Tool Calculation - Drawings

Contents

Contents

p

Introduction

I. Design of a shaped cutter for processing of a screw chip groove of a thrower with a diameter of 12mm

II. Design of a shlitsevy evolvent broach for processing of an opening 45khn7kh2,

III. Design of finishing worm tooth cutter m =

Conclusion

List of literature

Summary

In this course project, shaped milling tools for processing the screw chip groove of the thrower, splined involute pulling and worm finish milling for processing gear wheels were developed and designed.

When designing a shaped milling cutter for processing the screw chip groove of the thrower, an end section of the thrower groove was built, the position of the tool axis relative to the axis of the machined thrower was determined, the coordinates of the axial section of the IP were located, the IP profile was built, and the design and overall dimensions of the milling cutter were determined.

When designing splined involute pulling, the parameters of the tool surface were determined, the pulling design was developed, splined teeth were profiled, profile errors were determined when replacing the involute with an arc circle.

When designing the worm cutter, the main design dimensions of the cutter were calculated, profiling was carried out and technical requirements were assigned.

Introduction

Tool - The machine accessory required to form the desired part shape and dimensions.

There are three main directions in machining: cutting, plastic deformation, combined machining. According to these directions, all tools can be divided into three classes: cutting, deforming and combined. Cutting tools were most widely used. Due to this diversity, the established theory of tool design includes a large number of private, unrelated methods. Despite this, there is much in common in basic design solutions and design methods.

In general, tool design can be divided into the following steps:

1. The choice of a fundamentally constructive solution;

2. Defines tool parameters.

According to the content of the project task, the tool can be divided into three groups:

1. Tools with a simple design and working in the process of cutting the allowance and forming

2. Tools that work in simple shaping schemes and implement complex cut-off schemes

3. Shaped tools that work in both simple and complex shaping schemes.

The most difficult to design are the tools of the third group, for which, in addition to solving the problem of optimizing the operation of cutting edges, the difficult problem of grading this tool is solved.