CN218155960U

CN218155960U - Measuring tool for flatness of optical element

Info

Publication number: CN218155960U
Application number: CN202222625336.XU
Authority: CN
Inventors: 黄春丽; 黄镇流; 赵吉林; 蔡仲华; 周海彬
Original assignee: Foshan Liansen Optics Co ltd
Current assignee: Foshan Liansen Optics Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2022-12-27
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a measuring tool for flatness of an optical element, which belongs to the technical field of optical element detection, and comprises an installation platform, wherein a protruding block is fixed on one side edge of the installation platform in a protruding manner, a support column is vertically fixed on the protruding block, a rotating ring is arranged on the support column in a sleeved manner in a sliding manner, an extension bar is sleeved on the rotating ring in a rotating manner, a lantern ring is sleeved on the extension bar, and a measuring component is arranged on the lantern ring; the measuring assembly comprises a measuring sleeve, a second meshing wheel is arranged at the center of the measuring sleeve in a rotating mode, a first meshing wheel is arranged inside the measuring sleeve in a rotating mode below the second meshing wheel, a pointer is fixed to one end of the second meshing wheel, a meshing column is arranged on one side edge of the first meshing wheel in a protruding mode, a sliding rod is arranged on the measuring sleeve in a vertically sliding mode, and a meshing rod is fixed to the top of the sliding rod. The measuring tool for the flatness of the optical element can amplify the rotation angle of the pointer during measurement through the meshing transmission between the larger diameter ratios.

Description

Measuring tool for flatness of optical element

Technical Field

The utility model belongs to the technical field of optical element detects, especially, relate to a measuring tool of optical element plane degree.

Background

With the development of modern technologies such as aviation, aerospace and military, the application of large-aperture optical elements is more and more extensive, and the precision requirement is higher and higher. In the process of processing the optical element, the optical element needs to be detected for many times to ensure the processing precision.

The publication number 'CN 210570449U' discloses a measuring tool for flatness of an optical element, which comprises a base and a fixing plate, wherein the fixing plate is fixedly installed at the rear end above the base, an upper sliding rail is fixedly installed in the middle of the upper portion of the base, … … can measure flatness of the optical element quickly, the optical element can be measured in various sizes, and the measuring tool is wider in application range.

The measuring tool for the flatness of the optical element for searching is easy to cause the situations of error detection, insufficient detection and the like in the detection process because most errors of the flatness of the optical element are small in the detection process.

Therefore, a measuring tool for the flatness of the optical element is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving prior art, the measuring tool of the optical element plane degree of retrieval, in the testing process, because the most error of plane degree of optical element is less, the problem that the error detection is not in place etc. easily appears in the testing process, and the measuring tool of an optical element plane degree that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a measuring tool for flatness of an optical element comprises a mounting table, wherein a protruding block protrudes and is fixedly arranged on one side edge of the mounting table, a supporting column is vertically and fixedly arranged on the protruding block, a rotating ring is sleeved and arranged on the supporting column in a sliding mode, an extension rod is sleeved on the rotating ring in a rotating mode, a sleeve ring is sleeved on the extension rod, and a measuring assembly is arranged on the sleeve ring;

the measuring component is including measuring the cover, it is hollow discoid to measure the cover top, it is provided with second meshing wheel to measure the rotation of cover center department, it corresponds to measure the cover inside second meshing wheel below rotates and is provided with first meshing wheel, mesh between first meshing wheel and the second meshing wheel, the one end of second meshing wheel is fixed with the pointer, the salient is provided with the meshing post on one side of first meshing wheel, it is provided with the slide bar to measure to sheathe in the vertical slip, slide bar top department is fixed with the meshing pole, the meshing pole with mesh the transmission between the post, slide bar bottom department rotates to inlay and establishes and installs the ball.

The optical element measuring device has the advantages that the ball arranged at the bottom of the sliding rod can conveniently ensure that the top of the optical element cannot be scratched or rubbed to cause damage to the optical element in the working process, the first meshing wheel and the second meshing wheel with different diameter ratios, the meshing rod and the meshing column are matched in the measuring assembly, the rotating angle of the pointer can be enlarged in the working process during measurement, and therefore when the flatness unevenness difference value is small, the flatness of the optical element at the corresponding position can be well reflected, and the overall measuring effect of the device during measurement is improved.

As a further preferable scheme, a sliding cavity for the sliding rod to slide is formed in the position, corresponding to the top of the sliding rod, inside the measuring sleeve, a protruding plate is fixed at the top of the sliding rod, and the protruding plate is arranged in the sliding cavity in a sliding mode.

As a further preferable scheme, the outer edge of the measuring sleeve corresponding to the hollow disc is provided with a dial, and the zero scale of the dial is positioned vertically downwards.

Thanks to the dial and the zero scale that are set up down, can guarantee conveniently in the course of the work to the effectual location measurement of carrying out of the whole plane degree of optical element.

As a further preferable scheme, a positioning bolt is rotatably arranged on one side edge of the rotating ring, and one end of the positioning bolt is arranged at the outer edge of the supporting column in a propping manner.

Due to the matching between the rotating ring and the positioning bolt, the extension rod can be conveniently positioned at different positions according to different thicknesses of the optical elements, so that the subsequent measurement is facilitated.

As a further preferred scheme, the bottom of the mounting table is rotatably embedded with a rotating disc, a clamping cavity is formed in the rotating disc, and a clamping assembly is arranged in the clamping cavity.

As further preferred scheme, clamping component includes that the symmetry slides and sets up the slide bar in pressing from both sides tight intracavity, slide bar top department is outstanding to be provided with the tight piece of pressing from both sides of auxiliary component clamp, the inside rotation of rolling disc is provided with the transmission ring, transmission ring top department is outstanding to be provided with spiral helicine transmission tooth's socket, slide bar bottom department equidistance be provided with a plurality of with the driven transmission strip of transmission tooth's socket cooperation, it is provided with the rotation bolt to rotate on the rolling disc, the rotation bolt with cooperation transmission between the transmission ring.

Benefit from the clamping component who sets up, place optical element between pressing from both sides tight piece, rotate the rotation bolt, rotate and mesh between bolt and the driving ring, thereby make the driving ring rotate, mesh between the transmission tooth's socket on the driving ring and the drive strip on the slide bar, thereby make the slide bar remove, and then make the tight piece removal of clamp, thereby press from both sides tight processing to optical element through pressing from both sides tight piece, can carry out effectual location fastening to optical element according to optical element's size, guarantee that optical element can stably press from both sides tightly on pressing from both sides tight piece.

As a further preferred scheme, the outer edge of the sliding rod is symmetrically fixed with limiting strips, and limiting grooves for the limiting strips to slide are symmetrically formed in the clamping cavity.

The sliding rod can be conveniently and effectively positioned in the process of working due to the matching between the limiting strip and the limiting groove, and the conditions of dislocation and the like of the sliding rod in the clamping process are avoided.

To sum up, the utility model discloses a technological effect and advantage: this measuring tool of optical element plane degree, through the measuring subassembly that sets up, measuring sleeve in the measuring subassembly, first engaging wheel, the second engaging wheel, the slide bar, cooperation between ball and the engaging rod etc, through the first engaging wheel and the second engaging wheel that the diameter is great relatively, can be through the meshing transmission between the great diameter ratio in the course of the work, can enlarge the turned angle of pointer when measuring, and then when meetting the uneven difference value of plane degree less, the optical element plane degree of reaction corresponding position department that can be fine.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a longitudinal sectional view of the measuring assembly of the present invention;

fig. 3 is a longitudinal sectional view of the rotary disc corresponding to the clamping assembly of the present invention;

FIG. 4 is a schematic structural view of the slide rod and the clamping block of the present invention;

fig. 5 is a transverse sectional view of the corresponding transmission ring of the rotating disc of the present invention.

In the figure: 1. a mounting table; 2. a support pillar; 3. a rotating ring; 4. positioning the bolt; 5. an extension bar; 6. a collar; 7. a measurement assembly; 8. a measuring sleeve; 9. a first meshing wheel; 10. a second meshing wheel; 11. a slide bar; 12. a ball bearing; 13. a projecting plate; 14. an engagement lever; 15. rotating the disc; 151. a limiting groove; 16. a clamping assembly; 17. a slide bar; 171. a limiting strip; 172. a drive bar; 18. a clamping block; 19. a drive ring; 191. a drive tooth slot; 20. the bolt is turned.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, a measuring tool of optical element plane degree, including mount table 1, it is fixed with outstanding piece to stand out outstanding on one side of 1, the vertical fixation has support column 2 on the outstanding piece, the slip is provided with swivel ring 3 to the cover is established on support column 2, swivel ring 3 rotates the cover and is equipped with projecting rod 5, through rotatable setting between swivel ring 3 and the projecting rod 5, can conveniently carry out effectual measurement to optical element top different position when needing, optical element in this application can be optical lens etc. it is provided with positioning bolt 4 to rotate on one side of swivel ring 3, the outer fringe department at support column 2 is established on the one end top of positioning bolt 4, cooperation between swivel ring 3 and positioning bolt 4, can be according to optical element's different convenience of thickness is in different position departments with projecting rod 5, thereby make things convenient for follow-up measurement.

Referring to fig. 1 and 2, install measuring unit 7 on the lantern ring 6, measuring unit 7 includes measuring cover 8, measuring cover 8 top is hollow discoid, measuring cover 8 center department rotates and is provided with second meshing wheel 10, measuring cover 8 inside is provided with first meshing wheel 9 that corresponds second meshing wheel 10 below rotation, mesh between first meshing wheel 9 and the second meshing wheel 10, the one end of second meshing wheel 10 is fixed with the pointer, the salient is provided with the meshing post on one side of first meshing wheel 9, it is provided with slide bar 11 to slide perpendicularly on the measuring cover 8, slide bar 11 top department is fixed with meshing rod 14, meshing transmission between meshing rod 14 and the meshing post, slide bar 11 bottom department rotates to inlay and establishes and installs ball 12.

Through the ball 12 arranged at the bottom of the sliding rod 11, the damage to the optical element caused by scratch between the top of the optical element and the measuring component 7 can be conveniently ensured in the working process, the rotation angle of the pointer can be amplified in the working process through the matching between the first meshing wheel 9 and the second meshing wheel 10 with different diameter ratios arranged in the measuring component 7, the meshing rod 14 and the meshing column, and further when the uneven flatness value is small, the flatness of the optical element at the corresponding position can be well reflected, and the overall measuring effect of the device in the measuring process is improved.

A sliding cavity for sliding the sliding rod 11 is formed in the measuring sleeve 8 corresponding to the top of the sliding rod 11, a protruding plate 13 is fixed at the top of the sliding rod 11, and the protruding plate 13 is arranged in the sliding cavity in a sliding mode.

The outer edge of the measuring sleeve 8 corresponding to the hollow disc is provided with a dial, the zero scale of the dial is positioned vertically downwards, and the dial and the zero scale are arranged downwards, so that the whole flatness of the optical element can be conveniently and effectively positioned and measured in the working process.

Referring to fig. 1, fig. 3, fig. 4 and fig. 5, the bottom of the mounting table 1 is rotatably embedded with a rotating disc 15, a clamping cavity is formed in the rotating disc 15, a clamping component 16 is arranged in the clamping cavity, the clamping component 16 comprises a sliding rod 17 symmetrically sliding in the clamping cavity, a clamping block 18 clamped by an auxiliary element is arranged at the top of the sliding rod 17 in a protruding manner, a transmission ring 19 is arranged in the rotating disc 15 in a rotating manner, a spiral transmission tooth groove 191 is arranged at the top of the transmission ring 19 in a protruding manner, a plurality of transmission bars 172 in transmission fit with the transmission tooth groove 191 are arranged at the bottom of the sliding rod 17 in an equidistant manner, a rotating bolt 20 is arranged on the rotating disc 15 in a rotating manner, and the rotating bolt 20 and the transmission ring 19 are in transmission fit.

Through the clamping component 16 who sets up, place optical element between pressing from both sides tight piece 18, rotate rotation bolt 20, mesh between rotation bolt 20 and the driving ring 19, thereby make driving ring 19 rotate, mesh between the drive tooth's socket 191 on the driving ring 19 and the drive strip 172 on the slide bar 17, thereby make slide bar 17 remove, and then make and press from both sides tight piece 18 and remove, thereby press from both sides tight processing to optical element through pressing from both sides tight piece 18, can carry out effectual location fastening to optical element according to optical element's size, guarantee that optical element can stably press from both sides tightly on pressing from both sides tight piece 18.

The outer edge of the slide bar 17 is symmetrically fixed with a limit strip 171, and a limit groove 151 for the limit strip 171 to slide is symmetrically arranged in the clamping cavity.

Through the cooperation between the spacing groove 151 that sets up and the spacing strip 171, can conveniently carry out effectual location to slide bar 17 at this in-process of work, avoid the circumstances such as dislocation appear in the tight in-process slide bar 17 of clamp.

The working principle is as follows: when the optical element needs to be clamped, the optical element is placed between the clamping blocks 18, the rotating bolt 20 is twisted, the rotating bolt 20 is meshed with the transmission ring 19, so that the transmission ring 19 rotates, the transmission tooth grooves 191 in the transmission ring 19 are meshed with the transmission strips 172 in the sliding rods 17, so that the sliding rods 17 move, the clamping blocks 18 move, and the optical element is clamped through the clamping blocks 18.

When measuring, firstly, the positioning bolt 4 is adjusted to a corresponding position, the ball 12 on the measuring component 7 is attached to the optical element, the pointer scale on the measuring component 7 is arranged at a zero scale mark, the positioning bolt 4 is rotated, and then the positioning bolt 4 is jacked at the outer edge of the supporting column 2, so that the position of the rotating ring 3 is positioned, the lantern ring 6 is moved, the ball 12 is driven to roll when the measuring tool is moved, the sliding rod 11 is driven to move when the top of the rotating ring 3 protrudes, the sliding rod 11 drives the meshing rod 14 to move, the meshing rod 14 is meshed with the protruding column, so that the first meshing wheel 9 is rotated, the first meshing wheel 9 is meshed with the second meshing wheel 10, so that the second meshing wheel 10 is moved, and then the pointer is rotated, and the flatness of the optical element is measured.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The measuring tool for the flatness of the optical element comprises an installation table (1) and is characterized in that a protruding block is fixed on one side edge of the installation table (1) in a protruding mode, a supporting column (2) is vertically fixed on the protruding block, a rotating ring (3) is arranged on the supporting column (2) in a sleeved and sliding mode, an extension rod (5) is sleeved on the rotating ring (3) in a rotating mode, a sleeve ring (6) is sleeved on the extension rod (5), and a measuring assembly (7) is installed on the sleeve ring (6);

measuring subassembly (7) are hollow discoid including measuring cover (8), it is hollow discoid to measure cover (8) top, it is provided with second meshing wheel (10) to measure cover (8) center department rotation, it corresponds to measure cover (8) inside second meshing wheel (10) below is rotated and is provided with first meshing wheel (9), mesh between first meshing wheel (9) and second meshing wheel (10), the one end of second meshing wheel (10) is fixed with the pointer, the salient is provided with the meshing post on one side of first meshing wheel (9), it is provided with slide bar (11) to measure cover (8) and go up perpendicular slip, slide bar (11) top department is fixed with meshing rod (14), meshing rod (14) with mesh transmission between the post, slide bar (11) bottom department rotates to inlay and establishes and installs ball (12).

2. The optical element flatness measuring tool according to claim 1, wherein a slide cavity for sliding the slide rod (11) is opened inside the measuring sleeve (8) corresponding to the top of the slide rod (11), a protruding plate (13) is fixed on the top of the slide rod (11), and the protruding plate (13) is slidably disposed in the slide cavity.

3. The tool for measuring the flatness of an optical element according to claim 2, wherein the measuring sleeve (8) is provided with a dial scale at the outer edge corresponding to the hollow disc, and the zero scale of the dial scale is vertically downward.

4. The flatness measuring tool for the optical element according to claim 1, wherein a positioning bolt (4) is rotatably disposed on one side of the rotating ring (3), and one end of the positioning bolt (4) is supported on the outer edge of the supporting pillar (2).

5. The optical element flatness measuring tool according to claim 1, wherein a rotating disc (15) is rotatably embedded at the bottom of the mounting table (1), a clamping cavity is formed in the rotating disc (15), and a clamping assembly (16) is arranged in the clamping cavity.

6. The optical element flatness measuring tool according to claim 5, wherein the clamping assembly (16) includes a slide bar (17) symmetrically slidably disposed in the clamping cavity, a clamping block (18) clamped by the auxiliary element is protrudingly disposed at the top of the slide bar (17), a driving ring (19) is rotatably disposed inside the rotary disc (15), a spiral driving tooth groove (191) is protrudingly disposed at the top of the driving ring (19), a plurality of driving bars (172) are equidistantly disposed at the bottom of the slide bar (17) and are in transmission with the driving tooth groove (191), a rotating bolt (20) is rotatably disposed on the rotary disc (15), and the rotating bolt (20) and the driving ring (19) are in transmission in a matching manner.

7. The optical element flatness measuring tool according to claim 6, wherein the outer edge of the sliding rod (17) is symmetrically fixed with a limiting strip (171), and the clamping cavity is symmetrically provided with a limiting groove (151) for the limiting strip (171) to slide.