JPH0938836A - Method and device for adjusting amount of opening of main body vise in cutting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a work from receiving flaws when it is conveyed by setting a time for opening a main body vise and making a controller activate a driving device of the main body vise for a setting time. SOLUTION: A digital switch 33 is primarily fixed for setting a frequency of feed but it is also used for adjusting an amount of jogging for opening of a main body vise by changing a selector switch 35; a timer in a sequencer 25 is controlled by the digital switch 33 to set a time for turning on a loosening relay 29 so as to turn on a loosening solenoid 19. The loosening solenoid 19 and a tightening solenoid 21 is activated for a command time of jogging for opening to activate a cylinder of the main body vise, thereby opening the main body vise by the desired amount of jogging for opening.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and device for adjusting the opening amount of a body vise in a cutting machine.
More specifically, the present invention relates to a method and device for adjusting the opening amount of a main body vise in a cutting machine capable of opening the main body vise by a desired amount.

[0002]

2. Description of the Related Art FIG. 7 shows an entire band saw machine 101 as a general cutting machine. Such a band saw machine 1
In 01, it comprises a cutting section 103 for cutting the material W and a material feeding section 105 for carrying the material W to be cut into the cutting section 103.

In the cutting portion 103, a band saw blade B that rotates and runs.
Cutting head 107 having S and capable of moving up and down
And a main body vise 109 for sandwiching and fixing the material W to be cut at the time of cutting.

The main body vise 109 has a main body fixing vise jaw 113 fixed on the table 111 and a main body moving vise jaw 117 which can be moved toward and away from the main body fixing vise jaw 113 by a cylinder 115.

On the other hand, the material feeding section 105 includes a frame 1 having a plurality of rollers 119 for placing and supporting the material W rotatably.
21 and a material feeding vise 123 that clamps and fixes the material W and feeds the material W to the cutting portion 103 by a predetermined amount.

The material-feeding vise 123 is movable and positionable in the material-feeding direction (downward in FIG. 7) while the lateral movement in FIG. 7 is restricted.
5 and a material feeding movable vice jaw 129 which can freely move toward and away from the material feeding fixed vice jaw 125 by a cylinder 127.

When cutting a work by continuous automatic operation of such a cutting machine, the band saw blade BS is lowered to finish the cutting, and then the band saw blade BS is raised again to the rising end, and then the body vice 109 is loosened. , Material W by the material sending vice 123
It is general to feed the material for a predetermined length.

In this case, the operation of loosening the body vice 109 is called "choice opening", and the amount of loosening the body vice 109 at that time is called "choice opening". This "choice opening amount" is generally controlled by the set value of the timer.

[0009]

However, in such a conventional technique, when the timer is set, the material W is not cut into single pieces or bundles. Therefore, the "choice opening amount" changes due to environmental changes such as the hydraulic pressure of the hydraulic system that drives the main body vice 109, the oil temperature, and the clogging of the hydraulic hose.

As a result, as shown in FIG. 8, when one end of the material W is clamped by the material feeding vise 123 in the bundle cutting, the material W is opened near the main body vise 109 and the main body vise 109 is opened. There is a risk of sending the material while it is hit. In such a case, the material W may be damaged at the time of feeding and may not be a product.

The object of the present invention was made by paying attention to the above-mentioned conventional techniques, and the "choice opening amount" of so-called "choice opening" during machining is adjusted according to each machining condition. An object of the present invention is to provide a method and device for adjusting the opening amount of the main body vise in a cutting machine that does not damage the work during feeding.

[0012]

In order to achieve the above object, a method of adjusting the opening amount of a main body vise in a cutting machine according to a first aspect of the invention is a material carried in by a material feeding device under the control of a controller. A cutting machine for holding and fixing a main body vise to perform a cutting process, wherein a time for opening the main body vise is set, and the control unit operates a drive device of the main body vise for a set time. It is what Therefore, the material feeding device carries in the material, and the material is cut while the body vice is clamped at the processing position. Therefore, when the material is carried in by the material feeding device, the control section operates the drive device of the main body vice for a set time to open the main body vice.

According to a second aspect of the present invention, there is provided a method for adjusting a body vice opening amount in a cutting machine, wherein the body vice opening amount according to the first aspect is proportional to the set time. Therefore, by setting the time corresponding to the desired opening amount, the main body vise can be opened by the desired amount.

According to a third aspect of the present invention, there is provided a device for adjusting the opening amount of a main body vise in a cutting machine, wherein the main body vice clamps and fixes the material carried in by a material feeding device under the control of a controller. The control unit includes an input unit that can set a predetermined time stepwise, a memory that stores the time selected by the input unit, and a drive device for the main body vice for the selected time. It is characterized by comprising a sequencer to be operated. Therefore, when the main body vice clamps and fixes the material carried in by the material feeding device and performs the cutting process, the desired time is selected by the input means and stored in the memory, and the sequencer selects the desired time for the main body vice. Activate the drive to open the body vice.

According to a fourth aspect of the present invention, in the apparatus for adjusting the opening amount of the body vice in the cutting machine, the sequencer according to the third aspect commands the opening of the body vice by an amount proportional to the selected time. It is characterized by that. Therefore, by selecting the time corresponding to the desired opening amount, the main body vise can be opened by an amount proportional to the selected time.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Since a general cutting machine has already been described in the section of the prior art, common parts will be denoted by common reference numerals and redundant description will be omitted.

FIG. 4 shows the hydraulic circuit 1 for operating the body vice 109. That is, one cylinder chamber 3 of the cylinder 115 that drives the main body movable vice jaw 117 is connected to the A port of the solenoid valve 9 by the oil passage 7 via the check valve 5. Also, the other cylinder chamber 1
1 is connected to the B port of the solenoid valve 9 by an oil passage 13.

The P port of the solenoid valve 9 is connected to a pump P driven by a hydraulic motor M by an oil passage 15 and further connected to a tank T. The R port of the solenoid valve 9 is connected to the tank T by an oil passage 17.

The solenoid valve 9 has a slack solenoid 19 for slackening the main body vise 109 and a tightening solenoid 21 for tightening the main body vice 109 to clamp and hold the material W.

Therefore, when the tightening solenoid 21 is turned on, the valve moves to the left in the drawing to connect the P port and the A port and the B port and the R port to supply pressure oil to one cylinder chamber 3, so that the piston 23 is moved to the right in the figure, and the main body movable vice jaw 117 is fixed to the main body fixed vice jaw 113.
And the material W is clamped and fixed. On the other hand, when the slack solenoid 19 is turned on, the valve moves to the right and the P port and B
Since the port, the A port and the R port communicate with each other and the pressure oil is supplied to the other cylinder chamber 11, the piston 23 is moved to the left, the main body movable vice jaw 117 is separated from the main body fixed vice jaw 113, and the material is moved. Release W.

FIG. 2 shows an electric circuit diagram for controlling the solenoid valve 9 described above. That is, the sequencer 25 for controlling the slack solenoid 19 and the tightening solenoid 21 of the solenoid valve 9 includes the switches of the operation panel 27 (see FIG. 3) and the slack solenoid 19 and the tightening solenoid 21 of the solenoid valve 9 of the main body vise 109. A slackening relay 29 and a tightening relay 31 for operating the are connected.

Referring also to FIG. 3, the operation panel 27
Is provided with a digital switch 33, a select switch 35, and a push button switch 37.

Although the digital switch 33 is originally provided for setting the feed frequency, the select switch 35 is used.
It is also used to adjust the opening amount of the main body vice 109 by switching. That is, the slack relay 2 is controlled by the digital switch 33 to control the timer inside the sequencer 25 to turn on the slack solenoid 19.
The time to turn on 9 is set. Here, 4
Choi opening time can be set at each stage.

The select switch 35 is provided for switching between automatic and manual operation. When the manual mode is set, the push button switch 37, which will be described later, operates by its original function, and when the automatic mode is set, Is commanded according to the set value of the digital switch 33 described above.

The push button switch 37 is composed of a plurality of switches. When the manual mode is selected by the select switch 35 described above, for example, the body vice 10
9 is to be loosened, the cutting head 107 is to be lowered, and the feeding vise 123 is to be moved forward and backward. However, when the automatic mode is set by the select switch 35, it is set in the digital switch 33. It is designed to store the stored value.

On the other hand, the loosening solenoid 19 and the tightening solenoid 21 operate the solenoid valve 9 of the hydraulic circuit 1 under the control of the sequencer 25. That is, the slack solenoid 19 and the tightening solenoid 21 are operated for the time required for opening the choise instructed by the sequencer 25 to operate the cylinder 115 of the body vice 109 to open the body vice 109 by a desired choise opening amount. It has become.

Next, referring to FIG. 1, an automatic setting operation of the choise opening of the body vice 109 will be described.

First, the choi opening amount is set by the digital switch 33 (step S1), and the select switch 35 is set.
To select the automatic mode (step S2). Then, the push button switch 37 is instructed to store the set value (step S3). As a result, the sequencer 25 stores the set value (step S4).

The sequencer 25 controls the slack relay 29 and the tightening relay 31 to operate the slack solenoid 19 or the tightening solenoid 21. That is, when the tightening relay 31 is turned on, the tightening solenoid 21 operates and the main body vice 109 clamps the material W. On the other hand, when the loosening relay 29 is turned on, the loosening solenoid 19 operates to open the body vice 109. In this way, the body vice 10
Since 9 opens the choi, the chop opening amount is confirmed (step S5).

It is judged whether or not the desired choise opening amount is obtained, and if so, the setting is completed (step S
If 7) has not been obtained, the process returns to step S1 and the above operation is repeated.

As described above, the digital switch 33
FIG. 5 and FIG. 6 in the case of performing the choise opening of the main body vice 109 by gradually setting the choise opening time by
Shown in FIG. 5 shows the relationship between each stage of the digital switch 33 and the time set in the timer inside the sequencer 25. Further, FIG. 6 shows the relationship between the time set in the timer and the choy opening amount of the body vice 109.

As is apparent from FIGS. 5 and 6, it is understood that the choy opening amount changes as the time for commanding the choy opening by the digital switch 33 changes.

From the above results, since the choise opening amount of the main body vise 109 can be controlled, it is possible to prevent the material W from being scratched and scratched by the main body vise 109 when the main body vise 109 is choi opened and the material W is fed. In addition, it is possible to freely set the choice opening amount and time corresponding to various processing conditions.

The present invention is not limited to the examples of the above-described embodiment, but can be made by making appropriate changes.
It can be implemented in other aspects. For example, in the example of the above-described embodiment, the digital switch 33, the select switch 35, the push button switch 37, etc. were originally provided for different functions, but they correspond to these switches completely. You may make it provide the thing.

In addition to the main body vise 109, the choise opening amount of the material feeding vise 123 or the like may be adjusted. It is also possible to increase the number of steps for setting the choise opening amount.

[0037]

As described above, in the method for adjusting the opening amount of the main body vise in the cutting machine according to the first aspect of the present invention, the material feeding device carries in the material and the main body vise clamps the material at the processing position. When cutting in a state, the control unit activates the drive device of the main body vice for a set time to open the main body vice, so the opening amount of the main body vice can be adjusted according to the size and length of the material. . This allows
Since it is possible to adjust the so-called opening amount of the so-called body vice during processing, it is possible to prevent the material from being damaged during feeding.

In the method for adjusting the opening amount of the main body vise in the cutting machine according to the second aspect of the present invention, since the opening amount of the main body vise according to the first aspect is proportional to the set time, the time corresponding to the desired opening amount By setting, you can open the main body vice by the desired amount.

In the adjusting device for the opening amount of the main body vise in the cutting machine according to the third aspect of the present invention, the material feeding device carries in the material under the control of the control unit and cuts the material in the state where the main body vise is clamped at the processing position. When processing, the memory stores the time selected by the input means of the control unit, and the sequencer operates the drive device of the main body vice for the selected time, so that the size and length of the material can be adjusted. You can adjust the opening amount of the body vise accordingly. Thus, the so-called body opening amount of the main body vice during the processing can be adjusted, so that it is possible to prevent the material from being damaged at the time of feeding.

According to a fourth aspect of the present invention, in the adjusting device for the opening amount of the main body vise in the cutting machine, the sequencer according to the third aspect commands the opening of the main body vise by an amount proportional to the selected time. Therefore, by selecting the time corresponding to the desired opening amount, it is possible to open the main body vice by an amount proportional to the selected time.

[Brief description of drawings]

FIG. 1 is a flowchart showing a procedure of a method for adjusting a main body vise opening amount in a cutting machine according to the present invention.

FIG. 2 is an electric circuit diagram showing a device for adjusting the opening amount of the body vise in the cutting machine according to the present invention.

FIG. 3 is an explanatory diagram showing an operation panel.

FIG. 4 is a hydraulic circuit diagram showing a device for adjusting the opening amount of the body vise in the cutting machine according to the present invention.

FIG. 5 is a graph showing the relationship between each stage of the digital switch and the time set in the sequencer.

FIG. 6 is a graph showing the relationship between the time set in the sequencer and the choise opening amount of the main body vice.

FIG. 7 is a plan view showing a general cutting machine.

FIG. 8 is an explanatory view showing a state in which the material is opened at the main body vise position when the material is sandwiched by the material feeding vise.

[Explanation of symbols]

 25 Sequencer (Control Unit) 27 Operation Panel (Input Means) 101 Band Saw Machine (Processing Machine) 109 Main Body Vise 115 Cylinder (Drive Device) 123 Feeding Vise (Feeding Device) W Material

Claims (4)

[Claims] 1. A cutting machine for performing cutting processing by holding and fixing a material carried in by a material feeding device by a control unit by a main body vise, and setting a time for opening the main body vise,
A method for adjusting the opening amount of a body vise in a cutting machine, wherein the controller drives the drive device of the body vise for a set time. 2. The method for adjusting the opening amount of the main body vise in a cutting machine according to claim 1, wherein the opening amount of the main body vise is proportional to the set time. 3. A cutting machine for performing cutting processing by holding and fixing a material carried in by a material feeding device by a main body vice under the control of a control section, wherein the control section sets a predetermined time step by step. A cutting machine comprising: a possible input means, a memory for storing the time selected by the input means, and a sequencer for operating the drive device of the main body vice for the selected time. A device for adjusting the opening amount of the body vise. 4. The apparatus for adjusting the opening amount of a main body vise in a cutting machine according to claim 3, wherein the sequencer commands to open the main body vise by an amount proportional to the selected time.