2018年12月10日星期一

Busbar processing machine reduces error method

When the busbar processing machine realizes the punching, cutting and bending operations, the error is difficult to avoid. In order to improve the machining accuracy, measures to minimize the error are taken. The following small series introduces you to the method of reducing the error of the bus processing machine.

    The method for reducing the error of the bus processing machine is as follows:

    1. The influence of machine tool repeat positioning accuracy. The positioning
accuracy of the busbar processing machine is the positional accuracy of the coordinate axes of the index control machine under the control of the system. The factors causing the positioning error include the error of the system and the error of the mechanical transmission. The error of the system is related to interpolation error, tracking error and so on. The repeating positioning accuracy of the bus processing machine refers to the degree of conformity between the actual position of the coordinate axis and the ideal position during repeated positioning.

    2. The influence of tool error. In the machining center, the tool exchange has an automatic exchange function, which increases the productivity and brings about tool exchange errors. When a batch of workpieces is processed by the same tool, the tooling is repeated repeatedly, causing repeated positioning errors of the tool holder relative to the spindle taper hole to reduce the machining accuracy.

    3. The influence of the detection device. The detection feedback device is also called a feedback component, and is usually mounted on a bus processing machine table or a lead screw. The detection feedback device converts the displacement of the table into an electrical signal and feeds it back to the numerical control device. If there is an error compared with the command value, then The control table moves in the direction of eliminating the error. The numerical control system can be divided into open loop, closed loop and semi closed loop systems according to the presence or absence of detection devices. The accuracy of the open loop system depends on the accuracy of the stepper motor and the lead screw. The accuracy of the closed loop system depends on the accuracy of the test device. The inspection device is an important part of the high performance bus processing machine.

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