CN205070969U - A light -operated safety switch of plain type for steel body machine tool - Google Patents
A light -operated safety switch of plain type for steel body machine tool Download PDFInfo
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- CN205070969U CN205070969U CN201520739056.9U CN201520739056U CN205070969U CN 205070969 U CN205070969 U CN 205070969U CN 201520739056 U CN201520739056 U CN 201520739056U CN 205070969 U CN205070969 U CN 205070969U
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Abstract
The utility model discloses a light -operated safety switch of plain type for steel body machine tool, including transformer, first diode, second diode, third diode, fourth diode, the 5th diode, the 6th diode, first electric capacity, second electric capacity, first resistance to the 7th resistance, first triode, second triode, third triode, relay summation potential ware. The utility model discloses the structure is enough simple, can be very convenient install at special position that the lathe was prone to accidents, this safety switch utilizes the light sensitive resister as light signal transducer, when staff or other positions are close to dangerous position, safety switch is the arresting gear of starter bed rapidly, make the lathe stop the operation, when the staff leaves the hazardous area, the lathe operation that can return to normal again, wherein pass through the resistance of adjustment potentiometre, can also change the sensitivity of light -operated circuit action, safety protection's effect has been played generally, high performance -price ratio, etc.
Description
Technical field
The utility model relates to a kind of light-operated security switch, particularly relates to a kind of plain type light-operated security switch for steel body machining tool.
Background technology
Along with the development of science and technology, modern mechanical manufacturing is played and is asked the shape of product and structure to update, also more and more higher to the requirement of the crudy of various steel body part, lathe wants basic equipment as heavy one of machinery manufacturing industry, its development causes the concern of people always, nearly 2 years, China's heavy digital control machine tool is with fastest developing speed, as heavy type numerical control plane milling and boring machine, annual production and the apparent consumption of heavy floor-type milling & boring machine and heavy-duty engine lathe etc. rank first in the world, although machine industry development rapidly, but do comparatively be short of to safeguard protection aspect, the safety switch for steel body machining tool is now too complicated, install inconvenient, high cost, overall price/performance ratio is too low.
Utility model content
The purpose of this utility model is just the plain type light-operated security switch for steel body machining tool providing a kind of high performance-price ratio in order to solve the problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises transformer, first diode, second diode, 3rd diode, 4th diode, 5th diode, 6th diode, first electric capacity, second electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance, first triode, second triode, 3rd triode, relay and potentiometer, the first end of described transformer is connected with the phase line end of AC power, second end of described transformer is connected with the zero line side of described AC power, the first end of described transformer secondary coil is connected with the positive pole of described second diode and the negative pole of described 4th diode simultaneously, second end of described transformer secondary coil is connected with the positive pole of described first diode and the negative pole of described 3rd diode simultaneously, with the negative pole of described second diode while of the negative pole of described first diode, the positive pole of described first electric capacity, the negative pole of described 5th diode, the first end of described relay coil is connected with the first end of described 3rd resistance, the positive pole of described 3rd diode simultaneously with the positive pole of described 4th diode, the first end of described first resistance, the first end of described second resistance, the first end of described 5th resistance, the first end of described second electric capacity is connected with the first end of described 7th resistance, second end of described first resistance is connected with the negative pole of described first electric capacity, second end of described second resistance is connected with the emitter of described first triode, the collector electrode of described first triode simultaneously with the positive pole of described 5th diode, second end of described relay coil is connected with the emitter of described second triode, the base stage of described first triode is connected with the collector electrode of described second triode, the base stage of described second triode is connected with the positive pole of described 6th diode, the negative pole of described 6th diode is connected with the first end of described 4th resistance and the collector electrode of described 3rd triode simultaneously, second end of described 4th resistance is connected with the second end of described 3rd resistance and the first end of described 6th resistance simultaneously, the emitter of described 3rd triode is connected with the second end of described 5th resistance, the base stage of described 3rd triode simultaneously with the second end of described second electric capacity, the first end of described potentiometer is connected with the second end of described 7th resistance, and the second end of described potentiometer is connected with the sliding end of described potentiometer and the second end of described 6th resistance simultaneously.
Particularly, described first triode and described 3rd triode are NPN type, and described second triode is positive-negative-positive, and described 7th resistance is photo resistance.
The beneficial effects of the utility model are:
The utility model structure is enough simple; the privileged sites that lathe is easier to have an accident can be arranged on very easily; this safety switch utilizes photo-resistor as optical signal sensor; when staff or other positions are near dangerous position; safety switch can start rapidly the brake apparatus on lathe; lathe is shut down; when staff leaves hazardous area; lathe can recover again to run well; wherein by the resistance of adjustment potentiometer; can also change the sensitivity of light-operated circuit action, serve the effect of safeguard protection generally, cost performance is higher.
Accompanying drawing explanation
Fig. 1 is the utility model circuit structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises transformer B, first diode D1, second diode D2, 3rd diode D3, 4th diode D4, 5th diode D5, 6th diode D6, first electric capacity C1, second electric capacity C2, first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, 5th resistance R5, 6th resistance R6, 7th resistance R7, first triode Q1, second triode Q2, 3rd triode Q3, relay K and potentiometer RP, first triode Q1 and the 3rd triode Q2 is NPN type, second triode Q2 is positive-negative-positive, 7th resistance R7 is photo resistance, the first end of transformer B primary coil is connected with the phase line end of AC power, second end of transformer B primary coil is connected with the zero line side of AC power, the first end of transformer B secondary coil is connected with the positive pole of the second diode D2 and the negative pole of the 4th diode D4 simultaneously, second end of transformer B secondary coil is connected with the positive pole of the first diode D1 and the negative pole of the 3rd diode D3 simultaneously, with the negative pole of the second diode D2 while of the negative pole of the first diode D1, the positive pole of the first electric capacity C1, the negative pole of the 5th diode D5, the first end of relay K coil is connected with the first end of the 3rd resistance R3, the positive pole of the 3rd diode D3 simultaneously with the positive pole of the 4th diode D4, the first end of the first resistance R1, the first end of the second resistance R2, the first end of the 5th resistance R5, the first end of the second electric capacity C2 is connected with the first end of the 7th resistance R7, second end of the first resistance R1 is connected with the negative pole of the first electric capacity C1, second end of the second resistance R2 is connected with the emitter of the first triode Q1, the collector electrode of the first triode Q1 simultaneously with the positive pole of the 5th diode D5, second end of relay K coil is connected with the emitter of the second triode Q2, the base stage of the first triode Q1 is connected with the collector electrode of the second triode Q2, the base stage of the second triode Q2 is connected with the positive pole of the 6th diode D6, the negative pole of the 6th diode D6 is connected with the first end of the 4th resistance R4 and the collector electrode of the 3rd triode Q3 simultaneously, second end of the 4th resistance R4 is connected with second end of the 3rd resistance R3 and the first end of the 6th resistance R6 simultaneously, the emitter of the 3rd triode Q3 is connected with second end of the 5th resistance R5, the base stage of the 3rd triode Q3 simultaneously with second end of the second electric capacity C2, the first end of potentiometer RP is connected with second end of the 7th resistance R7, and second end of potentiometer RP is connected with the sliding end of potentiometer RP and second end of the 6th resistance R6 simultaneously, and the contact of relay K is connected in lathe braking circuit, does not indicate in figure.
The utility model is a safety switch; the privileged sites that lathe is easier to have an accident can be arranged on; this safety switch utilizes photo-resistor (the 7th resistance R7) as optical signal sensor; when staff or other positions are near dangerous position; safety switch can start rapidly the brake apparatus on lathe, and lathe is shut down, when staff leaves hazardous area; lathe can recover again to run well, and serves the effect of safeguard protection.The utility model is made up of power circuit, light-operated circuit and control executive circuit, and wherein power electric routing transformer B, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 and the first capacitor C1 form; Light-operated circuit is made up of photo resistance (the 7th resistance R7), the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, potentiometer RP, the 3rd triode Q3 and the second electric capacity C2; Control executive circuit to be made up of the 5th diode D5, the 6th diode D6, the second triode Q2, the first triode Q1 and relay K.After the rectifier rectification that alternating voltage forms through transformer B step-down, the first diode D1 to the 4th diode D4 and the first electric capacity C1 filtering, for light-operated circuit with control executive circuit and provide 6V direct voltage.When light-operated security switch is in static state, 7th resistance R7 is low resistive state, 3rd triode Q3 is in cut-off state lower than 0.7V because of base voltage, its current collection very high potential, 6th diode D6, second triode Q2 and the first triode Q1 is all in cut-off state, relay K coil is not charged, its contact can not adhesive, the brake apparatus of lathe does not work, when hand is near deathtrap, photo resistance (the 7th resistance R7) is high-impedance state because light is lived by stick shift, 3rd triode Q3 becomes high potential and saturation conduction because of base stage, its collector electrode becomes electronegative potential, 6th diode D6, second triode Q2 and the equal conducting of the first triode Q1, make relay K coil charged, its normally opened contact adhesive, thus connect the brake apparatus action of lathe and shut down, after hand leaves deathtrap, photo resistance (the 7th resistance R7) reverts to low resistive state, 3rd triode Q3, second triode Q2 and the first triode Q1 all ends, relay K discharges, lathe remains in operation, wherein by the resistance of adjustment potentiometer RP, the sensitivity of light-operated circuit action can also be changed.
Claims (2)
1., for a plain type light-operated security switch for steel body machining tool, it is characterized in that: comprise transformer, first diode, second diode, 3rd diode, 4th diode, 5th diode, 6th diode, first electric capacity, second electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance, first triode, second triode, 3rd triode, relay and potentiometer, the first end of described transformer is connected with the phase line end of AC power, second end of described transformer is connected with the zero line side of described AC power, the first end of described transformer secondary coil is connected with the positive pole of described second diode and the negative pole of described 4th diode simultaneously, second end of described transformer secondary coil is connected with the positive pole of described first diode and the negative pole of described 3rd diode simultaneously, with the negative pole of described second diode while of the negative pole of described first diode, the positive pole of described first electric capacity, the negative pole of described 5th diode, the first end of described relay coil is connected with the first end of described 3rd resistance, the positive pole of described 3rd diode simultaneously with the positive pole of described 4th diode, the first end of described first resistance, the first end of described second resistance, the first end of described 5th resistance, the first end of described second electric capacity is connected with the first end of described 7th resistance, second end of described first resistance is connected with the negative pole of described first electric capacity, second end of described second resistance is connected with the emitter of described first triode, the collector electrode of described first triode simultaneously with the positive pole of described 5th diode, second end of described relay coil is connected with the emitter of described second triode, the base stage of described first triode is connected with the collector electrode of described second triode, the base stage of described second triode is connected with the positive pole of described 6th diode, the negative pole of described 6th diode is connected with the first end of described 4th resistance and the collector electrode of described 3rd triode simultaneously, second end of described 4th resistance is connected with the second end of described 3rd resistance and the first end of described 6th resistance simultaneously, the emitter of described 3rd triode is connected with the second end of described 5th resistance, the base stage of described 3rd triode simultaneously with the second end of described second electric capacity, the first end of described potentiometer is connected with the second end of described 7th resistance, and the second end of described potentiometer is connected with the sliding end of described potentiometer and the second end of described 6th resistance simultaneously.
2. the plain type light-operated security switch for steel body machining tool according to claim 1, is characterized in that: described first triode and described 3rd triode are NPN type, and described second triode is positive-negative-positive, and described 7th resistance is photo resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739056.9U CN205070969U (en) | 2015-09-23 | 2015-09-23 | A light -operated safety switch of plain type for steel body machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739056.9U CN205070969U (en) | 2015-09-23 | 2015-09-23 | A light -operated safety switch of plain type for steel body machine tool |
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| Publication Number | Publication Date |
|---|---|
| CN205070969U true CN205070969U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520739056.9U Expired - Fee Related CN205070969U (en) | 2015-09-23 | 2015-09-23 | A light -operated safety switch of plain type for steel body machine tool |
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| Country | Link |
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| CN (1) | CN205070969U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162447A (en) * | 2015-09-23 | 2015-12-16 | 成都乐也科技有限公司 | Simple light-operated safety switch for steel body machine tool |
| CN112526894A (en) * | 2020-11-03 | 2021-03-19 | 中国十九冶集团有限公司 | General personal safety protector for electromechanical equipment |
-
2015
- 2015-09-23 CN CN201520739056.9U patent/CN205070969U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162447A (en) * | 2015-09-23 | 2015-12-16 | 成都乐也科技有限公司 | Simple light-operated safety switch for steel body machine tool |
| CN112526894A (en) * | 2020-11-03 | 2021-03-19 | 中国十九冶集团有限公司 | General personal safety protector for electromechanical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20160923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |