Assembling jig of watch heart rate lens
By designing a jig for assembling watch heart rate lenses, the positioning surfaces of the watch case and lens are matched with those of the watch case and heart rate lens. Combined with the elastic force of the elastic component, automatic positioning is achieved, which solves the problems of low assembly efficiency and misalignment, and realizes efficient and accurate lens installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN BEIYU ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-17
- Publication Date
- 2026-05-08
AI Technical Summary
The heart rate lenses in existing smartwatches are inefficient to assemble and are prone to misalignment or unevenness, making it difficult to achieve automated positioning.
A watch heart rate lens assembly fixture was designed, comprising an outer mold base, an inner mold core, a base plate, and elastic components. The fixture matches the watch case and the lens positioning surface with the watch case and the heart rate lens, respectively, and utilizes the elastic force of the elastic components to achieve automatic positioning and assembly.
It improves assembly efficiency, saves manpower, ensures the heart rate monitor lens is installed in place, and has a simple structure, reducing the difficulty of manual operation.
Smart Images

Figure CN224209833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of jig technology, and more particularly to an assembly jig for a watch heart rate lens. Background Technology
[0002] Currently, 90% of smartwatches on the market have heart rate monitoring functions, and most of the heart rate sensors are round. Because the watch case and heart rate sensor are mostly round, positioning them is difficult, requiring manual assembly, which is inefficient, involves many users, and can result in misaligned or uneven installation of the heart rate sensor. Summary of the Invention
[0003] The problem to be solved by this utility model is to provide an assembly fixture for a watch heart rate lens, which improves assembly efficiency and ensures that the heart rate lens is installed in place.
[0004] To solve the above technical problems, an assembly fixture for a watch heart rate lens provided by this utility model is provided, comprising an outer mold base, an inner mold core, a base plate, and an elastic element. The top of the outer mold base is provided with an annular limiting part, and the inner side of the annular limiting part is provided with a watch case positioning surface. The bottom of the outer mold base is provided with a movable cavity, and the top of the outer mold base is provided with a through hole communicating with the movable cavity. The inner mold core includes a base movably disposed in the movable cavity and matching the movable cavity, and a core column connected to the top of the base and matching the through hole. The core column is movably disposed in the through hole, and the top of the core column is provided with a lens positioning surface. The base plate is detachably connected to the bottom of the outer mold base, and the elastic element is disposed in the movable cavity and abuts against the base and the base plate.
[0005] Preferably, clearance notches are provided on both sides of the annular limiting part.
[0006] Preferably, the elastic element is a spring.
[0007] Preferably, the outer mold base and the base plate are connected by screws.
[0008] The beneficial effects of this utility model are as follows: This utility model provides an assembly fixture for a watch heart rate monitor lens. The watch case positioning surface and the lens positioning surface are respectively matched with the bottom of the watch case and the bottom of the heart rate monitor lens. During assembly, the watch case is first placed on the watch case positioning surface to position it, and then the heart rate monitor lens is placed on the lens positioning surface to position it. Downward pressure is then applied to the heart rate monitor lens, causing the inner mold core to compress the elastic element and move downwards until the heart rate monitor lens is assembled onto the watch case. After releasing the heart rate monitor lens, the inner mold core will reset under the elastic force of the elastic element, and the watch case will detach from the watch case positioning surface, allowing the product to be removed from the fixture. Its simple structure effectively improves assembly efficiency, saves manpower, and ensures the heart rate monitor lens is properly installed. Attached Figure Description
[0009] Figure 1 A schematic diagram illustrating the external structure of this utility model is provided.
[0010] Figure 2 A cross-sectional view of the present invention is shown.
[0011] Figure 3 An exploded view of the present invention is shown.
[0012] Figure 4 A schematic diagram illustrating the assembly structure of the watch case and heart rate lens of this utility model is shown.
[0013] The following are the reference numerals: 1. Outer mold base, 10. Annular limiting part, 100. 11. Watch case positioning surface, 12. Movable cavity, 13. Through hole, 2. Inner mold core, 20. Base, 21. Core pillar, 210. Lens positioning surface, 3. Base plate, 4. Elastic element, 5. Watch case, 6. Heart rate lens. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.
[0015] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.
[0016] refer to Figure 1-4 .
[0017] This utility model provides an assembly fixture for a watch heart rate lens, comprising an outer mold base 1, an inner mold core 2, a base plate 3, and an elastic element 4. The top of the outer mold base 1 is provided with an annular limiting part 10, and the inner side of the annular limiting part 10 is provided with a watch case positioning surface 11. The bottom of the outer mold base 1 is provided with a movable cavity 12, and the top of the outer mold base 1 is provided with a through hole 13 communicating with the movable cavity 12. The inner mold core 2 includes a base 20 movably disposed in and matched with the movable cavity 12, and a core column 21 connected to the top of the base 20 and matched with the through hole 13. The core column 21 is movably disposed in the through hole 13, and the top of the core column 21 is provided with a lens positioning surface 210. The base plate 3 is detachably connected to the bottom of the outer mold base 1, and the elastic element 4 is disposed in the movable cavity 12 and abuts against the base 20 and the base plate 3.
[0018] Its working principle is as follows: the case positioning surface 11 and the lens positioning surface 210 are respectively matched with the bottom shape of the case 5 and the bottom shape of the heart rate lens 6. During assembly, the case 5 is first placed on the case positioning surface 11 to position it, and then the heart rate lens 6 is placed on the lens positioning surface 210 to position it. Then, downward pressure is applied to the heart rate lens 6, and the inner mold core 2 compresses the elastic element 4 and moves downward until the heart rate lens 6 is assembled onto the case 5. After the heart rate lens 6 is released, the inner mold core 2 will reset under the elastic force of the elastic element 4, and the case 5 will detach from the case positioning surface 11, allowing the product to be removed from the fixture. Its simple structure can effectively improve assembly efficiency, save manpower, and ensure that the heart rate lens is installed in place.
[0019] Based on the above embodiments, the annular limiting part 10 is provided with clearance notches 100 on both sides of the opposite side. The clearance notches 100 can prevent the hand from being obstructed, making it convenient to take the watch case 5 out of the watch.
[0020] Based on the above embodiments, the elastic element 4 is a spring, which has the advantage of low cost.
[0021] Based on the above embodiments, the outer mold base 1 and the base plate 3 are connected by screws, which can achieve the fixation between the outer mold base 1 and the base plate 3.
[0022] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. An assembly fixture for a watch heart rate sensor, characterized in that, The device includes an outer mold base, an inner mold core, a base plate, and an elastic element. The top of the outer mold base is provided with an annular limiting part, and the inner side of the annular limiting part is provided with a case positioning surface. The bottom of the outer mold base is provided with a movable cavity, and the top of the outer mold base is provided with a through hole communicating with the movable cavity. The inner mold core includes a base movably disposed in and matching the movable cavity, and a core column connected to the top of the base and matching the through hole. The core column is movably disposed in the through hole, and the top of the core column is provided with a lens positioning surface. The base plate is detachably connected to the bottom of the outer mold base, and the elastic element is disposed in the movable cavity and abuts against the base and the base plate.
2. The assembly fixture for a watch heart rate lens according to claim 1, characterized in that, Both sides of the annular limiting part are provided with clearance openings.
3. The assembly fixture for a watch heart rate lens according to claim 2, characterized in that, The elastic element is a spring.
4. The assembly fixture for a watch heart rate lens according to claim 3, characterized in that, The outer mold base and the base plate are connected by screws.