WO2010073294A1

WO2010073294A1 - Interference checking device

Info

Publication number: WO2010073294A1
Application number: PCT/JP2008/003912
Authority: WO
Inventors: 丹賀澤博道
Original assignee: 三菱電機株式会社
Priority date: 2008-12-24
Filing date: 2008-12-24
Publication date: 2010-07-01

Abstract

There is provided an interference checking device capable of simply setting, for example, a jig shape used in interference checking for preventing collisions between machine structures. The interference checking device comprises a jig model setting processing unit (21). The jig model setting unit (21) newly generates a jig model (17) by combining a plurality of primitive basic components stored in advance. The jig model setting unit (21) also retrieves the dimensions and attachment position of a jig actually securing a work and actually measured by a sensor that measures the coordinate position of an actual machine structure, modifies the jig model (17) based on the retrieved values, and changes the attachment position of the jig.

Description

Interference check device

The present invention provides a machine-machine, machine-tool, machine-jig, tool when moving a machine structure by controlling a machine tool manually or automatically by means of a numerical control (NC) device. -Interference check for determining whether interference occurs between jigs or the like based on a three-dimensional model (3-dimensional model, hereinafter referred to as 3D model) obtained by modeling a mechanical structure. More specifically, the present invention relates to a technique for easily setting a jig model which is one element constituting a 3D model used for interference check.

In order to prevent the collision between machine structures, the conventional NC device is a machine that consists of a machine model, a tool model, a jig model, and a work model. Whether or not to interfere is determined using 3D model data obtained by modeling the structure. The interference check determination unit determines whether or not to interfere, and if the interference is detected, the axis movement is stopped.

FIG. 7 is a block diagram showing a main part of a conventional NC device, in which 1 is a movement control unit, 2 is an axis control unit, 3 is an axis movement amount output circuit, 4 is a servo control unit, and 5 is a servo motor. is there. Reference numeral 6 denotes an interference check determination unit, 7 denotes a 3D model update processing unit, and 8 denotes a display unit. The display unit includes a screen display processing unit 9, a 3D monitor 10, and a model data setting unit 11. Reference numeral 12 denotes an input unit, and 13 denotes a storage unit. The storage unit 13 includes a machine model 15, a tool model 16, a jig model 17, and a

work model

18, and 3D model data 14 serving as original data for generating a 3D model, and a machine structure that changes in real time. 3D model space information 19 for stereoscopic display is stored.
The 3D model space information 19 is a machine structure model corresponding to an actual machine structure generated based on each data of the machine model 15, the tool model 16, the jig model 17, and the work model 18.

The machine model 15 that is a part of the machine structure is a structure that defines the structure, tool attachment coordinates, jig attachment coordinates, etc. that move with the shape, arrangement, and axis movement of the machine structure. Information created by a CAD / CAM system outside the NC unit is input from the input unit 12. As a result, the machine interference determination area is automatically determined by a predetermined procedure in the NC apparatus.

The tool model 16 which is a part of the machine structure is used to model a tool, and includes information such as a tool type such as a flat end mill and a ball end mill, tool dimension data such as a tool length, and a tool diameter. . These pieces of information are input for each tool from the model data setting unit 11 by an operator's operation, whereby the interference determination area of each tool is automatically determined by a predetermined procedure inside the NC unit.

A jig model 17 which is a part of the mechanical structure is used to model a jig used to hold a workpiece. The NC model device 11 is previously configured by the operator to operate the NC device. This is defined by designating an object having a desired shape from the jigs having a standard shape registered in, and inputting necessary dimensions, attachment positions, attachment angles, and the like. Thereby, the interference determination area | region of each jig | tool is automatically determined by the procedure predetermined inside NC apparatus.

Furthermore, the work model 18 which is a part of the mechanical structure is for modeling a work, and has a standard shape registered in advance in the NC apparatus from the model data setting unit 11 by the operation of the operator. This is defined by designating a workpiece having a desired shape from the workpiece and inputting necessary dimensions, mounting positions, mounting angles, and the like. Thus, the workpiece interference determination area is automatically determined by a predetermined procedure in the NC apparatus.

The machine structure corresponding to the actual machine structure is converted into a 3D model by using the machine model 15, tool model 16, jig model 17, and workpiece model 18 data input to the storage unit 13 as described above. By updating the modeled 3D model space information 19 in synchronization with the machine movement, the 3D modeled mechanical structure is displayed on the 3D monitor unit 10 on the display unit 8 as a two-dimensional display or a three-dimensional display, and interference check is performed. The basic data.

The movement control unit 1 generates a movement signal for driving a machine (not shown). An axis movement signal input by an operator operating an operation button from an operation panel (not shown), or via the input unit 12 or the display unit 8. Based on the analysis result of the input or generated machining program, the axis control unit 2 generates a movement amount per unit time of each control axis so that the machine draws a desired locus, and sends it to the axis movement amount output circuit 3. Output. The movement amount per unit time is output to the servo control unit 4 and converted into electric power by each of the

axis control units

4a, 4b... To drive the

servo motors

5a, 5b.

At the same time, the movement control unit 1 inputs the movement amount of each axis (for example, the movement amount per unit time during manual operation and the segment amount of the program trajectory during automatic operation) to the interference check determination unit 6. At the same time, the amount of movement of each axis is input to the 3D model update processing unit 7, and the 3D model update processing unit 7 makes the 3D model space information 19 so that the machine structure as 3D model data has the latest shape. Is updated in real time with the amount of movement per unit time. The latest shape of this machine structure is stored in the storage unit 13 as 3D model space information 19 and displayed on the machine structure as a two-dimensional display or a three-dimensional display viewed from an arbitrary viewpoint by the screen display processing unit 9 in the display unit 8. It is converted into data and displayed in the area of the 3D monitor 10. With this machine structure display, the operator can confirm the movement of the machine on the display unit 8 without moving the machine.

The interference check determination unit 6 determines whether or not the machine structures are based on the interference determination area output from the storage unit 13, the coordinate values of the machine structure, the axis movement amount input from the movement control unit 1, and the like. It is checked whether interference occurs between the machine, the machine-tool, the machine-jig, and the tool-jig, and the determination result is output to the movement control unit 1. If the determination result is “interference”, the output of the axis movement amount is stopped, and if the determination result is “non-interference”, the output of the axis movement amount is continued, and the

servo motors

5a, 5b through the

servo control units

4a, 4b. ... is driven, and the workpiece is machined by moving the tool and the workpiece relatively. Accordingly, the movement on the display is stopped during the simulation (program check) of the machining program, and the machine movement is also stopped if the machine is moving. Although not shown, when a determination result “interference” is output, a message for notifying the determination result and the interference target is stored in the storage unit 13, and the display unit 8 is connected via the screen display processing unit 9. A notification message indicating interference is displayed above.

As another background art, a workpiece or jig is centered using a measuring means (see, for example, Document 1), and a detection target object is determined based on position data of the detection target object output from a contact detector. One that corrects the position of the CAD model of the work target object to be included (for example, see Document 2), one that reads the shape of the model or workpiece with a measuring means, and generates a cutting path for the tool based on this data (for example, see Document 3) There is.

Japanese Patent Laid-Open No. 7-1281 Japanese Unexamined Patent Publication No. 4-340605 Japanese Unexamined Patent Publication No. Hei 8-90416

The setting method of the jig model 16 in the conventional NC device is to select a desired jig from the shapes of jigs registered in advance and define all parameters for this shape. Therefore, there is a drawback that it is not possible to cope with any jig other than the registered jig.

Further, since the model according to the setting method is in accordance with the drawing, there is a problem that the model (parameter) may not always match the reality due to an installation error by the operator, a missing jig, or the like.

The present invention has been made to solve such a problem, and refers to the most basic component used to express a large structure constituting a jig model in a device. ) Are stored, and the machine operator can easily combine them using this part and enter the required information such as dimensions to form an arbitrary jig. An object of the present invention is to obtain an interference check device that can be arbitrarily arranged on an object.

Also, when the workpiece is fixed with each jig, it is not always assembled in the position and orientation as shown in the drawing, so an object is to obtain an interference check device that can set parameters according to the actual jig. It is said.

The present invention has been made to solve the above-mentioned problems. Machine components such as a machine model, a tool model, and a jig model are recorded as 3D model data, respectively, and actual data is based on the 3D model data. A storage unit that stores 3D model space information generated for stereoscopically displaying a machine structure model corresponding to the machine structure, and 3D that updates the 3D model space information in real time with data for controlling machine movement A model update processing unit, and a 3D monitor unit that checks whether the mechanical structures interfere with each other based on the 3D model space information updated by the 3D model update processing unit, and displays the check status in 3D In the interference check apparatus provided, the jig model for newly generating the jig model by combining basic parts stored in advance. It is provided with a Le setting processing unit.

Further, the present invention records machine components such as a machine model, a tool model, a jig model, etc. as 3D model data, and a machine structure model corresponding to an actual machine structure based on the 3D model data. A storage unit for storing 3D model space information generated for stereoscopic display, a 3D model update processing unit for updating the 3D model space information in real time by data for controlling machine movement, and the 3D model update In the interference check device including a 3D monitor unit that checks whether or not the machine structures interfere with each other based on the 3D model space information updated by the processing unit, and displays the check status in 3D, the actual check Take in the dimensions of the jig that actually fixes the workpiece, measured by the sensor that measures the coordinate position of the machine structure, and import this Based on the above, a jig model that generates a new jig model by deforming and combining at least one or more basic parts stored in advance to match the shape of the jig that actually fixes the workpiece A setting processing unit is provided.

Further, the present invention records machine components such as a machine model, a tool model, a jig model, etc. as 3D model data, and a machine structure model corresponding to an actual machine structure based on the 3D model data. A storage unit for storing 3D model space information generated for stereoscopic display, a 3D model update processing unit for updating the 3D model space information in real time by data for controlling machine movement, and the 3D model update In the interference check apparatus provided with a 3D monitor unit for checking whether or not the machine structures interfere with each other based on the 3D model space information updated by the processing unit and displaying the check status in 3D, the jig A model is newly generated by combining at least one or more basic parts stored in advance into any shape. In both cases, the mounting position of the jig that actually fixes the workpiece, which is actually measured by the sensor that measures the coordinate position of the actual mechanical structure, is captured, and the mounting of the jig model is performed based on the captured value. A jig model setting processing unit for correcting the position is provided.

Further, the present invention records machine components such as a machine model, a tool model, a jig model, etc. as 3D model data, and a machine structure model corresponding to an actual machine structure based on the 3D model data. A storage unit for storing 3D model space information generated for stereoscopic display, a 3D model update processing unit for updating the 3D model space information in real time by data for controlling machine movement, and the 3D model update In the interference check device including a 3D monitor unit that checks whether or not the machine structures interfere with each other based on the 3D model space information updated by the processing unit, and displays the check status in 3D, the actual check Take in the dimensions of the jig that actually fixes the workpiece, measured by the sensor that measures the coordinate position of the machine structure, and import this And generating a new jig model by combining at least one or more basic parts stored in advance so as to match the shape of the jig that actually fixes the workpiece, A jig model setting processing unit that takes in the mounting position of the jig that actually fixes the workpiece measured by the sensor and corrects the mounting position of the jig model based on the acquired value is provided. is there.

According to the present invention, since a machine operator can create a jig model of an arbitrary shape by combining a plurality of primitive part models stored in advance, a wide variety of jigs other than the standard shape at the processing site. This has the effect of improving productivity.

Further, according to the present invention, the coordinate value information can be captured by applying a touch sensor, and correction and registration can be performed with the actual position and actual dimensions of the jig. Interference check can be performed and productivity is improved.

It is a block diagram which shows the principal part of NC apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows the jig | tool model production | generation operation | movement of the jig | tool model setting process part which concerns on Embodiment 1 of this invention. It is a flowchart which shows the jig | tool model correction operation | movement of the jig | tool model setting process part which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows an example of the basic component shape of 3D model which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the measuring method using the touch sensor at the time of the rectangular parallelepiped arrangement | positioning which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the measuring method using the touch sensor at the time of the cylinder arrangement | positioning which concerns on Embodiment 1 of this invention. It is a block diagram which shows the example of 1 structure of the conventional NC apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Movement control part 2 Axis control part 3 Axis movement amount output circuit 4 Servo control part 5 Servo motor 6 Interference check judgment part 7 3D model update process part 8 Display part 9 Screen display process part 10 3D monitor 11 Model data setting part 12 Input Part 13 Storage part 14 3D model data 15 Machine model 16 Tool model 17 Jig model 18 Work model 19 3D model space information 21 Jig model setting processing unit 22 Touch sensor position calculation means 23 Jig model arrangement position calculation means 24 Tool model registration means 25 Basic parts storage means

Embodiment 1 FIG.
Hereinafter, an embodiment in which the interference check device according to the present invention is applied to a numerical control device will be described with reference to FIGS.
FIG. 1 is a block diagram showing the main configuration of an NC apparatus according to Embodiment 1 of the present invention. In FIG. 1, 1 is a movement processing unit, 2 is an axis control unit, 3 is an axis movement amount output circuit, and 4 is The servo control unit 5 is a servo motor. 6 is an interference check determination unit, 7 is a 3D model update processing unit, and 8 is a display unit. The display unit includes a screen display processing unit 9, a 3D monitor 10, and a model data setting unit 11. Reference numeral 12 denotes an input unit, and 13 denotes a storage unit. The storage unit 13 includes a machine model 15, a tool model 16, a jig model 17, and a

work model

18, and 3D model data 14 serving as original data for generating a 3D model, and an actual machine structure that changes in real time. 3D model space information 19 for displaying the image three-dimensionally is stored.
The 3D model space information 19 is a machine structure model corresponding to an actual machine structure generated based on each data of the machine model 15, the tool model 16, the jig model 17, and the work model 18.
Reference numeral 21 denotes a jig model setting processing unit which is the main gist of the present invention, and includes a touch sensor position calculation means 22, a jig model arrangement position calculation means 23, a jig model registration means 24, and a basic part storage means 25.

The machine model 15 which is 3D model information of a machine tool defines a structure that moves with the shape, arrangement, and axis movement of a machine structure, tool attachment coordinates, jig attachment coordinates, and the like. The machine model 15 is generally created by a CAD / CAM device outside the NC device, and 3D model information of a machine tool as a machine structure is input from the input unit 12. As a result, the machine interference determination area is automatically determined by a predetermined procedure in the NC apparatus.

The tool model 16 which is a part of the machine structure is used to model a tool, and includes information such as a tool type such as a flat end mill and a ball end mill, tool dimension data such as a tool length, and a tool diameter. . These pieces of information are input from the model data setting unit 11 for each tool, whereby the interference determination area of each tool is automatically determined by a predetermined procedure inside the NC apparatus.

The jig model 17 which is a part of the mechanical structure is for modeling a jig used for holding a workpiece. Usually, the basic model storage means is previously set by the model data setting unit 11. This is defined by designating a desired shape from the standard shape jigs registered in 25 and inputting the necessary dimensions, mounting position, mounting angle, and the like. Thereby, the interference determination area | region of each jig | tool is automatically determined by the procedure predetermined inside NC apparatus.

Furthermore, the workpiece model 18 which is a part of the mechanical structure is for modeling the workpiece, and is selected from a workpiece having a standard shape registered in advance in the NC apparatus by the model data setting unit 11. This is defined by designating a workpiece of the shape and inputting the necessary dimensions, mounting position, mounting angle, and the like. Thus, the workpiece interference determination area is automatically determined by a predetermined procedure in the NC apparatus.

The jig model setting processing unit 21 includes a touch sensor position calculation unit 22, a jig model arrangement position calculation unit 23, a jig model registration unit 24, and a basic part storage unit 25. When using in an ideal form, the above operations are sufficient, but if you want to use a jig other than the standard shape, the jig mounting position is misaligned, or part of the jig is missing. If you want to use a non-standard shape or a non-ideal jig, the conventional one cannot be used to specify the shape or set the mounting position. .

When it is desired to use a jig that can be defined by a plurality of parts (parts) other than the standard shape, the jig model setting processing unit 21 in the jig model setting processing unit 21 as shown in FIG. A desired shape as a base is selected from basic component storage means 25 storing so-called primitive shapes such as a rectangular parallelepiped, a cylinder, a triangular prism, etc., an attachment reference point is designated, and dimensions of each part are input. This attachment reference point is used when the jig is arranged on a machine table or the like. Subsequently, the shape of the part to be mounted on the set jig is selected from the basic component storage means 25, the mounting position on the jig is designated, and the dimensions of each part are input. By repeating these steps, a jig configured by combining arbitrary basic parts such as a rectangular parallelepiped, a cylinder, and a triangular prism can be created. The jig model registration means 24 assigns a registration number to the new jig model and additionally registers it in the jig model 17 in the 3D model data 14. If there are other jigs other than the required standard shape, a new jig model is similarly generated and registered.
The details will be described later with reference to FIG.

Also, if the jig is not used as planned (when the jig mounting position is shifted, etc.), the machine can be moved manually by the operator while the workpiece is actually fixed. Measure the component surface of the jig with the touch sensor. Specifically, a coordinate position that constitutes a predetermined surface for determining the actual position of the jig is read. Based on these data, the actual mounting position, mounting angle, and actual shape are calculated and obtained, and the actual information is obtained to correct the registration information.

The operator operates the machine and applies touch sensors to a plurality of predetermined positions necessary for measurement, and captures data at each position. The touch sensor position calculation means 22 calculates the position of the contact point from the coordinate value information of the touch sensor brought into contact with each surface of the jig fixing the workpiece placed on the machine. The jig model arrangement position calculation means 23 is an arrangement position of the jig model based on a plurality of contact point coordinate values of the touch sensor, for example, coordinate information and inclination information for defining each surface in the case of a rectangular parallelepiped part, If the center position of the circular cross-section is a complex of these, information defining these is read as the touch position of the touch sensor and calculated. The jig model registration means 24 registers a jig model (part model) based on the jig model arrangement position calculation result.
Details of this will be described later with reference to FIG.

The movement control unit 1 generates a movement signal for driving a machine (not shown), and is input via an axis movement signal input by an operator operating an operation button from an operation panel (not shown), the input unit 12 or the display unit 8. Alternatively, based on the result of analyzing the generated machining program, the axis control unit 2 generates a movement amount per unit time of each control axis so that the machine draws a desired locus and outputs it to the axis movement amount output circuit 3 To do. The movement amount per unit time is output to the servo control unit 4, and the power of each

axis control unit

4a, 4b,... Is amplified to drive the

servo motors

5a, 5b,. *

At the same time, the movement control unit 1 inputs the movement amount of each axis (for example, the movement amount per unit time during manual operation and the segment amount of the program trajectory during automatic operation) to the interference check determination unit 6. At the same time, the amount of movement of each axis is input to the 3D model update processing unit 7, and the 3D model update processing unit 7 sets the 3D model space information so that the machine structure as 3D model data has the latest shape. Update in real time with the amount of movement per unit time. The latest shape of the mechanical structure is stored in the 3D model space information 19 in the storage unit 13, and is displayed as a two-dimensional display or a stereoscopic (3D) view from an arbitrary viewpoint by the screen display processing unit 9 in the display unit 8. It is converted into display data of the object and displayed in the area of the 3D monitor 10. With this machine structure display, the operator can confirm the movement of the machine on the display unit 8 without moving the machine.

The interference check determination unit 6 uses the 3D model space information 19 and the amount of axial movement input from the movement control unit 1 to make mechanical structures, that is, machine-machine, machine-tool, machine-jig, tool- It is checked whether or not interference occurs between the jigs, and the determination result is output to the movement control unit 1. If the determination result is “interference”, the output of the axis movement amount is stopped, and if the determination result is “non-interference”, the output of the axis movement amount is continued, and the

servo motors

5a, 5b through the

servo control units

FIG. 2 is a flowchart showing a procedure for creating a jig model other than the standard and general shapes by combining basic parts (parts) stored in the NC apparatus by the jig model setting processing unit 21.
First, in step 21 (hereinafter abbreviated as S21), for example, a rectangular parallelepiped and a cylinder shown in FIG. A list of basic parts such as the shape of the composite part model group configured by the above is displayed on the display unit 8, and a basic part (part) to be used is selected from the list of basic parts.

In S22, the dimensions of each part of the selected part are designated and set to a desired size. Subsequently, in S23, the mounting position of this part on the jig body is designated. However, if this is the first time in this process and the selected item is a jig body (for example, when two parts are combined to form a jig, the base part) can be omitted. In S24, the mounting angle of the part to the jig body is designated. If there is no designation of the mounting angle, it shall be created on a coordinate system parallel to the rectangular coordinate system of the jig body. Also in this case, when the first selected process is the jig body, it is created on the rectangular coordinate system of this basic part, and the mounting angle can be omitted.

In S25, the part shape displayed on the display unit 8 is visually confirmed to confirm whether or not the dimensions, the mounting position, and the mounting angle regarding the basic part selected this time have been set correctly. If correction is necessary, the process returns to S22, S23, and S24 to correct the data. If the setting has been performed correctly, the process proceeds to S26 to store the setting data for the selected basic part.

In S27, it is determined whether or not all the basic parts to be assembled to the jig body have been prepared. If there are other parts to be assembled, the process returns to S21 to set a new basic part. If all of them are prepared, it is assumed that the generation of the jig body has been completed. The process proceeds to S28, and the jig model registration means 24 uses the jig model registration means 24 as the jig model to set the jig model data 17 in the 3D model data 14. And the generation of the 3D model data of the non-standard shape jig is completed.
For example, when a jig is configured by combining two parts, the first processing (processing of the jig body) performs the processing of S21, S22 (S24 if necessary), S25, S26, and the second processing ( In the process of mounting other components on the jig body, the process of S28 is performed after the processes of S27 and S21 to S26.
The designation of the reference point for mounting the jig on the machine model 15 is input in an appropriate step before registration as a jig model (S28).

In the above embodiment, the case of registering and setting jigs other than the standard shape by combining basic parts has been described for setting the jig model, but the basic parts have the same configuration as the jig. You may make it set arbitrary molding material workpieces other than a rectangular parallelepiped or a cylinder by combining.

Next, a method for correcting registration information using a touch sensor for a jig that has already been registered in the storage unit 13 will be described with reference to FIG.
First, a jig model to be corrected is selected by specifying a registration number (step 01, hereinafter abbreviated as S01). By this selection, the 3D machine structure to which the selected jig model is assigned is displayed on the display unit 8. Subsequently, the control axis is moved so that the touch sensor comes into contact with a desired position on the predetermined surface (S02). At this time, the position recognized by the NC device is not the position of the touch point of the touch sensor but the center position of the touch sensor.

For example, in the rectangular parallelepiped in FIG. 5, the touch sensor is moved in the surface direction in the order of A and B to make contact. Assuming that the radius of the touch sensor is (r), it is on the line A′B ′ parallel to the line segment AB in the direction of movement before contact and perpendicular to the line segment AB by the radius (r) of the touch sensor. Becomes the AB plane.
Next, the touch sensor is moved and brought into contact with the C surface direction, and a surface that is perpendicular to the line segment A′B ′ and separated by the radius (r) of the touch sensor in the moving direction before the contact is the C surface.

The reading button on the jig model setting processing unit 21 of the display unit 8 is pressed to instruct reading of the contact point coordinate position (S03). At this time, the touch sensor position calculation means 22 calculates the position of the contact point from the coordinate value information of the touch sensor brought into contact with each surface of the jig fixing the workpiece placed on the machine, If the tool model arrangement position calculation means 23 is a jig model arrangement position based on a plurality of touch point coordinate values of the touch sensor, for example, if it is a rectangular parallelepiped part, coordinate information and inclination information defining each surface, and if it is a cylindrical part, If the center position of the circular cross-section is a complex of these, information defining these is read as the touch position of the touch sensor and calculated. The operator waits until the measurement completion display of the contact point appears on the display unit 8 in S04, and proceeds to S05 when the measurement is completed.

Since each jig has different planes and measurement positions and points depending on the shape of the jig, the operator determines whether or not the measurement of the contact points necessary for the jig has been completed in S05. The measurement work of S02 to S04 is executed until the measurement of the above is completed. The rectangular parallelepiped has, for example, two faces + width + height as shown in FIG. 5, and the cylinder has all the contact points necessary for the jig, for example, three points on the circumference + height according to FIG. When the data is taken in, the operator determines that the jig state is fixed, and determines the jig rearrangement data (S06). Further, in S07, the jig model registration unit 24 registers and corrects the jig model with the determined relocation data in the storage unit 13. That is, if the data to be corrected is data related to the jig mounting position, the jig mounting coordinate value of the machine model 15 is corrected. If the data to be corrected is data related to the jig model itself, Make corrections.

Next, when the current shape of the jig is changed from the original shape registered first, the jig shape is finely adjusted. Also in S08, it is determined whether or not to perform fine adjustment based on the operator's judgment. If fine adjustment is to be performed, the process proceeds to S09 with "YES", and the coordinate position corresponding to the shape change is measured. In S10, the correction contents are displayed on the changed portion of the original data for fine adjustment using the measured position data. Display on the unit 8, and return to S07 according to the operator's instruction to perform correction registration of the jig model.
If there is no need for fine adjustment in S08, the process proceeds to S11 with "NO".

In S11, the operator determines whether or not other parts constituting the jig are to be measured, and if it is necessary to perform measurement, the process returns to S02 to measure other parts (parts). If the measurement has been completed for all the parts that need to be measured, it is determined “NO”, and the process is terminated.

In the above description, when measuring a rectangular parallelepiped jig or component, if one surface in the longitudinal direction perpendicular to the table on which the workpiece is placed is determined, the mounting angle is also determined. In the case of a cylindrical jig or component, as shown in FIG. 6, the center position can be specified from at least two points on the circumference if the approach direction of the sensor is taken into consideration, but in this embodiment, the center position is A method of measuring the positions of three points on the circumference that can be uniquely determined shall be used.

In the above-described embodiment, the case where the interference check is performed by the numerical control device which is a substantially final control device in the production system from the construction program generation to the machining is described. Needless to say, the interference check may be performed before the device. Therefore, the present invention is not limited to the numerical control device.
Moreover, although what used the measurement data of a touch sensor as a sensor was demonstrated, you may use the measurement data of a non-contact-type sensor.
Further, in the above-described embodiment, the model data setting unit 11 and the jig model setting processing unit 21 are illustrated separately, and when creating a jig model other than the basic shape, only the jig model setting processing unit 21 is used. The case of generating by using the model data has been described. However, for the dimension input or the like, a function possessed by the model data setting unit 11 may be used, and the model data setting unit 11 is incorporated into the jig model setting processing unit 21. It is good.

The interference check device according to the present invention interferes between a machine-machine, a machine-tool, a machine-jig, a tool-jig, and the like when a machine structure is moved by controlling a machine tool by a numerical control device. This is suitable for checking in advance.

Claims

Machine components such as machine models, tool models, and jig models are recorded as 3D model data, and the machine structure model corresponding to the actual machine structure is displayed three-dimensionally based on the 3D model data. A storage unit for storing the 3D model space information generated to perform the update, a 3D model update processing unit for updating the 3D model space information in real time with data for controlling machine movement, and an update by the 3D model update processing unit In the interference check device having a 3D monitor unit that checks whether or not the mechanical structures interfere with each other based on the 3D model space information, and displays the check status in 3D, the jig model is stored in advance. An interference check device comprising a jig model setting processing unit newly generated by combining the basic parts.
Machine components such as machine models, tool models, and jig models are recorded as 3D model data, and the machine structure model corresponding to the actual machine structure is displayed three-dimensionally based on the 3D model data. A storage unit for storing the 3D model space information generated to perform the update, a 3D model update processing unit for updating the 3D model space information in real time with data for controlling machine movement, and an update by the 3D model update processing unit In the interference check device having a 3D monitor unit that checks whether or not the machine structures interfere with each other based on the 3D model space information and displays the check status in 3D, the coordinates of the actual machine structure Take in the dimensions of the jig that actually fixes the workpiece, measured by the sensor that measures the position, and based on this value, Interference check device provided with a jig model setting processing unit that generates a new jig model by deforming and combining the stored basic parts to match the shape of the jig that actually fixes the workpiece .
Machine components such as machine models, tool models, and jig models are recorded as 3D model data, and the machine structure model corresponding to the actual machine structure is displayed three-dimensionally based on the 3D model data. A storage unit for storing the 3D model space information generated to perform the update, a 3D model update processing unit for updating the 3D model space information in real time with data for controlling machine movement, and an update by the 3D model update processing unit In the interference check device having a 3D monitor unit that checks whether or not the mechanical structures interfere with each other based on the 3D model space information, and displays the check status in 3D, the jig model is stored in advance. Sensors that are newly generated by combining the basic parts that are used, and that measure the coordinate position of the actual machine structure Interference check provided with a jig model setting processing unit that takes in the measured mounting position of the jig that actually fixes the workpiece and corrects the mounting position of the jig model based on the acquired value. apparatus.
Machine components such as machine models, tool models, and jig models are recorded as 3D model data, and the machine structure model corresponding to the actual machine structure is displayed three-dimensionally based on the 3D model data. A storage unit for storing the 3D model space information generated to perform the update, a 3D model update processing unit for updating the 3D model space information in real time with data for controlling machine movement, and an update by the 3D model update processing unit In the interference check device having a 3D monitor unit that checks whether or not the machine structures interfere with each other based on the 3D model space information and displays the check status in 3D, the coordinates of the actual machine structure Take in the dimensions of the jig that actually fixes the workpiece, measured by the sensor that measures the position, and based on this value, A new jig model is generated by combining the stored basic parts so that they match the shape of the jig that is actually fixing the workpiece, and the workpiece is actually fixed as measured by the sensor. An interference check apparatus comprising a jig model setting processing unit that takes in a mounting position of a jig that is being used and corrects the mounting position of the jig model based on the acquired value.