Three-axis angle adjusting platform

Abstract

The invention relates to a three-axis angle adjustment platform, and the platform comprises an optical test platform deck which comprises an angle adjustment bottom plate, the top of the angle adjustment bottom plate is connected with a top test platform deck through a universal switching assembly, and the top test platform deck rotates in any direction relative to the angle adjustment bottom plate with the universal switching assembly as the center; the three-axis adjusting mechanism comprises a first adjusting mechanism which is connected to the angle adjusting bottom plate and vertically supports the top testing carrying table to rotate around the X axis and the Y axis, and a second adjusting mechanism which drives the top testing carrying table to rotate around the Z axis. According to the three-axis angle adjusting platform, the universal switching assembly is arranged between the angle adjusting bottom plate and the top testing carrying table, the rotating center between the angle adjusting bottom plate and the top testing carrying table is located at the center point of the universal switching assembly, and the position error of the center line point does not exist. The first adjusting mechanism integrates a mechanism rotating around the X axis and a mechanism rotating around the Y axis, and the occupied height space is small.

Description

Technical Field

[0001] The present application relates to the field of panel optical testing technology, and in particular to a three-axis angle adjustment platform. Background Art

[0002] Display panels are used in all aspects of daily life. Today, the display resolution of display panels is getting higher and higher. The resolution of small and medium-sized display panels such as mobile phones and tablets has also transitioned from 1080P to 2K and 4K. After the display is produced, it needs to be optically inspected. The appearance of the display panel is photographed and analyzed by an optical camera to determine whether there is dust or foreign matter inside the screen to ensure the quality of the product.

[0003] In the related art, the optical inspection equipment needs to adjust the six degrees of freedom of the object to be inspected, namely X / Y / Z / Rx / Ry / Rz, before inspecting the object to be inspected. Since the conventional angle adjustment platform adjusts the three degrees of freedom Rx / Ry / Rz separately, and these three degrees of freedom are realized by three independent angle adjustment structures stacked together, the arrangement of the conventional angle adjustment structure is difficult to use in occasions where the assembly height is required. Summary of the invention

[0004] The embodiment of the present application provides a three-axis angle adjustment platform to solve the problem that the angle adjustment platform with three degrees of freedom Rx / Ry / Rz in the related art has a high assembly height and is difficult to use in occasions with small space height.

[0005] The embodiment of the present application provides a three-axis angle adjustment platform, comprising:

[0006] An optical test platform, the optical test platform comprising an angle adjustment base plate, the top of the angle adjustment base plate is connected to a top test platform via a universal adapter assembly, and the top test platform can rotate in any direction relative to the angle adjustment base plate with the universal adapter assembly as the center;

[0007] The three-axis adjustment mechanism includes a first adjustment mechanism connected to the angle adjustment base plate and vertically supporting the top test platform to rotate around the X-axis and the Y-axis, and a second adjustment mechanism driving the top test platform to rotate around the Z-axis.

[0008] In some embodiments: the first adjustment mechanism includes at least three height adjustment mechanisms connected to the angle adjustment base plate, the top of each height adjustment mechanism is provided with a spherical crown abutting the bottom surface of the top test platform, the connecting line of at least three height adjustment mechanisms on the angle adjustment base plate forms a plane, and the universal adapter assembly is located in the plane.

[0009] In some embodiments: the height adjustment mechanism includes a stud threadedly connected to the angle adjustment base plate, the top of the stud is provided with a hexagonal head for adjusting the height of the stud, the ball crown is fixed on the top of the hexagonal head, and the angle adjustment base plate is provided with at least three threaded holes threadedly connected to the stud.

[0010] In some embodiments: the angle adjustment base plate and the top test platform are both rectangular plate structures, the universal adapter assembly is located at the center of the angle adjustment base plate and the top test platform, and three height adjustment mechanisms are provided. The connecting line of the three height adjustment mechanisms on the angle adjustment base plate forms an isosceles triangle plane.

[0011] In some embodiments: among the three height adjustment mechanisms, two of the height adjustment mechanisms are symmetrically threadedly connected to the two ends of the long side of one side of the angle adjustment base plate, and the other height adjustment mechanism is threadedly connected to the middle of the long side of the other side of the angle adjustment base plate.

[0012] In some embodiments: the second adjustment mechanism includes vertical fixing plates fixed at both ends of the angle adjustment base plate, and mounting seats fixed at both ends of the top test platform, and each of the mounting seats is connected to a micrometer knob which is horizontally arranged and abuts against the side walls of the vertical fixing plates.

[0013] In some embodiments: the universal adapter assembly includes an upper fixed plate connected to the bottom center of the top test platform, and a lower adapter block connected to the bottom center of the angle adjustment base plate, the upper fixed plate is connected to a ball head screw, and the lower adapter block is fixedly connected to a ball seat rotatably connected to the ball head screw.

[0014] In some embodiments: a through hole is opened at the center of the angle adjustment base plate and passes through the upper and lower surfaces of the angle adjustment base plate, the ball seat is fixedly connected to the lower adapter block through the through hole, a mounting hole for installing the ball seat is opened on the lower adapter block, and a fastener is provided at the bottom of the lower adapter block to fix the ball seat inside the lower adapter block.

[0015] In some embodiments: a cavity is formed at the top of the ball seat for inserting the ball head of the ball head screw, two symmetrically arranged retaining rings are provided in the cavity, the retaining rings are provided with an arc surface rotatably connected to the spherical surface of the ball head, and a pressure cover is provided at the open end of the cavity for pressing the retaining rings.

[0016] In some embodiments: two symmetrically arranged retaining rings are spaced apart on the ball head, wherein one of the retaining rings is located at a screw rod close to the ball head screw, and the other retaining ring is located at a screw rod away from the ball head screw, and a rubber sealing cover is provided on the top of the ball seat.

[0017] The beneficial effects of the technical solution provided by this application include:

[0018] An embodiment of the present application provides a three-axis angle adjustment platform. Since the three-axis angle adjustment platform of the present application is provided with an optical test platform, the optical test platform includes an angle adjustment base plate, the top of the angle adjustment base plate is connected to a top test platform via a universal adapter assembly, and the top test platform can rotate in any direction relative to the angle adjustment base plate with the universal adapter assembly as the center; a three-axis adjustment mechanism, the three-axis adjustment mechanism includes a first adjustment mechanism connected to the angle adjustment base plate and vertically supporting the top test platform to rotate around the X-axis and the Y-axis, and a second adjustment mechanism that drives the top test platform to rotate around the Z-axis.

[0019] Therefore, the three-axis angle adjustment platform of the present application is provided with a universal adapter assembly between the angle adjustment base plate and the top test platform, and the universal adapter assembly enables the top test platform to rotate in any direction relative to the angle adjustment base plate with the universal adapter assembly as the center, so that the display panel under test positioned on the top test platform can rotate at any angle. The rotation center between the angle adjustment base plate and the top test platform is located at the center point of the universal adapter assembly, and when adjusting the top test platform in the three degrees of freedom Rx / Ry / Rz, there is no midline point position error.

[0020] In addition, a first adjustment mechanism is provided on the angle adjustment base plate through vertical support of the top test platform. The first adjustment mechanism is not only used to adjust the top test platform to rotate around the X-axis and around the Y-axis, but also has a simple structure, a small assembly height, and a low cost. The mechanism for rotating around the X-axis and around the Y-axis is two-in-one, and the height space occupies little. A second adjustment mechanism is also provided on the angle adjustment base plate to drive the top test platform to rotate around the Z-axis. The second adjustment mechanism and the first adjustment mechanism are independent of each other and do not affect each other. Multiple angle adjustment actions are reduced during use. Three rotation axes are adjusted at a time on these two mechanisms to avoid mutual interference during the adjustment of multiple axes.

[0021] The first adjustment mechanism of the embodiment of the present application includes at least three height adjustment mechanisms connected to the angle adjustment base plate, and the top of each height adjustment mechanism is provided with a spherical crown that abuts the bottom surface of the top test platform. The connection line of at least three height adjustment mechanisms on the angle adjustment base plate forms a plane, and the universal adapter assembly is located in the plane. The first adjustment mechanism is provided with at least three height adjustment mechanisms connected to the angle adjustment base plate, and the connection between the three height adjustment mechanisms forms a plane, and the universal adapter assembly is located in the plane. By adjusting the height of each height adjustment mechanism itself respectively, the top test platform can be rotated around the X-axis and around the Y-axis. The top of each height adjustment mechanism abuts the bottom surface of the top test platform through the spherical crown, and when the supporting angle adjustment base plate rotates at any angle, the apex of each spherical crown can reliably support the angle adjustment base plate.

[0022] The height adjustment mechanism of the embodiment of the present application includes a stud threadedly connected to the angle adjustment base plate, a hexagonal head for adjusting the height of the stud is provided on the top of the stud, a ball cap is fixed on the top of the hexagonal head, and at least three threaded holes for threading the stud are provided on the angle adjustment base plate. The height adjustment mechanism utilizes the threaded holes on the stud and the angle adjustment base plate, and rotates the stud by driving the hexagonal head on the top of the stud, thereby converting the rotational motion of the stud into a linear motion of the stud lifting and lowering. By rotating each stud in the forward or reverse direction, the height of the ball cap can be accurately adjusted, and the top test platform can be rotated around the X-axis and around the Y-axis, so that the top test platform is adjusted to a set angle. The height adjustment mechanism utilizes the stud and the hexagonal head to cooperate with each other, and is connected to the angle adjustment base plate by a threaded connection, which has the advantages of simple structure, low cost, easy adjustment, stable and reliable structure, etc.

[0023] The angle adjustment base plate and the top test platform of the embodiment of the present application are both rectangular plate structures, the universal adapter assembly is located at the center of the angle adjustment base plate and the top test platform, and three height adjustment mechanisms are provided, and the connection line of the three height adjustment mechanisms on the angle adjustment base plate forms an isosceles triangle plane. The angle adjustment base plate and the top test platform are preferably but not limited to rectangular plate structures, and the angle adjustment base plate and the top test platform can also be set to a disc shape or other plate structures. There are three height adjustment mechanisms, and the connection lines between the three height adjustment mechanisms form an isosceles triangle plane. The top test platform can be rotated around the X-axis and around the Y-axis by relying on the three height adjustment mechanisms to cooperate with each other to adjust their own heights respectively, which has the advantages of simple structure, small assembly height and low cost.

[0024] Among the three height adjustment mechanisms of the embodiment of the present application, two of the height adjustment mechanisms are symmetrically threadedly connected at the two ends of the long side of one side of the angle adjustment base plate, and the other height adjustment mechanism is threadedly connected at the middle of the long side of the other side of the angle adjustment base plate. When the top test platform is rotated around the X-axis direction, the two height adjustment mechanisms symmetrically threadedly connected at the two ends of the long side of one side of the angle adjustment base plate are adjusted to their own heights respectively, so that the top test platform can be rotated around the X-axis direction, and the other height adjustment mechanism located in the middle of the long side of the other side of the angle adjustment base plate does not need to be adjusted. When the top test platform is rotated around the Y-axis direction, the two height adjustment mechanisms symmetrically threadedly connected at the two ends of the long side of one side of the angle adjustment base plate are synchronously adjusted to their own heights upward or downward, and then the height of the other height adjustment mechanism located in the middle of the long side of the other side of the angle adjustment base plate is adjusted upward or downward. The adjustment logic is simple and easy to use.

[0025] The second adjustment mechanism of the embodiment of the present application includes vertical fixing plates fixed at both ends of the angle adjustment base plate, and mounting seats fixed at both ends of the top test platform, and each mounting seat is connected to a micrometer knob that is horizontally arranged and abuts against the side walls of the vertical fixing plates. The second adjustment mechanism is provided with vertical fixing plates at both ends of the angle adjustment base plate, and mounting seats are provided at both ends of the top test platform, and the mounting seats are used to install the micrometer knobs, and the telescopic ends of the micrometer knobs abut against the side walls of the vertical fixing plates. When adjusting the top test platform to rotate around the Z-axis direction, by adjusting the extension length of the two micrometer knobs, the top test platform is rotated around the Z-axis with the universal adapter assembly as the rotating axis. The micrometer knob has high adjustment accuracy and can accurately adjust the rotation angle of the top test platform around the Z-axis.

[0026] The universal adapter assembly of the embodiment of the present application includes an upper fixed plate connected to the bottom center of the top test platform, and a lower adapter block connected to the bottom center of the angle adjustment base plate, the upper fixed plate is connected to a ball screw, and the lower adapter block is fixedly connected to a ball seat that is rotatably connected to the ball screw. The screw of the ball screw is fixedly connected to the bottom center of the top test platform through the upper fixed plate, the ball head of the ball screw is rotatably connected to the ball seat, and the ball head of the ball screw rotates 360 degrees in the ball seat, so that the top test platform has a greater degree of freedom in angle adjustment. The ball seat is fixedly connected to the bottom center of the angle adjustment base plate through the lower adapter block, and the universal adapter assembly is centered at the center of the top test platform and the angle adjustment base plate, so that the top test platform is in a more balanced state.

[0027] A through hole penetrating the upper and lower surfaces of the angle adjustment base plate is provided in the center of the angle adjustment base plate in the embodiment of the present application. The ball seat is fixedly connected to the lower adapter block through the through hole. A mounting hole for installing the ball seat is provided on the lower adapter block. A fastener for fixing the ball seat in the lower adapter block is provided at the bottom of the lower adapter block. A through hole penetrating the upper and lower surfaces of the angle adjustment base plate is provided in the center of the angle adjustment base plate. The through hole is used to pass the ball seat and then be fixedly connected to the lower adapter block. The ball seat does not occupy the space between the top test platform and the angle adjustment base plate, so that the vertical height between the top test platform and the angle adjustment base plate can be lower. A fastener for fixing the ball seat in the lower adapter block is provided at the bottom of the lower adapter block, thereby fixing the ball seat in the lower adapter block, thereby improving the structural stability of the ball seat.

[0028] The top of the ball seat of the embodiment of the present application is provided with a cavity for inserting the ball head of the ball screw, and two symmetrically arranged retaining rings are arranged in the cavity, and the retaining rings are provided with an arc surface that is rotatably connected to the spherical surface of the ball head, and the open end of the cavity is provided with a pressure cover for pressing the retaining rings. The cavity of the ball seat is provided with two symmetrically arranged retaining rings, and the retaining rings are provided with an arc surface that is rotatably connected to the spherical surface of the ball head. The arc surface and the ball head of the ball screw slide with each other, so that the ball screw can rotate freely relative to the ball seat. Processing the spherical surface on the retaining ring is convenient for processing and the processing time is short. When the retaining ring is worn, it is easy to disassemble and replace, which reduces the processing and use costs. The open end of the cavity is provided with a pressure cover for pressing the retaining ring to fix the ball head and the retaining ring in the ball seat to prevent them from falling out of the ball seat.

[0029] The two symmetrically arranged retaining rings of the embodiment of the present application are arranged at intervals on the ball head, one of which is located on the screw rod close to the ball head screw, and the other is located on the screw rod far away from the ball head screw, and a rubber sealing cover is provided on the top of the ball seat. The retaining rings are arranged at intervals on the ball head, and when the two symmetrically arranged retaining rings are worn, the two retaining rings are tightened by adjusting the pressure cover, so that the retaining rings and the ball heads of the ball head screw rod are precisely contacted and slidably connected with each other. One of the retaining rings is located on the screw rod close to the ball head screw, and the other retaining ring is located on the screw rod far away from the ball head screw, so that the retaining ring is convenient for matching with the ball head, and the pressure cover is convenient for tightening the retaining ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a structural front view of an embodiment of the present application;

[0032] Figure 2A top view of the structure of an embodiment of the present application;

[0033] Figure 3 It is a left view of the structure of the embodiment of the present application;

[0034] Figure 4 for Figure 1 The cross-sectional view along the AA direction;

[0035] Figure 5 A structural stereogram of an embodiment of the present application;

[0036] Figure 6 It is a schematic diagram of the structure of the ball screw and the ball seat according to the embodiment of the present application.

[0037] Reference numerals:

[0038] 1. Angle adjustment base plate; 2. Top test platform; 3. Universal adapter assembly; 4. First adjustment mechanism; 5. Second adjustment mechanism; 31. Upper fixing plate; 32. Lower adapter block; 33. Ball screw; 34. Ball seat; 35. Fastener; 36. Ball head; 37. Retaining ring; 38. Gland; 39. Rubber sealing cover;

[0039] 41. Ball crown; 42. Hexagonal head; 43. Stud; 51. Vertical fixing plate; 52. Mounting seat; 53. Micrometer knob. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0041] The embodiment of the present application provides a three-axis angle adjustment platform, which can solve the problem that the angle adjustment platform with three degrees of freedom Rx / Ry / Rz in the related art has a high assembly height and is difficult to use in occasions with small space height.

[0042] See also Figures 1 to 3 As shown, the embodiment of the present application provides a three-axis angle adjustment platform, including:

[0043] The optical test platform includes an angle adjustment base plate 1, and a top test platform 2 is connected to the top of the angle adjustment base plate 1 through a universal adapter component 3. The top test platform 2 is used to position and fix the display panel under test. The universal adapter component 3 has the flexibility of 360-degree rotation. The top test platform 2 can rotate in any direction relative to the angle adjustment base plate 1 with the universal adapter component 3 as the center.

[0044] The three-axis adjustment mechanism includes a first adjustment mechanism 4 connected to the angle adjustment base plate 1 and vertically supporting the top test platform 2 to rotate around the X-axis and the Y-axis, and a second adjustment mechanism 5 driving the top test platform 2 to rotate around the Z-axis. The first adjustment mechanism 4 and the second adjustment mechanism 5 cooperate with each other to enable the top test platform 2 to rotate in any direction relative to the angle adjustment base plate 1 with the universal adapter assembly 3 as the center and maintain its posture.

[0045] The three-axis angle adjustment platform of the present application is provided with a universal adapter assembly 3 between the angle adjustment base plate 1 and the top test platform 2. The universal adapter assembly 3 allows the top test platform 2 to rotate in any direction relative to the angle adjustment base plate 1 with the universal adapter assembly 3 as the center, so that the display panel under test positioned on the top test platform 2 can rotate at any angle. The rotation center between the angle adjustment base plate 1 and the top test platform 2 is located at the center point of the universal adapter assembly 3. When adjusting the top test platform 2 in the three degrees of freedom Rx / Ry / Rz, there is no midline point position error.

[0046] In addition, a first adjustment mechanism 4 is provided on the angle adjustment base plate 1 by vertically supporting the top test platform 2. The first adjustment mechanism 4 is not only used to adjust the top test platform 2 to rotate around the X-axis and around the Y-axis, but also has a simple structure, a small assembly height, and a low cost. The mechanism for rotating around the X-axis and around the Y-axis is two-in-one, and the height space occupancy is small. A second adjustment mechanism 5 for driving the top test platform 2 to rotate around the Z-axis is also provided on the angle adjustment base plate 1. The second adjustment mechanism 5 and the first adjustment mechanism 4 are independent of each other and do not affect each other. Multiple angle adjustment actions are reduced during use. Three rotation axes are adjusted at a time on these two mechanisms to avoid mutual interference during the adjustment of multiple axes.

[0047] In some alternative embodiments: See Figures 1 to 4 As shown, an embodiment of the present application provides a three-axis angle adjustment platform, wherein a first adjustment mechanism 4 of the three-axis angle adjustment platform includes at least three height adjustment mechanisms connected to an angle adjustment base plate 1, and a spherical crown 41 abutting against the bottom surface of a top test platform 2 is provided on the top of each height adjustment mechanism, and a connecting line of at least three height adjustment mechanisms on the angle adjustment base plate 1 forms a plane, and the universal adapter assembly 3 is located in the plane.

[0048] The first adjustment mechanism 4 of the application embodiment is provided with at least three height adjustment mechanisms connected to the angle adjustment base plate, the connection between the three height adjustment mechanisms forms a plane, and the universal adapter assembly 3 is located in the plane. The height of each height adjustment mechanism is adjusted separately to allow the top test platform 2 to rotate around the X-axis and around the Y-axis. The top of each height adjustment mechanism abuts against the bottom surface of the top test platform 2 through a spherical crown 41, and when the supporting angle adjustment base plate 1 rotates at any angle, the apex of each spherical crown 41 can reliably support the angle adjustment base plate 1.

[0049] In some alternative embodiments: See Figures 1 to 4 As shown, an embodiment of the present application provides a three-axis angle adjustment platform, and the height adjustment mechanism of the three-axis angle adjustment platform includes a stud 43 threadedly connected to the angle adjustment base plate 1, and the top of the stud 43 is provided with a hexagonal head 42 for adjusting the height of the stud 43, and the ball crown 41 is fixed on the top of the hexagonal head 42, and at least three threaded holes for threaded connection of the stud 43 are opened on the angle adjustment base plate 1.

[0050] The height adjustment mechanism of the embodiment of the application utilizes a stud 43 to connect with the threaded hole on the angle adjustment base plate 1, and the hexagonal head 42 on the top of the stud 43 is driven to rotate the stud 43, so as to convert the rotational motion of the stud 43 into a linear motion of the stud 43 rising and falling. By rotating each stud 43 in the forward or reverse direction, the height of the ball crown 41 can be accurately adjusted, so that the top test platform 2 can be rotated around the X-axis and around the Y-axis, so that the top test platform 2 is adjusted to a set angle. The height adjustment mechanism utilizes the stud 43 and the hexagonal head 42 to cooperate with each other, and is connected to the angle adjustment base plate 1 by a threaded connection, which has the advantages of simple structure, low cost, easy adjustment, stable and reliable structure, etc.

[0051] In some alternative embodiments: See Figures 1 to 4 As shown, an embodiment of the present application provides a three-axis angle adjustment platform, wherein the angle adjustment base plate 1 and the top test platform 2 of the three-axis angle adjustment platform are both rectangular plate structures, the universal adapter assembly 3 is located at the center position of the angle adjustment base plate 1 and the top test platform 2, and three height adjustment mechanisms are provided, and the connecting lines of the three height adjustment mechanisms on the angle adjustment base plate 1 form an isosceles triangle plane.

[0052] The angle adjustment base plate 1 and the top test platform 2 of the embodiment of the application are preferably, but not limited to, rectangular plate structures. The angle adjustment base plate 1 and the top test platform 2 can also be set to a disc shape or other plate structures. There are three height adjustment mechanisms, and the connecting lines between the three height adjustment mechanisms form an isosceles triangle plane. The top test platform 2 can be rotated around the X-axis and around the Y-axis by adjusting its own height respectively by cooperating with each other. It has the advantages of simple structure, small assembly height and low cost.

[0053] In some alternative embodiments: See Figures 1 to 4 As shown, an embodiment of the present application provides a three-axis angle adjustment platform. Among the three height adjustment mechanisms of the three-axis angle adjustment platform, two of the height adjustment mechanisms are symmetrically threadedly connected at the two ends of the long side of one side of the angle adjustment base plate 1, and the other height adjustment mechanism is threadedly connected at the middle of the long side of the other side of the angle adjustment base plate 1.

[0054] In the embodiment of the present application, when the top test platform 2 is rotated around the X-axis direction, the two height adjustment mechanisms symmetrically threadedly connected at the two ends of the long side of one side of the angle adjustment base plate 1 are adjusted to their own heights respectively, so that the top test platform 2 can be rotated around the X-axis direction, and the other height adjustment mechanism located in the middle of the long side on the other side of the angle adjustment base plate 1 does not need to be adjusted.

[0055] In the embodiment of the present application, when the top test platform 2 is rotated around the Y-axis direction, the two height adjustment mechanisms symmetrically threadedly connected at the two ends of the long side of one side of the angle adjustment base plate 1 are synchronously adjusted upward or downward to adjust their own heights, and then the height of the other height adjustment mechanism located in the middle of the long side of the other side of the angle adjustment base plate 1 is adjusted upward or downward. The adjustment logic is simple and easy to use.

[0056] In some alternative embodiments: See Figure 5 As shown, an embodiment of the present application provides a three-axis angle adjustment platform, and the second adjustment mechanism 5 of the three-axis angle adjustment platform includes a vertical fixing plate 51 fixed at both ends of the angle adjustment base plate 1, and a mounting seat 52 fixed at both ends of the top test platform 2, and each mounting seat 52 is connected to a micrometer knob 53 which is horizontally arranged and abuts against the side wall of the vertical fixing plate 51.

[0057] The second adjustment mechanism 5 of the embodiment of the present application is provided with vertical fixing plates 51 at both ends of the angle adjustment base plate 1, and mounting seats 52 are provided at both ends of the top test platform 2, and the mounting seats 52 are used to install the micrometer knob 53, and the telescopic end of the micrometer knob 53 abuts against the side wall of the vertical fixing plate 51.

[0058] When adjusting the top test platform 2 to rotate around the Z axis, the top test platform 2 is rotated around the Z axis with the universal adapter assembly 3 as the rotation axis by adjusting the extension length of the two micrometer knobs 53. The micrometer knob 53 has high adjustment accuracy and can accurately adjust the rotation angle of the top test platform 2 around the Z axis.

[0059] In some alternative embodiments: See Figure 4 and Figure 6As shown, an embodiment of the present application provides a three-axis angle adjustment platform, and the universal adapter assembly 3 of the three-axis angle adjustment platform includes an upper fixed plate 31 connected to the bottom center of the top test platform 2, and a lower adapter block 32 connected to the bottom center of the angle adjustment base plate 1, the upper fixed plate 31 is connected to a ball head screw 33, and the lower adapter block 32 is fixedly connected to a ball seat 34 that is rotatably connected to the ball head screw 33.

[0060] The screw of the ball screw 33 of the embodiment of the present application is fixedly connected to the bottom center position of the top test platform 2 through the upper fixing plate 31, and the ball head 36 of the ball screw 33 is rotatably connected to the ball seat 34. The ball head 36 of the ball screw 33 can rotate 360 ​​degrees in the ball seat 34, so that the top test platform 2 has a greater degree of freedom in angle adjustment.

[0061] The screw of the ball screw 33 is connected to the bottom center position of the top test platform 2 through the upper fixing plate 31, and the ball seat 34 is fixedly connected to the bottom center position of the angle adjustment base plate 1 through the lower adapter block 32. The universal adapter assembly 3 is centered at the center position of the top test platform 2 and the angle adjustment base plate 1, so that the top test platform 2 is in a more balanced state.

[0062] In some alternative embodiments: See Figure 4 and Figure 6 As shown, an embodiment of the present application provides a three-axis angle adjustment platform, a through hole penetrating the upper and lower surfaces of the angle adjustment base plate 1 is opened at the center of the angle adjustment base plate 1 of the three-axis angle adjustment platform, a ball seat 34 passes through the through hole and is fixedly connected to the lower adapter block 32, a mounting hole for mounting the ball seat 34 is opened on the lower adapter block 32, and a fastener 35 for fixing the ball seat 34 inside the lower adapter block 32 is provided at the bottom of the lower adapter block 32.

[0063] In the embodiment of the present application, a through hole is opened in the center of the angle adjustment base plate 1, which passes through the upper and lower surfaces of the angle adjustment base plate 1. The through hole is used to pass through the ball seat 34 and then be fixedly connected with the lower adapter block 32. The ball seat 34 does not occupy the space between the top test platform 2 and the angle adjustment base plate 1, and thus the vertical height between the top test platform 2 and the angle adjustment base plate 1 can be lower.

[0064] A fastener 35 is provided at the bottom of the lower adapter block 32 to fix the ball seat 34 inside the lower adapter block 32 . The fastener 35 can be a bolt, and the fastener 35 fixes the ball seat 34 inside the lower adapter block 32 to improve the structural stability of the ball seat 34 .

[0065] In some alternative embodiments: See Figure 6As shown, an embodiment of the present application provides a three-axis angle adjustment platform, the top of the ball seat 34 of the three-axis angle adjustment platform is provided with a cavity for inserting the ball head 36 of the ball head screw 33, two symmetrically arranged retaining rings 37 are provided in the cavity, the retaining rings 37 are provided with an arc surface rotatably connected to the spherical surface of the ball head 36, and the open end of the cavity is provided with a pressure cover 38 for tightening the retaining ring.

[0066] In the embodiment of the present application, two symmetrically arranged retaining rings 37 are provided in the cavity of the ball seat 34. The retaining ring 37 is provided with an arc surface that is rotatably connected to the spherical surface of the ball head 36. The arc surface and the ball head 36 of the ball head screw 33 are slidably matched with each other, so that the ball head screw 33 can rotate freely relative to the ball seat 34.

[0067] The spherical surface is processed on the retaining ring 37, which is convenient for processing and has a short processing time. When the retaining ring 37 is worn, it is easy to disassemble and replace, which reduces the processing and use costs. A pressure cover 38 is provided at the open end of the cavity to press the retaining ring 37. The pressure cover 38 fixes the ball head 36 and the retaining ring 37 in the ball seat 34 to prevent them from falling out of the ball seat 34.

[0068] In some alternative embodiments: See Figure 6 As shown, an embodiment of the present application provides a three-axis angle adjustment platform, in which two symmetrically arranged retaining rings 37 are spaced apart on the ball head 36, wherein one retaining ring 37 is located at a screw rod close to the ball head screw 33, and the other retaining ring 37 is located at a screw rod away from the ball head screw 33, and a rubber sealing cover 39 is provided on the top of the ball seat 34.

[0069] The retaining rings 37 of the embodiment of the present application are arranged at intervals on the ball head 36. When the two symmetrically arranged retaining rings 37 are worn, the two retaining rings 37 are compressed by adjusting the pressure cap 38, so that the retaining rings 37 and the ball head 36 of the ball screw 33 are precisely contacted and slidably connected with each other. One of the retaining rings 37 is located on the screw rod close to the ball screw 33, and the other retaining ring is located on the screw rod far from the ball screw 33, so that the retaining ring 37 is convenient for matching with the ball head 36 and the pressure cap 38 is convenient for compressing the retaining ring 37.

[0070] How it works

[0071] An embodiment of the present application provides a three-axis angle adjustment platform. Since the three-axis angle adjustment platform of the present application is provided with an optical test platform, the optical test platform includes an angle adjustment base plate 1, and the top of the angle adjustment base plate 1 is connected to a top test platform 2 through a universal adapter assembly 3, and the top test platform 2 can rotate in any direction relative to the angle adjustment base plate 1 with the universal adapter assembly 3 as the center; a three-axis adjustment mechanism, which includes a first adjustment mechanism 4 connected to the angle adjustment base plate 1 and vertically supporting the top test platform to rotate around the X-axis and the Y-axis, and a second adjustment mechanism 5 that drives the top test platform 2 to rotate around the Z-axis.

[0072] Therefore, the three-axis angle adjustment platform of the present application is provided with a universal adapter assembly 3 between the angle adjustment base plate 1 and the top test platform 2, and the universal adapter assembly 3 allows the top test platform 2 to rotate in any direction relative to the angle adjustment base plate 1 with the universal adapter assembly 3 as the center, so that the display panel under test positioned on the top test platform 2 can rotate at any angle. The rotation center between the angle adjustment base plate 1 and the top test platform 2 is located at the center point of the universal adapter assembly 3, and there is no midline point position error when adjusting the top test platform 2 in the three degrees of freedom Rx / Ry / Rz.

[0073] In addition, a first adjustment mechanism 4 is provided on the angle adjustment base plate 1 through vertical support of the top test platform. The first adjustment mechanism 4 is not only used to adjust the top test platform 2 to rotate around the X-axis and around the Y-axis, but also has a simple structure, a small assembly height, and a low cost. The mechanism for rotating around the X-axis and around the Y-axis is two-in-one, and the height space occupancy is small. A second adjustment mechanism 5 for driving the top test platform 2 to rotate around the Z-axis is also provided on the angle adjustment base plate 1. The second adjustment mechanism 5 and the first adjustment mechanism 4 are independent of each other and do not affect each other. Multiple angle adjustment actions are reduced during use. Three rotation axes are adjusted at a time on these two mechanisms to avoid mutual interference during the adjustment of multiple axes.

[0074] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0075] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0076] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A three-axis angle adjustment platform, characterized in that: include: An optical test platform, the optical test platform comprising an angle adjustment base plate (1), the top of the angle adjustment base plate (1) being connected to a top test platform (2) via a universal adapter component (3), the top test platform (2) being rotatable in any direction relative to the angle adjustment base plate (1) with the universal adapter component (3) as the center; A three-axis adjustment mechanism, comprising a first adjustment mechanism (4) connected to the angle adjustment base plate (1) and vertically supporting the top test platform (2) to rotate around the X-axis and around the Y-axis, and a second adjustment mechanism (5) driving the top test platform (2) to rotate around the Z-axis.

2. A three-axis angle adjustment platform as claimed in claim 1, characterized in that: The first adjustment mechanism (4) comprises at least three height adjustment mechanisms connected to the angle adjustment base plate, each of the height adjustment mechanisms being provided with a spherical crown (41) abutting against the bottom surface of the top test carrier (2) at the top, and the connecting line of at least three of the height adjustment mechanisms on the angle adjustment base plate (1) forms a plane, and the universal adapter assembly (3) is located in the plane.

3. A three-axis angle adjustment platform as claimed in claim 2, characterized in that: The height adjustment mechanism comprises a stud (43) threadedly connected to the angle adjustment base plate (1); a hexagonal head (42) for adjusting the height of the stud (43) is provided on the top of the stud (43); the spherical cap (41) is fixed on the top of the hexagonal head (42); and at least three threaded holes for threading the stud (43) are provided on the angle adjustment base plate (1).

4. A three-axis angle adjustment platform as claimed in claim 2 or 3, characterized in that: The angle adjustment base plate (1) and the top test platform (2) are both rectangular plate structures, the universal adapter assembly (3) is located at the center of the angle adjustment base plate (1) and the top test platform (2), three height adjustment mechanisms are provided, and the connecting line of the three height adjustment mechanisms on the angle adjustment base plate (1) forms an isosceles triangle plane.

5. The three-axis angle adjustment platform according to claim 3, characterized in that: Among the three height adjustment mechanisms, two of the height adjustment mechanisms are symmetrically threadedly connected to the two ends of the long side of one side of the angle adjustment base plate (1), and the other height adjustment mechanism is threadedly connected to the middle of the long side of the other side of the angle adjustment base plate (1).

6. The three-axis angle adjustment platform according to claim 1, characterized in that: The second adjustment mechanism (5) comprises vertical fixing plates (51) fixed to the two ends of the angle adjustment base plate (1), and mounting seats (52) fixed to the two ends of the top test platform (2), each mounting seat (52) being connected to a micrometer knob (53) which is horizontally arranged and abuts against the side wall of the vertical fixing plate (51).

7. The three-axis angle adjustment platform according to claim 1, characterized in that: The universal adapter assembly (3) comprises an upper fixed plate (31) connected to the bottom center of the top test platform (2), and a lower adapter block (32) connected to the bottom center of the angle adjustment base plate (1), the upper fixed plate (31) being connected to a ball screw (33), and the lower adapter block (32) being fixedly connected to a ball seat (34) rotatably connected to the ball screw (33).

8. A three-axis angle adjustment platform as claimed in claim 7, characterized in that: A through hole is provided at the center of the angle adjustment base plate (1) and passes through the upper and lower surfaces of the angle adjustment base plate (1); the ball seat (34) passes through the through hole and is fixedly connected to the lower adapter block (32); a mounting hole for mounting the ball seat (34) is provided on the lower adapter block (32); and a fastener (35) for fixing the ball seat (34) inside the lower adapter block (32) is provided at the bottom of the lower adapter block (32).

9. The three-axis angle adjustment platform according to claim 7, characterized in that: The top of the ball seat (34) is provided with a cavity for inserting the ball head (36) of the ball head screw (33), and two symmetrically arranged retaining rings (37) are arranged in the cavity. The retaining rings (37) are provided with arc surfaces rotatably connected to the spherical surface of the ball head (36), and the open end of the cavity is provided with a pressure cover (38) for pressing the retaining rings (37).

10. The three-axis angle adjustment platform according to claim 9, characterized in that: Two symmetrically arranged retaining rings (37) are spaced apart on the ball head (36), wherein one of the retaining rings (37) is located on a screw rod close to the ball head screw rod (33), and the other retaining ring (37) is located on a screw rod far from the ball head screw rod (33), and a rubber sealing cover (39) is provided on the top of the ball seat (34).

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