CN104439324A - 一种车床刀具 - Google Patents

一种车床刀具 Download PDF

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Publication number
CN104439324A
CN104439324A CN201410718989.XA CN201410718989A CN104439324A CN 104439324 A CN104439324 A CN 104439324A CN 201410718989 A CN201410718989 A CN 201410718989A CN 104439324 A CN104439324 A CN 104439324A
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CN
China
Prior art keywords
sidewall
side wall
knife
handle
cutting
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201410718989.XA
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English (en)
Inventor
吴美蓉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGZHOU ZHUJIANG TOOL Co Ltd
Original Assignee
CHANGZHOU ZHUJIANG TOOL Co Ltd
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 CHANGZHOU ZHUJIANG TOOL Co Ltd filed Critical CHANGZHOU ZHUJIANG TOOL Co Ltd
Priority to CN201410718989.XA priority Critical patent/CN104439324A/zh
Publication of CN104439324A publication Critical patent/CN104439324A/zh
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/005—Geometry of the chip-forming or the clearance planes, e.g. tool angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1614—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1614—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert
    • B23B27/1622—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert characterised by having a special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/04—Overall shape
    • B23B2200/0485—Trapezium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/20—Top or side views of the cutting edge
    • B23B2200/202—Top or side views of the cutting edge with curved cutting edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2205/00—Fixation of cutting inserts in holders
    • B23B2205/04—Fixation screws, bolts or pins of particular form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0204—Connection of shanks to working elements of tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Milling Processes (AREA)

Abstract

本发明涉及一种车床刀具，包括刀柄和刀头，刀柄首端的中央设有螺纹孔，刀头包括安装部和切削部，安装部设有轴向设置的沉孔，沉孔与螺纹孔等径，刀头通过螺栓与刀柄的首端固定连接，切削部设置在安装部上远离刀柄的一端，切削部与安装部的侧壁连接形成镰刀形结构，切削部包括第一侧壁、第二侧壁、第三侧壁，第一侧壁和第二侧壁之间夹钝角，第二侧壁与第三侧壁相交，第二侧壁与第三侧壁之间夹锐角，第三侧壁为弧形面，第三侧壁上近第二侧壁端设主切削刃，第二侧壁上近第三侧壁端设副切削刃。采用本方案，刀具在切削加工过程中，刀头以及切削部能够承受较大的力，提高刀具的使用寿命。

Description

一种车床刀具
技术领域
本发明涉及机械工具技术领域，具体涉及一种车床刀具。
背景技术
普通车刀一般都是一体成型，通常用于加工工件的外表面。
当加工的工件表面比较复杂时，通常需要更换不同的车刀进行切削加工，刀具的更换比较麻烦，加工效率低。
在切削加工时，车刀的刀尖和切削刃承受较大的力，而刀尖和切削刃的受力面较小，切削过程中，往往会发生切削刃爆裂的现象。
发明内容
针对上述问题，本发明的目的是提供一种结构简单、能够承受较大的力的车床刀具。
实现本发明的技术方案如下：
一种车床刀具，包括刀柄和刀头，所述刀柄的首端的中央设有螺纹孔，所述刀头包括安装部和切削部，安装部设有轴向设置的沉孔，沉孔与螺纹孔等径，刀头通过螺栓与刀柄的首端固定连接，切削部设置在安装部上远离刀柄的一端，切削部与安装部的侧壁连接形成镰刀形结构，所述切削部包括第一侧壁、第二侧壁、第三侧壁，第一侧壁、第三侧壁与安装部的侧壁之间弧形过渡，第二侧壁与第一侧壁弧形过渡，第一侧壁和第二侧壁之间夹钝角，第二侧壁与第三侧壁相交，第二侧壁与第三侧壁之间夹锐角，所述第三侧壁为弧形面，第三侧壁上近第二侧壁端设主切削刃，第二侧壁上近第三侧壁端设副切削刃。
进一步地，所述刀柄首端的周壁上设有限位槽，限位槽绕刀柄的轴线均匀分布，所述刀头上靠近刀柄的一端设有与限位槽相适配的限位块。
采用了上述的方案，刀具在切削加工过程中，刀头以及切削部能够承受较大的力，提高刀具的使用寿命。
附图说明
图1为本发明结构示意图；
图2为图1分解图；
图中，1为刀柄，2为刀头，3为螺纹孔，4为安装部，5为切削部，6为沉孔，7为螺栓，8为第一侧壁，9为第二侧壁，10为第三侧壁，11为限位槽，12为限位块。
具体实施方式
下面结合附图和具体实施例对本发明作进一步说明。
参见图1、2，一种车床刀具，包括刀柄1和刀头2，所述刀柄的首端的中央设有螺纹孔3，所述刀头包括安装部4和切削部5，安装部和切削部一体成型，安装部设有轴向设置的沉孔6，沉孔与螺纹孔等径，刀头通过螺栓7与刀柄的首端固定连接，切削部设置在安装部上远离刀柄的一端，切削部与安装部的侧壁连接形成镰刀形结构，所述切削部包括第一侧壁8、第二侧壁9、第三侧壁10，第一侧壁、第三侧壁与安装部的侧壁之间弧形过渡，第二侧壁与第一侧壁弧形过渡，第一侧壁和第二侧壁之间夹钝角，第二侧壁与第三侧壁相交，第二侧壁与第三侧壁之间夹锐角，所述第三侧壁为弧形面，第三侧壁上近第二侧壁端设主切削刃，第二侧壁上近第三侧壁端设副切削刃。
采用本发明所述的刀头进行切削加工，刀头的切削部能够承受较大的力，切削过程中不易崩裂，刀具的使用寿命得到大大提高。当刀头受损，可以直接更换刀头，而不需要将整个刀具从刀具架上拆卸下来；加工复杂的工件表面，直接更换不同的刀头就可进行切削加工。所述第三侧壁为弧形面，可便于刀具切削加工产生的切屑的排除。
进一步地，所述刀柄首端的周壁上设有限位槽11，限位槽绕刀柄的轴线均匀分布，所述刀头上靠近刀柄的一端设有与限位槽相适配的限位块12。限位槽和限位块的相互配合，从而实现对刀头的径向限位，刀头由螺栓锁定在刀柄的首端，刀头被轴向限位，如此，刀头可被紧紧固定在刀柄的首端。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (2)

1.一种车床刀具，包括刀柄和刀头，其特征在于：所述刀柄的首端的中央设有螺纹孔，所述刀头包括安装部和切削部，安装部设有轴向设置的沉孔，沉孔与螺纹孔等径，刀头通过螺栓与刀柄的首端固定连接，切削部设置在安装部上远离刀柄的一端，切削部与安装部的侧壁连接形成镰刀形结构，所述切削部包括第一侧壁、第二侧壁、第三侧壁，第一侧壁、第三侧壁与安装部的侧壁之间弧形过渡，第二侧壁与第一侧壁弧形过渡，第一侧壁和第二侧壁之间夹钝角，第二侧壁与第三侧壁相交，第二侧壁与第三侧壁之间夹锐角，所述第三侧壁为弧形面，第三侧壁上近第二侧壁端设主切削刃，第二侧壁上近第三侧壁端设副切削刃。
2.根据权利要求1所述的一种车床刀具，其特征在于：所述刀柄首端的周壁上设有限位槽，限位槽绕刀柄的轴线均匀分布，所述刀头上靠近刀柄的一端设有与限位槽相适配的限位块。
CN201410718989.XA 2014-12-01 2014-12-01 一种车床刀具 Pending CN104439324A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104772490A (zh) * 2015-03-31 2015-07-15 南京益精机械刀具制造有限公司 一种双刀尖车床加工刀具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104772490A (zh) * 2015-03-31 2015-07-15 南京益精机械刀具制造有限公司 一种双刀尖车床加工刀具

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