Pole piece serpentine wave edge detector

Abstract

A pole piece serpentine wave edge detector comprises a base, a workbench, a linear guide, a first clamping mechanism, a second clamping mechanism, a tensioning mechanism, and a detection mechanism, wherein the detection mechanism is provided with a first detection head and a second detection head, and the workbench and the linear guide are both mounted on the base, the workbench passes through the first clamping mechanism in the horizontal direction, the bottom of the first clamping mechanism is mounted on the linear guide, the first clamping mechanism can be horizontally adjusted on the linear guide, after the adjustment is completed, the first clamping mechanism can be further fixed to the base, the second clamping mechanism is slid on the linear guide, the tensioning mechanism is connected to the second clamping mechanism, the workbench, the second clamping mechanism and the tensioning mechanism are distributed in sequence along the horizontal direction; the present invention accurately detects the parameters of the wave edge, provides a greater reference value for the quality evaluation of the pole piece, and has high detection efficiency and strong practicality.

Description

Technical Field

[0001] The present invention relates to a detection device, in particular to a pole piece serpentine wave edge detector. Background Art

[0002] During the battery manufacturing process, after the electrode sheets on the battery are cut, burrs extending to one side will form on the edge of the cutting position of the battery sheet. The burrs are distributed in a wavy shape, also known as wavy edges in the industry. The distribution of burrs on the battery sheet will have a significant adverse effect on the conductive performance, winding quality and other aspects of the battery electrode sheet. In the existing technology, the burrs on the electrode sheet are usually evaluated by visual inspection or measuring ruler. However, since the size of the burrs is relatively small, they are not easy to measure. Whether visual inspection or measuring ruler is used, the measurement results are large in error and inefficient, which brings troubles to manufacturers. Summary of the Invention

[0003] Based on this, it is necessary to provide a pole piece serpentine wave edge detector to address the shortcomings in the existing technology.

[0004] A pole piece serpentine wave edge detector is used to detect the parameters of the wave edges on both sides of the pole piece. It includes a base, a workbench, a linear guide, a first clamping mechanism, a second clamping mechanism, a tensioning mechanism, and a detection mechanism. The detection mechanism is provided with a first detection head and a second detection head. The workbench and the linear guide are both installed on the base. The workbench passes through the first clamping mechanism in the horizontal direction. The bottom of the first clamping mechanism is installed on the linear guide. The first clamping mechanism can be horizontally adjusted on the linear guide. After the adjustment is completed, the first clamping mechanism can be further fixed to the base. The second clamping mechanism is slidably arranged on the linear guide. The tensioning mechanism is connected to the second clamping mechanism. The workbench, the second clamping mechanism and the tensioning mechanism are distributed in sequence along the horizontal direction.

[0005] During detection, the first clamping mechanism and the second clamping mechanism clamp the two ends of the pole piece, the tensioning mechanism drives the second clamping mechanism away from the first clamping mechanism, so that the first clamping mechanism and the second clamping mechanism tighten the pole piece, and the X-axis positioning device drives the first detection head and the second detection head to adjust the position, so that different positions on the wave edge enter the detection area of ​​the first detection head and the second detection head, and the first detection head and the second detection head cooperate with each other to obtain the height and offset value corresponding to the cross-section at different positions of the wave edge.

[0006] In one embodiment, the first clamping mechanism includes two first slides, two first fixed feet respectively mounted on the two first slides, a first connecting plate mounted on the two first slides, a first positioning plate arranged above the first connecting plate, a plurality of first guide rods connecting the first connecting plate and the first positioning plate, a first pressure plate arranged between the first connecting plate and the first positioning plate and slidably mounted on the first guide rod, a first pressure sensor mounted on the first pressure plate, and a first pressing head movably mounted on the first positioning plate, the workbench passes through between the first pressure plate and the first connecting plate, the first slides are respectively mounted on two linear guide rails, and the first slides can slide along the extension direction of the linear guide rails to adjust the horizontal position of the first clamping mechanism.

[0007] In one embodiment, the first pressing head is arranged opposite to the first pressure sensor in the vertical direction, a first adjusting hole is provided in the middle of the first positioning plate, an internal thread is provided on the wall of the first adjusting hole, the first adjusting hole passes through the first positioning plate in the vertical direction, a first adjusting screw is provided on the first pressing head, an external thread is provided on the first adjusting screw, and the first adjusting screw is installed on the first adjusting hole. When the first pressing head is rotated, the external thread on the first adjusting screw cooperates with the internal thread of the first adjusting hole to drive the first adjusting screw to be pressed down or lifted up. During the downward pressing process of the first adjusting screw, it presses on the first pressure sensor and causes the first pressing plate to press the electrode sheet to be detected.

[0008] In one embodiment, an elongated positioning hole is provided on the first fixed foot, and fixing holes distributed side by side in the horizontal direction are provided on the base. After the first clamping mechanism is adjusted in the horizontal direction, the fixing part passes through the positioning hole and is installed and fixed with the fixing hole below the positioning hole, thereby limiting and fixing the entire first clamping mechanism.

[0009] In one embodiment, the second clamping mechanism includes two second slides, a second connecting plate installed on the two second slides, a second positioning plate provided above the second connecting plate, a plurality of second guide rods connecting the second connecting plate and the second positioning plate, a second pressure plate provided between the second connecting plate and the second positioning plate and slidably provided on the second guide rod, a second pressure sensor installed on the second pressure plate, a second pressing head movably installed on the second positioning plate, and a limit platform installed on the second connecting plate. The two second slides are respectively installed on two linear guide rails, and the second slides can slide along the extension direction of the linear guide rails to adjust the position of the second clamping mechanism in the horizontal direction; the limit platform and the second pressure plate are arranged relative to each other. When the second pressing head is rotated, the external thread and the internal thread cooperate to drive the second pressing head to press on the second pressure sensor, and the second pressure plate presses the electrode sheet to be tested on the limit platform.

[0010] In one embodiment, the tensioning mechanism includes a base plate, a bearing seat mounted on the base plate, a bearing mounted on the bearing seat, a driving rod mounted on the bearing, a slide slidably mounted on a linear guide rail, a driving seat mounted on the slide and mounted in cooperation with the driving rod, a tension sensor connecting the slide and the second clamping mechanism, and a driving device connected to the driving rod. The slide can slide on the linear guide rail, one end of the tension sensor is mounted on the slide, and the other end of the tension sensor is mounted on the second clamping mechanism. The tension sensor detects the magnitude of the tension of the tensioning mechanism on the second clamping mechanism.

[0011] In one embodiment, the driving rod is provided with an external thread at one end close to the driving seat, and the driving seat is provided with a through hole, the extension direction of the through hole is coaxial with the driving rod, and the hole wall of the through hole is provided with an internal thread. The driving rod passes through the through hole of the sliding seat, and the external thread on the driving rod is installed in cooperation with the internal thread of the through hole. The driving device drives the driving rod to rotate along the central axis of the bearing. During the rotation of the driving rod, the external thread on the driving rod cooperates with the internal thread of the through hole, thereby driving the second clamping mechanism to slide in the horizontal direction along the linear guide rail, so that the second clamping mechanism moves away from the first clamping mechanism, or moves closer to the first clamping mechanism.

[0012] In one embodiment, the driving device uses a motor to drive the driving rod to rotate. The driving device includes a vertical plate installed on the base plate, a driving motor installed on the vertical plate, a first rotating wheel installed on the driving motor, a second rotating wheel installed on the driving rod, and a belt connecting the first rotating wheel and the second rotating wheel. The driving motor drives the first rotating wheel to rotate. During the rotation of the first rotating wheel, the driving shaft is driven to rotate synchronously through the belt and the second rotating wheel.

[0013] In one embodiment, the detection mechanism also includes an X-axis positioning device, a first follower seat installed on the X-axis positioning device, a Y-axis positioning device installed on the first follower seat, a frame installed on the Y-axis positioning device, a Z-axis positioning device installed on the frame, and a second follower seat installed on the Z-axis positioning device, and the first detection head and the second detection head are installed on the second follower seat.

[0014] In one embodiment, the detection mechanism also includes a third follower seat and a bottom light source. The third follower seat is installed on a linear guide rail, the bottom light source is installed on the third follower seat, and the third follower seat is connected to the second follower seat. When the X-axis adjustment device drives the second follower seat to adjust the horizontal direction, the third follower seat shifts synchronously with the second follower seat.

[0015] The beneficial effect of the pole piece serpentine wave edge detector of the present invention is that: by setting a first clamping mechanism, a second clamping mechanism, a tensioning mechanism, and a detection mechanism, the detection mechanism includes an X-axis positioning device, a first detection head and a second detection head. During detection, the first clamping mechanism and the second clamping mechanism clamp the two ends of the pole piece, and the tensioning mechanism drives the second clamping mechanism away from the first clamping mechanism, so that the first clamping mechanism and the second clamping mechanism tighten the pole piece. The X-axis positioning device drives the first detection head and the second detection head to adjust the position so that different positions on the wave edge enter the detection area of ​​the first detection head and the second detection head. The first detection head and the second detection head cooperate with each other to obtain the height and offset value corresponding to the cross-section of different positions of the wave edge. The present invention accurately detects the parameters of the wave edge, provides a greater reference value for the quality evaluation of the pole piece, and has high detection efficiency and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the pole piece serpentine wave edge detector of the present invention;

[0017] Figure 2 、 Figure 3 Schematic diagram of the structure of the pole piece serpentine wave edge detector at different angles of the present invention, wherein the upper cover is not shown.

[0018] Figure 4 for Figure 2 Enlarged view of the middle circled portion A;

[0019] Figure 5 for Figure 3 Enlarged view of the middle circle B;

[0020] Figure 6 for Figure 3 Schematic diagram of the structure of the middle pole piece serpentine wave edge detector after removing the support plate and part of the shell of the workbench;

[0021] Figure 7 This is a schematic diagram of the baffle and limit switch in the present invention when used in conjunction with each other. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0028] See also Figures 1 to 7 The present invention provides a pole piece serpentine wave edge detector, which is used to detect the parameters of the wave edges on both sides of the pole piece 100. The wave edge parameters include the maximum height and offset position of the wave edges at different cross-sectional positions in the vertical direction. The pole piece serpentine wave edge detector includes a base 10, an upper cover 80, a workbench 30, a linear guide 20, a first clamping mechanism 40, a second clamping mechanism 50, a tensioning mechanism 60, and a detection mechanism 70. The upper cover 80 is installed on the base 10 and covers the outside of the workbench 30, the linear guide 20, the first clamping mechanism 40, the second clamping mechanism 50, the tensioning mechanism 60 and the detection mechanism 70. The workbench 30 and the linear guide 20 are both installed on the base 10. The workbench 30 The first clamping mechanism 40 passes through the horizontal direction, and the bottom of the first clamping mechanism 40 is installed on the linear guide rail 20. The first clamping mechanism 40 can be adjusted in the horizontal direction on the linear guide rail 20. After the adjustment is completed, the first clamping mechanism 40 can be further fixed on the base 10. The second clamping mechanism 50 is slidably arranged on the linear guide rail 20. The tensioning mechanism 60 is connected to the second clamping mechanism 50. The workbench 30, the second clamping mechanism 50 and the tensioning mechanism 60 are distributed in sequence along the horizontal direction.

[0029] The workbench 30 is provided with a support plate 31 which is a transparent glass plate. The electrode 100 to be tested is placed on the workbench 30. There are two linear guide rails 20, which are arranged at the front and rear sides of the workbench 30.

[0030] The first clamping mechanism 40 includes two first slides 41, two first fixed feet 48 respectively installed on the two first slides 41, a first connecting plate 42 installed on the two first slides 41, a first positioning plate 43 provided above the first connecting plate 42, a plurality of first guide rods 44 connecting the first connecting plate 42 and the first positioning plate 43, a first pressing plate 45 provided between the first connecting plate 42 and the first positioning plate 43 and slidably provided on the first guide rod 44, a first pressure sensor 47 installed on the first pressing plate 45, and a first pressing head 46 movably installed on the first positioning plate 43. The workbench 30 passes between the first pressing plate 45 and the first connecting plate 42.

[0031] The first pressing head 46 is arranged opposite to the first pressure sensor 47 in the vertical direction. A first adjusting hole is provided in the middle of the first positioning plate 43, and an internal thread is provided on the wall of the first adjusting hole. The first adjusting hole passes through the first positioning plate 43 in the vertical direction. A first adjusting screw 461 is provided on the first pressing head 46, and an external thread is provided on the first adjusting screw 461. The first adjusting screw 461 is installed on the first adjusting hole. When the first pressing head 46 is rotated, the external thread on the first adjusting screw 461 cooperates with the internal thread of the first adjusting hole to drive the first adjusting screw 461 to be pressed down or lifted up. During the downward pressing process of the first adjusting screw 461, it presses on the first pressure sensor 47, and causes the first pressing plate 45 to press the electrode sheet 100 to be tested.

[0032] The first slides 41 are mounted on the two linear guide rails 20, respectively. The first slides 41 can slide along the extension direction of the linear guide rails 20, thereby adjusting the horizontal position of the first clamping mechanism 40. Furthermore, the first fixing legs 48 are provided with elongated positioning holes 481, and the base 10 is provided with horizontally aligned fixing holes 11. After the first clamping mechanism 40 is horizontally adjusted, the fixing members pass through the positioning holes 481 and are secured to the fixing holes 11 below the positioning holes 481, thereby limiting and securing the entire first clamping mechanism 40.

[0033] The structure of the second clamping mechanism 50 is similar to that of the first clamping mechanism 40, with the main difference being that the second clamping mechanism 50 is not provided with a fixed foot for limiting and fixing the second clamping mechanism 50 as a whole, and a limiting platform is used to support the pole piece 100. Specifically, the second clamping mechanism 50 includes two second slides 51, a second connecting plate 52 installed on the two second slides 51, a second positioning plate 53 provided above the second connecting plate 52, a plurality of second guide rods 54 connecting the second connecting plate 52 and the second positioning plate 53, a second pressure plate 55 provided between the second connecting plate 52 and the second positioning plate 53 and slidably provided on the second guide rod 54, a second pressure sensor 57 installed on the second pressure plate 55, a second pressing head 56 movably installed on the second positioning plate 53, and a limiting platform 58 installed on the second connecting plate 52, and the limiting platform 58 is arranged opposite to the second pressure plate 55. When the second pressing head 56 is rotated, the external and internal threads engage, driving the second pressing head 56 to press against the second pressure sensor 57, and causing the second pressing plate 55 to press the electrode sheet 100 to be tested against the limit platform 58. The two second slides 51 are respectively mounted on the two linear guide rails 20. The second slides 51 can slide along the extension direction of the linear guide rails 20, thereby adjusting the horizontal position of the second pressing mechanism 50.

[0034] The tensioning mechanism 60 includes a base plate 61, a bearing seat 62 mounted on the base plate 61, a bearing mounted on the bearing seat 62, a driving rod 63 mounted on the bearing, a slide 64 slidably mounted on the linear guide 20, a driving seat 65 mounted on the slide 64 and mounted in conjunction with the driving rod 63, a tension sensor 66 connecting the slide 64 and the second clamping mechanism 50, and a driving device 67 connected to the driving rod 63. The slide 64 can slide on the linear guide 20, and the driving rod 63 is provided with an external thread at one end close to the driving seat 65. The driving seat 65 is provided with a through hole 651. The extension direction of 651 is coaxial with the drive rod 63. The wall of the through-hole 651 is provided with an internal thread. The drive rod 63 passes through the through-hole 651 of the slide 64. The external thread on the drive rod 63 cooperates with the internal thread of the through-hole 651. The drive device 67 drives the drive rod 63 to rotate along the central axis of the bearing. During the rotation process, the drive rod 63, through the external thread on the drive rod 63 and the internal thread of the through-hole 651, drives the second clamping mechanism 50 to slide horizontally along the linear guide 20, so that the second clamping mechanism 50 moves away from the first clamping mechanism 40, or moves closer to the first clamping mechanism 40. One end of the tension sensor 66 is mounted on the slide 64, and the other end of the tension sensor 66 is mounted on the second connecting plate 52 of the second clamping mechanism 50. The tension sensor 66 detects the tension applied by the tensioning mechanism 60 to the second clamping mechanism 50.

[0035] In this embodiment, the driving device 67 uses a motor to drive the driving rod 63 to rotate. The driving device 67 includes a vertical plate 671 installed on the base plate 61, a driving motor 672 installed on the vertical plate 671, a first rotating wheel installed on the driving motor 672, a second rotating wheel installed on the driving rod 63, and a belt connecting the first rotating wheel and the second rotating wheel. The driving motor 672 drives the first rotating wheel to rotate. During the rotation of the first rotating wheel, the driving shaft is driven to rotate synchronously through the belt and the second rotating wheel.

[0036] In addition, the present invention also includes a system controller and a display screen 90. The system controller controls the operation of the display screen 90 and the drive motor 672. The first pressure sensor 47, the second pressure sensor 57 and the tension sensor 66 feed back detection information to the system controller, and the display screen 90 displays the corresponding pressure value and tension value.

[0037] The detection mechanism 70 includes an X-axis positioning device 71, a first follower seat 72 mounted on the X-axis positioning device 71, a Y-axis positioning device 73 mounted on the first follower seat 72, a frame 74 mounted on the Y-axis positioning device 73, a Z-axis positioning device 75 mounted on the frame 74, a second follower seat 76 mounted on the Z-axis positioning device 75, a first detection head 77, a second detection head 78 and a top light source 79. The first detection head 77, the second detection head 78 and the top light source The light source 79 is installed on the second follower seat 76. The X-axis positioning device 71, the Y-axis positioning device 73 and the Z-axis positioning device 75 are all driven by screws. The X-axis positioning device 71, the Y-axis positioning device 73 and the Z-axis positioning device 75 respectively drive the second follower seat 76 to adjust in the horizontal left and right directions, the horizontal front and back directions, and the vertical directions. During the displacement of the second follower seat 76, the first detection head 77, the second detection head 78 and the top light source 79 are synchronously displaced.

[0038] In this embodiment, the first detection head 77 is a laser displacement sensor, the second detection head 78 is a CCD camera, and the top light source 79 is arranged around the bottom position of the second detection head 78. During detection, the densely distributed light spots of the laser displacement sensor hit the edge of the pole piece 100 to be detected. The light spots are distributed along the Y-axis direction (i.e., the front-to-back direction). Light spots at different positions hit the outer surface of a cross-sectional contour of the wave edge and detect distance information. The system controller module selects the maximum value based on the distance information of the same row of light spots hitting the wave edge. The second detection head 78 captures the image of the wave edge at that position in the vertical direction, and the system controller determines the front-to-back offset position of the wave edge at that point based on the image.

[0039] In addition, the detection mechanism 70 also includes a third follower 712, a bottom light source 713, a counterweight 710, and a pull rope 711. The pull rope 711 is suspended from the frame 74, and the ends of the pull rope 711 are respectively connected to the counterweight 710 and the second follower 76. The counterweight 710 can reduce the downward pressure of the second follower 76 on the Z-axis adjustment device 75, effectively preventing deformation of the threads on the lead screw, and increasing the service life of the lead screw on the Z-axis adjustment device 75. The third follower 712 is mounted on the linear guide 20, and the bottom light source 713 is mounted on the third follower 712. The third follower 712 is connected to the second follower 76. When the X-axis adjustment device 71 drives the second follower 76 to adjust the horizontal direction, the third follower 712 shifts synchronously with the second follower 76.

[0040] During testing, in order to ensure that the test results meet the requirements, the pressures of the first pressing plate 45 and the second pressing plate 55 on the electrode 100 are consistent and need to reach a set value. First, according to the length of the electrode 100 to be tested, the position of the first clamping mechanism 40 on the linear guide 20 is preliminarily adjusted, and the first clamping mechanism 40 is fixed to the base 10 by the fixing member. Then, one end of the electrode 100 to be tested is passed through the first connecting plate 42 and the first pressing plate 45, and the first pressing head 46 is rotated so that the first pressing plate 45 presses the electrode 100 until the pressure of the first pressing plate 45 on the electrode 100 reaches the set value according to the detection information of the first pressure sensor 47. Then, the other end of the electrode 100 to be tested is passed through the second connecting plate 52 and the second pressing plate 55, and the second pressing head 56 is rotated so that the second pressing plate 55 presses the electrode 100 until the pressure of the second pressing plate 55 on the electrode 100 reaches the set value according to the detection information of the second pressure sensor 57. The tension value is input to the system controller, and the drive device 67 of the tensioning mechanism 60 drives the second clamping mechanism 50 to slide horizontally along the linear guide 20, moving the second clamping mechanism 50 away from the first clamping mechanism 40. This occurs until the tension sensor 66 detects that the tension exerted by the tensioning mechanism 60 on the second clamping mechanism 50 reaches the pre-input tension value. At this point, the tensioning mechanism 60 stops driving the second clamping mechanism 50. The X-axis positioning device 71 drives the first and second detection heads 77 and 78 to slowly shift horizontally from their starting positions. The first and second detection heads 77 and 78 acquire the maximum height and offset values ​​of the cross-sections at different locations along the wave edge until the entire wave edge segment is detected.

[0041] In addition, in order to prevent the X-axis positioning device 71 from driving the first detection head 77 and the second detection head 78 to collide with the first clamping mechanism 40 during the displacement process, the present invention also includes a limit switch 120 and a baffle 110. The baffle 110 and the limit switch 120 are respectively installed on the first follower seat 72 and the first slide 6441 of the first clamping mechanism 40. When the baffle 110 extends into the detection position of the limit switch 120, at this time, the first follower seat 72 has reached the limit position, and the X-axis drive device 67 stops driving the first clamping mechanism 40 to move toward the first clamping mechanism 40.

[0042] The beneficial effect of the pole piece serpentine wave edge detector of the present invention is that: by setting a first clamping mechanism 40, a second clamping mechanism 50, a tensioning mechanism 60, and a detection mechanism 70, the detection mechanism 70 includes an X-axis positioning device 71, a first detection head 77, and a second detection head 78. During detection, the first clamping mechanism 40 and the second clamping mechanism 50 clamp the two ends of the pole piece 100, the tensioning mechanism 60 drives the second clamping mechanism 50 away from the first clamping mechanism 40, so that the first clamping mechanism 40 and the second clamping mechanism 50 tighten the pole piece 100, and the X-axis positioning device 71 drives the first detection head 77 and the second detection head 78 to adjust the position so that different positions on the wave edge enter the detection area of ​​the first detection head 77 and the second detection head 78. The first detection head 77 and the second detection head 78 cooperate with each other to obtain the maximum height and offset value corresponding to the cross section of different positions of the wave edge. The present invention accurately detects the parameters of the wave edge, provides a greater reference value for the quality evaluation of the pole piece 100, and has high detection efficiency and strong practicality.

[0043] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A pole piece serpentine wave edge detector, used to detect the parameters of the wave edges on both sides of the pole piece, characterized in that: It includes a base, a workbench, a linear guide rail, a first clamping mechanism, a second clamping mechanism, a tensioning mechanism, and a detection mechanism. The detection mechanism is provided with a first detection head and a second detection head. The workbench and the linear guide rail are both installed on the base. The workbench passes through the first clamping mechanism in the horizontal direction. The bottom of the first clamping mechanism is installed on the linear guide rail. The first clamping mechanism can be horizontally adjusted on the linear guide rail. After the adjustment is completed, the first clamping mechanism can be further fixed to the base. The second clamping mechanism is slidably arranged on the linear guide rail. The tensioning mechanism is connected to the second clamping mechanism. The workbench, the second clamping mechanism and the tensioning mechanism are distributed in sequence along the horizontal direction. The first pressing mechanism includes two first slides, two first fixed feet respectively mounted on the two first slides, a first connecting plate mounted on the two first slides, a first positioning plate provided above the first connecting plate, a plurality of first guide rods connecting the first connecting plate and the first positioning plate, a first pressing plate provided between the first connecting plate and the first positioning plate and slidably mounted on the first guide rod, a first pressure sensor mounted on the first pressing plate, and a first pressing head movably mounted on the first positioning plate, the workbench passes through between the first pressing plate and the first connecting plate, the first slides are respectively mounted on two linear guide rails, the first slides can slide along the extension direction of the linear guide rails, thereby adjusting the position of the first pressing mechanism in the horizontal direction; The first pressing head is arranged opposite to the first pressure sensor in the vertical direction, a first adjusting hole is provided in the middle of the first positioning plate, an internal thread is provided on the wall of the first adjusting hole, the first adjusting hole passes through the first positioning plate in the vertical direction, a first adjusting screw is provided on the first pressing head, an external thread is provided on the first adjusting screw, the first adjusting screw is installed on the first adjusting hole, when the first pressing head is rotated, the external thread on the first adjusting screw cooperates with the internal thread of the first adjusting hole, driving the first adjusting screw to be pressed down or lifted up, and during the downward pressing process of the first adjusting screw, it presses on the first pressure sensor and causes the first pressing plate to press the electrode sheet to be detected; The tensioning mechanism includes a base plate, a bearing seat mounted on the base plate, a bearing mounted on the bearing seat, a driving rod mounted on the bearing, a slide seat slidably mounted on the linear guide rail, a driving seat mounted on the slide seat and mounted in cooperation with the driving rod, a tension sensor connecting the slide seat and the second clamping mechanism, and a driving device connected to the driving rod, the slide seat can slide on the linear guide rail, one end of the tension sensor is mounted on the slide seat, and the other end of the tension sensor is mounted on the second clamping mechanism, and the tension sensor detects the magnitude of the tension of the tensioning mechanism on the second clamping mechanism; During detection, the first clamping mechanism and the second clamping mechanism clamp the two ends of the pole piece, the tensioning mechanism drives the second clamping mechanism away from the first clamping mechanism, so that the first clamping mechanism and the second clamping mechanism tighten the pole piece, and the X-axis positioning device drives the first detection head and the second detection head to adjust the position, so that different positions on the wave edge enter the detection area of ​​the first detection head and the second detection head, and the first detection head and the second detection head cooperate with each other to obtain the height and offset value corresponding to the cross-section at different positions of the wave edge.

2. The pole piece serpentine wave edge detector according to claim 1, characterized in that: An elongated positioning hole is provided on the first fixed foot, and fixing holes distributed side by side in the horizontal direction are provided on the base. After the first clamping mechanism is adjusted in the horizontal direction, the fixing part passes through the positioning hole and is installed and fixed with the fixing hole below the positioning hole, thereby limiting and fixing the entire first clamping mechanism.

3. The pole piece serpentine wave edge detector according to claim 1, characterized in that: The second pressing mechanism includes two second slides, a second connecting plate installed on the two second slides, a second positioning plate provided above the second connecting plate, a plurality of second guide rods connecting the second connecting plate and the second positioning plate, a second pressure plate provided between the second connecting plate and the second positioning plate and slidably provided on the second guide rod, a second pressure sensor installed on the second pressure plate, a second pressing head movably installed on the second positioning plate, and a limit platform installed on the second connecting plate. The two second slides are respectively installed on the two linear guide rails, and the second slide can slide along the extension direction of the linear guide rails to adjust the position of the second pressing mechanism in the horizontal direction; the limit platform and the second pressure plate are arranged opposite to each other. When the second pressing head is rotated, the external thread and the internal thread cooperate to drive the second pressing head to press on the second pressure sensor, and the second pressure plate presses the electrode sheet to be tested on the limit platform.

4. The pole piece serpentine wave edge detector according to claim 1, characterized in that: The driving rod is provided with an external thread at one end close to the driving seat, and the driving seat is provided with a through hole, the extension direction of the through hole is coaxial with the driving rod, and the hole wall of the through hole is provided with an internal thread. The driving rod passes through the through hole of the sliding seat, and the external thread on the driving rod is installed in cooperation with the internal thread of the through hole. The driving device drives the driving rod to rotate along the central axis of the bearing. During the rotation of the driving rod, the external thread on the driving rod cooperates with the internal thread of the through hole, thereby driving the second clamping mechanism to slide along the linear guide rail in the horizontal direction, so that the second clamping mechanism moves away from the first clamping mechanism, or moves closer to the first clamping mechanism.

5. The pole piece serpentine wave edge detector according to claim 1, characterized in that: The driving device uses a motor to drive the driving rod to rotate. The driving device includes a vertical plate installed on the base plate, a driving motor installed on the vertical plate, a first rotating wheel installed on the driving motor, a second rotating wheel installed on the driving rod, and a belt connecting the first rotating wheel and the second rotating wheel. The driving motor drives the first rotating wheel to rotate. During the rotation of the first rotating wheel, the driving shaft is driven to rotate synchronously through the belt and the second rotating wheel.

6. The pole piece serpentine wave edge detector according to claim 1, characterized in that: The detection mechanism also includes an X-axis positioning device, a first follower seat installed on the X-axis positioning device, a Y-axis positioning device installed on the first follower seat, a frame installed on the Y-axis positioning device, a Z-axis positioning device installed on the frame, and a second follower seat installed on the Z-axis positioning device. The first detection head and the second detection head are installed on the second follower seat.

7. The pole piece serpentine wave edge detector according to claim 6, characterized in that: The detection mechanism also includes a third follower seat and a bottom light source. The third follower seat is installed on a linear guide rail, the bottom light source is installed on the third follower seat, and the third follower seat is connected to the second follower seat. When the X-axis adjustment device drives the second follower seat to adjust the horizontal direction, the third follower seat shifts synchronously with the second follower seat.

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