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Power device for automatic chuck of lathe

An automatic chuck and power device technology, which is applied in the direction of drive devices, chucks, metal processing machinery parts, etc., can solve the problems of weak anti-interference ability and the influence of spindle rotation accuracy, and achieve simple and reliable structure, meet the requirements of process implementation, The effect of ensuring the rotation accuracy

Active Publication Date: 2010-11-24
GUANGZHOU CITY AGILE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the carrying capacity of the static pressure bearing is slightly smaller than that of the traditional rolling bearing, and its anti-interference ability is weaker. Therefore, if the rotary hydraulic cylinder is connected with the main shaft to rotate, it will definitely have a significant impact on the rotation accuracy of the main shaft.

Method used

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  • Power device for automatic chuck of lathe
  • Power device for automatic chuck of lathe
  • Power device for automatic chuck of lathe

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Embodiment Construction

[0024] refer to figure 1 and figure 2 , a kind of power unit that is used for lathe automatic chuck of the present invention comprises headstock 12; Hollow main shaft 1, and it is installed in the headstock 12, and its front end is in order to connect machine tool chuck; Belleville spring 2, it is installed in In the hollow main shaft 1; the chuck ejector rod 3 is fixed in the hollow main shaft 1 by the butterfly spring 2. When it is pushed forward, the chuck of the machine tool can be opened to unload the workpiece. When it is retracted, the chuck of the machine tool can be closed. It is used to clamp the workpiece; the reverse buckle ring 4 is fixed on the rear end of the hollow spindle 1; the claw 6 is buckled at the end of the reverse buckle ring 4 and can float with a certain gap relative to the reverse buckle ring 4. When the claw 6 It can be engaged with each other and fastened when it moves in the opposite direction with the reverse buckle ring 4; the front end of th...

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PUM

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Abstract

The invention discloses a power device for an automatic chuck of a lathe, which comprises a spindle box, a hollow spindle arranged in the spindle box, a chuck ejector rod fixed in the hollow spindle through a belleville spring, a reverse buckling ring fixed at the rear end of the hollow spindle, a jaw which is clamped and sleeved on the reverse buckling ring, a hydraulic cylinder fixedly connected with the jaw, a centring sleeve arranged on the outer surface of the jaw in a clearance mode, a fixing seat and a sliding sleeve. The power device for the elastic chuck of the high precision lathe of the invention has the characteristics of simple and reliable structure, high controllability, high rotation precision of a spindle bearing and the spindle and no generation of an additional force under the working condition, can well meet process implementation requirements and has application in processing industries of automobile parts, precision electronic machines, electronic components, ceramic components and the like.

Description

technical field [0001] The invention relates to a power device for driving an automatic chuck of a numerically controlled lathe. The device is driven by a hydraulic cylinder and a butterfly spring, and uses a floating ferrule to remove the influence of the ejection force on the main shaft of the lathe, so that the jaws of the chuck can Fast and precise clamping of the workpiece to be processed. Background technique [0002] CNC lathes and automatic lathes are suitable for high-efficiency and high-precision parts processing, so the chuck performance of the clamped parts is very important. The automatic chuck of the lathe requires uniform and reliable clamping force, quick action and high precision under the action of the power device. At present, (hydraulic) power chucks are usually used on CNC lathes and automatic lathes. It needs to use a hydraulic rotary hydraulic cylinder as a power drive, that is, a special hydraulic cylinder is installed behind the main shaft. The pist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/30B23Q5/04
Inventor 谢政平李段能
Owner GUANGZHOU CITY AGILE MFG
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