CN218613880U - Platform with four adjustable degrees of freedom - Google Patents
Platform with four adjustable degrees of freedom Download PDFInfo
- Publication number
- CN218613880U CN218613880U CN202221876197.1U CN202221876197U CN218613880U CN 218613880 U CN218613880 U CN 218613880U CN 202221876197 U CN202221876197 U CN 202221876197U CN 218613880 U CN218613880 U CN 218613880U
- Authority
- CN
- China
- Prior art keywords
- rotating
- support rod
- bearing
- degree
- freedom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Support Of Aerials (AREA)
Abstract
The utility model discloses a four degree of freedom adjustable platforms, including fixed branch, three degree of freedom platforms, rotary device, connecting rod and rotation branch, wherein: the rear end of the fixed support rod is a fixed end, and the three-degree-of-freedom platform is arranged at the front end of the fixed support rod; the rotating device is arranged on the three-degree-of-freedom platform; one end of the connecting support rod is fixed on the rotating device, and the other end of the connecting support rod is used for coaxially mounting the rotating support rod; the front end of the rotating support rod is used for installing an antenna to be tested, and the rotating support rod can rotate relative to the connecting support rod. The utility model provides a four degree of freedom adjustable platforms can effectively solve the antenna and accomplish the back position at the installation, and the angle can not debug and the problem of inconvenient debugging.
Description
Technical Field
The utility model relates to a technological equipment technical field, concretely relates to four degree of freedom adjustable platforms.
Background
After an electromagnetically functional structural member (e.g., a radome) is manufactured, it is usually necessary to simulate the antenna and its relative position, and then test its performance. The antenna usually needs a tooling to mount it on some fixed platform. The conventional tooling is a rigid piece, and once the antenna is installed, the position of the antenna is difficult to change. And the position of the analog antenna is generally strict, and once the manufacturing error of the tool is large, the tool needs to be repaired, so that the test period is wasted.
The clearance between the part is adjusted through the elasticity of screw to the frock that has now finely tuning, is hard friction between the part, not only adjusts inconvenient but also uses the part that still can wear and tear for a long time, leads to the precision variation, uses inconveniently.
Generally, an antenna has different postures in one test period, for example, the antenna needs to rotate by 180 degrees and completes one period in the process, the method is based on the existing tool, namely, one tool is manufactured for each posture or different antenna mounting hole positions are designed on one tool, the tool or the antenna needs to be disassembled and assembled when testing different postures, the antenna position degree needs to be measured when the antenna is disassembled and assembled every time, and the test efficiency is influenced.
Disclosure of Invention
The utility model aims at providing a four degree of freedom adjustable platforms, mainly solve the antenna and accomplish the back position at the installation, the problem of angle can not debug and inconvenient debugging.
In order to realize the task, the utility model adopts the following technical scheme:
the utility model provides a four degree of freedom adjustable platforms, includes fixed branch, three degree of freedom platforms, rotary device, connecting support rod and rotation branch, wherein:
the rear end of the fixed support rod is a fixed end, and the three-degree-of-freedom platform is arranged at the front end of the fixed support rod; the rotating device is arranged on the three-degree-of-freedom platform; one end of the connecting support rod is fixed on the rotating device, and the other end of the connecting support rod is used for coaxially mounting the rotating support rod; the front end of the rotating support rod is used for installing an antenna to be tested, and the rotating support rod can rotate relative to the connecting support rod.
Furthermore, the three-degree-of-freedom platform can move in the X, Y and Z directions, wherein the Z direction is an axis direction, and the X and Y directions are directions perpendicular to the axis.
Further, the rotary device comprises a first bearing, a bearing seat, a connecting shaft, a rotary end cover and a nut, wherein:
the bearing seat is fixed on the three-degree-of-freedom platform, a central hole is formed in the bearing seat, a bearing mounting ring is arranged on one side of the central hole, the rear end of the connecting shaft is mounted in the bearing mounting ring through a first bearing, the outer ring of the first bearing is tightly matched with the inner wall of the bearing mounting ring, and the connecting shaft and the inner ring of the first bearing are locked at the end part; the rotating end cover is buckled outside the bearing mounting ring, the other first bearing is arranged in an inner hole of the rotating end cover, the front end of the connecting shaft penetrates through the first bearing and the front end face of the rotating end cover, the first nut is screwed on the part of the connecting shaft penetrating through the rotating end cover, and the connecting shaft is locked relative to the rotating end cover.
Furthermore, a pair of limiting tables is arranged on the bearing seat at intervals on the side face of the bearing mounting ring, a clamping table is arranged on the side face of the rotating end cover, and the clamping table is located between the pair of limiting tables.
Furthermore, threaded holes are formed in the pair of limiting tables, and a pair of ratchet screws are arranged on the limiting tables; the screw on the ratchet screw is screwed into the threaded hole, and the end of the screw abuts against the clamping table and pushes the clamping table to move by rotating the ratchet screw, so that the rotation angle of the rotary end cover is adjusted.
Furthermore, threaded holes are formed in the side wall of the rotating end cover, and position locking screws are assembled in the threaded holes.
Furthermore, the rear end of the connecting support rod is fixed on the rotary end cover through a flange plate, the front end of the connecting support rod is provided with a cross positioning frame, and the middle part of the cross positioning frame is provided with an installation shaft; the rear end of the rotating support rod is provided with a cross rotating frame with the size consistent with that of the cross positioning frame, the rotating support rod is provided with a central hole, a second bearing is assembled in the central hole of the rotating support rod, and the mounting shaft penetrates through the cross rotating frame and the second bearing in the rotating support rod; the front end face of the rotating support rod is provided with a counter bore coaxial with the central hole, and the mounting shaft is connected with the rotating support rod in the counter bore through a second nut.
Furthermore, bosses are arranged at two ends of one positioning arm of the cross-shaped positioning frame, clamping hooks matched with the bosses are arranged at two ends of one positioning arm of the cross-shaped rotating frame, and when the cross-shaped rotating frame is axially overlapped relative to the cross-shaped positioning frame, the clamping hooks are meshed with the bosses.
Compared with the prior art, the utility model has the following technical characteristics:
the utility model provides a four degree of freedom adjustable platforms can effectively solve the antenna and accomplish the back position at the installation, the problem of angle can not debug and inconvenient debugging to the solution realizes that the platform is rotatory 180 degrees along the axis under the prerequisite of not dismantling platform fixed connection, has alleviateed intensity of labour, has improved efficiency of software testing.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the present invention;
fig. 3 is a schematic diagram of a process of rotating the cross-shaped rotating frame 180 degrees counterclockwise.
The reference numbers in the figures illustrate: the three-freedom-degree bearing device comprises a fixed supporting rod 1, a 2 three-freedom-degree platform, a 3 rotating device, a 4 connecting supporting rod, a 5 rotating supporting rod, a 6 ratchet screw, a 7 first bearing, a 8 bearing seat, a 9 connecting shaft, a 10 rotating end cover, a 11 first nut component, a 12 second bearing, a 13 second nut component, a 14 bearing mounting ring, a 15 limiting table, a 16 clamping table, a 17-position locking screw, an 18 boss, a 19 cross positioning frame, a 20 cross rotating frame, a 21 clamping hook and a 22 mounting shaft.
Detailed Description
Referring to fig. 1 to 3, the utility model provides a four degree of freedom adjustable platform, including fixed branch 1, three degree of freedom platform 2, rotary device 3, connecting rod 4 and rotation branch 5, wherein:
the rear end of the fixed support rod 1 is a fixed end, and the three-degree-of-freedom platform 2 is arranged at the front end 1 of the fixed support rod; the rotating device 3 is arranged on the three-degree-of-freedom platform 2; one end of the connecting support rod 4 is fixed on the rotating device 3, and the other end of the connecting support rod is used for coaxially installing a rotating support rod 5; wherein, the front end of the rotating support rod 5 is used for installing an antenna to be tested, and the rotating support rod 5 can rotate relative to the connecting support rod 4.
In this embodiment, the three-degree-of-freedom platform 2 is a finished product in the prior art, and can move in the X, Y, and Z directions, where the Z direction is an axis direction, the X and Y directions are directions perpendicular to the axis, and the XY directions are perpendicular to each other.
Wherein, rotary device 3 comprises two first bearings 7, bearing frame 8, connecting axle 9, rotatory end cover 10, nut component 11 and two ratchet screws 6, wherein:
the bearing seat 8 is fixed on the three-degree-of-freedom platform 2, a central hole is formed in the bearing seat 8, a bearing mounting ring 14 is arranged on one side of the central hole, the rear end of the connecting shaft 9 is mounted in the bearing mounting ring 14 through a first bearing 7, the outer ring of the first bearing 7 is tightly matched with the inner wall of the bearing mounting ring 14, and the connecting shaft 9 and the inner ring of the first bearing 7 are locked at the end part through nuts; the rotating end cover 10 is buckled outside the bearing mounting ring 14, the other first bearing 7 is arranged in an inner hole of the rotating end cover 10, the front end of the connecting shaft 9 penetrates through the first bearing 7 and the front end face of the rotating end cover 10, and a first nut component 11 is screwed on the part of the connecting shaft 9 penetrating through the rotating end cover to lock the connecting shaft 9 relative to the rotating end cover 10;
a pair of limiting tables 15 are arranged on the bearing seat 8 at intervals on the side surface of the bearing mounting ring 14, and a clamping table 16 is arranged on the side surface of the rotating end cover 10; when the rotary end cover 10 is buckled on the bearing seat 8, the clamping table 16 is positioned between the pair of limiting tables 15; through the matching of the clamping table 16 and the limiting table 15, the rotating end cover 10 can only rotate within a limited range; the pair of limiting tables 15 are provided with threaded holes and are provided with a pair of ratchet screws 6; the screw on the ratchet screw 6 is screwed into the threaded hole, and the end of the screw abuts against the clamping table 16 and pushes the clamping table 16 to move by rotating the ratchet screw 6, so that the rotation angle of the rotary end cover 10 can be adjusted. The side wall of the rotating end cover 10 is provided with a threaded hole, and the end of the position locking screw 17 is abutted against the outer wall of the bearing mounting ring 14 by screwing the position locking screw 17 into the threaded hole, so that the rotating end cover can be fixed in position relative to the bearing mounting ring 14 after the angle of the rotating end cover 10 is adjusted.
The rear end of the connecting support rod 4 is fixed on the rotary end cover 10 through a flange plate, the front end of the connecting support rod 4 is provided with a cross positioning frame 19, and the middle part of the cross positioning frame 19 is provided with a mounting shaft 22; the rear end of the rotating support rod 5 is provided with a cross-shaped rotating frame 20 with the size consistent with that of the cross-shaped positioning frame 19, the rotating support rod 5 is provided with a central hole, a second bearing 12 is assembled in the central hole of the rotating support rod 5, and the installation shaft 22 penetrates through the cross-shaped rotating frame 20 and the second bearing 12 in the rotating support rod 5; a counter bore coaxial with the central hole is arranged on the front end face of the rotating support rod 5, and the mounting shaft 22 is connected with the rotating support rod 5 in the counter bore through a second nut component 13; the front end face of the rotating support rod 5 is used for mounting an antenna. Wherein, the both ends of a locating arm of cross locating rack 19 are provided with boss 18, and the both ends of a locating arm of cross swivel mount 20 are provided with the pothook 21 with boss 18 complex, when cross swivel mount 20 is coincident in the axial relative to cross locating rack 19, pothook 21 and boss 18 interlock.
In one embodiment of the present invention, the working process is as follows:
firstly, an antenna is arranged on a rotating support rod 5, a cross positioning frame 19 and a cross rotating frame 20 are kept in an engaged state, the cross positioning frame 19 and the cross rotating frame 20 can be locked through screws at the moment, then the whole platform is arranged on an electric measurement turntable through a fixed end of a fixed support rod 1 and a bolt, and the axial line of the antenna is ensured to be coaxial with a rolling ring on the electric measurement turntable through three-degree-of-freedom adjustment of a three-degree-of-freedom platform 2; then, the ratchet wheel screw 6 drives the rotating end cover 10 to drive the connecting support rod 4, the rotating support rod 5 and the antenna to integrally rotate, the direction of the antenna is adjusted to ensure that the direction of the antenna meets the test requirement, and then the rotating end cover is fixed in position relative to the bearing mounting ring 14 through the position locking screw 17, so that the antenna is mounted and positioned;
in the test process, the rotation of the support rod 5 can drive the antenna to rotate 180 degrees on the axis of the antenna, and whether the antenna completes the rotation of 180 degrees can be conveniently determined through the matching of the lug boss 18 and the hook 21; that is, in the engaged state, after one rotation, the boss 18 and the hook 21 are engaged again.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equally replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application, and are intended to be included within the scope of the present application.
Claims (8)
1. The utility model provides a four degree of freedom adjustable platforms which characterized in that, includes fixed support rod (1), three degree of freedom platforms (2), rotary device (3), connecting rod (4) and rotation branch (5), wherein:
the rear end of the fixed support rod (1) is a fixed end, and the three-degree-of-freedom platform (2) is arranged at the front end of the fixed support rod (1); the rotating device (3) is arranged on the three-degree-of-freedom platform (2); one end of the connecting support rod (4) is fixed on the rotating device (3), and the other end is used for coaxially mounting the rotating support rod (5); the front end of the rotating support rod (5) is used for installing an antenna to be tested, and the rotating support rod (5) can rotate relative to the connecting support rod (4).
2. The four-degree-of-freedom adjustable platform according to claim 1, wherein the three-degree-of-freedom platform (2) is capable of moving in X, Y, Z directions, wherein the Z direction is an axial direction, and the X, Y directions are directions perpendicular to the axial direction.
3. The four degree-of-freedom adjustable platform according to claim 1, wherein the rotation device (3) comprises a first bearing (7), a bearing seat (8), a connecting shaft (9), a rotating end cap (10), a nut assembly (11), wherein:
the bearing seat (8) is fixed on the three-degree-of-freedom platform (2), a center hole is formed in the bearing seat (8), a bearing mounting ring (14) is arranged on one side of the center hole, the rear end of the connecting shaft (9) is mounted in the bearing mounting ring (14) through a first bearing (7), the outer ring of the first bearing (7) is tightly matched with the inner wall of the bearing mounting ring (14), and the connecting shaft (9) and the inner ring of the first bearing (7) are locked at the end part; the rotating end cover (10) is buckled outside the bearing mounting ring (14), the other first bearing (7) is arranged in an inner hole of the rotating end cover (10), the front end of the connecting shaft (9) penetrates through the first bearing (7) and the front end face of the rotating end cover (10), a first nut component (11) is screwed on the part, penetrating through the rotating end cover (10), of the connecting shaft (9), and the connecting shaft (9) is locked relative to the rotating end cover (10).
4. The platform with four degrees of freedom adjustable according to claim 3, characterized in that a pair of limiting tables (15) are arranged on the bearing seat (8) at intervals on the side surface of the bearing mounting ring (14), a clamping table (16) is arranged on the side surface of the rotating end cover (10), and the clamping table (16) is positioned between the pair of limiting tables (15).
5. The four-degree-of-freedom adjustable platform according to claim 4, wherein the pair of limiting tables (15) are provided with threaded holes and a pair of ratchet screws (6); the screw on the ratchet screw (6) is screwed into the threaded hole, and the end of the screw abuts against the clamping table (16) and pushes the clamping table (16) to move by rotating the ratchet screw (6), so that the rotation angle of the rotating end cover (10) is adjusted.
6. The four degree-of-freedom adjustable platform according to claim 3, characterized in that the side wall of the rotating end cover (10) is provided with a threaded hole, and a position locking screw (17) is assembled in the threaded hole.
7. The platform with four degrees of freedom adjustable according to claim 1, characterized in that the rear end of the connecting strut (4) is fixed on the rotary end cover (10) through a flange, the front end of the connecting strut (4) is provided with a cross positioning frame (19), and the middle part of the cross positioning frame (19) is provided with a mounting shaft (22); the rear end of the rotating support rod (5) is provided with a cross rotating frame (20) with the size consistent with that of the cross positioning frame (19), the rotating support rod (5) is provided with a central hole, a second bearing (12) is assembled in the central hole of the rotating support rod (5), and the mounting shaft (22) penetrates through the cross rotating frame (20) and the second bearing (12) in the rotating support rod (5); a counter bore coaxial with the central hole is arranged on the front end face of the rotating support rod (5), and the mounting shaft (22) is connected with the rotating support rod (5) through a second nut component (13) in the counter bore.
8. The platform with four degrees of freedom adjustable according to claim 7, characterized in that the two ends of one positioning arm of the cross positioning frame (19) are provided with bosses (18), the two ends of one positioning arm of the cross rotating frame (20) are provided with hooks (21) matched with the bosses (18), and when the cross rotating frame (20) is axially overlapped relative to the cross positioning frame (19), the hooks (21) are engaged with the bosses (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876197.1U CN218613880U (en) | 2022-07-20 | 2022-07-20 | Platform with four adjustable degrees of freedom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876197.1U CN218613880U (en) | 2022-07-20 | 2022-07-20 | Platform with four adjustable degrees of freedom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218613880U true CN218613880U (en) | 2023-03-14 |
Family
ID=85457012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221876197.1U Active CN218613880U (en) | 2022-07-20 | 2022-07-20 | Platform with four adjustable degrees of freedom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218613880U (en) |
-
2022
- 2022-07-20 CN CN202221876197.1U patent/CN218613880U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1596075B1 (en) | Three-dimensionally adjustable mounting device | |
| CN218613880U (en) | Platform with four adjustable degrees of freedom | |
| US8082642B1 (en) | Articulating head with linear movement assembly for computer controlled milling machines | |
| CN109238103B (en) | Motor bearing clearance test platform | |
| CN103862409B (en) | Servo valve body assembling tooling | |
| CN111422384B (en) | Adjustable cube star rotating tool | |
| CN111687799B (en) | Adjustable barrel support | |
| CN115327173A (en) | Degree of freedom adjustable thunderbolt test fixture | |
| CN112276602A (en) | Annular adjustable positioning tool | |
| CN216770440U (en) | Automobile transfer case tooth side clearance measuring device | |
| CN111633446A (en) | Fixing device for processing equipment and processing equipment | |
| CN220084349U (en) | Detect automobile parts and use detection frame | |
| CN221037260U (en) | Wind-powered electricity generation is surface accuracy detection device for wheel hub | |
| CN218156601U (en) | Multi-range testing device for miniature motor for aviation | |
| CN212109935U (en) | Wire harness full-freedom-degree key size production detection assembly and wire harness detection tool thereof | |
| CN213040190U (en) | Rotating structure and elastic piece height detection mechanism | |
| CN221280200U (en) | Space fixing device of rotating speed measuring system | |
| CN220062846U (en) | Centering measuring tool for low-temperature pump motor support and coupling wheel alignment | |
| CN220830349U (en) | Motor installation assembly | |
| CN220185521U (en) | Connection structure | |
| CN113358274B (en) | Double-force-source six-dimensional force sensor static calibration device and calibration method | |
| CN111765165B (en) | Bearing convenient to location | |
| CN219347721U (en) | Wind-powered electricity generation wheel hub flange port is with examining utensil | |
| CN216246058U (en) | Examine stick | |
| CN219798723U (en) | Connecting device for vehicle quarter suspension test bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |