In order to improve labor productiv

In order to improve labor productivity, ensure processing quality and reduce labor intensity, special clamps need to be designed. After consultation with the instructor, it was decided to design the drilling machine fixture for the third process - drilling, expanding and roughly reaming Φ 20 holes. The fixture will be used for z525 vertical drilling machine, with the cutter of Φ 18 drill bit, Φ 19.8 reamer and Φ 20 reamer.（1） Questions raisedThis fixture is mainly used to drill Φ 4mm holes and expand Φ 6mm holes. The shape and position tolerance and surface requirements of this hole are high. Therefore, when processing this hole, the Φ mm outer cylindrical surface and its end face should be machined out, which can be used as the positioning surface of this process. Therefore, in this process, the simple special fixture can be designed and selected while ensuring the improvement of labor productivity and the reduction of labor intensity.（2） Fixture design1. Selection of positioning datumIt can be seen from the part drawing that the axis of Φ 20 hole and Φ 45 axis have coaxiality requirements, and the perpendicularity requirements for the end surface of Φ 45. The design basis is the center line of Φ 45 cylindrical surface and the end surface of Φ 45. In order to make the positioning error 0, only Φ 45 cylindrical surface is selected as the main positioning base, and Φ 45 end face is selected as the auxiliary positioning base. In order to reduce the cost of production, this design adopts the clamping method of screw tightening mechanism.2. Calculation of cutting force and clamping forceCutter: high speed steel drill d = Φ 18mm

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目标语言: -

结果 (简体中文) 1: [复制]

复制成功！

为了提高劳动生产率，确保加工质量并降低劳动强度，需要设计特殊的夹具。在与讲师协商后，决定为第三步设计钻床夹具-钻，扩孔和粗扩Φ20孔。该夹具将用于z525立式钻床，带有Φ18钻头，Φ19.8铰刀和Φ20铰刀的刀具。 （1）提出的问题 该夹具主要用于钻Φ4mm的孔并扩大Φ6mm的孔。该孔的形状和位置公差以及表面要求很高。因此，在加工此孔时，应加工出Φmm的外圆柱表面及其端面，可以将其用作此过程的定位表面。因此，在此过程中，可以在确保提高劳动生产率和减轻劳动强度的同时设计和选择简单的专用夹具。 （2）夹具设计 1.定位基准的选择 从零件图中可以看出，Φ20孔的轴线和Φ45的轴线具有同轴度要求，而Φ45的端面具有垂直度要求。设计依据是Φ45圆柱面的中心线和端面为了使定位误差为0，仅选择Φ45圆柱面作为主定位基础，选择Φ45端面作为辅助定位基础。为了降低生产成本，本设计采用螺丝拧紧机构的夹紧方法。 2.切削力和夹紧力的计算 刀具：高速钢钻d =Φ18mm

正在翻译中..

结果 (简体中文) 2:[复制]

复制成功！

In order to improve labor productivity, ensure processing quality and reduce labor intensity, special clamps need to be designed. After consultation with the instructor, it was decided to design the drilling machine fixture for the third process - drilling, expanding and roughly reaming Φ 20 holes. The fixture will be used for z525 vertical drilling machine, with the cutter of Φ 18 drill bit, Φ 19.8 reamer and Φ 20 reamer. （1） Questions raised This fixture is mainly used to drill Φ 4mm holes and expand Φ 6mm holes. The shape and position tolerance and surface requirements of this hole are high. Therefore, when processing this hole, the Φ mm outer cylindrical surface and its end face should be machined out, which can be used as the positioning surface of this process. Therefore, in this process, the simple special fixture can be designed and selected while ensuring the improvement of labor productivity and the reduction of labor intensity. （2） Fixture design 1. Selection of positioning datum It can be seen from the part drawing that the axis of Φ 20 hole and Φ 45 axis have coaxiality requirements, and the perpendicularity requirements for the end surface of Φ 45. The design basis is the center line of Φ 45 cylindrical surface and the end surface of Φ 45. In order to make the positioning error 0, only Φ 45 cylindrical surface is selected as the main positioning base, and Φ 45 end face is selected as the auxiliary positioning base. In order to reduce the cost of production, this design adopts the clamping method of screw tightening mechanism. 2. Calculation of cutting force and clamping force Cutter: high speed steel drill d = Φ 18mm

正在翻译中..

结果 (简体中文) 3:[复制]

复制成功！

为了提高劳动生产率，保证加工质量，降低劳动强度，需要设计专用夹具。经与指导员协商，决定设计第三道工序钻扩粗铰Φ20孔的钻床夹具。该夹具用于z525立式钻床，刀具为Φ18钻头、Φ19.8铰刀和Φ20铰刀。 （1）提出的问题 该夹具主要用于钻Φ4mm孔和扩Φ6mm孔。该孔形位公差及表面要求高。因此，在加工该孔时，应加工出Φmm外圆柱面及其端面，作为该加工的定位面。因此，在这一过程中，可以在保证劳动生产率提高和劳动强度降低的前提下，设计和选择简单的专用夹具。 （2）夹具设计 一。定位基准的选择 从零件图可以看出，Φ20孔轴和Φ45轴有同轴度要求，Φ45端面有垂直度要求。设计依据为Φ45柱面中心线和Φ45端面。为使定位误差为0，仅选用Φ45柱面作为主定位座，选用Φ45端面作为辅助定位座。为了降低生产成本，本设计采用了螺钉拧紧机构的夹紧方式。 2。切削力和夹紧力的计算 刀具：高速钢钻d=Φ18mm

正在翻译中..

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