CN106908928A - Fastening and dismounting device for lens pressing ring - Google Patents

Abstract

The invention belongs to the field of assembling and disassembling of an aerospace lens pressing ring, and particularly relates to a fastening and disassembling device for a lens pressing ring. The clamping ring clamping device is used for solving the problems that an ordinary wrench in the prior art cannot meet the size requirements of clamping ring fastening and dismounting, the working effect is not stable enough, and the scratch on the surface of a lens is easily caused. Including twist grip, torsion bar, clamping ring chuck, position sleeve and card, twist grip passes through torsion bar and clamping ring chuck middle part fixed connection, and the position sleeve suit is on the torsion bar and lie in between twist grip and the clamping ring chuck, and the position sleeve inner wall cooperatees with the picture frame outer wall, sets up two draw-in grooves on the clamping ring chuck periphery at least, and the card setting is in the draw-in groove.

Description

A fastening and dismounting device for lens pressure ring

technical field

The invention belongs to the field of assembly and disassembly of aerospace lens rings, in particular to a fastening and dismounting device for lens rings.

Background technique

At present, the lens diameter of ultra-high-precision aerospace lenses is relatively large, and ordinary wrenches cannot meet the size requirements for fastening and dismounting of the pressure ring. At the same time, optical glass has very high requirements for preventing scratches. In the middle, it is easy to cause scratches on the surface of the lens. The Chinese patent with publication number 203311070U (publication date: 2013-11-27) solves the multi-size adaptation problem in the working condition through the movable clamping plate, but it cannot guarantee stable rotation and non-slip during the working process, and still exists Risk of scratching the lenses.

Contents of the invention

The object of the present invention is to provide a fastening and dismounting device for the lens clamping ring, which is used to solve the problem that the ordinary wrench in the prior art cannot meet the size requirements for fastening and dismounting the clamping ring, the working effect is not stable enough, and it is easy to cause The problem of scratches on the surface of the lens.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A fastening and dismounting device for lens clamping ring, which is special in that it includes a rotating handle, a torsion bar, a clamping ring chuck, a positioning sleeve and a card, and the rotating handle passes through the middle part of the clamping ring chuck through the torsion bar Fixed connection, the positioning sleeve is set on the torsion bar and is located between the rotating handle and the pressure ring chuck, the inner wall of the positioning sleeve matches the outer wall of the frame, at least two card slots are set on the outer circumference of the pressure ring chuck, and the card is set on the card in the slot.

Further, in order to better coaxially position the pressure ring chuck and the mirror frame, the positioning sleeve is in the shape of a bottle cap.

Further, the pressure ring chuck is in the shape of a bottle cap.

Further, in order to observe the real-time situation of inserting the card into the card slot conveniently from the upper part, several observation holes are provided on the positioning sleeve and the pressure ring chuck.

Further, the positioning sleeve is made of polytetrafluoroethylene.

The beneficial effects of the present invention are:

1. Due to the good positioning protection function of the positioning sleeve, the device can rotate stably without slipping, preventing the lens from being scratched;

2. The pressure ring chuck, card and positioning sleeve can be customized according to the size of the lens, which are replaceable and easy to use.

Description of drawings

Fig. 1 is the structural explosion diagram of embodiment;

Fig. 2 is a schematic diagram of the working state of the embodiment.

In the figure, 1-rotary handle, 2-positioning sleeve, 3-torsion bar, 4-holding ring chuck, 5-card slot, 6-card, 7-holding ring, 8-lens, 9-frame, 10-pressure Ring groove, 11-observation hole.

detailed description

The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

As shown in Figure 1, the embodiment provides a fastening and dismounting device for the lens clamp, including a rotating handle 1, a torsion bar 3, a clamping chuck 4, a positioning sleeve 2 and a card 6, and the rotating handle 1 is twisted The rod 3 is fixedly connected to the middle part of the pressure ring chuck 4, the positioning sleeve 2 is set on the torsion bar 3 and is located between the rotary handle 1 and the pressure ring chuck 4, the inner wall of the positioning sleeve 2 matches the outer wall of the mirror frame 9, and the pressure ring chuck 4. Eight card slots 5 are arranged on the outer periphery, and cards 6 are arranged in the card slots 5. In order to better coaxially position the ring chuck 4 and the frame 9 , the positioning sleeve 2 is in the shape of a bottle cap, and the inner diameter of the positioning sleeve 2 is larger than the outer diameter of the ring chuck 4 . In order to facilitate the real-time observation of the insertion of the card 6 into the card slot 5 from the upper part, a plurality of observation holes 11 are respectively provided on the positioning sleeve 2 and the pressure ring chuck 4 . The positioning sleeve 2 is made of polytetrafluoroethylene.

As shown in Figure 2, when fastening the pressure ring, put the pressure ring 7 into the frame 9, insert the card 6 into the card slot 5, insert the protruding part of the card 6 into the groove 10 of the pressure ring, clamp the positioning sleeve 2 on the outer wall of the frame 9, and place the Turn the rotary handle 1 clockwise to tighten the pressure ring. In the same way, counterclockwise is to remove the pressure ring.

Claims (5)

1. a kind of fastening and provision for disengagement for camera lens trim ring, it is characterised in that：Including rotary handle, torsion bar, trim ring chuck, Positioning sleeve and card, the rotary handle are fixedly connected by torsion bar with trim ring chuck middle part, and positioning sleeve is sleeved on torsion bar simultaneously Between rotary handle and trim ring chuck, positioning sleeve inwall is engaged with picture frame outer wall, on trim ring chuck periphery at least provided with Two draw-in grooves, card is arranged in the draw-in groove.

2. a kind of fastening and provision for disengagement for camera lens trim ring according to claim 1, it is characterised in that：The positioning Set is in bottle lid-like.

3. a kind of fastening and provision for disengagement for camera lens trim ring according to claim 2, it is characterised in that：The trim ring Chuck is in bottle lid-like.

4. a kind of fastening and provision for disengagement for camera lens trim ring according to claim 3, it is characterised in that：The positioning Some peep holes are provided with set and trim ring chuck.

5. a kind of fastening and provision for disengagement for camera lens trim ring according to claim 4, it is characterised in that：The positioning Set is made up of polytetrafluoroethylene (PTFE).