CN110202786A - A kind of self-level(l)ing device and leveling method of fusion sediment increasing material manufacturing - Google Patents
A kind of self-level(l)ing device and leveling method of fusion sediment increasing material manufacturing Download PDFInfo
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- CN110202786A CN110202786A CN201910510643.3A CN201910510643A CN110202786A CN 110202786 A CN110202786 A CN 110202786A CN 201910510643 A CN201910510643 A CN 201910510643A CN 110202786 A CN110202786 A CN 110202786A
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- effective distance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/245—Platforms or substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
Abstract
A kind of self-level(l)ing device and leveling method of fusion sediment increasing material manufacturing, belong to material increasing field.The problems such as print platform that the present invention solves existing 3D printer needs manually to level, and is unable to reach accurate and low efficiency.The present invention carries out spray head to the ranging between print platform first with laser range sensor, and the distance for surveying measured four angles is fed back into controller and is calculated, it seeks four location points and obtains difference between effective distance and target value, the rotary speed direction of control motor and the angle of required rotation are calculated according to the screw pitch of the difference and lead screw.Then controller control stepper motor rotates the lead screw of four angles position installation, realizes and moves up and down with nut cooperation, and each point and spray head reached on print platform forms a horizontality.The present invention realizes the automatic leveling of print platform, effectively raises printing precision and printing effect, realizes the intelligence, automation, foolproof operation of fusion sediment increasing material manufacturing device.
Description
Technical field
The present invention relates to the self-level(l)ing devices and leveling method of a kind of fusion sediment increasing material manufacturing, belong to increasing material manufacturing neck
Domain.
Background technique
Fusion sediment increasing material manufacturing is one of the field that material increasing field technology develops relative maturity, but now on the market
The machine of sale, mostly shortage self-level(l)ing device, the gap between nozzle and printing plate are manually adjusted by operator, this
It requires one side operator to have certain specialized capability, while also causing different operation personnel operating result difference, from
And the gap deviation in the gap and four angles position adjusted is different, influences the print quality of final product.Therefore it provides one kind is melted
The self-level(l)ing device and method for depositing increasing material manufacturing are very necessary.
Summary of the invention
The present invention needs manually to level to solve the print platform of existing 3D printer, is unable to reach precisely and imitates
The problems such as rate is low provides the self-level(l)ing device and leveling method of a kind of fusion sediment increasing material manufacturing.
Technical solution of the present invention:
A kind of self-level(l)ing device of fusion sediment increasing material manufacturing, including print platform 1, nut 2, lead screw 3, control motor
4, laser range sensor 5 and controller, 4 nuts 2 are fixedly mounted on print platform 1 simultaneously by fixing sleeve respectively
It is distributed at four angles position below print platform；The lower section of each nut 2 is coupled with a lead screw 3, the axis of lead screw 3
Line and plane where print platform are orthogonal；The output shaft of lead screw 3 and control motor 4 is fixedly mounted, and controls the input of motor 4
End is connect with the output end of controller；The output end of the laser range sensor 5 and the input terminal of controller connect.
It is preferred: the laser range sensor 5 be used for measure spray head 6 discharge port and 1 upper surface of print platform it
Between effective distance；The controller is DSP28335 model single-chip microcontroller, and controller is used to receive the survey of laser range sensor 5
Effective distance between 1 upper surface of discharge port and print platform of the spray head 6 measured is simultaneously calculated, and controls each control
The velocity of rotation and turnning circle of the output shaft of motor.
A kind of method for automatically leveling using above-mentioned self-level(l)ing device, method includes the following steps:
S001 initialization, the error amount of set target value and permission, target value are according to the straight of printed material and spray head 6
The target range of 6 discharge port of spray head and 1 upper surface of print platform that diameter parameter determines, target value 0.05-0.5mm；Error amount
The error allowed between 1 upper surface of 6 discharge port of spray head and print platform；
S100 laser range sensor 5 measures 1 upper surface of print platform and spray head 6 of four 2 positions of nut respectively
Effective distance between discharge port；
S200 controller calculates 5 data measured of laser range sensor, seeks four position effective distances and mesh respectively
Difference between scale value；
S300 controller controls the difference between the effective distance and target value of four calibrations of control motors 4, four positions respectively
Value is less than error amount.
It is preferred: the step S100 are as follows: firstly, spray head is moved to the corresponding print platform 1 of one of nut 2
Surface；Then, the connection of controller and laser range sensor 5 is waken up, the wake-up for completing laser range sensor 5 is answered
It answers；Subsequently, laser is emitted to print platform 1 by controller control laser range sensor 5, and passes through laser range sensor
The optical signal being recovered to is carried out processing calculating by 5 signal recovery system, obtain that laser range sensor 5 measures this at spray head
Effective distance between 6 and print platform 1, controller save the effective distance data that laser range sensor 5 measures,
Complete the effective distance measurement of first position；Finally, repeating the above steps, make laser range sensor 5 respectively to other three
Effective distance between 1 upper surface of print platform and the discharge port of spray head 6 of each and every one 2 corresponding position of nut completes second
The effective distance measurement of position, third position and the 4th position.
It is preferred: the step S200 are as follows: first controller laser range sensor 5 in step S100 is measured
One position, second position, third position and the 4th position effective distance data are calculated, and seek four positions respectively
Set a little difference between effective distance and target value；Then, control motor is calculated according to the screw pitch of the difference and lead screw 3
4 rotary speed direction and the angle of required rotation.
It is preferred: the determination of the rotary speed direction of the control motor 4, when the effective distance of location point is less than target range
When, the controller control control rotating forward of motor 4 makes 3 downlink of lead screw；When the effective distance of location point is greater than target range, controller
The control control reversion of motor 4 makes 3 uplink of lead screw.
Preferred: the step S300 includes:
Control at the first position that S310 is calculated according to step S200 motor 4 rotary speed direction and required rotation
Angle, and be adjusted；
After S320 judges that passing through control motor 4 at first position is adjusted, the effective distance of the point and the difference of target range
Whether error, error≤0.1mm are less than；S310 step is returned to when being as a result no, result is to enter next step S330 when being；
The rotary speed direction of the second place control motor 4 that S330 is calculated according to step S200 and required rotation
Angle, and be adjusted；
After S340 judges that the second place is adjusted by control motor 4, the effective distance of the point and the difference of target range
Whether error, error≤0.1mm are less than；It as a result is no return S330 step, result is to be into next step S350；
Control at the third place that S350 is calculated according to step S200 motor 4 rotary speed direction and required rotation
Angle, and be adjusted；
After S360 judges that passing through control motor 4 at the third place is adjusted, the effective distance of the point and the difference of target range
Whether error, error≤0.1mm are less than；It as a result is no return S350 step, result is to be into next step S370；
Control at the 4th position that S370 is calculated according to step S200 motor 4 rotary speed direction and required rotation
Angle, and be adjusted；
After S380 judges that passing through control motor 4 at the 4th position is adjusted, the effective distance of the point and the difference of target range
Whether error, error≤0.1mm are less than；S370 step is returned to when being as a result no, result is to be into next step S390；
S390 calibrates the effective distance of four positions adjusted and whether target value is respectively less than error amount；When being as a result no
Return step S310 completes adjustment until the effective distance of four positions and target value are respectively less than error amount.
Preferred: this method further includes S002, and the step S002 is 5 initialization and control of laser range sensor electricity
Machine 4 initializes.
The invention has the following advantages: the present invention relates to a kind of self-level(l)ing device of fusion sediment increasing material manufacturing and
Leveling method carries out spray head to the ranging between print platform first with laser range sensor, and will survey measured four angles
Distance feed back to controller and calculated, obtain an average value, i.e. this average value equilibrium state for being print platform.So
Controller control control motor rotates the lead screw installed on four angles afterwards, realizes and moves up and down with nut cooperation, reaches
Each point and spray head on print platform form a horizontality, that is, complete the automatic leveling of a print platform.This hair
The bright automatic leveling for realizing print platform further simplifies the operation before printer work, and effectively mentions
High printing precision and printing effect, realize the intelligence, automation, foolproof operation of fusion sediment increasing material manufacturing device,
Eliminate the difference of the product print quality as caused by operator's Specialized Quality difference.
Detailed description of the invention
Fig. 1 is the self-level(l)ing device structural schematic diagram of fusion sediment increasing material manufacturing；
Fig. 2 is the flow chart of the method for automatically leveling of fusion sediment increasing material manufacturing；
Fig. 3 is the flow chart of another embodiment of the method for automatically leveling of fusion sediment increasing material manufacturing；
1- print platform in figure, 2- nut, 3- lead screw, 4- control motor, 5- laser range sensor, 6- spray head.
Specific embodiment
Illustrate the specific embodiment of the invention in conjunction with attached drawing 1 to Fig. 3: a kind of fusion sediment increasing material manufacturing of the present invention it is automatic
Levelling device and leveling method, as shown in Figure 1, the device includes print platform 1, nut 2, lead screw 3, control motor 4, Laser Measuring
Away from sensor 5 and controller, 4 nuts 2 are fixedly mounted on print platform 1 respectively and are distributed in by fixing sleeve and beaten
It prints at four angles position below platform；The lower section of each nut 2 is coupled with a lead screw 3, the axis of lead screw 3 and printing
Plane where platform is orthogonal；The output shaft of lead screw 3 and control motor 4 is fixedly mounted, and controls input terminal and the control of motor 4
The output end of device connects；The laser range sensor 5 can be mounted on the spray head 6 of 3D printer by upright guide rail,
It can also not reside on spray head 6, the output end of laser range sensor 5 and the input terminal of controller connect.The laser
Distance measuring sensor 5 is used to measure the effective distance between 1 upper surface of discharge port and print platform of spray head 6；The controller is
DSP28335 model single-chip microcontroller, controller is for receiving the discharge port for the spray head 6 that the measurement of laser range sensor 5 obtains and beating
Print 1 upper surface of platform between effective distance and calculated, and control it is each control motor output shaft velocity of rotation and
Turnning circle.So set, carrying out spray head 6 to the ranging between print platform 1 first with laser range sensor 5, and will survey
The distance at measured four angles feeds back to controller and is calculated, and obtains an average value, i.e. this average value is print platform 1
Equilibrium state.Then controller control control motor 4 rotates the lead screw 3 installed on four angles, cooperates with nut real
It now moves up and down, each point and spray head 6 reached on print platform 1 forms a horizontality, that is, it is flat to complete primary printing
The automatic leveling of platform 1.
As shown in Fig. 2, a kind of method for automatically leveling of fusion sediment increasing material manufacturing, comprising the following steps:
S001 initialization, the error amount of set target value and permission, target value are according to the straight of printed material and spray head 6
The target range of 6 discharge port of spray head and 1 upper surface of print platform that diameter parameter determines, target value 0.05-0.5mm；Error amount
The error allowed between 1 upper surface of 6 discharge port of spray head and print platform；
S100 laser range sensor 5 measures 1 upper surface of print platform and spray head 6 of four 2 positions of nut respectively
Effective distance between discharge port；
S200 controller calculates 5 data measured of laser range sensor, seeks four position effective distances and mesh respectively
Difference between scale value；
S300 controller controls the difference between the effective distance and target value of four calibrations of control motors 4, four positions respectively
Value is less than error amount.So set, as shown in figure 3, this method further includes step S001 and S002；The step S001 be
System initialization of variable；The step S002 is the initialization of 5 initialization and control motor 4 of laser range sensor.
The course of work of this method is as follows:
Firstly, carrying out step S100, spray head is moved to the surface of the corresponding print platform 1 of one of nut 2；So
Afterwards, the connection of controller and laser range sensor 5 is waken up, the wake-up response of laser range sensor 5 is completed；By controller control
Laser range sensor 5 processed emits laser to print platform 1, and will be returned by the signal recovery system of laser range sensor 5
The optical signal received carries out processing calculating, obtain that laser range sensor 5 measures this between spray head 6 and print platform 1
Effective distance, controller save the effective distance data that laser range sensor 5 measures, and complete having for first position
Imitate range measurement；It repeats the above steps, beats laser range sensor 5 to 2 corresponding position of the other three nut respectively
The effective distance between 1 upper surface of platform and the discharge port of spray head 6 is printed, second position, third position and the 4th are completed
The effective distance of position measures.
Then, step S200, first position that controller measures laser range sensor 5 in above-mentioned steps S100 are carried out
It sets, second position, third position and the 4th position effective distance data carry out that having for each location point is calculated
Imitate distance and target range difference, and according to the screw pitch of the difference and lead screw 3 be calculated control motor 4 rotary speed direction with
And the angle of required rotation.And control the rotary speed direction of motor 4 be determined as when location point effective distance be less than target away from
From when, controller control control motor 4 rotating forward make 3 downlink of lead screw；When the effective distance of location point is greater than target range, control
The device control control reversion of motor 4 makes 3 uplink of lead screw.
Finally, carrying out step S300；
Step S300 includes:
Control at the first position that S310 is calculated according to step S200 motor 4 rotary speed direction and required rotation
Angle, and be adjusted；
After S320 judges that passing through control motor 4 at first position is adjusted, the effective distance of the point and the difference of target range
Whether error, error≤0.1mm are less than；S310 step is returned to when being as a result no, result is to enter next step S330 when being；
The rotary speed direction of the second place control motor 4 that S330 is calculated according to step S200 and required rotation
Angle, and be adjusted；
After S340 judges that the second place is adjusted by control motor 4, the effective distance of the point and the difference of target range
Whether error, error≤0.1mm are less than；It as a result is no return S330 step, result is to be into next step S350；
Control at the third place that S350 is calculated according to step S200 motor 4 rotary speed direction and required rotation
Angle, and be adjusted；
After S360 judges that passing through control motor 4 at the third place is adjusted, the effective distance of the point and the difference of target range
Whether error, error≤0.1mm are less than；It as a result is no return S350 step, result is to be into next step S370；
Control at the 4th position that S370 is calculated according to step S200 motor 4 rotary speed direction and required rotation
Angle, and be adjusted；
After S380 judges that passing through control motor 4 at the 4th position is adjusted, the effective distance of the point and the difference of target range
Whether error, error≤0.1mm are less than；S370 step is returned to when being as a result no, result is to be into next step S390；
S390 calibrates the effective distance of four positions adjusted and whether target value is respectively less than error amount；When being as a result no
Return step S310 completes the tune of entire print platform until the effective distance of four positions and target value are respectively less than error amount
It is whole.
This embodiment is just an exemplary description of this patent, does not limit its protection scope, those skilled in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (8)
1. a kind of self-level(l)ing device of fusion sediment increasing material manufacturing, it is characterised in that: including print platform (1), nut (2),
Lead screw (3), control motor (4), laser range sensor (5) and controller, 4 nuts (2) pass through fixing sleeve respectively
It is fixedly mounted on print platform (1) and is distributed at the position of four angles below print platform (1)；The lower section of each nut (2)
It is coupled with a lead screw (3), the axis of lead screw (3) and plane where print platform are orthogonal；Lead screw (3) and control
The output shaft of motor (4) is fixedly mounted, and the output end of the input terminal and controller that control motor (4) connects；The Laser Measuring
The input terminal of output end and controller away from sensor (5) connects.
2. a kind of self-level(l)ing device of fusion sediment increasing material manufacturing according to claim 1, it is characterised in that: described
Laser range sensor (5) is used to measure the effective distance between the discharge port of spray head (6) and print platform (1) upper surface, and
Feed data back to controller；The controller is DSP28335 model single-chip microcontroller, and controller is for receiving laser ranging sensing
Effective distance between the discharge port and print platform (1) upper surface of the spray head (6) that the measurement of device (5) obtains simultaneously is calculated,
And velocity of rotation, rotary speed direction and the turnning circle of the output shaft of each control motor (4) are controlled respectively.
3. a kind of method for automatically leveling using above-mentioned self-level(l)ing device, it is characterised in that: method includes the following steps:
The error amount of S001 initialization, set target value and permission, target value are the diameter according to printed material and spray head (6)
The target range of spray head (6) discharge port and print platform (1) upper surface that parameter determines, target value 0.05-0.5mm；Error
The error that value allows between spray head (6) discharge port and print platform (1) upper surface；
S100 laser range sensor (5) measures print platform (1) upper surface and spray head of four nut (2) positions respectively
(6) effective distance between discharge port；
S200 controller calculates laser range sensor (5) data measured, seeks four position effective distances and target respectively
Difference between value；
S300 controller controls the difference between the effective distance and target value of four control motors (4) calibrations, four positions respectively
Less than error amount.
4. a kind of method for automatically leveling using above-mentioned self-level(l)ing device according to claim 3, it is characterised in that: institute
The step S100 stated are as follows: firstly, spray head to be moved to the surface of the corresponding print platform (1) of one of nut (2)；So
Afterwards, the connection of controller and laser range sensor (5) is waken up, the wake-up response of laser range sensor (5) is completed；Again so
Afterwards, by controller control laser range sensor (5) transmitting laser to print platform (1), and pass through laser range sensor (5)
Signal recovery system the optical signal being recovered to is subjected to processing calculating, obtain that laser range sensor (5) measures this at spray
Effective distance between head (6) and print platform (1), the effective distance data that controller measures laser range sensor (5)
It is saved, completes the effective distance measurement of first position；Finally, repeating the above steps, make laser range sensor (5) point
It is other to effective between print platform (1) upper surface of the other three nut (2) corresponding position and the discharge port of spray head (6)
Distance completes the effective distance measurement of second position, third position and the 4th position.
5. a kind of method for automatically leveling using above-mentioned self-level(l)ing device according to claim 4, it is characterised in that: institute
The step S200 stated are as follows: first controller laser range sensor (5) in step S100 is measured first position, second
Position, third position and the 4th position effective distance data are calculated, and are sought four location points respectively and are obtained effective distance
Difference between target value；Then, the revolving speed side of control motor (4) is calculated according to the screw pitch of the difference and lead screw (3)
To and required rotation angle.
6. according to right want 5 described in a kind of method for automatically leveling using above-mentioned self-level(l)ing device, it is characterised in that: it is described
Control motor (4) rotary speed direction determination, when the effective distance of location point be less than target range when, controller control control
Motor (4) rotating forward makes lead screw (3) downlink；When the effective distance of location point is greater than target range, controller control control motor
(4) reversion makes lead screw (3) uplink.
7. a kind of method for automatically leveling using above-mentioned self-level(l)ing device according to claim 5, it is characterised in that: institute
The step S300 stated includes:
The rotary speed direction of motor (4) and the angle of required rotation are controlled at the first position that S310 is calculated according to step S200
Degree, and be adjusted；
S320 judges after adjusting at first position by control motor (4) that the effective distance of the point and the difference of target range are
It is no to be less than error, error≤0.1mm；S310 step is returned to when being as a result no, result is to enter next step S330 when being；
S330 is according to the rotary speed direction of step S200 second place control motor (4) being calculated and the angle of required rotation
Degree, and be adjusted；
After S340 judges that the second place is adjusted by control motor (4), the effective distance of the point and the difference of target range are
It is no to be less than error, error≤0.1mm；It as a result is no return S330 step, result is to be into next step S350；
The rotary speed direction of motor (4) and the angle of required rotation are controlled at the third place that S350 is calculated according to step S200
Degree, and be adjusted；
S360 judges after adjusting at the third place by control motor (4) that the effective distance of the point and the difference of target range are
It is no to be less than error, error≤0.1mm；It as a result is no return S350 step, result is to be into next step S370；
The rotary speed direction of motor (4) and the angle of required rotation are controlled at the 4th position that S370 is calculated according to step S200
Degree, and be adjusted；
S380 judges after adjusting at the 4th position by control motor (4) that the effective distance of the point and the difference of target range are
It is no to be less than error, error≤0.1mm；S370 step is returned to when being as a result no, result is to be into next step S390；
S390 calibrates the effective distance of four positions adjusted and whether target value is respectively less than error amount；It is returned when being as a result no
Step S310 completes adjustment until the effective distance of four positions and target value are respectively less than error amount.
8. a kind of method for automatically leveling using above-mentioned self-level(l)ing device according to claim 3, it is characterised in that: should
Method further includes S002, and the step S002 is laser range sensor (5) initialization and control motor (4) initialization.
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| CN114055780A (en) * | 2021-10-26 | 2022-02-18 | 深圳市纵维立方科技有限公司 | Automatic leveling method for 3D printer, storage medium and 3D printing equipment |
| CN113977935A (en) * | 2021-11-15 | 2022-01-28 | 温州大学 | Hot rolling device suitable for FDM type 3D prints |
| CN114683546A (en) * | 2022-04-03 | 2022-07-01 | 昊柏(上海)生命科技有限公司 | 3D printing equipment for artificial heart printing and bionic construction method |
| CN115041714A (en) * | 2022-06-19 | 2022-09-13 | 南京中科煜宸激光技术有限公司 | Rotating shaft health monitoring device and method for powder-laying type metal additive manufacturing equipment |
| CN115319119A (en) * | 2022-08-23 | 2022-11-11 | 南京中科煜宸激光技术有限公司 | Powder-spreading type metal additive manufacturing equipment, substrate calibration device, substrate calibration method and scanning galvanometer calibration method |
| CN116141674A (en) * | 2022-12-12 | 2023-05-23 | 合肥工业大学 | 3D printer substrate automatic leveling device and method based on visual ranging |
| CN116141674B (en) * | 2022-12-12 | 2024-04-12 | 合肥工业大学 | 3D printer substrate automatic leveling device and method based on visual ranging |
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