Measuring device of repeated positioning accuracy of automatic tool changing of rotary manipulator
A technology of repeated positioning accuracy and rotating manipulator, applied in positioning devices, measuring/indicating equipment, metal processing machinery parts, etc., can solve the problems of assembly errors, cumbersome tooling steps, inaccurate repeated positioning accuracy, etc., to reduce equipment costs, Universal effect
Active Publication Date: 2014-02-05
BEIJING UNIV OF TECH
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Problems solved by technology
This measurement method has the following two disadvantages: the circular grating is placed on the rotation axis of the mechanism in this method. During the measurement process, the mechanical arm needs to be disassembled, the circular grating is installed, and then the mechanical arm is installed. The whole process will make the tooling steps extremely difficult. It is cumbersome, and it will also bring assembly errors; in addition, the neglected axial runout will also affect the repeated positioning accuracy of the execution end of the rotary manipulator, resulting in inaccurate repeated positioning accuracy
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation examples.
[0016] Such as figure 1 Shown is the three-dimensional overall schematic diagram of the repeated positioning accuracy measurement device, which consists of automatic tool changer rotary manipulator 1, linear grating scale 2, zero position 3, end pressure block 4, reading head 5, eddy current sensor 6, spindle head 7, Spindle head support seat 8, mechanical arm rotation axis 9, and bracket 10; the manipulator rotation axis 2 is connected to the automatic tool changer rotation manipulator 1 through bolts, and the automatic tool changer rotation manipulator 1 is driven by the manipulator rotation axis 2, and the manipulator rotation axis 2 is driven by the Motor drive; the two ends of the automatic tool change rotary manipulator 1 are the execution ends, and the linear grating scale 2 is pasted on the arc end of the automatic tool chan...
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The invention aims at providing a measuring device of the repeated positioning accuracy of automatic tool changing of a rotary manipulator. The measuring device is composed of a separation incremental linear grating portion with a zero and an eddy current sensor portion; A separation incremental linear grating scale with the zero mainly detects instantaneous X-direction displacement of the tool changing of the execution end of the rotary manipulator; the eddy current sensor portion mainly detects instantaneous Y-direction displacement of the tool changing of the execution end of the rotary manipulator; therefore, the plane position of the tool changing every time of the tool changing manipulator can be determined, and the repeated positioning accuracy of the tool changing manipulator can be determined. The measuring device of the repeated positioning accuracy of the automatic tool changing of the rotary manipulator recues assembly errors caused by method that a tool changing mechanism needs to be dismantled in tradition measurement and can measure the repeated positioning accuracy of automatic tool changing of the rotary manipulator, so that the measurement results are more reliable.
Description
technical field [0001] The invention relates to a repeat positioning accuracy measuring device, in particular to the field of automatic tool changing equipment for a rotary manipulator of a numerically controlled machining center, in particular to a repeat positioning accuracy measuring device for automatic tool changing of a rotating manipulator. Background technique [0002] The tool magazine and automatic tool change mechanism are important components to realize the tool reserve and automatic tool change functions in the high-end machining centers and heavy-duty machining centers of machine tools. Various types of tools required by the machining center are stored in the tool magazine, and the tool to be used in the tool magazine is exchanged with the working tool of the spindle through the tool change mechanism, thereby realizing multi-type, high-precision, and high-efficiency machining. In general small vertical integrated machining centers, the tool magazine is generall...
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IPC IPC(8): B23Q17/00B23Q17/24
CPCB23Q3/157B23Q17/00B23Q17/2476
Inventor 崔晶骆玉霞王迪凡牟宏明杨宇
Owner BEIJING UNIV OF TECH