(4形状对称零件的圆角半径应对应相等，以保持零件的平衡，即：r，=r 2，R 3=Rt，外径尺1可不作规定
An introduction to the processing technology of cabinet sheet metal
In the field of sheet metal processing industry, we have been pursuing the breakthrough of the former technology processing mode, the appearance of the machine sheet metal processing and manufacturing technology, which greatly improved the production efficiency of the multi variety, multi process and small batch production of sheet metal parts, and realized the drilling, tapping, shape cutting, pattern milling and bottom surface of the sheet metal plane. Comprehensive, low cost, automatic processing of reverse scraping and other processes. After the introduction of laser products, the sheet metal processing plant is suitable for the sheet metal processing industry and the multi-function laser processing period device. It can simultaneously achieve perforation, irregular complex pattern cutting, various complex graphic characters carving, same type and heteromorphic material welding and so on.
Structural technology of the design of sheet metal parts
(3) when designing the sectional shape of bending parts, the structural characteristics of the die and the need for demoulding shall be taken into account.
(4 the fillet radius of the symmetrical parts should be equal to maintain the balance of parts, that is, R, =r 2, R 3=Rt, and outer diameter 1.
(1) the weld of the sheet metal structure should be dealt with seriously, not only to ensure the welding strength, but also to pay attention to the appearance of the weld. The rough welds will give the product a poor sense of the product.
(2) modern modeling requires clear outline, crisp and sharp turning. The small bending radius of the sheet metal processing plant for sheet metal structure is easy to ensure the flat surface of the plate.
(6) when bending a hole part, if the hole is located near the curve, the shape of the hole will be deformed when bending. To avoid hole deformation, these holes must be distributed outside the deformation zone. The center distance from the hole line to the curved half thoroughfare is as follows:
When t<2mm, L is more than t
When t is more than 2mm, L is more than 2T
(5) in the process of processing, if the inner radius of the part R is very small or clear in the process of processing, the groove should be slotted at the bend of the part or after the bending. This method is convenient for bending forming when the bending arm height of parts is low.
(8) if the curved edge of a curved part is bent to the inner side of the material, the process holes, grooves or gaps should be added to the blanking parts in advance so as to prevent the cracks and widening of the parts.
(7) when the part is bent to 90. In order to ensure that the edge has sufficient deformation stability, the line height of the curved edge must be less than 2T less than 2T, then the groove or the edge height must be increased, and the bending and milling will be made after the bending. Otherwise, the angle requirement can not be guaranteed. The side diagonal slash of the supporting arm part has entered the deformation area. When the straight line height of the bent edge is less than 2T, the bending edge dimension must be increased.
The processing method of the cabinet is suitable for the processing of sheet metal. Sheet metal cutting machine laser cutting machine three main types of main attack sheet plate, processing speed, exquisite process, good economic returns. The development and application of multifunctional and targeted sheet metal cutting machines will enrich the sheet metal processing market, and will also achieve better prospects for development. With regard to the function and performance characteristics of the cabinet sheet metal processing technology, the sheet metal processing plant collated the following information:
1. The machine sheet metal processing equipment can realize the comprehensive automatic processing of the sheet metal plane, automatically exchange the cutters such as the drill, taps and milling cutters, and can automatically realize the drilling, tapping, irregular and complex shape milling, plate pattern carving and milling, and the back scraping of the hole bottom.
2, do not need all kinds of molds, the use and processing costs are minimal, all processes are processed through ordinary cutting tools.
3. No clamping fixture is needed for all kinds of flat metal parts. The installation of sheet metal parts is very convenient, stable and reliable.
4, the use of special compaction device, positioning processing and mobile cutting process are stable and reliable;
5, automatic coordinate movement, automatic tool switching and automatic processing, high degree of automation.