An adjustable grating mounting device and mounting method for a spectrometer

Abstract

The present invention provides an adjustable grating mounting device for a spectrometer, comprising a bottom plate mounting seat, a first adjusting gasket, a grating mounting seat, a second adjusting gasket, a fastening retaining ring, and an adjusting wrench; the first adjusting gaskets are arranged at both ends of the bottom plate mounting seat, a through hole is provided at the center position of the bottom plate mounting seat, the grating mounting seat is provided with a pull rod end and a mounting end, the pull rod end of the grating mounting seat sequentially passes through the second adjusting gasket, the through hole, and the fastening retaining ring, and the fastening retaining ring is adjusted by the adjusting wrench to fasten the grating mounting seat on the bottom plate mounting seat. The grating mounting device provided by the present invention can adjust the direction of the grating groove marks by rotating the pull rod end of the grating mounting seat, so as to obtain high-quality imaging images. At the same time, the device has a simple structure, can be disassembled, adjusted, and has a low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of optical instruments, and particularly to an adjustable grating mounting device and a mounting method for a spectrometer. Background Art

[0002] For a grating spectrometer, grating imaging has certain requirements for the incident angle range. Therefore, the installation and sealing of the grating have high precision requirements. The existing grating mounting base of the spectrometer is integrated. The integrated grating mounting base has high requirements for the machining precision of the grating mounting surface, and the grating mounting base cannot be disassembled and assembled, making clamping difficult, with high machining difficulty and high machining cost. At the same time, during the trial assembly process of the spectrometer, trial fitting and grinding are often required. For the integrated grating mounting base, the parts cannot be disassembled and assembled, and the grinding difficulty is great.

[0003] Therefore, those skilled in the art are committed to developing an adjustable grating mounting device. Summary of the Invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is the problem of poor imaging quality caused by the non-adjustable grating azimuth angle.

[0005] To achieve the above object, on the one hand, the present invention provides an adjustable grating mounting device for a spectrometer, including a bottom plate mounting base, a first adjusting gasket, a grating mounting base, a second adjusting gasket, a fastening retaining ring, and an adjusting wrench;

[0006] The first adjusting gasket is arranged at both ends of the bottom plate mounting base. A through hole is provided at the center position of the bottom plate mounting base. The grating mounting base has a pull rod end and a mounting end. The pull rod end of the grating mounting base sequentially passes through the second adjusting gasket, the through hole, and the fastening retaining ring, and the fastening retaining ring is adjusted by the adjusting wrench to fasten the grating mounting base on the bottom plate mounting base.

[0007] Further, a grating device is installed at the mounting end of the grating mounting base; a threaded retaining ring is arranged around the grating device.

[0008] Further, the grating device is fixedly sealed at the mounting end with glue; the threaded retaining ring is threadedly connected to the mounting end to cover the grating device for eliminating stray light.

[0009] Further, the mounting device further includes a detachable centering tooling.

[0010] Further, one end of the centering tooling contains a centering target at the top, and the other end can be connected to the bottom plate mounting base through bolts.

[0011] Further, the fastening retaining ring is provided with a groove, and the adjusting wrench is provided with a buckle matching the groove.

[0012] Further, the pull rod end of the grating mounting seat is threadedly connected to the fastening retaining ring.

[0013] On the other hand, the present invention provides a method for installing a grating using the above device, including the following steps:

[0014] S1. Fix the centering tooling at the through hole position of the bottom plate mounting seat through bolts, and fix the bottom plate mounting seat at the grating installation position of the spectrometer through bolts;

[0015] S2. Adjust the height of the bottom plate mounting seat by grinding and trial fitting to adjust the first adjusting gasket, so that the light reflected by the spectrometer mirror is aligned with the target center;

[0016] S3. Remove the centering tooling, pass the pull rod end of the grating mounting seat through the second adjusting gasket, through hole, fastening retaining ring and adjusting wrench in sequence, and make the buckle of the adjusting wrench catch in the groove of the fastening retaining ring;

[0017] S4. Rotate the grating mounting seat to adjust the direction of the mirror groove of the grating device to obtain the best imaging quality of the detector. At this time, rotate the adjusting wrench to tighten the fastening retaining ring to fix the grating mounting seat, and remove the adjusting wrench to complete the installation of the grating.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The grating device installation device provided by the present invention can timely adjust the groove direction of the grating device to obtain a high-quality imaging effect. Secondly, the installation device has a simple structure, is easy to install, and has a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the installation device according to a preferred embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of the centering tooling and the bottom plate mounting seat according to another preferred embodiment of the present invention;

[0022] Figure 3 is Figure 2 a top view of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention is described below with reference to the accompanying drawings of the specification to make its technical content clearer and easier to understand.

[0024] In the drawings, components with the same structure are denoted by the same reference numerals, and components with similar structures or functions are denoted by similar reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the drawings clearer, the thickness of some parts in the drawings is appropriately exaggerated. Embodiment

[0025] As shown in Figure 1, the adjustable grating mounting device for a spectrometer provided by the present invention includes a bottom plate mounting seat 1, a first adjusting gasket 2, a grating mounting seat 3, a second adjusting gasket 4, a fastening retaining ring 5, and an adjusting wrench 6. The first adjusting gasket 2 is arranged at both ends of the bottom plate mounting seat 1. A through hole 7 is provided at the central position of the bottom plate mounting seat 1. The grating mounting seat 3 has a pull rod end and a mounting end. The pull rod end of the grating mounting seat 3 sequentially passes through the second adjusting gasket 4, the through hole 7, and the fastening retaining ring 5, and the fastening retaining ring 5 is adjusted by the adjusting wrench 6 to fasten the grating mounting seat 3 on the bottom plate mounting seat 1. The fastening retaining ring 5 is provided with a groove 51, and the adjusting wrench 6 is provided with a buckle 61 matching the groove 51. The pull rod end of the grating mounting seat 3 is threadedly connected to the fastening retaining ring 5. The mounting end of the grating mounting seat 3 is provided with a grating device 8 and a threaded retaining ring 9. The grating device 8 is fixedly sealed at the mounting end of the grating mounting seat 3 by glue, and the threaded retaining ring 9 is threadedly connected to the mounting end to cover the grating device 8 for eliminating stray light.

[0026] As Figure 3 shown, the mounting device further includes a detachable centering tooling 10 for determining the mounting height of the bottom plate mounting seat 1. One end of the centering tooling 10 is provided with a centering target 11 at the top, and the other end is connected to the bottom plate mounting seat 1 by bolts. Embodiment

[0027] A method for mounting a grating assembly using the above mounting device includes the following steps:

[0028] S1. Fix the centering tooling 10 at the position of the through hole 7 of the bottom plate mounting seat 1 by bolts, and fix the bottom plate mounting seat 1 at the grating mounting position of the spectrometer by bolts.

[0029] S2. Adjust the height of the bottom plate mounting seat 1 by grinding and trial fitting to adjust the first adjusting gasket 2 so that the light reflected by the spectrometer mirror is aligned with the centering target 11.

[0030] S3. Remove the centering tooling 10, pass the pull rod end of the grating mounting seat 3 through the second adjusting gasket 4, the through hole 7, the fastening retaining ring 5 and the adjusting wrench 6 in sequence, and make the buckle 61 of the adjusting wrench 6 catch in the groove 51 of the fastening retaining ring 5.

[0031] S4. Rotate the grating mounting seat 3 to adjust the direction of the mirror groove of the grating device 8 to make the imaging quality of the detector the best. At this time, rotate the adjusting wrench 6 to tighten the fastening retaining ring 5 to fix the grating mounting seat 3, and remove the adjusting wrench 6 to complete the installation of the grating.

[0032] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field according to the concept of the present invention through logical analysis, reasoning, or limited experiments on the basis of the prior art shall fall within the protection scope determined by the claims.

Claims

1. An adjustable grating mounting device for a spectrometer, characterized in that, It includes a bottom plate mounting seat, a first adjusting gasket, a grating mounting seat, a second adjusting gasket, a fastening retaining ring, and an adjusting wrench; The first adjusting gasket is arranged at both ends of the bottom plate mounting seat. A through hole is provided at the center position of the bottom plate mounting seat. The grating mounting seat has a pull rod end and a mounting end. The pull rod end of the grating mounting seat sequentially passes through the second adjusting gasket, the through hole, and the fastening retaining ring. The fastening retaining ring is adjusted by the adjusting wrench to fasten the grating mounting seat on the bottom plate mounting seat; the mounting end of the grating mounting seat is provided with a grating device; a threaded retaining ring is arranged around the grating device; the mounting device further includes a detachable centering tooling; one end of the centering tooling contains a centering target at the top, and the other end can be connected to the bottom plate mounting seat through bolts; the grating device is fixedly sealed at the mounting end with glue; the threaded retaining ring is threadedly connected to the mounting end to cover the grating device for eliminating stray light; The adjustable grating mounting device for a spectrometer includes the following steps: S1. Fix the centering tooling at the through hole position of the bottom plate mounting seat through bolts, and fix the bottom plate mounting seat at the grating mounting position of the spectrometer through bolts; S2. Adjust the height of the bottom plate mounting seat by grinding and trial fitting to adjust the first adjusting gasket so that the light reflected by the spectrometer mirror is aligned with the center of the target; S3. Remove the centering tooling, and sequentially pass the pull rod end of the grating mounting seat through the second adjusting gasket, the through hole, the fastening retaining ring and the adjusting wrench, and make the buckle of the adjusting wrench catch in the groove of the fastening retaining ring; S4. Rotate the grating mounting seat to adjust the direction of the mirror groove of the grating device to make the imaging quality of the detector the best. At this time, rotate the adjusting wrench to tighten the fastening retaining ring to fix the grating mounting seat, and remove the adjusting wrench to complete the installation of the grating.

2. The installation device according to claim 1, characterized in that, The fastening retaining ring is provided with a groove, and the adjusting wrench is provided with a buckle matching the groove.

3. The mounting device according to claim 1, characterized in that, The pull rod end of the grating mounting seat is threadedly connected to the fastening retaining ring.

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