A high-precision CNC milling machine
A CNC milling machine, high-precision technology, applied in the direction of milling machines, milling machine equipment, manufacturing tools, etc., can solve the problems of milling machine worktable movement accuracy reduction, repeat positioning accuracy error, affecting processing accuracy, etc., to reduce additional effect and movement accuracy Guarantee and ensure the effect of processing effect
A CNC milling machine, high-precision technology, applied in the direction of milling machines, milling machine equipment, manufacturing tools, etc., can solve the problems of milling machine worktable movement accuracy reduction, repeat positioning accuracy error, affecting processing accuracy, etc., to reduce additional effect and movement accuracy Guarantee and ensure the effect of processing effect
CN111266634BActive Publication Date: 2020-12-25PAMA SHANGHAI MACHINE TOOL CO LTD
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[0025] As an embodiment of the present invention, grooves 61 are provided on both sides of the transmission block 6, the shape of the grooves 61 is a partial cylinder, the size of the grooves 61 matches the nut 52, and the grooves 61 make the cylinder Part of the nut 52 is engaged in the groove 61 of the transmission block 6; the screw pair 5 controls the movement of the worktable 4 through the nut 52 engaged on the transmission block 6; when working, the servo motor 7 drives the screw rod 51 to rotate , so that the nut 52 on the lead screw pair 5 moves along the helical direction of the lead screw 51. Since the two moving directions of the transmission block 6 are controlled by the two lead screw pairs 5 respectively, when one lead screw pair 5 is driven, the other The lead screw pair 5 still needs to move with the transmission block 6, and does not interact with the transmission block 6; through the grooves 61 arranged on both sides of the transmission block 6, the nuts 52 of...
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The invention relates to the technical field of milling machine equipment, in particular to a high-precision numerical-control milling machine. The high-precision numerical-control milling machine comprises a base, a stand column, a saddle, a workbench and a controller, wherein one side of the base is provided with the stand column; a milling machine is arranged on the stand column; the fixed saddle is arranged on the base; the workbench is arranged on the saddle; the controller controls movement of the workbench through the saddle; a reverse gap is generated in a reciprocating motion processof a nut on a lead screw pair; pitch errors of a lead screw are accumulated to affect workbench positioning and moving precision, so that processing precision of the numerical-control milling machineis weakened, and therefore, one lead screw pair is arranged to separately drive the saddle to move in single direction, the nut only drives and feeds in single direction, influences of pitch errors are reduced while the nut is in two-way drive on the lead screw, generation amount of the reverse gap is reduced, influences on re-positioning precision are reduced, and processing effect of the high-precision numerical-control milling machine is ensured.
Description
technical field [0001] The invention relates to the technical field of milling machine equipment, in particular to a high-precision numerical control milling machine. Background technique [0002] CNC milling machine is an automatic processing equipment developed on the basis of general milling machines. With the rapid development of social production and science and technology, mechanical products are becoming more and more sophisticated. It comprehensively applies automatic control, servo drive, precision measurement and new machinery. The technical achievements in various aspects such as structure are the development direction of CNC machine tools in the future, and the machining accuracy of CNC milling machines is an important indicator to measure its performance; for the introduction of machining accuracy of CNC milling machines, please refer to: Zeng Chao et al., Positioning accuracy detection of CNC milling machines and Research [J], Mechanical Engineer, 2018(No.2).27...
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Patent Timeline
25 Dec 2020
Publication
CN111266634B
- IPC
- B23C1/06; B23Q5/40; B23Q1/26
- CPC
- B23C1/06; B23Q1/26; B23Q5/40
- Inventors
- 薛继纲; 张小飞