CNC precision machining work accuracy inspection experience sharing

CNC precision machining work accuracy inspection experience sharing

In the CNC precision machining industry, the precision (accuracy) of CNC precision machining center work will simply affect the quality and output of products, so The work accuracy inspection of CNC precision machining center is the top priority of the company, and the company will share with you a little experience in the work accuracy inspection of the machining center.

(1) The positioning of the test piece The test piece should be located at the center of the X distance and placed along the Y and Z axes at a suitable position for the positioning of the test piece and fixture and the length of the tool. CNC machining greatly reduces the number of tooling, and parts with complex processing patterns do not require complex tooling. If you want to change the style and size of the part, you only need to modify the part processing program, which is suitable for new product development and modification. CNC machining CNC machining refers to the machining carried out with CNC machining objects. CNC index-controlled machine tools are programmed by CNC machining language, usually G-code. The CNC machining G code language tells the CNC machine tool which Cartesian position coordinates the machining tool adopts, and controls the feed rate and spindle speed of the tool, as well as functions such as tool changer and coolant. When there is an extra requirement for the positioning position of the test piece, it should be defined in the negotiation between the manufacturer and the user.

(2) The fixed test piece of the test piece should be conveniently placed on a special fixture to avoid Reach for very great stability of tools and fixtures. The mounting surface of the fixture and the test piece should be straight. The parallelism between the mounting surface of the test piece and the clamping surface of the fixture shall be checked. Appropriate clamping techniques should be applied to allow the tool to penetrate and machine the full length of the center hole. It is recommended to use countersunk screws to fix the specimen to avoid interference between the tool and the screw, and other equivalent techniques can also be used. The overall height of the test piece depends on the fixation technique chosen.

(3) The material, tool and cutting parameters of the test piece The material and cutting of the test piece The tools and cutting parameters are selected according to the negotiation between the manufacturer and the user, and should be recorded. The recommended cutting parameters are as follows:

1. Cutting speed: about 50m/min for cast iron; About 300m/min.

2. Feed rate: about (0.05~0.10) mm/tooth. CNC machining is the abbreviation of digital control machine tool. It is an automatic machine tool equipped with a program control system, which can make the machine tool operate and process parts according to the programmed program. It summarizes very new technologies such as machinery, automation, computers, measurement, and microelectronics. The basic components include the processing program carrier, CNC assembly, servo drive assembly, machine tool main body and other auxiliary assemblies.

3. Cutting depth: The radial cutting depth of all milling operations should be 0.2 mm. The size of the final surface machining specimen is recommended to be consistent with that specified in this specification, so as to truly reflect the cutting accuracy (accuracy) of the machine tool. The test piece can be used repeatedly in cutting experiments, and its specifications should be kept within ±10% of the characteristic dimensions given in this specification. When the test piece is reapplied, a thin cut should be made to clean all surfaces before a new finish test is performed.

This is an internationally recognized standard which acts as a form of guarantee that everything Dongguan Yifeng Metal Co., Ltd. does is managed to the highest quality standards.
Dongguan Yifeng Metal Co., Ltd. didn’t receive any negative feedback from our customers before, which proves that customers have faith in us.
custom metal parts offers the opportunity for improved manufacturing and product’s data collection, as well as direct feedback, enabling companies to better understand their consumer base and respond accordingly.