JPH06155157A - Cutting machine - Google Patents

Abstract

PURPOSE:To smoothly carry a workpiece in and out by providing a movable vice jaw above a work table in the vicinity of a cutting position. CONSTITUTION:A transverse unit 15, formed of a fixed vice jaw 29F and a movable vice jaw 29M, for clamping a workpiece W from a direction orthogonal to a carry in direction is provided above a work table 11, in the vicinity of a cutting position. Next, the workpiece W, cut in the vicinity of the cutting position, is surely fixed to be interposed from the right and left by these jaws 29F, 29M. Here is provided the movable vice jaw 29M above the work table 11 in the vicinity of the cutting position. Thereafter, upper/lower clamp units 17 fix the workpiece W retained from the above, to cut it at a time by transversely arranging a plurality of the workpieces.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting machine, and more particularly to a cutting machine characterized by a clamp device for fixing a workpiece to be cut.

[0002]

2. Description of the Related Art Conventionally, in a cutting machine such as a saw machine, it has been known that a workpiece to be cut is clamped by clamping devices provided in front of and behind a saw blade and is cut between the clamping devices. There is.

In such a clamp device, the movable side vice jaw reciprocates to approach the fixed side vice jaw to fix the work by sandwiching it from both sides, and the work is easily cut by a rotating saw blade. It is provided so that it can be done.

[0004]

However, in such a conventional technique, a guide groove for reciprocating the vice jaw on the movable side is formed on the upper surface of the work table. Because the work moves
The end material generated by cutting the front end or the rear end may drop or get caught in the guide groove. For this reason, the loading of work. There is a risk that the work cannot be carried out and the work is interrupted.

An object of the present invention is to pay attention to such a conventional technique, and it is an object of the present invention to provide a cutting machine which can smoothly carry in and carry out a work without being caught.

[0006]

In order to achieve the above object, a cutting machine according to the present invention is provided with a work table in which a scrap material can be smoothly moved in the vicinity of a cutting position, and the work table is placed on the work table. A lateral clamping device composed of a fixed vise jaw and a movable vise jaw for clamping a work from a direction orthogonal to the carrying-in direction is provided, the movable vise jaw is provided above the work table, and the work is pressed and fixed from above in the vicinity of the cutting position. An upper and lower clamp device is provided.

The upper and lower clamp devices can be provided below the horizontal clamp device or above the horizontal clamp device.

Further, a residual material dispensing device having a dispensing kicker that can move back and forth to push out the residual material of the cut work in the workpiece unloading direction is provided behind the horizontal clamp device and the vertical clamp device so as to be vertically movable. desirable.

[0009]

According to the cutting machine of the present invention, the horizontal clamping device composed of the fixed vice jaw and the movable vice jaw for clamping the work in the direction orthogonal to the carrying-in direction is provided near the cutting position above the work table. The work to be cut in the vicinity of the cutting position can be reliably fixed by sandwiching it from the left and right. Since the movable vise jaw is provided above the work table near the cutting position, it is not necessary to provide a guide groove for the movable vise jaw on the upper surface of the work table. Therefore, when the work moves on the work table near the cutting position, the work can be smoothly carried in and out without being caught in the guide groove.

Further, since the upper and lower clamp devices press and fix the works from above, even when a plurality of works are arranged side by side and cut at a time, the works can be easily cut without moving. At this time, by providing the upper and lower clamp devices below or above the horizontal clamp device,
Since the vertical clamp device and the lateral clamp device can be provided close to the cutting position, the work can be effectively fixed.

Further, a residual material discharging device having a vertically movable movable discharging kicker for pushing the residual material in the workpiece unloading direction is provided at the rear of the horizontal clamping device and the vertical clamping device so as to be movable up and down. It is possible to easily carry out short scraps. Moreover, since the residual material dispensing device can be raised during the cutting process, it does not interfere with the process.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 8, a horizontal band saw machine 1 as a cutting machine comprises a box-shaped base 3 and a cutting head 5 having a substantially C-shape as a whole. The cutting head 5 has a hinge pin 7 interposed therebetween. The base 3 is pivotally supported so that it can be raised and lowered. That is, the cutting head 5 is configured to be vertically moved around the hinge pin 7 by the lifting cylinder 9, and the action of the lifting cylinder 9 causes the saw blade BS to be cut into and lifted from the work W. is there.

Referring to FIGS. 2 and 4 together, a work table 11 on which a work W is movably mounted is provided on the upper part of the base 3, and a large number of rollers 13 are provided.
Is rotatably provided. The work table 11A near the cutting position is formed of a plate, and the upper surface thereof is a flat surface except for the groove G provided for passing the saw blade BS at the cutting position.

Further, the work W is placed in front of and behind the saw blade BS.
A lateral clamp device 15 described below is provided for sandwiching and fixing the workpiece W from the left-right direction, and a vertical clamp device 17 described later is provided for pressing and fixing the work W from above.

The cutting head 5 is provided with housings 19R and 19L spaced apart from each other on both sides. A drive wheel 21 which is rotationally driven by a drive means (not shown) and a driven wheel 23 which is freely rotatable are provided in the housings 19R and 19L, respectively, and an endless saw blade BS is attached to the drive wheel 21 and the driven wheel 23. It is wound.

A fixed side guide 27F and a movable side guide 27M in the saw blade guide device are mounted on the beam member 25 connecting the left and right housings 19R and 19L. The fixed side guide 27F and the movable side guide 27M are
In the cutting region where the saw blade BS cuts the work W, the saw blade BS is guided and supported in a state of being twisted and raised by a predetermined angle so that the tooth tips of the saw blade BS face vertically downward.

The fixed side guide 27F is fixedly attached to the beam member 25 so as to correspond to the fixed vise jaw 29F of the lateral clamp device 15, and the movable side guide 27M corresponds to the size of the work W. Beam member 25
The position is adjustable along the.

With the above structure, a drive motor (not shown) rotates the drive wheel 21 while the saw blade BS is wound around the drive wheel 21 and the driven wheel 23, and the saw blade BS is rotated.
To drive. At this time, the saw blade B in the cutting area
Since S is guided with the fixed-side guide 27F and the movable-side guide 27M twisted and raised, the saw blade BS can cut the workpiece W in the same direction as the cutting direction.

Referring to FIGS. 1 and 2, on the base 3, there is provided a work table 11 for loading and unloading the workpiece W to be cut as described above. The saw blade BS is running at the cutting position, and the work W is positioned at the cutting position on both front and rear sides (left and right sides in FIG. 2) with the saw blade BS sandwiched between the saw blade BS and the horizontal direction (FIG. 1). A pair of lateral clamp devices 15 is provided to prevent movement in the middle left-right direction.

A cylinder mount 31 is provided on the left side of the work table 11 on the upper surface of the base 3, and a horizontal clamping cylinder 35 for moving the movable vice jaw 29M is provided on the upper side of the cylinder mount 31. Has been. Further, above the base 3, a guide bar 37 that crosses the upper surface of the base 3 in the left-right direction in the drawing over substantially the entire width.
Are provided in front of and behind the saw blade BS. The left end of the guide bar 37 is fixed to the upper end of the cylinder mount 31, and the right end of the guide bar 37 is fixed to the upper part of the fixed vise jaw 29F.

The lateral clamp device 15 comprises a fixed vise jaw 29F and a movable vise jaw 29M. Each vise jaw 29F, 29M has an inverted L-shaped cross section, and has two guide holes 41, 41 in the upper horizontal portion 39.
The guide bar 37 passes through the guide holes 41, 41. That is, it is not necessary to provide a guide on the lower side of the movable vice jaw 29M, and the movable vice jaw 29M is guided by the guide bar 37 in a state of floating above the work table 11A. For this reason, the upper surface of the work table 11A near the cutting position is flat except for the portion where the saw blade BS runs.

Therefore, the horizontal clamping cylinder 35 moves the movable vise jaw 29M to the fixed vise jaw 29F side along the guide bar 37, whereby the workpiece W is moved.
Will be clamped from the left and right sides.

Below the fixed vise jaw 29F and the movable vise jaw 29M on the upper side of the work table 11A, the upper and lower clampers 43 in the upper and lower clamp device 17 for covering the cutting width by the saw blade BS from above are located at the front and rear positions of the saw blade BS. Each is provided. The upper and lower clampers 43 are generally U-shaped, and are vertically movable by being guided by guides 45, 45 provided on both left and right sides of the work table 11.

A vertical clamping cylinder 47 for vertically moving the vertical clamper 43 is provided on the right side of the base 3 in the drawing in the vertical direction.

Therefore, the vertical clamp cylinder 47 lowers the vertical clamper 43 to press the work W from the upper side to prevent the vertical movement.

Since the work W positioned at the cutting position is clamped and fixed by the lateral clamp device 15 from the left and right direction, and further the vertical clamp device 17 presses and fixes it from the upper side. The work W can be cut while a large number of works W are fixed at one time.

Thus, since the guide bar 37 is provided above the work table 11A and the upper part of the movable vice jaw 29M of the lateral clamp device 15 is movably guided by the guide bar 37, the movable vice is placed on the upper surface of the work table 11A. It is not necessary to provide a guide groove for the jaw 29M. Therefore, when the work W moves on the work table 11A, the work W can be smoothly carried in and out without being caught in the guide groove.

Further, since the vertical clamp device 17 presses and fixes the works W from above, even when a plurality of works W are arranged side by side and cut at a time, the works W can be easily cut without moving. At this time, by providing the vertical clamp device 17 below the horizontal clamp device 15, the vertical clamp device 17 and the horizontal clamp device 1 are provided.
Since 5 can be provided close to the cutting position, the work W can be effectively fixed.

In the above embodiment, the case where the vertical clamp device 17 is provided below the horizontal clamp device 15 has been described, but the present invention is not limited to this. That is, as shown in FIGS. 3 and 4, the vertical clamp device 17 may be provided above the horizontal clamp device 15. Since other configurations are the same as those in the above-described embodiment, the same reference numerals are given and the description thereof will be omitted. Even with this structure, it is possible to obtain the same effect as that of the above-described embodiment.

Next, a case where a residual material discharging device 49 for discharging the residual material cut is provided based on FIGS. 5 to 7. The residual material dispensing device 49 is a saw blade BS.
Is provided on the front side (the front side of the work W loading direction) for carrying out the short residual material of the cut work W from the band saw machine 1.

In the residual material dispensing device 49, a support member 55 which is rotatable in the vertical direction by a hydraulic cylinder 53 about a fulcrum 51 provided above the base 3 is arranged in the horizontal direction (saw) in FIGS. 5 and 6. It is provided parallel to the blade BS running direction). A pair of groove-shaped members 57, 57 parallel to the support member 55, that is, parallel to the work W loading direction are provided at the tip of the support member 55, and a narrow flat plate shape is provided via a spacer 59. Guide rails 61, 61 are provided on the lower side of the groove-shaped member 57 in the same direction. The guide rail 61 is provided outside the groove-shaped member 57 by a predetermined width (protruding portion 61A).

A movable part 6 is provided below the guide rail 61.
3 is movably suspended along the guide rail 61. That is, the movable portion 63 is the guide rail 6
The vertical guide wheel 65 is provided so as to sandwich the protruding portion 61A of No. 1 from the vertical direction, and the lateral guide wheel 67 is provided so as to sandwich the outer end surface of the guide rail 61.
It is movably suspended from the guide rail 61 by.

Vertical guide wheel 65 and lateral guide wheel 6
On the lower side of the side plate 69 on which the 7 is provided, four columns 71 are provided downward. And this post 71
A pair of arm members 73, 73 are provided at the lower end of the in the left-right direction in the figure. The arm members 73, 73 are largely projected to the left side in FIG. 6 so as not to interfere with the vertical clamp device 17, and are kept horizontal by the rib plate 75. A kicker 77 having a length capable of covering the cutting range is provided at the tip of the arm member 73.

On the other hand, above the movable portion 63 and between the groove type members 57, 57, the hydraulic cylinder 7 for moving the movable portion 63 is provided.
9 is provided. The piston rod 81 of the hydraulic cylinder 79 has its right end in the figure fixed to a base plate 83 provided between the groove-shaped members 57. The right end of the cylinder body 85 in the figure is fixed to a cylinder pressing plate 87, and the cylinder pressing plate 87 is fixed to the movable portion 63 via two side plates 89, 89.

Therefore, by injecting the hydraulic oil into the left side cylinder chamber of the piston, the cylinder body 85 itself moves to the left side in the figure, so that the movable portion 63 moves to the left side, and the kicker 77 draws the remaining material. It can be pushed to the left inside. Further, since the cylinder body 85 itself moves to the right side in the figure by injecting the hydraulic oil into the right side cylinder chamber of the piston, the movable portion 63 moves to the right side.

As described above, since the residual material discharging device 49 is vertically movable behind the horizontal clamp device 15 and the vertical clamp device 17, it is possible to easily and reliably carry out the short mill ends after cutting. . Further, since the residual material discharging device 49 can be raised during the cutting process, it does not interfere with the process.

Since the kicker 77 for discharging the remaining material is provided at the tip of the arm member 73 which is largely extended, it does not interfere with the vertical clamp device 17 and the horizontal clamp device 15.

Further, FIG. 6 shows a case where a plurality of rollers 13 are provided as the work table 11B near the cutting position similarly to the work W loading side. In this case roller 1
The plate 91 is provided between the rollers 3 so as to cover a part of the rollers 13, and the upper surface of the plate 91 is provided so as to be flush with the uppermost point of the rollers 13. There is no gap. Therefore, even if a short residual material is produced after cutting, the residual material dispensing device 49 can smoothly dispense the residual material.

In the above embodiment, the hydraulic cylinders 53 and 79 are used to vertically move the residual material dispensing device 49 and reciprocally move the arm material 73, but the present invention is not limited to this. That is, a motor and a gear device may be used to move up and down and reciprocate.

The work table 11 near the cutting position
Although the case where the roller 13 is provided as B is shown, even if the work table 11A which does not use the roller 13 is used as shown in the previous embodiment, it is possible to obtain exactly the same action and effect. It is also possible to use the work table 11B provided with the roller 13 at the bottom.

[0042]

The cutting machine according to the present invention is constructed as described above, and since the movable vice jaw is provided above the work table near the cutting position, the guide for the movable vice jaw is provided on the upper surface of the work table. There is no need to provide a groove. Therefore, when the work moves on the work table near the cutting position, the work can be smoothly carried in and out without being caught in the guide groove.

Further, since the upper and lower clamp devices press and fix the works from above, the works can be easily cut without moving even when a plurality of works are arranged side by side and cut at one time. At this time, by providing the upper and lower clamp devices below or above the horizontal clamp device,
Since the vertical clamp device and the lateral clamp device can be provided close to the cutting position, the work can be effectively fixed.

Further, since a residual material discharging device having a vertically movable movable discharging kicker for pushing the residual material in the workpiece unloading direction is provided at the rear of the horizontal clamping device and the vertical clamping device, the residual material discharging device can be moved up and down. It is possible to easily carry out short scraps. Moreover, since the residual material dispensing device can be raised during the cutting process, it does not interfere with the process.

[Brief description of drawings]

FIG. 1 is an overall sectional view showing a horizontal clamp device and a vertical clamp device in a cutting machine according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an overall sectional view showing a lateral clamping device and a vertical clamping device in a cutting machine according to another embodiment of the present invention.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a plan view showing a residual material dispensing device.

FIG. 6 is a front view seen from a VI direction in FIG.

FIG. 7 is a side view seen from the direction VII in FIG.

FIG. 8 is a front view showing the entire band saw machine.

[Explanation of symbols]

 1 Band Saw Machine (Cutting Machine) 11A Work Table 15 Horizontal Clamping Device 17 Vertical Clamping Device 29F Fixed Vise Jaw 29M Movable Vise Jaw 49 Residual Material Dispensing Device 77 Kicker W Work

Claims (4)

[Claims] 1. A horizontal table composed of a fixed vise jaw and a movable vise jaw, which is provided with a work table capable of smoothly moving an end material near a cutting position, and clamps a work placed on the work table from a direction orthogonal to a carry-in direction. A cutting machine comprising a clamp device, the movable vice jaw provided above the work table, and a vertical clamp device for pressing and fixing the work from above in the vicinity of the cutting position. 2. The cutting machine according to claim 1, wherein the vertical clamp device is provided below the horizontal clamp device. 3. The cutting machine according to claim 1, wherein the vertical clamp device is provided above the horizontal clamp device. 4. A residual material dispensing device having a dispensing kicker capable of moving back and forth for pushing out the residual material of the cut work in the workpiece unloading direction is provided behind the horizontal clamp device and the vertical clamp device so as to be vertically movable. The cutting machine according to claim 1, wherein: