How to Eliminate The Indentation of The Bending Machine?

Generally speaking, how to eliminate the residual indentation and scratches of sheet metal products after bending by CNC bending machine manufacturers, the common method is to use polyurethane gaskets, plastic lower molds, or anti-indentation films. Then work hard on the mold to choose alternative ways to improve the mold. Simply put, it is to increase the R size of the water chestnuts on both sides of the V-notch of the lower mold, so as to ensure the smooth bending of the upper mold and greatly reduce the friction, which can effectively solve the indentation of the bending machine. problem.

CNC bending machine

In addition, there is a utility model metal plate bending die, which is characterized in that it is located on the upper part of the left and right slopes of the V-shaped slot of the lower die. According to the length direction of the lower die of the bending machine, the lower die is symmetrically arranged on each A horizontal forming through slot is opened, and the cross section of the forming through slot is an approximately circular bar, which is called a mandrel. Its material can be bearing steel or cemented carbide, and the molding inserts are correspondingly embedded in each molding through groove, so that the cross section of the molding inserts is processed into a circle or rectangle accordingly, and the molding inserts and The lower mold is embedded into a whole, and the partial molding strips are exposed in the gap of the molding through groove, which is higher than the left and right slopes of the V-shaped notch; during the downward bending process of the metal sheet by the mold on the bending machine, the sheet metal The bending surface of the metal will move smoothly along the exposed surface of the molding insert and gradually compress the deformation of the molding insert. The bending surface of the metal sheet does not directly contact the metal part of the lower mold, so as to achieve the metal sheet The purpose of no indentation on the bending surface.

Positioning the length of the bent side before bending. Through the shallow V-shaped grooving of the thin metal sheet, it can be used to pre-position the length of the bent side before bending, and then use the pre-marked V on the bending machine. The profiled wire groove is bent to ensure that the length of the bending side is correct, and it can replace the back gauge function of the CNC bending machine.

Anhui Yongya feels that during the downward bending process of the metal sheet by the mold on the bending machine, the bending profile of the sheet metal will move smoothly along the exposed profile of the molding strip and gradually compress the molding strip to deform. The bending profile of the sheet metal does not indirectly contact the metal part of the lower mold, so as to achieve the goal of no indentation in the bending profile of the sheet metal, which greatly advances the quality and perfection of the sheet metal for the bending product.

I believe that most people do not fully understand this question, so let’s tell you the answer to this question:

1. The adjustment of the machine. Before installation, the performance of the machine must be adjusted. This process must be carried out patiently and carefully. Check whether the bending machine has dust and used iron debris, etc., and carry out the necessary cleaning. In order to reduce the trouble in the later stage.

2. Adjust the stroke of the slider. Pay attention to the thickness and check whether the ratio of the upper and lower modules is normal. Normally, the module should be controlled at the switch point of the stroke line. This must be paid attention to.

3. The adjustment of the stroke module is to adjust the upper limit point of the module. When the module is up to a high place, set the switch and reserve the stop position of the slider, and decelerate when going down. Module to better protect the bending machine.

4. The adjustment of the gap is mainly to measure the distance between the upper module and the lower module. The specific gap setting is determined according to the folded plate.

5. Angle adjustment. The adjustment of this angle has a certain relationship with the product. Generally speaking, when folding 90°, the middle angle must be greater than the angle on both sides. Then its tightness can be carried out according to the adjustment screw. When bending, the pressure can be adjusted by the pressure gauge to avoid chipping.