CN2438106Y - Automation device for laser testing power - Google Patents

Abstract

The utility model discloses a detection automation device for laser power. The utility model is mainly composed of a master control board, a shutter, a display, a keyboard, a printer and a power supply, and the master control board is composed of a central processing unit and a peripheral circuit thereof, a shutter control circuit, a data acquisition circuit, a display circuit, etc. The utility model utilizes the central processing unit to control automatically the opening of the shutter, data sampling, and data recording and processing, the sampled data is displayed, and processed results are printed by the printer, which reduces error, saves man power and material resources and ensures the safety of operation crews.

Description

Laser power detects automation equipment

The utility model relates to a kind of robotization pick-up unit, refers to a kind of both can the realization laser power meter tool calibrating robotization especially, can realize that again laser power detects automation equipment.

Laser metrology is operated in the laser application and plays important foundation stone effect always, and setting up the laser metrology standard set-up, carrying out laser metrology utensil compulsory verification is to ensure accurate, the reliable unique channel of laser value.Current, laser metrology utensil verification process is to adopt manual operations mostly, manually controls shutter, and hand-kept and deal with data are easily introduced personal error; And, in operating process, need two staff at least, take a lot of work, time-consuming.For higher-wattage laser metrology utensil, also there is bigger potential safety hazard in the manual operations calibrating.

In view of the foregoing, the purpose of this utility model provides a kind of laser power and detects automation equipment, and this device both can have been realized can realizing again that to laser powermeter calibrating robotization laser power detects robotization; And, the program in the device is made an amendment slightly, also can be used for the detection robotization of other parameter of laser.

For achieving the above object, the utility model adopts following design proposal: a kind of laser power detects automation equipment, and this device mainly is made up of several parts of master control borad, shutter, display, keyboard, printer and power supply, it is characterized in that:

Described master control borad is to be made of central processing unit and peripheral circuit thereof, shutter control circuit, data acquisition circuit, display circuit, keyboard interface circuit, printer interface circuit;

Described central processing unit and peripheral circuit thereof comprise central processing unit, electricity erasable memorizer (EPROM), parallel I/O mouth extended chip and serial i/O mouth chip; The P0 mouth of described central processing unit links to each other with the least-significant byte address mouth A0～A7 of EPROM chip through address latch; The P2 mouth of central processing unit links to each other with most-significant byte address mouth A8～A15 of EPROM; The P0 mouth of central processing unit, data port D0～D7 of EPROM link to each other with the AD0～AD7 of parallel I/O mouth chip; Serial port RXD, the TXD of central processing unit links to each other with the control end of serial i/O mouth chip;

Described data acquisition circuit comprises two-way three and half A/D converters, precision resistor and integrated voltage stabilizing chip; The Vx pin of two-way A/D converter links to each other with power meter analog signal output to be checked with reference power meter respectively; Two-way A/D converter Vr pin links to each other with the sliding end of precision resistor respectively; Data output end D0～D3, the DS1～DS4 of two-way A/D converter links to each other with the parallel I/PA of O mouth extended chip, PB mouth; The two-way A/D converter control end EOC link to each other with P1.2, the P1.3 of central processing unit respectively;

Described shutter control circuit is made of relay, transistor, photoelectrical coupler and six inverter buffers/driver; Central processing unit P1.4 end links to each other with the input end of buffer/driver, the output terminal of buffer/driver links to each other with the input end of photoelectrical coupler, the output terminal of photoelectrical coupler links to each other with the base stage of transistor T, and transistorized collector links to each other with the coil of relay;

Described master control borad links to each other the keyboard scan state by serial port RXD, TXD, the shift register of central processing unit with described keyboard;

PA mouth, PB mouth, PC mouth, the section of described master control borad by I/O mouth extended chip latch/decipher/and chip for driving, latch/decipher/chip for driving links to each other with described display (being the LED light emitting diode).

Described shutter is made up of exotic material molybdenum, d-c solenoid, heat-barrier material asbestos and support.

Potentiometer in the described data acquisition circuit is accurate turn knob potentiometer.

Further specify below in conjunction with accompanying drawing.

Fig. 1 is a system chart of the present utility model;

Fig. 2 is the utility model master control borad circuit theory diagrams;

Fig. 3 is Fig. 2 A partial circuit schematic diagram;

Fig. 4 is Fig. 2 B partial circuit schematic diagram;

Fig. 5 is the shutter control circuit circuit diagram;

As shown in Figure 1, the utility model adopts singlechip technology to realize laser power is detected robotization.This device mainly is made up of master control borad 1, shutter 2, display 3, keyboard 4, printer 5 and power supply more than 6 parts.Master control borad is again to be made of central processing unit and peripheral circuit, data acquisition circuit, shutter control circuit and display circuit, keyboard interface circuit, printer interface circuit.

This device master control borad links to each other with shutter by shutter control circuit, the opening and closing of control shutter; Master control borad shows the detection data by display circuit, display; Link to each other with keyboard by keyboard interface circuit; Link to each other with printer by printer interface circuit; Master control borad is with the laser power signal that detects, and through the A/D conversion, data processing is printed at last.

Before measurement, the user determines range, measures parameters such as number of times, measuring method by keyboard, central processing unit (being single-chip microcomputer) is according to the programmed acquisition data of working out in advance, it is the laser power value on the readout power meter, and the data of gathering are handled, at last, by printer result is shown and print.In testing process, central processing unit is according to the program timing pilot relay, opens or closes shutter by relay, finishes surveying work.

As Fig. 2, Fig. 3, shown in Figure 4, master control borad is to be made of central processing unit and peripheral circuit thereof, data acquisition circuit, shutter control circuit, display circuit, keyboard interface circuit, printer interface circuit.

Central processing unit and peripheral circuit thereof comprise that central processing unit is electricity erasable memorizer (EPROM) U2, parallel I/O mouth extended chip U3 (8155) and dual serial I/O mouth U15, the U16 (74LS164) of single-chip microcomputer U1 (8031), 64K.Central processing unit U1 is the 8-bit microprocessor of MCS51 series, does not have ROM in the sheet, so the EPROM electricity erasable memorizer U2 of expansion 64K; Because the I/O mouth that central processing unit itself provides uses inadequately, increase I/O mouth extended chip again.

The P0 mouth of central processing unit U1 links to each other with least-significant byte address mouth A0～A7 of EPROM chip U2 through address latch U4 (74LS373); The P2 mouth of U1 links to each other with most-significant byte address mouth A8～A15 of U2; Link to each other with AD0～AD7 of I/O mouth chip U3 RXD, the TXD of U1 of the P0 mouth of U1, data port D0～D7 of U2 links to each other with the control end of serial i/O mouth U15, U16.

The utility model needs standard for manual sampling power meter and power meter two-way simulating signal to be checked, so this device has used the two-way A/D converter in testing process; Again owing to common power meter shows with 3 half tables, so this device has adopted two 3 half double oblique integral formula A/D converters.

As Fig. 2, shown in Figure 4, this device data acquisition circuit comprises A/D converter U5, U6 (MC14433), 2.5V voltage stabilizing chip U7, U8 (HC1403) and precision resistor F1, F2 (WXD2-534).The Vx pin of U5, U6 links to each other with power meter analog signal output to be checked with reference power meter respectively, and the Vr pin links to each other with precision resistor F1, F2 respectively; Data output end D0～D3, the DS1～DS4 of U5, U6 links to each other with PA, the PB mouth of parallel I/O mouth extended chip U3; The two-way A/D converter control end EOC link to each other with P1.2, the P1.3 of central processing unit respectively.In data acquisition, A/D converter becomes digital signal with the analog signal conversion of gathering, and sends central processing unit to.In data acquisition, might be because voltage instability, interference such as signal drift, data acquisition is inaccurate, so the present invention has designed two precision resistors on the shell of device, the operator can be by adjusting precision resistor, regulate the reference voltage of A/D conversion, the data that make collection are within allowed band.

This device display circuit section of comprising latchs/deciphers/and chip for driving U9, U10, U11, U12 (MC14513), position are latched/are deciphered/chip for driving U13, U14 (MC1413) and display (being the LED light emitting diode).

Master control borad links to each other with keyboard through serial port RXD, TXD, the shift register U15 (74LC164) of central processing unit U1, and 2 row control lines of keyboard link to each other the keyboard scan state with P1.6, the P1.7 of central processing unit respectively.

This device printer interface circuit is the socket of one 25 pins, and this socket links to each other with the P0 mouth of central processing unit; 11 pin of this socket link to each other with the P1.5 of central processing unit; 1 pin of this socket by one or the door link to each other with P2.5, the WR of central processing unit.

As shown in Figure 5, shutter control circuit is made of relay J, transistor T (9031), photoelectrical coupler TIL117 and six inverter buffers/driver SN7407; Central processing unit P1.4 end links to each other with the input end of buffer/driver SN7407, the output terminal of buffer/driver SN7407 links to each other with the input end of photoelectrical coupler, the output terminal of photoelectrical coupler links to each other with the base stage of transistor T, and transistorized collector links to each other with the coil of relay.Central processing unit is held pilot relay by P1.4, by the unlatching of relay control shutter.

Because during relay work, be easy to generate electromagnetic interference (EMI), so, between central processing unit and relay, use photoelectric coupler isolation.In addition, the control signal of central processing unit P1.4 mouth output must could drive relay coil through amplifying, so the control signal of central processing unit P1.4 end output links to each other with relay coil through the two-stage amplification of buffer/driver SN7407, transistor T.In relay J adhesive and disconnection process; because there is inductance in relay coil; so can produce higher induced voltage at the two ends of coil; easily make transistor damage; so diode D in parallel at the relay coil two ends; the induced voltage that relay coil is produced discharges through diode D, and transistor T is protected.

The shutter of the similar camera of shutter shape of the present utility model mainly is made up of refractory metal molybdenum, heat-barrier material asbestos, d-c solenoid, iron prop and support etc.Its principle of work is: be switched on or switched off the 24V direct current of shutter coil by the central processing unit pilot relay, by electromagnetic induction shutter opened or closed.When central processing unit P1.4 end output high level, relay is connected the cable release loop current, produces the iron prop of electromagnetic attraction hub of a spool, and iron prop moves, and the heating resisting metal molybdenum sheet that is connected on the iron prop is opened, and laser beam is passed through; On the contrary, for closing shutter.There is shell the shutter outside, and shell surface has one deck asbestos to a side inside surface of laser, is used for blocking by heating resisting metal molybdenum beam reflected, avoid reflexing to other places, produce harm, also can avoid forming simultaneously a new thermal source, cause error to testing, have certain novelty.

Storing control program and data processor among this device master control borad EPROM, central processing unit are controlled the unlatching of shutter automatically according to program, and sampled data is handled the data that detect, and at last the result is printed.Because the utility model adopts central processing unit to control the work of whole device, so realize opening and closing automatically shutter, record and data processing automatically, reduced error, saved human and material resources, realized laser metrology utensil calibrating robotization.

Claims (3)

1, a kind of laser power detects automation equipment, and this device mainly is made up of several parts of master control borad, shutter, display, keyboard, printer and power supply, it is characterized in that:

Described master control borad is to be made of central processing unit and peripheral circuit thereof, shutter control circuit, data acquisition circuit, display circuit, keyboard interface circuit, printer interface circuit;

Described central processing unit and peripheral circuit thereof comprise central processing unit, electricity erasable memorizer (EPROM), parallel I/O mouth extended chip and serial i/O mouth chip; The P0 mouth of described central processing unit links to each other with the least-significant byte address mouth A0～A7 of EPROM chip through address latch; The P2 mouth of central processing unit links to each other with most-significant byte address mouth A8～A15 of EPROM; The P0 mouth of central processing unit, data port D0～D7 of EPROM link to each other with the AD0～AD7 of parallel I/O mouth chip; Serial port RXD, the TXD of central processing unit links to each other with the control end of serial i/O mouth chip;

Described data acquisition circuit comprises two-way three and half A/D converters, precision resistor and integrated voltage stabilizing chip; The Vx pin of two-way A/D converter links to each other with power meter analog signal output to be checked with reference power meter respectively; Two-way A/D converter Vr pin links to each other with the sliding end of precision resistor respectively; Data output end D0～D3, the DS1～DS4 of two-way A/D converter links to each other with the parallel I/PA of O mouth extended chip, PB mouth; The two-way A/D converter control end EOC link to each other with P1.2, the P1.3 of central processing unit respectively;

Described shutter control circuit is made of relay, transistor, photoelectrical coupler and six inverter buffers/driver; Central processing unit P1.4 end links to each other with the input end of buffer/driver, the output terminal of buffer/driver links to each other with the input end of photoelectrical coupler, the output terminal of photoelectrical coupler links to each other with the base stage of transistor T, and transistorized collector links to each other with the coil of relay;

Described master control borad links to each other with shutter by shutter control circuit, control shutter unlatching or close;

Described master control borad links to each other the keyboard scan state by serial port RXD, TXD, the shift register of central processing unit with described keyboard;

PA mouth, PB mouth, PC mouth, the section of described master control borad by I/O mouth extended chip latch/decipher/and chip for driving, latch/decipher/chip for driving links to each other with described display (being the LED light emitting diode).

2, laser power automatic detection device according to claim 1 is characterized in that:

Described shutter is made up of exotic material molybdenum, d-c solenoid, heat-barrier material asbestos and support.

3, laser power automatic detection device according to claim 1 is characterized in that:

Potentiometer in the described data acquisition circuit is accurate turn knob potentiometer.

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