Assembling tool

Abstract

The utility model provides an assembling tool. The assembling tool comprises a base table, the base table comprises a bearing face used for bearing the boundary beam in the first direction of the base table, the bearing face comprises a first area and a second area arranged on the outer side of the first area in a winding mode, and the second area is used for containing the boundary beam; the limiting mechanism is connected with the base table, at least part of the limiting mechanism is located in the second area, and the limiting mechanism is used for fixing the boundary beam; the pre-deformation mechanism comprises a connecting part and an abutting part which are connected with each other, the connecting part is connected with the base table and arranged in the first area, and the abutting part is arranged in a telescopic mode relative to the connecting part so that the abutting part can stretch into the second area and abut against the edge beam to cause pre-deformation of the edge beam; at least part of deformation generated in the welding process of the box body is absorbed through pre-deformation of the edge beams, so that the deformation problem of the rolling box body is solved, and the reliability of the box body is improved.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to an assembly tool. Background Art

[0002] Battery monomers are widely used in electronic devices, such as mobile phones, laptop computers, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes and electric tools, etc.

[0003] In order to reduce the problem of battery cells being easily damaged by external forces, battery cells usually need to be contained in a battery box. In the related art, the processing technology of the box includes a roll-pressed box forming process. The roll-pressed box has the advantages of light weight and low processing cost, but at the same time, the roll-pressed box also has the problem of easy deformation, which urgently needs to be improved. Utility Model Content

[0004] In view of the above problems, the present application provides an assembly tool that can improve the deformation problem of the rolled box body and enhance the reliability of the box body.

[0005] The present application provides an assembly tool for assembling side beams of a battery box, the assembly tool comprising: a base, comprising a bearing surface for bearing the side beams in a first direction thereof, the bearing surface comprising a first area, and a second area arranged around the outside of the first area, the second area being used to place the side beams; a limiting mechanism connected to the base, at least part of the limiting mechanism being located in the second area, the limiting mechanism being used to fix the side beams; a pre-deformation mechanism, comprising a connecting portion and a pressing portion connected to each other, the connecting portion being connected to the base and arranged in the first area, the pressing portion being retractable relative to the connecting portion so that the pressing portion can extend into the second area and press the side beams.

[0006] In the scheme of the embodiment of the present application, the assembly tool includes a base, a limiting mechanism and a pre-deformation mechanism, the base includes a bearing surface for bearing the side beam in its first direction, the bearing surface includes a first area and a second area arranged around the outside of the first area, the limiting mechanism is connected to the base, at least part of the limiting mechanism is located in the second area to fix the side beam, the pre-deformation mechanism includes a connecting portion and a pressing portion that are connected to each other, the connecting portion is arranged in the first area, and the pressing portion is retractable relative to the connecting portion so that the pressing portion can extend into the second area to press the side beam to cause pre-deformation of the side beam, and the pre-deformation of the side beam is used to absorb at least part of the deformation generated during the box welding process, so as to improve the deformation problem of the rolled box and enhance the reliability of the box.

[0007] In some embodiments, the second area includes two first sub-segments and two second sub-segments, the two first sub-segments are arranged on both sides of the first area in the second direction, and the two second sub-segments are arranged on both sides of the first area in the third direction. The pressing portion is retractably arranged relative to the connecting portion along the second direction or the third direction so that the pressing portion can extend into the second area and press the side beam, and the first direction, the second direction and the third direction intersect with each other.

[0008] In the scheme of the embodiment of the present application, the second area includes two first sub-segments arranged on both sides of the first area in the second direction, and the pressing portion can penetrate into the first sub-segment along the second direction to press the side beam to cause pre-deformation of the side beam, or the second area includes two second sub-segments arranged on both sides of the first area in the third direction, and the pressing portion can penetrate into the second sub-segment along the third direction to press the side beam to cause pre-deformation of the side beam. By reasonably arranging the positions of the second area and the pre-deformation mechanism, the reliability of the assembly tooling is improved.

[0009] In some embodiments, the pre-deformation mechanism includes a first mechanism and a second mechanism, the pressing portion of the first mechanism is retractable relative to its connecting portion along a second direction, and the connecting portion is movably arranged relative to the base along a third direction, and the pressing portion of the second mechanism is retractable relative to its connecting portion along the third direction, and the connecting portion is movably arranged relative to the base along the second direction.

[0010] In the solution of the embodiment of the present application, the connecting portion is movably arranged relative to the base along the second direction or the third direction to facilitate adjustment of the force application position of the pre-deformation mechanism on the side beam, so that the assembly tooling can adapt to different models of side beams and improve the reliability of the assembly tooling.

[0011] In some embodiments, the pre-deformation mechanism also includes a first transmission part, the first transmission part is connected to the base, the connecting part is connected to the first transmission part, and is movably arranged along the extension direction of the first transmission part, wherein the first transmission part of the first mechanism extends along the second direction, and the first transmission part of the second mechanism extends along the third direction.

[0012] In the scheme of the embodiment of the present application, the pre-deformation mechanism also includes a first transmission part, which is connected to the base to improve the stability of the pre-deformation mechanism. The connecting part is connected to the first transmission part and is movably arranged along the extension direction of the first transmission part. The first transmission part provides a guiding function for the connecting part so that the pre-deformation mechanism can move stably relative to the base.

[0013] In some embodiments, the pre-deformation mechanism further includes a first groove disposed in the first area, the first transmission portion and part of the connecting portion are located in the first groove, and the pressing portion is located outside the first groove.

[0014] In the scheme of the embodiment of the present application, the pre-deformation mechanism also includes a first groove arranged in the first area, and the pressing part is located outside the first groove to reduce the risk of interference between the pressing part and the first groove. The first transmission part and part of the connecting part are located in the first groove, which helps to reduce the size of the tooling and can limit the connecting part by the wall of the first groove to reduce the risk of rotation of the connecting part relative to the first transmission part, so that the pre-deformation mechanism can move stably relative to the base.

[0015] In some embodiments, the limiting mechanism includes a second groove disposed on the bearing surface, the second groove continuously extends in the second area and is disposed around the first area, and the second groove is used to accommodate at least a portion of the side beam.

[0016] In the scheme of the embodiment of the present application, the limiting mechanism includes a second groove arranged on the bearing surface, the second groove extends continuously in the second area and is arranged around the first area, the second groove is used to accommodate at least part of the side beam, the second groove can be used to limit and fix the side beam so that the side beam can be stably placed on the bearing surface, and can also be used to position the side beam to facilitate the setting of the side beam on the bearing surface.

[0017] In some embodiments, the limiting mechanism includes a clamping portion, the clamping portion includes a second transmission portion and two clamping blocks, the second transmission portion extends in the first sub-segment along the second direction, and / or the second transmission portion extends in the second sub-segment along the third direction, the two clamping blocks are connected to the second transmission portion and are movably arranged along the extension direction of the second transmission portion so that the spacing between the two clamping blocks is adjustable.

[0018] In the scheme of the embodiment of the present application, the limiting mechanism includes a clamping part, the clamping part includes a second transmission part and two clamping blocks, the two clamping blocks are connected to the second transmission part and are movably arranged along the extension direction of the second transmission part, so that the spacing between the two clamping blocks is adjustable, so that the two clamping blocks can clamp the side beam to improve the connection stability between the side beam and the assembly tooling.

[0019] In some embodiments, the limiting mechanism further includes a third groove, the third groove is formed by recessing a portion of the second region, and the second transmission portion and a portion of the clamping portion are accommodated in the third groove.

[0020] In the scheme of the embodiment of the present application, the limiting mechanism also includes a third groove formed by a depression of part of the second area, and the second transmission part and part of the clamping part are accommodated in the third groove to reduce the risk of interference between the side beam arranged in the second area and the second transmission part, thereby improving the reliability of the assembly tooling.

[0021] In some embodiments, the limiting mechanism includes a second groove arranged on the bearing surface, the second groove extends continuously in the second area and is arranged around the first area, the second groove is used to accommodate at least part of the side beam, and the third groove is arranged on both sides of the second groove in its width direction at both ends of its extension direction, and the size of the third groove in the first direction is larger than the size of the second groove in the first direction.

[0022] In the solution of the embodiment of the present application, the size of the third groove in the first direction is larger than the size of the second groove in the first direction, which can reduce the risk of interference between the side beam placed in the second groove and the second transmission part, and improve the reliability of the assembly tooling.

[0023] In some embodiments, the base includes a base, a workbench and at least one lifting mechanism, the base and the workbench are arranged at both ends of the lifting mechanism in a first direction, the lifting mechanism is telescopically arranged in the first direction, and the bearing surface is arranged on the side of the workbench away from the base.

[0024] In the scheme of the embodiment of the present application, the base includes a base, a workbench and at least one lifting mechanism. The base and the workbench are arranged at both ends of the lifting mechanism in a first direction. The lifting mechanism is retractable in the first direction so that the position of the bearing surface in the first direction can be adjusted, so that the assembly tooling can adapt to a variety of different environments and improve the reliability of the assembly tooling.

[0025] In some embodiments, the base platform includes at least two lifting mechanisms, and the lifting mechanism further includes a support member, and the support member is connected to at least two adjacent lifting mechanisms.

[0026] In the solution of the embodiment of the present application, the base includes at least two lifting mechanisms, and the lifting mechanism also includes a support member, which is connected to at least two adjacent lifting mechanisms to improve the structural strength of the assembly tooling and improve the reliability of the assembly tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0028] Figure 1 is a structural schematic diagram of a vehicle provided by an embodiment of the present application;

[0029] Figure 2 is a schematic structural diagram of a battery device provided in one embodiment of the present application;

[0030] Figure 3 It is a structural schematic diagram of a battery module provided in one embodiment of the application;

[0031] Figure 4 It is a structural schematic diagram of an assembly tool provided in one embodiment of the present application;

[0032] Figure 5 It is a partial structural schematic diagram of an assembly tool provided in one embodiment of the present application;

[0033] Figure 6 It is a structural schematic diagram of a pre-deformation mechanism of an assembly tool provided in one embodiment of the present application;

[0034] Figure 7 It is a structural schematic diagram of a clamping portion of an assembly tool provided in one embodiment of the present application;

[0035] Figure 8 It is a partial structural schematic diagram of an assembly tool provided in one embodiment of the present application.

[0036] Description of reference numerals:

[0037] 1. Vehicle; 101. Motor; 102. Controller;

[0038] 2. Battery device; 201. Battery module; 202. Box; 2021. First box; 2022. Second box;

[0039] 3. Battery cells;

[0040] 4. Assemble tooling;

[0041] 5. base; 51. base; 52. workbench; 53. lifting mechanism; 54. support member; 55. bearing surface; 56. first area; 57. second area; 571. first sub-segment; 572. second sub-segment;

[0042] 6. Limiting mechanism; 61. Second groove; 62. Clamping part; 63. Third groove; 621. Second transmission part; 622. Clamping block; 623. Second driving part;

[0043] 7. Pre-deformation mechanism; 71. Connecting portion; 72. Pressing portion; 73. First mechanism; 74. Second mechanism; 75. First transmission portion; 76. First groove; 77. First driving portion;

[0044] 81. Positioning pin; 82. Fixed support foot;

[0045] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0046] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0047] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0048] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0049] In addition, the technical terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0050] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0053] The processing technology of the box body includes a roll-pressed box body forming process. The roll-pressed box body has the advantages of light weight and low processing cost, but at the same time, the roll-pressed box body also has the problem of easy deformation.

[0054] In the related art, during the welding process of the roll-formed box frame, due to the large number of welding locations and long weld lengths on the roll-formed box frame, heat accumulation during the welding process can easily cause the side beams to deform toward the inside of the box.

[0055] Based on the above problems, an embodiment of the present application provides an assembly tool, which includes a base, a limiting mechanism and a pre-deformation mechanism. The base includes a bearing surface in a first direction thereof for bearing side beams, the bearing surface includes a first area and a second area arranged around the outside of the first area, the limiting mechanism is connected to the base, at least part of the limiting mechanism is located in the second area to fix the side beams, the pre-deformation mechanism includes a connecting portion and a pressing portion that are connected to each other, the connecting portion is arranged in the first area, and the pressing portion is retractable relative to the connecting portion so that the pressing portion can extend into the second area to press the side beams to cause pre-deformation of the side beams, and the pre-deformation of the side beams can absorb at least part of the deformation generated during the box welding process to improve the deformation problem of the rolled box and enhance the reliability of the box.

[0056] The technical solutions described in the embodiments of the present application are applicable to battery devices and electrical devices using the battery devices.

[0057] The electrical device may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, and the like. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, and the like; the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, and the like; the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like; the electric tool may include a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and an electric tool for railways, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer, and the like. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0058] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0059] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel metal hydride battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application. The battery cell can be cylindrical, flat, rectangular or other shapes, which is not limited in the embodiments of the present application.

[0060] The battery device mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery device mentioned in the present application may include a battery module or a battery pack. The battery pack generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0061] A battery cell includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separator. A battery cell mainly works by the movement of metal ions between the positive electrode sheet and the negative electrode sheet. The positive electrode sheet includes a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector. The positive current collector includes a positive current collector and a positive electrode ear connected to the positive current collector. The positive current collector is coated with a positive active material layer, and the positive electrode ear is not coated with a positive active material layer. Taking a lithium-ion battery as an example, the material of the positive current collector can be aluminum, and the positive active material layer includes a positive active material. The positive active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc. The negative electrode sheet includes a negative current collector and a negative active material layer, and the negative active material layer is coated on the surface of the negative current collector; the negative current collector includes a negative current collector and a negative electrode tab connected to the negative current collector, the negative current collector is coated with the negative active material layer, and the negative electrode tab is not coated with the negative active material layer. The material of the negative current collector can be copper, and the negative active material layer includes a negative active material, and the negative active material can be carbon or silicon, etc. The material of the separator can be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), etc.

[0062] It should be understood that the technical solutions described in the embodiments of the present application are not limited to the battery devices and electrical equipment described above, but can also be applied to all battery devices including a box and electrical equipment using the battery devices. However, for the sake of simplicity, the following embodiments are described using electric vehicles as examples.

[0063] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1 provided for some embodiments of the present application. Vehicle 1 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 2 is provided inside the vehicle 1, and the battery device 2 may be provided at the bottom, head or tail of the vehicle 1. The battery device 2 may be used to power the vehicle 1, for example, the battery device 2 may be used as an operating power source for the vehicle 1. The vehicle 1 may also include a controller 102 and a motor 101, and the controller 102 is used to control the battery to power the motor 101, for example, for the starting, navigation and working power requirements of the vehicle 1 during driving.

[0064] In some embodiments of the present application, the battery device 2 can not only serve as an operating power source for the vehicle 1 , but also serve as a driving power source for the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .

[0065] Figure 2 A schematic structural diagram of a battery device according to an embodiment of the present application is shown.

[0066] The battery device 2 mentioned in the embodiment of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include a plurality of battery cells 3, and the plurality of battery cells 3 are connected in series, in parallel or in mixed connection through a busbar.

[0067] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells 3 .

[0068] As an example, the battery cell assembly may be a battery module 201, and the battery module 201 is formed by arranging and fixing a plurality of battery cells 3 to form an independent module. As an example, the battery module 201 may be formed by bundling a plurality of battery cells 3 by a cable tie.

[0069] In some embodiments, the battery device may be a battery pack, which includes a case 202 and one or more battery cell assemblies, wherein the battery cell assemblies are housed in the case 202 .

[0070] As an example, the battery cell assembly may be a battery module 201 , and the battery cell assembly may be accommodated in the box by fixing the battery module 201 in the box.

[0071] As an example, the battery cell assembly may also be accommodated in the box body 202 by directly fixing the plurality of battery cells 3 to the box body 202 .

[0072] As an example, the box 202 may include a first box 2021 and a second box 2022. The first box 2021 and the second box 2022 are buckled together to form a closed space inside the box 202 to accommodate the battery monomer assembly. The closed space here means covering or closing, which can be sealed or unsealed. The first box 2021 can be a top cover or a bottom plate.

[0073] As an example, the box body 202 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that a closed space is formed inside the box body 202 to accommodate the battery cell assembly.

[0074] In some embodiments, the box 202 can be used as a part of the chassis structure of the vehicle. For example, a part of the box 202 can become at least a part of the floor of the vehicle, or a part of the box 202 can become at least a part of the cross beam and the longitudinal beam of the vehicle.

[0075] Figure 3 A schematic structural diagram of a battery module 201 according to an embodiment of the present application is shown.

[0076] In some embodiments, Figure 2 and Figure 3 As shown, there are multiple battery cells 3, and the multiple battery cells 3 are first connected in series, parallel or mixed to form a battery module 201. The multiple battery modules 201 are then connected in series, parallel or mixed to form a whole, and are accommodated in the box 202.

[0077] The multiple battery cells 3 in the battery module 201 can be electrically connected through a busbar component to achieve parallel connection, series connection or mixed connection of the multiple battery cells 3 in the battery module 201 .

[0078] See also Figure 4 , Figure 4 It is a structural schematic diagram of an assembly tool provided in one embodiment of the present application.

[0079] like Figure 4 As shown, the present application provides an assembly tool 4 for assembling the side beams of a battery box 202. The assembly tool 4 includes a base 5, a limiting mechanism 6 and a pre-deformation mechanism 7. The base 5 includes a bearing surface 55 for bearing the side beams in its first direction X. The bearing surface 55 includes a first area 56 and a second area 57 arranged around the outside of the first area 56, and the second area 57 is used to place the side beams; the limiting mechanism 6 is connected to the base 5, at least part of the limiting mechanism 6 is located in the second area 57, and the limiting mechanism 6 is used to fix the side beams; the pre-deformation mechanism 7 includes a connecting portion 71 and a pressing portion 72 that are connected to each other, the connecting portion 71 is connected to the base 5, and is arranged in the first area 56, and the pressing portion 72 is retractably arranged relative to the connecting portion 71 so that the pressing portion 72 can extend into the second area 57 and press the side beam.

[0080] In the scheme of the embodiment of the present application, the assembly tool 4 includes a base 5, a limiting mechanism 6 and a pre-deformation mechanism 7. The base 5 includes a bearing surface 55 for bearing the side beam in its first direction X, and the bearing surface 55 includes a first area 56 and a second area 57 arranged around the outside of the first area 56. The limiting mechanism 6 is connected to the base 5, and at least part of the limiting mechanism 6 is located in the second area 57 to fix the side beam. The pre-deformation mechanism 7 includes a connecting portion 71 and a pressing portion 72 that are connected to each other. The connecting portion 71 is arranged in the first area 56, and the pressing portion 72 is retractably arranged relative to the connecting portion 71, so that the pressing portion 72 can extend into the second area 57 to press the side beam to cause pre-deformation of the side beam. The pre-deformation of the side beam is used to absorb at least part of the deformation generated during the welding process of the box body 202 to improve the deformation problem of the rolled box body 202 and enhance the reliability of the box body 202.

[0081] In the related art, the roll-formed box body 202 is first formed by rolling a steel strip to form four side beams, and then the four side frames are limited to the assembly tool 4 for welding to form the box body 202.

[0082] The bearing surface 55 of the base 5 includes a first area 56 and a second area 57 arranged around the first area 56. When the side beams are arranged on the assembly tool 4, the side beams are located in the second area 57. The shapes of the first area 56 and the second area 57 can be determined according to the actual size of the side beams. Usually, the box 202 includes four side beams, and the four side beams are connected to form a rectangular frame. Exemplarily, the first area 56 and the second area 57 are both rectangular to better match the side beams.

[0083] Exemplarily, the first direction X is a height direction of the base 5 .

[0084] One end of the limiting mechanism 6 is connected to the base 5, and the other end thereof extends into the second area 57 and can be connected to the side beam, so that the side beam and the base 5 are stably connected, so as to reduce the movement of the side beam relative to the base 5 during the subsequent operation of the pre-deformation mechanism 7 and the welding of the side beam, thereby affecting the pre-deformation effect and the welding effect. The connection method between the limiting mechanism 6 and the side beam can be clamping, clamping, or bolting. The connection method between the limiting mechanism 6 and the base 5 can be welding, threaded connection, clamping, riveting, or integrated molding.

[0085] Exemplarily, the limiting mechanism 6 is a buckle, one end of which is fixed to the base 5 , and the other end of which is clamped to the side beam in the second area 57 .

[0086] Exemplarily, a plurality of limiting mechanisms 6 are evenly spaced to ensure that the side beam and the base 5 maintain a stable connection.

[0087] The pre-deformation mechanism 7 includes a connecting portion 71 and a pressing portion 72. The pre-deformation mechanism 7 is connected to the base 5 via the connecting portion 71. The pressing portion 72 is telescopically arranged relative to the connecting portion 71 so that the pressing portion 72 can extend into the second area 57 to press the side beam to pre-deform the side beam.

[0088] In the related art, during the welding process of the side beam, the side beam is bent and deformed due to severe heat accumulation, and because other structures such as mounting beams are usually arranged on the outer surface of the side beam, the deformation usually occurs on the inner surface of the side beam, that is, the side surface of the side beam facing the first area 56 is usually bent toward the first area 56. Therefore, in the embodiment of the present application, the pressing portion 72 can extend from the first area 56 into the second area 57 to press the side beam, so as to apply pressure from the first area 56 to the second area 57 to the side beam, so as to cause the side beam to generate a pre-deformation away from the first area 56, and absorb at least part of the bending deformation toward the first area 56 during the welding process of the side beam through the pre-deformation, so as to improve the deformation problem of the roll-pressed box body 202.

[0089] It should be clear that the pre-deformation amount of the side beam caused by the pressing portion 72 should be adjusted according to the actual situation of the side beam.

[0090] Optionally, the connecting portion 71 includes a driving structure such as a motor, a cylinder or a hydraulic cylinder, so that the connecting portion 71 can drive the pressing portion 72 to perform reciprocating telescopic motion.

[0091] Optionally, the pressing portion 72 and the connecting portion 71 are detachably connected to facilitate maintenance and replacement of the pre-deformation mechanism 7 , and to match different pressing portions 72 to side beams of different sizes and shapes.

[0092] Optionally, the material, shape and size of the pressing portion 72 can be set according to the specific conditions of the side beam.

[0093] See also Figure 5 , Figure 5 It is a partial structural schematic diagram of an assembly tool provided in one embodiment of the present application.

[0094] In some embodiments, Figure 4 and Figure 5 As shown, the second area 57 includes two first sub-segments 571 and two second sub-segments 572. The two first sub-segments 571 are arranged on both sides of the first area 56 in the second direction Y, and the two second sub-segments 572 are arranged on both sides of the first area 56 in the third direction Z. The pressing portion 72 is retractably arranged relative to the connecting portion 71 along the second direction Y or the third direction Z so that the pressing portion 72 can extend into the second area 57 and press the side beam. The first direction X, the second direction Y and the third direction Z intersect with each other.

[0095] In these embodiments, the second region 57 includes two first sub-segments 571 which are arranged on both sides of the first region 56 in the second direction Y, and the pressing portion 72 can penetrate into the first sub-segment 571 along the second direction Y to press the side beam to cause pre-deformation of the side beam, or the second region 57 includes two second sub-segments 572 which are arranged on both sides of the first region 56 in the third direction Z, and the pressing portion 72 can penetrate into the second sub-segment 572 along the third direction Z to press the side beam to cause pre-deformation of the side beam. By reasonably arranging the positions of the second region 57 and the pre-deformation mechanism 7, the reliability of the assembly tool 4 is improved.

[0096] The two first sub-segments 571 and the two second sub-segments 572 are sequentially connected to form a quadrilateral frame to accommodate the side beams of the box body 202 .

[0097] At least one pre-deformation mechanism 7 is arranged on the base 5, and the pressing portion 72 of the pre-deformation mechanism 7 can extend along the second direction Y to the first sub-segment 571 to pre-deform the side beam located in the first sub-segment 571, and / or at least one pre-deformation mechanism 7 is arranged on the base 5, and the pressing portion 72 of the pre-deformation mechanism 7 can extend along the third direction Z to the second sub-segment 572 to pre-deform the side beam located in the second sub-segment 572.

[0098] Optionally, at least two pre-deformation mechanisms 7 are provided on the base 5, and the pressing portions 72 of at least two pre-deformation mechanisms 7 can extend along the second direction Y to the two first sub-segments 571 respectively, and / or at least two pre-deformation mechanisms 7 are provided on the base 5, and the pressing portions 72 of at least two pre-deformation mechanisms 7 can extend along the third direction Z to the two second sub-segments 572 respectively.

[0099] Optionally, at least two pre-deformation mechanisms 7 are provided on the base 5, and the pressing portions 72 of at least two pre-deformation mechanisms 7 extend along the second direction Y to the same first sub-segment 571, and / or at least two pre-deformation mechanisms 7 are provided on the base 5, and the pressing portions 72 of at least two pre-deformation mechanisms 7 extend along the third direction Z to the same second sub-segment 572.

[0100] Optionally, since in the related art, the central area of ​​the side beam is usually deformed significantly when it is welded, in the embodiment of the present application, the connecting portion 71 is fixed relative to the base 5, and the pre-deformation mechanism 7 can be arranged in the middle position of the first area 56 in its second direction Y or third direction Z, so that the pressing portion 72 acts on the middle area of ​​the side beam.

[0101] In some embodiments, Figure 4 and Figure 5As shown, the pre-deformation mechanism 7 includes a first mechanism 73 and a second mechanism 74. The pressing portion 72 of the first mechanism 73 is telescopically arranged relative to its connecting portion 71 along the second direction Y, and the connecting portion 71 is movably arranged relative to the base 5 along the third direction Z. The pressing portion 72 of the second mechanism 74 is telescopically arranged relative to its connecting portion 71 along the third direction Z, and the connecting portion 71 is movably arranged relative to the base 5 along the second direction Y.

[0102] In these embodiments, the connecting portion 71 is movably arranged relative to the base 5 along the second direction Y or the third direction Z to facilitate adjustment of the force application position of the pre-deformation mechanism 7 on the side beam, so that the assembly tool 4 can adapt to different types of side beams and improve the reliability of the assembly tool 4.

[0103] The pressing portion 72 of the first mechanism 73 is telescopically arranged along the second direction Y so that the pressing portion 72 can extend to the first sub-segment 571 ; the pressing portion 72 of the second mechanism 74 is telescopically arranged along the third direction Z so that the pressing portion 72 can extend to the second sub-segment 572 .

[0104] Exemplarily, the pre-deformation mechanism 7 includes two first mechanisms 73 and two second mechanisms 74. The pressing portions 72 of the two first mechanisms 73 can extend along the second direction Y to the two first sub-segments 571 respectively, and the pressing portions 72 of the two second mechanisms 74 can extend along the third direction Z to the two second sub-segments 572 respectively.

[0105] Optionally, a lead screw structure, a slide rail structure, a gear set or a connecting rod structure is provided between the connecting part 71 and the base 5, so that the connecting part 71 can move relative to the base 5 along the second direction Y or the third direction Z to adjust the force position of the pressing part 72 on the side beam, so that the pre-deformation mechanism 7 can adapt to more types of side beams.

[0106] See also Figure 6 , Figure 6 It is a structural schematic diagram of a pre-deformation mechanism of an assembly tool provided in one embodiment of the present application.

[0107] In some embodiments, Figures 4 to 6 As shown, the pre-deformation mechanism 7 also includes a first transmission part 75, the first transmission part 75 is connected to the base 5, the connecting part 71 is connected to the first transmission part 75, and is movably arranged along the extension direction of the first transmission part 75, wherein the first transmission part 75 of the first mechanism 73 extends along the second direction Y, and the first transmission part 75 of the second mechanism 74 extends along the third direction Z.

[0108] In these embodiments, the pre-deformation mechanism 7 also includes a first transmission part 75, which is connected to the base 5 to improve the stability of the pre-deformation mechanism 7. The connecting part 71 is connected to the first transmission part 75 and is movably arranged along the extension direction of the first transmission part 75. The first transmission part 75 provides a guiding function for the connecting part 71 so that the pre-deformation mechanism 7 can move stably relative to the base 5.

[0109] Optionally, the first transmission part 75 can be a lead screw extending along the second direction Y or along the third direction Z, and the connecting part 71 and the first transmission part 75 are threadedly connected; or the first transmission part 75 can be a magnetic part extending along the second direction Y or along the third direction Z, and the connecting part 71 and the first transmission part 75 are magnetically connected; or the first transmission part 75 can be a slide rail extending along the second direction Y or along the third direction Z, and the connecting part 71 and the first transmission part 75 cooperate in the form of a slide rail slider.

[0110] Optionally, the pre-deformation mechanism 7 also includes a first driving part 77, which is used to drive the connecting part 71 and the first transmission part 75 to move relative to each other. Exemplarily, the first driving part 77 is a motor and the first transmission part 75 is a screw. The motor can drive the screw to rotate so that the connecting part 71 moves relative to the first transmission part 75.

[0111] In some embodiments, Figures 4 to 6 As shown, the pre-deformation mechanism 7 further includes a first groove 76 disposed in the first area 56 , the first transmission portion 75 and a portion of the connecting portion 71 are located in the first groove 76 , and the pressing portion 72 is located outside the first groove 76 .

[0112] In these embodiments, the pre-deformation mechanism 7 also includes a first groove 76 arranged in the first area 56, and the pressing portion 72 is located outside the first groove 76 to reduce the risk of interference between the pressing portion 72 and the first groove 76. The first transmission portion 75 and part of the connecting portion 71 are located in the first groove 76, which helps to reduce the size of the tooling and can limit the connecting portion 71 by the wall of the first groove 76 to reduce the risk of rotation of the connecting portion 71 relative to the first transmission portion 75, so that the pre-deformation mechanism 7 can move stably relative to the base 5.

[0113] Specifically, the first groove 76 of the first transmission part 75 that accommodates the first mechanism 73 extends along the second direction Y, and the connecting part 71 moves along the second direction Y in the first groove 76; the first groove 76 of the first transmission part 75 that accommodates the second mechanism 74 extends along the third direction Z, and the connecting part 71 moves along the third direction Z in the first groove 76, so that the first groove 76 and the first transmission part 75 adapt to each other.

[0114] Optionally, the connecting portion 71 includes a first end and a second end arranged relatively to each other along the first direction X, the first end is connected to the first transmission portion 75 and accommodated in the first groove 76, the second end extends out of the groove, and the pressing portion 72 is connected to the second end to reduce the risk of interference between the pressing portion 72 and the first groove 76.

[0115] Optionally, the first transmission part 75 is a screw, the connecting part 71 and the screw are threadedly connected, and the side wall of the first groove 76 is in contact with the connecting part 71, so that the connecting part 71 can be stopped by the side wall of the first groove 76 when rotating relative to the screw.

[0116] In some embodiments, Figure 4 As shown, the limiting mechanism 6 includes a second groove 61 arranged on the bearing surface 55 , the second groove 61 extends continuously in the second area 57 and is arranged around the first area 56 , and the second groove 61 is used to accommodate at least part of the side beam.

[0117] In these embodiments, the limiting mechanism 6 includes a second groove 61 arranged on the bearing surface 55, the second groove 61 extends continuously in the second area 57 and is arranged around the first area 56, the second groove 61 is used to accommodate at least part of the side beam, the second groove 61 can be used to limit and fix the side beam so that the side beam can be stably placed on the bearing surface 55, and can also be used to position the side beam to facilitate the side beam to be placed on the bearing surface 55.

[0118] The second groove 61 continuously extends between the two first sub-segments 571 and the two second sub-segments 572 to form a quadrilateral frame, and the side beam can be accommodated in the second groove 61. Exemplarily, the second groove 61 is arranged around the first area 56, and the second groove 61 is rectangular.

[0119] Optionally, the side beam is clamped in the second groove 61, and the second groove 61 plays a role in fixing the side beam.

[0120] Optionally, the width of the second groove 61 is greater than the width of the side beam, so as to facilitate accommodating the side beam in the second groove 61, and the second groove 61 plays a role in positioning the side beam.

[0121] Optionally, a plurality of positioning pins 81 are spaced apart around the edge of the second area 57 away from the first area 56 , and the positioning pins 81 are used to limit the portion of the side beam extending out of the second area 57 . Exemplarily, the mounting beam on the outer side of the side beam abuts against the positioning pins 81 .

[0122] See also Figure 7 , Figure 7 It is a structural schematic diagram of a clamping portion of an assembly tool provided in one embodiment of the present application.

[0123] In some embodiments, Figure 4 and Figure 7As shown, the limiting mechanism 6 includes a clamping portion 62, and the clamping portion 62 includes a second transmission portion 621 and two clamping blocks 622. The second transmission portion 621 extends in the first sub-segment 571 along the second direction Y, and / or the second transmission portion 621 extends in the second sub-segment 572 along the third direction Z. The two clamping blocks 622 are connected to the second transmission portion 621 and are movably arranged along the extension direction of the second transmission portion 621 so that the spacing between the two clamping blocks 622 is adjustable.

[0124] In these embodiments, the limiting mechanism 6 includes a clamping portion 62, the clamping portion 62 includes a second transmission portion 621 and two clamping blocks 622, the two clamping blocks 622 are connected to the second transmission portion 621 and are movably arranged along the extension direction of the second transmission portion 621, so that the spacing between the two clamping blocks 622 is adjustable, so that the two clamping blocks 622 can clamp the side beam to improve the connection stability between the side beam and the assembly tooling 4.

[0125] The clamping portion 62 includes a second transmission portion 621 and two clamping blocks 622. The two clamping blocks 622 are movably arranged with the second transmission portion 621 in its extension direction. The second transmission portion 621 extends in the first sub-segment 571 along the second direction Y, or the second transmission portion 621 extends in the second sub-segment 572 along the third direction Z. The side beam is arranged between the two clamping blocks 622 so that the two clamping blocks 622 can clamp and fix the side beam.

[0126] Exemplarily, the second transmission part 621 is a bidirectional screw, so that the two clamping blocks 622 can be moved closer to or farther away from each other, so that the clamping blocks 622 fix the side beam at the middle position of the second transmission part 621 .

[0127] Optionally, the clamping portion 62 further includes a second driving portion 623, the second transmission portion 621 is connected to a second driving member, the second driving member may be a motor, the second transmission portion 621 is a lead screw, and the second driving member is used to drive the lead screw to rotate so as to move the clamping block 622. Exemplarily, at least two second transmission portions 621 are provided on the base 5, each second transmission portion 621 is connected to each second driving member in a one-to-one correspondence, and each second driving member rotates synchronously.

[0128] Optionally, in the related technology, the four side beams include two first side beams relatively arranged along the second direction Y, and two second side beams relatively arranged along the third direction Z, the second side beam is clamped in the middle by the two first side beams, the first side beam is arranged in the first sub-segment 571, and the second side beam is arranged in the second sub-segment 572, then the clamping portion 62 can be provided only in the first sub-segment 571, the first side beam is clamped by the clamping portion 62, and the second side beam is fixed by the first side beam, or the first side beam is clamped in the middle by the two second side beams, the first side beam is arranged in the first sub-segment 571, and the second side beam is arranged in the second sub-segment 572, then the clamping portion 62 can be provided only in the second sub-segment 572, the second side beam is clamped by the clamping portion 62, and the first side beam is fixed by the second side beam.

[0129] Optionally, the limiting mechanism 6 includes a plurality of clamping portions 62 , and each clamping portion 62 is respectively arranged at the first sub-segment 571 and the second sub-segment 572 , so as to keep the side beam and the base 5 stably connected.

[0130] Optionally, when the clamping portion 62 is only provided on the first sub-segment 571, in order to facilitate the welding of the adjacent first side beam and the second side beam, the clamping portions 62 may be provided at both ends of the first sub-segment 571 so as to keep the welding position stable and improve the welding quality; or when the clamping portion 62 is only provided on the second sub-segment 572, in order to facilitate the welding of the adjacent first side beam and the second side beam, the clamping portions 62 may be provided at both ends of the second sub-segment 572 so as to keep the welding position stable and improve the welding quality.

[0131] In some embodiments, Figure 4 and Figure 7 As shown, the limiting mechanism 6 further includes a third groove 63 . The third groove 63 is formed by a depression of a portion of the second region 57 . The second transmission portion 621 and a portion of the clamping portion 62 are accommodated in the third groove 63 .

[0132] In these embodiments, the limiting mechanism 6 also includes a third groove 63 formed by a depression of a portion of the second area 57, and the second transmission portion 621 and a portion of the clamping portion 62 are accommodated in the third groove 63 to reduce the risk of interference between the side beam arranged in the second area 57 and the second transmission portion 621, thereby improving the reliability of the assembly tooling 4.

[0133] The clamping portion 62 includes a first end and a second end arranged opposite to each other in the first direction X, the first end is connected to the second transmission portion 621, the first end and the second transmission portion 621 are accommodated in the third groove 63, and the second end extends out of the third groove 63 and is used to clamp the side beam.

[0134] Exemplarily, the second transmission part 621 is a bidirectional lead screw, and a third groove 63 is provided on the bearing surface 55 so that the bidirectional lead screw can be accommodated in the third groove 63 , thereby reducing the problem of interference between the side beam and the lead screw when the side beam is provided in the second area 57 .

[0135] In some embodiments, Figure 4 and Figure 7 As shown, the limiting mechanism 6 includes a second groove 61 arranged on the bearing surface 55, the second groove 61 extends continuously in the second area 57 and is arranged around the first area 56, the second groove 61 is used to accommodate at least part of the side beam, and the third groove 63 is arranged on both sides of the second groove 61 in the width direction at both ends of its extension direction, and the size of the third groove 63 in the first direction X is larger than the size of the second groove 61 in the first direction X.

[0136] In these embodiments, the dimension of the third groove 63 in the first direction X is greater than that of the second groove 61 in the first direction X, which can reduce the risk of interference between the side beam disposed in the second groove 61 and the second transmission part 621 and improve the reliability of the assembly tool 4.

[0137] The third groove 63 is disposed at both ends of its extension direction on both sides of the second groove 61 in its width direction, so that when the side beam is disposed in the second groove 61 , the clamping block 622 in the third groove 63 can clamp the side beam located in the second groove 61 .

[0138] Optionally, the second transmission portion 621 is accommodated in the third groove 63 , and the second transmission portion 621 will not invade into the second groove 61 or interfere with the side beam located in the second groove 61 .

[0139] See also Figure 8 , Figure 8 It is a partial structural schematic diagram of an assembly tool provided in one embodiment of the present application.

[0140] In some embodiments, Figure 4 and Figure 8 As shown, the base 5 includes a base 51, a workbench 52 and at least one lifting mechanism 53. The base 51 and the workbench 52 are arranged at both ends of the lifting mechanism 53 in the first direction X. The lifting mechanism 53 is telescopically arranged in the first direction X, and the bearing surface 55 is arranged on the side of the workbench 52 away from the base 51.

[0141] In these embodiments, the base 5 includes a base 51, a workbench 52 and at least one lifting mechanism 53. The base 51 and the workbench 52 are arranged at both ends of the lifting mechanism 53 in the first direction X. The lifting mechanism 53 is retractably arranged in the first direction X so that the position of the bearing surface 55 in the first direction X can be adjusted, so that the assembly tool 4 can adapt to a variety of different environments and improve the reliability of the assembly tool 4.

[0142] A side of the workbench 52 facing away from the base 51 in the first direction X is a bearing surface 55 , and a side of the workbench 52 facing the base 51 in the first direction X is connected to the lifting mechanism 53 .

[0143] Exemplarily, the lifting mechanism 53 includes a motor, a hydraulic cylinder, a pneumatic cylinder or other devices, so that the size of the lifting mechanism 53 in the first direction X can be adjusted.

[0144] Optionally, a plurality of fixed legs 82 are provided on the edge of the base 51 , and the base 51 is connected to the installation position via the fixed legs 82 .

[0145] Optionally, at least two lifting mechanisms 53 may be provided between the base 51 and the workbench 52 to reduce the risk of the workbench 52 twisting relative to the lifting mechanisms 53 .

[0146] In some embodiments, Figure 4 and Figure 8 As shown, the base 5 includes at least two lifting mechanisms 53 , and the lifting mechanisms 53 also include a support member 54 , and the support member 54 is connected to at least two adjacent lifting mechanisms 53 .

[0147] In these embodiments, the base 5 includes at least two lifting mechanisms 53 , and the lifting mechanisms 53 also include support members 54 . The support members 54 are connected to at least two adjacent lifting mechanisms 53 to enhance the structural strength of the assembly tool 4 and enhance the reliability of the assembly tool 4 .

[0148] Optionally, a plurality of support members 54 are disposed between two adjacent lifting mechanisms 53 to enhance the stability of the base 5 .

[0149] In some embodiments, Figures 1 to 8As shown, the assembly tool 4 includes a base 5, a limiting mechanism 6 and a pre-deformation mechanism 7. The base 5 includes a base 51, a workbench 52 and at least one lifting mechanism 53. The base 51 and the workbench 52 are arranged at both ends of the lifting mechanism 53 in the first direction X. The lifting mechanism 53 is retractable in the first direction X. The bearing surface 55 is arranged on the side of the workbench 52 away from the base 51. The bearing surface 55 includes a first area 56 and a second area 57 arranged around the outside of the first area 56. The second area 57 includes two first sub-segments 571 and two second sub-segments 572. The two first sub-segments 571 are arranged on both sides of the first area 56 in the second direction Y, and the two second sub-segments 572 are arranged on both sides of the first area 56 in the third direction Z. The limiting mechanism 6 is connected to the base 5. The limiting mechanism 6 includes a second groove 61 and a clamping portion 62. The second groove 61 is in the second area 57. The second groove 61 is used to accommodate at least part of the side beam, and the clamping part 62 includes a second transmission part 621 and two clamping blocks 622. The second transmission part 621 extends in the first sub-segment 571 along the second direction Y, and / or the second transmission part 621 extends in the second sub-segment 572 along the third direction Z. The two clamping blocks 622 are connected to the second transmission part 621 and are movably arranged along the extension direction of the second transmission part 621, so that the spacing between the two clamping blocks 622 is adjustable. The limiting mechanism 6 also includes a third groove 63, which is formed by a depression of part of the second area 57. The second transmission part 621 and part of the clamping part 62 are accommodated in the third groove 63. The third groove 63 is arranged at both ends of its extension direction on both sides of the second groove 61 in its width direction. The size of the third groove 63 in the first direction X is larger than the size of the second groove 61 in the first direction X.The pre-deformation mechanism 7 includes a connecting portion 71 and a pressing portion 72 that are connected to each other. The connecting portion 71 is connected to the base 5 and is arranged in the first area 56. The pressing portion 72 is retractable relative to the connecting portion 71 along the second direction Y or the third direction Z, so that the pressing portion 72 can extend into the second area 57 and press the edge beam. The pre-deformation mechanism 7 includes a first mechanism 73 and a second mechanism 74. The pressing portion 72 of the first mechanism 73 is retractable relative to its connecting portion 71 along the second direction Y. The connecting portion 71 is movable relative to the base 5 along the third direction Z. The pressing portion 72 of the second mechanism 74 is retractable relative to its connecting portion 71 along the third direction Z. The connection part 71 is movable relative to the base 5 along the second direction Y, the pre-deformation mechanism 7 further comprises a first transmission part 75, the first transmission part 75 is connected to the base 5, the connection part 71 is connected to the first transmission part 75, and is movable along the extension direction of the first transmission part 75, wherein the first transmission part 75 of the first mechanism 73 extends along the second direction Y, and the first transmission part 75 of the second mechanism 74 extends along the third direction Z, the pre-deformation mechanism 7 further comprises a first groove 76 arranged in the first area 56, the first transmission part 75 and part of the connection part 71 are located in the first groove 76, and the pressing part 72 is located outside the first groove 76. ;

[0150] In these embodiments, the assembly tool 4 includes a base 5, a limiting mechanism 6 and a pre-deformation mechanism 7. The base 5 includes a bearing surface 55 for bearing the side beam in its first direction X. The bearing surface 55 includes a first area 56 and a second area 57 arranged around the outside of the first area 56. The limiting mechanism 6 is connected to the base 5, and at least part of the limiting mechanism 6 is located in the second area 57 to fix the side beam. The pre-deformation mechanism 7 includes a connecting portion 71 and a pressing portion 72 that are connected to each other. The connecting portion 71 is arranged in the first area 56, and the pressing portion 72 is retractably arranged relative to the connecting portion 71 so that the pressing portion 72 can extend into the second area 57 to press the side beam to cause pre-deformation of the side beam. The pre-deformation of the side beam can absorb at least part of the deformation generated during the welding process of the box body 202 to improve the deformation problem of the rolled box body 202 and enhance the reliability of the box body 202.

[0151] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An assembly tool for assembling the side beams of a battery box, characterized in that: The assembly tool comprises: A base, comprising a bearing surface for bearing the side beam in a first direction thereof, the bearing surface comprising a first area and a second area arranged around the outside of the first area, the second area being used for arranging the side beam; A limiting mechanism connected to the base, at least a portion of the limiting mechanism is located in the second area, and the limiting mechanism is used to fix the side beam; The pre-deformation mechanism includes a connecting portion and a pressing portion which are connected to each other. The connecting portion is connected to the base and is arranged in the first area. The pressing portion is telescopically arranged relative to the connecting portion so that the pressing portion can extend into the second area and press the side beam.

2. The assembly tool according to claim 1, characterized in that: The second region includes two first sub-segments and two second sub-segments, the two first sub-segments are disposed on both sides of the first region in the second direction, and the two second sub-segments are disposed on both sides of the first region in the third direction. The pressing portion is telescopically arranged relative to the connecting portion along the second direction or the third direction so that the pressing portion can extend into the second area and press the side beam, and the first direction, the second direction and the third direction intersect each other.

3. The assembly tool according to claim 2, characterized in that: The pre-deformation mechanism includes a first mechanism and a second mechanism, wherein the pressing portion of the first mechanism is telescopically arranged relative to its connecting portion along the second direction, and the connecting portion is movably arranged relative to the base along the third direction, and the pressing portion of the second mechanism is telescopically arranged relative to its connecting portion along the third direction, and the connecting portion is movably arranged relative to the base along the second direction.

4. The assembly tool according to claim 3, characterized in that: The pre-deformation mechanism also includes a first transmission part, which is connected to the base, and the connecting part is connected to the first transmission part and is movably arranged along the extension direction of the first transmission part, wherein the first transmission part of the first mechanism extends along the second direction, and the first transmission part of the second mechanism extends along the third direction.

5. The assembly tool according to claim 4, characterized in that: The pre-deformation mechanism further includes a first groove arranged in the first area, the first transmission part and a part of the connecting part are located in the first groove, and the pressing part is located outside the first groove.

6. The assembly tool according to claim 1, characterized in that: The limiting mechanism includes a second groove arranged on the bearing surface, the second groove continuously extends in the second area and is arranged around the first area, and the second groove is used to accommodate at least part of the side beam.

7. The assembly tool according to claim 2, characterized in that: The limiting mechanism includes a clamping portion, and the clamping portion includes a second transmission portion and two clamping blocks. The second transmission portion extends in the first sub-segment along the second direction, and / or the second transmission portion extends in the second sub-segment along the third direction. The two clamping blocks are connected to the second transmission portion and are movably arranged along the extension direction of the second transmission portion so that the spacing between the two clamping blocks is adjustable.

8. The assembly tool according to claim 7, characterized in that: The limiting mechanism further includes a third groove, which is formed by recessing a portion of the second region, and the second transmission portion and a portion of the clamping portion are accommodated in the third groove.

9. The assembly tool according to claim 8, characterized in that: The limiting mechanism includes a second groove arranged on the bearing surface, the second groove extends continuously in the second area and is arranged around the first area, the second groove is used to accommodate at least part of the side beam, and the third groove is arranged on both sides of the second groove in its width direction at both ends of its extension direction, and the size of the third groove in the first direction is larger than the size of the second groove in the first direction.

10. The assembly tool according to claim 1, characterized in that: The base includes a pedestal, a workbench and at least one lifting mechanism, wherein the pedestal and the workbench are arranged at two ends of the lifting mechanism in a first direction, the lifting mechanism is telescopically arranged in the first direction, and the bearing surface is arranged on a side of the workbench away from the pedestal.

11. The assembly tool according to claim 10, characterized in that: The base platform includes at least two lifting mechanisms, and the lifting mechanism also includes a support member, and the support member is connected to at least two adjacent lifting mechanisms.

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