CN2258443Y - Automatic controller for electric spark wire-electrode cutting - Google Patents
Automatic controller for electric spark wire-electrode cutting Download PDFInfo
- Publication number
- CN2258443Y CN2258443Y CN 95218623 CN95218623U CN2258443Y CN 2258443 Y CN2258443 Y CN 2258443Y CN 95218623 CN95218623 CN 95218623 CN 95218623 U CN95218623 U CN 95218623U CN 2258443 Y CN2258443 Y CN 2258443Y
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- China
- Prior art keywords
- controller
- utility
- model
- cutting
- triode
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- Expired - Fee Related
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Abstract
The utility model relates to an automatic controller for electric spark wire-electrode cutting, comprising a power supply general contactor KA1, a controller switch K, a power supply transformer BK1, bridge-type rectifiers D1-D4, indicating lamps EL1-EL4, relays J1, J2 and a logic circuit not-and gate Z1. The utility model is characterized in that the controller is provided with a high frequency input translator BK2, and the primary pole of the BK2 only has a high-current coil of one winding. The controller is also provided with a delay circuit composed of capacitanceC3, a triode BG2, and resistance R6. The utility model is arranged on a linear cutting machine. When once ths failure appears or the cutting is finished, the utility model can automatically stop; the automaticity of wire-cutting is enhanced.
Description
The utility model is the invention about the Wire EDM automatic controller, particularly be the design of the unattended controller of a kind of Wire EDM.
In the prior art, general wire cutting machine tool only has fortune silk power contactor and gauge tap, when needs line cutting work, open gauge tap, system enters duty, the cutting of fortune silk, when cutting finishes, turn off power supply, system quits work, this traditional line cutting action must have people's supervision on duty.
In case break down or cut and finish, if the operator on duty leaves the scene or do not note slightly, workbench just can not lock stepper motor, appoint X, the Y planker is operation downwards fast, easily fracture of wire, and the molybdenum filament of having no progeny twines the stuck motor of wire storage cylinder easily, if untimely cutting off the electricity supply can make motor burn out.
In view of the problem that known technology exists, the purpose of this utility model aims to provide the unattended automatic controller of a kind of Wire EDM.
The utility model is finished as follows, entire controller includes the total contactor KA1 of power supply, controller switches K, power transformer BK1, bridge rectifier D 1-D4, indicator lamp EL1-EL4, relay J 1, J2, logic circuit NAND gate Z1, principal character of the present utility model is to be provided with high frequency input translator BK2 on controller, and high frequency input translator BK2 elementary has only the big current coil of a circle, and this controller also is provided with the delay circuit of being made up of C3, BG2 and R6 simultaneously.
The utility model compared with prior art, and is reliable, and the automaticity height alleviates labor intensity of operating personnel.
The utility model has following accompanying drawing
Fig. 1 is an electrical structure schematic diagram of the present utility model
Accompanying drawing has been represented structure of the present utility model and embodiment, arrange each relevant details and operation principle thereof of stating embodiment below more in conjunction with the accompanying drawings, KA2 on the accompanying drawing is a lathe fortune silk power-supply controller of electric, KA3 is that frequency modulation suits contactor on the Machine Tool Circuit control panel, BK2 high-frequency converter in the accompanying drawing is made up of elementary and inferior polar figure, just the utmost point is associated in the high-frequency circuit by the big current coil of a circle, when high-frequency electrical by the time change consumption, adopt high frequency magnetic core to adapt to the high frequency characteristics secondary coil simultaneously and be made up of the hasty and careless colo(u)r streak of 2000 circle 0.06m/m, it can induce the 1-10V pulse voltage just can open not circuit Z1 through the over commutation metapedes.
When lathe is in normal operating conditions, high-frequency input signal is after the conversion of BK2 high-frequency converter, through D5 rectification, C2 filtering, obtain high voltage and 1 end of input logic circuit NAND gate Z1 again, DC voltage U is through R6, frequency modulation suits the normally opened contact closure that contacts KA3, so another input Z at logic circuit NAND gate Z1 produces high level, in the output generation low level of Z1, so the base voltage of BG1 can not make into conducting, the The whole control circuit can not move, machine safety work.
When battery main switch KW closes, KA2 gets, fortune silk work beginning, have only and the contact of plug-in strip K is got to 1 KA1 earlier get, the normally opened contact closure of KA1, the road is initially located in duty, and AC power is through bridge rectifier D 1-D4, through C1 filtering, produce the forward dc voltage U on capacitor C 1 higher level's utmost point road again.When cutting is finished or during the short circuit fracture of wire, because high-frequency converter does not detect signal, then the input voltage of high-frequency signal input point is zero, and then the output resultant signal of logic circuit NAND gate is a high voltage, then BG1 conducting, relay J 1 conducting, then the normally-closed contact of J1 disconnects, fortune silk power-supply controller of electric KA2 outage, and the work of fortune silk stops, simultaneously, the normally opened contact closure of J1, after the several seconds, dc source U is added to the base stage of BG2 lentamente through R6, the BG2 conducting, relay J 2 gets electric, and the normally-closed contact of J2 disconnects, relay K A1 dead electricity, the normally opened contact of KA1 recovers reset condition, have only when reworking or after fault gets rid of, again the contact of plug-in strip K with 1 contact after, disconnect again, with 2 connections, auxiliary control circuit is resumed work then.
Claims (2)
1, the unattended controller of a kind of Wire EDM includes power contactor KA1, controller switches K, power transformer BK1, bridge rectifier D
1-D
4, indicator lamp EL
1-EL
4, relay J
1, J
2, logic circuit NAND gate Z1 is characterized in that: the output termination BG of logic circuit NAND gate Z1
1Base stage, this triode BG
1Colelctor electrode be provided with relay J
1, J
1The control delay circuit, so-called delay circuit is triode BG
2Base stage and power supply between series resistor R
6And normally opened contact J
1, at BG
2Be provided with capacitor C between base stage and the ground
3, triode BG
2Colelctor electrode be provided with relay J
2, again by J
2Control power contactor KA1 determines the lathe action.
2, the unattended controller of Wire EDM as claimed in claim is characterized in that, two inputs of logic circuit NAND gate Z1, and a termination frequency modulation suits the normally opened contact of contactor KA3, another termination high-frequency converter BK
2, described high frequency input translator elementary has only a circle current coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95218623 CN2258443Y (en) | 1995-07-24 | 1995-07-24 | Automatic controller for electric spark wire-electrode cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95218623 CN2258443Y (en) | 1995-07-24 | 1995-07-24 | Automatic controller for electric spark wire-electrode cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2258443Y true CN2258443Y (en) | 1997-07-30 |
Family
ID=33867086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95218623 Expired - Fee Related CN2258443Y (en) | 1995-07-24 | 1995-07-24 | Automatic controller for electric spark wire-electrode cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2258443Y (en) |
-
1995
- 1995-07-24 CN CN 95218623 patent/CN2258443Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |