Optical adjusting jig for COC test platform

Abstract

The utility model discloses an optical adjusting jig for a COC test platform, which comprises a bottom plate, a three-axis adjusting platform and a support frame are arranged above the bottom plate, the three-axis adjusting platform is arranged on the bottom plate, the support frame is of an L-shaped structure, the bottom of the support frame is connected with the three-axis adjusting platform, and the bottom of the support frame is connected with the three-axis adjusting platform. Meanwhile, a clamping mechanism is arranged at the other end of the supporting frame, and the three-axis adjusting platform and the supporting frame are matched to be used for adjusting the spatial position and the inclined state of the clamping mechanism; the clamping mechanism is used for clamping the single-fiber collimator; the three-axis adjusting platform and the supporting frame are arranged, a modularized split type structure is adopted, all axis driving units are physically isolated, independent control over X / Y / Z translation and theta y / theta z axis rotation is achieved, and coupling errors during multi-axis linkage are avoided.

Description

Technical Field

[0001] This utility model relates to the field of fixtures, specifically an optical adjustment fixture for a COC testing platform. Background Technology

[0002] COC testing aims to accurately analyze the complex system of chips and cells, and the accuracy and reliability of its test results directly depend on the performance of the optical system.

[0003] There are many types of optical systems used for COC testing. For example, a Chinese patent with publication number CN222393752U discloses a laser COC testing device and system. The laser COC testing device includes a base plate, a stage, and a CCD module, an integrating sphere module, and multiple probe modules mounted on the base plate. The stage is used to support the COC sample to be tested. Each probe module can be adjusted in multiple directions to fit against the COC sample to be tested and to supply power to the COC sample. The CCD module can be adjusted in multiple directions to acquire image data of the COC sample to be tested. The integrating sphere module can be adjusted in multiple directions to receive the laser emitted by the COC sample to be tested.

[0004] Although the system provided by the aforementioned patent can perform optical detection, the integrating sphere module is not equipped with a corresponding adjustment mechanism. When it receives the laser emitted by the COC sample to be tested, its state can only be adjusted by manually holding it or moving it slightly.

[0005] In addition, some optical systems require the use of collimating optical fibers to receive the laser light from the sample under test. To align the collimating optical fiber receiving the laser light with the light emission position of the COC chip, the incident angle and distance between the light source and the optical components of the sample under test need to be frequently adjusted. This requires a three-axis stage (for manual adjustment of x / y / z) to hold the single-fiber collimator. However, three-axis adjustment is prone to coupling errors, such as horizontal movement causing vertical offset, requiring repeated calibration. This results in a long adjustment time for the three-axis stage, leading to low efficiency. Furthermore, the structures used to hold the single-fiber collimator are mostly fixed, meaning that the structure cannot be compatible with single-fiber collimators of different sizes, and changing the clamps increases costs. Utility Model Content

[0006] The purpose of this invention is to provide an optical adjustment fixture for a COC testing platform, which aims to improve the problem of inconvenient adjustment of the module receiving the laser from the object under test.

[0007] To achieve the aforementioned objectives, this invention is implemented as follows:

[0008] An optical adjustment fixture for a COC testing platform is provided, comprising a base plate, a three-axis adjustment platform and a support frame disposed on the base plate, the three-axis adjustment platform being mounted on the base plate, the support frame being configured as an L-shaped structure, with the bottom of the support frame connected to the three-axis adjustment platform, and a clamping mechanism disposed at the other end of the support frame, the three-axis adjustment platform and the support frame cooperating to adjust the spatial position and tilt state of the clamping mechanism; the clamping mechanism clamps a single-fiber collimator.

[0009] Preferably, the support frame includes a transition plate, a vertical rod, and a horizontal rod. A third flange clamp is provided on the transition plate, the bottom of the vertical rod is inserted into the third flange clamp, and a second flange clamp is provided on the top of the vertical rod. The second flange clamp is sleeved on the end of the horizontal rod, and a clamping mechanism is provided at the other end of the horizontal rod.

[0010] Preferably, the third flange clamp is configured as a cylindrical structure, and the bottom of the third flange clamp is bolted to the adapter plate. Meanwhile, a dividing gap is provided on the side wall of the third flange clamp, and the width of the dividing gap is adjusted by bolts.

[0011] Preferably, the second flange clamp is configured as a cuboid structure, and two through holes are vertically provided on the second flange clamp. Dividing gaps are vertically provided at both ends of the second flange clamp. The two dividing gaps are connected to and aligned with the two through holes one by one, and the width of the dividing gaps is adjusted by bolts. At the same time, the ends of the vertical rod and the horizontal rod that are close to each other are inserted into the two through holes respectively.

[0012] Preferably, the clamping mechanism includes a main board and a clamping plate. The clamping plate is located at the end of the main board, and splicing grooves are provided on the side walls of the clamping plate and the main board that are close to each other. The end face of the splicing groove is set as a V-shaped structure, and a single fiber collimator is installed through the space formed by the two splicing grooves.

[0013] Preferably, a connecting bolt is provided through the clamping plate, and the end of the connecting bolt is threaded into the main board; a spring is provided on the side of the clamping plate away from the main board, which is sleeved on the connecting bolt and is in a compressed state.

[0014] Preferably, the main board has a channel, a fastening bolt is inserted through the channel, and the end of the crossbar is aligned with the channel and fits the main board, while the threaded end of the fastening bolt is inserted into the crossbar.

[0015] Preferably, the three-axis adjustment platform includes a first adjustment plate, a second adjustment plate, a third adjustment plate, and a fixed plate arranged sequentially from top to bottom. The first adjustment plate, the second adjustment plate, and the third adjustment plate move relative to the fixed plate on the Z-axis, X-axis, and Y-axis, respectively.

[0016] Preferably, a first slot and a first plate are respectively provided on the side of the first adjusting plate and the second adjusting plate that are close to each other; a second slot and a second plate are respectively provided on the side of the second adjusting plate and the third adjusting plate that are close to each other; a third slot and a third plate are respectively provided on the side of the third adjusting plate and the fixed plate that are close to each other; the end faces of the slots and plates can be configured as trapezoidal or convex structures; the first slot and the first plate are arranged along the Z-axis direction, the second slot and the second plate are arranged along the X-axis direction, and the third slot and the third plate are arranged along the Y-axis direction.

[0017] Preferably, a first adjusting rod, a second adjusting rod, and a third adjusting rod are connected to the second adjusting plate, the third adjusting plate, and the fixed plate by a first flange clamp; a right-angle plate is hinged to the side of the first clamping plate, one end of the right-angle plate is in contact with the first adjusting rod, and the other end of the right-angle plate is in contact with the first adjusting plate; a driving plate is provided on both the second adjusting plate and the third adjusting plate, and the ends of the second adjusting rod and the third adjusting rod are connected to their paired driving plates.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model is equipped with a three-axis adjustment platform and support frame, and adopts a modular split structure. The drive units of each axis are physically isolated, realizing independent control of X / Y / Z translation and θy / θz axis rotation, avoiding coupling errors when multiple axes are linked.

[0020] 2. This utility model is equipped with a main board and a clamping plate, and V-shaped positioning grooves are provided on the side walls of the main board and the clamping plate. Springs are fitted on the bolts connecting the main board and the clamping plate. Under the condition of stable installation of the single fiber collimator, it can adapt to single fiber collimators of different sizes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a first structural schematic diagram of the three-axis adjustment platform of this utility model;

[0023] Figure 3 This is a schematic diagram of the second structure of the three-axis adjustment platform of this utility model;

[0024] Figure 4 This is a structural schematic diagram of the support frame and clamping mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the clamping mechanism of this utility model.

[0026] In the diagram: 1. Base plate; 2. Three-axis adjustment platform; 21. First adjustment plate; 211. First slot; 212. Lifting block; 22. Second adjustment plate; 221. Second slot; 222. First adjustment rod; 223. Right-angle plate; 224. First clamping plate; 23. Third adjustment plate; 231. Third slot; 232. Driving plate; 233. Second adjustment rod; 234. First flange clamp; 235. Second clamping plate; 24. Fixing plate; 241. Third clamping plate; 242. Third adjustment rod; 3. Support frame; 31. Horizontal bar; 32. Second flange clamp; 33. Dividing gap; 34. Vertical bar; 35. Third flange clamp; 36. Adapter plate; 4. Clamping mechanism; 41. Main plate; 42. Fastening bolt; 43. Clamping plate; 44. Connecting bolt; 45. Spring; 46. Splicing groove. Detailed Implementation

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0029] To facilitate the adjustment of the state of the single-fiber collimator during COC testing, this embodiment provides a fixture for the single-fiber collimator. This fixture supports the single-fiber collimator and allows it to be stably mounted on the COC testing platform. Furthermore, the state of the single-fiber collimator can be adjusted as needed, thus changing the current situation where the single-fiber collimator is inconvenient to adjust.

[0030] like Figure 1 As shown, the optical adjustment fixture for the COC testing platform provided in this solution includes a base plate 1, a three-axis adjustment platform 2, a support frame 3, and a clamping mechanism 4. The three-axis adjustment platform 2 is fixedly installed on the base plate 1, and the support frame 3 is installed on the three-axis adjustment platform 2. Therefore, the support frame 3 can be adjusted in space by controlling the three-axis adjustment platform 2. Since the support frame 3 is self-adjustable, and the clamping mechanism 4 is installed at the end of the support frame 3 and clamps the single-fiber collimator, the tilt state of the single-fiber collimator can be adjusted by adjusting the spatial position of the single-fiber collimator, so that the single-fiber collimator is directly facing the object under test to receive the laser emitted by the object under test, and the single-fiber collimator can be controlled to stably complete the test.

[0031] When using the above-mentioned fixture, install the fixture on the COC test platform and place it near the test object placement platform.

[0032] like Figure 2 , Figure 3 As shown, to enable adjustment of the spatial position of the single-fiber collimator, the three-axis adjustment platform 2 includes a first adjustment plate 21, a second adjustment plate 22, a third adjustment plate 23, and a fixed plate 24 arranged sequentially from top to bottom. On the side of the first adjustment plate 21 and the second adjustment plate 22 that are close to each other, there are respectively a first slot 211 and a first clamping plate 224 that are mutually adapted. On the side of the second adjustment plate 22 and the third adjustment plate 23 that are close to each other, there are respectively a second slot 221 and a second clamping plate 235 that are mutually adapted. On the side of the third adjustment plate 23 and the fixed plate 24 that are close to each other, there are respectively a third slot 231 and a third clamping plate 241 that are mutually adapted. The slots and clamping plates are designed to ensure stable connection between adjacent adjustment plates and facilitate relative movement of adjacent adjustment plates under external force. Therefore, the end faces of the slots and clamping plates are designed with trapezoidal structures, convex structures, etc., to ensure stable connection between adjacent adjustment plates. To facilitate the adjustment of adjacent adjustment plates, the contact surfaces of the plates and slots can be polished smooth, or even lubricated.

[0033] like Figure 3 As shown, in order to control the movement of the first adjusting plate 21, the second adjusting plate 22, and the third adjusting plate 23 in different directions, the first slot 211 and the first plate 224 are set along the Z-axis, the second slot 221 and the second plate 235 are set along the X-axis, and the third slot 231 and the third plate 241 are set along the Y-axis. Therefore, the first adjusting plate 21, the second adjusting plate 22, and the third adjusting plate 23 can be controlled to move on the Z / X / Y axes under the action of external force, so as to achieve the initial adjustment of the spatial position of the support frame 3.

[0034] like Figure 3 As shown, in addition, a first adjusting rod 222, a second adjusting rod 233, and a third adjusting rod 242 are connected to the second adjusting plate 22, the third adjusting plate 23, and the fixed plate 24 via a first flange clamp 234, or a first adjusting rod 222, a second adjusting rod 233, and a third adjusting rod 242 are threadedly connected to the second adjusting plate 22, the third adjusting plate 23, and the fixed plate 24. In short, the adjusting rods should be easy to move.

[0035] like Figure 3As shown, to control the movement of the first adjusting plate 21 on the Z-axis, a right-angle plate 223 is hinged to the side of the first clamping plate 224. The opening of the right-angle plate 223 faces downward, and one end of the right-angle plate 223 contacts the first adjusting rod 222. At the same time, the other end of the right-angle plate 223 contacts the lifting block 212 below the first adjusting plate 21. Therefore, while controlling the movement of the first adjusting rod 222, the right-angle plate 223 can be forced to rotate around the axis, thereby controlling the lifting and lowering of the first adjusting plate 21. To control the movement of the second adjusting plate 22 and the third adjusting plate 23 on the X / Y axes, a driving plate 232 is provided on both the second adjusting plate 22 and the third adjusting plate 23. The ends of the second adjusting rod 233 and the third adjusting rod 242 are connected to their paired driving plates 232. Therefore, while the second adjusting plate 22 and the third adjusting plate 23 are moving, the movement of the second adjusting plate 22 and the third adjusting plate 23 in their respective directions can be controlled.

[0036] like Figure 4 As shown, in order to further adjust the state of the single-fiber collimator, the support frame 3 includes an adapter plate 36, a vertical rod 34, and a horizontal rod 31. A third flange clamp 35 is provided on the adapter plate 36. The bottom of the vertical rod 34 is inserted into the third flange clamp 35, and a second flange clamp 32 is provided on the top of the vertical rod 34. The second flange clamp 32 is sleeved on the end of the horizontal rod 31. Under the action of the flange clamp, the vertical rod 34 and the adapter plate 36, and the horizontal rod 31 and the vertical rod 34 can be stably connected. The flange clamp can also be loosened to control the vertical rod 34 and the horizontal rod 31 to rotate around their respective central axes, thereby realizing the adjustment of the tilt angle of the single-fiber collimator.

[0037] As can be seen from the above description, the three-axis adjustment platform 2 and the support frame 3 work together to achieve independent control of X / Y / Z translation and θy / θz axis rotation, which can avoid coupling errors when multi-axis linkage occurs.

[0038] like Figure 4 As shown, in order to realize the rotation of the vertical rod 34 around the axis, the third flange clamp 35 is set as a cylindrical structure, and the bottom of the third flange clamp 35 is connected to the adapter plate 36 by bolts. At the same time, a dividing gap is provided on the side wall of the third flange clamp 35, and a bolt is installed through the dividing gap. Therefore, the width of the dividing gap can be adjusted by rotating the bolt, which provides convenience for controlling the rotation of the vertical rod 34 around the axis.

[0039] like Figure 4 As shown, in order to enable the crossbar 31 to rotate around the axis, the second flange clamp 32 is configured as a cuboid structure, and two mutually perpendicular through holes are provided on the second flange clamp 32. Mutually perpendicular dividing gaps 33 are provided at both ends of the second flange clamp 32. The two dividing gaps 33 are connected to the two through holes one by one and are directly opposite each other. Bolts are installed through the dividing gaps. Therefore, the width of the dividing gaps can be adjusted by rotating the bolts, which provides convenience for controlling the rotation of the crossbar 31.

[0040] like Figure 5 As shown, to stably clamp the single-fiber collimator, the clamping mechanism 4 includes a main board 41 and a clamping plate 43. The clamping plate 43 is located at the end of the main board 41, and a connecting bolt 44 is threaded through the clamping plate 43, with the end of the connecting bolt 44 threaded into the main board 41. Furthermore, splicing grooves 46 are provided on the sidewalls of the clamping plate 43 and the main board 41 where they are close to each other. The end face of the splicing groove 46 is designed with a V-shape, and the single-fiber collimator is inserted through the space formed by the two splicing grooves 46. Therefore, with the cooperation of the clamping plate 43 and the main board 41, the single-fiber collimator can be stably installed. The orientation of the splicing groove 46 is determined according to requirements, such as being set along the height or width direction of the main board 41 and offset from the connecting bolt 44.

[0041] like Figure 5 As shown, in order to accommodate single-fiber collimators of different diameters, a spring 45 is provided on the side of the clamping plate 43 away from the main board 41. The spring 45 is in a compressed state and is sleeved on the connecting bolt 44. Therefore, under the action of the spring 45, the clamping plate 43 always tends to move closer to the main board 41, and provides convenience for clamping single-fiber collimators of different diameters.

[0042] like Figure 5 As shown, a channel is provided on the main board 41, and a fastening bolt 42 is installed through the channel. The end of the crossbar 31 is positioned directly opposite the channel and fits against the main board 41. At the same time, the end of the fastening bolt 42 is threaded into the crossbar 31. That is, the clamping mechanism 4 is installed above the three-axis adjustment platform 2 and the support frame 3. The cooperation between the three-axis adjustment platform 2 and the support frame can adjust the spatial position and tilt state of the clamping mechanism 4 and the single fiber collimator.

[0043] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An optical adjustment fixture for a COC testing platform, characterized in that, Includes a base plate (1), above which is a three-axis adjustment platform (2) and a support frame (3). The three-axis adjustment platform (2) is mounted on the base plate (1). The support frame (3) is configured as an L-shaped structure, and the bottom of the support frame (3) is connected to the three-axis adjustment platform (2). At the same time, a clamping mechanism (4) is provided at the other end of the support frame (3). The three-axis adjustment platform (2) and the support frame (3) cooperate to adjust the spatial position and tilt state of the clamping mechanism (4). The end of the clamping mechanism (4) is used to clamp a single fiber collimator.

2. The optical adjustment fixture for a COC testing platform according to claim 1, characterized in that, The support frame (3) includes a transition plate (36), a vertical rod (34) and a horizontal rod (31). A third flange clamp (35) is provided on the transition plate (36). The bottom of the vertical rod (34) is inserted into the third flange clamp (35), and a second flange clamp (32) is provided on the top of the vertical rod (34). The second flange clamp (32) is sleeved on the end of the horizontal rod (31). The clamping mechanism (4) is provided at the other end of the horizontal rod (31).

3. The optical adjustment fixture for a COC testing platform according to claim 2, characterized in that, The third flange clamp (35) is configured as a cylindrical structure, and the bottom of the third flange clamp (35) is connected to the adapter plate (36) by bolts. Meanwhile, the side wall of the third flange clamp (35) is provided with a dividing gap (33), and the width of the dividing gap (33) is adjusted by bolts.

4. The optical adjustment fixture for a COC testing platform according to claim 2, characterized in that, The second flange clamp (32) is configured as a cuboid structure, and two through holes are vertically provided on the second flange clamp (32). Dividing gaps (33) are vertically provided at both ends of the second flange clamp (32). The two dividing gaps (33) are connected to the two through holes one by one, and the width of the dividing gaps (33) is adjusted by bolts. At the same time, the ends of the vertical rod (34) and the horizontal rod (31) that are close to each other are respectively inserted into the two through holes.

5. The optical adjustment fixture for a COC testing platform according to claim 2, characterized in that, The clamping mechanism (4) includes a main board (41) and a clamping plate (43). The clamping plate (43) is located at the end of the main board (41), and splicing grooves (46) are provided on the side walls of the clamping plate (43) and the main board (41) that are close to each other. The end face of the splicing groove (46) is set as a V-shaped structure, and a single fiber collimator is installed through the space formed by the two splicing grooves (46).

6. The optical adjustment fixture for a COC testing platform according to claim 5, characterized in that, A connecting bolt (44) is provided through the clamping plate (43), and the end of the connecting bolt (44) is threaded into the main plate (41); a spring (45) is provided on the side of the clamping plate (43) away from the main plate (41) and sleeved on the connecting bolt (44), and the spring (45) is in a compressed state.

7. The optical adjustment fixture for a COC testing platform according to claim 5, characterized in that, The main board (41) is provided with a channel, and a fastening bolt (42) is provided through the channel. The end of the crossbar (31) is aligned with the channel and fits against the main board (41). At the same time, the end of the fastening bolt (42) is threaded into the crossbar (31).

8. The optical adjustment fixture for a COC testing platform according to claim 1, characterized in that, The three-axis adjustment platform (2) includes a first adjustment plate (21), a second adjustment plate (22), a third adjustment plate (23) and a fixed plate (24) arranged from top to bottom. The first adjustment plate (21), the second adjustment plate (22) and the third adjustment plate (23) move relative to the fixed plate (24) on the Z-axis, X-axis and Y-axis, respectively.

9. The optical adjustment fixture for a COC testing platform according to claim 8, characterized in that, A first slot (211) and a first plate (224) that are mutually adapted are respectively provided on the side of the first adjusting plate (21) and the second adjusting plate (22) that are close to each other; a second slot (221) and a second plate (235) that are mutually adapted are respectively provided on the side of the second adjusting plate (22) and the third adjusting plate (23) that are close to each other; a third slot (231) and a third plate (241) that are mutually adapted are respectively provided on the side of the third adjusting plate (23) and the fixing plate (24) that are close to each other; the end faces of the slots and plates can be configured as trapezoidal structures or convex structures; the first slot (211) and the first plate (224) are arranged along the Z-axis direction, the second slot (221) and the second plate (235) are arranged along the X-axis direction, and the third slot (231) and the third plate (241) are arranged along the Y-axis direction.

10. The optical adjustment fixture for a COC testing platform according to claim 9, characterized in that, A first adjusting rod (222), a second adjusting rod (233), and a third adjusting rod (242) are connected and arranged on the second adjusting plate (22), the third adjusting plate (23), and the fixed plate (24) via a first flange clamp (234); a right-angle plate (223) is hinged to the side of the first clamping plate (224), one end of the right-angle plate (223) is in contact with the first adjusting rod (222), and the other end of the right-angle plate (223) is in contact with the first adjusting plate (21); a driving plate (232) is provided on both the second adjusting plate (22) and the third adjusting plate (23), and the ends of the second adjusting rod (233) and the third adjusting rod (242) are connected to their paired driving plates (232).

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