CN205940823U - Selective laser melting shaped article residual stress real -time detection device - Google Patents
Selective laser melting shaped article residual stress real -time detection device Download PDFInfo
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- CN205940823U CN205940823U CN201620842789.XU CN201620842789U CN205940823U CN 205940823 U CN205940823 U CN 205940823U CN 201620842789 U CN201620842789 U CN 201620842789U CN 205940823 U CN205940823 U CN 205940823U
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- residual stress
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model relates to a selective laser melting shaped article residual stress real -time detection device, it prints vibration material disk technical field to belong to 3D, the utility model provides a can carry out real -time detection to goods inside residual stress, avoid goods warpage, carry high yield's selective laser melting shaped article residual stress real -time detection device, the technical scheme that adopts is provided with laser sintering shaper and alarm on the die cavity for becoming, X ray stress detection device passes through displacement adjusting mechanisms and installs at the shaping intracavity, the lateral wall that becomes the die cavity is provided with major control system, the laser sintering shaper, alarm and X ray stress detection device all are connected with major control system, X ray stress detection device mainly comprises X -ray tube, collimator tube and X X -ray detector, and the X -ray tube is used for launching the X ray to shine on shaped article through the collimator tube, X X -ray detector is used for receiving the X ray, the utility model discloses extensively be used for selective laser melting to take shape.
Description
Technical field
This utility model is related to a kind of selective laser melting molded article residual stress real-time detection apparatus, belongs to 3D and beats
Print increases material manufacturing technology field.
Background technology
3D printing technique is a kind of contrary with traditional material processing method, based on three-dimensional CAD model data, by material by
The technology of layer superimposed structure three-dimensional body.3D printing technique is related to CAD/CAM, mechanical engineering, Layered Manufacturing Technology, laser skill
Multiple subjects such as art, Numeric Control Technology, elaborate servo actuation techniques and new material technology.This technique simplifies fabrication schedule, contracting
The short new product lead time, reduce development cost and risk it is considered to be the third time industrial revolution.Selective laser melting becomes
Shape technology（SLM）It is one of the most potential technology of 3D printing technique field.This technology is directly melted using high energy beam laser
Change metal dust, formable high-performance metal part.
The ultimate principle of SLM technology is:First design the three-dimensional real of part using 3D sculpting software on computers
Body Model, carries out slicing delamination by special-purpose software to three-dimensional part model, obtains the outline data in each section, subsequently will process
Complete data imports former.Before laser beam starts scanning, power spreading device tiles metal dust to the base of formation cylinder first
On plate, laser beam presses the metal dust on the filling contour line selective melting forming board of current layer again.After processing current layer,
Formation cylinder declines the distance of a thickness, and powder cylinder rises certain distance, and power spreading device is completed on manufactured current layer
Metal dust, the data that equipment calls in next layer of profile is processed, and so processes layer by layer, until whole part completion of processing.
Whole process is carried out in the forming cavity be connected with inert gas shielding, to avoid metal to occur with other gases at high temperature
Reaction.
In SLM forming process, due to metal dust, after laser fusion, cooldown rate is very fast, and product internal cooling is uneven,
Being also easy to produce residual stress, cause product buckling deformation, thus affecting quality of item, or even shaping unsuccessfully.At present be difficult to monitoring and
In control SLM forming process, the distribution of product internal residual stress and size are it is impossible to avoid the product causing due to residual stress
Buckling deformation, have impact on the development of SLM technology to a certain extent.
Utility model content
For solving the technical problem that prior art exists, this utility model provides one kind and product internal residual can be answered
Power carries out real-time detection, it is to avoid product buckling deformation, and the selective laser melting molded article residual stress improving yield rate is real
When detection means.
For achieving the above object, the technical scheme that this utility model is adopted is a kind of selective laser melting molded article
Residual stress real-time detection apparatus, including：Forming cavity, described forming cavity is provided with laser sintering (SLS) device and alarm, and X penetrates
Uniaxial stress detection means is arranged on molding intracavity, and the top positioned at molded article, described forming cavity by shift adjusting machine
Side wall be provided with master control system, described laser sintering (SLS) device, alarm and X-ray stress detection device are all and master control system
It is connected；Described X-ray stress detection device is mainly made up of X-ray tube, collimator tube and X-ray detector, described X-ray tube
For launching X-ray, and it is radiated on molded article by collimator tube, X-ray detector is used for receiving X-ray.
Preferably, described shift adjusting machine includes hydraulic lifting pillar, horizontal movement device and rotation device, institute
State the inside both sides that hydraulic lifting pillar is arranged on forming cavity, described horizontal movement device is arranged on hydraulic lifting pillar, rotation
Turn telecontrol equipment to be arranged on horizontal movement device, X-ray stress detection device is arranged on rotation device, described X penetrates
Infrared distance measurement device is provided with uniaxial stress detection means, described infrared distance measurement device is connected with master control system.
Preferably, described horizontal movement device is mainly by the first slide rail, bearing, the first slide block, in front and back leading screw, left and right silk
Thick stick, in front and back motor and left and right driving motor are constituted, and described first slide rail is arranged on the top of hydraulic lifting pillar, and described the
The two ends of one slide rail are provided with bearing, are provided with before and after's leading screw between described bearing, and the bottom of described first slide block is arranged on
On one slide rail, and top is arranged on before and after's leading screw by screw, motor before and after the end installation of described leading screw in front and back, institute
State and between the first slide block, be provided with left and right leading screw and the second slide rail, the second slide block in described rotation device is slidably mounted on
On second slide rail, and it is arranged on the leading screw of left and right by screw, the end of described left and right leading screw is provided with left and right driving motor, institute
State before and after's motor to be all connected with master control system with left and right driving motor.
Preferably, described rotation device mainly by the second slide block, davit, suspension bracket, cross bar, horizontally rotate gear train,
Vertically rotate gear group, horizontally rotate motor and vertical rotary electric machine is constituted, the bottom of described second slide block is provided with davit, institute
State and be rotatablely equipped with suspension bracket on davit, described horizontally rotate gear train and be arranged on the second slider top, and be connected with davit, water
Flat turn moving gear group is connected with horizontally rotating motor, described suspension bracket is rotatablely equipped with cross bar, the side wall of described suspension bracket sets
It is equipped with vertical rotate gear group, and is connected with cross bar, described vertical rotate gear group is connected with vertical rotary electric machine, described
X-ray stress detection device is arranged on cross bar, described horizontally rotate motor and is all connected with master control system with vertical rotary electric machine
Connect.
Compared with prior art, this utility model has following technique effect：This utility model when SLM shapes, this dress
Put and can carry out real-time detection to product internal residual stress.When in product, residual stress reaches certain numerical value, by reporting to the police
Device reminds operator's adjustment forming parameter, thus product internal residual stress is reduced or eliminated, it is to avoid product buckling deformation, carries
High finished product rate and product structure property.This device is significant to the development of SLM forming technique.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of X-ray stress detection device in this utility model.
Specific embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect become more apparent, with
Lower combination drawings and Examples, are further elaborated to this utility model.It should be appreciated that concrete reality described herein
Apply example only in order to explain this utility model, be not used to limit this utility model.
As shown in Figure 1 and Figure 2, a kind of selective laser melting molded article residual stress real-time detection apparatus, including：Become
Die cavity 1, forming cavity 1 is provided with laser sintering (SLS) device 13 and alarm 14, and X-ray stress detection device 23 is adjusted by displacement
Whole mechanism is arranged in forming cavity 1, and is located at the top of molded article 26, and the side wall of forming cavity 1 is provided with master control system 19, swashs
Light thermal sintering device 13, alarm 14 are all connected with master control system 19 with X-ray stress detection device 23；X-ray stress is examined
Survey device 23 to be mainly made up of X-ray tube 24, collimator tube 25 and X-ray detector 27, X-ray tube 24 is used for launching X-ray, and
It is radiated on molded article 26 by collimator tube, X-ray detector 27 is used for receiving X-ray.X-ray produces from X-ray tube 24,
Intercept a branch of suitable light beam through collimator tube 25 and be irradiated to product 26 surface, diffraction maximum is detected by X-ray detector 27, survey
Determine the angle of diffraction, then product residual stress is calculated according to the angle of diffraction.
Wherein, shift adjusting machine includes hydraulic lifting pillar 2, horizontal movement device and rotation device, hydraulic pressure liter
Descending branch post 2 is arranged on the inside both sides of forming cavity 1, and horizontal movement device is arranged on hydraulic lifting pillar 2, rotation device
It is arranged on horizontal movement device, X-ray stress detection device 23 is arranged on rotation device, X-ray stress mornitoring fills
Put and infrared distance measurement device 16 is installed on 23, infrared distance measurement device 16 is connected with master control system 19.
Horizontal movement device is mainly by the first slide rail 3, bearing 15, the first slide block 6, in front and back leading screw 7, left and right leading screw 8, in front and back
Motor 4 and left and right driving motor 5 are constituted, and the first slide rail 3 is arranged on the top of hydraulic lifting pillar 2, and the two of the first slide rail 3
End is provided with bearing 15, is provided with before and after's leading screw 7, the bottom of the first slide block 6 is arranged on the first slide rail 3 between bearing 15, and
Top is arranged on before and after's leading screw 7 by screw, and motor 4 before and after the end of leading screw 7 is installed in front and back, between the first slide block 6
It is provided with left and right leading screw 8 and the second slide rail 17, the second slide block 10 in rotation device is slidably mounted on the second slide rail 17,
And be arranged on left and right leading screw 8 by screw, the end of left and right leading screw 8 is provided with left and right driving motor 5, motor 4 in front and back
All it is connected with master control system 19 with left and right driving motor 5.Motor 4 rotates in front and back, drives first to slide by front and back's leading screw 7
Block 6 and the device being arranged on slide block are moved forward and backward；Left and right driving motor 5 rotates, and drives second to slide by left and right leading screw
The device that block 10 is arranged on slide block is moved left and right.
Rotation device mainly by the second slide block 10, davit 20, suspension bracket 22, cross bar 9, horizontally rotate gear train 11, perpendicular
Straight rotate gear group 21, horizontally rotate motor 12 and vertical rotary electric machine 18 is constituted, the bottom of the second slide block 10 is provided with davit
20, davit 20 is rotatablely equipped with suspension bracket 22, horizontally rotates gear train 11 and be arranged on the second slide block 10 top, and with davit 20 phase
Connect, horizontally rotate gear train 11 and horizontally rotate motor and 12 be connected, suspension bracket 22 is rotatablely equipped with cross bar 9, suspension bracket 22
Vertical rotate gear group 21 is provided with the wall of side, and is connected with cross bar 9, vertical rotate gear group 21 and vertical rotary electric machine 18
Be connected, X-ray stress detection device 23 is arranged on cross bar 9, horizontally rotate motor 12 and vertical rotary electric machine 18 all with main
Control system 19 is connected.Horizontally rotate motor 12 to rotate, drive suspension bracket to carry out horizontal direction by horizontally rotating gear train 11
Rotate in the range of 360 °；Vertically rotary electric machine 18 rotates, and drives X-ray stress detection device 23 by vertical rotate gear group 21
Carry out rotating in the range of 360 ° of vertical direction.
By hydraulic lifting pillar, horizontal movement device and rotation device, it has been capable of X-ray tension gauge
23 move at an arbitrary position such that it is able to drive X-ray tension gauge 23 to be moved along article section profile, carry out three-dimensional
The measurement in space, according to the features of shape of product, adjusts the measurement angle being suitable to.Wherein infrared distance measuring device 16, for surveying
Amount X-ray tension gauge 23 and the distance in product 26 section, and range information is fed back to control system 19, thus being adjusted
Whole.
Alarm device 14 is arranged on forming cavity lateral wall, on the right side of laser sintering (SLS) device 13, laser sintered every time
Forming device 13 fusing formation of parts one layer cross section after, control system 19 according to formation of parts section profile information, by X-ray
Tension gauge 23 motion adjust X-ray tension gauge 23 measurement angle, measurement distance and along article section profile fortune
Dynamic rail mark it is ensured that measurement accuracy.The residual stress distribution of the part diverse location recording and size cases are fed back to control
System 19 processed.Reach certain numerical value when X-ray tension gauge 23 records product 26 internal residual stress in SLM forming process
When, control system 19 will start alarm device 14, remind operator's adjustment forming parameter.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Any modification, equivalent and improvement made within the spirit of utility model and principle etc., all should wrap in this utility model model
In enclosing.
Claims (4)
1. a kind of selective laser melting molded article residual stress real-time detection apparatus, including：Forming cavity it is characterised in that：
Laser sintering (SLS) device and alarm are provided with described forming cavity, X-ray stress detection device is pacified by shift adjusting machine
It is contained in molding intracavity, and the top positioned at molded article, the side wall of described forming cavity is provided with master control system, described laser sintered
Former, alarm are all connected with master control system with X-ray stress detection device；Described X-ray stress detection device is main
It is made up of X-ray tube, collimator tube and X-ray detector, described X-ray tube is used for launching X-ray, and is radiated at by collimator tube
On molded article, X-ray detector is used for receiving X-ray.
2. a kind of selective laser melting molded article residual stress real-time detection apparatus according to claim 1, it is special
Levy and be：Described shift adjusting machine includes hydraulic lifting pillar, horizontal movement device and rotation device, described hydraulic pressure liter
Descending branch post is arranged on the inside both sides of forming cavity, and described horizontal movement device is arranged on hydraulic lifting pillar, and rotary motion fills
Put and be arranged on horizontal movement device, X-ray stress detection device is arranged on rotation device, described X-ray stress inspection
Survey, on device, infrared distance measurement device is installed, described infrared distance measurement device is connected with master control system.
3. a kind of selective laser melting molded article residual stress real-time detection apparatus according to claim 2, it is special
Levy and be：Described horizontal movement device mainly by the first slide rail, bearing, the first slide block, in front and back leading screw, left and right leading screw, drive in front and back
Galvanic electricity machine and left and right driving motor are constituted, and described first slide rail is arranged on the top of hydraulic lifting pillar, described first slide rail
Two ends are provided with bearing, are provided with before and after's leading screw between described bearing, and the bottom of described first slide block is arranged on the first slide rail,
And top is arranged on before and after's leading screw by screw, motor before and after the end installation of described leading screw in front and back, described first is sliding
It is provided with left and right leading screw and the second slide rail, the second slide block in described rotation device is slidably mounted on the second slide rail between block
On, and be arranged on the leading screw of left and right by screw, the end of described left and right leading screw is provided with left and right driving motor, described drive in front and back
Galvanic electricity machine is all connected with master control system with left and right driving motor.
4. a kind of selective laser melting molded article residual stress real-time detection apparatus according to claim 3, it is special
Levy and be：Described rotation device mainly by the second slide block, davit, suspension bracket, cross bar, horizontally rotate gear train, vertically rotate
Gear train, horizontally rotate motor and vertical rotary electric machine and constitute, the bottom of described second slide block is provided with davit, on described davit
Be rotatablely equipped with suspension bracket, described horizontally rotate gear train and be arranged on the second slider top, and be connected with davit, horizontally rotate tooth
Wheel group is connected with horizontally rotating motor, and described suspension bracket is rotatablely equipped with cross bar, the side wall of described suspension bracket is provided with vertically
Rotate gear group, and be connected with cross bar, described vertical rotate gear group is connected with vertical rotary electric machine, and described X-ray should
Force checking device is arranged on cross bar, described horizontally rotate motor and is all connected with master control system with vertical rotary electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620842789.XU CN205940823U (en) | 2016-08-05 | 2016-08-05 | Selective laser melting shaped article residual stress real -time detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620842789.XU CN205940823U (en) | 2016-08-05 | 2016-08-05 | Selective laser melting shaped article residual stress real -time detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205940823U true CN205940823U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620842789.XU Withdrawn - After Issue CN205940823U (en) | 2016-08-05 | 2016-08-05 | Selective laser melting shaped article residual stress real -time detection device |
Country Status (1)
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|---|---|
| CN (1) | CN205940823U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168518A (en) * | 2016-08-05 | 2016-11-30 | 中北大学 | Selective laser melting molded article residual stress real-time detection apparatus |
| CN107437366A (en) * | 2017-09-27 | 2017-12-05 | 哈工大机器人（合肥）国际创新研究院 | A kind of selective laser sintering 3D printing demonstration machine |
| CN108132075A (en) * | 2017-11-14 | 2018-06-08 | 西北工业大学 | The method of calibration and its data measurement unit of high energy beam increasing material manufacturing finite element thermal influence zone |
| FR3103559A1 (en) * | 2019-11-25 | 2021-05-28 | Safran | Stress measurement method |
-
2016
- 2016-08-05 CN CN201620842789.XU patent/CN205940823U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168518A (en) * | 2016-08-05 | 2016-11-30 | 中北大学 | Selective laser melting molded article residual stress real-time detection apparatus |
| CN106168518B (en) * | 2016-08-05 | 2018-11-23 | 中北大学 | Selective laser melting molded article residual stress real-time detection apparatus |
| CN107437366A (en) * | 2017-09-27 | 2017-12-05 | 哈工大机器人（合肥）国际创新研究院 | A kind of selective laser sintering 3D printing demonstration machine |
| CN107437366B (en) * | 2017-09-27 | 2023-09-05 | 哈工大机器人（合肥）国际创新研究院 | Selective laser sintering 3D printing demonstration machine |
| CN108132075A (en) * | 2017-11-14 | 2018-06-08 | 西北工业大学 | The method of calibration and its data measurement unit of high energy beam increasing material manufacturing finite element thermal influence zone |
| CN108132075B (en) * | 2017-11-14 | 2019-07-12 | 西北工业大学 | The method of calibration and its data measurement unit of high energy beam increasing material manufacturing finite element thermal influence zone |
| FR3103559A1 (en) * | 2019-11-25 | 2021-05-28 | Safran | Stress measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20181123 |