CN104568161A - Adjustable fixture for fixing lens of temperature measurement device, and temperature measurement device - Google Patents
Adjustable fixture for fixing lens of temperature measurement device, and temperature measurement device Download PDFInfo
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- CN104568161A CN104568161A CN201410833629.4A CN201410833629A CN104568161A CN 104568161 A CN104568161 A CN 104568161A CN 201410833629 A CN201410833629 A CN 201410833629A CN 104568161 A CN104568161 A CN 104568161A
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- camera lens
- temperature measuring
- measuring equipment
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Abstract
The invention relates to an adjustable fixture for fixing a lens of a temperature measurement device. The adjustable fixture comprises a fixing structure, a first plate, a second plate and a support structure, wherein the fixing structure is provided with a matching hole which penetrates through the fixing structure and is used for fixing the lens; a first hole and a second hole with a spacing of a are formed on any side, relative to a penetrating direction of the matching hole, of the fixing structure; a connecting hole and an arc groove are formed in the first plate; the arc groove takes the center of the connecting hole as the circle center and the length a as the set radian of the radius; the first hole is movably connected with the connecting hole; the second hole is matched with the arc groove; the first plate is connected with the second plate at a set angle; a linear guide groove is formed in the second plate; at least two third holes matched with the linear guide groove are formed in the support structure; and structures which penetrate through the linear guide groove and can obstruct the second plate are arranged in the third holes. The invention further relates to the temperature measurement device of the adjustable fixture. According to the adjustable fixture and the temperature measurement device, an adjustment range of the fixture is expanded; the adjustment accuracy is improved; and the adjustable fixture is simple in structure and easy to mount, and can be conveniently arranged on various temperature measurement occasions.
Description
Technical field
The present invention relates to a kind of flexible jig, be specifically related to a kind of flexible jig for fixing temperature measuring equipment camera lens.The present invention relates to the temperature measuring equipment of aforementioned flexible jig simultaneously.
Background technology
Along with the progress of technology, non-contact temperature measuring device gets more and more.For high temperature, perishable or other special thermometric occasions that cannot directly contact, non-contact temperature measuring device is primary selection.
Applying wider is exactly infrared temperature measurement apparatus.Infrared temperature measurement apparatus has that precision is high, sensing range is large, the corresponding time is fast and use safety etc. has advantage.
Infrared temperature measurement apparatus generally include collect radiation information camera lens, optical information is converted to the conversion equipment of temperature and the connecting line being connected this conversion equipment and camera lens.
Above three can become one by portable infrared temperature measurement apparatus, and is provided with the display screen of displays temperature.Such as, infrared thermometer.
And for industrial occasions such as high temperature, be convenient test, three separates often.Conversion equipment also comprises the output terminal of output temperature signal usually.This output terminal can connect corresponding control system, and the temperature recorded is transferred to control system.
When temperature survey, by region to be measured for device alignment lens.But for the tested object of small volume, whether camera lens can align with test target comparatively accurately, has a great impact test result and testing efficiency.Therefore very high requirement is had to the fixture of clamping, fixed lens.
What present infrared temperature measurement apparatus had carries corresponding fixture, but all too simple, there is a lot of limitation.
First, existing fixture majority can only single-degree-of-freedom regulate, and adjustable extent is little, and this just have impact on temperature-measuring range.
Secondly, for off-limits test, need to reinstall fixture, and due to reasons in structure, can only be fixedly mounted on ad hoc structure, have impact on the adaptability of temperature measuring equipment to environment.
Again, fixture regulate and location more difficult, and positioning precision is not high.
Summary of the invention
The present invention will solve that prior art adjustable extent is little, positioning action is complicated, positioning precision is low and problem to environmental suitability difference, provides a kind of flexible jig for fixing temperature measuring equipment camera lens, and comprises the temperature measuring equipment of aforementioned flexible jig.
A kind of flexible jig for fixing temperature measuring equipment camera lens provided by the invention, comprises fixed sturcture, the first plate, the second plate and supporting construction, and described fixed sturcture is provided with this fixed sturcture through and for the mating holes of fixing temperature measuring equipment camera lens;
Described fixed sturcture is provided with relative to any side in the through direction of mating holes the first hole and the second hole that spacing is a;
Described first plate is provided with connecting hole and with this connecting hole center be the center of circle, with the arc groove of the length a setting radian that is radius, described connecting hole and arc groove are all along equidirectional this first plate through;
Be fixedly installed first coupling shaft coaxial with the first hole in described first hole, and this first coupling shaft is connected with connecting hole is movable;
Second coupling shaft coaxial with this second hole is connected with in described second hole, this the second connection central siphon is by this arc groove, described second coupling shaft is being provided with the first lug boss stopping this first plate away from the side of described fixed sturcture relative to described first plate, described second coupling shaft is provided with helicitic texture, and described first lug boss rotates the distance regulated apart from described first plate around this second axially bored line;
Described first plate becomes set angle to be connected with described second plate, described second plate offers the line channel of this second plate through, and the development length of described line channel is b;
Described supporting construction is provided with conllinear and total spacing is less than at least two the 3rd holes of b, three coupling shaft coaxial with corresponding 3rd hole is connected with in described 3rd hole, the through described line channel of described 3rd coupling shaft and the side in the 3rd hole is being provided with second lug boss that can stop described second plate relative to the second plate, described 3rd coupling shaft is provided with helicitic texture, and described second lug boss rotates the distance regulated apart from described second plate around the 3rd axially bored line;
This supporting construction is also provided with the mounting structure this supporting construction being fixed on other structures.
Optionally, described second plate is fixedly connected with by micromatic setting with described first plate, and the action direction of this micromatic setting is parallel with the bearing of trend of described line channel.
Optionally, described first plate is provided with the web joint coordinated with described micromatic setting.
Optionally, described first plate is vertical with described second plate.
Optionally, the more described arc groove of described connecting hole is away from described second plate.
Optionally, described supporting construction comprises into the 3rd plate and the 4th plate that set angle is fixedly connected with, and described 3rd plate is provided with the 3rd hole, and described mounting structure is the through hole coordinated with respective bolt.
Optionally, described fixed sturcture is provided with through slot relative to the side in the through direction of mating holes, this through slot communicates with mating holes, and the fixed sturcture of relevant position being divided into relative, that have setting spacing the first clamping section and the second clamping section, described first clamping section and described second clamping section are connected by screw element and change the spacing of this first clamping section and the second clamping section by the rotation of this screw element.
Optionally, comprise sleeve, described sleeve periphery has the profile coordinated with described mating holes, and center has the cavity of accommodating camera lens.
Optionally, described first hole, the second hole and the 3rd hole are the threaded hole being provided with respective bolt.
Optionally, described 3rd hole is two.
The present invention also provides a kind of temperature measuring equipment simultaneously, comprises a kind of flexible jig for fixing temperature measuring equipment camera lens of above-mentioned any technical characteristic.
Compared with prior art, the present invention has the following advantages:
First, a kind of flexible jig for fixing temperature measuring equipment camera lens provided by the invention is that two-freedom regulates, and adds adjustable extent;
Secondly, of the present invention a kind of simple and changeability is strong for supporting construction in the flexible jig of fixing temperature measuring equipment camera lens, installation is easier to, can from different anatomical connectivity, conveniently adapts to various thermometric occasion;
Again, the invention provides the simple to operate of a kind of flexible jig for fixing temperature measuring equipment camera lens, Adjustment precision is high.
Accompanying drawing explanation
Fig. 1 is the first stereographic map of a kind of embodiment of a kind of flexible jig for fixing temperature measuring equipment camera lens provided by the invention;
Fig. 2 is the second stereographic map of a kind of embodiment of a kind of flexible jig for fixing temperature measuring equipment camera lens provided by the invention;
Fig. 3 is the first plate front view in Fig. 1;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the front view of fixed sturcture in Fig. 2;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the front view of the second plate in Fig. 1;
Fig. 8 is the A-A cut-open view of Fig. 7;
Fig. 9 is the front view of Fig. 1 middle sleeve;
Figure 10 is the vertical view of Fig. 9;
Figure 11 is the front view of web joint in Fig. 1;
Figure 12 is the A-A cut-open view of Figure 11;
Figure 13 is the front view of the 4th plate in Fig. 1;
Figure 14 is the left view of Figure 13;
Figure 15 is the front view of the 3rd plate in Fig. 1;
Figure 16 is the left view of Figure 15.
Embodiment
Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public concrete enforcement.
Fig. 1 to Figure 16 shows a kind of embodiment of a kind of flexible jig (hereinafter referred to as flexible jig) for fixing temperature measuring equipment camera lens of the present invention.This flexible jig can be used for multiple thermometric occasion.
Attached middle school's parts are described as follows:
1: the first plate, 2: sleeve, 3: micromatic setting, 4: web joint, 5: the second plates, 6: the three plates, 7: the four plates, 8: fixed sturcture;
1-1: connecting hole, 1-2: arc groove;
8-1: the first clamping section, 8-2: mating holes, the 8-3: the first hole, the 8-4: the second hole, the 8-5: the second clamping section, 8-6: through slot;
5-1: line channel;
2-1: cavity;
6-1: the three hole;
In the present embodiment, temperature measuring equipment is the infrared temperature measurement apparatus measuring laser temperature.
Infrared temperature measurement apparatus has that precision is high, sensing range is large, the corresponding time is fast and use safety etc. has advantage.
Described Infrared measuring devices comprise gather radiation information camera lens, camera lens Information Monitoring is converted to the conversion equipment of temperature information and the optical fiber of connection transfer device and camera lens.Display screen conversion equipment being provided with displays temperature and the output terminal exported by temperature information, this output terminal is connected with control system.
When temperature survey, by region to be measured for device alignment lens.But for the tested object that laser spots equal-volume is less, for ensureing test result accuracy, be provided with flexible jig for fixing, clamping and adjustable lens.
As can be seen from Fig. 1 and Fig. 2, this flexible jig comprises fixed sturcture 8, first plate 1, second plate 5, micromatic setting 3 and supporting construction, and in the present embodiment, supporting construction comprises the 3rd plate 6 and the 4th plate 7.
Described fixed sturcture 8, for the camera lens of fixing infrared temperature measurement apparatus, comprises the mating holes 8-2 of this fixed sturcture through.Described mating holes 8-2 directly can contact with camera lens, and mating holes 8-2 has the structure coordinated with camera lens periphery.
But because camera lens is exact instrument, and in order to ensure that clamping is stable, be usually provided with the sleeve 2 of protection and supporting role.Described mating holes 8-2 then has the structure coordinated with described sleeve 2 periphery.And the cavity 2-1 that this sleeve 2 has accommodating camera lens and the circumferential profile that coordinates with described mating holes 8-2.
Described mating holes 8-2 structure can be determined according to the structure of the camera lens coordinated with it or sleeve 2.
As can be known from Fig. 5 and Fig. 6, in the present embodiment, described fixed sturcture 8 is platy structure.
Camera lens due to infrared thermometry device is cylindrical structure, accordingly, as shown in Figure 9 and Figure 10, described sleeve 2 has the column type cavity 2-1 coordinated with camera lens circumferential profile, the periphery of described sleeve 2 is cylindrical structure, and described mating holes 8-2 is the cylindrical hole coordinated with described sleeve 2.
For convenience of installing and clamping, described fixed sturcture 8 is processed into class yoke configurations.This fixed sturcture 8 is provided with through slot 8-6 relative to the side in the through direction of mating holes 8-2.This through slot 8-6 communicates with mating holes 8-2, and the fixed sturcture 8 of relevant position is divided into relative, that have setting spacing the first clamping section 8-1 and the second clamping section 8-3.
Described first clamping section 8-1 is connected by screw element with described second clamping section 8-3, and changes the spacing of this first clamping section 8-1 and the second clamping section 8-3 by the rotation of this screw element.
Described fixed sturcture 8 is provided with relative to any side in the through direction of mating holes 8-2 the first hole 8-3 and the second hole 8-4 that spacing is a.
From Fig. 3 and Fig. 4, described first plate 1 is rectangular plate-like structure, and corresponding angular structures has carried out rounding processing.Described first plate 1 is provided with connecting hole 1-1 and with this connecting hole 1-1 center be the center of circle, with the arc groove 1-2 of the length a setting radian that is radius, described connecting hole 1-1 and arc groove 1-2 is all along equidirectional this first plate 1 through.
Be fixedly installed first coupling shaft coaxial with the first hole 8-3 in described first hole 8-3, and this first coupling shaft is connected with connecting hole 1-1 is movable.
Second coupling shaft coaxial with this second hole 8-4 is connected with in described second hole 8-4, this the second connection central siphon is by this arc groove 1-2, described second coupling shaft is being provided with first lug boss that can stop this first plate 1 relative to described first plate 1 away from the side of described fixed sturcture 8, and described first lug boss rotates around this second hole 8-4 axis the distance regulated apart from described first plate 1.
The invention provides the connection that two kinds of embodiments realize fixed sturcture 8 and the first plate 1.
The first embodiment: described first hole 8-3 and described second hole 8-4 is the threaded hole of same specification, the width of described connecting hole 1-1 diameter and described arc groove 1-2 is all not less than the diameter (threaded hole external diameter) of described first hole 8-3.Described first hole 8-3 and described second hole 8-4 is all coordinated with connecting hole 1-1 and arc groove 1-2 respectively by bolt.
The second embodiment: be fixedly installed threaded threaded rod in described first hole 8-3 and described second hole 8-4, this threaded rod diameter is not more than the width of described connecting hole 1-1 diameter and described arc groove 1-2, and by being provided with nut after passing both, the large I of nut stops described first plate 1.
From the architectural feature of fixed sturcture 8, if the first hole 8-3 and the second hole 8-4 is arranged at the first clamping section 8-1 and the second clamping section 8-3 altogether when side, the respective side on the first clamping section 8-1 or the second clamping section 8-3 should be distributed in separately.As can be known from Fig. 5, described first hole is relative with side, through slot place with the second side, place, hole, namely relative in side altogether with the second clamping section 8-3 with the first clamping section 8-1.
Described first plate 1 and described second plate 5 one-tenth set angles are fixedly connected with, and connected mode can be fixedly connected with the one in mode for be threaded, welding etc.Angle can be determined according to actual conditions.In the present embodiment, described first plate 1 is vertically fixedly connected with by bolt with described second plate 5,90 degree.
Described second plate 5 offers the line channel 5-1 of this second plate 5 through, the development length of described line channel 5-1 is b.
The described connecting hole 1-1 of the first plate 1 and the relative position of arc groove 1-2 can be determined according to actual conditions.In the present embodiment, described connecting hole 1-1 comparatively arc groove 1-2 away from the second plate 5.
Described supporting construction is provided with conllinear and total spacing is less than at least two the 3rd hole 6-1 of b.
In the present embodiment, the bearing of trend of line channel 5-1, perpendicular to the first plate 1, described supporting construction is provided with two the 3rd hole 6-1.Certainly, the bearing of trend of line channel 5-1 can change according to actual conditions, and the number of the 3rd hole 6-1 also can be and increases stability and increase by the 3rd hole 6-1 number, and total spacing is then the spacing of head and the tail two the 3rd hole 6-1.
Three coupling shaft coaxial with corresponding 3rd hole 6-1 is connected with in described 3rd hole 6-1, the through described line channel 5-1 of described 3rd coupling shaft and the side of the 3rd hole 6-1 is being provided with second lug boss that can stop described second plate 5 relative to the second plate 5, described 3rd coupling shaft is provided with helicitic texture, and described second lug boss rotates around the 3rd hole 6-1 axis the distance regulated apart from described second plate 5.
In the present invention, the enforcement principle of described 3rd hole 6-1 is identical with the enforcement principle of above-mentioned second hole 8-3, not repeated description again.
For increasing the accuracy regulated, described first plate 1 is connected by micromatic setting 3 with the second plate 5.Described micromatic setting 3 is finished devices, can buy and obtain.This micromatic setting 3 can adjust on straight line in short distance, and can be locked after adjustment completes.The adjustment direction of this micromatic setting 3 is parallel with the bearing of trend of described line channel 5-1.
Accordingly, described first plate 1 comprises the web joint 4 coordinated with described micromatic setting 3.On described micromatic setting 3, end face and bottom surface are respectively arranged with the threaded hole for being connected other structures, and described web joint 4 and described second plate 5 are provided with the through hole corresponding to micromatic setting 3 threaded hole, are mutually connected by screw or bolt.
The angle of described web joint 4 and the first plate 1 and the angle of described first plate 1 and the second plate 5.This web joint 4 and the first plate 1 can be structure as a whole, and also can be formed by fixedly connecting.
Described supporting construction can set according to actual installation situation.
As shown in Figure 13 to Figure 16, in the present embodiment, described syndeton comprises described 3rd plate 6 and the 4th plate the 7, three plate 6 is vertically fixedly connected with the 4th plate 7.Connected mode is for being threaded, welding or one in other feasible patterns.Certainly also can be structure as a whole.
In the present embodiment, described 3rd plate 6 and the 4th plate 7 are bolted to connection.
The principle of work of flexible jig:
Infrared temperature measurement apparatus is opened, and hot spot got by camera lens.
This flexible jig is fixed on corresponding construction by supporting construction, and makes DE Lens Flares as far as possible near the position of detected object.
The first, to outward winding the bolt coordinated with the first plate 1 by arc groove 1-2, rotary fixing structure is around the axial-movement of the first hole 8-3 axis, make DE Lens Flares concordant with detected object in respective direction, tight a bolt after having regulated, fixed sturcture 8 is fixed on described first plate 1.
The second, to outward winding the bolt coordinated with the second plate 5 by line channel 5-1, tight a bolt after coarse adjustment to relevant position.Regulated by micromatic setting 3 again, make DE Lens Flares concordant with detected object in respective direction, then fix micromatic setting 3.
First and second adjustment orders can be exchanged.
Present invention also offers a kind of embodiment of temperature measuring equipment, comprise a kind of flexible jig for fixing temperature measuring equipment camera lens of above-mentioned arbitrary characteristics.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible variation and amendment, the scope that therefore protection scope of the present invention should define with the claims in the present invention is as the criterion.
Claims (10)
1. for a flexible jig for fixing temperature measuring equipment camera lens,
It is characterized in that:
Comprise fixed sturcture, the first plate, the second plate and supporting construction, described fixed sturcture is provided with this fixed sturcture through and for the mating holes of fixing temperature measuring equipment camera lens;
Described fixed sturcture is provided with relative to any side in the through direction of mating holes the first hole and the second hole that spacing is a;
Described first plate is provided with connecting hole and with this connecting hole center be the center of circle, with the arc groove of the length a setting radian that is radius, described connecting hole and arc groove are all along equidirectional this first plate through;
Be fixedly installed first coupling shaft coaxial with the first hole in described first hole, and this first coupling shaft is connected with connecting hole is movable;
Second coupling shaft coaxial with this second hole is connected with in described second hole, this the second connection central siphon is by this arc groove, described second coupling shaft is being provided with the first lug boss stopping this first plate away from the side of described fixed sturcture relative to described first plate, described second coupling shaft is provided with helicitic texture, and described first lug boss rotates the distance regulated apart from described first plate around this second axially bored line;
Described first plate becomes set angle to be connected with described second plate, described second plate offers the line channel of this second plate through, and the development length of described line channel is b;
Described supporting construction is provided with conllinear and total spacing is less than at least two the 3rd holes of b, three coupling shaft coaxial with corresponding 3rd hole is connected with in described 3rd hole, the through described line channel of described 3rd coupling shaft and the side in the 3rd hole is being provided with second lug boss that can stop described second plate relative to the second plate, described 3rd coupling shaft is provided with helicitic texture, and described second lug boss rotates the distance regulated apart from described second plate around the 3rd axially bored line;
This supporting construction is also provided with the mounting structure this supporting construction being fixed on other structures.
2. a kind of flexible jig for fixing temperature measuring equipment camera lens according to claim 1, it is characterized in that: described second plate is fixedly connected with by micromatic setting with described first plate, and the action direction of this micromatic setting is parallel with the bearing of trend of described line channel; Described first plate is provided with the web joint coordinated with described micromatic setting.
3. a kind of flexible jig for fixing temperature measuring equipment camera lens according to claim 1, is characterized in that: described first plate is vertical with described second plate.
4. a kind of flexible jig for fixing temperature measuring equipment camera lens according to claim 1, is characterized in that: the more described arc groove of described connecting hole is away from described second plate.
5. a kind of flexible jig for fixing temperature measuring equipment camera lens according to claim 1, it is characterized in that: described supporting construction comprises into the 3rd plate and the 4th plate that set angle is fixedly connected with, described 3rd plate is provided with the 3rd hole, and described mounting structure is the through hole coordinated with respective bolt.
6. a kind of flexible jig for fixing temperature measuring equipment camera lens according to claim 1, it is characterized in that: described fixed sturcture is provided with through slot relative to the side in the through direction of mating holes, this through slot communicates with mating holes, and the fixed sturcture of relevant position being divided into relative, that have setting spacing the first clamping section and the second clamping section, described first clamping section and described second clamping section are connected by screw element and change the spacing of this first clamping section and the second clamping section by the rotation of this screw element.
7. a kind of flexible jig for fixing temperature measuring equipment camera lens according to claim 1, it is characterized in that: comprise sleeve, described sleeve periphery has the profile coordinated with described mating holes, and center has the cavity of accommodating camera lens.
8. a kind of flexible jig for fixing temperature measuring equipment camera lens according to claim 1, is characterized in that: described first hole, the second hole and the 3rd hole are the threaded hole being provided with respective bolt.
9. a kind of flexible jig for fixing temperature measuring equipment camera lens according to claim 1, is characterized in that: described 3rd hole is two.
10. a temperature measuring equipment, is characterized in that: a kind of flexible jig for fixing temperature measuring equipment camera lens comprising right 1 to 10 arbitrary characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410833629.4A CN104568161A (en) | 2014-12-29 | 2014-12-29 | Adjustable fixture for fixing lens of temperature measurement device, and temperature measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410833629.4A CN104568161A (en) | 2014-12-29 | 2014-12-29 | Adjustable fixture for fixing lens of temperature measurement device, and temperature measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104568161A true CN104568161A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410833629.4A Pending CN104568161A (en) | 2014-12-29 | 2014-12-29 | Adjustable fixture for fixing lens of temperature measurement device, and temperature measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104568161A (en) |
Cited By (4)
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| CN105415096A (en) * | 2015-11-03 | 2016-03-23 | 清华大学 | Device used for hole machining operating |
| CN105671549A (en) * | 2016-03-30 | 2016-06-15 | 中原工学院 | Adjustable fixture of lateral powder feeding nozzle for laser cladding |
| CN114542862A (en) * | 2022-01-13 | 2022-05-27 | 无锡邑文电子科技有限公司 | Laser sensor position adjusting device |
| CN117232670A (en) * | 2023-11-09 | 2023-12-15 | 希科半导体科技(苏州)有限公司 | Temperature measuring device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415096A (en) * | 2015-11-03 | 2016-03-23 | 清华大学 | Device used for hole machining operating |
| CN105415096B (en) * | 2015-11-03 | 2017-08-04 | 清华大学 | Drilling operation device |
| CN105671549A (en) * | 2016-03-30 | 2016-06-15 | 中原工学院 | Adjustable fixture of lateral powder feeding nozzle for laser cladding |
| CN105671549B (en) * | 2016-03-30 | 2018-03-23 | 中原工学院 | A kind of flexible jig of the lateral powder-feeding nozzle of laser melting coating |
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| CN117232670A (en) * | 2023-11-09 | 2023-12-15 | 希科半导体科技(苏州)有限公司 | Temperature measuring device |
| CN117232670B (en) * | 2023-11-09 | 2024-02-20 | 希科半导体科技(苏州)有限公司 | Temperature measuring device |
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