CN107478177B - Centering instrument and use method - Google Patents
Centering instrument and use method Download PDFInfo
- Publication number
- CN107478177B CN107478177B CN201710487903.0A CN201710487903A CN107478177B CN 107478177 B CN107478177 B CN 107478177B CN 201710487903 A CN201710487903 A CN 201710487903A CN 107478177 B CN107478177 B CN 107478177B
- Authority
- CN
- China
- Prior art keywords
- laser
- support
- column
- positioning column
- support column
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000007774 longterm Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a centering instrument and a using method thereof, in particular to the technical field of detecting instruments, and the centering instrument comprises a display device, a laser emitting device and a laser collecting device, wherein the laser emitting device and the laser collecting device are electrically connected with the display device, the laser emitting device and the laser collecting device are respectively provided with a bracket, each bracket comprises two mutually parallel support columns, each support column penetrates through the laser emitting device or the laser collecting device, a support column is vertically arranged between the two support columns in one bracket, and the bottom of the laser emitting device or the bottom of the laser collecting device is tightly contacted with the support column. The invention can prevent the laser emission device or the laser collection device from falling and maintain the measurement stability.
Description
Technical Field
The invention belongs to the technical field of detection instruments, and particularly relates to a centering instrument and a use method thereof.
Background
All shafts, whether straight or curved, rotate about an axis, which is referred to as the center of rotation. The form of the rotation center is a straight line. When the centers of rotation of the two shafts form the same straight line, it is called concentricity (co-linearity). When the two axes are not concentric, it is referred to as misalignment. The mechanical displacement centering means that the centers of the connecting parts are aligned when the mechanical equipment couplings are connected, so that the coaxiality of the installation of the two equipment couplings is ensured, and the two equipment are prevented from damaging the mechanical equipment due to vibration and locking caused by the installation connection deflection. The laser centering instrument has the main functions of: the mechanical displacement is measured centrally when the mechanical device is axially coupled to the rotating member.
The laser emission device and the laser collection device of the existing laser centering instrument are directly fixed on the support, but the fixing piece is loosened after long-term use, and the laser emission device or the laser collection device falls off, so that the laser emission point and the laser collection point are not on the same line, and measurement is inaccurate. While few studies have been conducted on preventing the laser emitting device or the laser collecting device from falling.
The patent laser centering instrument simple calibration method (publication No. CN 103591909A) discloses a laser centering instrument simple calibration method, which comprises simple calibration of a horizontal mechanical displacement centering indication value and a vertical mechanical displacement centering indication value of the laser centering instrument, wherein the simple calibration of the horizontal mechanical displacement centering indication value comprises the steps of mounting the laser centering instrument, adjusting a zero position, detecting the 3 o 'clock direction and detecting the 9 o' clock direction, and the simple calibration of the vertical mechanical displacement centering indication value comprises the steps of mounting the laser centering instrument, adjusting the zero position and detecting the actual displacement of the vertical mechanical displacement. The simple calibration method is characterized in that the simple standard device is combined by the measuring mandrel with higher precision and the universal tool microscope, so that the laser centering instrument is used for centering calibration in the horizontal and vertical directions, the measurement is convenient, and the accuracy is high. In actual production, when abnormal values appear in the use of the laser centering instrument, the laser centering instrument can immediately perform self-calibration, the self-calibration is realized, the calibration is not needed to be sent out, the fault diagnosis time is shortened, and the use efficiency of the laser centering instrument is improved. But do not solve the existing problems.
Therefore, there is an urgent need for a centering instrument and a method of use that can prevent the laser emitting device or the laser collecting device from falling and maintain the stability of measurement.
Disclosure of Invention
The invention aims to provide a centering instrument which can prevent a laser emitting device or a laser collecting device from falling and keep measurement stability.
The invention provides the following technical scheme:
the utility model provides a centering instrument, includes display device, laser emission device and laser collection device, laser emission device with laser collection device all electricity links display device, laser emission device with laser collection device all is equipped with the support, the support includes two pillars that are parallel to each other, the support runs through laser emission device or laser collection device, one two in the support be equipped with the support column perpendicularly between the pillar, laser emission device's bottom or laser collection device's bottom in close contact with the support column. The laser emission device with the laser collection device is all fixed on the support, but long-term use, probably causes fixed not hard up, causes laser emission point and laser collection point not on a straight line, causes the error when measuring, the support column is fixed hold laser emission device or laser collection device avoids laser emission device or laser collection device whereabouts, ensures that laser emission point and laser collection point are on a straight line, ensures measuring accuracy.
Preferably, the support column is provided with a clamping hole, and two ends of the support column are provided with elastic clamping blocks matched with the clamping hole. A detachable connection mode, the support column is used for a long time and is caused to deform, and the support column can be replaced in time to ensure the stability of measurement.
Preferably, the lower end of the clamping hole is provided with scales. The clamping hole is enlarged due to long-term use, and when the support column falls downwards, the scales can be used as references to find problems in time and take corresponding countermeasures.
Preferably, the support post is welded to the support post. The defect of setting up the card hole can be solved.
Preferably, a first positioning column is movably arranged between the two support columns of one support frame, and the first positioning column is parallel to the support columns. Before starting the measurement, it is ensured that the struts of the same support are inserted to the same depth into the shaft to be measured.
Preferably, a second positioning column is arranged between the upper parts of the two brackets, and two ends of the second positioning column are vertically connected with the support columns. The second positioning column can be used for rapidly centering the shaft to be detected.
Preferably, the second positioning column has scalability. Thus, a plurality of distances can be measured, and the adaptability is wider.
Preferably, one end of the second positioning column is fixedly connected with the upper end of one support, and the other end of the second positioning column is movably connected with the upper end of the other support. The position relation of the fixed end of the second positioning column is always kept, the movable end of the second positioning column is only required to be directly lapped on the upper end of the support column of the other support, and the shaft to be detected is regulated to prop against the lower end part of the support column, so that the centering of the shaft is completed, and the centering is rapid and simple.
The use method of the centering instrument is as follows:
the first step: inserting the laser emission device of the centering instrument and the support column on the laser collection device into a shaft to be detected, and adjusting the position of the first positioning column to enable the first positioning column to press the surface of the shaft to be detected, so that the depth of the shaft to be detected, into which the support column of the same support frame is inserted, is ensured to be the same;
and a second step of: starting a power supply to start measurement, adjusting the position of the second positioning column according to an actual detection result, ensuring that the second positioning column is perpendicular to the support, directly adjusting the position of one end of the shaft to be detected, enabling the shaft to be detected to prop against the lower end of the support, and ending adjustment.
The beneficial effects of the invention are as follows: the laser emission device or the laser collection device is ensured to be stable and not to fall from the support, so that the detection precision is ensured, and the measurement stability is maintained.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the connection of the first support column to the support column.
Wherein the figures are marked as: 1. a display device; 2. a laser emitting device; 3. a laser collection device; 4. a bracket; 41. a support post; 411. a clamping hole; 5. a support column; 51. a clamping block; 6. a first positioning column; 7. a second positioning column;
Detailed Description
As shown in fig. 1-2, a centering instrument comprises a display device 1, a laser emitting device 2 and a laser collecting device 3, wherein the laser emitting device 2 and the laser collecting device 3 are electrically connected with the display device 1, the laser emitting device 2 and the laser collecting device 3 are respectively provided with a support 4, the supports 4 comprise two mutually parallel support posts 41, the supports 4 penetrate through the laser emitting device 2 or the laser collecting device 3, a support post 5 is vertically arranged between the two support posts 41 in one support post 4, and the bottom of the laser emitting device 2 or the bottom of the laser collecting device 3 is tightly contacted with the support post 5. The laser emission device 2 and the laser collection device 3 are both fixed on the support 41, but long-term use can cause fixation looseness, so that the laser emission point and the laser collection point are not on a straight line, errors are caused during measurement, the support column 5 fixes the laser emission device 2 or the laser collection device 3, the laser emission device 2 or the laser collection device 3 is prevented from falling down, the laser emission point and the laser collection point are ensured to be on the straight line, and measurement accuracy is ensured.
The support column 5 and the support column 41 are connected in two ways:
the first connection mode is as follows: a detachable connection mode is characterized in that a clamping hole 411 is formed in a support column 41, elastic clamping blocks 51 matched with the clamping hole 411 are arranged at two ends of a support column 5, and the clamping blocks 51 are directly inserted into the clamping hole 411, so that the clamping blocks 51 can be combined with the clamping hole 411 in an interference mode due to the elasticity of the clamping blocks 51, and the support column 5 is fixedly connected with the support column 41. The lower end of the clamping hole 411 is provided with scales. The card hole 411 is enlarged due to long-term use, and when the support column 5 falls downwards, the scale can be used as a reference to find problems in time and take corresponding countermeasures.
The advantages of using this connection are: the support column 5 is deformed after long-term use, and can be replaced in time to ensure the stability of measurement.
The second connection mode is as follows: a non-detachable connection, specifically, the support column 5 is welded to the support column 41, so that the support column 5 is fixedly connected to the support column 41.
In order to reduce errors in measurement, a first positioning column 6 is movably arranged between two support columns 41 of one support 4, and the first positioning column 6 is parallel to the support columns 5. Before starting the measurement, it is ensured that the two struts 41 of the same holder 4 are inserted to the same depth into the shaft to be measured. And the measurement error caused by subjective factors of operators is reduced.
In order to facilitate rapid centering of the shaft to be measured, a second positioning column 7 is arranged between the upper parts of the two brackets 4, and two ends of the second positioning column 7 are vertically connected with a supporting column 41. The second positioning column 7 has scalability. Thus, a plurality of distances can be measured, and the adaptability is wider. One end of the second positioning column 7 is fixedly connected with the upper end part of one bracket 4, and the other end is movably connected with the upper end part of the other bracket 4. The position relation of the fixed end of the second positioning column 7 is always kept, the movable end of the second positioning column 7 is only required to be directly lapped on the upper end of the support column 41 of the other support 4, and the shaft centering is completed after the shaft to be detected is regulated to be propped against the lower end of the support column 41, so that the centering is quick and simple.
The centering method using the centering instrument is as follows:
the first step: inserting the support posts 41 on the laser emission device 2 and the laser collection device 3 of the centering instrument on the shaft to be detected, and adjusting the position of the first positioning post 6 to enable the first positioning post 6 to press the surface of the shaft to be detected, so as to ensure that the insertion depths of the two support posts 41 of one bracket 4 are consistent;
and a second step of: starting the power supply to start measurement, adjusting the position of the second positioning column 7 according to the actual detection result, ensuring that the second positioning column 7 is perpendicular to the support 4, directly adjusting the position of one end of the shaft to be detected, enabling the shaft to be detected to prop against the lower end of the support 41, and ending the adjustment.
The advantages of this embodiment are as follows:
1. the support column 5 is arranged to fix the laser emission device 2 or the laser collection device 3, so that the laser emission device 2 or the laser collection device 3 is prevented from falling down, the laser emission point and the laser collection point are ensured to be on the same straight line, and the measurement accuracy is ensured;
2. the first positioning column 6 is arranged, so that errors caused by subjective factors during measurement can be reduced;
3. the second positioning column 7 is arranged, so that the shaft to be detected can be quickly centered.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A method of use of a centering instrument, wherein the method of use of the centering instrument is achieved by the centering instrument, the method of use of the centering instrument comprising the steps of:
the first step: inserting the support columns on the laser emission device and the laser collection device of the centering instrument into the shaft to be detected, and adjusting the position of the first positioning column to enable the first positioning column to press the surface of the shaft to be detected, so that the depth of the shaft to be detected, into which the support columns of the same bracket are inserted, is ensured to be the same;
and a second step of: starting a power supply to start measurement, adjusting the position of a second positioning column according to an actual detection result, ensuring that the second positioning column is vertical to the support, directly adjusting the position of one end of a shaft to be detected, enabling the shaft to be detected to prop against the lower end of the support, and ending the adjustment;
the centering instrument comprises a display device, a laser emission device and a laser collection device, wherein the laser emission device and the laser collection device are electrically connected with the display device, the laser emission device and the laser collection device are respectively provided with a support, each support comprises two mutually parallel support columns, the supports penetrate through the laser emission device or the laser collection device, a support column is vertically arranged between the two support columns in one support column, and the bottom of the laser emission device or the bottom of the laser collection device is tightly contacted with the support column;
a first positioning column is movably arranged between the two support columns of one support, and the first positioning column is parallel to the support columns;
a second positioning column is arranged between the upper parts of the two brackets, and two ends of the second positioning column are vertically connected with the support column;
one end of the second positioning column is fixedly connected with the upper end part of one bracket, and the other end of the second positioning column is movably connected with the upper end part of the other bracket;
the support column is welded on the support column;
the support column is provided with a clamping hole, and two ends of the support column are provided with elastic clamping blocks matched with the clamping hole;
the lower end of the clamping hole is provided with scales.
2. The method of claim 1, wherein the second positioning post is flexible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487903.0A CN107478177B (en) | 2017-06-23 | 2017-06-23 | Centering instrument and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487903.0A CN107478177B (en) | 2017-06-23 | 2017-06-23 | Centering instrument and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107478177A CN107478177A (en) | 2017-12-15 |
| CN107478177B true CN107478177B (en) | 2023-11-24 |
Family
ID=60593721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710487903.0A Active CN107478177B (en) | 2017-06-23 | 2017-06-23 | Centering instrument and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107478177B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200979408Y (en) * | 2006-11-17 | 2007-11-21 | 沈阳市宜和机械设备有限公司 | A laser alignment instrument |
| CN101298982A (en) * | 2008-07-02 | 2008-11-05 | 瑞安市瑞光光电仪器有限公司 | Method and instrument for calibrating rotary shaft coaxiality |
| WO2013004780A1 (en) * | 2011-07-05 | 2013-01-10 | Aktiebolaget Skf | Backlash measurement and compensation to increase the accuracy of laser shaft alignment |
| CN103591909A (en) * | 2013-10-12 | 2014-02-19 | 酒泉钢铁(集团)有限责任公司 | Simple calibration method of laser centering instrument |
| CN203893852U (en) * | 2014-04-08 | 2014-10-22 | 北京航天峰光电子技术有限责任公司 | Laser alignment device |
| CN104235564A (en) * | 2014-08-29 | 2014-12-24 | 成都市晶林科技有限公司 | Camera support with adjustable vertical height |
| CN104457623A (en) * | 2014-12-22 | 2015-03-25 | 吉林大学 | Laser measurement device for centralization error |
| CN207066366U (en) * | 2017-06-23 | 2018-03-02 | 丹阳市瑞华光学元件有限公司 | A kind of centering instrument |
-
2017
- 2017-06-23 CN CN201710487903.0A patent/CN107478177B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200979408Y (en) * | 2006-11-17 | 2007-11-21 | 沈阳市宜和机械设备有限公司 | A laser alignment instrument |
| CN101298982A (en) * | 2008-07-02 | 2008-11-05 | 瑞安市瑞光光电仪器有限公司 | Method and instrument for calibrating rotary shaft coaxiality |
| WO2013004780A1 (en) * | 2011-07-05 | 2013-01-10 | Aktiebolaget Skf | Backlash measurement and compensation to increase the accuracy of laser shaft alignment |
| CN103591909A (en) * | 2013-10-12 | 2014-02-19 | 酒泉钢铁(集团)有限责任公司 | Simple calibration method of laser centering instrument |
| CN203893852U (en) * | 2014-04-08 | 2014-10-22 | 北京航天峰光电子技术有限责任公司 | Laser alignment device |
| CN104235564A (en) * | 2014-08-29 | 2014-12-24 | 成都市晶林科技有限公司 | Camera support with adjustable vertical height |
| CN104457623A (en) * | 2014-12-22 | 2015-03-25 | 吉林大学 | Laser measurement device for centralization error |
| CN207066366U (en) * | 2017-06-23 | 2018-03-02 | 丹阳市瑞华光学元件有限公司 | A kind of centering instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107478177A (en) | 2017-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105509595B (en) | Beating degree detection equipment | |
| CN104374284A (en) | Bearing radial internal clearance measuring instrument | |
| CN106091884B (en) | It is a kind of for measure tongue-and-groove center away from it is horizontal to table measuring device | |
| CN114485327A (en) | Device for precisely measuring turbine disc blade assembly and grinding method | |
| CN107478177B (en) | Centering instrument and use method | |
| CN106769609B (en) | Fishing line softness testing device and method | |
| CN110186431B (en) | Shaft verticality detection device and detection calibration method thereof | |
| CN214308438U (en) | Drawing is measured with screw thread plug gauge of being convenient for stably putting | |
| CN208238712U (en) | Hydraulic cylinder inner hole and outer circle concentricity testing device | |
| CN203908559U (en) | Equipment for correcting round bubble of measuring centering rod | |
| CN102519482B (en) | Calibration positioning device | |
| CN204854603U (en) | Axiality inspection measuring tool | |
| CN207066366U (en) | A kind of centering instrument | |
| CN107464733B (en) | Sealing device and method for rotary cathode assembly of X-ray tube | |
| CN210221075U (en) | Shaft perpendicularity detection device | |
| CN102645142A (en) | Dial indicator bracket | |
| CN112197671A (en) | Device and method for detecting distance from blade fixed point to casing end face | |
| CN104776860A (en) | Measurement centeringrod circular bubble correction equipment | |
| JP2017044575A (en) | Inside micrometer with level | |
| CN218628367U (en) | Guide rod calibration ruler device | |
| CN218349385U (en) | Alignment calibration device for double-head double-machine double-station rotor | |
| CN106524848B (en) | Horizontal detection device of blade forging amesdial | |
| CN101979954B (en) | Measuring tool for measuring arc parts | |
| CN218847112U (en) | Concentricity correcting device for elastic pin coupling of centrifugal blower | |
| CN201772828U (en) | Large curved plate measuring jig frame |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230804 Address after: 400000 2-2-1-61 319 Haier Road, Jiangbei District, Chongqing. Applicant after: Chongqing Steady Technology Co.,Ltd. Address before: No. 33, Taiyangcheng Road, Danyang City, Zhenjiang City, Jiangsu Province, 212300 Applicant before: DANYANG RUIHUA OPTICAL COMPONENTS Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231017 Address after: Room 304, H # Comprehensive Building, No. 29-1 Chuangxin Second Road, Hunnan District, Shenyang City, Liaoning Province, 110000 Applicant after: Shenyang Huaqin Hangfa Technology Co.,Ltd. Address before: 400000 2-2-1-61 319 Haier Road, Jiangbei District, Chongqing. Applicant before: Chongqing Steady Technology Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |