JP2004106444A - Processing device for positioning of precut workpiece - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for positioning and processing a precut workpiece to accurately cut the precut workpiece into a given length and to process it at an exact position on the precut workpiece. <P>SOLUTION: On the device, a moving plate 6 transferred along a rail 5 is mounted, the moving plate 6 is transferred by a servo-motor 7, a rail 14 is mounted as parallel to a transfer conveyor 2 on the the moving plate 6 and a moving table 15 is mounted as capable of moving on the rail. The moving table 15 is positioned and transferred by the servo-motor 16 and a sawing device 10 is constructed by a saw 9 revolved by the motor 8 installed on the moving table 15, and further a laser unit 17 is mounted at the end of a feed conveyor 3. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pre-cut processing material positioning apparatus for accurately cutting a pre-cut processing material to a set length and processing the pre-cut processing material at an accurate position.
[0002]
[Prior art]
As shown in FIG. 4, as a pre-cut material processing apparatus of this type, a feed conveyor 3 for conveying the pre-cut material 1 is connected to a carry-in conveyor 2 for carrying the pre-cut material 1, and the carry-in conveyor 2 and the feed conveyor 2 are connected to each other. A servo motor 4 for driving the conveyor 3 is mounted on the carry-in conveyor 2, a rail 5 orthogonal to the carry-in conveyor is mounted near the carry-in conveyor 2, and a movable table 6 moved along the rail 5 is mounted. Further, the moving table 6 is moved by a servomotor 7, and a saw device 10 having a saw 9 rotated by a motor 8 is mounted on the moving table 6. As shown in FIG. 5, flat mortise 1b, stud notch 1c, mortise mortise 1d, joint ant 1e, fire carving 1f, pillar pallet 1g, barrel wood chip 1h, joist carving 1i, etc. Processing devices 11 a, 11 b, 11 c for processing are mounted, and a rail 12 is mounted on the side of the feed conveyor 3. A stopper device 13 is mounted so as to move along the rail 12. Is mounted with a stopper 13a mounted on the upper part of the feed conveyor 3 and a servomotor 14 for moving the stopper device 13. The stopper 13a does not hinder the feeding of the precut material 1 after the rear part of the precut material 1 is cut. As described above.
[0003]
[Problems to be solved by the invention]
However, in this precut material processing apparatus, the precut material 1 is sent from the carry-in conveyor 2 to the feed conveyor 3 and is brought into contact with the stopper 13a of the stopper device 13, but the stopper device 13 is moved. When the rail 12 is configured to be long and the stopper device 13 is moved by the servo motor 14, an error occurs due to a play between the rack of the rail 12 and the ratchet provided on the stopper device 13, so that accurate positioning cannot be performed. There is a problem, and a piece of wood may be sandwiched between the tip 1a of the workpiece 1 and the stopper 13a of the stopper device 13, or the tip 1a of the pre-cut workpiece 1 may be dented when it collides with the stopper 12a. The actual length of the pre-cut material may not be as specified, or the flat mortise 1b When processing such as 1c, mortise mortise 1d, joint ant 1e, fire carving 1f, pillar stake 1g, rafter chipping 1h, joist carving 1i, etc., it is impossible to machine at the correct machining position when machining with the machining apparatus 11a, 11b, 11c. However, such a small error has been overlooked in the past.
[0004]
[Means for Solving the Problems]
The present invention provides a carry-in conveyor and a feed conveyor that convey a work material, and a stopper that moves along a rail mounted on a side portion of the feed conveyor and is sequentially positioned at each processing position of the work material. A positioning device, a measuring device installed on the feed conveyor, and a processing device arranged on a side portion of the carry-in conveyor, and a distance between the measuring device and a tip of the processing material. In the case where there is an error between the measurement value measured by the measuring device and the set value, means for moving the processing device by the error is provided in the processing device, and further, the measuring device is a laser. The measuring device is an ultrasonic measuring device, the measuring device is a mechanical measuring device, the processing device is a saw device, and the processing device is a flat mortise, a stud notch, a mortise, Ali, angle brace carved pillars remembering a device for performing processing such as rafters outs or joists carving.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present invention, after the processing position of the processing apparatus is set in advance to the position of the stopper, the precut processing material is carried into the feed conveyor, and when the precut processing material contacts the stopper, the actual processing position of the precut processing material is determined. In order to do so, a measuring device such as a laser device, an ultrasonic measuring device or a mechanical measuring device is attached to the end of the feed conveyor, and it is checked whether the distance between the measuring device and the stopper is the set distance. Measure and, if the processing position is deviated from the set measurement value, move the processing device by the deviated value and process the precut processing material so that the processing position of the precut processing material matches the determined position .
[0006]
【Example】
FIG. 1 is a plan view of an apparatus for cutting a pre-cut work material according to an embodiment of the present invention, 1 is a work material, 2 is a carry-in conveyor, 3 is a feed conveyor, 4 is a servomotor, 11a, 11b, 11c is a work apparatus, 12 Is a rail, 13 is a stopper device, 13a is a stopper, and 14 is a servomotor. These components are the same as those of the above-described conventional example, and therefore, description thereof will be omitted. The carriage 6 is moved by a servomotor 7, a rail 15 is mounted on the carriage 6 in parallel with the carry-in conveyor 2, and a carriage 16 is moved on the rail 15. The moving table 16 is positioned and moved by a servomotor 17, and a saw 9 which is rotated by a motor 8 is installed on the moving table 16 to constitute a saw device 10, and a feed controller is provided. Laser apparatus 18 is mounted on the end of A 3.
[0007]
FIG. 3 is a block diagram of a control device for controlling the cutting device of the embodiment of FIG. 1. A memory 20 for storing set values and the like is connected to a control device 19 composed of a CPU. An input device 21 for inputting values and the like and a laser device 18 are connected, and an output side of the control device 19 is connected to a servo motor 14 of the stopper device 13 and a sensor 22 mounted on the stopper 13a. And the motor 8 for rotating the saw 9 are connected.
[0008]
The operation of the present embodiment thus configured will be described with reference to the flowchart of FIG. 3. First, the saw 9 of the saw device 10 is moved by the servo motor 17 to a position determined in advance by the set value read from the memory 20. When the stopper 13a is moved to a position of a preset length of the precut material 1 by driving the servo motor 14 of the stopper device 13, the precut material 1 is carried into the carry-in conveyor 2. Then, it is sent to the feed conveyor 3 by the servomotor 4 (step 1). Next, it is determined by the control device 19 whether the tip 1a of the pre-cut workpiece 1 contacts the stopper 13a (step 2), and the stopper 13a When the tip 1a of the pre-cut workpiece 1 comes into contact with the pre-cut workpiece 1, the pre-cut workpiece 1 is stopped by the sensor 21 attached to the stopper 13a. The controller 19 determines that the laser beam has come into contact with the laser beam 3a, and the laser device 18 is operated to emit the laser beam 18a. The distance between the laser device 18 and the tip 1a of the pre-cut workpiece 1 is determined based on the reciprocation time of the laser beam 18a. The control device 19 determines whether or not the measured distance is a predetermined distance (step 4). If there is no error in the measured distance, the saw device 10 is moved without moving. When the movable base 6 is moved by driving the servo motor 7 (step 6) and the precut workpiece 1 is cut by the saw 9, the distance between the stopper 13a and the saw 9 is equal to the set length of the precut workpiece 1. Thus, the length of the precut material 1 can be made to exactly match the set value.
[0009]
If there is an error in the distance measured by the laser device 18 in step 4, the control device 19 drives the servomotor 17 of the saw device 10 in accordance with the error, and moves the moving table 16 to the carry-in conveyor 2. By moving in parallel by the measured error (step 5), the saw 9 is moved to a position where the work material 1 is cut, where the motor 8 is driven to rotate the saw 9, The pre-cut workpiece 1 is cut by driving the servo motor 7 to move the movable table 6 in the direction orthogonal to the carry-in conveyor 2 (step 6), and it is controlled whether or not the next pre-cut workpiece 1 is carried in. It is determined by the apparatus 19 (step 7), and if the next precut material 1 is carried in, the process returns to step 1 and ends if the next precut material 1 is not carried in.
[0010]
As described above, the present invention measures the distance between the tip 1a of the precut material 1 and the laser device 18 with the laser device 18 to obtain the tip 1a and the stopper 13a of the precut material 1 abutted on the stopper 13a. In the case where a piece of wood is sandwiched in between, or when the tip 1a is partially concave or when there is a mechanical error between the stopper device 13 and the rail 12, the precut material 1 is removed in such a state. When cut, the precut material 1 becomes shorter or longer than a prescribed value, and the precut material 1 often does not become the prescribed length. Therefore, the tip of the precut material 1 contacts the stopper 13a. When the tip 1a of the pre-cut workpiece 1 is detected by the sensor 22 of the stopper 13a at this time, the laser Irradiating the end 1a, by precisely measuring the distance between the tip 1a of the laser device 18 and the pre-cut workpiece 1, it is possible to match the exact setpoint cut length of pre-cut workpiece 1.
[0011]
In addition, flat mortise 1b, stud notch 1c, mortise 1d, joint ant 1e, fire pit 1f, fire stamping 1f, pillar setting 1g, and bark on the side surface of the precut material 1 by the processing devices 11a, 11b and 11c as shown in FIG. Even in the case of performing processing such as the notch 1h or the joist carving 1i, the stopper device 13 is moved to the position set by the servomotor 14, and when the tip 1a of the precut material 1 comes into contact with the stopper 13a, the laser device 18 is used. Irradiates the laser 18a from the laser device 18 and measures the distance between the laser device 18 and the front end 1a of the precut material 1 so as to eliminate the error between the processing position of the precut material 1 and the respective positions of the processing devices 11a, 11b and 11c. By moving the processing devices 11a, 11b, and 11c respectively to perform processing, the processing can be performed at an accurate processing position of the precut workpiece 1.
[0012]
In the above-described embodiment, the laser device 18 has been described as a measuring device. However, the processing devices 11a, 11b, and 11c can be similarly used even if another measuring device, for example, an ultrasonic measuring device or a mechanical measuring device is used. Can be accurately aligned to a predetermined processing position of the pre-cut workpiece 1.
[0013]
【The invention's effect】
As described above, in the apparatus for positioning a precut workpiece according to the present invention, after setting the processing position of the processing apparatus and the position of the stopper in advance, the precut workpiece is carried in by the feed conveyor, and the precut workpiece hits the stopper. At the time of contact, a measuring device such as a laser device is attached to the feed conveyor to determine the actual processing position of the work material, and it is checked whether the distance between the measuring device and the stopper is the set distance. If the measured value deviates from the set measurement value, the processing device is moved by the deviated value, and the pre-cut is processed by the processing material device so that the processing position of the pre-cut processing material matches the determined position. There is an advantage that the processing can be performed at an accurate processing position of the processing material.
[Brief description of the drawings]
FIG. 1 is a plan view of an apparatus for cutting a precut material according to an embodiment of the present invention.
FIG. 2 is a block diagram of a control device for controlling the operation of the pre-cut workpiece shown in FIG.
FIG. 3 is a flowchart illustrating an operation of the control device of FIG. 2;
FIG. 4 is a plan view of a conventional apparatus for cutting a precut material.
FIG. 5 is a perspective view of a processed precut material.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 Pre-cut material 2 Carry-in conveyor 3 Feed conveyor 4 Servo motor 5 Rail 6 Moving table 7 Servo motor 8 Motor 9 Saw 10 Saw device 11a, 11b, 11c Processing device 12 Rail 13 Stopper device 13a Stopper 14 Servo motor 15 Rail 16 Moving table 17 Servo motor 18 Laser device 19 Controller 20 Memory 21 Sensor

Claims (7)

A carry-in conveyor and a feed conveyor that convey a work material, a positioning device that moves along a rail mounted on a side portion of the feed conveyor, and is provided with a stopper that is sequentially positioned at each processing position of the work material; An apparatus for positioning a precut material, comprising: a measuring device installed on the feed conveyor; and a processing device arranged on a side of the carry-in conveyor. In the distance between the measuring device and the tip of the processing material, if there is an error between the measurement value measured by the measuring device and the set value, means for moving the processing device by the error to the processing device. 2. The apparatus for positioning a pre-cut material according to claim 1, wherein: The apparatus according to claim 1, wherein the measuring device is a laser. The positioning device according to claim 1, wherein the measuring device is an ultrasonic measuring device. 3. The apparatus according to claim 1, wherein the measuring device is a mechanical measuring device. The apparatus according to claim 1, wherein the processing device is a saw device. The said processing apparatus is an apparatus which performs processes, such as a flat mortise, a stud notch, a mortise, a joint ant, a fired carving, a pillar, a bark chipping or a joist carving. Pre-cut material positioning processing equipment.

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