Secondary positioning structure of battery cell

Abstract

The utility model discloses a kind of secondary positioning structure of battery, belong to battery processing technical field.It includes: rack;First slide bar, is equipped with first positioning member;Second slide bar, is equipped with second positioning member;Counter pull rod, slidingly set in rack;First conversion swing arm, the middle portion of first conversion swing arm is rotatably installed in rack, and the both ends of first conversion swing arm are formed with first sliding slot and second sliding slot respectively, and first slide bar is rotatably connected with counter pull rod, and counter pull rod rotatably installs first sliding block slidingly set in first sliding slot, and second slide bar rotatably installs second sliding block slidingly set in second sliding slot.When battery is transplanted to the processing station between first positioning member and second positioning member, by driving first slide bar sliding, first positioning member and second positioning member can be driven to move synchronously and mutually close, realize the positioning clamping of battery, so as to guarantee the positioning accuracy of battery on processing station, so as to improve the qualified rate of battery processing.

Description

Technical Field

[0001] This utility model relates to the field of battery cell processing technology, and in particular to a secondary positioning structure for battery cells. Background Technology

[0002] With the rapid development of the lithium battery industry, the application of lithium batteries is becoming increasingly widespread. To meet market demand, lithium battery equipment is constantly being improved and innovated. When processing battery cells, the clamped cells are typically transferred to the processing station and processed directly. This results in insufficient positioning accuracy of the cells transferred to the processing station each time, leading to a decrease in the processing yield. Utility Model Content

[0003] The purpose of this utility model is to provide a secondary positioning structure for battery cells to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows: A secondary positioning structure for a battery cell includes: a frame; a first slide rod slidably disposed on the frame, the first slide rod being equipped with a first positioning element; a second slide rod slidably disposed on the frame, the second slide rod being equipped with a second positioning element; a tie rod slidably disposed on the frame, the sliding directions of the tie rod, the second slide rod, and the first slide rod being parallel; a first conversion swing arm, the middle part of the first conversion swing arm being rotatably mounted on the frame, the two ends of the first conversion swing arm respectively forming a first sliding groove and a second sliding groove, the first slide rod being rotatably connected to the tie rod, the end of the tie rod away from the first slide rod being rotatably mounted with a first slider slidably disposed in the first sliding groove, and the second slide rod being rotatably mounted with a second slider slidably disposed in the second sliding groove; driving the first slide rod to slide can be achieved by pulling the first conversion swing arm to swing through the tie rod, thereby pulling the second slide rod to slide in the opposite direction of the sliding direction of the first slide rod, so that the first positioning element and the second positioning element move closer to each other to achieve clamping and positioning.

[0005] This technical solution has at least the following beneficial effects: When the secondary positioning structure of the battery cell is installed on the processing station, when the battery cell is transferred to the processing station between the first positioning component and the second positioning component during the processing of materials such as battery cells, the first sliding rod can be driven to slide, which can drive the first positioning component and the second positioning component to move synchronously and move closer to each other, thereby realizing the positioning and clamping of the battery cell. This can ensure the positioning accuracy of the battery cell on the processing station, thereby improving the pass rate of battery cell processing.

[0006] As a further improvement to the above technical solution, the frame is rotatably mounted with a second conversion swing arm, and the second conversion swing arm is rotatably mounted with a third slider that is slidably disposed on the first slide rod, so that the second conversion swing arm can be driven to rotate, thereby causing the first slide rod to slide.

[0007] As a further improvement to the above technical solution, the frame is rotatably mounted with a positioning swing arm, the positioning swing arm is rotatably mounted with a positioning link, and the end of the positioning link away from the positioning swing arm is rotatably connected to the second conversion swing arm to drive the positioning swing arm to rotate. The second conversion swing arm can be pulled to rotate by the positioning link.

[0008] As a further improvement to the above technical solution, the frame is rotatably mounted with a positioning cam whose outer peripheral side abuts against the positioning swing arm, and the frame is mounted with a first elastic member that provides a spring force to keep the positioning swing arm in contact with the outer peripheral side of the positioning cam.

[0009] As a further improvement to the above technical solution, one of the first positioning member and the second positioning member is configured as two rotatable positioning wheels, and the other is configured as one rotatable positioning wheel.

[0010] As a further improvement to the above technical solution, the first slide bar is equipped with a first motor for driving the corresponding positioning wheel and / or the second slide bar is equipped with a second motor for driving the corresponding positioning wheel.

[0011] As a further improvement to the above technical solution, one of the first positioning member and the second positioning member is configured as two rotatable positioning wheels, and the other is configured as a positioning plate.

[0012] As a further improvement to the above technical solution, the frame is slidably provided with a height positioning block and rotatably provided with a lifting conversion swing arm. A first connecting rod is rotatably installed at the bottom of the height positioning block. The end of the first connecting rod away from the height positioning block is rotatably connected to the lifting conversion swing arm, driving the lifting conversion swing arm to rotate. The height positioning block can be pulled to move up and down through the first connecting rod.

[0013] As a further improvement to the above technical solution, the conversion swing arm is rotatably mounted with a second link, and a lifting swing arm is rotatably mounted at the end of the second link away from the conversion swing arm. The lifting swing arm is rotatably mounted on the frame. By driving the lifting swing arm to rotate, the lifting conversion swing arm can be pulled to rotate by the second link.

[0014] As a further improvement to the above technical solution, the frame is rotatably mounted with a lifting cam whose outer peripheral side abuts against the lifting swing arm, and a second elastic element is installed between the frame and the lifting swing arm. The second elastic element provides a spring force to keep the lifting swing arm in contact with the outer peripheral side of the lifting cam. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of one side of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of another side of the structure of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the structure of this utility model embodiment at another workstation;

[0019] Figure 4 This is a schematic diagram illustrating the use of three positioning wheels for positioning in an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram illustrating the positioning using two positioning wheels and a first positioning plate in an embodiment of this utility model.

[0021] Figure 6 This is a simplified diagram illustrating the horizontal positioning principle of an embodiment of the present invention.

[0022] Figure 7 This is a simplified diagram illustrating the height positioning principle of an embodiment of the present invention.

[0023] 100, Frame; 200, First slide bar; 210, Positioning wheel; 220, Positioning plate; 230, Second motor; 300, Second slide bar; 310, Second slider; 400, Pull rod; 410, First slider; 500, First conversion swing arm; 510, First slide groove; 520, Second slide groove; 600, Second conversion swing arm; 610, Third slider; 620, Third slide groove; 700, Positioning swing arm; 710, Positioning connecting rod; 800, Positioning cam; 810, First elastic element; 900, Height positioning block; 910, Lifting conversion swing arm; 920, First connecting rod; 930, Second connecting rod; 940, Lifting swing arm; 950, Lifting cam; 960, Second elastic element. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Reference Figure 1-7 The secondary positioning structure of the battery cell includes a frame 100, a first slide bar 200, a second slide bar 300, a pull rod 400, a first conversion swing arm 500, a second conversion swing arm 600, a positioning swing arm 700, a positioning connecting rod 710, a positioning cam 800, and a first elastic element 810.

[0029] The frame 100 is bolted to a workstation for material processing, such as battery cell processing. The first slide bar 200, the second slide bar 300, and the tie rod 400 are all slidably mounted on the frame 100 in a horizontal direction, and their sliding directions are parallel to each other. The middle part of the first conversion swing arm 500 is rotatably connected to the frame 100. One end of the first conversion swing arm 500 has a first groove 510, and the other end has a second groove 520. The first groove 510 and the second groove 520 are symmetrically distributed along the rotation center of the first conversion swing arm 500, and their length lines coincide.

[0030] The first slide rod 200 is rotatably connected to one end of the pull rod 400. A conversion rod is rotatably mounted on the first slide rod 200, with the end of the conversion rod away from the first slide rod 200 rotatably mounted on one end of the pull rod 400, thus enabling the connection between the first slide rod 200 and the pull rod 400. The rotation center lines of the two ends of the conversion rod are perpendicular. A first slider 410 is rotatably mounted on the end of the pull rod 400 away from the first slide rod 200. The first slider 410 has a cylindrical structure, and the center line of the cylindrical structure coincides with the rotation center line of the first slider 410 relative to the pull rod 400. The first slider 410 is slidably disposed in the first slide groove 510, and the sliding direction line of the first slider 410 within the first slide groove 510 is perpendicular to the rotation center line of the first slider 410 relative to the pull rod 400.

[0031] The second slider 310 is rotatably mounted on the second slide rod 300. The second slider 310 is also cylindrical, and the center line of the cylindrical structure coincides with the rotation center line of the second slider 310 relative to the second slide rod 300. The second slider 310 is slidably disposed in the second slide groove 520, and the sliding direction line of the second slider 310 in the second slide groove 520 is perpendicular to the rotation center line of the second slider 310 relative to the second slide rod 300.

[0032] The first slide rod 200 is equipped with a first positioning element, which consists of two positioning wheels 210 rotatably mounted on the first slide rod 200. The two positioning wheels 210 mounted on the first slide rod 200 have the same diameter. It can be understood that the two positioning wheels 210 mounted on the first slide rod 200 can rotate relative to the first slide rod 200.

[0033] The second slide rod 300 is equipped with a second positioning element, which is a positioning wheel 210 rotatably mounted on the second slide rod 300. It is understood that the positioning wheel 210 mounted on the second slide rod 300 can rotate relative to the second slide rod 300. The diameter of the positioning wheel 210 mounted on the second slide rod 300 is larger than that of the positioning wheel 210 mounted on the first slide rod 200.

[0034] The first slide rod 200 is slidable by a drive component such as a cylinder, hydraulic cylinder, or electric telescopic cylinder. This slides the counter-pull rod 400, which in turn causes the first switching arm 500 to swing. The swinging of the first switching arm 500 causes the second slide rod 300 to slide, and the sliding direction of the second slide rod 300 is opposite to that of the first slide rod 200. The two positioning wheels 210 on the first slide rod 200 and one positioning wheel 210 on the second slide rod 300 move closer together to clamp the material, thereby enabling three-point positioning of the material.

[0035] When the secondary positioning structure of the battery cell is installed on the processing station, when the battery cell is transferred to the processing station between the three positioning wheels 210, the first sliding rod 200 is driven to slide, which can drive the two positioning wheels 210 and one positioning wheel to move closer to each other synchronously, thereby achieving positioning and clamping of the battery cell. This can ensure the positioning accuracy of the battery cell on the processing station and improve the pass rate of battery cell processing.

[0036] In other embodiments, the first positioning element may be a positioning wheel 210 rotatably mounted on the first slide rod 200, and the second positioning element may be two positioning wheels 210 of the same diameter rotatably mounted on the second slide rod 300. The diameter of the positioning wheel 210 mounted on the second slide rod 300 is smaller than that of the positioning wheel 210 mounted on the first slide rod 200.

[0037] In other embodiments, the first positioning element is still the two positioning wheels 210 respectively rotatably mounted on the first slide bar 200. The second positioning element is the positioning plate 220 mounted on the second slide bar 300. The positioning plate 220 and the two positioning wheels 210 are close to each other to clamp the battery cell and position it. Similarly, in another embodiment, the first positioning element can be the positioning plate 220 mounted on the first slide bar 200, and the second positioning element can be the two positioning wheels 210 respectively rotatably mounted on the second slide bar 300.

[0038] Furthermore, a second motor 230 is installed on the second slide bar 300. The output end of the second motor 230 is connected to the positioning wheel 210 installed on the second slide bar 300. That is, the second motor 230 can drive the positioning wheel 210 installed on the second slide bar 300 to rotate, thereby driving the clamped battery cell to rotate and assisting the battery cell processing.

[0039] In other embodiments, a first motor can be mounted on the first slide bar 200. The output end of the first motor is connected to one or two positioning wheels 210 mounted on the first slide bar 200, meaning the first motor can drive one of the positioning wheels 210 mounted on the first slide bar 200 to rotate or the two positioning wheels 210 to rotate in the same direction. In another embodiment, a first motor and a second motor can be simultaneously provided, causing all three positioning wheels 210 to rotate in the same direction, and controlling the linear velocity of the three positioning wheels 210 to be the same, so that all three positioning wheels 210 synchronously drive the clamped battery cell to rotate.

[0040] Furthermore, a second conversion swing arm 600 is rotatably mounted on the frame 100. The middle part of the second conversion swing arm 600 is rotatably connected to the frame 100, and a preset included angle is provided between the two ends of the second conversion swing arm 600. A third slider 610 is rotatably mounted on one end of the second conversion swing arm 600. The third slider 610 can be a cylindrical structure, and the rotation center line of the cylindrical structure is parallel to the rotation center line of the second conversion swing arm 600. The first slide rod 200 is provided with a third slide groove 620, and the third slider 610 slides within the third slide groove 620. Instead of driving the first slide rod 200 to slide, the second conversion swing arm 600 is driven to rotate by a motor or other driving components, which can drive the first slide rod 200 to slide, thereby achieving the positioning and clamping of the battery cell.

[0041] Furthermore, a positioning link 710 is rotatably mounted on the other end of the second conversion swing arm 600. The frame 100 is rotatably mounted with the positioning swing arm 700, and the end of the positioning swing arm 700 furthest from the rotation center is rotatably connected to the end of the positioning link 710 furthest from the second conversion swing arm 600. Instead of driving the second conversion swing arm 600 to rotate, the positioning swing arm 700 is driven to swing by a motor or other driving components, which in turn causes the second conversion swing arm 600 to rotate, thereby causing the first slide rod 200 to slide, achieving positioning and clamping of the battery cell.

[0042] Furthermore, a positioning cam 800 is rotatably mounted on the frame 100, and a roller is rotatably mounted on the middle of the positioning swing arm 700, with the outer periphery of the positioning cam 800 abutting against the roller. The frame 100 is also equipped with a first elastic element 810, which is a first helical spring. One end of the first helical spring is mounted on the frame 100, and the other end is mounted on the positioning swing arm 700, with the first helical spring positioned between the roller and the positioning connecting rod 710. The elastic force of the first helical spring can pull the positioning swing arm 700 and keep the roller abutting against the outer periphery of the positioning cam 800, thus allowing the positioning cam 800 to push the positioning swing arm 700 to swing during rotation. Instead of driving the positioning swing arm 700 to rotate, the positioning cam 800 is driven to rotate via a motor or other driving components, which in turn drives the positioning swing arm 700 to rotate, thereby driving the second conversion swing arm 600 to rotate, and thus causing the first slide rod 200 to slide, achieving positioning and clamping of the battery cell. In other embodiments, the first elastic element 810 may also be an elastic band, with its two ends connected to the frame 100 and the positioning swing arm 700, respectively. The contraction force of the elastic band can keep the positioning swing arm 700 in contact with the outer periphery of the positioning cam 800.

[0043] Furthermore, in this embodiment, a third slider 610 is rotatably provided on both sides of the second conversion swing arm 600. The two third sliders 610 located on both sides of the second conversion swing arm 600 can respectively drive the two sets of first slide rods 200 and their corresponding connected pull rods 400, first conversion swing arm 500 and second slide rods 300 to move, thereby enabling simultaneous positioning of the battery cells at two processing positions.

[0044] In other embodiments, by designing the dimensions and rationally distributing the heights of the components, the tie rod 400 and the first slide rod 200 can be directly connected to form a whole, thereby simplifying the overall structure.

[0045] The secondary positioning structure of the battery cell in this embodiment also includes a height positioning block 900, a lifting conversion swing arm 910, a first connecting rod 920, a second connecting rod 930, a lifting swing arm 940, a lifting cam 950, and a second elastic element 960.

[0046] A height positioning block 900 is vertically slidably mounted on the frame 100. The bottom of the height positioning block 900 is rotatably connected to one end of the first connecting rod 920. The end of the first connecting rod 920 away from the height positioning block 900 is rotatably connected to one end of the lifting conversion swing arm 910. The middle part of the lifting conversion swing arm 910 is rotatably connected to the frame 100. The other end of the lifting conversion swing arm 910 is rotatably connected to one end of the second connecting rod 930. The end of the second connecting rod 930 away from the lifting conversion swing arm 910 is rotatably connected to one end of the lifting swing arm 940. The end of the lifting swing arm 940 away from the second connecting rod 930 is rotatably mounted on the frame 100. A lifting cam 950 is rotatably mounted on the frame 100. A rolling wheel is rotatably mounted on the middle part of the lifting swing arm 940, and the outer periphery of the rolling wheel abuts against the outer periphery of the lifting cam 950. The second elastic element 960 is a second helical spring. One end of the second helical spring is mounted on the frame 100, and the other end is mounted on the lifting swing arm 940. The mounting position of the second helical spring is between the rolling wheel and the second connecting rod 930. In other embodiments, the second elastic element 960 can also be an elastic band. The two ends of the elastic band are respectively connected to the frame 100 and the lifting swing arm 940. The contraction force of the elastic band can keep the lifting swing arm 940 in contact with the outer periphery of the lifting cam 950.

[0047] The lifting cam 950 is rotated by a motor and other driving components, which can push the lifting swing arm 940 to swing. The swing of the lifting swing arm 940 can pull the lifting conversion swing arm 910 to swing through the second link 930. The swing of the lifting conversion swing arm 910 can pull the height positioning block 900 to perform lifting and lowering movements through the first link 920, thereby realizing the height positioning of the battery cell.

[0048] In other embodiments, the lifting cam 950 and the second elastic element 960 may be omitted. Instead, a motor or other driving component can be used to directly drive the lifting swing arm 940 to rotate, thereby causing the height positioning block 900 to move up and down, achieving height positioning of the battery cell. In other embodiments, the lifting cam 950, the second elastic element 960, the lifting swing arm 940, and the second connecting rod 930 may be omitted. Instead, a motor or other driving component can be used to directly drive the lifting conversion swing arm 910 to rotate, thereby causing the height positioning block 900 to move up and down, achieving height positioning of the battery cell.

[0049] In this embodiment, by designing different radii or shapes on the outer periphery of the positioning cam 800 and the lifting cam 950—such as different designs for the radius of the outer periphery of the positioning cam 800 from the rotation center in various directions—and by controlling the swing arm at different strokes with different actual angles and heights, the positioning wheel 210 and the height positioning block 900 are controlled to perform regular periodic movements according to their designed sequence. This facilitates the design of the movement sequence for horizontal and height positioning of the battery cell. Through the rational design of the curves of the positioning cam 800 and the lifting cam 950, the clamping and centering process and the height positioning process of the battery cell can be made gentler, with less impact force, which is more favorable to the battery cell structure and less likely to damage the battery cell.

[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An electrode chip secondary positioning structure, characterized by comprising: include: frame; A first slide bar is slidably mounted on the frame, and a first positioning element is installed on the first slide bar; The second slide bar is slidably mounted on the frame, and the second slide bar is equipped with a second positioning element; The tie rod is slidably mounted on the frame, and the sliding directions of the tie rod, the second slide rod, and the first slide rod are parallel. A first conversion swing arm is rotatably mounted on the frame at its middle portion. A first slide groove and a second slide groove are formed at both ends of the first conversion swing arm. A first slide rod is rotatably connected to a pull rod. A first slider, slidably disposed in the first slide groove, is rotatably mounted on the end of the pull rod away from the first slide rod. A second slide rod is rotatably mounted on a second slider, slidably disposed in the second slide groove. Driving the first slide rod to slide allows the first conversion swing arm to swing by pulling the pull rod, thereby pulling the second slide rod to slide in the opposite direction of the first slide rod's sliding direction, causing the first positioning member and the second positioning member to move closer to each other for clamping and positioning.

2. The secondary positioning structure for a battery cell according to claim 1, characterized in that: The frame is rotatably mounted with a second conversion swing arm, and the second conversion swing arm is rotatably mounted with a third slider that is slidably disposed on the first slide rod. Driving the second conversion swing arm to rotate can drive the first slide rod to slide.

3. The secondary positioning structure for a battery cell according to claim 2, characterized in that: The frame is rotatably mounted with a positioning swing arm, and the positioning swing arm is rotatably mounted with a positioning link. The end of the positioning link away from the positioning swing arm is rotatably connected to the second conversion swing arm, driving the positioning swing arm to rotate. The second conversion swing arm can be pulled to rotate by the positioning link.

4. The secondary positioning structure for a battery cell according to claim 3, characterized in that: The frame is rotatably mounted with a positioning cam whose outer peripheral side abuts against the positioning swing arm, and the frame is equipped with a first elastic element that provides a spring force to keep the positioning swing arm in contact with the outer peripheral side of the positioning cam.

5. The secondary positioning structure for a battery cell according to claim 1, characterized in that: One of the first positioning member and the second positioning member is configured with two rotatable positioning wheels, and the other is configured with one rotatable positioning wheel.

6. The secondary positioning structure for a battery cell according to claim 5, characterized in that: The first slide bar is equipped with a first motor for driving the corresponding positioning wheel and / or the second slide bar is equipped with a second motor for driving the corresponding positioning wheel.

7. The secondary positioning structure for a battery cell according to claim 1, characterized in that: One of the first positioning component and the second positioning component is configured as two rotatable positioning wheels, and the other is configured as a positioning plate.

8. A secondary positioning structure for a battery cell according to any one of claims 1-7, characterized in that: The frame is slidably equipped with a height positioning block and rotatably equipped with a lifting conversion swing arm. A first connecting rod is rotatably installed at the bottom of the height positioning block. The end of the first connecting rod away from the height positioning block is rotatably connected to the lifting conversion swing arm, driving the lifting conversion swing arm to rotate. The height positioning block can be pulled to move up and down through the first connecting rod.

9. The secondary positioning structure for a battery cell according to claim 8, characterized in that: The conversion swing arm is rotatably mounted with a second link, and a lifting swing arm is rotatably mounted at the end of the second link away from the conversion swing arm. The lifting swing arm is rotatably mounted on the frame. By driving the lifting swing arm to rotate, the lifting conversion swing arm can be pulled to rotate by the second link.

10. The secondary positioning structure for a battery cell according to claim 9, characterized in that: The frame is rotatably mounted with a lifting cam whose outer peripheral side abuts against the lifting swing arm. A second elastic element is installed between the frame and the lifting swing arm, and the second elastic element provides a spring force to keep the lifting swing arm in contact with the outer peripheral side of the lifting cam.

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