CN110087828B

CN110087828B - Information processing apparatus and processing failure determination method

Info

Publication number: CN110087828B
Application number: CN201780078011.3A
Authority: CN
Inventors: 西胁健二
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2017-06-06
Filing date: 2017-06-06
Publication date: 2020-09-08
Anticipated expiration: 2037-06-06
Also published as: CN110087828A; JP6366875B1; JPWO2018225159A1; WO2018225159A1

Abstract

The information processing device (1) is characterized by comprising a processing failure determination unit (13), wherein the processing failure determination unit (13) determines a processing failure part of a processing object on the basis of an image feature quantity (40) calculated on the basis of image data obtained by imaging the processing object after processing, and determines a part of a processing program (2) in which an operation for processing the processing failure part is described on the basis of the image feature quantity (40) and a program feature quantity (41) calculated on the basis of the processing program (2) for processing the processing object.

Description

Information processing apparatus and processing failure determination method

Technical Field

The present invention relates to an information processing apparatus and a machining failure specifying method for specifying a machining failure portion of a machining target.

Background

The numerical control device reads and executes a numerical control machining program in which a movement command for moving the object to be machined or the machining tool along a predetermined path is described, thereby changing the relative positions of the object to be machined and the machining tool and machining the object to be machined. In the above-described machining, a machining defect may occur in the object. The machining failure is caused by, for example, a deviation of the machining tool from a desired position with respect to the object due to an abnormality in the nc machining program or the control data, or by generation of vibration called chattering between the machining tool and the object. The defective machining due to chatter vibration is also referred to as chatter marks. When a machining defect occurs, it is necessary to identify a portion where the machining defect occurs and a factor causing the machining defect, and to improve the portion so that normal machining is performed.

Patent document 1 discloses a technique of constantly monitoring the state of a machining center as a machine tool and identifying a cause of a machining failure based on monitoring data and image data obtained by imaging a machining surface of a machining target. Here, the monitored data are a current value of the conveyance motor, a current value of the spindle head, vibration temperatures at a plurality of portions of the machine body, and the like.

Patent document 1: japanese patent laid-open publication No. 2007-190628

Disclosure of Invention

However, according to the technique described in patent document 1, it is necessary to always monitor the state of the machine tool. Further, when the machining program needs to be corrected in order to solve the machining defect, it is necessary to perform simulation to identify a portion in the machining program that needs to be corrected, which causes a problem that it takes time to solve the machining defect.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an information processing apparatus and a processing failure determination method that can reduce the time taken to resolve a processing failure when the processing failure occurs.

In order to solve the above-described problems and achieve the object, an information processing apparatus according to the present invention includes a processing failure specifying unit that specifies a processing failure portion of a processing target object based on an image feature amount calculated from image data obtained by imaging the processing target object after processing, and specifies a portion of a processing program in which an operation of processing the processing failure portion is described based on the image feature amount and a program feature amount calculated from the processing program for processing the processing target object

ADVANTAGEOUS EFFECTS OF INVENTION

The information processing device according to the present invention achieves the effect that, when a machining defect occurs, the time taken to resolve the machining defect can be reduced.

Drawings

Fig. 1 is a diagram showing a configuration of an information processing apparatus according to embodiment 1 of the present invention.

Fig. 2 is a diagram showing command positions calculated by the program feature calculating unit shown in fig. 1.

Fig. 3 is a diagram showing program features calculated by the program feature calculating unit shown in fig. 1.

Fig. 4 is a diagram showing image data read by the image reading unit shown in fig. 1.

Fig. 5 is a diagram of image feature quantities calculated from the image data shown in fig. 4.

Fig. 6 is a diagram showing a display screen displayed by the display unit shown in fig. 1.

Fig. 7 is a flowchart showing an operation of the information processing apparatus shown in fig. 1.

Fig. 8 is a diagram showing a configuration of an information processing apparatus according to embodiment 2 of the present invention.

Fig. 9 is a diagram showing a display screen displayed on the display unit shown in fig. 8 to indicate the cause of the machining defect.

Fig. 10 is a flowchart showing an operation of the information processing apparatus shown in fig. 8.

Fig. 11 is a diagram showing a configuration of an information processing apparatus according to embodiment 3 of the present invention.

Fig. 12 is a diagram showing a state of variation in the positional relationship between the imaging device and the object, which images the image data processed by the information processing apparatus shown in fig. 11.

Fig. 13 is a diagram showing a hardware configuration of an information processing apparatus according to embodiments 1 to 3 of the present invention.

Detailed Description

Next, an information processing apparatus and a machining defect determination method according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the present embodiment.

Embodiment 1.

Fig. 1 is a diagram showing a configuration of an information processing apparatus 1 according to embodiment 1 of the present invention. The information processing device 1 performs a process of specifying a machining failure occurring in a machining target object machined by a machining tool. Specifically, the information processing device 1 can specify a defective portion in processing of the object and a portion in the processing program in which an operation for processing the defective portion is described, using the processing program 2 for processing the object by changing the relative position between the processing tool and the object and the image data 24 obtained by imaging the object. The object to be processed is also referred to as a workpiece.

The information processing device 1 includes a program instruction reading unit 3, a program feature amount calculation unit 4, an image reading unit 5, an image feature amount calculation unit 6, a matching unit 8, a machining failure determination unit 13, and a display unit 9.

The program command reading unit 3 reads the machining program 2 composed of a plurality of blocks, and inputs the program command to the program feature amount calculation unit 4. The program feature value calculation unit 4 calculates a feature value indicating a shape of the object after machining for each block of the machining program 2 based on the input machining program 2. The program feature value 41 is an edge shape including the edge 32 of the object and the edge 33 of the processing shape, a line length, a curvature, a processing direction, a pitch width, and the like of each block, which are calculated from the command position. The program feature amount calculation unit 4 inputs the calculated program feature amount 41 to the comparison unit 8.

Fig. 2 is a diagram showing the command position 35 calculated by the program feature calculating unit 4 shown in fig. 1. The machining program 2 has a plurality of command positions 35 described therein, which indicate the shape of the machined object. FIG. 2 shows a gas turbine engine^WX、^WY、^WThe three axes Z define a plurality of command positions 35 in three-dimensional space. Fig. 3 is a diagram showing the program feature 41 calculated by the program feature calculating unit 4 shown in fig. 1. The program feature 41 includes a command position 35, an edge 32 of the object to be processed, and an edge 33 of the processed shape.

The image reading unit 5 reads image data 24 obtained by imaging a processing surface of the processing object, and inputs the read image data 24 to the image feature amount calculation unit 6. The image data 24 read by the image reading unit 5 may be a part of moving image data. The image feature amount calculation unit 6 analyzes the image data 24 input from the image reading unit 5, and calculates the feature amount of the image. The image feature amount 40 is calculated by using an image analysis method such as edge detection and binarization. The image feature amount calculation unit 6 inputs the calculated image feature amount 40 to the matching unit 8.

Fig. 4 is a diagram showing image data 24 read by the image reading unit 5 shown in fig. 1. The image data 24 includes a part of the object to be processed, but the image data 24 may include the entire object to be processed. Fig. 5 is a diagram showing the image feature 40 calculated from the image data 24 shown in fig. 4. The image feature value 40 indicates an edge shape including the edge 32 indicating the outer periphery of the object, the edge 33 of the processing shape, and the edge 34 of the processing defective portion, a processing direction, a pitch width, and the like.

The matching unit 8 matches the program feature amount 41 input from the program feature amount calculation unit 4 with the image feature amount 40 input from the image feature amount calculation unit 6, and matches the portion of the object to be processed in the image data 24 with the portion of the processing program 2 describing the operation of processing the portion. The comparison unit 8 compares the edge 32 indicating the outer periphery of the object calculated as the program feature 41 with the edge 32 indicating the outer periphery of the object calculated as the image feature 40, and specifies a portion where the features match, so that the program feature 41 corresponds to the image feature 40. Alternatively, the comparison unit 8 may perform comparison using characteristic quantities other than the edge 32, such as the scanning line direction of processing, the pitch width, and the edge 33 of the processed shape. The comparison unit 8 may perform comparison using a plurality of types of feature values. When the entire object is imaged in the image data 24, the matching unit 8 preferably performs matching using the edge 32 indicating the outer periphery of the object. When only a part of the object to be processed is captured in the image data 24, the matching unit 8 preferably performs matching using characteristic quantities such as the edge 33 and pitch width of the processed shape. The matching unit 8 may determine that the feature amounts match when the difference in feature amounts falls within a predetermined error range.

When the correspondence between the image data 24 and the machining program 2 is known in advance, the matching unit 8 may receive an input of information indicating the correspondence from the user and perform matching based on the received information. Alternatively, the comparison unit 8 may output a plurality of candidates to allow the user to select the correspondence between the object of the image data 24 and the machining program 2 when a plurality of matching feature amounts are found as a result of the comparison.

The machining failure specifying unit 13 specifies the position of a machining failure portion in the object to be machined based on the image feature amount 40, and specifies a portion in the machining program 2 in which an operation of machining the machining failure portion is described based on the image feature amount 40 and the program feature amount 41. The machining failure specifying unit 13 specifies the edge 34 of the machining failure portion based on the image feature amount 40. For example, in the case of cutting, the machined surface may not be a flat surface, and a boundary between a plurality of cut surfaces formed by cutting may be formed. The convex portion formed at the boundary is referred to as a Cusp cut (Cusp). When the machined surface is machined well, the height of the cut portion becomes uniform, and if edge detection is performed based on the image data 24, the uniform value is detected. When the machined surface includes a defective machined portion, the image feature value 40 such as the height of the cut portion is different from that of a good machined surface. After the position of the defective processing portion is specified, the defective processing specifying unit 13 specifies a portion in the processing program 2 in which an operation of processing the defective processing portion is described, using the comparison result of the comparison unit 8. The machining failure specifying unit 13 inputs the position information of the machining failure portion and the portion in the machining program 2 in which the operation of machining the machining failure portion is described to the display unit 9.

The display unit 9 generates a display screen based on the input information, and displays the generated display screen on the display device. Fig. 6 is a diagram showing a display screen displayed by the display unit 9 shown in fig. 1. Fig. 6 is an upper view showing the image data 24 superimposed with the edge 32 of the object to be processed and the edge 34 of the processing failure portion, which are the image feature amounts 40, and the processing failure specifying portion 36. In the lower part of fig. 6, a machining block 31 in which a machining failure specifying portion is superimposed on a three-dimensionally displayed diagram of the command position 35 as the program feature amount 41 is shown. The display unit 9 may display a plurality of diagrams shown in fig. 6 on 1 display screen, or may display a plurality of diagrams shown in fig. 6 on a plurality of display screens, respectively. In fig. 6, only the machining defect specifying portions and the machining blocks of the machining defect specifying portions are illustrated in 1 part, but when a plurality of machining defect portions are specified, the plurality of machining defect specifying portions may be superimposed on the image data 24 to be shown, and when the machining blocks of the plurality of machining defect specifying portions are compared, the plurality of machining blocks may be superimposed on the image data 24 to be shown.

Fig. 7 is a flowchart showing an operation of the information processing apparatus 1 shown in fig. 1. First, the program command reading unit 3 acquires the machining program 2, and the image reading unit 5 acquires the image data 24. The program command reading unit 3 inputs the acquired machining program 2 to the program feature calculating unit 4, and the image reading unit 5 inputs the acquired image data 24 to the image feature calculating unit 6 (step S11). The image feature amount calculation unit 6 calculates the image feature amount 40 from the input image data 24 (step S12). The program feature amount calculation unit 4 calculates the program feature amount 41 from the input machining program 2 (step S13).

The comparison unit 8 compares the program feature amount 41 and the image feature amount 40, and associates a portion of the object to be processed in the image data 24 with a portion of the processing program 2 in which an operation of processing the portion is described. At this time, the comparing unit 8 sets a comparison range, which is a comparison target with the image feature 40, in the program feature 41, and compares the program feature 41 and the image feature 40 in the comparison range (step S14). The checking unit 8 determines whether or not the corresponding feature amount is specified (step S15). When the corresponding feature amount cannot be specified (No in step S15), the collating unit 8 changes the comparison range of the program feature amount 41 (step S16), and executes step S14 again. Note that, although not shown, if there is no candidate for the comparison range, it is determined that there is no correlation between the machining program 2 and the image data 24, and the processing is terminated.

When the corresponding feature amount is specified (Yes in step S15), the machining failure specifying unit 13 specifies a defective part by using the image feature amount 40 (step S17). The machining failure specifying unit 13 specifies a machining block of the machining failure specifying unit. The machining failure specifying unit 13 inputs the machining blocks of the machining failure specifying unit and the machining failure specifying unit to the display unit 9 (step S18). The display unit 9 outputs the machining defect specifying portion and the machining program block of the machining defect specifying portion (step S19).

As described above, according to embodiment 1 of the present invention, based on the image data 24 obtained by imaging the object and the machining program 2 for machining the object by changing the relative positions of the machining tool and the object, the position of the machining defective portion of the object and the portion of the machining program 2 in which the operation of machining the machining defective portion is described can be specified. With this configuration, when a machining defect occurs, the part of the machining program 2 that causes the machining defect is identified, and therefore, the time taken to remove the machining defect can be reduced.

Embodiment 2.

Fig. 8 is a diagram showing a configuration of the information processing apparatus 10 according to embodiment 2 of the present invention. The same components as those of the information processing apparatus 1 according to embodiment 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

The information processing device 10 includes a program instruction reading unit 3, a program feature amount calculation unit 4, an interpolation unit 11, a motor control unit 12, a control data feature amount calculation unit 15, an image reading unit 5, an image feature amount calculation unit 6, a matching unit 8, a machining defect determination unit 13, a cause determination unit 14, and a display unit 9.

The program command reading unit 3 inputs the read machining program 2 to the interpolation unit 11 and the program feature value calculation unit 4. The interpolation unit 11 interpolates the read command position of the machining tool indicated by the machining program 2 for each block, and inputs the interpolated command position to the motor control unit 12 and the control data feature amount calculation unit 15. The motor control unit 12 controls a transport device for moving a machining tool or a table on which an object to be machined is mounted, based on the interpolated command position. The conveying device moves the position of the processing tool or the object to be processed, so that the relative position of the processing tool and the object to be processed is changed, and the object to be processed is processed by the processing tool. The motor control unit 12 inputs a feedback position indicating a position at which the machining tool or the table is actually moved to the control data feature value calculation unit 15 based on the interpolated command position. The interpolated command position and feedback position are also referred to as control data.

The program feature calculating unit 4 calculates a program feature 41 from the machining program 2, and inputs the calculated program feature 41 to the comparing unit 8. The control data feature amount calculation unit 15 calculates a control data feature amount, which is a feature amount of the control data, based on the control data including the interpolated command position and feedback position, and inputs the calculated control data feature amount to the comparison unit 8. The control data characteristic quantities are an interpolated command position, a feedback position, an actual feed speed which is a moving speed of the machining tool, a moving direction of the machining tool, a pitch error correction quantity, an error correction quantity of a servo motor, machining pattern information, an ideal passing speed, a curvature radius, and the like.

The program feature value 41 and the image feature value 40 are input to the matching unit 8, and the control data feature value is output. The matching unit 8 matches the program feature 41 and the image feature 40, and similarly matches the image feature 40 and the control data feature, and associates a portion of the object to be processed in the image data 24 with control data for processing the portion. The cause specification unit 14 specifies the cause of the machining failure based on the image feature amount 40 and the control data feature amount. Specifically, the cause specification unit 14 specifies the control data feature amount corresponding to the machining failure portion as the control data feature amount that causes the machining failure. The cause specification unit 14 may further analyze the control data feature amount corresponding to the machining failure portion, and may screen the control data feature amount that causes the machining failure. For example, the cause determination unit 14 compares the actual feed speed, which is the moving speed of the machining tool, with the ideal passing speed, and checks whether or not the actual feed speed exceeds the ideal passing speed. The cause specification unit 14 may also compare the control data feature amount corresponding to the machining failure portion with the control data feature amount corresponding to the portion other than the machining failure portion, and specify the control data feature amount indicating a tendency different from that of the portion other than the machining failure portion. The cause specification unit 14 outputs the control data feature amount specified as the cause of the machining failure as machining failure factor data. The cause specification unit 14 may analyze a measure for solving the machining defect based on the machining defect cause data. When the actual feed speed is too high and causes the machining defect, the cause specification unit 14 can output a machining condition of reducing the feed speed of the machining tool as a countermeasure for solving the machining defect.

The display unit 9 can further display a display screen indicating the cause of the machining failure, a display screen indicating a countermeasure for canceling the machining failure, and the like. Fig. 9 is a diagram showing a display screen 42 displayed on the display unit 9 shown in fig. 8 to indicate the cause of the machining defect. The display screen 42 shows the image data 24 superimposed on the actual feed speed. The solid arrow 43 indicates that the actual feeding speed is higher than the preset threshold value, and the broken arrow 44 indicates that the actual feeding speed is lower than the preset threshold value. The display unit 9 may present a countermeasure for relieving the machining defect on the display screen 42. For example, when chatter marks are generated in a defective machining portion, the display unit 9 changes the spindle rotation speed as a measure to be provided. The display unit 9 can project the control data feature amount on the image data 24 to display the control data feature amount in accordance with the imaging angle of the image data 24 for the object.

Fig. 10 is a flowchart showing an operation of the information processing apparatus 10 shown in fig. 8. The information processing device 10 performs the operation shown in fig. 10 in addition to the operation shown in fig. 7.

The control data feature amount calculation unit 15 calculates the feature amount of the control data (step S30). The matching unit 8 matches the control data feature value with the image feature value 40, and determines whether or not the control data feature value matches the image feature value 40 (step S31). If the control data feature amount does not match the image feature amount 40 (No in step S31), the collating unit 8 changes the comparison range of the control data feature amount (step S32) and repeats the processing in step S31. When the control data feature value and the image feature value 40 match each other (Yes in step S31), the cause specification unit 14 specifies the cause of the machining failure, generates machining failure factor data, and outputs the generated machining failure factor data (step S33). The display unit 9 presents a machining failure countermeasure based on the machining failure factor data output from the factor specifying unit 14 (step S34).

As described above, according to the information processing device 10 according to embodiment 2 of the present invention, in addition to the effects achieved by the information processing device 1 according to embodiment 1, it is possible to specify control data that causes a machining failure. Only the portion of the machining program 2 in which the operation of machining the portion that becomes defective in machining is described is specified, and it may take time to determine how to correct the machining program 2. In embodiment 2, it is possible to determine what state the control data is in when a machining defect has occurred, and how the machining defect can be removed, and therefore it is possible to further reduce the time taken to remove the machining defect.

Embodiment 3.

Fig. 11 is a diagram showing a configuration of an information processing apparatus 100 according to embodiment 3 of the present invention. The information processing apparatus 100 further includes an image position calculation unit 7 in addition to the configuration of the information processing apparatus 10 according to embodiment 2.

The image position calculating unit 7 obtains information for specifying the position in the object to be processed of the image data 24, such as the attachment position of the camera, the rotation angle of the table or the processing tool to which the object to be processed is fixed, and the focal length at the time of image capturing, from the camera that captures the image data 24. The image position calculation unit 7 calculates the position of the entire processing object captured by the image data 24 based on the acquired information.

Fig. 12 is a diagram showing a variation in the positional relationship between the imaging device 53 and the object to be processed, which images the image data 24 processed by the information processing device 100 shown in fig. 11. Example 1 example 50 shows a case where the camera 53 is set to fixed coordinates. After machining, the object is stored in the view angle of the camera 53, and the machined surface of the object is photographed. In this case, since the position of the camera 53 is fixed, the position of the object at the time of imaging can be calculated. Example 2 a 51 shows a case where a camera 53 is attached to a spindle 54 to which a machining tool is attached. Since the camera 53 moves together with the spindle 54, the information processing apparatus 100 can calculate the position of the camera 53. The image position calculating unit 7 can calculate the coordinate system of the image data 24 based on the focal length from the camera position to the processing surface, the mounting angle and the mounting position of the camera 53. Here, when the object to be processed is fixed and the spindle 54 to which the processing tool is attached moves, the conveyance device that moves the spindle 54 can display the movement of the spindle 54 so that the camera 53 and the object to be processed do not come closer than the shortest distance of the focal length. In this case, collision between the camera 53 and the object to be processed can be avoided, and a situation in which the camera 53 and the object to be processed are too close to each other to be able to take a picture in focus can be avoided.

Example 3 52 shown in fig. 12 shows a case where the image data 24 is captured using the camera 53 which is not fixed. When the image is manually captured, the image can be captured at a free position and angle. For example, it is possible to set built-in GPS data and camera initial position, and grasp the position and angle at the time of shooting by a built-in acceleration sensor, acceleration, and the like. The image position calculation unit 7 can calculate the coordinate system of the processing surface of the processing object based on the position, angle, and focal length at the time of imaging. Fig. 12 shows a hybrid tilting structure, but the mechanical structure to which the present invention can be applied is not limited to table tilting, tool tilting, 3-axis mechanism, and the like.

Note that, although not shown, not only the image position is calculated based on the position of the camera 53, but also the captured image may be captured together with the processed surface of the object by describing the contents of knowing the coordinates or the scale, for example, the coordinate direction, or the contents of knowing the coordinates or the scale such as the ruler. By knowing the size or the line-of-sight direction of the processed surface captured by the coordinate system or the scale reflected in the image data 24, the feature amounts of the processing program 2 and the processed surface can be more accurately matched.

Fig. 13 is a diagram showing a hardware configuration of the

information processing apparatuses

1, 10, and 100 according to embodiments 1 to 3 of the present invention. The memory 61 is a storage unit that stores a computer program executed by the processor 62 and data generated during execution of the computer program. The memory 61 is a nonvolatile or volatile semiconductor memory such as a ram (random Access memory), a rom (read Only memory), a flash memory, or a magnetic disk. The processor 62 is a processing circuit that reads out and executes a computer program stored in the memory 61. The processor 62 is a cpu (central Processing unit), a Processing device, an arithmetic device, a microprocessor, a microcomputer, a dsp (digital Signal processor), or the like. The display device 63 is a liquid crystal display device, an organic EL (Electro-Luminescence) display device, or the like.

The function of the display unit 9 can be realized by the processor 62 reading out and executing a computer program stored in the memory 61 to control the display device 63. The functions of the program instruction reading unit 3, the program feature amount calculation unit 4, the image reading unit 5, the image feature amount calculation unit 6, the comparison unit 8, the machining defect determination unit 13, the interpolation unit 11, the motor control unit 12, the control data feature amount calculation unit 15, the cause determination unit 14, and the image position calculation unit 7 can be realized by reading out a computer program stored in the memory 61 by the processor 62 and executing the computer program.

The configurations described in the above embodiments are merely examples of the contents of the present invention, and may be combined with other known techniques, and a part of the configurations may be omitted or modified without departing from the scope of the present invention.

Description of the reference symbols

1. 10 of the number of the first and second groups of, 100 an information processing device, 2 a processing program, 3 a program instruction reading section, 4 a program feature amount calculating section, 5 an image reading section, 6 an image feature amount calculating section, 7 an image position calculating section, 8 a comparing section, 9 a display section, 11 an interpolating section, 12 a motor control section, 13 a processing failure determining section, 14 a cause determining section, 15 a control data feature amount calculating section, 24 an image data, 31 a processing program block of a processing failure determining section, 32 an edge of a processing object, 33 an edge of a processing shape, 34 an edge of a processing failure section, 35 an instruction position, 36 a processing failure determining section, 40 an image feature amount, 41 a program feature amount, 42 a display screen, 43 an arrow of a solid line, 44 an arrow of a broken line, 50 th example 1, 51 nd example 2, 52 rd example 3, 53 a camera, 54 a main shaft, 61 a memory, 62 a processor, 63 a display device.

Claims

1. An information processing apparatus characterized in that,

comprising:

a processing failure determination unit that determines a processing failure portion of a processed object based on an image feature amount calculated from image data obtained by imaging the processed object, and determines a portion in the processing program in which an operation of processing the processing failure portion is described based on the image feature amount and a program feature amount calculated from a processing program for processing the processed object;

a control data feature value calculation unit that calculates a control data feature value that is a feature value of control data input to a transport device for changing a relative position of the object to be processed and the processing tool when the processing program is executed; and

and a cause specification unit that specifies the control data feature amount that causes the machining failure based on the control data feature amount and the image feature amount of the machining failure portion.

2. The information processing apparatus according to claim 1, further comprising:

a program feature amount calculation unit that analyzes the machining program and calculates the program feature amount;

an image feature amount calculation unit that analyzes the image data to calculate the image feature amount; and

and a matching unit that matches the program feature amount and the image feature amount to match a portion of the object to be processed in the image data with a portion of the processing program describing an operation of processing the portion.

3. The information processing apparatus according to claim 1 or 2,

the cause specification unit compares the control data feature amount with the image feature amount, associates a portion of the object to be processed in the image data with the control data for processing the portion, and specifies the control data feature amount that causes the processing failure.

4. The information processing apparatus according to claim 3,

the cause specification unit selects the control data feature amount that causes the machining failure from among the plurality of types of control data feature amounts corresponding to the machining failure portion.

5. The information processing apparatus according to claim 4,

the cause specifying unit screens the control data feature amount that causes the machining failure based on a result of comparison between the control data feature amount corresponding to the machining failure portion and the control data feature amount corresponding to a portion other than the machining failure portion.

6. The information processing apparatus according to claim 1 or 2,

the cause determination unit calculates a processing condition for canceling the processing failure based on the control data feature amount, and generates the control data for canceling the processing failure based on the processing condition.

7. The information processing apparatus according to claim 1 or 2,

the image processing apparatus further includes a display unit that displays at least either a screen on which the image feature amount and the positional information of the defective processing portion are superimposed on the image data or a screen on which the positional information of the defective processing portion is superimposed on the program feature amount.

8. The information processing apparatus according to claim 7,

the display unit displays the program feature amount or a control data feature amount, which is a feature amount of control data input to a transport device for changing the relative position when the machining program is executed, by projecting the program feature amount or the control data feature amount onto the image data in accordance with an imaging angle of the image data with respect to the machining target.

9. The information processing apparatus according to claim 1 or 2,

the image processing apparatus further includes an image position calculating unit that specifies a position in the object of processing of the image data based on position information and focal length information of a camera that captures the image data.

10. A method for specifying a machining defect of a machining object by an information processing device,

the method for determining a processing defect is characterized by comprising the following steps:

acquiring a program feature amount calculated from a machining program for machining the object to be machined;

acquiring an image feature amount calculated from image data obtained by imaging the processed object;

identifying a defective portion of the processing object based on the image feature amount;

determining a portion in the machining program in which an operation of machining the machining defective portion is described based on the program feature amount and the image feature amount;

calculating a control data feature value of control data input to a transport device for changing a relative position between the object to be processed and the processing tool when the processing program is executed; and

and a step of determining the control data feature amount which causes the machining failure based on the control data feature amount and the image feature amount of the machining failure portion.

11. The method of determining a processing defect according to claim 10,

further comprising the step of obtaining the image data,

when the image data is captured, the distance between the imaging device that captures the image data and the object to be processed is limited to be longer than the focal length of the imaging device.