Angle adjusting mechanism of spherical lead screw
By designing the angle adjustment mechanism of the spherical screw, the anti-slip sleeve rotation drives the movement of the screw and the ball head, achieving a smooth adjustment of the angle of the rotating upper plate, solving the problem of unstable adjustment of the optical path angle in the field of vacuum optics.
Patent Information
- Application Number
- CN202420675014.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-04-03
AI Technical Summary
In the field of vacuum optics, the optical path angle adjustment is affected by the air pressure changes caused by vacuum extraction inside the cavity or pipeline, and the existing adjustment devices have large installation space, are troublesome and are unstable.
An angle adjustment mechanism for a spherical screw is designed, including a fixed base plate, a rotating upper plate, a support block, a fixed block, a screw body, a ball head, a semicircular guide groove and a limiting plate. The rotation of the anti-slip sleeve drives the screw body and the ball head to move, realizing the angle adjustment of the rotating upper plate.
The smooth adjustment of the rotating upper plate angle is achieved, solving the problems of large installation space, troublesome and unstable adjustment of the existing device.
Smart Images
Figure CN222812989U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum cavity design, in particular to an angle adjustment mechanism for a spherical screw rod. Background Art
[0002] In scenarios involving optical path angle adjustment in the field of vacuum optics, the angle of the cavity or component is difficult to adjust due to the vacuum inside the cavity or pipeline and the atmospheric pressure, and external force is required to assist in adjusting the optical path angle.
[0003] However, the existing adjustment device requires more space for installation, is more troublesome to install, and the adjustment process is not smooth after installation. Therefore, those skilled in the art provide an angle adjustment mechanism of a ball screw to solve the problems raised in the above background technology. Utility Model Content
[0004] The utility model aims to provide an angle adjustment mechanism for a ball screw to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An angle adjustment mechanism for a ball screw comprises a fixed bottom plate and a rotating upper plate, wherein the top of the fixed bottom plate is provided with an adjustment mechanism;
[0007] The adjusting mechanism comprises a supporting block and a fixed block, the bottom of the supporting block is movably connected to the top of the fixed bottom plate, the top of the fixed block is fixedly connected to the bottom of the rotating upper plate, the inner cavity of the supporting block is movably connected to a screw body, the left side of the screw body is fixedly connected to a ball head, the inner cavity of the fixed block is provided with a semicircular guide groove, and the inner cavity of the semicircular guide groove is movably connected to the surface of the ball head.
[0008] As a further solution of the utility model: the front side and the back side of the inner cavity of the semicircular guide groove are fixedly connected to a limit plate, and one side of the limit plate is movably connected to the surface of the ball head.
[0009] As a further solution of the utility model: the inner cavity of the support block is fixedly connected with a screw sleeve, and the inner cavity of the screw sleeve is threadedly connected to the surface of the screw rod body.
[0010] As a further solution of the utility model: an anti-slip sleeve is fixedly connected to the surface of the screw rod body, and the material of the anti-slip sleeve is rubber.
[0011] As a further solution of the utility model: the front side and the back side of the inner cavity of the support block are both threadedly connected with bolts, and the surface of the bolts is threadedly connected to the inner cavity of the fixed base plate.
[0012] As a further solution of the utility model: a supporting mechanism is installed at the bottom of the rotating upper plate, and the supporting mechanism includes a bearing seat and a supporting shaft. The bottom of the bearing seat is fixedly connected to the top of the fixed bottom plate, the top of the supporting shaft is fixedly connected to the bottom of the rotating upper plate, the inner cavity of the bearing seat is fixedly connected to an angular contact ball bearing, the top of the bearing seat is fixedly connected to a pressure cover, and the surface of the support shaft is movably connected to the inner cavity of the angular contact ball bearing.
[0013] As a further solution of the utility model: the bottom of the support shaft is threadedly connected with a nut, and the surface of the nut is movably connected to the inner cavity of the fixed bottom plate.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The utility model rotates by holding the anti-slip sleeve, and the rotation of the anti-slip sleeve drives the screw body to rotate. When the screw body rotates, it will move inside the screw sleeve, and the movement of the screw body drives the ball head to move. When the ball head moves, it will push the fixed block to move, so that the angle of the rotating upper plate can be adjusted smoothly, which solves the problem that the existing adjustment device requires more space for installation, is more troublesome to install, and is not stable during the adjustment process after installation.
[0016] 2. The utility model limits the movement of the ball head by setting a limit plate, thereby preventing the ball head from escaping from the interior of the semicircular guide groove during movement. By setting the screw sleeve, the screw body can move inside the screw sleeve during rotation, thereby driving the ball head to move. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of an angle adjustment mechanism of a spherical screw;
[0018] Figure 2 A schematic diagram of the connection of a bearing seat structure in an angle adjustment mechanism of a ball screw;
[0019] Figure 3 A cross-sectional view of a bearing seat structure in an angle adjustment mechanism of a ball screw;
[0020] Figure 4 The figure is a connection diagram of a support block structure in an angle adjustment mechanism of a spherical screw.
[0021] In the figure: 1. fixed bottom plate; 2. rotating upper plate; 3. adjusting mechanism; 301. supporting block; 302. bolt; 303. limit plate; 304. ball head; 305. semicircular guide groove; 306. fixing block; 307. screw sleeve; 308. anti-slip sleeve; 309. screw rod body; 4. supporting mechanism; 401. bearing seat; 402. nut; 403. angular contact ball bearing; 404. supporting shaft; 405. pressure cover. DETAILED DESCRIPTION
[0022] 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.
[0023] See also Figure 1-4 , an angle adjustment mechanism of a ball screw, comprising a fixed bottom plate 1 and a rotating upper plate 2, an adjustment mechanism 3 is installed on the top of the fixed bottom plate 1;
[0024] The adjusting mechanism 3 includes a supporting block 301 and a fixed block 306. The bottom of the supporting block 301 is movably connected to the top of the fixed bottom plate 1. The top of the fixed block 306 is fixedly connected to the bottom of the rotating upper plate 2. The inner cavity of the supporting block 301 is movably connected to a screw body 309. The left side of the screw body 309 is fixedly connected to a ball head 304. The inner cavity of the fixed block 306 is provided with a semicircular guide groove 305. The inner cavity of the semicircular guide groove 305 is movably connected to the surface of the ball head 304.
[0025] Specifically, the front side and the back side of the inner cavity of the semicircular guide groove 305 are fixedly connected to the limiting plate 303 , and one side of the limiting plate 303 is movably connected to the surface of the ball head 304 .
[0026] Through the above technical solution, the setting of the limiting plate 303 can limit the movement of the ball head 304, thereby preventing the ball head 304 from escaping from the inside of the semicircular guide groove 305 during the movement.
[0027] Specifically, the inner cavity of the support block 301 is fixedly connected with a screw sleeve 307 , and the inner cavity of the screw sleeve 307 is threadedly connected to the surface of the screw body 309 .
[0028] Through the above technical solution, by setting the screw sleeve 307, the screw rod body 309 can move inside the screw sleeve 307 during the rotation process, thereby driving the ball head 304 to move.
[0029] Specifically, the surface of the screw body 309 is fixedly connected with an anti-slip sleeve 308 , and the material of the anti-slip sleeve 308 is rubber.
[0030] Through the above technical solution, by setting the anti-slip sleeve 308, the friction force applied to the operator's hand when in contact with the screw body 309 is increased, thereby preventing the hand from detaching from the surface of the screw body 309 during rotation.
[0031] Specifically, the front side and the back side of the inner cavity of the support block 301 are both threadedly connected with bolts 302 , and the surface of the bolts 302 is threadedly connected to the inner cavity of the fixed base plate 1 .
[0032] Through the above technical solution, the position between the support block 301 and the fixed base plate 1 is fixed by setting the bolts 302, thereby preventing the support block 301 from shifting during operation.
[0033] Specifically, a supporting mechanism 4 is installed at the bottom of the rotating upper plate 2, and the supporting mechanism 4 includes a bearing seat 401 and a supporting shaft 404. The bottom of the bearing seat 401 is fixedly connected to the top of the fixed bottom plate 1, and the top of the supporting shaft 404 is fixedly connected to the bottom of the rotating upper plate 2. An angular contact ball bearing 403 is fixedly connected to the inner cavity of the bearing seat 401, and a pressure cover 405 is fixedly connected to the top of the bearing seat 401. The surface of the supporting shaft 404 is movably connected to the inner cavity of the angular contact ball bearing 403.
[0034] Through the above technical solution, the position of the angular contact ball bearing 403 is fixed by the setting of the bearing seat 401, so that the friction force on the support shaft 404 during the rotation process is reduced by the setting of the angular contact ball bearing 403, so that it can rotate stably.
[0035] Specifically, the bottom of the support shaft 404 is threadedly connected with a nut 402 , and the surface of the nut 402 is movably connected to the inner cavity of the fixed base plate 1 .
[0036] Through the above technical solution, the position of the support shaft 404 is fixed by the setting of the nut 402, thereby preventing the support shaft 404 from being separated from the inner cavity of the fixed base plate 1.
[0037] The working principle of the utility model is: first, by moving the rotating upper plate 2 downward, the movement of the rotating upper plate 2 drives the support shaft 404 to move until the support shaft 404 enters the interior of the angular contact ball bearing 403, and then the position of the support shaft 404 is fixed by rotating the nut 402, and then the anti-slip sleeve 308 is held and rotated, and the rotation of the anti-slip sleeve 308 drives the screw rod body 309 to rotate, and when the screw rod body 309 rotates, it will move inside the screw sleeve 307, and the movement of the screw rod body 309 drives the ball head 304 to move, and when the ball head 304 moves, it will push the fixed block 306 to move, and the movement of the fixed block 306 drives the rotating upper plate 2 to move, so as to complete the adjustment of the angle of the rotating upper plate 2.
[0038] What is described above 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 ball screw angle adjustment mechanism, comprising a fixed bottom plate (1) and a rotating upper plate (2), characterized in that: An adjustment mechanism (3) is installed on the top of the fixed base plate (1); The adjusting mechanism (3) comprises a supporting block (301) and a fixed block (306); the bottom of the supporting block (301) is movably connected to the top of the fixed bottom plate (1); the top of the fixed block (306) is fixedly connected to the bottom of the rotating upper plate (2); the inner cavity of the supporting block (301) is movably connected to a screw body (309); the left side of the screw body (309) is fixedly connected to a ball head (304); the inner cavity of the fixed block (306) is provided with a semicircular guide groove (305); the inner cavity of the semicircular guide groove (305) is movably connected to the surface of the ball head (304).
2. The angle adjustment mechanism of a ball screw according to claim 1, characterized in that: The front side and the back side of the inner cavity of the semicircular guide groove (305) are both fixedly connected to the limiting plate (303), and one side of the limiting plate (303) is movably connected to the surface of the ball head (304).
3. The angle adjustment mechanism of a ball screw according to claim 1, characterized in that: The inner cavity of the support block (301) is fixedly connected with a screw sleeve (307), and the inner cavity of the screw sleeve (307) is threadedly connected to the surface of the screw rod body (309).
4. The angle adjustment mechanism of a ball screw according to claim 1, characterized in that: The surface of the screw rod body (309) is fixedly connected with an anti-slip sleeve (308), and the material of the anti-slip sleeve (308) is rubber.
5. The angle adjustment mechanism of a ball screw according to claim 1, characterized in that: Bolts (302) are threadedly connected to the front and back sides of the inner cavity of the support block (301), and the surfaces of the bolts (302) are threadedly connected to the inner cavity of the fixed base plate (1).
6. The angle adjustment mechanism of a ball screw according to claim 1, characterized in that: A support mechanism (4) is installed at the bottom of the rotating upper plate (2), and the support mechanism (4) includes a bearing seat (401) and a support shaft (404). The bottom of the bearing seat (401) is fixedly connected to the top of the fixed bottom plate (1), and the top of the support shaft (404) is fixedly connected to the bottom of the rotating upper plate (2). The inner cavity of the bearing seat (401) is fixedly connected to an angular contact ball bearing (403), and the top of the bearing seat (401) is fixedly connected to a pressure cover (405). The surface of the support shaft (404) is movably connected to the inner cavity of the angular contact ball bearing (403).
7. The angle adjustment mechanism of a ball screw according to claim 6, characterized in that: The bottom of the support shaft (404) is threadedly connected to a nut (402), and the surface of the nut (402) is movably connected to the inner cavity of the fixed base plate (1).