Contents included in the assembly process:
1. Ensure the quality of product assembly and strive to improve quality to extend the service life of the product;
2. Arrange assembly reasonably Sequence and process, try to reduce the manual labor of fitters, shorten the assembly cycle, and improve assembly efficiency;
3. Minimize the assembly area and improve the productivity per unit area;
4. Minimize the cost of assembly work.
Assembly is a Chinese word that refers to the process of assembling parts according to specified technical requirements and debugging and inspecting them to become qualified products. Assembly begins with the design of assembly drawings.
Products are composed of several parts and components. The labor process of joining several parts into components or joining several parts and components into products according to specified technical requirements is called assembly. The former is called component assembly, and the latter is called general assembly. It generally includes assembly, adjustment, inspection and testing, painting, packaging and other work.
Assembly must have two basic conditions: positioning and clamping:
1. Positioning is the process of determining the correct position of parts.
2. Clamp and fix the parts after positioning
Basic specifications
1. Mechanical assembly should be carried out in strict accordance with the assembly drawings and process requirements provided by the design department During assembly, it is strictly prohibited to modify the work content without permission or change parts in abnormal ways.
2. The assembled parts must be parts that have passed the inspection and acceptance by the quality inspection department. If any unqualified parts that have been missed during the assembly process are found, they should be reported in time.
3. The assembly environment must be clean and free of dust or other pollution. Parts should be stored in a dry, dust-free place with protective pads.
4. During the assembly process, the parts must not be bumped or cut, the surface of the parts must not be damaged, or the parts may be significantly bent, twisted, or deformed, and the mating surfaces of the parts must not be damaged.
5. For relatively moving parts, lubricating oil (grease) should be added between the contact surfaces during assembly.
6. The matching dimensions of matching parts must be accurate.
7. During assembly, parts and tools should have special placement facilities. In principle, parts and tools are not allowed to be placed on the machine or directly on the ground. If necessary, they should be placed in the place where they are placed. Lay down protective mats or carpets.
8. In principle, stepping on the machinery is not allowed during assembly. If stepping operations are required, protective mats or carpets must be laid on the machinery. Trampling on important components and non-metallic parts with low strength is strictly prohibited.
Extended information:
Contents of machine parts assembly work:
1. Operation information: including general assembly drawings, component assembly drawings, parts drawings, and materials BOM sheets, etc., until the end of the project, the completeness and neatness of the drawings and the integrity of the process information records must be ensured.
2. Working place: Placement of parts and assembly of components must be carried out in the specified working place. The place for placing and assembling the complete machine must be clearly planned. Until the end of the entire project, all working places must be kept neat and tidy. Standardized and orderly.
3. Assembly materials: Before the operation, the assembly materials specified in the assembly process must be in place on time. If some non-deterministic materials are not in place, the order of the operations can be changed, and then the material expediting sheet must be filled in and submitted to the purchasing department.
4. Before assembly, you should understand the structure, assembly technology and process requirements of the equipment.