A feeding and discharging method and device for lithium battery drying process

Abstract

The application provides a feeding and discharging method and device for a lithium battery drying process, and the feeding and discharging device for the lithium battery drying process comprises a trolley frame, sliding rail assemblies respectively arranged at work stations one and two and a battery heating jig block, and the trolley frame is installed on a latent traction AGV trolley; the trolley frame is connected with a trolley arm through a lifting device, and the two sides of the trolley arm are respectively connected with the trolley frame through sliding rails. The AGV trolley is used to drive the trolley frame to travel and stop on a designated road, and the complicated work station transfer work is replaced by a mechanical device, so that the factory workshop automation can be realized; meanwhile, the space resources of the factory can be greatly saved, and the space utilization of the factory is increased; and the movement and stop of the feeding and discharging device, the start and stop of the motor, the up and down movement of the trolley arm and the extension and retraction of the jig pushing and pulling device are all controlled by a program, the force control is appropriate, and the battery and the oven are prevented from being damaged.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery equipment production, and in particular to a loading and unloading method and equipment for a lithium battery drying process. Technical Background

[0002] On a lithium battery production line, after the positive and negative cells and separators are wound and assembled into casings, the battery needs to be filled with liquid. After filling, the batteries need to be dried. Typically, at station one, the filled batteries are placed in a mold and then transferred to an oven. After drying, the mold is moved from the oven to station two. Each mold holds 150-200 cylindrical batteries. Each cylindrical lithium battery weighs approximately 500g after filling, bringing the total weight of the mold and batteries to over 180kg. Larger batteries weigh even more. Traditionally, forklifts are used to transfer a heating jig filled with filled batteries from station one to the heating box, or from the heating box to station two. Forklifts require a large workspace, which wastes factory space and reduces space utilization. They also hinder factory automation. Furthermore, improper forklift control can scratch the oven walls, causing irreversible damage to the batteries and the oven.

[0003] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide an improved loading and unloading method and equipment for a lithium battery drying process to address the deficiencies in the above-mentioned background technology, so as to adapt to automated workshops.

[0005] In order to achieve the above object, the present invention provides a loading and unloading method for a lithium battery drying process, comprising the following steps:

[0006] An up and down feeding equipment for lithium battery drying process, including trolley frame, sliding rail assembly respectively arranged in work station one and work station two and battery heating jig block, trolley frame is installed on AGV trolley of latent traction type; trolley frame is connected with trolley arm through lifting device, and the two sides of trolley arm are slidably connected with trolley frame through slide rail respectively;T-shaped left arm and T-shaped right arm are included in trolley arm;Left arm and right arm are connected through arm connecting plate;First step is formed in the inner side of left arm and right arm, and positioning port one is also formed in the front end of the inner side of left arm and right arm;Jig push-pull device is installed in the middle of arm connecting plate, jig push-pull device includes linear module, jig push-pull arm is installed on linear module, and cylinder is installed at the front end of jig push-pull arm;Push rod assembly is installed on the outer side of left arm and right arm, and the push rod assembly includes push rod connecting plate, push rod connecting plate two is connected with push rod connecting plate through electric push rod, and push rod connecting plate two is slidably connected with push rod connecting plate two through sliding block;Push rod connecting plate three is connected with push rod connecting plate two, and cam bearing follower is connected with the inner side of push rod connecting plate three;The sliding rail assembly includes two mutually parallel sliding rails, the sliding rail is connected with scissor upper connecting plate through scissor lifting structure, the second step is formed in the inner side of scissor upper connecting plate, the positioning port two is formed in the outer side of the front end of scissor upper connecting plate, the L-shaped push plate is connected with the top front end of scissor upper connecting plate, and the first slope is formed in the front end of the bottom of push plate;The top of battery heating jig block is fixed with placing rack push-pull plate, a plurality of wheels are installed, and battery heating jig block is on trolley frame or sliding rail assembly.

[0007] Further improvement, the work station one is drying box.

[0008] Further improvement, the lifting device includes toothed belt on the two sides of trolley frame, the one end of toothed belt is connected with counterweight, and the other end is connected with trolley arm;Trolley arm and counterweight are respectively on the two sides of trolley frame;Toothed belt is engaged with gear, and gear is connected with servo motor.

[0009] Further improvement, the front end and rear end of the top of left arm and right arm are connected through upper arm two and upper arm one respectively.

[0010] Further improvement, there are eight wheels with diameter mm on the left and right sides of battery heating jig block;The front end of placing rack push-pull plate is fixed on battery heating jig block.

[0011] Further improvement, the scissor lifting structure includes two connecting rods hingedly connected in the middle, one end of the two connecting rods is connected with pulley, the other end of one connecting rod is hingedly connected on sliding rail, and the other is hingedly connected on scissor upper connecting plate;The front end and rear end of sliding rail and scissor upper connecting plate are connected through a scissor lifting structure respectively.

[0012] Further improvement, the trolley frame is welded by 70mm*70mm stainless steel material; two six-inch directional wheels and two six-inch universal wheels are installed below the trolley frame.

[0013] Further improvement, four air cylinders are installed on the jig push-pull arm, the four air cylinders are arranged in two rows, and a first gap is formed between the two rows of air cylinders.

[0014] Further improvement, the first step and the second step are both 18mm wide and 13mm high.

[0015] A feeding and discharging method for lithium battery drying process, using the feeding and discharging equipment for lithium battery drying process, specifically comprising the following steps:

[0016] Step one: the feeding and discharging equipment is driven by program to reach station one, and the height of the trolley arm is adjusted until the cam bearing follower on the push rod assembly can contact the first slope;

[0017] Step two: the electric push rod on the push rod assembly starts to move, the push rod extends, driving the cam bearing follower to push out; during the pushing process, the cam bearing follower will contact and slide on the first slope, and as the cam bearing follower continues to extend, it will make the upper connecting plate of the scissor assembly raise by 10mm, at this time, the first step inside the trolley arm and the second step on the sliding rail assembly are horizontally matched;

[0018] Step three: the jig push-pull device extends until the first gap between the air cylinders on the jig push-pull device matches the position of the placement rack push-pull plate; at the same time, the air cylinders are started, the electric push rod of the air cylinder extends, clamping the placement rack push-pull plate, and the battery heating jig block is pulled into the feeding and discharging equipment from station one; then, the push rod assembly is retracted, the cam bearing follower slides off the first slope, and the upper connecting plate of the scissor assembly returns to the original position;

[0019] Step four: the feeding and discharging equipment with the battery heating jig block reaches the drying box according to the specified road, makes the first step and the second step horizontally matched according to the method of step two, and then pushes the battery heating jig block into the drying box from the equipment; when it is completely pushed in, the air cylinder stops, the air cylinder rod retracts, the jig push-pull device retreats, and the push rod assembly retracts;

[0020] Step five: after the battery heating jig block is dried in the drying box, the feeding and discharging equipment adjusts the height of the trolley arm according to the height of the number of layers of the drying box, makes the first step and the second step horizontally matched according to the method of step two, and pulls the battery heating jig block into the feeding and discharging equipment from the drying box according to the process of step three; then, the feeding and discharging equipment reaches station two on the specified road, and pushes the battery heating jig block out of the feeding and discharging equipment to station two according to the process of step four.

[0021] The above scheme of the present application has the following beneficial effects:

[0022] 1. The present application can highly realize factory workshop automation, and replace tedious station transfer work with mechanical devices.

[0023] 2. The present application can greatly save the space of a factory, and only a channel for AGV car driving is needed, thereby increasing the space utilization rate of the factory.

[0024] 3. The movement and stop of the device, the start and stop of the motor, the up and down movement of the car arm and the extension and contraction of the jig pushing and pulling device are all controlled by program driving, and the force control is appropriate, thereby avoiding damage to the battery and the oven.

[0025] Other beneficial effects of the present application will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0027] Figure 2 is a schematic diagram of the three-dimensional structure of the present application;

[0028] Figure 3 is a schematic diagram of the three-dimensional structure of the present application;

[0029] Figure 4 is a schematic diagram of the three-dimensional structure of the present application;

[0030] Figure 5 is a schematic diagram of the three-dimensional structure of the present application;

[0031] Figure 6 is a schematic diagram of the three-dimensional structure of the present application;

[0032] Figure 7 is a schematic diagram of the three-dimensional structure of the present application;

[0033] Wherein, 1-frame; 11-weight block; 12-gear; 13-toothed belt; 14-servo motor; 15-slideway; 2-trolley arm; 21-left arm; 211, 221-first step; 212, 222-positioning port one; 22-right arm; 23-upper arm one; 24-upper arm two; 25-trolley arm connecting plate; 26-lifting connecting plate; 3-hibernating traction AGV trolley; 4-six-inch directional wheel; 5-six-inch universal wheel; 6-battery heating jig block; 61-placing rack push-pull plate; 62-wheel; 7-jig push-pull device; 71-linear module; 711-jig push-pull arm; 7111-cylinder; 7112-first gap; 8-push rod assembly; 81-push rod connecting plate one; 82-push rod connecting plate two; 83-slideway; 84-linear guide rail; 85-electric push rod; 86-cam bearing follower; 87-push rod connecting plate three; 9-sliding rail assembly; 91-sliding rail; 92-pulley; 93-connecting rod; 94-scissor upper connecting plate; 941-second step; 942-positioning port two; 95-push plate; 951-first slope. DETAILED DESCRIPTION

[0034] To make the technical problems, technical solutions and advantages of the present application clearer, specific embodiments will be described in detail below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0035] Embodiment 1 of the present application provides a feeding and discharging method for lithium battery drying process, specifically comprising the following steps:

[0036] Embodiment 1 of the present application provides a feeding and discharging method for lithium battery drying process, specifically comprising the following steps:

[0037] Step one: the feeding and discharging equipment is driven by program to reach station one, and the height of the trolley arm is adjusted until the cam bearing follower on the push rod assembly can contact the first slope.

[0038] Step two: the electric push rod on the push rod assembly starts to move, the push rod extends, driving the cam bearing follower to push outward. During the pushing process, the cam bearing follower will contact and slide on the first slope, and as the cam bearing follower continues to extend, the scissor upper connecting plate of the sliding rail assembly will be raised by 10mm, at which time the first step on the inner side of the trolley arm and the second step on the sliding rail assembly are horizontal.

[0039] Step three: the tool push-pull device extends until the first gap between the two rows (four) of cylinders on the tool push-pull device matches the position of the placement shelf push-pull plate. At the same time, the cylinders are activated, the cylinder electric push rod extends, and the placement shelf push-pull plate is clamped, pulling the battery heating jig block from the work station one into the loading and unloading equipment; then, the push rod assembly is retracted, the cam bearing follower slides off the first slope, and the scissor upper connecting plate of the sliding rail assembly returns to its original position.

[0040] Step four: the loading and unloading equipment with the battery heating jig block reaches the drying box according to the designated road, makes the first and second steps level according to the method in step two, and then pushes the battery heating jig block from the equipment into the drying box. When it is fully pushed in, the cylinder stops, the cylinder rod retracts, and the tool push-pull device retreats, and the push rod assembly retracts.

[0041] Step five: after the battery heating jig block is dried in the drying box, the loading and unloading equipment adjusts the height of the trolley arm according to the height of the number of layers of the drying box, makes the first and second steps level according to the method in step two, and pulls the battery heating jig block from the drying box into the loading and unloading equipment according to the process in step three. Then, the loading and unloading equipment reaches the work station two on the designated road, and pushes the battery heating jig block from the loading and unloading equipment to the work station two according to the process in step four.

[0042] Example 2

[0043] Example 2 of the present application provides a loading and unloading equipment for a lithium battery drying process, which comprises a trolley frame 1, a counterweight block 11, two rows of four gears 12, two toothed belts 13 and a servo motor 14 mounted on the trolley frame 1; a trolley arm 2 connected to the trolley frame 1 through two sliding rails 15, which can slide up and down along the sliding rails 15; a latent traction AGV 3 which can travel and stop on designated roads under program control; two six-inch directional wheels 4; two six-inch universal wheels 5; a battery heating jig block 6 equipped with a special placement shelf push-pull plate 61 and wheels 62; a tool push-pull device 7 mainly composed of a linear module 71, which is installed with a tool push-pull arm 711, and two rows of four cylinders 7111 are arranged on the tool push-pull arm, a first gap 7112 is formed between the two rows of cylinders; a push rod assembly 8 installed on the outside of the trolley arm 2; a sliding rail assembly 9 installed on the work station or the drying box for placing the battery heating jig block 6.

[0044] In this embodiment, the battery heating fixture block 6 is placed on the sliding rail assembly 9 at station one, the latent traction AGV 3 receives a signal to drive the car frame 1 to station one, adjusts the height of the car arm 2 until the cam bearing follower 86 on the push rod assembly 8 can contact the first slope 951, at this time the electric push rod 85 on the push rod assembly 8 starts to move, the push rod extends, driving the cam bearing follower 86 to push out. During the pushing process, the cam bearing follower 86 will contact and slide on the first slope 951, and as the cam bearing follower 86 continues to extend, it will cause the upper connecting plate 94 of the scissors of the sliding rail assembly to rise by 10mm, at this time the first step 212,222 inside the car arm and the second step 941 on the sliding rail assembly are horizontal. After that, the fixture push-pull device 7 extends until the first gap 7112 of the 2 rows of 4 cylinders on the fixture push-pull device matches the position of the placement rack push-pull plate 61. At the same time, the cylinder 7111 starts, the cylinder electric push rod extends, clamping the placement rack push-pull plate 61, and pulling the battery heating fixture block 6 from station one into the loading and unloading equipment.

[0045] In this embodiment, the loading and unloading equipment with the battery heating fixture block 6 reaches the drying box according to the designated road, adjusts the height of the car arm 2 according to the height of the number of layers of the drying box, makes the first step 212,222 and the second step 941 horizontal according to the above method, and then pushes the battery heating fixture block 6 from the loading and unloading equipment into the drying box. When it is completely pushed in, the cylinder 7111 stops, the cylinder rod retracts, and the fixture push-pull device 7 retreats, and the push rod assembly 8 retracts.

[0046] In this embodiment, when the battery heating fixture block 6 is dried in the drying box, the loading and unloading equipment adjusts the height of the car arm 2 according to the height of the number of layers of the drying box, makes the first step 212,222 and the second step 941 horizontal according to the above method, and then pulls the battery heating fixture block 6 from the drying box into the loading and unloading equipment. Then, the loading and unloading equipment reaches station two on the designated road, adjusts the height of the car arm 2, and pushes the battery heating fixture block 6 from the loading and unloading equipment to station two.

[0047] The above describes the preferred embodiments of the present application. It should be noted that for ordinary skilled persons in the technical field, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered within the scope of protection of the present application.

Claims

1. A loading and unloading device for a lithium battery drying process, characterized in that, The utility model relates to an AGV battery heating device, including trolley frame (1), the slide rail assembly (9) of setting respectively in work station one and work station two and battery heating jig block, trolley frame installs on the latent traction type AGV trolley (3), trolley frame is connected with trolley arm (2) through elevating gear, and both sides of trolley arm (2) are slidably connected with trolley frame through slide rail (15) respectively, trolley arm (2) includes left arm (21) and right arm (22) of T shape, left arm (21) and right arm (22) are connected through arm connecting plate (25), and the inside of left arm (21) and right arm (22) forms first step, and the inside front end of left arm (21) and right arm (22) also forms positioning mouth one, and arm connecting plate (25) middle part is installed with jig push -and -pull device (7), and jig push -and -pull device (7) includes linear module (71), and linear module (71) is installed with jig push -and -pull arm (711), and jig push -and -pull arm (711) front end is installed with air cylinder (7111), and the outside of left arm (21) and right arm (22) is installed with push rod subassembly (8) respectively, push rod subassembly (8) includes push rod connecting plate (81), and push rod connecting plate (81) is connected with push rod connecting plate two (82) through electric push rod (85), and push rod connecting plate two (82) is slidably connected with linear guide rail (84) through sliding block (83), and push rod connecting plate two (82) is connected with push rod connecting plate three (87), and push rod connecting plate three (87) inside is connected with cam bearing follower (86), the slide rail assembly (9) includes two mutually parallelly arranged slide rails (91), and slide rail (91) is connected with scissor upper connecting plate (94) through scissor -type lifting structure, and the inside of scissor upper connecting plate (94) forms second step (941), and the outside of scissor upper connecting plate (94) front end forms positioning mouth two (942), and scissor upper connecting plate (94) top front end is connected with L -shaped push plate (95), and the front end bottom of push plate (95) forms first slope (951), the battery heating jig block (6) top is fixed with placing rack push -and -pull plate (61), and both sides are installed with a plurality of wheels (62), and battery heating jig block (6) is on trolley frame (1) or slide rail assembly (9).

2. The loading and unloading apparatus for lithium battery drying process according to claim 1, wherein, The work station one is a drying box.

3. The loading and unloading apparatus for lithium battery drying process according to claim 1, wherein, The elevating gear includes the toothed belt (13) at both sides of the trolley frame (1), one end of the toothed belt (13) is connected with the counterweight (11), the other end is connected with the trolley arm (2); the trolley arm (2) and the counterweight (11) are respectively at both sides of the trolley frame (1); the toothed belt (13) is engaged with the gear (12), the gear (12) is connected with the servo motor (14).

4. The loading and unloading apparatus for lithium battery drying process according to claim 1, wherein, The front end and the rear end of the top of the left arm (21) and the right arm (22) are connected through the upper arm two (24) and the upper arm one (23) respectively.

5. The loading and unloading apparatus for lithium battery drying process according to claim 1, wherein, The battery heating jig block (6) has eight wheels with a diameter of 50mm on the left and right sides; the placing rack push-and-pull plate (61) is fixed at the front end of the battery heating jig block (6).

6. The loading and unloading apparatus for lithium battery drying process according to claim 1, wherein, The scissors lifting structure comprises two middle connecting rods (93) hingedly connected with each other, one end of each of the two connecting rods (93) is connected with a pulley (92), the other end of one connecting rod (93) is hingedly connected with a sliding rail (91), and the other end is hingedly connected with a scissors upper connecting plate (94); the front end and the rear end of the sliding rail (91) and the scissors upper connecting plate (94) are connected with a scissors lifting structure respectively.

7. The loading and unloading equipment for lithium battery drying process according to claim 1, characterized in that: The trolley frame (1) is welded by 70mm*70mm stainless steel; two six-inch directional wheels (4) and two six-inch universal wheels (5) are installed below the trolley frame.

8. The loading and unloading apparatus for lithium battery drying process according to claim 1, wherein, Four air cylinders (7111) are installed on the jig push-pull arm (711), and the four air cylinders (7111) are arranged in two rows, and a first gap (7112) is formed between the two rows of air cylinders.

9. The loading and unloading apparatus for lithium battery drying process according to claim 1, wherein, The first step and the second step are each 18mm wide and 13mm high.

10. A feeding and discharging method for a lithium battery drying process, characterized in that, The up-down feeding equipment for lithium battery drying process in any one of claims 1-9 comprises the following steps: Step one: the up-down feeding equipment is driven to station one by program, and the height of the trolley arm is adjusted until the cam bearing follower on the push rod assembly can contact the first slope; Step two: the electric push rod on the push rod assembly starts to move, the push rod extends, and the cam bearing follower is pushed out; during the pushing process, the cam bearing follower will contact and slide on the first slope, and as the cam bearing follower continues to extend, the scissors upper connecting plate of the sliding rail assembly will be raised by 10mm, at which time the first step inside the trolley arm and the second step on the sliding rail assembly are horizontal; Step three: the jig push-pull device extends until the first gap between the air cylinders on the jig push-pull device matches the position of the placement rack push-pull plate; at the same time, the air cylinders are started, the air cylinder electric push rod extends, and the placement rack push-pull plate is clamped, so that the battery heating jig block is pulled into the up-down feeding equipment from station one; then, the push rod assembly is retracted, the cam bearing follower slides off the first slope, and the scissors upper connecting plate of the sliding rail assembly returns to the original position; Step four: the up-down feeding equipment with the battery heating jig block reaches the drying box according to the specified road, the first step and the second step are made horizontal according to the method of step two, and then the battery heating jig block is pushed into the drying box from the equipment; when it is completely pushed in, the air cylinder stops, the air cylinder rod retracts, the jig push-pull device retreats, and the push rod assembly retracts; Step five: after the battery heating jig block is dried in the drying box, the up-down feeding equipment adjusts the height of the trolley arm according to the height of the number of layers of the drying box, makes the first step and the second step horizontal according to the method of step two, and pulls the battery heating jig block into the up-down feeding equipment from the drying box according to the process of step three; then, the up-down feeding equipment reaches station two on the specified road, and pushes the battery heating jig block out of the up-down feeding equipment to station two according to the process of step four.

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