CN217953840U

CN217953840U - Eccentricity measuring device of aspheric lens

Info

Publication number: CN217953840U
Application number: CN202221957271.2U
Authority: CN
Inventors: 孙建坤; 马骏; 杨明永
Original assignee: Kunming Kh Optics Technology Co ltd
Current assignee: Kunming Kh Optics Technology Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-12-02
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses an eccentric measuring device of aspheric lens, the on-line screen storage device comprises a base, the equal fixed mounting in front side and the rear side at base top has electric telescopic handle, electric telescopic handle's top fixed mounting has the light path framed panel, the backup pad has been welded to one side of light path framed panel, the top fixed mounting of backup pad has the autocollimator, the frame has all been welded to the top and the bottom of light path framed panel, the surface mounting of frame has the fixed subassembly of regulation, the surface mounting who adjusts the fixed subassembly has the drum, the inner wall swing joint of drum has the pipe, is provided with the ball between the inner wall of drum and the surface of pipe. The utility model provides an eccentric measuring device of current aspheric surface lens when carrying out eccentric measurement to the aspheric surface lens of different specifications, need prepare the fixed die plate of different specifications to fix aspheric surface lens to extravagant a large amount of time when changing the fixed die plate, the poor problem of practicality.

Description

Eccentricity measuring device of aspheric lens

Technical Field

The utility model relates to an aspheric lens off-centre measures technical field, specifically is an aspheric lens's off-centre measuring device.

Background

At present, when the domestic aspheric lens production manufacturer carries out eccentricity measurement on batch production's aspheric lens, mainly adopt the amesdial to carry out contact measurement, often can harm the surface of part, if add one deck protective layer between the probe of amesdial and aspheric surface contact surface, because paper has elasticity and just can not guarantee the measuring precision, the eccentric survey device's of aspheric lens theory of operation is: when the detected lens rotates around the mechanical rotating shaft, the two-dimensional coordinate change of the laser facula reflected by the aspheric surface on the CCD is recorded by the displacement measuring device, and the corresponding eccentricity is calculated according to the variable quantity and the aspheric surface shape.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an eccentric measuring device of aspheric lens possesses the fixed and adjustable advantage of aspheric lens centre gripping to different specifications of being convenient for, and the eccentric measuring device of having solved current aspheric lens is when carrying out eccentric measurement to the aspheric lens of different specifications, and the fixed die plate that needs to prepare different specifications is fixed aspheric lens to a large amount of time has been wasted when changing the fixed die plate, the poor problem of practicality.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an eccentric measuring device of aspheric lens, includes the base, the equal fixed mounting in front side and the rear side at base top has electric telescopic handle, electric telescopic handle's top fixed mounting has the light path framed board, the one side welding of light path framed board has the backup pad, the top fixed mounting of backup pad has the autocollimator, the frame has all been welded to the top and the bottom of light path framed board, the surface mounting of frame has the regulation fixed subassembly, the surface mounting who adjusts fixed subassembly has the drum, the inner wall swing joint of drum has the pipe, be provided with the ball between the inner wall of drum and the surface of pipe, drive assembly and centre gripping subassembly are installed respectively to the surface of pipe, the surface mounting of centre gripping subassembly is surveyed aspheric lens, the transmission optical assembly is installed on the right side at base top.

Preferably, adjust fixed subassembly and include the slider, the slider slip cap is established on the surface of frame, the welding of one side of slider has the fixed plate, the fixed plate is kept away from the one end of slider and the surface weld of drum, the slider is kept away from one side screw thread of fixed plate and is inlayed and be connected with fastening bolt.

Preferably, the drive assembly comprises a motor and a gear ring, the gear ring is fixedly sleeved on the surface of the rear end of the circular tube, a gear is fixedly connected to the rotating shaft of the motor, and the gear is meshed with the gear ring.

Preferably, the centre gripping subassembly includes lead screw one, the surface at the pipe is inlayed through the bearing activity to the one end of lead screw one, the surperficial thread bush of lead screw one is equipped with the movable plate, the both ends of movable plate all are rotated through the pivot and are connected with the connecting plate, the surface slip of pipe front end runs through and is provided with the slide bar, the one end welding that the slide bar is located the pipe inner chamber has splint, the one end of connecting plate is rotated through the pivot and is connected with the one end of slide bar, the right-hand member welding of lead screw one has carousel one.

Preferably, the transmission light subassembly includes the U template, the bottom of U template and the top welding of base, the fixed top of inlaying of U template is connected with fluorescent lamp transmitter, the equal sliding clamping in both sides of U template has the fixture block, the equal screw thread in both sides at U template top is inlayed and is connected with lead screw two, the top at the fixture block is inlayed through the bearing activity to the one end of lead screw two, the relative one side of fixture block is rotated through the damping pivot and is connected with the speculum, the other end welding of lead screw two has carousel two.

Preferably, one side of the clamping plate, which is far away from the sliding rod, is in contact with the surface of the aspheric lens to be tested, and the sliding rod is a square rod.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a base, electric telescopic handle, the light path framed panel, a supporting plate, the autocollimator, a machine support, adjust fixed subassembly, the drum, the pipe, the ball, drive assembly, the centre gripping subassembly, surveyed aspherical lens and transmission optical assembly cooperate, possess the fixed and adjustable advantage of aspherical lens centre gripping to different specifications of being convenient for, the eccentric measuring device of having solved current aspherical lens is when carrying out eccentric measurement to the aspherical lens of different specifications, the fixed die plate that need prepare different specifications fixes aspherical lens, and wasted a large amount of time when changing the fixed die plate, the poor problem of practicality.

Drawings

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

FIG. 2 is a partially cut-away perspective view of the present invention;

FIG. 3 is a perspective view of the clamping assembly of the present invention;

fig. 4 is a partially exploded perspective view of the light emitting module of the present invention.

In the figure: the device comprises a base 1, an electric telescopic rod 2, an optical path frame plate 3, a supporting plate 4, an autocollimator 5, a machine frame 6, an adjusting and fixing component 7, a sliding block 71, a fixing plate 72, a fastening bolt 73, a cylinder 8, a circular tube 9, a ball 10, a driving component 11, a motor 111, a gear ring 112, a gear 113, a clamping component 12, a screw rod 121I, a moving plate 122, a connecting plate 123, a sliding rod 124, a clamping plate 125, a rotating disc 126I, a tested aspheric lens 13, a light emitting component 14, a light emitting component 141U type plate 142, a light pipe emitter 143 clamping block, a screw rod 144 II, a reflecting mirror 145 and a rotating disc 146.

Detailed Description

Referring to fig. 1-4, an eccentricity measuring device for an aspheric lens includes a base 1, an electric telescopic rod 2 is fixedly installed on both the front side and the rear side of the top of the base 1, an optical path frame plate 3 is fixedly installed on the top of the electric telescopic rod 2, a support plate 4 is welded on one side of the optical path frame plate 3, an autocollimator 5 is fixedly installed on the top of the support plate 4, a rack 6 is welded on both the top and the bottom of the optical path frame plate 3, an adjusting and fixing component 7 is installed on the surface of the rack 6, a cylinder 8 is installed on the surface of the adjusting and fixing component 7, a circular tube 9 is movably connected to the inner wall of the cylinder 8, a ball 10 is disposed between the inner wall of the cylinder 8 and the surface of the circular tube 9, a driving component 11 and a clamping component 12 are respectively installed on the surface of the circular tube 9, a measured aspheric lens 13 is installed on the surface of the clamping component 12, and a light emitting component 14 is installed on the right side of the top of the base 1;

the adjusting and fixing component 7 comprises a sliding block 71, the sliding block 71 is sleeved on the surface of the rack 6 in a sliding manner, a fixing plate 72 is welded on one side of the sliding block 71, one end, far away from the sliding block 71, of the fixing plate 72 is welded on the surface of the cylinder 8, a fastening bolt 73 is connected to one side, far away from the fixing plate 72, of the sliding block 71 in a threaded manner in an embedded manner, and the sliding block 71, the fixing plate 72 and the fastening bolt 73 are arranged to realize position adjusting and fixing of the cylinder 8, the circular tube 9 and the clamping component 12, so that the position of the aspheric lens 13 to be measured is adjusted and fixed, and eccentricity measurement can be conveniently adjusted according to aspheric lenses of different specifications;

the driving component 11 comprises a motor 111 and a gear ring 112, the gear ring 112 is fixedly sleeved on the surface of the rear end of the circular tube 9, a rotating shaft of the motor 111 is fixedly connected with a gear 113, the gear 113 is meshed with the gear ring 112, one side of the motor 111 is fixedly connected with one side of the fixing plate 72 through a bolt, the rotating shaft of the motor 111 penetrates through the outer part of the fixing plate 72, the rotation of the circular tube 9 and the clamping component 12 is realized through arranging the motor 111, the gear ring 112 and the gear 113, so that the aspheric lens 13 to be detected is rotated, the autocollimator 5 records the two-dimensional coordinate change of the laser spot reflected by the aspheric lens 13 to be detected on the CCD, and the corresponding eccentricity is calculated according to the variation and the aspheric surface shape;

the clamping assembly 12 comprises a first screw rod 121, one end of the first screw rod 121 is movably embedded on the surface of the circular tube 9 through a bearing, a moving plate 122 is sleeved on the surface of the first screw rod 121 in a threaded manner, two ends of the moving plate 122 are rotatably connected with connecting plates 123 through rotating shafts, a sliding rod 124 penetrates through the surface of the front end of the circular tube 9 in a sliding manner, a clamping plate 125 is welded at one end, located in the inner cavity of the circular tube 9, of the sliding rod 124, one end of the connecting plate 123 is rotatably connected with one end of the sliding rod 124 through the rotating shafts, a first rotating disc 126 is welded at the right end of the first screw rod 121, and by arranging the first screw rod 121, the moving plate 122, the connecting plates 123, the sliding rod 124, the clamping plate 125 and the first rotating disc 126, aspheric lenses of different specifications can be clamped and fixed, so that fixed templates of different specifications are required to be prepared when eccentric measurement is performed on the aspheric lenses of different specifications, and a large amount of time is wasted when the fixed templates are replaced;

the light emitting component 14 comprises a U-shaped plate 141, the bottom of the U-shaped plate 141 is welded with the top of the base 1, a light pipe emitter 142 is fixedly embedded and connected to the top of the U-shaped plate 141, clamping blocks 143 are slidably clamped to two sides of the U-shaped plate 141, a second screw rod 144 is embedded and connected to two sides of the top of the U-shaped plate 141 in a threaded manner, one end of the second screw rod 144 is movably embedded in the top of the clamping block 143 through a bearing, a reflecting mirror 145 is rotatably connected to one side, opposite to the clamping block 143, of the clamping block 143 through a damping rotating shaft, a second rotating disc 146 is welded to the other end of the second screw rod 144, and the height and the angle of a light path can be adjusted through the arrangement of the U-shaped plate 141, the light pipe emitter 142, the clamping blocks 143, the second screw rod 144, the reflecting mirror 145 and the second rotating disc 146, so that the aspheric lens is more accurate in eccentricity measurement;

one side of the clamp plate 125 far away from the sliding rod 124 is in contact with the surface of the aspheric lens 13 to be tested, the sliding rod 124 is a square rod, and the clamp plate 125 is guided and limited by setting the sliding rod 124 to be the square rod and cannot rotate when moving.

When the device is used, a power supply and a computer are externally connected with a cable, the first rotary table 126 is rotated in the forward direction to enable the first lead screw 121 to rotate, and then the moving plate 122 is driven to move towards the right, the two sliding rods 124 and the clamping plates 125 are enabled to be far away from each other under the action of the connecting plate 123, the aspheric lens 13 to be measured is placed between the two clamping plates 125, then the first rotary table 126 is rotated in the reverse direction to enable the two clamping plates 125 to be close to each other, so that the aspheric lens 13 to be measured is clamped and fixed, the aspheric lenses of different specifications are conveniently clamped and fixed, the second lead screw 144 is rotated and moved by rotating the second rotary table 146, so that the clamping block 143 and the reflecting mirror 145 are moved, meanwhile, the reflecting mirror 145 is rotated, the height and angle of a light path are adjusted, so that the aspheric lens is more accurate in eccentric measurement, the light pipe emitter 142 emits light beams, the light beams are reflected by the reflecting mirror 145 to pass through the lens 13 to be measured, the autocollimator 5 receives and detects, the light from Jiao Dianxiang formed by the aspheric lens 13 to be measured, the aspheric lens 13 is controlled by the operation of the motor 111 to rotate, so that the two-dimensional laser spot of the aspheric lens to be measured and calculate the change of the aspheric surface profile of the aspheric lens 13.

In conclusion: this eccentric measuring device of aspheric lens, through base 1, electric telescopic handle 2, light path framed panel 3, backup pad 4, autocollimator 5, frame 6, adjust fixed subassembly 7, drum 8, pipe 9, ball 10, drive assembly 11, centre gripping subassembly 12, it cooperates to be surveyed aspheric lens 13 and transmission optical subassembly 14, the eccentric measuring device who has solved current aspheric lens is when carrying out eccentric measurement to the aspheric lens of different specifications, need prepare the fixed die plate of different specifications and fix aspheric lens, and wasted a large amount of time when changing fixed die plate, the poor problem of practicality.

Claims

1. An eccentricity measurement device of an aspherical lens, comprising a base (1), characterized in that: the utility model discloses a light path frame plate, including base (1), light path frame plate (3), backup pad (4), top fixed mounting of backup pad (4), frame (6) have all been welded to the top and the bottom of electric telescopic handle (2), the surface mounting of frame (6) has regulation fixed subassembly (7), the surface mounting who adjusts fixed subassembly (7) has drum (8), the inner wall swing joint of drum (8) has pipe (9), be provided with ball (10) between the inner wall of drum (8) and the surface of pipe (9), drive assembly (11) and centre gripping subassembly (12) are installed respectively to the surface of pipe (9), the surface mounting of centre gripping subassembly (12) is surveyed aspherical lens (13), emitting optical component (14) are installed on the right side at base (1) top.

2. An eccentricity measuring apparatus for an aspherical lens according to claim 1, wherein: adjust fixed subassembly (7) and include slider (71), slider (71) slip cover is established on the surface of frame (6), the welding of one side of slider (71) has fixed plate (72), the one end that slider (71) were kept away from in fixed plate (72) and the surface weld of drum (8), one side screw thread that fixed plate (72) were kept away from in slider (71) is inlayed and is connected with fastening bolt (73).

3. An eccentricity measuring apparatus for an aspherical lens according to claim 1, wherein: drive assembly (11) include motor (111) and ring gear (112), ring gear (112) fixed cover is established and is installed on the surface of pipe (9) rear end, the pivot fixedly connected with gear (113) of motor (111), gear (113) and ring gear (112) meshing.

4. An eccentricity measuring apparatus for an aspherical lens according to claim 1, wherein: centre gripping subassembly (12) include lead screw (121), the surface at pipe (9) is inlayed through the bearing activity to the one end of lead screw (121), the surperficial thread bush of lead screw (121) is equipped with movable plate (122), the both ends of movable plate (122) all are connected with connecting plate (123) through the pivot rotation, the surface slip of pipe (9) front end runs through and is provided with slide bar (124), the one end welding that slide bar (124) are located pipe (9) inner chamber has splint (125), the one end of connecting plate (123) is rotated through the pivot and is connected with the one end of slide bar (124), the right-hand member welding of lead screw (121) has carousel (126).

5. An eccentricity measuring apparatus for an aspherical lens according to claim 1, wherein: emitting optical subassembly (14) includes U template (141), the bottom of U template (141) and the top welding of base (1), the top fixed mosaic of U template (141) is connected with light pipe transmitter (142), the equal slip joint in both sides of U template (141) has fixture block (143), the equal screw thread in both sides at U template (141) top is inlayed and is connected with lead screw two (144), the top at fixture block (143) is inlayed through the bearing activity to the one end of lead screw two (144), one side that fixture block (143) is relative rotates through the damping pivot and is connected with speculum (145), the other end welding of lead screw two (144) has carousel two (146).

6. An eccentricity measuring apparatus for an aspherical lens according to claim 4, wherein: one side of the clamping plate (125) far away from the sliding rod (124) is in contact with the surface of the aspheric lens (13) to be tested, and the sliding rod (124) is a square rod.