KR101507683B1 - Smart numerical control system and Method thereof - Google Patents

Abstract

The present invention relates to a smart numerical control system which includes a tool and holder measuring unit (110) for measuring shapes of a tool and a holder; a material measuring unit (120) for measuring the shape of the material; a cutting unit (140) that performs cutting of the material and includes a tool, a holder and a transfer system and a servo motor for transferring them; a machining control unit (150) that controls the operation of the cutting unit (140); a simulator (210) that receives shape information on the tool, the holder and the material measured from the tool and holder measuring unit (110) and the material measuring unit (120), and performs simulated machining by using the received shape information on the tool, the holder and the material and input NC data; a collision region sensing unit (220) for calculating a position at which there is possibility of a collision among the tool, the holder and the material along each axis of the input jog during a jog input from a user using the measured shape data of the tool, the holder, and the material; and a central control unit (240) that transmits the measured shape information on the tool, the holder and the material and the NC data, to the simulator (210) and the machining control unit (150) to execute the operation, and transmits the collision-possible position calculation result of the collision region sensing unit (220) to the machining control portion (150) during input of the jog. The machining control unit (150) performs the control so as to prevent the cutting section (140) from moving to the collision-possible position, when receiving the collision-possible position calculation result of the collision region sensing unit (220) by the input of jog.

Description

[0001] Smart numerical control system and method [0002]

The present invention relates to a numerical control system, and more particularly, to a numerical control system that prevents collision between a tool and a holder, a workpiece, and an NC machine when the workpiece is automatically machined, or when a tool and a holder are manually operated, And to a smart numerical control system for enhancing the quality.

A numerical control (NC) system is a means for machining a workpiece using a numerical control (NC) machine. The machining program is operated in accordance with the input NC data to move the tool and holder of the NC machine, To a desired shape. In such a numerical control system, not only the demands for high-speed, high-precision machining but also the prevention of collision between tools, holders, materials, and NC machines are of great interest.

In order to prevent the collision between the tool and the holder and the material and the NC machine, in the past, a simulation (simulation) was performed before the machining operation to check whether or not the tool collided. The shape of the NC machine creates modeling data and uses the created modeling data. However, in the case of pre-simulation, the worker manually measures the material, the tool and the holder, inputs the measurement data to a separate computer, performs a simulation operation to verify the collision, and if the machining is possible, Transfer the data to process the material. However, when a worker erroneously measures a workpiece or a tool, a measurement error is generated because the worker erroneously sets a work or a tool, etc., and a difference arises between the simulation environment and the actual machining environment, There is a problem that there is a problem. In addition, when automatic machining is performed using the NC data input for NC machine operation control, if the NC data is written without considering the characteristics of the machine, or if it is erroneously written, the NC machine may collide with the tool, There arises a problem that collision occurs.

In order to solve such a problem, a technique of predicting a collision by performing a simulation in real time while processing a material is being introduced. For example, Korean Patent Laid-Open Publication No. 2011-0114147 (published on October 19, 2011) A technique for predicting a collision between a transfer system and a tool and a workpiece (workpiece) by analyzing feedback data transmitted from a servo mechanism for controlling the movement of the tool is disclosed. When there is excessive cutting condition considering the rotation speed or when the machining condition is exceeded through real-time monitoring, a collision detection signal is generated and displayed to the user.

However, in such a real-time simulation, there arises a problem that the time required for judging the tool position and for judging or predicting whether there is a collision between the tool and the workpiece and the NC machine takes longer than the moving time of the actual tool. Therefore, it is possible not to predict or determine the collision before the collision but to predict or determine the collision after the actual collision.

On the other hand, an NC machine is not always operated according to a machining program based on NC data. Instead, when setting the position of a workpiece or a tool before machining the workpiece, moving the tool or the like to the origin, In the case of such a manual operation, the tool or the like is moved by the operation of the operation unit or the like. However, since a computer for controlling the operation of a tool or the like transporting system can not predict at what time and place the operation of the operation unit is currently operated by the operator, there arises a problem that the collision can not be detected in advance.

In order to solve such a problem, in Japanese Unexamined Patent Application Publication No. 2007-249671 (published on September 28, 2007), a current position of a tool or the like is read and a planned locus of movement of a tool or the like is calculated with respect to a movement axis, And the tool or the like is prevented from moving to the collision position.

However, in the case of the above-described technique, in order to detect the current position, the shape and size of the tool, the position of the tool, the shape and the size of the workpiece must be measured and input to the computer. So that the accuracy of the collision prediction can be reduced.

On the other hand, only information such as the shape and size of the tool is input in the conventional manual work or automatic work, and the information such as the shape and size of the holder fixing the tool is changed due to the delay of the working time, The holder which moves together with the tool may also be able to collide with the workpiece.

In this way, in the case of the conventional art, it is possible to precisely prevent or predict the collision that may occur in the automatic operation and the manual operation due to the manual operation of measuring the shape, size and position of the tool and the material, The problem can not be solved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide a method and apparatus for automatically setting the shape and size of a tool and a holder and a work, The object of the present invention is to provide a smart numerical control system and method capable of precisely predicting a collision that may occur during automatic operation and manual operation by reducing the errors that may occur in measurement of position and setting of tools and materials .

In addition, the present invention provides a simulator in the system, and the shape and size information of the automatically measured tools, holders and workpieces can be interlocked with the simulator, thereby making it possible to more precisely process the workpiece and prevent or predict collision more accurately A smart numerical control system and method are provided.

According to an aspect of the present invention, there is provided a smart numerical control system comprising: a tool and a holder measurement unit for measuring a shape of a tool and a holder; A material measurement unit 120 for measuring the shape of the material; A cutting processing unit 140 for performing a cutting process of the material and including the tool and holder, a transfer system for transferring the tool and the holder, and a servo motor; A processing control unit 150 for controlling the operation of the cutting processing unit 140; And receives shape information of the tool, holder, and workpiece measured from the tool and holder measurement unit 110 and the workpiece measurement unit 120, and receives shape information of the received tool and holder material, input NC machine shape information, and NC data A simulator 210 for performing simulated processing using the simulator 210; A collision area sensing unit 220 for calculating a possible collision position between the tool and the holder and the workpiece using the measured tool and the shape information of the holder and the workpiece according to each axis of the jog input from the user during jog input; And transmits the shape information and NC data of the measured tool, holder, and workpiece to the simulator (210) and the machining control unit (150) to perform an operation. When the jog input is performed, And a central control unit 240 for transmitting a possible position calculation result to the machining control unit 150. The machining control unit 150 receives a collision possible position calculation result of the collision area sensing unit 220 by jog input It is possible to prevent the cutting processing unit 140 from moving to the collision possible position.

The tool and holder measurement unit 110 measures the tool and the holder in a state that the tool and the holder are set on the transfer system. The tool and holder measurement unit 110 measures the position, length L and diameter D of the tool, A probe for measuring shape information including the position (R) of the holder and measuring the shape information including the position, the length (L1 to L4) and the diameter (d1 to d4) of the holder is applied.

The material measuring unit 120 measures the material while the material is placed on the bed, and the material measuring unit 120 is a three-dimensional scanner that measures shape information including a position and a size.

The simulator 210 compares the received shape information of the tool and the holder with the input NC data to confirm whether the tool mounted on the holder corresponds to the tool set in accordance with the machining order, If the tool is set according to the machining order, simulation is performed. Otherwise, a signal is sent to the central control unit 240 to display an alarm to the user to reset the tool.

The cutting processing unit 140 is capable of moving in five axes, and the jog is capable of inputting five axes.

When there is an input of any one of the five axes from the jog, the collision area sensing unit 220 uses the shape information of the tool and the holder to calculate an expected movement trajectory in the axial direction to be moved from the current position of the tool and the holder Of the intersection between the tool and the holder, the material, and the NC machine from among the intersections between the tool and the work and the NC machine from the current position calculated by the axial anticipated movement calculating section 222, A collision possible position calculation unit 224 for computing an intersection and recognizing the collision position as a collision possible position, and a movement limit range calculating unit 224 for calculating a movement limit range of the cutting unit 140 so that the tool and the holder do not move to the collision- And an operation unit 226.

The machining control unit 150 includes a movement limit range setting unit 152 for setting the movement limit range information by the movement limit range calculation unit 226 in the cutting process unit 140, And an operation stopping portion 154 for stopping the operation of the cutting processing portion 140 when the cutting portion 140 moves out of the movement limit range. The machining control unit 150 further includes a collision signal generating unit 156 that transmits a collision signal to the central control unit 240 when the cutting processing unit 140 moves beyond the movement limit range, The control unit 240 generates an alarm signal so that the user can know when the collision signal is received from the collision signal generating unit 156.

According to another aspect of the present invention, there is provided a smart numerical control method comprising the steps of: a) measuring shape of a workpiece and receiving shape information of an NC machine; b) receiving and setting NC data when there is a machining instruction from the user; c) measuring the shape of the tool and the holder; d) comparing the shape information of the tool and the holder with the NC data to confirm whether the tool mounted on the holder corresponds to a tool set in accordance with the machining order; e) performing a simulation when the tool mounted on the holder corresponds to a tool set in accordance with the machining sequence, and if not, displaying an alarm to the user to reset the tool; f) in the event of a collision between the tool and the holder and the workpiece and the NC machine during the simulation, an alarm indication is issued and the user takes action; g) machining the material in the event that collision between the tool and the holder and the workpiece and the NC machine does not occur during the simulation; And h) calculating a possible collision position between the tool, the holder and the workpiece, and the NC machine using the tool, holder, workpiece, and shape information of the NC machine measured along each axis of the jog input from the user, And setting the tool and the holder not to move to the collision possible position when the jog movement is performed.

The step h) includes: h1) measuring the shape of the tool and the holder when the jog input signal is present; h2) calculating an expected movement locus of the tool and the holder in the axial direction of the input jog using the shape information of the tool and the holder; h3) calculating an intersection closest to the current position of the tool and the holder among the intersections between the tool, the holder, the workpiece, and the NC machine among the anticipated movement trajectories and grasping it as a collision possible position; h4) calculating a movement limit range and setting it so that the tool and the holder do not move to the collision possible position; h5) stopping the operation of the tool and the holder to prevent further movement in the axial direction when the tool and the holder move out of the movement limit range according to the jog movement; And h6) when the tool and the holder move out of the movement limit range in accordance with the jog movement, displaying an alarm to the user.

According to the present invention, it is possible to automatically measure the shape of a tool, a holder and a workpiece, to confirm whether or not the tool and the holder are properly mounted, and to automatically link the shape information of the tool and the holder and the workpiece . Thus, by measuring the size and position of the tool and the holder and the workpiece, and by reducing the errors that may occur when setting the tool and the workpiece, it is possible to precisely predict the collision that may occur during the automatic operation and the manual operation have. In addition, it is possible to eliminate the inconvenience that the operator has to input the shape measurement and data in the conventional manner.

As a result, according to the present invention, it is possible to predict collision more precisely, thereby enhancing the reliability of the quality, and eliminating the need for manual labor by the user, thereby increasing the productivity of the work.

1 is a block diagram of a smart numerical control system according to a preferred embodiment of the present invention;
2 is a conceptual explanatory diagram for measuring the shape of a tool,
3 is a conceptual explanatory diagram for measuring the shape of the holder,
Fig. 4 and Fig. 5 are conceptual explanatory diagrams for calculating the collision-enabled position and the movement limit range,
6 is a flowchart of a smart numerical control method according to a preferred embodiment of the present invention.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. Hereinafter, a smart numerical control system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, a smart numerical control system 10 according to a preferred embodiment of the present invention includes an NC machine 100 and an NC computer 200. The NC computer 200 controls the operation of the NC machine 100 by the NC data so that the NC machine 100 can control the operation of the workpiece, Work to the desired shape and shape. As used herein, the term 'automatic operation' means that the NC machine 100 operates according to the set operation sequence by the NC data. Meanwhile, the 'NC' machine 100 is not always operated by automatic operation. In the 'manual operation' used in the present specification, when setting the position of a workpiece or a tool before machining the workpiece, , It means that it is operated by manual operation in the case of test processing.

The NC machine 100 specifically includes a tool and holder measurement unit 110, a workpiece measurement unit 120, a cutting processing unit 140, and a machining control unit 150. Although not shown, the NC machine 100 is provided with a bed on which a workpiece is placed. On the other hand, the shape information of the NC machine 100 is input through the input unit 250.

The tool and holder measuring unit 110 measures the shape of the tool and the holder. According to a preferred embodiment of the present invention, the tool and the holder measuring unit 110 is applied with a probe for measuring a three-dimensional shape. Here, the shape includes the current position of the tool and the holder, and the three-dimensional size information. The tool and holder measuring unit 110 measures the tool and the holder with the control command of the central control unit 240 of the NC computer 200 to be described later set in the transfer system. By applying a probe capable of measuring the three-dimensional shape of the tool and holder measuring unit 110, the length L and the diameter D of the tool 142 as well as the corner rounding R can be obtained as shown in FIG. And the lengths (L1 to L4) and diameters (d1 to d4) of the holder 144 can be precisely measured as shown in Fig. Referring to FIG. 3, a plurality of various holders 144a to 144d can be applied according to the size and shape of the tool 142 to be fitted. According to the present invention, the holders having various sizes and shapes can be precisely measured . The measured information is transmitted to the central control unit 240 through the processing control unit 150.

Conventionally, when the operator manually measures the length and diameter of the tool while the tool and the holder are set on the transfer system, the operator manually inputs the length and diameter of the tool through the input unit 250 of the NC computer 200, do. In this case, there has been an inconvenience in manually confirming whether a tool conforming to the set T number has been used. Also, only the length and diameter of the tool can be confirmed, and the corner rounding (R) of the tool can not be measured as in the present invention.

According to a preferred embodiment of the present invention, the workpiece measuring unit 120 may measure the shape and size of the workpiece by a control command of the central control unit 240. The workpiece measuring unit 120 may include a scanner scanner is applied. The material measuring unit 120 measures the material in a state in which the material is placed on the bed by a control command of the central control unit 240. [ In this way, the shape of the material is measured while being cut on the bed, so that it is possible to measure the precise current position and three-dimensional size of the material. The measured information is transmitted to the central control unit 240 through the processing control unit 150.

Conventionally, the shape and size of the material are measured from the outside and then set on the bed of the NC machine 100. In this case, since the coordinates of the position are manually calculated and input, the accurate position of the material And difficulty in recognizing the angle.

As described above, the tool and holder measurement unit 110 and the material measurement unit 120 according to the present invention can automatically measure a tool, a holder, and a workpiece, and can measure shape information such as an accurate position and size , It is possible to reduce the error that may occur due to the manual measurement of the worker and also to reduce the troubles such as the worker's daily measurement, and the productivity is improved. According to the present invention, since the measured shape information is automatically transferred to the central control unit 240 and the simulator 210 of the NC computer 200, it is not necessary to manually input the shape information manually through the input unit It is possible to solve the problem.

And the cutting processing unit 140 performs the cutting process of the material. Specifically, the cutting processing unit 140 includes a servo system including a transfer system for transferring the tool and holder, tool and holder, a servo motor for driving the transfer system, a spindle motor, and the like. The detailed configuration and function of the cutting processing unit 140 correspond to matters well known to those skilled in the art, and a detailed description thereof will be omitted.

Meanwhile, the cutting processing unit 140 according to the embodiment of the present invention can move in five axes. That is, the rotary movement (two-axis movement) in the X-Z axis and the Y-X axis direction is performed in addition to the linear movement (three-axis movement) basically in the X, Y and Z axes directions. Therefore, the jog input unit 254 for manually operating the cutting processing unit 140 is also capable of 5-axis input (movement). According to the present invention, since 5-axis input and control are possible, there is an advantage that the material can be processed more precisely.

The machining control unit 150 controls the operation of the machining unit 140 according to the machining command of the central control unit 240. [ More specifically, the machining control unit 150 includes a motor axis control unit 151 to control the operation of the servo mechanism of the cutting processing unit 140 so as to process the workpiece into a desired shape according to NC data transmitted from the machining control unit 150 during automatic operation .

On the other hand, when the machining control unit 150 receives the collision possible position calculation result of the collision area sensing unit 220 during the manual operation, the machining control unit 150 controls the cutting processing unit 140 not to move to the collision possible position. The specific operation will be described later.

The NC computer 200 includes an input unit 250, a simulator 210, a collision area sensing unit 220, and a central control unit 240.

The input unit 250 includes a data input unit 252 for inputting NC data and NC shape information and a jog input unit 254 for jog operation. Various input buttons are provided. The jog input unit 254 comprehensively means input means for manually actuating the cutting processing unit 140 and includes a general push or touch button or a jog button. Accordingly, the operator can manually move the tool and the holder using the jog input unit 254. [

The simulator 210 performs simulation using the shape information of the tool, holder, and workpiece measured from the tool and holder measurement unit 110 and the workpiece measurement unit 120, the input NC shape information, and the NC data do. That is, using information such as the current position and size of the tool and the holder received from the tool and holder measuring unit 11, the workpiece measuring unit 120, the shape information of the inputted NC machine, and the NC data, Then, it checks whether there is a collision between NC machines. The operation of the simulation is well known to those skilled in the art to which the present invention belongs, so that a detailed description thereof will be omitted.

Also, the simulator 210 compares the received NC data with the shape information of the tool and holder, and confirms whether the tool mounted on the holder corresponds to the tool set in accordance with the machining order. The simulator 210 performs simulation when the tool mounted on the holder corresponds to the tool set in accordance with the machining order, and if not, transmits a signal to the central control unit 240 to display an alarm to the user to reset the tool do.

Conventionally, the operator confirms visually whether the tool mounted on the holder corresponds to the set tool. In this case, the measurement is inaccurate and the number of holders and tools required for one machining operation is large So that it becomes troublesome to check each time. However, according to the present invention, as described above, the simulator 210 automatically receives the shape information of the tool and the holder, and checks whether or not the tool and the holder are automatically mounted based on the received information, The time is reduced and the work quality is improved, so that the productivity is improved.

The collision area sensing unit 220 uses the measured shape information of the tool and the holder, the material, and the NC machine along the respective axes of the jog input when the input signal is received from the jog input unit 254 during the manual operation So that the position at which the cutting processing unit 140 can collide with the workpiece is calculated.

Specifically, the collision area sensing unit 220 includes an axially predicted movement locus calculating unit 222, a collision possible position calculating unit 224, and a movement limit range calculating unit 226.

The axial predicted movement locus arithmetic unit 222 calculates the estimated locus of the jog from the current position of the tool and the holder using the shape information of the tool and the holder in the case where there is an input in any one of the five axes from the jog input unit 254 The predicted movement trajectory in the axial direction is calculated.

4 and 5, the collision possible position calculation unit 224 calculates the collision possibility position calculation unit 224 based on the expected movement trajectory predicted by the axially anticipated movement trajectory calculation unit 222, the tool 142, the holder 144, And it computes the intersection point closest to the current position among the colliding intersections between the NC machines and grasps them as collision possible positions. The tool 142 and most of the tool 142 may collide with the workpiece 50 and the NC machine, but the holder 142 may collide. Therefore, a plurality of intersections at which the tool 142 and the holder 144 collide with the work 50 and the NC machine among the anticipated movement trajectories can be found. Among the plurality of intersections, the closest intersection from the current position is found, .

The movement limit range calculation section 226 calculates the movement limit range of the cutting section 140 so that the tool 142 and the holder 144 do not move to the collision possible position. That is, when the tool 142 and the holder 144 move to the collision-possible position, they are set to move only until they collide with the work 50 or the NC machine. It means a range that moves only a certain distance before the position.

As described above, the machining control unit 150 controls the cutting machining unit 140 to move only to the movement limit range so that the cutting machining unit 140 can not move to the collision possible position during the manual operation by the jog input. The machining control unit 150 includes a movement limit range setting unit 152, an operation stop unit 154, and a collision signal generation unit 156.

When the movement limit range information is received by the movement limit range operation unit 226, the movement limit range setting unit 152 sets the movement limit range information in the motor axis control unit 151 so that the cutting operation unit 140 moves only to the movement limit range Setting.

The operation stop unit 154 stops the operation of the cutting processing unit 140 when the cutting processing unit 140 moves out of the movement limit range. That is, when a jog input is made from the user, the holder and the tool of the cutting processing unit 140 are moved in the corresponding axial direction. If the jog input continues from the user to the corresponding axis and the movement limit range is exceeded, 154 automatically performs the deceleration process of the thermo-motor in the set travel limit range to stop the movement of the feed system for feeding the tool and the holder.

The collision signal generating unit 156 transmits a collision detection signal to the central control unit 240 when the cutting processing unit 140 moves beyond the range of the movement limit range setting unit 152. [

The central control unit 240 controls the overall operation of the system. That is, it receives the shape information of the measured tool, the holder, and the workpiece, the NC machine shape information, and the NC data, and transmits it to the simulator 210 and the machining control unit 150 to perform the operation. If there is an input signal from the jog input unit 254, the collision possible position calculation result of the collision area sensing unit 220 is transmitted to the machining control unit 150. When the collision signal is received from the collision signal generating unit 156, the alarm signal (display, light or sound) is generated through the display unit 260 or the speaker (not shown) .

Hereinafter, the operation of the smart numerical control system and the smart numerical control method according to the preferred embodiment of the present invention will be described with reference to FIG. 1 to FIG.

6, when the user places the work material on the bed of the NC machine 100 and presses the start button of the input unit 250, the central control unit 240 initializes the system including the NC machine 100 S301). Then, the modeling file of the NC machine 100 is input, and the shape information of the NC machine is recognized (S302)

Thereafter, the scanner, which is the material measuring unit 120, measures the shape of the workpiece by an instruction from the central control unit 240, and the measurement information is transmitted to the simulator 210 through the processing control unit 150 and the central control unit 240 (S30S).

When the NC data is inputted through the data input unit 252 (S310), the central control unit 240 sets the NC data such as preparation for driving the machining program (step S303) S320).

 Thereafter, the probe, which is the tool and holder measurement unit 110, measures the shape of the tool and the holder by the control command of the machining control unit 150, and this measurement information is also transmitted through the machining control unit 150 and the central control unit 240 And transmitted to the simulator 210 (S330).

The simulator 210 receives the shape information of the tool and the holder and also receives the NC machine shape information and the NC data and compares them to check whether the tool mounted on the holder corresponds to the tool set in accordance with the machining sequence S340).

If the tool mounted on the holder corresponds to the tool set in accordance with the machining order, the simulator 210 proceeds to simulation (S360). Otherwise, it sends a signal to the central control unit 240 to display an alarm to the user, (S350).

The simulator 210 transmits a collision signal to the central control unit 240 and the central control unit 240 transmits an alarm signal to the display unit 260. In the case where the collision occurs between the tool and the holder, To allow the user to take action (S380). If no collision occurs, the central control unit 240 sends a machining command signal to the machining control unit 150, and the machining control unit 150 controls the operation of the machining unit 140 to process the material (S390).

On the other hand, in the case of manual processing, that is, when an input signal is generated from the jog input unit 254 (S401), the probe as the tool and holder measurement unit 110 is controlled by the control command of the machining control unit 150, The measurement information is also transmitted to the simulator 210 through the machining control unit 150 and the central control unit 240 and then transmitted to the collision area sensing unit 210 again.

The predicted movement locus calculating unit 222 of the collision area sensing unit 220 calculates an expected movement locus of the tool and the holder in the input jog axis direction at step S410. The collision possible position calculation unit 224 calculates the expected movement locus Among the intersecting points between the tool and the holder and the workpiece and the NC machine, an intersection closest to the current position of the tool and the holder is calculated and recognized as a collision possible position (S420). The movement limit range calculation unit 226 calculates the movement limit range of the cutting processing unit 140 so that the tool and the holder do not move to the collision possible position and the calculation result is sent to the machining control unit 150, The controller 152 sets the movement limit range of the cutting processing unit 140 (S430).

When the cutting processing unit 140 exceeds the set movement limit range according to the jog continuous movement operation (S450), the cutting processing unit 140 is moved by the jog operation by the user (S440) The controller 154 causes the cutting processing unit 140 to stop the operation of the cutting processing unit 140 so that the cutting processing unit 140 can no longer move in the corresponding axial direction at step S460, The central control unit 240 generates an alarm signal through the display unit 260 or the like (S470). After a certain period of time, the alarm signal is canceled (S480), and it is detected whether or not there is movement in the other axial direction of the jog.

On the other hand, when the cutting processing unit 140 moves within the movement limit range and there is no further movement to the corresponding axis (that is, there is no more movement operation of the jog), it is determined that the movement is completed and the procedure is terminated, If there is a jog movement operation in the direction, the step S402 is repeated.

As described above, according to the present invention, it is possible to automatically measure the shape of a tool, a holder and a workpiece, to confirm whether or not the tool and the holder are properly mounted, and also to automatically measure the tool and the holder, The shape information can be linked with the simulator. Thus, by measuring the size and position of the tool, the holder and the workpiece, and by reducing errors that may occur when setting the tool and the workpiece, it is possible to precisely predict the collision that may occur during the automatic operation and the manual operation have. In addition, it is possible to eliminate the inconvenience that the operator has to input the shape measurement and data in the conventional manner. As a result, according to the present invention, it is possible to predict collision more precisely in automatic and manual operations, thereby enhancing the reliability of the quality and eliminating the troublesome operation by the user's manual operation, thereby increasing the productivity of the work.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that numerous modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. And equivalents should also be considered to be within the scope of the present invention.

100. NC machine 110. Tool and holder measuring part
120. Material measuring part 140. Cutting part
142. Tool 144. Holder
150. Processing control unit 151. Motor shaft control unit
152. Movement limit range setting section 154. Operation stop section
156. Collision signal generator 200. NC computer
210. Simulator 220. Collision area sensing unit
222. Estimated movement trajectory calculation unit for an axial direction 224. Collision possible position calculation unit
226. Moving Limit Range Operation Unit 250. Input unit
252. Data input unit 254. Jog input unit

Claims (10)

A tool and holder measuring unit 110 for measuring the shape of the tool and the holder;
A material measurement unit 120 for measuring the shape of the material;
A cutting processing unit 140 for performing a cutting process of the material and including the tool and holder, a transfer system for transferring the tool and the holder, and a servo motor;
A processing control unit 150 for controlling the operation of the cutting processing unit 140;
The shape information of the tool and the holder and the shape information of the workpiece measured from the tool and holder measuring unit 110 and the workpiece measuring unit 120, A simulator 210 for performing simulation using data;
A collision area for computing a collision possible position between the tool and the holder, the work, and the NC machine, using the measured tool, holder, work, and shape information of the NC machine in accordance with each axis of the jog input from the user, A sensing unit 220; And
The shape information of the tool, the holder, and the workpiece, the NC machine shape information, and the NC data to the simulator 210 and the machining control unit 150 to perform an operation. When the jog input is performed, And a central control unit (240) for transmitting a collision possible position calculation result of the collision possible position to the machining control unit (150)
The machining control unit 150 controls the cutting processing unit 140 to move to the collision possible position when receiving the collision possible position calculation result of the collision area sensing unit 220 by jog input,
The collision area sensing unit 220,
An axially anticipated movement locus arithmetic part (222) for calculating an anticipated movement locus in an axial direction to be moved from a current position of the tool and the holder using the shape information of the tool and the holder when there is an input from one of the jaws; Among the anticipated movement trajectories reminded by the axially anticipated movement locus calculator 222, an intersection point closest to the current position among the collision points between the tool and the holder, the workpiece, and the NC machine is computed and is recognized as the collisionposable position A collision possible position calculation unit 224; And a movement limit range computing unit (226) for computing a movement limit range of the cutting processing unit (140) so that the tool and the holder do not move to the collision possible position.
The method according to claim 1,
The tool and holder measurement unit 110 measures the tool and the holder in a state where the tool and the holder are set on the transfer system,
The tool and holder measuring unit 110 measures the shape information including the tool position, the length L and the diameter D and the corner rounding R, and measures the position, length L1 to L4, is a probe for measuring shape information including d1 to d4.
The method according to claim 1,
The material measuring unit 120 measures the material on a bed,
Wherein the material measurement unit (120) is a three-dimensional scanner for measuring shape information including a position and a size.
The method according to claim 1,
The simulator 210 compares the received shape information of the tool and the holder with the NC data to confirm whether or not the tool mounted on the holder corresponds to the tool set in accordance with the machining order, And if not, sends a signal to the central control unit 240 to display an alarm to the user, thereby resetting the tool.
The method according to claim 1,
Wherein the cutting processing unit (140) is movable in five axes, and the jog is capable of inputting five axes.
delete The apparatus according to claim 1, wherein the machining control unit (150)
A movement limit range setting unit 152 for setting the movement limit range information by the movement limit range calculation unit 226 in the cutting processing unit 140,
And an operation stop unit (154) for stopping the operation of the cutting processing unit (140) when the cutting processing unit (140) moves out of the movement limit range.
8. The apparatus according to claim 7, wherein the machining control unit (150)
And a collision signal generator (156) for transmitting a collision signal to the central control unit (240) when the cutting processing unit (140) moves out of the movement limit range,
Wherein the central control unit (240) generates an alarm signal so that the user can know when the collision signal is received from the collision signal generation unit (156).
a) measuring the shape of the workpiece and receiving shape information of the NC machine;
b) receiving and setting NC data when there is a machining instruction from the user;
c) measuring the shape of the tool and the holder;
d) comparing the shape information of the tool and the holder with the NC data to confirm whether the tool mounted on the holder corresponds to a tool set in accordance with the machining order;
e) performing a simulation when the tool mounted on the holder corresponds to a tool set in accordance with the machining sequence, and if not, displaying an alarm to the user to reset the tool;
f) in the event of a collision between the tool and the holder and the workpiece and the NC machine during the simulation, an alarm indication is issued and the user takes action;
g) machining the material in the event that collision between the tool and the holder and the workpiece and the NC machine does not occur during the simulation; And
h) calculating possible collision positions between the tool and the holder and the workpiece and the NC machine using the tool, holder, workpiece and shape information of the NC machine measured along each axis of the jog input from the user in the jog input, And setting the tool and the holder not to move to the collision-capable position when the tool is moved,
The step h)
h1) measuring the shape of the tool and the holder when there is a jog input signal; h2) calculating an expected movement locus of the tool and the holder in the axial direction of the input jog using the shape information of the tool and the holder; h3) calculating an intersection closest to the current position of the tool and the holder among the intersections between the tool, the holder, the workpiece, and the NC machine among the anticipated movement trajectories and grasping it as a collision possible position; h4) calculating a movement limit range and setting it so that the tool and the holder do not move to the collision possible position; h5) stopping the operation of the tool and the holder to prevent further movement in the axial direction when the tool and the holder move out of the movement limit range according to the jog movement; And h6) displaying an alarm to the user when the tool and the holder move out of the movement limit range in accordance with the jog movement.
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