JP2529877B2 - Squeeze machine squeeze roll transition control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a spinning roll of a spinning machine for mounting a workpiece on a rotary spindle, rotating the spindle, and pressing the squeeze roll to move the squeezing roll. The present invention relates to a transition control device.

[Conventional technology]

As one method of drawing in the spinning machine, there is a method of attaching a copying template, electrically detecting forward and backward movement of a copying roller in contact with this template, and copyingly moving a drawing roll through an electro-hydraulic conversion device. is there.

In addition, as another method, the travel locus of the squeeze roll is calculated in advance.
There is a method of storing in the NC control mechanism, and similarly shifting the squeezing roll based on the stored locus via the electro-hydraulic conversion device.

[Problems to be Solved by the Invention] In any of the above methods, it is necessary to set the squeeze roll at an accurate setting position with respect to the mandrel attached to the rotating spindle.

However, the position of the squeezing roll may need to be corrected not only when the mandrel and the squeezing roll are replaced with a change in the type of processing, but also during processing.

This position correction is usually performed by correcting the position of the tool rest to which the squeezing roll is attached and the position of the carriage on which the tool rest is mounted, but in a large spinning machine, it is difficult and dangerous to make these adjustments directly.

Therefore, as one means, there is a method of applying a voltage to the electro-hydraulic pressure converting device by operating the operation lever, and thereby moving the squeeze roll, but there is a problem that fine adjustment is difficult.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a squeezing roll shift restricting device for a spinning machine, which can accurately and easily perform fine adjustment with a pulse signal.

[Means for solving the problem]

In order to achieve the above object, the squeezing roll transfer restricting device of the spinning machine of the present invention is a drive cylinder for driving the squeezing roll facing the mandrel attached to the rotating main shaft in the front-back direction and the direction orthogonal thereto, and the transfer amount of the squeezing roll. And a position detector that outputs a pulse signal according to the shift amount and an electro-hydraulic servo mechanism that operates the drive cylinder and a manual pulse generator, and an output pulse from the manual pulse generator is output via a deviation counter. The servo mechanism is operated to drive the drive cylinder to move the diaphragm roll, and along with this, the pulse from the position detector is applied to the deviation counter to calculate the deviation value of both pulses and restrict the movement of the diaphragm roll. It is characterized by

[Work]

The pulse signal from the manual pulse generator actuates the electro-hydraulic servomechanism to drive the drive cylinder and move the squeeze roll according to the number of pulses.

The shift distance of the aperture roll is converted into a pulse signal from the position detector and applied to the deviation counter, and compared with the pulse from the manual pulse generator. When the deviation value becomes 0, the aperture roll stops.

In this case, by setting the shift amount for one pulse to a minute value, it is possible to regulate the shift amount of the squeeze roll in units of a minute value.

〔Example〕

Hereinafter, the present invention will be described based on embodiments shown in the drawings.

The spinning machine 1 includes a rotating spindle 2, a mandrel 3 attached to the spindle, and a drawing roll 4 for drawing the workpiece W along the mandrel 3.

A tool rest 5 to which the squeeze roll 4 is attached is placed on a carriage 6 so as to be movable in the front-back direction, that is, the X-axis direction with respect to the mandrel 3, and the carriage 6 is mounted on the mount 7 at a right angle to the X-axis.
It is mounted so as to be movable in the axial direction.

8 and 9 are drive cylinders for turret 5 and carriage 6, respectively
Reference numerals 0 and 11 are electro-hydraulic servo mechanisms (hereinafter simply referred to as servo mechanisms), and 12 and 13 are position detectors for detecting the position of the squeeze roll 4 via the tool rest 5 and the carriage 6.
The shift distance is converted into a pulse signal to be emitted, and for example, a linear scale is used.

Reference numerals 15 and 16 denote so-called encoder-type manual pulse generators (hereinafter referred to as manual pulsers). This manual pulsar is a rotary type, for example, 100 pulses are generated for one rotation, and 100 notches and scales are provided, and 1 pulse is generated for each notch. Right rotation is positive side and left rotation is negative side. Is configured to emit a pulse signal to.

On the other hand, the manual pulse generator 15 is a deviation counter 17, D / A converter 1
9. The servo mechanism 10 is connected to the servo mechanism 10 via the servo amplifier 21, and the other manual pulse generator 16 is connected to the servo mechanism 11 via the deviation counter 18, the D / A converter 20, and the servo amplifier 22. The output circuits of the position detectors 12, 13 are the deviation counter 17,
Connected to 18.

In the figure, 23 is a mode changeover switch, and the deviation counter 1
It determines the ratio of the number of pulses from the manual pulsers 15, 16 to the number of pulses from the position detectors 12, 13 in 7, 18 and will be described in detail later.

In the above configuration, the manual pulsar 15 is rotated clockwise to generate a pulse number according to the rotation angle, which is applied to the servo mechanism 10 via the deviation counter 17, the drive cylinder 8 is operated according to the pulse number, and the tool rest 5 is passed. To move the squeeze roll 4 forward.
The shift amount of the squeeze roll 4, that is, the shift amount of the tool rest 5 is detected by the position detector 12, and a pulse corresponding to the shift amount is generated and applied to the deviation counter 17. The deviation counter 17 compares the number of pulses from the manual pulse 15 with the number of pulses from the position detector 12, and when the deviation becomes 0, the output from the deviation counter 17 becomes 0 and the diaphragm roll 4 stops. That is, the squeeze roll 4 moves forward according to the rotation angle of the manual pulsar 15.

In this case, when it is desired to increase the forward or backward distance of the aperture roll, the mode changeover switch 23 is switched. This mode changeover switch 23 changes the number of comparison pulses in the deviation counter 17, and is, for example, × 1, ×
The range is switched between 10 and 100. For example, when the mode is switched to × 10, one pulse from the manual pulse generator 15 corresponds to 10 pulses from the position detector 12. Therefore, when the shift amount of 1 pulse is 0.01 mm, when the mode changeover switch 23 is not operated, the aperture roll 4 is 0.01 × 100 when the manual pulser makes one rotation (100 pulses).
= 1mm forward, but 10m when switched to × 10 above
Therefore, the fine feed width and the stop accuracy can be determined by switching the mode.

Further, since the diaphragm roll 4 is moved according to the number of pulses of the manual pulser, if the rotation of the manual pulser is made faster, the diaphragm roll moves faster, and if it is rotated slowly, the diaphragm roll also moves slowly, so that the speed and position can be controlled easily and accurately.

The same applies to the retraction of the squeezing roll 4 in the Z-axis direction by the other manual pulsar 16.

When performing drawing processing by the NC control mechanism 30 separately from the setting of the drawing roll position by the above-mentioned manual pulser, the NC control mechanism 30 is connected separately from the manual pulser 15 and NC control is performed in the same way as the pulse signal from the manual pulser. If the pulse from the mechanism 30 is sent to the deviation counters 17 and 18, the aperture roll 4 can be moved forward and backward and left and right through the D / A converters 19 and 20, the servo amplifiers 21 and 22, and the servo mechanisms 10 and 11.

Further, when the present invention is utilized, it can be easily performed because the shift amount of the squeezing roll by one pulse is known when the correction dimension is determined by measuring the distance between the mandrel 3 and the squeezing roll by an appropriate means. .

Although the manual pulsers 15 and 16 are individually provided for the Z-axis and the X-axis in the above-described embodiment, one manual pulser is provided and the movement of the Z-axis and the X-axis is changed through the changeover switch. It can also be controlled.

〔The invention's effect〕

Since the present invention is configured as described above, the pulse signal from the manual pulser is applied to the servo mechanism via the deviation counter, which causes the diaphragm roll to move via the drive cylinder, which shift is used for position detection. It detects by the detector and outputs a pulse signal according to the shift amount and feeds it back to the deviation counter to measure the deviation value, so that the structure is simple and it can be used together with the conventional NC control mechanism. .

[Brief description of drawings]

The figure is an overall illustration of the present invention. 1 is a spinning machine, 2 is a rotary spindle, 3 is a mandrel, 4 is a squeeze roll, 8 and 9 are drive cylinders, 10 and 11 are electro-hydraulic servo mechanisms, 12 and 13 are position detectors, and 15 and 16 are manual pulses. Transmitters, 17 and 18 indicate deviation counters.

Claims (1)

(57) [Claims] 1. A drive cylinder for driving a diaphragm roll, which opposes a mandrel attached to a rotating main shaft, in a front-rear direction and a direction orthogonal thereto, and a position for detecting a shift amount of the throttle roll and issuing a pulse signal according to the shift amount. A detector and an electro-hydraulic servo mechanism for operating the drive cylinder and a manual pulse generator are provided, and output pulses from the manual pulse generator actuate the servo mechanism via the deviation counter to drive the drive cylinder and squeeze the roll. And a pulse from a position detector is applied to the deviation counter in accordance with the shift, and the deviation value of both pulses is calculated to restrict the shift of the squeezing roll, thereby restricting the shift of the squeezing roll.