A splicing device and splicing method for wavefront curvature sensor

Abstract

The present invention relates to a splicing device and a splicing method for a wavefront curvature sensor, and belongs to the technical field of positioning and installing photoelectric sensors. It includes an adjustment mechanism and an assembly mechanism; the adjustment mechanism includes two pairs of screw mechanisms and a lifting rod mechanism; the assembly mechanism includes a supporting gantry, an assembly plate, two pairs of pillars and a bottom plate; the splicing device is used to complete the installation of a pair of CCD photoelectric sensors on an imaging substrate. During the splicing operation, the lifting rod is connected to the positioning pin on the bottom surface of the CCD, and then the linkage mechanism is used to pull a pair of lifting rods to drive the movement of the CCD, thereby avoiding direct contact with the CCD and preventing damage and pollution to the CCD. The device of the present invention adopts a fixing and lifting structure from the bottom surface, which effectively prevents pollutants from contacting the imaging silicon surface of the CCD, while preventing the user from direct contact with the CCD, protecting the gold wire on the CCD photoelectric sensor, and avoiding static electricity carried by the human body. Its operation method realizes the installation of the imaging CCD photoelectric sensor without direct contact with the human body.

Description

Technical Field

[0001] The invention belongs to the field of photoelectric sensor positioning and installation technology and non-human body direct contact imaging CCD operation, and specifically relates to high-precision installation and disassembly of a CCD-based wavefront curvature sensor. Background Art

[0002] With the increasing demand for large field of view and high resolution in the field of earth surface observation, mapping and astronomical observation, high requirements are placed on the size and accuracy of image sensors. In order to develop more precise photoelectric detection instruments, scientific-grade CCD photoelectric sensors are needed. Scientific-grade CCD, that is, scientific-grade charge-coupled devices, are usually very expensive. The pixels are dense, small, and highly sensitive. Different special protective shells need to be designed for transportation and installation, including removing the single-chip bare CCD from the package provided by the supplier and installing it on the wavefront sensing substrate for assembly and adjustment. In order to maximize the effective area of ​​wavefront sensing, the wavefront curvature sensor uses an imaging silicon surface that is not packaged and directly exposed to the user for CCD splicing. For the wavefront curvature sensor, two defocused imaging surfaces are required, one in front of the focal plane and the other behind the focal plane. The telescope wavefront error distribution and wavefront correction are obtained through calculations of the two images before and after focus, and they are fed back to the telescope control system for correction. The wavefront curvature sensor is a key component of this active optical correction.

[0003] Since this solution uses a CCD whose imaging silicon surface is not packaged, the imaging efficiency is greatly improved. At the same time, it also poses a series of challenges, including avoiding direct contact with the CCD under various circumstances and considering protection during operation. Therefore, it is necessary to design corresponding tools to achieve safe and contactless CCD splicing.

[0004] Existing detector disassembly and assembly devices basically adopt the method of clamping the detector to the installation position by tools. The disadvantage is that such clamping tools designed according to the shape of the detector are difficult to implement on the bare chip image detector, and their positioning accuracy, efficiency and reliability are also very limited, which is only suitable for the installation of low-precision and low-requirement detectors. Summary of the invention

[0005] In order to complete the installation of two CCDs on the imaging substrate of the wavefront curvature sensor by relying only on the threaded holes and three mounting posts on the two positioning pins on the back of the single CCD (as shown in FIG9 ), while ensuring the safety during the process and the final installation accuracy, including the parallelism of the two imaging surfaces, the defocus distance, the minimum stitching seam, etc.; the present invention provides a stitching device for a wavefront curvature sensor, and at the same time, provides a stitching method based on the stitching device.

[0006] A splicing device for a wavefront curvature sensor comprises an adjustment mechanism 1 and an assembling mechanism;

[0007] The adjustment mechanism 1 includes two pairs of screw mechanisms and a lifting rod mechanism;

[0008] Each pair of screw rod mechanisms includes a screw rod 106 and a screw rod nut 108; the lifting rod mechanism includes two pairs of lifting rods 105 and two dampers 10; the upper part of each pair of lifting rods 105 is fixedly connected to the corresponding screw rod nut 108 through a clamping plate 107, and moves up and down along the screw rod 106 with the screw rod nut 108; the lower ends of the two screw rods 106 are screws;

[0009] The assembly mechanism includes a supporting gantry 2, an assembly plate 3, two pairs of pillars 4 and a bottom plate 5; the supporting gantry 2 is fixed on the assembly plate 3, the bottom surface of the assembly plate 3 is fixed on the top of the two pairs of pillars 4, and the two pairs of pillars 4 are symmetrically fixed on the bottom plate 5; a pair of L-shaped support plates 7 are provided on the bottom plate 5;

[0010] The assembly plate 3 is a rectangular frame plate, and the mounted imaging substrate 9 is fixedly arranged in the middle of the assembly plate 3 through a support plate; one side of the mounted imaging substrate 9 is a mounting surface, and the mounting surface faces downward;

[0011] The lower ends of the screw rods 106 of the two pairs of screw rod mechanisms are fixed on the horizontal beam supporting the gantry 2, so that the two screw rods 106 are upright and parallel; the two pairs of lifting rods 105 are parallelly located between the two screw rods 106, and the lower ends of the two pairs of lifting rods 105 pass through the horizontal beam supporting the gantry 2 and the imaging substrate 9 respectively; the two lockers 10 are fixed on the horizontal beam supporting the gantry 2, and are respectively connected to one lifting rod 105 in each pair of lifting rods 105;

[0012] The splicing device is used to mount a pair of CCD photoelectric sensors on the imaging substrate 9 .

[0013] Further specific technical solutions are as follows:

[0014] The device further includes a protection mechanism, which includes a glass cover 910, a protection shell 912, a pair of alignment rods 911 and a pair of support columns 913; the protection shell 912 is a rectangular frame, and the two opposite sides are respectively sleeved on the pair of alignment rods 911, and the pair of support columns 913 are respectively fixedly connected to the lower ends of the pair of alignment rods 911;

[0015] The imaging substrate 9 with a pair of CCD photoelectric sensors mounted thereon is mounted on a pair of alignment rods 911 , and a glass cover 910 and a protective shell 912 form a cover shell, which covers the pair of CCD photoelectric sensors on the imaging substrate 9 .

[0016] The adjustment mechanism 1 also includes a pair of brackets 102 and two hand wheels 101; the bracket 102 is in the shape of a long plate, and bearing seats are respectively provided at both ends of one side of the bracket 102, and the screw rod 106 is fixed on one side surface of the bracket 102 by a pair of bearings and bearing seats 104; the lower end of the bracket 102 in the length direction is provided with a right-angle flange, and the bracket 102 is fixed to the horizontal beam supporting the gantry 2 through the right-angle flange, so that the two screw rods 106 of the two pairs of screw rod mechanisms are upright and parallel to the supporting gantry 2; the upper ends of the two screw rods 106 are respectively fixed with hand wheels 101, and the screw rod 106 is rotated by the hand wheel 101 to realize the screw rod nut 108 driving a pair of lifting rods 105 to move up and down.

[0017] Corresponding to the right-angle flanges on a pair of brackets 102, a pair of installation grooves 201 are respectively opened on both sides of the horizontal beam supporting the gantry 2, and the right-angle flange on each bracket 102 is located in the installation groove 201; the horizontal beam supporting the gantry 2 is also respectively opened with a lifting rod hole 202 and a locking device installation hole 203.

[0018] One side of a pair of short sides of the assembling plate 3 is connected to one end of the left supporting plate 301, and the other side of the pair of short sides is connected to one end of the right supporting plate 302. The other end of the left supporting plate 301 and the other end of the right supporting plate 302 are respectively connected to the imaging substrate 9, so that the imaging substrate 9 is fixed on the assembling plate 3; a pair of short sides of the assembling plate 3 are respectively provided with fixing grooves 305 for installing the supporting gantry 2, and a pair of long sides are respectively provided with side fixing holes 303 for installing the imaging substrate 9; and the four corners of the assembling plate 3 are respectively provided with support fixing holes 304.

[0019] A boss surface is provided on the mounting surface of the imaging substrate 9, and the boss surface is composed of a low mounting boss 903 and a high mounting boss 901 connected in sequence; a cable through hole 902 is respectively provided in the middle of the low mounting boss 903 and the middle of the high mounting boss 901, and a positioning pin limit hole 907 and a mounting column through hole 908 are respectively provided on both sides of each cable through hole 902.

[0020] The base plate 5 is a rectangular plate, and a pair of pillar mounting holes 501 are respectively opened at the corresponding two side edges, and two pairs of rectangular grooves 502 are provided in the middle of the base plate 5; one side plate of the pair of L-shaped support plates 7 is respectively fixed in a pair of rectangular grooves 502, and the other side plates of the pair of L-shaped support plates 7 are in an upright relative state.

[0021] The locking device 10 comprises a pressing cylinder 1001, an axle ring 1002, a polytetrafluoroethylene gasket 1003, a rubber ring 1004 and a base cylinder 1005; the base cylinder 1005 is fixed in the locking device fixing hole on the supporting gantry 2, and the rubber ring 1004, the polytetrafluoroethylene gasket 1003 and the axle ring 1002 are sequentially installed in the base cylinder 1005 from top to bottom. The inner wall of the pressing cylinder 1001 has an internal thread, and the lower end passes through the axle ring 1002, the polytetrafluoroethylene gasket 1003 and the rubber ring 1004 and is connected with the external thread provided on the wall of the base cylinder 1005. The pressing cylinder 1001 is rotated to lock or release the lifting rod 105.

[0022] The splicing operation steps based on the splicing device of the present invention are as follows:

[0023] 1) Place the CCD and imaging substrate in place

[0024] Lift the two pairs of lifting rods 105 to the highest position in a coordinated manner, and then tighten the two lockers 10 to achieve hovering; fix the imaging substrate 9 to the assembly board 3; place the CCD photoelectric sensor 603 with the protective box 601 face down on the bottom plate 5, and fix the CCD photoelectric sensor 603 by connecting the pair of L-shaped support plates 7 on the bottom plate 5 to the two support plate fixing grooves 602 on the protective box 601 respectively. Release the lockers 10 on the lifting rods 105, turn the hand wheel 101 to slowly lower the pair of lifting rods 105, so that they pass through the positioning pin limit holes 907 on the imaging substrate 9, and match the screw ends of the pair of lifting rods 105 with the threaded holes of the positioning pins of the CCD photoelectric sensor 603;

[0025] 2) Remove the CCD installation protection device

[0026] Use a screwdriver to remove the screws connecting the back of the CCD photoelectric sensor 603 and the protection box 601, so that the CCD photoelectric sensor 603 and the protection box 601 are disengaged; remove the screws connecting the two sides of the protection box 601 with the pair of L-shaped support plates 7, and remove the pair of L-shaped support plates 7;

[0027] 3) Lift the CCD to the imaging substrate for installation

[0028] Release the damping device 10 on the pair of lifting rods 105, and pull the CCD photoelectric sensor 603 to the position of the imaging substrate 9 through the pair of lifting rods 105; at this time, the three mounting posts 605 and the two positioning pins 609 on the CCD photoelectric sensor 603 will pass through the imaging substrate 9, and the two positioning pins 609 complete the positioning of the CCD photoelectric sensor 603. At the same time, a torque wrench is used to tighten the copper posts on the three mounting posts 605 with the same torque to fix the CCD photoelectric sensor 603 on the imaging substrate 9, and the installation of a piece of CCD photoelectric sensor 603 is completed; remove the pair of lifting rods 105 that have completed the installation of the CCD photoelectric sensor 603, and tighten the locker 10 to make the pair of lifting rods 105 hover on the supporting gantry 2;

[0029] 4) Install another CCD

[0030] Repeat steps 1) to 3) to complete the installation of another CCD photoelectric sensor 603;

[0031] 5) Install the wavefront curvature sensor protective housing

[0032] Remove the adjustment mechanism 1 above the supporting gantry 2, remove the left support plate 301, the right support plate 302 and the assembly plate 3, take down the imaging substrate 9, install the support column 913 at the bottom of the imaging substrate 9, install the protective shell 912 through a pair of alignment rods 911, and then install the glass cover 910 to complete the non-destructive assembly of the two CCD photoelectric sensors;

[0033] The spacing between adjacent CCD photoelectric sensors is 0.4-0.6 mm, and the angle between two CCD photoelectric sensors is 0.03°-0.04°.

[0034] The beneficial technical effects of the present invention are embodied in the following aspects:

[0035] 1. The function achieved by the splicing device of the present invention is to complete the splicing of two CCDs while avoiding the contamination of the imaging silicon surface of the CCD photoelectric sensor and the accidental touching of the gold wire. The present invention adopts a design of fixing and pulling from the bottom surface, which effectively prevents the contact between pollutants and the imaging silicon surface 608 of the CCD, while preventing the user from direct contact with the CCD, thereby protecting the gold wire 607 on the CCD photoelectric sensor and avoiding static electricity carried by the human body. The present invention replaces manual operation with a mechanical structure, so that the installation accuracy is guaranteed and the splicing task can be completed within the design requirements. The device can achieve the normal completion of the precision splicing of CCDs, and splices two CCDs without damage when the CCD spacing is 0.5mm. The measurement shows that the angle between the two CCDs is 0.038° and the height difference is 2.013mm, which meets the use requirements.

[0036] 2. The operation method of the present invention realizes the installation operation of the imaging CCD photoelectric sensor without direct human contact. The lifting rod is connected to the positioning pin on the bottom surface of the CCD, and then the lifting rod is pulled by the linkage device to drive the movement of the CCD, thereby avoiding direct contact with the CCD and preventing damage and pollution to the CCD. By limiting the positioning pin, the position of the CCD is precisely defined so that the position accuracy can meet the design requirements. At the same time, considering that the imaging surface of the CCD is not equipped with a cover window, and electrostatic discharge may damage or irreversibly degrade the device, the installation process should reduce unnecessary contact with the CCD and take comprehensive anti-static treatment precautions. After the installation is completed, there is a corresponding protection mechanism to well protect the entire wavefront curvature sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of the present invention.

[0038] Figure 2 It is a schematic diagram of the structure of the adjustment mechanism.

[0039] Figure 3 This is a schematic diagram of the supporting gantry structure.

[0040] Figure 4 It is a schematic diagram of the structure of installing the imaging substrate on the assembly board.

[0041] Figure 5 Schematic diagram of the assembly board structure.

[0042] Figure 6 It is a schematic diagram of the mounting surface structure of the imaging substrate.

[0043] Figure 7 Schematic diagram of the base plate structure.

[0044] Figure 8 Schematic diagram of a scientific-grade CCD photoelectric sensor located in a protective box.

[0045] Fig. 9 This is a schematic diagram of the structure of a scientific-grade CCD photoelectric sensor.

[0046] Fig.10 It is a schematic diagram of the connection status between the CCD photoelectric sensor and the device during splicing.

[0047] Fig.11 Schematic diagram of placing the CCD photoelectric sensor on the protective mechanism to complete the splicing.

[0048] Fig.12 It is a schematic diagram of the locking device structure.

[0049] The serial numbers in the above figure are: adjustment mechanism 1, support gantry 2, assembly plate 3, pillar 4, bottom plate 5, protection box 6, L-shaped support plate 7, bottom plate support 8, wavefront curvature sensor substrate 9, damper 10, hand wheel 101, bracket 102, lubricating part 103, lower end bearing 104, lifting rod 105, screw 106, clamp 107, screw nut 108, upper end bearing 109, adjustment mechanism installation slot 201, alignment hole and locker fixing hole 202, support gantry fixing hole 203, left support plate 301, right support plate 302, side fixing hole 303, pillar Fixing hole 304, fixing groove 305, protective box 6, support plate fixing groove 602, CCD photoelectric sensor 603, mounting column 605, cable 606, gold wire 607, imaging silicon surface 608, positioning pin 609, high mounting boss 901, cable through hole 902, low mounting boss 903, positioning pin limit hole 907, mounting column through hole 908, glass cover 910, collimation rod 911, protective shell 912, support column 913, pressing cylinder 1001, shaft ring 1002, tetrafluoroethylene gasket 1003, rubber ring 1004, base cylinder 1005. DETAILED DESCRIPTION

[0050] The present invention will be further described in detail below through embodiments in conjunction with the accompanying drawings. Example

[0051] See also Figure 1 A splicing device for a wavefront curvature sensor includes an adjustment mechanism 1 and an assembling mechanism frame.

[0052] See also Figure 2 The adjustment mechanism 1 includes two pairs of screw mechanisms and a lifting rod mechanism. Each pair of screw mechanisms includes a screw 106 and a screw nut 108; the lifting rod mechanism includes two pairs of lifting rods 105 and two lockers 10; the upper part of each pair of lifting rods 105 is fixedly connected to the corresponding screw nut 108 through a clamping plate 107, and moves up and down along the screw 106 with the screw nut 108; the lower ends of the two screws 106 are screws.

[0053] See also Figure 2 The adjustment mechanism 1 also includes a pair of brackets 102 and two hand wheels 101. The bracket 102 is in the shape of a long plate, and bearing seats 104 are respectively installed at both ends of one side of the bracket 102; the screw rod 106 is fixedly installed on one side of the bracket 102 through the cooperation of a pair of bearings and the bearing seat 104. The lower end of the bracket 102 in the length direction is provided with a right-angle flange, and the bracket 102 is fixed on the horizontal beam supporting the gantry 2 through the right-angle flange, so that the two screw rods 106 of the two pairs of screw rod mechanisms are upright and parallel on the supporting gantry 2. The upper ends of the two screw rods 106 are respectively fixedly installed with hand wheels 101, and the screw rods 106 are rotated by the hand wheels 101 to realize that the screw rod nuts 108 drive a pair of lifting rods 105 to move up and down.

[0054] See also Figure 3 Corresponding to the right-angle flanges on a pair of brackets 102, a pair of mounting grooves 201 are respectively opened on both sides of the horizontal beam supporting the gantry 2, and the right-angle flange on each bracket 102 is located in the mounting groove 201; the horizontal beam supporting the gantry 2 is also respectively opened with a lifting rod hole 202 and a locking device mounting hole 203.

[0055] See also Figure 1 The assembly mechanism includes a supporting gantry 2, an assembly plate 3, two pairs of pillars 4 and a bottom plate 5. The supporting gantry 2 is fixedly mounted on the assembly plate 3, the bottom surface of the assembly plate 3 is fixedly mounted on the top of the two pairs of pillars 4, and the two pairs of pillars 4 are symmetrically fixedly mounted on the bottom plate 5; a pair of L-shaped support plates 7 are provided on the bottom plate 5.

[0056] See also Figure 4 The assembly board 3 is a rectangular frame board, and the mounted imaging substrate 9 is fixedly mounted on the middle part of the assembly board 3 through a support plate; one side of the mounted imaging substrate 9 is a mounting surface, and the mounting surface faces downward.

[0057] See also Figure 4 One side of a pair of short sides of the assembly plate 3 is connected to one end of the left support plate 301, and the other side of the pair of short sides is connected to one end of the right support plate 302. The other end of the left support plate 301 and the other end of the right support plate 302 are respectively connected to the imaging substrate 9, so that the imaging substrate 9 is fixed on the assembly plate 3. Figure 5 A pair of short sides of the assembly plate 3 are respectively provided with fixing grooves 305 for installing the supporting gantry 2, and a pair of long sides are respectively provided with side fixing holes 303 for installing the imaging substrate 9; and pillar fixing holes 304 are respectively provided on the four corners of the assembly plate 3.

[0058] See also Figure 6 The mounting surface of the imaging substrate 9 is provided with a boss surface, which is composed of a low mounting boss 903 and a high mounting boss 901 connected in sequence; the height difference between the low mounting boss 903 and the high mounting boss 901 is 2 mm. The middle of the low mounting boss 903 and the middle of the high mounting boss 901 are respectively provided with cable through holes 902, and both sides of each cable through hole 902 are respectively provided with a positioning pin limiting hole 907 and a mounting column through hole 908.

[0059] See also Figure 1The lower ends of the screw rods 106 of the two pairs of screw rod mechanisms are fixedly installed on the horizontal beam supporting the gantry 2, so that the two screw rods 106 are upright and parallel. The two pairs of lifting rods 105 are parallelly located between the two screw rods 106, and the lower ends of the two pairs of lifting rods 105 pass through the horizontal beam supporting the gantry 2 and the imaging substrate 9 respectively; the two lockers 10 are fixedly installed on the horizontal beam supporting the gantry 2, and are respectively connected to one lifting rod 105 in each pair of lifting rods 105.

[0060] See also Fig.12 The locking device 10 comprises a pressing cylinder 1001, an axle ring 1002, a polytetrafluoroethylene gasket 1003, a rubber ring 1004 and a base cylinder 1005; the base cylinder 1005 is fixed in the locking device fixing hole on the supporting gantry 2, and the rubber ring 1004, the polytetrafluoroethylene gasket 1003 and the axle ring 1002 are sequentially installed in the base cylinder 1005 from top to bottom. The inner wall of the pressing cylinder 1001 has an internal thread, and the lower end passes through the axle ring 1002, the polytetrafluoroethylene gasket 1003 and the rubber ring 1004 and is connected with the external thread provided on the wall of the base cylinder 1005. The pressing cylinder 1001 is rotated to lock or release the lifting rod 105.

[0061] See also Figure 7 The bottom plate 5 is a rectangular plate, and a pair of pillar mounting holes 501 are respectively opened at the corresponding two sides, and the two pairs of pillars 4 are symmetrically fixedly installed on the bottom plate 5 through the pillar mounting holes 501. Two pairs of rectangular grooves 502 are provided in the middle of the bottom plate 5; one side plate of a pair of L-shaped support plates 7 is respectively fixedly installed in the pair of rectangular grooves 502, and the other side plates of the pair of L-shaped support plates 7 are in an upright and opposite state.

[0062] The steps for splicing the CCD photoelectric sensor and the imaging substrate based on the splicing device are as follows:

[0063] 1) Place the CCD and imaging substrate in place

[0064] The two pairs of lifting rods 105 are pulled up to the highest position in a coordinated manner, and then the rotating pressing cylinders 1001 on the two locking devices 10 are tightened to make the two pairs of lifting rods 105 suspend. The imaging substrate 9 is fixedly mounted on the assembly plate 3 through the left support plate 301 and the right support plate 302; see Figure 1 , place the CCD photoelectric sensor 603 with the protection box 601 face downward on the bottom plate 5, and fix the CCD photoelectric sensor 603 by connecting the pair of L-shaped support plates 7 on the bottom plate 5 to the two support plate fixing grooves 602 on the protection box 601. Release the lockers 10 on the pair of lifting rods 105, turn the hand wheel 101 and slowly lower the pair of lifting rods 105 so that they pass through the positioning pin limiting holes 907 on the imaging substrate 9, and match the screw ends of the pair of lifting rods 105 with the threaded holes of the positioning pins 609 of the CCD photoelectric sensor 603;

[0065] 2) Remove the CCD installation protection device

[0066] Use a screwdriver to remove the screws connecting the back of the CCD photoelectric sensor 603 and the protection box 601, so that the CCD photoelectric sensor 603 and the protection box 601 are disengaged; remove the screws connecting the two sides of the protection box 601 with the pair of L-shaped support plates 7, and remove the pair of L-shaped support plates 7;

[0067] 3) Lift the CCD to the imaging substrate and install it

[0068] Release the damping device 10 on the pair of lifting rods 105, pull the CCD photoelectric sensor 603 to the position of the imaging substrate 9 through the pair of lifting rods 105, and pass the cable 606 through the cable through hole 902 on the imaging substrate 9. At this time, the three mounting posts 605 and two positioning pins 609 on the CCD photoelectric sensor 603 will pass through the imaging substrate 9, and the two positioning pins 609 complete the positioning of the CCD photoelectric sensor 603. At the same time, use a torque wrench to use the same torque to tighten the copper posts on the three mounting posts 605 to fix the CCD photoelectric sensor 603 on the imaging substrate 9, and complete the installation of a piece of CCD photoelectric sensor 603; remove the pair of lifting rods 105 that have completed the installation of the CCD photoelectric sensor 603, tighten the rotating pressure cylinder 1001 on the locker 10 to make the pair of lifting rods 105 hover on the supporting gantry 2;

[0069] 4) Install another CCD

[0070] Repeat steps 1) to 3) to complete the installation of another CCD photoelectric sensor 603 on the imaging substrate 9;

[0071] 5) Install the wavefront curvature sensor protective housing

[0072] Dismantle the adjustment mechanism 1 above the supporting gantry 2, remove the left support plate 301, the right support plate 302 and the assembly plate 3, take down the imaging substrate 9, install a pair of support columns 913 on the bottom surface of the imaging substrate 9, install the protective shell 912 through a pair of alignment rods 911, and then install the glass cover 910 to complete the damage-free assembly of the two CCD photoelectric sensors.

[0073] When the spacing between two adjacent CCD photoelectric sensors is 0.5mm, they can be spliced ​​without damage; the measurement shows that the angle between the two CCD photoelectric sensors is 0.038° and the height difference is 2.013mm, which meets the usage requirements.

[0074] It will be easily understood by those skilled in the art that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A splicing device for a wavefront curvature sensor, characterized in that: It comprises an adjustment mechanism (1) and an assembly mechanism; The adjustment mechanism (1) comprises two pairs of screw mechanisms and a lifting rod mechanism; Each pair of screw mechanisms comprises a screw (106) and a screw nut (108); the lifting rod mechanism comprises two pairs of lifting rods (105) and two lockers (10); the upper part of each pair of lifting rods (105) is fixedly connected to the corresponding screw nut (108) through a clamping plate (107), and moves up and down along the screw (106) along with the screw nut (108); the lower ends of the two screws (106) are screws; The assembly mechanism comprises a supporting gantry (2), an assembly plate (3), two pairs of pillars (4) and a bottom plate (5); the supporting gantry (2) is fixedly arranged on the assembly plate (3); the bottom surface of the assembly plate (3) is fixedly arranged on the top ends of the two pairs of pillars (4); the two pairs of pillars (4) are symmetrically fixedly arranged on the bottom plate (5); a pair of L-shaped support plates (7) are arranged on the bottom plate (5); The assembly plate (3) is a rectangular frame plate, and the mounted imaging substrate (9) is fixedly arranged in the middle of the assembly plate (3) via a support plate; one side surface of the mounted imaging substrate (9) is a mounting surface, and the mounting surface faces downward; The lower ends of the screw rods (106) of the two pairs of screw rod mechanisms are fixed on the horizontal beam supporting the gantry (2), so that the two screw rods (106) are in an upright and parallel state; the two pairs of lifting rods (105) are located parallel to the two screw rods (106), and the lower ends of the two pairs of lifting rods (105) pass through the horizontal beam supporting the gantry (2) and the imaging substrate (9) respectively; the two locking devices (10) are fixed on the horizontal beam supporting the gantry (2), and are respectively connected to one lifting rod (105) in each pair of lifting rods (105); the pair of CCD photoelectric sensors are installed on the imaging substrate (9) through the splicing device; It also includes a protection mechanism, which includes a glass cover (910), a protection shell (912), a pair of alignment rods (911) and a pair of support columns (913); the protection shell (912) is a rectangular frame, and the two opposite sides are respectively sleeved on the pair of alignment rods (911), and the pair of support columns (913) are respectively fixedly connected to the lower ends of the pair of alignment rods (911); An imaging substrate (9) on which a pair of CCD photoelectric sensors are mounted is mounted on a pair of alignment rods (911); a glass upper cover (910) and a protective shell (912) form a cover, and the cover covers the pair of CCD photoelectric sensors on the imaging substrate (9); The adjustment mechanism (1) further comprises a pair of brackets (102) and two hand wheels (101); the bracket (102) is in the shape of a long plate, and bearing seats are respectively provided at both ends of one side surface of the bracket (102); the screw rod (106) is fixedly arranged on one side surface of the bracket (102) by means of a pair of bearings and a bearing seat (104); a right-angle flange is provided at the lower end of the bracket (102) in the length direction, and the bracket (102) is fixed to a horizontal beam supporting the gantry (2) by means of the right-angle flange, so that the two screw rods (106) of the two pairs of screw rod mechanisms are located upright and parallel on the supporting gantry (2); hand wheels (101) are respectively fixedly arranged at the upper ends of the two screw rods (106), and the screw rods (106) are rotated by means of the hand wheels (101), so that the screw rod nuts (108) drive the pair of lifting rods (105) to move up and down.

2. A splicing device for a wavefront curvature sensor according to claim 1, characterized in that: Corresponding to the right-angle flanges on the pair of brackets (102), a pair of mounting grooves (201) are respectively provided on both sides of the horizontal beam supporting the gantry (2), and the right-angle flange on each bracket (102) is located in the mounting groove (201); and a lifting rod hole (202) and a locking device mounting hole (203) are also respectively provided on the horizontal beam supporting the gantry (2).

3. A splicing device for a wavefront curvature sensor according to claim 1, characterized in that: One side of a pair of short sides of the assembly plate (3) is connected to one end of a left support plate (301), the other side of the pair of short sides is connected to one end of a right support plate (302), and the other end of the left support plate (301) and the other end of the right support plate (302) are respectively connected to an imaging substrate (9), so that the imaging substrate (9) is fixed to the assembly plate (3); a pair of short sides of the assembly plate (3) are respectively provided with fixing grooves (305) for mounting a supporting gantry (2), and a pair of long sides are respectively provided with side fixing holes (303) for mounting the imaging substrate (9); and four corners of the assembly plate (3) are respectively provided with support fixing holes (304).

4. The splicing device for a wavefront curvature sensor according to claim 1, characterized in that: A boss surface is provided on the mounting surface of the imaging substrate (9), the boss surface being composed of a low mounting boss (903) and a high mounting boss (901) connected in sequence; a cable through hole (902) is respectively provided in the middle of the low mounting boss (903) and the middle of the high mounting boss (901), and a positioning pin limiting hole (907) and a mounting column through hole (908) are respectively provided on both sides of each cable through hole (902).

5. The splicing device for a wavefront curvature sensor according to claim 1, characterized in that: The bottom plate (5) is a rectangular plate, and a pair of pillar mounting holes (501) are respectively provided at corresponding two side edges, and two pairs of rectangular grooves (502) are provided in the middle of the bottom plate (5); one side plate of the pair of L-shaped support plates (7) is respectively fixedly arranged in the pair of rectangular grooves (502), and the other side plates of the pair of L-shaped support plates (7) are in an upright relative state.

6. The splicing device for a wavefront curvature sensor according to claim 1, characterized in that: The locking device (10) comprises a pressing cylinder (1001), an axle ring (1002), a polytetrafluoroethylene gasket (1003), a rubber ring (1004) and a base cylinder (1005); the base cylinder (1005) is fixed in a locking device fixing hole on a supporting gantry (2); the rubber ring (1004), the polytetrafluoroethylene gasket (1003) and the axle ring (1002) are sequentially installed in the base cylinder (1005) from top to bottom; the inner wall of the pressing cylinder (1001) has an internal thread; the lower end passes through the axle ring (1002), the polytetrafluoroethylene gasket (1003) and the rubber ring (1004) and is connected to an external thread provided on the wall of the base cylinder (1005); the pressing cylinder (1001) is rotated to lock or release the lifting rod (105).

7. A method for splicing a splicing device for a wavefront curvature sensor according to claim 1, characterized in that The steps are as follows: 1) Place the CCD and imaging substrate in place The two pairs of lifting rods (105) are pulled up to the highest position in a coordinated manner, and then the two locking devices (10) are tightened to achieve hovering; the imaging substrate (9) is fixed to the assembly plate (3); the CCD photoelectric sensor (603) with the protective box (601) is placed face down on the bottom plate (5), and a pair of L-shaped support plates (7) on the bottom plate (5) are respectively fixedly connected to the two support plate fixing grooves (602) on the protective box (601), thereby completing the fixing of the CCD photoelectric sensor (603); Release the locker (10) on the lifting rod (105), turn the hand wheel (101) to slowly lower the pair of lifting rods (105) so that they pass through the positioning pin limiting holes (907) on the imaging substrate (9), and match the screw ends of the pair of lifting rods (105) with the threaded holes of the positioning pins of the CCD photoelectric sensor (603); 2) Remove the CCD installation protection device Use a screwdriver to remove the screws connecting the back of the CCD photoelectric sensor (603) and the protection box (601), so that the CCD photoelectric sensor (603) and the protection box (601) are disengaged; remove the screws connecting the two sides of the protection box (601) and the pair of L-shaped support plates (7), and remove the pair of L-shaped support plates (7); 3) Lift the CCD to the imaging substrate for installation Release the lockers (10) on the pair of lifting rods (105), and pull the CCD photoelectric sensor (603) to the position of the imaging substrate (9) through the pair of lifting rods (105); at this time, the three mounting posts (605) and the two positioning pins (609) on the CCD photoelectric sensor (603) will pass through the imaging substrate (9), and the two positioning pins (609) complete the positioning of the CCD photoelectric sensor (603). At the same time, use a torque wrench to use the same torque to tighten the copper posts on the three mounting posts (605) so that the CCD photoelectric sensor (603) is fixed on the imaging substrate (9), thereby completing the installation of a piece of CCD photoelectric sensor (603); remove the pair of lifting rods (105) that have completed the installation of the CCD photoelectric sensor (603), and tighten the lockers (10) so that the pair of lifting rods (105) are suspended on the supporting gantry (2); 4) Install another CCD Repeat steps 1) to 3) to complete the installation of another CCD photoelectric sensor (603); 5) Install the wavefront curvature sensor protective housing The adjustment mechanism (1) above the supporting gantry (2) is dismantled, the left supporting plate (301), the right supporting plate (302) and the assembly plate (3) are removed, the imaging substrate (9) is removed, a supporting column (913) is installed on the bottom of the imaging substrate (9), a protective shell (912) is installed via a pair of alignment rods (911), and then a glass upper cover (910) is installed, thereby completing the non-destructive assembly of the two CCD photoelectric sensors; The spacing between adjacent CCD photoelectric sensors is 0.4-0.6 mm, and the angle between two CCD photoelectric sensors is 0.03°-0.04°.

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