A deburring rotary cutting process

Abstract

The application relates to the technical field of rotary cutting processes, in particular to a rotary cutting process for removing edge marks, which comprises the following steps: S1, fixing a metal bottom cover through upper and lower mold closing; S2, rotating a rotary cutting knife around the metal bottom cover, and separately performing rotary cutting on the same horizontal plane to form a pre-cut and leave a metal bottom cover corner as a support; S3, the upper and lower mold closing is further closed to each other; and S4, the rotary cutting knife extends to the side edge of the metal bottom cover along the pre-cut. The application has the advantages of smooth knife edge, no burr and elimination of knife marks at the corner.

Description

Technical Field

[0001] This application relates to the field of rotary cutting technology, and more specifically, to a rotary cutting process for removing edge marks. Background Technology

[0002] The manufacturing process of the metal bottom cover structure of existing handheld communication products, tablet computers and their peripheral accessories (such as stands, keyboards, protective covers, etc.) generally involves stamping the metal sheet material and then performing CNC machining and surface treatment processes (baking paint, anodizing and dyeing) to complete the bottom cover product. After the bottom cover is formed, it still needs to undergo multiple post-processing (baking paint, anodizing, dyeing and subsequent rotary cutting).

[0003] Currently, most rotary cutting processes use: 1. The secondary side-cutting technology of "multi-directional slider structure" is to perform side rotary cutting at the corner of the metal bottom cover on the same horizontal plane, and perform side rotary cutting on both sides at two opposite corners. The secondary side cutting not only increases the processing steps of the metal bottom cover, but also makes it difficult to ensure that no joint marks are generated during the entire rotary cutting process when the cutter is rotary cutting on the same horizontal plane because the multi-directional cuts are all separate. 2. One-time rotary cutting: either the metal base cover or the rotary cutting blade is fixed, and then the rotary cutting blade performs a circular rotary cutting around the metal base cover. This one-time rotary cutting method is simpler than the two-stage side-cutting process. During this process, the blade of the rotary cutting blade must always be spread out on the same horizontal plane. Because the metal base cover is easily affected by gravity when it is rotary cut, the metal base cover is prone to displacement, resulting in uneven cuts. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a rotary cutting process for removing edge marks, which has the advantages of smooth blade edge, no burrs, and elimination of blade marks at corners.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a de-marking rotary cutting process, comprising the following steps, S1: The metal bottom cover is fixed by closing the upper and lower molds; S2: Use a rotary cutter to make individual cuts around the metal bottom cover on the same horizontal plane to create pre-cut openings, leaving the metal bottom cover corners as support; S3: The upper and lower molds are closed together and then brought closer together to complete the final mold assembly; S4: The rotary cutter extends along the pre-cut edge towards the side of the metal bottom cover for further rotary cutting.

[0006] Preferably, in S2, the rotary cutter remains stationary, and the metal bottom cover is rotated by rotating the upper and lower molds.

[0007] In summary, the beneficial effects of this application are as follows: the metal bottom cover is fixed by using upper and lower molds, and then a rotary cutter is used to cut around the metal bottom cover on the same horizontal plane to create a pre-cut, leaving the metal bottom cover corner as support. The upper and lower molds are then used to press the metal bottom cover together to close the mold. The rotary cutter extends along the pre-cut to the side of the metal bottom cover to cut, which has the advantages of smooth blade edge, no burrs, and elimination of knife marks at the corner. Detailed Implementation

[0008] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following embodiments are provided to further illustrate this application in detail. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0009] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to that other component.

[0010] It should be understood that the terms “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application.

[0011] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0012] A rotary cutting process for removing edge marks includes the following steps: S1: The metal bottom cover is fixed by closing the upper and lower molds; S2: Use a rotary cutter to make individual cuts around the metal bottom cover on the same horizontal plane to create pre-cut openings, leaving the metal bottom cover corners as support; S3: The upper and lower molds are closed together and then brought closer together to complete the final mold assembly; S4: The rotary cutter extends along the pre-cut edge towards the side of the metal bottom cover for further rotary cutting.

[0013] In this embodiment, the metal bottom cover is fixed by upper and lower molds. Then, a rotary cutter is used to cut around the metal bottom cover on the same horizontal plane to create a pre-cut. The metal bottom cover corner is left as a support. The upper and lower molds are then used to press the metal bottom cover together to close the mold. The rotary cutter extends along the pre-cut to the side of the metal bottom cover to cut. This has the advantages of a flat cut, no burrs, and elimination of knife marks at the corners.

[0014] Specifically, in S2, the rotary cutter remains stationary, and the metal base cover is rotated by rotating the upper and lower molds. Since the position of the pre-cut must always be kept at the same level, keeping the rotary cutter stationary ensures the consistency of the pre-cut position to a great extent.

[0015] The above embodiments are merely explanations of this application and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A rotary cutting process for removing edge marks, characterized in that: Including the following step, S1: The metal bottom cover is fixed by closing the upper and lower molds; S2: Use a rotary cutter to make individual cuts around the metal bottom cover on the same horizontal plane to create pre-cut openings, leaving the metal bottom cover corners as support; S3: The upper and lower molds are closed together and then brought closer together to complete the final mold assembly; S4: The rotary cutter extends along the pre-cut edge and then cuts along the side of the metal bottom cover.

2. The edge-removing rotary cutting process according to claim 1, characterized in that: In S2, the rotary cutter remains stationary, and the metal bottom cover is rotated by rotating the upper and lower molds.