Hydraulic locking device used for motorized spindle braking
A technology of locking device and electric spindle, which is applied in driving devices, hydraulic drum brakes, manufacturing tools, etc., can solve the problems of complex assembly and axial movement of electric spindle locking.
Inactive Publication Date: 2016-11-09
BEIJING CTB SERVO CO LTD
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Problems solved by technology
[0004] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problems of complex processing and assembly of the existing electric spindle locking device and the axial movement when the electric spindle is locked, the present invention provides a braking system for the electric spindle. The hydraulic locking device, the electric spindle includes a rotating shaft and a main shaft housing; the hydraulic locking device includes a hydraulic seat fixed on the main shaft housing and a friction ring arranged on the hydraulic seat; the hydraulic There is a hydraulic channel on the seat; during operation, hydraulic oil is injected into the hydraulic channel, and the hydraulic oil drives the friction ring to radially compress the rotating shaft, thereby braking and locking the rotating shaft
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[0019] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. For example, although the hydraulic locking device for electro-spindle braking is described in the vertical direction in the description and drawings, this is only for the convenience of description and does not affect the horizontal use of the hydraulic locking device. Those skilled in the art It can be adjusted as required to suit the specific application. In practice, the electro-spindle and the hydraulic locking device are usually arranged horizontally.
[0020] It should be noted that, in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The ter...
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The invention belongs to the field of motorized spindles, particularly provides a hydraulic locking device used for motorized spindle braking and aims at solving the problem that an existing motorized spindle locking device is complex in machining and assembling, and the axial movement exists during motorized spindle locking. The hydraulic locking device comprises a flange plate, a hydraulic base fixed to a motorized spindle shell, and a friction ring arranged on the hydraulic base. One end of the hydraulic base is fixedly connected with the friction ring. The flange plate is fixedly connected with a rotating shaft of a motorized spindle. A hydraulic channel is arranged at the other end of the hydraulic base, hydraulic oil is led into the hydraulic channel, and the hydraulic oil drives the friction ring to press the flange plate in the radial direction so that the motorized spindle can be braked and locked. According to the hydraulic locking device, the structure of the locking device for the motorized spindle is simplified, axial force exerted on the motorized spindle during motorized spindle locking is eliminated, and the service life of a bearing of the motorized spindle is prolonged accordingly.
Description
technical field [0001] The invention belongs to the field of electric spindles, and specifically provides a hydraulic locking device for braking electric spindles. Background technique [0002] As early as the 1950s, high-frequency electric spindles for grinding small holes appeared. At that time, the frequency converter used vacuum tubes. Although the speed was high, the transmitted power and torque were very small. With the demand for high-speed cutting and the advancement of electronic technology, inverters and vector control drives for all solid-state components emerged as the times require; coupled with the emergence of hybrid ceramic bearings, in the late 1980s and early 1990s, milling machines appeared. , turning machining centers, and in recent years, turning and milling compound electric spindles have become increasingly popular. The turning-milling compound electric spindle generally adopts the method of gear locking or external disc brake. The processing, assembl...
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IPC IPC(8): B23Q5/20F16D49/12
CPCB23Q5/20F16D49/12
Inventor 项久鹏蒙七星
Owner BEIJING CTB SERVO CO LTD