What is a Mini Milling Machine?
A mini mill is a small-sized milling machine used for smaller CNC milling or manual manufacturing processes. They can be mounted on the table workbench and used at home or at workshops. Mini mills may use metal, wood, and composite materials in order to produce different milled parts, similar to traditional milling machines. What job would you do with a mini mill? The components you create in the mini mill are usually cubic or a cube without a round profile.
The mini milling machine also consists, like other industrial mills, of a fixed cutting tool and a mobile table where the piece to be worked is placed to ensure it is simple and fast to set up small parts on the table. A rotary base with the grade mark indexed is found in many of the fraying vices. The vision makes adjusting the orientation of the job fast and simple or removing it to blast the chips for anything to verify the measurements. Larger parts may be fastened to the table directly. However, it is normally aligned vertically with a revolving shaft vertical axis.
Small CNC milling machine is high precision and efficient processing equipment, its processing form and processing capacity has been essentially different from ordinary processing equipment. First of all, its processing process is no longer like the traditional processing equipment, which requires the front-line operators to continuously control the machine tool. The whole workpiece processing of the small CNC milling machine is automatically completed under the control of the CNC system. As a front-line processor, it only needs to compile reasonable processing procedures and select reasonable processing tools according to the drawings and process requirements before processing, Then after the workpiece completes a process, the corresponding processing tool can be replaced. It can be said that in the whole processing process of the workpiece, there is no need for the processing personnel to actually control the machine tool, so its processing process is essentially different from the traditional processing mode.
The processing accuracy of a small CNC milling machine is more than that of traditional processing equipment. The reason is that its transmission mechanism is no longer composed of traditional gear speed change mechanism and T-type lead screw, but in the form of servo control system driving high-speed ball screw. Don't underestimate this small change, it can bring about a qualitative change in the processing accuracy of the workpiece.
The positioning accuracy and repeated positioning accuracy of the small CNC milling machine can reach 0.01mm, and finally, the workpiece can be processed with high accuracy. However, the machining accuracy and processing ability of the machine tool are only part of the hardware, and the final machining accuracy of the workpiece is also affected by many factors, such as the cutting tool, its own reasons, and processing technology. In addition to the machine tool itself, the causes of the workpiece machining out of tolerance are unified as objective factors. In short, the main objective factors causing the workpiece machining out of tolerance are internal factors of the workpiece Force error, self deformation caused by the machining process, and thermal deformation error.