Grinding head connecting device based on parallelogram mechanisms
A parallelogram and connecting device technology, used in optical surface grinders, grinders, grinding/polishing equipment, etc., can solve the problems of difficult control, difficult to guarantee rigidity and strength, complex structure, etc., to improve efficiency, improve bearing capacity and The effect of positioning accuracy
Active Publication Date: 2016-12-21
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
However, the connection device of the stress plate has always followed the foreign method, the structure is complicated, it is difficult to control, and the rigidity and strength are difficult to guarantee
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[0013] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
[0014] as attached figure 1 As shown, the present invention provides a grinding head connecting device based on a parallelogram mechanism, which includes a mandrel 1, an upper triangular plate 2, a vertical rod 3, a lower triangular plate 4, a grinding head disc surface 5, a spherical joint bearing I6, a cross shaft Ⅰ7, cross shaft Ⅱ8, spherical joint bearing Ⅱ9 and ball head 10;
[0015] The cross shaft I7 and the cross shaft II8 are axially mounted on the mandrel 1, the cross shaft I7 is connected with the upper triangle plate 2, and the upper triangle plate 2 has the freedom of rotation around the two mutually perpendicular axes of the cross shaft I7, The upper triangular plate 2 also has the degree of freedom to rotate around the axis of the core 1; the cross axis II8 is connected with the lower triangular plate 4, the lower triangular plate 4 has ...
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The invention discloses a grinding head connecting device based on parallelogram mechanisms and belongs to the technical field of precision optical machining devices. The grinding head connecting device comprises a core shaft, a grinding head disk surface, vertical rods, ball heads, an upper triangle plate and a lower triangle plate. The core shaft is perpendicularly installed on the upper triangle plate and the lower triangle plate. The three vertical rods are connected with the vertex angles of the upper triangle plate and the vertex angles of the lower triangle plate through spherical joint bearings, so that the three parallelogram mechanisms are formed. After the lower ends of the vertical rods are hinged to the spherical surface of the grinding head disk surface through the ball heads, a space geometry structure is formed. The space geometry structure enables the grinding head disk surface to rotate in the two directions perpendicular to the two axes of the core shaft and meanwhile limits rotating of the grinding head disk surface relative to the axes of the core shaft and translational motion of the grinding head disk surface in the directions perpendicular to the axes of a main shaft. According to the grinding head connecting device based on the parallelogram mechanisms, the effect that a grinding head and the main shaft have the freedom degree required by machining and meanwhile have high stiffness and strength can be ensured.
Description
technical field [0001] The invention relates to a connecting device for machining a curved mirror, in particular to a connecting device for realizing the bonding between a machining grinding head and a mirror surface by using a cross axis and a parallelogram mechanism, and belongs to the technical field of precision optical machining. Background technique [0002] Large-diameter aspherical mirrors play an important role in modern optical systems, but large-diameter aspherical surfaces require high material removal efficiency for processing methods, and commonly used small tools have low polishing efficiency and are difficult to meet the requirements. The University of Arizona invented the stress disk technology to improve the processing efficiency of large-aperture aspheric surfaces. It adopts the method of active deformation and uses a large-diameter grinding head to improve the processing efficiency of large-diameter mirrors. Changchun Optical, Fine Mechanics and Physics Re...
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IPC IPC(8): B24B13/01
CPCB24B13/01
Inventor 张学军罗霄薛栋林李锐钢郑立功
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI