Three-axis linkage high-precision motion platform

Abstract

The utility model discloses a three-axis linkage high-precision motion platform which comprises a mounting table, an electric telescopic rod is fixed to the inner wall of the bottom of the mounting table, a first lead screw motion assembly is fixed to the output end of the electric telescopic rod, the output end of the first lead screw motion assembly is movably connected with a moving seat, and a second lead screw motion assembly is fixed to the top of the moving seat. The first lead screw moving assembly and the second lead screw moving assembly are arranged in a crossed mode, the output end of the second lead screw moving assembly is movably connected with a moving platform body, connecting plates are fixed to the outer wall of one side of the moving platform body and the outer wall of one side of the moving base through screws, and injection pipes are fixed to through holes formed in the surfaces of the connecting plates. And sponge is adhered to the bottom of the injection pipe. According to the utility model, the injection pipe extrudes the connecting pipe, so that after the injection hole is aligned with the pipeline at the bottom of the oil can, lubricating oil is guided into the connecting pipe through the injection hole and finally guided into the injection pipe and the sponge through the connecting pipe, and automatic injection of the lubricating oil is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of motion platforms, in particular to a high-precision motion platform with three-axis linkage. Background Technique

[0002] In the prior art, a numerical control machine tool is used to process workpieces. After the product drawing is designed, various turntables, worm wheels, worm shafts and other components are processed by using the numerical control machine tool, and then the components are assembled according to the drawing. The numerical control machine tool is used and operated based on a motion platform. The motion platform realizes high-precision position adjustment through the linkage on the X, Y, and Z axes, so as to realize the processing of workpieces.

[0003] After retrieval, a patent with the Chinese patent application number 202321414305.8 discloses a three-axis linkage motion control training platform, which includes a training table and a three-axis linkage motion component installed on the training table; a perforated plate extending upward is provided on the back side of the training table, and an air switch, a power controller, a PLC controller, a switch, a touch screen, a servo controller, a stepper motor driver, a button box and other electrical control components are installed on the perforated plate.

[0004] The following deficiencies exist in the above-mentioned three-axis linkage motion control training platform: during the training process, due to the lack of facilities for lubricating the three-axis linkage motion mechanism, when the three-axis linkage motion mechanism is used for a long time, the three-axis linkage motion mechanism will be worn due to the lack of lubricating oil, which will affect its motion accuracy. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a high-precision motion platform with three-axis linkage.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A high-precision motion platform with three-axis linkage includes an installation table. An electric telescopic rod is fixed to the inner wall of the bottom of the installation table, and a lead screw motion component one is fixed to the output end of the electric telescopic rod. The output end of the motion component one is movably connected with a moving seat, and a lead screw motion component two is fixed to the top of the moving seat. The lead screw motion component one and the lead screw motion component two are arranged crosswise, and the output end of the lead screw motion component two is movably connected with a motion platform main body. A connecting plate is fixed to the outer wall of one side of the motion platform main body and the outer wall of one side of the moving seat through screws, and an injection pipe is fixed to the through hole formed on the surface of the connecting plate. A sponge is bonded to the bottom of the injection pipe.

[0008] As a further solution of the utility model: the first lead screw motion assembly includes a second support plate and a second moving plate. The second moving plate is fixed to the output end of the electric telescopic rod through a pin, and the two second support plates are both fixed to the outer wall of the top of the second moving plate. A second guide rod is fixed between the two second support plates through screws. A second lead screw main body is movably connected between the two second support plates, and the second lead screw main body and the moving seat are connected through a first nut.

[0009] As a further solution of the utility model: a second driving motor is fixed to the outer wall of one side of the second support plate through screws, and the output end of the second driving motor and one end of the second lead screw main body are connected through a coupling.

[0010] As a further solution of the utility model: the second lead screw motion assembly includes a first moving plate and a first support plate. The first moving plate is fixed to the top of the moving seat through screws, and the two first support plates are fixed to the outer wall of the top of the first moving plate through screws. A first guide rod is fixed between the two first support plates through screws, and the main body of the motion platform is movably connected with the first guide rod.

[0011] As a further solution of the utility model: a first driving motor is fixed to the outer wall of one side of the first support plate through screws, and the output end of the first driving motor is connected with a first lead screw main body through a coupling. The first lead screw main body and the main body of the motion platform are connected through a second nut.

[0012] As a further solution of the utility model: injection mechanisms are installed on the tops of the first support plate and the second support plate. The injection mechanism includes a mounting block and a sliding sleeve. The two mounting blocks are respectively fixed to the tops of the first support plate and the second support plate through screws, and the sliding sleeve is fixedly welded with the mounting block. An oil pot is fixed to the top of the sliding sleeve through a pipeline.

[0013] As a further solution of the utility model: a connecting pipe is movably connected to the inner wall of the sliding sleeve, a spring is clamped between the inner wall of one side of the connecting pipe and the outer wall of one side of the sliding sleeve, and an injection hole matched with the pipeline is opened at the top of the connecting pipe.

[0014] As a further solution of the utility model: one end of the connecting pipe is of a closed structure and the other end is of an open structure.

[0015] Compared with the prior art, the utility model provides a high-precision motion platform with three-axis linkage, and has the following beneficial effects:

[0016] 1. By arranging the sponge, after it is immersed in the lubricating oil, it lubricates the first lead screw motion assembly and the second lead screw motion assembly, so as to ensure the smoothness in the using process of the two.

[0017] 2. The squeezing of the connecting pipe by the injection pipe enables the lubricating oil to be introduced into the connecting pipe through the injection hole after the injection hole is aligned with the pipe at the bottom of the oil pot, and finally to be introduced into the injection pipe and the sponge through the connecting pipe, realizing the automatic injection of the lubricating oil.

[0018] 3. By setting the first driving motor, the electric telescopic rod and the second driving motor, the position of the moving platform main body on the X, Y, and Z axes can be adjusted.

[0019] The parts not involved in this device are the same as the prior art or can be implemented by the prior art. The structure of the present utility model is simple and the operation is convenient. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of a high-precision motion platform with three-axis linkage proposed by the present utility model;

[0021] Figure 2 It is a schematic diagram of the main structure of a high-precision motion platform with three-axis linkage proposed by the present utility model;

[0022] Figure 3 It is a schematic diagram of the installation structure of the lubrication part of a high-precision motion platform with three-axis linkage proposed by the present utility model;

[0023] Figure 4 It is a partial exploded structure schematic diagram of the lubrication part of a high-precision motion platform with three-axis linkage proposed by the present utility model.

[0024] In the figure: mounting table 1; first moving plate 2; moving platform main body 3; first guide rod 4; main screw rod 5; first support plate 6; second guide rod 7; first driving motor 8; moving seat 9; second support plate 10; second moving plate 11; electric telescopic rod 12; main screw rod 13; second driving motor 14; connecting plate 15; injection pipe 16; oil pot 17; sponge 18; injection hole 19; connecting pipe 20; spring 21; mounting block 22; sliding sleeve 23. Detailed Embodiment

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0026] Embodiment 1

[0027] A high-precision motion platform with three-axis linkage, as Figures 1 to 4As shown in the figure, it includes an installation platform 1. The inner wall of the bottom of the installation platform 1 is fixed with an electric telescopic rod 12 by bolts. The output end of the electric telescopic rod 12 is fixed with a first lead screw motion assembly. The output end of the motion assembly is slidably connected with a moving seat 9. The top of the moving seat 9 is fixed with a second lead screw motion assembly. The first lead screw motion assembly and the second lead screw motion assembly are arranged crosswise. The output end of the second lead screw motion assembly is slidably connected with a motion platform main body 3. The outer walls of one side of the motion platform main body 3 and one side of the moving seat 9 are both fixed with connecting plates 15 by screws. The injection pipe 16 is fixed in the through holes opened on the surface of the connecting plate 15. A sponge 18 is bonded to the bottom of the injection pipe 16;

[0028] By setting the electric telescopic rod 12, the position of the motion platform main body 3 in the Z-axis can be adjusted. By using the first lead screw motion assembly and the second lead screw motion assembly, the position of the motion platform main body 3 in the X-axis and Y-axis can be adjusted, so as to realize the three-axis motion of the motion platform main body 3. After the first lead screw motion assembly and the second lead screw motion assembly are used for a long time, in order to ensure the motion accuracy, it is necessary to lubricate the two. The injection pipe 16 can be used to inject lubricating oil onto the sponge 18. After the lubricating oil enters the sponge 18, the sponge 18 is soaked, so that when the motion platform main body 3 and the moving seat 9 move, the wetted sponge 18 is driven to lubricate the first lead screw motion assembly and the second lead screw motion assembly, thereby improving the smoothness during its operation.

[0029] Furthermore, the first lead screw motion assembly includes a second support plate 10 and a second moving plate 11. The second moving plate 11 is fixed to the output end of the electric telescopic rod 12 through a pin. Both of the two second support plates 10 are fixed to the outer wall of the top of the second moving plate 11 by bolts. A second guide rod 7 is fixed between the two second support plates 10 by screws. The moving seat 9 is slidably connected with the second guide rod 7. A second lead screw main body 13 is rotatably connected between the two second support plates 10. The second lead screw main body 13 and the moving seat 9 are connected by a first lead screw nut. A second driving motor 14 is fixed to the outer wall of one side of the second support plate 10 by screws. The output end of the second driving motor 14 and one end of the second lead screw main body 13 are connected by a coupling;

[0030] When the second driving motor 14 drives the second lead screw main body 13 to rotate, the moving seat 9 moves under the guiding action of the second guide rod 7, realizing the position adjustment of the motion platform main body 3 in the X-axis direction. During the movement of the moving seat 9, the sponge 18 immersed with lubricating oil is driven to lubricate between the second guide rod 7, the second lead screw main body 13 and the first lead screw nut during the movement.

[0031] Further, the second lead screw motion assembly includes a first moving plate 2 and a first support plate 6. The first moving plate 2 is fixed to the top of the moving base 9 by screws, and two first support plates 6 are fixed to the top of the first moving plate 2 by screws. A first guide rod 4 is fixed between the two first support plates 6 by screws, and the main body 3 of the moving platform is slidably connected to the first guide rod 4. A first driving motor 8 is fixed to the outer wall of one side of the first support plate 6 by screws, and the output end of the first driving motor 8 is connected to a first lead screw main body 5 through a coupling. The first lead screw main body 5 is connected to the main body 3 of the moving platform through a second nut;

[0032] The first driving motor 8 drives the rotation of the first lead screw main body 5, so that the main body 3 of the moving platform moves along the Y-axis under the guiding action of the first guide rod 4. During the movement of the main body 3 of the moving platform, the sponge 18 thereon drives to lubricate the main body 3 of the moving platform, the first lead screw main body 5 and the second nut.

[0033] Working principle: During use, the electric telescopic rod 12 is used to adjust the position of the main body 3 of the moving platform on the Y-axis. The second driving motor 14 drives the rotation of the second lead screw main body 13, so that the moving base 9 adjusts the position of the main body 3 of the moving platform on the X-axis during the movement along the second guide rod 7. When the first driving motor 8 drives the rotation of the first lead screw main body 5, the main body 3 of the moving platform adjusts its position along the Y-axis direction, thereby realizing the position adjustment of the main body 3 of the moving platform on three axes.

[0034] Embodiment 2

[0035] A three-axis linkage high-precision moving platform. For the convenience of injecting lubricating oil, as Figures 1 to 4 shown, the following supplements are made in this embodiment on the basis of Embodiment 1: Injection mechanisms are installed on the tops of both the first support plate 6 and the second support plate 10. The injection mechanism includes a mounting block 22 and a sliding sleeve 23. The two mounting blocks 22 are respectively fixed to the tops of the first support plate 6 and the second support plate 10 by screws, and the sliding sleeve 23 is fixedly welded to the mounting block 22. An oil pot 17 is fixed to the top of the sliding sleeve 23 through a pipeline. A connecting pipe 20 is slidably connected to the inner wall of the sliding sleeve 23, and a spring 21 is clamped between the inner wall of one side of the connecting pipe 20 and the outer wall of one side of the sliding sleeve 23. An injection hole 19 for cooperating with the pipeline is opened at the top of the connecting pipe 20;

[0036] When the injection pipe 16 fits with one end of the connecting pipe 20 during movement, as the injection pipe 16 continues to move, the end of the injection pipe 16 squeezes one end of the connecting pipe 20. After being squeezed, the connecting pipe 20 moves along the sliding sleeve 23. During this process, the spring 21 is gradually stretched. When the injection hole 19 on the connecting pipe 20 is aligned with the pipe at the bottom of the oil pot 17, the lubricating oil stored in the oil pot 17 enters the connecting pipe 20 through the pipe and the injection hole 19, and finally is introduced into the sponge 18 through the connecting pipe 20 and the injection pipe 16. One end of the connecting pipe 20 is a closed structure and the other end is an open structure. In this way, the automatic injection of lubricating oil is realized.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A high-precision motion platform with three-axis linkage, including a mounting table (1), characterized in that, The inner wall of the bottom of the installation table (1) is fixed with an electric telescopic rod (12), and the output end of the electric telescopic rod (12) is fixed with a first lead screw motion assembly. The output end of the motion assembly is movably connected with a moving seat (9), and the top of the moving seat (9) is fixed with a second lead screw motion assembly. The first lead screw motion assembly and the second lead screw motion assembly are arranged in a crosswise manner. The output end of the second lead screw motion assembly is movably connected with a motion platform main body (3). One side outer wall of the motion platform main body (3) and one side outer wall of the moving seat (9) are both fixed with a connecting plate (15) by screws. The injection pipe (16) is fixed through the through hole opened on the surface of the connecting plate (15), and a sponge (18) is adhered to the bottom of the injection pipe (16).

2. The high-precision motion platform with three-axis linkage according to claim 1, characterized in that, The first lead screw motion assembly includes a second support plate (10) and a second moving plate (11). The second moving plate (11) is fixed to the output end of the electric telescopic rod (12) through a pin. Two second support plates (10) are fixed to the top outer wall of the second moving plate (11). A second guide rod (7) is fixed between the two second support plates (10) by screws. A second lead screw main body (13) is movably connected between the two second support plates (10), and the second lead screw main body (13) and the moving seat (9) are connected through a first nut.

3. A high-precision motion platform with three-axis linkage according to claim 2, characterized in that, A second driving motor (14) is fixed to one side outer wall of the second support plate (10) by screws, and the output end of the second driving motor (14) and one end of the second lead screw main body (13) are connected through a coupling.

4. A high-precision motion platform with three-axis linkage according to claim 3, characterized in that The second lead screw motion assembly includes a first moving plate (2) and a first support plate (6). The first moving plate (2) is fixed to the top of the moving seat (9) by screws. Two first support plates (6) are fixed to the top of the first moving plate (2) by screws. A first guide rod (4) is fixed between the two first support plates (6) by screws, and the motion platform main body (3) is movably connected with the first guide rod (4).

5. A high-precision motion platform with three-axis linkage according to claim 4, characterized in that, A first driving motor (8) is fixed to one side outer wall of the first support plate (6) by screws, and the output end of the first driving motor (8) is connected with a first lead screw main body (5) through a coupling. The first lead screw main body (5) and the motion platform main body (3) are connected through a second nut.

6. A high-precision motion platform with three-axis linkage according to claim 5, characterized in that, Injection mechanisms are installed on the top of the first support plate (6) and the top of the second support plate (10). The injection mechanism includes a mounting block (22) and a sliding sleeve (23). The two mounting blocks (22) are respectively fixed to the top of the first support plate (6) and the top of the second support plate (10) by screws. The sliding sleeve (23) is fixedly welded to the mounting block (22), and an oil pot (17) is fixed to the top of the sliding sleeve (23) through a pipeline.

7. A high-precision motion platform with three-axis linkage according to claim 6, characterized in that, A connecting pipe (20) is movably connected to the inner wall of the sliding sleeve (23). A spring (21) is clamped between one side inner wall of the connecting pipe (20) and one side outer wall of the sliding sleeve (23), and an injection hole (19) for cooperating with the pipeline is opened at the top of the connecting pipe (20).

8. A high-precision motion platform with three-axis linkage according to claim 7, characterized in that, One end of the connecting pipe (20) is of a closed structure and the other end is of an open structure.

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