CN106769540B - Connecting rod assembly, testing mechanism and testing machine - Google Patents
Connecting rod assembly, testing mechanism and testing machine Download PDFInfo
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- CN106769540B CN106769540B CN201611237664.5A CN201611237664A CN106769540B CN 106769540 B CN106769540 B CN 106769540B CN 201611237664 A CN201611237664 A CN 201611237664A CN 106769540 B CN106769540 B CN 106769540B
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- 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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0296—Welds
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application discloses link assembly, test mechanism and test machine. The connecting rod assembly comprises a mounting base, a connecting rod, a first arm and a second arm. The testing mechanism comprises a first supporting plate, a first movable plate, a connecting rod assembly, a second movable plate and a second supporting plate which are assembled in sequence; the device also comprises a guide shaft, a driving device, a pressure sensor and a pressing plate assembly. The testing machine adopts the testing mechanism to test the pressure applied to the welding parts. The connecting rod assembly is an important component part of the shearing test mechanism, the shearing test mechanism and the shearing test machine adopt a parallel shearing mode, and the connecting rod assembly is used for detecting the wall penetrating welding quality in the production process of the lead-acid storage battery with the wall penetrating welding structure, and can accurately detect the actual shearing pressure; according to the condition of the welding spot after shearing, defective products can be found in time, so that the welding quality of the storage battery is ensured to be in the range of technological requirements.
Description
Technical Field
The application relates to the field of mechanical equipment, in particular to a connecting rod assembly, a testing mechanism and a testing machine.
Background
At present, the lead-acid storage battery has replaced the traditional rubber shell battery by a plastic shell battery, and the connection mode of each pole group in the battery is replaced by the past bridging welding technology. The wall penetrating welding has the advantages of high production efficiency, small deformation of welding parts, good labor condition, no need of adding filling metal, easy realization of mechanization and automation, and the like, can greatly improve the productivity and the yield, and is particularly suitable for mass production.
Wall penetration welding means that a pair of polarization posts are arranged between two electrodes, current is enabled to pass through a butt joint part under the action of pressure, and local melting (or plastic state) is caused by heat generated by the polarization post resistance and contact resistance thereof; after power failure, a permanent, firm joint is formed under continued pressure.
In the production of certain lead-acid batteries of the wall-welded construction, it is necessary to test the quality of the weld in the manner of a shear test. The traditional testing mechanism is of a lever structure similar to a pair of scissors, the shearing testing head is driven by the driving air cylinder to do shearing motion around a pivot, the structure has the defect that the specific pressure value applied to a butt welding part cannot be measured, the air pressure of a workshop possibly fluctuates, the size of the air pressure directly influences the size of the detection pressure, and the shearing mode of the lever structure can not effectively measure the specific pressure applied to the butt welding part even if a pressure sensor is additionally arranged, so that the traditional testing mechanism cannot effectively detect the welding quality of welding spots.
Disclosure of Invention
According to a first aspect of the present invention, there is provided a link assembly comprising a mounting base, a connecting rod, a first arm, a second arm. The mounting base is arranged in the middle of the connecting rod; one end of the first arm is movably connected with one end of the connecting rod, and one end of the second arm is movably connected with the other end of the connecting rod; thus, the first arm can rotate around the joint of the first arm and the connecting rod, and the second arm can rotate around the joint of the second arm and the connecting rod.
According to a second aspect of the present invention, there is provided a test mechanism comprising a first support plate, a first movable plate, a link assembly, a second movable plate, a second support plate, a guide shaft, a pressure sensor, and a platen assembly, which are assembled in order. The connecting rod assembly comprises a connecting rod, and further comprises a first arm and a second arm which are movably connected with the connecting rod at two ends of the connecting rod; the connecting rod assembly is connected with the first movable plate through the first arm and connected with the second movable plate through the second arm. Corresponding hollow guide sleeves are respectively arranged on the first movable plate and the second movable plate; the guide shaft penetrates through the guide sleeves on the first movable plate and the second movable plate, and two ends of the guide shaft are respectively connected with the first support plate and the second support plate. The bottom end of the first movable plate is provided with a first shearing test head, the bottom end of the second movable plate is provided with a second shearing test head, and the first shearing test head and the second shearing test head are matched to form the shearing test head. The pressure sensor is arranged on the pressing plate assembly, and the pressing plate assembly is assembled on the second movable plate and the second supporting plate; the driving device is connected with the pressing plate assembly, so that the driving device generates driving force to drive the pressing plate assembly to move, the pressing plate assembly drives the first movable plate and the second movable plate to move along the guide shaft in opposite directions, and the first arm and the second arm of the connecting rod assembly rotate respectively to enable the first movable plate and the second movable plate to move along the guide shaft in opposite directions. The driving device drives the pressing plate assembly to move so that the sensor detects the driving force of the driving device.
According to a third aspect of the present invention there is provided a testing machine employing the testing mechanism described above to test the pressure applied to a weld.
The connecting rod assembly is an important component part of the shearing test mechanism, the shearing test mechanism and the shearing test machine adopt a parallel shearing mode, and the connecting rod assembly is used for detecting the wall penetrating welding quality in the production process of the lead-acid storage battery with the wall penetrating welding structure, and can accurately detect the actual shearing pressure; according to the condition of the welding spot after shearing, defective products can be found in time, so that the welding quality of the storage battery is ensured to be in the range of technological requirements.
Drawings
FIG. 1 is an assembly schematic diagram of a shear test mechanism according to a first embodiment;
FIG. 2 is a schematic view of a connecting rod assembly according to the first embodiment;
FIG. 3 is a schematic structural diagram of a shear test mechanism according to the first embodiment;
FIG. 4 is a schematic diagram of a shear test mechanism and a shear test assembly according to a first embodiment;
FIG. 5 is a schematic diagram of a shear test mechanism and a shear test assembly according to a first embodiment;
FIG. 6 is a schematic diagram of a shear test mechanism according to the first embodiment;
FIG. 7 is a schematic diagram of a shear test mechanism according to the first embodiment;
FIG. 8 is a schematic diagram of a shear test mechanism according to the first embodiment;
fig. 9 is a schematic diagram of a shear test mechanism according to the first embodiment.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings by way of specific embodiments.
Embodiment one:
as shown in fig. 1, the shear test mechanism of the present embodiment includes a first support plate 2-2, a first movable plate 2-5, a link assembly 2-14, a second movable plate 2-6, and a second support plate 2-3, which are assembled in order; the device also comprises two guide shafts 2-4, a driving cylinder 2-8, a pressure sensor 2-12, a first pressing plate assembly 2-9, a second pressing plate assembly 2-10, a connecting rod assembly mounting plate 2-15, a bottom plate 2-1 and a pressure display (not shown in the figure). The first movable plate 2-5, the connecting rod assembly 2-14, the second movable plate 2-6, the guide shaft 2-4, the first pressing plate assembly 2-9 and the second pressing plate assembly 2-10 jointly form a movable assembly.
As shown in FIG. 2, the connecting rod assembly 2-14 comprises a mounting base 3-1, a connecting rod 3-2, a first arm 3-41, a second arm 3-42, a first joint bearing 3-31, a second joint bearing 3-32, a third joint bearing 3-33, a fourth joint bearing 3-34 and a clamp spring 3-6.
The installation base 3-1 is installed in the middle of the connecting rod 3-2. One end of the first arm 3-41 is movably connected with one end of the connecting rod 3-2 through a first joint bearing 3-31, and one end of the second arm 3-42 is movably connected with the other end of the connecting rod 3-2 through a third joint bearing 3-33; thus, the first arm 3-41 can rotate around the junction of the first arm 3-41 and the connecting rod 3-2, and the second arm 3-42 can rotate around the junction of the second arm 3-42 and the connecting rod 3-2. The first joint bearing 3-31, the second joint bearing 3-32, the third joint bearing 3-33 and the fourth joint bearing 3-34 are respectively provided with screws 3-5. The other end of the first arm 3-41 is provided with a second joint bearing 3-32, and a screw 3-5 at the second joint bearing 3-32 of the connecting rod assembly 2-14 is connected with the first movable plate 2-5 through a connecting rod assembly connecting block 2-16; the other end of the second arm 3-42 is provided with a fourth joint bearing 3-34, and a screw 3-5 at the fourth joint bearing 3-34 of the connecting rod assembly 2-14 is connected with the second movable plate 2-6 through a connecting rod assembly connecting block.
Two ends of the connecting rod assembly mounting plate 2-15 are respectively arranged on the first support plate 2-2 and the second support plate 2-3; the mounting base 3-1 of the connecting rod assembly 2-14 is mounted on the panel of the connecting rod assembly mounting plate 2-15 and fastened by the clamp spring 3-6.
The first movable plate 2-5 and the second movable plate 2-6 are respectively provided with a pair of corresponding hollow guide sleeves 2-7; the two guide shafts 2-4 respectively penetrate through a pair of guide sleeves 2-7 on the first movable plate 2-5 and the second movable plate 2-6, and two ends of the guide shafts 2-4 are respectively connected with the first support plate 2-2 and the second support plate 2-3.
As shown in FIG. 3, the bottom plate 2-1 is used as a top panel of the testing mechanism, and the first support plate 2-2 and the second support plate 2-3 are respectively arranged at two ends of the bottom plate 2-1.
The bottom end of the first movable plate 2-5 is provided with a first shearing test head part 2-171, the bottom end of the second movable plate 2-6 is provided with a second shearing test head part 2-172, and the first shearing test head part 2-171 and the second shearing test head part 2-172 are matched to form the shearing test head.
The first pressing plate assembly 2-9 and the second pressing plate assembly 2-10 jointly form a pressing plate assembly, and the first pressing plate assembly 2-9 and the second pressing plate assembly 2-10 are arranged on two sides of the second movable plate 2-6; the first pressing plate component 2-9 passes through a through groove on the second movable plate 2-6 and is in fit connection with the second pressing plate component 2-10; the pressure sensor 2-12 is mounted between the second pressing plate assembly 2-10 and the second movable plate 2-6 through the pressure sensor fixing plate 2-13, preferably, the pressure sensor 2-12 is fixedly mounted on the second movable plate 2-6 through the pressure sensor fixing plate 2-13; the data end of the pressure sensor 2-12 is externally connected with a pressure display.
The driving cylinder 2-8 is arranged between the first support plate 2-2 and the first movable plate 2-5 and is connected to an output end (not shown in the figure) of a pressure regulating valve of the shear tester, preferably mounted on the first movable plate 2-5.
A cylinder connecting block 2-11 is arranged between the first movable plate 2-5 and the first pressing plate component 2-9; the driving air cylinder 2-8 and the first pressing plate component 2-9 are positioned at two ends of the first movable plate 2-5, one end of the air cylinder connecting block 2-11 penetrates through the first movable plate 2-5 to be connected with the driving air cylinder 2-8, and the other end of the air cylinder connecting block 2-11 is connected with the first pressing plate component 2-9. Thereby, the driving air cylinder 2-8 generates driving force and drives the first pressing plate component 2-9 to move (the second pressing plate component 2-10 is linked) through the air cylinder connecting block 2-11, and then the first pressing plate component 2-9 drives the first movable plate 2-5 and the second movable plate 2-6 to move along the guide shaft 2-4 in opposite directions; at the same time, the first arm 3-41 and the second arm 3-42 of the link assembly 2-14 are respectively rotated so that the first movable plate 2-5 and the second movable plate 2-6 realize the opposite movement along the guide shaft 2-4.
When the driving cylinder 2-8 drives the pressing plate component to move, the pressure sensor 2-12 can detect the driving force of the driving cylinder 2-8.
The connecting rod assembly of the present embodiment can be manufactured independently as a product, which is mainly assembled on the shear test structure of the present embodiment; the shear test mechanism of the present embodiment may also be manufactured separately as a product that is mounted primarily on the shear tester of the present embodiment.
The working principle and process of the shear test mechanism and the shear test machine of the present embodiment are briefly described below.
In the production process of the lead-acid storage battery with the wall-penetrating welding structure, the shearing pressure is the transverse force applied to two butt welding parts by a shearing testing head of the shearing testing mechanism, and the better the welding quality is, the larger the shearing pressure can be born by welding spots. In the production process, the shearing test mechanism of the embodiment can be utilized to adjust the shearing pressure to a specified value according to the technological requirement of the battery to be tested, for example, the shearing force of a 12V7Ah battery is set to 80Kg, and the shearing force of a 12V14Ah battery is set to 150Kg. After the shearing test is finished, if the welding spots are complete, the battery is judged to be qualified, and if the welding spots are sheared or deformed, the battery is judged to be unqualified.
The shear test mechanism is intended to be mounted on a shear tester in use, and as shown in fig. 4 and 5, the mounted condition of the shear test mechanism 10 on the shear tester 20 is shown from the front and back of the shear test mechanism, respectively.
The lifting, switching, air source and air pressure adjustment of the shear test mechanism 10 are controlled by the shear test machine 20, the limit, height limit and the like of the workbench of the shear test machine 20 are adjusted according to different batteries before use, the shear test mechanism 10 needs to adjust the adjusting nut at the tail of the driving cylinder according to the width of the current butt welding piece, so that the butt welding piece can be placed between one part of the shear test head and two parts of the shear test head, and meanwhile, the adjusting nut on the second pressing plate assembly also needs to be correspondingly adjusted. The output end of the pressure regulating valve on the shear test machine 20 is connected with the driving cylinder of the shear test mechanism 10 so as to drive the driving cylinder, and the shearing force suitable for the storage battery 30 to be tested can be set by regulating the output air pressure of the pressure regulating valve.
As shown in fig. 6 and 7, before the shear test, the first shear test head 2-171 and the second shear test head 2-172 (i.e., the shear test heads) are opened without applying pressure to the butt welding members of the battery 30 on the table of the shear tester 20; the first movable plate and the second movable plate are positioned at two ends of the shear test mechanism 10 and are far apart.
As shown in fig. 8 and 9, during the shear test, the technician presses the switch, and the lifting cylinder of the shear test machine 20 drives the shear test mechanism 10 to descend, so that the shear test head is just clamped on the butt welding member to be tested. At this time, the driving cylinder of the shear test mechanism 10 pulls the first pressing plate component and the second pressing plate component through the cylinder connecting block connected with the driving cylinder to drive the first movable plate 2-5 and the second movable plate 2-6 to move in parallel and opposite directions, namely the first movable plate 2-5 and the second movable plate 2-6 simultaneously move towards the middle along the guide shaft; at this time, the connecting rod assembly 2-14 provides cooperation for completing the movement, the first arm of the connecting rod assembly rotates anticlockwise downwards, the second arm of the connecting rod assembly rotates anticlockwise upwards, and the first movable plate 2-5 and the second movable plate 2-6 are driven to simultaneously move in parallel and opposite directions (simultaneously advance towards the middle or retreat towards the two sides) by taking the rotating shaft at the mounting base 3-1 as a reference; further driving the first shearing test head 2-171 and the second shearing test head 2-172 to clamp and perform shearing action on the welding piece; the driving force of the final driving cylinder is fully applied to the butt welding part to be tested. In the process, as the pressure sensor is arranged on the second movable plate, the pressure sensor is driven by the second movable plate and is pressed against the second pressing plate assembly, the pressure sensor also participates in the transmission of driving force, the driving force applied by the driving cylinder is transmitted to the pressure sensor and is accurately measured, and the maximum reading on the pressure display communicated with the pressure sensor is the pressure born by the measured butt welding piece.
In this embodiment, the "sensor display value=sensor measurement value=driving force value=actual shear force value", and the technician can set the shear force in an accurate range according to the process requirements of different batteries before testing, and since the shear force is visible each time, the influence of air pressure fluctuation on the shear force is avoided.
The connecting rod assembly is an important component part of the shearing test mechanism, the shearing test mechanism and the shearing test machine adopt a parallel shearing mode, and the connecting rod assembly is used for detecting the wall penetrating welding quality in the production process of the lead-acid storage battery with the wall penetrating welding structure, and can accurately detect and display the actual shearing pressure; and can set up different shearing forces or shearing force ranges in advance according to the technological requirement of different batteries in a mode of adjusting the driving air pressure, has facilitated the adjustment operation of the technicians; according to the condition of the welding spot after shearing, defective products can be found in time, so that the welding quality of the storage battery is ensured to be in the range of technological requirements.
The foregoing is a further detailed description of the present application in connection with the specific embodiments, and it is not intended that the specific embodiments of the present application be limited to these descriptions. It will be apparent to those of ordinary skill in the art that several simple deductions or substitutions may be made without departing from the spirit of the present application.
Claims (6)
1. The testing mechanism is characterized by comprising a first supporting plate (2-2), a first movable plate (2-5), a connecting rod assembly (2-14), a second movable plate (2-6) and a second supporting plate (2-3) which are assembled in sequence;
the device also comprises a guide shaft (2-4), a pressure sensor (2-12) and a pressing plate assembly (2-9, 2-10);
the connecting rod assembly (2-14) comprises a mounting base (3-1) and a connecting rod (3-2), and the mounting base is mounted in the middle of the connecting rod; the device further comprises a first arm (3-41) and a second arm (3-42) which are movably connected with the connecting rod (3-2) at two ends of the connecting rod (3-2), so that the first arm can rotate around the joint of the first arm and the connecting rod, and the second arm can rotate around the joint of the second arm and the connecting rod; the connecting rod assembly is connected with the first movable plate through the first arm and connected with the second movable plate through the second arm;
the connecting rod assembly (2-14) further comprises a first knuckle bearing (3-31), a second knuckle bearing (3-32), a third knuckle bearing (3-33) and a fourth knuckle bearing (3-34);
one end of the first arm is movably connected with one end of the connecting rod through the first joint bearing, and one end of the second arm is movably connected with the other end of the connecting rod through the third joint bearing;
the other end of the first arm is provided with a second joint bearing, and the other end of the second arm is provided with a fourth joint bearing;
the connecting rod assembly is connected with the first movable plate through a second joint bearing (3-32) on the first arm, and is connected with the second movable plate through a fourth joint bearing (3-34) on the second arm;
corresponding hollow guide sleeves (2-7) are respectively arranged on the first movable plate and the second movable plate; the guide shaft penetrates through the guide sleeves on the first movable plate and the second movable plate, and two ends of the guide shaft are respectively connected with the first support plate and the second support plate;
the bottom end of the first movable plate (2-5) is provided with a first shearing test head part (2-171), the bottom end of the second movable plate (2-6) is provided with a second shearing test head part (2-172), and the first shearing test head part (2-171) and the second shearing test head part (2-172) are matched to form a shearing test head;
the pressure sensor is arranged on the pressure plate assembly, and the pressure plate assembly is assembled on the second movable plate and the second supporting plate; the pressing plate assembly is connected with the driving device, so that the driving device generates driving force to drive the pressing plate assembly to move, the pressing plate assembly drives the first movable plate and the second movable plate to move along the guide shaft in opposite directions, and the first arm and the second arm of the connecting rod assembly rotate respectively to enable the first movable plate and the second movable plate to move along the guide shaft in opposite directions;
the driving device drives the pressing plate assembly to move so that the sensor detects the driving force of the driving device.
2. The test mechanism of claim 1,
the device also comprises a driving device (2-8) arranged between the first supporting plate and the first movable plate;
the driving device and the pressing plate assembly are positioned at two ends of the first movable plate and are connected with each other, so that the driving device generates driving force to drive the pressing plate assembly to move.
3. The test mechanism of claim 1,
the pressing plate assembly comprises a first pressing plate assembly (2-9) and a second pressing plate assembly (2-10);
the first pressing plate component and the second pressing plate component are arranged on two sides of the second movable plate;
the first pressing plate component passes through the second movable plate to be in fit connection with the second pressing plate component, or the second pressing plate component passes through the second movable plate to be in fit connection with the first pressing plate component;
the sensor is arranged between the first pressing plate assembly and the second movable plate, or between the second pressing plate assembly and the second movable plate.
4. The test mechanism of claim 3,
the device also comprises a driving connecting block (2-11) arranged between the first movable plate and the first pressing plate component;
one end of the driving connecting block penetrates through the first movable plate to be connected with the driving device, and the other end of the driving connecting block is connected with the first pressing plate assembly; therefore, the driving device generates driving force and drives the first pressing plate assembly to move through the driving connecting block, and then the first pressing plate assembly drives the first movable plate and the second movable plate to move along the guide shaft in opposite directions.
5. The test mechanism according to claim 1, wherein,
the pressure sensor also comprises a connecting rod assembly mounting plate (2-15), a bottom plate (2-1) serving as a top panel of the testing mechanism and a pressure display externally connected with the pressure sensor;
two ends of the connecting rod assembly mounting plate are respectively arranged on the first supporting plate and the second supporting plate; the mounting base (3-1) of the connecting rod assembly (2-14) is mounted on a panel of the connecting rod assembly mounting plate;
the first support plate and the second support plate are respectively arranged at two ends of the bottom plate;
the pressure display is used for displaying the pressure value measured by the pressure sensor;
the driving device is a driving air cylinder, and the driving connecting block is an air cylinder connecting block.
6. A testing machine is characterized in that,
the test mechanism as claimed in any one of claims 1-5 is used for testing the pressure applied to the welding piece, the output end of the pressure regulating valve on the test machine is connected with the driving device of the shearing test mechanism so as to drive the driving device, and the driving force, namely the shearing force, of the shearing test mechanism can be set by regulating the output air pressure of the pressure regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237664.5A CN106769540B (en) | 2016-12-28 | 2016-12-28 | Connecting rod assembly, testing mechanism and testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237664.5A CN106769540B (en) | 2016-12-28 | 2016-12-28 | Connecting rod assembly, testing mechanism and testing machine |
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| Publication Number | Publication Date |
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| CN106769540A CN106769540A (en) | 2017-05-31 |
| CN106769540B true CN106769540B (en) | 2023-05-23 |
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| CN201611237664.5A Active CN106769540B (en) | 2016-12-28 | 2016-12-28 | Connecting rod assembly, testing mechanism and testing machine |
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| CN110220804B (en) * | 2019-06-17 | 2024-05-03 | 河南交通职业技术学院 | Pressure shear testing machine |
| CN110220795B (en) * | 2019-06-17 | 2024-05-03 | 河南交通职业技术学院 | Pressure testing machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2170516Y (en) * | 1993-07-19 | 1994-06-29 | 洪逸鹏 | Wall-through welding spot detector for battery |
| EP2363701B1 (en) * | 2010-03-05 | 2015-11-04 | Nordson Corporation | Improved clamping mechanism for shear testing apparatus |
| CN201848947U (en) * | 2010-11-01 | 2011-06-01 | 东莞市金隽机械有限公司 | Die spotting device |
| CN202041491U (en) * | 2011-01-21 | 2011-11-16 | 江苏理士电池有限公司 | Partition-through welding spot nondestructive detecting die in adjustable structure |
| CN203650956U (en) * | 2013-07-05 | 2014-06-18 | 江苏理士电池有限公司 | Through-the-partition welding and nondestructive detection device |
| CN204712859U (en) * | 2015-06-08 | 2015-10-21 | 湘电重型装备有限公司 | A kind of louver electric pushrod device |
| CN206440556U (en) * | 2016-12-28 | 2017-08-25 | 江苏理士电池有限公司 | A kind of link assembly, mechanism for testing and test machine |
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