JP3802192B2 - Cutting method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cutting machine processing method and an apparatus therefor.
[0002]
[Prior art]
Conventionally, an apparatus as shown in FIG. 7 is known as an apparatus for cutting a workpiece with, for example, a horizontal band saw as a cutting machine.
[0003]
That is, a feeding conveyor 203 is provided on the rear side (left side in FIG. 7) of the horizontal band saw 201, and a workpiece supply device 205 is provided adjacent to the feeding conveyor 203. A feeding device 207 that clamps the rear end portion of the workpiece W supplied from the workpiece feeding device 205 onto the feeding conveyor 203 and feeds it to the horizontal band saw 201 is provided to be movable in the front-rear direction. . More specifically, the material feeding device 207 includes a sizing device 209 that performs length measurement and a feeding vice device 211 provided in the sizing device 209. A front vice device 213 is provided on the front side (right side in FIG. 7) of the horizontal band saw 201. A KK line indicates a saw blade cutting line.
[0004]
With the above configuration, as the operation, referring to FIGS. 8 to 10, first, as shown in FIG. 8, the final product removal of one work W is completed. More specifically, the workpiece W is clamped by the feed vice device 211 and the workpiece W is clamped by the front vise device 213 and cut by the saw blade cutting line KK of the horizontal band saw 201. Done. The remainder W _Z is paid out by releasing the clamping of the feeding device 211.
[0005]
Next, as shown in Figure 9, returning the Okuzai device 207 Once paid out the remainder W _Z to the origin. This origin is a position where the next workpiece W does not interfere with the workpiece W when the material is fed onto the material feeding conveyor 203.
[0006]
Then, as shown in FIG. 10, the workpiece W is supplied onto the feeding conveyor 203, and the rear end portion of the workpiece is clamped by the feeding vice device 211 provided in the feeding device 207 to perform the sizing operation. It starts and is cut.
[0007]
Although not shown, a type in which the length measurement is performed by the upper and lower pinch rollers is also employed.
[0008]
[Problems to be solved by the invention]
By the way, in the feeding apparatus 207 in the conventional horizontal band saw 201 described above, there is a problem that the feeding vice apparatus 211 needs to be positioned rearward than the work length, and the useless space is increased.
[0009]
Further, since the material feeding device 207 shortens the remaining material of the workpiece W, the entire length of the device cannot be shortened. Further, the type in which the length measurement is performed with the upper and lower pinch rollers has a problem that the length measurement accuracy is poor.
[0010]
SUMMARY OF THE INVENTION An object of the present invention is to provide a cutting machine processing method and apparatus for reducing dead space, effectively using the factory area, and reducing the idle time in the cutting cycle time.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the cutting processing method according to claim 1 clamps a workpiece placed on a feeding conveyor provided on the rear side of the cutting machine and feeds it to the cutting machine to perform cutting processing. In the cutting method,
(A) A workpiece carrying-in step of placing a workpiece on a material feeding conveyor provided on the rear side of the cutting machine,
(B) The rear end portion of the workpiece placed on the feeding conveyor in the workpiece carrying-in process is clamped by a feeding vise device provided in a sizing device, and the cutting process is repeated with the cutting machine to a desired length. Cutting process,
(C) After cutting the last product in the cutting step, the remaining material dispensing step of dispensing the remaining material,
(D) A feed vise apparatus avoiding step for avoiding the feed vice apparatus upward to a position where there is no hindrance in loading of the workpiece after the remaining material is discharged in the remaining material discharging process;
(E) A sizing device retracting step in which the sizing device is retracted while avoiding the feed vice device in the upward direction in the feed vise device avoiding step, and the sizing device is retracted by an amount by which the product length of the next workpiece is cut. , And are provided.
[0012]
According to a second aspect of the present invention, there is provided a cutting apparatus provided with a feeding conveyor on a rear side of a cutting machine, and a sizing apparatus provided with a feeding vise device for clamping a workpiece placed on the feeding conveyor. The feed vice device is provided so as to be movable on the material conveyor, the feed vise device is provided so as to be movable up and down relative to the sizing device, and the feed vise device is located at a position where there is no hindrance in supplying the workpiece from the material feeder onto the material conveyor. It is characterized by being provided so as to avoid this.
[0013]
Therefore, in the cutting method and the apparatus according to claims 1 and 2, the feed vise device provided in the sizing device is moved from the feed device to the feed conveyor by the avoiding means provided in the sizing device. Avoid the problem as long as there is no problem with the supplied workpiece.
[0014]
For this reason, there is no need to wait for the feed vise device equipped with a sizing device at the position of the last end of the feed conveyor when supplying workpieces, and no matter where the feed vise device is located on the feed conveyor, The workpiece can be supplied onto a material feeding conveyor.
[0015]
Thus, since it is not necessary to return the feed vise device to the rear of the workpiece, the idle time is reduced in the cutting cycle time, and the dead space is reduced, so that the factory area can be used effectively.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0019]
First, for easy understanding, a line configuration in a horizontal band saw machine, for example, as a cutting machine will be schematically described.
[0020]
Referring to FIGS. 3 and 4, for example, a work loading device 3 is provided on the rear side (left side in FIG. 3) of the cutting machine 1 such as a swing type horizontal band saw, and the front side of the cutting machine 1. A cutting material unloading device 5 is provided (on the right side in FIG. 3). The cutting material carry-out device 5 is composed of carry-out conveyors 9 and 11 each having a plurality of rollers 7 although not shown in the drawing, and is provided with a stopper 13 that moves up and down by a cylinder or the like at an appropriate position.
[0021]
The swing-type horizontal band saw machine that is the cutting machine 1 has a known configuration and will not be described in detail. However, a front vice device 15 is provided adjacent to the front side of the cutting machine 1. Yes. The saw blade cutting line is indicated by the line KK.
[0022]
The workpiece carry-in device 3 includes a feeding conveyor 17 that feeds the workpiece W to the cutting machine 1, a feeding device 19 that is movable in the front-rear direction (left-right direction in FIG. 3) on the feeding conveyor 17, And a material feeder 21 for supplying the workpiece W to the material feeding conveyor 17.
[0023]
In the material feeding conveyor 17, a plurality of V rollers 23 are rotatably provided on a frame 25, and feeds the workpiece W transferred onto the V rollers 23 to the cutting machine 1.
[0024]
The feeding device 19 includes a feeding vise device 27 that clamps the rear end of the workpiece W, a pusher device 29 that pushes out the workpiece W, and a sizing device 31. Referring to FIG. 4 in more detail, the sizing device 31 has a plurality of linear guide rails 33 extending in the front-rear direction on the side surface of the gantry 25 constituting the material feeding conveyor 17, and this linear guide rail A material feeder main body 37 is provided at 33 via a linear guide 35.
[0025]
A rack member 39 extends in parallel with the linear guide rail 33 and is provided on the gantry 25. A pinion 41 that meshes with the rack member 39 is mounted on the feeding device body 37, and rotates the pinion 41. A servo motor 43 is provided in the material feeder main body 37. The servo motor 43 includes an encoder, and the total length of the workpiece W is measured by a pulse generated by the servo motor 43.
[0026]
The feeding vice device 27 is provided with a plurality of linear guide rails (not shown) in a vertical state on the side surface of the feeding device body 37, and a base for feeding vise is provided on the linear guide rails via linear guides (not shown). 45 is mounted so as to be movable up and down. As a drive source for moving the feed vise base 45 up and down, a fluid pressure actuated cylinder (not shown) provided in the material feeder main body 37 is used. And on the front side of the feed vise base 45, there is provided a vise main body 47 that is distributed to the left and right sides with respect to the center on which the work W of the V rotor 23 provided on the feed conveyor 17 is placed. The vise main body 47 is opened and closed by the operation of a fluid pressure operated cylinder 49 so that the workpiece W can be clamped and unclamped.
[0027]
Further, the pusher device 29 presses the work W by advancing the pusher main body 53 back and forth by the fluid pressure actuated cylinder 51 and bringing it into contact with the rear end surface of the work W.
[0028]
The material supply device 21 is provided to extend in the front-rear direction adjacent to the material feeding conveyor 17, and a plurality of work supply devices 57 are provided in a work support frame 55.
[0029]
With the above configuration, first, a workpiece W is supplied onto the material supply device 21 with, for example, a crane, and this workpiece W is transferred onto the V roller 23 of the material feeding conveyor 17 one by one by the workpiece supply device 57. When the workpiece W is supplied onto the V roller 23, the V roller is driven and moved until the tip of the workpiece W comes into contact with the stopper 13 provided on the front side of the cutting machine 1.
[0030]
In this state, with the gap between the vice main bodies 47 of the feeding vice device 27 provided in the feeding device 19 being widened, the servo motor 43 provided in the feeding device 19 is moved to rotate the pinion 41 and the rack member 39. As a result, the material feeding device 19 advances. And after the sensor (illustration omitted) attached to the front-end | tip of the feed vice apparatus 27 detects the rear end of the workpiece | work W, the material-feeding apparatus 19 is advanced at low speed.
[0031]
The pusher main body 53 of the pusher device 29 provided in the material feeding device 19 is in the retreat limit, and when the pusher main body 53 comes into contact with the rear end surface of the work W, the servo motor which is the sizing device 31 provided in the material feeding device 19. Since 43 does not generate a pulse, it is determined that the work W has come into contact with the stopper 13 and the pusher main body 53, and the vice main body 47 of the feed vise device 27 is closed to clamp the work W.
[0032]
In this state, the total length of the workpiece W is measured. That is, the stopper 13 is fixed in the material feeding direction, and the servo motor 43 provided in the material feeding device 19 is provided with an encoder, so that its own position is always known.
[0033]
After measuring the entire length of the workpiece W, the stopper 13 is retracted, and the workpiece W is sent to the set dimension and starts cutting. Thereafter, continuous cutting is performed. Note that the pusher main body 53 of the pusher device 29 provided in the material feeding device 19 is always in contact with the rear end surface of the work W, and the material feeding and cutting operations are performed.
[0034]
Further, since the vice main body 47 provided in the feed vise device 27 is movable in the vertical direction by a cylinder (not shown), if the vice main body 47 is avoided upward (the position of the two-dot chain line in FIG. 4). The workpiece W can be supplied onto the material feeding conveyor 17 from the material feeding device 21 regardless of the position of the material feeding device 19 on the material feeding conveyor 17.
[0035]
Next, the avoidance means 59 of the feed vise device 27, which is the main part of the present embodiment, will be described in more detail.
[0036]
Referring to FIGS. 1 and 2, the avoiding means 59, as shown in FIG. 1, extends in the vertical direction to the side surface of the feeding device main body 37 constituting the feeding device 19 and linear guide rails at a plurality of locations. 61, and a plurality of linear guides 63 that are in sliding contact with the linear guide rail 61 are provided on the feed vise base 45. A piston rod of a fluid pressure actuated cylinder 67, which is an avoidance driving means provided on the side of the feeding device main body 37, is connected to a bracket 65 provided on the feed vise base 45.
[0037]
With the above-described configuration, when the cylinder 67 is operated, the feed vise base 45 can move up and down on the linear guide rail 61 via the linear guide 63. That is, the feed vise device 27 provided on the feed vise base 45 is raised from the position shown by the solid line in FIG. 2 to the position shown by the two-dot chain line, and is supplied from the feed device 21 onto the feed conveyor 17. Work W is not disturbed.
[0038]
A base plate 69 is provided integrally with the feed vise base 45, and a pinion 71 is rotatably mounted on the base plate 69, and rack members 73 are arranged in the left and right directions in the vertical direction of the pinion 71 (in FIG. It is meshed so as to be movable in the left-right direction in FIG. The vice main body 47 is integrally provided on the rack member 73, and the fluid pressure operated cylinder 49 is integrally provided on the vice main body 47 on one side, and the bracket 77 is connected to the piston rod 75 of the cylinder 49. The vice main body 47 on the other side is coupled via the. Reference numeral 79 denotes a rail member, reference numeral 81 denotes a sliding contact member provided on each vice main body 47 that slides on the rail member 79, and reference numeral 83 denotes a sensor that detects a rear end portion of the workpiece W. is there.
[0039]
With the above configuration, when the cylinder 49 is operated and the piston rod 75 is protruded, each vice main body 47 is opened via the bracket 77. Further, when the piston rod 75 is contracted, each vice body 47 is closed and the workpiece W can be clamped.
[0040]
Next, although it is not directly related to the avoidance means 59 provided in the above-described material feeding device 19, a dispensing device 85 for delivering the remaining material after cutting the workpiece W is provided on the cutting machine 1 side of the material feeding conveyor 17. Yes.
[0041]
That is, as shown in FIG. 2, in the dispensing device 85, a bracket 87 is provided on the lower surface of the gantry 25 of the feeding conveyor 17, and one end of a fluid pressure operated cylinder 89 is connected to the bracket 87. One end of an L-shaped arm 97 is rotatably connected to a fork end 95 engaged with a piston rod 93 provided integrally with a piston 91 built in the cylinder 89. The L-shaped arm 97 is rotatably mounted on a bearing 99 provided on the gantry 25 via a shaft 101, and a V-shaped portion 103 is formed on the other upper surface of the L-shaped arm 97.
[0042]
With the above configuration, when the piston rod 93 of the cylinder 89 is contracted as shown by the solid line in FIG. 2, the V-shaped portion 103 provided on the L-shaped arm 97 is in a state of supporting the workpiece W. When the piston rod 93 of the cylinder 89 is protruded and the L-shaped arm 97 is moved to the position indicated by the two-dot chain line, the V-shaped portion 103 of the L-shaped arm 97 is separated from the supported workpiece W. That is, the remaining material can be paid out.
[0043]
With the configuration as described above, the last product of one workpiece W is cut as the operation thereof with reference to FIGS. 5 and 6. That is, as shown in FIG. 5, the workpiece W clamped by the front vice device 15 is cut by the saw blade cutting line KK of the cutting machine 1, and the remaining material W _Z is provided in the feeding device 19. It is clamped by the vice main body 47 of the feeding vise device 27.
[0044]
Unclamps vice body 47 from this state, dispensing with dispenser 85 and the pusher device 29 remainder W _Z, while increasing the actuation of the cylinder 67 is avoided means 59 feed vise assembly 27, Okuzai device Move 19 back. As shown in FIG. 6, the backward distance is set to a constant amount determined by a parameter so that the next product length can be cut. Immediately after the feeding device 19 starts to move backward, the next workpiece W is supplied from the feeding device 21 to the feeding conveyor 19.
[0045]
Then, the sizing operation is started, and after the start of cutting, the feeding device 27 provided in the feeding device 19 moves the feeding device 19 backward while grasping the rear end of the work W. Then, immediately after the cutting is completed, the next length measuring operation is performed.
[0046]
As described above, the feeding device 27 provided in the feeding device 19 is avoided by the avoiding means 59 in the upward direction, so that the workpiece W is supplied at any position on the feeding conveyor 17. Can do. For this reason, the dead space is reduced, and the idle time is reduced in the cutting cycle time because the feeding device 19 does not need to return to the end of the workpiece W.
[0047]
The present invention is not limited to the embodiment of the invention described above, and can be implemented in other modes by making appropriate modifications.
[0048]
【The invention's effect】
As can be understood from the description of the embodiment as described above, according to the first and second aspects of the present invention, the feed vise device provided in the sizing device is fed by the avoiding means provided in the sizing device. Can be avoided within a range in which there is no problem with the workpiece supplied from the feeding device onto the feeding conveyor.
[0049]
For this reason, it is not necessary to make the feed vise device provided in the sizing device stand by at the position of the rearmost end of the feed conveyor when supplying the workpiece, and the workpiece from the feed device regardless of the feed vise device at any position on the feed conveyor. Can be fed onto a material conveyor.
[0050]
Thus, since it is not necessary to return the feed vise device to the rear of the workpiece, the idle time is reduced in the cutting cycle time, and the dead space is reduced, so that the factory area can be used effectively.
[Brief description of the drawings]
FIG. 1 is an enlarged plan view showing a main part of the present invention and taken along an arrow I in FIG.
2 is an enlarged front view taken along line II-II in FIG. 3;
FIG. 3 is an explanatory plan view of a cutting machine and a work loading / unloading device according to an embodiment of the present invention.
4 is an enlarged cross-sectional explanatory view taken along line IV-IV in FIG. 3;
FIG. 5 is an operation explanatory diagram.
FIG. 6 is an operation explanatory diagram.
FIG. 7 is an explanatory plan view showing a positional relationship between a feeding vise device and a cutting machine, showing a conventional example.
FIG. 8 is an operation explanatory diagram of a conventional example.
FIG. 9 is an operation explanatory diagram of a conventional example.
FIG. 10 is an operation explanatory diagram of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cutting machine 15 Front vice apparatus 17 Feeding conveyor 21 Feeding apparatus 27 Feeding vice apparatus 31 Sizing apparatus 59 Avoidance means 69 Cylinder (avoidance drive means)
85 Dispensing device W Workpiece

Claims (2)

In the cutting processing method of clamping the work placed on the feeding conveyor provided on the rear side of the cutting machine and feeding to the cutting machine to perform cutting processing,
(A) A workpiece carrying-in step of placing a workpiece on a material feeding conveyor provided on the rear side of the cutting machine,
(B) The rear end portion of the workpiece placed on the feeding conveyor in the workpiece carrying-in process is clamped by a feeding vise device provided in a sizing device, and the cutting process is repeated with the cutting machine to a desired length. Cutting process,
(C) After cutting the last product in the cutting step, the remaining material dispensing step of dispensing the remaining material,
(D) A feed vise apparatus avoiding step for avoiding the feed vice apparatus upward to a position where there is no hindrance in loading of the workpiece after the remaining material is discharged in the remaining material discharging process;
(E) A sizing device retracting step in which the sizing device is retracted while avoiding the feed vice device in the upward direction in the feed vise device avoiding step, and the sizing device is retracted by an amount by which the product length of the next workpiece is cut. cutting processing method characterized by comprising comprises a city. A sizing device provided with a feeding vice device for providing a feeding conveyor on the rear side of the cutting machine and clamping a workpiece placed on the feeding conveyor is provided movably on the feeding conveyor, and the feeding vice device The cutting device is provided so as to be movable up and down with respect to the sizing device, and the feed vice device is provided so as to be capable of avoiding a position where there is no problem in supplying the workpiece from the feed device onto the feed conveyor. Processing equipment .

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