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CN-121989163-A - Integrated fluid synergistic electroplating grinding wheel

CN121989163ACN 121989163 ACN121989163 ACN 121989163ACN-121989163-A

Abstract

The invention relates to the field of miniature grinding wheels, in particular to an integrated fluid synergistic electroplated grinding wheel, which comprises an integrally formed grinding wheel substrate, an annular grinding body surrounding the central shaft, a fluid power unit positioned between the central shaft and the annular grinding body, and a plurality of micropores penetrating through the annular grinding body, wherein the fluid power unit is configured to generate a supercharging effect on cooling liquid entering the grinding wheel when the grinding wheel rotates around the axis of the grinding wheel, and promote the cooling liquid to be sprayed out of the micropores in a jet flow mode in a directional manner so as to realize cooling of a grinding area and scouring of abrasive dust. The integrated fan blade structure cooperates with the micro-holes driven by the fan blade structure to form active supercharged directional jet flow. Not only can the ‌ accurate and rapid cooling ‌ of the grinding hot spot be realized, the workpiece is prevented from being stuck and burnt, but also the through hole structure can ‌ synchronously wash and discharge chips.

Inventors

  • CHEN ZHITONG

Assignees

  • 山东天舟精密机械有限公司

Dates

Publication Date
20260508
Application Date
20260226

Claims (10)

  1. 1. The integrated fluid synergistic electroplated grinding wheel is characterized by comprising an integrally formed grinding wheel matrix, wherein the matrix comprises: A central shaft portion for mounting; an annular grinding body surrounding the central shaft part, wherein the outer circumferential surface of the annular grinding body is provided with a bearing area for abrasive materials; A fluid power unit located between the central shaft portion and the annular grinding body; A plurality of micropores extending through the annular grinding body; Wherein the fluid power unit is configured to generate a pressurizing effect on the coolant entering the inside of the grinding wheel when the grinding wheel rotates around the axis of the grinding wheel, and to cause the coolant to be directionally ejected from the micropores in the form of jet flow so as to simultaneously realize cooling of the grinding area and flushing of the grinding dust.
  2. 2. The fluid-enhanced grinding wheel of claim 1, wherein said fluid-dynamic unit includes a plurality of blades extending radially outwardly from said central shaft portion.
  3. 3. The integrated fluid enhanced electroplated grinding wheel of claim 2, wherein said fluid dynamic unit further comprises a water storage chamber integrally formed with said wheel base for containing a cooling fluid; Wherein, the water storage cavity is formed at the inner ring of the annular grinding body.
  4. 4. The integrated fluid enhanced electroplating grinding wheel of claim 3, wherein an annular water storage ring is arranged at the upper end of the annular grinding body, a water inlet cavity is formed between the inner ring of the water storage ring and the central shaft part, and the water inlet cavity is communicated with the water storage cavity.
  5. 5. The integrated fluid enhanced electroplating grinding wheel according to claim 4, wherein a gap is formed between the top end of the fan blade and the water storage cavity and/or the inner wall of the water storage ring; The fan blade is a straight blade or a spiral blade.
  6. 6. The fluid-enhanced grinding wheel of claim 3, wherein the axial height of the central shaft portion is higher than or lower than the axial height of the water storage ring, so that the fan blades are arranged in a protruding or recessed manner relative to the top end of the water storage ring.
  7. 7. The integrated fluid enhanced electroplating grinding wheel of claim 1, wherein the micropores are distributed in a multi-layer annular array on the annular grinding body.
  8. 8. The fluid-enhanced electroplated grinding wheel of claim 7, wherein the inclination angle of the blades is consistent with the arrangement direction of the micropores of the adjacent level, so that the direction of the pressure field generated by the fluid pushed by the blades is consistent with the inlet direction of the micropores.
  9. 9. The integrated fluid enhanced electroplating grinding wheel of claim 1, wherein one end of the micropore close to the water storage cavity is in a horn mouth shape.
  10. 10. The fluid-enhanced grinding wheel of claim 1, wherein the micro-holes are circular holes or elongated holes.

Description

Integrated fluid synergistic electroplating grinding wheel Technical Field The invention relates to the technical field of miniature grinding wheels, in particular to an integrated fluid synergistic electroplated grinding wheel. Background With the increasing requirements of modern manufacturing industries on machining precision, efficiency and part performance, in particular in the high-end manufacturing fields of aerospace, precision dies and the like, the requirements on the performance of superhard grinding tools are higher. In these fields, typical parts such as aeroengine blades are usually made of difficult-to-process materials such as titanium alloy and superalloy, and the problems of surface burn, metallographic structure change, residual stress and the like are easily caused by grinding heat concentration in the process of processing, so that the fatigue strength and the service life of the parts are directly affected. In superhard grinding tools, electroplated diamond grinding wheels are widely applied to precision cutting and forming grinding of difficult-to-machine materials due to the characteristics of high bonding agent strength, good abrasive cutting edge performance, excellent machining precision and the like. However, conventional integral or split electroplated grinding wheels have inherent bottlenecks in ‌ cooling and chip removal ‌, which limit their grinding efficiency, workpiece quality and their service lives. First, conventional grinding wheels typically rely on an external nozzle to spray a cooling fluid for cooling. This external cooling regime is "face-flow" or "splash" cooling, and the coolant is difficult to effectively penetrate to the small contact interface of the grinding arc area, resulting in poor ‌ precision cooling of the grinding hot spot ‌. A large amount of heat generated in the grinding area cannot be taken away in time, and the workpiece (such as titanium alloy) is extremely easy to be adhered ‌ to the abrasive on the surface of the grinding wheel through ‌. This sticking is not simply a build-up of wear debris, but rather a micro fusion of the workpiece material with the electroplated abrasive layer due to the instantaneous high temperatures. The sticking can dramatically increase cutting forces and frictional heat, forming a vicious circle, which not only damages the surface integrity of the workpiece, but also causes the abrasive layer ‌ to rapidly passivate or peel off ‌, causing the grinding wheel to fail in a short period of time. According to actual application feedback, when high-requirement workpieces such as aero-engine blades are processed, the effective service life of the conventional electroplated grinding wheel can be as short as ‌ minutes ‌, and a processing person needs to frequently stop to replace the grinding wheel, so that the processing efficiency and cost are greatly influenced. Secondly, the fine cuttings generated by the conventional grinding wheel during the grinding process are retained in the grinding area and secondarily crushed due to the lack of effective chip removal channels, which not only scratches the processed surface, but also aggravates the problems of grinding heat and abrasive clogging. The cooling and the chip removal are a pair of contradictions which are related and cause each other, namely, poor cooling leads to a height of Wen Nianlian, adhesion blocks chip removal, and poor chip removal leads to cooling liquid not reaching an effective area, so that heat accumulation is aggravated. While prior improvements have attempted to alleviate this problem, each has ‌ significant drawbacks ‌. For example, patent CN114346923a devised a split type inner and outer body structure, intended to guide the cooling liquid through the inner fan blades and water storage channels. However, the structure is complex, the loosening and dynamic balance risks exist under the high-speed working condition of tens of thousands of revolutions per minute, the reliability is poor, the cooling mechanism mainly depends on ‌ passive centrifugal force drainage ‌, the low-speed surface flow is difficult to realize ‌ targeting of grinding hot spots and high-pressure impact cooling ‌, and meanwhile, the structure does not effectively solve the problems of active strong scouring and discharging of abrasive dust. Another patent CN102172898a adopts a combined structure of mechanical extrusion, and has poor manufacturing precision and limited cooling and flushing effects. Therefore, how to provide a ‌ miniature grinding wheel with stable structure and high cooling and chip removal efficiency, so as to meet the requirements of high rotation speed, long service life and high quality of small-size precise grinding is a problem to be considered by those skilled in the art. Disclosure of Invention The invention aims to provide an integrated fluid synergistic electroplating grinding wheel, which solves the problems of unstable structure, insufficient cooling, low chi