CN109269768B - Connecting device - Google Patents
Connecting device Download PDFInfo
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- CN109269768B CN109269768B CN201811188215.5A CN201811188215A CN109269768B CN 109269768 B CN109269768 B CN 109269768B CN 201811188215 A CN201811188215 A CN 201811188215A CN 109269768 B CN109269768 B CN 109269768B
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- worm
- rotating block
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- General Physics & Mathematics (AREA)
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Abstract
The present invention provides a connecting device, comprising: the worm part, the turbine transmission part, the sliding block, the mounting bracket and the accommodating part; the worm part is meshed with the turbine transmission part, is fixed on the accommodating part and is used for driving the turbine transmission part to rotate; the turbine transmission part is positioned in the accommodating part, is rotationally connected with the sliding block and rotates according to the rotation of the worm part; the sliding block is positioned in the accommodating part, performs relative reciprocating motion according to the rotation of the turbine transmission part, further drives the tested object on the sliding block to perform relative reciprocating motion, and the accommodating part is used for accommodating the turbine transmission part and the sliding block and is fixedly connected with the mounting bracket and the worm part; and the mounting bracket is mounted on a test instrument during testing. The connecting device can assist in completing diopter and astigmatism tests of optical lenses such as progressive multiple focuses, adjustable focal lengths and the like.
Description
Technical Field
The invention belongs to the field of testing, is applicable to testing of optical lenses, and relates to a connecting device between a lens and an optical tester when diopter and astigmatism are tested.
Background
Optical lenses are highly customized, and for example, for optical correction lenses such as progressive multifocal lenses, variable focal length lenses for visual training, near-eye display devices that are adapted to individual users by using concepts such as Virtual Reality (VR) and Augmented Reality (AR) and require diopter and astigmatism adjustment according to the user's eyesight, etc., since they are directly applied to the human eyes, each point in the applicable range is required to have high accuracy, and the diopter and astigmatism of the lenses are measured before shipment to ensure design accuracy. However, since the structures of the above-mentioned lenses are usually complex surface types and do not have uniform shapes, the present market tester cannot directly measure the diopter and astigmatism of the lenses. How to measure diopter and astigmatism of a near-eye display device is a problem to be solved urgently at present.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a connecting device, which is mounted on a corresponding optical or testing instrument, so that the lens, which is an object to be tested and is fixed on the connecting device, can relatively reciprocate, and the diopter and the astigmatism of the lens can be tested by the optical testing instrument.
A connecting device of the present invention includes: the worm part, the worm gear transmission part, the sliding block, the mounting bracket and the accommodating part; the worm part is meshed with the worm gear transmission part, is fixed on the accommodating part and is used for driving the worm gear transmission part to rotate; the worm gear transmission part is positioned in the accommodating part, is rotationally connected with the sliding block and rotates according to the rotation of the worm part; the worm gear transmission part comprises a gear and a rotating block, the gear and the rotating block are coaxial but not coaxial, the gear is meshed with the thread of the worm rod part and is connected with the rotating block, the diameter of the rotating block is matched with the size of a U-shaped groove of the sliding block, the rotating block comprises a first rotating block and a second rotating block, and the first rotating block and the second rotating block are glued and integrally formed; the slide block is positioned in the accommodating part, the upper part of the slide block is a U-shaped groove which is clamped with the rotating block part of the worm gear transmission part, the lower part of the slide block is a cross bar which is used for fixing a lens as a measured object, and the width of the U-shaped groove is smaller than that of the cross bar; the slide block performs relative reciprocating motion according to the rotation of the worm gear transmission part, and further drives a measured object on the slide block to perform relative reciprocating motion; the accommodating part is used for accommodating the worm gear transmission part and the sliding block and is fixedly connected with the mounting bracket and the worm part; and the mounting bracket is mounted on a test instrument during testing.
Further, the worm part comprises a worm, a thread transmission and a thread transmission accommodating part; wherein the worm is positioned outside the threaded transmission accommodating part; the middle of the worm gear transmission part is provided with threads and is meshed with the worm gear transmission part, and the two ends of the worm gear transmission part are provided with circular ring-shaped bulges which are clamped with the port of the thread transmission accommodating part; the screw thread transmission holding part, the port is circular opening.
Further, the slide block comprises a first slide block and a second slide block; the opposite parts of the transverse rods of the first sliding block and the second sliding block form sawtooth-shaped binding surfaces.
Furthermore, the mounting bracket comprises an upper surface and two supporting parts which are connected with the accommodating part and extend downwards from two ends of the upper surface, and the connecting part extends out of the accommodating part.
Further, the accommodating part comprises a shell and a sliding rail; the shell is used for fixedly mounting the bracket and the worm part, and bayonets matched with the slide rails are arranged at the lower parts of the front surface and the rear surface of the shell; the sliding rail comprises a first sliding rail and a second sliding rail, and is clamped with the shell through the bayonet; the slide rail is attached to the slide block and is matched with the outer side shape of the slide block.
Further, the connecting device further comprises: a limiting rod; the limiting rods are two independent parts which are arranged on the same horizontal line, correspond to the middle of the first sliding block and the second sliding block, and are attached to the cross rods of the sliding blocks.
Furthermore, the distance between the limiting rods is 28-36 mm.
Further, the worm gear transmission further comprises a third rotating block; the third rotating block is positioned between the first rotating block and the second rotating block, the axis of the third rotating block is on the rotating shaft, and the diameter of the third rotating block does not exceed the distance from the rotating shaft to the cross rod.
Further, the distance between the axes of the first rotating block and the second rotating block in the vertical direction is 8.20 mm-8.25 mm.
By adopting the connecting device, an object to be measured such as a lens is fixed on the sliding block through the pressing sheet, the sliding block is driven to do relative reciprocating motion through the worm rod part and the worm gear transmission part, so that the relative reciprocating motion of the lens is realized, and the connecting device is fixed on a tester, so that the diopter and the astigmatism of the lens at different relative positions can be tested, and the diopter and the astigmatism of the lens can be determined according to different requirements.
Drawings
FIG. 1 is a schematic view of a coupling device without a receptacle;
FIG. 2 is a schematic view of a connection device including a receptacle;
FIG. 3 is a bottom view of the coupling device;
FIG. 4 is a schematic view of the worm part;
FIG. 5A is a schematic structural view of a worm gear and a slider;
FIG. 5B is a schematic structural view of the first/second sliders;
FIG. 6 is a schematic view of the mounting bracket;
FIG. 7 is a schematic diagram of a receptacle.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and the accompanying drawings.
A connection device, as shown in fig. 1, 2 and 3, comprising: a worm part 101, a worm gear 102, a slider 103, a mounting bracket 104, and a housing part 105; fig. 1 is a schematic diagram of a connection device without the accommodating portion 105, fig. 2 is a schematic diagram of a connection device with the accommodating portion 105, and fig. 3 is a bottom view of the connection device, wherein the connection device is exemplified by the accommodating portion 105.
A worm part 101, as shown in fig. 1-4, engaged with the worm gear part 102, fixed on the accommodating part 105, for driving the worm gear part 102 to rotate; the worm 1011 is located outside the screw drive receiving part 1013, and the screw drive 1012 is engaged with the screw drive receiving part 1013 and located inside the screw drive receiving part 1031. Specifically, the middle part of the screw drive 1012 is a screw thread, and the two ends of the screw drive 1012 are circular protrusions, the circular protrusions are clamped with the circular opening ends at the two ends of the screw drive accommodating part 1013, and the screw drive accommodating part 1013 is fixedly installed on the accommodating part 105;
a worm gear transmission part 102 located in the accommodating part 105, connected to the worm part 101 and the slider 103, and rotatably connected to the slider 103; the slider 103 is further driven to reciprocate relatively by the rotational rotation of the worm part 101. As shown in particular in fig. 5, comprises a gear 1021 and a cylindrical rotation block, wherein the rotation block comprises a first rotation block 1022 and a second rotation block 1023. The diameter of the rotating block is matched with the inner groove of the sliding block 103, the gear 1021 is meshed with the thread of the worm part 101, the gear 1021 is coaxial and non-coaxial with the first rotating block 1022 and the second rotating block 1023, namely, the gear 1021 is connected with the first rotating block 1022 and the second rotating block 1023 through a common rotating shaft, the rotating shaft is deviated from the axes of the first rotating block 1022 and the second rotating block 1023 through the axis of the gear, and the distance between the axes of the first rotating block 1022 and the second rotating block 1023 in the y direction is 8.20 mm-8.25 mm, preferably 8.25 mm; the gear 1021, the first rotating block 1022 and the second rotating block 1023 may be glued or integrally formed. The worm part 101 rotates to drive the screw thread, and further drives the worm gear transmission part 102;
the sliding block 103 is connected to the worm gear 102, is located in the accommodating portion 105, and performs relative movement according to rotation of the worm gear 102, so that a measured object fixed on the sliding block relatively reciprocates, and the measured object may be a lens. Specifically, as shown in fig. 5A and 5B, the first slider 1031 and the second slider 1032 are divided, the upper portion of the first slider 1031 is a U-shaped groove and is engaged with the rotating block portion of the worm gear transmission portion 102, the lower portion of the first slider 1031 is a cross bar for fixing the object to be measured, and the opposite portions of the cross bar of the first slider 1031 and the second slider 1032 form a serrated attachment surface; the worm gear 102 rotates to drive the first slide 1031 and the second slide 1032 to move relatively, so as to drive the object to be measured fixed thereon to move relatively. The fixing fixes the measured object on the cross bar through the pressing sheet, and the pressing sheet can fix the measured object on the cross bar through screws or other mechanical modes;
and a mounting bracket 104 connected to the accommodating portion 105 and mountable on the test apparatus during a test. Specifically, as shown in fig. 6, the mounting bracket 104 includes an upper surface and two supporting portions extending downward from two ends of the upper surface, wherein the supporting portion connected to the accommodating portion 105 extends to a direction of the accommodating portion 105 to form a connecting portion, and the connecting portion may be mechanically connected to the accommodating portion 105 by a screw or a nut, so as to fix the mounting bracket 104 to the accommodating portion 105.
A housing portion 105 for housing the worm gear transmission portion 102 and the slider 103; specifically, as shown in fig. 7, the device includes an outer shell 1051 and a slide rail 1052, which are opened up and down; the round hole on the outer shell 1051 can be connected with the rotating shaft of the worm gear transmission part 102; the connecting part is connected with the mounting bracket 104 and is used for fixing the mounting bracket; the screw transmission housing part 1013 of the worm part 101 is connected with the worm part 101 for fixing the worm part 101, and the connection can be gluing, integral molding or mechanical connection; the slide rail 1052 is located outside the cross bar of the slider 103, so that the slider is mounted in the receiving portion.
Further, the slide rail 1052 includes a first slide rail and a second slide rail, the first slide rail and the second slide rail are located at the lower portion of the housing 1051, and are engaged with the housing 1051 through lower bayonets on the front and rear surfaces of the housing 1051, and can be glued with the housing 1051 through the bayonets, or can be integrally formed with the housing 1051, and the first slide rail and the second slide rail are adapted to a concave groove or a convex groove on the outer side of the cross bar of the slider 103, so that the slider 103 is stably placed in the accommodating portion 105;
correspondingly, the outer sides of the slider 103, the first slider 1031 and the second slider 1032 are provided with concave or convex grooves adapted to the first and second slide rails.
As shown in fig. 1 to 4, the connecting device further includes a stopper rod 106;
the limiting rod 106 is divided into two independent parts, which are respectively fixed on the front and rear surfaces of the housing 105 and face the interior of the housing 105, and the two independent parts are in the same horizontal line, correspond to the middle of the first slider 1031 and the second slider 1032 and are attached to the cross bar of the slider 103, so as to prevent the first slider 1031 and the second slider 1032 from upwarping when sliding relatively; the distance between the limiting rods 106 is preferably 28mm-36 mm;
correspondingly, the width of the U-shaped groove of the sliding block 103 is smaller than that of the cross bar;
the worm gear 102 further includes a third rotating block 1024 located between the first rotating block 1022 and the second rotating block 1023, and the axis of the third rotating block 1024 is on the rotating shaft, and the diameter of the third rotating block 1024 does not exceed the distance from the cross bar to the rotating shaft of the worm gear 102, thereby facilitating the fixed connection between the mounting bracket and the accommodating part.
The connecting device is installed on a tester, the worm part 101 is manually rotated to drive the thread on the worm part 101, the thread drives the gear 1021 engaged with the thread, so as to drive the worm gear transmission part 102 to rotate, the worm gear transmission part 102 drives the sliding block 103 to move relatively through the rotating block, so that the lens fixed on the sliding block 103 and used as the tested object moves relatively, the diopter and the astigmatism of the lens at different relative positions are different, and the diopter and the astigmatism of the lens are measured through the tester.
Although the connecting device of the present invention is shown as measuring an optical lens, it will be understood by those skilled in the art that the connecting device of the present invention can also be applied to other situations when the continuous variation adjustment of the object under test is required, and therefore, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Claims (9)
1. A connecting device for connecting a lens to be tested and a test instrument, comprising: the worm part, the worm gear transmission part, the sliding block, the mounting bracket and the accommodating part; the method is characterized in that:
the worm part is meshed with the worm gear transmission part, is fixed on the accommodating part and is used for driving the worm gear transmission part to rotate;
the worm gear transmission part is positioned in the accommodating part, is rotationally connected with the sliding block and rotates according to the rotation of the worm part; the worm gear transmission part comprises a gear and a rotating block, the gear and the rotating block are coaxial but not coaxial, the gear is meshed with the thread of the worm rod part and is connected with the rotating block, the diameter of the rotating block is matched with the size of a U-shaped groove of the sliding block, the rotating block comprises a first rotating block and a second rotating block, and the first rotating block and the second rotating block are glued or integrally formed;
the slide block is positioned in the accommodating part, the upper part of the slide block is a U-shaped groove which is clamped with the rotating block part of the worm gear transmission part, the lower part of the slide block is a cross bar which is used for fixing a lens as a measured object, and the width of the U-shaped groove is smaller than that of the cross bar; the slide block performs relative reciprocating motion according to the rotation of the worm gear transmission part, and further drives a measured object on the slide block to perform relative reciprocating motion;
the accommodating part is used for accommodating the worm gear transmission part and the sliding block and is fixedly connected with the mounting bracket and the worm part;
and the mounting bracket is mounted on a test instrument during testing.
2. The connection device of claim 1,
the worm part comprises a worm, a thread transmission and a thread transmission accommodating part; wherein the worm is positioned outside the threaded transmission accommodating part;
the middle of the worm gear transmission part is provided with threads and is meshed with the worm gear transmission part, and the two ends of the worm gear transmission part are provided with circular ring-shaped bulges which are clamped with the port of the thread transmission accommodating part;
the screw thread transmission holding part, the port is circular opening.
3. The connector of claim 2, wherein the slider comprises a first slider and a second slider, and opposing portions of the cross bar of the first slider and the second slider form a serrated abutment surface.
4. The connection device of claim 3,
the mounting bracket comprises an upper surface and two supporting parts extending downwards from two ends of the upper surface, and the supporting parts connected with the accommodating parts extend out of the connecting parts towards the direction of the accommodating parts.
5. The connection device of claim 4,
the accommodating part comprises a shell and a sliding rail;
the shell is used for fixedly mounting the bracket and the worm part, and bayonets matched with the slide rails are arranged at the lower parts of the front surface and the rear surface of the shell;
the sliding rail comprises a first sliding rail and a second sliding rail, and is clamped with the shell through the bayonet; the slide rail is attached to the slide block and is matched with the outer side shape of the slide block.
6. The connecting device according to any one of claims 1 to 5, characterized in that the connecting device further comprises: a limiting rod;
the limiting rods are two independent parts which are arranged on the same horizontal line, correspond to the middle of the first sliding block and the second sliding block, and are attached to the cross rods of the sliding blocks.
7. The connecting device according to claim 6, wherein the distance between the stop levers is 28mm to 36 mm.
8. The device of claim 2, wherein the worm gear drive further comprises a third rotating block;
the third rotating block is positioned between the first rotating block and the second rotating block, the axis of the third rotating block is on the rotating shaft, and the diameter of the third rotating block does not exceed the distance from the rotating shaft to the cross rod.
9. The apparatus according to claim 1 or 8, wherein the distance between the axes of the first and second rotating blocks in the vertical direction is 8.20mm to 8.25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811188215.5A CN109269768B (en) | 2018-10-11 | 2018-10-11 | Connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811188215.5A CN109269768B (en) | 2018-10-11 | 2018-10-11 | Connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109269768A CN109269768A (en) | 2019-01-25 |
| CN109269768B true CN109269768B (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811188215.5A Active CN109269768B (en) | 2018-10-11 | 2018-10-11 | Connecting device |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217273A (en) * | 2013-03-25 | 2013-07-24 | 上海理工大学 | Multifocal lens diopter detection system and detection method thereof |
| CN203305043U (en) * | 2013-06-09 | 2013-11-27 | 无锡立达纺织机械器材有限公司 | Flat clothing honing device |
| CN204016251U (en) * | 2014-05-19 | 2014-12-17 | 青岛市市立医院 | A kind of diopter Simple testing table |
| CN205286875U (en) * | 2015-12-31 | 2016-06-08 | 江苏鹰视菲诺智能科技有限公司 | Electron zoom glass's drive control system |
| CN205912540U (en) * | 2016-08-28 | 2017-02-01 | 郭政 | Tree pruner |
| CN206777498U (en) * | 2016-12-14 | 2017-12-22 | 江苏鹰视菲诺智能科技有限公司 | Eyesight treatment mirror with adjustable focal length lens group |
| CN108204889A (en) * | 2017-12-27 | 2018-06-26 | 大连鉴影光学科技有限公司 | A kind of novel glasses optical parameter global detection method and device |
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| CN109269768A (en) | 2019-01-25 |
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