CN208880329U - A kind of breaking detection circuit of numerically-controlled machine tool - Google Patents
A kind of breaking detection circuit of numerically-controlled machine tool Download PDFInfo
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- CN208880329U CN208880329U CN201821705780.XU CN201821705780U CN208880329U CN 208880329 U CN208880329 U CN 208880329U CN 201821705780 U CN201821705780 U CN 201821705780U CN 208880329 U CN208880329 U CN 208880329U
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- breaking
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Abstract
The utility model discloses a kind of breaking detection circuit of numerically-controlled machine tool, including DC power supply, microcontroller and breaking signal acquisition circuit, breaking signal acquisition circuit includes first resistor, workpiece terminals, platen terminals and sampled signal output end；The anode of DC power supply connects workpiece terminals, and the cathode of DC power supply connects platen terminals and sampled signal output end, the sampled signal input of sampled signal output termination microcontroller by first resistor；The signal communication end of microcontroller and control circuit communicate to connect.The signal acquisition circuit structure of the breaking detection circuit of the utility model numerically-controlled machine tool is simple, convenient for safeguarding, cost is relatively low.
Description
[technical field]
The utility model relates to the detection of the breaking of numerically-controlled machine tool more particularly to a kind of breaking detection circuits of numerically-controlled machine tool.
[background technique]
The failure that the lesser cutter of diameter is surprisingly broken frequent occurrence when working on high-precision machining center.Due to knife
Tool is broken no omen, and cracking of cutter post-processing center is being remained in operation according further to the cutter track editted in advance, this is not only wasted
Time, and if bad workpiece flows to downstream process, larger problem can be brought to the assembly of product.
The utility model of Patent No. CN200820187132.X discloses a kind of PCB drilling machine knife-breaking detection device.Packet
Include single-chip microcontroller, Signal interface module and by leading on main shaft shell, air-gap capacitance, spindle rotor, cutter and processed pcb board
The peripheral signal transmission loop that body interconnection is constituted.High frequency transformer is connected in peripheral signal transmission loop, with single-chip microcontroller, signal
Interface module interconnection composition breaking measure loop.When detection, high frequency transformation is driven by single-chip microcontroller output periodic short pulse signal
The primary of device judges whether breaking according to the variation of the waveform of single-chip microcontroller input pin, if detecting breaking phenomenon, output phase is answered
Signal to Control System of NC Machine.
Application No. is the utility models of CN201320146691.7 to disclose a kind of drill bit break detection device, including high frequency
Signal generator, signal amplification circuit, photoelectrical coupler, voltage comparison module, machine tool device, the high-frequency signal hair
Raw device, signal amplification circuit, photoelectrical coupler are sequentially connected by conducting wire, the machine tool device and the photoelectrical coupler
Conducting wire connection；One end of the voltage comparison module connects the photoelectrical coupler by a level circuit, and the voltage compares
The other end of module picks out an output end and a ground terminal；After the high-frequency signal transmitter launches high-frequency signal, through institute
The high-frequency signal that the signal amplification circuit stated generates HF signal generator amplifies, then receives warp by the photoelectrical coupler
Amplified signal, the final high-frequency signal are connected on machine tool device by the diode side of photoelectrical coupler.
Structure is complicated for the sample circuit of above two utility model, and detection device is at high cost.
[summary of the invention]
The technical problem to be solved by the present invention is to provide a kind of breaking signal acquisition circuit structures simply, cost is relatively low
Numerically-controlled machine tool breaking detection circuit.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is a kind of breaking inspection of numerically-controlled machine tool
Slowdown monitoring circuit, including DC power supply, microcontroller and breaking signal acquisition circuit, breaking signal acquisition circuit include first resistor,
Workpiece terminals, platen terminals and sampled signal output end；The anode of DC power supply connects workpiece terminals, direct current
The cathode in source connects platen terminals and sampled signal output end, sampled signal output termination microcontroller by first resistor
The sampled signal input of device；The signal communication end of microcontroller and control circuit communicate to connect.
Above-described breaking detection circuit, including wireless transmitter module；Wireless transmitter module connects the signal of microcontroller
Communication ends；It is realized by wireless transmitter module and is communicated to connect with control circuit in the signal communication end of microcontroller.
Above-described breaking detection circuit, breaking signal acquisition circuit include second resistance and LED light, the second electricity
Resistance and LED light are serially connected between the anode of DC power supply and workpiece terminals.
Above-described breaking detection circuit, the workpiece and platen being mounted on platen insulate, workpiece
It is electrically connected by cutter with platen.
Above-described breaking detection circuit, breaking detection circuit are mounted in monitor station, and monitor station includes for installing
The top surface of workpiece and bottom surface for being fixed on platen, the top and bottom insulation of monitor station；The middle part of monitor station
Including cavity, breaking detection circuit is mounted in the cavity；The workpiece terminals and monitor station of breaking signal acquisition circuit
Top electrical connection, lathe terminals be electrically connecteds with the bottom of monitor station, or are electrically connected across monitor station with platen.
The signal acquisition circuit structure of the numerically-controlled machine tool breaking detection circuit of the utility model is simple, convenient for safeguarding, cost
It is lower.
[Detailed description of the invention]
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the perspective view of the utility model embodiment numerically-controlled machine tool.
Fig. 2 is the partial enlarged view at I position in Fig. 1.
Fig. 3 is the perspective view of 1 breaking monitor station of the utility model embodiment.
Fig. 4 is the perspective view at 1 another visual angle of breaking monitor station of the utility model embodiment.
Fig. 5 is the exploded view of 1 breaking monitor station of the utility model embodiment.
Fig. 6 is the main view of 1 breaking monitor station of the utility model embodiment.
Fig. 7 is the left view of 1 breaking monitor station of the utility model embodiment.
Fig. 8 is the top view of 1 breaking monitor station of the utility model embodiment.
Fig. 9 is A in Fig. 8 to cross-sectional view.
Figure 10 is B in Fig. 8 to cross-sectional view.
Figure 11 is the exploded view of 2 breaking monitor station of the utility model embodiment.
Figure 12 is the perspective view of 2 top plate of the utility model embodiment.
Figure 13 is the perspective view of 2 bottom plate of the utility model embodiment.
Figure 14 is the perspective view of 3 breaking monitor station of the utility model embodiment.
Figure 15 is the exploded view of 3 breaking monitor station of the utility model embodiment.
Figure 16 is the top view of 3 breaking monitor station of the utility model embodiment.
Figure 17 is C in Figure 16 to cross-sectional view.
Figure 18 is the functional block diagram of 4 breaking detection circuit of the utility model embodiment.
Figure 19 is the functional block diagram of 4 control circuit of the utility model embodiment.
Figure 20 is the circuit diagram of 4 breaking signal acquisition circuit of the utility model embodiment.
[specific embodiment]
Mounting means of the utility model embodiment breaking monitor station on numerically-controlled machine tool is as depicted in figs. 1 and 2.Numerical control machine
Bed 200 includes platen 200A, main shaft 200B, the slotting cutter 200C and portable controller for being mounted on the lower end main shaft 200B
400D.Breaking monitor station 100 is mounted on the table top of numerically controlled machine 200A, and workpiece 300 is mounted on breaking monitor station 100
Upper fixture 400 in.
The breaking monitor station 100 of the utility model embodiment includes breaking detection circuit, monitor station ontology 100A and installation
4 spinning cylinder 400A on breaking monitor station ontology 100A, as work piece holder 400.The top surface of monitor station ontology 100A
For installing workpiece, bottom surface is placed on the table top of platen 200A.The top and bottom of monitor station ontology 100A insulate.Inspection
There is the cavity M of an installation breaking detection circuit in the middle part of scaffold tower ontology 100A.
The structure of breaking detection circuit is as shown in figure 18, including battery, microcontroller (MCU), breaking signal acquisition circuit
And wireless transceiver circuit；The sampled signal input of the output termination microcontroller of breaking signal acquisition circuit, wireless receiving and dispatching electricity
Road connects the signal communication end of microcontroller, microcontroller module and the control for being mounted on portable controller 400D by wireless communication
Circuit wireless communication connection processed.Breaking signal acquisition circuit has a workpiece terminals and a lathe terminals.Workpiece wiring
End is electrically connected with the top of monitor station ontology 100A.Lathe terminals are electrically connected with the bottom of monitor station ontology 100A, or are passed through
Monitor station ontology 100A is electrically connected with platen.
Battery is rechargeable battery, and breaking detection circuit further includes battery charger, charging end and start end, starting termination
Microcontroller, charging termination charging circuit.
The structure of 1 breaking monitor station of the utility model embodiment is as shown in Figures 3 to 10, and monitor station ontology 100A includes gold
Belong to the top plate 1 of material production, bottom plate 2,4 block baffles 3, waterproof power switch 4 and the waterproof charging connector of marble material production
5.Top plate 1 is connected and fixed with bottom plate 2 by multiple screws 11.The main part of breaking detection circuit is (including battery, MCU, wireless
Transmission circuit and breaking signal acquisition circuit, but do not include charging end, start end, workpiece terminals and lathe terminals) encapsulation
In signal acquisition process module 10, signal acquisition process module 10 is arranged in cavity M, and cavity M is arranged in top plate 1 and bottom plate
Between 2, it is made of upper cavity and lower chamber.
One groove 101 as upper cavity arranged at the bottom of top plate 1, the top of bottom plate 2 have one as the recessed of lower chamber
The conducting wire lead-out groove 202 of slot 201 and conducting wire lead-out groove 202, bottom plate 2 is connected to groove 201.The groove 101 and cavity of resorption of upper cavity
The combination of groove 201 of body constitutes cavity M.Workpiece terminals, lathe terminals, charging end and the start end of breaking detection circuit point
Not Tong Guo lead 12 connect with signal acquisition process module 10, lead the leading by bottom plate 2 of the lead of charging end and start end
Line lead-out groove 202 is drawn outward.
Workpiece terminals and lathe terminals connect a power spring needle 6 respectively, and there are two install power spring on bottom plate 2
The bearing bore of needle 6, bearing bore 203 are vertically disposed at the lower section of 2 groove 201 of bottom plate, the upper end of bearing bore 203 and the groove 201 of bottom plate 2
The power spring needle 6A of connection, the connection of lathe terminals is fixed in bearing bore 203, the syringe needle of lathe terminals power spring needle 6A
Expose the bottom surface of bottom plate 2 downwards, the deck contact with platen 200A realizes electrical connection.
Bearing bore 204 is vertically disposed at the side of 2 groove 201 of bottom plate, and upper end passes through lateral groove 206 and groove 201
Connection, lateral groove 206 are used for the lead by workpiece terminals.The power spring needle 6 of workpiece terminals is fixed on bearing bore
In 204, the syringe needle of workpiece terminals power spring needle 6B exposes the top surface of bottom plate 2 upwards, contacts with top plate 1, realizes that workpiece connects
Line end is finally electrically connected with workpiece 300.
There is a ring annular groove 205 in the top surface of bottom plate 2, and the annular groove 205 of bottom plate 2 is arranged in the periphery of groove 201, close
Sealing rubber ring 13 is arranged in the annular groove 205 of bottom plate 2.Bearing bore 204 is located at the inner circumferential of 2 annular groove 205 of bottom plate, bottom plate 2
Sealant is filled in conducting wire lead-out groove 202.The needle tubing and bearing bore 203,204 of two power spring needles 6 pass through sealing glue sticking,
The sealing that can realize cavity M well protects signal acquisition process module 10 not broken by the erosion of machine tool coolant or insulation
It is bad.
There are one or so penetrating groove 109, the width of 109 front and back of front and rear width and groove of bottom plate 2 in the bottom surface of top plate 1
Identical, the top of bottom plate 2 is embedded into the groove of 1 bottom surface of top plate.The top of 4 block baffles 3 is fixed by screws in the four of top plate 1
In week, the lower part of 4 block baffles 3 is in the outside of bottom plate 2.There are gaps between the inside and bottom plate 2 of the lower part of front and rear baffle 3A, just
Machine tool coolant in 100 mounting hole 208 of breaking monitor station is flowed out from hole 209.
Close to the baffle 3B of 202 side of backplane conductors lead-out groove, there are two mounting hole 301 and 302,4 Hes of waterproof power switch
Waterproof charging connector 5 is separately fixed in mounting hole 301 and mounting hole 302, and bottom plate 2 is close to mounting hole 301 and mounting hole 302
There is the escape groove 207 of a waterproof power switch 4 and waterproof charging connector 5 in position.The lead of the charging end of breaking detection circuit
It is connect by the escape groove of bottom plate 2 with waterproof charging connector 5, the escape groove and waterproof power supply that the lead of start end passes through bottom plate 2
Switch 4 connects.The escape groove 207 of bottom plate 2 is connected to the conducting wire lead-out groove 202 of bottom plate 2, is convenient for cabling.
The structure of 2 breaking monitor station of the utility model embodiment is as shown in Figure 11 to Figure 13, the original of embodiment 2 and embodiment
Manage identical, slightly difference in structure.
In example 2, the groove 101 as the top cavity M is arranged at the bottom of top plate 1, and the top of bottom plate 2 has as cavity
The groove 201 of the lower part M.Conducting wire lead-out groove 102, the conducting wire lead-out groove 102 of top plate 1 and the groove of top plate 1 are arranged at the bottom of top plate 1
101 connections.Workpiece terminals, lathe terminals, charging end and start end pass through lead and signal acquisition process module 10 respectively
Connection, the lead of charging end and the lead of start end are drawn outward by the conducting wire lead-out groove 102 of top plate 1.Workpiece terminals and
Lathe terminals respectively include power spring needle 6, and bottom plate 2 equally includes the bearing bore of two power spring needles 6, and bearing bore 203 is vertical
Ground is arranged in the lower section of groove 201, and upper end is connected to groove 201, and the power spring needle 6A of lathe terminals is fixed on bearing bore 203
In, the syringe needle of lathe terminals power spring needle 6A exposes the bottom surface of bottom plate 2 upwards, connects with the table top of platen 200A
Electrical connection is realized in touching.Bearing bore 204 is vertically disposed at the side of groove 201, and the power spring needle 6B of workpiece terminals is fixed on
In bearing bore 204, the syringe needle of workpiece terminals power spring needle 6B exposes downwards the top surface of bottom plate 2, contacts with top plate 1, realizes work
Part terminals are finally electrically connected with workpiece 300.
There is a ring annular groove 105 in the bottom surface of top plate 1, and the annular groove 105 of top plate 1 is arranged in the periphery of groove 101, close
Sealing rubber ring 13 is arranged in the annular groove 105 of top plate 1.The bearing bore 204 of bottom plate is located at the inner circumferential of top plate annular groove 105, top
Sealant is filled in the conducting wire lead-out groove 102 of plate 1.The needle tubing and bearing bore 203,204 of power spring needle 6 pass through sealing gluing
It connects.Close to the baffle 3B of 1 conducting wire lead-out groove of top plate, 102 side, there are two mounting hole 301 and 302, waterproof power switch 4 and waterproofs
Charging connector 5 is separately fixed in mounting hole 301 and mounting hole 302.Top plate 1 includes escape groove 107 close to the position of mounting hole,
The escape groove 107 of top plate 1 is connected to conducting wire lead-out groove 102, and the lead of breaking detection circuit charging end passes through the escape groove of top plate 1
107 connect with waterproof charging connector 5, and the lead of start end is connect by escape groove 107 with waterproof power switch 4.
As shown in Figure 14 to Figure 17, monitor station ontology 100A includes the structure of 3 breaking monitor station of the utility model embodiment
The intermediate plate 7 of metal top plate 1, metal base plate 2 and marble material, intermediate plate 7 be arranged in metal top plate 1 and metal base plate 2 it
Between, the two is insulated.Intermediate plate 7 is connected and fixed with metal base plate 2 by multiple attachment screws 14, intermediate plate 7 and metal top plate 1
It is connected and fixed by multiple attachment screws 15.The basic phase of structure of the structure of 3 metal top plate 1 of embodiment and 2 top plate 1 of embodiment
Together, bottom have one as the groove 101 of cavity M and the conducting wire lead-out groove 102 being connected to groove 101, breaking detection circuit
Main part is encapsulated in signal acquisition process module 10, and signal acquisition process module 10 is arranged in the groove 101 of metal top plate 1
In.Workpiece terminals, lathe terminals, charging end and the start end of breaking detection circuit pass through respectively at lead and signal acquisition
It manages module 10 to connect, the lead of charging end and the lead of start end are drawn outward by the conducting wire lead-out groove 102 of metal top plate 1.
Workpiece terminals 12A is fixed in metal top plate 1 by the screw 16 being located in groove 101, is electrically connected with metal top plate 1, then
It is finally electrically connected with workpiece 300 by metal top plate 1.Lathe terminals 12B is fixed on the attachment screw 14 in groove 101
On, it is electrically connected with metal base plate 2, then be electrically connected by metal base plate 2 with the realization of the table top of platen 200A.
There is a ring annular groove 105 in the bottom surface of metal top plate 1, and annular groove 105 is arranged in the outer of metal top plate groove 101
Week, sealing rubber ring 13 are arranged in metal ring groove 105.Sealant is filled in the conducting wire lead-out groove 202 of metal top plate.It is disconnected
The charging end of knife detection circuit is connect with waterproof charging connector 5, and start end is connect with waterproof power switch 4.4 block baffles 3 it is upper
Portion is fixed by screws in the surrounding of top plate 1, and the lower part of 4 block baffles 3 is in the outside of bottom plate 2.Draw close to 1 conducting wire of metal top plate
There are two mounting holes 301 and 302 by the baffle 3B of 202 side of slot out, and waterproof power switch 4 and waterproof charging connector 5 are fixed respectively
In mounting hole 301 and 302, metal top plate 1 includes escape groove 107, the escape groove of metal top plate 1 close to the position of mounting hole
107 are connected to the conducting wire lead-out groove 202 of metal top plate 1, and the lead of charging end passes through the escape groove 107 and waterproof of metal top plate 1
Charging connector 5 connects, and the lead of start end is connect by the escape groove 107 of metal top plate 1 with waterproof power switch 4.
The breaking detection system of 4 numerically-controlled machine tool of the utility model embodiment as shown in Figure 18 to Figure 20, including at least one
Breaking detection circuit and control circuit.Control circuit is portable controller 400D shown in FIG. 1, and portable controller 400D can
To communicate to connect with the breaking detection circuit of more lathes, the breaking detection circuit of more lathes is controlled.
Breaking detection circuit is as shown in Figure 18 and Figure 20, including rechargeable battery, microcontroller, wireless transmitter module, electricity
Pond charging circuit and breaking signal acquisition circuit.Wireless transmitter module connects the signal communication end of microcontroller.
Breaking signal acquisition circuit includes that resistance R1, resistance R2, LED light D1, workpiece terminals, platen connect
Line end and sampled signal output end.The anode of rechargeable battery B connects workpiece terminals, and resistance R2 and LED light are serially connected in can
Between the anode and workpiece terminals of rechargeable battery B；The cathode of rechargeable battery B connects platen terminals by resistance R1
With sampled signal output end, the sampled signal input of sampled signal output termination microcontroller；The signal communication of microcontroller
It is realized by wireless transmitter module and is communicated to connect with control circuit in end.
Breaking detection circuit further includes storage chip, cache chip, battery capacity detection module and battery capacity indication lamp, breaking
Storage chip, cache chip, battery capacity detection module and the battery capacity indication lamp of detection circuit connect microcontroller respectively.Cache core
Piece is used to temporarily store collected data；The voltage data that storage chip is used to save voltage data template and sampling obtains.
Control circuit includes rechargeable battery, microcontroller, wireless transmitter module, battery charger, human-computer interaction electricity
Road and warning circuit.Human-computer interaction circuit, warning circuit and the wireless transmitter module of control circuit distinguish the micro- of connection control circuit
Controller.The wireless transmitter module of breaking detection circuit and the wireless transmitter module of control circuit communicate to connect.Warning circuit packet
Include buzzer and alarm lamp.
Control circuit includes battery capacity detection module and battery capacity indication lamp, the battery capacity detection module of control circuit and
The microcontroller of battery capacity indication lamp difference connection control circuit.
Human-computer interaction circuit includes touch screen and multiple keys, the micro-control of touch screen and multiple keys difference connection control circuit
Device processed.
When numerically-controlled machine tool is run, breaking signal acquisition circuit is acquired the voltage of platen in real time and deposited by microcontroller
It stores up and compares in storage chip by the voltage template that workpiece cutter track is formed, when comparing out the voltage acquired appearance exception, break
The microcontroller notice control circuit alarm of knife detection circuit.
The breaking detection system of the utility model above embodiments uses independent breaking detection circuit and independent control
Circuit, between the two wireless communication connection, breaking monitor station equipped with breaking detection circuit and equipped with the portable of control circuit
Controller using when all do not need wiring, do not need to be transformed the circuit of lathe；The circuit of modular is easy to remove and ties up
Shield, when failure, can integrally replace, and not need to repair on lathe.
The signal acquisition circuit structure of the utility model above embodiments breaking detection circuit is simple, convenient for safeguarding, cost
It is lower.
Claims (5)
1. a kind of breaking detection circuit of numerically-controlled machine tool, including DC power supply, microcontroller and breaking signal acquisition circuit, special
Sign is that breaking signal acquisition circuit includes first resistor, workpiece terminals, platen terminals and sampled signal output
End；The anode of DC power supply connects workpiece terminals, the cathode of DC power supply by first resistor connect platen terminals and
Sampled signal output end, the sampled signal input of sampled signal output termination microcontroller；The signal communication end of microcontroller
It is communicated to connect with control circuit.
2. breaking detection circuit according to claim 1, which is characterized in that including wireless transmitter module；Wireless transmission mould
Block connects the signal communication end of microcontroller；Realized by wireless transmitter module logical with control circuit in the signal communication end of microcontroller
Letter connection.
3. breaking detection circuit according to claim 1, which is characterized in that breaking signal acquisition circuit includes second resistance
And LED light, second resistance and LED light are serially connected between the anode of DC power supply and workpiece terminals.
4. breaking detection circuit according to claim 1, which is characterized in that the workpiece and machine being mounted on platen
Bed workbench insulation, workpiece are electrically connected by cutter with platen.
5. breaking detection circuit according to claim 1, which is characterized in that breaking detection circuit is mounted in monitor station,
Monitor station includes the top surface for installing workpiece and the bottom surface for being fixed on platen, the top and bottom of monitor station
Insulation；The middle part of monitor station includes cavity, and breaking detection circuit is mounted in the cavity；The work of breaking signal acquisition circuit
Part terminals are electrically connected with the top of monitor station, and lathe terminals are electrically connected with the bottom of monitor station, or pass through monitor station and machine
Bed workbench electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821705780.XU CN208880329U (en) | 2018-10-22 | 2018-10-22 | A kind of breaking detection circuit of numerically-controlled machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821705780.XU CN208880329U (en) | 2018-10-22 | 2018-10-22 | A kind of breaking detection circuit of numerically-controlled machine tool |
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| Publication Number | Publication Date |
|---|---|
| CN208880329U true CN208880329U (en) | 2019-05-21 |
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| CN201821705780.XU Active CN208880329U (en) | 2018-10-22 | 2018-10-22 | A kind of breaking detection circuit of numerically-controlled machine tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304456A (en) * | 2019-07-30 | 2021-02-02 | 拓卡奔马机电科技有限公司 | Detection circuit suitable for cutting bed cut-off knife, cutting bed cut-off knife and cutting bed |
-
2018
- 2018-10-22 CN CN201821705780.XU patent/CN208880329U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304456A (en) * | 2019-07-30 | 2021-02-02 | 拓卡奔马机电科技有限公司 | Detection circuit suitable for cutting bed cut-off knife, cutting bed cut-off knife and cutting bed |
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