Automatic middle return mechanism

Abstract

The invention discloses an automatic middle return mechanism which comprises an installing panel (2), a locating bottom plate (1) and a center shaft (8). The automatic middle return mechanism is characterized in that the center shaft (8) is installed in the middle of the installing panel (2) in a penetrating mode, the locating bottom plate (1) is connected to the installing panel (2), a spring base (3) is connected to the upper portion of the locating bottom plate (1), a spring (4) is installed in the spring base (3), the center shaft (8) is sleeved with the spring (4), an adjusting nut (5) is installed on the upper portion of the spring (4), a fastening nut (7) is arranged outside the adjusting nut (5), the spring base (3) and the locating bottom plate (1) are matched in a spherical face mode, the locating bottom plate (1) is a concave spherical face, the spring base (3) is a convex spherical face, and an adjusting gasket (6) is installed on the adjusting nut (5). The automatic middle return mechanism is compact in structure, convenient to operate, reliable to carry, high in precision and suitable for use and popularization in automatic middle return.

Description

technical field [0001] The invention belongs to the technical field of centering devices, and in particular relates to an automatic centering mechanism. Background technique [0002] The centering device is an indispensable part in the machinery industry. In the prior art, the multi-axial self-centering mechanism is composed of the following parts: return spring A9, adjusting bolt 10, return spring B11, connection frame A12, return spring C13, return spring D14, connection frame B15, Bracket A16, B17 (such as figure 2 shown). The mechanism uses two sets of return springs to provide the self-returning force for the joystick, the return spring C13 and the return spring D14 provide the return force for the bracket A16, the return spring A9 and the return spring B11 provide the return force for the bracket B17 , and can be controlled by adjusting the spring force of the bolt 10. [0003] The main disadvantages of this structure are as follows: 1) Two sets of springs are requ...

AI Technical Summary

Problems solved by technology

[0003] The main disadvantages of this structure are as follows: 1) Two sets of springs are required to provide the respective axial return force, which makes the space occupied by the mechanism large; Time inertia makes the positioning of the product self-centering unreliable; 3) The structure is relatively complex and the number of parts is large, resulting in a product weight that cannot be reduced

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