CN110712075A - Negative chamfering machining clamp for cutter and using method of negative chamfering machining clamp - Google Patents
Negative chamfering machining clamp for cutter and using method of negative chamfering machining clamp Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000003754 machining Methods 0.000 title claims 6
- 239000004677 Nylon Substances 0.000 claims description 10
- 229920001778 nylon Polymers 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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Abstract
本发明提供一种刀具负倒棱加工夹具及其使用方法,属于机械加工领域。该装置包括位置调节机构、转轴机构和角度调节机构三个部分。负倒棱的加工目前主要依靠国外进口的专用可转位刀具数控精密磨床和专用负倒棱夹具辅助的普通磨床磨削。借助国外专用可转位刀具数控精密磨床磨削的负倒棱精度高质量稳定,但设备投资大;而国内利用专用负倒棱夹具的普通磨床磨削,设备投资少,但磨削的负倒棱精度低质量不稳定,且操作不方便。本发明扩大普通磨床的加工范围,使得在普通磨床上能够加工出精度较高质量稳定的负倒棱;同时结构简单,操作方便,提高刀具加工生产效率,降低生产成本。
The invention provides a tool negative chamfering processing fixture and a using method thereof, belonging to the field of mechanical processing. The device includes three parts: a position adjusting mechanism, a rotating shaft mechanism and an angle adjusting mechanism. At present, the processing of negative chamfering mainly relies on the special indexable tool CNC precision grinder imported from abroad and the ordinary grinder assisted by the special negative chamfering fixture. With the help of foreign special indexable tool CNC precision grinder, the precision of negative chamfering is high quality and stable, but the equipment investment is large; while the ordinary grinder grinding using special negative chamfering fixture in China has less equipment investment, but the negative chamfering of grinding. The edge precision is low, the quality is unstable, and the operation is inconvenient. The invention expands the processing range of the common grinding machine, so that the common grinding machine can process the negative chamfer with high precision and stable quality; meanwhile, the structure is simple, the operation is convenient, the tool processing production efficiency is improved, and the production cost is reduced.
Description
技术领域technical field
本发明属于机械加工领域,具体涉及一种刀具负倒棱加工夹具及其使用方法。The invention belongs to the field of mechanical processing, and particularly relates to a tool negative chamfering processing fixture and a method for using the same.
背景技术Background technique
刀具的负倒棱是在刀具刃口处磨削出的宽度约为0.1~0.2mm的负前角平面,以此增大刀具楔角提高刀具强度,同时改变散热条件,可在强化刀刃又使切削力增加不多的基础上提高刀具的耐用度。在许多硬质合金刀具、陶瓷刀具、PCBN刀具及各种机夹刀片上均采用磨削负倒棱的方式增加刀刃强度。The negative chamfering of the tool is a negative rake angle plane with a width of about 0.1-0.2mm that is ground at the cutting edge of the tool, so as to increase the wedge angle of the tool to improve the strength of the tool, and at the same time change the heat dissipation conditions, which can strengthen the cutting edge. On the basis of not increasing the cutting force, the durability of the tool is improved. On many carbide tools, ceramic tools, PCBN tools and various machine-clamped blades, the method of grinding negative chamfers is used to increase the strength of the cutting edge.
负倒棱的加工目前主要依靠国外进口的专用可转位刀具数控精密磨床和专用负倒棱夹具辅助的普通磨床磨削。由于国外对于精密磨削先进技术存在技术堡垒,一些国外精密数控磨床我们很难一窥究竟;而国内刀具加工工厂自主设计的负倒棱夹具相对简陋所磨削的负倒棱质量较差,操作起来不方便,故为有效方便的加工各种刀具的负倒棱,而又不需借助国外昂贵的刀具精密磨床,我们旨在设计一种刀具负倒棱磨削夹具,扩大普通磨床的加工范围,使我们能够在普通磨床上磨削出质量较高的负倒棱刀具。At present, the processing of negative chamfering mainly relies on the special indexable tool CNC precision grinder imported from abroad and the ordinary grinder assisted by the special negative chamfering fixture. Due to the existence of technological fortresses in advanced precision grinding technology abroad, it is difficult for us to get a glimpse of some foreign precision CNC grinding machines; while the negative chamfering fixtures independently designed by domestic tool processing factories are relatively poor in quality and poor in operation. It is inconvenient to get up, so in order to effectively and conveniently process the negative chamfers of various tools without resorting to foreign expensive tool precision grinders, we aim to design a tool negative chamfer grinding fixture to expand the processing range of ordinary grinders , so that we can grind high-quality negative chamfering tools on ordinary grinding machines.
发明内容SUMMARY OF THE INVENTION
本发明的目的就在于解决上述问题,提供一种新型刀具负倒棱加工夹具。The purpose of the present invention is to solve the above problems, and to provide a new tool negative chamfering jig.
本发明采用的技术方案如下:The technical scheme adopted in the present invention is as follows:
一种刀具负倒棱加工夹具,包括位置调节机构、转轴机构和角度调节机构。A tool negative chamfering processing fixture comprises a position adjusting mechanism, a rotating shaft mechanism and an angle adjusting mechanism.
所述的位置调节机构包括刀架1、上滑块2、第一丝杠螺栓3、中间滑块4、转轴5、刀具夹块6、刀具7和第二丝杠螺栓8。The position adjustment mechanism includes a
所述刀架1前侧面设有用于刀具定位的八字形定位挡板和用于刀架固定螺栓安装的柱形沉头孔;刀架1底部设有一个用于安装刀具夹块6的T形槽,T形槽前端与刀架前侧面相通,T形槽槽向与八字形定位挡板开口方向相对,T形槽顶部设有用于刀具夹块6固定的螺栓孔;刀架1后侧面设有用于刀架安装定位的定位块。所述刀架1需根据所加工的不同刀具型号更换不同的刀架以此满足不同刀具负倒棱磨削的需求。The front side of the
所述上滑块2为不规则结构,其前侧面设有用于刀架1定位的定位槽和用于刀架1固定的螺栓孔;后部设有一个矩形槽,矩形槽中间设有螺母结构,该螺母结构与第二丝杠螺栓8配合运动可使上滑块2带动刀架1沿Y方向运动;矩形槽侧面设有螺栓孔,安装夹紧螺栓,用于固定上滑块2。The
所述第一丝杠螺栓3为一内六角螺栓,在其靠近螺栓头位置设一环形半圆槽,用于将第一丝杠螺栓3通过销柱安装于转轴5前端的T形滑块上。The first
所述中间滑块4为不规则结构,其前端设有矩形滑块,矩形滑块可沿上滑块2后侧面的矩形槽滑动,矩形滑块内设有一凹槽,用于安装上滑块2的螺母结构,矩形滑块前侧面设有销孔通过销柱固定安装第二丝杠螺栓8。中间滑块4后端中部设有一矩形槽,前端的矩形滑块与后端的矩形槽空间位置垂直,矩形槽中间同样设有一个螺母结构,该螺母结构与第一丝杠螺栓3的配合运动可使中间滑块4带动上滑块2与刀架1沿X方向运动;矩形槽侧面设有一螺栓孔,用来安装一夹紧螺栓固定转轴5前端T形滑块在矩形槽的位置。The
所述刀具夹块6为一T形块,刀具夹块6能够沿刀架1侧面的T形槽滑动,T形块前端设有一凹槽,可以实现四边形刀具的装夹;凹槽两侧棱边设有相应的倒角方便刀具装夹。The
所述刀具7通过刀架1前端面的八字形定位挡板进行定位,并通过刀具夹块6和一内六角螺栓固定在刀架1上。The
所述的第二丝杠螺栓8为一内六角螺栓,在其靠近螺栓头位置设一环形半圆槽,用于将第二丝杠螺栓8通过销柱安装于中间滑块4前端面的矩形滑块上。The second lead screw bolt 8 is a hexagon socket head bolt, and an annular semicircular groove is set near the bolt head for mounting the second lead screw bolt 8 on the rectangular slide on the front end surface of the
所述的转轴机构包括转轴5、转轴基座9和摇把10。The rotating shaft mechanism includes a rotating
所述转轴5前端设有一T形滑块,T形滑块可沿中间滑块4后端的矩形槽滑动;T形滑块中间设有一个凹槽,用于与中间滑块4的螺母结构配合,T形滑块前侧面设有销孔用于安装第一丝杠螺栓3。所述转轴5中部放置在转轴基座9上部水平方向的阶梯通孔内,放置后,转轴5水平方向通过螺母顶紧。所述转轴5后端设有一螺纹通孔用于安装摇把10。The front end of the rotating
所述转轴基座9为一阶梯矩形块结构,其上部垂直于前侧面方向设有一阶梯通孔,阶梯孔前后两侧直径较大用于安装深沟球轴承,保证转轴5在工作情况下的平稳运转。转轴基座9顶部设有螺纹孔,安装一内六角螺栓用于固定转轴5防止其在调节位置调节机构时转动。转轴基座9底部阶梯台左右侧面设有通孔用于安装夹紧轴13,固定转轴基座9的位置,底部阶梯台后侧面设有两螺纹孔用于安装角度指针14。The rotating
所述摇把10为设有一阶梯台的锥形圆柱体,端部直径尺寸较小位置处设有螺纹,用于与转轴5相连带动转轴5转动。所述摇把10用于增大转轴5的旋转半径,方便操作员旋转转轴5。The
所述转轴5中部贯穿转轴基座9的阶梯通孔,转轴5前端T形滑块后端面通过平垫圈与转轴基座9阶梯孔前侧配合的深沟球轴承接触,平垫圈外径尺寸略小于深沟球轴承外圈的内径尺寸,保证平垫圈与深沟球轴承的内圈相贴合,使得转轴5能随深沟球轴承内圈旋转而旋转。转轴基座9阶梯孔后侧配合的深沟球轴承与一推力球轴承贴合,与同转轴5中部螺纹配合的紧固螺栓共同保证转轴5的固定。The middle part of the rotating
所述的角度调节机构包括夹紧销11、尼龙套12、夹紧轴13、角度指针14和基座15。The angle adjustment mechanism includes a
所述夹紧轴13为设有两阶梯台的圆柱轴。在其一端直径最小部分设有螺纹,穿过转轴基座9底部阶梯台,将夹紧轴13固定在基座15上;另一端直径最大部分设有一销柱孔,用于安装夹紧销11方便操作员旋转夹紧轴13;中间光轴部分用于与转轴基座9相配合固定转轴基座9的位置。The
所述夹紧销11一端为半球头,半球头直径大于夹紧轴13的销柱孔内径,另一端为椭圆柱,中部为圆柱结构。夹紧销11中部穿过夹紧轴13的销柱孔,半球头与椭圆柱尾部使其能够上下窜动而不脱离夹紧轴13。夹紧销11可使其在本身尺寸较小的情况下方便操作员旋转夹紧轴13。One end of the
所述尼龙套12为尼龙材料圆环,安装在夹紧轴13与转轴基座9之间确保夹紧时不损伤两零件表面。The nylon sleeve 12 is a nylon material ring, which is installed between the
所述角度指针14为一L形角铁。其一侧成三角状,通过三角形顶角与基座15左侧面的不同角度刻度线相重合来保证转轴基座9旋转确定的角度;另一侧设有两螺纹孔,用于将角度指针安装于转轴基座9。The
所述基座15左侧面设有一沉头螺栓孔用于安装夹紧轴13,固定转轴基座9的位置;左侧面上还设有角度刻度,用于与角度指针14三角顶尖相重合确定转轴基座9所旋转的角度;右侧面设有一楔形槽,后侧面设有一销柱孔,用于安装一销柱将普通磨床刀架卡入楔形槽中,固定基座15于普通磨床刀架上。The left side of the
所述位置调节机构需在加工一批同规格刀具前借助体视显微镜进行调节,保证刀具的刀尖圆弧与转轴5的轴心重合。The position adjustment mechanism needs to be adjusted by means of a stereo microscope before processing a batch of tools of the same specification to ensure that the arc of the tool tip coincides with the axis of the rotating
一种刀具负倒棱加工夹具的使用方法,步骤如下:A method for using a tool negative chamfering fixture, the steps are as follows:
第一步,首先,刀具负倒棱加工夹具组装完成后,将基座15固定于体视显微镜工作台上后,手握夹紧销11旋转夹紧轴13,使其转轴基座9能够绕夹紧轴13转动。其次,转动转轴基座9使转轴5竖直,然后再次手握夹紧销11旋转夹紧轴13,固定转轴基座9的位置。最后,松开刀具夹块6后的夹紧螺栓,将刀具7放置在刀架1的八字形定位挡板上,然后旋转刀具夹紧螺栓带动刀具夹块6夹紧刀具。The first step, first, after the tool negative chamfering processing fixture is assembled, after fixing the
第二步,松开中间滑块4侧面的滑块夹紧螺栓,通过调节第一丝杠螺栓3对刀具7X方向相对于转轴的位置进行调节;松开上滑块2侧面的滑块夹紧螺栓,通过调节第二丝杠螺栓8对刀具7Y方向相对于转轴的位置进行调节。通过对刀具7X、Y方向位移量的调节来保证刀具7刀尖圆弧的圆心与转轴5轴心重合。The second step is to loosen the slider clamping bolt on the side of the
第三步,刀具7刀尖圆弧的圆心与转轴5轴心调节重合后,旋转中间滑块4侧面的滑块夹紧螺栓,固定刀具7相对于转轴在X方向的位置;旋转上滑块2侧面的滑块夹紧螺栓,固定刀具7相对于转轴在Y方向的位置;松开基座15在体视显微镜工作台上的固定,将刀具负倒棱加工夹具移至普通磨床工作台,固定基座15于普通磨床刀架上。In the third step, after the center of the tool nose arc of
第四步,手握夹紧销11旋转夹紧轴13,松开转轴基座9的固定,手动旋转转轴基座9,使其带动的转轴5与竖直面呈一定角度,角度的大小为所需磨削负倒棱的角度,通过保证角度指针14三角顶尖与基座15上的角度刻度重合来保证角度准确性。所磨削的负倒棱宽度通过普通磨床的微进给机构进行调节。The fourth step is to hold the
第五步,进行磨削,磨削时旋转摇把10保证刀具主副切削刃与刀尖圆弧处的负倒棱磨削,在磨削完一把刀具后松开刀具夹块6后的夹紧螺栓卸下刀具后进行下一把刀具的负倒棱磨削。因为同一批次刀具规格相同所以不需要再进行重新对刀,只需要安装新的刀具后重复磨削即可。The fifth step is to carry out grinding. When grinding, rotate the crank handle 10 to ensure that the main and auxiliary cutting edges of the tool and the negative chamfering of the tool tip arc are ground. After grinding a tool, release the
本发明的有益效果:设计发明的一种负倒棱磨削夹具,能够实现刀具主副切削刃以及刀尖圆弧处一定角度宽度负倒棱的均匀磨削。一方面使用方便,同种规格的刀具在进行一次位置调节后可以进行成批量的加工;另一方面刀具靠刀具夹块进行定位,装夹方便,批量生产加工效率高。本发明结构简单、制造和使用方便,磨削刀具负倒棱质量较高。Beneficial effects of the invention: a negative chamfering grinding fixture is designed and invented, which can realize uniform grinding of the main and auxiliary cutting edges of the tool and the negative chamfering with a certain angle and width at the arc of the tool tip. On the one hand, it is convenient to use, and tools of the same specification can be processed in batches after one position adjustment; The invention has the advantages of simple structure, convenient manufacture and use, and high negative chamfering quality of the grinding tool.
附图说明Description of drawings
图1是本发明实施例中立体结构示意图。FIG. 1 is a schematic diagram of a three-dimensional structure in an embodiment of the present invention.
图2为本发明实施例中位置调节机构结构下侧面轴测示意图;Fig. 2 is the axonometric schematic diagram of the lower side of the structure of the position adjustment mechanism in the embodiment of the present invention;
图3为本发明实施例中位置调节机构结构上侧面轴测示意图;FIG. 3 is a schematic axonometric view of the upper side of the structure of the position adjustment mechanism in the embodiment of the present invention;
图4是本发明实施例中转轴结构示意图。FIG. 4 is a schematic structural diagram of a rotating shaft in an embodiment of the present invention.
图5为本发明实施例中角度调节机构示意图;5 is a schematic diagram of an angle adjustment mechanism in an embodiment of the present invention;
图6为本发明实施例中角度调节机构右侧面示意图;6 is a schematic diagram of the right side of the angle adjustment mechanism in the embodiment of the present invention;
图7为本发明实施例中上滑块2结构示意图;FIG. 7 is a schematic structural diagram of the
图8为本发明实施例中中间滑块4结构示意图;FIG. 8 is a schematic structural diagram of the
图9为本发明实施例中第二丝杠螺栓8结构示意图;FIG. 9 is a schematic structural diagram of the second lead screw bolt 8 in the embodiment of the present invention;
图10为本发明实施例中转轴5结构示意图;10 is a schematic structural diagram of the
图中:刀架1、上滑块2、第一丝杠螺栓3、中间滑块4、转轴5、刀具夹块6、刀具7、第二丝杠螺栓8、转轴基座9、摇把10、夹紧销11、尼龙套12、夹紧轴13、角度指针14、基座15。In the figure:
具体实施方式Detailed ways
下面将结合具体实施例和附图对本发明的技术方案进行进一步的说明。The technical solutions of the present invention will be further described below with reference to specific embodiments and accompanying drawings.
一种刀具负倒棱加工夹具,包括位置调节机构、转轴机构和角度调节机构。A tool negative chamfering processing fixture comprises a position adjusting mechanism, a rotating shaft mechanism and an angle adjusting mechanism.
所述的位置调节机构包括刀架1、上滑块2、第一丝杠螺栓3、中间滑块4、转轴5、刀具夹块6、刀具7和第二丝杠螺栓8。The position adjustment mechanism includes a
所述刀架1前侧面设有用于刀具定位的八字形定位挡板和用于刀架固定螺栓安装的柱形沉头孔;刀架1底部设有一个用于安装刀具夹块6的T形槽,T形槽前端与刀架前侧面相通,T形槽槽向与八字形定位挡板开口方向相对,T形槽顶部设有用于刀具夹块6固定的螺栓孔;刀架1后侧面设有用于刀架安装定位的定位块。所述刀架1需根据所加工的不同刀具型号更换不同的刀架以此满足不同刀具负倒棱磨削的需求。The front side of the
所述上滑块2为不规则结构,其前侧面设有用于刀架1定位的定位槽和用于刀架1固定的螺栓孔;后部设有一个矩形槽,矩形槽中间设有螺母结构,该螺母结构与第二丝杠螺栓8配合运动可使上滑块2带动刀架1沿Y方向运动;矩形槽侧面设有螺栓孔,安装夹紧螺栓,用于固定上滑块2。The
所述第一丝杠螺栓3为一内六角螺栓,在其靠近螺栓头位置设一环形半圆槽,用于将第一丝杠螺栓3通过销柱安装于转轴5前端的T形滑块上。The first
所述中间滑块4为不规则结构,其前端设有矩形滑块,矩形滑块可沿上滑块2后侧面的矩形槽滑动,矩形滑块内设有一凹槽,用于安装上滑块2的螺母结构,矩形滑块前侧面设有销孔通过销柱固定安装第二丝杠螺栓8。中间滑块4后端中部设有一矩形槽,前端的矩形滑块与后端的矩形槽空间位置垂直,矩形槽中间同样设有一个螺母结构,该螺母结构与第一丝杠螺栓3的配合运动可使中间滑块4带动上滑块2与刀架1沿X方向运动;矩形槽侧面设有一螺栓孔,用来安装一夹紧螺栓固定转轴5前端T形滑块在矩形槽的位置。The
所述刀具夹块6为一T形块,刀具夹块6能够沿刀架1侧面的T形槽滑动,T形块前端设有一凹槽,可以实现四边形刀具的装夹;凹槽两侧棱边设有相应的倒角方便刀具装夹。The
所述刀具7通过刀架1前端面的八字形定位挡板进行定位,并通过刀具夹块6和一内六角螺栓固定在刀架1上。The
所述的第二丝杠螺栓8为一内六角螺栓,在其靠近螺栓头位置设一环形半圆槽,用于将第二丝杠螺栓8通过销柱安装于中间滑块4前端面的矩形滑块上。The second lead screw bolt 8 is a hexagon socket head bolt, and an annular semicircular groove is set near the bolt head for mounting the second lead screw bolt 8 on the rectangular slide on the front end surface of the
所述的转轴机构包括转轴5、转轴基座9和摇把10。The rotating shaft mechanism includes a
所述转轴5前端设有一T形滑块,T形滑块可沿中间滑块4后端的矩形槽滑动;T形滑块中间设有一个凹槽,用于与中间滑块4的螺母结构配合,T形滑块前侧面设有销孔用于安装第一丝杠螺栓3。所述转轴5中部放置在转轴基座9上部水平方向的阶梯通孔内,放置后,转轴5水平方向通过螺母顶紧。所述转轴5后端设有一螺纹通孔用于安装摇把10。The front end of the
所述转轴基座9为一阶梯矩形块结构,其上部垂直于前侧面方向设有一阶梯通孔,阶梯孔前后两侧直径较大用于安装深沟球轴承,保证转轴5在工作情况下的平稳运转。转轴基座9顶部设有螺纹孔,安装一内六角螺栓用于固定转轴5防止其在调节位置调节机构时转动。转轴基座9底部阶梯台左右侧面设有通孔用于安装夹紧轴13,固定转轴基座9的位置,底部阶梯台后侧面设有两螺纹孔用于安装角度指针14。The
所述摇把10为设有一阶梯台的锥形圆柱体,端部直径尺寸较小位置处设有螺纹,用于与转轴5相连带动转轴5转动。所述摇把10用于增大转轴5的旋转半径,方便操作员旋转转轴5。The crank handle 10 is a conical cylindrical body with a stepped platform, and a thread is provided at the position where the diameter of the end portion is small, which is used for connecting with the
所述转轴5后部的阶梯轴贯穿转轴基座9的阶梯通孔,转轴5前端T形滑块后端面通过平垫圈与转轴基座9阶梯孔前侧配合的深沟球轴承接触,平垫圈外径尺寸略小于深沟球轴承外圈的内径尺寸,保证平垫圈与深沟球轴承的内圈相贴合,使得转轴5能随深沟球轴承内圈旋转而旋转。转轴基座9阶梯孔后侧配合的深沟球轴承与一推力球轴承贴合,与同转轴5中部螺纹配合的紧固螺栓共同保证转轴5的固定。The stepped shaft at the rear of the
所述的角度调节机构包括夹紧销11、尼龙套12、夹紧轴13、角度指针14和基座15。The angle adjustment mechanism includes a clamping
所述夹紧轴13为设有两阶梯台的圆柱轴。在其一端直径最小部分设有螺纹,穿过转轴基座9底部阶梯台,将夹紧轴13固定在基座15上;另一端直径最大部分设有一销柱孔,用于安装夹紧销11方便操作员旋转夹紧轴13;中间光轴部分用于与转轴基座9相配合固定转轴基座9的位置。The clamping
所述夹紧销11一端为半球头,半球头直径大于夹紧轴13的销柱孔内径,另一端为椭圆柱,中部为圆柱结构。夹紧销11中部穿过夹紧轴13的销柱孔,半球头与椭圆柱尾部使其能够上下窜动而不脱离夹紧轴13。夹紧销11可使其在本身尺寸较小的情况下方便操作员旋转夹紧轴13。One end of the clamping
所述尼龙套12为尼龙材料圆环,用于安装在夹紧轴13与转轴基块9之间确保夹紧时不损伤两零件表面。The nylon sleeve 12 is a nylon material ring, which is installed between the clamping
所述角度指针14为一L形角铁。其一侧成三角状,通过三角形顶角与基座15左侧面的不同角度刻度线相重合来保证转轴基座9旋转确定的角度;另一侧设有两螺纹孔,用于将角度指针安装于转轴基座9。The
所述基座15左侧面设有一沉头螺栓孔用于安装夹紧轴13,固定转轴基座9的位置;左侧面上还设有角度刻度,用于与角度指针14三角顶尖相重合确定转轴基座9所旋转的角度;右侧面设有一楔形槽,后侧面设有一销柱孔,用于安装一销柱将普通磨床刀架卡入楔形槽中,固定基座15于普通磨床刀架上。The left side of the
所述位置调节机构需在加工一批同规格刀具前借助体视显微镜进行调节,保证刀具的刀尖圆弧与转轴5的轴心重合。The position adjustment mechanism needs to be adjusted by means of a stereo microscope before processing a batch of tools of the same specification to ensure that the arc of the tool tip coincides with the axis of the
一种刀具负倒棱加工夹具的使用方法,步骤如下:A method of using a tool negative chamfering fixture, the steps are as follows:
第一步,首先,刀具负倒棱加工夹具组装完成后,将基座15固定于体视显微镜工作台上后,手握夹紧销11旋转夹紧轴13,使其转轴基座9能够绕夹紧轴13转动。其次,转动转轴基座9使转轴5竖直,然后再次手握夹紧销11旋转夹紧轴13,固定转轴基座9的位置。最后,松开刀具夹块6后的夹紧螺栓,将刀具7放置在刀架1的八字形定位挡板上,然后旋转刀具夹紧螺栓带动刀具夹块6夹紧刀具。The first step, first, after the tool negative chamfering processing fixture is assembled, after fixing the base 15 on the stereo microscope worktable, hold the
第二步,松开中间滑块4侧面的滑块夹紧螺栓,通过调节第一丝杠螺栓3对刀具7X方向相对于转轴的位置进行调节;松开上滑块2侧面的滑块夹紧螺栓,通过调节第二丝杠螺栓8对刀具7Y方向相对于转轴的位置进行调节。通过对刀具7X、Y方向位移量的调节来保证刀具7刀尖圆弧的圆心与转轴5轴心重合。The second step is to loosen the slider clamping bolt on the side of the
第三步,刀具7刀尖圆弧的圆心与转轴5轴心调节重合后,旋转中间滑块4侧面的滑块夹紧螺栓,固定刀具7相对于转轴在X方向的位置;旋转上滑块2侧面的滑块夹紧螺栓,固定刀具7相对于转轴在Y方向的位置;松开基座15在体视显微镜工作台上的固定,将刀具负倒棱加工夹具移至普通磨床工作台,固定基座15于普通磨床刀架上。In the third step, after the center of the tool nose arc of
第四步,手握夹紧销11旋转夹紧轴13,松开转轴基座9的固定,手动旋转转轴基座9,使其带动的转轴5与竖直面呈一定角度,角度的大小为所需磨削负倒棱的角度,通过保证角度指针14三角顶尖与基座15上的角度刻度重合来保证角度准确性。所磨削的负倒棱宽度通过普通磨床的微进给机构进行调节。The fourth step is to hold the
第五步,进行磨削,磨削时旋转摇把10保证刀具主副切削刃与刀尖圆弧处的负倒棱磨削,在磨削完一把刀具后松开刀具夹块6后的夹紧螺栓卸下刀具后进行下一把刀具的负倒棱磨削。因为同一批次刀具规格相同所以不需要再进行重新对刀,只需要安装新的刀具后重复磨削即可。The fifth step is to carry out grinding. When grinding, rotate the crank handle 10 to ensure that the main and auxiliary cutting edges of the tool and the negative chamfering of the tool tip arc are ground. After grinding a tool, release the
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.
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