An ultra-wide-angle active alignment adjustment table

Abstract

This utility model discloses an ultra-wide-angle active alignment adjustment stage, relating to the field of testing technology. The device includes a base plate, an alignment mechanism, a test rail, and multiple light source assemblies. The alignment mechanism is fixed to the center of the base plate, and the test rail is also fixed to the base plate, capable of accommodating the alignment mechanism. Multiple light source assemblies are arranged on the test rail, with the light source surface of each light source assembly facing the alignment mechanism. The alignment mechanism includes a three-axis translation stage and a three-axis swing stage. The Z-rotation swing stage of the three-axis swing stage is fitted onto the Z-axis translation stage of the three-axis translation stage, and the Z-rotation swing stage is located in the center of the Z-axis translation stage. By fitting the Z-rotation swing stage onto the Z-axis translation stage of the three-axis translation stage and placing the Z-rotation swing stage in the center of the Z-axis translation stage, this utility model reduces the height of the alignment mechanism, thereby lowering the center of gravity of the adjustment stage in the Z-axis direction. This ensures that the accuracy of the alignment mechanism in adjusting the circuit board under test is not affected by the higher center of gravity.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to an ultra-wide-angle active alignment adjustment stage. Background Technology

[0002] With the development of technology, more and more electronic devices are being used in daily life. The circuit boards in electronic devices usually need to undergo optical testing during the production and processing process. Before optical testing, the circuit boards need to be precisely adjusted by small displacements (angular displacement or linear displacement) using an adjustment table to meet the focal length requirements of the camera module lens and ensure that the camera module obtains the best imaging state.

[0003] When adjusting the circuit board of the existing adjustment stage, a motorized displacement stage capable of adjusting six degrees of freedom is usually used. However, existing motorized displacement stages capable of adjusting six degrees of freedom are generally composed of a translation stage and a rotary stage that are stacked sequentially in the XYZ directions, resulting in a relatively tall structure and a high center of gravity in the Z-axis direction. When the center of gravity of the adjustment stage is too high in the Z-axis direction, vibration occurs at the end of the adjustment stage during the adjustment of the circuit board, which can easily affect the adjustment accuracy of the adjustment stage.

[0004] In the process of developing this utility model, the applicant discovered at least the following problems in the prior art:

[0005] The existing adjustment table has a center of gravity that is too high in the Z-axis direction, which can easily affect the adjustment accuracy of the adjustment table. Utility Model Content

[0006] The purpose of this invention is to provide an ultra-wide-angle active alignment stage to solve the technical problem in the prior art where the center of gravity of the existing alignment stage is too high in the Z-axis direction, which easily affects the adjustment accuracy of the stage. The various technical effects of the preferred technical solutions provided by this invention are detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This utility model provides an ultra-wide-angle active alignment adjustment stage, including a base plate, an alignment mechanism, a test rail, and multiple light source components. The alignment mechanism is fixed in the middle of the base plate, the test rail is fixed on the base plate, and the test rail can accommodate the alignment mechanism. Multiple light source components are arranged on the test rail, and the light source surface of each light source component faces the alignment mechanism.

[0009] The alignment mechanism includes a three-axis translation stage and a three-axis swing stage. The Z-rotation swing stage of the three-axis swing stage is sleeved on the Z-axis translation stage of the three-axis translation stage, and the Z-rotation swing stage is located in the middle of the Z-axis translation stage.

[0010] Optionally, the alignment mechanism further includes a mounting platform and a fixture. The mounting platform is fixedly connected to the base plate, the three-axis translation stage is fixedly connected to the mounting platform, and the three-axis translation stage is fixedly connected to the lower end of the three-axis swing stage. The fixture is fixedly connected above the three-axis swing stage and is used to place the circuit board to be tested.

[0011] Optionally, the three-axis translation stage further includes a Y-axis translation stage and an X-axis translation stage. The Y-axis translation stage is fixed on the mounting platform and is used to move the fixture in the Y direction. The X-axis translation stage is fixed on the Y-axis translation stage and is used to move the fixture in the X direction. The Z-axis translation stage is fixed on the X-axis translation stage and is used to move the fixture in the Z direction.

[0012] Optionally, the Z-axis translation stage includes a lead screw, a Z-axis moving drive, multiple first bearings, and multiple bushings. The multiple bushings correspond one-to-one with the multiple first bearings, and the bushings are sleeved on the first bearings. The first end of each first bearing is fixedly connected to the X-axis translation stage. The lead screw is located in the middle of the multiple first bearings, and the first end of the lead screw is fixedly connected to the X-axis translation stage. The lead screw passes through the Z-rotational swing stage. The Z-axis moving drive is fixed on the Z-rotational swing stage, and the Z-axis moving drive is movably connected to the lead screw through a synchronous belt and a synchronous pulley.

[0013] The Z-rotation stage includes an inner ring structure, an outer ring structure, an inner ring drive component, a connecting plate, a first mounting plate, and a second mounting plate. The outer ring structure is fixed on the first mounting plate, and the inner ring structure is disposed inside the outer ring structure with a clearance fit. The second mounting plate is fixed on the inner ring drive component, which is fixedly connected to the inner ring structure. The inner ring drive component is used to control the rotation of the inner ring structure within the outer ring structure. The connecting plate has a first through hole structure and multiple second through hole structures. The multiple second through hole structures match and correspond one-to-one with multiple bushings. The connecting plate is fixed on the bushings through the second through hole structures and sleeved outside the inner ring structure through the first through hole structures. The connecting plate is fixedly connected to the outer ring structure.

[0014] Optionally, the three-axis swing table further includes an X-rotary swing table and a Y-rotary swing table. The X-rotary swing table is fixedly connected to the second mounting plate of the Z-rotary swing table, and the Y-rotary swing table is fixedly connected to the X-rotary swing table. The X-rotary swing table is used to drive the fixture to rotate in the X direction, the Y-rotary swing table is used to drive the fixture to rotate in the Y direction, and the Z-rotary swing table is used to drive the fixture to rotate in the Z direction.

[0015] Optionally, the alignment mechanism further includes a lens assembly and an auxiliary light source structure, both of which are fixed on the mounting platform and are correspondingly arranged on the rear side of the three-axis translation stage and the three-axis swing stage.

[0016] The lens assembly includes a lens component, a gripper, and a first fixing base. The first fixing base is fixedly connected to the mounting platform. The gripper is fixed to the top of the first fixing base. The lens component is fixed to the gripper and extends through the gripper to the top of the fixture.

[0017] The auxiliary light source structure includes an auxiliary light source component, a mounting component, and a second fixing base. The second fixing base is fixedly connected to the mounting platform. The mounting component is fixed on the top of the second fixing base and extends above the lens component. The auxiliary light source component is movably connected to the mounting component.

[0018] Optionally, each of the light source components includes a fixing member, a light source plate, and a resolution marker. The light source plate is fixedly connected to one end of the fixing member, and the resolution marker is disposed on the light source plate, with the light source plate facing the alignment mechanism. The fixing member is movably connected to the test track.

[0019] Optionally, the test track has an arc structure, and the center of the test track coincides with the center of the lens component.

[0020] Optionally, the fixing member is provided with an elongated through hole, and the test track is provided with a sliding groove. By passing the fastener through the elongated through hole and the sliding groove in sequence, the fixing member is fixed on the test track. The fastener can move within the elongated through hole to adjust the radial distance between the light source assembly and the alignment mechanism. The fastener can move within the sliding groove to allow the light source assembly to rotate along the trajectory of the test guide rail.

[0021] Optionally, the number of light source components is 4M-3, where M is the number of layers of light source components arranged on the test rail.

[0022] Implementing one of the above-described technical solutions of this utility model has the following advantages or beneficial effects:

[0023] This invention reduces the height of the alignment mechanism by placing the Z-rotation stage of the three-axis stage on the Z-axis translation stage of the three-axis translation stage and setting the Z-rotation stage in the middle of the Z-axis translation stage. This lowers the center of gravity of the adjustment stage in the Z-axis direction, ensuring that the accuracy of the alignment mechanism in adjusting the circuit board under test is not affected by the higher center of gravity. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0025] Figure 1 This is a first perspective view of an embodiment of the present utility model;

[0026] Figure 2 This is a second perspective view of an embodiment of the present utility model;

[0027] Figure 3 This is an exploded view of the three-axis translation stage and the three-axis swing stage according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the alignment mechanism according to an embodiment of the present invention.

[0029] In the diagram: 1. Base plate; 2. Alignment mechanism; 21. Three-axis translation stage; 211. Y-axis translation stage; 212. X-axis translation stage; 213. Z-axis translation stage; 2131. First bearing; 2132. Bushing; 2133. Lead screw; 2134. Z-axis movement drive; 22. Three-axis swing table; 221. Z-axis rotary swing table; 2211. Inner ring structure; 2212. Outer ring structure; 2213. Inner ring drive; 2214. Connecting plate; 2215. First mounting plate; 2216. Second... Mounting plate; 222, X-rotary stage; 223, Y-rotary stage; 23, mounting platform; 24, fixture; 25, circuit board under test; 26, lens assembly; 261, lens component; 262, gripper; 263, first fixed base; 27, auxiliary light source structure; 271, auxiliary light source component; 272, mounting component; 273, second fixed base; 3, test guide rail; 31, slide groove; 4, light source assembly; 41, fixing component; 411, elongated through hole; 42, light source board; 43, sharpness standard plate. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, various exemplary embodiments described below will be referenced to the accompanying drawings, which form part of the exemplary embodiments, illustrating various exemplary embodiments that may be adopted to implement this utility model. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. It should be understood that they are merely examples of processes, methods, and apparatuses consistent with some aspects of this utility model disclosed as detailed in the appended claims, and other embodiments may be used, or structural and functional modifications may be made to the embodiments listed herein without departing from the scope and spirit of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the referred element must have a specific orientation, or be constructed and operated in a specific orientation. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. The term "multiple" means two or more. The terms "connected" and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, integral connections, mechanical connections, electrical connections, communication connections, direct connections, indirect connections through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more of the related listed items. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] To illustrate the technical solution described in this utility model, specific embodiments are described below, showing only the parts related to the embodiments of this utility model.

[0033] Example 1:

[0034] like Figure 1As shown, this utility model provides an ultra-wide-angle active alignment adjustment stage, including a base plate 1, an alignment mechanism 2, a test rail 3, and multiple light source components 4. The alignment mechanism 2 is fixed in the middle of the base plate 1, and the test rail is fixed on the base plate 1, and the test rail can accommodate the alignment mechanism 2. Multiple light source components 4 are arranged on the test rail, and the light source surface of each light source component 4 faces the alignment mechanism 2. The alignment mechanism 2 includes a three-axis translation stage 21 and a three-axis swing stage 22. The Z-axis rotation swing stage 221 of the three-axis swing stage 22 is sleeved on the Z-axis translation stage 213 of the three-axis translation stage 21, and the Z-axis rotation swing stage 221 is located in the middle of the Z-axis translation stage 213. Specifically, the base plate 1 is used to support the alignment mechanism 2 and the test rail 3, ensuring that the alignment mechanism 2 and the test rail 3 can be fixed on a workbench through the base plate 1. The base plate 1 has a notch, and the base plate 1 matches the table surface of the workbench. The notch on the base plate 1 allows the operator to sit down and operate the adjustment stage, such as adjusting the position of the light source components 4 and loading materials. The test rail 3 is fixed at the four corners of the base plate 1, and the test rail 3 can cover the alignment mechanism 2, so that the light emitted by the multiple light source components 4 fixed on the test rail 3 can all illuminate the alignment mechanism 2, providing illumination for the alignment mechanism 2 and improving the adjustment accuracy of the alignment mechanism 2. The three-axis translation stage 21 of the alignment mechanism 2 can drive the circuit board 25 under test (described below) on the fixture 24 to move in the XYZ direction, adjusting the position of the circuit board 25 under test in the XYZ direction. The three-axis swing stage 22 of the alignment mechanism 2 can drive the circuit board 25 under test to rotate in the XYZ direction, thereby adjusting the angle of the circuit board 25 under test. Through the adjustment of the three-axis translation stage 21 and the three-axis swing stage 22, the circuit board 25 under test can be accurately aligned with the lens component 261 of the alignment mechanism 2 (described below).

[0035] The present invention reduces the height of the alignment mechanism 2 by mounting the Z-rotation stage 221 of the three-axis stage 22 on the Z-axis translation stage 213 of the three-axis translation stage 21 and setting the Z-rotation stage 221 in the middle of the Z-axis translation stage 213, thereby lowering the center of gravity of the adjustment stage in the Z-axis direction and ensuring that the accuracy of the alignment mechanism 2 in adjusting the circuit board 25 under test is not affected by the higher center of gravity.

[0036] As an optional implementation method, such as Figure 4As shown, the alignment mechanism 2 also includes a mounting platform 23 and a fixture 24. The mounting platform 23 is fixedly connected to the base plate 1. A three-axis translation stage 21 is fixedly connected to the mounting platform 23 and is fixedly connected to the lower end of a three-axis swing stage 22. The fixture 24 is fixedly connected above the three-axis swing stage 22 and is used to place the circuit board 25 to be tested. Specifically, the mounting platform 23 is used to mount and fix the three-axis translation stage 21 and the three-axis swing stage 22. The fixture 24 is fixed on the three-axis swing stage 22 and is used to place the circuit board 25 to be tested, facilitating the testing of the circuit board 25. The three-axis translation stage 21 and the three-axis swing stage 22 can adjust the fixture 24, thereby adjusting the position of the circuit board 25 to be tested on the fixture 24, so that the circuit board 25 to be tested is aligned with the lens component 261.

[0037] As an optional implementation method, such as Figure 3 As shown, the three-axis translation stage 21 also includes a Y-axis translation stage 211 and an X-axis translation stage 212. The Y-axis translation stage 211 is fixed on the mounting platform 23 and is used to move the fixture 24 in the Y direction. The X-axis translation stage 212 is fixed on the Y-axis translation stage 211 and is used to move the fixture 24 in the X direction. The Z-axis translation stage 213 is fixed on the X-axis translation stage 212 and is used to move the fixture 24 in the Z direction. Specifically, the Y-axis translation stage 211, X-axis translation stage 212, and Z-axis translation stage 213 are fixedly connected sequentially from bottom to top. When the Y-axis translation stage 211 moves, it can drive the X-axis translation stage 212, Z-axis translation stage 213, three-axis swing stage 22, fixture 24, and the circuit board 25 under test fixed on the Y-axis translation stage 211 to move synchronously in the Y direction. When the X-axis translation stage 212 moves, it can drive the Z-axis translation stage 213, three-axis swing stage 22, fixture 24, and the circuit board 25 under test fixed on the X-axis translation stage 212 to move synchronously in the X direction. When the Z-axis translation stage 213 moves, it can drive the three-axis swing stage 22, fixture 24, and the circuit board 25 under test fixed on the Z-axis translation stage 213 to move synchronously in the Z direction. More specifically, the structures of the Y-axis translation stage 211, X-axis translation stage 212 and Z-axis translation stage 213 all include a slide rail, a slider and a slide base. The slide base is fixedly connected to the slider, and the slide base is movably connected to the slide rail through the slider, thereby realizing movement in a specific direction.

[0038] As an optional implementation method, such as Figure 3As shown, the Z-axis translation stage 213 includes a lead screw 2133, a Z-axis moving drive 2134, multiple first bearings 2131, and multiple bushings 2132. The multiple bushings 2132 correspond one-to-one with the multiple first bearings 2131, and the bushings 2132 are sleeved on the first bearings 2131. The first end of each first bearing 2131 is fixedly connected to the X-axis translation stage 212. The lead screw 2133 is located in the middle position of the multiple first bearings 2131, and the first end of the lead screw 2133 is fixedly connected to the X-axis translation stage 212. The lead screw 2133 is inserted through the Z-axis rotary table 221. The Z-axis moving drive 2134 is fixed on the Z-axis rotary table 221, and the Z-axis moving drive 2134 is movably connected to the lead screw 2133 through a synchronous belt and a synchronous pulley. Specifically, the number of first bearings 2131 can be four, fixed at four positions on the top of the X-axis translation stage 212, and a rectangular area is drawn for installing the Z-rotation stage 221 to reduce the center of gravity of the adjustment stage in the Z direction. The lead screw 2133 is fixed on the top of the X-axis translation stage 212, and the lead screw 2133 is located in the middle of the rectangular area drawn by the four first bearings 2131. Each first bearing 2131 is fitted with a bushing 2132, and the first bearing 2131 and the bushing 2132 are movably connected. The bushing 2132 is fixedly connected to the Z-rotation stage 221. A lead screw nut is fitted on the lead screw 2133, and the lead screw nut is embedded in the middle of the synchronous pulley. When the Z-axis moving drive 2134, which is fixed on the Z-rotary swing table 221, is started, it drives the synchronous pulley to rotate via the synchronous belt, thereby driving the lead screw nut embedded in the synchronous pulley to rotate on the lead screw 2133, so that the Z-rotary swing table 221 moves up and down on the lead screw 2133 and the first bearing 2131 (i.e., moves in the Z direction).

[0039] As an optional implementation method, such as Figure 3As shown, the Z-axis rotary table 221 includes a lead screw 2133, an inner ring structure 2211, an outer ring structure 2212, an inner ring drive 2213, a Z-axis movement drive 2134, a connecting plate 2214, a first mounting plate 2215, and a second mounting plate 2216. The outer ring structure 2212 is fixed on the first mounting plate 2215, and the inner ring structure 2211 is disposed inside the outer ring structure 2212 with a clearance fit. The second mounting plate 2216 is fixed on the inner ring drive 2213, and the inner ring drive 2213 is fixedly connected to the inner ring structure 2211. The inner ring drive 2213 is used to control the rotation of the inner ring structure 2211 within the outer ring structure 2212. The connecting plate 2214 has a first through hole structure and multiple second through hole structures. The multiple second through hole structures are matched and correspond one-to-one with multiple bushings 2132. The connecting plate 2214 is fixed to the bushings 2132 through the second through hole structures. The connecting plate 2214 is sleeved on the outer ring structure 2211 through the first through hole structure, and the connecting plate 2214 is fixedly connected to the outer ring structure 2212. Specifically, the connecting plate 2214 is fixed to the bushings 2132 through the second through holes, and the Z-axis translation stage 213 drives the Z-axis rotary stage 221 to move in the Z direction via the connecting plate 2214 and the synchronous wheel. The inner ring structure 2211 is disposed within the outer ring structure 2212, and the inner ring structure 2211 and the outer ring structure 2212 are in clearance fit. The inner ring drive component 2213 can drive the inner ring structure 2211 to rotate around the Z direction within the outer ring structure 2212, thereby driving the second mounting plate 2216 fixed on the inner ring structure 2211, and the X rotary stage 222, Y rotary stage 223, fixture 24 and circuit board 25 under test fixed on the second mounting plate 2216 to rotate around the Z direction. The inner ring drive component 2213 can be a push rod motor, or a linear displacement actuator composed of a servo motor, coupling and push rod. More specifically, a rotary bearing is provided in the middle of the first mounting plate 2215. The first mounting plate 2215 is sleeved on the lead screw 2133 through the rotary bearing, and the upper end of the lead screw nut embedded in the synchronous pulley is embedded in the rotary bearing. The rotary bearing provides rotational support for the lead screw nut in the Z direction.

[0040] As an optional implementation method, such as Figure 3As shown, the triaxial pendulum stage 22 also includes an X-rotary pendulum stage 222 and a Y-rotary pendulum stage 223. The X-rotary pendulum stage 222 is fixedly connected to the second mounting plate 2216 of the Z-rotary pendulum stage 221, and the Y-rotary pendulum stage 223 is fixedly connected to the X-rotary pendulum stage 222. The X-rotary pendulum stage 222 is used to drive the fixture 24 to rotate in the X direction, the Y-rotary pendulum stage 223 is used to drive the fixture 24 to rotate in the Y direction, and the Z-rotary pendulum stage 221 is used to drive the fixture 24 to rotate in the Z direction. Specifically, the Z-rotary pendulum stage 221, the X-rotary pendulum stage 222, and the Y-rotary pendulum stage 223 are fixedly connected from bottom to top. When the Z-rotary pendulum stage 221 moves, it can drive the X-rotary pendulum stage 222, the Y-rotary pendulum stage 223, the fixture 24, and the circuit board 25 under test on the fixture 24 to rotate synchronously around the Z direction. When the X-rotary pendulum 222 moves, it can drive the Y-rotary pendulum 223, the fixture 24, and the circuit board 25 under test on the fixture 24, which are fixed on the X-rotary pendulum 222, to rotate synchronously around the X direction. When the Y-rotary pendulum 223 moves, it can drive the fixture 24 and the circuit board 25 under test on the fixture 24, which are fixed on the Y-rotary pendulum 223, to rotate synchronously around the Y direction.

[0041] As an optional implementation method, such as Figure 4As shown, the alignment mechanism 2 also includes a lens assembly 26 and an auxiliary light source structure 27. Both the lens assembly 26 and the auxiliary light source structure 27 are fixed on the mounting stage 23, and are respectively positioned on the rear side of the three-axis translation stage 21 and the three-axis swing stage 22. The lens assembly 26 includes a lens element 261, a gripper 262, and a first fixing base 263. The first fixing base 263 is fixedly connected to the mounting stage 23, the gripper 262 is fixed to the top of the first fixing base 263, the lens element 261 is fixed on the gripper 262, and extends above the fixture 24 through the gripper 262. The auxiliary light source structure 27 includes an auxiliary light source element 271, a mounting element 272, and a second fixing base 273. The second fixing base 273 is fixedly connected to the mounting stage 23, the mounting element 272 is fixed to the top of the second fixing base 273, and the mounting element 272 extends above the lens element 261. The auxiliary light source element 271 is movably connected to the mounting element 272. Specifically, a lens assembly 26 is installed on the rear side of the three-axis translation stage 21 and the three-axis swing stage 22 to facilitate the inspection of the aligned circuit board 25 under test through the lens assembly 26. After the three-axis translation stage 21 and the three-axis swing stage 22 adjust the fixture 24, the circuit board 25 under test on the fixture 24 is aligned with the lens assembly 261, thereby enabling the lens assembly 261 to achieve the best imaging state. The first mounting base 263 is used to provide a certain installation height for the lens assembly 261. One end of the gripper 262 is fixed to the top of the first mounting base, and the other end extends above the fixture 24 and is used to tighten and fix the lens assembly 261, thereby enabling the lens assembly 261 to be installed above the fixture 24. The gripper 262 can be an electric gripper 262 or a pneumatic gripper 262. The auxiliary light source structure 27 is used to provide assistance to the lens assembly 26. The auxiliary light source component 271 can slide on the mounting component 272, that is, slide from above the lens component 261 to the corresponding position on the upper end of the second fixing seat 273. When the auxiliary light source component 271 slides away from above the lens component 261, it can avoid obstructing the lens component 261.

[0042] As an optional implementation method, such as Figure 2As shown, each light source assembly 4 includes a fixing member 41, a light source plate 42, and a sharpness indicator 43. The light source plate 42 is fixedly connected to one end of the fixing member 41, and the sharpness indicator 43 is disposed on the light source plate 42, with the light source plate 42 facing the alignment mechanism 2. The fixing member 41 is movably connected to the test track. Specifically, in each light source assembly 4, the light source plate 42 is connected to the test track via the fixing member 41, with the light source surface of the light source plate 42 facing the lens assembly 261. The sharpness indicator 43 is disposed on the light source plate 42 to facilitate sharpness analysis of the light information acquired by the light source plate 42 from the lens assembly 261. The fixing member 41 is movably connected to the test track, allowing adjustment of the installation position of the light source assembly 4 on the test guide rail 3 as needed. The sharpness indicator 43 can be rotated on the light source plate 42, allowing operators to rotate the sharpness indicator 43 relative to the lens assembly 261 to a given angle, such as 8° or 7°, according to actual usage requirements.

[0043] As an optional implementation method, such as Figure 2 As shown, the test track has an arc-shaped structure, with its center coinciding with the center of the lens component 261. Specifically, the arc-shaped structure of the test track facilitates the orientation of the light source surface of each light source component 4 fixed on the test guide rail 3 towards the lens component 261, ensuring that the light emitted by the light source component 4 illuminates the lens component 261. The center of the test track coinciding with the center of the lens component 261 allows the light emitted by the light source component 4 to illuminate the lens component 261, enabling field-of-view testing of the ultra-wide-angle lens component 261. More specifically, the test guide rail 3 consists of multiple arc-shaped guide rail supports. The plane containing these supports is perpendicular to the base plate 1. The lower ends of the multiple guide rail supports are fixedly connected to different positions on the base plate 1, while the upper ends are fixedly connected to each other and located directly above the alignment mechanism 2. Preferably, there are four guide rail supports.

[0044] As an optional implementation method, such as Figure 2As shown, the fixing member 41 has an elongated through hole 411, and the test track has a sliding groove 31. By passing the fastener through the elongated through hole 411 and the sliding groove 31 in sequence, the fixing member 41 is fixed on the test track. The movement of the fastener within the elongated through hole 411 adjusts the radial distance between the light source assembly 4 and the alignment mechanism 2. The movement of the fastener within the sliding groove 31 allows the light source assembly 4 to rotate along the trajectory of the test guide rail 3. Specifically, by passing the fastener through the elongated through hole 411 and the sliding groove 31 in sequence, the light source assembly 4 is installed on the test track. Adjusting the position of the fastener within the elongated through hole 411 adjusts the distance between the light source plate 42 and the lens assembly 261. Adjusting the position of the fastener within the sliding groove 31 allows the light source assembly 4 to rotate around the center of the test guide rail 3, achieving rotation of the light source assembly 4 at any angle within 110°. By using fasteners in conjunction with the elongated through-hole 411 and the slide 31, the installation position of the light source assembly 4 can be adjusted to meet different testing needs of users.

[0045] As an optional implementation, the number of light source components 4 is 4M-3, where M is the number of layers of light source components 4 set on the test guide rail 3. Specifically, as shown... Figure 2 As shown, the number of light source components 4 on the test rail 3 is 3. The top layer has only one light source component 4 fixed in the middle of the top of the test rail 3. Each layer below the top layer has four light source components 4. Therefore, the number of light source components 4 is 9. In addition, the number of light source components 4 can also be adjusted according to actual needs. It is only necessary to ensure that there is one light source component 4 on the top layer and four light source components 4 on each layer below the top layer.

[0046] The embodiment is merely a special case and does not indicate that this utility model is implemented in such a way.

[0047] The above description is merely a preferred embodiment of the present utility model. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present utility model. Furthermore, under the teachings of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present utility model.

Claims

1. An ultra-wide-angle active alignment adjustment stage, characterized in that, The device includes a base plate (1), an alignment mechanism (2), a test rail (3), and multiple light source assemblies (4). The alignment mechanism (2) is fixed in the middle of the base plate (1), the test rail is fixed on the base plate (1), and the test rail can accommodate the alignment mechanism (2). Multiple light source assemblies (4) are arranged on the test rail, and the light source surface of each light source assembly (4) faces the alignment mechanism (2). The alignment mechanism (2) includes a three-axis translation stage (21) and a three-axis swing stage (22). The Z-rotation swing stage (221) of the three-axis swing stage (22) is sleeved on the Z-axis translation stage (213) of the three-axis translation stage (21), and the Z-rotation swing stage (221) is located in the middle of the Z-axis translation stage (213).

2. The ultra-wide-angle active alignment adjustment stage according to claim 1, characterized in that, The alignment mechanism (2) further includes a mounting platform (23) and a fixture (24). The mounting platform (23) is fixedly connected to the base plate (1). The three-axis translation stage (21) is fixedly connected to the mounting platform (23) and is fixedly connected to the lower end of the three-axis swing stage (22). The fixture (24) is fixedly connected above the three-axis swing stage (22) and is used to place the circuit board (25) to be tested.

3. The ultra-wide-angle active alignment adjustment stage according to claim 2, characterized in that, The three-axis translation stage (21) further includes a Y-axis translation stage (211) and an X-axis translation stage (212). The Y-axis translation stage (211) is fixed on the mounting platform (23) and is used to drive the fixture (24) to move in the Y direction. The X-axis translation stage (212) is fixed on the Y-axis translation stage (211) and is used to drive the fixture (24) to move in the X direction. The Z-axis translation stage (213) is fixed on the X-axis translation stage (212) and is used to drive the fixture (24) to move in the Z direction.

4. The ultra-wide-angle active alignment adjustment stage according to claim 3, characterized in that, The Z-axis translation stage (213) includes a lead screw (2133), a Z-axis moving drive (2134), multiple first bearings (2131), and multiple bushings (2132). Each bushing (2132) corresponds one-to-one with a first bearing (2131), and the bushing (2132) is fitted onto the first bearing (2131). The first end of each first bearing (2131) is fixedly connected to the X-axis translation stage (212). The lead screw ( 2133) is positioned in the middle of multiple first bearings (2131), the first end of each lead screw (2133) is fixedly connected to the X-axis translation stage (212), the lead screw (2133) is disposed through the Z-axis rotary table (221), the Z-axis moving drive (2134) is fixed on the Z-axis rotary table (221), and the Z-axis moving drive (2134) is movably connected to the lead screw (2133) through a synchronous belt and a synchronous pulley; The Z-rotation stage (221) includes an inner ring structure (2211), an outer ring structure (2212), an inner ring drive member (2213), a connecting plate (2214), a first mounting plate (2215), and a second mounting plate (2216). The outer ring structure (2212) is fixed on the first mounting plate (2215). The inner ring structure (2211) is disposed inside the outer ring structure (2212), and the inner ring structure (2211) and the outer ring structure (2212) are clearance-fitted. The second mounting plate (2216) is fixed on the inner ring drive member (2213), and the inner ring drive member (2213) and the inner ring structure are... (2211) Fixed connection, the inner ring drive (2213) is used to control the inner ring structure (2211) to rotate in the outer ring structure (2212); the connecting plate (2214) is provided with a first through hole structure and a plurality of second through hole structures, the plurality of second through hole structures are matched with the plurality of bushings (2132) and correspond one to one, the connecting plate (2214) is fixed on the bushing (2132) through the second through hole structure, the connecting plate (2214) is sleeved on the outer ring structure (2211) through the first through hole structure, and the connecting plate (2214) is fixedly connected to the outer ring structure (2212).

5. The ultra-wide-angle active alignment adjustment stage according to claim 4, characterized in that, The triaxial swing table (22) further includes an X-rotary swing table (222) and a Y-rotary swing table (223). The X-rotary swing table (222) is fixedly connected to the second mounting plate (2216) of the Z-rotary swing table (221). The Y-rotary swing table (223) is fixedly connected to the X-rotary swing table (222). The X-rotary swing table (222) is used to drive the fixture (24) to rotate in the X direction. The Y-rotary swing table (223) is used to drive the fixture (24) to rotate in the Y direction. The Z-rotary swing table (221) is used to drive the fixture (24) to rotate in the Z direction.

6. The ultra-wide-angle active alignment adjustment stage according to claim 2, characterized in that, The alignment mechanism (2) also includes a lens assembly (26) and an auxiliary light source structure (27). The lens assembly (26) and the auxiliary light source structure (27) are both fixed on the mounting platform (23). The lens assembly (26) and the auxiliary light source structure (27) are respectively arranged on the rear side of the three-axis translation stage (21) and the three-axis swing stage (22). The lens assembly (26) includes a lens element (261), a gripper (262), and a first fixing base (263). The first fixing base (263) is fixedly connected to the mounting platform (23). The gripper (262) is fixed on the top of the first fixing base (263). The lens element (261) is fixed on the gripper (262) and extends through the gripper (262) to the top of the fixture (24). The auxiliary light source structure (27) includes an auxiliary light source component (271), a mounting component (272), and a second fixing base (273). The second fixing base (273) is fixedly connected to the mounting platform (23). The mounting component (272) is fixed on the top of the second fixing base (273) and extends above the lens component (261). The auxiliary light source component (271) is movably connected to the mounting component (272).

7. The ultra-wide-angle active alignment adjustment stage according to claim 6, characterized in that, Each of the light source components (4) includes a fixing member (41), a light source plate (42), and a sharpness target plate (43). The light source plate (42) is fixedly connected to one end of the fixing member (41), and the sharpness target plate (43) is disposed on the light source plate (42), with the light source plate (42) facing the alignment mechanism (2). The fixing member (41) is movably connected to the test track.

8. The ultra-wide-angle active alignment adjustment stage according to claim 7, characterized in that, The test track has an arc structure, and the center of the test track coincides with the center of the lens component (261).

9. The ultra-wide-angle active alignment adjustment stage according to claim 8, characterized in that, The fixing member (41) is provided with an elongated through hole (411), and the test track is provided with a sliding groove (31). By passing the fastener through the elongated through hole (411) and the sliding groove (31) in sequence, the fixing member (41) is fixed on the test track. The fastener can move within the elongated through hole (411) to adjust the radial distance between the light source assembly (4) and the alignment mechanism (2). The fastener can move within the sliding groove (31) to allow the light source assembly (4) to rotate along the trajectory of the test guide rail (3).

10. The ultra-wide-angle active alignment adjustment stage according to any one of claims 1-9, characterized in that, The number of light source components (4) is 4M-3, where M is the number of layers of the light source components (4) set on the test rail (3).

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