A driving device and a cylindrical battery case detection device

Abstract

The present invention discloses a driving device and a cylindrical battery case detection device, belonging to the field of battery case detection devices. The driving device includes a driving member, a support plate, a driving member, a driven member, a transfer movement bracket, and a transfer movement support plate. The cylindrical battery case detection device includes a flipping member, a detection light source, a line array camera, and a driving device. The transfer movement support plate is fixed to the top of the transfer movement bracket, and both the detection light source and the line array camera are arranged above the flipping member. It drives the transfer movement bracket to make a circular motion around the driving member through the driving device and the driving member, while keeping the horizontal posture unchanged, and can maintain stability under high-speed movement, improving the stability of transporting the battery case. For the cylindrical battery case detection device, its transfer movement support plate realizes multi-station simultaneous continuous transfer through the driving device, ensuring the orderliness and high efficiency of the detection process, being particularly suitable for batch detection scenarios, and significantly improving the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the field of battery case detection devices, and more specifically, to a driving device and a cylindrical battery case detection device. Background Art

[0002] Cylindrical batteries play an important role in people's work and life. With the development of batteries (especially lithium batteries) towards high energy density and their wide application in new energy vehicles and cordless power tools, their safety performance has attracted more and more attention. As the outer shell of the cylindrical battery, the cylindrical battery case not only plays a sealing role but also is an important line of defense for battery failure safety. Therefore, the quality requirements for cylindrical battery cases are very high. However, at present, cylindrical battery case manufacturers still mainly rely on visual inspection. Due to the high reflectivity of the surface of the cylindrical battery case, visual inspection is difficult, with not only a high missed inspection rate and slow inspection speed, but also great damage to the eyesight of inspectors during long-term high-intensity work, which is not conducive to the improvement of the overall quality of the battery industry.

[0003] CN217349628U discloses a steel shell transfer and flipping device. Through the coordinated action of a lifting cam and a translation cam, this mechanism realizes the rising, translation, falling, and resetting of a toothed clamping plate, thereby pushing the steel shell to advance step by step along the feeding guide rail. This transmission structure includes multiple components such as a lifting cam, a translation cam, and a toothed clamping plate, with a complex structure, difficult installation and debugging. After long-term use, the wear of the cam may cause the mechanism to fail, resulting in high maintenance and replacement costs; in addition, the movement of the mechanism is intermittent, and the toothed clamping plate needs to complete four steps of rising, translation, falling, and resetting to push the steel shell forward once. This discontinuous movement method leads to low transmission efficiency and cannot meet the requirements of rapid and continuous detection. Summary of the Invention

[0004] In order to overcome the defects in the driving structure of the battery case detection device in the prior art, such as complex structure, difficult installation, adjustment, and maintenance, and low transmission efficiency, the present invention provides a driving device and a cylindrical battery case detection device, which have high detection accuracy, simple structure, low installation, adjustment, and maintenance costs, and high transmission efficiency.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] The present invention provides a driving device, including a driving member, a support plate, a driving member, a driven member, a transfer movement bracket, and a transfer movement support plate. The power output end of the driving member passes through the support plate and is fixedly connected to the driving member. The driving member is rotatably connected to the transfer movement bracket. The driven member is connected to the support plate and is rotatably connected to the transfer movement bracket. The transfer movement support plate is fixed to the top of the transfer movement bracket, and a plurality of bays for receiving battery cases are provided on the transfer movement support plate.

[0007] In a preferred technical solution of the present invention, the driving member includes a driving machine and an output shaft, and one end of the output shaft is fixed to the power output end of the driving machine; the driving member includes a driving swing arm and a follower bearing, one end of the driving swing arm is fixed to the other end of the output shaft, the inner ring of the follower bearing is connected to the other end of the driving swing arm, and the outer ring of the follower bearing is connected to the transfer motion bracket.

[0008] In a preferred technical solution of the present invention, the driven member includes a driven swing arm, a first driven bearing, and a second driven bearing; one end of the driven swing arm is rotatably connected to the support plate through the first driven bearing, and the other end of the driven swing arm is rotatably connected to the transfer motion bracket through the second driven bearing.

[0009] In a preferred technical solution of the present invention, there is at least one driving member and three driven members.

[0010] In a preferred technical solution of the present invention, the rotation centers of any three driven swing arms are not collinear.

[0011] In a preferred technical solution of the present invention, the follower bearing is a cam bearing follower. The first driven bearing and the second driven bearing are both crossed roller bearings.

[0012] The present invention also provides a cylindrical battery case detection device, including a flipping member, a detection light source, a line array camera, and a driving device. Two of the transfer motion pallets are fixedly arranged side by side on the top of the transfer motion bracket. The flipping member is arranged between the two transfer motion pallets, and the detection light source and the line array camera are both arranged above the flipping member.

[0013] In a preferred technical solution of the present invention, a plurality of the flipping members are arranged in sequence along the extending direction of the transfer motion pallet.

[0014] The beneficial effects of the present invention are as follows:

[0015] A driving device provided by the present invention drives the transfer motion bracket to make a circular motion around the driving member through the driving device and the driving member, while keeping the horizontal posture unchanged, and can maintain stability during high-speed movement, improving the stability of transporting the battery case. The transfer motion bracket can continuously rotate around the axis, realizing uninterrupted cyclic transportation, and at the same time has high stability and high load-bearing capacity.

[0016] For the cylindrical battery case detection device provided by the present invention, the transfer motion pallet realizes multi-station simultaneous continuous transfer through the driving device, ensuring the orderliness and high efficiency of the detection process, being particularly suitable for batch detection scenarios, and significantly improving the detection efficiency.

[0017] This device gets rid of the dependence on linear guide rails, realizes reliable support for the high-speed movement of the XY axes, avoids the vibration and wear problems caused by splitting the circular arc movement into separate supports by the XY-axis linear guide rails, and makes the high-speed movement of the mechanism more stable. Moreover, the structure is simple and the equipment maintenance is easy. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a driving device of the present invention;

[0019] Figure 2 is Figure 1 The front view structural diagram after removing the transfer motion bracket in

[0020] Figure 3 It is a schematic structural diagram of a cylindrical battery case detection device with a driving device provided by the present invention;

[0021] Figure 4 It is a schematic structural diagram of another driving device with the arrangement of the driving member and the driven member provided by the embodiment of the present invention;

[0022] Figure 5 is Figure 4 The front view structural diagram after removing the transfer motion bracket.

[0023] In the figure:

[0024] 1. Driving member, 11. Driving machine, 12. Output shaft, 2. Support plate, 3. Driving member, 31. Driving swing arm, 32. Follow-up bearing, 4. Driven member, 41. First driven bearing, 42. Second driven bearing, 43. Driven swing arm, 5. Transfer motion bracket, 6. Transfer motion support plate, 61. Bayonet, 7. Flipping member, 8. Detection light source, 9. Linear array camera, 10. Battery case. Detailed Embodiments

[0025] The technical solution of the present invention will be further described below in conjunction with the drawings and through specific embodiments.

[0026] As Figure 1-2 shown, an embodiment provides a driving device, including a driving member 1, a support plate 2, a driving member 3, a driven member 4, a transfer motion bracket 5 and a transfer motion support plate 6. The power output end of the driving member 1 passes through the support plate 2 and is fixedly connected to the driving member 3. The driving member 3 is rotatably connected to the transfer motion bracket 5. The driven member 4 is connected to the support plate 2, and the driven member 4 is rotatably connected to the transfer motion bracket 5. The transfer motion support plate 6 is fixedly arranged on the top of the transfer motion bracket 5, and a plurality of bayonets 61 for receiving the battery case 10 are arranged on the transfer motion support plate 6.

[0027] When the driving device is working, the driving part 1 starts. The driving part 1 drives the moving support bracket 5 and the moving support plate 6 to make a circular motion along the driving part 1 by driving the driving part 3 to rotate. The rotating moving support plate 6 then drives the battery case 10 component in the detection device to make an arc motion, and then transports the battery case 10 backward. When the moving support plate 6 lifts the battery case 10, the bayonet 61 provided on the moving support plate 6 can hold the position of the battery case 10, improving the stability of the battery case 10 during the transportation process. Driven by the driving part 1, the moving support bracket 5 and the moving support plate 6 continuously make a circular motion, continuously driving the battery case 10 to make an arc motion and transporting it backward. The device has a simple structure and can transport the battery case 10 backward at a uniform speed and stably while maintaining a horizontal posture. It not only has high stability but also has the characteristics of simple installation and maintenance.

[0028] Further, the driving part 1 includes a driving machine 11 and an output shaft 12. One end of the output shaft 12 is fixed to the power output end of the driving machine 11; the driving part 3 includes a driving swing arm 31 and a follower bearing 32. One end of the driving swing arm 31 is fixed to the other end of the output shaft 12, the inner ring of the follower bearing 32 is connected to the other end of the driving swing arm 31, and the outer ring of the follower bearing 32 is connected to the moving support bracket 5.

[0029] The driving machine 11 drives the driving swing arm 31 to rotate through the output shaft 12. The driving end of the driving swing arm 31 makes a circular motion around the axis of the output shaft 12, thereby driving the follower end of the driving swing arm 31 to make a circular motion around the output shaft 12. The follower bearing 32 is installed at the follower end of the driving swing arm 31. The moving support bracket 5 also makes a circular motion around the output shaft 12 driven by the follower bearing 32. The radius of the circular motion is equal to the distance between the axis of the output shaft 12 and the axis of the follower bearing 32. The driven part 4 provides the function of fixing and supporting the radial and axial directions of the circular motion of the moving support bracket 5, ensuring the stability of the high-speed circular motion of the moving support bracket 5 and making the lateral transportation of the battery case 10 smoother.

[0030] Further, the driven part 4 includes a driven swing arm 43, a first driven bearing 41, and a second driven bearing 42; one end of the driven swing arm 43 is rotatably connected to the support plate 2 through the first driven bearing 41, and the other end of the driven swing arm 43 is rotatably connected to the moving support bracket 5 through the second driven bearing 42.

[0031] Further, it includes at least one driving member 3 and three driven members 4. The driven members 4 are arranged around the driving member 3, and their quantity and positions are flexibly set according to actual situations. In this embodiment, it includes one driving member 3 and three driven members 4. The three driven members 4 are respectively arranged on both sides and below the driving member 3, and can evenly support the transfer motion bracket 5, enabling the transfer motion bracket 5 to stably perform circular motion and thus stably convey the battery case 10. The rotation centers of any three driven swing arms 43 are not collinear, ensuring that the transfer motion bracket 5 can continuously rotate around the axis, eliminating the dead point, and maintaining a stable horizontal posture.

[0032] In another embodiment of the present invention, as Figure 4-5 shown, the three driven members 4 and one driving member 3 are arranged in a rectangular distribution, and the four components are respectively arranged at the four corner ends of the rectangle, providing uniform and stable support for the transfer motion bracket 5.

[0033] Further, the follower bearing 32 is a cam follower bearing. This avoids mechanical vibration and wear caused by machining precision deviation. The first driven bearing 41 and the second driven bearing 42 are both crossed roller bearings. This is to improve the smoothness of motion and the load-bearing capacity.

[0034] As Figure 3 shown, the present invention also provides a cylindrical battery case detection device, including a flipping member 7, a detection light source 8, a line array camera 9, and a driving device. Two transfer motion pallets 6 are fixedly arranged side by side on the top of the transfer motion bracket 5. The flipping member 7 is arranged between the two transfer motion pallets 6. The detection light source 8 and the line array camera 9 are both arranged above the flipping member 7.

[0035] The driving device drives the transfer moving bracket 5 and then drives the transfer moving pallet 6, enabling the transfer moving pallet 6 to also perform circular motion. The driving device first drives the two transfer moving pallets 6 to lift upward. The bayonet 61 on the transfer moving pallet 6 holds up the cylindrical battery case 10, causing the battery case 10 to leave the current flipping member 7. Then, the transfer moving pallet 6 moves backward with the battery case 10. The transfer moving pallet 6 moves downward and back, placing the cylindrical battery case 10 on the next flipping member 7 station, completing the movement of the cylindrical battery case 10 at one flipping member 7 station. Repeating the above actions can transfer the cylindrical battery case 10 to the next station one by one. When the cylindrical battery case 10 moves to the detection position, the flipping member 7 drives the cylindrical battery case 10 to perform a rotational motion. At this time, the line array camera 9 continuously captures images of the arc surface of the cylindrical battery case 10. After the cylindrical battery case 10 rotates 360 degrees or more, the line array camera 9 can obtain a complete unfolded image of the outer cylindrical surface of the cylindrical battery case 10 and transmit it to the computer in the background for image processing and judgment. According to the actual detection needs, multiple line array cameras 9 can be set. Line array cameras 9 are arranged above multiple flipping members 7. Setting multiple line array cameras 9 can, on the one hand, improve the detection efficiency by detecting multiple battery cases 10 simultaneously, and on the other hand, can also adopt a multiple detection mode to detect the same battery case 10 multiple times, improving the accuracy of the detection results.

[0036] Further, a bayonet 61 is provided on the transfer moving pallet 6. The provided bayonet 61 can hold and lift the battery case 10, preventing the battery case 10 from shifting during movement and improving the reliability of transportation.

[0037] Further, multiple flipping members 7 are arranged in sequence along the extending direction of the transfer moving pallet 6. Two transfer moving pallets 6 are arranged side by side with a channel left between them. Multiple flipping members 7 are arranged horizontally in a straight line along this channel. The flipping member 7 is a flipping roller that can support the battery case 10 and can also flip the supported battery case 10 through its own rotation, enabling the outer side of the battery case 10 to be completely photographed and detected by the line array camera 9.

[0038] Other technologies in this embodiment adopt existing technologies.

[0039] This invention is described through preferred embodiments. Those skilled in the art know that without departing from the spirit and scope of this invention, various changes or equivalent replacements can be made to these features and embodiments. This invention is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application belong to the scope of protection of this invention.

Claims

1. A driving device, characterized in that: The invention comprises a driving member (1), a support plate (2), an active member (3), a driven member (4), a transfer motion bracket (5) and a transfer motion support plate (6), wherein the power output end of the driving member (1) passes through the support plate (2) and is fixedly connected to the active member (3), the active member (3) is rotationally connected to the transfer motion bracket (5), the driven member (4) is connected to the support plate (2), the driven member (4) is rotationally connected to the transfer motion bracket (5), the transfer motion support plate (6) is fixed to the top of the transfer motion bracket (5), and a plurality of bayonet holes (61) for receiving battery shells (10) are provided on the transfer motion bracket (6); The driving member (1) comprises a driving machine (11) and an output shaft (12), wherein one end of the output shaft (12) is fixed to a power output end of the driving machine (11); The active component (3) comprises an active swing arm (31) and a follower bearing (32), one end of the active swing arm (31) is fixed to the other end of the output shaft (12), the inner ring of the follower bearing (32) is connected to the other end of the active swing arm (31), and the outer ring of the follower bearing (32) is connected to the transfer motion bracket (5); The driven member (4) comprises a driven swing arm (43), a first driven bearing (41) and a second driven bearing (42); One end of the driven swing arm (43) is rotatably connected to the support plate (2) via a first driven bearing (41), and the other end of the driven swing arm (43) is rotatably connected to the transfer motion bracket (5) via a second driven bearing (42); It comprises at least one active member (3) and three driven members (4).

2. A driving device according to claim 1, characterized in that: The rotation centers of any three of the driven swing arms (43) are not collinear with each other.

3. A driving device according to claim 1, characterized in that: The follower bearing (32) is a cam bearing follower.

4. A driving device according to claim 1, characterized in that: The first driven bearing (41) and the second driven bearing (42) are both cross roller bearings.

5. A cylindrical battery shell detection device, characterized in that: It comprises a flip member (7), a detection light source (8), a linear array camera (9), and the driving device according to any one of claims 1 to 4, The two transfer motion pallets (6) are fixed side by side on the top of the transfer motion bracket (5), the flip member (7) is arranged between the two transfer motion pallets (6), and the detection light source (8) and the linear array camera (9) are both arranged above the flip member (7).

6. A cylindrical battery shell detection device according to claim 5, characterized in that: The plurality of flipping members (7) are arranged in sequence along the extension direction of the transfer motion pallet (6).

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