CN220671590U - Detection device for probe plate of needle bed - Google Patents
Detection device for probe plate of needle bed Download PDFInfo
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- CN220671590U CN220671590U CN202322354833.5U CN202322354833U CN220671590U CN 220671590 U CN220671590 U CN 220671590U CN 202322354833 U CN202322354833 U CN 202322354833U CN 220671590 U CN220671590 U CN 220671590U
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- probe
- needle bed
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- probe card
- module
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- 239000000523 sample Substances 0.000 title claims abstract description 129
- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 54
- 238000007689 inspection Methods 0.000 claims 6
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 14
- 230000006835 compression Effects 0.000 abstract description 12
- 238000007906 compression Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Measuring Leads Or Probes (AREA)
Abstract
The utility model provides a detection device of a probe card of a needle bed, and relates to the technical field of battery production. The detection device comprises: an upper needle bed in which a probe card is installed; the upper surface of the probe testing device comprises a plurality of pressure sensors, and each probe is provided with a pressure sensor for independently testing the pressure after the probe testing tool is pressed up and down with a probe board to be tested; the collecting and controlling module comprises a collecting module and a tool main control board, wherein the collecting module is used for collecting the pressure detected by the pressure sensor, and the tool main control board is used for sending a collecting instruction to the collecting module and uploading collecting data; the lower needle bed is provided with a supporting plate capable of positioning and placing the probe testing device and a lifting device capable of lifting the supporting plate for placing the probe testing device for a certain distance. The utility model can synchronously measure the compression amount of the probe and the resilience force of the probe to judge whether the performance of the probe meets the requirement of the inserting process of the battery or not, and ensure the welding quality of the battery module.
Description
Technical Field
The utility model relates to the technical field of battery production, in particular to a detection device of a probe card of a needle bed.
Background
As lithium batteries have grown in great roles in people's lives, the production quality of lithium batteries has grown more important. The charge and discharge device is an important device in the production of lithium batteries. In the current lithium battery technology, there are two procedures to test the charge and discharge of the battery, which are respectively: the formation process activates the battery and the capacity-dividing process calibrates the battery capacity. The charge and discharge test process comprises the following steps: after the battery is placed in the lower needle bed, the upper needle bed and the lower needle bed are pressed to the battery, the probe of the probe card is contacted with the battery, and the device forms a loop with the battery to charge and discharge. The probe is internally provided with a spring, and the probe is extruded to move towards the inner direction of the probe plate along with the pressing, so that a certain compression amount is generated, a certain resilience force is provided, and the probe is ensured to be fully contacted with the battery.
At present, when the needle bed and the battery are pressed, the probe and the battery pressed part at the outermost side of the probe plate can be visually detected by manpower, and no tool detection scheme is used. This results in the following problems: 1. whether the compression amount of all the probes meets the process requirement cannot be judged, if the probe fixing plate of the probe plate is poor in flatness (concave towards the inside), the contact between the middle probe and the battery is insufficient, the contact resistance is overlarge, extra heat is generated, energy waste is caused, and the risk exists in the safety of the warehouse; 2. too large compression amount leads to too high resilience force, and can lead to the probe to produce irreversible indentation to the battery post, influences the module welding effect.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a detection device for a probe card of a needle bed, which uses a specific device to test the compression amount and the rebound force of a probe, ensures that the used needle bed has qualified performance and avoids the problems in the production process of batteries.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
the utility model provides a detection device of a probe card of a needle bed, comprising:
an upper needle bed in which a probe card is installed;
the upper surface of the probe testing device comprises a plurality of pressure sensors, and each probe is provided with a pressure sensor for independently testing the pressure after the probe testing tool is pressed up and down with a probe board to be tested;
the collecting and controlling module comprises a collecting module and a tool main control board, wherein the collecting module is used for collecting the pressure detected by the pressure sensor, and the tool main control board is used for sending a collecting instruction to the collecting module and uploading collecting data;
the lower needle bed is provided with a supporting plate capable of positioning and placing the probe testing device and a lifting device capable of lifting the supporting plate for placing the probe testing device for a certain distance.
Optionally, the arrangement mode of the pressure sensors on the upper surface of the probe testing device is consistent with the arrangement mode of the probes on the probe board to be detected, the positions are in one-to-one correspondence, and after the two pressure sensors are pressed, the probes are contacted with the pressure sensors from the upper part.
Optionally, the mounting position of the pressure sensor protrudes outside the upper surface of the probe testing device, and the probe does not extend into the probe testing device in the detection process.
Alternatively, each pressure sensor is mounted at the same height.
Optionally, the pressure sensor is connected with the acquisition module by adopting a wire harness, the tool main control board is connected with the acquisition module by adopting a wire harness, and the tool main control board can store the detection pressure value of the pressure sensor.
Optionally, the probe testing device is provided with a tool electricity taking port for supplying power to the device and providing an interface of the wire harness.
Optionally, the lifting device of the lower needle bed is lifted or lowered under the control of the needle bed control module.
The beneficial effects of the utility model are as follows:
1. the utility model can synchronously measure the compression amount of the probe on the board and the resilience force of the probe to judge whether the performance of the probe meets the requirement of the battery inserting process. The problem that extra heat is generated due to overlarge resistance of the middle probe after the probe plates are pressed is avoided. The problem that irreversible indentation is generated on the battery pole due to overlarge resilience force of the probe is avoided, and the welding quality of the battery module is guaranteed.
2. The utility model relates to a detection device of a probe plate component of a needle bed used on a battery production line, which uses the needle bed component with qualified detected performance and stable state, ensures the stable quality of battery products technically, and can avoid the quality problem in the battery production process in advance.
3. The utility model has simple structure, the probe testing device can be integrated into a box, and the use is convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
In the figure: the mutual spacing or dimensions are exaggerated for the purpose of showing the positions of the various parts, and the schematic illustrations are used for illustration only.
Fig. 1 is a schematic diagram of the structure of a detection device for a needle bed probe in example 1.
Fig. 2 is a schematic structural diagram of a probe testing tool in embodiment 1.
Wherein, 1, an upper needle bed, 2, a probe fixing plate, 3, a probe, 4, a pressure sensor, 5, an acquisition module, 6, a tool main control board, 7, a tool power taking port, 8, a probe testing device, 8-1, a supporting plate, 9, a lifting device, 10, an upper computer, 11, a middle computer, 12, a left limiting rod, 13, a right limiting rod, 14, a lower needle bed, 15 and a needle bed control module.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
Example 1:
as shown in fig. 1, a probe card detection device of a needle bed includes:
an upper needle bed 1, in which a probe card is installed;
the probe card includes: the probe fixing plate 2 and the probes 3, the probes 3 are arranged on the lower surface of the probe fixing plate 2, and the probes 3 are provided with springs, so that the probes can retract to the direction of the probe fixing plate 2 for a certain distance under external pressure, and the resilience force of the springs is increased due to the increase of the compression amount of the springs in the retraction process.
The probe testing device 8, the probe testing device 8 comprises a plurality of pressure sensors 4, and after the probe testing device 8 and a probe board to be tested are pressed up and down, each probe 3 is provided with a pressure sensor 4 for independently testing the pressure;
the acquisition and control module comprises an acquisition module 5 and a tool main control board 6, wherein the acquisition module 5 is used for acquiring the pressure detected by the pressure sensor 4, and the tool main control board 6 is used for sending an acquisition instruction to the acquisition module 5 and uploading acquisition data.
A lower needle bed 14 in which a pallet 8-1 on which the probe test device 8 is placed can be positioned, and a lifting device 9 capable of lifting the pallet 8-1 on which the probe test device 8 is placed by a certain distance;
the lower needle bed 14 comprises a needle bed control module 15, and the needle bed control module 15 is used for controlling the lifting device 9 to lift or descend.
The lifting height of the lifting device 9 is the compression amount of the probe 3.
The arrangement mode of the pressure sensors 4 on the probe testing device 8 is consistent with the arrangement mode of the needle bed probes 3 to be detected, the positions are in one-to-one correspondence, and after the two are pressed, the probes 3 are contacted with the pressure sensors 4 from the upper part; by collecting the pressure value of each pressure sensor 4, the resilience force of the probes 3 under a specific compression amount can be obtained, and if the resilience forces of all the probes 3 are the same or all the probes are within a qualified range, the upper needle bed and the probe plate have no quality problem, and the requirement of the battery inserting process can be met.
The mounting position of the pressure sensor 4 protrudes outside the upper surface of the testing device 8, and the probe does not extend into the testing device during the detection process, so as to prevent the probe card from being damaged during the detection process.
The mounting height of each pressure sensor 4 is the same, and the compression amount of each probe 3 at the same time is the same in the detection process, so that the resilience of the probe 3 can be quantitatively evaluated, and an abnormal state in which the resilience is too large or too small can be detected.
A limiting piece is arranged between the upper needle bed 1 and the lower needle bed 14, so that the probe plate to be detected and the probe testing device cannot move horizontally in the testing process.
Adopt pencil connection (in the drawing dashed line) between pressure sensor 4 and the collection module 5, adopt pencil connection (in the drawing dashed line) between frock main control board 6 and the collection module 5, frock main control board 6 can store the detected pressure value of all pressure sensor 4, makes things convenient for the inspector to look for the position of the unusual probe 3 of resilience force according to the pressure value that detects.
Optionally, the locating part includes left gag lever post 12 and right gag lever post 13, and the length direction of locating part is the same with the lifting direction of lifting device 9, and in the testing process, left gag lever post 12 and right gag lever post 13 can insert in the spacing hole of needle bed 1, prevent to take place between pressure sensor 4 and the probe 3 that lateral friction damages probe 3 surface.
Optionally, the test control module includes an upper computer 10 and a middle computer 11 connected by a cable.
The upper computer 10 is a computer, provides a user operation interface convenient for operation, and is convenient for a user to issue commands.
The middle position machine 11 is connected with the upper position machine and the lower needle bed equipment, receives the commands of the upper position machine, and calls and converts the commands
The needle bed control module 15 is a PLC integrated device, receives the middle machine instruction and executes the middle machine instruction
The upper computer 10 can send a needle bed closing command, and sends the command to the needle bed control module 15 through the middle computer 11 to control the lifting height of the lifting device 9 of the lower needle bed;
the upper computer 10 can issue a command for collecting test values, and the test values reach the tool main control board 6 through the middle computer 11, so that the pressure sensor 4 connected with the pressure value collecting module 5 is controlled to start collecting the pressure values.
The probe testing device 8 is provided with a tool power taking port 7 for supplying power to the device and providing an interface of a wire harness.
As shown in fig. 2, the multiple pressure sensors 4, the collecting module 5, the tool main control board 6, the outer box and the tool power taking port 7 of the probe testing device 8 can be integrated into a box-shaped device, the box-shaped device can be detachably positioned and placed on the supporting plate 8-1 above the lifting device 9, so that the box-shaped probe testing devices 8 with different specifications can be replaced according to the probe boards with different specifications, and the tool power taking port 7 is connected with other connecting lines.
The method of using the probe card detection device of the needle bed is as follows.
The probe card to be inspected is mounted in the upper needle bed 1 with the probes 3 directed downward.
The probe testing device 8 is placed in the supporting plate 8-1 of the lower needle bed, so that the probes 3 of the probe plate correspond to the upper and lower positions of the pressure sensor 4 one by one, the line is connected through the tool power taking port 7, the middle position machine 11 is communicated with the tool main control board 6, and the preparation work before testing is completed.
The operator issues a needle bed closing command through the upper computer 10, the lifting device 9 starts to act and moves upwards until the right limiting rod 13 and the left limiting rod 12 extend into the limiting holes of the upper needle bed 1, then the operator continuously lifts the set distance, and the pressing action of the upper needle bed and the lower needle bed is completed.
Preferably, the upper computer 10 issues a needle bed closing command, the lifting device is controlled by the middle computer 9 and the needle bed control module 15, the lifting device 9 starts to move upwards until the left limit pull rod 12 and the right limit pull rod 13 extend into the limit hole of the needle bed positioning tool 1 to a specific depth, and the needle bed pressing action is completed.
After the needle bed pressing action is finished, the probes 3 and the pressure sensors 4 are in a one-to-one corresponding contact state, and the springs in the probes 3 are compressed to generate resilience force and act on the pressure sensors 4, so that the test can be started after the whole mechanism is stabilized.
The tool main control board 6 sends out an acquisition instruction to the acquisition module 5, the acquisition module 5 starts to acquire all pressure values of the pressure sensors 4 according to a certain sequence, uploads recorded data and outputs a test data document.
Preferably, the upper computer 10 issues a command for collecting the test value, and the test value reaches the tool main control board 6 through the middle computer 9 to start collecting the pressure value.
The pressure acquisition module 5 starts to acquire a pressure value and uploads the pressure value to the tool main control board 6, the tool main control board 6 uploads data to the upper computer 10, and the upper computer 10 records and outputs the data record.
And comparing the pressure data acquired by the tool according to the pressure value reports under the condition of different compression amounts of the probe 3 to obtain the compression amount data of the probe.
Because the tool main control board 6 has a storage function, data loss in data transmission can be prevented.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (10)
1. A probe card detection device of a needle bed, comprising:
an upper needle bed in which a probe card is installed;
the upper surface of the probe testing device comprises a plurality of pressure sensors, and each probe is provided with a pressure sensor for independently testing the pressure after the probe testing tool is pressed up and down with a probe board to be tested;
the collecting and controlling module comprises a collecting module and a tool main control board, wherein the collecting module is used for collecting the pressure detected by the pressure sensor, and the tool main control board is used for sending a collecting instruction to the collecting module and uploading collecting data;
the lower needle bed is provided with a supporting plate capable of positioning and placing the probe testing device and a lifting device capable of lifting and setting the supporting plate for placing the probe testing device for a set distance.
2. The probe card detection device of the needle bed according to claim 1, wherein the arrangement of the plurality of pressure sensors on the test device is consistent with the arrangement of the needle bed probes to be detected, the positions are in one-to-one correspondence, and after the two are pressed, the probes are contacted with the pressure sensors from above.
3. The probe card inspection apparatus of the needle bed according to claim 1, wherein the mounting position of the pressure sensor is protruded outside the upper surface of the testing device, and the probe does not protrude into the testing device during the inspection.
4. The probe card detection apparatus of a needle bed according to claim 1, wherein each of the pressure sensors is installed at the same height.
5. The probe card detection apparatus of the needle bed according to claim 1, wherein the pressure sensor is connected to the acquisition module by a harness.
6. The probe card detection device of the needle bed according to claim 1, wherein the pressure sensor is connected with the acquisition module by a wire harness, the tool main control board is connected with the acquisition module by a wire harness, and the tool main control board can store the detection pressure value of the pressure sensor.
7. The probe card inspection device of the needle bed of claim 1, wherein the plurality of pressure sensors, the collection module, the tool main control board, the outer case and the tool power take-off port of the probe test device can be integrated into a box-shaped device, and the box-shaped device can be detachably positioned on the supporting plate above the lifting device.
8. The probe card detection device of the needle bed according to claim 1, wherein the lifting device of the lower needle bed can be lifted or lowered under the control of the needle bed control module.
9. The probe card inspection apparatus of the needle bed according to claim 1, wherein a stopper is provided between the upper needle bed and the lower needle bed so that the probe card to be inspected and the probe inspection apparatus cannot move horizontally during the inspection.
10. The probe card detection device of the needle bed according to claim 9, wherein the stopper includes a left stopper rod and a right stopper rod, the length direction of the stopper is the same as the lifting direction of the lifting device, and the left stopper rod and the right stopper rod can be inserted into the stopper hole of the upper needle bed during the test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322354833.5U CN220671590U (en) | 2023-08-29 | 2023-08-29 | Detection device for probe plate of needle bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322354833.5U CN220671590U (en) | 2023-08-29 | 2023-08-29 | Detection device for probe plate of needle bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220671590U true CN220671590U (en) | 2024-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322354833.5U Active CN220671590U (en) | 2023-08-29 | 2023-08-29 | Detection device for probe plate of needle bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220671590U (en) |
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2023
- 2023-08-29 CN CN202322354833.5U patent/CN220671590U/en active Active
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