Depth-limiting cutting head

By adding a handheld stabilizing device to the free end of the cutting head body, the problem of instability when using the cutting head on a handheld device is solved, resulting in a more stable cutting process and better control.

CN223492189UActive Publication Date: 2025-10-31DONGGUAN XINCHENGFA TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421033262.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-13
Publication Date
2025-10-31
Estimated Expiration
2034-05-13

AI Technical Summary

Technical Problem

Existing cutting heads are unstable when used on handheld devices, easily damaging glass or LCD screens, and are difficult to control the cutting direction.

Method used

A handheld stabilizing device, including a bearing or an embedded bearing, is added to the free end of the cutting head body and connected to the body via a clamping plate to provide additional stability support.

Benefits of technology

It improves the stability of the cutting process and the control of the cutting direction, reducing the risk of damage to glass or LCD screens.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a depth limiting cutting head which comprises a main body and a clamping piece, the main body and the clamping piece are installed together, and a handheld stabilizing device is installed at the free end of the clamping piece. According to the cutting head, the handheld stabilizing device is additionally arranged at the free end of the cutting head body, when the cutting head is used on handheld equipment, the handheld cutting equipment can be held by one hand, the handheld stabilizing device is held by the other hand, and therefore the stability and the cutting direction of the cutting head are subjected to auxiliary positioning, and the cutting head is more stable in the cutting process.
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Description

Technical Field

[0001] This utility model discloses a cutting head, particularly a depth-limiting cutting head, belonging to the technical field of electronic product repair equipment accessories. Background Technology

[0002] Mobile phones, tablets, and other electronic devices are becoming increasingly widespread in people's lives, with almost everyone owning one or even several. Damage to mobile phones or tablets is inevitable during use, especially to the screen, which is easily damaged by accidental drops or pressure. Screen damage to mobile phones or tablets is usually due to damage to the protective glass cover surrounding the LCD screen. When repairing a damaged screen, the glass cover needs to be removed and replaced with a new one. Because the glass cover is relatively large, directly prying it off can easily damage the LCD screen, causing unnecessary loss. Therefore, when removing the glass cover, it is usually necessary to cut it into small pieces using a cutting machine and then remove it piece by piece.

[0003] The depth-limiting cutting head is an essential accessory for cutting machines and a key component that determines the quality of the cutting. Due to certain limitations, when a cutting machine is unavailable, cutting can only be performed by attaching the cutting head to a handheld device (such as a small electric drill). However, when using the cutting head on a handheld device, it is easy to fail to cut due to instability, or it may damage the glass or LCD screen during the cutting process. Summary of the Invention

[0004] To address the inconvenience of using existing cutting heads in handheld cutting devices, this invention provides a depth-limiting cutting head with a handheld stabilizing device added to the free end of the cutting head body. When used on a handheld device, one hand can hold the handheld cutting device while the other hand supports the handheld stabilizing device, thereby assisting in the stability and positioning of the cutting head and the cutting direction, making it more stable during the cutting process.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a depth-limiting cutting head, the cutting head includes a main body and a clamping plate, the main body and the clamping plate are installed together, and a handheld stabilizing device is installed on the free end of the clamping plate.

[0006] The technical solution adopted by this utility model to solve its technical problem further includes:

[0007] The handheld stabilizing device uses a bearing, which is directly mounted on the free end of the clamping plate; or a mounting post is provided on the free end of the clamping plate, and the bearing is mounted on the mounting post.

[0008] The clamping piece has a mounting hole at its free end, an embedded bearing is installed in the mounting hole, and a handheld stabilizing device is inserted into the center hole of the embedded bearing.

[0009] The main body is provided with a connection structure for connecting to a cutting machine or handheld device.

[0010] The connection structure is a mounting hole, and a fixing screw hole is opened on the side of the main body corresponding to the mounting hole position, and a fixing screw is installed in the fixing screw hole.

[0011] A gasket is installed between the main body and the clamping plate.

[0012] The clamping plate is fixedly provided with a threaded post, and a threaded hole is opened at the corresponding position on the main body, and the threaded post is inserted into the threaded hole.

[0013] A guide is provided around the threaded hole.

[0014] The outer surface of the main body and / or clamping piece is arc-shaped or inclined.

[0015] The beneficial effects of this utility model are: a handheld stabilizing device is added to the free end of the cutting head body. When it is used on a handheld device, one hand can hold the handheld cutting device and the other hand can hold the handheld stabilizing device, thereby assisting in the positioning of the cutting head's stability and cutting direction, making it more stable during the cutting process.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model.

[0018] Figure 2 This is a schematic diagram of the exploded state structure of Embodiment 1 of this utility model.

[0019] Figure 3 This is a schematic diagram of the exploded state structure of Embodiment 2 of this utility model.

[0020] Figure 4 This is a schematic diagram of the exploded state structure of Embodiment 3 of this utility model.

[0021] Figure 5 This is a schematic diagram of the second usage state of Embodiment 3 of this utility model.

[0022] Figure 6 This is a schematic diagram of the exploded state structure from another perspective of Embodiment 3 of this utility model.

[0023] Figure 7 This is a front view of the combined state of Embodiment 3 of this utility model.

[0024] Figure 8 This is a schematic diagram of the exploded state structure of Embodiment 4 of this utility model.

[0025] In the diagram, 1-main body, 2-shim, 3-connecting end, 4-fixing screw hole, 5-clamping plate, 6-free end, 7-mounting post, 8-handheld stabilizer, 9-mounting hole, 10-embedded bearing, 11-threaded post, 12-threaded hole, 13-guide, 14-cutting plate. Detailed Implementation

[0026] This embodiment is a preferred embodiment of the present invention. All other embodiments that are the same as or similar to this embodiment in principle and basic structure are within the protection scope of the present invention.

[0027] Please refer to the appendix for details. Figure 1 To be continued Figure 8 This utility model mainly includes a main body 1 and a clamping piece 5, which are installed together. A cutting blade 14 is installed between the main body 1 and the clamping piece 5 for cutting LCD screen glass. One end of the main body 1 is used to connect to a cutting machine or handheld cutting device, which is defined as the connecting end 3 in this utility model. The other end is in a free state, which is defined as the free end 6 in this utility model. Preferably, the main body 1 and the connecting end 3 are integrally formed, and the clamping piece 5 and the free end 6 are integrally formed. In specific implementation, they can also be set separately, but an assembly step is required to assemble the main body 1 and the connecting end 3 together, and assemble the clamping piece 5 and the free end 6 together.

[0028] In this embodiment, the main body 1 is provided with a connection structure for connecting to a cutting machine or handheld device. The connection structure is preferably a mounting hole, which is simple and easy to install. However, other connection structures can also be used, such as external threads, internal threads, keyways, or grippers. In this embodiment, a fixing screw hole 4 is provided on the side of the main body 1 corresponding to the mounting hole position. A fixing screw (not shown in the figure) is provided in the fixing screw hole 4, which can be used to fix the present invention onto the spindle of the cutting machine or handheld device.

[0029] In this embodiment, a gasket 2 is installed between the main body 1 and the clamping piece 5. The gasket 2 is annular. The cutting piece 14 is disposed between the gasket 2 and the clamping piece 5. Alternatively, the cutting piece 14 can also be disposed between the main body 1 and the gasket 2, or it can be disposed simultaneously between the gasket 2 and the clamping piece 5 and between the main body 1 and the gasket 2. In this embodiment, gaskets 2 of different diameters can be replaced as needed. Since the diameter of the cutting piece 14 is a standard diameter, replacing gaskets 2 of different diameters can control the cutting depth of the cutting piece 14. Preferably, the diameter of the gasket 2 is greater than or equal to the diameter of the main body 1 and the clamping piece 5, and the diameter of the gasket 2 is smaller than the diameter of the cutting piece 14 to ensure that the cutting piece 14 can smoothly cut the liquid crystal display glass. In specific implementation, the diameter of the gasket 2 can also be smaller than the diameter of the main body 1 and the clamping piece 5. In this case, the gasket 2 basically does not limit the cutting depth of the cutting piece 14. The structure of Embodiment 1 is a structure without the gasket 2. In other embodiments, the gasket 2 is added.

[0030] In this embodiment, the clamping piece 5 is preferably connected to the main body via a reverse thread. However, other conventional connection methods can also be used in practice. A threaded post 11 is fixedly mounted on the clamping piece 5, and a threaded hole 12 is correspondingly provided on the main body 1. The threaded post 11 is inserted into the threaded hole 12 to achieve the installation of the main body 1 and the clamping piece 5. Alternatively, the threaded post 11 can be fixedly mounted on the main body 1, and the threaded hole 12 can be correspondingly provided on the clamping piece 5, achieving the same effect. In this embodiment, a guide 13 is provided around the threaded hole 12 to facilitate the insertion of the threaded post 11.

[0031] In this embodiment, the outer surface of the main body 1 and / or the clamping piece 5 is arc-shaped or beveled, which can increase its strength, making it more secure and durable, and also make it more aesthetically pleasing.

[0032] In this embodiment, a protruding ridge is provided on the side of the clamping piece 5 near the free end 6, which makes it easier to assemble and disassemble the clamping piece 5. The handheld stabilizing device 8 is installed on the free end 6 of the clamping piece 5. The handheld stabilizing device 8 can be implemented in various ways, and several preferred structures will be described below.

[0033] Example 2: In this example, the handheld stabilizing device 8 uses a bearing, which is directly mounted on the free end 6 of the clamping plate 5. During use, the user can hold the handheld device with one hand and the outer side of the bearing with the other for auxiliary stabilization. Preferably, the outer diameter of the bearing is less than or equal to the outer diameter of the clamping plate 5 to avoid affecting its use. The width occupied by the bearing is preferably half or less of the free end 6 to facilitate the assembly and disassembly of the clamping plate 5.

[0034] Example 3: In this example, the handheld stabilizing device 8 uses a bearing. One end of the free end 6 of the clamping plate 5 is machined to produce a section of mounting post 7 for mounting the bearing. The bearing is mounted on the mounting post 7. Other limiting structures are the same as in Example 2, and will not be described again here. The structure of Example 3 allows for more flexible selection of bearings.

[0035] Example 4: In this example, a mounting hole 9 is machined at the free end 6 of the clamping piece 5. An embedded bearing 10 is embedded in the mounting hole 9, and a hand handle (which serves as a handheld stabilizing device 8) is inserted into the center hole of the embedded bearing 10. During use, the user can hold the handheld device with one hand and the hand handle with the other hand to assist in stabilization. The shape of the hand handle can be freely selected according to actual needs.

[0036] In Examples 2 and 3, a hand handle can be fitted onto the outside of the bearing, or it can be left unfitted; this does not affect its use.

[0037] This invention adds a handheld stabilizing device to the free end of the cutting head body. When used on a handheld device, one hand can hold the handheld cutting device and the other hand can hold the handheld stabilizing device, thereby assisting in the positioning of the cutting head's stability and cutting direction, making it more stable during the cutting process.

Claims

1. A depth-limiting cutting head, characterized in that: The cutting head includes a main body (1) and a clamping plate (5). The main body (1) and the clamping plate (5) are installed together. A handheld stabilizing device (8) is installed on the free end (6) of the clamping plate (5). A gasket (2) is installed between the main body (1) and the clamping plate (5). A threaded post (11) is fixedly provided on the clamping plate (5). A threaded hole (12) is opened at the corresponding position on the main body (1). The threaded post (11) is inserted into the threaded hole (12). A guide (13) is opened around the threaded hole (12).

2. The depth-limiting cutting head according to claim 1, characterized in that: The handheld stabilizing device (8) uses a bearing, which is directly mounted on the free end (6) of the clamping plate (5); or a mounting post (7) is provided on the free end (6) of the clamping plate (5), and the bearing is mounted on the mounting post (7).

3. The depth-limiting cutting head according to claim 1, characterized in that: The clamping piece (5) has a mounting hole (9) at the free end (6) of the clamping piece (5). An embedded bearing (10) is installed in the mounting hole (9). A handheld stabilizing device (8) is inserted in the center hole of the embedded bearing (10).

4. The depth-limiting cutting head according to claim 1, characterized in that: The main body (1) is provided with a connection structure for connecting to a cutting machine or handheld device.

5. The depth-limiting cutting head according to claim 4, characterized in that: The connection structure is a mounting hole. A fixing screw hole (4) is provided on the side of the main body (1) at the position corresponding to the mounting hole. A fixing screw is provided in the fixing screw hole (4).

6. The depth-limiting cutting head according to claim 1, characterized in that: The outer surfaces of the main body (1) and / or clamping piece (5) are arc-shaped or inclined.