A lens barrel tool positioning seat
By introducing an elastic buffer clamping mechanism and a lead screw structure driven by a servo motor into the lens barrel tooling positioning seat, the problems of surface scratches and inaccurate positioning of the lens barrel are solved, and efficient and precise lens barrel clamping and multi-angle machining are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIJIA MECHANICAL & ELECTRICAL TECHNOLOGY (TIANJIN) CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
Smart Images

Figure CN224527002U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of lens barrel positioning tools, and in particular to a lens barrel tooling positioning seat. Background Technology
[0002] In the process of lens barrel processing and manufacturing, the tooling positioning seat is a key piece of equipment to ensure the processing accuracy of the lens barrel. It needs to achieve stable clamping and precise positioning of the lens barrel to meet the requirements of subsequent cutting, grinding, assembly and other processes.
[0003] Traditional lens barrel positioning fixtures have several shortcomings in use: some fixtures use rigid clamping structures, lacking buffer protection, which can easily cause scratches or deformation to the lens barrel surface during clamping, affecting the optical performance of the lens barrel; the movement of clamping components lacks effective limits, making it easy for offset or rotation to occur, resulting in a decrease in the positioning accuracy of the lens barrel; the synchronization of multiple clamping components is poor, making it difficult to achieve uniform clamping of the lens barrel, which may cause uneven force on the lens barrel and deformation; in addition, when multi-angle machining of the lens barrel is required, the angle adjustment of the positioning fixture is often cumbersome and inefficient. In particular, the rigid clamping method of traditional lens barrel positioning fixtures, due to the lack of elastic buffering structure, is prone to hard contact with the lens barrel surface during clamping, resulting in scratches, indentations and other damage to the lens barrel surface, which seriously affects the machining quality and performance of the lens barrel. This problem has become a major bottleneck restricting the precision machining of lens barrels. Therefore, the above problems need to be solved. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a positioning seat for a lens barrel tool.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lens barrel tooling positioning seat, including a base, with support platforms installed at both ends of the top surface of the base. Each support platform has a vertically opening sliding groove. The two support platforms are vertically rotatably connected by a lead screw at their distal ends. A guide rod is installed on one side of the lead screw, and a servo motor is connected to the upper end of the lead screw via a coupling. The servo motor is installed on the upper end of the support platform. A clamping platform is threadedly connected to the lead screw. The clamping platform has a guide hole in cooperation with the guide rod. The guide rod passes through the guide hole, and a fixing component is installed inside the base. A drive chamber is opened inside the base.
[0006] Preferably, the two clamping platforms have displacement grooves on their adjacent surfaces, and a clamping block with a T-shaped cross-section is slidably connected in the displacement groove. A first rubber block is installed on the adjacent surfaces of the two clamping blocks, and a spring is sleeved on the outer side of the far end of the two clamping blocks. One end of the spring abuts against the other end of the clamping block, and the other end of the spring abuts against one end of the clamping platform.
[0007] Preferably, the fixing component includes a stepper motor installed at the bottom of the drive chamber, a rotating platform fixed to the outside of the stepper motor drive end, the upper end of the rotating platform penetrating the top surface of the base, and a rotating chamber and a power chamber are formed inside the rotating platform. Multiple equidistant clamping chambers are formed outside the rotating chamber, the clamping chambers are connected to the rotating chamber, and a lifting groove is formed in the middle of the bottom surface of the rotating chamber.
[0008] Preferably, a drive motor is installed in the power chamber. The drive end of the drive motor is connected to a rotating rod via a coupling. The other end of the rotating rod passes through the rotating chamber, and a first gear is fixedly connected to the middle section of the rotating rod. A lifting platform with a T-shaped cross-section is slidably installed in the rotating chamber. Multiple equidistant first racks are installed on the outside of the lifting platform, and a second rack is installed at the lower end of the lifting platform. The multiple first racks correspond to the clamping chambers opened on the outside of the rotating chamber. The first racks mesh with the second gear for transmission, and the first gear meshes with the second rack for transmission. The lower end of the second rack is placed in the lifting groove.
[0009] Preferably, the clamping chamber is provided with a fixed platform, and the lower end of the fixed platform is provided with an installation groove. A first connecting rod and a second connecting rod are movably hinged from top to bottom in the installation groove. The other ends of the first connecting rod and the second connecting rod are hinged to the communicating surface between the clamping chamber and the rotating chamber. A second gear is installed on the other end of the second connecting rod, and a second rubber block is installed on the upper adjacent ends of the plurality of fixed platforms.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the clamping block, the spring, and the first rubber block plays an elastic buffering role in clamping the lens barrel, solving the problem that traditional rigid clamping easily leads to scratches and indentations on the lens barrel surface, and improving the surface protection effect during lens barrel clamping; the cooperation between the lead screw, the servo motor, the clamping stage, and the sliding groove plays a role in precisely driving the clamping stage to rise and fall and limiting its position, solving the problem that the clamping components are prone to displacement and rotation, and improving the positioning accuracy of the lens barrel; the cooperation between the drive motor, the rotating rod, the first gear, the second rack, the lifting stage, the first rack, the second gear, and the fixed stage plays a role in synchronously driving the fixed stage to clamp the lens barrel in multiple directions, solving the problem of poor synchronization of multiple clamping components and uneven force on the lens barrel that easily leads to deformation, and improving the stability of lens barrel clamping; the cooperation between the stepper motor and the rotating stage plays a role in conveniently driving the lens barrel to rotate at multiple angles, solving the problem of cumbersome and inefficient angle adjustment operation of traditional positioning seats, and improving the efficiency of multi-angle processing of the lens barrel. Attached Figure Description
[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0012] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;
[0013] Figure 2 This is a half-sectional schematic diagram of the overall structure proposed in this utility model;
[0014] Figure 3 This is a half-sectional schematic diagram of the rotating table and stepper motor structure proposed in this utility model.
[0015] Figure 4 The present utility model proposes Figure 2 Enlarged schematic diagram of section A in the middle;
[0016] Figure 5 The present utility model proposes Figure 3 Enlarged schematic diagram of part B in the middle.
[0017] The components in the diagram are numbered as follows: 1. Base; 2. Support platform; 3. Sliding groove; 4. Lead screw; 5. Clamping platform; 6. Displacement groove; 7. Clamping block; 8. First rubber block; 9. Spring; 10. Drive chamber; 11. Stepper motor; 12. Rotating platform; 13. Lifting groove; 14. Rotating chamber; 15. Power chamber; 16. Clamping chamber; 17. Drive motor; 18. Rotating rod; 19. First gear; 20. Lifting platform; 21. Fixed platform; 22. Second rubber block; 23. Mounting groove; 24. First rack; 25. First connecting rod; 26. Second connecting rod; 27. Second gear; 28. Second rack. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Example: See Figure 1-5This utility model discloses a positioning seat for a lens barrel tool, comprising a base 1, through which a support platform 2 is easily installed; support platforms 2 are installed at both ends of the top surface of the base 1, and the support platforms 2 are vertically provided with sliding grooves 3, through which a clamping platform 5 is easily positioned; the support platforms 2 facilitate the installation of a lead screw 4 and the clamping platform 5; the two support platforms 2 are vertically rotatably connected at their distal ends to the lead screw 4, through which the clamping platform 5 is easily driven; a guide rod is installed on one side of the lead screw 4, and a servo motor is connected to the upper end of the lead screw 4 via a coupling, the servo motor being mounted on the support platform. At the upper end, the lead screw 4 is threadedly connected to a clamping platform 5. The clamping platform 5 has a guide hole that cooperates with the guide rod, through which the guide rod passes. A fixing component is installed inside the base 1. A drive chamber 10 is provided inside the base 1. Displacement grooves 6 are provided on the adjacent surfaces of the two clamping platforms 5. The displacement grooves 6 facilitate the sliding buffer for the clamping blocks 7. A clamping block 7 with a T-shaped cross-section is slidably connected in the displacement grooves 6. The clamping block 7 facilitates the clamping of the lens barrel. A first rubber block 8 is installed on the adjacent surfaces of the two clamping blocks 7. The first rubber block 8 helps to prevent clamping. Block 7 undergoes a rigid collision with the lens barrel; and springs 9 are sleeved on the outer ends of the two clamping blocks 7 at their distal ends, with one end of spring 9 abutting against the other end of clamping block 7 and the other end of spring 9 abutting against one end of clamping platform 5, thus facilitating the clamping blocks 7 to clamp the lens barrel; the fixing assembly includes a stepper motor 11 installed at the bottom of the drive chamber 10, which facilitates the installation of the stepper motor 11; a rotating platform 12 is fixedly connected to the outer side of the drive end of the stepper motor 11, which facilitates the rotation of the rotating platform 12; the upper end of the rotating platform 12 penetrates the base. 1. The top surface is facilitated by the rotating platform 12 for installing the lens tube; the rotating platform 12 is provided with a rotating chamber 14 and a power chamber 15. The rotating chamber 14 facilitates the installation of the lifting platform 20; the power chamber 15 facilitates the installation of the drive motor 17; multiple equidistant clamping chambers 16 are provided on the outside of the rotating chamber 14, which facilitate the installation of the fixing platform 21; the clamping chambers 16 are connected to the rotating chamber 14, and a lifting groove 13 is provided in the middle of the bottom surface of the rotating chamber 14, which facilitates the lowering space of the lifting platform 20.
[0020] In this invention, a drive motor 17 is installed in the power chamber 15, which provides driving force to the rotating rod 18. The drive end of the drive motor 17 is connected to the rotating rod 18 via a coupling, which drives the first gear 19 to rotate. The other end of the rotating rod 18 passes through the rotating chamber 14, and the first gear 19 is fixedly connected to the middle section of the rotating rod 18, which meshes with the second rack 28 to drive the lifting platform 20 to rise and fall. A T-shaped lifting platform 20 is slidably installed in the rotating chamber 14, which facilitates the installation of the first rack 24. Multiple equidistant first racks 24 are installed on the outside of the lifting platform 20, which facilitates the driving of the second gear 27. The lower end of the lifting platform 20 is equipped with a second rack 28. The multiple first racks 24 correspond to the clamping chambers 16 opened on the outside of the rotating chamber 14. The first racks 24 mesh with the second gear 27, and the first gear 19 meshes with the second rack 28. The lower end of the second rack 28 is placed in the lifting groove 13. A fixed platform 21 is provided in the clamping chamber 16 to facilitate the fixing of the lens barrel. The lower end of the fixed platform 21 is provided with an installation groove 23 to facilitate the installation of the first connecting rod 25 and the second connecting rod 26. The first connecting rod 25 and the second connecting rod 26 are hinged from top to bottom in the installation groove 23 to facilitate the effective fixing of the fixed platform 21. The second gear 27 facilitates the transmission of the driving force of the lifting platform 20 to the fixed platform 21 through the meshing transmission of the first gear 19, so that the fixed platform 21 can move up to clamp or move down to release. The other ends of the first connecting rod 25 and the second connecting rod 26 are hinged to the communicating surface between the clamping chamber 16 and the rotating chamber 14. The other end of the second connecting rod 26 is equipped with the second gear 27. The upper ends of the multiple fixed platforms 21 are equipped with second rubber blocks 22 to prevent the fixed platforms 21 from rigidly colliding with the lens barrel.
[0021] Working Principle: When using this invention, place the product in a relatively horizontal position, then power on the device. Place the bottom end of the lens barrel in the rotating platform 12, and start the drive motor 17 installed in the power chamber 15. The drive motor 17 drives the rotating rod 18 to rotate, which in turn drives the first gear 19 to rotate. The first gear 19 meshes with the second rack 28, driving the lifting platform 20, which is slidably installed in the rotating chamber 14 and the lifting groove 13, to move upward. The upward movement of the lifting platform 20 drives the first rack 24 to move upward. The first rack 24 drives the second gear 27, which is installed in the mounting groove 23, to rotate, thereby driving the second connecting rod 26 to move upward. The upward movement of the second connecting rod 26 drives the first connecting rod 25 to move upward. At this time, the upward movement of the first connecting rod 25 and the second connecting rod 26 will drive the sliding installation in the clamping chamber 16 to move upward. The fixed platform 21 moves upward and towards the axis of the rotating platform 12. The lens barrel is clamped by the second rubber block 22 installed on the upper end of the fixed platform 21. Then, the stepper motor 11 installed in the drive chamber 10 in the base 1 is started. The stepper motor 11 drives the rotating platform 12 to rotate. The rotating platform 12 drives the lens barrel to rotate to a suitable position. At the same time, the servo motor installed on the upper end of the support platform 2 is started. The servo motor drives the lead screw 4. The lead screw 4 drives the clamping platform 5 to move to a suitable clamping position. At the same time, the sliding groove 3 opened in the support platform 2 limits the clamping platform 5 to prevent it from rotating. When the clamping platform 5 moves upward or downward, the lens barrel body causes the first rubber block 8 to drive the clamping block 7 to squeeze the spring 9 and move the clamping block 7 into the displacement groove 6, thus reaching a suitable clamping position. After the clamping and positioning is completed, subsequent work can be carried out.
[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A positioning base for a lens barrel tool, comprising a base (1), characterized in that: The base (1) has support platforms (2) installed at both ends of its top surface. Each support platform (2) has a vertically opening sliding groove (3). The two support platforms (2) are vertically rotatably connected to each other by a lead screw (4). A guide rod is installed on one side of the lead screw (4), and a servo motor is connected to the upper end of the lead screw (4) through a coupling. The servo motor is installed on the upper end of the support platform (2). The lead screw (4) is threadedly connected to a clamping platform (5). The clamping platform (5) is provided with a guide hole in cooperation with the guide rod. The guide rod passes through the guide hole. A fixing component is installed inside the base (1). A drive chamber (10) is provided inside the base (1).
2. The positioning base for a lens barrel tool according to claim 1, characterized in that: Displacement grooves (6) are provided on the adjacent surfaces of the two clamping platforms (5). A clamping block (7) with a T-shaped cross-section is slidably connected in the displacement groove (6). A first rubber block (8) is installed on the adjacent surfaces of the two clamping blocks (7). A spring (9) is sleeved on the outer side of the far end of the two clamping blocks (7). One end of the spring (9) abuts against the other end of the clamping block (7), and the other end of the spring (9) abuts against one end of the clamping platform (5).
3. The positioning base for a lens barrel tool according to claim 1, characterized in that: The fixing assembly includes a stepper motor (11) installed at the bottom of the drive chamber (10). A rotating platform (12) is fixed to the outside of the drive end of the stepper motor (11). The upper end of the rotating platform (12) penetrates the top surface of the base (1). A rotating chamber (14) and a power chamber (15) are provided inside the rotating platform (12). Multiple equidistant clamping chambers (16) are provided on the outside of the rotating chamber (14). The clamping chambers (16) are connected to the rotating chamber (14). A lifting groove (13) is provided in the middle of the bottom surface of the rotating chamber (14).
4. A positioning base for a lens barrel tool according to claim 3, characterized in that: A drive motor (17) is installed in the power chamber (15). The drive end of the drive motor (17) is connected to a rotating rod (18) through a coupling. The other end of the rotating rod (18) passes through the rotating chamber (14). A first gear (19) is fixedly connected to the middle section of the rotating rod (18). A lifting platform (20) with a T-shaped cross-section is slidably installed in the rotating chamber (14). Multiple equidistant first racks (24) are installed on the outside of the lifting platform (20). A second rack (28) is installed at the lower end of the lifting platform (20). The multiple first racks (24) correspond to the clamping chamber (16) opened on the outside of the rotating chamber (14). The first racks (24) mesh with the second gear (27) for transmission. The first gear (19) meshes with the second rack (28) for transmission. The lower end of the second rack (28) is placed in the lifting groove (13).
5. A lens barrel tooling positioning seat according to claim 4, characterized in that: The clamping chamber (16) is provided with a fixed platform (21), and the lower end of the fixed platform (21) is provided with an installation groove (23). The first connecting rod (25) and the second connecting rod (26) are movably hinged from top to bottom in the installation groove (23), and the other ends of the first connecting rod (25) and the second connecting rod (26) are hinged on the communication surface between the clamping chamber (16) and the rotating chamber (14).
6. A positioning base for a lens barrel tool according to claim 5, characterized in that: The other end of the second connecting rod (26) is equipped with a second gear (27), and a second rubber block (22) is installed on the upper end of each of the plurality of fixed platforms (21).