Automatic watchband contact finger assembling mechanism

Abstract

The utility model discloses an automatic watchband contact finger assembling mechanism, which is characterized in that a feeding gear assembly is arranged above a watchband and is meshed with a watchband chain link hole, and the feeding gear assembly pushes the watchband to advance by a chain link interval when rotating each time; the contact finger conveying assembly comprises a vibration disc and a contact finger guiding strip connected with a discharging port of the vibration disc, the tail end of the contact finger guiding strip is provided with a driven gear used for receiving and bearing the contact finger, and the driven gear rotates to enable the contact finger to reach a riveting station; the riveting execution assembly comprises a lifting mechanism, a gear seat is arranged on the lifting mechanism, the driven gear is fixed on the lifting mechanism through the gear seat, and the lifting mechanism jacks the gear seat to enable the contact finger to be buckled with the watchband; and the riveting punch piece applies a downward force to the contact finger, so that the contact finger and the watchband are pressed tightly. Through the automatic feeding and riveting process, the single piece assembling time is greatly shortened, compared with traditional manual and semi-mechanical assembling, the productivity is greatly improved, and the assembling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of power equipment manufacturing, and in particular to an automated assembly mechanism for watch strap fingers. Background Technology

[0002] In power equipment manufacturing, the assembly of watch strap contacts is a critical step. Traditional assembly methods are mainly manual or semi-mechanized, which have many drawbacks. Regarding assembly efficiency, in manual operation, workers need to use simple jigs to position each contact individually, resulting in long assembly times for each piece. Even with semi-mechanized assistance and manual riveting using a punch press, manual loading and unloading still leads to long measured cycle times and overall low efficiency. In terms of assembly quality, relying on workers' visual alignment of the contacts and watch strap holes makes it difficult to guarantee positioning accuracy. Furthermore, uneven riveting force during manual punching severely affects product quality and the performance stability of the power equipment. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of low efficiency and uncontrollable quality in the assembly of watch strap fingers in the prior art, and to provide an automated watch strap finger assembly mechanism that can achieve automated and high-precision assembly.

[0004] This utility model provides an automated assembly mechanism for watch strap fingers, comprising: a base with a planar mounting area; a watch strap feeding mechanism including a feeding gear assembly, which is disposed above the watch strap component and meshes with the link hole of the watch strap component, wherein the feeding gear assembly pushes the watch strap component forward by one link distance with each rotation; a finger conveying assembly including a vibratory feeder and a finger guide bar connected to the outlet of the vibratory feeder, wherein the end of the finger guide bar is provided with a driven gear for receiving and carrying the finger component, wherein the driven gear rotates to bring the finger component to the riveting position; and a riveting execution assembly including: a lifting mechanism, wherein the lifting mechanism is provided with the gear seat, the driven gear is fixed to the lifting mechanism through the gear seat, the lifting mechanism lifts the gear seat to make the finger component fasten with the watch strap component; and a riveting punch applies a downward force to the finger component to press the finger component and the watch strap component together.

[0005] Furthermore, the riveting punch includes a first riveting punch orthogonally distributed and a second riveting punch at an inclined angle, wherein the punching direction of the first riveting punch is coaxial with the lifting direction of the lifting mechanism.

[0006] Furthermore, the movement sequence of the first riveting punch and the second riveting punch satisfies the following: the first riveting punch first applies a vertical preload to the contact finger; the second riveting punch then applies a final riveting force at an inclined angle.

[0007] Furthermore, it also includes a power transmission assembly, which includes a motor body, a driving gear connected by a coupling, and a driven gear meshing with the driving gear.

[0008] Furthermore, the power transmission assembly includes a bearing housing for supporting the shaft of the driven gear, and the inner ring of the bearing housing is connected to the shaft of the driven gear.

[0009] Furthermore, a gear baffle is installed on the gear seat; the gear baffle is located on one side of the driven gear and is used to restrict the axial movement of the driven gear.

[0010] Furthermore, a bearing spacer is provided between the driving gear and the driven gear; the bearing spacer is sleeved on the shaft of the driven gear and located between the driving gear and the driven gear.

[0011] Furthermore, the lifting mechanism includes: at least two vertical guide columns fixed on the base; and a guide sleeve that slides with the guide columns, the guide sleeve being fixed to the bottom of the lifting mechanism.

[0012] Furthermore, the feeding gear assembly includes: a gear body whose teeth mesh with the link holes of the watch strap; a gear shaft mounted on the base via a bearing body; a ratchet mechanism coaxially connected to the gear shaft for intermittent indexing rotation; an elastic clamping wheel facing the gear body for maintaining the meshing state between the watch strap and the gear body; and a drive mechanism connected to the gear shaft via a servo motor and a reducer for controlling a fixed angle for each rotation.

[0013] Furthermore, it also includes a detection and control component, which is mounted on the base. The detection and control component includes position sensors. The position sensors are distributed around the strap feeding mechanism and the lifting mechanism to detect the position of the strap component, the finger component, and the lifting position of the lifting mechanism. The detection and control component is electrically connected to the control system, and the control system adjusts the operating status of the equipment based on the information fed back by the detection and control component.

[0014] The above technical solution has the following beneficial effects:

[0015] This invention significantly shortens the assembly time per piece through automated feeding and riveting processes. Compared to traditional manual and semi-mechanized assembly, production capacity is greatly improved, with the equipment's UPH (upper capacity per hour) consistently reaching 1000 pieces / hour, thus enhancing assembly efficiency. Simultaneously, precise positioning and stable riveting force control ensure that the hole position deviation between the touch components and the watch strap components is kept within the required range for electrical equipment, and the riveting force remains stable near the standard value, improving product quality and the reliability of the electrical equipment, and guaranteeing assembly quality. Attached Figure Description

[0016] The disclosure of this utility model will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0017] Figure 1 This is an exploded view of an automated assembly mechanism for watch strap fingers in one embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the finger contact and the watch strap in one embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the automated assembly mechanism for watch strap touch fingers in one embodiment of this utility model.

[0020] Reference table for attached figures:

[0021] 1. Base; 2. Strap feeding mechanism; 21. Gear body; 3. Touch finger guide bar; 4. Lifting mechanism; 41. Vertical guide post; 42. Guide sleeve; 5. Riveting punch; 51. First riveting punch; 52. Second riveting punch; 6. Power transmission assembly; 61. Motor body; 62. Motor base; 63. Coupling; 64. Drive gear; 65. Driven gear; 66. Gear seat; 67. Bearing seat; 68. Gear baffle; 69. Bearing spacer; 610. Bearing body; 7. Strap component; 8. Touch finger component. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0023] It is readily understood that, based on the technical solution of this utility model, various structural and implementation methods can be interchanged by those skilled in the art without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meanings of the above-mentioned components within this utility model according to the specific circumstances.

[0026] In some embodiments of this utility model, the following components are included: a base 1 with a planar mounting area; a strap feeding mechanism 2 including a feeding gear assembly, which is disposed above the strap 7 and meshes with the link hole of the strap 7, and the feeding gear assembly pushes the strap 7 forward by one link distance with each rotation; a finger conveying assembly including a vibratory feeder and a finger guide bar 3 connected to the outlet of the vibratory feeder, the end of the finger guide bar 3 being provided with a passive gear 65 for receiving and carrying the finger, the passive gear 65 rotating to bring the finger 8 to the riveting position; and a riveting execution assembly including: a lifting mechanism 4, which is provided with a gear seat 66, the passive gear 65 being fixed to the lifting mechanism 4 through the gear seat 66, the lifting mechanism 4 lifting the gear seat 66 to make the finger 8 engage with the strap 7; and a riveting punch 5 applying a downward force to the finger 8 to press the finger 8 and the strap 7 together.

[0027] Specifically, the base 1 provides an installation platform for all components, and the strap feeding mechanism 2, the finger conveying assembly, the riveting execution assembly, and the power transmission assembly 6 work together. The strap feeding mechanism 2 provides precise feeding, the finger conveying assembly automatically transfers the finger pieces 8, the power transmission assembly 6 drives the driven gear 65, the lifting mechanism 4 achieves the engagement of the finger pieces 8 with the strap pieces 7, and the riveting punch 5 completes the final clamping, forming a complete automated assembly process. Technical effect: It realizes the full automation of the strap finger assembly, completely changing the situation of low efficiency and unstable quality of traditional manual or semi-mechanized assembly.

[0028] Overall Structure and Working Principle: The automated watch strap finger assembly mechanism of this utility model is based on a base 1. The flat mounting area on the base 1 provides a stable mounting foundation for other components. In an actual production workshop, the equipment mechanism is placed on a workbench. The flat mounting area can be fixed with bolts or other means to ensure the stability of each component after installation, avoiding component displacement caused by equipment vibration, and laying the foundation for precise assembly.

[0029] The feeding gear assembly of the watch strap feeding mechanism 2 meshes with the link hole of the watch strap component 7, achieving precise feeding of the watch strap component 7 through gear rotation. When the feeding gear assembly operates, its teeth closely match the link hole of the watch strap component 7, and each rotation propels the watch strap component 7 forward by one link pitch. For example, when producing watch strap components 7 with a standard link pitch of 8mm, the feeding gear assembly can precisely push the watch strap component 7 forward by 8mm with each rotation, achieving stable and precise feeding. Compared with traditional manual feeding, this greatly improves feeding efficiency and accuracy.

[0030] In the finger conveying assembly, a vibratory feeder arranges the disordered finger pieces 8 into an orderly manner, and then conveys them to the driven gear 65 via the finger guide bar 3. The driven gear 65, acting as the carrier and transfer component for the finger pieces 8, rotates under the drive of the power transmission assembly 6, accurately transporting the finger pieces 8 to the riveting station. In actual operation, the vibratory feeder organizes and conveys the finger pieces 8 to the guide bar at a speed of approximately 120 pieces per minute. Each rotation of the driven gear 65 accurately delivers one finger piece 8 to the riveting position, completely replacing manual handling of the finger pieces 8 and significantly improving assembly efficiency.

[0031] The lifting mechanism 4 of the riveting actuator sends the finger 8 on the driven gear 65 to the position where it engages with the watch strap 7 via the lifting gear seat 66. Then the riveting punch 5 applies pressure to the finger 8, so that the finger 8 and the watch strap 7 are tightly pressed together to complete the riveting.

[0032] In some embodiments of this utility model, the riveting punch 5 includes a first riveting punch 51 orthogonally distributed and a second riveting punch 52 at an inclined angle, wherein the punching direction of the first riveting punch 51 is coaxial with the lifting direction of the lifting mechanism 4.

[0033] Specifically, the riveting punch 5 includes an orthogonally distributed first riveting punch 51 and an inclined second riveting punch 52, wherein the punching direction of the first riveting punch 51 is coaxial with the lifting direction of the lifting mechanism 4. During the fastening process between the finger piece 8 and the strap piece 7, after the lifting mechanism 4 lifts the finger piece 8 to the designated position, the first riveting punch 51 applies pressure to the finger piece 8 along the coaxial direction. This ensures that the finger piece 8 is accurately positioned in the vertical direction and effectively controls the deviation between the finger piece 8 and the hole position of the strap piece 7.

[0034] In some embodiments of this utility model, the movement sequence of the first riveting punch 51 and the second riveting punch 52 satisfies the following: the first riveting punch 51 first applies a vertical preload to the finger contact 8; the second riveting punch 52 then applies a final riveting force at an inclined angle.

[0035] Specifically, the first riveting punch 51 applies a vertical preload to the contact finger 8, initially fixing it to the corresponding position on the strap 7. Then, the second riveting punch 52 applies a final riveting force at an angle, further strengthening the connection between the contact finger 8 and the strap 7. This step-by-step riveting sequence design achieves gradual tightening of the contact finger 8. Technical effect: Significantly enhances the connection strength between the contact finger 8 and the strap 7. Testing shows that this riveting method increases the connection strength by approximately 25%, effectively preventing the contact finger 8 from loosening during power equipment operation and ensuring stable and reliable equipment performance.

[0036] In some embodiments of this utility model, a power transmission assembly is also included. The power transmission assembly 6 includes a motor body 61, a drive gear 64 connected by a coupling 63, and a driven gear 65 meshing with the drive gear 64.

[0037] Specifically, in the power transmission assembly 6, the motor body 61 is mounted on the motor base 62. The motor body 61 drives the driving gear 64 to rotate via the coupling 63. The driving gear 64 meshes with the driven gear 65, transmitting power to the driven gear 65, causing the driven gear 65 to rotate. This, in turn, drives the driven gear 65 of the finger conveying assembly to transport the finger piece 8 to the riveting station, while simultaneously providing power to other components requiring power. Technical benefits: It provides stable and reliable power transmission. The gear transmission method has high transmission efficiency, ensuring the stable operation of the entire mechanism over a long period. In actual operation, the equipment failure rate is significantly reduced. Compared with traditional power transmission methods, the maintenance cycle is extended by more than 30%, effectively reducing equipment maintenance costs.

[0038] In some embodiments of this utility model, the power transmission assembly 6 includes a bearing seat 67 for supporting the shaft of the driven gear 65, and the inner ring of the bearing body 610 is connected to the shaft of the driven gear 65.

[0039] Specifically, the bearing housing 610 installed within the bearing seat 67 has its inner ring tightly fitted with the shaft of the driven gear 65, providing support for the shaft. During the rotation of the driven gear 65, the bearing housing 610 reduces friction between the shaft and other components, enabling smooth rotation of the shaft. Technical benefits: Significantly reduces wear on the shaft of the driven gear 65, effectively extends the service life of the driven gear 65, ensures the long-term stable operation of the power transmission assembly 6, and reduces equipment failures caused by component wear.

[0040] In some embodiments of this utility model, a gear baffle 68 is installed on the gear seat 66; the gear baffle 68 is located on one side of the driven gear 65 and is used to restrict the axial movement of the driven gear 65.

[0041] Specifically, a gear baffle 68 is mounted on the gear seat 66, located on one side of the driven gear 65. When the driven gear 65 rotates, the gear baffle 68 restricts its axial movement, ensuring that the driven gear 65 rotates stably on a predetermined track and maintaining the accuracy of the gear transmission. Technical effect: This prevents axial movement of the gear during transmission, ensuring smooth gear transmission and thus ensuring the stability and reliability of power transmission. This effectively guarantees the motion accuracy of the riveting actuator, further improving assembly quality and reducing assembly defects caused by gear transmission errors.

[0042] In some embodiments of this invention, a bearing spacer 69 is provided between the driving gear 64 and the driven gear 65; the bearing spacer 69 is sleeved on the shaft of the driven gear 65 and located between the driving gear 64 and the driven gear 65. During gear transmission, the bearing spacer 69 reduces direct friction and wear between the driving gear 64 and the driven gear 65, thereby reducing energy loss.

[0043] In some embodiments of this utility model, the lifting mechanism 4 includes: at least two vertical guide columns 41 fixed on the base 1; and a guide sleeve 42 that slides with the guide columns, the guide sleeve 42 being fixed to the bottom of the lifting mechanism 4. Specifically, the vertical guide columns 41 of the lifting mechanism 4 are fixed to the base 1, and the guide sleeve 42 slides with the guide columns and is fixed to the bottom of the lifting mechanism 4. When the lifting drive mechanism is working, the guide sleeve 42 slides up and down along the guide columns, providing precise guidance for the movement of the lifting mechanism 4, enabling the lifting mechanism 4 to accurately lift the gear seat 66 and deliver the contact finger 8 to the riveting station.

[0044] Technical effect: Ensures high precision in the movement of the lifting mechanism 4. In the actual lifting process, the error of the finger piece 8 reaching the riveting position can be controlled within a very small range, ensuring the precise engagement of the finger piece 8 and the watch strap piece 7, improving the accuracy and stability of assembly, and reducing assembly errors caused by lifting errors.

[0045] In some embodiments of this utility model, the feeding gear assembly includes: a gear body 21, the teeth of which mesh with the link holes of the watch strap 7; a gear shaft, mounted on the base 1 via a bearing body 610; a ratchet mechanism, coaxially connected to the gear shaft, for intermittent indexing rotation; an elastic clamping wheel, facing the gear body 21, for maintaining the meshing state between the watch strap 7 and the gear body 21; and a drive mechanism, connected to the gear shaft via a servo motor and a reducer, for controlling a fixed angle for each rotation. Working principle: In the feeding gear assembly, the teeth of the gear body 21 mesh with the link holes of the watch strap 7, and the gear shaft is mounted on the base 1 via a bearing body 610 for rotational support. The ratchet mechanism is coaxially connected to the gear shaft, and under the control of the cam divider by the drive mechanism, it achieves intermittent indexing rotation of the gear shaft; the elastic clamping wheel, facing the gear body 21, always maintains a clamping force on the watch strap 7, ensuring a tight meshing between the watch strap 7 and the gear body 21. Technical benefits: It enables precise intermittent feeding of watch strap component 7, reducing feeding error by approximately 55% compared to traditional feeding methods. Stable and accurate feeding ensures the continuity and consistency of the assembly process, improves production efficiency, and reduces waste of watch strap component 7 and assembly rework caused by inaccurate feeding.

[0046] In some embodiments of this utility model, a detection and control component is also included. This component is installed on the base 1. The detection and control component includes a position sensor. The position sensor is distributed around the strap feeding mechanism 2 and the lifting mechanism 4, and is used to detect the position of the strap component 7, the finger component 8, and the lifting position of the lifting mechanism 4. The detection and control component is electrically connected to the control system, and the control system adjusts the operating status of the equipment based on the information fed back by the detection and control component.

[0047] Specifically, position sensors of the detection and control component are distributed around the strap feeding mechanism 2 and the lifting mechanism 4 to detect the positions of the strap component 7, the finger component 8, and the lifting position of the lifting mechanism 4 in real time. When a positional deviation is detected, the position sensors feed the information back to the control system. The control system then adjusts the equipment's operating status based on the feedback, such as adjusting the rotation angle of the feeding gear assembly and the lifting height of the lifting mechanism 4. Technical benefits: This enables real-time monitoring and precise control of the entire assembly process, effectively avoiding assembly defects caused by incorrect component placement. In actual production, the product qualification rate is increased to 99.95%, significantly improving production efficiency and reducing scrap rate and production costs.

[0048] This invention significantly shortens the assembly time for a single part through automated feeding and riveting processes. Compared with traditional manual and semi-mechanized assembly, it greatly increases production capacity and improves assembly efficiency. Simultaneously, precise positioning and stable riveting force control ensure that the hole deviation between the finger component 8 and the strap component 7 is kept within the requirements of the power equipment, and the riveting force remains stable near the standard value, improving product quality and the performance reliability of the power equipment, and guaranteeing assembly quality.

[0049] The above are merely the principles and preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of this utility model, and these modifications should also be considered within the scope of protection of this utility model.

Claims

1. An automated assembly mechanism for watch strap fingers, characterized in that, include: The base has a flat mounting area; The watch strap feeding mechanism includes a feeding gear assembly, which is disposed above the watch strap and meshes with the link hole of the watch strap. Each rotation of the feeding gear assembly pushes the watch strap forward by one link distance. The finger conveying assembly includes a vibratory feeder and a finger guide bar connected to the outlet of the vibratory feeder. The end of the finger guide bar is provided with a passive gear for receiving and carrying the finger. The rotation of the passive gear causes the finger to reach the riveting station. The riveting execution components include: A lifting mechanism is provided, wherein a gear seat is provided on the lifting mechanism, and the driven gear is fixed on the lifting mechanism through the gear seat. The lifting mechanism lifts the gear seat so that the finger contact is fastened to the watch strap. A riveting punch applies a downward force to the finger component, causing the finger component and the watch strap component to press together.

2. The automated assembly mechanism for watch strap fingers according to claim 1, characterized in that, The riveting punch includes a first riveting punch orthogonally distributed and a second riveting punch at an inclined angle, wherein the punching direction of the first riveting punch is coaxial with the lifting direction of the lifting mechanism.

3. The mechanism according to claim 2, characterized in that, The movement sequence of the first riveting punch and the second riveting punch satisfies the following: the first riveting punch first applies a vertical preload to the contact finger; the second riveting punch then applies a final riveting force at an inclined angle.

4. The automated assembly mechanism for watch strap fingers according to claim 1, characterized in that, It also includes a power transmission assembly, which includes a motor body, a drive gear connected by a coupling, and a driven gear meshing with the drive gear.

5. The automated assembly mechanism for watch strap fingers according to claim 4, characterized in that, The power transmission assembly includes a bearing housing for supporting the shaft of the driven gear, and the inner ring of the bearing housing is connected to the shaft of the driven gear.

6. The automated assembly mechanism for watch strap fingers according to claim 4, characterized in that, A gear baffle is installed on the gear seat; The gear baffle is located on one side of the driven gear and is used to restrict the axial movement of the driven gear.

7. The automated assembly mechanism for watch strap fingers according to claim 4, characterized in that, A bearing spacer is provided between the driving gear and the driven gear; The bearing spacer is fitted onto the shaft of the driven gear and is located between the driving gear and the driven gear.

8. The automated assembly mechanism for watch strap fingers according to claim 1, characterized in that, The lifting mechanism includes: At least two vertical guide posts are fixed to the base; A guide sleeve that slides in conjunction with the guide post is fixed to the bottom of the lifting mechanism.

9. The automated assembly mechanism for watch strap fingers according to claim 1, characterized in that, The feeding gear assembly includes: The gear body has teeth that mesh with the link holes of the watch strap component; The gear shaft is mounted on the base via a bearing housing; A ratchet mechanism, coaxially connected to the gear shaft, is used to achieve intermittent indexing rotation; An elastic clamping wheel is positioned opposite the gear body to maintain the meshing state between the watch strap and the gear body; The drive mechanism, connected to a servo motor, reducer, and gear shaft, is used to control a fixed angle for each rotation.

10. The automated assembly mechanism for watch strap fingers according to claim 1, characterized in that: It also includes a detection and control component, which is mounted on the base. The detection and control component includes position sensors. The position sensors are distributed around the strap feeding mechanism and the lifting mechanism to detect the position of the strap, the finger contact, and the lifting position of the lifting mechanism. The detection and control component is electrically connected to the control system, and the control system adjusts the equipment operating status based on the information fed back by the detection and control component.

Images