Attached seam adjusting device and method applied to oversized hard spherical reflector

Abstract

The adjustment device and method applied to the abutted seam of the oversized hard spherical reflector can obviously simplify the adjustment process of the abutted seam of the oversized hard spherical reflector and improve the working efficiency. The device comprises a supporting frame body (1), an operation platform (5), a top portal frame (2), a standard detection sample plate (3), a vertical adjusting mechanism (6) and a radial adjusting mechanism (4).

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optics, in particular to a large-size hard spherical mirror seam adjustment device and a working method thereof. BACKGROUND

[0002] The application field of optical large-aperture hard spherical mirrors is very wide, and thus is widely concerned. Generally, several mirrors are spliced according to size requirements.

[0003] However, in the splicing process of the optical large-aperture hard spherical mirror, the overall size is very large, and the precision requirement is extremely high, so the splicing process is very complex, time-consuming, and the splicing effect is not ideal, and the rework rate is high. SUMMARY

[0004] In order to overcome the defects of the prior art, the present application provides a large-size hard spherical mirror seam adjustment device, which can significantly simplify the adjustment process of the large-size hard spherical mirror seam and improve work efficiency.

[0005] The technical scheme of the present application is as follows: the large-size hard spherical mirror seam adjustment device comprises a support frame body (1), an operation platform (5), a top gantry (2), a standard detection template (3), a vertical adjustment mechanism (6), and a radial adjustment mechanism (4).

[0006] The support frame body is annular, and the main body is formed by assembling and welding profiles. A plurality of identical frame bodies are connected to each other to form a semicircular combined frame in the annular direction. The combined frame can be extended in the annular direction according to the number of mirror blocks.

[0007] The operation platform is connected to the outside of the support frame body, and the surface of the operation platform is paved with anti-skid steps for brief support when personnel work.

[0008] The top gantry is a single-layer truss structure, located above the support frame combined body. It fixes and maintains the shape of the cross-section opening position of the support frame combined body from above. A rotating shaft is arranged at the middle position of the top gantry and connected to the standard detection template.

[0009] The standard detection template is manufactured by profiling according to the imaging screen of the visual system, and is a vertical arc surface structure. A standard grid plate is attached to the arc surface to inspect the hard mirror seam effect.

[0010] The vertical adjustment structure is located on the upper surface of the lower base of the support frame body, and comprises a movable base, a lead screw, and a fixed block.

[0011] The radial adjustment mechanism comprises a fixed nut, an adjustment screw rod, a locking nut, and a transition piece. Two pieces of the radial adjustment mechanism are arranged in a group on the upper and lower parts of the support frame body in a uniform ring shape. The radial adjustment mechanism is distributed in two rings on the frame body and is distributed in a ring shape along the flange position of the mirror.

[0012] The application can realize fast positioning and reference adjustment of large-diameter spherical hard spherical mirrors, improve assembly precision, increase the number of mirrors in a ring shape as needed, and improve the application range of assembly tools. Therefore, the adjustment process of super-large hard spherical mirror seams can be obviously simplified, and work efficiency is improved.

[0013] A working method of the super-large hard spherical mirror seam adjustment device is also provided, which comprises the following steps:

[0014] (1) Assemble the support frame body into a combined frame in the adjustment room, and adjust the support frame body to be horizontal by adjusting the foot support;

[0015] (2) Combine and fix the upper gantry with the support frame body, and connect the detection template with the rotating shaft of the upper gantry;

[0016] (3) Hoist and turn the first super-large hard spherical mirror to the central position of the support frame body, and adjust the left-right symmetry thereof;

[0017] (4) Connect each two groups of radial adjustment mechanisms on the upper and lower parts of the support frame with the adjustment holes in the four corners of the mirror seat through bolts;

[0018] (5) Adjust the vertical adjustment mechanism to adjust the mirror to be horizontal;

[0019] (6) Measure the four corner points of the hard mirror from the spherical center mark position of the top gantry, adjust the radial adjustment mechanism through radial front and rear adjustment, so that the distance from the spherical center to the four corner points of the mirror is equal;

[0020] (7) Install a laser emitter at the spherical center position, so that the laser irradiates on the spherical mirror, detect the light spot of the reflected light irradiating on the whiteboard at the spherical center position, so that the distance between the light spot and the spherical center is less than 25 mm, and select 5 points on the mirror surface to perform the above operation. When all the operations meet the requirements, the mirror is fixed and used as the adjustment reference;

[0021] (8) Hoist two mirrors in turn and place them on the left and right sides of the reference mirror, and rotate the detection template to the seam between the to-be-adjusted mirror and the reference mirror. At this time, the grid lines of the template are observed from the design base point position.

[0022] (9) Adjust the vertical adjustment mechanism at the lower part of the to-be-adjusted mirror to adjust it to be horizontal with the reference mirror, and use the mirror image adjustment mechanism at the four corners of the mirror seat of the to-be-adjusted mirror to adjust the seam between the to-be-adjusted mirror and the reference mirror.

[0023] Adjust the seam.

[0024] (10) Use a feeler gauge to detect the upper, middle, and lower positions of the seam between the two reflecting mirrors. The seam

[0025] The detected position gap is qualified if it is between 0.5 - 1 mm.

[0026] (11) Observe the continuity of the image at the seam, and adjust the radial adjustment mechanism until the images on both sides of the seam

[0027] are consistent with the grid of the detection template and are continuous without omission, which is qualified.

[0028] (12) Adjust the reflecting mirror successively according to steps (8) - (11) until all adjustments are completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shows a schematic structural diagram of an apparatus for adjusting the seam of an ultra - large - size hard spherical reflecting mirror according to the present invention.

[0030] Figure 2 Shows a schematic diagram of the positioning of the first reflecting mirror (reference reflecting mirror).

[0031] Figure 3 Shows a schematic diagram of the positioning of the second and third reflecting mirrors.

[0032] Figure 4 Shows a schematic diagram of hoisting a certain reflecting mirror by the top gantry, where multiple reflecting mirrors of the apparatus for adjusting the seam of an ultra - large - size hard spherical reflecting mirror have been positioned. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] As Figure 1 shown, this apparatus for adjusting the seam of an ultra - large - size hard spherical reflecting mirror includes: a support frame 1, an operation platform 5, a top gantry 2, a standard detection template 3, a vertical adjustment mechanism 6, and a radial adjustment mechanism 4;

[0034] The support frame is annular, and the main body is formed by assembling and welding profiles. The circumferential direction is composed of multiple identical frames spliced together to form a semi - circular combined frame, and this combined frame is extended circumferentially according to the need of the number of reflecting mirror blocks.

[0035] The operation platform is connected to the outside of the support frame, and the surface of the operation platform is provided with anti - slip pedals for personnel to briefly support during operation.

[0036] The top gantry is a single-layer truss structure, located above the support frame assembly, and fixes and maintains the shape of the cross-section opening position of the support frame body assembly from above, and a rotating shaft is arranged at the middle position of the top gantry and connected with a standard detection template;

[0037] The standard detection template is formed according to the imaging screen of the visual system and is a vertical arc surface structure, and a standard grid plate is attached to the arc surface to inspect the joint effect of the hard mirror.

[0038] The vertical adjustment structure is located on the upper surface of the lower base of the support frame body and comprises a movable base, a screw rod and a fixed block.

[0039] The radial adjustment mechanism comprises a fixed nut, an adjustment screw rod, a locking nut and a transition piece, and the upper and lower two pieces of the radial adjustment mechanism are arranged uniformly in a ring along the support frame body, and the radial adjustment mechanism is distributed in two rings on the frame body and is distributed in a ring along the upper and lower flange positions of the mirror.

[0040] The present application can realize rapid positioning and reference adjustment of large-diameter spherical hard spherical mirrors, improve the assembly precision, increase the number of mirrors in the ring as needed, and improve the application range of the assembly tool.

[0041] Preferably, the inner surface of the support frame body is arc-shaped and matched with the mirror seat of the hard spherical mirror, and the main body structure is formed by butt welding of square tubes or rectangular tubes, which are divided into several identical frame modules in a ring, and the frame modules are expanded according to the assembly needs during use.

[0042] Preferably, the frame modules can be assembled into a full circle of 360° as needed.

[0043] Preferably, the lower part of the support frame body is provided with multiple groups of height-adjustable foot supports, and the height and horizontal state of each support frame body can be adjusted during assembly.

[0044] Preferably, the top gantry is a single-row truss structure located at the widest part of the cross-section of the support frame assembly, and a theoretical spherical center mark hole of the mirror is arranged at the middle position of the truss, and a rotating shaft is arranged at the lower end surface of the top gantry.

[0045] Preferably, the standard detection template is a vertical arc surface structure, the rear part of which is connected to the mark hole of the hard spherical mirror at the lower end surface of the top gantry through a rotating shaft, the standard detection template rotates around the rotating shaft in a ring, and a standard color grid for testing is attached to the outer arc surface of the standard detection template to inspect the imaging state of the assembled mirror joint.

[0046] Preferably, the vertical adjustment structure is located on the upper surface of the lower base of the support frame body, comprising: a movable base, a screw rod, and a fixed block, the movable base is connected with the adjusting screw rod through a ball head structure, the adjusting screw rod is designed with an outer hexagonal shape at the end, and the height of the movable base relative to the base of the support frame body is realized by rotating the elongation and shortening of the screw rod, and the movable foot plate is connected with the ball shaft and is self-adapted to the lower flange surface of the mirror seat.

[0047] Preferably, in the radial adjustment structure, the fixed nut is fixedly installed on the support frame body, the adjusting screw rod moves along the fixed nut, and the transition piece is connected with the mirror seat through bolts.

[0048] Preferably, the radial adjustment structure is composed of two pieces, and the two pieces are adjusted by moving simultaneously, and the radial adjustment mechanism is arranged in two rows on the upper and lower parts of the support frame body respectively, and each of the two groups adjusts one mirror.

[0049] The working method of the application is also provided, which comprises the following steps:

[0050] (1) Assembling the support frame body into a combined frame in the adjustment chamber, and adjusting the support frame body to be horizontal by the adjusting foot support;

[0051] (2) Combining, connecting and fixing the upper gantry with the support frame body, and connecting the detection template with the rotating shaft of the upper gantry;

[0052] (3) As shown in the figure, the first large-size hard spherical surface mirror 7 (reference mirror) Figure 2 is hoisted and rotated to the central position of the support frame body, and the left-right symmetry thereof is adjusted;

[0053] (4) Connecting the radial adjustment mechanism of each of the two groups on the upper and lower positions of the support frame body with the adjusting holes in the four corners of the mirror seat through bolts respectively;

[0054] (5) Adjusting the vertical adjustment mechanism, and adjusting the mirror to be horizontal;

[0055] (6) Measuring the four corner points of the hard mirror from the ball center mark position of the top gantry, adjusting the radial adjustment mechanism through the radial front and rear adjustment, so that the distance from the ball center to the four corner points of the mirror is equal;

[0056] (7) Installing a laser emitter at the ball center position, so that the laser irradiates on the spherical surface mirror, detecting the light spot of the reflected light irradiating on the whiteboard at the ball center position, so that the distance between the light spot and the ball center is less than 25 mm, and when the above operation is satisfied at 5 points on the mirror surface, the mirror is fixed and taken as the adjustment reference;

[0057] (7) Installing a laser emitter at the ball center position, so that the laser irradiates on the spherical surface mirror, detecting the light spot of the reflected light irradiating on the whiteboard at the ball center position, so that the distance between the light spot and the ball center is less than 25 mm, and when the above operation is satisfied at 5 points on the mirror surface, the mirror is fixed and taken as the adjustment reference;

[0058] (7) Installing a laser emitter at the ball center position, so that the laser irradiates on the spherical surface mirror, detecting the light spot of the reflected light irradiating on the whiteboard at the ball center position, so that the distance between the light spot and the ball center is less than 25 mm, and when the above operation is satisfied at 5 points on the mirror surface, the mirror is fixed and taken as the adjustment reference;

[0059] (8) Figure 3 As shown, the second reflector 8 and the third reflector 9 are hoisted in sequence and placed on the left and right sides of the reference reflector, respectively. The test template is then rotated to the seam between the reflector to be calibrated and the reference reflector. At this time, the grid lines of the template can be observed from the visual design base point.

[0060] (9) Adjust the vertical adjustment mechanism at the bottom of the mirror to be calibrated to make it level with the reference mirror, and use the mirror adjustment mechanism located at the four corners of the mirror mount to adjust the seam;

[0061] (10) Use a feeler gauge to check the upper, middle and lower positions of the seam between the two reflectors. The gap between the seam check positions is between 0.5-1mm to be considered qualified.

[0062] (11) Observe the continuity of the image at the seam, and adjust the radial adjustment mechanism until the images on both sides of the seam are consistent with the grid of the test template. Continuity without any gaps is considered qualified.

[0063] (12) Adjust the reflector step by step according to steps (8)-(11) (e.g.) Figure 4 (As shown), until all adjustments are completed.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A device for adjusting the gap of a super-large size hard spherical mirror, characterized in that: It includes: Support frame body (1), operating platform (5), top gantry (2), standard detection template (3), vertical adjustment mechanism (6), radial adjustment mechanism (4); The support frame body is annular, the main body is assembled and welded by section bars, a plurality of identical frame bodies are connected with each other to form a semicircular combined frame, and the combined frame is extended in the annular direction according to the number of mirror blocks. The operating platform is connected with the outside of the support frame body, and the surface of the operating platform is paved with anti-skid steps for briefly supporting personnel during operation. The top gantry is a single-layer truss structure, is located above the support frame combined body, fixes and maintains the shape of the cross-section opening position of the support frame combined body from above, and is provided with a rotating shaft at the middle position of the top gantry and is connected with the standard detection template. The standard detection template is formed according to the imaging screen of the visual system and is a vertical arc surface structure, and a standard grid plate is attached to the arc surface to test the joint effect of the hard mirror. The vertical adjustment mechanism is located on the upper surface of the lower base of the support frame body and comprises a movable base, a lead screw and a fixed block. The radial adjustment mechanism comprises a fixed nut, an adjusting lead screw, a locking nut and a transition piece, and the upper and lower pieces of the radial adjustment mechanism form a group and are arranged uniformly along the annular direction of the support frame body.

2. The device for adjusting the joint gap of a super-large size hard spherical mirror according to claim 1, characterized in that: The inner surface of the support frame body is arc-shaped and is matched with the hard spherical surface mirror seat, the main body structure is assembled and welded by square tubes or rectangular tubes, the annular direction is divided into a plurality of identical frame body modules, and the modules are expanded according to the assembly needs during use.

3. The device for adjusting the joint gap of a super-large size hard spherical mirror according to claim 2, characterized in that: The frame body modules are assembled into a 360° full circle.

4. The device for adjusting the joint gap of a super-large size hard spherical mirror according to claim 3, characterized in that: A plurality of groups of height-adjustable foot supports are arranged at the lower part of the support frame body, and the height and horizontal state of each support frame body can be adjusted during assembly.

5. The device for adjusting the joint gap of a super-large size hard spherical mirror according to claim 4, characterized in that: The top gantry is a single-row truss structure and is located at the widest part of the cross section of the support frame combined body, a theoretical spherical center mark hole of the mirror is arranged at the middle position of the truss, and a rotating shaft is arranged at the lower end surface of the top gantry.

6. The device for adjusting the joint gap of a super-large size hard spherical mirror according to claim 5, characterized in that: The standard detection template is a vertical arc surface structure, the rear part is connected to the mark hole of the hard spherical surface mirror at the lower end surface of the top gantry through the rotating shaft, the standard detection template rotates around the rotating shaft, and a standard color grid for testing is attached to the outer arc surface of the standard detection template to test the imaging state of the assembled mirror joint.

7. The device for adjusting the joint gap of a super-large size hard spherical mirror according to claim 6, characterized in that: The vertical adjustment mechanism is located on the upper surface of the lower base of the support frame body and comprises a movable base, a lead screw and a fixed block.

8. The device for adjusting the joint gap of a super-large size hard spherical mirror according to claim 7, characterized in that: In the radial adjustment mechanism, the fixed nut is fixedly installed on the support frame body, the adjusting lead screw moves forward and backward along the fixed nut, and the transition piece is connected with the mirror seat through bolts.

9. The device for adjusting the joint gap of a super-large size hard spherical mirror according to claim 8, characterized in that: The upper and lower pieces of the radial adjustment mechanism form a group and are adjusted by moving simultaneously, and the radial adjustment mechanism is arranged uniformly in two rows on the upper and lower parts of the support frame body, respectively.

10. The working method of the joint adjustment device for ultra-large size hard spherical mirror according to claim 9, characterized in that: It comprises the following steps: (1) Assemble the support frame body into a combined frame in the adjusting chamber, and adjust the support foot to support the support frame body to be horizontal; (2) Combine and connect the upper gantry with the support frame body, and connect the detection sample plate with the rotating shaft of the upper gantry; (3) Hoist and rotate the first super-large size hard spherical mirror to the central position of the support frame body, and adjust the left-right symmetry thereof; (4) Connect each two groups of radial adjustment mechanisms on the support frame in the up-down position with the adjustment holes in the four corners of the mirror seat through bolts; (5) Adjust the vertical adjustment mechanism, and adjust the mirror to be horizontal; (6) Measure the four corner points of the hard mirror from the spherical center mark position of the top gantry, and adjust the radial adjustment mechanism through the radial front and rear adjustment, so that the distance from the spherical center to the four corner points of the mirror is equal; (7) Install the laser emitter at the spherical center position, so that the laser irradiates on the spherical mirror, detect the light spot of the reflected light irradiating on the white board at the spherical center position, so that the distance between the light spot and the spherical center is less than 25mm, select 5 points on the mirror surface at random to perform the above operation, and when all the operations meet the requirements, fix the mirror, and take it as the adjustment reference; (8) Hoist and place two mirrors on the left and right sides of the reference mirror in sequence, and rotate the detection sample plate to the joint between the mirror to be calibrated and the reference mirror, at this time, the grid line of the sample plate is observed from the view design base point position; (9) Adjust the vertical adjustment mechanism at the lower part of the mirror to be calibrated, and adjust it to be horizontal with the reference mirror, and use the mirror image adjustment mechanism at the four corners of the mirror seat of the mirror to be calibrated to adjust the joint; (10) Detect the upper, middle and lower positions of the joint between the two mirrors by using the feeler gauge, and the gap between the joint detection positions is 0.5-1mm, which is qualified; (11) Observe the continuity of the image at the joint, adjust the radial adjustment mechanism, until the images on both sides of the joint are consistent with the grid of the detection sample plate, and the continuity is qualified; (12) Adjust the mirrors according to steps (8)-(11) in sequence, until all the adjustments are completed.

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