Precision machining center equipment quality appraisal

machining center is a high-precision CNC machine tool equipment that integrates milling, drilling, tapping, cutting and other processing functions. It is usually used in high-precision processing fields such as mold manufacturing, aerospace, and automotive parts processing. Different from traditional multi-axis CNC machine tools, machining centers have the characteristics of high efficiency, high precision, high degree of automation, and easy operation.
machining center can complete a variety of processing techniques on one machine tool, achieving one-time clamping and processing of multiple processes, greatly improving processing efficiency. The machining center has a friendly human-machine interface and an intelligent operating system. The operation is simple and easy to learn, and it is easy to achieve mass production.
In the case of precision machining center equipment quality appraisal, Zhongke Testing can provide precision machining center equipment quality appraisal services.

precision machining center generally consists of a cast iron or steel plate bed, slide, feeding system, spindle box, tool magazine, control system and other parts. At the same time, in order to improve processing efficiency, auxiliary equipment such as multi-process tools and automatic tool changing systems are usually equipped.

QB/T 4723-2014 Jewelry precision machining plaster mold
QB/T 4724-2014 Jewelry precision machining plaster mold Baking safety technical specifications
JB/T 8772.1-1998 Precision machining center inspection conditions Part 1: Inspection of geometric accuracy of horizontal and additional spindle head machine tools (horizontal Z-axis)
JB/T 8773-1998 Precision machining center Technical conditions
JB/T 8772.4-1998 Inspection conditions of precision machining center Part 4: Inspection of positioning accuracy and repeatable positioning accuracy of linear and rotary axes
JB/T 8772.2-1998 Precision machining center inspection conditions Part 2: Vertical machining center geometric accuracy inspection
JB/T 8772.5-1998 Precision machining center inspection conditions Part 5: Workpiece holding pallet positioning accuracy and repeatable positioning accuracy inspection
JB/T 8772.7-1998 Precision machining center inspection conditions Part 7: Accuracy inspection of finished specimens

The four machining center equipment purchased by a machinery company did not have any axis offset or excessive accuracy problems in the early stages of processing and production. They did not meet the technical requirements agreed in the agreement, and a dispute arose with the equipment manufacturer.
was entrusted by the court to conduct an appraisal and analysis on "whether there are quality problems" with the precision machining center equipment involved in the case.
appraisal analysis results: The
appraisal analysis expert group discussed the relevant information and on-site investigation of the precision machining center equipment involved in the case and conducted a comprehensive quality and technical analysis, and made the following suggestions and conclusions:
involved The mechanical geometric accuracy of the four machining center equipment in the case includes the operating platform table surface accuracy, T-slot parallel accuracy and spindle verticality in which the Z-axis is perpendicular to the The motion accuracy of the four
machining center equipment is generally not within the allowable deviation value of the national standard. This may be mainly due to the fact that the pitch error compensation values displayed by the four equipment are all zero, and the equipment side did not use laser laser detection equipment to detect and adjust the pitch error compensation value before leaving the factory or after the equipment was installed and debugged.