Summary of Surveying and Mapping Practice of Mechanical Drawing Chapter 1 Drawing is a very important part of learning mechanical drawing course. This week, we passed the first-class straight.
The mapping of gear cylindrical gear reducer allows us to master the basic theory, basic knowledge and basic skills required by the course, further improve the ability of mapping and drawing, and lay a deeper foundation for future study.
1. By mapping the first-stage spur gear reducer, the following purposes can be achieved:
1, so that we can master the methods and steps of parts mapping;
2. Understand the meaning of hand-drawn sketches;
3. Master the usage of commonly used measuring tools, and be able to determine the specifications of standard parts and gear parameters according to measured data, relevant standards and manuals and calculation formulas;
4. Correct selection and marking of fit, surface roughness and form and position tolerance;
8. Have original opinions on the expression method of parts, correct view selection and reasonable layout;
9, understand the working principle of mapping assembly, understand the role of each component and the assembly connection relationship between each component.
Second, the internship requirements
1. Before surveying and mapping, read the surveying and mapping instruction carefully, and make clear the purpose, requirements, contents, methods and steps of surveying and mapping.
2. Before surveying and mapping, conduct a comprehensive analysis of components. By observing, studying and analyzing the structure and working conditions of the parts, read the instructions carefully to understand the purpose, performance, working principle, structural characteristics and assembly relationship of the parts.
3, in strict accordance with the provisions of the "mechanical drawing" national standard, drawing parts drawings and equipment drawings, independently complete the drawing task on time.
Third, the internship content:
The internship process showed unity and spirit, especially in detail investigation. A drawing, two calculations, a record, a reading, two rulers, a conductor, everyone does his job and no one is idle. At first, we didn't draw fast. With the familiarity with the process, our cooperation is getting better and better. Soon, the basic graphics are presented. At the end of the day, everyone feels very tired, but full!
Although the internship has passed, it has left me a lot. The first is to further master the operation of the instrument and the steps and processes of measurement. Secondly, he made me feel the importance of unity, and the spirit of unity in measurement made me feel how important unity is in future social work! Once again, I was moved by everyone's efforts. In the past, everyone loved to take a nap, but during the internship, in order to catch up with the progress, everyone went out for the exam without rest after dinner. This is my summary of this internship.
Fourth, the internship summary:
(1) What used to be empty in books is much clearer now. I really feel the connotation of the sentence "Practice makes true knowledge". What I have personally practiced is something I will never forget, which is also the fundamental reason why human beings can live better;
(2) From a small point of view, I deeply realized the importance of doing my job well. Before doing anything, we should fully consider all aspects of our work, especially those of us who study science and engineering, and we should have logical thinking and meticulous attitude towards things.
(3) I deeply realized the importance of learning professional knowledge, because what we learn is the maintenance and management of mechanical and electrical equipment, which is closely related to many things in life. If you are not careful, small aspects will endanger your life, and big aspects will cause great losses to the country;
(4) I deeply understand the strong cohesion of the collective, and unity is an indispensable spiritual pillar for us to learn machinery.
Summary of Mechanical Drawing Surveying and Mapping Practice Part II Practice Time: August 29th, _ _ year to September 4th, \u year.
Practice place
Internship: Mechanical Control College 10 Group
Exercise content: mapping the first-class bevel gear reducer.
1. internship purpose:
Mechanical drawing is a basic knowledge of practical technology that mechanical designers must master. The mastery of drawing methods, the application of drawing standards, the improvement of drawing skills, the cultivation of drawing and reading skills and the enhancement of spatial imagination are all realized through drawing exercises and homework requirements. Doing more exercises is the key to learning mechanical drawing well, so we should do more exercises actively and independently. By surveying and mapping the assembly of the first-stage bevel gear reducer, we can comprehensively and systematically review the basic theory, basic knowledge and basic skills required by the mechanical drawing course, further improve the quality and speed of drawing and reading drawings, and lay the foundation for subsequent courses.
In actual production, when designing new products, introducing advanced technology, and carrying out technical transformation and maintenance on the original equipment, it is necessary to map the existing machines and parts, and draw their assembly drawings and parts drawings. Therefore, mastering surveying and mapping technology is of great significance to engineers and technicians. In the practice of mechanical drawing and mapping, the following objectives are achieved by mapping the first-stage bevel gear reducer:
1, so that we can master the methods and steps of parts mapping;
2. Understand the meaning of hand-drawn sketches;
3. Master the usage of commonly used measuring tools, and be able to determine the specifications of standard parts and gear parameters according to measured data, relevant standards and manuals and calculation formulas;
4. Correct selection and marking of fit, surface roughness and form and position tolerance;
5. Further consolidate the drawing skills mastered in mechanical drawing, and make the drawing reading ability reach a new level;
6. Cultivate our patient and meticulous work style, scientific and rigorous work attitude and team spirit.
7, in surveying and mapping, pay attention to cultivate a serious and responsible, down-to-earth and meticulous work style and the habit of ensuring quality and completing tasks on time. In the process of surveying and mapping, we should review the teaching materials, look for information and apply what we have learned;
8. Have original opinions on the expression method of parts, correct view selection and reasonable layout;
9, understand the working principle of mapping assembly, understand the role of each component and the assembly connection relationship between each component.
10, the pattern should conform to the standards of mechanical drawing, and the standard parts should be drawn according to the standard drawing, simplified drawing or proportional drawing, and should be standardized, with correct and complete dimensions and technical requirements;
1 1, master measuring tools, and accurately measure external circle, internal hole, center distance, height, depth, length, hole distance, tooth top circle, thread and other related dimensions.
12, learn to draw skillfully with CAD.
Second, the internship requirements
1. Before surveying and mapping, read the surveying and mapping instruction carefully, and make clear the purpose, requirements, contents, methods and steps of surveying and mapping.
2. Before surveying and mapping, conduct a comprehensive analysis of components. By observing, studying and analyzing the structure and working conditions of the parts, read the instructions carefully to understand the purpose, performance, working principle, structural characteristics and assembly relationship of the parts.
3. First map out the data of all aspects of the machine, draw a sketch, and finish the CAD drawing independently on time.
Third, the internship content:
The spirit of teamwork is reflected everywhere in the training, which makes me feel the strength of the team in my study, and at the same time, I have learned that I must have a rigorous and careful attitude and some patience in my work. The 7-day surveying and mapping training is over. During this period, I have paid a lot and gained a lot. Sometimes the task is not completed during the day, and CAD is drawn from the bathroom at night. After a few days, I felt very tired, but when the molded drawings were presented to me, I was more happy and willing than tired and irritable. In short, you will get what you pay.
Practice summary of mechanical drawing surveying and mapping. Purpose of practice:
In order to deepen students' professional knowledge of surveying, this centralized teaching practice is arranged in combination with the actual situation of our school. Drawing is a very important practical link in the course of mechanical drawing. Through surveying and mapping the assembly of single-stage cylindrical gear reducer, let us comprehensively and systematically review the basic theory, basic knowledge and basic skills needed for mechanical drawing course, further improve the degree of drawing and reading drawings, and lay the foundation for subsequent courses.
In actual production, when designing new products, introducing advanced technology, and carrying out technical transformation and maintenance on the original equipment, it is necessary to map the existing machines and parts, and draw their assembly drawings and parts drawings. Therefore, mastering surveying and mapping technology is of great significance to engineers and technicians. In the practice of drawing and mapping, through the mapping of single-stage cylindrical gear reducer, the following objectives have been achieved:
1, so that we can master the methods and steps of parts mapping;
2. Understand the meaning of hand-drawn sketches;
3. Master the usage of commonly used measuring tools, and be able to determine the specifications of standard parts and gear parameters according to measured data, relevant standards and manuals and calculation formulas;
4. Correct selection and marking of fit, surface roughness and form and position tolerance;
5. Further consolidate the drawing skills mastered in mechanical drawing, and make the drawing reading ability reach a new level;
6. Cultivate our patient and meticulous work style, scientific and rigorous work attitude and team spirit.
7, in surveying and mapping, pay attention to cultivate a serious and responsible, down-to-earth and meticulous work style and the habit of ensuring quality and completing tasks on time. In the process of surveying and mapping, we should review the teaching materials, look for information and apply what we have learned;
8. Have original opinions on the expression method of parts, correct view selection and reasonable layout.
9, understand the working principle of mapping assembly, understand the role of each component and the assembly connection relationship between each component.
10, the pattern should conform to the standards of mechanical drawing, and the standard parts should be drawn according to the standard drawing, simplified drawing or proportional drawing, and should be standardized, with correct and complete dimensions and technical requirements;
1 1, master measuring tools, and accurately measure external circle, internal hole, center distance, height, depth, length, hole distance, tooth top circle, thread and other related dimensions.
Second, the internship requirements
1. Before surveying and mapping, read the surveying and mapping instruction carefully, and make clear the purpose, requirements, contents, methods and steps of surveying and mapping.
2. Before surveying and mapping, conduct a comprehensive analysis of components. By observing, studying and analyzing the structure and working conditions of the parts, read the instructions carefully to understand the purpose, performance, working principle, structural characteristics and assembly relationship of the parts.
3, in strict accordance with the provisions of the "mechanical drawing" national standard, drawing parts drawings and equipment drawings, independently complete the drawing task on time.
Third, the internship content:
A week's hard practice of mechanical drawing and surveying and mapping is finally over. These days are really a test for us, during which there are hardships and tiredness, and there are difficulties and joys!
The most difficult thing is the drawing process. Although we have learned and have a lot of experience in painting, those superficial and half-baked things are just like giving them back to our teachers. For example, when drawing equipment drawings, I didn't know where to start at first, and I thought for a long time before I figured it out. When marking tolerances, we don't know what to mark. There is nothing in the book. Finally, we asked the teacher for help before we finished. This internship let me know that I still have many shortcomings and many places to learn. This time it taught us a lesson. If you don't understand anything in the future, you must find a teacher to solve it. Don't be a hero. During my internship, I also showed unity and spirit, especially when I was investigating in detail. A drawing, two calculations, a record, a reading, two rulers, a conductor, everyone does his job and no one is idle. At first, we didn't draw fast. With the familiarity with the process, our cooperation is getting better and better. Soon, the basic graphics are presented. At the end of the day, everyone feels very tired, but full!
Although the internship has passed, it has left me a lot. The first is to further master the operation of the instrument and the steps and processes of measurement. Secondly, he made me feel the importance of unity, and the spirit of unity in measurement made me feel how important unity is in future social work! This is my summary of this internship. Let me know how to do it, mainly as follows:
1. Disassemble and assemble the assembly correctly and draw a schematic diagram (mark standard parts and materials);
2. Draw sketches of all non-standard parts;
3. Draw the assembly sketch of key parts;
4. Draw the assembly drawing according to the assembly schematic diagram and part sketch;
5. According to the assembly drawing and parts sketch, draw the working drawing of main parts;
6, comprehensive inspection and binding;
7. Reinstall the surveying and mapping components.
Fourth, the internship summary:
Experience and lessons: exhibition point is very important, and the quality of exhibition point determines the speed of surveying and mapping;
(1) What used to be empty in books is much clearer now. I really feel the meaning of the sentence "Practice makes true knowledge". What I have personally practiced is something I will never forget, which is also the fundamental reason why human beings can live better;
(2) From a small point of view, I deeply realized the importance of doing my job well. Before doing anything, we should fully consider all aspects of our work, especially those of us who study science and engineering, and we should have logical thinking and meticulous attitude towards things.
(3) I deeply realized the importance of learning professional knowledge, because what we learn is the maintenance and management of mechanical and electrical equipment, which is closely related to many things in life. If you are not careful, small aspects will endanger your life, and big aspects will cause great losses to the country;
(4) I realize that unity and mutual assistance are crucial, and unity can win.
After this mechanical drawing training, the biggest gain is that the ability to draw and look at pictures has improved a lot, and I know that many things can be successful as long as I work hard.
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