Lithium battery long cover plate pin detection tool

Abstract

The utility model discloses a lithium battery long cover plate pin detection tool comprising a pedestal which is provided with a cover plate groove for placing a long cover plate; the two pin grooves are perpendicular to and communicated with the two ends of the cover plate groove respectively, two pins at the two ends of a long cover plate are placed in the two pin grooves, the distance between the two pin grooves is determined according to product tolerance, and when the two pins are placed in the two pin grooves with the set distance, the two pins are placed in the two pin grooves with the set distance. The distance between the two pins meets a standard value, and the angle error of the pins at the 90-degree bending position meets the standard. Therefore, whether the distance between the pins is qualified or not can be efficiently and accurately detected, the method is suitable for complex production error conditions, and a powerful guarantee is provided for lithium battery production quality control.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery production detection equipment technical field especially relates to a lithium battery long cover plate pin detection frock. BACKGROUND

[0002] In lithium battery production, the two pins (the pin is perpendicular to the long cover plate, and the two pins are positive and negative pins respectively) at both ends of the long cover plate are generally formed by stamping through a die after using copper sheet or aluminum sheet (generally not more than 2mm thickness), and will also undergo processes such as riveting. Due to material properties and process limitations, after die stamping, the pin often has angle error at the 90-degree bending part, and the overall size may also deviate from the standard value due to various processes; in addition, subsequent processes such as riveting will also cause errors. In order to avoid using pins with errors, which in turn leads to the problem of unqualified lithium battery production, the pins are generally detected to screen out pins with errors and not meeting the requirements.

[0003] Traditional detection methods mostly rely on manual or complex equipment, which is low in efficiency and insufficient in accuracy, and it is difficult to quickly and accurately determine whether the distance between the positive and negative pins meets the shipment standard. If the distance between the two pins is unstable, it will cause problems in welding the battery cell. Therefore, there is an urgent need for an efficient detection frock similar to the principle of go-no-go gauge and suitable for complex pin error conditions. UTILITY MODEL CONTENT

[0004] To solve the technical problems in the background art, the utility model provides a lithium battery long cover plate pin detection frock.

[0005] The utility model provides a lithium battery long cover plate pin detection frock, which comprises a base, and the base is provided with:

[0006] A cover plate groove for placing the long cover plate;

[0007] Two pin grooves perpendicular to and communicating with both ends of the cover plate groove for placing the two pins at both ends of the long cover plate, and the distance between the two pin grooves is determined according to the product tolerance. When the two pins are placed in the two pin grooves with a set distance, the distance between the two pins meets the standard value, and the angle error of the pin at the 90-degree bending part meets the standard.

[0008] Preferably, the two side walls of the pin groove are made of elastic material.

[0009] Preferably, a controller is further included, the bottom of the pin slot is spaced apart with a plurality of liftable pincers, the pincers are connected with micro displacement sensors, the pincers and the micro displacement sensors are communicatively connected with the controller, when the pin is inserted into the pin slot, the pincers are displaced by the pin, the micro displacement sensors receive signals and feed data to the controller, so as to determine whether the thickness and overall flatness of the pin are within the tolerance range.

[0010] Preferably, one side of the base is further provided with a rotatable detection arm, an end of the detection arm is provided with a laser range finder, the detection arm and the laser range finder are communicatively connected with the controller, when the pin is placed in the pin slot, the detection arm drives the laser range finder to rotate to the bending position of the pin, the bending angle is measured from multiple angles, the laser range finder transmits data to the controller for analysis and calculation, and if the angle exceeds the preset tolerance range, the controller determines that the pin is unqualified.

[0011] Preferably, the controller is connected with a display screen.

[0012] Preferably, the elastic material is a high-strength rubber and metal composite material.

[0013] Preferably, the connecting position of the cover plate slot and the pin slot is further provided with a position avoiding slot.

[0014] In summary, the long cover plate is placed in the cover plate slot, and when two pins are placed in two pin slots with a set distance, the distance between the two pins meets the standard value, and the angle error of the pin at the 90° bending position meets the standard; if the two pins cannot be smoothly placed in the two pin slots, then the distance between the two pins is unqualified, the distance between the two pins can be efficiently and accurately detected, the complex production error situation is adapted, and powerful guarantee is provided for lithium battery production quality control.

[0015] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional schematic view of the lithium battery long cover plate pin detection tool of the embodiment of the present application Figure One ;

[0017] Figure 2 A three-dimensional schematic view of the lithium battery long cover plate pin detection tool of the embodiment of the present application Figure Two .

[0018] In the drawings:

[0019] 1, base; 2, long cover plate; 3, cover plate groove; 4, pin groove; 5 pin; 6, detection arm; 7, laser range finder; 8, avoidance slot. DETAILED DESCRIPTION

[0020] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar symbols represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0021] As shown in the drawings, the long cover plate pin detection tool for lithium battery proposed in the embodiment comprises a base 1, and the base 1 is provided with: Figures 1-2

[0022] A cover plate groove 3 for placing the long cover plate 2;

[0023] Two pin grooves 4 vertically and communicatively connected with both ends of the cover plate groove 3 for placing two pins 5 at both ends of the long cover plate 2, and the spacing between the two pin grooves 4 is determined according to the product tolerance. When the two pins 5 are placed in the two pin grooves 4 with a set spacing, the distance between the two pins 5 meets the standard value, and the angle error of the pin 5 at the 90° bending position meets the standard.

[0024] Specifically, the connection between the cover plate groove 3 and the pin groove 4 is also provided with an avoidance slot 8 to avoid interference.

[0025] In this way, when the long cover plate 2 is placed in the cover plate groove 3 and the two pins 5 are placed in the two pin grooves 4 with a set spacing, the distance between the two pins 5 meets the standard value, and the angle error of the pin 5 at the 90° bending position meets the standard. If the two pins 5 cannot be smoothly placed in the two pin grooves 4, then the spacing between the two pins 5 is unqualified, and the spacing between the two pins 5 can be efficiently and accurately detected, which is suitable for complex production error conditions and provides strong guarantee for lithium battery production quality control.

[0026] Further, the two side walls of the pin groove 4 are made of elastic material, specifically, the elastic material is high-strength rubber and metal composite material. When the pin 5 is inserted into the pin groove 4, the elastic side wall of the pin groove 4 can be self-adaptively adjusted according to the actual size and slight angle deviation of the pin 5, which can not only ensure the close fitting detection of the standard size pin, but also accommodate a certain range of size and angle error.

[0027] ​Further, a controller (not shown in the figure) is further included, a plurality of liftable pogo pins (not shown in the figure) are arranged at the bottom of the pin slot 4, the pogo pins are connected with micro displacement sensors (not shown in the figure), and the pogo pins and the micro displacement sensors are communicatively connected with the controller; when the pin 5 is inserted into the pin slot 4, the pogo pins are displaced by the pin 5, the micro displacement sensors receive signals and feed back data to the controller, so as to determine whether the thickness and overall flatness of the pin 5 are within a tolerance range.

[0028] The specific structure of the liftable pogo pins and the micro displacement sensors can refer to the existing structure, and will not be repeated here.

[0029] In the embodiment, a rotatable detection arm 6 is further arranged on one side of the base 1, a laser range finder 7 is mounted at the end of the detection arm 6, and the detection arm 6 and the laser range finder 7 are communicatively connected with the controller; after the pin 5 is placed in the pin slot 4, the detection arm 6 drives the laser range finder 7 to be rotatable to the bent part of the pin 5, the bent angle is measured from multiple angles, the laser range finder 7 transmits data to the controller for analysis and calculation, and if the angle exceeds a preset tolerance range, the controller determines that the pin is unqualified.

[0030] The specific structure of the rotatable detection arm 6 and the laser range finder 7 (see the attached Figure 1 and Figure 2 are simplified schematic diagrams) can refer to the existing structure, and will not be repeated here.

[0031] It should be noted that the controller is connected with a display screen (not shown in the figure), a laser beam emitted by the laser range finder 7 can accurately measure the distance from different positions of the pin 5 to the laser range finder 7, and then transmit signals to the controller, and a calculation and analysis program inside the controller calculates the pin bending angle through a trigonometric function. If the angle exceeds a preset tolerance range, the controller will determine that the pin is unqualified, and will give specific deviation values and positions on the display screen.

[0032] In summary, the controller collects data from the micro displacement sensors and the laser range finder 7. Through the built-in algorithm, it can quickly and accurately determine whether the pin is qualified, and display the detection result on the display screen in real time. Specifically, the qualified product is displayed with a green mark, the unqualified product is reminded with a red flashing light, and the unqualified items and deviation values can be listed in detail.

[0033] It should be understood that the orientation or positional relationship indicated by terms such as "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is merely intended to facilitate the description of the present application and simplify the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0035] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0037] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application. It should be covered within the protection scope of the present application.

Claims

1. A lithium battery long cover plate pin detection tool, comprising a base, characterized in that, The base is provided with: Cover plate slot, for long cover plate into; Two pin slots, respectively with the two ends of the cover plate slot perpendicular and communication, for long cover plate two ends of two pin into, two said pin slot spacing according to product tolerance is determined, when two pin into set interval of two said pin slot, two said pin between the distance conforms to the standard value, the angle error of the pin at 90° bending place conforms to the standard.

2. The lithium battery long cover plate pin detection tooling of claim 1, wherein, The two side walls of the pin slot are made of elastic material.

3. The lithium battery long cover plate pin detection tooling of claim 2, wherein, Also includes a controller, the bottom of the pin slot is provided with a plurality of liftable thimble, the thimble is connected with micro displacement sensor, the thimble and the micro displacement sensor are communicatively connected with the controller, when the pin is inserted into the pin slot, the thimble is pressed down by the pin to produce displacement, the micro displacement sensor receives signal to feedback data to the controller, for judging the thickness and overall flatness of the pin whether in the tolerance range.

4. The lithium battery long cover plate pin detection tooling of claim 3, wherein, The base is also provided with a rotatable detection arm, the end of the detection arm is installed with a laser range finder, the detection arm and the laser range finder are communicatively connected with the controller, when the pin is placed in the pin slot, the detection arm drives the laser range finder to rotate to the bending place of the pin, the bending angle is measured from multiple angles, the laser range finder transmits data to the controller for analysis and calculation, if the angle exceeds the preset tolerance range, the controller determines that the pin is unqualified.

5. The lithium battery long cover plate pin detection tooling of claim 4, wherein, The controller is connected with a display screen.

6. The lithium battery long cover plate pin detection tooling of claim 2, wherein, The elastic material is set as high strength rubber and metal composite material.

7. The lithium battery long cover plate pin detection tooling of claim 1, wherein, The connecting part of the cover plate slot and the pin slot is also provided with an avoidance slot.

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