Numerical control milling machine for precision part machining

Abstract

The invention belongs to the field of machining, in particular to a numerical control milling machine for precision part machining. The numerical control milling machine comprises a foundation bed, the bottom end of a carrying plate penetrates through the outer surface of the foundation bed, the bottom end of the carrying plate is fixedly connected with an inner cavity of the foundation bed, a supporting frame is fixedly connected to the right side of the upper surface of the foundation bed, the left side of the outer surface of the supporting frame is fixedly connected with an auxiliary plate, and the right side of the auxiliary plate is movably connected with a milling head. When the milling head is used for turning an object, a spring claw can limit and fasten a cutting connection point inside the milling head, so that the influence of vibration force on the milling head is reduced, at the moment, the vibration force on a screw can be effectively reduced, the possibility that the screw is loosened when the screw is subjected to the vibration force is reduced, the machining precision of the milling head is indirectly improved, and even if the screw falls off under the extreme condition, the spring claw can clamp the whole part of the milling head, so that the milling head is prevented from being disintegrated during high-speed rotation to threaten the safety of surrounding personnel.

Description

technical field [0001] The invention belongs to the field of mechanical processing, in particular to a numerically controlled milling machine for processing precision parts. Background technique [0002] With the rapid development of social production and science and technology, mechanical products are becoming more and more sophisticated, especially the mechanical parts required in aerospace, shipbuilding, military and other fields, which require high precision, complex shapes, and small batches. Ordinary machine tools can no longer meet these requirements. However, CNC milling machines are now used for processing. Most of the milling cutter discs of existing milling machines are fixed on the milling cutter disc by means of screw connection. The milling head connected by screws is easy to replace and easy to produce and assemble. , The advantage of maintenance, but also brings an obvious disadvantage. When the milling machine uses the milling head to turn something, the mil...

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Problems solved by technology

[0002] With the rapid development of social production and science and technology, mechanical products are becoming more and more sophisticated, especially the mechanical parts required in aerospace, shipbuilding, military and other fields, which require high precision, complex shapes, and small batches. Ordinary machine tools can no longer meet these requirements. However, CNC milling machines are now used for processing. Most of the milling cutter discs of existing milling machines are fixed on the milling cutter disc by means of screw connection. The milling head connected by screws is easy to replace and easy to produce and assemble. , The advantage of maintenance, but also brings an obvious disadvantage. When the milling machine uses the milling head to turn something, the milling head will contact with the turning raw material, and the raw material will be cut into shape through the action of friction, but the milling head will also receive the raw material. The given reaction force produces strong friction and vibration force. The friction force wears the milling head and affects the function. The vibration force has the greatest impact on the position of the connection point between the milling head and the screw. The screw is loosened by the vibration force, which leads to the milling The precision of milling head processing is reduced. In severe cases, the screws may even fall off, causing the milling head to disintegrate during high-speed rotation, posing a threat to the safety of surrounding personnel.

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