CN203622081U - Trigger device for circuit board drilling machine broken knife detection - Google Patents
Trigger device for circuit board drilling machine broken knife detection Download PDFInfo
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- CN203622081U CN203622081U CN201320660196.8U CN201320660196U CN203622081U CN 203622081 U CN203622081 U CN 203622081U CN 201320660196 U CN201320660196 U CN 201320660196U CN 203622081 U CN203622081 U CN 203622081U
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Abstract
The utility model discloses a trigger device for circuit board drilling machine broken knife detection. When a drilling machine drills a hole, distributed capacitors are generated between a main shaft stator and a rotor and between a metal workbench and a hole drilling PCB. The trigger device comprises a signal collecting and processing circuit for collecting oscillator signals generated by the distributed capacitors. The output end of the signal collecting and processing circuit is connected with a DSP control circuit which is further connected with a position trigger signal output circuit, and the position trigger signal output circuit is connected with a motion control card of the drilling machine. The trigger device can dynamically collect the reference frequency according to PCBs with different sizes and is used for detecting broken knives, the design of the overall circuit is optimized, and the trigger device has the advantages of being high in sensitivity, convenient to install and the like. The trigger device can met the requirements for broken knife detecting of printed circuit board drilling machine metal workbenches under the situation that the PCBs are different in size.
Description
Technical field
The breaking that the utility model relates to printed substrate drilling machine detects, particularly a kind of device and acquisition method thereof of dynamic acquisition breaking detection reference frequency.
Background technology
The workbench of printed substrate numerical control drilling machine adopts metallic work table processing micropore at present; to efficiency; the requirement of precision is more and more higher; in PCB capillary processing process, once there is breaking situation, must take immediately to shut down and process; not only avoid the generation of accident in process; also the efficiency and the quality that have improved lathe running, especially, in the case of processed PCB size often changes, breaking detects just more difficult.And the method that more existing breakings detect often adopts fixed reference frequency, there is the problems such as detection sensitivity is low, fault rate is high.Therefore, can dynamic acquisition breaking detection reference signal very important.
Utility model content
For overcoming the shortcomings and deficiencies of above-mentioned prior art, the utility model provides a kind of flip flop equipment and triggering method thereof detecting for wiring board drilling machine breaking.
The technical scheme that the utility model adopts is:
A kind of flip flop equipment detecting for wiring board drilling machine breaking, described drilling machine when boring main shaft stator and rotor between, between metallic work table and boring pcb board, all produce distribution capacity, described distribution capacity is all connected with oscillating circuit, described device comprises the signal acquisition processing circuit that gathers the oscillator signal that produces of above-mentioned each distribution capacity, described signal acquisition processing circuit output connects DSP control circuit, on described DSP control circuit, be also connected with location triggered signal output apparatus, described location triggered signal output apparatus connects the motion control card of drilling machine.
Preferably, while boring by drilling machine, the enable signal output circuit of the signal controlling that the oscillating circuit that distribution capacity connects produces, whether described enable signal output circuit is connected to DSP control circuit, control DSP control circuit and work.
Preferably, described device also comprises the telecommunication circuit being connected with DSP control circuit, realizes data and the command transfer of DSP control circuit and host computer.
Further preferred, described signal acquisition processing circuit comprises the voltage comparator of two series connection, the inverting input of its first voltage comparator connects described distribution capacity, and the output of second voltage comparator connects a phase inverter, and inverter output connects DSP control circuit.
Necessary, being also included as described each circuit module provides the power circuit of operating voltage.
The beneficial effects of the utility model are, the utility model is according to different size pcb board, dynamic acquisition reference frequency, detect for breaking, and design optimization the design of overall circuit, there is high sensitivity, the advantage such as easy for installation, adapt to the in the situation that of different PCB size the requirement that printed substrate drilling machine metallic work table breaking detects.
Accompanying drawing explanation
Fig. 1 breaking described in the utility model detects the schematic diagram of flip flop equipment and triggering method thereof;
Fig. 2 is the embodiment schematic diagram of power circuit described in the utility model.
Fig. 3 is the embodiment schematic diagram of DSP control module described in the utility model.
Fig. 4 is the embodiment schematic diagram of signal acquisition process described in the utility model.
Fig. 5 is the embodiment schematic diagram of location triggered signal output apparatus described in the utility model.
Fig. 6 is the embodiment schematic diagram of telecommunication circuit described in the utility model.
Fig. 7 is the embodiment schematic diagram of enable signal output circuit described in the utility model.
The specific embodiment
Understand technology contents of the present utility model for convenience of those skilled in the art, below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, the flip flop equipment detecting for wiring board drilling machine breaking that the utility model discloses, comprise gather described drilling machine when boring main shaft stator and rotor between, the signal acquisition processing circuit of oscillator signal that between metallic work table and boring pcb board, distribution capacity produces, described signal acquisition processing circuit output connects DSP control circuit, on described DSP control circuit, be also connected with location triggered signal output apparatus, described location triggered signal output apparatus connects the motion control card of drilling machine.Whether described device also comprises the enable signal output circuit of the signal controlling being produced by drilling machine boring, and described enable signal output circuit is connected to DSP control circuit, control DSP control circuit and work.Described device also comprises the telecommunication circuit being connected with DSP control circuit, realizes data and the command transfer of DSP control circuit and host computer.
This device is also included as described each circuit module provides the power circuit of operating voltage, as shown in Figure 2, described power circuit adopts LM2576T switching mode voltage stabilizing reducing transformer, produces 5V burning voltage by 24 voltages, then adopts low turn-on voltage source of stable pressure LD1117 to produce 3.3V voltage.The signal acquisition processing circuit of this device and location triggered signal output apparatus are by 24V power voltage supply, and DSP control circuit adopts 3.3V power voltage supply, and telecommunication circuit and enable signal module adopt 5V power voltage supply.
As shown in Figure 3, be the annexation of DSP control circuit and each modular circuit.DSP port IC1, IC2, IC7, IC8 Yu Si road signal acquisition process module output pin IN_A successively～IN_D connects; DSP port RB4～RB7 is connected with the output pin CTM1～CTM4 of location triggered signal output apparatus; DSP port EN, DI, DO are connected with EN, DI, the DO pin of telecommunication circuit, and the ENABLE pin of RA4 port and enable signal is connected.
As shown in Figure 4, described signal acquisition processing circuit comprises the voltage comparator of two series connection, the inverting input of its first voltage comparator connects described distribution capacity, the output of second voltage comparator connects a phase inverter, inverter output connects DSP control circuit, and the inverting input of described the first voltage comparator also connects a ground connection Zener diode Z1.
As shown in Figure 5, described location triggered signal output adopts 4 road photoelectricity couplings and chip PS2805-4 to send triggering signal.
As shown in Figure 6, telecommunication circuit adopts differential bus transceiver LT1785I to provide data line overvoltage error protection on sheet for telecommunication circuit.
As shown in Figure 7, enable signal output circuit adopts optocoupler and two phase inverters of serial connection successively, in the time that drilling machine starts to hole, enable signal output is controlled DSP control circuit and is started working, when drilling machine has bored behind a hole, enable signal output is controlled DSP control circuit and is quit work
The in the situation that of different pcb board size, when spindle rotor touches pcb board, between main shaft stator and rotor, distribution capacity capacity between metallic work table and boring pcb board changes, oscillation signal frequency is changed, oscillator signal is delivered to the processing of DSP control circuit through signal acquisition processing circuit, DSP control circuit calculates the average frequency in the Δ T time before this, as reference frequency, in the time that the frequency of a certain moment t is greater than the Δ f of setting with the difference of reference frequency now, conclude the breaking situation that now may occur, DSP control circuit transmits the motion control card of order to drilling machine by location triggered signal output apparatus, and then Z axis position when triggering motion control card when boring record drill bit and getting into pcb board, detect and whether occur breaking.
Above-described embodiment is only wherein specific implementation of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection domain of the present utility model.
Claims (5)
1. the flip flop equipment detecting for wiring board drilling machine breaking, described drilling machine when boring main shaft stator and rotor between, between metallic work table and boring pcb board, all produce distribution capacity, described distribution capacity is all connected with oscillating circuit, it is characterized in that: described device comprises the signal acquisition processing circuit that gathers the oscillator signal that produces of above-mentioned each distribution capacity, described signal acquisition processing circuit output connects DSP control circuit, on described DSP control circuit, be also connected with location triggered signal output apparatus, described location triggered signal output apparatus connects the motion control card of drilling machine.
2. flip flop equipment according to claim 1, it is characterized in that: also comprise while boring by drilling machine, the enable signal output circuit of the signal controlling that the oscillating circuit that distribution capacity connects produces, whether described enable signal output circuit is connected to DSP control circuit, control DSP control circuit and work.
3. flip flop equipment according to claim 2, is characterized in that: also comprise the telecommunication circuit being connected with DSP control circuit, realize data and the command transfer of DSP control circuit and host computer.
4. flip flop equipment according to claim 1, it is characterized in that: described signal acquisition processing circuit comprises the voltage comparator of two series connection, the inverting input of its first voltage comparator connects described distribution capacity, the output of second voltage comparator connects a phase inverter, and inverter output connects DSP control circuit; The in-phase input end of first, second voltage comparator connects respectively the operating voltage of setting.
5. according to the flip flop equipment described in claim 1～4 any one, it is characterized in that: being also included as described each circuit module provides the power circuit of operating voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320660196.8U CN203622081U (en) | 2013-10-25 | 2013-10-25 | Trigger device for circuit board drilling machine broken knife detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320660196.8U CN203622081U (en) | 2013-10-25 | 2013-10-25 | Trigger device for circuit board drilling machine broken knife detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203622081U true CN203622081U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320660196.8U Withdrawn - After Issue CN203622081U (en) | 2013-10-25 | 2013-10-25 | Trigger device for circuit board drilling machine broken knife detection |
Country Status (1)
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| CN (1) | CN203622081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522124A (en) * | 2013-10-25 | 2014-01-22 | 惠州市大亚湾天马电子机械有限公司 | Trigger device for knife breakage detection of printed circuit board drilling machine and triggering method thereof |
-
2013
- 2013-10-25 CN CN201320660196.8U patent/CN203622081U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522124A (en) * | 2013-10-25 | 2014-01-22 | 惠州市大亚湾天马电子机械有限公司 | Trigger device for knife breakage detection of printed circuit board drilling machine and triggering method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20171103 |
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| AV01 | Patent right actively abandoned |