CN108274023A - 一种车轮机加刀具 - Google Patents

一种车轮机加刀具 Download PDF

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Publication number
CN108274023A
CN108274023A CN201810156314.9A CN201810156314A CN108274023A CN 108274023 A CN108274023 A CN 108274023A CN 201810156314 A CN201810156314 A CN 201810156314A CN 108274023 A CN108274023 A CN 108274023A
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CN
China
Prior art keywords
cutter
tool
rough turn
cutter head
shaving
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Pending
Application number
CN201810156314.9A
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English (en)
Inventor
刘鸣华
周英俊
刘伟东
刘啸
黄晓光
郭建东
刘会莹
鲁月新
于志远
周瑞晓
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Citic Dicastal Co Ltd
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Citic Dicastal Co Ltd
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Publication date
Application filed by Citic Dicastal Co Ltd filed Critical Citic Dicastal Co Ltd
Priority to CN201810156314.9A priority Critical patent/CN108274023A/zh
Publication of CN108274023A publication Critical patent/CN108274023A/zh
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B5/00Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/02Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning hubs or brake drums
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B29/00Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/24Tool holders for a plurality of cutting tools, e.g. turrets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/141Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness
    • B23B27/145Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness characterised by having a special shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2200/00Details of cutting inserts
    • B23B2200/20Top or side views of the cutting edge
    • B23B2200/201Details of the nose radius and immediately surrounding area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2200/00Details of cutting inserts
    • B23B2200/28Angles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2215/00Details of workpieces
    • B23B2215/08Automobile wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2220/00Details of turning, boring or drilling processes
    • B23B2220/44Roughing
    • B23B2220/445Roughing and finishing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2226/00Materials of tools or workpieces not comprising a metal
    • B23B2226/31Diamond
    • B23B2226/315Diamond polycrystalline [PCD]

Abstract

本发明公开了一种车轮加工刀具,在刀头两侧分别设置粗车刀具、精车刀具,粗车刀具的主偏角β设置90°~120°,精车刀具的主偏角α设置为85°~95°;粗车刀具与精车刀具的轴向高度差设置为0.2mm~0.5mm;粗车刀具与刀头间距c设置为5mm~8mm,精车刀具与刀头间距b设置为3mm~5mm。精车排屑槽均采用由刀具平面至刀头之间的圆滑过渡面,且过渡圆弧不小于8mm,粗车刀具的前角δ设置为12°~15°,精车刀具的前角γ设置为14°~17°,刀片切削刃为顺时针分布。本发明实现了一把刀具同时完成粗、精车两个工步的加工工艺,加工更高效。

Description

一种车轮机加刀具
技术领域
[0001]本发明涉及一种加工刀具,具体的说是一种加工车轮用的高效刀具。
背景技术
[0002]在机械加工中,为了更好的去除毛坯余量以及保证产品的最后尺寸精度,一般的 机加过程中都会制定粗车、精车工艺;在车轮加工中也分为粗车加工和精车加工两部分,粗 车采用刀尖圆弧半径大的刀片以提高刀具的刚度和稳定性,而精车加工则采用刀尖圆弧半 径较小的刀片来保证表面质量和尺寸精度;在现有车轮加工用的刀具中,粗车刀具与精车 刀具作为两个独立的部分分别装夹在刀塔上,粗车加工后,刀塔会退回原点进行刀具切换, 然后再进行精车加工;在现有加工参数不变的前提下,如何保证加工质量又可以节省加工 时间就成为迫切需要。
发明内容
[0003]本发明的目的是提供一种集粗车加工和精车加工于一体的高效刀具。
[0004]为实现上述目的,本发明的技术方案是:一种车轮加工刀具,包括刀柄,刀头,粗车 刀具,精车刀具,粗车排屑槽,精车排肩槽,紧固螺钉。
[0005]粗车刀片采用刀尖半径为R3的硬质合金菱形刀片,精车刀片采用刀尖半径为R0.8 聚晶金刚石菱形刀片。两把刀片以刀柄的轴线对称分布,通过紧固螺钉将粗车刀具和精车 刀具分别固定在刀头上。粗车刀具的主偏角为P,其范围值在90°〜120。,精车刀具的主偏角 为a,其范围值在85°〜95°。
[0006]为保证两刀具在加工垂直于刀柄轴线的端面不发生干涉,粗车刀具与精车刀具在 平行于刀柄轴线的方向设置高度差a,a的范围值在0.2mm〜0.5mm;考虑到粗车吃刀量比精车 吃刀量大,设置粗车刀具与刀头间距c,c的范围5mm〜8mm,精车刀具与刀头间距为b,b的范围 值在3mm〜5mm 〇
[0007]为保证加工过程中顺利排屑,粗车排屑槽,精车排肩槽均采用由刀具平面至刀头 之间的圆滑过渡面,且过渡圆弧不小于8mm。
[000S]为保证精车刀具与粗车刀具的切削刃位于通过刀柄中轴线的同一平面,粗车刀具 的前角设置为L其角度范围在12°〜15°之间,精车刀具的前角设置为Y,其角度范围在14。 〜17°之间。刀片切削刃为顺时针分布,这样在加工过程中避免出现主轴来回正、反转切换。 [0009]本发明通过将粗车刀具与精车刀具固定在同一刀头上实现了一把刀具同时完成 粗、精车两个工步的加工工艺,尤其在进行孔加工时,由于孔加工件的回转特性,本发明可 以在刀具不退回原点的情况下直接实现刀具的左偏置和右偏置两个加工功能,由此不仅减 少了粗、精车刀具的换刀时间,而且可以实现粗车、精车加工量更好的匹配,减少因为加工 量不匹配带来的刀具磨损,提高刀具寿命;由于粗、精车功能在刀塔上同占一个刀位,在实 际加工中可将其视为两把刀具使用两个刀补,也可将其视为同一把刀具使用一个刀补,增 加了实时调整刀具补偿的多样性;本发明不仅可以应用在车轮加工中,在更多的回转件加 工中都有很广的应用前景,同时具有制作简单,成本低的特点。
附图说明
[0010] 图1为本车轮机加刀具的主视图。
[0011] 图2为本车轮机加刀具的主视图。
[0012] 图3为本车轮机加刀具的右视图。
[0013]图中1-刀柄、2-刀头、3-粗车刀具、4-精车刀具、5-粗车排肩槽、6—精车排肩彳曲7_ 紧固螺钉。 ^
具体实施方式
[00M]实施例1: 一种车轮加工刀具,在刀头两侧分别设置粗车刀具3、精车刀具4,刀具 通过紧固螺钉镶嵌在刀头内的刀槽内。粗车刀具3的主偏角0为1〇〇°,精车刀具4的主偏角a 为9〇°。粗车刀具3与精车刀具4在平行于刀柄1轴线方向上的高度差a为〇.4mm,粗车刀具3与 刀头2间距c为6mm,精车刀具4与刀头2间距b为4mm。粗车刀具3的前角S设置为13°,精车刀具 4的前角y设置为15°;刀片切削刃为顺时针分布。
[0015] 本发明将原来使用粗车、精车两把刀具完成的加工轨迹集成在一把刀具上,针对 实际加工的毛坯件合理分布刀片的角度和相对位置关系可以使用一把刀具同时完成粗车、 精车过程,节约刀塔退回原点时间,节省换刀时间,同时也可以节省一把刀具的快速定位时 间,加工更高效。

Claims (1)

1.一种车轮加工刀具,包括刀柄,刀头,粗车排屑槽,精车排肩槽,紧固螺钉,其特征在 于:在刀头两侧分别设置粗车刀具、精车刀具,粗车刀具的主偏角p设置90。~ 120°,精车刀 具的主偏角a设置为邪°〜粗车刀具与精车刀具的轴向高度差设置为〇.2ram〜0.5mm;粗 车刀具与刀头间距c设置为5mm〜8mm,精车刀具与刀头间距b设置为3mm〜5mm。精车排屑槽均 采用由刀具平面至刀头之间的圆滑过渡面,且过渡圆弧不小于8mm,粗车刀具的前角S设置 为12°〜15°,精车刀具的前角r设置为14°〜17°,刀片切削刃为顺时针分布。
CN201810156314.9A 2018-02-24 2018-02-24 一种车轮机加刀具 Pending CN108274023A (zh)

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US16/032,488 US10569335B2 (en) 2018-02-24 2018-07-11 Wheel machining tool

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US20190262905A1 (en) 2019-08-29

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