Common rotative surface intersecting line generating instrument

Abstract

The invention provides a common rotative surface intersecting line generating instrument which comprises a base. A vertical guide rod is arranged on the side edge of the base, a transverse guide rod is arranged at the top end of the vertical guide rod, the transverse guide rod is provided with a sliding block which is fixed through a lock screw, and a drawing pen is arranged below the sliding block. The common rotative surface intersecting line generating instrument is characterized in that a rotary table is arranged in the middle part of the base, the rotary table is provided with a guide rail, the guide rail is provided with a sliding plate, the sliding plate is provided with a workbench through a first adjusting bolt, and then supports are arranged at the two ends of the workbench. According to the common rotative surface intersecting line generating instrument, through rotation of the rotary table and connection of the guide rail and the sliding plate, the supports both can make circumferential rotation and can make longitudinal displacement and transverse displacement, all-around adjusting is achieved, drawing of the common rotative surface intersecting line of a cylinder, a cone, a sphere and the like can be achieved through the matching of the generating instrument and the drawing pen, the instrument not only can be applied to teaching but also can be applied to manufacturing the intersecting line in the machine manufacturing process, and due to the fact that the workbench is matched with the supports, the intersecting line can be drawn more conveniently.

Description

technical field [0001] The invention relates to the scribing of intersecting lines of common revolving surfaces in the mechanical field, in particular to an instrument for generating intersecting lines of common revolving surfaces. Background technique [0002] At present, the course "Mechanical Drawing" in colleges and universities is regarded as a general course, which is a compulsory basic course for science and engineering students. Therefore, the number of students studying this course is large, and there are also many teaching aids for this course, and the main disadvantages of existing teaching aids are: [0003] 1) Since the model can only be seen but not moved, it is not conducive to cultivating students' practical ability and cannot be flexible. [0004] 2) Due to the large amount of use by students, manufacturing companies produce a large number of teaching models, with many varieties, but the price is relatively expensive. [0005] An important difficulty of th...

AI Technical Summary

Problems solved by technology

Therefore, the number of students studying this course is large, and there are also many teaching aids for this course, and the main disadvantages of existing teaching aids are:

[0003]1) Since the model can only be seen but not moved, it is not conducive to cultivating students' practical ability and cannot be flexible

[0004]2) Due to the large amount of use by students, manufacturing companies produce a large number of teaching models, with many varieties, but the price is relatively expensive

[0011] The above patent applications can only draw lines on pipes or cylinders, and cannot be applied to marking lines on other arc surfaces

In particular, there is no way to realize the intersecting lines of common surfaces of revolution such as cylinders, cones, and spheres in the intersecting positions of their axes such as orthogonal, oblique, offset, and parallel.

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