CN214583088U - Workpiece roundness measuring device - Google Patents
Workpiece roundness measuring device Download PDFInfo
- Publication number
- CN214583088U CN214583088U CN202120721894.9U CN202120721894U CN214583088U CN 214583088 U CN214583088 U CN 214583088U CN 202120721894 U CN202120721894 U CN 202120721894U CN 214583088 U CN214583088 U CN 214583088U
- Authority
- CN
- China
- Prior art keywords
- frame
- base
- lead screw
- objective table
- motor
- 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.)
- Expired - Fee Related
Links
- 238000013519 translation Methods 0.000 claims abstract description 19
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Abstract
The utility model discloses a work piece circularity measuring device, including the frame, be used for placing the measured work piece and establish rotatable first objective table in the frame, establish image acquisition device, the symmetry that is used for gathering measured work piece image information in the frame and establish in the frame both sides and drive the base telecontrol equipment of image acquisition device translation, establish on the base telecontrol equipment and measure the grating chi of translation distance, the base telecontrol equipment top is equipped with image acquisition device. Measuring personnel only need be with the rotatory a week of work piece and gather the image, can obtain the circularity value, and then the engineering technical personnel of being convenient for judge whether it satisfies the working requirement, the utility model discloses can replace traditional measuring mode, make the measurement of big work piece nimble more accurate, be convenient for measure and reset.
Description
Technical Field
The utility model belongs to the technical field of measuring instrument and specifically relates to a work piece circularity measuring device is related to.
Background
At present, the roundness measuring instrument has two types, namely a sensor rotary type and a workbench rotary type, and mainly comprises a sensor, an amplifier, a filter and an output device. The roundness measuring instrument on the market is only suitable for measuring small workpieces, and has poor expansibility. The roundness of a large workpiece with the diameter of more than 300mm is measured by the traditional manual measurement mode. The general roundness measuring instrument is easily influenced by factors such as main shaft rotation precision, workpiece installation error and the like, so that the measurement precision of the workpiece is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome not enough in the prior art, solve the difficult point that is subject to the work piece size at the in-process of measuring the work piece circularity, avoid the installation error influence, provide a work piece circularity measuring device, measurement personnel only need with the rotatory a week of work piece and gather the image, can obtain the circularity value, and then the engineering technical personnel of being convenient for judges whether it satisfies the operational requirement, in time takes corresponding enhancement measure.
The utility model provides a technical scheme that above-mentioned technical problem adopted is: the utility model provides a work piece circularity measuring device, includes the frame, is used for placing the measured work piece and establishes the rotatable first objective table in the frame, establishes the image acquisition device who is used for gathering measured work piece image information in the frame, the symmetry is established in frame both sides and is driven the base telecontrol equipment of image acquisition device translation, establishes the grating chi on base telecontrol equipment and measure the translation distance, base telecontrol equipment top is equipped with image acquisition device. The first objective table is rotatable, so that a workpiece to be measured arranged on the first objective table can rotate, the collected image is combined with the translation distance information of the grating ruler for image analysis, a left pole and a right pole are obtained, and the roundness value of a large workpiece can be obtained.
Preferably, the image acquisition device comprises an image acquisition device, a guide rail, a first sliding block arranged on the guide rail, a first supporting side arranged on the rack, a first lead screw, a U-shaped support, a first fixing frame provided with the image acquisition device, a first coupler and a first motor, wherein the first lead screw is fixedly arranged on the first supporting side, the U-shaped support is fixedly arranged on the first sliding block and connected with the first lead screw, the first motor is connected with the first lead screw through the first coupler, and the first fixing frame is fixedly connected with the U-shaped support. The first fixing frame comprises a nut and an anti-skid gasket, and the fixing of various models of image collectors is completed through the adjustment of the nut. The first motor is started, the first motor drives the first lead screw to rotate through the first coupler, the first lead screw rotates to drive the U-shaped support to move up and down, the U-shaped support moves up and down to drive the first fixing frame to move, and the first fixing frame moves to drive the image collector to move. The image collector is installed on a first fixing frame, is connected with a first sliding block through a U-shaped support, and is arranged through a first motor, so that the image collector can move up and down, and when workpieces with different thicknesses are collected, the object distance is ensured to be unchanged.
Preferably, the rack comprises a vertical rack, a second fixing frame and a base rack, the first supporting side and the second fixing frame are arranged on the vertical rack, the first objective table, the vertical rack and the base moving device are arranged on the base rack, and the grating ruler is symmetrically and fixedly arranged on one side of the base rack.
Preferably, a first groove is formed in the base frame, the first object stage is arranged in the middle of the first groove, and the base motion devices are symmetrically fixed on two sides of the first groove; and a second groove is formed in the vertical rack, and the first supporting side and the second fixing frame are arranged on the second groove.
Preferably, the backlight source is arranged on the second fixing frame. The image collector and the backlight source are horizontally arranged, and the central points of the image collector and the backlight source are kept on the same vertical circumference. The backlight can make the image collected by the image collector clearer.
Preferably, the base motion device comprises a base, a second lead screw, a second sliding block, a second motor, a second objective table and a second supporting side, wherein the second sliding block is arranged on the base and connected with the second lead screw, the second supporting side is fixed on the base frame, the second objective table is fixedly arranged above the second sliding block and below the vertical frame, the second motor is connected with the second lead screw, the second lead screw is fixedly arranged on the second supporting side, and an image acquisition device is arranged on the second objective table. Image collector, guide rail, first slider, first support side, first lead screw, U type support, first mount, first shaft coupling, first motor are all installed on the second objective table. The second motor is started, the second motor drives the second lead screw to rotate, the second lead screw drives the second sliding block to move, the second sliding block moves to drive the second objective table to move, the second objective table moves to drive the vertical rack arranged above the second objective table to move, the vertical rack moves to drive the image acquisition device arranged on the vertical rack to move, and the grating ruler is arranged on the base. Through the setting of base telecontrol equipment for the device can carry out the translation according to the work piece circumference size of being surveyed, ensures to obtain the image respectively in work piece both sides.
Preferably, the grating scale comprises a grating read head disposed on the base and located on one side of the second stage. The grating ruler also comprises a cable, the grating reading head is connected with the cable, and the cable is connected with the computer, so that the data information of the grating reading head can be transmitted into the computer.
Preferably, the first stage comprises a table top, a third coupling, a rotating shaft and a third motor, and the table top, the third coupling, the rotating shaft and the third motor are connected in sequence. The third motor is arranged on the base frame.
A method for measuring the roundness of a workpiece comprises the following steps:
the method comprises the following steps: the image collector collects the image information of the standard part, and the number of pixel points of four parts is N1、N2、N3、N4The actual sizes of the four parts of the standard component are M, and the millimeter values corresponding to the pixels of each point of the left and right images are obtained through calculation and are X respectivelyA、XBThe concrete formula is as follows:
XA＝1/2*L*1/N1+1/N2；
XB＝1/2*L*1/N3+1/N4；
step two: installing a workpiece to be measured on the first objective table, adjusting a second slide block on the base motion device to symmetrically translate towards two sides, driving the second objective table to translate by the second slide block, driving the grating ruler to translate by the second objective table, reading data of the grating ruler to obtain translation amount of the image collector, wherein the single-side translation amount is delta x until the outline of the workpiece to be measured falls within an acquirable range;
step three: starting an image collector and a third motor to drive a first objective table to rotate, collecting the outline image of a detected workpiece rotating for one circle by the image collector, obtaining two images every time of collection, marking a left pole A of a left image and a right pole B of a right image, marking vertical center lines of the two images, and detecting the number of pixel points at the distance from the left pole A to the left image center line as NAThe number of pixel points from the right pole B to the right image center line is NB；
Step four: calculating the actual distance LA、LBThe specific calculation formula is as follows:
LA＝XA*NA；
LB＝XB*NB；
step five: correcting and calculating the collected image to obtain the diameter D1The specific calculation formula is as follows:
D1＝L+2Δx-LA-LBwherein L is a measurement threshold obtained according to factory calibration.
Preferably, the second step comprises the following steps:
step 1: mounting a workpiece to be measured on a first objective table, and ensuring that the outline of the workpiece to be measured is parallel to an image collector;
step 2: starting a first motor, wherein the first motor drives a first lead screw to rotate through a first coupler, the first lead screw rotates to drive a U-shaped support to move up and down, the U-shaped support moves up and down to drive a first fixing frame to move, and the first fixing frame moves to drive an image collector to move, so that the height of the image collector is adjusted, and the object distance is kept unchanged;
and step 3: and starting a second motor, driving a second lead screw to rotate by the second motor, driving a second sliding block to move by the second lead screw, driving a second objective table to move by the second sliding block, driving a grating ruler to translate by the second objective table, reading the data of the grating ruler to obtain the translation amount of the image collector, wherein the unilateral translation amount is delta x until the profile of the workpiece to be measured falls in the collectable range.
Preferably, the following is also included: calculating each pair of images collected by the image collector to obtain the diameter D of the workpiece to be measuredn. And the contour circularity value of the measured workpiece can be comprehensively analyzed according to all the diameters.
The utility model has the advantages that:
1. the utility model can replace the traditional measuring mode, so that the measurement of the large workpiece is more flexible and accurate, and the measurement and the reset are convenient;
2. the utility model has higher accuracy, controllable error within 0.1mm, higher durability of the instrument, and no detection failure caused by the change of the internal standard value over time;
3. in the aspect of practical performance, the utility model has simple process structure, low cost and convenient operation;
4. through the structural design of the rotating table, the system can more accurately measure the roundness, thereby avoiding errors possibly occurring in the process of manually measuring the roundness of a large workpiece, and simultaneously saving a large amount of time
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a structural diagram of the frame of the present invention;
fig. 3 is a front view of the image capturing device of the present invention;
fig. 4 is a schematic structural view of the first fixing frame of the present invention;
FIG. 5 is a top view of the base moving device of the present invention
FIG. 6 is a cross-sectional view of FIG. 5;
fig. 7 is a front view of the first stage of the present invention;
fig. 8 is a calibration schematic of the present invention;
FIG. 9 is an actual measurement schematic diagram of the present invention;
in the figure: 1. the device comprises a frame, 3, an image acquisition device, 4, a grating ruler, 5, a first object stage, 6, a base motion device, 7, an image acquisition device, 8, a backlight source, 21, a vertical frame, 211, a second groove, 22, a second fixing frame, 23, a base frame, 231, a first groove, 31, a guide rail, 32, a first sliding block, 33, a first supporting side, 34, a first lead screw, 35, a U-shaped support, 36, a first fixing frame, 39, a first coupling, 310, a first motor, 41, a second motor, 42, a second object stage, 43, a second supporting side, 45, a grating reading head, 46, a cable, 47, a second lead screw, 48, a second sliding block, 49, a base, 51, a table top, 52, a third coupling, 53, a rotating shaft, 54, a third motor, 61, a standard part, 62, a left image, 63 and a right image.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
As shown in fig. 1-9, the utility model relates to a workpiece roundness measuring device, including frame 1, be used for placing the measured workpiece and establish the rotatable first objective table 5 in frame 1, establish image acquisition device 3 that is used for gathering measured workpiece image information in frame 1, the symmetry is established in frame 1 both sides and is driven base 49 telecontrol equipment 6 of image acquisition device 3 translation, establish on base 49 telecontrol equipment 6 and measure the grating chi 4 of translation distance, base 49 telecontrol equipment 6 top is equipped with image acquisition device 3. The first stage 5 is nested in the middle of the first groove 231 of the base frame 23, and the grating ruler is installed on the same side of the upper plane of the base frame 23 through a bolt.
The frame 1 includes vertical frame 21, second mount 22, base frame 23, and first support side 33, second mount 22 all establish on vertical frame 21, and first objective table 5, vertical frame 21, base 49 telecontrol equipment 6 all establish on base frame 23, and grating chi 4 symmetry fixed mounting is in one side of base frame 23. The vertical frame 21 is mounted on the second object stage 42 perpendicular to the base frame 23, and the symmetrically distributed adjustable image capturing devices 3 are mounted in the first recess 211 of the vertical frame 21 and then fixedly mounted on the second object stage 42 in the base moving device 6 by bolts.
The base frame 23 is provided with a first groove 231, the first object stage 5 is arranged in the middle of the first groove 231, and the base 49 moving devices 6 are symmetrically fixed on two sides of the first groove 231; the vertical frame 21 is provided with a first groove 211, and the first supporting side 33 and the second fixing frame 22 are both arranged on the first groove 211.
The base 49 moving device 6 comprises a base 49, a second lead screw 47, a second sliding block 48 arranged on the base 49 and connected with the second lead screw 47, a second motor 41, a second object stage 42 and a second supporting side 43 fixed on the base frame 23, wherein the second object stage 42 is fixedly arranged above the second sliding block 48 and arranged below the vertical frame 21, the second motor 41 is connected with the second lead screw 47, the second lead screw 47 is fixedly arranged on the second supporting side 43, and the second object stage 42 is provided with an image acquisition device 3.
And the backlight source 8 is also included, and the backlight source 8 is arranged on the second fixing frame 22.
The grating scale 4 includes a grating read head 45, and the grating read head 45 is provided on a base 49 and located on one side of the second stage 42. The grating ruler 4 further comprises a cable 46, and the cable 46 is connected with a computer so that the computer can read the information of the grating reading head 45. The grating read head 45 is fixed to the front side of the second stage 42 of the base moving device 6 by bolts.
The first stage 5 includes a table-board 51, a third coupler 52, a rotating shaft 53, and a third motor 54, and the table-board 51, the third coupler 52, the rotating shaft 53, and the third motor 54 are connected in sequence.
A method for measuring the roundness of a workpiece comprises the following steps:
the method comprises the following steps: the image collector 7 collects the image information of the standard part 61, and reads the pixel points of four positions to be N respectively1、N2、N3、N4The actual sizes of the four parts of the standard part 61 are all M, and the millimeter values corresponding to the pixels of each point of the left and right images are obtained through calculation and are respectively XA、XBThe concrete formula is as follows:
XA＝1/2*L*1/N1+1/N2；
XB＝1/2*L*1/N3+1/N4；
step two: a workpiece to be measured is installed on the first object stage 5, a second sliding block 48 on a moving device 6 of an adjusting base 49 is symmetrically translated towards two sides, the second sliding block 48 drives a second object stage 42 to translate, the second object stage 42 translates to drive a grating ruler 4 to translate, data of the grating ruler 4 is read to obtain translation amount of the image collector 7, and the unilateral translation amount is delta x until the outline of the workpiece to be measured falls within an acquirable range;
step three: starting the image collector 7 and starting the third motor 54 to drive the first objective table 5 to rotate, collecting the outline image of the detected workpiece rotating for one circle by the image collector 7, obtaining two images every time of collection, marking a left pole A of the left image 62, marking a right pole B of the right image 63, marking vertical center lines of the two images, and detecting the pixel point number N of the distance from the left pole A to the center line of the left image 62AThe number of pixel points from the right pole B to the right image 63 center line is NB；
Step four: calculating the actual distance LA、LBThe specific calculation formula is as follows:
LA＝XA*NA；
LB＝XB*NB；
step five: correcting and calculating the collected image to obtain the diameter D1The specific calculation formula is as follows:
D1＝L+2Δx-LA-LBwherein L is a measurement threshold obtained according to factory calibration.
The second step comprises the following steps:
step 1: the workpiece to be measured is arranged on a first objective table 5, and the outline of the workpiece to be measured is ensured to be parallel to an image collector 7;
step 2: starting a first motor 310, wherein the first motor 310 drives a first lead screw 34 to rotate through a first coupler 39, the first lead screw 34 rotates to drive a U-shaped support 35 to move up and down, the U-shaped support 35 moves up and down to drive a first fixing frame 36 to move, and the first fixing frame 36 moves to drive an image collector 7 to move, so that the height of the image collector 7 is adjusted, and the object distance is kept unchanged;
and step 3: and starting the second motor 41, wherein the second motor 41 drives the second lead screw 47 to rotate, the second lead screw 47 drives the second slider 48 to move, the second slider 48 drives the second objective table 42 to move, the second objective table 42 drives the grating ruler 4 to move in a translation manner, data of the grating ruler 4 is read to obtain the translation amount of the image collector 7, and the unilateral translation amount is delta x until the outline of the workpiece to be measured falls within the collectable range.
The method also comprises the following steps: calculating each pair of images collected by the image collector 7 to obtain the diameter D of the workpiece to be measuredn。
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A workpiece roundness measuring device is characterized in that: including frame (1), be used for placing the measured work piece and establish rotatable first objective table (5) in frame (1), establish image acquisition device (3) that are used for gathering measured work piece image information in frame (1), base (49) telecontrol equipment (6) of establishing in frame (1) both sides and driving image acquisition device (3) translation, establish on base (49) telecontrol equipment (6) and measure translation distance's grating chi (4), base (49) telecontrol equipment (6) top is equipped with image acquisition device (3).
2. The workpiece roundness measuring apparatus according to claim 1, characterized in that: image acquisition device (3) include image collector (7), guide rail (31), install first slider (32) on guide rail (31), install first support side (33) on frame (1), first lead screw (34), U type support (35), install first mount (36) of image collector (7), first shaft coupling (39), first motor (310), first lead screw (34) fixed mounting is on first support side (33), U type support (35) fixed mounting is on first slider (32) and is connected with first lead screw (34), first lead screw (34) are connected through first shaft coupling (39) in first motor (310), first mount (36) and U type support (35) fixed connection.
3. The workpiece roundness measuring apparatus according to claim 2, characterized in that: frame (1) includes vertical frame (21), second mount (22), base frame (23), and first support side (33), second mount (22) are all established on vertical frame (21), and first objective table (5), vertical frame (21), base (49) telecontrol equipment (6) are all established on base frame (23), and grating chi (4) symmetry fixed mounting is in one side of base frame (23).
4. The workpiece roundness measuring apparatus according to claim 3, wherein: a first groove (231) is formed in the base frame (23), the first object stage (5) is arranged in the middle of the first groove (231), and the base (49) moving device (6) is symmetrically fixed on two sides of the first groove (231).
5. The workpiece roundness measuring apparatus according to claim 3 or 4, wherein: a second groove (211) is formed in the vertical rack (21), and the first supporting side (33) and the second fixing frame (22) are arranged on the second groove (211).
6. The workpiece roundness measuring apparatus according to claim 5, wherein: the LED lamp further comprises a backlight source (8), and the backlight source (8) is arranged on the second fixing frame (22).
7. The workpiece roundness measuring apparatus according to claim 6, wherein: base (49) telecontrol equipment (6) includes base (49), second lead screw (47), establish second slider (48) on base (49) and be connected with second lead screw (47), second motor (41), second objective table (42), fix second support side (43) on base frame (23), second objective table (42) fixed mounting is in second slider (48) top and establish in vertical frame (21) below, second motor (41) are connected with second lead screw (47), second lead screw (47) fixed mounting is on second support side (43), be equipped with image acquisition device (3) on second objective table (42).
8. The workpiece roundness measuring apparatus according to claim 7, wherein: the grating scale (4) comprises a grating reading head (45), and the grating reading head (45) is arranged on the base (49) and is positioned on one side of the second objective table (42).
9. The workpiece roundness measuring apparatus according to claim 1, 2, 3, 4, 6, 7, or 8, characterized in that: the first objective table (5) comprises a table top (51), a third coupler (52), a rotating shaft (53) and a third motor (54), and the table top (51), the third coupler (52), the rotating shaft (53) and the third motor (54) are sequentially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120721894.9U CN214583088U (en) | 2021-04-09 | 2021-04-09 | Workpiece roundness measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120721894.9U CN214583088U (en) | 2021-04-09 | 2021-04-09 | Workpiece roundness measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214583088U true CN214583088U (en) | 2021-11-02 |
Family
ID=78358066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120721894.9U Expired - Fee Related CN214583088U (en) | 2021-04-09 | 2021-04-09 | Workpiece roundness measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214583088U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116734769A (en) * | 2023-08-14 | 2023-09-12 | 宁德时代新能源科技股份有限公司 | Cylindricity detection device and detection method for cylindrical battery cell |
| CN117367283A (en) * | 2023-12-05 | 2024-01-09 | 宁德时代新能源科技股份有限公司 | Detection system and method for cylindrical battery cell |
-
2021
- 2021-04-09 CN CN202120721894.9U patent/CN214583088U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116734769A (en) * | 2023-08-14 | 2023-09-12 | 宁德时代新能源科技股份有限公司 | Cylindricity detection device and detection method for cylindrical battery cell |
| CN116734769B (en) * | 2023-08-14 | 2023-12-01 | 宁德时代新能源科技股份有限公司 | Cylindricity detection device and detection method for cylindrical battery cell |
| CN117367283A (en) * | 2023-12-05 | 2024-01-09 | 宁德时代新能源科技股份有限公司 | Detection system and method for cylindrical battery cell |
| CN117367283B (en) * | 2023-12-05 | 2024-04-12 | 宁德时代新能源科技股份有限公司 | Detection system and method for cylindrical battery cell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214583088U (en) | Workpiece roundness measuring device | |
| WO2016150005A1 (en) | Automatic detection method and apparatus for digital caliper | |
| CN109238157B (en) | Turntable radius and installation eccentric four-index coordinate increment detection method and detection device | |
| CN108188835B (en) | Machine vision-based numerical control machine tool spindle thermal elongation testing device and testing method | |
| CN112815866A (en) | Internal thread detector based on laser profile scanning and detection method thereof | |
| CN204405004U (en) | Valve spring physical dimension measures testing machine | |
| CN105698670A (en) | Machine tool guide rail installation plane parallelism quick measurement device and method | |
| CN211827005U (en) | Multi-functional detection device of five-axis numerical control machine tool based on multi-eye vision | |
| CN110470247B (en) | Device and method for detecting coaxiality of inner and outer circular surfaces of part | |
| CN112857258A (en) | Image-based large workpiece roundness measuring device and method | |
| CN110906838A (en) | Three-lobe bearing raceway profile measuring instrument | |
| CN114413764A (en) | Notebook computer shell size detection method and device | |
| CN108507472B (en) | Non-contact visual detection method for size of automobile safety airbag seal | |
| CN113418449A (en) | Engine blade body and edge plate measuring device and measuring method | |
| CN110057555B (en) | Method for detecting flatness of line laser | |
| CN112344885A (en) | Step shaft flatness detection device and flatness detection method thereof | |
| CN210242694U (en) | Detection tool and detection system for detecting circular runout | |
| CN108731615B (en) | Equipment and method for detecting curved glass panel | |
| CN110044311A (en) | A kind of dovetail groove guide rail slide unit measuring device and its measurement method | |
| CN216847526U (en) | Automatic detection system for silicon single crystal rod | |
| CN214502335U (en) | Bevel gear shaft gear taper detection device | |
| CN106403814B (en) | Visual pattern machine and its detection method | |
| CN203132503U (en) | Product appearance size detection machine | |
| CN209745146U (en) | Micrometer calibrating device | |
| CN107014421B (en) | Photoelectric encoder code disc non-uniform error detection method based on bidirectional black-white ratio |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211102 |