Machining tool

Abstract

The utility model relates to the technical field of machining, and discloses a machining cutter which comprises a cutter bar. The cutter head is arranged at the end part of the cutter bar; the tool bit is provided with a plurality of cutting edge parts, and the cutting edge parts are located on the peripheral face of the tool bit and the end face connected with the peripheral face respectively and used for machining different positions of the outline of a product. Due to the fact that the multiple blade parts are arranged on the tool bit, the machining requirements of different outlines can be met, namely, one tool can meet the machining requirements of different outlines of a shell, the overall structure has high strength and machining precision, and the machining efficiency and the machining precision can be guaranteed.

Description

Technical Field

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

[0002] In the field of 3C electronic products, the shells of products are mostly complex curved structures, or structures where straight surfaces and curved surfaces are connected. When processing the shell of a product, it is necessary not only to process the outer contour of the side of the product, but also to process the part that connects with the side contour, that is, the upper / lower plane of the product. However, for the processing of such products, it is usually necessary to use a variety of different types of tools, and the tool type needs to be changed during the processing process to achieve processing of different positions of the product contour separately, which increases the tool change time and seriously affects the processing efficiency. The use of multiple tools also increases the processing cost. Summary of the invention

[0003] The purpose of the utility model is to provide a processing tool to solve the technical problems existing in the prior art, so as to meet the different processing requirements of products and improve the processing efficiency and processing quality.

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

[0005] The utility model provides a processing tool, comprising:

[0006] Tool bar;

[0007] A cutter head, arranged at the end of the cutter rod;

[0008] The cutter head has a plurality of cutting edges, which are respectively located on the outer peripheral surface of the cutter head and the end surface connected to the outer peripheral surface, and are used for processing different positions of the product contour.

[0009] Furthermore, the outer peripheral surface of the cutter head is concave inwardly toward the axial direction of the cutter rod to form a concave portion, or is convex outwardly toward the axial direction away from the cutter rod to form a convex portion, and the surface of the concave portion or the convex portion forms a first blade portion.

[0010] Furthermore, a second blade portion and a third blade portion are respectively arranged on both side end surfaces connected to the outer peripheral surface of the cutter head, and the second blade portion and the third blade portion are respectively located at the outer edges of the corresponding end surfaces.

[0011] Furthermore, the diameter of the tool rod is set to D1, and the diameter of the tool head is D2, then D2 / D1=1-5, the depth of the concave portion on the tool head perpendicular to the axis is h1, and D2 / h1=4-25.

[0012] Furthermore, the height of the cutter head is H1, the radial depth of the second blade portion and the third blade portion along the cutter head is h2, and the axial depth is h3, then H1 / h3=4~14, h2=((D2-D1) / 2)×2 / 3.

[0013] Furthermore, spiral grooves are respectively arranged on the end surfaces on both sides of the cutter head connected to the outer peripheral surface, welding sheets are arranged in the spiral grooves to form a fourth blade portion and a fifth blade portion; the ends of the welding sheets protrude from the corresponding outer edges of the spiral grooves.

[0014] Furthermore, the diameter of the tool rod is D11, and the diameter of the tool head is D22, then D22 / D11=1-5, the depth of the concave portion on the tool head perpendicular to the axis is h11, and D22 / h11=4-25.

[0015] Furthermore, the height of the cutter head is H11, the radial depth of the spiral groove is h22, and the axial depth of the spiral groove is h33, then H11 / h33=4-14, h22=((D22-D11) / 2)×2 / 3.

[0016] Furthermore, the effective height of the fourth blade portion and the fifth blade portion is H3, and the effective length is L3, then H3=h33+(0.05~5), L3=h22+(0.05~5).

[0017] Furthermore, the tool rod is made of tungsten steel, stainless steel or high-speed steel, the tool head is made of PCD material, and the welding sheet is made of PCD, CBN or tungsten steel material.

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

[0019] The processing tool provided by the utility model can realize the processing requirements of different contours by arranging multiple blade parts on the tool head, and the multiple blade parts are respectively located on the outer peripheral surface of the tool head and the end surface connected to the outer peripheral surface, that is, one tool can meet the processing requirements of different contours of the outer shell, the overall structure has high strength and processing accuracy, and can ensure the processing efficiency and processing accuracy of actual processing applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the scheme of the utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 It is a structural schematic diagram of a first example of a machining tool in the utility model.

[0022] Figure 2 It is an exploded view of the first example of the machining tool in the utility model.

[0023] Figure 3 It is a schematic diagram of the blade parameters in the utility model.

[0024] Figure 4 It is a structural schematic diagram of the second processing tool example in the utility model.

[0025] Figure 5 It is an exploded view of the second processing tool example in the utility model.

[0026] Figure 6 This is an example diagram of the concave portion on the cutter head in the utility model.

[0027] Among them, 10-tool bar, 20-tool head, 21-first blade portion, 22-second blade portion, 23-third blade portion, 24-first spiral groove, 25-second spiral groove, 26-welding sheet, 27-fourth blade portion, 28-fifth blade portion. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Embodiment 1

[0032] See also Figure 1 and Figure 2 As shown, the utility model provides a processing tool, including a tool rod 10, and a tool head 20 arranged at the end of the tool rod 10, the tool head 20 has a plurality of blade portions, and the plurality of blade portions are respectively located on the outer peripheral surface of the tool head 20 and the end surface connected to the outer peripheral surface, and the plurality of blade portions are used to process different positions of the product contour.

[0033] In this embodiment, by providing a plurality of blade portions on the cutter head 20 and forming an integral cutter, it is possible to process different contours of a product or different positions on the contour of a product, thereby reducing the cost of the cutter and improving the processing efficiency of the cutter, thereby meeting different processing requirements.

[0034] Furthermore, a first blade portion 21 is provided on the outer peripheral surface of the cutter head 20, and a second blade portion 22 and a third blade portion 23 are respectively provided on the two side end surfaces of the cutter head 20 connected to the outer peripheral surface, so as to realize processing of different contours of the product; the second blade portion 22 and the third blade portion 23 are respectively located at the outer edges of the corresponding end surfaces on the cutter head 20, so as to facilitate reliable processing of the product contour.

[0035] Furthermore, the outer peripheral surface of the cutter head 20 is concave inwardly toward the axial direction of the cutter rod 10 to form a concave portion, or is convex outwardly toward the axial direction away from the cutter rod 10 to form a convex portion, and the surface of the concave portion or the convex portion forms the first blade portion 21, which can meet the processing requirements of different positions or different contours of the product surface.

[0036] In this embodiment 1, refer to Figure 3 As shown, the first blade portion 21, the second blade portion 22 and the third blade portion 23 all include a plurality of blades evenly distributed and spirally arranged, wherein the front angle of the blade is -5° to 25°, the back angle is 0° to 15°, the helix angle is 0° to 30°, and the back angle width is

[0037] The width of the blade teeth is 0.01mm~0.1mm, the width of the blade teeth is 0.1mm~2mm, and the height of the blade teeth is 0.1mm~2mm, which can meet different processing requirements and ensure the processing quality of the tool.

[0038] Specifically, the front angle of the blade can be -5°, 0°, 5°, 10°, 15°, 20°, 25° or any value within the range, and the back angle of the blade can be 0°, 5°,

[0039] 10°, 15° or any value within the range, the helix angle may also be 0°, 15°, 30°

[0040] Or any value within the range can meet different processing requirements.

[0041] Specifically, the back angle width can be 0.01mm, 0.05mm, 0.1mm or any value within the range, and the width and height of the cutting teeth can be 0.1mm, 1mm, 2mm or any value within the range, respectively, so as to meet different processing requirements.

[0042] Specifically, the number of blades of the blade is 10 to 100, and the relationship between the number of blades and the diameter of the cutter head 20 is: 3.14×diameter÷tooth width=maximum number of blades, wherein the number of blades is 1 / 10 maximum number of blades to maximum number of blades, and the number of blades can be 10, 50, 100 or any value within the range to meet different processing requirements.

[0043] In the first embodiment, the first blade portion 21, the second blade portion 22 and the third blade portion 23 can use blades of the same blade shape or different blade shapes, and the blade shapes on the three parts can be processed by clamping once to obtain the first blade portion 21, the second blade portion 22 and the third blade portion 23, thereby avoiding repeated clamping, which leads to excessive repeated positioning errors, reduces the manufacturing accuracy of the tool, and thus affects the processing quality of the product.

[0044] Furthermore, the diameter of the tool rod 10 is set to D1, and the diameter of the tool head 20 is D2, then D2 / D1=1~5, the depth of the recessed portion on the tool head 20 perpendicular to the axis is h1, D2 / h1=4~25, and the specific ratio value can be any value within the range, D2 / D1 can be 1, 2, 2.5, 3, 3.5, 5, etc., and D2 / h1 can be 4, 5, 10, 15, 20, 25, etc., so that the first blade portion 21 can meet the processing requirements and ensure the overall structural strength of the tool.

[0045] Furthermore, the height of the cutter head 20 is H1, the radial depth of the second cutting edge portion 22 and the third cutting edge portion 23 along the cutter head 20 (i.e., the effective cutting length) is h2, and the axial depth of the second cutting edge portion 22 and the third cutting edge portion 23 along the cutter head 20 (i.e., the effective cutting height) is h3, then H1 / h3=4~14, h2=((D2-D1) / 2)×2 / 3, and the specific ratio value can be arbitrarily taken within the range, that is, H1 / h3 can be 4, 8, 10, 12, 14, etc., so that the second cutting edge portion 22 and the third cutting edge portion 23 can meet the processing requirements and ensure the overall structural strength of the tool.

[0046] Specifically, for the convenience of processing and installation, the tool rod 10 and the tool head 20 are respectively made of cylindrical bars and are coaxially arranged in sequence; the diameter D1 is 6-12mm, D2 is 15-20mm, h1 is 1-3mm, H1 is 12-14mm, h2 is 3-5mm, and h3 is 1-2mm. Any value can be taken within the range, and an effective and reliable first blade portion 21, second blade portion 22 and third blade portion 23 can be obtained, which meet the processing requirements and ensure the overall structural strength of the tool.

[0047] Furthermore, the tool rod 10 is made of tungsten steel, stainless steel, and high-speed steel, which can ensure the rigidity of the tool structure and reduce costs; the tool head 20 is made of PCD (polycrystalline diamond) and CBN (cubic boron nitride), which can improve the rigidity and strength of the tool and enable reliable finishing of the product.

[0048] Embodiment 2

[0049] See also Figure 5 and Figure 6 As shown, the difference between the second embodiment and the first embodiment lies in the structure of the cutter head 20 .

[0050] In this embodiment, a first blade portion 21 is provided on the outer peripheral surface of the cutter head 20, and a first spiral groove 24 and a second spiral groove 25 are respectively provided on the upper and lower end surfaces of the cutter head 20 connected to the outer peripheral surface, and welding pieces 26 are respectively provided in the first spiral groove 24 and the second spiral groove 25, and a fourth blade portion 27 and a fifth blade portion 28 are formed; the end of the welding piece 26 protrudes from the outer edge of the corresponding first spiral groove 24 or the second spiral groove 25, which is convenient for the fourth blade portion 27 and the fifth blade portion 28 formed by the welding piece 26 to process the product, thereby ensuring the reliability of the processing.

[0051] Specifically, the first spiral groove 24 and the second spiral groove 25 are respectively processed along the circumferential direction on the outer edges of the upper and lower end surfaces of the cutter head 20, and then the tool rod 10, the cutter head 20, and the welding piece 26 are respectively connected into an integrated structure by vacuum welding or other methods. Finally, the outer peripheral surface of the cutter head 20 and the welding piece 26 are processed by laser processing to obtain the first blade portion 21, the fourth blade portion 27 and the fifth blade portion 28, respectively.

[0052] In the second embodiment, the front angle of the blade in the fourth blade portion 27 and the fifth blade portion 28 is -10° to 35°, the back angle is 0° to 25°, the helix angle is 0° to 45°, and the back angle width is 0.01mm to 0.1mm. The blade parameters can also take any value within the above range to meet different processing requirements.

[0053] Specifically, the number of blades in the fourth blade portion 27 and the fifth blade portion 28 is 2 to 15. The number of blades can be 2, 8, 15 or any value within the range, which can meet different processing requirements and make the tool have reliable structural accuracy and strength.

[0054] Furthermore, the material of the welding sheet 26 can be PCD, CBN, or tungsten steel to meet different processing requirements and ensure processing accuracy.

[0055] In the second embodiment, by providing a first spiral groove 24 and a second spiral groove 25 on the cutter head 20, welding sheets 26 are provided in all the spiral grooves respectively, and a fourth blade portion 27 and a fifth blade portion 28 are formed. The welding sheets 26 and the cutter head 20 can be made of the same material or different materials according to actual processing needs. That is, for some product contours, the welding sheets 26 can be made of low-cost tungsten steel material to meet the processing requirements, thereby reducing the cost of the tool.

[0056] Furthermore, the diameter of the tool rod 10 is set to D11, and the diameter of the tool head 20 is D22, then D22 / D11=1~5, the depth of the recessed portion on the tool head 20 perpendicular to the axis is h11, D22 / h11=4~25, and the specific ratio value can be arbitrarily taken within the range, that is, D22 / D11 can be 1, 2, 2.5, 3, 5, etc., and D22 / h11 can be 4, 10, 15, 20, 25, etc., which meets the processing requirements and can ensure the overall structural strength of the tool.

[0057] Furthermore, the height of the tool head 20 is H11, the radial depth of the first spiral groove 24 and the second spiral groove 25 (i.e., the effective cutting length) is h22, and the axial depth of the first spiral groove 24 and the second spiral groove 25 (i.e., the effective cutting length) is h33, then H11 / h33=4~14, h22=((D22-D11) / 2)×2 / 3, and the specific ratio value can be arbitrarily taken within the range, that is, H11 / h33 can be 4, 6, 8, 10, 12, 14, etc., which meets the processing requirements and can ensure the overall structural strength of the tool.

[0058] Furthermore, the effective height of the fourth blade portion 27 and the fifth blade portion 28 (i.e., the height along the axial direction of the cutter head 20) is H3, and the effective length (i.e., the length along the radial direction of the cutter head 20) is L3, then H3=h33+(0.05~5), L3=h22+(0.05~5); specifically, H3 or L3 can take the value of h33 or h22+0.05, 0.1, 1, 3, 5 or any value within the range, which meets the processing requirements and can ensure the overall structural strength of the tool.

[0059] Specifically, in the second embodiment, for the convenience of processing and installation, the diameter D1 is 10-12 mm, D2 is 19-24 mm, H11 is 12-14 mm, h11 is 1-3 mm, h22 is 3-5 mm, h33 is 1-2 mm, H3 is 1.5-5 mm, and L3 is 2.5-7 mm. Any value can be taken within the range, and an effective and reliable blade can be obtained to meet processing requirements and ensure the overall structural strength of the tool.

[0060] In the present invention, the surface forming the concave portion on the cutter head 20 can be an arc surface or a circular arc surface to meet the processing requirements of different product contours;

[0061] The surface of the concave portion may further include a first straight surface segment 631, a first arc surface segment 632, and a second arc surface segment 633 ( Figure 6 a), the first straight surface segment 631 is arranged parallel to the axis of the cutter head 20, and the two ends of the first straight surface segment 631 are arranged opposite to each other and sequentially connected to the first arc surface segment 632 and the second arc surface segment 633 to meet the processing requirements of different product contours;

[0062] The surface of the concave portion may further include a curved surface segment 641, a first inclined surface segment 642, a second inclined surface segment 643 ( Figure 6 b), the first bevel segment 642 and the second bevel segment 643 are sequentially arranged and connected along the tangent direction of the two ends of the arc segment 641 to meet the processing requirements of different product contours;

[0063] The surface of the concave portion may further include a second straight surface segment 651, a third arc surface segment 652, a fourth arc surface segment 653, a third inclined surface segment 654, and a fourth inclined surface segment 655 ( Figure 6 c), the second straight surface segment 651 is arranged parallel to the axis of the tool head 20, and the two ends of the second straight surface segment 651 are arranged opposite to each other and connected in sequence to the third arc surface segment 652 and the fourth arc surface segment 653; the third inclined surface segment 654 is arranged along the tangent direction of the third arc surface segment 652 away from the end of the second straight surface segment 651, and the fourth inclined surface segment 655 is arranged along the tangent direction of the fourth arc surface segment 653 away from the end of the second straight surface segment 651, so as to meet the processing requirements of different product contours.

[0064] The processing tool provided by the utility model can realize the processing requirements of different contours through the tool head 20, that is, one tool can meet the processing requirements of different contours of the shell, the overall structure has high strength and processing accuracy, and can ensure processing efficiency and processing accuracy.

[0065] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A machining tool, characterized in that: include: Tool bar; A cutter head, arranged at the end of the cutter rod; The cutter head has a plurality of cutting edges, which are respectively located on the outer peripheral surface of the cutter head and the end surface connected to the outer peripheral surface, and are used for processing different positions of the product contour.

2. The machining tool according to claim 1, characterized in that: The outer peripheral surface of the cutter head is concave inwardly toward the axial direction of the cutter bar to form a concave portion, or convex outwardly toward the axial direction away from the cutter bar to form a convex portion, and the surface of the concave portion or the convex portion forms a first blade portion.

3. The machining tool according to claim 2, characterized in that: The second blade portion and the third blade portion are respectively arranged on the two side end surfaces connected to the outer peripheral surface of the cutter head, and the second blade portion and the third blade portion are respectively located at the outer edges of the corresponding end surfaces.

4. The machining tool according to claim 3, characterized in that: The diameter of the tool rod is set to D1, and the diameter of the tool head is D2, then D2 / D1=1-5; the depth of the concave portion on the tool head perpendicular to the axis is h1, and D2 / h1=4-25.

5. The machining tool according to claim 4, characterized in that: The height of the cutter head is H1, the radial depth of the second cutting edge portion and the third cutting edge portion along the cutter head is h2, and the axial depth is h3, then H1 / h3=4-14, h2=((D2-D1) / 2)×2 / 3.

6. The machining tool according to claim 2, characterized in that: Spiral grooves are respectively arranged on the two side end surfaces connected to the outer peripheral surface of the cutter head, and welding pieces are arranged in the spiral grooves to form a fourth blade portion and a fifth blade portion; the ends of the welding pieces protrude from the corresponding outer edges of the spiral grooves.

7. The machining tool according to claim 6, characterized in that: The diameter of the tool rod is D11, and the diameter of the tool head is D22, then D22 / D11=1-5, the depth of the concave portion on the tool head perpendicular to the axis is h11, and D22 / h11=4-25.

8. The machining tool according to claim 7, characterized in that: The height of the cutter head is H11, the radial depth of the spiral groove is h22, and the axial depth of the spiral groove is h33, then H11 / h33=4-14, h22=((D22-D11) / 2)×2 / 3.

9. The machining tool according to claim 8, characterized in that: The effective height of the fourth blade portion and the fifth blade portion is H3, and the effective length is L3, then H3=h33+(0.05~5), L3=h22+(0.05~5).

10. The machining tool according to any one of claims 6 to 9, characterized in that: The tool rod is made of tungsten steel, stainless steel or high-speed steel, the tool head is made of PCD material, and the welding sheet is made of PCD, CBN or tungsten steel.

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