A soft-pack lithium battery thickness detection device

Abstract

The utility model discloses a soft-pack lithium battery thickness detection device. The utility model has a left thickness detection mechanism and a right thickness detection mechanism on both sides of the production line equipment platform, and a material picking device is arranged above the production line equipment platform; the left thickness detection mechanism or the right thickness detection mechanism includes an upper detection platform component and a lower detection platform component; the upper detection platform component is located above the lower detection platform component, and the lower detection platform component is located on one side of the production line equipment platform; the slide module of the material picking device is fixed to the front side of the mounting bracket crossbeam, and the two side columns of the mounting bracket are respectively fixed to the lower detection platform components on both sides, and the left material picking mechanism and the right material picking mechanism with the same structure are respectively arranged on the slide module. The utility model can realize online thickness detection of all batteries passing through the production line, avoiding the situation where defective products are transferred to customers due to only random inspection.

Description

Technical Field

[0001] The utility model relates to the field of soft-pack lithium-ion battery production, and more specifically, to a soft-pack lithium battery thickness detection device. Background Art

[0002] With the development of the global economy, the application scope of soft-pack lithium-ion batteries has been continuously expanded and has rapidly penetrated into all walks of life. In particular, electronic products are constantly evolving towards ultra-thin and portable, and the thickness and size control accuracy of soft-pack lithium-ion batteries has become more stringent. How to meet the online fast, accurate and safe detection of the thickness of soft-pack lithium-ion batteries is an urgent problem facing technicians in this industry.

[0003] At present, the thickness detection of soft-pack lithium-ion batteries is mainly carried out offline using calipers or height gauges. The detection efficiency is low, and only random inspections can be carried out. It is impossible to test all batches of batteries. It is easy for defective products with non-compliant thickness dimensions to flow into the hands of customers. In addition, the test results are easily affected by the pressure applied to the battery surface by the detection tool, which is easy to cause inaccurate test results. In reality, there are also cases where small-scale detection equipment is used to perform offline thickness detection of batteries, but there are still problems such as being unsuitable for large-volume battery thickness detection and unstable pressure control leading to inaccurate test results. The utility model proposes a new set of solutions to the many shortcomings mentioned above, which can ensure that batteries can be quickly, accurately and safely detected online on the production line. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a soft-pack lithium battery thickness detection device.

[0005] The utility model discloses a soft-pack lithium battery thickness detection device, which is realized by the following technical scheme, including a production line equipment platform, a left thickness detection mechanism and a right thickness detection mechanism are respectively arranged on both sides of the production line equipment platform, the left thickness detection mechanism and the right thickness detection mechanism have the same structure and are symmetrically arranged, and a material taking device is arranged above the production line equipment platform;

[0006] The left thickness detection mechanism or the right thickness detection mechanism comprises an upper detection platform component and a lower detection platform component; the upper detection platform component is located above the lower detection platform component, and the lower detection platform component is located on one side of the production line equipment platform;

[0007] The material picking device consists of a mounting bracket, a slide module, a left material picking mechanism and a right material picking mechanism. The slide module is fixed to the front side of the mounting bracket crossbeam, and the two side columns of the mounting bracket are respectively fixed to the lower detection platform assemblies on both sides. The left material picking mechanism and the right material picking mechanism with the same structure are respectively arranged on the slide module.

[0008] The upper detection platform assembly includes a marble upper detection platform 1-1, a lifting main board 1-2 arranged above the marble upper detection platform 1-1, a lifting connection plate 1-3 arranged on one side of the lifting main board 1-2, a lifting cylinder joint 1-4 arranged on the lifting connection plate with a loop, a lifting cylinder 1-5 arranged on the cylinder joint with a thread connection, a support plate 1-6 arranged below the lifting cylinder, a displacement sensor bracket 1-7 arranged on one side of the support plate, a displacement sensor 1-8 arranged on the displacement sensor bracket with a thread connection, a steering wheel bracket 1-9 arranged above the support plate, and a lifting cylinder 1-4 arranged on both sides of the steering wheel bracket with a thread connection. A steering wheel 1-10, a steel wire rope 1-11 arranged on the steering wheel groove, a connecting block 1-12 connected to one end of the steel wire rope, a fixing block 1-13 arranged below the connecting block, a lifting support block 1-14 arranged below the support plate, a cross roller guide rail 1-15 arranged on the right side of the lifting support block and a detection column 1-16 arranged on the left side, a linear track 1-17 arranged on the detection column, a weight support plate 1-18 arranged on one side of the linear track, a steel wire rope pressure block 1-19 and a threaded weight fixing screw 1-20 arranged on the left side of the weight support plate, and a weight 1-21 arranged on the weight fixing screw.

[0009] The lower inspection platform assembly includes a base bottom plate 1-22 arranged below the inspection column, a base vertical plate 1-23 arranged below the base bottom plate and a linear rail support plate 1-24 arranged above, a linear rail 1-25 arranged above the linear rail support plate, an inspection table bottom plate 1-26 arranged above the linear rail, a transverse cylinder 1-27 arranged below the inspection table bottom plate and an inspection table support plate 1-28 above it, and a marble inspection table 1-29 arranged above the inspection table support plate.

[0010] The left-side material picking mechanism or the right-side material picking mechanism includes a cylinder fixing plate 2-3 arranged in front of the module, a lifting cylinder 2-4-1 and a lifting cylinder 2-4-2 symmetrically arranged in front of the cylinder fixing plate, a suction cup fixing plate 2-5-1 and a suction cup fixing plate 2-5-2 are respectively installed under the lifting cylinder 2-4-1 and the lifting cylinder 2-4-2, and a suction cup 2-6-1 and a suction cup 2-6-2 are respectively arranged on the suction cup fixing plate 2-5-1 and the suction cup fixing plate 2-5-2.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By adding a battery thickness detection device to the battery degassing equipment or sorting machine, the thickness of all batteries passing through the production line can be detected online, avoiding the occurrence of defective products being transferred to customers due to random inspections.

[0013] 2. Since online detection devices are used for detection, offline separate detection is no longer required, which avoids inaccurate detection results caused by manual detection tools and human factors, and can save detection personnel.

[0014] 3. The battery thickness detection device adopts a left-right layout, adds an automatic battery pick-up and placement mechanism, and performs detection in a staggered time, ensuring that the detection speed matches the production line efficiency and does not affect the production line output.

[0015] 4. In order to ensure the accuracy of the test results, it is necessary to adjust the pressure applied to the battery surface during the test according to the size and thickness of the battery. The utility model has a platform for placing weights, which can add and subtract weights as needed. The platform is provided with a linear track, and the platform can be raised and lowered along the track to reduce the effect of friction on the pressure applied to the battery surface.

[0016] 5. In order to ensure the accuracy of the test results, the upper detection mechanism is raised and lowered using a cross roller guide rail. The friction of the guide rail can be adjusted externally. At the same time, the cross roller guide rail has better rigidity, which can ensure that the upper detection mechanism does not deflect when it descends, and ensure that the marble platform of the upper detection mechanism is in full contact with the battery surface.

[0017] 6. In order to ensure the accuracy of the test results, the cylinder rod of the upper detection mechanism lifting cylinder is connected to the upper detection mechanism with a slip-on connection instead of a completely fixed connection. The function of the cylinder is to lift the upper detection mechanism and control the descending speed of the upper detection mechanism, but it does not provide pressure on the battery surface. This can avoid inaccurate test results caused by unstable cylinder output force.

[0018] 7. In order to ensure the accuracy of the test results, the fixed bracket of the testing mechanism is welded with profiles, which can ensure the rigidity of the entire testing mechanism and prevent inaccurate test results due to deformation or insufficient assembly accuracy.

[0019] 8. The detection sensor uses the Keyence GT2-H32 displacement sensor, which can collect monitoring data through the host computer and PLC, and the detection results can be bound to the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is one of the schematic diagrams of the left thickness detection mechanism of the utility model;

[0022] Figure 3 This is the second schematic diagram of the left thickness detection mechanism of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the material taking mechanism of the utility model;

[0024] Figure 5 This is one of the schematic diagrams of the right thickness detection mechanism of the utility model;

[0025] Figure 6 This is the second schematic diagram of the right thickness detection mechanism of the utility model. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the utility model, and the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0027] See Figure 1 for details, a soft-pack lithium battery thickness detection device, a left thickness detection mechanism 1 and a right thickness detection mechanism 2 are respectively arranged on both sides of the production line equipment platform 4, the left thickness detection mechanism and the right thickness detection mechanism have the same structure and are symmetrically arranged, and a material taking device 2 is arranged above the production line equipment platform;

[0028] The left thickness detection mechanism or the right thickness detection mechanism comprises an upper detection platform component and a lower detection platform component; the upper detection platform component is located above the lower detection platform component, and the lower detection platform component is located on one side of the production line equipment platform;

[0029] The material picking device is composed of a mounting bracket, a slide module, a left material picking mechanism and a right material picking mechanism. The slide module is fixed to the front side of the mounting bracket crossbeam, and the two side columns of the mounting bracket are respectively fixed to the lower detection platform components on both sides. The left material picking mechanism and the right material picking mechanism with the same structure are respectively installed on the slide module. The slide module uses the commercially available product KKR60C-600A1-F0CS2.

[0030] See Figures 2 and 3 for details. The left upper detection platform assembly includes a left marble upper detection platform 1-1, a left lifting main board 1-2 arranged above the left marble upper detection platform 1-1, a left lifting connecting plate 1-3 arranged on one side of the left lifting main board 1-2, a left lifting cylinder joint 1-4 arranged on the left lifting connecting plate with a loop, a left lifting cylinder 1-5 arranged on the left lifting cylinder joint with a thread connection, a left supporting plate 1-6 arranged below the left lifting cylinder, a left displacement sensor bracket 1-7 arranged on one side of the left supporting plate, a left displacement sensor 1-8 arranged on the left displacement sensor bracket with a thread connection, a left steering wheel bracket 1-9 arranged above the left supporting plate, a left steering wheel 1-10 arranged on both sides of the left steering wheel bracket with a thread connection, a left steel wire rope 1-11 arranged on the wheel groove of the left steering wheel, a left connecting block 1-12 connected to one end of the left steel wire rope, a left fixing block 1-13 arranged below the left connecting block, a left lifting support block 1-14 arranged below the left supporting plate, and a A left cross roller guide rail 1-15 is arranged on the right side of the left lifting support block, a left detection column 1-16 is arranged on the left side of the left lifting support block, a left linear track 1-17 is arranged on the left detection column, a left weight support plate 1-18 is arranged on one side of the left linear track, a left wire rope pressure block 1-19 and a threaded left weight fixing screw 1-20 are arranged on the left side of the left weight support plate, a left weight 1-21 is arranged on the left weight fixing screw, and a left lower detection platform assembly includes a left detection column 1-16 arranged on the left side of the left lifting support block, a left detection column 1-17 is arranged on the left detection column, a left weight support plate 1-18 is arranged on one side of the left linear track, a left wire rope pressure block 1-19 and a threaded left weight fixing screw 1-20 are arranged on the left side of the left weight support plate, and a left weight 1-21 is arranged on the left weight fixing screw. The left base bottom plate 1-22 below the measuring column, the left base vertical plate 1-23 arranged below the base bottom plate and the left linear track support plate 1-24 above are arranged symmetrically, the left linear track 1-25 arranged above the left linear track support plate, the left inspection table bottom plate 1-26 arranged above the left linear track, the left transverse cylinder 1-27 arranged below the left inspection table bottom plate and the left inspection table support plate 1-28 above, and the left marble inspection table 1-29 arranged above the left inspection table support plate;

[0031] See Figure 4 for details. The material-retrieving device is composed of a mounting bracket 2-1, a slide module 2-2, a left material-retrieving mechanism and a right material-retrieving mechanism. The slide module is fixed to the front side of the mounting bracket crossbeam, and the two side columns of the mounting bracket are respectively fixed to the lower detection platform components on both sides. The left material-retrieving mechanism and the right material-retrieving mechanism with the same structure are respectively installed on the slide module; the material-retrieving mechanism 2 is provided with a mounting bracket, a module arranged in front of the mounting bracket, a left material-retrieving mechanism and a right material-retrieving mechanism. The structure includes a cylinder fixing plate 2-3 installed on the front side of the slide module, a lifting cylinder 2-4-1 and a lifting cylinder 2-4-2 arranged symmetrically in front of the cylinder fixing plate, a suction cup fixing plate 2-5-1 and a suction cup fixing plate 2-5-2 are respectively installed under the lifting cylinder 2-4-1 and the lifting cylinder 2-4-2, and a suction cup 2-6-1 and a suction cup 2-6-2 are respectively arranged on the suction cup fixing plate 2-5-1 and the suction cup fixing plate 2-5-2. The suction cup adopts the commercially available product SZU16N-EI10-M10; the cylinder adopts the commercially available product MGQM12-75-M9B.

[0032] See Figures 5 and 6 for details. The right upper detection platform assembly includes a right marble upper detection platform 3-1, a right lifting main board 3-2 arranged above the right marble upper detection platform, a right lifting connecting plate 3-3 arranged on one side of the right lifting main board 3-2, a right lifting cylinder joint 3-4 arranged on the right lifting connecting plate with a loop, a right lifting cylinder 3-5 arranged on the right lifting cylinder joint with a thread connection, a right supporting plate 3-6 arranged below the right lifting cylinder, a right displacement sensor bracket 3-7 arranged on one side of the right supporting plate, a right displacement sensor 3-8 arranged on the right displacement sensor bracket with a thread connection, a right steering wheel bracket 3-9 arranged above the right supporting plate 3-6, a right steering wheel 3-10 arranged on both sides of the right steering wheel bracket with a thread connection, a right steel wire rope 3-11 arranged on the right steering wheel groove, a right connecting block 3-12 connected to one end of the right steel wire rope, a right fixing block 3-13 arranged below the connecting block, a right lifting support block 3-14 arranged below the support plate, and a right lifting support block 3-15 arranged on the right supporting plate. The right cross roller guide 3-15 on the right side of the right lifting support block, the right detection column 3-16 arranged on the left side of the right lifting support block, the right linear track 3-17 arranged on the right detection column, the right weight support plate 3-18 arranged on one side of the right linear track, the right wire rope pressure block 3-19 and the threaded right weight fixing screw 3-20 arranged on the left side of the right weight support plate, the right weight 3-21 arranged on the right weight fixing screw, and the right upper detection platform assembly include a right detection column 3-16 arranged on the right detection column, a right weight support plate 3-18 arranged on one side of the right linear track, a right wire rope pressure block 3-19 and a threaded right weight fixing screw 3-20 arranged on the left side of the right weight support plate, and a right weight 3-21 arranged on the right weight fixing screw. The right base bottom plate 3-22 below the column, the right base vertical plate 3-23 arranged below the right base bottom plate and the right linear rail support plate 3-24 above are arranged symmetrically, the right linear rail 3-25 arranged above the right linear rail support plate, the right inspection table bottom plate 3-26 arranged above the right linear rail, the right transverse cylinder 3-27 arranged below the right inspection table bottom plate and the right inspection table support plate 3-28 above, and the right marble inspection table 3-29 arranged above the right inspection table support plate. The cross roller guide adopts the commercially available product DEHD-1027-CRV3075.

[0033] The production line equipment platform 4 is provided by the production line where it is located and will not be elaborated here.

[0034] The working process of the utility model is as follows:

[0035] 1. The battery to be tested flows from the equipment production line to the thickness detection station. The left pick-up mechanism of the battery pick-up mechanism picks up the battery, and the module moves horizontally toward the left thickness detection mechanism. After it is in place, the left pick-up mechanism puts the battery on the left lower detection platform of the left thickness detection mechanism. The left lower detection platform moves horizontally to the detection position, and the left upper detection platform descends and presses on the battery body. After the battery thickness detection is completed, the left upper detection platform rises to its position, the left lower detection platform moves horizontally to the loading position, and the left pick-up mechanism picks up the battery that has completed the inspection;

[0036] 2. While the above actions are being performed, the next battery to be tested on the equipment production line has been transferred to the thickness detection station. The right side of the battery picking mechanism picks up the battery to be tested. At this time, there are batteries that have been tested on the left side of the picking mechanism, and there are batteries to be tested on the right side of the picking mechanism. The thickness detection station on the right side is idle;

[0037] 3. The module of the battery picking mechanism moves horizontally toward the thickness detection mechanism on the right. After it is in place, the left picking mechanism puts the tested battery on the thickness detection station. At the same time, the right picking mechanism puts the battery to be tested on the lower detection platform on the right side of the thickness detection mechanism on the right side. The lower detection platform on the right side moves horizontally to the detection position. The upper detection platform on the thickness detection mechanism on the right side descends and presses on the battery body. After completing the battery thickness detection, the upper detection platform on the right side rises to its position, the lower detection platform on the right side moves horizontally to the loading position, and the right picking mechanism absorbs the tested battery.

[0038] 4. While the above actions are being performed, the next battery to be tested on the equipment production line has been transferred to the thickness detection station, and the left pick-up mechanism picks up the battery to be tested. At this time, there are batteries to be tested on the left pick-up mechanism, and there are tested batteries on the right pick-up mechanism. The thickness detection station on the right is idle;

[0039] 5. The module of the battery picking mechanism moves horizontally toward the left thickness detection mechanism. At this time, the entire set of thickness detection mechanism completes a cycle action, and the above steps are repeated laterally.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A soft-pack lithium battery thickness detection device, including a production line equipment platform, characterized in that: A left thickness detection mechanism and a right thickness detection mechanism are respectively arranged on both sides of the production line equipment platform. The left thickness detection mechanism and the right thickness detection mechanism have the same structure and are symmetrically arranged. A material taking device is arranged above the production line equipment platform. The left thickness detection mechanism or the right thickness detection mechanism comprises an upper detection platform component and a lower detection platform component; the upper detection platform component is located above the lower detection platform component, and the lower detection platform component is located on one side of the production line equipment platform; The material taking device is composed of a mounting bracket, a slide module, a left material taking mechanism and a right material taking mechanism.

2. The soft-pack lithium battery thickness detection device according to claim 1, characterized in that: The slide module is fixed to the front side of the mounting bracket crossbeam, and the two side columns of the mounting bracket are respectively fixed to the lower detection platform components on both sides, and the left and right material picking mechanisms with the same structure are respectively installed on the slide module.

3. The soft-pack lithium battery thickness detection device according to claim 1, characterized in that: The upper detection platform assembly includes a marble upper detection platform, a lifting main board arranged above the marble upper detection platform, a lifting connecting plate arranged on one side of the lifting main board, a lifting cylinder joint connected to the lifting connecting plate with a loop, a lifting cylinder threadedly connected to the cylinder joint, and a support plate arranged below the lifting cylinder.

4. The soft-pack lithium battery thickness detection device according to claim 3 is characterized in that: A displacement sensor bracket is installed on one side of the support plate, a displacement sensor threadedly connected to the displacement sensor bracket, a steering wheel bracket is arranged above the support plate, steering wheels are threadedly connected on both sides of the steering wheel bracket, a wire rope is arranged on the steering wheel groove, a connecting block connected to one end of the wire rope, and a fixed block is arranged below the connecting block.

5. The soft-pack lithium battery thickness detection device according to claim 4, characterized in that: A lifting support block is installed under the support plate, a cross roller guide rail is arranged on the right side of the lifting support block and a detection column is arranged on the left side, a linear track is arranged on the detection column, a weight support plate is arranged on one side of the linear track, a wire rope pressure block and a threaded weight fixing screw are arranged on the left side of the weight support plate, and a weight is arranged on the weight fixing screw.

6. The soft-pack lithium battery thickness detection device according to claim 1, characterized in that: The lower inspection platform assembly includes a base bottom plate arranged below the inspection column, a base vertical plate arranged below the base bottom plate and a linear rail support plate arranged above, a linear rail arranged above the linear rail support plate, an inspection table bottom plate arranged above the linear rail, a transverse cylinder arranged below the inspection table bottom plate and an inspection table support plate above it, and a marble inspection table arranged above the inspection table support plate.

7. The soft-pack lithium battery thickness detection device according to claim 1, characterized in that: The left-side material picking mechanism or the right-side material picking mechanism includes a cylinder fixing plate arranged in front of the module, a lifting cylinder 1 and a lifting cylinder 2 arranged symmetrically in front of the cylinder fixing plate, a suction cup fixing plate 1 and a suction cup fixing plate 2 are respectively installed under the lifting cylinder 1 and the lifting cylinder 2, and a suction cup 1 and a suction cup 2 are respectively arranged on the suction cup fixing plate 1 and the suction cup fixing plate 2.

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