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Fluid driving bending joint of spiral spring frame

A technology of helical springs and bending joints, which is applied in the direction of claw arms, manipulators, manufacturing tools, etc., can solve problems such as falling off, difficult machining accuracy, and inability to replace cylindrical elastic bodies separately, achieving small fluid flow, high dynamic control accuracy, The effect of easy axial deformation

Inactive Publication Date: 2007-03-21
JIANGNAN UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

(2) The cylindrical elastic body of the prior art, the helical spring, and the binding wire are all assembled on the clamping ring of the rotary clamping. Due to the manufacturing difference of the wall thickness of the front end shell of the cylindrical elastic body, it is necessary to ensure that the cylindrical elastic body is The clamping ring part is rotated and clamped, and at the same time, it is necessary to ensure that the installation of the binding wire and the protruding part of the spring wire of the coil spring are on the same plane (to ensure that the joint is bent in one direction without twisting), which can only be a single-piece production method. It is difficult to guarantee the processing accuracy, and the cylindrical elastic body cannot be replaced separately in use; during use, due to manufacturing and assembly reasons, the torque of the coil spring and the binding wire to the clamping ring that is rotated and clamped may cause a safety hazard that the cylindrical elastic body will fall off

Method used

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  • Fluid driving bending joint of spiral spring frame
  • Fluid driving bending joint of spiral spring frame
  • Fluid driving bending joint of spiral spring frame

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Embodiment Construction

[0028] Below the present invention will be further described in conjunction with the implementation of scheme I in the accompanying drawings:

[0029] The joint of plan I is mainly composed of intermediate section 1, head seat 2, large sealing ring 3, spring fixing seat 4, connecting sealing nut 5a, fastening shell 5b, elastic wave shell 5c, flange inner sleeve 5d, spring fixing pressure plate 6, Adjusting gasket 7, tailstock 8, small sealing ring 9, right-angle pipe joint 10, hose 11, thickness adjusting ring 12, tensioning wire seat 13, wire guide frame 14, tensioning screw 15, fixing screw 16, fixing wire 17, helical spring 18, annular weft 19, winding warp 20 etc. constitute.

[0030] Its specific implementation method is:

[0031] (1) The longitudinal section of the single-section elastic wave shell of the elastic wave shell 5c is in the shape of "V", "U" or "Ω". The warp wire 20 makes the elastic wave shell 5c not easily deformed in the radial direction and has a stron...

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Abstract

A flexible joint with spiral spring as its skeleton and driven by fluid for robot features that the axial extension at one side of spiral spring is restricted by a fixing wire and its another side can be axially extended, so realizing bending. When there is no external force, the bent angle of joint is relative to the air pressure in joint. When it is working, its action force is increased with the air pressure in it.

Description

Technical field: [0001] The invention relates to a helical spring framework fluid-driven bending joint, which can be used as elbows, legs and other joints of robots, and is also suitable for mechanical fingers composed of multiple bending joints, and multiple mechanical fingers can be combined The utility model relates to an operating manipulator, as an executive mechanism of automation equipment, and belongs to the technical field of robot and manipulator application. Background technique: [0002] Before the present invention was made, in the prior art, the axial expansion of the cylindrical elastic body driven by air pressure was arranged, and the bending of the joint was produced due to the limitation of one side elongation, and the flexible joint returned to the original state by the elastic action of the rubber tube ("Pneumatic Dynamic Joint") Mechanical fingers with limited degrees of freedom", "Hydraulic and Pneumatic", No. 8, 2004). The present invention overcomes ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25J18/00B25J18/02
Inventor 章军须文波吕兵
Owner JIANGNAN UNIV
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