xiehe model

Compared with ordinary CNC lathes, the turning turret of the turning center is equipped with power tools that can rotate milling cutters, drills and taps. At the same time, the machine tool spindle also has a C-axis function, which can be accurately indexed through the NC program and interpolated with the X-axis or (and) Z-axis. This three-axis (X, Z, C) controlled turning center can perform turning, milling, drilling, boring and tapping on parts in one clamping, and it is still the most widely used rotary compound processing machine tool in industrial production.

However, no matter how the single-spindle turning center expands the processing range, it still cannot solve the problem of secondary processing on the back of the shaft under one clamping (that is, processing of the workpiece clamping end). This must be done using a dual-spindle turning center. The two spindles of the double-spindle turning center are mostly arranged opposite each other on the same axis. After the main end of the shaft part is processed, the second spindle automatically picks up the workpiece from the main shaft and processes the clamping end.

Since the processing tasks at the clamping end are generally relatively simple, the second spindle is usually called a sub-spindle, and its power is relatively small. Dual-spindle turning centers can be equipped with one tool holder, but most are two tool holders to improve machining efficiency and maximize the potential of the machine tool. The machine is equipped with opposing main and sub-spindles on the same axis above the bed. The speed of the dual spindles is generally 0~4000r/min, both of which can be controlled by the C axis. The sub-spindle can also move along the axis to pick up the processed workpiece at one end of the main shaft. There are ten turrets around the main shaft and below the sub-spindle. Each tool position on the turret can be equipped with an electric tool with a certain power and a speed of 80~8000r/min. The upper tool post is controlled by 3 axes (X1, Y1, Z1), and the lower tool post is controlled by 2 axes (X2, Z2).

Features:

Opposite double spindles, the power and speed of the main and auxiliary spindles are the same, the upper and lower tool holders have the same power and the same function.

It can perform four-axis simultaneous turning. The main and sub-spindles can transfer and hold the workpiece synchronously without stopping the machining. In this way, all the front and back processing from the blank to the finished product can be completed, the processing speed of the workpiece is greatly shortened, and the processing time is shortened by about 40%.

With milling function, the driving power of the rotary tool spindle is 5.5kW.

The double turret adopts the left and right spindles and the upper and lower compound turrets for processing, which integrates the processing operations that previously needed to be divided into multiple processes. Using high-precision linear guides, it can maintain stable processing accuracy even after long-term continuous processing.