CNC machining center inspection cnc machining center acceptance and accuracy inspection work is mainly based on the manufacturer's factory certificate of acceptance of the conditions specified and the actual test methods provided by the user to determine the technical indicators on the certificate. Imported equipment must also be imported by commercial agents and customs inspection personnel. The acceptance version can be divided into several parts: unpacking inspection, visual inspection, machine tool performance and numerical control function verification and precision inspection.
The test of the box is mainly based on the inspection of the packing list. If any missing parts or model specifications are found to be inconsistent, they should be recorded and promptly contact the supplier and other departments. The visual inspection mainly depends on the appearance of the paint quality, and whether the equipment has obvious defects that can be seen by the inner eye such as collision damage, deformation, moisture and rust.
Accuracy detection is generally the last item in the installation and commissioning of machine tools. The reference index is YB 2670-82 "General Rules for Accuracy Inspection of Metal Cutting Machines", Ig)/R 230-1961d General Rules for Machine Tool Testing or JB/T 8771-1998 Inspection conditions of machining centers, etc., ordinary vertical machining, careful fine skin inspection can be divided into three parts: geometric accuracy test, positioning accuracy test and cutting dryness test.
(1) Plus 1: Inspection of the geometric accuracy of the center. It comprehensively reflects the geometrical errors of the key parts of the machine tool and the co-assembly plant. The method and content of the common gun test are similar to those of the ordinary machine tool. The requirements for the inspection side are higher. Generally, the item inspection is based on the geometrical tip inspection of the machine tool.
The general expansion and the geometric accuracy of the center are mainly as follows.
1 flatness of the work surface.
2 The mutual perpendicularity of the movement of each coordinate axis direction.
The parallelism of the work surface when moving in the 3X and Y coordinate axes.
The 4xA4 axis direction moves the parallelism of the side of the T-groove of the N work surface.
5 axial movement of the main shaft.
8 spindles tied to the bounce.
7 The parallelism of the spindle axis when the spindle head moves in the direction of the Z coordinate axis.
8 Feng axis asks the perpendicularity of the axis of the shaft to the work surface.
9 The spindle tip is moved and linear in the Z coordinate axis.
From the accuracy requirements of the 9 items in the description of the uf, the 'class accuracy requirement is the line degree, parallelism and perpendicularity of the movements of the large parts of the machine such as the bed, column, slide, and shaft box. The second type is the requirement for the spindle rotation accuracy and linear motion accuracy (cutting in the cutting motion) to perform the cutting motion. Therefore, these geometrical precisions comprehensively reflect the accuracy of the mechanical coordinate system of the machine and the geometric accuracy of the spindle representing the cutting motion in the mechanical coordinate system. The geometrical accuracy requirements of the T-shaped groove on the countertop and the T-shaped groove on the countertop are the geometrical relationship between the machining center and the mechanical coordinate system, because the table is difficult and the T-slot is difficult to locate. It is the positioning of the workpiece or the positioning of the stationery, and the coordinate system of the workpiece is often based on this.
The static accuracy of the machine tool directly affects the quality of the machined part, so the instrument for precision maintenance must meet the requirements. Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
