CN104842065A - Laser machining head auxiliary focusing device based on pressure sensing - Google Patents
Laser machining head auxiliary focusing device based on pressure sensing Download PDFInfo
- Publication number
- CN104842065A CN104842065A CN201510284387.2A CN201510284387A CN104842065A CN 104842065 A CN104842065 A CN 104842065A CN 201510284387 A CN201510284387 A CN 201510284387A CN 104842065 A CN104842065 A CN 104842065A
- Authority
- CN
- China
- Prior art keywords
- defocusing amount
- sleeve
- laser machining
- machining head
- focusing
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- 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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser machining head auxiliary focusing device based on pressure sensing. The laser machining head auxiliary focusing device based on pressure sensing comprises a quick connection support, a height adjusting subassembly and a sensor sleeve which are sequentially connected to one another; a focusing needle, a defocusing amount indication needle, a linear spring, an upper cushion block and a pressure sensor connected with a signal outputting interface are sequentially inserted in the sensor sleeve; after being connected with the sensor sleeve, the pressure sensor presses the upper cushion block; defocusing amount scales are drawn on the outer surface of the sensor sleeve; a groove is formed in the outer side wall of the sensor sleeve; the defocusing amount indication needle can slip through the groove; the initial position of the defocusing amount indication needle points to an initial scale of the defocusing amount scales; the signal outputting interface is connected with a peripheral data acquisition system; and when the focusing needle is compressed to drive the defocusing amount indication needle to move, artificial focusing can be finished by artificial reading, the linear spring is driven to be compressed, and automatic focusing is implemented through pressure transmission of the pressure sensor. Accurate focusing of a laser machining head can be implemented, defocusing amount can be adjusted optionally within a certain range, and a manual focusing function and an automatic focusing function can be fulfilled.
Description
Technical field
The present invention relates to a kind of focusing mechanism, particularly relate to a kind of based on pressure sensing laser Machining head auxiliary focusing mechanism, belong to Laser Processing technical field of auxiliary equipment.
Background technology
At present, laser process equipment is widely used in fields such as semiconductor and microelectronic industry, auto industry, shipping industry, aerospace industries.Due to laser be by carrying out cutting after focusing on, welding, the processing such as punching, therefore the relative position on laser beam foucing and workpiece to be machined surface also seems that exception is important.
Conventional laser focusing method mainly contains: burned spot method, infrared photography method, aperture scanning method etc.Wherein burned spot method is the most conventional, and only need get a l Water Paper is attached to surface of the work, simple; But this method can only provide the profile of focus roughly to people, and due to the transverse heat transfer effect of material, the focus pattern distortion that burning is got, sometimes smudgy, focus inaccurate; And when determining initial processing position, adopting the ocular estimate that accuracy is not high, accurately machined requirement can not be met.Above-mentioned this operator, according to known process head focal length size or the size guiding hot spot, determines that roughly the focusing mode error of defocusing amount is large, efficiency is low, cannot meet the requirement of actual production.
In addition, focused by the guiding spot size measured on imaging device, although efficiency and the degree of accuracy increase, but additional imaging device cost significantly improves, add glazing and there is reflection at material surface, spot size is all comparatively large by the impact of material surface state and external interference, and the light spot image Dimensions recognition algorithm that imaging device obtains is complicated, software development cost is high, to such an extent as to is difficult to be used widely.
Summary of the invention
Main purpose of the present invention is, overcomes deficiency of the prior art, provides a kind of based on pressure sensing laser Machining head auxiliary focusing mechanism, is specially adapted to the laser process equipments such as laser weld, laser cutting and laser melting coating.
Technical problem to be solved by this invention be to provide compact conformation, easy accessibility, making easy, safe and reliable, practical based on pressure sensing laser Machining head auxiliary focusing mechanism, not only can realize the exact focus of laser Machining head, and defocusing amount can be regulated arbitrarily within the specific limits, applied widely, there is manual and automatic dual focus function simultaneously, have the value in industry.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of based on pressure sensing laser Machining head auxiliary focusing mechanism, comprise connect successively connect bearing, height adjustment assembly and sensor sleeve soon, be set with focusing pin, defocusing amount pointer, Hookean spring, upper cushion block in described sensor sleeve successively and be connected with the pressure sensor of signal output interface.
Wherein, after described pressure sensor is connected with sensor sleeve, push down upper cushion block, the outer surface of described sensor sleeve is drawn defocusing amount scale, lateral wall offers notch for the slippage of defocusing amount pointer.
And the initial position of described defocusing amount pointer points to the start index of defocusing amount scale, after focusing pin pressurized drives defocusing amount pointer to move, obtain defocusing amount by artificial reading defocusing amount scale complete artificial focusing; Described signal output interface is connected with the data collecting system of peripheral hardware, carries out pressure signal process acquisition defocusing amount realize auto-focusing after pressure is passed to pressure sensor by upper cushion block by focusing pin pressurized leading linear spring-compressed by data collecting system.
The present invention is set to further: also comprise transition disc, and its end face is connected with the bottom surface connecing bearing soon, bottom surface is connected with height adjustment assembly.
The present invention is set to further: the end face of described transition disc is provided with external screw thread projection, and the described bottom surface connecing bearing is soon provided with the match internal thread groove that be connected protruding with external screw thread.
The present invention is set to further: described height adjustment assembly comprises external thread column and inner thread sleeve, and described external thread column is connected in inner thread sleeve by screw thread, and the bottom surface of described inner thread sleeve is connected with the end face of sensor sleeve.
The present invention is set to further: the bottom surface of described inner thread sleeve and the end face of sensor sleeve are threaded connection.
The present invention is set to further: the bottom surface of described inner thread sleeve is provided with internal thread pit, and the end face of described sensor sleeve is provided with the external screw thread breach be connected that to match with internal thread pit.
The present invention is set to further: described external thread column is that hollow is arranged; Described external thread column and inner thread sleeve all adopt aluminum alloy materials.
The present invention is set to further: the inner tube wall of described sensor sleeve is provided with and is threaded fixing internal thread segment for pressure sensor, and described pressure sensor pushes down upper cushion block after being connected with internal thread segment screw thread by bottom external screw thread.
The present invention is set to further: described bearing, transition disc, upper cushion block and the sensor sleeve of connecing soon all adopts aluminum alloy materials, and described focusing pin is stainless steel material.
The present invention is set to further: the needle end of described focusing pin is round end or tip.
Compared with prior art, the beneficial effect that the present invention has is: the exact focus that not only can realize laser Machining head, and defocusing amount can be regulated arbitrarily within the specific limits, there is the plurality of advantages that compact conformation, easy accessibility, making are easy, safe and reliable, practical, applied widely.
Foregoing is only the general introduction of technical solution of the present invention, and in order to clearer understanding technological means of the present invention, below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation based on pressure sensing laser Machining head auxiliary focusing mechanism of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figure 1, a kind of based on pressure sensing laser Machining head auxiliary focusing mechanism, comprise connect successively connect bearing 1, transition disc 2, height adjustment assembly and sensor sleeve 10 soon, described height adjustment assembly comprises external thread column 3 and inner thread sleeve 4, described external thread column 3 is connected in inner thread sleeve 4 by screw thread, and the bottom surface of described inner thread sleeve 4 is connected with the end face of sensor sleeve 10; Be set with focusing pin 11, defocusing amount pointer 9, Hookean spring 8, upper cushion block 7 in described sensor sleeve 10 successively and be connected with the pressure sensor 6 of signal output interface 5, push down upper cushion block 7 after described pressure sensor 6 is connected with sensor sleeve 10, the outer surface of described sensor sleeve 10 is drawn defocusing amount scale 12, lateral wall offers notch (not shown) for the slippage of defocusing amount pointer 9.
The start index kx of the initial position sensing defocusing amount scale 12 of described defocusing amount pointer 9, obtains defocusing amount by artificial reading defocusing amount scale 12 and completes artificial focusing after focusing pin 11 pressurized drives defocusing amount pointer 9 to move; Described signal output interface 5 is connected with the data collecting system (not shown) of peripheral hardware, when focusing pin 11 pressurized leading linear spring 8 compress by upper cushion block 7, pressure is passed to pressure sensor 6 after carry out pressure signal process by data collecting system and obtain defocusing amount and realize auto-focusing.
In order to alleviate the weight of whole auxiliary focusing mechanism, described bearing 1, transition disc 2, external thread column 3, inner thread sleeve 4, upper cushion block 7 and the sensor sleeve 10 of connecing soon all adopts aluminum alloy materials, described focusing pin 11 is stainless steel material, and described external thread column 3 adopts hollow to arrange.
The described bearing 1 that connects soon is for being connected with laser Machining head (as first-class in plumb joint, cutting head, cladding), can according to the architectural difference of different manufacturers laser Machining head, connect soon bearing 1 matched setting, bolt-type fit structure can be adopted, thus ensure turn join firmly convenient.
The end face of described transition disc 2 is provided with external screw thread projection 21, and the described bottom surface connecing bearing 1 is soon provided with the internal thread groove 22 be connected that to match with external screw thread projection 21, and the bottom surface of described transition disc 2 is connected with external thread column 3 screw thread; Describedly connect bearing 1 soon and transition disc 2 is threaded connection, while realizing connecting fast, that can change different structure for different laser Machining heads connects bearing 1 soon, and need not change the focusing mechanism main body connecing below bearing 1 bottom surface soon.
Described external thread column 3 is connected in inner thread sleeve 4 by screw thread, and the depth of being assembled by external thread column 3 and inner thread sleeve 4, can regulate the height of whole focusing mechanism, ensures to match with the laser Machining head focal length size used; The reach of hollow external thread column 3 and inner thread sleeve 4 directly determines the focal length size of the assembling laser Machining head of auxiliary focusing mechanism, and the laser Machining head focal length size that can use according to reality changes the length of hollow external thread column 3 and inner thread sleeve 4.
The bottom surface of described inner thread sleeve 4 is provided with internal thread pit 41, and the end face of described sensor sleeve 10 is provided with the external screw thread breach 42 carrying out being threaded that to match with internal thread pit 41; The inner tube wall of described sensor sleeve 10 is provided with the internal thread segment 61 being threaded fixing for pressure sensor 6, and described pressure sensor 6 pushes down upper cushion block 7 after being connected with internal thread segment 61 screw thread by bottom external screw thread.Before inner thread sleeve 4 is equipped with the sensor sleeve 10 of below, first focusing pin 11 should be put into sensor sleeve 10, then Hookean spring 8 and defocusing amount pointer 9 are loaded in sensor sleeve 10, upper cushion block 7 is placed on Hookean spring 8; Then connected by the internal thread of pressure sensor 6 by sensor sleeve 10, the screw-in depth of adjustment screw thread, withstands cushion block 7, is drawn by the signal output interface 5 of pressure sensor 6 by sensor sleeve 10 sidewall notch; Finally sensor sleeve 10 and inner thread sleeve 4 are fitted together, so far whole auxiliary focusing mechanism assembling is complete.
Implementation process: employing reach is all hollow external thread column 3 and the inner thread sleeve 4 of 120 mm, model is the pressure sensor 6 of XPCM10, screw thread installation dimension is M10, Hookean spring 8 diameter be 7 mm, long 80 mm, can linear compression length >40 mm, the front end needle end of focusing pin 11 adopts diameter to be the round end (as shown in the figure) of 4mm, and being suitable for laser Machining head focal length is that the laser-processing system of 200 ~ 350 mm is focused for smooth machined material.
Wherein, the adjusting range of defocusing amount can linear compression length determine by Hookean spring 8, focus adjustment scope be that-20mm ~ 20mm requirement can linear compression length >40mm; If focus adjustment area requirement is-30mm ~ 30mm, then require that the Hookean spring 8 selected can linear compression length >60 mm, by that analogy.
But for irregular material to be processed focusing surface, focusing pin 11 can adopt the tip that radius is less, as focused in grooves of welding joints, needle end diameter can be adopted to be the focusing pin of 1mm, to ensure the reliable arrival of focusing pin 11 needle end.
After assembling, the degree of depth of being assembled by adjustment external thread column 3 and inner thread sleeve 4, is made the focal length baseline at zero point of laser Machining head to the size of the distance 20mm longer than known focal length of focusing pin 11 needle point, completes auxiliary focusing mechanism adjustment work.
Focus process is: laser Machining head is moved down, focusing pin 11 needle end is allowed just to touch material surface to be processed, now be in positive out-of-focus appearance, defocusing amount is 20mm, can read defocusing amount kx be 20 mm from defocusing amount pointer 9 at the defocusing amount scale 12 that sensor sleeve 10 indicates; Laser Machining head continues to move down, focusing pin 11 pressurized, and then make Hookean spring 8 pressurized, drive defocusing amount pointer 9 in sensor sleeve 10 sidewall notch on move, instruction defocusing amount diminishes, so just can read the defocusing amount of any time, from 20mm to-20mm, interval changes defocusing amount indicating range.As will auto-focusing be realized, the signal output interface 5 pressure sensor 6 can drawn is connected with data collecting system, gather the signal of telecommunication that pressure sensor 6 exports, carrying out the linear calibration of defocusing amount with the signal of telecommunication collected, by the size of computer programming setting defocusing amount and control executing agency (as robot) motion obtain needed for defocusing amount, thus realize auto-focusing.
Innovative point of the present invention is, can realize the exact focus of laser Machining head, and can regulate defocusing amount arbitrarily within the specific limits.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. one kind based on pressure sensing laser Machining head auxiliary focusing mechanism, it is characterized in that: comprise connect successively connect bearing, height adjustment assembly and sensor sleeve soon, be set with focusing pin, defocusing amount pointer, Hookean spring, upper cushion block in described sensor sleeve successively and be connected with the pressure sensor of signal output interface;
Push down upper cushion block after described pressure sensor is connected with sensor sleeve, the outer surface of described sensor sleeve is drawn defocusing amount scale, lateral wall offers notch for the slippage of defocusing amount pointer;
The initial position of described defocusing amount pointer points to the start index of defocusing amount scale, obtains defocusing amount complete artificial focusing after focusing pin pressurized drives defocusing amount pointer to move by artificial reading defocusing amount scale;
Described signal output interface is connected with the data collecting system of peripheral hardware, carries out pressure signal process acquisition defocusing amount realize auto-focusing after pressure is passed to pressure sensor by upper cushion block by focusing pin pressurized leading linear spring-compressed by data collecting system.
2. one according to claim 1 is based on pressure sensing laser Machining head auxiliary focusing mechanism, it is characterized in that: also comprise transition disc, and its end face is connected with the bottom surface connecing bearing soon, bottom surface is connected with height adjustment assembly.
3. one according to claim 2 is based on pressure sensing laser Machining head auxiliary focusing mechanism, it is characterized in that: the end face of described transition disc is provided with external screw thread projection, the described bottom surface connecing bearing is soon provided with the match internal thread groove that be connected protruding with external screw thread.
4. one according to claim 1 is based on pressure sensing laser Machining head auxiliary focusing mechanism, it is characterized in that: described height adjustment assembly comprises external thread column and inner thread sleeve, described external thread column is connected in inner thread sleeve by screw thread, and the bottom surface of described inner thread sleeve is connected with the end face of sensor sleeve.
5. one according to claim 4 is based on pressure sensing laser Machining head auxiliary focusing mechanism, it is characterized in that: the bottom surface of described inner thread sleeve and the end face of sensor sleeve are threaded connection.
6. one according to claim 4 is based on pressure sensing laser Machining head auxiliary focusing mechanism, it is characterized in that: the bottom surface of described inner thread sleeve is provided with internal thread pit, the end face of described sensor sleeve is provided with the external screw thread breach be connected that to match with internal thread pit.
7. one according to claim 4 is based on pressure sensing laser Machining head auxiliary focusing mechanism, it is characterized in that: described external thread column is that hollow is arranged; Described external thread column and inner thread sleeve all adopt aluminum alloy materials.
8. one according to claim 1 is based on pressure sensing laser Machining head auxiliary focusing mechanism, it is characterized in that: the inner tube wall of described sensor sleeve is provided with and is threaded fixing internal thread segment for pressure sensor, and described pressure sensor pushes down upper cushion block after being connected with internal thread segment screw thread by bottom external screw thread.
9. one according to claim 2 is based on pressure sensing laser Machining head auxiliary focusing mechanism, it is characterized in that: described bearing, transition disc, upper cushion block and the sensor sleeve of connecing soon all adopts aluminum alloy materials, and described focusing pin is stainless steel material.
10. one according to claim 1 is based on pressure sensing laser Machining head auxiliary focusing mechanism, it is characterized in that: the needle end of described focusing pin is round end or tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284387.2A CN104842065B (en) | 2015-05-28 | 2015-05-28 | A kind of based on pressure sensing laser Machining head auxiliary focusing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284387.2A CN104842065B (en) | 2015-05-28 | 2015-05-28 | A kind of based on pressure sensing laser Machining head auxiliary focusing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104842065A true CN104842065A (en) | 2015-08-19 |
| CN104842065B CN104842065B (en) | 2016-08-24 |
Family
ID=53842253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510284387.2A Active CN104842065B (en) | 2015-05-28 | 2015-05-28 | A kind of based on pressure sensing laser Machining head auxiliary focusing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104842065B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562924A (en) * | 2016-02-02 | 2016-05-11 | 重庆凯沃德光电自动化设备有限公司 | Auxiliary focusing method for laser machining equipment |
| CN106077874A (en) * | 2016-08-23 | 2016-11-09 | 贵州西南工具(集团)有限公司 | A kind of cutter high frequency brazing pressure apparatus and using method |
| CN106181026A (en) * | 2016-08-15 | 2016-12-07 | 中国航空工业集团公司北京航空制造工程研究所 | Focal position in a kind of Laser Processing determines equipment, method and device |
| CN110747468A (en) * | 2019-12-03 | 2020-02-04 | 浙江工业大学 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
| CN113640985A (en) * | 2021-07-16 | 2021-11-12 | 贵州大学 | Method for continuously adjusting space form of focused optical fiber laser beam |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60166185A (en) * | 1984-02-10 | 1985-08-29 | Mitsubishi Electric Corp | Focusing device for laser |
| JPH10305383A (en) * | 1997-05-12 | 1998-11-17 | Amada Co Ltd | Method and device for laser processing |
| CN1390649A (en) * | 2002-07-05 | 2003-01-15 | 清华大学 | Noozle for laser smelting deposition by vertically feeding powder |
| CN2739741Y (en) * | 2004-11-05 | 2005-11-09 | 中国航空工业第一集团公司北京航空制造工程研究所 | Laser welding curve seam robot demonstrating device |
| CN203992832U (en) * | 2014-07-28 | 2014-12-10 | 温州市镭诺科技有限公司 | A kind of laser cutting machine |
| CN104588885A (en) * | 2015-01-22 | 2015-05-06 | 天津市激光技术研究所 | Self-gravity focusing tracking device for laser engraving of shaped curve surface |
-
2015
- 2015-05-28 CN CN201510284387.2A patent/CN104842065B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60166185A (en) * | 1984-02-10 | 1985-08-29 | Mitsubishi Electric Corp | Focusing device for laser |
| JPH10305383A (en) * | 1997-05-12 | 1998-11-17 | Amada Co Ltd | Method and device for laser processing |
| CN1390649A (en) * | 2002-07-05 | 2003-01-15 | 清华大学 | Noozle for laser smelting deposition by vertically feeding powder |
| CN2739741Y (en) * | 2004-11-05 | 2005-11-09 | 中国航空工业第一集团公司北京航空制造工程研究所 | Laser welding curve seam robot demonstrating device |
| CN203992832U (en) * | 2014-07-28 | 2014-12-10 | 温州市镭诺科技有限公司 | A kind of laser cutting machine |
| CN104588885A (en) * | 2015-01-22 | 2015-05-06 | 天津市激光技术研究所 | Self-gravity focusing tracking device for laser engraving of shaped curve surface |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562924A (en) * | 2016-02-02 | 2016-05-11 | 重庆凯沃德光电自动化设备有限公司 | Auxiliary focusing method for laser machining equipment |
| CN106181026A (en) * | 2016-08-15 | 2016-12-07 | 中国航空工业集团公司北京航空制造工程研究所 | Focal position in a kind of Laser Processing determines equipment, method and device |
| CN106077874A (en) * | 2016-08-23 | 2016-11-09 | 贵州西南工具(集团)有限公司 | A kind of cutter high frequency brazing pressure apparatus and using method |
| CN110747468A (en) * | 2019-12-03 | 2020-02-04 | 浙江工业大学 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
| CN110747468B (en) * | 2019-12-03 | 2024-03-26 | 浙江工业大学 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
| CN113640985A (en) * | 2021-07-16 | 2021-11-12 | 贵州大学 | Method for continuously adjusting space form of focused optical fiber laser beam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104842065B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104842065A (en) | Laser machining head auxiliary focusing device based on pressure sensing | |
| US20190360795A1 (en) | Device and method for measuring workpieces | |
| CN103180094B (en) | The assay method of tool sizes and determinator | |
| CN108076633B (en) | Method for engraving, marking and/or inscription of workpieces with a laser plotter and laser plotter for use in the method | |
| US10036629B2 (en) | Optical thread profiler | |
| CN101382422A (en) | Internal contour outline automatic detection system for pipe-shaped parts | |
| CN201876244U (en) | Intelligent inner hole measurer for wire production dies | |
| DE102014117978A1 (en) | Apparatus and method for measuring workpieces | |
| JP7259111B2 (en) | Method for measuring at least one dimension of an object | |
| CN102589853B (en) | Focal length measuring method of auto-collimating differential confocal lens | |
| CN110260813B (en) | Bend pipe deflection laser detection method based on CCD image processing | |
| CN101126628A (en) | Tubular member internal thread detection device based on laser shift sensor | |
| CN113701669A (en) | Method for quickly and accurately measuring profile characteristics of inner section of deep hole | |
| CN213560635U (en) | Zero focus correcting unit of laser cutting head | |
| KR100925647B1 (en) | Sensing device and its method for compensating tool position processing oil-groove inside of engine cylinder | |
| CN104748674A (en) | Focus monitoring device and method | |
| CN105841617B (en) | It is a kind of confocal altogether as contraposition microassembly system and calibration method | |
| CN102878933B (en) | Comparator based on white light interference positioning principle and detection method thereof | |
| TW201323973A (en) | Spectral confocal system and method | |
| CN211331676U (en) | Aviation blade puncher installs gas film hole site aperture on-line measuring's device additional | |
| CN201149481Y (en) | Device for automatically measuring jackrod inner thickened segment | |
| KR100531768B1 (en) | Position measuring observer device laser head for welding | |
| CN107830820A (en) | A kind of angle measurement frock | |
| CN111964612B (en) | Drilling normal vector alignment method based on high-reflectivity imaging principle | |
| CN210604518U (en) | Locator for ultrasonic scanning microscope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 210031, 68 North Pearl Road, Taishan Park, Nanjing hi tech Development Zone, Jiangsu, China Applicant after: NANJING ZHONGCHE PUZHEN URBAN RAIL VEHICLE CO., LTD. Address before: 210031 hi tech Development Zone, Jiangsu, Nanjing Applicant before: CSR Nanjing Puzhen Mass Transit Vehicle Co., Ltd |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |