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A High-Precision On-line Measuring Method of Tool Offset

A technology of deviation amount and tool, which is applied in the direction of measuring/indicating equipment, manufacturing tools, metal processing equipment, etc., and can solve problems such as non-compliance, tool eccentric beating, and unstable process environment

Active Publication Date: 2016-04-20
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the many factors affecting the tool deviation in the actual machining process, such as the eccentric beating of the tool, the anisotropy of the processing material, the instability of the process environment, etc., the actual tool deviation often does not meet the prediction

Method used

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  • A High-Precision On-line Measuring Method of Tool Offset
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  • A High-Precision On-line Measuring Method of Tool Offset

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Experimental program
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Embodiment Construction

[0044] like Figure 1 to Figure 3 As shown, a high-precision online measuring device for tool deviation includes a clamping mechanism 16 fixedly installed on the spindle head 4 of the machine tool 1. A laser displacement measuring device 19 is installed on the clamping mechanism 16, and the laser The displacement measuring device 19 is connected with a data acquisition and processing device 20 for receiving and processing the signals sent by it. The laser displacement measuring device 19 includes more than two laser measuring heads 7, and the laser measuring heads 7 are all installed on the clamping mechanism 16. Each laser measuring head 7 is provided with a laser transmitter 9 and a laser receiver 8. The laser line emitted by the laser transmitter 9 is reflected on the measured surface of the tool and received by the laser receiver 8. There is a laser measuring The laser line emitted by the head 7 is parallel to the X axis of the machine tool 1 , and the laser line emitted b...

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Abstract

The invention discloses a high-accuracy cutter deviation online measuring device which comprises a clamping mechanism fixedly installed on a main shaft head of a machine tool. A laser displacement measurement device is installed on the clamping mechanism, a data acquisition processing device for receiving and processing signals sent by the laser displacement measurement device are connected onto the laser displacement measurement device, and the laser displacement measurement device comprises more than two laser measuring heads. The laser measuring heads are installed on the clamping mechanism, and a laser transmitter and a laser receiver are arranged on each laser measuring head. The cutter deviation in the cutting process is measured by means of the laser displacement measurement device, the signal acquisition frequency is high, and the measurement accuracy is high. The deviation of a cutter in the X-axis direction and Y-axis direction can be measured simultaneously by means of at least two laser measuring heads, a geometric relationship equation is established to perform error compensation, the external disturbing influence is small, and the measurement accuracy is high.

Description

technical field [0001] The invention relates to the field of tool measuring devices, in particular to a high-precision online measuring method for tool deviation. Background technique [0002] Five-axis CNC machining can make the reachable space of the tool wider by changing the relative position of the tool and the workpiece, so that the interference or collision between the tool, the workpiece and the process system can be effectively avoided through the tool position planning. Therefore, five-axis CNC machining has been widely used in complex surface machining in the fields of aerospace, energy, automobile and defense. [0003] However, the deviation of the tool from the theoretical position will reduce the machining accuracy, which cannot be ignored. Especially for ultra-high-strength and ultra-hard material workpieces, such as aircraft landing gear, engine impellers and other aviation parts are difficult-to-machine materials with high strength and high hardness, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q17/22B23Q17/24
CPCB23Q17/2428
Inventor 彭芳瑜段现银江兰兰朱泽润闫蓉李斌
Owner HUAZHONG UNIV OF SCI & TECH
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