0三维图(1)
Contents
Abstract 5
Chapter 1 Preface 5
Chapter 2 Process analysis of workpiece 6
2.1 Function of workpiece 6
2.2 Process analysis of parts 7
2.3 Processing requirements 8
Chapter 3 Blank part determination 9
3.1 Blank design 9
3.2 Determination of blank allowance 10
Chapter 4 Manufacturing process planning 10
4.1 Process planning 10
4.2 Selection of processing equipment and process equipment 12
Chapter 5 Cutting parameters and labor-hour 13
5.1 Determination cutting parameters 13
5.2 Time quota calculation 14
Chapter 6 Fixture design and usage of equipment 15
6.1 Jig/Fixture design 15
6.1.1 locating and clamping of the workpiece 15
6.1.2 Analysis of location errors and clamping error 16
6.1.3 Analysis and calculation of cutting force and clamping force 17
6.3 Summary 19
Chapter 7 Conclusion 20
References 21
Thanks 22
Abstract
The design course is a teaching link on the basis of finishing the course Technology of Mechanical Manufacture(including machine tool fixture design)and most of the specialized courses. It is a design of special fixture mainly for the processing technic of parts and some procedure processing of parts. From the process of the parts,it mainly analyses what problems should pay attention in the processing,and what methods and process should be adopted to ensure the accuracy and raise labour productivity. As far as special clamp is concerned, good fixture design can improve product productivity, accuracy, reduce costs and so on, and can also expand the scope of use of machine tools, so that improve the production efficiency and reduce the costs under the premise of ensuring accuracy.This design enables us to apply the basic theory of manufacturing technology, combining with practical knowledge gained from production practice,and analyze and solve process problems independently.Besides,it enables us to master the ability to design a process specification for a moderately complex part (shell) and the knowledge of the basic principles and methods of fixture design.This design is also a practice shot of drawing up jig design plan, completing jig structure design ability,being familiar with and using relevant manuals, charts and other technical data and writing technical documents and other basic skills,which lays a good foundation for future graduate design and future work.
Due to limited capacity, lack of experience, there are many inadequacies in the design, I hope the teacher will be more advice.
Key words: process planning, design, special fixture
Chapter 1 Preface
The bearing seat, as the name implies, ACTS as a support bearing, which holds the bearing's outer ring in place.Only the inner ring is allowed to rotate, but the outer ring does not rotate. It always rotates in the direction of the drive (for example, the motor is in a positive rotation, the inner ring is in a positive rotation, and vice versa), actually is a kind of bearing parts, is composed of bearing and housing, convenient for application in the field of various industries, advantage lies in between the parts and have to cooperate with more harmonious, easy to use, direct help manufacturer to cost control. In terms of shape, it has many kinds of diversity, often just a box body, the bearing can be installed in.As China's mechanical technology becomes more and more developed, it becomes even more important in production and develops well, especially in the fields related to automobile and electronics and electrical appliances, which have witnessed rapid development.
This subject is the mechanical processing technology and fixture design of bearing seat, which is an important task after learning automobile manufacturing technology.
Under the guidance of the teacher, this design will require the students' union to make a comprehensive application of all the lessons learned before, and complete a basic engineering training independently.
Chapter 2 Process analysis of workpiece
2.1 Function of workpiece
The parts for bearing seat, according to the shape of the parts to see the big hole and the corresponding shaft connection between, among the big hole and shaft connection need to guarantee a certain tolerance matching, to ensure the bearing on the shaft bearing can make can make smooth shaft rotation, and the bearing seat need to connect with the corresponding shaft and bearing, so to play a role in connecting the center hole and connecting face right certain accuracy and the behavior of tolerance size requirements.
0三维图(2)
三维文件图
轴承座铣面夹具体
轴承座铣面夹具装配图
M20螺柱
环形支承板
调节支承板
压板
压紧螺钉
支承板
轴承座零件图
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