The utility model relates to the technical field of cutting tools, in particular to a heat shrinkable combined tool capable of rapidly changing the cutter head. The cutter head and the heat shrinkable handle are provided with an inserting part for connecting with the heat shrinkable handle. The end middle of the heat shrinkable knife handle is provided with a chimerism cavity which is slightly smaller than the socket part. When the heat shrinkable handle is heated and expanded, the inserting part is inserted into the chimerism chamber, and the knife head is clamped and fixed to heat shrinkable after the heat shrinkable handle is cooled. The handle of the knife. The utility model uses the principle of heat expansion and contraction, and the cutter head formed by the pressing and sintering of the mold is placed in the heated chimerism chamber, and the radial force produced by the heat shrinkable knife handle is clamped by the radial force produced after the cooling and shrinkage of the knife. When the tool head is worn, the heat shrinkable knife handle is placed into the heat shrinkable device and then the knife head is pulled out. Next, a new cutter head is replaced, and the long-term use of the tool head and the heat shrinkable handle is realized quickly, and the use time of the heat shrinkable handle is improved and the production cost is saved.
【技术实现步骤摘要】
一种可快速更换刀头的热缩式组合刀具
本技术涉及切削刀具
,尤其是指一种可快速更换刀头的热缩式组合刀具。
技术介绍
现有切削刀具的刀柄和刀头为一整体,在长期使用后会刀头受到损坏导致切削刀头无法使用,但切屑刀柄部分往往完好无损,若整体更换切削刀具,则会造成较大的浪费;刀头与刀柄一体成型的,一旦刀头损坏了,一把刀具即报废,导致生产成本较高。
技术实现思路
本技术针对现有技术的问题提供一种可快速更换刀头的热缩式组合刀具。为了解决上述技术问题,本技术采用如下技术方案:一种可快速更换刀头的热缩式组合刀具,包括刀头和热缩刀柄,所述刀头上设有用于与热缩刀柄连接的插接部,所述热缩刀柄的末端中间开设有比插接部尺寸略小的嵌合卡紧腔,当热缩刀柄被加热膨胀后,所述插接部插入嵌合卡紧腔中,待热缩刀柄冷却后,刀头被夹紧固定于热缩刀柄上。其中,所述刀头由模具压制烧结而成,且插接部与刀头一体成型。进一步的,所述插接部的四周环形设置有四个嵌合插槽,所述嵌合卡紧腔的内壁凸起设有与嵌合插槽形状适配的卡紧凸筋。优选的,所述嵌合插槽设为直型槽或斜型槽。再进一步的,所述卡紧凸筋在靠近嵌合卡紧腔入口的端部设置有引导斜面。其中,所述刀头的切削刃数设为单刃、双刃或多刃。其中,所述刀头的刃径D≥1mm。本技术的有益效果:本技术提供的一种可快速更换刀头的热缩式组合刀具,包括刀头和热缩刀柄,所述刀头上设有用于与热缩刀柄连接的插接部,所述热缩刀柄的末端中间开设有比插接部尺寸略小的嵌合卡紧腔,当热缩刀柄被加热膨胀后,所述插接部插入嵌合卡紧腔中,待热缩刀柄冷却后,刀头被夹紧固定于热缩刀柄上。本技术利用热胀冷缩的原理,将模 ...
【技术保护点】
1.一种可快速更换刀头的热缩式组合刀具,包括刀头和热缩刀柄,其特征在于:所述刀头上设有用于与热缩刀柄连接的插接部,所述热缩刀柄的末端中间开设有比插接部尺寸略小的嵌合卡紧腔,当热缩刀柄被加热膨胀后,所述插接部插入嵌合卡紧腔中,待热缩刀柄冷却后,刀头被夹紧固定于热缩刀柄上。
【技术特征摘要】
1.一种可快速更换刀头的热缩式组合刀具,包括刀头和热缩刀柄,其特征在于:所述刀头上设有用于与热缩刀柄连接的插接部,所述热缩刀柄的末端中间开设有比插接部尺寸略小的嵌合卡紧腔,当热缩刀柄被加热膨胀后,所述插接部插入嵌合卡紧腔中,待热缩刀柄冷却后,刀头被夹紧固定于热缩刀柄上。2.根据权利要求1所述的一种可快速更换刀头的热缩式组合刀具,其特征在于:所述刀头由模具压制烧结而成,且插接部与刀头一体成型。3.根据权利要求2所述的一种可快速更换刀头的热缩式组合刀具,其特征在于:所述插接部的四周环形设置有四个嵌合插...
【专利技术属性】
技术研发人员:曹阳,曾法军,
申请(专利权)人:东莞市耐久精密五金有限公司,
类型:新型
国别省市:广东,44
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