A flowable watch back cover assembly carrier
By designing a transferable watch back cover assembly fixture, the assembly process is divided into two stations, front and back, which solves the problems of large space and long time in the assembly of smart watch back covers, and achieves simplification of the mechanism and improvement of production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU OLYTO AUTOMATION TECH CO LTD
- Filing Date
- 2023-05-05
- Publication Date
- 2026-05-29
AI Technical Summary
The assembly process for the back cover of a smartwatch is characterized by a large assembly space, complex mechanisms, and excessively long assembly time per workstation, resulting in low production efficiency.
Design a removable watch case back assembly loading fixture, including an upper mold, a lower mold, a guide post assembly, and a hook assembly. The watch body is fixed by a cam linkage mechanism, and the lower mold is positioned by contouring and fixed by a vacuum suction cup. The assembly process is divided into two stations: the front station completes the wiring connection, foam installation, and case closing, and the rear station performs pressure holding and screw tightening.
The assembly mechanism was simplified, the operation time of a single workstation was reduced, production efficiency was improved, and the complexity and cost of the mechanism were reduced.
Smart Images

Figure CN116352638B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of non-standard automation technology, and in particular to a reusable watch back cover assembly carrier. Background Technology
[0002] During the assembly process of assembling the back cover of a smartwatch into the watch body, there is a connecting ribbon cable between the back cover and the watch body. To connect the ribbon cable from the body to the back cover, the back cover needs to be opened at an angle with the body facing up and the back cover facing down to complete the installation of the ribbon cable. After the ribbon cable is installed, foam to press the ribbon cable buckle needs to be installed. Then, the watch band push block needs to be installed in the back cover. Then, the watch body and the back cover are closed and assembled together. After assembly, the screws need to be tightened in the opposite direction, with the body facing down and the back cover facing up.
[0003] The current assembly process for smartwatch back covers involves fixing both the watch body and back cover onto an assembly machine, then progressively completing steps such as ribbon cable connection, foam assembly, strap push-block assembly, closing the back cover and body, rotating it 180°, applying pressure, and tightening the screws. This assembly process is lengthy due to the numerous operations; furthermore, the reverse orientation of the ribbon cable connection and the final screw tightening requires rotating the watch body and back cover, along with their clamps, 180° to secure the screws. Therefore, the entire inversion mechanism requires significant space and is quite complex.
[0004] Therefore, those skilled in the art are dedicated to developing a transferable watch back cover assembly loading device to solve the problems of large assembly space and complex mechanisms in the process of assembling smart watch back covers into the watch body; at the same time, to solve the problem of long assembly time when the entire assembly is concentrated in a single workstation. Summary of the Invention
[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the assembly mechanism is large in space, complex in structure and costly, and the assembly time of a single workstation is too long during the process of assembling the back cover of a smartwatch into the main body.
[0006] To achieve the above objectives, the present invention provides a transferable watch case back assembly loading device, the loading device including an upper mold, a lower mold, a guide post assembly, and a hook assembly. The upper mold and the lower mold are independent of each other. The upper mold is configured to fix the shape of the watch body through a cam linkage mechanism. The lower mold is configured to use contour positioning of the watch case back and fix it with the aid of a vacuum suction cup. The upper mold and the lower mold are configured to achieve precise positioning through the guide post assembly and be detachably fixed by the hook assembly. The loading device is configured to be manually rotated and transferred to a rear station after being taken out from a front station. The front station is configured to connect the ribbon cable, install the compression foam, assemble the watch strap pusher, and close the watch body and the watch case back. The rear station is configured to maintain pressure on the watch body and the watch case back and tighten the screws.
[0007] Furthermore, the upper mold includes an upper mold body, an upper mold base plate, and a compression spring, and the lower mold includes a lower mold body. One side of the upper mold body has a contoured surface for supporting the watch body, and the other side is connected to the upper mold base plate through the compression spring. One side of the lower mold body has a contoured surface for supporting the watch back cover, and the other side has a through hole at the position corresponding to the screw of the watch back cover.
[0008] Furthermore, the cam linkage mechanism includes a cam, a cam handle, a pair of jaws, and a pair of jaw springs. The jaw heads of the pair of jaws are arranged facing the outer periphery of the watch body. Each of the pair of jaws is connected to the side wall of the upper mold body through the corresponding jaw spring. The cam is pivotally disposed at the center of the upper mold body. One end of the cam handle is connected to the cam, and the other end passes through a hole opened on the side of the upper mold body and is configured to be operated to control the rotation of the cam, thereby pushing the pair of jaws to open or clamp.
[0009] Furthermore, the hook assembly includes an upper mold hook and a lower mold hook. The lower mold hook is fixedly mounted on the lower mold body, and the upper mold hook is connected to the upper mold base plate via a hook pivot. A hook spring is provided between the upper mold hook and the downwardly extending side wall of the upper mold base plate. When the upper mold base plate is pressed down, the upper mold hook and the lower mold hook hook hook together. The hook spring applies elastic force, making it difficult for the two to disengage.
[0010] Furthermore, the guide post assembly includes a guide sleeve and a guide post. The guide sleeve is disposed on the lower mold body, and the guide post is disposed on the upper mold base plate and passes through the upper mold body. The guide sleeve and the guide post slide together to achieve precise positioning of the upper mold and the lower mold.
[0011] Furthermore, the lower mold body has a through hole at its center for the vacuum suction cup to communicate with.
[0012] Furthermore, the front station includes an upper mold fixing base, a lower mold fixing base, a rotating mechanism, a vacuum suction cup, and a vacuum suction connector. The upper mold fixing base is connected to the lower mold fixing base through the rotating mechanism. The upper mold is fixed on the upper mold fixing base, and the lower mold is fixed on the lower mold fixing base. The vacuum suction cup is connected to the through hole in the center of the lower mold body and is connected to the vacuum suction connector through the through hole in the center of the lower mold fixing base. The vacuum suction connector is externally connected to a vacuum pumping device.
[0013] Furthermore, the upper mold and the lower mold are arranged opposite to each other, and the rotating mechanism is configured to make the watch body and the watch back cover in an inclined state or in a closed state.
[0014] Furthermore, when the watch body and the watch back cover are in an inclined state, it is beneficial to connect the ribbon cable, install the compression foam, and assemble the watch strap push block. When the watch body and the watch back cover are in a closed state, the upper mold base plate is pressed down, so that the upper mold hook and the lower mold hook are hooked together.
[0015] Furthermore, the rear station includes a pressure-holding screw bracket, a pressure-holding cover plate, a pressure-holding push block, a pressure-holding spring, and a pressure-holding motor. The assembly loading device is configured to be placed on the pressure-holding screw bracket, cover the pressure-holding cover plate on the lower mold body, and then lock the pressure-holding cover plate to the pressure-holding screw bracket. The pressure-holding motor is configured to apply pressure to the pressure-holding push block through the pressure-holding spring. The pressure-holding cover plate has a screw-holding through hole, and the position of the screw-holding through hole corresponds to the position of the through hole on the lower mold body.
[0016] The beneficial effects of this invention are as follows:
[0017] 1. The present invention does not require a complex flipping mechanism in the switching process between front-side operations such as cable connection and foam installation and back-side screw fixing operations.
[0018] 2. This invention can split the entire front and back operations into two different workstations, reducing the excessively long operation time of a single workstation.
[0019] 3. This invention reduces the complexity of the mechanism that was originally assembled entirely at a single station, and reduces the excessively long operation time of a single station, thereby improving the production efficiency of the entire production line.
[0020] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description
[0021] Figure 1This is a schematic diagram of the structure of the upper mold with the watch body according to a preferred embodiment of the present invention;
[0022] Figure 2 This is a schematic diagram of the structure of the lower mold with a watch back cover according to a preferred embodiment of the present invention;
[0023] Figure 3 This is a schematic diagram of the overall structure of a transferable assembly loading device according to a preferred embodiment of the present invention;
[0024] Figure 4 This is a bottom view of the upper mold (clamping structure part) of a preferred embodiment of the present invention;
[0025] Figure 5 This is a schematic diagram of the state in which the upper mold's jaws clamp the watch body according to a preferred embodiment of the present invention;
[0026] Figure 6 This is a schematic diagram of the assembly state of the watch back cover and watch body before they are closed, according to a preferred embodiment of the present invention.
[0027] Figure 7 This is a schematic diagram of the temporary pressure-holding state after the watch back cover and watch body are closed, according to a preferred embodiment of the present invention;
[0028] Figure 8 This is a schematic diagram of the pressure-holding locking screw state according to a preferred embodiment of the present invention.
[0029] Among them, 10-upper mold, 11-cam, 12-clamp, 13-cam handle, 14-clamp spring, 15-upper mold base plate, 16-compression spring, 17-upper mold hook, 18-hook pivot, 19-hook spring, 20-upper mold body, 21-guide post, 30-lower mold, 31-lower mold body, 32-lower mold hook, 33-guide sleeve, 41-watch body, 42-watch back cover, 43-back cover screw, 51-ribbed cable, 52-compressing foam, 53-watch strap pusher, 61-upper mold fixing seat, 62-lower mold fixing seat, 63-rotation mechanism, 64-vacuum suction cup, 65-vacuum suction connector, 71-pressure holding screw bracket, 72-pressure holding cover plate, 73-pressure holding pusher, 74-pressure holding spring, 75-screw hole. Detailed Implementation
[0030] The preferred embodiments of the present invention are described below with reference to the accompanying drawings to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.
[0031] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and the present invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings.
[0032] Example
[0033] like Figure 1 As shown in Figure 3, this embodiment provides a transferable assembly loading device, which is divided into an upper mold 10 and a lower mold 30.
[0034] like Figure 1 , Figure 4 and Figure 5 As shown, the upper mold 10 is positioned using the inner cavity of the watch body 41, and the cam 11 is used to link a pair of left and right jaws 12 to fix the shape of the watch body 41.
[0035] The cam handle 13 controls the opening or closing of the jaws 12. The jaw spring 14 applies a spring force to clamp the jaws 12 onto the watch body 41.
[0036] like Figure 6 As shown in Figure 8, the upper mold 10 includes an upper mold body 20, an upper mold base plate 15, a compression spring 16, a guide post assembly, and a hook assembly. The compression spring 16 can press the watch body 41 and the watch back cover 42 together. The guide post assembly enables precise docking between the upper mold 10 and the lower mold 30. The hook assembly connects the upper mold 10 and the lower mold 30 into a whole. The lower mold 30 uses contour positioning of the watch back cover 42 and is fixed with a vacuum suction cup 64. This transferable assembly loading device can divide the entire assembly process into two stations. The front station mainly connects the ribbon cable 51, installs the compression foam 52, assembles the watch strap pusher 53, and closes the watch body 41 and the watch back cover 42. Then, the upper mold 10 and the lower mold 30 are assembled into a whole, removed from the front station, manually rotated, and transferred to the rear station. The rear station then maintains pressure on the watch body 41 and the watch back cover 42 and tightens the screws.
[0037] like Figure 6 As shown, before the watch back cover 42 and the watch body 41 are closed, the upper mold 10 and lower mold 30 of the transferable assembly loading device are tilted at 30° to assemble the ribbon cable 51, the compression foam 52 and the watch strap pusher 53.
[0038] The front station is equipped with an upper mold fixing seat 61, a lower mold fixing seat 62, and a rotating mechanism 63. The upper mold fixing seat 61 is connected to the lower mold fixing seat 62 through the rotating mechanism 63. The upper mold 10 is fixed on the upper mold fixing seat 61, and the lower mold 30 is fixed on the lower mold fixing seat 62. The vacuum suction cup 64 is connected to the hole at the bottom of the lower mold 30, and a vacuum is drawn through the vacuum suction connector 65.
[0039] like Figure 7 As shown, after the watch back cover 42 and the watch body 41 are closed, the transferable assembly is in a temporary pressure-holding state. At this time, the watch body 41 is on top and the watch back cover 42 is on the bottom.
[0040] like Figure 8 As shown, the transferable loading device is taken out from the front station, manually rotated 180° and transferred to the rear station, and is in the pressure-holding screw-locking state. At this time, the watch back cover 42 is on top and the watch body 41 is on the bottom.
[0041] The rear station is equipped with a pressure-holding screw bracket 71, a pressure-holding cover plate 72, a pressure-holding push block 73, a pressure-holding spring 74, and a pressure-holding motor. A transferable loading device is placed on the pressure-holding screw bracket 71, and the pressure-holding cover plate 72 is placed over the lower mold body 31. The pressure-holding cover plate 72 is then locked to the pressure-holding screw bracket 71. The pressure-holding motor applies pressure to the pressure-holding push block 73 via the pressure-holding spring 74; in this embodiment, the applied pressure is 30 kgf. The pressure-holding cover plate 72 has a screw-locking through hole 75, which, along with a through hole in the lower mold body 31, locks the rear cover screw 43.
[0042] like Figure 7 As shown, the hook assembly consists of an upper mold hook 17 and a lower mold hook 32. The lower mold hook 32 is fixedly mounted on the lower mold body 31. The upper mold hook 17 is connected to the upper mold base plate 15 through the hook pivot 18. When the upper mold base plate 15 is pressed down, the upper mold hook 17 and the lower mold hook 32 hook together. The hook spring 19 applies elastic force, making it difficult for the two to disengage.
[0043] like Figure 8 As shown, the guide post assembly consists of a guide sleeve 33 and a guide post 21. The guide sleeve 33 is located on the lower mold body 31, and the guide post 21 is located on the upper mold base plate 15 and passes through the upper mold body 20. The guide sleeve 33 and the guide post 21 slide together to achieve precise positioning of the upper mold 10 and the lower mold 30.
[0044] This embodiment has the following advantages:
[0045] 1. By rotating the cam handle to link the grippers, the grippers on both sides can be opened and closed simultaneously to clamp the product, which can be done quickly and easily by rotating the handle.
[0046] 2. During the assembly of the watch back cover and the watch body, a transferable assembly fixture is used to achieve the closing assembly, temporary pressure holding and transfer. During the transfer process, it can be manually reversed. The pressure holding and screw locking are carried out in two workstations, which simplifies the structure, reduces costs and reduces the time per station.
[0047] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A reusable watch back cover assembly carrier, characterized in that, The assembly includes an upper mold, a lower mold, a guide post assembly, and a hook assembly. The upper and lower molds are independent of each other. The upper mold is configured to fix the shape of the watch body through a cam linkage mechanism. The lower mold is configured to use contour positioning of the watch back cover and is fixed by a vacuum suction cup. The upper and lower molds are configured to achieve precise positioning through the guide post assembly and are detachably fixed by the hook assembly. The assembly is configured to be manually rotated and transferred to a rear station after being taken out from the front station. The front station is configured to connect the ribbon cable and install the compressed foam. The assembly of the watch strap pusher and the closing of the watch body and the watch back cover, the back station is configured to hold pressure on the watch body and the watch back cover and tighten the screws; the upper mold includes an upper mold body, an upper mold base plate and a compression spring, the lower mold includes a lower mold body, one side of the upper mold body has a contoured surface for supporting the watch body, and the other side is connected to the upper mold base plate through the compression spring, one side of the lower mold body has a contoured surface for supporting the watch back cover, and the other side has a through hole at the position corresponding to the screw of the watch back cover.
2. The reusable watch back cover assembly carrier as described in claim 1, characterized in that, The cam linkage mechanism includes a cam, a cam handle, a pair of jaws, and a pair of jaw springs. The jaw heads of the pair of jaws are arranged facing the outer periphery of the watch body. Each of the pair of jaws is connected to the side wall of the upper mold body through the corresponding jaw spring. The cam is pivotally disposed at the center of the upper mold body. One end of the cam handle is connected to the cam, and the other end passes through a hole opened on the side of the upper mold body and is configured to be operated to control the rotation of the cam, thereby pushing the pair of jaws to open or clamp.
3. The reusable watch back cover assembly carrier as described in claim 2, characterized in that, The hook assembly includes an upper mold hook and a lower mold hook. The lower mold hook is fixedly mounted on the lower mold body. The upper mold hook is connected to the upper mold base plate via a hook pivot. A hook spring is provided between the upper mold hook and the downwardly extending side wall of the upper mold base plate. When the upper mold base plate is pressed down, the upper mold hook and the lower mold hook hook hook together. The hook spring applies elastic force, making it difficult for the two to disengage.
4. The reusable watch back cover assembly carrier as described in claim 3, characterized in that, The guide post assembly includes a guide sleeve and a guide post. The guide sleeve is disposed on the lower mold body, and the guide post is disposed on the upper mold base plate and passes through the upper mold body. The guide sleeve and the guide post slide together to achieve precise positioning of the upper mold and the lower mold.
5. The reusable watch back cover assembly carrier as described in claim 4, characterized in that, The lower mold body has a through hole at its center for the vacuum suction cup to connect to.
6. The reusable watch back cover assembly carrier as described in claim 5, characterized in that, The front station includes an upper mold fixing base, a lower mold fixing base, a rotating mechanism, a vacuum suction cup, and a vacuum suction connector. The upper mold fixing base is connected to the lower mold fixing base through the rotating mechanism. The upper mold is fixed on the upper mold fixing base, and the lower mold is fixed on the lower mold fixing base. The vacuum suction cup is connected to the through hole in the center of the lower mold body and is connected to the vacuum suction connector through the through hole in the center of the lower mold fixing base. The vacuum suction connector is externally connected to a vacuum pump.
7. The reusable watch back cover assembly carrier as described in claim 6, characterized in that, The upper and lower molds are arranged opposite to each other, and the rotating mechanism is configured to make the watch body and the watch back cover either tilted or closed.
8. The reusable watch back cover assembly carrier as described in claim 7, characterized in that, When the watch body and the watch back cover are in an inclined state, it is convenient to connect the ribbon cable, install the compressed foam, and assemble the watch strap push block. When the watch body and the watch back cover are in the closed state, the upper mold base plate is pressed down, so that the upper mold hook and the lower mold hook are hooked together.
9. The reusable watch back cover assembly carrier as described in claim 8, characterized in that, The rear station includes a pressure-holding screw bracket, a pressure-holding cover plate, a pressure-holding push block, a pressure-holding spring, and a pressure-holding motor. The assembly loading device is configured to be placed on the pressure-holding screw bracket, cover the pressure-holding cover plate on the lower mold body, and then lock the pressure-holding cover plate to the pressure-holding screw bracket. The pressure-holding motor is configured to apply pressure to the pressure-holding push block through the pressure-holding spring. The pressure-holding cover plate has a screw-holding through hole, and the position of the screw-holding through hole corresponds to the position of the through hole on the lower mold body.