A pole piece thickness detection device

Abstract

The present invention relates to the field of intelligent detection technology for powder molding, and provides a device for detecting the thickness of a pole piece, including a large base plate, a pole piece turnover mechanism, a positioning mechanism, a thickness measuring mechanism, and a turnover material waiting structure; the positioning mechanism, the thickness measuring mechanism, and the turnover material waiting structure are fixedly connected in sequence along the length direction on the upper surface of the large base plate, wherein the thickness measuring mechanism is located between the positioning mechanism and the turnover material waiting structure; the pole piece turnover mechanism is arranged in front of the right side of the turnover material waiting structure and is fixedly connected to the upper surface of the large base plate. The present invention uses a through-beam laser displacement sensor to automatically detect the thickness of multiple points in the circumference and diameter directions of the pole piece; at the same time, the mechanism automatically performs dust removal on the test bench, which can effectively improve the detection efficiency, detection accuracy, and reliability of the detection results.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent detection of powder forming, and in particular relates to a pole piece thickness detection device. Background Art

[0002] Powder pressed pole pieces are widely used in various types of power batteries due to their unique process and performance advantages. The thickness of powder pressed pole pieces is an important parameter to measure the quality of the product. At present, it is mainly carried out by manual inspection with a manual inspection tool, which has defects such as high labor intensity, low inspection accuracy and low reliability. The Chinese utility model patent with application number 2018205192406 discloses a detection device for a heating plate, in which the thickness detection adopts a single-sided laser displacement sensor to detect the thickness of the pole piece on the platform, realizes automatic thickness measurement and shortens the product inspection time. The Chinese utility model patent with application number 2012207300183 discloses a lithium-ion battery pole piece thickness measurement device, which can effectively detect the thickness of the pole piece during the production process. The detection process does not damage the pole piece and improves production efficiency.

[0003] However, the inventor of the present invention found that the existing technology has the following problems: when the single-sided laser displacement sensor measures the thickness, the direct detection error is large when the pole piece is slightly deformed or there is residue of powder pole piece falling on the surface of the test bench; and the infrared projection thickness measurement is affected by the density of the test material, and has poor stability for powder-formed pole pieces. In addition, the existing technology performs single-point detection on the pole piece, and cannot effectively evaluate the thickness parameters of the pole piece at various positions for the powder-formed pole piece, so it needs to be improved. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a pole piece thickness detection device for thickness detection of powder-formed pole pieces; it can realize multi-position thickness measurement and automatic dust removal of the test bench; the detection process is stable and reliable, and the detection efficiency can be greatly improved through automated detection methods.

[0005] The specific technical solution adopted by the present invention is:

[0006] The present invention provides a device for detecting the thickness of an electrode piece, comprising a large base plate, an electrode piece turnover mechanism, a positioning mechanism, a thickness measuring mechanism and a turnover material waiting structure; the positioning mechanism, the thickness measuring mechanism and the turnover material waiting structure are sequentially arranged on the upper surface of the large base plate along the length direction, wherein the thickness measuring mechanism is located between the positioning mechanism and the turnover material waiting structure; the electrode piece turnover mechanism is arranged at the right front of the turnover material waiting structure and is fixedly connected to the upper surface of the large base plate; the thickness measuring mechanism comprises a thickness measuring component, a moving mechanism and a rotating mechanism; the bottom surface of the moving mechanism is fixed to the upper surface of the large base plate; the rotating mechanism is slidably connected to the moving mechanism; the thickness measuring component is arranged on the side of the moving mechanism and is fixedly connected to the upper surface of the large base plate ; The thickness measuring component includes a fixing component, a slide rail and a sensor component; the fixing component includes three parts: a bottom panel, a vertical plate and a reinforcing rib, the bottom panel and the vertical plate are at 90 degrees, and the bottom panel is fixedly connected to the upper surface of the large bottom panel; a slide rail is provided on the vertical plate; a total of two sensor components are symmetrically connected to the slide rail for sliding; the sensor component includes a mounting block, a locking screw, a transverse fixing plate and a laser displacement sensor; the mounting block is slidably connected to the slide rail; one end of the transverse fixing plate is fixedly connected to the side of the mounting block, and the other end is fixedly connected to the back with a laser displacement sensor; the light-emitting axes of the two laser displacement sensors coincide; the locking screw is fixed to the side of the mounting block.

[0007] Furthermore, the pole piece turnover mechanism includes a fixed base, a manipulator, and an end actuator; the bottom surface of the fixed base is fixedly connected to the upper surface of the large base plate, and the opposite top surface is fixedly connected to the manipulator; the end actuator is fixedly connected to the end of the manipulator.

[0008] Furthermore, the end actuator includes a flange seat, a connecting plate, a film picking mechanism and a dust removal mechanism; the flange seat is "convex" in shape, one end of which is fixedly connected to the end of the manipulator, and the other end of the side is fixedly connected to the middle position of the back of the connecting plate, and the film picking mechanism and the dust removal mechanism are respectively provided at both ends of the front side of the connecting plate.

[0009] Furthermore, the positioning mechanism includes a photographing component and a positioning platform; the photographing component is arranged directly above the positioning platform; the photographing component includes a fixing seat, a supporting square tube, a flange support, an adapter plate and a camera; the supporting square tube is a rectangular parallelepiped, and the fixing seat and the flange support pass through the supporting square tube and are fixedly connected by bolts; the adapter plate is "L"-shaped, and its short side is fixedly connected to the side of the flange support, and the long side bottom is fixedly connected to the camera; the positioning platform includes a mounting seat, a pillar and a supporting circular plate; the supporting circular plate is located at the top, and its axis coincides with the axis of the camera; the lower part of the supporting circular plate is fixedly connected to the pillar; the lower end of the pillar passes through the mounting seat and is fixedly connected; the bottom surface of the mounting seat is fixed to the upper surface of the large base plate.

[0010] Furthermore, the moving mechanism includes a fixed plate, a motor flange, a servo motor, a screw, a screw guide sleeve, a linear guide rail, a slider, a mounting bar and a first slot-type photoelectric sensor; the motor flange is fixedly connected to the side of the short side of the fixed plate; the servo motor is fixedly connected to the side of the motor flange; the output shaft of the servo motor is fixedly connected to the screw through a coupling; the screw guide sleeve is rotatably connected to the screw, and both ends of the screw are rotatably connected to the first bearing seat and the second bearing seat; the linear guide rails are symmetrically arranged on both sides of the upper surface of the fixed plate; the slider is slidably connected to the linear guide rail; the mounting bar is fixedly connected to the side of the long side of the fixed plate, and three first slot-type photoelectric sensors are respectively fixedly connected to the mounting bar.

[0011] Furthermore, the rotating mechanism includes a moving plate, a side plate, a fixed mounting plate, a rotating motor, a driving gear, a hollow driven gear, a hollow gear connecting plate, a first follower bearing, a support plate, a first shading plate, a second slot-type photoelectric sensor, and a second shading plate; the moving plate is "concave" shaped, the bottom surface is slidably connected to the slider, and the side surface at the middle position of the concave shape is fixedly connected to the side surface of the screw guide sleeve; a total of two side plates are symmetrically fixed on both sides of the upper surface of the moving plate; the fixed mounting plate is overlapped and fixed on the upper surface of the side plate; the rotating motor is fixedly connected to the lower surface of the fixed mounting plate; the output shaft of the rotating motor The through hole passing through the fixed mounting plate is fixedly connected to the driving gear; the hollow driven gear is rotationally matched with the driving gear; the lower surface of the hollow driven gear is fixedly connected with the hollow gear connecting plate; the first follower bearing is fixed on the upper surface of the fixed mounting plate, and is evenly distributed around the hollow gear connecting plate and rollingly matched with the hollow gear connecting plate; the upper surface of the hollow driven gear is provided with a support plate; the first shading sheet is clamped and fixed in the groove on the circumference of the support plate; the second slot-type photoelectric sensor is fixedly connected to the upper surface of the fixed mounting plate; the second shading sheet is fixed in the middle position of the side of the movable plate.

[0012] Furthermore, the outer circumference of the hollow gear connecting plate is wrapped with a non-metallic material layer.

[0013] Furthermore, a through hole is provided in the center of the support plate; a plurality of waist-shaped through grooves are evenly distributed in an array along the central axis around the through hole, and the width of the waist-shaped through grooves is between 1-3 mm.

[0014] The beneficial effects of the present invention are as follows: the present invention uses a through-beam laser displacement sensor to automatically detect the thickness of multiple points on the circumference and diameter direction of the pole piece; at the same time, the mechanism automatically removes dust from the test bench, which can effectively improve the detection efficiency, detection accuracy and reliability of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the present invention;

[0016] Figure 2 This is a structural diagram of the pole piece turnover mechanism of the present invention;

[0017] Figure 3 yes Figure 2 The structure diagram of the end effector in ;

[0018] Figure 4 It is a structural diagram of the positioning mechanism of the present invention;

[0019] Figure 5 It is a detailed structural diagram of the positioning mechanism of the present invention;

[0020] Figure 6 It is a structural diagram of the thickness measuring mechanism of the present invention;

[0021] Figure 7 yes Figure 6 Thickness measurement component structure diagram in;

[0022] Figure 8 yes Figure 7 Another perspective structural diagram without fixed components;

[0023] Fig. 9 yes Figure 6 The moving mechanism and the rotating mechanism are removed from the structure diagram;

[0024] Fig.10 yes Fig. 9 The structural diagram of the middle rotating mechanism removing the support plate;

[0025] Fig.11 yes Fig. 9 Structure diagram of the middle rotating mechanism;

[0026] Fig.12 yes Fig. 9 Structure diagram of the mobile mechanism;

[0027] Fig.13 yes Fig.10 Middle support plate structure diagram;

[0028] Fig.14 It is a structural diagram of the turnover material waiting of the present invention.

[0029] In the figure: 1-large base plate, 2-pole piece turnover mechanism, 21-fixed base, 22-manipulator, 23-end actuator, 231-flange seat, 232-connecting plate, 233-piece taking mechanism, 2330-first slide cylinder, 2331-first fixed plate, 2332-vacuum suction cup, 234-dust removal mechanism, 2340-second slide cylinder, 2341-second fixed plate, 2342-dust removal cover, 3-positioning mechanism, 3 1-photographing assembly, 310-fixing seat, 311-supporting square tube, 312-flange support, 313-adapter plate, 314-camera, 32-positioning platform, 320-mounting seat, 321-pillar, 322-supporting circular plate, 4-thickness measuring mechanism, 41-thickness measuring assembly, 410-fixing assembly, 411-slide rail, 412-sensor assembly, 4120-mounting block, 4121-locking screw, 4122-horizontal fixing plate, 4123-laser displacement sensor, 42-moving mechanism, 421-fixed plate, 422-motor flange, 423-servo motor, 424-screw, 425-screw guide sleeve, 426-linear guide, 427-slider, 428-mounting bar, 429-first slot photoelectric sensor, 4210-first bearing seat, 4211-second bearing seat, 43-rotating mechanism, 431-moving plate, 432-side plate, 433- Fixed mounting plate, 434-rotating motor, 435-driving gear, 436-hollow driven gear, 437-hollow gear connecting plate, 438-first follower bearing, 439-support plate, 4390-through hole, 4391-waist-shaped through groove, 4310-first shading plate, 4311-second slot-type photoelectric sensor, 4312-second shading plate, 5-turnover waiting structure, 51-waiting plate, 52-unqualified barrel, 6-pole piece. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0031] The first embodiment of the present invention relates to Figure 1-14The electrode thickness detection device shown in the figure comprises a large base plate 1, an electrode turnover mechanism 2, a positioning mechanism 3, a thickness measuring mechanism 4 and a turnover material waiting structure 5; the positioning mechanism 3, the thickness measuring mechanism 4 and the turnover material waiting structure 5 are arranged in sequence on the upper surface of the large base plate 1 along the length direction, wherein the thickness measuring mechanism 4 is located between the positioning mechanism 3 and the turnover material waiting structure 5; the electrode turnover mechanism 2 is arranged in the right front of the turnover material waiting structure 5 and is fixedly connected to the upper surface of the large base plate 1. The large base plate 1 serves as a supporting surface; the electrode turnover mechanism 2 can realize the transfer of the electrode between workstations and the dust removal of the measuring workstation; the positioning mechanism 3 is mainly used to identify the center of the electrode to ensure the certainty of the position during detection; the thickness measuring mechanism 4 is mainly used to realize the multi-point thickness measurement of the electrode; the turnover material waiting structure 5 plays the role of collecting unqualified electrodes and caching the electrodes to be processed in the next process; the overall structure of the electrode thickness detection device is simple and compact. The thickness measuring mechanism 4 includes a thickness measuring component 41, a moving mechanism 42 and a rotating mechanism 43; the bottom surface of the moving mechanism 42 is fixed on the upper surface of the large bottom plate 1; the rotating mechanism 43 is slidably connected to the moving mechanism 42; the thickness measuring component 41 is arranged on the side of the moving mechanism 42 and is fixedly connected to the upper surface of the large bottom plate 1. The function of the thickness measuring component 41 is mainly to realize thickness detection and upload detection data; the moving mechanism 42 can provide high-precision displacement to ensure the accuracy of the measurement point of the pole piece in the diameter direction; the rotating mechanism 43 mainly realizes the thickness detection of the point in the circumferential direction of the pole piece by rotating the pole piece. The thickness measuring component 41 includes a fixing component 410, a slide rail 411 and a sensor component 412; the fixing component 410 includes a bottom panel, a vertical panel and a reinforcing rib, the bottom panel and the vertical panel are 90 degrees, and the bottom panel is fixedly connected to the upper surface of the large bottom plate 1; a slide rail 411 is provided on the vertical plate; the sensor components 412 are symmetrically connected to the slide rail 411 for sliding; the fixing component 410 is mainly used to support the sensor component 412; the slide rail 411 is used for the sensor component 412 to adjust the detection position; the sensor component 412 is mainly used to measure the thickness of the electrode. The sensor assembly 412 includes a fixed mounting block 4120, a locking screw 4121, a transverse fixing plate 4122 and a laser displacement sensor 4123; the mounting block 4120 is slidably connected to the slide rail 411; one end of the transverse fixing plate 4122 is fixedly connected to the side of the mounting block 4120, and the other end is fixedly connected to the back of the laser displacement sensor 4123; the upper and lower laser displacement sensors 4123 have overlapping light-emitting axes, and the light-emitting axes of the two laser displacement sensors overlap, ensuring that the laser is irradiated at the same position above and below the pole piece, thereby ensuring the accuracy of thickness detection and preventing detection errors caused by deformation of the pole piece.

[0032] The second embodiment of the present invention is basically the same as the first embodiment, mainly in that the pole piece turnover mechanism 2 is optimized. Figure 2 , Figure 3As shown, the pole piece turnover mechanism 2 includes a fixed base 21, a manipulator 22, and an end actuator 23; the bottom surface of the fixed base 21 is fixedly connected to the upper surface of the large base plate 1, and the opposite top surface is fixedly connected to the manipulator 22; the end actuator 23 is fixedly connected to the end of the manipulator 22. The fixed base 21 is used to fix the manipulator 22, and the manipulator 22 can realize the turnover movement of the pole piece between each station, and the end actuator 23 can perform the corresponding operations of taking and placing the pole piece and removing dust from the test bench.

[0033] The end actuator 23 includes a flange seat 231, a connecting plate 232, a film taking mechanism 233 and a dust removal mechanism 234; the flange seat 231 is "convex" in shape, one end of which is fixedly connected to the end of the manipulator 22, and the other end of the side is fixedly connected to the middle position of the back side of the connecting plate 232, and the film taking mechanism 233 and the dust removal mechanism 234 are respectively provided at both ends of the front side of the connecting plate 232. The film taking mechanism 233 includes a first slide cylinder 2330, a first fixed plate 2331, and a vacuum suction cup 2332; the back of the first slide cylinder 2330 is fixedly installed on the side of one end of the connecting plate 232, and the first fixed plate 2331 and the slider of the first slide cylinder 2330 are slidably connected; the vacuum suction cup 2332 passes through the first fixed plate 2331 and is fixedly connected; the vacuum suction cup 2332 is used to suck the pole piece; the first slide cylinder 2330 realizes the up and down movement function of the vacuum suction cup 2332 when taking and placing the pole piece; the dust removal mechanism 234 includes a second slide cylinder 2340, a second fixed plate 2341 and a dust removal Cover 2342; the back side of the second slide cylinder 2340 is fixed on the other end side of the connecting plate 232, and is arranged opposite to the first slide cylinder 2330; the second fixed plate 2341 and the slider of the second slide cylinder 2340 are slidably connected; the tail end of the dust cover 2342 is fixedly connected through the through hole of the second fixed plate 2341; the second slide cylinder 2340 is used to provide the dust cover 2342 with the function of moving up and down during dust removal; the tail end of the dust cover 2342 is connected to the dust collector through an air pipe, which is used to clean the dust dropped from the detection platform and the "residues" dropped from the pole piece to ensure the cleanliness of the test platform and improve the accuracy of detection.

[0034] The third embodiment of the present invention is basically the same as the first embodiment, mainly in that the solution of the positioning mechanism 3 is optimized. Figure 1 , Figure 4 , Figure 5As shown, the positioning mechanism 3 includes a camera assembly 31 and a positioning platform 32; the camera assembly 31 is arranged directly above the positioning platform 32; the camera assembly 31 includes a fixing seat 310, a supporting square tube 311, a flange support 312, an adapter plate 313 and a camera 314; the supporting square tube 311 is a rectangular parallelepiped, which can be quickly installed and locate the installation direction; the fixing seat 310 and the flange support 312 pass through the supporting square tube 311 and are fixedly connected by bolts; the adapter plate 313 is The positioning platform 32 is in the shape of an "L", with the short side fixedly connected to the side of the flange support 312, and the long side bottom surface fixedly connected to a camera 314; the positioning platform 32 includes a mounting seat 320, a pillar 321 and a supporting circular plate 322; the supporting circular plate 322 is located at the top, and its axis coincides with the axis of the camera 314; the supporting circular plate 322 is fixedly connected to a pillar 321 at the bottom; the lower end of the pillar 321 passes through the mounting seat 320 and is fixedly connected; the bottom surface of the mounting seat 320 is fixed to the upper surface of the large base plate 1. The positioning platform 32 is mainly used to support the pole piece, and the camera 314 of the camera assembly 31 is used to take an image of the pole piece and upload it to the upper computer so as to give the center coordinates of the pole piece to the manipulator 22, thereby ensuring that the manipulator 22 can grasp the center of the pole piece.

[0035] Since the electrode piece 6 formed by powder pressing is in the shape of a round cake, the robot 22 first grabs it from the carrier of the production line and places it in the positioning mechanism 3 for positioning. The robot 22 then grabs it accurately again and circulates between the various workstations. The task of the present invention is to quickly and accurately detect the thickness parameters of the electrode piece 6.

[0036] The fourth embodiment of the present invention is basically the same as the first embodiment, mainly in that the thickness measuring mechanism 4 is further optimized. Figure 6-Figure 13 As shown, the moving mechanism 42 includes a fixed plate 421, a motor flange 422, a servo motor 423, a screw 424, a screw guide sleeve 425, a linear guide rail 426, a slider 427, a mounting bar 428 and a first slot-type photoelectric sensor 429; the motor flange 422 is fixedly connected to the side of the short side of the fixed plate 421; the servo motor 423 is fixedly connected to the side of the motor flange 422; the output shaft of the servo motor 423 is fixedly connected to the screw 424 through a coupling; the screw guide sleeve 425 is rotatably connected to the screw 424, and both ends of the screw 424 are rotatably connected The first bearing seat 4210 and the second bearing seat 4211 are connected; the linear guide rails 426 are symmetrically arranged on both sides of the upper surface of the fixed plate 421; the linear guide rails 426 are slidably connected with a slider 427; the mounting bar 428 is fixedly connected to the long side of the fixed plate 421, and three first slot-type photoelectric sensors 429 are fixedly connected to the mounting bar 428, and the three first slot-type photoelectric sensors 429 are located on both sides for judging the front and rear limit positions during movement, and the middle one is used to search for the origin, so as to ensure the stable operation of the moving mechanism and to alarm and stop when reaching the limit to prevent collision.

[0037] The rotating mechanism 43 includes a moving plate 431, a side plate 432, a fixed mounting plate 433, a rotating motor 434, a driving gear 435, a hollow driven gear 436, a hollow gear connecting plate 437, a first follower bearing 438, a support plate 439, a first shading sheet 4310, a second slot-type photoelectric sensor 4311 and a second shading sheet 4312; the moving plate 431 is "concave" shaped, the bottom surface is slidably connected to the slider 427, and the side surface at the middle position of the concave shape is fixedly connected to the side surface of the screw guide sleeve 425; the side plates 432 are symmetrically fixed on both sides of the upper surface of the moving plate 431; the fixed mounting plate 433 is overlapped and fixed on the upper surface of the side plate 432; the rotating motor 434 is fixedly connected to the lower surface of the fixed mounting plate 433; the rotating motor 434 The output shaft passes through the through hole of the fixed mounting plate 433 and is fixedly connected to the driving gear 435; the hollow driven gear 436 rotates with the driving gear 435; the lower surface of the hollow driven gear 436 is fixedly connected with a hollow gear connecting plate 437; the first follower bearing 438 is fixed to the upper surface of the fixed mounting plate 433, and is evenly distributed around the hollow gear connecting plate 437 and rollingly cooperates with the hollow gear connecting plate 437; the upper surface of the hollow driven gear 436 is provided with a support plate 439; the first shading plate 4310 is clamped and fixed in the groove on the circumference of the support plate 439; the second slot-type photoelectric sensor 4311 is fixedly connected to the upper surface of the fixed mounting plate 433; the second shading plate 4312 is fixed to the middle position of the side of the movable plate 431. The movable plate 431 is used to support the rotating mechanism 43; the side plate 432 supports the fixed mounting plate 433 and forms a penetration movement space for the laser displacement sensor 4123 at the bottom; the rotating motor 434 provides power for the rotation of the support plate 439; the driving gear 435 and the hollow driven gear 436 provide an accurate transmission ratio to ensure the precise rotation of the support plate 439, thereby realizing the pole piece fixed angle detection function in the circumferential direction; the first follower bearing 438 ensures the stability of the shaftless rotation of the hollow driven gear 436; the first shading plate 4310 and the second slot-type photoelectric sensor 4311 are used for the rotating mechanism 43 to determine the origin position, thereby ensuring the operation accuracy and stability of the equipment.

[0038] The outer circumference of the hollow gear connecting plate 437 is wrapped with a non-metallic material layer, which can reduce noise during operation and ensure smooth operation.

[0039] A through hole 4390 is provided in the center of the support plate 439; a plurality of evenly distributed waist-shaped through grooves 4391 are arranged in an array along the central axis around the through hole 4390, and the width of the waist-shaped through grooves is between 1-3 mm; the waist-shaped through grooves 4391 can facilitate the laser of the laser displacement sensor 4123 at the bottom to pass through, thereby realizing through-beam detection and improving detection accuracy. At the same time, the waist-shaped through grooves 4391 are distributed in an array in the circumferential direction, which can realize the multi-point detection function of the pole piece in the circumferential direction and the diameter direction.

[0040] The fifth embodiment of the present invention is basically the same as the first embodiment, mainly in that it is further optimized. Figure 1 and Fig.14 The turnover waiting structure 5 includes a waiting plate 51 and an unqualified material barrel 52. The unqualified material barrel 52 is cylindrical, and the lower end of the top step is clamped and positioned in the semicircular groove of the waiting plate 51. The waiting plate 51 is in the shape of a "7", and the short flat surface on the top is used to place the electrode, and the bottom of the long side plate is installed on the upper surface of the large bottom plate 1; the qualified products are placed on the waiting plate 51, waiting to be grabbed by the mechanism of the next workstation for the next process operation. The unqualified material barrel 52 is used to store unqualified electrode pieces. The structure is simple and convenient for installation and disassembly.

[0041] Based on this, a typical working process of the present invention is:

[0042] When the present invention is implemented, Figure 1-14 As shown; first, the number of detection points and detection positions are pre-set according to the needs, and then the equipment is started. The vacuum suction cup 2332 of the end actuator 23 of the pole piece turnover mechanism 2 sucks the pole piece 6 pressed by powder from the production line carrier and places it on the supporting circular plate 322 of the positioning mechanism 3. The camera 314 takes a photo to identify the center position of the pole piece 6. The manipulator 22 carries the film-taking mechanism 233 to move above the pole piece 6, the first slide cylinder 2330 extends, and the vacuum suction cup 2332 sucks the pole piece; at the same time, the dust removal mechanism 234 is located directly above the support plate 439 of the thickness measuring mechanism 4, the second slide cylinder 2340 extends, and the dust removal cover 2342 covers the support plate 439 to absorb dust and other impurities; after completion, each mechanism is reset, and then the manipulator 2 2 moves to the thickness measuring mechanism 4, and places the electrode 6 on the support plate 439. At this time, the moving mechanism 42 is activated to move the electrode to the set first detection position, and the thickness measuring component 41 detects the thickness of the first point. After completion, the moving mechanism 42 continues to move until all the set points of the electrode along the diameter direction are detected; then the rotating mechanism 43 rotates the set angle, and the moving mechanism 42 repeats the above actions until the point detection of the set angle is completed. The manipulator 22 carries the vacuum suction cup 2332 to take away the electrode that has been tested and place it on the waiting plate 51 of the turnover waiting structure 5. If the detected electrode is a defective product, it is directly thrown into the defective barrel 52, and the cycle is repeated in sequence to realize multi-point thickness measurement of the electrode in the diameter and circumference directions.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pole piece thickness detection device, characterized in that: The invention comprises a large base plate (1), a pole piece turnover mechanism (2), a positioning mechanism (3), a thickness measuring mechanism (4) and a turnover material waiting structure (5); the positioning mechanism (3), the thickness measuring mechanism (4) and the turnover material waiting structure (5) are arranged in sequence on the upper surface of the large base plate (1) along the length direction, wherein the thickness measuring mechanism (4) is located between the positioning mechanism (3) and the turnover material waiting structure (5); the pole piece turnover mechanism (2) is arranged at the right front of the turnover material waiting structure (5) and is fixedly connected to the upper surface of the large base plate (1); the thickness measuring mechanism (4) comprises a thickness measuring component (41), a moving mechanism (42) and a rotating mechanism (43); the bottom surface of the moving mechanism (42) is fixed to the upper surface of the large base plate (1); the rotating mechanism (43) is slidably connected to the moving mechanism (42); the thickness measuring component (41) is arranged on the side of the moving mechanism (42) and is fixedly connected to the upper surface of the large base plate (1); the thickness measuring component (41) comprises a fixing component (410), a sliding The fixing assembly (410) comprises a bottom panel, a vertical panel and a reinforcing rib, the bottom panel and the vertical panel being 90 degrees apart, and the bottom panel being fixedly connected to the upper surface of the large bottom panel (1); the vertical panel is provided with a slide rail (411); the sensor assembly (412) comprises two symmetrically connected slide rails (411); the sensor assembly (412) comprises a mounting block (4120), a locking screw (4121), a transverse fixing plate (4122) and a laser displacement sensor (4123); the mounting block (4120) is slidably connected to the slide rail (411); one end of the transverse fixing plate (4122) is fixedly connected to the side of the mounting block (4120), and the other end of the transverse fixing plate (4122) is fixedly connected to the back of the mounting block (4120); the light-emitting axes of the two laser displacement sensors (4123) coincide; the locking screw (4121) is fixed to the side of the mounting block (4120).

2. The electrode thickness detection device according to claim 1, characterized in that: The pole piece turnover mechanism (2) comprises a fixed base (21), a manipulator (22), and an end actuator (23); the bottom surface of the fixed base (21) is fixedly connected to the upper surface of the large base plate (1), and the opposite top surface is fixedly connected to the manipulator (22); the end actuator (23) is fixedly connected to the end of the manipulator (22).

3. The electrode thickness detection device according to claim 2, characterized in that: The end actuator (23) comprises a flange seat (231), a connecting plate (232), a film taking mechanism (233) and a dust removal mechanism (234); the flange seat (231) is convex in shape, one end of which is fixedly connected to the end of the manipulator (22), and the side surface of the other end is fixedly connected to the middle position of the back side of the connecting plate (232); the film taking mechanism (233) and the dust removal mechanism (234) are respectively provided at both ends of the front side of the connecting plate (232).

4. The pole piece thickness detection device according to claim 1, characterized in that: The positioning mechanism (3) comprises a photographing assembly (31) and a positioning platform (32); the photographing assembly (31) is arranged directly above the positioning platform (32); the photographing assembly (31) comprises a fixing seat (310), a supporting square tube (311), a flange support (312), an adapter plate (313) and a camera (314); the supporting square tube (311) is in the shape of a rectangular parallelepiped, the fixing seat (310) and the flange support (312) pass through the supporting square tube (311) and are fixedly connected by bolts; the adapter plate (313) is in the shape of an "L" with a short The side surface is fixedly connected to the side surface of the flange support (312), and the bottom surface of the long side is fixedly connected to the camera (314); the positioning platform (32) comprises a mounting seat (320), a pillar (321) and a supporting circular plate (322); the supporting circular plate (322) is located at the top, and its axis coincides with the axis of the camera (314); the lower part of the supporting circular plate (322) is fixedly connected to the pillar (321); the lower end of the pillar (321) passes through the mounting seat (320) and is fixedly connected; the bottom surface of the mounting seat (320) is fixed to the upper surface of the large bottom plate (1).

5. The pole piece thickness detection device according to claim 1, characterized in that: The moving mechanism (42) comprises a fixed plate (421), a motor flange (422), a servo motor (423), a screw (424), a screw guide sleeve (425), a linear guide rail (426), a slider (427), a mounting bar (428) and a first slot-shaped photoelectric sensor (429); the motor flange (422) is fixedly connected to the side of the short side of the fixed plate (421); the servo motor (423) is fixedly connected to the side of the motor flange (422); the output shaft of the servo motor (423) is connected to the screw (423) via a coupling. 4) fixed connection; the screw guide sleeve (425) is rotatably connected to the screw (424), and the two ends of the screw (424) are rotatably connected to the first bearing seat (4210) and the second bearing seat (4211); the linear guide rails (426) are symmetrically arranged on both sides of the upper surface of the fixed plate (421); the linear guide rails (426) are slidably connected to the sliders (427); the mounting strip (428) is fixedly connected to the long side of the fixed plate (421), and the mounting strip (428) is respectively fixedly connected to three first slot-type photoelectric sensors (429).

6. The pole piece thickness detection device according to claim 1, characterized in that: The rotating mechanism (43) comprises a moving plate (431), a side plate (432), a fixed mounting plate (433), a rotating motor (434), a driving gear (435), a hollow driven gear (436), a hollow gear connecting plate (437), a first follower bearing (438), a supporting plate (439), a first light shielding plate (4310), a second slot-shaped photoelectric sensor (4311) and a second light shielding plate (4312); the moving plate (431) is concave in shape, the bottom surface is slidably connected to the slider (427), and the side surface at the middle position of the concave shape is fixedly connected to the side surface of the screw guide sleeve (425); a total of two side plates (432) are symmetrically fixed on both sides of the upper surface of the moving plate (431); the fixed mounting plate (433) is overlapped and fixed on the upper surface of the side plate (432); the rotating motor (434) is fixedly connected to the lower surface of the fixed mounting plate (433); the rotating motor The output shaft of the gear (434) passes through the through hole of the fixed mounting plate (433) and is fixedly connected to the driving gear (435); the hollow driven gear (436) is rotationally matched with the driving gear (435); the lower surface of the hollow driven gear (436) is fixedly connected with a hollow gear connecting plate (437); the first follower bearing (438) is fixed on the upper surface of the fixed mounting plate (433) and is evenly distributed around the hollow gear connecting plate (437) and rollingly matched with the hollow gear connecting plate (437); the upper surface of the hollow driven gear (436) is provided with a support plate (439); the first light shielding plate (4310) is clamped and fixed in a groove on the circumference of the support plate (439); the second slot-type photoelectric sensor (4311) is fixedly connected to the upper surface of the fixed mounting plate (433); and the second light shielding plate (4312) is fixed at the middle position of the side of the movable plate (431).

7. The pole piece thickness detection device according to claim 6, characterized in that: The outer circumference of the hollow gear connecting plate (437) is wrapped with a non-metallic material layer.

8. The pole piece thickness detection device according to claim 6, characterized in that: The support plate (439) is provided with a through hole (4390) at the centre; a plurality of evenly distributed waist-shaped through grooves (4391) are arranged in an array along the central axis around the through hole (4390); the width of the waist-shaped through grooves (4391) is between 1 and 3 mm.

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