Anti-seismic platform for high-precision machining of galvanometer

Abstract

The utility model belongs to the technical field of experimental equipment, and particularly relates to an anti-seismic platform for galvanometer high-precision machining, which comprises a support and a marble platform, the support comprises a plurality of struts and a main beam and an auxiliary beam connected among the struts, a scanning mechanism is arranged at the top of the marble platform, and an inverted trapezoidal sliding column is arranged at the bottom of the marble platform. A plurality of damping mechanisms are arranged between the support and the marble platform, each damping mechanism comprises two hydraulic cavities and a sliding groove which are communicated with each other, the two hydraulic cavities are filled with hydraulic oil and provided with springs and piston heads, the bottoms of the springs are connected with the bottoms of the hydraulic cavities, and the tops of the springs are connected with the piston heads. A sliding block and a spring are arranged in the sliding groove, the sliding block is provided with a sliding part, the spring pushes the sliding block and enables the sliding part to abut against one side of the sliding column, the piston head of the hydraulic cavity located at the top presses hydraulic oil below into the hydraulic cavity located at the bottom, and the piston head in the hydraulic cavity located at the bottom is pushed to compress the spring to achieve the damping effect.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental equipment, in particular to an anti-vibration platform for high-precision machining of galvanometers. Background Art

[0002] Optical platforms, also known as optical breadboards, optical desktops, scientific desktops, and experimental platforms, provide horizontal and stable tabletops. Generally, platforms need to be isolated from vibrations to ensure that they are not disturbed by external factors. Optical platforms pursue horizontality. First of all, the entire tabletop is extremely flat during processing. Then the tabletop is placed on four connected airbags to ensure the level of the tabletop. The tabletop is covered with engineering threaded holes arranged in a square. These holes and corresponding screws can be used to fix optical components. Existing optical platforms are usually composed of all-steel structures. The shock absorption effect of the optical platform can be guaranteed by airbags, but the steel structure optical platform is greatly affected by thermal expansion and contraction. Therefore, marble is also used as the material of the platform. However, due to the heavy weight of the marble platform, the use of traditional airbags results in relatively poor shock absorption effect. Utility Model Content

[0003] The utility model aims to provide a seismic-resistant platform for high-precision machining of galvanometers, aiming to solve the technical problems in the prior art that the marble platform is heavy and the use of traditional airbags leads to relatively poor shock absorption effect.

[0004] To achieve the above-mentioned purpose, an embodiment of the utility model provides a seismic-resistant platform for high-precision machining of galvanometers, including a bracket and a marble platform, the bracket including a plurality of pillars and a main beam and a secondary beam connected between the plurality of pillars, a scanning mechanism is provided on the top of the marble platform, an inverted trapezoidal sliding column is provided on the bottom of the marble platform, a plurality of shock-absorbing mechanisms are provided between the bracket and the marble platform, the shock-absorbing mechanism includes two hydraulic chambers and a slide groove that are interconnected, both hydraulic chambers are filled with hydraulic oil and are provided with a spring and a piston head, the bottom of the spring is connected to the bottom of the hydraulic chamber, and the top is connected to the piston head, the sliding column is connected to the top of the piston head in one of the hydraulic chambers, a slider and the spring are provided in the slide groove, the slider is provided with a sliding portion, the spring pushes the slider and causes the sliding portion to abut against one side of the sliding column.

[0005] Preferably, a limit block is provided at the top of the hydraulic chamber, the bottom of the limit block abuts against the top of the piston head, and the top of the limit block is used to limit the descending height of the sliding column.

[0006] Preferably, the sliding portion comprises a rotation groove and a roller, one side of the rotation groove is fixedly connected to the sliding block, the roller is rollingly connected in the rotation groove, and one side of the roller abuts against an inclined surface of one side of the sliding column.

[0007] Preferably, the sliding part further includes a pulley, and the pulley is arranged on both sides of the sliding block to enable the sliding block to slide in the direction of the sliding column, and the radius of the pulley is greater than the radius of the roller.

[0008] Preferably, the sub-beam is connected to the tops of two adjacent pillars, and the slide groove is arranged at the top of the sub-beam and opens in a direction close to the slide column.

[0009] Preferably, a telescopic chamber is provided on the top of the hydraulic chamber, the slide groove is connected to the telescopic chamber, the bottom of the telescopic chamber is connected to the top of the piston head, and one side of the slide column is slidably connected to the inner wall of the telescopic chamber.

[0010] Preferably, a conduit is provided between the two hydraulic chambers for connecting the two hydraulic chambers.

[0011] Preferably, the scanning mechanism includes a gantry bracket, a mounting bracket and a driving guide rail, the mounting bracket is used to install the galvanometer, the mounting bracket is slidably connected to the top of the gantry bracket, and the driving guide rail is arranged on the top of the marble platform.

[0012] The above one or more technical solutions in the anti-vibration platform for high-precision processing of galvanometers provided by the embodiment of the utility model have at least one of the following technical effects:

[0013] When in use, the material is fixed and scanned by the scanning mechanism on the top of the marble platform, and shock absorption is achieved through the shock absorption mechanism. During the shock absorption process, the vibration is transmitted to the piston head of the hydraulic chamber arranged at the top through the sliding column at the bottom of the marble platform, and the piston head compresses the spring. During the compression process, the piston head of the hydraulic chamber at the top presses the hydraulic oil below into the hydraulic chamber at the bottom, and pushes the piston head in the hydraulic chamber at the bottom to compress the spring to achieve shock absorption effect. In this process, the inverted trapezoidal side wall of the sliding column pushes the slider to compress the spring in the slide groove, thereby increasing the elastic resistance, reducing the vibration amplitude of the marble platform, and helping the marble platform to recover stability faster after vibration, thereby achieving shock absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the overall structure of a seismic-resistant platform for high-precision machining of galvanometers provided in an embodiment of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the structure at A.

[0016] Figure 3 A side sectional view of a seismic-resistant platform for high-precision machining of galvanometers provided in an embodiment of the utility model.

[0017] Figure 4 for Figure 3Schematic diagram of the structure at location B.

[0018] Among them, the reference numerals in the figure are:

[0019] 1-bracket, 11-pillar, 12-main beam, 13-secondary beam, 2-marble platform, 21-sliding column, 3-scanning mechanism, 31-gantry bracket, 32-mounting bracket, 33-driving guide rail, 4-shock absorbing mechanism, 41-hydraulic chamber, 411-limiting block, 412-conduit, 42-slide groove, 421-slider, 43-spring, 44-piston head, 45-sliding part, 451-rotating groove, 452-roller, 453-pulley, 46-telescopic chamber. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0024] In one embodiment of the present invention, Figure 1-Figure 4 As shown, a seismic-resistant platform for high-precision machining of galvanometers is provided, including a bracket 1 and a marble platform 2, wherein the bracket 1 includes a plurality of pillars 11 and a main beam 12 and a secondary beam 13 connected between the plurality of pillars 11, a scanning mechanism 3 is provided on the top of the marble platform 2, an inverted trapezoidal slide column 21 is provided on the bottom of the marble platform 2, a plurality of shock absorbing mechanisms 4 are provided between the bracket 1 and the marble platform 2, the shock absorbing mechanism 4 includes two hydraulic chambers 41 and a slide groove 42 which are interconnected, the two hydraulic chambers 41 are filled with hydraulic oil and are provided with a spring 43 and a piston head 44, the bottom of the spring 43 is connected to the bottom of the hydraulic chamber 41, and the top is connected to the piston head 44, the slide column 21 is connected to the top of the piston head 44 in one of the hydraulic chambers 41, a slider 421 and the spring 43 are provided in the slide groove 42, the slider 421 is provided with a sliding portion 45, the spring 43 pushes the slider 421, and the sliding portion 45 abuts against one side of the slide column 21.

[0025] Furthermore, a limit block 411 is provided at the top of the hydraulic chamber 41 , the bottom of the limit block 411 abuts against the top of the piston head 44 , and the top of the limit block 411 is used to limit the descending height of the sliding column 21 . Specifically, during the shock absorption process, the vibration is transmitted to the piston head 44 of the hydraulic chamber 41 arranged at the top through the sliding column 21 at the bottom of the marble platform 2, and the piston head 44 compresses the spring 43. In the compression process, the piston head 44 of the hydraulic chamber 41 at the top presses the hydraulic oil below into the hydraulic chamber 41 at the bottom, and pushes the piston head 44 in the hydraulic chamber 41 at the bottom to compress the spring 43 to achieve the shock absorption effect. During this process, the sliding column 21 gradually moves downward in the hydraulic chamber 41. When the sliding height of the sliding column 21 reaches the maximum value, the side wall of the sliding column 21 abuts against the top of the limit block 411. After the shock absorption is completed, the spring 43 in the hydraulic chamber 41 at the bottom pushes the piston head 44 to move upward, and squeezes the hydraulic oil into the hydraulic chamber 41 at the top again, and lifts the piston head 44 of the hydraulic chamber 41 at the top to abut against the bottom of the limit block 411 to stop, thereby achieving the limiting effect of the up and down movement range of the sliding column 21.

[0026] Furthermore, the sliding part 45 includes a rotating groove 451 and a roller 452. One side of the rotating groove 451 is fixedly connected to the slider 421. The roller 452 is rollingly connected in the rotating groove 451. One side of the roller 452 abuts against the inclined surface of one side of the sliding column 21. Specifically, during the shock absorption process, the sliding column 21 gradually moves downward in the hydraulic chamber 41, and the inverted trapezoidal side wall of the sliding column 21 pushes the slider 421 to compress the spring 43 located in the sliding groove 42. By setting the sliding part 45, the roller 452 can directly contact the side wall of the sliding column 21 instead of the slider 421, and when the sliding column 21 moves downward, the side wall of the sliding column 21 pushes the roller 452 to roll, and pushes the slider 421 to compress the spring 43, so as to achieve a better effect of increasing the elastic resistance.

[0027] Furthermore, the sliding part 45 further includes pulleys 453, which are arranged on both sides of the slider 421 and are used to enable the slider 421 to slide in the direction of the slide column 21, and the radius of the pulley 453 is greater than the radius of the roller 452. Specifically, during the shock absorption process, the slide column 21 gradually moves downward in the hydraulic chamber 41, and the inverted trapezoidal side wall of the slide column 21 pushes the slider 421 to compress the spring 43 located in the slide groove 42. By setting the sliding part 45, the roller 452 can directly contact the side wall of the slide column 21 instead of the slider 421, and when the slide column 21 moves downward, the side wall of the slide column 21 pushes the roller 452 to roll and pushes the slider 421 to compress the spring 43, thereby achieving a better effect of increasing the elastic resistance, and in the process of the slider 421 sliding in the slide groove 42, a smoother sliding effect can be achieved by setting the pulley 453.

[0028] Furthermore, the sub-beam 13 is connected to the top of two adjacent pillars 11, and the slide groove 42 is arranged at the top of the sub-beam 13 and opens in the direction close to the slide column 21. Specifically, the slide groove 42 opens in the direction close to the slide column 21 to achieve a better pushing effect. In a better embodiment, an additional slide groove 42 can be opened at the bottom of the slide groove 42 in the same extending direction, and the upper and lower slide grooves 42 are connected by a straight through groove, and an inverted T-shaped slider 421 extends from the bottom of the slider 421. The inverted T-shaped slider 421 is clamped at the top of the slide groove 42 located below to achieve a limiting effect, so as to prevent the spring 43 from tilting due to the extrusion of the slide column 21, thereby achieving a better use effect.

[0029] Furthermore, a telescopic chamber 46 is provided at the top of the hydraulic chamber 41, the slide groove 42 is connected to the telescopic chamber 46, the bottom of the telescopic chamber 46 is connected to the top of the piston head 44, and one side of the slide column 21 is slidably connected to the inner wall of the telescopic chamber 46. Specifically, the telescopic chamber 46 is used to install the slide column 21 of the marble platform 2, and the telescopic chamber 46 and the hydraulic chamber 41 are separated by a limit block 411. During the shock absorption process, the vibration is transmitted to the piston head 44 of the hydraulic chamber 41 arranged at the top through the slide column 21 at the bottom of the marble platform 2, and the piston head 44 compresses the spring 43. In the compression process, the piston head 44 of the hydraulic chamber 41 at the top presses the hydraulic oil below into the hydraulic chamber 41 at the bottom, and pushes the piston head 44 in the hydraulic chamber 41 at the bottom to compress the spring 43 to achieve the shock absorption effect.

[0030] Furthermore, a conduit 412 is provided between the two hydraulic chambers 41 for connecting the two hydraulic chambers 41. Specifically, during the shock absorption process, the vibration is transmitted to the piston head 44 of the hydraulic chamber 41 disposed at the top through the sliding column 21 at the bottom of the marble platform 2, and the piston head 44 compresses the spring 43. In the compression process, the piston head 44 of the hydraulic chamber 41 at the top presses the hydraulic oil below into the hydraulic chamber 41 at the bottom through the conduit 412, and pushes the piston head 44 in the hydraulic chamber 41 at the bottom to compress the spring 43 to achieve the shock absorption effect.

[0031] Furthermore, the scanning mechanism 3 includes a gantry bracket 311, a mounting bracket 321 and a driving guide rail 33, wherein the mounting bracket 321 is used to mount the galvanometer, the mounting bracket 321 is slidably connected to the top of the gantry bracket 311, and the driving guide rail 33 is arranged on the top of the marble platform 2.

[0032] Working principle: When in use, the material is fixed and scanned by the scanning mechanism 3 on the top of the marble platform 2, and shock absorption is achieved through the shock absorption mechanism 4. During the shock absorption process, the vibration is transmitted to the piston head 44 of the hydraulic chamber 41 arranged at the top through the sliding column 21 at the bottom of the marble platform 2, and the piston head 44 compresses the spring 43. During the compression process, the piston head 44 of the hydraulic chamber 41 at the top presses the hydraulic oil below into the hydraulic chamber 41 at the bottom, and pushes the piston head 44 in the hydraulic chamber 41 at the bottom to compress the spring 43 to achieve shock absorption effect. In this process, the side wall of the inverted trapezoidal sliding column 21 pushes the slider 421 to compress the spring 43 in the slide groove 42, thereby increasing the elastic resistance, reducing the vibration amplitude of the marble platform 2, and helping the marble platform 2 to recover stability faster after vibration, thereby achieving shock absorption effect.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A seismic-resistant platform for high-precision machining of galvanometers, characterized by: It includes a bracket and a marble platform, the bracket includes a plurality of pillars and a main beam and a secondary beam connected between the plurality of pillars, a scanning mechanism is provided on the top of the marble platform, an inverted trapezoidal slide column is provided on the bottom of the marble platform, a plurality of shock absorbing mechanisms are provided between the bracket and the marble platform, the shock absorbing mechanism includes two hydraulic chambers and slide grooves that are interconnected, the two hydraulic chambers are filled with hydraulic oil and are provided with a spring and a piston head, the bottom of the spring is connected to the bottom of the hydraulic chamber, and the top is connected to the piston head, the slide column is connected to the top of the piston head in one of the hydraulic chambers, a slider and the spring are provided in the slide groove, the slider is provided with a sliding part, the spring pushes the slider and makes the sliding part abut against one side of the slide column.

2. The anti-vibration platform for high-precision machining of galvanometer mirrors according to claim 1, characterized in that: A limit block is provided on the top of the hydraulic chamber, the bottom of the limit block abuts against the top of the piston head, and the top of the limit block is used to limit the descending height of the sliding column.

3. The anti-vibration platform for high-precision machining of galvanometer mirrors according to claim 1, characterized in that: The sliding part comprises a rotating groove and a roller, one side of the rotating groove is fixedly connected to the sliding block, the roller is rollingly connected in the rotating groove, and one side of the roller abuts against an inclined surface of one side of the sliding column.

4. The anti-vibration platform for high-precision machining of galvanometer mirrors according to claim 3, characterized in that: The sliding part further comprises a pulley, which is arranged on both sides of the sliding block and is used to enable the sliding block to slide in the direction of the sliding column, and the radius of the pulley is greater than the radius of the roller.

5. The anti-vibration platform for high-precision machining of galvanometer mirrors according to any one of claims 1 to 4, characterized in that: The auxiliary beam is connected to the tops of two adjacent pillars, and the slide groove is arranged at the top of the auxiliary beam and opens in a direction close to the slide column.

6. The anti-vibration platform for high-precision machining of galvanometer mirrors according to claim 1, characterized in that: A telescopic cavity is provided at the top of the hydraulic cavity, the slide groove is connected to the telescopic cavity, the bottom of the telescopic cavity is connected to the top of the piston head, and one side of the slide column is slidably connected to the inner wall of the telescopic cavity.

7. The anti-vibration platform for high-precision machining of galvanometer mirrors according to claim 1, characterized in that: A conduit is provided between the two hydraulic chambers for connecting the two hydraulic chambers.

8. The anti-vibration platform for high-precision machining of galvanometer mirrors according to claim 1, characterized in that: The scanning mechanism comprises a gantry bracket, a mounting bracket and a driving guide rail, wherein the mounting bracket is used to mount a galvanometer, the mounting bracket is slidably connected to the top of the gantry bracket, and the driving guide rail is arranged on the top of the marble platform.

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