CN114055402B - Self-adaptive pitch infrared soft-package lens pressing ring fastening device - Google Patents
Self-adaptive pitch infrared soft-package lens pressing ring fastening device Download PDFInfo
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- CN114055402B CN114055402B CN202111211316.1A CN202111211316A CN114055402B CN 114055402 B CN114055402 B CN 114055402B CN 202111211316 A CN202111211316 A CN 202111211316A CN 114055402 B CN114055402 B CN 114055402B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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Abstract
An infrared soft-package lens pressing ring fastening device with self-adaptive screw pitch relates to the technical field of precision instrument manufacturing, in particular to an infrared soft-package lens pressing ring fastening device with self-adaptive screw pitch, which has low assembly difficulty, wide adaptation range and self-adaptive function. The invention relates to an infrared soft-package lens clamping ring fastening device with self-adaptive screw pitch, which is characterized by comprising a two-dimensional moving platform, a clamping ring fastening component and a rectangular base, wherein the two-dimensional moving platform and the clamping ring fastening component are respectively arranged at two ends of the rectangular base. According to the invention, the rotary ball spline ensures that the mechanism has two degrees of freedom of linear motion and rotary motion, the spring assisting mechanism provides the pressing force required by fastening the pressing ring, and simultaneously drives the spline shaft to axially move along with the threaded fit; the infrared lens pressing ring can be used for fastening various types of infrared lens pressing rings; the self-adaptive lens clamping ring has the self-adaptive function, can adapt to the screw pitch of the non-use type clamping ring, and can be fastened by only providing corresponding torque.
Description
Technical Field
The invention relates to the technical field of precision instrument manufacturing, in particular to an infrared soft-package lens pressing ring fastening device with low assembly difficulty, wide adaptation range and self-adaptive screw pitch and self-adaptive function.
Background
A clamping ring is an important component for fastening a lens in a lens barrel. The assembly effect of the lens fastening device is directly related to the product quality of the lens.
Currently, commonly used lens press ring fastening devices are generally classified into two types, hand-held and non-hand-held, according to the manner in which they are operated.
The hand-held clamping ring fastening device is mainly a special clamping ring spanner, and the operation mode is as follows: corresponding buckling teeth are designed according to the size of the lens pressing ring and the shape of the buckling groove, then the wrench is matched with the buckling teeth and the buckling groove of the pressing ring manually, after the wrench is tightly pressed hard, the handle of the wrench of the pressing ring is rotated to fasten the pressing ring, and the torque applied manually is transmitted to the pressing ring through the buckling teeth of the wrench. In the use process, proper pressing force is required to be manually applied in the whole process so as to ensure that the buckling teeth of the wrench and the buckling grooves of the pressing ring can be tightly matched. However, in practice, the manually applied tightening force is not uniform, and in particular, the frictional resistance of the threads increases at a later stage of the tightening process, and the manually applied torque force and tightening force may fluctuate greatly. Once the pressing force is reduced, and the torsion is increased, the pressing ring spanner is enabled to be separated from the buckling groove due to the material and the size of the buckling groove of the pressing ring, and the buckling groove is damaged, so that the production of a product is affected. Even more serious, when the wrench is disengaged from the clamping ring, the wrench can strike the infrared lens, resulting in damage to the lens and high value loss. In order to reduce the risk of disengagement, the operator must strictly control the application of force during the tightening process, which is slow and the tightening effect varies considerably. Therefore, the hand-held special clamping ring fastening device has high requirements for personnel operation, high safety risk during operation, low assembly efficiency and poor consistency of clamping ring assembly, and is a serious quality risk point for high-precision infrared thermal imaging products.
The special clamping ring fastening device is not hand-held and consists of a clamping ring spanner and a screw mechanism, wherein one end of the screw mechanism is provided with the clamping ring spanner, and the other end of the screw mechanism is used as a torque input end, and the thread pitch of the screw mechanism is consistent with the thread pitch of the lens clamping ring. The operation mode is that the lens pressing ring is buckled with the pressing ring spanner when in use, then the product position is fixed, and the screw rod mechanism is twisted to drive the pressing ring spanner to rotate, thereby fastening the pressing ring. The device maintains the close fit of the spanner and the pressing ring through the screw mechanism, but the screw mechanism has specificity, and the screw mechanism with different screw pitches and the pressing ring spanner with different types need to be replaced aiming at the lens pressing rings with different types, so that the number and the types of matched parts required by the device are larger, the use cost of the device is higher, the maintenance difficulty is higher, and the production of thermal infrared imagers with small batches and multiple varieties is not facilitated.
The two types of devices mainly have the following problems: 1. the assembly difficulty is high, and the assembly can be completed only by the worker with extremely high operation precision and proficiency; 2. the adaptation range is small, and screw mechanisms with different pitches and different types of clamping ring wrenches need to be replaced aiming at different types of lens clamping rings; 3. the self-adaptive function is not available, and the change of the screw pitch of the lens pressing rings of different types cannot be adapted in the assembly process; therefore, there is a need for an infrared soft lens clamping ring fastening device with low assembly difficulty, wide adaptation range and self-adaptive screw pitch, which has self-adaptive function.
Disclosure of Invention
The invention aims to solve the problems of high assembly difficulty, small adaptation range and no self-adaptation function of the conventional lens pressing ring fastening device, and provides the self-adaptation screw pitch infrared soft-package lens pressing ring fastening device with the advantages of low assembly difficulty, wide adaptation range and self-adaptation function.
The invention relates to an infrared soft-package lens clamping ring fastening device with self-adaptive screw pitch, which is characterized by comprising a two-dimensional moving platform, a clamping ring fastening component and a rectangular base, wherein the two-dimensional moving platform and the clamping ring fastening component are respectively arranged at two ends of the rectangular base, and the two-dimensional moving platform and the clamping ring fastening component are respectively arranged at two ends of the rectangular base, wherein:
the two-dimensional moving platform comprises a cross sliding table and a thermal imager tooling plate, the cross sliding table is formed by vertically stacking two sliding tables, a sliding table at the bottom layer is fixed on a rectangular base, a sliding table at the top layer is stacked on a screw rod of the sliding table at the bottom layer and is vertical to the sliding table at the bottom layer, the thermal imager tooling plate is arranged on the screw rod of the sliding table at the top layer, the screw rod of the sliding table at the bottom layer is rotated, the sliding table at the top layer is transversely or vertically moved, the screw rod of the sliding table at the top layer is rotated, and the thermal imager tooling plate is vertically or transversely moved;
the clamping ring fastening assembly comprises an assembly bracket, a rotary rolling spline support, a spline shaft, a rotary handle, a spring mechanism and a clamping ring spanner, wherein the assembly bracket is vertically fixed on a rectangular base, a round hole is formed in the upper portion of the assembly bracket, the rotary rolling spline support is arranged in the round hole, the spline shaft is arranged at the center of the rotary rolling spline support and penetrates through the center of the rotary rolling spline support, the clamping ring spanner is arranged at the end of the inner side of the spline shaft, which faces the direction of the two-dimensional moving platform, the rotary handle is arranged at the end of the outer side of the spline shaft, and the spring mechanism is sleeved on the spline shaft between the clamping ring spanner and the rotary rolling spline support.
The lower part of the component support is designed into an X-shaped hollow ball spline support plate, a right-angle connecting piece is connected to the inner wall of the lower part between the components, the right-angle connecting piece is in a right-angle triangle shape, one right-angle side is fixedly connected with the inner side wall of the component support, the other right-angle side is fixed on the rectangular base, the hollow ball spline support plate is adopted, the weight of the component support can be reduced under the condition that the strength of the component support is not reduced, and the right-angle connecting piece is fixedly connected to the inner side wall between the components, so that the stability and the supporting strength of the component support are greatly improved.
The rotary ball spline support comprises a ball spline bearing, a mounting bearing, a bearing seat, a gasket and a bearing cover, wherein the bearing seat is arranged in an inner ring of the rotary ball spline support, the mounting bearing which is arranged in double rows is arranged in the bearing seat, the ball spline bearing is arranged in the mounting bearing, the bearing cover is arranged at the outer side end of the bearing seat, and the gasket is arranged in a gap between the bearing cover and the bearing seat.
The rotary handle comprises a handle rod, a handle connector and a connecting pressing block, wherein the handle connector is connected with the end of the spline shaft through a spline, the outer end of the handle connector is provided with the connecting pressing block, the connecting pressing block is covered at the joint of the handle connector and the spline shaft, the handle rod is vertically arranged on the side wall of the handle connector, the handle connector is rotated through the handle rod, and then the spline shaft is driven to rotate.
The spring mechanism comprises a compression spring and a spring retainer ring, wherein the spring retainer ring is arranged on the end head of the inner side of the rotary ball spline support, the compression spring is sleeved on the spline shaft, one end of the compression spring is connected with the spring retainer ring, and the other end of the compression spring is connected with the pressing ring spanner.
The pressing ring spanner comprises a spanner connector and a ring spanner, wherein the spanner connector is connected with a spline shaft through a spline and is fixedly connected with one end of the compression spring; the ring spanner is installed on the spanner connector, is provided with the recess on the ring spanner inner wall, and the internal diameter of recess matches with the external diameter of lens clamping ring.
The specific operation process is as follows:
1) An operator fixes the thermal infrared imager on a thermal imager tooling plate at the top of the two-dimensional moving platform, and adjusts screw rods at the bottom layer and the top layer of the cross sliding table to enable a lens pressing ring on the thermal infrared imager to be buckled in a groove on a ring spanner in the pressing ring spanner;
2) The thermal imager is moved along the axial direction through the sliding table to drive the pressing ring spanner and the spline shaft to rotate, and in the process, the compression spring is compressed, so that positive pressure is provided to ensure that the pressing ring spanner is firmly buckled with the lens pressing ring, and the compression amount of the spring is regulated along with the specific pressing ring;
3) The rotary handle applies torsion, and the rotary ball spline support provides rotational freedom degree, so that the ball spline rotates under the action of the torsion of the rotary handle, and the lens pressing ring is driven to rotate; meanwhile, due to the threaded structure of the lens pressing ring, axial movement is generated in the rotating process, under the action of the pressing force generated by the spring mechanism, the spline shaft moves directionally along with the movement of the pressing ring spanner under the action of the ball spline bearing so as to adapt to the change of the screw pitch of the lens pressing ring, the lens pressing ring fastening work is completed, and the pressing ring component provides sufficient stability in the whole operating process.
The self-adaptive pitch infrared soft-package lens pressing ring fastening device has reasonable structure, scientific design and low assembly difficulty, ensures that the mechanism has two degrees of freedom of linear motion and rotational motion through the rotary ball spline, and the spring assisting mechanism provides the pressing force required by pressing ring fastening and drives the spline shaft to axially move along with the threaded fit; the infrared lens pressing ring can be used for fastening various types of infrared lens pressing rings; the self-adaptive lens clamping ring has the self-adaptive function, can adapt to the screw pitch of the non-use type clamping ring, and can be fastened by only providing corresponding torque.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic side view of the present invention.
The device comprises a rectangular base 1, a cross sliding table 2, a thermal imager tooling plate 3, a spline shaft 4, a ball spline support plate 5, a right-angle connecting piece 6, a ball spline bearing 7, an installation bearing 8, a bearing seat 9, a gasket 10, a bearing cover 11, a handle bar 12, a handle connector 13, a connection pressing block 14, a compression spring 15, a spring retainer 16, a wrench connector 17, a ring wrench 18 and a groove 19.
Detailed Description
Example 1: the utility model provides an infrared soft-assembling lens clamping ring fastener of self-adaptation pitch, includes two-dimensional moving platform, clamping ring fastening assembly and rectangle base 1, and two-dimensional moving platform and clamping ring fastening assembly set up respectively at the both ends of rectangle base 1, wherein:
the two-dimensional moving platform comprises a cross sliding table 2 and a thermal imager tooling plate 3, wherein the cross sliding table 2 is formed by vertically stacking two sliding tables up and down, a sliding table at the bottom layer is fixed on a rectangular base 1, a sliding table at the top layer is stacked on a screw rod of the sliding table at the bottom layer and is vertical to the sliding table at the bottom layer, the thermal imager tooling plate 3 is arranged on the screw rod of the sliding table at the top layer, the screw rod of the sliding table at the bottom layer is rotated, the sliding table at the top layer is transversely or vertically moved, the screw rod of the sliding table at the top layer is rotated, and the thermal imager tooling plate 3 is vertically or horizontally moved;
the clamping ring fastening assembly comprises an assembly bracket, a rotary rolling spline support, a spline shaft 4, a rotary handle, a spring mechanism and a clamping ring spanner, wherein the assembly bracket is vertically fixed on the rectangular base 1, a round hole is formed in the upper portion of the assembly bracket, the rotary rolling spline support is arranged in the round hole, the spline shaft 4 is arranged at the center of the rotary rolling spline support, the spline shaft 4 penetrates through the center of the rotary rolling spline support, the clamping ring spanner is arranged at the end of the inner side of the spline shaft 4, which faces the direction of the two-dimensional moving platform, the rotary handle is arranged at the end of the outer side, and the spring mechanism is sleeved on the spline shaft 4 between the clamping ring spanner and the rotary rolling spline support.
The lower part of the component support is designed into the hollow ball spline support plate 5 of X type, the right-angle connecting piece 6 is connected to the inner wall of the lower part between the components, the right-angle connecting piece 6 is in a right-angle triangle shape, one right-angle side is fixedly connected with the inner side wall of the component support, the other right-angle side is fixed on the rectangular base 1, the hollow ball spline support plate 5 is adopted, the weight of the component support can be reduced under the condition that the strength of the component support is not reduced, the right-angle connecting piece 6 is fixedly connected to the inner side wall between the components, and the stability and the supporting strength of the component support are greatly improved.
The rotary ball spline support comprises a ball spline bearing 7, a mounting bearing 8, a bearing seat 9, a gasket 10 and a bearing cover 11, wherein the bearing seat 9 is arranged in an inner ring of the rotary ball spline support, the mounting bearing 8 which is arranged in double rows is arranged in the bearing seat 9, the ball spline bearing 7 is arranged in the mounting bearing 8, the bearing cover 11 is arranged at the outer side end of the bearing seat 9, and the gasket 10 is arranged in a gap between the bearing cover 11 and the bearing seat 9.
The rotary handle comprises a handle rod 12, a handle connector 1713 and a connecting pressing block 14, wherein the handle connector 1713 is connected with the end head of the spline shaft 4 through a spline, the connecting pressing block 14 is arranged at the outer end of the handle connector 1713, the connecting pressing block 14 covers the joint of the handle connector 1713 and the spline shaft 4, the handle rod 12 is vertically arranged on the side wall of the handle connector 1713, and the handle connector 1713 is rotated through the handle rod 12 so as to drive the spline shaft 4 to rotate.
The spring mechanism comprises a compression spring 15 and a spring retainer 16, wherein the spring retainer 16 is arranged on the inner end of the rotary ball spline support, the compression spring 15 is sleeved on the spline shaft 4, one end of the compression spring is connected with the spring retainer 16, and the other end of the compression spring is connected with the pressing ring spanner.
The pressing ring spanner comprises a spanner connector and a ring spanner 18, wherein the spanner connector is connected with the spline shaft 4 through a spline and is fixedly connected with one end of the compression spring 15; the ring spanner 18 is installed on the spanner connector, is provided with recess 19 on the ring spanner 18 inner wall, and the internal diameter of recess 19 matches with the external diameter of lens clamping ring.
The specific operation process is as follows:
1) An operator fixes the thermal infrared imager on a thermal imager tooling plate 3 at the top of the two-dimensional moving platform, and adjusts screw rods at the bottom layer and the top layer of the cross sliding table 2 so that a lens pressing ring on the thermal infrared imager is buckled in a groove 19 on a ring spanner 18 in the pressing ring spanner;
2) The thermal imager is moved along the axial direction through the sliding table to drive the pressing ring spanner and the spline shaft 4 to rotate, and in the process, the compression spring 15 is compressed, so that positive pressure is provided to ensure that the pressing ring spanner is firmly buckled with the lens pressing ring, and the compression amount of the spring is regulated along with the specific pressing ring;
3) The rotary handle applies torsion, and the rotary ball spline support provides rotational freedom degree, so that the ball spline rotates under the action of the torsion of the rotary handle, and the lens pressing ring is driven to rotate; meanwhile, due to the threaded structure of the lens pressing ring, axial movement is generated in the rotating process, under the action of the pressing force generated by the spring mechanism, the spline shaft 4 moves directionally along with the movement of the pressing ring spanner under the action of the ball spline bearing 7 so as to adapt to the change of the screw pitch of the lens pressing ring, the fastening work of the lens pressing ring is completed, and the pressing ring component provides sufficient stability in the whole operating process.
Claims (3)
1. The utility model provides an infrared soft-packaged lens clamping ring fastener of self-adaptation pitch, its characterized in that this fastener includes two-dimensional moving platform, clamping ring fastening component and rectangle base (1), and two-dimensional moving platform and clamping ring fastening component set up respectively at the both ends of rectangle base (1), wherein:
the two-dimensional moving platform comprises a cross sliding table (2) and a thermal imager tooling plate (3), wherein the cross sliding table (2) is formed by vertically stacking two sliding tables up and down, a sliding table at the bottom layer is fixed on a rectangular base (1), a sliding table at the top layer is stacked on a screw rod of the sliding table at the bottom layer and is vertical to the sliding table at the bottom layer, the thermal imager tooling plate (3) is arranged on the screw rod of the sliding table at the top layer, the screw rod of the sliding table at the bottom layer is rotated, the sliding table at the top layer is transversely or vertically moved, the screw rod of the sliding table at the top layer is rotated, and the thermal imager tooling plate (3) is vertically or transversely moved;
the clamping ring fastening assembly comprises an assembly bracket, a rotary rolling spline support, a spline shaft (4), a rotary handle, a spring mechanism and a clamping ring spanner, wherein the assembly bracket is vertically fixed on a rectangular base (1), a round hole is formed in the upper part of the assembly bracket, the rotary rolling spline support is arranged in the round hole, the spline shaft (4) is arranged at the center of the rotary rolling spline support, the spline shaft (4) penetrates through the center of the rotary rolling spline support, the clamping ring spanner is arranged at the end of the inner side of the spline shaft (4) facing the direction of the two-dimensional moving platform, the rotary handle is arranged at the end of the outer side of the spline shaft, and the spring mechanism is sleeved on the spline shaft (4) between the clamping ring spanner and the rotary rolling spline support;
the rotary ball spline support comprises a ball spline bearing (7), a mounting bearing (8), a bearing seat (9), a gasket (10) and a bearing cover (11), wherein the bearing seat (9) is arranged in an inner ring of the rotary ball spline support, the mounting bearing (8) which is arranged in double rows is arranged in the bearing seat (9), the ball spline bearing (7) is arranged in the mounting bearing (8), the bearing cover (11) is arranged on the outer side end of the bearing seat (9), and the gasket (10) is arranged in a gap between the bearing cover (11) and the bearing seat (9);
the rotary handle comprises a handle rod (12), a handle connector (13) and a connecting press block (14), wherein the handle connector (13) is connected with the end head of the spline shaft (4) through a spline, the connecting press block (14) is arranged at the outer end of the handle connector (13), the connecting press block (14) covers the joint of the handle connector (13) and the spline shaft (4), the handle rod (12) is vertically arranged on the side wall of the handle connector (13), and the handle connector (13) is rotated through the handle rod (12) so as to drive the spline shaft (4) to rotate;
the spring mechanism comprises a compression spring (15) and a spring retainer ring (16), the spring retainer ring (16) is arranged on the end head of the inner side of the rotary ball spline support, the compression spring (15) is sleeved on the spline shaft (4), one end of the compression spring is connected with the spring retainer ring (16), and the other end of the compression spring is connected with the pressing ring spanner;
the pressing ring spanner comprises a spanner connector (17) and a ring spanner (18), wherein the spanner connector (17) is connected with the spline shaft (4) through a spline and is fixedly connected with one end of the compression spring (15); the ring spanner (18) is installed on the spanner connector (17), is provided with recess (19) on ring spanner (18) inner wall, and the internal diameter of recess (19) matches with the external diameter of lens clamping ring.
2. The self-adaptive pitch infrared soft lens clamping ring fastening device is characterized in that the lower part of the component support is designed into an X-shaped hollowed ball spline support plate (5), right-angle connecting pieces (6) are connected to the inner walls of the lower parts between the components, the right-angle connecting pieces (6) are right-angle triangles, one right-angle side is fixedly connected with the inner side walls of the component support, the other right-angle side is fixed on the rectangular base (1), and the hollowed ball spline support plate (5) is adopted, so that the weight of the component support can be reduced under the condition that the strength of the component support is not reduced, and the right-angle connecting pieces (6) are fixedly connected to the inner side walls between the components, so that the stability and the supporting strength of the component support are greatly improved.
3. The self-adaptive pitch infrared soft lens clamp ring fastening device according to claim 1, characterized in that the specific operation process is as follows:
1) An operator fixes the thermal infrared imager on a thermal imager tooling plate (3) at the top of the two-dimensional moving platform, and adjusts screw rods at the bottom layer and the top layer of the cross sliding table (2) so that a lens pressing ring on the thermal infrared imager is buckled in a groove (19) on a ring spanner (18) in the pressing ring spanner;
2) The thermal imager is moved along the axial direction through the sliding table to drive the pressing ring spanner and the spline shaft (4) to rotate, and in the process, the compression spring (15) is compressed, so that positive pressure is provided to ensure that the pressing ring spanner is firmly buckled with the lens pressing ring, and the compression amount of the spring is regulated along with the specific pressing ring;
3) The rotary handle applies torsion, and the rotary ball spline support provides rotational freedom degree, so that the ball spline rotates under the action of the torsion of the rotary handle, and the lens pressing ring is driven to rotate; meanwhile, due to the thread structure of the lens pressing ring, axial movement is generated in the rotating process, under the action of the pressing force generated by the spring mechanism, the spline shaft (4) moves directionally along with the movement of the pressing ring spanner under the action of the ball spline bearing (7) so as to adapt to the change of the thread pitch of the lens pressing ring, the fastening work of the lens pressing ring is completed, and the pressing ring component provides sufficient stability in the whole operating process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111211316.1A CN114055402B (en) | 2021-10-18 | 2021-10-18 | Self-adaptive pitch infrared soft-package lens pressing ring fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111211316.1A CN114055402B (en) | 2021-10-18 | 2021-10-18 | Self-adaptive pitch infrared soft-package lens pressing ring fastening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114055402A CN114055402A (en) | 2022-02-18 |
| CN114055402B true CN114055402B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111211316.1A Active CN114055402B (en) | 2021-10-18 | 2021-10-18 | Self-adaptive pitch infrared soft-package lens pressing ring fastening device |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0923098A (en) * | 1995-07-04 | 1997-01-21 | Sony Corp | Component installing equipment |
| JP2000009981A (en) * | 1998-06-22 | 2000-01-14 | Asahi Seimitsu Kk | Lens-barrel caulking device |
| CN103495971B (en) * | 2013-06-06 | 2016-02-03 | 合肥工业大学 | A kind of five degree of freedom Combined robot platform |
| CN106826647A (en) * | 2017-03-23 | 2017-06-13 | 中国科学院西安光学精密机械研究所 | A kind of picture frame trim ring spanner |
| CN108500606A (en) * | 2018-05-30 | 2018-09-07 | 苏州智华汽车电子有限公司 | Vehicle-mounted pick-up head controller FPC detections and assembling machine casing jig |
| CN110757135A (en) * | 2019-11-01 | 2020-02-07 | 宁波傲视智绘光电科技有限公司 | Dismounting tool |
| CN213122403U (en) * | 2020-08-25 | 2021-05-04 | 重庆玖胜光学有限公司 | Pressing ring fastening device for optical lens |
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2021
- 2021-10-18 CN CN202111211316.1A patent/CN114055402B/en active Active
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