Offset detection and control method for spiral hole milling device

A helical milling hole and control method technology, which is applied in the direction of manufacturing tools, measuring/indicating equipment, metal processing machinery parts, etc., can solve the problems of difficulty in ensuring accuracy and inability to detect the actual value of eccentricity, etc., so as to reduce scrap rate and processing accuracy The effect of reduced requirements and high degree of automation

Active Publication Date: 2015-11-11
DALIAN UNIV OF TECH
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Problems solved by technology

[0007] In response to the above problems, the present invention researches and designs a method for detecting and controlling the eccentricity of a helical mil

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  • Offset detection and control method for spiral hole milling device
  • Offset detection and control method for spiral hole milling device
  • Offset detection and control method for spiral hole milling device

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Example Embodiment

[0050] Example one

[0051] Such as figure 1 As shown, the laser detection device 8 includes an emitter 3 and a receiver 4. The emitter 3 and the receiver 4 are connected to the base 6 of the automatic screw milling device 1 through a bracket 5. The automatic screw milling device can realize the rotation of the tool and the tool. The function of revolution, axial feed and automatic eccentric adjustment. The nominal diameter of the machined hole D=10mm, the tolerance range is 0~+0.05mm, the nominal diameter of the tool d 0 = 6mm. Specific steps are as follows:

[0052] a. The laser detection device 8 is installed on both sides of the front of the spiral milling device 1 through the bracket 5 to form a detection area 7 so that the laser direction in the detection area 7 is perpendicular to the tool 2;

[0053] b. Start the feed device of the spiral milling device 1 so that the cutting edge portion of the tool 2 is located in the detection area 7;

[0054] c. Tool 2 rotates to detect ...

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Abstract

The invention discloses an offset detection and control method for a spiral hole milling device and belongs to the technical field of spiral hole milling. The method includes the following steps that a laser detection device is installed to form a detection region; the spiral hole milling device is started, so that a cutting blade of a tool is located in the detection region; autorotation of the tool is performed and the actual diameter d of the tool is detected; according to the actual diameter d of the tool and the nominal diameter D of a hole to be machined, the theoretical offset is determined, and meanwhile the allowed maximum offset error is set according to the tolerance zone of the hole to be machined; the offset value of the spiral hole milling device is adjusted to be the theoretical offset e0; revolution of the tool is performed and the actual offset e is detected; the detected actual offset e is compared with the theoretical offset e0, and spiral hole milling is performed if the actual offset e is qualified; and adjustment is performed if the actual offset e is not qualified till the actual offset e is qualified. By the adoption of the method, influences of tool size errors on the diameter of the machined hole are eliminated, the machining accuracy of the machined hole is improved, the rejection rate is reduced, and economic benefits and production efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of helical milling hole processing, in particular to an eccentricity detection and control method of a helical milling device. Background technique [0002] Helical milling is a new technology emerging in the aviation manufacturing industry. It refers to the use of a special end mill. The tool itself revolves around the axis of the hole to be processed while rotating at high speed, and feeds in the direction of the axis of the hole to be processed. Finally, a hole with a diameter larger than The machining method of the round hole of the tool itself is named helical milling hole because the tool feed trajectory is helical. Because the hole-making of new materials such as composite materials and titanium alloys shows many advantages over traditional drilling, helical milling holes are applied to aircraft assembly to replace traditional drilling to process some high-quality bolt holes and rivets. hole, and the...

Claims

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Application Information

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IPC IPC(8): B23Q17/24B23Q17/09
CPCB23Q17/0952B23Q17/2457
Inventor 康仁科董志刚朱祥龙杨国林王欢
Owner DALIAN UNIV OF TECH
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