Electric cylinder three-degree-of-freedom motion platform

By combining the X, Y, and Z axis lead screw modules and the directional adjustment device, rapid and precise control of the electric cylinder three-degree-of-freedom motion platform is achieved, solving the problem of insufficient control precision in the existing technology and improving the positioning stability of the equipment and the diversity of the simulation equipment.

CN224169785UActive Publication Date: 2026-04-28SUZHOU JOHNSON AUTOMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU JOHNSON AUTOMATION TECH CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing electric cylinder three-degree-of-freedom motion platform is not fast and precise enough in the X, Y and Z directions, which affects the stability and accuracy of the equipment's subsequent work alignment.

Method used

By employing X-axis, Y-axis, and Z-axis lead screw modules and a steering device, combined with a geared motor and gear transmission, precise three-degree-of-freedom control of the support platform can be achieved.

Benefits of technology

It improves the positioning stability and accuracy of the equipment in the X, Y and Z directions, and enhances the diversity of simulation equipment and the flexibility of alignment installation.

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    Figure CN224169785U_ABST
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Abstract

The utility model discloses an electric cylinder three-degree-of-freedom motion platform which comprises an X-axis lead screw module used for guiding, a supporting guide seat is in threaded connection with the interior of the X-axis lead screw module, and an auxiliary shaft seat is arranged on the side portion of the X-axis lead screw module. According to the utility model, the direction adjusting device, the X-axis lead screw module and the Y-axis lead screw module are arranged, and the X-axis lead screw module, the Y-axis lead screw module and the Z-axis lead screw module can perform accurate position adjustment and control on the X, Y and Z three-degree-of-freedom directions of the supporting platform, so that the stability of positioning and butt joint of the equipment on subsequent simulation equipment is effectively improved; meanwhile, the gear motor can adjust and control the lateral angle of the supporting platform through meshing of the driving gear and the driven gear, and the diversity of testing or counterpoint installation of simulation equipment by the supporting platform in the follow-up process is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of electric cylinder equipment technology, specifically to an electric cylinder three-degree-of-freedom motion platform. Background Technology

[0002] Three-degree-of-freedom motion platforms allow for motion operations in three degrees of freedom within a space. They can also perform composite motions with different degrees of freedom according to the needs of the simulation equipment. Three-degree-of-freedom motion platforms are commonly used in film, entertainment, and various simulated driving and flight fields.

[0003] For example, the utility model patent disclosed in publication number CN219747919U discloses an electric cylinder three-degree-of-freedom motion platform, including a base plate. Multiple electric motor cylinders are fixedly connected to the top of the base plate, and a fixed plate is fixedly connected to the output end of each electric motor cylinder. A spring is fixedly connected to the center of the top of the fixed plate. In this utility model, multiple electric motor cylinders cause the worktable to rotate at different heights, coordinating with a metal ball rotating within a groove in a fixed block. This method solves the problem of slow rotation during simulation due to the large mass of the simulation prop, thus improving work efficiency. Furthermore, a servo motor drives a placement plate to rotate on the worktable, adjusting the appropriate angle, and bolts and threaded holes are used to fix the simulation prop. This method eliminates the need for manual angle adjustment and fixation when placing the simulation prop on the worktable, saving time and effort.

[0004] Although the aforementioned electric cylinder motion platform can be adjusted to a certain degree of freedom, it is not convenient to quickly and accurately adjust the X, Y, and Z directions of the motion platform according to the needs, which reduces the stability and accuracy of the subsequent work alignment of the equipment. Therefore, there is an urgent need for an electric cylinder three-degree-of-freedom motion platform to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a three-degree-of-freedom motion platform for an electric cylinder to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a three-degree-of-freedom motion platform for an electric cylinder, comprising an X-axis lead screw module for guidance, a support guide seat threadedly connected inside the X-axis lead screw module, an auxiliary shaft seat provided on the side of the X-axis lead screw module, and a support slide seat slidably disposed inside the auxiliary shaft seat, with positioning brackets fixedly disposed on the upper end faces of the support guide seat and the support slide seat.

[0007] The Y-axis lead screw module is fixedly installed at the front of the positioning bracket, and a positioning slide is threadedly connected to the inner end face of the Y-axis lead screw module. The Y-axis lead screw module is used for positioning and guiding.

[0008] A steering device is fixedly installed on the inner end face of the alignment slide, and the steering device is used for support and steering.

[0009] Preferably, the steering device includes an electric cylinder holder, a Z-axis lead screw module is provided on the front end face of the electric cylinder holder, a positioning slide is threadedly connected inside the Z-axis lead screw module, an alignment guide is provided at the front of the positioning slide, a reduction motor is provided on the rear end face side of the alignment guide, a drive gear is provided at the output end of the reduction motor, a driven gear is rotatably engaged at the middle of the inner end face of the alignment guide, a fixed holder is provided at the center of the front end face of the driven gear, two sets of electric cylinders are provided at the front of the fixed holder, a bearing shaft is provided at the top output end of the two sets of electric cylinders, and a support platform is provided on the upper end face of the two sets of bearing shafts.

[0010] Preferably, there are four sets of bearing shafts, and the four sets of bearing shafts are arranged in a ring above the electric cylinder. The four sets of bearing shafts on both sides can effectively improve the stability of supporting the support platform.

[0011] Preferably, the driven gear meshes with the driving gear, which can effectively improve the stability of the subsequent transmission of the equipment, and also facilitates the precise control of the lateral angle of the support platform.

[0012] Preferably, the rear part of the geared motor does not contact the electric cylinder holder, and the side part of the geared motor does not contact the Z-axis lead screw module. This can prevent the subsequent geared motor from causing limit movement with the Z-axis lead screw module and the electric cylinder holder, thus affecting the stability of the transmission.

[0013] Preferably, the inner end face of the alignment guide is provided with a support groove, and the alignment guide is rotatably engaged with the driven gear through the support groove. The support groove can provide a sufficient limiting foundation for the meshing of the driving gear and the driven gear, thereby improving the stability of the subsequent transmission between the driving gear and the driven gear.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up an adjustment device, an X-axis lead screw module, and a Y-axis lead screw module, can precisely control the position of the support platform in the X, Y, and Z three degrees of freedom directions. This effectively improves the stability and accuracy of the equipment in positioning and docking with subsequent simulation equipment. At the same time, the reduction motor can adjust the lateral angle of the support platform through the meshing of the drive gear and the driven gear, effectively improving the versatility of the support platform in testing or aligning simulation equipment. Attached Figure Description

[0016] Figure 1 This is an exploded view of the main body of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 3 This is an exploded view of the directional adjustment device of this utility model;

[0019] Figure 4 For the present utility model, as follows Figure 3 Enlarged view of a section at point II;

[0020] Figure 5 This is a schematic diagram of the orientation device of this utility model.

[0021] In the diagram: 1-Auxiliary shaft seat, 2-Adjusting device, 3-X-axis lead screw module, 4-Support guide seat, 5-Y-axis lead screw module, 6-Positioning bracket, 7-Support slide, 8-Alignment slide, 21-Support platform, 22-Bearing shaft, 23-Fixed bracket, 24-Electric cylinder, 25-Alignment guide seat, 26-Positioning slide, 27-Electric cylinder bracket, 28-Z-axis lead screw module, 29-Gear motor, 210-Driving gear, 211-Driven gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides an embodiment of a three-degree-of-freedom electric cylinder motion platform, including an X-axis lead screw module 3 for guidance, a support guide seat 4 threadedly connected inside the X-axis lead screw module 3, an auxiliary shaft seat 1 provided on the side of the X-axis lead screw module 3, and a support slide seat 7 slidably disposed inside the auxiliary shaft seat 1. A positioning bracket 6 is fixedly disposed on the upper end face of the support guide seat 4 and the support slide seat 7.

[0024] Y-axis lead screw module 5 is fixedly installed at the front of positioning bracket 6, and alignment slide 8 is threadedly connected to the inner end face of Y-axis lead screw module 5. Y-axis lead screw module 5 is used for positioning and guiding.

[0025] The directional adjustment device 2 is fixedly installed on the inner end face of the alignment slide 8. The directional adjustment device 2 is used for support and directional adjustment.

[0026] The steering device 2 includes an electric cylinder holder 27. A Z-axis lead screw module 28 is provided on the front end face of the electric cylinder holder 27. A positioning slide 26 is threadedly connected inside the Z-axis lead screw module 28. An alignment guide 25 is provided at the front of the positioning slide 26. A reduction motor 29 is provided on the side of the rear end face of the alignment guide 25. A drive gear 210 is provided at the output end of the reduction motor 29. A driven gear 211 is rotatably engaged at the middle of the inner end face of the alignment guide 25. A fixed holder 23 is provided at the center of the front end face of the driven gear 211. Two sets of electric cylinders 24 are provided at the front of the fixed holder 23. A bearing shaft 22 is provided at the top output end of the two sets of electric cylinders 24. A support platform 21 is provided on the upper end face of the two sets of bearing shafts 22.

[0027] There are four sets of bearing shafts 22, and the four sets of bearing shafts 22 are arranged in a ring on the upper part of the electric cylinder 24. The four sets of bearing shafts 22 located on both sides can effectively improve the stability of supporting the support platform 21.

[0028] The driven gear 211 meshes with the driving gear 210, which can effectively improve the stability of the subsequent transmission of the equipment, and also facilitates the precise adjustment of the lateral angle of the support platform 21.

[0029] The rear part of the geared motor 29 does not contact the electric cylinder cassette 27, and the side part of the geared motor 29 does not contact the Z-axis lead screw module 28. This can prevent the geared motor 29 from causing limit movement with the Z-axis lead screw module 28 and the electric cylinder cassette 27, thus affecting the stability of the transmission.

[0030] The inner end face of the alignment guide 25 is provided with a support groove, and the alignment guide 25 is rotatably engaged with the driven gear 211 through the support groove. The support groove can provide a sufficient limiting base for the meshing of the driving gear 210 and the driven gear 211, thereby improving the stability of the subsequent transmission between the driving gear 210 and the driven gear 211.

[0031] Working principle: Before use, the operator can position the required simulation equipment on the upper part of the support platform 21. If multi-degree-of-freedom adjustment of the simulation equipment is required, the X-axis lead screw module 3 can be activated when adjusting the X-direction of the support platform 21. At this time, the X-axis lead screw module 3 can drive the positioning bracket 6 and the Y-axis lead screw module 5 to move in the X-axis direction of freedom through the support guide 4. At the same time, the Y-axis lead screw module 5 can drive the support platform 21 to adjust in the Y direction through the alignment slide 8, and the Z-axis lead screw module 28 can be adjusted through the positioning slide. The 26 motor drives the support platform 21 to adjust in the Z direction. The adjustment in three degrees of freedom can effectively improve the adaptability of the support platform 21 to the adjustment of the simulation equipment. At the same time, if it is necessary to adjust the lateral angle of the support platform 21, the geared motor 29 can be started. The geared motor 29 can drive the driven gear 211 to rotate through the drive gear 210. The driven gear 211 can then quickly and accurately adjust the lateral angle of the support platform 21 through the fixed bracket 23, thereby improving the versatility of the support platform 21 in testing or aligning the simulation equipment.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-degree-of-freedom motion platform for an electric cylinder, comprising an X-axis lead screw module (3) for guidance, a support guide seat (4) threadedly connected inside the X-axis lead screw module (3), an auxiliary shaft seat (1) provided on the side of the X-axis lead screw module (3), and a support slide seat (7) slidably provided inside the auxiliary shaft seat (1), and a positioning bracket (6) fixedly provided on the upper end face of the support guide seat (4) and the support slide seat (7), characterized in that: Y-axis lead screw module (5), the Y-axis lead screw module (5) is fixedly disposed at the front of the positioning card seat (6), and the inner end face of the Y-axis lead screw module (5) is threadedly connected to the alignment slide (8). The Y-axis lead screw module (5) is used for positioning and guiding. The directional adjustment device (2) is fixedly installed on the inner end face of the alignment slide (8) and is used for support and directional adjustment.

2. The electric cylinder three-degree-of-freedom motion platform according to claim 1, characterized in that: The steering device (2) includes an electric cylinder holder (27). A Z-axis lead screw module (28) is provided on the front end face of the electric cylinder holder (27). A positioning slide (26) is threadedly connected inside the Z-axis lead screw module (28). A positioning guide (25) is provided at the front of the positioning slide (26), and a reduction motor (29) is provided on the rear end face of the positioning guide (25). A drive gear is provided at the output end of the reduction motor (29). (210) A driven gear (211) is rotatably engaged at the middle of the inner end face of the alignment guide (25). A fixed bracket (23) is provided at the center of the front end face of the driven gear (211). Two sets of electric cylinders (24) are provided at the front of the fixed bracket (23). A bearing shaft (22) is provided at the top output end of the two sets of electric cylinders (24). A support platform (21) is provided on the upper end face of the two sets of bearing shafts (22).

3. The electric cylinder three-degree-of-freedom motion platform according to claim 2, characterized in that: There are four sets of the bearing shafts (22), and the four sets of bearing shafts (22) are arranged in a ring on the upper part of the electric cylinder (24).

4. The electric cylinder three-degree-of-freedom motion platform according to claim 2, characterized in that: The driven gear (211) meshes with the driving gear (210).

5. The electric cylinder three-degree-of-freedom motion platform according to claim 2, characterized in that: The rear part of the geared motor (29) does not contact the electric cylinder jack (27), and the side part of the geared motor (29) does not contact the Z-axis lead screw module (28).

6. The electric cylinder three-degree-of-freedom motion platform according to claim 2, characterized in that: The inner end face of the alignment guide (25) is provided with a support groove, and the alignment guide (25) is rotated and engaged with the driven gear (211) through the support groove.

Citation Information

Patent Citations

  • Electric cylinder three-degree-of-freedom motion platform

    CN219747919U