Electric main shaft of turning and milling combined machining center
A composite machining center and motorized spindle technology, which is applied to metal processing equipment, metal processing machinery parts, manufacturing tools, etc., can solve the problems of large damage to matching parts, affecting processing accuracy, and large power required for locking, so as to achieve the goal of not changing the power. Large, small damage, extreme damage effect
Inactive Publication Date: 2018-11-30
辽宁西格马数控机床有限公司
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Problems solved by technology
This caliper-type locking device is a kind of mandrel braking device. The power required for locking is relatively large, and the locked fittings are greatly damaged. Micromotion will occur at the moment of locking, which will affect the machining accuracy.
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[0029] Figure 1~Figure 11 Among them, the electric spindle of the turning-milling compound machining center has a box body 1, in which there is a connected built-in motor (not shown in the figure) and a circular tubular mandrel 2, and the upper end of the mandrel is connected with a chuck 3 for clamping the workpiece , the top of the box is connected with the upper bearing flange 4 of the box, the upper bearing flange has a cylindrical flange neck 5, and there is a bearing 6 between the flange neck and the mandrel.
[0030] Above the upper bearing flange, there is a three-tooth disc hydraulic locking device 7,
[0031] The three-toothed disc hydraulic locking device has a fixed toothed disc 8 and an upper annular hydraulic cylinder 9 sequentially connected between the upper bearing flange and the chuck, the upper end of the upper bearing flange has a lower annular hydraulic cylinder 10, and the upper and lower annular hydraulic cylinders The cylinder mouths of the cylinders ...
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The invention provides an electric main shaft of a turning and milling combined machining center. A motor and a cutter shaft which are connected through a connecting shaft joint are arranged in a boxbody, and a three-fluted-disc hydraulic locking device is arranged below the connecting shaft joint. The locking device is provided with a fixed fluted disc positioned in the box body and a movable fluted disc positioned on the cutter shaft. Annular hydraulic cylinders with opposite cylinder openings are arranged on the upper and lower sides of the fixed and movable fluted discs, and the lower endface of an upper annular piston in the upper annular hydraulic cylinder is provided with a duplex locking fluted disc which can be meshed with the fixed fluted disc and the movable fluted disc respectively. The lower annular hydraulic cylinder is an inner and outer duplex annular hydraulic cylinder, a lower inner annular piston is arranged in a lower inner annular hydraulic cylinder body, and a lower outer annular piston is arranged in a lower outer annular hydraulic cylinder body. An annular piston rod capable of abutting against the lower disc surface of the movable fluted disc is arrangedabove the lower inner annular piston, and an annular piston rod connected to the duplex fluted disc is arranged above the lower outer annular piston. By means of the three-fluted-disc hydraulic locking device in the cutter main shaft box, the cutter shaft can be stably locked and does not need to be matched with an extra turning tool sleeve for machining in use.
Description
technical field [0001] The invention relates to an electric spindle of a turning-milling compound machining center, in particular to a spindle locking device of the turning-milling compound machining center electric spindle. Background technique [0002] The turning-milling compound machining center is a kind of processing machine tool with compound functions such as turning and milling. The turning-milling compound machining center can realize multiple processing procedures for one-time clamping parts, facilitate the processing of complex and special-shaped products, and avoid the secondary clamping. The precision loss and benchmark loss improve the machining accuracy and shorten the machining time. [0003] The electric spindle of the turning-milling compound machining center has a box body, which is connected with a built-in motor and a mandrel. The upper end of the mandrel is connected with a chuck for clamping the workpiece. The bearing flange has a cylindrical flange ...
Claims
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IPC IPC(8): B23B19/02
CPCB23Q1/70
Inventor 张雷冯小勇冯博李猛徐宁白永强候婷杨旭王馨迎舒强熊蜀
Owner 辽宁西格马数控机床有限公司