CN114543701A - Battery seal nail assembly detection device - Google Patents
Battery seal nail assembly detection device Download PDFInfo
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- CN114543701A CN114543701A CN202210126497.6A CN202210126497A CN114543701A CN 114543701 A CN114543701 A CN 114543701A CN 202210126497 A CN202210126497 A CN 202210126497A CN 114543701 A CN114543701 A CN 114543701A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
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- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2433—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring outlines by shadow casting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means
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Abstract
The utility model provides a sealed nail assembly of battery detects, the device is used for detecting the sealed nail assembly condition of battery, and the device includes: the laser pen comprises a laser pen (2), a mechanical cantilever (3), an image acquisition device (5), a camera fixing plate (4), driving devices (7) and (8) and a base (1), wherein a base empty groove (9) is formed in the base, and a sealing nail feature is located below the base empty groove (9). The utility model provides a detection device detects the actual assembly condition of sealed nail through the difference in imaging section of analysis linear laser pen (2) in sealed nail characteristic department, has changed among the prior art and can only carry out the current situation that sealed nail detected with annotating the relative position of liquid mouth, and the installation cost is low, and detection effect is good, can effectively increase production efficiency.
Description
Technical Field
The disclosure relates to the field of battery production, in particular to a battery sealing nail assembly detection device.
Background
In order to respond to the national call for energy conservation and emission reduction, the new energy automobile industry develops rapidly, and the development of the power battery of the new energy automobile is driven. As the core part of a new energy automobile, the power battery has a decisive effect on the performance of the whole automobile in the production process of the power battery, and after the power battery is injected with electrolyte, a sealing nail matched with the liquid injection port needs to be installed before welding, so that the injected electrolyte cannot leak outwards. After the assembly of the sealing nail is qualified, laser welding can be carried out, the sealing effect is ensured, liquid leakage, external liquid or gas can not occur to enter the battery, and the quality of the battery is not affected, so that the assembly and welding of the sealing nail are very important links in the production process of the battery.
In patent "a battery seal nail positioning mechanism and battery production line" with publication number CN208570800U, a positioning mechanism is involved, which includes a suction cup, a second driving component and a visual positioning element, the visual positioning element is used for obtaining the assembly position of the seal nail on the battery; the second driving component is used for driving the sucker to move to the assembling position of the sealing nail according to the assembling position of the sealing nail obtained by the visual positioning element. The assembly position of the sealing nail is judged through the image information acquired by the camera, the structure is simple, and automatic production can be realized.
In patent application CN111740070A, application publication No. CN111740070A, a method, an apparatus, and a device for controlling assembly of a battery seal nail relates to a method for positioning and controlling assembly of a seal nail, the method includes sending an image acquisition command to an image acquisition device, receiving an image returned by the image acquisition device, recognizing a feature pattern in the image, acquiring a feature parameter corresponding to an assembly type according to the feature pattern, calculating an offset between the feature parameter and a reference parameter, and sending an assembly control command to an assembly device corresponding to the assembly type according to the offset, so as to calculate and determine an assembly position of the seal nail, thereby achieving automatic assembly.
In summary, in the prior art, when the assembly condition of the sealing nail is detected, an image is mainly acquired by a camera, the concentricity of the projection plane of the sealing nail and the liquid injection port in the image information is detected, and the assembly failure is determined when the concentricity of the sealing nail and the liquid injection port is not consistent. However, in actual production, even if the assembly detection of the sealing nail is qualified, the sealing nail is tilted and not completely installed, so that the problems of explosion points, insufficient welding and the like of a battery welded later occur, the cost is increased, and the production efficiency is influenced.
Disclosure of Invention
This disclosure is to among the prior art, sealed nail assembly vision concentricity detects the back, still can lead to rosin joint, explosion because of sealed nail assembly problem in battery welding process.
In actual detection, the assembly concentricity detection of the sealing nail meets the requirement, but the height of the nail head is additionally higher than the end face of the battery, and the welding of the sealing nail still has the problems of insufficient solder and explosion point. Therefore, the detection device for the assembly of the sealing nail is provided, and the device can detect whether the sealing nail has the warping nail or not before the welding of the sealing nail, so that the failure rate of the welding is reduced, the cost is reduced, and the like.
One of the concepts of the present disclosure is to introduce a light source into the detection device, change the imaging information of the sample to be detected by using the light source, and improve the detection accuracy of the conventional seal nail by matching with the relative position detection method in the prior art.
In the prior art, a method for detecting the relative position is used during assembly detection of the sealing nail, and most of the sealing nail and the liquid injection port used in the market are circular, so the existing detection method mainly adopts concentric circle detection, mainly utilizes a camera to shoot above an object to be detected and to judge whether the outer sides of projection surfaces of the sealing nail and the liquid injection port are in concentric circles, if so, the assembly of the sealing nail is qualified, and if not, the sample to be detected is detected and reprocessed. The method is characterized in that image information of the characteristic position of the sealing nail is collected by a 2D camera positioned above the sealing nail, the image information is processed by a computer, and the image information only contains plane information of the relative position between the sealing nail and a battery, namely two-dimensional plane picture information. However, in the actual processing process, after the sealing nail and the liquid injection port are in concentric circles and are detected to be qualified, a certain amount of defective products still exist in the subsequent processing. In the actual processing process, the sealing nail is higher than the end face of the battery to a certain extent, so that the qualification rate of a processed finished product is influenced, and the detection of the concentric circles can only detect the plane position and cannot reflect the height relation between the sealing nail and the end face.
Based on this, this openly introduces the light source subassembly and rectifies relative position detection information, changes the formation of image form of waiting to detect the thing through the light source subassembly, and is specific to shine out the shade of waiting to detect the seal nail through the light source, through the formation of image information of shade, cooperates the detection of relative position relation, and the information of multi-angle is judged, improves and detects the rate of accuracy.
It is specific, this disclosure increases at least one light source on the basis that camera received the single information source that comes from sealed nail, this light source shines the projection to sealed nail, the single information source that makes the original collection of camera becomes multisource information, according to multisource information, can judge the relative position of sealed nail and battery terminal surface and the height position information of sealed nail, like this in the testing process, both can guarantee that sealed nail concentricity meets the requirements, the horizontal plane that can guarantee sealed nail pin fin again keeps the unanimity of certain degree with the battery terminal surface in height, the nail of sticking up is avoided appearing.
Furthermore, one of the concepts of the present disclosure is to select a laser source as the light source, the laser has high concentration, the imaging of the light beam at the feature of the seal nail is obvious, and the use cost is low, so that the present disclosure is suitable for industrial production.
Furthermore, one of the concepts of the present disclosure is to select the laser light source as a laser pen.
Still further, another concept of the present disclosure is that the laser pointer is obliquely disposed, so that the light beam of the laser pointer is imaged at the sealing nail, and the shadow information and the structural information in the imaging are changed due to the height change of the sealing nail compared with the protrusion of the battery surface, so that the actual assembly condition of the sealing nail can be observed and detected more clearly.
Furthermore, one of the concepts of the present disclosure is that the laser pen is a linear laser pen, the laser pen projects a light beam to a characteristic of the seal nail, and a laser line in the imaging has a step difference due to a protrusion of the seal nail, so that the change is more obvious, and the observation and the detection are convenient.
The step difference serves as a second information source of multiple information sources, observation and collection are convenient, and the height of the sealing nail protrusion can be calculated by the step difference, so that whether the sealing nail assembly is qualified or not can be calculated.
Furthermore, the seal nail assembly detection device provided by the disclosure comprises a laser pen, a mechanical cantilever, an image acquisition device, a camera fixing plate, a driving device and a base. The mechanical cantilever is composed of a first cantilever and a second cantilever.
Still further, another concept of the present disclosure is that in order to adjust the position and angle of the laser pointer in the air, and more conveniently emit a light beam to the seal nail feature, the laser pointer is fixed on the second cantilever by a fixing device.
Specifically, the fixing device is fixed on the second cantilever in a pin shaft mode, so that the position and the height of the laser pen can be conveniently adjusted manually.
Furthermore, another design of the present disclosure is that the fixing device is provided with a through hole adapted to the diameter of the laser pen, the laser pen passes through the through hole and is fixed in the through hole, so that the installation is simple, the laser pen is convenient to adjust and replace, and the automatic operation of the production line is facilitated.
Still further, another concept of the present disclosure is to provide the first suspension arm and the second suspension arm with an adjustment groove, where the adjustment groove is long and is used to adjust and fix the telescopic length and the suspended height of the mechanical suspension arm.
Wherein, first cantilever and second cantilever pass through bolt and nut fixed connection.
Still further, another concept of the present disclosure is to provide the camera fixing plate with two vertical adjustment grooves to facilitate adjustment of a spatial position of a device connected to the camera fixing plate.
Furthermore, the adjusting groove of the first cantilever and the adjusting groove of the camera fixing plate are fixed together, so that the laser pen and the image acquisition device can be linked conveniently. The fixing mode on the adjusting groove is that a bolt is matched with a nut.
Still further, another concept of the present disclosure is that the camera fixing plate is used for fixing the image capturing device in the present technical solution, and the image capturing device is fixed on the camera fixing plate through a fixing device. One end of the camera fixing plate is connected with the action end of the driving device, so that the driving device can drive the image acquisition device to change the space position conveniently, and the position of the characteristic of the sealing nail can be positioned more accurately.
Furthermore, in order to increase the production detection efficiency, the laser pen and the image acquisition device can conveniently cooperate and can fix a position the sealed nail characteristic simultaneously with both, this technical scheme uses the bolt to pass the adjustment tank on the first cantilever, will through the nut mechanical cantilever is fixed on the camera fixed plate.
Still further, another concept of the present disclosure is that the driving device includes a servo motor and a servo module.
The servo motor provides power for the driving device, and the servo module is fixedly connected with one end of the camera fixing plate through a fastener.
Specifically, when drive arrangement receives the positional information of sealed nail characteristic department, driving motor provides power, and the drive module drives and is connected with the camera fixed plate image acquisition device with the sealed nail characteristic department of laser pen location makes the laser pen have obvious formation of image in sealed nail characteristic department, and image acquisition device is located sealed nail characteristic department perpendicular bisector directly over.
Furthermore, the servo motor is electrically connected with the servo module.
Furthermore, another idea of the present disclosure is that a rectangular empty groove having a length not exceeding the length of the base and a width equal to one time of the diameter of the sealing nail is provided in the middle of the base, and the base is kept horizontal with respect to the ground. The empty slot below is equipped with and waits to detect the position in storehouse, it is equipped with the sensor to detect the position in storehouse, the sensor is used for responding to the concrete position information of sealed nail characteristic department.
Furthermore, when the battery to be detected is transmitted to the bin to be detected, the sensor acquires the position information of the characteristic position of the sealing nail, the acquired position information is transmitted to the computer, the driving device adjusts the positions of the laser pen and the image acquisition device, the light beam of the laser pen can be ensured to be obviously imaged at the characteristic position of the sealing nail, and because of the empty slot, the influence of other elements or other devices of the battery on the imaging information is weakened, the detection accuracy is improved, and the automatic assembly line detection and production are facilitated.
Still further, another idea of the present disclosure is that the image capturing device is used as one of the visual detection elements, and in use, the first step collects the information source of the laser pen on the imaging of the seal nail and the seal nail itself; and in the second step, the picture information is transmitted to a computer for calculating and analyzing the assembling condition of the sealing nail.
Furthermore, in the prior art, an image acquisition device has been used as one of the visual elements for positioning and installing the battery seal nail, and the device can be directly used as the image acquisition device used in the previous assembly process when the assembly condition of the battery seal nail is detected, so that the cost is further saved, and the detection efficiency is increased.
For prior art, this battery seal nail assembly detection device that this disclosure provided, in the middle of using the optical principle of laser to seal nail assembly detection, angle, height, the formation of image of distance isoparametric of cooperation mechanical cantilever control laser pen are in sealed nail characteristic department, poor information in the analysis image information to this detects sealed nail assembly condition, further promotes detection effect. The driving device drives the laser pen and the image acquisition device to cooperatively operate, and the adjusting groove is used for manually adjusting the height, the telescopic length and the like of the mechanical cantilever, so that the production efficiency of an automatic production line is further improved, and the product quality is improved.
In some embodiments, an angle sensor is arranged in the fixing device for fixing the laser pen, and the angle sensor is used for monitoring the inclination angle of the laser pen; the inclination angle of the laser pen is driven by a power device.
In some embodiments, the mechanical boom swings, rotates, adjusts position is powered by power means including hydraulic drive means, pneumatic cylinder drive means, electric drive means, and the like. An arm rotation lifting mechanism is arranged at an elbow joint of the mechanical cantilever, so that the mechanical cantilever can rotate in the lifting process.
In some embodiments, a lift position detector and a telescopic position detector are provided within the mechanical cantilever. The lifting position detector is used for detecting the height of the mechanical cantilever in real time; the telescopic position detector is used for monitoring the telescopic length of the mechanical cantilever in real time.
In some embodiments, the battery seal nail assembly detection device operates in conjunction with a battery production line, and automatically detects, the process comprising: automatic/manual feeding; the sensor outputs specific position information of the sealing nail characteristic position; the driving device drives the laser pen and the image acquisition device to position the sealing nail; imaging the laser pen at the seal nail feature; acquiring image information of the seal nail characteristic position; and analyzing the image information by the computer and judging the assembling condition of the sealing nail.
Drawings
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.
The present disclosure will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the present disclosure. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.
Fig. 1 is a specific embodiment of a battery seal nail assembly detection device according to the present disclosure.
FIG. 2 is a step imaging at a seal pin feature.
Fig. 3 is a production flow chart of the battery seal nail assembly detection.
FIG. 4 is a simplified schematic diagram of an assembly, inspection and welding automation line.
Wherein, the reference numbers: 1-a base; 2-a laser pen; 3-a mechanical cantilever; 31-a first cantilever; 32-a second cantilever; 4-camera fixing plate; 5-an image acquisition device; 6-a scaffold; 7-a servo module; 8-a servo motor; 9-a base empty slot; 10-adjusting groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.
The present disclosure is described in detail below with reference to fig. 1 to 4.
An embodiment of a battery seal nail assembly detection method is specifically shown in fig. 1 and comprises a laser pen and component and an image acquisition device, wherein the laser pen and component comprise a laser pen 2 and a mechanical cantilever 3 for fixing the laser pen 2, and the image acquisition device comprises an image acquisition device 5.
The device also comprises driving devices 7 and 8 for driving the image acquisition device 5 to move, a camera fixing plate 4, a bracket 6 and the base 1.
The support 6 has a supporting function and is used for supporting the driving devices 7 and 8, and the support 6 is fixed on the base 1.
Drive arrangement 7 and 8, including servo module 7 and servo motor 8, servo module 7 includes transmission such as transmission shaft, track, servo motor 8 provides power for servo module 7. The driving devices 7 and 8 are mainly used for driving the image acquisition device 5 and the laser pen 2 to perform space position transformation, and the servo module 7 is electrically connected with the servo motor 8.
The image acquisition device 5 is fixed on the camera fixing plate 4 through a fixing device.
The adjusting groove 10 of the first cantilever 31 of the fixed laser pointer 2 passes through a bolt and is fixed on the camera fixing plate 4 by a nut.
One end of the camera fixing plate 4 is fixed at the middle end of the servo module 7 through a fastener, and when the servo motor 8 and the servo module 7 drive the camera fixing plate 4 to move, the image acquisition device 5 and the laser pen 2 can be driven to move together.
Further, in order to ensure that the image capturing device 5 and the laser pen 2 can be simultaneously positioned at the seal nail feature on the battery automation production line, in the embodiment, the inclination angle and the height of the laser pen 2 and the height of the image capturing device 5 are fixed, and the driving devices 7 and 8 generally only move in the horizontal direction when driving the laser pen 2 and the image capturing device 5 to move.
In this embodiment, the image capturing device 5 is a 2D camera, and the 2D camera is simple to operate and high in use efficiency in this embodiment.
The base 1 is provided with a base empty groove 9, the width of the base empty groove 9 is slightly larger than the diameter of the battery sealing nail by 2-3cm, and when a battery to be detected is located below the base empty groove 9, the influence of other components on the battery on the segment difference imaging of light beams at the characteristic position of the sealing nail due to the conditions of light reflection and the like can be reduced.
The corresponding use method of this embodiment is specifically as follows:
when the battery to be detected is located below the base empty groove 9, the sensor located below the base empty groove 9 acquires position information of the characteristic position of the sealing nail, and the sensor transmits the position information to the computer. The computer is used for controlling the driving device and analyzing the image information.
Computer controlled drives 7 and 8 locate the seal pin feature.
The driving devices 7 and 8 drive the image acquisition device 5 on the fixing plate 4 to move right above the central axis of the battery seal nail, so that the 2D camera 5 is positioned at the seal nail characteristic position.
The first cantilever 31 for fixing the laser pen 2 is fixedly connected with the camera fixing plate 4, so that when the driving devices 7 and 8 drive the camera fixing plate 4 to move, the mechanical cantilever 3 can move along with the camera fixing plate.
The inclination angle of the laser pen 2 after the positioning is 45 degrees, the height of the laser light source horizontal plane is 40cm away from the horizontal plane of the sealing nail characteristic part, and the laser pen 2 can clearly and obviously form images on the sealing nail characteristic part.
The inclined laser pen 2 shoots light beams at the characteristic position of the battery 8 seal nail, and the light beams are imaged at the characteristic position of the seal nail to generate a certain step difference;
further, when the laser pen meets the conditions of the inclination angle, the height and the distance in the embodiment, the threshold value of the section difference in the imaging of the qualified product is 0mm-12 mm;
further, the 2D camera 5 acquires step imaging information, and then transmits the step imaging information to the computer, and the computer determines whether the assembly is acceptable by comparing whether the step in the imaging is within a set threshold range.
Based on the foregoing embodiments, the present disclosure provides a specific example of the production flow on the production line as shown in fig. 2 to 3, as follows:
s1: the battery cell reaches the production line point position; after sensing that the battery cell reaches the point position of the production line, a sensor of the production line sends a pulse signal to the driving devices 7 and 8;
s2: the driving devices 7 and 8 drive the 2D camera 5 to position the sealing nail feature of the battery, and the adjusted laser pen 2 can also hit a light beam at the sealing nail feature right after the 2D camera 5 and the laser pen 2 are positioned on the same vertical plane;
s3: the laser pen 2 emits linear laser, light beams form images at the characteristic positions of the seal nails, and the 2D camera 5 collects multiple information sources in the images and transmits the multiple information sources to the computer;
s4: the computer determines whether the assembly of the sealing nail is qualified or not and whether the sealing nail is warped or not by judging whether the section difference is in a normal value or not, the qualified assembled product is transmitted to the next link, and the unqualified assembled product is automatically recovered;
s5: the image acquisition device takes pictures of the welding track and transmits the pictures to the computer;
s6: the computer judges whether the welding track is abnormal or not, the abnormal product is recovered, and the abnormal product is transmitted to the next link;
s7: the computer judges the welding point position according to the welding track;
s8: the computer controls the laser head to weld, and the smoke and dust removal pipeline works, so that the welding effect and other equipment works are prevented from being influenced by smoke dust;
s9: the welded product will enter the next production line.
In the specific embodiment, a light source is arranged below the camera lens, so that sufficient light at the characteristic part of the sealing nail is ensured, and the imaging effect of laser is ensured.
In the embodiment, the sealing nail assembly detection method is applied to the automatic battery sealing nail detection and welding production line, and has the advantages of good detection effect, simple structure, convenience in installation, low cost and the like.
In one embodiment, the step imaging during the seal pin assembly inspection is shown in fig. 4, wherein the left side of the figure is the deviated laser track, the middle of the figure is the normal laser track, and the step value is the vertical distance l1 from the center point of the deviated laser track to the normal laser track in fig. 4.
In one embodiment, the battery seal nail assembly detection device provided by the present disclosure is operated in conjunction with a battery production line, and automatically detects, and comprises: automatic/manual feeding; the sensor outputs specific position information of the sealing nail characteristic position; the driving device drives the laser pen and the image acquisition device to position the sealing nail; imaging the laser pen at the seal nail feature; acquiring image information of the characteristic position of the seal nail; and analyzing the image information by the computer and judging the assembling condition of the sealing nail.
The beneficial effect that battery production line has is the same with the beneficial effect that above-mentioned battery seal nail assembly detection device brought, and no longer repeated here.
The present disclosure has been described in detail above, and the principles and embodiments of the present disclosure have been explained herein using specific examples, which are provided only to assist understanding of the present disclosure and the core concepts. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present disclosure without departing from the principle of the present disclosure, and such improvements and modifications also fall within the scope of the claims of the present disclosure.
Claims (10)
1. The device for detecting the assembly of the battery sealing nail is characterized by comprising a light source component, a mechanical cantilever and an image acquisition device;
the light source assembly is used for irradiating a station to be detected to cause image change of the battery sealing nail;
the mechanical cantilever is used for adjusting and/or fixing the light source component;
the image acquisition device is used for acquiring the image information of the station to be detected.
2. The apparatus as claimed in claim 1, wherein the light source assembly is a laser light source assembly; the laser light source component is a laser pen.
3. The battery seal pin assembly inspection device of claim 1, wherein the image capture device is a camera.
4. The battery seal pin assembly inspection device of claim 1, wherein the mechanical cantilever comprises a first cantilever and a second cantilever;
the first cantilever and the second cantilever are both provided with adjusting grooves;
the adjusting groove is used for manually adjusting and/or fixing the height and/or the angle of the mechanical cantilever.
5. The battery seal pin assembly test device of claim 4, wherein the first cantilever is connected to the fixture; the fixing device is used for increasing the stability of the fixed component.
6. The battery seal pin assembly inspection device of claim 5, wherein the fixture comprises a camera fixture plate and a bracket.
7. The battery seal pin assembly inspection device of claim 5, wherein the fixture is coupled to a drive mechanism, the drive mechanism being configured to adjust the height and/or angle of the mechanical cantilever and the image capture device.
8. The battery seal nail assembly detection device of claim 7, wherein the driving device comprises a hydraulic driving device, a pneumatic driving device, a motor driving device, and the like.
9. The battery seal nail assembly detection device of claim 1, wherein the detection device further comprises a support device and a base;
wherein the supporting device is used for supporting the driving device;
the base comprises a battery bin to be detected.
10. A battery production line characterized by comprising the battery seal nail assembly detecting device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210126497.6A CN114543701A (en) | 2022-02-10 | 2022-02-10 | Battery seal nail assembly detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210126497.6A CN114543701A (en) | 2022-02-10 | 2022-02-10 | Battery seal nail assembly detection device |
Publications (1)
| Publication Number | Publication Date |
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| CN114543701A true CN114543701A (en) | 2022-05-27 |
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| CN202210126497.6A Pending CN114543701A (en) | 2022-02-10 | 2022-02-10 | Battery seal nail assembly detection device |
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