Drawing structure and battery production test equipment

Abstract

The utility model relates to the technical field of battery production test equipment, and discloses a drawing structure and battery production test equipment, the drawing structure comprises two guide rails and a sliding support, the sliding support comprises a first sheet metal part, a second sheet metal part, a first connecting plate and a second connecting plate, the first sheet metal part and the second sheet metal part are arranged at an interval along a first horizontal direction, and the first connecting plate is arranged at an interval along a second horizontal direction; the first connecting plate and the second connecting plate are arranged in a spaced mode in the second horizontal direction, the first connecting plate and the second connecting plate are located between the first sheet metal part and the second sheet metal part, and the first connecting plate and the second connecting plate are spliced with the first sheet metal part and the second sheet metal part through fasteners respectively. According to the drawing structure, the first sheet metal part, the second sheet metal part, the first connecting plate and the second connecting plate can be spliced to form the mounting frame, a complex and expensive welding process is not needed, the drawing structure has the advantages of being easy to assemble and reliable in structure, and the production and manufacturing cost of the drawing structure can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery production test equipment, and in particular to a pulling structure and battery production test equipment. BACKGROUND

[0002] The technical field of battery production test equipment is an important part of the battery industry, which covers the entire production process of batteries from raw material processing to finished battery assembly. In this process, there are multiple key process links such as capacity distribution and formation. The formation and distribution process is a key link in the battery production process. The formation process aims to activate the chemical active substances of the positive and negative electrodes of the battery to ensure that the battery has stable electrochemical reaction capability, and the distribution process classifies the capacity of the activated battery to meet the needs of different application scenarios.

[0003] In the prior art, the probe assembly is arranged on the sliding support, and the sliding support is slidably connected with the fixed support of the formation and distribution equipment, so that the probe assembly can slide relative to the fixed support, thereby facilitating the maintenance of the probe assembly. The sliding support not only needs to be adapted to the size and shape of the probe assembly, but also needs to have a certain bearing capacity. The existing sliding support for arranging the probe assembly is a welded frame formed by welding a plurality of metal pieces. However, the welding process is relatively high in cost, and the welded part is prone to breakage, which not only increases the cost of the entire formation and distribution equipment, but also easily causes the probe assembly to fall and be damaged when the welded frame bears a high load. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application discloses a sliding support which can be spliced to form an installation frame body through a first sheet metal piece, a second sheet metal piece, a first connecting plate and a second connecting plate, without the need for a relatively complex and expensive welding process. The sliding support has the advantages of simple assembly and reliable structure, can reduce production and manufacturing costs, and improve production efficiency.

[0005] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a sliding support is provided, comprising: two guide rails, the two guide rails are spaced apart along a first horizontal direction;

[0006] The sliding support is slidably arranged on the guide rails, and the sliding support comprises a first sheet metal piece, a second sheet metal piece, a first connecting plate and a second connecting plate. The first sheet metal piece and the second sheet metal piece are spaced apart along the first horizontal direction and are slidably arranged on the corresponding guide rails, respectively. The first connecting plate and the second connecting plate are spaced apart along a second horizontal direction, and the first connecting plate and the second connecting plate are located between the first sheet metal piece and the second sheet metal piece. The first connecting plate and the second connecting plate are spliced with the first sheet metal piece and the second sheet metal piece by fasteners, respectively.

[0007] The first horizontal direction is perpendicular to the second horizontal direction.

[0008] As an optional implementation, a top of the first sheet metal part is bent to form a first mounting portion, the first mounting portion extends along the second horizontal direction and is located on a side of the first sheet metal part facing away from the second sheet metal part, a top of the second sheet metal part is bent to form a second mounting portion, the second mounting portion extends along the second horizontal direction and is located on a side of the second sheet metal part facing away from the first sheet metal part, and the first mounting portion and the second mounting portion are used to mount a power module.

[0009] As an optional implementation, the fastener is a screw.

[0010] As an optional implementation, the first connecting plate and the second connecting plate are respectively located at two ends of the first sheet metal part along the second horizontal direction.

[0011] As an optional implementation, the sliding support further includes a first reinforcing member, the first reinforcing member extends along the second horizontal direction, and two ends of the first reinforcing member are respectively connected to the first sheet metal part and the second sheet metal part.

[0012] According to an embodiment of the second aspect of the present application, a battery production test device is provided, including the foregoing pull-out structure.

[0013] As an optional implementation, the battery production test device further includes a fixed support and a probe module.

[0014] The guide rail of the pull-out structure is arranged on the fixed support, and the probe module is arranged on the sliding support of the pull-out structure.

[0015] As an optional implementation, the fixed support includes a first fixed member, a second fixed member, and a second reinforcing member, the first fixed member and the second fixed member are arranged at intervals along a first horizontal direction, and the second reinforcing member is connected to the first fixed member and the second fixed member.

[0016] The sliding support is arranged between the first fixed member and the second fixed member, a first sheet metal part of the sliding support is in sliding connection with the first fixed member, and a second sheet metal part of the sliding support is in sliding connection with the second fixed member.

[0017] As an optional implementation, the second reinforcing member comprises two columns and a rod body, the bottom of one of the columns is connected with the first fixing member respectively, the bottom of the other column is connected with the second fixing member, and the two ends of the rod body are connected with the top of the two columns respectively, and the rod body is located above the sliding support.

[0018] As an optional implementation, the battery production test device further comprises two limiting members, the two limiting members are detachably arranged on the first fixing member or the second fixing member, the two limiting members are arranged in the first horizontal direction, and the pulling structure is located between the two limiting members.

[0019] The limiting member is located on the sliding path of the sliding support of the pulling structure.

[0020] Compared with the prior art, the application has the following beneficial effects:

[0021] The sliding support provided by the application can connect the first sheet metal member and the second sheet metal member together through the first connecting plate and the second connecting plate to form a frame structure, can carry the probe assembly, and is connected through fasteners between the first connecting plate and the first sheet metal member and the second sheet metal member and connected through fasteners between the second connecting plate and the first sheet metal member and the second sheet metal member, that is, the whole frame structure is connected and fixed through fasteners, compared with the welding frame used in the prior art, the application does not need to use a complex and expensive welding process, can simplify the manufacturing process, and can reduce the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 The structure diagram of the pulling structure and the fixed support disclosed by the embodiments of the application is shown in the drawings.

[0024] Figure 2 The structure diagram of the sliding support and the fixed support from another perspective disclosed by the embodiments of the application is shown in the drawings.

[0025] Figure 3 The structure diagram of the sliding support and the fixed support from another perspective disclosed by the embodiments of the application is shown in the drawings.

[0026] Explanation of reference signs:

[0027] 1 - first sheet metal part; 11 - first mounting portion; 2 - second sheet metal part; 21 - second mounting portion; 3 - first connecting plate; 4 - second connecting plate; 5 - first reinforcing member; 6 - first fixing member; 7 - second fixing member; 8 - second reinforcing member; 81 - post; 82 - rod body; 9 - limiting member; 10 - guide rail; a - first horizontal direction; b - second horizontal direction. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0029] In the present application, the terms "upper", "lower", "top", "bottom", "inner", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0030] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0031] In addition, the terms "provided with", "provided with", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific situation.

[0032] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0033] The embodiment of the present application provides a sliding support, which can be spliced to form an installation frame body through a first sheet metal piece 1, a second sheet metal piece 2, a first connecting plate 3 and a second connecting plate 4, and does not need a relatively complex and expensive welding process, has the advantages of simple assembly and reliable structure, can reduce production cost and improve production efficiency.

[0034] The technical solutions of the present application will be further described below with reference to the embodiments and the drawings.

[0035] Please refer to Figure 1 and Figure 2 , Figure 1 The structure diagram of the sliding support and the fixed support disclosed by the embodiment of the present application is shown in the figure. Figure 1 The guide rail 10 in the figure is an explosion display view, Figure 2 The structure diagram of the sliding support and the fixed support disclosed by the embodiment of the present application is shown in the figure. The embodiment of the present application discloses a sliding structure, which is applied to a battery production test device, and the sliding structure comprises two guide rails 10 and a sliding support, the two guide rails 10 are arranged at intervals along a first horizontal direction a, Figure 1 The guide rail 10 in the figure is one of the two guide rails 10, Figure 1 The guide rail 10 in the figure is one of the two guide rails 10, The sliding support comprises a first sheet metal piece 1, a second sheet metal piece 2, a first connecting plate 3 and a second connecting plate 4, the first sheet metal piece 1 and the second sheet metal piece 2 are arranged at intervals along a first horizontal direction a and are respectively slidably arranged on the corresponding guide rail 10, the first connecting plate 3 and the second connecting plate 4 are arranged at intervals along a second horizontal direction b, the first connecting plate 3 and the second connecting plate 4 are located between the first sheet metal piece 1 and the second sheet metal piece 2, and the first connecting plate 3 and the second connecting plate 4 are respectively spliced with the first sheet metal piece 1 and the second sheet metal piece 2 through fasteners, that is, the first connecting plate 3 is respectively spliced with the first sheet metal piece 1 and the second sheet metal piece 2 through fasteners, and the second connecting plate 4 is respectively spliced with the first sheet metal piece 1 and the second sheet metal piece 2 through fasteners; wherein the first horizontal direction a is perpendicular to the second horizontal direction b.

[0036] Specifically, the battery production test equipment plays a key role in lithium battery production, not only activates the chemical properties of the battery, but also ensures the consistency and performance of the battery through accurate testing and sorting. The battery production test equipment includes formation and capacity equipment, DCIR (Direct Current Internal Resistance) equipment and OCV (Open Circuit Voltage) equipment, etc. The battery production test equipment can include a fixed support and a probe assembly. The fixed support is the entire frame of the battery production test equipment. The first connecting plate 3 and the second connecting plate 4 can be a connecting plate with a certain thickness, which can be a metal plate or a plastic plate, etc. Herein, no limitation is made. The first connecting plate 3 is connected with the first sheet metal part 1 and the second sheet metal part 2 through fasteners. The second connecting plate 4 is connected with the first connecting plate 3 and the second connecting plate 4 through fasteners. The first sheet metal part 1 and the second sheet metal part 2 can be connected together through the first connecting plate 3 and the second connecting plate 4 to form a frame structure, which can carry and install the probe assembly. Moreover, the first connecting plate 3 and the first sheet metal part 1 and the second sheet metal part 2 are spliced through fasteners, and the second connecting plate 4 and the first sheet metal part 1 and the second sheet metal part 2 are spliced through fasteners. A relatively complex and expensive welding process is no longer needed. Through welding assembly, welding equipment such as a welding machine, welding wire, welding rod, etc. is needed, which has a high purchase and maintenance cost and needs professional operators to operate and maintain. If a finished welding frame is directly purchased, a high purchase cost is also needed. The structure of the sliding support provided in the application embodiment is relatively simple, the connection between the components is realized through fasteners, welding is not needed, the maintenance cost caused by corrosion, fatigue, etc. of the welding position in the later use process is also low, and there is no stress concentration and corrosion problem of the welding frame due to the welding position. Therefore, the sliding support provided in the application embodiment, through the frame structure surrounded by the first sheet metal part 1, the second sheet metal part 2, the first connecting plate 3 and the second connecting plate 4, can not only reduce the production and manufacturing cost, but also improve the production efficiency, and has the technical effect of reducing cost and increasing benefit.

[0037] Moreover, through the reasonable layout of the four frames and the splicing connection of the fasteners, a stable space frame structure can be formed, which can effectively resist the vibration, impact and other external force effects in the equipment operation process, and ensure the normal operation of the equipment.

[0038] According to the sliding support of the embodiment of the utility model, the first sheet metal part 1 and the second sheet metal part 2 can be connected together through the first connecting plate 3 and the second connecting plate 4 to form a frame structure, the frame structure can carry a probe assembly, the first connecting plate 3 is connected to the first sheet metal part 1 and the second sheet metal part 2 through fasteners, the second connecting plate 4 is connected to the first sheet metal part 1 and the second sheet metal part 2 through fasteners, that is, the whole frame structure is connected and fixed through fasteners, compared with the welding frame used in the prior art, the embodiment of the application does not need to use a complex and expensive welding process, not only can simplify the manufacturing process, but also can reduce the production cost.

[0039] The sheet metal part has the advantages of relatively low raw material cost, relatively mature processing technology and high production efficiency, the use of the sheet metal part in the first sheet metal part 1, the second sheet metal part 2, the first connecting plate 3 and the second connecting plate 4 can reduce the weight of the whole support, thereby reducing the overall weight of the equipment, facilitating installation and movement, and the sheet metal part has high strength and rigidity, meeting the bearing requirement of the sliding support in the use process, ensuring the stability and reliability of the support, so that the use of the sheet metal part in the sliding support can reduce the production cost, improve the performance-price ratio of the product, and be beneficial to the market promotion and application of the product.

[0040] The top of the first sheet metal part 1 is bent to form a first mounting portion 11, the first mounting portion 11 extends along the second horizontal direction b and is located on the side of the first sheet metal part 1 away from the second sheet metal part 2, the top of the second sheet metal part 2 is bent to form a second mounting portion 21, the second mounting portion 21 extends along the second horizontal direction b and is located on the side of the second sheet metal part 2 away from the first sheet metal part 1, and the first mounting portion 11 and the second mounting portion 21 can be used for mounting a power module.

[0041] Specifically, the sheet metal part also has the advantage of easy processing. The sheet metal part can be customized and processed according to actual needs. Through processes such as stamping, bending, and cutting, a frame of various shapes and sizes can be manufactured to meet the design requirements of different battery production and testing equipment. In the embodiment of the application, the first sheet metal part 1 and the second sheet metal part 2 constitute a sliding bracket. Not only can the strength of the sliding bracket be ensured and the weight of the sliding bracket be reduced, but also the bottom of the first sheet metal part 1 can be bent to form a first mounting portion 11, and the top of the second sheet metal part 2 can be bent to form a second mounting portion 21. The first mounting portion 11 and the second mounting portion 21 can cooperate to provide a mounting fulcrum for components on the top of the sliding bracket. No additional complex fixing device or cumbersome installation steps are required, which improves the assembly efficiency of the equipment. Specifically, a power module can be installed. The power module is installed on the first mounting portion 11 and the second mounting portion 21. When the power module needs to be maintained or replaced, it can be easily disassembled from the mounting portion without the need to disassemble the entire sliding bracket or other components on a large scale, thereby reducing maintenance costs and downtime and improving the maintainability of the equipment.

[0042] In some embodiments, the fastener is a screw.

[0043] Specifically, the screw includes a first screw, a second screw, a third screw, and a fourth screw. The first sheet metal part 1 has a first through hole at a corresponding position of the first connecting plate 3 and a second through hole at a corresponding position of the second connecting plate 4. The side wall of the first connecting plate 3 connected to the first sheet metal part 1 is provided with a first threaded hole, and the side wall of the second connecting plate 4 connected to the first sheet metal part 1 is provided with a second threaded hole. The first threaded hole corresponds to the first through hole, and the first screw is screwed through the first through hole and the first threaded hole. The second threaded hole corresponds to the second through hole, and the second screw is screwed through the second through hole and the second threaded hole. The second sheet metal part 2 has a third through hole at a corresponding position of the first connecting plate 3 and a fourth through hole at a corresponding position of the second connecting plate 4. The side wall of the first connecting plate 3 connected to the second sheet metal part 2 is provided with a third threaded hole, and the side wall of the second connecting plate 4 connected to the second sheet metal part 2 is provided with a fourth threaded hole. The third threaded hole corresponds to the third through hole, and the third screw is screwed through the third through hole and the third threaded hole. The fourth threaded hole corresponds to the fourth through hole, and the fourth screw is screwed through the fourth through hole and the fourth threaded hole.

[0044] The first screw is screwed through the first through hole and the first threaded hole to realize the connection of the first sheet metal part 1 and the first connecting plate 3; the second screw is screwed through the second through hole and the second threaded hole to realize the connection of the first sheet metal part 1 and the second connecting plate 4; the third screw is screwed through the third through hole and the third threaded hole to realize the connection of the second sheet metal part 2 and the first connecting plate 3; and the fourth screw is screwed through the fourth through hole and the fourth threaded hole to realize the connection of the second sheet metal part 2 and the second connecting plate 4. By using screws for connection, a larger connection force can be provided through mechanical engagement of threads, ensuring that the connection between the various frames is firm and reliable, effectively preventing loosening of the connection due to vibration and other reasons during equipment operation, thereby ensuring the stability and overall performance of the sliding support. It is also convenient to install and disassemble, and the installation and disassembly process is relatively simple and convenient, without the need for complex operations such as welding, and can be completed using simple tools. This has great advantages in the assembly, maintenance and adjustment process of the equipment, saving time and labor costs and improving work efficiency.

[0045] In combination Figure 1 and Figure 2 In some embodiments, the first connecting plate 3 and the second connecting plate 4 are respectively located at two ends of the first sheet metal part 1 along the second horizontal direction b.

[0046] Specifically, the first connecting plate 3 and the second connecting plate 4 are located at two ends of the first sheet metal part 1 along the second horizontal direction b, and this layout makes the sliding support have better support and stability in this direction, effectively resisting vibration and external force during equipment operation, and helps to optimize the spatial layout of the sliding support, improving the space utilization and overall performance of the equipment.

[0047] In combination Figure 1 and Figure 2 In some embodiments, the sliding support further comprises a first reinforcing member 5 extending along the second horizontal direction b, and the two ends of the first reinforcing member 5 are respectively connected to the first sheet metal part 1 and the second sheet metal part 2.

[0048] Specifically, the first reinforcing member 5 can be a rod body 82, and the two ends of the first reinforcing member 5 can be connected to the first sheet metal part 1 and the second sheet metal part 2 through fasteners. The number of first reinforcing members 5 can be one, which can be arranged at the middle position of the first sheet metal part 1 along the second horizontal direction b, or multiple, which can be evenly spaced along the second horizontal direction b. The arrangement of the first reinforcing member 5 can effectively enhance the overall structural strength of the sliding support, keep the first sheet metal part 1 and the second sheet metal part 2 parallel, and enable them to better withstand various forces and loads during equipment operation, reducing the risk of deformation and damage due to external forces and improving the reliability and service life of the equipment.

[0049] The embodiment of the application discloses a battery production test equipment, comprising: the foregoing pull-out structure.

[0050] Please refer to Figures 1 to 3 , Figure 3 The structure diagram of the sliding support and the fixed support in another view of the embodiment of the application is disclosed. The embodiment of the application also discloses a battery production test equipment, comprising: a fixed support and a probe module.

[0051] The guide rail 10 of the pull-out structure is arranged on the fixed support, and the probe module is arranged on the sliding support of the pull-out structure.

[0052] Specifically, the battery production test equipment plays a key role in lithium battery production. The formation and capacity equipment not only activates the chemical properties of the battery, but also ensures the consistency and performance of the battery through accurate testing and sorting. The battery production test equipment includes formation and capacity equipment, DCIR equipment and OCV equipment, etc. The battery production test equipment can include a fixed support and a probe assembly. The fixed support is the entire frame of the formation and capacity equipment. The probe assembly needs to be maintained regularly. In the embodiment of the application, the probe assembly is arranged on the sliding support, and the sliding support is slidably connected with the fixed support, so that the user can pull out the probe assembly, which facilitates the installation, debugging, maintenance and replacement of the probe assembly, and improves the maintenance efficiency and convenience of the equipment.

[0053] The battery production test equipment can also include a power module, which is arranged on the sliding support and installed through the first mounting part and the second mounting part.

[0054] In combination Figure 2 and 3 In some embodiments, the fixed support includes a first fixing part 6, a second fixing part 7 and a second reinforcing part 8. The first fixing part 6 and the second fixing part 7 are arranged at intervals along the first horizontal direction a, and the second reinforcing part 8 is connected with the first fixing part 6 and the second fixing part 7 respectively.

[0055] The pull-out structure is arranged between the first fixing part 6 and the second fixing part 7, and the sliding support of the pull-out structure is slidably connected with the first fixing part 6 and the second fixing part 7 respectively.

[0056] Specifically, the pull-out structure is arranged between the first fixing member 6 and the second fixing member 7, and the sliding support is connected to the first fixing member 6 through the first sheet metal member 1 and connected to the second fixing member 7 through the second sheet metal member 2, so that the sliding support can slide smoothly on the fixed support, realizing flexible movement and positioning of the sliding support and facilitating adjustment and maintenance of components on the sliding support. Moreover, the second reinforcing member 8 is connected to the first fixing member 6 and the second fixing member 7 respectively, so as to form a stable fixed support structure, ensure that the first fixing member 6 and the second fixing member 7 remain parallel, and avoid deformation of the first fixing member 6 and the second fixing member 7 under stress, thereby affecting the normal sliding of the sliding support.

[0057] In combination Figure 3 In some embodiments, the second reinforcing member 8 includes two columns 81 and a rod body 82, the bottom of one column 81 is connected to the first fixing member 6, the bottom of the other column 81 is connected to the second fixing member 7, and the rod body 82 is connected to the top of the two columns 81.

[0058] Specifically, the second reinforcing member 8 composed of two columns 81 and a rod body 82 can enhance the structural stability of the fixed support, so that it can better withstand various forces and loads during equipment operation, reduce the risk of deformation and damage caused by external forces, and the columns 81 raise the height of the rod body 82, which can increase the accommodating space surrounded by the first fixing member 6, the second fixing member 7 and the reinforcing member, and avoid affecting the sliding of the inner sliding support.

[0059] In combination Figure 1 In some embodiments, the battery production test equipment further includes two limiting members 9, which are detachably arranged on the first fixing member 6 or the second fixing member 7, and are arranged at intervals along the first horizontal direction a, and the pull-out structure is located between the two limiting members 9; wherein the limiting member 9 is located on the sliding path of the sliding support of the pull-out structure.

[0060] Specifically, the limiting member 9 can be a fixed block or a baffle, and the two limiting members 9 can limit the sliding support to a specified position, provide positioning for the sliding support, and also avoid free sliding of the sliding support, which affects the normal work of the probe assembly and other components arranged on the sliding support. The limiting member 9 is detachably arranged, and after one limiting member 9 is detached, the sliding support can be pulled out for maintenance of the probe assembly.

[0061] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; 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.

Claims

1. A pull structure applied to a battery production test device, characterized in that, The pull-out structure comprises: two guide rails (10), the two guide rails (10) are spaced apart along a first horizontal direction (a); a sliding support, the sliding support comprises a first sheet metal part (1), a second sheet metal part (2), a first connecting plate (3) and a second connecting plate (4), the first sheet metal part (1) and the second sheet metal part (2) are spaced apart along the first horizontal direction (a) and are respectively slidably arranged on the corresponding guide rail (10), the first connecting plate (3) and the second connecting plate (4) are spaced apart along a second horizontal direction (b), the first connecting plate (3) and the second connecting plate (4) are located between the first sheet metal part (1) and the second sheet metal part (2), and the first connecting plate (3) and the second connecting plate (4) are respectively spliced with the first sheet metal part (1) and the second sheet metal part (2) by fasteners. The first horizontal direction (a) is perpendicular to the second horizontal direction (b).

2. The pull-out structure according to claim 1, wherein: a first mounting portion (11) is formed on the top of the first sheet metal part (1) by bending, the first mounting portion (11) extends along the second horizontal direction (b) and is located on the side of the first sheet metal part (1) away from the second sheet metal part (2), and a second mounting portion (21) is formed on the top of the second sheet metal part (2) by bending, the second mounting portion (21) extends along the second horizontal direction (b) and is located on the side of the second sheet metal part (2) away from the first sheet metal part (1).

3. The pull-out structure according to claim 1, wherein: the fastener is a screw.

4. The pull-out structure according to claim 1, wherein: the first connecting plate (3) and the second connecting plate (4) are respectively located at two ends of the first sheet metal part (1) along the second horizontal direction (b).

5. The pull-out structure according to claim 1, wherein: the sliding support further comprises a first reinforcing member (5), the first reinforcing member (5) extends along the second horizontal direction (b) and is connected to the first sheet metal part (1) and the second sheet metal part (2) at two ends thereof.

6. A battery production test apparatus characterized by comprising: The pull-out structure according to any one of claims 1-5. The battery production test device further comprises:

7. The battery production test apparatus according to claim 6, wherein a fixed support and a probe module; wherein the guide rail (10) of the pull-out structure is arranged on the fixed support, and the probe module is arranged on the sliding support of the pull-out structure.

8. The battery production test device according to claim 7, wherein: the fixed support comprises a first fixed part (6), a second fixed part (7) and a second reinforcing member (8), the first fixed part (6) and the second fixed part (7) are spaced apart along a first horizontal direction (a), and the second reinforcing member (8) is connected to the first fixed part (6) and the second fixed part (7) respectively. ​ The pulling structure is arranged between the first fixing member (6) and the second fixing member (7), and a sliding support of the pulling structure is respectively in sliding connection with the first fixing member (6) and the second fixing member (7).

9. The battery production test device according to claim 8, characterized in that, The second reinforcing member (8) comprises two columns (81) and a rod body (82), the bottom of one column (81) is connected with the first fixing member (6), the bottom of the other column (81) is connected with the second fixing member (7), the two ends of the rod body (82) are connected with the top of the two columns (81), and the rod body (82) is located above the sliding support.

10. The battery production test apparatus according to claim 8 or 9, characterized by, The battery production test device further comprises: Two limiting members (9) are detachably arranged on the first fixing member (6) or the second fixing member (7), the two limiting members (9) are arranged in a spaced manner along the first horizontal direction (a), and the pulling structure is located between the two limiting members (9). The limiting member (9) is located on the sliding path of the sliding support of the pulling structure.

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