A clamping structure for multi-level wave plate detection

Abstract

The utility model relates to the technical field of wave plate detection, and discloses a clamping structure for multi-stage wave plate detection, comprising a placing table, a placing groove is arranged in the middle of the placing table, a clamping assembly is arranged inside the placing table, the clamping assembly comprises a clamping plate, the clamping plate is arranged inside the placing groove, and a lifting assembly is arranged inside the placing groove. The utility model arranges a placing table, arranges the clamping assembly inside the placing table, and uses the clamping plate in the clamping assembly to clamp the wave plate placed inside the placing groove, so as to avoid shaking of the wave plate during the detection process when the wave plate is not compatible with the placing groove, thereby affecting the accuracy of the wave plate test result.

Description

Technical Field

[0001] The utility model relates to the technical field of wave plate detection, in particular to a clamping structure for multi-stage wave plate detection. Background Art

[0002] Wave plates are optical devices that can produce additional optical path difference between two mutually perpendicular light vibrations. They are usually made of birefringent wafers such as quartz, calcite or mica with precise thickness. Their optical axis is parallel to the wafer surface. Wave plates are divided into multi-order wave plates, glued zero-order wave plates or composite wave plates and true zero-order wave plates according to their structure. Wave plates are divided into various crystal wave plates, polymer wave plates and liquid crystal wave plates according to their materials. Commonly used crystals include mica, calcite and quartz.

[0003] The Chinese utility model application with patent number 202121339837.0 provides a clamping structure for multi-stage wave plate detection. By setting the stage on which the wave plate is placed to be adjustable up and down, the problem of the stage being fixed in the current wave plate detector bracket is solved, so that the distance between the stage and the polarizer and analyzer can be adjusted according to work requirements. Therefore, the scope of use is wider and the performance of the wave plate detector bracket is improved.

[0004] However, during the use of the above-mentioned equipment, it was found that the wave plate was placed directly in the wave plate placement slot. When the wave plate and the placement slot are not compatible, the wave plate is prone to shaking in the placement slot, thereby affecting the accuracy of the wave plate test results. Utility Model Content

[0005] The purpose of the utility model is to provide a clamping structure for multi-stage wave plate detection to solve the problem raised in the above background technology that when the wave plate and the placement groove are not compatible, the wave plate is prone to shaking in the placement groove, thereby affecting the accuracy of the wave plate test result.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping structure for multi-stage wave plate detection, comprising a placing table, a placing groove is arranged in the middle of the placing table, a clamping assembly is arranged inside the placing table, the clamping assembly includes a clamping plate, the clamping plate is arranged inside the placing groove, and a lifting assembly is arranged inside the placing groove.

[0007] Preferably, the clamping assembly includes a worm, which is meshed with a worm wheel. The worm wheel is arranged in the middle of the bidirectional threaded rod. Both ends of the bidirectional threaded rod pass through a movable plate respectively. A connecting rod is fixedly connected to one side of the movable plate, and one end of the connecting rod is connected to the clamping plate.

[0008] Preferably, a movable groove is provided inside the placing table, the movable plate is arranged in the movable groove, one end of the worm is connected to a knob, the knob is arranged in a protective shell, and a cover plate is rotatably connected to the protective shell.

[0009] Preferably, a bracket is provided on one side of the placement table, the top of the bracket is connected to an upper connecting plate, the bottom of the bracket is connected to a lower connecting plate, and a through hole is provided in the middle of the placement groove.

[0010] Preferably, a motor is arranged at the top of the bracket, and a one-way threaded rod is connected to the output end of the motor. The one-way threaded rod is arranged in the lifting groove, and the one-way threaded rod passes through the lifting block, and the lifting block is fixed on one side of the placement table.

[0011] Preferably, the lifting assembly includes a rotating drum, the bottom of which is annularly provided with anti-slip grooves, the rotating drum is rotatably arranged in a lifting groove inside the placing table, the inner wall of the rotating drum is provided with spiral patterns, the interior of the rotating drum is spirally connected to the lifting drum, and the bottom of the lifting drum is provided with spiral patterns.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a placement table, a clamping assembly is provided inside the placement table, and a clamping plate in the clamping assembly is used to clamp the wave plate placed inside the placement slot, thereby preventing the wave plate from shaking during the detection process when the wave plate is not compatible with the placement slot, thereby affecting the accuracy of the wave plate test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a diagram showing the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 The internal structure of the middle bracket is shown in the figure;

[0016] Figure 3 For this utility model Figure 1 Bottom view of the center stand;

[0017] Figure 4 For this utility model Figure 1 The internal structure of the placement slot is shown in the figure;

[0018] Figure 5 For this utility model Figure 1 The internal structure of the center table is shown in the figure.

[0019] In the figure: 1. placement table; 11. protective shell; 111. cover plate; 12. placement slot; 13. through hole; 14. moving slot; 2. upper connecting plate; 3. lower connecting plate; 4. bracket; 41. motor; 42. one-way threaded rod; 43. lifting slot; 44. lifting block; 5. lifting assembly; 51. rotating drum; 52. lifting drum; 53. lifting slot; 6. clamping assembly; 61. worm; 62. knob; 63. two-way threaded rod; 64. moving plate; 65. connecting rod; 66. clamping plate; 67. worm gear. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figure 1-Figure 5 , a clamping structure for multi-stage wave plate detection shown in the figure includes a placement table 1, a placement groove 12 is arranged in the middle of the placement table 1, a clamping assembly 6 is arranged inside the placement table 1, and the clamping assembly 6 includes a clamping plate 66, the clamping plate 66 is arranged inside the placement groove 12, and a lifting assembly 5 is arranged inside the placement groove 12;

[0023] The clamping assembly 6 includes a worm 61, which is meshed with a worm wheel 67. The worm wheel 67 is arranged in the middle of a bidirectional threaded rod 63. Both ends of the bidirectional threaded rod 63 pass through a moving plate 64 respectively. A connecting rod 65 is fixedly connected to one side of the moving plate 64. One end of the connecting rod 65 is connected to a clamping plate 66.

[0024] A moving groove 14 is provided inside the placing table 1, a moving plate 64 is provided in the moving groove 14, one end of the worm 61 is connected to a knob 62, the knob 62 is provided in the protective shell 11, and a cover plate 111 is rotatably connected to the protective shell 11;

[0025] A bracket 4 is provided on one side of the placement table 1, the top of the bracket 4 is connected to the upper connecting plate 2, the bottom of the bracket 4 is connected to the lower connecting plate 3, and a through hole 13 is provided in the middle of the placement groove 12;

[0026] A motor 41 is disposed at the top of the bracket 4, and a one-way threaded rod 42 is connected to the output end of the motor 41. The one-way threaded rod 42 is disposed in a lifting slot 43, and the one-way threaded rod 42 passes through a lifting block 44, and the lifting block 44 is fixed to one side of the placement table 1;

[0027] The lifting assembly 5 includes a rotating drum 51, the bottom of which is provided with anti-slip grooves in an annular shape. The rotating drum 51 is rotatably arranged in a lifting groove 53 inside the placing table 1. The inner wall of the rotating drum 51 is provided with spiral grooves. The interior of the rotating drum 51 is spirally connected to a lifting drum 52, and the bottom of the lifting drum 52 is provided with spiral grooves.

[0028] In this scheme, the wave plate to be tested is placed in the placement slot 12, the polarizer and the analyzer are respectively installed in the upper connecting plate 2 and the lower connecting plate 3, the light source is transmitted through the optical fiber through the polarizer, and the light is output from the analyzer after passing through the wave plate to be tested, and the light is transmitted to the spectrometer through the optical fiber, the wave plate to be tested is rotated, and the phase delay value of the wave plate can be obtained according to the output curve of the spectrometer;

[0029] When in use, the motor 41 is used to drive the one-way threaded rod 42 to rotate, so that the lifting block 44 spirally connected to the one-way threaded rod 42 can move up and down in the lifting slot 43, thereby driving the placement table 1 to move up and down, so as to facilitate the height adjustment of the placement table 1 to meet work requirements;

[0030] When clamping and fixing the wave plate in the placement slot 12, the staff controls the worm 61 to rotate through the knob 62. When the worm 61 rotates, the meshing of the worm wheel 67 and the worm 61 makes the worm wheel 67 rotate under the drive of the worm 61. The worm wheel 67 is arranged in the middle of the two-way threaded rod 63. When the worm wheel 67 rotates, the two-way threaded rod 63 can rotate, thereby driving the moving plates 64 spirally connected at both ends of the two-way threaded rod 63 to move along the moving slot 14, thereby realizing the movement of the moving plates 64 at both ends towards each other, and at the same time controlling the connecting rod 65 on the moving plate 64 to move in the hole on the inner wall of the placement slot 12, so as to control the clamping plate 66 to clamp and fix the wave plate inside the placement slot 12, so as to avoid the movement of the wave plate during detection, resulting in inaccurate detection results.

[0031] The lifting assembly 5 is used to lift the wave plate to prevent the staff from having difficulty in taking it out when the wave plate is inside the placement groove 12. After the wave plate inspection is completed, the staff rotates the rotating drum 51 from the bottom of the placement table 1. The anti-slip grooves on the bottom of the rotating drum 51 can facilitate the staff to control the rotating drum 51. Since the rotating drum 51 is spirally connected to the lifting drum 52, the lifting drum 52 is lifted along the lifting groove 53 while the rotating drum 51 rotates, thereby lifting the wave plate to facilitate the staff to take it out of the placement groove 12.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping structure for multi-stage wave plate detection, characterized in that: include: A placement table (1), wherein a placement groove (12) is arranged in the middle of the placement table (1), a clamping assembly (6) is arranged inside the placement table (1), the clamping assembly (6) comprises a clamping plate (66), the clamping plate (66) is arranged inside the placement groove (12), and a lifting assembly (5) is arranged inside the placement groove (12).

2. A clamping structure for multi-stage wave plate detection according to claim 1, characterized in that: The clamping assembly (6) comprises a worm (61), the worm (61) meshing with a worm wheel (67), the worm wheel (67) being arranged in the middle of a bidirectional threaded rod (63), both ends of the bidirectional threaded rod (63) respectively passing through a movable plate (64), one side of the movable plate (64) being fixedly connected with a connecting rod (65), one end of the connecting rod (65) being connected to a clamping plate (66).

3. A clamping structure for multi-stage wave plate detection according to claim 2, characterized in that: A movable groove (14) is provided inside the placement table (1), the movable plate (64) is arranged in the movable groove (14), one end of the worm (61) is connected to a knob (62), the knob (62) is arranged in a protective shell (11), and a cover plate (111) is rotatably connected to the protective shell (11).

4. The clamping structure for multi-stage wave plate detection according to claim 1, characterized in that: A bracket (4) is provided on one side of the placement platform (1); the top of the bracket (4) is connected to an upper connecting plate (2); the bottom of the bracket (4) is connected to a lower connecting plate (3); and a through hole (13) is provided in the middle of the placement groove (12).

5. A clamping structure for multi-stage wave plate detection according to claim 4, characterized in that: A motor (41) is arranged at the top of the bracket (4); the output end of the motor (41) is connected to a one-way threaded rod (42); the one-way threaded rod (42) is arranged in a lifting groove (43); the one-way threaded rod (42) passes through a lifting block (44); and the lifting block (44) is fixed to one side of the placement table (1).

6. The clamping structure for multi-stage wave plate detection according to claim 1, characterized in that: The lifting assembly (5) comprises a rotating drum (51), the bottom of which is provided with anti-slip grooves in an annular shape, the rotating drum (51) is rotatably arranged in a lifting groove (53) inside the placement platform (1), the inner wall of the rotating drum (51) is provided with spiral grooves, the interior of the rotating drum (51) is spirally connected to a lifting drum (52), and the bottom of the lifting drum (52) is provided with spiral grooves.

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