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Safe tool replacing method based on tool life application mode

A technology of application mode and tool life, applied in the direction of manufacturing tools, clamping, support, etc., can solve the problems of not considering the processing status of parts, reduce the risk of parts processing quality, etc. Safe and reliable effect of the knife

Inactive Publication Date: 2019-04-12
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the problem that the existing tool life management tool change method does not consider the processing state of the part and has a high quality risk, the purpose of the present invention is to provide a safe tool change method based on the tool life application mode, and realize the simultaneous restoration of the safe tool change The function of the processing state of the tool, with automatic tool change, can effectively reduce the risk of machining quality of parts after tool change

Method used

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  • Safe tool replacing method based on tool life application mode
  • Safe tool replacing method based on tool life application mode
  • Safe tool replacing method based on tool life application mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A safe tool change method based on the tool life application mode in this embodiment, such as figure 1 As shown in the figure, set the safety plane, and perform the tool replacement operation on the safety plane. The tool replacement operation includes recording and saving the current state parameters of the old tool to the PLC variable group, and then replacing the new tool with the new tool, so that the new tool can be restored on the safety plane. Processing state, adjust the new tool to the same working state as the old tool according to the current state parameters.

[0028]When performing programming operations in CAM, establish a safe plane, which is located on the upper part of the parts and tooling, and leave a sufficient safety distance to ensure that the tool will not collide with parts and tooling when performing any swing angle operation after returning to the safe plane. , machine tools, etc. interfere, and then advance and retreat the knife for each opera...

Embodiment 2

[0030] This embodiment is further optimized on the basis of embodiment 1, such as figure 2 As shown, the current state parameters include tool specification parameters, machining origin coordinate parameters, spindle forward and reverse rotation parameters, tool measurement parameters, machine tool cooling mode parameters, AB axis or AC axis locking state parameters, tool space coordinate parameters, tool Swing angle parameters; read the coordinate values ​​of x, y, z, A, B (or C) before tool change, use the pre-swing function to activate the coordinate system, TRAORI at the safety check position after tool change, and set A, B (or C) C) The swing angle returns to the state before tool change.

[0031] The tool specification parameters include tool information such as tool number; the machining origin coordinate parameters are the preset origin coordinates in the CNC machining space, generally set to X=0, Y=0, Z=0; the spindle forward and reverse parameters are the positive a...

Embodiment 3

[0043] This embodiment is further optimized on the basis of the above-mentioned embodiment 1 or 2. After the current state parameters are recorded and saved, the old tool is stored in the tool library of the machine tool and marked as disabled, and then a new tool of the same specification is used.

[0044] After recording and saving the current state parameters of the old tool, the tool change operation can be performed, and the used old tool can be stored in the tool magazine, and then the old tool information can be marked and the old tool can be disabled, because the tool with the same specification is in the The library is marked with the same name, and the used old tool must be set to disable to prevent the used old tool from being used as a new tool when replacing the tool.

[0045] Other parts of this embodiment are the same as those of Embodiment 1 or 2 above, so details are not repeated here.

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Abstract

The invention discloses a safe tool replacing method based on a tool life application mode, and belongs to the technical field of numerical control machining safety tool replacing. The safe tool replacing method comprises the steps that a safety plane is arranged, when a tool reaches the safety plane, a tool residual life value detection subroutine is called to detect a tool residual life value, and when it is detected that the tool residual life value is less than a set value, current state parameters of the stored tool are recorded through a PLC variable group; then a tool replacing subroutine is called to replace the tool with a new tool; and after the tool is replaced with the new tool, the current state parameters stored in the PLC variable group are read, and the new tool is adjustedto be in a machining state identical with the machining state of the old tool. The safe tool replacing method has the beneficial effects that automatic detection for tool replacing based on the toolresidual life is achieved, the consistency of working states of the tool before and after tool replacing is ensured, the part machining quality risk after tool replacing is lowered, tool replacing issafe and reliable, and tool feeding and retracting are safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of safe tool change in numerical control machining, and in particular relates to a safe tool change method based on a tool life application mode. Background technique [0002] In the machining of CNC structural parts, the state of tool wear and tear is an important indicator of whether the machining process is stable and controllable. In fact, the state of tool wear and tear depends heavily on manual judgment, and people play an important role in the control of part processing quality and processing cost. Due to the characteristics of difficult-to-machine materials such as titanium alloys, the tool life is short, and frequent tool inspections or replacements will be caused during the machining process, which will not only increase production maintenance costs, but also cause a large number of production interruptions and affect production efficiency. On-site processing mainly uses manual inspection of tool w...

Claims

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Application Information

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IPC IPC(8): B23Q3/16B23Q3/157B23Q17/09
CPCB23Q3/157B23Q3/16B23Q17/0904
Inventor 孙超赵中刚姜振喜王伟冯斌李卫东
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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