CN107290231A - Material properties test torsion equipment - Google Patents
Material properties test torsion equipment Download PDFInfo
- Publication number
- CN107290231A CN107290231A CN201710620114.XA CN201710620114A CN107290231A CN 107290231 A CN107290231 A CN 107290231A CN 201710620114 A CN201710620114 A CN 201710620114A CN 107290231 A CN107290231 A CN 107290231A
- Authority
- CN
- China
- Prior art keywords
- material properties
- properties test
- connecting rod
- rotary shaft
- fixed
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/26—Investigating twisting or coiling properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a kind of material properties test torsion equipment, the left and right ends of two-way leading screw are arranged on base by bearing arrangement, and two-way leading screw is provided with the first feed screw nut, the second feed screw nut；First feed screw nut, the top of the second feed screw nut are installed with locating piece, rotary shaft extends out through two ends inside and outside locating piece from locating piece, fixture is fixed with the inside of any rotary shaft, outside is fixed with connecting rod, connecting rod is vertically arranged with rotary shaft, the other end of connecting rod is provided with the second perforate for being additionally provided with and being passed through for alignment pin in the first perforate, connecting rod；The front end of rocking bar is provided with the 3rd positioning hole and the second positioning hole, and the outside of locating piece, which is provided with the multiple abutment sleeves being distributed in a ring, abutment sleeve, is provided with cavity, and the side wall of abutment sleeve is provided with the first positioning hole.Beneficial effect of the present invention：Applied widely, testing reliability is high.
Description
Technical field
The present invention relates to material properties test technical field, more particularly to a kind of material properties test torsion equipment.
Background technology
Twisting property is the important evidence for evaluating material combination property.In order to ensure that the material of production conforms to quality requirements mark
Standard to the sample that production is obtained, it is necessary to carry out torsion test, existing torsion equipment is mostly to fix one end of sample, so
The after-drawing other end, tests its twisting property under a fixed load, then this test mode so that sample two ends are received
Tension load is different, from two ends stretching, just can effectively solve this problem, a kind of such material properties test torsion equipment
Need further research and development.
The content of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide a kind of material properties test is turned round
Turn equipment.
To realize that the technical scheme that the purpose of the present invention is used is：
A kind of material properties test torsion equipment, including rocking bar, alignment pin, abutment sleeve, the first positioning hole, fixture,
Locating piece, rotary shaft, connecting rod, two-way leading screw, motor, shaft coupling, bearing arrangement, base, the first feed screw nut, second
Feed screw nut, the second positioning hole and the 3rd positioning hole, the second perforate and the first perforate；
The left and right ends of the two-way leading screw are arranged on base by bearing arrangement, and the end of the two-way leading screw passes through
Shaft coupling is fixed on the output shaft of motor, the two-way leading screw be provided with engage connection the first feed screw nut,
Second feed screw nut；
First feed screw nut, the top of the second feed screw nut are installed with locating piece, and two locating pieces are oppositely arranged,
Rotary shaft passes through locating piece, and inside and outside two ends are extended out from locating piece, and fixture, Ren Yixuan are fixed with the inside of any rotary shaft
Connecting rod is fixed with the outside of rotating shaft, connecting rod is vertically arranged with rotary shaft, the other end of the connecting rod, which is provided with, supplies rocking bar
The second perforate passed through for alignment pin is additionally provided with the first perforate passed through, the connecting rod, second perforate is opened with first
Hole is vertical and intersects；
The front end of the rocking bar is provided with and is available for the 3rd positioning hole and the second positioning hole that alignment pin is passed through, the positioning
The outside of block is provided with the multiple abutment sleeves being distributed in a ring, and the distribution of the abutment sleeve is described fixed using rotary shaft as the center of circle
Provided with the concentric cavity that rocking bar is inserted that is available in the sleeve of position, the side wall of the abutment sleeve, which is provided with, is available for alignment pin to pass through
The first positioning hole.
It is preferred that, the two ends of the rotary shaft are welded with locating ring.
It is preferred that, the rear end of the rocking bar is provided with antiskid glue sleeve.
It is preferred that, the spacing that the abutment sleeve is provided between 12, every two adjacent abutment sleeves is 30 degree.
It is preferred that, the fixture includes fixed frame, and the top of the fixed frame is provided with to be connected through a screw thread with it
Upper fishbolt, the bottom of the fixed frame is provided with the lower fishbolt being connected through a screw thread with it, the upper fishbolt
Bottom be provided with the first clamping plate, the top of the lower fishbolt is provided with the second clamping plate.
It is preferred that, it is equipped with anti-skid rubber cushion on first clamping plate, the clamping face of the second clamping plate.
It is preferred that, the fixture includes fixed mount, and the top of the fixed mount is provided with the upper hydraulic cylinder that can be moved downward, institute
The bottom for stating hydraulic cylinder is provided with the first fixed block, and the bottom of the fixed mount is provided with the lower hydraulic cylinder that can be moved upwards, described
The top of lower hydraulic cylinder is provided with the second fixed block.
It is preferred that, first fixed block, the second fixed block include square refill-unit and circular refill-unit.
It is preferred that, the square refill-unit and circular refill-unit are removably assemblied in hydraulic cylinder, the work of lower hydraulic cylinder
On stopper rod.
It is preferred that, it is equipped with slipmat on the stationary plane of the square refill-unit and circular refill-unit.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, certain pulling force can be applied to the sample for testing twisting property, tests it torsion under certain pulling force effect
Can, and test sample left and right ends simultaneously loading tensile so that the stressing conditions of left and right ends are identical on sample, improve survey
The reliability of examination.
2nd, sample is easy to fix dismounting, easy to operate, time saving and energy saving.
3rd, interchangeable first fixed block, the second fixed block so that the present apparatus is applied to test sample of different shapes, fits
With in extensive range.
Brief description of the drawings
Fig. 1 show the structural representation of the present invention.
Fig. 2 is rocking bar, the attachment structure schematic diagram of connecting rod.
Fig. 3 is the distributed architecture schematic diagram of abutment sleeve.
Fig. 4 is the structural representation of rocking bar.
Fig. 5 is the structural representation of the fixture of embodiment 2.
Fig. 6 is the structural representation of the fixture of embodiment 3.
Fig. 7 is the structural representation of square refill-unit.
Fig. 8 is the structural representation of circular refill-unit.
Wherein：
1- rocking bars, 2- alignment pins, 3- abutment sleeves, the positioning holes of 4- first, 5- fixtures, 6- locating pieces, 7- rotary shafts, 8- connects
Extension bar, the two-way leading screws of 9-, 10- motors, 11- shaft couplings, 12- bearing arrangements, 13- bases, the feed screw nuts of 14- first, 15-
Second feed screw nut, the positioning holes of 16- second, the positioning holes of 17- the 3rd, 18- antiskid glue sleeves, 19-, the upper hydraulic cylinders of 20-, 21- first
Fixed block, the fixed blocks of 22- second, 23- fixed frames, the upper fishbolts of 24-, the clamping plates of 25- first, the clamping plates of 26- second,
Fishbolt under 27-, the square refill-units of 28-, 29- circle refill-units, the perforates of 30- second, the perforates of 31- first.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in figure 1, a kind of material properties test torsion equipment of the present embodiment, including rocking bar 1, alignment pin 2, positioning
Sleeve 3, the first positioning hole 4, fixture 5, locating piece 6, rotary shaft 7, connecting rod 8, two-way leading screw 9, motor 10, shaft coupling
11st, bearing arrangement 12, base 13, the first feed screw nut 14, the second feed screw nut 15, the second positioning hole 16 and the 3rd positioning hole
17th, antiskid glue sleeve 18, the second perforate 30, the first perforate 31；
The left and right ends of the two-way leading screw 9 are arranged on base 13 by bearing arrangement 12, the end of the two-way leading screw 9
Portion is fixed on by shaft coupling 11 on the output shaft of motor 10, and the two-way leading screw 9, which is provided with, engages the of connection
One feed screw nut 14, the second feed screw nut 15, first feed screw nut 14, the top of the second feed screw nut 15 are installed with fixed
Position block 6, two locating pieces 6 are oppositely arranged, and rotary shaft 7 passes through locating piece 6, and inside and outside two ends extend out from locating piece 6, Ren Yixuan
The inner side of rotating shaft 7 is fixed with fixture 5, and the outside of any rotary shaft 7 is fixed with connecting rod 8, and connecting rod 8 is hung down with rotary shaft 7
Straight to set, the other end of the connecting rod 8 is provided with the first perforate 31 passed through for rocking bar 1, the connecting rod 8 and is additionally provided with for fixed
The second perforate 30 that passes through of position pin 2, second perforate 30 is vertical with the first perforate 31 and intersects；
The front end of the rocking bar 1 is provided with and is available for the 3rd positioning hole 17 and the second positioning hole 16 that alignment pin 2 is passed through, institute
The rear end for stating rocking bar 1 is provided with antiskid glue sleeve 18 (as shown in Figure 4), and the outside of the locating piece 6 is multiple provided with what is be distributed in a ring
Abutment sleeve 3, the distribution of the abutment sleeve 3 is provided with same in the center of circle (as shown in Figure 3), the abutment sleeve 3 with rotary shaft 7
The cavity for being available for the insertion of rocking bar 1 in axle center, the side wall of the abutment sleeve 3 is provided with the first positioning for being available for alignment pin 2 to pass through
Hole 4；
The spacing that the abutment sleeve 3 is provided between 12, every two adjacent abutment sleeves 3 is 30 degree.
The two ends of the rotary shaft 7 are welded with locating ring.
Operating type：
In use, material to be tested is separately fixed on the fixture 5 of two inner sides of locating piece 6, start motor
10, motor 10 drives two-way leading screw 9 to rotate, and the first feed screw nut 14, the second feed screw nut 15 are located remotely from each other, so as to pull
Material to be tested makes it carry certain pulling force, the mode of left and right loading tensile simultaneously so that sample is more uniformly stressed,
Improve the reliability of test result.
Rocking bar 1 is fixed in the second perforate 30 of the end of connecting rod 8 using alignment pin 2, at this moment alignment pin 2 is sequentially passed through
Second perforate 30 and the 3rd positioning hole 17 (on the left of Fig. 1 rocking bar 1, connecting rod 8, shown in the attachment structure of alignment pin 2 and Fig. 2 institutes
Show) rocking bar 1 is shaken, rocking bar 1 drives rotary shaft 7 to rotate, and rotary shaft 7 drives fixture 5 to rotate, and fixture 5 drives test sample to reverse,
When turning to the angle of needs, such as 30 degree are reversed, alignment pin 2 is pulled up, promoted rocking bar 1 to inner side, be inserted into
In the cavity of the abutment sleeve 3 of 30 degree of positions, at this moment alignment pin 2 sequentially passes through the second perforate 30 and the second positioning hole 16, fixed
Position pin 2 can fix rocking bar 1, the position of connecting rod 8 (such as the attachment structure institute of rocking bar 1, connecting rod 8, alignment pin 2 on the right side of Fig. 1
Show).
The setting of locating ring, can limit the position of rotary shaft 7, prevent rotary shaft 7 from being moved forward and backward in locating piece 6, make it
Only rotated in locating piece 6.
Embodiment 2
The present embodiment is improved on the basis of embodiment 1, as shown in figure 5, the fixture 5 includes fixed frame 23,
The top of the fixed frame 23 is provided with the upper fishbolt 24 being connected through a screw thread with it, and the bottom of the fixed frame 23 is set
There is the lower fishbolt 27 being connected through a screw thread with it, the bottom of the upper fishbolt 24 is provided with the first clamping plate 25, described
The top of lower fishbolt 27 is provided with the second clamping plate 26.
Anti-skid rubber cushion is equipped with first clamping plate 25, the clamping face of the second clamping plate 26.
Working method：
In use, material to be tested to be placed on to the middle part of fixed frame 23, while screwing on fishbolt 24, lower clamping spiral shell
Bolt 27, the first clamping plate 25 is moved downward, the second motion upwards of clamping plate 26, and material to be tested is fixed on into the first clamping plate
25th, between the second clamping plate 26.
Effect of the setting with anti-skidding firm test sample of anti-skid rubber cushion.
Embodiment 3
The present embodiment is improved on the basis of embodiment 1, as shown in fig. 6, the fixture 5 includes fixed mount 19, institute
The top for stating fixed mount 19 is provided with the upper hydraulic cylinder 20 that can be moved downward, and the bottom of the upper hydraulic cylinder 20 is provided with the first fixed block
21, the bottom of the fixed mount 19 is provided with the lower hydraulic cylinder 23 that can be moved upwards, and the top of the lower hydraulic cylinder 23 is provided with second
Fixed block 22.
Working method；
In use, starting upper hydraulic cylinder 20, lower hydraulic cylinder 23 simultaneously, the first fixed block 21, the second fixed block 22 are with identical
Speed move toward one another, material to be tested can be accurately fixed on to the center of fixed mount 19 so that the two of test material
End is highly identical, keeps test material level, and pulling force is also at level, improves the reliability of test.
Embodiment 4
The present embodiment is improved on the basis of embodiment 3, as shown in Figure 7, Figure 8, first fixed block 21, second
Fixed block 22 includes square refill-unit 28 and circular refill-unit 29.The square refill-unit and circular refill-unit are removably filled
Fit over hydraulic cylinder, on the piston rod of lower hydraulic cylinder, be equipped with the stationary plane of the square refill-unit and circular refill-unit anti-
Skidding.
Working method：
In the present embodiment, can be according to the refill-unit of the shape of cross section Response to selection of sample to be tested, when to be tested
When material is round rubber bar, circle refill-unit 29 is can select, when material to be tested is square rubber bar, be can select square
Refill-unit 28.
Described above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. material properties test torsion equipment, it is characterised in that including rocking bar, alignment pin, abutment sleeve, the first positioning hole,
Fixture, locating piece, rotary shaft, connecting rod, two-way leading screw, motor, shaft coupling, bearing arrangement, base, the first leading screw spiral shell
Mother, the second feed screw nut, the second positioning hole and the 3rd positioning hole, the second perforate and the first perforate；
The left and right ends of the two-way leading screw are arranged on base by bearing arrangement, and the end of the two-way leading screw passes through shaft coupling
Device is fixed on the output shaft of motor, and the two-way leading screw is provided with the first feed screw nut for engaging connection, second
Feed screw nut；
First feed screw nut, the top of the second feed screw nut are installed with locating piece, and two locating pieces are oppositely arranged, rotation
Axle passes through locating piece, and inside and outside two ends are extended out from locating piece, and fixture, any rotary shaft are fixed with the inside of any rotary shaft
Outside be fixed with connecting rod, connecting rod is vertically arranged with rotary shaft, and the other end of the connecting rod is provided with to be passed through for rocking bar
The first perforate, the second perforate passed through for alignment pin is additionally provided with the connecting rod, second perforate is hung down with the first perforate
Direct join and intersecting；
The front end of the rocking bar is provided with and is available for the 3rd positioning hole and the second positioning hole that alignment pin is passed through, the locating piece
Outside is provided with the multiple abutment sleeves being distributed in a ring, and the distribution of the abutment sleeve is using rotary shaft as the center of circle, the positioning sleeve
Provided with the concentric cavity for being available for rocking bar to insert in cylinder, the side wall of the abutment sleeve is provided be available for alignment pin to pass through the
One positioning hole.
2. material properties test torsion equipment as claimed in claim 1, it is characterised in that the two ends welding of the rotary shaft
There is locating ring.
3. material properties test torsion equipment as claimed in claim 1, it is characterised in that the rear end of the rocking bar is provided with anti-
Sliding gum cover.
4. material properties test torsion equipment as claimed in claim 1, it is characterised in that the abutment sleeve is provided with 12
Individual, the spacing between every two adjacent abutment sleeves is 30 degree.
5. material properties test torsion equipment as claimed in claim 1, it is characterised in that the fixture includes fixed frame
Frame, the top of the fixed frame is provided with the upper fishbolt being connected through a screw thread with it, and the bottom of the fixed frame is provided with
The lower fishbolt being connected through a screw thread with it, the bottom of the upper fishbolt is provided with the first clamping plate, the lower clamping spiral shell
The top of bolt is provided with the second clamping plate.
6. material properties test torsion equipment as claimed in claim 5, it is characterised in that first clamping plate, second
Anti-skid rubber cushion is equipped with the clamping face of clamping plate.
7. material properties test torsion equipment as claimed in claim 1, it is characterised in that the fixture includes fixed mount,
The top of the fixed mount is provided with the upper hydraulic cylinder that can be moved downward, and the bottom of the upper hydraulic cylinder is provided with the first fixed block, institute
The bottom for stating fixed mount is provided with the lower hydraulic cylinder that can be moved upwards, and the top of the lower hydraulic cylinder is provided with the second fixed block.
8. material properties test torsion equipment as claimed in claim 7, it is characterised in that first fixed block, second
Fixed block includes square refill-unit and circular refill-unit.
9. material properties test torsion equipment as claimed in claim 8, it is characterised in that square refill-unit and circular replacement
Part is removably assemblied in hydraulic cylinder, on the piston rod of lower hydraulic cylinder.
10. material properties test torsion equipment as claimed in claim 8, it is characterised in that the square refill-unit and circle
Slipmat is equipped with the stationary plane of shape refill-unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620114.XA CN107290231B (en) | 2017-07-26 | 2017-07-26 | Torsion equipment for testing material performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620114.XA CN107290231B (en) | 2017-07-26 | 2017-07-26 | Torsion equipment for testing material performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107290231A true CN107290231A (en) | 2017-10-24 |
| CN107290231B CN107290231B (en) | 2023-06-30 |
Family
ID=60102836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710620114.XA Active CN107290231B (en) | 2017-07-26 | 2017-07-26 | Torsion equipment for testing material performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107290231B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343809A (en) * | 2017-12-29 | 2018-07-31 | 佛山杰致信息科技有限公司 | A kind of mechanical shock absorption support device |
| CN108458866A (en) * | 2018-04-10 | 2018-08-28 | 刘超 | A kind of torsion test structure of ellipse loss of weight rubber parts |
| CN109001048A (en) * | 2018-07-02 | 2018-12-14 | 马鞍山清净环保科技有限公司 | A kind of multifunctional racket tester and its application method |
| CN109187348A (en) * | 2018-10-18 | 2019-01-11 | 苏州弗士达科学仪器有限公司 | A kind of OLED screen curtain bending apparatus and OLED screen curtain automatic testing equipment |
| CN109187208A (en) * | 2018-08-26 | 2019-01-11 | 路焕 | A kind of detection system of building enclosure component resistance to vertical load performance |
| CN110190720A (en) * | 2019-07-12 | 2019-08-30 | 浙江盘毂动力科技有限公司 | A kind of bimorph transducer disc type electric machine assembly equipment and method |
| CN111307427A (en) * | 2019-12-10 | 2020-06-19 | 芜湖市创源新材料有限公司 | Device for detecting performance and durability of automobile tail plate |
| CN111398061A (en) * | 2020-03-23 | 2020-07-10 | 中国第一汽车股份有限公司 | Circular axial sleeving weld joint damage torque testing method |
| CN113910149A (en) * | 2020-07-10 | 2022-01-11 | 中国石油天然气股份有限公司 | Steel cylinder clamp |
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| CN203811485U (en) * | 2014-04-18 | 2014-09-03 | 吉林大学 | Stretching-twisting combined loading material micro mechanical property in-situ tester |
| CN104990794A (en) * | 2015-07-09 | 2015-10-21 | 东北大学 | Tension-torsion testing machine and testing method thereof |
| CN106568658A (en) * | 2016-11-01 | 2017-04-19 | 西安交通大学 | Device and method for measuring different torsion and stretching properties of material in micro-nano level |
| CN207114339U (en) * | 2017-07-26 | 2018-03-16 | 核工业理化工程研究院 | A kind of material properties test torsion equipment |
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2017
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203811485U (en) * | 2014-04-18 | 2014-09-03 | 吉林大学 | Stretching-twisting combined loading material micro mechanical property in-situ tester |
| CN104990794A (en) * | 2015-07-09 | 2015-10-21 | 东北大学 | Tension-torsion testing machine and testing method thereof |
| CN106568658A (en) * | 2016-11-01 | 2017-04-19 | 西安交通大学 | Device and method for measuring different torsion and stretching properties of material in micro-nano level |
| CN207114339U (en) * | 2017-07-26 | 2018-03-16 | 核工业理化工程研究院 | A kind of material properties test torsion equipment |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343809A (en) * | 2017-12-29 | 2018-07-31 | 佛山杰致信息科技有限公司 | A kind of mechanical shock absorption support device |
| CN108458866A (en) * | 2018-04-10 | 2018-08-28 | 刘超 | A kind of torsion test structure of ellipse loss of weight rubber parts |
| CN109001048A (en) * | 2018-07-02 | 2018-12-14 | 马鞍山清净环保科技有限公司 | A kind of multifunctional racket tester and its application method |
| CN109187208A (en) * | 2018-08-26 | 2019-01-11 | 路焕 | A kind of detection system of building enclosure component resistance to vertical load performance |
| CN109187348A (en) * | 2018-10-18 | 2019-01-11 | 苏州弗士达科学仪器有限公司 | A kind of OLED screen curtain bending apparatus and OLED screen curtain automatic testing equipment |
| CN110190720A (en) * | 2019-07-12 | 2019-08-30 | 浙江盘毂动力科技有限公司 | A kind of bimorph transducer disc type electric machine assembly equipment and method |
| CN111307427A (en) * | 2019-12-10 | 2020-06-19 | 芜湖市创源新材料有限公司 | Device for detecting performance and durability of automobile tail plate |
| CN111398061A (en) * | 2020-03-23 | 2020-07-10 | 中国第一汽车股份有限公司 | Circular axial sleeving weld joint damage torque testing method |
| CN111398061B (en) * | 2020-03-23 | 2022-11-15 | 中国第一汽车股份有限公司 | Circular axial sleeving weld joint damage torque testing method |
| CN113910149A (en) * | 2020-07-10 | 2022-01-11 | 中国石油天然气股份有限公司 | Steel cylinder clamp |
| CN113910149B (en) * | 2020-07-10 | 2023-01-10 | 中国石油天然气股份有限公司 | Steel cylinder clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107290231B (en) | 2023-06-30 |
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