Machine tool fixture for machining sleeve parts
A technology for parts processing and machine tool fixtures, applied in the direction of expanding the mandrel, etc., can solve the problems of affecting the machining accuracy, workpiece deformation, workpiece scrapping, etc., and achieve the effects of convenient operation, high positioning accuracy and simple structure
Inactive Publication Date: 2012-07-11
唐维刚
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Problems solved by technology
[0002] In the processing of mechanical parts, you will be exposed to the processing of many sets of parts. Some sets of parts have very high precision requirements for processing. Often, when the workpiece is clamped by an ordinary three-jaw chuck, it cannot meet the position accuracy requirements and makes the workpiece Large deformation occurs, which affects the processing accuracy and causes the workpiece to be scrapped
For the processing of some sets of parts, the use of traditional three-jaw chucks can no longer meet the needs of production and processing
Method used
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[0012] See figure 1 and figure 2 , the present invention provides a machine tool fixture for machining sleeve parts, including a mandrel 1 installed in the spindle hole of the machine tool, and the middle part of the mandrel 1 is provided with a boss 3, which can play the role of positioning the workpiece , the other end of the mandrel 1 is installed with an expansion sleeve 2, and a tie rod 4 is arranged in the through hole of the mandrel 1, and the other end of the tie rod 4 is installed with a tension core 5 and a lock nut 6 through a threaded connection.
[0013] Wherein, the outer surface of the other side of the mandrel 1 and the inner surface of the expansion sleeve 2 form a conical fit.
[0014] Among them, the expansion sleeve 2 is a split structure of the expansion sheet 21 divided into three equal parts in the radial direction. Two spring rings 7 are installed on the outer surface of the expansion sleeve 2 , and a hook groove I81 is provided on the inner side of t...
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The invention discloses a machine tool fixture for machining sleeve parts, which comprises a mandrel mounted in a machine tool spindle hole. A boss is arranged in the middle of the mandrel, an expansion sleeve is mounted at the other end of the mandrel, a pull rod is arranged in a through hole of the mandrel, the other end of the pull rod is connected with a tensioning core and a locking nut in a threaded manner, the expansion sleeve is of a split structure with a radially trisected expansion sheet, two spring rings are mounted on the outer surface of the expansion sleeve, a groove I is arranged on the inner side of the expansion sleeve, a groove II is arranged on the outer surface of the tensioning core, and the groove II and the groove I are mutually embedded. The machine tool fixture has the advantages of simple structure, convenience in operation and high positioning precision.
Description
technical field [0001] The invention relates to a machine tool fixture, in particular to a machine tool fixture used for machining sleeves, thin-walled sleeves and cylinder parts. Background technique [0002] In the processing of mechanical parts, you will be exposed to the processing of many sets of parts. Some sets of parts have very high precision requirements for processing. Often, when the workpiece is clamped by an ordinary three-jaw chuck, it cannot meet the position accuracy requirements and makes the workpiece Large deformation occurs, which affects the processing accuracy and causes the workpiece to be scrapped. For the processing of some sets of parts, the use of traditional three-jaw chucks can no longer meet the needs of production and processing. Contents of the invention [0003] In order to overcome the defects of the prior art, the present invention provides a machine tool fixture for processing sleeve parts with simple structure, convenient operation an...
Claims
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IPC IPC(8): B23B31/40
Inventor 唐维刚
Owner 唐维刚