Compact five-dimensional posture adjustment platform for optical performance testing of small-aperture optical components

Abstract

The present invention discloses a compact five-dimensional posture adjustment platform suitable for optical performance detection of small-caliber optical elements, including an L-shaped base, a lifting adjustment component, a pitch adjustment component, a deflection adjustment component, an X-axis displacement adjustment component, a Y-axis displacement adjustment component and an L-shaped bracket; the lifting adjustment component and the pitch adjustment component are arranged on the vertical plate of the L-shaped bracket, and the lifting adjustment component is also connected to the vertical plate of the L-shaped base; the deflection adjustment component, the X-axis displacement adjustment component and the Y-axis displacement adjustment component are stacked in sequence from top to bottom on the horizontal plate of the L-shaped bracket. The present invention can adjust the height, pitch, deflection, lateral position and longitudinal position of the instrument or the measured element, so that the optical path of the optical instrument and the optical path of the measured optical element coincide during the test, and through the L-shaped structural design, the five-dimensional posture adjustment components are distributed on the vertical plate and the horizontal plate of the L-shaped base, which reduces the center height of the platform and has better stability.

Description

Technical Field

[0001] The present invention relates to the technical field of optical detection equipment, and in particular to a compact five-dimensional posture adjustment platform suitable for optical performance detection of small-caliber optical elements. Background Art

[0002] Multi-dimensional optical inspection and adjustment platforms are widely used in scientific research, laser applications, fully automatic metrology and inspection equipment, industrial automation and other fields due to their high precision, large load capacity and long travel. The adjustment platform can accurately and quickly adjust the spatial position of the test piece on the platform.

[0003] The utility model patent with publication number CN201773602U discloses a four-dimensional adjustment platform for instrument installation, which uses two linear translation stages and two angular displacement stages to achieve micro-adjustment in four dimensions. Currently, there are translation stages, lifting stages, rotation adjustment stages and angular displacement stages of various specifications, which can be combined into three-dimensional and four-dimensional adjustment platforms according to needs, and can be combined into a six-dimensional adjustment platform at most. However, the existing adjustment platform is formed by stacking and combining multiple adjustment stages from bottom to top, and the overall height of the equipment is relatively high after being combined. Summary of the invention

[0004] In order to solve the problems and shortcomings existing in the above-mentioned prior art, the present invention specifically proposes a compact five-dimensional attitude adjustment platform suitable for optical performance detection of small-aperture optical components. Through the L-shaped structural design, the five-dimensional attitude adjustment components are distributed on the vertical plate and the horizontal plate of the L-shaped base. Compared with stacking the adjustment components from top to bottom and integrating them all on the base, the present invention reduces the center height of the platform and has better stability.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution of the present invention is as follows:

[0006] A compact five-dimensional posture adjustment platform suitable for optical performance detection of small-aperture optical elements comprises an L-shaped base, a lifting adjustment component, a pitch adjustment component, a deflection adjustment component, an X-axis displacement adjustment component, a Y-axis displacement adjustment component and an L-shaped bracket; the lifting adjustment component and the pitch adjustment component are arranged on a vertical plate of the L-shaped bracket, and the lifting adjustment component is also connected to the vertical plate of the L-shaped base; the deflection adjustment component, the X-axis displacement adjustment component and the Y-axis displacement adjustment component are stacked in sequence from top to bottom on a horizontal plate of the L-shaped bracket; wherein,

[0007] The lifting and adjusting assembly comprises a lifting plate, a lifting and adjusting top block, a lifting and adjusting mechanism and a lifting and adjusting spring. The lifting plate is connected to the vertical plate of the L-shaped base through a lifting and rolling linear guide pair. The lifting and adjusting top block is fixed on one side of the lifting plate. The lifting and adjusting mechanism is rotatably arranged on the vertical plate of the L-shaped base, and one end thereof abuts against the lifting and adjusting top block. One end of the lifting and adjusting spring is connected to the lifting plate, and the other end is connected to the vertical plate of the L-shaped base.

[0008] The pitch adjustment assembly comprises a pitch adjustment screw, a first cross roller bearing and a pitch adjustment spring, wherein the outer ring of the first cross roller bearing is fixed to the outer surface of the lifting plate, the inner surface of the vertical plate of the L-shaped bracket is connected to the inner ring of the first cross roller bearing, the pitch adjustment screw is fixed to the lifting plate through a pitch adjustment screw mounting seat and is located on one side of the L-shaped bracket, the end of the screw abuts against a corner of the L-shaped bracket, one end of the pitch adjustment spring is connected to the outer surface of the lifting plate, and the other end is connected to the inner surface of the vertical plate of the L-shaped bracket;

[0009] The deflection adjustment assembly comprises a deflection adjustment plate, a deflection adjustment screw, a deflection adjustment top block, a second cross roller bearing and a deflection adjustment spring, wherein the outer ring of the second cross roller bearing is fixed on the horizontal plate of the L-shaped bracket, the lower surface of the deflection adjustment plate is connected to the inner ring of the second cross roller bearing, the deflection adjustment screw is fixed to the horizontal plate of the L-shaped bracket through a deflection adjustment screw mounting seat, and is located on one side of the deflection adjustment plate, and the end of the screw contacts the deflection adjustment top block; one end of the deflection adjustment spring is connected to the horizontal plate of the L-shaped bracket, and the other end is connected to the deflection adjustment plate;

[0010] The X-axis displacement adjustment assembly comprises an X-axis displacement plate, an X-axis displacement adjustment mechanism, an X-axis displacement adjustment top block and an X-axis displacement adjustment spring. The lower surface of the X-axis displacement plate is connected to the upper surface of the deflection adjustment plate through an X-axis rolling linear guide pair. The X-axis displacement adjustment top block is arranged on the X-axis displacement plate. The X-axis displacement adjustment mechanism is arranged on the deflection adjustment plate, and the end portion is in contact with the X-axis displacement adjustment top block. One end of the X-axis displacement adjustment spring is connected to the deflection adjustment plate, and the other end is connected to the X-axis displacement plate.

[0011] The Y-axis displacement adjustment component includes a Y-axis displacement plate, a Y-axis displacement adjustment mechanism, a Y-axis displacement adjustment top block and a Y-axis displacement adjustment spring. The lower surface of the Y-axis displacement plate is connected to the upper surface of the X-axis displacement plate through a Y-axis rolling linear guide pair. The Y-axis displacement adjustment top block is arranged on the Y-axis displacement plate. The Y-axis displacement adjustment mechanism is arranged on the X-axis displacement plate, and the end portion is in contact with the Y-axis displacement adjustment top block. One end of the Y-axis displacement adjustment spring is connected to the X-axis displacement plate, and the other end is connected to the Y-axis displacement plate.

[0012] The upper surface of the Y-axis displacement plate is provided with a carrier plate, and the upper surface of the carrier plate is provided with a dovetail slot for fixing the optical instrument.

[0013] In the present invention, the lifting and lowering adjustment mechanism includes a lifting and lowering coarse adjustment mechanism, a lifting and lowering fine adjustment mechanism and a lifting and lowering adjustment push rod; the lifting and lowering coarse adjustment mechanism includes a lifting and lowering coarse adjustment knob and a lifting and lowering coarse adjustment screw, the lifting and lowering coarse adjustment screw is hollow inside, the lifting and lowering adjustment push rod is slidably arranged in the internal cavity of the lifting and lowering coarse adjustment screw, the tail end of the lifting and lowering adjustment push rod abuts against the lifting and lowering adjustment top block, the lifting and lowering coarse adjustment screw is sleeved with a lifting and lowering coarse adjustment threaded sleeve and a lifting and lowering coarse adjustment locking nut, and the lifting and lowering coarse adjustment threaded sleeve is fixedly connected to the vertical plate of the L-shaped base; the lifting and lowering fine adjustment mechanism includes a lifting and lowering fine adjustment knob and a lifting and lowering fine adjustment screw, the lifting and lowering coarse adjustment knob is provided with a threaded hole, one end of the lifting and lowering fine adjustment screw is threadedly connected to the threaded hole of the lifting and lowering coarse adjustment knob, and abuts against the top of the lifting and lowering adjustment push rod, and the other end is connected to the lifting and lowering fine adjustment knob.

[0014] In the present invention, the X-axis displacement adjustment mechanism includes an X-axis displacement rough adjustment mechanism, an X-axis displacement fine adjustment mechanism and an X-axis displacement adjustment push rod, the X-axis displacement rough adjustment mechanism is rotatably arranged on the deflection adjustment plate, the X-axis displacement fine adjustment mechanism is connected to the X-axis displacement rough adjustment mechanism, one end of the X-axis displacement adjustment push rod is connected to the X-axis displacement fine adjustment mechanism, and the other end is in contact with the X-axis displacement adjustment top block. The X-axis displacement rough adjustment mechanism rotates to drive the X-axis displacement fine adjustment mechanism and the X-axis displacement adjustment push rod to move longitudinally (along the X-axis direction), the X-axis displacement adjustment push rod contacts the X-axis displacement adjustment top block, pushes the top block to move together, and then drives the X-axis displacement plate to move together, so as to achieve the rough adjustment of the longitudinal position; further, the X-axis displacement fine adjustment mechanism rotates to drive the X-axis displacement adjustment push rod to move longitudinally (along the X-axis direction), the X-axis displacement adjustment push rod pushes the X-axis displacement adjustment top block to move together, and then drives the X-axis displacement plate to move together, so as to achieve the fine adjustment of the longitudinal position.

[0015] In the present invention, the Y-axis displacement adjustment mechanism includes a Y-axis displacement rough adjustment mechanism, a Y-axis displacement fine adjustment mechanism and a Y-axis displacement adjustment push rod, the Y-axis displacement rough adjustment mechanism is rotatably arranged on the X-axis displacement plate, the Y-axis displacement fine adjustment mechanism is connected to the Y-axis displacement rough adjustment mechanism, one end of the Y-axis displacement adjustment push rod is connected to the Y-axis displacement fine adjustment mechanism, and the other end is in contact with the Y-axis displacement adjustment top block. The Y-axis displacement rough adjustment mechanism rotates to drive the Y-axis displacement fine adjustment mechanism and the Y-axis displacement adjustment push rod to move laterally (along the Y-axis direction), the Y-axis displacement adjustment push rod contacts the Y-axis displacement adjustment top block, pushes the top block to move together, and then drives the Y-axis displacement plate to move together, so as to achieve the rough adjustment of the lateral position; further, the Y-axis displacement fine adjustment mechanism rotates to drive the Y-axis displacement adjustment push rod to move longitudinally (along the Y-axis direction), the Y-axis displacement adjustment push rod pushes the Y-axis displacement adjustment top block to move together, and then drives the Y-axis displacement plate to move together, so as to achieve the fine adjustment of the longitudinal position.

[0016] In the present invention, the specific structures of the X-axis displacement coarse adjustment mechanism, X-axis displacement fine adjustment mechanism, Y-axis displacement coarse adjustment mechanism and Y-axis displacement fine adjustment mechanism can refer to the lifting coarse adjustment mechanism and the lifting fine adjustment mechanism respectively, and will not be elaborated here.

[0017] In the present invention, a universal foot pad is arranged on the horizontal plate of the L-shaped base.

[0018] Beneficial effects of the present invention:

[0019] 1. When in use, the five-dimensional adjustment platform of the present invention can adjust the height, pitch, deflection, lateral position and longitudinal position of the optical instrument, so that the optical path of the optical instrument coincides with the optical path of the optical element to be measured, thereby meeting the test requirements, improving the test accuracy and reducing the test error.

[0020] 2. The structural layout of the five-dimensional posture adjustment platform of the present invention is reasonable. Through the L-shaped structural design, the five-dimensional posture adjustment components are distributed on the vertical plate and the horizontal plate of the L-shaped base. Compared with stacking the adjustment components from top to bottom and integrating them all on the base, the present invention reduces the center height of the platform and has better stability.

[0021] 3. The lifting and adjusting assembly of the present invention has two functions of coarse adjustment and fine adjustment when adjusting the height, and can accurately control the adjustment value to ensure the accuracy during detection.

[0022] 4. The horizontal plate of the L-shaped base of the present invention is also provided with a universal foot pad, which can quickly adjust the levelness and height of the body adjustment platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The foregoing and following detailed description of the present invention will become more apparent when read in conjunction with the following drawings, in which:

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the adjustment platform of the present invention;

[0025] Figure 2 The left view of the overall structure of the adjustment platform of the present invention;

[0026] Figure 3 The right side view of the overall structure of the adjustment platform of the present invention;

[0027] Figure 4 This is a front view of the overall structure of the adjustment platform of the present invention;

[0028] Figure 5 It is a schematic diagram of the lifting and lowering adjustment mechanism of the present invention.

[0029] In the attached figure:

[0030] 1. L-shaped base; 2. Lifting adjustment assembly; 3. Pitch adjustment assembly; 4. Deflection adjustment assembly; 5. X-axis displacement adjustment assembly; 6. Y-axis displacement adjustment assembly; 7. L-shaped bracket; 8. Loading plate; 9. L-shaped frame; 10. Optical instrument; 11. Lifting coarse adjustment mechanism; 12. Lifting fine adjustment mechanism; 13. Lifting adjustment push rod; 14. Universal foot pad; 111. Lifting coarse adjustment knob; 112. Lifting coarse adjustment screw; 113. Lifting coarse adjustment threaded sleeve; 114. Lifting coarse adjustment locking nut; 121. Lifting fine adjustment knob; 122. Lifting fine adjustment screw; 201. Lifting plate; 202, lifting and lowering rolling linear guide pair; 203, lifting and lowering adjustment top block; 301, pitch adjustment screw; 302, first cross roller bearing; 401, deflection adjustment plate; 402, deflection adjustment screw; 403, deflection adjustment top block; 404, second cross roller bearing; 501, X-axis displacement plate; 502, X-axis displacement adjustment mechanism; 503, X-axis displacement adjustment top block; 504, X-axis rolling linear guide pair; 601, Y-axis displacement plate; 602, Y-axis displacement adjustment mechanism; 603, Y-axis displacement adjustment top block; 604, Y-axis rolling linear guide pair. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions for achieving the purpose of the present invention will be further described below through several specific embodiments. It should be noted that the technical solutions claimed for protection in the present invention include but are not limited to the following embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0032] Multi-dimensional optical inspection and adjustment platforms are widely used in scientific research, laser applications, fully automatic metrology and inspection equipment, industrial automation and other fields due to their high precision, large load capacity and long travel. The adjustment platform can accurately and quickly adjust the spatial position of the test piece on the platform.

[0033] Based on this, an embodiment of the present invention proposes a compact five-dimensional posture adjustment platform for optical instruments suitable for optical inspection and testing of small-aperture optical components. The platform can adjust the height, lateral position, longitudinal position, deflection angle and pitch angle of the optical instrument or the component under test, so that the optical path of the optical component under test coincides with the optical path of the optical instrument, meeting the basic optical testing requirements; and, considering the stability and integration of the platform, the present invention distributes the five-dimensional posture adjustment components on the vertical plate and horizontal plate of the L-shaped base through an L-shaped structural design. Compared with stacking the adjustment components in sequence from top to bottom and integrating them all on the base, the adjustment platform of the present invention reduces the center height of the platform and has better stability.

[0034] In the present invention, it should be first explained that the optical element is generally a plane mirror, a lens, etc., and the small aperture refers to the aperture of the optical element being 100 mm or less; further, in the present invention, the optical instrument can be an interferometer, a laser collimator, etc. The adjustment platform of the present invention can be used to clamp and fix the optical instrument, and can also be used to clamp and fix the optical element to be tested. The ultimate goal is to make the optical path of the optical element coincide with the optical path of the optical instrument during the optical test.

[0035] This embodiment discloses a compact five-dimensional posture adjustment platform suitable for optical performance detection of large-aperture optical components. Figure 1-Figure 5 As shown, the adjustment platform mainly includes an L-shaped base 1, a lifting adjustment component 2, a pitch adjustment component 3, a deflection adjustment component 4, an X-axis displacement adjustment component 5, a Y-axis displacement adjustment component 6 and an L-shaped bracket 7; wherein the L-shaped base 1 is the supporting structure of the entire adjustment platform, and during the optical test, the entire posture adjustment platform is placed on the working platform through the L-shaped base 1; the lifting adjustment component 2 is used to adjust the height of the optical instrument or the optical element to be measured in the vertical plane; the pitch adjustment component 3 is used to adjust the pitch angle of the instrument or element; the deflection adjustment component 4 is used to adjust the deflection angle (yaw angle) of the instrument or element; the X-axis displacement adjustment component 5 is used to adjust the longitudinal position of the instrument or element; the Y-axis displacement adjustment component 6 is used to adjust the lateral position of the instrument or element; the above components constitute five-dimensional adjustment, and finally during the test, the optical path of the optical instrument is overlapped with the optical path of the optical element to be measured, meeting the basic detection requirements.

[0036] After the entire attitude adjustment platform is assembled, the lifting adjustment component 2 and the pitch adjustment component 3 are distributed on one side of the vertical plate of the L-shaped base 1, while the deflection adjustment component 4, the X-axis displacement adjustment component 5 and the Y-axis displacement adjustment component 6 are distributed above the horizontal plate of the L-shaped base 1, and are stacked and integrated in sequence from bottom to top above the horizontal plate of the L-shaped base 1. More specifically, the lifting adjustment component 2 is installed on the vertical plate of the L-shaped base 1, the pitch adjustment component 3 is fixed to the lifting end of the lifting adjustment component 2, the deflection adjustment component 4 is arranged at the pitch rotation end of the pitch adjustment component 3, the X-axis displacement adjustment component 5 is connected to the deflection rotation end of the deflection adjustment component 4, the Y-axis displacement adjustment component 6 is fixed to the X-axis displacement end of the X-axis displacement adjustment component 5, and the optical instrument or the optical element to be measured is clamped at the Y-axis displacement end of the Y-axis displacement adjustment component 6.

[0037] The entire adjustment platform has the function of adjusting in five dimensions, and through the partially separated structural design and layout of the above-mentioned dimension adjustment components, the center height of the entire platform is reduced, and the stability is better; further, refer to the attached manual Figure 1-4 It can be seen that since the overall center height of the platform is lowered, the intersection of the rotation axis where the rotation center is located when adjusting the pitch and the rotation axis where the intersection of the rotation center is located when adjusting the deflection, the intersection of the two rotation axes is located above the horizontal plate of the L-shaped bracket 7 and the height position can basically coincide with the center of the optical instrument or the optical element being measured. When adjusting the deflection and pitch, the instrument and the element can rotate around their own center without causing basically any lateral and longitudinal offsets, thereby achieving a quick adjustment effect.

[0038] The structures of the various dimensional adjustment components involved in the posture adjustment platform of the present invention will be further described and explained in more detail below, as follows.

[0039] First refer to the instruction manual Figure 1-Figure 2 The L-shaped base 1 is composed of a vertical plate and a horizontal plate; the L-shaped bracket 7 is composed of two L-shaped frames 9 and a vertical plate and a horizontal plate arranged between the two L-shaped frames 9.

[0040] Refer to the instruction manual Figure 1-4The lifting and adjusting component 2 mainly includes a lifting plate 201, a lifting and adjusting top block 203, a lifting and adjusting mechanism and a lifting and adjusting spring. The lifting plate 201 is connected to the vertical plate of the L-shaped base 1 through a lifting rolling linear guide pair 202. The guide rail of the lifting rolling linear guide pair 202 is fixed on the vertical plate of the L-shaped base 1. The inner surface of the lifting plate 201 is connected to the slider of the lifting rolling linear guide pair 202; the lifting top block 201 is connected to the lifting plate 201 and is located on one side of the lifting plate 201; the lifting and adjusting mechanism is rotatably arranged on the vertical plate of the L-shaped base 1 and is located on the same side as the lifting top block 201, and the end of the lifting and adjusting mechanism is in contact with the lifting and adjusting top block 203. While the structure is rotating, it pushes the lifting and adjusting top block 203 to move vertically downward, thereby driving the lifting plate 201 connected thereto to move downward together; one end of the lifting and adjusting spring is connected to the vertical plate of the L-shaped base 1, and the other end is connected to the inner surface of the lifting plate 201. The vertical plate of the L-shaped base 1 and the lifting plate 201 are provided with a groove for installing the lifting and adjusting spring. The lifting and adjusting spring has an initial spring tension, which makes the lifting plate 201 have a tendency to move vertically upward, thereby making the end of the lifting and adjusting mechanism always abut against the lifting and adjusting top block 203, which can not only eliminate the gap, but also after the lifting and adjusting mechanism rotates in the opposite direction, under the tension of the spring, the lifting plate 201 can move upward to achieve reset. Therefore, in the present invention, the lifting end of the lifting and adjusting assembly 2 can be understood as the lifting plate 201.

[0041] Refer to the instruction manual Figure 5 The lifting adjustment mechanism is composed of a lifting rough adjustment mechanism 11, a lifting fine adjustment mechanism 12 and a lifting adjustment push rod 13, which can realize large-scale and small-scale adjustment of the lifting movement of the lifting plate 201 in the vertical plane. The specific structure is as follows:

[0042] The lifting coarse adjustment mechanism 11 includes a lifting coarse adjustment knob 111 and a lifting coarse adjustment screw 112, the lifting coarse adjustment knob 111 is fixedly connected to the lifting coarse adjustment screw 112, the lifting coarse adjustment screw 112 is a hollow structure with two ends open, and the outer surface of the rod is provided with an external thread, the lifting adjustment push rod 13 is slidably arranged in the inner cavity of the lifting coarse adjustment screw 111, and its tail extends outwardly to the lifting coarse adjustment screw 112 and abuts against the lifting adjustment top block 203, the lifting coarse adjustment screw 111 is sleeved with a lifting coarse adjustment threaded sleeve 113 and a lifting coarse adjustment locking nut 115, the lifting coarse adjustment threaded sleeve 113 and the lifting coarse adjustment locking nut 115 are both threadedly connected to the external thread of the lifting coarse adjustment screw 112, wherein the lifting coarse adjustment threaded sleeve 113 is also fixedly connected to the vertical plate of the L-shaped base 1;

[0043] The lifting fine adjustment mechanism 12 includes a lifting fine adjustment knob 121 and a lifting fine adjustment screw 122. The lifting coarse adjustment knob 111 is provided with a threaded hole, which is connected to the internal cavity of the lifting coarse adjustment screw 112. One end of the lifting fine adjustment screw 122 is threadedly connected to the threaded hole of the lifting coarse adjustment knob 111, and extends downward to abut the top of the lifting adjustment push rod 13 located in the cavity below, and the other end passes through the threaded hole and is connected to the lifting fine adjustment knob 121.

[0044] Refer to the instruction manual Figure 1-4 The pitch adjustment assembly 3 includes a pitch adjustment screw 301, a first cross roller bearing 302 and a pitch adjustment spring. The first cross roller bearing 302 includes an outer ring and an inner ring rotatably arranged in the outer ring, and a roller is arranged between the two rings. The outer ring of the first cross roller bearing 302 is fixed to the outer surface of the lifting plate 201, and the inner surface of the vertical plate of the L-shaped bracket 7 is connected to the inner ring of the first cross roller bearing 302. The pitch adjustment screw 301 is fixed on the lifting plate 201 through a pitch adjustment screw mounting seat and is located on the L-shaped bracket. The end of the screw rod passes through the mounting seat and contacts a corner of the L-shaped frame 9, and rests on the side wall of the L-shaped frame 9; the pitch adjustment spring is located between the lifting plate 201 and the vertical plate of the L-shaped bracket 7, one end of the pitch adjustment spring is connected to the outer surface of the lifting plate 201, and the other end is connected to the inner surface of the vertical plate of the L-shaped bracket 7, and the outer surface of the lifting plate 201 and the inner surface of the vertical plate of the L-shaped bracket 7 are provided with a groove for installing the pitch adjustment spring, and the pitch adjustment spring has an initial spring tension, so that the entire L The L-shaped bracket 7 has a tendency to rotate clockwise or counterclockwise, so that the pitch adjustment screw 301 can always rest against the side wall of the L-shaped frame 9, which can not only eliminate the gap, but also achieve a reset effect under the action of the spring tension after the pitch adjustment screw 301 is reversed. In general, the initial spring tension of the pitch adjustment spring drives the L-shaped bracket 7 to rotate in the direction of the pitch adjustment screw 301 on one side, and finally makes the end of the pitch adjustment screw 301 close to the side wall of the L-shaped frame 9.

[0045] Therefore, in the present invention, the pitch rotating end of the pitch adjustment assembly 3 can be understood as the vertical plate of the L-shaped bracket 7, which can be regarded as the pitch adjustment plate structure when adjusting the pitch. Under the action of the pitch adjustment screw 301, it rotates with the first rotation axis as the rotation axis, thereby driving the entire L-shaped bracket 7 to rotate together.

[0046] Refer to the instruction manual Figure 1-4The deflection adjustment component 4 includes a deflection adjustment plate 401, a deflection adjustment screw 402, a deflection adjustment top block 403, a second cross roller bearing 404 and a deflection adjustment spring. The structure of the second cross roller bearing 404 is the same as that of the first cross roller bearing 302, and also includes an outer ring and an inner ring rotatably arranged in the outer ring. The outer ring of the second cross roller bearing 404 is fixed on the horizontal plate of the L-shaped bracket 7, and the lower surface of the deflection adjustment plate 401 is connected to the inner ring of the second cross roller bearing 404. The deflection adjustment top block 403 is fixed on one side of the deflection adjustment plate 401. The deflection adjustment screw 402 is fixed on the horizontal plate of the L-shaped bracket 7 through a deflection adjustment screw mounting seat, and the end of the screw passes through the mounting seat and contacts the deflection adjustment top block 403, resting on the deflection adjustment screw. On the adjusting top block 403; the deflection adjusting spring is arranged between the horizontal plate of the L-shaped bracket 7 and the deflection adjusting plate 401, one end of which is connected to the upper surface of the horizontal plate of the L-shaped bracket 7, and the other end is connected to the lower surface of the deflection adjusting plate 401. The deflection adjusting spring has an initial pulling force, which makes the deflection adjusting plate 401 have a tendency to rotate clockwise or counterclockwise, so that the deflection adjusting screw 402 can always abut against the deflection adjusting top block 403, which can not only eliminate the gap, but also after the deflection adjusting screw 402 is reversed, it can also achieve the effect of resetting under the action of the spring tension. In general, the initial spring tension of the deflection adjusting spring is to drive the deflection adjusting plate 401 to rotate in the direction of the deflection adjusting screw 402 on one side, and finally makes the end of the deflection adjusting screw 402 abut against the deflection adjusting top block 403.

[0047] Therefore, in the present invention, the deflection rotation end of the deflection adjustment assembly 4 can be understood as the deflection adjustment plate 401 .

[0048] Refer to the instruction manual Figure 1-4The X-axis displacement adjustment component 5 includes an X-axis displacement plate 501, an X-axis displacement adjustment mechanism 502, an X-axis displacement adjustment top block 503 and an X-axis displacement adjustment spring. The lower surface of the X-axis displacement plate 501 is connected to the upper surface of the deflection adjustment plate 401 through an X-axis rolling linear guide pair 504. The X-axis displacement adjustment top block 503 is fixed on one side of the X-axis displacement plate 501. The X-axis displacement adjustment mechanism 502 is fixed on the deflection adjustment plate 401 through a mounting seat, and its end passes through the mounting seat and contacts with the X-axis displacement adjustment top block 503, and rests on the X-axis displacement adjustment top block 503; the X-axis displacement adjustment spring One end is connected to the lower surface of the X-axis displacement plate 501, and the other end is connected to the upper surface of the deflection adjustment plate 401. The lower surface of the X-axis displacement plate 501 and the upper surface of the deflection adjustment plate 401 are provided with grooves for installing the spring. The X-axis displacement adjustment spring also has an initial spring tension, which makes the X-axis displacement adjustment top block 503 have a tendency to move toward the direction of the X-axis displacement adjustment mechanism 502, and finally makes the end of the X-axis displacement adjustment mechanism 502 always close to the X-axis displacement adjustment top block 503, which can not only eliminate the gap, but also after flipping the screw, the X-axis displacement plate 501 can be reset under the action of the spring tension.

[0049] Therefore, in the present invention, the X-axis displacement end of the X-axis displacement adjustment component 5 can be understood as the X-axis displacement plate 501 .

[0050] In the present invention, the X-axis displacement adjustment mechanism 502 can be a simple adjustment screw, which is fixed to the deflection adjustment plate 401 through a nut seat, and the end of the screw contacts the X-axis displacement adjustment top block 503 to push it to move together. Further, in order to achieve fine adjustment of horizontal movement, the X-axis displacement adjustment mechanism 502 can also be a structure composed of an X-axis displacement coarse adjustment mechanism, an X-axis displacement fine adjustment mechanism, and an X-axis displacement adjustment top rod. The three mechanisms cooperate with each other to achieve large-range and small-range adjustment of the longitudinal position. The structures of the X-axis displacement coarse adjustment mechanism and the X-axis displacement fine adjustment mechanism can refer to the lifting coarse adjustment mechanism 11 and the lifting fine adjustment mechanism 12 respectively. For example, the X-axis coarse adjustment mechanism includes an X-axis coarse adjustment knob and an X-axis coarse adjustment screw. The X-axis coarse adjustment knob is fixedly connected to the X-axis coarse adjustment screw. The X-axis coarse adjustment screw is an internally hollow structure with openings at both ends. The outer surface of the rod is provided with an external thread. The X-axis adjustment push rod is slidably arranged in the internal cavity of the X-axis coarse adjustment screw, and its tail extends outwardly and the X-axis coarse adjustment screw abuts against the X-axis adjustment push block 503. The X-axis coarse adjustment screw is sleeved with an X-axis coarse adjustment threaded sleeve and an X-axis coarse adjustment locking nut. The X-axis coarse adjustment threaded sleeve and the X-axis coarse adjustment locking nut are both threadedly connected to the external thread of the X-axis coarse adjustment screw, wherein the X-axis coarse adjustment threaded sleeve is also fixedly connected to the upper surface of the deflection adjustment plate 401.

[0051] The X-axis fine adjustment mechanism includes an X-axis fine adjustment knob and an X-axis fine adjustment screw. The X-axis coarse adjustment knob is provided with a threaded hole, which is connected to the internal cavity of the X-axis coarse adjustment screw. One end of the X-axis fine adjustment screw is threadedly connected to the threaded hole of the X-axis coarse adjustment knob and extends downward to abut the top of the X-axis adjustment push rod located in the cavity below, and the other end passes through the threaded hole and is connected to the X-axis fine adjustment knob.

[0052] The Y-axis displacement adjustment component 6 includes a Y-axis displacement plate 601, a Y-axis displacement adjustment screw 602, a Y-axis displacement adjustment top block 603 and a Y-axis displacement adjustment spring. The lower surface of the Y-axis displacement plate 601 is connected to the upper surface of the X-axis displacement plate 501 through a Y-axis rolling linear guide pair 604. The Y-axis displacement adjustment top block 503 is fixed to one side of the Y-axis displacement plate 601. The Y-axis displacement adjustment screw 602 is arranged on the X-axis displacement plate 501 through a Y-axis displacement adjustment screw mounting seat, and the end of the screw passes through the mounting seat and contacts with the Y-axis displacement adjustment top block 603, and rests on the Y-axis displacement adjustment top block 603; the Y-axis displacement adjustment spring is arranged on the X-axis displacement plate 5 01 and the Y-axis displacement plate 601, one end of which is connected to the upper surface of the X-axis displacement plate 501, and the other end is connected to the lower surface of the Y-axis displacement plate 601, the lower surface of the Y-axis displacement plate 601 and the upper surface of the X-axis displacement plate 501 are provided with a groove for installing the spring, and the Y-axis displacement adjustment spring also has an initial spring tension, which makes the Y-axis displacement adjustment top block 603 have a tendency to move toward the Y-axis displacement adjustment screw 602, and finally makes the end of the Y-axis displacement adjustment screw 602 always close to the Y-axis displacement adjustment top block 603, which can not only eliminate the gap, but also after flipping the screw, the Y-axis displacement plate 601 can be reset under the action of the spring tension.

[0053] Therefore, in the present invention, the Y-axis displacement end of the Y-axis displacement adjustment component 6 can be understood as the Y-axis displacement plate 601 .

[0054] In the present invention, the Y-axis displacement adjustment mechanism 602 can be a simple adjustment screw, which is fixed on the X-axis displacement plate 501 through a nut seat, and the end of the screw contacts the Y-axis displacement adjustment top block 603 to push it to move together. Further, in order to achieve fine adjustment of horizontal movement, the Y-axis displacement adjustment mechanism 602 can also be a structure composed of a Y-axis displacement coarse adjustment mechanism, a Y-axis displacement fine adjustment mechanism and a Y-axis displacement top rod. The three mechanisms cooperate with each other to achieve large-range and small-range adjustment of the lateral position. The structures of the Y-axis displacement coarse adjustment mechanism and the Y-axis displacement fine adjustment mechanism can refer to the lifting coarse adjustment mechanism 11 and the lifting fine adjustment mechanism 12 respectively, and will not be described in detail here.

[0055] The upper surface of the Y-axis displacement adjustment plate 601 is provided with a carrier plate 8 , and the upper surface of the carrier plate 8 is provided with a dovetail slot for fixing the optical instrument.

[0056] Furthermore, universal foot pads 14 are provided at the four corners of the lower surface of the horizontal plate of the L-shaped base 1. The universal foot pads 14 include a connecting rod and a support seat. The rod portion of the connecting rod is a threaded rod. The horizontal plate of the L-shaped base 1 is provided with a threaded hole that matches the screw rod. The lower end of the rod portion is provided with a ball head. The ball head of the connecting rod is located in a receiving groove provided in the support seat and can swing relative to the receiving groove. The rod portion extends out of the receiving groove and is connected to the threaded hole on the horizontal plate of the L-shaped base 1. The universal foot pads 14 can adjust the height and level of the entire platform as a whole.

[0057] After the optical instrument is installed on the adjustment platform, the relative position relationship between the optical instrument and the optical element to be measured is adjusted through the lifting adjustment component 2, the pitch adjustment component 3, the deflection adjustment component 4, the X-axis displacement adjustment component 5, and the Y-axis displacement adjustment component 6, so that the optical path of the instrument coincides with the optical path of the optical element to be measured, so as to complete the optical test. The specific adjustment process is as follows:

[0058] When adjusting the vertical height: first turn the coarse adjustment knob 111 to drive the coarse adjustment screw 112, the fine adjustment mechanism and the lifting adjustment push rod 13 to move downward together, and the ball head at the tail of the push rod acts on the lifting adjustment top block 203, thereby pushing the lifting adjustment top block 203 down, and the lifting adjustment top block 203 drives the lifting plate 201 to descend in the vertical plane, and the L-shaped bracket and the pitch adjustment component 3, the yaw adjustment component 4, the X-axis displacement adjustment component 5, the Y-axis displacement adjustment component 6 and the optical instrument arranged on the L-shaped bracket are driven to descend in the vertical direction as a whole, so as to achieve the coarse adjustment of the vertical height; after the coarse adjustment is in place, tighten the coarse adjustment lock. The nut 115 locks the coarse adjustment screw 112, and then the fine adjustment knob 131 is rotated to drive the fine adjustment screw 132 to move downward, and the fine adjustment screw 132 pushes the lifting adjustment push rod 13 to move downward in the cavity of the coarse adjustment screw 112, and the ball head at the tail of the push rod acts on the lifting adjustment top block 203, thereby pushing the lifting adjustment top block 203 down, and the lifting adjustment top block 203 drives the lifting plate 201 to descend in the vertical plane, and finally realizes the fine adjustment of the vertical height; after the knob is rotated in the opposite direction, under the tension of the lifting adjustment spring, the lifting plate 201 is reset, and finally achieves the effect of adjusting the vertical height of the optical instrument 10.

[0059] When adjusting the pitch angle: rotate the pitch adjustment screw 301, the pitch adjustment screw 301 presses forward against a corner of the side of the L-shaped bracket 7, and pushes the L-shaped bracket 7 to rotate relative to the lifting plate 201, thereby driving the deflection adjustment component 4, the X-axis displacement adjustment component 5, the Y-axis displacement adjustment component 6 and the optical instrument on the horizontal plate of the L-shaped bracket 7 to rotate together, so as to achieve the effect of adjusting the pitch angle of the optical instrument 10; rotate the pitch adjustment screw 301 in the opposite direction, and under the action of the tension of the pitch adjustment spring, the L-shaped bracket 7 is reset.

[0060] When adjusting the deflection angle: rotate the deflection adjustment screw 402, the deflection adjustment screw 402 is pushed forward and abuts against the deflection adjustment top block 403, and under the pushing action of the screw, the deflection adjustment plate 401 rotates in the vertical plane relative to the horizontal plate of the L-shaped bracket (equivalent to rotation around the Z axis), driving the upper X-axis displacement adjustment component 5, the Y-axis displacement adjustment component 6 and the optical instrument to rotate together, so as to achieve the effect of adjusting the deflection angle of the optical instrument 10; rotate the deflection adjustment screw 402 in the opposite direction, and under the action of the tension of the deflection adjustment spring, the deflection adjustment plate 401 is reset.

[0061] When adjusting the X-axis position: rotate the X-axis displacement adjustment mechanism 502, the mechanism as a whole moves forward, pushing the X-axis displacement adjustment top block 503 against its end to move together, and then pushing the X-axis displacement plate 501 to move horizontally along the X-axis direction (moving forward and backward), driving the upper Y-axis displacement adjustment component 6 and the optical instrument 10 to move together, so as to achieve the effect of adjusting the longitudinal position of the optical instrument 10; rotate the X-axis displacement adjustment mechanism 502 in the opposite direction, and under the pulling force of the X-axis displacement adjustment spring, the X-axis displacement plate 501 is reset.

[0062] When adjusting the Y-axis position: rotate the Y-axis displacement adjustment mechanism 602, the mechanism as a whole moves forward, pushing the Y-axis displacement adjustment top block 603 against its end to move together, and then pushing the Y-axis displacement plate 601 to move horizontally along the Y-axis direction (left and right), driving the optical instrument 10 clamped and fixed above to move together, so as to achieve the effect of adjusting the lateral position of the optical instrument 10; rotate the Y-axis displacement adjustment mechanism 602 in the opposite direction, and under the pulling force of the Y-axis displacement adjustment spring, the Y-axis displacement plate 601 is reset.

[0063] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like 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 invention 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 an obstacle to the scope of protection of the present invention.

[0064] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] The above description is only a preferred embodiment of the present invention and does not constitute any form of hindrance to the present invention. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A compact five-dimensional posture adjustment platform suitable for optical performance testing of small-aperture optical components, characterized in that: The invention comprises an L-shaped base (1), a lifting adjustment component (2), a pitch adjustment component (3), a deflection adjustment component (4), an X-axis displacement adjustment component (5), a Y-axis displacement adjustment component (6) and an L-shaped bracket (7); the lifting adjustment component (2) and the pitch adjustment component (3) are arranged on a vertical plate of the L-shaped bracket (7), and the lifting adjustment component (2) is also connected to the vertical plate of the L-shaped base (1); the deflection adjustment component (4), the X-axis displacement adjustment component (5) and the Y-axis displacement adjustment component (6) are stacked in sequence from top to bottom on a horizontal plate of the L-shaped bracket (7); wherein: The lifting and adjusting component (2) comprises a lifting plate (201), a lifting and adjusting top block (203), a lifting and adjusting mechanism and a lifting and adjusting spring; the lifting plate (201) is connected to the vertical plate of the L-shaped base (1) via a lifting and rolling linear guide pair (202); the lifting and adjusting top block (203) is fixed to one side of the lifting plate (201); the lifting and adjusting mechanism is rotatably arranged on the vertical plate of the L-shaped base (1), and one end of the lifting and adjusting mechanism abuts against the lifting and adjusting top block (203); one end of the lifting and adjusting spring is connected to the lifting plate (201), and the other end is connected to the vertical plate of the L-shaped base (1); The pitch adjustment assembly (3) comprises a pitch adjustment screw (301), a first cross roller bearing (302) and a pitch adjustment spring, wherein the outer ring of the first cross roller bearing (302) is fixed to the outer surface of the lifting plate (201), the inner surface of the vertical plate of the L-shaped bracket (7) is connected to the inner ring of the first cross roller bearing (302), the pitch adjustment screw (301) is fixed to the lifting plate (201) via a pitch adjustment screw mounting seat and is located on one side of the L-shaped bracket (7), the end of the screw abuts against a corner of the L-shaped bracket (7), and one end of the pitch adjustment spring is connected to the outer surface of the lifting plate (201), and the other end is connected to the inner surface of the vertical plate of the L-shaped bracket (7); The deflection adjustment assembly (4) comprises a deflection adjustment plate (401), a deflection adjustment screw (402), a deflection adjustment top block (403), a second cross roller bearing (404) and a deflection adjustment spring, wherein the outer ring of the second cross roller bearing (404) is fixed on the horizontal plate of the L-shaped bracket (7), the lower surface of the deflection adjustment plate (401) is connected to the inner ring of the second cross roller bearing (404), the deflection adjustment screw (402) is fixed to the horizontal plate of the L-shaped bracket (7) via a deflection adjustment screw mounting seat, and is located on one side of the deflection adjustment plate (401), and the end of the screw is in contact with the deflection adjustment top block (403); one end of the deflection adjustment spring is connected to the horizontal plate of the L-shaped bracket (7), and the other end is connected to the deflection adjustment plate (401); The X-axis displacement adjustment component (5) comprises an X-axis displacement plate (501), an X-axis displacement adjustment mechanism (502), an X-axis displacement adjustment top block (503) and an X-axis displacement adjustment spring; the lower surface of the X-axis displacement plate (501) is connected to the upper surface of the deflection adjustment plate (401) via an X-axis rolling linear guide pair (504); the X-axis displacement adjustment top block (503) is arranged on the X-axis displacement plate (501); the X-axis displacement adjustment mechanism (502) is arranged on the deflection adjustment plate (401) and an end portion thereof is in contact with the X-axis displacement adjustment top block (503); one end of the X-axis displacement adjustment spring is connected to the deflection adjustment plate (401) and the other end is connected to the X-axis displacement plate (501); The Y-axis displacement adjustment component (6) comprises a Y-axis displacement plate (601), a Y-axis displacement adjustment mechanism (602), a Y-axis displacement adjustment top block (603) and a Y-axis displacement adjustment spring; the lower surface of the Y-axis displacement plate (601) is connected to the upper surface of the X-axis displacement plate (501) via a Y-axis rolling linear guide pair (604); the Y-axis displacement adjustment top block (603) is arranged on the Y-axis displacement plate (601); the Y-axis displacement adjustment mechanism (602) is arranged on the X-axis displacement plate (501) and an end portion thereof is in contact with the Y-axis displacement adjustment top block (603); one end of the Y-axis displacement adjustment spring is connected to the X-axis displacement plate (501) and the other end is connected to the Y-axis displacement plate (601); The upper surface of the Y-axis displacement plate (601) is provided with a carrier plate (8), and the upper surface of the carrier plate (8) is provided with a dovetail slot for fixing an optical instrument.

2. The compact five-dimensional posture adjustment platform suitable for optical performance detection of small-aperture optical elements according to claim 1 is characterized in that: The lifting adjustment mechanism comprises a lifting coarse adjustment mechanism (11), a lifting fine adjustment mechanism (12) and a lifting adjustment push rod (13); the lifting coarse adjustment mechanism (11) comprises a lifting coarse adjustment knob (111) and a lifting coarse adjustment screw (112); the lifting coarse adjustment knob (111) is fixedly connected to the lifting coarse adjustment screw (112); the lifting coarse adjustment screw (112) is hollow inside; the lifting adjustment push rod (13) is slidably arranged in the internal cavity of the lifting coarse adjustment screw (112); the tail of the lifting adjustment push rod (13) abuts against the lifting adjustment top block (203); the lifting coarse adjustment screw A lifting coarse adjustment threaded sleeve (113) and a lifting coarse adjustment locking nut (114) are sleeved on (112); the lifting coarse adjustment threaded sleeve (113) is fixedly connected to the vertical plate of the L-shaped base (1); the lifting fine adjustment mechanism (12) comprises a lifting fine adjustment knob (121) and a lifting fine adjustment screw (122); the lifting coarse adjustment knob (111) is provided with a threaded hole; one end of the lifting fine adjustment screw (122) is threadedly connected to the threaded hole of the lifting coarse adjustment knob (111) and abuts against the top of the lifting adjustment push rod (13); and the other end is connected to the lifting fine adjustment knob (121).

3. The compact five-dimensional posture adjustment platform suitable for optical performance detection of small-aperture optical elements according to claim 1 is characterized in that: The X-axis displacement adjustment mechanism (502) comprises an X-axis displacement coarse adjustment mechanism, an X-axis displacement fine adjustment mechanism and an X-axis displacement adjustment push rod; the X-axis displacement coarse adjustment mechanism is rotatably arranged on the deflection adjustment plate (401); the X-axis displacement fine adjustment mechanism is connected to the X-axis displacement coarse adjustment mechanism; one end of the X-axis displacement adjustment push rod is connected to the X-axis displacement fine adjustment mechanism, and the other end is in contact with the X-axis displacement adjustment push block (503).

4. The compact five-dimensional posture adjustment platform suitable for optical performance detection of small-aperture optical elements according to claim 1, characterized in that: The Y-axis displacement adjustment mechanism (602) comprises a Y-axis displacement coarse adjustment mechanism, a Y-axis displacement fine adjustment mechanism and a Y-axis displacement adjustment push rod; the Y-axis displacement coarse adjustment mechanism is rotatably arranged on the X-axis displacement plate (501); the Y-axis displacement fine adjustment mechanism is connected to the Y-axis displacement coarse adjustment mechanism; one end of the Y-axis displacement adjustment push rod is connected to the Y-axis displacement fine adjustment mechanism, and the other end is in contact with the Y-axis displacement adjustment push block (603).

5. The compact five-dimensional posture adjustment platform suitable for optical performance detection of small-aperture optical elements according to claim 1 is characterized in that: A universal foot pad (14) is provided on the horizontal plate of the L-shaped base (1).

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