Micro-hemispherical harmonic oscillator clamping tool

Abstract

The center of the top face of the micro-hemispherical harmonic oscillator is sunken downwards to form an anchor column with an anchor column cavity, the micro-hemispherical harmonic oscillator clamping tool comprises an installation assembly, a cross beam and a positioning nail, the installation assembly comprises a base and a copper plane device, the lower end of the copper plane device is detachably connected to the base, and the cross beam is arranged on the base. The upper end of the positioning nail is provided with a positioning hole matched with an anchor column of the micro-hemispherical harmonic oscillator, the lower portion of the positioning nail penetrates through the cross beam, then extends into an anchor column cavity of the micro-hemispherical harmonic oscillator and abuts against the bottom wall of the anchor column cavity, the upper portion of the positioning nail is in threaded connection with the cross beam, and the lower portion of the positioning nail is in threaded connection with the cross beam. An adjusting mechanism used for adjusting the coaxiality of an anchor column and a positioning hole of the hemispherical harmonic oscillator is arranged between the cross beam and the installation assembly, the clamping tool can avoid damage to a micro hemisphere in the process of technological processing and transferring, and materials and labor cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of inertial navigation device preparation, in particular to a micro-hemispherical resonator clamping tool. Background Art

[0002] The hemispherical resonator gyroscope is a new type of solid-state navigation gyroscope for measuring precession angle. Its core component is a hemispherical resonator made of fused quartz. A micro-hemispherical resonator with inertial navigation test function needs to go through a series of complicated processes such as hot forming, ultrasonic cleaning, polishing, heat treatment and morphology testing. For example, in the polishing stage, due to the formation of a surface sub-damage layer on the micro-hemispherical surface after grinding, it is necessary to use a professional polishing liquid to chemically polish the lip edge of the micro-hemispherical circumference area to remove the sub-damage layer; in the initial hot forming stage of the micro-hemispherical, due to the rapid thermal deformation of the fused quartz, a certain degree of stress is accumulated inside, and the micro-hemispherical needs to be tested for quality factor (Q value) in the later stage. During the Q value test, the excitation energy is rapidly dissipated at the stress concentration point, so the measured quality factor drops significantly; before assembling the micro-hemispherical, the inner and outer surfaces of the micro-hemispherical need to be metal-plated to give it conductivity; between each process, a special cleaning process is required to thoroughly clean the micro-hemispherical to ensure that its quality factor will not be affected by dirt and decrease.

[0003] The above-mentioned processes require special clamping tools to hold the micro-hemisphere firmly, safely, and conveniently, ensuring the integrity of the micro-hemisphere during the process without causing damage to the micro-hemisphere itself. In addition, during the transportation of the micro-hemisphere between processes, the anchor column position of the hemisphere also needs to be firmly fixed by a clamping tool to avoid damage.

[0004] Since the micro-hemispherical resonator is made of fused quartz material, it is brittle, thin-walled, and fragile. At the same time, traditional clamping methods such as tweezers can easily cause surface defects in the micro-hemispherical, and it is difficult to buy clamping tools compatible with the micro-hemispherical on the market. Therefore, the hemisphere is often scrapped due to improper human operation or poor clamping methods, which greatly increases material and processing costs. Summary of the invention

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a micro-hemispherical resonator clamping tooling, which can avoid damage to the micro-hemispherical resonator during process processing and transportation, and save material and labor costs.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A micro-hemispherical resonator clamping tool, wherein the center of the top surface of the micro-hemispherical resonator is concave downward to form an anchor column with an anchor column cavity, comprising a mounting assembly, a crossbeam and a positioning pin,

[0008] The mounting assembly includes a base and a copper plane, wherein the lower end of the copper plane is detachably connected to the base, and the upper end of the copper plane is provided with a positioning hole that matches the anchor column of the micro-hemispherical resonator.

[0009] The lower part of the positioning pin passes through the crossbeam and then extends into the anchor column cavity of the micro-hemispherical resonator, and abuts against the bottom wall of the anchor column cavity. The upper part of the positioning pin is threadedly connected to the crossbeam.

[0010] An adjusting mechanism for adjusting the coaxiality of the anchor column and the positioning hole of the hemispherical resonator is arranged between the crossbeam and the mounting assembly.

[0011] Optionally, the adjustment mechanism includes two sets of adjustment components, each of which includes a guide column and an adjustment screw.

[0012] The guide column is fixed on the base and arranged parallel to the axial direction of the positioning hole. The guide columns of the two sets of adjustment assemblies are arranged on both sides of the copper plane and abut against the copper plane. The threaded end of the adjusting screw passes through the crossbeam and is connected to the corresponding guide column thread to fasten the crossbeam and the guide column together.

[0013] Optionally, a through hole is formed on the crossbeam for the threaded end of the adjusting screw to pass through, and a first threaded hole matching the threaded end of the adjusting screw is formed on the upper end surface of the guide column at a position corresponding to the through hole.

[0014] Optionally, a limiting ring coaxially arranged with the positioning hole is provided on the outer circumference of the copper plane, and the limiting ring abuts between the two guide pillars.

[0015] Optionally, the wall surface of the guide column facing the limiting ring is a concave arc surface that matches the outer circumference of the limiting ring.

[0016] Optionally, the concave arc surface extends along the axial direction of the guide column to penetrate the upper and lower end surfaces of the guide column.

[0017] Optionally, the bottom surface of the copper plane device has a downwardly extending mounting post, the upper surface of the base is provided with a mounting hole that cooperates with the mounting post, and the mounting post is inserted into the mounting hole to detachably connect the base and the copper plane device.

[0018] Optionally, a limiting ring is provided on the outer circumference of the copper plane and is coaxially arranged with the positioning hole. When the mounting column is inserted into the mounting hole, the lower end surface of the limiting ring abuts against the upper surface of the base.

[0019] Optionally, the upper portion of the positioning pin has an external thread, and the crossbeam is provided with a second threaded hole that matches the external thread, and the upper portion of the positioning pin passes through the second threaded hole and is threadedly connected to the crossbeam.

[0020] Optionally, the lower part of the positioning pin is a pin that cooperates with the anchor column cavity of the micro-hemispherical resonator, and the pin extends into the anchor column cavity of the micro-hemispherical resonator and abuts against the bottom wall of the anchor column cavity.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The utility model discloses a micro-hemispherical resonator clamping tool, comprising a mounting assembly, a crossbeam and a positioning pin, wherein the mounting assembly comprises a base and a copper plane device, wherein the lower end of the copper plane device is detachably connected to the base, and a positioning hole matched with an anchor column of the micro-hemispherical resonator is opened at the upper end thereof, and the lower part of the positioning pin passes through the crossbeam and extends into the anchor column cavity of the micro-hemispherical resonator, and abuts against the bottom wall of the anchor column cavity, and the upper part of the positioning pin is threadedly connected to the crossbeam, thereby firmly limiting the micro-hemispherical resonator between the crossbeam and the mounting assembly, ensuring that the micro-hemispherical resonator is firmly, safely, non-injurious and conveniently clamped, ensuring the integrity of the micro-hemispherical resonator during the process or transportation, and not causing damage to the micro-hemispherical resonator itself.

[0023] In addition, the utility model provides an adjustment mechanism between the crossbeam and the mounting assembly for adjusting the coaxiality of the anchor column and the positioning hole of the hemispherical resonator, so as to ensure that the hemispherical resonator maintains coaxiality with the center of the test mechanism during various performance tests, thereby reducing the influence of clamping on the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the structural diagram of the micro-hemispherical resonator;

[0025] Figure 2 This is a schematic structural diagram of a micro-hemispherical resonator clamping tooling according to an embodiment of the utility model;

[0026] Figure 3 It is a schematic diagram of the exploded structure of the micro-hemispherical resonator clamping tooling of the embodiment of the utility model;

[0027] Figure 4 It is a schematic cross-sectional structure diagram of a micro-hemispherical resonator clamping tooling according to an embodiment of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the crossbeam in the embodiment of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the adjusting screw in the embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the positioning pin in the embodiment of the utility model;

[0031] Figure 8 It is a structural schematic diagram of the base in the embodiment of the utility model;

[0032] Fig. 9 It is a schematic diagram of the structure of the copper plane device in the embodiment of the utility model.

[0033] Legend: 1. Positioning pin; 11. Ejector pin; 2. Adjusting screw; 3. Crossbeam; 31. Through hole; 32. Second threaded hole; 4. Micro-hemispherical resonator; 41. Anchor column; 42. Anchor column cavity; 5. Copper plane; 51. Positioning hole; 52. Limiting ring; 53. Mounting column; 6. Base; 61. Upper surface; 62. Guide column; 63. First threaded hole; 64. Mounting hole; 65. Concave arc surface. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0035] like Figure 1 As shown, the micro-hemispherical resonator 4 clamped by the present invention is a hemispherical shell structure, and the center of the top surface thereof is concave downward to form an anchor column 41 with an anchor column cavity 42.

[0036] like Figure 2-Figure 9 As shown, this embodiment provides a micro-hemispherical resonator clamping tool with accurate positioning and convenient operation, including a mounting component, a crossbeam 3 and a positioning pin 1.

[0037] The mounting assembly includes a base 6 and a copper plane 5. The lower end of the copper plane 5 is detachably connected to the base 6, and the upper end of the copper plane 5 is provided with a positioning hole 51 that matches the anchor column 41 of the micro-hemispherical resonator 4.

[0038] The lower part of the positioning pin 1 passes through the cross beam 3 and then extends into the anchor column cavity 42 of the micro-hemispherical resonator 4, and abuts against the bottom wall of the anchor column cavity 42. The upper part of the positioning pin 1 is threadedly connected to the cross beam 3.

[0039] An adjusting mechanism for adjusting the coaxiality between the anchor column 41 of the hemispherical resonator 4 and the positioning hole 51 is provided between the crossbeam 3 and the mounting assembly.

[0040] Thus, the anchor column 41 of the micro-hemispherical resonator 4 is inserted into the positioning hole 51 of the copper plane device 5, and then the lower part of the positioning pin 1 passes through the cross beam 3 and extends into the anchor column cavity 42 of the micro-hemispherical resonator 4. By rotating the positioning pin 1, the bottom end of the positioning pin 1 abuts against the bottom wall of the anchor column cavity 42, and the upper part of the positioning pin 1 is threadedly connected to the cross beam 3, so that the micro-hemispherical resonator 4 can be firmly limited between the cross beam 3 and the installation component, ensuring that the micro-hemispherical resonator is firmly, safely, non-damaged and conveniently clamped, ensuring the integrity of the micro-hemispherical resonator during the process or transportation, and not causing damage to the micro-hemispherical resonator itself.

[0041] In addition, the utility model provides an adjustment mechanism between the crossbeam 3 and the mounting assembly for adjusting the coaxiality of the anchor column 41 of the hemispherical resonator 4 and the positioning hole 51 of the copper plane 5, so as to ensure that the hemispherical resonator maintains coaxiality with the center of the test mechanism during various performance tests, thereby reducing the influence of clamping on the test results.

[0042] In this embodiment, the adjustment mechanism includes two sets of adjustment components, and the adjustment components include a guide column 62 and an adjustment screw 2.

[0043] The guide column 62 is fixed on the base 6 and is arranged parallel to the axial direction of the positioning hole 51. The guide columns 62 of the two sets of adjustment components are arranged on both sides of the copper plane 5 and abut against the copper plane 5. The threaded end of the adjustment screw 2 passes through the cross beam 3 and is threadedly connected to the corresponding guide column 62 to fasten the cross beam 3 and the guide column 62 together.

[0044] Since the micro-hemisphericity is prone to shaking during assembly, resulting in an inclination error after fixation, the micro-hemisphericity inclination is corrected using adjusting screws 2. The assembly inclination can be adjusted by adjusting the screw-in depth of the screws on both sides to keep the micro-hemisphericity in a vertical position.

[0045] In this embodiment, a through hole 31 is formed on the crossbeam 3 for the threaded end of the adjusting screw 2 to pass through, and a first threaded hole 63 matching with the threaded end of the adjusting screw 2 is formed on the upper end surface of the guide column 62 at a position corresponding to the through hole 31 .

[0046] In this embodiment, in order to improve the limiting effect of the two guide pillars 62 on the copper plane device 5 , the outer circumference of the copper plane device 5 has a limiting ring 52 coaxially arranged with the positioning hole 51 , and the limiting ring 52 abuts between the two guide pillars 62 .

[0047] In this embodiment, the wall surface of the guide column 62 facing the limiting ring 52 is a concave arc surface 65 that matches the outer circumference of the limiting ring 52 .

[0048] In this embodiment, in order to facilitate the assembly of the copper plane 5 and the base 6 , the concave arc surface 65 extends along the axial direction of the guide column 62 to penetrate the upper and lower end surfaces of the guide column 62 .

[0049] Furthermore, the two guide posts 62 are respectively inscribed in the outer contour of the upper surface 61 of the base 6 and are symmetrically distributed about the radial center plane of the copper plane 5 , and the concave arc surface 65 is symmetrical about the radial center plane of the copper plane 5 .

[0050] In this embodiment, the bottom surface of the copper plane 5 has a downwardly extending mounting post 53, and the upper surface 61 of the base 6 has a mounting hole 64 that cooperates with the mounting post 53. The mounting post 53 is inserted into the mounting hole 64 to detachably connect the base 6 and the copper plane 5.

[0051] In this embodiment, in order to further improve the limiting effect of the two guide pillars 62 on the copper plane device 5 , when the mounting pillar 53 is inserted into the mounting hole 64 , the lower end surface of the limiting ring 52 abuts against the upper surface 61 of the base 6 .

[0052] In this embodiment, the upper portion of the positioning pin 1 has an external thread, and the crossbeam 3 is provided with a second threaded hole 32 that matches the external thread. The upper portion of the positioning pin 1 passes through the second threaded hole 32 and is threadedly connected to the crossbeam 3 .

[0053] In this embodiment, in order to minimize the damage to the micro-hemispherical resonator 4 caused by clamping, the lower part of the positioning pin 1 is a pin 11 that cooperates with the anchor column cavity 42 of the micro-hemispherical resonator 4. The pin 11 extends into the anchor column cavity 42 of the micro-hemispherical resonator 4 and abuts against the bottom wall of the anchor column cavity 42.

[0054] The process of installing the micro-hemispherical resonator by the clamping tool of this embodiment is as follows:

[0055] [Step 1] The concave arc surface 65 cooperates with the outer edge of the limiting ring 52 of the copper plane 5. After installation, the concave arc surface 65 can be just tangent to the copper plane 5 and firmly fix it in the installation hole 64; the anchor 41 of the micro-hemisphere is placed in the positioning hole 51, and indirectly realizes the limiting function through cooperation with the copper plane 5, the limiting ring 52 and the concave arc surface 65. The copper plane 5 is composed of three parts, which are the positioning hole 51, the limiting ring 52 and the installation column 53 from top to bottom.

[0056] [Step 2] After the micro-hemispherical resonator 4 is placed in the positioning hole 51 of the copper plane, the through hole 31 and the second threaded hole 32 of the beam 3 are respectively aligned with the first threaded hole in the cylinder and the anchor column position of the micro-hemispherical resonator 4, and then the beam 3 is connected and fixed by the adjusting screw 2 and the positioning pin 1.

[0057] [Step 3] The positioning pin 1 in step 2 fixes the micro-hemispherical resonator 4, and the positioning pin 1 enters the hemispherical anchor column cavity 42 from the second threaded hole 32 to press the bottom 41 of the anchor column to limit the fixation, while avoiding excessive pressure to damage the micro-hemispherical anchor column. The positioning hole 51 fixes the micro-hemispherical anchor column, and then the ejector pin 11 of the positioning pin 1 is used to press and further fix it.

[0058] [Step 4] The crossbeam 3 is a long cube with three holes evenly spaced apart. The through holes 31 on both sides cooperate with the adjusting screws 2 (the adjusting screws 2 are specifically hexagon socket screws) to connect the crossbeam 3 and the base 6.

[0059] [Step 5] The connection between the cross beam 3 and the base 6 as described in step 4 is achieved by passing two hexagon socket screws through the through hole 31 and then connecting the first threaded hole 63.

[0060] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A micro-hemispherical resonator clamping tool, wherein the center of the top surface of the micro-hemispherical resonator (4) is recessed downward to form an anchor column (41) having an anchor column cavity (42), characterized in that: It includes a mounting assembly, a crossbeam (3) and a positioning pin (1). The mounting assembly comprises a base (6) and a copper plane (5); the lower end of the copper plane (5) is detachably connected to the base (6), and the upper end of the copper plane is provided with a positioning hole (51) that cooperates with an anchor column (41) of the micro-hemispherical resonator (4). The lower portion of the positioning pin (1) passes through the crossbeam (3) and then extends into the anchor column cavity (42) of the micro-hemispherical resonator (4), and abuts against the bottom wall of the anchor column cavity (42). The upper portion of the positioning pin (1) is threadedly connected to the crossbeam (3). An adjustment mechanism for adjusting the coaxiality of an anchor column (41) and a positioning hole (51) of the hemispherical resonator (4) is provided between the crossbeam (3) and the mounting assembly.

2. The micro-hemispherical resonator clamping tool according to claim 1 is characterized in that: The adjustment mechanism comprises two sets of adjustment components, each of which comprises a guide column (62) and an adjustment screw (2). The guide column (62) is fixed on the base (6) and arranged parallel to the axial direction of the positioning hole (51). The guide columns (62) of the two adjustment assemblies are arranged on both sides of the copper plane device (5) and abut against the copper plane device (5). The threaded end of the adjustment screw (2) passes through the crossbeam (3) and is threadedly connected to the corresponding guide column (62) to fasten the crossbeam (3) and the guide column (62) together.

3. The micro-hemispherical resonator clamping tool according to claim 2 is characterized in that: The crossbeam (3) is provided with a through hole (31) for the threaded end of the adjusting screw (2) to pass through, and the upper end surface of the guide column (62) is provided with a first threaded hole (63) matching with the threaded end of the adjusting screw (2) at a position corresponding to the through hole (31).

4. The micro-hemispherical resonator clamping tool according to claim 2 is characterized in that: The outer circumference of the copper plane device (5) is provided with a limiting ring (52) coaxially arranged with the positioning hole (51), and the limiting ring (52) abuts between the two guide pillars (62).

5. The micro-hemispherical resonator clamping tool according to claim 4, characterized in that: The wall surface of the guide column (62) facing the limiting ring (52) is a concave arc surface (65) that matches the outer circumference of the limiting ring (52).

6. The micro-hemispherical resonator clamping tool according to claim 5, characterized in that: The concave arc surface (65) extends along the axial direction of the guide column (62) to penetrate the upper and lower end surfaces of the guide column (62).

7. The micro-hemispherical resonator clamping tool according to any one of claims 1 to 6, characterized in that: The bottom surface of the copper plane device (5) has a downwardly extending mounting post (53), and the upper surface (61) of the base (6) is provided with a mounting hole (64) that cooperates with the mounting post (53). The mounting post (53) is inserted into the mounting hole (64) to detachably connect the base (6) and the copper plane device (5).

8. The micro-hemispherical resonator clamping tool according to claim 7, characterized in that: The outer circumference of the copper plane device (5) is provided with a limiting ring (52) coaxially arranged with the positioning hole (51); when the mounting column (53) is inserted into the mounting hole (64), the lower end surface of the limiting ring (52) abuts against the upper surface (61) of the base (6).

9. The micro-hemispherical resonator clamping tool according to any one of claims 1 to 6, characterized in that: The upper portion of the positioning pin (1) has an external thread, the crossbeam (3) is provided with a second threaded hole (32) that matches the external thread, and the upper portion of the positioning pin (1) passes through the second threaded hole (32) and is threadedly connected to the crossbeam (3).

10. The micro-hemispherical resonator clamping tool according to claim 9, characterized in that: The lower part of the positioning pin (1) is a pin (11) that cooperates with the anchor column cavity (42) of the micro-hemispherical resonator (4); the pin (11) extends into the anchor column cavity (42) of the micro-hemispherical resonator (4) and abuts against the bottom wall of the anchor column cavity (42).

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