CN218600819U

CN218600819U - Auxiliary tool for optical lens goniometer

Info

Publication number: CN218600819U
Application number: CN202222778184.7U
Authority: CN
Inventors: 邓春伟; 李阳; 肖正生
Original assignee: Fujian Holbit Technology Co ltd
Current assignee: Fujian Holbit Technology Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-03-10
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses an auxiliary fixtures with optical lens goniometer, including displacement platform and auxiliary assembly, the displacement platform top is equipped with the platen, and auxiliary assembly includes base plate and side arm, and the base plate is installed on the platen, and two sides at the base plate are fixed to the side arm symmetry, and the side arm is the slope form, and auxiliary assembly still includes the slide rail, slider and locating part, and the slide rail is fixed on the side arm, and the slider nestification is on the slide rail, and the locating part is installed and is used for offsetting with the vertical lens of placing on the base plate on the slider, the utility model discloses an equipment auxiliary assembly on the platen lets the clamp plate top come to laminate the lens side and push down to the top at lens horizontal diameter line, then let two spacer pins clip the edge at the front and back both ends of lens to limit the lens about the axle, swing range around, from this come to assist the clamping to the lens, avoid the lens to take place the swing, rock and the condition of empting.

Description

Auxiliary tool for optical lens goniometer

Technical Field

The utility model relates to a lens field of measuring, specific is an auxiliary fixtures who uses optical lens goniometer.

Background

For optical lens research manufacturers, determining the index of refractive index performance of the product is an important basic content, and currently, the refractive index of an optical material is usually measured by an angle measuring method by using a goniometer. Namely: the tested optical lens is placed on a lens seat of a displacement table, and the refractive index of the test light beam is determined by deflecting the direction angle of the light after passing through the lens.

When the lens is installed on the goniometer, some thicker lenses, such as the clamping piece with the thickness of more than 10mm, which cannot be packaged, are usually placed on a bedplate of a displacement table to place a vertical lens, the thickness of the lens is utilized to support the lens, and some lenses with small thickness but large diameter have the risk of shaking and toppling over, so that an operator also has the risk of carelessly contacting and losing hands to knock over the lenses when adjusting the displacement table, and hidden troubles are left for use.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides an auxiliary fixtures with optical lens goniometer, including displacement platform and auxiliary assembly, the displacement platform top is equipped with the platen, auxiliary assembly installs on the platen, auxiliary assembly includes base plate and side arm, the substrate mounting is on the platen, two sides at the base plate are fixed to the side arm symmetry, and the side arm is the interval that the interval on slope form and two side arm tops is greater than the bottom, auxiliary assembly still includes the slide rail, slider and locating part, the slide rail is fixed on the side arm, the slider nestification is on the slide rail, the locating part is installed and is used for offsetting with the vertical lens of placing on the base plate on the slider.

Furthermore, the top surface of the substrate is provided with a groove with a circular arc-shaped bottom surface, the groove is arranged at the middle position, namely the axis of the circular arc surface of the bottom surface of the groove and the central line of the top surface of the substrate are on the same vertical plane, and the groove is utilized to quickly position the middle position.

Furthermore, the locating part includes locating plate, threaded rod and clamp plate, the one end of locating plate is installed on the slider, and the locating plate other end is fixed with the nut of the directional lens direction of axis, and the threaded rod passes through the threaded engagement on the nut of locating plate, and the clamp plate is fixed on the threaded rod and is close to the one end of lens, and the top of clamp plate parallels with the axis of the lens of placing on the base plate, comes to laminate the lens side with the clamp plate top and pushes down, and the threaded rod can come the control length that stretches out according to actual need to the position of control preforming pressure on the lens.

Further, the one side that is close to the lens on the clamp plate is equipped with two spacer pins, and the interval of two spacer pins is greater than the thickness of the lens of placing on the base plate, and the difference of the two is not more than 1 millimeter, and the long limit that two spacer pins are adjacent is mutually perpendicular with the top of clamp plate, when utilizing the clamp plate top to come to laminate the lens side and push down, still utilizes the spacer pin at both ends to limit the swing range of lens at the Z axle to avoid the lens swing, rock and empty.

Furthermore, a horizontal strip-shaped groove is formed in the pressing plate, a protrusion which is embedded with the strip-shaped groove is formed in the limiting pin, the limiting pin is fixed on the pressing plate through a bolt, and the distance between the limiting pins can be adjusted as required.

Furthermore, the threaded rod is not being equipped with the nested cover of twisting of one end of stationary platen, and the person of facilitating the use rotates the threaded rod.

Advantageous effects

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses an equipment auxiliary assembly on the platen, place back in the recess of base plate at the lens, let the clamp plate top come to laminate the lens side and push down, and the top is in the top of lens horizontal diameter line, then let two spacer pins clip the edge at the front and back both ends of lens, thereby limit the lens about the axle, the swing range of front and back, thereby avoid the lens swing, rock and empty, from this to assist the clamping to the lens, avoid the lens to only rely on self thickness to support and take place the swing, rock and the condition of empting, also avoid simultaneously taking place the swing at the in-process that adjusts to the displacement platform, rock and the condition of empting.

Drawings

Fig. 1 is a three-dimensional schematic diagram of a conventional lens goniometer tool.

Fig. 2 is the utility model discloses optical lens piece goniometer auxiliary fixtures's three-dimensional schematic diagram.

Fig. 3 is a three-dimensional structure diagram of the auxiliary assembly.

Fig. 4 is a three-dimensional schematic diagram of a stopper.

In the figure: A. a lens base; B. a lens; 1. a displacement stage; 1a, a bedplate; 2. an auxiliary component; 21. a substrate; 22. a side arm; 23. a slide rail; 24. a slider; 25. a limiting member; 251. positioning a plate; 252. a threaded rod; 253. pressing a plate; 254. a spacing pin; 255. and (5) screwing the sleeve.

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings.

Examples

As shown in fig. 1-4, the utility model provides an auxiliary fixtures for optical lens goniometer, platen 1a that is equipped with including displacement platform 1 and displacement platform 1 top, five displacement platform 1 can be selected to the displacement platform, in prior art, platen 1a only places a microscope base a usually and places vertical lens B, in this embodiment, be equipped with auxiliary assembly 2 and install on platen 1a, wherein, auxiliary assembly 2 includes base plate 21 and side arm 22, base plate 21 installs on platen 1a, two sides at base plate 21 are fixed to side arm 22 symmetry, and side arm 22 is the slope form and the interval at two side arm 22 tops is greater than the interval of bottom, auxiliary assembly 2 still includes slide rail 23, slider 24 and locating part 25, slide rail 23 is fixed on side arm 22, slider 24 nests on slide rail 23, locating part 25 installs on slide rail 24 and is used for offsetting with vertical lens B of placing on base plate 21.

As shown in fig. 2 and 3, in order to perform fast positioning, a groove with a circular arc bottom surface is formed in the top surface of the base plate 21 at the middle position of the lens B to be placed, the groove is formed in the middle position, that is, the axis of the circular arc surface of the bottom surface of the groove and the central line of the top surface of the base plate 21 are on the same vertical plane, and the groove is used to perform fast positioning of the middle position of the lens B.

As shown in fig. 3 and 4, the limiting member used includes a positioning plate 251, a threaded rod 252 and a pressing plate 253, one end of the positioning plate 251 is mounted on the slider 24, and a nut whose axis points to the direction of the lens B is fixed at the other end of the positioning plate 251, which is optional by those skilled in the art, a flat positioning plate 251 may be used, and then the nut and the positioning plate 251 are vertically welded, or as shown in fig. 3 and 4, a bent positioning plate 251 is used, both ends of the positioning plate 251 are bent to be perpendicular to each other, and then the nut is welded and fixed on one end of the positioning plate 251 facing the lens B, the threaded rod 252 is engaged with the nut of the positioning plate 251 through threads, the pressing plate 253 is fixed on one end of the threaded rod 252 close to the lens B, the top end of the pressing plate 253 is parallel to the axis of the lens B placed on the base plate 21, the top end of the pressing plate 253 is used for attaching and pressing down the side surface of the lens B, and the threaded rod 252 can control the extending length according to the actual requirement, thereby controlling the position of the pressing plate pressed on the lens B.

Moreover, as shown in fig. 3 and 4, one side of the pressing plate 253 close to the lens B is provided with two limit pins 254, the distance between the two limit pins 254 is greater than the thickness of the lens B placed on the substrate 21, the difference between the two limit pins is not greater than 1 mm, the adjacent long edges of the two limit pins 254 are perpendicular to the top end of the pressing plate 253, when the top end of the pressing plate 253 is used for laminating and pressing down the side surface of the lens B, the limit pins 254 at the two ends are used for limiting the swing amplitude of the lens B on the Z axis, so that the lens B is prevented from swinging, shaking and falling.

Meanwhile, as shown in fig. 3 and 4, a horizontal strip-shaped groove is formed in the pressing plate 253, a protrusion which is nested with the strip-shaped groove is formed in the limiting pin 254, and the limiting pin 254 is fixed on the pressing plate 253 through a bolt, so that the distance between the limiting pins 254 can be adjusted as required.

When the auxiliary clamping device is used, the limiting piece 25 is lifted, the threaded rod 252 is nested with the screwing sleeve 255 at one end without the fixed pressing plate 253, the threaded rod 252 is rotated by pinching the screwing sleeve 255, the extending length of the threaded rods 252 at two ends is further adjusted, the lens B is vertically placed on the base plate 21, the limiting piece 25 is placed down, the top end of the pressing plate 253 is enabled to be attached to the side surface of the lens B and is pressed down, and the side surface of the lens B is propped against the upper part of the horizontal diameter line of the lens B, then the distance between the limiting pins 254 is adjusted, the two limiting pins 254 clamp the edges of the front end and the rear end of the lens B, and the limiting pins 254 at two ends are utilized to limit the left-right and front-back swinging amplitude of the lens B in the Z axis, so that the lens B is prevented from swinging, swinging and toppling, and is prevented from being subjected to auxiliary clamping in the adjusting process of the displacement table 1;

the whole position of lens B is adjusted through displacement platform 1 afterwards, utilizes the goniometer to launch test beam afterwards, observes the direction angle that light beam deflected behind lens B on the target plate to accomplish the angle measurement operation under the clamping help of auxiliary fixtures.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims

1. The utility model provides an auxiliary fixtures with optical lens goniometer which characterized in that: the device comprises a displacement table and an auxiliary assembly, wherein a table plate is arranged at the top end of the displacement table, and the auxiliary assembly is arranged on the table plate;

the auxiliary assembly comprises a base plate and side arms, the base plate is arranged on the bedplate, and the side arms are symmetrically fixed at two side ends of the base plate;

the side arms are inclined, and the distance between the top ends of the two side arms is larger than that between the bottom ends of the two side arms;

the auxiliary assembly further comprises a sliding rail, a sliding block and a limiting part, the sliding rail is fixed on the side arm, the sliding block is nested on the sliding rail, and the limiting part is installed on the sliding block and used for abutting against a lens vertically placed on the base plate.

2. The auxiliary tool for an optical lens goniometer according to claim 1, wherein: the top surface of the substrate is provided with a groove with a circular arc-shaped bottom surface.

3. The auxiliary tool for an optical lens goniometer according to claim 1, characterized in that: the locating part includes locating plate, threaded rod and clamp plate, the one end of locating plate is installed on the slider, the locating plate other end is fixed with the nut of the directional lens direction of axis, the threaded rod passes through threaded engagement on the nut of locating plate, the clamp plate is fixed the one end that is close to the lens on the threaded rod.

4. The auxiliary tool for an optical lens goniometer according to claim 3, wherein: the top end of the pressing plate is parallel to the axis of the lens placed on the substrate.

5. The auxiliary tool for an optical lens goniometer according to claim 4, wherein: one side of the pressing plate close to the lens is provided with two limiting pins, the distance between the two limiting pins is larger than the thickness of the lens placed on the substrate, and the difference value between the two limiting pins is not larger than 1 mm.

6. The auxiliary tool for an optical lens goniometer according to claim 5, wherein: the adjacent long edges of the two limiting pins are perpendicular to the top end of the pressing plate.

7. The auxiliary tool for an optical lens goniometer according to claim 6, characterized in that: the limiting pin is fixed on the pressing plate through a bolt.

8. The auxiliary tool for an optical lens goniometer according to claim 3, wherein: the threaded rod is nested with the screwing sleeve at the end which is not provided with the fixed pressing plate.