CN111300168A - Magnetic grinding method for blade edge passivation - Google Patents
Magnetic grinding method for blade edge passivation Download PDFInfo
- Publication number
- CN111300168A CN111300168A CN202010236322.1A CN202010236322A CN111300168A CN 111300168 A CN111300168 A CN 111300168A CN 202010236322 A CN202010236322 A CN 202010236322A CN 111300168 A CN111300168 A CN 111300168A
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- China
- Prior art keywords
- magnetic
- workpiece
- abrasive
- blade
- magnetic field
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/005—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using a magnetic polishing agent
Abstract
The invention relates to the technical field of blade edge passivation, in particular to a magnetic grinding method for blade edge passivation, which comprises the following steps: s1, magnetic field setting: installing a workpiece on a vertical milling machine, and adding two magnetic poles to form a magnetic field so that the workpiece is positioned between the two magnetic fields; s2, adding an abrasive: filling magnetic abrasive materials in a gap between the workpiece and the two magnetic poles, wherein the magnetic abrasive materials are adsorbed on the surfaces of the magnetic poles and the workpiece to form an abrasive brush; s3, grinding blade: under the drive of a main shaft of the vertical milling machine, the workpiece generates rotation and up-and-down feeding motion, direct current is introduced into the coil to generate a magnetic field with magnetic induction intensity, and the workpiece rotates along with the abrasive brush to grind in a magnetic field environment. The invention greatly improves the stability of the blade edge passivation quality and also prolongs the service life of the blade.
Description
Technical Field
The invention relates to the technical field of blade edge passivation, in particular to a magnetic grinding method for blade edge passivation.
Background
The sharp edge formed naturally by the intersection of the front cutter face and the rear cutter face of the blade has sharp cutting edge, poor strength and easy abrasion, and the cutting edge of the blade is passivated by using a magnetic grinding method technology, so that the strength of the cutting edge is greatly improved, the service life of the cutter is prolonged, and the blade can be used for most working conditions of finish machining, semi-finish machining and rough machining.
But the quality of blade edge passivation is comparatively unstable after technical treatment, and blade later stage life is shorter for current magnetic grinding method technique. Therefore, we propose a magnetic grinding method for blade edge passivation to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a magnetic grinding method for passivating the cutting edge of a blade.
A magnetic grinding method for passivating the cutting edge of a blade comprises the following steps:
s1, magnetic field setting: installing a workpiece on a vertical milling machine, and adding two magnetic poles to form a magnetic field so that the workpiece is positioned between the two magnetic fields;
s2, adding an abrasive: filling magnetic abrasive materials in a gap between the workpiece and the two magnetic poles, wherein the magnetic abrasive materials are adsorbed on the surfaces of the magnetic poles and the workpiece to form an abrasive brush;
s3, grinding blade: under the drive of a main shaft of the vertical milling machine, the workpiece generates rotation and up-and-down feeding motion, direct current is introduced into the coil to generate a magnetic field with magnetic induction intensity, and the workpiece rotates along with the abrasive brush to grind in a magnetic field environment.
Preferably, the magnetic field is formed by two magnetic poles having properties of S-pole and N-pole, respectively.
Preferably, the magnetic field is in a perpendicular positional relationship with the axial direction of the cylindrical surface of the workpiece.
Preferably, the abrasive brushes on the magnetic poles are distributed along the direction of magnetic lines.
Preferably, the magnetic induction of the magnetic field is 0.8T to 1.2T.
Preferably, the main shaft of the vertical milling machine generates vibration with a frequency of 25Hz and an amplitude of 2 mm.
Preferably, the magnetic abrasive is prepared by mixing iron powder and abrasive, sintering under high pressure and then crushing, wherein the abrasive is Al2O3And (5) micro-powder.
The invention has the beneficial effects that:
the invention adds a magnetic field in the direction vertical to the axis of the workpiece, and forms an abrasive brush on the magnetic pole and the surface of the workpiece, thereby grinding the blade, and simultaneously, the axial vibration with fixed frequency is added, so that the blade rotates along with the blade, the stability of the passivation quality of the blade edge is greatly improved, and the service life of the blade is also prolonged.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
A magnetic grinding method for passivating the cutting edge of a blade comprises the following steps:
s1, magnetic field setting: installing a workpiece on a vertical milling machine, and adding two magnetic poles to form a magnetic field so that the workpiece is positioned between the two magnetic fields;
s2, adding an abrasive: filling magnetic abrasive materials in a gap between a workpiece and two magnetic poles, wherein the magnetic abrasive materials are adsorbed on the magnetic poles and the surface of the workpiece to form an abrasive material brush, and the abrasive material brushes on the magnetic poles are distributed along the direction of magnetic lines of force;
s3, grinding blade: under the drive of a main shaft of the vertical milling machine, vibration with the frequency of 25Hz and the amplitude of 2mm is generated, the workpiece rotates and moves up and down in a feeding way, direct current is introduced into a coil, a magnetic field with the magnetic induction intensity of 1.0T is generated, and the workpiece rotates along with the abrasive brush to be ground in the magnetic field environment.
The magnetic field is formed by two magnetic poles with the attributes of S pole and N pole respectively, and the magnetic field and the axial direction of the cylindrical surface of the workpiece are in a vertical position relation (namely, the axial line pointing to the N pole from the S pole and the axial line of the cylindrical surface of the workpiece are in a vertical crossed state); the magnetic abrasive is prepared by mixing iron powder and abrasive, sintering under high pressure, and pulverizing, wherein the abrasive is Al2O3And (5) micro-powder.
In this embodiment, a workpiece is mounted on a vertical milling machine, magnetic poles representing an S pole and an N pole are placed on both sides of the workpiece so that a magnetic field formed by the magnetic poles is perpendicular to an axial direction of a cylindrical surface of the workpiece, and then, iron powder and Al are mixed with each other2O3The magnetic grinding material formed by mixing micro powder is filled into the gap between the workpiece and the two magnetic poles, so that the magnetic grinding material forms a grinding material brush on the surfaces of the magnetic poles and the workpiece, then the vertical milling machine is started to make the main shaft of the vertical milling machine vibrate and make the workpiece generate rotation and up-and-down feeding motion, so that the workpiece and the magnetic field generate relative motion, and the workpiece is groundAnd after the effect is finished, the power supply is turned off, and the workpiece is taken down.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A magnetic grinding method for passivating the cutting edge of a blade is characterized by comprising the following steps:
s1, magnetic field setting: installing a workpiece on a vertical milling machine, and adding two magnetic poles to form a magnetic field so that the workpiece is positioned between the two magnetic fields;
s2, adding an abrasive: filling magnetic abrasive materials in a gap between the workpiece and the two magnetic poles, wherein the magnetic abrasive materials are adsorbed on the surfaces of the magnetic poles and the workpiece to form an abrasive brush;
s3, grinding blade: under the drive of a main shaft of the vertical milling machine, the workpiece generates rotation and up-and-down feeding motion, direct current is introduced into the coil to generate a magnetic field with magnetic induction intensity, and the workpiece rotates along with the abrasive brush to grind in a magnetic field environment.
2. A magnetic grinding method for blade edge passivation according to claim 1, characterized in that the magnetic field is formed by two magnetic poles with properties of S-pole and N-pole respectively.
3. A magnetic grinding method for the passivation of the cutting edge of a blade as claimed in claim 1, characterized in that the magnetic field is in a perpendicular position to the axial direction of the cylindrical surface of the workpiece.
4. A magnetic grinding method for blade edge passivation according to claim 1, characterized in that the abrasive brushes on the magnetic poles are distributed along the direction of magnetic lines.
5. The magnetic grinding method for passivating the cutting edge of the blade according to claim 1, wherein the magnetic induction intensity of the magnetic field is 0.8T-1.2T.
6. A magnetic grinding method for the passivation of the cutting edge of a blade according to claim 1, characterized in that the spindle of the vertical milling machine generates vibrations with a frequency of 25Hz and an amplitude of 2 mm.
7. The magnetic grinding method for blade edge passivation according to claim 1, characterized in that the magnetic abrasive is formed by mixing iron powder and abrasive, sintering under high pressure and then crushing, wherein the abrasive is Al2O3And (5) micro-powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010236322.1A CN111300168A (en) | 2020-03-30 | 2020-03-30 | Magnetic grinding method for blade edge passivation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010236322.1A CN111300168A (en) | 2020-03-30 | 2020-03-30 | Magnetic grinding method for blade edge passivation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111300168A true CN111300168A (en) | 2020-06-19 |
Family
ID=71159000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010236322.1A Withdrawn CN111300168A (en) | 2020-03-30 | 2020-03-30 | Magnetic grinding method for blade edge passivation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111300168A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001266A (en) * | 2021-03-19 | 2021-06-22 | 湖南大学 | Online flexible finishing method of spherical micro-grinding tool based on electromagnetic rheological effect |
-
2020
- 2020-03-30 CN CN202010236322.1A patent/CN111300168A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001266A (en) * | 2021-03-19 | 2021-06-22 | 湖南大学 | Online flexible finishing method of spherical micro-grinding tool based on electromagnetic rheological effect |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200619 |
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| WW01 | Invention patent application withdrawn after publication |