CN209664947U - Photoelectric edge-searching device - Google Patents

Abstract

The utility model discloses a kind of photoelectric edge-searching devices, including contact type probe sensor, for generating first control signal or second control signal；Electromagnetic generation module；Accumulator module is electrically connected with Electromagnetic generation module；First indicating unit is electrically connected with accumulator module, and whether the tank voltage for being used to indicate accumulator module is enough；Second indicating unit is electrically connected with accumulator module in parallel with the first indicating unit, be used to indicate contact type probe sensor whether contact workpiece；Switch unit, it is electrically connected between the second indicating unit and accumulator module and is electrically connected with contact type probe sensor, the first control signal or second control signal for being generated according to contact type probe sensor accordingly control being turned on or off for route between the second indicating unit and accumulator module.Its versatile, reliable performance, long service life and measurement accuracy are high, can also be indicated even if encountering non-conductive workpiece.

Description

Photoelectric edge-searching device

Technical field

The utility model relates to numerically controlled processing equipment technical field more particularly to a kind of photoelectric edge-searching devices.

Background technique

Seeking border can be used for the accurate of part to be processed base position as one of numerically controlled processing equipment detection instrument Positioning, can also be corrected and measure to workpiece.

Photoelectric edge-searching device be one of the most common one kind, it utilize optoelectronic induction principle, when on seeking border probe with Small offset can occur when contacting for electrically conductive workpiece, and electric current forming circuit, indicator light can be glittering, while also capable of emitting buzzer. Photoelectric edge-searching device has many advantages, such as to be quick on the draw compared with machinery-type edge finding device, precision is high, response is intuitive, easy to operate.

However, traditional photoelectric edge-searching device mostly uses outer circulation type, in use must part, lathe have conduction Performance could use, this limits the versatility of photoelectric edge-searching device to a certain extent.Moreover, traditional photoelectric edge-searching device is all adopted It is powered with battery, photoelectric alarm signal will not be generated probe is contacted with workpiece in battery capacity deficiency, so as to cause Measurement result error even damage instrument.In addition, the indicator light of photoelectric edge-searching device uses normally opened triggering mode, survey can be reduced in this way The reliability of amount, and also result in the excessive of instrument when by external disturbance and collide and damage.Disadvantages mentioned above also affects light The application range and service life of electric seeking border.

Utility model content

The utility model provides a kind of photoelectric edge-searching device to solve above-mentioned technical problem, and versatile, reliable performance makes With the service life, long and measurement accuracy is high, and can also be indicated even if encountering non-conductive workpiece.

In order to solve the above technical problems, the utility model provides a kind of photoelectric edge-searching device, comprising: contact type probe sensing Device is used to contact with workpiece, generates first control signal, does not contact with workpiece, generates second control signal；Electromagnetic generation Module is used to rotate power generation；Accumulator module is electrically connected, for storing the electromagnetism with the Electromagnetic generation module The electric energy of electricity generation module generation is simultaneously powered for outside；First indicating unit is electrically connected with the accumulator module, is used for Indicate whether the tank voltage of the accumulator module is enough；Second indicating unit, with first indicating unit with simultaneously The mode of connection is electrically connected with the accumulator module, be used to indicate the contact type probe sensor whether contact workpiece；With And switch unit, be electrically connected between second indicating unit and the accumulator module and with the contact type probe Sensor electrical connection, when the tank voltage for indicating the accumulator module in first indicating unit is enough, according to The first control signal or the second control signal that the contact type probe sensor generates accordingly control described second Route is turned on or off between indicating unit and the accumulator module.

Further, first indicating unit is LED light.

Further, second indicating unit includes LED light, the LED light and conduct as second indicating unit The LED light of first indicating unit has different luminous colors.

Further, second indicating unit includes buzzer.

Further, the photoelectric edge-searching device includes supporting rod, and the supporting rod includes the body of rod and is set to body of rod one end Intermediate cavity, the contact type probe sensor is fixedly arranged on end face of the intermediate cavity far from described body of rod one end, described Electromagnetic generation module and the accumulator module are all set in inside the intermediate cavity, wherein drive the Electromagnetic generation The rotating handle of module rotation power generation is connect from outside through the side wall of the intermediate cavity with the Electromagnetic generation module, described First indicating unit and second indicating unit are from the internal side wall for passing through the intermediate cavity to exposing outside.

Further, the Electromagnetic generation module includes Electromagnetic generation device and links with the rotor of the Electromagnetic generation device Drive up mechanism, and the mechanism that drives up is made of two-stage gear comprising driving gear, driven gear and small tooth Wheel, the driven gear have the first order gear engaged with the driving gear and the second level tooth engaged with the pinion gear Wheel, the number of teeth of the driving gear are greater than the number of teeth of first order gear in the driven gear, second in the driven gear The number of teeth of grade gear is greater than the number of teeth of the pinion gear again, and first order gear is opposite with second level gear solid in the driven gear Fixed, the pinion gear is sleeved and fixed on the rotor of the Electromagnetic generation device, and the driving gear is connect with rotating handle.

Further, the number of teeth of the driving gear is four times of the number of teeth of first order gear in the driven gear, institute The number of teeth for stating second level gear in driven gear is four times of the number of teeth of first gear, second level gear in the driven gear The number of teeth is four times of the number of teeth of the pinion gear, and then realizes 16 times of acceleration by the mechanism that drives up.

Further, the accumulator module includes that rectifier bridge, storage capacitor, voltage comparator and voltage are adjusted The output end of device, the Electromagnetic generation module is electrically connected with the input terminal of the rectifier bridge, the output end of the rectifier bridge and institute Storage capacitor electrical connection is stated, the input terminal of the voltage comparator is electrically connected with the storage capacitor, output end and the voltage The input terminal of adjuster is electrically connected, and the output end of the voltage regulator is electrically connected with first indicating unit and passes through described Switch unit is electrically connected with second indicating unit.

Further, the voltage comparator is with sluggish voltage comparator, conduction threshold and disconnection critical value It is adjustable；The storage capacitor uses the capacitor of 0.1F.

Further, the contact type probe sensor includes the shell for being provided with slide rail, one end positioned at described outer In shell and the other end is located at the shell is outer and stress can slightly be moved by the slide rail working beam, setting described The magnetite of one end that working beam is located in the shell, one end with the cage connection and bullet that the other end is connect with the magnetite The magnetic force detection circuit of spring and the detection mobile changes of magnetic field generated of the magnetite since the working beam drives, the magnetic Power detection circuit is electrically connected with the switch unit and generates when detecting changes of magnetic field the first control signal, do not detect The second control signal is generated when to changes of magnetic field.

The photoelectric edge-searching device of the utility model, has the following beneficial effects:

By setting Electromagnetic generation module and accumulator module, electricity can be supplemented at any time for the first indicating unit With the instruction of the second indicating unit, versatile, reliable performance, long service life and measurement accuracy are high；

And second indicating unit be electrically connected with accumulator module by switch unit, and pass through contact type probe sensing Device generates first control signal in contact workpiece, not in contact with workpiece when generate second control signal to control the switch unit It conducting and disconnects, thus whether be not dependent on workpiece whether the work of the second indicating unit conductive, as long as accumulator module Voltage it is enough, can also be indicated even if encountering non-conductive workpiece.

Detailed description of the invention

Fig. 1 is the three-dimensional structure diagram of the utility model photoelectric edge-searching device.

Fig. 2 is the circuit diagram of photoelectric edge-searching device shown in Fig. 1.

Fig. 3 is the principle assumption diagram of contact type probe sensor in photoelectric edge-searching device shown in Fig. 1.

Fig. 4 is the perspective view of supporting rod in photoelectric edge-searching device shown in Fig. 1.

Fig. 5 is the three-dimensional structure diagram of Electromagnetic generation module in photoelectric edge-searching device shown in Fig. 1.

Fig. 6 is the main view of Electromagnetic generation module shown in Fig. 5.

Specific embodiment

The utility model is described in detail with embodiment with reference to the accompanying drawing.

The utility model provides a kind of photoelectric edge-searching device.It carries out in conjunction with Fig. 1 to Fig. 6 refering to the photoelectric edge-searching device includes connecing It touch probe sensor 1, Electromagnetic generation module 2, accumulator module 3, the first indicating unit 4, the second indicating unit 5 and opens Close unit 6.

Specifically, contact type probe sensor 1, is used to contact with workpiece, generate first control signal, not with work Part contact then generates second control signal.

Electromagnetic generation module 2 is used to rotate power generation.

Accumulator module 3 is electrically connected with Electromagnetic generation module 2, for storing the electric energy of the generation of Electromagnetic generation module 2 And for powering outward.

First indicating unit 4, is electrically connected with accumulator module 3, is used to indicate the tank voltage of accumulator module 3 Whether enough.First indicating unit 4 is normally open, in running order as long as tank voltage is sufficient.

Second indicating unit 5 is electrically connected in parallel with accumulator module 3 with the first indicating unit 4, is used for Indicate contact type probe sensor 1 whether contact workpiece.

Switch unit 6 is electrically connected between the second indicating unit 5 and accumulator module 3 and passes with contact type probe Sensor 1 is electrically connected, and when enough for the tank voltage in the first indicating unit 4 instruction accumulator module 3, is visited according to contact The first control signal or second control signal that needle sensor 1 generates accordingly control the second indicating unit 5 and accumulator module 3 Between route be turned on or off.In turn, when the tank voltage of accumulator module 3 is enough, the second indicating unit 5 is with route Conducting and work, stop working with the disconnection of route.

In one embodiment, the contact type probe sensor 1 citing can be sensed using the contact type probe of AX1 type Device 1.As shown in Figure 3, wherein the contact type probe sensor 1 includes the shell 11 for being provided with slide rail 12, one end positioned at outer Shell 11 is interior and the other end is located at working beam 13, setting that outside shell 11 and stress can slightly be moved by slide rail 12 and is working Bar 13 be located at the magnetite 14 of one end in shell 11, one end and the connection of shell 11 and spring 15 that the other end is connect with magnetite 14, And detection drives the magnetic force detection circuit 16 of the mobile changes of magnetic field generated of magnetite 14 due to working beam 13.Magnetic force detection electricity Road 16 is further electrically connected with switch unit 6, and generates first control signal when detecting changes of magnetic field and magnetic is not detected Second control signal is generated when the variation of field.The first control signal can be set to ON signal, be connected for control switch unit 6 Route, the second control signal can be set to OFF signal, be used for 6 open-circuit line of control switch unit.

In one embodiment, which is LED light.Second indicating unit 5 includes but is not limited to be LED light.Wherein, there is different illuminant colours from the LED light as the first indicating unit 4 as the LED light of the second indicating unit 5 It is color.For example, the luminous color of the LED light as the first indicating unit 4 is green, the hair of the LED light as the second indicating unit 5 Photochromic coloured silk is red.When the tank voltage abundance of accumulator module 3, LED light as the second indicating unit 5 is normally opened to be lighted Display green, to provide visual indication to user, user further can carry out work using photoelectric edge-searching device in the case The operation such as part centering or measurement workpiece depth, when contact type probe sensor 1 touches workpiece, the second indicating unit 5 is such as red Color LED light is lighted, and workpiece is encountered in expression.It thus will not be since not enough operation causes to cause to it photoelectric edge-searching device electricity by force The damage of structure can be improved the detection accuracy and service life of the photoelectric edge-searching device.

Further, the second indicating unit 5 can also include but is not limited to buzzer.That is, the second indicating unit 5 can be with LED light or buzzer is used alone, the rwo can also be used in combination.

In one embodiment, as shown in figure 4, photoelectric edge-searching device includes supporting rod 7, supporting rod 7 includes 71 He of the body of rod It is set to the intermediate cavity 72 of 71 one end of the body of rod.Supporting rod 7 is mounted in lathe headstock in actual work carry out using.It should Contact type probe sensor 1 is fixedly arranged on end face of the intermediate cavity 72 far from 71 one end of the body of rod, Electromagnetic generation module 2 and accumulator Module 3 is all set in inside intermediate cavity 72.Wherein, drive the rotating handle 23 of the rotation power generation of Electromagnetic generation module 2 from outside Side wall across intermediate cavity 72 is connect with Electromagnetic generation module 2.And first indicating unit 4 and the second indicating unit 5 from inside Side wall across intermediate cavity 72 is intuitively observed to exposing outside.

In one embodiment, as shown in figure 5, Electromagnetic generation module 2 includes Electromagnetic generation device 21 and and Electromagnetic generation The mechanism 22 that drives up that the rotor 211 of device 21 links.The citing of mechanism 22 of driving up can be made of two-stage gear, be wrapped Driving gear 221, driven gear 222 and pinion gear 223 are included, driven gear 222 has first engaged with driving gear 221 Grade gear 2221 and the second level gear 2222 that is engaged with pinion gear 223, first order gear 2221 and second in driven gear 222 Grade gear 2222 is relatively fixed, and pinion gear 223 is sleeved and fixed on the rotor 211 of Electromagnetic generation device 21, driving gear 221 and rotation Change hands the connection of handle 23.The number of teeth of the driving gear 221 is greater than the number of teeth of first order gear 2221 in driven gear 222, should be from The number of teeth of second level gear 2222 is greater than the number of teeth of pinion gear 223 again in moving gear 222, therefore realizes that amplification accelerates hair step by step Electricity.

For example, the number of teeth of driving gear 221 is four times of the number of teeth of first order gear 2221 in driven gear 222, The number of teeth of second level gear 2222 is four times of the number of teeth of first gear, second level tooth in driven gear 222 in driven gear 222 The number of teeth of wheel 2222 is four times of the number of teeth of pinion gear 223, and then adding by 4 × 4=16 times of the realization of mechanism 22 of driving up Speed, and then the charging rate of accumulator module 3 is greatly accelerated.

In one embodiment, with continued reference to Fig. 2, accumulator module 3 includes rectifier bridge 31, storage capacitor 32, electricity Pressure comparator 33 and voltage regulator 34, each electrical component are generally integrated on a circuit board.Electromagnetic generation module 2 it is defeated Outlet is electrically connected with the input terminal of rectifier bridge 31, and the output end of rectifier bridge 31 is electrically connected with storage capacitor 32, voltage comparator 33 Input terminal be electrically connected with storage capacitor 32, output end is electrically connected with the input terminal of voltage regulator, the output of voltage regulator End is electrically connected with the first indicating unit 4 and is electrically connected by switch unit 6 above-mentioned with the second indicating unit 5.Preferably, voltage Comparator 33 is with sluggish voltage comparator 33.

The working principle of the photoelectric edge-searching device is briefly discussed below:

Electromagnetic generation module 2(is specially Electromagnetic generation device 21) generate alternating current by rectifier bridge 31 rectification after be stored into 32 the inside of storage capacitor, when the voltage on storage capacitor 32 reaches the conduction threshold (V of voltage comparator 33 _HTH ) when, voltage ratio Be connected compared with device 33, MAX666 chip can be selected by subsequent voltage regulator 34() loaded to the first indicating unit 4() power supply. Conversely, when the voltage on storage capacitor 32 is lower than the disconnection critical value (V of voltage comparator 33 after overdischarge _LTH ) when, circuit is disconnected It opens, Electromagnetic generation module 2 charges to storage capacitor 32 again, repeatedly.

The citing of voltage comparator 33 can be using low energy consumption, critical voltage (i.e. conduction threshold and disconnection critical value) Adjustable MAX6433 chip, it is produced by MAXIM company, connects non-essential resistance R1, R2 and R3 by port 1,3 and 5 to set Set critical value V _HTH And V _LTH Size.

By 1,4 and No. 6 terminal of 34 chip of voltage regulator according to the corresponding outer connecting resistance of connection shown in Fig. 2, so that it may The DC output voltage of+3.3 stable V is provided, resistance value is respectively set to R4=1.5M Ω, R5 according to the related definition of chip =1MΩ.Correspondingly, the critical value of voltage comparator 33 is set to V _HTH =5 V and V _LTH =3V, according to MAX6433 chip Resistance value is set as R1=1.7M Ω by related definition, and R2=100k Ω, R3=300k Ω ensures required charge threshold level.

For example, when the value of tank voltage in storage capacitor 32 is greater than 5V, the first external indicating unit 4 is green LED light is lighted.

In a preferred embodiment, storage capacitor 32 is set as the capacitor of 0.1F.Rapidly rotate rotating handle 2360 seconds After stop, the first indicating unit 4 and the second indicating unit 5 can continue to light 128 seconds, it is sufficient to meet the use in work.

The photoelectric edge-searching device of the utility model, has the following beneficial effects:

By setting Electromagnetic generation module 2 and accumulator module 3, electricity can be supplemented at any time with single for the first instruction The instruction of member 4 and the second indicating unit 5, versatile, reliable performance, long service life and measurement accuracy are high；

And second indicating unit 5 be electrically connected with accumulator module 3 by switch unit 6, and pass through contact type probe Sensor 1 generates first control signal in contact workpiece, not in contact with workpiece when generate second control signal to control the switch The conducting and disconnection of unit 6, thus whether be not dependent on workpiece whether the work of the second indicating unit 5 conductive, as long as energy storage The voltage of circuit module 3 is enough, can also be indicated even if encountering non-conductive workpiece.

The above is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all benefits The equivalent structure or equivalent flow shift made by the utility model specification and accompanying drawing content, is applied directly or indirectly in it His relevant technical field, is also included in the patent protection scope of the utility model.

Claims (10)

1. a kind of photoelectric edge-searching device characterized by comprising

Contact type probe sensor is used to contact with workpiece, generates first control signal, does not contact with workpiece, generates Two control signals；

Electromagnetic generation module is used to rotate power generation；

Accumulator module is electrically connected with the Electromagnetic generation module, the electricity generated for storing the Electromagnetic generation module It can and power for outside；

First indicating unit is electrically connected with the accumulator module, is used to indicate the energy storage electricity of the accumulator module It whether enough presses；

Second indicating unit is electrically connected with the accumulator module in parallel with first indicating unit, is used In indicate the contact type probe sensor whether contact workpiece；

And switch unit, it is electrically connected between second indicating unit and the accumulator module and is contacted with described Formula probe sensor electrical connection, for indicating that the tank voltage of the accumulator module is enough in first indicating unit When, the first control signal or the second control signal generated according to the contact type probe sensor accordingly controls institute State being turned on or off for route between the second indicating unit and the accumulator module.

2. photoelectric edge-searching device according to claim 1, it is characterised in that:

First indicating unit is LED light.

3. photoelectric edge-searching device according to claim 2, it is characterised in that:

Second indicating unit includes LED light, and the LED light as second indicating unit indicates list with as described first The LED light of member has different luminous colors.

4. photoelectric edge-searching device according to claim 2, it is characterised in that:

Second indicating unit includes buzzer.

5. photoelectric edge-searching device according to claim 1, it is characterised in that:

The photoelectric edge-searching device includes supporting rod, and the supporting rod includes the body of rod and the intermediate cavity for being set to body of rod one end, institute State contact type probe sensor and be fixedly arranged on end face of the intermediate cavity far from described body of rod one end, the Electromagnetic generation module and The accumulator module is all set in inside the intermediate cavity, wherein drives the Electromagnetic generation module rotation power generation Rotating handle is connect from outside through the side wall of the intermediate cavity with the Electromagnetic generation module, first indicating unit and Second indicating unit is from the internal side wall for passing through the intermediate cavity to exposing outside.

6. photoelectric edge-searching device according to claim 1, it is characterised in that:

The Electromagnetic generation module includes Electromagnetic generation device and the mechanism that drives up that links with the rotor of the Electromagnetic generation device, The mechanism that drives up is made of two-stage gear comprising driving gear, driven gear and pinion gear, the driven gear With the first order gear engaged with the driving gear and the second level gear engaged with the pinion gear, the driving gear The number of teeth be greater than the number of teeth of first order gear in the driven gear, the number of teeth of second level gear is greater than again in the driven gear The number of teeth of the pinion gear, first order gear and second level gear are relatively fixed in the driven gear, the pinion gear socket It is fixed on the rotor of the Electromagnetic generation device, the driving gear is connect with rotating handle.

7. photoelectric edge-searching device according to claim 6, it is characterised in that:

The number of teeth of the driving gear is four times of the number of teeth of first order gear in the driven gear, in the driven gear The number of teeth of secondary gear is four times of the number of teeth of first gear, and the number of teeth of second level gear is the small tooth in the driven gear Four times of the number of teeth of wheel, and then 16 times of acceleration are realized by the mechanism that drives up.

8. photoelectric edge-searching device according to claim 1, it is characterised in that:

The accumulator module includes rectifier bridge, storage capacitor, voltage comparator and voltage regulator, the Electromagnetic generation The output end of module is electrically connected with the input terminal of the rectifier bridge, and the output end of the rectifier bridge is electrically connected with the storage capacitor It connects, the input terminal of the voltage comparator is electrically connected with the storage capacitor, the input terminal of output end and the voltage regulator Electrical connection, the output end of the voltage regulator be electrically connected with first indicating unit and pass through the switch unit with it is described The electrical connection of second indicating unit.

9. photoelectric edge-searching device according to claim 8, it is characterised in that:

The voltage comparator is with sluggish voltage comparator, and conduction threshold and disconnection critical value are adjustable；

The storage capacitor uses the capacitor of 0.1F.

10. photoelectric edge-searching device according to claim 1, it is characterised in that:

The contact type probe sensor includes that the shell for being provided with slide rail, one end are located in the shell and other end position In outside the shell and stress can be located at by working beam that the slide rail slightly moves, setting in the working beam it is described The magnetite of one end in shell, one end and the cage connection and spring that the other end is connect with the magnetite and detection by The magnetic force detection circuit of the mobile changes of magnetic field generated of the magnetite, the magnetic force detection circuit and institute are driven in the working beam State production when switch unit is electrically connected and generates the first control signal when detecting changes of magnetic field, changes of magnetic field is not detected The raw second control signal.