CN104959685A - Grinding wheel spindle device and machining method for electrical discharge grinding - Google Patents
Grinding wheel spindle device and machining method for electrical discharge grinding Download PDFInfo
- Publication number
- CN104959685A CN104959685A CN201510257880.5A CN201510257880A CN104959685A CN 104959685 A CN104959685 A CN 104959685A CN 201510257880 A CN201510257880 A CN 201510257880A CN 104959685 A CN104959685 A CN 104959685A
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- Prior art keywords
- main shaft
- wheel
- spindle
- brush
- copper
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
Abstract
Provided is a grinding wheel spindle device and a machining method for electrical discharge grinding, pertaining to the technical field of electrical discharge grinding.The grinding wheel spindle device is composed of two parts including a grinding wheel spindle and transmission. A spindle of a servo motor is connected with a driving wheel. A driven wheel is connected with the driving wheel by means of a synchronous belt. The driven wheel is connected with the spindle. The spindle is fixedly connected with a spindle seat by means of front and back bearings via locking nuts. Front and back bearing caps are connected with the above bearings and fixed onto the spindle seat. Sealing rings are loaded into the front and back bearing caps. The spindle seat is connected with a motor seat by means of an insulation sleeve such that insulation is achieved between the motor seat and the spindle without conduction. One end of the spindle is connected with a spindle sleeve which is connected with a copper wheel. The copper wheel is fixed onto the spindle sleeve via a gland by utilizing a bolt. The other end of the spindle is connected with an electrode in contact with an electric brush. The electric brush is loaded into an electric brush seat. The electric brush seat is fixed onto a belt cover which is installed onto the motor seat.
Description
Technical field
The present invention relates to a kind of electric spark grinding emery wheel main shaft device and processing method, belong to electric spark grinding technical field.
Background technology
Electric spark grinding emery wheel main shaft device, is mainly used in, on electric spark grinding equipment, being discharged and produce spark between workpiece by emery wheel, removes workpiece excess stock, reach the object of grinding.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of electric spark grinding emery wheel main shaft device and processing method.
A kind of electric spark grinding emery wheel main shaft device, be made up of emery wheel main shaft and transmission two parts, the main shaft of servomotor connects driving wheel, driven pulley connects driving wheel by synchronous belt, driven pulley is connected with main shaft, main shaft is by front, rear bearing is fixedly connected with spindle drum by locking nut, before, rear bearing cover is connected with bearing, be fixed on spindle drum, before sealing ring is contained in, in rear bearing cover, spindle drum connects motor cabinet by insulation sleeve, make to insulate between motor cabinet and main shaft non-conductive, one end connecting bushing of main shaft, axle sleeve connects copper wheel, copper wheel is fixed by bolts on axle sleeve by gland, the other end connecting electrode of main shaft, electrode contact brush, brush is contained in brushgear housing, brushgear housing is fixed on belt housing, belt housing is arranged on motor cabinet
Belt housing is fixedly connected with motor cabinet, belt housing by the driving wheel of servomotor side, driven wheel cover in the side of motor cabinet.
Have insulation sleeve to be connected between electrode with brushgear housing, or belt housing adopt non-conductive insulation board.
When main shaft drives electrode rotary, brush is contacted electrode by spring pressure, and form electric current and import, electric current makes copper wheel conduct electricity by main shaft, and clamping is taken turns at the instrument of workbench and electrolytic copper and formed the machining state that discharges.
A kind of EDM Grinding method, containing following steps,
Step 1, the fixture on workbench and workbench are insulated, fixture is installed cutter to be processed; Fixture connects processing power source by wire,
Step 2, by electrode 13 contact brush 12, brush 12 is connected to brushgear housing 14, when main shaft 8 is with moving electrode 13 to rotate, brush 12 is by spring pressure contact electrode 13, brush 12 connects processing power source by wire, and form electric current and import, the electric current of processing power source makes copper wheel 5 conduct electricity by main shaft 8, or insulated with main shaft 8 by copper wheel and be connected, brush 12 directly contacts copper wheel;
Step 3, clamping form at the cutter to be processed of workbench and copper wheel 5 machining state that discharges,
Step 4, shape needs according to cutter to be processed, change shape, size that copper wheel makes corresponding cutter to be processed, carry out electric discharge copying,
The waveform parameter of step 5, the machining voltage changing processing power source, processing electric current, pulse current voltage, carries out roughing, middle processing or fine finishining.
Advantage of the present invention is that compact conformation is simple, and precision is high, and copper wheel according to the shape needs of workpiece, can be made respective shapes, size carries out cnc profiling grinding, of many uses.Can be used on various numerical control electric spark grinding equipment.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, more completely can understand the present invention better and easily learn wherein many adjoint advantages, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention, as schemed wherein:
Fig. 1 is structural representation of the present invention.
Below in conjunction with drawings and Examples, the present invention is further described.
Detailed description of the invention
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present invention belong to protection scope of the present invention.
Embodiment 1: as shown in Figure 1, a kind of electric spark grinding emery wheel main shaft device, is made up of emery wheel main shaft and transmission two parts.Emery wheel main shaft portion has gland 4, copper wheel 5, axle sleeve 6, front bearing retainer 7, rear bearing cover 11, main shaft 8, spindle drum 9, bearing 10, brush 12, electrode 13, brushgear housing 14; Running part has motor cabinet 2, servomotor 1, driving wheel 18, driven pulley 15, belt housing 17, synchronous dynamic belt 16, insulation sleeve 3.
Servomotor 1 is connected to motor cabinet 2, the main shaft of servomotor 1 connects driving wheel 18, driving wheel 18 connects driven pulley 15 by synchronous dynamic belt 16, driven pulley 15 is connected to main shaft 8, main shaft 8 is fixedly connected with spindle drum 9 by bearing 10 (forward and backward bearing) by locking nut, and front bearing retainer 7, rear bearing cover 11 are connected respectively with bearing 10, and front bearing retainer 7, rear bearing cover 11 are fixed on spindle drum 9, sealing ring 20, sealing ring 19 are contained in front bearing retainer 7, rear bearing cover 11 respectively
Spindle drum 9 connects motor cabinet 2 by insulation sleeve 3, make to insulate between motor cabinet 2 and main shaft 8 non-conductive, the other end connecting bushing 6 of main shaft 8, the other end end face of main shaft 8 is bolted pressing plate fixed hub 6, axle sleeve 6 connects copper wheel 5, copper wheel 5 connects gland 4 by set bolt, the other end connecting bushing 6 of set bolt, one end end face connecting electrode 13 of main shaft 8, electrode 13 contact brush 12, brush 12 is connected to brushgear housing 14, when main shaft 8 is with moving electrode 13 to rotate, brush 12 is by spring pressure contact electrode 13, formation electric current imports, electric current makes copper wheel 5 conduct electricity by main shaft 8, clamping is taken turns 5 at the instrument of workbench and electrolytic copper and is formed the machining state that discharges,
Belt housing 17 is fixedly connected with motor cabinet 2, the driving wheel 18 of servomotor 1 side, driven pulley 15 are covered on the side of motor cabinet 2 by belt housing 17, insulation sleeve is had to be connected between electrode 13 with brushgear housing 14, or belt housing 17 adopts non-conductive insulation board, make electrode 13 and motor cabinet 2, insulate between brushgear housing 14 and belt housing 17 non-conductive
Front bearing retainer 7 is connected to the side of spindle drum 9, sleeve pipe 21 is connected with main shaft 8, have sealing ring 20 to be connected between front bearing retainer 7 with sleeve pipe 21, rear bearing cover 11 is bolted the opposite side at spindle drum 9, has sealing ring 19 to be connected between rear bearing cover 11 with main shaft 8.
Or insulated with main shaft 8 by copper wheel 5 and be connected, brush 12 directly contacts copper wheel 5.
Embodiment 2: a kind of EDM Grinding method, containing following steps,
Step 1, the jig on workbench and workbench are insulated, jig is installed cutter to be processed; Jig connects processing power source by wire,
Step 2, by electrode 13 contact brush 12, brush 12 is connected to brushgear housing 14, when main shaft 8 is with moving electrode 13 to rotate, brush 12 is by spring pressure contact electrode 13, brush 12 connects processing power source by wire, and form electric current and import, the electric current of processing power source makes copper wheel 5 conduct electricity by main shaft 8, or insulated with main shaft 8 by copper wheel 5 and be connected, brush 12 directly contacts copper wheel 5;
Step 3, the cutter to be processed being installed on workbench and copper wheel 5 form the machining state that discharges,
Step 4, shape needs according to cutter to be processed, change shape, size that copper wheel 5 makes corresponding cutter to be processed, carry out electric discharge copying,
The waveform parameter of step 5, the machining voltage changing processing power source, processing electric current, pulse current voltage, carries out roughing, middle processing or fine finishining.
A kind of EDM Grinding method, copper wheel drives synchronous belt pulley transmission by servomotor and rotates, when electric current passes through brush, whole emery wheel main shaft portion and cutter to be processed are discharge condition, when cutter to be processed is near the copper wheel rotated, just starts and carry out electric discharge grinding.
As mentioned above, embodiments of the invention are explained, but as long as do not depart from inventive point of the present invention in fact and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation is also all included within protection scope of the present invention.
Claims (7)
1. a spark grinding emery wheel main shaft device, it is characterized in that being made up of emery wheel main shaft and transmission two parts, the main shaft of servomotor connects driving wheel, driven pulley connects driving wheel by synchronous belt, driven pulley is connected with main shaft, main shaft is by front, rear bearing is fixedly connected with spindle drum by locking nut, before, rear bearing cover is connected with bearing, be fixed on spindle drum, before sealing ring is contained in, in rear bearing cover, spindle drum connects motor cabinet by insulation sleeve, make to insulate between motor cabinet and main shaft non-conductive, one end connecting bushing of main shaft, axle sleeve connects copper wheel, copper wheel is fixed by bolts on axle sleeve by gland, the other end connecting electrode of main shaft, electrode contact brush, brush is contained in brushgear housing, brushgear housing is fixed on belt housing, belt housing is arranged on motor cabinet.
2. a kind of spark grinding emery wheel main shaft device according to claim 1, is characterized in that belt housing is fixedly connected with motor cabinet, belt housing by the driving wheel of servomotor side, driven wheel cover in the side of motor cabinet.
3. a kind of spark grinding emery wheel main shaft device according to claim 1, it is characterized in that having insulation sleeve to be connected between electrode with brushgear housing, or belt housing adopts non-conductive insulation board.
4. a kind of spark grinding emery wheel main shaft device according to claim 1, it is characterized in that when main shaft drives electrode rotary, brush is contacted electrode by spring pressure, formation electric current imports, electric current makes copper wheel conduct electricity by main shaft, and clamping is taken turns at the instrument of workbench and electrolytic copper and formed the machining state that discharges.
5. an EDM Grinding method, it is characterized in that copper wheel drives synchronous belt pulley transmission by servomotor and rotates, when electric current passes through brush, whole emery wheel main shaft portion and cutter to be processed are discharge condition, when cutter to be processed is near the copper wheel rotated, just starts and carry out electric discharge grinding.
6. a kind of EDM Grinding method according to claim 5, is characterized in that:
Step 1, the fixture on workbench and workbench to be insulated, fixture clamping cutter to be processed; Fixture connects processing power source by wire,
Step 2, by electrode contact brush, brush is connected to brushgear housing, and when main shaft drives electrode rotary, brush is contacted electrode by spring pressure, and brush connects processing power source by wire, and form electric current and import, the electric current of processing power source makes copper wheel conduct electricity by main shaft,
The next cutter to be processed at workbench of step 3, dress and copper wheel form the machining state that discharges,
Step 4, shape needs according to cutter to be processed, change shape, size that copper wheel makes corresponding cutter to be processed, carry out electric discharge copying,
The waveform parameter of step 5, the machining voltage changing processing power source, processing electric current, pulse current voltage, carries out roughing, middle processing or fine finishining.
7. a kind of EDM Grinding method according to claim 5, it is characterized in that: be connected with spindle insulating by copper wheel, brush directly contacts copper wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510257880.5A CN104959685A (en) | 2015-05-19 | 2015-05-19 | Grinding wheel spindle device and machining method for electrical discharge grinding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510257880.5A CN104959685A (en) | 2015-05-19 | 2015-05-19 | Grinding wheel spindle device and machining method for electrical discharge grinding |
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| CN104959685A true CN104959685A (en) | 2015-10-07 |
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| CN201510257880.5A Pending CN104959685A (en) | 2015-05-19 | 2015-05-19 | Grinding wheel spindle device and machining method for electrical discharge grinding |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855650A (en) * | 2016-05-10 | 2016-08-17 | 南京航空航天大学 | Double-tool-cathode electrolytic grinding and milling machining system and method for machining complicated thin wall |
| CN107159981A (en) * | 2017-07-17 | 2017-09-15 | 山东大学 | The grip device processed for how fine hole electric spark pulsed discharge synchronous rotary |
| CN107962432A (en) * | 2018-01-09 | 2018-04-27 | 河南理工大学 | A kind of clamping axis system for electrochemical grinding thin discs class workpiece |
| CN109420807A (en) * | 2017-08-31 | 2019-03-05 | 深圳市水佳鑫科技有限公司 | Hard metal electrochemistry contour grinding equipment |
| CN110153811A (en) * | 2019-05-24 | 2019-08-23 | 泰安正大自动焊机有限公司 | A kind of efficient numerically controlled compound cylindrical grinder |
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| CN2569961Y (en) * | 2002-10-09 | 2003-09-03 | 北京市电加工研究所 | Ultra-hard material electric spark machinery composite processed grinding wheel |
| CN201249313Y (en) * | 2007-08-03 | 2009-06-03 | 马家騄 | Grinder with an electric spark device |
| CN103522190A (en) * | 2013-10-31 | 2014-01-22 | 哈尔滨工业大学 | Electric spark and mechanical composite dressing device for arc diamond grinding wheel |
| CN204262531U (en) * | 2014-11-03 | 2015-04-15 | 北京凝华科技有限公司 | Grinding head shaft |
| CN204747693U (en) * | 2015-05-19 | 2015-11-11 | 深圳市鑫运祥精密刀具有限公司 | Spark -erosion grinding emery wheel spindle unit |
-
2015
- 2015-05-19 CN CN201510257880.5A patent/CN104959685A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569961Y (en) * | 2002-10-09 | 2003-09-03 | 北京市电加工研究所 | Ultra-hard material electric spark machinery composite processed grinding wheel |
| CN201249313Y (en) * | 2007-08-03 | 2009-06-03 | 马家騄 | Grinder with an electric spark device |
| CN103522190A (en) * | 2013-10-31 | 2014-01-22 | 哈尔滨工业大学 | Electric spark and mechanical composite dressing device for arc diamond grinding wheel |
| CN204262531U (en) * | 2014-11-03 | 2015-04-15 | 北京凝华科技有限公司 | Grinding head shaft |
| CN204747693U (en) * | 2015-05-19 | 2015-11-11 | 深圳市鑫运祥精密刀具有限公司 | Spark -erosion grinding emery wheel spindle unit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855650A (en) * | 2016-05-10 | 2016-08-17 | 南京航空航天大学 | Double-tool-cathode electrolytic grinding and milling machining system and method for machining complicated thin wall |
| CN107159981A (en) * | 2017-07-17 | 2017-09-15 | 山东大学 | The grip device processed for how fine hole electric spark pulsed discharge synchronous rotary |
| CN107159981B (en) * | 2017-07-17 | 2023-07-25 | 山东大学 | Clamp device for synchronous rotary machining of electric spark pulse discharge of multiple micro-holes |
| CN109420807A (en) * | 2017-08-31 | 2019-03-05 | 深圳市水佳鑫科技有限公司 | Hard metal electrochemistry contour grinding equipment |
| CN107962432A (en) * | 2018-01-09 | 2018-04-27 | 河南理工大学 | A kind of clamping axis system for electrochemical grinding thin discs class workpiece |
| CN107962432B (en) * | 2018-01-09 | 2023-09-26 | 河南理工大学 | Clamping main shaft system for electrolytic grinding of thin disc workpieces |
| CN110153811A (en) * | 2019-05-24 | 2019-08-23 | 泰安正大自动焊机有限公司 | A kind of efficient numerically controlled compound cylindrical grinder |
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Application publication date: 20151007 |
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