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Positioning device that performs retracting action using air balance

一种空气平衡、定位装置的技术，应用在定位装置、自动控制装置、测量装置等方向，能够解决不能维持路径、损害增大等问题

Active Publication Date: 2013-03-06
FANUC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the case where an overload alarm is issued due to a tool colliding with a workpiece due to an error in the machining program, if the wrong tool path is maintained to stop, the damage will increase
In addition, there is a problem that the path cannot be maintained when a large acceleration exceeding the driving force of each axis is applied from the outside due to an earthquake or the like.

Method used

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  • Positioning device that performs retracting action using air balance
  • Positioning device that performs retracting action using air balance
  • Positioning device that performs retracting action using air balance

Examples

Experimental program
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Embodiment Construction

[0056] There are many devices in which a tool or a measuring probe is fixed in a vertical posture when processing a machine tool or measuring with a three-dimensional measuring device. Such a device has a high possibility of being able to stop safely as long as the vertical shaft is contracted instantaneously upward.

[0057] In the case of using an air balancer as a mechanism for counteracting the self-weight of the vertical axis, a large force can be instantaneously generated by changing the pressure of the air balancer. This is utilized as a retracting motion of the vertical axis during an emergency stop.

[0058] In an apparatus that utilizes air pressure in the brakes of each axis as a method of changing the pressure of the air balancer at the time of emergency stop, the exhaust of the brakes can be utilized. In consideration of safety, the brake can usually continue to operate without power. Therefore, the air pressure type brake is as follows: when the brake is release...

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PUM

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Abstract

The invention refers to a positioning device that performs retracting action using air balance. When an excitation of a servo motor is released due to an emergency stop, a power outage, or another operation performed on a positioning device, the positioning device uses air supplied from an air supply source to vary pressure of an air balance, which cancels a self-weight of a vertical axis driven by the servo motor, thereby moving the vertical axis.

Description

technical field [0001] The present invention relates to a positioning device that performs a contraction operation and is mounted on a machine tool or a three-dimensional measuring device in consideration of safety. Background technique [0002] Machine tools and three-dimensional measuring devices can perform arbitrary positioning control, and in many cases, high-speed driving is performed in order to shorten machining time or measurement time. In consideration of safety, these devices are equipped with an emergency stop function even during driving. In addition to pressing the emergency stop switch to manually stop the device in an emergency, the device will automatically stop when the device issues an alarm due to overload of the servo motor, etc. Also emergency stop. As a usual emergency stop method, decelerate all axes, apply the brakes to hold the position and stop. [0003] However, when each axis of the machine tool is driven to an emergency stop during high-speed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q5/58G01B21/20
CPCG05B19/4061G05B2219/49147G05B2219/49162G01B21/047G05B2219/50109B23Q11/0025B23Q3/08B23Q3/18B23Q15/00
Inventor 蛯原建三
Owner FANUC LTD