This standard specifies the method for expressing the inherent directionality and direction of motion of industrial products and the principle of directional consistency between the manipulator and the controlled object. This standard applies to the design, manufacture and use of all products related to directionality, direction of motion and control direction. GB/T 14777-1993 Geometric orientation and direction of motion GB/T14777-1993 standard download decompression password: www.bzxz.net
This standard specifies the method for expressing the inherent directionality and direction of motion of industrial products and the principle of directional consistency between the manipulator and the controlled object. This standard applies to the design, manufacture and use of all products related to directionality, direction of motion and control direction.

National Standard of the People's Republic of China
Geometrical orientation and direction of movement bzxz.net
Geometrical orientation and direction of movement This standard adopts the international standard JS01503-1977 Geometrical orientation and direction of movement 1 Subject content and scope of application
GB/T14777-93
This standard defines the method of expressing the orientation and direction of movement of industrial products and the principle of consistency of direction between manipulators and controlled objects.
This standard applies to the design, manufacture and use of all products related to orientation, direction of movement and control direction. 2 Terminology
2.1 Direction
The direction from one point to another in space. 2.2 Object
The object to be described and determined in terms of direction
2.3 Orientation
The inherent property of the object itself with respect to direction. 2.4 Center point
The reference point set for geometric orientation and direction determination of the object. 2.5 Axis
Three mutually perpendicular reference lines set through the center point, namely the front-back axis, the right axis and the up-down axis. 2.5.1 Front-back axis (X axis): The straight line connecting the front and back through the center point of the object. Indicated by the axis X on the diagram (see Figure 1, Figure 4 and Figure 5).
2.5.2 Left-right axis (Y axis): A line connecting the left and right points through the center point of the object. Indicated by the axis Y on the diagram (see Figure 1, Figure 4 and Figure 6).
2.5.3 Up-down axis (2 axis): A line connecting the upper and lower points through the center point of the object. Indicated by the axis Y on the diagram (see Figure 1, Figure 4 and Figure 6).
2.6 Base planes
Three set planes that pass through the perpendicular points of the center points. Each plane contains two axes of the object. The three planes are; base plane, front-back plane and left-right plane. 2.6. 1 Base plane: A plane formed by the front-back axis (X axis) and the left-right axis (Y axis). Indicated by on the diagram (see Figure 4). 2.6.2 Front-back plane: A plane formed by the front-back axis (X axis) and the up-down axis (7 The plane formed by the left and right axes. It is represented by Pz in the figure (see Figure 5). 2.6.3 The plane of the storage direction: the left and right axes
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