turret cnc center

Working Principle Of Turret Lathe

Turret NC lathe is an automatic machine tool with high precision and efficiency. This paper introduces the relevant knowledge of NC turret machine tool. Hope to help you!

Machine Tool Structure

The machine tool pursues high rigidity and large damping to ensure the accuracy under load. It can be adjusted through stiffeners and molding sand, or the load resistance can be strengthened through symmetrical structure (which will reduce the impact of temperature rise). Generally, the vertical is not as good as the horizontal and gantry.

According to the movement mode, it can be divided into worktable movement and spindle box movement. Generally, the lighter part is selected to move. If the workpiece is heavy, move the spindle. In order to pursue high speed and high precision, the horizontal machining center will even adopt the structure of frame in frame or box in box (multi support, good rigidity, symmetrical structure and little influence of thermal deformation).

Lathe turret is generally divided into in-line type and VDI type:

1.In Line Turret CNC Center

The in-line turret directly installs the tool on the tool holder. Because there are few adapters in the middle of the in-line turret, the rigidity of the tool is very good after clamping, but it takes time to change the tool. When selecting a tool, the form and size of the tool should be determined according to the width of the insert groove of the turret. When installing boring and drilling tools, it is necessary to transfer the tool holder. The tool holder is made of self boring and has no interchangeability. During installation, pay attention to the matching of machine tool and tool number. The size of boring cutter and drill bit shall refer to the form and size of adapter tool base, and transition sleeve can be added if necessary.

2.VDI Turret CNC Center

VDI turret, which can not be installed directly, but needs to adopt various forms of VDI adapter cutterbed. Because these tool holders are installed on the surface of the tool tower, the cantilever is longer and the rigidity is not as rigid as the in-line type. The interface between VDI turret and tool holder is mainly determined according to the tool mounting aperture on the end face of the turret. For example, the tool mounting aperture is? 40mm, vdi40 interface is selected for VDI tool holder. In addition, when selecting the tool holder, it should be noted that the VDI tool holder is divided into left and right tool holders, positive and negative tool holders, etc. This should be determined according to the orientation of the turret of the machine tool and the processing technology. The right cutterbed is selected for the turret rear mounted machine tool; On the contrary, it is the left cutterbed. Positive and negative cutterbed, etc. This should be determined according to the orientation of the turret of the machine tool and the processing technology. The right cutterbed is selected for the turret rear mounted machine tool; On the contrary, it is the left cutterbed. Two factors must be considered in the selection of positive and negative tool holders, that is, the front and rear position of the tool tower of the machine tool and the positive and reverse rotation of the main shaft, which must be correctly selected for normal use.

Working Principle Of Turret Machine Tool：

The turret adopts a single action turret, which has rich functions and can realize the milling function. When working, rotate the required cutter to the position of No. 1 cutter with the cutter head, and the cutter can process the workpiece at the position of No. 1 cutter. When using the power cutter, the power cutter will rotate only when processing at the position of No. 1 cutter, while the power cutters at other positions will not rotate, so the noise and energy consumption are small, the efficiency is high and the accuracy is high.

The line rail part includes Z-direction line rail, Z-direction sliding block, X-direction bed saddle, X-direction line rail and X-direction sliding block. There are two Z-direction line rails. The two Z-direction line rails are parallel to each other and fixedly arranged on the base part. The z-direction sliding block is at least one pair, and the paired Z-direction sliding blocks are respectively arranged on the two Z-direction line rails and can slide back and forth along the z-direction line rail; The x-direction bed saddle is fixedly arranged on at least one pair of Z-direction sliding blocks, the x-direction bed saddle can slide back and forth along the z-direction line rail with the z-direction sliding block, there are two X-direction line rails, the two X-direction line rails are parallel to each other and fixedly arranged on the x-direction bed saddle, the X-direction sliding blocks are at least one pair, and the paired X-direction sliding blocks are respectively arranged on the two X-direction line rails and can slide back and forth along the x-direction line rail.

The cutter base part comprises a main sliding plate and a single acting cutter tower. The main sliding plate is fixedly arranged on at least one pair of X-direction sliding blocks. The main sliding plate can slide back and forth along the x-direction line rail with the x-direction sliding block. The single acting cutter tower is provided with a rotatable cutter head, and the cutter groove surface of the rotatable cutter head of the cutter head is provided with several cutters.