Calculate the technical and economic parameters according to the assigned processing process of "Connector" part

Contents

Introduction

The purpose of the course work is to calculate the technical and economic parameters according to the given processing process of the "nozzle" part in order to determine an economically effective version of the process. In the work, two options are compared: basic and designed.

In the design version, two manual operations are replaced by an operation performed on an NC machine.

The first part deals with issues related to the organization of production: the number of equipment, the number of workers, their category and labor productivity are determined.

The second part deals with the organization of workplaces, maintenance and repair of equipment, ensuring safety at the workplace.

The economic part contains calculations for determining the consumption and cost of basic materials, the payroll of production workers, as well as the calculation of the full costing of the representative part.

In the resulting part, the cost-effectiveness of the designed process is calculated by economic comparison of the selected process variant with the base variant.

When assessing efficiency, the comparison of different indicators: capital investments and the cost of mechanical processing is carried out by the discount method.

In conclusion, a summary table of technical and economic indicators of the work of the production unit is compiled.

Organization of equipment repair and maintenance

Electronics and instrument manufacturing is equipped with complex, high-performance and expensive equipment. During operation, the equipment loses its working qualities, mainly due to wear and destruction of individual parts, so accuracy, power, performance and other parameters are reduced. To compensate for wear and tear and maintain the equipment in normal, operable condition, systematic maintenance and repair work are required, as well as technical diagnostics measures. The wear and tear of the equipment during its operation and the inefficient organization of maintenance and repair lead to an increase in downtime in repair, to a deterioration in the quality of processing and an increase in scrap, as well as to an increase in repair costs.

Maintenance is called a set of operations to maintain the operability or serviceability of equipment when it is used as intended, during waiting, storage and transportation.

Repair is a set of operations to restore serviceability, operability or life of equipment or its components.

Maintenance and repair of the equipment at the enterprise is carried out by the repair farm. The main tasks of the organization of planning the repair service of the enterprise are:

- keeping the equipment in working, technically serviceable condition, ensuring its high productivity and uninterrupted operation;

- reduction of time and costs for maintenance and all types of repairs .

It is known that the share of maintenance costs of fixed assets transferred to the cost of production is an extremely important factor affecting the cost of goods and services produced, and therefore the competitiveness of the enterprise as a whole. At the moment, it is 810% of the cost and tends to increase. Only equipment repair costs account for about 20% of its book value. This fact is due to the fact that each piece of equipment must undergo routine repairs during the year, and a sixth of the plant's fixed assets must undergo major repairs. Moreover, equipment downtime in repair absorbs part of the annual output. Therefore, it is necessary to use a maintenance and repair system that ensures the smooth operation of production with minimal costs.

The typical structure of the repair facilities of a large and medium-sized enterprise includes: the department of chief mechanics (OGM), the repair and mechanical workshop (RMC), workshop repair services, and the plant-wide warehouse of spare parts and units.

The chief mechanic department is headed by the chief mechanic, who reports directly to the chief engineer of the plant.

As a rule, the following functional divisions are created as part of the OGM: the Bureau of Planned Preventive Repair (PPR), the Design Technology Bureau, the Planning and Production Bureau and the crane equipment group.

The PPR Bureau includes groups: inspection, equipment, spare parts and repair and lubrication facilities.

The Inspection Team plans, monitors and takes into account all types of repairs; inspects the correct operation and develops instructions for the care of equipment.

The Equipment Metering Unit maintains certificates and records of all types of equipment, monitors its movement, monitors the state of storage and quality of preservation of unidentified equipment, and conducts an annual inventory.

The Spare Parts Group establishes the item, service life, consumption rates and limits for spare parts and purchased materials, plans the production of spare parts and manages the inventory of parts.

The Maintenance and Lubrication Unit monitors the execution of the equipment lubrication schedule; sets limits on waste oil materials and on waste oil collection and regeneration.

The Design and Technology Bureau carries out all technical training of the PPR system and repair work of all types, including modernization; provides picking of books of drawings and their storage for all types of equipment.

The planning and production bureau plans and monitors the work of the repair and mechanical workshop and workshop repair services, carries out material preparation of repair work, prepares reports on the implementation of repair plans for the plant, analyzes the technical and economic indicators of the repair service of the plant, identifies non-productive costs, develops measures to eliminate them.

The crane equipment group monitors the operation and condition of all lifting and transportation mechanisms, plans and monitors the implementation of repairs of all types.

The repair and mechanical workshop is the main material base of the repair service of the enterprise. It is equipped with a variety of universal equipment and highly skilled workers. In this workshop, all the most complex work is performed on equipment repair, production and restoration of replacement parts, as well as work on equipment modernization.

Shop repair services are created in large main workshops of the plant only with the use of decentralized and mixed repair organization systems. The services are managed by the mechanics of the workshops.

The plant-wide warehouse of spare parts and units stores and records all material assets necessary for all types of repairs of equipment and lifting vehicles.

The staff of engineers and employees of the repair service of the enterprise are established depending on the number of repair units of equipment as a whole for the plant.

Occupational safety and safety at work

Labor protection is a system for preserving the life and health of workers in the process of labor activity, which includes legal, socio-economic, organizational, technical, sanitary, hygiene, medical, preventive, rehabilitation and other measures.

Safety precautions - a set of rules and regulations aimed at ensuring safe working conditions and/or carrying out any other work, as well as measures aimed at eliminating factors that cause harm to health.

Safety requirements prior to operation:

It is necessary to check the serviceability of the machine, the presence of grounding (whether the electrical grounding conductor of the machine is broken)

Check serviceability of cutting and auxiliary tools and reliability of its fixation in the tool magazine.

Check reliability of workpiece attachment.

Check availability and serviceability of fences of moving elements of the machine, as well as current-carrying parts of electrical equipment and control elements.

Check serviceability of fences for protection against chips and LPG;

Safety requirements during operation:

Do not work on the machine in the sleeves.

It is necessary to keep the workplace clean and in order, clean it in a timely manner from oil, emulsion, chips and other waste

It is necessary to check that the cutting tools are properly sharpened and have no cracks, cracks.

When working on the machine, its working area must be protected by a protective device and, in case of failure, contact the foreman.

Result Part

4.1 Determination of cost-effectiveness of the designed

process

Economic efficiency of the designed technological process is determined by its economic comparison with the basic version. It would be reasonable to use a new processing option to obtain the cost-effectiveness effect of the cost-discount method.