CN104227162A - ELID (electrolytic in-process dressing) technique of mine diamond bit - Google Patents
ELID (electrolytic in-process dressing) technique of mine diamond bit Download PDFInfo
- Publication number
- CN104227162A CN104227162A CN201310248444.2A CN201310248444A CN104227162A CN 104227162 A CN104227162 A CN 104227162A CN 201310248444 A CN201310248444 A CN 201310248444A CN 104227162 A CN104227162 A CN 104227162A
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- Prior art keywords
- elid
- drill bit
- dressing
- cathode
- bit
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 30
- 239000010432 diamond Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title description 8
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 19
- 239000003792 electrolyte Substances 0.000 claims abstract description 14
- 238000005065 mining Methods 0.000 claims description 22
- 238000005553 drilling Methods 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000006061 abrasive grain Substances 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract 1
- 238000002161 passivation Methods 0.000 description 12
- 238000009413 insulation Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
本发明公开了一种矿用钻头的ELID修锐技术与装置，如图所示，包括钻床本体，矿用金刚石钻头（阳极），修锐阴极，ELID电解电源，电解液供液系统等。其中ELID电解电源的阴阳极分别与修锐阴极及阳极钻头相接，当钻头进给到修锐阴极内部，并使钻头和修锐阴极有0.3-0.5mm间隙，在间隙内通上电解液，因此在阳极钻头和修锐阴极之间形成电流通路，并且使阳极钻头胎体电解，使金刚石磨粒露出，达到修锐的目的。电解完成后，旋开修锐阴极，钻头继续进给，对工件进行钻削加工。
The invention discloses an ELID sharpening technology and device for a mine drill bit, as shown in the figure, including a drill body, a mine diamond drill bit (anode), a sharpening cathode, an ELID electrolysis power supply, an electrolyte liquid supply system, and the like. Among them, the cathode and anode of the ELID electrolysis power supply are respectively connected with the sharpening cathode and the anode bit. When the drill bit is fed into the sharpening cathode, there is a gap of 0.3-0.5mm between the drill bit and the sharpening cathode, and the electrolyte is passed through the gap. Therefore, a current path is formed between the anode bit and the sharpening cathode, and the matrix of the anode bit is electrolyzed to expose the diamond abrasive grains to achieve the purpose of sharpening. After the electrolysis is completed, unscrew the sharpening cathode, and the drill bit continues to feed, and the workpiece is drilled.
Description
Technical field
The invention belongs to mining drill bit technical field, particularly relate to electrolytic in-process dressing (the ELID-Electrolytic In-process Dressing) technology of diamond-impregnated bit.
Background technology
Various geological formations is crept into through conventional diamond-impregnated bit in fields such as geological resource exploration, exploitation of mineral resources.Because the composition of rock stratum is different, varying hardness, manufacture drill bit and often select matrix formula according to rock stratum hardness, during to make to creep into, the wearing and tearing of tyre body abrasion and diamond abrasive grain adapt, to reach from sharp object, the diamond of passivation is come off in time, and bottom diamond exposes in time, ensures to continue to creep into.Therefore, can keep from sharp ability after making drill bit passivation, use the diamond-impregnated bit usually selecting corresponding matrix composition, hardness during drills for stone according to rock stratum hardness.Because different geology degree of depth rock stratum composition, hardness constantly change, with drilling depth increase drill bit to adapt to the requirement of various rock stratum, once drill bit select improper, or creep into comparatively hard formation time, diamond bit is easy to passivation and loses from sharp ability, makes drill slipping can not continue to creep into.
Can not from problem that is sharp, that skid for drill bit passivation, typical solution uses artificial dressing at present: 1) grind, self-control lap tool, apply oil, grinding agent, makes drill bit and lap tool keep relative motion, utilize lap tool to remove the diamond of carcass and passivation, reach the object of dressing;
2) pickling, soaks passivation drill bit acid solution, removes surface passivation diamond, exposes the sharp diamond of lower floor, reach the object of dressing;
3) sandblasting, utilizes gases at high pressure or water under high pressure mixing abrasive particle to be ejected into diamond bit top layer, makes the diamond drop-off of passivation, expose the sharp diamond of bottom, reach the object of dressing.
Above several method respectively has pluses and minuses; but carry out dressing after being dismantled by the drill bit of passivation after all needing shutdown; therefore drill bit drilling efficiency is very low; and need to judge diamond bit dressing state by rule of thumb after each dressing; often cause diamond bit by excessive dressing; cause waste, dressing process also can cause the secondary pollution to surrounding environment.Therefore, be not still well solved about the problem how realizing reliable, efficient dressing after diamond-impregnated bit passivation.
Summary of the invention
The present invention is by electrolytic in-process dressing technology (electrolytic in-process dressing, ELID) be incorporated in diamond-impregnated bit dressing, utilize this technology effectively will solve dressing problem after diamond-impregnated bit passivation, ensure to realize efficient dressing when not dismantling drilling tool on rig, the dressing state of diamond bit can be differentiated according to the change of dressing electric current, effectively can avoid the problem of excessive dressing.Therefore can extend drilling tool service life, improve drilling efficiency.
The present invention, based on existing drilling machine, sets up ELID dressing diamond-impregnated bit cutting tests of drilling platform.Comprise ELID dressing negative electrode and insulation system, anode and insulation system, power supply drawing-in system, electrolyte running gate system.Fig. 1 is the schematic diagram of the mining diamond bit experiment porch of ELID dressing built.
The present invention realizes like this, a kind of ELID dressing technology of mining diamond bit, it is characterized in that, described mining diamond bit ELID sharpening device comprises: 1) anode (mining diamond bit) and insulation system: as Fig. 2, diamond bit adapter and machine tool chief axis is needed to connect, adapter insulation simultaneously, avoids machine tool chief axis, lathe bed charged.Otherwise easily cause electric leakage, cause security incident.
2) electrolysis cathode is installed and insulation system: negative electrode is as Fig. 3, and negative electrode is fixing on the table by electrode suppor, and is arranged between drill bit and workpiece; When drill bit is fed into cathode internal, and keep 0.3-0.5mm gap with negative electrode, now give between anode and cathode and pass into electrolyte, antianode drill bit carries out electrolysis; Rotate to outside workbench by electrolysis cathode after electrolysis completes, then drill bit continues feeding, carries out drilling to workpiece.Electrode suppor and lathe bed insulation, avoid lathe bed charged.
3) ELID power supply drawing-in system: ELID electrolysis power is positioned at drilling machine side, and with wire, the anode of ELID power supply and negative electrode are linked on mining diamond bit and electrolysis cathode respectively, anode carbon brush is introduced, keep certain pressure with bit matrix, during bit feeding, will ensure that Faradaic current access is reliable.
4) electrolyte running gate system: electrolyte tank is positioned at the bottom of drilling machine, need electrolyte sucking-off during use with water pump, negative electrode nozzle is linked into by water pump water outlet flexible pipe, make during electrolysis to be full of electrolyte in the gap between anode and cathode, between mining diamond bit and electrolysis cathode, form current path, make the mining diamond bit bonding agent of anode by electrolysis, the diamond abrasive grain of passivation comes off, fresh diamond abrasive grain exposes, and reaches the object of dressing.
Further, as shown in Figure 4, the diamond-impregnated bit of described mining drill bit ELID dressing system has various shape, size, utilizes the present invention all can reach the object of dressing.
Further, the electrolysis cathode of described mining drill bit ELID dressing system has various shape, specifically will determine the shape and size of electrolysis cathode according to the bit size of dressing.
Further, the electrolyte tank of described mining drill bit ELID dressing system is positioned at bottom drilling machine, needs to transform traditional Drilling machines bench and base, is convenient to circulate electrolyte.
Further, the existing nozzle being positioned at bit exterior of electrolyte nozzle of described mining drill bit ELID dressing system, also has the nozzle being positioned at drill bit internal.
Further, the electrolysis cathode support of described mining drill bit ELID dressing system is movable, and can rotate around fixed axis, electrode of outwarding winding after being convenient to electrolysis carries out drilling processing.
Accompanying drawing explanation
Fig. 1 is the experiment porch of the mining diamond bit of ELID dressing.
Fig. 2 is electrolytic anode, i.e. mining flat labial surface diamond bit.
Fig. 3 is platybasic type electrolysis cathode.
Fig. 4 is conventional mining drill bit labial surface form, comprises a) stairstepping, b) zigzag, c) terraced profile of tooth, d) tapered outward, e) circular arc.
Claims (4)
1. an ELID dressing system for mining drill bit, is characterized in that, comprises mining diamond bit (anode), dressing negative electrode, ELID electrolysis power, electrolyte liquid-supplying system; Wherein the anode and cathode of ELID power supply connects respectively by cable and dressing negative electrode and anode drill bit.
2. the ELID dressing system of mining drill bit according to claim 1, it is characterized in that, electrolysis cathode has various shape, and cathode shape size is determined according to the geomery of drill bit, and ensures there is 0.3-0.5mm gap between negative electrode and drill bit.
3. the ELID dressing system of mining drill bit according to claim 1, it is characterized in that, dressing negative electrode is fixed on table base, and can rotate around fixed axis.
4. the ELID dressing system of mining drill bit according to claim 1, it is characterized in that, electrolyte tank is positioned at bottom drilling machine, is conducive to circulate electrolyte, and makes lathe overall dimensions less, rationally distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310248444.2A CN104227162A (en) | 2013-06-21 | 2013-06-21 | ELID (electrolytic in-process dressing) technique of mine diamond bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310248444.2A CN104227162A (en) | 2013-06-21 | 2013-06-21 | ELID (electrolytic in-process dressing) technique of mine diamond bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104227162A true CN104227162A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310248444.2A Pending CN104227162A (en) | 2013-06-21 | 2013-06-21 | ELID (electrolytic in-process dressing) technique of mine diamond bit |
Country Status (1)
| Country | Link |
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| CN (1) | CN104227162A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1076448A (en) * | 1996-08-30 | 1998-03-24 | Riken Seiko Kk | ELID grinding method |
| US6127642A (en) * | 1998-09-10 | 2000-10-03 | General Electric Company | Flex restrained electrical discharge machining |
| CN101264536A (en) * | 2008-05-09 | 2008-09-17 | 浙江工业大学 | Metal bond grinding wheel EDM precision shaping device |
| CN101298122A (en) * | 2008-05-09 | 2008-11-05 | 浙江工业大学 | Method for processing complex surface knife tool |
-
2013
- 2013-06-21 CN CN201310248444.2A patent/CN104227162A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1076448A (en) * | 1996-08-30 | 1998-03-24 | Riken Seiko Kk | ELID grinding method |
| US6127642A (en) * | 1998-09-10 | 2000-10-03 | General Electric Company | Flex restrained electrical discharge machining |
| CN101264536A (en) * | 2008-05-09 | 2008-09-17 | 浙江工业大学 | Metal bond grinding wheel EDM precision shaping device |
| CN101298122A (en) * | 2008-05-09 | 2008-11-05 | 浙江工业大学 | Method for processing complex surface knife tool |
Non-Patent Citations (1)
| Title |
|---|
| 杨黎健等: "轴承套圈内圆在线电解修整磨削试验", 《中国机械工程》 * |
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Application publication date: 20141224 |
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