Positioning mechanism for agricultural and forestry large-dimension round timber processing

Abstract

The invention discloses a positioning mechanism for agricultural and forestry large-dimension round timber processing, and relates to the technical field of wood processing. The positioning mechanismcomprises a bearing frame, an outer sleeve, an inner sleeve, a liquid inlet tube, a piston, an ejector pin and a drive mechanism. Clamping and positioning for one end of wound timber is realized through a way of fixing the bearing frame and moving the inner sleeve; compared with a conventional tail base positioning way, the positioning mechanism does not need to manually shake a rocker handle to realize movement of the tail base, and can realize positioning by only needing to introducing in hydraulic oil, so that a positioning process is simplified, and labor power is saved; meanwhile, a top plate is firstly in contact with the round timber, the round timber is locked by the ejector pin, and is finally pressurized until pressure achieves a set value, so that clamping and positioning of theround timber are realized, and clamping force is more precise; and meanwhile, a rotation condition, caused by too great torque, of the round timber is further prevented.

Description

technical field [0001] The invention belongs to the technical field of wood processing, and in particular relates to a positioning mechanism for processing large-size logs used in agriculture and forestry. Background technique [0002] In the existing log processing process, machine tools or lathes or similar equipment are often used for clamping and positioning, and subsequent surface processing operations such as peeling and finishing are performed manually or mechanically. [0003] In the process of clamping and positioning large-sized logs (large diameter and large length) by machine tools, manual rotation of the screw is often used. Although the purpose of clamping can also be achieved, the clamping force is difficult to achieve. To be sure, relying more on experience, it is not easy to control, and manual operation is less efficient. Especially for new employees, it is easy to happen that the clamping force of the log is too small to cause eccentricity during the rota...

AI Technical Summary

Problems solved by technology

[0003] In the process of clamping and positioning large-sized logs (large diameter and large length) by machine tools, manual rotation of the screw is often used. Although the purpose of clamping can also be achieved, the clamping force is difficult to achieve. Definitely rely on experience, it is not easy to control, and manual operation, the efficiency is low

Especially for new employees, it is easy to happen that the clamping force of the log is too small to cause eccentricity during the rotation process, or the clamping force is too large, the hand-cranking process is very laborious, and it is easy to damage the log in the morning

In addition, due to the large size of such logs, during processing, the logs are easily deflected in the axial direction due to excessive torque, or even eccentric, which affects the processing accuracy

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