A battery core rotation detection fixture

Abstract

The present invention discloses a battery cell rotation detection jig, comprising: a support frame, on which a plurality of bottom bearings are provided; a plurality of rotating shafts, the top of each rotating shaft respectively passing through the inner ring of each bottom bearing and connected to the inner ring of each bottom bearing; a plurality of bottom cylinders, the top side of each bottom cylinder is open to accommodate and fix the bottom end of the battery cell, the bottom side of each bottom cylinder respectively corresponds to the top of each rotating shaft and is fixedly connected, and the bottom cylinder can be rotated by the rotating shaft connected thereto. When the battery cell rotation detection jig provided by the present invention is used for battery cell detection, the plurality of rotating shafts can be respectively connected to a plurality of external drive devices to respectively adjust the detection angle of each battery cell, thereby avoiding dead angles during battery cell detection, and there is no need to manually grab the battery cell to adjust the battery cell detection angle, thereby improving the efficiency of battery cell detection compared to existing tray jigs.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery manufacturing, and in particular to a battery core rotation detection jig. Background Art

[0002] As the demand for lithium batteries continues to expand, the terminal application market has increasingly higher requirements for lithium battery quality. Current terminal applications have increasingly stringent requirements for lithium battery consistency. The issued lithium battery industry standards also place requirements on the consistency and safety of battery cells. Generally, when performing X-ray inspection (X-ray testing) on ​​cylindrical batteries, a single-tray single-cell fixture or a single-tray dual-cell fixture connected to a drive device is generally used for inspection. A rotating shaft is provided at the bottom of the single tray. When inspecting a single-tray single-cell fixture, the drive device drives a rotating shaft to rotate, causing the entire fixture to rotate for X-ray scanning inspection. When inspecting a single-tray dual-cell fixture, the drive device and a rotating shaft are also used to drive the single tray to rotate. As a result, only the portion other than the opposite sides of the two cells can be inspected. The opposite sides of the two cells can only be inspected by manually rotating the cells at an angle, which greatly reduces inspection efficiency.

[0003] Therefore existing technology still needs to be improved and improved. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a battery cell rotation detection jig, which aims to solve the problem of low detection efficiency in the prior art when detecting a single-tray dual-cell jig because a single rotating shaft and a single tray drive the dual cells to rotate.

[0005] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0006] In a first aspect, an embodiment of the present invention provides a battery cell rotation detection jig, comprising:

[0007] A support frame, wherein a plurality of bottom bearings are provided on the support frame;

[0008] A plurality of rotating shafts, wherein the top of each rotating shaft passes through the inner ring of each bottom bearing and is connected to the inner ring of each bottom bearing;

[0009] Multiple bottom cylinders, the top side of each bottom cylinder is open to accommodate and fix the bottom end of the battery cell, the bottom side of each bottom cylinder corresponds to the top end of each rotating shaft and is fixedly connected thereto, and the bottom cylinder can be rotated by the rotating shaft connected thereto.

[0010] As a further improved technical solution, the above-mentioned battery cell rotation detection fixture further includes:

[0011] Top plate and top cylinder; the top plate can be lifted and lowered on the support frame, and a plurality of top bearings are provided on the top plate, the inner ring of each top bearing corresponds to the top side of the top cylinder one by one and is fixedly connected, and the bottom side of each top cylinder is open to accommodate and fix the top end of the battery cell, and the opening of each top cylinder is opposite to the opening of each bottom cylinder one by one.

[0012] As a further improved technical solution, the support frame includes a base plate and two support rods, the two ends of the base plate are respectively fixedly connected to the two support rods and the base plate is arranged in a horizontal direction, each bottom bearing is respectively detachably arranged on the base plate, the two ends of the top plate are respectively connected to the two support rods and can be raised and lowered on the support rods, and the top plate is arranged in a horizontal direction and located above the base plate.

[0013] As a further improved technical solution, both ends of the top plate are provided with sleeve holes, and the two ends of the top plate are respectively mounted on the two support rods through the sleeve holes, and the two support rods are respectively provided with a first limiting ring, which is detachably fixed on the support rod and abuts against the bottom side of the top plate.

[0014] As a further improved technical solution, the support rod is also provided with a sleeve, which passes through the end of the base plate and is fixedly connected to the base plate, the support rod passes through the sleeve and is movably arranged in the sleeve, and the support rod is provided with a detachable second limiting ring, the second limiting ring is fixedly connected to the support rod and abuts against the top end face of the sleeve, the bottom end of the support rod is fixedly provided with a third limiting ring, an elastic member is provided between the third limiting ring and the bottom end face of the sleeve, the elastic member is sleeved on the support rod, and the two end faces of the elastic member abut against the third limiting ring and the bottom end face of the sleeve respectively, and the first limiting ring is fixedly connected to the top plate.

[0015] As a further improved technical solution, a connecting plate is provided on the side periphery of the sleeve, and the connecting plate is abutted against the top side of the base plate and connected with screws.

[0016] As a further improved technical solution, a baffle is further sleeved on the support rod, the top side of the baffle abuts against the bottom end surface of the sleeve, and the bottom side of the baffle abuts against the top end of the elastic member.

[0017] As a further improved technical solution, a boss is provided at the top of each rotating shaft, the bottom end face of the boss abuts the top side of the inner ring of the bottom bearing, the top end face of the boss is connected to the bottom side of the bottom cylinder, and a fourth limiting ring is also provided on the rotating shaft, the fourth limiting ring is fixedly connected to the rotating shaft and the top side of the fourth limiting ring abuts the bottom side of the inner ring of the bottom bearing.

[0018] As a further improved technical solution, a joint is provided at the bottom end of each rotating shaft, and the joint is used to connect to the driving device.

[0019] As a further improved technical solution, a limiting rod is further provided on the support rod, one end of the limiting rod is detachably arranged in the support rod, and the other end of the limiting rod abuts against the top side of the second limiting ring.

[0020] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0021] An embodiment of the present invention provides a battery cell rotation detection jig, comprising: a support frame, on which a plurality of bottom bearings are provided; a plurality of rotating shafts, the top of each rotating shaft respectively passing through the inner ring of each bottom bearing and connected to the inner ring of each bottom bearing; a plurality of bottom cylinders, the top side of each bottom cylinder being open to accommodate and fix the bottom end of the battery cell, the bottom side of each bottom cylinder corresponding to and fixedly connected to the top of each rotating shaft, and the bottom cylinder being rotatable by the rotating shaft connected thereto. In the present invention, a plurality of batteries can be respectively loaded into each bottom cylinder for fixation, and each bottom cylinder can be driven to rotate by the rotating shaft connected thereto, so that the battery can adjust the detection angle by the rotating shaft. After the rotating shaft is connected to an external driving device, the battery can be driven to rotate by the driving device. Therefore, when the battery cell rotation detection jig provided by the present invention is used for battery cell detection, the plurality of rotating shafts can be respectively connected to a plurality of external driving devices to adjust the detection angle of each battery cell respectively, avoiding blind spots during battery cell detection, and eliminating the need for manual grasping of the battery cell to adjust the battery cell detection angle, thereby improving the efficiency of battery cell detection compared to existing tray jigs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front structure of a battery core rotation detection fixture provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the first structure after the top plate, top cylinder and top bearing are assembled in the present invention;

[0024] Figure 3 This is a schematic diagram of a second structure after the top plate, top cylinder and top bearing are assembled in the present invention;

[0025] Figure 4 Schematic diagram of the three-dimensional structure of the support frame in the present invention;

[0026] Figure 5 Schematic diagram of the three-dimensional structure of the sleeve in the present invention;

[0027] Figure 6It is a schematic diagram of the connection structure of the rotating shaft, bottom bearing, fourth limiting ring and joint in the present invention.

[0028] In the figure: 1. support frame; 101. bottom plate; 102. support rod; 2. bottom bearing; 3. rotating shaft; 301. boss; 4. bottom cylinder; 5. battery cell; 6. top plate; 601. sleeve hole; 7. top cylinder; 8. top bearing; 9. first limiting ring; 10. sleeve; 1001. connecting plate; 11. second limiting ring; 12. third limiting ring; 13. elastic member; 14. baffle; 15. gasket; 16. fourth limiting ring; 17. joint; 18. limiting rod; 19. scale line. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] Example:

[0031] like Figures 1-6 As shown, the battery cell rotation detection fixture includes: a support frame 1, on which a plurality of bottom bearings 2 are provided; a plurality of rotating shafts 3, the top of each rotating shaft 3 respectively passes through the inner ring of each bottom bearing 2 and is connected to the inner ring of each bottom bearing 2; a plurality of bottom cylinders 4, the top side of each bottom cylinder 4 is open to accommodate and fix the bottom end of the battery cell 5, the bottom side of each bottom cylinder 4 corresponds to the top of each rotating shaft 3 one by one and is fixedly connected, and the bottom cylinder 4 can be rotated by the rotating shaft 3 connected thereto.

[0032] like Figure 1As shown, in this embodiment, the battery core rotating fixture includes a support frame 1, a bottom bearing 2, a rotating shaft 3 and a bottom cylinder 4; wherein, there are multiple bottom bearings 2, and each bottom bearing 2 is evenly spaced in a row along the horizontal direction on the support frame 1, and there are multiple rotating shafts 3 and each corresponds to each bottom bearing 2 one by one, and each rotating shaft 3 passes through the inner ring of each bottom bearing 2 and is connected to its inner ring. The rotating shaft 3 and the inner ring of the bottom bearing 2 can be abutted or fixedly connected (by screw connection or welding), and the top end face of each rotating shaft 3 is respectively provided with a bottom cylinder 4, and the top side of each bottom cylinder 4 is opened to accommodate and fix the bottom end of the battery core 5, and the top end face of each rotating shaft 3 is respectively connected to the bottom side of each bottom cylinder 4 by screws. In this embodiment, each rotating shaft 3 is positioned on the support frame 1 through each bottom bearing 2, and can be rotated by connecting with the inner ring of the bottom bearing 2. When the rotating shaft 3 rotates, the inner ring of the bottom bearing 2 and the bottom cylinder 4 connected to the rotating shaft 3 will rotate with the rotating shaft 3, and the battery cell 5 fixed in the bottom cylinder 4 will also rotate. At the same time, the inner side wall of the opening of the bottom cylinder 4 in this embodiment is also provided with an elastic cushion layer (not shown). The elastic cushion layer covers the inner side wall of the opening of the bottom cylinder 4 and is used to press against the battery cell 5 while protecting the bottom of the battery cell 5. The elastic cushion layer can be any one of a rubber layer, a foam layer or a sponge layer. In the present invention, multiple batteries can be respectively loaded into each bottom cylinder 4 and fixed, and each bottom cylinder 4 can be driven to rotate by the rotating shaft 3 connected thereto, so that the battery can adjust the detection angle through the rotating shaft 3. After the rotating shaft 3 is connected to an external driving device, the battery can be driven to rotate by the driving device. Therefore, when the battery cell rotation detection jig provided by the present invention is used for battery cell 5 detection, multiple rotating shafts 3 can be respectively connected to multiple external driving devices to adjust the detection angle of each battery cell 5 respectively, so as to avoid dead angles when the battery cell 5 is detected, and there is no need to manually grasp the battery cell 5 to adjust the detection angle of the battery cell 5. Compared with the existing tray jig, the detection efficiency of the battery cell 5 is improved; at the same time, by adjusting the detection angle of a single battery cell 5 through a single rotating shaft 3, the detection dead angle of the battery cell 5 can be avoided.

[0033] like Figure 2 and Figure 3As shown, as a further solution, the battery cell rotation detection jig further includes a top plate 6 and a top cylinder 7; the top plate 6 can be lifted and lowered on the support frame 1, and a plurality of top bearings 8 are provided on the top plate 6, and the inner ring of each top bearing 8 corresponds to the top side of the top cylinder 7 one by one and is fixedly connected, and the bottom side of each top cylinder 7 is open to accommodate and fix the top end of the battery cell 5, and the opening of each top cylinder 7 is opposite to the opening of each bottom cylinder 4 one by one. Specifically, the top is liftably arranged on the support frame 1, so that the battery cell rotation detection jig provided by the present invention can be applicable to various types of battery cells 5. The top cylinder 7 arranged on the top plate 6 is positioned by the top bearing 8, and is respectively opposite to each bottom cylinder 4, that is, the bottom side opening of a top cylinder 7 corresponds to the top side opening of a bottom cylinder 4, and is used to fix a battery cell 5 together. Each top cylinder 7 can be rotated by the inner ring of the top bearing 8 connected thereto. The inner side wall of the opening of each top cylinder 7 is also provided with the elastic pad layer, which covers the inner side wall of the opening of the top cylinder 7 and is used to press against the battery cell 5 while protecting the bottom of the battery cell 5. The elastic pad layer can be any one of a rubber layer, a foam layer or a sponge layer.

[0034] like Figure 4 As shown, as a further solution, the support frame 1 includes a base plate 101 and two support rods 102, the two ends of the base plate 101 are respectively fixedly connected to the two support rods 102 and the base plate 101 is arranged in a horizontal direction, and each bottom bearing 2 is detachably arranged on the base plate 101, the two ends of the top plate 6 are respectively connected to the two support rods 102 and can be raised and lowered on the support rods 102, and the top plate 6 is arranged in a horizontal direction and located above the base plate 101. Specifically, the two support rods 102 are arranged opposite to each other in the vertical direction and the upper and lower ends are flush, the two ends of the bottom plate 101 are respectively fixed on the two support rods 102 and the bottom plate 101 remains horizontal, and along the length direction of the bottom plate 101, the bottom bearings 2 are evenly spaced and arranged in a row on the bottom plate 101, and the two ends of the top are respectively connected to the two support rods 102 and can be raised and lowered on the support rods 102, and the top plate 6 is located directly above the bottom plate 101 and is arranged opposite to each other; at the same time, along the length direction of the support rods 102, the tops of the two support rods 102 are respectively provided with scale lines 19, and the scale lines 19 can make the top plate 6 remain horizontal after the lifting and adjustment, and the top plate 6 that remains horizontal can make the top cylinder 7 better fix the battery cell 5.

[0035] In this embodiment, both ends of the top plate 6 are provided with a sleeve hole 601, and the two ends of the top plate 6 are respectively sleeved on the two support rods 102 through the sleeve holes 601, and the two support rods 102 are respectively provided with a first limiting ring 9, which is detachably fixed on the support rod 102 and abuts against the bottom side of the top plate 6. Specifically, the first limiting ring 9 is in a circular shape and can be deformed after being subjected to force. The first limiting ring 9 is sleeved on the support rod 102 and abuts the bottom side of the top plate 6. The first limiting ring 9 is provided with a horizontal screw hole and a vertical screw hole. After installing a screw in the horizontal screw hole of the first limiting ring 9, the first limiting ring 9 can be locked on the support rod 102 for fixation, and the screw in its vertical screw hole is used to lock and fix the first limiting ring 9 and the top plate 6. The top plate 6 can be fixed to the support rod 102 by the first limiting ring 9 and has a lifting function. When the height of the top plate 6 needs to be adjusted, just loosen the screw in the horizontal screw hole of the first limiting ring 9. When it is adjusted to the required height, retighten the screw in the horizontal screw hole of the first limiting ring 9.

[0036] like Figure 4As shown, as a further solution, the support rod 102 is further provided with a sleeve 10, which passes through the end of the base plate 101 and is fixedly connected to the base plate 101, the support rod 102 passes through the sleeve 10 and is movably arranged in the sleeve 10, and a detachable second limiting ring 11 is provided on the support rod 102, the second limiting ring 11 is fixedly connected to the support rod 102 and abuts against the top end face of the sleeve 10, and a third limiting ring 12 is fixedly provided at the bottom end of the support rod 102, and an elastic member 13 is provided between the third limiting ring 12 and the bottom end face of the sleeve 10, the elastic member 13 is sleeved on the support rod 102, and the end faces of both ends of the elastic member 13 abut against the third limiting ring 12 and the bottom end face of the sleeve 10 respectively, and the first limiting ring 9 is fixedly connected to the top plate 6. Specifically, the sleeve 10 passes through the base plate 101, and the top end of the sleeve 10 is located above the base plate 101, and the bottom end of the sleeve 10 is located below the base plate 101. The support rod 102 passes through the sleeve 10 and does not contact the inner wall of the sleeve 10. The second limiting ring 11 is circular and can be deformed after being subjected to force. A transverse screw hole is provided on the second limiting ring 11. The second limiting ring 11 is sleeved on the support rod 102 and is fixedly connected to the support rod 102 after being tightened by the screws in the transverse screw hole. At the same time, the bottom side of the second limiting ring 11 abuts against the top end face of the sleeve 10 to prevent the support rod 102 from falling under the action of gravity, and plays a supporting and limiting role for the support rod 102. The third limiting ring 12 set at the bottom end of the support rod 102 is used to limit the bottom end face of the sleeve 10 in conjunction with the elastic member 13. The third limiting ring 12 is also provided with a transverse screw hole. After the third limiting ring 12 is sleeved on the bottom end of the support rod 102, it can be locked on the support rod 102 through the screw in the transverse screw hole. In this embodiment, the elastic member 13 is a spring. Since the bottom end of the spring exerts a downward elastic force on the third limiting ring 12, the elastic member 13 presses down the top plate 6, so that the top cylinder 7 is tightly pressed on the battery cell 5 and can drive the battery cell 5 to rotate together; when the battery cell 5 needs to be replaced, the top plate 6 can also be lifted upward. At this time, the top plate 6 drives the support rod 102 to move upward, and the third limiting ring 12 on the support rod 102 moves upward and compresses the spring. When the top plate 6 is lifted to a certain height, the top cylinder 7 and the battery cell 5 are pulled apart to a certain height, which makes it convenient to take out the battery cell 5 for replacement.

[0037] like Figure 5 As shown, as a further solution, a connecting plate 1001 is provided on the side of the sleeve 10 , and the connecting plate 1001 abuts against the top side of the bottom plate 101 and is connected by screws, and the sleeve 10 is detachable on the bottom plate 101 .

[0038] In this embodiment, a baffle 14 is also sleeved on the support rod 102. The top side of the baffle 14 abuts the bottom end surface of the sleeve 10, and the bottom side of the baffle 14 abuts the top end surface of the elastic member 13. Specifically, the baffle 14 is a rubber sheet that is used to cushion between the spring and the sleeve 10 to prevent the spring from wearing the top end surface and the bottom end surface of the sleeve 10 during repeated deformation. At the same time, a gasket 15 is also provided on the support rod 102. The bottom side of the gasket 15 abuts the top end surface of the sleeve 10, and the top side of the gasket 15 abuts the bottom side of the second limiting ring 11. The gasket 15 is a rubber sheet that can be used to prevent collision between the second limiting ring 11 and the sleeve 10 when the support rod 102 falls, thereby protecting the second limiting ring 11 and the sleeve 10.

[0039] As a further solution, each rotating shaft 3 is provided with a boss 301 at its top end. The bottom end surface of the boss 301 abuts the top side of the inner ring of the bottom bearing 2. The top end surface of the boss 301 is connected to the bottom side of the bottom cylinder 4. The rotating shaft 3 is also provided with a fourth retaining ring 16, which is fixedly connected to the rotating shaft 3 and has its top side abut the bottom side of the inner ring of the bottom bearing 2. Specifically, the rotating shaft 3 is clamped at both ends of the inner ring of the bottom bearing 2 by the boss 301 and the fourth retaining ring 16, thereby preventing the rotating shaft 3 from moving up and down. This acts as a retaining force on the rotating shaft 3, ensuring smoother rotation of the battery cell 5. The fourth retaining ring 16 is sleeved onto the rotating shaft 3 and secured to the rotating shaft 3 by screws. Once the screws are removed, the fourth retaining ring 16 can be removed from the rotating shaft 3. The rotating shaft 3 can then be lifted upward to be removed from the bottom bearing 2.

[0040] As a further solution, the bottom end of each rotating shaft 3 is provided with a joint 17, which is used to connect to the driving device. The side of the joint 17 is provided with a screw hole, and the joint 17 is fixed to the rotating shaft 3 by the cooperation of the screw and the screw hole.

[0041] In this embodiment, a limiting rod 18 is further provided on the support rod 102. One end of the limiting rod 18 is detachably disposed within the support rod 102, and the other end of the limiting rod 18 abuts against the top side of the second limiting ring 11. Specifically, the limiting rod 18 is horizontally disposed on the support rod 102, and after being fixed to the support rod 102, the limiting rod 18 can also limit the second limiting ring 11. Because when the top plate 6 is lifted and then released, the support rod 102 will fall rapidly under the action of the spring. At this time, the second limiting ring 11 will collide with the gasket 15 or the sleeve 10. After receiving the reaction force, the second limiting ring 11 will tend to move upward. If the second limiting ring 11 moves upward, the overall height of the support rod 102 is reduced, causing the distance between the top cylinder 7 and the bottom cylinder 4 to be shortened, resulting in the inability to accommodate the battery cell 5 of the model that could be accommodated before. Therefore, after the limiting rod 18 presses the second limiting ring 11, the stability of the overall structure can be ensured.

[0042] In summary, an embodiment of the present invention provides a battery cell rotation detection jig, comprising: a support frame 1, on which a plurality of bottom bearings 2 are provided; a plurality of rotating shafts 3, the top of each of the rotating shafts 3 respectively passing through the inner ring of each of the bottom bearings 2 and connected to the inner ring of each of the bottom bearings 2; a plurality of bottom cylinders 4, the top side of each of the bottom cylinders 4 is open to accommodate and fix the bottom end of the battery cell 5, the bottom side of each of the bottom cylinders 4 corresponds one-to-one to the top of each of the rotating shafts 3 and is fixedly connected, and the bottom cylinder 4 can be rotated by the rotating shaft 3 connected thereto. In the present invention, multiple batteries can be respectively loaded into each bottom cylinder 4 and fixed. Each bottom cylinder 4 can be driven to rotate by the rotating shaft 3 connected thereto, so that the battery can adjust the detection angle through the rotating shaft 3. After the rotating shaft 3 is connected to an external driving device, the battery can be driven to rotate by the driving device. Therefore, when the battery cell rotation detection jig provided by the present invention is used for battery cell 5 detection, multiple rotating shafts 3 can be respectively connected to multiple external driving devices to adjust the detection angle of each battery cell 5 respectively, avoiding dead angles when detecting the battery cell 5, and there is no need to manually grasp the battery cell 5 to adjust the detection angle of the battery cell 5. Compared with the existing tray jig, the battery cell 5 detection efficiency is improved.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0048] Of course, the description of the above embodiments of the present invention is relatively detailed, but it cannot be understood as limiting the scope of protection of the present invention. The present invention can also have many other implementation methods. Based on this implementation method, other implementation methods obtained by ordinary technicians in this field without making any creative work are all within the scope of protection of the present invention. The scope of protection of the present invention shall be based on the attached claims.

Claims

1. A battery core rotation detection fixture, characterized in that: include: A support frame, wherein a plurality of bottom bearings are provided on the support frame; A plurality of rotating shafts, wherein the top of each rotating shaft passes through the inner ring of each bottom bearing and is connected to the inner ring of each bottom bearing; A plurality of bottom cylinders, each having an opening on the top side thereof to accommodate and fix the bottom end of the battery cell, the bottom side of each bottom cylinder corresponding one-to-one to and fixedly connected to the top end of each rotating shaft, and the bottom cylinder being rotatable by the rotating shaft connected thereto; A top plate and a top cylinder; the top plate is liftably mounted on the support frame, and a plurality of top bearings are provided on the top plate, wherein the inner ring of each top bearing corresponds to and is fixedly connected to the top side of the top cylinder, and the bottom side of each top cylinder is open to accommodate and fix the top end of the battery cell, and the opening of each top cylinder is opposite to the opening of each bottom cylinder. The support frame includes a bottom plate and two support rods, the two ends of the bottom plate are respectively fixedly connected to the two support rods and the bottom plate is arranged in a horizontal direction, each of the bottom bearings is detachably arranged on the bottom plate, the two ends of the top plate are respectively connected to the two support rods and can be raised and lowered on the support rods, and the top plate is arranged in a horizontal direction and located above the bottom plate; Both ends of the top plate are provided with sleeve holes, and the two ends of the top plate are respectively sleeved on the two support rods through the sleeve holes, and the two support rods are respectively provided with a first limiting ring, which is detachably fixed to the support rod and abuts against the bottom side of the top plate; The support rod is also provided with a sleeve, which passes through the end of the base plate and is fixedly connected to the base plate, the support rod passes through the sleeve and is movably arranged in the sleeve, and a detachable second limiting ring is provided on the support rod, the second limiting ring is fixedly connected to the support rod and abuts against the top end face of the sleeve, and a third limiting ring is fixedly provided at the bottom end of the support rod, and an elastic member is provided between the third limiting ring and the bottom end face of the sleeve, the elastic member is sleeved on the support rod, and the end faces of both ends of the elastic member abut against the third limiting ring and the bottom end face of the sleeve respectively, and the first limiting ring is fixedly connected to the top plate.

2. The battery core rotation detection jig according to claim 1, characterized in that: A connecting plate is provided on the side periphery of the sleeve, and the connecting plate abuts against the top side of the bottom plate and is connected with the bottom plate by screws.

3. The battery core rotation detection jig according to claim 1, characterized in that: The support rod is also sleeved with a blocking piece, the top side of the blocking piece abuts against the bottom end surface of the sleeve, and the bottom side of the blocking piece abuts against the top end of the elastic member.

4. The battery core rotation detection jig according to claim 1, characterized in that: A boss is provided at the top of each rotating shaft, the bottom end face of the boss abuts the top side of the inner ring of the bottom bearing, the top end face of the boss is connected to the bottom side of the bottom cylinder, and a fourth limiting ring is also provided on the rotating shaft, the fourth limiting ring is fixedly connected to the rotating shaft and the top side of the fourth limiting ring abuts the bottom side of the inner ring of the bottom bearing.

5. The battery core rotation detection jig according to claim 1, characterized in that: The bottom end of each rotating shaft is provided with a joint, and the joint is used to connect to the driving device.

6. The battery core rotation detection jig according to claim 5, characterized in that: The support rod is further provided with a limiting rod, one end of which is detachably arranged in the support rod, and the other end of which is in contact with the top side of the second limiting ring.

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