CN113021190A - Arc-shaped grinding wheel electric spark dressing device for metal binder - Google Patents
Arc-shaped grinding wheel electric spark dressing device for metal binder Download PDFInfo
- Publication number
- CN113021190A CN113021190A CN202110273194.2A CN202110273194A CN113021190A CN 113021190 A CN113021190 A CN 113021190A CN 202110273194 A CN202110273194 A CN 202110273194A CN 113021190 A CN113021190 A CN 113021190A
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- Prior art keywords
- numerical control
- grinding wheel
- moving platform
- needle
- control moving
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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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
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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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/12—Dressing tools; Holders therefor
Abstract
The invention discloses an electric spark dressing device for a metal binder circular arc grinding wheel, which consists of a workbench base, a supporting table, a driving motor, a rotating main shaft, a pulse high-frequency power supply, a circular arc grinding wheel, a needle-shaped forming electrode, an insulating base, an X-direction numerical control moving platform, a Y-direction numerical control moving platform, a Z-direction numerical control moving platform and a numerical control system, wherein the numerical control system controls X, Y, Z three-direction numerical control moving platform to move so as to control a needle-shaped forming electrode positioned and installed on the X-direction numerical control moving platform through the insulating base, the negative electrode of the pulse high-frequency power supply is connected with the needle-shaped forming electrode, the positive electrode of the pulse high-frequency power. The device has the advantages that the grinding wheel is easy to mount and dismount, the numerical control system controls the numerical control mobile platform, the electrode is indirectly controlled to discharge along different motion tracks, the grinding wheel with any profile is trimmed, the needle-shaped electrode can quickly remove the tiny metal binder, and the device is ingenious in design and reasonable in structure.
Description
Technical Field
The invention relates to the technical field of metal bond arc grinding wheel dressing, in particular to an electric spark dressing device for a metal bond arc grinding wheel.
Background
With the rapid development of automobile, electronic, medical, aerospace and defense industries, the number of complex surface parts adopting high-performance hard and brittle materials is rapidly increased, the processing requirements are also increased, and the high-performance hard and brittle materials are as follows: the common processing modes of engineering ceramics, optical glass and the like mainly comprise traditional mechanical grinding processing, electrolytic processing, laser processing and the like, but the grinding processing is carried out on the superhard abrasive forming grinding wheel which is most effective and practical for processing precise parts with complex profiles. The arc-shaped diamond grinding wheel is adopted for grinding, and as grinding processing is carried out, the arc-shaped grinding wheel is continuously consumed and worn to passivate the grinding wheel, so that the grinding quality and efficiency are influenced, and therefore the arc-shaped grinding wheel needs to be dressed.
The method for dressing the metal-bonded diamond grinding wheel comprises a mechanical dressing method, an online electrolytic dressing method, a laser dressing method, an electric spark dressing method and the like, wherein the mechanical dressing method belongs to a contact dressing method, the dressing precision is low, the dressing tool is quickly worn, the equipment of the online electrolytic dressing method and the laser dressing method is expensive, the cost is high, the arc-shaped grinding wheel is dressed by adopting the electric spark dressing method, and spark discharge is generated at a small gap between a tool electrode and the grinding wheel during dressing so as to remove the metal-bonded agent of the arc-shaped grinding wheel.
Disclosure of Invention
Aiming at the problems of the prior art, the invention aims to provide an electric spark dressing device for a metal bond circular arc grinding wheel, which can remove the metal bond on the surface of the circular arc grinding wheel by utilizing electric spark discharge to finish the dressing of the circular arc grinding wheel.
In order to achieve the purpose, the technical scheme of the invention is as follows: an electric spark dressing device for a metal binder circular arc grinding wheel comprises a workbench base, a supporting table, a driving motor, a rotating spindle, a pulse high-frequency power supply, a circular arc grinding wheel, a needle-shaped forming electrode, an insulating base, an X-direction numerical control moving platform, a Y-direction numerical control moving platform, a Z-direction numerical control moving platform and a numerical control system.
Furthermore, the numerical control system can respectively control X, Y, Z numerical control moving platforms in three directions to move left and right, up and down and back and forth without mutual interference, the needle-shaped forming electrode is positioned and installed on the X-direction numerical control moving platform through the insulating base, the numerical control system controls X, Y, Z numerical control moving platforms in the three directions to move, further the needle-shaped forming electrode discharges at different positions on the surface of the circular arc grinding wheel, the driving motor is fixed by the supporting table, the driving motor works to drive the rotating spindle to rotate, the circular arc grinding wheel installed on the other side of the rotating spindle is controlled to rotate at a certain speed, one end of the positive pole of the pulse high-frequency power supply is connected to the circular arc grinding wheel, and one end.
Furthermore, the electrode is selected to be a needle-shaped formed electrode, the electrode material is selected to be a material with good conductivity and small electric erosion, and the diameter of the electrode is referred to the size of the single-point diamond dressing pen.
Compared with the prior art, the invention has the following effective benefits: the numerical control system can control the numerical control moving platform, and then indirectly control the feeding motion of the needle-shaped forming electrode in different directions and positions, so as to realize the electric spark discharge trimming of each position on the surface of the circular arc-shaped grinding wheel, the trimming electrode adopts the needle-shaped forming electrode, the electric spark discharge is generated by a needle head at the small gap between the electrode and the grinding wheel, the removal of small metal binders can be carried out for many times, the rotation motion of the circular arc-shaped grinding wheel is controlled by a driving motor, the rotation speed of the circular arc-shaped grinding wheel can be ensured, on the other hand, the circular arc-shaped grinding wheel is conveniently installed on a rotating main shaft and detached.
Drawings
FIG. 1 is a schematic structural diagram of the metal bond arc grinding wheel electric spark dressing device.
In the drawings: 1-a workbench base, 2-a supporting table, 3-a driving motor, 4-a rotating main shaft, 5-a pulse high-frequency power supply, 6-an arc grinding wheel, 7-a needle-shaped forming electrode, 8-an insulating base, 9-an X-direction numerical control moving platform, 10-a Y-direction numerical control moving platform and 11-a Z-direction numerical control moving platform.
FIG. 2 is a schematic view showing the structure of the needle-shaped electrode of the present invention.
In the drawings: 12-needle, 13-needle bar, 14-electrode column.
Detailed Description
Referring to the embodiment shown in the attached drawing 1, the electric spark dressing device for the metal bond circular arc grinding wheel comprises a workbench base 1, a support table 2, a driving motor 3, a rotating spindle 4, a pulse high-frequency power supply 5, a circular arc grinding wheel 6, a needle-shaped forming electrode 7, an insulating base 8, an X-direction numerical control moving platform 9, a Y-direction numerical control moving platform 10, a Z-direction numerical control moving platform 11 and a numerical control system.
The numerical control system is respectively connected with the X-direction numerical control moving platform 9, the Y-direction numerical control moving platform 10 and the Z-direction numerical control moving platform 11 to respectively perform feeding motion in all directions, the needle-shaped forming electrode 7 is installed on the X-direction numerical control moving platform 9 through the insulating base 8 and discharge at different positions is realized along with the motion of X, Y, Z three-direction numerical control moving platforms.
The electrode material of the needle-shaped electrode 7 is selected from materials with good conductivity and small electric erosion, and the diameter of the needle-shaped electrode 7 refers to the size of a single-point diamond dressing pen.
The circular arc grinding wheel 6 is arranged on one side of the driving motor 3 through the rotating spindle 4, the driving motor 3 works to drive the circular arc grinding wheel 6 to rotate, and the driving motor 3 is fixedly arranged on the supporting table 2 on the workbench base 1.
The positive pole of the pulse high-frequency power supply 5 is connected with the circular arc grinding wheel 6, and the negative pole is connected with the needle-shaped forming electrode 7.
As shown in FIG. 2, the needle-shaped electrode of the present invention comprises a needle 12, a shaft 13, and an electrode shaft 14.
The electrode column 14 is fixed on the insulating base 8 and is fixed on the X-direction numerical control moving platform 9 through the insulating base 8, the negative electrode of the pulse high-frequency power supply 5 is connected to the electrode column 14 of the needle-shaped forming electrode 7, when the electrode column works, the power supply is switched on, the needle head 12 of the needle-shaped forming electrode 7 and the circular arc grinding wheel 6 generate electric spark discharge at a certain gap, and the removal of the surface metal binder of the circular arc grinding wheel 6 is realized.
The above description is only one preferred embodiment of the present invention, and therefore, all equivalent changes or modifications in the structure, characteristics and principle of the present invention described in the claims of the present invention are included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a convex emery wheel electric spark trimming device of metal-bonded agent which characterized in that: comprises a workbench base 1, a supporting platform 2, a driving motor 3, a rotating main shaft 4, a pulse high-frequency power supply 5, an arc grinding wheel 6, a needle-shaped forming electrode 7, an insulating base 8, an X-direction numerical control moving platform 9, a Y-direction numerical control moving platform 10, a Z-direction numerical control moving platform 11 and a numerical control system, the numerical control system controls the X-direction numerical control moving platform 9 to move left and right, controls the Y-direction numerical control moving platform 10 to move up and down, and controls the Z-direction numerical control moving platform 11 to move back and forth, the needle-shaped forming electrode 7 is fixed on the insulating base 8, the insulating base 8 is installed on the X-direction numerical control moving platform 9, the positive electrode of the pulse high-frequency power supply 5 is connected with the arc-shaped grinding wheel 6, the negative electrode of the pulse high-frequency power supply is connected with the needle-shaped forming electrode 7, the arc-shaped grinding wheel 6 is installed on the driving motor 3 connected with the rotating spindle 4, and the driving.
2. The metal bond circular arc grinding wheel electric spark dressing device according to claim 1, characterized in that: the needle-shaped forming electrode 7 is positioned and installed on an X-direction numerical control moving platform 9 through an insulating base 8, a numerical control system can respectively control the movement of the X-direction numerical control moving platform 9, a Y-direction numerical control moving platform 10 and a Z-direction numerical control moving platform 11, so that the needle-shaped forming electrode 7 can be subjected to discharge trimming at different positions on the trimming surface of the circular arc grinding wheel 6, and the electric spark trimming can be performed on any profile grinding wheel by controlling the discharge of different movement tracks of the needle-shaped forming electrode 7.
3. The metal bond circular arc grinding wheel electric spark dressing device according to claim 1, characterized in that: the selected electrode is the needle-shaped forming electrode 7, the installation and the disassembly are convenient, the metal bonding agent can be quickly removed during discharge trimming, the needle-shaped forming electrode 7 is made of a material with good conductivity and small electric erosion amount, a sharp corner and a fine shape can be kept during the trimming process, and the diameter of the needle-shaped forming electrode 7 refers to the size of a single-point diamond trimming pen.
4. The metal bond circular arc grinding wheel electric spark dressing device according to claim 1, characterized in that: the supporting table 2 is fixed on the workbench base 1, the driving motor 3 is installed on the supporting table 2, the driving motor 3 works to drive the rotating spindle 4 to rotate, so that the arc-shaped grinding wheel 6 installed on the other side of the rotating spindle 4 rotates, and the arc-shaped grinding wheel 6 is convenient to install and detach.
5. The metal bond circular arc grinding wheel electric spark dressing device according to claims 1, 2, 3 and 4, characterized in that: the X-direction numerical control moving platform 9, the Y-direction numerical control moving platform 10 and the Z-direction numerical control moving platform 11 are controlled by a numerical control system to move and drive the needle-shaped forming electrode 7 to move so as to realize electric spark discharge at different positions, the circular arc grinding wheel 6 drives the connected rotating main shaft 4 to rotate through the work of the driving motor 3, and the pulse high-frequency power supply 5 is respectively connected with the circular arc grinding wheel 6 and the needle-shaped forming electrode 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110273194.2A CN113021190A (en) | 2021-03-15 | 2021-03-15 | Arc-shaped grinding wheel electric spark dressing device for metal binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110273194.2A CN113021190A (en) | 2021-03-15 | 2021-03-15 | Arc-shaped grinding wheel electric spark dressing device for metal binder |
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| CN113021190A true CN113021190A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110273194.2A Pending CN113021190A (en) | 2021-03-15 | 2021-03-15 | Arc-shaped grinding wheel electric spark dressing device for metal binder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044988A (en) * | 2022-07-06 | 2022-09-13 | 湖南弥特精密机械有限公司 | Method and equipment for removing broken needle of spinneret plate |
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| CN102009388A (en) * | 2010-10-15 | 2011-04-13 | 上海交通大学 | Miniature metal-based grinding wheel on-line electrolytic electric spark dressing device and method |
| CN102335873A (en) * | 2011-09-30 | 2012-02-01 | 重庆成俊工贸有限公司 | Numerical control formed grinding wheel finishing machine and finishing method |
| CN103203688A (en) * | 2013-03-12 | 2013-07-17 | 苏州科技学院 | Micro-scale grinding online electrolytic dressing device and method thereof |
| CN103624684A (en) * | 2013-12-05 | 2014-03-12 | 湖南大学 | Electrospark trimming device for metal binding agent superabrasive formed grinding wheel for sawtooth processing |
| US20160346900A1 (en) * | 2015-05-29 | 2016-12-01 | Inland Diamond Products Company | Retruing of a grinding wheel using edm machine |
| CN108500786A (en) * | 2018-04-22 | 2018-09-07 | 北京工业大学 | One kind being used for bearing track ultraprecise plunge grinding processing unit (plant) and method |
| CN111993228A (en) * | 2020-07-30 | 2020-11-27 | 哈尔滨理工大学 | Grinding equipment suitable for hard and brittle material processing |
-
2021
- 2021-03-15 CN CN202110273194.2A patent/CN113021190A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009388A (en) * | 2010-10-15 | 2011-04-13 | 上海交通大学 | Miniature metal-based grinding wheel on-line electrolytic electric spark dressing device and method |
| CN102335873A (en) * | 2011-09-30 | 2012-02-01 | 重庆成俊工贸有限公司 | Numerical control formed grinding wheel finishing machine and finishing method |
| CN103203688A (en) * | 2013-03-12 | 2013-07-17 | 苏州科技学院 | Micro-scale grinding online electrolytic dressing device and method thereof |
| CN103624684A (en) * | 2013-12-05 | 2014-03-12 | 湖南大学 | Electrospark trimming device for metal binding agent superabrasive formed grinding wheel for sawtooth processing |
| US20160346900A1 (en) * | 2015-05-29 | 2016-12-01 | Inland Diamond Products Company | Retruing of a grinding wheel using edm machine |
| CN108500786A (en) * | 2018-04-22 | 2018-09-07 | 北京工业大学 | One kind being used for bearing track ultraprecise plunge grinding processing unit (plant) and method |
| CN111993228A (en) * | 2020-07-30 | 2020-11-27 | 哈尔滨理工大学 | Grinding equipment suitable for hard and brittle material processing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044988A (en) * | 2022-07-06 | 2022-09-13 | 湖南弥特精密机械有限公司 | Method and equipment for removing broken needle of spinneret plate |
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Effective date of registration: 20221104 Address after: No.69 Hongguang Avenue, Banan District, Chongqing Applicant after: Chongqing University of Technology Address before: 150080 No. 52, Xuefu Road, Nangang District, Heilongjiang, Harbin Applicant before: HARBIN University OF SCIENCE AND TECHNOLOGY |