CN108274113A - The laser head assembly carried apart from inducing function with temperature-compensating - Google Patents
The laser head assembly carried apart from inducing function with temperature-compensating Download PDFInfo
- Publication number
- CN108274113A CN108274113A CN201810053747.1A CN201810053747A CN108274113A CN 108274113 A CN108274113 A CN 108274113A CN 201810053747 A CN201810053747 A CN 201810053747A CN 108274113 A CN108274113 A CN 108274113A
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- China
- Prior art keywords
- laser head
- temperature
- distance
- head assembly
- sensor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention relates to a kind of laser head assemblies carried apart from inducing function with temperature-compensating, wherein, the laser head assembly includes range sensor, temperature sensor, control module and digital control system, the distance signal transmission of temperature signal and range sensor acquisition that the control module acquires the temperature sensor is to digital control system, the digital control system carries out compensated distance according to the temperature signal to the distance signal received, generate the measurement distance after compensation, and the measurement distance after the compensation is fed back to the control module, control module goes control laser head work according to the measurement distance after the compensation.Efficiently solve the problems, such as that measurement distance error caused by being influenced by temperature is big using the device, ensure that laser head steadily efficiently works, and it is simple in structure, cost is relatively low, using effect is good.
Description
Technical field
The present invention relates to technical field of laser processing more particularly to laser head distance detection technical field, in particular to
A kind of laser head assembly carried apart from inducing function with temperature-compensating.
Background technology
Laser head is generally loaded on lathe or manipulator, is accepted the laser of laser output, is controlled by software, for cutting
It cuts, weld or melts and the processing technologys such as cover.Laser head is needed in operation and workpiece keeps specific range to reach best processing
Effect will also avoid colliding with workpiece.The range sensor used in laser head in the prior art is for detecting laser head nozzle
May the member of measurement distance be influenced due to the variation of environment temperature with the distance of the distance of workpiece, but range sensor detection
Device has larger error so as to cause the distance of measurement, when such as carrying out range measurement with capacitance sensor, laser processing production
Raw high temperature can influence the accuracy of capacitance sensor.
Invention content
The purpose of the present invention is overcoming the above-mentioned prior art, providing one kind can effectively reduce due to environment temperature
Influence caused by measurement distance it is inaccurate with temperature-compensating with the laser head assembly apart from inducing function.
To achieve the goals above, having with the laser head assembly apart from inducing function with temperature-compensating of the invention
There is following composition：
The laser head assembly carried apart from inducing function with temperature-compensating, is mainly characterized by, the laser
Head device include：
Range sensor, for detecting the distance between nozzle and workpieces processing in the laser head assembly, generation away from
From signal；
Temperature sensor, the temperature for detecting the nozzle generate temperature signal；
Control module, for receiving the distance signal and temperature signal；
Digital control system is connected with the control module, receives the distance signal and temperature signal, and according to institute
The temperature signal stated carries out compensated distance to the distance signal received, generates the measurement distance after compensation, and should
Measurement distance after compensation feeds back to the control module, reduce the nozzle that the laser head assembly detects with
The error of the distance between workpieces processing.
Preferably, the laser head assembly further includes laser head, the laser head respectively with the Distance-sensing
Device, temperature sensor and control module are connected, and the control module is using the measurement distance after the compensation as control
The foundation that the system laser head works.
Preferably, the laser head assembly is equipped with laser head shell, the range sensor and temperature sensor are set
In the laser head enclosure, the nozzle is placed in the laser head case head, the nozzle upper structure
The trepanning that thermometric is carried out convenient for the temperature sensor is equipped in part.
Preferably, the range sensor is capacitance type sensor.
Preferably, the temperature sensor is non-contact infrared temperature sensor.
Laser head assembly using the present invention that carry apart from inducing function with temperature-compensating, passes through temperature sensor
The temperature of the acquisition nozzle, temperature signal that the control module acquires the temperature sensor and it is described away from
Distance signal transmission from sensor acquisition is to digital control system, and the digital control system is according to the temperature signal to receiving
The distance signal carry out compensated distance, generate the measurement distance after compensation, and the measurement distance after the compensation is fed back
To the control module, control module goes control laser head to work according to the measurement distance after the compensation.Using the tool
The laser head assembly carried apart from inducing function for having temperature-compensating efficiently solves measurement distance caused by being influenced by temperature and misses
The big problem of difference ensures that laser head steadily efficiently works, and it is simple in structure, cost is relatively low, using effect is good.
Description of the drawings
Fig. 1 is the schematic diagram with the laser head assembly apart from inducing function with temperature-compensating of the present invention.
Fig. 2 is the structural schematic diagram with the laser head assembly apart from inducing function with temperature-compensating of the present invention.
Reference numeral
1 range sensor
2 temperature sensors
3 nozzles
4 laser heads
5 workpieces processings
Specific implementation mode
In order to more clearly describe the technology contents of the present invention, further retouched with reference to specific embodiment
It states.
As shown in FIG. 1, FIG. 1 is the originals with the laser head assembly apart from inducing function with temperature-compensating of the present invention
Reason figure, should be with temperature-compensating with the laser head assembly apart from inducing function, wherein the laser head assembly includes：
Range sensor, for detecting the distance between nozzle and workpieces processing in the laser head assembly, generation away from
From signal；
Temperature sensor, the temperature for detecting the nozzle generate temperature signal；
Control module, for receiving the distance signal and temperature signal；
Digital control system is connected with the control module, receives the distance signal and temperature signal, and according to institute
The temperature signal stated carries out compensated distance to the distance signal received, generates the measurement distance after compensation, and should
Measurement distance after compensation feeds back to the control module, reduce the nozzle that the laser head assembly detects with
The error of the distance between workpieces processing.
In the above-described embodiments, the laser head assembly further includes laser head, the laser head respectively with it is described
Range sensor, temperature sensor and control module are connected, the control module by the measurement after the compensation away from
The foundation to work from the laser head described as control.
In the above-described embodiments, the laser head assembly is equipped with laser head shell, the range sensor and temperature
Sensor is set to the laser head enclosure, and the nozzle is placed in the laser head case head, the nozzle
The trepanning that thermometric is carried out convenient for the temperature sensor is equipped in upper structure part.
In the above-described embodiments, the range sensor is capacitance type sensor.
In the above-described embodiments, the temperature sensor is non-contact infrared temperature sensor.
As shown in Fig. 2, Fig. 2 is the knot with the laser head assembly apart from inducing function with temperature-compensating of the present invention
Structure schematic diagram, in the above-described embodiments, temperature sensor are equipped in the nozzle, the nozzle upper structure part and open
Hole measures convenient for the temperature sensor into trip temperature.
The laser head assembly carried apart from inducing function with temperature-compensating in above-described embodiment, including temperature sensing
Device, range sensor, nozzle and other laser beam modulation head assemblies.Digital control system receives the letter for coming temperature sensor and range sensor
Number, the sensor that can adjust the distance when the temperature is changed has an impact, and digital control system is according to the signal pair of the temperature sensor received
Measured distance carries out error compensation.Ensure that laser head steadily efficiently works.
In above-described embodiment, when mainly solving using capacitance sensor, influence of the temperature to measurement distance, using built-in
Non-contact infrared temperature Sensor monitoring laser head nozzle temperature, digital control system is according to the temperature signal received to capacitance sensor
Ranging carry out error compensation, effectively reduce measurement distance generation error problem.In above-described embodiment, of the invention has
Temperature-compensating is mainly characterized by with the laser head assembly apart from inducing function：Including non-contact infrared temperature sensor,
Range sensor, nozzle and other laser beam modulation head assemblies.Digital control system receives the signal of temperature sensor and range sensor, according to
Nozzle temperature carries out error compensation to measured distance.Digital control system is by actual distance under acquisition different temperatures and temperature to being situated between
The influence of electric constant determines offset.
Compared with prior art, it is to carry out error compensation according to capacity based distance measuring that the present invention, which is proposed with nozzle temperature, is protected
It holds laser head steadily efficiently to work, and uses non-contact infrared temperature sensor so that simple structure, thermometric are precisely steady
It is fixed.
In the above-described embodiments, the master with the laser head assembly apart from inducing function with temperature-compensating of the invention
The feature is wanted to be：
(1) infrared temperature sensor is set to inside laser head, and trepanning is convenient for infrared temperature in nozzle upper structure part
Sensor measures accurate temperature；
(2) range sensor uses condenser type, by the capacitance between nozzle and workpiece come mensuration distance；
(3) when laser head operation, the data detected are constantly transmitted to control by capacitance range sensor and temperature sensor
Device processed, and feed back to digital control system.
(4) capacitance range sensor will receive the high temperature that is generated when cutting operation and influence, and digital control system is according to receiving
Temperature signal carries out error compensation to measured distance, ensures that the distance between nozzle and workpiece is kept constant.
Laser head assembly using the present invention that carry apart from inducing function with temperature-compensating, passes through temperature sensor
The temperature of the acquisition nozzle, temperature signal that the control module acquires the temperature sensor and it is described away from
Distance signal transmission from sensor acquisition is to digital control system, and the digital control system is according to the temperature signal to receiving
The distance signal carry out compensated distance, generate the measurement distance after compensation, and the measurement distance after the compensation is fed back
To the control module, control module goes control laser head to work according to the measurement distance after the compensation.Using the tool
The laser head assembly carried apart from inducing function for having temperature-compensating efficiently solves measurement distance caused by being influenced by temperature and misses
The big problem of difference ensures that laser head steadily efficiently works, and it is simple in structure, cost is relatively low, using effect is good.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrative
And not restrictive.
Claims (5)
1. a kind of laser head assembly carried apart from inducing function with temperature-compensating, which is characterized in that the laser head
Device includes：
Range sensor generates distance letter for detecting the distance between nozzle and workpieces processing in the laser head assembly
Number；
Temperature sensor, the temperature for detecting the nozzle generate temperature signal；
Control module, for receiving the distance signal and temperature signal；
Digital control system is connected with the control module, receives the distance signal and temperature signal, and according to described
Temperature signal carries out compensated distance to the distance signal received, generates the measurement distance after compensation, and by the compensation
Measurement distance afterwards feeds back to the control module, reduces the nozzle and processing that the laser head assembly detects
The error of the distance between workpiece.
2. the laser head assembly according to claim 1 that carry apart from inducing function with temperature-compensating, feature exist
In, the laser head assembly further includes laser head, the laser head respectively with the range sensor, temperature sensor
And control module is connected, the control module is using the measurement distance after the compensation as the laser head described in control
The foundation to work.
3. the laser head assembly according to claim 1 or 2 that carry apart from inducing function with temperature-compensating, feature
It is, the laser head assembly is equipped with laser head shell, the range sensor and temperature sensor and swashs set on described
Bare headed enclosure, the nozzle are placed in the laser head case head, are equipped with just in the nozzle upper structure part
The trepanning of thermometric is carried out in the temperature sensor.
4. the laser head assembly according to claim 1 that carry apart from inducing function with temperature-compensating, feature exist
In the range sensor is capacitance type sensor.
5. the laser head assembly according to claim 1 that carry apart from inducing function with temperature-compensating, feature exist
In the temperature sensor is non-contact infrared temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053747.1A CN108274113A (en) | 2018-01-19 | 2018-01-19 | The laser head assembly carried apart from inducing function with temperature-compensating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053747.1A CN108274113A (en) | 2018-01-19 | 2018-01-19 | The laser head assembly carried apart from inducing function with temperature-compensating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108274113A true CN108274113A (en) | 2018-07-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810053747.1A Pending CN108274113A (en) | 2018-01-19 | 2018-01-19 | The laser head assembly carried apart from inducing function with temperature-compensating |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823283A (en) * | 2019-09-29 | 2020-02-21 | 大族激光科技产业集团股份有限公司 | Capacitance and temperature signal sensor |
| WO2020093620A1 (en) * | 2018-11-07 | 2020-05-14 | 武汉华星光电半导体显示技术有限公司 | Laser cutting device and laser cutting method |
| CN111458719A (en) * | 2020-04-14 | 2020-07-28 | 中国矿业大学(北京) | Method and equipment for high-precision real-time monitoring of rock erosion amount of inner wall of stone cave temple |
| CN112276371A (en) * | 2019-07-09 | 2021-01-29 | 大族激光科技产业集团股份有限公司 | Cutting head follow-up control system and method |
| CN112525060A (en) * | 2020-12-11 | 2021-03-19 | 固高科技(深圳)有限公司 | Distance measuring device, method and system based on temperature compensation and height regulator equipment |
| CN114473230A (en) * | 2021-12-11 | 2022-05-13 | 济南邦德激光股份有限公司 | High-power laser cutting head and temperature detection method and device |
| CN114682925A (en) * | 2020-12-31 | 2022-07-01 | 大族激光科技产业集团股份有限公司 | Device and method for improving precision and stability of capacitive sensor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020093620A1 (en) * | 2018-11-07 | 2020-05-14 | 武汉华星光电半导体显示技术有限公司 | Laser cutting device and laser cutting method |
| CN112276371A (en) * | 2019-07-09 | 2021-01-29 | 大族激光科技产业集团股份有限公司 | Cutting head follow-up control system and method |
| CN110823283A (en) * | 2019-09-29 | 2020-02-21 | 大族激光科技产业集团股份有限公司 | Capacitance and temperature signal sensor |
| CN111458719A (en) * | 2020-04-14 | 2020-07-28 | 中国矿业大学(北京) | Method and equipment for high-precision real-time monitoring of rock erosion amount of inner wall of stone cave temple |
| CN112525060A (en) * | 2020-12-11 | 2021-03-19 | 固高科技(深圳)有限公司 | Distance measuring device, method and system based on temperature compensation and height regulator equipment |
| CN114682925A (en) * | 2020-12-31 | 2022-07-01 | 大族激光科技产业集团股份有限公司 | Device and method for improving precision and stability of capacitive sensor |
| CN114473230A (en) * | 2021-12-11 | 2022-05-13 | 济南邦德激光股份有限公司 | High-power laser cutting head and temperature detection method and device |
| CN114473230B (en) * | 2021-12-11 | 2023-12-19 | 济南邦德激光股份有限公司 | High-power laser cutting head and temperature detection method and equipment |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180713 |
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| RJ01 | Rejection of invention patent application after publication |