The use of economical CNC machine tools not only meets the technical requirements of drawings, but also has low production costs. To this end, it is necessary to re-establish a reasonable processing route according to the structural characteristics of the machine tool, and design the corresponding fixtures and tools, and prepare the NC machining program. The quality of the wheel products is directly related to the safety of the passengers. Among them, the inner hub of the wheel, the surface difference of the rim, and the surface roughness of the rim and tread are the key dimensions and parts of the wheelset assembly and use. The technical requirements of the drawings must be guaranteed. The special fixture designed must meet the programmed processing route. And can be self-centered to reduce the auxiliary time required throughout the machining process.
(1) The holes and grooves on the mandrel of the two clamping jaws should be evenly spaced, and the machining should be done once on the trampoline by rotating the table, so that the wheel is balanced and the clamping is reliable. .
(2) The diameter of the mandrel required for wheel machining should be determined by the diameter of the inner hole that needs to be machined, and the two pairs of jaws that match the size of the inner hole should be selected and the jaws should be installed according to the actual machining position. The top wire is fixed on the mandrel, and then the other end of the claw is turned on the machine tool to match the size of the inner hole of the wheel, so as to clamp the wheel and make the clamping force of the clamp large enough.
(3) In order to ensure that the entire fixture has sufficient rigidity and interchangeability for machining, the mandrel and the base should be threaded and a large pitch trapezoidal thread is used. The economical CNC machine tool adopts the numerical control device and the servo feed system under its control to realize the follow-up feed, which can make the tool move in any space according to any given trajectory. In the process of executing the NC control program, in order to ensure the tool movement The trajectory does not change due to the indexing of the blade on the tool and the replacement of a new one. The change in the tool tip position should be small enough. Therefore, it is necessary to use a machine tool that is more interchangeable. (Finish)
SHELL Tank Semi-Trailer: The aluminum and carbon steel Tank Semi-Trailer is bulkly purchased by SHELL for its projects in China and South Asia for its petrol business in these areas. The material for tank body is aluminum. The tank equips the EMCO brand bottom loading system, anti-overfill system and vapor recovery system, BPW brand air suspension, air-controlled top handrail, climbing ladder, side guard, anti-slip painting walkway on the top. All of the tank complies with the SHELL`s standards.
SHELL Tank Semi-Trailer
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Yangzhou CIMC Tonghua Special Vehicles Co. Ltd. , http://www.cimc-trailers.com