Part Design Enclosure

Contents

Contents

Introduction

1 Design and technological analysis of production facility

1.1 Part Assignment

1.2 Analysis of machined surfaces of the part

1.3 Analysis of technical requirements for the part

1.4 Part Analysis for Processability

1.5 Selecting Part Design Bases

1.6 Definition of production type and its characteristics

2 Design and technological development of the production facility

2.1 Selection of manufacturing method and design of workpiece

2.2 Development of part processing process

2.3 Determination of machining allowances

2.4 Design of Machine Tools

2.5 Programming of machine-tool operations

2.6 Technical rationing of machine operations

3 Design and organizational development

3.1 Calculation of required quantity of process equipment and employees of section of mechanical part processing shop

3.1.1 Calculation of equipment operating time funds

3.1.2 Equipment layout in mechanical shop areas

3.1.3 Determination of the required number of main workers

3.1.4 Determining the number of auxiliary workers

3.1.5 Determining the number of managers, specialists and other employees

3.2 NC Machine Operator Workplace Organization

4 Design and economic development of the production facility

4.1 Calculation of cost of basic materials for part manufacturing

4.2 Calculation of wages of production workers, specialists and site managers

4.2.1 Salary fund of the main workers

4.2.2 Salary Fund of Auxiliary Workers

4.3 Calculation of individual items of shop expenses for part manufacturing

4.3.1 Cost of power equipment

4.3.2 Water for industrial purposes

4.3.3 Depreciation

4.4 Calculation of costing of part manufacturing

4.5 Calculation of cost-effectiveness of part production

4.6 Technical and economic parameters of part production

Introduction

Engineering and instrument making technology largely determines its state and development. Its level depends on the efficiency of labor, the expenditure of material and energy resources, and the quality of products.

The most important achievement of scientific and technological progress is the integrated automation of industrial production. In its higher forms - computer integrated production - automation involves the functioning of multi-site interconnected technical means of various production facilities based on computer technology, software management, group organization of production and powerful special software

In such production, equipment with numerical program control (CNC) is of particular importance, which allows not only automatic control of the processing of parts, but also programming such processing remotely with the transfer of control programs through special communication channels.

The introduction of CNC in mechanical engineering technology made it necessary to build numerical models of the technological process, and therefore the widespread use of mathematical methods and numerical computing. This led to revolutionary changes in mechanical engineering technology. The technology of mechanical engineering from science, which was mainly of a qualitative nature, began to be exceeded into accurate science.

Ensuring high quality of technological processes and NC with minimum labor costs and time for their preparation and manufacture is one of the main conditions for rational use of CNC machines in industry. This condition is also related to the new principles of the organization of production .

Process programming for CNC machines is a qualitatively new step in which a significant part of the work is carried out, transferred from direct production to its technological preparation.

The theme of the diploma project is the design of a pilot technological process for the manufacture of the "Corpus" part of the production preparation department commissioned by EPO Signal LLC using CNC equipment.

Selecting Part Design Bases

Based on the analysis of the technical requirements for the product and its operating conditions, the design bases of the part are determined. The design base determines the position of the part in the product. For this part, the design base is the external threaded surface of the pipe 1/4ʺ.

To achieve the specified parameters of accuracy and roughness, it is necessary to use the principle of base alignment at all stages of the part processing, that is, when developing the machining route, the parts should, if possible, combine design, process and measurement bases.

Characteristics of part production type

Depending on the breadth of the nomenclature, regularity, stability and volume of production, modern production is divided into the following types - single, serial and mass. The nature of the process and its construction largely depend on the type of production.

Based on the mass of the part M = 0.105 kg, and the assigned production program - 5000 pieces, the type of production is small-scale. Serial production is characterized by a limited range of products produced in periodically repeated batches and a relatively large volume of production. The volume of production of mass production enterprises ranges from tens to thousands of regularly repeated products, universal, specialized and partially special equipment is used. CNC machines and processing centers are widely used, the equipment is arranged in process groups taking into account the direction of the main cargo flows of the workshop. Technological tooling is mainly universal and a high-performance special tooling is created. At the same time, the feasibility of its creation should be previously justified by feasibility studies. Rolled stock, forging and casting are used as initial blanks.

Average qualification of workers 3-5 category. In addition to highly qualified workers working on complex machines and tuners, operator workers are used.

Design and technological development

View Selection and Source Procurement Design

Forging of stamping or round rolled stock can be used as initial workpiece for the Body part on the basis of its design and dimensions. The procurement type is selected by the material utilization factor.