CN2199867Y - Stamping state monitor for press - Google Patents

Abstract

The utility model belongs to a stamping state monitor for a pressing machine, which solves the problems that a mould can be damaged in the process of movement, the mould which is abraded and used continuously can generate waste products, and the stamping process technology is hard to perform analysis. The control system of the utility model adopts a single chip computer, the alarm tonnage input switch of a panel is connected with the input/output interface of the control system, the panel is provided with buttons, the control system is provided with software, and thus the monitor towards a pressing machine is achieved. The alarm tonnage input switch of the panel can be used to set an abrasion control tonnage of the mould, a moving control tonnage of the mould position and a machine abnormal state control tonnage so as to prolong the life time of the mould and enhance the product quality. The utility model can be used for the on-line monitoring of the stamping process for the pressing machine.

Description

Stamping state monitor for press

The utility model belongs to lathe punching press state monitoring device, is applicable to the monitoring of all kinds press machine tool punching press state.

In the prior art, also be not specifically designed to the instrument of monitor force lathe punching press state, the device and the equipment that substitute at present are more.As publication number is the patent application document of CN86210552U, discloses a kind of " hot-die forcing press microcomputer universal monitor apparatus ".It is the center with a single board computer, and configuration preamplifier, peak-holding circuit, programmable analog amount input template, digital I/O parallel templates, programmable interval timer, programmable parallel interface chip, read-only storage, random access memory and pulse transducer, cooperate realization peak load power, temperature, dry oil lubrication, workpiece to be absorbed parameters such as energy and flywheel output energy with software and monitor." hotdie forging press " that Germany Ohmic Co., Ltd (EUMOCO) produces, load spike power monitor 8080 microprocessors, configuration preamplifier, peak-holding circuit, A/D converter and other digital element; Temperature monitor is made up of numeral, analog element; Dry oil lubrication monitors and machine processes is controlled a shared 8080A microprocessor and other digital element is realized.

Above-mentioned monitor is used for the hot forging process monitoring, when it is used for press machine tool punching press condition monitoring, and the irrelevant parameter of monitoring many (as temperature, dry oil lubrications etc.), system constitutes complicated, and stability is not high.When above-mentioned monitor is used for monitor force lathe punching press state, fails to solve mould and move at work and cause mould to damage, continue after the die wear to use to produce waste product and punch machining process is difficult to analyze these problems.

The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of press machine tool punching press status monitor is provided.This watch-dog can avoid machine tool mould to be shifted at work causing mould to damage and the generation waste product is continued to use in machine tool mould wearing and tearing back, and provides reliable and effective data or Presentation Graphics intuitively for the analysis of punch machining process and research.This watch-dog is simple in structure, and stability is high.

The utility model is achieved in that on " hot-die forcing press microcomputer universal monitor apparatus " basis, replaced single board computer as control centre with single-chip microcomputer, because single-chip microcomputer has timer internal, so saved programmable interval timer, replaced programmable analog amount input template with modulus conversion chip, asked for the pressure peak signal by the Mathematical Modeling in the software and saved peak-holding circuit.Therefore, digital to analog converter, analog-digital converter, panel status indicator lamp and controlling alarm, program storage, data storage, digital parallel I/O module, keyboard and show that control all directly is connected with the control centre single-chip microcomputer; Analog-digital converter is connected with amplification module, amplification module is connected with pressure sensor.

Operate as normal indicator lamp on the watch-dog mainframe box front panel and overload light are connected on two pins of single-chip microcomputer P1 mouth by connecting line respectively, and the acoustic alarm loudspeaker that is positioned at this mainframe box is connected on the delivery outlet of the dual time base oscillator of being controlled by a pin of single-chip microcomputer P1 mouth.Relay in the control system is connected on the pin of single-chip microcomputer P1 mouth by reverser.

Warning tonnage input switch is arranged on the watch-dog mainframe box front panel, and this input switch is made up of one to three BCD toggle switch, and warning tonnage input switch links to each other with parallel I/O mouth chip in the single-chip computer control system.A SR is arranged on the watch-dog mainframe box rear board, two toggle switch, they link to each other with parallel I/O mouth chip in the single-chip computer control system by pull-up resistor.

The signal output part parallel connection of internal signal amplification module of the present utility model one voltage follower, then with the voltage follower output signal by "+" utmost point and " " be connected on respectively on two binding posts that are positioned on the watch-dog mainframe box rear board, when these two binding posts connect impulsive force scope (this scope is oscillograph or recorder), just but impact Reeb shape is observed, thereby provides reliable and effective data or Presentation Graphics intuitively for the analysis of punch machining process and research.

The software that cooperates above-mentioned hardware is design like this: handle by the Mathematical Modeling in the software and amplify after the pressure signal that analog-to-digital conversion is come; obtain peak point; then through being presented on the panel with the decimal system behind the numerical operation; then with this value and exist the lathe specified tonnage value (or limit tonnage value) in the data storage to compare; if load peak power show value is greater than specified tonnage value (or limit tonnage value); then export a low level from a pin of single-chip microcomputer P1 mouth by software control; make the alarm lamp on the panel bright; another pin of P1 mouth is exported a high level; make sound alarm circuit work; carry out acoustic alarm; export a high level signal by the software control SCM system from a pin of P1 mouth and make relay work; thereby closing presure lathe power supply reaches the protection lathe; prolong the purpose in lathe life-span.When show value during less than specified tonnage value (or limit tonnage value); then read monitoring tonnage value from the panel input switch; the setting of this monitoring tonnage value is can be rule of thumb bigger by 5%～10% than the mould of the new sharpening peak load show value when the optimum position; if show value is greater than this monitoring tonnage value in the process; then by software inquiry output sound; visual alarm; to enter monitoring programme again after 3～5 seconds; if continuous three times since show value report to the police greater than monitoring tonnage; then export a high level signal from a pin of P1 mouth and make relay work by the software control SCM system; thereby closing presure lathe power supply; remind the operator to adjust position or the sharpening of mould on workbench; more mold exchange reaches protection mould and the purpose of avoiding producing waste product.If show value then repeats monitoring programme less than this monitoring tonnage value in the process.

The utility model compared with prior art has following characteristics:

1. simple in structure, compact, good stability.The utility model except that pressure sensor remainder all in a cabinet, so simple in structure, compact.The utility model has taked three measures to improve the stability of a system, one: control centre has adopted the good single-chip microcomputer of anti-interference, but not single board computer or system's machine; Its two: adopt Mathematical Modeling in the software to ask for the pressure peak signal and obtain without peak-holding circuit; Its three: remainder is all in the cabinet of a maskable external interference except that pressure sensor.

2. can avoid mould to be shifted at work and cause mould to damage.The utility model is equipped with a warning tonnage input switch on panel, this switch directly is connected on single-chip computer control system parallel I/O mouth, with this switch die shift monitoring tonnage value is set, the value of load shock power will increase when mould is shifted then at work, if surpass die shift monitoring tonnage, then the utility model will be reported to the police by sound, light and be reminded operator's Correction Die position, thereby improve the quality of products and prolong die life.

3. can in time remind operator's sharpening or mold exchange more, avoid producing waste product.By the warning tonnage input switch on the panel die wear tonnage monitoring value is set, when the working time lengthening, mould will be worn and torn gradually, thereby load spike power is increased, when load spike power surpasses setting value, the utility model will be by sound, light warning reminding operator's sharpening or mold exchange more, thereby guarantees product quality and boost productivity.

4. can provide the information basis for the analysis and the research of punch machining process.The signal output part parallel connection of internal signal amplification module of the present utility model one voltage follower, then with the voltage follower output signal by "+" utmost point and " " be connected on respectively on the rear board on two binding posts, impact Reeb shape is observed but be connected on these two binding posts just with oscillograph or register instrument, thereby provides the information basis for the analysis and the research of punch machining process.

5. solved the inaccurate problem in sensor installation site in the prior art.The utility model has been pointed out the best region that sensor is installed first theoretically by after a large amount of finite element analysis computation to bed piece.

Fig. 1 is that the utility model constitutes block diagram

Fig. 2 is singlechip CPU and program storage, data storage circuit connection diagram

Fig. 3 is control demonstration figure

Fig. 4 is single-chip microcomputer parallel I/O mouth figure

Fig. 5 is single-chip microcomputer analog-to-digital conversion figure

Fig. 6 is display board figure

Fig. 7 is single-chip microcomputer power supply figure

Fig. 8 is simulation part power supply figure

Fig. 9 is amplification module figure

Figure 10 is single-chip microcomputer digital-to-analogue conversion figure

Figure 11 is external connection keyboard socket figure

Figure 12 is external printer socket figure

Figure 13 is the relay working circuit diagram

Figure 14 is sound and light alarm signal plug figure

Figure 15 is the optical alarm circuit schematic diagram

Figure 16 is signal mode number conversion input overvoltage protection figure

Figure 17 is running state of programs control circuit figure

Figure 18 is the sound alarm circuit schematic diagram

Figure 19 is the pressure sensor installation diagram

Figure 20 is watch-dog mainframe box front panel figure

Figure 21 is watch-dog mainframe box rear board figure

Figure 22 is the monitor software program flow diagram

Among Fig. 1: the 1st, single-chip microcomputer, the 2nd, pressure sensor, the 3rd, amplification module, the 4th, analog-digital converter, the 5th, digital to analog converter, the 6th, panel status indicator lamp and controlling alarm, the 7th, program storage, the 8th, data storage, the 9th, digital parallel I/O module, the 10th, keyboard and demonstration control, the 11st, digital switch quantity output, the 12nd, the input of panel control data, the 13rd, display board, the 14th, input keyboard.

Among Figure 19: the 2nd, pressure sensor.

Among Figure 20: the 1st, display board, the 2nd, SR, the 3rd, acoustic alarm switch, the 4th, panel warning tonnage input switch, the 5th, normal condition indication, the 6th, overload indication.

Among Figure 21: the 1st, normally open contact, the 2nd, normally closed interlock, the 3rd, standby binding post, the 4th, waveform output cathode, the 5th, waveform output negative pole, the 6th, power input hole, the 7th, pressure sensor and main frame gang socket, the 8th, button 3,9th, button 2,10th, button 1.

Described in detail below in conjunction with accompanying drawing.

The utility model is linked to each other by a cable with the watch-dog main frame by pressure sensor and forms.Press machine tool punching press status monitor main frame is the center with single-chip microcomputer (1); Pressure sensor (2) links to each other with amplification module (3); Amplification module (3) links to each other with analog-digital converter (4); Analog-digital converter (4), digital to analog converter (5), panel status indicator lamp and controlling alarm (6), program storage (7), data storage (8), digital parallel I/O module (9), keyboard and demonstration control (10) directly link to each other with single-chip microcomputer (1); Numeral parallel I/O module (9) links to each other with panel warning tonnage input switch (12), digital switch quantity output (11); Keyboard and demonstration control 10) link to each other with display board (13).Wherein digital to analog converter (5) can connect external drive equipment, and input keyboard (14) can connect the make amendment work of internal data of keyboard.The hardware circuit of above-mentioned formation press machine tool punching press status monitor.Utilization is solidificated in the software in the program storage (7), in the signal of sending here by analog-digital converter (4), identify the pressure peak signal, the pressure peak signal is accomplished the slick and sly processing of waveform digitization, utilize the Mathematical Modeling of setting up in the software to find out peak point, show current period maximum pressure tonnage value with the decimal system, and by the output of software inquiry control figure switching value (11), panel status indicator lamp and controlling alarm (6).The cloth subsides situation of pressure sensor (2) is such: it is attached on the lathe sidewall, is the center of circle with workbench and the inboard point of lathe side cross spider, and radius is 300 millimeters the interior lathe sidewall areas of semicircle scope.Accompanying drawing 1 has provided the block diagram of the utility model monitoring host computer.Electronic component and connection thereof, the relation of polarity sees that accompanying drawing 2 is to accompanying drawing 18, wherein as follows about the matching relationship of socket: the socket X1 in the accompanying drawing 2 matches with the socket X14 shown in the accompanying drawing 14, socket X2 shown in the accompanying drawing 3 matches with the socket X5 shown in the accompanying drawing 6, socket X3 in the accompanying drawing 4 directly links to each other with warning tonnage input switch on the panel, preceding 10 pin among the socket X4 match with the X17 in the accompanying drawing, socket X9 in the accompanying drawing 9 matches with the socket X15 shown in the accompanying drawing 16, socket X12 in the accompanying drawing 11 is used for external standard 5 * 5 keyboards, and socket X11 is used for external mini-printer shown in the accompanying drawing 12.The annexation of all the other elements to shown in the accompanying drawing 18, is the line relation of accompanying drawing 2 to the thin table of all element names in the accompanying drawing 18 and each element pin as accompanying drawing 2 below.

Code name in the model name quantity circuit

2864 integrated packages, 1 IC1

2764 integrated packages, 1 IC2

74LS373 integrated package 1 IC3

8031 integrated packages, 1 IC4

GAL20V8 integrated package 1 IC5

8279 integrated packages, 1 IC6

74LS138 integrated package 1 IC7

7406S integrated package 1 IC8

7406 integrated packages, 1 IC9

ADC0809 integrated package 1 IC10

8255 integrated packages, 1 IC11

DAC0832 integrated package 1 IC12

LM358 integrated package 1 IC13

MC1413 integrated package 1 IC14

556 integrated packages, 1 IC15

LM741 integrated package 1 I1

ICL7650 integrated package 2 I2 I3

MC7905T integrated package 1 A1

MC7805T integrated package 1 A2

TL431LP integrated package 2 Q1 Q2

L4960 integrated package 1 N1

JRC-19F8 relay 1 J1

10PIN socket 6 X1 X3 X9 X14 X15 X17

2PIN socket 4 S3 S4 X6 X8

3PIN socket 2 X7 X13

4PIN socket 1 X10

16PIN socket 2 X4 X12

20PIN socket 3 X2 X5 X11

Resistance:

403 2 R29 R30

432 1 R21

502 2 R23 R24

503 1 R35

512 1 R22

323 1 R36

8.2K 1 R1

10K 3 R40 R42 R44

100K 1 R41

202 1 R37

204 2 R31 R32

221 4 R12 R14 R16 R19

103 2 R33 R34

104 2 R27 R28

150K 1 R43

153 1 R20

102 10 R2 R3 R13 R15 R17

R18 R25 R26 R38 R39

680 8 R4 R5 R6 R7 R8

R9 R10 R11

Polarity free capacitor

0.01uf 1 C30

0.1uf 2 C11 C12

30p 2 C2 C3

222 1 C8

226 1 C10

227 2 C5 C6

333 1 C7

338 1 C9

0.1uf 13 C17 C18 C19 C20 C21

C22 C23 C24 C25 C26

C27 C28 C29

Electrochemical capacitor

5uF 1 E2

10uf 1 C1

47uf 2 C13 C14

200uF 1 E1

100uf 2 C15 C16

Other class components:

BYW80 fast diode 1 V5

IN4007 diode 11 D1 D2 D3 D4 D5

D6 D7 D8 D9 D10 D 11

9012 triodes, 4 V1 V2 V3 V4

Voltage-stabiliser tube 7 Z1 Z2 Z3 Z4 Z5 Z6 Z7

PRES row resistance 1 P1

156 inductance, 1 L5

LTS546RF charactron 4 L1 L2 L3 L4

6MHZ crystal oscillator 1 C4

Switch 2 S1 S2

Loudspeaker 1 SPEAKE1

DIP16 socket 1 X16

Being to connect network below, above "---" is the network code name wherein, "-" back be this element number of pins.

+5

C22-1 C28-2 I1-7 I2-11 I3-11

IC13-8 R35-1 X10-4 A2-3 C12-2

C14-1

+15

D5-A D6-K X7-3

-5

C20-2 C26-2 I1-4 I2-7 I3-7

IC13-4 R35-3 R37-2 A1-3 C11-1

C13-2

-15

D7-K D8-A X7-1

A

IC8-2 L1-7 L2-7 L3-7 L4-7

R11-1 X2-5

A0

IC1-10 IC2-10 IC3-2 IC6-21 IC10-25

IC11-9

A1

IC1-9 IC2-9 IC3-5 IC10-24 IC11-8

A2

IC1-8 IC2-8 IC3-6 IC10-23

A3

IC1-7 IC2-7 IC3-9

A4

IC1-6 IC2-6 IC3-12

A5

IC1-5 IC2-5 IC3-15

A6

IC1-4 IC2-4 IC3-16

A7

IC1-3 IC2-3 IC3-19

A8

IC1-25 IC2-25 IC4-21

A9

IC1-24 IC2-24 IC4-22

A10

IC1-21 IC2-21 IC4-23

A11

IC1-23 IC2-23 IC4-24

A12

IC1-2 IC2-2 IC4-25

A13

IC4-26 IC5-5

A14

IC4-27 IC5-6

A15

IC4-28 IC5-7

ALE

IC3-11 IC4-30 IC6-3 IC10-10

B

IC8-4 L1-6 L2-6 L3-6 L4-6

R10-1 X2-6

B0

IC6-31 IC8-1

B1

IC6-30 IC8-3

B2

IC6-29 IC8-5

B3

IC6-28 IC8-9

C

IC8-6 L1-4 L2-4 L3-4 L4-4

R9-1 X2-7

C0

IC6-27 IC8-11

C1

IC6-26 IC8-13

C2

IC6-25 IC9-1

C3

IC6-24 IC9-3

C4.1_IC4.19

C3-2 C4-1 IC4-19

C7.1_R20.1

C7-1 R20-1

C8.1_N1.5

C8-1 N1-5 R21-2

C16.1_A2.1

A2-1 C16-1 D5-K D8-K

C21.2_R27.2

C21-2 I2-10 R27-2 R29-1

C23.1_I3.5

C23-1 I3-5 R30-2 R32-2

C24.1_I3.1

C24-1 I3-1

CS1

IC2-22 IC5-23

CS2

IC1-20 IC5-22

CS3/RD

IC5-18 IC10-9

CS3/WR

IC5-21 IC10-6 IC10-22

CS4

IC5-20 IC6-22

CS5

IC5-19 IC11-6

CS6

IC5-17 S1-3

CS7

IC5-16 X11-1

CS8

IC5-15 IC12-1 IC12-17

D

IC8-8 L1-2 L2-2 L3-2 L4-2

R8-1 X2-8

D0

IC1-11 IC2-11 IC3-3 IC4-39 IC6-12

IC10-17 IC11-34 IC12-7 X11-3

D1

IC1-12 IC2-12 IC3-4 IC4-38 IC6-13

IC10-14 IC11-33 IC12-6 X11-5

D2

IC1-13 IC2-13 IC3-7 IC4-37 IC6-14

IC10-15 IC11-32 IC12-5 X11-7

D3

IC1-15 IC2-15 IC3-8 IC4-36 IC6-15

IC10-8 IC11-31 IC12-4 X11-9

D4

IC1-16 IC2-16 IC3-13 IC4-35 IC6-16

IC10-18 IC11-30 IC12-16 X11-11

D4.A_X6.1

D3-K D4-A X6-1

D4.K_D2.K

C9-1 D2-K D4-K N1-1

D5

IC1-17 IC2-17 IC3-14 IC4-34 IC6-17

IC10-19 IC11-29 IC12-15 X11-13

D6

IC1-18 IC2-18 IC3-17 IC4-33 IC6-18

IC10-20 IC11-28 IC12-14 X11-15

D6.A_D7.A

A1-2 C15-2 D6-A D7-A

D7

IC1-19 IC2-19 IC3-18 IC4-32 IC6-19

IC10-21 IC11-27 IC12-13 X11-17

D9.A_R26.1

D9-A D10-K R26-1 X10-1

D9.K_R25.1

D9-K D10-A R25-1 X10-2

DA

IC12-9 IC13-1 X15-10

DP

IC9-4 L1-5 L2-5 L3-5 L4-5

R4-1 X2-12

E

IC8-10 L1-1 L2-1 L3-1 L4-1

R7-1 X2-9

E1.1_IC15.9

E1-1 IC15-9

E2.2_IC15.6

E2-2 IC15-2 IC15-6 R43-1

F

IC8-12 L1-9 L2-9 L3-9 L4-9

R6-1 X2-10

G

IC9-2 L1-10 L2-10 L3-10 L4-10

R5-1 X2-11

GND

A1-1 A2-2 C2-2 C3-1 C5-2

C6-2 C7-2 C8-2 C9-2 C10-2

C11-2 C12-1 C13-1 C14-2 C15-1

C16-2 C17-2 C20-1 C22-2 C23-2

C26-1 C28-1 C29-2 C30-1 D1-A

D3-A E2-1 IC1-14 IC2-14 IC3-1

IC3-10 IC4-20 IC4-31 IC5-12 IC6-20

IC7-4 IC7-5 IC7-8 IC8-7 IC9-7

IC9-7 IC9-7 IC10-13 IC10-16 IC11-7

IC12-3 IC12-10 IC12-12 IC13-3 IC14-8

IC15-7 N1-4 Q1-2 Q2-1 Q2-3

R1-1 R21-1 R28-1 R32-1 R34-1

S1-1 SPEAKE1-2 V5-A X1-1 X2-1

X2-2 X3-1 X5-1 X5-2 X7-2

X8-1 X9-1 X10-3 X11-2 X11-4

X11-6 X11-8 X11-10 X11-12 X11-14

X11-16 X14-1 X15-1 X16-2 X16-4

X16-6 X16-8 X16-10 X16-12 X16-14

X16-16 Z1-A Z2-A Z3-A Z4-A

Z5-A Z6-A Z7-A

I2.1_C18.1

C18-1 I2-1

I2.2_C19.2

C19-2 I2-2

I2.8_C18.2

C18-2 C19-1 I2-8

I3.2_C25.2

C25-2 I3-2

I3.4_R29.2

C27-1 I3-4 R29-2 R31-1

I3.8_C25.1

C24-2 C25-1 I3-8

IC4.18_C2.1

C2-1 C4-2 IC4-18

IC9.5_IC6.4

IC6-4 IC9-5

IC10.12_R3.2

IC10-12 Q1-1 Q1-3 R3-2

IC13.2_IC12.11

IC12-11 IC13-2

IC14.16_J1.8

IC14-16 J1-8

IC15.8_C30.2

C30-2 IC15-8 IC15-12 R41-1

IN0

IC10-26 X15-3 Z7-K

IN1

IC10-27 X15-4 Z6-K

IN2

IC10-28 X15-5 Z5-K

IN3

IC10-1 X15-6 Z4-K

IN4

IC10-2 X15-7 Z3-K

IN5

IC10-3 X15-8 Z2-K

IN6

IC10-4 X15-9 Z1-K

INT0

IC4-12 IC9-6 R2-1

IO/1

IC11-4 X3-3

IO/2

IC11-3 X3-4

IO/3

IC11-2 X3-5

IO/4

IC11-1 X3-6

IO/5

IC11-40 X3-7

IO/6

IC11-39 X3-8

IO/7

IC11-38 X3-9

IO/8

IC11-37 X3-10

IO/9

IC11-18 X4-1

IO/10

IC11-19 X4-2

IO/11

IC11-20 X4-3

IO/12

IC11-21 X4-4

IO/13

IC11-22 X4-5

IO/14

IC11-23 X4-6

IO/15

IC11-24 X4-7

IO/16

IC11-25 X4-8

IO/17

IC11-14 X4-9

IO/18

IC11-15 X4-10

IO/19

IC11-16 X4-11

IO/20

IC11-17 X4-12

IO/21

IC11-13 X4-13

IO/22

IC11-12 X4-14

IO/23

IC11-11 X4-15

IO/24

IC11-10 X4-16

J1.2_X13.3

J1-2 X13-3

J1.3_X13.2

J1-3 X13-2

J1.4_X13.1

J1-4 X13-1

L0

IC6-38 X12-14

L1

IC6-39 X12-12

L2

IC6-1 X12-2

L3

IC6-2 X12-4

L4

IC6-5 X12-6

L5

IC6-6 X12-8

L6

IC6-7 X12-10

N1.6_C10.1

C10-1 N1-6

N1.7_L5.1

L5-1 N1-7 V5-K

P1.0

R38-1 X14-3

P1.2

R39-1 X14-5

P1.2_X16.1

P1-2 X16-1 X17-1

P1.3

IC15-4 IC15-10 R44-1 X14-6

P1.4

IC14-1 X14-7

P1.5

IC14-2 X14-8

P1.7

IC4-8 X1-10 X11-19

P1.8_X16.13

P1-8 X16-13

P1.9_X16.15

P1-9 X16-15

PSEN

IC4-29 IC5-3

Q2.2_R37.1

IC12-8 Q2-2 R37-1

R4.2_X5.12

R4-2 X5-12

R5.2_X5.11

R5-2 X5-11

R6.2_X5.10

R6-2 X5-10

R7.2_X5.9

R7-2 X5-9

R8.2_X5.8

R8-2 X5-8

R9.2_X5.7

R9-2 X5-7

R10.2_X5.6

R10-2 X5-6

R11.2_X5.5

R11-2 X5-5

R20.2_N1.3

N1-3 R20-2

R22.1_N1.2

N1-2 R22-1

R23.1_I1.3

I1-3 R23-1

R24.1_I1.2

I1-2 R24-1

R24.2_X8.2

I1-6 R24-2 X8-2

R27.1_I2.4

C21-1 I2-4 R25-2 R27-1

R28.2_C17.1

C17-1 I2-5 R26-2 R28-2

R30.1_R35.2

R30-1 R35-2

R31.2_R34.3

C27-2 R31-2 R33-1 R34-2 R34-3

R33.2_R36.1

I3-10 R33-2 R36-1

R40.1_R41.2

IC15-13 R40-1 R41-2

R42.1_R42.2

IC15-5 R42-1 R42-2

R42.3_IC15.11

IC15-11 R42-3

R44.2_IC15.1

IC15-1 R43-2 R44-2

RD

IC1-22 IC4-17 IC5-8 IC6-10 IC11-5

RES

C1-2 IC4-9 IC6-9 IC11-35 R1-2

X12-15

S1.2_IC2.20

IC2-20 S1-2

S2.2_IC2.27

IC2-27 S2-2

S3.2_R39.2

R39-2 S3-2

S4.1_R38.2

R38-2 S4-1

SL0

IC6-32 IC7-1

SL1

IC6-33 IC7-2

SL2

IC6-34 IC7-3

SPEA.1_E1.2

E1-2 SPEAKE1-1

V1.B_R13.2

R12-1 R13-2 V1-B

V1.C_L1.8

L1-3 L1-8 V1-C

V2.B_R15.2

R14-1 R15-2 V2-B

V2.C_L2.8

L2-3 L2-8 V2-C

V3.B_R17.2

R16-1 R17-2 V3-B

V3.C_L3.8

L3-3 L3-8 V3-C

V4.B_R18.2

R18-2 R19-1 V4-B

V4.C_L4.8

L4-3 L4-8 V4-C

VCC

C1-1 C5-1 C6-1 D11-K IC1-26

IC1-28 IC2-1 IC2-28 IC3-20 IC4-40

IC5-24 IC6-40 IC7-6 IC7-16 IC8-14

IC9-14 IC9-14 IC9-14 IC10-11 IC11-26

IC12-19 IC12-20 IC14-9 IC15-14 J1-1

L5-2 P1-1 R2-2 R3-1 R12-2

R14-2 R16-2 R19-2 R22-2 R40-2

S2-3 S3-1 S4-2 V1-E V2-E

V3-E V4-E X2-3 X2-4 X3-2

X5-3 X5-4 X12-16 X14-2 X15-2

WR

IC1-27 IC4-16 IC5-4 IC6-11 IC11-36

IC12-2 IC12-18 S2-1

X1.3_IC4.1

IC4-1 X1-3

X1.4_IC4.2

IC4-2 X1-4

X1.5_IC4.3

IC4-3 X1-5

X1.6_IC4.4

IC4-4 X1-6

X1.7_IC4.5

IC4-5 X1-7

X1.8_IC4.6

IC4-6 X1-8

X1.9_IC4.7

IC4-7 X1-9

X6.2_D2.A

D1-K D2-A X6-2

X9.3_R23.2

C29-1 R23-2 R36-2 X9-3

X16.3_P1.3

P1-3 X16-3 X17-2

X16.5_P1.4

P1-4 X16-5 X17-3

X16.7_P1.5

P1-5 X16-7 X17-4

X16.9_P1.6

P1-6 X16-9 X17-5

X16.11_P1.7

P1-7 X16-11 X17-6

Y0

IC7-15 R17-1 X2-13 X5-13 X12-1

Y1

IC7-14 R18-1 X2-14 X5-14 X12-3

Y2

IC7-13 R15-1 X2-15 X5-15 X12-5

Y3

IC7-12 R13-1 X2-16 X5-16 X12-7

Y4

IC7-11 X2-17 X12-9

Y5

IC7-10 X2-18 X12-11

Y6

IC7-9 X2-19 X12-13

Y7

IC7-7 X2-20

S3, S4 shown in the accompanying drawing 15 are two light emitting diodes, they are installed on the watch-dog mainframe box front panel, S3 is that green LED is represented normal operating conditions, its negative pole is connected on the single-chip microcomputer P1.0 mouth by current-limiting resistance, S4 is that red light emitting diodes is represented alarm condition, and its negative pole is connected on the single-chip microcomputer P1.2 mouth by current-limiting resistance.When lathe is in normal operating conditions, P1.0 mouth output low level, P1.2 mouth output high level, green light is bright, and red light goes out; When lathe is in overload, P1.0 mouth output high level, P1.2 mouth output low level, green light goes out, and red light is bright.J1 in the accompanying drawing 13 is a relay; its 1,2,3 pin are connected on the socket X13; be connected on successively then on the rear board binding post 1,2,3; when lathe is in alarm condition; originally being in 2,3 closed pin disconnects; and the closed conducting of 1,3 pin that were in disconnection originally, thereby can realize the overload autostop of lathe.Accompanying drawing 18 is loudspeaker alarm control circuit figure, and when the lathe overload-alarm, single-chip microcomputer makes warning circuit work by P1.3 mouth output high level, carries out the sound overload-alarm.A SR is arranged on the watch-dog mainframe box rear board, two toggle switch, they link to each other with 18,19,20 pin of parallel I/O mouth chip 8255 in the single-chip computer control system by pull-up resistor.

What X3 connect in the accompanying drawing 4 is panel warning tonnage input switch, and it links to each other with parallel I/O mouth chip 8255 pins 4,3,2,1,40,39,38,37 in the control system.When connecting the watch-dog power supply, when press machine tool was worked, what show on the panel was load pressure tonnage value maximum in the current period.By setting the numerical value of warning tonnage input switch on the panel, die wear control tonnage can be set, die location moves control tonnage, machine safety working limit tonnage and lathe abnormality control tonnage.Specific as follows:

1, the press machine tool tonnage monitors: in each punching course, the show value on the monitor is exactly the maximum of current impulsive force.

2, the machine tool mould adjustment monitors: adjust mould and also try punching press, the impulsive force numerical value that makes demonstration hour is the optimum Working of mould.

3, the state of wear of mould monitors: the impulsive force according to the mould normal operating conditions shows number, utilize warning tonnage input switch that one control limit suitably is set, impulsive force increases above control limit when die wear is arrived to a certain degree, thereby carry out sound, light warning and output control signal, reach the purpose that guarantees product quality.

4, utilize connector lug on the rear board (2,3) normally-closed contact (disconnecting during warning) and (1,3) normally opened contact (closure during warning) can realize control functions such as warning autostop to lathe.

5, the binding post on the rear board 5,6 can connect oscillograph or other register instrument, and it can export the stamping press numerical value of overall process, can observe the impulsive force waveform after connecting oscillograph, wherein, 6 pin ground connection, 5 pin are positive output.

Above embodiment successfully develops, and it is simple in structure, cost is low, and gross investment is only about 2000 yuan; In several ten thousand experiments that carry out at the factory scene, the utility model working stability, reliable will drop in soon and produce in batches.

Claims (5)

1, a kind of press machine tool punching press status monitor, comprise the pressure sensor and the watch-dog main frame that connect by cable, the watch-dog main frame comprises the digital to analog converter that is contained in the mainframe box, panel status indicator lamp and controlling alarm, program storage, data storage, numeral parallel I/O module, keyboard and demonstration control, numeral parallel I/O module and digital switch quantity output, the input of panel control data connects, keyboard and demonstration control and display board, input keyboard connects, software solidification is in program storage, and the impulsive force scope is connected with two binding posts of watch-dog mainframe box rear board; It is characterized in that digital to analog converter, analog-digital converter, panel status indicator lamp and controlling alarm, program storage, data storage, digital parallel I/O module, keyboard and show that control all directly is connected with the control centre single-chip microcomputer; Analog-digital converter is connected with amplification module, amplification module is connected with pressure sensor; Operate as normal indicator lamp on this mainframe box front panel and overload light are connected on mouthfuls of two pins of single-chip microcomputer P1 control by connecting line respectively, and the acoustic alarm loudspeaker that is positioned at this mainframe box is connected on the dual time base oscillator delivery outlet that another pin of single-chip microcomputer P1 control mouthful controls; Warning tonnage input switch is housed on watch-dog mainframe box front panel, and this switch is made up of one to three BCD toggle switch, and is connected with parallel I/O mouth chip in the single-chip computer control system; A SR is housed on watch-dog mainframe box rear board, two toggle switch, they are connected with parallel I/O mouth chip in the single-chip computer control system by pull-up resistor; At the signal output part of this a mainframe box internal signal amplification module voltage follower in parallel, the voltage follower output signal is connected on respectively on two binding posts that are positioned on the watch-dog mainframe box rear board by anodal and ground.

2, press machine tool punching press status monitor according to claim 1 is characterized in that the inboard point that pressure sensor is installed in platen and lathe side cross spider is the center of circle, and radius is 300 millimeters the interior lathe sidewall areas of semicircle scope.

3, press machine tool punching press status monitor according to claim 1 is characterized in that the operate as normal indicator lamp of watch-dog mainframe box front panel and overload light are connected on respectively on single-chip microcomputer P1.0 and the P1.2 mouth.

4, press machine tool punching press status monitor according to claim 1 is characterized in that panel warning tonnage input switch links to each other with the 4th, 3,2,1,40,39,38,37 pins of parallel I/O mouth chip 8255 in the single-chip computer control system.

5, press machine tool punching press status monitor according to claim 1 is characterized in that the SR on the watch-dog mainframe box rear board, two toggle switch are connected with the 18th, 19,20 pin of parallel I/O mouth chip 8255 in the single-chip computer control system by pull-up resistor.

Images