Outer clamping ring pre-tightening mechanism and method

A technology of pre-tightening mechanism and outer pressure ring, which is applied in the direction of wrench, screwdriver, manufacturing tools, etc., can solve the problems of difficult quantifiable torque, lens fragmentation, etc., and achieve the effect of reducing operation time, improving safety, and enhancing operability

Pending Publication Date: 2021-05-25
哈尔滨新光光电科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One purpose of the present invention is to solve the defect that the lens outer pressure ring tightening and fixing method in the prior art is easy to cause the lens to be broken and the torque is not easy to quantify

Method used

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  • Outer clamping ring pre-tightening mechanism and method
  • Outer clamping ring pre-tightening mechanism and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] The outer pressure ring pretensioning mechanism of an embodiment of the present invention is as figure 1 As shown, it includes: a fixed seat 3 provided with a groove; a torque wrench connecting seat 2 arranged in the fixed seat 3; and at least one claw 1 arranged around the fixed seat 3; the claw 1 has a raised portion, and the convex The starting part can cooperate with the outer pressing ring and the groove of the fixing seat. The outer pressure ring pre-tightening mechanism may also include a lens protection ring 4 located inside the fixing seat 3 and arranged on the lens.

[0022] figure 2 show figure 1 Sectional view of the device.

[0023] Specifically, the function of the outer pressure ring 5 is to fix the lens. There are threads on the inner side of the outer pressure ring 5 and the edge of the lens 6. The traditional method is to manually tighten it. This tightening method has both a tangential force along the edge of the lens 6. There is also the force o...

Embodiment approach 2

[0027] This embodiment provides a method for pre-tightening the outer ring, which is realized based on the pre-tightening mechanism for the outer ring in the first embodiment. The method of this embodiment includes: setting the outer pressure ring on the lens; matching the protrusion on the claw with the groove of the outer pressure ring and the fixing seat; installing the torque wrench on the torque wrench connecting seat, and rotating the torque wrench Tighten the outer pressure ring on the lens; adjust the pressure of the outer pressure ring on the lens according to the reading on the torque wrench when turning the torque wrench, so that the reading does not exceed the preset threshold.

[0028] Further, before the above steps are performed, the following steps may also be included: predetermine the torque value required to tighten the outer pressure ring; when the torque wrench is rotated, when the torque wrench reading reaches the torque value, it is determined that the ou...

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PUM

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Abstract

The invention relates to the field of optical lens structural parts, and particularly relates to an outer clamping ring pre-tightening mechanism. The outer clamping ring pre-tightening mechanism is used for overcoming the defects that in the prior art, lenses are easy to break due to a lens outer clamping ring tightening and fixing mode, and torque is not easy to quantify. The outer clamping ring pre-tightening mechanism comprises a fixed seat, a torque wrench connecting seat and at least one claw, the fixed seat is provided with grooves; the torque wrench connecting seat is arranged in the fixed seat; the at least one claw is arranged on the periphery of the fixed seat; and each claw is provided with a protruding part, and the protruding parts can be matched with outer clamping rings and the grooves of the fixed seat. The invention further comprises an outer clamping ring pre-tightening method. The method comprises the steps that the outer pressing rings are arranged on the lenses; the protruding parts on the claws are matched with the outer clamping rings and the grooves of the fixed seat; a torque wrench is installed on the torque wrench connecting seat, and the torque wrench is rotated to enable the outer clamping rings to be tightly screwed on the lenses; and when the torque wrench is rotated, the pressure of the outer clamping rings on the lenses is adjusted according to the reading on the torque wrench, so that the reading does not exceed a preset threshold value all the time. The outer clamping ring pre-tightening mechanism and the method are suitable for assembling the outer clamping rings of an optical-mechanical structure.

Description

technical field [0001] The invention relates to the field of optical lens structural parts, in particular to an outer pressure ring pre-tightening mechanism and a pre-tightening method. Background technique [0002] The lens press ring is an indispensable structural part in the optical mechanical structure. When the lens barrel is assembled, the lens and the spacer are sequentially loaded into the lens barrel, and finally screwed into the press ring to fix the above parts. Since the lens is a brittle material, the fixing torque If the fixing torque is too large, the lens will be broken; if the fixing torque is too small, the lens will not be pressed tightly, resulting in poor stability of the lens or cracking during the mechanical test. Therefore, the axial direction of the lens is limited by a reasonable clamping torque. The pre-tightening force is very important, and the outer pressure ring of the lens, due to its special structure, has not been able to visually tighten an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B23/142
CPCB25B23/142
Inventor 刘国鑫李延伟高清京
Owner 哈尔滨新光光电科技股份有限公司
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