Attached seam adjusting device applied to oversized hard spherical reflector

Abstract

The adjustment method is applied to the adjustment device for the abutted seam of the oversized hard spherical reflector, the adjustment process of the abutted seam of the oversized hard spherical reflector can be obviously simplified, and the working efficiency is improved. 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 utility model relates to the technical field of optics, in particular to a joint adjustment device for an ultra-large-size hard spherical reflector. Background Art

[0002] Optical large-aperture hard spherical reflectors have a wide range of applications and have attracted widespread attention. They are generally made by splicing several reflectors together according to size requirements.

[0003] However, in the assembly process of optical large-aperture hard spherical reflectors, due to the large overall size and extremely high precision requirements, the assembly process is very complicated and time-consuming, the assembly effect is not ideal, and the rework rate is high. Utility Model Content

[0004] In order to overcome the defects of the prior art, the utility model provides a device for adjusting the seams of super-large-sized hard spherical reflectors, which can significantly simplify the adjustment process of the seams of super-large-sized hard spherical reflectors and improve work efficiency.

[0005] The technical solution of the utility model is: the device for adjusting the seam of an oversized hard spherical reflector comprises: a support frame (1), an operating platform (5), a top gantry (2), a standard test sample (3), a vertical adjustment mechanism (6), and a radial adjustment mechanism (4);

[0006] The support frame is annular, the main body is formed by welding and assembling profiles, and a plurality of identical frames are spliced ​​together to form a semicircular assembly frame, and the assembly frame is extended and increased in the annular direction according to the number of reflector blocks required;

[0007] The operating platform is connected to the outside of the support frame, and the surface of the operating platform is paved with anti-slip pedals for simple support of personnel during operation;

[0008] The top gantry is a single-layer truss structure, located above the support frame assembly, which fixes the cross-sectional opening position and maintains the shape of the support frame assembly from above. A rotating shaft is provided in the middle of the top gantry, which is connected to the standard test sample;

[0009] The standard test sample is manufactured according to the imaging screen of the vision system and is a vertical curved surface structure with a standard grid plate attached to the curved surface to test the joint effect of the hard mirror;

[0010] The vertical adjustment structure is located on the upper surface of the base at the lower part of the support frame, and includes: a movable chassis, a screw rod, and a fixed block;

[0011] The radial adjustment mechanism includes: a fixing nut, an adjusting screw, a locking nut, and a transition piece. The upper and lower pieces of the radial adjustment mechanism form a group and are evenly arranged along the circumferential direction of the support frame. The radial adjustment mechanism is distributed in two rings on the frame and is distributed circumferentially along the upper and lower flange positions of the reflector.

[0012] The utility model can realize fast positioning and reference adjustment of large-aperture spherical hard spherical reflectors, thereby improving assembly accuracy; the number of reflectors can be increased in the annular direction as needed, thereby increasing the application range of assembly tooling; therefore, the adjustment process of the joints of oversized hard spherical reflectors can be significantly simplified, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The schematic diagram of the structure of the joint adjustment device for a super-large-sized hard spherical reflector according to the utility model is shown.

[0014] Figure 2 A schematic diagram showing the positioning of the first reflector (reference reflector) is shown.

[0015] Figure 3 A schematic diagram showing the positioning of the second and third reflectors is shown.

[0016] Figure 4 A schematic diagram of a reflector being hoisted by a top gantry is shown, wherein a plurality of reflectors have been positioned by a joint adjustment device for ultra-large hard spherical reflectors. DETAILED DESCRIPTION

[0017] like Figure 1 As shown, the device for adjusting the seam of an oversized hard spherical reflector comprises: a support frame 1, an operating platform 5, a top gantry 2, a standard test sample 3, a vertical adjustment mechanism 6, and a radial adjustment mechanism 4;

[0018] The support frame is annular, the main body is formed by welding and assembling profiles, and a plurality of identical frames are spliced ​​together to form a semicircular assembly frame, and the assembly frame is extended and increased in the annular direction according to the number of reflector blocks required;

[0019] The operating platform is connected to the outside of the support frame, and the surface of the operating platform is paved with anti-slip pedals for simple support of personnel during operation;

[0020] The top gantry is a single-layer truss structure, located above the support frame assembly, which fixes the cross-sectional opening position and maintains the shape of the support frame assembly from above. A rotating shaft is provided in the middle of the top gantry, which is connected to the standard test sample;

[0021] The standard test sample is manufactured according to the imaging screen of the vision system and is a vertical curved surface structure with a standard grid plate attached to the curved surface to test the joint effect of the hard mirror;

[0022] The vertical adjustment structure is located on the upper surface of the base at the lower part of the support frame, and includes: a movable chassis, a screw rod, and a fixed block;

[0023] The radial adjustment mechanism includes: a fixing nut, an adjusting screw, a locking nut, and a transition piece. The upper and lower pieces of the radial adjustment mechanism form a group and are evenly arranged along the circumferential direction of the support frame. The radial adjustment mechanism is distributed in two rings on the frame and is distributed circumferentially along the upper and lower flange positions of the reflector.

[0024] The utility model can realize fast positioning and reference adjustment of large-aperture spherical hard spherical reflectors, thereby improving assembly accuracy; the number of reflectors can be increased in the annular direction as needed, thereby increasing the application range of assembly tooling; therefore, the adjustment process of the joints of oversized hard spherical reflectors can be significantly simplified, thereby improving work efficiency.

[0025] Preferably, the inner surface of the support frame is arc-shaped, which is compatible with the hard spherical reflector seat. The main structure is welded from square tubes or rectangular tubes, and is circumferentially divided into several identical frame modules, which can be expanded according to assembly needs during use.

[0026] Preferably, the frame modules can be assembled into a maximum 360° full circle as required.

[0027] Preferably, a plurality of groups of height-adjustable ground supports are arranged at the lower part of the support frame, and the height and horizontal state of each support frame can be adjusted during assembly.

[0028] Preferably, the top gantry is a single-row truss structure located at the widest part of the cross section of the support frame assembly, a theoretical spherical center marking hole of the reflector is provided in the middle of the truss, and a rotating shaft is arranged on the lower end surface of the top gantry.

[0029] Preferably, the standard test template is a vertical arc surface structure, the rear part of which is connected to the marking hole of the hard spherical reflector on the lower end face of the top gantry through a rotating axis. The standard test template rotates circumferentially around the rotating axis, and a standard color grid for testing is pasted on the outer arc surface of the standard test template to inspect the imaging state of the assembled reflector seams.

[0030] Preferably, the vertical adjustment structure is located on the upper surface of the lower base of the support frame, and includes: a movable chassis, a screw rod, and a fixed block. The movable chassis is connected to the adjusting screw rod through a ball head structure. The end of the adjusting screw rod is designed with an external hexagonal shape. The height of the movable chassis relative to the base of the support frame is achieved by extending and shortening the rotating screw rod. The movable foot plate is connected with a ball shaft and adaptively adapts to the flange surface under the mirror mount.

[0031] Preferably, in the radial adjustment structure, the fixing nut is fixedly mounted on the support frame, the adjusting screw moves forward and backward along the fixing nut, and the transition piece is connected to the mirror seat by bolts.

[0032] Preferably, the upper and lower parts of the radial adjustment structure form a group and move simultaneously for adjustment. The radial adjustment mechanism is evenly arranged in two rows at the upper and lower parts of the support frame, and two groups at the upper and lower parts adjust one reflector.

[0033] Also provided is a working method of the joint adjustment device applied to an oversized hard spherical reflector, which comprises the following steps:

[0034] (1) Assemble the support frame into a combined frame in the adjustment room, and adjust the anchor support to adjust the support frame to a horizontal level;

[0035] (2) The upper gantry is assembled and fixed with the support frame, and the test sample is connected with the rotating shaft of the upper gantry;

[0036] (3) Figure 2 As shown, the first oversized hard spherical reflector 7 (reference reflector)

[0037] Lift it to the center of the support frame and adjust it to be symmetrical.

[0038] (4) Connect the two sets of radial adjustment mechanisms at the upper and lower positions of the support frame to the adjustment holes at the four corners of the mirror base through bolts;

[0039] (5) Adjust the vertical adjustment mechanism to adjust the reflector to a horizontal level;

[0040] (6) Measure the four corner points of the hard reflector from the center mark position of the top gantry.

[0041] Adjust the radial adjustment mechanism forward and backward to make the distance from the center of the sphere to the four corners of the reflector equal; (7) Install a laser transmitter at the center of the sphere so that the laser shines on the spherical reflector to detect the reflection.

[0042] The light beam is irradiated on the light spot on the white board at the center of the sphere, so that the distance between the light spot and the center of the sphere is less than 25 mm. Five points are randomly selected on the surface of the reflector to perform the above operation. When all the points meet the requirements, the reflector is fixed and used as the adjustment reference.

[0043] (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, and the test sample is rotated to the joint between the reflector to be calibrated and the reference reflector. At this time, the grid lines of the sample are observed from the visual design base point position;

[0044] (9) Adjust the vertical adjustment mechanism at the bottom of the reflector to be calibrated to make it level with the reference reflector, and use the mirror adjustment mechanisms at the four corners of the reflector base to align the joints.

[0045] Line adjustment;

[0046] (10) Use a feeler gauge to check the top, middle and bottom positions of the joints between the two reflectors.

[0047] The measured position gap is qualified if it is between 0.5-1mm;

[0048] (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 test sample grid and are continuous without missing pieces.

[0049] (12) According to steps (8)-(11), adjust the reflector successively (such as Figure 4 until all adjustments are complete.

[0050] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. Applicable to the joint adjustment device of super-large hard spherical reflector, characterized by: It includes: Support frame (1), operating platform (5), top gantry (2), standard test sample (3), vertical adjustment mechanism (6), radial adjustment mechanism (4); The support frame is annular, the main body is formed by welding and assembling profiles, and a plurality of identical frames are spliced ​​together to form a semicircular assembly frame, and the assembly frame is extended and increased in the annular direction according to the number of reflector blocks required; The operating platform is connected to the outside of the support frame, and the surface of the operating platform is paved with anti-slip pedals for simple support of personnel during operation; The top gantry is a single-layer truss structure, located above the support frame assembly, which fixes the cross-sectional opening position and maintains the shape of the support frame assembly from above. A rotating shaft is provided in the middle of the top gantry, which is connected to the standard test sample; The standard test sample is manufactured according to the imaging screen of the vision system and is a vertical curved surface structure with a standard grid plate attached to the curved surface to test the joint effect of the hard mirror; The vertical adjustment mechanism is located on the upper surface of the base at the lower part of the support frame, and includes: a movable chassis, a screw rod, and a fixed block; The radial adjustment mechanism includes: a fixing nut, an adjusting screw, a locking nut, and a transition piece. The upper and lower pieces of the radial adjustment mechanism form a group and are evenly arranged along the circumferential direction of the support frame. The radial adjustment mechanism is distributed in two rings on the frame and is distributed circumferentially along the upper and lower flange positions of the reflector.

2. The device for adjusting the seam of an oversized hard spherical reflector according to claim 1 is characterized in that: The inner surface of the support frame is arc-shaped, which is compatible with the hard spherical reflector seat. The main structure is welded from square tubes or rectangular tubes, and is divided into several identical frame modules in the circumferential direction, which can be expanded according to assembly needs during use.

3. The device for adjusting the seam of an oversized hard spherical reflector according to claim 2 is characterized in that: The frame modules are assembled into a 360° full circle.

4. The device for adjusting the seam of an oversized hard spherical reflector according to claim 3 is characterized in that: A plurality of height-adjustable ground supports are arranged at the lower part of the support frame, and the height and horizontal state of each support frame can be adjusted during assembly.

5. The device for adjusting the seam of an oversized hard spherical reflector according to claim 4 is characterized in that: The top gantry is a single-row truss structure located at the widest part of the support frame assembly cross section. A theoretical spherical center mark hole of the reflector is provided in the middle of the truss, and a rotating shaft is arranged on the lower end surface of the top gantry.

6. The device for adjusting the seam of an oversized hard spherical reflector according to claim 5 is characterized in that: The standard test sample is a vertical arc surface structure, the rear part of which is connected to the marking hole of the hard spherical reflector on the lower end face of the top gantry through a rotating shaft. The standard test sample rotates circumferentially around the rotating shaft. A standard color grid for testing is pasted on the outer arc surface of the standard test sample to inspect the imaging status of the assembled reflector seams.

7. The device for adjusting the seam of an oversized hard spherical reflector according to claim 6 is characterized in that: The vertical adjustment mechanism is located on the upper surface of the lower base of the support frame, and includes: a movable chassis, a screw rod, and a fixed block. The movable chassis is connected to the adjusting screw rod through a ball head structure. The end of the adjusting screw rod is designed with an external hexagonal shape. The height of the movable chassis relative to the base of the support frame is achieved by extending and shortening the rotating screw rod. The movable foot plate is connected with a ball shaft and adaptively adapts to the flange surface under the mirror seat.

8. The device for adjusting the seam of an oversized hard spherical reflector according to claim 7 is characterized in that: In the radial adjustment mechanism, the fixing nut is fixedly mounted on the support frame, the adjusting screw moves forward and backward along the fixing nut, and the transition piece is connected to the mirror seat by bolts.

9. The device for adjusting the seam of an oversized hard spherical reflector according to claim 8 is characterized in that: The radial adjustment mechanism comprises two upper and lower parts which form a group and move simultaneously for adjustment. The radial adjustment mechanism is evenly arranged in two rows at the upper and lower parts of the support frame, and two groups at the upper and lower parts adjust a reflector.

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