CN115728905A - Reflector surface shape regulating and controlling device - Google Patents
Reflector surface shape regulating and controlling device Download PDFInfo
- Publication number
- CN115728905A CN115728905A CN202211486066.7A CN202211486066A CN115728905A CN 115728905 A CN115728905 A CN 115728905A CN 202211486066 A CN202211486066 A CN 202211486066A CN 115728905 A CN115728905 A CN 115728905A
- Authority
- CN
- China
- Prior art keywords
- reflector
- frame
- mirror
- actuator
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention provides a reflector surface shape regulating device, which is used for solving the technical problems that the existing multipoint active regulating device is high in hardware cost and complex in structure. The reflector surface shape regulating device comprises a base, a rotary table, two support frames and a mirror frame, wherein the rotary table is horizontally arranged on the base in a rotating manner, the two support frames are fixed on two sides of the rotary table, and the mirror frame is arranged between the two support frames and can be adjusted in a pitching manner; the mirror frame is a hollow cylinder and is used for mounting a reflector to be measured; the front end surface of the mirror frame is provided with at least three pressing plates, and the rear end surface is provided with an actuator mounting rack; the actuator mounting frame is of a radioactive frame structure, a fixed actuator component is arranged in the center of the actuator mounting frame, at least 3 branches are radiated outwards, and movable actuator components are arranged on the branches; and one end of the fixed actuator component and one end of the movable actuator component are both used for being connected with the rear end surface of the reflector to be measured, and the expected surface shape is obtained by applying pressure or pulling force to the rear end surface of the reflector to be measured through the rear end surface of the reflector to be measured.
Description
Technical Field
The invention relates to a reflector regulating and controlling device, in particular to a reflector surface shape regulating and controlling device.
Background
At present, the aperture of the optical element and the system is getting larger and larger in order to obtain higher resolution and light collecting capability. Relevant researches show that when the diameter-thickness ratio of the reflector is unchanged, along with the increase of the aperture, the deformation amount generated by the self weight of the reflector is increased along with the square of the aperture, so that the surface shape of the reflector is seriously influenced, and the imaging quality of an optical system is further influenced.
To address this problem, there are two approaches to solve: the first idea is to perform sufficient simulation optimization at the initial stage of structural design, and design a reasonable light-weight reflector structure and a support structure thereof so as to avoid the deformation of the reflector. The other idea is to adopt the regulation and control idea of active optics, and a multipoint active regulation device is arranged at the back of a main mirror of a large-caliber optical system, so that the multipoint active regulation device is used as a wavefront compensation link of the optical system, and the surface shape of the main mirror is actively regulated and controlled according to the actual imaging effect of the optical system so as to improve the imaging quality of the system. At present, the existing multipoint active adjusting device mainly adopts a hydraulic system and a piezoelectric ceramic system, and has higher hardware cost and more complex structure.
Disclosure of Invention
The invention aims to solve the technical problems that the existing multipoint active adjusting device has higher hardware cost and more complex structure, and provides a reflector surface shape adjusting device.
In order to achieve the above object, the technical solution of the present invention is as follows:
a reflector surface shape adjusting device is characterized by comprising a base, a rotary table, two supporting frames and a mirror frame, wherein the rotary table can be horizontally arranged on the base in a rotating way, the two supporting frames are fixed on the two sides of the rotary table, and the mirror frame can be arranged between the two supporting frames in a pitching adjusting way;
the mirror frame is a hollow cylinder and is used for mounting a reflector to be tested; the front end face of the mirror frame is provided with at least three pressing plates for axial positioning of the reflector to be measured, and the rear end face is provided with an actuator mounting rack; the actuator mounting frame is of a radioactive frame structure, a fixed actuator component is arranged at the center of the actuator mounting frame, at least 3 branches uniformly distributed along the circumference are radiated outwards at the center of the actuator mounting frame, and a movable actuator component capable of moving along the extension direction of the branches is arranged on each branch;
and one end of the fixed actuator component and one end of the movable actuator component are both used for being connected with the rear end surface of the reflector to be tested, and pressure or pulling force is applied to the reflector to be tested through the rear end surface of the reflector to be tested so as to obtain an expected surface shape.
Further, the movable actuator assembly comprises a first hand wheel, a first stud, a sliding seat, a first sliding block, a first guide pin, a first execution rod, a first tension plate and a first bonding plate;
a straight elongated slot is formed on a branch of the actuator mounting rack;
the sliding seat is arranged as a hollow boss, the opening of the hollow end of the sliding seat faces the direction of the linear long groove, and the sliding seat is connected with the actuator mounting frame branch in a sliding manner;
one end of the first sliding block is in small-gap sliding fit with the inner wall of the hollow boss of the sliding seat, and the other end of the first sliding block penetrates through the straight elongated slot to be fixedly connected with one end of the first actuating rod;
the sliding seat is provided with at least one first straight groove, the head part of the first guide pin is matched with the first straight groove, and the threaded end of the first guide pin is connected with the first sliding block and used for guiding the first sliding block when the first sliding block moves;
the first double-ended stud comprises a left shaft end and a right shaft end, wherein two sections of threads with opposite directions are arranged on the left shaft end and are respectively a first left-handed thread and a first right-handed thread, the first left-handed thread is in threaded fit with the first sliding block, and the first right-handed thread is in threaded fit with the sliding seat; the first stud right shaft section is used for connecting the first hand wheel;
the other end of the first actuating rod is connected with one end of a first bonding plate through a first tension plate, and the other end of the first bonding plate is used for being bonded with the corresponding position of the reflector to be measured.
Furthermore, each branch of the actuator mounting frame is provided with a pair of radial T-shaped chutes;
a T-shaped screw assembly is arranged on the sliding seat corresponding to the T-shaped sliding groove;
the T-shaped screw rod component is connected with the T-shaped sliding groove in a sliding mode and used for driving the movable actuator component to move along the linear long groove.
Further, the fixed actuator assembly comprises a second hand wheel, a second stud, a fixed seat, a second sliding block, a second guide pin, a second execution rod, a second tension plate and a second bonding plate;
a central hole is formed in the center of the actuator mounting frame;
the fixed seat is a hollow boss, the opening of the hollow end of the fixed seat faces the direction of the central hole of the actuator mounting frame, and the fixed seat is fixedly connected with the actuator mounting frame;
one end of the second sliding block is in small-gap sliding fit with the inner wall of the hollow boss of the fixed seat, and the other end of the second sliding block penetrates through the center hole of the actuator mounting frame and is fixedly connected with one end of the second actuating rod;
the fixed seat is provided with at least one second straight groove, the head part of the second guide pin is matched with the second straight groove, and the threaded end of the second guide pin is matched with the second sliding block and used for guiding the second sliding block when the second sliding block moves;
the second stud comprises a left shaft end and a right shaft end, two sections of threads with opposite directions are arranged on the left shaft end and are respectively a second left-hand thread and a second right-hand thread, the second left-hand thread is in threaded fit with the second sliding block, and the second right-hand thread is in threaded fit with the fixed seat; the second stud right shaft section is used for connecting the second hand wheel;
the other end of the second actuating rod is connected with one end of a second bonding plate through a second tension plate, and the other end of the second bonding plate is used for being bonded with the central position of the reflector to be measured.
Further, the movable actuator assembly further comprises a first micro load cell;
the other end of the first sliding block penetrates through the straight long groove to be fixedly connected with one end of a first micro force transducer, and the other end of the first micro force transducer is connected with one end of a first execution rod;
the stationary actuator assembly further comprises a second micro load cell;
the other end of the second sliding block penetrates through a center hole of the actuator mounting frame to be fixedly connected with one end of a second micro force transducer, and the other end of the second micro force transducer is connected with one end of a second execution rod.
Furthermore, at least one direction adjusting assembly is arranged on the base, and the acting end of the direction adjusting assembly is abutted against the rotary table and used for driving the rotary table to horizontally rotate so as to adjust and lock the azimuth angle of the reflector to be measured;
the turntable is provided with at least one pitching adjusting assembly, and the acting end of the pitching adjusting assembly is abutted to the metering mirror frame and used for driving the mirror frame to rotate in a pitching manner so as to adjust and lock the pitch angle of the reflector to be measured.
Further, the quick-release nut is also included;
a plurality of cylindrical surfaces for supporting, a plurality of cylindrical surfaces for cementing and a plurality of mounting and adjusting surfaces are radially and alternately arranged on the inner wall of the mirror frame;
the quick-release screw sleeve is connected to the inner surface of the cylindrical surface for cementing in a threaded fit manner with the side wall of the frame; the quick-release screw sleeve is arranged into a hollow structure and is used for injecting an adhesive through the hollow structure and enabling the adhesive to adhere the reflector to be tested on the inner wall of the mirror frame, and when the reflector to be tested and the mirror frame need to be detached due to stress generated by curing and shrinking of the adhesive in the assembling process, the quick-release screw sleeve can realize the quick detachment of the rubber column;
the central angle of the supporting cylindrical surface is larger than that of the cementing cylindrical surface, namely the width of the supporting cylindrical surface is larger than that of the cementing cylindrical surface, and the supporting cylindrical surface is used for realizing stable support on the reflector to be measured;
and the installation and adjustment surface is provided with an installation and adjustment hole for installing and adjusting the reflector to be detected through the installation and adjustment hole.
Furthermore, a polytetrafluoroethylene base plate is arranged on the supporting cylindrical surface of the mirror frame and used for forming V-shaped circumferential positioning on the supporting cylindrical surface of the metering mirror frame through the elasticity of the polytetrafluoroethylene base plate when the to-be-measured reflector is installed.
Furthermore, the device also comprises an azimuth shaft and at least two limit screw groups;
the turntable is provided with at least one first through hole;
a group of radial ball bearings are arranged at corresponding positions on the base;
the upper section of the azimuth shaft is in transition fit with the first through hole, and the lower section of the azimuth shaft is matched with the radial ball bearing, so that the rotary table can rotate relative to the base;
the limiting screw group comprises a screw, two polytetrafluoroethylene gaskets and a steel gasket;
the rotary table is provided with at least two arc-shaped grooves, and the screw penetrates through the steel pad, the two polytetrafluoroethylene pads and the arc-shaped grooves in sequence and then is in threaded connection with the base for limiting after the rotary table rotates.
The limiting screw group penetrates through the arc-shaped groove, and the steel pad is abutted to the upper surface of the base.
Further, two horizontal shafts are also included;
a second through hole with an opening is formed in the side face of the upper end of the support frame, a screw is arranged on the support frame corresponding to the opening of the second through hole, and the screw and the second through hole are distributed in a horizontal cross shape;
one end of the horizontal shaft is matched and positioned with the side wall of the mirror frame through the spigot, the other end of the horizontal shaft is matched with the second through hole in the support frame, and the aperture of the second through hole is tightly pressed and adjusted through a screw so as to change the tightness of the fit of the shaft hole, so that the hole shaft is tightly held.
Compared with the prior art, the invention has the beneficial effects that:
1. the reflector surface shape regulating device provided by the invention innovatively adopts a mechanical multipoint active regulating device, the fixed actuator component and the plurality of movable actuator components are arranged on the mirror frame and used for applying different actuating forces to different positions of a reflector to be measured so as to meet the surface shape regulating requirement, the mechanical multipoint active regulating device greatly reduces the hardware cost of the regulating device, and has the advantages of simple structure, convenience in operation and high controllability in the regulating process.
2. According to the reflector surface shape regulating device provided by the invention, the first micro force measuring sensor is arranged on the movable actuator assembly, and the second micro force measuring sensor is arranged on the fixed actuator assembly, so that the metering regulation of the reflector to be measured can be realized, and the reflector surface shape regulating precision is improved.
3. According to the reflector surface shape regulating device provided by the invention, the orientation regulating assembly is arranged on the base, the pitching regulating assembly is arranged on the rotary table, the azimuth angle and the pitching angle of the reflector to be measured can be regulated to realize the posture regulation of the reflector to be measured, and meanwhile, the reflector surface shape regulating device is also used for realizing the optical axis alignment during closed-loop regulation.
4. According to the reflector surface shape regulating device provided by the invention, the quick-release threaded sleeve connected with the surface of the cementing cylindrical surface is arranged on the mirror frame, the quick-release threaded sleeve is of a hollow structure and is used for injecting an adhesive through the hollow structure and enabling the adhesive to adhere the reflector to be detected on the inner wall of the mirror frame, and when the reflector to be detected generates stress due to curing and shrinkage of the adhesive in the assembling process and needs to be detached from the mirror frame, the adhesive column can be quickly detached.
5. According to the reflector surface shape regulating device provided by the invention, the polytetrafluoroethylene base plate is arranged on the cylindrical surface for supporting the mirror frame, so that V-shaped circumferential positioning can be formed when the reflector to be measured is installed, and the micro-stress assembly of the reflector to be measured can be realized by combining the positioning of the pressing plate, the movable actuator component and the fixed actuator component on the reflector to be measured, so that the reflector to be measured has a good initial surface shape.
Drawings
FIG. 1 is a schematic front view of a reflector surface shape control device according to an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a frame for glasses according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a quick release nut and a cementing cylinder in an embodiment of the present invention;
FIG. 5 is a schematic diagram of a back surface structure of an embodiment of a mirror surface shape control device according to the present invention;
FIG. 6 is a left side view of FIG. 2;
FIG. 7 is a schematic structural view of a movable actuator assembly in an embodiment of the present invention;
FIG. 8 is a schematic view of a stationary actuator assembly according to an embodiment of the present invention.
The specific reference numbers are as follows:
1-a reflector to be measured;
2-a base, 21-an azimuth adjusting component, 211-an azimuth fine adjusting nut, 212-an azimuth fine adjusting screw rod, 22-a radial ball bearing and 23-a sink slot hole;
3-a turntable, 31-a pitch adjusting component, 311-a pitch fine-tuning nut, 312-a pitch fine-tuning screw, 32-a first through hole and 33-an arc-shaped groove;
4-support frame, 41-second through hole, 42-screw;
5-a picture frame, 51-a pressing plate, 52-an actuator mounting frame, 521-a fixed actuator assembly, 5211-a second hand wheel, 5212-a second stud, 5213-a fixed seat, 52131-a second linear groove, 5214-a second sliding block, 5215-a second guide pin, 5216-a second micro load cell, 5217-a second actuating rod, 5218-a second tension plate, 5219-a second adhesive plate, 522-a movable actuator assembly, 5221-a first hand wheel, 5222-a first stud, 5223-a sliding seat, 52231-a first linear groove, 5224-a first sliding block, 5225-a first guide pin, 5226-a first micro load cell, 5227-a first actuating rod, 5228-a first tension plate, 5229-a first adhesion plate, 5230-a T-type screw assembly, 523-a linear groove, a 524-T-type sliding groove, 53-a cylindrical surface for supporting, 54-a cementing cylindrical surface, 55-a mounting hole, 551-a mounting hole, and a third adjusting interface;
6-quick-release thread insert; 7-azimuth axis; 8-horizontal axis; 9-limit screw group.
Detailed Description
To further clarify the advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
As shown in fig. 1 and 2, a mirror surface shape adjusting and controlling device is used for providing support for a mirror 1 to be measured and applying an actuating force to change the surface shape of the mirror 1 to be measured. Comprises a base 2, a turntable 3, two support frames 4, a spectacle frame 5, a quick-release threaded sleeve 6, an azimuth shaft 7, two horizontal shafts 8 and two groups of limit screw groups 9. The turntable 3 is provided with a first through hole 32,a group of radial ball bearings 22 are arranged at corresponding positions on the base 2, the upper section of the azimuth shaft 7 is in transition fit with the first through hole 32, the lower section of the azimuth shaft 7 is matched with the radial ball bearings 22, the rotary table 3 is in surface contact with the base 2, partial contact of the contact surface is realized through milling, and finally the rotary table 3 can rotate relative to the base 2. In order to fix the turntable 3 after rotating to a proper position relative to the base 2, the turntable 3 is provided with two arc-shaped grooves 33 in the embodiment, the limit screw group 9 comprises a screw, two polytetrafluoroethylene gaskets and a steel pad, and the screw sequentially penetrates through the steel pad, the two polytetrafluoroethylene gaskets and the arc-shaped grooves 33 and then is in threaded connection with the base 2 and used for limiting after the turntable 3 finishes rotating; the provision of teflon shims and steel pads may keep the turntable 3 stable whilst reducing damping. In particular, the base 2 of the present invention is also provided with a plurality of countersunk holes 23 for connection to an external optical platform. The two support frames 4 are respectively fixed at two ends of the rotary table 3, the side surface of the upper end of each support frame 4 is provided with a second through hole 41 with an opening, a screw 42 is arranged at a position, corresponding to the opening of the second through hole 41, on each support frame 4, and the screws 42 and the second through holes 41 are distributed in a horizontal cross shape; two 8 one ends of horizontal axis and 5 lateral walls of picture frame pass through tang cooperation location, and the other end cooperates with second through-hole 41 on the support frame 4, compresses tightly through screw 42 and adjusts the second through-hole 41 aperture size in order to change the shaft hole cooperation elasticity for the hole axle is held tightly. As shown in fig. 3, the mirror frame 5 is a hollow cylinder for mounting the reflector 1 to be measured, in this embodiment, the reflector 1 to be measured is a plane reflector with a diameter of
Thickness of 40mm, ratio of diameter to thickness: 10, mirror profile RMS < λ/50 (λ =632.8 μm), and the mirror 1 to be measured may be a spherical mirror or an aspherical mirror in other embodiments of the present invention, and the parameters are not limited thereto. A plurality of cylindrical support surfaces 53, cylindrical cementing surfaces 54, and adjustment mounting surfaces 55 are radially staggered on the inner wall of the frame 5. The quick release thread insert 6 is connected to the inner surface of the cementing cylindrical surface 54 in a threaded fit with the side wall of the spectacle frame 5, as shown in fig. 4, the quick release thread insert 6 is provided with a hollow structure for injecting an adhesive through the hollow structure and allowing the adhesive to be treatedSurvey speculum 1 bonds on 5 inner walls of picture frame, and when speculum 1 that awaits measuring produced stress because of adhesive solidification shrink and need split speculum 1 that awaits measuring and picture frame 5 in the assembling process, can realize gluing the quick dismantlement of post. The central angle of the cylindrical supporting surface 53 is greater than the central angle of the cylindrical cementing surface 54, that is, the width of the cylindrical supporting surface 53 is greater than the width of the cylindrical cementing surface 54, so as to stably support the reflecting mirror 1 to be measured. The supporting cylindrical surface 53 is provided with a teflon backing plate for forming V-shaped circumferential positioning on the supporting cylindrical surface 245 of the mirror frame 5 by the elasticity of the teflon backing plate when the mirror 1 to be measured is mounted. The installation adjustment surface 55 is provided with an installation adjustment hole for adjusting the reflector 1 to be measured through the installation adjustment hole after the installation is completed. Three first mounting interfaces are arranged on the front end face of the mirror frame 5 and are respectively used for mounting three pressing plates 51 and realizing the axial positioning of the reflector 1 to be measured; preferably, in this embodiment, three pressing plates 51 extend into the inner wall of the lens frame 5 through the first mounting interface, and a polytetrafluoroethylene gasket with a thickness of 0.1mm is bonded to one end of the pressing plate 51 extending into the inner wall of the lens frame 5, so as to reduce damping when the pressing plate abuts against the reflector 1 to be measured. As shown in fig. 5 and 6, a second mounting interface is disposed on the rear end surface of the mirror frame 5 for mounting the actuator mounting bracket 52; a third mounting interface 56 is arranged above the lens frame 5, and is used for mounting a reference reflector group for expansion in the later expansion application. The actuator mounting frame 52 is a radioactive frame structure, a central hole is formed in the center of the actuator mounting frame, and 6 branch circuits uniformly distributed along the circumference are radially arranged at the center of the actuator mounting frame; a fixed actuator assembly 521 is arranged on the central hole, and the fixed actuator assembly 521 is fixedly connected to the actuator mounting frame 52 through a connecting screw hole; each branch of the actuator mounting frame 52 is provided with a pair of radial T-shaped chutes 524 and a straight elongated slot 523 positioned in the middle of each pair of T-shaped chutes 524; the linear slot 523 is provided with a movable actuator component 522 which can move along the linear slot 523, and a T-shaped screw component 5230 is arranged on the movable actuator component 522 corresponding to the T-shaped sliding groove 524, and is used for matching and sliding connection with the T-shaped sliding groove 524, so that the movable actuator component 522 is driven to move along the radial direction of the linear slot 523. A fixed actuator assembly 521, three circumferentially equispaced pressure plates 51 and 6The movable actuator assembly 522 is used for end face positioning of the reflector 1 to be measured, and the end face positioning is combined with the V-shaped circumference positioning, so that micro-stress assembly of the reflector to be measured can be realized, and a good initial surface shape is provided. On the base 2 with be provided with two position adjusting part 21, set up to two position fine setting nuts 211 and two corresponding position fine setting screw rods 212 that are located base 2 one end position in this embodiment, wherein, two position fine setting nuts 211 are located the front and back both sides of revolving stage 3 respectively, two position fine setting screw rods 212 in corresponding position fine setting nuts 211 with revolving stage 3 butt for drive revolving stage 3 horizontal rotation is with the azimuth of regulation and locking speculum 1 that awaits measuring. The turntable 3 is provided with two pitching adjusting components 31, in this embodiment, two pitching fine-tuning nuts 311 and two corresponding pitching fine-tuning screws 312 are provided at the middle position of the turntable, wherein the two pitching fine-tuning nuts 311 are respectively located at the front side and the rear side of the mirror frame 5, and the two pitching fine-tuning screws 312 are screwed into the corresponding pitching fine-tuning nuts 311 to abut against the mirror frame 5, so as to drive the mirror frame 5 to pitch and rotate to adjust and lock the pitch angle of the reflector 1 to be measured.
The fixed actuator assembly 521 and the movable actuator assembly 522 are important components of the mirror surface shape control apparatus of the present invention, and the specific structure thereof will be further described below.
As shown in fig. 7, the movable actuator assembly 522 includes a first hand wheel 5221, a first stud 5222, a slide 5223, a first slider 5224, a first guide pin 5225, a first micro load cell 5226, a first actuator rod 5227, a first tension plate 5228 and a first adhesive plate 5229. The sliding seat 5223 is a hollow boss, the opening of the hollow end of the sliding seat 5223 faces the direction of the straight long groove 526, and two sides of the sliding seat 5223 are respectively in sliding connection and matching with the T-shaped sliding grooves 524 on the branches through the T-shaped screw rod assembly 5230, so that the movable actuator assembly 522 can radially move along the T-shaped sliding grooves 524 of the branches and can be locked at a preset position; specifically, the T-screw assembly 5230 is composed of a T-screw, a hexagonal nut, and a flat washer. One end of the first sliding block 5224 is in sliding fit with the inner wall of the hollow boss of the sliding seat 5223 by a small gap, and the other end of the first sliding block passes through the linear long groove 526 and is fixedly connected with one end of the first miniature force measuring sensor 5226; the head of the first guide pin 5225 is a cylindrical section, two side walls of the sliding seat 5223 are respectively provided with a first straight groove 52231, the cylindrical section of the head of the first guide pin 5225 is matched with the first straight groove 52231, and the threaded end of the first guide pin 5225 is connected with the first sliding block 5224 and is used for guiding the first sliding block 5224 when moving; the first stud 5222 comprises a left shaft end and a right shaft end, wherein the left shaft end is provided with two sections of threads with opposite directions, namely a first left-hand thread and a first right-hand thread, the first left-hand thread is in threaded fit with the first slider 5224, and the first right-hand thread is in threaded fit with the sliding seat 5223; the right shaft section of the first stud 5222 is used for connecting a first hand wheel 5221, and the first hand wheel 5221 is in small clearance fit with the right shaft section of the first stud 5222 and transmits torque through a pin; the other end of the first micro load cell 5226 is connected to one end of a first actuating rod 5227; the other end of the first actuating rod 5227 is connected to one end of the first adhesive plate 5229 through a first tension plate 5228, the first tension plate 5228 in this embodiment is composed of an upper cover plate and a lower cover plate, and the first actuating rod 5227 is used for penetrating through and adhering to the first adhesive plate 5229; the other end of the first adhesive plate 5229 is used for adhering to a corresponding position of the mirror 1 to be measured. The specific implementation principle of the movable actuator assembly 522 is as follows: when the first hand wheel 5221 of the movable actuator assembly 522 is rotated, because the thread directions of the left and right shaft ends of the first stud 5222 are opposite, the first hand wheel 5221 drives the first stud 5222 to rotate, so that the first slider 5224 moves forward or backward, and pressure or tension is transmitted to the corresponding position of the mirror 1 to be measured through the first micro load cell 5226, the first actuating rod 5227, the first adhesive plate 5229 and the first tension plate 5228, so that the surface shape of the mirror 1 to be measured is changed.
As shown in fig. 8, the fixed actuator assembly 521 is substantially identical in structure except that a fixed seat 5213 is used in place of a slide 5223 in the movable actuator assembly 522. The fixed actuator assembly 521 specifically includes a second hand wheel 5211, a second stud 5212, a fixed seat 5213, a second slider 5214, a second guide pin 5215, a second micro load cell 5216, a second actuator rod 5217, a second tension plate 5218, and a second adhesive plate 5219. The fixing seat 5213 is configured as a hollow boss, an opening of a hollow end of the fixing seat faces the direction of the central hole of the actuator mounting frame 52, and the fixing seat 5213 is fixedly connected with the actuator mounting frame 52; one end of the second slider 5214 is in sliding fit with the inner wall of the hollow boss of the fixing seat 5213 with a small gap, and the other end of the second slider passes through the central hole of the actuator mounting bracket 242 and is fixedly connected with one end of the second micro load cell 5216; the head of the second guide pin 5215 is a cylindrical section, two side walls of the fixing seat 5213 are respectively provided with a second straight-line groove 52131, the cylindrical section of the head of the second guide pin 5215 is matched with the second straight-line groove 52131, and the threaded end of the second guide pin 5215 is matched with the second sliding block 5214 and is used for guiding the second sliding block 5214 during movement; the second stud 5212 comprises a left shaft end and a right shaft end, wherein two sections of threads with opposite directions are arranged on the left shaft end, namely a second left-hand thread and a second right-hand thread, the second left-hand thread is in threaded fit with the second slider 5214, and the second right-hand thread is in threaded fit with the fixed seat 5213; the right shaft section of the second stud 5212 is used for connecting a second hand wheel 5211, and the second hand wheel 5211 is in small-clearance fit with the right shaft section of the first stud 5212 and transmits torque through a pin; the other end of the second micro load cell 5216 is connected to one end of a second actuator rod 5217, the other end of the second actuator rod 5217 is connected to one end of a second adhesive plate 5219 through a second tension plate 5218, the second tension plate 5218 in this embodiment is composed of an upper cover plate and a lower cover plate, and the second actuator rod 5217 is used for penetrating through and being adhered to the second adhesive plate 5219; the other end of the second adhesive plate 5219 is used for adhering to the central position of the mirror 1 to be measured. The specific implementation principle of the fixed actuator assembly 521 is as follows: when the second hand wheel 5211 of the fixed actuator assembly 521 is rotated, due to the fact that the thread directions of the left shaft end and the right shaft end of the second stud 5212 are opposite, the second hand wheel 5211 drives the second stud 5212 to rotate, so that the second slider 5214 moves forwards or backwards, and pressure or tension is transmitted to the central position of the reflector 1 to be measured through the second micro load cell 5216, the second actuating rod 5217, the second adhesive plate 5219 and the second tension plate 5218, so that the surface shape of the reflector 1 to be measured is changed.
The reflector surface shape regulating device provided by the invention innovatively adopts a mechanical multipoint active regulating device, and the mirror frame 5 is provided with the fixed actuator component 521 and the plurality of movable actuator components 522 for applying different actuating forces to different positions of the reflector 1 to be measured so as to meet the surface shape regulating requirement, so that the hardware cost of the regulating device is greatly reduced, the structure is simple, the operation is convenient, and the controllability of the regulating process is high; in addition, in the present invention, the movable actuator assembly 522 is preferably provided with the first micro load cell 5226, and the fixed actuator assembly 521 is preferably provided with the second micro load cell 5216, so that the measurement type regulation and control of the reflector 1 to be measured can be realized, and the surface shape regulation and control accuracy of the reflector 1 to be measured is improved.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and it will be apparent to those skilled in the art that modifications may be made to the specific technical solutions described in the above embodiments or equivalent substitutions for some technical features, and these modifications or substitutions may not make the essence of the corresponding technical solutions depart from the scope of the technical solutions protected by the present invention.
Claims (10)
1. A reflector profile control device, characterized in that:
comprises a base (2), a rotary table (3) which can horizontally rotate and is arranged on the base (2), two support frames (4) which are fixed on two sides of the rotary table (3) and a picture frame (5) which can be adjusted in a pitching way and is arranged between the two support frames (4);
the mirror frame (5) is a hollow cylinder and is used for mounting a reflector (1) to be tested; the front end surface of the mirror frame (5) is provided with at least three pressing plates (51), and the rear end surface is provided with an actuator mounting rack (52); the actuator mounting frame (52) is a radioactive frame structure, a fixed actuator assembly (521) is arranged at the central position of the actuator mounting frame, at least 3 branches uniformly distributed along the circumference are radiated outwards at the central position of the actuator mounting frame, and a movable actuator assembly (522) capable of moving along the extension direction of each branch is arranged on each branch;
and one end of the fixed actuator component (521) and one end of the movable actuator component (522) are both used for being connected with the rear end face of the reflector (1) to be measured.
2. A mirror surface shape adjusting apparatus according to claim 1, wherein:
the movable actuator assembly (522) includes a first hand wheel (5221), a first stud (5222), a slide carriage (5223), a first slider (5224), a first guide pin (5225), a first actuator rod (5227), a first tension plate (5228), and a first adhesive plate (5229);
a straight elongated slot (523) is formed on a branch of the actuator mounting frame (52);
the sliding seat (5223) is arranged as a hollow boss, the opening of the hollow end of the sliding seat (5223) faces to the direction of the straight long groove (523), and the sliding seat (5223) is connected with the branch of the actuator mounting frame (52) in a sliding manner;
one end of the first sliding block (5224) is in small-gap sliding fit with the inner wall of the hollow boss of the sliding seat (5223), and the other end of the first sliding block passes through the straight long groove (523) and is fixedly connected with one end of the first execution rod (5227);
the sliding seat (5223) is provided with at least one first straight groove (52231), the head of the first guide pin (5225) is matched with the first straight groove (52231), and the threaded end of the first guide pin is connected with the first sliding block (5224) and used for guiding the first sliding block (5224) during movement;
the first stud (5222) comprises a left shaft end and a right shaft end, wherein two sections of threads with opposite directions are arranged on the left shaft end and are respectively a first left-hand thread and a first right-hand thread, the first left-hand thread is in threaded fit with the first sliding block (5224), and the first right-hand thread is in threaded fit with the sliding seat (5223); the first stud (5222) right shaft section is used for connecting the first hand wheel (5221);
the other end of the first execution rod (5227) is connected with one end of a first bonding plate (5229) through a first tension plate (5228), and the other end of the first bonding plate (5229) is used for being bonded with the corresponding position of the reflector (1) to be tested.
3. A mirror profile control apparatus according to claim 2, wherein:
each branch of the actuator mounting frame (52) is provided with a pair of radial T-shaped chutes (524);
a T-shaped screw assembly (5230) is arranged on the sliding seat (5223) at a position corresponding to the T-shaped sliding groove (524);
the T-shaped screw assembly (5230) is slidably connected with the T-shaped chute (524).
4. A mirror surface shape adjusting apparatus according to claim 3, wherein:
the fixed actuator assembly (521) comprises a second hand wheel (5211), a second stud (5212), a fixed seat (5213), a second sliding block (5214), a second guide pin (5215), a second execution rod (5217), a second tension plate (5218) and a second bonding plate (5219);
a central hole is formed in the center of the actuator mounting frame (52);
the fixing seat (5213) is arranged to be a hollow boss, the opening of the hollow end of the fixing seat faces the direction of the central hole of the actuator mounting frame (52), and the fixing seat (5213) is fixedly connected with the actuator mounting frame (52);
one end of the second sliding block (5214) is in small-gap sliding fit with the inner wall of the hollow boss of the fixed seat (5213), and the other end of the second sliding block passes through the central hole of the actuator mounting frame (242) and is fixedly connected with one end of a second actuating rod (5217);
the fixed seat (5213) is provided with at least one second straight-line groove (52131), the head of the second guide pin (5215) is matched with the second straight-line groove (52131), and the threaded end of the second guide pin is matched with the second sliding block (5214) and is used for guiding the second sliding block (5214) during movement;
the second stud (5212) comprises a left shaft end and a right shaft end, two sections of threads with opposite directions are arranged on the left shaft end and are respectively a second left-hand thread and a second right-hand thread, the second left-hand thread is in threaded fit with the second sliding block (5214), and the second right-hand thread is in threaded fit with the fixed seat (5213); the right shaft section of the second stud (5212) is used for connecting the second hand wheel (5211);
the other end of the second execution rod (5217) is connected with one end of a second bonding plate (5219) through a second tension plate (5218), and the other end of the second bonding plate (5219) is used for being bonded with the center of the reflector (1) to be detected.
5. The mirror surface shape adjusting apparatus according to claim 4, wherein:
the movable actuator assembly (522) further includes a first micro load cell (5226);
the other end of the first sliding block (5224) penetrates through the straight long groove (523) and is fixedly connected with one end of a first micro force measuring sensor (5226), and the other end of the first micro force measuring sensor (5226) is connected with one end of a first execution rod (5227);
the stationary actuator assembly (521) further comprises a second micro load cell (5216);
the other end of the second sliding block (5214) penetrates through a central hole of the actuator mounting frame (242) and is fixedly connected with one end of a second micro load cell (5216), and the other end of the second micro load cell (5216) is connected with one end of a second execution rod (5217).
6. A mirror profile control apparatus according to any one of claims 1 to 5, wherein:
the base (2) is provided with at least one direction adjusting component (21), the acting end of the direction adjusting component (21) is abutted against the rotary table (3) and is used for driving the rotary table (3) to horizontally rotate so as to adjust and lock the azimuth angle of the reflector (1) to be measured;
the rotary table (3) is provided with at least one pitching adjusting component (31), the acting end of the pitching adjusting component (31) is abutted to the metering mirror frame (5) and used for driving the mirror frame (5) to rotate in a pitching mode so as to adjust and lock the pitching angle of the reflector (1) to be measured.
7. The mirror surface shape adjusting apparatus according to claim 6, wherein:
the quick-release nut is characterized by also comprising a quick-release nut sleeve (6);
a plurality of cylindrical surfaces (53) for supporting, cylindrical surfaces (54) for cementing and an installation adjusting surface (55) are radially and alternately arranged on the inner wall of the mirror frame (5);
the quick-release threaded sleeve (6) is in threaded fit with the side wall of the spectacle frame (5) and is connected to the inner surface of the cementing cylindrical surface (54); the quick-release threaded sleeve (6) is of a hollow structure and is used for injecting an adhesive through the hollow structure and enabling the adhesive to adhere the reflector (1) to be detected to the inner wall of the mirror frame (5);
the central angle of the supporting cylindrical surface (53) is larger than that of the cementing cylindrical surface (54), and the supporting cylindrical surface is used for realizing stable support on the reflector (1) to be detected;
and the installation and adjustment surface (55) is provided with an installation and adjustment hole (551) for installing and adjusting the reflector (1) to be measured through the installation and adjustment hole (551).
8. A mirror surface shape adjusting apparatus according to claim 7, wherein:
and a polytetrafluoroethylene base plate is arranged on the cylindrical surface (53) for supporting the mirror frame (5) and is used for forming V-shaped circumferential positioning when the reflector (1) to be measured is installed.
9. The mirror profile control apparatus according to claim 8, wherein:
the device also comprises an azimuth axis (7) and at least two limit screw groups (9);
the turntable (3) is provided with at least one first through hole (32);
a group of radial ball bearings (22) are arranged at corresponding positions on the base (2);
the upper section of the azimuth shaft (7) is in transition fit with the first through hole (32), and the lower section of the azimuth shaft (7) is matched with the radial ball bearing (22);
the limiting screw group (9) comprises a screw, two polytetrafluoroethylene gaskets and a steel gasket;
at least two arc-shaped grooves (33) are formed in the rotary table (3); the screw penetrates through the steel pad, the two polytetrafluoroethylene pads and the arc-shaped groove (33) in sequence and then is in threaded connection with the base (2).
10. The mirror profile control apparatus according to claim 9, wherein:
also comprises two horizontal shafts (8);
a second through hole (41) with an opening is formed in the side face of the upper end of the support frame (4), a screw (42) is arranged on the support frame (4) corresponding to the opening of the second through hole (41), and the screw (42) and the second through hole (41) are distributed in a horizontal cross manner;
horizontal axis (8) one end passes through tang cooperation location with picture frame (5) lateral wall, and second through-hole (41) cooperation on the other end and support frame (4) compresses tightly through screw (42) and adjusts second through-hole (41) aperture size in order to change the shaft hole cooperation elasticity for the hole axle is held tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211486066.7A CN115728905A (en) | 2022-11-24 | 2022-11-24 | Reflector surface shape regulating and controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211486066.7A CN115728905A (en) | 2022-11-24 | 2022-11-24 | Reflector surface shape regulating and controlling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115728905A true CN115728905A (en) | 2023-03-03 |
Family
ID=85298120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211486066.7A Pending CN115728905A (en) | 2022-11-24 | 2022-11-24 | Reflector surface shape regulating and controlling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115728905A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116560035A (en) * | 2023-07-12 | 2023-08-08 | 长春理工大学 | Standard plane mirror supporting mechanism for optical adjustment detection |
-
2022
- 2022-11-24 CN CN202211486066.7A patent/CN115728905A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116560035A (en) * | 2023-07-12 | 2023-08-08 | 长春理工大学 | Standard plane mirror supporting mechanism for optical adjustment detection |
| CN116560035B (en) * | 2023-07-12 | 2023-08-29 | 长春理工大学 | Standard plane mirror supporting mechanism for optical adjustment detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107329231B (en) | Adjustable reflector Bipod flexible supporting structure, supporting device and adjusting method thereof | |
| US7715129B2 (en) | Method for aligning and assembling two lens pieces, and a machine to accomplish this task | |
| CN109683278B (en) | Adjustable supporting device of large-caliber infrared telescope based on gradient porous structure | |
| US5219099A (en) | Coaxial lead screw drive syringe pump | |
| US4664487A (en) | Laser mirror positioning apparatus | |
| EP1924954A2 (en) | Method for aligning and assembling two lens pieces, and a machine to accomplish this task | |
| CN101221273B (en) | Parallel type macro-micro-driven high-precision heavy-caliber optical grating split joint device | |
| CN105929516B (en) | A kind of array grating splicing adjusting apparatus of grand micro- combination driving | |
| CN115728905A (en) | Reflector surface shape regulating and controlling device | |
| CN109343197B (en) | Bonding method of reflector assembly and reflector assembly | |
| CN102998767A (en) | Installation and adjustment method of infrared lenses | |
| CN111624729B (en) | Fast reflector | |
| CN208270835U (en) | Mirror support regulating mechanism and disappear the K mirror system of image rotation for telescope | |
| CN115839671A (en) | Method and system for researching reflector surface shape-actuating force action mechanism | |
| CN108627085B (en) | Large hole system laser centering device and method | |
| CN108427170B (en) | Reflector supporting and adjusting mechanism and K mirror system for telescope image elimination rotation | |
| RU2661049C1 (en) | Method and device for mounting large-size mirror of optical-mechanical device in holder (versios) | |
| CN111413806A (en) | Dual-mode switching system for space coronagraph and switching method thereof | |
| CN214669794U (en) | Gluing centering device for spherical products | |
| CN112099185B (en) | Precision focusing device for optical component | |
| CN115951470A (en) | Vibration-resistant and heat-dissipating supporting mechanism of rectangular reflector with large length-width ratio | |
| CN108092122A (en) | A kind of ring laser peripheral components regulating mechanism | |
| CN109612416B (en) | A aligning tilt adjusting mechanism for revolving stage | |
| CN113917648A (en) | Manual precision focusing and focusing mechanism capable of self-locking | |
| CN112965324B (en) | Carbon fiber truss body assembling and adjusting device and process based on gluing error compensation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |