CN209552450U - A kind of spray head lifting position control device - Google Patents

A kind of spray head lifting position control device Download PDF

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Publication number
CN209552450U
CN209552450U CN201821742117.7U CN201821742117U CN209552450U CN 209552450 U CN209552450 U CN 209552450U CN 201821742117 U CN201821742117 U CN 201821742117U CN 209552450 U CN209552450 U CN 209552450U
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mcu
spray head
fixed pulley
amplifier
leading truck
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CN201821742117.7U
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付劲松
张练军
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Yueyang Pola Fabritex Srl
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Yueyang Pola Fabritex Srl
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Abstract

The utility model discloses a kind of spray heads to go up and down position control device, including MCU, displacement detector and display screen；Displacement detector is connected with MCU with display screen；The displacement detector is 2 sets, is set up separately in the two sides of spray head elevating mechanism；Spray head elevating mechanism includes lifting leading truck (1), ball screw (2) and servo motor (6)；Displacement detector includes bracing wire (11), fixed pulley (12) and coding disk (13)；Fixed pulley is mounted on the top of lifting leading truck, and the lower end of bracing wire is fixed on mounting rack；The upper end of bracing wire is wrapped on fixed pulley；Keep the bracing wire vertical direction between fixed pulley and mounting rack；The shaft of fixed pulley is equipped with coding disk, and the pulse output end of coding disk is connected with the input signal end of MCU.The spray head, which goes up and down position control device, has high precision displacement detection module, and positioning accuracy is high, easy to implement.

Description

A kind of spray head lifting position control device
Technical field
In particular to a kind of spray head of the utility model goes up and down position control device.
Background technique
Existing spray head lifting positioning, maximum problem is that positioning accuracy is not high, in addition, high-precision fixed to realize Position, even positioning accuracy of lifting whole-course when will print, the structure of stroke big in this way as the positioning accuracy of machine tool, It is difficult to realize, difficulty of processing with machine tool processing, assembly difficulty, the cost of frock clamp is all the geometry of machine tool Multiple, therefore, therefore, it is necessary to design a kind of spray head lifting position control device.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of spray heads to go up and down position control device, spray head lifting Position control device has high precision displacement detection module, and positioning accuracy is high, easy to implement.
The technical solution of utility model is as follows:
A kind of spray head lifting position control device, including MCU, displacement detector and display screen；Displacement detector with Display screen is connected with MCU；
The displacement detector is 2 sets, is set up separately in the two sides of spray head elevating mechanism；
Spray head elevating mechanism includes lifting leading truck (1), ball screw (2) and servo motor (6)；Servo motor rotation When,
Mounting rack and spray head lifting can be driven by the transmission of ball screw；Spray head is mounted on mounting rack；
Displacement detector includes bracing wire (11), fixed pulley (12) and coding disk (13)；
Fixed pulley is mounted on the top of lifting leading truck,
The lower end of bracing wire is fixed on mounting rack；The upper end of bracing wire is wrapped on fixed pulley；Keep fixed pulley and mounting rack Between bracing wire vertical direction；
The shaft of fixed pulley is equipped with coding disk, and the pulse output end of coding disk is connected with the input signal end of MCU.
Display screen is equipped with the light adjusting circuit for adjusting backlight；It goes up and down leading truck and is equipped with light intensity sensor Rx；Light intensity Sensor is connected by amplifier with MCU；
Light adjusting circuit includes LED light string, triode and the A/D converter being built in MCU；Triode is three pole of NPN type Pipe；
Light intensity sensor Rx and first resistor R1 concatenates to form partial pressure branch, and partial pressure branch one terminates positive pole Vcc, point Press the other end ground connection of branch；The tie point of light intensity sensor Rx and first resistor R1 connect the input terminal of amplifier；Amplifier The input port of the A/D converter of output termination MCU；
LED light string includes the LED light of multiple concatenations；The anode of LED light string meets positive pole Vcc；The cathode of LED light string connects The pole E of the pole C of triode, triode is grounded through second resistance R2；The output end for meeting MCU of the pole B of triode.Positive pole Vcc is 5V, and A/D converter is 8 Bits Serial output type converters.
Amplifier is the amplification factor adjustable amplifying circuit based on variable connector and operation amplifier device.
MCU drives servo motor by motor-drive circuit.
It goes up and down leading truck and ball screw is 2,2 ball screws are separately mounted on 2 lifting leading trucks；It is described The both ends of the installation frame for being equipped with spray head be sleeved on 2 ball screws；Ball screw is driven by servo motor (6)；It watches When taking motor rotation, installation frame and spray head lifting can be driven by the transmission of ball screw；
Installation frame is equipped with the obliquity sensor for detecting installation frame inclination angle；
2 ball screws are driven by 2 independent servo motors respectively；
Obliquity sensor is connected with MCU；Servo motor is controlled by MCU.
Installation frame is connect by resilient coupling (5) with lifting leading truck.Resilient coupling is as installation frame and rises Buffering between leading truck drops.
Installation frame or resilient coupling are equipped with multiple upper and lower position locating pieces (3), and upper and lower position locating piece is installation The decline of frame provides the limit of lower end.The positioning of installation frame, upper and lower position locating piece are realized by upper and lower position locating piece Precision determine the whole positioning accuracy of spray head.
Upper and lower position locating piece is 4, and resilient coupling is 2, and 2 upper bottoms are respectively provided on each resilient coupling Locating piece is set, is fixed with stylobate (specific stylobate corresponding with the upper and lower position locating piece in the bottom of lifting leading truck For cake type or circular platform type, upper and lower position locating piece is cylindrical component).
It goes up and down leading truck and is equipped with falling proof device.
Falling proof device is spring；The upper end of lifting leading truck is arranged in the upper end of spring, and the lower end of spring connects installation Frame.
Obliquity sensor is gyroscope.
Installation frame is equipped with multiple spray heads.It is preferred that 64 spray heads.
The effect of angle locating piece (4) is limited for installation frame, and installation frame can rotate, and angle locating piece can be with hand Dynamic its position of adjusting and angle, the precision of angle locating piece determine the precision of installation frame rotational angle.
The utility model has the advantages that
The spray head of the utility model goes up and down position control device, has the following characteristics that
(1) gradient is detected by angular transducer, ensures the inclination angle of installation frame in preset accuracy rating.
(2) installation frame is realized by resilient coupling and goes up and down the flexible connection of leading truck, avoided to spray head installing frame Frame damages.
(3) maximum one of the feature of the utility model is to realize determining for installation frame by upper and lower position locating piece Positioning when position, i.e. working condition.
(4) there is anti-falling mechanism；
Prevent installation frame from falling by spring mechanism, it is highly-safe.
(5) there is high-precision displacement detection module
Cooperated using fixed pulley and coding disk, can accurately detect displacement, and the amplification factor of amplifier is adjustable, spirit Activity is good.
(6) there is display screen, and display screen is equipped with Intelligent dimming circuit, (including displacement is shown convenient for status display It is shown with warning message).
In conclusion the spray head lifting position control device of the utility model is easy to implement, precision is high, and at low cost, knot Structure is compact.
Detailed description of the invention
Fig. 1 is the perspective view of spray head lift locating device；
Fig. 2 is the main view of spray head lift locating device；
Fig. 3 is the side view of spray head lift locating device.
Fig. 4 is control device block diagram；
Fig. 5 is light adjusting circuit schematic diagram；
Fig. 6 is amplifying circuit schematic diagram；
Fig. 7 is displacement detecting schematic diagram.
Label declaration: 1- goes up and down leading truck, 2- ball screw, the upper and lower position 3- locating piece, 4- angle locating piece, 5- elasticity Connector, 6- servo motor, 7- gyroscope, 8- installation frame, 9- spray head.
11- bracing wire, 12- fixed pulley, 13- coding disk.
Specific embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to practical new herein Type, which is done, more comprehensively, meticulously to be described, but the protection scope of the utility model is not limited to specific embodiment.
Unless otherwise defined, all technical terms used hereinafter are generally understood meaning phase with those skilled in the art Together.Technical term used herein is intended merely to the purpose of description specific embodiment, and being not intended to limitation, this is practical new The protection scope of type.
Embodiment 1:
Fig. 1-3, a kind of spray head lift locating device, including lifting leading truck 1, ball screw 2 and servo motor 6；
Spray head is mounted on installation frame；
It goes up and down leading truck and ball screw is 2,2 ball screws are separately mounted on 2 lifting leading trucks；It is described The both ends of the installation frame for being equipped with spray head be sleeved on 2 ball screws；Ball screw is driven by servo motor 6；Servo When motor rotates, installation frame and spray head lifting can be driven by the transmission of ball screw；
Installation frame is equipped with the obliquity sensor for detecting installation frame inclination angle；
2 ball screws are driven by 2 independent servo motors respectively；
Obliquity sensor is connected with MCU；Servo motor is controlled by MCU.
Installation frame is connect by resilient coupling 5 with lifting leading truck.Resilient coupling is as installation frame and lifting Buffering between leading truck.
Installation frame or resilient coupling are equipped with multiple upper and lower position locating pieces 3, and upper and lower position locating piece is installing frame The decline of frame provides the limit of lower end.The positioning of installation frame is realized by upper and lower position locating piece, upper and lower position locating piece Precision determines the whole positioning accuracy of spray head.
Upper and lower position locating piece is 4, and resilient coupling is 2, and 2 upper bottoms are respectively provided on each resilient coupling Locating piece is set, is fixed with stylobate (specific stylobate corresponding with the upper and lower position locating piece in the bottom of lifting leading truck For cake type or circular platform type, upper and lower position locating piece is cylindrical component).
It goes up and down leading truck and is equipped with falling proof device.
Falling proof device is spring；The upper end of lifting leading truck is arranged in the upper end of spring, and the lower end of spring connects installation Frame.
Obliquity sensor is gyroscope.
Installation frame is equipped with multiple spray heads.It is preferred that 64 spray heads.
A kind of printing equipment, the spray head lift locating device including installation frame and for driving installation frame；Installing frame Multiple spray heads are equipped in frame；
The spray head lift locating device is spray head lift locating device above-mentioned.
The spray head is 64.
In the present solution, coupling two ball-screw synchronously control spray head installation frame liters using each servo motor in both sides Drop, it is flexible between flexible connector, 4 angles of spray head installation frame and lifting leading truck between ball-screw and spray head frame Connector, it is print job position that spray head installation frame, which is preferably minimized, and spray head guarantees to determine by going up and down the locating piece at 4 angles of leading truck Position precision, after printing, spray head rises sealing again, and the tolerance of lifting structure is allowed by resilient coupling,
Advantage using this scheme is: printing only need spray head installation frame position when precision can, no Need the positioning accuracy of lifting process, if positioning accuracy when lifting whole-course will print, the structure of stroke big in this way and The positioning accuracy of machine tool is the same.It is difficulty of processing difficult to realize, assembly difficulty, frock clamp with machine tool processing Cost be all geometric multiple, so, this programme can significant save the cost, and in turn ensure positioning accuracy.In addition elastic construction Have a good fault-tolerance, the structure of this spline span, if it is rigid structure, if error lifting force unbalance, can deform or Structure is destroyed, and the safety of spray head is threatened, and resilient connection structure has allowed inclined presence by flexible deformation, guarantees structure safety, Through breaking test, 20 degree of guarantee structures safety can be tilted, by the top of spray head installation frame center installation when actual motion The gradient of the both direction of spiral shell instrument real-time monitoring spray head installation frame, any direction are tilted beyond 1 degree of shutdown that reports an error automatically, watch Take the lifting of motor synchronously control, an error, the phenomenon that report an error shutdown automatically, and guarantee is not in unilateral force unbalance production Raw, the limitation of servo motor torque increases if the inclination of spray head installation frame will cause unilateral servo motor torque, and system detection arrives Afterwards, report an error shutdown.The tilt angle information that two servo motors are fed back according to gyroscope passes through two differential real-time control liters The position of spray head installation frame when drop, guarantee will not be tilted beyond 1 degree.Gyroscope power-off or aged deterioration, system report an error lifting It does not work.
There is falling proof device on lifting leading truck, hauls spray head installation frame in lifting travel by spring and guide rod, it is real Gravity compensation when now going up and down reduces the stress abrasion of rolling lead screw, and mechanical structure prevents spray head installation frame from falling when failing, because This, it is highly-safe.
Such as Fig. 4 and 7, a kind of spray head lifting position control device, including MCU, displacement detector and display screen；Displacement inspection Device is surveyed to be connected with MCU with display screen；
The displacement detector is 2 sets, is set up separately in the two sides of spray head elevating mechanism；
Spray head elevating mechanism includes lifting leading truck 1, ball screw 2 and servo motor 6；When servo motor rotates, it can lead to The transmission for crossing ball screw drives mounting rack and spray head lifting；Spray head is mounted on mounting rack；
Displacement detector includes bracing wire 11, fixed pulley 12 and coding disk 13；
Fixed pulley is mounted on the top of lifting leading truck,
The lower end of bracing wire is fixed on mounting rack；The upper end of bracing wire is wrapped on fixed pulley；Keep fixed pulley and mounting rack Between bracing wire vertical direction；
The shaft of fixed pulley is equipped with coding disk, and the pulse output end of coding disk is connected with the input signal end of MCU.
Display screen is equipped with the light adjusting circuit for adjusting backlight；It goes up and down leading truck and is equipped with light intensity sensor Rx；Light intensity Sensor is connected by amplifier with MCU；
LED light string includes the LED light of multiple concatenations；The anode of LED light string meets positive pole Vcc；The cathode of LED light string connects The pole E of the pole C of triode, triode is grounded through second resistance R2；The output end for meeting MCU of the pole B of triode.Positive pole Vcc is 5V, and A/D converter is 8 Bits Serial output type converters.
Amplifier is the amplification factor adjustable amplifying circuit based on variable connector and operation amplifier device.
MCU drives servo motor by motor-drive circuit.
Such as Fig. 5, display screen is connected with MCU, and light adjusting circuit includes LED light string, triode, light intensity sensor Rx and is built in A/D converter in MCU；Triode is NPN type triode；
Light intensity sensor Rx and first resistor R1 concatenates to form partial pressure branch, and partial pressure branch one terminates positive pole Vcc, point Press the other end ground connection of branch；The tie point of light intensity sensor Rx and first resistor R1 connect the input terminal of amplifier；Amplifier The input port of the A/D converter of output termination MCU；
LED light string includes the LED light of multiple concatenations；The anode of LED light string meets positive pole Vcc；The cathode of LED light string connects The pole E of the pole C of triode, triode is grounded through second resistance R2；The output end for meeting MCU of the pole B of triode.Positive pole Vcc is 5V, and A/D converter is 8 Bits Serial output type converters.
Such as Fig. 6, light intensity sensor is connected by adjustable amplification factor amplifier with the end ADC of MCU；
The amplifier of adjustable amplification factor includes operational amplifier U1 and variable connector U2；Variable connector U2 selects for four Select device；
The output end Vin of light intensity sensor connects the inverting input terminal of operational amplifier U1 through resistance R0；Operational amplifier U1 Non-inverting input terminal be grounded through resistance R06, the noninverting input of operational amplifier U1 also connects four through 4 resistance R01-R04 respectively Select 4 input channels of a selector, four select the output channel of a selector to meet the output end vo ut, Vout of operational amplifier U1 Connect the end ADC of MCU；
2 output ports of MCU connect four respectively and the channel of a selector are selected to select end A and B；
Operational amplifier U1 uses LM393 device.
The calculation formula of Vout and Vin:
Vout=Vin* (Rx+R0)/R0；Wherein, Rx=R01, R02, R03 or R04；Selection is determined based on gated end AB Which resistance；And R01, R02, R03 and R04 are different；Preferred R04=5*R03=25*R02=100*R01；R01= 5*R0. realizes range and precision switching in which can be convenient.

Claims (1)

1. a kind of spray head goes up and down position control device, which is characterized in that including MCU, displacement detector and display screen；Displacement inspection Device is surveyed to be connected with MCU with display screen；
The displacement detector is 2 sets, is set up separately in the two sides of spray head elevating mechanism；
Spray head elevating mechanism includes lifting leading truck (1), ball screw (2) and servo motor (6)；
Displacement detector includes bracing wire (11), fixed pulley (12) and coding disk (13)；
Fixed pulley is mounted on the top of lifting leading truck,
The lower end of bracing wire is fixed on mounting rack；The upper end of bracing wire is wrapped on fixed pulley；It keeps between fixed pulley and mounting rack Bracing wire vertical direction；
The shaft of fixed pulley is equipped with coding disk, and the pulse output end of coding disk is connected with the input signal end of MCU；
Display screen is equipped with the light adjusting circuit for adjusting backlight；It goes up and down leading truck and is equipped with light intensity sensor Rx；Light intensity sensing Device is connected by amplifier with MCU；
Light adjusting circuit includes LED light string, triode and the A/D converter being built in MCU；Triode is NPN type triode；
Light intensity sensor Rx and first resistor R1 concatenates to form partial pressure branch, and partial pressure branch one terminates positive pole Vcc, partial pressure branch The other end on road is grounded；The tie point of light intensity sensor Rx and first resistor R1 connect the input terminal of amplifier；The output of amplifier Terminate the input port of the A/D converter of MCU；
LED light string includes the LED light of multiple concatenations；The anode of LED light string meets positive pole Vcc；The cathode of LED light string connects three poles The pole E of the pole C of pipe, triode is grounded through second resistance R2；The output end for meeting MCU of the pole B of triode, positive pole Vcc are 5V, A/D converter are 8 Bits Serial output type converters；
Amplifier is the amplification factor adjustable amplifying circuit based on variable connector and operation amplifier device；
Mounting rack is connect by resilient coupling (5) with lifting leading truck, and resilient coupling is as mounting rack and lifting leading truck Between buffering；
Mounting rack or resilient coupling are equipped with multiple upper and lower position locating pieces (3), and upper and lower position locating piece is under mounting rack Drop provides the limit of lower end；
Light intensity sensor is connected by adjustable amplification factor amplifier with the end ADC of MCU；
Amplification factor adjustable amplifying circuit includes operational amplifier U1 and variable connector U2；Variable connector U2 selects a selection for four Device；
The output end Vin of light intensity sensor connects the inverting input terminal of operational amplifier U1 through resistance R0；Operational amplifier U1's is same Phase input terminal is grounded through resistance R06, and the noninverting input of operational amplifier U1 also connects four through 4 resistance R01-R04 respectively and selects one 4 input channels of selector, four select the output channel of a selector to meet the output end vo ut of operational amplifier U1, and Vout connects The end ADC of MCU；
2 output ports of MCU connect four respectively and the channel of a selector are selected to select end A and B；
Operational amplifier U1 uses LM393 device；
MCU drives servo motor by motor-drive circuit.
CN201821742117.7U 2018-10-26 2018-10-26 A kind of spray head lifting position control device Active CN209552450U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821742117.7U CN209552450U (en) 2018-10-26 2018-10-26 A kind of spray head lifting position control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821742117.7U CN209552450U (en) 2018-10-26 2018-10-26 A kind of spray head lifting position control device

Publications (1)

Publication Number Publication Date
CN209552450U true CN209552450U (en) 2019-10-29

Family

ID=68299073

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821742117.7U Active CN209552450U (en) 2018-10-26 2018-10-26 A kind of spray head lifting position control device

Country Status (1)

Country Link
CN (1) CN209552450U (en)

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