I, the development of the basic principles of the assembly process
1, to ensure the quality of the product assembly, in order to extend the service life of the product;
2, reasonable arrangement of the assembly sequence and process, minimize the amount of manual labor of the clampers, shorten the assembly cycle, improve the efficiency of the assembly;
3, to minimize the assembly floor space;
4, Minimize the cost of assembly work.
Two, the development of assembly process steps
1, the study of product assembly drawings and acceptance of technical conditions
(1) review the completeness of the product drawings, correctness;
(2) analyze the structure of the product process;
(3) review of the technical requirements of the product assembly and acceptance criteria;
(4) analyze and Calculate the dimensional chain of product assembly.
2, determine the assembly method and organization
(1) assembly method: mainly depends on the size and weight of the product structure, as well as the production program.
(2) assembly organization:
1) fixed assembly: all assembly work in a fixed location. Applicable to the production of small batches of single pieces and the volume and weight of the equipment assembly.
2) mobile assembly: is to move the parts in assembly order from one assembly site to the next assembly site, respectively, to complete a part of the assembly work, the sum of the work of the assembly point is the entire product of all the assembly work. Applicable to mass production.
3, delineate the assembly unit, determine the order of assembly:
(1) the product will be divided into kits, assemblies and components, such as assembly units, hierarchical assembly;
(2) to determine the assembly unit of the benchmark parts;
(3) based on the benchmark parts to determine the assembly unit of the assembly order.
4, delineate the assembly process:
(1) delineate the assembly process, determine the contents of the process (such as cleaning, scraping, balancing, interference connection, threaded connection, calibration, inspection, test run, painting, packaging, etc.);
(2) determine the equipment and tools required for each process;
(3) formulate the assembly of each process operation specifications: such as interference fit Pressing force, etc.
(4) the development of assembly quality requirements and inspection methods for each process;
(5) to determine the time quota for each process, balancing the work of each process beat.
5, the preparation of assembly process documents.