High-precision fixed beam type digital control plane milling and boring machine
A fixed-beam type, high-precision technology, used in large-scale fixed members, maintenance and safety accessories, driving devices, etc., can solve problems such as reducing output torque, affecting machining accuracy, and generating vibration, improving accuracy and accuracy stability, The effect of improving cutting vibration resistance and increasing contact rigidity
A fixed-beam type, high-precision technology, used in large-scale fixed members, maintenance and safety accessories, driving devices, etc., can solve problems such as reducing output torque, affecting machining accuracy, and generating vibration, improving accuracy and accuracy stability, The effect of improving cutting vibration resistance and increasing contact rigidity
CN101574777BInactive Publication Date: 2010-07-14GREATOO INTELLIGENT EQUIP INC
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[0030] refer to figure 1 , figure 2 , this high-precision fixed-beam CNC gantry boring and milling machine mainly includes a bed 501, a worktable 502, a column 503, a beam 504, a carriage 505, a ram 506, an X-axis guide rail and Its transmission system, the Y-axis guide rail and its transmission system arranged between the beam 504 and the carriage 505, the Z-axis guide rail and its transmission system arranged between the carriage 505 and the ram 506, and the Main shaft gearbox 507 and main shaft 508, as well as electrical control device, lubricating device, hydraulic device, cooling and chip removal system 400, etc. in:
[0031]refer to Figure 3-Figure 7 , the Y-axis guide rail device includes a main guide rail 220 and a side guide rail 221, the main guide rail and the side guide rails are linear rolling guide rails, and a set of sliding pairs 222 parallel to the linear rolling guide rails are set above the side guide rails 221, and the sliding pair 222 consists of The...
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The invention relates to a fixed beam type digital control plane milling and boring machine, which mainly comprises a machine body, a work table, upright posts, cross beams, a tool carriage, an ram, an X-axis guide rail, a drive system of the X-axis guide rail, a Y-axis guide rail, a drive system of the Y-axis guide rail, a Z-axis guide rail and a drive system of the Z-axis guide rail, wherein a set of slide pair which is parallel to a rectilinearly rolling guide rail pair is arranged on the basis of the prior two heavy-load roller rectilinear guide rails of a Y-axis. The invention utilizes the principle of over-positioning 'common load' of composite guide rails, and adopts an adjustable plastically stuck oblique gib to adjust the load of the slide pair, thereby driving the slide pair to have proper dynamic and static friction ratio. Simultaneously, different preloads applied on the plastically stuck surface of the slide pair by the oblique gib can generate different damping effects. Therefore, the bearing capacity and the cutting vibration resistance of the machine tool are improved and the precision and the precision stability of the machine tool are greatly improved.
Description
Technical field: [0001] The invention relates to the technical field of large-scale mechanical processing equipment, in particular to a fixed-beam numerical control gantry boring and milling machine. Background technique: [0002] Fixed beam CNC gantry boring and milling machine, mainly composed of bed, worktable, left and right columns, beam, slide plate, ram, main gearbox, console, electrical control box, hydraulic control box and X-axis, Y-axis and Z-axis guide rails and its drive control device. After the part is clamped once, it can automatically complete multi-process processing such as milling, drilling, reaming and boring, which is suitable for rough and fine machining of large and medium-sized parts in various industries. [0003] Because the X-axis, Y-axis and Z-axis guide rails and their drive control devices directly affect target positioning and machining accuracy. In existing machine tools, there are mainly the following disadvantages: [0004] 1. There are ...
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Patent Timeline
14 Jul 2010
Publication
CN101574777B
- IPC
- B23P23/02; B23Q1/01; B23Q5/00; B23Q5/04; B23Q11/12; F16H19/04; F16D3/56
- Inventors
- æ´ªæƒ å¹³; 江毅