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Who has the graduation thesis of transforming CA6 140 ordinary lathe into economical NC lathe?
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With the increasing demand for precision of industrial equipment, the machining accuracy of mechanical processing equipment is also increasing. In China, ordinary lathes occupy a large proportion in lathes of mechanical processing equipment. This has increasingly restricted the development of today's industry. CNC machine tools are expensive and need high-tech processing workers. Therefore, it is necessary to automate the transformation of machine tools. Based on the common horizontal lathe CA6 140, this paper carries out the electromechanical integration transformation.

On the basis of searching and consulting a large number of relevant materials, the author deeply studies and analyzes the automation transformation technology of machine tools, and describes the design of machine tool control system. In the whole transformation process, the longitudinal and transverse feed systems of the lathe are mainly transformed. The ball screw with small friction loss, high efficiency, high precision and long service life is selected as the screw, and the stepping motor is selected as the motor. The motor and the ball screw are decelerated through gears. The tool rest is transformed into a rotary tool rest with automatic tool change, and the required threads are processed by a pulse generator; The whole control system takes JKW- 15T single chip microcomputer as the core, and controls the driving equipment of the machine tool by programming to achieve the required machining degree.

Keywords: machine tool transformation;

Automated machine tools;

control system

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record

chapter one

line

discuss

1

Electromechanical integration development 1. 1

1

1. 1. 1 mechatronics technology

1

1. 1.2 Overview of mechatronics development

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1.2 the necessity of electromechanical integration transformation

three

1.2. 1 the significance of machine tool transformation

three

1.2.2 machine tool transformation market

four

1.3 electromechanical transformation contents

six

1.4 topic selection and main research contents of this paper

eight

1.4. 1 topic of this article

eight

1.4.2 main research contents

eight

1.5 overall transformation scheme of lathe

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The basic design idea of 1.5. 1

nine

1.5.2 design requirements

10

Chapter II Mechanical Part Design of Lathe Transformation

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2. 1 Design of mechanical structure transformation of feed system

13

2.2 Calculation and selection of mechanical parts of feed servo system

15

2.2. 1 Determine the pulse equivalent of the system.

15

Calculation of cutting force

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2.3 Design, Calculation and Selection of Ball Screw

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2.3. 1 ball screw

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2.3.2 Design and calculation of longitudinal ball screw

18

2.3.3 Design and calculation of transverse ball screw

26

2.3.4 Installation and use of ball screw

33

2.4 Design and inspection of reduction gear for connection between motor and ball screw.

36

2.4. 1 gear drive

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2.4.2 Design and inspection of longitudinal deceleration device

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2.4.3 Design and inspection of lateral deceleration device

4 1

2.5 Calculation and Selection of Stepping Motor of Feed System

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2.5. 1 stepper motor

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2.5.2 Calculation and Selection of Longitudinal Motor

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2.5.3 Calculation and selection of transverse motor

5 1

2.6 Selection and introduction of electric tool rest

55

chapter three

Introduction and selection of spindle pulse generator

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3. 1 photoelectric encoder principle

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3.2 Installation of Spindle Pulse Generator

60

3.3 Selection of Spindle Pulse Generator

60

chapter four

Selection of control device

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4. 1

Introduction of JWK- 15T

63

4.2

function assignment

65

4.3 programming

67

chapter five

conclusion

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refer to

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Original English version

8 1

Chinese translation

90

dispatch

thank

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