Aluminum material cutting device for mobile phone shell production

Abstract

The utility model relates to the section material cutting technical field, specifically disclose a kind of aluminium material cutting device for mobile phone shell production. The cutting device replaces the compression structure for compression and shearing unit with traditional, realize workpiece compression at the same time, through the cooperation of shearing plate and cutting blade, namely, the shearing edge of cutting blade and shearing plate forms similar scissors structure, so that workpiece is cut by cutting blade at the same time, burr of workpiece edge is sheared. The setting of compression and shearing unit simplifies production process, saves the independent deburring procedure and its required handling, clamping time, so that overall production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of profile cutting technology, and in particular to an aluminum cutting device for mobile phone case production. Background Technology

[0002] The production process of aluminum alloy mobile phone cases typically involves first extruding aluminum to obtain rectangular aluminum strips, which are then cut. During the cutting process, as the high-speed rotating saw blade cuts the aluminum from bottom to top, the force acting on the material changes at the last moment before the saw teeth penetrate the top surface. At this point, the remaining material layer is very thin and has extremely poor rigidity. The upward force of the saw teeth is no longer pure "cutting," but rather "tearing" or "flipping." The aluminum, with its good ductility, does not break cleanly at the moment of tearing; instead, it undergoes plastic deformation, curling upwards to form "burrs" or "flipped edges."

[0003] These burrs require secondary manual or mechanical grinding to remove, which increases the number of processes, reduces production efficiency, and makes it difficult to guarantee grinding accuracy.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] This utility model discloses an aluminum cutting device for mobile phone case production. In view of the defects of the prior art, it provides a solution that can remove burrs during the cutting process, making it particularly suitable for the processing of large-scale mobile phone case production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An aluminum cutting device, comprising: frame; A cutting unit, which is mounted on the frame, includes a cutting blade that moves along the cutting path; A clamping and shearing unit configured to hold the workpiece in place during a cutting operation and to shear burrs produced by the cutting blade, the clamping and shearing unit comprising: A pair of clamping elements are symmetrically arranged on both sides of the cutting path; A pair of shearing plates are respectively mounted on the pair of clamping members, and each shearing plate has a shearing edge facing the cutting blade; The cutting motion of the cutting blade works in conjunction with the shearing edge of the shearing plate to remove burrs from the edges of the workpiece while cutting it.

[0007] Preferably, each of the shearing plates includes a bottom surface for contacting the workpiece and a side surface forming the shearing edge, wherein the side surface intersects the bottom surface at an angle between 85 and 90 degrees.

[0008] Preferably, the clamping and shearing unit further includes an adjustment structure configured to precisely adjust the lateral spacing between the shearing edge and the cutting blade.

[0009] Preferably, the bottom of the clamping member includes: A rigid pressure strip close to the shear plate; and An elastic pressure strip located away from the shear plate.

[0010] Preferably, the shear plate is made of a material selected from the group consisting of hard materials including tungsten steel and ceramics.

[0011] Preferably, the cutting unit further includes: Mounting rack; A first motor, which is coupled to the cutting blade; A second motor is configured to drive the first motor and the cutting blade to reciprocate along the cutting path.

[0012] Preferably, the device further includes a chip removal structure comprising: a first chip removal box for collecting chips, which is mounted on the frame; and a second chip removal box for collecting burrs, which is mounted on the mounting bracket of the cutting unit.

[0013] Preferably, the device further includes a workpiece positioning structure configured to precisely position the workpiece at a position perpendicular to the cutting path before cutting.

[0014] Preferably, the workpiece positioning structure includes: The first limiting plate and the opposite second limiting plate are used to limit the width of the workpiece and perform initial positioning; and The pusher is used to push the workpiece toward the first limiting plate to complete the final positioning.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses an aluminum cutting device for mobile phone case production. This device replaces the traditional clamping structure with a clamping and shearing unit. While clamping the workpiece, the cooperation between the shearing plate and the cutting blade—that is, the shearing edges of the cutting blade and the shearing plate forming a scissor-like structure—allows the burrs on the workpiece edges to be sheared simultaneously with the cutting blade. The clamping and shearing unit simplifies the production process, eliminating the need for a separate deburring step and the required handling and clamping time, thus improving overall production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an aluminum cutting device provided in an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of a cutting device provided in an embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of a cutting device provided in an embodiment of the present invention; Figure 4 This is a partial structural schematic diagram of a cutting device provided in an embodiment of the present invention; Figure 5 for Figure 4 Enlarged view of part A; Figure 6 This is a schematic diagram of the structure of the cutting unit provided in an embodiment of the present invention.

[0017] Key component symbols: 10-Frame; 20-Cutting unit; 21-Mounting bracket; 22-First motor; 23-Cutting blade; 24-Second motor; 25-Slide table; 30-Pressure and shearing unit; 31-Pressure component; 311-Rigid pressure bar; 312-Elastic pressure bar; 32-Shearing plate; 321-Shearing edge; 322-Bottom surface; 323-Side surface; 40-Adjustment structure; 50-Positioning structure; 51-First limiting plate; 52-Second limiting plate; 53-Pushing component; 60-Chip removal structure; 61-First chip removal box; 62-Second chip removal box; 70-Workpiece. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0020] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0021] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0022] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0023] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0024] Example Because of the good ductility of aluminum, the thin aluminum layer is not rigid when the cutting blade is about to cut the aluminum material. As the cutting blade moves, the aluminum layer will be torn instead of cut off, and the torn material layer will form burrs / rough edges.

[0025] Therefore, this application provides an aluminum cutting device for mobile phone case production, with reference to... Figure 1 The entire unit is built on a high-rigidity frame 10. The frame 10 is typically welded or cast from heavy steel to ensure stable operation of the device.

[0026] The aluminum cutting device includes a cutting unit 20 and a clamping and shearing unit 30.

[0027] The cutting unit 20 is responsible for performing the cutting action on the aluminum workpiece 70. Figure 1 and Figure 6 In this embodiment, the cutting unit 20 includes a mounting bracket 21 fixed to the frame 10. A second motor 24, which can be a servo motor or a stepper motor, is fixedly mounted on the mounting bracket 21. The second motor 24 is connected to a ball screw via a coupling and is used to drive a slide table 25 that can slide on a linear guide rail of the mounting bracket 21. (Refer to...) Figure 1 The first motor 22 of the cutting unit 20 is mounted on the movable slide 25. The output shaft of the first motor 22 is directly coupled to a high-speed steel or carbide-embedded cutting blade 23. When the equipment is working, the first motor 22 drives the cutting blade 23 to rotate at high speed, providing cutting force; at the same time, the second motor 24 drives the entire slide 25 (along with the first motor 22 and the cutting blade 23 on it) to reciprocate linearly along a preset cutting path, thereby completing the transverse cutting of the workpiece 70. This dual-motor drive structure achieves decoupled control of the cutting rotation motion and the feed motion, ensuring the smoothness and speed controllability of the cutting process.

[0028] Working in conjunction with the cutting unit 20 is the clamping and shearing unit 30. The clamping and shearing unit 30 integrates both workpiece clamping and burr shearing functions. (Refer to...) Figure 2-4 It includes a pair of clamping elements 31, such as two cylinders or electric cylinders, which are symmetrically mounted on the frame 10 on both sides of the cutting path traversed by the cutting blade 23. When the workpiece 70 is positioned, the pair of clamping elements 31 move downward synchronously, applying sufficient pressure to the workpiece 70 to firmly fix it on the worktable and prevent it from shifting or vibrating during the cutting process.

[0029] In one embodiment of this utility model, a shearing plate 32 is installed at the lower end of each clamping member 31. The inner sides of these two shearing plates 32, i.e., the sides facing the cutting blade 23, form a sharp shearing edge 321. (Refer to...) Figure 5 When the clamping member 31 presses down, the two shearing edges 321 will adhere tightly to the upper surfaces of both sides of the cutting line on the workpiece 70 with a very small gap. The distance between the shearing edges 321 and the cutting blade 230 is generally controlled at 0.02mm, ensuring the shearing burr effect while allowing the cutting blade 230 to pass smoothly. In cross-section, each shearing plate 32 includes a horizontal bottom surface 322 and a nearly vertical side surface 323. The bottom surface 322 is designed as a smooth plane to smoothly contact and press against the upper surface of the workpiece 70, avoiding indentations. The side surface 323 intersects with the bottom surface 322 to form the shearing edges 321.

[0030] In one embodiment of this utility model, combined with Figure 4 and Figure 5 To achieve better shearing results, the angle between the side surface 323 and the bottom surface 322 is precisely controlled within an acute angle range greater than 85 degrees but less than 90 degrees. This angle design creates a sufficiently sharp shearing edge while ensuring its strength. Simultaneously, the side surface 323 is tilted away from the cutting blade 23, thus avoiding it and allowing the cutting blade 23 to pass more smoothly through the two shearing plates 32.

[0031] As the cutting blade 23 rotates at high speed and feeds laterally through the workpiece 70, its cutting edge causes upward burrs and fringes to form on the upper edge of the workpiece 70 at the moment of material separation. However, because the shearing edge 321 of the shearing plate 32 is pressed tightly against this position with enormous pressure, these newly formed burrs immediately collide with the sharp shearing edge 321 and are instantly sheared off cleanly under the combined action of the cutting force and the clamping force. The shearing process occurs synchronously with the cutting action, achieving the effect of deburring while cutting.

[0032] In one embodiment of this utility model, the material of the shearing plate 32 is preferably a material with extremely high hardness and wear resistance, such as tungsten steel or special industrial ceramics, to ensure that it can remain sharp and effectively resist wear during long-term use.

[0033] To optimize the shearing effect of this device, refer to Figure 2 and Figure 3 The clamping and shearing unit 30 is also equipped with an adjustment structure 40. This adjustment structure 40 can be a fine-tuning screw installed between the clamping member 31 and the shearing plate 32. The user can adjust the distance between the two shearing plates 32 by adjusting the fine-tuning screw, that is, adjust the lateral gap between the shearing edge 321 and the side of the cutting blade 23 to ensure the shearing quality.

[0034] In addition, to protect workpiece 70, refer to Figure 2 and Figure 3 At the bottom of each clamping member 31, in addition to the shearing plate 32, two different clamping strips are provided. One is a rigid clamping strip 311 made of metal, close to the shearing plate 32, to ensure that the workpiece 70 does not undergo local deformation when subjected to huge shearing forces. The other is an elastic clamping strip 312 made of elastic materials such as polyurethane or industrial rubber, away from the shearing plate 32. The elastic clamping strip clamps the rest of the workpiece 70 in a gentler manner, so that the vibration of the workpiece 70 during cutting is absorbed, further ensuring the cutting accuracy of the workpiece 70.

[0035] To ensure the accuracy of the cutting dimensions, the device is also equipped with a positioning structure 50. (Refer to...) Figure 2 and Figure 3 The positioning structure 50 includes a fixed first limiting plate 51 and an adjustable second limiting plate 52, which together form a channel for accommodating the workpiece 70. The position of the second limiting plate 52 determines the maximum width of the workpiece 70. When the workpiece 70 is placed into the channel, a cylinder-driven pusher 53 pushes the workpiece 70 from the side towards the first limiting plate 51 until they are in contact. This ensures that each workpiece 70 to be processed is positioned perpendicular to the cutting path, thereby guaranteeing cutting quality.

[0036] In one embodiment of this utility model, the device is further designed with a chip removal structure 60 to collect waste generated during the processing. (See also...) Figure 6 The first chip box 61 is placed directly below the cutting area under the frame 10 to collect the large amount of aluminum chips and dust generated during the cutting process. The second chip box 62 is mounted on the mounting bracket 21 to collect the small and sharp burrs that are cut off.

[0037] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. An aluminum cutting device for mobile phone case production, characterized in that, include: frame; A cutting unit, which is mounted on the frame, includes a cutting blade that moves along the cutting path; A clamping and shearing unit configured to hold the workpiece in place during a cutting operation and to shear burrs produced by the cutting blade, the clamping and shearing unit comprising: A pair of clamping elements are symmetrically arranged on both sides of the cutting path; A pair of shearing plates are respectively mounted on the pair of clamping members, and each shearing plate has a shearing edge facing the cutting blade; The cutting motion of the cutting blade works in conjunction with the shearing edge of the shearing plate to remove burrs from the edges of the workpiece while cutting it.

2. The aluminum cutting device for mobile phone case production according to claim 1, characterized in that, Each of the shearing plates includes a bottom surface for contacting the workpiece and a side surface forming the shearing edge, wherein the side surface intersects the bottom surface at an angle between 85 and 90 degrees.

3. The aluminum cutting device for mobile phone case production according to claim 1, characterized in that, The clamping and shearing unit also includes an adjustment structure configured to precisely adjust the lateral spacing between the shearing edge and the cutting blade.

4. The aluminum cutting device for mobile phone case production according to claim 1, characterized in that, The bottom of the clamping member includes: A rigid pressure strip close to the shear plate; and An elastic pressure strip located away from the shear plate.

5. The aluminum cutting device for mobile phone case production according to claim 1, characterized in that, The shear plate is made of a material selected from the group of hard materials including tungsten steel and ceramics.

6. The aluminum cutting device for mobile phone case production according to claim 1, characterized in that, The cutting unit further includes: Mounting rack; A first motor, which is coupled to the cutting blade; A second motor is configured to drive the first motor and the cutting blade to reciprocate along the cutting path.

7. The aluminum cutting device for mobile phone case production according to claim 6, characterized in that, The device also includes a chip removal structure comprising: a first chip removal box for collecting chips, which is mounted on the frame; and a second chip removal box for collecting burrs, which is mounted on the mounting bracket of the cutting unit.

8. The aluminum cutting device for mobile phone case production according to claim 1, characterized in that, The device also includes a workpiece positioning structure configured to position the workpiece perpendicular to the cutting path prior to cutting.

9. The aluminum cutting device for mobile phone case production according to claim 8, characterized in that, The workpiece positioning structure includes: The first limiting plate and the opposite second limiting plate are used to limit the width of the workpiece and perform initial positioning; and The pusher is used to push the workpiece toward the first limiting plate to complete the final positioning.

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