Machine tool spindle front end sealing structure
A sealing structure, the technology of machine tool spindle, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of not being able to block the coolant well, the oil seal is easy to form and wear, and the sealing effect is weakened, so as to prolong the service life and improve the sealing effect. effect, the effect of slowing down the rate of wear
Active Publication Date: 2021-06-11
泉州市泉航工程机械有限公司
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Problems solved by technology
[0003]
In actual use, the oil seal is easy to form and wear under the high-speed operation of the spindle, which makes it unable to block the atomized coolant well, and the sealing effect is significantly weakened over time
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[0022] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0023] Such as figure 1 As shown, the sealing structure of the front end of the main shaft 1 of the machine tool includes a cylindrical base 2 that is sleeved outside the main shaft 1 , and the base 2 is rotatably connected with the main shaft 1 through a bearing 3 . In this embodiment, the base 2 includes a coaxially arranged base body 2a and a support body 2b, both of which are in the shape of a cylinder. It is rotationally connected with the base body 2a through the bearing 3 .
[0024] Specifically, the front end of the main shaft 1 is covered with a cylinder body 5 , and the cylinder body 5 and the main shaft 1 are sealed and firmly connected. In this embodiment, the connection between the cylinder body 5 and the ma...
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The invention provides a machine tool spindle front end sealing structure, and belongs to the technical field of machinery. The machine tool spindle front end sealing structure comprises a cylindrical base rotatably connected with a spindle, a cylinder is fixed to the front end of the spindle, an annular groove is arranged on the cylinder, the front end of the base extends into the annular groove, and the base and the annular groove form a zigzag channel with a U-shaped axial section; an annular installation groove is arranged on the outer side wall of the front end of the spindle, an annular sealing unit is fixed in the installation groove, the sealing unit is composed of ring bodies which are sequentially stacked in the axial direction of the spindle, the ring bodies are elastic and provided with openings, the openings of every two adjacent ring bodies are staggered, the outer walls of the ring bodies are attached to the inner wall of the base, and the two ring bodies at the head and the tail are respectively and tightly pressed on the two groove walls of the installation groove to form sealing; and an annular air groove is formed between the cylinder and the spindle, the zigzag channel is communicated with the air groove, an annular gap used for communicating the air groove and the installation groove is formed between the spindle and the base, an air feeder is fixed outside the base, and an air channel communicated with an outlet of the air feeder and the air groove is formed in the base. The machine tool spindle front end sealing structure provided by the invention is long in service life.
Description
technical field [0001] The invention belongs to the technical field of machinery, and relates to a sealing structure of a machine tool spindle, in particular to a sealing structure for the front end of a machine tool spindle. Background technique [0002] The spindle of a machine tool refers to the axis on the machine tool that drives the workpiece or the tool to rotate. The tool needs to cool the cutting position through the coolant when cutting the workpiece, and in order to prevent the coolant from splashing into the spindle box through the front end of the spindle, the existing practice is generally An oil seal is installed at the front end of the main shaft. [0003] In actual use, the oil seal is easy to form and wear under the high-speed operation of the spindle, which makes it unable to block the atomized coolant well, and the sealing effect is significantly weakened over time. Contents of the invention [0004] The object of the present invention is to solve the ...
Claims
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IPC IPC(8): F16J15/40F16J15/06F16J15/16
CPCF16J15/40F16J15/406F16J15/06F16J15/16F16J15/162Y02P70/10
Inventor 凌代铭
Owner 泉州市泉航工程机械有限公司