WO2018176752A1 - Staggered teeth forming tool - Google Patents

Staggered teeth forming tool Download PDF

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Publication number
WO2018176752A1
WO2018176752A1 PCT/CN2017/102423 CN2017102423W WO2018176752A1 WO 2018176752 A1 WO2018176752 A1 WO 2018176752A1 CN 2017102423 W CN2017102423 W CN 2017102423W WO 2018176752 A1 WO2018176752 A1 WO 2018176752A1
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WO
WIPO (PCT)
Prior art keywords
cutting portion
forming tool
edge
cutting
present
Prior art date
Application number
PCT/CN2017/102423
Other languages
French (fr)
Chinese (zh)
Inventor
黄静
吴磊
Original Assignee
深圳市鑫国钰精密工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市鑫国钰精密工具有限公司 filed Critical 深圳市鑫国钰精密工具有限公司
Publication of WO2018176752A1 publication Critical patent/WO2018176752A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft

Definitions

  • the present invention relates to the field of machining tools, and more particularly to a tooth forming tool.
  • the milling cutter is a rotary cutter with one or more cutter teeth for milling, and the workpieces are intermittently cut off by the workpieces in order to finish the processing of the product.
  • FIG. 1 is a schematic view showing the structure of a workpiece processed by a conventional milling cutter.
  • machining the workpiece ⁇ in Fig. 1 requires machining the first part a, the second part b and the third part c of the workpiece, so three different tools are required to process three parts. Due to the large number of parts processed by the workpiece, the processing procedure is too cumbersome, resulting in an increase in customer costs. Therefore, existing tools cannot meet the needs of customers.
  • a misalignment forming tool includes a shank, a first cutting portion, a second cutting portion, and a third cutting portion, one end of the third cutting portion is connected to the first cutting portion, and the other end of the third cutting portion is The shank is connected, the second cutting portion is connected to the third cutting portion, and the first cutting portion is disposed opposite to the second cutting portion, and the cutting teeth of the first cutting portion and the cutting teeth of the second cutting portion are offset from each other.
  • the diameter of the third cutting portion is smaller than the diameter of the first cutting portion; and the diameter of the third cutting portion is smaller than the diameter of the second cutting portion.
  • the first cutting portion has a diameter of 1.99 mm to 2.01 mm ; the second cutting portion has a diameter of 1.94 mm to 1.96 mm; and the third cutting portion has a diameter of 0.75 mm. 0.85mm.
  • a distance between the first cutting portion and the second cutting portion is 0.335 mm to 0.345 mm.
  • the first cutting portion includes two spirally disposed land strips, and each of the first cutting portions has a width of 0.29 mm to 0.35 mm.
  • the land of the first cutting portion includes a rake face, a peripheral blade, and a flank face.
  • the peripheral edge is connected between the rake face and the flank face; the rake angle of the peripheral edge is 15° ⁇ 17°; the first relief angle of the peripheral edge is
  • the first cutting portion includes two symmetrically disposed end teeth, the end teeth include a front end surface, an end edge and a rear end surface, and the end edge is connected between the front end surface and the rear end surface
  • the rake angle of the end edge is 5; the first relief angle of the end edge is 9° ⁇ 11°; the second relief angle of the end edge is 21° ⁇ 23°.
  • the eccentricity of the two end teeth is 0.04 mm to 0.08 mm.
  • the second cutting portion includes two spirally disposed land strips, and the land of the second cutting portion includes a rake face, a peripheral edge and a flank face, and the peripheral edge is connected to Between the rake face and the flank face; the first relief angle of the peripheral edge is 9° ⁇ 11°; the second relief angle of the peripheral edge is 20° ⁇ 24°.
  • the second cutting portion includes end teeth, and the end teeth include a front end surface, an end edge and a rear end surface, and the end edge is connected between the front end surface and the rear end surface, and the end edge is A relief angle is 3°; the second relief angle of the end edge is 8°.
  • One end of the third cutting portion of the wrong tooth forming tool of the present invention is connected to the first cutting portion, the other end of the third cutting portion is connected to the shank, and the second cutting portion is connected to the third cutting portion, the first The cutting portion is disposed opposite to the second cutting portion, and the cutting teeth of the first cutting portion and the cutting teeth of the second cutting portion are offset from each other.
  • the wrong tooth forming tool of the present invention has three cutting portions, which can simultaneously process three parts of the workpiece, thereby reducing the processing steps and costs, and meeting the needs of the customer.
  • 1 is a schematic view showing the structure of a workpiece processed by a conventional milling cutter.
  • 2 is a schematic view of a wrong tooth forming tool of the present invention.
  • FIG 3 is a schematic view of a first cutting portion of the present invention.
  • FIG. 4 is a schematic view of a second cutting portion of the present invention.
  • FIG. 5 is a schematic view of an end portion of a wrong tooth forming tool of the present invention.
  • FIG. 6 is a partial schematic view of a first cutting portion of the present invention.
  • FIG. 7 is a partial schematic view showing a peripheral edge of a first cutting portion of the present invention.
  • FIG. 8 is a partial perspective view of the end teeth of the first cutting portion of the present invention.
  • FIG. 9 is a partial perspective view showing another end face of the first cutting portion of the present invention.
  • FIG. 10 is a partial schematic view of an end portion of a first cutting portion of the present invention.
  • FIG. 11 is a partial schematic view of a second cutting portion of the present invention.
  • FIG. 12 is a partial schematic view showing the end teeth of the second cutting portion of the present invention.
  • the wrong tooth forming tool 100 includes a shank 10, a first cutting portion 20, a second cutting portion 30, and a third cutting portion 40, and one end of the third cutting portion 40 is first
  • the cutting portion 20 is connected, the other end of the third cutting portion 40 is connected to the shank 10, the second cutting portion 30 is connected to the third cutting portion 40, and the first cutting portion 20 is disposed opposite to the second cutting portion 30, the first cutting portion
  • the cutting teeth of the portion 20 and the cutting teeth of the second cutting portion 30 are arranged offset from each other.
  • FIG. 3 is a schematic view of a first cutting portion of the present invention.
  • Fig. 4 is a schematic view of a second cutting portion of the present invention.
  • the diameter D3 of the third cutting portion 40 is smaller than the diameter D1 of the first cutting portion 20;
  • the diameter D3 of the third cutting portion 40 is smaller than the diameter D1 of the second cutting portion 30, wherein
  • the diameter D1 of a cutting portion 20 is 1.99 mm - 2.01 mm, preferably 2.0 mm;
  • the thickness hi of the first cutting portion 20 is 0.630 mm to 0.640 mm, preferably 0.635 mm;
  • the diameter D2 of the second cutting portion 30 is 1.94 mm to 1.96 mm, preferably 1.95 mm
  • the thickness h2 of the second cutting portion 30 is 0.220 mm to 0.230 mm, preferably 0.225 mm;
  • the diameter D3 of the third cutting portion 40 is 0.75 mm to 0.85 mm, preferably 0.80 mm;
  • the first cutting portion 20 includes two spirally disposed land 21 and two end teeth which are symmetrically disposed along the axis of the first cutting portion 20.
  • a spiral groove is provided between the two land strips 21, and the spiral groove has a helix angle of 24° to 26°, preferably 25°; a chip pocket is provided between the two end teeth, and the chip groove angle is 35°.
  • the width L1 of each land 21 of the first cutting portion 20 is 0.29 mm to 0.35 mm, preferably 0.32 mm.
  • the core diameter D4 of the first cutting portion 20 is 0.67 mm to 0.73 mm, preferably 0.70 mm.
  • the land of the first cutting portion 20 includes a rake face 201, a peripheral edge 202 and a flank face 203, and the peripheral edge 202 is connected between the rake face 201 and the flank face 203;
  • the rake angle ⁇ of the blade 202 is 15° to 17°, preferably 16°;
  • the first relief angle ⁇ 2 of the peripheral edge 202 is 9° to 11°, preferably 10°;
  • the second relief angle ⁇ 3 of the peripheral edge 202 is 20 ° ⁇ 24°, preferably 22°.
  • the flank face 203 includes a first blade face and a second blade face.
  • the first blade face is connected between the peripheral blade 202 and the second blade face.
  • the width L2 of the first blade face is 0.13 mm ⁇ 0.17. Mm, preferably 0.15 mm.
  • FIG. 7 is a partial schematic view showing a peripheral edge of a first cutting portion of the present invention.
  • the end portion of the peripheral edge 202 of the first cutting portion 20 is provided with a facet 204 having a width L3 of 0.03 mm to 0.07 m, preferably 0.05 mm.
  • FIG. 8 is a partial perspective view of the end teeth of the first cutting portion of the present invention.
  • Fig. 9 is a partial perspective view showing the end teeth of the first cutting portion of the present invention.
  • Fig. 10 is a partial schematic view showing the end portion of the first cutting portion of the present invention. As shown in FIG. 8, FIG. 9, and FIG.
  • the end teeth of the first cutting portion 20 include a front end surface 205, an end edge 206 and a rear end surface 207, and the end edge 206 is connected between the front end surface 205 and the rear end surface 207;
  • the front corner ⁇ 4 of 206 is 5;
  • the first rear corner ⁇ 5 of the end edge 206 is 9° to 11°, preferably 10°;
  • the second rear corner ⁇ 6 of the end edge 206 is 21° to 23°, preferably 22°.
  • the rear end surface 207 includes a first end surface and a second end surface.
  • the first end surface is connected between the end edge 206 and the second end surface.
  • the width L3 of the first end surface is 0.13 mm to 0.17 mm, preferably 0.15 mm. .
  • the eccentricity J of the two end teeth is 0.04 mm to 0.08 mm, preferably 0.06 mm. It is worth mentioning that The edge angle of the end teeth of the first cutting portion 20 is 1.5° to 2.2°.
  • FIG. 11 is a partial schematic view of a second cutting portion of the present invention.
  • Fig. 12 is a partial schematic view showing the end teeth of the second cutting portion of the present invention.
  • the second cutting portion 30 includes two spirally disposed land and end teeth, and the land of the second cutting portion 30 includes a rake face 301, a peripheral edge 302, and a flank face 303.
  • the blade 302 is connected between the rake face 301 and the flank face 303; the first relief angle ⁇ 7 of the peripheral edge 302 is 9° to 11°, preferably 10°; the second relief angle ⁇ 8 of the peripheral edge 302 is 20° ⁇ 24°, preferably 22°.
  • the flank face 303 includes a first blade face and a second blade face.
  • the first blade face is connected between the peripheral blade 302 and the second blade face.
  • the width L4 of the first blade face is 0.13 mm ⁇ 0.17. Mm, preferably 0.15 mm.
  • the end teeth of the second cutting portion 30 include a front end surface 304, an end edge 305 and a rear end surface 306, and the end edge 305 is connected between the front end surface 304 and the rear end surface 306, and the first back angle ⁇ 9 of the end edge 305 is 3°;
  • the second relief angle ⁇ ⁇ ⁇ of the blade 305 is 8°.
  • One end of the third cutting portion 40 of the wrong tooth forming tool 100 of the present invention is connected to the first cutting portion 20, the other end of the third cutting portion 40 is connected to the shank 10, and the second cutting portion 30 is connected to the third portion.
  • the first cutting portion 20 is disposed opposite to the second cutting portion 30, and the cutting teeth of the first cutting portion 20 and the cutting teeth of the second cutting portion 30 are offset from each other.
  • the wrong tooth forming tool 100 of the present invention has three cutting portions, which can simultaneously process three parts of the workpiece, thereby reducing the number of processing steps and costs, and meeting the needs of the customer.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Gear Processing (AREA)

Abstract

A staggered teeth forming tool, comprising a shank, a first cutting part, a second cutting part, and a third cutting part. One end of the third cutting part is connected to the first cutting part and the other end of the third cutting part is connected to the shank; the second cutting part is connected to the third cutting part; the first cutting part and the second cutting part are arranged oppositely; the cutting teeth of the first cutting part and the cutting teeth of the second cutting part are staggered from each other. The staggered teeth forming tool of the present invention has three cutting parts, and can simultaneously machine three parts of a workpiece, reduce machining procedures and costs and satisfy the requirements of customers.

Description

错齿成型刀具 技术领域  Wrong tooth forming tool
[0001] 本发明涉及机械加工刀具技术领域， 特别涉及一种错齿成型刀具。  [0001] The present invention relates to the field of machining tools, and more particularly to a tooth forming tool.
背景技术  Background technique
[0002] 銑刀是用于銑削加工的， 具有一个或多个刀齿的旋转刀具， 工作吋各刀齿依次 间歇地切去工件的余量， 完成对产品的加工。  [0002] The milling cutter is a rotary cutter with one or more cutter teeth for milling, and the workpieces are intermittently cut off by the workpieces in order to finish the processing of the product.
[0003] 图 1是利用普通銑刀加工的工件结构示意图。 对于客户而言， 加工图 1中的工件 吋， 需要加工工件的第一部位 a、 第二部位 b和第三部位 c， 因此需要三把不同的 刀具对应加工三个部位。 由于工件所加工部位较多， 使得加工工序太过繁琐， 导致客户成本增加。 因此， 现有的刀具不能满足客户的需求。  1 is a schematic view showing the structure of a workpiece processed by a conventional milling cutter. For the customer, machining the workpiece 图 in Fig. 1 requires machining the first part a, the second part b and the third part c of the workpiece, so three different tools are required to process three parts. Due to the large number of parts processed by the workpiece, the processing procedure is too cumbersome, resulting in an increase in customer costs. Therefore, existing tools cannot meet the needs of customers.
技术问题  technical problem
[0004] 本发明的目的在于， 提供了一种错齿成型刀具， 具有三个切削部， 能同吋加工 工件的三个部位， 降低了加工工序和成本， 能满足客户需求。  [0004] It is an object of the present invention to provide a misaligned forming tool having three cutting portions capable of simultaneously processing three parts of a workpiece, which reduces the number of processing steps and costs, and can satisfy the customer's needs.
问题的解决方案  Problem solution
技术解决方案  Technical solution
[0005] 本发明解决其技术问题是采用以下的技术方案来实现的。  [0005] The technical problem of the present invention is solved by the following technical solutions.
[0006] 一种错齿成型刀具， 包括刀杆、 第一切削部、 第二切削部和第三切削部， 第三 切削部的一端与第一切削部连接， 第三切削部的另一端与刀杆连接， 第二切削 部连接在第三切削部上， 第一切削部与第二切削部相对设置， 第一切削部的切 削齿与第二切削部的切削齿相互错幵设置。  [0006] A misalignment forming tool includes a shank, a first cutting portion, a second cutting portion, and a third cutting portion, one end of the third cutting portion is connected to the first cutting portion, and the other end of the third cutting portion is The shank is connected, the second cutting portion is connected to the third cutting portion, and the first cutting portion is disposed opposite to the second cutting portion, and the cutting teeth of the first cutting portion and the cutting teeth of the second cutting portion are offset from each other.
[0007] 在本发明的较佳实施例中， 上述第三切削部的直径小于第一切削部的直径； 第 三切削部的直径小于第二切削部的直径。  In a preferred embodiment of the present invention, the diameter of the third cutting portion is smaller than the diameter of the first cutting portion; and the diameter of the third cutting portion is smaller than the diameter of the second cutting portion.
[0008] 在本发明的较佳实施例中， 上述第一切削部的直径为 1.99mm〜2.01mm; 第二 切削部的直径为 1.94mm〜1.96mm; 第三切削部的直径为 0.75mm〜0.85mm。 In a preferred embodiment of the present invention, the first cutting portion has a diameter of 1.99 mm to 2.01 mm ; the second cutting portion has a diameter of 1.94 mm to 1.96 mm; and the third cutting portion has a diameter of 0.75 mm. 0.85mm.
[0009] 在本发明的较佳实施例中， 上述第一切削部与第二切削部之间的间距为 0.335m m〜0.345mm。 [0010] 在本发明的较佳实施例中， 上述第一切削部包括两个螺旋设置的刃带， 第一切 削部的每条刃带的宽度为 0.29mm〜0.35mm。 In a preferred embodiment of the present invention, a distance between the first cutting portion and the second cutting portion is 0.335 mm to 0.345 mm. [0010] In a preferred embodiment of the present invention, the first cutting portion includes two spirally disposed land strips, and each of the first cutting portions has a width of 0.29 mm to 0.35 mm.
[0011] 在本发明的较佳实施例中， 上述第一切削部的刃带包括前刀面、 周刃和后刀面[0011] In a preferred embodiment of the present invention, the land of the first cutting portion includes a rake face, a peripheral blade, and a flank face.
， 周刃连接于前刀面与后刀面之间； 周刃的前角为 15°〜17°； 周刃的第一后角为, the peripheral edge is connected between the rake face and the flank face; the rake angle of the peripheral edge is 15°~17°; the first relief angle of the peripheral edge is
9°〜11°； 周刃的第二后角为 20°〜24°。 9°~11°; the second relief angle of the peripheral edge is 20°~24°.
[0012] 在本发明的较佳实施例中， 上述第一切削部包括两个对称设置的端齿， 端齿包 括前端面、 端刃和后端面， 端刃连接于前端面与后端面之间； 端刃的前角为 5 ; 端刃的第一后角为 9°〜11°； 端刃的第二后角为 21°〜23°。 [0012] In a preferred embodiment of the present invention, the first cutting portion includes two symmetrically disposed end teeth, the end teeth include a front end surface, an end edge and a rear end surface, and the end edge is connected between the front end surface and the rear end surface The rake angle of the end edge is 5; the first relief angle of the end edge is 9°~11°; the second relief angle of the end edge is 21°~23°.
[0013] 在本发明的较佳实施例中， 上述两个端齿的偏心距为 0.04mm〜0.08mm。 [0013] In a preferred embodiment of the invention, the eccentricity of the two end teeth is 0.04 mm to 0.08 mm.
[0014] 在本发明的较佳实施例中， 上述第二切削部包括两个螺旋设置的刃带， 第二切 削部的刃带包括前刀面、 周刃和后刀面， 周刃连接于前刀面与后刀面之间； 周 刃的第一后角为 9°〜11°； 周刃的第二后角为 20°〜24°。 [0014] In a preferred embodiment of the present invention, the second cutting portion includes two spirally disposed land strips, and the land of the second cutting portion includes a rake face, a peripheral edge and a flank face, and the peripheral edge is connected to Between the rake face and the flank face; the first relief angle of the peripheral edge is 9°~11°; the second relief angle of the peripheral edge is 20°~24°.
[0015] 在本发明的较佳实施例中， 上述第二切削部包括端齿， 端齿包括前端面、 端刃 和后端面， 端刃连接于前端面与后端面之间， 端刃的第一后角为 3° ; 端刃的第二 后角为 8°。 [0015] In a preferred embodiment of the present invention, the second cutting portion includes end teeth, and the end teeth include a front end surface, an end edge and a rear end surface, and the end edge is connected between the front end surface and the rear end surface, and the end edge is A relief angle is 3°; the second relief angle of the end edge is 8°.
发明的有益效果  Advantageous effects of the invention
有益效果  Beneficial effect
[0016] 本发明的错齿成型刀具的第三切削部的一端与第一切削部连接， 第三切削部的 另一端与刀杆连接， 第二切削部连接在第三切削部上， 第一切削部与第二切削 部相对设置， 第一切削部的切削齿与第二切削部的切削齿相互错幵设置。 本发 明的错齿成型刀具具有三个切削部， 能同吋加工工件的三个部位， 降低了加工 工序和成本， 能满足客户需求。  [0016] One end of the third cutting portion of the wrong tooth forming tool of the present invention is connected to the first cutting portion, the other end of the third cutting portion is connected to the shank, and the second cutting portion is connected to the third cutting portion, the first The cutting portion is disposed opposite to the second cutting portion, and the cutting teeth of the first cutting portion and the cutting teeth of the second cutting portion are offset from each other. The wrong tooth forming tool of the present invention has three cutting portions, which can simultaneously process three parts of the workpiece, thereby reducing the processing steps and costs, and meeting the needs of the customer.
[0017] 上述说明仅是本发明技术方案的概述， 为了能够更清楚了解本发明的技术手段 ， 而可依照说明书的内容予以实施， 并且为了让本发明的上述和其他目的、 特 征和优点能够更明显易懂， 以下特举较佳实施例， 并配合附图， 详细说明。 对附图的简要说明  The above description is only an overview of the technical solutions of the present invention, and the technical means of the present invention can be more clearly understood, and can be implemented in accordance with the contents of the specification, and the above and other objects, features and advantages of the present invention can be further improved. It is obvious that the preferred embodiments are described below in detail with reference to the accompanying drawings. Brief description of the drawing
附图说明  DRAWINGS
[0018] 图 1是利用普通銑刀加工的工件结构示意图。 [0019] 图 2是本发明的错齿成型刀具的示意图。 1 is a schematic view showing the structure of a workpiece processed by a conventional milling cutter. 2 is a schematic view of a wrong tooth forming tool of the present invention.
[0020] 图 3是本发明的第一切削部的示意图。  3 is a schematic view of a first cutting portion of the present invention.
[0021] 图 4是本发明的第二切削部的示意图。  4 is a schematic view of a second cutting portion of the present invention.
[0022] 图 5是本发明的错齿成型刀具的端部示意图。  [0022] FIG. 5 is a schematic view of an end portion of a wrong tooth forming tool of the present invention.
[0023] 图 6是本发明的第一切削部的局部示意图。  6 is a partial schematic view of a first cutting portion of the present invention.
[0024] 图 7是本发明的第一切削部的周刃局部示意图。  7 is a partial schematic view showing a peripheral edge of a first cutting portion of the present invention.
[0025] 图 8是本发明的第一切削部的端齿一视角局部示意图。  8 is a partial perspective view of the end teeth of the first cutting portion of the present invention. [0025] FIG.
[0026] 图 9是本发明的第一切削部的端齿另一视角局部示意图。  9 is a partial perspective view showing another end face of the first cutting portion of the present invention.
[0027] 图 10是本发明的第一切削部的端部局部示意图。  10 is a partial schematic view of an end portion of a first cutting portion of the present invention.
[0028] 图 11是本发明的第二切削部的局部示意图。  11 is a partial schematic view of a second cutting portion of the present invention.
[0029] 图 12是本发明的第二切削部的端齿局部示意图。  12 is a partial schematic view showing the end teeth of the second cutting portion of the present invention.
本发明的实施方式 Embodiments of the invention
[0030] 为更进一步阐述本发明为达成预定发明目的所采取的技术手段及功效， 以下结 合附图及较佳实施例， 对依据本发明提出的错齿成型刀具的具体实施方式、 结 构、 特征及其功效， 详细说明如下：  [0030] In order to further explain the technical means and functions of the present invention for achieving the intended purpose of the invention, the specific embodiments, structures and features of the wrong tooth forming tool according to the present invention will be described below with reference to the accompanying drawings and preferred embodiments. And its efficacy, as detailed below:
[0031] 有关本发明的前述及其它技术内容、 特点及功效， 在以下配合参考图式的较佳 实施例的详细说明中将可清楚呈现。 通过具体实施方式的说明， 当可对本发明 为达成预定目的所采取的技术手段及功效得以更加深入且具体的了解， 然而所 附图式仅是提供参考与说明之用， 并非用来对本发明加以限制。  The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. The technical means and functions of the present invention for achieving the intended purpose can be more deeply and specifically understood by the description of the embodiments. However, the drawings are only for reference and description, and are not intended to be used for the present invention. limit.
[0032] 图 2是本发明的错齿成型刀具的示意图。 如图 2所示， 在本实施例中， 错齿成型 刀具 100包括刀杆 10、 第一切削部 20、 第二切削部 30和第三切削部 40， 第三切削 部 40的一端与第一切削部 20连接， 第三切削部 40的另一端与刀杆 10连接， 第二 切削部 30连接在第三切削部 40上， 第一切削部 20与第二切削部 30相对设置， 第 一切削部 20的切削齿与第二切削部 30的切削齿相互错幵设置。  2 is a schematic view of a wrong tooth forming tool of the present invention. As shown in FIG. 2, in the present embodiment, the wrong tooth forming tool 100 includes a shank 10, a first cutting portion 20, a second cutting portion 30, and a third cutting portion 40, and one end of the third cutting portion 40 is first The cutting portion 20 is connected, the other end of the third cutting portion 40 is connected to the shank 10, the second cutting portion 30 is connected to the third cutting portion 40, and the first cutting portion 20 is disposed opposite to the second cutting portion 30, the first cutting portion The cutting teeth of the portion 20 and the cutting teeth of the second cutting portion 30 are arranged offset from each other.
[0033] 图 3是本发明的第一切削部的示意图。 图 4是本发明的第二切削部的示意图。 如 图 2、 图 3和图 4所示， 第三切削部 40的直径 D3小于第一切削部 20的直径 D1 ; 第三 切削部 40的直径 D3小于第二切削部 30的直径 D1， 其中第一切削部 20的直径 D1为 1.99mm— 2.01mm, 优选为 2.0mm; 第一切削部 20的厚度 hi为 0.630mm〜0.640m m， 优选为 0.635mm; 第二切削部 30的直径 D2为 1.94mm〜1.96mm， 优选为 1.95m m; 第二切削部 30的厚度 h2为 0.220mm〜0.230mm， 优选为 0.225mm; 第三切削 部 40的直径 D3为 0.75mm〜0.85mm， 优选为 0.80mm; 第一切削部 20与第二切削 部 30之间的间距 W为 0.335mm〜0.345mm， 优选为 0.34mm。 3 is a schematic view of a first cutting portion of the present invention. Fig. 4 is a schematic view of a second cutting portion of the present invention. As shown in FIG. 2, FIG. 3 and FIG. 4, the diameter D3 of the third cutting portion 40 is smaller than the diameter D1 of the first cutting portion 20; the diameter D3 of the third cutting portion 40 is smaller than the diameter D1 of the second cutting portion 30, wherein The diameter D1 of a cutting portion 20 is 1.99 mm - 2.01 mm, preferably 2.0 mm; the thickness hi of the first cutting portion 20 is 0.630 mm to 0.640 mm, preferably 0.635 mm; and the diameter D2 of the second cutting portion 30 is 1.94 mm to 1.96 mm, preferably 1.95 mm The thickness h2 of the second cutting portion 30 is 0.220 mm to 0.230 mm, preferably 0.225 mm; the diameter D3 of the third cutting portion 40 is 0.75 mm to 0.85 mm, preferably 0.80 mm; the first cutting portion 20 and the second cutting portion The pitch W between the portions 30 is 0.335 mm to 0.345 mm, preferably 0.34 mm.
[0034] 图 5是本发明的错齿成型刀具的端部示意图。 如图 5所示， 第一切削部 20包括两 个螺旋设置的刃带 21和两个端齿， 两个端齿沿着第一切削部 20的轴线对称设置 。 两个刃带 21之间设有螺旋槽， 螺旋槽的螺旋角度为 24°〜26°， 优选为 25° ; 两 个端齿之间设有容屑槽， 容屑槽的角度为 35°。 第一切削部 20的每条刃带 21的宽 度 L1为 0.29mm〜0.35mm， 优选为 0.32mm。 在本实施例中， 第一切削部 20的芯 径 D4为 0.67mm〜0.73mm， 优选为 0.70mm。  5 is a schematic view of an end portion of a wrong tooth forming tool of the present invention. As shown in Fig. 5, the first cutting portion 20 includes two spirally disposed land 21 and two end teeth which are symmetrically disposed along the axis of the first cutting portion 20. A spiral groove is provided between the two land strips 21, and the spiral groove has a helix angle of 24° to 26°, preferably 25°; a chip pocket is provided between the two end teeth, and the chip groove angle is 35°. The width L1 of each land 21 of the first cutting portion 20 is 0.29 mm to 0.35 mm, preferably 0.32 mm. In the present embodiment, the core diameter D4 of the first cutting portion 20 is 0.67 mm to 0.73 mm, preferably 0.70 mm.
[0035] 图 6是本发明的第一切削部的局部示意图。 如图 5和图 6所示， 第一切削部 20的 刃带包括前刀面 201、 周刃 202和后刀面 203， 周刃 202连接于前刀面 201与后刀面 203之间； 周刃 202的前角 αΐ为 15°〜17°， 优选为 16° ; 周刃 202的第一后角 α2为 9° 〜11°， 优选为 10° ; 周刃 202的第二后角 οι3为 20°〜24°， 优选为 22°。 在本实施例 中， 后刀面 203包括第一刀面和第二刀面， 第一刀面连接于周刃 202与第二刀面 之间， 第一刀面的宽 L2为 0.13mm〜0.17mm， 优选为 0.15mm。  6 is a partial schematic view of a first cutting portion of the present invention. As shown in FIG. 5 and FIG. 6, the land of the first cutting portion 20 includes a rake face 201, a peripheral edge 202 and a flank face 203, and the peripheral edge 202 is connected between the rake face 201 and the flank face 203; The rake angle α of the blade 202 is 15° to 17°, preferably 16°; the first relief angle α2 of the peripheral edge 202 is 9° to 11°, preferably 10°; the second relief angle οι3 of the peripheral edge 202 is 20 °~24°, preferably 22°. In this embodiment, the flank face 203 includes a first blade face and a second blade face. The first blade face is connected between the peripheral blade 202 and the second blade face. The width L2 of the first blade face is 0.13 mm~0.17. Mm, preferably 0.15 mm.
[0036] 图 7是本发明的第一切削部的周刃局部示意图。 如图 7所示， 在本实施例中， 第 一切削部 20的周刃 202端部设有小平面 204， 小平面 204的宽 L3为 0.03mm〜0.07m m， 优选为 0.05mm。  7 is a partial schematic view showing a peripheral edge of a first cutting portion of the present invention. As shown in Fig. 7, in the present embodiment, the end portion of the peripheral edge 202 of the first cutting portion 20 is provided with a facet 204 having a width L3 of 0.03 mm to 0.07 m, preferably 0.05 mm.
[0037] 图 8是本发明的第一切削部的端齿一视角局部示意图。 图 9是本发明的第一切削 部的端齿另一视角局部示意图。 图 10是本发明的第一切削部的端部局部示意图 。 如图 8、 图 9和图 10所示， 第一切削部 20的端齿包括前端面 205、 端刃 206和后 端面 207， 端刃 206连接于前端面 205与后端面 207之间； 端刃 206的前角 οι4为 5 ; 端刃 206的第一后角 οι5为 9°〜11°， 优选为 10° ; 端刃 206的第二后角 οι6为 21°〜23° ， 优选为 22°。 在本实施例中， 后端面 207包括第一端面和第二端面， 第一端面连 接于端刃 206与第二端面之间， 第一端面的宽 L3为 0.13mm〜0.17mm， 优选为 0.1 5mm。 两个端齿的偏心距 J为 0.04mm〜0.08mm， 优选为 0.06mm。 值得一提的是 ， 第一切削部 20的端齿的刃倾角为 1.5°〜2.2°。 8 is a partial perspective view of the end teeth of the first cutting portion of the present invention. Fig. 9 is a partial perspective view showing the end teeth of the first cutting portion of the present invention. Fig. 10 is a partial schematic view showing the end portion of the first cutting portion of the present invention. As shown in FIG. 8, FIG. 9, and FIG. 10, the end teeth of the first cutting portion 20 include a front end surface 205, an end edge 206 and a rear end surface 207, and the end edge 206 is connected between the front end surface 205 and the rear end surface 207; The front corner οι4 of 206 is 5; the first rear corner οι5 of the end edge 206 is 9° to 11°, preferably 10°; and the second rear corner οι6 of the end edge 206 is 21° to 23°, preferably 22°. In this embodiment, the rear end surface 207 includes a first end surface and a second end surface. The first end surface is connected between the end edge 206 and the second end surface. The width L3 of the first end surface is 0.13 mm to 0.17 mm, preferably 0.15 mm. . The eccentricity J of the two end teeth is 0.04 mm to 0.08 mm, preferably 0.06 mm. It is worth mentioning that The edge angle of the end teeth of the first cutting portion 20 is 1.5° to 2.2°.
[0038] 图 11是本发明的第二切削部的局部示意图。 图 12是本发明的第二切削部的端齿 局部示意图。 如图 11和图 12所示， 第二切削部 30包括两个螺旋设置的刃带和端 齿， 第二切削部 30的刃带包括前刀面 301、 周刃 302和后刀面 303， 周刃 302连接 于前刀面 301与后刀面 303之间； 周刃 302的第一后角 α7为 9°〜11°， 优选为 10° ; 周刃 302的第二后角 οι8为 20°〜24°， 优选为 22°。 在本实施例中， 后刀面 303包括 第一刀面和第二刀面， 第一刀面连接于周刃 302与第二刀面之间， 第一刀面的宽 L4为 0.13mm〜0.17mm， 优选为 0.15mm。 第二切削部 30的端齿包括前端面 304、 端刃 305和后端面 306， 端刃 305连接于前端面 304与后端面 306之间， 端刃 305的 第一后角 α9为 3° ; 端刃 305的第二后角 αΐθ为 8°。  11 is a partial schematic view of a second cutting portion of the present invention. Fig. 12 is a partial schematic view showing the end teeth of the second cutting portion of the present invention. As shown in FIGS. 11 and 12, the second cutting portion 30 includes two spirally disposed land and end teeth, and the land of the second cutting portion 30 includes a rake face 301, a peripheral edge 302, and a flank face 303. The blade 302 is connected between the rake face 301 and the flank face 303; the first relief angle α7 of the peripheral edge 302 is 9° to 11°, preferably 10°; the second relief angle οι8 of the peripheral edge 302 is 20°~ 24°, preferably 22°. In the embodiment, the flank face 303 includes a first blade face and a second blade face. The first blade face is connected between the peripheral blade 302 and the second blade face. The width L4 of the first blade face is 0.13 mm~0.17. Mm, preferably 0.15 mm. The end teeth of the second cutting portion 30 include a front end surface 304, an end edge 305 and a rear end surface 306, and the end edge 305 is connected between the front end surface 304 and the rear end surface 306, and the first back angle α9 of the end edge 305 is 3°; The second relief angle α ΐ θ of the blade 305 is 8°.
[0039] 本发明的错齿成型刀具 100的第三切削部 40的一端与第一切削部 20连接， 第三 切削部 40的另一端与刀杆 10连接， 第二切削部 30连接在第三切削部 40上， 第一 切削部 20与第二切削部 30相对设置， 第一切削部 20的切削齿与第二切削部 30的 切削齿相互错幵设置。 本发明的错齿成型刀具 100具有三个切削部， 能同吋加工 工件的三个部位， 降低了加工工序和成本， 能满足客户需求。  [0039] One end of the third cutting portion 40 of the wrong tooth forming tool 100 of the present invention is connected to the first cutting portion 20, the other end of the third cutting portion 40 is connected to the shank 10, and the second cutting portion 30 is connected to the third portion. In the cutting portion 40, the first cutting portion 20 is disposed opposite to the second cutting portion 30, and the cutting teeth of the first cutting portion 20 and the cutting teeth of the second cutting portion 30 are offset from each other. The wrong tooth forming tool 100 of the present invention has three cutting portions, which can simultaneously process three parts of the workpiece, thereby reducing the number of processing steps and costs, and meeting the needs of the customer.
[0040] 以上结合附图详细描述了本发明的优选实施方式， 但是本发明并不限于上述实 施方式中的具体细节， 在本发明的技术构思范围内， 可以对本发明的技术方案 进行多种简单变型， 这些简单变型均属于本发明的保护范围。 在上述具体实施 方式中所描述的各个具体技术特征， 在不矛盾的情况下， 可以通过任何合适的 方式进行组合。 为了避免不必要的重复， 本发明对各种可能的组合方式不再另 行说明。  The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the embodiments described above, and the technical solutions of the present invention may be variously simple within the scope of the technical idea of the present invention. Modifications, these simple variants are all within the scope of the invention. The specific technical features described in the above specific embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not be described again in terms of various possible combinations.

Claims

权利要求书 Claim
[权利要求 1] 一种错齿成型刀具， 其特征在于， 包括刀杆 （10) 、 第一切削部 （20  [Claim 1] A wrong tooth forming tool, comprising: a cutter bar (10), a first cutting portion (20)
) 、 第二切削部 （30) 和第三切削部 （40) ， 该第三切削部 （40) 的 一端与该第一切削部 （20) 连接， 该第三切削部 （40) 的另一端与该 刀杆 （10) 连接， 该第二切削部 （30) 连接在该第三切削部 （40) 上 ， 该第一切削部 （20) 与该第二切削部 （30) 相对设置， 该第一切削 部 （20) 的切削齿与该第二切削部 （30) 的切削齿相互错幵设置。  a second cutting portion (40) and a third cutting portion (40), one end of the third cutting portion (40) is connected to the first cutting portion (20), and the other end of the third cutting portion (40) Connected to the arbor (10), the second cutting portion (30) is connected to the third cutting portion (40), and the first cutting portion (20) is opposite to the second cutting portion (30). The cutting teeth of the first cutting portion (20) and the cutting teeth of the second cutting portion (30) are arranged offset from each other.
[权利要求 2] 如权利要求 1所述的错齿成型刀具， 其特征在于， 该第三切削部 （40  [Claim 2] The wrong tooth forming tool according to claim 1, wherein the third cutting portion (40)
) 的直径小于该第一切削部 （20) 的直径； 该第三切削部 （40) 的直 径小于该第二切削部 （30) 的直径。  The diameter of the third cutting portion (20) is smaller than the diameter of the second cutting portion (30).
[权利要求 3] 如权利要求 2所述的错齿成型刀具， 其特征在于， 该第一切削部 （20  [Claim 3] The wrong tooth forming tool according to claim 2, wherein the first cutting portion (20)
) 的直径为 1.99mm〜2.01mm; 该第二切削部 （30) 的直径为 1.94mm 〜1.96mm; 该第三切削部 （40) 的直径为 0.75mm〜0.85mm。  The diameter of the second cutting portion (30) is 1.94 mm to 1.96 mm; the diameter of the third cutting portion (40) is 0.75 mm to 0.85 mm.
[权利要求 4] 如权利要求 1所述的错齿成型刀具， 其特征在于， 该第一切削部 （20  [Claim 4] The wrong tooth forming tool according to claim 1, wherein the first cutting portion (20)
) 与该第二切削部 （30) 之间的间距为 0.335mm〜0.345mm。  The distance from the second cutting portion (30) is 0.335 mm to 0.345 mm.
[权利要求 5] 如权利要求 1所述的错齿成型刀具， 其特征在于， 该第一切削部 （20  [Claim 5] The wrong tooth forming tool according to claim 1, wherein the first cutting portion (20)
) 包括两个螺旋设置的刃带 （21) ， 该第一切削部 （20) 的每条刃带 (21) 的宽度为 0.29mm〜0.35mm。  The blade (21) includes two spirals, and each blade (21) of the first cutting portion (20) has a width of 0.29 mm to 0.35 mm.
[权利要求 6] 如权利要求 5所述的错齿成型刀具， 其特征在于， 该第一切削部 （20  [Claim 6] The wrong tooth forming tool according to claim 5, wherein the first cutting portion (20)
) 的刃带 （21) 包括前刀面 （201) 、 周刃 （202) 和后刀面 （202) ， 该周刃 （202) 连接于该前刀面 （201) 与该后刀面 （203) 之间； 该周刃 （202) 的前角为 15°〜17°； 该周刃 （202) 的第一后角为 9°〜 11° ; 该周刃 （202) 的第二后角为 20°〜24°。  The blade (21) includes a rake face (201), a peripheral edge (202), and a flank face (202), and the peripheral edge (202) is coupled to the rake face (201) and the flank face (203) The rake angle of the circumferential edge (202) is 15°~17°; the first relief angle of the circumferential edge (202) is 9°~11°; the second relief angle of the circumferential edge (202) is 20 ° ~ 24 °.
[权利要求 7] 如权利要求 1所述的错齿成型刀具， 其特征在于， 该第一切削部 （20  [Claim 7] The wrong tooth forming tool according to claim 1, wherein the first cutting portion (20)
) 包括两个对称设置的端齿， 该端齿包括前端面 （205) 、 端刃 （206 ) 和后端面 （207) ， 该端刃 （206) 连接于该前端面 （205) 与该后 端面 （207) 之间； 该端刃 （206) 的前角为 5 ; 该端刃 （206) 的第一 后角为 9°〜11°； 该端刃 （206) 的第二后角为 21°〜23°。 The utility model comprises two symmetrically arranged end teeth, the end tooth comprises a front end surface (205), an end edge (206) and a rear end surface (207), the end edge (206) being connected to the front end surface (205) and the rear end surface Between (207); the leading edge of the end edge (206) is 5; the first relief angle of the end edge (206) is 9°~11°; the second relief angle of the end edge (206) is 21° ~23°.
[权利要求 8] 如权利要求 7所述的错齿成型刀具， 其特征在于， 该两个端齿的偏心 距为 0.04mm〜0.08mm。 [Claim 8] The wrong tooth forming tool according to claim 7, wherein the eccentricity of the two end teeth is 0.04 mm to 0.08 mm.
[权利要求 9] 如权利要求 1所述的错齿成型刀具， 其特征在于， 该第二切削部 （30 [Claim 9] The wrong tooth forming tool according to claim 1, wherein the second cutting portion (30)
) 包括两个螺旋设置的刃带， 该第二切削部 （30) 的刃带包括前刀面 (301) 、 周刃 （302) 和后刀面 （303) ， 该周刃 （302) 连接于该前 刀面 （301) 与该后刀面 （303) 之间； 该周刃 （302) 的第一后角为 9 °〜11°； 该周刃 （302) 的第二后角为 20°〜24°。  a blade comprising two spirals, the land of the second cutting portion (30) comprising a rake face (301), a peripheral edge (302) and a flank face (303), the peripheral edge (302) being connected to The rake face (301) and the flank face (303); the first back angle of the peripheral edge (302) is 9 ° 11 11 °; the second back angle of the peripheral edge (302) is 20 ° ~24°.
[权利要求 10] 如权利要求 1所述的错齿成型刀具， 其特征在于， 该第二切削部 （30  [Claim 10] The wrong tooth forming tool according to claim 1, wherein the second cutting portion (30)
) 包括端齿， 该端齿包括前端面 （304) 、 端刃 （305) 和后端面 （30 6) ， 该端刃 （305) 连接于该前端面 （304) 与该后端面 （306) 之间 ， 该端刃 （305) 的第一后角为 3° ; 该端刃 （305) 的第二后角为 8°。  The end tooth includes a front end face (304), an end edge (305) and a rear end face (30 6), and the end edge (305) is coupled to the front end face (304) and the rear end face (306) The first relief angle of the end edge (305) is 3°; the second relief angle of the end edge (305) is 8°.
PCT/CN2017/102423 2017-04-01 2017-09-20 Staggered teeth forming tool WO2018176752A1 (en)

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