Hard alloy micro milling cutter for mobile phone frame machining

Abstract

The utility model belongs to the technical field of miniature milling cutters, particularly relates to a hard alloy miniature milling cutter for processing based on a mobile phone frame, and aims to solve the problem that the cost of a user is increased due to the fact that a milling cutter in the prior art needs to be replaced when a cutting edge is abraded and a cutter head needs to be replaced together when the cutting edge is replaced. Comprising a first cutter handle, a first cutter bar is installed at the front end of the first cutter handle in a threaded mode, a cutter head is fixedly connected to the outer wall of the front end of the first cutter bar, a cutting cutter block is installed at the front end of the cutter head in a threaded mode, and a cutter block installation groove is formed in the joint of the cutter head and the cutting cutter block and located in the top end of the cutter head. And a cutter block mounting block is fixed at the joint of the cutting cutter block and the cutter head, and is positioned at the rear end of the cutting cutter block. According to the utility model, the cutter block is fixed by the cutter block limiting screw through the first screw mounting hole, so that the connection stability is enhanced, and meanwhile, the replacement of the cutter block is also facilitated by the connection mode.

Description

Technical Field

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

[0002] With the rapid development of smartphone technology, the precision requirements of mobile phone frames are getting higher and higher. Mobile phone frames not only need to meet the requirements of strength and stability, but also need to have a delicate appearance and accurate size.

[0003] Although the existing micro milling cutters have certain cutting capabilities and are convenient for replacing the cutter head, there are some problems during long-term cutting use. First, vibration may occur at the connection between the cutter head and the handle. This vibration not only affects the processing accuracy, but may also cause damage to the cutter head and the handle, shortening the service life of the tool. Secondly, during the cutting process of the existing micro milling cutters, due to the influence of cutting force and vibration, the cutter head is prone to wear, thereby affecting the processing quality.

[0004] A superhard material micro double-edged milling cutter with announcement number CN216758312U includes a tool rod, one end of which is equipped with a tool head. The utility model can effectively reduce the vibration generated by the tool head during cutting processing through the cooperation of structures such as a slider, a slot and a spring, so that the tool head can perform cutting processing smoothly, greatly improving stability and ensuring processing quality.

[0005] In the above technical solution, the vibration generated by the cutter head can be effectively reduced during cutting through the cooperation of structures such as sliders, slots and springs. However, the blade needs to be replaced when it is worn, and the cutter head needs to be replaced together when the blade is replaced, which will increase the user's cost. For this reason, we provide a carbide micro milling cutter for processing mobile phone frames. Utility Model Content

[0006] The utility model provides a carbide micro milling cutter for processing a mobile phone frame to solve the problem that the blade needs to be replaced when it is worn, and the cutter head needs to be replaced together when the blade is replaced, which increases the cost for the user.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: a carbide micro milling cutter for processing a mobile phone frame, comprising a first tool handle, a first tool rod is threadedly installed on the front end of the first tool handle, a tool head is fixedly connected to the front end outer wall of the first tool rod, a cutting tool block is threadedly installed on the front end of the tool head, a tool block installation groove is provided at the connection between the tool head and the cutting tool block, the tool block installation groove is located at the top of the tool head, a tool block installation block is fixed at the connection between the cutting tool block and the tool head, and the tool block installation block is located at the rear end of the cutting tool block;

[0008] A cutting edge is fixedly arranged on the top of the cutting blade block, a chip removal groove is arranged on the periphery of the cutting blade block, and a first limiting hole is arranged on the periphery of the blade block mounting block.

[0009] As a further solution of the utility model: a handle clamping surface is provided on the rear end outer wall of the first handle.

[0010] As a further solution of the utility model: the outer wall of the cutter head is evenly provided with chip removal grooves, and the outer wall of the cutter head is also provided with a first screw mounting hole.

[0011] As a further solution of the utility model: a knife block limiting screw is installed in the internal thread of the first screw mounting hole.

[0012] As a further solution of the utility model: a knife bar mounting groove is provided at the connection between the first knife handle and the first knife rod, the knife bar mounting groove is located inside the first knife handle, a knife bar mounting block is fixed at the connection between the first knife rod and the first knife handle, the knife bar mounting block is located at the rear end of the first knife rod, and a second limiting hole is provided on the outer wall of the knife bar mounting block.

[0013] As a further solution of the utility model: a fixing hole is provided on the outer wall of the first tool handle, and a tool rod limiting screw is installed on the internal thread of the fixing hole.

[0014] As a further solution of the utility model: the bottom end of the knife rod installation groove is fixedly connected with a first spring, the top end of the first spring is fixedly connected with a top block, and a rubber pad is adhered to the top of the top block.

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

[0016] 1. When the blade is worn, the utility model only needs to replace the cutting block without replacing the entire cutter head, thereby significantly reducing the user's maintenance cost. The cutting block is connected to the cutter head through threads, and a stable installation is achieved through the cooperation of the cutting block mounting groove and the cutting block mounting block. The cutting block limiting screw fixes the cutting block through the first screw mounting hole, thereby enhancing the stability of the connection. At the same time, this connection method is also convenient for replacing the cutting block.

[0017] 2. The utility model can buffer the impact and vibration during the processing to a certain extent through the first spring, the top block and the rubber pad in the tool bar mounting groove, protect the blade and the tool bar from damage, and the design of the tool handle clamping surface increases the friction between the tool handle and the machine tool, improves the clamping stability, and helps to reduce shaking during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2This is a schematic diagram of the structure of the connection between the cutting blade block and the blade head of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connection between the first knife handle and the first knife rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the first knife handle of the utility model.

[0022] In the figure: 1. first tool handle; 2. first tool rod; 3. tool head; 4. cutting tool block; 5. cutting edge; 6. tool block limit screw; 7. tool handle clamping surface; 8. chip groove; 9. chip groove; 10. first screw mounting hole; 11. first limit hole; 12. tool block mounting block; 13. tool block mounting groove; 14. tool rod mounting block; 15. tool rod mounting groove; 16. first spring; 17. top block; 18. rubber pad; 19. second limit hole; 20. fixing hole; 21. tool rod limit screw. DETAILED DESCRIPTION

[0023] 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

[0024] like Figures 1 to 4As shown, a carbide micro milling cutter for processing a mobile phone frame comprises a first tool handle 1, a first tool rod 2 is threadedly installed on the front end of the first tool handle 1, a tool head 3 is fixedly connected to the front end outer wall of the first tool rod 2, a cutting tool block 4 is threadedly installed on the front end of the tool head 3, and the tool head 3 can avoid being replaced as a whole through the cooperation between the cutting tool head 3 and the cutting tool block 4, so that the cutting tool block 4 can be replaced or repaired separately, thereby reducing the overall cost, a tool block installation groove 13 is provided at the connection between the cutting tool head 3 and the cutting tool block 4, and the tool block installation groove 13 is located at the top of the cutting tool head 3, and a tool block installation block 12 is fixed at the connection between the cutting tool block 4 and the cutting tool head 3, and the tool block installation block 12 is located at the rear end of the cutting tool block 4, and the cutting tool block 4 is installed in the tool block installation groove 13 of the cutting tool head 3 through a thread, and The cutting block 4 is fixed by the tool block mounting block 12, so that the replacement of the cutting block 4 becomes simple and quick, and there is no need to perform complicated operations on the entire tool. The top of the cutting block 4 is fixedly provided with a cutting edge 5, which enables the tool to have higher cutting efficiency and precision during the processing process. The rear end outer wall of the first tool handle 1 is provided with a tool handle clamping surface 7, which is convenient for stable connection with the processing equipment to ensure stability and safety during the processing. The outer periphery of the cutting block 4 is provided with a chip withdrawal groove 9, which can facilitate and timely remove chips to prevent chip accumulation from affecting the cutting effect and tool life. The outer periphery of the tool block mounting block 12 is provided with a first limiting hole 11. Embodiment 2

[0025] In addition to all the technical features of the first embodiment, the present embodiment also includes: the outer wall of the cutter head 3 is evenly provided with a chip removal groove 8. The chip removal groove 8 evenly provided on the outer wall of the cutter head 3 helps to timely remove the waste chips generated by cutting during the processing, and avoid the waste chips from accumulating near the cutting blade block 4, thereby maintaining the smoothness of cutting and improving the processing efficiency. The outer wall of the cutter head 3 is also provided with a first screw mounting hole 10. The inner thread of the first screw mounting hole 10 is installed with a cutter block limiting screw 6. By providing the first screw mounting hole 10 on the outer wall of the cutter head 3 and installing the cutter block limiting screw 6 on the inner thread, the cutter block can be fixed and limited, and the stability and safety of the cutter block during the cutting process can be ensured. A cutter bar mounting groove 15 is provided at the connection between the first tool handle 1 and the first tool rod 2. The cutter bar mounting groove 15 is located inside the first tool handle 1. A cutter bar mounting block 14 is fixed at the connection between the first tool rod 2 and the first tool handle 1 The tool rod mounting block 14 is located at the rear end of the first tool rod 2, and a tool rod mounting groove 15 is designed at the connection between the first tool handle 1 and the first tool rod 2, and the tool rod mounting block 14 is fixed at the rear end of the first tool rod 2, so that the installation of the tool rod is more stable, and a second limiting hole 19 is opened on the outer wall of the tool rod mounting block 14, and a fixing hole 20 is opened on the outer wall of the first tool handle 1, and a tool rod limiting screw 21 is installed on the internal thread of the fixing hole 20. By opening the second limiting hole 19 and setting the fixing hole 20 on the outer wall of the first tool handle 1, the tool rod limiting screw 21 is used for fixing, thereby enhancing the overall connection strength, and the bottom end of the tool rod mounting groove 15 is fixedly connected with a first spring 16, and the top end above the first spring 16 is fixedly connected with a top block 17, and a rubber pad 18 is adhered above the top block 17, and the first spring 16 is arranged at the bottom end of the tool rod mounting groove 15, and the top block 17 is fixed on the top end thereof, and the rubber pad 18 is adhered above the top block 17. Such a design allows the top block 17 and the rubber pad 18 to be lifted up by the elastic force of the first spring 16 when the knife bar is installed, thereby forming a tight fit with the knife bar mounting block 14, further improving the stability of the connection and the shock absorbing effect.

[0026] Working principle:

[0027] First, the cutting block 4 is threadedly installed in the blade block mounting groove 13 of the cutter head 3 through the blade block mounting block 12. Then, by screwing the blade block limiting screw 6 into the first screw mounting hole 10 and the first limiting hole 11, the cutting block 4 can be further fixed and limited and installed on the cutter head 3 to ensure its stability and safety during the cutting process.

[0028] Secondly, the first tool bar 2 is installed in cooperation with the tool bar mounting groove 15 of the first tool handle 1 through the tool bar mounting block 14, so that the tool bar limiting screw 21 firmly fixes the first tool bar 2 on the first tool handle 1 through the fixing hole 20 and the second limiting hole 19. At the same time, the combined design of the first spring 16, the top block 17 and the rubber pad 18, when the first tool bar 2 is installed, the elastic force of the first spring 16 lifts up the top block 17 and the rubber pad 18, and fits tightly with the tool bar mounting block 14, thereby enhancing the stability of the connection and the shock absorption effect.

[0029] Then, when the milling cutter is installed on the processing equipment and started, the cutting edge 5 of the cutting block 4 starts to rotate and contact the mobile phone frame material to perform the cutting operation. During the cutting process, the chip removal groove 9 opened on the outer periphery of the cutting block 4 and the chip removal groove 8 evenly opened on the outer wall of the cutter head 3 work together to timely remove the waste chips generated by cutting, avoid the accumulation of waste chips in the cutting area, maintain the smoothness of cutting, and improve the processing efficiency.

[0030] Finally, the tool holder clamping surface 7 on the outer wall of the rear end of the first tool holder 1 ensures a stable connection between the tool and the processing equipment, prevents a decrease in cutting accuracy or damage to the tool due to vibration during the cutting process, and ensures the stability and safety of the processing process.

[0031] 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.

[0032] 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 carbide micro milling cutter for processing a mobile phone frame, comprising a first tool holder (1), characterized in that: The front end of the first tool handle (1) is threadedly mounted with a first tool rod (2), the front end outer wall of the first tool rod (2) is fixedly connected with a tool head (3), the front end of the tool head (3) is threadedly mounted with a cutting tool block (4), a tool block mounting groove (13) is provided at the connection between the tool head (3) and the cutting tool block (4), the tool block mounting groove (13) is located at the top of the tool head (3), a tool block mounting block (12) is fixed at the connection between the cutting tool block (4) and the tool head (3), and the tool block mounting block (12) is located at the rear end of the cutting tool block (4); A cutting edge (5) is fixedly provided at the top end of the cutting blade block (4), a chip removal groove (9) is provided on the outer periphery of the cutting blade block (4), and a first limiting hole (11) is provided on the outer periphery of the blade block mounting block (12).

2. The carbide micro milling cutter for processing a mobile phone frame according to claim 1, characterized in that: A handle clamping surface (7) is provided on the rear end outer wall of the first handle (1).

3. The carbide micro milling cutter for processing a mobile phone frame according to claim 1, characterized in that: The outer wall of the cutter head (3) is evenly provided with chip removal grooves (8), and the outer wall of the cutter head (3) is also provided with a first screw mounting hole (10).

4. The carbide micro milling cutter for processing a mobile phone frame according to claim 3, characterized in that: The inner thread of the first screw mounting hole (10) is provided with a knife block limiting screw (6).

5. The carbide micro milling cutter for processing a mobile phone frame according to claim 1, characterized in that: A shank mounting groove (15) is provided at the connection between the first shank handle (1) and the first shank rod (2), the shank mounting groove (15) being located inside the first shank handle (1), a shank mounting block (14) is fixed at the connection between the first shank rod (2) and the first shank handle (1), the shank mounting block (14) being located at the rear end of the first shank rod (2), and a second limiting hole (19) is provided on the outer wall of the shank mounting block (14).

6. The carbide micro milling cutter for processing a mobile phone frame according to claim 4, characterized in that: The outer wall of the first tool handle (1) is provided with a fixing hole (20), and the internal thread of the fixing hole (20) is provided with a tool bar limiting screw (21).

7. The carbide micro milling cutter for processing a mobile phone frame according to claim 5, characterized in that: The bottom end of the knife rod mounting groove (15) is fixedly connected to a first spring (16), the top end of the first spring (16) is fixedly connected to a top block (17), and a rubber pad (18) is adhered to the top of the top block (17).

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