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Torque control device

A technology of torque control and main control, applied in the direction of automatic control device, program control, feeding device, etc., can solve the problem of inability to support the workpiece, achieve the effect of simplifying the structure and suppressing position deviation

Active Publication Date: 2015-04-15
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that proper workpiece support cannot be performed due to a change in the relative position between the headstock and the feeder (positional deviation).

Method used

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Experimental program
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Embodiment approach 1

[0043] Next, use Figure 1 to Figure 5 The torque control device according to Embodiment 1 of the present invention will be described.

[0044] figure 1 It is a configuration diagram in which the torque control device according to Embodiment 1 of the present invention is applied to an automatic lathe for a belt feeder. The spindle 1 fixes the workpiece W and drives the workpiece W to rotate. The headstock 2 on which the spindle 1 is mounted is mounted on the feed thread 3 of the main control shaft. The main control shaft feed screw 3 is rotationally driven by the main control shaft motor 4 (main control shaft), thereby moving the headstock 2 in the horizontal direction. The detector 5 attached to the main control shaft motor 4 detects the rotational position of the main control shaft motor 4 , and the detected position data of the main control shaft is input to the main control device 6 that controls the driving of the main control shaft motor 4 . The main control device 6...

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Abstract

Provided is a torque control device for driving a torque control shaft in synchronization with a main control shaft while adding a prescribed pressing force by way of the torque control shaft to a workpiece driven by way of the main control shaft, wherein position shifting can be suppressed even when the main control shaft is moved. The driving torque necessary to follow the driving of the main control shaft so that the pressing force is large can be calculated by storing the maximum and minimum values for a mechanical parameter representing a mechanical property of the driving unit being driven by the torque control shaft and selecting one of the maximum and minimum values for the mechanical parameter stored in the storage means in accordance with the driving status of the main control shaft.

Description

technical field [0001] The present invention relates to a torque control device that controls a torque control shaft and a main control shaft synchronously. Background technique [0002] A torque control device controlled in such a way that the torque control axis is driven synchronously with the main control axis, for example, an automatic lathe for a feeding machine. In the above-mentioned automatic lathe with a feeder, there are: a headstock on which a main shaft that rotates a workpiece is mounted; and a feeder that feeds the workpiece to the main shaft and moves the headstock in a horizontal direction via a main control shaft. , and the feeder is moved in the horizontal direction through the torque control shaft to apply a certain load to the workpiece. The method of position control and speed control of the main control axis is to input the position data of the main control axis through the main control device that controls the main control axis and to feed back. In a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q15/013
CPCB23Q15/013G05B2219/50216G05B15/02G05D17/02
Inventor 田边章
Owner MITSUBISHI ELECTRIC CORP