Finish machining cutter

Abstract

The utility model relates to the technical field of precision machining, and discloses a finish machining cutter which comprises a cutter handle. The cutter head is arranged at the end part of the cutter handle; the blade is arranged on the periphery of the tool bit, the blade comprises an end blade part and a side blade part, the end blade part comprises a connecting part, a sleeking blade part and a tool nose part which are arranged in the radial direction of the tool bit, the connecting part is connected with the peripheral face of the tool bit, and the tool nose part is connected with the side blade part and used for conducting finish machining on the surface of a material; the side blade part is arranged away from the axis of the tool bit, and the end blade part is arranged away from the tool handle. The end face machining of various metal materials can be achieved, the cutter point can be effectively prevented from being broken, the service life of the cutter is prolonged, and a high-quality surface can be obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of precision machining, and more specifically, to a precision machining tool. Background Art

[0002] At present, non-ferrous metal materials (such as aluminum alloy, titanium alloy, copper, etc.) are widely used in electronics, automobiles, aerospace and other fields due to their advantages. The application of these materials requires high-precision machining surfaces. Existing flat machining of non-ferrous metal materials generally uses tools made of tungsten steel or high-speed steel materials. However, the flat surfaces machined by such tools are prone to serious ring marks, low flat surface finish, and short tool life. Summary of the invention

[0003] The utility model aims to provide a finishing tool to improve the processing quality of the material surface in view of the technical problems existing in the prior art.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] The utility model provides an end surface finishing tool, comprising:

[0006] Handle;

[0007] A knife head, arranged at the end of the knife handle;

[0008] A blade is arranged on the outer periphery of the cutter head, and the blade includes an end edge portion and a side edge portion. The end edge portion includes a connecting portion, a finishing edge portion and a cutting edge portion arranged along the radial direction of the cutter head. The connecting portion is connected to the outer peripheral surface of the cutter head, and the cutting edge portion is connected to the side edge portion, and is used for finishing the surface of the material.

[0009] Furthermore, the outer periphery of the cutter head is provided with a plurality of chip removal grooves along the circumferential direction, and the blade is respectively arranged in each of the chip removal grooves; the side edge portion is arranged away from the axis of the cutter head, and the end edge portion is arranged away from the handle.

[0010] Furthermore, the end of the wiper blade portion close to the side blade portion is inclined in a direction away from the tool handle, and the angle between the plane where the wiper blade portion is located and the axis of the tool head is δ, which satisfies 0°≤δ≤10°.

[0011] Furthermore, the blade tip portion adopts an arc transition portion whose two ends are respectively connected to the wiper blade portion and the side blade portion, and the surface of the blade tip portion is convex in a direction away from the center of the blade.

[0012] Furthermore, the arc radius R of the blade tip is 0.001 mm≤R≤10 mm.

[0013] Further, the inclination angle λ of the connecting portion satisfies 0° ≤ λ ≤ 15°.

[0014] Further, the rake angle α of the cutting edge on the blade satisfies -15° ≤ α ≤ 10°, and the first clearance angle β satisfies 0° ≤ β ≤ 30°.

[0015] Further, the cutting edge of the blade further has a second clearance angle θ satisfying 0° ≤ θ ≤ 60°.

[0016] Further, the shear angle γ of the chip groove satisfies 0° ≤ γ ≤ 30°.

[0017] Further, the diameter of the tool shank is D, and the length of the finishing edge portion is L, satisfying 0 < L / D ≤ 0.5.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] The present utility model can achieve the end face processing of various metal materials. By providing a finishing edge portion and a tool tip portion, the tool makes the processing of the material surface easier, can effectively prevent the chipping of the tool tip, improve the tool life, and can also obtain a high-quality surface. The structure is simple, convenient for processing and implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the solutions in the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0021] Figure 1 is a structural diagram of the finishing tool of the present utility model.

[0022] Figure 2 is a partial schematic view of the finishing tool of the present utility model.

[0023] Figure 3 is a schematic view of the blade in the present utility model.

[0024] Figure 4 is another schematic view of the blade in the present utility model.

[0025] Figure 5 is a parameter schematic view of the upper cutting edge of the blade in the present utility model.

[0026] Among them, 10 - tool shank, 20 - tool head, 21 - chip groove, 30 - blade, 31 - end cutting edge portion, 32 - side cutting edge portion, 311 - finishing edge portion, 312 - connecting portion, 313 - tool tip portion, 40 - transition portion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by terms such as "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0028] The terms "including" and "having" and any variations thereof in the specification and claims of the utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In the specification and claims of the utility model and the above-mentioned drawings, when an element is referred to as "fixed to" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as "connected to" another element, it may be directly or indirectly connected to the other element.

[0029] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] See also Figures 1 to 5 As shown in the figure, the utility model provides a finishing tool, comprising:

[0031] Handle 10;

[0032] A cutter head 20 is provided at the end of the cutter handle 10;

[0033] The blade 30 is arranged on the outer periphery of the cutter head 20, and the blade 30 includes an end edge portion 31 and a side edge portion 32. The end edge portion 31 includes a connecting portion 312, a finishing edge portion 311 and a cutting edge portion 313 arranged along the radial direction of the cutter head 20, and is used for finishing the surface of the material; the connecting portion 312 is connected to the outer peripheral surface of the cutter head 20, and the cutting edge portion 313 is arranged away from the axis of the cutter head 20 and connected to the side edge portion 32.

[0034] Specifically, the cutter head 20 and the handle 10 can be an integrated structure, that is, the end of the handle 10 is processed to form the cutter head 20, and the two can also be welded into an integrated structure. A transition portion 40 is provided between the handle 10 and the cutter head 20 to improve the rigidity of the overall structure of the tool. The two ends of the wiper blade portion 311 are respectively connected to the connecting portion 312 and the blade tip portion 313, which facilitates the processing of the material surface and ensures the processing effect.

[0035] Specifically, the handle 10 and the cutter head 20 can be made of materials such as tungsten steel, die steel, high-speed steel, etc., which can meet processing requirements and reduce costs. The blade 30 can be made of materials such as PCD (polycrystalline diamond), CBN (cubic boron nitride), tungsten steel, etc., which can ensure processing accuracy, improve the wear resistance of the blade 30, and extend the service life of the tool.

[0036] Furthermore, a plurality of chip grooves 21 are circumferentially provided on the outer periphery of the cutter head 20, and the blade 30 is respectively arranged in each of the chip grooves 21. The chip grooves 21 are provided to facilitate installation of the blade 31 and to facilitate discharge of chips when the blade 30 processes materials, thereby ensuring the reliability of the tool operation.

[0037] The side edge portion 32 of the blade 30 is disposed away from the axis of the cutter head 20 , and the end edge portion 32 is disposed away from the handle 10 , so that the blade 30 can perform fine processing on the end surface of the material.

[0038] Furthermore, the inclination angle λ of the connecting portion 312 is 0°≤λ≤15°, and can be specifically 0°, 5°, 8°, 10°, 12°, 15° or any value within the range, which facilitates processing and can meet actual processing requirements.

[0039] Furthermore, the end of the wiper blade portion 311 close to the side blade portion 32 is inclined in the direction away from the shank 10, and the angle between the plane where the wiper blade portion 311 is located and the axis of the cutter head 20 is δ, that is, the inclination angle δ of the wiper blade portion 311 satisfies 0°≤δ≤10°, and the specific value can be 0°, 5°, 8°, 10° or any value within the range. The wiper blade portion 311 is inclined in the direction away from the shank 10, which can further improve the processing quality of the material surface.

[0040] Furthermore, the front angle α of the blade on the blade 30 (i.e., the end edge 32 and the side edge 32) is -15°≤α≤10°, and the first back angle β is 0°≤β≤30°; the blade 30 also has a second back angle, and the second back angle θ is 0°≤θ≤60°, which is convenient for end face processing.

[0041] Specifically, the end blade portion 32 and the side blade portion 32 respectively include a plurality of blades, and the blade rake angle α can be -15°, -5°, 0°, 5°, 8°, 10° or any value within the range. Figure 5 The 0° reference plane shown in the figure, the blade rake angle α is located on the left side of the reference plane, that is, it takes a value of -15° to 0°, and is located on the right side of the reference plane, that is, it takes a value of 0° to 10°; the first back angle β can take a value of 0°, 5°, 10°, 15°, 20°, 25°, 30° or any value within the range, and the second back angle θ can take a value of 5°, 10°, 20°, 30°, 45°, 60° or any value within the range, which can meet the actual processing needs and ensure the processing accuracy.

[0042] Furthermore, the shear angle γ of the chip groove 21 on the cutter head 20 is 0°≤γ≤30°, and the specific value can be 0°, 5°, 10°, 15°, 20°, 25°, 30° or any value within the range, which facilitates the installation of the blade 23 in the chip groove 21 to meet the needs of actual processing.

[0043] Furthermore, the diameter of the shank 10 is D, and the length of the wiper blade portion 311 is L, satisfying 0<L / D≤0.5, and the specific values ​​may be 0.1, 0.2, 0.3, 0.4, 0.5 or any value within the range; wherein 0.001mm≤L≤0.5mm, and the specific values ​​may be 0.005mm, 0.01mm, 0.1mm, 0.25mm, 0.3mm, 0.4mm, 0.5mm or any value within the range, so as to conveniently and reliably finish the end face of the material.

[0044] Furthermore, the blade tip portion 313 adopts an arc transition portion whose two ends are respectively connected to the finishing blade portion and the side blade portion. The surface of the blade tip portion 313 is raised in a direction away from the center of the blade 30. The arc radius R of the blade tip portion 313 is 0.001mm≤R≤10mm, and the specific value can be 0.001mm, 0.01mm, 0.5mm, 1mm, 4mm, 6mm, 8mm, 10mm or any value within the range, which can meet different processing requirements and ensure processing accuracy.

[0045] In the present embodiment, the upper end cutting edge 31 of the tool is provided with a structure of a finishing edge 311 and a blade tip 313, and the relevant parameters satisfy the above-mentioned angle range and size range. The finishing edge 311 is inclined, and the extrusion effect of the finishing edge 311 on the tool is utilized to achieve mirror finishing of soft materials such as aluminum alloy and copper. The structure is simple and convenient for processing, and can effectively prevent chipping of the blade tip, thereby increasing the tool life and obtaining a high-quality surface.

[0046] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present utility model shall be equivalent replacement methods and are all included in the protection scope of the present utility model.

Claims

1. A finishing tool, characterized in that: include: Handle; A knife head, arranged at the end of the knife handle; A blade is arranged on the outer periphery of the cutter head, and the blade includes an end edge portion and a side edge portion. The end edge portion includes a connecting portion, a finishing edge portion and a cutting edge portion arranged along the radial direction of the cutter head. The connecting portion is connected to the outer peripheral surface of the cutter head, and the cutting edge portion is connected to the side edge portion, and is used for finishing the surface of the material.

2. The finishing tool according to claim 1, characterized in that: The outer periphery of the cutter head is provided with a plurality of chip removal grooves along the circumferential direction, and the blade is respectively arranged in each of the chip removal grooves; the side blade portion is arranged away from the axis of the cutter head, and the end blade portion is arranged away from the handle.

3. The finishing tool according to claim 1, characterized in that: The end of the wiper blade portion close to the side blade portion is inclined in a direction away from the tool handle, and the angle between the plane where the wiper blade portion is located and the axis of the tool head is δ, which satisfies 0°≤δ≤10°.

4. The finishing tool according to claim 1, characterized in that: The blade tip portion adopts an arc transition portion whose two ends are respectively connected with the wiper blade portion and the side blade portion, and the surface of the blade tip portion is convex in a direction away from the center of the blade.

5. The finishing tool according to claim 4, characterized in that: The arc radius R of the blade tip is 0.001 mm ≤ R ≤ 10 mm.

6. The finishing tool according to claim 1, characterized in that: The inclination angle λ of the connecting portion is 0°≤λ≤15°.

7. The finishing tool according to claim 1, characterized in that: The front angle α of the blade on the blade is -15°≤α≤10°, and the first back angle β is 0°≤β≤30°.

8. The finishing tool according to claim 7, characterized in that: The blade edge of the blade also has a second clearance angle, and the second clearance angle θ is 0°≤θ≤60°.

9. The finishing tool according to claim 2, characterized in that: The shear angle γ of the chip removal groove is 0°≤γ≤30°.

10. The finishing tool according to any one of claims 1 to 9, characterized in that: The diameter of the shank is D, and the length of the wiper blade is L, which satisfies 0<L / D≤0.5.

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