The mounting structure and the platform device using the mounting structure

Abstract

This invention relates to a mounting structure and a platform device using the mounting structure. The mounting structure includes: a base; a carrier for holding a workpiece; a spherical bearing disposed between the base and the carrier, the carrier being mounted on the spherical bearing and movable relative to the base; and a magnetic attraction unit comprising a plurality of first magnetic attractors and a plurality of second magnetic attractors that can attract each other, the first magnetic attractors being disposed on the base and the second magnetic attractors being disposed on the carrier, the magnetic attraction unit constraining the rotation of the carrier relative to the base; thereby improving the situation where prior art cannot pick up or excessively presses on the workpiece.

Description

The mounting structure and the platform device using the mounting structure Technical Field

[0001] This invention relates to a mounting structure and a platform device using the mounting structure, and more particularly to an adjustable mounting structure and a platform device using the mounting structure. Prior Technology

[0002] In the field of optical communication, there is often a need to mount a first element on a second element. During the mounting process, the first element and the second element are usually placed on a first platform and a second platform respectively. Then, a driveable holding mechanism picks up the first element from the first platform and moves it to the second platform to place the first element on the second element. Related technologies can be found, for example, in patent number M674541, "Element Coupling Device".

[0003] However, during the process of the holding mechanism picking up the first component from the first platform, due to the tolerance of the first component itself or the tolerance of the holding mechanism itself, the holding mechanism may fail to pick up the first component or over-press the first component. Failure to pick up the first component will affect the equipment's production capacity, while over-pressing the first component will cause damage to the first component or cause the first component to not be held in the preset position of the holding mechanism. It is evident that the prior art still has room for improvement. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide a mounting structure that can improve upon at least one drawback of the prior art.

[0005] Another objective of this work is to provide a platform device using the mounting structure.

[0006] According to the intended purpose of this invention, the mounting structure includes: a base; a carrier for holding a workpiece; a spherical bearing disposed between the base and the carrier, the carrier being mounted on the spherical bearing and movable relative to the base; and a magnetic unit comprising a plurality of first magnetic elements and a plurality of second magnetic elements that can attract each other, the first magnetic elements being disposed on the base and the second magnetic elements being disposed on the carrier, the magnetic unit constraining the rotation of the carrier relative to the base.

[0007] According to another purpose of this invention, a platform device is used with the aforementioned mounting structure. The platform device has: a positioning structure, a base and an elastic unit; the base has a base chamber, the mounting structure is mounted on the base chamber, and the elastic unit can constrain the translation of the base relative to the base.

[0008] The present invention provides a mounting structure and a platform device using the mounting structure. The carrier of the mounting structure can adaptively move relative to the base to make angular adjustments, and the mounting structure can also adaptively move relative to the positioning structure to make horizontal adjustments, thereby improving the situation where the prior art could not pick up or excessively press the workpiece. Simple Explanation of the Diagram

[0009] Figure 1 is a perspective view illustrating the mounting structure in this embodiment. Figure 2 is a sectional view illustrating the I-I section of Figure 1 and the workpiece. Figure 3 is an exploded three-dimensional view illustrating the configuration relationship between the first and second magnetic components of the mounting structure. Figure 4 is a schematic diagram illustrating the use of this mounting structure in a platform device. Figure 5 is a sectional view illustrating section II–II of Figure 4. Figure 6 is a partial sectional view illustrating the configuration relationship between the mounting structure and the positioning structure. Figure 7 is an exploded three-dimensional view illustrating the configuration relationship between the base and a plurality of elastic elements. Implementation

[0010] Please refer to Figure 1. In this embodiment of the invention, the horizontal direction is defined as a first direction d1, the vertical direction as a second direction d2, and the vertical direction as a third direction d3. The first direction d1, the second direction d2, and the third direction are orthogonal to each other.

[0011] Please refer to Figures 1 and 2. This embodiment of the invention can be illustrated using the mounting structure 1 shown in the figures as an example. This mounting structure 1 is suitable for mounting a workpiece W, which may be, for example, but is not limited to, a workpiece that can be mounted on a photonic integrated circuit. The mounting structure 1 is provided with: A base A; A carrier B is provided for placing the workpiece W; A spherical bearing C is disposed between the base A and the carrier B, the carrier B being disposed on the spherical bearing C and movable relative to the base A; A magnetic unit D is provided with a plurality of first magnetic elements D1 and a plurality of second magnetic elements D2 that can attract each other. The first magnetic elements D1 are provided on the base A, and the second magnetic elements D2 are provided on the carrier B. The magnetic unit D can constrain the rotation of the carrier B relative to the base A.

[0012] Please refer to Figures 1 and 2. When the carrier B is not yet constrained by the magnetic unit D, the carrier B can rotate relative to the base A around a first axis L1, a second axis L2, and a third axis L3. The first axis L1 is parallel to the first direction d1, the second axis L2 is parallel to the second direction d2, and the third axis L3 is parallel to the third direction d3. The magnetic unit D can constrain the carrier B to rotate around the third axis L3. In this embodiment, "constraint" does not completely restrict movement; the carrier B can still move slightly relative to the base A.

[0013] Please refer to Figures 1, 2, and 3. A plurality of the first magnetic attractors D1 are symmetrically arranged in pairs on the base A. The first magnetic attractors D1 are symmetrically arranged such that, with the base A bounded by the first axis L1 or the second axis L2, one first magnetic attractor D1 is located on one side of the first axis L1 or the second axis L2, and another first magnetic attractor D1 is located on the other side of the first axis L1 or the second axis L2. In this embodiment, the number of first magnetic attractors D1 is four, arranged in a ring around the perimeter of the base A. A plurality of the second magnetic components D2 are symmetrically arranged in pairs on the carrier B. The second magnetic components D2 are symmetrically arranged such that, with the first axis L1 or the second axis L2 as the boundary, one second magnetic component D2 is provided on one side of the first axis L1 or the second axis L2, and another second magnetic component D2 is provided on the other side of the first axis L1 or the second axis L2. In this embodiment, there are four second magnetic components D2, each corresponding to one of the first magnetic components D1. Both the first magnetic attractor D1 and the second magnetic attractor D2 are magnets and attract each other with opposite poles, so that the magnetic attractor unit D can constrain the carrier B to rotate relative to the base A about the third axis L3. Since the first magnetic attractor D1 and the second magnetic attractor D2 are respectively symmetrically arranged, the magnetic attractor unit D can also provide a force to maintain a preset distance between an upper surface A0 of the base A and a lower surface B0 of the carrier B, so that the upper surface A0 and the lower surface B0 remain parallel.

[0014] Please refer to Figures 2 and 3. The carrier B is provided with a movable member B1 and a mounting fixture B2 provided on the movable member B1. The movable member B1 is provided with a seat portion B11 for mounting the mounting fixture B2 and a rod portion B12 provided on the spherical bearing C. The lower surface B0 is located on the side of the seat portion B11 opposite to the mounting fixture B2. The movable part B1 is provided with an air passage B13 that connects the seat part B11 and the rod part B12. The air passage B13 can be connected to a negative pressure unit 2 and generate negative pressure suction. The mounting fixture B2 is provided with at least one suction hole B21 for adsorbing the workpiece W, a receiving groove B22 for placing the workpiece W, and an air chamber B23 that connects to the air passage B13. The air chamber B23 is located on the side of the mounting fixture B2 opposite to the receiving groove B22. The receiving groove B22 is connected to the air chamber B23 through the suction hole B21. The spherical bearing C has a spherical shaft portion C1 and a bushing C2 for pivoting the shaft portion C1. The spherical bearing C is disposed in a base chamber A1 of the base A. The bottom of the base A has a base through hole A2 that communicates with the base chamber A1. The movable member B1 is disposed on the shaft portion C1 by the rod portion B12 and passes through the base through hole A2.

[0015] Please refer to Figure 4. This mounting structure 1 is used in a platform device 10.

[0016] Please refer to Figures 5 and 6. The platform device 10 is equipped with: A positioning structure 3 is provided with a base E and an elastic unit F; the base E is provided with a base chamber E1, the mounting structure 1 is provided with the base A in the base chamber E1, and the elastic unit F can constrain the translation of the base A relative to the base E.

[0017] Please refer to Figures 6 and 7. The elastic element F constrains the translation of the base A relative to the platform E by restricting the base A from moving on the plane formed by the first direction d1 and the second direction d2. However, in this embodiment, the "constraint" does not completely restrict the movement; the base A can still move slightly relative to the platform E. The elastic unit F is provided with a plurality of elastic elements F1 between the base A and the platform E. The elastic unit F provides a force to maintain a preset distance between an outer side A3 of the base A and an inner side E2 of the platform E. The pedestal E is provided with a plurality of mounting slots E3, which are arranged in a ring around the periphery of the pedestal chamber E1. Each mounting slot E3 can accommodate one elastic element F1, which may be, for example, but not limited to, a blade spring. The elastic element F1 is supported between the mounting slot E3 and the outer side A3 of the base A, providing a force to maintain the base A in the middle position of the pedestal chamber E1. The positioning structure 3 is also provided with a cover plate G, which can cover each mounting slot E3 and press against the top of each elastic element F1 to prevent the elastic element F1 from detaching from the mounting slot E3 from above. The cover plate G can also press against the top of each first magnetic member D1 to prevent the first magnetic member D1 from detaching from the base A due to mutual attraction with the second magnetic member D2 over a long period of time. A plurality of elastic elements F1 are symmetrically arranged in pairs on the pedestal E. The elastic elements F1 are symmetrically arranged such that the pedestal E is bounded by the first axis L1 (Fig. 1) or the second axis L2 (Fig. 1), with one elastic element F1 on one side of the first axis L1 or the second axis L2, and another elastic element F1 on the other side of the first axis L1 or the second axis L2. In this embodiment, there are six elastic elements F1 arranged in a ring around the perimeter of the pedestal E. The inner side E2 of the base E is located in the base chamber E1. The bottom of the base E is provided with a base through hole E4 that connects to the base chamber E1 for the air passage of the negative pressure unit 2 (Figure 2).

[0018] Please refer to Figures 5 and 6. The platform device 10 is also provided with a frame 4 and a lifting component 5 disposed on the frame 4. The frame 4 includes a box body H and a support frame I supporting the box body H. The box body H includes a chamber H1, a cover H2 covering the chamber H1, an upper opening H3 located on the cover H2 and communicating with the chamber H1, a lower opening H4 communicating with the chamber H1, and a bushing H5 located in the chamber H1. The mounting structure 1 and the positioning structure 3 are located in the chamber H1. The mounting fixture B2 of the mounting structure 1 can be exposed through the upper opening H3. The positioning structure 3 is slidably connected to the bushing H5 by the base E. The bushing H5 can be, for example, but not limited to, an unlubricated bushing. The lifting assembly 5 is located on the support frame I and below the box body H. The lifting assembly 5 is provided with a driver J1 and a push rod assembly J2 driven by the driver J1. One end of the push rod assembly J2 is connected to the driver J1, and the other end can pass through the lower opening H4 and touch the bottom of the platform E. The driver J1 can be, for example, but not limited to, a pneumatic cylinder. In the preset state, the driver J1 of the lifting assembly 5 drives the push rod assembly J2 to lift the positioning structure 3 upward and drive the mounting structure 1 to move upward, so that the movable member B1 of the carrier B abuts the lower surface of the box cover H2 with its upper surface.

[0019] In this embodiment, the workpiece W can be picked up and placed by a holder. The holder can hold the workpiece W by means of magnetic adsorption or negative pressure adsorption, for example, but not limited to magnetic adsorption. The holder can be driven by a multi-axis drive mechanism of a gantry mechanism to move in the first direction d1, the second direction d2, and the third direction d3. When the retainer wants to pick up the workpiece W that has been placed on the mounting structure 1, the retainer can be driven to move downward and press against the workpiece W, thereby causing the mounting structure 1 and the positioning structure 3 to move downward, so that a gap is created between the upper surface of the movable member B1 and the lower surface of the box cover H2; After a gap is created between the upper surface of the movable part B1 and the lower surface of the box cover H2, the carrier B can rotate relative to the base A about the first axis L1 and the second axis L2, so that the carrier B can drive the workpiece W to actively adjust its angle in accordance with the posture of the retainer; At this time, the mounting structure 1 can also move relative to the positioning structure 3 on the plane formed by the first direction d1 and the second direction d2, so that the mounting structure 1 can drive the workpiece W to actively adjust its posture to match the holder. When the holder intends to place the workpiece W onto the mounting structure 1, the holder can be driven to move downwards and place the workpiece W into the receiving groove B22 of the mounting fixture B2, thereby causing the mounting structure 1 and the positioning structure 3 to move downwards, so that a gap is created between the upper surface of the movable member B1 and the lower surface of the box cover H2; After a gap is created between the upper surface of the movable part B1 and the lower surface of the box cover H2, the carrier B can rotate relative to the base A about the first axis L1 and the second axis L2, so that the carrier B can actively adjust its angle to match the posture of the workpiece W; At this time, the mounting structure 1 can also move relative to the positioning structure 3 on the plane formed by the first direction d1 and the second direction d2, so that the mounting structure 1 can actively adjust to the posture of the workpiece W for horizontal adjustment; The gap between the upper surface of the movable member B1 and the lower surface of the box cover H2 is less than 1 mm, the angle adjustment range of the carrier B is approximately ±3°, and the horizontal adjustment range of the mounting structure 1 is approximately ±0.5 mm.

[0020] The present invention relates to a mounting structure and a platform device using the mounting structure. The carrier B of the mounting structure 1 can adaptively move relative to the base A to make angular adjustments, and the mounting structure 1 can also adaptively move relative to the positioning structure 3 to make horizontal adjustments, thereby improving the situation where the prior art could not pick up or excessively press the workpiece.

[0021] However, the above description is only a preferred embodiment of this invention and should not be construed as limiting the scope of this invention. Any simple equivalent changes and modifications made in accordance with the scope of the patent application and the description of this invention shall still fall within the scope of this invention.

[0022] 1: Loading Structure 2: Negative pressure unit 3: Positioning Structure 4: Frame 5: Lifting Components 10: Platform device A: Base A0: Upper surface A1: Base Chamber A2: Base through hole A3: Outer side B: Carrier B0: Lower surface B1: Movable component B11: Seat B12: Bar section B13: Airway B2: Mounting fixture B21: Suction hole B22: Container B23: Air chamber C: Spherical bearing C1: Shaft C2: Bushing D: Magnetic unit D1: First magnetic component D2: Second magnetic component E:pedestal E1: Pedestal room E2: Inner side E3: Mounting slot E4: pedestal through hole F: Elastic unit F1: Elastic element G: Cover plate H: Box H1: Chamber H2: Box lid H3: Top opening H4: Bottom opening H5: Bushing I: Support frame J1: Driver J2: Pusher assembly L1: First axis L2: Second axis L3: Third Axis W: Workpiece d1: First direction d2: Second direction d3:Third direction

Claims

1. A mounting structure comprising: a base; a carrier for mounting a workpiece; a spherical bearing disposed between the base and the carrier, the carrier being mounted on the spherical bearing and movable relative to the base; and a magnetic attraction unit comprising a plurality of first magnetic attractors and a plurality of second magnetic attractors that are mutually attractive, the first magnetic attractors being disposed on the base and the second magnetic attractors being disposed on the carrier, the magnetic attraction unit constraining the rotation of the carrier relative to the base.

2. The mounting structure as described in claim 1, wherein, The carrier can rotate relative to the base about a first axis, a second axis, and a third axis. The first axis is parallel to a first direction, the second axis is parallel to a second direction, and the third axis is parallel to a third direction. The magnetic attraction unit can constrain the carrier to rotate about the third axis.

3. The mounting structure as described in claim 1, wherein, Both the first magnetic component and the second magnetic component are magnets.

4. The mounting structure as described in claim 1, wherein, The plurality of the first magnetic components on the base are symmetrically arranged in pairs, and the plurality of the second magnetic components on the carrier are symmetrically arranged in pairs.

5. The mounting structure as described in claim 4, wherein, The magnetic unit provides a force that maintains a preset distance between an upper surface of the base and a lower surface of the carrier.

6. The mounting structure as described in claim 1, wherein, The carrier has a movable member and a mounting fixture provided on the movable member. The movable member has a seat portion for mounting the mounting fixture and a rod portion provided on the spherical bearing.

7. The mounting structure as described in claim 6, wherein, The movable part is provided with an air passage connecting the seat and the rod, and the mounting fixture is provided with a suction hole that can adsorb the workpiece.

8. The mounting structure as described in claim 7, wherein, The fixture is provided with a trough for placing the workpiece and an air chamber that communicates with the air passage. The trough is connected to the air chamber through the suction hole.

9. A stage device using a mounting structure as described in any one of claims 1 to 8, the stage device comprising: a positioning structure having a base and an elastic unit; the base having a base chamber, the mounting structure being disposed on the base in the base chamber, the elastic unit being capable of constraining the translation of the base relative to the base.

10. The stage device as described in claim 9, wherein, The elastic unit has a plurality of elastic elements between the base and the platform. The elastic unit provides a force to maintain a preset distance between an outer side of the base and an inner side of the platform, the inner side being located in the platform chamber.

11. The stage device as described in claim 10, wherein, The pedestal has a plurality of mounting slots, each of which is used to install one of the elastic elements. The plurality of elastic elements are symmetrically arranged in pairs on the pedestal and provide a force to maintain the pedestal in the middle position of the pedestal chamber.

12. The stage device as described in claim 9, wherein, The mounting structure and the positioning structure are located in a chamber of a box, which has an upper opening for the mounting structure to be exposed.

13. The stage device as described in claim 9, wherein, The mounting structure and the positioning structure are located in a chamber of a box body. The box body has a lower opening through which a push rod assembly of a lifting component passes and touches the base.

14. The stage device as described in claim 13, wherein, The box body has a bushing in a chamber, and the positioning structure is slidably connected between the base and the bushing.

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