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CN-121972955-A - Control method for flatness of connection between frame and flat plate

CN121972955ACN 121972955 ACN121972955 ACN 121972955ACN-121972955-A

Abstract

The invention discloses a flatness control method for connection of a frame body and a flat plate. The method comprises the following steps of placing a frame body on an operation platform, enabling a sucker module and a heating module to be located in the frame body, placing a flat plate on the top of the frame body, enabling the sucker module and the heating module to be located on the lower side of the flat plate, enabling the heating module to heat the flat plate to reach a preset temperature, enabling the sucker module to absorb the flat plate to pre-fix the flat plate and the frame body, compressing the flat plate and the frame body at the peripheral edge position of the frame body, then driving screws to enable the flat plate and the frame body to be fixedly connected through the screws, closing the sucker module, taking out the connected flat plate and frame body from a nailing tool, and cooling the flat plate and the frame body in a normal temperature environment. The invention has the beneficial effects of solving the problem that the flatness of the flat plate is difficult to ensure in the process of being connected with the frame body through screws.

Inventors

  • HUANG JIEXIONG
  • CHEN BO

Assignees

  • 重庆平伟汽车系统有限公司

Dates

Publication Date
20260505
Application Date
20260330

Claims (10)

  1. 1. The utility model provides a framework and flat board connection flatness control method, includes nailing frock (A), nailing frock (A) has operation platform (1), be equipped with sucking disc module (2) and heating module (3) on operation platform (1), its characterized in that, flatness control method includes following steps: S1, placing a frame body (4) on an operation platform (1), enabling a sucking disc module (2) and a heating module (3) to be positioned in the frame body (4), placing a flat plate (5) on the top of the frame body (4), and enabling the sucking disc module (2) and the heating module (3) to be positioned on the lower side of the flat plate (5); s2, starting a heating module (3) to heat the flat plate (5) so as to heat the flat plate (5) to a preset temperature; S3, starting the sucking disc module (2) to suck the flat plate (5), and pre-fixing the flat plate (5) and the frame body (4); s4, pressing the flat plate (5) and the frame body (4) at the circumferential edge position of the frame body, and then driving in a screw to fixedly connect the flat plate (5) and the frame body (4) through the screw; S5, closing the sucker module (2), taking out the connected flat plate (5) and frame body (4) from the nailing tool (A), and cooling in a normal temperature environment.
  2. 2. The method for controlling the flatness of the connection between the frame and the flat plate according to claim 1, wherein the operation platform (1) is provided with positioning assemblies (6) distributed along the periphery of the heating module (3), and in the step S1, the frame (4) is positioned by the positioning assemblies (6), and after the frame (4) and the flat plate (5) are placed in the nailing tool (A), the heating module (3) is positioned below the flat plate (5).
  3. 3. The method for controlling the flatness of the connection between the frame and the flat plate according to claim 1, wherein in the step S1, the top of the heating module (3) is level with the top of the frame (4), and after the flat plate (5) is placed on the top of the frame (4), the lower side of the flat plate (5) is in direct contact with the top of the heating module (3); and/or in the step S4, the flat plate (5) and the frame body (4) are fixedly connected through an FDS nailing process.
  4. 4. The method for controlling the flatness of a frame and a flat plate according to claim 1, wherein the heating module (3) comprises a plurality of heating assemblies (31) distributed in an array, and each heating assembly (31) is independently controlled in temperature.
  5. 5. The method for controlling flatness of connection between a frame and a flat plate according to claim 4, wherein each heating assembly (31) comprises six mounting posts (312) fixedly arranged on an operation platform (1) and heating plates (311) connected to tops of the mounting posts (312), through holes (311 a) are formed in the heating plates (311), the sucker module (2) comprises a plurality of sucker assemblies (21), and each sucker assembly (21) is correspondingly arranged in the through hole (311 a).
  6. 6. A frame and flat panel connection flatness control method according to claim 5, characterized in that each of the suction cup assemblies (21) comprises a mounting bracket (211) arranged below a heating plate (311) and a suction cup (212) mounted on top of the mounting bracket (211), the suction cup (212) being located in the through hole (311 a).
  7. 7. The method for controlling the flatness of the connection between the frame and the flat plate according to claim 1, wherein in the step S4, the pressing assemblies (7) are distributed on the peripheral edge of the operation platform (1), the flat plate (5) and the frame (4) are pressed by the pressing assemblies (7), the pressing assemblies (7) comprise a plurality of manual elbow clamps (71) arranged on the periphery of the frame (4), the manual elbow clamps (71) are provided with pressing ends (711), and the pressing ends (711) can be pressed against the top of the flat plate (5).
  8. 8. The method for controlling the flatness of a connection between a frame and a flat plate according to claim 7, wherein the pressing end (711) is provided with a plurality of avoiding openings (711 a), and the avoiding openings (711 a) correspond to the screwing positions.
  9. 9. The method for controlling the flatness of the connection between the frame and the flat panel according to claim 2, wherein the positioning assembly (6) comprises a plurality of positioning plates (61) and a plurality of supporting blocks (62); the positioning plates (61) are vertically arranged and distributed on the side parts of the frame body (4) and are used for limiting the horizontal position of the frame body (4); the top shape of the supporting block (62) is adapted to the bottom shape of the frame body (4) and is used for supporting the frame body (4) so that the top of the frame body (4) is kept horizontal.
  10. 10. The method for controlling the flatness of a frame and a flat plate according to claim 1, wherein the step S2 and the step S3 further comprise a step of applying a sealant on the joint surface of the flat plate (5) and the frame (4).

Description

Control method for flatness of connection between frame and flat plate Technical Field The invention relates to the technical field of battery boxes, in particular to a flatness control method for connection of a frame body and a flat plate. Background In the manufacturing process of the new energy battery case, it is generally necessary to cover and fix a flat plate on one side surface of the case to form a closed case structure. The flat plate is made of aluminum plates, and the frame body and the aluminum plates are assembled and fixed by screw connection. Because of the limitation of the geometric shape, the aluminum flat plate generally has extremely low section moment of inertia and bending rigidity, and is extremely easy to generate unstable buckling in the processing and assembling processes, so that the aluminum flat plate has obvious poor flatness phenomena such as wavy fluctuation and the like in a single piece state. When the aluminum plate is assembled with the frame body by adopting conventional screw connection, the deformation of the aluminum plate is easy to be further aggravated due to the factors of uneven tightening force, partial compression and the like, so that the flatness of the assembled aluminum plate is difficult to meet the design requirement. Particularly, the aluminum plate is connected by adopting a Flow Drilling Screw (FDS) process, larger local heat input and mechanical acting force can be generated in the construction process, the thermal deformation and forced deformation of the aluminum plate can be remarkably aggravated, and the flatness of the finished product box body is more difficult to ensure stably. Disclosure of Invention In view of the above, the present invention provides a method for controlling the flatness of a connection between a frame and a flat plate, which aims to solve the problem that the flatness of the flat plate is difficult to be ensured during the process of screw connection with the frame. In order to achieve the above purpose, the technical scheme of the invention is as follows: The flatness control method for connecting the frame body and the flat plate comprises a nailing tool, wherein the nailing tool is provided with an operation platform, and the operation platform is provided with a sucker module and a heating module, and the flatness control method comprises the following steps: S1, placing a frame on an operation platform, enabling a sucking disc module and a heating module to be positioned in the frame, placing a flat plate on the top of the frame, and enabling the sucking disc module and the heating module to be positioned on the lower side of the flat plate; s2, starting a heating module to heat the flat plate, so that the flat plate is heated to a preset temperature; S3, starting a sucker module to adsorb the flat plate, and pre-fixing the flat plate and the frame; S4, pressing the flat plate and the frame body at the peripheral edge position of the frame body, and then driving in a screw to fixedly connect the flat plate and the frame body through the screw; S5, closing the sucker module, taking out the connected flat plate and frame from the nailing tool, and cooling in a normal temperature environment. Preferably, the operation platform is provided with positioning components distributed along the periphery of the heating module, in the step S1, the frame body is positioned through the positioning components, and after the frame body and the flat plate are placed in the nailing tool, the heating module is positioned below the flat plate. In the step S1, the top of the heating module is level with the top of the frame, and after the flat plate is placed on the top of the frame, the lower side of the flat plate is in direct contact with the top of the heating module; and/or in the step S4, the flat plate and the frame body are fixedly connected through an FDS nailing process. Preferably, the heating module comprises a plurality of heating assemblies distributed in an array, and each heating assembly is independently controlled in temperature. Preferably, each heating assembly comprises six mounting columns fixedly arranged on the operation platform and a heating plate connected to the tops of the mounting columns, a through hole is formed in the heating plate, each sucking disc module comprises a plurality of sucking disc assemblies, and each sucking disc assembly is correspondingly arranged in the through hole. Preferably, each sucker assembly comprises a mounting bracket arranged below the heating plate and a sucker arranged at the top of the mounting bracket, and the sucker is positioned in the through hole. Preferably, in step S4, the flat plate and the frame body are pressed by the pressing assembly, the pressing assembly comprises a plurality of manual elbow clamps arranged on the periphery of the frame body, the manual elbow clamps are provided with pressing ends, and the pressing ends can be pressed against the top of the f