CN208132567U - A kind of laser displacement sensor on-machine measurement system - Google Patents
A kind of laser displacement sensor on-machine measurement system Download PDFInfo
- Publication number
- CN208132567U CN208132567U CN201820621041.6U CN201820621041U CN208132567U CN 208132567 U CN208132567 U CN 208132567U CN 201820621041 U CN201820621041 U CN 201820621041U CN 208132567 U CN208132567 U CN 208132567U
- Authority
- CN
- China
- Prior art keywords
- measurement
- sensor
- machine tool
- machine
- fixture
- 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
Abstract
The utility model belongs to on-machine measurement field, and discloses a kind of system of laser displacement sensor on-machine measurement.The measuring system includes workbench, machine tool fixture, knife handle fixture, measurement sensor, and table surface is provided with a plurality of slot along its axial direction, and for placing machine tool fixture, machine tool fixture realizes the transformation of position by being placed in different slots；Machine tool fixture is for clamping parts to be processed；The top of workbench is arranged in knife handle fixture, and for clamping measurement sensor, machine tool chief axis has the freedom degree of multiple directions, for adjusting the position of measurement sensor；Measurement sensor issues measurement laser to the surface of part to be measured, then receives reflected light of the laser after piece surface to be measured reflection, detects the distance between the measurement optical flame detector and part to be measured with this.By the utility model, contactless on-machine measurement is realized, work efficiency is high, and accumulated error is small, substantially increases product qualification rate and detection efficiency.
Description
Technical field
The utility model belongs to on-machine measurement field, more particularly, to a kind of laser displacement sensor on-machine measurement system
System.
Background technique
With the rapid development of process industry, the shape for the product produced is more complicated, dimensional tolerance requirement more
Strictly, the requirement of machining accuracy is higher and higher, and in previous machining Practice, it can only guarantee part by numerical control program
Machining accuracy, but the mismachining tolerance generated by the non-process control factor such as tool wear in process, lack reliable
Process means analyzed, judged and adjusted, eventually lead to processing part qualification rate it is low, cause a large amount of human and material resources resources
Waste.
Aircraft structure and missile airframe structural member equidimension specification for aviation field is big, and machining feature is more, precision
Demanding complex thin-wall component might have multiple working procedure in its process and need to carry out three-coordinates measuring machine measurement.
And three-coordinates measuring machine is run in fully closed measurement environment, the detection method of contact needs to carry out cumbersome
Detection route Programming and collision simulation inspection, the status for causing detection time also longer than process time seriously affect
Production efficiency, at the same part may also can multiple transfer, clamping repeatedly, this results in error accumulation, and there are hidden danger of quality.
Although occurring contact on-machine measurement in the prior art, which can be by providing analysis data in real time
Process modification, Tracing back of quality questions provide foundation, provide reliable quality for batch production and guarantee, but contact measuring head is measuring
When single-point need to be touched repeatedly, low efficiency and the limitation vulnerable to design of part；Contact on-machine measurement is also easy to produce interference,
Path planning is difficult, need to fully consider measuring staff length, diameter equidimension parameter, plan its measuring route, in this way to behaviour
Higher technical requirements are proposed as personnel；In addition conventional contact measurement, which cannot achieve, carries out full inspection survey to each workpiece, only
Part can be inspected by random samples, detect poor reliability.
For the defect for overcoming above-mentioned detection mode, occurs non-contact measurement mode in the prior art, wherein laser position
Displacement sensor measuring system has received widespread attention.But current mature laser displacement measurement system is simultaneously few.Liu Yong et al.
A kind of laser displacement sensor measuring system is disclosed herein in opinion, mainly for complex parts, develops a whole set of answer
For various laser displacement measurement sensor on-machine measurement systems, it can be achieved that the automatic of gauge head is replaced and to part after processing
Rapid survey, but there is some problems for its disclosed technology, without the light direction for considering the problems of laser, default
Emergent ray is parallel with Z axis after dot laser sensor is mounted on machine tool chief axis, but actual installation can have some errors, reason
It is considered as the light direction of dot laser, the data that in addition sensor is surveyed are how in conjunction with lathe coordinate system and workpiece coordinate system
Foundation is also required to consider to design emphatically.
Utility model content
Aiming at the above defects or improvement requirements of the prior art, the utility model provides a kind of laser displacement sensor and exists
Machine measuring system passes through moving certainly for cutter-exchange mechanism before the start of the measurement by using knife handle fixture clamping measurement sensor
Knife function is switched to the knife handle for being equipped with measurement sensor, disposable clamping work is realized, using the movement of machine tool chief axis to dress
The part being clipped on lathe is scanned measurement, realizes the part feature detection of automation, and work efficiency is high, and accumulated error is small,
Substantially increase product qualification rate and detection efficiency.
To achieve the above object, according to the utility model, a kind of laser displacement sensor on-machine measurement system is provided,
It is characterized in that, which includes workbench, machine tool fixture, knife handle fixture, measurement sensor,
The table surface is provided with a plurality of slot along its axial direction, for placing the machine tool fixture, the lathe
Fixture realizes the transformation of position by being placed in different slots；
On the workbench, for clamping parts to be processed, the machine tool fixture is in the work for the machine tool fixture setting
Make the mobile position for changing parts to be processed with this on platform；
The top of the workbench is arranged in the knife handle fixture, connect with machine tool chief axis, for clamping measurement sensor,
The machine tool chief axis has the freedom degree of multiple directions, for adjusting the position of measurement sensor；
The measurement sensor issues measurement laser to the surface of part to be measured, then receives the laser through parts list to be measured
Reflected light after the reflection of face, detects the distance between the measurement optical flame detector and part to be measured with this.
It is further preferred that being provided with index dial on the knife handle fixture, passed for installing measurement sensor and adjusting measurement
The angle of sensor.
It is further preferred that the data processing module is sensed with measurement respectively the system also includes data processing module
Device is connected with lathe, on the one hand realizes the communication between lathe and sensor by the serial data that processing lathe is sent, another
Aspect is used to receive and process the data of measurement sensor measurement.
It is further preferred that the measurement sensor preferably uses laser displacement sensor.
In general, it can obtain down the above technical solutions conceived by the present invention are compared with the prior art,
Column beneficial effect：
1, the defect that the utility model overcomes conventional measurement systems efficiency relatively low, is changed using non-contact measurement and automation
Non-contact fast multimetering may be implemented in such a way that laser displacement sensor at a distance is with part to be measured in knife,
Quick and high-precision measurement can be achieved；
2, the measurement sensor of the utility model uses laser displacement sensor, and data processing is relatively simple, it is easy to accomplish
Rapid survey, so that device overall structure provided by the utility model is simple, easy to operate, measurement efficiency is high, and versatility
By force；
3, device provided by the utility model it is convenient before measuring to the Laser output direction of laser measurer transmitting into
Rower is fixed, thus can get accurate Laser output direction vector, while also facilitating and demarcating to lathe accelerating and decelerating part, thus
Realize that machine coordinates are combined in real time with sensor measurement data；
4, the utility model realizes the accessible communication of lathe and measurement sensor by using data processing module, and
The reading of laser feeler data is carried out using the data processing module and processing is analyzed, and then realizes that machine coordinates and measurement sense
Device measured value combines in real time.
Detailed description of the invention
Fig. 1 is to show according to the overall structure of the constructed laser displacement sensor on-machine measurement system of the utility model implementation
It is intended to；
Fig. 2 is the master of laser displacement sensor on-machine measurement system constructed by preferred embodiment according to the utility model
Depending on structure chart；
Fig. 3 is according to indexable in laser displacement sensor on-machine measurement system constructed by the utility model embodiment
Knife handle clamp structure schematic diagram；
Fig. 4 is the schematic front view of the indexable knife handle fixture in Fig. 3；
Fig. 5 is the communication module according to laser displacement sensor on-machine measurement system constructed by the utility model embodiment
Schematic diagram；
Fig. 6 is to carry out zero using according to laser displacement sensor on-machine measurement system constructed by the utility model embodiment
The flow diagram of part detection.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, wherein：
100- lathe, 101- workbench, 102- machine tool chief axis, 103- machine tool fixture, 104- part to be measured, 105- knife handle folder
Tool, 106,203- measurement sensors, 107- computer, 200- taper shank, 201- taper-shank arbor, 202- adapter, 204- measurement sensing
Device, 205- knob, 206- end cap, 207- index dial
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.In addition, institute in the various embodiments of the present invention described below
The technical characteristic being related to can be combined with each other as long as they do not conflict with each other.
As illustrated in fig. 1 and 2, according to a kind of laser displacement sensor on-machine measurement system constructed by the utility model embodiment
System comprising lathe 100, workbench 101, machine tool chief axis 102, machine tool fixture 103, computer 107 are mounted on machine tool fixture
Part to be measured 104 on 103 and the indexable knife handle fixture 105 being mounted on machine tool chief axis 102 and it is mounted on indexable knife
Measurement sensor 106 on spindle clamp tool 105.
100 upper part of lathe is provided with workbench 101, and machine tool chief axis 102 is located at 101 top of workbench；Platen
The operating space for clamping part to be measured and measuring is formed between 101 and machine tool chief axis 102.Machine tool fixture 103 is set
It sets on workbench 101, indexable knife handle fixture setting is placed in operating space together on machine tool chief axis.
Specifically, 104 clamping of part to be measured carries out processing and sensor to it in machine tool fixture 103, in lathe 100
106 pairs its measure during, it is not necessary to Set and Positioning repeatedly.
Measurement sensor 106 is mounted on indexable knife handle fixture 105, wherein measurement when sensor 106 with it is to be measured
Part 104 is separated by a distance, can move up and down measurement sensor 106 by machine tool chief axis 102, with to be measured for guaranteeing
The surface characteristics of part 104 is in the measurement range of measurement sensor 106.
As shown in Figures 3 and 4, the indexable Special scalpel handle fixture of the utility model embodiment includes taper shank 200, taper-shank arbor
201, adapter 202, measurement sensor 203, casting die 204, knob 205, end cap 206 and dividing spindle 207.Wherein, the taper shank
200 are mounted on machine tool chief axis 102 for connection adapter piece 202 and lathe 100, taper shank 200, and adapter 202 and taper shank 200 are logical
It crosses taper-shank arbor 201 to link together, sensor 203 is mounted on one end of adapter 202, and 202 other end of adapter is equipped with end
Lid 206, end cap 206 seal dividing spindle 207, and dividing spindle 207 is mainly used for realizing that 203 fixed angle of sensor is rotated and locked
Function.Knob 205 and casting die 204 are mounted on the edge of adapter.
As shown in figure 5, the communication module of the utility model embodiment includes stm32 single-chip microcontroller, ttl RS 232 module,
RS422 RS 232 module and 9 needles turn 25 needle RS232 modules.Wherein, 9 needles turn 25 needle RS232 modules for the old of lathe
The switching of 25 needle interface of formula is 9 needle interfaces, then turns ttl module via RS232 and is connected on the stm32, the stm32 master
Wanting function is by 7 data bit from lathe, 2 stop positions, and the data of even parity check are converted into 8 data bit, 1 stopping
Position, the data of no parity check are sent；And the defect of spcial character, such as carriage return, space can not be sent for lathe, referred to
It enables identification and reissues spcial character；The unrecognized messy code for sending instruction front and back otherwise for lathe is filtered.Final number
Measurement sensor is sent to according to via ttl RS 232 module and RS232 switching RS422 module.
As shown in fig. 6, one measured using the laser displacement sensor on-machine measurement new system of the present embodiment is excellent
The process of choosing is：
After 100 completion of processing of lathe, changed to using cutter-exchange mechanism to the indexable knife handle fixture for being equipped with sensor 106
105, centre need not part to be measured Set and Positioning repeatedly, measurement sensor power supply is connected, by computer 107 to sensor
106 carry out calibration calibration, and when calibration, which can choose, to be manually entered coordinate and read in coordinate hereof；
Calibration of Laser light direction demarcates lathe Acceleration and deceleration time section；
Measuring route and method are controlled by lathe 100 later, data processing is carried out by computer 107.In servo electricity
Under the drive of machine, sensor 106 follows main shaft in three direction translationals on numerically-controlled machine tool, to the multiple of measured part 104
Feature carries out continuous measurement acquisition, and collected measurement distance is sent in computer 107 and machine by frequency acquisition 49.02kHz
Bed coordinate system obtains three-dimensional point cloud output display after being combined processing.To the duplicate measurements in a manner described of multiple features, to each
Parameter is handled in real time, and profiling object surface data can be obtained, and is carried out being sent in icloud software in obtained point cloud data
Model Matching generates detection guidance report.
In the present embodiment, such as the surface of cuboid part can be measured, the flatness etc. on its obtained surface can be with
Examining report is generated in real time while measurement, shows each Testing index error amount, is determined to be detected zero according to preset requirement
Whether part is qualified.
The setting measurement distance of sensor described in the utility model embodiment is preferably 30mm-50mm, and measurement range is excellent
It is selected as 10mm-40mm.
In the present embodiment, transducer calibration is mainly used for determining the light direction of sensor, will to sense well
Under the measurement numerical value conversion to lathe coordinate system of device, the calibration carried out is for sensor preliminary test.
In the present embodiment, the motion control of system includes two large divisions：It the translation in three directions of sensor and manually controls
Sensor rotation.Since dot laser measurement sensor itself is merely able to measure between piece surface to be measured and measurement sensor
Distance, the three-dimensional appearance of testee can not be obtained, to complete measurement must by the rotation of machine tool chief axis and sensor,
Traverse measurement object under precise control completes the measurement in multiple features face, and then completes whole three-dimensional point cloud measurement.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of laser displacement sensor on-machine measurement system, which is characterized in that the measuring system includes workbench (101), machine
Bed fixture (103), knife handle fixture (105), measurement sensor (203),
Workbench (101) surface is provided with a plurality of slot along its axial direction, for placing the machine tool fixture (103),
The machine tool fixture realizes the transformation of position by being placed in different slots；
On the workbench, for clamping parts to be processed, the machine tool fixture is in the work for machine tool fixture (103) setting
Make the mobile position for changing parts to be processed with this on platform；
The top of the workbench is arranged in the knife handle fixture (105), connect with machine tool chief axis, for clamping measurement sensor
(203), the machine tool chief axis has the freedom degree of multiple directions, for adjusting the position of measurement sensor；
The measurement sensor (203) issues measurement laser to the surface of part to be measured, then receives the laser through part to be measured
Reflected light after surface reflection detects the distance between the measurement optical flame detector and part to be measured with this.
2. a kind of laser displacement sensor on-machine measurement system as described in claim 1, which is characterized in that on the knife handle fixture
Index dial (207) are provided with, for installing measurement sensor and adjusting the angle of measurement sensor.
3. a kind of laser displacement sensor on-machine measurement system as claimed in claim 1 or 2, which is characterized in that the system
It further include data processing module, which connect with measurement sensor and lathe respectively, on the one hand passes through processor
The serial data that bed is sent realizes the communication between lathe and sensor, on the other hand for receiving and processing measurement sensor survey
The data of amount.
4. a kind of laser displacement sensor on-machine measurement system as claimed in claim 1 or 2, which is characterized in that the measurement
Sensor (203) preferably uses laser displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820621041.6U CN208132567U (en) | 2018-04-27 | 2018-04-27 | A kind of laser displacement sensor on-machine measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820621041.6U CN208132567U (en) | 2018-04-27 | 2018-04-27 | A kind of laser displacement sensor on-machine measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208132567U true CN208132567U (en) | 2018-11-23 |
Family
ID=64310535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820621041.6U Active CN208132567U (en) | 2018-04-27 | 2018-04-27 | A kind of laser displacement sensor on-machine measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208132567U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581637A (en) * | 2018-04-27 | 2018-09-28 | 华中科技大学 | A kind of laser displacement sensor on-machine measurement system |
| CN111707188A (en) * | 2020-06-10 | 2020-09-25 | 湖北亿鹏展精密机械有限公司 | Laser-based on-machine measuring device and measuring method |
| CN112171345A (en) * | 2020-09-17 | 2021-01-05 | 湖北三江航天险峰电子信息有限公司 | Electric conduction structure and on-machine measuring device comprising same |
| CN113770810A (en) * | 2021-09-24 | 2021-12-10 | 成都飞机工业（集团）有限责任公司 | Probe posture adjusting auxiliary device for on-machine measurement and using method thereof |
-
2018
- 2018-04-27 CN CN201820621041.6U patent/CN208132567U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581637A (en) * | 2018-04-27 | 2018-09-28 | 华中科技大学 | A kind of laser displacement sensor on-machine measurement system |
| CN111707188A (en) * | 2020-06-10 | 2020-09-25 | 湖北亿鹏展精密机械有限公司 | Laser-based on-machine measuring device and measuring method |
| CN111707188B (en) * | 2020-06-10 | 2022-02-18 | 湖北亿鹏展精密机械有限公司 | Laser-based on-machine measuring device and measuring method |
| CN112171345A (en) * | 2020-09-17 | 2021-01-05 | 湖北三江航天险峰电子信息有限公司 | Electric conduction structure and on-machine measuring device comprising same |
| CN112171345B (en) * | 2020-09-17 | 2022-02-01 | 湖北三江航天险峰电子信息有限公司 | Electric conduction structure and on-machine measuring device comprising same |
| CN113770810A (en) * | 2021-09-24 | 2021-12-10 | 成都飞机工业（集团）有限责任公司 | Probe posture adjusting auxiliary device for on-machine measurement and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108581637A (en) | A kind of laser displacement sensor on-machine measurement system | |
| CN208132567U (en) | A kind of laser displacement sensor on-machine measurement system | |
| CN102927952B (en) | Method for detecting diameter of outer wall of tapered case of aviation engine on line | |
| CN103278100B (en) | A kind of bore diameter measuring method based on noncontacting proximity sensor combination | |
| CN104567679A (en) | Turbine blade visual inspection system | |
| CN103759685B (en) | Detection method for identifying geometric accuracy of four-axis machining center | |
| CN108680124B (en) | Photoelectric detection robot and detection method for shape tolerance | |
| CN104316001B (en) | Non-reference hole coaxiality error measurement system and measurement method thereof | |
| CN202869440U (en) | Five-shaft system solid of revolution measuring instrument | |
| CN111215967B (en) | Device and method for detecting dynamic precision of numerical control machine tool | |
| CN103481122A (en) | Contact measurement error compensation method oriented to freeform surface and compensation system | |
| CN109648398A (en) | A kind of part size on-line measuring device and its detection method | |
| CN206925649U (en) | Digit Control Machine Tool and its measuring system | |
| CN205192431U (en) | Case valve barrel parameter automatic checkout device | |
| CN203758455U (en) | Industrial robot repetitive positioning precision measuring device | |
| CN109318059A (en) | The calibrating installation and method of numerically-controlled machine tool translation shaft geometric error | |
| CN109794805A (en) | A kind of cone hole machine bus deviation automatic detection device and its detection method | |
| CN106975983A (en) | A kind of method of testing for the hot position error of vertical machining centre linear axes | |
| CN109520417A (en) | Lathe geometric error and turntable corner position error calibrating installation and method | |
| CN106289056B (en) | A kind of dise knife library tool-changing mechanical arm device for detecting performance and method | |
| CN204757949U (en) | Measurement device for main shaft developments gyration error is equipped in complete set gyration | |
| CN219319352U (en) | Calibrating device for large-size three-coordinate measuring machine | |
| CN209524877U (en) | A kind of on-line measurement system of numerically-controlled machine tool dynamic accuracy | |
| CN106679554B (en) | A kind of workpiece size measuring instrument for NC milling center | |
| CN109612397A (en) | The survey detecting method of shaft sleeve arrangement inclined hole back gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |