Hemispheric finishing grinding wheel for ultra-precision machining
An ultra-precision machining and hemispherical technology, which is applied in the direction of bonded grinding wheels, metal processing equipment, manufacturing tools, etc., can solve the problems that grinding cannot achieve free-form surface finishing, surface roughness is difficult to achieve, and polishing processing efficiency is low. The effect of improving finishing efficiency, practical mechanical structure and low cost of use
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[0018] Specific embodiment 1: A hemispherical smoothing grinding wheel for ultra-precision machining of this embodiment is specifically composed of an abrasive layer 1, a grinding wheel base 2 and a grinding wheel support 3 as figure 1 Shown
[0019] The grinding wheel base 2 is composed of a hemisphere 2-1, a fixed plate 2-2 and a positioning hole 2-3 Figure 3a As shown in and b, the hemisphere 2-1 is arranged on the fixing plate 2-2, and a positioning hole 2-3 with a radius r and a depth smaller than the thickness of the fixing plate is arranged at the center of the fixing plate 2-2;
[0020] The grinding wheel support 3 is composed of a positioning boss 3-1, a support plate 3-2 and a grinding wheel rod 3-3;
[0021] The positioning boss 3-1 is located at the center of the upper end of the support plate 3-2, the grinding wheel rod 3-3, the positioning boss 3-1 and the support plate 3-2 are coaxial, and the grinding wheel rod 3-3 is used to support the support plate 3. -2 as Figu...
Example Embodiment
[0025] Specific embodiment two: this embodiment is different from specific embodiment one in that: the thickness of the abrasive layer 1 ranges from 5 to 10 mm; the abrasive layer 1 is composed of abrasives and bonding agents, wherein the abrasives are diamond or cubic nitride One of boron, silicon carbide or corundum, and the type of bonding agent is one of metal, ceramic or resin. Other steps and parameters are the same as in the first embodiment.
Example Embodiment
[0026] Specific embodiment three: This embodiment is different from specific embodiment one or two in that: the adhesive used for the bonded abrasive layer 1 and the hemisphere 2-1, the fixing plate 2-2 is bonded to the supporting plate 3- 2 Adhesives used and bonding of the fixing plate 2-2 and the support plate 3-2 The adhesives used are high temperature resistant adhesives, among which the high temperature resistant adhesives are high temperature resistant epoxy adhesives or high temperature resistant phenolic resin adhesives. Other steps and parameters are the same as those in the first or second embodiment.
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