JP2023026357A - Interference check device, interference check method, and interference check system - Google Patents

Abstract

To provide a technology making it easy to check an interference between structures of a processing apparatus according to a simple method.SOLUTION: An interference check device 300 checks an interference between structures in a storage part of a processing apparatus including a main shaft 11 that rotates while retaining a tool 12, a retention part 41 that retains a processing object to be processed with the tool 12, pieces of moving means 10, 20, 30, 50, and 60 that relatively move the main shaft 12 and retention unit 41 in predetermined directions, and a storage part that stores the retention unit 41. The interference check device includes a processing unit 310 that reads an NC file, and extracts and handles a motion command for the moving means, and a memory unit 320 that stores in advance information on a prohibited area where an interference is prohibited. The processing unit 310 checks whether machine coordinate values calculated from coordinate values on the NC file are encompassed in the prohibited area.SELECTED DRAWING: Figure 5

Description

TECHNICAL FIELD The present invention relates to an interference check device, an interference check method, and an interference check system for a machining apparatus that machine an object using a tool.

As an example of checking an NC file, a machining apparatus performs an interference check operation for checking a portion where structures that move relatively when machining interfere with each other.

As a method for checking an NC file for interference, etc., there is known a technique for checking whether or not interference occurs for each movement command before machining based on three-dimensional model data and tool movement data (see Patent Document 1).

Japanese Patent Application Laid-Open No. 2006-4128

Moreover, as in Patent Document 1, a high-performance computer and processing time were required to create three-dimensional model data.

The present invention provides a technology that facilitates reducing the time required for checking NC files by a simple method.

In order to solve the above-mentioned problems, the interference check device of the present invention comprises a spindle that holds and rotates a tool, a holding section that holds a workpiece to be machined by the tool, and a predetermined combination of the spindle and the holding section. An interference check device for checking interference between structures in the storage unit of a processing apparatus comprising moving means for relatively moving in a direction and a storage unit for storing the holding unit, wherein the NC file is sequentially read, and the A processing unit that extracts and processes an operation command for the moving means, and a storage unit that stores information on a prohibited area for prohibiting interference in advance. It is characterized by checking whether or not the machine coordinate value is included in the prohibited area.

In order to solve the above-described problems, the interference check method of the present invention includes: a spindle that holds and rotates a tool; a holder that holds a workpiece to be machined by the tool; An interference check method for checking interference between structures in the accommodating portion of a processing apparatus comprising a moving means for relatively moving in a predetermined direction and an accommodating portion for accommodating the holding portion, wherein an NC file is sequentially read a step of extracting an operation command for the moving means; and a step of checking whether or not the machine coordinate values calculated from the coordinate values on the NC file are included in a previously stored prohibited area for prohibiting interference. and

In order to solve the above-described problems, the interference check system of the present invention includes a spindle that holds and rotates a tool, a holder that holds a workpiece to be machined by the tool, the spindle and the holder. An interference check system for checking interference between structures in the accommodating section of a processing apparatus comprising moving means for relatively moving in a predetermined direction and an accommodating section for accommodating the holding section, wherein an NC file is sequentially read. , a processing means for extracting and processing an operation command for the moving means, and a storage means for storing information of a prohibited area for prohibiting interference, which is stored in advance; It is characterized in that it is checked whether or not the machine coordinate values calculated from the coordinate values of are included in the prohibited area.

According to the present invention, an interference check for a numerically controlled machining apparatus having a moving axis can be performed with a small amount of processing.

1 is an external perspective view of a processing apparatus according to one embodiment of the present invention; FIG. The perspective view of the internal structure in the processing apparatus which concerns on embodiment. FIG. 4 is a perspective view of the internal configuration showing the relationship between the accommodating portion, the spindle, and the holding portion; FIG. 2 is a control block diagram in the processing device according to the embodiment; 4 is a flow chart of interference check according to the embodiment of the present invention. FIG. 4 is a side view showing the positional relationship between the tool and the tool length sensor according to the embodiment of the present invention; The perspective view which shows the state which inclined 90 degrees with respect to the horizontal direction in other embodiment. Flowchart of NC check according to another embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below based on embodiments.

<Embodiment>
A processing apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7. FIG. FIG. 1 is an external perspective view of a processing apparatus according to an embodiment of the present invention. A pressure increasing valve 90 is attached to an air compressor 200 that generates air. Unclamp the chuck. An air pressure detection sensor 91 is provided downstream of the pressure increase valve 90 . An air pressure sensor 91 may be provided inside the processing apparatus to measure how much pressure is applied to the chuck of the tool.

As shown in FIG. 1, the processing apparatus 100 accommodates a processing apparatus main body within an exterior cover 101 . The exterior cover 101 has an opening/closing door 102, and by opening the opening/closing door 102, the work can be replaced.

The processing apparatus 100 supports a frame 1 as a moving mechanism support member, a first moving mechanism 10, a second moving mechanism 20, and a third moving mechanism 30 supported by the frame 1, and a work W as an object to be processed. a support mechanism 40 , a first rotation mechanism (rotation mechanism) 50 and a second rotation mechanism (another rotation mechanism) 60 capable of rotating the support mechanism 40 , a tool magazine 70 , and an electrical unit 80 .

The frame 1 is mounted on a base 2 having a cavity inside, and as shown in FIG. 4. In this embodiment, the first frame portion 3 is arranged along the vertical direction, and the second frame portion 4 is arranged along the horizontal direction. The second frame 4 may be configured by separating a portion along the Y-axis direction and a portion along the Z-axis direction, connecting them with screws or the like, and providing beams.

The first moving mechanism 10 is supported by the first surface 3a of the first frame portion 3 of the frame 1 via the second moving mechanism 20, and rotates the main shaft 11 in the Z-axis direction (vertical direction, first direction). It is movable. A processing tool 12 is detachably attached to the spindle 11 via a tool holder (clamp). The spindle 11 is rotationally driven by a motor 13 . As shown in FIG. 2, the first moving mechanism 10 has a motor 14 and a guide shaft (not shown) arranged in the Z-axis direction. Move back and forth (up and down) in the direction. The main shaft 11 is supported via a Z-axis support member 16 so as to be movable along the guide shaft. For example, the guide shaft is a ball screw, and the Z-axis support member 16 is a member that moves along the guide shaft (ball screw) that rotates when driven by the motor 14 . The guide shaft and Z-axis support member 16 are covered with a cover 17 .

The second moving mechanism 20 is supported on the first surface 3a of the first frame portion 3 of the frame 1, and moves the first moving mechanism 10 in the X-axis direction (horizontal direction, second direction) perpendicular to the Z-axis direction. The main shaft 11 can be moved together with . The second moving mechanism 20 has a motor 21 and a guide shaft (not shown) arranged in the X-axis direction, and driven by the motor 21 reciprocates the first moving mechanism 10 along the guide shaft in the X-axis direction. move. As with the first moving mechanism 10, the second moving mechanism 20 may also use, for example, a ball screw as a guide shaft.

The third moving mechanism 30 is supported on the second surface 4a of the second frame portion 4 of the frame 1, and supported in the Y-axis direction (horizontal direction, third direction) orthogonal to the Z-axis direction and the X-axis direction. Mechanism 40 is movable. The third moving mechanism 30 has a motor (not shown) and a guide shaft (not shown) arranged in the Y-axis direction, and the motor drives the support mechanism 40 to reciprocate along the guide shaft in the Y-axis direction. move. As with the first moving mechanism 10, the third moving mechanism 30 may also use, for example, a ball screw as a guide shaft.

The third moving mechanism 30 also includes a support plate portion 31 that supports the second rotation mechanism 60, and the support plate portion 31 reciprocates along the guide shaft in the Y-axis direction. As shown in FIG. 2, the support mechanism 40 side of the gantry 2 in the Y-axis direction is open. This prevents interference with the frame 2. The third moving mechanism 30 can move the support mechanism 40 in the Y-axis direction together with the second rotating mechanism 60 and the first rotating mechanism 50, as will be described later in detail.

The support mechanism 40 supports a work W as an object to be cut by the processing tool 12, such as a dental prosthesis. Such a support mechanism 40 includes a holding portion 41 that holds the work W, and a support portion 42 that is connected at both ends to the rotating portion 51 of the first rotating mechanism 50 and supports the work W via the holding portion 41. have The holding portion 41 and the support portion 42 are separate bodies, and the holding portion 41 is fixed to the support portion 42, as will be described later in detail. However, the holding portion 41 and the support portion 42 may be integrated.

The first rotation mechanism 50 can rotate the support mechanism 40 around an a-axis as a rotation axis orthogonal to the Z-axis direction. In this embodiment, the a-axis is parallel to the X-axis direction. Such a first rotating mechanism 50 has a support frame 53 that rotatably supports the rotating portion 51 and a motor that drives the rotating portion 51 to rotate. The support frame 53 is formed in a substantially U-shape so as to surround the periphery of the support mechanism 40, and includes a first support portion 53a that supports the motor and the rotating portion 51, and an unshown support portion that is provided to face the rotating portion 51. It is composed of a second support portion 53b that supports the rotating portion, and a connection portion 53c that connects the first support portion 53a and the second support portion 53b.

The rotating portion 51 supported by the first support portion 53a and the rotating portion supported by the second support portion 53b are arranged so as to face each other in the a-axis direction and are rotatable about the a-axis as a rotation axis. ing. Both ends of the support mechanism 40 in the a-axis direction are respectively supported by the rotating parts. Thereby, the first rotation mechanism 50 supports the support mechanism 40 so as to be rotatable about the a-axis.

The first rotating mechanism 50 can rotate at least 180 degrees and can turn over the workpiece W supported by the supporting mechanism 40 . In the present embodiment, the first rotation mechanism 50 can rotate the support mechanism 40 by 360° around the a-axis.

The second rotating mechanism 60 can rotate the support mechanism 40 about the Z-axis direction and the b-axis as another rotating axis orthogonal to the a-axis. In this embodiment, the b-axis is parallel to the Y-axis direction. Such a second rotating mechanism 60 has a rotating portion to which the support frame 53 of the first rotating mechanism 50 is attached, and a motor that drives the rotating portion 61 to rotate. The connecting portion 53c of the support frame 53 is attached to the rotating portion 61, and the rotating portion 61 can rotate the support frame 53 around the b-axis by being rotationally driven by the motor 62. As shown in FIG. Therefore, the second rotation mechanism 60 supports the support mechanism 40 together with the first rotation mechanism 50 so as to be rotatable around the b-axis.

A tool magazine 70 as a tool holding section can hold a plurality of processing tools, is arranged adjacent to the first rotating mechanism 50 , and is supported so as not to rotate together with the second rotating mechanism 60 . Further, the tool magazine 70 can be moved in the Y-axis direction together with the support mechanism 40 and the like by the third moving mechanism 30 .

In the tool magazine 70, a plurality of types of processing tools formed integrally with the tool holders 12a are held and arranged in a plurality of rows along the Y-axis direction. The processing tool attached to the spindle 11 is replaceable. The tool holder 12a is a portion held by the spindle 11, and may be formed integrally with the processing tool or may be formed separately. In this embodiment, after the processing tool 12 is attached to the tool holder 12a with a chuck, the chuck portion for holding the tool of the spindle 11 holds the tool holder 12a via the tool holder 12a. . However, a processing tool may be attached directly to the spindle 11 . The replacement of the processing tool may be performed by an operator, or may be performed automatically by the processing apparatus 100 .

In the case of automatically exchanging the processing tools, the second moving mechanism 20 and the third moving mechanism 30 move an empty space in the tool magazine 70 in which no processing tools are contained below the spindle 11 . By lowering the main spindle 11 by the first moving mechanism 10 and operating a detachable device such as a chuck provided on the main spindle 11, the processing tool 12 attached to the main spindle 11 is removed and the empty space of the tool magazine 70 is removed. to be placed. Next, the first moving mechanism 10 raises the spindle 11, and the second moving mechanism 20 and the third moving mechanism 30 move the position of the tool magazine 70 where the processing tools 12 to be replaced are arranged below the spindle 11. . Then, the spindle 11 is lowered again by the first moving mechanism 10 and the attachment/detachment device is operated to attach the processing tool 12 to be replaced to the spindle 11 . In addition, the processing tool 12 is, for example, a drill or an end mill.

The electrical unit 80 is mounted inside a space surrounded by a rectangular parallelepiped including the maximum sides of the frame 1 in the XYZ directions. Such an electrical unit 80 controls the processing apparatus 100, and a control section 84a, which will be described later, controls the motor 54 of the first rotation mechanism 50 to rotate the support mechanism 40 around the a-axis. The control unit 84b controls the motor of the second rotation mechanism 60 to tilt the support mechanism 40 around the b-axis, thereby determining the posture of the support mechanism 40. FIG. The control unit 84x also controls the motor 21 of the second moving mechanism 20 to move the main shaft 11 in the X-axis direction, and determines the position of the main shaft 11 in the X-axis direction. The control unit 84y controls the motor of the third moving mechanism 30 to move the support mechanism 40 in the Y-axis direction, and determines the position of the support mechanism 40 in the Y-axis direction. The control unit 84z controls the motor 13 of the first moving mechanism 10 to move the main shaft 11 in the Z-axis direction, and determines the position of the main shaft 11 in the Z-axis direction. Thereby, the relative positions of the main shaft 11 and the support mechanism 40 on the X, Y, and Z axes are determined.

The processing apparatus 100 includes an external terminal 300 equipped with a CPU 310 and a memory 311, as shown in FIG.

Moreover, the processing apparatus 100 of this embodiment is an NC processing apparatus that performs automatic processing under computer control. Specifically, machining data is created by a CAD/CAM system using an external terminal 300 such as a personal computer, and the workpiece W is machined by numerical control based on this data. For this reason, an external terminal such as a personal computer that issues commands to the processing apparatus 100 is communicably connected to the control board of the processing apparatus 100 . The external terminal may create the NC code according to the conditions and send it to the control board. The processing apparatus 100 itself may be provided with a computer equipped with a CPU capable of numerical control, a memory, and a display.

For example, when creating a dental prosthesis with the processing apparatus 100, the data of the dental prosthesis measured by a three-dimensional measuring device is transferred to the CAD/CAM system, and the NC file in which the processing data is applied by the CAD/CAM system. to create Then, based on this NC file, the processing apparatus 100 is controlled to cut the workpiece W with the processing tool 12, thereby producing a dental prosthesis.

FIG. 3 is a perspective view of the state in which the Z-axis drive mechanism is accommodated in the body. The housing portion 400 is provided inside the outer cover 101 of the processing apparatus 100 (see FIG. 1). The tip side of the main spindle 11, the holding section 41, the tool magazine 70, and the like are arranged inside the accommodation section 400 to form a machining space for tools. An opening 401 is formed to allow access to the machining space when the opening/closing door 102 (see FIG. 1) of the exterior cover 101 is opened. Further, an opening 402 is formed on the upper surface side so that the first moving mechanism 10 can move in the X-axis direction.

As shown in FIG. 4, the electrical unit 80 includes a CPU 85 serving as computing means, an input/output port (I/O) 86i, control units 84x, 84y, and 84z for each motor, a control unit 84c for the spindle, and a control unit for the a-axis. 84a and b-axis controllers 84b and the like. The CPU 85 provided on the control board performs various calculations using the memory 86m based on the input data and signals, and outputs the data to the connected control units 84x, 84y, 84z, 84a, 84b, and 84c as servo amplifiers. Sends rotation speed and position instructions.

The I/O 86i is connected to the air blower 87, the dust collector 88, and the tool length sensor 96 of the processing apparatus main body. The air blower 87 blows air to the tool as described above, and the removed chips are collected by the dust collector 88 . A tool length sensor 96 detects the length of the tool and sends a signal to the CPU 85 .

Control units 84 x , 84 y and 84 z for each motor drive the X, Y and Z motors based on commands from the CPU 85 . Encoders are provided in the controllers 84x, 84y, and 84z of the respective motors. The encoder detects, for example, the number of rotations, the rotation angle, and the rotation direction of the rotation shafts of the control units 84x, 84y, and 84z of each motor. Then, the amounts (positions) by which the stages x, y, and z are moved by driving the control units 84x, 84y, and 84z of the respective motors are detected.

The control unit 84c controls a motor (not shown) that rotates the main shaft 11 to control the rotational speed of the main shaft (spindle). The a-axis and b-axis control units 84 a and 84 b drive the a-axis and b-axis motors based on commands from the CPU 85 .

By controlling each part of the processing apparatus 100 by the CPU 85 in this manner, the workpiece W held as described above is processed in a predetermined manner.

In this embodiment, each means and process to be described later are executed on the external terminal 300, but may be executed by providing a display on the processing apparatus 100 itself. In that case, the CPU 85 develops the program in a storage means such as the memory 86m and executes it.

FIG. 5 shows a flow chart of interference check according to an embodiment of the present invention. When the user selects an NC file to be transmitted to the processing apparatus 100 on the external terminal 300, the following interference check flow is executed. In this embodiment, the interference check is performed together with the NC file transmission process, but the external terminal 300 may be provided with a mode in which only the interference check is performed.

In step S100 of FIG. 5, the external terminal 300 clears all stored data of maximum interference amounts 1 to 10 to zero. The maximum interference amount is stored in the external terminal 300 for each tool, and there are as many as the number of tools that the processing apparatus 100 can store. In this embodiment, ten tools are selected.

In step S101, the external terminal 300 reads one line from the selected NC file.

In step S102, the external terminal 300 checks whether G** (** is a number) or M** (** is a number) is included in the row data read out in step S101. ** part is extracted.

In step S103, the external terminal 300 proceeds to the processing of step S104 in the case of circular interpolation or helical interpolation code of G02 and G03. Otherwise, the process proceeds to step S105.

In step S104, the external terminal 300 displays on its display device that an unsupported NC code is being used. After displaying, the interference check process is terminated.

In this embodiment, the G02 and G03 codes are not supported, but if they are supported, a process of calculating the movement trajectory and comparing whether all the movement trajectories are included in the interference area in S131 to be described later is added.

In step S105, the external terminal 300 checks whether specific coordinate data is included in the row data read out in step S101, and extracts the coordinate data. The coordinate data is determined by whether it contains a character string of N**** (N: axis name X, Y, Z, A, B, ****: numerical data). * part is extracted as coordinate data.

In step S106, if the coordinate data extracted in step S105 includes Z-axis data, the external terminal 300 converts the Z-axis data into machine coordinates.

FIG. 6 shows distances used in Z-axis coordinate transformation. In FIG. 6, it is assumed that the Z-axis positions of the spindle 11 and the processing tool 12 are at the origin of the machine. At this time, the meaning of each symbol is as follows.
offset: offset value for converting Z-axis data to machine coordinates hsens: Z-axis distance from tool length sensor 96 to work coordinate 0 mm d0: tool at the machine origin position when the amount of protrusion of the processing tool 12 is 0 Distance drn from the tip to the tool length sensor 96: Distance measurement value from the tool tip to the tool length sensor 96 at the machine origin position when the protrusion amount of the processing tool 12 is n (unit: mm) Zm: Z-axis machine coordinate value Zw : Extracted Z-coordinate data tl: Projection amount of processing tool 12 at present Coordinate transformation of Z-axis data is performed by the following formula.
Zm = Zw + offset
offset = hsens + (d0 - tl)
d0 = (dr35 + dr25)/2 - 30

Here, the current protrusion amount tl of the processing tool 12 may be set by the user as a setting item in advance, or the tool length sensor 96 may be used to measure the tool protrusion. In this embodiment, the tool length sensor reaction position at a tool protrusion amount of 0 mm is calculated by subtracting 30 mm from the average value obtained by measuring the detection positions of the tool length sensor 96 at protrusion amounts of 35 mm and 25 mm in advance. However, the tool length sensor 96 may also be used to measure in advance, or may be measured during the interference check.

In step S107, the external terminal 300 stores the coordinate data read out in step S101 and coordinate-transformed in step S103. Coordinate data to be stored is held for each axis (X, Y, Z, A, B). If the data read in step S101 is not for all axes, the previously stored coordinate data for the missing axes continues to be stored. For example, the data stored last time is (X: 10.0000, Y: 9.0000, Z: -2.0000, A: 10.0000, B: 3.0000), and the data read this time is (X: 12 .0000, Z: 5.0000), the coordinate data to be stored is (X: 12.0000, Y: 5.0000, Z: -2.0000, A: 10.0000, B: 3.0000) become

In step S110, the external terminal 300 compares the coordinate data stored in step S107 with the interference area shown in Table 1. The interference area is set so that the main shaft 11 and the holding part 41 do not interfere with each other even if the axes (X, Y, Z, A, B) are freely operated outside the area. The blanks in Table 1 are −999.9999 for the minimum value and 999.9999 for the maximum value. It is desirable that this numerical value exceeds the maximum stroke of each axis of the processing apparatus 100 . If the stored coordinate data is included in any of the interference areas, the process of step S120 is performed. Otherwise, the process of S130 is performed. For example, the relationship between the main shaft fixed plate of the main shaft 11 and the Y front plate of the third moving mechanism 30, which is the Y-axis moving mechanism, is such that the value of X is fixed, and the range of the value of Z is changed depending on the condition of the value of T. changing. This is because the thick portion at the base of the spindle may interfere, so the prohibited area is increased by the Y value. Also, the relationship between the mounting plate of the disk holder, which is the holding portion 41, and the tool holder 12a is such that three prohibited areas are created for the X and Z values in accordance with the change in the B-axis value. This is because the positive/negative of the X value changes depending on the positive/negative of the inclination of the B axis, and the condition is set when the B axis can be regarded as horizontal. Therefore, it is preferable to set a plurality of prohibited areas depending on the interfering object. Two or more types of prohibited areas are set for an object that moves along the axial direction, and three or more areas are set for an object that rotates in the axial direction. It is preferable to set a prohibited area of By setting a plurality of prohibited areas in this way, it is possible to eliminate the possibility of occurrence of interference without making the prohibited areas too large.

In step S120, the external terminal 300 calculates the amount of interference. Here, the interference amount is obtained by subtracting the Z-axis value of the coordinate data stored in step S107 from the Z-axis maximum value of the interfered area.

In step S121, the external terminal 300 compares the interference amount calculated in step S120 with the maximum interference amount n. n is the tool number in use. If the interference amount is greater than the maximum interference amount n, the process of S122 is performed, and if not, the process of S130 is performed.

In step S122, the external terminal 300 stores the number of rows in which interference occurred, the amount of interference, and the tool number.

In step S130, the external terminal 300 confirms whether the NC file being read is at the end of the file. If it is the end, the process proceeds to step S131. If it is not the end, the process returns to step S100. Thereafter, the processing from step S101 to step S130 is repeated until the end of the NC file is reached.

In step S131, when the external terminal 300 detects interference in the process from step S100 to step S130, it performs the process of step S200. If no interference is detected, the interference check process is terminated.

In step S200, the external terminal 300 determines whether all of the maximum interference amounts 1 to 10 are smaller than the value obtained by subtracting tl from the maximum protrusion amount. If this condition is satisfied, the process proceeds to step S210. If this condition is not satisfied, the display of step S220 is performed.

In step S210, the external terminal 300 displays the number of NC rows in which the maximum amount of interference has occurred on its own display. In this embodiment, the number of NC rows where the maximum amount of interference occurs is displayed, but the first row where interference is detected may be displayed, or all rows where interference is detected may be displayed as a list.

In step S220, the external terminal 300 displays each maximum interference amount on its own display.

In this embodiment, in steps S200 to S220, the display contents are switched according to the magnitude of the maximum interference amount. divided by When the external terminal 300 displays the amount of interference displayed in step S220, the user can avoid the amount of interference by increasing the current protrusion amount of the processing tool 12 by more than the amount of interference.

When the external terminal 300 performs the process of step S210, the user can confirm the number of NC lines displayed and correct the NC file to avoid interference.

As described above, in the processing apparatus of the present embodiment, interference between the spindle 11 and the holding portion 41 can be detected in a simple manner, and apparatus failure due to interference can be prevented. If the mechanical coordinate values of each structure in the accommodation section are known, interference can be prevented in the same manner as in the case of the spindle 11 and the holding section 41 .

When removing the portion in question in the processing apparatus 100, as shown in FIG. 7, the disc-shaped work W is clamped in a C-shape with a part opened instead of being fixed around the entire circumference, and the a-axis is clamped. By moving to a position rotated 90° around (X-axis direction) and processing from directly above with the disk upright, uncut parts are eliminated. That is, the first rotating mechanism 50 rotates the workpiece W by 90° from a position parallel to the XY plane (horizontal position in this embodiment). In some cases, this angle is slightly rotated ±several degrees from the state of 90° for processing.

When using the holding device 41 as shown in FIG. 7, the NC file is checked as follows. A flow chart is shown in FIG. In addition to the interference check, it is also possible to determine whether or not processing is possible based on the type of jig.

In step S<b>300 , the external terminal 300 acquires the model code of the main body processing machine and stores the usable state of the holding device 41 . In this embodiment, the model code is used to determine whether the holding device 41 can be used, but other holding device identification means may be used. In that case, the type of the holding device is acquired from the identification means of the holding device. The CPU 310 functions as an identification unit that identifies the model code.

In steps S301 and S302, the external terminal 300 searches the NC file and searches and acquires the information of the holding device to be used in the NC file. Information on the holding device may be described in a comment text, or a dedicated code may be prepared. Also, when searching, it is desirable to fill in a position near the top of the file.

In steps S310 and S311, the external terminal 300 refers to the usable state of the holding unit 41 acquired in step S300, determines that the C-type holding unit 41 cannot be used, and uses the NC file acquired in steps S301 and S302. When the jig uses the C-shaped holding portion 41, the process proceeds to S320. Otherwise, the process proceeds to step S340. In this embodiment, an example of a processing apparatus that is not compatible with the C-shaped holder 41 has been described. A warning may be issued when the model code is not usable.

In steps S320 and S330, the external terminal 300 displays a warning on the screen of the external terminal 300 and tells the user to use the NC file being read and process it, or waits for the user's input. If the user approves the processing, the process proceeds to step S340, and if the user prohibits the processing, the NC file check processing is terminated and the subsequent processing is not performed. When this flowchart is executed on the processing device 100, a display may be attached to the processing device 100 and displayed there.

In step S<b>340 , the external terminal 300 determines that there is no problem with the NC file, and transmits the file to the processing device 100 . At this time, if the NC file check process is performed on the internal memory of the processing apparatus 100, this step may be omitted.

In step S341, the external terminal 300 uses the NC file transmitted in step S340 to process it.

In this embodiment, the external terminal 300 determines whether or not there is interference based on the model code and the jig used on the NC file. However, a method of detecting interference on the interference check flow of FIG. 5 may also be used.

As described above, in the processing apparatus of the present embodiment, interference between the holding device 41 and the processing tool can be detected from the NC file, and tool breakage can be prevented.

The above-described interference check consists of a spindle that rotates a tool, a holding section that holds an object to be machined by the tool, moving means that relatively moves the spindle and the holding section in a predetermined direction, and a housing that accommodates the holding section. It can be adapted to check interference of each structure in a housing portion of a processing apparatus equipped with a portion.

Although an embodiment has been shown in which the external terminal 300 includes a processing unit that sequentially reads NC files, extracts and processes operation commands for the moving means, and a storage unit that stores a previously stored prohibited area for prohibiting interference. , processing may be performed by a computer in the processing apparatus, or a system may be used in which each function is distributed and processed by a plurality of computers. By checking whether or not the machine coordinate values calculated from the coordinate values on the NC file are included in the prohibited area stored in advance, the processing time can be easily reduced.

REFERENCE SIGNS LIST 10 first movement mechanism 11 spindle 12 processing tool 20 second movement mechanism 30 third movement mechanism 40 support mechanism 41 holding section 50 first rotation mechanism 60 second rotation mechanism 85 CPU
86m memory 100 processing device 200 air compressor 300 external terminal 310 CPU
311 memory

Claims (6)

a spindle that holds and rotates a tool;
a holding part that holds an object to be machined by the tool;
moving means for relatively moving the main shaft and the holding portion in a predetermined direction;
An interference check device for checking interference between structures in the housing portion of a processing apparatus comprising a housing portion housing the holding portion,
a processing unit that sequentially reads NC files and extracts and processes operation commands for the moving means;
A storage unit that stores information on prohibited areas for prohibiting interference in advance,
The interference check device, wherein the processing unit checks whether or not the machine coordinate values calculated from the coordinate values on the NC file are included in the prohibited area. and an identification unit that identifies the type of the holding unit,
2. The interference check device according to claim 1, wherein the processing unit extracts information about the type of the holding unit included in the NC file, and checks whether or not the information by the identifying unit is different. storing a plurality of prohibited areas each having a different area in the storage unit;
The prohibited area is selected from a plurality of prohibited areas to be checked for interference when the information obtained by the identifying section and the information about the type of the holding section included in the NC file by the processing section are different. The interference check device according to claim 1. A program that causes a computer to function as the processing unit of the interference check device according to any one of claims 1 to 4. a spindle that holds and rotates a tool;
a holding part that holds an object to be machined by the tool;
moving means for relatively moving the main shaft and the holding portion in a predetermined direction;
An interference check method for checking interference between structures in the housing portion of a processing apparatus including a housing portion that houses the holding portion,
a step of sequentially reading NC files and extracting operation commands for the moving means;
and a step of checking whether or not the machine coordinate values calculated from the coordinate values on the NC file are included in a previously stored prohibited area for prohibiting interference. a spindle that holds and rotates a tool;
a holding part that holds an object to be machined by the tool;
moving means for relatively moving the main shaft and the holding portion in a predetermined direction;
An interference check system for checking interference between structures in the housing portion of a processing apparatus including a housing portion that houses the holding portion,
a processing means for sequentially reading an NC file and extracting and processing an operation command for the moving means;
a storage means for pre-storing information on prohibited areas for prohibiting interference;
An interference check system, wherein the processing means checks whether or not the machine coordinate values calculated from the coordinate values on the NC file are included in the prohibited area.

Images