Fixing jig for assembling silicon mirror on sensor lens

Abstract

The invention relates to the technical field of jigs, in particular to a sensor lens assembly silicon mirror fixing jig which comprises a positioning base, a magnetic attraction pressing piece magnetically attracted to a fixed position on the positioning base and a lower pressing cover plate tightly pressed on the positioning base in a guiding mode. A plurality of positioning holes used for positioning the lens and the silicon mirror are formed in the position, covered by the magnetic suction pressing piece, of the positioning base, and the edge of the positioning base is provided with a lock catch structure capable of being separated; the fixing jig composed of the positioning base, the magnetic attraction pressing piece and the lower pressing cover plate is simple in structure, can achieve glue sealing operation on the basis of primary fixing of the lens and the silicon mirror, can also achieve covering of the magnetic attraction pressing piece after glue sealing and attaching of the lens and the silicon wafer, and is convenient to use. The arrangement of the magnetic suction pressing sheet can ensure the flexible operation in the sealing stage and the checking of the sealing condition, and after the rubber material arranged between the silicon wafer and the lens meets the requirement, the upper and lower pressing cover plates can be covered to press and fix the lens and the silicon wafer.

Description

Technical Field

[0001] The invention relates to the technical field of jigs, and in particular to a fixing jig for assembling a silicon mirror of a sensor lens. Background Art

[0002] In today's era of rapid technological development, photosensitive probes and products with similar lens structures play a vital role in various fields. With the continuous advancement of technology, the requirements for the miniaturization of photosensitive probes and meeting specific design needs are getting higher and higher. In the manufacturing process of photosensitive probes, the assembly technology of the silicon mirror on the lens is crucial. At present, in order to achieve design goals such as the miniaturization of photosensitive probes, there is usually no assembly positioning structure designed at the position where the lens assembles the silicon mirror. Instead, the silicon mirror is fixed to the lens by sealing with glue. The specific operation is to set a specific fixing fixture, first glue the lens and the silicon mirror, then position them, and then put them in the oven for baking. After the glue is cured, take them out to complete the assembly of the lens and the silicon mirror.

[0003] However, the existing lens and silicon mirror fixing jigs have many problems in practical applications. Although the fixing jigs with simple structures can quickly position the lens and silicon mirror to a certain extent, it is difficult to ensure the stability of the lens and silicon mirror after positioning. In the actual production process, the relative position of the lens and the silicon mirror may shift due to slight vibration or external force, or the silicon mirror may shift due to sealing glue, thereby affecting the performance and quality of the photosensitive probe. Although the fixing jigs with complex structures can theoretically provide higher positioning stability, the operation is extremely cumbersome. In the process of positioning the lens and silicon mirror in the jig, a lot of time and effort are required, which seriously affects the production efficiency. In addition, after the glue is cured, it is not easy to remove the photosensitive probe from the jig, which increases the difficulty and complexity of the operation.

[0004] In view of this, in order to achieve rapid assembly of lenses and silicon wafers and ensure the stability and accuracy of the positioning of lenses and silicon wafers, it is urgently necessary to propose a new technical solution. This solution should be able to quickly and accurately position the lens and silicon mirror, and ensure that the relative position of the lens and the silicon mirror remains stable during the entire assembly process and subsequent use. At the same time, it should also have the advantages of simple operation and easy removal of the photosensitive probe from the fixture to meet the requirements of modern industrial production for high efficiency and high quality. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0006] A fixing jig for assembling a silicon mirror with a sensor lens comprises a positioning base, a magnetic pressure sheet which is magnetically adsorbed on a fixed position on the positioning base, and a lower pressing cover plate which is guided and pressed against the positioning base. A plurality of positioning holes for positioning the lens and the silicon mirror are provided on the positioning base in the position covered by the magnetic pressure sheet, and a lock structure which can be pried apart is provided on the edge of the positioning base. The lower pressing cover plate is fastened and pressed against the positioning base by the lock structure, and a plurality of elastic columns for pressing the silicon mirror into the positioning holes are provided downwardly on the lower pressing cover plate; a hollow opening is provided on the magnetic pressure sheet at a position corresponding to each positioning hole, and the hollow opening is used to confine the silicon mirror within the positioning hole, and the hollow opening cooperates with the elastic column to make way for each positioning hole.

[0007] Preferably, a magnetic positioning groove matching the magnetic pressure plate is provided on the positioning base, and uniformly distributed magnets are arranged in the magnetic positioning groove, and the magnets are used to adsorb the magnetic pressure plate.

[0008] Preferably, the hollow opening is a circular structure that matches the positioning hole, and a plurality of abutment portions are extended and formed on the inner periphery of the hollow opening, and the extended end portions of the plurality of abutment portions are spaced apart to form avoidance portions, so that the elastic column can pass through the magnetic suction pressure plate along the avoidance portions and then enter the positioning hole.

[0009] Preferably, two locking structures are provided, and the two locking structures are respectively arranged at the left and right sides of the positioning base. The locking structure includes a fixed base installed at the side position of the positioning base, a bend buckle rotatably connected to the fixed base, and a torsion spring arranged between the bend buckle and the fixed base. The upper end of the bend buckle has a downward pressing part, and the bend buckle is driven by the elastic force of the torsion spring to flip the downward pressing part to the top of the fixed base, or the bend buckle overcomes the elastic force of the torsion spring to flip the downward pressing part away from the top of the fixed base, so that the downward pressing cover plate can be pressed by the downward pressing part after being supported on the fixed base.

[0010] Preferably, a guide column is further provided on the positioning base, and a linear bearing matching the guide column is provided on the lower pressing cover plate, and the lower pressing cover plate is guided and positioned on the positioning base through the cooperation of the linear bearing and the guide column.

[0011] Preferably, the positioning base has a metal plate and a wear-resistant plate installed at the lower end of the metal plate, the locking structure is installed on the wear-resistant plate, and a notch is provided on the metal plate at a position corresponding to the locking structure.

[0012] Preferably, the elastic column includes a copper sleeve body connected to the lower pressure cover plate, a spring arranged inside the copper sleeve body, and a lower pressure column slidably connected to the lower end of the copper sleeve body and elastically docked with the spring, and a flexible cap for contacting the silicon mirror is arranged at the lower end of the lower pressure column.

[0013] Preferably, an external thread is provided on the outer side of the copper sleeve body, a threaded through hole is provided on the lower pressing cover plate, and the copper sleeve body is threadedly connected to the lower pressing cover plate through the cooperation of the external thread and the threaded through hole.

[0014] Preferably, the threaded through hole is provided with internal threads extending to its upper and lower ends, so that the height of the copper sleeve body threadedly connected to the lower pressure cover plate can be changed; the height of the copper sleeve body is greater than the rear end of the lower pressure cover plate, and a nut for abutting and locking on the lower pressure cover plate is also threadedly connected to the outside of the copper sleeve body.

[0015] Preferably, plate taking slots extending into the magnetic positioning slot are provided at the front and rear positions of the positioning base, and the positioning base suspends the front and rear ends of the magnetic pressure plate through the plate taking slots.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The fixing fixture composed of a positioning base, a magnetic pressure piece and a lower pressure cover plate has a simple structure and can realize the sealing operation of the lens and the silicon mirror on the basis of preliminary fixation, and can also cover the magnetic pressure piece after the sealing and bonding of the lens and the silicon wafer. The setting of the magnetic pressure piece can ensure flexible operation and viewing of the sealing status during the sealing stage. After the glue set between the silicon wafer and the lens meets the requirements, the upper and lower pressure covers can be covered to press and fix the lens and the silicon wafer. The dual functions of the magnetic pressure piece and the lower pressure cover plate can effectively prevent the relative position of the lens and the silicon mirror from shifting during the assembly process and subsequent use, thereby ensuring the performance and quality of the photosensitive probe, that is, the fixing fixture can be moved arbitrarily after covering, so that the fixing fixture can be quickly and stably placed in the oven for baking.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the split structure of the present invention; Figure 3 It is a schematic diagram of the structure of the magnetic suction pressing sheet in the present invention; Figure 4 It is a cross-sectional schematic diagram of the elastic column in the present invention.

[0020] The reference numerals and names in the figures are as follows: Positioning base 10, metal plate 101, wear-resistant plate 102, positioning hole 11, locking structure 12, fixing seat 121, prying buckle 122, pressing portion 123, magnetic positioning groove 13, magnet 14, guide column 15, plate taking groove 16, magnetic pressure sheet 20, hollow opening 21, abutment portion 22, pressing cover plate 30, elastic column 31, copper sleeve body 311, spring 312, pressing column 313, flexible cap 314, nut 315, linear bearing 32, threaded through hole 33. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-4 In an embodiment of the present invention, a fixing jig for assembling a silicon mirror of a sensor lens is provided, comprising a positioning base 10, a magnetic pressure sheet 20 magnetically adsorbed at a fixed position on the positioning base 10, and a lower pressing cover plate 30 guided and pressed against the positioning base 10. A plurality of positioning holes 11 for positioning the lens and the silicon mirror are provided on the positioning base 10 in a position covered by the magnetic pressure sheet 20, and a lock structure 12 that can be pried apart is provided on the edge of the positioning base 10. The lower pressing cover plate 30 is fastened and pressed against the positioning base 10 through the lock structure 12. A plurality of elastic columns 31 for pressing the silicon mirror into the positioning hole 11 are provided downwardly on the lower pressing cover plate 30; a hollow opening 21 is provided at a position corresponding to each positioning hole 11 on the magnetic pressure sheet 20, and the hollow opening 21 is used to restrict the silicon mirror in the positioning hole 11, and the hollow opening 21 is matched with the elastic column 31 to make way. When in use, first, place the lens and the silicon mirror in the positioning hole 11 of the positioning base 10. The design of the positioning hole 11 can ensure that the lens and the silicon mirror are initially positioned in the correct position. Then, the magnetic pressure plate 20 is magnetically adsorbed on the fixed position of the positioning base 10. The hollow opening 21 on the magnetic pressure plate 20 further restricts the silicon mirror in the positioning hole 11 to prevent it from moving in the horizontal direction. Then, the hollow structure is used to inject glue to seal the lens and the silicon mirror. Then, the lower pressure cover plate 30 is fastened and pressed onto the positioning base 10 through the pryable locking structure 12 at the edge of the positioning base 10. The multiple elastic columns 31 on the lower pressure cover plate 30 face downward, pressing the silicon mirror in the positioning hole 11 to ensure that the silicon mirror is stable in the vertical direction.

[0023] The fixing fixture composed of the positioning base 10, the magnetic pressure sheet 20 and the lower pressing cover plate 30 has a simple structure, and can realize the sealing operation of the lens and the silicon lens on the basis of preliminary fixation, and can also cover the magnetic pressure sheet 20 after the sealing and bonding of the lens and the silicon wafer. The setting of the magnetic pressure sheet 20 can ensure flexible operation and check of the sealing status in the sealing stage. After the glue set between the silicon wafer and the lens meets the requirements, the upper and lower pressing cover plates 30 can be covered to press and fix the lens and the silicon wafer. The dual functions of the magnetic pressure sheet 20 and the lower pressing cover plate 30 can effectively prevent the lens and the silicon wafer from being damaged during the assembly process and subsequent During use, the relative position of the lens and the silicon mirror is offset, which ensures the performance and quality of the photosensitive probe, that is, the fixing fixture can be moved arbitrarily after the cover is closed, so that the fixing fixture can be quickly and stably placed in the oven for baking operations; the operation of each component is relatively simple, the magnetic pressure sheet 20 is quickly fixed by magnetic adsorption, and the locking structure 12 can be pried open to facilitate the tightening and opening of the pressing cover plate 30, which is easy to operate, saves time and energy, and improves production efficiency. This technical solution can meet the requirements of modern industrial production for high efficiency and high quality, is suitable for the assembly of lenses and silicon mirrors of different specifications, and has strong adaptability.

[0024] Please refer to Figure 1-2 , the present embodiment further proposes that a magnetic positioning groove 13 matching the magnetic pressure plate 20 is opened on the positioning base 10, and uniformly distributed magnets 14 are arranged in the magnetic positioning groove 13, and the magnets 14 are used to adsorb the magnetic pressure plate 20; when the magnetic pressure plate 20 is close to the positioning base 10, the magnetic pressure plate 20 will be accurately adsorbed in the magnetic positioning groove 13 under the magnetic force of the magnet 14. By setting the magnetic positioning groove 13 and the internal magnet 14, on the one hand, the magnetic pressure plate 20 can be fixed in a specific position more quickly and accurately, thereby improving the efficiency and accuracy of the operation; on the other hand, the uniformly distributed magnets 14 can ensure that the magnetic pressure plate 20 is subjected to uniform force during the adsorption process, thereby more stably limiting the horizontal position of the silicon mirror, and further enhancing the stability and reliability of the entire fixing fixture during the assembly process. In addition, plate retrieval grooves 16 extending into the magnetic positioning groove 13 are provided at the front and rear positions of the positioning base 10. The positioning base 10 uses the plate retrieval grooves 16 to suspend the front and rear ends of the magnetic pressure plate. The design of the plate retrieval grooves 16 makes it easier to take and place the magnetic pressure plate 20, thereby improving the convenience and efficiency of operation.

[0025] Please refer to Figure 2-3The present embodiment further proposes that the hollow opening 21 is a circular structure matching the positioning hole 11, and a plurality of abutment portions 22 are extended and formed on the inner periphery of the hollow opening 21, and the extended end portions of the plurality of abutment portions 22 are spaced apart to form a avoidance, so that the elastic column 31 can pass through the magnetic suction pressure plate along the avoidance and then enter the positioning hole 11; the hollow opening 21 has a simple structural design, so that the magnetic suction pressure plate 20 can stably and accurately fix the silicon mirror horizontally, and at the same time provide an accurate channel for the elastic column 31 of the lower pressing cover plate 30, so that the vertical pressing operation can be carried out smoothly, thereby realizing all-round stable fixation of the lens and the silicon mirror during the assembly process, and improving the assembly accuracy and efficiency.

[0026] Please refer to Figure 1-2 The present embodiment further proposes that two locking structures 12 are provided, and the two locking structures 12 are respectively provided at the left and right sides of the positioning base 10. The locking structure 12 includes a fixing seat 121 installed at the side of the positioning base 10, a bend buckle 122 rotatably connected to the fixing seat 121, and a torsion spring (not shown) provided between the bend buckle 122 and the fixing seat 121. The upper end of the bend buckle 122 has a downward pressing portion 123, and the bend buckle 122 is driven by the elastic force of the torsion spring to press down. The pressing portion 123 is flipped to the top of the fixing seat 121, or the buckle 122 is pried to overcome the elastic force of the torsion spring to make the pressing portion 123 flip away from the top of the fixing seat 121, so that the pressing cover plate 30 can be supported on the fixing seat 121 and then pressed by the pressing portion 123. Through the design of the locking structure 12, the pressing cover plate 30 can be quickly and firmly fixed during the assembly process to ensure the stable position of the silicon mirror, and it can be conveniently opened when needed, which is easy to operate and improves the efficiency and convenience of the entire assembly process.

[0027] Please refer to Figure 1-2 The present embodiment further proposes that a guide column 15 is also provided on the positioning base 10, and a linear bearing 32 matching the guide column 15 is provided on the lower pressure cover plate 30, and the lower pressure cover plate 30 is guided and positioned on the positioning base 10 by the cooperation of the linear bearing 32 and the guide column 15; by setting the cooperation structure of the guide column 15 and the linear bearing 32, the accuracy and efficiency of the installation of the lower pressure cover plate 30 can be guaranteed, and the position deviation during the installation process can be avoided, thereby ensuring the pressing effect of the elastic column 31 on the silicon mirror.

[0028] Please refer to Figure 1-2The present embodiment further proposes that the positioning base 10 has a metal plate 101 and a wear-resistant plate 102 installed at the lower end of the metal plate 101, the locking structure 12 is installed on the wear-resistant plate 102, and a notch is opened on the metal plate 101 at a position corresponding to the locking structure 12; the positioning base 10 adopts a combined structure of the metal plate 101 and the wear-resistant plate 102, which improves the durability of the positioning base 10 and extends the service life of the fixture; the design of the notch on the metal plate 101 cooperates with the installation position of the locking structure 12, so that the operation of the locking structure 12 is more convenient and smooth, and the efficiency and convenience of the assembly process are improved.

[0029] Please refer to Figure 1 , Figure 2 and Figure 4The present embodiment further proposes that the elastic column 31 includes a copper sleeve body 311 connected to the lower pressure cover plate 30, a spring 312 arranged inside the copper sleeve body 311, and a lower pressure column 313 slidably connected to the lower end of the copper sleeve body 311 and elastically docked with the spring 312, and a flexible cap 314 for contacting the silicon mirror is arranged at the lower end of the lower pressure column 313; an external thread is arranged on the outer side of the copper sleeve body 311, and a threaded through hole 33 is opened on the lower pressure cover plate 30, and the copper sleeve body 311 is threadedly connected to the lower pressure cover plate 30 through the cooperation of the external thread and the threaded through hole 33; an internal thread extending to the upper and lower ends of the threaded through hole 33 is arranged in the threaded through hole 33, so that the height of the copper sleeve body 311 threadedly connected to the lower pressure cover plate 30 can be changed; the copper sleeve body 311 The height is greater than the rear end of the lower pressing cover plate 30, and a nut 315 for abutting and locking on the lower pressing cover plate 30 is also threadedly connected on the outside of the copper sleeve body 311; in the operation of assembling the sensor lens to the silicon mirror, the lens and the silicon mirror are first placed in the positioning hole 11 of the positioning base 10 to complete the preliminary positioning, and then the magnetic suction pressing sheet 20 is adsorbed in a fixed position under the action of the magnet 14 in the magnetic suction positioning groove 13 of the positioning base 10, and its hollow opening 21 further limits the horizontal movement of the silicon mirror, and at the same time, glue can be injected through the hollow opening 21 for sealing operation; when the silicon mirror needs to be compressed in the vertical direction, the lower pressing cover plate 30 is positioned on the positioning base 10 through the cooperation and guidance of the linear bearing 32 and the guide column 15; at this time, the elastic column 31 opens The elastic column 31 begins to play a role. The elastic column 31 is composed of a copper sleeve body 311, a spring 312 arranged inside the copper sleeve body 311, and a lower pressure column 313 slidably connected to the lower end of the copper sleeve body 311 and elastically connected to the spring 312. A flexible cap 314 is arranged at the lower end of the lower pressure column 313 for contacting the silicon mirror; the copper sleeve body 311 is threadedly connected to the lower pressure cover plate 30 through the external thread on its outer side and the internal thread in the threaded through hole 33 on the lower pressure cover plate 30; because the internal thread in the threaded through hole 33 extends to the upper and lower ends, the height of the copper sleeve body 311 threadedly connected to the lower pressure cover plate 30 can be changed; in this way, the height of the elastic column 31 can be adjusted according to actual needs to adapt to the assembly requirements of lenses and silicon mirrors of different sizes, or in Flexible adjustment can be made in different assembly stages; after adjusting the height of the copper sleeve body 311, the nut 315 can be connected to the external thread of the copper sleeve body 311, so that the nut 315 can be abutted and locked on the lower pressure cover plate 30 to ensure that the height of the copper sleeve body 311 is fixed, thereby ensuring that the pressing force of the elastic column 31 on the silicon mirror is stable and reliable; during the entire operation process, the spring 312, through its own elastic effect, enables the lower pressure column 313 to elastically expand and contract within a certain range, ensuring that the flexible cap 314 has moderate pressing force on the silicon mirror, and will neither damage the silicon mirror due to excessive pressure nor cause the silicon mirror to be unstable in the vertical direction due to insufficient pressure; at the same time, the setting of the flexible cap 314 can avoid hard contact damage to the silicon mirror and protect the surface quality of the silicon mirror.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A fixing fixture for assembling a silicon mirror of a sensor lens, characterized in that: The invention comprises a positioning base (10), a magnetic pressure plate (20) magnetically adsorbed on a fixed position on the positioning base (10), and a lower pressure cover plate (30) guided and pressed against the positioning base (10); a plurality of positioning holes (11) for positioning a lens and a silicon mirror are provided on the positioning base (10) in a position covered by the magnetic pressure plate (20); a lock structure (12) that can be broken open is provided on the edge of the positioning base (10); the lower pressure cover plate (30) is fastened and pressed against the positioning base (10) by the lock structure (12); a plurality of elastic columns (31) for pressing the silicon mirror into the positioning hole (11) are provided downwardly on the lower pressure cover plate (30); a hollow opening (21) is provided on the magnetic pressure plate (20) at a position corresponding to each positioning hole (11); the hollow opening (21) is used to restrict the silicon mirror into the positioning hole (11), and the hollow opening (21) and the elastic column (31) are matched to each other.

2. A fixing jig for assembling a silicon mirror of a sensor lens according to claim 1, characterized in that: A magnetic attraction positioning groove (13) matching the magnetic attraction pressing plate (20) is provided on the positioning base (10), and uniformly distributed magnets (14) are arranged in the magnetic attraction positioning groove (13), and the magnets (14) are used to adsorb the magnetic attraction pressing plate (20).

3. A fixing jig for assembling a silicon mirror of a sensor lens according to claim 1, characterized in that: The hollow opening (21) is a circular structure matching the positioning hole (11), and a plurality of abutment portions (22) are formed by extending from the inner periphery of the hollow opening (21), and the extended ends of the plurality of abutment portions (22) are spaced apart to form a relief, so that the elastic column (31) can pass through the magnetic suction pressure plate along the relief and then enter the positioning hole (11).

4. The fixing jig for assembling a silicon mirror of a sensor lens according to claim 1, characterized in that: Two locking structures (12) are provided, and the two locking structures (12) are respectively provided at the left and right sides of the positioning base (10). The locking structures (12) include a fixed base (121) installed at the side of the positioning base (10), a bend buckle (122) rotatably connected to the fixed base (121), and a torsion spring provided between the bend buckle (122) and the fixed base (121). The upper end of the bend buckle (122) has a pressing portion (123). The bend buckle (122) is driven by the elastic force of the torsion spring to cause the pressing portion (123) to flip over to the top of the fixed base (121), or the bend buckle (122) overcomes the elastic force of the torsion spring to cause the pressing portion (123) to flip away from the top of the fixed base (121), so that the pressing cover plate (30) can be pressed by the pressing portion (123) after being supported on the fixed base (121).

5. The fixing jig for assembling a silicon mirror of a sensor lens according to claim 1, characterized in that: A guide column (15) is also provided on the positioning base (10), and a linear bearing (32) matching the guide column (15) is provided on the lower pressing cover plate (30). The lower pressing cover plate (30) is guided and positioned on the positioning base (10) through the cooperation of the linear bearing (32) and the guide column (15).

6. A fixing jig for assembling a silicon mirror of a sensor lens according to claim 4, characterized in that: The positioning base (10) comprises a metal plate (101) and a wear-resistant plate (102) mounted on the lower end of the metal plate (101); the locking structure (12) is mounted on the wear-resistant plate (102); and a notch is provided on the metal plate (101) at a position corresponding to the locking structure (12).

7. The fixing jig for assembling a silicon mirror of a sensor lens according to claim 1, characterized in that: The elastic column (31) comprises a copper sleeve body (311) connected to the lower pressure cover plate (30), a spring (312) arranged inside the copper sleeve body (311), and a lower pressure column (313) slidably connected to the lower end of the copper sleeve body (311) and elastically connected to the spring (312), and a flexible cap (314) for contacting the silicon mirror is arranged at the lower end of the lower pressure column (313).

8. The fixing jig for assembling a silicon mirror of a sensor lens according to claim 7, characterized in that: The outer side of the copper sleeve body (311) is provided with an external thread, the lower pressing cover plate (30) is provided with a threaded through hole (33), and the copper sleeve body (311) is threadedly connected to the lower pressing cover plate (30) through the cooperation of the external thread and the threaded through hole (33).

9. A fixing jig for assembling a silicon mirror of a sensor lens according to claim 8, characterized in that: The threaded through hole (33) is provided with internal threads extending to the upper and lower ends thereof, so that the height at which the copper sleeve body (311) is threadedly connected to the lower pressing cover plate (30) can be changed; the height of the copper sleeve body (311) is greater than the rear end of the lower pressing cover plate (30), and a nut (315) for abutting and locking on the lower pressing cover plate (30) is also threadedly connected to the outside of the copper sleeve body (311).

10. A fixing jig for assembling a silicon mirror of a sensor lens according to claim 2, characterized in that: Plate taking grooves (16) extending into the magnetic attraction positioning groove (13) are provided at the front and rear positions of the positioning base (10), and the positioning base (10) allows the front and rear ends of the magnetic attraction pressure plate to be suspended in the air through the plate taking grooves (16).

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