CN102506732A - Online detection system and detection method for cylindrical ingots in spray forming - Google Patents
Online detection system and detection method for cylindrical ingots in spray forming Download PDFInfo
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- CN102506732A CN102506732A CN2011103369601A CN201110336960A CN102506732A CN 102506732 A CN102506732 A CN 102506732A CN 2011103369601 A CN2011103369601 A CN 2011103369601A CN 201110336960 A CN201110336960 A CN 201110336960A CN 102506732 A CN102506732 A CN 102506732A
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- laser range
- range sensor
- ingot blank
- depositional plane
- diameter
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Abstract
The invention belongs to the metal manufacturing technology, and relates to an online detection system and a detection method for cylindrical ingots in spray forming. The online detection system comprises a depositing chamber. A retractable drum of a collector, a depositing plate and an atomizer are arranged in the depositing chamber, a depositing surface position laser ranging sensor, a bottom laser ranging sensor and a diameter laser ranging sensor are arranged outside the depositing chamber and connected to a PLC (programmable logic controller) and an I/O (input/output) module. The depositing surface position laser ranging sensor is arranged above the depositing plate, and the measuring light of the depositing surface position laser ranging sensor is perpendicular to the depositing tray. The bottom laser ranging sensor is arranged below the lower end face of the retractable drum of the collector, and the measuring light of the bottom laser ranging sensor is perpendicular to the lower end face of the collector retracting drum. The diameter laser ranging sensor is arranged on one side of the depositing chamber and is driven to lift and fall by a servo motor, and the measuring light of the diameter laser ranging sensor runs through and is perpendicular to the center line of the depositing plate. The online detection system is reasonable in structure and high in measurement precision.
Description
Technical field
The invention belongs to the manufacturing technology of metal material, relate to a kind of on-line detecting system and detection method of reaction-injection moulding cylinder ingot blank dynamic dimension.
Background technology
In the reaction-injection moulding process of metal material; Ingot blank is a semi-solid-state metal material deposition growing and forming constantly; Ingot blank size (diameter, highly) and deposition parameter (depositional plane height and position) are one of the important indicator of reflection reaction-injection moulding macro-effect and main foundation that technological parameter is dynamically adjusted; Therefore, the detection of deposition ingot blank dynamic dimension is a gordian technique in the reaction-injection moulding field.
Under the desirable jet deposition state; The deposition ingot blank is the even right cylinder of a diameter, and the depositional plane height and position is constant, but in the actual ejection process; Because the random perturbation of each technological parameter; And the retracting motion of gatherer, be difficult to guarantee that retraction speed is consistent all the time with sedimentation velocity, thereby caused: dynamic change can take place in (1) depositional plane height; (2) ingot blank deviation from circular from; (3) flatness error of deposition surface.Mainly there is following problem in process of production in the size detecting system of conventional spray former: (1) is for the measurement of the diameter at current depositional plane place; Need make the laser range sensor measurement point remain at current depositional plane position; And in sediment pan decline process gradually because the fluctuation of depositional plane position, make the raising of bearing accuracy of measurement point have difficulties; (2) because the influence of the flatness error of deviation from circular from and the depositional plane of ingot blank in the forming process has limited the raising of diameter accuracy of detection and depositional plane height detection precision.
Summary of the invention
Technical matters to be solved by this invention is, provide a kind of can be to the on-line detecting system and the detection method of the reaction-injection moulding cylinder ingot blank dynamic dimension that the billet size in the reaction-injection moulding process is monitored in real time, measuring accuracy is high.
The on-line detecting system of reaction-injection moulding cylinder ingot blank dynamic dimension of the present invention includes the settling chamber; Be provided with gatherer retraction tube rotatable and up-down in the settling chamber; Gatherer retraction tube upper end is provided with can be with the sediment pan of its rotation and up-down, and sediment pan top one side is provided with the atomizer of aerosolizable injection liquid metal material; Said settling chamber outer setting has depositional plane position laser range sensor, bottom laser range sensor and diameter laser range sensor, and described three sensors all are connected to a PLC controller and I/O module; Said depositional plane position laser range sensor is positioned at the sediment pan top, and it is vertical with sediment pan that it measures light, and the settling chamber's housing between depositional plane position laser range sensor and the sediment pan is provided with the quartz glass of transmit light; Said bottom laser range sensor is positioned at the below, lower surface of gatherer retraction tube, and it is vertical with the lower surface of gatherer retraction tube that it measures light; Said diameter laser range sensor is positioned at settling chamber's one side, its measure light place straight line through and perpendicular to the center line of sediment pan, the diameter laser range sensor is gone up and down by a driven by servomotor.
Said servomotor is through screw-nut body driving diameter laser range sensor.
Said PLC controller and I/O module are connected with the touch-screen of exchange message with it.
The online test method of reaction-injection moulding cylinder ingot blank dynamic dimension of the present invention is: in the reaction-injection moulding process, use above-mentioned reaction-injection moulding cylinder ingot blank dynamic dimension on-line detecting system,
A. utilize depositional plane position laser range sensor to measure current depositional plane of ingot blank and the height distance h between the laser range sensor of depositional plane position;
B. utilize the height distance h1 between laser range sensor measurement collection device retraction tube lower surface, bottom and the bottom laser range sensor; Combine level altitude distance H and sediment pan upper surface and the level altitude distance H 1 between the gatherer retraction tube lower surface between depositional plane position laser range sensor and the bottom laser range sensor again, calculate and obtain current ingot blank height
;
C. utilize the diameter laser range sensor that the measurement point of the current depositional plane of ingot blank below setpoint distance is measured; Obtain between diameter laser range sensor and the ingot blank profile apart from S; Combine the fixed range L between diameter laser range sensor and the sediment pan center line then, calculate and obtain ingot blank diameter
;
D. working as the current depositional plane height and position of ingot blank changes; When making the measurement point highly deviated depositional plane below setpoint distance of diameter laser range sensor; By depositional plane position laser range sensor measuring-signal is sent to PLC controller and I/O module, it is handled and is moving to setpoint distance below the current depositional plane on the short transverse according to result control driven by servomotor diameter laser range sensor by PLC controller and I/O module.
Among the said step a, in ingot blank rotates a circle process, measure a plurality of points, and the mean value of getting each point measurement value confirms as the height distance h of mensuration, measure dot number was confirmed according to the permission sampling period of rotational speed and sensor; If the ingot blank rotating speed be v (rev/min); It is T (ms) that sensor allows the sampling period; Measure dot number
then, ingot blank depositional plane height distance
.
Among the said step c; In ingot blank rotates a circle process; Measure a plurality of points; And the mean value of getting each point measurement value confirm as between diameter laser range sensor and the ingot blank profile apart from S; Measure dot number was confirmed according to the permission sampling period of rotational speed and sensor; If the ingot blank rotating speed be v (rev/min); It is T (ms) that sensor allows the sampling period, measure dot number
then, ingot blank diameter
.
Diameter deviation from circular from, the depositional plane position dynamic that the present invention fully takes into account the deposition ingot blank changes, the depositional plane flatness error; The range information that utilizes laser range sensor to measure; Through corresponding techniques method, measurement mechanism and control system; Carry out current depositional plane diameter, the ingot blank height of ingot blank, the Real-time and Dynamic Detection of depositional plane position; Form ingot blank diameter in the reaction-injection moulding process, trend and rule highly over time, for the adjustment of technological parameter provides real-time feedback data, its system architecture is reasonable, measuring accuracy is high.
Description of drawings
Fig. 1 is the system architecture schematic diagram of the embodiment of the invention.
Embodiment
As shown in the figure, the on-line detecting system of reaction-injection moulding cylinder ingot blank dynamic dimension of the present invention and the embodiment of detection method thereof are following:
As shown in the figure; In the system implementation example of the present invention, ingot blank dynamic dimension test section comprises: depositional plane position laser range sensor 1, bottom laser range sensor 2, diameter laser range sensor 3, screw-nut body 4, servomotor 5, PLC controller and I/O module 6.Laser range sensor is output as the 4-20mA current signal, can be converted into distance signal through PLC controller and I/O module 6, and the line data of going forward side by side is handled, and forms measured ingot blank dynamic dimension data, on display device, shows.Reaction-injection moulding deposition part comprises: settling chamber 9, gatherer retraction tube 10, sediment pan 12, atomizer 13.Sediment pan 12 connects with gatherer retraction tube 10, and does retracting motion with gatherer retraction tube 10.Perforate and quartz glass 7 is installed on the housing of settling chamber, the printing opacity wavelength and the laser sensor wavelength of quartz glass are complementary, and to eliminate the reflection of laser, guarantee measuring accuracy.
As shown in the figure, the part that system of the present invention is used for ingot blank depositional plane height and position
and ingot blank height
detection comprises: depositional plane position laser range sensor 1, bottom laser range sensor 2, PLC controller and I/O module 6.Depositional plane position laser range sensor 1 is fixedly mounted on outside the settling chamber, guarantees during installation that the laser circuit is vertical with sediment pan 12, and is positioned at the opposite side of atomizer, to prevent sediment interferometry point.Through sediment box upper surface place, perforate is also installed quartz glass 7 at laser.Adopt " multimetering " metering system; In ingot blank rotates a circle process; Measure measure dot number
calculating by formula; Every point measurement data are gathered and are handled by PLC controller and I/O module 6; Ingot blank depositional plane height calculates by
; Result of calculation is presented on the touch-screen 16 on the one hand, and one side is as the basis of ingot blank height and servomotor 5 servo-actuateds control.
Bottom laser range sensor 2 is fixedly mounted on outside the settling chamber, guarantees during installation that the laser circuit is vertical with gatherer retraction sleeve 10 bottom surfaces.Measurement data is gathered and is handled by PLC controller and I/O module 6, obtains measuring distance
.
After sensor 1 and sensor 2 installations; Measure distance
between the two, the distance
between measurement collection device retraction sleeve 10 bottom surfaces and sediment pan 12 upper surfaces.
According to above-mentioned measurement result, PLC controller and I/O module 6 by formula
are calculated ingot blank height
.Result of calculation is presented on the touch-screen 16.
The part that system of the present invention is used for the diameter detection of ingot blank depositional plane place comprises: diameter laser range sensor 3, screw-nut body 4, servomotor 5, PLC controller and I/O module 6.
Servomotor 5 fixed installations; Screw-nut body 4 and servomotor 5 output shaft couplings; Guarantee that the leading screw axis of rotation is parallel with the axis of rotation of sediment pan 12, diameter laser range sensor 3 is installed on the nut of screw-nut body 4, like this; When motor rotated, diameter laser range sensor 3 can move up and down.Diameter laser range sensor 3 installation sites are horizontal direction, the axis of rotation 17 of its laser route through sediment pan 12 and perpendicular.
Before injection, the jetting height position of adjustment sediment pan 12 to technological requirement, the position of the adjustment diameter laser range sensor 3 that rotatablely moves through servomotor 5 makes its measuring point be positioned at 2mm place, sediment pan 12 upper surfaces below.
In the reaction-injection moulding process; The depositional plane distance signal that depositional plane position laser range sensor 1 records is sent to PLC controller and I/O module 6; The PLC program is controlled the position of following of diameter laser range sensor 3 according to the variation of depositional plane distance signal; Servo-actuated direction and displacement are delivered to servo-drive and servomotor 5; Drive diameter laser range sensor 3 through screw-nut body 4 and move, thereby guarantee that the measuring point of diameter laser range sensor 3 is positioned at the 2mm place, depositional plane below of ingot blank 15 all the time.
Adopt " multimetering, weighted mean " measuring method.In ingot blank rotates a circle process; Measure dot number by formula
is calculated; Every point measurement data are gathered and are handled by PLC controller and I/O module 6, and ingot blank diameter by formula
calculates.Result of calculation is presented on the touch-screen 16 on the one hand, on the one hand as spray deposition processing parameter control, adjustment foundation.
Claims (6)
1. the on-line detecting system of a reaction-injection moulding cylinder ingot blank dynamic dimension; It includes settling chamber (9); Be provided with gatherer retraction tube (10) rotatable and up-down in the settling chamber; Gatherer retraction tube upper end is provided with can be with the sediment pan (12) of its rotation and up-down; Sediment pan top one side is provided with atomizer (13), and it is characterized in that: said settling chamber (9) outer setting has depositional plane position laser range sensor (1), bottom laser range sensor (2) and diameter laser range sensor (3), and described three sensors all are connected to a PLC controller and I/O module (6); Said depositional plane position laser range sensor (1) is positioned at the sediment pan top, and it is vertical with sediment pan that it measures light, and the settling chamber's housing between depositional plane position laser range sensor (1) and the sediment pan is provided with the quartz glass (7) of transmit light; Said bottom laser range sensor (2) is positioned at the below, lower surface of gatherer retraction tube (10), and it is vertical with the lower surface of gatherer retraction tube that it measures light; Said diameter laser range sensor (3) is positioned at settling chamber's one side, its measure light place straight line through and perpendicular to the center line of sediment pan, diameter laser range sensor (3) is driven by servomotor (5).
2. the on-line detecting system of reaction-injection moulding cylinder ingot blank dynamic dimension according to claim 1 is characterized in that: said servomotor (5) is through screw-nut body (4) driving diameter laser range sensor (3).
3. the on-line detecting system of reaction-injection moulding cylinder ingot blank dynamic dimension according to claim 1 is characterized in that: said PLC controller and I/O module (6) are connected with the touch-screen of exchange message (16) with it.
4. the online test method of a reaction-injection moulding cylinder ingot blank dynamic dimension is characterized in that: in the reaction-injection moulding process, use above-mentioned reaction-injection moulding cylinder ingot blank dynamic dimension on-line detecting system,
A. utilize depositional plane position laser range sensor (1) to measure current depositional plane of ingot blank and the height distance h between the laser range sensor of depositional plane position;
B. utilize the height distance h1 between laser range sensor (2) measurement collection device retraction tube lower surface, bottom and the bottom laser range sensor; Combine level altitude distance H and sediment pan upper surface and the level altitude distance H 1 between the gatherer retraction tube lower surface between depositional plane position laser range sensor and the bottom laser range sensor again, calculate and obtain current ingot blank height h
2=H-H
1-h-h
1
C. utilize diameter laser range sensor (3) that the measurement point of the current depositional plane of ingot blank below setpoint distance is measured; Obtain between diameter laser range sensor and the ingot blank profile apart from S; Combine the fixed range L between diameter laser range sensor and the sediment pan center line then, calculate to obtain the * 2 of ingot blank diameter d=(L-S);
D. working as the current depositional plane height and position of ingot blank changes; When making the measurement point highly deviated depositional plane below setpoint distance of diameter laser range sensor; By depositional plane position laser range sensor measuring-signal is sent to PLC controller and I/O module (6), it is handled and is moving to setpoint distance below the current depositional plane on the short transverse according to result driving diameter laser range sensor by PLC controller and I/O module.
5. the online test method of reaction-injection moulding cylinder ingot blank dynamic dimension according to claim 4; It is characterized in that: among the step a; In ingot blank rotates a circle process; Measure a plurality of points, and the mean value of getting each point measurement value confirms as the height distance h of mensuration, measure dot number was confirmed according to the permission sampling period of rotational speed and sensor; If the ingot blank rotating speed be v (rev/min), it is T (ms), then measure dot number that sensor allows the sampling period
Ingot blank depositional plane height distance
6. the online test method of reaction-injection moulding cylinder ingot blank dynamic dimension according to claim 4 is characterized in that: among the step c, in ingot blank rotates a circle process; Measure a plurality of points; And the mean value of getting each point measurement value confirm as between diameter laser range sensor and the ingot blank profile apart from S, measure dot number confirms according to permission sampling period of rotational speed and sensor, establish the ingot blank rotating speed and be v (rev/min); It is T (ms), then measure dot number that sensor allows the sampling period
The ingot blank diameter
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103369601A CN102506732A (en) | 2011-10-28 | 2011-10-28 | Online detection system and detection method for cylindrical ingots in spray forming |
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|---|---|---|---|
| CN2011103369601A CN102506732A (en) | 2011-10-28 | 2011-10-28 | Online detection system and detection method for cylindrical ingots in spray forming |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090832A (en) * | 2013-02-01 | 2013-05-08 | 青岛云路新能源科技有限公司 | Method and device capable of quickly measuring outer diameter of high-speed-rotating-wheel type crystallizer |
| CN109926377A (en) * | 2017-12-15 | 2019-06-25 | 杉野机械股份有限公司 | The inspection method and its device of nozzle |
| CN113639659A (en) * | 2021-08-10 | 2021-11-12 | 广东省特种设备检测研究院惠州检测院 | Comprehensive detector and measuring method for measuring geometric dimension of special pressure-bearing equipment |
| CN113909501A (en) * | 2021-09-23 | 2022-01-11 | 沈阳精合数控科技开发有限公司 | Thickness monitoring device and adjusting method of laser deposition layer and laser deposition equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090832A (en) * | 2013-02-01 | 2013-05-08 | 青岛云路新能源科技有限公司 | Method and device capable of quickly measuring outer diameter of high-speed-rotating-wheel type crystallizer |
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| CN109926377A (en) * | 2017-12-15 | 2019-06-25 | 杉野机械股份有限公司 | The inspection method and its device of nozzle |
| CN109926377B (en) * | 2017-12-15 | 2021-08-31 | 杉野机械股份有限公司 | Nozzle inspection method and apparatus |
| CN113639659A (en) * | 2021-08-10 | 2021-11-12 | 广东省特种设备检测研究院惠州检测院 | Comprehensive detector and measuring method for measuring geometric dimension of special pressure-bearing equipment |
| CN113909501A (en) * | 2021-09-23 | 2022-01-11 | 沈阳精合数控科技开发有限公司 | Thickness monitoring device and adjusting method of laser deposition layer and laser deposition equipment |
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Application publication date: 20120620 |