TW201726305A - Five-axis CNC machine RTPC enabled handwheel test run method and device thereof that does not terminate a machining program as taking turn of a machining instruction of starting RTCP - Google Patents

Abstract

A handwheel test run method of the present invention comprises steps of: reading a machining program by a five-axis CNC machine; activating a handwheel test run mode of the five-axis CNC machine; rotating a handwheel device to adjust a cutting speed of the five-axis CNC machine; executing a first machining instruction of the machining program such that a next machining instruction is executed after the machining instruction is completed; calculating a plurality of machining signals based on the machining program and the cutting speed when a machining instruction that starts RTCP is executed, and selecting an optimum machining signal among the plurality of machining signals to set a next machining process; storing the foregoing optimum machining signal in the five-axis CNC machine so that the next machining process is carried out as the optimum machining signal when a machining instruction of starting RTCP is executed again. As such, the machining program will not be terminated as taking turn of a machining instruction of starting RTCP so that the tool axis of the five-axis CNC machine still maintains the original command state.

Description

Hand wheel trial running method and device thereof with five-axis numerical control machine tool RTPC

The invention relates to a hand wheel trial running method applied to a five-axis numerical control machine tool, in particular to a hand wheel trial running method which does not terminate the execution of a machining program when the machining instruction to start the RTPC is executed.

The five-axis CNC machining machine is a processing machine for complex curved surfaces, and integrates computer control, high-performance servo and precision machining technology. Due to the high cost of the five-axis CNC machining machine, five-axis CNC machining In the past, it was mainly used in the aerospace industry and the military sector. However, with the advancement of microelectronics technology and control technology, the cost of the five-axis CNC machining machine has been continuously reduced, and the reliability and functions have been continuously enhanced, making the application range of the five-axis CNC machining machine. Constantly expanding, it has expanded from special fields such as aviation and military to automotive and mold manufacturing.

Today's five-axis machining technology is based on the original machining geometry through the five-axis machining path planning method to plan the tool attitude and machining path, so the processing quality depends on the five-axis machining path planning method, when the planning method is not appropriate, The quality of the processing will decrease.

On the other hand, it is quite difficult to select an appropriate path planning method according to the geometry of the processed product. The finished product is usually processed in a conventional manner, and the finished product is often jagged or uneven, that is, a non-smooth surface, if five axes The processing program has a large amount of data, and it takes a lot of time to correct the processing program. The correction of the processing program depends on the user's experience and technology, and the use threshold of the five-axis processing program is too high, so how to use the user's The planned five-axis machining path program solves the problem that the machining path is smoothed, the time required for the user to correct the machining program, and the lower threshold for the use of the five-axis machining program to improve the machining quality.

At present, the general solution is to check and check according to the specific machine structure during post processing. If the error exceeds the allowable range, the corresponding correction processing is performed. Among them, the nonlinear error check requires knowing the length of the tool. If you want to perform this function during post processing, you must ensure that the tool length is exactly the same as the value considered in the machining program, and any modification can only rewrite the machining program.

In the actual machining, the replacement and wear of the tool will inevitably change the length of the tool. Repeated rewriting of the program will greatly reduce the machining efficiency. Furthermore, the main method of suppressing nonlinear errors is to perform special processing during pre-processing programming. This method does not guarantee that the interpolation point is always on the programming trajectory. This method needs to consider the machine structure, and also requires the tool length and writing time value. The same is the same, so the tool length change will inevitably lead to the change of the tool length, the program must be rewritten, and the rotary tool center point compensation function (RTCP) is directly implemented in the numerical control system, which is an ideal method to suppress nonlinear error.

However, when the 5-axis CNC machine starts the RTPC, the planned machining path is inconsistent with the actual machining path. Therefore, the actual workpiece contour cannot be cut, and even the tool collision may be invented.

The main object of the present invention is to provide a hand wheel trial running method applied to a five-axis numerical control machine tool, whereby the five-axis CNC machining machine does not execute when the five-axis CNC machining machine executes the machining instruction to start the RTPC. Terminate the execution of the machining program.

In order to achieve the above objective, the hand wheel trial running method of the five-axis numerical control machine tool RTPC of the present invention comprises: reading a machining program by a five-axis numerical control machine tool; starting the hand wheel trial running mode of the above five-axis numerical control machine tool Shaking a hand wheel device to adjust the cutting speed of the above five-axis CNC machining machine; executing the first machining instruction in the above machining program, executing the next machining instruction after completing the machining instruction; when executing the machining instruction to start RTCP Calculating a plurality of processing signals according to the processing program and the cutting speed, and selecting an optimized processing signal from the plurality of processing signals to perform the next processing program; the five-axis numerical control machine tool stores the optimized processing signal, And when the processing instruction to start the RTPC is executed, the processing program for starting the RTPC is started by using the optimized processing signal; and when the processing program does not need to execute the processing instruction for starting the RTPC, the hand wheel trial running mode can be canceled, and The automatic execution mode of the above five-axis CNC machine tool is started to complete the unexecuted machining instruction.

In the preferred embodiment, when the five-axis CNC machining machine executes the machining command, the hand wheel trial running mode of the five-axis CNC machine tool can be turned off or started at any time.

In addition, the handwheel test device enabled by the five-axis CNC machine tool RTPC is mainly composed of an interpretation module, a parameter module, a planning module, a pulse generator, a re-planning module and an execution module. .

The above-mentioned interpreting module reads a processing program, and interprets the processing program to generate a track coordinate of a processing component; the parameter module has a set value of a plurality of processing signals; the planning module is electrically connected to the above Interpreting the module and the parameter module to receive the track coordinates, and generating a path message and a speed message of the tool processing according to the track coordinate calculation; the pulse generator generates an electronic pulse; the re-planning module is simultaneously electrically Connecting to the planning module and the pulse generator, and receiving the electronic pulse calculation to form a correction message transmitted to the planning module, and the execution module is electrically connected to the planning module, and accepting the processing signal to execute Cutting of workpieces.

The planning module transmits the path information and the speed message to the execution module, so that the execution module follows the path information and the speed information, when the planning module executes the track coordinates that do not have the RTPC. Cutting the above-mentioned workpiece;

When the planning module executes the track coordinates with the starting RTPC, the track module calculates the path information, the speed message and the correction message to form a plurality of processing signals, and selects a plurality of processing signals by a plurality of processing signals. Optimizing processing signals for the execution module and the re-planning module, wherein the execution module performs cutting processing on the workpiece according to the optimized processing signal, and the re-planning module optimizes the processing signal Save it.

Furthermore, when the planning module re-executes the track coordinates with the startup RTPC, the heavy track module directly transmits the optimization parameter to the execution module, so that the execution module can be optimized according to the above processing. The signal is used to cut the above-mentioned workpiece.

The invention is characterized in that when the processing instruction for starting the RTCP is executed, a plurality of processing signals are calculated according to the processing program and the cutting speed, and then an optimized processing signal is selected from the plurality of processing signals to perform the next processing procedure. When the processing command to start the RTPC is executed, the next processing program is executed with the optimized processing signal, so that the processing program is not terminated.

In order to further clarify and understand the structure, the use and the features of the present invention, the preferred embodiment is described in detail with reference to the following drawings:

Referring to FIG. 1 , the hand wheel trial running method of the five-axis numerical control machine tool RTPC of the present invention is used together with a five-axis CNC machining machine 10 , and the five-axis numerical control processing machine 10 is mainly composed of an interpretation module 11 . A parameter module 12, a planning module 13, a pulse generator 14, a re-planning module 15, and an execution module 16 are formed. The above-mentioned interpreting module 11, the parameter module 12, the re-planning module 15 and the execution module 16 are all electrically connected to the planning module 13, and the pulse generator 14 is electrically connected to the re-planning. Module 15.

Referring to FIG. 1 and FIG. 2, the above-mentioned interpreting module 11 reads a processing program 17 and interprets the processing program 17 to generate a track coordinates of a workpiece, and the interpreting module 11 displays the track coordinates. Passed to the above planning module 13.

The hand wheel trial running mode of the five-axis CNC machine 10 is started, and the hand wheel device is shaken to adjust the cutting speed of the five-axis CNC machine 10, so that the pulse generator 14 generates an electron transmitted to the re-planning module 15. Pulses, and the re-planning module 15 receives the electronic pulse and calculates a correction message that is transmitted to the planning module 13.

The planning module 13 executes the first processing instruction in the track coordinate. If the first processing instruction does not have the processing to start the RTPC, the planning module 13 generates a path information and a speed of the tool according to the track coordinate calculation. The message and the speed message are further transmitted to the execution module 16, so that the execution module 16 can start cutting a workpiece according to the path information and the speed message. Wherein, when the five-axis numerical control machining machine 10 executes the machining instruction, the hand wheel trial running mode of the above five-axis numerical control machine tool can be turned off or started at any time.

When the planning module 13 executes the processing command to start the RTCP, the trajectory module calculates a plurality of processing signals by using the path information and the speed message of the track coordinate with the correction message, and the planning module 13 is further A plurality of processing signals select an optimized processing signal, and the optimized processing signal is simultaneously transmitted to the re-planning module 15 and the execution module 16, wherein the re-planning module 15 optimizes the above The processing signal is stored, and the execution module 16 can cut the workpiece according to the optimized processing signal.

When the planning module 13 executes the processing instruction to start the RTPC, the re-planning module 15 directly transmits the optimization parameter to the execution module 16, so that the execution module 16 can be optimized according to the above. The machining signal is processed by the machining signal, so that the planning module 13 does not need to calculate the path information and the speed information of the track coordinate with the correction message, so that the actual processed path track can be consistent with the appearance of the workpiece. .

Finally, when the processing program 17 does not execute the processing instruction for starting the RTPC, the hand wheel trial running mode can be canceled, and the automatic execution mode of the five-axis numerical control machine tool is started, so that the planning module 13 follows the unfinished track. The coordinates are calculated to calculate the above path message and speed message to complete the unexecuted machining instruction.

The above-mentioned embodiments are merely intended to be illustrative of the present invention and are not intended to limit the scope of the invention, and the various modifications and modifications made by those skilled in the art in accordance with the scope of the invention and the description of the invention are still It is included in the scope of the following patent application.

10‧‧‧5-axis CNC machining machine
11‧‧‧Interpretation module
12‧‧‧Parameter module
13‧‧‧ planning module
14‧‧‧ pulse generator
15‧‧‧Re-planning module
16‧‧‧Executive Module
17‧‧‧Processing program

Fig. 1 is a block diagram of a hand wheel test run device with a five-axis CNC machine tool RTPC enabled; and Fig. 2 is a flow chart of steps of a hand wheel test run method with a five-axis CNC machine tool RTPC enabled.

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Claims (6)

A hand wheel trial running method enabled by a five-axis numerical control machine tool RTPC, comprising: reading a machining program by a five-axis numerical control machine tool; starting a hand wheel trial running mode of the above five-axis numerical control machine tool; shaking a hand wheel device to Adjusting the cutting speed of the above five-axis CNC machining machine; executing the first machining instruction in the above machining program, executing the next machining instruction after completing the above machining instruction; when executing the machining instruction to start RTCP, according to the machining program and The cutting speed calculates a plurality of processing signals, and then an optimized processing signal is selected from the plurality of processing signals to perform the next processing procedure; and the five-axis numerical control machine tool stores the optimized processing signal, and then executes to start When the RTPC processing command is executed, the RTPC processing program is started with the above optimized processing signal. For example, the hand wheel test run method enabled by the five-axis numerical control machine tool RTPC described in the first application patent scope, wherein the above five-axis numerical control machine can close or start the above five-axis numerical control machine tool when executing the machining instruction. Hand wheel trial run mode. The hand wheel trial running method of the five-axis numerical control machine tool RTPC as described in claim 1 of the patent application, wherein when the processing program does not need to execute the processing instruction for starting the RTPC, the hand wheel trial running mode can be canceled, and The automatic execution mode of the above five-axis CNC machine tool is started to complete the unexecuted machining instruction. A hand wheel test running device activated by a five-axis numerical control machine RTPC, comprising: an interpretation module, reading a processing program, and interpreting the processing program to generate a track coordinate of a workpiece; a parameter module, A set value of a plurality of processing signals is built; a planning module is electrically connected to the interpreting module and the parameter module to accept the track coordinates, and generates a path information of the tool processing according to the track coordinate calculation a speed message; a pulse generator for generating an electronic pulse; a re-planning module electrically connected to the planning module and the pulse generator, and receiving the electronic pulse calculation to form a correction message transmitted to the planning module, And an execution module electrically connected to the planning module; wherein, when the planning module executes the track coordinates that do not have the RTPC, the planning module transmits the path information and the speed message to the execution mode a group, wherein the execution module cuts the workpiece according to the path information and the speed message; and when the planning module When the group performs the above-mentioned track coordinates with the startup RTPC, the track module calculates the path information, the speed message and the correction message to form a plurality of processing signals, and selects one of the plurality of processing signals to transmit to the execution module. The optimized processing signal is such that the execution module performs cutting processing on the workpiece according to the optimized processing signal. The hand wheel test run device enabled by the five-axis numerical control machine tool RTPC described in claim 4, wherein the planning module transmits the optimized message to the re-planning module to make the re-planning mode The group stores the above optimized processing signals. The hand wheel test device of the five-axis numerical control machine tool RTPC as described in claim 5, wherein when the planning module executes the above-mentioned track coordinates with the startup RTPC, the above-mentioned heavy track module will The optimization parameter is directly transmitted to the execution module, so that the execution module can perform the cutting process on the workpiece according to the optimized processing signal.