CN206177176U - A frock for detecting work piece position degree - Google Patents
A frock for detecting work piece position degree Download PDFInfo
- Publication number
- CN206177176U CN206177176U CN201621205437.XU CN201621205437U CN206177176U CN 206177176 U CN206177176 U CN 206177176U CN 201621205437 U CN201621205437 U CN 201621205437U CN 206177176 U CN206177176 U CN 206177176U
- Authority
- CN
- China
- Prior art keywords
- detection
- workpiece
- disk
- frock
- test disks
- 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 provides a frock for detecting work piece position degree is using the utility model discloses a when detection interface position that a frock for detecting work piece position degree detected the work piece spends, connect the work piece location on the locating support to be connected the detection interface of work piece with the detection connector that detects on the disc, like this, if the position of the detection interface of work piece has an error, it will be at horizontal migration under the supporting of spherical roller to detect the disc, utilize the clearance gauge measure four detection plane with the side of detecting the disc between the distance in gap can reach the offset of the axis of detection disc for installed disc's axis to reach the position degree of the detection interface of work piece. Therefore, the utility model discloses a frock for detecting work piece position degree is the measuring position degree conveniently.
Description
Technical field
This utility model is related to a kind of frock for detecting location of workpiece degree, and more particularly to one kind is applied to garage
The detecting tool of industry.
Background technology
In manufacture processing industry, it is often necessary to detect the position degree of part, the detection of position degree is more complicated, typically to make
Frock cubing is used, first measured workpiece is fixed in detecting tool and is located by connecting when test position is spent and with detecting tool, so
Detected with measurer again afterwards.It is especially complicated for the position measurement of irregular structure or larger-size part, and three
Coordinate measuring apparatus is expensive, safeguards and operating cost is all very high.
The structural representation of front suspension oscillating arm of vehicle is illustrated in figure 1, this workpiece 4 is provided with the first positioning of vertical extension
The axis of hole 5 and the second horizontal-extending location hole 6, the first location hole 5 and the second location hole 6 is mutually perpendicular to, on front swing arm
Bulb connecting hole (detects interface, the position degree being numbered in Fig. 1 7) is a critically important index, for the manufacture of automobile
Quality has important impact.But, due to the irregular structure of front suspension oscillating arm of vehicle, stationary positioned is not easy to, so inspection
The position degree for surveying bulb connecting hole is extremely difficult.The position degree of the workpiece of other similar irregular structures of the prior art
Detection it is also extremely difficult, cumbersome during detection, inefficiency.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of for detecting workpiece position
The frock of degree of putting, can easily carry out the detection of position degree.
For achieving the above object and other related purposes, this utility model provides a kind of work for detecting location of workpiece degree
Dress, adopts the following technical scheme that：A kind of frock for detecting location of workpiece degree, including a mounting platform, pacify on mounting platform
Equipped with locating support and installation disk, the locating support is used for and workpiece is located by connecting, and the workpiece has detection interface；Institute
State installation disk and be provided with an open-topped roller cavity volume, the bottom surface of the roller cavity volume is plane, is filled in roller cavity volume
Have one layer of isodiametric spherical roller, to install and be evenly equipped with four detection posts around disk, each detection post have one parallel to
The detection plane of disk axis is installed, four detection planes are equal with the distance between disk axis are installed；Disk top is installed
A test disks are provided with, the test disks are bearing on spherical roller, test disks are located between four detection planes, detection
The upper surface of disk is provided with the detection union joint with the detection Interference fit of workpiece.
Preferably, it is provided with towards the dop for installing disc centre extension, the lower surface of the dop at the top of each detection post
Plane is with the upper surface of test disks, the lower surface of dop coordinates with the upper surface slide of test disks.
Preferably, each dop is provided with one parallel to the confined planes for installing disk axis, on two adjacent dops
Confined planes are mutually perpendicular to；The center for installing disk is provided with the stop block of a rectangle；When test disks are moved to and install circle
Disk axis overlap and stop block four sides respectively correspondingly parallel to the confined planes on four dops when, the side of stop block
With the distance between confined planes less than test disks the distance between side and detection plane.
Preferably, when test disks be moved to install disk axis overlap and stop block four sides respectively correspondingly
During parallel to confined planes on four dops, the distance between the side of test disks and detection plane are 5 millimeters.
Preferably, the roller cavity volume is in annular, and roller cavity volume is coaxially disposed with disk is installed.
Preferably, the depth with diameter greater than roller cavity volume of the spherical roller.
Further, the detection interface is a cylindrical hole, and the detection union joint is spherical.
Further, the upper surface of the test disks is provided with a mounting blocks, and mounting blocks are provided with an installing hole, installing hole
In be plugged with a connecting pole, the detection union joint is located at the top of connecting pole；An annular groove is provided with the middle part of connecting pole, is pacified
Dress block on be additionally provided with one vertically with the pin-and-hole of the installing hole, a backing pin is inserted with pin-and-hole, it is recessed that the backing pin is stuck in the annular
In groove.
Further, the locating support includes the first connecting seat and the second connecting seat, and the first connecting seat is provided with and work
The vertically oriented hole of part location fit, the second connecting seat is provided with the horizontal location hole with workpiece location fit.
As described above, a kind of frock for detecting location of workpiece degree of the present utility model, has the advantages that：
When detecting that the detection interface position of workpiece is spent using a kind of frock for detecting location of workpiece degree of the present utility model, by workpiece
It is located by connecting on locating support, and the detection interface of workpiece is connected with the detection union joint in test disks, so, if
The position of the detection interface of workpiece has error, and test disks will be moved horizontally under the supporting of spherical roller, using clearance gauge
The distances in the gap between four detection planes of measurement and the side of test disks can draw the axis of test disks relative to
The side-play amount of the axis of disk is installed, so as to draw the position degree of the detection interface of workpiece.So, a kind of use of the present utility model
Being capable of easily measurement position degree in the frock of detection location of workpiece degree.
Description of the drawings
Fig. 1 is shown as the structural representation of workpiece.
Fig. 2 is shown as workpiece with a kind of scheme of installation for detecting the frock of location of workpiece degree of the present utility model.
Fig. 3 is shown as a kind of schematic diagram for detecting the frock of location of workpiece degree of the present utility model.
Fig. 4 is shown as in Fig. 3 the structure for installing disk, test disks, the detection part such as post and stop block along A to observation
Schematic diagram.
Fig. 5 is shown as in Fig. 4 the generalized section at B-B.
Fig. 6 is shown as the cross-sectional view of the parts such as mounting blocks, connecting pole and backing pin.
Piece mark explanation
The confined planes of 1 mounting platform 15
The stop block of 2 locating support 16
3 install the mounting blocks of disk 17
The installing hole of 4 workpiece 18
The connecting pole of 5 first location hole 19
The annular groove of 6 second location hole 20
The 7 detection pin-and-holes of interface 21
The backing pin of 8 roller cavity volume 22
The connecting seat of 9 spherical roller 23 first
The 10 detection connecting seats of post 24 second
The 11 vertically oriented holes of detection plane 25
The horizontal location hole of 12 test disks 26
The 13 detection alignment pins of union joint 27 first
The alignment pin of 14 dop 28 second
Specific embodiment
Embodiment of the present utility model is illustrated below by way of specific instantiation, those skilled in the art can be by this theory
Content disclosed by bright book understands easily other advantages of the present utility model and effect.This utility model can also be by addition
Different specific embodiments is carried out or applies, and the every details in this specification can also be based on different viewpoints and answer
With, without departing from it is of the present utility model spirit under carry out various modifications and changes.
Fig. 2 and Fig. 3 is refer to, this utility model provides a kind of frock for detecting location of workpiece degree, including one installs
Platform 1, is provided with locating support 2 and installs disk 3 on mounting platform 1, the locating support 2 is used for and workpiece 4 is located by connecting,
The workpiece 4 has detection interface 7；As shown in figure 5, the installation disk 3 is provided with an open-topped roller cavity volume 8, institute
The bottom surface for stating roller cavity volume 8 is plane, and one layer of isodiametric spherical roller 9 is filled with roller cavity volume 8；Refer to Fig. 4 and Tu
5, to install and be evenly equipped with four detection posts 10 around disk 3, each detection post 10 has one parallel to the inspection for installing the axis of disk 3
Plane 11 is surveyed, four detection planes 11 are equal with the distance between the axis of disk 3 is installed；The top of disk 3 is installed and is provided with a detection
Disk 12, the test disks 12 are bearing on spherical roller 9, and test disks 12 are located between four detection planes 11, detection
The upper surface of disk 12 is provided with the detection union joint 13 coordinated with the detection interface 7 of workpiece 4.Using of the present utility model
When a kind of frock for detecting location of workpiece degree detects detection 7 position degree of interface of workpiece 4, workpiece 4 is located by connecting on
On the support 2 of position, and the detection interface 7 of workpiece 4 is connected with the detection union joint 13 in test disks 12, as shown in figure 5, to hang down
It is straight in the detection plane 11 of the two detection posts 10 in left and right and the straight line through installing the center of disk 3 is X-axis, with perpendicular in addition
The straight line at the detection plane 11 of two detection posts 10 and the center through installing disk 3 is Y-axis, the coordinate set up in horizontal plane
System, the center for installing disk 3 is origin O, so, if the position of the detection interface 7 of workpiece 4 has error, test disks 12
Will move horizontally under the supporting of spherical roller 9, using clearance gauge detection plane 11 and the inspection of the two detection posts 10 in left and right are measured
The gap surveyed between the outer rim of disk 12 can show that detection interface 7, in the side-play amount of X-direction, using clearance gauge two other is measured
Gap between the detection plane 11 and the outer rim of test disks 12 of detection post 10 can draw detects in the Y direction inclined of interface 7
Shifting amount, the position of the detection interface 7 of workpiece 4 can be just calculated according to detection interface 7 side-play amount in X-direction and in the Y direction
Degree of putting deviation.So, a kind of frock for detecting location of workpiece degree of the present utility model being capable of easily measurement position degree.
Line position is entered to the detection interface 7 of workpiece 4 using a kind of frock for detecting location of workpiece degree of the present utility model
During the measurement of degree of putting, it is thus necessary to determine that the positioning datum of workpiece 4, so should be provided with workpiece 4 and determining that locating support 2 is located by connecting
Position interface, the locating interface of workpiece 4 is typically at design and the process segment of workpiece 4 just it has been determined that with the workpiece shown in Fig. 1
As a example by 4, workpiece 4 has the first location hole 5 and the second horizontal-extending location hole 6 for vertically extending, the detection interface 7 of workpiece 4
For a cylindrical hole, in order to detect to the position degree of the detection interface 7 of the workpiece 4 shown in Fig. 1, with the first location hole
5 and second location hole 6 position degree for detecting interface 7 is detected for the positioning datum of workpiece 4, as shown in figure 3, mounting platform
Locating support 2 on 1 includes the first connecting seat 23 and the second connecting seat 24, and the first connecting seat 23 is provided with first with workpiece 4
The vertically oriented hole 25 of the location fit of location hole 5, the second connecting seat 24 is provided with the location fit of the second location hole 6 with workpiece 4
Horizontal location hole 26, the detection union joint 13 in test disks 12 is for spherical；The detection interface 7 of workpiece 4 is connected to test disks
On detection union joint 13 on 12, first location hole 5 and the second location hole 6 of workpiece 4 respectively with locating support 2 on it is vertically fixed
The position hole 25 and coaxial alignment of horizontal location hole 26, is inserted with the first alignment pin 27 in the first location hole 5 and vertically oriented hole 25, the
The second alignment pin 28 is inserted with two location holes 6 and horizontal location hole 26.Position in the XY coordinate systems of the detection interface 7 of workpiece 4
Degree error will be embodied by the side-play amount between the axis of the axis of test disks 12 and installation disk 3, as shown in figure 4,
The gap measured using clearance gauge between the left and right detection plane 11 of two detection posts 10 and the outer rim of test disks 12 can draw
Detection interface 7 measures the detection plane 11 and test disks 12 of two other detection post 10 in the side-play amount of X-direction using clearance gauge
Outer rim between gap can draw the detection side-play amount in the Y direction of interface 7, according to detection interface 7 in X-direction and in Y side
To side-play amount just can calculate workpiece 4 detection interface 7 position degree deviation.
As shown in Figures 2 to 5, the top of each detection post 10 is provided with towards the dop 14 that the center of disk 3 extends is installed, described
The lower surface of dop 14 is plane, the lower surface of dop 14 and the upper table of test disks 12 with the upper surface of test disks 12
Face is slidably matched；So, test disks 12 are limited and can not be taken off between each detection post 10 by the dops 14 on each detection post 10
Go out, and, the lower surface of each dop 14 with the upper table of test disks 12 is towards laminating and relative can slide, so, justify by detection
Disk 12 can keep horizontality and be mounted opposite disk 3 and translate, and the edge of test disks 12 will not be tilted, and ensure that detection
The axis of disk 12 is in parastate with the axis for installing disk 3, so as to ensure that the accuracy of position measurement.It is preferred that
Ground, as shown in Figure 4 and Figure 5, each dop 14 be provided with one parallel to install the axis of disk 3 confined planes 15, adjacent two
Confined planes 15 on dop 14 are mutually perpendicular to；The center for installing disk 3 is provided with the stop block 16 of a rectangle；Work as test disks
12 are moved to and install four sides of the dead in line of disk 3 and stop block 16 respectively correspondingly parallel on four dops 14
During confined planes 15, the side and detection plane 11 of the distance between the side of stop block 16 and confined planes 15 less than test disks 12
The distance between.So, test disks 12 arbitrarily move in the horizontal direction the phase of confined planes 15 of stop block 16 and dop 14
To when, because four sides of stop block 16 are limited by the confined planes 15 on four dops 14, and the side of stop block 16 with
Side and detection plane 11 the distance between of the distance between the confined planes 15 less than test disks 12, so, when stop block 16
Side and confined planes 15 when offseting, also have between the detection plane 11 on the edge and detection post 10 of test disks 12 it is certain between
Gap, it is possible to preventing the edge of test disks 12 and the detection plane 11 of detection post 10 from colliding, it is ensured that detection plane 11 is smooth,
So as to ensure the accuracy that position degree is detected.Preferably, when test disks 12 are moved to and install the dead in line of disk 3 and backstop
Four sides of block 16 respectively correspondingly parallel to the confined planes 15 on four dops 14 when, the side of test disks 12 and detection
The distance between plane 11 is 5 millimeters, and the position degree deviation of the workpiece 4 required with position degree typically will not be very big, generally
Below grade, so, when test disks 12 are moved to and the four sides difference for installing the dead in line of disk 3 and stop block 16
When accordingly parallel to the confined planes 15 on four dops 14, there are 5 millis between the side of test disks 12 and detection plane 11
It is sufficient that gap of rice.
As shown in figure 5, in a kind of frock for detecting location of workpiece degree of the present utility model, installing and being set on disk 3
There is an open-topped roller cavity volume 8, the bottom surface of the roller cavity volume 8 is plane, one layer of equal diameter is filled with roller cavity volume 8
Spherical roller 9, test disks 12 are bearing on spherical roller 9, the lower surface of test disks 12 and the upper surface for installing disk 3
Can be with bonded to each other and relative can slide, it is possible to have less gap, in order to ensure that spherical roller 9 can be to test disks
12 effectively support, the depth with diameter greater than roller cavity volume 8 of the spherical roller 9.In order to ensure test disks 12 equably
Stress, the roller cavity volume 8 is preferably the structure of the axisymmetrical with regard to installing disk 3, described as a kind of preferred mode
Roller cavity volume 8 is in annular, and roller cavity volume 8 is coaxially disposed with disk 3 is installed, and this makes it possible to ensure test disks 12 equably
By the supporting force of spherical roller 9.
As shown in fig. 6, for the ease of installing detection union joint 13, in the upper surface of test disks 12 mounting blocks are provided with
17, mounting blocks 17 are arranged on stop block 16, and mounting blocks 17 are provided with an installing hole 18, and a connecting pole is plugged with installing hole 18
19, the detection union joint 13 is located at the top of connecting pole 19；The middle part of connecting pole 19 is provided with an annular groove 20, mounting blocks
Be additionally provided with 17 one vertically with the pin-and-hole 21 of the installing hole 18, a backing pin 22 is inserted with pin-and-hole 21, the backing pin 22 is stuck in institute
In stating annular groove 20.So, connecting pole 19 is inserted in installing hole 18, then backing pin 22 is inserted in pin-and-hole 21 just can make
Connecting pole 19 is fixed on mounting blocks 17, is easy to the installation and removal of connecting pole 19.
Based on the technical scheme of above-described embodiment, a kind of frock for detecting location of workpiece degree of the present utility model can
The detection of position degree is easily carried out, man-hour is saved, detection efficiency is improved.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art all can be carried out under without prejudice to spirit and the scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in this utility model
All equivalent modifications completed under god and technological thought or change, should be covered by claim of the present utility model.
Claims (9)
1. a kind of frock for detecting location of workpiece degree, is characterized in that, including a mounting platform (1), pacify on mounting platform (1)
Equipped with locating support (2) and install disk (3), the locating support (2) for being located by connecting with workpiece (4), the workpiece (4)
With detection interface (7)；
Installation disk (3) is provided with an open-topped roller cavity volume (8), and the bottom surface of the roller cavity volume (8) is plane,
One layer of isodiametric spherical roller (9) is filled with roller cavity volume (8), to be installed and be evenly equipped with four detection posts around disk (3)
(10), with one parallel to the detection plane (11) for installing disk (3) axis, four are detected plane (11) for each detection post (10)
It is equal with the distance between disk (3) axis is installed；Disk (3) top is installed and is provided with a test disks (12), the detection circle
Disk (12) is bearing on spherical roller (9), and test disks (12) are detected between plane (11) positioned at four, test disks (12)
Upper surface is provided with the detection union joint (13) coordinated with the detection interface (7) of workpiece (4).
2. the frock for being used to detect location of workpiece degree as claimed in claim 1, is characterized in that：The top of each detection post (10)
It is provided with towards the dop (14) for installing the extension of disk (3) center, the lower surface of the dop (14) and the upper table of test disks (12)
Face is plane, and the lower surface of dop (14) coordinates with the upper surface slide of test disks (12).
3. the frock for being used to detect location of workpiece degree as claimed in claim 2, is characterized in that：Each dop (14) is provided with one
Parallel to the confined planes (15) for installing disk (3) axis, the confined planes (15) on two adjacent dops (14) are mutually perpendicular to；Institute
The center for stating installation disk (3) is provided with the stop block (16) of a rectangle；When test disks (12) are moved to and install disk (3) axle
Line overlap and stop block (16) four sides respectively correspondingly parallel to confined planes (15) on four dops (14) when, backstop
The distance between the side of block (16) and confined planes (15) are less than between the side of test disks (12) and detection plane (11)
Distance.
4. the frock for being used to detect location of workpiece degree as claimed in claim 3, is characterized in that：When test disks (12) are moved to
With four sides of disk (3) dead in line and stop block (16) are installed respectively correspondingly parallel to the limit on four dops (14)
During plane (15), the distance between the side of test disks (12) and detection plane (11) are 5 millimeters.
5. the frock for being used to detect location of workpiece degree as claimed in claim 1, is characterized in that：The roller cavity volume (8) is in circle
Annular, roller cavity volume (8) is coaxially disposed with disk (3) is installed.
6. the frock for being used to detect location of workpiece degree as claimed in claim 1, is characterized in that：The spherical roller (9) it is straight
Depth of the footpath more than roller cavity volume (8).
7. the frock for being used to detect location of workpiece degree as claimed in claim 1, is characterized in that：Detection interface (7) is one
Cylindrical hole, the detection union joint (13) is spherical.
8. the frock for being used to detect location of workpiece degree as claimed in claim 1, is characterized in that：The test disks (12) it is upper
Surface is provided with a mounting blocks (17), and mounting blocks (17) are provided with an installing hole (18), and installing hole is plugged with a connecting pole in (18)
(19), top of detection union joint (13) located at connecting pole (19)；
An annular groove (20) is provided with the middle part of connecting pole (19), be additionally provided with mounting blocks (17) one vertically with the installing hole
(18) pin-and-hole (21), is inserted with a backing pin (22) in pin-and-hole (21), the backing pin (22) is stuck in the annular groove (20).
9. the frock for being used to detect location of workpiece degree as claimed in claim 1, is characterized in that：The locating support (2) includes
First connecting seat (23) and the second connecting seat (24), the first connecting seat (23) is provided with vertically fixed with workpiece (4) location fit
Position hole (25), the second connecting seat (24) is provided with the horizontal location hole (26) with workpiece (4) location fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621205437.XU CN206177176U (en) | 2016-11-08 | 2016-11-08 | A frock for detecting work piece position degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621205437.XU CN206177176U (en) | 2016-11-08 | 2016-11-08 | A frock for detecting work piece position degree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206177176U true CN206177176U (en) | 2017-05-17 |
Family
ID=58683316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621205437.XU Active CN206177176U (en) | 2016-11-08 | 2016-11-08 | A frock for detecting work piece position degree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206177176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195250A (en) * | 2017-12-27 | 2018-06-22 | 芜湖中瑞汽车零部件有限公司 | Rear door buckling reinforcing plate cubing |
| CN108534647A (en) * | 2018-05-28 | 2018-09-14 | 上海幸福摩托车有限公司 | Detecting tool and its application method for detecting part error |
-
2016
- 2016-11-08 CN CN201621205437.XU patent/CN206177176U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195250A (en) * | 2017-12-27 | 2018-06-22 | 芜湖中瑞汽车零部件有限公司 | Rear door buckling reinforcing plate cubing |
| CN108534647A (en) * | 2018-05-28 | 2018-09-14 | 上海幸福摩托车有限公司 | Detecting tool and its application method for detecting part error |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107014302B (en) | A kind of scaling method of train wheel wheelboss inner hole diameter laser measurement sensor position | |
| CN102967216A (en) | Steering connector position degree inspection device | |
| CN206177176U (en) | A frock for detecting work piece position degree | |
| CN106949852B (en) | Ring throws the detection device and detection method of processing correction-plate surface shape error | |
| CN104034478B (en) | The support arrangement that in centroid measurement, ball-and-socket, needling, plane combine | |
| CN109211055A (en) | A kind of combination instrument cubing | |
| CN102207365A (en) | Method for inspecting complex space integration position of steering knuckle type part | |
| CN107990856A (en) | A kind of volumetric position error detection method for outranging workpiece | |
| CN204142150U (en) | Engine support position dimension cubing | |
| CN103983170B (en) | Plane distance gauge for clamp type brake support | |
| CN106168458A (en) | A kind of device detecting T-shaped hole axiality | |
| CN206131969U (en) | Detect T shape holecoaxiality's device | |
| CN204666093U (en) | A kind of non-contact measurement mechanical arm | |
| CN102840815A (en) | Assembled type multifunctional workpiece detector for fitter | |
| CN105910521A (en) | Three-coordinate measurement device | |
| CN106247911A (en) | A kind of detection method of T-shaped hole axiality | |
| CN205825842U (en) | A kind of special-shaped part assembling hole position degree dedicated test frock | |
| CN207019568U (en) | Integral type semi-mounted vehicle bridge brake holder detection means | |
| CN202420360U (en) | Automobile tail light support measurement checking tool | |
| CN206019607U (en) | A kind of line slideway accuracy detecting device | |
| CN205332965U (en) | Universal joint lane height of center measuring tool | |
| CN107702632A (en) | The method of testing and system of perpendicularity between a kind of two planes | |
| CN210558756U (en) | Upper lofting tool and elevator guide rail lofting inspection tool | |
| CN108151605A (en) | A kind of semitrailer shaft brake assembly checking tool | |
| CN207717006U (en) | A kind of Quick detection tool of auto parts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |