CN116183497A - Spectrum diagnosis device suitable for welding in narrow space and micro-area plasma - Google Patents

Spectrum diagnosis device suitable for welding in narrow space and micro-area plasma Download PDF

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Publication number
CN116183497A
CN116183497A CN202310115960.1A CN202310115960A CN116183497A CN 116183497 A CN116183497 A CN 116183497A CN 202310115960 A CN202310115960 A CN 202310115960A CN 116183497 A CN116183497 A CN 116183497A
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China
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plasma
fixing
cabin
welding
micro
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CN202310115960.1A
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Chinese (zh)
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蔡创
余杰
刘永洪
谢佳
黄嘉森
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Southwest Jiaotong University
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Southwest Jiaotong University
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Priority to CN202310115960.1A priority Critical patent/CN116183497A/en
Publication of CN116183497A publication Critical patent/CN116183497A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/10—Nuclear fusion reactors

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

The utility model provides a spectrum diagnosis device suitable for narrow and small space welding and micro-region plasma, includes plasma collection device, three-dimensional mobile device and fixed bolster, and plasma collection device includes plasma collection pipeline, umbrella end safety cover, is arranged in the spectrometer probe fixed cabin of plasma collection pipeline rear end, sets up in the plasma collection pipeline for the protection lens of protection spectrometer probe and the gas delivery cabin that carries gas to plasma collection pipeline; the three-dimensional moving device is used for installing the plasma collecting device and realizing the movement of the plasma collecting device in a three-dimensional space; the fixing support is used for fixing the three-dimensional moving device on the welding robot and adjusting the position and the angle of the three-dimensional moving device relative to the welding robot. The spectrum diagnosis device can avoid the influence of welding smoke dust on plasma acquisition and the damage of welding spatter to the spectrometer probe, and realize the plasma detection in a narrow space and in a micro-region.

Description

Spectrum diagnosis device suitable for welding in narrow space and micro-area plasma
Technical Field
The invention relates to a spectrum diagnosis device, in particular to a spectrum diagnosis device suitable for welding in a narrow space and micro-area plasma.
Background
The spectrum diagnosis, that is, the spectrum analysis method, obtains the information such as the plasma electron density, the temperature and the like by detecting the information such as the plasma spectrum intensity, the profile and the like. The spectrum analysis method belongs to indirect measurement, does not influence plasma, and has rich information. In the welding field, plasma plume analysis, welding quality spectrum monitoring, interaction spectrum analysis among composite welding heat sources and the like can be performed. When welding special-shaped pieces or welding in a narrow space, the spectrometer probe cannot directly penetrate into the narrow space due to space limitation, so that plasma information cannot be acquired or the acquisition accuracy is insufficient.
In the existing spectrum diagnosis method, a spectrometer probe is directly directed to a welding position, a plasma spectrum signal of the whole welding position is collected, the obtained spectrum signal reflects the change of an integral plasma physical signal, the change of a plasma in a certain micro area cannot be reflected, and the acquisition accuracy cannot be ensured due to the influence of welding smoke dust and splash. When welding in a narrow space, the probe cannot penetrate into the narrow space, so that the acquisition precision is influenced, and micro-area plasma cannot be realized. In actual welding, the plasma density and the temperature of different micro areas are different, and particularly in swing laser-electric arc hybrid welding, when a light beam swings to different positions, the plasma density also changes. Therefore, it is necessary to find a spectroscopic diagnostic device suitable for welding in a narrow space and for micro-area plasma.
Disclosure of Invention
The invention aims to solve the problem that the prior art cannot acquire the spectrum information of welding and micro-area plasma in a narrow space, and provides a spectrum diagnosis device suitable for welding and micro-area plasma in the narrow space.
The technical scheme adopted by the invention for achieving the aim of the invention is as follows: a spectrum diagnosis device suitable for welding in a narrow space and micro-area plasma comprises a plasma acquisition device, a three-dimensional moving device and a fixed bracket;
the plasma acquisition device comprises a plasma collection pipeline, an umbrella end protective cover, a spectrometer probe fixing cabin arranged at the rear end of the plasma collection pipeline, a protective lens arranged in the plasma collection pipeline and used for protecting a spectrometer probe, and a gas delivery cabin arranged between the spectrometer probe fixing cabin and the umbrella end protective cover and capable of delivering gas to the plasma collection pipeline;
the air supply cabin is wrapped outside the plasma collecting pipeline, and the plasma collecting pipeline wrapped by the air supply cabin is provided with a vent hole for sending the air of the air supply cabin into the plasma collecting pipeline;
the three-dimensional moving device is used for installing the plasma collecting device and realizing the movement of the plasma collecting device in a three-dimensional space;
the fixing support is used for fixing the three-dimensional moving device on the welding robot and adjusting the position and the angle of the three-dimensional moving device relative to the welding robot.
The method for realizing spectrum diagnosis by the spectrum diagnosis device comprises the following steps: the spectrometer probe is fixed in a spectrometer probe fixing cabin of the plasma collecting device, the plasma collecting device is arranged on the three-dimensional moving device, then the three-dimensional moving device is fixed on the welding robot, and the position of the three-dimensional moving device relative to the welding robot is adjusted, so that a plasma collecting pipeline of the plasma collecting device is positioned at a proper angle and position. Ventilating the plasma collecting pipeline through the gas delivery cabin, and controlling the gas flow in a proper range so as not to influence welding plasma; placing a plasma collecting pipeline at a position to be welded in a narrow space to collect plasma signals for welding in the narrow space; the plasma collecting pipeline points to a certain area of the plasma, and the detection area is adjusted by adjusting the three-dimensional moving device in the collecting process.
Compared with the prior art, the invention has the beneficial effects that:
1. the spectrum diagnosis device is provided with the gas delivery cabin, the gas delivery cabin enters the plasma collecting pipeline through the vent hole on the plasma collecting pipeline to complete coaxial gas delivery, smoke dust at the end part of the spectrum collecting device is removed, interference of the smoke dust on spectrum collection is avoided, collection precision is guaranteed, the gas delivery cabin is used for buffering gas flow, and after the gas delivery cabin passes through, the flow speed of the gas delivered is slower, so that the influence on plasma is further reduced.
2. The spectrum diagnosis device is provided with the umbrella end protective cover and the protective lens, so that the internal structures of the plasma acquisition device such as the spectrometer probe, the gas delivery cabin, the protective lens, the spectrometer probe fixing cabin and the like can be prevented from being damaged by splashes generated during welding.
3. The spectrum diagnosis device is provided with the spectrometer probe fixing cabin, and can be used for positioning spectrometer probes of different types.
4. The plasma collecting pipeline of the spectrum diagnosis device can select the length and thickness according to the welding condition, and can go deep into the narrow space for spectrum diagnosis when welding in the narrow space.
5. The spectrum diagnosis device is provided with the three-dimensional moving device, can realize the movement of the plasma acquisition device in the three-dimensional space, and is used for acquiring plasma signals of different micro areas.
Further, the plasma collecting pipeline is positioned at the center axis of the umbrella end protective cover.
Furthermore, two umbrella end protection covers are arranged at the front end of the spectrometer probe fixing cabin, the umbrella end protection cover at the forefront end is denoted as an umbrella end protection cover I, and the umbrella end protection cover between the umbrella end protection cover I and the spectrometer probe fixing cabin is denoted as an umbrella end protection cover II; the air supply cabin is arranged on the inner side of the first umbrella end protection cover, and the protection lens is arranged on the inner side of the second umbrella end protection cover.
The two umbrella end protection covers are arranged, so that on one hand, the inner structures of plasma collecting devices such as the spectrometer probe, the gas delivery cabin, the protection lens and the spectrometer probe fixing cabin can be better prevented from splashing, the gas delivery cabin and the protection lens can be conveniently installed, and the whole structure is more coordinated and stable.
Still further, the air supply cabin comprises an air supply cabin body with external threads and an air cabin cover with internal threads, wherein the air supply cabin body is arranged on the inner side of the umbrella end protection cover, and the air cabin cover is provided with a through hole capable of penetrating through a plasma collecting pipeline and an air pipe connector for connecting an air pipe.
The gas enters the gas delivery cabin from the gas pipe joint, and then enters the plasma collection pipeline from the gas delivery cabin through the vent hole on the plasma collection pipeline to complete coaxial gas delivery.
Still further, the spectrometer probe fixing cabin comprises a fixing cabin body, the front end of the fixing cabin body is provided with spectrometer probe clamping grooves capable of fixing the front ends of the spectrometer probes in different sizes, the rear end of the fixing cabin body is provided with a fixing cabin body cover, a fixing rod arranged on the fixing cabin body cover through a butterfly nut and a rubber pad at the front end of the fixing rod, and the axial position of the fixing rod is adjusted through the butterfly nut, so that the rubber pad presses the rear end of the spectrometer probe.
Further, the three-dimensional moving device comprises a moving table and an adjusting device with a micrometer, wherein the position of the moving table in the X, Y, Z direction can be adjusted, the plasma collecting device is arranged on the moving table, the position of the moving table is adjusted through the adjusting device, the movement of the plasma collecting device in a three-dimensional space can be realized, and plasma signals of different micro areas can be collected.
The regulating device of the three-dimensional moving device is provided with a micrometer, the movement precision can reach 0.01mm, the plasma collecting area of the plasma collecting device can be accurately regulated, and the collection of plasma signals in different micro areas is realized.
Further, the specific mode of the plasma acquisition device of the invention installed on the mobile station is as follows: the mobile station is fixedly provided with a triangular clamping groove, the triangular clamping groove comprises a triangular clamping groove base, a locking sleeve and locking screws arranged on the side face of the locking sleeve, a spectrometer probe fixing cabin part of the plasma collecting device is arranged between the triangular clamping groove base and the locking sleeve, and the locking screws are rotated to enable the locking screws to be pressed against the outer wall of the spectrometer probe fixing cabin, so that the plasma collecting device is fixed.
Further, the fixing support comprises a first-stage supporting rod, a second-stage supporting rod, a connecting block capable of moving along the axial direction of the first-stage supporting rod, a first fixing block, a second fixing block capable of moving along the axial direction of the second-stage supporting rod and a third fixing block; the connecting block is fixedly connected with the welding robot, the first fixing block is rotatably connected with the second fixing block, and the third fixing block is fixedly connected with the three-dimensional moving device.
Therefore, the position and the angle of the three-dimensional moving device can be conveniently adjusted through the fixed support, the position and the angle of the plasma collecting device can be further adjusted, and the three-dimensional moving device is assisted to collect plasma when welding at different positions and angles.
The present invention will be described in further detail with reference to the following detailed description and the accompanying drawings.
Drawings
Fig. 1 is a schematic front view of a plasma collecting apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of A-A side of a front view of a plasma acquisition device according to an embodiment of the present invention.
Fig. 3 is a schematic side view of a plasma collecting apparatus according to an embodiment of the present invention.
Fig. 4 is a schematic three-dimensional structure of a spectroscopic diagnostic device according to an embodiment of the present invention.
In the figure, 1 is a plasma collecting pipeline, 2 is an air delivery cabin, 3 is a spectrometer probe fixing cabin, 4 is an air pipe joint, 5 is a spectrometer probe, 6 is an umbrella end protection cover I, 7 is a protection lens, 8 is an umbrella end protection cover II, 9 is a rubber pad, 10 is a fixing rod, 11 is a fixing cabin cover, 12 is a butterfly nut, 13 is a connecting block, 14 is a fixing block I, 15 is a primary supporting rod, 16 is a secondary supporting rod, 17 is a fixing block II, 18 is a locking sleeve, 19 is a locking screw, 20 is a triangular clamping groove base, 21 is a three-dimensional moving device, 22 is a fixing block III, and 23 micrometers.
Detailed Description
Examples
Fig. 4 is a schematic three-dimensional structure diagram of a spectrum diagnosis apparatus according to an embodiment, as shown in fig. 4, the spectrum diagnosis apparatus includes a plasma collecting device, a three-dimensional moving device 21 and a fixed support, and the structure characteristics are that:
the plasma collecting device comprises a plasma collecting pipeline 1, an umbrella end protecting cover, a spectrometer probe fixing cabin 3 arranged at the rear end of the plasma collecting pipeline 1, a protecting lens 7 arranged in the plasma collecting pipeline 1 and used for protecting a spectrometer probe 5, and an air supply cabin 2 arranged between the spectrometer probe fixing cabin 3 and the umbrella end protecting cover and used for conveying air to the plasma collecting pipeline 1;
the air supply cabin 2 is wrapped on the outer side of the plasma collecting pipeline 1, and a vent hole is formed in the plasma collecting pipeline 1 wrapped by the air supply cabin 2 and used for feeding the air of the air supply cabin 2 into the plasma collecting pipeline 1;
the three-dimensional moving device 21 is used for installing a plasma collecting device and realizing the movement of the plasma collecting device in a three-dimensional space;
the fixing bracket is used for fixing the three-dimensional moving device 21 on the welding robot and adjusting the position and angle of the three-dimensional moving device 21 relative to the welding robot.
In this embodiment, the plasma collecting pipe 1 is located at the center axis of the umbrella end protecting cover.
The two umbrella end protection covers are uniformly distributed at the front end of the spectrometer probe fixing cabin 3, the umbrella end protection cover at the forefront end is marked as an umbrella end protection cover I6, and the umbrella end protection cover between the umbrella end protection cover I6 and the spectrometer probe fixing cabin 3 is marked as an umbrella end protection cover II 8; the air supply cabin 2 is arranged on the inner side of the first umbrella end protection cover 6, and the protection lens 7 is arranged on the inner side of the second umbrella end protection cover 8. In this case, through the locating pin location between two umbrella end safety covers and between umbrella end safety cover and the spectrometer probe fixed cabin, specifically including the processing of interior survey of umbrella end safety cover one have the locating pin, the locating hole has been processed respectively to the inside and outside of umbrella end safety cover two, and the processing of spectrometer probe fixed cabin outside has the locating hole, and umbrella end safety cover one, umbrella end safety cover two, spectrometer probe fixed cabin loop through locating hole, locating pin connection, guarantee plasma collection device axiality.
The air supply cabin 2 in this embodiment comprises an air supply cabin 2 body with external threads and an air cabin cover with internal threads, which are arranged on the inner side of an umbrella end protecting cover, and the air cabin cover is provided with a through hole capable of penetrating through the plasma collecting pipeline 1 and an air pipe connector 4 for connecting an air pipe.
The spectrometer probe fixing cabin 3 comprises a fixing cabin body, spectrometer probe clamping grooves capable of fixing the front ends of spectrometer probes of different sizes are formed in the front end of the fixing cabin body, a fixing cabin body cover 11 is arranged at the rear end of the fixing cabin body, a fixing rod 10 and a rubber pad 9 are arranged on the fixing cabin body cover 11 through a butterfly nut 12, the axial position of the fixing rod 10 is adjusted through the butterfly nut 12, and therefore the rubber pad 9 is pressed against the rear end of the spectrometer probe.
Fig. 1 is a schematic front view of a plasma collecting apparatus according to the present embodiment. FIG. 2 is a schematic view of the cross-section of the plane A-A of FIG. 1, that is, a schematic view of the cross-section of the plane A-A of the front view structure of the plasma collecting apparatus of the present embodiment. Fig. 3 is a schematic side view of the plasma collecting apparatus according to the present embodiment.
The three-dimensional moving device 21 in this embodiment includes a moving table and an adjusting device with a micrometer 23 for adjusting the position of the moving table in the direction X, Y, Z, the plasma collecting device is mounted on the moving table, and the moving of the plasma collecting device in the three-dimensional space can be realized by adjusting the position of the moving table by the adjusting device, so as to collect the plasma signals of different micro areas.
The specific way of installing the plasma collecting device on the mobile station in this embodiment is as follows: the mobile station is fixedly provided with a triangular clamping groove, the triangular clamping groove comprises a triangular clamping groove base 20, a locking sleeve 18 and a locking screw 19 arranged on the side face of the locking sleeve 18, a spectrometer probe fixing cabin 3 of the plasma collecting device is partially arranged between the triangular clamping groove base 20 and the locking sleeve 18, and the locking screw 19 is rotated to enable the locking screw 19 to press the outer wall of the spectrometer probe fixing cabin 3, so that the plasma collecting device is fixed.
The fixing support comprises a first-stage supporting rod 15, a second-stage supporting rod 16, a connecting block 13 and a first fixing block 14 which can axially move along the first-stage supporting rod 15, and a second fixing block 17 and a third fixing block 22 which can axially move along the second-stage supporting rod 16; the connecting block 13 is fixedly connected with the welding robot, the first fixed block 14 is rotatably connected with the second fixed block 17, and the third fixed block 22 is fixedly connected with the three-dimensional moving device 21.

Claims (8)

1. The utility model provides a spectral diagnosis device suitable for narrow and small space welding and microcell plasma, includes plasma collection system, three-dimensional mobile device and fixed bolster, its characterized in that:
the plasma acquisition device comprises a plasma collection pipeline, an umbrella end protective cover, a spectrometer probe fixing cabin arranged at the rear end of the plasma collection pipeline, a protective lens arranged in the plasma collection pipeline and used for protecting a spectrometer probe, and a gas delivery cabin arranged between the spectrometer probe fixing cabin and the umbrella end protective cover and capable of delivering gas to the plasma collection pipeline;
the air supply cabin is wrapped outside the plasma collecting pipeline, and the plasma collecting pipeline wrapped by the air supply cabin is provided with a vent hole for supplying the air of the air supply cabin into the plasma collecting pipeline;
the three-dimensional moving device is used for installing the plasma collecting device and realizing the movement of the plasma collecting device in a three-dimensional space;
the fixing support is used for fixing the three-dimensional moving device on the welding robot and adjusting the position and the angle of the three-dimensional moving device relative to the welding robot.
2. A spectroscopic diagnostic device for welding and micro-area plasma in a confined space as claimed in claim 1 wherein: the plasma collecting pipeline is positioned at the center shaft position of the umbrella end protective cover.
3. A spectroscopic diagnostic device for welding and micro-area plasma in a confined space as claimed in claim 2 wherein: the two umbrella end protection covers are uniformly distributed at the front end of the spectrometer probe fixing cabin, the umbrella end protection cover at the forefront end is marked as an umbrella end protection cover I, and the umbrella end protection cover between the umbrella end protection cover I and the spectrometer probe fixing cabin is marked as an umbrella end protection cover II; the air supply cabin is arranged on the inner side of the first umbrella end protection cover, and the protection lens is arranged on the inner side of the second umbrella end protection cover.
4. A spectroscopic diagnostic device for welding and micro-area plasma in a confined space as claimed in claim 2 wherein: the air supply cabin comprises an air supply cabin body with external threads and an air cabin cover with internal threads, wherein the air supply cabin body is arranged on the inner side of the umbrella end protection cover, and the air cabin cover is provided with a through hole capable of penetrating through the plasma collecting pipeline and an air pipe connector for connecting an air pipe.
5. A spectroscopic diagnostic device for welding and micro-area plasma in a confined space as claimed in claim 2 wherein: the spectrometer probe fixing cabin comprises a fixing cabin body, the front end of the fixing cabin body is provided with spectrometer probe clamping grooves capable of fixing the front ends of spectrometer probes of different sizes, the rear end of the fixing cabin body is provided with a fixing cabin body cover, a fixing rod arranged on the fixing cabin body cover through a butterfly nut and a rubber pad arranged at the front end of the fixing rod, and the axial position of the fixing rod is adjusted through the butterfly nut, so that the rubber pad compresses the rear end of the spectrometer probe.
6. A spectroscopic diagnostic device for welding and micro-area plasma in a confined space as claimed in claim 1 wherein: the three-dimensional moving device comprises a moving table and an adjusting device with a micrometer, wherein the position of the moving table in the X, Y, Z direction can be adjusted, the plasma collecting device is arranged on the moving table, the position of the moving table is adjusted through the adjusting device, the movement of the plasma collecting device in a three-dimensional space can be realized, and plasma signals of different micro areas can be collected.
7. A spectroscopic diagnostic device for welding and micro-area plasma in a confined space as claimed in claim 1 wherein: the specific mode of installing the plasma acquisition device on the mobile station is as follows: the mobile station is fixedly provided with a triangular clamping groove, the triangular clamping groove comprises a triangular clamping groove base, a locking sleeve and locking screws arranged on the side face of the locking sleeve, a spectrometer probe fixing cabin part of the plasma collecting device is arranged between the triangular clamping groove base and the locking sleeve, and the locking screws are rotated to enable the locking screws to be pressed against the outer wall of the spectrometer probe fixing cabin, so that the plasma collecting device is fixed.
8. A spectroscopic diagnostic device for welding and micro-area plasma in a confined space as claimed in claim 1 wherein: the fixing support comprises a first-stage supporting rod, a second-stage supporting rod, a connecting block and a first fixing block which can axially move along the first-stage supporting rod, and a second fixing block and a third fixing block which can axially move along the second-stage supporting rod; the connecting block is fixedly connected with the welding robot, the first fixing block is rotatably connected with the second fixing block, and the third fixing block is fixedly connected with the three-dimensional moving device.
CN202310115960.1A 2023-02-15 2023-02-15 Spectrum diagnosis device suitable for welding in narrow space and micro-area plasma Pending CN116183497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310115960.1A CN116183497A (en) 2023-02-15 2023-02-15 Spectrum diagnosis device suitable for welding in narrow space and micro-area plasma

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310115960.1A CN116183497A (en) 2023-02-15 2023-02-15 Spectrum diagnosis device suitable for welding in narrow space and micro-area plasma

Publications (1)

Publication Number Publication Date
CN116183497A true CN116183497A (en) 2023-05-30

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Application Number Title Priority Date Filing Date
CN202310115960.1A Pending CN116183497A (en) 2023-02-15 2023-02-15 Spectrum diagnosis device suitable for welding in narrow space and micro-area plasma

Country Status (1)

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