JPS645726A - Electric discharge processing machine - Google Patents
Electric discharge processing machineInfo
- Publication number
- JPS645726A JPS645726A JP16168487A JP16168487A JPS645726A JP S645726 A JPS645726 A JP S645726A JP 16168487 A JP16168487 A JP 16168487A JP 16168487 A JP16168487 A JP 16168487A JP S645726 A JPS645726 A JP S645726A
- Authority
- JP
- Japan
- Prior art keywords
- dispersion value
- discharge
- processing
- abnormal
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
PURPOSE:To avoid abnormal processing by calculating the dispersion value of interpolar resistance dropping time as the passage time with a dispersion value calculator, judging thereupon eventual abnormal processing, and by changing over the electrode regular pullup condition automatically. CONSTITUTION:A Td measuring apparatus 12 measures the no-load time Td of each discharge waveform, and on the basis of the result therefrom a discharge waveform classifier 13 classifies discharge pulses into immediate discharge D1, normal discharge D2, and open D3, which is counted by counters 14-16, and according to the determined frequency a controller 18 makes servo feeding of electrode. On the other hand, the dispersion value of the interpolar resistance dropping time Tc of each discharge waveform measured by a Tc measuring apparatus 26 is calculated by a Tc dispersion value calculator 28 with the aid of a memory 27. A processing condition judging device 29 judges whether processing is normal upon the Tc dispersion value exceeding the specified level, and if abnormal, a controller 30 makes automatic changeover of the electrode regular pullup condition. This avoids abnormal processing certainly to accomplish stable and effective processing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62161684A JPH0675807B2 (en) | 1987-06-29 | 1987-06-29 | Electric discharge machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62161684A JPH0675807B2 (en) | 1987-06-29 | 1987-06-29 | Electric discharge machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS645726A true JPS645726A (en) | 1989-01-10 |
JPH0675807B2 JPH0675807B2 (en) | 1994-09-28 |
Family
ID=15739881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62161684A Expired - Lifetime JPH0675807B2 (en) | 1987-06-29 | 1987-06-29 | Electric discharge machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0675807B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0463625A (en) * | 1990-06-29 | 1992-02-28 | Fanuc Ltd | Discharge machining device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59205225A (en) * | 1983-05-04 | 1984-11-20 | Mitsubishi Electric Corp | Electric discharge machining device |
JPS60259321A (en) * | 1984-06-06 | 1985-12-21 | Mitsubishi Electric Corp | Electric discharge machine |
JPS61111818A (en) * | 1984-11-05 | 1986-05-29 | Mitsubishi Electric Corp | Spark erosion apparatus |
-
1987
- 1987-06-29 JP JP62161684A patent/JPH0675807B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59205225A (en) * | 1983-05-04 | 1984-11-20 | Mitsubishi Electric Corp | Electric discharge machining device |
JPS60259321A (en) * | 1984-06-06 | 1985-12-21 | Mitsubishi Electric Corp | Electric discharge machine |
JPS61111818A (en) * | 1984-11-05 | 1986-05-29 | Mitsubishi Electric Corp | Spark erosion apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0463625A (en) * | 1990-06-29 | 1992-02-28 | Fanuc Ltd | Discharge machining device |
Also Published As
Publication number | Publication date |
---|---|
JPH0675807B2 (en) | 1994-09-28 |
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