CN201067822Y - Wire cutting machine tool molybdenum filament break brake device - Google Patents
Wire cutting machine tool molybdenum filament break brake device Download PDFInfo
- Publication number
- CN201067822Y CN201067822Y CNU2007201127700U CN200720112770U CN201067822Y CN 201067822 Y CN201067822 Y CN 201067822Y CN U2007201127700 U CNU2007201127700 U CN U2007201127700U CN 200720112770 U CN200720112770 U CN 200720112770U CN 201067822 Y CN201067822 Y CN 201067822Y
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- CN
- China
- Prior art keywords
- motor
- cutting machine
- circuit
- wire
- molybdenum wire
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a broken wire braking device for the molybdenum wire of a linear cutting machine, which relates to the braking device of a motor, in particular to a motor braking device which is used when the molybdenum wire of a linear cutting machine are broken. The utility model is characterized in that the utility model comprises a detecting circuit for the breaking of the molybdenum wire of a linear cutting machine. The circuit consists of a current transformer and a time-base circuit which is connected with the input end of a singlechip, the output end of which is connected with a motor braking circuit that comprises a switch tube and a relay; the normally open contacts of the relay is serially connected with the phase lines of a group of direct current power supply and a group of motor alternating power supply. By detecting the motor running current of a molybdenum wire running motor with the detecting circuit for the breaking of the molybdenum wire, the utility model can timely start the braking circuit of the molybdenum wire running motor, fast brake the rotation of the motor to protect the molybdenum wire from being affected when the molybdenum wire are broken. The utility model can be applied in various linear cutting machines.
Description
Technical field
The utility model relates to a kind of dynamic braking device, the dynamic braking device during particularly a kind of wire cutting machine tool molybdenum filament fracture of wire.
Background technology
Detection when the prior art wire cutting machine tool does not have the molybdenum filament fracture of wire and dynamic braking device.When causing the molybdenum filament fracture of wire, the continuation high speed rotating of motor causes a large amount of wastes of molybdenum filament.
Summary of the invention
The purpose of this utility model provides a kind of wire cutting machine tool molybdenum filament fracture of wire brake apparatus.
The technical scheme that its technical problem that solves the utility model adopts is: this device comprises motor braking circuits; Its architectural feature is to have wire cutting machine tool molybdenum filament fracture of wire testing circuit, wire cutting machine tool molybdenum filament fracture of wire testing circuit is made up of current transformer and time base circuit, a phase line of AC power of motor is passed the current transformer primary coil, the current transformer secondary coil is connected with regulator rectifier circuit, regulator rectifier circuit is connected with time base circuit, the time base circuit output is connected with the single-chip microcomputer input, the single-chip microcomputer output is connected with motor braking circuits, motor braking circuits comprises switching tube and relay, and relay normally open contact is connected in series mutually with the phase line of one group of dc source and one group of AC power of motor.
The beneficial effects of the utility model are by the detection of the disconnected testing circuit of molybdenum filament to molybdenum filament operation motor operating current, when the molybdenum filament fracture of wire, can start molybdenum filament operation motor braking circuits in real time, the rotation of fast braking motor, and the protection molybdenum filament is unaffected.The utility model can be applicable to all kinds of wire cutting machine tools.
Description of drawings
The utility model is described in further detail below by accompanying drawing.
Accompanying drawing 1 is an electrical schematic diagram of the present utility model.
The specific embodiment
Consult Fig. 1.Single-chip microcomputer is the PIC16C54 8-bit microcontroller of U.S. Microchip company among the figure.
The disconnected testing circuit of wire cutting machine tool molybdenum filament is made up of current transformer LT and time base circuit NE555, arbitrary phase line of AC power of motor passed current transformer LT primary coil, current transformer LT secondary coil is connected with regulator rectifier circuit, regulator rectifier circuit is connected with time base circuit NE555, time base circuit NE555 output is connected with single-chip microcomputer PIC16C54 input I/O (1) input, single-chip microcomputer PIC16C54 output I/O (2) is connected with the motor D braking circuit, motor braking circuits comprises switching tube G and relay J, and the relay J normally opened contact is connected in series mutually with any one group of phase line of the communication power supply of one group of dc source (+) and one group of motor D.
The running current of wire cutting machine tool molybdenum filament operation motor when normally moving with the molybdenum filament fracture of wire is different, the wire cutting machine tool testing circuit is by the detection to molybdenum filament operation motor operating current, when the molybdenum filament fracture of wire, start molybdenum filament operation motor braking circuits, the rotation of fast braking motor in real time by the monolithic function.
Claims (1)
1. a wire cutting machine tool molybdenum filament fracture of wire brake apparatus comprises motor braking circuits; It is characterized in that having wire cutting machine tool molybdenum filament fracture of wire testing circuit, wire cutting machine tool molybdenum filament fracture of wire testing circuit is made up of current transformer and time base circuit, a phase line of AC power of motor is passed the current transformer primary coil, the current transformer secondary coil is connected with regulator rectifier circuit, regulator rectifier circuit is connected with time base circuit, the time base circuit output is connected with the single-chip microcomputer input, the single-chip microcomputer output is connected with motor braking circuits, motor braking circuits comprises switching tube and relay, and relay normally open contact is connected in series mutually with the phase line of one group of dc source and one group of AC power of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201127700U CN201067822Y (en) | 2007-07-31 | 2007-07-31 | Wire cutting machine tool molybdenum filament break brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201127700U CN201067822Y (en) | 2007-07-31 | 2007-07-31 | Wire cutting machine tool molybdenum filament break brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201067822Y true CN201067822Y (en) | 2008-06-04 |
Family
ID=39489194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201127700U Expired - Fee Related CN201067822Y (en) | 2007-07-31 | 2007-07-31 | Wire cutting machine tool molybdenum filament break brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201067822Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345653A (en) * | 2014-10-09 | 2015-02-11 | 赵崇谊 | Control device of electrombile intelligent drum brake anti-theft lock |
-
2007
- 2007-07-31 CN CNU2007201127700U patent/CN201067822Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345653A (en) * | 2014-10-09 | 2015-02-11 | 赵崇谊 | Control device of electrombile intelligent drum brake anti-theft lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20090831 |