Battery cell drawer contact type preheating tunnel furnace

Abstract

The utility model discloses a drawer contact type preheating tunnel furnace for battery cells. A feeding conveying mechanism is used for grabbing the battery cells and placing the battery cells on the top of a feeding transfer platform; the feeding transfer platform is used for placing and transferring the battery cells grabbed by the feeding conveying mechanism; the feeding and discharging mechanism is used for grabbing the preheated battery cells to be placed on the top of the discharging transfer platform and used for grabbing the battery cells on the top of the feeding transfer platform to be placed in the drawer contact type preheating furnace. The discharging transfer platform is used for transferring the preheated battery cells; the discharging conveying mechanism is used for grabbing the battery cells on the top of the discharging transfer platform. The drawer contact type preheating tunnel furnace has the advantages that the overall length of equipment is shortened, the processing cost and the transportation cost are reduced, the occupied area is saved, more battery cell drawer contact type preheating tunnel furnaces can be conveniently arranged on a site, and a space is reserved for improving the subsequent productivity.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium electric core production equipment technical field, especially relates to a battery core drawer contact type preheating tunnel furnace. BACKGROUND

[0002] In the production process of lithium battery, the bare battery core, the pole piece, the pole roll and the battery core need to be preheated or dried. The preheating tunnel furnace equipment is mainly used for preheating the bare battery core (JR) after winding / stacking before heat pressing, so that the heat pressing shaping can quickly achieve the shaping effect and improve the single line capacity.

[0003] At present, the patent with the authorization announcement number "CN109442999B" discloses a kind of full-automatic preheating furnace, including furnace body frame and battery loading station, battery heating station and battery unloading station, the battery heating station is located in the heating cavity of furnace body frame, several layers of tray type heating plate are sequentially arranged in heating cavity, tray type heating plate is fixed in furnace body frame by heating plate guide assembly and can be horizontally moved, further including heating plate poking device, which pushes tray type heating plate to move forward and backward to convert between battery loading station, battery heating station and battery unloading station.

[0004] However, the full-automatic preheating furnace is in work, and the battery is moved to the front of the battery loading station by the loading and moving mechanism, the battery is grabbed by the loading manipulator and moved to the top of the battery loading station, the tray type heating plate is poked to the battery loading station below the loading manipulator by the heating plate poking device, and the battery is placed on the battery placing station of the tray type heating plate by the loading manipulator; after the tray type heating plate reaches the set baking time, the unloading manipulator is moved to the top of the tray type heating plate where the battery needs to be unloaded, the tray type heating plate is poked to the battery unloading station by the heating plate poking device, the battery is grabbed by the unloading manipulator and placed on the unloading and moving mechanism, and the tray type heating plate is poked to the battery heating station by the heating plate poking device to wait for the battery loading again.

[0005] The tray type heating plate is located at the battery heating station between the battery loading station and the battery unloading station, and the tray type heating plate is moved to the battery loading station to load the battery first when working, then moved to the battery heating station, heated in the battery heating station, and moved to the battery unloading station to remove the battery, so that the overall size is relatively long, and the land size of the equipment is relatively large; the loading manipulator and the unloading manipulator are respectively located on the two sides of the battery loading station and the battery unloading station, and the battery core needs to be grabbed by the loading manipulator to the tray type heating plate during loading, and the battery needs to be taken out from the tray type heating plate by the unloading manipulator during unloading, so that the overall length of the equipment is increased by the setting of the loading manipulator and the unloading manipulator, and the processing cost and transportation cost of the equipment are further increased. UTILITY MODEL CONTENTS

[0006] The utility model discloses a battery cell drawer contact type preheating tunnel furnace, with the advantages of shortening the overall length of equipment, reducing processing cost and transportation cost, saving floor space, facilitating more battery cell drawer contact type preheating tunnel furnaces to be arranged on the site and reserving space for subsequent capacity expansion.

[0007] The above technical purpose of the utility model is realized by the following technical scheme:

[0008] The battery cell drawer contact type preheating tunnel furnace comprises, from left to right, a feeding conveying mechanism, a feeding transfer platform, a feeding and discharging mechanism, a drawer contact type preheating furnace, a discharging transfer platform and a discharging conveying mechanism.

[0009] The feeding conveying mechanism is used to place the battery cells grabbed by the feeding conveying mechanism on the top of the feeding transfer platform.

[0010] The feeding transfer platform is used to place the battery cells grabbed by the feeding conveying mechanism and move the battery cells to the left lower end inside the drawer contact type preheating furnace.

[0011] The feeding and discharging mechanism is used to grab the battery cells preheated in the drawer contact type preheating furnace and place the battery cells on the top of the discharging transfer platform, and is also used to grab the battery cells on the top of the feeding transfer platform and place the battery cells in the drawer contact type preheating furnace.

[0012] The drawer contact type preheating furnace is used to heat the battery cells inside the drawer contact type preheating furnace.

[0013] The discharging transfer platform is used to move below the feeding and discharging mechanism, place the battery cells preheated in the drawer contact type preheating furnace and move the battery cells to the discharging conveying mechanism.

[0014] The discharging conveying mechanism is used to grab the battery cells on the top of the discharging transfer platform.

[0015] The preferred scheme is as follows:

[0016] Preferably, the drawer contact type preheating furnace comprises two groups of first supports with a "mouth" shaped transverse vertical section, a plurality of battery preheating receiving platform assemblies and two groups of first driving assemblies.

[0017] The two first supports are placed in front of and behind each other, the plurality of battery preheating receiving platform assemblies are arrayed and slidably connected to the right between the two first supports from top to bottom, the two groups of first driving assemblies are respectively located on the right side of the front side of the front first support and on the right side of the rear side of the rear first support, and the two groups of first driving assemblies are drivingly connected with the plurality of battery preheating receiving platform assemblies.

[0018] Each of the battery preheating receiving bench assemblies comprises two first horizontal rods, two first sliding rails, four first sliding blocks, a heating receiving bench, two first limiting assemblies, the two first horizontal rods are fixed in the "mouth" shaped interiors of the two first supports respectively, the two first sliding rails are fixed on the opposite sides of the two first horizontal rods respectively, the two first sliding rails are slidably connected with the two first sliding blocks respectively, the heating receiving bench is located between the two first sliding rails, the front side and the rear side of the heating receiving bench are fixedly connected with the corresponding first sliding blocks respectively, and the two first limiting assemblies are fixed on the right sides of the top portions of the two first horizontal rods respectively.

[0019] The first limiting assembly on the front side and the first limiting assembly on the rear side are symmetrically and mirror-imaged along the transverse center axis of the heating receiving bench, the first limiting assembly on the front side comprises a first concave block, a first double-shaft air cylinder, a first convex block and a first bolt type roller, the first concave block is fixed on the right side of the front side of the heating receiving bench, the "concave" opening of the first concave block faces forward, the first double-shaft air cylinder is fixed on the top portion of the corresponding first horizontal rod, the first convex block is located behind the first double-shaft air cylinder, the first convex block is fixedly connected with the telescopic rod of the first double-shaft air cylinder, the protrusion of the first convex block is located on the rear side, and the first bolt type roller is threadedly connected to the bottom of the protrusion of the first convex block and is inserted into the "concave" opening of the first concave block.

[0020] Preferably, the two groups of first driving assemblies are symmetrically and mirror-imaged along the transverse center axis of the heating receiving bench.

[0021] The first driving assembly on the front side comprises a first linear sliding table module, two groups of second linear sliding table modules, a second limiting assembly and a plurality of second concave blocks, the two groups of second linear sliding table modules are fixed on the upper end and the lower end of the front side of the first support on the front side in a transverse mode, the first linear sliding table module is slidably connected to the right side of the front side of the two groups of second linear sliding table modules in a vertical mode, the second limiting assembly is slidably connected to the left side of the first linear sliding table module, the plurality of second concave blocks are fixed on the right side of the front side of the plurality of heating receiving benches respectively, the "concave" opening of each second concave block faces forward, and the second limiting assembly is clamped with the "concave" opening of the second concave block.

[0022] The second limiting component located on the front side comprises a first connecting plate, a second connecting plate, two second sliding rails, two second sliding blocks, a second air cylinder, a third connecting plate, a fourth connecting plate, a rolling bearing and a first rodless bolt, the first connecting plate is horizontally and vertically slidably connected to the front side of the first linear sliding table module, the second connecting plate is fixed to the left side of the first connecting plate in a vertical manner, the two second sliding rails are fixed to the upper end and the lower end of the left side of the second connecting plate in a vertical manner, the two second sliding blocks are slidably connected to the left sides of the two second sliding rails respectively, the third connecting plate is fixed to the left sides of the two second sliding blocks in a vertical manner, the second air cylinder is fixed to the left side of the second connecting plate, the telescopic rod of the second air cylinder is fixedly connected to the third connecting plate, the fourth connecting plate is fixed to the left side of the third connecting plate in a vertical manner, the vertical section of the fourth connecting plate is in a concave shape, the concave opening of the fourth connecting plate faces backward, a first threaded hole is formed in the top rear side of the fourth connecting plate, the rolling bearing is horizontally arranged in the concave opening of the fourth connecting plate, the first threaded hole of the fourth connecting plate and the inner hole of the rolling bearing have the same center, the first rodless bolt is inserted into the inner hole of the rolling bearing and is threadedly connected to the first threaded hole, and the rolling bearing is located in the concave opening of the second concave block.

[0023] Preferably, the feeding conveying mechanism and the discharging conveying mechanism are placed in mirror symmetry along the drawer contact type preheating furnace.

[0024] The feeding conveying mechanism comprises a square first frame, two groups of third linear sliding table modules, two first fixed rods and two groups of first battery grabbing mechanisms, the first frame is located to the left of the drawer contact type preheating furnace, the two groups of third linear sliding table modules are fixed to the top left side and the right side of the first frame in a horizontal manner respectively, the two first fixed rods are placed in a vertical and left-right manner and are slidably connected to the top of the two groups of third linear sliding tables, and the two groups of first battery grabbing mechanisms are fixed to the front side and the rear side between the two first fixed rods respectively.

[0025] Preferably, the two groups of first battery grabbing mechanisms are placed in mirror symmetry along the horizontal center axis of the first frame.

[0026] The first battery grabbing mechanism located on the rear side comprises a first fixed plate, two second fixed plates, a third fixed plate, two fourth fixed plates, a third air cylinder, a fifth fixed plate, four sixth fixed plates, a seventh fixed plate, two eighth fixed plates, two ninth fixed plates, five first rotary air cylinders, five groups of first battery grabbing assemblies and a fourth air cylinder.

[0027] The third fixing plate is located horizontally in the longitudinal direction, directly below and behind the two first fixing rods. The first fixing plate and the two second fixing plates are all fixed behind the bottom of the two first fixing rods. The middle positions of the first fixing plate and the third fixing plate are opposite each other. The two second fixing plates are located in front of and behind the first fixing plate, respectively. The two third slide rails are placed vertically on the top left and right sides of the third fixing plate. The two fourth fixing plates are vertically fixed on the top left and right sides of the third fixing plate. The two fourth fixing plates are located between the two third slide rails. The horizontal and vertical cross-section of the fifth fixing plate is "U" shaped. The fifth fixing plate is fixed at the top middle position of the third fixing plate.

[0028] The third cylinder is fixedly located at the top center of the first fixed plate. The bottom of the telescopic rod of the third cylinder is fixedly connected to the top of the fifth fixed plate. A first guide rod is inserted into the top left and right sides of each second fixed plate. The bottom of each first guide rod is fixedly connected to the top of the third fixed plate. A tenth fixed plate is fixedly provided at the top of the two first guide rods on the front side and the top of the two first guide rods on the rear side.

[0029] The seventh fixing plate is fixedly located at the bottom front side of the third fixing plate. Each of the third slide rails has four third sliders slidably connected to its top. The horizontal and vertical cross sections of the four sixth fixing plates are all U-shaped. The third fixing plate is located inside the U-shaped opening of the four sixth fixing plates. The upper ends of the inner front sidewall and inner rear sidewall of the four sixth fixing plates are respectively fixedly connected to the four third sliders at the top of the two third slide rails.

[0030] The five first rotary cylinders are respectively fixed at the bottom of the four sixth and seventh fixed plates, and the five sets of first battery gripping components are respectively fixed at the bottom of the rotating rods of the five first rotary cylinders.

[0031] The third fixing plate has a first waist-shaped perforation placed longitudinally on both the front and rear sides of its top. The sixth fixing plate, located at the rearmost side, has a displacement block fixedly installed on its top. The displacement block is located in the first waist-shaped perforation on the rear side. The fourth cylinder is fixedly located longitudinally at the middle position of the top of the third fixing plate. The rear part of the telescopic rod of the fourth cylinder is fixedly connected to the displacement block.

[0032] Both eighth fixing plates and both ninth fixing plates are rectangular strips. The front side of the left side of both eighth fixing plates and both ninth fixing plates is provided with a second waist-shaped perforation in a longitudinal direction. The left side of the seventh fixing plate, the left side of the second sixth fixing plate from front to back, the right side of the first sixth fixing plate from front to back, and the right side of the third sixth fixing plate from front to back are all threaded with second bolt-type rollers.

[0033] The rear sides of the two eighth fixing plates are fixedly connected with the left side of the first sixth fixing plate from front to back and the left side of the third sixth fixing plate from front to back respectively; the second waist-shaped perforated sleeve of the eighth fixing plate at the first sixth fixing plate from front to back is arranged on the second bolt-shaped roller of the seventh fixing plate, and the second waist-shaped perforated sleeve of the eighth fixing plate at the third sixth fixing plate from front to back is arranged on the second bolt-shaped roller of the second sixth fixing plate from front to back;

[0034] The rear sides of the two ninth fixing plates are fixedly connected with the right side of the second sixth fixing plate from front to back and the right side of the fourth sixth fixing plate from front to back respectively; the second waist-shaped perforated sleeve of the ninth fixing plate at the second sixth fixing plate from front to back is arranged on the second bolt-shaped roller of the first sixth fixing plate from front to back, and the second waist-shaped perforated sleeve of the ninth fixing plate at the fourth sixth fixing plate from front to back is arranged on the second bolt-shaped roller of the third sixth fixing plate from front to back.

[0035] Preferably, the feeding and transferring mechanism comprises two groups of second supports in the shape of "mouth" in the transverse vertical section, two groups of fourth linear slide module groups, two groups of third supports, a first mounting plate and twenty second battery grabbing assemblies.

[0036] The two groups of second supports are placed in front and back, and the two groups of fourth linear slide module groups are vertically placed on the corresponding sides of the two groups of second supports. The left side and the right side of each group of fourth linear slide module groups are fixedly provided with fourth slide rails in the vertical state. Two fourth sliding blocks are slidably connected to each fourth slide rail. Each second mounting plate is slidably connected to the fourth linear slide module group, and each second mounting plate is fixedly connected with the corresponding four fourth sliding blocks.

[0037] The two groups of third supports are in the shape of rectangle. The two groups of third supports are fixedly arranged on the rear side of the second mounting plate on the front side and the front side of the second mounting plate on the rear side respectively. The first mounting plate is fixedly arranged on the right side between the two groups of third supports.

[0038] The twenty second battery grabbing assemblies are arranged in the form of ten rows and two columns on the bottom of the first mounting plate.

[0039] Preferably, the feeding and transferring mechanism comprises two groups of fifth linear slide module groups, two third mounting plates, four first supporting rods and a first placing platform.

[0040] The two groups of fifth linear sliding table modules are placed horizontally in front and back, the free left half of the two fifth linear sliding table modules is located at the lower left inside of the drawer contact type preheating furnace, the two third mounting plates are respectively slidably connected to the top of the two fifth linear sliding table modules, the four first supporting rods are respectively fixed on the top of the two third mounting plates, and the first placement platform is fixed on the top of the four first supporting rods.

[0041] Preferably, the blanking transfer platform comprises two groups of sixth linear sliding table modules and a second placement platform.

[0042] The two groups of sixth linear sliding table modules are placed horizontally in front and back, and the two groups of sixth linear sliding table modules are located at the lower left of the drawer contact type preheating furnace from left to right by two-thirds, and the right side of the two sixth linear sliding table modules is located at the left one-fourth of the drawer contact type preheating furnace from left to right.

[0043] The second placement platform is slidably connected to the top of the two groups of sixth linear sliding table modules.

[0044] Preferably, the structure of each first battery grabbing assembly and each second battery grabbing assembly is consistent.

[0045] The first battery grabbing assembly comprises a fourth mounting plate, a fifth sliding rail, two fifth sliding blocks, two sixth sliding blocks, a limiting plate, two fifth mounting plates, two sixth mounting plates, two second double-shaft air cylinders, two seventh mounting plates, and four clamping jaws.

[0046] The cross section of the fourth mounting plate is "ten" shape, the fifth sliding rail is connected to the bottom of the fourth mounting plate, the two fifth sliding blocks are connected to the bottom left side and the bottom right side of the fifth sliding rail, the longitudinal vertical section of the two sixth sliding blocks are both "H" shape, the upper end bottom wall of the two sixth sliding blocks are fixedly connected with the bottom of the two fifth sliding blocks respectively, the transverse vertical section of the limiting plate is "U" shape, the fourth mounting plate is located in the "U" shaped opening of the limiting plate, the lower end of the limiting plate is located in the lower end of the two sixth sliding blocks, and the inner bottom wall of the limiting plate abuts against the lower end top wall of the two sixth sliding blocks, the two fifth mounting plates are vertically fixed on the bottom of the two sixth sliding blocks respectively, the two sixth mounting plates are fixed on the right side lower end of the left fifth mounting plate and the left side lower end of the right fifth mounting plate respectively, the two second double-shaft air cylinders are fixed on the right side of the left sixth mounting plate and the left side of the right sixth mounting plate respectively, the longitudinal vertical section of the two seventh mounting plates are both "convex" shape, the two seventh mounting plates are fixed on the lower end of the side, away from the corresponding second double-shaft air cylinder, of the two sixth mounting plates respectively, the transverse vertical section of each clamping jaw is "L" shape, two clamping jaws are fixedly installed on the side, away from the corresponding second double-shaft air cylinder, of each seventh mounting plate, and the "L" shaped opening of each clamping jaw faces the corresponding second double-shaft air cylinder;

[0047] The bottom of the telescopic rod of each second double-shaft air cylinder is fixedly provided with an eighth mounting plate, and the bottom front side and the bottom rear side of each eighth mounting plate are fixedly provided with rubber pads;

[0048] The middle positions of the bottom front side and the bottom rear side of the fourth mounting plate are fixedly provided with fifth air cylinders, the front side of the left sixth sliding block and the rear side of the right sixth sliding block are fixedly provided with abutting blocks, the telescopic rod of the front fifth air cylinder is fixedly connected with the abutting block of the left sixth sliding block, and the telescopic rod of the rear fifth air cylinder is fixedly connected with the abutting block of the right sixth sliding block.

[0049] Therefore, the utility model has the following beneficial effects:

[0050] 1. Through the arrangement of the feeding conveying mechanism, the battery cell sent by the previous process can be grabbed and placed on the top of the feeding transfer platform.

[0051] 2. Through the arrangement of the feeding transfer platform, the battery cell grabbed by the feeding conveying mechanism can be placed, and the battery cell can be moved to the left lower end inside the drawer contact type preheating furnace, so that the feeding and discharging mechanism can be grabbed conveniently.

[0052] 3. Through the setting of the feeding and discharging mechanism, the effect of placing the battery cells to be preheated on the heating receiving platform and placing the preheated battery cells on the next process feeding end can be achieved.

[0053] 4. Through the setting of the discharging transfer platform, the effect of moving the preheated battery cells to the discharging conveying mechanism can be achieved.

[0054] 5. Through the setting of the discharging conveying mechanism, the effect of placing the battery cells on the next process feeding end can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 is a top view of the overall structure of the embodiment;

[0056] Figure 2 is a front side view of the feeding transfer platform, the drawer contact preheating furnace, and the discharging transfer platform of the embodiment;

[0057] Figure 3 is a front side view of the overall structure of the feeding conveying mechanism of the embodiment;

[0058] Figure 4 is Figure 3 is an enlarged view of D;

[0059] Figure 5 is a front side view of the overall structure of the first battery grabbing mechanism of the embodiment;

[0060] Figure 6 is a rear side view of the overall structure of the first battery grabbing mechanism of the embodiment;

[0061] Figure 7 is a top view of the overall structure of the first battery grabbing mechanism of the embodiment;

[0062] Figure 8 is a left side view of the overall structure of the first battery grabbing mechanism of the embodiment;

[0063] Figure 9 is a front side view of the overall structure of the first battery grabbing mechanism of the embodiment;

[0064] Figure 10 is a top view of the overall structure of the first battery grabbing mechanism of the embodiment;

[0065] Figure 11is a front view of the overall structural modeling schematic diagram of the first battery grabbing assembly of the embodiment;

[0066] Figure 12 is the overall structural modeling schematic diagram of the feeding transfer platform and the discharging transfer platform of the embodiment;

[0067] Figure 13 is the overall structural modeling schematic diagram of the feeding and discharging mechanism of the embodiment;

[0068] Figure 14 is the overall structural modeling schematic diagram of the drawer contact type preheating furnace of the embodiment;

[0069] Figure 15 is a front view of the overall structural modeling schematic diagram of the drawer contact type preheating furnace of the embodiment;

[0070] Figure 16 is the overall structural modeling schematic diagram of the heating receiving table and the first limiting assembly of the drawer contact type preheating furnace of the embodiment;

[0071] Figure 17 is the overall structural modeling schematic diagram of the first limiting assembly of the drawer contact type preheating furnace of the embodiment;

[0072] Figure 18 is Figure 14 is an enlarged view of A in the figure;

[0073] Figure 19 is Figure 14 is an enlarged view of B in the figure;

[0074] Figure 20 is the overall structural modeling schematic diagram of the first driving assembly and the second limiting assembly of the drawer contact type preheating furnace of the embodiment;

[0075] Figure 21 is Figure 20 is an enlarged view of C in the figure.

[0076] In the figure, 1 is a feeding conveying mechanism; 2 is a feeding transfer platform; 3 is a feeding and discharging mechanism; 4 is a drawer contact type preheating furnace; 5 is a discharging transfer platform; 6 is a discharging conveying mechanism;

[0077] 111, first frame; 112, third linear slide module; 113, first fixed rod; 114, first battery grabbing mechanism; 115, first fixed plate; 116, second fixed plate; 117, third fixed plate; 118, fourth fixed plate; 119, third air cylinder; 120, fifth fixed plate; 121, sixth fixed plate; 122, seventh fixed plate; 123, eighth fixed plate; 124, ninth fixed plate; 125, first rotary air cylinder; 126, first battery grabbing assembly; 127, third slide rail; 128, fourth air cylinder; 129, first guide rod; 130, tenth fixed plate; 131, third slide block; 132, displacement block; 133, second bolt type roller; 134, fourth mounting plate; 135, fifth slide rail; 136, fifth slide block; 137, sixth slide block; 138, limiting plate; 139, fifth mounting plate; 140, sixth mounting plate; 141, second double-shaft air cylinder; 142, seventh mounting plate; 143, clamping jaw; 144, eighth mounting plate; 145, rubber pad; 146, fifth air cylinder; 147, abutting block;

[0078] 211, fifth linear slide module; 212, third mounting plate; 213, first support rod; 214, first placing platform;

[0079] 311, second support; 312, fourth linear slide module; 313, third support; 314, first mounting plate; 315, second battery grabbing assembly; 316, fourth slide rail; 317, fourth slide block; 318, second mounting plate;

[0080] 411, first support; 412, battery preheating receiving platform assembly; 413, first driving assembly; 414, first cross rod; 415, first slide rail; 416, first slide block; 417, heating receiving platform; 418, first limiting assembly; 419, first concave block; 420, first double-shaft air cylinder; 421, first convex block; 422, first bolt type roller; 423, first linear slide module; 424, second linear slide module; 425, second limiting assembly; 426, second concave block; 427, first connecting plate; 428, second connecting plate; 429, second slide rail; 430, second slide block; 431, second air cylinder; 432, third connecting plate; 433, fourth connecting plate; 434, rolling bearing; 435, first rodless bolt;

[0081] 511, sixth linear slide module; 512, second placing platform. DETAILED DESCRIPTION

[0082] The utility model will be described further in detail in connection with the drawings.

[0083] Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings.

[0084] Battery cell drawer-type preheating tunnel furnace, such as Figures 1-21 As shown, the system includes, from left to right, a feeding conveyor mechanism 1, a feeding transfer platform 2, a loading / unloading mechanism 3, a drawer-type contact preheating furnace 4, a unloading transfer platform 5, and an unloading conveyor mechanism 6. The feeding conveyor mechanism 1 is used to grab and place battery cells on top of the feeding transfer platform 2. The feeding transfer platform 2 is used to place the battery cells grabbed by the feeding conveyor mechanism 1 and move the battery cells to the lower left side of the drawer-type contact preheating furnace 4. The loading / unloading mechanism 3 is used to grab the preheated battery cells in the drawer-type contact preheating furnace 4 and place them on top of the unloading transfer platform 5. It is also used to grab the battery cells on top of the feeding transfer platform 2 and place them in the drawer-type contact preheating furnace 4. The unloading transfer platform 5 is used to move below the loading / unloading mechanism 3, place the preheated battery cells in the drawer-type contact preheating furnace 4, and move the battery cells to the unloading conveyor mechanism 6. The unloading conveyor mechanism 6 is used to grab the battery cells on top of the unloading transfer platform 5.

[0085] The drawer-type preheating furnace 4 includes two sets of first supports 411 with a cross-section of "U" and a number of battery preheating receiving platform assemblies 412 and two sets of first drive assemblies 413.

[0086] Two first supports 411 are placed one in front of the other. Several battery preheating receiving platform assemblies 412 are arranged in an array from top to bottom and slidably connected to the right side between the two first supports 411. Two sets of first drive assemblies 413 are located on the right side of the front side of the first support 411 and the right side of the rear side of the first support 411, respectively. The two sets of first drive assemblies 413 are connected to the several battery preheating receiving platform assemblies 412 through a transmission. The two sets of first drive assemblies 413 drive the several battery preheating receiving platform assemblies 412 to slide left and right between the two sets of first supports 411.

[0087] Each battery preheating receiving assembly 412 comprises two first horizontal rods 414, two first sliding rails 415, four first sliding blocks 416, a heating receiving table 417, and two first limiting assemblies 418. The two first horizontal rods 414 are fixed in the "mouth" shaped interiors of the two first supports 411 respectively. The two first sliding rails 415 are fixed horizontally on the opposite sides of the two first horizontal rods 414 respectively. The two first sliding rails 415 are slidably connected with the two first sliding blocks 416 respectively. The heating receiving table 417 is located between the two first sliding rails 415. The front side and the rear side of the heating receiving table 417 are fixedly connected with the corresponding first sliding blocks 416 respectively. The two first limiting assemblies 418 are fixed on the right sides of the top of the two first horizontal rods 414 respectively. Through the cooperation of the first sliding blocks 416 and the first sliding rails 415, the heating receiving table 417 is driven to move left and right between the two first supports 411. At the same time, through the first limiting assemblies 418, the heating receiving table 417 is limited, so that when one heating receiving table 417 is loading battery cells, the remaining heating receiving tables 417 are located on the right side of the two first supports 411.

[0088] The first limiting assembly 418 located on the front side and the first limiting assembly 418 located on the rear side are symmetrically and mirror-imaged along the transverse center axis of the heating receiving table 417. Herein, the first limiting assembly 418 located on the front side is taken as a specific description.

[0089] The first limiting assembly 418 located at the front side comprises a first concave block 419, a first double-shaft air cylinder 420, a first convex block 421 and a first bolt-type roller 422. The first concave block 419 is fixed at the right side of the front side of the heating receiving table 417. The cross section of the first concave block 419 is in a concave shape, and the concave opening of the first concave block 419 faces forward. The first double-shaft air cylinder 420 is fixed at the top right side of the corresponding first horizontal rod 414. The first convex block 421 is located behind the first double-shaft air cylinder 420. The first convex block 421 is fixedly connected with the telescopic rod of the first double-shaft air cylinder 420. The convex part of the first convex block 421 is located at the back side. The longitudinal vertical section of the first convex block 421 is in a convex shape. The first bolt-type roller 422 is threadedly connected to the bottom of the convex part of the first convex block 421. The first bolt-type roller 422 is inserted into the concave opening of the first concave block 419. When the heating receiving table 417 is limited, the telescopic rod of the first double-shaft air cylinder 420 is elongated at this time. The first double-shaft air cylinder 420 pushes the first bolt-type roller 422 to be inserted into the concave opening of the first concave block 419. When the battery cell on the heating receiving table 417 needs to be operated, the two groups of first driving assemblies 413 are first fixedly connected with the heating receiving table 417, and then the telescopic rods of the first double-shaft air cylinders 420 of the two groups of first limiting assemblies 418 are all retracted backward. The first convex block 421 drives the first bolt-type roller 422 to move away from the concave opening of the first concave block 419. At this time, the limiting of the heating receiving table 417 is released, and the two groups of first driving assemblies 413 can drive the heating receiving table 417 to move leftward.

[0090] The two groups of first driving assemblies 413 are symmetrically and mirror-imaged placed along the transverse center axis of the heating receiving table 417. The first driving assembly 413 located at the front side is taken as a specific description.

[0091] The first driving assembly 413 located at the front side comprises a first linear slide module 423, two groups of second linear slide modules 424, a second limiting assembly 425 and a plurality of second concave blocks 426. The two groups of second linear slide modules 424 are fixed horizontally at the upper end and the lower end of the front side of the first support 411. The first linear slide module 423 is connected to the right side of the front side of the two groups of second linear slide modules 424 in a vertical sliding manner. The second limiting assembly 425 is connected to the left side of the first linear slide module 423 in a sliding manner. The plurality of second concave blocks 426 are fixed respectively at the right side of the front side of the plurality of heating receiving tables 417. The concave opening of each second concave block 426 faces forward. The second limiting assembly 425 is clamped at the concave opening of the second concave block 426. When the heating receiving table 417 needs to be pulled, the two groups of second linear slide modules 424 drive the first linear slide module 423 to move rightward. The first linear slide module 423 drives the second limiting assembly 425 to displace upward and downward, so that the second limiting assembly 425 is located at the second concave block 426. The second limiting assembly 425 is clamped at the concave opening of the second concave block 426. Thus, the fixing of the heating receiving table 417 is completed. Subsequently, the two groups of second linear slide modules 424 drive the heating receiving table 417 to move leftward.

[0092] The second limiting assembly 425 located at the front side includes a first connecting plate 427, a second connecting plate 428, two second sliding rails 429, two second sliding blocks 430, a second air cylinder 431, a third connecting plate 432, a fourth connecting plate 433, a rolling bearing 434 and a first rodless bolt 435. The first connecting plate 427 is transversely and vertically slidably connected to the front side of the first linear slide module 423. The second connecting plate 428 is longitudinally and vertically fixed to the left side of the first connecting plate 427. The two second sliding rails 429 are longitudinally fixed to the upper end and the lower end of the left side of the second connecting plate 428. The two second sliding blocks 430 are slidably connected to the left sides of the two second sliding rails 429 respectively. The third connecting plate 432 is longitudinally and vertically fixed to the left sides of the two second sliding blocks 430. The second air cylinder 431 is fixed to the left side of the second connecting plate 428. The second air cylinder 431 is fixedly connected with the third connecting plate 432 through the telescopic rod. The fourth connecting plate 433 is longitudinally and vertically fixed to the left side of the third connecting plate 432. The longitudinal vertical section of the fourth connecting plate 433 is concave. The concave opening of the fourth connecting plate 433 faces backward. A first threaded hole is formed in the top rear side of the fourth connecting plate 433. The rolling bearing 434 is horizontally located in the concave opening of the fourth connecting plate 433. The first threaded hole of the fourth connecting plate 433 and the inner hole of the rolling bearing 434 have the same center. The first rodless bolt 435 is inserted into the inner hole of the rolling bearing 434 and is threadedly connected with the first threaded hole. The cross section of the second concave block 426 is concave. The rolling bearing 434 is located in the concave opening of the second concave block 426. When the first linear slide module 423 drives the second limiting assembly 425 to move to the corresponding second concave block 426, the telescopic rod of the second air cylinder 431 is elongated to push the third connecting plate 432 to move to the second concave block 426. The rolling bearing 434 of the third connecting plate 432 is inserted into the concave opening of the second concave block 426. At this time, the cooperation between the second limiting assembly 425 and the second concave block 426 is completed.

[0093] The upper feeding conveying mechanism 1 and the lower discharging conveying mechanism 6 are mirror-symmetrically placed along the drawer contact type preheating furnace 4.

[0094] The feeding and conveying mechanism 1 includes a square first frame 111, two sets of third linear slide modules 112, two first fixed rods 113, and two sets of first battery gripping mechanisms 114. The first frame 111 is located to the left of the drawer-type contact preheating furnace 4. The two sets of third linear slide modules 112 are respectively horizontally fixed on the top left and right sides of the first frame 111. The two first fixed rods 113 are placed vertically left and right and slidably connected to the top of the two sets of third linear slides. The two sets of first battery gripping mechanisms 114 are respectively fixed on the front and rear sides between the two first fixed rods 113. The two sets of third linear slide modules 112 drive the two sets of first battery gripping mechanisms 114 to move left and right through the two first fixed rods 113, gripping the battery cells that have been processed in the previous process on the left and placing them on the loading and unloading transfer platform 5 on the right.

[0095] Two sets of first battery gripping mechanisms 114 are stacked in a mirror image along the transverse central axis of the first frame 111;

[0096] The first battery gripping mechanism 114 located at the rear is described in detail.

[0097] The first battery gripping mechanism 114 located at the rear includes a first fixing plate 115, two second fixing plates 116, a third fixing plate 117, two fourth fixing plates 118, a third cylinder 119, a fifth fixing plate 120, four sixth fixing plates 121, a seventh fixing plate 122, two eighth fixing plates 123, two ninth fixing plates 124, five first rotary cylinders 125, five sets of first battery gripping components 126, two third slide rails 127, and a fourth cylinder 128.

[0098] The third fixing plate 117 is located horizontally in the longitudinal direction, directly below the rear side of the two first fixing rods 113. The first fixing plate 115 and the two second fixing plates 116 are fixedly located at the bottom rear side of the two first fixing rods 113. The middle position of the first fixing plate 115 corresponds to that of the third fixing plate 117. The two second fixing plates 116 are located in front of and behind the first fixing plate 115, respectively. The two third slide rails 127 are placed vertically on the top left and right sides of the third fixing plate 117. The two fourth fixing plates 118 are fixed vertically in the longitudinal direction on the top left and right sides of the third fixing plate 117. The two fourth fixing plates 118 are located between the two third slide rails 127. The horizontal and vertical cross-section of the fifth fixing plate 120 is "U" shaped. The fifth fixing plate 120 is fixedly located at the top middle position of the third fixing plate 117.

[0099] The third cylinder 119 is fixed in the middle of the top of the first fixed plate 115, the bottom of the telescopic rod of the third cylinder 119 is fixedly connected with the top of the fifth fixed plate 120, the top of each second fixed plate 116 is inserted with a first guide rod 129 on the left side and the right side, the bottom of each first guide rod 129 is fixedly connected with the top of the third fixed plate 117, the top of the two first guide rods 129 on the front side and the top of the two first guide rods 129 on the rear side are fixedly provided with the tenth fixed plate 130;

[0100] The seventh fixed plate 122 is fixedly arranged on the bottom of the third fixed plate 117 on the front side, the top of each third slide rail 127 is arrayed and slidably connected with four third sliding blocks 131, the transverse vertical sections of the four sixth fixed plates 121 are in the shape of "U", the third fixed plate 117 is located in the "U" shaped opening of the four sixth fixed plates 121, the upper ends of the inner front side wall and the inner rear side wall of the four sixth fixed plates 121 are fixedly connected with the four third sliding blocks 131 on the top of the two third slide rails 127;

[0101] The five first rotary cylinders 125 are fixedly arranged on the bottom of the four sixth fixed plates 121 and the seventh fixed plate 122 respectively, and the five first battery grabbing assemblies 126 are fixedly arranged on the bottom of the rotary rods of the five first rotary cylinders 125 respectively;

[0102] The top front side and the top rear side of the third fixed plate 117 are both provided with a first waist-shaped hole arranged in the longitudinal direction, the top of the sixth fixed plate 121 on the rear side is fixedly provided with a displacement block 132, the displacement block 132 is located in the first waist-shaped hole on the rear side, and the fourth cylinder 128 is fixedly arranged in the middle of the top of the third fixed plate 117 in the longitudinal direction, and the rear side of the telescopic rod of the fourth cylinder 128 is fixedly connected with the displacement block 132;

[0103] The two eighth fixed plates 123 and the two ninth fixed plates 124 are both in the shape of rectangular strips, the left side of each of the two eighth fixed plates 123 and the two ninth fixed plates 124 is provided with a second waist-shaped hole arranged in the longitudinal direction on the front side, the left side of the seventh fixed plate 122, the left side of the second sixth fixed plate 121 from front to back, the right side of the first sixth fixed plate 121 from front to back, and the right side of the third sixth fixed plate 121 from front to back are all threadedly connected with a second bolt type roller 133;

[0104] The rear sides of the two eighth fixed plates 123 are fixedly connected with the left side of the first sixth fixed plate 121 from front to back and the left side of the third sixth fixed plate 121 from front to back respectively; the second waist-shaped perforated sleeve of the eighth fixed plate 123 at the first sixth fixed plate 121 from front to back is arranged on the second bolt-shaped roller 133 of the seventh fixed plate 122, and the second waist-shaped perforated sleeve of the eighth fixed plate 123 at the third sixth fixed plate 121 from front to back is arranged on the second bolt-shaped roller 133 of the second sixth fixed plate 121 from front to back;

[0105] The rear sides of the two ninth fixed plates 124 are fixedly connected with the right side of the second sixth fixed plate 121 from front to back and the right side of the fourth sixth fixed plate 121 from front to back respectively; the second waist-shaped perforated sleeve of the ninth fixed plate 124 at the second sixth fixed plate 121 from front to back is arranged on the second bolt-shaped roller 133 of the first sixth fixed plate 121 from front to back, and the second waist-shaped perforated sleeve of the ninth fixed plate 124 at the fourth sixth fixed plate 121 from front to back is arranged on the second bolt-shaped roller 133 of the third sixth fixed plate 121 from front to back.

[0106] When working, the five groups of first battery grabbing assemblies 126 are lowered by the third cylinder 119, the five groups of first battery grabbing assemblies 126 are adjusted in angle by the five first rotating cylinders 125, the last side first battery grabbing assembly 126 is moved forward by the fourth cylinder 128, and the middle three groups of first battery grabbing assemblies 126 are moved forward by the two eighth fixed plates 123 and the two ninth fixed plates 124, so as to ensure that the five groups of first battery grabbing assemblies 126 can be adjusted to the maximum distance and the minimum distance, so as to adapt to the large interval between the battery cells placed in the previous process and the small interval between the second battery grabbing assemblies 315 of the feeding and discharging mechanism 3.

[0107] The feeding and discharging mechanism 3 comprises two groups of second supports 311 in the shape of “mouth” in transverse vertical section, two groups of fourth linear slide table modules 312, two groups of third supports 313, a first mounting plate 314, and twenty groups of second battery grabbing assemblies 315.

[0108] The two groups of second supports 311 are placed front and back, and the two groups of fourth linear slide table modules 312 are vertically placed on the corresponding sides of the two groups of second supports 311. The left side and the right side of each group of fourth linear slide table modules 312 are fixedly provided with a fourth slide rail 316 in a vertical shape, two fourth sliding blocks 317 are slidably connected to each fourth slide rail 316, and each group of fourth linear slide table modules 312 is slidably connected with a second mounting plate 318. Each second mounting plate 318 is fixedly connected with the corresponding four fourth sliding blocks 317.

[0109] The two groups of third supports 313 are rectangular in shape, and are fixed respectively at the rear side of the front second mounting plate 318 and the front side of the rear second mounting plate 318, and the first mounting plate 314 is fixed at the right side between the two groups of third supports 313;

[0110] The twenty groups of second battery grabbing assemblies 315 are fixed in a ten-row and two-column array at the bottom of the first mounting plate 314.

[0111] The feeding conveying mechanism 1 works twice in succession, and there are twenty battery cells placed on the top of the feeding transfer platform 2, at this time, the feeding transfer platform 2 moves to the directly below of the twenty groups of second battery grabbing assemblies 315 of the feeding and discharging mechanism 3, and the twenty groups of second battery grabbing assemblies 315 of the feeding and discharging mechanism 3 grab the twenty battery cells respectively, at the same time, the feeding transfer platform 2 moves to the left, and the feeding and discharging mechanism 3 places the twenty battery cells on the top of the heating receiving platform 417.

[0112] The feeding transfer platform 2 includes two groups of fifth linear slide table modules 211, two third mounting plates 212, four first support rods 213, and a first placement platform 214.

[0113] The two groups of fifth linear slide table modules 211 are placed horizontally front and back, and the free leftward half of the two fifth linear slide table modules 211 is located at the lower left inside of the drawer contact type preheating furnace 4, the two third mounting plates 212 are respectively slidably connected to the top of the two fifth linear slide table modules 211, the four first support rods 213 are respectively fixed in pairs at the top of the two third mounting plates 212, the first placement platform 214 is fixed at the top of the four first support rods 213, and the first placement platform 214 is used to carry the battery cells grabbed by the feeding conveying mechanism 1, the two groups of fifth linear slide table modules 211 drive the first placement platform 214 to move to the right, so as to convey the battery cells grabbed by the feeding conveying mechanism 1 to the directly below of the twenty groups of second battery grabbing assemblies 315 of the feeding and discharging mechanism 3, thereby facilitating the work of the feeding and discharging mechanism 3.

[0114] The feeding transfer platform 2 includes two groups of fifth linear slide table modules 211, two third mounting plates 212, four first support rods 213, and a first placement platform 214.

[0115] The two groups of sixth linear slide table modules 511 are placed horizontally front and back, and the two groups of sixth linear slide table modules 511 are located two-thirds from left to right below the drawer contact type preheating furnace 4, and the right side of the two sixth linear slide table modules 511 is located at one-fourth from left to right of the drawer contact type preheating furnace 4.

[0116] The second placement platform 512 is slidably connected to the top of the two groups of sixth linear slide table modules 511.

[0117] The second placement platform 512 is used to carry the preheated battery cells gripped by the twenty sets of second battery gripping components 315 of the loading and unloading mechanism 3. Two sets of fifth and sixth linear slide modules drive the second placement platform 512 to move to the left from under the battery preheating receiving platform components 412. After carrying the battery cells, two sets of sixth linear slide modules 511 drive the second placement platform 512 to move to the right from under the battery preheating receiving platform components 412, and transport the preheated battery cells to the unloading conveying mechanism 6. The unloading conveying mechanism 6 grips the preheated battery cells on the top of the second placement platform 512.

[0118] The structure of each first battery gripping component 126 is identical to that of each second battery gripping component 315;

[0119] The first battery gripping component 126 is described in detail.

[0120] The first battery gripping assembly 126 includes a fourth mounting plate 134, a fifth slide rail 135, two fifth sliders 136, two sixth sliders 137, a limiting plate 138, two fifth mounting plates 139, two sixth mounting plates 140, two second dual-axis cylinders 141, two seventh mounting plates 142, and four grippers 143.

[0121] The fourth mounting plate 134 has a cross-section in the shape of a cross. The fifth slide rail 135 is slidably connected to the bottom of the fourth mounting plate 134. Two fifth sliders 136 are slidably connected to the bottom left and bottom right sides of the fifth slide rail 135. The longitudinal vertical cross-sections of the two sixth sliders 137 are both in the shape of an "H". The upper bottom walls of the two sixth sliders 137 are fixedly connected to the bottoms of the two fifth sliders 136 respectively. The transverse vertical cross-section of the limiting plate 138 is in the shape of a "U". The fourth mounting plate 134 is located inside the "U"-shaped opening of the limiting plate 138. The lower end of the limiting plate 138 is located inside the lower ends of the two sixth sliders 137, and the inner bottom wall of the limiting plate 138 abuts against the lower top walls of the two sixth sliders 137. The two fifth mounting plates 139 are fixedly located vertically at the bottoms of the two sixth sliders 137 respectively. Two sixth mounting plates 140 are respectively fixed to the lower right side of the fifth mounting plate 139 on the left and the lower left side of the fifth mounting plate 139 on the right. Two second dual-shaft cylinders 141 are respectively fixed to the right side of the sixth mounting plate 140 on the left and the left side of the sixth mounting plate 140 on the right. The longitudinal vertical sections of the two seventh mounting plates 142 are both convex. The two seventh mounting plates 142 are respectively fixed to the lower end of the side of the two sixth mounting plates 140 away from their corresponding second dual-shaft cylinders 141. The transverse vertical section of each gripper 143 is L-shaped. Two grippers 143 are fixedly installed on the side of each seventh mounting plate 142 away from its corresponding second dual-shaft cylinder 141. The L-shaped opening of each gripper 143 faces its corresponding second dual-shaft cylinder 141.

[0122] The bottom of the telescopic rod of each second double-shaft air cylinder 141 is fixedly provided with an eighth mounting plate 144, and the front side and the rear side of the bottom of each eighth mounting plate 144 are fixedly provided with rubber pads 145;

[0123] The middle positions of the front side and the rear side of the bottom of the fourth mounting plate 134 are fixedly provided with fifth air cylinders 146, and the front side of the sixth sliding block 137 on the left side and the rear side of the sixth sliding block 137 on the right side are fixedly provided with abutting blocks 147, the telescopic rod of the fifth air cylinder 146 on the front side is fixedly connected with the abutting block 147 of the sixth sliding block 137 on the left side, and the telescopic rod of the fifth air cylinder 146 on the rear side is fixedly connected with the abutting block 147 of the sixth sliding block 137 on the right side.

[0124] In work, the two fifth air cylinders 146 respectively push the abutting blocks 147 of the corresponding sixth sliding blocks 137, and the two sixth sliding blocks 137 are respectively pushed to the left side and the right side, when the first battery grabbing assembly 126 descends and the clamping jaws 143 are located below the battery cell, the telescopic rods of the two fifth air cylinders 146 are retracted, so that the battery cell is located in the "L"-shaped openings of the four clamping jaws 143, the first battery grabbing assembly 126 rises, the bottom of the battery cell contacts the inner bottom wall of the "L"-shaped openings of the four clamping jaws 143, at this time, the telescopic rod of the second double-shaft air cylinder 141 is elongated, and the rubber pads 145 at the bottom of the eighth mounting plate 144 abut against the top of the battery cell, so that the fixing of the battery cell is completed.

[0125] The top of the first placing platform 214 of the feeding transfer platform 2, the top of the heating receiving table 417 of the plurality of battery preheating receiving table assemblies 412, and the top of the second placing platform 512 of the discharging transfer platform 5 are all provided with battery placing stations, and the battery placing stations have been disclosed in the patent with the authorization publication number "CN109442999B", and will not be described here.

[0126] Specific implementation process:

[0127] Step one: ten battery cells are arrayed from front to back on the conveying belt of the previous process, and the conveying belt conveying the ten battery cells moves to the left side below the inside of the feeding conveying mechanism 1;

[0128] Step two: the two groups of third linear sliding table modules 112 of the feeding conveying mechanism 1 work, drive the two first fixed rods 113 to move left, and then drive the two groups of first battery grabbing mechanisms 114 to move left;

[0129] The telescopic rods of the fourth cylinders 128 of the two first battery grabbing mechanisms 114 are extended, respectively driving the ten first battery grabbing assemblies 126 to keep the maximum distance between each other, and the distance between each first battery grabbing assembly 126 is consistent with the distance between each battery cell;

[0130] The corresponding first rotary cylinders 125 of each first battery grabbing assembly 126 are working, driving the first battery grabbing assembly 126 to adjust the angle, so that it is flush with the inclination angle of the corresponding battery cell;

[0131] The two fifth cylinders 146 of each first battery grabbing assembly 126 are working, respectively pushing the corresponding block 147 of the sixth sliding block 137, and then pushing the two sixth sliding blocks 137 to the left and right sides, and further separating the four clamping jaws 143 to the left and right sides;

[0132] The telescopic rods of the two third cylinders 119 are lowered, respectively driving the corresponding five first battery grabbing assemblies 126 to descend;

[0133] The clamping jaws 143 of each first battery grabbing assembly 126 are located below the corresponding battery cell, the telescopic rods of the two fifth cylinders 146 are retracted, so that the battery cell is located in the "L" shaped opening of the four clamping jaws 143, the first battery grabbing assembly 126 is raised, the bottom of the battery cell contacts the inner bottom wall of the "L" shaped opening of the four clamping jaws 143, at this time, the telescopic rod of the second double-shaft cylinder 141 is extended, the rubber pad 145 at the bottom of the eighth mounting plate 144 abuts against the top of the battery cell, and the fixing of the battery cell is completed;

[0134] The telescopic rods of the two third cylinders 119 are raised, respectively driving the corresponding five first battery grabbing assemblies 126 to ascend;

[0135] The corresponding first rotary cylinders 125 of each first battery grabbing assembly 126 are working, driving the first battery grabbing assembly 126 to adjust the angle, so that it returns to the initial angle;

[0136] The two third linear sliding table modules 112 of the feeding conveying mechanism 1 are working, driving the two first fixed rods 113 to move to the right, and further driving the two first battery grabbing mechanisms 114 to move to the right;

[0137] Step three: the two fifth linear sliding table modules 211 of the feeding transfer platform 2 drive the first placing platform 214 to move to the left;

[0138] Step four: the two first battery grabbing mechanisms 114 are located above the right side of the top of the first placing platform 214 of the feeding transfer platform 2;

[0139] The extension rods of the two third cylinders 119 are lowered, respectively driving the five groups of first battery grabbing assemblies 126 corresponding thereto to be lowered;

[0140] The extension rods of the second double-shaft cylinders 141 of each group of first battery grabbing assemblies 126 are retracted, the rubber pads 145 at the bottom of the eighth mounting plates 144 are away from the top of the battery cells, and the two fifth cylinders 146 work, respectively pushing the abutting blocks 147 of the sixth sliding blocks 137 corresponding thereto, pushing the two sixth sliding blocks 137 to the left and right sides respectively, and then separating the four clamping jaws 143 to the left and right sides, and the ten battery cells are placed on the top left side of the first placement platform 214 of the loading transfer platform 2;

[0141] The extension rods of the two third cylinders 119 are raised, respectively driving the five groups of first battery grabbing assemblies 126 corresponding thereto to be raised;

[0142] Step five: repeat step two;

[0143] Step six: the two groups of first battery grabbing mechanisms 114 are located directly above the top left side of the first placement platform 214 of the loading transfer platform 2;

[0144] The extension rods of the two third cylinders 119 are lowered, respectively driving the five groups of first battery grabbing assemblies 126 corresponding thereto to be lowered;

[0145] The extension rods of the second double-shaft cylinders 141 of each group of first battery grabbing assemblies 126 are retracted, the rubber pads 145 at the bottom of the eighth mounting plates 144 are away from the top of the battery cells, and the two fifth cylinders 146 work, respectively pushing the abutting blocks 147 of the sixth sliding blocks 137 corresponding thereto, pushing the two sixth sliding blocks 137 to the left and right sides respectively, and then separating the four clamping jaws 143 to the left and right sides, and the ten battery cells are placed on the top left side of the first placement platform 214 of the loading transfer platform 2;

[0146] The extension rods of the two third cylinders 119 are raised, respectively driving the five groups of first battery grabbing assemblies 126 corresponding thereto to be raised;

[0147] Step seven: at this time, one of the battery preheating receiving platform assemblies 412 in the drawer contact type preheating furnace 4 does not place a battery cell;

[0148] The two groups of fifth linear sliding platform modules 211 of the loading transfer platform 2 drive the first placement platform 214 to move right to the twenty groups of second battery grabbing assemblies 315 of the loading and unloading mechanism 3 directly below;

[0149] Step eight: the telescopic rods of the second double shaft air cylinders 141 of the twenty groups of second battery grabbing assemblies 315 of the feeding and discharging mechanism 3 are retracted, the two fifth cylinders 146 work, respectively push the abutting blocks 147 of the corresponding sixth sliding blocks 137, push the two sixth sliding blocks 137 to the left side and the right side respectively, and then separate the four clamping jaws 143 to the left side and the right side;

[0150] The two groups of fourth linear sliding table modules 312 work, drive the two groups of third supports 313 to descend, and then drive the twenty groups of second battery grabbing assemblies 315 to descend;

[0151] The clamping jaws 143 of each group of second battery grabbing assemblies 315 are located below the corresponding battery cells, the telescopic rods of the two fifth cylinders 146 are retracted, the battery cells are located in the "L" shaped openings of the four clamping jaws 143, the two groups of fourth linear sliding table modules 312 work, drive the two groups of third supports 313 to ascend, and then drive each group of second battery grabbing assemblies 315 to ascend, at this time, the bottom of the battery cell is in contact with the inner bottom wall of the "L" shaped opening of the four clamping jaws 143, at this time, the telescopic rod of the second double shaft air cylinder 141 is elongated, the rubber pad 145 at the bottom of the eighth mounting plate 144 abuts against the top of the battery cell, and the fixing of the battery cell is completed;

[0152] The two groups of fourth linear sliding table modules 312 work, drive the two groups of third supports 313 to ascend to the uppermost position;

[0153] Step nine: the two groups of fifth linear sliding table modules 211 of the feeding transfer platform 2 drive the first placing platform 214 to move to the left;

[0154] Step ten: the two groups of first driving assemblies 413 of the drawer contact type preheating furnace 4 work, the two groups of second linear sliding table modules 424 drive the first linear sliding table module 423 to move to the right, so that the rolling bearings 434 of the second limiting assemblies 425 correspond to the positions of the second concave blocks 426 of the plurality of heating receiving tables 417;

[0155] The first linear sliding table module 423 works, drives the second limiting assembly 425 to ascend to the heating receiving table 417 where the battery cell needs to be placed, at this time, the rolling bearing 434 of the second limiting assembly 425 corresponds to the "concave" shaped opening position of the second concave block 426 of the heating receiving table 417;

[0156] The telescopic rod of the second cylinder 431 is elongated, pushes the third connecting plate 432 to move to the second concave block 426, the rolling bearing 434 of the third connecting plate 432 is inserted into the "concave" shaped opening of the second concave block 426, at this time, the cooperation of the second limiting assembly 425 and the second concave block 426 is completed;

[0157] Subsequently, the telescopic rods of the first dual-axis cylinders 420 of each first limiting component 418 corresponding to the heating platform 417 retract, and the first convex block 421 drives the first bolt-type roller 422 to leave the concave opening of the first concave block 419. At this time, the limiting of the heating platform 417 is released.

[0158] The two sets of first drive components 413 of the drawer-type preheating furnace 4 are working, driving the heating platform 417 to move to the left and directly below the twenty sets of second battery gripping components 315;

[0159] Step 11: The two sets of fourth linear slide modules 312 work, driving the two sets of third supports 313 to descend, which in turn drives the twenty sets of second battery gripping components 315 to descend to the top of the heating platform 417.

[0160] The telescopic rod of the second dual-axis cylinder 141 of each group of second battery gripping components 315 retracts, the rubber pad 145 at the bottom of the eighth mounting plate 144 moves away from the top of the battery cell, the two fifth cylinders 146 work, respectively push the abutment 147 of their corresponding sixth slider 137, push the two sixth sliders 137 to the left and right respectively, and then separate the four grippers 143 to the left and right, and place the twenty battery cells on the top of the heating platform 417;

[0161] The two sets of fourth linear slide modules 312 work, driving the two sets of third supports 313 to rise;

[0162] Step 12: The two sets of first drive components 413 of the drawer-type preheating furnace 4 are activated, driving the heating platform 417 to move to the right;

[0163] The concave openings of the two first concave blocks 419 on the front and rear sides of the heating platform 417 correspond to the positions of the first bolt-type rollers 422. The telescopic rods of the two first dual-axis cylinders 420 extend, and the two first bolt-type rollers 422 are respectively inserted into the concave openings of their corresponding first concave blocks 419. At this time, the heating platform 417 is limited.

[0164] At this time, the telescopic rod of each second cylinder 431 retracts, pulling the third connecting plate 432 to move away from the second concave block 426, and the rolling bearing 434 of the third connecting plate 432 disengages from the concave opening of the second concave block 426.

[0165] Step 13: Repeat steps 1 to 12 until each heating plate 417 of the drawer-type preheating furnace 4 is equipped with a battery cell.

[0166] Step Fourteen: Since there is a specific order for placing the battery cells, at this point, the first twenty battery cells placed need to be removed and new battery cells to be preheated need to be placed in.

[0167] Step fifteen: repeat steps one to step six;

[0168] Step sixteen: repeat step ten;

[0169] Step seventeen: two groups of fourth linear slide module 312 work, drive two groups of third support 313 to descend, and then drive twenty groups of second battery grabbing assembly 315 to descend to the top of heating receiving table 417;

[0170] The clamping jaws 143 of each group of second battery grabbing assembly 315 are located below the corresponding battery cell, the extension rods of the two fifth cylinders 146 are retracted, the battery cell is located in the "L" shaped opening of the four clamping jaws 143, two groups of fourth linear slide module 312 work, drive two groups of third support 313 to ascend, and each group of second battery grabbing assembly 315 ascends, at this time the bottom of the battery cell contacts the inner bottom wall of the "L" shaped opening of the four clamping jaws 143, at this time the extension rod of the second double shaft cylinder 141 is elongated, and the rubber pad 145 at the bottom of the eighth mounting plate 144 abuts against the top of the battery cell, completing the fixation of the battery cell;

[0171] Two groups of fourth linear slide module 312 work, drive two groups of third support 313 to ascend, and then drive twenty battery cells to ascend;

[0172] Step seventeen: two groups of first driving assembly 413 of drawer contact type preheating furnace 4 work, two groups of second linear slide module 424 drive first linear slide module 423 to move to the right, so that the rolling bearing 434 of second limiting assembly 425 corresponds to the position of the second concave block 426 of a plurality of heating receiving table 417;

[0173] Step eighteen: two groups of fifth linear slide module of unloading transfer platform 5 drive second placing platform 512 to move from the downward direction of a plurality of battery preheating receiving table assembly 412 to the left to the position directly below twenty groups of second battery grabbing assembly 315;

[0174] Two groups of fourth linear slide module 312 work, drive two groups of third support 313 to descend, and then drive twenty groups of second battery grabbing assembly 315 to descend to the top of second placing platform 512;

[0175] The extension rod of the second double shaft cylinder 141 of each group of second battery grabbing assembly 315 is retracted, the rubber pad 145 at the bottom of the eighth mounting plate 144 moves away from the top of the battery cell, two fifth cylinders 146 work, respectively push the abutting block 147 of the corresponding sixth sliding block 137, push the two sixth sliding blocks 137 to the left and right sides respectively, and then separate the four clamping jaws 143 to the left and right sides, twenty battery cells are placed on the top of second placing platform 512, and then two groups of fourth linear slide module 312 work, drive two groups of third support 313 to ascend;

[0176] After the second placing platform 512 carries twenty battery cells, the two groups of sixth linear slide module 511 drive the second placing platform 512 to move from the several battery preheating receiving platform assemblies 412 to the right, so as to transport the preheated battery cells to the unloading conveying mechanism 6, and the unloading conveying mechanism 6 grabs the preheated battery cells on the top of the second placing platform 512 and sends them to the next process;

[0177] Step nineteen: at this time, the group of battery preheating receiving platform assemblies 412 on which the twenty battery cells are taken out from the drawer contact type preheating furnace 4 does not place the battery cells;

[0178] The two groups of fifth linear slide module 211 of the feeding transfer platform 2 drive the first placing platform 214 to move to the right to be directly below the twenty groups of second battery grabbing assemblies 315 of the feeding and discharging mechanism 3;

[0179] Step twenty: repeat step eight;

[0180] Step twenty-one: the two groups of first driving assemblies 413 of the drawer contact type preheating furnace 4 work, the two groups of second linear slide module 424 drive the first linear slide module 423 to move to the left, and in turn drive the heating receiving platform 417 of the group of battery preheating receiving platform assemblies 412 which takes out twenty battery cells to move to the left, and the heating receiving platform 417 moves to the left to be directly below the twenty groups of second battery grabbing assemblies 315;

[0181] Step twenty-two: repeat steps eleven and twelve.

[0182] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A battery cell drawer contact preheating tunnel furnace characterized by: The device comprises a feeding conveying mechanism (1), a feeding transfer platform (2), a feeding and discharging mechanism (3), a drawer contact preheating furnace (4), a discharging transfer platform (5) and a discharging conveying mechanism (6) arranged in sequence from left to right. The feeding conveying mechanism (1) is used for placing the battery cell grabbed by the feeding conveying mechanism (1) on the top of the feeding transfer platform (2). The feeding transfer platform (2) is used for placing the battery cell grabbed by the feeding conveying mechanism (1) and moving the battery cell to the left lower end inside the drawer contact preheating furnace (4). The feeding and discharging mechanism (3) is used for grabbing the preheated battery cell in the drawer contact preheating furnace (4) and placing the battery cell on the top of the discharging transfer platform (5), and grabbing the battery cell on the top of the feeding transfer platform (2) and placing the battery cell in the drawer contact preheating furnace (4). The drawer contact preheating furnace (4) is used for heating the battery cell inside the drawer contact preheating furnace (4). The discharging transfer platform (5) is used for moving below the feeding and discharging mechanism (3), placing the preheated battery cell in the drawer contact preheating furnace (4) and moving the battery cell to the discharging conveying mechanism (6). The discharging conveying mechanism (6) is used for grabbing the battery cell on the top of the discharging transfer platform (5).

2. The battery cell drawer contact preheat tunnel furnace of claim 1, wherein: The drawer contact preheating furnace (4) comprises two groups of first supports (411) with a "mouth" shaped transverse vertical section, a plurality of battery preheating receiving platform assemblies (412) and two groups of first driving assemblies (413). The two first supports (411) are placed in front and back, the plurality of battery preheating receiving platform assemblies (412) are arrayed and slidably connected between the right sides of the two first supports (411) from top to bottom, and the two groups of first driving assemblies (413) are respectively located on the right side of the front side of the front first support (411) and the right side of the rear side of the rear first support (411). Each battery preheating receiving platform assembly (412) comprises two first cross bars (414), two first sliding rails (415), four first sliding blocks (416), a heating receiving platform (417) and two first limiting assemblies (418), the two first cross bars (414) are fixed in the "mouth" shaped interiors of the two first supports (411), the two first sliding rails (415) are fixed on the opposite sides of the two first cross bars (414) in a transverse direction, the two first sliding rails (415) are slidably connected with the two first sliding blocks (416) respectively, the heating receiving platform (417) is located between the two first sliding rails (415), the front side and the rear side of the heating receiving platform (417) are fixedly connected with the corresponding first sliding blocks (416), and the two first limiting assemblies (418) are fixed on the right sides of the top of the two first cross bars (414). The first limiting assembly (418) located at the front side and the first limiting assembly (418) located at the rear side are symmetrically and mirror-imaged along the transverse center axis of the heating workbench (417). The first limiting assembly (418) located at the front side each comprises a first concave block (419), a first double-shaft air cylinder (420), a first convex block (421), and a first bolt-type roller (422). The first concave block (419) is fixed at the right side of the front side of the heating workbench (417). The "concave" opening of the first concave block (419) faces forward. The first double-shaft air cylinder (420) is fixed at the top of the corresponding first cross bar (414). The first convex block (421) is located behind the first double-shaft air cylinder (420). The first convex block (421) is fixedly connected with the telescopic rod of the first double-shaft air cylinder (420). The protrusion of the first convex block (421) is located at the rear side. The first bolt-type roller (422) is threadedly connected to the bottom of the protrusion of the first convex block (421). The first bolt-type roller (422) is inserted into the "concave" opening of the first concave block (419).

3. The battery cell drawer contact preheat tunnel furnace of claim 2, wherein: The two groups of first driving assemblies (413) are symmetrically and mirror-imaged along the transverse center axis of the heating workbench (417). The first driving assembly (413) located at the front side comprises a first linear sliding table module (423), two groups of second linear sliding table modules (424), a second limiting assembly (425), and a plurality of second concave blocks (426). The two groups of second linear sliding table modules (424) are fixed horizontally at the upper end and the lower end of the front side of the first support (411) located at the front side. The first linear sliding table module (423) is vertically and slidingly connected to the right side of the front side of the two groups of second linear sliding table modules (424). The second limiting assembly (425) is slidingly connected to the left side of the first linear sliding table module (423). The plurality of second concave blocks (426) are fixed at the right side of the front side of the plurality of heating workbenches (417), respectively. The "concave" opening of each second concave block (426) faces forward. The second limiting assembly (425) is clamped with the "concave" opening of the second concave block (426). The second limiting assembly (425) located at the front side comprises a first connecting plate (427), a second connecting plate (428), two second sliding rails (429), two second sliding blocks (430), a second air cylinder (431), a third connecting plate (432), a fourth connecting plate (433), a rolling bearing (434) and a first rodless bolt (435), the first connecting plate (427) is horizontally and vertically connected to the front side of the first linear sliding table module (423), the second connecting plate (428) is vertically fixed to the left side of the first connecting plate (427), the two second sliding rails (429) are vertically fixed to the left side of the second connecting plate (428), the two second sliding blocks (430) are respectively connected to the left side of the two second sliding rails (429), the third connecting plate (432) is vertically fixed to the left side of the two second sliding blocks (430), the second air cylinder (431) is fixed to the left side of the second connecting plate (428), the second air cylinder (431) is fixedly connected with the third connecting plate (432), the fourth connecting plate (433) is vertically fixed to the left side of the third connecting plate (432), the vertical section of the fourth connecting plate (433) is concave, the concave opening of the fourth connecting plate (433) is backward, the first threaded hole is arranged on the top rear side of the fourth connecting plate (433), the rolling bearing (434) is horizontally arranged in the concave opening of the fourth connecting plate (433), the first threaded hole of the fourth connecting plate (433) and the inner hole of the rolling bearing (434) have the same center, and the first rodless bolt (435) is inserted into the inner hole of the rolling bearing (434) and is in threaded connection with the first threaded hole.

4. The battery cell drawer contact preheat tunnel furnace of claim 3, wherein: The upper feeding conveying mechanism (1) and the lower discharging conveying mechanism (6) are placed in mirror symmetry along the drawer contact type preheating furnace (4); The upper feeding conveying mechanism (1) comprises a square first frame (111), two groups of third linear sliding table modules (112), two first fixed rods (113) and two groups of first battery grabbing mechanisms (114), the first frame (111) is located to the left of the drawer contact type preheating furnace (4), the two groups of third linear sliding table modules (112) are horizontally fixed to the top left side and the top right side of the first frame (111), the two first fixed rods (113) are placed in the vertical direction and are slidably connected to the top of the two groups of third linear sliding table modules (112), and the two groups of first battery grabbing mechanisms (114) are fixed to the front side and the rear side between the two first fixed rods (113).

5. The battery cell drawer contact preheat tunnel furnace of claim 4, wherein: The two groups of first battery grabbing mechanisms (114) are placed in mirror symmetry along the horizontal center axis of the first frame (111). The first battery grasping mechanism (114) located at the rear side includes a first fixing plate (115), two second fixing plates (116), a third fixing plate (117), two fourth fixing plates (118), a third cylinder (119), a fifth fixing plate (120), four sixth fixing plates (121), a seventh fixing plate (122), two eighth fixing plates (123), two ninth fixing plates (124), five first rotary cylinders (125), five groups of first battery grasping components (126), two third slide rails (127), and a fourth cylinder (128); The third fixing plate (117) is longitudinally horizontally located at the rear side directly below the two first fixing rods (113). The first fixing plate (115) and the two second fixing plates (116) are both fixedly located at the rear side of the bottom of the two first fixing rods (113). The middle position of the first fixing plate (115) corresponds to that of the third fixing plate (117). The two second fixing plates (116) are respectively located in front of and behind the first fixing plate (115). The two third slide rails (127) are longitudinally placed on the left and right sides of the top of the third fixing plate (117). The two fourth fixing plates (118) are longitudinally vertically fixed on the left and right sides of the top of the third fixing plate (117). The two fourth fixing plates (118) are located between the two third slide rails (127). The transverse vertical section of the fifth fixing plate (120) is in the shape of "冂", and the fifth fixing plate (120) is fixedly located at the middle position of the top of the third fixing plate (117); The third cylinder (119) is fixedly located at the middle position of the top of the first fixing plate (115). The bottom of the telescopic rod of the third cylinder (119) is fixedly connected to the top of the fifth fixing plate (120). The left and right sides of the top of each second fixing plate (116) are inserted with a first guide rod (129). The bottom of each first guide rod (129) is fixedly connected to the top of the third fixing plate (117). The tops of the two first guide rods (129) located at the front side and the tops of the two first guide rods (129) located at the rear side are both fixedly provided with a tenth fixing plate (130); The seventh fixing plate (122) is fixedly located at the front side of the bottom of the third fixing plate (117). Four third sliders (131) are slidably connected in an array on the top of each third slide rail (127). The transverse vertical sections of the four sixth fixing plates (121) are all in the shape of "U". The third fixing plate (117) is located within the "U" - shaped openings of the four sixth fixing plates (121). The upper ends of the inner front side walls and the inner rear side walls of the four sixth fixing plates (121) are respectively fixedly connected to the four third sliders (131) on the top of the two third slide rails (127); The five first rotary cylinders (125) are respectively fixedly located at the bottoms of the four sixth fixing plates (121) and the seventh fixing plate (122). The five groups of first battery grasping components (126) are respectively fixedly located at the bottoms of the rotating rods of the five first rotary cylinders (125); The top front side and the top rear side of the third fixed plate (117) are both provided with a first waist-shaped through hole arranged longitudinally, the top of the sixth fixed plate (121) at the rear side is fixedly provided with a displacement block (132), the displacement block (132) is located in the first waist-shaped through hole at the rear side, and the fourth air cylinder (128) is longitudinally fixed at the top middle position of the third fixed plate (117); the rear side of the telescopic rod of the fourth air cylinder (128) is fixedly connected with the displacement block (132); The two eighth fixed plates (123) and the two ninth fixed plates (124) are both rectangular strips, the left side of each of the two eighth fixed plates (123) and the two ninth fixed plates (124) is provided with a second waist-shaped through hole arranged longitudinally, and the left side of the seventh fixed plate (122), the left side of the second sixth fixed plate (121) from front to back, the right side of the first sixth fixed plate (121) from front to back, and the right side of the third sixth fixed plate (121) from front to back are all threadedly connected with second bolt-type rollers (133); The rear side of each of the two eighth fixed plates (123) is fixedly connected with the left side of the first sixth fixed plate (121) from front to back and the left side of the third sixth fixed plate (121) from front to back; the second waist-shaped through hole of the eighth fixed plate at the first sixth fixed plate (121) from front to back is sleeved on the second bolt-type roller (133) of the seventh fixed plate (122), and the second waist-shaped through hole of the eighth fixed plate (123) at the third sixth fixed plate (121) from front to back is sleeved on the second bolt-type roller (133) of the second sixth fixed plate (121) from front to back; The rear side of each of the two ninth fixed plates (124) is fixedly connected with the right side of the second sixth fixed plate (121) from front to back and the right side of the fourth sixth fixed plate (121) from front to back; the second waist-shaped through hole of the ninth fixed plate (124) at the second sixth fixed plate (121) from front to back is sleeved on the second bolt-type roller (133) of the first sixth fixed plate (121) from front to back, and the second waist-shaped through hole of the ninth fixed plate (124) at the fourth sixth fixed plate (121) from front to back is sleeved on the second bolt-type roller (133) of the third sixth fixed plate (121) from front to back.

6. The battery cell drawer contact preheat tunnel furnace of claim 5, wherein: The feeding and discharging mechanism (3) comprises two groups of second supports (311) in the shape of a "mouth" in the transverse vertical section, two groups of fourth linear slide table modules (312), two groups of third supports (313), a first mounting plate (314), and twenty groups of second battery grabbing assemblies (315). Two groups of second supports (311) are placed front and back, two groups of fourth linear slide module groups (312) are vertically placed on the corresponding sides of the two groups of second supports (311), the left side and the right side of each group of fourth linear slide module groups (312) are fixedly provided with fourth slide rails (316) in a vertical manner, two fourth sliding blocks (317) are slidably connected on each fourth slide rail (316), each group of fourth linear slide module groups (312) is slidably connected with a second mounting plate (318), and each second mounting plate (318) is fixedly connected with the corresponding four fourth sliding blocks (317); Two groups of third supports (313) are in the shape of rectangles, and the two groups of third supports (313) are respectively fixed on the rear side of the front second mounting plate (318) and the front side of the rear second mounting plate (318); Twenty groups of second battery grabbing assemblies (315) are fixed on the bottom of the first mounting plate (314) in the form of ten rows and two columns.

7. The battery cell drawer contact preheat tunnel furnace of claim 6, wherein: The feeding transfer platform (2) comprises two groups of fifth linear slide module groups (211), two third mounting plates (212), four first supporting rods (213), and a first placing platform (214). Two groups of fifth linear slide module groups (211) are placed horizontally front and back, and the free left half of the two fifth linear slide module groups (211) is located below the left inside of the drawer contact type preheating furnace (4); two third mounting plates (212) are slidably connected to the top of the two fifth linear slide module groups (211), four first supporting rods (213) are fixed on the top of the two third mounting plates (212) in pairs, and the first placing platform (214) is fixed on the top of the four first supporting rods (213).

8. The battery cell drawer contact preheat tunnel furnace of claim 7, wherein: The discharging transfer platform (5) comprises two groups of sixth linear slide module groups (511) and a second placing platform (512). Two groups of sixth linear slide module groups (511) are placed horizontally front and back, and the two groups of sixth linear slide module groups (511) are located below the drawer contact type preheating furnace (4) from left to right two-thirds, and the right side of the two sixth linear slide module groups (511) is located at the left one-fourth of the drawer contact type preheating furnace (4); The second placing platform (512) is slidably connected to the top of the two groups of sixth linear slide module groups (511).

9. The battery cell drawer contact preheat tunnel furnace of claim 8, wherein: The structure of each first battery grabbing assembly (126) and each second battery grabbing assembly (315) is consistent; The first battery grabbing assembly (126) comprises a fourth mounting plate (134), a fifth slide rail (135), two fifth sliding blocks (136), two sixth sliding blocks (137), a limiting plate (138), two fifth mounting plates (139), two sixth mounting plates (140), two second double-shaft air cylinders (141), two seventh mounting plates (142), and four clamping jaws (143). The fourth mounting plate (134) is in the shape of "10" in cross section, the fifth sliding rail (135) is slidably connected to the bottom of the fourth mounting plate (134), the two fifth sliding blocks (136) are slidably connected to the bottom left side and the bottom right side of the fifth sliding rail (135), the longitudinal vertical sections of the two sixth sliding blocks (137) are both in the shape of "H", the upper end bottom walls of the two sixth sliding blocks (137) are fixedly connected with the bottoms of the two fifth sliding blocks (136) respectively, the limiting plate (138) is in the shape of "U" in vertical cross section, the fourth mounting plate (134) is located in the "U" shaped opening of the limiting plate (138), the lower end of the limiting plate (138) is located inside the lower ends of the two sixth sliding blocks (137), and the inner bottom wall of the limiting plate (138) abuts against the lower end top wall of the two sixth sliding blocks (137), the two fifth mounting plates (139) are fixedly located at the bottoms of the two sixth sliding blocks (137) respectively in vertical direction, the two sixth mounting plates (140) are fixedly located at the right side lower end of the left fifth mounting plate (139) and the left side lower end of the right fifth mounting plate (139) respectively, the two second double-shaft air cylinders (141) are fixedly located at the right side of the left sixth mounting plate (140) and the left side of the right sixth mounting plate (140) respectively, the longitudinal vertical sections of the two seventh mounting plates (142) are both in the shape of "convex", the two seventh mounting plates (142) are fixedly located at the lower ends of the two sixth mounting plates (140) away from the corresponding second double-shaft air cylinders (141) respectively, the transverse vertical sections of the two clamping jaws (143) are both in the shape of "L", two clamping jaws (143) are fixedly installed on the side of each seventh mounting plate (142) away from the corresponding second double-shaft air cylinder (141), and the "L" shaped opening of each clamping jaw (143) faces the corresponding second double-shaft air cylinder (141); The bottom of the telescopic rod of each second double-shaft air cylinder (141) is fixedly provided with an eighth mounting plate (144), and the bottom front side and the bottom rear side of each eighth mounting plate (144) are both fixedly provided with a rubber pad (145); The middle positions of the bottom front side and the bottom rear side of the fourth mounting plate (134) are both fixedly provided with a fifth air cylinder (146), the front side of the left sixth sliding block (137) and the rear side of the right sixth sliding block (137) are both fixedly provided with an abutting block (147), the telescopic rod of the front fifth air cylinder (146) is fixedly connected with the abutting block (147) of the left sixth sliding block (137), and the telescopic rod of the rear fifth air cylinder (146) is fixedly connected with the abutting block (147) of the right sixth sliding block (137).

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