Mounting head assembly for stably clamping lens

Abstract

The invention relates to the field of lens machining, and provides a mounting head assembly for stably clamping a lens. According to the technical scheme, the mounting head assembly for stably clamping the lens comprises a mounting head (1) and a buffer pad (3) for pressing the lens (7), wherein a limit groove (2) for pressing the buffer pad (3) is arranged on a grinding surface of the mounting head (1); the mounting head assembly for stably clamping a lens is characterized in that an inner groove (4) with a smaller caliber than the caliber of the limiting groove (2) is formed in the bottom surface of the limiting groove (2); and a through hole (5) directly communicating with the outer surface of the grinding surface of the mounting head (1) is formed in the inner groove (4). According tothe technical scheme, the lens (7) is tightly pressed on the mounting head (1), and the grinding precision is improved.

Description

technical field [0001] The invention relates to the field of lens processing, in particular to a mounting head assembly for stably clamping lenses. Background technique [0002] The existing lens lens radian grinding assembly is composed of a mounting head for placing a fixed lens and a grinding head matched with the mounting head. Figure 1-2 As shown, when the concave surface is polished, the mounting head surface is spherically concave, and the corresponding grinding head surface is spherically convex with the same radian; when the convex surface is polished, the mounting head surface is spherically convex, and the corresponding grinding head surface is spherically concave with the same radian Shape, the surface of the installation head and the surface of the grinding head fit each other; there is a limit groove for placing the lens on the installation head, because the installation head is made of metal, the lens will vibrate during grinding, and it is easy to collide wit...

AI Technical Summary

Problems solved by technology

[0002] The existing lens lens radian grinding assembly is composed of a mounting head for placing a fixed lens and a grinding head matched with the mounting head. Figure 1-2 As shown, when the concave surface is polished, the mounting head surface is spherically concave, and the corresponding grinding head surface is spherically convex with the same radian; when the convex surface is polished, the mounting head surface is spherically convex, and the corresponding grinding head surface is spherically concave with the same radian Shape, the surface of the installation head and the surface of the grinding head fit each other; there is a limit groove for placing the lens on the installation head, because the installation head is made of metal, the lens will vibrate during grinding, and it is easy to collide with the installation head to cause damage. To avoid damage to the lens, a cushion made of plastic is usually placed in the limit slot to buffer and absorb shock between the limit slot and the lens. Usually the lens is tightly pressed on the cushion, and the cushion is tightly pressed. in the limit slot

When the lens is polished, it is necessary to continuously inject water to reduce the damage of the lens. The liquid is easy to penetrate through the gap between the cushion pad and the limit groove, and the water pressure is easy to push the cushion pad together with the lens, which affects the precision of lens polishing; On the one hand, due to the tight fit between the cushion pad and the limiting groove, when the cushion pad is pressed into the limiting groove, it is easy to leave air between the cushion pad and the limiting groove and it is difficult to discharge, which eventually causes the lens to protrude slightly and cannot be completely The pressing to the end makes the lens excessively polished and affects the accuracy

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