CN110260768A - A kind of port flatness checking device of emergency cut-off gate valve - Google Patents
A kind of port flatness checking device of emergency cut-off gate valve Download PDFInfo
- Publication number
- CN110260768A CN110260768A CN201910543849.6A CN201910543849A CN110260768A CN 110260768 A CN110260768 A CN 110260768A CN 201910543849 A CN201910543849 A CN 201910543849A CN 110260768 A CN110260768 A CN 110260768A
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- Prior art keywords
- gate valve
- emergency cut
- port
- amesdial
- measured
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a kind of port flatness checking devices of emergency cut-off gate valve, it is related to emergency cut-off gate valve field, including testing stand, first motor, bracket, amesdial and stabilizers, the end of the testing stand is equipped with instrument connection, the first motor is located at the surface of instrument connection, the output shaft of first motor is connected by power with the stabilizers, the amesdial is located at the bottom face of testing stand, at work, after stabilizers stablize emergency cut-off gate valve to be measured, first motor starts and emergency cut-off gate valve to be measured is driven to rotate, during rotation, the detecting head of amesdial is remained with the port of emergency cut-off gate valve to be measured and is contacted, the flatness of its port can be detected in this way, the apparatus structure is simple, it is easily operated, reduce Check-Out Time, very high profession is not needed simultaneously to require, such manufacturing enterprise The number and quantity of the port flatness detection to emergency cut-off gate valve can be increased, the risk for flowing out bad products significantly reduces.
Description
Technical field
The present invention relates to emergency cut-off gate valve field, in particular to the port flatness of a kind of emergency cut-off gate valve detects dress
It sets.
Background technique
Quick action emergency valve, which is called, does safety cut-off valve, refers to when encountering emergency case, and valve can be closed rapidly
Or open, avoid the generation of accident.Anxious stop valve has splendid technical performance, underload loss and high reliability.
Suitable for fuel gas such as coal gas, natural gas and liquefied petroleum gas, it is widely used in gas transmission pipeline net work system, gas thermal energy factory vehicle
Between, the safety devices of pipeline for gas and house shelter.Gas quick action emergency valve is open type pulse trigger type type solenoid valve, is had
Accident is self-locking and hand-reset function.
Applicants have discovered that: the manufacturing enterprise having mainly by flatness measuring instrument to the single port flatness of quick action emergency valve into
Row detection, because of its inspection cost height, required time is long, and profession requirement is high, therefore to the number and quantity of the detection of its flatness
It is very limited, increase the risk of bad products outflow.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of port flatness checking device of emergency cut-off gate valve, with
The manufacturing enterprise for solving to have in the prior art is detected mainly by single port flatness of the flatness measuring instrument to quick action emergency valve,
Because of its inspection cost height, required time is long, and profession requires height, therefore has very much to the number and quantity of the detection of its flatness
The technical issues of limiting, increasing the risk of bad products outflow.
Based on a kind of above-mentioned purpose port flatness checking device of emergency cut-off gate valve provided by the invention, including test
The end of table top, first motor, bracket, amesdial and stabilizers, the testing stand is equipped with instrument connection, and the bracket is fixed on
Testing stand, the first motor are fixed on bracket, and are located at the surface of instrument connection, the output shaft of first motor and described
Stabilizers are connected by power, and the amesdial is located at the bottom face of testing stand；Emergency cut-off gate valve to be measured is stablized in stabilizers
Afterwards, first motor drives emergency cut-off gate valve rotation to be measured, during rotation, the detecting head of amesdial and emergency cut-off to be measured
The port of gate valve remains contact, so that the flatness to its port detects.
Further, including rotation section, the rotary part is in the instrument connection edge of testing stand bottom face, rotation section
It is fixedly connected with amesdial；The probe of the amesdial does not extend in instrument connection, make amesdial can under the drive of rotation section,
Far from instrument connection；Meanwhile in test, the rotation section can drive amesdial living in the port range of emergency cut-off gate valve
It is dynamic.
Further, the rotation section includes rotating bar and the second motor, and second motor is fixed on testing stand
One end of bottom face, the output shaft of the second motor and the rotating bar is keyed, and the amesdial is fixed on the another of rotating bar
One end.
Further, the stabilizers include locating shaft, drive disk, poke rod and at least three groups of driven members, and described
The output shaft of one motor is connect with the locating shaft by shaft coupling, and the side of the locating shaft is equipped with opposite with driven member
The retraction slot answered, the drive disk are threadedly coupled with locating shaft, and the end face of drive disk is equipped with T shape circular groove, described poke rod one end
Equipped with T shape end, T shape end is slidably connected with T shape circular groove, and the driven member is located in retraction slot, the poke rod
The other end contacted with driven member, cover in emergency cut-off gate valve to be measured in locating shaft, by rotate driving disk, make poke rod
Drive driven member that emergency cut-off gate valve to be measured is stable at locating shaft.
Further, the driven member is equipped with three groups, and driven member includes gag lever post and elastic component, one end of gag lever post
Be rotatablely connected with shaft, the shaft is fixed on the inner sidewall of retraction slot, and the inside of the locating shaft is equipped with inside groove, and inside groove with
Retraction slot is connected, and one end of the elastic component is fixedly connected with the side wall of inside groove, and the other end and the gag lever post of elastic component are fixed
Connection, an end of the poke rod and the other end of gag lever post connect.
Further, including position-limit mechanism, the inside of the testing stand are equipped with inner cavity, and the inner cavity is connected with instrument connection
It is logical, the fiber mechanism be located at it is interior intracavitary, for after emergency cut-off gate valve to be measured is stablized by stabilizing mechanism, will it is to be measured promptly
The port of cutting gate valve is fixed.
Further, the position-limit mechanism includes cylinder, drive rod, gear, coupled wheel and by lever, and the cylinder is fixed
In the inside of testing stand, the output shaft of cylinder is fixedly connected with one end of drive rod, and the drive rod is slidably connected with inner cavity,
Two symmetric sides of drive rod are equipped with spur rack, and the two sides of drive rod are symmetrically arranged with the gear, the gear of the gear
Axis is fixed on the side wall of inner cavity, and gear is engaged with spur rack, and the coupled wheel is engaged with gear, and coupled wheel is sector, coupled wheel
Center location be equipped with universal driving shaft, the universal driving shaft is fixed on the side wall of inner cavity, described to be fixed on coupled wheel by one end of lever,
The other end by the other end of lever and drive rod is equipped with limit end, after cylinder starting, makes by the limit of lever
The port of emergency cut-off gate valve to be measured is fixedly clamped by end and the limit end of drive rod simultaneously.
Further, the limit end towards the end face of instrument connection be arc, and the end face be equipped with it is several can be along test
The idler wheel of hole horizontal face rotation.
Further, the detecting head of the amesdial is connect with terminal device signal.
Further, the terminal device includes but is not limited to mobile phone or computer.
Beneficial effects of the present invention: using a kind of port flatness checking device of emergency cut-off gate valve of the invention,
When work, after stabilizers stablize emergency cut-off gate valve to be measured, first motor starts and emergency cut-off gate valve to be measured is driven to turn
Dynamic, during rotation, the detecting head of amesdial is remained with the port of emergency cut-off gate valve to be measured and is contacted, in this way can be right
The flatness of its port detects, and the apparatus structure is simple, easily operated, reduces Check-Out Time, while not needing very high special
Industry requirement, such manufacturing enterprise can increase the number and quantity of the port flatness detection to emergency cut-off gate valve, make bad production
The risk of product outflow significantly reduces.
Detailed description of the invention
Fig. 1 is the cross-sectional view of pedestal in the specific embodiment of the embodiment of the present invention；
Fig. 2 is the side partial sectional view of the specific embodiment of the embodiment of the present invention；
Fig. 3 is the enlarged drawing of locating shaft in Fig. 2；
Fig. 4 is the structural schematic diagram of main shaft in the specific embodiment of the embodiment of the present invention；
Fig. 5 is the bottom view of pedestal in the specific embodiment of the embodiment of the present invention；
Fig. 6 is the partial side view of pedestal in the specific embodiment of the embodiment of the present invention.
Wherein, 1- testing stand, the inner cavity 2-, 3- instrument connection, 4- cylinder, 5- drive rod, 6- gear, 7- coupled wheel, 8- quilt
Lever, 9- idler wheel, 10- locating shaft, 11- first motor, 12- bracket, 13- limit end, 14- drive disk, 15- retraction slot, 16-
Poke rod, 17-T shape circular groove, 18- gag lever post, 19- inside groove, 20- elastic component, 21- rotating bar, the second motor of 22-, 23- thousand divide
Table.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Based on above-mentioned purpose, the first aspect of the invention proposes a kind of port flatness inspection of emergency cut-off gate valve
An embodiment of device is surveyed, as shown in Figure 1, including testing stand 1, first motor 11, bracket 12, amesdial 23 and stablizing
The end in portion, testing stand 1 is equipped with instrument connection 3, and bracket 12 is fixed on testing stand 1, and first motor 11 is fixed on bracket 12, and
Positioned at the surface of instrument connection 3, output shaft and the stabilizers of first motor 11 are connected by power, and amesdial 23 is located at testing stand 1
Bottom face；At work, it surveys emergency cut-off gate valve and passes through instrument connection 3 from 1 bottom of testing stand, and will under stabilizers effect
Emergency cut-off gate valve to be measured is stablized, and then first motor 11 starts and emergency cut-off gate valve to be measured is driven to rotate, in rotation process
In, the detecting head of amesdial 23 is remained with the port of emergency cut-off gate valve to be measured and is contacted, and can be put down in this way to its port
The detection of face degree, the apparatus structure is simple, easily operated, reduces Check-Out Time, while not needing very high profession and requiring, in this way
Manufacturing enterprise can increase the number and quantity of the port flatness detection to emergency cut-off gate valve, the risk for flowing out bad products
It significantly reduces.
As another embodiment of the invention, in the above-described embodiments, as shown in figure 5, including rotation section, rotary part
In 3 edge of instrument connection of 1 bottom face of testing stand, rotation section is fixedly connected with amesdial 23；The probe of amesdial 23 does not prolong
It extends in instrument connection 3, makes amesdial 23 can be under the drive of rotation section, far from instrument connection 3；Meanwhile in test, rotation section can
Drive amesdial 23 movable in the port range of emergency cut-off gate valve.Preferably, as shown in fig. 6, rotation section includes rotating bar
21 and second motor 22, the second motor 22 be fixed on the bottom face of testing stand 1, the output shaft and rotating bar 21 of the second motor 22
One end key connection, amesdial 23 is fixed on the other end of rotating bar 21.
Herein, before detection, amesdial 23 is made in the orientation of instrument connection 3, not facilitate operator by the second motor 22
Emergency cut-off gate valve to be measured is stable at stabilizers by instrument connection, when detecting, makes thousand points by the rotation of the second motor 22
The port end face contact of the probe and emergency cut-off gate valve to be measured of table 23, after contact, first motor 11 starts, and drives to be measured urgent
Gate valve rotation is cut off, during rotation, amesdial 23 detects the plane of the port of emergency cut-off gate valve to be measured with rotating with it
Degree, after one circle of emergency cut-off gate valve to be measured rotation, the starting of the second motor 22 moves the probe of amesdial 23 by rotating bar 21
It moves and is contacted with another place in end face of emergency cut-off gate valve to be measured port, then detected, then repeatedly aforesaid operations, it can
It detects the flatness of port everywhere, expands detection range, keep testing result more accurate.
As another embodiment of the invention, in the above-described embodiments, as shown in Figures 2 and 3, stabilizers include positioning
Axis 10, drive disk 14, poke rod 16 and at least three groups of driven members, the output shaft and locating shaft 10 of first motor 11 pass through shaft coupling
Device connection, the side of locating shaft 10 are equipped with retraction slot 15 corresponding with driven member, and drive disk 14 and 10 screw thread of locating shaft connect
It connects, the end face of drive disk 14 is equipped with T shape circular groove 17, and 16 one end of poke rod is equipped with T shape end, and T shape end and T shape circular groove 17 slide
Connection, driven member are located in retraction slot 15, and the other end of poke rod 16 is contacted with driven member, in emergency cut-off gate valve to be measured
It covers in locating shaft 10, by rotate driving disk 14, makes poke rod 16 that driven member be driven to stablize emergency cut-off gate valve to be measured
In locating shaft 10, further, as shown in Figure 3 and Figure 4, driven member is equipped with three groups, for stablizing emergency cut-off gate valve to be measured,
Driven member includes gag lever post 18 and elastic component 20, and one end of gag lever post 18 and shaft are rotatablely connected, and shaft is fixed on retraction slot
15 inner sidewall, the inside of locating shaft 10 is equipped with inside groove 19, and inside groove 19 is connected with retraction slot 15, one end of elastic component 20 and
The side wall of inside groove 19 is fixedly connected, and the other end of elastic component 20 is fixedly connected with gag lever post 18, an end of poke rod 16 with
The other end of gag lever post 18 connects.
During stabilizers stablize emergency cut-off gate valve to be measured, emergency cut-off gate valve to be measured is passed through into instrument connection 3 first
And cover on locating shaft 10, then rotate driving disk 14, keeps it mobile to 2 direction of instrument connection, in 14 moving process of drive disk,
Limiting slot 15 is progressively disengaged by the elastic force that poke rod 16 makes gag lever post 18 overcome elastic component 20, and after being detached from limit 15, limit
Position bar 18 contacted with the side wall of emergency cut-off gate valve inner hole to be measured, as drive disk 14 continues to move to, gag lever post 18 will increase and
The pressure of emergency cut-off gate valve inner hole side wall to be measured so that emergency cut-off gate valve to be measured be stablized, and can make emergency cut-off to be measured
Gate valve is rotated as locating shaft 10 rotates.
As another embodiment of the invention, in any one above-mentioned embodiment, as shown in Figure 1, including position restrainer
Structure, the inside of testing stand 1 are equipped with inner cavity 2, and inner cavity 2 is connected with instrument connection 1, and fiber mechanism is located in inner cavity 2, be used for
After survey emergency cut-off gate valve is stablized by stabilizing mechanism, the port of emergency cut-off gate valve to be measured is fixed.Preferably, position-limit mechanism
Including cylinder 4, drive rod 5, gear 6, coupled wheel 7 and by lever 8, cylinder 4 is fixed on the inside of testing stand 1, cylinder 4 it is defeated
Shaft is fixedly connected with one end of drive rod 5, and drive rod 5 is slidably connected with inner cavity 2, and two symmetric sides of drive rod 5 are equipped with
Spur rack, the two sides of drive rod 5 are symmetrically arranged with gear 6, and the gear shaft of gear 6 is fixed on the side wall of inner cavity 2, gear 6 and straight-tooth
Item engagement, coupled wheel 7 are engaged with gear 6, and coupled wheel 7 is sector, and the center location of coupled wheel 7 is equipped with universal driving shaft, and universal driving shaft is solid
Due to the side wall of inner cavity 2, coupled wheel 7 is fixed on by one end of lever 8, it is equal by the other end of the other end of lever 8 and drive rod 5
Equipped with limit end 13, after the starting of cylinder 4, makes the limit end 13 by the limit end 13 of lever 8 and drive rod 5 while inciting somebody to action
The port of emergency cut-off gate valve to be measured is fixedly clamped.
In the present embodiment, after emergency cut-off gate valve to be measured is stablized, cylinder 4 starts, and pushes drive rod 5 to close to test
The direction in hole 3 is mobile, in 5 moving process of drive rod, drives coupled wheel 7 also to rotate by the driving rotation of gear 6, in coupled wheel
It is also mobile to 3 direction of instrument connection by the end of lever 8 when 7 rotation, and finally by the limit end 13 of lever 8 and drive rod 5
Limit end 13 under the action of the port of emergency cut-off gate valve to be measured is fixedly clamped, can guarantee in this way survey emergency cut-off lock
The port of valve is not influenced by device vibration, guarantees the accuracy of test.In addition, limiting end 13 towards the end face of instrument connection 3
For arc, increase the contact area with the port of emergency cut-off gate valve to be measured, and the end face be equipped with it is several can be horizontal along instrument connection 3
The idler wheel 9 of face rotation keeps emergency cut-off gate valve to be measured more smooth when rotating.
As another embodiment of the invention, in any one above-mentioned embodiment, the detecting head of amesdial 23 and end
The connection of end equipment signal.Terminal device includes but is not limited to mobile phone or computer.Keep equipment more intelligent, it can by terminal device
To record the numerical value of 23 detecting head of amesdial detection in time, and upon completion of the assays, whether qualified flatness is judged automatically.
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under thinking of the invention, above embodiments
Or it can also be combined between the technical characteristic in different embodiments, and there is many of different aspect as above of the invention
Other variations, for simplicity, they are not provided in details.Therefore, all within the spirits and principles of the present invention, done
Any omission, modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of port flatness checking device of emergency cut-off gate valve, it is characterised in that: including testing stand (1), the first electricity
The end of machine (11), bracket (12), amesdial (23) and stabilizers, the testing stand (1) is equipped with instrument connection (3), the branch
Frame (12) is fixed on testing stand (1), and the first motor (11) is fixed on bracket (12), and be located at instrument connection (3) just on
Side, output shaft and the stabilizers of first motor (11) are connected by power, and the amesdial (23) is located at testing stand (1)
Bottom face；After stabilizers stablize emergency cut-off gate valve to be measured, first motor (11) drives emergency cut-off gate valve rotation to be measured,
During rotation, the detecting head of amesdial (23) is remained with the port of emergency cut-off gate valve to be measured and is contacted, thus to it
The flatness of port detects.
2. a kind of port flatness checking device of emergency cut-off gate valve according to claim 1, it is characterised in that: including
Rotation section, for the rotary part in instrument connection (3) edge of testing stand (1) bottom face, rotation section and amesdial (23) are solid
Fixed connection；The probe of the amesdial (23) does not extend in instrument connection (3), makes amesdial (23) can be in the drive of rotation section
Under, far from instrument connection (3)；Meanwhile in test, the rotation section can drive amesdial (23) in the port of emergency cut-off gate valve
It is movable in range.
3. a kind of port flatness checking device of emergency cut-off gate valve according to claim 2, it is characterised in that: described
Rotation section includes rotating bar (21) and the second motor (22), and second motor (22) is fixed on the bottom face of testing stand (1),
One end of the output shaft of second motor (22) and the rotating bar (21) is keyed, and the amesdial (23) is fixed on rotating bar
(21) the other end.
4. a kind of port flatness checking device of emergency cut-off gate valve according to claim 1, it is characterised in that: described
Stabilizers include locating shaft (10), drive disk (14), poke rod (16) and at least three groups of driven members, the first motor (11)
Output shaft connect with the locating shaft (10) by shaft coupling, the side of the locating shaft (10) is equipped with and driven member phase
Corresponding retraction slot (15), the drive disk (14) are threadedly coupled with locating shaft (10), and the end face of drive disk (14) is equipped with T shape circle
Slot (17), described poke rod (16) one end are equipped with T shape end, and T shape end is slidably connected with T shape circular groove (17), the quilt
Motivation structure is located in retraction slot (15), and the other end of the poke rod (16) is contacted with driven member, in emergency cut-off lock to be measured
Valve pocket by rotate driving disk (14), makes poke rod (16) driving driven member by emergency cut-off to be measured at locating shaft (10)
Gate valve is stable at locating shaft (10).
5. a kind of port flatness checking device of emergency cut-off gate valve according to claim 4, it is characterised in that: described
Driven member is equipped with three groups, and driven member includes gag lever post (18) and elastic component (20), and one end of gag lever post (18) and shaft turn
Dynamic connection, the shaft are fixed on the inner sidewall of retraction slot (15), and the inside of the locating shaft (10) is equipped with inside groove (19), and interior
Slot (19) is connected with retraction slot (15), and one end of the elastic component (20) is fixedly connected with the side wall of inside groove (19), elastic component
(20) the other end is fixedly connected with gag lever post (18), an end of the poke rod (16) and the other end of gag lever post (18)
It connects.
6. a kind of port flatness checking device of emergency cut-off gate valve according to claim 1, it is characterised in that: including
The inside of position-limit mechanism, the testing stand (1) is equipped with inner cavity (2), and the inner cavity (2) is connected with instrument connection (1), the fibre
Dimension mechanism is located in inner cavity (2), is used for after emergency cut-off gate valve to be measured is stablized by stabilizing mechanism, by emergency cut-off lock to be measured
The port of valve is fixed.
7. a kind of port flatness checking device of emergency cut-off gate valve according to claim 6, it is characterised in that: described
Position-limit mechanism includes cylinder (4), drive rod (5), gear (6), coupled wheel (7) and by lever (8), and the cylinder (4) is fixed on
The output shaft of the inside of testing stand (1), cylinder (4) is fixedly connected with one end of drive rod (5), the drive rod (5) with it is interior
Chamber (2) is slidably connected, and two symmetric sides of drive rod (5) are equipped with spur rack, and the two sides of drive rod (5) are symmetrically arranged with described
The gear shaft of gear (6), the gear (6) is fixed on the side wall of inner cavity (2), and gear (6) is engaged with spur rack, the coupled wheel
(7) it is engaged with gear (6), coupled wheel (7) is sector, and the center location of coupled wheel (7) is equipped with universal driving shaft, and the universal driving shaft is fixed
Side wall in inner cavity (2), described one end by lever (8) are fixed on coupled wheel (7), described by the other end of lever (8) and drive
The other end of lever (5) is equipped with limit end (13), after cylinder (4) starting, make by the limit end (13) of lever (8) and
The port of emergency cut-off gate valve to be measured is fixedly clamped by the limit end (13) of drive rod (5) simultaneously.
8. a kind of port flatness checking device of emergency cut-off gate valve according to claim 7, it is characterised in that: described
It is arc that end (13), which are limited, towards the end face of instrument connection (3), and the end face is equipped with and several can rotate along instrument connection (3) horizontal plane
Idler wheel (9).
9. a kind of port flatness checking device of emergency cut-off gate valve according to claim 1, it is characterised in that: described
The detecting head of amesdial (23) is connect with terminal device signal.
10. a kind of port flatness checking device of emergency cut-off gate valve according to claim 9, it is characterised in that: institute
Stating terminal device includes but is not limited to mobile phone or computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910543849.6A CN110260768B (en) | 2019-06-21 | 2019-06-21 | Port flatness detection device of emergency cutoff gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910543849.6A CN110260768B (en) | 2019-06-21 | 2019-06-21 | Port flatness detection device of emergency cutoff gate valve |
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| CN110260768A true CN110260768A (en) | 2019-09-20 |
| CN110260768B CN110260768B (en) | 2020-12-04 |
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| CN201910543849.6A Active CN110260768B (en) | 2019-06-21 | 2019-06-21 | Port flatness detection device of emergency cutoff gate valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726349A (en) * | 2019-09-24 | 2020-01-24 | 安徽铜都流体科技股份有限公司 | Soft seal gate valve inner cavity shape and position size detection jig and application |
| CN111272050A (en) * | 2020-03-18 | 2020-06-12 | 厦门翟素工艺品有限公司 | Pottery deformability test machine |
| CN113945144A (en) * | 2021-10-13 | 2022-01-18 | 常熟市电热合金材料厂有限公司 | Verifying attachment is used in processing of high resistance electric heating alloy silk |
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| CN208887557U (en) * | 2018-03-08 | 2019-05-21 | 苏州思珀利尔工业技术有限公司 | Flatness inspection devices |
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| CN111272050B (en) * | 2020-03-18 | 2020-12-11 | 新沂市锡沂高新材料产业技术研究院有限公司 | Pottery deformability test machine |
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