Knife breaking left-hand thread device for main shaft of machine tool
A machine tool spindle and spindle technology, applied in the field of machine tools, can solve problems such as reducing the service life of the spindle bearing, and achieve the effect of prolonging the life of the spindle and reducing damage
Inactive Publication Date: 2010-06-30
WEIHAI HUADONG AUTOMATION
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Problems solved by technology
[0002] As we all know, in the past, the tooling system of the machine tool spindle used a separate tooling cylinder or a simple hydraulic cylinder. The force exerted by these two tooling methods is all borne by the spindle bearing, thereby reducing the use of the spindle bearing. life
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[0009] figure 1 As shown, the present invention is provided with a main shaft 1, a main shaft bearing 13 is set on the main shaft 1, a pull rod 8 is inserted in the inner cavity of the main shaft 1, a disc spring 12 is set on one end of the pull rod 8, and a key is radially fixed at the other end of the pull rod 8. 11. The two ends of the key 11 pass through the keyway of the main shaft 1, the two ends of the key 11 are fixed by the fixing ring 7, the left end of the main shaft 1 is fixed with the ring pad 2, the ring pad 2 is fixed on the main shaft 1 through the lock nut 14, and the main shaft 1 The piston 4 is set in the sleeve, the piston 4 is located in the cylinder body 5, the cylinder body 5 is covered with a sleeve 10, a pressure spring 9 is compressed between the right end of the sleeve 10 and the right end of the cylinder body 5, and the left end of the cylinder body 5 is fixed with a support sleeve by bolts 3. The oil inlet of the cylinder body 5 is connected with a...
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The invention relates to a knife breaking left-hand thread device for a main shaft of a machine tool, belonging to the field of machine tools. The device of the invention is provided with a main shaft; a draw rod is inserted into an inner cavity of the main shaft; a disk spring is sleeved at one end of the draw rod; a key is radially fixed at the other end of the draw rod; two ends of the key penetrate through a key groove of the main shaft; a ring gasket is fixed at the left end of the main shaft; a piston is sleeved on the main shaft and positioned in a cylinder body; a sleeve is sleeved outside the cylinder body; a pressure spring is compressed between the right end of the sleeve and the right end of the cylinder body; and a support sleeve is fixed at the left end of the cylinder body. Based on an original hydraulic cylinder, in the invention, the force applied when the main shaft beaks a knife is counteracted, thereby reducing the damage of a main shaft bearing and prolonging the service life of the main shaft.
Description
technical field [0001] The invention relates to the field of machine tools, in particular to a device for counter-clamping a tool of a machine tool spindle. Background technique [0002] As we all know, in the past, the tooling system of the machine tool spindle used a separate tooling cylinder or a simple hydraulic cylinder. The force exerted by these two tooling methods is all borne by the spindle bearing, thereby reducing the use of the spindle bearing. life. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a knife-knitting reverse buckle device for the spindle of a machine tool. On the basis of the original hydraulic cylinder, the force applied when the spindle is punching can be offset, thereby reducing the damage of the spindle bearing and extending the length of the spindle. life. [0004] The technical solution adopted by the present invention to solve the technical problem is: a tooling rev...
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IPC IPC(8): B23Q3/157
Inventor 谭景瑞刘光伟逯长鹏
Owner WEIHAI HUADONG AUTOMATION