CN109709031A - Bonding strength detection device - Google Patents
Bonding strength detection device Download PDFInfo
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- CN109709031A CN109709031A CN201811388950.0A CN201811388950A CN109709031A CN 109709031 A CN109709031 A CN 109709031A CN 201811388950 A CN201811388950 A CN 201811388950A CN 109709031 A CN109709031 A CN 109709031A
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- bonding strength
- detection device
- strength detection
- test section
- locking mechanism
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
The invention discloses a kind of bonding strength detection devices, including fixed part, test section and power part, the fixed part is for fixing detected material, the detected material includes first part and second part, the first part connect with the second part, the first part is fixed on the fixed part, the second part is fixedly connected with the test section, the power part is used to drive the movement of the relatively described fixed part of the test section, the power far from the second part is applied to the first part by the movement of the relatively described fixed part of the test section to detect the bonding strength of the first part and second part.Such as detected material is battery battery core, power when being separated by detecting tab with cover board judges the weld strength of tab and cover board, easy to detect reliable, is the safety of battery battery core, reliability and conformity provides guarantee.
Description
Technical field
The present invention relates to battery battery core detection technique field, especially a kind of bonding strength detection device.
Background technique
It is good in order to guarantee to connect between cell polar ear and cover board in the manufacture production of lithium ion battery cell, in laser
Reasonable laser welding process parameter need to be set when welding, although can according to the phenomenon that welding process with postwelding cell polar ear with
The separation situation of cover board judges whether laser welding is reliable, whether there is or not rosin joint or crosses weldering phenomenon, but this is only to rely on experience
To judge may also there be the error of a bit, can not accurately judge the size of its weld strength.If desired accurately know
The sizes values of laser weld strength between road cell polar ear and cover board need a kind of detecting instrument then to measure the big of its weld strength
It is small.
Summary of the invention
In view of this, one of the objects of the present invention is to provide it is a kind of be conveniently used for detection detected material first part with
The bonding strength detection device of the bonding strength of second part, such as detected material are battery battery core, bonding strength detection dress
It sets so that the detection of the weld strength of the tab and cover board of battery battery core is more convenient.
In order to achieve the above objectives, on the one hand, the present invention adopts the following technical scheme:
A kind of bonding strength detection device, including fixed part, test section and power part, the fixed part is for fixed tested
Object is surveyed, the detected material includes first part and second part, and the first part connect with the second part, and described the
A part is fixed on the fixed part, and the second part is fixedly connected with the test section, and the power part is for driving
The movement of the relatively described fixed part of the test section, by the movement of the relatively described fixed part of the test section to described first
Give the bonding strength for adding the power far from the second part to detect the first part and second part.
Preferably, the fixed part includes installing structure and the first locking mechanism, and the detected material is installed on the peace
Structure is set, first locking mechanism is for locking the detected material.
Preferably, first locking mechanism includes block, locking bar and/or spanner, and the block is for locking the quilt
The installation of detectable substance, the locking bar are used to drive the movement of the block, and the spanner is used to drive the movement of the locking bar.
Preferably, the test section includes stretching force detecting apparatus, and the stretching force detecting apparatus is connect with the first part,
For detecting the pulling force of the relatively described second part of the first part.
Preferably, the test section includes connection structure, one end of the connection structure and the stretching force detecting apparatus phase
Even, opposite end is connected with the first part.
Preferably, the connection structure includes the second locking mechanism for locking the first part, second lock
Locking structure is fixedly connected with the first part.
Preferably, the connection structure includes pulling force connecting rod, one end of the pulling force connecting rod and stretching force detecting apparatus
It is connected, opposite end is connect with second locking mechanism.
Preferably, the connection structure includes thimble structure, the thimble structure and the fixed company of second locking mechanism
It connects, the thimble structure is flexibly connected with the pulling force connecting rod.
Preferably, the pulling force connecting rod includes bar portion and limiting section, and the bar portion passes through the thimble structure, the limit
Position portion is used to limit the bar portion and moves to the direction far from the detected material.
Preferably, the bonding strength detection device includes mounting base, and the stretching force detecting apparatus is pacified by mounting structure
It is attached to the mounting base, the mounting structure is flexibly connected with the mounting base, and the power part is by driving the installation knot
Structure moves the movement to drive the stretching force detecting apparatus.
A kind of bonding strength detection device provided by the invention, the bonding strength detection device are detected tested by test section
Power of the first part of object when separating with second part is surveyed to judge the bonding strength of first part and second part, such as is detected
Survey object is battery battery core, and power when being separated by detecting tab with cover board judges the weld strength of tab and cover board, detection side
It can lean on, for the safety of battery battery core, reliability and conformity provide guarantee.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the bonding strength detection device of specific embodiment provided by the invention；
Fig. 2 shows the partial structural diagrams of the bonding strength detection device of specific embodiment provided by the invention.
In figure,
1, fixed part；11, installing structure；111, fixture；12, the first locking mechanism；121, block；122, locking bar；123,
Spanner；2, test section；21, stretching force detecting apparatus；22, connection structure；221, connecting rod；2211, bar portion；2212, limiting section；
222, the second locking mechanism；223, thimble structure；2231, annulus set；2232, rectangle ring set；3, mounting base；4, installation knot
Structure；5, detected material；51, first part；52, second part.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
Text is detailed to describe some specific detail sections in datail description of the invention.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, be " including but not limited to " contains
Justice.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
It is two or more.
With reference to shown in Fig. 1 and 2, the present invention provides a kind of bonding strength detection devices, for detecting the of detected material 5
Bonding strength was obtained between a part 51 and second part 52, such as the bonding strength detection device is electric horizontal pull test
Machine, first part 51 and second part 52 are welded to connect, by the bonding strength detection device can detecte first part 51 with
The weld strength of second part 52, the bonding strength detection device include fixed part 1, test section 2 and power part, the fixed part
1 for fixing detected material 5, and the detected material 5 includes first part 51 and second part 52, the first part 51 and institute
The connection of second part 52 is stated, the first part 51 is fixed on the fixed part 1, the second part 52 and the test section
2 are fixedly connected, and the power part is used to drive the movement of the relatively described fixed part 1 of the test section 2, pass through the test section 2
The movement of the relatively described fixed part 1 applies the power far from the second part 52 to the first part 51 to detect described first
The weld strength of part 51 and second part 52, such as when test section 2 can show that first part 51 separates with second part 52
Power size, when first part 51 separates with second part 52, the power that test section 2 detects is bigger, then illustrate first
Points 51 better with the weld strength of second part 52；When first part 51 separates with second part 52, what test section 2 detected
Power is smaller, then illustrates that first part 51 and the weld strength of second part 52 are poorer.Detected material 5 is, for example, battery battery core, the
A part 51 includes the tab of battery battery core, and second part 52 includes the cover board of battery battery core, is detected and is filled by the bonding strength
The weld strength of the tab and cover board that can easily detect battery battery core is set, it is strong by measuring tab and cover board laser welding
The sizes values of degree check for rosin joint or cross weldering phenomenon, guarantee the reliability of laser welding, improve making for lithium ion battery
With service life and security reliability.
Preferably, with reference to shown in Fig. 1 and 2, fixed part 1 includes installing structure 11 and the first locking mechanism 12, described tested
It surveys object 5 and is installed on the installing structure 11, first locking mechanism 12 is used to lock the detected material 5, such as is detected
Object 5 is cylindrical electrical core, and installing structure 11 includes fixture 111 as shown in Figure 1, and cylindrical electrical core is placed on fixture 111, by the
Cylindrical electrical core is locked on fixture 111 by one locking mechanism 12, and the first locking mechanism 12 preferably includes block 121, locking bar 122
And/or cylindrical electrical core is locked at fixed part 1 by spanner 123, the cooperation of the block 121 and fixture 111, the locking bar 122 is used
In the movement for driving the block 121, the spanner 123 is used to drive the movement of the locking bar 122, by rotating spanner 123,
It drives locking bar 122 to rotate, and is moved to the direction close to fixture 111, so that block 121 is transported to the direction close to cylindrical electrical core
It is dynamic, thus clamp cylinders battery core, to facilitate subsequent detection.
With reference to shown in Fig. 1 and 2, test section 2 includes stretching force detecting apparatus 21, such as tensiometer, the stretching force detecting apparatus
21 connect with the first part 51, for detecting the pulling force of the relatively described second part 52 of the first part 51, tensiometer
Be connected by connection structure 22 with first part 51, that is, one end of connection structure 22 is connected with tensiometer, opposite end with first
51 (battery battery core middle finger tabs) are divided to be connected, preferably connection structure 22 includes connecting rod 221, the second locking mechanism 222 and lantern ring
Structure 223, connecting rod 221 include bar portion 2211 and limiting section 2212, and bar portion 2211 passes through the annulus set in thimble structure 223
2231, one end of bar portion 2211 is connected with tensiometer, and the other end is connected with limiting section 2212, that is, limiting section 2212 and tensiometer
The axial sides of annulus set 2231 are located at, limiting section 2212 is used to limit bar portion 2211 and transports to the direction far from battery battery core
It is dynamic, when moving when tensiometer to the direction far from battery battery core, drive bar portion 2211 to move, due to limiting section 2212 and annulus set
2231 generate conflict, so that thimble structure 223 moves under the action of tensiometer to the direction far from battery battery core, thimble structure
One end of 223 close battery battery core is connected with the second locking mechanism 222, the tab of the second locking mechanism 222 and battery battery core
Locking connection, tensiometer can be to the power in the direction of one cover board far from battery of tab, so that between cover board and tab
Power disconnected from each other is generated, when tab is separated with cover board, judges tab and cover board by reading the numerical value on tensiometer
Weld strength.
Preferably, with reference to shown in Fig. 1 and 2, which further includes mounting base 3, stretching force detecting apparatus 21
It is installed to the mounting base 3 by mounting structure 4, the mounting structure 4 is flexibly connected with the mounting base 3, with electric horizontal
It is introduced for tensile testing machine, mounting base 3 is the main body of electric horizontal tensile testing machine, and mounting structure 4 preferably includes to hold in the palm
Hardened structure, for installing tensiometer, support board structure can be in mounting base 3 along annulus set 2231 by being driven by electricity for power part
It is axially moved, to drive the movement of tensiometer, realizes the detection of the weld strength to the tab and cover board of battery battery core.
It should be noted that the size of above-mentioned fixed part 1 can be replaced according to the shape of detected material 5, with convenient
The bonding strength monitoring device adapts to different detected materials 5, and similarly, test section 2 can also need to carry out according to different detections
The adaptable components of replacement, promote the usage experience of user, meet the needs of different users, such as the second locking mechanism 222
Including locking nut, the size of locking nut can be replaced according to the corresponding size of the tab of battery battery core.
In addition, thimble structure 223 further includes rectangle ring set 2232, rectangle ring set 2232 with reference to shown in Fig. 1 and 2
One end is connected with annulus set 2231, and the other end is connected with locking nut, and the part-structure of connecting rod 221 can be in rectangle ring set
Movement in 2232, setting 2232 one side of rectangle ring set makes locking nut and annulus set 2231 keep certain distance, convenient
On the other hand the installation of cylindrical electrical core, connecting rod 221 and tensiometer can guarantee that connecting rod 221 is transported in rectangle ring set 2232
It is dynamic, improve the reliability of the bonding strength detection device.
In a specific embodiment, it with reference to shown in Fig. 1 and 2, is carried out using certain lithium titanate cylindrical electrical core as detected material 5
The fillet radian of the detection of weld strength, the fixture 111 in fixed part 1 is R 60, to facilitate the clamping to above-mentioned cylindrical electrical core,
Tensiometer precision is 0.5 grade, maximum range 200N/m, and 2211 outer diameter of bar portion of pulling force connecting rod 221 is Φ 8, annulus
The outer diameter of set 2231 is Φ 18, and locking nut M12, the speed of service of the main body of electric horizontal tensile testing machine is 2m/
min.When detection, with the fixed cylindrical electrical core of fixture 111, cylindrical electrical core is locked by spanner 123, locking bar 122, tensiometer will be housed
Support board structure slid a distance to cylindrical electrical core direction, will drive connecting rod 221 and thimble structure 223 together to identical
Direction movement, then locking nut is locked the tab of cylindrical electrical core, function electric horizontal tensile testing machine is opened, electronic
Under the driving of horizontal test electro-mechanical force, tensiometer, connecting rod 221, circle lantern ring, locking nut can be to the directions far from cylindrical electrical core
Movement, under the action of pulling force, causes the tab of cylindrical electrical core to separate with cover board, and tensiometer shows that the size of pulling force is at this time
96N/m, then the size of laser weld strength is 96N/m between cylindrical electrical core tab and cover board.
Those skilled in the art will readily recognize that above-mentioned each preferred embodiment can be free under the premise of not conflicting
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from of the invention basic
In the case where principle, those skilled in the art can be directed to the various apparent or equivalent modification or replace that above-mentioned details is made
It changes, is all included in scope of the presently claimed invention.
Claims (10)
1. a kind of bonding strength detection device, which is characterized in that including fixed part, test section and power part, the fixed part is used
In fixed detected material, the detected material includes first part and second part, the first part and the second part
Connection, the first part are fixed on the fixed part, and the second part is fixedly connected with the test section, the power
Portion is used to drive the movement of the relatively described fixed part of the test section, passes through the movement pair of the relatively described fixed part of the test section
The first part applies the power far from the second part to detect the bonding strength of the first part and second part.
2. bonding strength detection device according to claim 1, which is characterized in that the fixed part include installing structure and
First locking mechanism, the detected material are installed on the installing structure, and first locking mechanism is described tested for locking
Survey object.
3. bonding strength detection device according to claim 2, which is characterized in that first locking mechanism includes gear
Block, locking bar and/or spanner, the block are used to lock the installation of the detected material, and the locking bar is for driving the block
Movement, the spanner is used to drive the movement of the locking bar.
4. bonding strength detection device according to claim 1, which is characterized in that the test section includes pull force calculation dress
It sets, the stretching force detecting apparatus is connect with the first part, for detecting the relatively described second part of the first part
Pulling force.
5. bonding strength detection device according to claim 4, which is characterized in that the test section includes connection structure,
One end of the connection structure is connected with the stretching force detecting apparatus, and opposite end is connected with the first part.
6. bonding strength detection device according to claim 5, which is characterized in that the connection structure includes for locking
Second locking mechanism of the first part, second locking mechanism are fixedly connected with the first part.
7. bonding strength detection device according to claim 6, which is characterized in that the connection structure includes pulling force connection
One end of bar, the pulling force connecting rod is connected with stretching force detecting apparatus, and opposite end is connect with second locking mechanism.
8. bonding strength detection device according to claim 7, which is characterized in that the connection structure includes lantern ring knot
Structure, the thimble structure are fixedly connected with second locking mechanism, and the thimble structure and the pulling force connecting rod activity connect
It connects.
9. bonding strength detection device according to claim 8, which is characterized in that the pulling force connecting rod include bar portion and
Limiting section, the bar portion pass through the thimble structure, and the limiting section is for limiting the bar portion to far from the detected material
Direction movement.
10. the bonding strength detection device according to one of claim 4-9, which is characterized in that the bonding strength detection
Device includes mounting base, and the stretching force detecting apparatus is installed to the mounting base, the mounting structure and institute by mounting structure
Mounting base flexible connection is stated, the power part drives the fortune of the stretching force detecting apparatus by driving the mounting structure movement
It is dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811388950.0A CN109709031A (en) | 2018-11-21 | 2018-11-21 | Bonding strength detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811388950.0A CN109709031A (en) | 2018-11-21 | 2018-11-21 | Bonding strength detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109709031A true CN109709031A (en) | 2019-05-03 |
Family
ID=66254268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811388950.0A Pending CN109709031A (en) | 2018-11-21 | 2018-11-21 | Bonding strength detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109709031A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579364A (en) * | 2020-05-19 | 2020-08-25 | 胡家润 | Lithium battery tab welding strength detection device |
| CN112345346A (en) * | 2020-10-29 | 2021-02-09 | 广东技术师范大学 | Clamp for testing welding tension of battery cell |
-
2018
- 2018-11-21 CN CN201811388950.0A patent/CN109709031A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579364A (en) * | 2020-05-19 | 2020-08-25 | 胡家润 | Lithium battery tab welding strength detection device |
| CN111579364B (en) * | 2020-05-19 | 2022-12-27 | 广东贝尔试验设备有限公司 | Lithium battery tab welding strength detection device |
| CN112345346A (en) * | 2020-10-29 | 2021-02-09 | 广东技术师范大学 | Clamp for testing welding tension of battery cell |
| CN112345346B (en) * | 2020-10-29 | 2023-12-08 | 广东技术师范大学 | Clamp for testing welding tension of battery cell |
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