Automatic riveting equipment for FPC (Flexible Printed Circuit) of left and right switches of automobile

Abstract

The invention discloses automobile left and right switch FPC riveting automatic equipment which comprises a rack. The main body jig front-back moving assembly is arranged on the rack, the front face hot riveting assembly is arranged above the main body jig front-back moving assembly, the left end face hot riveting assembly and the right end face hot riveting assembly are arranged on the left side and the right side of the main body jig front-back moving assembly, and the riveting point height detection assembly is arranged at the end of the main body jig front-back moving assembly. The main body jig front and back moving assembly is used for bearing a handle main body and an FPC (Flexible Printed Circuit) and sequentially conveying the handle main body and the FPC to a riveting position and a height detection position; the left end face hot riveting assembly is used for riveting the FPC on the left end face of the handle body conveyed to the riveting position, the right end face hot riveting assembly is used for riveting the FPC on the right end face of the handle body conveyed to the riveting position, and the front face hot riveting assembly is used for riveting the FPC on the front face of the handle body conveyed to the riveting position.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, and in particular to an automatic riveting device for automotive left and right switch FPCs. Background Technology

[0002] With the rapid development of automotive electronics technology, automotive switches, as a crucial component of vehicle control systems, are directly affected by the riveting process of their internal flexible printed circuit boards (FPCs), which impacts their reliability and performance stability. Traditional automotive left and right switch FPC riveting primarily relies on manual or semi-automatic equipment, presenting several problems: First, the riveting process depends on manual positioning and pressure application, leading to uneven riveting height, low precision, and a tendency for defects such as incomplete soldering or detachment, affecting product yield. Second, multi-face riveting (front, left, and right faces) requires multiple manual adjustments to the workpiece posture, which is cumbersome, inefficient, and prone to human error. Third, post-riveting height detection typically uses manual measuring tools, resulting in slow speed, poor accuracy, and an inability to achieve real-time feedback and automated quality control. Fourth, existing equipment lacks integrated design, failing to achieve seamless integration of riveting and detection, leading to discontinuous production processes and increased production costs. Furthermore, given the automotive industry's demands for high precision and reliability, traditional methods are insufficient for large-scale mass production. Therefore, there is an urgent need for equipment capable of automated multi-face riveting and riveting height detection to improve production efficiency and product quality. Therefore, this invention proposes an automatic riveting device for automotive left and right switch FPCs, aiming to solve the defects and shortcomings in the prior art. Summary of the Invention

[0003] To address the problems existing in the prior art, this invention provides an automatic riveting device for automotive left and right switch FPCs.

[0004] To achieve the above objectives, the present invention provides an automatic riveting device for automotive left and right switch FPCs, comprising: a frame, a main fixture front and rear moving assembly mounted on the frame, a front hot riveting assembly mounted above the main fixture front and rear moving assembly, a left end hot riveting assembly and a right end hot riveting assembly mounted on the left and right sides of the main fixture front and rear moving assembly, and a riveting point height detection assembly located at the end of the main fixture front and rear moving assembly. The main fixture front and rear moving assembly is used to carry the handle body and FPC, and sequentially send them to the riveting position and the height detection position; The left end face hot riveting assembly is used to rivet the FPC on the left end face of the handle body sent to the riveting position; the right end face hot riveting assembly is used to rivet the FPC on the right end face of the handle body sent to the riveting position; and the front hot riveting assembly is used to rivet the FPC on the front face of the handle body sent to the riveting position. The rivet height detection component is used to detect the height of the FPC rivets on the left, right, and front ends of the handle body after it has been riveted by the left end hot riveting component, the right end hot riveting component, and the front hot riveting component and sent to the height detection position.

[0005] Preferably, the main fixture forward and backward moving assembly includes a first forward and backward moving module, a servo rotation assembly disposed at the output end of the first forward and backward moving module, and the main fixture; the output end of the servo rotation assembly is connected to the main fixture and is used to drive the main fixture to rotate.

[0006] Preferably, the servo rotation assembly includes a fixed base plate, two fixed seats 1 and 2 arranged side by side on the fixed base plate, a servo motor mounted on the fixed seat 1, a shaft coupling mounted on the output end of the servo motor, an active rotating shaft connected to the shaft coupling, a rotating block 1 mounted on the end of the active rotating shaft, a fixed block 1 fixed to the rotating block 1, a buffer 1 arranged on both sides of the rotating block 1, a driven rotating shaft mounted on the fixed seat 2, a rotating block 2 mounted at one end of the driven rotating shaft, a fixed block 2 fixed to the rotating block 2 and opposite to the fixed block 1, a buffer 2 mounted at both ends of the rotating block 2, a photoelectric switch mounted on the fixed seat 2, and a photoelectric switch sensing sheet mounted at the other end of the driven rotating shaft and adapted to the photoelectric switch.

[0007] Preferably, the active rotating shaft is provided with a bearing seat and a locking nut, the active rotating shaft is mounted on a fixed seat through the bearing seat, and the locking nut is located at the rear end of the bearing seat. The driven shaft is provided with a bearing seat two and a lock nut two. The driven shaft is mounted on a fixed seat two through the bearing seat two. The lock nut two is located at the rear end of the bearing seat two. Both the first fixing block and the second fixing block are provided with slots for engaging with the main fixture. The main fixture includes a connecting plate, a placement platform mounted on the connecting plate, and spherical buckles disposed on the connecting plate and arranged on both sides of the placement platform; the placement platform has an installation slot for placing the handle body and its FPC. The side of the fixed base is also equipped with a negative pressure gauge, a vacuum generator, and a solenoid valve.

[0008] The first forward and backward moving module is also equipped with a photoelectric sensor, and the corresponding fixed base plate is equipped with a photoelectric sensing sheet adapted to the photoelectric sensor.

[0009] Preferably, the front hot riveting assembly includes a first left-right moving module, a first up-down moving module disposed on the output end of the first left-right moving module, a first hot riveting head mechanism disposed on the output end of the first up-down moving module, and a clamping auxiliary block assembly fixed to the first up-down moving module.

[0010] Preferably, the first hot riveting head mechanism includes a first upper and lower sliding plate, a first mounting plate disposed on the first upper and lower sliding plate, a first sliding component disposed on both sides of the first mounting plate, a first limiting baffle disposed at the end of the first mounting plate and facing the first sliding component, a first sliding connecting plate disposed on the first sliding component, a first heat insulation plate disposed on the first sliding connecting plate, a first heating seat mounted at the bottom of the first heat insulation plate, a first heating rod passing through the side of the first heating seat, a first upper riveting rod passing through the upper and lower surfaces of the first heating seat, and a first upper pressing plate mounted on the top of the first upper riveting rod.

[0011] Preferably, the clamping auxiliary block assembly includes a Z-axis slide cylinder and a clamping cylinder disposed on the output end of the Z-axis slide cylinder.

[0012] Preferably, both the left end face hot riveting assembly and the right end face hot riveting assembly include a second front-back moving module, a second up-down moving module disposed on the output end of the second front-back moving module, a second left-right moving module disposed on the output end of the second up-down moving module, and a second hot riveting head mechanism disposed on the output end of the second left-right moving module.

[0013] Preferably, the second hot riveting head mechanism includes a second upper and lower sliding plate, a second mounting plate disposed on the second upper and lower sliding plate, a second sliding assembly disposed on both sides of the second mounting plate, a second limiting baffle disposed at the end of the second mounting plate and facing the second sliding assembly, a second sliding connecting plate disposed on the second sliding assembly, a second heat insulation plate disposed on the second sliding connecting plate, a second heating seat mounted at the bottom of the second heat insulation plate, a second heating rod passing through the side of the second heating seat, a second upper riveting rod passing through the upper and lower surfaces of the second heating seat, and a second upper pressing plate mounted on the top of the second upper riveting rod.

[0014] Preferably, the rivet height detection component includes a third up-and-down moving module, a third left-and-right moving module disposed on the output end of the third up-and-down moving module, a slide base fixing plate disposed on the output end of the third left-and-right moving module, a laser sensor disposed on one end of the slide base fixing plate, a drag chain connecting plate disposed on the other end of the slide base fixing plate, and a drag chain connected to the drag chain connecting plate.

[0015] The technical solution of this invention has the following beneficial effects: This invention relates to the riveting and inspection process of the handle body and FPC on an automotive combination switch handle. It utilizes a main body fixture forward and backward moving component, a left end face hot riveting component, a right end face hot riveting component, a front hot riveting component, a rivet point height detection component, and a precision control system to achieve automatic riveting of the FPC and automatic detection of the rivet point height, while ensuring the accuracy of FPC riveting and the accuracy of rivet point height detection.

[0016] Achieve automated riveting and inspection integration: Through the collaborative design of the main fixture forward and backward moving components, front hot riveting components, left end hot riveting components, right end hot riveting components, and rivet height detection components, seamless connection is achieved between the handle body and the FPC for automated hot riveting and rivet height detection on multiple ends (front, left, and right ends), reducing manual intervention and improving production efficiency by more than 30%.

[0017] Improve riveting accuracy and consistency: Employ precision control using multi-axis linear modules (X-axis, Y-axis, Z-axis) and servo rotary components to ensure accurate alignment and rotation adjustment of the riveting position, avoiding errors from traditional manual operation. The riveting point height deviation is controlled within ±0.05mm, improving the product qualification rate.

[0018] Flexible handling of multiple end faces: The servo rotary component supports precise rotation of 90° and 180°. Combined with non-contact detection by the laser sensor, it enables sequential scanning and measurement of rivet points on different end faces, solving the problem of multi-directional processing and improving the comprehensiveness and reliability of detection.

[0019] Reduced production costs: Modular equipment design facilitates maintenance and upgrades, and multi-functionality reduces equipment investment; automated processes shorten production cycles, making it suitable for large-scale industrial production and supporting the sustainable development of the automotive electronics industry.

[0020] The main fixture of this invention features a front-to-back moving assembly. This assembly utilizes a linear module and a servo motor for forward and backward movement, along with a servo motor-controlled rotating structure, enabling precise positioning of both movement and rotation. The left, right, and front hot-riveting structures have XYZ axis adjustment modules, allowing for simultaneous riveting of products of different specifications and models. The front, left, and right ends of the handle body can be riveted simultaneously, reducing riveting time and improving production efficiency. The rivet height detection component of this invention uses a YZ module combined with a laser displacement sensor, and simultaneously performs height detection via the XR axis of the main body fixture's forward and backward movement components. This allows a single laser displacement sensor to detect multiple surfaces and multiple rivet points, and is much cheaper than commonly used 3D line scan height detection solutions. Attached Figure Description Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the main fixture moving forward and backward assembly of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the structure of the main fixture moving forward and backward assembly of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the servo rotation component of the present invention. Figure 1 ; Figure 5This is a schematic diagram of the servo rotation component of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the servo rotation component of the present invention. Figure 3 ; Figure 7 This is a schematic diagram of the front hot riveting assembly, the left end hot riveting assembly, and the right end hot riveting assembly of the present invention. Figure 8 This is a schematic diagram of the front hot riveting assembly of the present invention. Figure 1 ; Figure 9 This is a schematic diagram of the front hot riveting assembly of the present invention. Figure 2 ; Figure 10 This is a schematic diagram of the front hot riveting assembly of the present invention. Figure 3 ; Figure 11 This is a schematic diagram of the structure of the left end face hot riveting assembly of the present invention; Figure 12 This is a schematic diagram of the right end face hot riveting assembly of the present invention; Figure 13 This is a schematic diagram of the rivet height detection component of the present invention. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 meaning of the above terms in this invention according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Reference Figures 1 to 13 The present invention provides an automatic riveting device for automotive left and right switch FPCs, comprising: a frame, a main fixture front and rear moving assembly 1 mounted on the frame, a front hot riveting assembly 2 mounted above the main fixture front and rear moving assembly 1, a left end hot riveting assembly 3 and a right end hot riveting assembly 4 mounted on the left and right sides of the main fixture front and rear moving assembly 1, and a riveting point height detection assembly 5 located at the end of the main fixture front and rear moving assembly 1. The main fixture front and rear moving assembly 1 is used to carry the handle body and FPC, and sequentially send them to the riveting position and the height detection position; The left end face hot riveting assembly 3 is used to rivet the FPC on the left end face of the handle body sent to the riveting position, the right end face hot riveting assembly 4 is used to rivet the FPC on the right end face of the handle body sent to the riveting position, and the front hot riveting assembly 2 is used to rivet the FPC on the front face of the handle body sent to the riveting position. The rivet height detection component 5 is used to detect the height of the FPC rivets on the left, right, and front sides of the handle body after it has been riveted by the left end face hot riveting component 3, the right end face hot riveting component 4, and the front face hot riveting component 2 and then sent to the height detection position.

[0028] Furthermore, the main fixture forward and backward moving assembly 1 includes a first forward and backward moving module 11, a servo rotation assembly 12 disposed at the output end of the first forward and backward moving module 11, and a main fixture 13; the output end of the servo rotation assembly 12 is connected to the main fixture 13 and is used to drive the main fixture 13 to rotate. In this embodiment, the working principle of the main fixture forward and backward moving component 1 is as follows: During riveting, the first forward and backward moving module 11 is driven to move the servo rotating component 12 and the main fixture 13 to the riveting position, so that the front hot riveting component 2, the left end hot riveting component 3, and the right end hot riveting component 4 can perform riveting on the front, left end, and right end faces; when height detection is required, the first forward and backward moving module 11 is further driven to move the servo rotating component 12 and the main fixture 13 to the height detection position, so that the riveting point height detection component 5 can perform height detection. First, the rivet height of the rivet on the front of the main body is detected. Next, the main body fixture 13 can be driven to rotate 90° clockwise by the servo rotation component 12, which will drive the handle body and FPC on the main body fixture 13 to rotate 90° clockwise. The rivet height of the rivet on the left end face of the handle body and FPC is detected. Then, the main body fixture 13 is driven to rotate 180° counterclockwise to detect the rivet height of the rivet on the right end face of the handle body and FPC. After the detection is completed, the main body fixture 13 can be driven to rotate 90° clockwise to return to the center position, and then exit to the loading and unloading position for manual picking and placing of products.

[0029] The main fixture forward and backward moving component 1, through the integrated design of the first forward and backward moving module 11, the servo rotating component 12, and the main fixture 13, realizes automated transmission and orientation adjustment of the handle body and FPC during riveting and height detection processes. Specifically, the first forward and backward moving module 11 drives the servo rotating component 12 and the main fixture 13 to move in the forward and backward direction, sequentially transporting the handle body and FPC to the riveting position and height detection position, supporting multi-directional riveting operations of the front hot riveting component 2, the left end hot riveting component 3, and the right end hot riveting component 4 on the FPC. The output end of the servo rotating component 12 is connected to the main fixture 13, which can precisely drive the main fixture 13 to rotate clockwise or counterclockwise (such as 90° or 180°), thereby adjusting the posture of the handle body and FPC, and realizing the individual detection of the riveting point height on the front, left end, and right end faces. After the detection is completed, it is rotated back to the center and exits to the loading and unloading position, facilitating manual product handling and ensuring the continuity and efficiency of the entire riveting and detection process. Through the coordinated drive of the first forward and backward moving module and the servo rotating component, seamless transfer and rotation of the handle body and FPC are achieved, reducing manual operation and improving the automation level and overall processing speed of the production line. The servo rotating component 12 provides high-precision rotation functions (such as 90° clockwise and 180° counterclockwise) to ensure accurate orientation detection of rivet points on different end faces of the handle body at the height detection position, avoiding detection errors caused by positional deviations. It supports rapid switching between the riveting position and the height detection position, as well as sequential processing of multiple end faces (front, left, and right), achieving multi-purpose functionality and reducing equipment space occupation and manufacturing costs. Through precise movement and rotation mechanisms, comprehensive coverage of riveting and detection is ensured, improving the consistency and reliability of FPC rivet point height, and ultimately enhancing the overall quality and pass rate of automotive left and right switch products.

[0030] Furthermore, the servo rotation assembly 12 includes a fixed base plate 119, two side-by-side fixed seats 120 and 128 on the fixed base plate 119, a servo motor 121 on the fixed seat 120, a coupling 122 at the output end of the servo motor 121, an active rotating shaft connected to the coupling 122, a rotating block 125 mounted on the end of the active rotating shaft, a fixed block 126 fixed to the rotating block 125, a buffer 127 arranged on both sides of the rotating block 125, a driven rotating shaft on the fixed seat 128, a rotating block 131 at one end of the driven rotating shaft, a fixed block 132 fixed to the rotating block 131 and opposite to the fixed block 126, a buffer 134 at both ends of the rotating block 131, a photoelectric switch 135 on the fixed seat 128, and a photoelectric switch sensor 136 at the other end of the driven rotating shaft and adapted to the photoelectric switch 135. Furthermore, the active rotating shaft is provided with a bearing seat 124 and a locking nut 123. The active rotating shaft is mounted on the fixed seat 120 via the bearing seat 124, and the locking nut 123 is located at the rear end of the bearing seat 124. The driven rotating shaft is provided with a bearing seat 129 and a locking nut 130. The driven rotating shaft is mounted on the fixed seat 128 via the bearing seat 129, and the locking nut 130 is located at the rear end of the bearing seat 129. The fixing block 126 and the fixing block 132 are both provided with slots for engaging with the main fixture 13. In this embodiment, the working principle of the servo rotation component 12 is as follows: the servo motor 121 drives the active rotating shaft to rotate, thereby causing the rotating block 125 and its fixed block 126 to move, which in turn causes the main fixture 13 mounted on the fixed block 126 and the fixed block 132 to rotate. Specifically, the servo motor 121 drives the active rotating shaft connected by the shaft coupling 122 to rotate, thereby causing the rotating block 125 and the fixed block 126 to move. At the same time, through the linkage of the driven rotating shaft, the rotating block 131 and the fixed block 132, the synchronous rotation of the main fixture 13 is achieved. Bearing housing 124, anti-loosening nut 123, bearing housing 130, and anti-loosening nut 129 ensure stable installation and anti-loosening fixation of the driving and driven shafts; the slots on fixing block 126 and fixing block 132 are used for snap-fit ​​connection with the main fixture 13; buffer 127 and buffer 134 are arranged on both sides of the rotating blocks (rotating block 125 and rotating block 131) to provide buffer protection during rotation; photoelectric switch 135 and photoelectric switch sensor 136 are used to monitor the position of the driven shaft to ensure accurate feedback and control of the rotation angle. This assembly is used to drive the main fixture 13 to rotate clockwise or counterclockwise (e.g., 90° or 180°), ensuring accurate orientation adjustment of the main fixture 13 and avoiding positional deviations from affecting riveting and inspection quality.

[0031] Furthermore, the first forward and backward moving module 11 is also equipped with a photoelectric sensor 111, and the corresponding fixed base plate 119 is equipped with a photoelectric sensing sheet 112 adapted to the photoelectric sensor 111. The first forward and backward moving module 11 includes a first Y-axis linear module; the first forward and backward moving module 11 adopts a first Y-axis linear module to realize linear drive along the Y-axis direction, driving the servo rotating component 12 and the main fixture 13 to smoothly transfer between the riveting position, the height detection position, and the loading and unloading position, supporting the continuous operation of the entire automated process. The cooperation of the photoelectric sensor 111 and the photoelectric sensing sheet 112 realizes real-time sensing and feedback of the position of the first forward and backward moving module 11, avoids motion errors, and ensures accurate switching of the component between the riveting position and the height detection position.

[0032] Furthermore, the main fixture 13 includes a connecting plate 13a, a placement platform 13b mounted on the connecting plate 13a, and spherical buckles 13c arranged on the connecting plate 13a and on both sides of the placement platform 13b. The placement platform 13b has mounting slots for placing the handle body and its FPC. The connecting plate 13a serves as a base support, with the placement platform 13b mounted and the spherical buckles 13c arranged on both sides. The mounting slots in the placement platform 13b precisely match the shape of the handle body and its FPC, ensuring accurate positioning during riveting and testing. The side of the fixed base 120 is also equipped with a negative pressure gauge 66, a vacuum generator 77, and a solenoid valve 88.

[0033] Furthermore, the front hot riveting assembly 2 includes a first left-right moving module 21, a first up-down moving module 22 disposed on the output end of the first left-right moving module 21, a first hot riveting head mechanism 23 disposed on the output end of the first up-down moving module 22, and a clamping auxiliary block assembly fixed to the first up-down moving module 22. The first left-right moving module 21 includes a first X-axis linear module, and the first up-down moving module includes a first Z-axis linear module.

[0034] In this embodiment, the working principle of the front hot riveting assembly is as follows: the first left-right moving module 21 is driven, causing the first up-down moving module 22 to move left and right to the auxiliary block clamping station. The auxiliary block clamping working component 24 clamps the auxiliary block on the handle body. Then, the first left-right moving module 21 is driven, driving the first hot riveting head mechanism 23 to the front hot riveting station. The first up-down moving module 22 is driven, thereby enabling the first hot riveting head mechanism 23 to rivet the front of the FPC of the handle body. The first left-right moving module 21 and the first up-down moving module 22 cooperate to form a dual-degree-of-freedom motion system of the X and Z axes, which can accurately position and control the precise position of the first hot riveting head mechanism 23 at the riveting station. The auxiliary block clamping component, through cooperation with the first left-right moving module 21, can accurately clamp the auxiliary block on the handle body. Through the up-down movement of the first hot riveting head mechanism 23, precise riveting operations can be performed on the front of the FPC. The first vertical moving module 22 ensures that the distance between the rivet head and the FPC surface is appropriate, avoiding excessive pressure or insufficient pressing, and ensuring the quality of riveting.

[0035] Furthermore, the first hot riveting head mechanism 23 includes a first upper and lower sliding plate 230, a first mounting plate 231 disposed on the first upper and lower sliding plate 230, a first sliding assembly 232 disposed on both sides of the first mounting plate 231, a first limiting baffle 234 disposed at the end of the first mounting plate 231 and directly opposite the first sliding assembly 232, a first sliding connecting plate 233 disposed on the first sliding assembly 232, a first heat insulation plate 235 disposed on the first sliding connecting plate 233, a first heating seat 236 installed at the bottom of the first heat insulation plate 235, a first heating rod 237 passing through the side of the first heating seat 236, a first upper riveting rod 238 passing through the upper and lower surfaces of the first heating seat 236, and a first upper pressing plate 239 installed at the top of the first upper riveting rod 238. The first sliding assembly 232 includes a first slide rail and a first slider disposed on the first slide rail; In this embodiment, the first vertical sliding plate 230 serves as a basic support and is connected to the first vertical moving module 22. The first sliding component 232 (including a first slide rail and a first slider) provided on the first mounting plate 231 allows the first sliding connecting plate 233 to slide along the slide rail, enabling flexible adjustment during the riveting process, providing a stable guiding function, ensuring that the hot riveting head mechanism can move smoothly up and down during the riveting process, and improving the riveting quality. The first limiting baffle 234 faces the first sliding component 232 and provides limiting protection to prevent excessive sliding. By limiting the stroke of the vertical sliding, the first limiting baffle 234 ensures that the hot riveting head mechanism reaches the preset maximum pressing depth during the riveting process, avoiding damage to the FPC or handle body due to excessive pressing, and improving the safety and stability of operation. The first heat insulation plate 235 installed on the first sliding connecting plate 233 isolates heat transmission, preventing the heating part from overheating other components, ensuring that the equipment can still operate stably under long-term operation, and extending the service life of the first heating seat 236 and the first heating rod 237. To ensure structural safety, the first heating seat 236 is heated by the first heating rod 237 on its side, and the heat and pressure are conducted through the first upper riveting rod 238. The first upper clamping plate 239 assists in fixing the first upper riveting rod 238. The cooperation between the first heating seat 236 and the first heating rod 238 provides continuous and uniform heating, ensuring that the FPC can be riveted under uniform temperature conditions during the riveting process, effectively controlling the riveting quality and avoiding thermal damage caused by uneven heating. This mechanism is used to press down at the front hot riveting station to perform hot melt riveting on the FPC, ensuring a firm connection between the FPC and the handle body, and supporting subsequent riveting point height detection.

[0036] Furthermore, the clamping auxiliary block assembly includes a Z-axis slide cylinder 24 and a clamping cylinder 25 disposed on the output end of the Z-axis slide cylinder 24; wherein the working principle of the clamping auxiliary block assembly is as follows: the Z-axis slide cylinder 24 drives the clamping cylinder 25 to move to the clamping position, and then the clamping cylinder drives to clamp the auxiliary block.

[0037] Furthermore, the left end face hot riveting assembly 3 and the right end face hot riveting assembly 4 each include a second front-back moving module (331, 441), a second up-down moving module (332, 442) disposed on the output end of the second front-back moving module (331, 441), a second left-right moving module (333, 443) disposed on the output end of the second up-down moving module (332, 442), and a second hot riveting head mechanism (334, 444) disposed on the output end of the second left-right moving module (333, 443).

[0038] In this embodiment, the working principle of the left end face hot riveting assembly 3 and the right end face hot riveting assembly 4 is as follows: the second forward and backward moving modules (331, 441) drive the second up and down moving modules (332, 442) to move forward and backward to the riveting position; the second left and right moving modules (333, 443) drive the second hot riveting head mechanism (334, 444) to rivet the left and right end faces of the handle body FPC; the second forward and backward moving modules (331, 441) include a second Y-axis linear module, the second left and right moving modules include a second X-axis linear module, and the second up and down moving modules include a second Z-axis linear module. This achieves precise positioning via three-axis linkage: the second Y-axis linear module feeds the components forward and backward to the riveting position, the second X-axis linear module performs fine-tuning left and right, and the second Z-axis linear module controls the up and down pressing stroke, enabling the hot riveting head mechanism to achieve precise and repeatable alignment and pressing of the left / right end face FPC. Specifically, the second forward and backward moving modules (331, 441) drive the second up and down moving modules (332, 442) to move along the forward and backward direction (Y-axis), conveying the component to the riveting position; the second up and down moving modules (332, 442) provide adjustment in the up and down direction (Z-axis); the second left and right moving modules (333, 443) drive the second hot riveting head mechanism (334, 444) to move along the left and right direction (X-axis), precisely riveting the left or right end face of the FPC of the handle body. These components work together to ensure the hot-melt fixation of the FPC on the side of the handle body, support the completion of the multi-directional riveting process, and cooperate with the front hot riveting components to achieve a firm connection of the entire FPC of the handle body.

[0039] Furthermore, the second hot riveting head mechanism (334, 444) includes a second upper and lower sliding plate, a second mounting plate disposed on the second upper and lower sliding plate, second sliding components disposed on both sides of the second mounting plate, a second limiting baffle disposed at the end of the second mounting plate and directly opposite the second sliding components, a second sliding connecting plate disposed on the second sliding components, a second heat insulation plate disposed on the second sliding connecting plate, a second heating seat mounted at the bottom of the second heat insulation plate, a second heating rod passing through the side of the second heating seat, a second upper riveting rod passing through the upper and lower surfaces of the second heating seat, and a second upper pressing plate mounted on the top of the second upper riveting rod. The second sliding component includes a second slide rail and a second slider disposed on the second slide rail. In this embodiment, the structure of the second hot riveting head mechanism (334, 444) is the same as the structure of the first hot riveting head mechanism 23, and will not be described again by the applicant.

[0040] Furthermore, the rivet height detection component 5 includes a third up-down moving module 501, a third left-right moving module 502 disposed on the output end of the third up-down moving module 501, a slide base fixing plate disposed on the output end of the third left-right moving module 502, a laser sensor 503 disposed on one end of the slide base fixing plate, a drag chain connecting plate disposed on the other end of the slide base fixing plate, and a drag chain connected to the drag chain connecting plate.

[0041] The third vertical movement module 501 includes a third Z-axis linear module, and the third horizontal movement module 502 includes a third X-axis linear module. In this embodiment, the working principle of the rivet height detection component 5 is as follows: the third vertical movement module 501 drives the third horizontal movement module 502 to move vertically. The third horizontal movement module 502 can then drive the laser sensor 503 to move, thereby cooperating with the servo rotation component 12 of the main fixture front and rear movement component 1 to drive the main fixture 13 to rotate, thereby detecting the FPC rivet height on the left end face, right end face, and front face of the handle body. Specifically, the third vertical movement module 501 (third Z-axis linear module) drives the third horizontal movement module 502 to move along the vertical direction (Z-axis) to provide vertical adjustment; the third horizontal movement module 502 (third X-axis linear module) drives the slide base fixing plate to move along the horizontal direction (X-axis), driving the laser sensor 503 at one end to perform precise scanning and measurement. This component, as a whole, is used in conjunction with the servo rotation component 12 of the main fixture's forward and backward movement component 1 at the height detection position. Through the multi-axis movement of the laser sensor 503, it performs non-contact detection of the FPC rivet height on the left, right, and front ends of the handle body, ensuring accurate data acquisition and supporting final product quality verification. The coordinated drive of the third linear module's Z-axis and the third X-axis linear module enables precise multi-directional positioning and movement of the laser sensor 503. Combined with the multi-end-face adjustment of the servo rotation component, it ensures comprehensive, non-contact measurement of the rivet height, improving detection accuracy and resolution.

[0042] The working principle of this invention is as follows: First, the FPC is manually installed on the handle body. Then, the body and the FPC are placed together on the main fixture 13 in the main fixture front and back moving assembly 1. The first front and back moving module 11 of the main fixture front and back moving assembly 1 is driven to move the main fixture 13 forward to the riveting position. Then, the left end face hot riveting assembly 3, the right end face hot riveting assembly 4, and the front face hot riveting assembly 2 start working to rivet the FPC on the left end face, right end face, and front face of the handle body together. After riveting is completed, the main fixture 13 moves forward to the height detection position via the first forward and backward movement module 11. The riveting height detection component 5 first detects the rivet height of the rivet on the front of the main body. Then, the servo rotation component 12 of the fixture forward and backward movement component 1 rotates, causing the main fixture 13 to rotate 90° clockwise to detect the rivet height of the rivet on the left end face of the handle body. Then, the main fixture 13 is rotated 180° counterclockwise to detect the rivet height of the rivet on the right end face of the handle body. After the detection is completed, the main fixture 13 is rotated 90° clockwise to return to the center position and then exits to the loading / unloading position for manual product handling. This action is repeated sequentially.

[0043] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An automatic riveting device for automotive left and right switch FPCs, characterized in that, include: The frame includes a main fixture front-to-back moving assembly mounted on the frame, a front hot riveting assembly mounted above the main fixture front-to-back moving assembly, a left end hot riveting assembly and a right end hot riveting assembly mounted on the left and right sides of the main fixture front-to-back moving assembly, and a rivet point height detection assembly located at the end of the main fixture front-to-back moving assembly. The main fixture front and rear moving assembly is used to carry the handle body and FPC, and sequentially send them to the riveting position and the height detection position; The left end face hot riveting assembly is used to rivet the FPC on the left end face of the handle body sent to the riveting position; the right end face hot riveting assembly is used to rivet the FPC on the right end face of the handle body sent to the riveting position; and the front hot riveting assembly is used to rivet the FPC on the front face of the handle body sent to the riveting position. The rivet height detection component is used to detect the height of the FPC rivets on the left, right, and front ends of the handle body after it has been riveted by the left end hot riveting component, the right end hot riveting component, and the front hot riveting component and sent to the height detection position.

2. The automatic riveting equipment for automotive left and right switch FPCs according to claim 1, characterized in that, The main fixture forward and backward moving assembly includes a first forward and backward moving module, a servo rotation component disposed at the output end of the first forward and backward moving module, and the main fixture; the output end of the servo rotation component is connected to the main fixture and is used to drive the main fixture to rotate.

3. The automatic riveting equipment for automotive left and right switch FPCs according to claim 1, characterized in that, The servo rotation assembly includes a fixed base plate, two fixed seats 1 and 2 arranged side by side on the fixed base plate, a servo motor mounted on fixed seat 1, a shaft coupling mounted on the output end of the servo motor, a drive shaft connected to the shaft coupling, a rotating block 1 mounted on the end of the drive shaft, a fixed block 1 fixed to the rotating block 1, a buffer 1 arranged on both sides of the rotating block 1, a driven shaft mounted on fixed seat 2, a rotating block 2 mounted at one end of the driven shaft, a fixed block 2 fixed to the rotating block 2 and opposite to the fixed block 1, a buffer 2 mounted at both ends of the rotating block 2, a photoelectric switch mounted on fixed seat 2, and a photoelectric switch sensing plate mounted at the other end of the driven shaft and adapted to the photoelectric switch.

4. The automatic riveting equipment for automotive left and right switch FPCs according to claim 1, characterized in that, The active rotating shaft is provided with a bearing seat and a locking nut. The active rotating shaft is mounted on a fixed seat through the bearing seat and the locking nut is located at the rear end of the bearing seat. The driven shaft is provided with a bearing seat two and a lock nut two. The driven shaft is mounted on a fixed seat two through the bearing seat two. The lock nut two is located at the rear end of the bearing seat two. Both the first fixing block and the second fixing block are provided with slots for engaging with the main fixture. The main fixture includes a connecting plate, a placement platform mounted on the connecting plate, and spherical buckles disposed on the connecting plate and arranged on both sides of the placement platform; the placement platform has an installation slot for placing the handle body and its FPC. The first forward and backward moving module is also equipped with a photoelectric sensor, and the corresponding fixed base plate is equipped with a photoelectric sensing sheet adapted to the photoelectric sensor.

5. The automatic riveting equipment for automotive left and right switch FPCs according to claim 1, characterized in that, The front hot riveting assembly includes a first left-right moving module, a first up-down moving module disposed on the output end of the first left-right moving module, a first hot riveting head mechanism disposed on the output end of the first up-down moving module, and a clamping auxiliary block assembly fixed to the first up-down moving module.

6. The automatic riveting equipment for automotive left and right switch FPCs according to claim 1, characterized in that, The first hot riveting head mechanism includes a first upper and lower sliding plate, a first mounting plate disposed on the first upper and lower sliding plate, a first sliding component disposed on both sides of the first mounting plate, a first limiting baffle disposed at the end of the first mounting plate and facing the first sliding component, a first sliding connecting plate disposed on the first sliding component, a first heat insulation plate disposed on the first sliding connecting plate, a first heating seat mounted at the bottom of the first heat insulation plate, a first heating rod passing through the side of the first heating seat, a first upper riveting rod passing through the upper and lower parts of the first heating seat, and a first upper pressing plate mounted on the top of the first upper riveting rod.

7. The automatic riveting equipment for automotive left and right switch FPCs according to claim 1, characterized in that, The clamping auxiliary block assembly includes a Z-axis slide cylinder and a clamping cylinder disposed on the output end of the Z-axis slide cylinder.

8. The automatic riveting equipment for automotive left and right switch FPCs according to claim 1, characterized in that, The left end face hot riveting assembly and the right end face hot riveting assembly both include a second front-back moving module, a second up-down moving module disposed on the output end of the second front-back moving module, a second left-right moving module disposed on the output end of the second up-down moving module, and a second hot riveting head mechanism disposed on the output end of the second left-right moving module.

9. The automatic riveting equipment for automotive left and right switch FPCs according to claim 1, characterized in that, The second hot riveting head mechanism includes a second upper and lower sliding plate, a second mounting plate disposed on the second upper and lower sliding plate, a second sliding assembly disposed on both sides of the second mounting plate, a second limiting baffle disposed at the end of the second mounting plate and directly opposite the second sliding assembly, a second sliding connecting plate disposed on the second sliding assembly, a second heat insulation plate disposed on the second sliding connecting plate, a second heating seat mounted at the bottom of the second heat insulation plate, a second heating rod passing through the side of the second heating seat, a second upper riveting rod passing through the upper and lower surfaces of the second heating seat, and a second upper pressing plate mounted on the top of the second upper riveting rod.

10. The automatic riveting equipment for automotive left and right switch FPCs according to claim 1, characterized in that, The rivet height detection component includes a third up-down moving module, a third left-right moving module disposed on the output end of the third up-down moving module, a slide base fixing plate disposed on the output end of the third left-right moving module, a laser sensor disposed on one end of the slide base fixing plate, a drag chain connecting plate disposed on the other end of the slide base fixing plate, and a drag chain connected to the drag chain connecting plate.

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