Watchband contact and manufacturing system and method thereof
By using a cold forging process to integrally form the baseband and contact fingers, and combining it with an automated manufacturing system, the problems of low efficiency, material waste, and difficulty in controlling precision in the production of watch strap contacts have been solved, achieving efficient, precise continuous production and highly consistent products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-22
- Publication Date
- 2026-04-07
AI Technical Summary
The current production of watch strap contacts suffers from problems such as low efficiency due to discrete production methods, serious waste of raw materials, difficulty in controlling processing accuracy, and poor assembly consistency.
The base strip and contact fingers are integrally formed using a cold forging process, and surface contact riveting is achieved through a complementary mating structure. Combined with an automated manufacturing system, continuous production is carried out, including a cold forging forming unit, an automatic assembly and riveting unit, and online inspection and sorting.
It improved material utilization, shortened processing cycles, enhanced production efficiency and product consistency, and reduced manufacturing costs and mold wear frequency.
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Figure CN121798367A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of contact processing technology in mechanical manufacturing, specifically to a watch strap contact and its manufacturing system and method. Background Technology
[0002] As a key component for current transmission and signal connection between the smart wearable device body and the watch band, the watch band contacts directly determine the charging efficiency and lifespan of the electronic device due to their processing precision, conductivity stability, and appearance quality. In existing manufacturing processes (such as the prior art with patent publication number CN117772917A), the main technical approach is "stamping combined with semi-automatic assembly." Specifically, this process requires multiple stamping processes on the stainless steel base band and copper contacts. The base band needs to be punched, trimmed, and shaped, while the contacts need to be rolled and shaped. Subsequently, in the assembly stage, the contacts are positioned using pre-drilled gripping holes on the base band, and with manual assistance in feeding and calibration, semi-automatic equipment is used to rivet and fix the contacts to the base band.
[0003] However, the aforementioned traditional stamping and semi-automated production methods have significant technical problems in practical applications.
[0004] First, the production mode is discontinuous and inefficient: the stamping process is complicated, and the step-by-step stamping combined with manual assembly leads to a discrete production process, a long single-piece processing cycle, and difficulty in achieving high-speed continuous production from roll to roll, which cannot meet the needs of large-scale mass production.
[0005] Secondly, there is serious waste of raw materials and difficulty in controlling precision: stamping requires the reservation of gripping holes and slotting holes and the removal of a large amount of scrap material, resulting in low material utilization. At the same time, the inherent metal springback characteristics of stamping make it difficult to accurately control dimensional tolerances. In addition, assembly relies on manual visual alignment, which easily leads to riveting deviations and affects the long-term reliability of the product.
[0006] In addition, the use of multiple independent stamping dies not only increases manufacturing costs, but also makes the cutting edges prone to wear and requires frequent maintenance, further increasing the burden on production and operation.
[0007] Therefore, how to simplify the processing steps, achieve continuous automated production, improve material utilization and processing accuracy are the technical problems that urgently need to be solved in the current watch strap contact manufacturing field. Summary of the Invention
[0008] The technical problem to be solved by the present invention is to provide a watch strap contact and its manufacturing system and method, which address the problems of low production efficiency, serious waste of raw materials due to stamping and semi-automation processes in the production of watch strap contacts, large influence of metal springback on processing accuracy, and poor consistency due to manual assembly.
[0009] The technical solution adopted by this invention to solve its technical problem is: A watch strap contact, comprising: The base strip is a cold-forged integral structure. The base strip has a connecting beam, and the connecting beam is provided with a first mating structure. The contact finger is a cold-forged one-piece structure. The contact finger has a connecting part, and the connecting part is provided with a second mating structure that is complementary to the first mating structure. The connecting part of the finger is attached to the connecting beam of the base band, the first mating structure and the second mating structure are interlocked and fixedly connected by riveting to form a surface contact.
[0010] Furthermore, the width tolerance of the connecting beam of the baseband is ±0.01mm; the surface of the baseband is a continuous and complete structure without gripping holes or slotted holes.
[0011] A system for manufacturing watch strap contacts, comprising: The cold forging unit includes a separate base strip cold forging die and a contact finger cold forging die, which are used to integrally form the base strip and the contact finger, respectively. An automatic assembly and riveting unit includes a feeding module, a transmission module, and a riveting module arranged in sequence. The transmission module is used to transport the baseband and contact fingers to the riveting station and to position the baseband and contact fingers. The riveting module is used to drive the actuator to adjust the relative position of the contact finger and the baseband after the baseband and contact finger are positioned, and then apply pressure to complete the riveting.
[0012] Furthermore, the automated assembly and riveting unit also includes: The detection and marking module is located downstream of the riveting module. It is used to detect the riveted products to obtain detection data and mark unqualified products based on the detection data. The material unloading and sorting module is located downstream of the detection and marking module. It is used to identify the markings and perform classification and collection actions on the products. The classification and collection actions include collecting qualified products or rejecting unqualified products.
[0013] Furthermore, the transmission module includes a conveying track, the front end of which includes a baseband conveying track for conveying the baseband and a touch finger conveying track for conveying the touch finger. The touch finger conveying track and the baseband conveying track converge at the riveting module.
[0014] Furthermore, the riveting module includes a hydraulic drive device, or a pneumatic drive device that combines pneumatic transmission and gear transmission.
[0015] Furthermore, it also includes a control system, which is communicatively connected to the transmission module, the riveting module, and the detection marking module, respectively. The control system is used to respond to product specification switching commands, call the corresponding preset production parameters, and adjust the pressure parameters of the riveting module based on the preset production parameters.
[0016] A method for manufacturing watch strap contacts, characterized by comprising the following steps: The baseband and contact finger are obtained, and both the baseband and contact finger are integrally formed by cold forging process; The control and transmission module delivers the baseband and contact finger to the riveting station and positions them; The control riveting module aligns the connecting part of the contact finger with the connecting beam of the baseband, and applies pressure to the aligned connecting part and the connecting beam, so that the two undergo plastic deformation through the preset complementary mating structure and form a surface contact riveting connection.
[0017] Further steps for acquiring the baseband and contact points include: Based on the base cavity of the split cold forging die, the metal sheet is cold forged to form a base with a connecting beam and edge positioning structure in one piece; Based on the finger cavity of the split cold forging die, the conductive metal raw material is cold forged to form a finger with a connecting part and a bevel structure in one piece.
[0018] Furthermore, following the step of applying pressure, the following steps are also included: Obtain the inspection data of the riveted product; Based on the test data, determine the quality grade of the product and mark the unqualified products; Based on the markings, the unloading and sorting module is controlled to perform classification and collection actions: if no marking is detected, the separation mechanism is controlled to cut and collect the product; if a marking is detected, the rejection mechanism is controlled to reject the product.
[0019] The beneficial effects of this invention include the following: 1. By adopting a cold forging process to integrally form the base strip and contact fingers, and setting complementary mating structures at the connection between the two, such as the combination of irregular plate shape and rectangular receiving cavity, a precision structural system with no punching waste and anti-springback is formed, which increases the material utilization rate to over 95%, solves the problems of serious raw material waste and difficulty in controlling dimensional accuracy, and significantly improves the structural strength and electrical conductivity stability of the product.
[0020] 2. The manufacturing system of this invention adopts a continuous "roll-to-roll" production mode, combined with dual-path automatic feeding of roll material and vibratory feeder, realizing full automation from loading to rewinding, shortening the processing cycle of a single product to 15-20 seconds, and increasing production capacity by 5-6 times. Simultaneously, the unloading module has compatibility with rewinding and rejection capabilities, meeting the material receiving requirements of high-speed production while also rejecting defective products online, ensuring the quality of outgoing goods.
[0021] 3. Through the precise guidance of the double-layer conveyor track and the drive device combining pneumatic transmission and gear transmission, the physical alignment of the contact finger and the baseband and constant pressure riveting are achieved, controlling the riveting deviation rate to ≤1%. In addition, a visual positioning screening device is introduced to perform full inspection of the riveted products, automatically screening qualified and unqualified products, effectively solving the problem of poor consistency in traditional manual assembly.
[0022] 4. By adopting a split-type cold forging die design, since cold forging is a plastic deformation rather than shearing, the die has no shearing edge, resulting in minimal wear and a service life of 100,000 to 150,000 sets, which is 2-3 times that of traditional stamping dies. In addition, the replaceable die core structure and parametric control significantly shorten the new product introduction cycle, that is, changeover only takes 3-5 minutes, reducing overall manufacturing costs. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the baseband structure in Example 1; Figure 2 This is a schematic diagram of the structure of the finger in Example 1; Figure 3 This is a schematic diagram of the structure of the watch strap contacts in Example 1; Figure 4 This is a schematic diagram of the automatic assembly and riveting unit in Example 1; Figure 5 for Figure 4 Enlarged view of point a in the middle; Figure 6 This is a schematic diagram of the material unloading and sorting module in Example 1; Figure 7 for Figure 6 Enlarged view of section b in the middle.
[0024] Reference numerals: 1. Baseband; 101. Positioning wing; 102. Connecting beam; 2. Contact finger; 201. Contact finger body; 202. Connecting part; 203. Chamfer structure; 3. Watchband contact; 4. Feeding module; 401. Discharge tray; 402. Vibrating plate; 5. Transmission module; 501. Baseband conveyor track; 502. Contact finger conveyor track; 6. Riveting module; 601. Drive device; 602. Riveting joint; 7. Detection and marking module; 701. Industrial camera; 702. Marking mechanism; 8. Unloading and sorting module; 801. Vision detector; 802. Vision detector display screen; 9. Separation mechanism; 10. Rejection mechanism; 11. Qualified product collection box; 12. Waste box; 13. Receiving tray; 14. Sensor. Detailed Implementation
[0025] To make the technical solutions, objectives, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention. Unless otherwise stated, the terms used herein have their common meanings in the art.
[0026] This invention discloses a watch strap contact and its manufacturing system and method. The watch strap contact includes a base band, contact fingers, and a riveting connection structure. The manufacturing system includes a cold forging unit and an automated assembly and riveting unit. Example 1
[0027] This embodiment provides a watch strap contact 3, which is formed by cold forging the base band 1 and the contact finger 2 respectively, and achieves high-strength surface contact riveting through a specific concave-convex mating structure.
[0028] like Figure 1 As shown, the aforementioned baseband 1 is a one-piece molded structure made of stainless steel sheet. The baseband 1 has an overall "I"-shaped sheet structure, which includes a first end, a middle mating part and a second end along its length.
[0029] Furthermore, the first and second ends are flat rectangular positioning wing pieces 101, which are used to cooperate with the mold during the automatic assembly process to provide a precise positioning reference, and also serve as a fixed support when the final product is embedded in the watch strap.
[0030] The intermediate mating part is located at the center of the base strip 1, serving as the positioning wing 101 connecting the two ends of the connecting beam 102. The connecting beam 102 is a cold-forged, irregularly shaped plate structure with specific notches on its sides, forming the first mating structure. The width tolerance of the connecting beam is ±0.01mm. This structure aims to provide multi-directional geometric restraint, preventing relative rotation or axial movement of the contact fingers 2 after assembly.
[0031] Furthermore, the baseband 1 is formed through a cold forging process, which includes three steps: substrate pretreatment, cold forging, and surface strengthening. Its surface is smooth, without the gripping holes and slots produced by stamping processes, and the processing generates no punching waste, increasing raw material utilization to over 95%.
[0032] like Figure 2 As shown, the aforementioned finger 2 is a one-piece molded structure made of conductive copper sheet. The finger 2 has a block-shaped three-dimensional structure, including the finger body 201, the connecting part 202, and the chamfered structure 203.
[0033] The finger body 201 is the central main part of the finger 2, roughly in the shape of a cuboid block, but its interior is hollowed out to form an arch-shaped three-dimensional structure. This structural design allows the finger body 201 to straddle the middle mating part of the baseband 1 like a "saddle".
[0034] The connecting part 202 is located on the bottom surface of the finger body 201, i.e., the side facing the baseband 1, and has a deep rectangular receiving cavity. The outline dimensions of this receiving cavity are precisely adapted to the middle mating part of the baseband 1, forming a second mating structure that complements the first mating structure. The two sides of the receiving cavity are formed by thickened metal sidewalls extending downward from the finger body 201, and these two sidewalls are the key deformation areas for riveting. In addition, at the front and rear end edges of the receiving cavity, there are downwardly protruding rectangular limiting blocks, which are used to abut against specific stepped surfaces of the baseband 1 to provide axial stopping.
[0035] Chamfered structures 203 are located at both ends of the contact finger body 201 and are tapered structures extending outwards. Their ends have rounded chamfers, and this structure is used for plugging and unplugging contact with the charging / data interface of electronic devices.
[0036] Furthermore, the second finger is formed through a cold forging process, specifically including two steps: raw material cutting and cold forging. Its internal metal grains are densified through plastic flow, optimizing electrical conductivity by 10%.
[0037] like Figure 3 As shown, the aforementioned riveting connection structure is formed at the junction of the base band 1 and the finger 2. Specifically, an "embedded wrapping" connection is adopted. The middle mating part of the base band 1 is completely embedded inside the receiving cavity at the bottom of the finger body 201, and the first mating structure and the second mating structure are interlocked. By applying pressure through the driving device 601, the riveting sidewalls on both sides of the receiving cavity of the finger 2 undergo plastic deformation, shrinking inward and tightly wrapping and pressing the middle mating part of the base band 1, thereby achieving surface contact fixation.
[0038] The aforementioned manufacturing system includes a cold forging unit and an automated assembly and riveting unit.
[0039] The cold forging unit includes a base strip cold forging die and a finger cold forging die. The base strip cold forging die has a base strip cavity, corresponding to the connecting beam 102 and edge positioning structure of the base strip 1. The finger cold forging die has a finger cavity, corresponding to the body, connecting part 202 and chamfer structure 203 of the finger 2.
[0040] Furthermore, the mold adopts a split, independent design, eliminating the need for later integration, and includes a replaceable mold core. The mold cavity accuracy is controlled within ±0.01mm. Since cold forging is a plastic deformation process rather than shearing, this cold forging mold has no shearing edge, resulting in minimal wear and a service life of 100,000 to 150,000 sets. The mold described in the aforementioned cold forging forming unit is manufactured according to the shape of the base strip 1 and the contact finger 2, which is existing technology and therefore will not be illustrated with accompanying drawings.
[0041] like Figures 4 to 7 As shown, the aforementioned automatic assembly and riveting unit is mounted on the housing, with casters at the bottom. This unit adopts a production mode of "roll material feeding, online riveting, cutting and sorting," and mainly includes a feeding module 4, a transmission module 5, a riveting module 6, a detection and marking module 7, a material unloading and sorting module 8, and a control system.
[0042] The aforementioned feeding module 4 adopts a dual-path feeding design. The core of the transmission module 5 is the conveying track. The baseband 1 moves intermittently along the track under the drive of the motor. The front end of the conveying track includes the baseband conveying track 501 and the finger conveying track 502.
[0043] The first path is the baseband feeding path, located on one side of the equipment. It includes a discharge tray 401, used to suspend and release the rolled baseband 1 raw material, and guide the baseband 1 raw material to the baseband conveyor track 501 located on the lower layer.
[0044] The second path is the finger feeding path, which is equipped with a vibratory feeder 402. The vibratory feeder 402 arranges the scattered fingers 2 in an orderly manner and transports them to the riveting station through the upper finger conveying track 502.
[0045] The riveting module 6 is located at the confluence section of the conveyor rails, where the front-end finger conveyor rail 502 and the baseband conveyor rail 501 converge in space. The riveting module 6 includes a drive device 601 and a riveting joint 602.
[0046] Furthermore, the drive unit 601 adopts a structure combining pneumatic transmission and gear transmission. When the base belt 1 is transported to this station, the contact finger 2 is sent out by the contact finger conveyor track 502 and falls precisely onto the base belt 1. Subsequently, the drive unit 601 drives the riveting joint 602 to press down, pressing the contact finger 2 into the connecting crossbeam 102 of the base belt 1, completing the surface contact riveting.
[0047] The aforementioned detection marking module 7 is located downstream of the riveting module 6.
[0048] Furthermore, the detection and marking module 7 includes an industrial camera 701 and a marking mechanism 702. The industrial camera 701 is mounted above the conveyor rail and is used to take online photos of the riveted products to detect the contact position, appearance dimensions and bevel consistency.
[0049] The marking mechanism 702 is located downstream of the industrial camera 701 and above the conveyor track. For defective products detected by the industrial camera 701, the control system instructs the marking mechanism 702 to mark the corresponding material strip position of the defective product with a visual mark, such as a dot or inkjet, so that subsequent processes can identify and reject it.
[0050] The aforementioned unloading and sorting module 8 is located at the end of the conveyor track.
[0051] The module includes a visual detector 801, a visual detector display screen 802 and a control system, a separation mechanism 9 and a rejection mechanism 10.
[0052] A vision detector 801 is positioned above the conveyor track to identify whether the aforementioned visual markings are present on the passing conveyor belt.
[0053] Separation mechanism 9, controlled by the system, uses an existing pneumatic cutter assembly to cut and separate the riveted watch strap contacts 3 from the material strip skeleton. Rejection mechanism 10 can employ an existing pneumatic separation pusher to change the drop path of defective products. Since the above mechanisms are all conventional automated actuators in the field, their specific mechanical structures will not be described in detail here.
[0054] The sorting logic is as follows: if the vision detector 801 does not identify the mark (i.e., qualified product), the separated product falls into the qualified product collection box 11; if the vision detector 801 identifies the mark (i.e. unqualified product), the rejection mechanism 10 is controlled to divert the separated product to the waste box 12.
[0055] The remaining watch strap waste continues to be transported after the product is cut, and is eventually wound into the receiving tray 13 on the upper right side of the equipment for recycling. A sensor 14 is also installed at the receiving tray 13 to monitor whether the watch strap waste is full.
[0056] The aforementioned control system is integrated into the enclosure and is also used to coordinate the actions of various motors, cameras, and sensors.
[0057] The working principle and method of the watch strap contact manufacturing system of the present invention are as follows: First, the components are pre-fabricated by cold forging. Stainless steel sheet is fed into the base strip cold forging die and processed into a continuous coiled base strip 1. Copper bar is fed into the finger cold forging die and processed into loose fingers 2.
[0058] Next, start the automatic feeding and conveying. Hang the rolled base tape 1 on the discharge tray 401 on one side of the equipment, and pour the contact fingers 2 into the vibratory feeder 402. Start the equipment, and the motor drives the base tape 1 to move step by step along the lower base tape conveyor track 501; at the same time, the vibratory feeder 402 orderly conveys the contact fingers 2 to the upper contact finger conveyor track 502 and sends them to the riveting station.
[0059] Next, precise riveting is performed. At the confluence of the tracks, the finger 2 is delivered from the upper track and precisely lands on the connecting beam 102 of the base band 1. Immediately, the drive device 601 is activated, driving the riveting joint 602 to press down, causing the side wall of the receiving cavity of the finger 2 to undergo plastic deformation and cover the base band 1, completing a firm surface contact connection.
[0060] Next, online inspection and marking are performed. The riveted conveyor belt continues to move forward, passing the industrial camera 701 above the track, which takes pictures of the product for inspection. If a defective product is detected, the control system instructs the downstream marking mechanism 702 to affix a visual mark to the corresponding defective product location.
[0061] Then, identification, separation, and sorting are performed. The conveyor belt is transported to the end area, where the vision detector 801 scans the products that have passed through.
[0062] If no mark (qualified product) is detected: the separation mechanism 9 cuts the product off the conveyor belt and it falls into the qualified product collection box 11.
[0063] If a mark (non-conforming product) is detected: the separation mechanism 9 cuts off the product and simultaneously triggers the rejection mechanism 10 to divert the non-conforming product to the waste box 12.
[0064] Finally, waste recycling. The remaining baseband 1 waste skeleton after the product is cut continues to be conveyed and eventually wound onto the receiving tray 13 on the other side of the equipment for recycling.
[0065] Through the above steps, the present invention realizes fully automated production from coil feeding to sorting of loose finished products, shortens the processing cycle of a single watch strap contact 3 to 15-20 seconds, and increases production capacity by 5-6 times.
[0066] Furthermore, when different specifications of products need to be produced (such as baseband width varying within the range of 3-8mm), operators only need to call the corresponding pre-stored parameter program in the control system and replace the corresponding die core of the cold forging mold. The entire changeover process takes only 3-5 minutes. Example 2
[0067] This embodiment is a simplification of Embodiment 1. For watch strap contact products with low precision requirements, the base strip surface strengthening process after cold forging is omitted.
[0068] Specifically, the processing of the base strip is simplified to two steps: substrate pretreatment and cold forging. After cold forging, the base strip directly enters the automated assembly and riveting system for assembly. This simplification further reduces the overall process, shortening the processing cycle of a single set to 12-15 seconds and increasing production efficiency by approximately 20%.
[0069] Those skilled in the art can reproduce this technology by reading this embodiment, therefore no further drawings or detailed descriptions are provided. Example 3
[0070] This embodiment replaces the raw material of the finger in Embodiment 1. The aforementioned finger material is replaced with brass rod.
[0071] Specifically, the cold forging process parameters remain unchanged. After cold forging, the brass contact fingers have a contact resistance of ≤80mΩ, meeting the conductivity requirements of ordinary electronic products, and the raw material cost is reduced by about 25% compared to copper. Those skilled in the art can reproduce this technology by reading this embodiment, so no further drawings or detailed descriptions are provided. Example 4
[0072] This embodiment replaces the riveting module in Embodiment 1. The driving device of the aforementioned riveting module is replaced with a hydraulic driving device. Specifically, the hydraulic driving device applies a pressure of 0.5-2 MPa for riveting. This embodiment is suitable for high-precision scenarios requiring higher riveting force. Those skilled in the art can reproduce this technology by reading this embodiment, therefore, no further drawings or detailed descriptions are provided.
[0073] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above descriptions are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any innovative improvements or substitutions based on the present invention should fall within the scope of the claims of the present invention. Furthermore, the parameters, materials, and processes mentioned in the above embodiments are not unique. Without departing from the technical essence of the present invention, those skilled in the art can make various alternative choices, and these alternative solutions should also be considered to fall within the scope of protection of the present invention.
Claims
1. A watch strap contact, characterized in that, include: The base strip is a cold-forged integral structure. The base strip has a connecting beam, and the connecting beam is provided with a first mating structure. The contact finger is a cold-forged one-piece structure. The contact finger has a connecting part, and the connecting part is provided with a second mating structure that is complementary to the first mating structure. The connecting part of the finger is attached to the connecting beam of the base band, the first mating structure and the second mating structure are interlocked and fixedly connected by riveting to form a surface contact.
2. The watch strap contact according to claim 1, characterized in that, The width tolerance of the connecting beam of the baseband is ±0.01mm; the surface of the baseband is a continuous and complete structure without gripping holes or slots.
3. A manufacturing system for watch strap contacts, used to manufacture watch strap contacts as described in claim 1 or 2, characterized in that, include: The cold forging unit includes a separate base strip cold forging die and a contact finger cold forging die, which are used to integrally form the base strip and the contact finger, respectively. An automatic assembly and riveting unit includes a feeding module, a transmission module, and a riveting module arranged in sequence. The transmission module is used to transport the baseband and contact finger to the riveting station and to position the baseband and contact finger. The riveting module is used to drive the actuator to adjust the relative position of the contact finger and the baseband after the baseband and contact finger are positioned, and then apply pressure to complete the riveting.
4. The manufacturing system according to claim 3, characterized in that, The automatic assembly and riveting unit also includes: The detection marking module is located downstream of the riveting module and is used to detect the riveted product to obtain detection data, and to mark unqualified products based on the detection data. The material unloading and sorting module is located downstream of the detection and marking module. It is used to identify the marking and perform classification and collection actions on the products. The classification and collection actions include collecting qualified products or rejecting unqualified products.
5. The manufacturing system according to claim 3, characterized in that, The transmission module includes a conveying track, the front end of which includes a baseband conveying track for conveying baseband and a touch finger conveying track for conveying touch fingers. The touch finger conveying track and the baseband conveying track converge at the riveting module.
6. The manufacturing system according to claim 3, characterized in that, The riveting module includes a hydraulic drive device, or a pneumatic drive device that combines pneumatic transmission and gear transmission.
7. The manufacturing system according to claim 4, characterized in that, It also includes a control system, which is communicatively connected to the transmission module, the riveting module and the detection marking module respectively; The control system is used to respond to product specification switching commands, call the corresponding preset production parameters, and adjust the pressure parameters of the riveting module based on the preset production parameters.
8. A method for manufacturing watch strap contacts, characterized in that, Includes the following steps: A baseband and a contact finger are obtained, both of which are integrally formed by cold forging. The control and transmission module delivers the baseband and the contact finger to the riveting station and positions them; The control riveting module aligns the connecting part of the touch finger with the connecting beam of the baseband, and applies pressure to the aligned connecting part and the connecting beam, so that the two undergo plastic deformation through a preset complementary mating structure and form a surface contact riveting connection.
9. The manufacturing method according to claim 8, characterized in that, The steps of acquiring the baseband and the touch finger specifically include: Based on the base cavity of the split cold forging die, the metal sheet is cold forged to form a base with a connecting beam and edge positioning structure in one piece; Based on the finger cavity of the split cold forging die, the conductive metal raw material is cold forged to form a finger with a connecting part and a bevel structure in one piece.
10. The manufacturing method according to claim 8, characterized in that, Following the step of applying pressure, the following is also included: Obtain the inspection data of the riveted product; Based on the test data, the quality grade of the product is determined, and unqualified products are marked. Based on the mark, the unloading and sorting module is controlled to perform classification and collection actions: if the mark is not identified, the separation mechanism is controlled to cut and collect the product; if the mark is identified, the rejection mechanism is controlled to reject the product.
Citation Information
Patent Citations
Stamping method of watchband contact finger and watchband contact finger
CN117772917A