CN212873020U

CN212873020U - Vibration isolation frame of optical platform and vibration isolation optical platform

Info

Publication number: CN212873020U
Application number: CN202021339227.6U
Authority: CN
Inventors: 陆珩; 孟祥敏; 曾翔宇; 王秀朋
Original assignee: Technical Institute of Physics and Chemistry of CAS
Current assignee: Technical Institute of Physics and Chemistry of CAS
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-04-02
Anticipated expiration: 2030-07-09

Abstract

The embodiment of the utility model provides an optical platform vibration isolation frame and vibration isolation optical platform are provided to optical instrument technical field. The optical platform vibration isolation frame is used for being installed on an optical platform for vibration isolation and comprises a cross beam, cross beam supports and connecting pieces, the upper ends of the cross beam supports are fixedly connected with the cross beam respectively, the lower end of each cross beam support is fixedly connected with the connecting piece, and the connecting pieces are used for being connected with supporting stand columns of the optical platform. The embodiment of the utility model provides an optical platform vibration isolation frame can make operating personnel be difficult to the collision test bench, makes human disturbance partly transmit for the earth through the support post to optical platform, and another part transmits for damping device through the support post to absorbed by damping device, thereby greatly reduces because human collision test bench and to experimental influence.

Description

Vibration isolation frame of optical platform and vibration isolation optical platform

Technical Field

The utility model relates to an optical instrument technical field especially relates to an optical platform vibration isolation frame and vibration isolation optical platform.

Background

The optical platform has extremely high flatness and vibration resistance, and is widely used as a precision optical test bed in various technical fields. The optical platform mainly comprises a supporting device and a test bench arranged on the supporting device, and engineering threaded holes are fully distributed in the test bench and used for fixing optical components. The supporting device is provided with a plurality of supporting upright posts, and a vibration damping device is arranged between the supporting upright posts and the test bed. External vibration is transmitted to the supporting upright post through the ground and then transmitted to the vibration damping device, and the vibration is absorbed by the vibration damping device, so that the interference of the external vibration on the test bed is reduced.

However, the existing optical platforms are all open, and although external vibration can be isolated and transmitted to the test bed through the supporting device, when an operator conducts an optical test beside the test bed, the waist of the operator often collides with the test bed unintentionally, so that disturbance is brought to the test bed, and the test is influenced.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an optical platform vibration isolation frame and vibration isolation optical platform for solve among the prior art optical platform easily by the people for colliding and bring the disturbance for the test bench, influence experimental problem.

An embodiment of the utility model provides an optical platform vibration isolation frame for install and carry out the vibration isolation on optical platform, optical platform vibration isolation frame includes crossbeam, beam support and connecting piece, and is a plurality of beam support's upper end respectively with crossbeam fixed connection, each beam support's lower extreme with connecting piece fixed connection, the connecting piece is used for being connected with optical platform's support post.

According to the utility model discloses an optical platform vibration isolation frame, the crossbeam support has the kink, the kink makes the crossbeam with there is the clearance crossbeam support and optical platform's test bench's side.

According to the utility model discloses an optical platform vibration isolation frame, the connecting piece package rubbing board body, the plate body with crossbeam support fixed connection, offer the mounting hole that is used for supplying the screw to pass on the plate body.

According to the utility model discloses an optical platform vibration isolation frame, the connecting piece includes first clamping piece, second clamping piece and fastener, first clamping piece with the second clamping piece passes through the connection can be dismantled to the fastener to form at both ends respectively and be used for acceping the support post with crossbeam support's centre gripping chamber.

According to the utility model discloses an optical platform vibration isolation frame, first clamping piece with the opposite face of second clamping piece is provided with the slipmat.

According to the utility model discloses an optical platform vibration isolation frame, the angle of buckling of kink is 90 ~ 150.

According to the utility model discloses an optical platform vibration isolation frame, the crossbeam is inside hollow pipeline roof beam.

According to the utility model discloses an optical platform vibration isolation frame, the crossbeam with crossbeam support can dismantle the connection.

An embodiment of the utility model provides a vibration isolation optical platform is still provided, including test bench and support post, support post with install vibration damper between the test bench, still include one or more as above-mentioned any kind optical platform vibration isolation frame, the connecting piece with support post fixed connection, just the crossbeam is not less than the last mesa of test bench.

According to the utility model discloses a vibration isolation optical platform, it is a plurality of optical platform vibration isolation frame install respectively in what the different sides of test bench correspond support post, adjacent two or three can dismantle on the crossbeam and be connected with the shelf, the shelf with there is the clearance in the last mesa of test bench.

The embodiment of the utility model provides an optical platform vibration isolation frame and vibration isolation optical platform constitute optical platform vibration isolation frame through crossbeam, beam support and connecting piece, install it and can make operating personnel be difficult to collide the test bench on optical platform's support post. When a human body touches the vibration isolation frame of the optical platform, one part of the disturbance of the human body to the optical platform is transmitted to the ground through the supporting upright posts, and the other part of the disturbance is transmitted to the vibration damper through the supporting upright posts and is absorbed by the vibration damper, so that the influence of the human body on the test due to the collision with the test bed is greatly reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an optical platform vibration isolation frame according to an embodiment of the present invention;

fig. 2 is a top view of a connector according to an embodiment of the present invention;

fig. 3 is a front view of a connector according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an optical platform vibration isolation frame according to another embodiment of the present invention;

fig. 5 is a schematic structural diagram of an embodiment of the vibration isolation optical platform of the present invention.

Reference numerals:

1. a cross beam; 2. a beam support; 20. a first bent portion; 21. a first rod portion; 22. a second rod portion; 23. a second bent portion; 24. reinforcing ribs; 3. a connecting member; 31. a plate body; 32. mounting holes; 33. a first clip piece; 34. a second clip; 35. a fastener; 36. a first clamping cavity; 37. a second clamping cavity; 38. a first clamping cavity centerline; 39. a second clamping cavity centerline; 4. supporting the upright post; 5. a test bed.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The optical platform vibration isolation frame according to an embodiment of the present invention will be described with reference to fig. 1 to 5.

Fig. 1 is a schematic structural diagram of an optical platform vibration isolation frame according to an embodiment of the present invention. Fig. 5 is a schematic structural diagram of a vibration isolation optical platform according to an embodiment of the present invention. The optical platform vibration isolation frame is used for being installed on an optical platform to conduct vibration isolation and comprises a crossbeam 1, crossbeam supports 2 and connecting pieces 3, the upper ends of the crossbeam supports 2 are fixedly connected with the crossbeam 1 respectively, the lower end of each crossbeam support 2 is fixedly connected with the connecting piece 3, and the connecting pieces 3 are used for 2 to be connected with supporting stand columns 4 of the optical platform. The connecting piece 3 can be connected with the side surface of the supporting upright post 4 and also can be connected with the supporting upright post 4 in a clamping manner.

The embodiment of the utility model provides an optical platform vibration isolation frame is used for installing on current optical platform, and is concrete, with connecting

piece

3 and 4 fixed connection of current optical platform's support post, makes operating personnel be difficult to collide the test bench, but collides crossbeam 1. Because the vibration damping device is arranged between the supporting upright post 4 and the test bed 5, when a human body touches the vibration isolation frame of the optical platform, one part of the disturbance of the human body to the optical platform is transmitted to the ground through the supporting upright post 4, and the other part of the disturbance is transmitted to the vibration damping device through the supporting upright post 4 and is absorbed by the vibration damping device, thereby greatly reducing the influence on the test due to the human body colliding with the test bed 5.

In order to isolate vibration of the optical platform vibration isolation frame, the beam support 2 and the connecting piece 3 need to avoid the test bed 5. The specific structure and connection of the beam supports 2 and the connectors 3 can be in various forms. For example, the connecting member 3 includes a connecting end connected to the support column 4 and a straight rod extending outward from the connecting end to be perpendicular to the support column 4, and the beam bracket 2 also includes a straight rod, and the straight rods of the connecting member and the beam bracket are perpendicularly connected to each other, so that the beam bracket 2 and the connecting member 3 are connected while avoiding the test stand 5. But are susceptible to injury when a person hits the right angle formed by such a vertical connection. Therefore, the embodiment of the utility model provides a position that is close to test bench 5 lower limb at beam bracket 2 or connecting piece 3 sets up the kink.

As shown in fig. 1, in the embodiment of the present invention, the beam support 2 has a first bending portion 20, and the first bending portion 20 makes the beam 1 and the beam support 2 have a gap with the side of the test bed 5 of the optical platform. The first bent portion 20 is formed by bending the beam bracket 2 toward the test bed 5, and the bending direction is perpendicular to the longitudinal direction of the beam 1. The beam 1 and the beam support 2 are both steel structural members such as stainless steel. The beam 1 and the beam bracket 2 can be welded and fixed, and can be detachably connected through bolts. The beam bracket 2 and the connecting piece 3 can be integrally formed or can be fixed by welding. The first bent portion 20 may be formed by thermally bending the beam bracket 2, or may be formed by welding two portions.

As shown in fig. 1 and 5, in an embodiment of the present invention, the connecting member 3 includes a plate 31, the plate 31 is fixedly connected to the beam bracket 2, and the plate 31 is provided with a mounting hole 32 for a screw to pass through. The plate body 31 is used to fix the beam bracket 2 to the side surface of the support column 4.

The mounting hole 32 may be a threaded hole or a straight hole. The plate body 31 can be a plate-shaped member which is connected with a beam bracket 2 and a supporting upright post 4 independently, and the plate body 31 can be square, round or other shapes, so the utility model discloses do not do the concrete limitation. A plurality of mounting holes 32 are uniformly distributed on the plate body 31, and when the plate body 31 is connected with the support upright 4, screws penetrate through the mounting holes 32 and fasten and connect the plate body 31 with the support upright 4. The plate body 31 may also be a plate-shaped member connecting the plurality of beam supports 2 and the plurality of support columns 4, and at this time, the plate body 31 is elongated, and the plurality of beam supports 2 and the plurality of support columns 4 are fixedly connected through the same plate body 31, so that the connection reliability can be improved.

Further, the beam support 2 is a rod-shaped member, the first bending portion 20 divides the beam support 2 into a first rod portion 21 and a second rod portion 22, and an end portion of the first rod portion 21 is fixedly connected with the plate body 31. The plate surface of the plate body 31 is parallel to the second rod portion 22 and the cross beam 1, that is, the cross beam 1 and the second rod portion 22 intersect to form a plane parallel to the plate surface of the plate body 31, so that the second rod portion 22 and the support post 4 are in a parallel state after the plate body 31 is connected to the side surface of the support post 4. Under this kind of structure, after being connected to support column 4 with this optical platform vibration isolation frame, second pole portion 22 can be parallel with the side of test bench 5, can guarantee to save space more under the condition that crossbeam support 2 keeps safe distance with the side of test bench 5.

Further, the beam support 2 further comprises a plurality of symmetrical support rod parts relative to the second rod part 22, one ends of the support rod parts are fixedly connected with the beam 1 respectively, and the other ends of the support rod parts are fixedly connected with the second rod part 22 respectively. Can strengthen the steadiness that crossbeam 1 and crossbeam support 2 are connected like this, increase the area that blocks to the human body through many spinal branchs pole portion simultaneously, further reduce the probability that operating personnel collided test bench 5.

It should be noted that, the shape and the structure of the beam bracket 2 can have various changes, and the embodiment of the present invention is not limited to this, as long as the beam bracket 2 and the test bed 5 can be ensured to keep a safe distance through the first bending portion 20, and it is ensured that the person does not make the optical platform vibration isolation frame collide with the test bed 5 when colliding with the beam 1 or the beam bracket 2.

In the embodiment of the present invention, the bending angle of the first bending portion 20 is 90 ° to 150 °. The bending angle of the first bending part 20 is specifically determined according to the distance between the support column 4 of the optical platform and the side surface of the test bed 5, the height of the connection point between the connection piece 3 and the support column 4, and the required safety distance between the beam support 2 and the test bed 5, so that the requirement that the vibration isolation frame of the optical platform can effectively prevent an operator from colliding with the test bed 5 is met, and too much space is not occupied. Wherein, the first bending part 20 with a larger angle can reduce the impact injury to people.

Taking the cross beam bracket 2 as a rod-shaped member as an example, as shown in fig. 5, when the support upright 4 is flush with the side surface of the test bed 5, a first bending part of 150 ° is adopted, and then the length proportion of the first rod part 21 and the second rod part 22 is adopted, so that the damage of the first bending part 20 to the human body is reduced under the condition that the cross beam bracket 2 and the test bed 5 keep a safer distance. In the case that the connection height of the connecting member 3 and the supporting column 4 is not changed, but the distance between the supporting column 4 and the side of the test bed 5 is relatively long, the bending angle of the first bending portion 20, for example, 120 °, can be adjusted accordingly to ensure that the cross beam 1 and the cross beam bracket 2 have a suitable distance from the test bed 5. When the support column 4 is located inside the test bed 5 and the side surface of the support column is far away from the side surface of the test bed 5, the first bent portion 20 is 90 ° under the condition that the first bent portion 20 is an obtuse angle and cannot enable the beam bracket 2 to keep a safe distance from the test bed 5. When the bent portion is 90 °, a reinforcing rib 24 is additionally provided between the first rod portion and the second rod portion to enhance the strength and rigidity of the cross beam bracket 2.

Fig. 2 is a top view of a connector according to an embodiment of the present invention, and fig. 3 is a front view of the connector according to an embodiment of the present invention. The utility model discloses an in the embodiment, connecting piece 3 is connected through the mode that the clamping piece was held tightly with support post 4, can realize exempting from the installation of punching, avoids the destruction of punching to support post. Specifically, the connecting member 3 includes a first clamping piece 33, a second clamping piece 34 and a fastener 35, wherein the first clamping piece 33 and the second clamping piece 34 are detachably connected by the fastener 35, and a first clamping cavity 36 for accommodating the support column 4 and a second clamping cavity 37 for accommodating the beam bracket 2 are respectively formed at two ends. Wherein, the end of the beam bracket 2 connected with the connecting piece 3 is provided with a rod part for the second clamping cavity 37 to tightly hold. The fastening member 35 may be a bolt and a nut, the first clamping piece 33 and the second clamping piece 34 are correspondingly provided with through holes, and the bolt passes through the through holes and is locked by the nut, so that the first clamping piece 33 and the second clamping piece 34 are pressed tightly to fix the beam bracket 2 on the support upright 4. The fastening member 35 may also be another structure for connecting and fixing the first clamping piece 33 and the second clamping piece 34, and the embodiment of the invention is not limited in particular.

It should be noted that the first clamping piece 33 and the second clamping piece 34 are not limited to the shapes and structures shown in fig. 2 and 3, and the relative position of the beam bracket 2 with respect to the support column 4 can be adjusted by adjusting the angles of the center line 38 of the first clamping cavity and the center line 39 of the second clamping cavity. For example, in the above-described embodiment, the cross beam bracket 2 is a rod-shaped member and is divided into the first rod portion 21 and the second rod portion 22 by the first bending portion 20, so that the first clamping cavity center line 38 is parallel to the second rod portion 22, and the second clamping cavity center line 39 is parallel to the first rod portion 21. This allows to grip the first bar portion 21 directly by means of the second gripping chamber 37, ensuring that the second bar portion 22 is parallel to the support upright 4.

Further, the beam bracket 2 further includes a second bending portion 23, as shown in fig. 4, the structure of the vibration isolation frame of the optical platform according to another embodiment of the present invention is schematically illustrated, and the second bending portion 23 is located between the one end of the beam bracket 2 connected to the connecting member 3 and the first bending portion 20. The rod part between the end of the beam bracket 2 connected with the connecting piece 3 and the second bending part 23 is parallel to the second rod part 22. With this structure, when the center line 38 of the first clamping cavity and the center line 39 of the second clamping cavity formed by the first clamping piece 33 and the second clamping piece 34 are parallel, the second rod part 22 is parallel to the support post 4 after the beam bracket 2 is fixed to the support post 4 by the connecting piece 3.

Further, for stability and reliability of being connected between strengthening first clamping piece 33 and second clamping piece 34 and support post 4 and crossbeam support 2, the embodiment of the utility model provides a set up the slipmat at the opposite face of first clamping piece 33 and second clamping piece 34. The non-slip mat is made of silica gel.

Because generally install more optical components and parts on the optics platform, consequently can have more cable for the optics platform is more mixed and disorderly, influences experimental environment, touches the cable easily in the experimentation and arouses rocking of test bench 5. To this end, the utility model discloses crossbeam 1 sets up to become inside hollow pipeline roof beam. The hollow conduit is used for accommodating cables. The steel plate can be directly made of an existing steel pipe or bent by a steel plate. In addition, the hollow beam 1 can also reduce the mass of the vibration isolation frame of the optical platform and reduce the load of the vibration isolation frame on the connecting piece 3.

Furthermore, in order to facilitate the penetration of cables, the beam 1 is detachably connected with the beam support 2. Specifically, a mounting hole is formed in the position, corresponding to the beam support 2, of the beam 1, and a threaded hole is formed in the position, corresponding to the beam support 2, of the beam. When installing this optical platform vibration isolation frame, can be earlier fixed with support post 4 with crossbeam support 2 and connecting piece 3 as a whole, then wear to locate crossbeam 1 with the cable, the rethread screw is fixed in crossbeam support 2 with crossbeam 1 on.

The vibration isolation optical platform according to an embodiment of the present invention is described below with reference to fig. 5.

As shown in fig. 5, the vibration isolation optical platform comprises a test stand, a support column 4 and one or more optical platform vibration isolation frames according to the above embodiments. A vibration damping device (not shown in the figure) is arranged between the supporting upright 4 and the test bed 5. Connecting piece 3 and support column 4 fixed connection, and crossbeam 1 is not less than the last mesa of test bench 5 to the realization is to the complete protection of 5 sides of test bench, avoids operating personnel to collide test bench 5 from the side. In the prior art, a keyboard, a mouse and other devices can be placed on an optical platform, and an operator can still disturb the test bed 5 when using the keyboard and the mouse. The embodiment of the utility model provides an in crossbeam 1 can be used to press from both sides atress equipment such as dress keyboard, mouse layer board to further keep apart the disturbance.

The embodiment of the utility model provides an in, can arrange in a flexible way on optical platform according to actual demand the utility model discloses optical platform vibration isolation frame. For example, the test stand may be installed on the side where the operator frequently works, or may be installed on each of a plurality of sides of the test stand 5. When a plurality of optical platform vibration isolation frames are installed, the optical platform vibration isolation frames are respectively installed on the supporting upright posts 4 corresponding to different sides of the test bed 5, and shelves are detachably connected to two or three adjacent cross beams 1. The shelf is used for placing a mouse and a keyboard. The shelf and the cross beam 1 can be connected through screws, specifically, threaded holes are respectively formed in the positions corresponding to the shelf and the cross beam 1, the shelf and the cross beam 1 are fixedly connected through screws, and the shelf and the cross beam 1 can be detached when not needed. The shelf has a gap with the upper table surface of the test bed 5. If the cross beam 1 is higher than the upper table surface of the test bed 5, the bottom surface of the shelf can be a plane; if the cross beam 1 is flush with the upper table top of the test bed 5, a cushion block is arranged at the joint of the shelf and the cross beam 1, so that a certain gap is kept between the bottom of the shelf and the upper table top of the test bed 5. Of course, the shelf can also be directly placed on the cross beam 1, and the shelf is positioned on the cross beam 1 by arranging a limiting block at the bottom of the shelf.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The optical platform vibration isolation frame is characterized by being used for being installed on an optical platform for vibration isolation and comprising a cross beam, a cross beam support and a connecting piece, wherein the upper ends of the cross beam supports are fixedly connected with the cross beam respectively, the lower end of each cross beam support is fixedly connected with the connecting piece, and the connecting piece is used for being connected with a supporting stand column of the optical platform.

2. The optical platform vibration isolation frame according to claim 1, wherein the beam bracket has a bent portion, and the bent portion allows the beam and the beam bracket to have a gap with a side of a test bed of the optical platform.

3. The vibration isolation frame for an optical platform as claimed in claim 1, wherein the connecting member comprises a plate body, the plate body is fixedly connected to the beam bracket, and the plate body is provided with mounting holes for screws to pass through.

4. The optical platform vibration isolation frame according to claim 1, wherein the connecting member comprises a first clamping piece, a second clamping piece and a fastening member, the first clamping piece and the second clamping piece are detachably connected by the fastening member, and a clamping cavity for accommodating the supporting upright and the beam bracket is formed at both ends respectively.

5. The optical platform vibration isolation frame according to claim 4, wherein the opposing faces of the first clamping piece and the second clamping piece are provided with anti-slip pads.

6. The vibration isolation frame for optical platforms as claimed in claim 2, wherein the bending angle of the bending portion is 90 ° to 150 °.

7. The optical platform vibration isolation frame according to any one of claims 1 to 5, wherein the cross beam is a hollow pipe beam.

8. The optical platform vibration isolation frame according to any one of claims 1 to 5, wherein the beam is detachably connected to the beam bracket.

9. A vibration isolation optical platform comprises a test bed and a supporting upright post, wherein a vibration damping device is arranged between the supporting upright post and the test bed, and the vibration isolation optical platform is characterized by further comprising one or more optical platform vibration isolation frames according to any one of claims 1 to 8, the connecting piece is fixedly connected with the supporting upright post, and the cross beam is not lower than the upper table top of the test bed.

10. The vibration isolation optical platform according to claim 9, wherein a plurality of the optical platform vibration isolation frames are respectively installed on the supporting columns corresponding to different sides of the test bed, a shelf is detachably connected to two or three adjacent cross beams, and a gap exists between the shelf and the upper table surface of the test bed.