U-shaped groove milling cutter structure

Abstract

The utility model is suitable for the technical field of milling cutters, and provides a U-shaped groove milling cutter structure which comprises a cutter handle assembly and a cutter body assembly arranged at the front end of the cutter handle assembly, the cutter handle assembly comprises a cutter handle, the cutter handle is conical, the diameter of the bottom face of the cutter handle is G, and the value of G is set to be 12 MM; the cutter body assembly comprises a cutting column body, the shape of the cutting column body is a cylinder, the length of the cutting column body is B, and the value of B is set to be 30 + / -0.15 MM. According to the device, the problems that after a cutter head is abraded, the cutting efficiency is reduced, the cutter head is twisted off, machining personnel are harmed, the cutter head needs to be frequently replaced, and many burrs appear on a workpiece during cutting are solved; the effects that the overall mechanical strength and rigidity of the milling cutter are improved, the milling cutter can bear cutting force and vibration force generated in the milling process, the surface of the cutter is effectively kept clean, the service life of the cutter is prolonged, vibration is reduced in the machining process, and larger cutting force can be borne are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, and more specifically, it relates to a U-shaped groove milling cutter structure. Background Art

[0002] A milling cutter is a rotary tool with one or more cutting teeth used for milling machining. When working, each cutting tooth intermittently cuts off the surplus of the workpiece in turn. Milling cutters are mainly used for machining planes, milling holes, steps, grooves, forming surfaces, and cutting workpieces on milling machines, etc.

[0003] Currently, milling cutters on the market usually include a tool shank and a cutter head connected to the tool shank. Multiple milling edges are arranged on the cutter head, and chip flutes are formed between adjacent two of the milling edges; at least one main cutting edge and at least one chamfering edge are provided among the multiple milling edges. A main milling surface is formed on one side of the main cutting edge facing the tool shank, a chamfer milling surface is formed on one side of the chamfering edge facing the tool shank, and a preset included angle is formed between the main milling surface and the chamfer milling surface.

[0004] Since aluminum alloy has relatively high strength, its strength is close to that of high alloy steel, its stiffness exceeds that of steel, and it has good casting performance and plastic processing performance, good electrical and thermal conductivity, good corrosion resistance and weldability. However, for the milling cutters on the market when cutting aluminum alloy, only one cutter head is used for cutting, and waste will be generated when cutting the U-shaped groove of aluminum alloy. Since there is only one chip evacuation groove on one cutter head, the cut waste will accumulate in the U-shaped groove. In this way, the waste chips will hinder the cutting of the cutter head. Due to only one cutter head, the cutter head is prone to wear during the process of cutting the U-shaped groove of aluminum alloy. After the cutter head wears, the cutting efficiency decreases, the required precision cannot be achieved, the cutter head is easily broken, which poses a hazard to the processing personnel, the cutter head needs to be replaced frequently, resulting in high economic losses, and there will be a phenomenon of many material burrs during cutting. All these materials need to be processed, resulting in slow processing speed and low production efficiency. Summary of the Utility Model

[0005] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a U-shaped groove milling cutter structure.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A U-shaped groove milling cutter structure includes a tool shank assembly and a cutter body assembly installed at the front end of the tool shank assembly.

[0008] The tool shank assembly includes a tool shank. The shape of the tool shank is conical, and the bottom diameter of the tool shank is G, and the value of G is set to 12 MM.

[0009] The tool body assembly includes a cutting cylinder, the shape of the cutting cylinder is cylindrical, the length of the cutting cylinder is B, and the value of B is set to 30 ± 0.15 MM.

[0010] The present utility model is further configured such that: an installation handle is installed at one tapered end of the tool handle, the shape of the installation handle is cylindrical, and the total length of the tool handle assembly and the tool body assembly is A, and the value of A is set to 75 ± 0.3 MM.

[0011] By adopting the above technical solution, the shape of the installation handle is set to be cylindrical. Designing it as a cylinder is convenient for heat dissipation and reduces tool wear caused by heat concentration during the working process. By setting the length of the entire structure, the mechanical strength and rigidity of the overall milling cutter are improved, enabling the milling cutter to withstand the cutting force and vibration force generated during the milling process and not being easily damaged.

[0012] The present utility model is further configured such that: a first cutting edge is installed on the outer surface of the cylindrical tool handle, and the first cutting edge is spirally installed around the outer surface of the cylindrical tool handle.

[0013] The present utility model is further configured such that: a second cutting edge and a third cutting edge are also installed on the outer surface of the cylindrical tool handle, and both the second cutting edge and the third cutting edge are spirally installed around the outer surface of the cylindrical tool handle.

[0014] The present utility model is further configured such that: a second chip removal groove is provided between the first cutting edge and the second cutting edge, the width of the second chip removal groove is I, and the dimension of I is set to 0.9 MM. A first chip removal groove is provided between the second cutting edge and the third cutting edge, and the width of the first chip removal groove is J, and the dimension of J is set to 0.96 MM.

[0015] By adopting the above technical solution, setting the first chip removal groove helps to maintain the flow of the cutting fluid, discharge waste chips, and avoid overheating of the milling cutter caused by excessive accumulation of waste chips. The different widths of the first chip removal groove and the second chip removal groove provide better cooling and lubrication conditions, achieving the effect of effectively keeping the tool surface clean and extending the service life of the tool.

[0016] The present utility model is further configured such that: cutting tool tips are provided on all of the first cutting edge, the second cutting edge, and the third cutting edge, the thickness of the cutting tool tip is K, and the dimension of K is set to 0.216 ± 0.02 MM. An end face groove is provided on the end face formed by the tool handle and the first cutting edge, the second cutting edge, and the third cutting edge, and the angle of the end face groove is H, and the value of H is set to 1.8° - 2.3°.

[0017] By adopting the above technical solution, by setting the thickness of the cutting tip, a smoother surface can be machined by the milling cutter. During the milling process, the cutting tip can withstand greater cutting forces without deformation or damage. An end face groove is provided on the end face formed by the tool shank and the first cutting edge, the second cutting edge, and the third cutting edge. The end face groove expands the machining range of the milling cutter, enabling it to reach the edges or corners of the workpiece. The end face groove helps to smooth the cutting edge and reduce damage. By setting the cutting tip and the end face groove, the effect of reducing vibration during machining and being able to withstand greater cutting forces is achieved.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. By setting the length of the entire milling cutter structure, the overall mechanical strength and rigidity of the milling cutter are improved, enabling the milling cutter to withstand the cutting forces and vibration forces generated during the milling process and being not easily damaged.

[0020] 2. By setting different widths of the first chip removal groove and the second chip removal groove, better cooling and lubrication conditions are provided, achieving the effect of effectively keeping the tool surface clean and extending the service life of the tool.

[0021] 3. By setting the thickness of the cutting tip and the angle of the end face groove, the effect of reducing vibration during machining and being able to withstand greater cutting forces is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural view of the U-shaped groove milling cutter structure in the present utility model.

[0023] Figure 2 It is a schematic truncated view of the tool body assembly in the present utility model.

[0024] Figure 3 It is a schematic sectional view of the tool body assembly in the present utility model.

[0025] Figure 4 It is a left view of the tool body assembly in the present utility model.

[0026] Description of the reference numerals: 1. Tool shank assembly; 11. Mounting shank; 12. Tool shank;

[0027] 2. Tool body assembly; 21. First chip removal groove; 22. Second chip removal groove; 23. Cutting tip; 24. First cutting edge; 25. Second cutting edge; 26. Third cutting edge; 27. Cutting cylinder; 28. End face groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0030] For Embodiment 1, please refer to Figures 1 - 4 , the present utility model provides the following technical solutions:

[0031] Refer to Figure 1 , a U-shaped groove milling cutter structure, including a tool shank assembly 1. The tool shank assembly 1 is the main part of the milling cutter, usually made of steel or alloy, used to connect the milling cutter and the clamping device of the milling machine. A cutter body assembly 2 is installed at the front end of the tool shank assembly 1. The cutter body assembly 2 is mainly used for cutting workpieces, generally formed by a single blade or a combination of multiple blades. Different shapes, numbers, and arrangements of the cutter teeth during the cutting process will affect the cutting performance of the milling cutter.

[0032] Refer to Figure 1 , the tool shank assembly 1 includes a tool shank 12. The shape of the tool shank 12 is conical, and the bottom diameter of the tool shank 12 is G. The value of G is set to 12 MM. By setting the diameter of the tool shank 12, the effect of improving the installation fastening degree can be achieved, and a stable connection effect is achieved when installed on the milling machine.

[0033] Refer to Figure 4 , the cutter body assembly 2 includes a cutting cylinder 27. The cutting cylinder 27 provides an installation environment. When the milling cutter cuts, it drives the blade to move downward. The shape of the cutting cylinder 27 is cylindrical, and the length of the cutting cylinder 27 is B. The value of B is set to 30 ± 0.15 MM. By setting the length of the cutting cylinder 27, the length of 27 is the length required for the workpiece to be cut, so as to achieve an appropriate depth when cutting the groove.

[0034] Refer to Figure 1 , one end of the conical tool shank 12 has a mounting shank 11. The mounting shank 11 is mainly used for support, provides a support force during the working process of the milling cutter, and provides an installation environment. The shape of the mounting shank 11 is cylindrical. Designing it as a cylinder is convenient for heat dissipation, reducing tool wear caused by heat concentration during the working process. The total length of the tool shank assembly 1 and the cutter body assembly 2 is A. The value of A is set to 75 ± 0.3 MM. By setting the length of the entire structure, the overall mechanical strength and rigidity of the milling cutter are improved, enabling the milling cutter to withstand the cutting force and vibration force generated during the milling process and not being easily damaged.

[0035] Refer to Figure 1 and Figure 2, a first cutting edge 24 is installed on the outer surface of the cylindrical handle 12. The first cutting edge 24 is helically installed around the outer surface of the cylindrical handle 12. This helical installation method helps to achieve continuous cutting action, can distribute the cutting force more evenly, reduce the impact on the milling cutter and the workpiece, reduce vibration, and the helically arranged blades can adapt to different milling depths and widths, providing more flexible processing capabilities. The first cutting edge 24 is the component on the milling cutter that actually performs cutting, and the first cutting edge 24 can adapt to the cutting requirements of the workpiece.

[0036] Refer to Figure 3 , a second cutting edge 25 and a third cutting edge 26 are also installed on the outer surface of the cylindrical handle 12. The second cutting edge 25 and the third cutting edge 26 are both helically installed around the outer surface of the cylindrical handle 12. The second cutting edge 25 and the third cutting edge 26 can perform fine cutting after the first cutting edge 24 has finished cutting, and process the burrs left by the first cutting edge 24. The first cutting edge 24, the second cutting edge 25, and the third cutting edge 26 are arranged in a helix, and the wear degree of each blade during the milling process is more uniform, which can effectively extend the service life of the blade. Make a cross auxiliary line in the middle of the cutting cylinder 27. The top of the first cutting edge 24 is the front angle, and the first rear angle and the second rear angle are set at the protruding places. The angle between the top front angle of the first cutting edge 24 and the auxiliary line is F, and the value of F is set to 16° - 18°. Make a horizontal auxiliary line along the top front angle of the first cutting edge 24. The angle between the horizontal auxiliary line of the front angle and the first rear angle is D, and the value of D is 11° ± 1°. The angle between the horizontal auxiliary line of the front angle and the second rear angle is E, and the value of E is 22° ± 1°.

[0037] Refer to Figure 2 and Figure 3 , a second chip groove 22 is provided between the first cutting edge 24 and the second cutting edge 25. The second chip groove 22 is used to discharge the waste chips produced during the cutting process of the first cutting edge 24 and the second cutting edge 25, avoiding the accumulation of waste chips on the surface of the workpiece and affecting the cutting efficiency. The width of the second chip groove 22 is I, and the size of I is set to 0.9MM. A first chip groove 21 is provided between the second cutting edge 25 and the third cutting edge 26. The first chip groove 21 helps to maintain the flow of the cutting fluid, discharge the waste chips, and avoid overheating of the milling cutter caused by excessive accumulation of waste chips. The width of the first chip groove 21 is J, and the size of J is set to 0.96MM. By setting the different widths of the first chip groove 21 and the second chip groove 22, better cooling and lubrication conditions are provided, achieving the effect of effectively keeping the tool surface clean and extending the service life of the tool.

[0038] Refer to Figure 2 and Figure 3, the first cutting edge 24, the second cutting edge 25, and the third cutting edge 26 are all provided with cutting tips 23. The cutting tip 23 is the point where the milling cutter contacts the material and performs actual cutting. The shape, sharpness, and material of the cutting tip 23 will directly affect the cutting effect and machining quality. The thickness of the cutting tip 23 is K, and the size of K is set to 0.216 ± 0.02 MM. By setting the thickness of the cutting tip 23, the milling cutter can machine a smoother surface. During the milling process, the cutting tip 23 can withstand greater cutting forces without deformation or damage. On the end face formed by the tool shank 12 and the first cutting edge 24, the second cutting edge 25, and the third cutting edge 26, there is an end face groove 28. The end face groove 28 expands the machining range of the milling cutter, enabling it to reach the edges or corners of the workpiece. The end face groove 28 helps to smooth the cutting edge and reduce damage. The angle of the end face groove 28 is H, and the value of H is set to 1.8° - 2.3°. By setting the cutting tip 23 and the end face groove 28, the effect of reducing vibration during machining and being able to withstand greater cutting forces is achieved.

[0039] Specifically, the milling cutter is installed on the milling machine through the tool shank 12. When starting to machine the workpiece, the cutting tip 23 of the first cutting edge 24 first cuts the workpiece. The first cutting edge 24 performs spiral cutting on the workpiece along the cutting tip 23. The cutting tips 23 of the second cutting edge 25 and the third cutting edge 26 perform finish machining on the areas cut by the first cutting edge 24. The first chip groove 21 and the second chip groove 22 discharge the cut waste chips. By setting the length of the entire milling cutter structure, the effect of improving the overall mechanical strength and rigidity of the milling cutter is achieved, enabling the milling cutter to withstand the cutting forces and vibration forces generated during the milling process and not being easily damaged; by setting the different widths of the first chip groove 21 and the second chip groove 22, better cooling and lubrication conditions are provided, achieving the effect of effectively keeping the tool surface clean and extending the service life of the tool; by setting the thickness of the cutting tip 23 and the angle of the end face groove 28, the effect of reducing vibration during machining and being able to withstand greater cutting forces is achieved.

[0040] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

Claims

1. A U-shaped groove milling cutter structure, characterized in that: It comprises a knife handle assembly (1) and a knife body assembly (2) mounted on the front end of the knife handle assembly (1); The handle assembly (1) comprises a handle (12), the handle (12) is conical in shape, the bottom surface diameter of the handle (12) is G, and the value of G is set to 12MM; The cutter body assembly (2) comprises a cutting cylinder (27), the shape of the cutting cylinder (27) is a cylinder, the length of the cutting cylinder (27) is B, and the value of B is set to 30±0.15MM.

2. A U-shaped groove milling cutter structure according to claim 1, characterized in that: A mounting handle (11) is installed at one conical end of the tool handle (12), and the mounting handle (11) is in the shape of a cylinder. The total length of the tool handle assembly (1) and the tool body assembly (2) is A, and the value of A is set to 75±0.3MM.

3. A U-shaped slot milling cutter structure according to claim 1, characterized in that: A first cutting edge (24) is installed on the cylindrical outer surface of the tool handle (12), and the first cutting edge (24) is spirally installed around the cylindrical outer surface of the tool handle (12).

4. A U-shaped slot milling cutter structure according to claim 3, characterized in that: The outer surface of the tool handle (12) cylinder is also provided with a second cutting edge (25) and a third cutting edge (26), and the second cutting edge (25) and the third cutting edge (26) are both spirally installed around the outer surface of the tool handle (12) cylinder.

5. A U-shaped slot milling cutter structure according to claim 4, characterized in that: A second chip removal groove (22) is arranged between the first cutting edge (24) and the second cutting edge (25), the width of the second chip removal groove (22) is I, and the size of I is set to 0.9MM; a first chip removal groove (21) is arranged between the second cutting edge (25) and the third cutting edge (26), the width of the first chip removal groove (21) is J, and the size of J is set to 0.96MM.

6. A U-shaped slot milling cutter structure according to claim 5, characterized in that: The first cutting edge (24), the second cutting edge (25) and the third cutting edge (26) are all provided with a cutting tip (23), the thickness of the cutting tip (23) is K, and the size of K is set to 0.216±0.02MM; an end face groove (28) is provided on the end face formed by the handle (12) and the first cutting edge (24), the second cutting edge (25) and the third cutting edge (26), and the angle of the end face groove (28) is H, and the value of H is set to 1.8°-2.3°.

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