CN102248496B - Device for preparing ultrahard abrasive particle layer by adopting electric spark deposition method - Google Patents
Device for preparing ultrahard abrasive particle layer by adopting electric spark deposition method Download PDFInfo
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- CN102248496B CN102248496B CN 201010178670 CN201010178670A CN102248496B CN 102248496 B CN102248496 B CN 102248496B CN 201010178670 CN201010178670 CN 201010178670 CN 201010178670 A CN201010178670 A CN 201010178670A CN 102248496 B CN102248496 B CN 102248496B
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Abstract
The invention discloses a device for preparing an ultrahard abrasive particle layer by adopting an electric spark deposition method. The device comprises a working platform, a grinding wheel metal basal body and a grinding wheel basal body driving mechanism, wherein the grinding wheel metal basal body and the grinding wheel basal body driving mechanism are arranged on the working platform, the grinding wheel basal body driving mechanism is used for driving the grinding wheel metal basal body to rotate, a compression powder electrode is arranged at one side of the grinding wheel metal basal body, the compression powder electrode is arranged on a servo mechanism which can linearly move up and down in a reciprocating manner, a working solution nozzle is arranged at the other side of the grinding wheel metal basal body, a deposition power supply and control panel which can produce a discharging pulse is arranged at one side of the compression powder electrode, the anode of the deposition power supply and control panel is connected with the grinding wheel metal basal body, and the cathode of the deposition power supply and control panel is connected with the compression powder electrode. According to the device disclosed by the invention, the ultrahard abrasive layer can be deposited on the surface of the grinding wheel metal basal body, the problem that an old grinding wheel metalbasal body is difficult to recycle and is difficult to reproduce can be solved, and reproducing and green recycling of an ultrahard grinding wheel are realized.
Description
Technical field
The present invention relates to a kind of device that adopts the electric spark deposition method to prepare super-hard abrasive particle layer, adopt this device to prepare super-hard abrasive particle layer at the circumferential working face of old metallic matrix emery wheel.
Background technology
Electric spark deposition is by the spark discharge effect, the conductive material infiltration in the electrode is entered the top layer of metallic matrix, forms metallurgical binding with mother metal, makes physical chemistry and the improved a kind of technology of mechanical property of matrix surface.The electric spark deposition technology is not only improved the mechanics of material surface, metallurgical, the performances such as physics, improve the wear-resisting of material, anti-corrosion, the performances such as endurance, and satisfied in the production field requirement to the material working surface, reduced again the cost in the design of material monolithic uniformity, with its unique process characteristic, low such as heat input in the strengthening process, metallurgical binding between strengthening layer and matrix, easily realize the deposition between foreign material, the easy selection of electrode material etc., in recent years obtained applying in precision optical machinery parts manufacturing/fields such as reparation, verified that fully the electric spark deposition technology is the energy-conservation of advanced person, material-saving, one of the green manufacturing of environmental protection and re-manufacturing technology.
The electric spark deposition technology can classify as two aspects in the application of various fields: surface modification and the surface peening of (1) metal material refer to change or the raising of the characteristic such as wear-resisting, heat-resisting, corrosion-resistant, antifatigue to substrate material surface; (2) reparation of Surface Flaw mainly refers to the cut at the precision optical machinery component surface, the size restoration of the aspect such as overproof, and the size restoration of valuable higher old part also is for the again manufacturing of component of machine.
Yet, in the prior art, electric spark deposition can only be realized the deposition between metal material and the metal material usually, can not realize the electric spark deposition between metal material and the nonmetallic materials, does not also have corresponding device to realize the electric spark deposition of metallic matrix wheel face super-hard abrasive particle layer.
Summary of the invention
Can not realize the defective of the electric spark deposition of metallic matrix wheel face super-hard abrasive particle layer for existing apparatus, the present invention aims to provide a kind of device that adopts the electric spark deposition method to prepare super-hard abrasive particle layer, this device can be at emery wheel metal base surface deposition one deck super-hard abrasive particle layer, with again manufacturing and the green reclaim recycling problem that solves hard grinding wheel.
For achieving the above object, the technology used in the present invention solution is, described employing electric spark deposition method prepares the device of super-hard abrasive particle layer, comprise workbench, be contained in the emery wheel metallic matrix on the workbench and can drive the grinding wheel base body driving mechanism that this emery wheel metallic matrix rotates, its design feature is, described emery wheel metallic matrix one side is provided with the compression Powder electrode, compression powder in this compression Powder electrode is to be formed through excess pressure compacting and sintering by at least a of abrasive particle and metal dust, described compression Powder electrode is installed in one up and down reciprocatingly on the servo control mechanism of traveling priority, described emery wheel metallic matrix opposite side is provided with the working solution nozzle that working solution can be sprayed on the region of discharge between emery wheel metallic matrix and the compression Powder electrode, described compression Powder electrode one side is provided with deposition power supply and the control panel that can produce discharge pulse, the positive pole of this deposition power supply and control panel is linked to each other with the emery wheel metallic matrix by cable, and the negative pole of deposition power supply and control panel is linked to each other with the compression Powder electrode by cable.
Described compression powder is loaded in the compression Powder electrode, and when the discharge of deposition power supply, the compression powder is sprayed on the circumferential working face of emery wheel metallic matrix, during compression powder approach exhaustion, changes the compression powder and gets final product.
Described grinding wheel base body driving mechanism is by the buncher that is contained on the transmission device pedestal, the decelerator that links with buncher, and the power transmission shaft that the output shaft by adapter sleeve and decelerator links forms.
Be provided with the voltage detecting sensor that can detect in real time discharge voltage between emery wheel metallic matrix and the compression Powder electrode in described deposition power supply and the control panel.
Described buncher one side is provided with the speed regulator of regulating this buncher rotating speed.
Operation principle: open the grinding wheel base body driving mechanism, drive the rotation of emery wheel metallic matrix, then the working solution nozzle starts servo control mechanism to the interstitial fluid spray working solution between emery wheel metallic matrix and the compression Powder electrode, drives the compression Powder electrode and makes up and down reciprocatingly traveling priority; Open at last deposition power supply and control panel, when the gap between compression Powder electrode and the emery wheel metallic matrix during less than certain distance, when producing arc discharge between compression Powder electrode and the emery wheel metallic matrix, the voltage detecting sensor that is located in deposition power supply and the control panel detects in real time the discharge voltage of emery wheel metallic matrix and compression powder electrode gap and testing result is delivered to deposition power supply and control panel, when discharge voltage is lower than a certain setting value, servo control mechanism drive compression Powder electrode moves up, emery wheel metallic matrix and compression powder electrode gap can strengthen, get back to normal discharge depositing state, when discharge voltage is higher than a certain setting value, servo control mechanism drive compression Powder electrode moves down, all the time can keep normal discharge depositing duty by servo control mechanism, repeatedly move back and forth abrasive particle and at least a of metal dust that generation discharge pulse repeatedly will compress in the Powder electrode by the compression Powder electrode and be sprayed on the circumferential working face of emery wheel metallic matrix, until deposit the uniform super-hard abrasive particle layer of one deck at the circumferential working face of emery wheel metallic matrix.This device adopts vertical, so that the super-hard abrasive deposition in the compression Powder electrode.
Below the present invention made further specify.
Referring to Fig. 1 and Fig. 2, the device that employing electric spark deposition method of the present invention prepares super-hard abrasive particle layer mainly comprises the workbench 1 that is contained on the device frame, emery wheel metallic matrix 2 and grinding wheel base body driving mechanism 6 are installed in above the workbench 1, grinding wheel base body driving mechanism 6 is by transmission device pedestal 10, power transmission shaft 9, adapter sleeve 11, decelerator 12 and buncher 13 form, emery wheel metallic matrix 2 is installed in the end of power transmission shaft 9, grinding wheel base body driving mechanism 6 and speed regulator 7 are connected by cable, can control the rotating speed of emery wheel metallic matrix 2, compression Powder electrode 4 is installed on the servo control mechanism 5 of traveling priority up and down reciprocatingly, to keep normal discharging gap, working solution nozzle 3 is sprayed onto region of discharge to kerosene, deposition power supply and control panel 8 produce discharge pulse, deposition power supply and control panel 8 positive poles are connected to emery wheel metallic matrix 2 by cable, and negative pole is connected to compression Powder electrode 4 by cable.
The emery wheel metallic matrix 2 that servo control mechanism 5 is detected by the voltage detecting sensor in deposition power supply and the control panel 8 and the discharge voltage between the compression Powder electrode 4, then determine whether to produce the movement of deposition discharge pulse and control servo control mechanism 5, to keep normal discharge depositing duty, simultaneously emery wheel metallic matrix 2 rotations so just can be at the uniform super-hard abrasive particle layer of the circumferential working face deposition one deck of emery wheel metallic matrix.
Compared with prior art, the invention has the beneficial effects as follows: this device can be at emery wheel metal base surface deposition one deck super-hard abrasive particle layer, solve old sand wheel metallic matrix and reclaimed difficulty, made again hard problem, realized again manufacturing and the green reclaim recycling of hard grinding wheel.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of apparatus of the present invention;
Fig. 2 is the structural representation of Fig. 1 medium plain emery wheel matrix driving mechanism.
In the drawings:
The 1-workbench, 2-emery wheel metallic matrix, 3-working solution nozzle,
4-compresses Powder electrode, the 5-servo control mechanism, and 6-grinding wheel base body driving mechanism,
The 7-speed regulator, 8-deposition power supply and control panel, the 9-power transmission shaft,
10-transmission device pedestal, the 11-adapter sleeve, the 12-decelerator,
The 13-buncher, 14-device frame.
The specific embodiment
A kind of device that adopts the electric spark deposition method to prepare super-hard abrasive particle layer, referring to Fig. 1 and Fig. 2, comprise the workbench 1 that is contained on the device frame 14, be contained in the emery wheel metallic matrix 2 on the workbench 1, be contained in the grinding wheel base body driving mechanism 6 that can drive 2 rotations of emery wheel metallic matrix on the workbench 1, described emery wheel metallic matrix (2) one sides are provided with compression Powder electrode 4, compression powder in this compression Powder electrode 4 is to be formed through excess pressure compacting and sintering by at least a of abrasive particle and metal dust, described compression Powder electrode 4 is installed in one up and down reciprocatingly on the servo control mechanism 5 of traveling priority, described emery wheel metallic matrix 2 opposite sides are provided with the working solution nozzle 3 that working solution can be sprayed on the region of discharge between emery wheel metallic matrix 2 and the compression Powder electrode 4, described compression Powder electrode 4 one sides are provided with deposition power supply and the control panel 8 that can produce discharge pulse, the positive pole of this deposition power supply and control panel 8 is linked to each other with emery wheel metallic matrix 2 by cable, and the negative pole of deposition power supply and control panel 8 is linked to each other with compression Powder electrode 4 by cable.
Described grinding wheel base body driving mechanism 6 is by the buncher 13 that is contained on the transmission device pedestal 10, the decelerator 12 that links with buncher 13, and the power transmission shaft 9 that the output shaft by adapter sleeve 11 and decelerator 12 links forms.Described buncher 13 1 sides are provided with the speed regulator 7 of regulating these buncher 13 rotating speeds.
Be provided with the voltage detecting sensor that can detect in real time discharge voltage between emery wheel metallic matrix 2 and the compression Powder electrode 4 in described deposition power supply and the control panel 8.
2 rotations of emery wheel metallic matrix are by grinding wheel base body driving mechanism 6 driven rotary, and rotating speed can not be too high, can rotating speed be transferred to 0～10 m/min by speed regulator 7.This device can be with the abrasive particle in the compression Powder electrode and at least a circumferential working face that deposits to the metal wheel metallic matrix of metal dust, at the uniform super-hard abrasive particle layer of the circumferential working face deposition one deck of emery wheel metallic matrix.
At least a of abrasive particle in the described compression Powder electrode 4 and metal dust forms through excess pressure compacting and sintering; take diamond compression split electrode as example; the mass ratio of diamond, cobalt powder, red copper powder is 18: 22: 60; sintering temperature is 650 ℃～800 ℃; logical inert gas is protected; in order to avoid oxidation, sintering time is to be advisable in 3～3.5 hours, cools to room temperature with the furnace.Described compression powder is loaded in the compression Powder electrode 4, and when the discharge of deposition power supply, the compression powder is sprayed on the circumferential working face of emery wheel metallic matrix, during compression powder approach exhaustion, changes the compression powder and gets final product.
This device can manufacture the independently electric spark deposition device that a cover is exclusively used in the abrasive grain layer preparation, also can be to transforming on the existing spark-erosion machine tool, increase grinding wheel base body driving mechanism and speed regulator, adopt special compression Powder electrode, also can realize the preparation of abrasive grain layer, thereby realize the expansion of common spark-erosion machine tool function.
Claims (4)
1. device that adopts the electric spark deposition method to prepare super-hard abrasive particle layer, comprise workbench (1), be contained in the emery wheel metallic matrix (2) on the workbench (1) and can drive the grinding wheel base body driving mechanism (6) that this emery wheel metallic matrix (2) rotates, described emery wheel metallic matrix (2) one sides are provided with compression Powder electrode (4), compression powder in this compression Powder electrode (4) is to be formed through excess pressure compacting and sintering by abrasive particle and metal dust, described compression Powder electrode (4) is installed in one up and down reciprocatingly on the servo control mechanism of traveling priority (5), described emery wheel metallic matrix (2) opposite side is provided with the working solution nozzle (3) that working solution can be sprayed on the region of discharge between emery wheel metallic matrix (2) and the compression Powder electrode (4), described compression Powder electrode (4) one sides are provided with deposition power supply and the control panel (8) that can produce discharge pulse, the positive pole of this deposition power supply and control panel (8) is linked to each other with emery wheel metallic matrix (2) by cable, and the negative pole of deposition power supply and control panel (8) is linked to each other with compression Powder electrode (4) by cable; It is characterized in that, described compression Powder electrode (4) is, the mass ratio of diamond, cobalt powder, red copper powder is 18:22:60, and sintering temperature is 650
OC~ 800
oC, logical inert gas is protected, in order to avoid oxidation, sintering time is 3 ~ 3.5 hours, cools to room temperature with the furnace.
2. employing electric spark deposition method according to claim 1 prepares the device of super-hard abrasive particle layer, it is characterized in that, described grinding wheel base body driving mechanism (6) is by the buncher (13) that is contained on the transmission device pedestal (10), the decelerator (12) that links with buncher (13), the power transmission shaft (9) that the output shaft by adapter sleeve (11) and decelerator (12) links forms.
3. employing electric spark deposition method according to claim 1 prepares the device of super-hard abrasive particle layer, it is characterized in that, be provided with the voltage detecting sensor that can detect in real time discharge voltage between emery wheel metallic matrix (2) and the compression Powder electrode (4) in described deposition power supply and the control panel (8).
4. employing electric spark deposition method according to claim 2 prepares the device of super-hard abrasive particle layer, it is characterized in that, described buncher (13) one sides are provided with the speed regulator (7) of regulating this buncher (13) rotating speed.
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| CN 201010178670 CN102248496B (en) | 2010-05-21 | 2010-05-21 | Device for preparing ultrahard abrasive particle layer by adopting electric spark deposition method |
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| CN 201010178670 CN102248496B (en) | 2010-05-21 | 2010-05-21 | Device for preparing ultrahard abrasive particle layer by adopting electric spark deposition method |
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| CN102248496B true CN102248496B (en) | 2013-10-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308296A (en) * | 2014-10-01 | 2015-01-28 | 青岛理工大学 | Metal microstructure direct forming method based on electric spark discharging deposition additive manufacturing |
| CN109352543A (en) * | 2018-12-05 | 2019-02-19 | 华侨大学 | A kind of semi-automatic abrasive material spray equipment preparing single layer abrasive material Gelatin finish film |
| CN112975752B (en) * | 2021-01-28 | 2022-11-11 | 合肥速纳工程设计有限公司 | Sand grain collecting device of grinding machine |
Citations (3)
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|---|---|---|---|---|
| US5127924A (en) * | 1991-07-01 | 1992-07-07 | Russell Jeffrey D | Hard particle coated grinding wheel |
| CN100408241C (en) * | 2005-12-21 | 2008-08-06 | 湖南大学 | Electric spark-mechanical compound shaping method of metal bindnig agent extra hard abradant sand wheel |
| CN201762431U (en) * | 2010-05-21 | 2011-03-16 | 湖大海捷(湖南)工程技术研究有限公司 | Device for preparing super-hard abrasive particle layer by utilizing electric spark deposition method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58165966A (en) * | 1982-03-25 | 1983-10-01 | Asahi Daiyamondo Kogyo Kk | Inner circumferential type diamond grinding wheel |
| JP3648442B2 (en) * | 2000-09-22 | 2005-05-18 | トヨタ自動車株式会社 | Grinding wheel manufacturing method, grinding wheel manufacturing apparatus, and grinding wheel |
| JP4167810B2 (en) * | 2001-02-14 | 2008-10-22 | トヨタ自動車株式会社 | Grinding wheel manufacturing method, grinding wheel manufacturing apparatus, and grinding wheel |
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2010
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Patent Citations (3)
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|---|---|---|---|---|
| US5127924A (en) * | 1991-07-01 | 1992-07-07 | Russell Jeffrey D | Hard particle coated grinding wheel |
| CN100408241C (en) * | 2005-12-21 | 2008-08-06 | 湖南大学 | Electric spark-mechanical compound shaping method of metal bindnig agent extra hard abradant sand wheel |
| CN201762431U (en) * | 2010-05-21 | 2011-03-16 | 湖大海捷(湖南)工程技术研究有限公司 | Device for preparing super-hard abrasive particle layer by utilizing electric spark deposition method |
Non-Patent Citations (5)
| Title |
|---|
| Katsushi FURUTANI, et al..Fabrication of Abrasive Layer Using Dispersion of Hard Powder by Electrical Discharge Machining (1st Report) Dispersion of Insulating Powder into Deposit.《International Journal of Electrical Maching》.2004,(第9期),第15-20页. * |
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