A Plane Circular Marking Tool and Its Application

Abstract

The invention relates to the application of a planar arc marking tool. A positioner is fixedly connected to the start end of a graduated scale, a first positioning slider and a second positioning slider are arranged on the right side of the positioner from left to right in sequence, the graduated scale penetrates through both the first positioning slider and the second positioning slider, a circle center positioning needle is arranged on the upper end face of the first positioning slider in a penetrating mode, the point of the needle is downward, an elastic device is arranged between the circle center positioning needle and the first positioning slider, a scriber is arranged on the upper end face of the positioner in a penetrating mode, a universal wheel is arranged on the lower end face of the second positioning slider, the point of the scriber, the point of the circle center positioning needle and the lower end face of the universal wheel are located on the same horizontal plane, and the graduated scale is fixedly connected with the positioner. The planar arc marking tool is simple in structure, convenient to machine and low in cost; when an arc is designed and marked, no matter how large the radius of the arc is, only one worker is needed for operation, and therefore, working efficiency is improved; because the radius of the arc marking tool can be fixed according to the request for size, the number of uncontrollable human factors is reduced, and the accuracy of arc marking is improved.

Description

technical field [0001] The invention relates to a scribing tool and its application, in particular to a plane arc scribing tool and its application, belonging to the field of mechanical air transport. Background technique [0002] With the development of digital production technology, the role of templates in aircraft manufacturing is becoming weaker and weaker, but it is very difficult to design arc markings on templates or parts, especially when the arc radius is large. The traditional arc scribing relies on compasses when the arc radius is small. Due to the different operating methods of workers, the angle of the compass is easy to change during the rotation process, resulting in changes in the arc radius and low precision. When the radius of the arc is large, use a ruler of equal length, one end is fixed by the worker, and the other end is fixed by another worker to fix the relative position of the pen and the ruler, and then the ruler is rotated to draw the arc, which w...

AI Technical Summary

Problems solved by technology

[0002] With the development of digital production technology, the role of templates in aircraft manufacturing is getting weaker and weaker, but it is very difficult to design arc markings on templates or parts, especially when the arc radius is large

The traditional arc marking relies on the compass when the arc radius is small. Due to the different operation methods of the workers, the angle of the compass is easy to change during the rotation process, resulting in the change of the arc radius and low precision.

When the radius of the arc is large, use a ruler of equal length, one end is fixed by the worker, and the other end is fixed by another worker to fix the relative position of the pen and the ruler, and then the ruler is rotated to draw the arc, which wastes manpower and material resources, and affects the The production efficiency of the parts, and there are many human factors in the operation process, not only the success rate is low, but also the precision is low, which cannot meet the design requirements. In severe cases, the entire part will be scrapped and the quality of the aircraft product will be affected.

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