CN210038319U

CN210038319U - Reading microscope

Info

Publication number: CN210038319U
Application number: CN201920957893.7U
Authority: CN
Inventors: 刘江涛
Original assignee: Shaanxi Hongqi Testing Technology Co Ltd
Current assignee: Shaanxi Hongqi Testing Technology Co Ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-02-07
Anticipated expiration: 2029-06-24

Abstract

The utility model relates to a reading microscope, it includes that cavity setting and roof opening set up base, setting keep away from the objective table of ground one side and slide the lens cone of setting on the base at the base, and the lens cone is kept away from objective table one side and is provided with the eyepiece, is close objective table one side and is provided with objective, is provided with a plurality of first counter bores on the base, is provided with levelling device between objective table and the base, and levelling device is located first counter bore, the utility model discloses a levelling device has guaranteed reading microscope measuring accuracy to the leveling of objective table.

Description

Reading microscope

Technical Field

The utility model belongs to the technical field of the technique of the accurate mechanical instrument of optics and specifically relates to a reading microscope is related to.

Background

The reading microscope can be widely applied to all levels of metering units, research institutes, university laboratories, metering rooms of large factories and workshop processing sites, can measure the motion linear axis and the straightness of a machine tool and a precision guide rail and a precision flat plate of an instrument, measures the angular value precision of an angle instrument and an instrument, adopts an optical auto-collimation principle and a two-dimensional measurement structure, can simultaneously measure the motion linearity and the straightness of the machine tool, the precision guide rail of the instrument and the precision flat plate and the angle and the linear value precision in the horizontal direction, the vertical direction and the two-dimensional direction, has the working efficiency superior to that of the prior one-way similar instrument, and has the advantages of compact structure, high precision, small volume and light weight.

Chinese patent No. CN204556945U discloses a reading microscope, which comprises a base, a vertical rod vertically connected with the base, a microscope movably fixed on the vertical rod, and an illumination ring, wherein a loading platform is movably arranged on the top wall of the base, a light source is arranged in the base, and the illumination ring is sleeved on an objective lens of the microscope; the illumination ring is opened, the observation object is irradiated from top to bottom, and observation can be carried out from the direction of reflected light; because the objective table can be followed the base surface back-and-forth movement, avoided the inconvenience that brings with the direct movement observation thing of hand, through removing the objective table and set up on the base like this, avoided the inconvenience of adjusting light source and observed object position etc. in the experiment through removing the objective table, both can follow the reverberation direction through light source and illumination ring, can follow the transmitted light direction again and observe, be favorable to diversified observation and the experimental measurement of optics phenomenon, be favorable to improving the experiment effect.

The above prior art solutions have the following drawbacks: when using, the objective table removes the levelness of setting up back objective table at the horizontal plane and is difficult to guarantee, and the reading microscope is precision instruments, and measurement accuracy reaches 0.001mm, and the objective table takes place any slight slope and all will have very big influence to measured data.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a leveling through the objective table guarantees measurement accuracy's reading microscope.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a reading microscope, includes the base that cavity and roof opening set up, sets up and keeps away from the objective table and the lens cone of vertical slip setting on the base of ground one side at the base, the lens cone is kept away from objective table one side and is provided with the eyepiece, is close objective table one side and is provided with objective, be provided with a plurality of first counter bores on the base, the objective table with be provided with leveling device between the base, leveling device is located in the first counter bore.

Through adopting above-mentioned technical scheme, reading microscope carries out the leveling through the extension or the shortening of adjusting levelling device with the relative base of objective table before using, then places the determinand on the objective table, the axial of following the lens cone is by the distance of nearly to far-range adjustment lens cone apart from the objective table, until the observation determinand that can know through the eyepiece, reading microscope carries out length measurement again, guaranteed the level of objective table for the base like this, and then guaranteed the level of the determinand of placing on the objective table, guaranteed measurement accuracy.

The utility model discloses further set up to: the leveling device comprises a threaded rod and a leveling nut, one end of the threaded rod is fixedly connected with the bottom of the objective table, the threaded rod is coaxially arranged in the first counter bore and is located in the first counter bore, the outer wall of the base is provided with a notch communicated with the first counter bore, and the leveling nut is located in the notch and is in threaded connection with the threaded rod.

Through adopting above-mentioned technical scheme, when the objective table was transferred, through the rotatory leveling nut that is located the breach of breach, the leveling nut drives the screw rod through the screw thread and reciprocates along the axial of first counter bore, and the threaded rod that reciprocates will drive the objective table and use the one side of keeping away from the threaded rod to produce the inclination as the rotation point, and the leveling that can realize the objective table is operated according to above-mentioned scheme simultaneously to a plurality of levelling device.

The utility model discloses further set up to: the thread of the threaded rod is a single-thread fine-thread, and the thread of the leveling nut corresponding to the thread of the threaded rod is a single-thread fine-thread.

By adopting the technical scheme, the thread with single line and fine teeth ensures that the stroke between the threaded rod and the leveling nut is very small, so that the moving distance of the threaded rod is very small after the leveling nut rotates for one circle, and the leveling is more precise.

The utility model discloses further set up to: and a level gauge is arranged on the objective table.

By adopting the technical scheme, when the leveling device is used for leveling, and the air bubbles of the level meter incline towards the side, the leveling device in the direction can be heightened or lowered, and finally the air bubbles of the level meter are adjusted into the datum line of the level meter by adjusting the leveling devices, so that the direction needing to be adjusted and whether the leveling is successful can be determined through the level meter, and the leveling device is convenient to use.

The utility model discloses further set up to: the base opening sets up one end and is provided with the second counter bore, the objective table is located in the second counter bore, the second counter bore is greater than the objective table, first counter bore is located on the second counter bore.

Through adopting above-mentioned technical scheme, with the objective table restriction in the second counter bore, at the objective table leveling in-process, after the objective table was adjusted the parallel state by the tilt state, its length and width all will increase in the horizontal plane, the second counter bore is greater than the objective table and has guaranteed that the objective table can not butt the perisporium of second counter bore, leaves removal space for the leveling of objective table like this.

The utility model discloses further set up to: the base internal rotation is provided with the picture frame, picture frame one side is provided with the level crossing, the opposite side of picture frame is provided with the concave mirror.

Through adopting above-mentioned technical scheme, the reflection of light performance of level crossing is less than the reflection of light performance of concave mirror, when measuring light is good, uses the level crossing to measure, when measuring light is poor, uses the concave mirror to measure, when using level crossing or concave mirror to measure, contained angle between level crossing or concave mirror and the objective table is adjusted to all rotatable picture frames, makes reflection to the interior light of lens cone be fit for the measurement demand, has improved the device's suitability like this.

The utility model discloses further set up to: the slide block is arranged on the outer peripheral wall of the ocular corresponding to the slide groove, and after the slide block is matched with the slide groove, any one side of the cross line of the ocular is positioned on the same straight line on the scale mark of the scale.

Through adopting above-mentioned technical scheme, make the eyepiece be in same straight line with the scale mark of scale in pegging graft eyepiece barrel any limit of back cross line in through the cooperation of slider and spout, and slider and spout have carried out circumference spacing messenger's it can not rotate in eyepiece barrel after fixed, have guaranteed that cross line and scale mark are adjusted well the lines parallel with the scale mark in measurement process to the eyepiece, need not to carry out adjusting well of cross line like this, facilitate the use.

The utility model discloses further set up to: and a protection ring is fixedly arranged at one end of the objective lens close to the objective table, and the inner diameter of the protection ring is not less than that of the objective lens.

Through adopting above-mentioned technical scheme, when reading microscope uses, need make the lens cone follow its axial displacement and focus, need operating personnel to observe the eyepiece this moment, probably make objective butt to the objective table cause the damage to the eyepiece when focusing, reduce the damage that objective and objective table received through the protection ring when objective butt objective table, the internal diameter of protection ring is less than the internal diameter of objective and has guaranteed that the protection ring can not shelter from the objective and cause the influence to the measurement, has improved the device's reliability.

The utility model discloses further set up to: the peripheral wall of the base is provided with a light transmitting opening.

Through adopting above-mentioned technical scheme, increased and got into and led the inside light of base, and then increased level crossing or concave mirror and launched light, increased the light that enters into in the lens cone, level crossing and concave mirror can set up littleer like this, reduce the device's volume.

To sum up, the utility model discloses a beneficial technological effect does:

1. the leveling device ensures the level of the object stage relative to the base, further ensures the level of an object to be measured placed on the object stage, and ensures the measurement precision;

2. the threaded rod and the leveling nut adopt single-thread fine threads, so that the leveling is more precise;

3. the rotatable picture frame selects plane mirror or concave mirror, makes the reflection to the interior light of lens cone be fit for the measurement demand, has improved the suitability of the device like this.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an exploded view of a part of the structure of the present invention, which is intended to show the leveling device and the mirror frame.

Fig. 3 is an explosion diagram of the lens barrel of the present invention, which is intended to show the slider and the chute.

In the figure, 1, a base; 11. a first counterbore; 12. a leveling device; 121. a threaded rod; 122. a leveling nut; 13. a notch; 14. a mirror frame; 15. a light-transmitting opening; 16. a second counterbore; 2. an object stage; 21. a level gauge; 3. a lens barrel; 31. an eyepiece; 311. a slider; 32. an objective lens; 321. a guard ring; 33. a chute.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a reading microscope, including the base 1 that inside cavity and roof opening set up, set up at base 1 and keep away from objective table 2 of ground one side and slide the lens cone 3 that sets up on base 1 in vertical plane.

Referring to fig. 1 and 2, one end of the base 1, which is provided with an opening, is provided with a second counterbore 16, a plurality of first counterbores 11 are arranged on the bottom wall of the second counterbore 16, the object stage 2 is located in the second counterbore 16, the length and the width of the second counterbore 16 are both greater than those of the object stage 2, one side, which is far away from the base 1, of the object stage 2 is provided with a level meter 21, a leveling device 12 is arranged between the object stage 2 and the base 1, and the leveling device 12 is located in the first counterbore 11.

Referring to fig. 1 and 2, the leveling device 12 includes a threaded rod 121 and a leveling nut 122, threads of the threaded rod 121 and the leveling nut 122 are both set as single fine-thread threads, one end of the threaded rod 121 is fixedly connected to one side of the object stage 2 close to the base 1, the threaded rod 121 is located in the first counterbore 11, the leveling nut 122 is in threaded connection with the threaded rod 121, a notch 13 which is communicated with the first counterbore 11 and penetrates through a peripheral wall of the base 1 is arranged on the peripheral wall of the base 1, and the leveling nut 122 is located in the first counterbore 11 and the notch 13 at the same time, in this embodiment, the peripheral wall of the leveling nut 122 extends out of the base.

Referring to fig. 2, a mirror frame 14 is rotatably disposed in a base 1, a plane mirror is disposed on one side of the mirror frame 14, a concave mirror is disposed on one side of the mirror frame 14, a light-transmitting opening 15 is disposed on a circumferential wall of the base 1, which is away from one side of a lens barrel 3, the mirror frame 14 is provided with a rotating shaft on outer sides of two adjacent side walls of the light-transmitting opening 15, the rotating shaft is rotatably disposed on inner sides of two adjacent side walls of the base 1, which are away from the base 1, of the mirror frame 14, and any rotating shaft penetrates through the side wall of the base 1 and is provided with a.

Referring to fig. 1 and 3, an eyepiece 31 is disposed on a side of the lens barrel 3 away from the object stage 2, a sliding groove 33 is disposed on an inner peripheral wall of one end of the lens barrel 3 away from the object stage 2, a sliding block 311 is disposed on an outer peripheral wall of the eyepiece 31 corresponding to the sliding groove 33, the sliding block 311 is located in the sliding groove 33, and the sliding block 311 and the sliding groove 33 enable any one side of a cross line of the eyepiece 31 to be located on the same straight line as a scale line of the scale.

Referring to fig. 3, the objective lens 32 is disposed on the side of the lens barrel 3 close to the stage 2, a protection ring 321 is fixedly disposed on one end of the objective lens 32 close to the stage 2, and the inner diameter of the protection ring 321 is not smaller than that of the objective lens 32.

The implementation principle of the embodiment is as follows: the reading microscope uses the forward moving lens cone 3 to enable the objective lens 32 to lightly abut against one side of the objective table 2 far away from the base 1, in the process, the protection ring 321 can reduce the damage to the objective lens 32 and the objective table 2 when the operation is wrong, and the inner diameter of the protection ring 321 is smaller than that of the objective lens 32, so that the protection ring 321 can not shield the objective lens 32 to influence the measurement; then adjusting the lens frame 14, selecting a plane mirror when the brightness of the measurement environment is high, selecting a concave mirror when the brightness of the measurement environment is low, and adjusting the lens frame 14 to enable the light reflected by the plane mirror or the concave mirror to illuminate the inside of the lens barrel 3, wherein in the process, the light transmitting opening 15 can increase the light irradiated on the plane mirror or the concave mirror in the measurement environment; then the slide block 311 is aligned with the slide groove 33 and is arranged in the ocular lens 31, and the slide block 311 and the slide groove 33 ensure that one side of the cross line and the scale mark of the scale are on the same straight line; then, the object stage 2 is leveled relative to the base 1 by adjusting the extension or the shortening of the leveling device 12, the leveling nut 122 positioned in the notch 13 is rotated through the notch 13 during leveling, the leveling nut 122 enables the threaded rod 121 to move up and down along the axial direction of the first counter bore 11 through threads, the threaded rod 121 moving up and down drives the object stage 2 to generate an inclination angle by taking one side far away from the threaded rod 121 as a rotation point, a plurality of leveling devices 12 are operated to adjust the air bubbles of the level instrument 21 to the central position of the level instrument 21 simultaneously according to the scheme, so that the leveling of the object stage 2 can be realized, in the process, whether the object stage 2 is level is judged through the inclination direction of the air bubbles of the level instrument 21, because the length and the width of the second counter bore 16 are both greater than the length and the width of the object stage 2, the object stage 2 generates displacement in the second counter bore 16, and then the object to be measured is, the distance between the lens barrel 3 and the object stage 2 is adjusted from near to far along the axial direction of the lens barrel 3 until the object can be clearly observed through the eyepiece 31, and then the object is placed on the object stage 2 and the length measurement is performed by using a reading microscope.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a reading microscope, includes base (1) that cavity and roof opening set up, sets up objective table (2) and the lens cone (3) of vertical slip setting on base (1) of keeping away from ground one side in base (1), lens cone (3) are kept away from objective table (2) one side and are provided with eyepiece (31), and it is provided with objective (32), its characterized in that to be close objective table (2) one side: the base (1) is provided with a plurality of first counter bores (11), a leveling device (12) is arranged between the objective table (2) and the base (1), and the leveling device (12) is located in the first counter bores (11).

2. A reading microscope according to claim 1 wherein: leveling device (12) are including threaded rod (121) and leveling nut (122), the one end fixed connection of threaded rod (121) objective table (2) bottom, threaded rod (121) with first counter bore (11) coaxial setting just is located in first counter bore (11), set up the intercommunication on the outer wall of base (1) breach (13) of first counter bore (11), leveling nut (122) are located in breach (13) and with threaded rod (121) threaded connection.

3. A reading microscope according to claim 2 wherein: the thread of the threaded rod (121) is a single fine thread, and the thread of the leveling nut (122) is a single fine thread corresponding to the thread of the threaded rod (121).

4. A reading microscope according to claim 1 wherein: a level gauge (21) is arranged on the object stage (2).

5. A reading microscope according to claim 1 wherein: the base (1) opening sets up one end and is provided with second counter bore (16), objective table (2) are located in second counter bore (16), second counter bore (16) are greater than objective table (2), first counter bore (11) are located on second counter bore (16).

6. A reading microscope according to claim 1 wherein: a mirror frame (14) is rotationally arranged in the base (1), a plane mirror is arranged on one side of the mirror frame (14), and a concave mirror is arranged on the other side of the mirror frame (14).

7. A reading microscope according to claim 1 wherein: the inner peripheral wall of one end, far away from the objective table (2), of the lens barrel (3) is provided with a sliding groove (33), the outer peripheral wall of the eyepiece (31) is provided with a sliding block (311) corresponding to the sliding groove (33), and after the sliding block (311) is matched with the sliding groove (33), any one side of cross lines of the eyepiece (31) is located on the same straight line on the scale line of the scale.

8. A reading microscope according to claim 1 wherein: one end of the objective lens (32) close to the objective table (2) is fixedly provided with a protection ring (321), and the inner diameter of the protection ring (321) is not smaller than that of the objective lens (32).

9. A reading microscope according to claim 1 wherein: the peripheral wall of the base (1) is provided with a light-transmitting opening (15).