CN108296618A - Laser ranging system and investigating method for silk material plasma arc increasing material manufacturing - Google Patents
Laser ranging system and investigating method for silk material plasma arc increasing material manufacturing Download PDFInfo
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- CN108296618A CN108296618A CN201710022695.7A CN201710022695A CN108296618A CN 108296618 A CN108296618 A CN 108296618A CN 201710022695 A CN201710022695 A CN 201710022695A CN 108296618 A CN108296618 A CN 108296618A
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- China
- Prior art keywords
- heap
- displacement sensor
- laser displacement
- coating
- material manufacturing
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
- B23K10/027—Welding for purposes other than joining, e.g. build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/006—Control circuits therefor
Abstract
The invention discloses a kind of laser ranging systems and investigating method for silk material plasma arc increasing material manufacturing, which includes workbench, substrate, plasma gun, laser displacement sensor and its fixture, computer and robot control cabinet.Its investigating method measures the distance between itself and heap coating by non-contacting Laser Displacement sensor, and the floor height of heap coating is calculated by computer, and is communicated with robot control cabinet, adjusts welding gun height when the lower a pile coating starting the arc.The present invention can realize to carbon steel, stainless steel, titanium alloy wire materials plasma arc increasing material manufacturing heap coating height detection, it controls heap and applies height of the process nozzle away from component, realize the adjust automatically of plasma arc increasing material manufacturing process nozzle height, heap is effectively avoided to apply the too low caused silk pressing of process nozzle, nozzle burns the problems such as applying defect with the excessively high caused splashing of nozzle and heap, so that forming process is more accurate, more automates, the dimensional accuracy and Forming Quality of molded part are effectively improved.
Description
Technical field
The invention belongs to electric arc increases material manufacturing technology field, relate generally to a kind of for silk material plasma arc increasing material manufacturing
Laser ranging system and investigating method.
Background technology
Electric arc increasing material manufacturing (Wire Arc Additive Manufacture, WAAM) is a kind of former based on successively cladding
Reason, (MIG) electric arc is connect using welding, gas tungsten arc welding connects (TIG) electric arc and wait from
Son welding (PAW) electric arc is heat source, gradual according to planning path by being melted under the control being preprogramed for silk material or powder
The advanced digitlization that heap applies into the hardware of needs increases manufacturing technology, his is in the nature that the quick heap of metal applies forming.Electricity
Arc increasing material manufacturing has the characteristics that shaping efficiency is high, silk material utilization rate is high, heap applies compact structure, molded part function admirable, can be with
Realize the once-forming of complex component.Subtract material manufacture compared to traditional, increasing material manufacturing save material have simultaneously it is higher at
Type efficiency, therefore be widely used in multiple fields such as space flight and aviation, automobile making, shipbuildings, there is important research
Meaning and bright foreground, are known as the mark of the third time industrial revolution.
During the automatic moulding of electric arc increasing material manufacturing, heap applies parameter and suitable distance of the nozzle away from workpiece is determined, when
Easily occurs molten drop splashing when nozzle is excessively high away from workpiece, the droplet transfer will appear " big drop " transition, influence molded appearance and quality；When
It is susceptible to silk pressing when nozzle is too low and burns nozzle, silk pressing can be such that silk material pricks to even deviate from heap into molten bath and apply direction to destroy
Molding.Therefore need by detect heap apply height come it is real-time adjust nozzle and away from heap apply the height of part avoid nozzle too high or too low
The phenomenon that so that forming process is more accurate, more automates, and effectively improves the dimensional accuracy and Forming Quality of molded part.Mesh
In the preceding detection means for distance, non-contacting Laser Displacement sensor due to intact workpiece surface, measuring speed it is fast,
Precision height, the advantages that high sensitivity, the linearity is good, range ability is optional, anti-optical interference performance is strong are to realize increasing material manufacturing heap
Apply the effective ways of height detection.
Relevant technology detected and controlled to electric arc increasing material manufacturing process at present considerably less, patent《A kind of increasing material manufacturing
The real-time measurement that drip molding deforms in journey》(application number 201510954796.9) discloses drip molding during a kind of increasing material manufacturing
The method for real-time measurement and device of deformation, by displacement sensor detect measurement point deformation, but be unable to control heap apply process and
Deformation, also without solving the problems, such as the self-adjusting of welding gun.Patent《The double passive vision sensing detection devices of GMA increasing material manufacturings and its inspection
Survey method》(application number：201510282713.6) disclose a kind of visual sensing detection device to GMA increasing material manufacturing processes and
Its detection method detects compact dimensions by visual image sensing, needs to carry out complex process to acquisition image, accuracy and straight
Sight degree can not be compared with accurate laser displacement sensor.
Invention content
The present invention is intended to provide a kind of laser ranging system and investigating method for silk material plasma arc increasing material manufacturing, makes
Forming process more precisely, more automate, effectively improve the dimensional accuracy and Forming Quality of molded part.
To achieve the above object, a kind of laser ranging for silk material plasma arc increasing material manufacturing provided by the invention fills
It sets, including：Laser displacement sensor is fixed on the plasma gun for silk material plasma arc increasing material manufacturing by fixture；
Control system, control system control connection laser displacement sensor and plasma gun；Wherein, control system includes：
It collects measuring signal and exports the data collecting card of analog quantity；Distance is shown in the form of numerical value, calculated, shown floor height and lead to
Cross the computer of data collecting card output analog quantity；Further include for controlling the plasma gun being clamped on robot arm
The robot control cabinet of action.
In order to realize the purpose of foregoing invention, above-mentioned silk material plasma arc increasing material manufacturing is utilized the present invention also provides a kind of
The method of laser displacement sensing devices control nozzle height, is as follows：
Step 1, before heap applies, the measurement position of laser sensor is set, welding gun, laser displacement sensor and heap apply body and be located at
Same vertical plane, initial distance of the measurement sensor apart from heap coating position are L1；
Step 2, after completing one of heap coating, laser displacement sensor is moved to and measures position, robot executes waiting
Order, laser displacement sensor emit laser positioning point location and apply region in the stabilization heap of current heap coating, start to measure sensing
Distance L of the device apart from heap coating2；
Step 3, the distance signal that laser displacement sensor obtains is transmitted to computer, computer by data collecting card
Display distance numerical value and the story height H=L for calculating current heap coating1-L2；
Step 4, floor height numerical value is exported in the form of analog quantity by data collecting card and is transferred to robot control cabinet
I/O port and the analogue value is assigned to variable P, i.e. P=H；
Step 5, robot terminates equal Wait Orders, executes heap and applies program translation order, control entire heap apply program raise away from
Measurement position from P, including laser sensor, height of the nozzle away from component and current heap coating heap when lower a pile coating heap being made to apply
Nozzle is away from the highly consistent of component when applying, and the heap for starting lower a pile coating applies；
Step 6, step 2 is repeated to 5, is applied until completing heap.
It is preferred that laser displacement sensor, which measures position, is located at the surface that heap applies body, initial distance L1For
The angle theta of 10mm-1000mm, laser displacement sensor and horizontal direction is 90 °.
Preferably, the silk material of plasma arc increasing material manufacturing is H08Mn2Si carbon steels silk material, CrNi stainless steels silk material and TiAl
Titanium alloy wire materials.
The present invention compares compared with the existing technology has following remarkable advantage：1, proposed by the present invention to be used for silk material plasma
The laser ranging system and investigating method of arc increasing material manufacturing can realize the inspection high to plasma arc increasing material manufacturing process heap coating
Survey the closed-loop control with nozzle height；2, by the height of adjust automatically nozzle to workpiece, heap is effectively avoided to apply process nozzle mistake
Silk pressing, nozzle caused by low burn the problems such as applying defect with the excessively high caused splashing of nozzle and heap so that forming process is more smart
Standard more automates, and effectively improves the dimensional accuracy and Forming Quality of molded part.
Description of the drawings
Fig. 1 is silk material plasma-arc increasing material manufacturing laser ranging system structural schematic diagram；
Fig. 2 is silk material plasma-arc increasing material manufacturing laser distance measurement method flow chart.
Wherein, 1 is workbench, and 2 be substrate, and 3 apply body for heap, and 4 be heap coating, and 5 be plasma gun, and 6 be fixture, 7
It is data collecting card for laser displacement sensor, 8,9 be computer, and 10 be robot control cabinet, and 11 be Song Ji mechanisms and wire tray.
Specific implementation mode
The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Laser ranging system for silk material plasma arc increasing material manufacturing as shown in Figure 1 proposed by the present invention, including：
Laser displacement sensor 7, the laser displacement sensor 7 are fixed on by fixture 6 for silk material plasma arc
On the plasma gun 5 of increasing material manufacturing；
Control system, the laser displacement sensor 7 and plasma gun 5 which connects and control is described；
Wherein, control system includes：Acquire the data collecting card 8 of 7 measuring signal of laser displacement sensor；By distance with number
The form of value is shown, is calculated, is shown floor height and by the computer 9 of data collecting card output analog quantity；Further include for controlling
The robot control cabinet 10 that the plasma gun 5 being clamped on robot arm acts.
It is specific to use, silk material plasma arc increasing material manufacturing platform：MOTOMAN MH6 arc welding robots and workbench 1 increase
Material power supply is 3000 type welding machines of Fronius MagicWave, plasma arc controller.
Under the conditions of different parameters and heap apply, altitude range of the nozzle away from workpiece is 6-10mm, and molding heap coating floor height is
0.3-2mm selects suitable nozzle height according to the factors such as technological parameter and heap coating floor height when heap applies, passes through range-measurement system control
It makes nozzle height when each layer heap is applied to be consistent, it is ensured that heap applies the stabilization of process, improves heap and applies weight.
Embodiment 1
The present invention provides a kind of sensed using above-mentioned silk material plasma arc increasing material manufacturing laser displacement as shown in Figure 2 to fill
The investigating method set, specific implementation step are as follows：
Step 1, before heap applies, the measurement position of laser sensor 7 is set, welding gun 5, laser displacement sensor 7 and heap apply body 3
Positioned at same vertical plane, laser displacement sensor 7 measures position and is located at the surface that heap applies body 3, laser displacement sensor 7 and
The angle theta of horizontal direction is 90 °, initial distance L of the laser displacement sensor 7 apart from heap coating position1For 60mm；
Step 2, Song Ji mechanisms and wire tray 11 start wire feed, and after completing one of heap coating, laser displacement sensor 7 is moved
To position, the Wait Orders such as robot execution is measured, laser displacement sensor 7 emits laser positioning point location in current heap coating
Stablize heap and applies region, distance L of the measurement sensor apart from heap coating2For 59.5mm；
Step 3, the distance signal that laser displacement sensor 7 obtains is transmitted to computer 9 by data collecting card 8, counted
9 display distance numerical value of calculation machine and the story height H for calculating current heap coating are 0.5mm；
Step 4, floor height numerical value is exported in the form of analog quantity by data collecting card 8 and is transferred to robot control cabinet
The analogue value is simultaneously assigned to variable P by 10 I/O port, i.e. P is 0.5mm；
Step 5, robot terminates to wait Wait Orders, executes heap and applies program translation order, controls the deposited program of entire heap and raises
0.5mm includes the measurement position of laser sensor 7, and height of the nozzle away from component is applied with current heap when lower a pile coating heap being made to apply
Nozzle is away from the highly consistent of component when layer heap is applied, and the heap for starting lower a pile coating applies；
Step 6, step 2 is repeated to 5, is applied until completing heap.
Silk material plasma-arc increasing material manufacturing, silk material be Ф 1mm H08Mn2Si, electric current 120A, heap apply speed be
40cm/min, silk filling speed are 1.0/min, ion-gas 0.8L/min, protection gas 15L/min.
Embodiment 2
The present invention provides a kind of sensed using above-mentioned silk material plasma arc increasing material manufacturing laser displacement as shown in Figure 2 to fill
The investigating method set, specific implementation step are as follows：
Step 1, before heap applies, the measurement position of laser sensor 7 is set, welding gun 5, laser displacement sensor 7 and heap apply body 3
Positioned at same vertical plane, laser displacement sensor 7 measures position and is located at the surface that heap applies body 3, laser displacement sensor 7 and
The angle theta of horizontal direction is 90 °, initial distance L of the laser displacement measurement sensor 7 apart from heap coating position1For
200mm；
Step 2, Song Ji mechanisms and wire tray 11 start wire feed, and after completing one of heap coating, laser displacement sensor 7 is moved
To position, the Wait Orders such as robot execution is measured, laser displacement sensor 7 emits laser positioning point location in current heap coating
Stablize heap and applies region, distance L of the measurement sensor 7 apart from heap coating2For 198.5mm；
Step 3, the distance signal that laser displacement sensor 7 obtains is transmitted to computer 9 by data collecting card 8, counted
9 display distance numerical value of calculation machine and the story height H for calculating current heap coating are 1.5mm；
Step 4, floor height numerical value is exported in the form of analog quantity by data collecting card 8 and is transferred to robot control cabinet
The analogue value is simultaneously assigned to variable P by 10 I/O port, i.e. P is 1.5mm；
Step 5, robot terminates to wait Wait Orders, executes heap and applies program translation order, controls the deposited program of entire heap and raises
1.5mm includes the measurement position of laser sensor 7, and height of the nozzle away from component is applied with current heap when lower a pile coating heap being made to apply
Nozzle is away from the highly consistent of component when layer heap is applied, and the heap for starting lower a pile coating applies；
Step 6, step 2 is repeated to 5, is applied until completing heap.
The silk material plasma-arc increasing material manufacturing, silk material are the Ti6Al4V of Ф 1.2mm, electric current 200A, and heap applies speed
For 45cm/min, silk filling speed is 2.0/min, ion-gas 1.0L/min, protection gas 20L/min.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (5)
1. a kind of laser ranging system for silk material plasma arc increasing material manufacturing, which is characterized in that including：
Laser displacement sensor (7), the laser displacement sensor (7) are fixed on by fixture (6) for silk material plasma
On the plasma gun (5) of arc increasing material manufacturing；
Control system, the laser displacement sensor (7) and plasma gun (5) which connects and control is described；
Wherein, control system includes：Data collecting card (8) for acquiring laser displacement sensor (7) measuring signal；By distance
It is shown, is calculated, display floor height in the form of numerical value, and export the computer (9) of analog quantity by data collecting card；Further include using
It is clamped in the robot control cabinet (10) of the action of the plasma gun (5) on robot arm in control.
2. the laser ranging system according to claim 1 for silk material plasma arc increasing material manufacturing, which is characterized in that institute
It states laser displacement sensor (7) and uses contactless range laser displacement sensor.
3. the investigating method of the laser ranging system of the silk material plasma arc increasing material manufacturing according to claim 1-2, special
Sign is, includes the following steps：
Step 1, before heap applies, the measurement position of setting laser displacement sensor (7), plasma gun (5), laser displacement sensor
(7) body (3) is applied with heap and is located at same vertical plane, and initial distance of the measurement sensor apart from heap coating position is L1；
Step 2, after completing one of heap coating (4), laser displacement sensor (7) is moved to and measures position, robot executes etc.
Wait Order, laser displacement sensor (7) emit laser positioning point location and apply region in the stabilization heap of current heap coating (4), start
Measurement sensor applies the distance L of body away from heap2；
Step 3, the distance signal that laser displacement sensor (7) obtains is transmitted to computer (9) by data collecting card (8),
Computer (9) display distance numerical value and the story height H=L for calculating current heap coating (4)1-L2；
Step 4, floor height numerical value is exported in the form of analog voltage signal by data collecting card (8) and is transferred to robot control
The analogue value is simultaneously assigned to variable P, i.e. P=H by the I/O port of cabinet (10) processed；
Step 5, robot terminates equal Wait Orders, executes heap and applies program translation order, control plasma gun (5), laser displacement
Sensor (7) raises distance P, is sprayed when height of the nozzle away from component is applied with current heap coating (4) heap when lower a pile coating heap being made to apply
Mouth is away from the highly consistent of component, and the heap for starting lower a pile coating applies；
Step 6, step 2 is repeated to 5, is applied until completing heap.
4. the investigating method of the laser ranging system of silk material plasma arc increasing material manufacturing according to claim 3, feature
It is, in step 1, the laser displacement sensor measures position and is：Laser displacement sensor, plasma gun and heap apply position
In same vertical plane, it is located at the surface of heap coating, initial distance L1For 10mm-1000mm, laser displacement sensor and water
Square to angle theta be 90 °.
5. the investigating method of the laser ranging system of silk material plasma arc increasing material manufacturing according to claim 3, feature
It is, the silk material of the plasma arc increasing material manufacturing is that H08Mn2Si carbon steels silk material, CrNi stainless steels silk material or TiAl titaniums close
Spun gold material.
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| CN201710022695.7A CN108296618B (en) | 2017-01-12 | 2017-01-12 | Laser ranging device and measurement and control method for wire plasma arc additive manufacturing |
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| CN201710022695.7A CN108296618B (en) | 2017-01-12 | 2017-01-12 | Laser ranging device and measurement and control method for wire plasma arc additive manufacturing |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352139A (en) * | 2018-08-07 | 2019-02-19 | 燕山大学 | A kind of oxygen controlled framework metalloid part GTAW electric arc increasing material manufacturing system and method |
| CN111037052A (en) * | 2019-12-26 | 2020-04-21 | 西安铂力特增材技术股份有限公司 | Arc additive manufacturing forming detection feedback compensation system and detection feedback compensation method |
| CN111121972A (en) * | 2019-12-20 | 2020-05-08 | 东南大学 | Device for online monitoring of local dry-method additive temperature and height |
| CN111360367A (en) * | 2020-04-18 | 2020-07-03 | 南京中科煜宸激光技术有限公司 | High-automatic following electric arc additive manufacturing printing device and printing method |
| CN111496345A (en) * | 2019-01-31 | 2020-08-07 | 南京理工大学 | Method and device for manufacturing melting electrode electric arc and hot filler wire composite single-electric-arc twin-wire additive |
| CN112059385A (en) * | 2020-08-14 | 2020-12-11 | 湘潭大学 | Layer height real-time control method for magnetic control plasma arc fuse additive manufacturing |
| CN112548270A (en) * | 2020-11-26 | 2021-03-26 | 西安交通大学 | Automatic temperature measuring system and method for electric arc additive manufacturing |
| CN113375557A (en) * | 2021-06-18 | 2021-09-10 | 华中科技大学 | Method for positioning actual processing point by using photosensitive element in laser additive manufacturing |
| CN113484107A (en) * | 2021-05-20 | 2021-10-08 | 扬州大学 | Special cutting device of Overlay test piece |
| CN114101852A (en) * | 2021-10-27 | 2022-03-01 | 江苏大学 | Paraxial front wire feeding control method and device for functionally graded metal arc additive manufacturing |
| CN114222642A (en) * | 2019-08-07 | 2022-03-22 | 三菱电机株式会社 | Stacking molding device, stacking molding method, and stacking molding program |
| CN114453716A (en) * | 2022-02-24 | 2022-05-10 | 西安鑫精合智能制造有限公司 | Plasma arc additive manufacturing device and plasma arc additive manufacturing method |
| CN115647564A (en) * | 2022-11-04 | 2023-01-31 | 哈尔滨工业大学 | Additive wire filling self-adjusting friction stir welding device and method |
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| CN109352139A (en) * | 2018-08-07 | 2019-02-19 | 燕山大学 | A kind of oxygen controlled framework metalloid part GTAW electric arc increasing material manufacturing system and method |
| CN111496345A (en) * | 2019-01-31 | 2020-08-07 | 南京理工大学 | Method and device for manufacturing melting electrode electric arc and hot filler wire composite single-electric-arc twin-wire additive |
| CN114222642A (en) * | 2019-08-07 | 2022-03-22 | 三菱电机株式会社 | Stacking molding device, stacking molding method, and stacking molding program |
| CN111121972B (en) * | 2019-12-20 | 2021-03-16 | 东南大学 | Device for online monitoring of local dry-method additive temperature and height |
| CN111121972A (en) * | 2019-12-20 | 2020-05-08 | 东南大学 | Device for online monitoring of local dry-method additive temperature and height |
| CN111037052A (en) * | 2019-12-26 | 2020-04-21 | 西安铂力特增材技术股份有限公司 | Arc additive manufacturing forming detection feedback compensation system and detection feedback compensation method |
| CN111360367B (en) * | 2020-04-18 | 2022-03-08 | 南京中科煜宸激光技术有限公司 | High-automatic following electric arc additive manufacturing printing device and printing method |
| CN111360367A (en) * | 2020-04-18 | 2020-07-03 | 南京中科煜宸激光技术有限公司 | High-automatic following electric arc additive manufacturing printing device and printing method |
| CN112059385A (en) * | 2020-08-14 | 2020-12-11 | 湘潭大学 | Layer height real-time control method for magnetic control plasma arc fuse additive manufacturing |
| CN112548270A (en) * | 2020-11-26 | 2021-03-26 | 西安交通大学 | Automatic temperature measuring system and method for electric arc additive manufacturing |
| CN113484107A (en) * | 2021-05-20 | 2021-10-08 | 扬州大学 | Special cutting device of Overlay test piece |
| CN113484107B (en) * | 2021-05-20 | 2023-12-08 | 扬州大学 | Special cutting device of Overlay test piece |
| CN113375557A (en) * | 2021-06-18 | 2021-09-10 | 华中科技大学 | Method for positioning actual processing point by using photosensitive element in laser additive manufacturing |
| CN113375557B (en) * | 2021-06-18 | 2022-04-12 | 华中科技大学 | Method for positioning actual processing point by using photosensitive element in laser additive manufacturing |
| CN114101852A (en) * | 2021-10-27 | 2022-03-01 | 江苏大学 | Paraxial front wire feeding control method and device for functionally graded metal arc additive manufacturing |
| CN114453716A (en) * | 2022-02-24 | 2022-05-10 | 西安鑫精合智能制造有限公司 | Plasma arc additive manufacturing device and plasma arc additive manufacturing method |
| CN115647564A (en) * | 2022-11-04 | 2023-01-31 | 哈尔滨工业大学 | Additive wire filling self-adjusting friction stir welding device and method |
| CN115647564B (en) * | 2022-11-04 | 2024-02-02 | 哈尔滨工业大学 | Device and method for additive type wire filling self-adjusting friction stir welding |
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