CN111761552A - Motion platform suitable for optical communication device encapsulation - Google Patents
Motion platform suitable for optical communication device encapsulation Download PDFInfo
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- CN111761552A CN111761552A CN202010610950.1A CN202010610950A CN111761552A CN 111761552 A CN111761552 A CN 111761552A CN 202010610950 A CN202010610950 A CN 202010610950A CN 111761552 A CN111761552 A CN 111761552A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
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Abstract
The invention discloses a motion platform suitable for packaging an optical communication device, which comprises a base, an object stage, a cross table movably arranged on the base, a frame platform with a central hole, a pair of first guide rail mechanisms respectively guided along the x direction and a pair of second guide rail mechanisms respectively guided along the y direction, wherein the cross table comprises an upper plate and a lower plate which are vertically and crossly arranged, the upper plate is positioned above the central hole, the lower plate is positioned below the central hole, the cross table is not contacted with the frame platform all the time, the pair of first guide rail mechanisms are respectively connected below two ends of the frame platform, and the pair of second guide rail mechanisms are respectively connected below two ends of the lower plate. The motion platform suitable for packaging the optical communication device aims to solve the technical problems that in the prior art, a plane motion platform related to the optical communication device is poor in efficiency and precision and poor in space utilization rate.
Description
Technical Field
The invention belongs to the field of motion platforms suitable for device packaging, and particularly relates to a motion platform suitable for packaging of an optical communication device.
Background
The performance of the optical communication device, which is an important support for information technology, directly affects the development of the information technology. The packaging of the optical communication device is to align, couple and fix the optical channel between the optical and electric components to be packaged by using a high-precision multi-degree-of-freedom motion platform. On the one hand, planar motion has a very wide application as one of many combinations of compound motions. Various parameters (precision, speed, acceleration, stroke, rigidity, size and the like) of the motion platform directly determine the actual application place. On the other hand, a motion platform applied to optical communication device packaging must have submicron positioning accuracy (the optical communication device has a very small structural size, and the optical alignment tolerance of the optical communication device is on the micron level) and centimeter-level motion travel (considering device clamping, optical search reserved space, and the like). In addition, the motion platform needs to work under a certain load (a device clamp and other auxiliary devices), so the motion platform needs to have good rigidity performance.
In the prior art, a planar motion platform for packaging an optical communication device can be divided into a series structure and a parallel structure. They have the disadvantages that:
the upper layer translational motion and the lower layer translational motion of the serial structure plane motion platform are stacked, so that the loads of the two driving devices are inevitably uneven, the movement speed, the acceleration and the precision of the lower layer driving device are influenced, and the packaging efficiency and the packaging precision of the optical communication device are further influenced; the parallel structure planar motion platform in the prior art can basically meet the precision requirement required by the packaging process of an optical communication device, but has the defects of large size, low space utilization rate, insufficient motion stroke or rigidity and the like. And thus cannot be directly used for the packaging of optical communication devices.
Disclosure of Invention
Technical problem to be solved
Based on the technical scheme, the invention provides a motion platform suitable for packaging an optical communication device, and aims to solve the technical problems that in the prior art, a plane motion platform related to the optical communication device is poor in efficiency and precision and poor in space utilization rate.
(II) technical scheme
In order to solve the above technical problems, the present invention provides a motion platform suitable for packaging an optical communication device, the motion platform suitable for packaging an optical communication device includes a base, an object stage, a cross table movably disposed on the base, a frame stage having a central hole, a pair of first rail mechanisms respectively guided in an x direction, and a pair of second rail mechanisms respectively guided in a y direction, the cross table includes an upper plate and a lower plate perpendicularly crossing each other, the upper plate is disposed above the central hole, the lower plate is disposed below the central hole, and the cross table is not in contact with the frame stage at all times, the pair of first rail mechanisms are respectively connected below two ends of the frame stage to be movable in the x direction by the first rail mechanisms, the pair of second rail mechanisms are respectively connected below two ends of the lower plate to be movable in the y direction by the second rail mechanisms, the utility model discloses a light communication device encapsulation, including frame platform, object stage, base, frame platform, object stage, frame platform, object stage, frame platform, object stage, frame platform, frame.
Preferably, the first driving device and the second driving device are respectively a first driving motor and a second driving motor, the first driving motor is connected with a first ceramic strip, one end of the frame platform is provided with a first fixing block for fixing the first ceramic strip, the second driving motor is connected with a second ceramic strip, and one end of the lower plate is provided with a second fixing block for fixing the second ceramic strip.
Preferably, the frame table has upper grooves above two ends in the y direction, two ends of the upper plate extend into the upper grooves, the frame table has lower grooves below two ends in the x direction, and two ends of the upper plate extend into the lower grooves.
Preferably, the upper plate has a downwardly protruding coupling table at a middle portion thereof, and the coupling table is coupled to an upper portion of the lower plate.
Preferably, first rail mechanism, second rail mechanism, third rail mechanism and fourth rail mechanism include that guide rail and slidable connection are in respectively slider on the guide rail, the guide rail in the first rail mechanism is connected the base, slider in the first rail mechanism is connected the frame platform, the guide rail in the second rail mechanism is connected the base, slider in the second rail mechanism is connected the hypoplastron is connected, the guide rail in the third rail mechanism is connected the objective table, the slider of third rail mechanism is connected the upper plate, the guide rail in the fourth rail mechanism is connected the frame platform, the slider of fourth rail mechanism is connected the objective table.
Preferably, the first rail mechanism, the second rail mechanism, the third rail mechanism and the fourth rail mechanism each comprise a rail and 2 sliders slidably coupled to the rail.
Preferably, the frame platform is a square structure, and the central hole is a square through hole.
Preferably, the pair of first rail mechanisms and the pair of second rail mechanisms are arranged on four sides of the square in a one-to-one correspondence.
Preferably, the pair of first rail mechanisms and the pair of second rail mechanisms are arranged symmetrically with respect to the center of the base.
(III) advantageous effects
Compared with the prior art, the motion platform applicable to packaging of the optical communication device has the following beneficial effects that:
the two degrees of freedom of the platform are driven independently in parallel (the cross platform and the frame platform are driven independently and do not interfere with each other), and compared with the existing plane motion platform, the platform has the advantages of higher space utilization rate (motion with larger stroke can be realized under the same structure size), better motion precision, higher rigidity and larger motion stroke.
Advantageous effects of the invention not described herein will be described in the corresponding parts of the detailed description.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
fig. 1 is an exploded perspective view of a motion platform suitable for packaging an optical communication device according to an embodiment of the present invention;
fig. 2 is a perspective assembly view of a motion platform suitable for packaging an optical communication device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the cross-table and frame stand of an embodiment of the present invention;
fig. 4 is a schematic view of a rail mechanism according to an embodiment of the present invention, and first to fourth rail mechanisms are applicable;
fig. 5 is a schematic motion diagram of a motion platform suitable for packaging an optical communication device according to an embodiment of the present invention.
Description of reference numerals:
the device comprises a base 1, an object stage 2, a first guide rail mechanism 3, a second guide rail mechanism 4, a third guide rail mechanism 5, a fourth guide rail mechanism 6, a first driving device 7, a second driving device 8, a first ceramic strip 9, a first fixed block 10, a second ceramic strip 11, a second fixed block 12, a guide rail 13, a sliding block 14, a cross table 100, an upper plate 101, an upper plate 102, a lower plate 103, a connecting table 200, a frame table 201, a middle hole 202, a 4-edge frame 203, an upper groove 204 and a lower groove 204.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; the two elements may be mechanically or electrically connected, directly or indirectly connected through an intermediate medium, or connected through the inside of the two elements, or "in transmission connection", that is, connected in a power manner through various suitable manners such as belt transmission, gear transmission, or sprocket transmission. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 4, the present invention provides a motion platform suitable for an optical communication device package, which is particularly suitable as a high-rigidity large-stroke planar motion platform of an optical communication device package, but will fall within the scope of the present invention even if used for other purposes, the motion platform suitable for an optical communication device package includes a base 1, an object stage 2, a cross table 100 movably disposed on the base 1, a frame table 200 having a central hole 201 (more specifically, a structure may be that a 4-sided frame 202 encloses the central hole 201), a pair of first rail mechanisms 3 respectively guided in an x direction, and a pair of second rail mechanisms 4 respectively guided in a y direction, the cross table 100 includes an upper plate 101 and a lower plate 102 perpendicularly crossing each other, the upper plate 101 is located above the central hole 201, the lower plate 102 is located below the central hole 201, and the cross table 100 is not always in contact with the frame table 200 (and is moved or stopped and then moved out of the frame table 200), a pair of first rail mechanisms 3 are respectively connected below both ends of the frame block 200 so as to be movable in the x direction by the first rail mechanisms 3, a pair of second rail mechanisms 4 are respectively connected below both ends of the lower plate 102 so as to be movable in the y direction by the second rail mechanisms 4, a pair of third rail mechanisms 5 guided in the x direction are respectively connected above both ends of the upper plate 101, a pair of fourth rail mechanisms 6 guided in the y direction are respectively connected above both ends of the frame block 200, the stage 2 is connected above the third rail mechanisms 5 so as to be movable in the x direction, and the stage 2 is connected above the fourth rail mechanism 6 to be movable in the y direction, the moving platform for optical communication device packaging further includes a first driving means 7 for driving the frame block 200 to move in the x direction and a second driving means 8 for driving the cross table 100 to move in the y direction, which are provided on the base 1.
According to the embodiment of the present invention, the first driving device 7 and the second driving device 8 are a first driving motor and a second driving motor, respectively, the first driving motor is connected with the first ceramic bar 9, one end of the frame table 200 is provided with a first fixing block 10 for fixing the first ceramic bar 9, the second driving motor is connected with the second ceramic bar 11, and one end of the lower plate 102 is provided with a second fixing block 12 for fixing the second ceramic bar 11, but it is also possible to use other suitable driving devices, so long as various devices capable of realizing linear driving will fall within the scope of the present invention.
According to the embodiment of the present invention, the frame table 200 has upper grooves 203 above both ends in the y direction, both ends of the upper plate 101 extend into the upper grooves 203, the frame table 200 has lower grooves 204 below both ends in the x direction, and both ends of the upper plate 101 extend into the lower grooves 204. In a preferred embodiment, the middle of the upper plate 101 has a connecting platform 103 protruding downward, and the connecting platform 103 is connected to the upper side of the lower plate 102, so that the upper plate 101 and the lower plate 102 are further separated by a distance in the z direction, and the upper plate 101 and the lower plate 102 are convenient to escape from the frame platform 200.
According to the embodiment of the present invention, each of the first rail mechanism 3, the second rail mechanism 4, the third rail mechanism 5, and the fourth rail mechanism 6 includes a rail 13 and a slider 14 slidably coupled to the rail 13, the rail 13 of the first rail mechanism 3 is coupled to the base 1, the slider 14 of the first rail mechanism 3 is coupled to the frame 200, the rail 13 of the second rail mechanism 4 is coupled to the base 1, the slider 14 of the second rail mechanism 4 is coupled to the lower plate 102, the rail 13 of the third rail mechanism 5 is coupled to the stage 2, the slider 14 of the third rail mechanism 5 is coupled to the upper plate 101, the rail 13 of the fourth rail mechanism 6 is coupled to the frame 200, and the slider 14 of the fourth rail mechanism 6 is coupled to the stage 2. In a preferred embodiment, each of the first rail mechanism 3, the second rail mechanism 4, the third rail mechanism 5, and the fourth rail mechanism 6 includes a rail 13 and 2 sliders 14 slidably coupled to the rail 13, but the present invention is not limited thereto, and even if the number is not set to 2, for example, 1 slider 14 is provided on each rail 13, and 3 sliders 14 or more sliders 14 are provided.
In a preferred embodiment, the frame platform 200 has a square structure, and the central hole 201 is a square through hole. The pair of first rail mechanisms 3 and the pair of second rail mechanisms 4 are arranged on four sides of the square in a one-to-one correspondence. The pair of first rail mechanisms 3 and the pair of second rail mechanisms 4 are arranged symmetrically with respect to the center of the base 1. Of course, the arrangement in the preferred embodiment is not intended to limit the present invention, and even if other structural alternatives are made, the present invention will fall within the protection scope of the present invention if reasonable.
The specific action principle of the motion platform suitable for packaging the optical communication device is as follows:
the stage 2 moves in the y direction: the second driving device 8 drives the second ceramic strip 11 to move along the y direction, because the second ceramic strip 11 is fixedly connected to the second fixed block 12, the second fixed block 12 is fixedly connected to one end of the lower plate 102 of the cross table 100, the lower plate 102 of the cross table 100 is connected to the second guide rail mechanism 4, so the cross table 100 moves along the y direction through the guide of the second guide rail mechanism 4, and because the cross table 100 is connected to the third guide rail mechanism 5, and the third guide rail mechanism 5 is connected to the objective table 2, and the objective table 2 is connected to the fourth guide rail mechanism 6 and the fourth guide rail mechanism 6 is connected to the frame table 200, so the third guide rail mechanism 5 drives the objective table 2 to move along the y direction through the guide of the fourth guide rail mechanism 6 by the force along the y direction. In brief, the driving force is provided by the second driving device 8 and transmitted to the stage 2 through the second ceramic bar 11, the second fixed block 12, the cross table 100, and the third rail mechanism 5 in sequence.
Similarly, movement of the stage 2 in the x direction: the driving force is provided by the first driving device 7 and is transmitted to the stage 2 through the first ceramic bar 9, the first fixing block 10, the frame stand 200, and the fourth rail mechanism 6 in sequence, which will not be described in detail herein.
It should be added that the upper plate 101 of the cross table 100 moves within the upper groove 203 of the frame table 200 while the lower plate 102 of the cross table 100 moves within the lower groove 204 of the frame table 200 without movement interference. Figure 5 shows the stage moving to-x, -y maximum. The center of the stage at this time is at (-a, -b,0) relative to the initial state (0,0, 0). I.e. the travel of the planar motion stage in the x and y directions is 2a and 2b, respectively (2 a-2 b when the stage structure is symmetrical). The center of the object stage is always positioned within the square where the first guide rail mechanism 3 and the pair of second guide rail mechanisms 4 are positioned, and no overturning moment exists.
More specific configurations and advantages of the present invention are described as follows:
1. the first guide rail mechanism 3 and the second guide rail mechanism 4 are arranged in a square shape around the center of the base 1, so that the platform is stressed uniformly when loaded, and the stability of the platform is improved. Four corners of a square formed by the first guide rail mechanism 3 and the second guide rail mechanism 4 are provided with notches so as to avoid interference of sliding blocks on two adjacent guide rails during movement, and thus, the space utilization rate is increased. In the initial state, the upper layer guide rail mechanisms (the third guide rail mechanism 5 and the fourth guide rail mechanism 6) and the lower layer guide rail mechanisms (the first guide rail mechanism 3 and the second guide rail mechanism 4) are overlapped in projection along the z direction.
2. The driving motor is provided with a height difference when being installed on the base, so that the interference between the ceramic strips and the frame table 200 caused by the movement of the platform is avoided, and the interference is also the reason that the first fixing block 10 and the second fixing block 12 have the same function and are different in structure.
3. A certain thickness is present between the upper plate 101 and the lower plate 102 of the cross table 100 for preventing movement interference between the cross table 100 and the frame table 200 during movement.
4. The cross table 100 and the frame table 200 are preferably of an integrated structure, simple in structure and easy to machine, the installation process is simplified, and the influence of installation errors on the movement precision is reduced.
5. The upper-layer guide rail mechanisms (the third guide rail mechanism 5 and the fourth guide rail mechanism 6) are installed inconsistently, so that the guide rail in the y-axis direction does not interfere with the guide rail mechanism in the x-axis direction in the moving process, and meanwhile, the guide rail on the y-axis defense line has enough installation positions, so that the structure is more stable.
6. The stress direction of the guide rail mechanism used by the moving platform is consistent with the load direction of the objective table 2, which is beneficial to prolonging the service life of the guide rail sliding block set. Particularly, the lower-layer guide rail mechanism is arranged in a square mode around the center of the base 1, so that the platform is stressed uniformly when loaded, and the stability of the platform is improved. After the lower guide rail is installed, the four corners of the formed square are provided with notches so as to avoid the interference of the sliding blocks on the two adjacent guide rails during movement, thereby increasing the space utilization rate.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. A motion platform suitable for packaging an optical communication device, the motion platform suitable for packaging the optical communication device comprises a base, an object stage, a cross table movably arranged on the base, a frame platform with a central hole, a pair of first guide rail mechanisms respectively guided along an x direction and a pair of second guide rail mechanisms respectively guided along a y direction, the cross table comprises an upper plate and a lower plate which are vertically crossed with each other, the upper plate is positioned above the central hole, the lower plate is positioned below the central hole, the cross table is not contacted with the frame platform all the time, the pair of first guide rail mechanisms are respectively connected below two ends of the frame platform so as to be capable of moving along the x direction through the first guide rail mechanisms, the pair of second guide rail mechanisms are respectively connected below two ends of the lower plate so as to be capable of moving along the y direction through the guide rail mechanisms, the utility model discloses a light communication device encapsulation, including frame platform, object stage, base, frame platform, object stage, frame platform, object stage, frame platform, object stage, frame platform, frame.
2. The motion platform suitable for packaging an optical communication device according to claim 1, wherein the first driving device and the second driving device are a first driving motor and a second driving motor, respectively, the first driving motor is connected with a first ceramic strip, one end of the frame platform is provided with a first fixing block for fixing the first ceramic strip, the second driving motor is connected with a second ceramic strip, and one end of the lower plate is provided with a second fixing block for fixing the second ceramic strip.
3. The motion platform for packaging optical communication devices according to claim 1, wherein the frame table has upper grooves above the two ends of the frame table along the y-direction, the two ends of the upper plate extend into the upper grooves, the frame table has lower grooves below the two ends of the frame table along the x-direction, and the two ends of the upper plate extend into the lower grooves.
4. The motion platform suitable for packaging optical communication devices according to claim 1, wherein the middle portion of the upper plate has a connection platform protruding downward, and the connection platform is connected to the upper portion of the lower plate.
5. The motion platform of claim 1, wherein the first, second, third and fourth track mechanisms each comprise a track and a slider slidably connected to the track, the track of the first track mechanism is connected to the base, the slider of the first track mechanism is connected to the frame, the track of the second track mechanism is connected to the base, the slider of the second track mechanism is connected to the lower plate, the track of the third track mechanism is connected to the stage, the slider of the third track mechanism is connected to the upper plate, the track of the fourth track mechanism is connected to the frame, and the slider of the fourth track mechanism is connected to the stage.
6. The motion platform of claim 1, wherein the first, second, third, and fourth rail mechanisms each comprise a rail and 2 sliders slidably coupled to the rail.
7. The motion platform of any one of claims 1 to 6, wherein the frame block has a square structure, and the central hole is a square through hole.
8. The motion platform suitable for packaging optical communication devices according to any one of claims 1 to 6, wherein the pair of first rail mechanisms and the pair of second rail mechanisms are arranged on four sides of a square in a one-to-one correspondence.
9. The motion platform adapted for use with an optical communication device package of claim 8, wherein the pair of first rail mechanisms and the pair of second rail mechanisms are symmetrically disposed about a center of the base.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010610950.1A CN111761552B (en) | 2020-06-30 | 2020-06-30 | Motion platform suitable for optical communication device encapsulation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010610950.1A CN111761552B (en) | 2020-06-30 | 2020-06-30 | Motion platform suitable for optical communication device encapsulation |
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| CN111761552A true CN111761552A (en) | 2020-10-13 |
| CN111761552B CN111761552B (en) | 2022-09-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114669983A (en) * | 2022-03-09 | 2022-06-28 | 厦门聚视智创科技有限公司 | Mechanical mobile phone middle frame fixed-point movement mechanism |
| CN115008344A (en) * | 2022-06-08 | 2022-09-06 | 中国科学院宁波材料技术与工程研究所 | Robot tail end constant force floating device and polishing system |
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