CN209070115U - High-frequency induction formula safety detection device and stamping equipment - Google Patents
High-frequency induction formula safety detection device and stamping equipment Download PDFInfo
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- CN209070115U CN209070115U CN201821768277.9U CN201821768277U CN209070115U CN 209070115 U CN209070115 U CN 209070115U CN 201821768277 U CN201821768277 U CN 201821768277U CN 209070115 U CN209070115 U CN 209070115U
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Abstract
The utility model relates to a kind of high-frequency induction formula safety detection device and stamping equipments, for stamping equipment, stamping equipment includes pedestal and the work piece platform being set on the base, and high-frequency induction formula safety detection device includes: for generating high-frequency signal and controlling the control circuit of signal；It connects to the control circuit, emit high-frequency signal to high-frequency signal emission layer work piece platform periphery and be forwarded the inductive signal that work piece platform generates；It connect with high-frequency signal emission layer, receive inductive signal and detection signal is generated according to inductive signal and will test the detection signal output apparatus that signal is sent to control circuit；Control circuit is also according to detection signal output control signal.Implementing this programme can effectively detect whether human body contacts or close to work piece platform, avoid stamping press injury to personnel, improve safety coefficient, reach real safeguard protection purpose.
Description
Technical field
The utility model relates to the technical fields of punching press mounting device, pacify more specifically to a kind of high-frequency induction formula
Full detection device and stamping equipment.
Background technique
Stamping equipment is the critically important process equipment of metal product processing.Substantial amounts in the market, many stamping equipments
Operation need it is artificial participate in, therefore, there is a large amount of workers injury when operate stamping equipment every year.Punching press on the market is set at present
It is standby few for the device of finger detection.Large-scale stamping equipment, which generallys use the control of general safety door, (must shut off working region
Door, just machine is allowed to act) or light curtain protect (by it is many shine and receive form one annular light curtain, when finger passes through
When light curtain, the case where producing shading, to cause protection).Under this mechanism, safeguard measure is relatively complete.But
Small device field is then faced with acid test, because the operating shape that small device is usually processed is greatly, and passes through
It often needs to be assisted rotating in one's hands or be corrected.Therefore, very difficult design is arranged in the safeguard protection of this kind of equipment.
For small device, some uses infrared emission on the market, for this mode: entering certain area when hand-held
It is interior, shading situation is produced, to cause protection.This protection there are certain requirements the use angle of operation element.And it touches
When bigger to workpiece configurations, workpiece itself can cover infrared light and can not operate at all so as to cause machine.Alternatively, also having
Using safety collar mode, i.e., an annulus is mounted on ram axle.Before starting, first safety collar is allowed to move to the location of workpiece, if
There is no finger to enter stamped area, then safety collar can be close to work.If encountering finger, operating position can not be moved to, from
And cause the protection of system.But in actual mechanical process, this kind of protection needs adjust the big of safety collar according to different workpiece
Small and shape causes different workpiece to need different safety collars.It, must debugging machine after replacement.Increase skilled worker's
Time, and after safety collar type is more, storage management is also fairly cumbersome, and in practical application, many workers are this safety
Ring folding uses after falling, to lose its Protection significance.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of high frequency sense
Answer formula safety detection device and stamping equipment.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of high-frequency induction formula safety detection
Device, is used for stamping equipment, and the stamping equipment includes the work piece platform of pedestal and setting on the base, the high frequency
Induction type safety detection device includes:
For generating high-frequency signal and controlling the control circuit of signal；
It is connect with the control circuit, the high-frequency signal is emitted to the work piece platform periphery and puts down the workpiece
The high-frequency signal emission layer that the inductive signal that platform generates is forwarded；
It connect with the high-frequency signal emission layer, receive the inductive signal and detection letter is generated according to the inductive signal
Number and the detection signal is sent to the detection signal output apparatus of the control circuit；
The control circuit exports control signal also according to the detection signal.
In the utility model embodiment, optionally, the control circuit includes:
For generating the control chip of square-wave signal and the variation output control signal according to the detection signal；
It is connect with the control chip, for receiving the square-wave signal and the square-wave signal being converted to the high frequency
The voltage conversion circuit of signal.
In the utility model embodiment, optionally, the voltage conversion circuit include: input circuit, high frequency transformer and
Capacitor；
The input terminal of the input circuit connect it is described control chip square-wave signal output end, the input circuit it is defeated
Outlet connects the armature winding of the high frequency transformer, described in the first output end connection of the secondary windings of the high frequency transformer
The second output terminal of the input terminal of high-frequency signal emission layer, the secondary windings of the high frequency transformer passes through the capacitance connection institute
State pedestal.
In the utility model embodiment, optionally, the input circuit includes: resistance R2, resistance R3 and triode Q1；
Input of the connecting pin of the first end of the resistance R2 and the first end of the resistance R3 as the input circuit
The square-wave signal output end of the end connection control chip, the second end of the resistance R2 connect the base stage of the triode Q1,
The emitter of the second end of the resistance R3 and the triode Q1 are grounded together, described in the collector conduct of the triode Q1
The output end of input circuit connects the armature winding of the high frequency transformer.
In the utility model embodiment, optionally, the high-frequency induction formula safety detection device further includes insulating protective layer,
The periphery of the work piece platform is arranged in the insulating protective layer, and between the work piece platform and the pedestal；
The high-frequency signal emission layer is built in the insulating protective layer.
In the utility model embodiment, optionally, the detection signal output apparatus includes:
It is connect with the output end of the high-frequency signal emission layer, the inductive signal is divided and export voltage division signal
Bleeder circuit；
The processing electricity of the detection signal is connect, handled the voltage division signal and exported with the bleeder circuit
Road.
In the utility model embodiment, optionally, the bleeder circuit include: resistance R11, resistance R13, resistance R14 and
Resistance R16；
The first end of the resistance R11 connects the output end of the high-frequency signal emission layer, the second end of the resistance R11
Pass sequentially through the resistance R13, the resistance R14 and resistance R16 ground connection；The company of the resistance R14 and the resistance R16
It connects end and the processing circuit is coupled to by coupled capacitor C6.
In the utility model embodiment, optionally, the processing circuit includes: operational amplifier U2A, resistance R12, resistance
R17, resistance R18, resistance R15, resistance R19, capacitor C11, diode D3 and capacitor C10；
The non-inverting input terminal of the operational amplifier U2A passes through coupled capacitor C6 coupling as the input terminal of the processing circuit
Close the bleeder circuit, the non-inverting input terminal of the operational amplifier U2A also respectively by the resistance R12 connect high level,
It is grounded by the resistance R17；The inverting input terminal of the operational amplifier U2A is grounded by the resistance R19, the operation
The output end of amplifier U2A connects its inverting input terminal by the resistance R18, the output end of the operational amplifier U2A also according to
It is secondary to be grounded by the resistance R15 and capacitor C10；The cathode of the diode D3 meets supply voltage, the diode D3
Anode connect the connecting pin of the resistance R15 and the capacitor C10；The power supply of the operational amplifier U2A terminates high level,
The feeder ear of the operational amplifier U2A also passes through the capacitor C11 ground connection.
In the utility model embodiment, optionally, the high-frequency induction formula safety detection device further include:
It is connect with the control chip, the indicating circuit for generating indication signal.
The utility model also provides a kind of stamping equipment, including pedestal, setting work piece platform on the base and
Punching press control system；It further include above-described high-frequency induction formula safety detection device, the high-frequency induction formula safety detection dress
It sets and is connect with the punching press control system, for sending control signal to the punching press control system.
Implement the utility model, has the advantages that the high-frequency induction formula safety detection device packet of the utility model
It includes: for generating high-frequency signal and controlling the control circuit of signal；It connects to the control circuit, high-frequency signal is emitted to workpiece and is put down
High-frequency signal emission layer platform periphery and be forwarded the inductive signal that work piece platform generates；Connect with high-frequency signal emission layer
It connects, receive inductive signal and detection signal is generated according to inductive signal and will test signal and occur to the detection of control circuit
Signal output apparatus；Control circuit is also according to detection signal output control signal.People can effectively be detected by implementing the utility model
Whether body contacts or close to work piece platform, avoids stamping press injury to personnel, improves safety coefficient, reaches really safety and protects
Eye protection.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the functional block diagram for the high-frequency induction formula safety detection device that an embodiment of the present invention provides；
Fig. 2 is the functional block diagram for the high-frequency induction formula safety detection device that another embodiment of the utility model provides；
Fig. 3 and Fig. 4 is the electricity of control circuit in high-frequency induction formula safety detection device provided by the embodiment of the utility model
Road schematic diagram；
Fig. 5 is detection signal output apparatus in high-frequency induction formula safety detection device provided by the embodiment of the utility model
Circuit diagram；
Fig. 6 is cutting for the assembling of high-frequency induction formula safety detection device and stamping equipment provided by the embodiment of the utility model
Face schematic diagram；
Fig. 7 is bowing for the assembling of high-frequency induction formula safety detection device and stamping equipment provided by the embodiment of the utility model
View；
Fig. 8 is the comparison diagram of the detection signal of high-frequency induction formula safety detection device provided by the embodiment of the utility model；
Fig. 9 is the flow diagram of high-frequency induction formula safety detection method provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It should for the functional block diagram for the high-frequency induction formula safety detection device that an embodiment of the present invention provides with reference to Fig. 1
High-frequency induction formula safety detection device can be applied to stamping equipment, detect human body by the high-frequency induction formula safety detection device
Whether touch or close to stamping equipment work piece platform, and then export corresponding control signal according to testing result, and should
Control signal is transferred to the punching press control system of stamping equipment, executes corresponding operation to control stamping equipment, avoids operation people
Member is injured, improves operation safety coefficient, realizes the safeguard protection to operating personnel.
Specifically, as shown in Figure 6 and Figure 7, stamping equipment includes pedestal 20 and the work piece platform that is arranged on pedestal 20
30。
As shown in Figure 1, the high-frequency induction formula safety detection device includes: for generating high-frequency signal and controlling the control of signal
Circuit 11 processed；It is connect with control circuit 11, high-frequency signal is emitted to 30 periphery of work piece platform and generate work piece platform 30
The high-frequency signal emission layer 12 that inductive signal is forwarded；It connect with high-frequency signal emission layer 12, receive inductive signal and basis
Inductive signal generates detection signal and will test the detection signal output apparatus 13 that signal is sent to control circuit 11；Control
Circuit 11 is also according to detection signal output control signal.Wherein, as shown in Figure 6 and Figure 7, high-frequency signal emission layer 12 is arranged in work
The periphery of part platform 30.Optionally, the control signal that control circuit 11 exports includes first control signal and/or the second control letter
Number, wherein when the control signal that control circuit 11 exports is first control signal, the punching press control system of stamping equipment can be with
Stamping equipment is controlled according to the first control signal not work；When the control signal that control circuit 11 exports is second control signal
When, the punching press control system of stamping equipment can control stamping equipment work according to the second control signal.
Further, as shown in Figure 6 and Figure 7, the high-frequency induction formula safety detection device of the utility model embodiment also wraps
Include: insulating protective layer 14, which is arranged in the periphery of work piece platform 30, and is located at work piece platform 30 and pedestal 20
Between；Wherein, high-frequency signal emission layer 12 is built in insulating protective layer 14.By the way that high-frequency signal emission layer 12 is built in absolutely
In edge protective layer 14, it both can achieve the space radiation effects using high-frequency signal emission layer 12, and also can use high-frequency signal
Emission layer 12, which encloses work piece platform 30, to be located therein and realizes mutual inductance, using mutual inductance principle, senses what work piece platform 30 generated
Inductive signal.
After the high-frequency signal that control circuit 11 exports is sent to high-frequency signal emission layer 12, sent out by high-frequency signal emission layer 12
It is incident upon the periphery of work piece platform 30, and the effect radiated by space, forms the inductive signal of high frequency in work piece platform 30, it should
The inductive signal of high frequency is sent to detection signal output apparatus 13 by high-frequency signal emission layer 12, by detection signal output apparatus
13 pairs of inductive signals detect, and export corresponding detection signal.Optionally, the inductive signal of the high frequency is the sense of high frequency
Answer voltage.
In the utility model embodiment, high-frequency signal emission layer 12 can be realized by conducting wire with control circuit 11 and is electrically connected
It connects, is electrically connected likewise, the high-frequency signal emission layer 12 can also be realized with detection signal output apparatus 13 by conducting wire.
Further, the high-frequency induction formula safety detection device of the utility model embodiment generates height by control circuit 11
Frequency signal is wired to high-frequency signal emission layer 12, and by space radiation effects, forms in work piece platform 30
The induced voltage of high frequency, when human body (the finger physical feeling of such as operating personnel) touches or Close approach work piece platform
When 30, the induced voltage of high frequency is that conductive carrier carries out energy radiation to space by the absorption of human body and with human body.By
It is very small in the electric current of the induced voltage of the high frequency, so, after human body intervention, the induced electricity that is accumulated in work piece platform 30
Pressure is anxious to gather decline, so that causing the detection signal that detection signal output apparatus 13 detects significant diminution variation occurs, and is somebody's turn to do
Detection signal is finally fed back to control circuit 11, detects the detection signal that signal output apparatus 13 detects by 11 pairs of control circuit
It is monitored, therefore, the safety detection to human body can be realized by the variation that control circuit 11 monitors detection signal.
Further, as shown in figure 8, being the inspection of high-frequency induction formula safety detection device provided by the embodiment of the utility model
Survey the comparison diagram of signal.It with reference to Fig. 8, can see according to signal contrast figure, (no finger Close approach when no finger signal
Or contact workpiece platform 30), the peak-to-peak value of detection signal waveform is more much higher than there is peak-to-peak value when finger signal, therefore, right
The maximum value or peak-to-peak value for detecting signal are detected, then carry out date comprision, can judge whether there is finger Jie
Enter, and then corresponding control signal is exported according to judging result.When it is implemented, exported due to the frequency and timer of waveform
PWM frequency is consistent, thus control circuit 11 can by the spilling of timer interrupt to detection signal carry out high voltage and
Low-voltage samples (peak-to-peak value detection method) respectively, or only samples high-voltage value (peak detection), the height electricity that sampling is obtained
The value of pressure subtracts the value of low-voltage, obtains signal difference, judges whether there is finger intervention further according to the size of signal difference.
With reference to Fig. 2, in a preferred embodiment, as shown in Fig. 2, control circuit 11 include: for generate square-wave signal,
And chip 101 is controlled according to the variation output control signal of detection signal；It is connect with control chip 101, for receiving square wave letter
Number and square-wave signal is converted to the voltage conversion circuit 102 of high-frequency signal.
In the embodiment, the square-wave signal that control chip 101 generates is the pwm signal of high frequency.101 pairs of control chip inspections
The sampling for surveying the detection signal that signal output apparatus 13 exports can sample for ADC.
Optionally, which can be single-chip microcontroller.Further, the utility model embodiment can use list
Interruption is interrupted or compared to the spilling of the timer of first piece or ADC sampling completes interruption to realize the peak of synchronous sampling signal
Value or peak-to-peak value.
As shown in figure 3, the energization pins of the control chip 101 meet supply voltage (3.3V) by resistance R8, further,
The energization pins of the control chip 101 also pass through capacitor C5 and are grounded.By utilizing one on the cathode that control chip 101 is powered
A capacitor is connect with stamping equipment bottom, and electricity occurs for the induction for realizing stamping equipment bottom and fuselage and the generation of work piece platform 30
The effect of road idiostatic solves the problems, such as that touching magnetic stamping equipment bottom and fuselage bring malfunction.
In the embodiment, voltage conversion circuit 102 includes: input circuit 1021, high frequency transformer 1022 and capacitor.
Input circuit 1021 input terminal connection control chip 101 square-wave signal output end, input circuit 1021 it is defeated
Outlet connects the armature winding of high frequency transformer 1022, and the first output end of the secondary windings of high frequency transformer 1022 connects high frequency
The second output terminal of the input terminal of signal emission layer 12, the secondary windings of high frequency transformer 1022 passes through capacitance connection pedestal 20.
In the embodiment, the pwm signal for controlling the high frequency that chip 101 generates by using 1022 pairs of high frequency transformer upgrades, and turns
It is changed to high-frequency and high-voltage (high-frequency signal i.e. above-mentioned), and the high-frequency and high-voltage is sent to by high-frequency signal emission layer 12 by conducting wire,
The high-frequency and high-voltage is sent in space locating for work piece platform 30 by high-frequency signal emission layer 12.
Further, voltage conversion circuit 102 further include: absorbing circuit 1023, wherein the confession of the absorbing circuit 1023
Electricity termination high level, the first end of the armature winding of the output end connection high frequency transformer 1022 of the absorbing circuit 1023, the suction
Receive the output end of the other end connection input circuit 1021 of circuit 1023.
As shown in figure 4, input circuit 1021 includes resistance R2, resistance R3 and triode Q1.The first end and electricity of resistance R2
The connecting pin for hindering the first end of R3 controls the square-wave signal output end of chip 101 as the input terminal connection of input circuit 1021
(17 feet of U1 in such as Fig. 4), the base stage of the second end connecting triode Q1 of resistance R2, the second end of resistance R3 and triode Q1's
Emitter is grounded together, and the collector of triode Q1 connects the first of high frequency transformer 1022 as the output end of input circuit 1021
Grade winding (3 feet of T1 in such as Fig. 4).
Absorbing circuit 1023 includes capacitor C1, resistance R1 and diode D1.The first of the first end of capacitor C1 and resistance R1
End connects high level (5V) together, and the second end of resistance C1 and the second end of resistance R1 connect the cathode of diode D1 together, and two
The collector of the anode connecting triode Q1 of pole pipe D1 and connect high frequency transformer 1022 armature winding third end (in Fig. 4
3 feet), the first end (1 foot in Fig. 4) of the armature winding of high frequency transformer 1022 is also connected with high level (5V).
The first output end (9 feet " H_OUT " in Fig. 4) of the secondary windings of high frequency transformer 1022 is wired to
The second output terminal (7 feet " H_GND " in Fig. 4) of high-frequency signal emission layer 12, the secondary windings of high frequency transformer 1022 passes through
The pedestal 20 of capacitor C3 connection stamping equipment.
As shown in figure 4, the reverse spike voltage of high frequency transformer 1022 can be absorbed by the absorbing circuit 1023, prevent
Triode Q1 is reversed high-voltage breakdown.Resistance R3 can be played when powering on, in the feelings that control chip 101 does not reset well completely
Condition similarly hereinafter, the effect for preventing triode Q1 from misleading.
Further, as shown in figure 5, the detection signal output apparatus 13 includes: the output with high-frequency signal emission layer 12
End connection carries out voltage division processing to inductive signal and exports the bleeder circuit 1301 of voltage division signal；Connect with bleeder circuit 1301,
Handled voltage division signal and exported the processing circuit 1302 of detection signal.
Wherein, bleeder circuit 1301 includes: resistance R11, resistance R13, resistance R14 and resistance R16.
Processing circuit 1302 includes operational amplifier U2A, resistance R12, resistance R17, resistance R18, resistance R15, resistance
R19, capacitor C11, diode D3 and capacitor C10.
The output end of first end (H_IN in Fig. 5) the connection high-frequency signal emission layer 12 of resistance R11, the of resistance R11
Two ends pass sequentially through resistance R13, resistance R14 and resistance R16 is grounded, and the connecting pin of resistance R14 and resistance R16 pass through coupling electricity
Hold the input terminal (non-inverting input terminal of operational amplifier U2A, i.e. 3 feet of U2A in such as Fig. 5) that C6 is coupled to processing circuit 1302,
The first termination high level (5V) of resistance R12, the second end of resistance R12 is grounded by resistance R17, resistance R12 and resistance R17's
Connecting pin is additionally coupled to the non-inverting input terminal (3 foot) of operational amplifier U2A, and the inverting input terminal (2 foot) of operational amplifier U2A is logical
Resistance R19 ground connection is crossed, the output end of operational amplifier U2A passes sequentially through resistance R15, capacitor C10 ground connection, the cathode of diode D3
It connects supply voltage (3.3V), the connecting pin of anode connection the resistance R15 and capacitor C10 of diode D3；The confession of operational amplifier U2A
Electricity termination high level (5V), and be also grounded by capacitor C11；The ground terminal of operational amplifier U2A is grounded.As shown in figure 5, passing through
The effect of resistance R12 and resistance R17 constitute voltage bias, realize the conversion of AC-to DC.Meanwhile utilizing operation amplifier
The characteristic of high resistant input, the low-resistance output of device U2A, realizes impedance matching.
Further, as shown in figure 3, the high-frequency induction formula safety detection device high-frequency induction formula safety detection device also wraps
It includes: being connect with control chip 101, the indicating circuit 15 for generating indication signal.As shown in figure 3, the indicating circuit 15 includes
The first end of resistance R6 and LED light D2, resistance R6 connect high level (5V), the anode of the second end connection D2 of resistance R6,
18 feet of the cathode connection control chip 101 of D2.By the way that LED light is arranged, eye recognition can be carried out for operating personnel, into
And achieve the purpose that effective, significant prompting operating personnel.
With reference to Fig. 3 to Fig. 5, the concrete operating principle of the high-frequency induction formula safety detection device of the utility model embodiment
Are as follows:
The PWM wave that chip 101 generates a high frequency is controlled, is exported by its 17 foot, resistance R2 and triode are then passed through
Q1 drives high frequency transformer 1022 to produce one by 9 feet of high frequency transformer 1022 by the mutual inductance of high frequency transformer 1022
High-frequency high-voltage signal (high-frequency signal above-mentioned), is wired to high-frequency signal emission layer 12, is radiated by space, by work
Part platform 30 incudes the high-frequency high-voltage signal emitted from high-frequency signal emission layer 12, then is wired to circuit
The position H_IN (first end of resistance R11), after being divided by resistance R11, resistance R13, resistance R14 and resistance R16, by coupling electricity
Hold 3 feet that C6 is coupled to operational amplifier U2A, after the amplification of operational amplifier U2A, obtains detection signal, the detection
Signal is exported from 1 foot of operational amplifier U2A, after the overvoltage protection of the current limliting of R15 and diode D3, back to control
7 feet of chip 101 after carrying out ADC acquisition, analysis by 101 pairs of detection signals of control chip, generate corresponding control signal from 8
Foot is exported to the punching press control system of stamping equipment, meanwhile, control chip 101 also outputs signal to D2 by 18 feet, drives D2
It shines and reminds operating personnel.
In a specific embodiment, by taking peak-to-peak value detection method as an example.By controlling 7 feet of chip 101 to operation amplifier
The detection signal of device U2A1 foot output carries out high voltage and low-voltage samples respectively, and the value of the high voltage sampled is subtracted
The value of low-voltage, obtains signal difference, the size of the signal difference is compared judgement with preset difference value, when the signal difference
Greater than preset difference value, then explanation has finger Close approach or contact workpiece platform 30, at this point, control chip 101 passes through 8 feet
The punching press control system of first control signal to stamping equipment is exported, punching press control system controls punching press according to first control signal
Equipment stops working, while controlling chip 101 and also outputing signal to D2 by 18 feet, and driving D2 shines to provide operating personnel；
When the signal difference is less than preset difference value, illustrate no finger Close approach or contact workpiece platform 30, at this point, control core
Piece 101 exports the punching press control system of second control signal to stamping equipment by 8 feet, and punching press control system is according to the second control
Signal controls stamping equipment work.
High-frequency induction formula safety detection device provided by the embodiment of the utility model both can effectively solve traditional scheme institute
There are the problem of, and effective detection to equipment can be realized in a manner of low cost, while the high-frequency induction of the utility model
Formula safety detection device is fixed on stamping equipment, can avoid security risk caused by the random dismounting of operating personnel, effectively
Avoid stamping press injury to personnel, protect the safety of stamping press personnel, improve the safety coefficient of operation, reached real
Safeguard protection purpose.
The utility model embodiment additionally provides a kind of stamping equipment, which includes pedestal 20, is arranged in pedestal
Work piece platform 30 and punching press control system on 20；It further include the dress of high-frequency induction formula safety detection provided by previous embodiment
It sets, high-frequency induction formula safety detection device is connect with punching press control system, for sending control signal to punching press control system.This
The high-frequency induction formula safety detection device that the stamping equipment of utility model is provided by setting previous embodiment, can achieve effectively
Whether detection human body contacts or close to work piece platform 30, avoids stamping press injury to personnel, improves safety coefficient, realizes real
Safeguard protection.
With reference to Fig. 9, the utility model embodiment additionally provides a kind of high-frequency induction formula safety detection method, for realizing preceding
The safety detection for the stamping equipment stated operates.
As shown in figure 9, the high-frequency induction formula safety detection method the following steps are included:
S1, control circuit 11 export high-frequency signal, and high-frequency signal are sent to high-frequency signal emission layer 12.
S2, high-frequency signal emission layer 12 emit high-frequency signal to 30 periphery of work piece platform, incude height by work piece platform 30
Frequency signal, and the inductive signal that work piece platform 30 generates is sent to by detection signal output apparatus by high-frequency signal emission layer 12
13。
S3, detection signal output apparatus 13 carry out detection processing to inductive signal and export detection signal to control circuit
11。
S4, control circuit 11 output control signals to punching press control system according to detection signal, are held with controlling stamping equipment
Row safety operation.
Optionally, in the utility model embodiment, control signal includes first control signal and/or second control signal.
Wherein, step S4 includes:
S41, control circuit 11 judge whether there is human contact or close work piece platform 30 according to detection signal.
If S42, having detected human contact or close to work piece platform 30, the generation first control signal of control circuit 11.
It is to be appreciated that when control circuit 11 export be first control signal when, punching press control system according to this first
Control signal control stamping equipment stops working.
If S43, detecting no human contact or close to work piece platform 30, the generation second control signal of control circuit 11.
It is to be appreciated that when control circuit 11 export be second control signal when, punching press control system according to this second
Control signal control stamping equipment work.
Further, the high-frequency induction formula safety detection method is further comprising the steps of:
Control circuit 11 sends control signals to indicating circuit 15；Indicating circuit 15 executes instruction dynamic according to control signal
Make.Optionally, control signal here can be driving signal.Specifically, when control circuit 11 generates first control signal,
Output drive signal drives indicating circuit 15 to work, to mention to control circuit 11 to indicating circuit 15 by the driving signal simultaneously
Wake up operating personnel.Further, which may include LED light.
Above embodiments are only to illustrate the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, the protection scope of the utility model can not be limited.It is all with
The equivalent changes and modifications that the utility model claims range is done, should belong to the utility model claims covers model
It encloses.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (10)
1. a kind of high-frequency induction formula safety detection device, is used for stamping equipment, the stamping equipment includes that pedestal and setting exist
Work piece platform on the pedestal, which is characterized in that the high-frequency induction formula safety detection device includes:
For generating high-frequency signal and controlling the control circuit of signal；
It is connect with the control circuit, the high-frequency signal is emitted to the work piece platform periphery and produces the work piece platform
The high-frequency signal emission layer that raw inductive signal is forwarded；
Connect with the high-frequency signal emission layer, receive the inductive signal and according to the inductive signal generate detection signal,
And the detection signal is sent to the detection signal output apparatus of the control circuit；
The control circuit exports control signal also according to the detection signal.
2. high-frequency induction formula safety detection device according to claim 1, which is characterized in that the control circuit includes:
For generating the control chip of square-wave signal and the variation output control signal according to the detection signal；
It is connect with the control chip, for receiving the square-wave signal and the square-wave signal being converted to the high-frequency signal
Voltage conversion circuit.
3. high-frequency induction formula safety detection device according to claim 2, which is characterized in that the voltage conversion circuit packet
It includes: input circuit, high frequency transformer and capacitor；
The input terminal of the input circuit connects the square-wave signal output end of the control chip, the output end of the input circuit
The armature winding of the high frequency transformer is connected, the first output end of the secondary windings of the high frequency transformer connects the high frequency
The second output terminal of the input terminal of signal emission layer, the secondary windings of the high frequency transformer passes through bottom described in the capacitance connection
Seat.
4. high-frequency induction formula safety detection device according to claim 3, which is characterized in that the input circuit includes:
Resistance R2, resistance R3 and triode Q1；
The connecting pin of the first end of the resistance R2 and the first end of the resistance R3 connects as the input terminal of the input circuit
The square-wave signal output end of the control chip is connect, the second end of the resistance R2 connects the base stage of the triode Q1, described
The emitter of the second end of resistance R3 and the triode Q1 are grounded together, and the collector of the triode Q1 is as the input
The output end of circuit connects the armature winding of the high frequency transformer.
5. high-frequency induction formula safety detection device according to claim 1, which is characterized in that the high-frequency induction formula safety
Detection device further includes insulating protective layer, and the periphery of the work piece platform is arranged in the insulating protective layer, and is located at the work
Between part platform and the pedestal；
The high-frequency signal emission layer is built in the insulating protective layer.
6. high-frequency induction formula safety detection device according to claim 1, which is characterized in that the detection signal output electricity
Road includes:
It is connect with the output end of the high-frequency signal emission layer, the inductive signal is divided and export voltage division signal and divided
Volt circuit；
The processing circuit of the detection signal is connect, handled the voltage division signal and exported with the bleeder circuit.
7. high-frequency induction formula safety detection device according to claim 6, which is characterized in that the bleeder circuit includes:
Resistance R11, resistance R13, resistance R14 and resistance R16；
The first end of the resistance R11 connects the output end of the high-frequency signal emission layer, and the second end of the resistance R11 is successively
It is grounded by the resistance R13, the resistance R14 and the resistance R16；The connecting pin of the resistance R14 and the resistance R16
It is coupled to the processing circuit by coupled capacitor C6.
8. high-frequency induction formula safety detection device according to claim 6, which is characterized in that the processing circuit includes:
Operational amplifier U2A, resistance R12, resistance R17, resistance R18, resistance R15, resistance R19, capacitor C11, diode D3 and capacitor
C10；
The non-inverting input terminal of the operational amplifier U2A is coupled to as the input terminal of the processing circuit by coupled capacitor C6
The bleeder circuit, the non-inverting input terminal of the operational amplifier U2A also connect high level by the resistance R12 respectively, pass through
The resistance R17 ground connection；The inverting input terminal of the operational amplifier U2A is grounded by the resistance R19, the operation amplifier
The output end of device U2A connects its inverting input terminal by the resistance R18, and the output end of the operational amplifier U2A also successively leads to
Cross the resistance R15 and capacitor C10 ground connection；The cathode of the diode D3 connects supply voltage, the sun of the diode D3
Pole connects the connecting pin of the resistance R15 and the capacitor C10；The power supply of the operational amplifier U2A terminates high level, described
The feeder ear of operational amplifier U2A also passes through the capacitor C11 ground connection.
9. high-frequency induction formula safety detection device according to claim 2, which is characterized in that the high-frequency induction formula safety
Detection device further include:
It is connect with the control chip, the indicating circuit for generating indication signal.
10. a kind of stamping equipment, including pedestal, the work piece platform and punching press control system of setting on the base；It is special
Sign is, further includes the described in any item high-frequency induction formula safety detection devices of claim 1-9, the high-frequency induction formula safety
Detection device is connect with the punching press control system, for sending control signal to the punching press control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821768277.9U CN209070115U (en) | 2018-10-30 | 2018-10-30 | High-frequency induction formula safety detection device and stamping equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821768277.9U CN209070115U (en) | 2018-10-30 | 2018-10-30 | High-frequency induction formula safety detection device and stamping equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209070115U true CN209070115U (en) | 2019-07-05 |
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ID=67096771
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| CN201821768277.9U Active CN209070115U (en) | 2018-10-30 | 2018-10-30 | High-frequency induction formula safety detection device and stamping equipment |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109343127A (en) * | 2018-10-30 | 2019-02-15 | 台州凯思拉智能科技有限公司 | High-frequency induction formula safety detection device, stamping equipment and detection method |
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2018
- 2018-10-30 CN CN201821768277.9U patent/CN209070115U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109343127A (en) * | 2018-10-30 | 2019-02-15 | 台州凯思拉智能科技有限公司 | High-frequency induction formula safety detection device, stamping equipment and detection method |
| CN109343127B (en) * | 2018-10-30 | 2024-05-10 | 台州凯思拉智能科技有限公司 | High-frequency induction type safety detection device, stamping equipment and detection method |
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Denomination of utility model: High frequency induction safety detection device and stamping equipment Effective date of registration: 20231109 Granted publication date: 20190705 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Taizhou Technology Branch Pledgor: TAIZHOU KAISILA INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2023980064753 |