Cutting Tool Design Course Project (Drill, Pulling, Shingle)

Contents

INTRODUCTION

1. CALCULATION OF COMBINED HAULAGE

1.1 Initial data

1.2 Selection of dimensions and profile of chip grooves

1.3 Tooth Lift Definition

1.4 Selection of machine

1.4.1The calculation of cutting forces during pulling

1.4.2 Selection of machine model

1.4.3 Determination of cutting speed

1.4.4 Strength check of pulling

1.5 Calculation of the chamfer part of the drawing

1.5.1 Determination of allowance for chamfer teeth

1.5.2 Calculation of number of teeth

1.5.3 Determination of bleed parameters

1.5.4 Calculation of the length of the chamfer part of the drawing

1.6 Calculation of splined part of pulling

1.6.1 Allowance for splined teeth

1.6.2 Calculation of number of teeth

1.6.3 Calculation of the width tolerance of the pulling splines

1.6.4 Parameters of offsets

1.6.5 Calculation of spline section length

1.7 Determination of structural dimensions of the pulling

1.7.1 Determination of tooth diameters

1.7.2 Neck and adapter cone

1.7.3 Front and rear guide

1.7.4 Total length of hauling

2 CALCULATION OF COMBINED DRILL

2.1 Initial data:

2.2 Determination of geometrical parameters of cutting part

2.3 Sizing the Drill Cross Section

2.4 Calculation of drill length

2.5 Check of drill bit for stability

3 DESIGN OF DOLBYAK FOR GEARWHEEL TREATMENT

3.1 Initial Data for Dolb Design

3.2 Analysis and technical justification of the adopted shingle design

3.3 Determination of additional process data required for the calculation of the shoulder

3.4 Determination of geometric parameters of the shoulder

3.5 Determining the dimensions of the shoulder in the initial section

3.6 Determination of initial distances of the shoulder

3.7 Determination of shoulder height

3.8 Determining the dimensions of the shoulder on the front surface

CONCLUSION

LIST OF REFERENCES

Task

Variant No. 95

For treated material - 40XN steel, calculate and design the following cutting tools:

1) .Combined pulling for splined bushing treatment

b10x112x120H11x18D9. Length of treated bushing l = 110 mm, roughness Ra = 2.5 mm;

2). Combined drill for treatment of hole d1 = 18mm; d2=26mm;

l1=50mm; l2=55mm;

3). Length for processing of gears m = 3mm, z1 = 28, z2 = 40 St. 7-D.

Project Description

The course project contains: 32 p., 12 Fig., 6 sources, 3 annexes.

Design object - combined pulling of group cutting for splined bushing treatment; a combined drill for processing holes; shoulder for processing gears.

The purpose of the project is to design a combined group cutting drawing for bushing treatment; Design a combined drill to handle holes design a pinion for machining gears.

In the design, the combined pulling for spline hole treatment was calculated. The drawing material is selected from the processing conditions, the number of processing teeth and overall dimensions are calculated.

Calculation of combined drill for processing of stepped hole was carried out, material was selected, basic geometric parameters of cutting parts and overall dimensions were calculated.

Chisel is made for processing gears. Geometric parameters of cutting parts of chisel and its overall dimensions are calculated.

Drawings of all cutting tools presented above have been developed.

DOLBYAK, DRILL, PULLING, BUSHING, HOLE, LENGTH, MODULE, PITCH, TOLERANCE, QUICK-CUTTING STEEL.

Introduction

Currently, the creation of modern machines at a high technical level is based on the principles of standardization, unification and aggregation. This method significantly reduces the costs of designing, manufacturing and implementing high technology in the industry. To solve these problems, units and parts of the same type in purpose and functional characteristics are widely used, therefore, the efficiency of the machine as a whole depends to a large extent on the correct adoption of technical decisions on such elements.

The technological level of development of all branches of the national economy is largely determined by the level of development of mechanical engineering. Comprehensive automation and mechanization of industrial techniques is possible only with a high level of development of the engineering industry. This is especially relevant for Ukraine's industrial production during the period of its structural changes.

The design of the processing tool has a serious task, since the quality of the manufactured parts and the price depend on accuracy and durability, which plays an important role in the period of market relations between the manufacturer and the consumer.

Calculation of combined drill

2.1 Initial data:

diameters of stages of the treated hole: d1 = 18mm and d2 = 26mm;

lengths of stages of the treated hole l1 = 50mm and l2 = 55mm;

the processed material Steel 40XH.

Conclusion

The course design presents the design calculation of various cutting tools. In particular, combined pulling, combined drill and gearwheel treatment. The basic geometric parameters of tools are calculated, tool materials are selected, depending on the working conditions and processed materials. The overall dimensions of the tools were calculated, according to which the drawings are drawn accordingly.

долбяк Лазарев.cdw

протяжка Лазарев.cdw

сверлоЛазарев.cdw