CN103506722A - Electric spark pendulum grinding machining method - Google Patents
Electric spark pendulum grinding machining method Download PDFInfo
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- CN103506722A CN103506722A CN201310149025.3A CN201310149025A CN103506722A CN 103506722 A CN103506722 A CN 103506722A CN 201310149025 A CN201310149025 A CN 201310149025A CN 103506722 A CN103506722 A CN 103506722A
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Abstract
An electric spark pendulum grinding machining method aims to overcome the defects that when taper holes of carbide blades are traditionally machined and formed through electric sparks, a preparation period is long, cost is high and machining adaptability is poor. The electric spark pendulum grinding machining method is characterized in that the axial line of a tool electrode and the axial line of a main shaft form an angle which is 10 degrees to 70 degrees, and the tool electrode rotates at high speed and simultaneously rotates around the axial line of the main shaft; when the tool electrode is fed downwards relative to a blade workblank along the axial line of the main shaft, pulse sparks are generated between the tool electrode and a carbide blade to carry out discharge corrosion removal; the tool electrode is fed towards the carbide blade continuously along with the continuous proceeding of the discharge corrosion removal, and thus a taper hole is machined on the carbide blade. Through the adoption of the method, the machining of the taper holes of the carbide blades can be completed, and the electric spark pendulum grinding machining method has the advantages of being high in efficiency, good in machining quality, capable of saving forming time, electrode manufacturing time and cost and the like.
Description
Technical field
The present invention relates to electric spark machining field, and especially a kind of electric spark pendulum grinds the method for processing.
Background technology
During with traditional spark-erosion sinking processing rigid alloy blade bellmouth, first need to prepare shaped electrode, make to produce that the preparatory period is long, cost is high and flexibility (adaptability) of operation is poor.And because discharging gap is little, cause chip removal difficulty, and be therefore easy to cause carbon distribution, when serious, easily produce electric arc.And due to the effect of capacity effect, the surface quality that very difficult acquisition is higher.Electric spark milling adopts simple electrode according to certain track, to do building motion under the control of digital control system, by the electric discharge of the diverse location between simple electrode and workpiece, processes needed workpiece shape.Owing to processing, thereby effectively reduce capacity effect under the relatively little working (finishing) area state of maintenance, can obtain lower surface roughness.But because it controls complexity, precision is not high, be not suitable for bellmouth processing.
Summary of the invention
The object of the invention is the method that preparatory period shortcoming long, that cost is high and flexibility (adaptability) of operation is poor proposes when solving traditional spark-erosion sinking processing rigid alloy blade bellmouth a kind of electric spark pendulum grinds processing.
Described a kind of electric spark pendulum grinds the method for processing, it is characterized in that: in process, tool-electrode axis becomes the angle of 10 ~ 70 ° with main-shaft axis, in the time of tool-electrode High Rotation Speed, around main-shaft axis, rotates; Tool-electrode during along main-shaft axis to lower feeding, will produce pulse feature spark discharge ablation with respect to blade blank between tool-electrode and blade; Along with carrying out continuously of electric discharge removal, tool-electrode is constantly to blade feeding, thereby on carbide chip, processes bellmouth.
The invention has the beneficial effects as follows: not only can complete processing and there is processing rigid alloy blade bellmouth, and efficiency is high, crudy is good, save the advantages such as shaped electrode Production Time and cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further detailed.
Fig. 1: electric spark pendulum grinds process principle figure.
Wherein, the 1. pulse power; 2. stick electrode; 3. blade blank.
The specific embodiment
Specific embodiment: tool-electrode is stick electrode, as shown in Figure 1, stick electrode (2) center lines of electrodes OZ and machine shaft OM intersect into θ angle, and θ is that 10 ~ 70 °，Cheng Ci angles are pivot angle.When work, stick electrode (2) integral body when OZ rotates is rotated around OM, so electrode has just produced swing.Meanwhile, main shaft moves downward under the effect of machine tool control system, and when arriving certain interval, the pulse power (1) produces pulsed discharge, constantly blade blank (3) material is removed, and finally processes qualified workpiece.
The processing of electric spark pendulum stone roller, owing to having larger difference with common spark machined in building motion, thereby shows following features: 1. electric spark pendulum grinds and processes simple, normal electrode processing, expense and the time of having saved electrode fabrication of adopting.Improve working (machining) efficiency, reduced processing cost.
2. in process, due to the rotation of stick electrode (2) with around the gyration of central shaft, the processing stand that makes to discharge constantly changes, thereby has avoided the concentrated electric discharge in spark machined; And along with constantly rotation and revolution of stick electrode (2), and the liquid flow disturbance causing thus, make galvanic corrosion product also than being easier to, be taken up hill and dale out of territory, work area.Therefore, electric spark pendulum grinds processing, has effectively solved chip removal difficulty, the concentrated problem of discharging in spark processing, has avoided arc discharge and short circuit phenomenon, has greatly improved process stability and working (machining) efficiency.
3. owing to adding between stick electrode in man-hour (2) and blade blank (3), exist relative motion to be conducive to the improvement of surface roughness.In addition, the effective relative area that adds stick electrode in man-hour (2) and blade blank (3) is very little, thereby make interelectrode capacity very little, and the monolithic devices not adopting as shaping work is in the face of closing, there is larger interelectrode capacity, so that the individual pulse discharge energy of the actual generation in Cheng Dang processing district is compressed to behind a certain boundary, just can not effectively compress again.Therefore the method can be utilized very little individual pulse energy, carries out fine finishining and microstoning, than common spark machined, can reach better surface quality.
Claims (1)
1. electric spark pendulum grinds a method for processing, it is characterized in that: in process, tool-electrode axis becomes the angle of 10 ~ 70 ° with main-shaft axis, in the time of tool-electrode High Rotation Speed, around main-shaft axis, rotates; Tool-electrode during along main-shaft axis to lower feeding, will produce pulse feature spark discharge ablation with respect to blade blank between tool-electrode and blade; Along with carrying out continuously of electric discharge removal, tool-electrode is constantly to blade feeding, thereby on carbide chip, processes bellmouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149025.3A CN103506722A (en) | 2013-04-26 | 2013-04-26 | Electric spark pendulum grinding machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149025.3A CN103506722A (en) | 2013-04-26 | 2013-04-26 | Electric spark pendulum grinding machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103506722A true CN103506722A (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310149025.3A Pending CN103506722A (en) | 2013-04-26 | 2013-04-26 | Electric spark pendulum grinding machining method |
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| CN (1) | CN103506722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493320A (en) * | 2014-11-14 | 2015-04-08 | 成都市宏山科技有限公司 | Rotation deflection control device |
| CN107639313A (en) * | 2017-09-28 | 2018-01-30 | 中国航发动力股份有限公司 | A kind of electrical discharge machining is oriented to actuator and method for drilling |
-
2013
- 2013-04-26 CN CN201310149025.3A patent/CN103506722A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493320A (en) * | 2014-11-14 | 2015-04-08 | 成都市宏山科技有限公司 | Rotation deflection control device |
| CN107639313A (en) * | 2017-09-28 | 2018-01-30 | 中国航发动力股份有限公司 | A kind of electrical discharge machining is oriented to actuator and method for drilling |
| CN107639313B (en) * | 2017-09-28 | 2018-11-30 | 中国航发动力股份有限公司 | A kind of electrical discharge machining guiding actuator and method for drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |