Stepped milling cutter for processing mobile phone shell

Abstract

The utility model belongs to the technical field of stepped milling cutters, particularly relates to a stepped milling cutter for processing a mobile phone shell, and aims to solve the problems that cutting edge parts are abraded after the milling cutter is used for a long time, the abraded cutting edge parts need to be replaced, and the cutting edge parts are fixed and integrated in sequence due to the fact that the cutting edge parts are connected in sequence. In order to solve the problem that the cost of a user is increased due to the fact that a first cutter rod is installed at the upper end of the first cutter handle, a cutter rod installation block is further fixed to the connecting position of the first cutter handle and the first cutter rod, and a first chip groove is formed in the upper portion of the first cutter rod. Blade limiting holes are evenly formed in the surface of one side of the first chip groove, a first blade, a second blade, a third blade and a fourth blade are installed outside the blade limiting holes respectively, and blade fixing holes are formed outside the first blade, the second blade, the third blade and the fourth blade. According to the utility model, the replacement efficiency and the processing efficiency are improved.

Description

Technical Field

[0001] The utility model relates to a milling cutter, in particular to a stepped milling cutter for processing a mobile phone shell, belonging to the technical field of stepped milling cutters. Background Art

[0002] With the continuous development of the smartphone market, the design of mobile phone cases is becoming more and more complex, and the requirements for processing accuracy are also becoming higher and higher.

[0003] In the prior art, in order to realize the milling of holes and edges of products of different specifications, a stepped milling cutter is usually used. However, the stepped milling cutter of the existing structure usually has the problem of inconvenient chip guiding, which affects the processing efficiency and product quality.

[0004] A stepped milling cutter with announcement number CN220259658U includes a shank and a blade. The blade includes a plurality of blade portions which are connected in sequence and whose outer diameters decrease in sequence. The utility model stepped milling cutter can solve the problem of inconvenient chip guiding of the stepped milling cutter to a certain extent.

[0005] In the above technical solution, the ladder milling cutter can solve the problem of inconvenient chip guiding of the step milling cutter to a certain extent, but the blade will be worn after long-term use, and the worn blade needs to be replaced. Since the blade and the blade parts are connected in sequence with a fixed integrated structure, they need to be replaced together during replacement, which increases the user cost. For this reason, we provide a step milling cutter for processing mobile phone shells. Utility Model Content

[0006] The utility model aims to solve the problem that the above-mentioned milling cutter may cause wear of the blade portion after long-term use, and the worn blade portion needs to be replaced. Since the blade and the blade portion adopt a fixed integrated structure connected in sequence, they need to be replaced together during replacement, thereby increasing the user cost. A stepped milling cutter for processing mobile phone shells is provided to solve the problem that the worn blade portion needs to be replaced because the blade and the blade portion adopt a fixed integrated structure connected in sequence.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: a stepped milling cutter for processing a mobile phone shell, comprising a first tool handle, a first tool rod is installed on the upper end of the first tool handle, a tool rod mounting block is fixed at the connection between the first tool handle and the first tool rod, a first chip removal groove is opened above the first tool rod, and a blade limiting hole is evenly opened on one side surface of the first chip removal groove;

[0008] The first blade, the second blade, the third blade and the fourth blade are respectively installed on the outside of the blade limiting hole, the first blade, the second blade, the third blade and the fourth blade are opened on the outside with a blade fixing hole, the internal threads of the blade fixing hole and the blade limiting hole are installed with a blade fixing screw, the fourth blade is located above the third blade, the third blade is located above the second blade, the second blade is located above the first blade, and the first blade, the second blade, the third blade and the fourth blade are all fixedly installed on the surface of the first chip groove.

[0009] As a further solution of the utility model: the arbor mounting block is fixed to the lower end of the first arbor, and an arbor limiting hole is provided on the outer periphery of the arbor mounting block, and the arbor mounting block and the first mounting groove are movably connected.

[0010] As a further solution of the utility model: a spring limiting groove is provided on the central surface of the bottom end of the arbor mounting block.

[0011] As a further solution of the utility model: a handle clamping surface is provided on the outer periphery of the first handle, and a handle fixing screw is threadedly installed on the upper outer portion of the first handle.

[0012] As a further solution of the utility model: a screw installation hole is opened on the outside of the first handle, and the handle fixing screw is installed inside the screw installation hole.

[0013] As a further solution of the utility model: a first installation groove is provided at the connection between the first knife handle and the first knife rod, and the first installation groove is provided on the central surface of the upper end of the first knife handle.

[0014] As a further solution of the utility model: a first spring is installed inside the first installation groove.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model fixes the first blade, the second blade, the third blade and the fourth blade on the first chip groove respectively through the cooperation between the blade fixing screw and the blade limiting hole, and the first blade, the second blade, the third blade and the fourth blade can be easily installed and removed independently by unscrewing the blade fixing screw. When a blade is worn, only the blade needs to be replaced instead of the entire milling cutter, thereby reducing the use cost, making the replacement process simpler and faster, and improving the replacement efficiency and processing efficiency;

[0017] 2. The utility model provides a stable elastic force through the first spring, so that the tool bar maintains a stable vibration frequency and amplitude during the processing, thereby improving the processing accuracy. In addition, the first blade, the second blade, the third blade and the fourth blade can complete multi-layer cutting in one processing process, thereby reducing the processing time and the frequency of equipment replacement, and improving the processing efficiency.

[0018] 3. The tool bar mounting block of the utility model is connected to the first tool bar through the tool bar limiting hole, and the first spring is installed in the first mounting groove, so that the entire milling cutter structure is stable, thereby improving the quality of mobile phone housing processing, and the first chip groove can effectively discharge the cutting chips generated during the processing to prevent accumulation and blockage, thereby maintaining smooth processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the blade, the blade limiting hole and the blade fixing hole of the utility model;

[0021] Figure 3 This is a schematic diagram of the tool bar mounting block, the tool bar limiting hole, the first mounting groove and the first spring structure of the utility model;

[0022] Figure 4 It is a schematic cross-sectional structural diagram of the first knife handle and the first knife rod of the utility model.

[0023] In the figure: 1. first tool handle; 2. tool handle clamping surface; 3. tool handle fixing screw; 4. first tool rod; 5. first chip groove; 6. first blade; 7. second blade; 8. third blade; 9. fourth blade; 10. blade fixing screw; 11. blade limiting hole; 12. blade fixing hole; 13. tool rod mounting block; 14. tool rod limiting hole; 15. first mounting slot; 16. first spring; 17. screw mounting hole; 18. spring limiting slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0025] like Figures 1 to 4As shown, a stepped milling cutter for processing a mobile phone shell comprises a first tool handle 1, a first tool rod 4 is installed on the upper end of the first tool handle 1, a tool rod mounting block 13 is fixed at the connection between the first tool handle 1 and the first tool rod 4, a first chip removal groove 5 is provided above the first tool rod 4, a blade limiting hole 11 is evenly provided on one side surface of the first chip removal groove 5, a first blade 6, a second blade 7, a third blade 8 and a fourth blade 9 are respectively installed outside the blade limiting hole 11, the first blade 6, the second blade 7, the third blade 8 and the fourth blade 9 can complete multi-layer cutting in one processing process, reduce the processing time and the frequency of equipment replacement, and improve the processing efficiency, the first blade 6, the second blade 7, the third blade 8 and the fourth blade 9 are provided with a blade fixing hole 12 outside, and the blade fixing hole 12 and the blade limiting hole 11 are respectively installed outside the blade limiting hole 11. The internal thread is installed with a blade fixing screw 10, the fourth blade 9 is located above the third blade 8, the third blade 8 is located above the second blade 7, and the second blade 7 is located above the first blade 6. The first blade 6, the second blade 7, the third blade 8 and the fourth blade 9 are all fixedly installed on the surface of the first chip groove 5. The blade fixing screw 10 and the blade limiting hole 11 cooperate with each other to fix the first blade 6, the second blade 7, the third blade 8 and the fourth blade 9 on the first chip groove 5 respectively. Unscrewing the blade fixing screw 10 facilitates the independent installation and disassembly of the first blade 6, the second blade 7, the third blade 8 and the fourth blade 9. When a blade is worn, only the blade needs to be replaced instead of the entire milling cutter, thereby reducing the cost of use, making the replacement process simpler and faster, and improving the replacement efficiency and processing efficiency. Embodiment 2

[0026] In addition to all the technical features of the first embodiment, the present embodiment further includes: a shank mounting block 13 is fixed to the lower end of the first shank 4, a shank limiting hole 14 is provided on the periphery of the shank mounting block 13, the shank mounting block 13 and the first mounting groove 15 are movably connected, a spring limiting groove 18 is provided on the bottom center surface of the shank mounting block 13, a shank clamping surface 2 is provided on the periphery of the first shank 1, a shank fixing screw 3 is threadedly installed on the upper outer portion of the first shank 1, a screw mounting hole 17 is provided on the outer portion of the first shank 1, the shank fixing screw 3 is installed inside the screw mounting hole 17, and a first mounting hole 17 is provided at the connection between the first shank 1 and the first shank 4. The first mounting groove 15 is provided on the upper center surface of the first tool handle 1. A first spring 16 is installed inside the first mounting groove 15. The first spring 16 provides a stable elastic force, so that the tool bar maintains a stable vibration frequency and amplitude during the processing, thereby improving the processing accuracy. The tool bar mounting block 13 is connected to the first tool bar 4 through the tool bar limiting hole 14, and the first spring 16 is installed in the first mounting groove 15, so that the entire milling cutter structure is stable, thereby improving the quality of the mobile phone shell processing, and the first chip removal groove 5 can effectively discharge the cutting chips generated during the processing to prevent accumulation and blockage, thereby maintaining smooth processing.

[0027] Working principle:

[0028] First, fix the tool holder clamping surface 2 on the machine tool, then insert the tool bar mounting block 13 into the first mounting groove 15, and then screw the tool holder fixing screw 3 into the tool bar limiting hole 14 and the screw mounting hole 17 to ensure a firm connection between the first tool bar 4 and the first tool holder 1;

[0029] Secondly, during the processing, the first tool handle 1 drives the first tool rod 4 and the first blade 6, the second blade 7, the third blade 8 and the fourth blade 9 installed on the first tool rod 4 to rotate. Since the multi-layer blades are provided, multi-layer cutting can be completed in one processing process, which significantly reduces the processing time and the frequency of equipment replacement, thereby improving the processing efficiency. The blade fixing hole 12 and the blade limiting hole 11 are threadedly connected by the blade fixing screw 10, which ensures the stability and accuracy of the blade during the processing. When a blade is worn, it only needs to unscrew the corresponding blade fixing screw 10 to easily remove the blade from the first chip groove 5 and replace it with a new blade, which makes the blade replacement process simpler and faster for the staff, reduces the use cost, and improves the replacement efficiency and processing efficiency.

[0030] Then, the arbor mounting block 13 is connected to the first arbor 4 through the arbor limiting hole 14, so that the two ends of the first spring 16 are respectively against the first mounting groove 15 and the spring limiting groove 18, so that the elastic force of the first spring 16 can maintain a stable vibration frequency and amplitude during the machining of the first shank 1 and the movable first arbor 4, thereby improving the machining accuracy;

[0031] Finally, the first chip discharge groove 5 can effectively discharge the cutting chips generated during the machining process, preventing the cutting chips from accumulating and blocking on the blade, thereby maintaining smooth machining.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stepped milling cutter for processing a mobile phone housing, comprising a first tool holder (1), characterized in that: A first tool bar (4) is mounted on the upper end of the first tool handle (1); a tool bar mounting block (13) is fixed at the connection between the first tool handle (1) and the first tool bar (4); a first chip removal groove (5) is provided above the first tool bar (4); and a blade limiting hole (11) is evenly provided on one side surface of the first chip removal groove (5); The first blade (6), the second blade (7), the third blade (8) and the fourth blade (9) are respectively installed on the outside of the blade limiting hole (11); the first blade (6), the second blade (7), the third blade (8) and the fourth blade (9) are provided with a blade fixing hole (12) on the outside; the blade fixing screw (10) is installed on the internal threads of the blade fixing hole (12) and the blade limiting hole (11); the fourth blade (9) is located above the third blade (8); the third blade (8) is located above the second blade (7); the second blade (7) is located above the first blade (6); the first blade (6), the second blade (7), the third blade (8) and the fourth blade (9) are all fixedly installed on the surface of the first chip groove (5).

2. A stepped milling cutter for processing a mobile phone housing according to claim 1, characterized in that: The knife bar mounting block (13) is fixed to the lower end of the first knife bar (4), a knife bar limiting hole (14) is provided on the outer periphery of the knife bar mounting block (13), and the knife bar mounting block (13) and the first mounting groove (15) are movably connected.

3. A stepped milling cutter for processing a mobile phone housing according to claim 2, characterized in that: A spring limiting groove (18) is provided on the central surface of the bottom end of the knife rod mounting block (13).

4. A stepped milling cutter for processing a mobile phone housing according to claim 1, characterized in that: A handle clamping surface (2) is provided on the outer periphery of the first handle (1), and a handle fixing screw (3) is threadedly mounted on the upper outer portion of the first handle (1).

5. A stepped milling cutter for processing a mobile phone housing according to claim 4, characterized in that: A screw mounting hole (17) is provided on the outside of the first knife handle (1), and the knife handle fixing screw (3) is installed inside the screw mounting hole (17).

6. A stepped milling cutter for processing a mobile phone housing according to claim 1, characterized in that: A first mounting groove (15) is provided at the connection between the first knife handle (1) and the first knife rod (4), and the first mounting groove (15) is provided on the central surface of the upper end of the first knife handle (1).

7. A stepped milling cutter for processing a mobile phone housing according to claim 6, characterized in that: A first spring (16) is installed inside the first installation groove (15).

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