CN109115093A - A kind of Novel workpiece flatness detection recording device - Google Patents
A kind of Novel workpiece flatness detection recording device Download PDFInfo
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- CN109115093A CN109115093A CN201810820750.1A CN201810820750A CN109115093A CN 109115093 A CN109115093 A CN 109115093A CN 201810820750 A CN201810820750 A CN 201810820750A CN 109115093 A CN109115093 A CN 109115093A
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- gear
- fixedly connected
- probe
- moving arm
- driven
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of Novel workpiece flatness detection recording devices, including pedestal and registration card, the moving arm is fixedly connected with mobile arm link, sliding block is fixedly installed on the lever arm, activity is inserted with cross lead screw in the moving arm, crank is movably installed on the turntable, the extruding spring is located in probe base, the probe passes through probe base and extends in pedestal, the traction sheave is fixedly connected with traction rope one end, the record pen stand is fixedly connected far from the side of traction rope with stiff spring, the stiff spring is fixedly connected on a slot far from the side of record pen stand, the recording pen is flexibly connected with registration card, the present invention is provided with error log card, it can be with large batch of continuous monitoring workpiece error, error display is more intuitive, electronic device machine work is effectively avoided to lead to workpiece damage and survey simultaneously The problem of inaccuracy is measured, easy to use, cost is relatively low, is suitble to popularity.
Description
Technical field
The present invention relates to precision machinery technology field, specially a kind of Novel workpiece flatness detection recording device.
Background technique
Currently, many workpieces processings are all required that flatness needs to reach certain error, guaranteed in its use with this
Safety and accurate, and the flatness detecting device largely used now is all simple flatness detection ruler, due to its essence
True limitation, may cause that error is larger, so that workpiece is unable to satisfy the requirement used, so that its service life is shortened, significantly
Cost is increased, in addition most Precision Machining flatness detecting device expense is too high, is not suitable for general use, Er Qiexu
Carefully to maintain and use, increase cost, in this regard, need improved, so as to preferably to workpiece flatness into
Row detection.
Set forth above in order to solve the problems, such as, application No. is a kind of deformations of " CN201610378985.0 " in the prior art
Detection device, including the high metric of pedestal, workbench, electronics, cylinder, controller and ball-screw are spent, is equipped on the pedestal
Sliding rail, the workbench are slidably installed on the base, and the ball screw turns are mounted on the base and are located at institute
The top of workbench is stated, movement is arranged with ball bearing on the ball-screw, and the cylinder is fixed on the ball bearing
Lower end, the high metric of electronics are fixed on the head of the cylinder vertically, and the controller is mounted on the base, the electricity
The high metric of son and the controller communicate to connect, and green warning lamp and red warning lamp are equipped on the controller, described
Cylinder and the high metric of the electronics communicate to connect, and above-mentioned deformation degree detecting device is easy to operate, can reduce detection error, guarantee
The accuracy of testing result.
Although solving the problems, such as workpiece flatness detection, the above-mentioned deformation degree detecting device is in use still
In the presence of more apparent defect: 1, having used a variety of electronic components, higher cost, and easy to damage, later maintenance difficulty；2, nothing
Method does accurate record to the concave-convex degree of workpiece, is unfavorable for the post-processing of workpiece concave and convex part；3, the cylinder used without
Method accurately controls probe detection range, is easy to damage workpiece and influences measurement result.
Summary of the invention
The purpose of the present invention is to provide a kind of Novel workpiece flatness detection recording devices, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of Novel workpiece flatness detection recording device, including pedestal and registration card are movably installed on the pedestal
Fixture is movably installed with moving arm on the pedestal, and the moving arm is fixedly connected with mobile arm link, the mobile arm link
It is set in longitudinal screw mandrel, sliding block is fixedly installed on the lever arm, the sliding block is movably arranged in sliding slot, the record
Card is placed on moving arm, and activity is inserted with cross lead screw in the moving arm, is arranged with detection device on the cross lead screw；
The detection device includes probe, pedestal and recording pen, and the probe activity is mounted in probe base, the probe
Upper movable sleeve is equipped with a pair of of extruding spring, and the extruding spring is located in probe base, and the probe passes through probe base and extends to base
In seat, mandril is fixedly installed on the probe, the mandril is flexibly connected with the thimble of dial gauge, also fixed on the probe
Rack gear is installed, the rack gear is engaged with driving gear, and the driving gear is engaged with driven gear, the axis of the driven gear
On go back fixing sleeve equipped with driving sheave, the driving sheave is connect by rope with driven sheave, on the axis of the driven sheave
Fixing sleeve is equipped with active crown gear, and the active crown gear is connect by gear connecting rod with driven crown gear, the wheel shaft of the driven crown gear
It is fixedly connected with traction sheave, the traction sheave is fixedly connected with traction rope one end, and the traction rope is far from traction sheave
One end is fixedly connected with record pen stand, and fixing sleeve is equipped with recording pen on the record pen stand, and the record pen stand is movably set in
In slot, the record pen stand is fixedly connected far from the side of traction rope with stiff spring, and the stiff spring is far from recording pen
The side of seat is fixedly connected on a slot, and the recording pen is flexibly connected with registration card.
Preferably, it is equipped on the moving arm and presses piece.
Preferably, the pedestal offers mobile guide groove, and the conducting bar activity on the shifting chute and moving arm cooperates.
Preferably, the cross lead screw and longitudinal screw mandrel one end are fixedly connected to turntable, activity installation on the turntable
There is crank.
Preferably, the mobile arm link is fixedly connected with reduction block, and the moving arm activity is plugged in reduction block, institute
It states and is movably installed with vernier knob on reduction block, the vernier knob is fixedly connected with fine tuning gear, the fine tuning gear and shifting
Lifting rack engagement on swing arm.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention is avoided using electronic device, and cost is relatively low, is suitble to popularity, and is safeguarded simply, easy to use；
2, the present invention is provided with error log card, can facilitate comparison with large batch of continuous monitoring workpiece error, later period, adjust
It is whole, and error display is more intuitive；
3, the present invention utilizes the precision-fit of accurate lead screw and detection device, manual adjustment, not only economical environment-protective, while hand
Work operation is more accurate, and electronic device machine work is effectively avoided to lead to the problem of workpiece damage and measurement inaccuracy.
The present invention is provided with error log card, can facilitate comparison with large batch of continuous monitoring workpiece error, later period, adjust
It is whole, and error display is more intuitive, using the precision-fit of accurate lead screw and detection device, effectively avoids electronic device mechanic
The problem for making to lead to workpiece damage and measurement inaccuracy, easy to use, cost is relatively low, is suitble to popularity.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is overall structure schematic cross-sectional view of the invention；
Fig. 3 is measuring device schematic diagram of the invention；
Fig. 4 is measuring device structural schematic diagram of the invention；
Fig. 5 is probe attachment structure schematic diagram of the invention；
Fig. 6 is recording pen attachment structure schematic diagram of the invention；
Fig. 7 is A structure enlargement diagram of the invention；
Fig. 8 is registration card schematic diagram of the invention；
Fig. 9 is moving arm connection schematic diagram of the invention.
In figure: 1 pedestal, 2 registration cards, 3 fixtures, 4 moving arms, 5 mobile arm links, 6 longitudinal screw mandrels, 7 turntables, 8 cranks, 9
Sliding block, 10 sliding slots, 11 cross lead screws, 12 detection devices, 13 probes, 14 pedestals, 15 recording pens, 16 probe bases, 17 squeeze springs,
18 mandrils, 19 dial gauges, 20 rack gears, 21 driving gears, 22 driven gears, 23 driving sheaves, 24 driven sheaves, 25 are actively preced with
Wheel, 26 gear connecting rods, 27 driven crown gears, 28 traction sheaves, 29 traction ropes, 30 record pen stands, 31 recording pens, 32 slots, 33 are led
Draw spring, 34 press piece, 35 mobile guide grooves, 36 conducting bars, 37 telescopic blocks, 38 vernier knobs, 39 fine tuning gears, 40 lifting racks.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-9 is please referred to, the present invention provides a kind of technical solution:
A kind of Novel workpiece flatness detection recording device, including pedestal 1 and registration card 2 are movably installed with folder on pedestal 1
Tool 3, fixture 3 are furnished with regulating valve, the distance between fixture 3 are adjusted by regulating valve, facilitate the workpiece of clamping different size, bottom
Moving arm 4 is movably installed on seat 1, moving arm 4 is flexibly connected with mobile arm link 5, and mobile arm link 5 is set in longitudinal screw mandrel
On 6, the rotation of longitudinal screw mandrel 6 can be such that moving arm connecting rod 5 vertically moves in pedestal 1, be fixedly installed with sliding block on moving arm 4
9, sliding block 9 is movably arranged in sliding slot 10, by the tight fit of sliding block 9 and sliding slot 10, keeps the movement of moving arm 4 more flat
Surely, registration card 2 is placed on moving arm 4, by the curve of cyclical fluctuations that movement leaves on registration card 2 of recording pen 31 come more each
The error condition of position, activity is inserted with cross lead screw 11 in moving arm 4, and detection device 12 is arranged on cross lead screw 11, leads to
Crossing rotation cross lead screw 11 keeps detection device 12 mobile, so that the detection to workpiece essence row precision, passes through mobile cross lead screw 11
With longitudinal screw mandrel 6, the different parts of workpiece can be detected, entire detection process does not need travelling workpiece again；
Detection device 12 includes probe 13, pedestal 14 and recording pen 15, and probe 13 is movably arranged in probe base 16, passes through
Walking of the probe 13 on workpiece is being detected, and movable sleeve is equipped with a pair of of extruding spring 17 on probe 13, squeezes 17, spring
In in probe base 16, probe 13 can be moved up and down squeezing in spring 17, and then with 12 activity of motion detection device, probe 13 is worn
It crosses probe base 16 to extend in pedestal 14, mandril 18, the thimble activity of mandril 18 and dial gauge 19 is fixedly installed on probe 13
Connection, mandril 18, which moves up and down, drives thimble to move up and down, to make the beat of pointer on dial gauge 19, and then illustrates fluctuation model
It encloses, rack gear 20 is also fixedly installed on probe 13, the mobile band carry-over bar 20 of probe 13 moves, and rack gear 20 is nibbled with driving gear 21
It closes, the movement of rack gear 20 drives driving gear 21 to rotate, and driving gear 21 is engaged with driven gear 22, and the rotation of driving gear 21 drives
Driven gear 22 rotates, and fixing sleeve is gone back on the axis of driven gear 22 equipped with driving sheave 23, the rotation of driven gear 22 drives actively
Sheave 23 rotates, and driving sheave 23 is connect by rope with driven sheave 24, and the rotation of driving sheave 23 drives 24 turns of driven sheave
Dynamic, fixing sleeve is equipped with active crown gear 25 on the axis of driven sheave 24, and the rotation of driven sheave 24 drives active crown gear 25 to rotate, actively
Crown gear 25 is connect by gear connecting rod 26 with driven crown gear 27, and the rotation of active crown gear 25 drives driven crown gear 27 to rotate, driven hat
The wheel shaft of wheel 27 is fixedly connected with traction sheave 28, and the rotation of driven crown gear 27 drives traction sheave 28 to rotate, traction sheave 28 and
29 one end of traction rope is fixedly connected, and the rotation of traction sheave 28 drives traction rope 29 mobile, and traction rope 29 is far from traction sheave 28
One end is fixedly connected with record pen stand 30, and traction rope 29 is mobile to drive record pen stand 30 mobile, is recorded fixation on pen stand 30 and is arranged
There is recording pen 31, record pen stand 30 is mobile to drive recording pen 31 flexible, and record pen stand 30 is movably set in a slot 32, recording pen
30 sides far from traction rope 29 of seat are fixedly connected with stiff spring 33, and stiff spring 33 is drawn pen stand 31 is recorded, and draw bullet
Spring 33 is fixedly connected on a slot 32 far from the side of record pen stand 30, and recording pen 31 is flexibly connected with registration card 2, recording pen 31
It is flexible and so that it is left a string of curve of cyclical fluctuations on registration card 2 in the movement on cross lead screw 11, and distance of stretch out and draw back according to
The distance of stretch out and draw back of probe 13 is positively correlated, and amplifies small distance by the amplification of gear, is intuitively reflected by image
The flatness at each position of workpiece.
Preferably as one, it is equipped on moving arm 4 and presses piece 34, pressed piece 34 for registration card 2 and be firmly pressed in moving arm 4
On, it places recording pen 31 and shifts registration card 31.
Preferably as one, mobile guide groove 35 is offered on pedestal 14, mobile guide groove 35 and the conducting bar 36 on moving arm 4 are living
Dynamic cooperation avoids detection device 12 from rotating synchronously with cross lead screw 11 by the close fit of mobile guide groove 35 and conducting bar 36,
To make detection device 12 move horizontally.
Preferably as one, cross lead screw 11 and 6 one end of longitudinal screw mandrel are fixedly connected to turntable 7, activity peace on turntable 7
Equipped with crank 8, keep the rotation of cross lead screw 11 and longitudinal screw mandrel 6 more stable by crank 8.
Preferably as one, mobile arm link 5 is fixedly connected with reduction block 37, and 4 activity of moving arm is plugged in reduction block 37
Interior, moving arm 4 can move up and down in reduction block 37, and vernier knob 38 is movably installed on reduction block 37, micro- by rotating
Knob 38 is adjusted to adjust 4 height of lever arm, vernier knob 38 is fixedly connected with fine tuning gear 39, fine tuning gear 39 and moving arm 4
On lifting rack 40 engage, vernier knob 38 rotation drive fine tuning gear 39 rotate, fine tuning gear 39 rotation make lifting rack
40 move up and down, so that moving arm 4 be made to move up and down.
Working principle: when needing to carry out workpiece surface flatness detection using the device, 3 inner clip of fixture is put the workpiece in
Tightly, registration card 2 is put on moving arm 4, it is fixed with piece 34 is pressed, keep longitudinal screw mandrel 6 mobile by rotating crank 8, makes to detect
The position that the alignment of probe 13 of device 12 needs to detect, rotates vernier knob 38, and probe 13 is made to drop to suitable big position, this
When prepare detection, by rotate crank 8 make cross lead screw 11 rotate, cross lead screw 11 rotation band motion detection device 12 on workpiece
It is mobile, when by embossing belt on workpiece, about 13 micro-shifting of probe is driven, mandril 18 moves up and down to be moved down on drive thimble
It is dynamic, to make the beat of pointer on dial gauge 19, flatness can be judged by amplitude of fluctuation, meanwhile, the mobile band of probe 13
Carry-over bar 20 moves, and the movement of rack gear 20 drives driving gear 21 to rotate, and the rotation of driving gear 21 drives driven gear 22 to rotate, from
The rotation of moving gear 22 drives driving sheave 23 to rotate, and the rotation of driving sheave 23 drives driven sheave 24 to rotate, and 24 turns of driven sheave
Dynamic that active crown gear 25 is driven to rotate, the rotation of active crown gear 25 drives driven crown gear 27 to rotate, and the driven rotation of crown gear 27 drives traction
Sheave 28 rotates, and the rotation of traction sheave 28 drives traction rope 29 mobile, and traction rope 29 is mobile to drive record pen stand 30 mobile, record
Pen stand 30 is mobile to drive recording pen 31 to stretch, and the distance of stretch out and draw back of distance of stretch out and draw back and probe 13 is positively correlated, and recording pen 31 is stretched
It contracts and so that it is left a string of curve of cyclical fluctuations on registration card 2 in the movement on cross lead screw 11, pass through the amplification of gear
Small distance is amplified, the flatness at each position of workpiece is intuitively reflected by image, workpiece is removed after completing measurement, will be remembered
Record card 2 saves together with workpiece, carries out the measurement of other workpiece, is compared after being all measured according to respective registration card 2, with
It is modified accordingly.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of Novel workpiece flatness detection recording device, including pedestal (1) and registration card (2), it is characterised in that: the bottom
It is movably installed with fixture (3) on seat (1), is movably installed with moving arm (4) on the pedestal (1), the moving arm (4) and movement
Arm link (5) is flexibly connected, and the mobile arm link (5) is set on longitudinal screw mandrel (6), solid on the mobile arm link (5)
Dingan County is equipped with sliding block (9), and the sliding block (9) is movably arranged in sliding slot (10), and the registration card (2) is placed on moving arm (4)
On, the interior activity of the moving arm (4) is inserted with cross lead screw (11), is arranged with detection device on the cross lead screw (11)
(12)；
The detection device (12) includes probe (13), pedestal (14) and recording pen (15), and the probe (13) is movably arranged on
In probe base (16), movable sleeve is equipped with a pair of of extruding spring (17) on the probe (13), and the extruding spring (17), which is located at, to be visited
In needle stand (16), the probe (13) passes through probe base (16) and extends in pedestal (14), is fixedly mounted on the probe (13)
Have mandril (18), the mandril (18) is flexibly connected with the thimble of dial gauge (19), is also fixedly installed on the probe (13)
Rack gear (20), the rack gear (20) are engaged with driving gear (21), and the driving gear (21) is engaged with driven gear (22), institute
It states and goes back fixing sleeve on the axis of driven gear (22) equipped with driving sheave (23), the driving sheave (23) passes through rope and driven slot
(24) connection is taken turns, fixing sleeve is equipped with active crown gear (25) on the axis of the driven sheave (24), and the active crown gear (25) passes through
Gear connecting rod (26) is connect with driven crown gear (27), and the wheel shaft of the driven crown gear (27) is fixedly connected with traction sheave (28),
The traction sheave (28) is fixedly connected with traction rope (29) one end, the one end of the traction rope (29) far from traction sheave (28)
It is fixedly connected with record pen stand (30), fixing sleeve is equipped with recording pen (31) on the record pen stand (30), the record pen stand
(30) it is movably set in a slot (32), side and stiff spring (33) of record pen stand (30) far from traction rope (29) are solid
Fixed connection, the stiff spring (33) are fixedly connected on a slot (32) far from the side of record pen stand (30), the recording pen
(31) it is flexibly connected with registration card (2).
2. a kind of Novel workpiece flatness detection recording device according to claim 1, it is characterised in that: the moving arm
(4) it is equipped on and presses piece (34).
3. a kind of Novel workpiece flatness detection recording device according to claim 1, it is characterised in that: the pedestal
(14) it is offered on mobile guide groove (35), conducting bar (36) activity on the mobile guide groove (35) and moving arm (4) cooperates.
4. a kind of Novel workpiece flatness detection recording device according to claim 1, it is characterised in that: the transverse wire
Bar (11) and longitudinal screw mandrel (6) one end are fixedly connected to turntable (7), are movably installed with crank (8) on the turntable (7).
5. a kind of Novel workpiece flatness detection recording device according to claim 1, it is characterised in that: the moving arm
Connecting rod (5) is fixedly connected with reduction block (37), and moving arm (4) activity is plugged in reduction block (37), the reduction block
(37) it is movably installed on vernier knob (38), the vernier knob (38) is fixedly connected with fine tuning gear (39), the fine tuning
Gear (39) is engaged with the lifting rack (40) on moving arm (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810820750.1A CN109115093B (en) | 2018-07-24 | 2018-07-24 | Novel workpiece flatness detection recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810820750.1A CN109115093B (en) | 2018-07-24 | 2018-07-24 | Novel workpiece flatness detection recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109115093A true CN109115093A (en) | 2019-01-01 |
| CN109115093B CN109115093B (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810820750.1A Active CN109115093B (en) | 2018-07-24 | 2018-07-24 | Novel workpiece flatness detection recording device |
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| Country | Link |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579675A (en) * | 2019-01-09 | 2019-04-05 | 山东太古飞机工程有限公司 | A kind of measurement auxiliary mould for survey aircraft covering bumps degree |
| CN110207580A (en) * | 2019-07-09 | 2019-09-06 | 东阳罗素电子科技有限公司 | A kind of degree of plainness for wall surface detection device |
| CN110440660A (en) * | 2019-07-15 | 2019-11-12 | 芜湖东光大华机械制造有限公司 | A kind of fly wheel assembly jitter detection apparatus of multi-angle |
| CN110672005A (en) * | 2019-11-05 | 2020-01-10 | 杭州冰玉科技有限公司 | A simple and easy detection device of substrate roughness for water-soluble membrane |
| CN111006633A (en) * | 2019-12-31 | 2020-04-14 | 无锡大秦校准检测有限公司 | Device for automatically detecting flatness of workpiece and working method thereof |
| CN111692939A (en) * | 2019-03-12 | 2020-09-22 | 穆辰自动化控制系统(上海)有限公司 | Automobile part checking fixture |
| CN112504101A (en) * | 2021-01-14 | 2021-03-16 | 南京洁石美电子商务有限公司 | Pressure disc bottom flatness detection device |
| CN112923970A (en) * | 2021-01-25 | 2021-06-08 | 湖南省计量检测研究院 | Horizontal stack press-fitting detection device for fuel cell stack |
| CN113310379A (en) * | 2021-05-13 | 2021-08-27 | 海南科技职业大学 | Metal part abrasion degree detection table |
| CN113418563A (en) * | 2021-07-02 | 2021-09-21 | 武汉雅思达科技有限公司 | Mobile water quality and water level monitoring equipment and using method thereof |
| CN114608424A (en) * | 2022-03-19 | 2022-06-10 | 南昌航空大学 | Underground building engineering roughness detector |
| CN118224944A (en) * | 2024-05-22 | 2024-06-21 | 成都飞机工业（集团）有限责任公司 | Device and method for measuring waviness of aircraft honeycomb sandwich structural member |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109579675B (en) * | 2019-01-09 | 2023-09-08 | 山东太古飞机工程有限公司 | Auxiliary measurement tool for measuring concave-convex degree of aircraft skin |
| CN109579675A (en) * | 2019-01-09 | 2019-04-05 | 山东太古飞机工程有限公司 | A kind of measurement auxiliary mould for survey aircraft covering bumps degree |
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| CN110207580A (en) * | 2019-07-09 | 2019-09-06 | 东阳罗素电子科技有限公司 | A kind of degree of plainness for wall surface detection device |
| CN110440660A (en) * | 2019-07-15 | 2019-11-12 | 芜湖东光大华机械制造有限公司 | A kind of fly wheel assembly jitter detection apparatus of multi-angle |
| CN110672005A (en) * | 2019-11-05 | 2020-01-10 | 杭州冰玉科技有限公司 | A simple and easy detection device of substrate roughness for water-soluble membrane |
| CN111006633A (en) * | 2019-12-31 | 2020-04-14 | 无锡大秦校准检测有限公司 | Device for automatically detecting flatness of workpiece and working method thereof |
| CN112504101A (en) * | 2021-01-14 | 2021-03-16 | 南京洁石美电子商务有限公司 | Pressure disc bottom flatness detection device |
| CN112923970A (en) * | 2021-01-25 | 2021-06-08 | 湖南省计量检测研究院 | Horizontal stack press-fitting detection device for fuel cell stack |
| CN113310379A (en) * | 2021-05-13 | 2021-08-27 | 海南科技职业大学 | Metal part abrasion degree detection table |
| CN113418563A (en) * | 2021-07-02 | 2021-09-21 | 武汉雅思达科技有限公司 | Mobile water quality and water level monitoring equipment and using method thereof |
| CN114608424A (en) * | 2022-03-19 | 2022-06-10 | 南昌航空大学 | Underground building engineering roughness detector |
| CN118224944A (en) * | 2024-05-22 | 2024-06-21 | 成都飞机工业（集团）有限责任公司 | Device and method for measuring waviness of aircraft honeycomb sandwich structural member |
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| CN109115093B (en) | 2020-06-12 |
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