CN113063347A - Three-dimensional coordinate measuring device for complex bent pipe - Google Patents
Three-dimensional coordinate measuring device for complex bent pipe Download PDFInfo
- Publication number
- CN113063347A CN113063347A CN202110241997.XA CN202110241997A CN113063347A CN 113063347 A CN113063347 A CN 113063347A CN 202110241997 A CN202110241997 A CN 202110241997A CN 113063347 A CN113063347 A CN 113063347A
- Authority
- CN
- China
- Prior art keywords
- bent pipe
- guide groove
- dimensional coordinate
- range finder
- laser range
- 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.)
- Pending
Links
- 238000005452 bending Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000007547 defect Effects 0.000 description 5
- 230000005012 migration Effects 0.000 description 5
- 238000013508 migration Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 1
Images
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
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
- G01B11/005—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates coordinate measuring machines
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The application relates to a measuring device for three-dimensional coordinate values of a complex bent pipe. The measuring device comprises a guide groove, a movable base, a fastening knob, a universal pin shaft and a laser range finder. The transverse guide groove is connected with the longitudinal guide groove and then fixed on the workbench through bolts. The horizontal moving base is installed in the horizontal and longitudinal guide grooves, and after the horizontal and vertical moving bases move to corresponding positions, the fastening knob I and the fastening knob II fasten the horizontal and vertical moving bases respectively. The elbow is inserted into the universal pin shaft, the first laser range finder sleeved on the elbow measures the Z coordinate of any position of the elbow, the second laser range finder measures the X, Y coordinate of the position, and the measured three-dimensional coordinate value of any point of the elbow is compared with the theoretical coordinate value of the position, so that whether the elbow meets the requirement or not is judged. The method for correcting the bent pipe which does not meet the requirements comprises the following steps: and re-bending, wherein after the bending is finished, the three-dimensional coordinate value of the bent pipe is re-measured and compared with the theoretical coordinate value until the size of the bent pipe meets the requirement.
Description
Technical Field
The application relates to a device for acquiring the size of a complex bent pipe, in particular to a device for measuring the three-dimensional coordinate of the complex bent pipe.
Background
The defects frequently occurring in the pipe bending process mainly comprise elliptical deformation at the arc part, thinning of the pipe wall at the outer side of the arc, bending resilience and the like. The radius of the bent pipe is different, the mode and the position of the former two defects are different, the influence of the defects can be reduced by correcting the parameters of the bent pipe equipment, and the elastic rebound of the bent workpiece cannot be avoided.
The quality of the bent pipe can be greatly influenced by the existence of the defects of the bent pipe. The springback phenomenon inevitably enables the bending angle of the pipe to be larger than a preset angle, so that the process precision of pipe bending is reduced, and finally, the pipe fitting cannot be installed. Therefore, the three-dimensional coordinate value of any position of the bent pipe is measured and compared with the three-dimensional coordinate value of the position processing theory, and the bent pipe with the size not meeting the requirement is corrected, so that the size precision and the appearance quality of the bent pipe are improved.
Disclosure of Invention
The application provides a three-dimensional coordinate measuring device for a complex bent pipe, aiming at improving the size precision and appearance quality of the bent pipe and overcoming the influence caused by the defect of the bent pipe.
The three-dimensional coordinate measuring device for the complex bent pipe comprises a guide groove, a moving base, a fastening knob, a universal pin shaft and a laser range finder. The guide groove comprises a transverse guide groove, a longitudinal guide groove and a vertical guide groove, and the transverse guide groove, the longitudinal guide groove and the vertical guide groove can be interchanged. The measuring device is characterized in that the transverse guide groove and the two longitudinal guide grooves are connected through two bolts, mounting holes are respectively formed in two ends of the bottom of each of the transverse guide groove and the longitudinal guide grooves, and the measuring device is fixed on a workbench through the bolts during use.
The movable base comprises a horizontal movable base and a vertical movable base, the horizontal movable base is installed in the transverse guide groove and the longitudinal guide groove and can move in the transverse guide groove and the longitudinal guide groove, the vertical movable base is installed in the vertical guide groove and can move in the vertical guide groove, and the horizontal movable base supports the vertical guide groove.
The horizontal migration base includes backup pad, axle and pulley, the backup pad threaded hole, horizontal guide way, vertical guide way one end are sealed one section and are opened, the horizontal migration base passes through horizontal guide way, the open one end of vertical guide way are installed in horizontal guide way, vertical guide way, the pulley is in horizontal guide way, vertical guide way remove, drive vertical guide way is in remove in horizontal guide way and the vertical guide way.
The vertical guide groove is connected with the horizontal moving base through a bolt, the first fastening knob is installed on the horizontal moving base, and the first fastening knob fixes the horizontal moving base after the horizontal moving base drives the vertical guide groove to move to a corresponding position.
The vertical moving base and the horizontal moving base are basically consistent in structure, and the main difference is the number and the positions of threaded holes. The vertical moving base is arranged in the vertical guide groove, the fastening knob II is arranged on the vertical moving base, and the fastening knob II is used for fixing the vertical moving base after the vertical moving base moves to a corresponding position.
The universal pin shaft is installed on the vertical moving base and comprises a pin shaft and a universal shaft. And the bent pipe is inserted into the universal pin shaft on the vertical moving base.
The universal shaft can rotate in the pin shaft according to the angle of the end part of the bent pipe, and the universal pin shaft with the corresponding size can be replaced according to the pipe diameter of the bent pipe. And after the horizontal moving base and the vertical moving base move to corresponding positions according to the size of the bent pipe, the horizontal moving base and the vertical moving base are fixed by the first fastening knob and the second fastening knob respectively.
After the bent pipe is installed in the three-dimensional coordinate measuring device, the laser range finder is sleeved on the bent pipe, and the laser range finder II is installed on the working table. The first laser range finder is arranged at any position of the bent pipe, the distance from the position to the working table surface is measured, namely the Z coordinate, the second laser range finder is arranged under the first laser range finder, and the distance from the position to the transverse guide groove and the longitudinal guide groove is measured, namely the X, Y coordinate.
The three-dimensional coordinate measuring device is adopted to measure the size of the bent pipe, so that the three-dimensional coordinate value of any position of the bent pipe can be obtained.
The three-dimensional coordinate measuring device for the complex bent pipe provided by the application has the advantages of but not limited to: the bent pipe has a very wide application range, but the bent pipe has a complex structure and a large size, and accurate three-dimensional coordinate values at any position are difficult to obtain by a conventional measurement method. The complex bent pipe three-dimensional coordinate measuring device can accurately obtain the actual three-dimensional coordinate value of any position of the bent pipe, and can know whether the size of the bent pipe meets the requirement or not by comparing the actual three-dimensional coordinate value with the position processing theory coordinate value.
The method for correcting the bent pipe which does not meet the requirements comprises the following steps: and re-bending the bent pipe which does not meet the requirement, and re-measuring the three-dimensional coordinates of the bent pipe after the bending is finished until the size of the bent pipe meets the requirement. The complex bent pipe three-dimensional coordinate measuring device provided by the application realizes the measurement of the complex bent pipe three-dimensional coordinate, saves the purchase cost of three-dimensional coordinate measuring equipment, reduces the risk of unqualified products flowing out, and saves the production cost.
Drawings
For a clearer explanation of the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some examples of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure vector of the present invention.
Fig. 2 is a vector diagram of the horizontal motion base structure of the present invention.
FIG. 3 is a schematic view of a structural vector of a vertically movable base of the present invention.
FIG. 4 is a schematic view showing the vector of the vertical guide groove and the longitudinal guide groove in the present invention.
Fig. 5 is a vector diagram of the universal pin structure of the present invention.
In the figure: 1-longitudinal guide groove; 2-horizontally moving the base; 3, fastening a first knob; 4-vertical guide groove; 5-vertically moving the base; 6, fastening a knob II; 7, bending the pipe; 8, a bolt; 9-transverse guide groove; 10-mounting holes; 11-laser range finder I; 12-laser distance measuring instrument two; 13-universal pin shaft; 201-a pulley; 202-threaded hole one; 203-a support plate; 204-connecting threaded hole; 205-axis; 501-universal shaft threaded hole; 502-screw hole two; 1301, a pin shaft; 1302-cardan shaft.
Detailed Description
The technical solutions in the embodiments of the present application are described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the examples of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The three-dimensional coordinate measuring device for the complex bent pipe is executed after the bent pipe is finished, and the bent pipes with different pipe diameters can adopt universal pin shafts with different diameters. In the embodiment of the present application, the elbow 7 to be measured is taken as an example for explanation.
As shown in fig. 1 to 5, the present application provides an embodiment of three-dimensional coordinate measurement of a complex bent pipe, where the three-dimensional coordinate measurement device includes a longitudinal guide groove 1, a horizontal movement base 2, a first fastening knob 3, a vertical guide groove 4, a vertical movement base 5, a second fastening knob 6, a bent pipe 7, a bolt 8, a transverse guide groove 9, a mounting hole 10, a first laser range finder 11, a second laser range finder 12, and a universal pin 13. Wherein the longitudinal guide groove 1, the vertical guide groove 4 and the transverse guide groove 9 can be interchanged.
Referring to fig. 1, a transverse guide groove 9 is coupled to two longitudinal guide grooves 1 by two bolts 8, which form the base of the measuring device. The two ends of the bottom of the transverse guide groove 9 and the two ends of the bottom of the longitudinal guide groove 1 are respectively provided with a mounting hole 10, and the three-dimensional coordinate measuring device is fixed on a workbench through bolts when in use.
The mobile base comprises a horizontal mobile base 2 and a vertical mobile base 5. Horizontal migration base 2 installs in horizontal guide way 9, vertical guide way 1, and vertical migration base 5 installs in vertical guide way 4, and horizontal migration base 2 supports vertical guide way 9.
Referring to fig. 2, the horizontal movement base 2 includes a pulley 201, a screw hole one 202, a support plate 203, a coupling screw hole 204, and a shaft 205. One end of each of the transverse guide groove 9 and the longitudinal guide groove 1 is closed and opened, and the horizontal moving base 2 is installed in the transverse guide groove 9 and the longitudinal guide groove 1 through the transverse guide groove 9 and the open end of the longitudinal guide groove 1. The horizontal movement base 2 is freely moved in the lateral guide groove 9 and the longitudinal guide groove 1 by the pulley 201. After the horizontal moving base 2 is moved to the corresponding position, the fastening knob one 3 is screwed into the threaded hole one 202 to fix the horizontal moving base 2.
Referring to fig. 4, the horizontal movement base 2 and the vertical guide groove 4 are fixed together at the coupling threaded hole 204 by the bolt 8, and the horizontal movement base 2 drives the vertical guide groove 4 to move in the transverse guide groove 9 and the longitudinal guide groove 1.
Referring to fig. 3, the vertical movement base 5 includes a pulley 201, a support plate 203, a shaft 205, a universal shaft screw hole 501, and a screw hole two 502.
Referring to fig. 1, the vertical moving base 5 is installed in the vertical guide groove 4 through the open end of the vertical guide groove 4. The vertically movable base 5 is freely movable in the vertical guide groove 4 by means of the pulley 201. And after the vertical moving base 5 moves to the corresponding position, screwing a fastening knob II 6 at the threaded hole II 502 to fix the vertical moving base 5.
Referring to fig. 4, the universal pin 13 is installed on the vertically movable base 5, referring to fig. 5, the universal pin 13 includes a pin 1301 and a universal shaft 1302, the elbow 7 is inserted into the pin 1301, the universal shaft 1302 rotates to a corresponding position according to an angle of an end of the elbow 7, and the corresponding universal pin 13 can be selected according to a pipe diameter of the elbow 7. After the horizontal moving base 2 and the vertical moving base 5 move to corresponding positions according to the size of the elbow 7, the fastening knob I3 and the fastening knob II 6 fix the horizontal moving base 2 and the vertical moving base 5 respectively.
Referring to fig. 1, after the bent pipe 7 is installed in the three-dimensional coordinate measuring device, the first laser distance measuring instrument 11 is sleeved in the bent pipe 7 to measure the Z coordinate of the bent pipe at any position, and the second laser distance measuring instrument 12 is placed right below the first laser distance measuring instrument 11 to measure the distance from the position to the transverse guide groove 9 and the longitudinal guide groove 1, namely X, Y coordinates. The three-dimensional coordinate values at arbitrary positions can be obtained.
And obtaining X, Y, Z coordinates at any position of the bent pipe through the first laser range finder 11 and the second laser range finder 12, and comparing the X, Y, Z coordinates with theoretical coordinate values at the position, wherein if the X, Y, Z coordinate values are consistent, the bent pipe 7 is judged to meet the requirements, and otherwise, the bent pipe 7 does not meet the requirements.
The method for correcting the unsatisfactory bent pipe 7 comprises the following steps: and re-bending the bent pipe 7 which does not meet the requirement, and re-measuring the three-dimensional coordinate of the bent pipe 7 and comparing the three-dimensional coordinate with the theoretical coordinate value after the bending is finished until the size of the bent pipe meets the requirement.
Claims (6)
1. A three-dimensional coordinate measuring device for a complex bent pipe is characterized in that: the device comprises a guide groove, a movable base, a fastening knob, a bent pipe, a laser range finder and a universal pin shaft; the guide grooves comprise a transverse guide groove, a longitudinal guide groove and a vertical guide groove, and the transverse guide groove, the longitudinal guide groove and the vertical guide groove can be interchanged; the transverse guide groove and the two longitudinal guide grooves form a base of the complex bent pipe three-dimensional coordinate measuring device, and the base is fixed on a workbench through a mounting hole; the horizontal moving base is connected with the vertical guide groove and then is installed in the transverse guide groove and the longitudinal guide groove; the vertical moving base is installed in the vertical guide groove, and the universal pin shaft is installed on the vertical moving base; the bent pipe is inserted into the universal pin shaft; after the bent pipe is placed in the three-dimensional coordinate measuring device, the first fastening knob fixes the horizontal moving base, and the second fastening knob fixes the vertical moving base; the first laser range finder measures the Z coordinate of any position of the bent pipe, and the second laser range finder measures the X, Y coordinate of any position of the bent pipe.
2. The three-dimensional coordinate measuring device for the complex bent pipe according to claim 1, wherein: the movable base bag
The device comprises a horizontal moving base and a vertical moving base, wherein the moving base mainly comprises a pulley, a supporting plate and a threaded hole; the movable base can move in the transverse guide groove, the longitudinal guide groove and the vertical guide groove, and the fastening knob is used for fixing the movable base.
3. The three-dimensional coordinate measuring device for the complex bent pipe according to claim 1, wherein: the universal pin shaft consists of
The pin shaft and the universal shaft are formed; the universal pin shaft is arranged on the vertical moving base, and the bent pipe is inserted into the pin shaft
In, the cardan shaft can be according to the return bend tip angle rotates, corresponding size can be selected for use to the return bend of different pipe diameters
The universal pin shaft.
4. The three-dimensional coordinate measuring device for the complex bent pipe according to claim 1, wherein: the laser range finder
The system comprises a first laser range finder and a second laser range finder; the laser range finder is sleeved into the elbow pipe to measure the Z coordinate of any position of the elbow pipe, and the laser range finder II is placed under the laser range finder I to measure the X, Y coordinate of the position.
5. The three-dimensional coordinate measuring device for the complex bent pipe according to claim 1, wherein: and obtaining X, Y, Z coordinates of any position of the bent pipe through the laser range finder, comparing the X, Y, Z coordinates with theoretical coordinate values of the position, if the X, Y, Z coordinate values are consistent, judging that the bent pipe meets the requirement, and if not, judging that the bent pipe does not meet the requirement.
6. The three-dimensional coordinate measuring device for the complex bent pipe according to claim 1, wherein: the method for correcting the bent pipe which does not meet the requirements comprises the following steps: and re-bending the bent pipe which does not meet the requirement, and after the bending is finished, re-measuring the three-dimensional coordinate of the bent pipe and comparing the three-dimensional coordinate with the theoretical coordinate value until the size of the bent pipe meets the requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110241997.XA CN113063347A (en) | 2021-03-04 | 2021-03-04 | Three-dimensional coordinate measuring device for complex bent pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110241997.XA CN113063347A (en) | 2021-03-04 | 2021-03-04 | Three-dimensional coordinate measuring device for complex bent pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113063347A true CN113063347A (en) | 2021-07-02 |
Family
ID=76559657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110241997.XA Pending CN113063347A (en) | 2021-03-04 | 2021-03-04 | Three-dimensional coordinate measuring device for complex bent pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113063347A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852582A (en) * | 2010-05-28 | 2010-10-06 | 河北理工大学 | Measuring device and measuring method for geometric parameters of inner wall of elbow |
| CN102103091A (en) * | 2007-12-29 | 2011-06-22 | 清华大学 | Detector device and captive test (CT) inspecting system with detector device |
| CN102342790A (en) * | 2011-09-19 | 2012-02-08 | 王文太 | Multifunctional wiping device |
| CN104019746A (en) * | 2014-06-20 | 2014-09-03 | 中国石油大学(北京) | Measurement device and method for fracture shapes after physical model samples are fractured |
| CN106226736A (en) * | 2016-08-29 | 2016-12-14 | 湖南镭目科技有限公司 | A kind of steel billet position finding and detection method and detecting system |
| CN205920091U (en) * | 2016-08-26 | 2017-02-01 | 四川石油天然气建设工程有限责任公司 | Return bend automated inspection system of detecting a flaw |
| CN208042989U (en) * | 2018-04-17 | 2018-11-02 | 沈阳建筑大学 | A kind of large-scale sheet metal works almost T-stable automatic detection device |
| CN109443205A (en) * | 2018-11-08 | 2019-03-08 | 中车长春轨道客车股份有限公司 | A kind of complexity bend pipe size detecting device |
| CN109708574A (en) * | 2019-02-25 | 2019-05-03 | 河北科技大学 | Pipeline bulk measuring system |
| CN110702061A (en) * | 2019-09-06 | 2020-01-17 | 山东科技大学 | Three-dimensional moving deformation measurement system and application thereof in three-dimensional simulation experiment |
| CN210004985U (en) * | 2019-05-16 | 2020-01-31 | 四川会通汽车管业制造有限公司 | bend three-dimensional profile tester |
| CN111272119A (en) * | 2020-04-17 | 2020-06-12 | 广州文冲船厂有限责任公司 | Elbow measuring device and measuring method |
| CN111272109A (en) * | 2020-02-25 | 2020-06-12 | 浙江工业大学之江学院 | Bending angle and resilience precision measuring device for continuous bent pipe with linear section in space |
| CN111722242A (en) * | 2020-07-09 | 2020-09-29 | 十堰强玖工贸有限公司 | Comprehensive checking fixture for position degree of mounting hole of rear cover bracket of axle |
-
2021
- 2021-03-04 CN CN202110241997.XA patent/CN113063347A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103091A (en) * | 2007-12-29 | 2011-06-22 | 清华大学 | Detector device and captive test (CT) inspecting system with detector device |
| CN101852582A (en) * | 2010-05-28 | 2010-10-06 | 河北理工大学 | Measuring device and measuring method for geometric parameters of inner wall of elbow |
| CN102342790A (en) * | 2011-09-19 | 2012-02-08 | 王文太 | Multifunctional wiping device |
| CN104019746A (en) * | 2014-06-20 | 2014-09-03 | 中国石油大学(北京) | Measurement device and method for fracture shapes after physical model samples are fractured |
| CN205920091U (en) * | 2016-08-26 | 2017-02-01 | 四川石油天然气建设工程有限责任公司 | Return bend automated inspection system of detecting a flaw |
| CN106226736A (en) * | 2016-08-29 | 2016-12-14 | 湖南镭目科技有限公司 | A kind of steel billet position finding and detection method and detecting system |
| CN208042989U (en) * | 2018-04-17 | 2018-11-02 | 沈阳建筑大学 | A kind of large-scale sheet metal works almost T-stable automatic detection device |
| CN109443205A (en) * | 2018-11-08 | 2019-03-08 | 中车长春轨道客车股份有限公司 | A kind of complexity bend pipe size detecting device |
| CN109708574A (en) * | 2019-02-25 | 2019-05-03 | 河北科技大学 | Pipeline bulk measuring system |
| CN210004985U (en) * | 2019-05-16 | 2020-01-31 | 四川会通汽车管业制造有限公司 | bend three-dimensional profile tester |
| CN110702061A (en) * | 2019-09-06 | 2020-01-17 | 山东科技大学 | Three-dimensional moving deformation measurement system and application thereof in three-dimensional simulation experiment |
| CN111272109A (en) * | 2020-02-25 | 2020-06-12 | 浙江工业大学之江学院 | Bending angle and resilience precision measuring device for continuous bent pipe with linear section in space |
| CN111272119A (en) * | 2020-04-17 | 2020-06-12 | 广州文冲船厂有限责任公司 | Elbow measuring device and measuring method |
| CN111722242A (en) * | 2020-07-09 | 2020-09-29 | 十堰强玖工贸有限公司 | Comprehensive checking fixture for position degree of mounting hole of rear cover bracket of axle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106500564B (en) | A kind of small segmental arc thin-walled sheet metal part detection method of major diameter | |
| CN105806709B (en) | Method and equipment for testing performance of pipe | |
| CN109211055A (en) | A kind of combination instrument cubing | |
| CN110064680B (en) | Method for rapidly measuring large bending deformation of bar | |
| CN113340238B (en) | Detection method for detecting angles and positions of small inclined holes in large holes and small inclined holes of parts | |
| CN113063347A (en) | Three-dimensional coordinate measuring device for complex bent pipe | |
| CN111122266B (en) | Device for generating specific local geometric initial defects on outer surface of pipeline | |
| CN103252736B (en) | A kind of tractor crankshaft bracing or strutting arrangement | |
| CN111854671B (en) | Device and method for measuring straightness of inner axis of thin-wall long cylinder | |
| CN201155962Y (en) | Off-grade metal pipes detection device | |
| CN109443163B (en) | Quick detection method for diameter of five-petal inner hole | |
| CN208398776U (en) | A kind of bend pipe special gauge | |
| CN207662329U (en) | The measurement cubing of the depth of parallelism between measurement rod piece difference plane | |
| CN109737910A (en) | A kind of method of determining taper roller large end face ball basal plane maximum gauge arc position | |
| CN108444431A (en) | Pipe fitting method for detecting shape based on three installation points | |
| CN213915611U (en) | Pipeline angle measuring device for hydraulic pipe bender | |
| CN115235315A (en) | Device and method for measuring wall thickness of round corner of thin-wall special pipe | |
| CN210464285U (en) | System for detecting space size of special-shaped part | |
| CN114485358A (en) | Wheel axle parallelism measuring method and measuring platform thereof | |
| CN114905431A (en) | Body-in-white shock tower positioning device, positioning method and detection method | |
| CN111780641A (en) | Utensil is examined to car door hinge | |
| CN110455279B (en) | Six-degree-of-freedom indirect measuring instrument | |
| CN106907982B (en) | Ocean platform spud leg roundness measuring tool | |
| CN110631447A (en) | System and method for detecting space size of special-shaped part | |
| CN112797894A (en) | Tool support for calibrating vision system and calibration method thereof |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210702 |