Milling machine quality appraisal

milling machine is the most commonly used machine tool in machining, used to process the workpiece surface into flat surfaces, convexities, concavities, and grooves and ridges of various shapes. A milling machine performs processing by rotating and feeding the tool on the workpiece, so it is also called a milling machine tool or a milling machine tool. The main function of
milling machine is to process various metal and non-metal materials, such as aluminum alloy, steel, copper, plastic, etc. It is widely used in manufacturing industry, mechanical processing, aerospace, automobile manufacturing, electronic manufacturing and other fields. The milling machine can perform various processing methods such as slot milling, plane milling, curved surface milling, gear milling, and spiral line milling on the workpiece.
In milling machine quality appraisal cases, Zhongke Testing can provide milling machine quality appraisal services.

1, geometric accuracy detection: including measurement of flatness, straightness, verticality, roundness and other parameters. This can be achieved by using tools such as optical measuring instruments, laser measuring instruments, coordinate measuring machines, etc.
2. Functional performance test: Test whether the milling machine can perform cutting, milling, drilling and other operations as expected. Sample workpieces can be used to test the machining capabilities of a milling machine.
3, durability test: test the durability and service life of the milling machine. Testing can be done by running long production cycles or using durability testing instruments.
4, control system test: test whether the CNC control system of the milling machine is working properly. This can be tested by simulating the workflow.
5, safety test: test the safety performance of the milling machine. You can check whether the safety protection devices of the machine tool are working properly, such as emergency stop switches, safety doors, etc.

GB/T 3933.3-2002 Lifting table milling machine inspection conditions
GB/T 19362-2017 Gantry milling machine inspection conditions
GB/T 21948-2008 CNC lifting table milling machine inspection conditions
GB/T 20958-2007 CNC bed milling machine inspection conditions
GB/T 9167-2003 Spline shaft milling machine accuracy inspection
GB 20007-2005 Woodworking machine tool safety single-axis milling machine
GB/T 21947-2008 CNC special-shaped screw milling machine accuracy inspection
GB/T 13570-2008 Woodworking machine tools Single-axis milling machines Terminology and accuracy
GB/T 25660-2010 CNC small worm milling machine
GB 19999-2005 Woodworking machine tool safety Four-sided milling machines and four-sided planers
0GB/T 25657-2010 CNC spline shaft milling machine
1GB/T 21949-2008 CNC universal tool milling machine
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The CNC mechanical locking milling machine purchased by a heavy industry company did not meet the technical requirements agreed upon 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 milling machine involved in the case.
appraisal analysis results: The
appraisal analysis expert group discussed the relevant information and on-site investigation of the milling machine involved and conducted a comprehensive quality technical analysis, and made the following suggestions and conclusions:
Before the manufacturer's technical staff made adjustments, the equipment involved had a large milling volume error, which was the reason for the large error between the actual milling volume and the set volume.
has been adjusted by the manufacturer's technical staff. The error between the actual milling amount of the flat end surface and the set value is small, while the milling error of the inclined surface is still large.
The bidding document, Article 4 of the "H-shaped steel production equipment (secondary line) purchase contract" signed by both parties, and the contract attachments do not specifically agree on the milling error requirements in the quality and performance of CNC mechanical lock milling machines, and no quality standards for CNC mechanical lock milling machines were found.
refers to the relevant precision equipment standards, and the milling error of the subject object when processing inclined surface parts does not meet the requirements of the equipment precision standards.