A clamping tool for milling the end face of an end plate

Abstract

The utility model belongs to the field of end plate processing, is about a kind of end plate milling end face clamping tool, it includes: bottom platform, the bottom platform is connected with workstation;The left and right sides of the workstation are formed with an installation platform respectively;One side of the workstation is formed with the recess cavity compatible with end plate;Rotary pressure cylinder is installed on the installation platform, and the movable end of rotary pressure cylinder is installed with pressure strip;The other side of the workstation is installed with push cylinder by supporting unit, and the movable end of push cylinder is installed with connecting plate;Push rod is installed on the connecting plate, and push rod is movable through workstation;The other end of push rod is installed with top plate, and top plate is located in recess cavity.In the above structure, it has the beneficial effects of: reasonable structure, convenient operation, strong adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of end plate processing technology, specifically, it relates to a clamping fixture for milling the end face of an end plate. Background Technology

[0002] In power storage battery modules, the end plate is one of the most critical structural components. Its main function is to provide mechanical support, external force protection, and structural constraints for the battery module, preventing deformation caused by external forces, thermal expansion and contraction, or vibration during assembly and operation, thereby ensuring the structural stability and safety performance of the module. End plates are usually made of aluminum alloy materials (such as A380, 6061, 6063, etc.), and common manufacturing processes include extrusion molding or die casting to balance strength, quality, and molding precision.

[0003] In a module structure, the side face of the end plate typically contacts the battery guard plate or support frame directly. This contact interface serves as both the assembly reference surface and a crucial connection surface for the module to withstand external forces. Any flatness error or warping on this surface will directly affect the module's assembly accuracy and mechanical properties. For example, poor contact between the end plate and the guard plate can lead to uneven pre-tightening of the module assembly, excessive local gaps, or stress concentration. Over long-term operation, this may result in module shaking, loose bolts, structural fatigue deformation, and even safety hazards. Therefore, the flatness consistency of the contact surface between the end plate and the guard plate is a critical quality control indicator for ensuring the module's mechanical stability and safety performance.

[0004] To ensure the flatness of the contact surface, high-precision CNC milling is typically required in the end plate manufacturing process. The main goal of the milling process is to remove the deformed layer, burrs, and surface stress layer from die casting or extrusion molding, so that the end face meets the specified flatness, tolerance, and surface roughness requirements (e.g., within 0.05mm). However, in actual production, end plates have complex structures, large dimensions, and limited rigidity. If the clamping is unstable or the force is uneven during the milling process, it can easily lead to poor flatness or poor repeatability of the machined end face.

[0005] Existing machining fixtures generally suffer from the following technical problems: 1. Inappropriate clamping point arrangement: Traditional fixtures often use simple side pressure or end pressure, and the direction of clamping force is not coordinated with the direction of machining force, which causes the workpiece to undergo slight displacement or deformation during milling, affecting machining accuracy.

[0006] 2. Uneven clamping force distribution: Due to the thin-walled or hollow design of the end plate structure, the local rigidity is poor. If the clamping force is too large, it is easy to cause deformation, and if it is too small, it is easy to cause vibration or displacement. It is difficult to balance rigidity and precision.

[0007] 3. Low repeatability: The end plate needs to be clamped frequently during batch processing. If the positioning reference is not unified or the repeatability is poor, it will cause significant differences in the flatness of different workpieces, affecting consistency.

[0008] 4. Conflict between efficiency and stability: In order to improve the production line cycle time, multiple parts need to be processed in parallel or automatically clamped, but existing fixtures often have difficulty maintaining clamping stability while clamping quickly.

[0009] 5. Poor adaptability: Different models of end plates have large differences in structure (such as different thickness, frame shape, and distribution of reinforcing ribs). Traditional fixtures need to be repeatedly adjusted or the positioning module replaced when switching processing, resulting in low changeover efficiency.

[0010] Due to the above issues, end plates often exhibit quality defects such as unstable flatness, dimensional deviations, local indentations, and processing vibrations during the milling process. These defects not only affect subsequent assembly but may also lead to a decrease in the mechanical properties of the module or its scrapping, thereby increasing production costs and the risk of rework. Utility Model Content

[0011] To address the aforementioned problems in the prior art, this utility model provides a clamping fixture for milling the end face of an end plate.

[0012] To achieve the above objectives, the present invention adopts the following technical solution: As one aspect of this utility model, a clamping fixture for milling the end face of an end plate is proposed, comprising: a base platform, on which a worktable is connected; an installation platform is formed on the left and right sides of the worktable; and a cavity adapted to the end plate is formed on one side of the worktable. A rotary clamping cylinder is installed on the mounting platform, and a pressure bar is installed on the movable end of the rotary clamping cylinder; On the other side of the workbench, a push-tightening cylinder is installed via a support unit. A connecting plate is installed on the movable end of the push-tightening cylinder. A push rod is installed on the connecting plate and moves through the workbench. A top plate is installed on the other end of the push rod and is located in a concave cavity.

[0013] Furthermore, one side of the cavity is open.

[0014] Furthermore, a workbench is connected to the base platform via a stiffening plate connector.

[0015] Furthermore, the support unit includes a cylinder fixing plate, on which the push-tightening cylinder is fixedly mounted; pads are respectively installed on the left and right sides of the cylinder fixing plate, and the other end of the pads is connected to the worktable.

[0016] Furthermore, the connecting plate is located between the cylinder fixing plate and the worktable.

[0017] The clamping fixture for milling the end face of the end plate of this utility model has the following advantages: it keeps the end plate clamped stably and with uniform force during the milling process; it provides high repeatability positioning accuracy to ensure machining consistency; it enables quick clamping and changeover to improve production efficiency; it balances the requirements of lightweight end plate structure and machining accuracy; and it effectively prevents flatness defects caused by vibration and deformation during machining. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0019] Figure 1 This is a front view of the structure of the clamping fixture for milling the end face of the end plate according to this utility model; Figure 2 This is a rear view of the clamping fixture for milling the end face of the end plate according to this utility model. Figure 3 This is a reference diagram showing the usage state of the clamping fixture for milling the end face of the end plate according to this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] One embodiment of this application provides a clamping fixture for milling the end face of an end plate, such as... Figures 1-3 As shown, it includes: a base platform 1, which serves a supporting function; A workbench 3 is connected to the base platform 1 via a stiffener connector 2; an installation platform 31 is formed on the left and right sides of the workbench 3; a cavity 32 adapted to the end plate 4 is formed on one side of the workbench 3, and one side of the cavity 32 is open to allow the end face of the end plate 4 to make way for processing. A rotary clamping cylinder 5 is installed on the installation platform 31. A pressure bar 6 is installed on the movable end of the rotary clamping cylinder 5. Under the action of the rotary clamping cylinder 5, the pressure bar 6 clamps the end plate 4 in the cavity 32. On the other side of the workbench 3, a push-tightening cylinder 8 is installed via a support unit 7. A connecting plate 9 is installed on the movable end of the push-tightening cylinder 8. A push rod 10 is installed on the connecting plate 9, and the push rod 10 moves through the workbench 3. A top plate 11 is installed on the other end of the push rod 10. The top plate 11 is located in the cavity 32. Under the action of the push-tightening cylinder 8, the top plate 11 lifts the end plate 4 in the cavity 32. The top plate 11 and the pressure strip 6 work together to limit and fix the end plate 4.

[0022] Furthermore, such as Figure 2 As shown, the support unit 7 includes a cylinder fixing plate 71, and the push-tightening cylinder 8 is fixedly installed on the cylinder fixing plate 71; pads 72 are respectively installed on the left and right sides of the cylinder fixing plate 71, and the other end of the pads 72 is connected to the worktable 3; the connecting plate 9 is located between the cylinder fixing plate 71 and the worktable 3.

[0023] In use, the end plate to be milled is placed in the concave cavity, the rotating clamping cylinder is pressed down, and the pushing cylinder pushes the push rod to completely fix the end plate with the top plate. The clamping fixture of this application should be able to: maintain stable clamping of the end plate and uniform force during milling; provide high repeatability positioning accuracy to ensure machining consistency; achieve quick clamping and changeover to improve production efficiency; balance the requirements of lightweight end plate structure and machining accuracy; and effectively prevent flatness defects caused by vibration and deformation during machining.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A clamping fixture for milling the end face of an end plate, characterized in that, It includes: A base (1) is connected to a workbench (3); an installation platform (31) is formed on the left and right sides of the workbench (3); a cavity (32) adapted to the end plate (4) is formed on one side of the workbench (3). A rotary clamping cylinder (5) is installed on the installation platform (31), and a pressure bar (6) is installed on the movable end of the rotary clamping cylinder (5). On the other side of the workbench (3), a push cylinder (8) is installed via a support unit (7). A connecting plate (9) is installed on the movable end of the push cylinder (8). A push rod (10) is installed on the connecting plate (9). The push rod (10) moves through the workbench (3). A top plate (11) is installed on the other end of the push rod (10). The top plate (11) is located in the cavity (32).

2. The clamping fixture for milling the end face of the end plate as described in claim 1, characterized in that, One side of the cavity (32) is open.

3. The clamping fixture for milling the end face of the end plate as described in claim 1, characterized in that, The base (1) is connected to a workbench (3) via a stiffener connector (2).

4. The clamping fixture for milling the end face of the end plate as described in claim 1, characterized in that, The support unit (7) includes a cylinder fixing plate (71), and the push cylinder (8) is fixedly installed on the cylinder fixing plate (71); pads (72) are installed on the left and right sides of the cylinder fixing plate (71), and the other end of the pads (72) is connected to the worktable (3).

5. The clamping fixture for milling the end face of the end plate as described in claim 4, characterized in that, The connecting plate (9) is located between the cylinder fixing plate (71) and the worktable (3).

Images