WO2017195342A1

WO2017195342A1 - Processing device

Info

Publication number: WO2017195342A1
Application number: PCT/JP2016/064239
Authority: WO
Inventors: 光畠澤
Original assignee: 三菱電機株式会社
Priority date: 2016-05-13
Filing date: 2016-05-13
Publication date: 2017-11-16
Also published as: JPWO2017195342A1; TWI607827B; TW201739571A; JP6354931B2

Abstract

The processing device pertaining to the present invention is provided with a support rod for supporting a work piece, a base on which the support rod is installed and on which the work piece is mounted via the support rod, a processing means for processing the work piece mounted on the base, a movement means for moving the relative positions of the processing means and the base, a calculation unit for calculating installation position information indicating the installation position of the support rod installed on the base on the basis of processing shape information of the work piece, and a support rod installation means for installing the support rod in the installation position on the base corresponding to the installation position information on the basis of the installation position information calculated by the calculation unit, and the work piece is therefore supported at a support point corresponding to the shape of the work piece. Bending of the work piece is therefore suppressed.

Description

Processing equipment

The present invention is a processing apparatus for processing a workpiece by processing means such as laser and water pressure.

There is a laser processing apparatus that cuts a workpiece by irradiating a workpiece such as a metal plate, which is an object to be processed, with a laser beam and melting a portion irradiated with the laser beam. In such a processing apparatus, in order to avoid the melted workpiece melted at the time of laser irradiation becoming dross and adhering to the back surface of the cut workpiece, the dross is blown off by injecting high pressure gas to the laser irradiation position. I am doing so. At this time, since dross is blown off in the gas injection direction from the location where the workpiece is cut, it is desirable that the space below the workpiece is as open as possible. For this reason, there are some which support the work with a plurality of sword pins (for example, Patent Document 1).

JP 7-299682 A

In the laser processing apparatus as described above, the sword pins for supporting the work are arranged at fixed positions aligned in the vertical and horizontal directions. For this reason, depending on the shape of the work, there is a problem that a part of the work straddling between the sword pins is bent without being sufficiently supported.

This invention was made in order to solve the said subject, and it aims at obtaining the processing apparatus which can suppress the bending of a workpiece | work.

A processing apparatus according to the present invention includes a support rod for supporting a workpiece, a base on which the support rod is installed, and a workpiece placed on the support rod, a processing means for processing the workpiece placed on the base, a processing means, and a base Calculated by the calculating unit, a moving unit that moves the relative position of the workpiece, a calculation unit that calculates installation position information indicating an installation position of the support bar installed on the base based on the machining shape information of the workpiece, and And a support bar installation means for installing the support bar at an installation position on the base corresponding to the installation position information based on the installation position information.

According to the present invention, since the support bar is installed at the installation position on the base corresponding to the installation position information calculated based on the machining shape information of the workpiece, the workpiece is supported at the support point corresponding to the shape of the workpiece. Since it is supported, the bending of the workpiece is suppressed.

FIG. 3 is an explanatory diagram of the processing machine according to the first embodiment. It is the conceptual diagram which showed the example of the machining shape information input into the processing apparatus which concerns on Embodiment 1. FIG. It is explanatory drawing of the rail of the processing apparatus which concerns on Embodiment 1. FIG. FIG. 3 is a conceptual diagram of y-axis drive means of the processing machine according to Embodiment 1. 3 is a flowchart showing a processing operation of the processing machine according to the first embodiment. 4 is a flowchart illustrating in detail an operation of calculating installation position information of a calculation unit according to the first embodiment. 5 is a flowchart showing in detail a support bar installation operation by a support bar installation unit according to the first embodiment.

Embodiment 1 FIG.
FIG. 1 is an explanatory diagram of the processing machine according to the first embodiment. The processing machine includes a plurality of support rods 2 that support the workpiece 1, a support 3 on which the support rod 2 is installed, a workpiece 3 on which the workpiece 1 is placed via the support rod 2, and a workpiece that is placed on the substrate 3 via the support rod 2. The processing means 4 for processing 1, the moving means 5 for moving the relative position of the processing means 4 and the base 3, and the installation position of the support bar 2 installed on the base 3 based on the processing shape information of the workpiece 1 And a support bar installation means 7 for installing the support bar 2 at the installation position of the base 3 based on the installation position information calculated by the calculation unit 6. It is configured. The support bar installation means 7 has push-out means 7a, rails 7b, x-axis drive means 7c, and y-axis drive means 7d.

Work 1 is a processing object of a processing machine, for example, a metal plate. The support bar 2 supports the workpiece 1 that is the object to be processed. The support bar 2 is made of a square columnar metal with sharp tips, and the work is supported on the tips of the support bars 2 by placing the work on the tips of the plurality of support bars 2.

The base 3 is fixed to a place where the processing apparatus is installed via a leg (not shown), and supports the work 1 via the support bar 2. As shown in FIG. 1, the base 3 has a U-shaped frame. The frame is formed of a three-sided hollow quadrangular prism, and two opposing sides facing each other are open. . The y-axis driving means 7d is accommodated in each of the two opposite sides.
The support bar 2 is appropriately disposed on the base 3 from the state where it is accommodated in the extrusion means 7a by the support bar installation means 7 including the extrusion means 7a, the rail 7b, the x-axis drive means 7c, and the y-axis drive means 7d. Is done.

The processing means 4 processes the workpiece 1 placed on the base 3, and in this embodiment is a laser processing head that emits laser light.
The moving means 5 moves the relative position between the processing means 4 and the substrate 3. In this embodiment, the position of the workpiece 1 is fixed, and the processing means 4 moves by the moving means 5. The relative position of the means 4 and the substrate 3 changes. In FIG. 1, when the depth direction of the base body 3 is the x axis and the lateral direction is the y axis, the moving means 5 moves the processing means 4 in the x axis direction by a moving mechanism inside the frame holding the processing means 4. And the frame itself holding the processing means 4 of the moving means 5 is moved in the y-axis direction by a moving mechanism (not shown) to move the relative position of the processing means 4 with respect to the base 3. ing. The workpiece 1 can be cut into a desired shape by moving the machining means 4 according to the shape to be machined.

The calculation unit 6 calculates installation position information indicating the installation position of the support bar 2 installed on the base 3 based on the machining shape information of the workpiece 1.
The machining shape information indicates the shape of the workpiece to be machined. In this embodiment, the machining shape information is the shape of the part that the machining means 4 wants to cut out from the workpiece 1 that is the workpiece. FIG. 2 is a conceptual diagram showing an example of machining shape information input to the machining apparatus. When the workpiece 1 is a metal on a flat plate and the shape of a part to be cut out from the workpiece 1 is a star shape or a trapezoidal shape as shown on the left side of FIG. The vertex group data indicated by the two-dimensional position coordinates (x, y) is machining shape information. Specifically, a set of black spots of the graphic shown on the left side of FIG. 2 is a vertex group. The workpiece 1 is machined by the moving means 5 sequentially moving the machining means 4 so that the laser irradiation destination of the machining means 4 moves from the vertex with the early machining order in the vertex group to the vertex with the next machining order. .
The machining shape information is not limited to the vertex group data as described above, but may be information regarding the shape to be machined. For example, a function indicating the shape may be used as the machining shape information.
When such machining shape information is input to the calculation unit 6, the calculation unit 6 calculates installation position information of the support bar 2 based on the machining shape information. Specifically, each vertex is moved in the center direction around the center coordinate 12 obtained by averaging the coordinates of each vertex included in the vertex group data of the machining shape information. The degree of movement is determined by the material and thickness of the object to be processed, and the processing accuracy, and is set by the user, for example. As a specific example, when the installation pitch of the support bars 2 is 5 cm, the coordinates of the vertex group data are moved 5 cm to the center, and the position after the movement is set as the internal support position 13. In the example of FIG. 2, the black spot inside the star and trapezoid shown on the right side is the internal support position 13.
After the internal support position 13 is calculated in this way, when the distance between the internal support position 13 and the internal support position 13 in the next processing order is 5 cm or more, the star shape shown on the right side of FIG. The intermediate support position 14 is calculated like a white point inside the trapezoid. The internal support position 13 and the intermediate support position 14 calculated by the calculation unit 6 are output to the support bar installation means 7 as installation position information.

The support bar installation means 7 installs the support bar 2 at the installation position on the base 3 corresponding to the installation position information based on the installation position information calculated by the calculation unit 6. The support bar installation means 7 is composed of push means 7a, rails 7b, x-axis drive means 7c and y-axis drive means 7d.
The push-out means 7a accommodates a plurality of support bars 2 and pushes out the support bars 2 to be placed on the rails 7b based on the installation position information calculated by the calculation unit 6.
The rail 7b sequentially holds the support rods 2 pushed out by the pushing means 7a and conveys them in the x direction. FIG. 3 is an explanatory diagram of the rail 7b of the processing apparatus according to the first embodiment. The rail 7b includes a rail housing 71b on which the support rod 2 is placed, a belt 72b that holds and supports the support rod 2 placed on the rail housing 71b with a protrusion, and a rotating portion 73b that rotates the belt 72b.
A plurality of rails 7b are arranged such that the long axis is in the x-axis direction of the base. The belt 72b has a protrusion as shown in FIG. 3, and the support rod 2 is sandwiched and held by the protrusion. The rotating part 73b is in contact with the belt 72b, and the belt 72b rotates when the rotating part 73b rotates. The rotating portion 73b is rotated by being given a rotational force by the x-axis driving means 7c shown in FIG.
When the support rod 2 is pushed out and placed on the rail housing 71b, the rail 7b carries the support rod 2 by sandwiching the support rod 2 from both sides by rotating the rotating portion 73b and moving the belt 72b. Since the support bar 2 is pushed out at an appropriate timing by the push-out means 7a operating in conjunction with the x-axis drive means 7c based on the installation position information calculated by the calculation unit 6, and is transported to the belt 72b. It will be arrange | positioned in the rail 7b at the space | interval according to installation position information.
When the support rod 2 has been installed at a predetermined position over the entire x-axis direction of one rail 7b, the x-axis drive means 7c pushes the rail 7b in the direction of the y-axis drive means 7d.
The y-axis drive means 7d moves the rail 7b on which the support rod 2 is placed to the installation position y on the base 3 corresponding to the installation position information. FIG. 4 is a conceptual diagram of the y-axis driving unit 7d of the processing machine according to the first embodiment. The y-axis driving means 7d is housed in two opposing sides of the frame of the base 3, and the two sides are exposed on the opposing surfaces. The y-axis drive means 7d includes a belt 71d that conveys the rail 7b, and a motor 72d that contacts the belt 71d and rotates the belt 71d.
When the rail 7b on which the support rod 2 is placed is pushed out by the x-axis drive unit 7c at a timing based on the installation position information, the y-axis drive unit 7d sandwiches the end of the long axis of the rail 7b by the two belts 71d, and the motor 72d Moves and the belt 71d rotates to move the rail 7b. The plurality of rails 7b are finally held and moved by the y-axis driving means 7d, and the support bar 2 is arranged at the installation position based on the installation position information. FIG. 4 shows a state in which the support bar 2 is installed at the installation position based on the installation position information calculated by the calculation unit 6 when it is desired to machine the workpiece 1 into a star shape. For simplicity, the calculated installation position information shows only the internal support position where the vertex group data is moved once to the center.

Next, the operation of the processing machine according to Embodiment 1 will be described.
FIG. 5 is a flowchart showing the processing operation of the processing machine according to the first embodiment.

In step S001, machining shape information of the workpiece 1 is input to the calculation unit 6. When the machining shape information is input, in step S002, the calculation unit 6 calculates the installation position information of the support bar 2 installed on the base 3 based on the machining shape information of the workpiece 1.
Next, in step S003, based on the installation position information calculated by the calculation unit 6, the support bar installation means 7 installs the support bar 2 at the installation position on the base 3 corresponding to the installation position information.
When step S003 is completed and the work 1 is placed on the support bar 2 installed at the installation position on the base 3 by the user, the processing unit 4 corresponds to the machining shape information by the moving unit 5 in step S004. The workpiece 1 placed on the substrate 3 is cut by the processing means 4 emitting laser light while moving.

FIG. 6 is a flowchart showing in detail the operation of calculating the installation position information of the calculation unit 6 in step S002 of FIG. In step S101, the calculation unit 6 calculates center coordinates 12 obtained by averaging the coordinates of the vertices from the above-described vertex group data that is the input machining shape information. After calculating the center coordinate 12, the calculation unit 6 proceeds to step S102.
Next, in step S102, the calculation unit 6 calculates the internal support position 13. Specifically, the coordinates of each vertex of the vertex group data are moved by an amount corresponding to 5 cm in the direction of the central coordinate 12 calculated in step S101, and the position after the movement is calculated as the internal support position 13. .
Then, the process proceeds to step S103, and when the 5 cm vertex group data is further moved from the internal support position 13 calculated in step S102 to the central coordinate 12, the internal support position is determined by determining whether or not the central coordinate 12 is reached. It is determined whether the calculation of is completed. If the central coordinates 12 are not reached for all the vertices, it is determined that the calculation of the internal support position has not been completed, and the process returns to step S102 to calculate the internal support position 13 again. On the other hand, for all the vertices, if the 5 cm vertex group data is further moved from the internal support position 13 calculated in step S102 to the central coordinate 12, if the central coordinate 12 is reached, the calculation of the internal support position 13 is completed. The process proceeds to S104.
In step S104, a place where the distance between the internal support position 13 and the internal support position 13 in the next processing order is 5 cm or more is detected, and if there is no place where the distance is 5 cm or more, the intermediate support position 14 is calculated. The calculation of the installation position information is completed. On the other hand, if a location where the distance between the internal support position 13 and another internal support position 13 is 5 cm or more is detected, it is determined that the intermediate support position needs to be calculated, and the process proceeds to step S105.
In step S105, the middle of the portion where the distance between the internal support position 13 and the internal support position 13 in the next processing order is 5 cm or more is calculated as the intermediate support position 14, and the process returns to step S104. Steps S104 and S105 are repeated until it is determined in step S104 that a position where the distance between the internal support position 13 and another internal support position 13 is 5 cm or more is not detected.
When the calculation of the installation position information is completed, the calculated internal support position 13 and intermediate support position 14 are output to the support bar installation means 7 as installation position information.
The above is the operation in which the calculation unit 6 calculates the installation position information.

FIG. 7 is a flowchart showing in detail the support bar installation operation by the support bar installation means 7 in step S003 of FIG. First, in step S201, the rail 7b is installed at a position where the x-axis driving means 7c pushes out the support bar 2 accommodated in the pushing means 7a.
Next, in step S202, the x-axis drive means 7c rotates the rotating portion 73b of the rail 7b, and the pushing means 7a places the support bar 2 on the rail 7b at a timing based on the installation position information. Extrude. As a result, the belt 72b of the rail 7b sandwiches the support rod 2 from both sides while rotating and conveys it in the x-axis direction. The support bar 2 is pushed out at an appropriate timing by the push-out means 7a in conjunction with the operation in which the x-axis drive means 7c rotates the rotating portion 73b of the rail 7b and is transported by the belt 72b. Is moved to the arrangement position x in the rail 7b at an interval according to.
In step S203, it is determined whether or not the placement of the support bar 2 on the rail 7b is completed. If not completed, the process returns to step S202. If completed, the process proceeds to step S204.
In step S204, the x-axis drive unit 7c pushes the rail 7b to the y-axis drive unit 7d at a timing based on the installation position information. At the same time as the rail 7b is pushed out, the motor 72d of the y-axis drive means 7d is driven and the belt 71d rotates, so that the rail 7b on which the support rod 2 is mounted moves in the y direction. The amount of movement in the y direction at this time can be determined according to the pitch between the projections of the rail 7b and the installation position information. For example, the rail 7b is arranged between a certain projection, and then between adjacent projections. When the rail 7b is arranged, the movement amount is one pitch between the protrusions. If the rail 7b is arranged between the separated protrusions, the movement amount to the position between the protrusions where the rail 7b is arranged next is used. That's fine.
In step S205, it is confirmed whether or not the arrangement of the rails 7b at all installation positions, that is, the arrangement of the support rods 2, is completed. If not completed, the process returns to step S201, and steps S201 to S205 are repeated. When the arrangement of the support bar 2 is completed, the operation of the support bar installation by the support bar installation means 7 is terminated.
As described above, the installation position information based on the machining shape information is obtained, and the support rod is installed at the installation position corresponding to the installation position information, so that the periphery of the part to be cut out of the workpiece 1 is reliably supported and cut out. Difficult to bend during or after being cut out. In addition, what is necessary is just to perform arrangement | positioning of the support bar in positions other than the periphery of the part to cut out suitably as needed.

As described above, the processing apparatus according to Embodiment 1 is configured to install the support bar 2 at the installation position on the base 3 corresponding to the installation position information calculated based on the machining shape information of the workpiece 1. Since the workpiece 1 is supported at the support point corresponding to the shape of the workpiece 1, the deflection of the workpiece 1 is suppressed.
In addition, since the support rods 2 are adaptively arranged in this way, they are not arranged at unnecessary places, so that the number of the support rods 2 used during processing can be reduced.
Further, since the support bar installation position calculated by the calculation unit 6 is set inside the part to be cut out, the position at which the processing means 4 performs the processing and the position of the support bar 2 that supports the workpiece 1 coincide with each other. Therefore, it is possible to avoid the laser beam emitted from the processing means 4 from being damaged by the support rod 2.
Furthermore, when it is necessary to replace the support bar 2 due to deterioration of the support bar 2 or the like, if the support bar 2 is fixedly disposed as in the prior art, the range of replacement work is wide and difficult to work. If the support rods 2 are stored together in the push-out means 7a as in the first embodiment and are appropriately arranged, the replacement work can be easily performed.

In addition, the workpiece | work 1 is not restricted to plate shape, A three-dimensional shape may be sufficient. In that case, information on the solid shape may be input as the processing shape information, and the installation position information may be calculated. Further, the calculation of the internal support position 13 is not limited to the method of calculating by moving the coordinates of the coordinate group toward the center, and a position where the work 1 can be supported at a position where the deflection of the work 1 is small may be calculated. For example, the center of gravity may be obtained based on the weight distribution of the workpiece 1, and the arrangement position with less deflection may be calculated.
Further, the resolution at which the support bar installation means 7 can install the support bar 2 depends on the size of the protrusions of the rail casing 71b or the belt 72b and the distance between the protrusions. Accordingly, when the installation position information is calculated by the calculation unit 6, the calculated coordinate value is corrected to the closest position among the coordinates where the support bar installation means 7 can install the support bar 2, and the support adapted to the machining shape is supported. It can be a position.
The processing means may be any laser light source as long as it can process the workpiece, and may be, for example, a water jet nozzle for cutting the workpiece with high-pressure water.

In the first embodiment, the moving means for moving the relative position between the processing means 4 and the base 3 has been described as moving means. However, the processing means 4 is fixed and the base 3 is moved. But it ’s okay.
In the present embodiment, the part to be cut out from the workpiece 1, for example, the one that calculates the installation position information that supports the inside of the star when the part having a star shape in FIG. 2 is to be cut out has been described. It is good also as what calculates installation position information so that the workpiece | work 1 after having been cut out by 2 may not bend. Thereby, the whole workpiece | work 1 can be stabilized more during processing, and it can process accurately.

1. Work 2 2. Support rod Substrate 4. Processing means 5. Moving means 6. Calculation unit 7. Support bar installation means 7a. Extruding means 7b. Rail 71b. Rail housing 72b. Belt 73b. Rotating part 7c. x-axis drive means 7d. y-axis drive means 71d. Belt 72d. Motor 11. Vertex 12. Center 13. Internal support position 14. Intermediate support position

Claims

A support rod for supporting the workpiece;
A base on which the support bar is installed, and the workpiece is placed via the support bar;
Processing means for processing the workpiece placed on the substrate;
Moving means for moving a relative position between the processing means and the base;
A calculation unit that calculates installation position information indicating an installation position of the support bar installed on the base based on the machining shape information of the workpiece;
Based on the installation position information calculated by the calculation unit, support bar installation means for installing the support bar at an installation position on the base corresponding to the installation position information;
A processing device with
The calculation unit obtains a center point obtained by averaging the vertices of the machining shape included in the machining shape information, obtains a point that moves each vertex toward the center point as an internal support position, and determines the internal support position as the internal support position. The processing apparatus according to claim 1, wherein the processing apparatus is set as a support bar installation position.
The calculation unit determines whether it is necessary to calculate an intermediate support position based on the distance between the internal support positions, and when it is determined to be necessary, an intermediate point between the internal support positions is set as an intermediate support position. The processing apparatus according to claim 2, wherein the intermediate support position is a set position of the support bar.
The support bar installation means is
Extruding means for storing the support rod and extruding at a timing based on the installation position information;
A rail for holding the support rod pushed out by the pushing means;
An x-axis driving means for moving the support rod held by the rail to a position based on the installation position information on the rail and pushing the rail;
The processing apparatus according to claim 1, further comprising a y-axis driving unit that holds the rail pushed out by the x-axis driving unit and moves to a position based on the installation position information.