Angle displacement adjusting table

Abstract

The utility model belongs to the technical field of optical instrument equipment, and particularly relates to an angle displacement adjusting table which comprises a base, a sliding table and a lead screw mechanism, arc-shaped guide rails are symmetrically arranged on the left side and the right side of the base, and arc-shaped T-shaped grooves matched with the arc-shaped guide rails are formed in the sliding table; the arc-shaped guide rail is matched with the arc-shaped T-shaped groove to achieve sliding connection between the base and the sliding table. A lead screw mechanism is installed between the two arc-shaped guide rails, the lead screw mechanism comprises a lead screw, a threaded sleeve, an adjusting block and a knurled nut, the threaded sleeve is arranged on the lead screw in a sleeving mode, the adjusting block is movably installed on the threaded sleeve, when the threaded sleeve moves, the adjusting block is driven to move horizontally or rotationally, and the top of the adjusting block is fixedly connected with the sliding table. According to the angle displacement adjusting table, an arc-shaped dovetail groove is replaced by the arc-shaped T-shaped groove, the machining difficulty and cost are reduced, the lead screw mechanism is used for driving, and the adjusting precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of optical instruments and equipment, in particular to an angle displacement adjustment platform. Background Art

[0002] In optical experiments and other optical application scenarios, the combined installation of optical elements is a key step in building a specific functional optical system. During the experiment, it may be necessary to adjust the angle or position of certain components in the optical system in real time to obtain the desired experimental results. To this end, people have developed a variety of adjustment mechanisms, such as plane displacement adjustment mechanisms and angle adjustment mechanisms. Among them, the plane displacement adjustment mechanism is used to adjust the relative position of the optical element in a certain plane, while the angle adjustment mechanism is used to adjust the deflection angle of the element. At present, the relevant technology of the plane displacement adjustment mechanism is relatively mature, and the adjustment accuracy is generally high. However, the structure of the angle adjustment mechanism still needs to be improved. In some existing angle adjustment mechanisms, an arc dovetail groove is generally set as a guide structure, but the arc dovetail groove is difficult to process and has high production costs, and it is usually necessary to add a reset spring to realize the reset function, which makes the entire adjustment mechanism larger in size and shorter in stroke. Therefore, the present application aims to design a new angle displacement adjustment table to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and to provide an angle displacement adjustment platform, which can achieve high-precision adjustment of the angle of an optical element.

[0004] The technical solution of the utility model is: an angle displacement adjustment platform, comprising a base, a sliding platform and a screw mechanism, wherein arc guide rails are symmetrically arranged on the left and right sides of the base, and an arc T-shaped slot matching the arc guide rail is arranged on the sliding platform, and the sliding connection between the base and the sliding platform is realized through the cooperation of the arc guide rail and the arc T-shaped slot; a screw mechanism is installed in the middle of the two arc guide rails on the base, and the screw mechanism comprises a screw, a threaded sleeve, an adjustment block and a knurled nut, the threaded sleeve is arranged on the screw, and the adjustment block is movably installed on the threaded sleeve, and when the threaded sleeve moves, it can drive the adjustment block to undergo translational or rotational movement, and the top of the adjustment block is fixedly connected to the sliding platform.

[0005] Furthermore, a protrusion is arranged on the threaded sleeve, and a groove matching with the protrusion is arranged on the adjusting block, so that the protrusion is located in the groove during installation.

[0006] Furthermore, both ends of the screw rod are fixed on the base through bearings, and one end of the screw rod is fixed with a knurled nut, and the screw rod is driven to rotate through the knurled nut.

[0007] Furthermore, an angle scale is provided on one side of the sliding platform and the base.

[0008] Furthermore, the base is arranged on the bottom plate.

[0009] Furthermore, a threaded hole is provided in the arc-shaped T-slot of the sliding platform.

[0010] Furthermore, there are multiple threaded holes, and stabilizing members or locking members are provided in the threaded holes, wherein the stabilizing members are used to ensure the stability of the base and the sliding table when they move relative to each other, and the locking members are used to lock the sliding table at a certain position.

[0011] Furthermore, the stabilizing member adopts a ball screw and the locking member adopts a common screw.

[0012] Furthermore, a plurality of mounting holes are provided on the upper surface of the sliding table; the optical element can be fixed on the sliding table through the corresponding mounting holes, and when the sliding table deflects, the optical element will also deflect synchronously, thereby achieving adjustment of the angle of the optical element.

[0013] Beneficial effects of the utility model: In the angle displacement adjustment table of the utility model, the arc dovetail groove is replaced by an arc T-shaped groove, which reduces the processing difficulty and cost, and uses a screw pair for driving, so the adjustment accuracy will be higher; at the same time, the spring reset structure is abandoned, so that the volume of the overall structure is reduced, and the stroke is relatively increased. (Because it does not need to consider the problem of insufficient elasticity when the spring is reset). BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of embodiment 1 of the utility model;

[0015] Figure 2 It is an explosion diagram of Example 1 of the utility model;

[0016] Figure 3 It is a cross-sectional schematic diagram of the base in Embodiment 1 of the present utility model;

[0017] Figure 4 It is a cross-sectional schematic diagram of the sliding table in Embodiment 1 of the present utility model;

[0018] Figure 5 It is a schematic diagram of the threaded sleeve in Embodiment 1 of the utility model;

[0019] Figure 6 It is a cross-sectional schematic diagram of the adjustment block in Embodiment 1 of the present utility model;

[0020] Figure 7 is a side cross-sectional schematic diagram of Embodiment 1 of the utility model before adjustment;

[0021] Figure 8 is a side cross-sectional schematic diagram of embodiment 1 of the utility model after adjustment;

[0022] In the figure: 1-base plate, 2-base, 21-arc guide rail, 3-sliding table, 31-arc T-slot, 32-mounting hole, 33-threaded hole, 4-screw, 5-knurled nut, 6-threaded sleeve, 61-bump, 7-adjusting block, 71-groove, 8-screw. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with specific embodiments. Methods or functional components not specifically described in the embodiments are all prior art. Example

[0024] like Figure 1-8 As shown, this embodiment is an angle displacement adjustment platform, including a base 2, a sliding platform 3 and a screw mechanism, the base 2 is arranged on a bottom plate 1, and arc guide rails 21 are symmetrically arranged on the left and right sides of the base 2, and an arc T-slot 31 matching the arc guide rail 21 is arranged on the sliding platform 3, and the sliding connection between the base 2 and the sliding platform 3 is realized by the cooperation of the arc guide rail 21 and the arc T-slot 31; a screw mechanism is installed in the middle of the two arc guide rails 21, and the screw mechanism includes a screw rod 4, a threaded sleeve 6, an adjustment block 7 and a knurled nut 5, the threaded sleeve 6 is sleeved on the screw rod 4, and the adjustment block 7 is movably installed on the threaded sleeve 6, and when the threaded sleeve 6 moves, it drives the adjustment block 7 to perform translational or rotational movement, and the top of the adjustment block 7 is fixedly connected to the sliding platform 3.

[0025] In this embodiment, both ends of the screw rod 4 are fixed to the base 2 through bearings, and a knurled nut 5 is fixed to one end of the screw rod 4, and the knurled nut can be used to drive the screw rod 4 to rotate. A protrusion 61 is provided on the threaded sleeve 6, and a groove 71 matching with the protrusion 61 is provided on the adjustment block 7, so that the protrusion 61 is located in the groove 71 during installation.

[0026] In this embodiment, a threaded hole 33 is provided in the arc-shaped T-slot 31 of the sliding table 3. There are multiple threaded holes 33, and a stabilizing member or a locking member is provided in the threaded hole 33, wherein the stabilizing member is used to ensure the stability of the base 2 and the sliding table 3 when they move relative to each other, and the locking member is used to lock the sliding table 3 in a certain position. The locking member and the stabilizing member are both screws 8, wherein the stabilizing member is a ball screw, and the locking member is an ordinary screw.

[0027] In this embodiment, a plurality of mounting holes 32 are provided on the upper surface of the sliding table 3; the optical element can be fixed on the sliding table 3 through the corresponding mounting holes 32, and when the sliding table 3 deflects, the optical element will also deflect synchronously, thereby realizing the adjustment of the angle of the optical element.

[0028] In this embodiment, an angle scale is also provided on one side of the sliding platform 3 and the base 2, and the angle scale can facilitate the user to accurately control the angle.

[0029] The method of using the angle displacement adjustment platform in this embodiment is as follows: the optical element whose angle needs to be adjusted is fixed on the sliding platform 3 through the mounting hole 32, and then the user rotates the knurled nut 5 to make the threaded sleeve 6 move along the direction of the screw rod 4. When the threaded sleeve 6 moves, it will drive the adjustment block 7 to move. The adjustment block 7 and the sliding platform 3 are fixedly connected, so the adjustment block 7 will drive the sliding platform 3 to move. At the same time, because the sliding platform 3 and the base 2 are limited by the arc guide rail 21 and the arc T-slot 31, the movement trajectory of the sliding platform 3 can only be an arc, that is, the sliding platform 3 will inevitably deflect at an angle, and finally the angle of the optical element can be adjusted.

[0030] The above are only some embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have combinations and modifications of the aforementioned technical features. Without departing from the spirit and scope of the present invention, those skilled in the art may improve, modify, or replace the present invention with equivalents, or apply the structure or method of the present invention to other fields to achieve the same effect, which all fall within the scope of protection of the present invention.

Claims

1. An angle displacement adjustment platform, comprising a base, a sliding platform and a screw mechanism, Features: The left and right sides of the base are symmetrically provided with arc guide rails, and the sliding platform is provided with arc T-slots matching the arc guide rails, and the sliding connection between the base and the sliding platform is realized by the cooperation of the arc guide rails and the arc T-slots; a screw mechanism is installed in the middle of the two arc guide rails, and the screw mechanism includes a screw, a threaded sleeve, an adjustment block and a knurled nut, the threaded sleeve is arranged on the screw, and the adjustment block is movably installed on the threaded sleeve, and when the threaded sleeve moves, the adjustment block is driven to perform translational or rotational movement, and the top of the adjustment block is fixedly connected to the sliding platform.

2. The angle displacement adjustment platform according to claim 1, Features: The threaded sleeve is provided with a convex block, and the adjusting block is provided with a groove matched with the convex block, and the convex block is located in the groove during installation.

3. The angle displacement adjustment platform according to claim 1, Features: Both ends of the screw rod are fixed on the base through bearings, and a knurled nut is fixed to one end of the screw rod, and the screw rod is driven to rotate through the knurled nut.

4. The angle displacement adjustment platform according to claim 1, Features: An angle scale is arranged on one side of the sliding platform and the base.

5. The angle displacement adjustment platform according to claim 1, Features: The base is arranged on the bottom plate.

6. The angle displacement adjustment platform according to claim 1, Features: A threaded hole is arranged in the arc-shaped T-shaped groove of the sliding platform.

7. The angle displacement adjustment platform according to claim 6, Features: There are multiple threaded holes, and stabilizing members or locking members are arranged in the threaded holes. The stabilizing members are used to ensure the stability of the base and the sliding platform when they move relative to each other, and the locking members are used to lock the sliding platform at a certain position.

8. The angle displacement adjustment platform according to claim 7, Features: The stabilizing member adopts a ball screw, and the locking member adopts a common screw.

9. The angle displacement adjustment platform according to claim 1, Features: The upper surface of the sliding table is provided with a plurality of mounting holes; the optical element is fixed on the sliding table through the corresponding mounting holes, and when the sliding table is deflected, the optical element is deflected synchronously, thereby realizing angle adjustment.

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