Driving device and cylindrical battery shell detection equipment

Abstract

The invention discloses a driving device and cylindrical battery case detection equipment, and belongs to the field of battery case detection devices.The driving device comprises a driving part, a supporting plate, a driving part, a driven part, a transfer movement support and a transfer movement supporting plate. The cylindrical battery shell detection equipment comprises an overturning piece, a detection light source, a linear array camera and a driving device, a transfer movement supporting plate is fixed to the top of a transfer movement support, and the detection light source and the linear array camera are both arranged above the overturning piece. The driving device and the driving part are used for driving the transferring movement support to do circular movement around the driving part, meanwhile, the horizontal posture is kept unchanged, stability can be kept under high-speed movement, and the stability of battery shell conveying is improved. According to the cylindrical battery shell detection equipment, the transfer motion supporting plate achieves multi-station simultaneous continuous transfer through the driving device, it is ensured that the detection process is orderly and efficient, the equipment is particularly suitable for a batch detection scene, and the detection efficiency is remarkably improved.

Description

Technical Field

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

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

[0003] CN217349628U discloses a steel shell transfer and flipping device, which realizes the rise, translation, descent and reset of the toothed card plate through the synergistic effect of the lifting cam and the translation cam, thereby pushing the steel shell forward step by step along the feed guide rail. This transmission structure includes multiple components such as the lifting cam, the translation cam, and the toothed card plate. It has a complex structure and is difficult to install and debug. After long-term use, the wear of the cam may cause the mechanism to fail, and the maintenance and replacement costs are high. In addition, the movement of the mechanism is intermittent, and the toothed card plate needs to complete the four steps of rising, translating, descending and resetting to push the steel shell forward once. This discontinuous movement mode results in low transmission efficiency and cannot meet the needs of rapid and continuous detection. Summary of the invention

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

[0005] To achieve this object, the present invention adopts the following technical solutions: The present invention provides a driving device, including a driving member, a support plate, an active member, a driven member, a transfer motion bracket and a transfer motion pallet, the power output end of the driving member is fixedly connected to the active member through the support plate, the active member is rotatably connected to the transfer motion bracket, the driven member is connected to the support plate, the driven member is rotatably connected to the transfer motion bracket, the transfer motion pallet is fixed to the top of the transfer motion bracket, and a plurality of snap-ons for receiving battery shells are provided on the transfer motion pallet.

[0006] In a preferred technical solution of the present invention, the driving member includes a driving motor and an output shaft, one end of the output shaft is fixed to the power output end of the driving motor; the active member includes an active swing arm and a follower bearing, one end of the active 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 active swing arm, and the outer ring of the follower bearing is connected to the transfer motion bracket.

[0007] In a preferred technical solution of the present invention, the follower 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.

[0008] In a preferred technical solution of the present invention, it includes at least one active member and three driven members.

[0009] In a preferred technical solution of the present invention, the rotation centers of any three driven swing arms are not collinear.

[0010] 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 cross roller bearings.

[0011] The present invention also provides a cylindrical battery shell detection device, including a flipping piece, a detection light source, a linear array camera and a driving device, wherein the two transfer motion pallets are fixed side by side on the top of the transfer motion bracket, the flipping piece is arranged between the two transfer motion pallets, and the detection light source and the linear array camera are both arranged above the flipping piece.

[0012] In a preferred technical solution of the present invention, a plurality of the flipping members are arranged in sequence along the extension direction of the transfer motion pallet.

[0013] The beneficial effects of the present invention are: The present invention provides a driving device, which drives the transfer motion bracket to perform circular motion around the driving member through the driving device and the active member, while maintaining a horizontal posture unchanged, and can maintain stability under high-speed motion, thereby improving the stability of transporting battery shells. The transfer motion bracket can continuously rotate around the axis to achieve uninterrupted cyclic transportation, and has high stability and high load-bearing capacity.

[0014] The cylindrical battery shell inspection equipment provided by the present invention has a transfer motion pallet that realizes simultaneous and continuous transfer of multiple stations through a driving device, ensuring the orderliness and efficiency of the inspection process. It is particularly suitable for batch inspection scenarios and significantly improves inspection efficiency.

[0015] This device gets rid of the dependence on linear guide rails, thus realizing reliable support for high-speed motion of XY axis, avoiding the vibration and wear problems caused by splitting the circular motion into XY axis linear guide rails for separate support, making the high-speed motion of the mechanism more stable. It also has a simple structure and simple equipment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a driving device of the present invention; Figure 2 for Figure 1 Schematic diagram of the main structure after removing the transfer motion bracket Figure 3 A schematic structural diagram of a cylindrical battery shell detection device with a driving device provided by the present invention; Figure 4 A schematic diagram of the structure of a driving device with another arrangement of active members and driven members provided by an embodiment of the present invention; Figure 5 for Figure 4 Schematic diagram of the main structure after removing the transfer motion bracket.

[0017] In the figure: 1. Driving member, 11. Driving machine, 12. Output shaft, 2. Support plate, 3. Active member, 31. Active swing arm, 32. Follower bearing, 4. Follower member, 41. First follower bearing, 42. Second follower bearing, 43. Follower swing arm, 5. Transfer motion bracket, 6. Transfer motion support plate, 61. Mount, 7. Flip member, 8. Detection light source, 9. Linear array camera, 10. Battery case. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0019] like Figure 1-2 As shown, a driving device is provided in the embodiment, including 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, 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 rotatably connected to the transfer motion bracket 5, the driven member 4 is connected to the support plate 2, the driven member 4 is rotatably 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 61 for receiving the battery shell 10 are provided on the transfer motion support plate 6.

[0020] When the driving device is working, the driving member 1 is started, and the driving member 1 drives the active member 3 to rotate, thereby driving the transfer motion bracket 5 and the transfer motion pallet 6 to make circular motion along the driving member 1. The rotating transfer motion pallet 6 then drives the battery shell 10 component in the detection device to make circular motion, thereby transferring the battery shell 10 backward. When the transfer motion pallet 6 lifts the battery shell 10, the bayonet 61 provided on the transfer motion pallet 6 can hold the position of the battery shell 10, thereby improving the stability of the battery shell 10 during the transfer process. Driven by the driving member 1, the transfer motion bracket 5 and the transfer motion pallet 6 continuously make circular motion, continuously driving the battery shell 10 to make circular motion and transport backward. The device has a simple structure, can maintain a horizontal posture and transfer the battery shell 10 backward at a uniform and stable speed, and is not only highly stable, but also easy to install and maintain.

[0021] Furthermore, the driving member 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 active member 3 includes 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.

[0022] The driving machine 11 drives the active swing arm 31 to rotate through the output shaft 12, and the driving end of the active swing arm 31 performs circular motion around the axis of the output shaft 12, thereby driving the follower end of the active swing arm 31 to perform circular motion around the output shaft 12. The follower bearing 32 is installed at the follower end of the active swing arm 31, and the transfer motion bracket 5 also performs 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 follower 4 provides a fixing and supporting function for the radial and axial directions of the circular motion of the transfer motion bracket 5, ensuring the stability of the high-speed circular motion of the transfer motion bracket 5. Make the lateral transportation of the battery shell 10 more stable.

[0023] Furthermore, the follower 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 transfer motion bracket 5 through the second driven bearing 42.

[0024] Furthermore, at least one active member 3 and three driven members 4 are included. The driven members 4 are arranged around the active member 3, and their number and position are flexibly set according to actual conditions. In this embodiment, one active member 3 and three driven members 4 are included, and the three driven members 4 are respectively arranged on both sides and below the active member 3, which can evenly support the transfer motion bracket 5, so that the transfer motion bracket 5 can stably perform circular motion and thus stably transport the battery shell 10. The rotation centers of any three driven swing arms 43 are not collinear with each other, ensuring that the transfer motion bracket 5 can continuously rotate around the axis, eliminate dead points, and maintain a stable horizontal posture.

[0025] In another embodiment of the present invention, Figure 4-5 As shown, three driven members 4 and one active member 3 are arranged in a rectangular distribution, and the four members are respectively arranged at the four end corners of the rectangle to provide uniform and stable support for the transfer motion bracket 5.

[0026] Furthermore, the follower bearing 32 is a cam bearing follower, which avoids mechanical vibration and wear caused by machining accuracy deviation. The first follower bearing 41 and the second follower bearing 42 are both cross roller bearings, which improves the stability of movement and load-bearing capacity.

[0027] like Figure 3 As shown, the present invention also provides a cylindrical battery shell detection device, including a flip member 7, a detection light source 8, a linear array camera 9 and a driving device, 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.

[0028] The driving device drives the transfer motion bracket 5 and then drives the transfer motion pallet 6, so that the transfer motion pallet 6 can also make a circular motion. The driving device first drives the two transfer motion pallets 6 to lift up, and the bayonet 61 on the transfer motion pallet 6 lifts the cylindrical battery shell 10, so that the battery shell 10 leaves the current flip part 7, and then the transfer motion pallet 6 moves backward with the battery shell 10, and the transfer motion pallet 6 moves down and back, and puts the cylindrical battery shell 10 on the next flip part 7 station, completing the movement of a flip part 7 station of the battery shell 10. Repeat the above actions to move the cylindrical battery shell 10 backwards one by one. When the cylindrical battery shell 10 moves to the detection position, the flip part 7 rotates with the cylindrical battery shell 10. At this time, the linear array camera 9 continuously collects images of the arc surface of the cylindrical battery shell 10. When the cylindrical battery shell 10 rotates 360 degrees or more, the linear array camera 9 can obtain a complete unfolded image of the outer cylindrical surface of the cylindrical battery shell 10, and transmit it to the background computer for image processing and judgment. According to the actual detection needs, the linear array camera 9 can be set to multiple, and the linear array camera 9 is set above multiple flip parts 7. Setting multiple linear array cameras 9 can improve the detection efficiency on the one hand, and detect multiple battery shells 10 at the same time. On the other hand, multiple detection modes can also be used to perform multiple detections on the same battery shell 10 to improve the accuracy of the detection results.

[0029] Furthermore, a bayonet 61 is provided on the transfer motion pallet 6. The bayonet 61 can hold the battery shell 10 and lift it upward, thereby preventing the battery shell 10 from shifting during movement and improving the reliability of transportation.

[0030] Furthermore, a plurality of flipping members 7 are arranged in sequence along the extension direction of the transfer motion pallet 6. Two transfer motion pallets 6 are arranged side by side, and a channel is left between them. A plurality of flipping members 7 are arranged horizontally and linearly along the channel. The flipping member 7 is a flipping roller, which can support the battery shell 10 and can also flip the supported battery shell 10 by rotating itself, so that the outer side of the battery shell 10 can be completely photographed and detected by the linear array camera 9.

[0031] Other technologies of this embodiment adopt existing technologies.

[0032] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present 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 arranged on the transfer motion bracket (6).

2. A driving device according to claim 1, characterized in that: 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).

3. A driving device according to claim 1, characterized in that: 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).

4. A driving device according to claim 1, characterized in that: It comprises at least one active member (3) and three driven members (4).

5. A driving device according to claim 3, characterized in that: The rotation centers of any three of the driven swing arms (43) are not collinear with each other.

6. A driving device according to claim 2, characterized in that: The follower bearing (32) is a cam bearing follower.

7. A driving device according to claim 3, characterized in that: The first driven bearing (41) and the second driven bearing (42) are both cross roller bearings.

8. A cylindrical battery shell detection device, characterized in that: It comprises a flipping member (7), a detection light source (8), a linear array camera (9), and the driving device according to any one of claims 1 to 7, 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).

9. A cylindrical battery shell detection device according to claim 8, 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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