CN214039879U - Mechanical device for vibration isolation of interferometer - Google Patents

Abstract

The utility model provides a mechanical device for interferometer vibration isolation, which comprises a base, wherein a support module is arranged on the base, the lower surface of the support module is provided with a vibration isolation device, the vibration isolation device comprises a damping shaft, the lower end of the damping shaft is provided with a linking module, two sides of the linking module are respectively and rotatably connected with a force unloading rod through a rotating shaft, one end of the force unloading rod, which is far away from the linking module, is rotatably connected with a rectangular slider through a rotating shaft, one side of the rectangular slider is provided with a first damping spring, the lower surface of the rectangular slider is slidably connected with a rectangular chute, the lower surface of the linking module is provided with a second damping spring, the lower end of the second damping spring is provided with a support shaft, and the influence of slight vibration on measuring interference fringes can be avoided through the vibration isolation device, so that the measuring accuracy is improved, and the structure is simple, the price is lower, and the popularization value is certain.

Description

Mechanical device for vibration isolation of interferometer

Technical Field

The utility model relates to a technical field of interferometer specifically is a mechanical device of interferometer vibration isolation.

Background

The interferometer is an instrument manufactured according to the principle of light interference, two light beams from a light source are completely split, pass through different optical paths respectively, and then are combined to display interference fringes.

In the current existing mechanical device for interferometer vibration isolation, for example, in the technical structure of application document CN201610481840.3, the device includes a front imaging objective, an interferometer, an imaging coupling mirror and a photodetector, the interferometer includes two identical isosceles trapezoid prisms, the lower bottom surfaces of the two isosceles trapezoids are glued, the glued surfaces are beam splitting surfaces, the upper bottom surfaces of the two isosceles trapezoids are reflecting surfaces, and the 4 waist surfaces of the two isosceles trapezoid prisms, wherein the two adjacent waist surfaces are two incident ends of the interferometer, and the other two waist surfaces are two exit ends of the interferometer.

Based on this, we need to develop a vibration isolation device conforming to the interferometer, so as to avoid the influence of slight vibration on the measured interference fringes, improve the measurement accuracy, and have simple structure, lower price and certain popularization value.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a mechanical device for interferometer vibration isolation for solve the technical problem who proposes among the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a mechanical device for vibration isolation of an interferometer comprises a base, wherein a support module is arranged on the base, a vibration isolation device is arranged on the lower surface of the support module, the vibration isolation device comprises a damping shaft, the upper end of the damping shaft is mutually connected with the lower surface of the support module, a linking module is arranged at the lower end of the damping shaft, two sides of the linking module are respectively and rotatably connected with a force unloading rod through a rotating shaft, one end, away from the linking module, of each force unloading rod is rotatably connected with a rectangular sliding block through a rotating shaft, a first damping spring is arranged on one side of each rectangular sliding block, the lower surface of each rectangular sliding block is slidably connected with a rectangular sliding groove, the lower surface of the outer wall of each rectangular sliding groove is respectively arranged on two sides of the lower surface of the inner wall of the base, a second damping spring is arranged on the lower surface of the linking module, and a support shaft is arranged at the lower end of the second damping spring, the lower end of the supporting shaft is connected with the middle position of the lower surface of the base.

Furthermore, every damping spring keeps away from rectangle slider one end and all is provided with the connecting axle, every damping spring one end is kept away from to the connecting axle all with base inner wall one side interconnect.

Furthermore, a limiting module is arranged on one side, close to each rectangular sliding groove, and each limiting module is provided with an elastic layer.

Furthermore, directional sliding blocks are arranged on two sides of the supporting module respectively, each directional sliding block is connected with a directional sliding groove in a sliding mode, and each directional sliding groove is formed in two sides of the inner wall of the base respectively.

Furthermore, an interferometer body is arranged on one side of the upper surface of the supporting module.

Further, four vertex angle positions of base outer wall lower surface are provided with interior foot rest respectively, every interior foot rest lower extreme all is provided with outer foot rest, every outer foot rest lower extreme all is provided with the friction callus on the sole.

Further, every outer foot rest inner wall lower surface all is provided with third damping spring, every third damping spring upper end all interconnects with interior foot rest lower extreme.

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

the utility model discloses a vibration isolation device has realized avoiding slight vibration to measuring the influence of measuring the interference fringe to improved measuring accuracy, and simple structure, the price is lower, has certain spreading value, through spacing module, realized the injecing to rectangle slider range of motion, it is too big to avoid the range of motion, rectangle slider roll-off rectangle spout, through the friction callus on the sole, realized the increase to the biggest static friction power of contact surface, through third damping spring, realized preliminary shock attenuation isolation.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the interior of the base of the present invention;

FIG. 3 is a schematic cross-sectional view of the inner part of the outer frame of the present invention;

fig. 4 is an enlarged schematic view of the foot stool of the present invention.

In the figure: 1. a base; 11. a directional chute; 12. an inner foot rest; 121. a third damping spring; 13. an outer foot rest; 131. rubbing the foot pad; 2. a support module; 21. a directional slider; 3. a vibration isolation device; 31. a shock-absorbing shaft; 32. a linking module; 33. a force-releasing rod; 34. a rectangular slider; 35. a first damping spring; 351. a connecting shaft; 36. a rectangular chute; 37. a second damping spring; 371. a support shaft; 38. a limiting module; 381. an elastic layer; 4. an interferometer body.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1-4, a mechanical apparatus for interferometer vibration isolation includes a base 1, a support module 2 is disposed on the base 1, a vibration isolation apparatus 3 is disposed on a lower surface of the support module 2, the vibration isolation apparatus 3 includes a damping shaft 31, an upper end of the damping shaft 31 is connected to a lower surface of the support module 2, a connection module 32 is disposed at a lower end of the damping shaft 31, two sides of the connection module 32 are rotatably connected to a force unloading rod 33 through a rotation shaft, an end of each force unloading rod 33 away from the connection module 32 is rotatably connected to a rectangular slider 34 through a rotation shaft, a first damping spring 35 is disposed at one side of each rectangular slider 34, a lower surface of each rectangular slider 34 is slidably connected to a rectangular sliding groove 36, a lower surface of an outer wall of each rectangular sliding groove 36 is disposed at two sides of a lower surface of an inner wall of the base 1, link up the module 32 lower surface and be provided with second damping spring 37, second damping spring 37 lower extreme is provided with support shaft 371, support shaft 371 lower extreme and base 1 lower surface intermediate position interconnect.

Please refer to fig. 1 and fig. 2, one end of each first damping spring 35 away from the rectangular sliding block 34 is provided with a connecting shaft 351, one end of each connecting shaft 351 away from the first damping spring 35 is connected with one side of the inner wall of the base 1, the first damping spring 35 is connected and fixed through the connecting shaft 351, one side close to each rectangular sliding groove 36 is provided with a limit module 38, each limit module 38 is provided with an elastic layer 381, the limit of the moving amplitude of the rectangular sliding block 34 is realized through the limit module 38, the rectangular sliding block 34 slides out of the rectangular sliding groove 36, two sides of the support module 2 are respectively provided with a directional sliding block 21, each directional sliding block 21 is connected with a directional sliding groove 11 in a sliding manner, each directional sliding groove 11 is respectively arranged on two sides of the inner wall of the base 1, and through the mutual fit between the directional sliding groove 11 and the directional sliding block 21, realized reciprocating supporting module 2 orientation, supporting module 2 upper surface one side is provided with interferometer body 4, with interfering interferometer body 4, has realized the drawing function.

Please refer to fig. 3 and fig. 4, inner foot frames 12 are respectively disposed at four vertex angles on the lower surface of the outer wall of the base 1, an outer foot frame 13 is disposed at the lower end of each inner foot frame 12, a friction foot frame 131 is disposed at the lower end of each outer foot frame 13, the maximum static friction force on the contact surface is increased through the friction foot frame 131, a third damping spring 121 is disposed on the lower surface of the inner wall of each outer foot frame 13, the upper end of each third damping spring 121 is connected to the lower end of the inner foot frame 12, and preliminary damping isolation is achieved through the third damping spring 121.

The utility model discloses a concrete operation as follows:

firstly, the whole device is placed on a horizontal table top, then whether potential safety hazards exist in all devices in the whole device is checked, a power supply is switched on after no potential safety hazards exist, when the horizontal table top vibrates, the support module 2 slightly vibrates downwards (upwards), then the damping shaft 31 moves downwards (upwards), the second damping spring 37 compresses (stretches) to discharge force, meanwhile, the opening angle between the two stress-discharging rods 33 is increased (reduced), the rectangular sliding block 34 is pushed (pulled) to slide in the rectangular sliding groove 36, then an acting force is given to the first damping spring 35 to compress (stretch) the first damping spring, secondary stress discharge is carried out, meanwhile, the third damping spring 121 connecting the inner foot frame 12 and the outer foot frame 13 also carries out third stress discharge through compression and stretching, and vibration isolation of the interferometer body 4 is achieved.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims (7)

1. A mechanical device for vibration isolation of an interferometer comprises a base (1) and is characterized in that a supporting module (2) is arranged on the base (1), a vibration isolation device (3) is arranged on the lower surface of the supporting module (2), the vibration isolation device (3) comprises a damping shaft (31), the upper end of the damping shaft (31) is connected with the lower surface of the supporting module (2), a linking module (32) is arranged at the lower end of the damping shaft (31), two sides of the linking module (32) are respectively and rotatably connected with a force unloading rod (33) through rotating shafts, one end, far away from the linking module (32), of each force unloading rod (33) is rotatably connected with a rectangular sliding block (34) through a rotating shaft, a first damping spring (35) is arranged on one side of each rectangular sliding block (34), and the lower surface of each rectangular sliding block (34) is slidably connected with a rectangular sliding chute (36), every rectangle spout (36) outer wall lower surface sets up respectively in base (1) inner wall lower surface both sides, it is provided with second damping spring (37) to link up module (32) lower surface, second damping spring (37) lower extreme is provided with back shaft (371), back shaft (371) lower extreme and base (1) lower surface intermediate position interconnect.

2. An interferometer vibration isolation mechanical device according to claim 1, wherein a connecting shaft (351) is arranged at one end of each first damping spring (35) far away from the rectangular sliding block (34), and one end of each connecting shaft (351) far away from the first damping spring (35) is connected with one side of the inner wall of the base (1).

3. An interferometer vibration isolation mechanism as claimed in claim 1, wherein a spacing module (38) is provided adjacent to one side of each rectangular runner (36), and an elastic layer (381) is provided on each spacing module (38).

4. The interferometer vibration isolation mechanical device according to claim 1, wherein two sides of the support module (2) are respectively provided with a directional slider (21), each directional slider (21) is slidably connected with a directional runner (11), and each directional runner (11) is respectively arranged on two sides of the inner wall of the base (1).

5. Interferometer vibration isolation mechanism according to claim 4, wherein the interferometer body (4) is arranged on the side of the upper surface of the support module (2).

6. The interferometer vibration isolation mechanical device according to claim 4, wherein four corner positions of the lower surface of the outer wall of the base (1) are respectively provided with an inner foot stand (12), the lower end of each inner foot stand (12) is provided with an outer foot stand (13), and the lower end of each outer foot stand (13) is provided with a friction foot stand (131).

7. An interferometer vibration isolation mechanism as claimed in claim 6, wherein each outer leg (13) is provided with a third damping spring (121) on the lower surface of the inner wall thereof, and the upper end of each third damping spring (121) is interconnected with the lower end of the inner leg (12).

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