Battery box processing production system

Abstract

A battery box processing production system comprises a hot press forming tool, a feeding trolley, a tunnel furnace, a transfer trolley, a molding press, a transfer trolley, an automatic conveying line and a discharging trolley, the feeding trolley, the tunnel furnace, the transfer trolley and the molding press are sequentially in butt joint in a linear mode, the hot press forming tool is used for fixing products, the tunnel furnace is used for heating and softening the products, and the transfer trolley is used for transferring the products. The transfer trolley is located between the molding press and the feeding end of the automatic conveying line, and the discharging trolley and the feeding trolley are located on the same side. The hot press forming tool comprises a positioning frame, a flange edge clamp and a positioning column, and universal balls are arranged at the bottom of the positioning frame. And the assembly trolley is connected with the feeding trolley and the discharging trolley through connecting plates, and universal balls and limiting strips are arranged on all the trolleys and the connecting plates. The hot press molding device is suitable for hot press molding of products with large sizes, heavy weights and various shapes and molding of multi-layer composite materials, is wide in applicability and compact and reasonable in overall layout, and can save the occupied space of equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of processing equipment, in particular to a battery box processing and production system. Background Art

[0002] The molding process of some products requires hot pressing, such as the plastic molding of some plastic shells. Some composite materials are made of layers of materials, including thermoplastic and thermosetting materials. Hot pressing is also required to compound these materials together so that the materials can be softened and bonded to each other. Existing hot pressing methods mostly use pressing while heating, or heating in the molding mold cavity, or using upper and lower pressing plates with heating functions for hot pressing. These methods are not suitable for large products or products with special structures. For large shells, such as battery boxes, the hot pressing process needs to be equipped with corresponding tooling so that the product can be safely transferred between various processes. However, these toolings are large in size and heavy in weight. For example, the battery box molding tooling weighs about 80kg, which is inconvenient to move manually and is inconvenient to transfer between various processes. In order to save manpower, tooling needs to be reflowed during the production process to make the layout of the entire production line reasonable to save space and production processes. Utility Model Content

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a battery box processing and production system with a compact layout structure, which can save space and power and is suitable for hot pressing of large-size and heavy-weight products.

[0004] The utility model is realized through the following technical solutions:

[0005] A battery box processing and production system includes a hot pressing tool, a feeding trolley, a tunnel furnace, a transfer trolley, a molding machine, a transfer trolley, an automatic conveyor line and a discharge trolley. The feeding trolley, the tunnel furnace, the transfer trolley and the molding machine are connected in a straight line in sequence. The hot pressing tool is used to fix the materials and products to be processed for heating, transfer and molding. The feeding trolley is used to transport the materials fixed on the hot pressing tool to the tunnel furnace. The tunnel furnace is used to heat the materials fixed on the hot pressing tool. The transfer trolley is located between the tunnel furnace and the molding machine and is used to transport the heated materials fixed on the hot pressing tool to the molding machine. The molding machine is used to The heated and softened materials are molded and assembled into shape; the automatic conveyor line and the discharge trolley are arranged in a straight line and are parallel to the straight line where the feeding trolley, tunnel furnace, transfer trolley and molding machine are located. The molding machine and the feeding end of the automatic conveyor line are located on the same side of the two straight lines. The transfer trolley is located between the molding machine and the feeding end of the automatic conveyor line, and is used to convey the products molded on the molding machine to the automatic conveyor line. The discharge trolley is docked with the discharge end of the automatic conveyor line. After the products fixed on the hot pressing tooling are processed, they are finally returned to the discharge trolley by the automatic conveyor line. The discharge trolley and the feeding trolley are located on the same side of the two straight lines, and the discharge trolley is located close to the feeding trolley.

[0006] Furthermore, the hot pressing tooling includes a positioning frame and a quick clamp. The positioning frame is a hollow frame structure. The quick clamp is arranged at the four edges of the positioning frame. After the material to be processed is positioned in the hollow positioning frame, it is fixed by the quick clamp.

[0007] Furthermore, the quick clamp includes a flange quick clamp and a box quick clamp, the positioning frame includes an upper frame and a lower frame connected to each other, and several of the box quick clamps are arranged at the edge positions around the upper frame, for clamping the edge part of the forming plate to fix the forming plate, the forming plate is used to form the box part of the battery box (the bottom surface and four side surfaces of the battery box) by hot pressing, and the flange quick clamp is arranged at the edge position of the lower frame, for fixing the forming edge, and the forming edge is used to be pressed with the four sides of the forming plate by hot pressing to form the flange edge of the battery box, and the orthographic projections of the four sides of the forming plate fall on the four sides of the four forming edges respectively, so that when the forming plate falls to the position of the lower frame, its four sides can be supported on the forming edges, and a box structure with flange edges is formed after hot pressing, which is the battery box.

[0008] Furthermore, the molding machine includes an oil cylinder, a pressing plate, a fixing seat, a forming mold and an opening and clamping cylinder. The forming mold is arranged on the fixing seat, and when the hot pressing molding tool enters the molding machine, the forming mold and the hot pressing molding tool are relative to each other, and the box quick clamp on the hot pressing molding tool is relative to the opening and clamping cylinder. The box quick clamp opens and releases the forming plate under the action of the opening and clamping cylinder. The forming plate falls due to softening and gravity, and its four sides are supported on the forming edge when it falls to the position of the lower frame; the pressing plate and the forming mold are arranged opposite to each other, and the oil cylinder is connected to the pressing plate. The oil cylinder drives the pressing plate to move downward to press the forming plate and the forming edge on the forming mold, so that the edge part of the forming plate and the forming edge are hot-pressed into one, becoming the flange edge of the battery box, and the middle part of the forming plate is hot-pressed into the box part of the battery box.

[0009] Furthermore, a universal ball bearing is provided at the bottom of the positioning frame, and a plurality of the universal ball bearings are distributed at the four corners of the bottom of the positioning frame.

[0010] Furthermore, it also includes an assembly trolley, which is used to provide an operating platform to fix the material to be processed on the hot pressing tooling. The assembly trolley is located between the discharge trolley and the feed trolley, and the feed trolley, assembly trolley and discharge trolley are located on the same straight line.

[0011] Furthermore, the feed trolley and the assembly trolley, and the assembly trolley and the discharge trolley are connected by connecting plates. The feed trolley, the assembly trolley, the discharge trolley and the connecting plates are all provided with universal ball bearings to facilitate the rolling of the hot pressing tooling on them for transfer between different workstations.

[0012] Furthermore, limit bars are provided on the operating surfaces of the assembly trolley, feeding trolley and discharging trolley, which are used to limit the hot pressing tooling when it is transferred between the feeding trolley, the assembly trolley and the discharging trolley. The side of the feeding trolley facing the tunnel furnace and the side of the discharging trolley facing the automatic conveyor line are left empty (no limit bars are provided) for the hot pressing tooling to pass through.

[0013] Furthermore, the operating tables of the transfer trolley and the transfer trolley are equipped with universal ball bearings, and the edges of the operating tables of the transfer trolley and the transfer trolley are equipped with limit bars to limit the position of the hot press forming tooling when moving on them. The bottom of the assembly trolley, feeding trolley, unloading trolley, transfer trolley and transfer trolley are all equipped with support feet and universal wheels, which can be fixed or moved.

[0014] Furthermore, the tunnel furnace includes an inlet iron curtain, a conveying chain plate, a heating tunnel and an outlet iron curtain. The conveying chain plate is arranged in the heating tunnel and extends out of the inlet and outlet of the heating tunnel. The inlet iron curtain is arranged at the inlet of the heating tunnel, and the outlet iron curtain is arranged at the outlet of the heating tunnel.

[0015] The utility model provides a tunnel furnace and a molding machine, so that the product can be heated as a whole in the tunnel furnace first, softened as a whole, and then molded in the molding machine, so that the product can be heated completely and evenly, and the quality of the final molded product can be improved. It is suitable for the hot pressing molding of large-size, heavy-weight and various-shaped products, as well as the molding of multi-layer composite materials, and has a wide applicability. Through the position layout of the hot pressing molding tooling, feeding trolley, tunnel furnace, transfer trolley, molding machine, transfer trolley, automatic conveyor line, discharging trolley and assembly trolley, the entire layout is compact and reasonable, which can save the overall space occupied by the equipment, and at the same time The molding tooling and products can be returned to the loading position, the products can be fully cooled, an assembly trolley is set between the feeding trolley and the discharging trolley, and the molding tooling can also be effectively returned for continuous recycling; the feeding trolley, transfer trolley, transfer trolley, discharging trolley and assembly trolley are all provided with universal ball bearings, and the molding tooling is also provided with universal ball bearings, so that when the molding tooling circulates on these trolleys, whether automatically or manually, it can save power and improve production efficiency; the structure of the hot pressing molding tooling is suitable for the positioning and fixation of battery box products, which is convenient for the product heating and molding processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the planar structure of an embodiment of the present utility model.

[0017] Figure 2 It is a schematic structural diagram of the feeding trolley, the assembly trolley and the discharging trolley in the embodiment of the present utility model.

[0018] Figure 3 It is a schematic diagram of the connection between the assembly trolley and the discharge trolley in an embodiment of the present utility model.

[0019] Figure 4 This is a schematic structural diagram of the hot pressing tooling in an embodiment of the present utility model.

[0020] Figure 5 for Figure 4 A magnified view of the structure at point A.

[0021] Figure 6 This is a structural schematic diagram of the hot pressing forming tooling from another perspective in an embodiment of the present utility model.

[0022] Figure 7 A schematic structural diagram of a battery box in an embodiment of the present utility model.

[0023] Figure 8 It is a structural schematic diagram of the molding machine in an embodiment of the present utility model.

[0024] Figure 9 It is a schematic structural diagram of a tunnel furnace in an embodiment of the present utility model.

[0025] Figure markings: 1-feeding trolley; 2-tunnel furnace; 3-transfer trolley; 4-molding machine; 5-transfer trolley; 6-automatic conveyor line; 7-discharging trolley; 8-assembly trolley; 9-hot pressing tooling; 10-connecting plate; 11-universal ball; 12-limiting bar; 13-battery box; 131-flange edge; 132-box body; 14-forming plate; 15-forming edge; 21-imported iron curtain; 22-conveying chain plate; 23-heating tunnel; 24-export iron curtain; 41-fixed seat; 42-forming mold; 43-pressing plate; 44-oil cylinder; 45-opening clamping cylinder; 91-positioning frame; 92-box body quick clamp; 93-flange edge quick clamp; 911-upper frame; 912-lower frame. DETAILED DESCRIPTION

[0026] A battery box processing and production system, such as Figure 1 , including hot pressing tooling 9, a feeding trolley 1, a tunnel furnace 2, a transfer trolley 3, a molding machine 4, a transfer trolley 5, an automatic conveyor line 6 and a discharging trolley 7. The feeding trolley 1, the tunnel furnace 2, the transfer trolley 3 and the molding machine are connected in a straight line. The hot pressing tooling 9 is used to fix the materials to be processed and the products for heating, transfer and molding. The feeding trolley 1 is used to transport the materials fixed on the hot pressing tooling 9 to the tunnel furnace 2. The tunnel furnace 2 is used to heat the materials fixed on the hot pressing tooling 9. The transfer trolley 3 is located between the tunnel furnace 2 and the molding machine, and is used to transport the heated materials to be processed fixed on the hot pressing tooling 9 to the molding machine. The molding machine 4 is used to heat and soften the materials. The finished materials are molded and assembled; the automatic conveyor line 6 and the discharge trolley 7 are arranged in a straight line and are parallel to the straight line where the feeding trolley 1, the tunnel furnace 2, the transfer trolley 3 and the molding machine are located. The molding machine 4 and the feeding end of the automatic conveyor line 6 are located on the same side of the two straight lines. The transfer trolley 5 is located between the molding machine 4 and the feeding end of the automatic conveyor line 6, and is used to transport the products molded on the molding machine 4 to the automatic conveyor line 6. The discharge trolley 7 is docked with the discharge end of the automatic conveyor line 6. After the products fixed on the hot pressing tooling 9 are processed, they are finally returned to the discharge trolley 7 by the automatic conveyor line 6. The discharge trolley 7 and the feeding trolley 1 are located on the same side of the two straight lines, and the discharge trolley 4 is located close to the feeding trolley 1. Such a structural layout allows the hot pressing tooling 9 and the product to return, and the products to be loaded and unloaded on the same side, as well as the recycling of the hot pressing tooling 9. This embodiment is mainly used for processing a battery box 13. The battery box 13 is made of a composite material of glass fiber + PP. The material to be processed is a flat plate structure. After being heated and softened in a tunnel furnace 2, it is pressed into a battery box 13 with a box structure in a molding machine 4.

[0027] In this embodiment, for ease of operation, Figures 1 to 3An assembly trolley 8 is also provided between the discharging trolley 7 and the feeding trolley 1, for the operator to fix the material to be processed on the hot pressing tooling 9 on the table, or to remove the processed product from the hot pressing tooling 9. The feeding trolley 1, the assembly trolley 8 and the discharging trolley 7 are located on the same straight line, which facilitates the transfer of the hot pressing tooling 9 that has fixed the material to be processed to the feeding trolley 1, and waits on the feeding trolley 1 to enter the tunnel furnace 2. It also facilitates the transfer of the hot pressing tooling 9 on the discharging trolley 7 to the assembly trolley 8 for product disassembly and unloading. After disassembly, the hot pressing tooling 9 can continue to fix the material to be processed and continue to circulate on the production line.

[0028] In order to facilitate the flow of the hot pressing tooling 9 between the feeding trolley 1, the assembly trolley 8 and the discharging trolley 7, the feeding trolley 1 and the assembly trolley 8, and the assembly trolley 8 and the discharging trolley 7 are connected by a connecting plate 10. The feeding trolley 1, the assembly trolley 8, the discharging trolley 7 and the connecting plate 10 are all provided with universal ball bearings 11, which facilitate the rolling of the hot pressing tooling 9 thereon so as to transfer between different workstations and save power or manpower.

[0029] Limiting bars 12 are provided on the operating surfaces of the assembly trolley 8, the feeding trolley 1 and the discharging trolley 7, which are used to limit the hot pressing tooling 9 when it is transferred between the feeding trolley 1, the assembly trolley 8 and the discharging trolley 7. The side of the feeding trolley 1 facing the tunnel furnace 2 and the side of the discharging trolley 7 facing the automatic conveyor line 6 are left empty (no limiting bars 12 are provided), so that the hot pressing tooling 9 can be rolled from the feeding trolley 1 to the tunnel furnace 2, and rolled from the automatic conveyor line 6 to the discharging trolley 7.

[0030] In this embodiment, the operating tables of the transfer trolley 3 and the transfer trolley 5 are also provided with universal ball bearings 11. The edges of the operating tables of the transfer trolley 3 and the transfer trolley 5 are provided with limit bars 12 for limiting the position of the hot pressing tooling 9 when it moves thereon. The bottoms of the assembly trolley 8, the feeding trolley 1, the discharging trolley 7, the transfer trolley 3 and the transfer trolley 5 are all provided with support feet and universal wheels. These trolleys can be fixedly supported or movable.

[0031] The function of the hot pressing tooling 9 is to fix the material to be processed so that the material can flow through each workstation and can be recycled. Its shape and structure can be determined according to the structure of the product. As one embodiment, Figure 4 、 Figure 5 The hot pressing tool 9 includes a positioning frame 91 and a quick clamp. The positioning frame 91 is a hollow frame structure. The quick clamp is arranged at the edges of the positioning frame 91. After the material to be processed is positioned in the hollow positioning frame 91, it is fixed by the quick clamp. The quick clamp is in the form of a common quick clamp chuck.

[0032] Battery box 13 (such as Figure 7 ) is the final processed product, which is made of forming plates 14 and forming edges 15. It is necessary to fix the forming plates 14 and forming edges 15 on the hot pressing tooling 9 in advance, and then perform subsequent heating, softening and molding. In order to better fix the material and mold it, as shown in the following figure: Figure 4 、 Figure 5 The quick clamps include a flange quick clamp 93 and a box quick clamp 92. The positioning frame 91 includes an upper frame 911 and a lower frame 912 connected to each other. Several of the box quick clamps 92 are arranged at the edges of the upper frame 911 to clamp the edge of the forming plate 14 to fix the forming plate 14. The forming plate 14 is used to form the box part 132 (the bottom surface and four sides of the battery box 13) of the battery box 13 by hot pressing. The clamp 93 is arranged at the edge position of the lower frame 912 and is used to fix the forming edge 15. The forming edge 15 is used to be pressed with the four sides of the forming plate 14 through hot pressing to form the flange edge 131 of the battery box 13, and the positive projections of the four sides of the forming plate 14 fall on the four sides of the forming edge 15 respectively, so that when the forming plate 14 falls to the position of the lower frame 912, its four sides can be supported on the forming edge 15. After hot pressing, a box structure with a flange edge 131 is formed, which is the battery box 13.

[0033] The molding machine 4 molds the material softened by heating in the tunnel furnace 2 (the temperature reaches 230°C and is in a semi-molten state) into the shape of the final molded product, the battery box 13, so that the molding plate 14 becomes a box structure with a bottom surface and side surfaces, and the molding edge 15 is hot-pressed into one with the edge of the molding plate 14 to form the flange edge 131 of the battery box 13. Figure 8The molding machine 4 includes an oil cylinder 44, a pressing plate 43, a fixing seat 41, a forming mold 42 and an opening cylinder 45. The forming mold 402 is set on the fixing seat 41, and when the hot pressing molding tool 9 enters the molding machine 4, the forming mold 42 is opposite to the position of the hot pressing molding tool 9, and the box quick clamp 92 on the hot pressing molding tool 9 is opposite to the opening cylinder 45. The box quick clamp 92 is opened and released by the opening cylinder 45 to release the forming plate 14. The forming plate 14 falls due to softening (230℃) and gravity (the size of the forming plate 14 needs to be the same as the box quick clamp 9). 2, so that it can be clamped before softening and can just fall after being released). When it falls to the position of the lower frame 912, its four sides are supported on the forming edge 15. After the two overlap, they can be pressed together; the pressing plate 43 is arranged opposite to the forming mold 42, and the oil cylinder 44 is connected to the pressing plate 43. The oil cylinder 44 drives the pressing plate 43 to move downward to press the forming plate 14 and the forming edge 15 onto the forming mold 42, so that the edge portion of the forming plate 14 and the forming edge 15 are hot-pressed into one piece, forming the flange edge 131 of the battery box 13, and the middle portion of the forming plate 14 is hot-pressed into the box portion 132 of the battery box 13. During the molding process of the battery box 13, the flange edge quick clamp 93 always remains in a clamping state. After the battery box 13 is formed, the molded product can continue to be fixed on the hot pressing mold tooling 9, and the product will be subsequently circulated with the hot pressing mold tooling 9. The clamping cylinder 45 of this embodiment also has the function of driving the hot pressing tooling 9 to descend, so that the hot pressing tooling 9 and the forming mold 42 cooperate to achieve the compression molding of the product.

[0034] In order to facilitate the movement of tooling, such as Figure 6 A universal ball 11 is also provided at the bottom of the positioning frame 91. Several of the universal ball 11 are distributed on the four corners of the bottom of the positioning frame 91, and cooperate with the universal ball 11 on each trolley to achieve a labor-saving effect and improve the convenience of transferring the hot pressing tooling 9 and the products thereon.

[0035] The function of the tunnel furnace 2 is to heat and soften the product. Figure 6 It includes an inlet iron curtain 21, a conveying chain plate 22, a heating tunnel 23 and an outlet iron curtain 24. The conveying chain plate 22 is arranged in the heating tunnel 23 and extends out of the inlet and outlet of the heating tunnel 23. The inlet iron curtain 21 is arranged at the inlet of the heating tunnel 23, and the outlet iron curtain 24 is arranged at the outlet of the heating tunnel 23.

[0036] The working process of the present invention can be as follows: remove the product on the hot pressing tooling 9 on the discharge trolley 7 → fix the forming edge 15 to be processed (the flange edge of the final battery box product) on the four sides of the hot pressing tooling 9 → push the hot pressing tooling 9 onto the assembly trolley 8 and fix the four sides of the forming plate 14 on the hot pressing tooling 9 → push the hot pressing tooling 9 onto the feeding trolley 1 and wait for the furnace entry instruction → push the hot pressing tooling 9 into the tunnel furnace 2 and heat it for a certain time (such as 8 minutes) → the hot pressing tooling 9 arrives at the transfer station at the exit of the tunnel furnace 2 On the trolley 3 → push the hot pressing tooling 9 into the molding machine 4 → the opening cylinder 45 drives the hot pressing tooling 9 to descend, and opens the box quick clamp 92, and the molding plate 14 falls onto the molding edge 15 → the molding machine 4 descends and maintains pressure for a certain time (such as 90s) → the molding machine 4 rises → the hot pressing tooling 9 moves to the transfer trolley 5 → the transfer trolley 5 moves to the front end of the automatic conveyor line 6 → push the hot pressing tooling 9 onto the automatic conveyor line 6 → the hot pressing tooling 9 is transported to the discharge trolley 7 → the processed product is removed from the hot pressing tooling 9.

[0037] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the present invention should be included in the patent scope of this case.

Claims

1. A battery box processing and production system, characterized in that: It includes a hot pressing tooling, a feeding trolley, a tunnel furnace, a transfer trolley, a molding machine, a transfer trolley, an automatic conveyor line and a discharging trolley. The feeding trolley, the tunnel furnace, the transfer trolley and the molding machine are connected in a straight line. The hot pressing tooling is used to fix the materials and products to be processed for heating, transfer and molding. The feeding trolley is used to transport the materials fixed on the hot pressing tooling to the tunnel furnace. The tunnel furnace is used to heat the materials fixed on the hot pressing tooling. The transfer trolley is located between the tunnel furnace and the molding machine and is used to transfer the heated materials fixed on the hot pressing tooling to the molding machine. The workpiece material is conveyed to the molding machine, and the molding machine is used to mold the heated and softened material; the automatic conveyor line and the discharge trolley are arranged in a straight line and are parallel to the straight line where the feeding trolley, tunnel furnace, transfer trolley and molding machine are located. The transfer trolley is located between the molding machine and the feeding end of the automatic conveyor line, and is used to convey the products molded on the molding machine to the automatic conveyor line. The discharge trolley is docked with the discharge end of the automatic conveyor line. After the processing of the products fixed on the hot pressing tooling is completed, they are finally returned to the discharge trolley by the automatic conveyor line. The position of the discharge trolley is close to the feeding trolley.

2. A battery box processing and production system according to claim 1, characterized in that: The hot pressing tooling includes a positioning frame and a quick clamp. The positioning frame is a hollow frame structure. The quick clamp is arranged at the four edges of the positioning frame. After the material to be processed is positioned in the hollow positioning frame, it is fixed by the quick clamp.

3. A battery box processing and production system according to claim 2, characterized in that: The quick clamp includes a flange quick clamp and a box quick clamp, the positioning frame includes an upper frame and a lower frame connected to each other, and several box quick clamps are arranged at the edge positions of the four sides of the upper frame, for clamping the edge part of the forming plate to fix the forming plate, and the forming plate is used to form the box part of the battery box by hot pressing. The flange quick clamp is arranged at the edge position of the lower frame for fixing the forming edge, and the forming edge is used to be pressed with the four sides of the forming plate by hot pressing to form the flange edge of the battery box. The orthographic projections of the four sides of the forming plate fall on the four sides of the forming edge respectively, so that when the forming plate falls to the position of the lower frame, its four sides can be supported on the forming edge, and a box structure with a flange edge can be formed after hot pressing.

4. A battery box processing and production system according to claim 3, characterized in that: The molding machine includes an oil cylinder, a pressing plate, a fixing seat, a forming mold and an opening and clamping cylinder. The forming mold is arranged on the fixing seat, and when the hot pressing molding tool enters the molding machine, the forming mold and the hot pressing molding tool are relative to each other, and the box quick clamp on the hot pressing molding tool is relative to the opening and clamping cylinder. The box quick clamp opens and releases the forming plate under the action of the opening and clamping cylinder. The forming plate falls due to softening and gravity, and its four sides are supported on the forming edge when it falls to the position of the lower frame; the pressing plate and the forming mold are arranged opposite to each other, and the oil cylinder is connected to the pressing plate. The oil cylinder drives the pressing plate to move downward to press the forming plate and the forming edge on the forming mold, so that the edge part of the forming plate and the forming edge are hot-pressed into one, becoming the flange edge of the battery box, and the middle part of the forming plate is hot-pressed into the box part of the battery box.

5. The battery box processing and production system according to claim 2, characterized in that: The bottom of the positioning frame is provided with universal balls, and a plurality of the universal balls are distributed on the four corners of the bottom of the positioning frame.

6. The battery box processing and production system according to claim 1, characterized in that: It also includes an assembly trolley, which is used to provide an operating platform to fix the material to be processed on the hot pressing tooling. The assembly trolley is located between the discharge trolley and the feed trolley, and the feed trolley, the assembly trolley and the discharge trolley are located on the same straight line.

7. A battery box processing and production system according to claim 6, characterized in that: The feed trolley and the assembly trolley, and the assembly trolley and the discharge trolley are all connected by connecting plates. The feed trolley, the assembly trolley, the discharge trolley and the connecting plates are all provided with universal ball bearings to facilitate the rolling of the hot pressing tooling on them for transfer between different workstations.

8. The battery box processing and production system according to claim 6, characterized in that: Limiting strips are provided on the operating surfaces of the assembly trolley, feeding trolley and discharging trolley, which are used to limit the hot pressing forming tooling when it is transferred between the feeding trolley, the assembly trolley and the discharging trolley. The side of the feeding trolley facing the tunnel furnace and the side of the discharging trolley facing the automatic conveyor line are left empty for the hot pressing forming tooling to pass through.

9. The battery box processing and production system according to claim 1, characterized in that: The operating tables of the transfer trolley and the transfer trolley are both provided with universal balls, and the edges of the operating tables of the transfer trolley and the transfer trolley are both provided with limit strips for limiting the position of the hot pressing tooling when it moves thereon.

10. The battery box processing and production system according to claim 1, characterized in that: The tunnel furnace includes an inlet iron curtain, a conveying chain plate, a heating tunnel and an outlet iron curtain. The conveying chain plate is arranged in the heating tunnel and extends out of the inlet and outlet of the heating tunnel. The inlet iron curtain is arranged at the inlet of the heating tunnel, and the outlet iron curtain is arranged at the outlet of the heating tunnel.

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