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Top swivel tailstock

A rotary, top technology, applied in tailstock/top, tool holder accessories, metal processing equipment, etc., can solve problems such as bearing wear

Active Publication Date: 2020-06-30
FUTAMURA KIKI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Every bearing wears out during use

Method used

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  • Top swivel tailstock
  • Top swivel tailstock
  • Top swivel tailstock

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0096] [First embodiment (see Figures 1 to 4 )]

[0097] Figures 1 to 3 A current embodiment of a tip swivel tailstock is shown. The shaft hole 2 passes through the upper portion of the main body 1 in the front-rear direction. The tailstock mandrel 3 is assembled in the shaft hole 2 and can move forward and backward. The front end portion of the tailstock spindle 3 can protrude forward from the main body 1 . The rear end of the tailstock spindle 3 is connected to an unillustrated forward and backward movement drive mechanism. A tailstock spindle 3 is mounted on the upper portion of the main body 1 so as to be able to move back and forth.

[0098]On the outer peripheral surface of the tailstock spindle 3, a long groove 4 is formed along the front-rear direction. The pin 5 vertically passes through the upper upper wall portion of the main body 1 , and the tip of the pin 5 protrudes into the shaft hole 2 . The protruding ends of the pins 5 are arranged in the long groove...

no. 2 example

[0124] [Second embodiment (see Figures 5 to 8 )]

[0125] In the present embodiment of the top rotary tailstock, the front end portion of the top rotary mechanism unit 11 and the front end portion of the tailstock spindle 3 always protrude forward from the main body 1 . That is, the following structures are constructed. Such as Figure 5 As shown, even when the tailstock spindle 3 reaches the rearward movement end, the front end portion of the tailstock spindle 3 and the front end portion of the top rotation mechanism unit 11 protrude forward from the main body 1 . The tailstock spindle 3 is configured as a mechanism in which a front end portion is not fitted into the shaft hole 2 of the main body 1 . Even in the case where the front end portion of the tailstock spindle 3 is expanded by the fitting of the center rotation mechanism unit 11, the reciprocating movement of the tailstock spindle 3 is not hindered and is smoothly completed.

[0126] In addition, in the tailstoc...

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PUM

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Abstract

In a center-rotation type tailstock, unavailable time due to replacement of parts such as bearings is shortened. A built-in hole is formed in a tailstock spindle. A center rotating mechanism unit is attachable to and detachable from the built-in hole. In the unit, a rotary shaft is supported in a tubular body by bearings. The rotary shaft is made enable a center to be attached. When replacing the parts in the unit attached to the built-in hole, the unit is detached from the built-in hole, and another center rotating mechanism unit incorporating new parts is attached to the built-in hole.

Description

technical field [0001] The present invention relates to a tip rotary tailstock in which a rotary shaft for attaching a tip is incorporated in a tailstock spindle. Background technique [0002] In rotary machining tools typified by lathes and cylindrical grinders, a head stock and a tail stock are arranged to face each other. A rotating machining tool is configured to support a rotating object, working between a headstock and a tailstock. [0003] In the tailstock, the shaft hole passes through the main body in the front-rear direction. The tailstock spindle fits in the shaft hole and can move back and forth. The front end of the tailstock spindle is directed toward the headstock and is arranged concentrically with the main spindle of the headstock. The tip can be attached concentrically to the front end of the tailstock spindle. The tailstock spindle is non-rotatable relative to the main body. [0004] In a top swivel tailstock, a center hole is formed in the tailstock ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B23/04B23B23/00
CPCB23B23/00B23B23/04B23B2233/12
Inventor 二村忠宏山村悟佐藤雅也
Owner FUTAMURA KIKI