of 130 degrees in the rotation direction of the grinding wheel, and the rhombus is arranged at an included angle of 50 degrees in the axial direction of the grinding wheel.

Technical Field

The invention relates to a grinding wheel, in particular to a bionic structured grinding wheel.

Background

Grinding is one of the most widely used precision machining processes. However, in the grinding process, due to the high rotating speed of the grinding wheel and the random arrangement of the grinding materials, the air flow field around the grinding wheel generates strong disturbance. Such disturbances can impede the grinding fluid from entering the grinding area, severely reducing the efficiency of the grinding fluid utilization. The grinding area is relatively closed, so that the difficulty of heat dissipation and chip removal in the grinding process is increased. The above drawbacks of grinding eventually reduce the processing quality of the workpiece and the service life of the tool. The traditional solution is to improve the conditions of cooling, lubrication and chip removal by increasing the supply of grinding fluid, but the method has low utilization efficiency of the grinding fluid and serious waste, so that grinding becomes one of the processing technologies which have the greatest influence on natural environment and resources. Therefore, poor cooling, lubricating and chip removal conditions have become a key problem restricting the development of grinding. In conclusion, the difficult problems to be solved are to improve the greenness and the cooling, lubricating, chip removal and other effects in the grinding process.

The invention introduces the bionic idea into the design of the grinding wheel, and finally achieves the purposes of enhancing the cooling, lubricating and chip removal effects in the grinding process, thereby improving the grinding quality of the workpiece, prolonging the service life of the cutter, reducing the usage amount of grinding fluid and reducing the specific grinding energy.

Disclosure of Invention

The invention aims to provide a green and efficient grinding wheel.

The technical scheme of the invention is as follows:

the structured grinding wheel comprises an abrasive particle section and bionic structure grooves, wherein the bionic structure grooves are formed in the surface of the grinding wheel through a laser processing technology, the bionic structure grooves refer to the arrangement form that grass carp body surface scales have the characteristics of flow field disturbance inhibition, large average convection heat transfer coefficient, adhesion resistance and the like, and each bionic structure groove is in a spiral shape on the surface of the grinding wheel along the axial direction.

The design philosophy of bionical structure groove is derived from the scale shape of grass carp body surface, and the grass carp can freely shuttle around in aqueous, and difficult predator discovery, earth bacterium are difficult for depending on the surface, and the scale of its body surface is arranged and is played decisive role with the shape, and the scale overlaps each other, and the part that contacts with external water is similar to the rhombus, because of the rhombus has special rule and the angle of arranging for grass carp body surface scale has the characteristics of arranging of characteristics such as restraining flow field disturbance, average convection heat transfer coefficient is big, anti adhesion. The grinding wheel has the advantages of high grinding fluid utilization rate, good heat dissipation and less abrasive dust blockage during grinding.

And extracting the shape and the arrangement rule of fish scales of the contact part of the body surface of the grass carp and water, designing the bionic structure grooves to be mutually staggered, and enclosing the grinding material section into a diamond shape. The cross section of the bionic structure groove is arc-shaped, and the structure size of the bionic structure groove is as follows: the groove width is 1mm, and the groove depth is 1 mm. The vertex angle of the rhombus in the rotating direction of the grinding wheel is 130 degrees, and the vertex angle of the rhombus in the axial direction of the grinding wheel is 50 degrees.

The invention has the beneficial effects that: the bionic idea is introduced into the design of the grinding wheel, so that the purposes of enhancing the cooling, lubricating and chip removal effects in the grinding process are achieved, the processing precision of a workpiece is improved, the service life of a cutter is prolonged, the use amount of grinding fluid is reduced, the specific grinding energy is reduced, and the grinding efficiency is improved.

Drawings

FIG. 1 is a perspective view of a biomimetic structured grinding wheel of the present invention;

FIG. 2 is a schematic view of the surface of a biomimetic structured grinding wheel according to the present invention;

FIG. 3 is an enlarged cross-sectional view of a groove of a biomimetic structure.

Detailed Description

The invention is explained in further detail below with reference to examples given in the drawings.

As shown in fig. 1, the bionic structured grinding wheel ① includes a grinding particle segment ② and a bionic structure groove ③, and the bionic structure groove is in a spiral shape along the axial direction on the surface of the bionic structured grinding wheel.

As shown in fig. 2, the bionic structured grinding wheel surface is shown in a schematic view, the bionic structure grooves are staggered with each other, the shape enclosed by the abrasive segments is a rhombus, the vertex angle of the rhombus arranged in the rotation direction of the grinding wheel is 130 degrees, and the included angle of the rhombus arranged in the axial direction of the grinding wheel is 50 degrees.

As shown in the enlarged cross section of the bionic structure groove in fig. 3, the cross section of the bionic structure groove is arc-shaped, and the structural size of the bionic structure groove is as follows: the groove width is 1mm, and the groove depth is 1 mm.

Firstly, a grinding wheel is manufactured by using a sintering process, the bionic structure groove is processed on the surface of the grinding wheel by using a laser process, and a laser beam is superposed with the diameter direction of the grinding wheel so as to ensure that the bionic structure groove is uniform and stable in shape. The laser beam repeatedly moves along the axial direction of the grinding wheel, meanwhile, the grinding wheel axially rotates, the bionic structure groove on the surface of the grinding wheel is machined, and the shape and the size of the bionic structure groove can be determined by parameters such as power, spot size and machining speed of the laser beam.