A high-precision stacked battery cell test grouping device and battery cell assembly system

Abstract

The present invention discloses a high-precision stacked cell test grouping device and a cell assembly system, comprising a base and a U-shaped seat fixed on the top of the base, a belt roller rotating between the two sides of the inner wall of the U-shaped seat, two belt rollers are provided, a conveyor belt is connected between the surfaces of the two belt rollers, and limiting rubber strips are fixed on both sides of the conveyor belt surface, a motor is fixed in front of the U-shaped seat, one end of the motor's output shaft passes through the U-shaped seat and is fixed to the end of one of the belt rollers, and the present invention relates to the field of cell assembly technology. The high-precision stacked cell test grouping device and cell assembly system facilitate quantitative grouping through the setting of a quantitative grouping mechanism, so that the amount of cells in each grouping is the same, with a high degree of automation, a simple structure and convenient operation, and the setting of a linkage blocking mechanism therein facilitates free blocking and limiting of the cells without interfering with the normal progress of the pushing work.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell assembly, and in particular to a high-precision stacked battery cell testing grouping device and a battery cell assembly system. Background Art

[0002] A cell refers to a single electrochemical cell containing positive and negative electrodes, which is generally not used directly. It is different from a battery that contains a protection circuit and a shell and can be used directly. The composition of a lithium-ion secondary rechargeable battery is as follows: cell + protection circuit board. The rechargeable battery without the protection circuit board is the cell. It is the storage part of the rechargeable battery. The quality of the cell directly determines the quality of the rechargeable battery. With the development of the new energy field, the supply chain of electronic equipment or electric vehicle manufacturers has seen the demand for cell assembly, and the level and requirements of the cell production line are getting higher and higher. The improvement of the production line capacity is imminent. Cylindrical cells are currently the main practical cells in China and are widely used in laptop computers, mobile power supplies, power tools, electric vehicles and other fields. Before leaving the factory, cylindrical cells must undergo strict voltage internal resistance testing and then be classified and graded according to cell performance. The cylindrical cell grading machine in the prior art usually includes a cylindrical cell feeding device, a cylindrical cell detection device, a cylindrical cell sorting manipulator, and the like.

[0003] Before testing cylindrical battery cells, they need to be grouped. During grouping, existing equipment is not convenient for quickly and conveniently grouping multiple battery cells. The degree of automation is low, the grouping efficiency is low, and when using a conveyor belt for transportation, the conveyor belt will deviate. Therefore, the present invention proposes a high-precision stacked battery cell test grouping device and a battery cell assembly system to solve the above-mentioned problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a high-precision stacked battery cell test grouping device and a battery cell assembly system, which solves the problem that grouping processing is required before testing cylindrical battery cells. During grouping, the existing equipment is not convenient for quickly and conveniently grouping multiple battery cells into a group, and the degree of automation and grouping efficiency are low. In addition, when using a conveyor belt for transportation, the conveyor belt will deviate.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions: a high-precision stacked battery cell test grouping device, comprising a base and a U-shaped seat fixed on the top of the base, a belt roller is rotated between the two sides of the inner wall of the U-shaped seat, two belt rollers are provided, a conveyor belt is transmission-connected between the surfaces of the two belt rollers, and limiting rubber strips are fixed on both sides of the surface of the conveyor belt, a motor is fixed in front of the U-shaped seat, one end of the output shaft of the motor passes through the U-shaped seat and is fixed to the end of one of the belt rollers, a quantitative grouping mechanism is provided on the base, and a deviation correction mechanism is provided on the U-shaped seat;

[0006] The quantitative grouping mechanism includes a mounting plate fixed to the top of the base. A slanting folding plate is fixed to the top of the mounting plate through a support plate. An L-shaped plate is fixed to the top of the mounting plate. An electric push rod is fixed in front of the L-shaped plate. A push plate slides on the top of the slanting folding plate. The front end of the electric push rod is fixedly connected to the rear of the push plate. A splicing plate is fixed to the top of the slanting folding plate. A hydraulic cylinder is fixed to the bottom of the L-shaped plate. The bottom end of the hydraulic cylinder is fixed with a partition thin plate. A hanging plate is fixed to the bottom of the L-shaped plate. A touch switch is fixed above the hanging plate. A touch rod that cooperates with the touch switch is fixed to the side of the partition thin plate. A PLC controller is fixed to the top of the slanting folding plate. A linkage blocking mechanism is arranged above the mounting plate.

[0007] Preferably, the linkage blocking mechanism includes a baffle plate slidably penetrating through the top of the slanting folding plate. A lower extension block is fixed to the side of the baffle plate. An upper extension block is fixed to the side of the slanting folding plate. A reset spring rod is fixed between the lower extension block and the upper extension block.

[0008] Preferably, a pulling rope is fixed to the bottom of the baffle plate. A first guiding pulley and a second guiding pulley are sequentially fixed to the top of the mounting plate from front to back. One end of the pulling rope is sequentially wound around the first guiding pulley, the second guiding pulley and fixedly connected to the surface of the electric push rod.

[0009] Preferably, the deviation rectifying mechanism includes a driving cylinder fixed to the rear of the inner wall of the U-shaped seat. A sliding seat is slidably installed at the rear of the inner wall of the U-shaped seat.

[0010] Preferably, a sliding groove adapted to the sliding seat is formed at the rear of the inner wall of the U-shaped seat. A deviation rectifying pressure roller is rotatably installed in front of the sliding seat. The surface of the deviation rectifying pressure roller is in contact with the inner side of the surface of the conveying belt.

[0011] Preferably, the slanting folding plate is arranged to incline downward. The slanting folding plate is in a "亅" shape. There is a gap between the splicing plate and the push plate.

[0012] Preferably, the touch rod is directly above the touch switch. The bottom of the partition thin plate is in a "V" shape. The touch switch is electrically connected to the electric push rod.

[0013] A battery cell assembly system includes the high-precision stacked battery cell testing and grouping device described in any one of the above.

[0014] Beneficial effects

[0015] The present invention provides a high-precision stacked battery cell testing and grouping device and a battery cell assembly system. Compared with the prior art, the following beneficial effects are achieved:

[0016] (1) The high-precision stacked cell test grouping device and cell assembly system include a quantitative grouping mechanism including a mounting plate fixed on the top of a base, a slanted folding plate fixed to the top of the mounting plate through a support plate, an L-shaped plate fixed to the top of the mounting plate, an electric push rod fixed to the front of the L-shaped plate, a push plate sliding on the top of the slanted folding plate, a front end of the electric push rod fixedly connected to the rear of the push plate, a splicing plate fixed to the top of the slanted folding plate, a hydraulic cylinder fixed to the bottom of the L-shaped plate, a partition plate fixed to the bottom end of the hydraulic cylinder, a hanging plate fixed to the bottom of the L-shaped plate, a touch switch fixed to the top of the hanging plate, and a contact switch fixed to the side of the partition plate. A touch rod is used in conjunction with it, a PLC controller is fixed on the top of the oblique folding plate, a linkage blocking mechanism is arranged above the mounting plate, the linkage blocking mechanism comprises a baffle plate which slides through the top of the oblique folding plate, a lower extension block is fixed on the side of the baffle plate, an upper extension block is fixed on the side of the oblique folding plate, a reset spring rod is fixed between the lower extension block and the upper extension block, and the quantitative grouping mechanism is arranged to facilitate quantitative grouping, so that the amount of battery cells in each grouping is the same, the degree of automation is high, the structure is simple and the operation is convenient, and the linkage blocking mechanism is arranged to facilitate free blocking and limiting of the battery cells without interfering with the normal progress of the pushing work.

[0017] (2) The high-precision stacked battery cell test grouping device and battery cell assembly system include a deflection correction mechanism including a driving cylinder fixed behind the inner wall of the U-shaped seat, a sliding seat slidably installed behind the inner wall of the U-shaped seat, a sliding groove matched with the sliding seat is opened behind the inner wall of the U-shaped seat, and a deflection correction pressure roller is rotated in front of the sliding seat. The surface of the deflection correction pressure roller contacts the inner side of the conveyor belt surface. Through the setting of the deflection correction mechanism, it is convenient to correct the deflection and tighten the conveyor belt, and effectively prevent the conveyor belt from deviating during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the quantitative grouping mechanism of the present invention;

[0020] Figure 3 is a schematic diagram of the oblique folded plate structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the L-shaped plate structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the mounting plate structure of the present invention;

[0023] Figure 6 It is a schematic diagram of the connection between the hydraulic cylinder and the partition plate of the present invention;

[0024] Figure 7 It is a main cross-sectional view of the U-shaped seat structure of the present invention.

[0025] In the figure: 1-base, 2-U-shaped seat, 3-belt roller, 4-conveyor belt, 5-limiting rubber strip, 6-motor, 7-quantitative grouping mechanism, 71-mounting plate, 72-support plate, 73-oblique folding plate, 74-L-shaped plate, 75-electric push rod, 76-push plate, 77-splicing plate, 78-hydraulic cylinder, 79-partitioning sheet, 710-hanging plate, 711-touch switch, 712-touch rod, 713-PLC controller, 714-linked blocking mechanism, 7141-baffle, 7142-lower extension block, 7143-upper extension block, 7144-reset spring rod, 7145-pull rope, 7146-first guide pulley, 7147-second guide pulley, 8-correction mechanism, 81-driving cylinder, 82-sliding seat, 83-slide groove, 84-correction pressure roller. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-7 The present invention provides a technical solution: a high-precision stacked battery cell test grouping device, comprising a base 1 and a U-shaped seat 2 fixed on the top of the base 1, a belt roller 3 is rotated between the two sides of the inner wall of the U-shaped seat 2, two belt rollers 3 are provided, a conveyor belt 4 is transmission-connected between the surfaces of the two belt rollers 3, and limiting rubber strips 5 are fixed on both sides of the surface of the conveyor belt 4, which are convenient for limiting the cylindrical battery cell and effectively preventing the cylindrical battery cell from falling. A motor 6 is fixed in front of the U-shaped seat 2, which is electrically connected to an external power supply and controlled by a control switch, one end of the output shaft of the motor 6 passes through the U-shaped seat 2 and is fixed to the end of one of the belt rollers 3, a quantitative grouping mechanism 7 is provided on the base 1, and a deviation correction mechanism 8 is provided on the U-shaped seat 2;

[0028] The quantitative grouping mechanism 7 includes a mounting plate 71 fixed to the top of the base 1. The top of the mounting plate 71 is fixed with an inclined folding plate 73 through a support plate 72. The top of the mounting plate 71 is fixed with an L-shaped plate 74. In front of the L-shaped plate 74, an electric push rod 75 is fixed, which is electrically connected to an external power supply and controlled by a PLC controller 713. A push plate 76 slides on the top of the inclined folding plate 73. The front end of the electric push rod 75 is fixedly connected to the rear of the push plate 76. The top of the inclined folding plate 73 is fixed with a splicing plate 77. The bottom of the L-shaped plate 74 is fixed with a hydraulic cylinder 78, which is electrically connected to an external power supply and controlled by a PLC controller 713. The bottom end of the hydraulic cylinder 78 is fixed with a partition thin plate 79, and the bottom is located in the middle position between two cylindrical battery cores. The bottom of the L-shaped plate 74 is fixed with a hanging plate 710. Above the hanging plate 710, a touch switch 711 is fixed. On the side of the partition thin plate 79, a touch rod 712 used in cooperation with the touch switch 711 is fixed. The top of the inclined folding plate 73 is fixed with a PLC controller 713. Above the mounting plate 71, a linkage blocking mechanism 714 is provided.

[0029] In the embodiment of the present invention, the linkage blocking mechanism 714 includes a baffle 7141 slidably penetrating through the top of the inclined folding plate 73. A lower extension block 7142 is fixed to the side of the baffle 7141. An upper extension block 7143 is fixed to the side of the inclined folding plate 73. A reset spring rod 7144 is fixed between the lower extension block 7142 and the upper extension block 7143 to facilitate the quick reset of the baffle 7141. A pull rope 7145 is fixed to the bottom of the baffle 7141. The top of the mounting plate 71 is successively fixed with a first guide pulley 7146 and a second guide pulley 7147 from front to back. One end of the pull rope 7145 is successively wound around the first guide pulley 7146, the second guide pulley 7147 and fixedly connected to the surface of the electric push rod 75.

[0030] In the embodiment of the present invention, the deviation rectifying mechanism 8 includes a driving cylinder 81 fixed to the rear of the inner wall of the U-shaped seat 2, which is electrically connected to an external power supply and controlled by a control switch. A sliding seat 82 is slidably installed at the rear of the inner wall of the U-shaped seat 2. A chute 83 adapted to the sliding seat 82 is opened at the rear of the inner wall of the U-shaped seat 2. A deviation rectifying pressure roller 84 is rotatably installed in front of the sliding seat 82, and the surface of the deviation rectifying pressure roller 84 is in contact with the inner side of the surface of the conveyor belt 4.

[0031] In the embodiment of the present invention, the inclined folding plate 73 is inclined downward, the inclined folding plate 73 adopts a "亅" shape, there is a gap between the splicing plate 77 and the push plate 76, the touch rod 712 is directly above the touch switch 711, the bottom of the partition thin plate 79 is in a "V" shape, and the touch switch 711 is electrically connected to the electric push rod 75.

[0032] A battery core assembly system includes the high-precision stacked battery core testing and grouping device according to any one of the above.

[0033] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] During operation, the cylindrical battery cells are neatly arranged above the surface of the conveyor belt 4 (between the two limit rubber strips 4), and then the motor 6 is started to drive one of the belt rollers 3 to rotate, and then cooperate with the other belt roller 3 to drive the entire conveyor belt 4 to move, thereby driving the cylindrical battery cells to move, so that the cylindrical battery cells 4 can slide down along the top of the oblique folding plate 73, so that the cylindrical battery cells 4 can be neatly arranged on the oblique folding plate 73, and then the hydraulic cylinder 78 is controlled to extend through the PLC controller 713, thereby driving the partition plate 79 to move downward, and the cylindrical battery cells are divided into two groups on the left and right. Since the position of the partition plate 79 remains unchanged, the number of cylindrical battery cells on the right side of the partition plate 79 is the same after each separation, and the partition plate After the plate 79 moves down to the lowest point, the touch rod 712 touches the touch switch 711, and then the PLC controller 713 controls the electric push rod 75 to extend and reset. During the extension process of the electric push rod 75, the push plate 76 will be pushed forward, and the cylindrical battery cell on the right side of the partition plate 79 can be pushed forward. The extension of the electric push rod 75 will pull the pull rope 7145, and then the baffle 7141 can be pulled down, so that the baffle 7141 loses the blocking of the cylindrical battery cell, and the cylindrical battery cell can smoothly slide down from the top of the oblique folding plate 73 for the next test. After the electric push rod 75 is shortened, under the elastic force of the reset spring rod 7144, the baffle 7141 will quickly reset and continue to block the cylindrical battery cell.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision stacked cell test grouping device, comprising a base (1) and a U-shaped seat (2) fixed on the top of the base (1), characterized in that: A belt roller (3) is rotated between the two sides of the inner wall of the U-shaped seat (2), two belt rollers (3) are provided, a conveying belt (4) is transmission-connected between the surfaces of the two belt rollers (3), and limiting rubber strips (5) are fixed on both sides of the surface of the conveying belt (4), a motor (6) is fixed in front of the U-shaped seat (2), one end of the output shaft of the motor (6) passes through the U-shaped seat (2) and is fixed to the end of one of the belt rollers (3), a quantitative grouping mechanism (7) is provided on the base (1), and a deviation correction mechanism (8) is provided on the U-shaped seat (2); The quantitative grouping mechanism (7) comprises a mounting plate (71) fixed to the top of the base (1); a slanted folding plate (73) is fixed to the top of the mounting plate (71) via a support plate (72); an L-shaped plate (74) is fixed to the top of the mounting plate (71); an electric push rod (75) is fixed in front of the L-shaped plate (74); a push plate (76) is slidably mounted on the top of the slanted folding plate (73); a front end of the electric push rod (75) is fixedly connected to the rear of the push plate (76); a splicing plate (77) is fixed to the top of the slanted folding plate (73); and the L-shaped plate (74) is fixed to the front of the push plate (76). A hydraulic cylinder (78) is fixed to the bottom of the mold plate (74), a partition plate (79) is fixed to the bottom end of the hydraulic cylinder (78), a hanging plate (710) is fixed to the bottom of the L-shaped plate (74), a touch switch (711) is fixed above the hanging plate (710), a touch rod (712) used in conjunction with the touch switch (711) is fixed to the side of the partition plate (79), a PLC controller (713) is fixed to the top of the oblique folding plate (73), and a linkage blocking mechanism (714) is provided above the mounting plate (71); The linkage blocking mechanism (714) comprises a baffle (7141) that slides through the top of the oblique folding plate (73); a lower extension block (7142) is fixed to the side of the baffle (7141); an upper extension block (7143) is fixed to the side of the oblique folding plate (73); and a return spring rod (7144) is fixed between the lower extension block (7142) and the upper extension block (7143); A pull rope (7145) is fixed to the bottom of the baffle (7141), and a first guide pulley (7146) and a second guide pulley (7147) are fixed to the top of the mounting plate (71) in sequence from front to back, and one end of the pull rope (7145) is wound around the first guide pulley (7146) and the second guide pulley (7147) in sequence and is fixedly connected to the surface of the electric push rod (75).

2. A high-precision stacked cell test grouping device according to claim 1, characterized in that: The deviation correction mechanism (8) comprises a driving cylinder (81) fixed to the rear of the inner wall of the U-shaped seat (2), and a sliding seat (82) is slidably mounted to the rear of the inner wall of the U-shaped seat (2).

3. A high-precision stacked cell test grouping device according to claim 2, characterized in that: A slide groove (83) adapted to the sliding seat (82) is provided at the rear of the inner wall of the U-shaped seat (2), and a deviation-correcting pressure roller (84) is rotated in front of the sliding seat (82), the surface of the deviation-correcting pressure roller (84) being in contact with the inner side of the surface of the conveying belt (4).

4. A high-precision stacked cell test grouping device according to claim 1, characterized in that: The inclined folding plate (73) is arranged to incline downward, the inclined folding plate (73) adopts a "亅" shape, and there is a gap between the splicing plate (77) and the pushing plate (76).

5. A high-precision stacked cell test grouping device according to claim 1, characterized in that: The touch rod (712) is directly above the touch switch (711), the bottom of the partition thin plate (79) is in a "V" shape, and the touch switch (711) is electrically connected to the electric push rod (75).

6. A battery cell assembly system, characterized in that: The battery cell assembly system includes the high-precision stacked battery cell testing and grouping device according to any one of claims 1-5.

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