CN208556857U - Milling machine anti-collision protection device - Google Patents
Milling machine anti-collision protection device Download PDFInfo
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- CN208556857U CN208556857U CN201820766489.7U CN201820766489U CN208556857U CN 208556857 U CN208556857 U CN 208556857U CN 201820766489 U CN201820766489 U CN 201820766489U CN 208556857 U CN208556857 U CN 208556857U
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Abstract
The utility model discloses a kind of milling machine anti-collision protection devices comprising supporting element, cutter, fixation member, protective switch, trigger member, motor and driver, the supporting element are used to support workpiece to be processed；The Cutting tool installation manner is in the fixation member, for processing the workpiece；The protective switch setting is electrically connected on the supporting element, and with the driver；The trigger member is connected with the fixation member, and the motor and the fixation member are sequentially connected；The driver is electrically connected with the motor, for driving the motor.The utility model has the advantages that structure is simple, at low cost and long service life.
Description
Technical field
The utility model relates to CNC milling machine technical field more particularly to a kind of milling machine anti-collision protection devices.
Background technique
Milling machine is a kind of widely used lathe, and plane, groove can be processed on milling machine, divides tooth part, spiral shape table
Face and various curved surfaces.In addition, milling machine can also be used in revolving body surface, interior hole machined and carry out cutting off work etc..Milling machine is in work
When making, for workpiece dress on the table or on the attachmentes such as dividing head, cutter rotates to be main motion, is aided with the feeding of workbench or milling head
Movement, workpiece can be obtained required finished surface.Existing milling machine when in use, is examined by milling machine anti-collision protection device
It surveys, to obtain the operating status of milling machine, to judge whether milling machine is abnormal.However, structure is complicated for existing control module, cost
Height, service life are shorter.
Utility model content
The technical issues of the utility model solves is to provide that a kind of structure is simple, at low cost and milling machine with long service life
Anti-collision protection device.
The utility model discloses a kind of milling machine anti-collision protection device, including supporting element, cutter, fixation member, protection are opened
Pass, trigger member, motor and driver, the supporting element are used to support workpiece to be processed；The Cutting tool installation manner is in the fixation
On component, for processing the workpiece；The protective switch setting is electrically connected on the supporting element, and with the driver；
The trigger member is connected with the fixation member, and the motor and the fixation member are sequentially connected；The driver with it is described
Motor electrical connection, for driving the motor；The milling machine anti-collision protection device includes first state and the second state, first
When state, the trigger member and the protective switch interval are arranged；In the second state, the trigger member triggering protection is opened
It closes, makes the protective switch that signal will be protected to be sent to the driver, the driver controls institute according to the protection signal
It states motor to stop working, makes the cutter stop motion.
Further, the driver include the first driving circuit, first driving circuit include first switch circuit,
Second switch circuit, third switching circuit and delay output circuit, the first switch circuit and delay output circuit electricity
Connection, for stop signal to be sent to the delay output circuit；The second switch circuit and the first switch circuit
It is connected, is opened or closed for controlling the first switch circuit；The third switching circuit and the first switch circuit and
The protective switch electrical connection, opens or closes for controlling the first switch circuit according to the protection signal；It is described to prolong
When output circuit for sending driving signal to the motor.
Further, the first switch circuit include the first field-effect tube, first resistor and second resistance, described first
For being electrically connected to a power source, the drain electrode of first field-effect tube is electrically connected the source electrode of field-effect tube with the delay output circuit
It connects, the grid of first field-effect tube is electrically connected with the first end of the second resistance；The first end of the first resistor with
The source electrode of first field-effect tube is electrically connected, and the second end of the first resistor and the grid of first field-effect tube are electrically connected
It connects；The second end of the second resistance is electrically connected with the second switch circuit and the third switching circuit.
Further, the second switch circuit includes first capacitor, the first triode, 3rd resistor and the 4th resistance,
The first end of the first capacitor is electrically connected with the source electrode of first field-effect tube, the second end of the first capacitor with it is described
The first end of 3rd resistor is connected, and the second end of the 3rd resistor is connected with the base stage of first triode；Described first
The collector of triode is connected with the second end of the second resistance, the emitter ground connection of first triode；Described 4th
The first end of resistance is connected with the base stage of first triode, the second end ground connection of the 4th resistance.
Further, the third switching circuit includes the second triode, the 5th resistance and the 6th resistance, the 5th electricity
The first end of resistance is electrically connected with the protective switch, the second end and the base stage phase of second triode of the 5th resistance
Even；The collector of second triode is connected with the second end of the second resistance, and the emitter of second triode connects
The first end on ground, the 6th resistance is connected with the base stage of second triode, the second end ground connection of the 6th resistance.
Further, the delay output circuit includes the 4th switching circuit, the 5th switching circuit and delay control circuit；
4th switching circuit is electrically connected with the 5th switching circuit, and for being electrically connected with the power supply and the motor, with
The motor is driven according to the open signal of the 5th switching circuit input；5th switching circuit and the delays time to control
Circuit electrical connection, opens or closes for controlling the 4th switching circuit；The delay control circuit and the signal receive
Circuit electrical connection drives the 5th switching circuit for the preset time that is delayed after receiving the stop signal again.
Further, the 4th switching circuit include the second field-effect tube, the 7th resistance and the 8th resistance, described second
The source electrode of field-effect tube be used for the power electric connection, the drain electrode of second field-effect tube with the motor for being electrically connected
Connect, the grid of second field-effect tube is electrically connected with the first end of the 8th resistance, the second end of the 8th resistance with
The 5th switching circuit electrical connection, the first end of the 7th resistance are electrically connected with the source electrode of second field-effect tube, institute
The second end for stating the 7th resistance is electrically connected with the grid of second field-effect tube.
Further, the 5th switching circuit includes third transistor, the 9th resistance and the tenth resistance, and the described 3rd 3
The emitter of pole pipe is grounded, and the collector of the third transistor is electrically connected with the 8th resistance, the third transistor
Base stage is connected with the first end of the 9th resistance, and the second end of the 9th resistance is electrically connected with the signal receiving circuit,
The first end of tenth resistance is connected with the base stage of the third transistor, the second end ground connection of the tenth resistance.
Further, the delay control circuit includes the second capacitor, the first end of second capacitor and the signal
Receive circuit electrical connection, the second end ground connection of second capacitor.
The milling machine anti-collision protection device of the utility model has the following beneficial effects: due to the milling machine Anti-bumping protection
Device includes first state and the second state, and in first state, the trigger member and the protective switch interval are arranged；?
When two-state, the trigger member triggers the protective switch, makes the protective switch that signal will be protected to be sent to the driver,
The driver controls the motor according to the protection signal and stops working, and makes the cutter stop motion, i.e., different in transmission
Often, when the cutter is passed through or contacted across the workpiece and supporting element, the driver, which just controls the cutter, to be stopped
Movement, without being detected by complicated abnormal detection mechanism, thus, structure is simple, at low cost and long service life.
Detailed description of the invention
Fig. 1 is a kind of functional block diagram of the part-structure of embodiment of the utility model milling machine anti-collision protection device.
Fig. 2 is a kind of structural schematic diagram of the part-structure of embodiment of the utility model milling machine anti-collision protection device.
Fig. 3 is the circuit diagram of the first driving circuit of the driver of the utility model milling machine anti-collision protection device.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.It should be noted that if do not conflicted,
Each feature in the utility model embodiment and embodiment can be combined with each other, the protection scope of the utility model it
It is interior.
It please refers to Fig.1 to Fig.3, the utility model discloses a kind of milling machine anti-collision protection devices comprising supporting element 1, knife
Tool 2, fixation member 3, protective switch 6, trigger member 7, motor 8, driver 9 and controller 10, the supporting element 1 be used to support to
The workpiece 4 of processing.In practice, the supporting element 1 can be the vacuum cover board etc. of CNC milling machine, and structure is not made herein
It is specific to limit, as long as the workpiece 4 can be supported.The cutter 2 is mounted in the fixation member 3, for processing
State workpiece 4.As long as shape and structure are herein it is understood that the fixation member 3 can install the cutter 2
It is not specifically limited.The setting of protective switch 6 is electrically connected on the supporting element 1, and with the driver 9.The triggering
Part 7 is connected with the fixation member 3, can move up and down with the fixation member.The motor 8 and the fixed part
Part 3 is sequentially connected, for driving the fixation member 3 and the cutter 2 to move.The driver 9 is electrically connected with the motor 8
It connects, for driving the motor.The controller 10 is electrically connected with the driver 9, drives institute for controlling the driver 9
State motor.
The milling machine anti-collision protection device includes first state and the second state, in first state, the trigger member 7 with
The interval of protective switch 6 setting, i.e., the described trigger member 7 are spaced pre-determined distance with the protective switch 6, wherein described default
Distance can be configured as needed, be not specifically limited herein；In the second state, the trigger member 7 triggers the protection
Switch 6 makes the protective switch 6 that signal will be protected to be sent to the driver 9, and the driver 9 is according to the protection signal
It controls the motor 8 to stop working, makes the cutter stop motion.Wherein, the protection signal can be high level signal, low
The type of level signal or pulse signal etc., the protection signal is not specifically limited herein, as long as can be by the drive
Dynamic device 9 identifies.In addition, when the trigger member 7 triggers the protective switch 6, it can be with the switch contact, it can also not
Contact, is not specifically limited herein.That is, when the controller 10 controls the motor 8 work, if not because of user's operation
When or controller 10 in program be operating abnormally, when the trigger member 7 being caused to trigger the protective switch 6, then the driving
Device 9 controls the motor 8 and stops working, and makes 2 stop motion of cutter.
In the present embodiment, the protective switch 6 is optoelectronic switch, and the trigger member is baffle, in the second state, institute
It states trigger member 7 to be inserted into the protective switch 6, has blocked the optical path of the switch, to realize the triggering protective switch 6.
The optoelectronic switch is the prior art, and details are not described herein for structure.In another embodiment, described in the second state
Trigger member 7 presses on the button of the protective switch 6, to realize the triggering protective switch 6.It is understood that institute
It states switch and is also possible to inductive switch, the trigger member is magnetic part etc..Therefore, the type of the switch and the trigger member
Type is not specifically limited herein.
Preferably, the driver 9 includes the first driving circuit and the second driving circuit, and first driving circuit includes
First switch circuit K1, second switch circuit K2, third switching circuit K3 and delay output circuit, the first switch circuit K1
It is electrically connected with the delay output circuit and emergency switch K, the stop signal issued when for opening emergency switch K is sent to
The delay output circuit.The second switch circuit K2 is connected with the first switch circuit K1, for being inputted according to power supply 5
Signal control the first switch circuit K1 and open or close.The third switching circuit K3 and first switch circuit K1
It is connected, is opened or closed for controlling the first switch circuit K1 according to the protection signal；The delay output circuit is used
In transmission driving signal to the motor.Therefore, in emergency, it can directly pass through and manually press the emergency switch K, from
And the motor 8 is made to stop working, thus safety can be improved.Second driving circuit and the controller 10 and the electricity
Machine 8 is electrically connected, for driving the motor 8 to work under the control of the controller 10, since second driving circuit is
The prior art, details are not described herein.
In the present embodiment, the first switch circuit K1, second switch circuit K2 and third switching circuit K3 are crystalline substance
Body pipe switching circuit.Cooperated by the second switch circuit K2 and third switching circuit K3 and first switch circuit K1,
Just the open signal to the power supply 5 input respectively and the stop signal that sends and receivees for protecting signal are realized, thus, electricity
Line structure is simple, at low cost.
Preferably, the first switch circuit K1 includes the first field-effect tube Q1, first resistor R1 and second resistance R2, institute
The source electrode of the first field-effect tube Q1 is stated for being electrically connected with the power supply 5, the drain electrode of the first field-effect tube Q1 is prolonged with described
When output circuit be electrically connected, the grid of the first field-effect tube Q1 is electrically connected with the first end of the second resistance R2；It is described
The first end of first resistor R1 is electrically connected with the source electrode of the first field-effect tube Q1, the second end of the first resistor R1 and institute
State the grid electrical connection of the first field-effect tube Q1；The second end of the second resistance R2 and the second switch circuit K2 and described
Third switching circuit K3 electrical connection.Since fet switch speed is fast, pipe consumes low, high reliablity, without double pole triode
Current tail phenomenon therefore the stop signal is sent by the first field-effect tube Q1, further reduced power consumption.
In addition, can preferably be protected to the first field-effect tube Q1 by the way that the second resistance R2 is arranged.
Preferably, the second switch circuit K2 includes first capacitor C1, the first triode Q2,3rd resistor R3 and the 4th
Resistance R4, the first end of the first capacitor C1 are electrically connected with the source electrode of the first field-effect tube Q1, the first capacitor C1
Second end be connected with the first end of the 3rd resistor R3, the second end of the 3rd resistor R3 and the first triode Q2
Base stage be connected；The collector of the first triode Q2 is connected with the second end of the second resistance R2, the one or three pole
The emitter of pipe Q2 is grounded；The first end of the 4th resistance R4 is connected with the base stage of the first triode Q2, and the described 4th
The second end of resistance R4 is grounded.
Preferably, the third switching circuit K3 includes the second triode Q3, the 5th resistance R5 and the 6th resistance R6, described
The first end of 5th resistance R5 is electrically connected with the protective switch 6, the second end of the 5th resistance R5 and the two or three pole
The base stage of pipe Q3 is connected；The collector of the second triode Q3 is connected with the second end of the second resistance R2, and described second
The emitter of triode Q3 is grounded, and the first end of the 6th resistance R6 is connected with the base stage of the second triode Q3, described
The second end of 6th resistance R6 is grounded.By using the first triode Q2 and the second triode Q3 as switch portion
Part, thus can preferably reduce manufacturing cost.
Preferably, the delay output circuit includes the 4th switching circuit K4, the 5th switching circuit K5 and delays time to control electricity
Road K6；The 4th switching circuit K4 is electrically connected with the 5th switching circuit K5, and is used for and the power supply 5 and the motor
8 electrical connections drive the controller 105 with the open signal inputted according to the 5th switching circuit K5；5th switch
Circuit K5 is electrically connected with the delay control circuit K6, is opened or closed for controlling the 4th switching circuit K4；It is described to prolong
When control circuit K6 be electrically connected with the signal receiving circuit 1, for the preset time that is delayed after receiving the stop signal
It is then turned on the 5th switching circuit K5.Pass through the delay control circuit K6 and the 4th switching circuit K4 and the described 5th
Switching circuit K5 cooperation, can preferably filtering interference signals.
Preferably, the 4th switching circuit K4 includes the second field-effect tube Q4, the 7th resistance R7 and the 8th resistance R8, institute
The source electrode of the second field-effect tube Q4 is stated for being electrically connected with the power supply 5, the drain electrode of the second field-effect tube Q4 for institute
The electrical connection of controller 10 is stated, the grid of the second field-effect tube Q4 is electrically connected with the first end of the 8th resistance R8, described
The second end of 8th resistance R8 is electrically connected with the 5th switching circuit K5, the first end and described second of the 7th resistance R7
The source electrode of field-effect tube Q4 is electrically connected, and the second end of the 7th resistance R7 and the grid of the second field-effect tube Q4 are electrically connected
It connects.Since fet switch speed is fast, pipe consumes low, high reliablity, not the current tail phenomenon of double pole triode, because
This, the 4th switching circuit K4 pipe consumes low, high reliablity.
Preferably, the 5th switching circuit K5 includes third transistor Q5, the 9th resistance R9 and the tenth resistance R10, institute
The emitter ground connection of third transistor Q5 is stated, the collector of the third transistor Q5 is electrically connected with the 8th resistance R8, institute
The base stage for stating third transistor Q5 is connected with the first end of the 9th resistance R9, the second end of the 9th resistance R9 with it is described
Signal receiving circuit 1 is electrically connected, and the first end of the tenth resistance R10 is connected with the base stage of the third transistor Q5, described
The second end of tenth resistance R10 is grounded.The delay control circuit K6 includes the second capacitor C2, and the first of the second capacitor C2
End is electrically connected with the signal receiving circuit 1, the second end ground connection of the second capacitor C2.By by the third transistor Q5
As switch block, thus have the advantages that structure is simple and at low cost.In addition, the delay control circuit K6 is only by the second electricity
Hold C2 composition, not only preferably reduces costs, preferably filtering interference signals, and the more convenient setting of extension of time, because
And have the advantages that convenient for manufacture and it is easy to promote and utilize.
The working principle of the utility model are as follows: the emergency switch K, the first triode Q2 are opened in emergency
Conducting, so that the first field-effect tube Q1 is connected, then the current potential of the first end of the second capacitor C2 becomes high level, promotes described
Third transistor Q5 conducting, so that the second field-effect tube Q4 is connected, so that stop signal is sent to the motor 8, from
And the motor is made to stop working, 2 stop motion of cutter.
When being abnormal, the cutter 2 is institute when passing through workpiece 4 or contacting across workpiece 4 and the supporting element 1
It states protective switch 6 and high level signal is sent to the second triode Q3, promote the second triode Q3 to be connected, so that institute
The first field-effect tube Q1 conducting is stated, then the current potential of the first end of the second capacitor C2 becomes high level, promotes the described 3rd 3
Pole pipe Q5 conducting, so that the second field-effect tube Q4 is connected, so that protection signal is sent to the motor 8, to make institute
It states motor 8 to stop working, so that 2 stop motion of the cutter.
In conclusion in the milling machine anti-collision protection device of the utility model, due to the milling machine anti-collision protection device
Including first state and the second state, the trigger member 7 triggers the protective switch 6, makes the protective switch 6 that will protect signal
It is sent to the driver 9, the driver 9 controls the motor 8 according to the protection signal and stops working, and makes the cutter
2 stop motions are sending exception, when the cutter 2 is passed through or is contacted across the workpiece 4 with supporting element 1, the drive
Dynamic device 9 just controls the motor 8 and stops working, and makes 2 stop motion of cutter, without by complicated abnormal detection mechanism into
Row detection, thus, structure is simple, at low cost and long service life.
Milling machine anti-collision protection device provided by the utility model is described in detail above, tool used herein
Body example is expounded the principles of the present invention and embodiment, and the above embodiments are only used to help understand
The method and its core concept of the utility model；At the same time, for those skilled in the art, the think of according to the utility model
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is only that this is practical new
The embodiment of type, therefore it does not limit the scope of the patent of the utility model, all to utilize the utility model specification and attached drawing
Equivalent structure or equivalent flow shift made by content is applied directly or indirectly in other relevant technical fields, similarly
Including in the scope of patent protection of the utility model.It should not be construed as a limitation of the present invention.
Claims (9)
1. a kind of milling machine anti-collision protection device, it is characterised in that: including supporting element, cutter, fixation member, protective switch, triggering
Part, motor and driver, the supporting element are used to support workpiece to be processed；The Cutting tool installation manner in the fixation member,
For processing the workpiece；The protective switch setting is electrically connected on the supporting element, and with the driver；The triggering
Part is connected with the fixation member, and the motor and the fixation member are sequentially connected；The driver is electrically connected with the motor
It connects, for driving the motor；The milling machine anti-collision protection device includes first state and the second state, in first state,
The trigger member and the protective switch interval are arranged；In the second state, the trigger member triggers the protective switch, makes institute
Stating protective switch will protect signal to be sent to the driver, and the driver controls the motor according to the protection signal and stops
It only works, makes the cutter stop motion.
2. milling machine anti-collision protection device according to claim 1, it is characterised in that: the driver includes the first driving electricity
Road, first driving circuit include first switch circuit, second switch circuit, third switching circuit and delay output circuit,
The first switch circuit is electrically connected with the delay output circuit, exports electricity for stop signal to be sent to the delay
Road；The second switch circuit is connected with the first switch circuit, opens or closes for controlling the first switch circuit；
The third switching circuit is electrically connected with the first switch circuit and the protective switch, for according to the protection signal control
The first switch circuit is made to open or close；The delay output circuit is for sending driving signal to the motor.
3. milling machine anti-collision protection device according to claim 2, it is characterised in that: the first switch circuit includes first
Field-effect tube, first resistor and second resistance, the source electrode of first field-effect tube is for being electrically connected to a power source, and described first
The drain electrode of effect pipe is electrically connected with the delay output circuit, and the of the grid of first field-effect tube and the second resistance
One end electrical connection；The first end of the first resistor is electrically connected with the source electrode of first field-effect tube, the first resistor
Second end is electrically connected with the grid of first field-effect tube；The second end of the second resistance and the second switch circuit and
The third switching circuit electrical connection.
4. milling machine anti-collision protection device according to claim 3, it is characterised in that: the second switch circuit includes first
Capacitor, the first triode, 3rd resistor and the 4th resistance, the source of the first end of the first capacitor and first field-effect tube
Pole electrical connection, the second end of the first capacitor are connected with the first end of the 3rd resistor, the second end of the 3rd resistor
It is connected with the base stage of first triode；The collector of first triode is connected with the second end of the second resistance,
The emitter of first triode is grounded；The first end of 4th resistance is connected with the base stage of first triode, institute
State the second end ground connection of the 4th resistance.
5. milling machine anti-collision protection device according to claim 3 or 4, it is characterised in that: the third switching circuit includes
The first end of second triode, the 5th resistance and the 6th resistance, the 5th resistance is electrically connected with the protective switch, and described
The second end of five resistance is connected with the base stage of second triode；The collector of second triode and the second resistance
Second end be connected, the emitter of second triode ground connection, the first end of the 6th resistance and second triode
Base stage be connected, the second end of the 6th resistance ground connection.
6. milling machine anti-collision protection device according to claim 3 or 4, it is characterised in that: the delay output circuit includes
4th switching circuit, the 5th switching circuit and delay control circuit；4th switching circuit and the 5th switching circuit electricity
Connection, and for being electrically connected with the power supply and the motor, it is driven with the open signal inputted according to the 5th switching circuit
Move the motor；5th switching circuit is electrically connected with the delay control circuit, for controlling the 4th switching circuit
It opens or closes；The delay control circuit is electrically connected with the signal receiving circuit, for receiving the stop signal
Delay preset time drives the 5th switching circuit again afterwards.
7. milling machine anti-collision protection device according to claim 6, it is characterised in that: the 4th switching circuit includes second
Field-effect tube, the 7th resistance and the 8th resistance, the source electrode of second field-effect tube be used for the power electric connection, described the
The drain electrode of two field-effect tube with the motor for being electrically connected, and the of the grid of second field-effect tube and the 8th resistance
One end electrical connection, the second end of the 8th resistance are electrically connected with the 5th switching circuit, the first end of the 7th resistance
It is electrically connected with the source electrode of second field-effect tube, the second end of the 7th resistance and the grid electricity of second field-effect tube
Connection.
8. milling machine anti-collision protection device according to claim 7, it is characterised in that: the 5th switching circuit includes third
Triode, the 9th resistance and the tenth resistance, the third transistor emitter ground connection, the collector of the third transistor with
The 8th resistance electrical connection, the base stage of the third transistor are connected with the first end of the 9th resistance, the 9th electricity
The second end of resistance is electrically connected with the signal receiving circuit, the first end of the tenth resistance and the base stage of the third transistor
It is connected, the second end ground connection of the tenth resistance.
9. milling machine anti-collision protection device according to claim 8, it is characterised in that: the delay control circuit includes second
The first end of capacitor, second capacitor is electrically connected with the signal receiving circuit, the second end ground connection of second capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766489.7U CN208556857U (en) | 2018-05-22 | 2018-05-22 | Milling machine anti-collision protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766489.7U CN208556857U (en) | 2018-05-22 | 2018-05-22 | Milling machine anti-collision protection device |
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| CN208556857U true CN208556857U (en) | 2019-03-01 |
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| CN201820766489.7U Active CN208556857U (en) | 2018-05-22 | 2018-05-22 | Milling machine anti-collision protection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024964A (en) * | 2020-08-27 | 2020-12-04 | 北京俊南庆鑫物业管理有限公司 | Anticollision sword equipment of numerically controlled fraise machine |
-
2018
- 2018-05-22 CN CN201820766489.7U patent/CN208556857U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024964A (en) * | 2020-08-27 | 2020-12-04 | 北京俊南庆鑫物业管理有限公司 | Anticollision sword equipment of numerically controlled fraise machine |
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