JPH10296533A - Cutting work method and cutting work device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a remainder material to be automatically fed and to carry out stable cutting. SOLUTION: A vice main body 42 is avoided to a position not to disturb intrusion of a feed vice device 25 by releasing a work W clamped by the vice device 42 on both left and right sides furnished on a main body vice device 13 and raising the vice main body 42 by actuating a cylinder 65 which is an avoidance means 53 when the feed vice device 25 clamping a rear end part of the work W enters a region to interfere with the main body vice device 13. Consequently, it is possible to shorten a remainder material to be automatically fed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting method and a cutting apparatus.

[0002]

2. Description of the Related Art Conventionally, two methods shown in FIGS. 10 and 11 have been known for cutting a work using, for example, a model band sawing machine as a cutting machine.

That is, in the example shown in FIG. 10, a main body vice device 203 is provided adjacent to the rear side (left side in FIG. 10) of the model band sawing machine 201. Then, the workpiece W is fed with its rear end clamped by the feed vise 205. Feed length L ₁ becomes at this time remainder dimensions up to the rear end of the workpiece W with respect to the saw blade cutting line line K-K Z
It becomes ₂ .

In the example shown in FIG. 11, a front vise device 207 is provided adjacent to the front side (the right side in FIG. 11) of the model band sawing machine 201. Then, the workpiece W is fed with its rear end clamped by the feed vise 205. Since the feed length at this time there is no L ₂ becomes the body vice device 203, device 205 sends to near the saw blade cutting line line K-K can be approached, remainder is saw blade cutting line line K-K the dimension Z ₂ until the rear end of the workpiece W to.

[0005]

By the way, when a workpiece is cut by the above-mentioned conventional model band sawing machine, a main body vise device 203 is provided adjacent to the rear side of the model band sawing machine 201 shown in FIG. in the example there, surplus material length Z ₁ of the automatic feed is disadvantageously prolonged.

A model band sawing machine 201 shown in FIG.
In the example the front vise assembly 207 adjacent to the front side is provided, remainder length Z ₂ is shortened, the workpiece W
The cutter (saw blade) may be caught in the work due to bending, centering failure, or the like.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cutting method and a cutting apparatus capable of shortening an automatic feed remaining material and enabling stable cutting.

[0008]

According to a first aspect of the present invention, there is provided a cutting method according to the first aspect of the present invention, wherein a rear end portion of a workpiece placed on a material feeding conveyor provided at a rear side of a cutting machine is provided. In a cutting method in which a material is clamped and fed to a cutting machine to perform a cutting process, (A) a work carrying-in step of placing a work on a material feeding hair provided on a rear side of the cutting machine;
(B) a work clamping step of clamping the rear end of the work placed on the material conveyor in the work loading step with a feed vise device provided in a sizing device, and (C) the feed vise device. A work feeding process in which the sizing device is advanced to send a desired cut portion of the work to a cutting line of a cutting machine,
(D) a cutting step in which a workpiece is clamped and fixed by the feed vice device and a main body vise device provided adjacent to the rear side of the cutting machine, and the workpiece is cut to a desired length; (E) the cutting process The main body vice avoiding step of avoiding each vise provided in the main body vise device upward or to the left or right when the sizing device including the feed vise device approaches the cutting line and enters an area where the main vise device interferes. ,
(F) a cutting step of fixing the work only with the feed vise device and cutting it with a cutting machine, and (G) a residual material discharging step of discharging the residual material clamped by the feed vise device. It is characterized by the following.

According to a second aspect of the present invention, there is provided a cutting apparatus comprising: a feeding conveyor provided at a rear side of a cutting machine; and a feed vise device for clamping a rear end portion of a work placed on the feeding conveyor. A sizing device provided is provided movably in the front-rear direction on the material feeding conveyor, a main body vice device for clamping a work is provided at a position adjacent to a rear side of the cutting machine, and a feeding vise provided in the sizing device is provided. When the device approaches the cutting line and enters an area where the device intervenes with the main body vise device, the main body vise device is provided with an evasion means for avoiding the left and right vice provided in the main body vise device at the avoidance position. Things.

Further, a cutting apparatus according to the present invention according to claim 3 is characterized in that, in the cutting apparatus according to claim 2, the avoidance position is located above a feed vise apparatus close to the cutting line. Things.

Still further, according to a fourth aspect of the present invention, in the cutting apparatus according to the second aspect, the avoidance position is located on both the left and right sides of the feed vise apparatus closer to the cutting line. It is assumed that.

Therefore, when the feed vise device, which clamps the rear end of the work, enters an area where it interferes with the main body vise device, the work clamped by the left and right vice provided in the main body vise device is released, and the vise is released. To the area that does not interfere in the upward direction or the left-right direction. Thus, the feed vise device can fix the work by approaching the cutting line, so that the remaining material of the automatic feed can be shortened and stable cutting can be performed.

According to a fifth aspect of the present invention, there is provided a cutting machine according to the second aspect, wherein the drive source of the avoiding means is constituted by a hydraulic cylinder. It is characterized by the following.

Therefore, the cost can be reduced by using simple components.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings.

First, in order to facilitate understanding, a line configuration of a cutting machine, for example, a model band sawing machine will be schematically described.

Referring to FIGS. 8 and 9, for example, a work loading device 3 is provided at the rear side (left side in FIG. 8) of a cutting machine 1 such as a swing type model band sawing machine. On the front side (the right side in FIG. 8), a cutting material unloading device 5 is provided. The cutting material unloading device 5 is constituted by unloading conveyors 9 and 11 provided with a plurality of rollers 7 although not shown in the drawing, and provided with a stopper 12 which is moved up and down by a cylinder or the like at an appropriate position.

The swing type horizontal band sawing machine, which is the cutting machine 1, has a well-known structure, and detailed description of its structure is omitted, but the main body vise device 13 is provided adjacent to the rear side of the cutting machine 1. It has. Note that the saw blade cutting line is indicated by line KK.

The work loading device 3 includes a material feeding conveyor 15 for feeding the work W to the cutting machine 1, and a material feeding device 17 movable on the material feeding conveyor 15 in the front-rear direction (the left-right direction in FIG. 8). And a material supply device 19 for supplying the work W to the material feeding conveyor 15.

The material conveyor 15 includes a plurality of V rollers 2
1 is rotatably provided on a gantry 23, and feeds the workpiece W transferred onto the V roller 21 to the cutting machine 1.

The material feeding device 17 includes a feeding vise device 25 for clamping the rear end of the work W, a pusher device 27 for pushing out the work W, and a sizing device 29. Referring to FIG. 9 in more detail, the sizing device 29 is provided with a plurality of linear guide rails (not shown) extending in the front-rear direction on the side surface of the gantry 23 constituting the material feeding conveyor 15. A material feeding device main body 31 is provided on a linear guide rail via a linear guide (not shown).

A rack member 33 extends in parallel with the linear guide rail and is provided on the gantry 23. A pinion 35 meshing with the rack member 33 is mounted on the material feeding device main body 31, and the pinion 35 is A rotating servomotor 37 is provided in the material feeding device main body 31. The servo motor 37 has an encoder, and the encoder measures the entire length of the work W.

The feed vise device 25 has a feed vise base 39 integrally provided on the side surface of the material feed device main body 31, and the feed vise base 15 is provided on the front side of the feed vise base 39. A vise body 41 is provided to the left and right sides of the center of the V roller 21 provided with the work W on which the work W is placed. The vise body 41 is opened and closed by the operation of a cylinder 43 that is operated by a fluid pressure. Clamp and unclampable.

The pusher device 27 moves the pusher body 47 back and forth by a fluid-pressure operated cylinder 45,
The work W is pressed by being brought into contact with the rear end face of the work W.

The feeding device 19 is provided with the feeding conveyor 1.
5, a plurality of kicker devices 51 are provided in the work support work 49 so as to extend in the front-rear direction. Since the kicker device 51 has a known structure, its description is omitted. However, the kicker plate is moved up and down by the operation of the cylinder to transfer the workpiece W to the material feeding conveyor 15.
To be supplied to

According to the above configuration, first, a work W is supplied onto the material supply device 19 by, for example, a crane or the like.
Is transferred onto the V roller 21 of the material feeding conveyor 15 by the operation of the kicker device 51. When the work W is supplied onto the V-roller 21, the V-roller 21 is driven and moved until the tip of the work W comes into contact with the stopper 12 provided on the front side of the cutting machine 1.

In this state, with the distance between the two vice bodies 41 of the feed vice device 25 provided in the material feeding device 17 largely widened, the servo motor 37 provided in the material feeding device 17 is driven to rotate the pinion 35. The material feeding device 17 is moved forward by the rack member 33. Then, after a sensor (not shown) attached to the tip of the feed vise device 25 detects the rear end of the work W, the material feeding device 17 is advanced at a very low speed.

The pusher body 47 of the pusher device 27 provided in the material feeding device 17 is at the limit of retreat, and the pusher body 4
When the workpiece 7 comes into contact with the rear end face of the work W, the servomotor 37 of the sizing device 29 provided in the material feeding device 17 does not generate a pulse, so that the work W comes into contact with the stopper 12 and the pusher body 47. It is determined that the feed vice device 2
5 is closed, and the work W is clamped.

In this state, the entire length of the work W is measured.
That is, the stopper 12 is fixed in the material feeding direction,
This is because the servo motor 37 provided in the material feeding device 17 is provided with an encoder, and its position can always be known.

After measuring the entire length of the work W, the stopper 12 is retracted, and the work W is sent to a set dimension to start cutting. Thereafter, a continuous cutting process is performed. In addition, the pusher body 47 of the pusher device 27 provided in the material feeding device 17
The material feeding and cutting work is always performed in a state of being in contact with the rear end face of the work W.

Next, regarding the main body vice device 13,
An example of the first embodiment will be described in detail.

Referring to FIG. 1, FIG. 2 and FIG. 3, first, an arrangement configuration will be described with reference to FIG.

A main body vise device 13 is provided on the rear side (left side in FIG. 2) of the cutting machine 1, and the work W is sequentially cut to a desired length while the rear end is clamped by the feed vise device 25. When the feed vise device 25 approaches the saw blade cutting line KK and enters an area where the feed vice device 25 interferes with the main body vise device 13, the vise devices 42 provided in the main body vise device 13 are avoided upward.

Therefore, the feed length of the work W is L, and the remaining material has the dimension Z from the saw blade cutting line KK to the rear end of the work W, so that the remaining material of the automatic feed is shortened. be able to.

Next, the main body vice device 13 will be described in more detail.

Referring to FIG. 1, FIG. 1 shows that the vice main body 42 provided in the main body vice device 13 includes a feed vice device 25.
And an avoiding means 53 for avoiding the invasion of the air in the upward direction so as not to hinder the invasion of the air.

That is, the main body vice device 13 includes the base 5
A vise support member 61 is provided so as to be vertically movable via bearing members 59 mounted at a plurality of positions in a support cylinder 57 provided upright on the support cylinder 57. The vice support member 61 has an L-shape, and the vice main body 42 is provided so as to hang down on a horizontal portion, and the respective vice main bodies 42 provided oppositely by a hydraulic cylinder 63 are simultaneously openable and closable. . The vise support member 61 is vertically movable by a hydraulically operated cylinder 65 provided on a base 55.

On the other hand, the work W placed on the material feeding conveyor 15 is clamped by the vice main body 41 of the feeding vise device 25 provided in the material feeding device 17.

The state shown in FIG. 3 shows a state in which the work W is clamped and cut by the vice main body 42 provided in the main body vice device 13, and the vise support member 61 is a fluid. It is positioned at the lowermost limit by the operation of the pressure-operated cylinder 65.

With the above-described configuration, FIG.
In other words, the workpiece W is clamped and cut by the main body vice device 13 and the feed vice device 25. Then, when the feed vice device 25 approaches the saw blade cutting line KK and enters an area where it interferes with the main body vise device 13, the clamp of the vise main body 42 is released as shown in FIG. This raises the vise support member 61 to avoid interference with the feed vice device 25. Then, the workpiece W is clamped only by the vice main body 41 of the feed vise device 25 to perform the final cutting. Thus, the remaining material can be shortened.

FIGS. 4 and 5 show an example of the second embodiment. That is, the vice main body 67 provided in the main body vice device 13 is provided with the avoiding means 69 for avoiding in the left and right direction so as not to hinder the invasion of the feed vise device 25.

The main body vise device 13 is provided with a vice main body 67 movably opposed to the left and right on a base 55. Each of the vise main bodies 67 can be opened and closed by a fluid pressure operated cylinder 71 provided on the base 55. It has become.

Therefore, when the feed vise device 25 approaches the saw blade cutting line KK and enters an area where it interferes with the main body vise device 13, the clamp of the vise main body 67 is released by the operation of the cylinder 71, and the vise main body is moved in the left and right direction. 67 is moved to a position where it does not prevent the feed vise device 25 from entering. Then, the workpiece W is clamped only by the vice main body 41 of the feed vise device 25 to perform the final cutting. Thus, the remaining material can be shortened.

FIGS. 6 and 7 show an example of the third embodiment. That is, the example of the third embodiment differs from the example of the above-described second embodiment in the shape of the work W. In the example of the second embodiment, the work W is a circle. Although it is a bar, in the example of the third embodiment, H
Since it is a model steel, and the constituent members are the same members as in the second embodiment, the same reference numerals are given and the description is omitted.

The present invention is not limited to the above-described embodiments, but can be embodied in other forms by making appropriate changes.

[0046]

As will be understood from the above description of the embodiments of the present invention, according to the present invention according to the first, second, third, and fourth aspects, the feed vise apparatus in which the rear end of the work is clamped is provided. When entering the area where the vise device interferes, the work clamped by the right and left vise provided in the main body vise device is released, and the vise is avoided to an area where the vise does not interfere in the upper direction or the left and right direction.

Since the feed vise device can fix the work by approaching the cutting line, the remaining material of the automatic feed can be shortened and stable cutting can be performed.

According to the fifth aspect of the present invention,
Since the drive source of the avoiding means for avoiding the vise provided in the main body vise device is constituted by a hydraulic cylinder, the cost can be reduced by simple components.

[Brief description of the drawings]

FIG. 1 shows a main part of the present invention and is a front view of a main body vise device provided with an avoiding means which is an example of an embodiment of the first invention.

FIG. 2 is an explanatory plan view of FIG. 1;

FIG. 3 is an operation explanatory view in FIG. 1;

FIG. 4 is an explanatory plan view showing an example of the second embodiment of the present invention.

FIG. 5 is a front view of FIG.

FIG. 6 is an explanatory plan view showing an example of a third embodiment of the present invention.

FIG. 7 is a front view of FIG.

FIG. 8 shows an example of an embodiment of the present invention,
It is a plane explanatory view of a cutting machine and a carrying-in / out device.

FIG. 9 is an enlarged plan view of the material feeding device taken along the arrow IX in FIG.

FIG. 10 is a plan view showing a conventional example and showing a positional relationship between a feed vise and a main body vise.

FIG. 11 is a plan view showing a conventional example and showing a positional relationship between a feed vise and a flotte vise.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutting machine 13 Main body vice device 15 Feeding conveyor 25 Feeding vice device 29 Sizing device 42,67 Vice main body 53,69 Avoidance means 65,71 Cylinder W Work XX line Saw blade cutting line

Claims (5)

[Claims] 1. A cutting method in which a rear end portion of a work placed on a material feeding conveyor provided on a rear side of a cutting machine is clamped, and the work is sent to the cutting machine to perform a cutting process. A work loading step of placing a work on a material conveyer provided on the rear side of the cutting machine; (B) a sizing device having a rear end of the work placed on the material conveyer in the work loading step; (C) a workpiece clamping step in which a sizing device provided with the feed vise device is advanced to feed a desired cut portion of the work to a cutting line of a cutting machine; A cutting step of clamping the work with a feed vice device and a main body vise device provided adjacent to the rear side of the cutting machine and cutting the work to a desired length with a cutting machine; (E) repeating the cutting process, Set with feed vise device A main body vice avoiding step of avoiding each vise provided in the main body vise device upward or to the left and right sides when the device approaches the cutting line and enters an area where it interferes with the main body vise device; (F) only the feed vise device A cutting method comprising: a cutting step of fixing a work and cutting with a cutting machine; and (G) a remaining material discharging step of discharging the remaining material clamped by the feed vise device. 2. A feeding conveyor is provided on the rear side of the cutting machine,
A sizing device equipped with a feed vise device for clamping the rear end of the work placed on the material feeding conveyor is provided movably in the front-rear direction on the material feeding conveyor, and is adjacent to the rear side of the cutting machine. A main body vise device for clamping a workpiece is provided at a position, and when a feed vice device provided in the sizing device approaches a cutting line and enters an area where it interferes with the main body vise device, a right and left vice provided in the main body vise device is provided. A cutting device comprising a main body vise device provided with an evasion means for avoiding an obstacle at an avoidance position. 3. The cutting apparatus according to claim 2, wherein the avoidance position is located at a position higher than a feed vise device close to the cutting line. 4. The cutting device according to claim 2, wherein the avoidance position is located on both left and right sides of the feed vise device near the cutting line. 5. The cutting apparatus according to claim 2, wherein a drive source of the avoiding means is constituted by a cylinder operated by fluid pressure.