Detector for snake-shaped wavy edge of pole piece

Abstract

A pole piece snakelike wavy edge detector comprises a base, a workbench, a linear guide rail, a first pressing mechanism, a second pressing 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 penetrates through the first pressing mechanism in the horizontal direction, and the linear guide rail penetrates through the second pressing mechanism in the horizontal direction. The bottom of the first pressing mechanism is installed on the linear guide rail, the first pressing mechanism can be adjusted on the linear guide rail in the horizontal direction, after the first pressing mechanism is adjusted, the first pressing mechanism can be further fixed to the base, the second pressing mechanism is arranged on the linear guide rail in a sliding mode, and the tensioning mechanism is connected with the second pressing mechanism. The workbench, the second pressing mechanism and the tensioning mechanism are sequentially distributed in the horizontal direction. According to the method, the parameter detection of the wavy edge is accurate, a relatively large reference value is provided for the quality evaluation of the pole piece, the detection efficiency is high, and the practicability is high.

Description

Technical Field

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

[0002] During the manufacturing process of the battery, after the electrode sheet on the battery is cut, burrs extending to one side will be formed on the edge of the cutting position of the battery sheet. The burrs are distributed in a wave shape, which is also called wavy edge in the industry. The distribution of burrs on the battery sheet will have a greater adverse effect on the conductive performance, winding quality and other aspects of the battery electrode sheet. In the prior art, 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 and difficult to measure, whether it is visual inspection or measuring ruler, the measurement result has large errors and low efficiency, 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 deficiencies in the prior art.

[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, which 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 adjusted in the horizontal direction on the linear guide rail. After the adjustment is completed, the first clamping mechanism can be further fixed on 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 sequentially distributed in 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 of the embodiments, 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 of the embodiments, 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 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 of the embodiments, 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 of the embodiments, the second clamping mechanism includes two second slides, a second connecting plate mounted on the two second slides, a second positioning plate arranged 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 arranged between the second connecting plate and the second positioning plate and slidably arranged on the second guide rod, a second pressure sensor mounted on the second pressure plate, a second pressing head movably mounted on the second positioning plate, and a limit platform mounted on the second connecting plate. The two second slides are respectively mounted 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 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 detected on the limit platform.

[0010] In one of the embodiments, the tensioning mechanism includes a base plate, a bearing seat installed on the base plate, a bearing installed on the bearing seat, a driving rod installed on the bearing, a slide seat slidably installed on a linear guide rail, a driving seat installed on the slide seat and installed 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 installed on the slide seat, and the other end of the tension sensor is installed 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 of the embodiments, an external thread is provided at one end of the driving rod close to the driving seat, and a through hole is provided on the driving seat. The extension direction of the through hole is coaxial with the driving rod, and an internal thread is provided on the hole wall of the through hole. 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.

[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 It is a structural schematic diagram of a pole piece serpentine wave edge detector of the present invention;

[0017] Figure 2 , Figure 3 It is a 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 It is a schematic diagram of the blocking piece and the limit switch in the present invention when used in combination. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by 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 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, and do not indicate or imply that the referred device or element 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] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in 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 a central 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 a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[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, and the electrode piece 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 arranged 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 arranged between the first connecting plate 42 and the first positioning plate 43 and slidably arranged 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, and the workbench 30 passes through 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, 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, 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, driving the first adjusting screw 461 to be pressed down or lifted up, when the first adjusting screw 461 is pressed down, it presses on the first pressure sensor 47, and makes the first pressing plate 45 press the electrode sheet 100 to be detected.

[0032] The first slide 41 is respectively installed on the two linear guide rails 20, and the first slide 41 can slide along the extension direction of the linear guide rails 20, thereby adjusting the horizontal position of the first clamping mechanism 40. In addition, the first fixed foot 48 is provided with an elongated positioning hole 481, and the base 10 is provided with fixing holes 11 distributed side by side in the horizontal direction. After the first clamping mechanism 40 is adjusted in the horizontal direction, the fixing member passes through the positioning hole 481 and is fixed to the fixing hole 11 below the positioning hole 481, thereby limiting and fixing 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 not 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 pressing 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 pressing 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, wherein the limiting platform 58 and the second pressing plate 55 are arranged opposite to each other. When the second pressing head 56 is rotated, the outer thread cooperates with the inner thread to drive the second pressing head 56 to press on the second pressure sensor 57, and the second pressing plate 55 presses the electrode sheet 100 to be detected on the limit table 58. The two second slides 51 are respectively installed on the two linear guide rails 20, and the second slides 51 can slide along the extension direction of the linear guide rails 20, thereby adjusting the position of the second clamping mechanism 50 in the horizontal direction.

[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 seat 64 slidably mounted on the linear guide rail 20, a driving seat 65 mounted on the slide seat 64 and mounted in cooperation with the driving rod 63, a tension sensor 66 connecting the slide seat 64 and the second clamping mechanism 50, and a driving device 67 connected to the driving rod 63. The slide seat 64 can slide on the linear guide rail 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 driving rod 63, and the hole wall of the through hole 651 is provided with an internal thread. The driving rod 63 passes through the through hole 651 of the slide 64, and the external thread on the driving rod 63 is installed in cooperation with the internal thread of the through hole 651. The driving device 67 drives the driving rod 63 to rotate along the central axis of the bearing. During the rotation process, the driving rod 63 drives the second clamping mechanism 50 to slide along the linear guide rail 20 in the horizontal direction through the external thread on the driving rod 63 and the internal thread of the through hole 651, so that the second clamping mechanism 50 is moved away from the first clamping mechanism 40, or moved closer to the first clamping mechanism 40. One end of the tension sensor 66 is installed on the slide 64, and the other end of the tension sensor 66 is installed on the second connecting plate 52 of the second clamping mechanism 50. The tension sensor 66 detects the tension of the tensioning mechanism 60 on 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 display screen 90 and the drive motor 672 to work. The first pressure sensor 47, the second pressure sensor 57 and the tension sensor 66 feed back the 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 installed on the X-axis positioning device 71, a Y-axis positioning device 73 installed on the first follower seat 72, a frame 74 installed on the Y-axis positioning device 73, a Z-axis positioning device 75 installed on the frame 74, a second follower seat 76 installed on the Z-axis positioning device 75, a first detection head 77, a second detection head 78 and a top light source 79. The light source 79 is installed on the second follower seat 76. The X-axis adjustment device 71, the Y-axis adjustment device 73 and the Z-axis adjustment device 75 are all driven by screws. The X-axis adjustment device 71, the Y-axis adjustment device 73 and the Z-axis adjustment device 75 respectively drive the second follower seat 76 to adjust in the horizontal left and right direction, the horizontal front and back direction, and the vertical direction. 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, and the light spots are distributed along the Y-axis direction (i.e., the front-to-back direction). The light spots at different positions hit the outer surface of a cross-sectional contour of the wave edge and detect the 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 this position in the vertical direction, and the system controller determines the size of the front-to-back offset position of the wave edge at this point based on the image.

[0039] In addition, the detection mechanism 70 also includes a third follower seat 712, a bottom light source 713, a counterweight 710 and a pull rope 711. The pull rope 711 is suspended on the frame 74. The two ends of the pull rope 711 are respectively connected to the counterweight 710 and the second follower seat 76. The counterweight 710 can reduce the downward pressure of the second follower seat 76 on the Z-axis positioning device 75, effectively prevent the thread deformation on the screw rod, and improve the service life of the screw rod on the Z-axis positioning device 75. The third follower seat 712 is installed on the linear guide rail 20, the bottom light source 713 is installed on the third follower seat 712, and the third follower seat 712 is connected to the second follower seat 76. When the X-axis positioning device 71 drives the second follower seat 76 to adjust the horizontal direction, the third follower seat 712 is synchronously shifted with the second follower seat 76.

[0040] During the test, in order to ensure that the test result meets the requirements, the pressure of the first pressing plate 45 and the second pressing plate 55 on the pole piece 100 is consistent and needs to reach the set value. First, according to the length of the pole piece 100 to be tested, the position of the first clamping mechanism 40 on the linear guide rail 20 is preliminarily adjusted, and the fixing member fixes the first clamping mechanism 40 on the base 10. Then, one end of the pole piece 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 to make the first pressing plate 45 press the pole piece 100, according to the detection information of the first pressure sensor 47, until the pressure of the first pressing plate 45 on the pole piece 100 reaches the set value, and then the other end of the pole piece 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 to make the second pressing plate 55 press the pole piece 100, according to the detection information of the second pressure sensor 57, until the pressure of the second pressing plate 55 on the pole piece 100 reaches the set value. The tension value is input to the system controller, and the driving device 67 of the tensioning mechanism 60 drives the second clamping mechanism 50 to slide along the linear guide rail 20 in the horizontal direction, so that the second clamping mechanism 50 is away from the first clamping mechanism 40, until the tension sensor 66 detects that the tension of the tensioning mechanism 60 on the second clamping mechanism 50 reaches the pre-input tension value, and the tensioning mechanism 60 stops driving the second clamping mechanism 50 to shift. The X-axis positioning device 71 drives the first detection head 77 and the second detection head 78 to slowly shift in the horizontal direction from the starting position, and the first detection head 77 and the second detection head 78 obtain the maximum height value and offset value of the cross section at different positions of the wave edge until the detection of the entire wave edge is completed.

[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 seat 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 the first clamping mechanism 40, the second clamping mechanism 50, the tensioning mechanism 60, and the 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 the 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, and 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-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached 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 adjusted in the horizontal direction on the linear guide rail. After the adjustment is completed, the first clamping mechanism can be further fixed on 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 sequentially distributed in the horizontal direction. 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: The first clamping mechanism includes two first slides, two first fixed feet respectively installed on the two first slides, a first connecting plate installed 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 arranged on the first guide rod, a first pressure sensor installed on the first pressure plate, and a first pressing head movably installed on the first positioning plate. The workbench passes through between the first pressure plate and the first connecting plate. The first slides are respectively installed on two linear guide rails. The first slides can slide along the extension direction of the linear guide rails to adjust the horizontal position of the first clamping mechanism.

3. The pole piece serpentine wave edge detector according to claim 2, characterized in that: 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.

4. The pole piece serpentine wave edge detector according to claim 2, characterized in that: The first fixed foot is provided with an elongated positioning hole, and the base is provided with fixing holes distributed side by side in the horizontal direction. 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.

5. The pole piece serpentine wave edge detector according to claim 1, characterized in that: The second clamping mechanism includes two second slides, a second connecting plate installed on the two second slides, a second positioning plate arranged above the second connecting plate, a plurality of second guide rods connecting the second connecting plate and the second positioning plate, a second pressing plate arranged between the second connecting plate and the second positioning plate and slidably arranged on the second guide rod, a second pressure sensor installed on the second pressing 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 pressing 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 pressing plate presses the electrode sheet to be detected on the limit platform.

6. The pole piece serpentine wave edge detector according to claim 1, characterized in that: The tensioning mechanism includes a base plate, a bearing seat installed on the base plate, a bearing installed on the bearing seat, a driving rod installed on the bearing, a slide seat slidably installed on the linear guide rail, a driving seat installed on the slide seat and installed 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 installed on the slide seat, and the other end of the tension sensor is installed on the second clamping mechanism. The tension sensor detects the tension of the tension mechanism on the second clamping mechanism.

7. The pole piece serpentine wave edge detector according to claim 6, 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, and 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.

8. The pole piece serpentine wave edge detector according to claim 6, 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.

9. 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.

10. The pole piece serpentine wave edge detector according to claim 8, characterized in that: The detection mechanism also includes a third follower seat and a bottom light source. The third follower seat is installed on the 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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