Center frame

The technology of a center frame and a roller frame is applied in the field of mechanical processing equipment, which can solve the problems of high requirements on the processing accuracy of hydraulic components, the rigidity of the center frame cannot be used, and the processing efficiency is reduced. , the effect of improving processing efficiency
CN108500652AInactive Publication Date: 2018-09-07CHANGZHOU COLLEGE OF INFORMATION TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGZHOU COLLEGE OF INFORMATION TECH
Publication Date
2018-09-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an automatic-centering center frame. The automatic-centering center frame is characterized by comprising a machine box, a driving device, a translation cam, an upper pressing rod assembly, a lower pressing rod assembly and pressing head assemblies. The translation cam is arranged in the machine box in a left-right sliding mode and driven by the driving device to move left and right. An upper pressing rod of the upper pressing rod assembly and a lower pressing rod are made to swing through the translation cam, so that the pressing head assemblies located on the upper pressing rod and the lower pressing rod and the pressing head assembly on the translation cam are gathered towards the axis of a workpiece to be machined at the same time, the workpiece to be machined issupported, a supporting wheel frame of each pressing head assembly can be automatically rotated according to the shape of the outer edge face of the workpiece to be machined, and it is ensured that two supporting wheels located on each supporting wheel frame are pressed on the workpiece to be machined at the same time.
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Description

technical field

[0001] The invention relates to the technical field of mechanical processing equipment, in particular to a center frame for auxiliary support for processing long-axis mechanical parts. Background technique

[0002] The center frame is an auxiliary support device used in the turning or grinding process of slender shaft parts, which makes it possible for high-precision machining of ultra-thin optical shafts, precision screw rods, ball screws and other parts. The conventional closed center frame used on horizontal lathes or cylindrical grinders is a combined structure of upper and lower two bodies, and three centripetal mandrels support the workpiece. When clamping the workpiece, it is necessary to open the upper body of the center frame, close the upper body after loading the workpiece, rotate the workpiece according to the circular runout value, adjust the axial movement of the mandrel, and achieve the coincidence between the support of the center frame and th...

Claims

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