Inner blowing structure of machine tool spindle
A technology of machine tool spindles and spindles, which is applied in the direction of metal processing machinery parts, maintenance and safety accessories, metal processing equipment, etc., and can solve problems such as the processing of iron filings that cannot be used for parts, and complicated procedures.
Active Publication Date: 2018-02-09
津上精密机床(浙江)有限公司
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Problems solved by technology
[0003] For example, the Chinese Patent Publication No. CN101456136B discloses a numerically controlled spindle unit. By making the pull rod hollow, the hollow passage of the pull rod is used as the air walking passage, and the gas is sent from the tail of the spindle to the collet to the front end of the spindle. Air blowing through the cone hole removes the iron filings in the spindle taper hole. This patent can only realize the iron filing treatment on the end of the main shaft, but not on the parts. Workers need to carry out subsequent surface treatment of the parts. complicated process
Method used
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Embodiment
[0022] In an embodiment, an air blowing structure inside the main shaft of a machine tool includes a main shaft body 7, and a drive assembly for driving the main shaft body 7 to rotate in a circumferential direction is arranged outside the main shaft body 7. The drive assembly is a prior art, and will not be repeated here.
[0023] The main shaft body 7 is interlocked with a pull rod 15. According to the design of the prior art, the pull rod 15 is provided with a power cylinder that drives its axial movement. The pressing part 10 includes a connecting part 102 and a pressing part 101 which are integrally arranged. The fixing between the connecting part 102 and the pull rod 15 is realized through screw connection. Arranged in the direction, the inner circular surface of the pressing part 101 is provided with a spring collet 13, the spring collet 13 is a mature product, the spring collet 13 includes a three-petal pressing end with a slope 12, and the pressing end A space for cla...
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The invention discloses an inner blowing structure of a machine tool spindle. The inner blowing structure comprises a spindle body provided with a pull rod. The pull rod is provided with a power air cylinder driving the pull rod to axially move. The other end, opposite to the end connected with the power cylinder, of the pull rod is fixedly connected with a pressing piece. The pressing piece comprises a connecting part connected with the pull rod, and pressing parts located on the connecting part. The pressing parts are provided with pressing faces obliquely arranged. The pressing parts are circumferentially arranged on the connecting part. Collet chucks are arranged on the inner circle faces of the pressing parts, and inclined faces on the collet chucks are matched with the pressing faces. A positioning piece is arranged at the end portion of the spindle body and fixedly connected to the pressing piece. The chucks conduct clamping or loosening along with the axial movement of the pressing piece. An air conveying pipe is coaxially arranged in the spindle body, one end of the air conveying pipe is located in the pressing parts, and the other end of the air conveying pipe is connected with an air source. Providing the inner blowing structure of the machine tool spindle is the purpose, and blowing and iron scrap removing treatment can be conducted on machined components.
Description
technical field [0001] The invention relates to the technical field of machine tool spindle structures, in particular to an air blowing structure inside the machine tool spindle. Background technique [0002] The machine tool spindle structure is a relatively core part of the machine tool. The machine tool spindle in the prior art is mainly used to clamp the parts to be processed. The spindle structure usually includes a spindle body located in the center and a fixture arranged on one side of the spindle body. , there is also a drive assembly that drives the spindle body to rotate outside the spindle body. The parts are usually fixed on the fixture, and the fixture is fixed to the spindle body. The tool can process the part. [0003] For example, the Chinese Patent Publication No. CN101456136B discloses a numerically controlled spindle unit. By making the pull rod hollow, the hollow passage of the pull rod is used as the air walking passage, and the gas is sent from the tai...
Claims
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IPC IPC(8): B23Q11/12
CPCB23Q11/127
Inventor 唐东雷
Owner 津上精密机床(浙江)有限公司