Battery liquid preparation and assembly equipment

Abstract

The invention relates to the technical field of battery manufacturing equipment, in particular to battery liquid preparation and assembly equipment. The liquid preparation mechanism head is used for injecting electrolyte into the liquid storage container; the electrolyte injection mechanism is used for extracting the electrolyte in the electrolyte storage container into the electrolyte storage tank and injecting the electrolyte in the electrolyte storage tank into a battery shell; the positive electrode entering mechanism drives the positive electrode cap to rotate to a horizontal state and enter the battery shell; and the sealing mechanism is used for driving the upper part of the battery shell to bend inwards and wrap the periphery of the positive electrode cap. According to the battery liquid preparation and assembly equipment disclosed by the invention, the preparation work of the electrolyte can be realized on site, the applicability and the universality of the battery liquid preparation and assembly equipment are improved, and the electrolyte is convenient to adjust; in addition, the battery liquid preparation and assembly equipment can realize the assembly and edge covering actions between the positive electrode cap and the battery shell, and is high in automation degree.

Description

Technical Field

[0001] The present invention relates to the technical field of battery manufacturing equipment, and in particular to battery liquid preparation and assembly equipment. Background Art

[0002] With the widespread use of batteries, the requirements for corresponding battery performance are also becoming increasingly higher. The electrolyte is a vital component of the battery, serving to transfer charge between the positive and negative electrodes. The excellent performance of the electrolyte affects its chemical stability, electrochemical window, conductivity, and other factors. In existing technologies, battery manufacturing equipment typically injects pre-configured electrode solutions into the battery, and cannot adjust the chemical composition of the electrolyte in real time on site. In addition, existing battery manufacturing equipment also suffers from technical issues such as low automation. Summary of the Invention

[0003] The embodiment of the present invention provides a battery liquid preparation and assembly device to solve the technical problem in the prior art that battery manufacturing equipment cannot adjust the electrolyte composition on site.

[0004] A battery liquid preparation and assembly device provided in one embodiment of the present invention includes a liquid preparation mechanism, a liquid injection mechanism, a positive electrode insertion mechanism, and a sealing mechanism; The liquid dispensing mechanism includes a shaking driving member, a liquid dispensing support frame, and a plurality of liquid dispensing needles installed at intervals on the liquid dispensing support frame, wherein the liquid dispensing support frame is installed on the shaking driving member, and the liquid dispensing needles are used to inject electrolyte into the liquid storage container; The injection mechanism includes a moving part, a liquid storage tank, and an injection pump mounted on the liquid storage tank, wherein the liquid storage tank is mounted on the moving part; the injection pump is used to extract the electrolyte in the liquid storage container into the liquid storage tank, and to inject the electrolyte in the liquid storage tank into the battery shell; wherein the battery shell is connected to an upright positive electrode cap; The positive electrode insertion mechanism includes a clamping assembly and a pressing assembly; the clamping assembly is used to clamp the battery shell, and the pressing assembly includes a pressing lifting drive member and a pressing head installed at the output end of the pressing lifting drive member, and the pressing lifting drive member is used to drive the pressing head to move, and the pressing head drives the positive electrode cap to rotate to a horizontal state and enter the battery shell; The sealing mechanism includes a sealing lifting drive member, a lower mold assembly and an upper mold assembly provided with a mold groove; the output end of the sealing lifting drive member is connected to the upper mold assembly; the lower mold assembly includes a first lower half mold assembly and a second lower half mold assembly for clamping the battery shell; the sealing lifting drive member is used to drive the upper mold assembly to move downward, and the upper mold assembly is covered on the first lower half mold assembly, the second lower half mold assembly and the battery shell through the mold groove, and the upper mold assembly drives the upper part of the battery shell to bend inward and wrap around the positive electrode cap.

[0005] Optionally, the positive electrode insertion mechanism further includes a pushing component and a limiting component; The flattening assembly includes a flattening drive member, a flattening seat, a first elastic member, and a push rod slidably mounted on the flattening seat; the flattening seat is mounted on the output end of the flattening drive member, and the first elastic member is mounted on the push rod and abuts against the flattening seat; The limiting assembly includes a limiting driving member and a limiting seat with a side groove, wherein the side groove is adapted to the battery shell; the limiting seat is installed at the output end of the limiting driving member; The push-flattening drive member is used to drive the push-flattening seat to move toward one end close to the limit assembly, and the push rod drives the positive electrode cap to rotate to a horizontal state; the limit driving member is used to drive the limit seat to move toward one end close to the push-flattening assembly until the inner wall of the side groove abuts against the battery shell, and the limit seat drives the battery shell to rotate to a vertical state; The pressing-in lifting drive member is used to drive the pressing head to move, and the pressing head drives the positive electrode cap to rotate to a horizontal state and enter the battery shell.

[0006] Optionally, the limiting assembly further includes a slide plate and a second elastic member, wherein the slide plate is slidably mounted on the limiting seat and extends into the side groove, and the second elastic member is mounted on the slide plate and abuts against the limiting seat; When the limiting seat moves to the inner wall of the side groove and abuts against the battery shell, the battery shell drives the slide to move and compresses the second elastic member, and the positive electrode cap drives the push rod to move toward the end away from the limiting assembly.

[0007] Optionally, the sealing mechanism includes a sealing seat, the upper mold assembly includes an upper plate, a first wedge, a second wedge, and an upper mold provided with the mold groove, the upper plate is slidably mounted on the sealing seat along a first direction, the sealing lifting drive member is mounted on the sealing seat and connected to the upper plate; the upper mold, the first wedge, and the second wedge are all mounted on the upper plate; The first lower mold half assembly includes a first lower plate, a first docking member, and a first lower mold half having a first mold half groove. The first lower mold half is slidably mounted on the sealing seat along a second direction. The first lower mold half is mounted on the first lower plate and protrudes toward the upper mold. The first direction is perpendicular to the second direction. The second lower mold half assembly includes a second lower plate, a second docking member, and a second lower mold half having a second mold half groove. The second lower mold half is slidably mounted on the sealing seat along a second direction. The second lower mold half is mounted on the second lower plate and protrudes toward the upper mold. The sealing lifting drive member is used to drive the upper plate to move in the first direction, the first wedge is used to drive the first lower plate to move in the second direction through the first docking member, and the second wedge is used to drive the second lower plate to move in the second direction through the second docking member. The first lower half mold and the second lower half mold are surrounded and the battery shell is clamped in the first half mold groove and the second half mold groove. The upper mold is covered on the first lower half mold assembly, the second lower half mold assembly and the battery shell through the mold groove, and the upper mold drives the upper part of the battery shell to bend inward and wrap around the positive cap.

[0008] Optionally, the sealing mechanism further comprises a support guide block and a first guide rail mounted on the sealing seat, the support guide block being provided with a first guide groove adapted to the first guide rail, the support guide block being slidably mounted on the first guide rail along a third direction via the first guide groove; wherein the first direction, the second direction, and the third direction are perpendicular to each other; The supporting guide block is provided with a storage groove for storing the battery shell.

[0009] Optionally, the injection mechanism further comprises a storage seat, the storage seat is provided with a plurality of storage holes distributed at intervals, each of the storage holes is used to store an injection tube, and the injection tube is detachably connected to the injection pump.

[0010] Optionally, the battery liquid preparation and assembly equipment further includes a shaking mechanism; the shaking mechanism includes a shaking seat, a shaking drive assembly, and a shaking support plate slidably mounted on the shaking seat, the shaking support plate being used to support a fixture on which the liquid storage container is mounted; the shaking drive assembly is used to drive the shaking support plate to reciprocate on the shaking seat to shake the electrolyte in the liquid storage container; The liquid dispensing mechanism injects the electrolyte into the liquid storage container, the shaking mechanism shakes the electrolyte in the liquid storage container, and then the liquid injection mechanism draws the electrolyte in the liquid storage container into the liquid storage tank.

[0011] Optionally, the shake drive assembly includes a shake drive member, a support block, a third elastic member, and a push plate; the push plate is provided with a slide rod, the support block is provided with a slide hole, the slide rod is slidably inserted into the slide hole, and the third elastic member is sleeved on the slide rod and abuts against the support block; The support block is installed at the output end of the shaking drive component, and the push plate is connected to the shaking support plate.

[0012] Optionally, the liquid storage container includes a container body and a container cover detachably mounted on the container body; the battery liquid dispensing assembly device further includes a screwing mechanism disposed opposite to the liquid dispensing mechanism and / or the liquid injection mechanism; The screwing mechanism includes a movable drive module, a rotary drive member, and a clamping component for clamping the container cover. The rotary drive member is installed on the movable drive module, and the clamping component is installed at the output end of the rotary drive member. The clamping component is used to close the container cover on the container body and to open the container cover from the container body.

[0013] Optionally, the battery liquid preparation and assembly equipment further includes a testing mechanism, which includes a first test seat, a second test seat, a test lifting drive member, and a test support seat; The first test seat is provided with a plurality of first receiving holes distributed at intervals, each of the first receiving holes is provided with a first conductive electrode, and the first conductive electrode is used to electrically connect to the first electrode of the battery shell; The second test seat is provided with a plurality of second receiving holes distributed at intervals, each of the second receiving holes is provided with a second conductive electrode, and the second conductive electrode is used to electrically connect to the second electrode of the battery shell; The first test seat is fixedly mounted on the test support seat, the second test seat is slidably mounted on the test support seat, and the test lifting drive member is mounted on the test support seat and connected to the second test seat; The test lifting drive is used to drive the second test seat to move toward or away from the first test seat.

[0014] In the present invention, the liquid dispensing mechanism can dispense electrolytes of different concentrations and different raw materials according to actual needs, and inject the prepared electrode liquid into the liquid storage container; the liquid injection mechanism can inject the prepared electrode liquid into the battery shell; the positive electrode insertion mechanism can rotate the positive electrode cap to a horizontal state and enter the battery shell; the sealing mechanism can bend the bottom of the battery shell inward and wrap it around the positive electrode cap. The battery liquid dispensing assembly equipment can perform electrolyte dispensing work on-site, improving the applicability and versatility of the battery liquid dispensing assembly equipment and facilitating the adjustment of the electrolyte; in addition, the battery liquid dispensing assembly equipment can perform assembly and hemming between the positive electrode cap and the battery shell, ensuring the sealing of the positive electrode cap on the battery shell; in addition, the battery liquid dispensing assembly equipment has a high degree of automation and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 It is a structural schematic diagram of a battery liquid preparation and assembly device provided by one embodiment of the present invention; Figure 2 1 is a schematic structural diagram of a liquid dispensing mechanism provided in one embodiment of the present invention; Figure 3 A schematic structural diagram of a liquid injection mechanism provided in one embodiment of the present invention; Figure 4 A schematic structural diagram of a positive electrode input mechanism provided in one embodiment of the present invention; Figure 5 A schematic structural diagram of a sealing mechanism provided in one embodiment of the present invention; Figure 6 1 is a schematic structural diagram of an upper mold assembly of a sealing mechanism provided by one embodiment of the present invention; Figure 7 This is a structural schematic diagram of an upper mold assembly of a sealing mechanism provided by an embodiment of the present invention from another perspective; Figure 8 2 is a schematic structural diagram of a first lower mold half assembly and a second lower mold half assembly of a sealing mechanism provided by one embodiment of the present invention; Figure 9 1 is a structural diagram of a shaking mechanism provided by an embodiment of the present invention; Figure 10 It is a structural schematic diagram of a screwing mechanism provided by one embodiment of the present invention; Figure 11 is a structural diagram of a testing mechanism provided by an embodiment of the present invention; Figure 12 Schematic diagram of the assembly process of a battery case and a positive electrode cap provided in one embodiment of the present invention.

[0017] The reference numerals in the specification are as follows: 1. Liquid dispensing mechanism; 11. Shaking drive component; 12. Liquid dispensing support frame; 13. Liquid dispensing needle; 2. Liquid injection mechanism; 21. Moving parts; 22. Liquid storage tank; 23. Liquid injection pump; 24. Storage seat; 241. Storage hole; 25. Liquid injection tube; 3. Positive electrode insertion mechanism; 31. Clamping assembly; 32. Press-in assembly; 321. Press-in lifting drive; 322. Press head; 33. Push-flat assembly; 331. Push-flat drive; 332. Push-flat seat; 333. Push rod; 34. Limit assembly; 341. Limit drive; 342. Limit seat; 3421. Side groove; 343. Slide plate; 4. Sealing mechanism; 41. Sealing lift drive; 42. First lower mold assembly; 421. First lower plate; 422. First docking member; 423. First lower mold; 4231. First mold groove; 43. Second lower mold assembly; 431. Second lower plate; 432. Second docking member; 433. Second lower mold; 4331. Second mold groove; 44. Upper mold assembly; 441. Mold groove; 442. Upper plate; 443. First wedge; 444. Second wedge; 445. Upper mold; 45. Sealing seat; 46. Support guide block; 461. Storage slot; 47. First guide rail; 5. Shaking mechanism; 51. Shaking seat; 52. Shaking drive assembly; 521. Shaking drive member; 522. Support block; 523. Third elastic member; 524. Push plate; 53. Shaking support plate; 54. Fixture; 6. Screwing mechanism; 61. Moving drive module; 62. Rotating drive member; 63. Clamping member; 7. Test mechanism; 71. First test seat; 72. Second test seat; 721. Second receiving hole; 73. Test support seat; 100. Liquid storage container; 201. Battery shell; 202. Positive electrode cap. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] like Figure 1 As shown, a battery liquid preparation and assembly device provided by an embodiment of the present invention includes a liquid preparation mechanism 1, a liquid injection mechanism 2, a positive electrode insertion mechanism 3 and a sealing mechanism 4; like Figure 2 As shown, the liquid dispensing mechanism 1 includes a shaking driving member 11, a liquid dispensing support frame 12, and a plurality of liquid dispensing needles 13 installed at intervals on the liquid dispensing support frame 12. The liquid dispensing support frame 12 is installed on the shaking driving member 11. The liquid dispensing needles 13 are used to inject electrolyte into the liquid storage container 100. like Figure 3 As shown, the injection mechanism 2 includes a moving part 21, a liquid storage tank 22, and an injection pump 23 installed on the liquid storage tank 22. The liquid storage tank 22 is installed on the moving part 21; the injection pump 23 is used to extract the electrolyte in the liquid storage container 100 into the liquid storage tank 22, and to inject the electrolyte in the liquid storage tank 22 into the battery shell 201; wherein, the battery shell 201 is connected to an upright positive electrode cap 202; like Figure 4As shown, the positive electrode insertion mechanism 3 includes a clamping assembly 31 and a pressing assembly 32; the clamping assembly 31 is used to clamp the battery shell 201, and the pressing assembly 32 includes a pressing lifting driving member 321 and a pressing head 322 installed at the output end of the pressing lifting driving member 321. The pressing lifting driving member 321 is used to drive the pressing head 322 to move, and the pressing head 322 drives the positive electrode cap 202 to rotate to a horizontal state and enter the battery shell 201; like Figure 5 As shown, the sealing mechanism 4 includes a sealing lifting drive member 41, a first lower half mold assembly 42, a second lower half mold assembly 43 and an upper mold assembly 44 provided with a mold groove 441; the output end of the sealing lifting drive member 41 is connected to the upper mold assembly 44; the first lower half mold assembly 42 and the second lower half mold assembly 43 are used to clamp the battery shell 201; the sealing lifting drive member 41 is used to drive the upper mold assembly 44 to move downward, and the upper mold assembly 44 is covered on the first lower half mold assembly 42, the second lower half mold assembly 43 and the battery shell 201 through the mold groove 441, and the upper mold assembly 44 drives the upper part of the battery shell 201 to bend inward and wrap around the positive cap 202.

[0020] In the liquid dispensing mechanism 1, the shaking drive 11 includes but is not limited to a shaking cylinder, a shaking motor, etc. The shaking drive 11 can not only drive the liquid dispensing support frame 12 to move up and down, but also drive the liquid dispensing support frame 12 to shake at a high frequency. The number of liquid dispensing needles 13 can be set according to actual needs. Each liquid dispensing needle 13 is connected to multiple injection pumps 23. The injection pumps 23 can draw electrolyte onto the liquid dispensing needle 13, and then inject it into the liquid storage container 100 through the liquid dispensing needle 13. The injection pumps 23 include but are not limited to peristaltic pumps, etc. The shaking drive 11 can drive the liquid dispensing support frame 12 and the liquid dispensing needle 13 to shake at a high frequency, avoiding the phenomenon of liquid hanging on the liquid dispensing needle 13, thereby improving the liquid dispensing accuracy and cleanliness of the liquid dispensing mechanism 1.

[0021] In the injection mechanism 2, the moving part 21 can be a robotic arm or a moving module composed of multiple moving parts; the moving part 21 can drive the liquid storage tank 22 and the injection pump 23 to move, so that the injection pump 23 can dock with the liquid storage container 100 and the battery shell 201.

[0022] In the positive electrode insertion mechanism 3, the pressing and lifting drive 321 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder, a screw nut assembly, etc.; the clamping assembly 31 includes a clamping movable drive and a clamping cylinder mounted on the movable drive. The clamping cylinder is used to clamp or loosen the battery shell 201. The clamping movable member can move the clamping cylinder to the bottom of the pressing head 322, or move it to a place away from the pressing head 322. The pressing and lifting drive 321 drives the pressing head 322 to descend, and the pressing head 322 can drive the positive electrode cap 202 in the vertical state to rotate to a horizontal state and enter the battery shell 201.

[0023] In the sealing mechanism 4, the sealing lifting drive 41 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder, a screw nut assembly, etc.; the upper mold assembly 44 is located above the first lower mold assembly 42 and the second lower mold assembly 43; the mold groove 441 opens downward. After the battery shell 201 moves between the first lower mold assembly 42 and the second lower mold assembly 43, the first lower mold assembly 42 and the second lower mold assembly 43 merge to clamp the battery shell 201; the sealing lifting drive 41 drives the upper mold assembly 44 downward until the upper mold assembly 44 is inserted through the mold groove 441 and fits over the first lower mold assembly 42 and the second lower mold assembly 43. Because the wall thickness of the upper portion of the battery shell 201 is less than that of the lower portion, as the downward pressure of the upper mold assembly 44 increases, the upper portion of the battery shell 201 bends inward and wraps around the positive electrode cap 202, thereby sealing the positive electrode cap 202 to the battery shell 201.

[0024] In the present invention, the liquid dispensing mechanism 1 can dispense electrolytes of different concentrations and different raw materials according to actual needs, and inject the prepared electrode liquid into the liquid storage container 100; the liquid injection mechanism 2 can inject the prepared electrode liquid into the battery shell 201; the positive electrode insertion mechanism 3 can rotate the positive electrode cap 202 to a horizontal state and enter the battery shell 201; the sealing mechanism 4 can bend the bottom of the battery shell 201 inward and wrap it around the positive electrode cap 202. The battery liquid dispensing assembly equipment can perform the electrolyte dispensing work on site, improve the applicability and versatility of the battery liquid dispensing assembly equipment, and facilitate the adjustment of the electrolyte; in addition, the battery liquid dispensing assembly equipment can perform the assembly and hemming actions between the positive electrode cap 202 and the battery shell 201, ensuring the sealing of the positive electrode cap 202 covering the battery shell 201; in addition, the battery liquid dispensing assembly equipment has a high degree of automation and high work efficiency.

[0025] In one embodiment, if Figure 4 As shown, the positive electrode feeding mechanism 3 further includes a pushing component 33 and a limiting component 34; The flattening assembly 33 includes a flattening driving member 331, a flattening seat 332, a first elastic member (not shown), and a push rod 333 slidably mounted on the flattening seat 332; the flattening seat 332 is mounted on the output end of the flattening driving member 331, and the first elastic member is mounted on the push rod 333 and abuts against the flattening seat 332; The limiting assembly 34 includes a limiting driving member 341 and a limiting seat 342 having a side groove 3421 , wherein the side groove 3421 is adapted to fit the battery shell 201 ; the limiting seat 342 is installed at the output end of the limiting driving member 341 ; The flattening drive member 331 is used to drive the flattening seat 332 to move toward the end close to the limit assembly 34, and the push rod 333 drives the positive electrode cap 202 to rotate from a vertical state to a horizontal state; the limit driving member 341 is used to drive the limit seat 342 to move toward the end close to the flattening assembly 33 until the inner wall of the side groove 3421 abuts against the battery shell 201, and the limit seat 342 drives the battery shell 201 to rotate to a vertical state; The pressing and lifting driving member 321 is used to drive the pressing head 322 to move, and the pressing head 322 drives the positive electrode cap 202 to rotate to a horizontal state and enter the battery shell 201.

[0026] The push-flattening drive element 331 includes, but is not limited to, a pneumatic cylinder, a hydraulic cylinder, and a linear motor. The first elastic element includes, but is not limited to, a spring, and can be sleeved onto the push rod 333. The push-flattening seat 332 is provided with a first sliding hole, into which one end of the push rod 333 slides. The side groove 3421 is a semicircular groove. The position-limiting drive element 341 includes, but is not limited to, a pneumatic cylinder, a hydraulic cylinder, and a linear motor.

[0027] Specifically, the clamping assembly 31 clamps the battery shell 201; the flattening drive 331 drives the flattening seat 332 to move toward one end close to the limiting assembly 34, and the push rod 333 drives the positive cap 202 to rotate from a vertical state to a horizontal state on the battery shell 201; the limiting drive 341 drives the limiting seat 342 to move toward one end close to the flattening assembly 33, and the limiting seat 342 drives the positive cap 202 to rotate from a horizontal state to a vertical state until the inner wall of the side groove 3421 abuts against the battery shell 201; the pressing and lifting drive 321 drives the pressure head 322 to descend, and the pressure head 322 can drive the positive cap 202 in the vertical state to rotate to a horizontal state and enter the battery shell 201.

[0028] In this embodiment, the limiting seat 342 can achieve precise positioning with the battery shell 201 through the side groove 3421, so that the limiting seat 342 can drive the positive cap 202 to stand upright directly above the battery shell 201 (the axis of the battery shell 201 is perpendicular to the axis of the positive cap 202), ensuring the stability and coaxiality of the positive cap 202 driven by the pressure head 322 to cover the battery shell 201; avoiding the phenomenon of misalignment between the positive cap 202 and the battery shell 201.

[0029] In one embodiment, if Figure 4 As shown, the limiting assembly 34 further includes a slide plate 343 and a second elastic member (not shown in the figure). The slide plate 343 is slidably mounted on the limiting seat 342 and extends into the side groove 3421. The second elastic member is mounted on the slide plate 343 and abuts against the limiting seat 342. When the limiting seat 342 moves to the inner wall of the side groove 3421 and abuts the battery shell 201, the battery shell 201 drives the slide plate 343 to move and compress the second elastic member, and the positive cap 202 drives the push rod 333 to move toward the end away from the limiting assembly 34.

[0030] The limiting seat 342 is provided with a sliding groove, and the slide plate 343 is slidably inserted into the sliding groove; the second elastic member includes but is not limited to a spring.

[0031] Specifically, when the limiting seat 342 moves toward the battery shell 201 , the battery shell 201 will drive the slide plate 343 to move and compress the second elastic member, thereby avoiding a hard collision accident between the battery shell 201 and the limiting seat 342 .

[0032] In one embodiment, if Figures 5 to 8 As shown, the sealing mechanism 4 further includes a sealing seat 45; the upper mold assembly 44 includes an upper plate 442, a first wedge 443, a second wedge 444, and an upper mold 445 having a mold groove 441. The upper plate 442 is slidably mounted on the sealing seat 45 along a first direction. The sealing lifting drive member 41 is mounted on the sealing seat 45 and connected to the upper plate 442. The upper mold 445, the first wedge 443, and the second wedge 444 are all mounted on the upper plate 442. The first lower mold assembly 42 includes a first lower plate 421, a first docking member 422, and a first lower mold 423 having a first mold groove 4231. The first lower mold 423 is slidably mounted on the sealing seat 45 along the second direction. The first lower mold 423 is mounted on the first lower plate 421 and protrudes toward the upper mold 445. The first direction is perpendicular to the second direction. The second lower mold assembly 43 includes a second lower plate 431, a second docking member 432, and a second lower mold 433 having a second mold groove 4331. The second lower mold 433 is slidably mounted on the sealing seat 45 along the second direction. The second lower mold 433 is mounted on the second lower plate 431 and protrudes toward the upper mold 445. The sealing lifting drive member 41 is used to drive the upper plate 442 to move in the first direction, the first wedge 443 is used to drive the first lower plate 421 to move in the second direction through the first docking member 422, and the second wedge 444 is used to drive the second lower plate 431 to move in the second direction through the second docking member 432. The first lower half mold 423 and the second lower half mold 433 surround and clamp the battery shell 201 in the first half mold groove 4231 and the second half mold groove 4331. The upper mold 445 is covered on the first lower half mold assembly 42, the second lower half mold assembly 43 and the battery shell 201 through the mold groove 441, and the upper mold 445 drives the upper part of the battery shell 201 to bend inward and wrap around the positive cap 202.

[0033] The first wedge 443, the second wedge 444, and the upper mold 445 are all mounted below the upper plate 442. The first docking member 422 is mounted above the first lower plate 421, and the second docking member 432 is mounted above the second lower plate 431. The first lower mold is mounted on the side of the first lower plate 421 facing the second lower plate 431, and the second lower mold half 433 is mounted on the side of the second lower plate 431 facing the first lower plate 421.

[0034] Specifically, the sealing lifting drive 41 drives the upper plate 442 to descend in the first direction, the first wedge 443 on the upper plate 442 abuts against the first docking member 422 and drives the first lower plate 421 to move along the second direction, and the second wedge 444 on the upper plate 442 abuts against the second docking member 432 and drives the second lower plate 431 to move along the second direction, the first lower half mold 423 and the second lower half mold 433 are merged to clamp the battery shell 201 from opposite sides, and the battery shell 201 is positioned in the first half mold groove 4231 and the second half mold groove 4331; the upper plate 442 continues to move downward, and the upper mold 445 will cover the merged first lower half mold 423 and second lower half mold 433, and the top of the battery shell 201 is inserted into the mold groove 441; the downward pressure of the upper mold assembly 44 causes the upper part of the battery shell 201 to bend inward and wrap around the positive cap 202.

[0035] In this embodiment, the upper mold assembly 44 can not only drive the first lower mold assembly 42 and the second lower mold assembly 43 to close the mold through the first wedge block 443 and the second wedge block 444, but can also cover the first lower mold assembly 42 and the second lower mold assembly 43 to drive the upper part of the battery shell 201 to bend inward and wrap around the positive cap 202; the sealing mechanism 4 has a simple structure, low manufacturing cost, high stability, and ensures the sealing quality of the battery.

[0036] In one embodiment, if Figure 5 and Figure 8 As shown, the sealing mechanism 4 further includes a support guide block 46 and a first guide rail 47 mounted on the sealing seat 45. The support guide block 46 is provided with a first guide groove adapted to the first guide rail 47. The support guide block 46 is slidably mounted on the first guide rail 47 along the third direction through the first guide groove. The first direction, the second direction, and the third direction are perpendicular to each other. The support guide block 46 is provided with a storage slot 461 for storing the battery shell 201 .

[0037] The support guide block 46 is positioned below the first lower plate 421 and the second lower plate 431. The first guide rail 47 is fixedly mounted on the sealing base 45 along the third direction. The support guide block 46 can store multiple battery shells 201 spaced apart along the third direction. Furthermore, a magnetic element is provided within the storage slot 461 for attracting the battery shells 201. The battery sealing mechanism 4 also includes a movable drive element, the output end of which is connected to the support guide block 46, which is used to drive the support guide block 46 to move along the third direction.

[0038] Specifically, when the first lower mold half 423 and the second lower mold half 433 are closed, the first lower mold half 423 and the second lower mold half 433 can clamp the battery shell 201 on the support guide block 46, and during the clamping process, the battery shell 201 can move along the second direction, thereby ensuring the position accuracy of the battery shell 201 during the closing process of the upper mold assembly 44 and the first lower mold half assembly 42 and the second lower mold half assembly 43.

[0039] In one embodiment, if Figure 3 As shown, the injection mechanism 2 further includes a storage seat 24 , which is provided with a plurality of storage holes 241 distributed at intervals. Each storage hole 241 is used to store an injection tube 25 , and the injection tube 25 is detachably connected to the injection pump 23 .

[0040] The storage seat 24 is arranged next to the moving part 21. The injection tube 25 is a consumable material. For different electrode liquids, the injection pump 23 can replace a new injection tube 25, avoiding the accident of contamination between different electrolytes.

[0041] Specifically, the moving component 21 can drive the liquid storage tank 22 and the injection pump 23 to move to the storage seat 24, so that the injection pump 23 can place its old injection tube 25 into the storage hole 241 and replace it with a new injection tube 25; the injection pump 23 absorbs the electrolyte in the liquid storage container 100 through the injection tube 25, and injects the electrolyte in the liquid storage tank 22 into the battery shell 201 through the injection tube 25.

[0042] In one embodiment, if Figure 1 and Figure 9 As shown, the battery liquid preparation and assembly equipment further includes a shaking mechanism 5; the shaking mechanism 5 includes a shaking seat 51, a shaking drive assembly 52, and a shaking support plate 53 slidably mounted on the shaking seat 51, the shaking support plate 53 being used to support a fixture 54 on which a liquid storage container 100 is mounted; the shaking drive assembly 52 is used to drive the shaking support plate 53 to reciprocate on the shaking seat 51 to shake the electrolyte in the liquid storage container 100; The liquid dispensing mechanism 1 injects the electrolyte into the liquid storage container 100 . After the shaking mechanism 5 shakes the electrolyte in the liquid storage container 100 , the liquid injection mechanism 2 extracts the electrolyte in the liquid storage container 100 into the liquid storage tank 22 .

[0043] Among them, the shaking drive component 52 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder and a linear motor; the shaking support plate 53 can be slidably installed on the shaking seat 51 through a guide rail slider assembly, a guide rod sliding sleeve assembly, etc.; the fixture 54 can store multiple liquid storage containers 100 at a time.

[0044] Specifically, after the liquid preparation mechanism 1 injects the prepared electrolyte into the liquid storage container 100, the liquid storage container 100 is placed on the jig 54, and the jig 54 and the liquid storage container 100 are placed together on the shaking support plate 53, and the shaking drive assembly 52 drives the shaking support plate 53 to move back and forth, so that the electrolyte in the liquid storage container 100 can be shaken; after the shaking mechanism 5 shakes the electrolyte in the liquid storage container 100, the liquid injection mechanism 2 extracts the shaken electrode liquid into the liquid storage tank 22, thereby ensuring the quality of the electrolyte in the liquid storage tank 22, and thereby improving the quality of the electrolyte injected into the battery shell 201.

[0045] In one embodiment, if Figure 9 As shown, the shake drive assembly 52 includes a shake drive member 521, a support block 522, a third elastic member 523 and a push plate 524; the push plate 524 is provided with a slide rod, the support block 522 is provided with a slide hole, the slide rod is slidably inserted into the slide hole, and the third elastic member 523 is sleeved on the slide rod and abuts against the support block 522; The support block 522 is installed at the output end of the shaking driving member 521 , and the push plate 524 is connected to the shaking support plate 53 .

[0046] The shaking driving component 521 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder, and a linear motor, etc.; the third elastic component 523 includes but is not limited to a spring, etc.

[0047] Specifically, during the process of the shaking driving member 521 driving the support block 522 to move back and forth, the support block 522 drives the shaking support plate 53 to move back and forth through the push plate 524. Since the sliding rod on the push rod 333 is slidably inserted into the sliding hole of the support block 522, the push plate 524 will compress the third elastic member 523, so that there is flexible contact between the support block 522 and the push plate 524, thereby avoiding the accident of the liquid storage container 100 shaking too much during the process of the shaking mechanism 5 shaking the electrolyte in the liquid storage container 100.

[0048] In one embodiment, if Figure 1 and Figure 10As shown, the liquid storage container 100 includes a container body and a container cover detachably mounted on the container body; the battery liquid dispensing assembly device further includes a screwing mechanism 6 disposed opposite to the liquid dispensing mechanism 1 and / or the liquid injection mechanism 2; The screwing mechanism 6 includes a movable drive module 61, a rotary drive member 62 and a clamping component 63 for clamping the container cover. The rotary drive member 62 is installed on the movable drive module 61, and the clamping component 63 is installed at the output end of the rotary drive member 62; the clamping component 63 is used to close the container cover on the container body and to open the container cover from the container body.

[0049] Among them, the container cover is detachably covered on the container body through a threaded structure; the movable drive module 61 can drive the rotating drive member 62 and the clamping member 63 to move along the first direction, the second direction and the third direction; the rotating drive member 62 includes but is not limited to a motor, etc.; the clamping member 63 includes a clamping cylinder and a first clamping jaw and a second clamping jaw installed on the clamping cylinder, and the clamping cylinder can drive the first clamping jaw and the second clamping jaw to merge and open.

[0050] Specifically, the clamping component 63 clamps the containing cover, and the rotating driving component 62 can drive the clamping component 63 to rotate, so that the clamping component 63 can cover the containing cover on the containing body, or remove the containing cover from the containing body; the moving driving module 61 can drive the rotating driving component 62 and the clamping component 63 to move along the first direction, the second direction and the third direction, so that the screwing mechanism 6 can also transfer the liquid storage container 100 between the liquid dispensing mechanism 1, the shaking mechanism 5 and the liquid injection mechanism 2.

[0051] After the liquid dispensing mechanism 1 injects the prepared electrolyte into the container body, the screwing mechanism 6 closes the containing cover on the containing body; at the liquid filling station, the screwing mechanism 6 can remove the containing cover from the containing body, so that the liquid filling pump 23 can extract the electrolyte in the containing body into the liquid storage tank 22.

[0052] In this embodiment, the screwing mechanism 6 can not only screw and open the lid, but also transfer the liquid storage container 100, thereby improving the automation level and processing efficiency of the battery liquid preparation and assembly equipment.

[0053] In one embodiment, if Figure 1 and Figure 11 As shown, the battery liquid preparation and assembly equipment further includes a testing mechanism 7, which includes a first testing seat 71, a second testing seat 72, a testing lifting drive member (not shown in the figure) and a testing support seat 73; The first test seat 71 is provided with a plurality of first receiving holes (not shown in the figure) distributed at intervals, each of which is provided with a first conductive electrode (not shown in the figure), which is used to electrically connect to the first electrode of the battery shell 201; The second test seat 72 is provided with a plurality of second receiving holes 721 spaced apart from each other. Each second receiving hole 721 is provided with a second conductive electrode (not shown in the figure). The second conductive electrode is used to electrically connect to the second electrode of the battery shell 201. The first test seat 71 is fixedly mounted on the test support seat 73 , the second test seat 72 is slidably mounted on the test support seat 73 , and the test lifting drive member is mounted on the test support seat 73 and connected to the second test seat 72 ; The test lifting drive member is used to drive the second test seat 72 to move toward or away from the first test seat 71 .

[0054] Among them, the second test seat 72 can be slidably installed on the test support seat 73 through a guide rod sliding assembly, a guide rail slider assembly, etc.; the first conductive electrode and the second conductive electrode are both electrically connected to the testing machine; the opening of the first accommodating hole faces upward, and the opening of the second accommodating hole 721 faces downward; the test lifting drive parts include but are not limited to pneumatic cylinders, hydraulic cylinders, and screw nut assemblies.

[0055] Specifically, after the sealing mechanism 4 achieves the edge seal between the positive cap 202 and the battery shell 201, the battery shell 201 is placed in the first receiving hole, and the test lifting drive member drives the second test seat 72 to approach the first test seat 71 until the second test seat 72 covers the first test seat 71, and the first electrode (negative electrode) of the battery shell 201 is electrically connected to the first conductive electrode, and the second electrode (positive electrode) of the positive cap 202 is electrically connected to the second conductive electrode, so that the testing mechanism 7 can realize the resistance, charge and discharge and other tests of the battery.

[0056] It should be noted that the battery liquid preparation and assembly equipment in the present application may also be configured with a robotic arm, which can transport the liquid storage container 100, the battery shell 201, etc. between various workstations; The working process of the battery liquid preparation and assembly equipment is as follows: liquid preparation mechanism 1, shaking mechanism 5, liquid injection mechanism 2, positive electrode insertion mechanism 3, sealing mechanism 4, and testing mechanism 7.

[0057] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A battery liquid preparation and assembly equipment, characterized in that: It includes liquid dispensing mechanism, liquid injection mechanism, positive electrode insertion mechanism and sealing mechanism; The liquid dispensing mechanism includes a shaking driving member, a liquid dispensing support frame, and a plurality of liquid dispensing needles installed at intervals on the liquid dispensing support frame, wherein the liquid dispensing support frame is installed on the shaking driving member, and the liquid dispensing needles are used to inject electrolyte into the liquid storage container; The injection mechanism includes a moving part, a liquid storage tank, and an injection pump mounted on the liquid storage tank, wherein the liquid storage tank is mounted on the moving part; the injection pump is used to extract the electrolyte in the liquid storage container into the liquid storage tank, and to inject the electrolyte in the liquid storage tank into the battery shell; wherein the battery shell is connected to an upright positive electrode cap; The positive electrode insertion mechanism includes a clamping assembly and a pressing assembly; the clamping assembly is used to clamp the battery shell, and the pressing assembly includes a pressing lifting drive member and a pressing head installed at the output end of the pressing lifting drive member, and the pressing lifting drive member is used to drive the pressing head to move, and the pressing head drives the positive electrode cap to rotate to a horizontal state and enter the battery shell; The sealing mechanism includes a sealing lifting drive, a first lower half mold assembly, a second lower half mold assembly and an upper mold assembly provided with a mold groove; the output end of the sealing lifting drive is connected to the upper mold assembly; the first lower half mold assembly and the second lower half mold assembly are used to clamp the battery shell; the sealing lifting drive is used to drive the upper mold assembly to move downward, and the upper mold assembly is covered on the first lower half mold assembly, the second lower half mold assembly and the battery shell through the mold groove, and the upper mold assembly drives the upper part of the battery shell to bend inward and wrap around the positive electrode cap.

2. The battery liquid preparation and assembly equipment according to claim 1, characterized in that: The positive electrode insertion mechanism also includes a pushing component and a limiting component; The flattening assembly includes a flattening drive member, a flattening seat, a first elastic member, and a push rod slidably mounted on the flattening seat; the flattening seat is mounted on the output end of the flattening drive member, and the first elastic member is mounted on the push rod and abuts against the flattening seat; The limiting assembly includes a limiting driving member and a limiting seat with a side groove, wherein the side groove is adapted to the battery shell; the limiting seat is installed at the output end of the limiting driving member; The push-flattening drive member is used to drive the push-flattening seat to move toward one end close to the limit assembly, and the push rod drives the positive electrode cap to rotate from a vertical state to a horizontal state; the limit driving member is used to drive the limit seat to move toward one end close to the push-flattening assembly until the inner wall of the side groove abuts against the battery shell, and the limit seat drives the battery shell to rotate to a vertical state; The pressing-in lifting drive member is used to drive the pressing head to move, and the pressing head drives the positive electrode cap to rotate to a horizontal state and enter the battery shell.

3. The battery liquid preparation and assembly equipment according to claim 2, characterized in that: The limiting assembly further includes a slide plate and a second elastic member, wherein the slide plate is slidably mounted on the limiting seat and extends into the side groove, and the second elastic member is mounted on the slide plate and abuts against the limiting seat; When the limiting seat moves to the inner wall of the side groove and abuts against the battery shell, the battery shell drives the slide to move and compresses the second elastic member, and the positive electrode cap drives the push rod to move toward the end away from the limiting assembly.

4. The battery liquid preparation and assembly equipment according to claim 1, characterized in that: The sealing mechanism further includes a sealing seat; the upper mold assembly includes an upper plate, a first wedge, a second wedge, and an upper mold having the mold groove; the upper plate is slidably mounted on the sealing seat along a first direction; the sealing lifting drive member is mounted on the sealing seat and connected to the upper plate; the upper mold, the first wedge, and the second wedge are all mounted on the upper plate; The first lower mold half assembly includes a first lower plate, a first docking member, and a first lower mold half having a first mold half groove. The first lower mold half is slidably mounted on the sealing seat along a second direction. The first lower mold half is mounted on the first lower plate and protrudes toward the upper mold. The first direction is perpendicular to the second direction. The second lower mold half assembly includes a second lower plate, a second docking member, and a second lower mold half having a second mold half groove. The second lower mold half is slidably mounted on the sealing seat along a second direction. The second lower mold half is mounted on the second lower plate and protrudes toward the upper mold. The sealing lifting drive member is used to drive the upper plate to move in the first direction, the first wedge is used to drive the first lower plate to move in the second direction through the first docking member, and the second wedge is used to drive the second lower plate to move in the second direction through the second docking member. The first lower half mold and the second lower half mold are surrounded and the battery shell is clamped in the first half mold groove and the second half mold groove. The upper mold is covered on the first lower half mold assembly, the second lower half mold assembly and the battery shell through the mold groove, and the upper mold drives the upper part of the battery shell to bend inward and wrap around the positive cap.

5. The battery liquid preparation and assembly equipment according to claim 4, characterized in that: The sealing mechanism further includes a support guide block and a first guide rail mounted on the sealing seat, wherein the support guide block is provided with a first guide groove adapted to the first guide rail, and the support guide block is slidably mounted on the first guide rail along a third direction through the first guide groove; wherein the first direction, the second direction, and the third direction are perpendicular to each other; The supporting guide block is provided with a storage groove for storing the battery shell.

6. The battery liquid preparation and assembly equipment according to claim 1, characterized in that: The injection mechanism further comprises a storage seat, on which a plurality of storage holes are provided at intervals, each of the storage holes being used to store an injection tube, and the injection tube is detachably connected to the injection pump.

7. The battery liquid preparation and assembly equipment according to claim 1, characterized in that: The battery liquid preparation and assembly equipment further includes a shaking mechanism; the shaking mechanism includes a shaking seat, a shaking drive assembly, and a shaking support plate slidably mounted on the shaking seat, the shaking support plate being used to support a fixture on which the liquid storage container is mounted; the shaking drive assembly is used to drive the shaking support plate to reciprocate on the shaking seat to shake the electrolyte in the liquid storage container; The liquid dispensing mechanism injects the electrolyte into the liquid storage container, and after the shaking mechanism shakes the electrolyte in the liquid storage container, the liquid injection mechanism extracts the electrolyte in the liquid storage container into the liquid storage tank.

8. The battery liquid preparation and assembly equipment according to claim 7, characterized in that: The shake drive assembly includes a shake drive member, a support block, a third elastic member, and a push plate; the push plate is provided with a slide rod, the support block is provided with a slide hole, the slide rod is slidably inserted into the slide hole, and the third elastic member is sleeved on the slide rod and abuts against the support block; The support block is installed at the output end of the shaking drive component, and the push plate is connected to the shaking support plate.

9. The battery liquid preparation and assembly equipment according to claim 1, characterized in that: The liquid storage container includes a container body and a container cover detachably mounted on the container body; the battery liquid dispensing assembly equipment further includes a screwing mechanism disposed opposite to the liquid dispensing mechanism and / or the liquid injection mechanism; The screwing mechanism includes a movable drive module, a rotary drive member, and a clamping component for clamping the container cover. The rotary drive member is installed on the movable drive module, and the clamping component is installed at the output end of the rotary drive member. The clamping component is used to close the container cover on the container body and to open the container cover from the container body.

10. The battery liquid preparation and assembly equipment according to claim 1, characterized in that: The battery liquid preparation and assembly equipment further includes a testing mechanism, which includes a first test seat, a second test seat, a test lifting drive member, and a test support seat; The first test seat is provided with a plurality of first receiving holes distributed at intervals, each of the first receiving holes is provided with a first conductive electrode, and the first conductive electrode is used to electrically connect to the first electrode of the battery shell; The second test seat is provided with a plurality of second receiving holes distributed at intervals, each of the second receiving holes is provided with a second conductive electrode, and the second conductive electrode is used to electrically connect to the second electrode of the battery shell; The first test seat is fixedly mounted on the test support seat, the second test seat is slidably mounted on the test support seat, and the test lifting drive member is mounted on the test support seat and connected to the second test seat; The test lifting drive is used to drive the second test seat to move toward or away from the first test seat.

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