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Radial positioning unit and positioning clamping device for internal grinding of thin-walled cylindrical workpieces

A clamping device and thin-walled tube technology, which is applied in the direction of grinding workpiece support, grinding/polishing equipment, and machine tools designed for grinding the rotating surface of workpieces, etc., can solve the problem of low positioning accuracy and difficulty in adapting to the automatic adjustment of the central axis of the workpiece , clamping deformation and other problems, to achieve the effect of improving positioning accuracy, not easy clamping deformation, and uniform force

Active Publication Date: 2017-10-24
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to provide a new type of workpiece positioning and clamping device to overcome the above-mentioned existing positioning and clamping devices that have clamping deformation, low positioning accuracy, difficulty in automatically adjusting the central axis to adapt to changes in the outer diameter of the workpiece, and easy to scratch the surface. Insufficient, to ensure the precision grinding of the inner hole of the thin-walled cylindrical workpiece

Method used

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  • Radial positioning unit and positioning clamping device for internal grinding of thin-walled cylindrical workpieces
  • Radial positioning unit and positioning clamping device for internal grinding of thin-walled cylindrical workpieces
  • Radial positioning unit and positioning clamping device for internal grinding of thin-walled cylindrical workpieces

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Embodiment Construction

[0028] Such as Figure 1-Figure 3 As shown, a radial positioning unit for internal grinding of thin-walled cylindrical workpieces includes a support base 20 and a support cover 15, one end of the support cover 15 is pivotally connected to the support base 20, and the support cover 15 can be wound around the support base The pin shaft 14 on the 20 rotates, the support base 20 is provided with a clamping curved surface I25, and the support cover 15 is provided with a clamping curved surface II26, so that the support base 20 and the support cover 15 can align The workpiece is clamped, and the support cover 15 and the support base 20 are set to be hollow, allowing the workpiece 7 to pass through the middle. The support base 20 is provided with a support cover that can be fixed when the support cover 15 and the support base 20 are fastened. 15, the clamping curved surface I25 is provided with a concave structure to form a hydraulic chamber I18, and the clamping curved surface II26 ...

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Abstract

The invention discloses a radial locating unit and locating and clamping device for internal grinding of thin-walled cylinder workpieces, belonging to the technical field of machining processes. The radial locating unit comprises a supporting base and a supporting cover, wherein one end of the supporting cover is pivoted to the supporting base; the supporting base is provided with a clamping curved surface I, and the supporting cover is provided with a clamping curved surface II, so that workpieces are clamped; the supporting base is provided with a fixing part capable of fixing the supporting cover when the supporting cover and the supporting base are buckled; the clamping curved surface I is provided with inward concave structures to form hydraulic chambers I; the clamping curved surface II is also provided with inward concave structures to form hydraulic chambers II; and the locating and clamping device also comprises a hydraulically-supported axial locating driving unit. The radial locating unit and the locating and clamping device are uniform in clamping force, difficult to deform, more suitable for internal grinding of workpieces with small diameters and capable of improving the locating rigidity and precision, avoiding damage of the surfaces of the workpieces, effectively cooling grinding wheels and the workpieces and reducing thermal strain.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing technology, and relates to a positioning clamping device, in particular to a radial positioning unit and a positioning clamping device for internal grinding of thin-walled cylindrical workpieces. Background technique [0002] In the field of machinery, thin-walled cylindrical workpieces with a ratio of the wall thickness of the workpiece to the radius of curvature of the inner diameter of less than 1:20 are usually used, and the wall thickness is generally less than 5mm. The thin-walled cylindrical workpiece has the characteristics of poor rigidity, and it is easy to deform during the processing and clamping process, and the processing quality of the workpiece is not easy to guarantee. Especially in some aerospace fields with high performance requirements, for example: most of the thin-walled workpieces such as the landing gear outer cylinder are related to the performance of the air...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B41/06B24B5/40
CPCB24B5/40B24B41/067
Inventor 朱祥龙康仁科董志刚高尚郭东明宋德波
Owner DALIAN UNIV OF TECH
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