How to solve the pain points in the tool change of CNC machi
source：未知
In CNC machine tools today, robotic tool change has become mainstream. Compared with other tool change methods, the robot tool changer has the characteristics of faster and more accurate tool change and smaller motion range of various mechanical components.
However, in the robot tool change, there are also the following pain points:
01.
The tool magazine robot is not allowed to move
Each start and stop of the tool change action of the robot sends a brake signal to the controller through the tool magazine itself. After receiving the brake signal, the controller immediately sends a broken robot to rotate the output. This part requires the controller to have a higher signal processing speed and speed. If it is not reached, the robot will not be allowed to move.
02.
The tool holder memory error after the tool cover is disordered
After the tool library is initialized and then a series of tool change actions are performed, the original tool and tool holder will be disrupted. Usually, the program is not well written, and a memory error occurs. The target tool is removed when the tool is changed. If the actual machining tool does not match, it may cause damage to the machine tool to continue machining.
03.
Tool change count deviation in peer-to-peer tool change
Usually, two knives are interchanged during the machining process, and multiple tool changes are repeated in one knives position. At this time, when the other tools are exchanged, the tool magazine will rotate more than one bit, resulting in a tool change error. .
Controller performance and tool change procedures play a crucial role in tool change in the machining center robotic tool magazine. A motion controller with simple operation, stable performance, accurate tool change and high cost performance is extremely important for the machining center.
The standard macro program command is used to complete the tool change of the robot tool magazine, and the versatility is good. The popular CNC46 series CNC system and CNC96 series CNC system can be quickly transplanted to all similar systems that support macro programming. For example, the application of this tool magazine can be extended to other auxiliary function controls. The popular CNC CNC system can perfectly solve the pain points in the above industries.
For example, the popular CNC milling machine control system of CNC9640 (4-axis) is based on the latest ZYNQ_A9 platform. The signal processing speed can be used in the hairdressing system, which is more than enough for the market.
The public system uses the innovative macro variable memory function to record the tool holder where each tool is located. The macro program selects the tool function. When the target tool is selected, the system program will be fast, efficient and accurate for the macro variable tool holder. The tool performs a comparison search. After comparing the tool holders of the target tool, the tool will be changed according to the current tool position and then the multi-condition logic judgment program.
(In order to facilitate identification, the different colors in #800-#823 (except green) represent the tool number of the current tool holder after the tool is changed, green represents the number of rotations of the cutter head, the current tool number, and the target tool number, and the wine red represents The tool number recorded in the history buffer queue, when the target tool appears in the buffer queue, the adjacent tool exchange condition is triggered)
Repeat the exchange of the two tools to use the possible deviation of the count, establish the adjacent tool exchange conditions, save the first three tool change records in the history buffer list, when the target tool is in the history buffer list, it will trigger the adjacent tool exchange. Condition to solve the problem of counting deviation.
