JP2002073132A - Device and method for boring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and a method for boring which do not bore holes at wrong positions, make the total boring operation time shorter, and enables unmanned operation free of an unbored hole. SOLUTION: This boring device is equipped with a grating data expanding means 12 which expands boring positions in matrix by using design data and a boring command generating means 13 which calculates spindle efficiency, i.e., the value obtained by dividing the number of bored holes by a positioning frequency × the number of spindles for machining according to information on the boring positions expanded into the matrix and supplies a machining command to a spindle 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drilling apparatus and a drilling method for efficiently drilling a workpiece in a short time and accurately.

[0002]

2. Description of the Related Art For example, a heat exchanger such as a feed water heater or a condenser applied to a thermal power plant or a nuclear power plant is a 1000 MW class with a condensate of several million tons per hour.
Due to the necessity of treating the water supply, several hundred to several thousand heat transfer tubes are accommodated in the body of each unit.

As described above, many heat transfer tubes are supported and fixed by a tube plate or a support plate housed in the body, and heat exchange is performed between turbine bleed air as a heating source and condensate / water supply as a heated source. Vibration due to the drift of the flow and the like caused by the flow, deflection due to its own weight, and the like are dealt with.

On the other hand, for a tube sheet or the like for supporting and fixing a large number of heat transfer tubes, a grid-like line is scribed on the surface of a flat plate, and the intersection of the scribe line is processed with a NC (numerical control) drilling machine. Drilling work was performed one by one using a machine.

[0005]

In a conventional drilling method, a grid-like line is scribed on a surface of a tube sheet or the like, and a line is drilled one by one at an intersection of the scribe line using a processing machine. Therefore, improvement has been demanded in terms of the efficiency of the processing operation. In other words, in the conventional working method, much time is required only for the scoring work, and furthermore, since a hole forming work for each hole is added, more working time is consumed.

[0006] Further, since a large number of drilling operations are performed, it is easy to make mistakes in the position of the holes, and the operator has to perform the drilling operation with a short cut, which makes it difficult to perform unmanned operations. there were.

[0007] Further, even in automatic operation using a drilling machine equipped with an NC, during drilling operation, a hole position where a tool error occurs for some reason remains a machining operation, and after the NC automatic operation is completed, the hole is returned to the stopped hole processing position. There were problems such as the necessity of performing corrective work.

The present invention has been made in view of such circumstances, and when drilling, the positions of the holes are made without mistakes, so that the entire drilling operation time is further shortened, and unmanned holes without drilling are left unattended. An object of the present invention is to provide a drilling apparatus and a drilling method that enable operation.

[0009]

In order to achieve the above object, a drilling apparatus according to the present invention uses a spindle having a drilling shaft and a positioning shaft as described in claim 1. In a drilling machine that performs drilling on a workpiece, a grid data expansion unit that expands a drilling position from a design data into a matrix, and a value obtained by dividing the number of drillings and the number of positioning times the number of processing axes as an axis efficiency, And a drilling command creating means for calculating the axis efficiency based on the information of the drilling position developed in the matrix and giving a machining command to the spindle.

According to a second aspect of the present invention, there is provided a drilling apparatus for forming a workpiece on a workpiece by using a main shaft having a drilling axis and a positioning axis. In a drilling machine that performs drilling,
A grid data expanding means for expanding a hole machining position from a design data into a matrix, and when a value obtained by dividing the number of drillings by the number of times of positioning times the number of machining axes is defined as an axis efficiency, the axis efficiency is calculated based on the hole machining position developed in the matrix. Drilling command creation means that calculates based on information and gives a machining command to the spindle, counts the number of drilling commands from the drilling command creation means, and when the number of drilling times exceeds a predetermined number, Tool life management means for issuing an exchange command to the spindle.

According to a third aspect of the present invention, there is provided a drilling apparatus for forming a workpiece on a workpiece by using a spindle having a drilling axis and a positioning axis. In a drilling machine that performs drilling,
A grid data expanding means for expanding a hole machining position from a design data into a matrix, and a value obtained by dividing the number of drilling times and the number of positioning times the number of machining axes as an axis efficiency, the axis efficiency is calculated based on the hole machining position developed in the matrix. A drilling command creating means for calculating and giving a machining command to the spindle, based on information, and comparing a command from the drilling command creating means with information from the grid data expanding means, and the drilling position is within an allowable error range. When a machining command is given to the spindle,
And a hole position checking means for issuing a machining stop command to the spindle when the allowable error range is exceeded.

According to a fourth aspect of the present invention, there is provided a drilling apparatus according to the present invention for forming a workpiece on a workpiece by using a spindle having a drilling axis and a positioning axis. In a drilling machine that performs drilling,
During the drilling of the workpiece, when an abnormality occurs in the spindle, the drilling is performed using the normal drilling shaft, and after the normal drilling shaft finishes the drilling, the drilling is interrupted. An additional processing means is provided for giving a command to the main spindle to perform drilling of the drilled hole using the normal drilling axis.

According to a fifth aspect of the present invention, there is provided a drilling apparatus for forming a workpiece on a workpiece by using a main shaft having a drilling axis and a positioning axis. In a drilling machine that performs drilling,
A grid data expanding means for expanding a hole machining position from a design data into a matrix, and when a value obtained by dividing the number of drillings by the number of times of positioning times the number of machining axes is defined as an axis efficiency, the axis efficiency is calculated based on the hole machining position developed in the matrix. Drilling command creation means that calculates based on information and gives a machining command to the spindle, counts the number of drilling commands from the drilling command creation means, and when the number of drilling times exceeds a predetermined number, The tool life management means for issuing an exchange command to the spindle, the command from the drilling command creation means and the information from the grid data development means are matched, and when the hole machining position is within the allowable error range, a machining command is issued to the spindle. And a hole position checking means for giving a machining stop command to the spindle when exceeding the allowable error range; and When a normal occurs, the drilling is performed using the normal drilling axis.After the normal drilling axis finishes drilling, the normal drilling axis is And additional processing means for giving a command to perform drilling using the spindle.

According to a sixth aspect of the present invention, there is provided a drilling apparatus according to the present invention, wherein the drilling command creating means is configured to perform the drilling processing based on information from the grid data expanding means. When the number of steps exceeds the range of the maximum stroke between the spindles expressed by the number of pitches × the number of spindles, the drilling process is divided and processed, and when it is within the range of the maximum stroke between the spindles, the selection process for batch processing the drilling process Means, an inter-spindle pitch candidate calculation means for calculating an integer value of a value obtained by dividing the number of stages for one row of drilling by the number of spindles, as a pitch between the spindles, and calculating a minimum setting pitch and a maximum setting pitch from the pitch between the spindles. A two-main-axis pitch calculating means for calculating a first main-axis pitch and a second main-axis pitch based on information from the main-axis main pitch candidate; and a first main-axis pitch and a second main-axis pitch. The combination calculated, in which a shaft efficiency calculating means for calculating the maximum axial efficiency.

According to a seventh aspect of the present invention, there is provided a drilling method according to the present invention, wherein the drilling command creating means is configured to perform the drilling processing based on information from the grid data expanding means. Processing means for dividing and processing drilling when the number of steps exceeds the range of the maximum stroke between the spindles represented by pitch number × number of spindles, and for batch processing when the number of steps is within the range of the maximum stroke between the spindles. And the integer value obtained by dividing the number of steps for one row of drilling by the number of spindles is used as the pitch between the spindles, and the minimum setting pitch and the maximum setting pitch are calculated from the spindle pitch. Means for calculating the inter-spindle pitch for each row of the drilling based on the

Further, in order to achieve the above object, the drilling method according to the present invention provides a method for drilling a workpiece by using a spindle having a drilling shaft and a positioning shaft. When performing drilling, the drilling positions are developed in a matrix from the design data and are arranged at grid-like intersections.On the other hand, when the value obtained by dividing the number of drillings by the number of positioning times × number of processing axes is used as the axis efficiency, In this method, the efficiency is calculated based on the information of the drilling positions arranged at the grid-like intersections and given to the spindle.

According to a ninth aspect of the present invention, there is provided a drilling method according to the present invention for forming a workpiece on a workpiece by using a spindle having a drilling axis and a positioning axis. When performing drilling, the drilling position is developed into a matrix from the design data and placed at a grid-like intersection, while the value obtained by dividing the number of drillings by the number of positioning times the number of processing axes is used as the axis efficiency. Efficiency is calculated based on the information of the hole machining position arranged at the lattice-shaped intersection, and a machining command is given to the spindle, and the number of drills is counted from the machining command, and the number of holes exceeds a predetermined number. Is in effect, a replacement command is issued to the spindle.

According to a tenth aspect of the present invention, there is provided a drilling method for forming a workpiece on a workpiece by using a spindle having a drilling axis and a positioning axis. When performing drilling, the drilling position is developed into a matrix from the design data and arranged at the grid-like intersection, while the axis efficiency is defined as the value obtained by dividing the number of drilling times and the number of positioning times the number of processing axes as the axis efficiency. Efficiency is calculated based on the information of the hole machining positions arranged at the grid-like intersection, and a machining command is given to the spindle, and the machining command is compared with the information of the hole machining positions arranged at the grid-like intersection. A machining command is given to the spindle when the drilling position is within the allowable error range, and a machining stop command is given to the spindle when the drilling position exceeds the allowable error range.

Further, in order to achieve the above object, the drilling method according to the present invention provides a method for drilling a workpiece by using a spindle having a drilling shaft and a positioning shaft. During drilling, when an error occurs in the spindle during drilling of the workpiece, the drilling is performed using a normal drilling shaft, and after the normal drilling shaft has finished drilling. A method of giving a command to the main spindle to perform drilling on a hole for which processing has been interrupted using the normal drilling axis.

According to a twelfth aspect of the present invention, there is provided a drilling method for forming a workpiece on a workpiece by using a spindle having a drilling axis and a positioning axis. When performing drilling, the drilling position is developed into a matrix from the design data and placed at a grid-like intersection, while the value obtained by dividing the number of drillings by the number of positioning times the number of processing axes is used as the axis efficiency. Efficiency is calculated based on the information of the hole machining position arranged at the lattice-shaped intersection, and a machining command is given to the spindle, and the number of drills is counted from the machining command, and the number of holes exceeds a predetermined number. Command, an exchange command is issued to the spindle,
Furthermore, when the machining command and the information of the hole machining position arranged at the lattice-shaped intersection are matched, when the hole machining position is within the allowable error range, a machining command is given to the spindle, and when the allowable error range is exceeded, While the machining stop command is given to the spindle, when an error occurs in the spindle during the drilling of the workpiece, a hole is drilled using a normal drilling axis, and the normal drilling axis is drilled. After finishing,
This is a method of giving a command to the main spindle to perform drilling on a hole for which processing has been interrupted using the normal drilling axis.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a drilling apparatus and a drilling method according to the present invention will be described below with reference to the drawings and reference numerals attached to the drawings.

Prior to the description of the drilling apparatus and the drilling method according to the present embodiment, an application method of the present embodiment will be schematically described.

When the hole arrangement to be drilled is located symmetrically to the left and right lines, symmetrically to the top and bottom lines and point symmetrically, and when all the hole arrangements are located on one grid, the entire arrangement is to be processed. Drilling can be performed by applying the form.

Further, in the left-right line symmetry, for example, the left side hole arrangement, in the up-down line symmetry, for example, the upper side hole arrangement, and in the point symmetry, the present embodiment is applied to the hole arrangement of the original data. Can be processed using the Y-axis mirror function, the X-axis mirror function, and the work coordinate rotation function of the NC device.

When the hole array is composed of a plurality of grids, the present embodiment can be applied to each grid array to perform drilling.

FIG. 1 is a block diagram used for explaining an embodiment of a drilling apparatus and a drilling method according to the present invention. In this embodiment, a horizontal processing machine having three main shafts (processing shafts) 19 in which a drilling shaft 19a, a positioning shaft 19b, and a drilling shaft 19c are arranged in order in the vertical direction will be described. The number of spindles, the spindle arrangement method, and the vertical and horizontal types of the processing machine are not limited to the present embodiment.

The drilling apparatus and the drilling method according to the present embodiment are composed of a grid data expanding means 12, a drilling instruction creating means 13, a tool life managing means, and all of the means for drilling, the entire process of which is denoted by reference numeral 11. 14, NC (numerical control) machining command means 15.

Further, the drilling apparatus and the drilling method according to the present embodiment include a hole position checking means 16 for checking whether or not a predetermined hole position is appropriate, and a method for drilling a workpiece while drilling. When an abnormality occurs in the main spindle (machining axis) 19, a configuration is provided in which an additional processing means 17 is provided for drilling with a normal main spindle.

The grid data expanding means 12 expands the hole positions into a matrix based on the information from the CAD data 10 which is created in advance by, for example, the design department. Here, as shown in FIG. 2, the CAD data 10 includes, for example, a plant name, a drawing number, a part name, an input person name, an input date,
Machining part, total number of holes, hole diameter, array origin X coordinate, array origin Y
Header data such as coordinates, grid angles, X-axis pitch, Y-axis pitch, the number of steps, the number of rows, and the number of steps and the presence or absence of drilling, ie, a hole array represented by "0" (no drilling) or "1" (drilling) Data.

FIG. 3 shows a specific example of the hole arrangement. This figure 3
, The X-axis pitch, Y
The hole position is set on the grid determined from the axis pitch and the grid angle.

When the hole position is set, the drilling command creating means 13 performs drilling to maximize the shaft efficiency (a value obtained by dividing the number of holes by the number of times of positioning times the number of spindles (machining axes); hereinafter, referred to as shaft efficiency). Create a directive.

The created drilling command is transferred to the tool life managing means 14, and the number of drills of each spindle 19 is counted up by the commanded drilling processing information, and reaches the number of drills set in advance as the tool life. It is determined whether or not the operation has been performed, and if there is a spindle 19 which has reached the tool life, the tool exchange command information is transferred to the NC machining command means 15.

The NC machining command means 15 confirms whether the tool change command is “present” or “not present”, and if it is “present”, transfers the tool change command information to the drilling control device 18. next,
The drilling command information transferred from the drilling command creating means 13 is also transferred to the drilling control device 18 via the NC processing command means 15.

The drilling control device 18 performs a spindle exchange instructed based on the transferred tool exchange instruction information and the drilling instruction information, and then selects a spindle 19 to be drilled, and performs drilling.

When the drilling is completed, the drilling end information is set to N
This is fed back to the C machining command means 15.

The NC machining instruction means 15 having received the drilling end information gives information to the drilling instruction creating means 13 so as to create the next drilling instruction. Drilling command creation means 13
Creates drilling command data for the next drilling operation. Such processing is repeatedly performed on all the drilling data.

On the other hand, upon receiving the drilling command information from the NC drilling command means 15, the drilling control device 18 compares the position information of the spindle 19 selected by the drilling command with the hole position checking means 1.
Transfer to 6. The hole position checking means 16 determines whether or not the transferred hole position information matches the hole position on the previously developed grid data. To continue. But,
If they do not match, the hole position checking means 16 determines the allowable error range (the allowable error range is, for example, about 0.03 mm).
Then, the drilling operation is continued on the spindle 19 as it is, and when the deviation is out of the permissible error range, the machining stop information is given to the drilling control device 18 and the drilling operation is skipped.
The main shaft 19 is drilled at another position.

As described above, the hole position checking means 16 always checks that the main shaft 19 is performing the correct processing on the hole position of the workpiece.

When a sudden abnormality such as tool breakage occurs during drilling of the spindle 19 into the workpiece, the drilling control device 18 causes the spindle 19 in which the abnormality has occurred to stop drilling. Then, the stop information and the normal continuation information of the drilling of the spindle 19 are given to the additional processing means 17. The additional machining means 17 controls the drilling control device 1 for the stopped hole after the remaining normal drilling operation of the spindle 19 is completed.
Then, the hole machining command information is given to the remaining normal spindle 19 via. The drilling control device 18 causes the remaining normal spindle 19 to carry out additional machining, and sends the drilling end information to the NC machining instruction unit 1.
Feedback to 5

As described above, according to the present embodiment, when an abnormality occurs in the spindle 19 during drilling, the remaining normal spindle 19 is drilled according to the command information of the additional machining means 17, so that the remaining drilling remains. Holeless drilling can be performed. Further, since these processes are automated, even when an abnormality occurs in the spindle 19, it is possible to perform an unmanned operation without leaving any boring.

FIG. 4 is a flowchart used to explain the specific processing procedure of the drilling instruction creating means 13 for maximizing the axial efficiency shown in FIG.

The drilling instruction creating means 13 calculates the total number of holes from the information obtained by expanding the hole positions into a matrix by the grid data expanding means 12 (step S401). In this case, the calculated number of stages is equal to each axis 19a, 1
If the number of pitches x the number of spindles that can be covered by the maximum pitch (stroke) between 9b and 19c is larger than the number of spindles, the hole arrangement is divided into, for example, the upper half and the lower half, and drilling processing is performed for each division. When the number of steps is smaller than the number of pitches that can be covered by the maximum inter-spindle pitch × the number of spindles, the boring process for the workpiece is performed collectively (steps S402 and S403).

Next, all the settable pitches between the spindles are calculated (step S404).

In this step S404, as shown in FIG. 6, the number of stages in one row is read (step S51), and a value obtained by dividing the number of spindles into an integer is set as the pitch between the spindles (step S52). Next, the distance between the main spindles is divided by the Y-axis pitch of the hole array by dividing the distance that can be moved to the minimum and maximum, respectively, and it is checked whether or not it is within the range of the minimum setting pitch and the maximum setting pitch that are converted into integers. The minimum set pitch is replaced by the maximum set pitch when the pitch is large, and the pitch between the spindles in the row is obtained (steps S53, S54, S55, S5).
6).

Further, the drilling command creating means 13 reads the number of holes arranged in the row (step S57), and repeats the calculation of the pitch between the spindles in each row for each row (step S57).
58). The obtained pitch between the main axes of each row is stored in the memory (step S59).

When the inter-spindle pitch is calculated for each row, the drilling command creating means 13 obtains a combination of two types of inter-spindle pitches as shown in FIG. 4 (step S40).
5). Here, the combination of the two types of pitches between the main shafts is that the pitch of the drilling shaft 19a, the positioning shaft 19b, and the drilling shaft 19b among the main shafts 19 can be freely changed any number of times. If the number of times is increased, it may cause an erroneous operation by the operator. Therefore, in the present embodiment, the combination with the row of the hole arrangement when the pitch between the spindles is changed only once is used.

In this step S405, as shown in FIG. 7, all the spindle pitches are read from the memory (step S61), and the maximum spindle pitch is set as the first spindle pitch (step S62). Next, the other main-axis pitches other than the maximum main-axis pitch are set as candidates for the second-type main-axis pitch, and all combinations of the first main-axis pitch and any one of the second main-axis pitch candidates are set. (Step S
63, S64).

The drilling command creating means 13 calculates the shaft efficiency based on the combination information of the pitch between the spindles from step S405 (step S406).

First, the shaft efficiency when drilling is performed only with the pitch between the first spindles is obtained. The equation is: shaft efficiency = number of total holes / (first spindle pitch × number of rows × number of spindles). Further, the shaft efficiencies of all combinations of the first main shaft pitch and the second main shaft pitch are obtained. The formula is: shaft efficiency = number of holes /
(Pitch of first main spindle x number of rows drilled at first main spindle pitch + second main spindle pitch x number of rows drilled at second main spindle pitch x number of main spindles). Here, the proper use of the first main spindle pitch and the second main spindle pitch will be described. A row in which the number of steps in each row of the hole array is smaller than the second main spindle pitch × the number of main spindles is drilled at the second main spindle pitch, and the remaining rows are drilled at the first main spindle pitch.

Among the shaft efficiencies when drilling with only the first main spindle pitch and the drilling with all combinations of the first main spindle pitch and the second main shaft pitch, the maximum shaft efficiency is considered. The condition for setting the pitch between the spindles is calculated (step S407).

Next, for drilling at the first inter-spindle pitch, the coordinates of drilling are set at the position of the central positioning axis 19c (step S408), and the presence or absence of drilling at each inter-spindle position is determined by grid data. To create a block of drilling command information (step S409), and transfer the drilling NC command information to the drilling control device 18 (step S41).
0). After that, the process waits until there is drilling command end information, and if there is the end information, the above process is repeated until there is no machining data to be drilled at the first spindle pitch (steps S411, S412, S413).

Next, as shown in FIG. 5, the drilling command creating means 13 shifts to NC data creation at the second spindle pitch (step S414), until there is no machining data to be drilled at the second spindle pitch. Positioning, NC command creation,
The processing of NC command transfer, standby of drilling end information, and positioning of the next drilling are repeatedly performed (steps S415 and S415).
416, S417, S418, S419).

Further, the drilling command creating means 13 checks whether or not there is divided data.
Finish the drilling operation. If there is divided data, the remaining lower half hole data is developed (step S4).
20, S421), and the processing after the calculation of the candidate pitch between the spindles is performed in the same manner as described above in each of steps S404 to S404 shown in FIG.
Repeatedly along 418.

As described above, in the present embodiment, the maximum value of the shaft efficiency is calculated, and the most efficient inter-spindle pitch is set when the inter-spindle pitch is changed only once. Drilling time can be further reduced.

Although the flowcharts shown in FIGS. 4 to 7 have been described for the case of selecting two types of the pitch between the main spindles, the pitch between the main spindles becomes one type when the number of holes arranged is constant. Also in this case, the flowcharts shown in FIGS. 4 to 7 can be applied.

Further, it is possible to select two or more types of the inter-spindle pitches and a maximum of several types of the inter-spindle pitches in the front row.
When selecting the pitch between the spindles in all rows, as will be described later,
When two or more types of the pitch between the spindles are selected, the number of types of the pitch between the spindles selected in Step S405 of the above-described flowchart is set to a desired number, and Steps S408 and S40 are performed.
9, S410, S411, S412, and S413 can be performed by repeating the processing for each number of types of pitch between the spindles.

Next, a hole drilling method in a case where the pitch between the spindles in each row of the hole array is changed will be described with reference to the flowchart shown in FIG.

The drilling command creating means 13 calculates the number of stages for each column from the information obtained by developing the hole positions into a matrix by the grid data developing means 12 (step S701). In this case, the calculated number of steps corresponds to
a, when the number of pitches that can be covered by the maximum pitch (stroke) between the positioning shaft 19b and the drilling shaft 19c × the number of spindles is larger than the number of spindles, the hole arrangement is divided into, for example, an upper half and a lower half,
Drilling processing is performed for each division. When the number of steps is smaller than the number of pitches that can be covered by the maximum inter-spindle pitch × the number of spindles, the boring process for the workpiece is performed collectively (steps S702 and S703).

Next, the hole data in the first column is read (step S704), and the pitch between the spindles in that column is determined (step S705). In this step S705, as shown in FIG. 10, first, a value obtained by dividing the number of stages by the number of spindles and converting it into an integer is used as a pitch between spindles (step S81). Next, the distance between the main spindles is divided by the Y-axis pitch of the hole array by dividing the distance that can be moved to the maximum and the minimum, and it is checked whether or not the minimum set pitch and the maximum set pitch are converted into integers. The minimum set pitch is replaced with the maximum set pitch when the pitch is large, and the pitch between the spindles in that row is determined (step S
82, S83, S84, S85).

Further, since the drilling command creating means 13 performs the hole drilling at the pitch between the spindles obtained in step S83 or S85, as shown in FIG. 8, the coordinates are set by the center positioning axis 19b of the spindles 19, as shown in FIG. (Step S70)
6), the presence or absence of drilling of each of the drilling axes 19a, 19b and 19c is checked from the grid data, and a block for drilling commands is created (step S707).

The drilling creation instructing means 13 determines in step S7
The drilling command created in step 07 is given to the drilling control device 18 (step S708).

Thereafter, the drilling command creating means 13 waits until there is drilling command end information from the drilling control device 18 via the NC machining command means 15, and when there is drilling processing end information, sets the next drilling coordinate. And repeats such processing (steps S709, S710, S710).
711).

When the drilling for one row is completed, the drilling command creating means 13 reads the grid data of the next row as shown in FIG. 9 (step S712), and repeats the process of calculating the pitch between the spindles.

When the drilling of all the rows is completed (step S713), the drilling command creating means 13 checks the presence or absence of the divided data, and terminates the drilling work if there is no divided data. If there is divided data, the remaining lower half hole data is developed (steps S714 and S71).
5) The process is repeated from the first row of drilling data reading.

As described above, according to the present embodiment, the drilling is performed by setting the pitch between the spindles in all the rows of the hole array.
Drilling can be performed with maximum shaft efficiency.

The drilling method according to this embodiment is applied as a program that can be executed by a computer by writing it on a recording medium such as a magnetic disk, an optical disk, or a semiconductor memory, or transmitting it from a communication medium. It is also possible to apply. A computer that realizes this function includes a program recorded on a recording medium,
Alternatively, the above-described processing is executed by reading a program transmitted from a communication medium and controlling the operation by the program.

[0067]

As described above, according to the drilling apparatus and the drilling method according to the present invention, many drilling operations are performed based on the data of the maximum shaft efficiency calculated by the drilling command creating means. In addition, the drilling time can be further shortened, and the drilling is performed while confirming whether or not there is a drilling position on the lattice by the hole position checking means. be able to.

Further, according to the drilling apparatus and the drilling method according to the present invention, the number of drilling times of the spindle is counted by the tool life managing means, and when the number of drilling times exceeds a predetermined number, the spindle replacement command is issued. Out, and
When an abnormality occurs in the main spindle, a command is issued by the additional machining means to perform additional machining of the hole in which the spindle abnormality has occurred with the normal main spindle, so that there is no machining left and unmanned operation can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram used for describing an embodiment of a drilling apparatus and a drilling method according to the present invention.

FIG. 2 is a view used to explain an example of CAD data of a hole array in the drilling apparatus and the drilling method according to the present invention.

FIG. 3 is a view used to explain an example of a hole arrangement in the drilling apparatus and the drilling method according to the present invention.

FIG. 4 is a flowchart for processing the drilling command information while maximizing the axial efficiency in the drilling apparatus and the drilling method according to the present invention.

FIG. 5 is a diagram illustrating a drilling apparatus and a drilling method according to the present invention;
9 is a flowchart used to explain creation of C command information.

FIG. 6 is a flowchart used to explain the calculation of a candidate for the pitch between the spindles in the drilling apparatus and the drilling method according to the present invention.

FIG. 7 is a flowchart used for explaining setting of two types of pitches between main spindles in the drilling apparatus and the drilling method according to the present invention.

FIG. 8 is a flowchart for setting a pitch between spindles in all rows and processing drilling command information in the drilling apparatus and the drilling method according to the present invention.

FIG. 9 is a flowchart used to explain whether or not the drilling of the row of the hole array of the workpiece is completed based on the information created in FIG. 8 in the drilling apparatus and the drilling method according to the present invention.

FIG. 10 is a flowchart used for explaining the setting of the pitch between the spindles in the drilling apparatus and the drilling method according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 CAD data 11 Means of all drilling processes 12 Grid data development means 13 Drilling command creation means 14 Tool life management means 15 NC machining command means 16 Hole position checking means 17 Additional machining means 18 Hole machining control device 19 Spindle 19a Hole machining axis 19b Positioning axis 19c Drilling axis

Continued on the front page (72) Inventor Shuji Takahashi 2-4-4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Inside the Toshiba Keihin Works Co., Ltd. (72) Inventor Hiroshi Kada 2--4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Co., Ltd. F-term in Toshiba Keihin Works (reference) 3C036 BB13 5H269 AB03 AB19 BB03 BB05 NN11

Claims (12)

[Claims] 1. A drilling apparatus for drilling a workpiece using a spindle having a drilling axis and a positioning axis, grid data expanding means for expanding a drilling position from a design data into a matrix, and a drilling apparatus. When the value obtained by dividing the number by the number of times of positioning times the number of machining axes is used as the axis efficiency, the axis efficiency is calculated based on the information of the hole machining position developed in the matrix, and a drilling command creating means for giving a machining command to the spindle is provided. A drilling device comprising: 2. A drilling apparatus for drilling a workpiece using a spindle having a drilling axis and a positioning axis, a grid data expanding means for expanding a drilling position from a design data into a matrix, and a drilling apparatus. When the value obtained by dividing the number by the number of times of positioning times the number of machining axes is used as the axis efficiency, the axis efficiency is calculated based on the information of the hole machining position developed in the matrix, and a drilling command creating means for giving a machining command to the spindle is provided. And a tool life management means that counts the number of drilling commands from the drilling command creation means and issues a replacement command to the spindle when the number of drilling times exceeds a predetermined number. Drilling equipment. 3. A drilling apparatus for drilling a workpiece using a spindle having a drilling axis and a positioning axis, grid data expanding means for expanding a hole drilling position from a design data into a matrix, and drilling. When the value obtained by dividing the number by the number of times of positioning times the number of machining axes is used as the axis efficiency, the axis efficiency is calculated based on the information of the hole machining position developed in the matrix, and a drilling command creating means for giving a machining command to the spindle is provided. And, the command from the drilling command creating means and the information from the grid data expanding means are matched, and when the drilling position is within the allowable error range, a machining command is given to the spindle, and when the allowable error range is exceeded, A drilling machine comprising: a hole position checking means for giving a machining stop command to a spindle. 4. A drilling apparatus for drilling a workpiece using a spindle having a drilling axis and a positioning axis, wherein when an error occurs in the spindle during drilling of the workpiece. A command to perform drilling using a normal drilling axis, and after the normal drilling axis has completed drilling, to perform drilling using the normal drilling axis for the hole for which processing has been interrupted. A drilling device, comprising an additional machining means for applying a pressure to the spindle. 5. A drilling apparatus for drilling a workpiece using a spindle having a drilling axis and a positioning axis, grid data developing means for developing a drilling position from a design data into a matrix, and drilling. When the value obtained by dividing the number by the number of times of positioning times the number of machining axes is used as the axis efficiency, the axis efficiency is calculated based on the information of the hole machining position developed in the matrix, and a drilling command creating means for giving a machining command to the spindle is provided. And, counting the number of drilling commanded from the drilling command creation means, when the number of drilling exceeds a predetermined number, tool life management means for issuing a replacement command to the spindle, and from the drilling command creation means Is compared with the information from the grid data expanding means, and when the hole machining position is within the allowable error range, a machining command is given to the spindle, and the allowable error A hole position check means for giving a machining stop command to the main spindle when the main shaft is exceeded, and when an abnormality occurs in the main spindle during boring of the workpiece, a hole is drilled using a normal boring axis. After the normal drilling axis has completed drilling, additional machining means for giving a command to the spindle to perform drilling using the normal drilling axis for the hole for which processing has been interrupted. Drilling machine characterized by the following. 6. A drilling command creating means, wherein the number of drilling steps is the number of pitches × the number of pitches based on information from the grid data expanding means.
Selection processing means for dividing and processing drilling when the maximum stroke between the spindles represented by the number of spindles is exceeded, and batch processing when drilling within the maximum stroke between the spindles, and drilling An inter-spindle pitch candidate calculating means for calculating an integer value of a value obtained by dividing the number of stages in one row by the number of spindles as a pitch between the spindles, and calculating a minimum set pitch and a maximum set pitch from the pitch between the spindles; A first inter-main-axis pitch calculating means for calculating a first inter-main-axis pitch and a second inter-main-axis pitch based on information from the candidate;
6. The drilling apparatus according to claim 1, further comprising: a shaft efficiency calculating means for calculating a maximum shaft efficiency. 7. The drilling command creating means, based on information from the grid data expanding means, determines that the number of drilling steps is the number of pitches ×
When the maximum stroke between the spindles represented by the number of spindles is exceeded, the drilling process is divided and processed, and when the maximum stroke between the spindles is within the range of the maximum stroke, a processing means for batch-processing the drilling, and a drilling process. An integer value obtained by dividing the number of stages in one row by the number of spindles is defined as a pitch between the spindles, a minimum setting pitch and a maximum setting pitch are calculated from the spindle pitch, and the above-described drilling is performed based on the information of the minimum setting pitch and the maximum setting pitch. 6. A drilling apparatus according to claim 1, further comprising means for calculating a pitch between the spindles for each row of processing. 8. When drilling a workpiece using a spindle having a drilling axis and a positioning axis, a drilling position is developed in a matrix from design data and arranged at a grid-like intersection. When the value obtained by dividing the number of drillings by the number of times of positioning times the number of machining axes is defined as the axis efficiency, the axis efficiency is calculated based on the information of the hole machining positions arranged at the lattice-shaped intersections, and given to the spindle. Characteristic drilling method. 9. When drilling a workpiece using a spindle having a drilling axis and a positioning axis, a drilling position is developed in a matrix from design data and arranged at a grid-like intersection. , The number of drilling times the number of positioning times
When the value divided by the number of machining axes is used as the axis efficiency, the axis efficiency is calculated based on the information of the hole machining position arranged at the lattice-shaped intersection, and the machining command is given to the main spindle, and from this machining command A drilling method characterized by counting the number of drillings and issuing an exchange command to the spindle when the number of drillings exceeds a predetermined number. 10. When drilling a workpiece using a spindle having a drilling axis and a positioning axis, a drilling position is developed in a matrix from design data,
When the axis efficiency is determined by dividing the number of drilling times and the number of positioning times the number of processing axes, while arranging the grid efficiency at the lattice-shaped intersection, the axis efficiency is calculated based on the information of the hole processing position arranged at the lattice-shaped intersection. The machining command is given to the spindle, and the machining command is compared with the information of the hole machining position arranged at the lattice-shaped intersection, and when the drilling position is within the allowable error range, the machining command is given to the spindle. A drilling method, wherein a machining stop command is given to the spindle when the allowable error range is exceeded. 11. When drilling a workpiece using a spindle having a drilling axis and a positioning axis, when an error occurs in the spindle during drilling of the workpiece,
A command to perform drilling using a normal drilling axis, and after the normal drilling axis has completed drilling, to perform drilling using the normal drilling axis for the hole for which processing has been interrupted. A drilling method, characterized in that: 12. When drilling a workpiece using a spindle having a drilling axis and a positioning axis, a drilling position is developed in a matrix from design data,
When arranging the number of drillings by the number of times of positioning times the number of processing axes as the axis efficiency while arranging them at the grid-shaped intersection, the axis efficiency is calculated based on the information of the hole processing positions arranged at the grid-shaped intersection. While giving a machining command to the spindle, counting the number of drilling from this machining command, when the number of drilling exceeds a predetermined number, issues a replacement command to the spindle, further, the machining command and the When the hole machining position is within the allowable error range, a machining command is given to the spindle, and when the hole machining position exceeds the allowable error range, a machining stop command is issued to the spindle when the hole machining position is within the allowable error range. On the other hand, during the drilling of the workpiece, when an abnormality occurs in the spindle, the drilling is performed using a normal drilling shaft, and after the normal drilling shaft finishes the drilling, the machining is performed. Drilling method a command to drilling with the normal drilling axis with respect to the hole that has been suspended, characterized in that applied to the spindle.