CN202119540U - Temperature field real-time monitoring device in laser re-melting process - Google Patents
Temperature field real-time monitoring device in laser re-melting process Download PDFInfo
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- CN202119540U CN202119540U CN201120219863XU CN201120219863U CN202119540U CN 202119540 U CN202119540 U CN 202119540U CN 201120219863X U CN201120219863X U CN 201120219863XU CN 201120219863 U CN201120219863 U CN 201120219863U CN 202119540 U CN202119540 U CN 202119540U
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- time monitoring
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Abstract
The utility model discloses a temperature field real-time monitoring device in a laser re-melting process, relating to the technical field of temperature monitoring in the laser re-melting process. The device comprises a support arranged on a main shaft, wherein an infrared probe used for acquiring temperature information of a laser molten pool and a control box used for processing the temperature information of the infrared probe and provided with a display are arranged on the support, and a control circuit is arranged in the control box. Advantages of the device are that integrated level is high, size is small and cost is low; and with no change to the current mechanical structures of a laser and a numerical control machine tool, the device can be directly arranged at the head of the main shaft for continuously detecting temperature changes in welding process, the traditional mode that temperature is measured point by point and then analysis processing is conducted is replaced, and the device brings substantial convenience for obtaining, analyzing and processing the temperature field in the laser re-melting process.
Description
Technical field
The utility model relates to temperature monitoring technical field in the laser remolten process, specifically is temperature field real-time monitoring device in a kind of laser remolten process.
Background technology
Inevitably produce the molten bath in the laser remolten process; The differentiation in temperature field has determined the heat and mass in the laser molten pool; And then directly had influence on tissue, the performance of shape, coating and the matrix in molten bath, surface quality of part etc., so in the laser remolten process temperature field measurement and detect most important.
The measurement in temperature field generally all is to detect several fixing points through thermoelectricity is occasionally artificial through infrared thermometer in the laser remolten process at present; Carry out analyzing and processing then; Final experimental result has certain error, and can not intuitively reflect the real-time change of temperature in the whole reflow process.
Summary of the invention
In order to solve the shortcoming of above-mentioned prior art, the utility model provides temperature field real-time monitoring device in a kind of laser remolten process, can be in the laser remolten process temperature variation in continuous monitoring molten bath, and show the temperature information in molten bath in real time.
The utility model is realized with following scheme: temperature field real-time monitoring device in a kind of laser remolten process comprises that one is installed in the support on the main shaft; The infrared probe that is used to gather the laser molten pool temperature information is installed on support; The control box that is used to handle the temperature information of infrared probe collection and has display, control box inside is equipped with control circuit.
The beneficial effect of the utility model is: integrated level is high; Volume is little, and cost is low, needn't change the existing machinery structure of laser instrument and numerically-controlled machine; Be directly installed on spindle nose with regard to the temperature variation in the successional detection welding process of ability; Replace pointwise thermometric in the past, the mode of analyzing and processing again, give laser remolten process temperature field obtain and analyzing and processing is brought great convenience.
Description of drawings
Below in conjunction with accompanying drawing and embodiment to the utility model further explain.
Fig. 1 is the utility model structural representation;
Fig. 2 is the infrared probe structural representation;
Fig. 3 is an infrared probe installation site synoptic diagram;
Fig. 4 is the control circuit schematic diagram.
Among the figure: 1, main shaft; 2, infrared probe; 3, laser molten pool; 4, control box; 5, support, 51, the semicircle hoop, 52, boom.
Embodiment
As shown in Figure 1, temperature field real-time monitoring device in a kind of laser remolten process comprises that one is installed in the support 5 on the main shaft; The infrared probe 2 that is used to gather laser molten pool 3 temperature informations is installed on support 5; Be used to handle the control box 4 of the temperature information that infrared probe gathers, control box 4 inside are equipped with control circuit.
As shown in Figure 2, described infrared probe 2 is made up of lens 21, optical filter 22, chopper wheel 23, temperature compensation sensor 24, photoelectric sensor 25 and motor 26.Because the temperature of laser remolten process generally all is the above high temperature of hundreds of degree, using wavelength is the near infrared light in 0.75～3um scope, so lens material is generally optical glass and quartz etc.Motor work drives the chopper wheel rotation; Tested infrared radiation is modulated into the infrared radiation of alternation; Infrared temperature measurement apparatus can be transformed to electric signal through photoelectric sensor with far infrared radiation; Export to the thermometric analysis module and handle, the simultaneous temperature compensation sensor also is fixed on and is used for detection signal in the infrared probe.
As shown in Figure 3, described infrared probe 2 has two, and one of them is the main infrared probe that is used for the molten bath is carried out point by point scanning sampling, and another is the auxiliary infrared probe that the sample information to main infrared probe compensates; Two infrared probes 2 are on the same surface level.Main infrared probe and auxiliary infrared probe will be in same surface level, and extended line will be over against laser molten pool, and guarantee adjustable positions, to guarantee the accurate measurement of temperature.
Described support 5 comprises the semicircle hoop 51 of two symmetries, and a boom 52 is installed on 51 on each semicircle hoop; An infrared probe 2 is installed in the bottom of each boom 52.
As shown in Figure 4, described control circuit comprises a central controller, the thermometric analysis mould module, display, data memory module, communication module and the power module that are connected with central controller respectively.
The thermometric analysis module: with the information that two infrared probes transmit amplify, filtering, temperature compensation handles, A/D transforms, thereby produces the acceptable Transistor-Transistor Logic level pulse of central processing unit.
Central controller: the core position of whole device, mainly carry out the data computing analyzing and processing relatively, the thetagram of the final output of decision.
Display: the temperature value and the temperature changing curve diagram that are used to show whole process.
Data memory module: be used to store the data of whole process, carry out data backup.
Communication module: directly link to each other with PC, through PC can carry out more comprehensively, more carefully, more deep analyzing and processing work.
Power module: power supply is provided for above each module.
Described thermometric analysis module comprises amplifying unit; The filter unit that is connected with amplifying unit; The synchronous detection unit that is connected with filter unit, the multivibrator that is connected with synchronous detection unit, the totalizer that is connected with synchronous detection unit; The A/D converter that is connected with totalizer, the temperature compensation unit that is connected with totalizer; Described temperature compensation unit is connected with temperature compensation sensor in the infrared probe, and described amplifying unit is connected with photoelectric sensor in the infrared probe.Amplifying unit is to select for use integrated transporting discharging as analogue amplifier; And amplifier works in the linear amplification district; There is relation one to one between the output of circuit and the input; Feedback signal is delivered to input end through feedback resistance, promptly utilizes the variable quantity of voltage itself through feedback network amplifying circuit to be played automatic corrective action, finally reaches to amplify the also effect of regulated output voltage; The active filter that filter unit adopts integrated transporting discharging to form is made up of two joint RC filtering circuits and anti-phase ratio amplifying circuit, and the input impedance of open-loop voltage gain is very high, and output impedance is lower, and has certain voltage amplification and buffering effect; Temperature compensation unit adopts the diode temperature compensating circuit, and when utilizing semiconductor to receive the stimulation of extraneous light and heat, its marked change will take place its electric conductivity, with the temperature compensation signal of diode through differential amplification with the compensate for ambient Influence of Temperature.Remaining element also all is more common circuit.
The course of work: this device is directly installed on main shaft 1 head; Utilize main infrared probe that laser molten pool 3 is carried out the point by point scanning sampling, auxiliary simultaneously infrared probe compensates the sample information of main infrared probe, reduces the generation of error; After all passing through information processings such as the amplification of thermometric analysis module, filtering, temperature compensation, A/D conversion, the signal that two infrared probes are measured is sent to central processing unit; After the central processing unit computational analysis, can on display, show through the form of image, and data are sent into the memory module backup, the laboratory technician can clearly observe temperature variation in the laser remolten process through display; Being convenient to the staff reads; Replace pointwise thermometric in the past, the mode of analyzing and processing again, give temperature field in the laser remolten process obtain and analyzing and processing is brought great convenience.
In experiment is carried out or after the experiment, can both link to each other with PC through communication module and process just now observed, fixes a point operations such as analysiss, analysis of temperature field processing repeatedly, ability better, and is faster, draws the temperature field result more accurately.
Claims (6)
1. temperature field real-time monitoring device in the laser remolten process is characterized in that: comprise that one is installed in the support (5) on the main shaft; The infrared probe (2) that is used to gather the laser molten pool temperature information is installed on support (5); Be used to the control box (4) handling the temperature information of infrared probe collection and have display, control box (4) inside is equipped with control circuit.
2. temperature field real-time monitoring device in the laser remolten process according to claim 1 is characterized in that: described infrared probe (2) is made up of lens (21), optical filter (22), chopper wheel (23), temperature compensation sensor (24), photoelectric sensor (25) and motor (26).
3. temperature field real-time monitoring device in the laser remolten process according to claim 1 and 2; It is characterized in that: described infrared probe (2) has two; One of them is the main infrared probe that is used for the molten bath is carried out point by point scanning sampling, and another is the auxiliary infrared probe that the sample information to main infrared probe compensates; Two infrared probes (2) are on the same surface level.
4. temperature field real-time monitoring device in the laser remolten process according to claim 3 is characterized in that: described support (5) comprises the semicircle hoop (51) of two symmetries, and (51) are gone up a boom (52) is installed on each semicircle hoop; An infrared probe (2) is installed in the bottom of each boom (52).
5. temperature field real-time monitoring device in the laser remolten process according to claim 1; It is characterized in that: described control circuit comprises a central controller, the thermometric analysis mould display, data memory module, communication module and the power module that are connected with central controller respectively.
6. temperature field real-time monitoring device in the laser remolten process according to claim 5; It is characterized in that: described thermometric analysis module comprises amplifying unit, the filter unit that is connected with amplifying unit, the synchronous detection unit that is connected with filter unit; The multivibrator that is connected with synchronous detection unit; The totalizer that is connected with synchronous detection unit, the A/D converter that is connected with totalizer, the temperature compensation unit that is connected with totalizer; Described temperature compensation unit is connected with temperature compensation sensor in the infrared probe, and described amplifying unit is connected with photoelectric sensor in the infrared probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120219863XU CN202119540U (en) | 2011-06-27 | 2011-06-27 | Temperature field real-time monitoring device in laser re-melting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120219863XU CN202119540U (en) | 2011-06-27 | 2011-06-27 | Temperature field real-time monitoring device in laser re-melting process |
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| Publication Number | Publication Date |
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| CN202119540U true CN202119540U (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120219863XU Expired - Fee Related CN202119540U (en) | 2011-06-27 | 2011-06-27 | Temperature field real-time monitoring device in laser re-melting process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794565A (en) * | 2012-09-04 | 2012-11-28 | 徐州工程学院 | LabView-based real-time monitoring system for laser cladding/laser re-melting process temperature field |
| CN115383516A (en) * | 2022-10-26 | 2022-11-25 | 合肥合锻智能制造股份有限公司 | Cutter damage degree detection device of digit control machine tool |
-
2011
- 2011-06-27 CN CN201120219863XU patent/CN202119540U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794565A (en) * | 2012-09-04 | 2012-11-28 | 徐州工程学院 | LabView-based real-time monitoring system for laser cladding/laser re-melting process temperature field |
| CN102794565B (en) * | 2012-09-04 | 2015-01-21 | 徐州工程学院 | LabView-based real-time monitoring system for laser cladding/laser re-melting process temperature field |
| CN115383516A (en) * | 2022-10-26 | 2022-11-25 | 合肥合锻智能制造股份有限公司 | Cutter damage degree detection device of digit control machine tool |
| CN115383516B (en) * | 2022-10-26 | 2023-01-10 | 合肥合锻智能制造股份有限公司 | Cutter damage degree detection device of digit control machine tool |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20120627 |