Alignment mechanism for pole piece detection

Abstract

The utility model discloses an alignment mechanism for pole piece detection, include: base plate, and its both ends end face respectively fixedly be equipped with mounting seat, the first slider and the second slider of sliding setting in the mounting seat, the adjusting end of mounting seat is fixedly equipped with first drive assembly, and the output shaft of first drive assembly is connected and drives corresponding slider sliding, the first pivot assembly of fixedly equipped on the first slider and two second pivot assemblies of fixedly equipped on the second slider, be equipped with the alignment plate of center round hole and racecourse type through -hole, first pivot assembly is worn in center round hole, and two second pivot assemblies are respectively worn in the racecourse type through -hole that sets up parallel to the alignment plate length direction, the pole piece detection camera of fixedly equipped in the alignment plate middle part edge position, through the automatic control of first drive assembly and second drive assembly, has realized the automation of alignment process, has improved alignment efficiency and precision greatly.

Description

Technical Field

[0001] This utility model relates to the field of electrode testing equipment, and specifically to an alignment mechanism for electrode testing. Background Technology

[0002] With the widespread application of lithium-ion batteries in electric vehicles, energy storage systems, and other fields, the requirements for electrode quality testing during battery production are becoming increasingly stringent. As a core component of lithium-ion batteries, the quality of the electrode directly affects the battery's performance and safety. Electrode testing is a crucial step in ensuring battery quality during production, and the accuracy and efficiency of electrode testing directly impact production efficiency and product quality.

[0003] However, existing electrode inspection technologies still have some problems. First, existing electrode inspection structures require high inspection accuracy, and the alignment of the camera inspection surface and the electrode edge is mostly done manually, which is not only inefficient but also makes it difficult to guarantee the adjustment accuracy. Therefore, there is an urgent need for an electrode inspection mechanism that can achieve high-precision and high-efficiency alignment to improve the accuracy and efficiency of electrode inspection. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is to provide an alignment mechanism for electrode detection, so that the alignment and correction of the electrode by the alignment mechanism is more accurate and stable.

[0005] To address the aforementioned technical problems, this utility model provides an alignment mechanism for electrode detection, comprising:

[0006] A substrate, with mounting bases fixedly provided on its two end faces respectively;

[0007] A first slider and a second slider are slidably disposed on the mounting base. A first drive assembly is fixedly provided at the adjusting end of the mounting base. The output shaft of the first drive assembly is connected to and drives the corresponding slider to slide.

[0008] A first rotating shaft assembly fixed on the first slider, and two second rotating shaft assemblies fixed on the second slider;

[0009] An alignment plate is provided with a central circular hole and a racetrack-shaped through hole. The first rotating shaft assembly passes through the central circular hole, and two second rotating shaft assemblies pass through the racetrack-shaped through holes arranged parallel to the length direction of the alignment plate.

[0010] An electrode detection camera is fixed at the middle edge of the alignment plate.

[0011] Furthermore, both the first and second rotating shaft assemblies include:

[0012] A fixed seat mounted on the slider;

[0013] A bearing vertically mounted on the fixed base;

[0014] A bearing housing rotatably mounted on the bearing, wherein the bearing housing is clearance-fitted with the corresponding central circular hole or racetrack-shaped through hole;

[0015] A cover plate fixed to the bearing housing or bearing.

[0016] Furthermore, the first drive component is a linear motor, or a stepper motor or a servo motor, and the corresponding output shaft is a ball screw, which is screwed into the nut seat located in the slider.

[0017] Furthermore, a U-shaped groove is provided on the outer side of the substrate, and the electrode inspection camera is fixed in the groove by an L-shaped connector. The horizontal plate of the L-shaped connector has a first waist-shaped hole along the direction perpendicular to the length of the alignment plate, and the vertical plate of the L-shaped connector has a second waist-shaped hole along the vertical direction to adjust the height of the electrode inspection camera.

[0018] Furthermore, a height adjustment component is also fixedly connected between the L-shaped connector and the electrode inspection camera.

[0019] Furthermore, the height adjustment component includes:

[0020] A height adjustment bracket is fixed to the vertical plate of the L-shaped connector through the second waist-shaped hole, and a slide rail is fixed on the outer side of the height adjustment bracket along the vertical direction;

[0021] The second drive assembly is fixed to the adjustment end of the height adjustment frame;

[0022] A slider is slidably mounted on a slide rail, and the electrode detection camera is fixed on the slider.

[0023] Furthermore, the second drive component is a linear motor, or a stepper motor or a servo motor, and the corresponding output shaft is a ball screw, which is screwed into the nut seat provided in the sliding member.

[0024] Furthermore, a position sensor for detecting the position of the electrode is also fixed on the outer side of the L-shaped connector.

[0025] This utility model embodiment proposes an alignment mechanism for electrode inspection. By setting up a cooperative structure of a first rotating shaft assembly and a second rotating shaft assembly, the alignment plate can rotate around the bearing of the first rotating shaft assembly. Simultaneously, the bearing seat of the second rotating shaft assembly moves within a racetrack-shaped through-hole to achieve correction alignment, thereby achieving precise alignment between the camera inspection surface and the electrode edge. The two second rotating shaft assemblies ensure that the adjustment is performed within a single plane, and the cover plate further ensures that the adjustment is performed within a single plane, preventing the alignment plate from flipping or tipping over. The automated control of the first and second drive assemblies automates the alignment process, greatly improving alignment efficiency and accuracy, overcoming the shortcomings of low efficiency and insufficient accuracy of manual adjustment in the prior art. Furthermore, the L-shaped connector and height adjustment assembly allow for flexible adjustment of the position and height of the electrode inspection camera, further improving the accuracy and adaptability of the inspection. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the alignment mechanism according to an embodiment of the present utility model.

[0027] Figure 2 This is a partial structural schematic diagram of the alignment mechanism according to an embodiment of the present utility model.

[0028] Figure 3 This is a schematic diagram of the rotating shaft assembly structure of the alignment mechanism according to an embodiment of this utility model.

[0029] Figure 4 This is a schematic diagram of the L-shaped connector structure according to an embodiment of the present utility model.

[0030] Figure 5 yes Figure 4 Another angle of the L-shaped connector structure diagram

[0031] Figure 6 This is a schematic diagram of the height adjustment component structure according to an embodiment of the present invention.

[0032] Explanation of icon numbers Detailed Implementation

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] In this embodiment of the invention, directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0036] Please refer to Figures 1-5 Embodiment 1 of this utility model

[0037] An alignment mechanism for electrode inspection includes a substrate 1, a mounting base 2, a first slider 31, a second slider 32, a first drive assembly 4, a first rotating shaft assembly 51, a second rotating shaft assembly 52, an alignment plate 6, and an electrode inspection camera 7.

[0038] Mounting seats 2 are fixed to both ends of the substrate 1. The mounting seats 2 are made of metal and are fixed to both ends of the substrate 1 by bolts. The substrate 1 is made of aluminum alloy and has sufficient rigidity and stability to support the weight of the entire alignment mechanism.

[0039] The first slider 31 and the second slider 32 are slidably disposed on the mounting base 2. The first slider 31 is disposed on the mounting base 2 at one end of the substrate 1, and the second slider 32 is disposed on the mounting base 2 at the other end of the substrate 1. The mounting base 2 is provided with a slide rail that matches the slider, and the slider can slide smoothly along the slide rail. The slide rail is made of hard alloy material, and the surface is precision machined and hardened to ensure that the slider has good stability and accuracy during sliding.

[0040] The adjusting end of the mounting base 2 is fixedly equipped with a first drive assembly 4. The output shaft of the first drive assembly 4 is connected to and drives the corresponding slider to slide. The first drive assembly 4 can be a linear motor, a stepper motor, or a servo motor. When the first drive assembly 4 is a stepper motor or a servo motor, its output shaft is a ball screw, which is screwed into a nut seat located in the slider. The first drive assembly 4 receives commands from the control system and precisely controls the position and movement distance of the slider.

[0041] A first rotating shaft assembly 51 is fixedly mounted on the first slider 31, and two second rotating shaft assemblies 52 are fixedly mounted on the second slider 32. Both the first rotating shaft assembly 51 and the second rotating shaft assembly 52 include a fixed base 511, a bearing 512, a bearing seat 513, and a cover plate 514. The fixed base 511 is fixed to the slider, the bearing 512 is vertically mounted on the fixed base 511, the bearing seat 513 is rotatably sleeved on the bearing 512, and the cover plate 514 is fixed to either the bearing seat 513 or the bearing 512. The structure of one first rotating shaft assembly 51 and two second rotating shaft assemblies 52 defines an adjustment plane. The cover plate design prevents the alignment plate 6 from flipping or overturning during adjustment, ensuring that the alignment plate 6 is always adjusted within a single plane.

[0042] The alignment plate 6 has a central circular hole 6 and a racetrack-shaped through hole 62. A first rotating shaft assembly 51 passes through the central circular hole 6, and two second rotating shaft assemblies 52 pass through the racetrack-shaped through holes 62, which are parallel to the length of the alignment plate 6. Bearing seats 513 are clearance-fitted with the corresponding central circular hole 6 or racetrack-shaped through hole 62. The first rotating shaft assembly 51 acts as a rotation center, allowing the alignment plate 6 to rotate around the bearing 512 of the first rotating shaft assembly 51. The bearing seats 513 of the second rotating shaft assemblies 52 move within the racetrack-shaped through holes 62 to achieve alignment correction, i.e., alignment of the camera detection surface and the edge of the electrode. The two second rotating shaft assemblies 52 are provided to ensure that the adjustment is performed within a single plane, preventing the alignment plate 6 from tilting or twisting.

[0043] The electrode inspection camera 7 is fixed at the middle edge of the alignment plate 6. A U-shaped groove is provided on the outer side of the substrate 1, and the electrode inspection camera 7 is fixed in the groove by an L-shaped connector 8. The horizontal plate of the L-shaped connector 8 has a first oblong hole perpendicular to the length of the alignment plate 6, and the vertical plate of the L-shaped connector 8 has a second oblong hole in the vertical direction for adjusting the height of the electrode inspection camera 7. By adjusting the position of the L-shaped connector 8 in the first and second oblong holes, the horizontal position and height of the electrode inspection camera 7 can be adjusted to meet the inspection requirements of electrode sheets of different specifications.

[0044] A height adjustment component 9 is also fixedly connected between the L-shaped connector 8 and the electrode inspection camera 7. The height adjustment component 9 includes a height adjustment frame 91, a second drive component 92, and a slider 93. The height adjustment frame 91 is fixed to the vertical plate of the L-shaped connector 8 through a second oblong hole, and a slide rail is fixedly mounted on the outer side of the height adjustment frame 91 along the vertical direction. The second drive component 92 is fixed to the adjustment end of the height adjustment frame 91. The slider 93 is slidably mounted on the slide rail, and the electrode inspection camera 7 is fixedly mounted on the slider 93. The second drive component 92 can be a linear motor, a stepper motor, or a servo motor. When the second drive component 92 is a stepper motor or a servo motor, its output shaft is a ball screw, which is screwed into a nut seat located in the slider 93. By controlling the second drive component 92, the height position of the electrode inspection camera 7 can be precisely adjusted.

[0045] A position sensor for detecting the electrode's position is also fixed to the outer side of the L-shaped connector 8. The position sensor operates based on the principle of infrared beam transmission and works in conjunction with the alignment structure and camera to determine whether the electrode is aligned. When the electrode enters the detection area, the position sensor sends a signal, triggering the electrode detection camera 7 to take a picture. Simultaneously, the alignment mechanism automatically adjusts based on the detection result to ensure the electrode is in the correct detection position.

[0046] In practical use, the alignment mechanism is first installed on the electrode production line, and the position of the substrate 1 is adjusted to be parallel to the electrode conveying direction. Then, the positions of the first slider 31 and the second slider 32 are adjusted by the first drive assembly 4, so that the first rotating shaft assembly 51 and the second rotating shaft assembly 52 are aligned with the central circular hole 6 and the racetrack-shaped through hole 62 on the alignment plate 6. Next, the initial position of the electrode inspection camera 7 is adjusted by the first and second oblong holes on the L-shaped connector 8, so that it is roughly aligned with the inspection area of ​​the electrode. Finally, the height of the electrode inspection camera 7 is precisely adjusted by the height adjustment assembly 9 to ensure that the camera can clearly capture the surface of the electrode.

[0047] When the electrode sheet is transported to the detection area, the position sensor detects its presence and sends a signal to trigger the electrode sheet detection camera 7 to take a picture. The image captured by the camera is transmitted to the image processing system, which analyzes the position and orientation of the electrode sheet. If the electrode sheet is found to be incorrectly positioned, the system issues a command to adjust the positions of the first slider 31 and the second slider 32 via the first drive assembly 4, causing the alignment plate 6 to rotate around the first rotating shaft assembly 51. Simultaneously, the second rotating shaft assembly 52 moves within the racetrack-shaped through hole 62, achieving precise positioning of the alignment plate 6. In this way, it can be ensured that the electrode sheet detection camera 7 is always aligned with the correct position of the electrode sheet, improving the accuracy and efficiency of the detection.

[0048] The alignment mechanism can be adjusted automatically or manually. In automatic mode, the system automatically adjusts the position of the alignment plate 6 based on the image processing results; in manual mode, the operator can manually adjust the first drive assembly 4 and the second drive assembly 92 via the control panel to achieve precise positioning of the alignment plate 6.

[0049] The alignment mechanism in this embodiment has a simple structure and precise adjustment, and can adapt to the inspection needs of electrodes of different specifications. Through the cooperation of the first rotating shaft assembly 51 and the second rotating shaft assembly 52, the rotation and translation adjustment of the alignment plate 6 are realized, ensuring that the electrode inspection camera 7 is always aligned with the correct position of the electrode. Simultaneously, through the height adjustment assembly 9 and the oblong hole on the L-shaped connector 8, precise adjustment of the electrode inspection camera 7 in three directions is achieved, meeting the needs of different inspection scenarios. Example 2

[0050] Based on Embodiment 1, the first drive component 4 in this embodiment is a linear motor. Linear motors are characterized by fast response speed and high positioning accuracy, enabling rapid and precise movement of the slider. The stator of the linear motor is fixed on the mounting base 2, and the mover is connected to the slider. By controlling the magnitude and direction of the current in the linear motor, the position and speed of the slider can be precisely controlled. Example 3

[0051] Based on Embodiment 1, the first drive component 4 in this embodiment is a stepper motor, whose output shaft is a ball screw, which is screwed into a nut seat located in the slider. The stepper motor drives the ball screw to rotate, causing the slider to move smoothly on the slide rail. Each step of the stepper motor allows the slider to move at the micrometer level, meeting the precise adjustment requirements of the alignment mechanism. Example 4

[0052] Based on Embodiment 1, the first drive component 4 in this embodiment is a servo motor, whose output shaft is a ball screw, which is screwed into the nut seat located in the slider. The servo motor is equipped with an encoder, which can realize closed-loop control to ensure the positional accuracy and repeatability of the slider. By driving the ball screw to rotate through the servo motor, the slider moves smoothly on the slide rail, achieving precise positioning of the alignment plate 6. Example 5

[0053] Based on Embodiment 1, the second drive component 92 in this embodiment is a linear motor. The stator of the linear motor is fixed on the height adjustment frame 91, and the mover is connected to the slider 93. By controlling the magnitude and direction of the current of the linear motor, the position and moving speed of the slider 93 can be precisely controlled, thereby adjusting the height of the electrode detection camera 7. Example 6

[0054] Based on Embodiment 1, the second drive component 92 in this embodiment is a stepper motor, whose output shaft is a ball screw, which is screwed into a nut seat located in the slider. The stepper motor drives the ball screw to rotate, causing the slider 93 to move smoothly on the slide rail, thus achieving precise adjustment of the height of the electrode inspection camera 7. Each step of the stepper motor allows the slider 93 to move at the micrometer level, meeting the requirements for high-precision adjustment. Example 7

[0055] Based on Embodiment 1, the second drive component 92 in this embodiment is a servo motor, whose output shaft is a ball screw, which is screwed into the nut seat located in the slider. The servo motor is equipped with an encoder, which can realize closed-loop control to ensure the positional accuracy and repeatability of the slider 93. By driving the ball screw to rotate through the servo motor, the slider 93 moves smoothly on the slide rail, realizing the precise adjustment of the height of the electrode inspection camera 7. Example 8

[0056] Based on Embodiment 1, in this embodiment, a position sensor for detecting the position of the electrode is fixedly mounted on the outer side of the L-shaped connector 8. The position sensor adopts the principle of infrared beam transmission and includes a transmitter and a receiver. The transmitter emits an infrared beam, and when the electrode passes by, the infrared beam is blocked. The receiver detects the change in light intensity and outputs a signal indicating that the electrode has reached the detection position.

[0057] The position sensor works in conjunction with the alignment structure and camera to determine whether the electrode is aligned. When the position sensor detects that the electrode has reached the designated position, it triggers the electrode detection camera 7 to take a picture. At the same time, the system determines whether the electrode is aligned based on the picture result. If it is not aligned, the position of the alignment plate 6 is adjusted by the first drive component 4 and the second drive component 92 until the electrode is in the correct detection position.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An alignment mechanism for electrode sheet detection, characterized by, include: A substrate (1) has mounting bases (2) fixedly provided on its two end faces respectively; A first slider (31) and a second slider (32) are slidably disposed on the mounting base (2). The adjusting end of the mounting base (2) is fixedly provided with a first drive assembly (4). The output shaft of the first drive assembly (4) is connected to and drives the corresponding slider to slide. A first rotating shaft assembly (51) fixed on the first slider (31), and two second rotating shaft assemblies (52) fixed on the second slider (32). An alignment plate (6) is provided with a central circular hole (61) and a runway-shaped through hole (62). The first rotating shaft assembly (51) passes through the central circular hole (61), and two second rotating shaft assemblies (52) pass through the runway-shaped through holes (62) arranged parallel to the length direction of the alignment plate (6). An electrode detection camera (7) is fixed at the middle edge of the alignment plate (6).

2. The alignment mechanism for pole piece detection of claim 1, wherein, Both the first rotating shaft assembly (51) and the second rotating shaft assembly (52) include: A fixed seat (511) is fixed on the slider. A bearing (512) is vertically mounted on the fixed base (511); The bearing seat (513) is rotatably sleeved on the bearing (512), and the bearing seat (513) is clearance-fitted with the corresponding central circular hole (61) or racetrack-shaped through hole (62); A cover plate (514) fixed to the bearing housing (513) or the bearing (512).

3. The alignment mechanism for pole piece detection of claim 1, wherein, The first drive component (4) is a linear motor, or the first drive component (4) is a stepper motor or a servo motor, and the corresponding output shaft is a ball screw, which is screwed into the nut seat of the slider.

4. The alignment mechanism for pole piece detection of claim 1, wherein, A U-shaped groove is provided on the outer side of the substrate (1), and the electrode detection camera (7) is fixed in the groove by an L-shaped connector (8). The horizontal plate of the L-shaped connector (8) has a first waist-shaped hole along the length direction perpendicular to the alignment plate (6), and the vertical plate of the L-shaped connector (8) has a second waist-shaped hole along the vertical direction for adjusting the height of the electrode detection camera (7).

5. The alignment mechanism for pole piece detection of claim 4, wherein, A height adjustment component (9) is also fixedly connected between the L-shaped connector (8) and the electrode inspection camera (7).

6. The alignment mechanism for pole piece detection of claim 5, wherein, The height adjustment component (9) includes: A height adjustment bracket (91) is fixed to the vertical plate of the L-shaped connector (8) through the second waist-shaped hole. The outer side of the height adjustment bracket (91) is fixed with a slide rail in the vertical direction. The second drive assembly (92) is fixed to the adjustment end of the height adjustment frame (91). A slider (93) is slidably disposed on the slide rail, and the electrode detection camera (7) is fixedly disposed on the slider (93).

7. The alignment mechanism for pole piece detection of claim 6, wherein, The second drive component (92) is a linear motor, or the second drive component (92) is a stepper motor or a servo motor, and the corresponding output shaft is a ball screw, which is screwed into the nut seat provided in the sliding member (93).

8. The alignment mechanism for electrode inspection according to any one of claims 4 to 7, characterized in that, The L-shaped connector (8) is also fixed with a position sensor for detecting the position of the electrode.

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